Visual Portfolio, Photo Gallery & Post Grid - Version 1.11.0

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Developer nko
Plugin Icon 128x128 Visual Portfolio, Photo Gallery & Post Grid
Version 1.11.0
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Code changes from version 1.10.0 to 1.11.0

Files changed (50) hide show
  1. assets/admin/css/style.min.css +2 -2
  2. assets/admin/js/gutenberg-block.min.js +2 -2
  3. assets/admin/js/mce-dropdown.min.js +2 -2
  4. assets/admin/js/mce-localize.min.js +1 -1
  5. assets/admin/js/script.min.js +3 -3
  6. assets/admin/js/vc-frontend.min.js +2 -2
  7. assets/css/noscript.min.css +5 -0
  8. assets/css/style.min.css +2 -2
  9. assets/js/lazysizes-object-fit-cover.min.js +1 -1
  10. assets/js/script-preview.min.js +3 -3
  11. assets/js/script.min.js +3 -3
  12. assets/vendor/codemirror/addon/comment/comment.js +1 -1
  13. assets/vendor/codemirror/addon/comment/continuecomment.js +1 -1
  14. assets/vendor/codemirror/addon/dialog/dialog.js +1 -1
  15. assets/vendor/codemirror/addon/edit/closebrackets.js +6 -9
  16. assets/vendor/codemirror/addon/edit/closetag.js +1 -1
  17. assets/vendor/codemirror/addon/edit/continuelist.js +11 -1
  18. assets/vendor/codemirror/addon/edit/matchbrackets.js +11 -6
  19. assets/vendor/codemirror/addon/edit/matchtags.js +1 -1
  20. assets/vendor/codemirror/addon/edit/trailingspace.js +1 -1
  21. assets/vendor/codemirror/addon/fold/brace-fold.js +2 -2
  22. assets/vendor/codemirror/addon/fold/comment-fold.js +1 -1
  23. assets/vendor/codemirror/addon/fold/foldcode.js +1 -1
  24. assets/vendor/codemirror/addon/fold/foldgutter.js +1 -1
  25. assets/vendor/codemirror/addon/fold/indent-fold.js +1 -1
  26. assets/vendor/codemirror/addon/fold/markdown-fold.js +1 -1
  27. assets/vendor/codemirror/addon/fold/xml-fold.js +1 -1
  28. assets/vendor/codemirror/addon/hint/anyword-hint.js +1 -1
  29. assets/vendor/codemirror/addon/hint/css-hint.js +1 -1
  30. assets/vendor/codemirror/addon/hint/html-hint.js +3 -1
  31. assets/vendor/codemirror/addon/hint/javascript-hint.js +1 -1
  32. assets/vendor/codemirror/addon/hint/show-hint.js +25 -10
  33. assets/vendor/codemirror/addon/hint/sql-hint.js +24 -19
  34. assets/vendor/codemirror/addon/hint/xml-hint.js +12 -6
  35. assets/vendor/codemirror/addon/lint/coffeescript-lint.js +1 -1
  36. assets/vendor/codemirror/addon/lint/css-lint.js +1 -1
  37. assets/vendor/codemirror/addon/lint/html-lint.js +1 -1
  38. assets/vendor/codemirror/addon/lint/javascript-lint.js +1 -1
  39. assets/vendor/codemirror/addon/lint/json-lint.js +1 -1
  40. assets/vendor/codemirror/addon/lint/lint.js +1 -1
  41. assets/vendor/codemirror/addon/lint/yaml-lint.js +2 -2
  42. assets/vendor/codemirror/addon/scroll/annotatescrollbar.js +1 -1
  43. assets/vendor/codemirror/addon/scroll/scrollpastend.js +1 -1
  44. assets/vendor/codemirror/addon/scroll/simplescrollbars.js +1 -1
  45. assets/vendor/codemirror/addon/search/jump-to-line.js +5 -4
  46. assets/vendor/codemirror/addon/search/match-highlighter.js +1 -1
  47. assets/vendor/codemirror/addon/search/matchesonscrollbar.js +1 -1
  48. assets/vendor/codemirror/addon/search/search.js +20 -14
  49. assets/vendor/codemirror/addon/search/searchcursor.js +1 -1
  50. assets/vendor/codemirror/codemirror.js +6789 -6834
assets/admin/css/style.min.css CHANGED
@@ -1,5 +1,5 @@
1
  /*!
2
  * Name : Visual Portfolio
3
- * Version : 1.10.0
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  * Author : nK https://nkdev.info
5
- */.dashicons-visual-portfolio,.dashicons-visual-portfolio-gray,.mce-widget .mce-i-visual-portfolio{background-image:url("../images/icon.svg");background-repeat:no-repeat;background-position:center center;background-size:15px;opacity:.6}.mce-widget .mce-i-visual-portfolio{background-image:url("../images/icon-mce.svg");opacity:1}.menu-top.current .dashicons-visual-portfolio,.menu-top:hover .dashicons-visual-portfolio,.wp-has-current-submenu .dashicons-visual-portfolio{opacity:1}.dashicons-visual-portfolio-gray,.mce-i-visual-portfolio-gray{background-image:url("../images/icon-gray.svg")}.vc_element-icon[data-is-container="true"].icon-visual-portfolio,.vc_element-icon.icon-visual-portfolio{background-position:50% 50%}.vc_element-icon.icon-visual-portfolio,.vc_control-visual-portfolio{position:relative;overflow:hidden;background-image:url("../images/icon-vc.png");background-position:50% 50%;background-size:cover;border-radius:3px}.vc_add-element-container .icon-visual-portfolio{position:absolute}.vc_control-visual-portfolio{display:inline-block;width:18px;height:18px;margin:0 2px;cursor:pointer}.vc_controls-row .vc_control-visual-portfolio{float:right;margin:4px}.vc_control-visual-portfolio-overlay{position:absolute;top:0;right:0;bottom:0;left:0;z-index:2}.vp-row{display:flex;flex:0 1 auto;flex-direction:row;flex-wrap:wrap;box-sizing:border-box;margin-right:-15px;margin-left:-15px}.vp-col-1,.vp-col-2,.vp-col-3,.vp-col-4,.vp-col-5,.vp-col-6,.vp-col-7,.vp-col-8,.vp-col-9,.vp-col-10,.vp-col-11,.vp-col-12{flex:0 0 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.wrap{margin:0}.post-type-vp_lists.post-php #poststuff,.post-type-vp_lists.post-new-php #poststuff{padding-top:0}.post-type-vp_lists.post-php #wpfooter,.post-type-vp_lists.post-new-php #wpfooter{display:none}.post-type-vp_lists.post-php #wpbody-content,.post-type-vp_lists.post-new-php #wpbody-content{padding-bottom:0}.post-type-vp_lists.post-php #post-body.columns-2 #postbox-container-1,.post-type-vp_lists.post-new-php #post-body.columns-2 #postbox-container-1{position:fixed;top:0;right:300px;bottom:0;width:300px;overflow:auto;-webkit-overflow-scrolling:touch}html.wp-toolbar .post-type-vp_lists.post-php #post-body.columns-2 #postbox-container-1,html.wp-toolbar .post-type-vp_lists.post-new-php #post-body.columns-2 #postbox-container-1{top:32px}@media only screen and (max-width: 850px){.post-type-vp_lists.post-php #post-body.columns-2 #postbox-container-1,.post-type-vp_lists.post-new-php #post-body.columns-2 #postbox-container-1{position:relative;top:auto;right:auto;bottom:auto;width:100%;margin-right:0}}.post-type-vp_lists.post-php #postbox-container-2,.post-type-vp_lists.post-new-php #postbox-container-2{position:absolute;top:0;right:0;bottom:0;left:0;width:calc(100% - 300px);min-height:calc(100vh - 32px);overflow:auto;-webkit-overflow-scrolling:touch}@media only screen and (max-width: 850px){.post-type-vp_lists.post-php #postbox-container-2,.post-type-vp_lists.post-new-php #postbox-container-2{right:0;bottom:auto;width:100%}}.post-type-vp_lists.post-php .columns-2 #side-sortables,.post-type-vp_lists.post-new-php .columns-2 #side-sortables{width:auto}.post-type-vp_lists.post-php .notice,.post-type-vp_lists.post-new-php .notice{margin:0;margin-right:300px;margin-bottom:1px}@media only screen and (max-width: 850px){.post-type-vp_lists.post-php .notice,.post-type-vp_lists.post-new-php .notice{margin-right:0}}.post-type-vp_lists.post-php #poststuff .postbox,.post-type-vp_lists.post-new-php #poststuff .postbox{margin-bottom:0;border-color:#e2e4e7;border-top:0;border-right:0}.post-type-vp_lists.post-php #poststuff .postbox>h2,.post-type-vp_lists.post-new-php #poststuff .postbox>h2{padding:15px;border-bottom:none}.post-type-vp_lists.post-php #poststuff .postbox>.handlediv,.post-type-vp_lists.post-new-php #poststuff .postbox>.handlediv{height:50px}.post-type-vp_lists.post-php #poststuff .postbox>.inside,.post-type-vp_lists.post-new-php #poststuff .postbox>.inside{padding:15px;padding-top:0}.vp-control{display:flex;flex-wrap:wrap;align-items:center;margin-bottom:19px}.vp-control>label{width:100%;margin-bottom:5px}.vp-control>.vp-control-description{width:100%;margin:2px 0 5px;font-size:13px;font-style:italic;color:#666}.vp-control.vp-control-checkbox,.vp-control.vp-control-toggle{flex-wrap:nowrap}.vp-control.vp-control-checkbox>label,.vp-control.vp-control-toggle>label{margin-bottom:0}.vp-control.vp-control-textarea 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[type="range"]::-webkit-slider-thumb{box-sizing:border-box;width:18px;height:18px;margin-top:-7px;cursor:pointer;background:#555d66;background-clip:padding-box;border:4px solid transparent;border-radius:50%;-webkit-appearance:none;appearance:none}.vp-control-range [type="range"]::-moz-range-thumb{box-sizing:border-box;width:18px;height:18px;cursor:pointer;background:#555d66;background-clip:padding-box;border:4px solid transparent;border-radius:50%}.vp-control-range [type="range"]::-ms-thumb{box-sizing:border-box;width:14px;height:14px;margin-top:0;cursor:pointer;background:#555d66;background-clip:padding-box;border:2px solid transparent;border-radius:50%}.vp-control-range [type="range"]:focus{outline:none}.vp-control-range [type="range"]:focus::-webkit-slider-thumb{color:#191e23;background-color:#fff;outline:2px solid transparent;outline-offset:-2px;box-shadow:inset 0 0 0 1px #6c7781, inset 0 0 0 2px #fff}.vp-control-range [type="range"]:focus::-moz-range-thumb{color:#191e23;background-color:#fff;outline:2px solid transparent;outline-offset:-2px;box-shadow:inset 0 0 0 1px #6c7781, inset 0 0 0 2px #fff}.vp-control-range [type="range"]:focus::-ms-thumb{color:#191e23;background-color:#fff;outline:2px solid transparent;outline-offset:-2px;box-shadow:inset 0 0 0 1px #6c7781, inset 0 0 0 2px #fff}.vp-control-range [type="range"]::-webkit-slider-runnable-track{height:3px;margin-top:-4px;cursor:pointer;background:#e2e4e7;border-radius:1.5px}.vp-control-range [type="range"]::-moz-range-track{height:3px;cursor:pointer;background:#e2e4e7;border-radius:1.5px}.vp-control-range [type="range"]::-ms-track{height:3px;margin-top:-4px;color:transparent;cursor:pointer;background:#e2e4e7;border-color:transparent;border-radius:1.5px}.vp-control-toggle,.vp-control-toggle *{box-sizing:border-box}.vp-control-toggle .vp-toggle{position:relative}.vp-control-toggle .vp-toggle .vp-toggle__track{content:"";display:inline-block;box-sizing:border-box;width:36px;height:18px;vertical-align:top;background-color:#fff;border:2px solid #6c7781;border-radius:9px;transition:background .2s ease}.vp-control-toggle .vp-toggle .vp-toggle__track::after{content:"";position:absolute;display:block;top:50%;right:5px;width:3px;height:3px;margin-top:-3px;border:1.5px solid #6c7781;border-radius:3px}.vp-control-toggle .vp-toggle:hover .vp-toggle__track{background-color:#e2e4e7}.vp-control-toggle .vp-toggle [type="checkbox"]:checked ~ .vp-toggle__track{background-color:#33b3db;border:2px solid #33b3db}.vp-control-toggle .vp-toggle [type="checkbox"]:checked ~ .vp-toggle__track::after{top:50%;right:auto;left:8px;width:0;height:5px;margin-top:-3px;border:0;border-right:2px solid #fff;border-radius:0}.vp-control-toggle .vp-toggle .vp-toggle__thumb{position:absolute;display:block;top:4px;left:4px;width:10px;height:10px;background-color:#6c7781;border:5px solid 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.vp-control-image-dropdown__content .vp-image-picker+ul.thumbnails.image_picker_selector li.group,.vp-control-image-dropdown .vp-control-image-dropdown__content .vp-image-picker+ul.thumbnails.image_picker_selector li.group_title{flex:0 0 100%;max-width:100%}.vp-control-image-dropdown .vp-control-image-dropdown__content .vp-image-picker+ul.thumbnails.image_picker_selector li .thumbnail{padding:3px}.vp-control-image-dropdown .vp-control-image-dropdown__content .vp-image-picker+ul.thumbnails.image_picker_selector li img{width:100%;height:auto}.vp-control-image-dropdown.active .vp-control-image-dropdown__content{display:block}.vp-oembed-preview{position:relative;width:100%;padding-top:56.25%;color:#a2a2a2;background-color:#f1f1f1;border:1px solid #e8e8e8}.vp-oembed-preview::after{content:"\f126";position:absolute;display:block;top:50%;left:50%;width:20px;height:20px;margin-top:-10px;margin-left:-10px;font-family:dashicons;font-size:20px;font-style:normal;font-weight:400;line-height:1;text-align:center;text-decoration:inherit;vertical-align:top;z-index:1;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.vp-oembed-preview>iframe{position:absolute;top:0;left:0;width:100%;height:100%;z-index:2}.vp-portfolio__thumbnail{position:relative;display:block;max-width:70px;padding-top:100%;overflow:hidden;border-radius:3px}.vp-portfolio__thumbnail img{position:absolute;display:block;top:0;left:0;width:100%;height:100%;-o-object-fit:cover;object-fit:cover}.vp-portfolio__thumbnail:empty{background-color:#f1f1f1;border:1px solid #e8e8e8}.vp-portfolio__thumbnail:empty,.vp-portfolio__thumbnail:empty:hover,.vp-portfolio__thumbnail:empty:active,.vp-portfolio__thumbnail:empty:focus{color:#a2a2a2}.vp-portfolio__thumbnail:empty::after{content:"\f128";position:absolute;display:block;top:50%;left:50%;width:20px;height:20px;margin-top:-10px;margin-left:-10px;font-family:dashicons;font-size:20px;font-style:normal;font-weight:400;line-height:1;text-align:center;text-decoration:inherit;vertical-align:top;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.wp-list-table th.column-portfolio_post_thumbs{width:70px}.wp-list-table th.column-vp_lists_post_shortcode{width:250px}@media screen and (max-width: 782px){.wp-list-table th.column-portfolio_post_thumbs{display:none}.wp-list-table tr:not(.inline-edit-row):not(.no-items) td.column-portfolio_post_thumbs{float:left;width:70px !important;min-width:70px}.wp-list-table tr:not(.inline-edit-row):not(.no-items) 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  /*!
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  * Name : Visual Portfolio
3
+ * Version : 1.11.0
4
  * Author : nK https://nkdev.info
5
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  /*!
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  Copyright (c) 2017 Jed Watson.
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  Licensed under the MIT License (MIT), see
@@ -9,4 +9,4 @@
9
  Licensed under the MIT License (MIT), see
10
  http://jedwatson.github.io/classnames
11
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  /*!
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  * Name : Visual Portfolio
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+ * Version : 1.11.0
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  * Author : nK https://nkdev.info
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  /*!
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  /*!
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  * Name : Visual Portfolio
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  * Author : nK https://nkdev.info
5
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  /*!
3
  * Name : Visual Portfolio
4
- * Version : 1.10.0
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  * Author : nK https://nkdev.info
6
  */
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  /*!
3
  * Name : Visual Portfolio
4
+ * Version : 1.11.0
5
  * Author : nK https://nkdev.info
6
  */
7
+ var r;(r=jQuery("#vp_preview > .vp-portfolio")).on("click",".vp-portfolio__item, .vp-portfolio__item a",function(e){e.preventDefault(),e.stopPropagation()}),window.iFrameResizer={heightCalculationMethod:function(){return r.outerHeight(!0)}}}});
assets/js/script.min.js CHANGED
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2
  /*!
3
  * Name : Visual Portfolio
4
- * Version : 1.10.0
5
  * Author : nK https://nkdev.info
6
  */
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  /*!
3
  * Name : Visual Portfolio
4
+ * Version : 1.11.0
5
  * Author : nK https://nkdev.info
6
  */
7
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p=i.attr("data-vp-popup-md-img")||s.src;p&&(e=(i.attr("data-vp-popup-md-img-size")||i.attr("data-vp-popup-img-size")||"1920x1080").split("x"),s.m={src:p,w:parseInt(e[0],10),h:parseInt(e[1],10)},s.msrc=p),s.o={src:s.src,w:s.w,h:s.h}}r.push(s)}}),r}(e),d={captionAndToolbarShowEmptyCaptions:!1,closeEl:m.show_close_button,captionEl:!0,fullscreenEl:m.show_fullscreen_button,zoomEl:m.show_zoom_button,shareEl:m.show_share_button,counterEl:m.show_counter,arrowEl:m.show_arrows,shareButtons:[{id:"facebook",label:h.pswp_share_fb,url:"https://www.facebook.com/sharer/sharer.php?u={{url}}"},{id:"twitter",label:h.pswp_share_tw,url:"https://twitter.com/intent/tweet?text={{text}}&url={{url}}"},{id:"pinterest",label:h.pswp_share_pin,url:"https://www.pinterest.com/pin/create/button/?url={{url}}&media={{image_url}}&description={{text}}"}],bgOpacity:1,tapToClose:!1,tapToToggleControls:!0,showHideOpacity:!0,galleryUID:t.uid,getThumbBoundsFn:function(t){if(!p[t]||!p[t].el)return!1;var i=l(p[t].el).find("img")[0];if(!i)return!1;var e=i.getBoundingClientRect(),o=window.pageYOffset||document.documentElement.scrollTop,s=parseFloat(a.css("top"))||0;return{x:e.left,y:e.top+o-s,w:e.width,h:e.height}}};if(n)if(d.galleryPIDs){for(var c=0;c<p.length;c++)if(p[c].pid===i){d.index=c;break}}else d.index=parseInt(i,10)-1;else d.index=parseInt(i,10);if(!isNaN(d.index)){o&&(d.showAnimationDuration=0);var f,_,w=new v(r,u,p,d),y=!1,g=!0;w.listen("beforeResize",function(){f=w.viewportSize.x*window.devicePixelRatio,y&&f<1e3?(y=!1,_=!0):!y&&f>=1e3&&(y=!0,_=!0),_&&!g&&w.invalidateCurrItems(),g&&(g=!1),_=!1}),w.listen("gettingData",function(t,i){i.html||(y?(i.src=i.o.src,i.w=i.o.w,i.h=i.o.h):(i.src=i.m.src,i.w=i.m.w,i.h=i.m.h))}),w.listen("resize",function(){s(this)}),w.listen("afterChange",function(){s(this)}),w.listen("beforeChange",function(){if(this&&this.itemHolders.length){var t=this.getCurrentIndex();this.itemHolders.forEach(function(i){if(i.el&&i.index!==t){var e=l(i.el).find(".vp-pswp-video iframe");e.length&&e.attr("src",e.attr("src"))}})}}),w.listen("destroy",function(){this&&this.itemHolders.length&&this.itemHolders.forEach(function(t){t.el&&l(t.el).find(".vp-pswp-video").remove()})}),w.init()}};t.$item.on("click.vpf-uid-".concat(t.uid),".vp-portfolio__item",function(i){if(l(this).closest(".vp-portfolio__item-wrap").find(".vp-portfolio__item-popup").length){i.preventDefault();var o=0,s=this;t.$item.find(".vp-portfolio__item-wrap .vp-portfolio__item-popup").each(function(t){return l(this).closest(".vp-portfolio__item-wrap").find(".vp-portfolio__item")[0]!==s||(o=t,!1)}),e(o,t.$item[0])}});var o=function(){var t=window.location.hash.substring(1),i={};if(t.length<5)return i;for(var e=t.split("&"),o=0;o<e.length;o++)if(e[o]){var s=e[o].split("=");s.length<2||(i[s[0]]=s[1])}return i}();o.pid&&o.gid===t.uid&&e(o.pid,t.$item[0],!0,!0)}function s(t,i){if(void 0!==i){var e,o=t.viewportSize.x,n=t.viewportSize.y,a=i.vw/i.vh,r=l(i.container),p=t.options.barsSize,d=0,c=0;p&&(d=p.top&&"auto"!==p.top?p.top:0,c=p.bottom&&"auto"!==p.bottom?p.bottom:0),e=a>o/(n-=d+c)?o:n*a,r.find(".vp-pswp-video").css("max-width",e),r.css({top:d,bottom:c})}else t&&t.itemHolders.length&&t.itemHolders.forEach(function(i){i.item&&i.item.html&&s(t,i.item)})}}},{key:"destroyPhotoswipe",value:function(){this.$item.off("click.vpf-uid-".concat(this.uid)),l(".vp-pswp-uid-".concat(this.uid)).remove()}},{key:"addItems",value:function(t,i){var e=this,o=e.$items_wrap.data("isotope"),s=e.$items_wrap.data("fjGallery"),n=e.$items_wrap.parent()[0].swiper;if(o){if(i){var a=e.$items_wrap.find(".vp-portfolio__item-wrap");e.$items_wrap.isotope("remove",a),e.$items_wrap.prepend(t).isotope("prepended",t)}else e.$items_wrap.append(t).isotope("appended",t);setTimeout(function(){e.initIsotope("layout")},0)}else if(s)i?(e.destroyFjGallery(),e.$items_wrap.find(".vp-portfolio__item-wrap").remove(),e.$items_wrap.prepend(t),e.initFjGallery()):(e.$items_wrap.append(t),e.initFjGallery("appendImages",t));else if(n){i&&n.removeAllSlides();var r=[];t.addClass("swiper-slide").each(function(){r.push(this)}),n.appendSlide(r)}e.emitEvent("addItems",[t,i])}},{key:"removeItems",value:function(t){this.$items_wrap.data("isotope")&&this.$items_wrap.isotope("remove",t),this.emitEvent("removeItems",[t])}},{key:"loadNewItems",value:function(t,i,e){var o=this;!o.loading&&t&&(o.loading=!0,o.$item.addClass("vp-portfolio__loading"),o.emitEvent("startLoadingNewItems",[t]),l.get(t,{},function(t){t=t.replace("<body",'<body><div id="vp-infinite-load-body"').replace("</body>","</div></body>");var s=l(t).filter("#vp-infinite-load-body"),n=s.find(".vp-portfolio.vp-uid-".concat(o.uid));if(n.length){var a=n.find(".vp-portfolio__items").html();o.$filter.length&&o.$filter.each(function(){var t=l(this),i="";i=t.parent().hasClass("vp-single-filter")?s.find('[class="'.concat(t.parent().attr("class").replace(" vp-single-filter__ready",""),'"] .vp-portfolio__filter-wrap')).html():n.find(".vp-portfolio__filter-wrap").html(),t.html(i)}),o.$sort.length&&o.$sort.each(function(){var t=l(this),i="";i=t.parent().hasClass("vp-single-sort")?s.find('[class="'.concat(t.parent().attr("class").replace(" vp-single-sort__ready",""),'"] .vp-portfolio__sort-wrap')).html():n.find(".vp-portfolio__sort-wrap").html(),t.html(i)}),o.$pagination.length&&o.$pagination.html(n.find(".vp-portfolio__pagination-wrap").html()),o.addItems(l(a),i),o.emitEvent("loadedNewItems",[n,n,t])}var r=n.attr("data-vp-next-page-url");o.options.nextPageUrl=r,o.$item.attr("data-vp-next-page-url",r),o.$item.removeClass("vp-portfolio__loading"),o.loading=!1,o.emitEvent("endLoadingNewItems"),o.prepareLazyLoad(),o.initCustomColors(),e&&e()}))}}])&&p(i.prototype,e),o&&p(i,o),t}();l(document).on("lazybeforeunveil",function(t){var i=l(t.target);i.hasClass("visual-portfolio-lazyload")&&(i.closest(".vp-portfolio__item-img").addClass("vp-portfolio__item-img-lazyloading"),i.closest(".vp-portfolio__thumbnail-img").addClass("vp-portfolio__thumbnail-img-lazyloading"))}),l(document).on("lazyloaded",function(t){var i=l(t.target);i.hasClass("visual-portfolio-lazyload")&&(i.closest(".vp-portfolio__item-img-lazyloading").removeClass("vp-portfolio__item-img-lazyloading"),i.closest(".vp-portfolio__thumbnail-img-lazyloading").removeClass("vp-portfolio__thumbnail-img-lazyloading"))}),l(".elementor").length&&l(document).on("init.vpf addItems.vpf",function(t,i){i.$item.find(".vp-portfolio__item a").each(function(){/\.(png|jpe?g|gif|svg)(\?.*)?$/i.test(this.href)&&l(this).attr("data-elementor-open-lightbox","no")})});var $=function(t){var i,e=Array.prototype.slice.call(arguments,1);return this.each(function(){if(void 0===i)if("object"===r(t)||void 0===t)this.vpf||(this.vpf=new x(l(this),t));else if(this.vpf){var o;i=(o=this.vpf)[t].apply(o,a(e))}}),void 0!==i?i:this};$.constructor=x;var S=jQuery.fn.vpf;jQuery.fn.vpf=$,jQuery.fn.vpf.noConflict=function(){return jQuery.fn.vpf=S,this},l(".vp-portfolio").vpf(),l(function(){l(".vp-portfolio").vpf()});var C=Object(o.b)(200,function(){n()(function(){l(".vp-portfolio:not(.vp-portfolio__ready)").vpf()})});window.MutationObserver?new window.MutationObserver(C).observe(document.documentElement,{childList:!0,subtree:!0}):l(document).on("DOMContentLoaded DOMNodeInserted load",function(){C()})},170:function(t,i,e){(function(i){var e;e="undefined"!=typeof window?window:void 0!==i?i:"undefined"!=typeof self?self:{},t.exports=e}).call(this,e(77))},30:function(t,i,e){"use strict";function o(t,i,e,o){var s,n=!1,a=0;function r(){s&&clearTimeout(s)}function p(){var p=this,l=Date.now()-a,d=arguments;function c(){a=Date.now(),e.apply(p,d)}n||(o&&!s&&c(),r(),void 0===o&&l>t?c():!0!==i&&(s=setTimeout(o?function(){s=void 0}:c,void 0===o?t-l:t)))}return"boolean"!=typeof i&&(o=e,e=i,i=void 0),p.cancel=function(){r(),n=!0},p}function s(t,i,e){return void 0===e?o(t,i,!1):o(t,e,!1!==i)}e.d(i,"b",function(){return o}),e.d(i,"a",function(){return s})},77:function(t,i){var e;e=function(){return this}();try{e=e||new Function("return this")()}catch(t){"object"==typeof window&&(e=window)}t.exports=e}});
assets/vendor/codemirror/addon/comment/comment.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
assets/vendor/codemirror/addon/comment/continuecomment.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
assets/vendor/codemirror/addon/dialog/dialog.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  // Open simple dialogs on top of an editor. Relies on dialog.css.
5
 
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  // Open simple dialogs on top of an editor. Relies on dialog.css.
5
 
assets/vendor/codemirror/addon/edit/closebrackets.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
@@ -11,6 +11,7 @@
11
  })(function(CodeMirror) {
12
  var defaults = {
13
  pairs: "()[]{}''\"\"",
 
14
  triples: "",
15
  explode: "[]{}"
16
  };
@@ -109,6 +110,9 @@
109
  var pairs = getOption(conf, "pairs");
110
  var pos = pairs.indexOf(ch);
111
  if (pos == -1) return CodeMirror.Pass;
 
 
 
112
  var triples = getOption(conf, "triples");
113
 
114
  var identical = pairs.charAt(pos + 1) == ch;
@@ -136,9 +140,7 @@
136
  var prev = cur.ch == 0 ? " " : cm.getRange(Pos(cur.line, cur.ch - 1), cur)
137
  if (!CodeMirror.isWordChar(next) && prev != ch && !CodeMirror.isWordChar(prev)) curType = "both";
138
  else return CodeMirror.Pass;
139
- } else if (opening && (cm.getLine(cur.line).length == cur.ch ||
140
- isClosingBracket(next, pairs) ||
141
- /\s/.test(next))) {
142
  curType = "both";
143
  } else {
144
  return CodeMirror.Pass;
@@ -175,11 +177,6 @@
175
  });
176
  }
177
 
178
- function isClosingBracket(ch, pairs) {
179
- var pos = pairs.lastIndexOf(ch);
180
- return pos > -1 && pos % 2 == 1;
181
- }
182
-
183
  function charsAround(cm, pos) {
184
  var str = cm.getRange(Pos(pos.line, pos.ch - 1),
185
  Pos(pos.line, pos.ch + 1));
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
11
  })(function(CodeMirror) {
12
  var defaults = {
13
  pairs: "()[]{}''\"\"",
14
+ closeBefore: ")]}'\":;>",
15
  triples: "",
16
  explode: "[]{}"
17
  };
110
  var pairs = getOption(conf, "pairs");
111
  var pos = pairs.indexOf(ch);
112
  if (pos == -1) return CodeMirror.Pass;
113
+
114
+ var closeBefore = getOption(conf,"closeBefore");
115
+
116
  var triples = getOption(conf, "triples");
117
 
118
  var identical = pairs.charAt(pos + 1) == ch;
140
  var prev = cur.ch == 0 ? " " : cm.getRange(Pos(cur.line, cur.ch - 1), cur)
141
  if (!CodeMirror.isWordChar(next) && prev != ch && !CodeMirror.isWordChar(prev)) curType = "both";
142
  else return CodeMirror.Pass;
143
+ } else if (opening && (next.length === 0 || /\s/.test(next) || closeBefore.indexOf(next) > -1)) {
 
 
144
  curType = "both";
145
  } else {
146
  return CodeMirror.Pass;
177
  });
178
  }
179
 
 
 
 
 
 
180
  function charsAround(cm, pos) {
181
  var str = cm.getRange(Pos(pos.line, pos.ch - 1),
182
  Pos(pos.line, pos.ch + 1));
assets/vendor/codemirror/addon/edit/closetag.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  /**
5
  * Tag-closer extension for CodeMirror.
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  /**
5
  * Tag-closer extension for CodeMirror.
assets/vendor/codemirror/addon/edit/continuelist.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
@@ -20,7 +20,17 @@
20
  var ranges = cm.listSelections(), replacements = [];
21
  for (var i = 0; i < ranges.length; i++) {
22
  var pos = ranges[i].head;
 
 
23
  var eolState = cm.getStateAfter(pos.line);
 
 
 
 
 
 
 
 
24
  var inList = eolState.list !== false;
25
  var inQuote = eolState.quote !== 0;
26
 
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
20
  var ranges = cm.listSelections(), replacements = [];
21
  for (var i = 0; i < ranges.length; i++) {
22
  var pos = ranges[i].head;
23
+
24
+ // If we're not in Markdown mode, fall back to normal newlineAndIndent
25
  var eolState = cm.getStateAfter(pos.line);
26
+ var inner = cm.getMode().innerMode(eolState);
27
+ if (inner.mode.name !== "markdown") {
28
+ cm.execCommand("newlineAndIndent");
29
+ return;
30
+ } else {
31
+ eolState = inner.state;
32
+ }
33
+
34
  var inList = eolState.list !== false;
35
  var inQuote = eolState.quote !== 0;
36
 
assets/vendor/codemirror/addon/edit/matchbrackets.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
@@ -14,20 +14,25 @@
14
 
15
  var Pos = CodeMirror.Pos;
16
 
17
- var matching = {"(": ")>", ")": "(<", "[": "]>", "]": "[<", "{": "}>", "}": "{<"};
 
 
 
 
18
 
19
  function findMatchingBracket(cm, where, config) {
20
  var line = cm.getLineHandle(where.line), pos = where.ch - 1;
21
  var afterCursor = config && config.afterCursor
22
  if (afterCursor == null)
23
  afterCursor = /(^| )cm-fat-cursor($| )/.test(cm.getWrapperElement().className)
 
24
 
25
  // A cursor is defined as between two characters, but in in vim command mode
26
  // (i.e. not insert mode), the cursor is visually represented as a
27
  // highlighted box on top of the 2nd character. Otherwise, we allow matches
28
  // from before or after the cursor.
29
- var match = (!afterCursor && pos >= 0 && matching[line.text.charAt(pos)]) ||
30
- matching[line.text.charAt(++pos)];
31
  if (!match) return null;
32
  var dir = match.charAt(1) == ">" ? 1 : -1;
33
  if (config && config.strict && (dir > 0) != (pos == where.ch)) return null;
@@ -51,7 +56,7 @@
51
  var maxScanLines = (config && config.maxScanLines) || 1000;
52
 
53
  var stack = [];
54
- var re = config && config.bracketRegex ? config.bracketRegex : /[(){}[\]]/;
55
  var lineEnd = dir > 0 ? Math.min(where.line + maxScanLines, cm.lastLine() + 1)
56
  : Math.max(cm.firstLine() - 1, where.line - maxScanLines);
57
  for (var lineNo = where.line; lineNo != lineEnd; lineNo += dir) {
@@ -64,7 +69,7 @@
64
  var ch = line.charAt(pos);
65
  if (re.test(ch) && (style === undefined || cm.getTokenTypeAt(Pos(lineNo, pos + 1)) == style)) {
66
  var match = matching[ch];
67
- if ((match.charAt(1) == ">") == (dir > 0)) stack.push(ch);
68
  else if (!stack.length) return {pos: Pos(lineNo, pos), ch: ch};
69
  else stack.pop();
70
  }
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
14
 
15
  var Pos = CodeMirror.Pos;
16
 
17
+ var matching = {"(": ")>", ")": "(<", "[": "]>", "]": "[<", "{": "}>", "}": "{<", "<": ">>", ">": "<<"};
18
+
19
+ function bracketRegex(config) {
20
+ return config && config.bracketRegex || /[(){}[\]]/
21
+ }
22
 
23
  function findMatchingBracket(cm, where, config) {
24
  var line = cm.getLineHandle(where.line), pos = where.ch - 1;
25
  var afterCursor = config && config.afterCursor
26
  if (afterCursor == null)
27
  afterCursor = /(^| )cm-fat-cursor($| )/.test(cm.getWrapperElement().className)
28
+ var re = bracketRegex(config)
29
 
30
  // A cursor is defined as between two characters, but in in vim command mode
31
  // (i.e. not insert mode), the cursor is visually represented as a
32
  // highlighted box on top of the 2nd character. Otherwise, we allow matches
33
  // from before or after the cursor.
34
+ var match = (!afterCursor && pos >= 0 && re.test(line.text.charAt(pos)) && matching[line.text.charAt(pos)]) ||
35
+ re.test(line.text.charAt(pos + 1)) && matching[line.text.charAt(++pos)];
36
  if (!match) return null;
37
  var dir = match.charAt(1) == ">" ? 1 : -1;
38
  if (config && config.strict && (dir > 0) != (pos == where.ch)) return null;
56
  var maxScanLines = (config && config.maxScanLines) || 1000;
57
 
58
  var stack = [];
59
+ var re = bracketRegex(config)
60
  var lineEnd = dir > 0 ? Math.min(where.line + maxScanLines, cm.lastLine() + 1)
61
  : Math.max(cm.firstLine() - 1, where.line - maxScanLines);
62
  for (var lineNo = where.line; lineNo != lineEnd; lineNo += dir) {
69
  var ch = line.charAt(pos);
70
  if (re.test(ch) && (style === undefined || cm.getTokenTypeAt(Pos(lineNo, pos + 1)) == style)) {
71
  var match = matching[ch];
72
+ if (match && (match.charAt(1) == ">") == (dir > 0)) stack.push(ch);
73
  else if (!stack.length) return {pos: Pos(lineNo, pos), ch: ch};
74
  else stack.pop();
75
  }
assets/vendor/codemirror/addon/edit/matchtags.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
assets/vendor/codemirror/addon/edit/trailingspace.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
assets/vendor/codemirror/addon/fold/brace-fold.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
@@ -54,7 +54,7 @@ CodeMirror.registerHelper("fold", "brace", function(cm, start) {
54
  ++pos;
55
  }
56
  }
57
- if (end == null || line == end && endCh == startCh) return;
58
  return {from: CodeMirror.Pos(line, startCh),
59
  to: CodeMirror.Pos(end, endCh)};
60
  });
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
54
  ++pos;
55
  }
56
  }
57
+ if (end == null || line == end) return;
58
  return {from: CodeMirror.Pos(line, startCh),
59
  to: CodeMirror.Pos(end, endCh)};
60
  });
assets/vendor/codemirror/addon/fold/comment-fold.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
assets/vendor/codemirror/addon/fold/foldcode.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
assets/vendor/codemirror/addon/fold/foldgutter.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
assets/vendor/codemirror/addon/fold/indent-fold.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
assets/vendor/codemirror/addon/fold/markdown-fold.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
assets/vendor/codemirror/addon/fold/xml-fold.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
assets/vendor/codemirror/addon/hint/anyword-hint.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
assets/vendor/codemirror/addon/hint/css-hint.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
assets/vendor/codemirror/addon/hint/html-hint.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
@@ -322,6 +322,8 @@
322
  itemtype: null,
323
  lang: ["en", "es"],
324
  spellcheck: ["true", "false"],
 
 
325
  style: null,
326
  tabindex: ["1", "2", "3", "4", "5", "6", "7", "8", "9"],
327
  title: null,
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
322
  itemtype: null,
323
  lang: ["en", "es"],
324
  spellcheck: ["true", "false"],
325
+ autocorrect: ["true", "false"],
326
+ autocapitalize: ["true", "false"],
327
  style: null,
328
  tabindex: ["1", "2", "3", "4", "5", "6", "7", "8", "9"],
329
  title: null,
assets/vendor/codemirror/addon/hint/javascript-hint.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
assets/vendor/codemirror/addon/hint/show-hint.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
@@ -46,6 +46,10 @@
46
  completion.update(true);
47
  });
48
 
 
 
 
 
49
  function Completion(cm, options) {
50
  this.cm = cm;
51
  this.options = options;
@@ -98,7 +102,7 @@
98
  var pos = this.cm.getCursor(), line = this.cm.getLine(pos.line);
99
  if (pos.line != this.startPos.line || line.length - pos.ch != this.startLen - this.startPos.ch ||
100
  pos.ch < this.startPos.ch || this.cm.somethingSelected() ||
101
- (pos.ch && this.options.closeCharacters.test(line.charAt(pos.ch - 1)))) {
102
  this.close();
103
  } else {
104
  var self = this;
@@ -163,6 +167,14 @@
163
  Tab: handle.pick,
164
  Esc: handle.close
165
  };
 
 
 
 
 
 
 
 
166
  var custom = completion.options.customKeys;
167
  var ourMap = custom ? {} : baseMap;
168
  function addBinding(key, val) {
@@ -198,19 +210,22 @@
198
  this.data = data;
199
  this.picked = false;
200
  var widget = this, cm = completion.cm;
 
 
201
 
202
- var hints = this.hints = document.createElement("ul");
203
- hints.className = "CodeMirror-hints";
 
204
  this.selectedHint = data.selectedHint || 0;
205
 
206
  var completions = data.list;
207
  for (var i = 0; i < completions.length; ++i) {
208
- var elt = hints.appendChild(document.createElement("li")), cur = completions[i];
209
  var className = HINT_ELEMENT_CLASS + (i != this.selectedHint ? "" : " " + ACTIVE_HINT_ELEMENT_CLASS);
210
  if (cur.className != null) className = cur.className + " " + className;
211
  elt.className = className;
212
  if (cur.render) cur.render(elt, data, cur);
213
- else elt.appendChild(document.createTextNode(cur.displayText || getText(cur)));
214
  elt.hintId = i;
215
  }
216
 
@@ -219,9 +234,9 @@
219
  hints.style.left = left + "px";
220
  hints.style.top = top + "px";
221
  // If we're at the edge of the screen, then we want the menu to appear on the left of the cursor.
222
- var winW = window.innerWidth || Math.max(document.body.offsetWidth, document.documentElement.offsetWidth);
223
- var winH = window.innerHeight || Math.max(document.body.offsetHeight, document.documentElement.offsetHeight);
224
- (completion.options.container || document.body).appendChild(hints);
225
  var box = hints.getBoundingClientRect(), overlapY = box.bottom - winH;
226
  var scrolls = hints.scrollHeight > hints.clientHeight + 1
227
  var startScroll = cm.getScrollInfo();
@@ -272,7 +287,7 @@
272
  cm.on("scroll", this.onScroll = function() {
273
  var curScroll = cm.getScrollInfo(), editor = cm.getWrapperElement().getBoundingClientRect();
274
  var newTop = top + startScroll.top - curScroll.top;
275
- var point = newTop - (window.pageYOffset || (document.documentElement || document.body).scrollTop);
276
  if (!below) point += hints.offsetHeight;
277
  if (point <= editor.top || point >= editor.bottom) return completion.close();
278
  hints.style.top = newTop + "px";
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
46
  completion.update(true);
47
  });
48
 
49
+ CodeMirror.defineExtension("closeHint", function() {
50
+ if (this.state.completionActive) this.state.completionActive.close()
51
+ })
52
+
53
  function Completion(cm, options) {
54
  this.cm = cm;
55
  this.options = options;
102
  var pos = this.cm.getCursor(), line = this.cm.getLine(pos.line);
103
  if (pos.line != this.startPos.line || line.length - pos.ch != this.startLen - this.startPos.ch ||
104
  pos.ch < this.startPos.ch || this.cm.somethingSelected() ||
105
+ (!pos.ch || this.options.closeCharacters.test(line.charAt(pos.ch - 1)))) {
106
  this.close();
107
  } else {
108
  var self = this;
167
  Tab: handle.pick,
168
  Esc: handle.close
169
  };
170
+
171
+ var mac = /Mac/.test(navigator.platform);
172
+
173
+ if (mac) {
174
+ baseMap["Ctrl-P"] = function() {handle.moveFocus(-1);};
175
+ baseMap["Ctrl-N"] = function() {handle.moveFocus(1);};
176
+ }
177
+
178
  var custom = completion.options.customKeys;
179
  var ourMap = custom ? {} : baseMap;
180
  function addBinding(key, val) {
210
  this.data = data;
211
  this.picked = false;
212
  var widget = this, cm = completion.cm;
213
+ var ownerDocument = cm.getInputField().ownerDocument;
214
+ var parentWindow = ownerDocument.defaultView || ownerDocument.parentWindow;
215
 
216
+ var hints = this.hints = ownerDocument.createElement("ul");
217
+ var theme = completion.cm.options.theme;
218
+ hints.className = "CodeMirror-hints " + theme;
219
  this.selectedHint = data.selectedHint || 0;
220
 
221
  var completions = data.list;
222
  for (var i = 0; i < completions.length; ++i) {
223
+ var elt = hints.appendChild(ownerDocument.createElement("li")), cur = completions[i];
224
  var className = HINT_ELEMENT_CLASS + (i != this.selectedHint ? "" : " " + ACTIVE_HINT_ELEMENT_CLASS);
225
  if (cur.className != null) className = cur.className + " " + className;
226
  elt.className = className;
227
  if (cur.render) cur.render(elt, data, cur);
228
+ else elt.appendChild(ownerDocument.createTextNode(cur.displayText || getText(cur)));
229
  elt.hintId = i;
230
  }
231
 
234
  hints.style.left = left + "px";
235
  hints.style.top = top + "px";
236
  // If we're at the edge of the screen, then we want the menu to appear on the left of the cursor.
237
+ var winW = parentWindow.innerWidth || Math.max(ownerDocument.body.offsetWidth, ownerDocument.documentElement.offsetWidth);
238
+ var winH = parentWindow.innerHeight || Math.max(ownerDocument.body.offsetHeight, ownerDocument.documentElement.offsetHeight);
239
+ (completion.options.container || ownerDocument.body).appendChild(hints);
240
  var box = hints.getBoundingClientRect(), overlapY = box.bottom - winH;
241
  var scrolls = hints.scrollHeight > hints.clientHeight + 1
242
  var startScroll = cm.getScrollInfo();
287
  cm.on("scroll", this.onScroll = function() {
288
  var curScroll = cm.getScrollInfo(), editor = cm.getWrapperElement().getBoundingClientRect();
289
  var newTop = top + startScroll.top - curScroll.top;
290
+ var point = newTop - (parentWindow.pageYOffset || (ownerDocument.documentElement || ownerDocument.body).scrollTop);
291
  if (!below) point += hints.offsetHeight;
292
  if (point <= editor.top || point >= editor.bottom) return completion.close();
293
  hints.style.top = newTop + "px";
assets/vendor/codemirror/addon/hint/sql-hint.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
@@ -275,24 +275,29 @@
275
  if (search.charAt(0) == "." || search.charAt(0) == identifierQuote) {
276
  start = nameCompletion(cur, token, result, editor);
277
  } else {
278
- addMatches(result, search, defaultTable, function(w) {return {text:w, className: "CodeMirror-hint-table CodeMirror-hint-default-table"};});
279
- addMatches(
280
- result,
281
- search,
282
- tables,
283
- function(w) {
284
- if (typeof w === 'object') {
285
- w.className = "CodeMirror-hint-table";
286
- } else {
287
- w = {text: w, className: "CodeMirror-hint-table"};
288
- }
289
-
290
- return w;
291
- }
292
- );
293
- if (!disableKeywords)
294
- addMatches(result, search, keywords, function(w) {return {text: w.toUpperCase(), className: "CodeMirror-hint-keyword"};});
295
- }
 
 
 
 
 
296
 
297
  return {list: result, from: Pos(cur.line, start), to: Pos(cur.line, end)};
298
  });
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
275
  if (search.charAt(0) == "." || search.charAt(0) == identifierQuote) {
276
  start = nameCompletion(cur, token, result, editor);
277
  } else {
278
+ var objectOrClass = function(w, className) {
279
+ if (typeof w === "object") {
280
+ w.className = className;
281
+ } else {
282
+ w = { text: w, className: className };
283
+ }
284
+ return w;
285
+ };
286
+ addMatches(result, search, defaultTable, function(w) {
287
+ return objectOrClass(w, "CodeMirror-hint-table CodeMirror-hint-default-table");
288
+ });
289
+ addMatches(
290
+ result,
291
+ search,
292
+ tables, function(w) {
293
+ return objectOrClass(w, "CodeMirror-hint-table");
294
+ }
295
+ );
296
+ if (!disableKeywords)
297
+ addMatches(result, search, keywords, function(w) {
298
+ return objectOrClass(w.toUpperCase(), "CodeMirror-hint-keyword");
299
+ });
300
+ }
301
 
302
  return {list: result, from: Pos(cur.line, start), to: Pos(cur.line, end)};
303
  });
assets/vendor/codemirror/addon/hint/xml-hint.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
@@ -13,9 +13,15 @@
13
 
14
  var Pos = CodeMirror.Pos;
15
 
 
 
 
 
 
16
  function getHints(cm, options) {
17
  var tags = options && options.schemaInfo;
18
  var quote = (options && options.quoteChar) || '"';
 
19
  if (!tags) return;
20
  var cur = cm.getCursor(), token = cm.getTokenAt(cur);
21
  if (token.end > cur.ch) {
@@ -45,14 +51,14 @@
45
  var cx = inner.state.context, curTag = cx && tags[cx.tagName];
46
  var childList = cx ? curTag && curTag.children : tags["!top"];
47
  if (childList && tagType != "close") {
48
- for (var i = 0; i < childList.length; ++i) if (!prefix || childList[i].lastIndexOf(prefix, 0) == 0)
49
  result.push("<" + childList[i]);
50
  } else if (tagType != "close") {
51
  for (var name in tags)
52
- if (tags.hasOwnProperty(name) && name != "!top" && name != "!attrs" && (!prefix || name.lastIndexOf(prefix, 0) == 0))
53
  result.push("<" + name);
54
  }
55
- if (cx && (!prefix || tagType == "close" && cx.tagName.lastIndexOf(prefix, 0) == 0))
56
  result.push("</" + cx.tagName + ">");
57
  } else {
58
  // Attribute completion
@@ -88,14 +94,14 @@
88
  }
89
  replaceToken = true;
90
  }
91
- for (var i = 0; i < atValues.length; ++i) if (!prefix || atValues[i].lastIndexOf(prefix, 0) == 0)
92
  result.push(quote + atValues[i] + quote);
93
  } else { // An attribute name
94
  if (token.type == "attribute") {
95
  prefix = token.string;
96
  replaceToken = true;
97
  }
98
- for (var attr in attrs) if (attrs.hasOwnProperty(attr) && (!prefix || attr.lastIndexOf(prefix, 0) == 0))
99
  result.push(attr);
100
  }
101
  }
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
13
 
14
  var Pos = CodeMirror.Pos;
15
 
16
+ function matches(hint, typed, matchInMiddle) {
17
+ if (matchInMiddle) return hint.indexOf(typed) >= 0;
18
+ else return hint.lastIndexOf(typed, 0) == 0;
19
+ }
20
+
21
  function getHints(cm, options) {
22
  var tags = options && options.schemaInfo;
23
  var quote = (options && options.quoteChar) || '"';
24
+ var matchInMiddle = options && options.matchInMiddle;
25
  if (!tags) return;
26
  var cur = cm.getCursor(), token = cm.getTokenAt(cur);
27
  if (token.end > cur.ch) {
51
  var cx = inner.state.context, curTag = cx && tags[cx.tagName];
52
  var childList = cx ? curTag && curTag.children : tags["!top"];
53
  if (childList && tagType != "close") {
54
+ for (var i = 0; i < childList.length; ++i) if (!prefix || matches(childList[i], prefix, matchInMiddle))
55
  result.push("<" + childList[i]);
56
  } else if (tagType != "close") {
57
  for (var name in tags)
58
+ if (tags.hasOwnProperty(name) && name != "!top" && name != "!attrs" && (!prefix || matches(name, prefix, matchInMiddle)))
59
  result.push("<" + name);
60
  }
61
+ if (cx && (!prefix || tagType == "close" && matches(cx.tagName, prefix, matchInMiddle)))
62
  result.push("</" + cx.tagName + ">");
63
  } else {
64
  // Attribute completion
94
  }
95
  replaceToken = true;
96
  }
97
+ for (var i = 0; i < atValues.length; ++i) if (!prefix || matches(atValues[i], prefix, matchInMiddle))
98
  result.push(quote + atValues[i] + quote);
99
  } else { // An attribute name
100
  if (token.type == "attribute") {
101
  prefix = token.string;
102
  replaceToken = true;
103
  }
104
+ for (var attr in attrs) if (attrs.hasOwnProperty(attr) && (!prefix || matches(attr, prefix, matchInMiddle)))
105
  result.push(attr);
106
  }
107
  }
assets/vendor/codemirror/addon/lint/coffeescript-lint.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  // Depends on coffeelint.js from http://www.coffeelint.org/js/coffeelint.js
5
 
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  // Depends on coffeelint.js from http://www.coffeelint.org/js/coffeelint.js
5
 
assets/vendor/codemirror/addon/lint/css-lint.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  // Depends on csslint.js from https://github.com/stubbornella/csslint
5
 
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  // Depends on csslint.js from https://github.com/stubbornella/csslint
5
 
assets/vendor/codemirror/addon/lint/html-lint.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  // Depends on htmlhint.js from http://htmlhint.com/js/htmlhint.js
5
 
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  // Depends on htmlhint.js from http://htmlhint.com/js/htmlhint.js
5
 
assets/vendor/codemirror/addon/lint/javascript-lint.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
assets/vendor/codemirror/addon/lint/json-lint.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  // Depends on jsonlint.js from https://github.com/zaach/jsonlint
5
 
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  // Depends on jsonlint.js from https://github.com/zaach/jsonlint
5
 
assets/vendor/codemirror/addon/lint/lint.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
assets/vendor/codemirror/addon/lint/yaml-lint.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
@@ -23,7 +23,7 @@ CodeMirror.registerHelper("lint", "yaml", function(text) {
23
  }
24
  return found;
25
  }
26
- try { jsyaml.load(text); }
27
  catch(e) {
28
  var loc = e.mark,
29
  // js-yaml YAMLException doesn't always provide an accurate lineno
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
23
  }
24
  return found;
25
  }
26
+ try { jsyaml.loadAll(text); }
27
  catch(e) {
28
  var loc = e.mark,
29
  // js-yaml YAMLException doesn't always provide an accurate lineno
assets/vendor/codemirror/addon/scroll/annotatescrollbar.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
assets/vendor/codemirror/addon/scroll/scrollpastend.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
assets/vendor/codemirror/addon/scroll/simplescrollbars.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
assets/vendor/codemirror/addon/search/jump-to-line.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  // Defines jumpToLine command. Uses dialog.js if present.
5
 
@@ -18,8 +18,9 @@
18
  else f(prompt(shortText, deflt));
19
  }
20
 
21
- var jumpDialog =
22
- 'Jump to line: <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">(Use line:column or scroll% syntax)</span>';
 
23
 
24
  function interpretLine(cm, string) {
25
  var num = Number(string)
@@ -29,7 +30,7 @@
29
 
30
  CodeMirror.commands.jumpToLine = function(cm) {
31
  var cur = cm.getCursor();
32
- dialog(cm, jumpDialog, "Jump to line:", (cur.line + 1) + ":" + cur.ch, function(posStr) {
33
  if (!posStr) return;
34
 
35
  var match;
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  // Defines jumpToLine command. Uses dialog.js if present.
5
 
18
  else f(prompt(shortText, deflt));
19
  }
20
 
21
+ function getJumpDialog(cm) {
22
+ return cm.phrase("Jump to line:") + ' <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">' + cm.phrase("(Use line:column or scroll% syntax)") + '</span>';
23
+ }
24
 
25
  function interpretLine(cm, string) {
26
  var num = Number(string)
30
 
31
  CodeMirror.commands.jumpToLine = function(cm) {
32
  var cur = cm.getCursor();
33
+ dialog(cm, getJumpDialog(cm), cm.phrase("Jump to line:"), (cur.line + 1) + ":" + cur.ch, function(posStr) {
34
  if (!posStr) return;
35
 
36
  var match;
assets/vendor/codemirror/addon/search/match-highlighter.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  // Highlighting text that matches the selection
5
  //
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  // Highlighting text that matches the selection
5
  //
assets/vendor/codemirror/addon/search/matchesonscrollbar.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
assets/vendor/codemirror/addon/search/search.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  // Define search commands. Depends on dialog.js or another
5
  // implementation of the openDialog method.
@@ -98,9 +98,6 @@
98
  return query;
99
  }
100
 
101
- var queryDialog =
102
- '<span class="CodeMirror-search-label">Search:</span> <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">(Use /re/ syntax for regexp search)</span>';
103
-
104
  function startSearch(cm, state, query) {
105
  state.queryText = query;
106
  state.query = parseQuery(query);
@@ -136,7 +133,7 @@
136
  (hiding = dialog).style.opacity = .4
137
  })
138
  };
139
- persistentDialog(cm, queryDialog, q, searchNext, function(event, query) {
140
  var keyName = CodeMirror.keyName(event)
141
  var extra = cm.getOption('extraKeys'), cmd = (extra && extra[keyName]) || CodeMirror.keyMap[cm.getOption("keyMap")][keyName]
142
  if (cmd == "findNext" || cmd == "findPrev" ||
@@ -154,7 +151,7 @@
154
  findNext(cm, rev);
155
  }
156
  } else {
157
- dialog(cm, queryDialog, "Search for:", q, function(query) {
158
  if (query && !state.query) cm.operation(function() {
159
  startSearch(cm, state, query);
160
  state.posFrom = state.posTo = cm.getCursor();
@@ -186,10 +183,19 @@
186
  if (state.annotate) { state.annotate.clear(); state.annotate = null; }
187
  });}
188
 
189
- var replaceQueryDialog =
190
- ' <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">(Use /re/ syntax for regexp search)</span>';
191
- var replacementQueryDialog = '<span class="CodeMirror-search-label">With:</span> <input type="text" style="width: 10em" class="CodeMirror-search-field"/>';
192
- var doReplaceConfirm = '<span class="CodeMirror-search-label">Replace?</span> <button>Yes</button> <button>No</button> <button>All</button> <button>Stop</button>';
 
 
 
 
 
 
 
 
 
193
 
194
  function replaceAll(cm, query, text) {
195
  cm.operation(function() {
@@ -205,11 +211,11 @@
205
  function replace(cm, all) {
206
  if (cm.getOption("readOnly")) return;
207
  var query = cm.getSelection() || getSearchState(cm).lastQuery;
208
- var dialogText = '<span class="CodeMirror-search-label">' + (all ? 'Replace all:' : 'Replace:') + '</span>';
209
- dialog(cm, dialogText + replaceQueryDialog, dialogText, query, function(query) {
210
  if (!query) return;
211
  query = parseQuery(query);
212
- dialog(cm, replacementQueryDialog, "Replace with:", "", function(text) {
213
  text = parseString(text)
214
  if (all) {
215
  replaceAll(cm, query, text)
@@ -225,7 +231,7 @@
225
  }
226
  cm.setSelection(cursor.from(), cursor.to());
227
  cm.scrollIntoView({from: cursor.from(), to: cursor.to()});
228
- confirmDialog(cm, doReplaceConfirm, "Replace?",
229
  [function() {doReplace(match);}, advance,
230
  function() {replaceAll(cm, query, text)}]);
231
  };
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  // Define search commands. Depends on dialog.js or another
5
  // implementation of the openDialog method.
98
  return query;
99
  }
100
 
 
 
 
101
  function startSearch(cm, state, query) {
102
  state.queryText = query;
103
  state.query = parseQuery(query);
133
  (hiding = dialog).style.opacity = .4
134
  })
135
  };
136
+ persistentDialog(cm, getQueryDialog(cm), q, searchNext, function(event, query) {
137
  var keyName = CodeMirror.keyName(event)
138
  var extra = cm.getOption('extraKeys'), cmd = (extra && extra[keyName]) || CodeMirror.keyMap[cm.getOption("keyMap")][keyName]
139
  if (cmd == "findNext" || cmd == "findPrev" ||
151
  findNext(cm, rev);
152
  }
153
  } else {
154
+ dialog(cm, getQueryDialog(cm), "Search for:", q, function(query) {
155
  if (query && !state.query) cm.operation(function() {
156
  startSearch(cm, state, query);
157
  state.posFrom = state.posTo = cm.getCursor();
183
  if (state.annotate) { state.annotate.clear(); state.annotate = null; }
184
  });}
185
 
186
+
187
+ function getQueryDialog(cm) {
188
+ return '<span class="CodeMirror-search-label">' + cm.phrase("Search:") + '</span> <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">' + cm.phrase("(Use /re/ syntax for regexp search)") + '</span>';
189
+ }
190
+ function getReplaceQueryDialog(cm) {
191
+ return ' <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">' + cm.phrase("(Use /re/ syntax for regexp search)") + '</span>';
192
+ }
193
+ function getReplacementQueryDialog(cm) {
194
+ return '<span class="CodeMirror-search-label">' + cm.phrase("With:") + '</span> <input type="text" style="width: 10em" class="CodeMirror-search-field"/>';
195
+ }
196
+ function getDoReplaceConfirm(cm) {
197
+ return '<span class="CodeMirror-search-label">' + cm.phrase("Replace?") + '</span> <button>' + cm.phrase("Yes") + '</button> <button>' + cm.phrase("No") + '</button> <button>' + cm.phrase("All") + '</button> <button>' + cm.phrase("Stop") + '</button> ';
198
+ }
199
 
200
  function replaceAll(cm, query, text) {
201
  cm.operation(function() {
211
  function replace(cm, all) {
212
  if (cm.getOption("readOnly")) return;
213
  var query = cm.getSelection() || getSearchState(cm).lastQuery;
214
+ var dialogText = '<span class="CodeMirror-search-label">' + (all ? cm.phrase("Replace all:") : cm.phrase("Replace:")) + '</span>';
215
+ dialog(cm, dialogText + getReplaceQueryDialog(cm), dialogText, query, function(query) {
216
  if (!query) return;
217
  query = parseQuery(query);
218
+ dialog(cm, getReplacementQueryDialog(cm), cm.phrase("Replace with:"), "", function(text) {
219
  text = parseString(text)
220
  if (all) {
221
  replaceAll(cm, query, text)
231
  }
232
  cm.setSelection(cursor.from(), cursor.to());
233
  cm.scrollIntoView({from: cursor.from(), to: cursor.to()});
234
+ confirmDialog(cm, getDoReplaceConfirm(cm), cm.phrase("Replace?"),
235
  [function() {doReplace(match);}, advance,
236
  function() {replaceAll(cm, query, text)}]);
237
  };
assets/vendor/codemirror/addon/search/searchcursor.js CHANGED
@@ -1,5 +1,5 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
  (function(mod) {
5
  if (typeof exports == "object" && typeof module == "object") // CommonJS
assets/vendor/codemirror/codemirror.js CHANGED
@@ -1,7 +1,7 @@
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
- // Distributed under an MIT license: http://codemirror.net/LICENSE
3
 
4
- // This is CodeMirror (http://codemirror.net), a code editor
5
  // implemented in JavaScript on top of the browser's DOM.
6
  //
7
  // You can find some technical background for some of the code below
@@ -13,9673 +13,9728 @@
13
  (global.CodeMirror = factory());
14
  }(this, (function () { 'use strict';
15
 
16
- // Kludges for bugs and behavior differences that can't be feature
17
- // detected are enabled based on userAgent etc sniffing.
18
- var userAgent = navigator.userAgent
19
- var platform = navigator.platform
20
-
21
- var gecko = /gecko\/\d/i.test(userAgent)
22
- var ie_upto10 = /MSIE \d/.test(userAgent)
23
- var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent)
24
- var edge = /Edge\/(\d+)/.exec(userAgent)
25
- var ie = ie_upto10 || ie_11up || edge
26
- var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : +(edge || ie_11up)[1])
27
- var webkit = !edge && /WebKit\//.test(userAgent)
28
- var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent)
29
- var chrome = !edge && /Chrome\//.test(userAgent)
30
- var presto = /Opera\//.test(userAgent)
31
- var safari = /Apple Computer/.test(navigator.vendor)
32
- var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent)
33
- var phantom = /PhantomJS/.test(userAgent)
34
-
35
- var ios = !edge && /AppleWebKit/.test(userAgent) && /Mobile\/\w+/.test(userAgent)
36
- var android = /Android/.test(userAgent)
37
- // This is woefully incomplete. Suggestions for alternative methods welcome.
38
- var mobile = ios || android || /webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent)
39
- var mac = ios || /Mac/.test(platform)
40
- var chromeOS = /\bCrOS\b/.test(userAgent)
41
- var windows = /win/i.test(platform)
42
-
43
- var presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/)
44
- if (presto_version) { presto_version = Number(presto_version[1]) }
45
- if (presto_version && presto_version >= 15) { presto = false; webkit = true }
46
- // Some browsers use the wrong event properties to signal cmd/ctrl on OS X
47
- var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11))
48
- var captureRightClick = gecko || (ie && ie_version >= 9)
49
-
50
- function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*") }
51
-
52
- var rmClass = function(node, cls) {
53
- var current = node.className
54
- var match = classTest(cls).exec(current)
55
- if (match) {
56
- var after = current.slice(match.index + match[0].length)
57
- node.className = current.slice(0, match.index) + (after ? match[1] + after : "")
58
- }
59
- }
60
-
61
- function removeChildren(e) {
62
- for (var count = e.childNodes.length; count > 0; --count)
63
- { e.removeChild(e.firstChild) }
64
- return e
65
- }
66
-
67
- function removeChildrenAndAdd(parent, e) {
68
- return removeChildren(parent).appendChild(e)
69
- }
70
-
71
- function elt(tag, content, className, style) {
72
- var e = document.createElement(tag)
73
- if (className) { e.className = className }
74
- if (style) { e.style.cssText = style }
75
- if (typeof content == "string") { e.appendChild(document.createTextNode(content)) }
76
- else if (content) { for (var i = 0; i < content.length; ++i) { e.appendChild(content[i]) } }
77
- return e
78
- }
79
- // wrapper for elt, which removes the elt from the accessibility tree
80
- function eltP(tag, content, className, style) {
81
- var e = elt(tag, content, className, style)
82
- e.setAttribute("role", "presentation")
83
- return e
84
- }
85
-
86
- var range
87
- if (document.createRange) { range = function(node, start, end, endNode) {
88
- var r = document.createRange()
89
- r.setEnd(endNode || node, end)
90
- r.setStart(node, start)
91
- return r
92
- } }
93
- else { range = function(node, start, end) {
94
- var r = document.body.createTextRange()
95
- try { r.moveToElementText(node.parentNode) }
96
- catch(e) { return r }
97
- r.collapse(true)
98
- r.moveEnd("character", end)
99
- r.moveStart("character", start)
100
- return r
101
- } }
102
-
103
- function contains(parent, child) {
104
- if (child.nodeType == 3) // Android browser always returns false when child is a textnode
105
- { child = child.parentNode }
106
- if (parent.contains)
107
- { return parent.contains(child) }
108
- do {
109
- if (child.nodeType == 11) { child = child.host }
110
- if (child == parent) { return true }
111
- } while (child = child.parentNode)
112
- }
113
-
114
- function activeElt() {
115
- // IE and Edge may throw an "Unspecified Error" when accessing document.activeElement.
116
- // IE < 10 will throw when accessed while the page is loading or in an iframe.
117
- // IE > 9 and Edge will throw when accessed in an iframe if document.body is unavailable.
118
- var activeElement
119
- try {
120
- activeElement = document.activeElement
121
- } catch(e) {
122
- activeElement = document.body || null
123
- }
124
- while (activeElement && activeElement.shadowRoot && activeElement.shadowRoot.activeElement)
125
- { activeElement = activeElement.shadowRoot.activeElement }
126
- return activeElement
127
- }
128
-
129
- function addClass(node, cls) {
130
- var current = node.className
131
- if (!classTest(cls).test(current)) { node.className += (current ? " " : "") + cls }
132
- }
133
- function joinClasses(a, b) {
134
- var as = a.split(" ")
135
- for (var i = 0; i < as.length; i++)
136
- { if (as[i] && !classTest(as[i]).test(b)) { b += " " + as[i] } }
137
- return b
138
- }
139
-
140
- var selectInput = function(node) { node.select() }
141
- if (ios) // Mobile Safari apparently has a bug where select() is broken.
142
- { selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length } }
143
- else if (ie) // Suppress mysterious IE10 errors
144
- { selectInput = function(node) { try { node.select() } catch(_e) {} } }
145
-
146
- function bind(f) {
147
- var args = Array.prototype.slice.call(arguments, 1)
148
- return function(){return f.apply(null, args)}
149
- }
150
-
151
- function copyObj(obj, target, overwrite) {
152
- if (!target) { target = {} }
153
- for (var prop in obj)
154
- { if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
155
- { target[prop] = obj[prop] } }
156
- return target
157
- }
158
-
159
- // Counts the column offset in a string, taking tabs into account.
160
- // Used mostly to find indentation.
161
- function countColumn(string, end, tabSize, startIndex, startValue) {
162
- if (end == null) {
163
- end = string.search(/[^\s\u00a0]/)
164
- if (end == -1) { end = string.length }
165
- }
166
- for (var i = startIndex || 0, n = startValue || 0;;) {
167
- var nextTab = string.indexOf("\t", i)
168
- if (nextTab < 0 || nextTab >= end)
169
- { return n + (end - i) }
170
- n += nextTab - i
171
- n += tabSize - (n % tabSize)
172
- i = nextTab + 1
173
- }
174
- }
175
-
176
- var Delayed = function() {this.id = null};
177
- Delayed.prototype.set = function (ms, f) {
178
- clearTimeout(this.id)
179
- this.id = setTimeout(f, ms)
180
- };
181
-
182
- function indexOf(array, elt) {
183
- for (var i = 0; i < array.length; ++i)
184
- { if (array[i] == elt) { return i } }
185
- return -1
186
- }
187
-
188
- // Number of pixels added to scroller and sizer to hide scrollbar
189
- var scrollerGap = 30
190
-
191
- // Returned or thrown by various protocols to signal 'I'm not
192
- // handling this'.
193
- var Pass = {toString: function(){return "CodeMirror.Pass"}}
194
-
195
- // Reused option objects for setSelection & friends
196
- var sel_dontScroll = {scroll: false};
197
- var sel_mouse = {origin: "*mouse"};
198
- var sel_move = {origin: "+move"};
199
- // The inverse of countColumn -- find the offset that corresponds to
200
- // a particular column.
201
- function findColumn(string, goal, tabSize) {
202
- for (var pos = 0, col = 0;;) {
203
- var nextTab = string.indexOf("\t", pos)
204
- if (nextTab == -1) { nextTab = string.length }
205
- var skipped = nextTab - pos
206
- if (nextTab == string.length || col + skipped >= goal)
207
- { return pos + Math.min(skipped, goal - col) }
208
- col += nextTab - pos
209
- col += tabSize - (col % tabSize)
210
- pos = nextTab + 1
211
- if (col >= goal) { return pos }
212
- }
213
- }
214
-
215
- var spaceStrs = [""]
216
- function spaceStr(n) {
217
- while (spaceStrs.length <= n)
218
- { spaceStrs.push(lst(spaceStrs) + " ") }
219
- return spaceStrs[n]
220
- }
221
-
222
- function lst(arr) { return arr[arr.length-1] }
223
-
224
- function map(array, f) {
225
- var out = []
226
- for (var i = 0; i < array.length; i++) { out[i] = f(array[i], i) }
227
- return out
228
- }
229
-
230
- function insertSorted(array, value, score) {
231
- var pos = 0, priority = score(value)
232
- while (pos < array.length && score(array[pos]) <= priority) { pos++ }
233
- array.splice(pos, 0, value)
234
- }
235
-
236
- function nothing() {}
237
-
238
- function createObj(base, props) {
239
- var inst
240
- if (Object.create) {
241
- inst = Object.create(base)
242
- } else {
243
- nothing.prototype = base
244
- inst = new nothing()
245
- }
246
- if (props) { copyObj(props, inst) }
247
- return inst
248
- }
249
-
250
- var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/
251
- function isWordCharBasic(ch) {
252
- return /\w/.test(ch) || ch > "\x80" &&
253
- (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch))
254
- }
255
- function isWordChar(ch, helper) {
256
- if (!helper) { return isWordCharBasic(ch) }
257
- if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) { return true }
258
- return helper.test(ch)
259
- }
260
-
261
- function isEmpty(obj) {
262
- for (var n in obj) { if (obj.hasOwnProperty(n) && obj[n]) { return false } }
263
- return true
264
- }
265
-
266
- // Extending unicode characters. A series of a non-extending char +
267
- // any number of extending chars is treated as a single unit as far
268
- // as editing and measuring is concerned. This is not fully correct,
269
- // since some scripts/fonts/browsers also treat other configurations
270
- // of code points as a group.
271
- var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/
272
- function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) }
273
-
274
- // Returns a number from the range [`0`; `str.length`] unless `pos` is outside that range.
275
- function skipExtendingChars(str, pos, dir) {
276
- while ((dir < 0 ? pos > 0 : pos < str.length) && isExtendingChar(str.charAt(pos))) { pos += dir }
277
- return pos
278
- }
279
-
280
- // Returns the value from the range [`from`; `to`] that satisfies
281
- // `pred` and is closest to `from`. Assumes that at least `to`
282
- // satisfies `pred`. Supports `from` being greater than `to`.
283
- function findFirst(pred, from, to) {
284
- // At any point we are certain `to` satisfies `pred`, don't know
285
- // whether `from` does.
286
- var dir = from > to ? -1 : 1
287
- for (;;) {
288
- if (from == to) { return from }
289
- var midF = (from + to) / 2, mid = dir < 0 ? Math.ceil(midF) : Math.floor(midF)
290
- if (mid == from) { return pred(mid) ? from : to }
291
- if (pred(mid)) { to = mid }
292
- else { from = mid + dir }
293
- }
294
- }
295
-
296
- // The display handles the DOM integration, both for input reading
297
- // and content drawing. It holds references to DOM nodes and
298
- // display-related state.
299
-
300
- function Display(place, doc, input) {
301
- var d = this
302
- this.input = input
303
-
304
- // Covers bottom-right square when both scrollbars are present.
305
- d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler")
306
- d.scrollbarFiller.setAttribute("cm-not-content", "true")
307
- // Covers bottom of gutter when coverGutterNextToScrollbar is on
308
- // and h scrollbar is present.
309
- d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler")
310
- d.gutterFiller.setAttribute("cm-not-content", "true")
311
- // Will contain the actual code, positioned to cover the viewport.
312
- d.lineDiv = eltP("div", null, "CodeMirror-code")
313
- // Elements are added to these to represent selection and cursors.
314
- d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1")
315
- d.cursorDiv = elt("div", null, "CodeMirror-cursors")
316
- // A visibility: hidden element used to find the size of things.
317
- d.measure = elt("div", null, "CodeMirror-measure")
318
- // When lines outside of the viewport are measured, they are drawn in this.
319
- d.lineMeasure = elt("div", null, "CodeMirror-measure")
320
- // Wraps everything that needs to exist inside the vertically-padded coordinate system
321
- d.lineSpace = eltP("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],
322
- null, "position: relative; outline: none")
323
- var lines = eltP("div", [d.lineSpace], "CodeMirror-lines")
324
- // Moved around its parent to cover visible view.
325
- d.mover = elt("div", [lines], null, "position: relative")
326
- // Set to the height of the document, allowing scrolling.
327
- d.sizer = elt("div", [d.mover], "CodeMirror-sizer")
328
- d.sizerWidth = null
329
- // Behavior of elts with overflow: auto and padding is
330
- // inconsistent across browsers. This is used to ensure the
331
- // scrollable area is big enough.
332
- d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;")
333
- // Will contain the gutters, if any.
334
- d.gutters = elt("div", null, "CodeMirror-gutters")
335
- d.lineGutter = null
336
- // Actual scrollable element.
337
- d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll")
338
- d.scroller.setAttribute("tabIndex", "-1")
339
- // The element in which the editor lives.
340
- d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror")
341
-
342
- // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)
343
- if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0 }
344
- if (!webkit && !(gecko && mobile)) { d.scroller.draggable = true }
345
-
346
- if (place) {
347
- if (place.appendChild) { place.appendChild(d.wrapper) }
348
- else { place(d.wrapper) }
349
- }
350
-
351
- // Current rendered range (may be bigger than the view window).
352
- d.viewFrom = d.viewTo = doc.first
353
- d.reportedViewFrom = d.reportedViewTo = doc.first
354
- // Information about the rendered lines.
355
- d.view = []
356
- d.renderedView = null
357
- // Holds info about a single rendered line when it was rendered
358
- // for measurement, while not in view.
359
- d.externalMeasured = null
360
- // Empty space (in pixels) above the view
361
- d.viewOffset = 0
362
- d.lastWrapHeight = d.lastWrapWidth = 0
363
- d.updateLineNumbers = null
364
-
365
- d.nativeBarWidth = d.barHeight = d.barWidth = 0
366
- d.scrollbarsClipped = false
367
-
368
- // Used to only resize the line number gutter when necessary (when
369
- // the amount of lines crosses a boundary that makes its width change)
370
- d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null
371
- // Set to true when a non-horizontal-scrolling line widget is
372
- // added. As an optimization, line widget aligning is skipped when
373
- // this is false.
374
- d.alignWidgets = false
375
-
376
- d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null
377
-
378
- // Tracks the maximum line length so that the horizontal scrollbar
379
- // can be kept static when scrolling.
380
- d.maxLine = null
381
- d.maxLineLength = 0
382
- d.maxLineChanged = false
383
-
384
- // Used for measuring wheel scrolling granularity
385
- d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null
386
-
387
- // True when shift is held down.
388
- d.shift = false
389
-
390
- // Used to track whether anything happened since the context menu
391
- // was opened.
392
- d.selForContextMenu = null
393
-
394
- d.activeTouch = null
395
-
396
- input.init(d)
397
- }
398
-
399
- // Find the line object corresponding to the given line number.
400
- function getLine(doc, n) {
401
- n -= doc.first
402
- if (n < 0 || n >= doc.size) { throw new Error("There is no line " + (n + doc.first) + " in the document.") }
403
- var chunk = doc
404
- while (!chunk.lines) {
405
- for (var i = 0;; ++i) {
406
- var child = chunk.children[i], sz = child.chunkSize()
407
- if (n < sz) { chunk = child; break }
408
- n -= sz
409
- }
410
- }
411
- return chunk.lines[n]
412
- }
413
-
414
- // Get the part of a document between two positions, as an array of
415
- // strings.
416
- function getBetween(doc, start, end) {
417
- var out = [], n = start.line
418
- doc.iter(start.line, end.line + 1, function (line) {
419
- var text = line.text
420
- if (n == end.line) { text = text.slice(0, end.ch) }
421
- if (n == start.line) { text = text.slice(start.ch) }
422
- out.push(text)
423
- ++n
424
- })
425
- return out
426
- }
427
- // Get the lines between from and to, as array of strings.
428
- function getLines(doc, from, to) {
429
- var out = []
430
- doc.iter(from, to, function (line) { out.push(line.text) }) // iter aborts when callback returns truthy value
431
- return out
432
- }
433
-
434
- // Update the height of a line, propagating the height change
435
- // upwards to parent nodes.
436
- function updateLineHeight(line, height) {
437
- var diff = height - line.height
438
- if (diff) { for (var n = line; n; n = n.parent) { n.height += diff } }
439
- }
440
-
441
- // Given a line object, find its line number by walking up through
442
- // its parent links.
443
- function lineNo(line) {
444
- if (line.parent == null) { return null }
445
- var cur = line.parent, no = indexOf(cur.lines, line)
446
- for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
447
- for (var i = 0;; ++i) {
448
- if (chunk.children[i] == cur) { break }
449
- no += chunk.children[i].chunkSize()
450
- }
451
- }
452
- return no + cur.first
453
- }
454
-
455
- // Find the line at the given vertical position, using the height
456
- // information in the document tree.
457
- function lineAtHeight(chunk, h) {
458
- var n = chunk.first
459
- outer: do {
460
- for (var i$1 = 0; i$1 < chunk.children.length; ++i$1) {
461
- var child = chunk.children[i$1], ch = child.height
462
- if (h < ch) { chunk = child; continue outer }
463
- h -= ch
464
- n += child.chunkSize()
465
- }
466
- return n
467
- } while (!chunk.lines)
468
- var i = 0
469
- for (; i < chunk.lines.length; ++i) {
470
- var line = chunk.lines[i], lh = line.height
471
- if (h < lh) { break }
472
- h -= lh
473
- }
474
- return n + i
475
- }
476
-
477
- function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size}
478
-
479
- function lineNumberFor(options, i) {
480
- return String(options.lineNumberFormatter(i + options.firstLineNumber))
481
- }
482
-
483
- // A Pos instance represents a position within the text.
484
- function Pos(line, ch, sticky) {
485
- if ( sticky === void 0 ) sticky = null;
486
-
487
- if (!(this instanceof Pos)) { return new Pos(line, ch, sticky) }
488
- this.line = line
489
- this.ch = ch
490
- this.sticky = sticky
491
- }
492
-
493
- // Compare two positions, return 0 if they are the same, a negative
494
- // number when a is less, and a positive number otherwise.
495
- function cmp(a, b) { return a.line - b.line || a.ch - b.ch }
496
-
497
- function equalCursorPos(a, b) { return a.sticky == b.sticky && cmp(a, b) == 0 }
498
-
499
- function copyPos(x) {return Pos(x.line, x.ch)}
500
- function maxPos(a, b) { return cmp(a, b) < 0 ? b : a }
501
- function minPos(a, b) { return cmp(a, b) < 0 ? a : b }
502
-
503
- // Most of the external API clips given positions to make sure they
504
- // actually exist within the document.
505
- function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))}
506
- function clipPos(doc, pos) {
507
- if (pos.line < doc.first) { return Pos(doc.first, 0) }
508
- var last = doc.first + doc.size - 1
509
- if (pos.line > last) { return Pos(last, getLine(doc, last).text.length) }
510
- return clipToLen(pos, getLine(doc, pos.line).text.length)
511
- }
512
- function clipToLen(pos, linelen) {
513
- var ch = pos.ch
514
- if (ch == null || ch > linelen) { return Pos(pos.line, linelen) }
515
- else if (ch < 0) { return Pos(pos.line, 0) }
516
- else { return pos }
517
- }
518
- function clipPosArray(doc, array) {
519
- var out = []
520
- for (var i = 0; i < array.length; i++) { out[i] = clipPos(doc, array[i]) }
521
- return out
522
- }
523
-
524
- // Optimize some code when these features are not used.
525
- var sawReadOnlySpans = false;
526
- var sawCollapsedSpans = false;
527
- function seeReadOnlySpans() {
528
- sawReadOnlySpans = true
529
- }
530
-
531
- function seeCollapsedSpans() {
532
- sawCollapsedSpans = true
533
- }
534
-
535
- // TEXTMARKER SPANS
536
-
537
- function MarkedSpan(marker, from, to) {
538
- this.marker = marker
539
- this.from = from; this.to = to
540
- }
541
-
542
- // Search an array of spans for a span matching the given marker.
543
- function getMarkedSpanFor(spans, marker) {
544
- if (spans) { for (var i = 0; i < spans.length; ++i) {
545
- var span = spans[i]
546
- if (span.marker == marker) { return span }
547
- } }
548
- }
549
- // Remove a span from an array, returning undefined if no spans are
550
- // left (we don't store arrays for lines without spans).
551
- function removeMarkedSpan(spans, span) {
552
- var r
553
- for (var i = 0; i < spans.length; ++i)
554
- { if (spans[i] != span) { (r || (r = [])).push(spans[i]) } }
555
- return r
556
- }
557
- // Add a span to a line.
558
- function addMarkedSpan(line, span) {
559
- line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span]
560
- span.marker.attachLine(line)
561
- }
562
-
563
- // Used for the algorithm that adjusts markers for a change in the
564
- // document. These functions cut an array of spans at a given
565
- // character position, returning an array of remaining chunks (or
566
- // undefined if nothing remains).
567
- function markedSpansBefore(old, startCh, isInsert) {
568
- var nw
569
- if (old) { for (var i = 0; i < old.length; ++i) {
570
- var span = old[i], marker = span.marker
571
- var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh)
572
- if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) {
573
- var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh)
574
- ;(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to))
575
- }
576
- } }
577
- return nw
578
- }
579
- function markedSpansAfter(old, endCh, isInsert) {
580
- var nw
581
- if (old) { for (var i = 0; i < old.length; ++i) {
582
- var span = old[i], marker = span.marker
583
- var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh)
584
- if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) {
585
- var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh)
586
- ;(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,
587
- span.to == null ? null : span.to - endCh))
588
- }
589
- } }
590
- return nw
591
- }
592
-
593
- // Given a change object, compute the new set of marker spans that
594
- // cover the line in which the change took place. Removes spans
595
- // entirely within the change, reconnects spans belonging to the
596
- // same marker that appear on both sides of the change, and cuts off
597
- // spans partially within the change. Returns an array of span
598
- // arrays with one element for each line in (after) the change.
599
- function stretchSpansOverChange(doc, change) {
600
- if (change.full) { return null }
601
- var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans
602
- var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans
603
- if (!oldFirst && !oldLast) { return null }
604
-
605
- var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0
606
- // Get the spans that 'stick out' on both sides
607
- var first = markedSpansBefore(oldFirst, startCh, isInsert)
608
- var last = markedSpansAfter(oldLast, endCh, isInsert)
609
-
610
- // Next, merge those two ends
611
- var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0)
612
- if (first) {
613
- // Fix up .to properties of first
614
- for (var i = 0; i < first.length; ++i) {
615
- var span = first[i]
616
- if (span.to == null) {
617
- var found = getMarkedSpanFor(last, span.marker)
618
- if (!found) { span.to = startCh }
619
- else if (sameLine) { span.to = found.to == null ? null : found.to + offset }
620
- }
621
- }
622
- }
623
- if (last) {
624
- // Fix up .from in last (or move them into first in case of sameLine)
625
- for (var i$1 = 0; i$1 < last.length; ++i$1) {
626
- var span$1 = last[i$1]
627
- if (span$1.to != null) { span$1.to += offset }
628
- if (span$1.from == null) {
629
- var found$1 = getMarkedSpanFor(first, span$1.marker)
630
- if (!found$1) {
631
- span$1.from = offset
632
- if (sameLine) { (first || (first = [])).push(span$1) }
633
- }
634
- } else {
635
- span$1.from += offset
636
- if (sameLine) { (first || (first = [])).push(span$1) }
637
- }
638
- }
639
- }
640
- // Make sure we didn't create any zero-length spans
641
- if (first) { first = clearEmptySpans(first) }
642
- if (last && last != first) { last = clearEmptySpans(last) }
643
-
644
- var newMarkers = [first]
645
- if (!sameLine) {
646
- // Fill gap with whole-line-spans
647
- var gap = change.text.length - 2, gapMarkers
648
- if (gap > 0 && first)
649
- { for (var i$2 = 0; i$2 < first.length; ++i$2)
650
- { if (first[i$2].to == null)
651
- { (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i$2].marker, null, null)) } } }
652
- for (var i$3 = 0; i$3 < gap; ++i$3)
653
- { newMarkers.push(gapMarkers) }
654
- newMarkers.push(last)
655
- }
656
- return newMarkers
657
- }
658
-
659
- // Remove spans that are empty and don't have a clearWhenEmpty
660
- // option of false.
661
- function clearEmptySpans(spans) {
662
- for (var i = 0; i < spans.length; ++i) {
663
- var span = spans[i]
664
- if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)
665
- { spans.splice(i--, 1) }
666
- }
667
- if (!spans.length) { return null }
668
- return spans
669
- }
670
-
671
- // Used to 'clip' out readOnly ranges when making a change.
672
- function removeReadOnlyRanges(doc, from, to) {
673
- var markers = null
674
- doc.iter(from.line, to.line + 1, function (line) {
675
- if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
676
- var mark = line.markedSpans[i].marker
677
- if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))
678
- { (markers || (markers = [])).push(mark) }
679
- } }
680
- })
681
- if (!markers) { return null }
682
- var parts = [{from: from, to: to}]
683
- for (var i = 0; i < markers.length; ++i) {
684
- var mk = markers[i], m = mk.find(0)
685
- for (var j = 0; j < parts.length; ++j) {
686
- var p = parts[j]
687
- if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) { continue }
688
- var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to)
689
- if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)
690
- { newParts.push({from: p.from, to: m.from}) }
691
- if (dto > 0 || !mk.inclusiveRight && !dto)
692
- { newParts.push({from: m.to, to: p.to}) }
693
- parts.splice.apply(parts, newParts)
694
- j += newParts.length - 3
695
- }
696
- }
697
- return parts
698
- }
699
-
700
- // Connect or disconnect spans from a line.
701
- function detachMarkedSpans(line) {
702
- var spans = line.markedSpans
703
- if (!spans) { return }
704
- for (var i = 0; i < spans.length; ++i)
705
- { spans[i].marker.detachLine(line) }
706
- line.markedSpans = null
707
- }
708
- function attachMarkedSpans(line, spans) {
709
- if (!spans) { return }
710
- for (var i = 0; i < spans.length; ++i)
711
- { spans[i].marker.attachLine(line) }
712
- line.markedSpans = spans
713
- }
714
-
715
- // Helpers used when computing which overlapping collapsed span
716
- // counts as the larger one.
717
- function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 }
718
- function extraRight(marker) { return marker.inclusiveRight ? 1 : 0 }
719
-
720
- // Returns a number indicating which of two overlapping collapsed
721
- // spans is larger (and thus includes the other). Falls back to
722
- // comparing ids when the spans cover exactly the same range.
723
- function compareCollapsedMarkers(a, b) {
724
- var lenDiff = a.lines.length - b.lines.length
725
- if (lenDiff != 0) { return lenDiff }
726
- var aPos = a.find(), bPos = b.find()
727
- var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b)
728
- if (fromCmp) { return -fromCmp }
729
- var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b)
730
- if (toCmp) { return toCmp }
731
- return b.id - a.id
732
- }
733
-
734
- // Find out whether a line ends or starts in a collapsed span. If
735
- // so, return the marker for that span.
736
- function collapsedSpanAtSide(line, start) {
737
- var sps = sawCollapsedSpans && line.markedSpans, found
738
- if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {
739
- sp = sps[i]
740
- if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&
741
- (!found || compareCollapsedMarkers(found, sp.marker) < 0))
742
- { found = sp.marker }
743
- } }
744
- return found
745
- }
746
- function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) }
747
- function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) }
748
-
749
- function collapsedSpanAround(line, ch) {
750
- var sps = sawCollapsedSpans && line.markedSpans, found
751
- if (sps) { for (var i = 0; i < sps.length; ++i) {
752
- var sp = sps[i]
753
- if (sp.marker.collapsed && (sp.from == null || sp.from < ch) && (sp.to == null || sp.to > ch) &&
754
- (!found || compareCollapsedMarkers(found, sp.marker) < 0)) { found = sp.marker }
755
- } }
756
- return found
757
- }
758
-
759
- // Test whether there exists a collapsed span that partially
760
- // overlaps (covers the start or end, but not both) of a new span.
761
- // Such overlap is not allowed.
762
- function conflictingCollapsedRange(doc, lineNo, from, to, marker) {
763
- var line = getLine(doc, lineNo)
764
- var sps = sawCollapsedSpans && line.markedSpans
765
- if (sps) { for (var i = 0; i < sps.length; ++i) {
766
- var sp = sps[i]
767
- if (!sp.marker.collapsed) { continue }
768
- var found = sp.marker.find(0)
769
- var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker)
770
- var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker)
771
- if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) { continue }
772
- if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) ||
773
- fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0))
774
- { return true }
775
- } }
776
- }
777
-
778
- // A visual line is a line as drawn on the screen. Folding, for
779
- // example, can cause multiple logical lines to appear on the same
780
- // visual line. This finds the start of the visual line that the
781
- // given line is part of (usually that is the line itself).
782
- function visualLine(line) {
783
- var merged
784
- while (merged = collapsedSpanAtStart(line))
785
- { line = merged.find(-1, true).line }
786
- return line
787
- }
788
-
789
- function visualLineEnd(line) {
790
- var merged
791
- while (merged = collapsedSpanAtEnd(line))
792
- { line = merged.find(1, true).line }
793
- return line
794
- }
795
-
796
- // Returns an array of logical lines that continue the visual line
797
- // started by the argument, or undefined if there are no such lines.
798
- function visualLineContinued(line) {
799
- var merged, lines
800
- while (merged = collapsedSpanAtEnd(line)) {
801
- line = merged.find(1, true).line
802
- ;(lines || (lines = [])).push(line)
803
- }
804
- return lines
805
- }
806
-
807
- // Get the line number of the start of the visual line that the
808
- // given line number is part of.
809
- function visualLineNo(doc, lineN) {
810
- var line = getLine(doc, lineN), vis = visualLine(line)
811
- if (line == vis) { return lineN }
812
- return lineNo(vis)
813
- }
814
-
815
- // Get the line number of the start of the next visual line after
816
- // the given line.
817
- function visualLineEndNo(doc, lineN) {
818
- if (lineN > doc.lastLine()) { return lineN }
819
- var line = getLine(doc, lineN), merged
820
- if (!lineIsHidden(doc, line)) { return lineN }
821
- while (merged = collapsedSpanAtEnd(line))
822
- { line = merged.find(1, true).line }
823
- return lineNo(line) + 1
824
- }
825
-
826
- // Compute whether a line is hidden. Lines count as hidden when they
827
- // are part of a visual line that starts with another line, or when
828
- // they are entirely covered by collapsed, non-widget span.
829
- function lineIsHidden(doc, line) {
830
- var sps = sawCollapsedSpans && line.markedSpans
831
- if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {
832
- sp = sps[i]
833
- if (!sp.marker.collapsed) { continue }
834
- if (sp.from == null) { return true }
835
- if (sp.marker.widgetNode) { continue }
836
- if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))
837
- { return true }
838
- } }
839
- }
840
- function lineIsHiddenInner(doc, line, span) {
841
- if (span.to == null) {
842
- var end = span.marker.find(1, true)
843
- return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker))
844
- }
845
- if (span.marker.inclusiveRight && span.to == line.text.length)
846
- { return true }
847
- for (var sp = (void 0), i = 0; i < line.markedSpans.length; ++i) {
848
- sp = line.markedSpans[i]
849
- if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&
850
- (sp.to == null || sp.to != span.from) &&
851
- (sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&
852
- lineIsHiddenInner(doc, line, sp)) { return true }
853
- }
854
- }
855
-
856
- // Find the height above the given line.
857
- function heightAtLine(lineObj) {
858
- lineObj = visualLine(lineObj)
859
-
860
- var h = 0, chunk = lineObj.parent
861
- for (var i = 0; i < chunk.lines.length; ++i) {
862
- var line = chunk.lines[i]
863
- if (line == lineObj) { break }
864
- else { h += line.height }
865
- }
866
- for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {
867
- for (var i$1 = 0; i$1 < p.children.length; ++i$1) {
868
- var cur = p.children[i$1]
869
- if (cur == chunk) { break }
870
- else { h += cur.height }
871
- }
872
- }
873
- return h
874
- }
875
-
876
- // Compute the character length of a line, taking into account
877
- // collapsed ranges (see markText) that might hide parts, and join
878
- // other lines onto it.
879
- function lineLength(line) {
880
- if (line.height == 0) { return 0 }
881
- var len = line.text.length, merged, cur = line
882
- while (merged = collapsedSpanAtStart(cur)) {
883
- var found = merged.find(0, true)
884
- cur = found.from.line
885
- len += found.from.ch - found.to.ch
886
- }
887
- cur = line
888
- while (merged = collapsedSpanAtEnd(cur)) {
889
- var found$1 = merged.find(0, true)
890
- len -= cur.text.length - found$1.from.ch
891
- cur = found$1.to.line
892
- len += cur.text.length - found$1.to.ch
893
- }
894
- return len
895
- }
896
-
897
- // Find the longest line in the document.
898
- function findMaxLine(cm) {
899
- var d = cm.display, doc = cm.doc
900
- d.maxLine = getLine(doc, doc.first)
901
- d.maxLineLength = lineLength(d.maxLine)
902
- d.maxLineChanged = true
903
- doc.iter(function (line) {
904
- var len = lineLength(line)
905
- if (len > d.maxLineLength) {
906
- d.maxLineLength = len
907
- d.maxLine = line
908
- }
909
- })
910
- }
911
-
912
- // BIDI HELPERS
913
-
914
- function iterateBidiSections(order, from, to, f) {
915
- if (!order) { return f(from, to, "ltr", 0) }
916
- var found = false
917
- for (var i = 0; i < order.length; ++i) {
918
- var part = order[i]
919
- if (part.from < to && part.to > from || from == to && part.to == from) {
920
- f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr", i)
921
- found = true
922
- }
923
- }
924
- if (!found) { f(from, to, "ltr") }
925
- }
926
-
927
- var bidiOther = null
928
- function getBidiPartAt(order, ch, sticky) {
929
- var found
930
- bidiOther = null
931
- for (var i = 0; i < order.length; ++i) {
932
- var cur = order[i]
933
- if (cur.from < ch && cur.to > ch) { return i }
934
- if (cur.to == ch) {
935
- if (cur.from != cur.to && sticky == "before") { found = i }
936
- else { bidiOther = i }
937
- }
938
- if (cur.from == ch) {
939
- if (cur.from != cur.to && sticky != "before") { found = i }
940
- else { bidiOther = i }
941
- }
942
- }
943
- return found != null ? found : bidiOther
944
- }
945
-
946
- // Bidirectional ordering algorithm
947
- // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
948
- // that this (partially) implements.
949
-
950
- // One-char codes used for character types:
951
- // L (L): Left-to-Right
952
- // R (R): Right-to-Left
953
- // r (AL): Right-to-Left Arabic
954
- // 1 (EN): European Number
955
- // + (ES): European Number Separator
956
- // % (ET): European Number Terminator
957
- // n (AN): Arabic Number
958
- // , (CS): Common Number Separator
959
- // m (NSM): Non-Spacing Mark
960
- // b (BN): Boundary Neutral
961
- // s (B): Paragraph Separator
962
- // t (S): Segment Separator
963
- // w (WS): Whitespace
964
- // N (ON): Other Neutrals
965
-
966
- // Returns null if characters are ordered as they appear
967
- // (left-to-right), or an array of sections ({from, to, level}
968
- // objects) in the order in which they occur visually.
969
- var bidiOrdering = (function() {
970
- // Character types for codepoints 0 to 0xff
971
- var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN"
972
- // Character types for codepoints 0x600 to 0x6f9
973
- var arabicTypes = "nnnnnnNNr%%r,rNNmmmmmmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmnNmmmmmmrrmmNmmmmrr1111111111"
974
- function charType(code) {
975
- if (code <= 0xf7) { return lowTypes.charAt(code) }
976
- else if (0x590 <= code && code <= 0x5f4) { return "R" }
977
- else if (0x600 <= code && code <= 0x6f9) { return arabicTypes.charAt(code - 0x600) }
978
- else if (0x6ee <= code && code <= 0x8ac) { return "r" }
979
- else if (0x2000 <= code && code <= 0x200b) { return "w" }
980
- else if (code == 0x200c) { return "b" }
981
- else { return "L" }
982
- }
983
-
984
- var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/
985
- var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/
986
-
987
- function BidiSpan(level, from, to) {
988
- this.level = level
989
- this.from = from; this.to = to
990
- }
991
-
992
- return function(str, direction) {
993
- var outerType = direction == "ltr" ? "L" : "R"
994
-
995
- if (str.length == 0 || direction == "ltr" && !bidiRE.test(str)) { return false }
996
- var len = str.length, types = []
997
- for (var i = 0; i < len; ++i)
998
- { types.push(charType(str.charCodeAt(i))) }
999
-
1000
- // W1. Examine each non-spacing mark (NSM) in the level run, and
1001
- // change the type of the NSM to the type of the previous
1002
- // character. If the NSM is at the start of the level run, it will
1003
- // get the type of sor.
1004
- for (var i$1 = 0, prev = outerType; i$1 < len; ++i$1) {
1005
- var type = types[i$1]
1006
- if (type == "m") { types[i$1] = prev }
1007
- else { prev = type }
1008
- }
1009
-
1010
- // W2. Search backwards from each instance of a European number
1011
- // until the first strong type (R, L, AL, or sor) is found. If an
1012
- // AL is found, change the type of the European number to Arabic
1013
- // number.
1014
- // W3. Change all ALs to R.
1015
- for (var i$2 = 0, cur = outerType; i$2 < len; ++i$2) {
1016
- var type$1 = types[i$2]
1017
- if (type$1 == "1" && cur == "r") { types[i$2] = "n" }
1018
- else if (isStrong.test(type$1)) { cur = type$1; if (type$1 == "r") { types[i$2] = "R" } }
1019
- }
1020
-
1021
- // W4. A single European separator between two European numbers
1022
- // changes to a European number. A single common separator between
1023
- // two numbers of the same type changes to that type.
1024
- for (var i$3 = 1, prev$1 = types[0]; i$3 < len - 1; ++i$3) {
1025
- var type$2 = types[i$3]
1026
- if (type$2 == "+" && prev$1 == "1" && types[i$3+1] == "1") { types[i$3] = "1" }
1027
- else if (type$2 == "," && prev$1 == types[i$3+1] &&
1028
- (prev$1 == "1" || prev$1 == "n")) { types[i$3] = prev$1 }
1029
- prev$1 = type$2
1030
- }
1031
-
1032
- // W5. A sequence of European terminators adjacent to European
1033
- // numbers changes to all European numbers.
1034
- // W6. Otherwise, separators and terminators change to Other
1035
- // Neutral.
1036
- for (var i$4 = 0; i$4 < len; ++i$4) {
1037
- var type$3 = types[i$4]
1038
- if (type$3 == ",") { types[i$4] = "N" }
1039
- else if (type$3 == "%") {
1040
- var end = (void 0)
1041
- for (end = i$4 + 1; end < len && types[end] == "%"; ++end) {}
1042
- var replace = (i$4 && types[i$4-1] == "!") || (end < len && types[end] == "1") ? "1" : "N"
1043
- for (var j = i$4; j < end; ++j) { types[j] = replace }
1044
- i$4 = end - 1
1045
- }
1046
- }
1047
-
1048
- // W7. Search backwards from each instance of a European number
1049
- // until the first strong type (R, L, or sor) is found. If an L is
1050
- // found, then change the type of the European number to L.
1051
- for (var i$5 = 0, cur$1 = outerType; i$5 < len; ++i$5) {
1052
- var type$4 = types[i$5]
1053
- if (cur$1 == "L" && type$4 == "1") { types[i$5] = "L" }
1054
- else if (isStrong.test(type$4)) { cur$1 = type$4 }
1055
- }
1056
-
1057
- // N1. A sequence of neutrals takes the direction of the
1058
- // surrounding strong text if the text on both sides has the same
1059
- // direction. European and Arabic numbers act as if they were R in
1060
- // terms of their influence on neutrals. Start-of-level-run (sor)
1061
- // and end-of-level-run (eor) are used at level run boundaries.
1062
- // N2. Any remaining neutrals take the embedding direction.
1063
- for (var i$6 = 0; i$6 < len; ++i$6) {
1064
- if (isNeutral.test(types[i$6])) {
1065
- var end$1 = (void 0)
1066
- for (end$1 = i$6 + 1; end$1 < len && isNeutral.test(types[end$1]); ++end$1) {}
1067
- var before = (i$6 ? types[i$6-1] : outerType) == "L"
1068
- var after = (end$1 < len ? types[end$1] : outerType) == "L"
1069
- var replace$1 = before == after ? (before ? "L" : "R") : outerType
1070
- for (var j$1 = i$6; j$1 < end$1; ++j$1) { types[j$1] = replace$1 }
1071
- i$6 = end$1 - 1
1072
- }
1073
- }
1074
-
1075
- // Here we depart from the documented algorithm, in order to avoid
1076
- // building up an actual levels array. Since there are only three
1077
- // levels (0, 1, 2) in an implementation that doesn't take
1078
- // explicit embedding into account, we can build up the order on
1079
- // the fly, without following the level-based algorithm.
1080
- var order = [], m
1081
- for (var i$7 = 0; i$7 < len;) {
1082
- if (countsAsLeft.test(types[i$7])) {
1083
- var start = i$7
1084
- for (++i$7; i$7 < len && countsAsLeft.test(types[i$7]); ++i$7) {}
1085
- order.push(new BidiSpan(0, start, i$7))
1086
- } else {
1087
- var pos = i$7, at = order.length
1088
- for (++i$7; i$7 < len && types[i$7] != "L"; ++i$7) {}
1089
- for (var j$2 = pos; j$2 < i$7;) {
1090
- if (countsAsNum.test(types[j$2])) {
1091
- if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)) }
1092
- var nstart = j$2
1093
- for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {}
1094
- order.splice(at, 0, new BidiSpan(2, nstart, j$2))
1095
- pos = j$2
1096
- } else { ++j$2 }
1097
- }
1098
- if (pos < i$7) { order.splice(at, 0, new BidiSpan(1, pos, i$7)) }
1099
- }
1100
- }
1101
- if (direction == "ltr") {
1102
- if (order[0].level == 1 && (m = str.match(/^\s+/))) {
1103
- order[0].from = m[0].length
1104
- order.unshift(new BidiSpan(0, 0, m[0].length))
1105
- }
1106
- if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
1107
- lst(order).to -= m[0].length
1108
- order.push(new BidiSpan(0, len - m[0].length, len))
1109
- }
1110
- }
1111
-
1112
- return direction == "rtl" ? order.reverse() : order
1113
- }
1114
- })()
1115
-
1116
- // Get the bidi ordering for the given line (and cache it). Returns
1117
- // false for lines that are fully left-to-right, and an array of
1118
- // BidiSpan objects otherwise.
1119
- function getOrder(line, direction) {
1120
- var order = line.order
1121
- if (order == null) { order = line.order = bidiOrdering(line.text, direction) }
1122
- return order
1123
- }
1124
-
1125
- // EVENT HANDLING
1126
-
1127
- // Lightweight event framework. on/off also work on DOM nodes,
1128
- // registering native DOM handlers.
1129
-
1130
- var noHandlers = []
1131
-
1132
- var on = function(emitter, type, f) {
1133
- if (emitter.addEventListener) {
1134
- emitter.addEventListener(type, f, false)
1135
- } else if (emitter.attachEvent) {
1136
- emitter.attachEvent("on" + type, f)
1137
- } else {
1138
- var map = emitter._handlers || (emitter._handlers = {})
1139
- map[type] = (map[type] || noHandlers).concat(f)
1140
- }
1141
- }
1142
-
1143
- function getHandlers(emitter, type) {
1144
- return emitter._handlers && emitter._handlers[type] || noHandlers
1145
- }
1146
-
1147
- function off(emitter, type, f) {
1148
- if (emitter.removeEventListener) {
1149
- emitter.removeEventListener(type, f, false)
1150
- } else if (emitter.detachEvent) {
1151
- emitter.detachEvent("on" + type, f)
1152
- } else {
1153
- var map = emitter._handlers, arr = map && map[type]
1154
- if (arr) {
1155
- var index = indexOf(arr, f)
1156
- if (index > -1)
1157
- { map[type] = arr.slice(0, index).concat(arr.slice(index + 1)) }
1158
- }
1159
- }
1160
- }
1161
-
1162
- function signal(emitter, type /*, values...*/) {
1163
- var handlers = getHandlers(emitter, type)
1164
- if (!handlers.length) { return }
1165
- var args = Array.prototype.slice.call(arguments, 2)
1166
- for (var i = 0; i < handlers.length; ++i) { handlers[i].apply(null, args) }
1167
- }
1168
-
1169
- // The DOM events that CodeMirror handles can be overridden by
1170
- // registering a (non-DOM) handler on the editor for the event name,
1171
- // and preventDefault-ing the event in that handler.
1172
- function signalDOMEvent(cm, e, override) {
1173
- if (typeof e == "string")
1174
- { e = {type: e, preventDefault: function() { this.defaultPrevented = true }} }
1175
- signal(cm, override || e.type, cm, e)
1176
- return e_defaultPrevented(e) || e.codemirrorIgnore
1177
- }
1178
-
1179
- function signalCursorActivity(cm) {
1180
- var arr = cm._handlers && cm._handlers.cursorActivity
1181
- if (!arr) { return }
1182
- var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = [])
1183
- for (var i = 0; i < arr.length; ++i) { if (indexOf(set, arr[i]) == -1)
1184
- { set.push(arr[i]) } }
1185
- }
1186
-
1187
- function hasHandler(emitter, type) {
1188
- return getHandlers(emitter, type).length > 0
1189
- }
1190
-
1191
- // Add on and off methods to a constructor's prototype, to make
1192
- // registering events on such objects more convenient.
1193
- function eventMixin(ctor) {
1194
- ctor.prototype.on = function(type, f) {on(this, type, f)}
1195
- ctor.prototype.off = function(type, f) {off(this, type, f)}
1196
- }
1197
-
1198
- // Due to the fact that we still support jurassic IE versions, some
1199
- // compatibility wrappers are needed.
1200
-
1201
- function e_preventDefault(e) {
1202
- if (e.preventDefault) { e.preventDefault() }
1203
- else { e.returnValue = false }
1204
- }
1205
- function e_stopPropagation(e) {
1206
- if (e.stopPropagation) { e.stopPropagation() }
1207
- else { e.cancelBubble = true }
1208
- }
1209
- function e_defaultPrevented(e) {
1210
- return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false
1211
- }
1212
- function e_stop(e) {e_preventDefault(e); e_stopPropagation(e)}
1213
-
1214
- function e_target(e) {return e.target || e.srcElement}
1215
- function e_button(e) {
1216
- var b = e.which
1217
- if (b == null) {
1218
- if (e.button & 1) { b = 1 }
1219
- else if (e.button & 2) { b = 3 }
1220
- else if (e.button & 4) { b = 2 }
1221
- }
1222
- if (mac && e.ctrlKey && b == 1) { b = 3 }
1223
- return b
1224
- }
1225
-
1226
- // Detect drag-and-drop
1227
- var dragAndDrop = function() {
1228
- // There is *some* kind of drag-and-drop support in IE6-8, but I
1229
- // couldn't get it to work yet.
1230
- if (ie && ie_version < 9) { return false }
1231
- var div = elt('div')
1232
- return "draggable" in div || "dragDrop" in div
1233
- }()
1234
-
1235
- var zwspSupported
1236
- function zeroWidthElement(measure) {
1237
- if (zwspSupported == null) {
1238
- var test = elt("span", "\u200b")
1239
- removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")]))
1240
- if (measure.firstChild.offsetHeight != 0)
1241
- { zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8) }
1242
- }
1243
- var node = zwspSupported ? elt("span", "\u200b") :
1244
- elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px")
1245
- node.setAttribute("cm-text", "")
1246
- return node
1247
- }
1248
-
1249
- // Feature-detect IE's crummy client rect reporting for bidi text
1250
- var badBidiRects
1251
- function hasBadBidiRects(measure) {
1252
- if (badBidiRects != null) { return badBidiRects }
1253
- var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA"))
1254
- var r0 = range(txt, 0, 1).getBoundingClientRect()
1255
- var r1 = range(txt, 1, 2).getBoundingClientRect()
1256
- removeChildren(measure)
1257
- if (!r0 || r0.left == r0.right) { return false } // Safari returns null in some cases (#2780)
1258
- return badBidiRects = (r1.right - r0.right < 3)
1259
- }
1260
-
1261
- // See if "".split is the broken IE version, if so, provide an
1262
- // alternative way to split lines.
1263
- var splitLinesAuto = "\n\nb".split(/\n/).length != 3 ? function (string) {
1264
- var pos = 0, result = [], l = string.length
1265
- while (pos <= l) {
1266
- var nl = string.indexOf("\n", pos)
1267
- if (nl == -1) { nl = string.length }
1268
- var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl)
1269
- var rt = line.indexOf("\r")
1270
- if (rt != -1) {
1271
- result.push(line.slice(0, rt))
1272
- pos += rt + 1
1273
- } else {
1274
- result.push(line)
1275
- pos = nl + 1
1276
- }
1277
- }
1278
- return result
1279
- } : function (string) { return string.split(/\r\n?|\n/); }
1280
-
1281
- var hasSelection = window.getSelection ? function (te) {
1282
- try { return te.selectionStart != te.selectionEnd }
1283
- catch(e) { return false }
1284
- } : function (te) {
1285
- var range
1286
- try {range = te.ownerDocument.selection.createRange()}
1287
- catch(e) {}
1288
- if (!range || range.parentElement() != te) { return false }
1289
- return range.compareEndPoints("StartToEnd", range) != 0
1290
- }
1291
-
1292
- var hasCopyEvent = (function () {
1293
- var e = elt("div")
1294
- if ("oncopy" in e) { return true }
1295
- e.setAttribute("oncopy", "return;")
1296
- return typeof e.oncopy == "function"
1297
- })()
1298
-
1299
- var badZoomedRects = null
1300
- function hasBadZoomedRects(measure) {
1301
- if (badZoomedRects != null) { return badZoomedRects }
1302
- var node = removeChildrenAndAdd(measure, elt("span", "x"))
1303
- var normal = node.getBoundingClientRect()
1304
- var fromRange = range(node, 0, 1).getBoundingClientRect()
1305
- return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1
1306
- }
1307
-
1308
- var modes = {};
1309
- var mimeModes = {};
1310
- // Extra arguments are stored as the mode's dependencies, which is
1311
- // used by (legacy) mechanisms like loadmode.js to automatically
1312
- // load a mode. (Preferred mechanism is the require/define calls.)
1313
- function defineMode(name, mode) {
1314
- if (arguments.length > 2)
1315
- { mode.dependencies = Array.prototype.slice.call(arguments, 2) }
1316
- modes[name] = mode
1317
- }
1318
-
1319
- function defineMIME(mime, spec) {
1320
- mimeModes[mime] = spec
1321
- }
1322
-
1323
- // Given a MIME type, a {name, ...options} config object, or a name
1324
- // string, return a mode config object.
1325
- function resolveMode(spec) {
1326
- if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
1327
- spec = mimeModes[spec]
1328
- } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
1329
- var found = mimeModes[spec.name]
1330
- if (typeof found == "string") { found = {name: found} }
1331
- spec = createObj(found, spec)
1332
- spec.name = found.name
1333
- } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
1334
- return resolveMode("application/xml")
1335
- } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+json$/.test(spec)) {
1336
- return resolveMode("application/json")
1337
- }
1338
- if (typeof spec == "string") { return {name: spec} }
1339
- else { return spec || {name: "null"} }
1340
- }
1341
-
1342
- // Given a mode spec (anything that resolveMode accepts), find and
1343
- // initialize an actual mode object.
1344
- function getMode(options, spec) {
1345
- spec = resolveMode(spec)
1346
- var mfactory = modes[spec.name]
1347
- if (!mfactory) { return getMode(options, "text/plain") }
1348
- var modeObj = mfactory(options, spec)
1349
- if (modeExtensions.hasOwnProperty(spec.name)) {
1350
- var exts = modeExtensions[spec.name]
1351
- for (var prop in exts) {
1352
- if (!exts.hasOwnProperty(prop)) { continue }
1353
- if (modeObj.hasOwnProperty(prop)) { modeObj["_" + prop] = modeObj[prop] }
1354
- modeObj[prop] = exts[prop]
1355
- }
1356
- }
1357
- modeObj.name = spec.name
1358
- if (spec.helperType) { modeObj.helperType = spec.helperType }
1359
- if (spec.modeProps) { for (var prop$1 in spec.modeProps)
1360
- { modeObj[prop$1] = spec.modeProps[prop$1] } }
1361
-
1362
- return modeObj
1363
- }
1364
-
1365
- // This can be used to attach properties to mode objects from
1366
- // outside the actual mode definition.
1367
- var modeExtensions = {}
1368
- function extendMode(mode, properties) {
1369
- var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {})
1370
- copyObj(properties, exts)
1371
- }
1372
-
1373
- function copyState(mode, state) {
1374
- if (state === true) { return state }
1375
- if (mode.copyState) { return mode.copyState(state) }
1376
- var nstate = {}
1377
- for (var n in state) {
1378
- var val = state[n]
1379
- if (val instanceof Array) { val = val.concat([]) }
1380
- nstate[n] = val
1381
- }
1382
- return nstate
1383
- }
1384
-
1385
- // Given a mode and a state (for that mode), find the inner mode and
1386
- // state at the position that the state refers to.
1387
- function innerMode(mode, state) {
1388
- var info
1389
- while (mode.innerMode) {
1390
- info = mode.innerMode(state)
1391
- if (!info || info.mode == mode) { break }
1392
- state = info.state
1393
- mode = info.mode
1394
- }
1395
- return info || {mode: mode, state: state}
1396
- }
1397
-
1398
- function startState(mode, a1, a2) {
1399
- return mode.startState ? mode.startState(a1, a2) : true
1400
- }
1401
-
1402
- // STRING STREAM
1403
-
1404
- // Fed to the mode parsers, provides helper functions to make
1405
- // parsers more succinct.
1406
-
1407
- var StringStream = function(string, tabSize, lineOracle) {
1408
- this.pos = this.start = 0
1409
- this.string = string
1410
- this.tabSize = tabSize || 8
1411
- this.lastColumnPos = this.lastColumnValue = 0
1412
- this.lineStart = 0
1413
- this.lineOracle = lineOracle
1414
- };
1415
-
1416
- StringStream.prototype.eol = function () {return this.pos >= this.string.length};
1417
- StringStream.prototype.sol = function () {return this.pos == this.lineStart};
1418
- StringStream.prototype.peek = function () {return this.string.charAt(this.pos) || undefined};
1419
- StringStream.prototype.next = function () {
1420
- if (this.pos < this.string.length)
1421
- { return this.string.charAt(this.pos++) }
1422
- };
1423
- StringStream.prototype.eat = function (match) {
1424
- var ch = this.string.charAt(this.pos)
1425
- var ok
1426
- if (typeof match == "string") { ok = ch == match }
1427
- else { ok = ch && (match.test ? match.test(ch) : match(ch)) }
1428
- if (ok) {++this.pos; return ch}
1429
- };
1430
- StringStream.prototype.eatWhile = function (match) {
1431
- var start = this.pos
1432
- while (this.eat(match)){}
1433
- return this.pos > start
1434
- };
1435
- StringStream.prototype.eatSpace = function () {
1436
- var this$1 = this;
1437
-
1438
- var start = this.pos
1439
- while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) { ++this$1.pos }
1440
- return this.pos > start
1441
- };
1442
- StringStream.prototype.skipToEnd = function () {this.pos = this.string.length};
1443
- StringStream.prototype.skipTo = function (ch) {
1444
- var found = this.string.indexOf(ch, this.pos)
1445
- if (found > -1) {this.pos = found; return true}
1446
- };
1447
- StringStream.prototype.backUp = function (n) {this.pos -= n};
1448
- StringStream.prototype.column = function () {
1449
- if (this.lastColumnPos < this.start) {
1450
- this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue)
1451
- this.lastColumnPos = this.start
1452
- }
1453
- return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
1454
- };
1455
- StringStream.prototype.indentation = function () {
1456
- return countColumn(this.string, null, this.tabSize) -
1457
- (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
1458
- };
1459
- StringStream.prototype.match = function (pattern, consume, caseInsensitive) {
1460
- if (typeof pattern == "string") {
1461
- var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; }
1462
- var substr = this.string.substr(this.pos, pattern.length)
1463
- if (cased(substr) == cased(pattern)) {
1464
- if (consume !== false) { this.pos += pattern.length }
1465
- return true
1466
  }
1467
- } else {
1468
- var match = this.string.slice(this.pos).match(pattern)
1469
- if (match && match.index > 0) { return null }
1470
- if (match && consume !== false) { this.pos += match[0].length }
1471
- return match
1472
- }
1473
- };
1474
- StringStream.prototype.current = function (){return this.string.slice(this.start, this.pos)};
1475
- StringStream.prototype.hideFirstChars = function (n, inner) {
1476
- this.lineStart += n
1477
- try { return inner() }
1478
- finally { this.lineStart -= n }
1479
- };
1480
- StringStream.prototype.lookAhead = function (n) {
1481
- var oracle = this.lineOracle
1482
- return oracle && oracle.lookAhead(n)
1483
- };
1484
- StringStream.prototype.baseToken = function () {
1485
- var oracle = this.lineOracle
1486
- return oracle && oracle.baseToken(this.pos)
1487
- };
1488
-
1489
- var SavedContext = function(state, lookAhead) {
1490
- this.state = state
1491
- this.lookAhead = lookAhead
1492
- };
1493
-
1494
- var Context = function(doc, state, line, lookAhead) {
1495
- this.state = state
1496
- this.doc = doc
1497
- this.line = line
1498
- this.maxLookAhead = lookAhead || 0
1499
- this.baseTokens = null
1500
- this.baseTokenPos = 1
1501
- };
1502
-
1503
- Context.prototype.lookAhead = function (n) {
1504
- var line = this.doc.getLine(this.line + n)
1505
- if (line != null && n > this.maxLookAhead) { this.maxLookAhead = n }
1506
- return line
1507
- };
1508
-
1509
- Context.prototype.baseToken = function (n) {
1510
- var this$1 = this;
1511
-
1512
- if (!this.baseTokens) { return null }
1513
- while (this.baseTokens[this.baseTokenPos] <= n)
1514
- { this$1.baseTokenPos += 2 }
1515
- var type = this.baseTokens[this.baseTokenPos + 1]
1516
- return {type: type && type.replace(/( |^)overlay .*/, ""),
1517
- size: this.baseTokens[this.baseTokenPos] - n}
1518
- };
1519
-
1520
- Context.prototype.nextLine = function () {
1521
- this.line++
1522
- if (this.maxLookAhead > 0) { this.maxLookAhead-- }
1523
- };
1524
-
1525
- Context.fromSaved = function (doc, saved, line) {
1526
- if (saved instanceof SavedContext)
1527
- { return new Context(doc, copyState(doc.mode, saved.state), line, saved.lookAhead) }
1528
- else
1529
- { return new Context(doc, copyState(doc.mode, saved), line) }
1530
- };
1531
-
1532
- Context.prototype.save = function (copy) {
1533
- var state = copy !== false ? copyState(this.doc.mode, this.state) : this.state
1534
- return this.maxLookAhead > 0 ? new SavedContext(state, this.maxLookAhead) : state
1535
- };
1536
-
1537
-
1538
- // Compute a style array (an array starting with a mode generation
1539
- // -- for invalidation -- followed by pairs of end positions and
1540
- // style strings), which is used to highlight the tokens on the
1541
- // line.
1542
- function highlightLine(cm, line, context, forceToEnd) {
1543
- // A styles array always starts with a number identifying the
1544
- // mode/overlays that it is based on (for easy invalidation).
1545
- var st = [cm.state.modeGen], lineClasses = {}
1546
- // Compute the base array of styles
1547
- runMode(cm, line.text, cm.doc.mode, context, function (end, style) { return st.push(end, style); },
1548
- lineClasses, forceToEnd)
1549
- var state = context.state
1550
-
1551
- // Run overlays, adjust style array.
1552
- var loop = function ( o ) {
1553
- context.baseTokens = st
1554
- var overlay = cm.state.overlays[o], i = 1, at = 0
1555
- context.state = true
1556
- runMode(cm, line.text, overlay.mode, context, function (end, style) {
1557
- var start = i
1558
- // Ensure there's a token end at the current position, and that i points at it
1559
- while (at < end) {
1560
- var i_end = st[i]
1561
- if (i_end > end)
1562
- { st.splice(i, 1, end, st[i+1], i_end) }
1563
- i += 2
1564
- at = Math.min(end, i_end)
1565
- }
1566
- if (!style) { return }
1567
- if (overlay.opaque) {
1568
- st.splice(start, i - start, end, "overlay " + style)
1569
- i = start + 2
1570
- } else {
1571
- for (; start < i; start += 2) {
1572
- var cur = st[start+1]
1573
- st[start+1] = (cur ? cur + " " : "") + "overlay " + style
1574
- }
1575
- }
1576
- }, lineClasses)
1577
- context.state = state
1578
- context.baseTokens = null
1579
- context.baseTokenPos = 1
1580
  };
1581
 
1582
- for (var o = 0; o < cm.state.overlays.length; ++o) loop( o );
1583
-
1584
- return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null}
1585
- }
1586
-
1587
- function getLineStyles(cm, line, updateFrontier) {
1588
- if (!line.styles || line.styles[0] != cm.state.modeGen) {
1589
- var context = getContextBefore(cm, lineNo(line))
1590
- var resetState = line.text.length > cm.options.maxHighlightLength && copyState(cm.doc.mode, context.state)
1591
- var result = highlightLine(cm, line, context)
1592
- if (resetState) { context.state = resetState }
1593
- line.stateAfter = context.save(!resetState)
1594
- line.styles = result.styles
1595
- if (result.classes) { line.styleClasses = result.classes }
1596
- else if (line.styleClasses) { line.styleClasses = null }
1597
- if (updateFrontier === cm.doc.highlightFrontier)
1598
- { cm.doc.modeFrontier = Math.max(cm.doc.modeFrontier, ++cm.doc.highlightFrontier) }
1599
- }
1600
- return line.styles
1601
- }
1602
-
1603
- function getContextBefore(cm, n, precise) {
1604
- var doc = cm.doc, display = cm.display
1605
- if (!doc.mode.startState) { return new Context(doc, true, n) }
1606
- var start = findStartLine(cm, n, precise)
1607
- var saved = start > doc.first && getLine(doc, start - 1).stateAfter
1608
- var context = saved ? Context.fromSaved(doc, saved, start) : new Context(doc, startState(doc.mode), start)
1609
-
1610
- doc.iter(start, n, function (line) {
1611
- processLine(cm, line.text, context)
1612
- var pos = context.line
1613
- line.stateAfter = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo ? context.save() : null
1614
- context.nextLine()
1615
- })
1616
- if (precise) { doc.modeFrontier = context.line }
1617
- return context
1618
- }
1619
-
1620
- // Lightweight form of highlight -- proceed over this line and
1621
- // update state, but don't save a style array. Used for lines that
1622
- // aren't currently visible.
1623
- function processLine(cm, text, context, startAt) {
1624
- var mode = cm.doc.mode
1625
- var stream = new StringStream(text, cm.options.tabSize, context)
1626
- stream.start = stream.pos = startAt || 0
1627
- if (text == "") { callBlankLine(mode, context.state) }
1628
- while (!stream.eol()) {
1629
- readToken(mode, stream, context.state)
1630
- stream.start = stream.pos
1631
- }
1632
- }
1633
-
1634
- function callBlankLine(mode, state) {
1635
- if (mode.blankLine) { return mode.blankLine(state) }
1636
- if (!mode.innerMode) { return }
1637
- var inner = innerMode(mode, state)
1638
- if (inner.mode.blankLine) { return inner.mode.blankLine(inner.state) }
1639
- }
1640
-
1641
- function readToken(mode, stream, state, inner) {
1642
- for (var i = 0; i < 10; i++) {
1643
- if (inner) { inner[0] = innerMode(mode, state).mode }
1644
- var style = mode.token(stream, state)
1645
- if (stream.pos > stream.start) { return style }
1646
- }
1647
- throw new Error("Mode " + mode.name + " failed to advance stream.")
1648
- }
1649
-
1650
- var Token = function(stream, type, state) {
1651
- this.start = stream.start; this.end = stream.pos
1652
- this.string = stream.current()
1653
- this.type = type || null
1654
- this.state = state
1655
- };
1656
-
1657
- // Utility for getTokenAt and getLineTokens
1658
- function takeToken(cm, pos, precise, asArray) {
1659
- var doc = cm.doc, mode = doc.mode, style
1660
- pos = clipPos(doc, pos)
1661
- var line = getLine(doc, pos.line), context = getContextBefore(cm, pos.line, precise)
1662
- var stream = new StringStream(line.text, cm.options.tabSize, context), tokens
1663
- if (asArray) { tokens = [] }
1664
- while ((asArray || stream.pos < pos.ch) && !stream.eol()) {
1665
- stream.start = stream.pos
1666
- style = readToken(mode, stream, context.state)
1667
- if (asArray) { tokens.push(new Token(stream, style, copyState(doc.mode, context.state))) }
1668
- }
1669
- return asArray ? tokens : new Token(stream, style, context.state)
1670
- }
1671
-
1672
- function extractLineClasses(type, output) {
1673
- if (type) { for (;;) {
1674
- var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/)
1675
- if (!lineClass) { break }
1676
- type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length)
1677
- var prop = lineClass[1] ? "bgClass" : "textClass"
1678
- if (output[prop] == null)
1679
- { output[prop] = lineClass[2] }
1680
- else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(output[prop]))
1681
- { output[prop] += " " + lineClass[2] }
1682
- } }
1683
- return type
1684
- }
1685
-
1686
- // Run the given mode's parser over a line, calling f for each token.
1687
- function runMode(cm, text, mode, context, f, lineClasses, forceToEnd) {
1688
- var flattenSpans = mode.flattenSpans
1689
- if (flattenSpans == null) { flattenSpans = cm.options.flattenSpans }
1690
- var curStart = 0, curStyle = null
1691
- var stream = new StringStream(text, cm.options.tabSize, context), style
1692
- var inner = cm.options.addModeClass && [null]
1693
- if (text == "") { extractLineClasses(callBlankLine(mode, context.state), lineClasses) }
1694
- while (!stream.eol()) {
1695
- if (stream.pos > cm.options.maxHighlightLength) {
1696
- flattenSpans = false
1697
- if (forceToEnd) { processLine(cm, text, context, stream.pos) }
1698
- stream.pos = text.length
1699
- style = null
1700
- } else {
1701
- style = extractLineClasses(readToken(mode, stream, context.state, inner), lineClasses)
1702
- }
1703
- if (inner) {
1704
- var mName = inner[0].name
1705
- if (mName) { style = "m-" + (style ? mName + " " + style : mName) }
1706
- }
1707
- if (!flattenSpans || curStyle != style) {
1708
- while (curStart < stream.start) {
1709
- curStart = Math.min(stream.start, curStart + 5000)
1710
- f(curStart, curStyle)
1711
- }
1712
- curStyle = style
1713
- }
1714
- stream.start = stream.pos
1715
- }
1716
- while (curStart < stream.pos) {
1717
- // Webkit seems to refuse to render text nodes longer than 57444
1718
- // characters, and returns inaccurate measurements in nodes
1719
- // starting around 5000 chars.
1720
- var pos = Math.min(stream.pos, curStart + 5000)
1721
- f(pos, curStyle)
1722
- curStart = pos
1723
- }
1724
- }
1725
-
1726
- // Finds the line to start with when starting a parse. Tries to
1727
- // find a line with a stateAfter, so that it can start with a
1728
- // valid state. If that fails, it returns the line with the
1729
- // smallest indentation, which tends to need the least context to
1730
- // parse correctly.
1731
- function findStartLine(cm, n, precise) {
1732
- var minindent, minline, doc = cm.doc
1733
- var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100)
1734
- for (var search = n; search > lim; --search) {
1735
- if (search <= doc.first) { return doc.first }
1736
- var line = getLine(doc, search - 1), after = line.stateAfter
1737
- if (after && (!precise || search + (after instanceof SavedContext ? after.lookAhead : 0) <= doc.modeFrontier))
1738
- { return search }
1739
- var indented = countColumn(line.text, null, cm.options.tabSize)
1740
- if (minline == null || minindent > indented) {
1741
- minline = search - 1
1742
- minindent = indented
1743
- }
1744
- }
1745
- return minline
1746
- }
1747
-
1748
- function retreatFrontier(doc, n) {
1749
- doc.modeFrontier = Math.min(doc.modeFrontier, n)
1750
- if (doc.highlightFrontier < n - 10) { return }
1751
- var start = doc.first
1752
- for (var line = n - 1; line > start; line--) {
1753
- var saved = getLine(doc, line).stateAfter
1754
- // change is on 3
1755
- // state on line 1 looked ahead 2 -- so saw 3
1756
- // test 1 + 2 < 3 should cover this
1757
- if (saved && (!(saved instanceof SavedContext) || line + saved.lookAhead < n)) {
1758
- start = line + 1
1759
- break
1760
- }
1761
- }
1762
- doc.highlightFrontier = Math.min(doc.highlightFrontier, start)
1763
- }
1764
-
1765
- // LINE DATA STRUCTURE
1766
-
1767
- // Line objects. These hold state related to a line, including
1768
- // highlighting info (the styles array).
1769
- var Line = function(text, markedSpans, estimateHeight) {
1770
- this.text = text
1771
- attachMarkedSpans(this, markedSpans)
1772
- this.height = estimateHeight ? estimateHeight(this) : 1
1773
- };
1774
-
1775
- Line.prototype.lineNo = function () { return lineNo(this) };
1776
- eventMixin(Line)
1777
-
1778
- // Change the content (text, markers) of a line. Automatically
1779
- // invalidates cached information and tries to re-estimate the
1780
- // line's height.
1781
- function updateLine(line, text, markedSpans, estimateHeight) {
1782
- line.text = text
1783
- if (line.stateAfter) { line.stateAfter = null }
1784
- if (line.styles) { line.styles = null }
1785
- if (line.order != null) { line.order = null }
1786
- detachMarkedSpans(line)
1787
- attachMarkedSpans(line, markedSpans)
1788
- var estHeight = estimateHeight ? estimateHeight(line) : 1
1789
- if (estHeight != line.height) { updateLineHeight(line, estHeight) }
1790
- }
1791
-
1792
- // Detach a line from the document tree and its markers.
1793
- function cleanUpLine(line) {
1794
- line.parent = null
1795
- detachMarkedSpans(line)
1796
- }
1797
-
1798
- // Convert a style as returned by a mode (either null, or a string
1799
- // containing one or more styles) to a CSS style. This is cached,
1800
- // and also looks for line-wide styles.
1801
- var styleToClassCache = {};
1802
- var styleToClassCacheWithMode = {};
1803
- function interpretTokenStyle(style, options) {
1804
- if (!style || /^\s*$/.test(style)) { return null }
1805
- var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache
1806
- return cache[style] ||
1807
- (cache[style] = style.replace(/\S+/g, "cm-$&"))
1808
- }
1809
-
1810
- // Render the DOM representation of the text of a line. Also builds
1811
- // up a 'line map', which points at the DOM nodes that represent
1812
- // specific stretches of text, and is used by the measuring code.
1813
- // The returned object contains the DOM node, this map, and
1814
- // information about line-wide styles that were set by the mode.
1815
- function buildLineContent(cm, lineView) {
1816
- // The padding-right forces the element to have a 'border', which
1817
- // is needed on Webkit to be able to get line-level bounding
1818
- // rectangles for it (in measureChar).
1819
- var content = eltP("span", null, null, webkit ? "padding-right: .1px" : null)
1820
- var builder = {pre: eltP("pre", [content], "CodeMirror-line"), content: content,
1821
- col: 0, pos: 0, cm: cm,
1822
- trailingSpace: false,
1823
- splitSpaces: (ie || webkit) && cm.getOption("lineWrapping")}
1824
- lineView.measure = {}
1825
-
1826
- // Iterate over the logical lines that make up this visual line.
1827
- for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {
1828
- var line = i ? lineView.rest[i - 1] : lineView.line, order = (void 0)
1829
- builder.pos = 0
1830
- builder.addToken = buildToken
1831
- // Optionally wire in some hacks into the token-rendering
1832
- // algorithm, to deal with browser quirks.
1833
- if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line, cm.doc.direction)))
1834
- { builder.addToken = buildTokenBadBidi(builder.addToken, order) }
1835
- builder.map = []
1836
- var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line)
1837
- insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate))
1838
- if (line.styleClasses) {
1839
- if (line.styleClasses.bgClass)
1840
- { builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || "") }
1841
- if (line.styleClasses.textClass)
1842
- { builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || "") }
1843
- }
1844
-
1845
- // Ensure at least a single node is present, for measuring.
1846
- if (builder.map.length == 0)
1847
- { builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))) }
1848
-
1849
- // Store the map and a cache object for the current logical line
1850
- if (i == 0) {
1851
- lineView.measure.map = builder.map
1852
- lineView.measure.cache = {}
1853
- } else {
1854
- ;(lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map)
1855
- ;(lineView.measure.caches || (lineView.measure.caches = [])).push({})
1856
- }
1857
- }
1858
-
1859
- // See issue #2901
1860
- if (webkit) {
1861
- var last = builder.content.lastChild
1862
- if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab")))
1863
- { builder.content.className = "cm-tab-wrap-hack" }
1864
- }
1865
-
1866
- signal(cm, "renderLine", cm, lineView.line, builder.pre)
1867
- if (builder.pre.className)
1868
- { builder.textClass = joinClasses(builder.pre.className, builder.textClass || "") }
1869
-
1870
- return builder
1871
- }
1872
-
1873
- function defaultSpecialCharPlaceholder(ch) {
1874
- var token = elt("span", "\u2022", "cm-invalidchar")
1875
- token.title = "\\u" + ch.charCodeAt(0).toString(16)
1876
- token.setAttribute("aria-label", token.title)
1877
- return token
1878
- }
1879
-
1880
- // Build up the DOM representation for a single token, and add it to
1881
- // the line map. Takes care to render special characters separately.
1882
- function buildToken(builder, text, style, startStyle, endStyle, title, css) {
1883
- if (!text) { return }
1884
- var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text
1885
- var special = builder.cm.state.specialChars, mustWrap = false
1886
- var content
1887
- if (!special.test(text)) {
1888
- builder.col += text.length
1889
- content = document.createTextNode(displayText)
1890
- builder.map.push(builder.pos, builder.pos + text.length, content)
1891
- if (ie && ie_version < 9) { mustWrap = true }
1892
- builder.pos += text.length
1893
- } else {
1894
- content = document.createDocumentFragment()
1895
- var pos = 0
1896
- while (true) {
1897
- special.lastIndex = pos
1898
- var m = special.exec(text)
1899
- var skipped = m ? m.index - pos : text.length - pos
1900
- if (skipped) {
1901
- var txt = document.createTextNode(displayText.slice(pos, pos + skipped))
1902
- if (ie && ie_version < 9) { content.appendChild(elt("span", [txt])) }
1903
- else { content.appendChild(txt) }
1904
- builder.map.push(builder.pos, builder.pos + skipped, txt)
1905
- builder.col += skipped
1906
- builder.pos += skipped
1907
- }
1908
- if (!m) { break }
1909
- pos += skipped + 1
1910
- var txt$1 = (void 0)
1911
- if (m[0] == "\t") {
1912
- var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize
1913
- txt$1 = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"))
1914
- txt$1.setAttribute("role", "presentation")
1915
- txt$1.setAttribute("cm-text", "\t")
1916
- builder.col += tabWidth
1917
- } else if (m[0] == "\r" || m[0] == "\n") {
1918
- txt$1 = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar"))
1919
- txt$1.setAttribute("cm-text", m[0])
1920
- builder.col += 1
1921
- } else {
1922
- txt$1 = builder.cm.options.specialCharPlaceholder(m[0])
1923
- txt$1.setAttribute("cm-text", m[0])
1924
- if (ie && ie_version < 9) { content.appendChild(elt("span", [txt$1])) }
1925
- else { content.appendChild(txt$1) }
1926
- builder.col += 1
1927
- }
1928
- builder.map.push(builder.pos, builder.pos + 1, txt$1)
1929
- builder.pos++
1930
- }
1931
- }
1932
- builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32
1933
- if (style || startStyle || endStyle || mustWrap || css) {
1934
- var fullStyle = style || ""
1935
- if (startStyle) { fullStyle += startStyle }
1936
- if (endStyle) { fullStyle += endStyle }
1937
- var token = elt("span", [content], fullStyle, css)
1938
- if (title) { token.title = title }
1939
- return builder.content.appendChild(token)
1940
- }
1941
- builder.content.appendChild(content)
1942
- }
1943
-
1944
- function splitSpaces(text, trailingBefore) {
1945
- if (text.length > 1 && !/ /.test(text)) { return text }
1946
- var spaceBefore = trailingBefore, result = ""
1947
- for (var i = 0; i < text.length; i++) {
1948
- var ch = text.charAt(i)
1949
- if (ch == " " && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32))
1950
- { ch = "\u00a0" }
1951
- result += ch
1952
- spaceBefore = ch == " "
1953
- }
1954
- return result
1955
- }
1956
-
1957
- // Work around nonsense dimensions being reported for stretches of
1958
- // right-to-left text.
1959
- function buildTokenBadBidi(inner, order) {
1960
- return function (builder, text, style, startStyle, endStyle, title, css) {
1961
- style = style ? style + " cm-force-border" : "cm-force-border"
1962
- var start = builder.pos, end = start + text.length
1963
- for (;;) {
1964
- // Find the part that overlaps with the start of this text
1965
- var part = (void 0)
1966
- for (var i = 0; i < order.length; i++) {
1967
- part = order[i]
1968
- if (part.to > start && part.from <= start) { break }
1969
- }
1970
- if (part.to >= end) { return inner(builder, text, style, startStyle, endStyle, title, css) }
1971
- inner(builder, text.slice(0, part.to - start), style, startStyle, null, title, css)
1972
- startStyle = null
1973
- text = text.slice(part.to - start)
1974
- start = part.to
1975
- }
1976
- }
1977
- }
1978
-
1979
- function buildCollapsedSpan(builder, size, marker, ignoreWidget) {
1980
- var widget = !ignoreWidget && marker.widgetNode
1981
- if (widget) { builder.map.push(builder.pos, builder.pos + size, widget) }
1982
- if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {
1983
- if (!widget)
1984
- { widget = builder.content.appendChild(document.createElement("span")) }
1985
- widget.setAttribute("cm-marker", marker.id)
1986
- }
1987
- if (widget) {
1988
- builder.cm.display.input.setUneditable(widget)
1989
- builder.content.appendChild(widget)
1990
- }
1991
- builder.pos += size
1992
- builder.trailingSpace = false
1993
- }
1994
-
1995
- // Outputs a number of spans to make up a line, taking highlighting
1996
- // and marked text into account.
1997
- function insertLineContent(line, builder, styles) {
1998
- var spans = line.markedSpans, allText = line.text, at = 0
1999
- if (!spans) {
2000
- for (var i$1 = 1; i$1 < styles.length; i$1+=2)
2001
- { builder.addToken(builder, allText.slice(at, at = styles[i$1]), interpretTokenStyle(styles[i$1+1], builder.cm.options)) }
2002
- return
2003
- }
2004
-
2005
- var len = allText.length, pos = 0, i = 1, text = "", style, css
2006
- var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, title, collapsed
2007
- for (;;) {
2008
- if (nextChange == pos) { // Update current marker set
2009
- spanStyle = spanEndStyle = spanStartStyle = title = css = ""
2010
- collapsed = null; nextChange = Infinity
2011
- var foundBookmarks = [], endStyles = (void 0)
2012
- for (var j = 0; j < spans.length; ++j) {
2013
- var sp = spans[j], m = sp.marker
2014
- if (m.type == "bookmark" && sp.from == pos && m.widgetNode) {
2015
- foundBookmarks.push(m)
2016
- } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {
2017
- if (sp.to != null && sp.to != pos && nextChange > sp.to) {
2018
- nextChange = sp.to
2019
- spanEndStyle = ""
2020
- }
2021
- if (m.className) { spanStyle += " " + m.className }
2022
- if (m.css) { css = (css ? css + ";" : "") + m.css }
2023
- if (m.startStyle && sp.from == pos) { spanStartStyle += " " + m.startStyle }
2024
- if (m.endStyle && sp.to == nextChange) { (endStyles || (endStyles = [])).push(m.endStyle, sp.to) }
2025
- if (m.title && !title) { title = m.title }
2026
- if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))
2027
- { collapsed = sp }
2028
- } else if (sp.from > pos && nextChange > sp.from) {
2029
- nextChange = sp.from
2030
- }
2031
- }
2032
- if (endStyles) { for (var j$1 = 0; j$1 < endStyles.length; j$1 += 2)
2033
- { if (endStyles[j$1 + 1] == nextChange) { spanEndStyle += " " + endStyles[j$1] } } }
2034
 
2035
- if (!collapsed || collapsed.from == pos) { for (var j$2 = 0; j$2 < foundBookmarks.length; ++j$2)
2036
- { buildCollapsedSpan(builder, 0, foundBookmarks[j$2]) } }
2037
- if (collapsed && (collapsed.from || 0) == pos) {
2038
- buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,
2039
- collapsed.marker, collapsed.from == null)
2040
- if (collapsed.to == null) { return }
2041
- if (collapsed.to == pos) { collapsed = false }
2042
- }
 
2043
  }
2044
- if (pos >= len) { break }
2045
-
2046
- var upto = Math.min(len, nextChange)
2047
- while (true) {
2048
- if (text) {
2049
- var end = pos + text.length
2050
- if (!collapsed) {
2051
- var tokenText = end > upto ? text.slice(0, upto - pos) : text
2052
- builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,
2053
- spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", title, css)
2054
- }
2055
- if (end >= upto) {text = text.slice(upto - pos); pos = upto; break}
2056
- pos = end
2057
- spanStartStyle = ""
2058
- }
2059
- text = allText.slice(at, at = styles[i++])
2060
- style = interpretTokenStyle(styles[i++], builder.cm.options)
2061
- }
2062
- }
2063
- }
2064
-
2065
-
2066
- // These objects are used to represent the visible (currently drawn)
2067
- // part of the document. A LineView may correspond to multiple
2068
- // logical lines, if those are connected by collapsed ranges.
2069
- function LineView(doc, line, lineN) {
2070
- // The starting line
2071
- this.line = line
2072
- // Continuing lines, if any
2073
- this.rest = visualLineContinued(line)
2074
- // Number of logical lines in this visual line
2075
- this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1
2076
- this.node = this.text = null
2077
- this.hidden = lineIsHidden(doc, line)
2078
- }
2079
-
2080
- // Create a range of LineView objects for the given lines.
2081
- function buildViewArray(cm, from, to) {
2082
- var array = [], nextPos
2083
- for (var pos = from; pos < to; pos = nextPos) {
2084
- var view = new LineView(cm.doc, getLine(cm.doc, pos), pos)
2085
- nextPos = pos + view.size
2086
- array.push(view)
2087
- }
2088
- return array
2089
- }
2090
-
2091
- var operationGroup = null
2092
-
2093
- function pushOperation(op) {
2094
- if (operationGroup) {
2095
- operationGroup.ops.push(op)
2096
- } else {
2097
- op.ownsGroup = operationGroup = {
2098
- ops: [op],
2099
- delayedCallbacks: []
2100
- }
2101
- }
2102
- }
2103
-
2104
- function fireCallbacksForOps(group) {
2105
- // Calls delayed callbacks and cursorActivity handlers until no
2106
- // new ones appear
2107
- var callbacks = group.delayedCallbacks, i = 0
2108
- do {
2109
- for (; i < callbacks.length; i++)
2110
- { callbacks[i].call(null) }
2111
- for (var j = 0; j < group.ops.length; j++) {
2112
- var op = group.ops[j]
2113
- if (op.cursorActivityHandlers)
2114
- { while (op.cursorActivityCalled < op.cursorActivityHandlers.length)
2115
- { op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm) } }
2116
- }
2117
- } while (i < callbacks.length)
2118
- }
2119
-
2120
- function finishOperation(op, endCb) {
2121
- var group = op.ownsGroup
2122
- if (!group) { return }
2123
-
2124
- try { fireCallbacksForOps(group) }
2125
- finally {
2126
- operationGroup = null
2127
- endCb(group)
2128
- }
2129
- }
2130
-
2131
- var orphanDelayedCallbacks = null
2132
-
2133
- // Often, we want to signal events at a point where we are in the
2134
- // middle of some work, but don't want the handler to start calling
2135
- // other methods on the editor, which might be in an inconsistent
2136
- // state or simply not expect any other events to happen.
2137
- // signalLater looks whether there are any handlers, and schedules
2138
- // them to be executed when the last operation ends, or, if no
2139
- // operation is active, when a timeout fires.
2140
- function signalLater(emitter, type /*, values...*/) {
2141
- var arr = getHandlers(emitter, type)
2142
- if (!arr.length) { return }
2143
- var args = Array.prototype.slice.call(arguments, 2), list
2144
- if (operationGroup) {
2145
- list = operationGroup.delayedCallbacks
2146
- } else if (orphanDelayedCallbacks) {
2147
- list = orphanDelayedCallbacks
2148
- } else {
2149
- list = orphanDelayedCallbacks = []
2150
- setTimeout(fireOrphanDelayed, 0)
2151
- }
2152
- var loop = function ( i ) {
2153
- list.push(function () { return arr[i].apply(null, args); })
2154
- };
2155
-
2156
- for (var i = 0; i < arr.length; ++i)
2157
- loop( i );
2158
- }
2159
-
2160
- function fireOrphanDelayed() {
2161
- var delayed = orphanDelayedCallbacks
2162
- orphanDelayedCallbacks = null
2163
- for (var i = 0; i < delayed.length; ++i) { delayed[i]() }
2164
- }
2165
-
2166
- // When an aspect of a line changes, a string is added to
2167
- // lineView.changes. This updates the relevant part of the line's
2168
- // DOM structure.
2169
- function updateLineForChanges(cm, lineView, lineN, dims) {
2170
- for (var j = 0; j < lineView.changes.length; j++) {
2171
- var type = lineView.changes[j]
2172
- if (type == "text") { updateLineText(cm, lineView) }
2173
- else if (type == "gutter") { updateLineGutter(cm, lineView, lineN, dims) }
2174
- else if (type == "class") { updateLineClasses(cm, lineView) }
2175
- else if (type == "widget") { updateLineWidgets(cm, lineView, dims) }
2176
- }
2177
- lineView.changes = null
2178
- }
2179
-
2180
- // Lines with gutter elements, widgets or a background class need to
2181
- // be wrapped, and have the extra elements added to the wrapper div
2182
- function ensureLineWrapped(lineView) {
2183
- if (lineView.node == lineView.text) {
2184
- lineView.node = elt("div", null, null, "position: relative")
2185
- if (lineView.text.parentNode)
2186
- { lineView.text.parentNode.replaceChild(lineView.node, lineView.text) }
2187
- lineView.node.appendChild(lineView.text)
2188
- if (ie && ie_version < 8) { lineView.node.style.zIndex = 2 }
2189
- }
2190
- return lineView.node
2191
- }
2192
-
2193
- function updateLineBackground(cm, lineView) {
2194
- var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass
2195
- if (cls) { cls += " CodeMirror-linebackground" }
2196
- if (lineView.background) {
2197
- if (cls) { lineView.background.className = cls }
2198
- else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null }
2199
- } else if (cls) {
2200
- var wrap = ensureLineWrapped(lineView)
2201
- lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild)
2202
- cm.display.input.setUneditable(lineView.background)
2203
- }
2204
- }
2205
-
2206
- // Wrapper around buildLineContent which will reuse the structure
2207
- // in display.externalMeasured when possible.
2208
- function getLineContent(cm, lineView) {
2209
- var ext = cm.display.externalMeasured
2210
- if (ext && ext.line == lineView.line) {
2211
- cm.display.externalMeasured = null
2212
- lineView.measure = ext.measure
2213
- return ext.built
2214
- }
2215
- return buildLineContent(cm, lineView)
2216
- }
2217
-
2218
- // Redraw the line's text. Interacts with the background and text
2219
- // classes because the mode may output tokens that influence these
2220
- // classes.
2221
- function updateLineText(cm, lineView) {
2222
- var cls = lineView.text.className
2223
- var built = getLineContent(cm, lineView)
2224
- if (lineView.text == lineView.node) { lineView.node = built.pre }
2225
- lineView.text.parentNode.replaceChild(built.pre, lineView.text)
2226
- lineView.text = built.pre
2227
- if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {
2228
- lineView.bgClass = built.bgClass
2229
- lineView.textClass = built.textClass
2230
- updateLineClasses(cm, lineView)
2231
- } else if (cls) {
2232
- lineView.text.className = cls
2233
- }
2234
- }
2235
-
2236
- function updateLineClasses(cm, lineView) {
2237
- updateLineBackground(cm, lineView)
2238
- if (lineView.line.wrapClass)
2239
- { ensureLineWrapped(lineView).className = lineView.line.wrapClass }
2240
- else if (lineView.node != lineView.text)
2241
- { lineView.node.className = "" }
2242
- var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass
2243
- lineView.text.className = textClass || ""
2244
- }
2245
-
2246
- function updateLineGutter(cm, lineView, lineN, dims) {
2247
- if (lineView.gutter) {
2248
- lineView.node.removeChild(lineView.gutter)
2249
- lineView.gutter = null
2250
- }
2251
- if (lineView.gutterBackground) {
2252
- lineView.node.removeChild(lineView.gutterBackground)
2253
- lineView.gutterBackground = null
2254
- }
2255
- if (lineView.line.gutterClass) {
2256
- var wrap = ensureLineWrapped(lineView)
2257
- lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass,
2258
- ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px; width: " + (dims.gutterTotalWidth) + "px"))
2259
- cm.display.input.setUneditable(lineView.gutterBackground)
2260
- wrap.insertBefore(lineView.gutterBackground, lineView.text)
2261
- }
2262
- var markers = lineView.line.gutterMarkers
2263
- if (cm.options.lineNumbers || markers) {
2264
- var wrap$1 = ensureLineWrapped(lineView)
2265
- var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px"))
2266
- cm.display.input.setUneditable(gutterWrap)
2267
- wrap$1.insertBefore(gutterWrap, lineView.text)
2268
- if (lineView.line.gutterClass)
2269
- { gutterWrap.className += " " + lineView.line.gutterClass }
2270
- if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"]))
2271
- { lineView.lineNumber = gutterWrap.appendChild(
2272
- elt("div", lineNumberFor(cm.options, lineN),
2273
- "CodeMirror-linenumber CodeMirror-gutter-elt",
2274
- ("left: " + (dims.gutterLeft["CodeMirror-linenumbers"]) + "px; width: " + (cm.display.lineNumInnerWidth) + "px"))) }
2275
- if (markers) { for (var k = 0; k < cm.options.gutters.length; ++k) {
2276
- var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id]
2277
- if (found)
2278
- { gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt",
2279
- ("left: " + (dims.gutterLeft[id]) + "px; width: " + (dims.gutterWidth[id]) + "px"))) }
2280
- } }
2281
  }
2282
- }
2283
-
2284
- function updateLineWidgets(cm, lineView, dims) {
2285
- if (lineView.alignable) { lineView.alignable = null }
2286
- for (var node = lineView.node.firstChild, next = (void 0); node; node = next) {
2287
- next = node.nextSibling
2288
- if (node.className == "CodeMirror-linewidget")
2289
- { lineView.node.removeChild(node) }
2290
- }
2291
- insertLineWidgets(cm, lineView, dims)
2292
- }
2293
-
2294
- // Build a line's DOM representation from scratch
2295
- function buildLineElement(cm, lineView, lineN, dims) {
2296
- var built = getLineContent(cm, lineView)
2297
- lineView.text = lineView.node = built.pre
2298
- if (built.bgClass) { lineView.bgClass = built.bgClass }
2299
- if (built.textClass) { lineView.textClass = built.textClass }
2300
-
2301
- updateLineClasses(cm, lineView)
2302
- updateLineGutter(cm, lineView, lineN, dims)
2303
- insertLineWidgets(cm, lineView, dims)
2304
- return lineView.node
2305
- }
2306
-
2307
- // A lineView may contain multiple logical lines (when merged by
2308
- // collapsed spans). The widgets for all of them need to be drawn.
2309
- function insertLineWidgets(cm, lineView, dims) {
2310
- insertLineWidgetsFor(cm, lineView.line, lineView, dims, true)
2311
- if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)
2312
- { insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false) } }
2313
- }
2314
-
2315
- function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {
2316
- if (!line.widgets) { return }
2317
- var wrap = ensureLineWrapped(lineView)
2318
- for (var i = 0, ws = line.widgets; i < ws.length; ++i) {
2319
- var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget")
2320
- if (!widget.handleMouseEvents) { node.setAttribute("cm-ignore-events", "true") }
2321
- positionLineWidget(widget, node, lineView, dims)
2322
- cm.display.input.setUneditable(node)
2323
- if (allowAbove && widget.above)
2324
- { wrap.insertBefore(node, lineView.gutter || lineView.text) }
2325
- else
2326
- { wrap.appendChild(node) }
2327
- signalLater(widget, "redraw")
2328
- }
2329
- }
2330
-
2331
- function positionLineWidget(widget, node, lineView, dims) {
2332
- if (widget.noHScroll) {
2333
- ;(lineView.alignable || (lineView.alignable = [])).push(node)
2334
- var width = dims.wrapperWidth
2335
- node.style.left = dims.fixedPos + "px"
2336
- if (!widget.coverGutter) {
2337
- width -= dims.gutterTotalWidth
2338
- node.style.paddingLeft = dims.gutterTotalWidth + "px"
2339
- }
2340
- node.style.width = width + "px"
2341
- }
2342
- if (widget.coverGutter) {
2343
- node.style.zIndex = 5
2344
- node.style.position = "relative"
2345
- if (!widget.noHScroll) { node.style.marginLeft = -dims.gutterTotalWidth + "px" }
2346
- }
2347
- }
2348
-
2349
- function widgetHeight(widget) {
2350
- if (widget.height != null) { return widget.height }
2351
- var cm = widget.doc.cm
2352
- if (!cm) { return 0 }
2353
- if (!contains(document.body, widget.node)) {
2354
- var parentStyle = "position: relative;"
2355
- if (widget.coverGutter)
2356
- { parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;" }
2357
- if (widget.noHScroll)
2358
- { parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;" }
2359
- removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle))
2360
- }
2361
- return widget.height = widget.node.parentNode.offsetHeight
2362
- }
2363
-
2364
- // Return true when the given mouse event happened in a widget
2365
- function eventInWidget(display, e) {
2366
- for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {
2367
- if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") ||
2368
- (n.parentNode == display.sizer && n != display.mover))
2369
- { return true }
2370
  }
2371
- }
2372
-
2373
- // POSITION MEASUREMENT
2374
-
2375
- function paddingTop(display) {return display.lineSpace.offsetTop}
2376
- function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight}
2377
- function paddingH(display) {
2378
- if (display.cachedPaddingH) { return display.cachedPaddingH }
2379
- var e = removeChildrenAndAdd(display.measure, elt("pre", "x"))
2380
- var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle
2381
- var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)}
2382
- if (!isNaN(data.left) && !isNaN(data.right)) { display.cachedPaddingH = data }
2383
- return data
2384
- }
2385
-
2386
- function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth }
2387
- function displayWidth(cm) {
2388
- return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth
2389
- }
2390
- function displayHeight(cm) {
2391
- return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight
2392
- }
2393
-
2394
- // Ensure the lineView.wrapping.heights array is populated. This is
2395
- // an array of bottom offsets for the lines that make up a drawn
2396
- // line. When lineWrapping is on, there might be more than one
2397
- // height.
2398
- function ensureLineHeights(cm, lineView, rect) {
2399
- var wrapping = cm.options.lineWrapping
2400
- var curWidth = wrapping && displayWidth(cm)
2401
- if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {
2402
- var heights = lineView.measure.heights = []
2403
- if (wrapping) {
2404
- lineView.measure.width = curWidth
2405
- var rects = lineView.text.firstChild.getClientRects()
2406
- for (var i = 0; i < rects.length - 1; i++) {
2407
- var cur = rects[i], next = rects[i + 1]
2408
- if (Math.abs(cur.bottom - next.bottom) > 2)
2409
- { heights.push((cur.bottom + next.top) / 2 - rect.top) }
2410
- }
2411
- }
2412
- heights.push(rect.bottom - rect.top)
2413
- }
2414
- }
2415
-
2416
- // Find a line map (mapping character offsets to text nodes) and a
2417
- // measurement cache for the given line number. (A line view might
2418
- // contain multiple lines when collapsed ranges are present.)
2419
- function mapFromLineView(lineView, line, lineN) {
2420
- if (lineView.line == line)
2421
- { return {map: lineView.measure.map, cache: lineView.measure.cache} }
2422
- for (var i = 0; i < lineView.rest.length; i++)
2423
- { if (lineView.rest[i] == line)
2424
- { return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]} } }
2425
- for (var i$1 = 0; i$1 < lineView.rest.length; i$1++)
2426
- { if (lineNo(lineView.rest[i$1]) > lineN)
2427
- { return {map: lineView.measure.maps[i$1], cache: lineView.measure.caches[i$1], before: true} } }
2428
- }
2429
-
2430
- // Render a line into the hidden node display.externalMeasured. Used
2431
- // when measurement is needed for a line that's not in the viewport.
2432
- function updateExternalMeasurement(cm, line) {
2433
- line = visualLine(line)
2434
- var lineN = lineNo(line)
2435
- var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN)
2436
- view.lineN = lineN
2437
- var built = view.built = buildLineContent(cm, view)
2438
- view.text = built.pre
2439
- removeChildrenAndAdd(cm.display.lineMeasure, built.pre)
2440
- return view
2441
- }
2442
-
2443
- // Get a {top, bottom, left, right} box (in line-local coordinates)
2444
- // for a given character.
2445
- function measureChar(cm, line, ch, bias) {
2446
- return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias)
2447
- }
2448
-
2449
- // Find a line view that corresponds to the given line number.
2450
- function findViewForLine(cm, lineN) {
2451
- if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)
2452
- { return cm.display.view[findViewIndex(cm, lineN)] }
2453
- var ext = cm.display.externalMeasured
2454
- if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)
2455
- { return ext }
2456
- }
2457
-
2458
- // Measurement can be split in two steps, the set-up work that
2459
- // applies to the whole line, and the measurement of the actual
2460
- // character. Functions like coordsChar, that need to do a lot of
2461
- // measurements in a row, can thus ensure that the set-up work is
2462
- // only done once.
2463
- function prepareMeasureForLine(cm, line) {
2464
- var lineN = lineNo(line)
2465
- var view = findViewForLine(cm, lineN)
2466
- if (view && !view.text) {
2467
- view = null
2468
- } else if (view && view.changes) {
2469
- updateLineForChanges(cm, view, lineN, getDimensions(cm))
2470
- cm.curOp.forceUpdate = true
2471
- }
2472
- if (!view)
2473
- { view = updateExternalMeasurement(cm, line) }
2474
-
2475
- var info = mapFromLineView(view, line, lineN)
2476
- return {
2477
- line: line, view: view, rect: null,
2478
- map: info.map, cache: info.cache, before: info.before,
2479
- hasHeights: false
2480
- }
2481
- }
2482
-
2483
- // Given a prepared measurement object, measures the position of an
2484
- // actual character (or fetches it from the cache).
2485
- function measureCharPrepared(cm, prepared, ch, bias, varHeight) {
2486
- if (prepared.before) { ch = -1 }
2487
- var key = ch + (bias || ""), found
2488
- if (prepared.cache.hasOwnProperty(key)) {
2489
- found = prepared.cache[key]
2490
- } else {
2491
- if (!prepared.rect)
2492
- { prepared.rect = prepared.view.text.getBoundingClientRect() }
2493
- if (!prepared.hasHeights) {
2494
- ensureLineHeights(cm, prepared.view, prepared.rect)
2495
- prepared.hasHeights = true
2496
- }
2497
- found = measureCharInner(cm, prepared, ch, bias)
2498
- if (!found.bogus) { prepared.cache[key] = found }
2499
- }
2500
- return {left: found.left, right: found.right,
2501
- top: varHeight ? found.rtop : found.top,
2502
- bottom: varHeight ? found.rbottom : found.bottom}
2503
- }
2504
-
2505
- var nullRect = {left: 0, right: 0, top: 0, bottom: 0}
2506
-
2507
- function nodeAndOffsetInLineMap(map, ch, bias) {
2508
- var node, start, end, collapse, mStart, mEnd
2509
- // First, search the line map for the text node corresponding to,
2510
- // or closest to, the target character.
2511
- for (var i = 0; i < map.length; i += 3) {
2512
- mStart = map[i]
2513
- mEnd = map[i + 1]
2514
- if (ch < mStart) {
2515
- start = 0; end = 1
2516
- collapse = "left"
2517
- } else if (ch < mEnd) {
2518
- start = ch - mStart
2519
- end = start + 1
2520
- } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) {
2521
- end = mEnd - mStart
2522
- start = end - 1
2523
- if (ch >= mEnd) { collapse = "right" }
2524
- }
2525
- if (start != null) {
2526
- node = map[i + 2]
2527
- if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right"))
2528
- { collapse = bias }
2529
- if (bias == "left" && start == 0)
2530
- { while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {
2531
- node = map[(i -= 3) + 2]
2532
- collapse = "left"
2533
- } }
2534
- if (bias == "right" && start == mEnd - mStart)
2535
- { while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) {
2536
- node = map[(i += 3) + 2]
2537
- collapse = "right"
2538
- } }
2539
- break
2540
- }
2541
- }
2542
- return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd}
2543
- }
2544
-
2545
- function getUsefulRect(rects, bias) {
2546
- var rect = nullRect
2547
- if (bias == "left") { for (var i = 0; i < rects.length; i++) {
2548
- if ((rect = rects[i]).left != rect.right) { break }
2549
- } } else { for (var i$1 = rects.length - 1; i$1 >= 0; i$1--) {
2550
- if ((rect = rects[i$1]).left != rect.right) { break }
2551
- } }
2552
- return rect
2553
- }
2554
-
2555
- function measureCharInner(cm, prepared, ch, bias) {
2556
- var place = nodeAndOffsetInLineMap(prepared.map, ch, bias)
2557
- var node = place.node, start = place.start, end = place.end, collapse = place.collapse
2558
-
2559
- var rect
2560
- if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.
2561
- for (var i$1 = 0; i$1 < 4; i$1++) { // Retry a maximum of 4 times when nonsense rectangles are returned
2562
- while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) { --start }
2563
- while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) { ++end }
2564
- if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart)
2565
- { rect = node.parentNode.getBoundingClientRect() }
2566
- else
2567
- { rect = getUsefulRect(range(node, start, end).getClientRects(), bias) }
2568
- if (rect.left || rect.right || start == 0) { break }
2569
- end = start
2570
- start = start - 1
2571
- collapse = "right"
2572
- }
2573
- if (ie && ie_version < 11) { rect = maybeUpdateRectForZooming(cm.display.measure, rect) }
2574
- } else { // If it is a widget, simply get the box for the whole widget.
2575
- if (start > 0) { collapse = bias = "right" }
2576
- var rects
2577
- if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)
2578
- { rect = rects[bias == "right" ? rects.length - 1 : 0] }
2579
- else
2580
- { rect = node.getBoundingClientRect() }
2581
  }
2582
- if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {
2583
- var rSpan = node.parentNode.getClientRects()[0]
2584
- if (rSpan)
2585
- { rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom} }
2586
- else
2587
- { rect = nullRect }
2588
- }
2589
-
2590
- var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top
2591
- var mid = (rtop + rbot) / 2
2592
- var heights = prepared.view.measure.heights
2593
- var i = 0
2594
- for (; i < heights.length - 1; i++)
2595
- { if (mid < heights[i]) { break } }
2596
- var top = i ? heights[i - 1] : 0, bot = heights[i]
2597
- var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left,
2598
- right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left,
2599
- top: top, bottom: bot}
2600
- if (!rect.left && !rect.right) { result.bogus = true }
2601
- if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot }
2602
-
2603
- return result
2604
- }
2605
-
2606
- // Work around problem with bounding client rects on ranges being
2607
- // returned incorrectly when zoomed on IE10 and below.
2608
- function maybeUpdateRectForZooming(measure, rect) {
2609
- if (!window.screen || screen.logicalXDPI == null ||
2610
- screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))
2611
- { return rect }
2612
- var scaleX = screen.logicalXDPI / screen.deviceXDPI
2613
- var scaleY = screen.logicalYDPI / screen.deviceYDPI
2614
- return {left: rect.left * scaleX, right: rect.right * scaleX,
2615
- top: rect.top * scaleY, bottom: rect.bottom * scaleY}
2616
- }
2617
-
2618
- function clearLineMeasurementCacheFor(lineView) {
2619
- if (lineView.measure) {
2620
- lineView.measure.cache = {}
2621
- lineView.measure.heights = null
2622
- if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)
2623
- { lineView.measure.caches[i] = {} } }
2624
- }
2625
- }
2626
-
2627
- function clearLineMeasurementCache(cm) {
2628
- cm.display.externalMeasure = null
2629
- removeChildren(cm.display.lineMeasure)
2630
- for (var i = 0; i < cm.display.view.length; i++)
2631
- { clearLineMeasurementCacheFor(cm.display.view[i]) }
2632
- }
2633
-
2634
- function clearCaches(cm) {
2635
- clearLineMeasurementCache(cm)
2636
- cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null
2637
- if (!cm.options.lineWrapping) { cm.display.maxLineChanged = true }
2638
- cm.display.lineNumChars = null
2639
- }
2640
-
2641
- function pageScrollX() {
2642
- // Work around https://bugs.chromium.org/p/chromium/issues/detail?id=489206
2643
- // which causes page_Offset and bounding client rects to use
2644
- // different reference viewports and invalidate our calculations.
2645
- if (chrome && android) { return -(document.body.getBoundingClientRect().left - parseInt(getComputedStyle(document.body).marginLeft)) }
2646
- return window.pageXOffset || (document.documentElement || document.body).scrollLeft
2647
- }
2648
- function pageScrollY() {
2649
- if (chrome && android) { return -(document.body.getBoundingClientRect().top - parseInt(getComputedStyle(document.body).marginTop)) }
2650
- return window.pageYOffset || (document.documentElement || document.body).scrollTop
2651
- }
2652
-
2653
- function widgetTopHeight(lineObj) {
2654
- var height = 0
2655
- if (lineObj.widgets) { for (var i = 0; i < lineObj.widgets.length; ++i) { if (lineObj.widgets[i].above)
2656
- { height += widgetHeight(lineObj.widgets[i]) } } }
2657
- return height
2658
- }
2659
-
2660
- // Converts a {top, bottom, left, right} box from line-local
2661
- // coordinates into another coordinate system. Context may be one of
2662
- // "line", "div" (display.lineDiv), "local"./null (editor), "window",
2663
- // or "page".
2664
- function intoCoordSystem(cm, lineObj, rect, context, includeWidgets) {
2665
- if (!includeWidgets) {
2666
- var height = widgetTopHeight(lineObj)
2667
- rect.top += height; rect.bottom += height
2668
- }
2669
- if (context == "line") { return rect }
2670
- if (!context) { context = "local" }
2671
- var yOff = heightAtLine(lineObj)
2672
- if (context == "local") { yOff += paddingTop(cm.display) }
2673
- else { yOff -= cm.display.viewOffset }
2674
- if (context == "page" || context == "window") {
2675
- var lOff = cm.display.lineSpace.getBoundingClientRect()
2676
- yOff += lOff.top + (context == "window" ? 0 : pageScrollY())
2677
- var xOff = lOff.left + (context == "window" ? 0 : pageScrollX())
2678
- rect.left += xOff; rect.right += xOff
2679
- }
2680
- rect.top += yOff; rect.bottom += yOff
2681
- return rect
2682
- }
2683
-
2684
- // Coverts a box from "div" coords to another coordinate system.
2685
- // Context may be "window", "page", "div", or "local"./null.
2686
- function fromCoordSystem(cm, coords, context) {
2687
- if (context == "div") { return coords }
2688
- var left = coords.left, top = coords.top
2689
- // First move into "page" coordinate system
2690
- if (context == "page") {
2691
- left -= pageScrollX()
2692
- top -= pageScrollY()
2693
- } else if (context == "local" || !context) {
2694
- var localBox = cm.display.sizer.getBoundingClientRect()
2695
- left += localBox.left
2696
- top += localBox.top
2697
- }
2698
-
2699
- var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect()
2700
- return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top}
2701
- }
2702
-
2703
- function charCoords(cm, pos, context, lineObj, bias) {
2704
- if (!lineObj) { lineObj = getLine(cm.doc, pos.line) }
2705
- return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context)
2706
- }
2707
-
2708
- // Returns a box for a given cursor position, which may have an
2709
- // 'other' property containing the position of the secondary cursor
2710
- // on a bidi boundary.
2711
- // A cursor Pos(line, char, "before") is on the same visual line as `char - 1`
2712
- // and after `char - 1` in writing order of `char - 1`
2713
- // A cursor Pos(line, char, "after") is on the same visual line as `char`
2714
- // and before `char` in writing order of `char`
2715
- // Examples (upper-case letters are RTL, lower-case are LTR):
2716
- // Pos(0, 1, ...)
2717
- // before after
2718
- // ab a|b a|b
2719
- // aB a|B aB|
2720
- // Ab |Ab A|b
2721
- // AB B|A B|A
2722
- // Every position after the last character on a line is considered to stick
2723
- // to the last character on the line.
2724
- function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {
2725
- lineObj = lineObj || getLine(cm.doc, pos.line)
2726
- if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj) }
2727
- function get(ch, right) {
2728
- var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight)
2729
- if (right) { m.left = m.right; } else { m.right = m.left }
2730
- return intoCoordSystem(cm, lineObj, m, context)
2731
- }
2732
- var order = getOrder(lineObj, cm.doc.direction), ch = pos.ch, sticky = pos.sticky
2733
- if (ch >= lineObj.text.length) {
2734
- ch = lineObj.text.length
2735
- sticky = "before"
2736
- } else if (ch <= 0) {
2737
- ch = 0
2738
- sticky = "after"
2739
- }
2740
- if (!order) { return get(sticky == "before" ? ch - 1 : ch, sticky == "before") }
2741
-
2742
- function getBidi(ch, partPos, invert) {
2743
- var part = order[partPos], right = part.level == 1
2744
- return get(invert ? ch - 1 : ch, right != invert)
2745
- }
2746
- var partPos = getBidiPartAt(order, ch, sticky)
2747
- var other = bidiOther
2748
- var val = getBidi(ch, partPos, sticky == "before")
2749
- if (other != null) { val.other = getBidi(ch, other, sticky != "before") }
2750
- return val
2751
- }
2752
-
2753
- // Used to cheaply estimate the coordinates for a position. Used for
2754
- // intermediate scroll updates.
2755
- function estimateCoords(cm, pos) {
2756
- var left = 0
2757
- pos = clipPos(cm.doc, pos)
2758
- if (!cm.options.lineWrapping) { left = charWidth(cm.display) * pos.ch }
2759
- var lineObj = getLine(cm.doc, pos.line)
2760
- var top = heightAtLine(lineObj) + paddingTop(cm.display)
2761
- return {left: left, right: left, top: top, bottom: top + lineObj.height}
2762
- }
2763
-
2764
- // Positions returned by coordsChar contain some extra information.
2765
- // xRel is the relative x position of the input coordinates compared
2766
- // to the found position (so xRel > 0 means the coordinates are to
2767
- // the right of the character position, for example). When outside
2768
- // is true, that means the coordinates lie outside the line's
2769
- // vertical range.
2770
- function PosWithInfo(line, ch, sticky, outside, xRel) {
2771
- var pos = Pos(line, ch, sticky)
2772
- pos.xRel = xRel
2773
- if (outside) { pos.outside = true }
2774
- return pos
2775
- }
2776
-
2777
- // Compute the character position closest to the given coordinates.
2778
- // Input must be lineSpace-local ("div" coordinate system).
2779
- function coordsChar(cm, x, y) {
2780
- var doc = cm.doc
2781
- y += cm.display.viewOffset
2782
- if (y < 0) { return PosWithInfo(doc.first, 0, null, true, -1) }
2783
- var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1
2784
- if (lineN > last)
2785
- { return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, null, true, 1) }
2786
- if (x < 0) { x = 0 }
2787
-
2788
- var lineObj = getLine(doc, lineN)
2789
- for (;;) {
2790
- var found = coordsCharInner(cm, lineObj, lineN, x, y)
2791
- var collapsed = collapsedSpanAround(lineObj, found.ch + (found.xRel > 0 ? 1 : 0))
2792
- if (!collapsed) { return found }
2793
- var rangeEnd = collapsed.find(1)
2794
- if (rangeEnd.line == lineN) { return rangeEnd }
2795
- lineObj = getLine(doc, lineN = rangeEnd.line)
2796
- }
2797
- }
2798
-
2799
- function wrappedLineExtent(cm, lineObj, preparedMeasure, y) {
2800
- y -= widgetTopHeight(lineObj)
2801
- var end = lineObj.text.length
2802
- var begin = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch - 1).bottom <= y; }, end, 0)
2803
- end = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch).top > y; }, begin, end)
2804
- return {begin: begin, end: end}
2805
- }
2806
-
2807
- function wrappedLineExtentChar(cm, lineObj, preparedMeasure, target) {
2808
- if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj) }
2809
- var targetTop = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, target), "line").top
2810
- return wrappedLineExtent(cm, lineObj, preparedMeasure, targetTop)
2811
- }
2812
-
2813
- // Returns true if the given side of a box is after the given
2814
- // coordinates, in top-to-bottom, left-to-right order.
2815
- function boxIsAfter(box, x, y, left) {
2816
- return box.bottom <= y ? false : box.top > y ? true : (left ? box.left : box.right) > x
2817
- }
2818
-
2819
- function coordsCharInner(cm, lineObj, lineNo, x, y) {
2820
- // Move y into line-local coordinate space
2821
- y -= heightAtLine(lineObj)
2822
- var preparedMeasure = prepareMeasureForLine(cm, lineObj)
2823
- // When directly calling `measureCharPrepared`, we have to adjust
2824
- // for the widgets at this line.
2825
- var widgetHeight = widgetTopHeight(lineObj)
2826
- var begin = 0, end = lineObj.text.length, ltr = true
2827
-
2828
- var order = getOrder(lineObj, cm.doc.direction)
2829
- // If the line isn't plain left-to-right text, first figure out
2830
- // which bidi section the coordinates fall into.
2831
- if (order) {
2832
- var part = (cm.options.lineWrapping ? coordsBidiPartWrapped : coordsBidiPart)
2833
- (cm, lineObj, lineNo, preparedMeasure, order, x, y)
2834
- ltr = part.level != 1
2835
- // The awkward -1 offsets are needed because findFirst (called
2836
- // on these below) will treat its first bound as inclusive,
2837
- // second as exclusive, but we want to actually address the
2838
- // characters in the part's range
2839
- begin = ltr ? part.from : part.to - 1
2840
- end = ltr ? part.to : part.from - 1
2841
- }
2842
-
2843
- // A binary search to find the first character whose bounding box
2844
- // starts after the coordinates. If we run across any whose box wrap
2845
- // the coordinates, store that.
2846
- var chAround = null, boxAround = null
2847
- var ch = findFirst(function (ch) {
2848
- var box = measureCharPrepared(cm, preparedMeasure, ch)
2849
- box.top += widgetHeight; box.bottom += widgetHeight
2850
- if (!boxIsAfter(box, x, y, false)) { return false }
2851
- if (box.top <= y && box.left <= x) {
2852
- chAround = ch
2853
- boxAround = box
2854
- }
2855
- return true
2856
- }, begin, end)
2857
-
2858
- var baseX, sticky, outside = false
2859
- // If a box around the coordinates was found, use that
2860
- if (boxAround) {
2861
- // Distinguish coordinates nearer to the left or right side of the box
2862
- var atLeft = x - boxAround.left < boxAround.right - x, atStart = atLeft == ltr
2863
- ch = chAround + (atStart ? 0 : 1)
2864
- sticky = atStart ? "after" : "before"
2865
- baseX = atLeft ? boxAround.left : boxAround.right
2866
- } else {
2867
- // (Adjust for extended bound, if necessary.)
2868
- if (!ltr && (ch == end || ch == begin)) { ch++ }
2869
- // To determine which side to associate with, get the box to the
2870
- // left of the character and compare it's vertical position to the
2871
- // coordinates
2872
- sticky = ch == 0 ? "after" : ch == lineObj.text.length ? "before" :
2873
- (measureCharPrepared(cm, preparedMeasure, ch - (ltr ? 1 : 0)).bottom + widgetHeight <= y) == ltr ?
2874
- "after" : "before"
2875
- // Now get accurate coordinates for this place, in order to get a
2876
- // base X position
2877
- var coords = cursorCoords(cm, Pos(lineNo, ch, sticky), "line", lineObj, preparedMeasure)
2878
- baseX = coords.left
2879
- outside = y < coords.top || y >= coords.bottom
2880
- }
2881
-
2882
- ch = skipExtendingChars(lineObj.text, ch, 1)
2883
- return PosWithInfo(lineNo, ch, sticky, outside, x - baseX)
2884
- }
2885
-
2886
- function coordsBidiPart(cm, lineObj, lineNo, preparedMeasure, order, x, y) {
2887
- // Bidi parts are sorted left-to-right, and in a non-line-wrapping
2888
- // situation, we can take this ordering to correspond to the visual
2889
- // ordering. This finds the first part whose end is after the given
2890
- // coordinates.
2891
- var index = findFirst(function (i) {
2892
- var part = order[i], ltr = part.level != 1
2893
- return boxIsAfter(cursorCoords(cm, Pos(lineNo, ltr ? part.to : part.from, ltr ? "before" : "after"),
2894
- "line", lineObj, preparedMeasure), x, y, true)
2895
- }, 0, order.length - 1)
2896
- var part = order[index]
2897
- // If this isn't the first part, the part's start is also after
2898
- // the coordinates, and the coordinates aren't on the same line as
2899
- // that start, move one part back.
2900
- if (index > 0) {
2901
- var ltr = part.level != 1
2902
- var start = cursorCoords(cm, Pos(lineNo, ltr ? part.from : part.to, ltr ? "after" : "before"),
2903
- "line", lineObj, preparedMeasure)
2904
- if (boxIsAfter(start, x, y, true) && start.top > y)
2905
- { part = order[index - 1] }
2906
- }
2907
- return part
2908
- }
2909
-
2910
- function coordsBidiPartWrapped(cm, lineObj, _lineNo, preparedMeasure, order, x, y) {
2911
- // In a wrapped line, rtl text on wrapping boundaries can do things
2912
- // that don't correspond to the ordering in our `order` array at
2913
- // all, so a binary search doesn't work, and we want to return a
2914
- // part that only spans one line so that the binary search in
2915
- // coordsCharInner is safe. As such, we first find the extent of the
2916
- // wrapped line, and then do a flat search in which we discard any
2917
- // spans that aren't on the line.
2918
- var ref = wrappedLineExtent(cm, lineObj, preparedMeasure, y);
2919
- var begin = ref.begin;
2920
- var end = ref.end;
2921
- if (/\s/.test(lineObj.text.charAt(end - 1))) { end-- }
2922
- var part = null, closestDist = null
2923
- for (var i = 0; i < order.length; i++) {
2924
- var p = order[i]
2925
- if (p.from >= end || p.to <= begin) { continue }
2926
- var ltr = p.level != 1
2927
- var endX = measureCharPrepared(cm, preparedMeasure, ltr ? Math.min(end, p.to) - 1 : Math.max(begin, p.from)).right
2928
- // Weigh against spans ending before this, so that they are only
2929
- // picked if nothing ends after
2930
- var dist = endX < x ? x - endX + 1e9 : endX - x
2931
- if (!part || closestDist > dist) {
2932
- part = p
2933
- closestDist = dist
2934
- }
2935
- }
2936
- if (!part) { part = order[order.length - 1] }
2937
- // Clip the part to the wrapped line.
2938
- if (part.from < begin) { part = {from: begin, to: part.to, level: part.level} }
2939
- if (part.to > end) { part = {from: part.from, to: end, level: part.level} }
2940
- return part
2941
- }
2942
-
2943
- var measureText
2944
- // Compute the default text height.
2945
- function textHeight(display) {
2946
- if (display.cachedTextHeight != null) { return display.cachedTextHeight }
2947
- if (measureText == null) {
2948
- measureText = elt("pre")
2949
- // Measure a bunch of lines, for browsers that compute
2950
- // fractional heights.
2951
- for (var i = 0; i < 49; ++i) {
2952
- measureText.appendChild(document.createTextNode("x"))
2953
- measureText.appendChild(elt("br"))
2954
- }
2955
- measureText.appendChild(document.createTextNode("x"))
2956
- }
2957
- removeChildrenAndAdd(display.measure, measureText)
2958
- var height = measureText.offsetHeight / 50
2959
- if (height > 3) { display.cachedTextHeight = height }
2960
- removeChildren(display.measure)
2961
- return height || 1
2962
- }
2963
-
2964
- // Compute the default character width.
2965
- function charWidth(display) {
2966
- if (display.cachedCharWidth != null) { return display.cachedCharWidth }
2967
- var anchor = elt("span", "xxxxxxxxxx")
2968
- var pre = elt("pre", [anchor])
2969
- removeChildrenAndAdd(display.measure, pre)
2970
- var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10
2971
- if (width > 2) { display.cachedCharWidth = width }
2972
- return width || 10
2973
- }
2974
-
2975
- // Do a bulk-read of the DOM positions and sizes needed to draw the
2976
- // view, so that we don't interleave reading and writing to the DOM.
2977
- function getDimensions(cm) {
2978
- var d = cm.display, left = {}, width = {}
2979
- var gutterLeft = d.gutters.clientLeft
2980
- for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
2981
- left[cm.options.gutters[i]] = n.offsetLeft + n.clientLeft + gutterLeft
2982
- width[cm.options.gutters[i]] = n.clientWidth
2983
- }
2984
- return {fixedPos: compensateForHScroll(d),
2985
- gutterTotalWidth: d.gutters.offsetWidth,
2986
- gutterLeft: left,
2987
- gutterWidth: width,
2988
- wrapperWidth: d.wrapper.clientWidth}
2989
- }
2990
-
2991
- // Computes display.scroller.scrollLeft + display.gutters.offsetWidth,
2992
- // but using getBoundingClientRect to get a sub-pixel-accurate
2993
- // result.
2994
- function compensateForHScroll(display) {
2995
- return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left
2996
- }
2997
-
2998
- // Returns a function that estimates the height of a line, to use as
2999
- // first approximation until the line becomes visible (and is thus
3000
- // properly measurable).
3001
- function estimateHeight(cm) {
3002
- var th = textHeight(cm.display), wrapping = cm.options.lineWrapping
3003
- var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3)
3004
- return function (line) {
3005
- if (lineIsHidden(cm.doc, line)) { return 0 }
3006
-
3007
- var widgetsHeight = 0
3008
- if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) {
3009
- if (line.widgets[i].height) { widgetsHeight += line.widgets[i].height }
3010
- } }
3011
 
3012
- if (wrapping)
3013
- { return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th }
3014
- else
3015
- { return widgetsHeight + th }
3016
- }
3017
- }
3018
-
3019
- function estimateLineHeights(cm) {
3020
- var doc = cm.doc, est = estimateHeight(cm)
3021
- doc.iter(function (line) {
3022
- var estHeight = est(line)
3023
- if (estHeight != line.height) { updateLineHeight(line, estHeight) }
3024
- })
3025
- }
3026
-
3027
- // Given a mouse event, find the corresponding position. If liberal
3028
- // is false, it checks whether a gutter or scrollbar was clicked,
3029
- // and returns null if it was. forRect is used by rectangular
3030
- // selections, and tries to estimate a character position even for
3031
- // coordinates beyond the right of the text.
3032
- function posFromMouse(cm, e, liberal, forRect) {
3033
- var display = cm.display
3034
- if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") { return null }
3035
-
3036
- var x, y, space = display.lineSpace.getBoundingClientRect()
3037
- // Fails unpredictably on IE[67] when mouse is dragged around quickly.
3038
- try { x = e.clientX - space.left; y = e.clientY - space.top }
3039
- catch (e) { return null }
3040
- var coords = coordsChar(cm, x, y), line
3041
- if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
3042
- var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length
3043
- coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff))
3044
- }
3045
- return coords
3046
- }
3047
-
3048
- // Find the view element corresponding to a given line. Return null
3049
- // when the line isn't visible.
3050
- function findViewIndex(cm, n) {
3051
- if (n >= cm.display.viewTo) { return null }
3052
- n -= cm.display.viewFrom
3053
- if (n < 0) { return null }
3054
- var view = cm.display.view
3055
- for (var i = 0; i < view.length; i++) {
3056
- n -= view[i].size
3057
- if (n < 0) { return i }
3058
- }
3059
- }
3060
-
3061
- function updateSelection(cm) {
3062
- cm.display.input.showSelection(cm.display.input.prepareSelection())
3063
- }
3064
-
3065
- function prepareSelection(cm, primary) {
3066
- if ( primary === void 0 ) primary = true;
3067
-
3068
- var doc = cm.doc, result = {}
3069
- var curFragment = result.cursors = document.createDocumentFragment()
3070
- var selFragment = result.selection = document.createDocumentFragment()
3071
-
3072
- for (var i = 0; i < doc.sel.ranges.length; i++) {
3073
- if (!primary && i == doc.sel.primIndex) { continue }
3074
- var range = doc.sel.ranges[i]
3075
- if (range.from().line >= cm.display.viewTo || range.to().line < cm.display.viewFrom) { continue }
3076
- var collapsed = range.empty()
3077
- if (collapsed || cm.options.showCursorWhenSelecting)
3078
- { drawSelectionCursor(cm, range.head, curFragment) }
3079
- if (!collapsed)
3080
- { drawSelectionRange(cm, range, selFragment) }
3081
- }
3082
- return result
3083
- }
3084
-
3085
- // Draws a cursor for the given range
3086
- function drawSelectionCursor(cm, head, output) {
3087
- var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine)
3088
-
3089
- var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor"))
3090
- cursor.style.left = pos.left + "px"
3091
- cursor.style.top = pos.top + "px"
3092
- cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px"
3093
-
3094
- if (pos.other) {
3095
- // Secondary cursor, shown when on a 'jump' in bi-directional text
3096
- var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"))
3097
- otherCursor.style.display = ""
3098
- otherCursor.style.left = pos.other.left + "px"
3099
- otherCursor.style.top = pos.other.top + "px"
3100
- otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px"
3101
- }
3102
- }
3103
-
3104
- function cmpCoords(a, b) { return a.top - b.top || a.left - b.left }
3105
-
3106
- // Draws the given range as a highlighted selection
3107
- function drawSelectionRange(cm, range, output) {
3108
- var display = cm.display, doc = cm.doc
3109
- var fragment = document.createDocumentFragment()
3110
- var padding = paddingH(cm.display), leftSide = padding.left
3111
- var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right
3112
- var docLTR = doc.direction == "ltr"
3113
-
3114
- function add(left, top, width, bottom) {
3115
- if (top < 0) { top = 0 }
3116
- top = Math.round(top)
3117
- bottom = Math.round(bottom)
3118
- fragment.appendChild(elt("div", null, "CodeMirror-selected", ("position: absolute; left: " + left + "px;\n top: " + top + "px; width: " + (width == null ? rightSide - left : width) + "px;\n height: " + (bottom - top) + "px")))
3119
- }
3120
-
3121
- function drawForLine(line, fromArg, toArg) {
3122
- var lineObj = getLine(doc, line)
3123
- var lineLen = lineObj.text.length
3124
- var start, end
3125
- function coords(ch, bias) {
3126
- return charCoords(cm, Pos(line, ch), "div", lineObj, bias)
3127
- }
3128
-
3129
- function wrapX(pos, dir, side) {
3130
- var extent = wrappedLineExtentChar(cm, lineObj, null, pos)
3131
- var prop = (dir == "ltr") == (side == "after") ? "left" : "right"
3132
- var ch = side == "after" ? extent.begin : extent.end - (/\s/.test(lineObj.text.charAt(extent.end - 1)) ? 2 : 1)
3133
- return coords(ch, prop)[prop]
3134
- }
3135
-
3136
- var order = getOrder(lineObj, doc.direction)
3137
- iterateBidiSections(order, fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir, i) {
3138
- var ltr = dir == "ltr"
3139
- var fromPos = coords(from, ltr ? "left" : "right")
3140
- var toPos = coords(to - 1, ltr ? "right" : "left")
3141
-
3142
- var openStart = fromArg == null && from == 0, openEnd = toArg == null && to == lineLen
3143
- var first = i == 0, last = !order || i == order.length - 1
3144
- if (toPos.top - fromPos.top <= 3) { // Single line
3145
- var openLeft = (docLTR ? openStart : openEnd) && first
3146
- var openRight = (docLTR ? openEnd : openStart) && last
3147
- var left = openLeft ? leftSide : (ltr ? fromPos : toPos).left
3148
- var right = openRight ? rightSide : (ltr ? toPos : fromPos).right
3149
- add(left, fromPos.top, right - left, fromPos.bottom)
3150
- } else { // Multiple lines
3151
- var topLeft, topRight, botLeft, botRight
3152
- if (ltr) {
3153
- topLeft = docLTR && openStart && first ? leftSide : fromPos.left
3154
- topRight = docLTR ? rightSide : wrapX(from, dir, "before")
3155
- botLeft = docLTR ? leftSide : wrapX(to, dir, "after")
3156
- botRight = docLTR && openEnd && last ? rightSide : toPos.right
3157
- } else {
3158
- topLeft = !docLTR ? leftSide : wrapX(from, dir, "before")
3159
- topRight = !docLTR && openStart && first ? rightSide : fromPos.right
3160
- botLeft = !docLTR && openEnd && last ? leftSide : toPos.left
3161
- botRight = !docLTR ? rightSide : wrapX(to, dir, "after")
3162
- }
3163
- add(topLeft, fromPos.top, topRight - topLeft, fromPos.bottom)
3164
- if (fromPos.bottom < toPos.top) { add(leftSide, fromPos.bottom, null, toPos.top) }
3165
- add(botLeft, toPos.top, botRight - botLeft, toPos.bottom)
3166
- }
3167
 
3168
- if (!start || cmpCoords(fromPos, start) < 0) { start = fromPos }
3169
- if (cmpCoords(toPos, start) < 0) { start = toPos }
3170
- if (!end || cmpCoords(fromPos, end) < 0) { end = fromPos }
3171
- if (cmpCoords(toPos, end) < 0) { end = toPos }
3172
- })
3173
- return {start: start, end: end}
3174
- }
3175
-
3176
- var sFrom = range.from(), sTo = range.to()
3177
- if (sFrom.line == sTo.line) {
3178
- drawForLine(sFrom.line, sFrom.ch, sTo.ch)
3179
- } else {
3180
- var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line)
3181
- var singleVLine = visualLine(fromLine) == visualLine(toLine)
3182
- var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end
3183
- var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start
3184
- if (singleVLine) {
3185
- if (leftEnd.top < rightStart.top - 2) {
3186
- add(leftEnd.right, leftEnd.top, null, leftEnd.bottom)
3187
- add(leftSide, rightStart.top, rightStart.left, rightStart.bottom)
3188
- } else {
3189
- add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom)
3190
- }
3191
- }
3192
- if (leftEnd.bottom < rightStart.top)
3193
- { add(leftSide, leftEnd.bottom, null, rightStart.top) }
3194
- }
3195
-
3196
- output.appendChild(fragment)
3197
- }
3198
-
3199
- // Cursor-blinking
3200
- function restartBlink(cm) {
3201
- if (!cm.state.focused) { return }
3202
- var display = cm.display
3203
- clearInterval(display.blinker)
3204
- var on = true
3205
- display.cursorDiv.style.visibility = ""
3206
- if (cm.options.cursorBlinkRate > 0)
3207
- { display.blinker = setInterval(function () { return display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden"; },
3208
- cm.options.cursorBlinkRate) }
3209
- else if (cm.options.cursorBlinkRate < 0)
3210
- { display.cursorDiv.style.visibility = "hidden" }
3211
- }
3212
-
3213
- function ensureFocus(cm) {
3214
- if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm) }
3215
- }
3216
-
3217
- function delayBlurEvent(cm) {
3218
- cm.state.delayingBlurEvent = true
3219
- setTimeout(function () { if (cm.state.delayingBlurEvent) {
3220
- cm.state.delayingBlurEvent = false
3221
- onBlur(cm)
3222
- } }, 100)
3223
- }
3224
-
3225
- function onFocus(cm, e) {
3226
- if (cm.state.delayingBlurEvent) { cm.state.delayingBlurEvent = false }
3227
-
3228
- if (cm.options.readOnly == "nocursor") { return }
3229
- if (!cm.state.focused) {
3230
- signal(cm, "focus", cm, e)
3231
- cm.state.focused = true
3232
- addClass(cm.display.wrapper, "CodeMirror-focused")
3233
- // This test prevents this from firing when a context
3234
- // menu is closed (since the input reset would kill the
3235
- // select-all detection hack)
3236
- if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {
3237
- cm.display.input.reset()
3238
- if (webkit) { setTimeout(function () { return cm.display.input.reset(true); }, 20) } // Issue #1730
3239
- }
3240
- cm.display.input.receivedFocus()
3241
- }
3242
- restartBlink(cm)
3243
- }
3244
- function onBlur(cm, e) {
3245
- if (cm.state.delayingBlurEvent) { return }
3246
-
3247
- if (cm.state.focused) {
3248
- signal(cm, "blur", cm, e)
3249
- cm.state.focused = false
3250
- rmClass(cm.display.wrapper, "CodeMirror-focused")
3251
- }
3252
- clearInterval(cm.display.blinker)
3253
- setTimeout(function () { if (!cm.state.focused) { cm.display.shift = false } }, 150)
3254
- }
3255
-
3256
- // Read the actual heights of the rendered lines, and update their
3257
- // stored heights to match.
3258
- function updateHeightsInViewport(cm) {
3259
- var display = cm.display
3260
- var prevBottom = display.lineDiv.offsetTop
3261
- for (var i = 0; i < display.view.length; i++) {
3262
- var cur = display.view[i], height = (void 0)
3263
- if (cur.hidden) { continue }
3264
- if (ie && ie_version < 8) {
3265
- var bot = cur.node.offsetTop + cur.node.offsetHeight
3266
- height = bot - prevBottom
3267
- prevBottom = bot
3268
- } else {
3269
- var box = cur.node.getBoundingClientRect()
3270
- height = box.bottom - box.top
3271
- }
3272
- var diff = cur.line.height - height
3273
- if (height < 2) { height = textHeight(display) }
3274
- if (diff > .005 || diff < -.005) {
3275
- updateLineHeight(cur.line, height)
3276
- updateWidgetHeight(cur.line)
3277
- if (cur.rest) { for (var j = 0; j < cur.rest.length; j++)
3278
- { updateWidgetHeight(cur.rest[j]) } }
3279
- }
3280
- }
3281
- }
3282
-
3283
- // Read and store the height of line widgets associated with the
3284
- // given line.
3285
- function updateWidgetHeight(line) {
3286
- if (line.widgets) { for (var i = 0; i < line.widgets.length; ++i) {
3287
- var w = line.widgets[i], parent = w.node.parentNode
3288
- if (parent) { w.height = parent.offsetHeight }
3289
- } }
3290
- }
3291
-
3292
- // Compute the lines that are visible in a given viewport (defaults
3293
- // the the current scroll position). viewport may contain top,
3294
- // height, and ensure (see op.scrollToPos) properties.
3295
- function visibleLines(display, doc, viewport) {
3296
- var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop
3297
- top = Math.floor(top - paddingTop(display))
3298
- var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight
3299
-
3300
- var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom)
3301
- // Ensure is a {from: {line, ch}, to: {line, ch}} object, and
3302
- // forces those lines into the viewport (if possible).
3303
- if (viewport && viewport.ensure) {
3304
- var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line
3305
- if (ensureFrom < from) {
3306
- from = ensureFrom
3307
- to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight)
3308
- } else if (Math.min(ensureTo, doc.lastLine()) >= to) {
3309
- from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight)
3310
- to = ensureTo
3311
- }
3312
- }
3313
- return {from: from, to: Math.max(to, from + 1)}
3314
- }
3315
-
3316
- // Re-align line numbers and gutter marks to compensate for
3317
- // horizontal scrolling.
3318
- function alignHorizontally(cm) {
3319
- var display = cm.display, view = display.view
3320
- if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) { return }
3321
- var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft
3322
- var gutterW = display.gutters.offsetWidth, left = comp + "px"
3323
- for (var i = 0; i < view.length; i++) { if (!view[i].hidden) {
3324
- if (cm.options.fixedGutter) {
3325
- if (view[i].gutter)
3326
- { view[i].gutter.style.left = left }
3327
- if (view[i].gutterBackground)
3328
- { view[i].gutterBackground.style.left = left }
3329
- }
3330
- var align = view[i].alignable
3331
- if (align) { for (var j = 0; j < align.length; j++)
3332
- { align[j].style.left = left } }
3333
- } }
3334
- if (cm.options.fixedGutter)
3335
- { display.gutters.style.left = (comp + gutterW) + "px" }
3336
- }
3337
-
3338
- // Used to ensure that the line number gutter is still the right
3339
- // size for the current document size. Returns true when an update
3340
- // is needed.
3341
- function maybeUpdateLineNumberWidth(cm) {
3342
- if (!cm.options.lineNumbers) { return false }
3343
- var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display
3344
- if (last.length != display.lineNumChars) {
3345
- var test = display.measure.appendChild(elt("div", [elt("div", last)],
3346
- "CodeMirror-linenumber CodeMirror-gutter-elt"))
3347
- var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW
3348
- display.lineGutter.style.width = ""
3349
- display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1
3350
- display.lineNumWidth = display.lineNumInnerWidth + padding
3351
- display.lineNumChars = display.lineNumInnerWidth ? last.length : -1
3352
- display.lineGutter.style.width = display.lineNumWidth + "px"
3353
- updateGutterSpace(cm)
3354
- return true
3355
- }
3356
- return false
3357
- }
3358
-
3359
- // SCROLLING THINGS INTO VIEW
3360
-
3361
- // If an editor sits on the top or bottom of the window, partially
3362
- // scrolled out of view, this ensures that the cursor is visible.
3363
- function maybeScrollWindow(cm, rect) {
3364
- if (signalDOMEvent(cm, "scrollCursorIntoView")) { return }
3365
-
3366
- var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null
3367
- if (rect.top + box.top < 0) { doScroll = true }
3368
- else if (rect.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) { doScroll = false }
3369
- if (doScroll != null && !phantom) {
3370
- var scrollNode = elt("div", "\u200b", null, ("position: absolute;\n top: " + (rect.top - display.viewOffset - paddingTop(cm.display)) + "px;\n height: " + (rect.bottom - rect.top + scrollGap(cm) + display.barHeight) + "px;\n left: " + (rect.left) + "px; width: " + (Math.max(2, rect.right - rect.left)) + "px;"))
3371
- cm.display.lineSpace.appendChild(scrollNode)
3372
- scrollNode.scrollIntoView(doScroll)
3373
- cm.display.lineSpace.removeChild(scrollNode)
3374
- }
3375
- }
3376
-
3377
- // Scroll a given position into view (immediately), verifying that
3378
- // it actually became visible (as line heights are accurately
3379
- // measured, the position of something may 'drift' during drawing).
3380
- function scrollPosIntoView(cm, pos, end, margin) {
3381
- if (margin == null) { margin = 0 }
3382
- var rect
3383
- if (!cm.options.lineWrapping && pos == end) {
3384
- // Set pos and end to the cursor positions around the character pos sticks to
3385
- // If pos.sticky == "before", that is around pos.ch - 1, otherwise around pos.ch
3386
- // If pos == Pos(_, 0, "before"), pos and end are unchanged
3387
- pos = pos.ch ? Pos(pos.line, pos.sticky == "before" ? pos.ch - 1 : pos.ch, "after") : pos
3388
- end = pos.sticky == "before" ? Pos(pos.line, pos.ch + 1, "before") : pos
3389
- }
3390
- for (var limit = 0; limit < 5; limit++) {
3391
- var changed = false
3392
- var coords = cursorCoords(cm, pos)
3393
- var endCoords = !end || end == pos ? coords : cursorCoords(cm, end)
3394
- rect = {left: Math.min(coords.left, endCoords.left),
3395
- top: Math.min(coords.top, endCoords.top) - margin,
3396
- right: Math.max(coords.left, endCoords.left),
3397
- bottom: Math.max(coords.bottom, endCoords.bottom) + margin}
3398
- var scrollPos = calculateScrollPos(cm, rect)
3399
- var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft
3400
- if (scrollPos.scrollTop != null) {
3401
- updateScrollTop(cm, scrollPos.scrollTop)
3402
- if (Math.abs(cm.doc.scrollTop - startTop) > 1) { changed = true }
3403
- }
3404
- if (scrollPos.scrollLeft != null) {
3405
- setScrollLeft(cm, scrollPos.scrollLeft)
3406
- if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) { changed = true }
3407
- }
3408
- if (!changed) { break }
3409
- }
3410
- return rect
3411
- }
3412
-
3413
- // Scroll a given set of coordinates into view (immediately).
3414
- function scrollIntoView(cm, rect) {
3415
- var scrollPos = calculateScrollPos(cm, rect)
3416
- if (scrollPos.scrollTop != null) { updateScrollTop(cm, scrollPos.scrollTop) }
3417
- if (scrollPos.scrollLeft != null) { setScrollLeft(cm, scrollPos.scrollLeft) }
3418
- }
3419
-
3420
- // Calculate a new scroll position needed to scroll the given
3421
- // rectangle into view. Returns an object with scrollTop and
3422
- // scrollLeft properties. When these are undefined, the
3423
- // vertical/horizontal position does not need to be adjusted.
3424
- function calculateScrollPos(cm, rect) {
3425
- var display = cm.display, snapMargin = textHeight(cm.display)
3426
- if (rect.top < 0) { rect.top = 0 }
3427
- var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop
3428
- var screen = displayHeight(cm), result = {}
3429
- if (rect.bottom - rect.top > screen) { rect.bottom = rect.top + screen }
3430
- var docBottom = cm.doc.height + paddingVert(display)
3431
- var atTop = rect.top < snapMargin, atBottom = rect.bottom > docBottom - snapMargin
3432
- if (rect.top < screentop) {
3433
- result.scrollTop = atTop ? 0 : rect.top
3434
- } else if (rect.bottom > screentop + screen) {
3435
- var newTop = Math.min(rect.top, (atBottom ? docBottom : rect.bottom) - screen)
3436
- if (newTop != screentop) { result.scrollTop = newTop }
3437
- }
3438
-
3439
- var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft
3440
- var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0)
3441
- var tooWide = rect.right - rect.left > screenw
3442
- if (tooWide) { rect.right = rect.left + screenw }
3443
- if (rect.left < 10)
3444
- { result.scrollLeft = 0 }
3445
- else if (rect.left < screenleft)
3446
- { result.scrollLeft = Math.max(0, rect.left - (tooWide ? 0 : 10)) }
3447
- else if (rect.right > screenw + screenleft - 3)
3448
- { result.scrollLeft = rect.right + (tooWide ? 0 : 10) - screenw }
3449
- return result
3450
- }
3451
-
3452
- // Store a relative adjustment to the scroll position in the current
3453
- // operation (to be applied when the operation finishes).
3454
- function addToScrollTop(cm, top) {
3455
- if (top == null) { return }
3456
- resolveScrollToPos(cm)
3457
- cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top
3458
- }
3459
-
3460
- // Make sure that at the end of the operation the current cursor is
3461
- // shown.
3462
- function ensureCursorVisible(cm) {
3463
- resolveScrollToPos(cm)
3464
- var cur = cm.getCursor()
3465
- cm.curOp.scrollToPos = {from: cur, to: cur, margin: cm.options.cursorScrollMargin}
3466
- }
3467
-
3468
- function scrollToCoords(cm, x, y) {
3469
- if (x != null || y != null) { resolveScrollToPos(cm) }
3470
- if (x != null) { cm.curOp.scrollLeft = x }
3471
- if (y != null) { cm.curOp.scrollTop = y }
3472
- }
3473
-
3474
- function scrollToRange(cm, range) {
3475
- resolveScrollToPos(cm)
3476
- cm.curOp.scrollToPos = range
3477
- }
3478
-
3479
- // When an operation has its scrollToPos property set, and another
3480
- // scroll action is applied before the end of the operation, this
3481
- // 'simulates' scrolling that position into view in a cheap way, so
3482
- // that the effect of intermediate scroll commands is not ignored.
3483
- function resolveScrollToPos(cm) {
3484
- var range = cm.curOp.scrollToPos
3485
- if (range) {
3486
- cm.curOp.scrollToPos = null
3487
- var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to)
3488
- scrollToCoordsRange(cm, from, to, range.margin)
3489
- }
3490
- }
3491
-
3492
- function scrollToCoordsRange(cm, from, to, margin) {
3493
- var sPos = calculateScrollPos(cm, {
3494
- left: Math.min(from.left, to.left),
3495
- top: Math.min(from.top, to.top) - margin,
3496
- right: Math.max(from.right, to.right),
3497
- bottom: Math.max(from.bottom, to.bottom) + margin
3498
- })
3499
- scrollToCoords(cm, sPos.scrollLeft, sPos.scrollTop)
3500
- }
3501
-
3502
- // Sync the scrollable area and scrollbars, ensure the viewport
3503
- // covers the visible area.
3504
- function updateScrollTop(cm, val) {
3505
- if (Math.abs(cm.doc.scrollTop - val) < 2) { return }
3506
- if (!gecko) { updateDisplaySimple(cm, {top: val}) }
3507
- setScrollTop(cm, val, true)
3508
- if (gecko) { updateDisplaySimple(cm) }
3509
- startWorker(cm, 100)
3510
- }
3511
-
3512
- function setScrollTop(cm, val, forceScroll) {
3513
- val = Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, val)
3514
- if (cm.display.scroller.scrollTop == val && !forceScroll) { return }
3515
- cm.doc.scrollTop = val
3516
- cm.display.scrollbars.setScrollTop(val)
3517
- if (cm.display.scroller.scrollTop != val) { cm.display.scroller.scrollTop = val }
3518
- }
3519
-
3520
- // Sync scroller and scrollbar, ensure the gutter elements are
3521
- // aligned.
3522
- function setScrollLeft(cm, val, isScroller, forceScroll) {
3523
- val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth)
3524
- if ((isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) && !forceScroll) { return }
3525
- cm.doc.scrollLeft = val
3526
- alignHorizontally(cm)
3527
- if (cm.display.scroller.scrollLeft != val) { cm.display.scroller.scrollLeft = val }
3528
- cm.display.scrollbars.setScrollLeft(val)
3529
- }
3530
-
3531
- // SCROLLBARS
3532
-
3533
- // Prepare DOM reads needed to update the scrollbars. Done in one
3534
- // shot to minimize update/measure roundtrips.
3535
- function measureForScrollbars(cm) {
3536
- var d = cm.display, gutterW = d.gutters.offsetWidth
3537
- var docH = Math.round(cm.doc.height + paddingVert(cm.display))
3538
- return {
3539
- clientHeight: d.scroller.clientHeight,
3540
- viewHeight: d.wrapper.clientHeight,
3541
- scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,
3542
- viewWidth: d.wrapper.clientWidth,
3543
- barLeft: cm.options.fixedGutter ? gutterW : 0,
3544
- docHeight: docH,
3545
- scrollHeight: docH + scrollGap(cm) + d.barHeight,
3546
- nativeBarWidth: d.nativeBarWidth,
3547
- gutterWidth: gutterW
3548
- }
3549
- }
3550
-
3551
- var NativeScrollbars = function(place, scroll, cm) {
3552
- this.cm = cm
3553
- var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar")
3554
- var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar")
3555
- vert.tabIndex = horiz.tabIndex = -1
3556
- place(vert); place(horiz)
3557
-
3558
- on(vert, "scroll", function () {
3559
- if (vert.clientHeight) { scroll(vert.scrollTop, "vertical") }
3560
- })
3561
- on(horiz, "scroll", function () {
3562
- if (horiz.clientWidth) { scroll(horiz.scrollLeft, "horizontal") }
3563
- })
3564
-
3565
- this.checkedZeroWidth = false
3566
- // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
3567
- if (ie && ie_version < 8) { this.horiz.style.minHeight = this.vert.style.minWidth = "18px" }
3568
- };
3569
-
3570
- NativeScrollbars.prototype.update = function (measure) {
3571
- var needsH = measure.scrollWidth > measure.clientWidth + 1
3572
- var needsV = measure.scrollHeight > measure.clientHeight + 1
3573
- var sWidth = measure.nativeBarWidth
3574
-
3575
- if (needsV) {
3576
- this.vert.style.display = "block"
3577
- this.vert.style.bottom = needsH ? sWidth + "px" : "0"
3578
- var totalHeight = measure.viewHeight - (needsH ? sWidth : 0)
3579
- // A bug in IE8 can cause this value to be negative, so guard it.
3580
- this.vert.firstChild.style.height =
3581
- Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px"
3582
- } else {
3583
- this.vert.style.display = ""
3584
- this.vert.firstChild.style.height = "0"
3585
- }
3586
-
3587
- if (needsH) {
3588
- this.horiz.style.display = "block"
3589
- this.horiz.style.right = needsV ? sWidth + "px" : "0"
3590
- this.horiz.style.left = measure.barLeft + "px"
3591
- var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0)
3592
- this.horiz.firstChild.style.width =
3593
- Math.max(0, measure.scrollWidth - measure.clientWidth + totalWidth) + "px"
3594
- } else {
3595
- this.horiz.style.display = ""
3596
- this.horiz.firstChild.style.width = "0"
3597
- }
3598
-
3599
- if (!this.checkedZeroWidth && measure.clientHeight > 0) {
3600
- if (sWidth == 0) { this.zeroWidthHack() }
3601
- this.checkedZeroWidth = true
3602
- }
3603
-
3604
- return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0}
3605
- };
3606
-
3607
- NativeScrollbars.prototype.setScrollLeft = function (pos) {
3608
- if (this.horiz.scrollLeft != pos) { this.horiz.scrollLeft = pos }
3609
- if (this.disableHoriz) { this.enableZeroWidthBar(this.horiz, this.disableHoriz, "horiz") }
3610
- };
3611
-
3612
- NativeScrollbars.prototype.setScrollTop = function (pos) {
3613
- if (this.vert.scrollTop != pos) { this.vert.scrollTop = pos }
3614
- if (this.disableVert) { this.enableZeroWidthBar(this.vert, this.disableVert, "vert") }
3615
- };
3616
-
3617
- NativeScrollbars.prototype.zeroWidthHack = function () {
3618
- var w = mac && !mac_geMountainLion ? "12px" : "18px"
3619
- this.horiz.style.height = this.vert.style.width = w
3620
- this.horiz.style.pointerEvents = this.vert.style.pointerEvents = "none"
3621
- this.disableHoriz = new Delayed
3622
- this.disableVert = new Delayed
3623
- };
3624
-
3625
- NativeScrollbars.prototype.enableZeroWidthBar = function (bar, delay, type) {
3626
- bar.style.pointerEvents = "auto"
3627
- function maybeDisable() {
3628
- // To find out whether the scrollbar is still visible, we
3629
- // check whether the element under the pixel in the bottom
3630
- // right corner of the scrollbar box is the scrollbar box
3631
- // itself (when the bar is still visible) or its filler child
3632
- // (when the bar is hidden). If it is still visible, we keep
3633
- // it enabled, if it's hidden, we disable pointer events.
3634
- var box = bar.getBoundingClientRect()
3635
- var elt = type == "vert" ? document.elementFromPoint(box.right - 1, (box.top + box.bottom) / 2)
3636
- : document.elementFromPoint((box.right + box.left) / 2, box.bottom - 1)
3637
- if (elt != bar) { bar.style.pointerEvents = "none" }
3638
- else { delay.set(1000, maybeDisable) }
3639
- }
3640
- delay.set(1000, maybeDisable)
3641
- };
3642
-
3643
- NativeScrollbars.prototype.clear = function () {
3644
- var parent = this.horiz.parentNode
3645
- parent.removeChild(this.horiz)
3646
- parent.removeChild(this.vert)
3647
- };
3648
-
3649
- var NullScrollbars = function () {};
3650
-
3651
- NullScrollbars.prototype.update = function () { return {bottom: 0, right: 0} };
3652
- NullScrollbars.prototype.setScrollLeft = function () {};
3653
- NullScrollbars.prototype.setScrollTop = function () {};
3654
- NullScrollbars.prototype.clear = function () {};
3655
-
3656
- function updateScrollbars(cm, measure) {
3657
- if (!measure) { measure = measureForScrollbars(cm) }
3658
- var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight
3659
- updateScrollbarsInner(cm, measure)
3660
- for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {
3661
- if (startWidth != cm.display.barWidth && cm.options.lineWrapping)
3662
- { updateHeightsInViewport(cm) }
3663
- updateScrollbarsInner(cm, measureForScrollbars(cm))
3664
- startWidth = cm.display.barWidth; startHeight = cm.display.barHeight
3665
- }
3666
- }
3667
-
3668
- // Re-synchronize the fake scrollbars with the actual size of the
3669
- // content.
3670
- function updateScrollbarsInner(cm, measure) {
3671
- var d = cm.display
3672
- var sizes = d.scrollbars.update(measure)
3673
-
3674
- d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px"
3675
- d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px"
3676
- d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent"
3677
-
3678
- if (sizes.right && sizes.bottom) {
3679
- d.scrollbarFiller.style.display = "block"
3680
- d.scrollbarFiller.style.height = sizes.bottom + "px"
3681
- d.scrollbarFiller.style.width = sizes.right + "px"
3682
- } else { d.scrollbarFiller.style.display = "" }
3683
- if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {
3684
- d.gutterFiller.style.display = "block"
3685
- d.gutterFiller.style.height = sizes.bottom + "px"
3686
- d.gutterFiller.style.width = measure.gutterWidth + "px"
3687
- } else { d.gutterFiller.style.display = "" }
3688
- }
3689
-
3690
- var scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars}
3691
-
3692
- function initScrollbars(cm) {
3693
- if (cm.display.scrollbars) {
3694
- cm.display.scrollbars.clear()
3695
- if (cm.display.scrollbars.addClass)
3696
- { rmClass(cm.display.wrapper, cm.display.scrollbars.addClass) }
3697
  }
3698
 
3699
- cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](function (node) {
3700
- cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller)
3701
- // Prevent clicks in the scrollbars from killing focus
3702
- on(node, "mousedown", function () {
3703
- if (cm.state.focused) { setTimeout(function () { return cm.display.input.focus(); }, 0) }
3704
- })
3705
- node.setAttribute("cm-not-content", "true")
3706
- }, function (pos, axis) {
3707
- if (axis == "horizontal") { setScrollLeft(cm, pos) }
3708
- else { updateScrollTop(cm, pos) }
3709
- }, cm)
3710
- if (cm.display.scrollbars.addClass)
3711
- { addClass(cm.display.wrapper, cm.display.scrollbars.addClass) }
3712
- }
3713
-
3714
- // Operations are used to wrap a series of changes to the editor
3715
- // state in such a way that each change won't have to update the
3716
- // cursor and display (which would be awkward, slow, and
3717
- // error-prone). Instead, display updates are batched and then all
3718
- // combined and executed at once.
3719
-
3720
- var nextOpId = 0
3721
- // Start a new operation.
3722
- function startOperation(cm) {
3723
- cm.curOp = {
3724
- cm: cm,
3725
- viewChanged: false, // Flag that indicates that lines might need to be redrawn
3726
- startHeight: cm.doc.height, // Used to detect need to update scrollbar
3727
- forceUpdate: false, // Used to force a redraw
3728
- updateInput: null, // Whether to reset the input textarea
3729
- typing: false, // Whether this reset should be careful to leave existing text (for compositing)
3730
- changeObjs: null, // Accumulated changes, for firing change events
3731
- cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on
3732
- cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already
3733
- selectionChanged: false, // Whether the selection needs to be redrawn
3734
- updateMaxLine: false, // Set when the widest line needs to be determined anew
3735
- scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet
3736
- scrollToPos: null, // Used to scroll to a specific position
3737
- focus: false,
3738
- id: ++nextOpId // Unique ID
3739
- }
3740
- pushOperation(cm.curOp)
3741
- }
3742
-
3743
- // Finish an operation, updating the display and signalling delayed events
3744
- function endOperation(cm) {
3745
- var op = cm.curOp
3746
- finishOperation(op, function (group) {
3747
- for (var i = 0; i < group.ops.length; i++)
3748
- { group.ops[i].cm.curOp = null }
3749
- endOperations(group)
3750
- })
3751
- }
3752
-
3753
- // The DOM updates done when an operation finishes are batched so
3754
- // that the minimum number of relayouts are required.
3755
- function endOperations(group) {
3756
- var ops = group.ops
3757
- for (var i = 0; i < ops.length; i++) // Read DOM
3758
- { endOperation_R1(ops[i]) }
3759
- for (var i$1 = 0; i$1 < ops.length; i$1++) // Write DOM (maybe)
3760
- { endOperation_W1(ops[i$1]) }
3761
- for (var i$2 = 0; i$2 < ops.length; i$2++) // Read DOM
3762
- { endOperation_R2(ops[i$2]) }
3763
- for (var i$3 = 0; i$3 < ops.length; i$3++) // Write DOM (maybe)
3764
- { endOperation_W2(ops[i$3]) }
3765
- for (var i$4 = 0; i$4 < ops.length; i$4++) // Read DOM
3766
- { endOperation_finish(ops[i$4]) }
3767
- }
3768
-
3769
- function endOperation_R1(op) {
3770
- var cm = op.cm, display = cm.display
3771
- maybeClipScrollbars(cm)
3772
- if (op.updateMaxLine) { findMaxLine(cm) }
3773
-
3774
- op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||
3775
- op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||
3776
- op.scrollToPos.to.line >= display.viewTo) ||
3777
- display.maxLineChanged && cm.options.lineWrapping
3778
- op.update = op.mustUpdate &&
3779
- new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate)
3780
- }
3781
-
3782
- function endOperation_W1(op) {
3783
- op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update)
3784
- }
3785
-
3786
- function endOperation_R2(op) {
3787
- var cm = op.cm, display = cm.display
3788
- if (op.updatedDisplay) { updateHeightsInViewport(cm) }
3789
-
3790
- op.barMeasure = measureForScrollbars(cm)
3791
-
3792
- // If the max line changed since it was last measured, measure it,
3793
- // and ensure the document's width matches it.
3794
- // updateDisplay_W2 will use these properties to do the actual resizing
3795
- if (display.maxLineChanged && !cm.options.lineWrapping) {
3796
- op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3
3797
- cm.display.sizerWidth = op.adjustWidthTo
3798
- op.barMeasure.scrollWidth =
3799
- Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth)
3800
- op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm))
3801
- }
3802
-
3803
- if (op.updatedDisplay || op.selectionChanged)
3804
- { op.preparedSelection = display.input.prepareSelection() }
3805
- }
3806
-
3807
- function endOperation_W2(op) {
3808
- var cm = op.cm
3809
-
3810
- if (op.adjustWidthTo != null) {
3811
- cm.display.sizer.style.minWidth = op.adjustWidthTo + "px"
3812
- if (op.maxScrollLeft < cm.doc.scrollLeft)
3813
- { setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true) }
3814
- cm.display.maxLineChanged = false
3815
- }
3816
-
3817
- var takeFocus = op.focus && op.focus == activeElt()
3818
- if (op.preparedSelection)
3819
- { cm.display.input.showSelection(op.preparedSelection, takeFocus) }
3820
- if (op.updatedDisplay || op.startHeight != cm.doc.height)
3821
- { updateScrollbars(cm, op.barMeasure) }
3822
- if (op.updatedDisplay)
3823
- { setDocumentHeight(cm, op.barMeasure) }
3824
-
3825
- if (op.selectionChanged) { restartBlink(cm) }
3826
-
3827
- if (cm.state.focused && op.updateInput)
3828
- { cm.display.input.reset(op.typing) }
3829
- if (takeFocus) { ensureFocus(op.cm) }
3830
- }
3831
-
3832
- function endOperation_finish(op) {
3833
- var cm = op.cm, display = cm.display, doc = cm.doc
3834
-
3835
- if (op.updatedDisplay) { postUpdateDisplay(cm, op.update) }
3836
-
3837
- // Abort mouse wheel delta measurement, when scrolling explicitly
3838
- if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))
3839
- { display.wheelStartX = display.wheelStartY = null }
3840
-
3841
- // Propagate the scroll position to the actual DOM scroller
3842
- if (op.scrollTop != null) { setScrollTop(cm, op.scrollTop, op.forceScroll) }
3843
-
3844
- if (op.scrollLeft != null) { setScrollLeft(cm, op.scrollLeft, true, true) }
3845
- // If we need to scroll a specific position into view, do so.
3846
- if (op.scrollToPos) {
3847
- var rect = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),
3848
- clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin)
3849
- maybeScrollWindow(cm, rect)
3850
- }
3851
-
3852
- // Fire events for markers that are hidden/unidden by editing or
3853
- // undoing
3854
- var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers
3855
- if (hidden) { for (var i = 0; i < hidden.length; ++i)
3856
- { if (!hidden[i].lines.length) { signal(hidden[i], "hide") } } }
3857
- if (unhidden) { for (var i$1 = 0; i$1 < unhidden.length; ++i$1)
3858
- { if (unhidden[i$1].lines.length) { signal(unhidden[i$1], "unhide") } } }
3859
-
3860
- if (display.wrapper.offsetHeight)
3861
- { doc.scrollTop = cm.display.scroller.scrollTop }
3862
-
3863
- // Fire change events, and delayed event handlers
3864
- if (op.changeObjs)
3865
- { signal(cm, "changes", cm, op.changeObjs) }
3866
- if (op.update)
3867
- { op.update.finish() }
3868
- }
3869
-
3870
- // Run the given function in an operation
3871
- function runInOp(cm, f) {
3872
- if (cm.curOp) { return f() }
3873
- startOperation(cm)
3874
- try { return f() }
3875
- finally { endOperation(cm) }
3876
- }
3877
- // Wraps a function in an operation. Returns the wrapped function.
3878
- function operation(cm, f) {
3879
- return function() {
3880
- if (cm.curOp) { return f.apply(cm, arguments) }
3881
- startOperation(cm)
3882
- try { return f.apply(cm, arguments) }
3883
- finally { endOperation(cm) }
3884
- }
3885
- }
3886
- // Used to add methods to editor and doc instances, wrapping them in
3887
- // operations.
3888
- function methodOp(f) {
3889
- return function() {
3890
- if (this.curOp) { return f.apply(this, arguments) }
3891
- startOperation(this)
3892
- try { return f.apply(this, arguments) }
3893
- finally { endOperation(this) }
3894
- }
3895
- }
3896
- function docMethodOp(f) {
3897
- return function() {
3898
- var cm = this.cm
3899
- if (!cm || cm.curOp) { return f.apply(this, arguments) }
3900
- startOperation(cm)
3901
- try { return f.apply(this, arguments) }
3902
- finally { endOperation(cm) }
3903
- }
3904
- }
3905
-
3906
- // Updates the display.view data structure for a given change to the
3907
- // document. From and to are in pre-change coordinates. Lendiff is
3908
- // the amount of lines added or subtracted by the change. This is
3909
- // used for changes that span multiple lines, or change the way
3910
- // lines are divided into visual lines. regLineChange (below)
3911
- // registers single-line changes.
3912
- function regChange(cm, from, to, lendiff) {
3913
- if (from == null) { from = cm.doc.first }
3914
- if (to == null) { to = cm.doc.first + cm.doc.size }
3915
- if (!lendiff) { lendiff = 0 }
3916
-
3917
- var display = cm.display
3918
- if (lendiff && to < display.viewTo &&
3919
- (display.updateLineNumbers == null || display.updateLineNumbers > from))
3920
- { display.updateLineNumbers = from }
3921
-
3922
- cm.curOp.viewChanged = true
3923
-
3924
- if (from >= display.viewTo) { // Change after
3925
- if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)
3926
- { resetView(cm) }
3927
- } else if (to <= display.viewFrom) { // Change before
3928
- if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {
3929
- resetView(cm)
3930
- } else {
3931
- display.viewFrom += lendiff
3932
- display.viewTo += lendiff
3933
- }
3934
- } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap
3935
- resetView(cm)
3936
- } else if (from <= display.viewFrom) { // Top overlap
3937
- var cut = viewCuttingPoint(cm, to, to + lendiff, 1)
3938
- if (cut) {
3939
- display.view = display.view.slice(cut.index)
3940
- display.viewFrom = cut.lineN
3941
- display.viewTo += lendiff
3942
- } else {
3943
- resetView(cm)
3944
- }
3945
- } else if (to >= display.viewTo) { // Bottom overlap
3946
- var cut$1 = viewCuttingPoint(cm, from, from, -1)
3947
- if (cut$1) {
3948
- display.view = display.view.slice(0, cut$1.index)
3949
- display.viewTo = cut$1.lineN
3950
- } else {
3951
- resetView(cm)
3952
- }
3953
- } else { // Gap in the middle
3954
- var cutTop = viewCuttingPoint(cm, from, from, -1)
3955
- var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1)
3956
- if (cutTop && cutBot) {
3957
- display.view = display.view.slice(0, cutTop.index)
3958
- .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))
3959
- .concat(display.view.slice(cutBot.index))
3960
- display.viewTo += lendiff
3961
- } else {
3962
- resetView(cm)
3963
- }
3964
- }
3965
-
3966
- var ext = display.externalMeasured
3967
- if (ext) {
3968
- if (to < ext.lineN)
3969
- { ext.lineN += lendiff }
3970
- else if (from < ext.lineN + ext.size)
3971
- { display.externalMeasured = null }
3972
- }
3973
- }
3974
-
3975
- // Register a change to a single line. Type must be one of "text",
3976
- // "gutter", "class", "widget"
3977
- function regLineChange(cm, line, type) {
3978
- cm.curOp.viewChanged = true
3979
- var display = cm.display, ext = cm.display.externalMeasured
3980
- if (ext && line >= ext.lineN && line < ext.lineN + ext.size)
3981
- { display.externalMeasured = null }
3982
-
3983
- if (line < display.viewFrom || line >= display.viewTo) { return }
3984
- var lineView = display.view[findViewIndex(cm, line)]
3985
- if (lineView.node == null) { return }
3986
- var arr = lineView.changes || (lineView.changes = [])
3987
- if (indexOf(arr, type) == -1) { arr.push(type) }
3988
- }
3989
-
3990
- // Clear the view.
3991
- function resetView(cm) {
3992
- cm.display.viewFrom = cm.display.viewTo = cm.doc.first
3993
- cm.display.view = []
3994
- cm.display.viewOffset = 0
3995
- }
3996
-
3997
- function viewCuttingPoint(cm, oldN, newN, dir) {
3998
- var index = findViewIndex(cm, oldN), diff, view = cm.display.view
3999
- if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)
4000
- { return {index: index, lineN: newN} }
4001
- var n = cm.display.viewFrom
4002
- for (var i = 0; i < index; i++)
4003
- { n += view[i].size }
4004
- if (n != oldN) {
4005
- if (dir > 0) {
4006
- if (index == view.length - 1) { return null }
4007
- diff = (n + view[index].size) - oldN
4008
- index++
4009
- } else {
4010
- diff = n - oldN
4011
- }
4012
- oldN += diff; newN += diff
4013
- }
4014
- while (visualLineNo(cm.doc, newN) != newN) {
4015
- if (index == (dir < 0 ? 0 : view.length - 1)) { return null }
4016
- newN += dir * view[index - (dir < 0 ? 1 : 0)].size
4017
- index += dir
4018
- }
4019
- return {index: index, lineN: newN}
4020
- }
4021
-
4022
- // Force the view to cover a given range, adding empty view element
4023
- // or clipping off existing ones as needed.
4024
- function adjustView(cm, from, to) {
4025
- var display = cm.display, view = display.view
4026
- if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {
4027
- display.view = buildViewArray(cm, from, to)
4028
- display.viewFrom = from
4029
- } else {
4030
- if (display.viewFrom > from)
4031
- { display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view) }
4032
- else if (display.viewFrom < from)
4033
- { display.view = display.view.slice(findViewIndex(cm, from)) }
4034
- display.viewFrom = from
4035
- if (display.viewTo < to)
4036
- { display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)) }
4037
- else if (display.viewTo > to)
4038
- { display.view = display.view.slice(0, findViewIndex(cm, to)) }
4039
- }
4040
- display.viewTo = to
4041
- }
4042
-
4043
- // Count the number of lines in the view whose DOM representation is
4044
- // out of date (or nonexistent).
4045
- function countDirtyView(cm) {
4046
- var view = cm.display.view, dirty = 0
4047
- for (var i = 0; i < view.length; i++) {
4048
- var lineView = view[i]
4049
- if (!lineView.hidden && (!lineView.node || lineView.changes)) { ++dirty }
4050
- }
4051
- return dirty
4052
- }
4053
-
4054
- // HIGHLIGHT WORKER
4055
-
4056
- function startWorker(cm, time) {
4057
- if (cm.doc.highlightFrontier < cm.display.viewTo)
4058
- { cm.state.highlight.set(time, bind(highlightWorker, cm)) }
4059
- }
4060
-
4061
- function highlightWorker(cm) {
4062
- var doc = cm.doc
4063
- if (doc.highlightFrontier >= cm.display.viewTo) { return }
4064
- var end = +new Date + cm.options.workTime
4065
- var context = getContextBefore(cm, doc.highlightFrontier)
4066
- var changedLines = []
4067
-
4068
- doc.iter(context.line, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) {
4069
- if (context.line >= cm.display.viewFrom) { // Visible
4070
- var oldStyles = line.styles
4071
- var resetState = line.text.length > cm.options.maxHighlightLength ? copyState(doc.mode, context.state) : null
4072
- var highlighted = highlightLine(cm, line, context, true)
4073
- if (resetState) { context.state = resetState }
4074
- line.styles = highlighted.styles
4075
- var oldCls = line.styleClasses, newCls = highlighted.classes
4076
- if (newCls) { line.styleClasses = newCls }
4077
- else if (oldCls) { line.styleClasses = null }
4078
- var ischange = !oldStyles || oldStyles.length != line.styles.length ||
4079
- oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass)
4080
- for (var i = 0; !ischange && i < oldStyles.length; ++i) { ischange = oldStyles[i] != line.styles[i] }
4081
- if (ischange) { changedLines.push(context.line) }
4082
- line.stateAfter = context.save()
4083
- context.nextLine()
4084
- } else {
4085
- if (line.text.length <= cm.options.maxHighlightLength)
4086
- { processLine(cm, line.text, context) }
4087
- line.stateAfter = context.line % 5 == 0 ? context.save() : null
4088
- context.nextLine()
4089
- }
4090
- if (+new Date > end) {
4091
- startWorker(cm, cm.options.workDelay)
4092
- return true
4093
- }
4094
- })
4095
- doc.highlightFrontier = context.line
4096
- doc.modeFrontier = Math.max(doc.modeFrontier, context.line)
4097
- if (changedLines.length) { runInOp(cm, function () {
4098
- for (var i = 0; i < changedLines.length; i++)
4099
- { regLineChange(cm, changedLines[i], "text") }
4100
- }) }
4101
- }
4102
-
4103
- // DISPLAY DRAWING
4104
-
4105
- var DisplayUpdate = function(cm, viewport, force) {
4106
- var display = cm.display
4107
-
4108
- this.viewport = viewport
4109
- // Store some values that we'll need later (but don't want to force a relayout for)
4110
- this.visible = visibleLines(display, cm.doc, viewport)
4111
- this.editorIsHidden = !display.wrapper.offsetWidth
4112
- this.wrapperHeight = display.wrapper.clientHeight
4113
- this.wrapperWidth = display.wrapper.clientWidth
4114
- this.oldDisplayWidth = displayWidth(cm)
4115
- this.force = force
4116
- this.dims = getDimensions(cm)
4117
- this.events = []
4118
- };
4119
-
4120
- DisplayUpdate.prototype.signal = function (emitter, type) {
4121
- if (hasHandler(emitter, type))
4122
- { this.events.push(arguments) }
4123
- };
4124
- DisplayUpdate.prototype.finish = function () {
4125
- var this$1 = this;
4126
-
4127
- for (var i = 0; i < this.events.length; i++)
4128
- { signal.apply(null, this$1.events[i]) }
4129
- };
4130
-
4131
- function maybeClipScrollbars(cm) {
4132
- var display = cm.display
4133
- if (!display.scrollbarsClipped && display.scroller.offsetWidth) {
4134
- display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth
4135
- display.heightForcer.style.height = scrollGap(cm) + "px"
4136
- display.sizer.style.marginBottom = -display.nativeBarWidth + "px"
4137
- display.sizer.style.borderRightWidth = scrollGap(cm) + "px"
4138
- display.scrollbarsClipped = true
4139
- }
4140
- }
4141
-
4142
- function selectionSnapshot(cm) {
4143
- if (cm.hasFocus()) { return null }
4144
- var active = activeElt()
4145
- if (!active || !contains(cm.display.lineDiv, active)) { return null }
4146
- var result = {activeElt: active}
4147
- if (window.getSelection) {
4148
- var sel = window.getSelection()
4149
- if (sel.anchorNode && sel.extend && contains(cm.display.lineDiv, sel.anchorNode)) {
4150
- result.anchorNode = sel.anchorNode
4151
- result.anchorOffset = sel.anchorOffset
4152
- result.focusNode = sel.focusNode
4153
- result.focusOffset = sel.focusOffset
4154
- }
4155
- }
4156
- return result
4157
- }
4158
-
4159
- function restoreSelection(snapshot) {
4160
- if (!snapshot || !snapshot.activeElt || snapshot.activeElt == activeElt()) { return }
4161
- snapshot.activeElt.focus()
4162
- if (snapshot.anchorNode && contains(document.body, snapshot.anchorNode) && contains(document.body, snapshot.focusNode)) {
4163
- var sel = window.getSelection(), range = document.createRange()
4164
- range.setEnd(snapshot.anchorNode, snapshot.anchorOffset)
4165
- range.collapse(false)
4166
- sel.removeAllRanges()
4167
- sel.addRange(range)
4168
- sel.extend(snapshot.focusNode, snapshot.focusOffset)
4169
- }
4170
- }
4171
-
4172
- // Does the actual updating of the line display. Bails out
4173
- // (returning false) when there is nothing to be done and forced is
4174
- // false.
4175
- function updateDisplayIfNeeded(cm, update) {
4176
- var display = cm.display, doc = cm.doc
4177
-
4178
- if (update.editorIsHidden) {
4179
- resetView(cm)
4180
- return false
4181
  }
4182
 
4183
- // Bail out if the visible area is already rendered and nothing changed.
4184
- if (!update.force &&
4185
- update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&
4186
- (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&
4187
- display.renderedView == display.view && countDirtyView(cm) == 0)
4188
- { return false }
4189
-
4190
- if (maybeUpdateLineNumberWidth(cm)) {
4191
- resetView(cm)
4192
- update.dims = getDimensions(cm)
4193
- }
4194
-
4195
- // Compute a suitable new viewport (from & to)
4196
- var end = doc.first + doc.size
4197
- var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first)
4198
- var to = Math.min(end, update.visible.to + cm.options.viewportMargin)
4199
- if (display.viewFrom < from && from - display.viewFrom < 20) { from = Math.max(doc.first, display.viewFrom) }
4200
- if (display.viewTo > to && display.viewTo - to < 20) { to = Math.min(end, display.viewTo) }
4201
- if (sawCollapsedSpans) {
4202
- from = visualLineNo(cm.doc, from)
4203
- to = visualLineEndNo(cm.doc, to)
4204
- }
4205
-
4206
- var different = from != display.viewFrom || to != display.viewTo ||
4207
- display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth
4208
- adjustView(cm, from, to)
4209
-
4210
- display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom))
4211
- // Position the mover div to align with the current scroll position
4212
- cm.display.mover.style.top = display.viewOffset + "px"
4213
-
4214
- var toUpdate = countDirtyView(cm)
4215
- if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&
4216
- (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))
4217
- { return false }
4218
-
4219
- // For big changes, we hide the enclosing element during the
4220
- // update, since that speeds up the operations on most browsers.
4221
- var selSnapshot = selectionSnapshot(cm)
4222
- if (toUpdate > 4) { display.lineDiv.style.display = "none" }
4223
- patchDisplay(cm, display.updateLineNumbers, update.dims)
4224
- if (toUpdate > 4) { display.lineDiv.style.display = "" }
4225
- display.renderedView = display.view
4226
- // There might have been a widget with a focused element that got
4227
- // hidden or updated, if so re-focus it.
4228
- restoreSelection(selSnapshot)
4229
-
4230
- // Prevent selection and cursors from interfering with the scroll
4231
- // width and height.
4232
- removeChildren(display.cursorDiv)
4233
- removeChildren(display.selectionDiv)
4234
- display.gutters.style.height = display.sizer.style.minHeight = 0
4235
-
4236
- if (different) {
4237
- display.lastWrapHeight = update.wrapperHeight
4238
- display.lastWrapWidth = update.wrapperWidth
4239
- startWorker(cm, 400)
4240
- }
4241
-
4242
- display.updateLineNumbers = null
4243
-
4244
- return true
4245
- }
4246
-
4247
- function postUpdateDisplay(cm, update) {
4248
- var viewport = update.viewport
4249
-
4250
- for (var first = true;; first = false) {
4251
- if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {
4252
- // Clip forced viewport to actual scrollable area.
4253
- if (viewport && viewport.top != null)
4254
- { viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)} }
4255
- // Updated line heights might result in the drawn area not
4256
- // actually covering the viewport. Keep looping until it does.
4257
- update.visible = visibleLines(cm.display, cm.doc, viewport)
4258
- if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)
4259
- { break }
4260
  }
4261
- if (!updateDisplayIfNeeded(cm, update)) { break }
4262
- updateHeightsInViewport(cm)
4263
- var barMeasure = measureForScrollbars(cm)
4264
- updateSelection(cm)
4265
- updateScrollbars(cm, barMeasure)
4266
- setDocumentHeight(cm, barMeasure)
4267
- update.force = false
4268
- }
4269
-
4270
- update.signal(cm, "update", cm)
4271
- if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {
4272
- update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo)
4273
- cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo
4274
- }
4275
- }
4276
-
4277
- function updateDisplaySimple(cm, viewport) {
4278
- var update = new DisplayUpdate(cm, viewport)
4279
- if (updateDisplayIfNeeded(cm, update)) {
4280
- updateHeightsInViewport(cm)
4281
- postUpdateDisplay(cm, update)
4282
- var barMeasure = measureForScrollbars(cm)
4283
- updateSelection(cm)
4284
- updateScrollbars(cm, barMeasure)
4285
- setDocumentHeight(cm, barMeasure)
4286
- update.finish()
4287
- }
4288
- }
4289
-
4290
- // Sync the actual display DOM structure with display.view, removing
4291
- // nodes for lines that are no longer in view, and creating the ones
4292
- // that are not there yet, and updating the ones that are out of
4293
- // date.
4294
- function patchDisplay(cm, updateNumbersFrom, dims) {
4295
- var display = cm.display, lineNumbers = cm.options.lineNumbers
4296
- var container = display.lineDiv, cur = container.firstChild
4297
-
4298
- function rm(node) {
4299
- var next = node.nextSibling
4300
- // Works around a throw-scroll bug in OS X Webkit
4301
- if (webkit && mac && cm.display.currentWheelTarget == node)
4302
- { node.style.display = "none" }
4303
- else
4304
- { node.parentNode.removeChild(node) }
4305
- return next
4306
- }
4307
-
4308
- var view = display.view, lineN = display.viewFrom
4309
- // Loop over the elements in the view, syncing cur (the DOM nodes
4310
- // in display.lineDiv) with the view as we go.
4311
- for (var i = 0; i < view.length; i++) {
4312
- var lineView = view[i]
4313
- if (lineView.hidden) {
4314
- } else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet
4315
- var node = buildLineElement(cm, lineView, lineN, dims)
4316
- container.insertBefore(node, cur)
4317
- } else { // Already drawn
4318
- while (cur != lineView.node) { cur = rm(cur) }
4319
- var updateNumber = lineNumbers && updateNumbersFrom != null &&
4320
- updateNumbersFrom <= lineN && lineView.lineNumber
4321
- if (lineView.changes) {
4322
- if (indexOf(lineView.changes, "gutter") > -1) { updateNumber = false }
4323
- updateLineForChanges(cm, lineView, lineN, dims)
4324
- }
4325
- if (updateNumber) {
4326
- removeChildren(lineView.lineNumber)
4327
- lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)))
4328
- }
4329
- cur = lineView.node.nextSibling
4330
- }
4331
- lineN += lineView.size
4332
- }
4333
- while (cur) { cur = rm(cur) }
4334
- }
4335
-
4336
- function updateGutterSpace(cm) {
4337
- var width = cm.display.gutters.offsetWidth
4338
- cm.display.sizer.style.marginLeft = width + "px"
4339
- }
4340
-
4341
- function setDocumentHeight(cm, measure) {
4342
- cm.display.sizer.style.minHeight = measure.docHeight + "px"
4343
- cm.display.heightForcer.style.top = measure.docHeight + "px"
4344
- cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "px"
4345
- }
4346
-
4347
- // Rebuild the gutter elements, ensure the margin to the left of the
4348
- // code matches their width.
4349
- function updateGutters(cm) {
4350
- var gutters = cm.display.gutters, specs = cm.options.gutters
4351
- removeChildren(gutters)
4352
- var i = 0
4353
- for (; i < specs.length; ++i) {
4354
- var gutterClass = specs[i]
4355
- var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass))
4356
- if (gutterClass == "CodeMirror-linenumbers") {
4357
- cm.display.lineGutter = gElt
4358
- gElt.style.width = (cm.display.lineNumWidth || 1) + "px"
4359
- }
4360
- }
4361
- gutters.style.display = i ? "" : "none"
4362
- updateGutterSpace(cm)
4363
- }
4364
-
4365
- // Make sure the gutters options contains the element
4366
- // "CodeMirror-linenumbers" when the lineNumbers option is true.
4367
- function setGuttersForLineNumbers(options) {
4368
- var found = indexOf(options.gutters, "CodeMirror-linenumbers")
4369
- if (found == -1 && options.lineNumbers) {
4370
- options.gutters = options.gutters.concat(["CodeMirror-linenumbers"])
4371
- } else if (found > -1 && !options.lineNumbers) {
4372
- options.gutters = options.gutters.slice(0)
4373
- options.gutters.splice(found, 1)
4374
- }
4375
- }
4376
-
4377
- var wheelSamples = 0;
4378
- var wheelPixelsPerUnit = null;
4379
- // Fill in a browser-detected starting value on browsers where we
4380
- // know one. These don't have to be accurate -- the result of them
4381
- // being wrong would just be a slight flicker on the first wheel
4382
- // scroll (if it is large enough).
4383
- if (ie) { wheelPixelsPerUnit = -.53 }
4384
- else if (gecko) { wheelPixelsPerUnit = 15 }
4385
- else if (chrome) { wheelPixelsPerUnit = -.7 }
4386
- else if (safari) { wheelPixelsPerUnit = -1/3 }
4387
-
4388
- function wheelEventDelta(e) {
4389
- var dx = e.wheelDeltaX, dy = e.wheelDeltaY
4390
- if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) { dx = e.detail }
4391
- if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) { dy = e.detail }
4392
- else if (dy == null) { dy = e.wheelDelta }
4393
- return {x: dx, y: dy}
4394
- }
4395
- function wheelEventPixels(e) {
4396
- var delta = wheelEventDelta(e)
4397
- delta.x *= wheelPixelsPerUnit
4398
- delta.y *= wheelPixelsPerUnit
4399
- return delta
4400
- }
4401
-
4402
- function onScrollWheel(cm, e) {
4403
- var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y
4404
-
4405
- var display = cm.display, scroll = display.scroller
4406
- // Quit if there's nothing to scroll here
4407
- var canScrollX = scroll.scrollWidth > scroll.clientWidth
4408
- var canScrollY = scroll.scrollHeight > scroll.clientHeight
4409
- if (!(dx && canScrollX || dy && canScrollY)) { return }
4410
-
4411
- // Webkit browsers on OS X abort momentum scrolls when the target
4412
- // of the scroll event is removed from the scrollable element.
4413
- // This hack (see related code in patchDisplay) makes sure the
4414
- // element is kept around.
4415
- if (dy && mac && webkit) {
4416
- outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {
4417
- for (var i = 0; i < view.length; i++) {
4418
- if (view[i].node == cur) {
4419
- cm.display.currentWheelTarget = cur
4420
- break outer
4421
- }
4422
- }
4423
  }
4424
  }
4425
 
4426
- // On some browsers, horizontal scrolling will cause redraws to
4427
- // happen before the gutter has been realigned, causing it to
4428
- // wriggle around in a most unseemly way. When we have an
4429
- // estimated pixels/delta value, we just handle horizontal
4430
- // scrolling entirely here. It'll be slightly off from native, but
4431
- // better than glitching out.
4432
- if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {
4433
- if (dy && canScrollY)
4434
- { updateScrollTop(cm, Math.max(0, scroll.scrollTop + dy * wheelPixelsPerUnit)) }
4435
- setScrollLeft(cm, Math.max(0, scroll.scrollLeft + dx * wheelPixelsPerUnit))
4436
- // Only prevent default scrolling if vertical scrolling is
4437
- // actually possible. Otherwise, it causes vertical scroll
4438
- // jitter on OSX trackpads when deltaX is small and deltaY
4439
- // is large (issue #3579)
4440
- if (!dy || (dy && canScrollY))
4441
- { e_preventDefault(e) }
4442
- display.wheelStartX = null // Abort measurement, if in progress
4443
- return
4444
- }
4445
-
4446
- // 'Project' the visible viewport to cover the area that is being
4447
- // scrolled into view (if we know enough to estimate it).
4448
- if (dy && wheelPixelsPerUnit != null) {
4449
- var pixels = dy * wheelPixelsPerUnit
4450
- var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight
4451
- if (pixels < 0) { top = Math.max(0, top + pixels - 50) }
4452
- else { bot = Math.min(cm.doc.height, bot + pixels + 50) }
4453
- updateDisplaySimple(cm, {top: top, bottom: bot})
4454
- }
4455
-
4456
- if (wheelSamples < 20) {
4457
- if (display.wheelStartX == null) {
4458
- display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop
4459
- display.wheelDX = dx; display.wheelDY = dy
4460
- setTimeout(function () {
4461
- if (display.wheelStartX == null) { return }
4462
- var movedX = scroll.scrollLeft - display.wheelStartX
4463
- var movedY = scroll.scrollTop - display.wheelStartY
4464
- var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||
4465
- (movedX && display.wheelDX && movedX / display.wheelDX)
4466
- display.wheelStartX = display.wheelStartY = null
4467
- if (!sample) { return }
4468
- wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1)
4469
- ++wheelSamples
4470
- }, 200)
4471
- } else {
4472
- display.wheelDX += dx; display.wheelDY += dy
4473
- }
4474
  }
4475
- }
4476
 
4477
- // Selection objects are immutable. A new one is created every time
4478
- // the selection changes. A selection is one or more non-overlapping
4479
- // (and non-touching) ranges, sorted, and an integer that indicates
4480
- // which one is the primary selection (the one that's scrolled into
4481
- // view, that getCursor returns, etc).
4482
- var Selection = function(ranges, primIndex) {
4483
- this.ranges = ranges
4484
- this.primIndex = primIndex
4485
- };
4486
 
4487
- Selection.prototype.primary = function () { return this.ranges[this.primIndex] };
 
 
4488
 
4489
- Selection.prototype.equals = function (other) {
4490
- var this$1 = this;
4491
 
4492
- if (other == this) { return true }
4493
- if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) { return false }
4494
- for (var i = 0; i < this.ranges.length; i++) {
4495
- var here = this$1.ranges[i], there = other.ranges[i]
4496
- if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) { return false }
 
 
 
 
 
 
 
 
 
4497
  }
4498
- return true
4499
- };
4500
 
4501
- Selection.prototype.deepCopy = function () {
4502
- var this$1 = this;
 
 
 
 
4503
 
4504
- var out = []
4505
- for (var i = 0; i < this.ranges.length; i++)
4506
- { out[i] = new Range(copyPos(this$1.ranges[i].anchor), copyPos(this$1.ranges[i].head)) }
4507
- return new Selection(out, this.primIndex)
4508
- };
4509
 
4510
- Selection.prototype.somethingSelected = function () {
4511
- var this$1 = this;
 
 
 
4512
 
4513
- for (var i = 0; i < this.ranges.length; i++)
4514
- { if (!this$1.ranges[i].empty()) { return true } }
4515
- return false
4516
- };
 
4517
 
4518
- Selection.prototype.contains = function (pos, end) {
4519
- var this$1 = this;
4520
 
4521
- if (!end) { end = pos }
4522
- for (var i = 0; i < this.ranges.length; i++) {
4523
- var range = this$1.ranges[i]
4524
- if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)
4525
- { return i }
4526
- }
4527
- return -1
4528
- };
4529
-
4530
- var Range = function(anchor, head) {
4531
- this.anchor = anchor; this.head = head
4532
- };
4533
-
4534
- Range.prototype.from = function () { return minPos(this.anchor, this.head) };
4535
- Range.prototype.to = function () { return maxPos(this.anchor, this.head) };
4536
- Range.prototype.empty = function () { return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch };
4537
-
4538
- // Take an unsorted, potentially overlapping set of ranges, and
4539
- // build a selection out of it. 'Consumes' ranges array (modifying
4540
- // it).
4541
- function normalizeSelection(ranges, primIndex) {
4542
- var prim = ranges[primIndex]
4543
- ranges.sort(function (a, b) { return cmp(a.from(), b.from()); })
4544
- primIndex = indexOf(ranges, prim)
4545
- for (var i = 1; i < ranges.length; i++) {
4546
- var cur = ranges[i], prev = ranges[i - 1]
4547
- if (cmp(prev.to(), cur.from()) >= 0) {
4548
- var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to())
4549
- var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head
4550
- if (i <= primIndex) { --primIndex }
4551
- ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to))
4552
- }
4553
- }
4554
- return new Selection(ranges, primIndex)
4555
- }
4556
-
4557
- function simpleSelection(anchor, head) {
4558
- return new Selection([new Range(anchor, head || anchor)], 0)
4559
- }
4560
-
4561
- // Compute the position of the end of a change (its 'to' property
4562
- // refers to the pre-change end).
4563
- function changeEnd(change) {
4564
- if (!change.text) { return change.to }
4565
- return Pos(change.from.line + change.text.length - 1,
4566
- lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0))
4567
- }
4568
-
4569
- // Adjust a position to refer to the post-change position of the
4570
- // same text, or the end of the change if the change covers it.
4571
- function adjustForChange(pos, change) {
4572
- if (cmp(pos, change.from) < 0) { return pos }
4573
- if (cmp(pos, change.to) <= 0) { return changeEnd(change) }
4574
-
4575
- var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch
4576
- if (pos.line == change.to.line) { ch += changeEnd(change).ch - change.to.ch }
4577
- return Pos(line, ch)
4578
- }
4579
-
4580
- function computeSelAfterChange(doc, change) {
4581
- var out = []
4582
- for (var i = 0; i < doc.sel.ranges.length; i++) {
4583
- var range = doc.sel.ranges[i]
4584
- out.push(new Range(adjustForChange(range.anchor, change),
4585
- adjustForChange(range.head, change)))
4586
- }
4587
- return normalizeSelection(out, doc.sel.primIndex)
4588
- }
4589
-
4590
- function offsetPos(pos, old, nw) {
4591
- if (pos.line == old.line)
4592
- { return Pos(nw.line, pos.ch - old.ch + nw.ch) }
4593
- else
4594
- { return Pos(nw.line + (pos.line - old.line), pos.ch) }
4595
- }
4596
-
4597
- // Used by replaceSelections to allow moving the selection to the
4598
- // start or around the replaced test. Hint may be "start" or "around".
4599
- function computeReplacedSel(doc, changes, hint) {
4600
- var out = []
4601
- var oldPrev = Pos(doc.first, 0), newPrev = oldPrev
4602
- for (var i = 0; i < changes.length; i++) {
4603
- var change = changes[i]
4604
- var from = offsetPos(change.from, oldPrev, newPrev)
4605
- var to = offsetPos(changeEnd(change), oldPrev, newPrev)
4606
- oldPrev = change.to
4607
- newPrev = to
4608
- if (hint == "around") {
4609
- var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0
4610
- out[i] = new Range(inv ? to : from, inv ? from : to)
4611
  } else {
4612
- out[i] = new Range(from, from)
4613
- }
4614
- }
4615
- return new Selection(out, doc.sel.primIndex)
4616
- }
4617
-
4618
- // Used to get the editor into a consistent state again when options change.
4619
-
4620
- function loadMode(cm) {
4621
- cm.doc.mode = getMode(cm.options, cm.doc.modeOption)
4622
- resetModeState(cm)
4623
- }
4624
-
4625
- function resetModeState(cm) {
4626
- cm.doc.iter(function (line) {
4627
- if (line.stateAfter) { line.stateAfter = null }
4628
- if (line.styles) { line.styles = null }
4629
- })
4630
- cm.doc.modeFrontier = cm.doc.highlightFrontier = cm.doc.first
4631
- startWorker(cm, 100)
4632
- cm.state.modeGen++
4633
- if (cm.curOp) { regChange(cm) }
4634
- }
4635
-
4636
- // DOCUMENT DATA STRUCTURE
4637
-
4638
- // By default, updates that start and end at the beginning of a line
4639
- // are treated specially, in order to make the association of line
4640
- // widgets and marker elements with the text behave more intuitive.
4641
- function isWholeLineUpdate(doc, change) {
4642
- return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" &&
4643
- (!doc.cm || doc.cm.options.wholeLineUpdateBefore)
4644
- }
4645
-
4646
- // Perform a change on the document data structure.
4647
- function updateDoc(doc, change, markedSpans, estimateHeight) {
4648
- function spansFor(n) {return markedSpans ? markedSpans[n] : null}
4649
- function update(line, text, spans) {
4650
- updateLine(line, text, spans, estimateHeight)
4651
- signalLater(line, "change", line, change)
4652
- }
4653
- function linesFor(start, end) {
4654
- var result = []
4655
- for (var i = start; i < end; ++i)
4656
- { result.push(new Line(text[i], spansFor(i), estimateHeight)) }
4657
- return result
4658
  }
4659
 
4660
- var from = change.from, to = change.to, text = change.text
4661
- var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line)
4662
- var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line
4663
-
4664
- // Adjust the line structure
4665
- if (change.full) {
4666
- doc.insert(0, linesFor(0, text.length))
4667
- doc.remove(text.length, doc.size - text.length)
4668
- } else if (isWholeLineUpdate(doc, change)) {
4669
- // This is a whole-line replace. Treated specially to make
4670
- // sure line objects move the way they are supposed to.
4671
- var added = linesFor(0, text.length - 1)
4672
- update(lastLine, lastLine.text, lastSpans)
4673
- if (nlines) { doc.remove(from.line, nlines) }
4674
- if (added.length) { doc.insert(from.line, added) }
4675
- } else if (firstLine == lastLine) {
4676
- if (text.length == 1) {
4677
- update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans)
4678
- } else {
4679
- var added$1 = linesFor(1, text.length - 1)
4680
- added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight))
4681
- update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0))
4682
- doc.insert(from.line + 1, added$1)
4683
- }
4684
- } else if (text.length == 1) {
4685
- update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0))
4686
- doc.remove(from.line + 1, nlines)
4687
- } else {
4688
- update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0))
4689
- update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans)
4690
- var added$2 = linesFor(1, text.length - 1)
4691
- if (nlines > 1) { doc.remove(from.line + 1, nlines - 1) }
4692
- doc.insert(from.line + 1, added$2)
4693
- }
4694
-
4695
- signalLater(doc, "change", doc, change)
4696
- }
4697
-
4698
- // Call f for all linked documents.
4699
- function linkedDocs(doc, f, sharedHistOnly) {
4700
- function propagate(doc, skip, sharedHist) {
4701
- if (doc.linked) { for (var i = 0; i < doc.linked.length; ++i) {
4702
- var rel = doc.linked[i]
4703
- if (rel.doc == skip) { continue }
4704
- var shared = sharedHist && rel.sharedHist
4705
- if (sharedHistOnly && !shared) { continue }
4706
- f(rel.doc, shared)
4707
- propagate(rel.doc, doc, shared)
4708
- } }
4709
  }
4710
- propagate(doc, null, true)
4711
- }
4712
-
4713
- // Attach a document to an editor.
4714
- function attachDoc(cm, doc) {
4715
- if (doc.cm) { throw new Error("This document is already in use.") }
4716
- cm.doc = doc
4717
- doc.cm = cm
4718
- estimateLineHeights(cm)
4719
- loadMode(cm)
4720
- setDirectionClass(cm)
4721
- if (!cm.options.lineWrapping) { findMaxLine(cm) }
4722
- cm.options.mode = doc.modeOption
4723
- regChange(cm)
4724
- }
4725
-
4726
- function setDirectionClass(cm) {
4727
- ;(cm.doc.direction == "rtl" ? addClass : rmClass)(cm.display.lineDiv, "CodeMirror-rtl")
4728
- }
4729
-
4730
- function directionChanged(cm) {
4731
- runInOp(cm, function () {
4732
- setDirectionClass(cm)
4733
- regChange(cm)
4734
- })
4735
- }
4736
-
4737
- function History(startGen) {
4738
- // Arrays of change events and selections. Doing something adds an
4739
- // event to done and clears undo. Undoing moves events from done
4740
- // to undone, redoing moves them in the other direction.
4741
- this.done = []; this.undone = []
4742
- this.undoDepth = Infinity
4743
- // Used to track when changes can be merged into a single undo
4744
- // event
4745
- this.lastModTime = this.lastSelTime = 0
4746
- this.lastOp = this.lastSelOp = null
4747
- this.lastOrigin = this.lastSelOrigin = null
4748
- // Used by the isClean() method
4749
- this.generation = this.maxGeneration = startGen || 1
4750
- }
4751
-
4752
- // Create a history change event from an updateDoc-style change
4753
- // object.
4754
- function historyChangeFromChange(doc, change) {
4755
- var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)}
4756
- attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1)
4757
- linkedDocs(doc, function (doc) { return attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true)
4758
- return histChange
4759
- }
4760
-
4761
- // Pop all selection events off the end of a history array. Stop at
4762
- // a change event.
4763
- function clearSelectionEvents(array) {
4764
- while (array.length) {
4765
- var last = lst(array)
4766
- if (last.ranges) { array.pop() }
4767
- else { break }
4768
- }
4769
- }
4770
-
4771
- // Find the top change event in the history. Pop off selection
4772
- // events that are in the way.
4773
- function lastChangeEvent(hist, force) {
4774
- if (force) {
4775
- clearSelectionEvents(hist.done)
4776
- return lst(hist.done)
4777
- } else if (hist.done.length && !lst(hist.done).ranges) {
4778
- return lst(hist.done)
4779
- } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {
4780
- hist.done.pop()
4781
- return lst(hist.done)
4782
- }
4783
- }
4784
-
4785
- // Register a change in the history. Merges changes that are within
4786
- // a single operation, or are close together with an origin that
4787
- // allows merging (starting with "+") into a single event.
4788
- function addChangeToHistory(doc, change, selAfter, opId) {
4789
- var hist = doc.history
4790
- hist.undone.length = 0
4791
- var time = +new Date, cur
4792
- var last
4793
-
4794
- if ((hist.lastOp == opId ||
4795
- hist.lastOrigin == change.origin && change.origin &&
4796
- ((change.origin.charAt(0) == "+" && hist.lastModTime > time - (doc.cm ? doc.cm.options.historyEventDelay : 500)) ||
4797
- change.origin.charAt(0) == "*")) &&
4798
- (cur = lastChangeEvent(hist, hist.lastOp == opId))) {
4799
- // Merge this change into the last event
4800
- last = lst(cur.changes)
4801
- if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {
4802
- // Optimized case for simple insertion -- don't want to add
4803
- // new changesets for every character typed
4804
- last.to = changeEnd(change)
4805
- } else {
4806
- // Add new sub-event
4807
- cur.changes.push(historyChangeFromChange(doc, change))
4808
- }
4809
- } else {
4810
- // Can not be merged, start a new event.
4811
- var before = lst(hist.done)
4812
- if (!before || !before.ranges)
4813
- { pushSelectionToHistory(doc.sel, hist.done) }
4814
- cur = {changes: [historyChangeFromChange(doc, change)],
4815
- generation: hist.generation}
4816
- hist.done.push(cur)
4817
- while (hist.done.length > hist.undoDepth) {
4818
- hist.done.shift()
4819
- if (!hist.done[0].ranges) { hist.done.shift() }
4820
- }
4821
- }
4822
- hist.done.push(selAfter)
4823
- hist.generation = ++hist.maxGeneration
4824
- hist.lastModTime = hist.lastSelTime = time
4825
- hist.lastOp = hist.lastSelOp = opId
4826
- hist.lastOrigin = hist.lastSelOrigin = change.origin
4827
-
4828
- if (!last) { signal(doc, "historyAdded") }
4829
- }
4830
-
4831
- function selectionEventCanBeMerged(doc, origin, prev, sel) {
4832
- var ch = origin.charAt(0)
4833
- return ch == "*" ||
4834
- ch == "+" &&
4835
- prev.ranges.length == sel.ranges.length &&
4836
- prev.somethingSelected() == sel.somethingSelected() &&
4837
- new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500)
4838
- }
4839
-
4840
- // Called whenever the selection changes, sets the new selection as
4841
- // the pending selection in the history, and pushes the old pending
4842
- // selection into the 'done' array when it was significantly
4843
- // different (in number of selected ranges, emptiness, or time).
4844
- function addSelectionToHistory(doc, sel, opId, options) {
4845
- var hist = doc.history, origin = options && options.origin
4846
-
4847
- // A new event is started when the previous origin does not match
4848
- // the current, or the origins don't allow matching. Origins
4849
- // starting with * are always merged, those starting with + are
4850
- // merged when similar and close together in time.
4851
- if (opId == hist.lastSelOp ||
4852
- (origin && hist.lastSelOrigin == origin &&
4853
- (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||
4854
- selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))
4855
- { hist.done[hist.done.length - 1] = sel }
4856
- else
4857
- { pushSelectionToHistory(sel, hist.done) }
4858
-
4859
- hist.lastSelTime = +new Date
4860
- hist.lastSelOrigin = origin
4861
- hist.lastSelOp = opId
4862
- if (options && options.clearRedo !== false)
4863
- { clearSelectionEvents(hist.undone) }
4864
- }
4865
-
4866
- function pushSelectionToHistory(sel, dest) {
4867
- var top = lst(dest)
4868
- if (!(top && top.ranges && top.equals(sel)))
4869
- { dest.push(sel) }
4870
- }
4871
-
4872
- // Used to store marked span information in the history.
4873
- function attachLocalSpans(doc, change, from, to) {
4874
- var existing = change["spans_" + doc.id], n = 0
4875
- doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) {
4876
- if (line.markedSpans)
4877
- { (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans }
4878
- ++n
4879
- })
4880
- }
4881
-
4882
- // When un/re-doing restores text containing marked spans, those
4883
- // that have been explicitly cleared should not be restored.
4884
- function removeClearedSpans(spans) {
4885
- if (!spans) { return null }
4886
- var out
4887
- for (var i = 0; i < spans.length; ++i) {
4888
- if (spans[i].marker.explicitlyCleared) { if (!out) { out = spans.slice(0, i) } }
4889
- else if (out) { out.push(spans[i]) }
4890
- }
4891
- return !out ? spans : out.length ? out : null
4892
- }
4893
-
4894
- // Retrieve and filter the old marked spans stored in a change event.
4895
- function getOldSpans(doc, change) {
4896
- var found = change["spans_" + doc.id]
4897
- if (!found) { return null }
4898
- var nw = []
4899
- for (var i = 0; i < change.text.length; ++i)
4900
- { nw.push(removeClearedSpans(found[i])) }
4901
- return nw
4902
- }
4903
-
4904
- // Used for un/re-doing changes from the history. Combines the
4905
- // result of computing the existing spans with the set of spans that
4906
- // existed in the history (so that deleting around a span and then
4907
- // undoing brings back the span).
4908
- function mergeOldSpans(doc, change) {
4909
- var old = getOldSpans(doc, change)
4910
- var stretched = stretchSpansOverChange(doc, change)
4911
- if (!old) { return stretched }
4912
- if (!stretched) { return old }
4913
-
4914
- for (var i = 0; i < old.length; ++i) {
4915
- var oldCur = old[i], stretchCur = stretched[i]
4916
- if (oldCur && stretchCur) {
4917
- spans: for (var j = 0; j < stretchCur.length; ++j) {
4918
- var span = stretchCur[j]
4919
- for (var k = 0; k < oldCur.length; ++k)
4920
- { if (oldCur[k].marker == span.marker) { continue spans } }
4921
- oldCur.push(span)
4922
- }
4923
- } else if (stretchCur) {
4924
- old[i] = stretchCur
4925
- }
4926
- }
4927
- return old
4928
- }
4929
-
4930
- // Used both to provide a JSON-safe object in .getHistory, and, when
4931
- // detaching a document, to split the history in two
4932
- function copyHistoryArray(events, newGroup, instantiateSel) {
4933
- var copy = []
4934
- for (var i = 0; i < events.length; ++i) {
4935
- var event = events[i]
4936
- if (event.ranges) {
4937
- copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event)
4938
- continue
4939
- }
4940
- var changes = event.changes, newChanges = []
4941
- copy.push({changes: newChanges})
4942
- for (var j = 0; j < changes.length; ++j) {
4943
- var change = changes[j], m = (void 0)
4944
- newChanges.push({from: change.from, to: change.to, text: change.text})
4945
- if (newGroup) { for (var prop in change) { if (m = prop.match(/^spans_(\d+)$/)) {
4946
- if (indexOf(newGroup, Number(m[1])) > -1) {
4947
- lst(newChanges)[prop] = change[prop]
4948
- delete change[prop]
4949
- }
4950
- } } }
4951
- }
4952
- }
4953
- return copy
4954
- }
4955
-
4956
- // The 'scroll' parameter given to many of these indicated whether
4957
- // the new cursor position should be scrolled into view after
4958
- // modifying the selection.
4959
-
4960
- // If shift is held or the extend flag is set, extends a range to
4961
- // include a given position (and optionally a second position).
4962
- // Otherwise, simply returns the range between the given positions.
4963
- // Used for cursor motion and such.
4964
- function extendRange(range, head, other, extend) {
4965
- if (extend) {
4966
- var anchor = range.anchor
4967
- if (other) {
4968
- var posBefore = cmp(head, anchor) < 0
4969
- if (posBefore != (cmp(other, anchor) < 0)) {
4970
- anchor = head
4971
- head = other
4972
- } else if (posBefore != (cmp(head, other) < 0)) {
4973
- head = other
4974
- }
4975
- }
4976
- return new Range(anchor, head)
4977
- } else {
4978
- return new Range(other || head, head)
4979
- }
4980
- }
4981
-
4982
- // Extend the primary selection range, discard the rest.
4983
- function extendSelection(doc, head, other, options, extend) {
4984
- if (extend == null) { extend = doc.cm && (doc.cm.display.shift || doc.extend) }
4985
- setSelection(doc, new Selection([extendRange(doc.sel.primary(), head, other, extend)], 0), options)
4986
- }
4987
-
4988
- // Extend all selections (pos is an array of selections with length
4989
- // equal the number of selections)
4990
- function extendSelections(doc, heads, options) {
4991
- var out = []
4992
- var extend = doc.cm && (doc.cm.display.shift || doc.extend)
4993
- for (var i = 0; i < doc.sel.ranges.length; i++)
4994
- { out[i] = extendRange(doc.sel.ranges[i], heads[i], null, extend) }
4995
- var newSel = normalizeSelection(out, doc.sel.primIndex)
4996
- setSelection(doc, newSel, options)
4997
- }
4998
-
4999
- // Updates a single range in the selection.
5000
- function replaceOneSelection(doc, i, range, options) {
5001
- var ranges = doc.sel.ranges.slice(0)
5002
- ranges[i] = range
5003
- setSelection(doc, normalizeSelection(ranges, doc.sel.primIndex), options)
5004
- }
5005
-
5006
- // Reset the selection to a single range.
5007
- function setSimpleSelection(doc, anchor, head, options) {
5008
- setSelection(doc, simpleSelection(anchor, head), options)
5009
- }
5010
-
5011
- // Give beforeSelectionChange handlers a change to influence a
5012
- // selection update.
5013
- function filterSelectionChange(doc, sel, options) {
5014
- var obj = {
5015
- ranges: sel.ranges,
5016
- update: function(ranges) {
5017
- var this$1 = this;
5018
 
5019
- this.ranges = []
5020
- for (var i = 0; i < ranges.length; i++)
5021
- { this$1.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),
5022
- clipPos(doc, ranges[i].head)) }
5023
- },
5024
- origin: options && options.origin
5025
- }
5026
- signal(doc, "beforeSelectionChange", doc, obj)
5027
- if (doc.cm) { signal(doc.cm, "beforeSelectionChange", doc.cm, obj) }
5028
- if (obj.ranges != sel.ranges) { return normalizeSelection(obj.ranges, obj.ranges.length - 1) }
5029
- else { return sel }
5030
- }
5031
-
5032
- function setSelectionReplaceHistory(doc, sel, options) {
5033
- var done = doc.history.done, last = lst(done)
5034
- if (last && last.ranges) {
5035
- done[done.length - 1] = sel
5036
- setSelectionNoUndo(doc, sel, options)
5037
- } else {
5038
- setSelection(doc, sel, options)
5039
- }
5040
- }
5041
-
5042
- // Set a new selection.
5043
- function setSelection(doc, sel, options) {
5044
- setSelectionNoUndo(doc, sel, options)
5045
- addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options)
5046
- }
5047
-
5048
- function setSelectionNoUndo(doc, sel, options) {
5049
- if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange"))
5050
- { sel = filterSelectionChange(doc, sel, options) }
5051
-
5052
- var bias = options && options.bias ||
5053
- (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1)
5054
- setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true))
5055
-
5056
- if (!(options && options.scroll === false) && doc.cm)
5057
- { ensureCursorVisible(doc.cm) }
5058
- }
5059
-
5060
- function setSelectionInner(doc, sel) {
5061
- if (sel.equals(doc.sel)) { return }
5062
-
5063
- doc.sel = sel
5064
-
5065
- if (doc.cm) {
5066
- doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = true
5067
- signalCursorActivity(doc.cm)
5068
- }
5069
- signalLater(doc, "cursorActivity", doc)
5070
- }
5071
-
5072
- // Verify that the selection does not partially select any atomic
5073
- // marked ranges.
5074
- function reCheckSelection(doc) {
5075
- setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false))
5076
- }
5077
-
5078
- // Return a selection that does not partially select any atomic
5079
- // ranges.
5080
- function skipAtomicInSelection(doc, sel, bias, mayClear) {
5081
- var out
5082
- for (var i = 0; i < sel.ranges.length; i++) {
5083
- var range = sel.ranges[i]
5084
- var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i]
5085
- var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear)
5086
- var newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear)
5087
- if (out || newAnchor != range.anchor || newHead != range.head) {
5088
- if (!out) { out = sel.ranges.slice(0, i) }
5089
- out[i] = new Range(newAnchor, newHead)
5090
- }
5091
- }
5092
- return out ? normalizeSelection(out, sel.primIndex) : sel
5093
- }
5094
-
5095
- function skipAtomicInner(doc, pos, oldPos, dir, mayClear) {
5096
- var line = getLine(doc, pos.line)
5097
- if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
5098
- var sp = line.markedSpans[i], m = sp.marker
5099
- if ((sp.from == null || (m.inclusiveLeft ? sp.from <= pos.ch : sp.from < pos.ch)) &&
5100
- (sp.to == null || (m.inclusiveRight ? sp.to >= pos.ch : sp.to > pos.ch))) {
5101
- if (mayClear) {
5102
- signal(m, "beforeCursorEnter")
5103
- if (m.explicitlyCleared) {
5104
- if (!line.markedSpans) { break }
5105
- else {--i; continue}
5106
- }
5107
- }
5108
- if (!m.atomic) { continue }
5109
-
5110
- if (oldPos) {
5111
- var near = m.find(dir < 0 ? 1 : -1), diff = (void 0)
5112
- if (dir < 0 ? m.inclusiveRight : m.inclusiveLeft)
5113
- { near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null) }
5114
- if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0))
5115
- { return skipAtomicInner(doc, near, pos, dir, mayClear) }
5116
- }
5117
-
5118
- var far = m.find(dir < 0 ? -1 : 1)
5119
- if (dir < 0 ? m.inclusiveLeft : m.inclusiveRight)
5120
- { far = movePos(doc, far, dir, far.line == pos.line ? line : null) }
5121
- return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null
5122
- }
5123
- } }
5124
- return pos
5125
- }
5126
-
5127
- // Ensure a given position is not inside an atomic range.
5128
- function skipAtomic(doc, pos, oldPos, bias, mayClear) {
5129
- var dir = bias || 1
5130
- var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) ||
5131
- (!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) ||
5132
- skipAtomicInner(doc, pos, oldPos, -dir, mayClear) ||
5133
- (!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true))
5134
- if (!found) {
5135
- doc.cantEdit = true
5136
- return Pos(doc.first, 0)
5137
- }
5138
- return found
5139
- }
5140
-
5141
- function movePos(doc, pos, dir, line) {
5142
- if (dir < 0 && pos.ch == 0) {
5143
- if (pos.line > doc.first) { return clipPos(doc, Pos(pos.line - 1)) }
5144
- else { return null }
5145
- } else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) {
5146
- if (pos.line < doc.first + doc.size - 1) { return Pos(pos.line + 1, 0) }
5147
- else { return null }
5148
- } else {
5149
- return new Pos(pos.line, pos.ch + dir)
5150
- }
5151
- }
5152
-
5153
- function selectAll(cm) {
5154
- cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll)
5155
- }
5156
-
5157
- // UPDATING
5158
-
5159
- // Allow "beforeChange" event handlers to influence a change
5160
- function filterChange(doc, change, update) {
5161
- var obj = {
5162
- canceled: false,
5163
- from: change.from,
5164
- to: change.to,
5165
- text: change.text,
5166
- origin: change.origin,
5167
- cancel: function () { return obj.canceled = true; }
5168
- }
5169
- if (update) { obj.update = function (from, to, text, origin) {
5170
- if (from) { obj.from = clipPos(doc, from) }
5171
- if (to) { obj.to = clipPos(doc, to) }
5172
- if (text) { obj.text = text }
5173
- if (origin !== undefined) { obj.origin = origin }
5174
- } }
5175
- signal(doc, "beforeChange", doc, obj)
5176
- if (doc.cm) { signal(doc.cm, "beforeChange", doc.cm, obj) }
5177
-
5178
- if (obj.canceled) { return null }
5179
- return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin}
5180
- }
5181
-
5182
- // Apply a change to a document, and add it to the document's
5183
- // history, and propagating it to all linked documents.
5184
- function makeChange(doc, change, ignoreReadOnly) {
5185
- if (doc.cm) {
5186
- if (!doc.cm.curOp) { return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly) }
5187
- if (doc.cm.state.suppressEdits) { return }
5188
- }
5189
-
5190
- if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) {
5191
- change = filterChange(doc, change, true)
5192
- if (!change) { return }
5193
- }
5194
-
5195
- // Possibly split or suppress the update based on the presence
5196
- // of read-only spans in its range.
5197
- var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to)
5198
- if (split) {
5199
- for (var i = split.length - 1; i >= 0; --i)
5200
- { makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text, origin: change.origin}) }
5201
- } else {
5202
- makeChangeInner(doc, change)
5203
- }
5204
- }
5205
-
5206
- function makeChangeInner(doc, change) {
5207
- if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) { return }
5208
- var selAfter = computeSelAfterChange(doc, change)
5209
- addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN)
5210
-
5211
- makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change))
5212
- var rebased = []
5213
-
5214
- linkedDocs(doc, function (doc, sharedHist) {
5215
- if (!sharedHist && indexOf(rebased, doc.history) == -1) {
5216
- rebaseHist(doc.history, change)
5217
- rebased.push(doc.history)
5218
- }
5219
- makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change))
5220
- })
5221
- }
5222
-
5223
- // Revert a change stored in a document's history.
5224
- function makeChangeFromHistory(doc, type, allowSelectionOnly) {
5225
- var suppress = doc.cm && doc.cm.state.suppressEdits
5226
- if (suppress && !allowSelectionOnly) { return }
5227
-
5228
- var hist = doc.history, event, selAfter = doc.sel
5229
- var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done
5230
-
5231
- // Verify that there is a useable event (so that ctrl-z won't
5232
- // needlessly clear selection events)
5233
- var i = 0
5234
- for (; i < source.length; i++) {
5235
- event = source[i]
5236
- if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)
5237
- { break }
5238
- }
5239
- if (i == source.length) { return }
5240
- hist.lastOrigin = hist.lastSelOrigin = null
5241
-
5242
- for (;;) {
5243
- event = source.pop()
5244
- if (event.ranges) {
5245
- pushSelectionToHistory(event, dest)
5246
- if (allowSelectionOnly && !event.equals(doc.sel)) {
5247
- setSelection(doc, event, {clearRedo: false})
5248
- return
5249
- }
5250
- selAfter = event
5251
- } else if (suppress) {
5252
- source.push(event)
5253
- return
5254
- } else { break }
5255
  }
5256
 
5257
- // Build up a reverse change object to add to the opposite history
5258
- // stack (redo when undoing, and vice versa).
5259
- var antiChanges = []
5260
- pushSelectionToHistory(selAfter, dest)
5261
- dest.push({changes: antiChanges, generation: hist.generation})
5262
- hist.generation = event.generation || ++hist.maxGeneration
 
5263
 
5264
- var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")
 
 
 
 
5265
 
5266
- var loop = function ( i ) {
5267
- var change = event.changes[i]
5268
- change.origin = type
5269
- if (filter && !filterChange(doc, change, false)) {
5270
- source.length = 0
5271
- return {}
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
5272
  }
5273
-
5274
- antiChanges.push(historyChangeFromChange(doc, change))
5275
-
5276
- var after = i ? computeSelAfterChange(doc, change) : lst(source)
5277
- makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change))
5278
- if (!i && doc.cm) { doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)}) }
5279
- var rebased = []
5280
-
5281
- // Propagate to the linked documents
5282
- linkedDocs(doc, function (doc, sharedHist) {
5283
- if (!sharedHist && indexOf(rebased, doc.history) == -1) {
5284
- rebaseHist(doc.history, change)
5285
- rebased.push(doc.history)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
5286
  }
5287
- makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change))
5288
- })
5289
- };
5290
 
5291
- for (var i$1 = event.changes.length - 1; i$1 >= 0; --i$1) {
5292
- var returned = loop( i$1 );
5293
-
5294
- if ( returned ) return returned.v;
5295
- }
5296
- }
5297
-
5298
- // Sub-views need their line numbers shifted when text is added
5299
- // above or below them in the parent document.
5300
- function shiftDoc(doc, distance) {
5301
- if (distance == 0) { return }
5302
- doc.first += distance
5303
- doc.sel = new Selection(map(doc.sel.ranges, function (range) { return new Range(
5304
- Pos(range.anchor.line + distance, range.anchor.ch),
5305
- Pos(range.head.line + distance, range.head.ch)
5306
- ); }), doc.sel.primIndex)
5307
- if (doc.cm) {
5308
- regChange(doc.cm, doc.first, doc.first - distance, distance)
5309
- for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)
5310
- { regLineChange(doc.cm, l, "gutter") }
5311
- }
5312
- }
5313
-
5314
- // More lower-level change function, handling only a single document
5315
- // (not linked ones).
5316
- function makeChangeSingleDoc(doc, change, selAfter, spans) {
5317
- if (doc.cm && !doc.cm.curOp)
5318
- { return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans) }
5319
-
5320
- if (change.to.line < doc.first) {
5321
- shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line))
5322
- return
5323
- }
5324
- if (change.from.line > doc.lastLine()) { return }
5325
-
5326
- // Clip the change to the size of this doc
5327
- if (change.from.line < doc.first) {
5328
- var shift = change.text.length - 1 - (doc.first - change.from.line)
5329
- shiftDoc(doc, shift)
5330
- change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),
5331
- text: [lst(change.text)], origin: change.origin}
5332
- }
5333
- var last = doc.lastLine()
5334
- if (change.to.line > last) {
5335
- change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),
5336
- text: [change.text[0]], origin: change.origin}
5337
- }
5338
-
5339
- change.removed = getBetween(doc, change.from, change.to)
5340
-
5341
- if (!selAfter) { selAfter = computeSelAfterChange(doc, change) }
5342
- if (doc.cm) { makeChangeSingleDocInEditor(doc.cm, change, spans) }
5343
- else { updateDoc(doc, change, spans) }
5344
- setSelectionNoUndo(doc, selAfter, sel_dontScroll)
5345
- }
5346
-
5347
- // Handle the interaction of a change to a document with the editor
5348
- // that this document is part of.
5349
- function makeChangeSingleDocInEditor(cm, change, spans) {
5350
- var doc = cm.doc, display = cm.display, from = change.from, to = change.to
5351
-
5352
- var recomputeMaxLength = false, checkWidthStart = from.line
5353
- if (!cm.options.lineWrapping) {
5354
- checkWidthStart = lineNo(visualLine(getLine(doc, from.line)))
5355
- doc.iter(checkWidthStart, to.line + 1, function (line) {
5356
- if (line == display.maxLine) {
5357
- recomputeMaxLength = true
5358
- return true
5359
  }
5360
- })
 
 
 
 
 
 
 
 
5361
  }
5362
 
5363
- if (doc.sel.contains(change.from, change.to) > -1)
5364
- { signalCursorActivity(cm) }
 
 
 
5365
 
5366
- updateDoc(doc, change, spans, estimateHeight(cm))
 
 
5367
 
5368
- if (!cm.options.lineWrapping) {
5369
- doc.iter(checkWidthStart, from.line + change.text.length, function (line) {
5370
- var len = lineLength(line)
5371
- if (len > display.maxLineLength) {
5372
- display.maxLine = line
5373
- display.maxLineLength = len
5374
- display.maxLineChanged = true
5375
- recomputeMaxLength = false
5376
- }
5377
- })
5378
- if (recomputeMaxLength) { cm.curOp.updateMaxLine = true }
5379
  }
5380
 
5381
- retreatFrontier(doc, from.line)
5382
- startWorker(cm, 400)
 
5383
 
5384
- var lendiff = change.text.length - (to.line - from.line) - 1
5385
- // Remember that these lines changed, for updating the display
5386
- if (change.full)
5387
- { regChange(cm) }
5388
- else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))
5389
- { regLineChange(cm, from.line, "text") }
5390
- else
5391
- { regChange(cm, from.line, to.line + 1, lendiff) }
5392
 
5393
- var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change")
5394
- if (changeHandler || changesHandler) {
5395
- var obj = {
5396
- from: from, to: to,
5397
- text: change.text,
5398
- removed: change.removed,
5399
- origin: change.origin
5400
- }
5401
- if (changeHandler) { signalLater(cm, "change", cm, obj) }
5402
- if (changesHandler) { (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj) }
5403
- }
5404
- cm.display.selForContextMenu = null
5405
- }
5406
-
5407
- function replaceRange(doc, code, from, to, origin) {
5408
- if (!to) { to = from }
5409
- if (cmp(to, from) < 0) { var assign;
5410
- (assign = [to, from], from = assign[0], to = assign[1], assign) }
5411
- if (typeof code == "string") { code = doc.splitLines(code) }
5412
- makeChange(doc, {from: from, to: to, text: code, origin: origin})
5413
- }
5414
-
5415
- // Rebasing/resetting history to deal with externally-sourced changes
5416
-
5417
- function rebaseHistSelSingle(pos, from, to, diff) {
5418
- if (to < pos.line) {
5419
- pos.line += diff
5420
- } else if (from < pos.line) {
5421
- pos.line = from
5422
- pos.ch = 0
5423
- }
5424
- }
5425
-
5426
- // Tries to rebase an array of history events given a change in the
5427
- // document. If the change touches the same lines as the event, the
5428
- // event, and everything 'behind' it, is discarded. If the change is
5429
- // before the event, the event's positions are updated. Uses a
5430
- // copy-on-write scheme for the positions, to avoid having to
5431
- // reallocate them all on every rebase, but also avoid problems with
5432
- // shared position objects being unsafely updated.
5433
- function rebaseHistArray(array, from, to, diff) {
5434
- for (var i = 0; i < array.length; ++i) {
5435
- var sub = array[i], ok = true
5436
- if (sub.ranges) {
5437
- if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true }
5438
- for (var j = 0; j < sub.ranges.length; j++) {
5439
- rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff)
5440
- rebaseHistSelSingle(sub.ranges[j].head, from, to, diff)
5441
- }
5442
- continue
5443
- }
5444
- for (var j$1 = 0; j$1 < sub.changes.length; ++j$1) {
5445
- var cur = sub.changes[j$1]
5446
- if (to < cur.from.line) {
5447
- cur.from = Pos(cur.from.line + diff, cur.from.ch)
5448
- cur.to = Pos(cur.to.line + diff, cur.to.ch)
5449
- } else if (from <= cur.to.line) {
5450
- ok = false
5451
- break
5452
- }
5453
- }
5454
- if (!ok) {
5455
- array.splice(0, i + 1)
5456
- i = 0
5457
- }
5458
- }
5459
- }
5460
-
5461
- function rebaseHist(hist, change) {
5462
- var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1
5463
- rebaseHistArray(hist.done, from, to, diff)
5464
- rebaseHistArray(hist.undone, from, to, diff)
5465
- }
5466
-
5467
- // Utility for applying a change to a line by handle or number,
5468
- // returning the number and optionally registering the line as
5469
- // changed.
5470
- function changeLine(doc, handle, changeType, op) {
5471
- var no = handle, line = handle
5472
- if (typeof handle == "number") { line = getLine(doc, clipLine(doc, handle)) }
5473
- else { no = lineNo(handle) }
5474
- if (no == null) { return null }
5475
- if (op(line, no) && doc.cm) { regLineChange(doc.cm, no, changeType) }
5476
- return line
5477
- }
5478
-
5479
- // The document is represented as a BTree consisting of leaves, with
5480
- // chunk of lines in them, and branches, with up to ten leaves or
5481
- // other branch nodes below them. The top node is always a branch
5482
- // node, and is the document object itself (meaning it has
5483
- // additional methods and properties).
5484
- //
5485
- // All nodes have parent links. The tree is used both to go from
5486
- // line numbers to line objects, and to go from objects to numbers.
5487
- // It also indexes by height, and is used to convert between height
5488
- // and line object, and to find the total height of the document.
5489
- //
5490
- // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html
5491
 
5492
- function LeafChunk(lines) {
5493
- var this$1 = this;
5494
 
5495
- this.lines = lines
5496
- this.parent = null
5497
- var height = 0
5498
- for (var i = 0; i < lines.length; ++i) {
5499
- lines[i].parent = this$1
5500
- height += lines[i].height
5501
  }
5502
- this.height = height
5503
- }
5504
 
5505
- LeafChunk.prototype = {
5506
- chunkSize: function chunkSize() { return this.lines.length },
 
5507
 
5508
- // Remove the n lines at offset 'at'.
5509
- removeInner: function removeInner(at, n) {
5510
- var this$1 = this;
5511
 
5512
- for (var i = at, e = at + n; i < e; ++i) {
5513
- var line = this$1.lines[i]
5514
- this$1.height -= line.height
5515
- cleanUpLine(line)
5516
- signalLater(line, "delete")
5517
- }
5518
- this.lines.splice(at, n)
5519
- },
5520
 
5521
- // Helper used to collapse a small branch into a single leaf.
5522
- collapse: function collapse(lines) {
5523
- lines.push.apply(lines, this.lines)
5524
- },
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
5525
 
5526
- // Insert the given array of lines at offset 'at', count them as
5527
- // having the given height.
5528
- insertInner: function insertInner(at, lines, height) {
5529
- var this$1 = this;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
5530
 
5531
- this.height += height
5532
- this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at))
5533
- for (var i = 0; i < lines.length; ++i) { lines[i].parent = this$1 }
5534
- },
 
 
 
 
 
5535
 
5536
- // Used to iterate over a part of the tree.
5537
- iterN: function iterN(at, n, op) {
5538
- var this$1 = this;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
5539
 
5540
- for (var e = at + n; at < e; ++at)
5541
- { if (op(this$1.lines[at])) { return true } }
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
5542
  }
5543
- }
5544
 
5545
- function BranchChunk(children) {
5546
- var this$1 = this;
5547
 
5548
- this.children = children
5549
- var size = 0, height = 0
5550
- for (var i = 0; i < children.length; ++i) {
5551
- var ch = children[i]
5552
- size += ch.chunkSize(); height += ch.height
5553
- ch.parent = this$1
 
 
 
 
 
5554
  }
5555
- this.size = size
5556
- this.height = height
5557
- this.parent = null
5558
- }
5559
 
5560
- BranchChunk.prototype = {
5561
- chunkSize: function chunkSize() { return this.size },
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
5562
 
5563
- removeInner: function removeInner(at, n) {
5564
- var this$1 = this;
 
 
 
 
 
 
 
 
5565
 
5566
- this.size -= n
5567
- for (var i = 0; i < this.children.length; ++i) {
5568
- var child = this$1.children[i], sz = child.chunkSize()
5569
- if (at < sz) {
5570
- var rm = Math.min(n, sz - at), oldHeight = child.height
5571
- child.removeInner(at, rm)
5572
- this$1.height -= oldHeight - child.height
5573
- if (sz == rm) { this$1.children.splice(i--, 1); child.parent = null }
5574
- if ((n -= rm) == 0) { break }
5575
- at = 0
5576
- } else { at -= sz }
5577
- }
5578
- // If the result is smaller than 25 lines, ensure that it is a
5579
- // single leaf node.
5580
- if (this.size - n < 25 &&
5581
- (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {
5582
- var lines = []
5583
- this.collapse(lines)
5584
- this.children = [new LeafChunk(lines)]
5585
- this.children[0].parent = this
5586
- }
5587
- },
5588
-
5589
- collapse: function collapse(lines) {
5590
- var this$1 = this;
5591
 
5592
- for (var i = 0; i < this.children.length; ++i) { this$1.children[i].collapse(lines) }
5593
- },
 
 
 
 
 
 
 
 
 
 
 
 
 
5594
 
5595
- insertInner: function insertInner(at, lines, height) {
5596
- var this$1 = this;
 
 
 
 
 
 
5597
 
5598
- this.size += lines.length
5599
- this.height += height
5600
- for (var i = 0; i < this.children.length; ++i) {
5601
- var child = this$1.children[i], sz = child.chunkSize()
5602
- if (at <= sz) {
5603
- child.insertInner(at, lines, height)
5604
- if (child.lines && child.lines.length > 50) {
5605
- // To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced.
5606
- // Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest.
5607
- var remaining = child.lines.length % 25 + 25
5608
- for (var pos = remaining; pos < child.lines.length;) {
5609
- var leaf = new LeafChunk(child.lines.slice(pos, pos += 25))
5610
- child.height -= leaf.height
5611
- this$1.children.splice(++i, 0, leaf)
5612
- leaf.parent = this$1
5613
- }
5614
- child.lines = child.lines.slice(0, remaining)
5615
- this$1.maybeSpill()
5616
  }
5617
- break
5618
  }
5619
- at -= sz
5620
- }
5621
- },
5622
 
5623
- // When a node has grown, check whether it should be split.
5624
- maybeSpill: function maybeSpill() {
5625
- if (this.children.length <= 10) { return }
5626
- var me = this
5627
- do {
5628
- var spilled = me.children.splice(me.children.length - 5, 5)
5629
- var sibling = new BranchChunk(spilled)
5630
- if (!me.parent) { // Become the parent node
5631
- var copy = new BranchChunk(me.children)
5632
- copy.parent = me
5633
- me.children = [copy, sibling]
5634
- me = copy
5635
- } else {
5636
- me.size -= sibling.size
5637
- me.height -= sibling.height
5638
- var myIndex = indexOf(me.parent.children, me)
5639
- me.parent.children.splice(myIndex + 1, 0, sibling)
5640
- }
5641
- sibling.parent = me.parent
5642
- } while (me.children.length > 10)
5643
- me.parent.maybeSpill()
5644
- },
5645
-
5646
- iterN: function iterN(at, n, op) {
5647
- var this$1 = this;
 
 
 
 
 
 
 
 
 
 
 
5648
 
5649
- for (var i = 0; i < this.children.length; ++i) {
5650
- var child = this$1.children[i], sz = child.chunkSize()
5651
- if (at < sz) {
5652
- var used = Math.min(n, sz - at)
5653
- if (child.iterN(at, used, op)) { return true }
5654
- if ((n -= used) == 0) { break }
5655
- at = 0
5656
- } else { at -= sz }
5657
  }
 
 
 
 
 
 
 
 
 
5658
  }
5659
- }
5660
 
5661
- // Line widgets are block elements displayed above or below a line.
5662
 
5663
- var LineWidget = function(doc, node, options) {
5664
- var this$1 = this;
5665
 
5666
- if (options) { for (var opt in options) { if (options.hasOwnProperty(opt))
5667
- { this$1[opt] = options[opt] } } }
5668
- this.doc = doc
5669
- this.node = node
5670
- };
5671
 
5672
- LineWidget.prototype.clear = function () {
5673
- var this$1 = this;
 
 
 
 
 
 
 
 
5674
 
5675
- var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line)
5676
- if (no == null || !ws) { return }
5677
- for (var i = 0; i < ws.length; ++i) { if (ws[i] == this$1) { ws.splice(i--, 1) } }
5678
- if (!ws.length) { line.widgets = null }
5679
- var height = widgetHeight(this)
5680
- updateLineHeight(line, Math.max(0, line.height - height))
5681
- if (cm) {
5682
- runInOp(cm, function () {
5683
- adjustScrollWhenAboveVisible(cm, line, -height)
5684
- regLineChange(cm, no, "widget")
5685
- })
5686
- signalLater(cm, "lineWidgetCleared", cm, this, no)
5687
  }
5688
- };
5689
 
5690
- LineWidget.prototype.changed = function () {
5691
- var this$1 = this;
5692
-
5693
- var oldH = this.height, cm = this.doc.cm, line = this.line
5694
- this.height = null
5695
- var diff = widgetHeight(this) - oldH
5696
- if (!diff) { return }
5697
- updateLineHeight(line, line.height + diff)
5698
- if (cm) {
5699
- runInOp(cm, function () {
5700
- cm.curOp.forceUpdate = true
5701
- adjustScrollWhenAboveVisible(cm, line, diff)
5702
- signalLater(cm, "lineWidgetChanged", cm, this$1, lineNo(line))
5703
- })
5704
- }
5705
- };
5706
- eventMixin(LineWidget)
5707
-
5708
- function adjustScrollWhenAboveVisible(cm, line, diff) {
5709
- if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))
5710
- { addToScrollTop(cm, diff) }
5711
- }
5712
-
5713
- function addLineWidget(doc, handle, node, options) {
5714
- var widget = new LineWidget(doc, node, options)
5715
- var cm = doc.cm
5716
- if (cm && widget.noHScroll) { cm.display.alignWidgets = true }
5717
- changeLine(doc, handle, "widget", function (line) {
5718
- var widgets = line.widgets || (line.widgets = [])
5719
- if (widget.insertAt == null) { widgets.push(widget) }
5720
- else { widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget) }
5721
- widget.line = line
5722
- if (cm && !lineIsHidden(doc, line)) {
5723
- var aboveVisible = heightAtLine(line) < doc.scrollTop
5724
- updateLineHeight(line, line.height + widgetHeight(widget))
5725
- if (aboveVisible) { addToScrollTop(cm, widget.height) }
5726
- cm.curOp.forceUpdate = true
5727
  }
5728
- return true
5729
- })
5730
- if (cm) { signalLater(cm, "lineWidgetAdded", cm, widget, typeof handle == "number" ? handle : lineNo(handle)) }
5731
- return widget
5732
- }
5733
-
5734
- // TEXTMARKERS
5735
-
5736
- // Created with markText and setBookmark methods. A TextMarker is a
5737
- // handle that can be used to clear or find a marked position in the
5738
- // document. Line objects hold arrays (markedSpans) containing
5739
- // {from, to, marker} object pointing to such marker objects, and
5740
- // indicating that such a marker is present on that line. Multiple
5741
- // lines may point to the same marker when it spans across lines.
5742
- // The spans will have null for their from/to properties when the
5743
- // marker continues beyond the start/end of the line. Markers have
5744
- // links back to the lines they currently touch.
5745
-
5746
- // Collapsed markers have unique ids, in order to be able to order
5747
- // them, which is needed for uniquely determining an outer marker
5748
- // when they overlap (they may nest, but not partially overlap).
5749
- var nextMarkerId = 0
5750
-
5751
- var TextMarker = function(doc, type) {
5752
- this.lines = []
5753
- this.type = type
5754
- this.doc = doc
5755
- this.id = ++nextMarkerId
5756
- };
5757
-
5758
- // Clear the marker.
5759
- TextMarker.prototype.clear = function () {
5760
- var this$1 = this;
5761
-
5762
- if (this.explicitlyCleared) { return }
5763
- var cm = this.doc.cm, withOp = cm && !cm.curOp
5764
- if (withOp) { startOperation(cm) }
5765
- if (hasHandler(this, "clear")) {
5766
- var found = this.find()
5767
- if (found) { signalLater(this, "clear", found.from, found.to) }
5768
- }
5769
- var min = null, max = null
5770
- for (var i = 0; i < this.lines.length; ++i) {
5771
- var line = this$1.lines[i]
5772
- var span = getMarkedSpanFor(line.markedSpans, this$1)
5773
- if (cm && !this$1.collapsed) { regLineChange(cm, lineNo(line), "text") }
5774
- else if (cm) {
5775
- if (span.to != null) { max = lineNo(line) }
5776
- if (span.from != null) { min = lineNo(line) }
5777
- }
5778
- line.markedSpans = removeMarkedSpan(line.markedSpans, span)
5779
- if (span.from == null && this$1.collapsed && !lineIsHidden(this$1.doc, line) && cm)
5780
- { updateLineHeight(line, textHeight(cm.display)) }
5781
- }
5782
- if (cm && this.collapsed && !cm.options.lineWrapping) { for (var i$1 = 0; i$1 < this.lines.length; ++i$1) {
5783
- var visual = visualLine(this$1.lines[i$1]), len = lineLength(visual)
5784
- if (len > cm.display.maxLineLength) {
5785
- cm.display.maxLine = visual
5786
- cm.display.maxLineLength = len
5787
- cm.display.maxLineChanged = true
5788
- }
5789
- } }
5790
-
5791
- if (min != null && cm && this.collapsed) { regChange(cm, min, max + 1) }
5792
- this.lines.length = 0
5793
- this.explicitlyCleared = true
5794
- if (this.atomic && this.doc.cantEdit) {
5795
- this.doc.cantEdit = false
5796
- if (cm) { reCheckSelection(cm.doc) }
5797
- }
5798
- if (cm) { signalLater(cm, "markerCleared", cm, this, min, max) }
5799
- if (withOp) { endOperation(cm) }
5800
- if (this.parent) { this.parent.clear() }
5801
- };
5802
-
5803
- // Find the position of the marker in the document. Returns a {from,
5804
- // to} object by default. Side can be passed to get a specific side
5805
- // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the
5806
- // Pos objects returned contain a line object, rather than a line
5807
- // number (used to prevent looking up the same line twice).
5808
- TextMarker.prototype.find = function (side, lineObj) {
5809
- var this$1 = this;
5810
 
5811
- if (side == null && this.type == "bookmark") { side = 1 }
5812
- var from, to
5813
- for (var i = 0; i < this.lines.length; ++i) {
5814
- var line = this$1.lines[i]
5815
- var span = getMarkedSpanFor(line.markedSpans, this$1)
5816
- if (span.from != null) {
5817
- from = Pos(lineObj ? line : lineNo(line), span.from)
5818
- if (side == -1) { return from }
5819
- }
5820
- if (span.to != null) {
5821
- to = Pos(lineObj ? line : lineNo(line), span.to)
5822
- if (side == 1) { return to }
5823
- }
5824
  }
5825
- return from && {from: from, to: to}
5826
- };
5827
 
5828
- // Signals that the marker's widget changed, and surrounding layout
5829
- // should be recomputed.
5830
- TextMarker.prototype.changed = function () {
5831
- var this$1 = this;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
5832
 
5833
- var pos = this.find(-1, true), widget = this, cm = this.doc.cm
5834
- if (!pos || !cm) { return }
5835
- runInOp(cm, function () {
5836
- var line = pos.line, lineN = lineNo(pos.line)
5837
- var view = findViewForLine(cm, lineN)
5838
- if (view) {
5839
- clearLineMeasurementCacheFor(view)
5840
- cm.curOp.selectionChanged = cm.curOp.forceUpdate = true
5841
- }
5842
- cm.curOp.updateMaxLine = true
5843
- if (!lineIsHidden(widget.doc, line) && widget.height != null) {
5844
- var oldHeight = widget.height
5845
- widget.height = null
5846
- var dHeight = widgetHeight(widget) - oldHeight
5847
- if (dHeight)
5848
- { updateLineHeight(line, line.height + dHeight) }
5849
- }
5850
- signalLater(cm, "markerChanged", cm, this$1)
5851
- })
5852
- };
5853
-
5854
- TextMarker.prototype.attachLine = function (line) {
5855
- if (!this.lines.length && this.doc.cm) {
5856
- var op = this.doc.cm.curOp
5857
- if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
5858
- { (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this) }
5859
- }
5860
- this.lines.push(line)
5861
- };
5862
-
5863
- TextMarker.prototype.detachLine = function (line) {
5864
- this.lines.splice(indexOf(this.lines, line), 1)
5865
- if (!this.lines.length && this.doc.cm) {
5866
- var op = this.doc.cm.curOp
5867
- ;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this)
5868
- }
5869
- };
5870
- eventMixin(TextMarker)
5871
-
5872
- // Create a marker, wire it up to the right lines, and
5873
- function markText(doc, from, to, options, type) {
5874
- // Shared markers (across linked documents) are handled separately
5875
- // (markTextShared will call out to this again, once per
5876
- // document).
5877
- if (options && options.shared) { return markTextShared(doc, from, to, options, type) }
5878
- // Ensure we are in an operation.
5879
- if (doc.cm && !doc.cm.curOp) { return operation(doc.cm, markText)(doc, from, to, options, type) }
5880
-
5881
- var marker = new TextMarker(doc, type), diff = cmp(from, to)
5882
- if (options) { copyObj(options, marker, false) }
5883
- // Don't connect empty markers unless clearWhenEmpty is false
5884
- if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)
5885
- { return marker }
5886
- if (marker.replacedWith) {
5887
- // Showing up as a widget implies collapsed (widget replaces text)
5888
- marker.collapsed = true
5889
- marker.widgetNode = eltP("span", [marker.replacedWith], "CodeMirror-widget")
5890
- if (!options.handleMouseEvents) { marker.widgetNode.setAttribute("cm-ignore-events", "true") }
5891
- if (options.insertLeft) { marker.widgetNode.insertLeft = true }
5892
- }
5893
- if (marker.collapsed) {
5894
- if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||
5895
- from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))
5896
- { throw new Error("Inserting collapsed marker partially overlapping an existing one") }
5897
- seeCollapsedSpans()
5898
- }
5899
-
5900
- if (marker.addToHistory)
5901
- { addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN) }
5902
-
5903
- var curLine = from.line, cm = doc.cm, updateMaxLine
5904
- doc.iter(curLine, to.line + 1, function (line) {
5905
- if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)
5906
- { updateMaxLine = true }
5907
- if (marker.collapsed && curLine != from.line) { updateLineHeight(line, 0) }
5908
- addMarkedSpan(line, new MarkedSpan(marker,
5909
- curLine == from.line ? from.ch : null,
5910
- curLine == to.line ? to.ch : null))
5911
- ++curLine
5912
- })
5913
- // lineIsHidden depends on the presence of the spans, so needs a second pass
5914
- if (marker.collapsed) { doc.iter(from.line, to.line + 1, function (line) {
5915
- if (lineIsHidden(doc, line)) { updateLineHeight(line, 0) }
5916
- }) }
5917
-
5918
- if (marker.clearOnEnter) { on(marker, "beforeCursorEnter", function () { return marker.clear(); }) }
5919
-
5920
- if (marker.readOnly) {
5921
- seeReadOnlySpans()
5922
- if (doc.history.done.length || doc.history.undone.length)
5923
- { doc.clearHistory() }
5924
- }
5925
- if (marker.collapsed) {
5926
- marker.id = ++nextMarkerId
5927
- marker.atomic = true
5928
- }
5929
- if (cm) {
5930
- // Sync editor state
5931
- if (updateMaxLine) { cm.curOp.updateMaxLine = true }
5932
- if (marker.collapsed)
5933
- { regChange(cm, from.line, to.line + 1) }
5934
- else if (marker.className || marker.title || marker.startStyle || marker.endStyle || marker.css)
5935
- { for (var i = from.line; i <= to.line; i++) { regLineChange(cm, i, "text") } }
5936
- if (marker.atomic) { reCheckSelection(cm.doc) }
5937
- signalLater(cm, "markerAdded", cm, marker)
5938
- }
5939
- return marker
5940
- }
5941
-
5942
- // SHARED TEXTMARKERS
5943
-
5944
- // A shared marker spans multiple linked documents. It is
5945
- // implemented as a meta-marker-object controlling multiple normal
5946
- // markers.
5947
- var SharedTextMarker = function(markers, primary) {
5948
- var this$1 = this;
5949
-
5950
- this.markers = markers
5951
- this.primary = primary
5952
- for (var i = 0; i < markers.length; ++i)
5953
- { markers[i].parent = this$1 }
5954
- };
5955
-
5956
- SharedTextMarker.prototype.clear = function () {
5957
- var this$1 = this;
5958
 
5959
- if (this.explicitlyCleared) { return }
5960
- this.explicitlyCleared = true
5961
- for (var i = 0; i < this.markers.length; ++i)
5962
- { this$1.markers[i].clear() }
5963
- signalLater(this, "clear")
5964
- };
5965
-
5966
- SharedTextMarker.prototype.find = function (side, lineObj) {
5967
- return this.primary.find(side, lineObj)
5968
- };
5969
- eventMixin(SharedTextMarker)
5970
-
5971
- function markTextShared(doc, from, to, options, type) {
5972
- options = copyObj(options)
5973
- options.shared = false
5974
- var markers = [markText(doc, from, to, options, type)], primary = markers[0]
5975
- var widget = options.widgetNode
5976
- linkedDocs(doc, function (doc) {
5977
- if (widget) { options.widgetNode = widget.cloneNode(true) }
5978
- markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type))
5979
- for (var i = 0; i < doc.linked.length; ++i)
5980
- { if (doc.linked[i].isParent) { return } }
5981
- primary = lst(markers)
5982
- })
5983
- return new SharedTextMarker(markers, primary)
5984
- }
5985
-
5986
- function findSharedMarkers(doc) {
5987
- return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), function (m) { return m.parent; })
5988
- }
5989
-
5990
- function copySharedMarkers(doc, markers) {
5991
- for (var i = 0; i < markers.length; i++) {
5992
- var marker = markers[i], pos = marker.find()
5993
- var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to)
5994
- if (cmp(mFrom, mTo)) {
5995
- var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type)
5996
- marker.markers.push(subMark)
5997
- subMark.parent = marker
5998
- }
5999
- }
6000
- }
6001
-
6002
- function detachSharedMarkers(markers) {
6003
- var loop = function ( i ) {
6004
- var marker = markers[i], linked = [marker.primary.doc]
6005
- linkedDocs(marker.primary.doc, function (d) { return linked.push(d); })
6006
- for (var j = 0; j < marker.markers.length; j++) {
6007
- var subMarker = marker.markers[j]
6008
- if (indexOf(linked, subMarker.doc) == -1) {
6009
- subMarker.parent = null
6010
- marker.markers.splice(j--, 1)
 
 
 
 
 
 
 
 
 
 
 
 
6011
  }
6012
  }
6013
- };
 
 
 
6014
 
6015
- for (var i = 0; i < markers.length; i++) loop( i );
6016
- }
6017
-
6018
- var nextDocId = 0
6019
- var Doc = function(text, mode, firstLine, lineSep, direction) {
6020
- if (!(this instanceof Doc)) { return new Doc(text, mode, firstLine, lineSep, direction) }
6021
- if (firstLine == null) { firstLine = 0 }
6022
-
6023
- BranchChunk.call(this, [new LeafChunk([new Line("", null)])])
6024
- this.first = firstLine
6025
- this.scrollTop = this.scrollLeft = 0
6026
- this.cantEdit = false
6027
- this.cleanGeneration = 1
6028
- this.modeFrontier = this.highlightFrontier = firstLine
6029
- var start = Pos(firstLine, 0)
6030
- this.sel = simpleSelection(start)
6031
- this.history = new History(null)
6032
- this.id = ++nextDocId
6033
- this.modeOption = mode
6034
- this.lineSep = lineSep
6035
- this.direction = (direction == "rtl") ? "rtl" : "ltr"
6036
- this.extend = false
6037
-
6038
- if (typeof text == "string") { text = this.splitLines(text) }
6039
- updateDoc(this, {from: start, to: start, text: text})
6040
- setSelection(this, simpleSelection(start), sel_dontScroll)
6041
- }
6042
-
6043
- Doc.prototype = createObj(BranchChunk.prototype, {
6044
- constructor: Doc,
6045
- // Iterate over the document. Supports two forms -- with only one
6046
- // argument, it calls that for each line in the document. With
6047
- // three, it iterates over the range given by the first two (with
6048
- // the second being non-inclusive).
6049
- iter: function(from, to, op) {
6050
- if (op) { this.iterN(from - this.first, to - from, op) }
6051
- else { this.iterN(this.first, this.first + this.size, from) }
6052
- },
6053
-
6054
- // Non-public interface for adding and removing lines.
6055
- insert: function(at, lines) {
6056
- var height = 0
6057
- for (var i = 0; i < lines.length; ++i) { height += lines[i].height }
6058
- this.insertInner(at - this.first, lines, height)
6059
- },
6060
- remove: function(at, n) { this.removeInner(at - this.first, n) },
6061
-
6062
- // From here, the methods are part of the public interface. Most
6063
- // are also available from CodeMirror (editor) instances.
6064
-
6065
- getValue: function(lineSep) {
6066
- var lines = getLines(this, this.first, this.first + this.size)
6067
- if (lineSep === false) { return lines }
6068
- return lines.join(lineSep || this.lineSeparator())
6069
- },
6070
- setValue: docMethodOp(function(code) {
6071
- var top = Pos(this.first, 0), last = this.first + this.size - 1
6072
- makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),
6073
- text: this.splitLines(code), origin: "setValue", full: true}, true)
6074
- if (this.cm) { scrollToCoords(this.cm, 0, 0) }
6075
- setSelection(this, simpleSelection(top), sel_dontScroll)
6076
- }),
6077
- replaceRange: function(code, from, to, origin) {
6078
- from = clipPos(this, from)
6079
- to = to ? clipPos(this, to) : from
6080
- replaceRange(this, code, from, to, origin)
6081
- },
6082
- getRange: function(from, to, lineSep) {
6083
- var lines = getBetween(this, clipPos(this, from), clipPos(this, to))
6084
- if (lineSep === false) { return lines }
6085
- return lines.join(lineSep || this.lineSeparator())
6086
- },
6087
-
6088
- getLine: function(line) {var l = this.getLineHandle(line); return l && l.text},
6089
-
6090
- getLineHandle: function(line) {if (isLine(this, line)) { return getLine(this, line) }},
6091
- getLineNumber: function(line) {return lineNo(line)},
6092
-
6093
- getLineHandleVisualStart: function(line) {
6094
- if (typeof line == "number") { line = getLine(this, line) }
6095
- return visualLine(line)
6096
- },
6097
-
6098
- lineCount: function() {return this.size},
6099
- firstLine: function() {return this.first},
6100
- lastLine: function() {return this.first + this.size - 1},
6101
-
6102
- clipPos: function(pos) {return clipPos(this, pos)},
6103
-
6104
- getCursor: function(start) {
6105
- var range = this.sel.primary(), pos
6106
- if (start == null || start == "head") { pos = range.head }
6107
- else if (start == "anchor") { pos = range.anchor }
6108
- else if (start == "end" || start == "to" || start === false) { pos = range.to() }
6109
- else { pos = range.from() }
6110
- return pos
6111
- },
6112
- listSelections: function() { return this.sel.ranges },
6113
- somethingSelected: function() {return this.sel.somethingSelected()},
6114
-
6115
- setCursor: docMethodOp(function(line, ch, options) {
6116
- setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options)
6117
- }),
6118
- setSelection: docMethodOp(function(anchor, head, options) {
6119
- setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options)
6120
- }),
6121
- extendSelection: docMethodOp(function(head, other, options) {
6122
- extendSelection(this, clipPos(this, head), other && clipPos(this, other), options)
6123
- }),
6124
- extendSelections: docMethodOp(function(heads, options) {
6125
- extendSelections(this, clipPosArray(this, heads), options)
6126
- }),
6127
- extendSelectionsBy: docMethodOp(function(f, options) {
6128
- var heads = map(this.sel.ranges, f)
6129
- extendSelections(this, clipPosArray(this, heads), options)
6130
- }),
6131
- setSelections: docMethodOp(function(ranges, primary, options) {
6132
- var this$1 = this;
6133
 
6134
- if (!ranges.length) { return }
6135
- var out = []
6136
- for (var i = 0; i < ranges.length; i++)
6137
- { out[i] = new Range(clipPos(this$1, ranges[i].anchor),
6138
- clipPos(this$1, ranges[i].head)) }
6139
- if (primary == null) { primary = Math.min(ranges.length - 1, this.sel.primIndex) }
6140
- setSelection(this, normalizeSelection(out, primary), options)
6141
- }),
6142
- addSelection: docMethodOp(function(anchor, head, options) {
6143
- var ranges = this.sel.ranges.slice(0)
6144
- ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)))
6145
- setSelection(this, normalizeSelection(ranges, ranges.length - 1), options)
6146
- }),
6147
-
6148
- getSelection: function(lineSep) {
6149
- var this$1 = this;
6150
 
6151
- var ranges = this.sel.ranges, lines
6152
- for (var i = 0; i < ranges.length; i++) {
6153
- var sel = getBetween(this$1, ranges[i].from(), ranges[i].to())
6154
- lines = lines ? lines.concat(sel) : sel
 
 
 
 
6155
  }
6156
- if (lineSep === false) { return lines }
6157
- else { return lines.join(lineSep || this.lineSeparator()) }
6158
- },
6159
- getSelections: function(lineSep) {
6160
- var this$1 = this;
6161
 
6162
- var parts = [], ranges = this.sel.ranges
6163
- for (var i = 0; i < ranges.length; i++) {
6164
- var sel = getBetween(this$1, ranges[i].from(), ranges[i].to())
6165
- if (lineSep !== false) { sel = sel.join(lineSep || this$1.lineSeparator()) }
6166
- parts[i] = sel
 
 
 
 
6167
  }
6168
- return parts
6169
- },
6170
- replaceSelection: function(code, collapse, origin) {
6171
- var dup = []
6172
- for (var i = 0; i < this.sel.ranges.length; i++)
6173
- { dup[i] = code }
6174
- this.replaceSelections(dup, collapse, origin || "+input")
6175
- },
6176
- replaceSelections: docMethodOp(function(code, collapse, origin) {
6177
- var this$1 = this;
6178
 
6179
- var changes = [], sel = this.sel
6180
- for (var i = 0; i < sel.ranges.length; i++) {
6181
- var range = sel.ranges[i]
6182
- changes[i] = {from: range.from(), to: range.to(), text: this$1.splitLines(code[i]), origin: origin}
6183
- }
6184
- var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse)
6185
- for (var i$1 = changes.length - 1; i$1 >= 0; i$1--)
6186
- { makeChange(this$1, changes[i$1]) }
6187
- if (newSel) { setSelectionReplaceHistory(this, newSel) }
6188
- else if (this.cm) { ensureCursorVisible(this.cm) }
6189
- }),
6190
- undo: docMethodOp(function() {makeChangeFromHistory(this, "undo")}),
6191
- redo: docMethodOp(function() {makeChangeFromHistory(this, "redo")}),
6192
- undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true)}),
6193
- redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true)}),
6194
-
6195
- setExtending: function(val) {this.extend = val},
6196
- getExtending: function() {return this.extend},
6197
-
6198
- historySize: function() {
6199
- var hist = this.history, done = 0, undone = 0
6200
- for (var i = 0; i < hist.done.length; i++) { if (!hist.done[i].ranges) { ++done } }
6201
- for (var i$1 = 0; i$1 < hist.undone.length; i$1++) { if (!hist.undone[i$1].ranges) { ++undone } }
6202
- return {undo: done, redo: undone}
6203
- },
6204
- clearHistory: function() {this.history = new History(this.history.maxGeneration)},
6205
-
6206
- markClean: function() {
6207
- this.cleanGeneration = this.changeGeneration(true)
6208
- },
6209
- changeGeneration: function(forceSplit) {
6210
- if (forceSplit)
6211
- { this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null }
6212
- return this.history.generation
6213
- },
6214
- isClean: function (gen) {
6215
- return this.history.generation == (gen || this.cleanGeneration)
6216
- },
6217
-
6218
- getHistory: function() {
6219
- return {done: copyHistoryArray(this.history.done),
6220
- undone: copyHistoryArray(this.history.undone)}
6221
- },
6222
- setHistory: function(histData) {
6223
- var hist = this.history = new History(this.history.maxGeneration)
6224
- hist.done = copyHistoryArray(histData.done.slice(0), null, true)
6225
- hist.undone = copyHistoryArray(histData.undone.slice(0), null, true)
6226
- },
6227
-
6228
- setGutterMarker: docMethodOp(function(line, gutterID, value) {
6229
- return changeLine(this, line, "gutter", function (line) {
6230
- var markers = line.gutterMarkers || (line.gutterMarkers = {})
6231
- markers[gutterID] = value
6232
- if (!value && isEmpty(markers)) { line.gutterMarkers = null }
6233
- return true
6234
- })
6235
- }),
6236
 
6237
- clearGutter: docMethodOp(function(gutterID) {
6238
- var this$1 = this;
6239
 
6240
- this.iter(function (line) {
6241
- if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
6242
- changeLine(this$1, line, "gutter", function () {
6243
- line.gutterMarkers[gutterID] = null
6244
- if (isEmpty(line.gutterMarkers)) { line.gutterMarkers = null }
6245
- return true
6246
- })
6247
- }
6248
- })
6249
- }),
6250
-
6251
- lineInfo: function(line) {
6252
- var n
6253
- if (typeof line == "number") {
6254
- if (!isLine(this, line)) { return null }
6255
- n = line
6256
- line = getLine(this, line)
6257
- if (!line) { return null }
6258
- } else {
6259
- n = lineNo(line)
6260
- if (n == null) { return null }
6261
- }
6262
- return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,
6263
- textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,
6264
- widgets: line.widgets}
6265
- },
6266
-
6267
- addLineClass: docMethodOp(function(handle, where, cls) {
6268
- return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
6269
- var prop = where == "text" ? "textClass"
6270
- : where == "background" ? "bgClass"
6271
- : where == "gutter" ? "gutterClass" : "wrapClass"
6272
- if (!line[prop]) { line[prop] = cls }
6273
- else if (classTest(cls).test(line[prop])) { return false }
6274
- else { line[prop] += " " + cls }
6275
- return true
6276
- })
6277
- }),
6278
- removeLineClass: docMethodOp(function(handle, where, cls) {
6279
- return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
6280
- var prop = where == "text" ? "textClass"
6281
- : where == "background" ? "bgClass"
6282
- : where == "gutter" ? "gutterClass" : "wrapClass"
6283
- var cur = line[prop]
6284
- if (!cur) { return false }
6285
- else if (cls == null) { line[prop] = null }
6286
- else {
6287
- var found = cur.match(classTest(cls))
6288
- if (!found) { return false }
6289
- var end = found.index + found[0].length
6290
- line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null
6291
- }
6292
- return true
6293
- })
6294
- }),
6295
-
6296
- addLineWidget: docMethodOp(function(handle, node, options) {
6297
- return addLineWidget(this, handle, node, options)
6298
- }),
6299
- removeLineWidget: function(widget) { widget.clear() },
6300
-
6301
- markText: function(from, to, options) {
6302
- return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range")
6303
- },
6304
- setBookmark: function(pos, options) {
6305
- var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),
6306
- insertLeft: options && options.insertLeft,
6307
- clearWhenEmpty: false, shared: options && options.shared,
6308
- handleMouseEvents: options && options.handleMouseEvents}
6309
- pos = clipPos(this, pos)
6310
- return markText(this, pos, pos, realOpts, "bookmark")
6311
- },
6312
- findMarksAt: function(pos) {
6313
- pos = clipPos(this, pos)
6314
- var markers = [], spans = getLine(this, pos.line).markedSpans
6315
- if (spans) { for (var i = 0; i < spans.length; ++i) {
6316
- var span = spans[i]
6317
- if ((span.from == null || span.from <= pos.ch) &&
6318
- (span.to == null || span.to >= pos.ch))
6319
- { markers.push(span.marker.parent || span.marker) }
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
6320
  } }
6321
- return markers
6322
- },
6323
- findMarks: function(from, to, filter) {
6324
- from = clipPos(this, from); to = clipPos(this, to)
6325
- var found = [], lineNo = from.line
6326
- this.iter(from.line, to.line + 1, function (line) {
6327
- var spans = line.markedSpans
6328
- if (spans) { for (var i = 0; i < spans.length; i++) {
6329
- var span = spans[i]
6330
- if (!(span.to != null && lineNo == from.line && from.ch >= span.to ||
6331
- span.from == null && lineNo != from.line ||
6332
- span.from != null && lineNo == to.line && span.from >= to.ch) &&
6333
- (!filter || filter(span.marker)))
6334
- { found.push(span.marker.parent || span.marker) }
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
6335
  } }
6336
- ++lineNo
6337
- })
6338
- return found
6339
- },
6340
- getAllMarks: function() {
6341
- var markers = []
6342
- this.iter(function (line) {
6343
- var sps = line.markedSpans
6344
- if (sps) { for (var i = 0; i < sps.length; ++i)
6345
- { if (sps[i].from != null) { markers.push(sps[i].marker) } } }
6346
- })
6347
- return markers
6348
- },
6349
-
6350
- posFromIndex: function(off) {
6351
- var ch, lineNo = this.first, sepSize = this.lineSeparator().length
6352
- this.iter(function (line) {
6353
- var sz = line.text.length + sepSize
6354
- if (sz > off) { ch = off; return true }
6355
- off -= sz
6356
- ++lineNo
6357
- })
6358
- return clipPos(this, Pos(lineNo, ch))
6359
- },
6360
- indexFromPos: function (coords) {
6361
- coords = clipPos(this, coords)
6362
- var index = coords.ch
6363
- if (coords.line < this.first || coords.ch < 0) { return 0 }
6364
- var sepSize = this.lineSeparator().length
6365
- this.iter(this.first, coords.line, function (line) { // iter aborts when callback returns a truthy value
6366
- index += line.text.length + sepSize
6367
- })
6368
- return index
6369
- },
6370
-
6371
- copy: function(copyHistory) {
6372
- var doc = new Doc(getLines(this, this.first, this.first + this.size),
6373
- this.modeOption, this.first, this.lineSep, this.direction)
6374
- doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft
6375
- doc.sel = this.sel
6376
- doc.extend = false
6377
- if (copyHistory) {
6378
- doc.history.undoDepth = this.history.undoDepth
6379
- doc.setHistory(this.getHistory())
6380
- }
6381
- return doc
6382
- },
6383
-
6384
- linkedDoc: function(options) {
6385
- if (!options) { options = {} }
6386
- var from = this.first, to = this.first + this.size
6387
- if (options.from != null && options.from > from) { from = options.from }
6388
- if (options.to != null && options.to < to) { to = options.to }
6389
- var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep, this.direction)
6390
- if (options.sharedHist) { copy.history = this.history
6391
- ; }(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist})
6392
- copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}]
6393
- copySharedMarkers(copy, findSharedMarkers(this))
6394
- return copy
6395
- },
6396
- unlinkDoc: function(other) {
6397
- var this$1 = this;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
6398
 
6399
- if (other instanceof CodeMirror) { other = other.doc }
6400
- if (this.linked) { for (var i = 0; i < this.linked.length; ++i) {
6401
- var link = this$1.linked[i]
6402
- if (link.doc != other) { continue }
6403
- this$1.linked.splice(i, 1)
6404
- other.unlinkDoc(this$1)
6405
- detachSharedMarkers(findSharedMarkers(this$1))
6406
- break
6407
  } }
6408
- // If the histories were shared, split them again
6409
- if (other.history == this.history) {
6410
- var splitIds = [other.id]
6411
- linkedDocs(other, function (doc) { return splitIds.push(doc.id); }, true)
6412
- other.history = new History(null)
6413
- other.history.done = copyHistoryArray(this.history.done, splitIds)
6414
- other.history.undone = copyHistoryArray(this.history.undone, splitIds)
6415
- }
6416
- },
6417
- iterLinkedDocs: function(f) {linkedDocs(this, f)},
6418
-
6419
- getMode: function() {return this.mode},
6420
- getEditor: function() {return this.cm},
6421
-
6422
- splitLines: function(str) {
6423
- if (this.lineSep) { return str.split(this.lineSep) }
6424
- return splitLinesAuto(str)
6425
- },
6426
- lineSeparator: function() { return this.lineSep || "\n" },
6427
-
6428
- setDirection: docMethodOp(function (dir) {
6429
- if (dir != "rtl") { dir = "ltr" }
6430
- if (dir == this.direction) { return }
6431
- this.direction = dir
6432
- this.iter(function (line) { return line.order = null; })
6433
- if (this.cm) { directionChanged(this.cm) }
6434
- })
6435
- })
6436
-
6437
- // Public alias.
6438
- Doc.prototype.eachLine = Doc.prototype.iter
6439
-
6440
- // Kludge to work around strange IE behavior where it'll sometimes
6441
- // re-fire a series of drag-related events right after the drop (#1551)
6442
- var lastDrop = 0
6443
-
6444
- function onDrop(e) {
6445
- var cm = this
6446
- clearDragCursor(cm)
6447
- if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))
6448
- { return }
6449
- e_preventDefault(e)
6450
- if (ie) { lastDrop = +new Date }
6451
- var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files
6452
- if (!pos || cm.isReadOnly()) { return }
6453
- // Might be a file drop, in which case we simply extract the text
6454
- // and insert it.
6455
- if (files && files.length && window.FileReader && window.File) {
6456
- var n = files.length, text = Array(n), read = 0
6457
- var loadFile = function (file, i) {
6458
- if (cm.options.allowDropFileTypes &&
6459
- indexOf(cm.options.allowDropFileTypes, file.type) == -1)
6460
- { return }
6461
-
6462
- var reader = new FileReader
6463
- reader.onload = operation(cm, function () {
6464
- var content = reader.result
6465
- if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) { content = "" }
6466
- text[i] = content
6467
- if (++read == n) {
6468
- pos = clipPos(cm.doc, pos)
6469
- var change = {from: pos, to: pos,
6470
- text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())),
6471
- origin: "paste"}
6472
- makeChange(cm.doc, change)
6473
- setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change)))
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
6474
  }
6475
- })
6476
- reader.readAsText(file)
6477
- }
6478
- for (var i = 0; i < n; ++i) { loadFile(files[i], i) }
6479
- } else { // Normal drop
6480
- // Don't do a replace if the drop happened inside of the selected text.
6481
- if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {
6482
- cm.state.draggingText(e)
6483
- // Ensure the editor is re-focused
6484
- setTimeout(function () { return cm.display.input.focus(); }, 20)
6485
- return
6486
  }
6487
- try {
6488
- var text$1 = e.dataTransfer.getData("Text")
6489
- if (text$1) {
6490
- var selected
6491
- if (cm.state.draggingText && !cm.state.draggingText.copy)
6492
- { selected = cm.listSelections() }
6493
- setSelectionNoUndo(cm.doc, simpleSelection(pos, pos))
6494
- if (selected) { for (var i$1 = 0; i$1 < selected.length; ++i$1)
6495
- { replaceRange(cm.doc, "", selected[i$1].anchor, selected[i$1].head, "drag") } }
6496
- cm.replaceSelection(text$1, "around", "paste")
6497
- cm.display.input.focus()
6498
- }
6499
- }
6500
- catch(e){}
6501
- }
6502
- }
6503
-
6504
- function onDragStart(cm, e) {
6505
- if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return }
6506
- if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) { return }
6507
-
6508
- e.dataTransfer.setData("Text", cm.getSelection())
6509
- e.dataTransfer.effectAllowed = "copyMove"
6510
-
6511
- // Use dummy image instead of default browsers image.
6512
- // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.
6513
- if (e.dataTransfer.setDragImage && !safari) {
6514
- var img = elt("img", null, null, "position: fixed; left: 0; top: 0;")
6515
- img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=="
6516
- if (presto) {
6517
- img.width = img.height = 1
6518
- cm.display.wrapper.appendChild(img)
6519
- // Force a relayout, or Opera won't use our image for some obscure reason
6520
- img._top = img.offsetTop
6521
- }
6522
- e.dataTransfer.setDragImage(img, 0, 0)
6523
- if (presto) { img.parentNode.removeChild(img) }
6524
- }
6525
- }
6526
-
6527
- function onDragOver(cm, e) {
6528
- var pos = posFromMouse(cm, e)
6529
- if (!pos) { return }
6530
- var frag = document.createDocumentFragment()
6531
- drawSelectionCursor(cm, pos, frag)
6532
- if (!cm.display.dragCursor) {
6533
- cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors")
6534
- cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv)
6535
- }
6536
- removeChildrenAndAdd(cm.display.dragCursor, frag)
6537
- }
6538
-
6539
- function clearDragCursor(cm) {
6540
- if (cm.display.dragCursor) {
6541
- cm.display.lineSpace.removeChild(cm.display.dragCursor)
6542
- cm.display.dragCursor = null
6543
- }
6544
- }
6545
-
6546
- // These must be handled carefully, because naively registering a
6547
- // handler for each editor will cause the editors to never be
6548
- // garbage collected.
6549
-
6550
- function forEachCodeMirror(f) {
6551
- if (!document.getElementsByClassName) { return }
6552
- var byClass = document.getElementsByClassName("CodeMirror")
6553
- for (var i = 0; i < byClass.length; i++) {
6554
- var cm = byClass[i].CodeMirror
6555
- if (cm) { f(cm) }
6556
- }
6557
- }
6558
-
6559
- var globalsRegistered = false
6560
- function ensureGlobalHandlers() {
6561
- if (globalsRegistered) { return }
6562
- registerGlobalHandlers()
6563
- globalsRegistered = true
6564
- }
6565
- function registerGlobalHandlers() {
6566
- // When the window resizes, we need to refresh active editors.
6567
- var resizeTimer
6568
- on(window, "resize", function () {
6569
- if (resizeTimer == null) { resizeTimer = setTimeout(function () {
6570
- resizeTimer = null
6571
- forEachCodeMirror(onResize)
6572
- }, 100) }
6573
- })
6574
- // When the window loses focus, we want to show the editor as blurred
6575
- on(window, "blur", function () { return forEachCodeMirror(onBlur); })
6576
- }
6577
- // Called when the window resizes
6578
- function onResize(cm) {
6579
- var d = cm.display
6580
- if (d.lastWrapHeight == d.wrapper.clientHeight && d.lastWrapWidth == d.wrapper.clientWidth)
6581
- { return }
6582
- // Might be a text scaling operation, clear size caches.
6583
- d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null
6584
- d.scrollbarsClipped = false
6585
- cm.setSize()
6586
- }
6587
-
6588
- var keyNames = {
6589
- 3: "Pause", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
6590
- 19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
6591
- 36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
6592
- 46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod",
6593
- 106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 127: "Delete", 145: "ScrollLock",
6594
- 173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
6595
- 221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete",
6596
- 63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"
6597
- }
6598
-
6599
- // Number keys
6600
- for (var i = 0; i < 10; i++) { keyNames[i + 48] = keyNames[i + 96] = String(i) }
6601
- // Alphabetic keys
6602
- for (var i$1 = 65; i$1 <= 90; i$1++) { keyNames[i$1] = String.fromCharCode(i$1) }
6603
- // Function keys
6604
- for (var i$2 = 1; i$2 <= 12; i$2++) { keyNames[i$2 + 111] = keyNames[i$2 + 63235] = "F" + i$2 }
6605
-
6606
- var keyMap = {}
6607
-
6608
- keyMap.basic = {
6609
- "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
6610
- "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
6611
- "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore",
6612
- "Tab": "defaultTab", "Shift-Tab": "indentAuto",
6613
- "Enter": "newlineAndIndent", "Insert": "toggleOverwrite",
6614
- "Esc": "singleSelection"
6615
- }
6616
- // Note that the save and find-related commands aren't defined by
6617
- // default. User code or addons can define them. Unknown commands
6618
- // are simply ignored.
6619
- keyMap.pcDefault = {
6620
- "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
6621
- "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown",
6622
- "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
6623
- "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find",
6624
- "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
6625
- "Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
6626
- "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection",
6627
- fallthrough: "basic"
6628
- }
6629
- // Very basic readline/emacs-style bindings, which are standard on Mac.
6630
- keyMap.emacsy = {
6631
- "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
6632
- "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
6633
- "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore",
6634
- "Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars",
6635
- "Ctrl-O": "openLine"
6636
- }
6637
- keyMap.macDefault = {
6638
- "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
6639
- "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft",
6640
- "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore",
6641
- "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find",
6642
- "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
6643
- "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight",
6644
- "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd",
6645
- fallthrough: ["basic", "emacsy"]
6646
- }
6647
- keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault
6648
-
6649
- // KEYMAP DISPATCH
6650
-
6651
- function normalizeKeyName(name) {
6652
- var parts = name.split(/-(?!$)/)
6653
- name = parts[parts.length - 1]
6654
- var alt, ctrl, shift, cmd
6655
- for (var i = 0; i < parts.length - 1; i++) {
6656
- var mod = parts[i]
6657
- if (/^(cmd|meta|m)$/i.test(mod)) { cmd = true }
6658
- else if (/^a(lt)?$/i.test(mod)) { alt = true }
6659
- else if (/^(c|ctrl|control)$/i.test(mod)) { ctrl = true }
6660
- else if (/^s(hift)?$/i.test(mod)) { shift = true }
6661
- else { throw new Error("Unrecognized modifier name: " + mod) }
6662
- }
6663
- if (alt) { name = "Alt-" + name }
6664
- if (ctrl) { name = "Ctrl-" + name }
6665
- if (cmd) { name = "Cmd-" + name }
6666
- if (shift) { name = "Shift-" + name }
6667
- return name
6668
- }
6669
-
6670
- // This is a kludge to keep keymaps mostly working as raw objects
6671
- // (backwards compatibility) while at the same time support features
6672
- // like normalization and multi-stroke key bindings. It compiles a
6673
- // new normalized keymap, and then updates the old object to reflect
6674
- // this.
6675
- function normalizeKeyMap(keymap) {
6676
- var copy = {}
6677
- for (var keyname in keymap) { if (keymap.hasOwnProperty(keyname)) {
6678
- var value = keymap[keyname]
6679
- if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) { continue }
6680
- if (value == "...") { delete keymap[keyname]; continue }
6681
-
6682
- var keys = map(keyname.split(" "), normalizeKeyName)
6683
- for (var i = 0; i < keys.length; i++) {
6684
- var val = (void 0), name = (void 0)
6685
- if (i == keys.length - 1) {
6686
- name = keys.join(" ")
6687
- val = value
6688
- } else {
6689
- name = keys.slice(0, i + 1).join(" ")
6690
- val = "..."
6691
- }
6692
- var prev = copy[name]
6693
- if (!prev) { copy[name] = val }
6694
- else if (prev != val) { throw new Error("Inconsistent bindings for " + name) }
6695
- }
6696
- delete keymap[keyname]
6697
- } }
6698
- for (var prop in copy) { keymap[prop] = copy[prop] }
6699
- return keymap
6700
- }
6701
-
6702
- function lookupKey(key, map, handle, context) {
6703
- map = getKeyMap(map)
6704
- var found = map.call ? map.call(key, context) : map[key]
6705
- if (found === false) { return "nothing" }
6706
- if (found === "...") { return "multi" }
6707
- if (found != null && handle(found)) { return "handled" }
6708
-
6709
- if (map.fallthrough) {
6710
- if (Object.prototype.toString.call(map.fallthrough) != "[object Array]")
6711
- { return lookupKey(key, map.fallthrough, handle, context) }
6712
- for (var i = 0; i < map.fallthrough.length; i++) {
6713
- var result = lookupKey(key, map.fallthrough[i], handle, context)
6714
- if (result) { return result }
6715
  }
6716
  }
6717
- }
6718
-
6719
- // Modifier key presses don't count as 'real' key presses for the
6720
- // purpose of keymap fallthrough.
6721
- function isModifierKey(value) {
6722
- var name = typeof value == "string" ? value : keyNames[value.keyCode]
6723
- return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod"
6724
- }
6725
-
6726
- function addModifierNames(name, event, noShift) {
6727
- var base = name
6728
- if (event.altKey && base != "Alt") { name = "Alt-" + name }
6729
- if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") { name = "Ctrl-" + name }
6730
- if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Cmd") { name = "Cmd-" + name }
6731
- if (!noShift && event.shiftKey && base != "Shift") { name = "Shift-" + name }
6732
- return name
6733
- }
6734
-
6735
- // Look up the name of a key as indicated by an event object.
6736
- function keyName(event, noShift) {
6737
- if (presto && event.keyCode == 34 && event["char"]) { return false }
6738
- var name = keyNames[event.keyCode]
6739
- if (name == null || event.altGraphKey) { return false }
6740
- // Ctrl-ScrollLock has keyCode 3, same as Ctrl-Pause,
6741
- // so we'll use event.code when available (Chrome 48+, FF 38+, Safari 10.1+)
6742
- if (event.keyCode == 3 && event.code) { name = event.code }
6743
- return addModifierNames(name, event, noShift)
6744
- }
6745
-
6746
- function getKeyMap(val) {
6747
- return typeof val == "string" ? keyMap[val] : val
6748
- }
6749
-
6750
- // Helper for deleting text near the selection(s), used to implement
6751
- // backspace, delete, and similar functionality.
6752
- function deleteNearSelection(cm, compute) {
6753
- var ranges = cm.doc.sel.ranges, kill = []
6754
- // Build up a set of ranges to kill first, merging overlapping
6755
- // ranges.
6756
- for (var i = 0; i < ranges.length; i++) {
6757
- var toKill = compute(ranges[i])
6758
- while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {
6759
- var replaced = kill.pop()
6760
- if (cmp(replaced.from, toKill.from) < 0) {
6761
- toKill.from = replaced.from
6762
- break
6763
  }
 
6764
  }
6765
- kill.push(toKill)
 
 
 
 
 
 
 
 
 
 
6766
  }
6767
- // Next, remove those actual ranges.
6768
- runInOp(cm, function () {
6769
- for (var i = kill.length - 1; i >= 0; i--)
6770
- { replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete") }
6771
- ensureCursorVisible(cm)
6772
- })
6773
- }
6774
 
6775
- function moveCharLogically(line, ch, dir) {
6776
- var target = skipExtendingChars(line.text, ch + dir, dir)
6777
- return target < 0 || target > line.text.length ? null : target
6778
- }
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
6779
 
6780
- function moveLogically(line, start, dir) {
6781
- var ch = moveCharLogically(line, start.ch, dir)
6782
- return ch == null ? null : new Pos(start.line, ch, dir < 0 ? "after" : "before")
6783
- }
6784
 
6785
- function endOfLine(visually, cm, lineObj, lineNo, dir) {
6786
- if (visually) {
6787
- var order = getOrder(lineObj, cm.doc.direction)
6788
- if (order) {
6789
- var part = dir < 0 ? lst(order) : order[0]
6790
- var moveInStorageOrder = (dir < 0) == (part.level == 1)
6791
- var sticky = moveInStorageOrder ? "after" : "before"
6792
- var ch
6793
- // With a wrapped rtl chunk (possibly spanning multiple bidi parts),
6794
- // it could be that the last bidi part is not on the last visual line,
6795
- // since visual lines contain content order-consecutive chunks.
6796
- // Thus, in rtl, we are looking for the first (content-order) character
6797
- // in the rtl chunk that is on the last line (that is, the same line
6798
- // as the last (content-order) character).
6799
- if (part.level > 0 || cm.doc.direction == "rtl") {
6800
- var prep = prepareMeasureForLine(cm, lineObj)
6801
- ch = dir < 0 ? lineObj.text.length - 1 : 0
6802
- var targetTop = measureCharPrepared(cm, prep, ch).top
6803
- ch = findFirst(function (ch) { return measureCharPrepared(cm, prep, ch).top == targetTop; }, (dir < 0) == (part.level == 1) ? part.from : part.to - 1, ch)
6804
- if (sticky == "before") { ch = moveCharLogically(lineObj, ch, 1) }
6805
- } else { ch = dir < 0 ? part.to : part.from }
6806
- return new Pos(lineNo, ch, sticky)
6807
- }
6808
- }
6809
- return new Pos(lineNo, dir < 0 ? lineObj.text.length : 0, dir < 0 ? "before" : "after")
6810
- }
6811
-
6812
- function moveVisually(cm, line, start, dir) {
6813
- var bidi = getOrder(line, cm.doc.direction)
6814
- if (!bidi) { return moveLogically(line, start, dir) }
6815
- if (start.ch >= line.text.length) {
6816
- start.ch = line.text.length
6817
- start.sticky = "before"
6818
- } else if (start.ch <= 0) {
6819
- start.ch = 0
6820
- start.sticky = "after"
6821
- }
6822
- var partPos = getBidiPartAt(bidi, start.ch, start.sticky), part = bidi[partPos]
6823
- if (cm.doc.direction == "ltr" && part.level % 2 == 0 && (dir > 0 ? part.to > start.ch : part.from < start.ch)) {
6824
- // Case 1: We move within an ltr part in an ltr editor. Even with wrapped lines,
6825
- // nothing interesting happens.
6826
- return moveLogically(line, start, dir)
6827
- }
6828
-
6829
- var mv = function (pos, dir) { return moveCharLogically(line, pos instanceof Pos ? pos.ch : pos, dir); }
6830
- var prep
6831
- var getWrappedLineExtent = function (ch) {
6832
- if (!cm.options.lineWrapping) { return {begin: 0, end: line.text.length} }
6833
- prep = prep || prepareMeasureForLine(cm, line)
6834
- return wrappedLineExtentChar(cm, line, prep, ch)
6835
- }
6836
- var wrappedLineExtent = getWrappedLineExtent(start.sticky == "before" ? mv(start, -1) : start.ch)
6837
-
6838
- if (cm.doc.direction == "rtl" || part.level == 1) {
6839
- var moveInStorageOrder = (part.level == 1) == (dir < 0)
6840
- var ch = mv(start, moveInStorageOrder ? 1 : -1)
6841
- if (ch != null && (!moveInStorageOrder ? ch >= part.from && ch >= wrappedLineExtent.begin : ch <= part.to && ch <= wrappedLineExtent.end)) {
6842
- // Case 2: We move within an rtl part or in an rtl editor on the same visual line
6843
- var sticky = moveInStorageOrder ? "before" : "after"
6844
- return new Pos(start.line, ch, sticky)
6845
- }
6846
- }
6847
-
6848
- // Case 3: Could not move within this bidi part in this visual line, so leave
6849
- // the current bidi part
6850
-
6851
- var searchInVisualLine = function (partPos, dir, wrappedLineExtent) {
6852
- var getRes = function (ch, moveInStorageOrder) { return moveInStorageOrder
6853
- ? new Pos(start.line, mv(ch, 1), "before")
6854
- : new Pos(start.line, ch, "after"); }
6855
-
6856
- for (; partPos >= 0 && partPos < bidi.length; partPos += dir) {
6857
- var part = bidi[partPos]
6858
- var moveInStorageOrder = (dir > 0) == (part.level != 1)
6859
- var ch = moveInStorageOrder ? wrappedLineExtent.begin : mv(wrappedLineExtent.end, -1)
6860
- if (part.from <= ch && ch < part.to) { return getRes(ch, moveInStorageOrder) }
6861
- ch = moveInStorageOrder ? part.from : mv(part.to, -1)
6862
- if (wrappedLineExtent.begin <= ch && ch < wrappedLineExtent.end) { return getRes(ch, moveInStorageOrder) }
6863
- }
6864
- }
6865
-
6866
- // Case 3a: Look for other bidi parts on the same visual line
6867
- var res = searchInVisualLine(partPos + dir, dir, wrappedLineExtent)
6868
- if (res) { return res }
6869
-
6870
- // Case 3b: Look for other bidi parts on the next visual line
6871
- var nextCh = dir > 0 ? wrappedLineExtent.end : mv(wrappedLineExtent.begin, -1)
6872
- if (nextCh != null && !(dir > 0 && nextCh == line.text.length)) {
6873
- res = searchInVisualLine(dir > 0 ? 0 : bidi.length - 1, dir, getWrappedLineExtent(nextCh))
6874
  if (res) { return res }
 
 
 
 
 
 
 
 
 
 
6875
  }
6876
 
6877
- // Case 4: Nowhere to move
6878
- return null
6879
- }
6880
-
6881
- // Commands are parameter-less actions that can be performed on an
6882
- // editor, mostly used for keybindings.
6883
- var commands = {
6884
- selectAll: selectAll,
6885
- singleSelection: function (cm) { return cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll); },
6886
- killLine: function (cm) { return deleteNearSelection(cm, function (range) {
6887
- if (range.empty()) {
6888
- var len = getLine(cm.doc, range.head.line).text.length
6889
- if (range.head.ch == len && range.head.line < cm.lastLine())
6890
- { return {from: range.head, to: Pos(range.head.line + 1, 0)} }
6891
- else
6892
- { return {from: range.head, to: Pos(range.head.line, len)} }
6893
- } else {
6894
- return {from: range.from(), to: range.to()}
6895
- }
6896
- }); },
6897
- deleteLine: function (cm) { return deleteNearSelection(cm, function (range) { return ({
6898
- from: Pos(range.from().line, 0),
6899
- to: clipPos(cm.doc, Pos(range.to().line + 1, 0))
6900
- }); }); },
6901
- delLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { return ({
6902
- from: Pos(range.from().line, 0), to: range.from()
6903
- }); }); },
6904
- delWrappedLineLeft: function (cm) { return deleteNearSelection(cm, function (range) {
6905
- var top = cm.charCoords(range.head, "div").top + 5
6906
- var leftPos = cm.coordsChar({left: 0, top: top}, "div")
6907
- return {from: leftPos, to: range.from()}
6908
- }); },
6909
- delWrappedLineRight: function (cm) { return deleteNearSelection(cm, function (range) {
6910
- var top = cm.charCoords(range.head, "div").top + 5
6911
- var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div")
6912
- return {from: range.from(), to: rightPos }
6913
- }); },
6914
- undo: function (cm) { return cm.undo(); },
6915
- redo: function (cm) { return cm.redo(); },
6916
- undoSelection: function (cm) { return cm.undoSelection(); },
6917
- redoSelection: function (cm) { return cm.redoSelection(); },
6918
- goDocStart: function (cm) { return cm.extendSelection(Pos(cm.firstLine(), 0)); },
6919
- goDocEnd: function (cm) { return cm.extendSelection(Pos(cm.lastLine())); },
6920
- goLineStart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStart(cm, range.head.line); },
6921
- {origin: "+move", bias: 1}
6922
- ); },
6923
- goLineStartSmart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStartSmart(cm, range.head); },
6924
- {origin: "+move", bias: 1}
6925
- ); },
6926
- goLineEnd: function (cm) { return cm.extendSelectionsBy(function (range) { return lineEnd(cm, range.head.line); },
6927
- {origin: "+move", bias: -1}
6928
- ); },
6929
- goLineRight: function (cm) { return cm.extendSelectionsBy(function (range) {
6930
- var top = cm.cursorCoords(range.head, "div").top + 5
6931
- return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div")
6932
- }, sel_move); },
6933
- goLineLeft: function (cm) { return cm.extendSelectionsBy(function (range) {
6934
- var top = cm.cursorCoords(range.head, "div").top + 5
6935
- return cm.coordsChar({left: 0, top: top}, "div")
6936
- }, sel_move); },
6937
- goLineLeftSmart: function (cm) { return cm.extendSelectionsBy(function (range) {
6938
- var top = cm.cursorCoords(range.head, "div").top + 5
6939
- var pos = cm.coordsChar({left: 0, top: top}, "div")
6940
- if (pos.ch < cm.getLine(pos.line).search(/\S/)) { return lineStartSmart(cm, range.head) }
6941
- return pos
6942
- }, sel_move); },
6943
- goLineUp: function (cm) { return cm.moveV(-1, "line"); },
6944
- goLineDown: function (cm) { return cm.moveV(1, "line"); },
6945
- goPageUp: function (cm) { return cm.moveV(-1, "page"); },
6946
- goPageDown: function (cm) { return cm.moveV(1, "page"); },
6947
- goCharLeft: function (cm) { return cm.moveH(-1, "char"); },
6948
- goCharRight: function (cm) { return cm.moveH(1, "char"); },
6949
- goColumnLeft: function (cm) { return cm.moveH(-1, "column"); },
6950
- goColumnRight: function (cm) { return cm.moveH(1, "column"); },
6951
- goWordLeft: function (cm) { return cm.moveH(-1, "word"); },
6952
- goGroupRight: function (cm) { return cm.moveH(1, "group"); },
6953
- goGroupLeft: function (cm) { return cm.moveH(-1, "group"); },
6954
- goWordRight: function (cm) { return cm.moveH(1, "word"); },
6955
- delCharBefore: function (cm) { return cm.deleteH(-1, "char"); },
6956
- delCharAfter: function (cm) { return cm.deleteH(1, "char"); },
6957
- delWordBefore: function (cm) { return cm.deleteH(-1, "word"); },
6958
- delWordAfter: function (cm) { return cm.deleteH(1, "word"); },
6959
- delGroupBefore: function (cm) { return cm.deleteH(-1, "group"); },
6960
- delGroupAfter: function (cm) { return cm.deleteH(1, "group"); },
6961
- indentAuto: function (cm) { return cm.indentSelection("smart"); },
6962
- indentMore: function (cm) { return cm.indentSelection("add"); },
6963
- indentLess: function (cm) { return cm.indentSelection("subtract"); },
6964
- insertTab: function (cm) { return cm.replaceSelection("\t"); },
6965
- insertSoftTab: function (cm) {
6966
- var spaces = [], ranges = cm.listSelections(), tabSize = cm.opt
1
  // CodeMirror, copyright (c) by Marijn Haverbeke and others
2
+ // Distributed under an MIT license: https://codemirror.net/LICENSE
3
 
4
+ // This is CodeMirror (https://codemirror.net), a code editor
5
  // implemented in JavaScript on top of the browser's DOM.
6
  //
7
  // You can find some technical background for some of the code below
13
  (global.CodeMirror = factory());
14
  }(this, (function () { 'use strict';
15
 
16
+ // Kludges for bugs and behavior differences that can't be feature
17
+ // detected are enabled based on userAgent etc sniffing.
18
+ var userAgent = navigator.userAgent;
19
+ var platform = navigator.platform;
20
+
21
+ var gecko = /gecko\/\d/i.test(userAgent);
22
+ var ie_upto10 = /MSIE \d/.test(userAgent);
23
+ var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent);
24
+ var edge = /Edge\/(\d+)/.exec(userAgent);
25
+ var ie = ie_upto10 || ie_11up || edge;
26
+ var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : +(edge || ie_11up)[1]);
27
+ var webkit = !edge && /WebKit\//.test(userAgent);
28
+ var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent);
29
+ var chrome = !edge && /Chrome\//.test(userAgent);
30
+ var presto = /Opera\//.test(userAgent);
31
+ var safari = /Apple Computer/.test(navigator.vendor);
32
+ var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent);
33
+ var phantom = /PhantomJS/.test(userAgent);
34
+
35
+ var ios = !edge && /AppleWebKit/.test(userAgent) && /Mobile\/\w+/.test(userAgent);
36
+ var android = /Android/.test(userAgent);
37
+ // This is woefully incomplete. Suggestions for alternative methods welcome.
38
+ var mobile = ios || android || /webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent);
39
+ var mac = ios || /Mac/.test(platform);
40
+ var chromeOS = /\bCrOS\b/.test(userAgent);
41
+ var windows = /win/i.test(platform);
42
+
43
+ var presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/);
44
+ if (presto_version) { presto_version = Number(presto_version[1]); }
45
+ if (presto_version && presto_version >= 15) { presto = false; webkit = true; }
46
+ // Some browsers use the wrong event properties to signal cmd/ctrl on OS X
47
+ var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11));
48
+ var captureRightClick = gecko || (ie && ie_version >= 9);
49
+
50
+ function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*") }
51
+
52
+ var rmClass = function(node, cls) {
53
+ var current = node.className;
54
+ var match = classTest(cls).exec(current);
55
+ if (match) {
56
+ var after = current.slice(match.index + match[0].length);
57
+ node.className = current.slice(0, match.index) + (after ? match[1] + after : "");
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
58
  }
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
59
  };
60
 
61
+ function removeChildren(e) {
62
+ for (var count = e.childNodes.length; count > 0; --count)
63
+ { e.removeChild(e.firstChild); }
64
+ return e
65
+ }
66
+
67
+ function removeChildrenAndAdd(parent, e) {
68
+ return removeChildren(parent).appendChild(e)
69
+ }
70
+
71
+ function elt(tag, content, className, style) {
72
+ var e = document.createElement(tag);
73
+ if (className) { e.className = className; }
74
+ if (style) { e.style.cssText = style; }
75
+ if (typeof content == "string") { e.appendChild(document.createTextNode(content)); }
76
+ else if (content) { for (var i = 0; i < content.length; ++i) { e.appendChild(content[i]); } }
77
+ return e
78
+ }
79
+ // wrapper for elt, which removes the elt from the accessibility tree
80
+ function eltP(tag, content, className, style) {
81
+ var e = elt(tag, content, className, style);
82
+ e.setAttribute("role", "presentation");
83
+ return e
84
+ }
85
+
86
+ var range;
87
+ if (document.createRange) { range = function(node, start, end, endNode) {
88
+ var r = document.createRange();
89
+ r.setEnd(endNode || node, end);
90
+ r.setStart(node, start);
91
+ return r
92
+ }; }
93
+ else { range = function(node, start, end) {
94
+ var r = document.body.createTextRange();
95
+ try { r.moveToElementText(node.parentNode); }
96
+ catch(e) { return r }
97
+ r.collapse(true);
98
+ r.moveEnd("character", end);
99
+ r.moveStart("character", start);
100
+ return r
101
+ }; }
102
+
103
+ function contains(parent, child) {
104
+ if (child.nodeType == 3) // Android browser always returns false when child is a textnode
105
+ { child = child.parentNode; }
106
+ if (parent.contains)
107
+ { return parent.contains(child) }
108
+ do {
109
+ if (child.nodeType == 11) { child = child.host; }
110
+ if (child == parent) { return true }
111
+ } while (child = child.parentNode)
112
+ }
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
113
 
114
+ function activeElt() {
115
+ // IE and Edge may throw an "Unspecified Error" when accessing document.activeElement.
116
+ // IE < 10 will throw when accessed while the page is loading or in an iframe.
117
+ // IE > 9 and Edge will throw when accessed in an iframe if document.body is unavailable.
118
+ var activeElement;
119
+ try {
120
+ activeElement = document.activeElement;
121
+ } catch(e) {
122
+ activeElement = document.body || null;
123
  }
124
+ while (activeElement && activeElement.shadowRoot && activeElement.shadowRoot.activeElement)
125
+ { activeElement = activeElement.shadowRoot.activeElement; }
126
+ return activeElement
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
127
  }
128
+
129
+ function addClass(node, cls) {
130
+ var current = node.className;
131
+ if (!classTest(cls).test(current)) { node.className += (current ? " " : "") + cls; }
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
132
  }
133
+ function joinClasses(a, b) {
134
+ var as = a.split(" ");
135
+ for (var i = 0; i < as.length; i++)
136
+ { if (as[i] && !classTest(as[i]).test(b)) { b += " " + as[i]; } }
137
+ return b
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
138
  }
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
139
 
140
+ var selectInput = function(node) { node.select(); };
141
+ if (ios) // Mobile Safari apparently has a bug where select() is broken.
142
+ { selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; }; }
143
+ else if (ie) // Suppress mysterious IE10 errors
144
+ { selectInput = function(node) { try { node.select(); } catch(_e) {} }; }
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
145
 
146
+ function bind(f) {
147
+ var args = Array.prototype.slice.call(arguments, 1);
148
+ return function(){return f.apply(null, args)}
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
149
  }
150
 
151
+ function copyObj(obj, target, overwrite) {
152
+ if (!target) { target = {}; }
153
+ for (var prop in obj)
154
+ { if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
155
+ { target[prop] = obj[prop]; } }
156
+ return target
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
157
  }
158
 
159
+ // Counts the column offset in a string, taking tabs into account.
160
+ // Used mostly to find indentation.
161
+ function countColumn(string, end, tabSize, startIndex, startValue) {
162
+ if (end == null) {
163
+ end = string.search(/[^\s\u00a0]/);
164
+ if (end == -1) { end = string.length; }
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
165
  }
166
+ for (var i = startIndex || 0, n = startValue || 0;;) {
167
+ var nextTab = string.indexOf("\t", i);
168
+ if (nextTab < 0 || nextTab >= end)
169
+ { return n + (end - i) }
170
+ n += nextTab - i;
171
+ n += tabSize - (n % tabSize);
172
+ i = nextTab + 1;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
173
  }
174
  }
175
 
176
+ var Delayed = function() {this.id = null;};
177
+ Delayed.prototype.set = function (ms, f) {
178
+ clearTimeout(this.id);
179
+ this.id = setTimeout(f, ms);
180
+ };
181
+
182
+ function indexOf(array, elt) {
183
+ for (var i = 0; i < array.length; ++i)
184
+ { if (array[i] == elt) { return i } }
185
+ return -1
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
186
  }
 
187
 
188
+ // Number of pixels added to scroller and sizer to hide scrollbar
189
+ var scrollerGap = 30;
 
 
 
 
 
 
 
190
 
191
+ // Returned or thrown by various protocols to signal 'I'm not
192
+ // handling this'.
193
+ var Pass = {toString: function(){return "CodeMirror.Pass"}};
194
 
195
+ // Reused option objects for setSelection & friends
196
+ var sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"};
197
 
198
+ // The inverse of countColumn -- find the offset that corresponds to
199
+ // a particular column.
200
+ function findColumn(string, goal, tabSize) {
201
+ for (var pos = 0, col = 0;;) {
202
+ var nextTab = string.indexOf("\t", pos);
203
+ if (nextTab == -1) { nextTab = string.length; }
204
+ var skipped = nextTab - pos;
205
+ if (nextTab == string.length || col + skipped >= goal)
206
+ { return pos + Math.min(skipped, goal - col) }
207
+ col += nextTab - pos;
208
+ col += tabSize - (col % tabSize);
209
+ pos = nextTab + 1;
210
+ if (col >= goal) { return pos }
211
+ }
212
  }
 
 
213
 
214
+ var spaceStrs = [""];
215
+ function spaceStr(n) {
216
+ while (spaceStrs.length <= n)
217
+ { spaceStrs.push(lst(spaceStrs) + " "); }
218
+ return spaceStrs[n]
219
+ }
220
 
221
+ function lst(arr) { return arr[arr.length-1] }
 
 
 
 
222
 
223
+ function map(array, f) {
224
+ var out = [];
225
+ for (var i = 0; i < array.length; i++) { out[i] = f(array[i], i); }
226
+ return out
227
+ }
228
 
229
+ function insertSorted(array, value, score) {
230
+ var pos = 0, priority = score(value);
231
+ while (pos < array.length && score(array[pos]) <= priority) { pos++; }
232
+ array.splice(pos, 0, value);
233
+ }
234
 
235
+ function nothing() {}
 
236
 
237
+ function createObj(base, props) {
238
+ var inst;
239
+ if (Object.create) {
240
+ inst = Object.create(base);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
241
  } else {
242
+ nothing.prototype = base;
243
+ inst = new nothing();
244
+ }
245
+ if (props) { copyObj(props, inst); }
246
+ return inst
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
247
  }
248
 
249
+ var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/;
250
+ function isWordCharBasic(ch) {
251
+ return /\w/.test(ch) || ch > "\x80" &&
252
+ (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch))
253
+ }
254
+ function isWordChar(ch, helper) {
255
+ if (!helper) { return isWordCharBasic(ch) }
256
+ if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) { return true }
257
+ return helper.test(ch)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
258
  }
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
259
 
260
+ function isEmpty(obj) {
261
+ for (var n in obj) { if (obj.hasOwnProperty(n) && obj[n]) { return false } }
262
+ return true
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
263
  }
264
 
265
+ // Extending unicode characters. A series of a non-extending char +
266
+ // any number of extending chars is treated as a single unit as far
267
+ // as editing and measuring is concerned. This is not fully correct,
268
+ // since some scripts/fonts/browsers also treat other configurations
269
+ // of code points as a group.
270
+ var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/;
271
+ function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) }
272
 
273
+ // Returns a number from the range [`0`; `str.length`] unless `pos` is outside that range.
274
+ function skipExtendingChars(str, pos, dir) {
275
+ while ((dir < 0 ? pos > 0 : pos < str.length) && isExtendingChar(str.charAt(pos))) { pos += dir; }
276
+ return pos
277
+ }
278
 
279
+ // Returns the value from the range [`from`; `to`] that satisfies
280
+ // `pred` and is closest to `from`. Assumes that at least `to`
281
+ // satisfies `pred`. Supports `from` being greater than `to`.
282
+ function findFirst(pred, from, to) {
283
+ // At any point we are certain `to` satisfies `pred`, don't know
284
+ // whether `from` does.
285
+ var dir = from > to ? -1 : 1;
286
+ for (;;) {
287
+ if (from == to) { return from }
288
+ var midF = (from + to) / 2, mid = dir < 0 ? Math.ceil(midF) : Math.floor(midF);
289
+ if (mid == from) { return pred(mid) ? from : to }
290
+ if (pred(mid)) { to = mid; }
291
+ else { from = mid + dir; }
292
+ }
293
+ }
294
+
295
+ // The display handles the DOM integration, both for input reading
296
+ // and content drawing. It holds references to DOM nodes and
297
+ // display-related state.
298
+
299
+ function Display(place, doc, input) {
300
+ var d = this;
301
+ this.input = input;
302
+
303
+ // Covers bottom-right square when both scrollbars are present.
304
+ d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler");
305
+ d.scrollbarFiller.setAttribute("cm-not-content", "true");
306
+ // Covers bottom of gutter when coverGutterNextToScrollbar is on
307
+ // and h scrollbar is present.
308
+ d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler");
309
+ d.gutterFiller.setAttribute("cm-not-content", "true");
310
+ // Will contain the actual code, positioned to cover the viewport.
311
+ d.lineDiv = eltP("div", null, "CodeMirror-code");
312
+ // Elements are added to these to represent selection and cursors.
313
+ d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1");
314
+ d.cursorDiv = elt("div", null, "CodeMirror-cursors");
315
+ // A visibility: hidden element used to find the size of things.
316
+ d.measure = elt("div", null, "CodeMirror-measure");
317
+ // When lines outside of the viewport are measured, they are drawn in this.
318
+ d.lineMeasure = elt("div", null, "CodeMirror-measure");
319
+ // Wraps everything that needs to exist inside the vertically-padded coordinate system
320
+ d.lineSpace = eltP("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],
321
+ null, "position: relative; outline: none");
322
+ var lines = eltP("div", [d.lineSpace], "CodeMirror-lines");
323
+ // Moved around its parent to cover visible view.
324
+ d.mover = elt("div", [lines], null, "position: relative");
325
+ // Set to the height of the document, allowing scrolling.
326
+ d.sizer = elt("div", [d.mover], "CodeMirror-sizer");
327
+ d.sizerWidth = null;
328
+ // Behavior of elts with overflow: auto and padding is
329
+ // inconsistent across browsers. This is used to ensure the
330
+ // scrollable area is big enough.
331
+ d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;");
332
+ // Will contain the gutters, if any.
333
+ d.gutters = elt("div", null, "CodeMirror-gutters");
334
+ d.lineGutter = null;
335
+ // Actual scrollable element.
336
+ d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll");
337
+ d.scroller.setAttribute("tabIndex", "-1");
338
+ // The element in which the editor lives.
339
+ d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror");
340
+
341
+ // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)
342
+ if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; }
343
+ if (!webkit && !(gecko && mobile)) { d.scroller.draggable = true; }
344
+
345
+ if (place) {
346
+ if (place.appendChild) { place.appendChild(d.wrapper); }
347
+ else { place(d.wrapper); }
348
+ }
349
+
350
+ // Current rendered range (may be bigger than the view window).
351
+ d.viewFrom = d.viewTo = doc.first;
352
+ d.reportedViewFrom = d.reportedViewTo = doc.first;
353
+ // Information about the rendered lines.
354
+ d.view = [];
355
+ d.renderedView = null;
356
+ // Holds info about a single rendered line when it was rendered
357
+ // for measurement, while not in view.
358
+ d.externalMeasured = null;
359
+ // Empty space (in pixels) above the view
360
+ d.viewOffset = 0;
361
+ d.lastWrapHeight = d.lastWrapWidth = 0;
362
+ d.updateLineNumbers = null;
363
+
364
+ d.nativeBarWidth = d.barHeight = d.barWidth = 0;
365
+ d.scrollbarsClipped = false;
366
+
367
+ // Used to only resize the line number gutter when necessary (when
368
+ // the amount of lines crosses a boundary that makes its width change)
369
+ d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null;
370
+ // Set to true when a non-horizontal-scrolling line widget is
371
+ // added. As an optimization, line widget aligning is skipped when
372
+ // this is false.
373
+ d.alignWidgets = false;
374
+
375
+ d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
376
+
377
+ // Tracks the maximum line length so that the horizontal scrollbar
378
+ // can be kept static when scrolling.
379
+ d.maxLine = null;
380
+ d.maxLineLength = 0;
381
+ d.maxLineChanged = false;
382
+
383
+ // Used for measuring wheel scrolling granularity
384
+ d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null;
385
+
386
+ // True when shift is held down.
387
+ d.shift = false;
388
+
389
+ // Used to track whether anything happened since the context menu
390
+ // was opened.
391
+ d.selForContextMenu = null;
392
+
393
+ d.activeTouch = null;
394
+
395
+ input.init(d);
396
+ }
397
+
398
+ // Find the line object corresponding to the given line number.
399
+ function getLine(doc, n) {
400
+ n -= doc.first;
401
+ if (n < 0 || n >= doc.size) { throw new Error("There is no line " + (n + doc.first) + " in the document.") }
402
+ var chunk = doc;
403
+ while (!chunk.lines) {
404
+ for (var i = 0;; ++i) {
405
+ var child = chunk.children[i], sz = child.chunkSize();
406
+ if (n < sz) { chunk = child; break }
407
+ n -= sz;
408
+ }
409
  }
410
+ return chunk.lines[n]
411
+ }
412
+
413
+ // Get the part of a document between two positions, as an array of
414
+ // strings.
415
+ function getBetween(doc, start, end) {
416
+ var out = [], n = start.line;
417
+ doc.iter(start.line, end.line + 1, function (line) {
418
+ var text = line.text;
419
+ if (n == end.line) { text = text.slice(0, end.ch); }
420
+ if (n == start.line) { text = text.slice(start.ch); }
421
+ out.push(text);
422
+ ++n;
423
+ });
424
+ return out
425
+ }
426
+ // Get the lines between from and to, as array of strings.
427
+ function getLines(doc, from, to) {
428
+ var out = [];
429
+ doc.iter(from, to, function (line) { out.push(line.text); }); // iter aborts when callback returns truthy value
430
+ return out
431
+ }
432
+
433
+ // Update the height of a line, propagating the height change
434
+ // upwards to parent nodes.
435
+ function updateLineHeight(line, height) {
436
+ var diff = height - line.height;
437
+ if (diff) { for (var n = line; n; n = n.parent) { n.height += diff; } }
438
+ }
439
+
440
+ // Given a line object, find its line number by walking up through
441
+ // its parent links.
442
+ function lineNo(line) {
443
+ if (line.parent == null) { return null }
444
+ var cur = line.parent, no = indexOf(cur.lines, line);
445
+ for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
446
+ for (var i = 0;; ++i) {
447
+ if (chunk.children[i] == cur) { break }
448
+ no += chunk.children[i].chunkSize();
449
  }
450
+ }
451
+ return no + cur.first
452
+ }
453
 
454
+ // Find the line at the given vertical position, using the height
455
+ // information in the document tree.
456
+ function lineAtHeight(chunk, h) {
457
+ var n = chunk.first;
458
+ outer: do {
459
+ for (var i$1 = 0; i$1 < chunk.children.length; ++i$1) {
460
+ var child = chunk.children[i$1], ch = child.height;
461
+ if (h < ch) { chunk = child; continue outer }
462
+ h -= ch;
463
+ n += child.chunkSize();
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
464
  }
465
+ return n
466
+ } while (!chunk.lines)
467
+ var i = 0;
468
+ for (; i < chunk.lines.length; ++i) {
469
+ var line = chunk.lines[i], lh = line.height;
470
+ if (h < lh) { break }
471
+ h -= lh;
472
+ }
473
+ return n + i
474
  }
475
 
476
+ function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size}
477
+
478
+ function lineNumberFor(options, i) {
479
+ return String(options.lineNumberFormatter(i + options.firstLineNumber))
480
+ }
481
 
482
+ // A Pos instance represents a position within the text.
483
+ function Pos(line, ch, sticky) {
484
+ if ( sticky === void 0 ) sticky = null;
485
 
486
+ if (!(this instanceof Pos)) { return new Pos(line, ch, sticky) }
487
+ this.line = line;
488
+ this.ch = ch;
489
+ this.sticky = sticky;
 
 
 
 
 
 
 
490
  }
491
 
492
+ // Compare two positions, return 0 if they are the same, a negative
493
+ // number when a is less, and a positive number otherwise.
494
+ function cmp(a, b) { return a.line - b.line || a.ch - b.ch }
495
 
496
+ function equalCursorPos(a, b) { return a.sticky == b.sticky && cmp(a, b) == 0 }
 
 
 
 
 
 
 
497
 
498
+ function copyPos(x) {return Pos(x.line, x.ch)}
499
+ function maxPos(a, b) { return cmp(a, b) < 0 ? b : a }
500
+ function minPos(a, b) { return cmp(a, b) < 0 ? a : b }
501
+
502
+ // Most of the external API clips given positions to make sure they
503
+ // actually exist within the document.
504
+ function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))}
505
+ function clipPos(doc, pos) {
506
+ if (pos.line < doc.first) { return Pos(doc.first, 0) }
507
+ var last = doc.first + doc.size - 1;
508
+ if (pos.line > last) { return Pos(last, getLine(doc, last).text.length) }
509
+ return clipToLen(pos, getLine(doc, pos.line).text.length)
510
+ }
511
+ function clipToLen(pos, linelen) {
512
+ var ch = pos.ch;
513
+ if (ch == null || ch > linelen) { return Pos(pos.line, linelen) }
514
+ else if (ch < 0) { return Pos(pos.line, 0) }
515
+ else { return pos }
516
+ }
517
+ function clipPosArray(doc, array) {
518
+ var out = [];
519
+ for (var i = 0; i < array.length; i++) { out[i] = clipPos(doc, array[i]); }
520
+ return out
521
+ }
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
522
 
523
+ // Optimize some code when these features are not used.
524
+ var sawReadOnlySpans = false, sawCollapsedSpans = false;
525
 
526
+ function seeReadOnlySpans() {
527
+ sawReadOnlySpans = true;
 
 
 
 
528
  }
 
 
529
 
530
+ function seeCollapsedSpans() {
531
+ sawCollapsedSpans = true;
532
+ }
533
 
534
+ // TEXTMARKER SPANS
 
 
535
 
536
+ function MarkedSpan(marker, from, to) {
537
+ this.marker = marker;
538
+ this.from = from; this.to = to;
539
+ }
 
 
 
 
540
 
541
+ // Search an array of spans for a span matching the given marker.
542
+ function getMarkedSpanFor(spans, marker) {
543
+ if (spans) { for (var i = 0; i < spans.length; ++i) {
544
+ var span = spans[i];
545
+ if (span.marker == marker) { return span }
546
+ } }
547
+ }
548
+ // Remove a span from an array, returning undefined if no spans are
549
+ // left (we don't store arrays for lines without spans).
550
+ function removeMarkedSpan(spans, span) {
551
+ var r;
552
+ for (var i = 0; i < spans.length; ++i)
553
+ { if (spans[i] != span) { (r || (r = [])).push(spans[i]); } }
554
+ return r
555
+ }
556
+ // Add a span to a line.
557
+ function addMarkedSpan(line, span) {
558
+ line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span];
559
+ span.marker.attachLine(line);
560
+ }
561
+
562
+ // Used for the algorithm that adjusts markers for a change in the
563
+ // document. These functions cut an array of spans at a given
564
+ // character position, returning an array of remaining chunks (or
565
+ // undefined if nothing remains).
566
+ function markedSpansBefore(old, startCh, isInsert) {
567
+ var nw;
568
+ if (old) { for (var i = 0; i < old.length; ++i) {
569
+ var span = old[i], marker = span.marker;
570
+ var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);
571
+ if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) {
572
+ var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh)
573
+ ;(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to));
574
+ }
575
+ } }
576
+ return nw
577
+ }
578
+ function markedSpansAfter(old, endCh, isInsert) {
579
+ var nw;
580
+ if (old) { for (var i = 0; i < old.length; ++i) {
581
+ var span = old[i], marker = span.marker;
582
+ var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);
583
+ if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) {
584
+ var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh)
585
+ ;(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,
586
+ span.to == null ? null : span.to - endCh));
587
+ }
588
+ } }
589
+ return nw
590
+ }
591
+
592
+ // Given a change object, compute the new set of marker spans that
593
+ // cover the line in which the change took place. Removes spans
594
+ // entirely within the change, reconnects spans belonging to the
595
+ // same marker that appear on both sides of the change, and cuts off
596
+ // spans partially within the change. Returns an array of span
597
+ // arrays with one element for each line in (after) the change.
598
+ function stretchSpansOverChange(doc, change) {
599
+ if (change.full) { return null }
600
+ var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans;
601
+ var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans;
602
+ if (!oldFirst && !oldLast) { return null }
603
+
604
+ var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0;
605
+ // Get the spans that 'stick out' on both sides
606
+ var first = markedSpansBefore(oldFirst, startCh, isInsert);
607
+ var last = markedSpansAfter(oldLast, endCh, isInsert);
608
+
609
+ // Next, merge those two ends
610
+ var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0);
611
+ if (first) {
612
+ // Fix up .to properties of first
613
+ for (var i = 0; i < first.length; ++i) {
614
+ var span = first[i];
615
+ if (span.to == null) {
616
+ var found = getMarkedSpanFor(last, span.marker);
617
+ if (!found) { span.to = startCh; }
618
+ else if (sameLine) { span.to = found.to == null ? null : found.to + offset; }
619
+ }
620
+ }
621
+ }
622
+ if (last) {
623
+ // Fix up .from in last (or move them into first in case of sameLine)
624
+ for (var i$1 = 0; i$1 < last.length; ++i$1) {
625
+ var span$1 = last[i$1];
626
+ if (span$1.to != null) { span$1.to += offset; }
627
+ if (span$1.from == null) {
628
+ var found$1 = getMarkedSpanFor(first, span$1.marker);
629
+ if (!found$1) {
630
+ span$1.from = offset;
631
+ if (sameLine) { (first || (first = [])).push(span$1); }
632
+ }
633
+ } else {
634
+ span$1.from += offset;
635
+ if (sameLine) { (first || (first = [])).push(span$1); }
636
+ }
637
+ }
638
+ }
639
+ // Make sure we didn't create any zero-length spans
640
+ if (first) { first = clearEmptySpans(first); }
641
+ if (last && last != first) { last = clearEmptySpans(last); }
642
+
643
+ var newMarkers = [first];
644
+ if (!sameLine) {
645
+ // Fill gap with whole-line-spans
646
+ var gap = change.text.length - 2, gapMarkers;
647
+ if (gap > 0 && first)
648
+ { for (var i$2 = 0; i$2 < first.length; ++i$2)
649
+ { if (first[i$2].to == null)
650
+ { (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i$2].marker, null, null)); } } }
651
+ for (var i$3 = 0; i$3 < gap; ++i$3)
652
+ { newMarkers.push(gapMarkers); }
653
+ newMarkers.push(last);
654
+ }
655
+ return newMarkers
656
+ }
657
+
658
+ // Remove spans that are empty and don't have a clearWhenEmpty
659
+ // option of false.
660
+ function clearEmptySpans(spans) {
661
+ for (var i = 0; i < spans.length; ++i) {
662
+ var span = spans[i];
663
+ if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)
664
+ { spans.splice(i--, 1); }
665
+ }
666
+ if (!spans.length) { return null }
667
+ return spans
668
+ }
669
+
670
+ // Used to 'clip' out readOnly ranges when making a change.
671
+ function removeReadOnlyRanges(doc, from, to) {
672
+ var markers = null;
673
+ doc.iter(from.line, to.line + 1, function (line) {
674
+ if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
675
+ var mark = line.markedSpans[i].marker;
676
+ if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))
677
+ { (markers || (markers = [])).push(mark); }
678
+ } }
679
+ });
680
+ if (!markers) { return null }
681
+ var parts = [{from: from, to: to}];
682
+ for (var i = 0; i < markers.length; ++i) {
683
+ var mk = markers[i], m = mk.find(0);
684
+ for (var j = 0; j < parts.length; ++j) {
685
+ var p = parts[j];
686
+ if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) { continue }
687
+ var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to);
688
+ if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)
689
+ { newParts.push({from: p.from, to: m.from}); }
690
+ if (dto > 0 || !mk.inclusiveRight && !dto)
691
+ { newParts.push({from: m.to, to: p.to}); }
692
+ parts.splice.apply(parts, newParts);
693
+ j += newParts.length - 3;
694
+ }
695
+ }
696
+ return parts
697
+ }
698
 
699
+ // Connect or disconnect spans from a line.
700
+ function detachMarkedSpans(line) {
701
+ var spans = line.markedSpans;
702
+ if (!spans) { return }
703
+ for (var i = 0; i < spans.length; ++i)
704
+ { spans[i].marker.detachLine(line); }
705
+ line.markedSpans = null;
706
+ }
707
+ function attachMarkedSpans(line, spans) {
708
+ if (!spans) { return }
709
+ for (var i = 0; i < spans.length; ++i)
710
+ { spans[i].marker.attachLine(line); }
711
+ line.markedSpans = spans;
712
+ }
713
+
714
+ // Helpers used when computing which overlapping collapsed span
715
+ // counts as the larger one.
716
+ function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 }
717
+ function extraRight(marker) { return marker.inclusiveRight ? 1 : 0 }
718
+
719
+ // Returns a number indicating which of two overlapping collapsed
720
+ // spans is larger (and thus includes the other). Falls back to
721
+ // comparing ids when the spans cover exactly the same range.
722
+ function compareCollapsedMarkers(a, b) {
723
+ var lenDiff = a.lines.length - b.lines.length;
724
+ if (lenDiff != 0) { return lenDiff }
725
+ var aPos = a.find(), bPos = b.find();
726
+ var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b);
727
+ if (fromCmp) { return -fromCmp }
728
+ var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b);
729
+ if (toCmp) { return toCmp }
730
+ return b.id - a.id
731
+ }
732
+
733
+ // Find out whether a line ends or starts in a collapsed span. If
734
+ // so, return the marker for that span.
735
+ function collapsedSpanAtSide(line, start) {
736
+ var sps = sawCollapsedSpans && line.markedSpans, found;
737
+ if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {
738
+ sp = sps[i];
739
+ if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&
740
+ (!found || compareCollapsedMarkers(found, sp.marker) < 0))
741
+ { found = sp.marker; }
742
+ } }
743
+ return found
744
+ }
745
+ function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) }
746
+ function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) }
747
 
748
+ function collapsedSpanAround(line, ch) {
749
+ var sps = sawCollapsedSpans && line.markedSpans, found;
750
+ if (sps) { for (var i = 0; i < sps.length; ++i) {
751
+ var sp = sps[i];
752
+ if (sp.marker.collapsed && (sp.from == null || sp.from < ch) && (sp.to == null || sp.to > ch) &&
753
+ (!found || compareCollapsedMarkers(found, sp.marker) < 0)) { found = sp.marker; }
754
+ } }
755
+ return found
756
+ }
757
 
758
+ // Test whether there exists a collapsed span that partially
759
+ // overlaps (covers the start or end, but not both) of a new span.
760
+ // Such overlap is not allowed.
761
+ function conflictingCollapsedRange(doc, lineNo$$1, from, to, marker) {
762
+ var line = getLine(doc, lineNo$$1);
763
+ var sps = sawCollapsedSpans && line.markedSpans;
764
+ if (sps) { for (var i = 0; i < sps.length; ++i) {
765
+ var sp = sps[i];
766
+ if (!sp.marker.collapsed) { continue }
767
+ var found = sp.marker.find(0);
768
+ var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker);
769
+ var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker);
770
+ if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) { continue }
771
+ if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) ||
772
+ fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0))
773
+ { return true }
774
+ } }
775
+ }
776
 
777
+ // A visual line is a line as drawn on the screen. Folding, for
778
+ // example, can cause multiple logical lines to appear on the same
779
+ // visual line. This finds the start of the visual line that the
780
+ // given line is part of (usually that is the line itself).
781
+ function visualLine(line) {
782
+ var merged;
783
+ while (merged = collapsedSpanAtStart(line))
784
+ { line = merged.find(-1, true).line; }
785
+ return line
786
+ }
787
+
788
+ function visualLineEnd(line) {
789
+ var merged;
790
+ while (merged = collapsedSpanAtEnd(line))
791
+ { line = merged.find(1, true).line; }
792
+ return line
793
+ }
794
+
795
+ // Returns an array of logical lines that continue the visual line
796
+ // started by the argument, or undefined if there are no such lines.
797
+ function visualLineContinued(line) {
798
+ var merged, lines;
799
+ while (merged = collapsedSpanAtEnd(line)) {
800
+ line = merged.find(1, true).line
801
+ ;(lines || (lines = [])).push(line);
802
+ }
803
+ return lines
804
+ }
805
+
806
+ // Get the line number of the start of the visual line that the
807
+ // given line number is part of.
808
+ function visualLineNo(doc, lineN) {
809
+ var line = getLine(doc, lineN), vis = visualLine(line);
810
+ if (line == vis) { return lineN }
811
+ return lineNo(vis)
812
+ }
813
+
814
+ // Get the line number of the start of the next visual line after
815
+ // the given line.
816
+ function visualLineEndNo(doc, lineN) {
817
+ if (lineN > doc.lastLine()) { return lineN }
818
+ var line = getLine(doc, lineN), merged;
819
+ if (!lineIsHidden(doc, line)) { return lineN }
820
+ while (merged = collapsedSpanAtEnd(line))
821
+ { line = merged.find(1, true).line; }
822
+ return lineNo(line) + 1
823
+ }
824
+
825
+ // Compute whether a line is hidden. Lines count as hidden when they
826
+ // are part of a visual line that starts with another line, or when
827
+ // they are entirely covered by collapsed, non-widget span.
828
+ function lineIsHidden(doc, line) {
829
+ var sps = sawCollapsedSpans && line.markedSpans;
830
+ if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {
831
+ sp = sps[i];
832
+ if (!sp.marker.collapsed) { continue }
833
+ if (sp.from == null) { return true }
834
+ if (sp.marker.widgetNode) { continue }
835
+ if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))
836
+ { return true }
837
+ } }
838
+ }
839
+ function lineIsHiddenInner(doc, line, span) {
840
+ if (span.to == null) {
841
+ var end = span.marker.find(1, true);
842
+ return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker))
843
+ }
844
+ if (span.marker.inclusiveRight && span.to == line.text.length)
845
+ { return true }
846
+ for (var sp = (void 0), i = 0; i < line.markedSpans.length; ++i) {
847
+ sp = line.markedSpans[i];
848
+ if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&
849
+ (sp.to == null || sp.to != span.from) &&
850
+ (sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&
851
+ lineIsHiddenInner(doc, line, sp)) { return true }
852
+ }
853
+ }
854
+
855
+ // Find the height above the given line.
856
+ function heightAtLine(lineObj) {
857
+ lineObj = visualLine(lineObj);
858
+
859
+ var h = 0, chunk = lineObj.parent;
860
+ for (var i = 0; i < chunk.lines.length; ++i) {
861
+ var line = chunk.lines[i];
862
+ if (line == lineObj) { break }
863
+ else { h += line.height; }
864
+ }
865
+ for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {
866
+ for (var i$1 = 0; i$1 < p.children.length; ++i$1) {
867
+ var cur = p.children[i$1];
868
+ if (cur == chunk) { break }
869
+ else { h += cur.height; }
870
+ }
871
+ }
872
+ return h
873
+ }
874
+
875
+ // Compute the character length of a line, taking into account
876
+ // collapsed ranges (see markText) that might hide parts, and join
877
+ // other lines onto it.
878
+ function lineLength(line) {
879
+ if (line.height == 0) { return 0 }
880
+ var len = line.text.length, merged, cur = line;
881
+ while (merged = collapsedSpanAtStart(cur)) {
882
+ var found = merged.find(0, true);
883
+ cur = found.from.line;
884
+ len += found.from.ch - found.to.ch;
885
+ }
886
+ cur = line;
887
+ while (merged = collapsedSpanAtEnd(cur)) {
888
+ var found$1 = merged.find(0, true);
889
+ len -= cur.text.length - found$1.from.ch;
890
+ cur = found$1.to.line;
891
+ len += cur.text.length - found$1.to.ch;
892
+ }
893
+ return len
894
+ }
895
+
896
+ // Find the longest line in the document.
897
+ function findMaxLine(cm) {
898
+ var d = cm.display, doc = cm.doc;
899
+ d.maxLine = getLine(doc, doc.first);
900
+ d.maxLineLength = lineLength(d.maxLine);
901
+ d.maxLineChanged = true;
902
+ doc.iter(function (line) {
903
+ var len = lineLength(line);
904
+ if (len > d.maxLineLength) {
905
+ d.maxLineLength = len;
906
+ d.maxLine = line;
907
+ }
908
+ });
909
  }
 
910
 
911
+ // BIDI HELPERS
 
912
 
913
+ function iterateBidiSections(order, from, to, f) {
914
+ if (!order) { return f(from, to, "ltr", 0) }
915
+ var found = false;
916
+ for (var i = 0; i < order.length; ++i) {
917
+ var part = order[i];
918
+ if (part.from < to && part.to > from || from == to && part.to == from) {
919
+ f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr", i);
920
+ found = true;
921
+ }
922
+ }
923
+ if (!found) { f(from, to, "ltr"); }
924
  }
 
 
 
 
925
 
926
+ var bidiOther = null;
927
+ function getBidiPartAt(order, ch, sticky) {
928
+ var found;
929
+ bidiOther = null;
930
+ for (var i = 0; i < order.length; ++i) {
931
+ var cur = order[i];
932
+ if (cur.from < ch && cur.to > ch) { return i }
933
+ if (cur.to == ch) {
934
+ if (cur.from != cur.to && sticky == "before") { found = i; }
935
+ else { bidiOther = i; }
936
+ }
937
+ if (cur.from == ch) {
938
+ if (cur.from != cur.to && sticky != "before") { found = i; }
939
+ else { bidiOther = i; }
940
+ }
941
+ }
942
+ return found != null ? found : bidiOther
943
+ }
944
+
945
+ // Bidirectional ordering algorithm
946
+ // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
947
+ // that this (partially) implements.
948
+
949
+ // One-char codes used for character types:
950
+ // L (L): Left-to-Right
951
+ // R (R): Right-to-Left
952
+ // r (AL): Right-to-Left Arabic
953
+ // 1 (EN): European Number
954
+ // + (ES): European Number Separator
955
+ // % (ET): European Number Terminator
956
+ // n (AN): Arabic Number
957
+ // , (CS): Common Number Separator
958
+ // m (NSM): Non-Spacing Mark
959
+ // b (BN): Boundary Neutral
960
+ // s (B): Paragraph Separator
961
+ // t (S): Segment Separator
962
+ // w (WS): Whitespace
963
+ // N (ON): Other Neutrals
964
+
965
+ // Returns null if characters are ordered as they appear
966
+ // (left-to-right), or an array of sections ({from, to, level}
967
+ // objects) in the order in which they occur visually.
968
+ var bidiOrdering = (function() {
969
+ // Character types for codepoints 0 to 0xff
970
+ var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN";
971
+ // Character types for codepoints 0x600 to 0x6f9
972
+ var arabicTypes = "nnnnnnNNr%%r,rNNmmmmmmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmnNmmmmmmrrmmNmmmmrr1111111111";
973
+ function charType(code) {
974
+ if (code <= 0xf7) { return lowTypes.charAt(code) }
975
+ else if (0x590 <= code && code <= 0x5f4) { return "R" }
976
+ else if (0x600 <= code && code <= 0x6f9) { return arabicTypes.charAt(code - 0x600) }
977
+ else if (0x6ee <= code && code <= 0x8ac) { return "r" }
978
+ else if (0x2000 <= code && code <= 0x200b) { return "w" }
979
+ else if (code == 0x200c) { return "b" }
980
+ else { return "L" }
981
+ }
982
+
983
+ var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/;
984
+ var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/;
985
+
986
+ function BidiSpan(level, from, to) {
987
+ this.level = level;
988
+ this.from = from; this.to = to;
989
+ }
990
+
991
+ return function(str, direction) {
992
+ var outerType = direction == "ltr" ? "L" : "R";
993
+
994
+ if (str.length == 0 || direction == "ltr" && !bidiRE.test(str)) { return false }
995
+ var len = str.length, types = [];
996
+ for (var i = 0; i < len; ++i)
997
+ { types.push(charType(str.charCodeAt(i))); }
998
+
999
+ // W1. Examine each non-spacing mark (NSM) in the level run, and
1000
+ // change the type of the NSM to the type of the previous
1001
+ // character. If the NSM is at the start of the level run, it will
1002
+ // get the type of sor.
1003
+ for (var i$1 = 0, prev = outerType; i$1 < len; ++i$1) {
1004
+ var type = types[i$1];
1005
+ if (type == "m") { types[i$1] = prev; }
1006
+ else { prev = type; }
1007
+ }
1008
 
1009
+ // W2. Search backwards from each instance of a European number
1010
+ // until the first strong type (R, L, AL, or sor) is found. If an
1011
+ // AL is found, change the type of the European number to Arabic
1012
+ // number.
1013
+ // W3. Change all ALs to R.
1014
+ for (var i$2 = 0, cur = outerType; i$2 < len; ++i$2) {
1015
+ var type$1 = types[i$2];
1016
+ if (type$1 == "1" && cur == "r") { types[i$2] = "n"; }
1017
+ else if (isStrong.test(type$1)) { cur = type$1; if (type$1 == "r") { types[i$2] = "R"; } }
1018
+ }
1019
 
1020
+ // W4. A single European separator between two European numbers
1021
+ // changes to a European number. A single common separator between
1022
+ // two numbers of the same type changes to that type.
1023
+ for (var i$3 = 1, prev$1 = types[0]; i$3 < len - 1; ++i$3) {
1024
+ var type$2 = types[i$3];
1025
+ if (type$2 == "+" && prev$1 == "1" && types[i$3+1] == "1") { types[i$3] = "1"; }
1026
+ else if (type$2 == "," && prev$1 == types[i$3+1] &&
1027
+ (prev$1 == "1" || prev$1 == "n")) { types[i$3] = prev$1; }
1028
+ prev$1 = type$2;
1029
+ }
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1030
 
1031
+ // W5. A sequence of European terminators adjacent to European
1032
+ // numbers changes to all European numbers.
1033
+ // W6. Otherwise, separators and terminators change to Other
1034
+ // Neutral.
1035
+ for (var i$4 = 0; i$4 < len; ++i$4) {
1036
+ var type$3 = types[i$4];
1037
+ if (type$3 == ",") { types[i$4] = "N"; }
1038
+ else if (type$3 == "%") {
1039
+ var end = (void 0);
1040
+ for (end = i$4 + 1; end < len && types[end] == "%"; ++end) {}
1041
+ var replace = (i$4 && types[i$4-1] == "!") || (end < len && types[end] == "1") ? "1" : "N";
1042
+ for (var j = i$4; j < end; ++j) { types[j] = replace; }
1043
+ i$4 = end - 1;
1044
+ }
1045
+ }
1046
 
1047
+ // W7. Search backwards from each instance of a European number
1048
+ // until the first strong type (R, L, or sor) is found. If an L is
1049
+ // found, then change the type of the European number to L.
1050
+ for (var i$5 = 0, cur$1 = outerType; i$5 < len; ++i$5) {
1051
+ var type$4 = types[i$5];
1052
+ if (cur$1 == "L" && type$4 == "1") { types[i$5] = "L"; }
1053
+ else if (isStrong.test(type$4)) { cur$1 = type$4; }
1054
+ }
1055
 
1056
+ // N1. A sequence of neutrals takes the direction of the
1057
+ // surrounding strong text if the text on both sides has the same
1058
+ // direction. European and Arabic numbers act as if they were R in
1059
+ // terms of their influence on neutrals. Start-of-level-run (sor)
1060
+ // and end-of-level-run (eor) are used at level run boundaries.
1061
+ // N2. Any remaining neutrals take the embedding direction.
1062
+ for (var i$6 = 0; i$6 < len; ++i$6) {
1063
+ if (isNeutral.test(types[i$6])) {
1064
+ var end$1 = (void 0);
1065
+ for (end$1 = i$6 + 1; end$1 < len && isNeutral.test(types[end$1]); ++end$1) {}
1066
+ var before = (i$6 ? types[i$6-1] : outerType) == "L";
1067
+ var after = (end$1 < len ? types[end$1] : outerType) == "L";
1068
+ var replace$1 = before == after ? (before ? "L" : "R") : outerType;
1069
+ for (var j$1 = i$6; j$1 < end$1; ++j$1) { types[j$1] = replace$1; }
1070
+ i$6 = end$1 - 1;
 
 
 
1071
  }
 
1072
  }
 
 
 
1073
 
1074
+ // Here we depart from the documented algorithm, in order to avoid
1075
+ // building up an actual levels array. Since there are only three
1076
+ // levels (0, 1, 2) in an implementation that doesn't take
1077
+ // explicit embedding into account, we can build up the order on
1078
+ // the fly, without following the level-based algorithm.
1079
+ var order = [], m;
1080
+ for (var i$7 = 0; i$7 < len;) {
1081
+ if (countsAsLeft.test(types[i$7])) {
1082
+ var start = i$7;
1083
+ for (++i$7; i$7 < len && countsAsLeft.test(types[i$7]); ++i$7) {}
1084
+ order.push(new BidiSpan(0, start, i$7));
1085
+ } else {
1086
+ var pos = i$7, at = order.length;
1087
+ for (++i$7; i$7 < len && types[i$7] != "L"; ++i$7) {}
1088
+ for (var j$2 = pos; j$2 < i$7;) {
1089
+ if (countsAsNum.test(types[j$2])) {
1090
+ if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)); }
1091
+ var nstart = j$2;
1092
+ for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {}
1093
+ order.splice(at, 0, new BidiSpan(2, nstart, j$2));
1094
+ pos = j$2;
1095
+ } else { ++j$2; }
1096
+ }
1097
+ if (pos < i$7) { order.splice(at, 0, new BidiSpan(1, pos, i$7)); }
1098
+ }
1099
+ }
1100
+ if (direction == "ltr") {
1101
+ if (order[0].level == 1 && (m = str.match(/^\s+/))) {
1102
+ order[0].from = m[0].length;
1103
+ order.unshift(new BidiSpan(0, 0, m[0].length));
1104
+ }
1105
+ if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
1106
+ lst(order).to -= m[0].length;
1107
+ order.push(new BidiSpan(0, len - m[0].length, len));
1108
+ }
1109
+ }
1110
 
1111
+ return direction == "rtl" ? order.reverse() : order
 
 
 
 
 
 
 
1112
  }
1113
+ })();
1114
+
1115
+ // Get the bidi ordering for the given line (and cache it). Returns
1116
+ // false for lines that are fully left-to-right, and an array of
1117
+ // BidiSpan objects otherwise.
1118
+ function getOrder(line, direction) {
1119
+ var order = line.order;
1120
+ if (order == null) { order = line.order = bidiOrdering(line.text, direction); }
1121
+ return order
1122
  }
 
1123
 
1124
+ // EVENT HANDLING
1125
 
1126
+ // Lightweight event framework. on/off also work on DOM nodes,
1127
+ // registering native DOM handlers.
1128
 
1129
+ var noHandlers = [];
 
 
 
 
1130
 
1131
+ var on = function(emitter, type, f) {
1132
+ if (emitter.addEventListener) {
1133
+ emitter.addEventListener(type, f, false);
1134
+ } else if (emitter.attachEvent) {
1135
+ emitter.attachEvent("on" + type, f);
1136
+ } else {
1137
+ var map$$1 = emitter._handlers || (emitter._handlers = {});
1138
+ map$$1[type] = (map$$1[type] || noHandlers).concat(f);
1139
+ }
1140
+ };
1141
 
1142
+ function getHandlers(emitter, type) {
1143
+ return emitter._handlers && emitter._handlers[type] || noHandlers
 
 
 
 
 
 
 
 
 
 
1144
  }
 
1145
 
1146
+ function off(emitter, type, f) {
1147
+ if (emitter.removeEventListener) {
1148
+ emitter.removeEventListener(type, f, false);
1149
+ } else if (emitter.detachEvent) {
1150
+ emitter.detachEvent("on" + type, f);
1151
+ } else {
1152
+ var map$$1 = emitter._handlers, arr = map$$1 && map$$1[type];
1153
+ if (arr) {
1154
+ var index = indexOf(arr, f);
1155
+ if (index > -1)
1156
+ { map$$1[type] = arr.slice(0, index).concat(arr.slice(index + 1)); }
1157
+ }
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1158
  }
1159
+ }
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1160
 
1161
+ function signal(emitter, type /*, values...*/) {
1162
+ var handlers = getHandlers(emitter, type);
1163
+ if (!handlers.length) { return }
1164
+ var args = Array.prototype.slice.call(arguments, 2);
1165
+ for (var i = 0; i < handlers.length; ++i) { handlers[i].apply(null, args); }
 
 
 
 
 
 
 
 
1166
  }
 
 
1167
 
1168
+ // The DOM events that CodeMirror handles can be overridden by
1169
+ // registering a (non-DOM) handler on the editor for the event name,
1170
+ // and preventDefault-ing the event in that handler.
1171
+ function signalDOMEvent(cm, e, override) {
1172
+ if (typeof e == "string")
1173
+ { e = {type: e, preventDefault: function() { this.defaultPrevented = true; }}; }
1174
+ signal(cm, override || e.type, cm, e);
1175
+ return e_defaultPrevented(e) || e.codemirrorIgnore
1176
+ }
1177
+
1178
+ function signalCursorActivity(cm) {
1179
+ var arr = cm._handlers && cm._handlers.cursorActivity;
1180
+ if (!arr) { return }
1181
+ var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []);
1182
+ for (var i = 0; i < arr.length; ++i) { if (indexOf(set, arr[i]) == -1)
1183
+ { set.push(arr[i]); } }
1184
+ }
1185
+
1186
+ function hasHandler(emitter, type) {
1187
+ return getHandlers(emitter, type).length > 0
1188
+ }
1189
+
1190
+ // Add on and off methods to a constructor's prototype, to make
1191
+ // registering events on such objects more convenient.
1192
+ function eventMixin(ctor) {
1193
+ ctor.prototype.on = function(type, f) {on(this, type, f);};
1194
+ ctor.prototype.off = function(type, f) {off(this, type, f);};
1195
+ }
1196
+
1197
+ // Due to the fact that we still support jurassic IE versions, some
1198
+ // compatibility wrappers are needed.
1199
+
1200
+ function e_preventDefault(e) {
1201
+ if (e.preventDefault) { e.preventDefault(); }
1202
+ else { e.returnValue = false; }
1203
+ }
1204
+ function e_stopPropagation(e) {
1205
+ if (e.stopPropagation) { e.stopPropagation(); }
1206
+ else { e.cancelBubble = true; }
1207
+ }
1208
+ function e_defaultPrevented(e) {
1209
+ return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false
1210
+ }
1211
+ function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);}
1212
+
1213
+ function e_target(e) {return e.target || e.srcElement}
1214
+ function e_button(e) {
1215
+ var b = e.which;
1216
+ if (b == null) {
1217
+ if (e.button & 1) { b = 1; }
1218
+ else if (e.button & 2) { b = 3; }
1219
+ else if (e.button & 4) { b = 2; }
1220
+ }
1221
+ if (mac && e.ctrlKey && b == 1) { b = 3; }
1222
+ return b
1223
+ }
1224
+
1225
+ // Detect drag-and-drop
1226
+ var dragAndDrop = function() {
1227
+ // There is *some* kind of drag-and-drop support in IE6-8, but I
1228
+ // couldn't get it to work yet.
1229
+ if (ie && ie_version < 9) { return false }
1230
+ var div = elt('div');
1231
+ return "draggable" in div || "dragDrop" in div
1232
+ }();
1233
+
1234
+ var zwspSupported;
1235
+ function zeroWidthElement(measure) {
1236
+ if (zwspSupported == null) {
1237
+ var test = elt("span", "\u200b");
1238
+ removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")]));
1239
+ if (measure.firstChild.offsetHeight != 0)
1240
+ { zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8); }
1241
+ }
1242
+ var node = zwspSupported ? elt("span", "\u200b") :
1243
+ elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px");
1244
+ node.setAttribute("cm-text", "");
1245
+ return node
1246
+ }
1247
+
1248
+ // Feature-detect IE's crummy client rect reporting for bidi text
1249
+ var badBidiRects;
1250
+ function hasBadBidiRects(measure) {
1251
+ if (badBidiRects != null) { return badBidiRects }
1252
+ var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA"));
1253
+ var r0 = range(txt, 0, 1).getBoundingClientRect();
1254
+ var r1 = range(txt, 1, 2).getBoundingClientRect();
1255
+ removeChildren(measure);
1256
+ if (!r0 || r0.left == r0.right) { return false } // Safari returns null in some cases (#2780)
1257
+ return badBidiRects = (r1.right - r0.right < 3)
1258
+ }
1259
+
1260
+ // See if "".split is the broken IE version, if so, provide an
1261
+ // alternative way to split lines.
1262
+ var splitLinesAuto = "\n\nb".split(/\n/).length != 3 ? function (string) {
1263
+ var pos = 0, result = [], l = string.length;
1264
+ while (pos <= l) {
1265
+ var nl = string.indexOf("\n", pos);
1266
+ if (nl == -1) { nl = string.length; }
1267
+ var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl);
1268
+ var rt = line.indexOf("\r");
1269
+ if (rt != -1) {
1270
+ result.push(line.slice(0, rt));
1271
+ pos += rt + 1;
1272
+ } else {
1273
+ result.push(line);
1274
+ pos = nl + 1;
1275
+ }
1276
+ }
1277
+ return result
1278
+ } : function (string) { return string.split(/\r\n?|\n/); };
1279
 
1280
+ var hasSelection = window.getSelection ? function (te) {
1281
+ try { return te.selectionStart != te.selectionEnd }
1282
+ catch(e) { return false }
1283
+ } : function (te) {
1284
+ var range$$1;
1285
+ try {range$$1 = te.ownerDocument.selection.createRange();}
1286
+ catch(e) {}
1287
+ if (!range$$1 || range$$1.parentElement() != te) { return false }
1288
+ return range$$1.compareEndPoints("StartToEnd", range$$1) != 0
1289
+ };
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1290
 
1291
+ var hasCopyEvent = (function () {
1292
+ var e = elt("div");
1293
+ if ("oncopy" in e) { return true }
1294
+ e.setAttribute("oncopy", "return;");
1295
+ return typeof e.oncopy == "function"
1296
+ })();
1297
+
1298
+ var badZoomedRects = null;
1299
+ function hasBadZoomedRects(measure) {
1300
+ if (badZoomedRects != null) { return badZoomedRects }
1301
+ var node = removeChildrenAndAdd(measure, elt("span", "x"));
1302
+ var normal = node.getBoundingClientRect();
1303
+ var fromRange = range(node, 0, 1).getBoundingClientRect();
1304
+ return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1
1305
+ }
1306
+
1307
+ // Known modes, by name and by MIME
1308
+ var modes = {}, mimeModes = {};
1309
+
1310
+ // Extra arguments are stored as the mode's dependencies, which is
1311
+ // used by (legacy) mechanisms like loadmode.js to automatically
1312
+ // load a mode. (Preferred mechanism is the require/define calls.)
1313
+ function defineMode(name, mode) {
1314
+ if (arguments.length > 2)
1315
+ { mode.dependencies = Array.prototype.slice.call(arguments, 2); }
1316
+ modes[name] = mode;
1317
+ }
1318
+
1319
+ function defineMIME(mime, spec) {
1320
+ mimeModes[mime] = spec;
1321
+ }
1322
+
1323
+ // Given a MIME type, a {name, ...options} config object, or a name
1324
+ // string, return a mode config object.
1325
+ function resolveMode(spec) {
1326
+ if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
1327
+ spec = mimeModes[spec];
1328
+ } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
1329
+ var found = mimeModes[spec.name];
1330
+ if (typeof found == "string") { found = {name: found}; }
1331
+ spec = createObj(found, spec);
1332
+ spec.name = found.name;
1333
+ } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
1334
+ return resolveMode("application/xml")
1335
+ } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+json$/.test(spec)) {
1336
+ return resolveMode("application/json")
1337
+ }
1338
+ if (typeof spec == "string") { return {name: spec} }
1339
+ else { return spec || {name: "null"} }
1340
+ }
1341
+
1342
+ // Given a mode spec (anything that resolveMode accepts), find and
1343
+ // initialize an actual mode object.
1344
+ function getMode(options, spec) {
1345
+ spec = resolveMode(spec);
1346
+ var mfactory = modes[spec.name];
1347
+ if (!mfactory) { return getMode(options, "text/plain") }
1348
+ var modeObj = mfactory(options, spec);
1349
+ if (modeExtensions.hasOwnProperty(spec.name)) {
1350
+ var exts = modeExtensions[spec.name];
1351
+ for (var prop in exts) {
1352
+ if (!exts.hasOwnProperty(prop)) { continue }
1353
+ if (modeObj.hasOwnProperty(prop)) { modeObj["_" + prop] = modeObj[prop]; }
1354
+ modeObj[prop] = exts[prop];
1355
  }
1356
  }
1357
+ modeObj.name = spec.name;
1358
+ if (spec.helperType) { modeObj.helperType = spec.helperType; }
1359
+ if (spec.modeProps) { for (var prop$1 in spec.modeProps)
1360
+ { modeObj[prop$1] = spec.modeProps[prop$1]; } }
1361
 
1362
+ return modeObj
1363
+ }
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1364
 
1365
+ // This can be used to attach properties to mode objects from
1366
+ // outside the actual mode definition.
1367
+ var modeExtensions = {};
1368
+ function extendMode(mode, properties) {
1369
+ var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});
1370
+ copyObj(properties, exts);
1371
+ }
 
 
 
 
 
 
 
 
 
1372
 
1373
+ function copyState(mode, state) {
1374
+ if (state === true) { return state }
1375
+ if (mode.copyState) { return mode.copyState(state) }
1376
+ var nstate = {};
1377
+ for (var n in state) {
1378
+ var val = state[n];
1379
+ if (val instanceof Array) { val = val.concat([]); }
1380
+ nstate[n] = val;
1381
  }
1382
+ return nstate
1383
+ }
 
 
 
1384
 
1385
+ // Given a mode and a state (for that mode), find the inner mode and
1386
+ // state at the position that the state refers to.
1387
+ function innerMode(mode, state) {
1388
+ var info;
1389
+ while (mode.innerMode) {
1390
+ info = mode.innerMode(state);
1391
+ if (!info || info.mode == mode) { break }
1392
+ state = info.state;
1393
+ mode = info.mode;
1394
  }
1395
+ return info || {mode: mode, state: state}
1396
+ }
 
 
 
 
 
 
 
 
1397
 
1398
+ function startState(mode, a1, a2) {
1399
+ return mode.startState ? mode.startState(a1, a2) : true
1400
+ }
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1401
 
1402
+ // STRING STREAM
 
1403
 
1404
+ // Fed to the mode parsers, provides helper functions to make
1405
+ // parsers more succinct.
1406
+
1407
+ var StringStream = function(string, tabSize, lineOracle) {
1408
+ this.pos = this.start = 0;
1409
+ this.string = string;
1410
+ this.tabSize = tabSize || 8;
1411
+ this.lastColumnPos = this.lastColumnValue = 0;
1412
+ this.lineStart = 0;
1413
+ this.lineOracle = lineOracle;
1414
+ };
1415
+
1416
+ StringStream.prototype.eol = function () {return this.pos >= this.string.length};
1417
+ StringStream.prototype.sol = function () {return this.pos == this.lineStart};
1418
+ StringStream.prototype.peek = function () {return this.string.charAt(this.pos) || undefined};
1419
+ StringStream.prototype.next = function () {
1420
+ if (this.pos < this.string.length)
1421
+ { return this.string.charAt(this.pos++) }
1422
+ };
1423
+ StringStream.prototype.eat = function (match) {
1424
+ var ch = this.string.charAt(this.pos);
1425
+ var ok;
1426
+ if (typeof match == "string") { ok = ch == match; }
1427
+ else { ok = ch && (match.test ? match.test(ch) : match(ch)); }
1428
+ if (ok) {++this.pos; return ch}
1429
+ };
1430
+ StringStream.prototype.eatWhile = function (match) {
1431
+ var start = this.pos;
1432
+ while (this.eat(match)){}
1433
+ return this.pos > start
1434
+ };
1435
+ StringStream.prototype.eatSpace = function () {
1436
+ var this$1 = this;
1437
+
1438
+ var start = this.pos;
1439
+ while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) { ++this$1.pos; }
1440
+ return this.pos > start
1441
+ };
1442
+ StringStream.prototype.skipToEnd = function () {this.pos = this.string.length;};
1443
+ StringStream.prototype.skipTo = function (ch) {
1444
+ var found = this.string.indexOf(ch, this.pos);
1445
+ if (found > -1) {this.pos = found; return true}
1446
+ };
1447
+ StringStream.prototype.backUp = function (n) {this.pos -= n;};
1448
+ StringStream.prototype.column = function () {
1449
+ if (this.lastColumnPos < this.start) {
1450
+ this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);
1451
+ this.lastColumnPos = this.start;
1452
+ }
1453
+ return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
1454
+ };
1455
+ StringStream.prototype.indentation = function () {
1456
+ return countColumn(this.string, null, this.tabSize) -
1457
+ (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
1458
+ };
1459
+ StringStream.prototype.match = function (pattern, consume, caseInsensitive) {
1460
+ if (typeof pattern == "string") {
1461
+ var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; };
1462
+ var substr = this.string.substr(this.pos, pattern.length);
1463
+ if (cased(substr) == cased(pattern)) {
1464
+ if (consume !== false) { this.pos += pattern.length; }
1465
+ return true
1466
+ }
1467
+ } else {
1468
+ var match = this.string.slice(this.pos).match(pattern);
1469
+ if (match && match.index > 0) { return null }
1470
+ if (match && consume !== false) { this.pos += match[0].length; }
1471
+ return match
1472
+ }
1473
+ };
1474
+ StringStream.prototype.current = function (){return this.string.slice(this.start, this.pos)};
1475
+ StringStream.prototype.hideFirstChars = function (n, inner) {
1476
+ this.lineStart += n;
1477
+ try { return inner() }
1478
+ finally { this.lineStart -= n; }
1479
+ };
1480
+ StringStream.prototype.lookAhead = function (n) {
1481
+ var oracle = this.lineOracle;
1482
+ return oracle && oracle.lookAhead(n)
1483
+ };
1484
+ StringStream.prototype.baseToken = function () {
1485
+ var oracle = this.lineOracle;
1486
+ return oracle && oracle.baseToken(this.pos)
1487
+ };
1488
+
1489
+ var SavedContext = function(state, lookAhead) {
1490
+ this.state = state;
1491
+ this.lookAhead = lookAhead;
1492
+ };
1493
+
1494
+ var Context = function(doc, state, line, lookAhead) {
1495
+ this.state = state;
1496
+ this.doc = doc;
1497
+ this.line = line;
1498
+ this.maxLookAhead = lookAhead || 0;
1499
+ this.baseTokens = null;
1500
+ this.baseTokenPos = 1;
1501
+ };
1502
+
1503
+ Context.prototype.lookAhead = function (n) {
1504
+ var line = this.doc.getLine(this.line + n);
1505
+ if (line != null && n > this.maxLookAhead) { this.maxLookAhead = n; }
1506
+ return line
1507
+ };
1508
+
1509
+ Context.prototype.baseToken = function (n) {
1510
+ var this$1 = this;
1511
+
1512
+ if (!this.baseTokens) { return null }
1513
+ while (this.baseTokens[this.baseTokenPos] <= n)
1514
+ { this$1.baseTokenPos += 2; }
1515
+ var type = this.baseTokens[this.baseTokenPos + 1];
1516
+ return {type: type && type.replace(/( |^)overlay .*/, ""),
1517
+ size: this.baseTokens[this.baseTokenPos] - n}
1518
+ };
1519
+
1520
+ Context.prototype.nextLine = function () {
1521
+ this.line++;
1522
+ if (this.maxLookAhead > 0) { this.maxLookAhead--; }
1523
+ };
1524
+
1525
+ Context.fromSaved = function (doc, saved, line) {
1526
+ if (saved instanceof SavedContext)
1527
+ { return new Context(doc, copyState(doc.mode, saved.state), line, saved.lookAhead) }
1528
+ else
1529
+ { return new Context(doc, copyState(doc.mode, saved), line) }
1530
+ };
1531
+
1532
+ Context.prototype.save = function (copy) {
1533
+ var state = copy !== false ? copyState(this.doc.mode, this.state) : this.state;
1534
+ return this.maxLookAhead > 0 ? new SavedContext(state, this.maxLookAhead) : state
1535
+ };
1536
+
1537
+
1538
+ // Compute a style array (an array starting with a mode generation
1539
+ // -- for invalidation -- followed by pairs of end positions and
1540
+ // style strings), which is used to highlight the tokens on the
1541
+ // line.
1542
+ function highlightLine(cm, line, context, forceToEnd) {
1543
+ // A styles array always starts with a number identifying the
1544
+ // mode/overlays that it is based on (for easy invalidation).
1545
+ var st = [cm.state.modeGen], lineClasses = {};
1546
+ // Compute the base array of styles
1547
+ runMode(cm, line.text, cm.doc.mode, context, function (end, style) { return st.push(end, style); },
1548
+ lineClasses, forceToEnd);
1549
+ var state = context.state;
1550
+
1551
+ // Run overlays, adjust style array.
1552
+ var loop = function ( o ) {
1553
+ context.baseTokens = st;
1554
+ var overlay = cm.state.overlays[o], i = 1, at = 0;
1555
+ context.state = true;
1556
+ runMode(cm, line.text, overlay.mode, context, function (end, style) {
1557
+ var start = i;
1558
+ // Ensure there's a token end at the current position, and that i points at it
1559
+ while (at < end) {
1560
+ var i_end = st[i];
1561
+ if (i_end > end)
1562
+ { st.splice(i, 1, end, st[i+1], i_end); }
1563
+ i += 2;
1564
+ at = Math.min(end, i_end);
1565
+ }
1566
+ if (!style) { return }
1567
+ if (overlay.opaque) {
1568
+ st.splice(start, i - start, end, "overlay " + style);
1569
+ i = start + 2;
1570
+ } else {
1571
+ for (; start < i; start += 2) {
1572
+ var cur = st[start+1];
1573
+ st[start+1] = (cur ? cur + " " : "") + "overlay " + style;
1574
+ }
1575
+ }
1576
+ }, lineClasses);
1577
+ context.state = state;
1578
+ context.baseTokens = null;
1579
+ context.baseTokenPos = 1;
1580
+ };
1581
+
1582
+ for (var o = 0; o < cm.state.overlays.length; ++o) loop( o );
1583
+
1584
+ return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null}
1585
+ }
1586
+
1587
+ function getLineStyles(cm, line, updateFrontier) {
1588
+ if (!line.styles || line.styles[0] != cm.state.modeGen) {
1589
+ var context = getContextBefore(cm, lineNo(line));
1590
+ var resetState = line.text.length > cm.options.maxHighlightLength && copyState(cm.doc.mode, context.state);
1591
+ var result = highlightLine(cm, line, context);
1592
+ if (resetState) { context.state = resetState; }
1593
+ line.stateAfter = context.save(!resetState);
1594
+ line.styles = result.styles;
1595
+ if (result.classes) { line.styleClasses = result.classes; }
1596
+ else if (line.styleClasses) { line.styleClasses = null; }
1597
+ if (updateFrontier === cm.doc.highlightFrontier)
1598
+ { cm.doc.modeFrontier = Math.max(cm.doc.modeFrontier, ++cm.doc.highlightFrontier); }
1599
+ }
1600
+ return line.styles
1601
+ }
1602
+
1603
+ function getContextBefore(cm, n, precise) {
1604
+ var doc = cm.doc, display = cm.display;
1605
+ if (!doc.mode.startState) { return new Context(doc, true, n) }
1606
+ var start = findStartLine(cm, n, precise);
1607
+ var saved = start > doc.first && getLine(doc, start - 1).stateAfter;
1608
+ var context = saved ? Context.fromSaved(doc, saved, start) : new Context(doc, startState(doc.mode), start);
1609
+
1610
+ doc.iter(start, n, function (line) {
1611
+ processLine(cm, line.text, context);
1612
+ var pos = context.line;
1613
+ line.stateAfter = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo ? context.save() : null;
1614
+ context.nextLine();
1615
+ });
1616
+ if (precise) { doc.modeFrontier = context.line; }
1617
+ return context
1618
+ }
1619
+
1620
+ // Lightweight form of highlight -- proceed over this line and
1621
+ // update state, but don't save a style array. Used for lines that
1622
+ // aren't currently visible.
1623
+ function processLine(cm, text, context, startAt) {
1624
+ var mode = cm.doc.mode;
1625
+ var stream = new StringStream(text, cm.options.tabSize, context);
1626
+ stream.start = stream.pos = startAt || 0;
1627
+ if (text == "") { callBlankLine(mode, context.state); }
1628
+ while (!stream.eol()) {
1629
+ readToken(mode, stream, context.state);
1630
+ stream.start = stream.pos;
1631
+ }
1632
+ }
1633
+
1634
+ function callBlankLine(mode, state) {
1635
+ if (mode.blankLine) { return mode.blankLine(state) }
1636
+ if (!mode.innerMode) { return }
1637
+ var inner = innerMode(mode, state);
1638
+ if (inner.mode.blankLine) { return inner.mode.blankLine(inner.state) }
1639
+ }
1640
+
1641
+ function readToken(mode, stream, state, inner) {
1642
+ for (var i = 0; i < 10; i++) {
1643
+ if (inner) { inner[0] = innerMode(mode, state).mode; }
1644
+ var style = mode.token(stream, state);
1645
+ if (stream.pos > stream.start) { return style }
1646
+ }
1647
+ throw new Error("Mode " + mode.name + " failed to advance stream.")
1648
+ }
1649
+
1650
+ var Token = function(stream, type, state) {
1651
+ this.start = stream.start; this.end = stream.pos;
1652
+ this.string = stream.current();
1653
+ this.type = type || null;
1654
+ this.state = state;
1655
+ };
1656
+
1657
+ // Utility for getTokenAt and getLineTokens
1658
+ function takeToken(cm, pos, precise, asArray) {
1659
+ var doc = cm.doc, mode = doc.mode, style;
1660
+ pos = clipPos(doc, pos);
1661
+ var line = getLine(doc, pos.line), context = getContextBefore(cm, pos.line, precise);
1662
+ var stream = new StringStream(line.text, cm.options.tabSize, context), tokens;
1663
+ if (asArray) { tokens = []; }
1664
+ while ((asArray || stream.pos < pos.ch) && !stream.eol()) {
1665
+ stream.start = stream.pos;
1666
+ style = readToken(mode, stream, context.state);
1667
+ if (asArray) { tokens.push(new Token(stream, style, copyState(doc.mode, context.state))); }
1668
+ }
1669
+ return asArray ? tokens : new Token(stream, style, context.state)
1670
+ }
1671
+
1672
+ function extractLineClasses(type, output) {
1673
+ if (type) { for (;;) {
1674
+ var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/);
1675
+ if (!lineClass) { break }
1676
+ type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length);
1677
+ var prop = lineClass[1] ? "bgClass" : "textClass";
1678
+ if (output[prop] == null)
1679
+ { output[prop] = lineClass[2]; }
1680
+ else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(output[prop]))
1681
+ { output[prop] += " " + lineClass[2]; }
1682
  } }
1683
+ return type
1684
+ }
1685
+
1686
+ // Run the given mode's parser over a line, calling f for each token.
1687
+ function runMode(cm, text, mode, context, f, lineClasses, forceToEnd) {
1688
+ var flattenSpans = mode.flattenSpans;
1689
+ if (flattenSpans == null) { flattenSpans = cm.options.flattenSpans; }
1690
+ var curStart = 0, curStyle = null;
1691
+ var stream = new StringStream(text, cm.options.tabSize, context), style;
1692
+ var inner = cm.options.addModeClass && [null];
1693
+ if (text == "") { extractLineClasses(callBlankLine(mode, context.state), lineClasses); }
1694
+ while (!stream.eol()) {
1695
+ if (stream.pos > cm.options.maxHighlightLength) {
1696
+ flattenSpans = false;
1697
+ if (forceToEnd) { processLine(cm, text, context, stream.pos); }
1698
+ stream.pos = text.length;
1699
+ style = null;
1700
+ } else {
1701
+ style = extractLineClasses(readToken(mode, stream, context.state, inner), lineClasses);
1702
+ }
1703
+ if (inner) {
1704
+ var mName = inner[0].name;
1705
+ if (mName) { style = "m-" + (style ? mName + " " + style : mName); }
1706
+ }
1707
+ if (!flattenSpans || curStyle != style) {
1708
+ while (curStart < stream.start) {
1709
+ curStart = Math.min(stream.start, curStart + 5000);
1710
+ f(curStart, curStyle);
1711
+ }
1712
+ curStyle = style;
1713
+ }
1714
+ stream.start = stream.pos;
1715
+ }
1716
+ while (curStart < stream.pos) {
1717
+ // Webkit seems to refuse to render text nodes longer than 57444
1718
+ // characters, and returns inaccurate measurements in nodes
1719
+ // starting around 5000 chars.
1720
+ var pos = Math.min(stream.pos, curStart + 5000);
1721
+ f(pos, curStyle);
1722
+ curStart = pos;
1723
+ }
1724
+ }
1725
+
1726
+ // Finds the line to start with when starting a parse. Tries to
1727
+ // find a line with a stateAfter, so that it can start with a
1728
+ // valid state. If that fails, it returns the line with the
1729
+ // smallest indentation, which tends to need the least context to
1730
+ // parse correctly.
1731
+ function findStartLine(cm, n, precise) {
1732
+ var minindent, minline, doc = cm.doc;
1733
+ var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100);
1734
+ for (var search = n; search > lim; --search) {
1735
+ if (search <= doc.first) { return doc.first }
1736
+ var line = getLine(doc, search - 1), after = line.stateAfter;
1737
+ if (after && (!precise || search + (after instanceof SavedContext ? after.lookAhead : 0) <= doc.modeFrontier))
1738
+ { return search }
1739
+ var indented = countColumn(line.text, null, cm.options.tabSize);
1740
+ if (minline == null || minindent > indented) {
1741
+ minline = search - 1;
1742
+ minindent = indented;
1743
+ }
1744
+ }
1745
+ return minline
1746
+ }
1747
+
1748
+ function retreatFrontier(doc, n) {
1749
+ doc.modeFrontier = Math.min(doc.modeFrontier, n);
1750
+ if (doc.highlightFrontier < n - 10) { return }
1751
+ var start = doc.first;
1752
+ for (var line = n - 1; line > start; line--) {
1753
+ var saved = getLine(doc, line).stateAfter;
1754
+ // change is on 3
1755
+ // state on line 1 looked ahead 2 -- so saw 3
1756
+ // test 1 + 2 < 3 should cover this
1757
+ if (saved && (!(saved instanceof SavedContext) || line + saved.lookAhead < n)) {
1758
+ start = line + 1;
1759
+ break
1760
+ }
1761
+ }
1762
+ doc.highlightFrontier = Math.min(doc.highlightFrontier, start);
1763
+ }
1764
+
1765
+ // LINE DATA STRUCTURE
1766
+
1767
+ // Line objects. These hold state related to a line, including
1768
+ // highlighting info (the styles array).
1769
+ var Line = function(text, markedSpans, estimateHeight) {
1770
+ this.text = text;
1771
+ attachMarkedSpans(this, markedSpans);
1772
+ this.height = estimateHeight ? estimateHeight(this) : 1;
1773
+ };
1774
+
1775
+ Line.prototype.lineNo = function () { return lineNo(this) };
1776
+ eventMixin(Line);
1777
+
1778
+ // Change the content (text, markers) of a line. Automatically
1779
+ // invalidates cached information and tries to re-estimate the
1780
+ // line's height.
1781
+ function updateLine(line, text, markedSpans, estimateHeight) {
1782
+ line.text = text;
1783
+ if (line.stateAfter) { line.stateAfter = null; }
1784
+ if (line.styles) { line.styles = null; }
1785
+ if (line.order != null) { line.order = null; }
1786
+ detachMarkedSpans(line);
1787
+ attachMarkedSpans(line, markedSpans);
1788
+ var estHeight = estimateHeight ? estimateHeight(line) : 1;
1789
+ if (estHeight != line.height) { updateLineHeight(line, estHeight); }
1790
+ }
1791
+
1792
+ // Detach a line from the document tree and its markers.
1793
+ function cleanUpLine(line) {
1794
+ line.parent = null;
1795
+ detachMarkedSpans(line);
1796
+ }
1797
+
1798
+ // Convert a style as returned by a mode (either null, or a string
1799
+ // containing one or more styles) to a CSS style. This is cached,
1800
+ // and also looks for line-wide styles.
1801
+ var styleToClassCache = {}, styleToClassCacheWithMode = {};
1802
+ function interpretTokenStyle(style, options) {
1803
+ if (!style || /^\s*$/.test(style)) { return null }
1804
+ var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache;
1805
+ return cache[style] ||
1806
+ (cache[style] = style.replace(/\S+/g, "cm-$&"))
1807
+ }
1808
+
1809
+ // Render the DOM representation of the text of a line. Also builds
1810
+ // up a 'line map', which points at the DOM nodes that represent
1811
+ // specific stretches of text, and is used by the measuring code.
1812
+ // The returned object contains the DOM node, this map, and
1813
+ // information about line-wide styles that were set by the mode.
1814
+ function buildLineContent(cm, lineView) {
1815
+ // The padding-right forces the element to have a 'border', which
1816
+ // is needed on Webkit to be able to get line-level bounding
1817
+ // rectangles for it (in measureChar).
1818
+ var content = eltP("span", null, null, webkit ? "padding-right: .1px" : null);
1819
+ var builder = {pre: eltP("pre", [content], "CodeMirror-line"), content: content,
1820
+ col: 0, pos: 0, cm: cm,
1821
+ trailingSpace: false,
1822
+ splitSpaces: cm.getOption("lineWrapping")};
1823
+ lineView.measure = {};
1824
+
1825
+ // Iterate over the logical lines that make up this visual line.
1826
+ for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {
1827
+ var line = i ? lineView.rest[i - 1] : lineView.line, order = (void 0);
1828
+ builder.pos = 0;
1829
+ builder.addToken = buildToken;
1830
+ // Optionally wire in some hacks into the token-rendering
1831
+ // algorithm, to deal with browser quirks.
1832
+ if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line, cm.doc.direction)))
1833
+ { builder.addToken = buildTokenBadBidi(builder.addToken, order); }
1834
+ builder.map = [];
1835
+ var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line);
1836
+ insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate));
1837
+ if (line.styleClasses) {
1838
+ if (line.styleClasses.bgClass)
1839
+ { builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || ""); }
1840
+ if (line.styleClasses.textClass)
1841
+ { builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || ""); }
1842
+ }
1843
+
1844
+ // Ensure at least a single node is present, for measuring.
1845
+ if (builder.map.length == 0)
1846
+ { builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))); }
1847
+
1848
+ // Store the map and a cache object for the current logical line
1849
+ if (i == 0) {
1850
+ lineView.measure.map = builder.map;
1851
+ lineView.measure.cache = {};
1852
+ } else {
1853
+ (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map)
1854
+ ;(lineView.measure.caches || (lineView.measure.caches = [])).push({});
1855
+ }
1856
+ }
1857
+
1858
+ // See issue #2901
1859
+ if (webkit) {
1860
+ var last = builder.content.lastChild;
1861
+ if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab")))
1862
+ { builder.content.className = "cm-tab-wrap-hack"; }
1863
+ }
1864
+
1865
+ signal(cm, "renderLine", cm, lineView.line, builder.pre);
1866
+ if (builder.pre.className)
1867
+ { builder.textClass = joinClasses(builder.pre.className, builder.textClass || ""); }
1868
+
1869
+ return builder
1870
+ }
1871
+
1872
+ function defaultSpecialCharPlaceholder(ch) {
1873
+ var token = elt("span", "\u2022", "cm-invalidchar");
1874
+ token.title = "\\u" + ch.charCodeAt(0).toString(16);
1875
+ token.setAttribute("aria-label", token.title);
1876
+ return token
1877
+ }
1878
+
1879
+ // Build up the DOM representation for a single token, and add it to
1880
+ // the line map. Takes care to render special characters separately.
1881
+ function buildToken(builder, text, style, startStyle, endStyle, css, attributes) {
1882
+ if (!text) { return }
1883
+ var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text;
1884
+ var special = builder.cm.state.specialChars, mustWrap = false;
1885
+ var content;
1886
+ if (!special.test(text)) {
1887
+ builder.col += text.length;
1888
+ content = document.createTextNode(displayText);
1889
+ builder.map.push(builder.pos, builder.pos + text.length, content);
1890
+ if (ie && ie_version < 9) { mustWrap = true; }
1891
+ builder.pos += text.length;
1892
+ } else {
1893
+ content = document.createDocumentFragment();
1894
+ var pos = 0;
1895
+ while (true) {
1896
+ special.lastIndex = pos;
1897
+ var m = special.exec(text);
1898
+ var skipped = m ? m.index - pos : text.length - pos;
1899
+ if (skipped) {
1900
+ var txt = document.createTextNode(displayText.slice(pos, pos + skipped));
1901
+ if (ie && ie_version < 9) { content.appendChild(elt("span", [txt])); }
1902
+ else { content.appendChild(txt); }
1903
+ builder.map.push(builder.pos, builder.pos + skipped, txt);
1904
+ builder.col += skipped;
1905
+ builder.pos += skipped;
1906
+ }
1907
+ if (!m) { break }
1908
+ pos += skipped + 1;
1909
+ var txt$1 = (void 0);
1910
+ if (m[0] == "\t") {
1911
+ var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize;
1912
+ txt$1 = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"));
1913
+ txt$1.setAttribute("role", "presentation");
1914
+ txt$1.setAttribute("cm-text", "\t");
1915
+ builder.col += tabWidth;
1916
+ } else if (m[0] == "\r" || m[0] == "\n") {
1917
+ txt$1 = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar"));
1918
+ txt$1.setAttribute("cm-text", m[0]);
1919
+ builder.col += 1;
1920
+ } else {
1921
+ txt$1 = builder.cm.options.specialCharPlaceholder(m[0]);
1922
+ txt$1.setAttribute("cm-text", m[0]);
1923
+ if (ie && ie_version < 9) { content.appendChild(elt("span", [txt$1])); }
1924
+ else { content.appendChild(txt$1); }
1925
+ builder.col += 1;
1926
+ }
1927
+ builder.map.push(builder.pos, builder.pos + 1, txt$1);
1928
+ builder.pos++;
1929
+ }
1930
+ }
1931
+ builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32;
1932
+ if (style || startStyle || endStyle || mustWrap || css) {
1933
+ var fullStyle = style || "";
1934
+ if (startStyle) { fullStyle += startStyle; }
1935
+ if (endStyle) { fullStyle += endStyle; }
1936
+ var token = elt("span", [content], fullStyle, css);
1937
+ if (attributes) {
1938
+ for (var attr in attributes) { if (attributes.hasOwnProperty(attr) && attr != "style" && attr != "class")
1939
+ { token.setAttribute(attr, attributes[attr]); } }
1940
+ }
1941
+ return builder.content.appendChild(token)
1942
+ }
1943
+ builder.content.appendChild(content);
1944
+ }
1945
+
1946
+ // Change some spaces to NBSP to prevent the browser from collapsing
1947
+ // trailing spaces at the end of a line when rendering text (issue #1362).
1948
+ function splitSpaces(text, trailingBefore) {
1949
+ if (text.length > 1 && !/ /.test(text)) { return text }
1950
+ var spaceBefore = trailingBefore, result = "";
1951
+ for (var i = 0; i < text.length; i++) {
1952
+ var ch = text.charAt(i);
1953
+ if (ch == " " && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32))
1954
+ { ch = "\u00a0"; }
1955
+ result += ch;
1956
+ spaceBefore = ch == " ";
1957
+ }
1958
+ return result
1959
+ }
1960
+
1961
+ // Work around nonsense dimensions being reported for stretches of
1962
+ // right-to-left text.
1963
+ function buildTokenBadBidi(inner, order) {
1964
+ return function (builder, text, style, startStyle, endStyle, css, attributes) {
1965
+ style = style ? style + " cm-force-border" : "cm-force-border";
1966
+ var start = builder.pos, end = start + text.length;
1967
+ for (;;) {
1968
+ // Find the part that overlaps with the start of this text
1969
+ var part = (void 0);
1970
+ for (var i = 0; i < order.length; i++) {
1971
+ part = order[i];
1972
+ if (part.to > start && part.from <= start) { break }
1973
+ }
1974
+ if (part.to >= end) { return inner(builder, text, style, startStyle, endStyle, css, attributes) }
1975
+ inner(builder, text.slice(0, part.to - start), style, startStyle, null, css, attributes);
1976
+ startStyle = null;
1977
+ text = text.slice(part.to - start);
1978
+ start = part.to;
1979
+ }
1980
+ }
1981
+ }
1982
+
1983
+ function buildCollapsedSpan(builder, size, marker, ignoreWidget) {
1984
+ var widget = !ignoreWidget && marker.widgetNode;
1985
+ if (widget) { builder.map.push(builder.pos, builder.pos + size, widget); }
1986
+ if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {
1987
+ if (!widget)
1988
+ { widget = builder.content.appendChild(document.createElement("span")); }
1989
+ widget.setAttribute("cm-marker", marker.id);
1990
+ }
1991
+ if (widget) {
1992
+ builder.cm.display.input.setUneditable(widget);
1993
+ builder.content.appendChild(widget);
1994
+ }
1995
+ builder.pos += size;
1996
+ builder.trailingSpace = false;
1997
+ }
1998
+
1999
+ // Outputs a number of spans to make up a line, taking highlighting
2000
+ // and marked text into account.
2001
+ function insertLineContent(line, builder, styles) {
2002
+ var spans = line.markedSpans, allText = line.text, at = 0;
2003
+ if (!spans) {
2004
+ for (var i$1 = 1; i$1 < styles.length; i$1+=2)
2005
+ { builder.addToken(builder, allText.slice(at, at = styles[i$1]), interpretTokenStyle(styles[i$1+1], builder.cm.options)); }
2006
+ return
2007
+ }
2008
+
2009
+ var len = allText.length, pos = 0, i = 1, text = "", style, css;
2010
+ var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, collapsed, attributes;
2011
+ for (;;) {
2012
+ if (nextChange == pos) { // Update current marker set
2013
+ spanStyle = spanEndStyle = spanStartStyle = css = "";
2014
+ attributes = null;
2015
+ collapsed = null; nextChange = Infinity;
2016
+ var foundBookmarks = [], endStyles = (void 0);
2017
+ for (var j = 0; j < spans.length; ++j) {
2018
+ var sp = spans[j], m = sp.marker;
2019
+ if (m.type == "bookmark" && sp.from == pos && m.widgetNode) {
2020
+ foundBookmarks.push(m);
2021
+ } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {
2022
+ if (sp.to != null && sp.to != pos && nextChange > sp.to) {
2023
+ nextChange = sp.to;
2024
+ spanEndStyle = "";
2025
+ }
2026
+ if (m.className) { spanStyle += " " + m.className; }
2027
+ if (m.css) { css = (css ? css + ";" : "") + m.css; }
2028
+ if (m.startStyle && sp.from == pos) { spanStartStyle += " " + m.startStyle; }
2029
+ if (m.endStyle && sp.to == nextChange) { (endStyles || (endStyles = [])).push(m.endStyle, sp.to); }
2030
+ // support for the old title property
2031
+ // https://github.com/codemirror/CodeMirror/pull/5673
2032
+ if (m.title) { (attributes || (attributes = {})).title = m.title; }
2033
+ if (m.attributes) {
2034
+ for (var attr in m.attributes)
2035
+ { (attributes || (attributes = {}))[attr] = m.attributes[attr]; }
2036
+ }
2037
+ if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))
2038
+ { collapsed = sp; }
2039
+ } else if (sp.from > pos && nextChange > sp.from) {
2040
+ nextChange = sp.from;
2041
+ }
2042
+ }
2043
+ if (endStyles) { for (var j$1 = 0; j$1 < endStyles.length; j$1 += 2)
2044
+ { if (endStyles[j$1 + 1] == nextChange) { spanEndStyle += " " + endStyles[j$1]; } } }
2045
+
2046
+ if (!collapsed || collapsed.from == pos) { for (var j$2 = 0; j$2 < foundBookmarks.length; ++j$2)
2047
+ { buildCollapsedSpan(builder, 0, foundBookmarks[j$2]); } }
2048
+ if (collapsed && (collapsed.from || 0) == pos) {
2049
+ buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,
2050
+ collapsed.marker, collapsed.from == null);
2051
+ if (collapsed.to == null) { return }
2052
+ if (collapsed.to == pos) { collapsed = false; }
2053
+ }
2054
+ }
2055
+ if (pos >= len) { break }
2056
+
2057
+ var upto = Math.min(len, nextChange);
2058
+ while (true) {
2059
+ if (text) {
2060
+ var end = pos + text.length;
2061
+ if (!collapsed) {
2062
+ var tokenText = end > upto ? text.slice(0, upto - pos) : text;
2063
+ builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,
2064
+ spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", css, attributes);
2065
+ }
2066
+ if (end >= upto) {text = text.slice(upto - pos); pos = upto; break}
2067
+ pos = end;
2068
+ spanStartStyle = "";
2069
+ }
2070
+ text = allText.slice(at, at = styles[i++]);
2071
+ style = interpretTokenStyle(styles[i++], builder.cm.options);
2072
+ }
2073
+ }
2074
+ }
2075
+
2076
+
2077
+ // These objects are used to represent the visible (currently drawn)
2078
+ // part of the document. A LineView may correspond to multiple
2079
+ // logical lines, if those are connected by collapsed ranges.
2080
+ function LineView(doc, line, lineN) {
2081
+ // The starting line
2082
+ this.line = line;
2083
+ // Continuing lines, if any
2084
+ this.rest = visualLineContinued(line);
2085
+ // Number of logical lines in this visual line
2086
+ this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1;
2087
+ this.node = this.text = null;
2088
+ this.hidden = lineIsHidden(doc, line);
2089
+ }
2090
+
2091
+ // Create a range of LineView objects for the given lines.
2092
+ function buildViewArray(cm, from, to) {
2093
+ var array = [], nextPos;
2094
+ for (var pos = from; pos < to; pos = nextPos) {
2095
+ var view = new LineView(cm.doc, getLine(cm.doc, pos), pos);
2096
+ nextPos = pos + view.size;
2097
+ array.push(view);
2098
+ }
2099
+ return array
2100
+ }
2101
+
2102
+ var operationGroup = null;
2103
+
2104
+ function pushOperation(op) {
2105
+ if (operationGroup) {
2106
+ operationGroup.ops.push(op);
2107
+ } else {
2108
+ op.ownsGroup = operationGroup = {
2109
+ ops: [op],
2110
+ delayedCallbacks: []
2111
+ };
2112
+ }
2113
+ }
2114
+
2115
+ function fireCallbacksForOps(group) {
2116
+ // Calls delayed callbacks and cursorActivity handlers until no
2117
+ // new ones appear
2118
+ var callbacks = group.delayedCallbacks, i = 0;
2119
+ do {
2120
+ for (; i < callbacks.length; i++)
2121
+ { callbacks[i].call(null); }
2122
+ for (var j = 0; j < group.ops.length; j++) {
2123
+ var op = group.ops[j];
2124
+ if (op.cursorActivityHandlers)
2125
+ { while (op.cursorActivityCalled < op.cursorActivityHandlers.length)
2126
+ { op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm); } }
2127
+ }
2128
+ } while (i < callbacks.length)
2129
+ }
2130
+
2131
+ function finishOperation(op, endCb) {
2132
+ var group = op.ownsGroup;
2133
+ if (!group) { return }
2134
+
2135
+ try { fireCallbacksForOps(group); }
2136
+ finally {
2137
+ operationGroup = null;
2138
+ endCb(group);
2139
+ }
2140
+ }
2141
+
2142
+ var orphanDelayedCallbacks = null;
2143
+
2144
+ // Often, we want to signal events at a point where we are in the
2145
+ // middle of some work, but don't want the handler to start calling
2146
+ // other methods on the editor, which might be in an inconsistent
2147
+ // state or simply not expect any other events to happen.
2148
+ // signalLater looks whether there are any handlers, and schedules
2149
+ // them to be executed when the last operation ends, or, if no
2150
+ // operation is active, when a timeout fires.
2151
+ function signalLater(emitter, type /*, values...*/) {
2152
+ var arr = getHandlers(emitter, type);
2153
+ if (!arr.length) { return }
2154
+ var args = Array.prototype.slice.call(arguments, 2), list;
2155
+ if (operationGroup) {
2156
+ list = operationGroup.delayedCallbacks;
2157
+ } else if (orphanDelayedCallbacks) {
2158
+ list = orphanDelayedCallbacks;
2159
+ } else {
2160
+ list = orphanDelayedCallbacks = [];
2161
+ setTimeout(fireOrphanDelayed, 0);
2162
+ }
2163
+ var loop = function ( i ) {
2164
+ list.push(function () { return arr[i].apply(null, args); });
2165
+ };
2166
+
2167
+ for (var i = 0; i < arr.length; ++i)
2168
+ loop( i );
2169
+ }
2170
+
2171
+ function fireOrphanDelayed() {
2172
+ var delayed = orphanDelayedCallbacks;
2173
+ orphanDelayedCallbacks = null;
2174
+ for (var i = 0; i < delayed.length; ++i) { delayed[i](); }
2175
+ }
2176
+
2177
+ // When an aspect of a line changes, a string is added to
2178
+ // lineView.changes. This updates the relevant part of the line's
2179
+ // DOM structure.
2180
+ function updateLineForChanges(cm, lineView, lineN, dims) {
2181
+ for (var j = 0; j < lineView.changes.length; j++) {
2182
+ var type = lineView.changes[j];
2183
+ if (type == "text") { updateLineText(cm, lineView); }
2184
+ else if (type == "gutter") { updateLineGutter(cm, lineView, lineN, dims); }
2185
+ else if (type == "class") { updateLineClasses(cm, lineView); }
2186
+ else if (type == "widget") { updateLineWidgets(cm, lineView, dims); }
2187
+ }
2188
+ lineView.changes = null;
2189
+ }
2190
+
2191
+ // Lines with gutter elements, widgets or a background class need to
2192
+ // be wrapped, and have the extra elements added to the wrapper div
2193
+ function ensureLineWrapped(lineView) {
2194
+ if (lineView.node == lineView.text) {
2195
+ lineView.node = elt("div", null, null, "position: relative");
2196
+ if (lineView.text.parentNode)
2197
+ { lineView.text.parentNode.replaceChild(lineView.node, lineView.text); }
2198
+ lineView.node.appendChild(lineView.text);
2199
+ if (ie && ie_version < 8) { lineView.node.style.zIndex = 2; }
2200
+ }
2201
+ return lineView.node
2202
+ }
2203
+
2204
+ function updateLineBackground(cm, lineView) {
2205
+ var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass;
2206
+ if (cls) { cls += " CodeMirror-linebackground"; }
2207
+ if (lineView.background) {
2208
+ if (cls) { lineView.background.className = cls; }
2209
+ else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; }
2210
+ } else if (cls) {
2211
+ var wrap = ensureLineWrapped(lineView);
2212
+ lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild);
2213
+ cm.display.input.setUneditable(lineView.background);
2214
+ }
2215
+ }
2216
+
2217
+ // Wrapper around buildLineContent which will reuse the structure
2218
+ // in display.externalMeasured when possible.
2219
+ function getLineContent(cm, lineView) {
2220
+ var ext = cm.display.externalMeasured;
2221
+ if (ext && ext.line == lineView.line) {
2222
+ cm.display.externalMeasured = null;
2223
+ lineView.measure = ext.measure;
2224
+ return ext.built
2225
+ }
2226
+ return buildLineContent(cm, lineView)
2227
+ }
2228
+
2229
+ // Redraw the line's text. Interacts with the background and text
2230
+ // classes because the mode may output tokens that influence these
2231
+ // classes.
2232
+ function updateLineText(cm, lineView) {
2233
+ var cls = lineView.text.className;
2234
+ var built = getLineContent(cm, lineView);
2235
+ if (lineView.text == lineView.node) { lineView.node = built.pre; }
2236
+ lineView.text.parentNode.replaceChild(built.pre, lineView.text);
2237
+ lineView.text = built.pre;
2238
+ if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {
2239
+ lineView.bgClass = built.bgClass;
2240
+ lineView.textClass = built.textClass;
2241
+ updateLineClasses(cm, lineView);
2242
+ } else if (cls) {
2243
+ lineView.text.className = cls;
2244
+ }
2245
+ }
2246
+
2247
+ function updateLineClasses(cm, lineView) {
2248
+ updateLineBackground(cm, lineView);
2249
+ if (lineView.line.wrapClass)
2250
+ { ensureLineWrapped(lineView).className = lineView.line.wrapClass; }
2251
+ else if (lineView.node != lineView.text)
2252
+ { lineView.node.className = ""; }
2253
+ var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass;
2254
+ lineView.text.className = textClass || "";
2255
+ }
2256
+
2257
+ function updateLineGutter(cm, lineView, lineN, dims) {
2258
+ if (lineView.gutter) {
2259
+ lineView.node.removeChild(lineView.gutter);
2260
+ lineView.gutter = null;
2261
+ }
2262
+ if (lineView.gutterBackground) {
2263
+ lineView.node.removeChild(lineView.gutterBackground);
2264
+ lineView.gutterBackground = null;
2265
+ }
2266
+ if (lineView.line.gutterClass) {
2267
+ var wrap = ensureLineWrapped(lineView);
2268
+ lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass,
2269
+ ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px; width: " + (dims.gutterTotalWidth) + "px"));
2270
+ cm.display.input.setUneditable(lineView.gutterBackground);
2271
+ wrap.insertBefore(lineView.gutterBackground, lineView.text);
2272
+ }
2273
+ var markers = lineView.line.gutterMarkers;
2274
+ if (cm.options.lineNumbers || markers) {
2275
+ var wrap$1 = ensureLineWrapped(lineView);
2276
+ var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px"));
2277
+ cm.display.input.setUneditable(gutterWrap);
2278
+ wrap$1.insertBefore(gutterWrap, lineView.text);
2279
+ if (lineView.line.gutterClass)
2280
+ { gutterWrap.className += " " + lineView.line.gutterClass; }
2281
+ if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"]))
2282
+ { lineView.lineNumber = gutterWrap.appendChild(
2283
+ elt("div", lineNumberFor(cm.options, lineN),
2284
+ "CodeMirror-linenumber CodeMirror-gutter-elt",
2285
+ ("left: " + (dims.gutterLeft["CodeMirror-linenumbers"]) + "px; width: " + (cm.display.lineNumInnerWidth) + "px"))); }
2286
+ if (markers) { for (var k = 0; k < cm.options.gutters.length; ++k) {
2287
+ var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id];
2288
+ if (found)
2289
+ { gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt",
2290
+ ("left: " + (dims.gutterLeft[id]) + "px; width: " + (dims.gutterWidth[id]) + "px"))); }
2291
  } }
2292
+ }
2293
+ }
2294
+
2295
+ function updateLineWidgets(cm, lineView, dims) {
2296
+ if (lineView.alignable) { lineView.alignable = null; }
2297
+ for (var node = lineView.node.firstChild, next = (void 0); node; node = next) {
2298
+ next = node.nextSibling;
2299
+ if (node.className == "CodeMirror-linewidget")
2300
+ { lineView.node.removeChild(node); }
2301
+ }
2302
+ insertLineWidgets(cm, lineView, dims);
2303
+ }
2304
+
2305
+ // Build a line's DOM representation from scratch
2306
+ function buildLineElement(cm, lineView, lineN, dims) {
2307
+ var built = getLineContent(cm, lineView);
2308
+ lineView.text = lineView.node = built.pre;
2309
+ if (built.bgClass) { lineView.bgClass = built.bgClass; }
2310
+ if (built.textClass) { lineView.textClass = built.textClass; }
2311
+
2312
+ updateLineClasses(cm, lineView);
2313
+ updateLineGutter(cm, lineView, lineN, dims);
2314
+ insertLineWidgets(cm, lineView, dims);
2315
+ return lineView.node
2316
+ }
2317
+
2318
+ // A lineView may contain multiple logical lines (when merged by
2319
+ // collapsed spans). The widgets for all of them need to be drawn.
2320
+ function insertLineWidgets(cm, lineView, dims) {
2321
+ insertLineWidgetsFor(cm, lineView.line, lineView, dims, true);
2322
+ if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)
2323
+ { insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false); } }
2324
+ }
2325
+
2326
+ function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {
2327
+ if (!line.widgets) { return }
2328
+ var wrap = ensureLineWrapped(lineView);
2329
+ for (var i = 0, ws = line.widgets; i < ws.length; ++i) {
2330
+ var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget");
2331
+ if (!widget.handleMouseEvents) { node.setAttribute("cm-ignore-events", "true"); }
2332
+ positionLineWidget(widget, node, lineView, dims);
2333
+ cm.display.input.setUneditable(node);
2334
+ if (allowAbove && widget.above)
2335
+ { wrap.insertBefore(node, lineView.gutter || lineView.text); }
2336
+ else
2337
+ { wrap.appendChild(node); }
2338
+ signalLater(widget, "redraw");
2339
+ }
2340
+ }
2341
+
2342
+ function positionLineWidget(widget, node, lineView, dims) {
2343
+ if (widget.noHScroll) {
2344
+ (lineView.alignable || (lineView.alignable = [])).push(node);
2345
+ var width = dims.wrapperWidth;
2346
+ node.style.left = dims.fixedPos + "px";
2347
+ if (!widget.coverGutter) {
2348
+ width -= dims.gutterTotalWidth;
2349
+ node.style.paddingLeft = dims.gutterTotalWidth + "px";
2350
+ }
2351
+ node.style.width = width + "px";
2352
+ }
2353
+ if (widget.coverGutter) {
2354
+ node.style.zIndex = 5;
2355
+ node.style.position = "relative";
2356
+ if (!widget.noHScroll) { node.style.marginLeft = -dims.gutterTotalWidth + "px"; }
2357
+ }
2358
+ }
2359
+
2360
+ function widgetHeight(widget) {
2361
+ if (widget.height != null) { return widget.height }
2362
+ var cm = widget.doc.cm;
2363
+ if (!cm) { return 0 }
2364
+ if (!contains(document.body, widget.node)) {
2365
+ var parentStyle = "position: relative;";
2366
+ if (widget.coverGutter)
2367
+ { parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;"; }
2368
+ if (widget.noHScroll)
2369
+ { parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;"; }
2370
+ removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle));
2371
+ }
2372
+ return widget.height = widget.node.parentNode.offsetHeight
2373
+ }
2374
+
2375
+ // Return true when the given mouse event happened in a widget
2376
+ function eventInWidget(display, e) {
2377
+ for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {
2378
+ if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") ||
2379
+ (n.parentNode == display.sizer && n != display.mover))
2380
+ { return true }
2381
+ }
2382
+ }
2383
+
2384
+ // POSITION MEASUREMENT
2385
+
2386
+ function paddingTop(display) {return display.lineSpace.offsetTop}
2387
+ function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight}
2388
+ function paddingH(display) {
2389
+ if (display.cachedPaddingH) { return display.cachedPaddingH }
2390
+ var e = removeChildrenAndAdd(display.measure, elt("pre", "x"));
2391
+ var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle;
2392
+ var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)};
2393
+ if (!isNaN(data.left) && !isNaN(data.right)) { display.cachedPaddingH = data; }
2394
+ return data
2395
+ }
2396
+
2397
+ function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth }
2398
+ function displayWidth(cm) {
2399
+ return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth
2400
+ }
2401
+ function displayHeight(cm) {
2402
+ return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight
2403
+ }
2404
+
2405
+ // Ensure the lineView.wrapping.heights array is populated. This is
2406
+ // an array of bottom offsets for the lines that make up a drawn
2407
+ // line. When lineWrapping is on, there might be more than one
2408
+ // height.
2409
+ function ensureLineHeights(cm, lineView, rect) {
2410
+ var wrapping = cm.options.lineWrapping;
2411
+ var curWidth = wrapping && displayWidth(cm);
2412
+ if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {
2413
+ var heights = lineView.measure.heights = [];
2414
+ if (wrapping) {
2415
+ lineView.measure.width = curWidth;
2416
+ var rects = lineView.text.firstChild.getClientRects();
2417
+ for (var i = 0; i < rects.length - 1; i++) {
2418
+ var cur = rects[i], next = rects[i + 1];
2419
+ if (Math.abs(cur.bottom - next.bottom) > 2)
2420
+ { heights.push((cur.bottom + next.top) / 2 - rect.top); }
2421
+ }
2422
+ }
2423
+ heights.push(rect.bottom - rect.top);
2424
+ }
2425
+ }
2426
+
2427
+ // Find a line map (mapping character offsets to text nodes) and a
2428
+ // measurement cache for the given line number. (A line view might
2429
+ // contain multiple lines when collapsed ranges are present.)
2430
+ function mapFromLineView(lineView, line, lineN) {
2431
+ if (lineView.line == line)
2432
+ { return {map: lineView.measure.map, cache: lineView.measure.cache} }
2433
+ for (var i = 0; i < lineView.rest.length; i++)
2434
+ { if (lineView.rest[i] == line)
2435
+ { return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]} } }
2436
+ for (var i$1 = 0; i$1 < lineView.rest.length; i$1++)
2437
+ { if (lineNo(lineView.rest[i$1]) > lineN)
2438
+ { return {map: lineView.measure.maps[i$1], cache: lineView.measure.caches[i$1], before: true} } }
2439
+ }
2440
+
2441
+ // Render a line into the hidden node display.externalMeasured. Used
2442
+ // when measurement is needed for a line that's not in the viewport.
2443
+ function updateExternalMeasurement(cm, line) {
2444
+ line = visualLine(line);
2445
+ var lineN = lineNo(line);
2446
+ var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN);
2447
+ view.lineN = lineN;
2448
+ var built = view.built = buildLineContent(cm, view);
2449
+ view.text = built.pre;
2450
+ removeChildrenAndAdd(cm.display.lineMeasure, built.pre);
2451
+ return view
2452
+ }
2453
+
2454
+ // Get a {top, bottom, left, right} box (in line-local coordinates)
2455
+ // for a given character.
2456
+ function measureChar(cm, line, ch, bias) {
2457
+ return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias)
2458
+ }
2459
+
2460
+ // Find a line view that corresponds to the given line number.
2461
+ function findViewForLine(cm, lineN) {
2462
+ if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)
2463
+ { return cm.display.view[findViewIndex(cm, lineN)] }
2464
+ var ext = cm.display.externalMeasured;
2465
+ if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)
2466
+ { return ext }
2467
+ }
2468
+
2469
+ // Measurement can be split in two steps, the set-up work that
2470
+ // applies to the whole line, and the measurement of the actual
2471
+ // character. Functions like coordsChar, that need to do a lot of
2472
+ // measurements in a row, can thus ensure that the set-up work is
2473
+ // only done once.
2474
+ function prepareMeasureForLine(cm, line) {
2475
+ var lineN = lineNo(line);
2476
+ var view = findViewForLine(cm, lineN);
2477
+ if (view && !view.text) {
2478
+ view = null;
2479
+ } else if (view && view.changes) {
2480
+ updateLineForChanges(cm, view, lineN, getDimensions(cm));
2481
+ cm.curOp.forceUpdate = true;
2482
+ }
2483
+ if (!view)
2484
+ { view = updateExternalMeasurement(cm, line); }
2485
+
2486
+ var info = mapFromLineView(view, line, lineN);
2487
+ return {
2488
+ line: line, view: view, rect: null,
2489
+ map: info.map, cache: info.cache, before: info.before,
2490
+ hasHeights: false
2491
+ }
2492
+ }
2493
+
2494
+ // Given a prepared measurement object, measures the position of an
2495
+ // actual character (or fetches it from the cache).
2496
+ function measureCharPrepared(cm, prepared, ch, bias, varHeight) {
2497
+ if (prepared.before) { ch = -1; }
2498
+ var key = ch + (bias || ""), found;
2499
+ if (prepared.cache.hasOwnProperty(key)) {
2500
+ found = prepared.cache[key];
2501
+ } else {
2502
+ if (!prepared.rect)
2503
+ { prepared.rect = prepared.view.text.getBoundingClientRect(); }
2504
+ if (!prepared.hasHeights) {
2505
+ ensureLineHeights(cm, prepared.view, prepared.rect);
2506
+ prepared.hasHeights = true;
2507
+ }
2508
+ found = measureCharInner(cm, prepared, ch, bias);
2509
+ if (!found.bogus) { prepared.cache[key] = found; }
2510
+ }
2511
+ return {left: found.left, right: found.right,
2512
+ top: varHeight ? found.rtop : found.top,
2513
+ bottom: varHeight ? found.rbottom : found.bottom}
2514
+ }
2515
+
2516
+ var nullRect = {left: 0, right: 0, top: 0, bottom: 0};
2517
+
2518
+ function nodeAndOffsetInLineMap(map$$1, ch, bias) {
2519
+ var node, start, end, collapse, mStart, mEnd;
2520
+ // First, search the line map for the text node corresponding to,
2521
+ // or closest to, the target character.
2522
+ for (var i = 0; i < map$$1.length; i += 3) {
2523
+ mStart = map$$1[i];
2524
+ mEnd = map$$1[i + 1];
2525
+ if (ch < mStart) {
2526
+ start = 0; end = 1;
2527
+ collapse = "left";
2528
+ } else if (ch < mEnd) {
2529
+ start = ch - mStart;
2530
+ end = start + 1;
2531
+ } else if (i == map$$1.length - 3 || ch == mEnd && map$$1[i + 3] > ch) {
2532
+ end = mEnd - mStart;
2533
+ start = end - 1;
2534
+ if (ch >= mEnd) { collapse = "right"; }
2535
+ }
2536
+ if (start != null) {
2537
+ node = map$$1[i + 2];
2538
+ if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right"))
2539
+ { collapse = bias; }
2540
+ if (bias == "left" && start == 0)
2541
+ { while (i && map$$1[i - 2] == map$$1[i - 3] && map$$1[i - 1].insertLeft) {
2542
+ node = map$$1[(i -= 3) + 2];
2543
+ collapse = "left";
2544
+ } }
2545
+ if (bias == "right" && start == mEnd - mStart)
2546
+ { while (i < map$$1.length - 3 && map$$1[i + 3] == map$$1[i + 4] && !map$$1[i + 5].insertLeft) {
2547
+ node = map$$1[(i += 3) + 2];
2548
+ collapse = "right";
2549
+ } }
2550
+ break
2551
+ }
2552
+ }
2553
+ return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd}
2554
+ }
2555
 
2556
+ function getUsefulRect(rects, bias) {
2557
+ var rect = nullRect;
2558
+ if (bias == "left") { for (var i = 0; i < rects.length; i++) {
2559
+ if ((rect = rects[i]).left != rect.right) { break }
2560
+ } } else { for (var i$1 = rects.length - 1; i$1 >= 0; i$1--) {
2561
+ if ((rect = rects[i$1]).left != rect.right) { break }
 
 
2562
  } }
2563
+ return rect
2564
+ }
2565
+
2566
+ function measureCharInner(cm, prepared, ch, bias) {
2567
+ var place = nodeAndOffsetInLineMap(prepared.map, ch, bias);
2568
+ var node = place.node, start = place.start, end = place.end, collapse = place.collapse;
2569
+
2570
+ var rect;
2571
+ if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.
2572
+ for (var i$1 = 0; i$1 < 4; i$1++) { // Retry a maximum of 4 times when nonsense rectangles are returned
2573
+ while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) { --start; }
2574
+ while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) { ++end; }
2575
+ if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart)
2576
+ { rect = node.parentNode.getBoundingClientRect(); }
2577
+ else
2578
+ { rect = getUsefulRect(range(node, start, end).getClientRects(), bias); }
2579
+ if (rect.left || rect.right || start == 0) { break }
2580
+ end = start;
2581
+ start = start - 1;
2582
+ collapse = "right";
2583
+ }
2584
+ if (ie && ie_version < 11) { rect = maybeUpdateRectForZooming(cm.display.measure, rect); }
2585
+ } else { // If it is a widget, simply get the box for the whole widget.
2586
+ if (start > 0) { collapse = bias = "right"; }
2587
+ var rects;
2588
+ if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)
2589
+ { rect = rects[bias == "right" ? rects.length - 1 : 0]; }
2590
+ else
2591
+ { rect = node.getBoundingClientRect(); }
2592
+ }
2593
+ if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {
2594
+ var rSpan = node.parentNode.getClientRects()[0];
2595
+ if (rSpan)
2596
+ { rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom}; }
2597
+ else
2598
+ { rect = nullRect; }
2599
+ }
2600
+
2601
+ var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top;
2602
+ var mid = (rtop + rbot) / 2;
2603
+ var heights = prepared.view.measure.heights;
2604
+ var i = 0;
2605
+ for (; i < heights.length - 1; i++)
2606
+ { if (mid < heights[i]) { break } }
2607
+ var top = i ? heights[i - 1] : 0, bot = heights[i];
2608
+ var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left,
2609
+ right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left,
2610
+ top: top, bottom: bot};
2611
+ if (!rect.left && !rect.right) { result.bogus = true; }
2612
+ if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; }
2613
+
2614
+ return result
2615
+ }
2616
+
2617
+ // Work around problem with bounding client rects on ranges being
2618
+ // returned incorrectly when zoomed on IE10 and below.
2619
+ function maybeUpdateRectForZooming(measure, rect) {
2620
+ if (!window.screen || screen.logicalXDPI == null ||
2621
+ screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))
2622
+ { return rect }
2623
+ var scaleX = screen.logicalXDPI / screen.deviceXDPI;
2624
+ var scaleY = screen.logicalYDPI / screen.deviceYDPI;
2625
+ return {left: rect.left * scaleX, right: rect.right * scaleX,
2626
+ top: rect.top * scaleY, bottom: rect.bottom * scaleY}
2627
+ }
2628
+
2629
+ function clearLineMeasurementCacheFor(lineView) {
2630
+ if (lineView.measure) {
2631
+ lineView.measure.cache = {};
2632
+ lineView.measure.heights = null;
2633
+ if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)
2634
+ { lineView.measure.caches[i] = {}; } }
2635
+ }
2636
+ }
2637
+
2638
+ function clearLineMeasurementCache(cm) {
2639
+ cm.display.externalMeasure = null;
2640
+ removeChildren(cm.display.lineMeasure);
2641
+ for (var i = 0; i < cm.display.view.length; i++)
2642
+ { clearLineMeasurementCacheFor(cm.display.view[i]); }
2643
+ }
2644
+
2645
+ function clearCaches(cm) {
2646
+ clearLineMeasurementCache(cm);
2647
+ cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null;
2648
+ if (!cm.options.lineWrapping) { cm.display.maxLineChanged = true; }
2649
+ cm.display.lineNumChars = null;
2650
+ }
2651
+
2652
+ function pageScrollX() {
2653
+ // Work around https://bugs.chromium.org/p/chromium/issues/detail?id=489206
2654
+ // which causes page_Offset and bounding client rects to use
2655
+ // different reference viewports and invalidate our calculations.
2656
+ if (chrome && android) { return -(document.body.getBoundingClientRect().left - parseInt(getComputedStyle(document.body).marginLeft)) }
2657
+ return window.pageXOffset || (document.documentElement || document.body).scrollLeft
2658
+ }
2659
+ function pageScrollY() {
2660
+ if (chrome && android) { return -(document.body.getBoundingClientRect().top - parseInt(getComputedStyle(document.body).marginTop)) }
2661
+ return window.pageYOffset || (document.documentElement || document.body).scrollTop
2662
+ }
2663
+
2664
+ function widgetTopHeight(lineObj) {
2665
+ var height = 0;
2666
+ if (lineObj.widgets) { for (var i = 0; i < lineObj.widgets.length; ++i) { if (lineObj.widgets[i].above)
2667
+ { height += widgetHeight(lineObj.widgets[i]); } } }
2668
+ return height
2669
+ }
2670
+
2671
+ // Converts a {top, bottom, left, right} box from line-local
2672
+ // coordinates into another coordinate system. Context may be one of
2673
+ // "line", "div" (display.lineDiv), "local"./null (editor), "window",
2674
+ // or "page".
2675
+ function intoCoordSystem(cm, lineObj, rect, context, includeWidgets) {
2676
+ if (!includeWidgets) {
2677
+ var height = widgetTopHeight(lineObj);
2678
+ rect.top += height; rect.bottom += height;
2679
+ }
2680
+ if (context == "line") { return rect }
2681
+ if (!context) { context = "local"; }
2682
+ var yOff = heightAtLine(lineObj);
2683
+ if (context == "local") { yOff += paddingTop(cm.display); }
2684
+ else { yOff -= cm.display.viewOffset; }
2685
+ if (context == "page" || context == "window") {
2686
+ var lOff = cm.display.lineSpace.getBoundingClientRect();
2687
+ yOff += lOff.top + (context == "window" ? 0 : pageScrollY());
2688
+ var xOff = lOff.left + (context == "window" ? 0 : pageScrollX());
2689
+ rect.left += xOff; rect.right += xOff;
2690
+ }
2691
+ rect.top += yOff; rect.bottom += yOff;
2692
+ return rect
2693
+ }
2694
+
2695
+ // Coverts a box from "div" coords to another coordinate system.
2696
+ // Context may be "window", "page", "div", or "local"./null.
2697
+ function fromCoordSystem(cm, coords, context) {
2698
+ if (context == "div") { return coords }
2699
+ var left = coords.left, top = coords.top;
2700
+ // First move into "page" coordinate system
2701
+ if (context == "page") {
2702
+ left -= pageScrollX();
2703
+ top -= pageScrollY();
2704
+ } else if (context == "local" || !context) {
2705
+ var localBox = cm.display.sizer.getBoundingClientRect();
2706
+ left += localBox.left;
2707
+ top += localBox.top;
2708
+ }
2709
+
2710
+ var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect();
2711
+ return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top}
2712
+ }
2713
+
2714
+ function charCoords(cm, pos, context, lineObj, bias) {
2715
+ if (!lineObj) { lineObj = getLine(cm.doc, pos.line); }
2716
+ return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context)
2717
+ }
2718
+
2719
+ // Returns a box for a given cursor position, which may have an
2720
+ // 'other' property containing the position of the secondary cursor
2721
+ // on a bidi boundary.
2722
+ // A cursor Pos(line, char, "before") is on the same visual line as `char - 1`
2723
+ // and after `char - 1` in writing order of `char - 1`
2724
+ // A cursor Pos(line, char, "after") is on the same visual line as `char`
2725
+ // and before `char` in writing order of `char`
2726
+ // Examples (upper-case letters are RTL, lower-case are LTR):
2727
+ // Pos(0, 1, ...)
2728
+ // before after
2729
+ // ab a|b a|b
2730
+ // aB a|B aB|
2731
+ // Ab |Ab A|b
2732
+ // AB B|A B|A
2733
+ // Every position after the last character on a line is considered to stick
2734
+ // to the last character on the line.
2735
+ function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {
2736
+ lineObj = lineObj || getLine(cm.doc, pos.line);
2737
+ if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); }
2738
+ function get(ch, right) {
2739
+ var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight);
2740
+ if (right) { m.left = m.right; } else { m.right = m.left; }
2741
+ return intoCoordSystem(cm, lineObj, m, context)
2742
+ }
2743
+ var order = getOrder(lineObj, cm.doc.direction), ch = pos.ch, sticky = pos.sticky;
2744
+ if (ch >= lineObj.text.length) {
2745
+ ch = lineObj.text.length;
2746
+ sticky = "before";
2747
+ } else if (ch <= 0) {
2748
+ ch = 0;
2749
+ sticky = "after";
2750
+ }
2751
+ if (!order) { return get(sticky == "before" ? ch - 1 : ch, sticky == "before") }
2752
+
2753
+ function getBidi(ch, partPos, invert) {
2754
+ var part = order[partPos], right = part.level == 1;
2755
+ return get(invert ? ch - 1 : ch, right != invert)
2756
+ }
2757
+ var partPos = getBidiPartAt(order, ch, sticky);
2758
+ var other = bidiOther;
2759
+ var val = getBidi(ch, partPos, sticky == "before");
2760
+ if (other != null) { val.other = getBidi(ch, other, sticky != "before"); }
2761
+ return val
2762
+ }
2763
+
2764
+ // Used to cheaply estimate the coordinates for a position. Used for
2765
+ // intermediate scroll updates.
2766
+ function estimateCoords(cm, pos) {
2767
+ var left = 0;
2768
+ pos = clipPos(cm.doc, pos);
2769
+ if (!cm.options.lineWrapping) { left = charWidth(cm.display) * pos.ch; }
2770
+ var lineObj = getLine(cm.doc, pos.line);
2771
+ var top = heightAtLine(lineObj) + paddingTop(cm.display);
2772
+ return {left: left, right: left, top: top, bottom: top + lineObj.height}
2773
+ }
2774
+
2775
+ // Positions returned by coordsChar contain some extra information.
2776
+ // xRel is the relative x position of the input coordinates compared
2777
+ // to the found position (so xRel > 0 means the coordinates are to
2778
+ // the right of the character position, for example). When outside
2779
+ // is true, that means the coordinates lie outside the line's
2780
+ // vertical range.
2781
+ function PosWithInfo(line, ch, sticky, outside, xRel) {
2782
+ var pos = Pos(line, ch, sticky);
2783
+ pos.xRel = xRel;
2784
+ if (outside) { pos.outside = true; }
2785
+ return pos
2786
+ }
2787
+
2788
+ // Compute the character position closest to the given coordinates.
2789
+ // Input must be lineSpace-local ("div" coordinate system).
2790
+ function coordsChar(cm, x, y) {
2791
+ var doc = cm.doc;
2792
+ y += cm.display.viewOffset;
2793
+ if (y < 0) { return PosWithInfo(doc.first, 0, null, true, -1) }
2794
+ var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1;
2795
+ if (lineN > last)
2796
+ { return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, null, true, 1) }
2797
+ if (x < 0) { x = 0; }
2798
+
2799
+ var lineObj = getLine(doc, lineN);
2800
+ for (;;) {
2801
+ var found = coordsCharInner(cm, lineObj, lineN, x, y);
2802
+ var collapsed = collapsedSpanAround(lineObj, found.ch + (found.xRel > 0 ? 1 : 0));
2803
+ if (!collapsed) { return found }
2804
+ var rangeEnd = collapsed.find(1);
2805
+ if (rangeEnd.line == lineN) { return rangeEnd }
2806
+ lineObj = getLine(doc, lineN = rangeEnd.line);
2807
+ }
2808
+ }
2809
+
2810
+ function wrappedLineExtent(cm, lineObj, preparedMeasure, y) {
2811
+ y -= widgetTopHeight(lineObj);
2812
+ var end = lineObj.text.length;
2813
+ var begin = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch - 1).bottom <= y; }, end, 0);
2814
+ end = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch).top > y; }, begin, end);
2815
+ return {begin: begin, end: end}
2816
+ }
2817
+
2818
+ function wrappedLineExtentChar(cm, lineObj, preparedMeasure, target) {
2819
+ if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); }
2820
+ var targetTop = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, target), "line").top;
2821
+ return wrappedLineExtent(cm, lineObj, preparedMeasure, targetTop)
2822
+ }
2823
+
2824
+ // Returns true if the given side of a box is after the given
2825
+ // coordinates, in top-to-bottom, left-to-right order.
2826
+ function boxIsAfter(box, x, y, left) {
2827
+ return box.bottom <= y ? false : box.top > y ? true : (left ? box.left : box.right) > x
2828
+ }
2829
+
2830
+ function coordsCharInner(cm, lineObj, lineNo$$1, x, y) {
2831
+ // Move y into line-local coordinate space
2832
+ y -= heightAtLine(lineObj);
2833
+ var preparedMeasure = prepareMeasureForLine(cm, lineObj);
2834
+ // When directly calling `measureCharPrepared`, we have to adjust
2835
+ // for the widgets at this line.
2836
+ var widgetHeight$$1 = widgetTopHeight(lineObj);
2837
+ var begin = 0, end = lineObj.text.length, ltr = true;
2838
+
2839
+ var order = getOrder(lineObj, cm.doc.direction);
2840
+ // If the line isn't plain left-to-right text, first figure out
2841
+ // which bidi section the coordinates fall into.
2842
+ if (order) {
2843
+ var part = (cm.options.lineWrapping ? coordsBidiPartWrapped : coordsBidiPart)
2844
+ (cm, lineObj, lineNo$$1, preparedMeasure, order, x, y);
2845
+ ltr = part.level != 1;
2846
+ // The awkward -1 offsets are needed because findFirst (called
2847
+ // on these below) will treat its first bound as inclusive,
2848
+ // second as exclusive, but we want to actually address the
2849
+ // characters in the part's range
2850
+ begin = ltr ? part.from : part.to - 1;
2851
+ end = ltr ? part.to : part.from - 1;
2852
+ }
2853
+
2854
+ // A binary search to find the first character whose bounding box
2855
+ // starts after the coordinates. If we run across any whose box wrap
2856
+ // the coordinates, store that.
2857
+ var chAround = null, boxAround = null;
2858
+ var ch = findFirst(function (ch) {
2859
+ var box = measureCharPrepared(cm, preparedMeasure, ch);
2860
+ box.top += widgetHeight$$1; box.bottom += widgetHeight$$1;
2861
+ if (!boxIsAfter(box, x, y, false)) { return false }
2862
+ if (box.top <= y && box.left <= x) {
2863
+ chAround = ch;
2864
+ boxAround = box;
2865
+ }
2866
+ return true
2867
+ }, begin, end);
2868
+
2869
+ var baseX, sticky, outside = false;
2870
+ // If a box around the coordinates was found, use that
2871
+ if (boxAround) {
2872
+ // Distinguish coordinates nearer to the left or right side of the box
2873
+ var atLeft = x - boxAround.left < boxAround.right - x, atStart = atLeft == ltr;
2874
+ ch = chAround + (atStart ? 0 : 1);
2875
+ sticky = atStart ? "after" : "before";
2876
+ baseX = atLeft ? boxAround.left : boxAround.right;
2877
+ } else {
2878
+ // (Adjust for extended bound, if necessary.)
2879
+ if (!ltr && (ch == end || ch == begin)) { ch++; }
2880
+ // To determine which side to associate with, get the box to the
2881
+ // left of the character and compare it's vertical position to the
2882
+ // coordinates
2883
+ sticky = ch == 0 ? "after" : ch == lineObj.text.length ? "before" :
2884
+ (measureCharPrepared(cm, preparedMeasure, ch - (ltr ? 1 : 0)).bottom + widgetHeight$$1 <= y) == ltr ?
2885
+ "after" : "before";
2886
+ // Now get accurate coordinates for this place, in order to get a
2887
+ // base X position
2888
+ var coords = cursorCoords(cm, Pos(lineNo$$1, ch, sticky), "line", lineObj, preparedMeasure);
2889
+ baseX = coords.left;
2890
+ outside = y < coords.top || y >= coords.bottom;
2891
+ }
2892
+
2893
+ ch = skipExtendingChars(lineObj.text, ch, 1);
2894
+ return PosWithInfo(lineNo$$1, ch, sticky, outside, x - baseX)
2895
+ }
2896
+
2897
+ function coordsBidiPart(cm, lineObj, lineNo$$1, preparedMeasure, order, x, y) {
2898
+ // Bidi parts are sorted left-to-right, and in a non-line-wrapping
2899
+ // situation, we can take this ordering to correspond to the visual
2900
+ // ordering. This finds the first part whose end is after the given
2901
+ // coordinates.
2902
+ var index = findFirst(function (i) {
2903
+ var part = order[i], ltr = part.level != 1;
2904
+ return boxIsAfter(cursorCoords(cm, Pos(lineNo$$1, ltr ? part.to : part.from, ltr ? "before" : "after"),
2905
+ "line", lineObj, preparedMeasure), x, y, true)
2906
+ }, 0, order.length - 1);
2907
+ var part = order[index];
2908
+ // If this isn't the first part, the part's start is also after
2909
+ // the coordinates, and the coordinates aren't on the same line as
2910
+ // that start, move one part back.
2911
+ if (index > 0) {
2912
+ var ltr = part.level != 1;
2913
+ var start = cursorCoords(cm, Pos(lineNo$$1, ltr ? part.from : part.to, ltr ? "after" : "before"),
2914
+ "line", lineObj, preparedMeasure);
2915
+ if (boxIsAfter(start, x, y, true) && start.top > y)
2916
+ { part = order[index - 1]; }
2917
+ }
2918
+ return part
2919
+ }
2920
+
2921
+ function coordsBidiPartWrapped(cm, lineObj, _lineNo, preparedMeasure, order, x, y) {
2922
+ // In a wrapped line, rtl text on wrapping boundaries can do things
2923
+ // that don't correspond to the ordering in our `order` array at
2924
+ // all, so a binary search doesn't work, and we want to return a
2925
+ // part that only spans one line so that the binary search in
2926
+ // coordsCharInner is safe. As such, we first find the extent of the
2927
+ // wrapped line, and then do a flat search in which we discard any
2928
+ // spans that aren't on the line.
2929
+ var ref = wrappedLineExtent(cm, lineObj, preparedMeasure, y);
2930
+ var begin = ref.begin;
2931
+ var end = ref.end;
2932
+ if (/\s/.test(lineObj.text.charAt(end - 1))) { end--; }
2933
+ var part = null, closestDist = null;
2934
+ for (var i = 0; i < order.length; i++) {
2935
+ var p = order[i];
2936
+ if (p.from >= end || p.to <= begin) { continue }
2937
+ var ltr = p.level != 1;
2938
+ var endX = measureCharPrepared(cm, preparedMeasure, ltr ? Math.min(end, p.to) - 1 : Math.max(begin, p.from)).right;
2939
+ // Weigh against spans ending before this, so that they are only
2940
+ // picked if nothing ends after
2941
+ var dist = endX < x ? x - endX + 1e9 : endX - x;
2942
+ if (!part || closestDist > dist) {
2943
+ part = p;
2944
+ closestDist = dist;
2945
+ }
2946
+ }
2947
+ if (!part) { part = order[order.length - 1]; }
2948
+ // Clip the part to the wrapped line.
2949
+ if (part.from < begin) { part = {from: begin, to: part.to, level: part.level}; }
2950
+ if (part.to > end) { part = {from: part.from, to: end, level: part.level}; }
2951
+ return part
2952
+ }
2953
+
2954
+ var measureText;
2955
+ // Compute the default text height.
2956
+ function textHeight(display) {
2957
+ if (display.cachedTextHeight != null) { return display.cachedTextHeight }
2958
+ if (measureText == null) {
2959
+ measureText = elt("pre");
2960
+ // Measure a bunch of lines, for browsers that compute
2961
+ // fractional heights.
2962
+ for (var i = 0; i < 49; ++i) {
2963
+ measureText.appendChild(document.createTextNode("x"));
2964
+ measureText.appendChild(elt("br"));
2965
+ }
2966
+ measureText.appendChild(document.createTextNode("x"));
2967
+ }
2968
+ removeChildrenAndAdd(display.measure, measureText);
2969
+ var height = measureText.offsetHeight / 50;
2970
+ if (height > 3) { display.cachedTextHeight = height; }
2971
+ removeChildren(display.measure);
2972
+ return height || 1
2973
+ }
2974
+
2975
+ // Compute the default character width.
2976
+ function charWidth(display) {
2977
+ if (display.cachedCharWidth != null) { return display.cachedCharWidth }
2978
+ var anchor = elt("span", "xxxxxxxxxx");
2979
+ var pre = elt("pre", [anchor]);
2980
+ removeChildrenAndAdd(display.measure, pre);
2981
+ var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10;
2982
+ if (width > 2) { display.cachedCharWidth = width; }
2983
+ return width || 10
2984
+ }
2985
+
2986
+ // Do a bulk-read of the DOM positions and sizes needed to draw the
2987
+ // view, so that we don't interleave reading and writing to the DOM.
2988
+ function getDimensions(cm) {
2989
+ var d = cm.display, left = {}, width = {};
2990
+ var gutterLeft = d.gutters.clientLeft;
2991
+ for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
2992
+ left[cm.options.gutters[i]] = n.offsetLeft + n.clientLeft + gutterLeft;
2993
+ width[cm.options.gutters[i]] = n.clientWidth;
2994
+ }
2995
+ return {fixedPos: compensateForHScroll(d),
2996
+ gutterTotalWidth: d.gutters.offsetWidth,
2997
+ gutterLeft: left,
2998
+ gutterWidth: width,
2999
+ wrapperWidth: d.wrapper.clientWidth}
3000
+ }
3001
+
3002
+ // Computes display.scroller.scrollLeft + display.gutters.offsetWidth,
3003
+ // but using getBoundingClientRect to get a sub-pixel-accurate
3004
+ // result.
3005
+ function compensateForHScroll(display) {
3006
+ return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left
3007
+ }
3008
+
3009
+ // Returns a function that estimates the height of a line, to use as
3010
+ // first approximation until the line becomes visible (and is thus
3011
+ // properly measurable).
3012
+ function estimateHeight(cm) {
3013
+ var th = textHeight(cm.display), wrapping = cm.options.lineWrapping;
3014
+ var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3);
3015
+ return function (line) {
3016
+ if (lineIsHidden(cm.doc, line)) { return 0 }
3017
+
3018
+ var widgetsHeight = 0;
3019
+ if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) {
3020
+ if (line.widgets[i].height) { widgetsHeight += line.widgets[i].height; }
3021
+ } }
3022
+
3023
+ if (wrapping)
3024
+ { return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th }
3025
+ else
3026
+ { return widgetsHeight + th }
3027
+ }
3028
+ }
3029
+
3030
+ function estimateLineHeights(cm) {
3031
+ var doc = cm.doc, est = estimateHeight(cm);
3032
+ doc.iter(function (line) {
3033
+ var estHeight = est(line);
3034
+ if (estHeight != line.height) { updateLineHeight(line, estHeight); }
3035
+ });
3036
+ }
3037
+
3038
+ // Given a mouse event, find the corresponding position. If liberal
3039
+ // is false, it checks whether a gutter or scrollbar was clicked,
3040
+ // and returns null if it was. forRect is used by rectangular
3041
+ // selections, and tries to estimate a character position even for
3042
+ // coordinates beyond the right of the text.
3043
+ function posFromMouse(cm, e, liberal, forRect) {
3044
+ var display = cm.display;
3045
+ if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") { return null }
3046
+
3047
+ var x, y, space = display.lineSpace.getBoundingClientRect();
3048
+ // Fails unpredictably on IE[67] when mouse is dragged around quickly.
3049
+ try { x = e.clientX - space.left; y = e.clientY - space.top; }
3050
+ catch (e) { return null }
3051
+ var coords = coordsChar(cm, x, y), line;
3052
+ if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
3053
+ var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length;
3054
+ coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff));
3055
+ }
3056
+ return coords
3057
+ }
3058
+
3059
+ // Find the view element corresponding to a given line. Return null
3060
+ // when the line isn't visible.
3061
+ function findViewIndex(cm, n) {
3062
+ if (n >= cm.display.viewTo) { return null }
3063
+ n -= cm.display.viewFrom;
3064
+ if (n < 0) { return null }
3065
+ var view = cm.display.view;
3066
+ for (var i = 0; i < view.length; i++) {
3067
+ n -= view[i].size;
3068
+ if (n < 0) { return i }
3069
+ }
3070
+ }
3071
+
3072
+ function updateSelection(cm) {
3073
+ cm.display.input.showSelection(cm.display.input.prepareSelection());
3074
+ }
3075
+
3076
+ function prepareSelection(cm, primary) {
3077
+ if ( primary === void 0 ) primary = true;
3078
+
3079
+ var doc = cm.doc, result = {};
3080
+ var curFragment = result.cursors = document.createDocumentFragment();
3081
+ var selFragment = result.selection = document.createDocumentFragment();
3082
+
3083
+ for (var i = 0; i < doc.sel.ranges.length; i++) {
3084
+ if (!primary && i == doc.sel.primIndex) { continue }
3085
+ var range$$1 = doc.sel.ranges[i];
3086
+ if (range$$1.from().line >= cm.display.viewTo || range$$1.to().line < cm.display.viewFrom) { continue }
3087
+ var collapsed = range$$1.empty();
3088
+ if (collapsed || cm.options.showCursorWhenSelecting)
3089
+ { drawSelectionCursor(cm, range$$1.head, curFragment); }
3090
+ if (!collapsed)
3091
+ { drawSelectionRange(cm, range$$1, selFragment); }
3092
+ }
3093
+ return result
3094
+ }
3095
+
3096
+ // Draws a cursor for the given range
3097
+ function drawSelectionCursor(cm, head, output) {
3098
+ var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine);
3099
+
3100
+ var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor"));
3101
+ cursor.style.left = pos.left + "px";
3102
+ cursor.style.top = pos.top + "px";
3103
+ cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px";
3104
+
3105
+ if (pos.other) {
3106
+ // Secondary cursor, shown when on a 'jump' in bi-directional text
3107
+ var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"));
3108
+ otherCursor.style.display = "";
3109
+ otherCursor.style.left = pos.other.left + "px";
3110
+ otherCursor.style.top = pos.other.top + "px";
3111
+ otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px";
3112
+ }
3113
+ }
3114
+
3115
+ function cmpCoords(a, b) { return a.top - b.top || a.left - b.left }
3116
+
3117
+ // Draws the given range as a highlighted selection
3118
+ function drawSelectionRange(cm, range$$1, output) {
3119
+ var display = cm.display, doc = cm.doc;
3120
+ var fragment = document.createDocumentFragment();
3121
+ var padding = paddingH(cm.display), leftSide = padding.left;
3122
+ var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right;
3123
+ var docLTR = doc.direction == "ltr";
3124
+
3125
+ function add(left, top, width, bottom) {
3126
+ if (top < 0) { top = 0; }
3127
+ top = Math.round(top);
3128
+ bottom = Math.round(bottom);
3129
+ fragment.appendChild(elt("div", null, "CodeMirror-selected", ("position: absolute; left: " + left + "px;\n top: " + top + "px; width: " + (width == null ? rightSide - left : width) + "px;\n height: " + (bottom - top) + "px")));
3130
+ }
3131
+
3132
+ function drawForLine(line, fromArg, toArg) {
3133
+ var lineObj = getLine(doc, line);
3134
+ var lineLen = lineObj.text.length;
3135
+ var start, end;
3136
+ function coords(ch, bias) {
3137
+ return charCoords(cm, Pos(line, ch), "div", lineObj, bias)
3138
+ }
3139
+
3140
+ function wrapX(pos, dir, side) {
3141
+ var extent = wrappedLineExtentChar(cm, lineObj, null, pos);
3142
+ var prop = (dir == "ltr") == (side == "after") ? "left" : "right";
3143
+ var ch = side == "after" ? extent.begin : extent.end - (/\s/.test(lineObj.text.charAt(extent.end - 1)) ? 2 : 1);
3144
+ return coords(ch, prop)[prop]
3145
+ }
3146
+
3147
+ var order = getOrder(lineObj, doc.direction);
3148
+ iterateBidiSections(order, fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir, i) {
3149
+ var ltr = dir == "ltr";
3150
+ var fromPos = coords(from, ltr ? "left" : "right");
3151
+ var toPos = coords(to - 1, ltr ? "right" : "left");
3152
+
3153
+ var openStart = fromArg == null && from == 0, openEnd = toArg == null && to == lineLen;
3154
+ var first = i == 0, last = !order || i == order.length - 1;
3155
+ if (toPos.top - fromPos.top <= 3) { // Single line
3156
+ var openLeft = (docLTR ? openStart : openEnd) && first;
3157
+ var openRight = (docLTR ? openEnd : openStart) && last;
3158
+ var left = openLeft ? leftSide : (ltr ? fromPos : toPos).left;
3159
+ var right = openRight ? rightSide : (ltr ? toPos : fromPos).right;
3160
+ add(left, fromPos.top, right - left, fromPos.bottom);
3161
+ } else { // Multiple lines
3162
+ var topLeft, topRight, botLeft, botRight;
3163
+ if (ltr) {
3164
+ topLeft = docLTR && openStart && first ? leftSide : fromPos.left;
3165
+ topRight = docLTR ? rightSide : wrapX(from, dir, "before");
3166
+ botLeft = docLTR ? leftSide : wrapX(to, dir, "after");
3167
+ botRight = docLTR && openEnd && last ? rightSide : toPos.right;
3168
+ } else {
3169
+ topLeft = !docLTR ? leftSide : wrapX(from, dir, "before");
3170
+ topRight = !docLTR && openStart && first ? rightSide : fromPos.right;
3171
+ botLeft = !docLTR && openEnd && last ? leftSide : toPos.left;
3172
+ botRight = !docLTR ? rightSide : wrapX(to, dir, "after");
3173
+ }
3174
+ add(topLeft, fromPos.top, topRight - topLeft, fromPos.bottom);
3175
+ if (fromPos.bottom < toPos.top) { add(leftSide, fromPos.bottom, null, toPos.top); }
3176
+ add(botLeft, toPos.top, botRight - botLeft, toPos.bottom);
3177
+ }
3178
+
3179
+ if (!start || cmpCoords(fromPos, start) < 0) { start = fromPos; }
3180
+ if (cmpCoords(toPos, start) < 0) { start = toPos; }
3181
+ if (!end || cmpCoords(fromPos, end) < 0) { end = fromPos; }
3182
+ if (cmpCoords(toPos, end) < 0) { end = toPos; }
3183
+ });
3184
+ return {start: start, end: end}
3185
+ }
3186
+
3187
+ var sFrom = range$$1.from(), sTo = range$$1.to();
3188
+ if (sFrom.line == sTo.line) {
3189
+ drawForLine(sFrom.line, sFrom.ch, sTo.ch);
3190
+ } else {
3191
+ var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line);
3192
+ var singleVLine = visualLine(fromLine) == visualLine(toLine);
3193
+ var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end;
3194
+ var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start;
3195
+ if (singleVLine) {
3196
+ if (leftEnd.top < rightStart.top - 2) {
3197
+ add(leftEnd.right, leftEnd.top, null, leftEnd.bottom);
3198
+ add(leftSide, rightStart.top, rightStart.left, rightStart.bottom);
3199
+ } else {
3200
+ add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom);
3201
+ }
3202
+ }
3203
+ if (leftEnd.bottom < rightStart.top)
3204
+ { add(leftSide, leftEnd.bottom, null, rightStart.top); }
3205
+ }
3206
+
3207
+ output.appendChild(fragment);
3208
+ }
3209
+
3210
+ // Cursor-blinking
3211
+ function restartBlink(cm) {
3212
+ if (!cm.state.focused) { return }
3213
+ var display = cm.display;
3214
+ clearInterval(display.blinker);
3215
+ var on = true;
3216
+ display.cursorDiv.style.visibility = "";
3217
+ if (cm.options.cursorBlinkRate > 0)
3218
+ { display.blinker = setInterval(function () { return display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden"; },
3219
+ cm.options.cursorBlinkRate); }
3220
+ else if (cm.options.cursorBlinkRate < 0)
3221
+ { display.cursorDiv.style.visibility = "hidden"; }
3222
+ }
3223
+
3224
+ function ensureFocus(cm) {
3225
+ if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm); }
3226
+ }
3227
+
3228
+ function delayBlurEvent(cm) {
3229
+ cm.state.delayingBlurEvent = true;
3230
+ setTimeout(function () { if (cm.state.delayingBlurEvent) {
3231
+ cm.state.delayingBlurEvent = false;
3232
+ onBlur(cm);
3233
+ } }, 100);
3234
+ }
3235
+
3236
+ function onFocus(cm, e) {
3237
+ if (cm.state.delayingBlurEvent) { cm.state.delayingBlurEvent = false; }
3238
+
3239
+ if (cm.options.readOnly == "nocursor") { return }
3240
+ if (!cm.state.focused) {
3241
+ signal(cm, "focus", cm, e);
3242
+ cm.state.focused = true;
3243
+ addClass(cm.display.wrapper, "CodeMirror-focused");
3244
+ // This test prevents this from firing when a context
3245
+ // menu is closed (since the input reset would kill the
3246
+ // select-all detection hack)
3247
+ if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {
3248
+ cm.display.input.reset();
3249
+ if (webkit) { setTimeout(function () { return cm.display.input.reset(true); }, 20); } // Issue #1730
3250
+ }
3251
+ cm.display.input.receivedFocus();
3252
+ }
3253
+ restartBlink(cm);
3254
+ }
3255
+ function onBlur(cm, e) {
3256
+ if (cm.state.delayingBlurEvent) { return }
3257
+
3258
+ if (cm.state.focused) {
3259
+ signal(cm, "blur", cm, e);
3260
+ cm.state.focused = false;
3261
+ rmClass(cm.display.wrapper, "CodeMirror-focused");
3262
+ }
3263
+ clearInterval(cm.display.blinker);
3264
+ setTimeout(function () { if (!cm.state.focused) { cm.display.shift = false; } }, 150);
3265
+ }
3266
+
3267
+ // Read the actual heights of the rendered lines, and update their
3268
+ // stored heights to match.
3269
+ function updateHeightsInViewport(cm) {
3270
+ var display = cm.display;
3271
+ var prevBottom = display.lineDiv.offsetTop;
3272
+ for (var i = 0; i < display.view.length; i++) {
3273
+ var cur = display.view[i], wrapping = cm.options.lineWrapping;
3274
+ var height = (void 0), width = 0;
3275
+ if (cur.hidden) { continue }
3276
+ if (ie && ie_version < 8) {
3277
+ var bot = cur.node.offsetTop + cur.node.offsetHeight;
3278
+ height = bot - prevBottom;
3279
+ prevBottom = bot;
3280
+ } else {
3281
+ var box = cur.node.getBoundingClientRect();
3282
+ height = box.bottom - box.top;
3283
+ // Check that lines don't extend past the right of the current
3284
+ // editor width
3285
+ if (!wrapping && cur.text.firstChild)
3286
+ { width = cur.text.firstChild.getBoundingClientRect().right - box.left - 1; }
3287
+ }
3288
+ var diff = cur.line.height - height;
3289
+ if (diff > .005 || diff < -.005) {
3290
+ updateLineHeight(cur.line, height);
3291
+ updateWidgetHeight(cur.line);
3292
+ if (cur.rest) { for (var j = 0; j < cur.rest.length; j++)
3293
+ { updateWidgetHeight(cur.rest[j]); } }
3294
+ }
3295
+ if (width > cm.display.sizerWidth) {
3296
+ var chWidth = Math.ceil(width / charWidth(cm.display));
3297
+ if (chWidth > cm.display.maxLineLength) {
3298
+ cm.display.maxLineLength = chWidth;
3299
+ cm.display.maxLine = cur.line;
3300
+ cm.display.maxLineChanged = true;
3301
+ }
3302
+ }
3303
+ }
3304
+ }
3305
+
3306
+ // Read and store the height of line widgets associated with the
3307
+ // given line.
3308
+ function updateWidgetHeight(line) {
3309
+ if (line.widgets) { for (var i = 0; i < line.widgets.length; ++i) {
3310
+ var w = line.widgets[i], parent = w.node.parentNode;
3311
+ if (parent) { w.height = parent.offsetHeight; }
3312
+ } }
3313
+ }
3314
+
3315
+ // Compute the lines that are visible in a given viewport (defaults
3316
+ // the the current scroll position). viewport may contain top,
3317
+ // height, and ensure (see op.scrollToPos) properties.
3318
+ function visibleLines(display, doc, viewport) {
3319
+ var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop;
3320
+ top = Math.floor(top - paddingTop(display));
3321
+ var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight;
3322
+
3323
+ var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom);
3324
+ // Ensure is a {from: {line, ch}, to: {line, ch}} object, and
3325
+ // forces those lines into the viewport (if possible).
3326
+ if (viewport && viewport.ensure) {
3327
+ var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line;
3328
+ if (ensureFrom < from) {
3329
+ from = ensureFrom;
3330
+ to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight);
3331
+ } else if (Math.min(ensureTo, doc.lastLine()) >= to) {
3332
+ from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight);
3333
+ to = ensureTo;
3334
+ }
3335
+ }
3336
+ return {from: from, to: Math.max(to, from + 1)}
3337
+ }
3338
+
3339
+ // Re-align line numbers and gutter marks to compensate for
3340
+ // horizontal scrolling.
3341
+ function alignHorizontally(cm) {
3342
+ var display = cm.display, view = display.view;
3343
+ if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) { return }
3344
+ var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft;
3345
+ var gutterW = display.gutters.offsetWidth, left = comp + "px";
3346
+ for (var i = 0; i < view.length; i++) { if (!view[i].hidden) {
3347
+ if (cm.options.fixedGutter) {
3348
+ if (view[i].gutter)
3349
+ { view[i].gutter.style.left = left; }
3350
+ if (view[i].gutterBackground)
3351
+ { view[i].gutterBackground.style.left = left; }
3352
+ }
3353
+ var align = view[i].alignable;
3354
+ if (align) { for (var j = 0; j < align.length; j++)
3355
+ { align[j].style.left = left; } }
3356
+ } }
3357
+ if (cm.options.fixedGutter)
3358
+ { display.gutters.style.left = (comp + gutterW) + "px"; }
3359
+ }
3360
+
3361
+ // Used to ensure that the line number gutter is still the right
3362
+ // size for the current document size. Returns true when an update
3363
+ // is needed.
3364
+ function maybeUpdateLineNumberWidth(cm) {
3365
+ if (!cm.options.lineNumbers) { return false }
3366
+ var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display;
3367
+ if (last.length != display.lineNumChars) {
3368
+ var test = display.measure.appendChild(elt("div", [elt("div", last)],
3369
+ "CodeMirror-linenumber CodeMirror-gutter-elt"));
3370
+ var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW;
3371
+ display.lineGutter.style.width = "";
3372
+ display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1;
3373
+ display.lineNumWidth = display.lineNumInnerWidth + padding;
3374
+ display.lineNumChars = display.lineNumInnerWidth ? last.length : -1;
3375
+ display.lineGutter.style.width = display.lineNumWidth + "px";
3376
+ updateGutterSpace(cm);
3377
+ return true
3378
+ }
3379
+ return false
3380
+ }
3381
+
3382
+ // SCROLLING THINGS INTO VIEW
3383
+
3384
+ // If an editor sits on the top or bottom of the window, partially
3385
+ // scrolled out of view, this ensures that the cursor is visible.
3386
+ function maybeScrollWindow(cm, rect) {
3387
+ if (signalDOMEvent(cm, "scrollCursorIntoView")) { return }
3388
+
3389
+ var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null;
3390
+ if (rect.top + box.top < 0) { doScroll = true; }
3391
+ else if (rect.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) { doScroll = false; }
3392
+ if (doScroll != null && !phantom) {
3393
+ var scrollNode = elt("div", "\u200b", null, ("position: absolute;\n top: " + (rect.top - display.viewOffset - paddingTop(cm.display)) + "px;\n height: " + (rect.bottom - rect.top + scrollGap(cm) + display.barHeight) + "px;\n left: " + (rect.left) + "px; width: " + (Math.max(2, rect.right - rect.left)) + "px;"));
3394
+ cm.display.lineSpace.appendChild(scrollNode);
3395
+ scrollNode.scrollIntoView(doScroll);
3396
+ cm.display.lineSpace.removeChild(scrollNode);
3397
+ }
3398
+ }
3399
+
3400
+ // Scroll a given position into view (immediately), verifying that
3401
+ // it actually became visible (as line heights are accurately
3402
+ // measured, the position of something may 'drift' during drawing).
3403
+ function scrollPosIntoView(cm, pos, end, margin) {
3404
+ if (margin == null) { margin = 0; }
3405
+ var rect;
3406
+ if (!cm.options.lineWrapping && pos == end) {
3407
+ // Set pos and end to the cursor positions around the character pos sticks to
3408
+ // If pos.sticky == "before", that is around pos.ch - 1, otherwise around pos.ch
3409
+ // If pos == Pos(_, 0, "before"), pos and end are unchanged
3410
+ pos = pos.ch ? Pos(pos.line, pos.sticky == "before" ? pos.ch - 1 : pos.ch, "after") : pos;
3411
+ end = pos.sticky == "before" ? Pos(pos.line, pos.ch + 1, "before") : pos;
3412
+ }
3413
+ for (var limit = 0; limit < 5; limit++) {
3414
+ var changed = false;
3415
+ var coords = cursorCoords(cm, pos);
3416
+ var endCoords = !end || end == pos ? coords : cursorCoords(cm, end);
3417
+ rect = {left: Math.min(coords.left, endCoords.left),
3418
+ top: Math.min(coords.top, endCoords.top) - margin,
3419
+ right: Math.max(coords.left, endCoords.left),
3420
+ bottom: Math.max(coords.bottom, endCoords.bottom) + margin};
3421
+ var scrollPos = calculateScrollPos(cm, rect);
3422
+ var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft;
3423
+ if (scrollPos.scrollTop != null) {
3424
+ updateScrollTop(cm, scrollPos.scrollTop);
3425
+ if (Math.abs(cm.doc.scrollTop - startTop) > 1) { changed = true; }
3426
+ }
3427
+ if (scrollPos.scrollLeft != null) {
3428
+ setScrollLeft(cm, scrollPos.scrollLeft);
3429
+ if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) { changed = true; }
3430
+ }
3431
+ if (!changed) { break }
3432
+ }
3433
+ return rect
3434
+ }
3435
+
3436
+ // Scroll a given set of coordinates into view (immediately).
3437
+ function scrollIntoView(cm, rect) {
3438
+ var scrollPos = calculateScrollPos(cm, rect);
3439
+ if (scrollPos.scrollTop != null) { updateScrollTop(cm, scrollPos.scrollTop); }
3440
+ if (scrollPos.scrollLeft != null) { setScrollLeft(cm, scrollPos.scrollLeft); }
3441
+ }
3442
+
3443
+ // Calculate a new scroll position needed to scroll the given
3444
+ // rectangle into view. Returns an object with scrollTop and
3445
+ // scrollLeft properties. When these are undefined, the
3446
+ // vertical/horizontal position does not need to be adjusted.
3447
+ function calculateScrollPos(cm, rect) {
3448
+ var display = cm.display, snapMargin = textHeight(cm.display);
3449
+ if (rect.top < 0) { rect.top = 0; }
3450
+ var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop;
3451
+ var screen = displayHeight(cm), result = {};
3452
+ if (rect.bottom - rect.top > screen) { rect.bottom = rect.top + screen; }
3453
+ var docBottom = cm.doc.height + paddingVert(display);
3454
+ var atTop = rect.top < snapMargin, atBottom = rect.bottom > docBottom - snapMargin;
3455
+ if (rect.top < screentop) {
3456
+ result.scrollTop = atTop ? 0 : rect.top;
3457
+ } else if (rect.bottom > screentop + screen) {
3458
+ var newTop = Math.min(rect.top, (atBottom ? docBottom : rect.bottom) - screen);
3459
+ if (newTop != screentop) { result.scrollTop = newTop; }
3460
+ }
3461
+
3462
+ var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft;
3463
+ var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0);
3464
+ var tooWide = rect.right - rect.left > screenw;
3465
+ if (tooWide) { rect.right = rect.left + screenw; }
3466
+ if (rect.left < 10)
3467
+ { result.scrollLeft = 0; }
3468
+ else if (rect.left < screenleft)
3469
+ { result.scrollLeft = Math.max(0, rect.left - (tooWide ? 0 : 10)); }
3470
+ else if (rect.right > screenw + screenleft - 3)
3471
+ { result.scrollLeft = rect.right + (tooWide ? 0 : 10) - screenw; }
3472
+ return result
3473
+ }
3474
+
3475
+ // Store a relative adjustment to the scroll position in the current
3476
+ // operation (to be applied when the operation finishes).
3477
+ function addToScrollTop(cm, top) {
3478
+ if (top == null) { return }
3479
+ resolveScrollToPos(cm);
3480
+ cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top;
3481
+ }
3482
+
3483
+ // Make sure that at the end of the operation the current cursor is
3484
+ // shown.
3485
+ function ensureCursorVisible(cm) {
3486
+ resolveScrollToPos(cm);
3487
+ var cur = cm.getCursor();
3488
+ cm.curOp.scrollToPos = {from: cur, to: cur, margin: cm.options.cursorScrollMargin};
3489
+ }
3490
+
3491
+ function scrollToCoords(cm, x, y) {
3492
+ if (x != null || y != null) { resolveScrollToPos(cm); }
3493
+ if (x != null) { cm.curOp.scrollLeft = x; }
3494
+ if (y != null) { cm.curOp.scrollTop = y; }
3495
+ }
3496
+
3497
+ function scrollToRange(cm, range$$1) {
3498
+ resolveScrollToPos(cm);
3499
+ cm.curOp.scrollToPos = range$$1;
3500
+ }
3501
+
3502
+ // When an operation has its scrollToPos property set, and another
3503
+ // scroll action is applied before the end of the operation, this
3504
+ // 'simulates' scrolling that position into view in a cheap way, so
3505
+ // that the effect of intermediate scroll commands is not ignored.
3506
+ function resolveScrollToPos(cm) {
3507
+ var range$$1 = cm.curOp.scrollToPos;
3508
+ if (range$$1) {
3509
+ cm.curOp.scrollToPos = null;
3510
+ var from = estimateCoords(cm, range$$1.from), to = estimateCoords(cm, range$$1.to);
3511
+ scrollToCoordsRange(cm, from, to, range$$1.margin);
3512
+ }
3513
+ }
3514
+
3515
+ function scrollToCoordsRange(cm, from, to, margin) {
3516
+ var sPos = calculateScrollPos(cm, {
3517
+ left: Math.min(from.left, to.left),
3518
+ top: Math.min(from.top, to.top) - margin,
3519
+ right: Math.max(from.right, to.right),
3520
+ bottom: Math.max(from.bottom, to.bottom) + margin
3521
+ });
3522
+ scrollToCoords(cm, sPos.scrollLeft, sPos.scrollTop);
3523
+ }
3524
+
3525
+ // Sync the scrollable area and scrollbars, ensure the viewport
3526
+ // covers the visible area.
3527
+ function updateScrollTop(cm, val) {
3528
+ if (Math.abs(cm.doc.scrollTop - val) < 2) { return }
3529
+ if (!gecko) { updateDisplaySimple(cm, {top: val}); }
3530
+ setScrollTop(cm, val, true);
3531
+ if (gecko) { updateDisplaySimple(cm); }
3532
+ startWorker(cm, 100);
3533
+ }
3534
+
3535
+ function setScrollTop(cm, val, forceScroll) {
3536
+ val = Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, val);
3537
+ if (cm.display.scroller.scrollTop == val && !forceScroll) { return }
3538
+ cm.doc.scrollTop = val;
3539
+ cm.display.scrollbars.setScrollTop(val);
3540
+ if (cm.display.scroller.scrollTop != val) { cm.display.scroller.scrollTop = val; }
3541
+ }
3542
+
3543
+ // Sync scroller and scrollbar, ensure the gutter elements are
3544
+ // aligned.
3545
+ function setScrollLeft(cm, val, isScroller, forceScroll) {
3546
+ val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth);
3547
+ if ((isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) && !forceScroll) { return }
3548
+ cm.doc.scrollLeft = val;
3549
+ alignHorizontally(cm);
3550
+ if (cm.display.scroller.scrollLeft != val) { cm.display.scroller.scrollLeft = val; }
3551
+ cm.display.scrollbars.setScrollLeft(val);
3552
+ }
3553
+
3554
+ // SCROLLBARS
3555
+
3556
+ // Prepare DOM reads needed to update the scrollbars. Done in one
3557
+ // shot to minimize update/measure roundtrips.
3558
+ function measureForScrollbars(cm) {
3559
+ var d = cm.display, gutterW = d.gutters.offsetWidth;
3560
+ var docH = Math.round(cm.doc.height + paddingVert(cm.display));
3561
+ return {
3562
+ clientHeight: d.scroller.clientHeight,
3563
+ viewHeight: d.wrapper.clientHeight,
3564
+ scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,
3565
+ viewWidth: d.wrapper.clientWidth,
3566
+ barLeft: cm.options.fixedGutter ? gutterW : 0,
3567
+ docHeight: docH,
3568
+ scrollHeight: docH + scrollGap(cm) + d.barHeight,
3569
+ nativeBarWidth: d.nativeBarWidth,
3570
+ gutterWidth: gutterW
3571
+ }
3572
+ }
3573
+
3574
+ var NativeScrollbars = function(place, scroll, cm) {
3575
+ this.cm = cm;
3576
+ var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar");
3577
+ var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar");
3578
+ vert.tabIndex = horiz.tabIndex = -1;
3579
+ place(vert); place(horiz);
3580
+
3581
+ on(vert, "scroll", function () {
3582
+ if (vert.clientHeight) { scroll(vert.scrollTop, "vertical"); }
3583
+ });
3584
+ on(horiz, "scroll", function () {
3585
+ if (horiz.clientWidth) { scroll(horiz.scrollLeft, "horizontal"); }
3586
+ });
3587
+
3588
+ this.checkedZeroWidth = false;
3589
+ // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
3590
+ if (ie && ie_version < 8) { this.horiz.style.minHeight = this.vert.style.minWidth = "18px"; }
3591
+ };
3592
+
3593
+ NativeScrollbars.prototype.update = function (measure) {
3594
+ var needsH = measure.scrollWidth > measure.clientWidth + 1;
3595
+ var needsV = measure.scrollHeight > measure.clientHeight + 1;
3596
+ var sWidth = measure.nativeBarWidth;
3597
+
3598
+ if (needsV) {
3599
+ this.vert.style.display = "block";
3600
+ this.vert.style.bottom = needsH ? sWidth + "px" : "0";
3601
+ var totalHeight = measure.viewHeight - (needsH ? sWidth : 0);
3602
+ // A bug in IE8 can cause this value to be negative, so guard it.
3603
+ this.vert.firstChild.style.height =
3604
+ Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px";
3605
+ } else {
3606
+ this.vert.style.display = "";
3607
+ this.vert.firstChild.style.height = "0";
3608
+ }
3609
+
3610
+ if (needsH) {
3611
+ this.horiz.style.display = "block";
3612
+ this.horiz.style.right = needsV ? sWidth + "px" : "0";
3613
+ this.horiz.style.left = measure.barLeft + "px";
3614
+ var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0);
3615
+ this.horiz.firstChild.style.width =
3616
+ Math.max(0, measure.scrollWidth - measure.clientWidth + totalWidth) + "px";
3617
+ } else {
3618
+ this.horiz.style.display = "";
3619
+ this.horiz.firstChild.style.width = "0";
3620
+ }
3621
+
3622
+ if (!this.checkedZeroWidth && measure.clientHeight > 0) {
3623
+ if (sWidth == 0) { this.zeroWidthHack(); }
3624
+ this.checkedZeroWidth = true;
3625
+ }
3626
+
3627
+ return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0}
3628
+ };
3629
+
3630
+ NativeScrollbars.prototype.setScrollLeft = function (pos) {
3631
+ if (this.horiz.scrollLeft != pos) { this.horiz.scrollLeft = pos; }
3632
+ if (this.disableHoriz) { this.enableZeroWidthBar(this.horiz, this.disableHoriz, "horiz"); }
3633
+ };
3634
+
3635
+ NativeScrollbars.prototype.setScrollTop = function (pos) {
3636
+ if (this.vert.scrollTop != pos) { this.vert.scrollTop = pos; }
3637
+ if (this.disableVert) { this.enableZeroWidthBar(this.vert, this.disableVert, "vert"); }
3638
+ };
3639
+
3640
+ NativeScrollbars.prototype.zeroWidthHack = function () {
3641
+ var w = mac && !mac_geMountainLion ? "12px" : "18px";
3642
+ this.horiz.style.height = this.vert.style.width = w;
3643
+ this.horiz.style.pointerEvents = this.vert.style.pointerEvents = "none";
3644
+ this.disableHoriz = new Delayed;
3645
+ this.disableVert = new Delayed;
3646
+ };
3647
+
3648
+ NativeScrollbars.prototype.enableZeroWidthBar = function (bar, delay, type) {
3649
+ bar.style.pointerEvents = "auto";
3650
+ function maybeDisable() {
3651
+ // To find out whether the scrollbar is still visible, we
3652
+ // check whether the element under the pixel in the bottom
3653
+ // right corner of the scrollbar box is the scrollbar box
3654
+ // itself (when the bar is still visible) or its filler child
3655
+ // (when the bar is hidden). If it is still visible, we keep
3656
+ // it enabled, if it's hidden, we disable pointer events.
3657
+ var box = bar.getBoundingClientRect();
3658
+ var elt$$1 = type == "vert" ? document.elementFromPoint(box.right - 1, (box.top + box.bottom) / 2)
3659
+ : document.elementFromPoint((box.right + box.left) / 2, box.bottom - 1);
3660
+ if (elt$$1 != bar) { bar.style.pointerEvents = "none"; }
3661
+ else { delay.set(1000, maybeDisable); }
3662
+ }
3663
+ delay.set(1000, maybeDisable);
3664
+ };
3665
+
3666
+ NativeScrollbars.prototype.clear = function () {
3667
+ var parent = this.horiz.parentNode;
3668
+ parent.removeChild(this.horiz);
3669
+ parent.removeChild(this.vert);
3670
+ };
3671
+
3672
+ var NullScrollbars = function () {};
3673
+
3674
+ NullScrollbars.prototype.update = function () { return {bottom: 0, right: 0} };
3675
+ NullScrollbars.prototype.setScrollLeft = function () {};
3676
+ NullScrollbars.prototype.setScrollTop = function () {};
3677
+ NullScrollbars.prototype.clear = function () {};
3678
+
3679
+ function updateScrollbars(cm, measure) {
3680
+ if (!measure) { measure = measureForScrollbars(cm); }
3681
+ var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight;
3682
+ updateScrollbarsInner(cm, measure);
3683
+ for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {
3684
+ if (startWidth != cm.display.barWidth && cm.options.lineWrapping)
3685
+ { updateHeightsInViewport(cm); }
3686
+ updateScrollbarsInner(cm, measureForScrollbars(cm));
3687
+ startWidth = cm.display.barWidth; startHeight = cm.display.barHeight;
3688
+ }
3689
+ }
3690
+
3691
+ // Re-synchronize the fake scrollbars with the actual size of the
3692
+ // content.
3693
+ function updateScrollbarsInner(cm, measure) {
3694
+ var d = cm.display;
3695
+ var sizes = d.scrollbars.update(measure);
3696
+
3697
+ d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px";
3698
+ d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px";
3699
+ d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent";
3700
+
3701
+ if (sizes.right && sizes.bottom) {
3702
+ d.scrollbarFiller.style.display = "block";
3703
+ d.scrollbarFiller.style.height = sizes.bottom + "px";
3704
+ d.scrollbarFiller.style.width = sizes.right + "px";
3705
+ } else { d.scrollbarFiller.style.display = ""; }
3706
+ if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {
3707
+ d.gutterFiller.style.display = "block";
3708
+ d.gutterFiller.style.height = sizes.bottom + "px";
3709
+ d.gutterFiller.style.width = measure.gutterWidth + "px";
3710
+ } else { d.gutterFiller.style.display = ""; }
3711
+ }
3712
+
3713
+ var scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars};
3714
+
3715
+ function initScrollbars(cm) {
3716
+ if (cm.display.scrollbars) {
3717
+ cm.display.scrollbars.clear();
3718
+ if (cm.display.scrollbars.addClass)
3719
+ { rmClass(cm.display.wrapper, cm.display.scrollbars.addClass); }
3720
+ }
3721
+
3722
+ cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](function (node) {
3723
+ cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller);
3724
+ // Prevent clicks in the scrollbars from killing focus
3725
+ on(node, "mousedown", function () {
3726
+ if (cm.state.focused) { setTimeout(function () { return cm.display.input.focus(); }, 0); }
3727
+ });
3728
+ node.setAttribute("cm-not-content", "true");
3729
+ }, function (pos, axis) {
3730
+ if (axis == "horizontal") { setScrollLeft(cm, pos); }
3731
+ else { updateScrollTop(cm, pos); }
3732
+ }, cm);
3733
+ if (cm.display.scrollbars.addClass)
3734
+ { addClass(cm.display.wrapper, cm.display.scrollbars.addClass); }
3735
+ }
3736
+
3737
+ // Operations are used to wrap a series of changes to the editor
3738
+ // state in such a way that each change won't have to update the
3739
+ // cursor and display (which would be awkward, slow, and
3740
+ // error-prone). Instead, display updates are batched and then all
3741
+ // combined and executed at once.
3742
+
3743
+ var nextOpId = 0;
3744
+ // Start a new operation.
3745
+ function startOperation(cm) {
3746
+ cm.curOp = {
3747
+ cm: cm,
3748
+ viewChanged: false, // Flag that indicates that lines might need to be redrawn
3749
+ startHeight: cm.doc.height, // Used to detect need to update scrollbar
3750
+ forceUpdate: false, // Used to force a redraw
3751
+ updateInput: 0, // Whether to reset the input textarea
3752
+ typing: false, // Whether this reset should be careful to leave existing text (for compositing)
3753
+ changeObjs: null, // Accumulated changes, for firing change events
3754
+ cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on
3755
+ cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already
3756
+ selectionChanged: false, // Whether the selection needs to be redrawn
3757
+ updateMaxLine: false, // Set when the widest line needs to be determined anew
3758
+ scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet
3759
+ scrollToPos: null, // Used to scroll to a specific position
3760
+ focus: false,
3761
+ id: ++nextOpId // Unique ID
3762
+ };
3763
+ pushOperation(cm.curOp);
3764
+ }
3765
+
3766
+ // Finish an operation, updating the display and signalling delayed events
3767
+ function endOperation(cm) {
3768
+ var op = cm.curOp;
3769
+ if (op) { finishOperation(op, function (group) {
3770
+ for (var i = 0; i < group.ops.length; i++)
3771
+ { group.ops[i].cm.curOp = null; }
3772
+ endOperations(group);
3773
+ }); }
3774
+ }
3775
+
3776
+ // The DOM updates done when an operation finishes are batched so
3777
+ // that the minimum number of relayouts are required.
3778
+ function endOperations(group) {
3779
+ var ops = group.ops;
3780
+ for (var i = 0; i < ops.length; i++) // Read DOM
3781
+ { endOperation_R1(ops[i]); }
3782
+ for (var i$1 = 0; i$1 < ops.length; i$1++) // Write DOM (maybe)
3783
+ { endOperation_W1(ops[i$1]); }
3784
+ for (var i$2 = 0; i$2 < ops.length; i$2++) // Read DOM
3785
+ { endOperation_R2(ops[i$2]); }
3786
+ for (var i$3 = 0; i$3 < ops.length; i$3++) // Write DOM (maybe)
3787
+ { endOperation_W2(ops[i$3]); }
3788
+ for (var i$4 = 0; i$4 < ops.length; i$4++) // Read DOM
3789
+ { endOperation_finish(ops[i$4]); }
3790
+ }
3791
+
3792
+ function endOperation_R1(op) {
3793
+ var cm = op.cm, display = cm.display;
3794
+ maybeClipScrollbars(cm);
3795
+ if (op.updateMaxLine) { findMaxLine(cm); }
3796
+
3797
+ op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||
3798
+ op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||
3799
+ op.scrollToPos.to.line >= display.viewTo) ||
3800
+ display.maxLineChanged && cm.options.lineWrapping;
3801
+ op.update = op.mustUpdate &&
3802
+ new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate);
3803
+ }
3804
+
3805
+ function endOperation_W1(op) {
3806
+ op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update);
3807
+ }
3808
+
3809
+ function endOperation_R2(op) {
3810
+ var cm = op.cm, display = cm.display;
3811
+ if (op.updatedDisplay) { updateHeightsInViewport(cm); }
3812
+
3813
+ op.barMeasure = measureForScrollbars(cm);
3814
+
3815
+ // If the max line changed since it was last measured, measure it,
3816
+ // and ensure the document's width matches it.
3817
+ // updateDisplay_W2 will use these properties to do the actual resizing
3818
+ if (display.maxLineChanged && !cm.options.lineWrapping) {
3819
+ op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3;
3820
+ cm.display.sizerWidth = op.adjustWidthTo;
3821
+ op.barMeasure.scrollWidth =
3822
+ Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth);
3823
+ op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm));
3824
+ }
3825
+
3826
+ if (op.updatedDisplay || op.selectionChanged)
3827
+ { op.preparedSelection = display.input.prepareSelection(); }
3828
+ }
3829
+
3830
+ function endOperation_W2(op) {
3831
+ var cm = op.cm;
3832
+
3833
+ if (op.adjustWidthTo != null) {
3834
+ cm.display.sizer.style.minWidth = op.adjustWidthTo + "px";
3835
+ if (op.maxScrollLeft < cm.doc.scrollLeft)
3836
+ { setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true); }
3837
+ cm.display.maxLineChanged = false;
3838
+ }
3839
+
3840
+ var takeFocus = op.focus && op.focus == activeElt();
3841
+ if (op.preparedSelection)
3842
+ { cm.display.input.showSelection(op.preparedSelection, takeFocus); }
3843
+ if (op.updatedDisplay || op.startHeight != cm.doc.height)
3844
+ { updateScrollbars(cm, op.barMeasure); }
3845
+ if (op.updatedDisplay)
3846
+ { setDocumentHeight(cm, op.barMeasure); }
3847
+
3848
+ if (op.selectionChanged) { restartBlink(cm); }
3849
+
3850
+ if (cm.state.focused && op.updateInput)
3851
+ { cm.display.input.reset(op.typing); }
3852
+ if (takeFocus) { ensureFocus(op.cm); }
3853
+ }
3854
+
3855
+ function endOperation_finish(op) {
3856
+ var cm = op.cm, display = cm.display, doc = cm.doc;
3857
+
3858
+ if (op.updatedDisplay) { postUpdateDisplay(cm, op.update); }
3859
+
3860
+ // Abort mouse wheel delta measurement, when scrolling explicitly
3861
+ if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))
3862
+ { display.wheelStartX = display.wheelStartY = null; }
3863
+
3864
+ // Propagate the scroll position to the actual DOM scroller
3865
+ if (op.scrollTop != null) { setScrollTop(cm, op.scrollTop, op.forceScroll); }
3866
+
3867
+ if (op.scrollLeft != null) { setScrollLeft(cm, op.scrollLeft, true, true); }
3868
+ // If we need to scroll a specific position into view, do so.
3869
+ if (op.scrollToPos) {
3870
+ var rect = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),
3871
+ clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin);
3872
+ maybeScrollWindow(cm, rect);
3873
+ }
3874
+
3875
+ // Fire events for markers that are hidden/unidden by editing or
3876
+ // undoing
3877
+ var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers;
3878
+ if (hidden) { for (var i = 0; i < hidden.length; ++i)
3879
+ { if (!hidden[i].lines.length) { signal(hidden[i], "hide"); } } }
3880
+ if (unhidden) { for (var i$1 = 0; i$1 < unhidden.length; ++i$1)
3881
+ { if (unhidden[i$1].lines.length) { signal(unhidden[i$1], "unhide"); } } }
3882
+
3883
+ if (display.wrapper.offsetHeight)
3884
+ { doc.scrollTop = cm.display.scroller.scrollTop; }
3885
+
3886
+ // Fire change events, and delayed event handlers
3887
+ if (op.changeObjs)
3888
+ { signal(cm, "changes", cm, op.changeObjs); }
3889
+ if (op.update)
3890
+ { op.update.finish(); }
3891
+ }
3892
+
3893
+ // Run the given function in an operation
3894
+ function runInOp(cm, f) {
3895
+ if (cm.curOp) { return f() }
3896
+ startOperation(cm);
3897
+ try { return f() }
3898
+ finally { endOperation(cm); }
3899
+ }
3900
+ // Wraps a function in an operation. Returns the wrapped function.
3901
+ function operation(cm, f) {
3902
+ return function() {
3903
+ if (cm.curOp) { return f.apply(cm, arguments) }
3904
+ startOperation(cm);
3905
+ try { return f.apply(cm, arguments) }
3906
+ finally { endOperation(cm); }
3907
+ }
3908
+ }
3909
+ // Used to add methods to editor and doc instances, wrapping them in
3910
+ // operations.
3911
+ function methodOp(f) {
3912
+ return function() {
3913
+ if (this.curOp) { return f.apply(this, arguments) }
3914
+ startOperation(this);
3915
+ try { return f.apply(this, arguments) }
3916
+ finally { endOperation(this); }
3917
+ }
3918
+ }
3919
+ function docMethodOp(f) {
3920
+ return function() {
3921
+ var cm = this.cm;
3922
+ if (!cm || cm.curOp) { return f.apply(this, arguments) }
3923
+ startOperation(cm);
3924
+ try { return f.apply(this, arguments) }
3925
+ finally { endOperation(cm); }
3926
+ }
3927
+ }
3928
+
3929
+ // Updates the display.view data structure for a given change to the
3930
+ // document. From and to are in pre-change coordinates. Lendiff is
3931
+ // the amount of lines added or subtracted by the change. This is
3932
+ // used for changes that span multiple lines, or change the way
3933
+ // lines are divided into visual lines. regLineChange (below)
3934
+ // registers single-line changes.
3935
+ function regChange(cm, from, to, lendiff) {
3936
+ if (from == null) { from = cm.doc.first; }
3937
+ if (to == null) { to = cm.doc.first + cm.doc.size; }
3938
+ if (!lendiff) { lendiff = 0; }
3939
+
3940
+ var display = cm.display;
3941
+ if (lendiff && to < display.viewTo &&
3942
+ (display.updateLineNumbers == null || display.updateLineNumbers > from))
3943
+ { display.updateLineNumbers = from; }
3944
+
3945
+ cm.curOp.viewChanged = true;
3946
+
3947
+ if (from >= display.viewTo) { // Change after
3948
+ if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)
3949
+ { resetView(cm); }
3950
+ } else if (to <= display.viewFrom) { // Change before
3951
+ if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {
3952
+ resetView(cm);
3953
+ } else {
3954
+ display.viewFrom += lendiff;
3955
+ display.viewTo += lendiff;
3956
+ }
3957
+ } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap
3958
+ resetView(cm);
3959
+ } else if (from <= display.viewFrom) { // Top overlap
3960
+ var cut = viewCuttingPoint(cm, to, to + lendiff, 1);
3961
+ if (cut) {
3962
+ display.view = display.view.slice(cut.index);
3963
+ display.viewFrom = cut.lineN;
3964
+ display.viewTo += lendiff;
3965
+ } else {
3966
+ resetView(cm);
3967
+ }
3968
+ } else if (to >= display.viewTo) { // Bottom overlap
3969
+ var cut$1 = viewCuttingPoint(cm, from, from, -1);
3970
+ if (cut$1) {
3971
+ display.view = display.view.slice(0, cut$1.index);
3972
+ display.viewTo = cut$1.lineN;
3973
+ } else {
3974
+ resetView(cm);
3975
+ }
3976
+ } else { // Gap in the middle
3977
+ var cutTop = viewCuttingPoint(cm, from, from, -1);
3978
+ var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1);
3979
+ if (cutTop && cutBot) {
3980
+ display.view = display.view.slice(0, cutTop.index)
3981
+ .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))
3982
+ .concat(display.view.slice(cutBot.index));
3983
+ display.viewTo += lendiff;
3984
+ } else {
3985
+ resetView(cm);
3986
+ }
3987
+ }
3988
+
3989
+ var ext = display.externalMeasured;
3990
+ if (ext) {
3991
+ if (to < ext.lineN)
3992
+ { ext.lineN += lendiff; }
3993
+ else if (from < ext.lineN + ext.size)
3994
+ { display.externalMeasured = null; }
3995
+ }
3996
+ }
3997
+
3998
+ // Register a change to a single line. Type must be one of "text",
3999
+ // "gutter", "class", "widget"
4000
+ function regLineChange(cm, line, type) {
4001
+ cm.curOp.viewChanged = true;
4002
+ var display = cm.display, ext = cm.display.externalMeasured;
4003
+ if (ext && line >= ext.lineN && line < ext.lineN + ext.size)
4004
+ { display.externalMeasured = null; }
4005
+
4006
+ if (line < display.viewFrom || line >= display.viewTo) { return }
4007
+ var lineView = display.view[findViewIndex(cm, line)];
4008
+ if (lineView.node == null) { return }
4009
+ var arr = lineView.changes || (lineView.changes = []);
4010
+ if (indexOf(arr, type) == -1) { arr.push(type); }
4011
+ }
4012
+
4013
+ // Clear the view.
4014
+ function resetView(cm) {
4015
+ cm.display.viewFrom = cm.display.viewTo = cm.doc.first;
4016
+ cm.display.view = [];
4017
+ cm.display.viewOffset = 0;
4018
+ }
4019
+
4020
+ function viewCuttingPoint(cm, oldN, newN, dir) {
4021
+ var index = findViewIndex(cm, oldN), diff, view = cm.display.view;
4022
+ if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)
4023
+ { return {index: index, lineN: newN} }
4024
+ var n = cm.display.viewFrom;
4025
+ for (var i = 0; i < index; i++)
4026
+ { n += view[i].size; }
4027
+ if (n != oldN) {
4028
+ if (dir > 0) {
4029
+ if (index == view.length - 1) { return null }
4030
+ diff = (n + view[index].size) - oldN;
4031
+ index++;
4032
+ } else {
4033
+ diff = n - oldN;
4034
+ }
4035
+ oldN += diff; newN += diff;
4036
+ }
4037
+ while (visualLineNo(cm.doc, newN) != newN) {
4038
+ if (index == (dir < 0 ? 0 : view.length - 1)) { return null }
4039
+ newN += dir * view[index - (dir < 0 ? 1 : 0)].size;
4040
+ index += dir;
4041
+ }
4042
+ return {index: index, lineN: newN}
4043
+ }
4044
+
4045
+ // Force the view to cover a given range, adding empty view element
4046
+ // or clipping off existing ones as needed.
4047
+ function adjustView(cm, from, to) {
4048
+ var display = cm.display, view = display.view;
4049
+ if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {
4050
+ display.view = buildViewArray(cm, from, to);
4051
+ display.viewFrom = from;
4052
+ } else {
4053
+ if (display.viewFrom > from)
4054
+ { display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view); }
4055
+ else if (display.viewFrom < from)
4056
+ { display.view = display.view.slice(findViewIndex(cm, from)); }
4057
+ display.viewFrom = from;
4058
+ if (display.viewTo < to)
4059
+ { display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)); }
4060
+ else if (display.viewTo > to)
4061
+ { display.view = display.view.slice(0, findViewIndex(cm, to)); }
4062
+ }
4063
+ display.viewTo = to;
4064
+ }
4065
+
4066
+ // Count the number of lines in the view whose DOM representation is
4067
+ // out of date (or nonexistent).
4068
+ function countDirtyView(cm) {
4069
+ var view = cm.display.view, dirty = 0;
4070
+ for (var i = 0; i < view.length; i++) {
4071
+ var lineView = view[i];
4072
+ if (!lineView.hidden && (!lineView.node || lineView.changes)) { ++dirty; }
4073
+ }
4074
+ return dirty
4075
+ }
4076
+
4077
+ // HIGHLIGHT WORKER
4078
+
4079
+ function startWorker(cm, time) {
4080
+ if (cm.doc.highlightFrontier < cm.display.viewTo)
4081
+ { cm.state.highlight.set(time, bind(highlightWorker, cm)); }
4082
+ }
4083
+
4084
+ function highlightWorker(cm) {
4085
+ var doc = cm.doc;
4086
+ if (doc.highlightFrontier >= cm.display.viewTo) { return }
4087
+ var end = +new Date + cm.options.workTime;
4088
+ var context = getContextBefore(cm, doc.highlightFrontier);
4089
+ var changedLines = [];
4090
+
4091
+ doc.iter(context.line, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) {
4092
+ if (context.line >= cm.display.viewFrom) { // Visible
4093
+ var oldStyles = line.styles;
4094
+ var resetState = line.text.length > cm.options.maxHighlightLength ? copyState(doc.mode, context.state) : null;
4095
+ var highlighted = highlightLine(cm, line, context, true);
4096
+ if (resetState) { context.state = resetState; }
4097
+ line.styles = highlighted.styles;
4098
+ var oldCls = line.styleClasses, newCls = highlighted.classes;
4099
+ if (newCls) { line.styleClasses = newCls; }
4100
+ else if (oldCls) { line.styleClasses = null; }
4101
+ var ischange = !oldStyles || oldStyles.length != line.styles.length ||
4102
+ oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass);
4103
+ for (var i = 0; !ischange && i < oldStyles.length; ++i) { ischange = oldStyles[i] != line.styles[i]; }
4104
+ if (ischange) { changedLines.push(context.line); }
4105
+ line.stateAfter = context.save();
4106
+ context.nextLine();
4107
+ } else {
4108
+ if (line.text.length <= cm.options.maxHighlightLength)
4109
+ { processLine(cm, line.text, context); }
4110
+ line.stateAfter = context.line % 5 == 0 ? context.save() : null;
4111
+ context.nextLine();
4112
+ }
4113
+ if (+new Date > end) {
4114
+ startWorker(cm, cm.options.workDelay);
4115
+ return true
4116
+ }
4117
+ });
4118
+ doc.highlightFrontier = context.line;
4119
+ doc.modeFrontier = Math.max(doc.modeFrontier, context.line);
4120
+ if (changedLines.length) { runInOp(cm, function () {
4121
+ for (var i = 0; i < changedLines.length; i++)
4122
+ { regLineChange(cm, changedLines[i], "text"); }
4123
+ }); }
4124
+ }
4125
+
4126
+ // DISPLAY DRAWING
4127
+
4128
+ var DisplayUpdate = function(cm, viewport, force) {
4129
+ var display = cm.display;
4130
+
4131
+ this.viewport = viewport;
4132
+ // Store some values that we'll need later (but don't want to force a relayout for)
4133
+ this.visible = visibleLines(display, cm.doc, viewport);
4134
+ this.editorIsHidden = !display.wrapper.offsetWidth;
4135
+ this.wrapperHeight = display.wrapper.clientHeight;
4136
+ this.wrapperWidth = display.wrapper.clientWidth;
4137
+ this.oldDisplayWidth = displayWidth(cm);
4138
+ this.force = force;
4139
+ this.dims = getDimensions(cm);
4140
+ this.events = [];
4141
+ };
4142
+
4143
+ DisplayUpdate.prototype.signal = function (emitter, type) {
4144
+ if (hasHandler(emitter, type))
4145
+ { this.events.push(arguments); }
4146
+ };
4147
+ DisplayUpdate.prototype.finish = function () {
4148
+ var this$1 = this;
4149
+
4150
+ for (var i = 0; i < this.events.length; i++)
4151
+ { signal.apply(null, this$1.events[i]); }
4152
+ };
4153
+
4154
+ function maybeClipScrollbars(cm) {
4155
+ var display = cm.display;
4156
+ if (!display.scrollbarsClipped && display.scroller.offsetWidth) {
4157
+ display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth;
4158
+ display.heightForcer.style.height = scrollGap(cm) + "px";
4159
+ display.sizer.style.marginBottom = -display.nativeBarWidth + "px";
4160
+ display.sizer.style.borderRightWidth = scrollGap(cm) + "px";
4161
+ display.scrollbarsClipped = true;
4162
+ }
4163
+ }
4164
+
4165
+ function selectionSnapshot(cm) {
4166
+ if (cm.hasFocus()) { return null }
4167
+ var active = activeElt();
4168
+ if (!active || !contains(cm.display.lineDiv, active)) { return null }
4169
+ var result = {activeElt: active};
4170
+ if (window.getSelection) {
4171
+ var sel = window.getSelection();
4172
+ if (sel.anchorNode && sel.extend && contains(cm.display.lineDiv, sel.anchorNode)) {
4173
+ result.anchorNode = sel.anchorNode;
4174
+ result.anchorOffset = sel.anchorOffset;
4175
+ result.focusNode = sel.focusNode;
4176
+ result.focusOffset = sel.focusOffset;
4177
+ }
4178
+ }
4179
+ return result
4180
+ }
4181
+
4182
+ function restoreSelection(snapshot) {
4183
+ if (!snapshot || !snapshot.activeElt || snapshot.activeElt == activeElt()) { return }
4184
+ snapshot.activeElt.focus();
4185
+ if (snapshot.anchorNode && contains(document.body, snapshot.anchorNode) && contains(document.body, snapshot.focusNode)) {
4186
+ var sel = window.getSelection(), range$$1 = document.createRange();
4187
+ range$$1.setEnd(snapshot.anchorNode, snapshot.anchorOffset);
4188
+ range$$1.collapse(false);
4189
+ sel.removeAllRanges();
4190
+ sel.addRange(range$$1);
4191
+ sel.extend(snapshot.focusNode, snapshot.focusOffset);
4192
+ }
4193
+ }
4194
+
4195
+ // Does the actual updating of the line display. Bails out
4196
+ // (returning false) when there is nothing to be done and forced is
4197
+ // false.
4198
+ function updateDisplayIfNeeded(cm, update) {
4199
+ var display = cm.display, doc = cm.doc;
4200
+
4201
+ if (update.editorIsHidden) {
4202
+ resetView(cm);
4203
+ return false
4204
+ }
4205
+
4206
+ // Bail out if the visible area is already rendered and nothing changed.
4207
+ if (!update.force &&
4208
+ update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&
4209
+ (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&
4210
+ display.renderedView == display.view && countDirtyView(cm) == 0)
4211
+ { return false }
4212
+
4213
+ if (maybeUpdateLineNumberWidth(cm)) {
4214
+ resetView(cm);
4215
+ update.dims = getDimensions(cm);
4216
+ }
4217
+
4218
+ // Compute a suitable new viewport (from & to)
4219
+ var end = doc.first + doc.size;
4220
+ var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first);
4221
+ var to = Math.min(end, update.visible.to + cm.options.viewportMargin);
4222
+ if (display.viewFrom < from && from - display.viewFrom < 20) { from = Math.max(doc.first, display.viewFrom); }
4223
+ if (display.viewTo > to && display.viewTo - to < 20) { to = Math.min(end, display.viewTo); }
4224
+ if (sawCollapsedSpans) {
4225
+ from = visualLineNo(cm.doc, from);
4226
+ to = visualLineEndNo(cm.doc, to);
4227
+ }
4228
+
4229
+ var different = from != display.viewFrom || to != display.viewTo ||
4230
+ display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth;
4231
+ adjustView(cm, from, to);
4232
+
4233
+ display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom));
4234
+ // Position the mover div to align with the current scroll position
4235
+ cm.display.mover.style.top = display.viewOffset + "px";
4236
+
4237
+ var toUpdate = countDirtyView(cm);
4238
+ if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&
4239
+ (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))
4240
+ { return false }
4241
+
4242
+ // For big changes, we hide the enclosing element during the
4243
+ // update, since that speeds up the operations on most browsers.
4244
+ var selSnapshot = selectionSnapshot(cm);
4245
+ if (toUpdate > 4) { display.lineDiv.style.display = "none"; }
4246
+ patchDisplay(cm, display.updateLineNumbers, update.dims);
4247
+ if (toUpdate > 4) { display.lineDiv.style.display = ""; }
4248
+ display.renderedView = display.view;
4249
+ // There might have been a widget with a focused element that got
4250
+ // hidden or updated, if so re-focus it.
4251
+ restoreSelection(selSnapshot);
4252
+
4253
+ // Prevent selection and cursors from interfering with the scroll
4254
+ // width and height.
4255
+ removeChildren(display.cursorDiv);
4256
+ removeChildren(display.selectionDiv);
4257
+ display.gutters.style.height = display.sizer.style.minHeight = 0;
4258
+
4259
+ if (different) {
4260
+ display.lastWrapHeight = update.wrapperHeight;
4261
+ display.lastWrapWidth = update.wrapperWidth;
4262
+ startWorker(cm, 400);
4263
+ }
4264
+
4265
+ display.updateLineNumbers = null;
4266
+
4267
+ return true
4268
+ }
4269
+
4270
+ function postUpdateDisplay(cm, update) {
4271
+ var viewport = update.viewport;
4272
+
4273
+ for (var first = true;; first = false) {
4274
+ if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {
4275
+ // Clip forced viewport to actual scrollable area.
4276
+ if (viewport && viewport.top != null)
4277
+ { viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)}; }
4278
+ // Updated line heights might result in the drawn area not
4279
+ // actually covering the viewport. Keep looping until it does.
4280
+ update.visible = visibleLines(cm.display, cm.doc, viewport);
4281
+ if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)
4282
+ { break }
4283
+ }
4284
+ if (!updateDisplayIfNeeded(cm, update)) { break }
4285
+ updateHeightsInViewport(cm);
4286
+ var barMeasure = measureForScrollbars(cm);
4287
+ updateSelection(cm);
4288
+ updateScrollbars(cm, barMeasure);
4289
+ setDocumentHeight(cm, barMeasure);
4290
+ update.force = false;
4291
+ }
4292
+
4293
+ update.signal(cm, "update", cm);
4294
+ if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {
4295
+ update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo);
4296
+ cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo;
4297
+ }
4298
+ }
4299
+
4300
+ function updateDisplaySimple(cm, viewport) {
4301
+ var update = new DisplayUpdate(cm, viewport);
4302
+ if (updateDisplayIfNeeded(cm, update)) {
4303
+ updateHeightsInViewport(cm);
4304
+ postUpdateDisplay(cm, update);
4305
+ var barMeasure = measureForScrollbars(cm);
4306
+ updateSelection(cm);
4307
+ updateScrollbars(cm, barMeasure);
4308
+ setDocumentHeight(cm, barMeasure);
4309
+ update.finish();
4310
+ }
4311
+ }
4312
+
4313
+ // Sync the actual display DOM structure with display.view, removing
4314
+ // nodes for lines that are no longer in view, and creating the ones
4315
+ // that are not there yet, and updating the ones that are out of
4316
+ // date.
4317
+ function patchDisplay(cm, updateNumbersFrom, dims) {
4318
+ var display = cm.display, lineNumbers = cm.options.lineNumbers;
4319
+ var container = display.lineDiv, cur = container.firstChild;
4320
+
4321
+ function rm(node) {
4322
+ var next = node.nextSibling;
4323
+ // Works around a throw-scroll bug in OS X Webkit
4324
+ if (webkit && mac && cm.display.currentWheelTarget == node)
4325
+ { node.style.display = "none"; }
4326
+ else
4327
+ { node.parentNode.removeChild(node); }
4328
+ return next
4329
+ }
4330
+
4331
+ var view = display.view, lineN = display.viewFrom;
4332
+ // Loop over the elements in the view, syncing cur (the DOM nodes
4333
+ // in display.lineDiv) with the view as we go.
4334
+ for (var i = 0; i < view.length; i++) {
4335
+ var lineView = view[i];
4336
+ if (lineView.hidden) ; else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet
4337
+ var node = buildLineElement(cm, lineView, lineN, dims);
4338
+ container.insertBefore(node, cur);
4339
+ } else { // Already drawn
4340
+ while (cur != lineView.node) { cur = rm(cur); }
4341
+ var updateNumber = lineNumbers && updateNumbersFrom != null &&
4342
+ updateNumbersFrom <= lineN && lineView.lineNumber;
4343
+ if (lineView.changes) {
4344
+ if (indexOf(lineView.changes, "gutter") > -1) { updateNumber = false; }
4345
+ updateLineForChanges(cm, lineView, lineN, dims);
4346
+ }
4347
+ if (updateNumber) {
4348
+ removeChildren(lineView.lineNumber);
4349
+ lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)));
4350
+ }
4351
+ cur = lineView.node.nextSibling;
4352
+ }
4353
+ lineN += lineView.size;
4354
+ }
4355
+ while (cur) { cur = rm(cur); }
4356
+ }
4357
+
4358
+ function updateGutterSpace(cm) {
4359
+ var width = cm.display.gutters.offsetWidth;
4360
+ cm.display.sizer.style.marginLeft = width + "px";
4361
+ }
4362
+
4363
+ function setDocumentHeight(cm, measure) {
4364
+ cm.display.sizer.style.minHeight = measure.docHeight + "px";
4365
+ cm.display.heightForcer.style.top = measure.docHeight + "px";
4366
+ cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "px";
4367
+ }
4368
+
4369
+ // Rebuild the gutter elements, ensure the margin to the left of the
4370
+ // code matches their width.
4371
+ function updateGutters(cm) {
4372
+ var gutters = cm.display.gutters, specs = cm.options.gutters;
4373
+ removeChildren(gutters);
4374
+ var i = 0;
4375
+ for (; i < specs.length; ++i) {
4376
+ var gutterClass = specs[i];
4377
+ var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass));
4378
+ if (gutterClass == "CodeMirror-linenumbers") {
4379
+ cm.display.lineGutter = gElt;
4380
+ gElt.style.width = (cm.display.lineNumWidth || 1) + "px";
4381
+ }
4382
+ }
4383
+ gutters.style.display = i ? "" : "none";
4384
+ updateGutterSpace(cm);
4385
+ }
4386
+
4387
+ // Make sure the gutters options contains the element
4388
+ // "CodeMirror-linenumbers" when the lineNumbers option is true.
4389
+ function setGuttersForLineNumbers(options) {
4390
+ var found = indexOf(options.gutters, "CodeMirror-linenumbers");
4391
+ if (found == -1 && options.lineNumbers) {
4392
+ options.gutters = options.gutters.concat(["CodeMirror-linenumbers"]);
4393
+ } else if (found > -1 && !options.lineNumbers) {
4394
+ options.gutters = options.gutters.slice(0);
4395
+ options.gutters.splice(found, 1);
4396
+ }
4397
+ }
4398
+
4399
+ // Since the delta values reported on mouse wheel events are
4400
+ // unstandardized between browsers and even browser versions, and
4401
+ // generally horribly unpredictable, this code starts by measuring
4402
+ // the scroll effect that the first few mouse wheel events have,
4403
+ // and, from that, detects the way it can convert deltas to pixel
4404
+ // offsets afterwards.
4405
+ //
4406
+ // The reason we want to know the amount a wheel event will scroll
4407
+ // is that it gives us a chance to update the display before the
4408
+ // actual scrolling happens, reducing flickering.
4409
+
4410
+ var wheelSamples = 0, wheelPixelsPerUnit = null;
4411
+ // Fill in a browser-detected starting value on browsers where we
4412
+ // know one. These don't have to be accurate -- the result of them
4413
+ // being wrong would just be a slight flicker on the first wheel
4414
+ // scroll (if it is large enough).
4415
+ if (ie) { wheelPixelsPerUnit = -.53; }
4416
+ else if (gecko) { wheelPixelsPerUnit = 15; }
4417
+ else if (chrome) { wheelPixelsPerUnit = -.7; }
4418
+ else if (safari) { wheelPixelsPerUnit = -1/3; }
4419
+
4420
+ function wheelEventDelta(e) {
4421
+ var dx = e.wheelDeltaX, dy = e.wheelDeltaY;
4422
+ if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) { dx = e.detail; }
4423
+ if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) { dy = e.detail; }
4424
+ else if (dy == null) { dy = e.wheelDelta; }
4425
+ return {x: dx, y: dy}
4426
+ }
4427
+ function wheelEventPixels(e) {
4428
+ var delta = wheelEventDelta(e);
4429
+ delta.x *= wheelPixelsPerUnit;
4430
+ delta.y *= wheelPixelsPerUnit;
4431
+ return delta
4432
+ }
4433
+
4434
+ function onScrollWheel(cm, e) {
4435
+ var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y;
4436
+
4437
+ var display = cm.display, scroll = display.scroller;
4438
+ // Quit if there's nothing to scroll here
4439
+ var canScrollX = scroll.scrollWidth > scroll.clientWidth;
4440
+ var canScrollY = scroll.scrollHeight > scroll.clientHeight;
4441
+ if (!(dx && canScrollX || dy && canScrollY)) { return }
4442
+
4443
+ // Webkit browsers on OS X abort momentum scrolls when the target
4444
+ // of the scroll event is removed from the scrollable element.
4445
+ // This hack (see related code in patchDisplay) makes sure the
4446
+ // element is kept around.
4447
+ if (dy && mac && webkit) {
4448
+ outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {
4449
+ for (var i = 0; i < view.length; i++) {
4450
+ if (view[i].node == cur) {
4451
+ cm.display.currentWheelTarget = cur;
4452
+ break outer
4453
+ }
4454
+ }
4455
+ }
4456
+ }
4457
+
4458
+ // On some browsers, horizontal scrolling will cause redraws to
4459
+ // happen before the gutter has been realigned, causing it to
4460
+ // wriggle around in a most unseemly way. When we have an
4461
+ // estimated pixels/delta value, we just handle horizontal
4462
+ // scrolling entirely here. It'll be slightly off from native, but
4463
+ // better than glitching out.
4464
+ if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {
4465
+ if (dy && canScrollY)
4466
+ { updateScrollTop(cm, Math.max(0, scroll.scrollTop + dy * wheelPixelsPerUnit)); }
4467
+ setScrollLeft(cm, Math.max(0, scroll.scrollLeft + dx * wheelPixelsPerUnit));
4468
+ // Only prevent default scrolling if vertical scrolling is
4469
+ // actually possible. Otherwise, it causes vertical scroll
4470
+ // jitter on OSX trackpads when deltaX is small and deltaY
4471
+ // is large (issue #3579)
4472
+ if (!dy || (dy && canScrollY))
4473
+ { e_preventDefault(e); }
4474
+ display.wheelStartX = null; // Abort measurement, if in progress
4475
+ return
4476
+ }
4477
+
4478
+ // 'Project' the visible viewport to cover the area that is being
4479
+ // scrolled into view (if we know enough to estimate it).
4480
+ if (dy && wheelPixelsPerUnit != null) {
4481
+ var pixels = dy * wheelPixelsPerUnit;
4482
+ var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight;
4483
+ if (pixels < 0) { top = Math.max(0, top + pixels - 50); }
4484
+ else { bot = Math.min(cm.doc.height, bot + pixels + 50); }
4485
+ updateDisplaySimple(cm, {top: top, bottom: bot});
4486
+ }
4487
+
4488
+ if (wheelSamples < 20) {
4489
+ if (display.wheelStartX == null) {
4490
+ display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop;
4491
+ display.wheelDX = dx; display.wheelDY = dy;
4492
+ setTimeout(function () {
4493
+ if (display.wheelStartX == null) { return }
4494
+ var movedX = scroll.scrollLeft - display.wheelStartX;
4495
+ var movedY = scroll.scrollTop - display.wheelStartY;
4496
+ var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||
4497
+ (movedX && display.wheelDX && movedX / display.wheelDX);
4498
+ display.wheelStartX = display.wheelStartY = null;
4499
+ if (!sample) { return }
4500
+ wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1);
4501
+ ++wheelSamples;
4502
+ }, 200);
4503
+ } else {
4504
+ display.wheelDX += dx; display.wheelDY += dy;
4505
+ }
4506
+ }
4507
+ }
4508
+
4509
+ // Selection objects are immutable. A new one is created every time
4510
+ // the selection changes. A selection is one or more non-overlapping
4511
+ // (and non-touching) ranges, sorted, and an integer that indicates
4512
+ // which one is the primary selection (the one that's scrolled into
4513
+ // view, that getCursor returns, etc).
4514
+ var Selection = function(ranges, primIndex) {
4515
+ this.ranges = ranges;
4516
+ this.primIndex = primIndex;
4517
+ };
4518
+
4519
+ Selection.prototype.primary = function () { return this.ranges[this.primIndex] };
4520
+
4521
+ Selection.prototype.equals = function (other) {
4522
+ var this$1 = this;
4523
+
4524
+ if (other == this) { return true }
4525
+ if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) { return false }
4526
+ for (var i = 0; i < this.ranges.length; i++) {
4527
+ var here = this$1.ranges[i], there = other.ranges[i];
4528
+ if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) { return false }
4529
+ }
4530
+ return true
4531
+ };
4532
+
4533
+ Selection.prototype.deepCopy = function () {
4534
+ var this$1 = this;
4535
+
4536
+ var out = [];
4537
+ for (var i = 0; i < this.ranges.length; i++)
4538
+ { out[i] = new Range(copyPos(this$1.ranges[i].anchor), copyPos(this$1.ranges[i].head)); }
4539
+ return new Selection(out, this.primIndex)
4540
+ };
4541
+
4542
+ Selection.prototype.somethingSelected = function () {
4543
+ var this$1 = this;
4544
+
4545
+ for (var i = 0; i < this.ranges.length; i++)
4546
+ { if (!this$1.ranges[i].empty()) { return true } }
4547
+ return false
4548
+ };
4549
+
4550
+ Selection.prototype.contains = function (pos, end) {
4551
+ var this$1 = this;
4552
+
4553
+ if (!end) { end = pos; }
4554
+ for (var i = 0; i < this.ranges.length; i++) {
4555
+ var range = this$1.ranges[i];
4556
+ if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)
4557
+ { return i }
4558
+ }
4559
+ return -1
4560
+ };
4561
+
4562
+ var Range = function(anchor, head) {
4563
+ this.anchor = anchor; this.head = head;
4564
+ };
4565
+
4566
+ Range.prototype.from = function () { return minPos(this.anchor, this.head) };
4567
+ Range.prototype.to = function () { return maxPos(this.anchor, this.head) };
4568
+ Range.prototype.empty = function () { return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch };
4569
+
4570
+ // Take an unsorted, potentially overlapping set of ranges, and
4571
+ // build a selection out of it. 'Consumes' ranges array (modifying
4572
+ // it).
4573
+ function normalizeSelection(cm, ranges, primIndex) {
4574
+ var mayTouch = cm && cm.options.selectionsMayTouch;
4575
+ var prim = ranges[primIndex];
4576
+ ranges.sort(function (a, b) { return cmp(a.from(), b.from()); });
4577
+ primIndex = indexOf(ranges, prim);
4578
+ for (var i = 1; i < ranges.length; i++) {
4579
+ var cur = ranges[i], prev = ranges[i - 1];
4580
+ var diff = cmp(prev.to(), cur.from());
4581
+ if (mayTouch && !cur.empty() ? diff > 0 : diff >= 0) {
4582
+ var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to());
4583
+ var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head;
4584
+ if (i <= primIndex) { --primIndex; }
4585
+ ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to));
4586
+ }
4587
+ }
4588
+ return new Selection(ranges, primIndex)
4589
+ }
4590
+
4591
+ function simpleSelection(anchor, head) {
4592
+ return new Selection([new Range(anchor, head || anchor)], 0)
4593
+ }
4594
+
4595
+ // Compute the position of the end of a change (its 'to' property
4596
+ // refers to the pre-change end).
4597
+ function changeEnd(change) {
4598
+ if (!change.text) { return change.to }
4599
+ return Pos(change.from.line + change.text.length - 1,
4600
+ lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0))
4601
+ }
4602
+
4603
+ // Adjust a position to refer to the post-change position of the
4604
+ // same text, or the end of the change if the change covers it.
4605
+ function adjustForChange(pos, change) {
4606
+ if (cmp(pos, change.from) < 0) { return pos }
4607
+ if (cmp(pos, change.to) <= 0) { return changeEnd(change) }
4608
+
4609
+ var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch;
4610
+ if (pos.line == change.to.line) { ch += changeEnd(change).ch - change.to.ch; }
4611
+ return Pos(line, ch)
4612
+ }
4613
+
4614
+ function computeSelAfterChange(doc, change) {
4615
+ var out = [];
4616
+ for (var i = 0; i < doc.sel.ranges.length; i++) {
4617
+ var range = doc.sel.ranges[i];
4618
+ out.push(new Range(adjustForChange(range.anchor, change),
4619
+ adjustForChange(range.head, change)));
4620
+ }
4621
+ return normalizeSelection(doc.cm, out, doc.sel.primIndex)
4622
+ }
4623
+
4624
+ function offsetPos(pos, old, nw) {
4625
+ if (pos.line == old.line)
4626
+ { return Pos(nw.line, pos.ch - old.ch + nw.ch) }
4627
+ else
4628
+ { return Pos(nw.line + (pos.line - old.line), pos.ch) }
4629
+ }
4630
+
4631
+ // Used by replaceSelections to allow moving the selection to the
4632
+ // start or around the replaced test. Hint may be "start" or "around".
4633
+ function computeReplacedSel(doc, changes, hint) {
4634
+ var out = [];
4635
+ var oldPrev = Pos(doc.first, 0), newPrev = oldPrev;
4636
+ for (var i = 0; i < changes.length; i++) {
4637
+ var change = changes[i];
4638
+ var from = offsetPos(change.from, oldPrev, newPrev);
4639
+ var to = offsetPos(changeEnd(change), oldPrev, newPrev);
4640
+ oldPrev = change.to;
4641
+ newPrev = to;
4642
+ if (hint == "around") {
4643
+ var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0;
4644
+ out[i] = new Range(inv ? to : from, inv ? from : to);
4645
+ } else {
4646
+ out[i] = new Range(from, from);
4647
+ }
4648
+ }
4649
+ return new Selection(out, doc.sel.primIndex)
4650
+ }
4651
+
4652
+ // Used to get the editor into a consistent state again when options change.
4653
+
4654
+ function loadMode(cm) {
4655
+ cm.doc.mode = getMode(cm.options, cm.doc.modeOption);
4656
+ resetModeState(cm);
4657
+ }
4658
+
4659
+ function resetModeState(cm) {
4660
+ cm.doc.iter(function (line) {
4661
+ if (line.stateAfter) { line.stateAfter = null; }
4662
+ if (line.styles) { line.styles = null; }
4663
+ });
4664
+ cm.doc.modeFrontier = cm.doc.highlightFrontier = cm.doc.first;
4665
+ startWorker(cm, 100);
4666
+ cm.state.modeGen++;
4667
+ if (cm.curOp) { regChange(cm); }
4668
+ }
4669
+
4670
+ // DOCUMENT DATA STRUCTURE
4671
+
4672
+ // By default, updates that start and end at the beginning of a line
4673
+ // are treated specially, in order to make the association of line
4674
+ // widgets and marker elements with the text behave more intuitive.
4675
+ function isWholeLineUpdate(doc, change) {
4676
+ return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" &&
4677
+ (!doc.cm || doc.cm.options.wholeLineUpdateBefore)
4678
+ }
4679
+
4680
+ // Perform a change on the document data structure.
4681
+ function updateDoc(doc, change, markedSpans, estimateHeight$$1) {
4682
+ function spansFor(n) {return markedSpans ? markedSpans[n] : null}
4683
+ function update(line, text, spans) {
4684
+ updateLine(line, text, spans, estimateHeight$$1);
4685
+ signalLater(line, "change", line, change);
4686
+ }
4687
+ function linesFor(start, end) {
4688
+ var result = [];
4689
+ for (var i = start; i < end; ++i)
4690
+ { result.push(new Line(text[i], spansFor(i), estimateHeight$$1)); }
4691
+ return result
4692
+ }
4693
+
4694
+ var from = change.from, to = change.to, text = change.text;
4695
+ var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line);
4696
+ var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line;
4697
+
4698
+ // Adjust the line structure
4699
+ if (change.full) {
4700
+ doc.insert(0, linesFor(0, text.length));
4701
+ doc.remove(text.length, doc.size - text.length);
4702
+ } else if (isWholeLineUpdate(doc, change)) {
4703
+ // This is a whole-line replace. Treated specially to make
4704
+ // sure line objects move the way they are supposed to.
4705
+ var added = linesFor(0, text.length - 1);
4706
+ update(lastLine, lastLine.text, lastSpans);
4707
+ if (nlines) { doc.remove(from.line, nlines); }
4708
+ if (added.length) { doc.insert(from.line, added); }
4709
+ } else if (firstLine == lastLine) {
4710
+ if (text.length == 1) {
4711
+ update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans);
4712
+ } else {
4713
+ var added$1 = linesFor(1, text.length - 1);
4714
+ added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight$$1));
4715
+ update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
4716
+ doc.insert(from.line + 1, added$1);
4717
+ }
4718
+ } else if (text.length == 1) {
4719
+ update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0));
4720
+ doc.remove(from.line + 1, nlines);
4721
+ } else {
4722
+ update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
4723
+ update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans);
4724
+ var added$2 = linesFor(1, text.length - 1);
4725
+ if (nlines > 1) { doc.remove(from.line + 1, nlines - 1); }
4726
+ doc.insert(from.line + 1, added$2);
4727
+ }
4728
+
4729
+ signalLater(doc, "change", doc, change);
4730
+ }
4731
+
4732
+ // Call f for all linked documents.
4733
+ function linkedDocs(doc, f, sharedHistOnly) {
4734
+ function propagate(doc, skip, sharedHist) {
4735
+ if (doc.linked) { for (var i = 0; i < doc.linked.length; ++i) {
4736
+ var rel = doc.linked[i];
4737
+ if (rel.doc == skip) { continue }
4738
+ var shared = sharedHist && rel.sharedHist;
4739
+ if (sharedHistOnly && !shared) { continue }
4740
+ f(rel.doc, shared);
4741
+ propagate(rel.doc, doc, shared);
4742
+ } }
4743
+ }
4744
+ propagate(doc, null, true);
4745
+ }
4746
+
4747
+ // Attach a document to an editor.
4748
+ function attachDoc(cm, doc) {
4749
+ if (doc.cm) { throw new Error("This document is already in use.") }
4750
+ cm.doc = doc;
4751
+ doc.cm = cm;
4752
+ estimateLineHeights(cm);
4753
+ loadMode(cm);
4754
+ setDirectionClass(cm);
4755
+ if (!cm.options.lineWrapping) { findMaxLine(cm); }
4756
+ cm.options.mode = doc.modeOption;
4757
+ regChange(cm);
4758
+ }
4759
+
4760
+ function setDirectionClass(cm) {
4761
+ (cm.doc.direction == "rtl" ? addClass : rmClass)(cm.display.lineDiv, "CodeMirror-rtl");
4762
+ }
4763
+
4764
+ function directionChanged(cm) {
4765
+ runInOp(cm, function () {
4766
+ setDirectionClass(cm);
4767
+ regChange(cm);
4768
+ });
4769
+ }
4770
+
4771
+ function History(startGen) {
4772
+ // Arrays of change events and selections. Doing something adds an
4773
+ // event to done and clears undo. Undoing moves events from done
4774
+ // to undone, redoing moves them in the other direction.
4775
+ this.done = []; this.undone = [];
4776
+ this.undoDepth = Infinity;
4777
+ // Used to track when changes can be merged into a single undo
4778
+ // event
4779
+ this.lastModTime = this.lastSelTime = 0;
4780
+ this.lastOp = this.lastSelOp = null;
4781
+ this.lastOrigin = this.lastSelOrigin = null;
4782
+ // Used by the isClean() method
4783
+ this.generation = this.maxGeneration = startGen || 1;
4784
+ }
4785
+
4786
+ // Create a history change event from an updateDoc-style change
4787
+ // object.
4788
+ function historyChangeFromChange(doc, change) {
4789
+ var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)};
4790
+ attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);
4791
+ linkedDocs(doc, function (doc) { return attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true);
4792
+ return histChange
4793
+ }
4794
+
4795
+ // Pop all selection events off the end of a history array. Stop at
4796
+ // a change event.
4797
+ function clearSelectionEvents(array) {
4798
+ while (array.length) {
4799
+ var last = lst(array);
4800
+ if (last.ranges) { array.pop(); }
4801
+ else { break }
4802
+ }
4803
+ }
4804
+
4805
+ // Find the top change event in the history. Pop off selection
4806
+ // events that are in the way.
4807
+ function lastChangeEvent(hist, force) {
4808
+ if (force) {
4809
+ clearSelectionEvents(hist.done);
4810
+ return lst(hist.done)
4811
+ } else if (hist.done.length && !lst(hist.done).ranges) {
4812
+ return lst(hist.done)
4813
+ } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {
4814
+ hist.done.pop();
4815
+ return lst(hist.done)
4816
+ }
4817
+ }
4818
+
4819
+ // Register a change in the history. Merges changes that are within
4820
+ // a single operation, or are close together with an origin that
4821
+ // allows merging (starting with "+") into a single event.
4822
+ function addChangeToHistory(doc, change, selAfter, opId) {
4823
+ var hist = doc.history;
4824
+ hist.undone.length = 0;
4825
+ var time = +new Date, cur;
4826
+ var last;
4827
+
4828
+ if ((hist.lastOp == opId ||
4829
+ hist.lastOrigin == change.origin && change.origin &&
4830
+ ((change.origin.charAt(0) == "+" && hist.lastModTime > time - (doc.cm ? doc.cm.options.historyEventDelay : 500)) ||
4831
+ change.origin.charAt(0) == "*")) &&
4832
+ (cur = lastChangeEvent(hist, hist.lastOp == opId))) {
4833
+ // Merge this change into the last event
4834
+ last = lst(cur.changes);
4835
+ if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {
4836
+ // Optimized case for simple insertion -- don't want to add
4837
+ // new changesets for every character typed
4838
+ last.to = changeEnd(change);
4839
+ } else {
4840
+ // Add new sub-event
4841
+ cur.changes.push(historyChangeFromChange(doc, change));
4842
+ }
4843
+ } else {
4844
+ // Can not be merged, start a new event.
4845
+ var before = lst(hist.done);
4846
+ if (!before || !before.ranges)
4847
+ { pushSelectionToHistory(doc.sel, hist.done); }
4848
+ cur = {changes: [historyChangeFromChange(doc, change)],
4849
+ generation: hist.generation};
4850
+ hist.done.push(cur);
4851
+ while (hist.done.length > hist.undoDepth) {
4852
+ hist.done.shift();
4853
+ if (!hist.done[0].ranges) { hist.done.shift(); }
4854
+ }
4855
+ }
4856
+ hist.done.push(selAfter);
4857
+ hist.generation = ++hist.maxGeneration;
4858
+ hist.lastModTime = hist.lastSelTime = time;
4859
+ hist.lastOp = hist.lastSelOp = opId;
4860
+ hist.lastOrigin = hist.lastSelOrigin = change.origin;
4861
+
4862
+ if (!last) { signal(doc, "historyAdded"); }
4863
+ }
4864
+
4865
+ function selectionEventCanBeMerged(doc, origin, prev, sel) {
4866
+ var ch = origin.charAt(0);
4867
+ return ch == "*" ||
4868
+ ch == "+" &&
4869
+ prev.ranges.length == sel.ranges.length &&
4870
+ prev.somethingSelected() == sel.somethingSelected() &&
4871
+ new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500)
4872
+ }
4873
+
4874
+ // Called whenever the selection changes, sets the new selection as
4875
+ // the pending selection in the history, and pushes the old pending
4876
+ // selection into the 'done' array when it was significantly
4877
+ // different (in number of selected ranges, emptiness, or time).
4878
+ function addSelectionToHistory(doc, sel, opId, options) {
4879
+ var hist = doc.history, origin = options && options.origin;
4880
+
4881
+ // A new event is started when the previous origin does not match
4882
+ // the current, or the origins don't allow matching. Origins
4883
+ // starting with * are always merged, those starting with + are
4884
+ // merged when similar and close together in time.
4885
+ if (opId == hist.lastSelOp ||
4886
+ (origin && hist.lastSelOrigin == origin &&
4887
+ (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||
4888
+ selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))
4889
+ { hist.done[hist.done.length - 1] = sel; }
4890
+ else
4891
+ { pushSelectionToHistory(sel, hist.done); }
4892
+
4893
+ hist.lastSelTime = +new Date;
4894
+ hist.lastSelOrigin = origin;
4895
+ hist.lastSelOp = opId;
4896
+ if (options && options.clearRedo !== false)
4897
+ { clearSelectionEvents(hist.undone); }
4898
+ }
4899
+
4900
+ function pushSelectionToHistory(sel, dest) {
4901
+ var top = lst(dest);
4902
+ if (!(top && top.ranges && top.equals(sel)))
4903
+ { dest.push(sel); }
4904
+ }
4905
+
4906
+ // Used to store marked span information in the history.
4907
+ function attachLocalSpans(doc, change, from, to) {
4908
+ var existing = change["spans_" + doc.id], n = 0;
4909
+ doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) {
4910
+ if (line.markedSpans)
4911
+ { (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans; }
4912
+ ++n;
4913
+ });
4914
+ }
4915
+
4916
+ // When un/re-doing restores text containing marked spans, those
4917
+ // that have been explicitly cleared should not be restored.
4918
+ function removeClearedSpans(spans) {
4919
+ if (!spans) { return null }
4920
+ var out;
4921
+ for (var i = 0; i < spans.length; ++i) {
4922
+ if (spans[i].marker.explicitlyCleared) { if (!out) { out = spans.slice(0, i); } }
4923
+ else if (out) { out.push(spans[i]); }
4924
+ }
4925
+ return !out ? spans : out.length ? out : null
4926
+ }
4927
+
4928
+ // Retrieve and filter the old marked spans stored in a change event.
4929
+ function getOldSpans(doc, change) {
4930
+ var found = change["spans_" + doc.id];
4931
+ if (!found) { return null }
4932
+ var nw = [];
4933
+ for (var i = 0; i < change.text.length; ++i)
4934
+ { nw.push(removeClearedSpans(found[i])); }
4935
+ return nw
4936
+ }
4937
+
4938
+ // Used for un/re-doing changes from the history. Combines the
4939
+ // result of computing the existing spans with the set of spans that
4940
+ // existed in the history (so that deleting around a span and then
4941
+ // undoing brings back the span).
4942
+ function mergeOldSpans(doc, change) {
4943
+ var old = getOldSpans(doc, change);
4944
+ var stretched = stretchSpansOverChange(doc, change);
4945
+ if (!old) { return stretched }
4946
+ if (!stretched) { return old }
4947
+
4948
+ for (var i = 0; i < old.length; ++i) {
4949
+ var oldCur = old[i], stretchCur = stretched[i];
4950
+ if (oldCur && stretchCur) {
4951
+ spans: for (var j = 0; j < stretchCur.length; ++j) {
4952
+ var span = stretchCur[j];
4953
+ for (var k = 0; k < oldCur.length; ++k)
4954
+ { if (oldCur[k].marker == span.marker) { continue spans } }
4955
+ oldCur.push(span);
4956
+ }
4957
+ } else if (stretchCur) {
4958
+ old[i] = stretchCur;
4959
+ }
4960
+ }
4961
+ return old
4962
+ }
4963
+
4964
+ // Used both to provide a JSON-safe object in .getHistory, and, when
4965
+ // detaching a document, to split the history in two
4966
+ function copyHistoryArray(events, newGroup, instantiateSel) {
4967
+ var copy = [];
4968
+ for (var i = 0; i < events.length; ++i) {
4969
+ var event = events[i];
4970
+ if (event.ranges) {
4971
+ copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event);
4972
+ continue
4973
+ }
4974
+ var changes = event.changes, newChanges = [];
4975
+ copy.push({changes: newChanges});
4976
+ for (var j = 0; j < changes.length; ++j) {
4977
+ var change = changes[j], m = (void 0);
4978
+ newChanges.push({from: change.from, to: change.to, text: change.text});
4979
+ if (newGroup) { for (var prop in change) { if (m = prop.match(/^spans_(\d+)$/)) {
4980
+ if (indexOf(newGroup, Number(m[1])) > -1) {
4981
+ lst(newChanges)[prop] = change[prop];
4982
+ delete change[prop];
4983
+ }
4984
+ } } }
4985
+ }
4986
+ }
4987
+ return copy
4988
+ }
4989
+
4990
+ // The 'scroll' parameter given to many of these indicated whether
4991
+ // the new cursor position should be scrolled into view after
4992
+ // modifying the selection.
4993
+
4994
+ // If shift is held or the extend flag is set, extends a range to
4995
+ // include a given position (and optionally a second position).
4996
+ // Otherwise, simply returns the range between the given positions.
4997
+ // Used for cursor motion and such.
4998
+ function extendRange(range, head, other, extend) {
4999
+ if (extend) {
5000
+ var anchor = range.anchor;
5001
+ if (other) {
5002
+ var posBefore = cmp(head, anchor) < 0;
5003
+ if (posBefore != (cmp(other, anchor) < 0)) {
5004
+ anchor = head;
5005
+ head = other;
5006
+ } else if (posBefore != (cmp(head, other) < 0)) {
5007
+ head = other;
5008
+ }
5009
+ }
5010
+ return new Range(anchor, head)
5011
+ } else {
5012
+ return new Range(other || head, head)
5013
+ }
5014
+ }
5015
+
5016
+ // Extend the primary selection range, discard the rest.
5017
+ function extendSelection(doc, head, other, options, extend) {
5018
+ if (extend == null) { extend = doc.cm && (doc.cm.display.shift || doc.extend); }
5019
+ setSelection(doc, new Selection([extendRange(doc.sel.primary(), head, other, extend)], 0), options);
5020
+ }
5021
+
5022
+ // Extend all selections (pos is an array of selections with length
5023
+ // equal the number of selections)
5024
+ function extendSelections(doc, heads, options) {
5025
+ var out = [];
5026
+ var extend = doc.cm && (doc.cm.display.shift || doc.extend);
5027
+ for (var i = 0; i < doc.sel.ranges.length; i++)
5028
+ { out[i] = extendRange(doc.sel.ranges[i], heads[i], null, extend); }
5029
+ var newSel = normalizeSelection(doc.cm, out, doc.sel.primIndex);
5030
+ setSelection(doc, newSel, options);
5031
+ }
5032
+
5033
+ // Updates a single range in the selection.
5034
+ function replaceOneSelection(doc, i, range, options) {
5035
+ var ranges = doc.sel.ranges.slice(0);
5036
+ ranges[i] = range;
5037
+ setSelection(doc, normalizeSelection(doc.cm, ranges, doc.sel.primIndex), options);
5038
+ }
5039
+
5040
+ // Reset the selection to a single range.
5041
+ function setSimpleSelection(doc, anchor, head, options) {
5042
+ setSelection(doc, simpleSelection(anchor, head), options);
5043
+ }
5044
+
5045
+ // Give beforeSelectionChange handlers a change to influence a
5046
+ // selection update.
5047
+ function filterSelectionChange(doc, sel, options) {
5048
+ var obj = {
5049
+ ranges: sel.ranges,
5050
+ update: function(ranges) {
5051
+ var this$1 = this;
5052
+
5053
+ this.ranges = [];
5054
+ for (var i = 0; i < ranges.length; i++)
5055
+ { this$1.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),
5056
+ clipPos(doc, ranges[i].head)); }
5057
+ },
5058
+ origin: options && options.origin
5059
+ };
5060
+ signal(doc, "beforeSelectionChange", doc, obj);
5061
+ if (doc.cm) { signal(doc.cm, "beforeSelectionChange", doc.cm, obj); }
5062
+ if (obj.ranges != sel.ranges) { return normalizeSelection(doc.cm, obj.ranges, obj.ranges.length - 1) }
5063
+ else { return sel }
5064
+ }
5065
+
5066
+ function setSelectionReplaceHistory(doc, sel, options) {
5067
+ var done = doc.history.done, last = lst(done);
5068
+ if (last && last.ranges) {
5069
+ done[done.length - 1] = sel;
5070
+ setSelectionNoUndo(doc, sel, options);
5071
+ } else {
5072
+ setSelection(doc, sel, options);
5073
+ }
5074
+ }
5075
+
5076
+ // Set a new selection.
5077
+ function setSelection(doc, sel, options) {
5078
+ setSelectionNoUndo(doc, sel, options);
5079
+ addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options);
5080
+ }
5081
+
5082
+ function setSelectionNoUndo(doc, sel, options) {
5083
+ if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange"))
5084
+ { sel = filterSelectionChange(doc, sel, options); }
5085
+
5086
+ var bias = options && options.bias ||
5087
+ (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1);
5088
+ setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true));
5089
+
5090
+ if (!(options && options.scroll === false) && doc.cm)
5091
+ { ensureCursorVisible(doc.cm); }
5092
+ }
5093
+
5094
+ function setSelectionInner(doc, sel) {
5095
+ if (sel.equals(doc.sel)) { return }
5096
+
5097
+ doc.sel = sel;
5098
+
5099
+ if (doc.cm) {
5100
+ doc.cm.curOp.updateInput = 1;
5101
+ doc.cm.curOp.selectionChanged = true;
5102
+ signalCursorActivity(doc.cm);
5103
+ }
5104
+ signalLater(doc, "cursorActivity", doc);
5105
+ }
5106
+
5107
+ // Verify that the selection does not partially select any atomic
5108
+ // marked ranges.
5109
+ function reCheckSelection(doc) {
5110
+ setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false));
5111
+ }
5112
+
5113
+ // Return a selection that does not partially select any atomic
5114
+ // ranges.
5115
+ function skipAtomicInSelection(doc, sel, bias, mayClear) {
5116
+ var out;
5117
+ for (var i = 0; i < sel.ranges.length; i++) {
5118
+ var range = sel.ranges[i];
5119
+ var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i];
5120
+ var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear);
5121
+ var newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear);
5122
+ if (out || newAnchor != range.anchor || newHead != range.head) {
5123
+ if (!out) { out = sel.ranges.slice(0, i); }
5124
+ out[i] = new Range(newAnchor, newHead);
5125
+ }
5126
+ }
5127
+ return out ? normalizeSelection(doc.cm, out, sel.primIndex) : sel
5128
+ }
5129
+
5130
+ function skipAtomicInner(doc, pos, oldPos, dir, mayClear) {
5131
+ var line = getLine(doc, pos.line);
5132
+ if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
5133
+ var sp = line.markedSpans[i], m = sp.marker;
5134
+ if ((sp.from == null || (m.inclusiveLeft ? sp.from <= pos.ch : sp.from < pos.ch)) &&
5135
+ (sp.to == null || (m.inclusiveRight ? sp.to >= pos.ch : sp.to > pos.ch))) {
5136
+ if (mayClear) {
5137
+ signal(m, "beforeCursorEnter");
5138
+ if (m.explicitlyCleared) {
5139
+ if (!line.markedSpans) { break }
5140
+ else {--i; continue}
5141
+ }
5142
+ }
5143
+ if (!m.atomic) { continue }
5144
+
5145
+ if (oldPos) {
5146
+ var near = m.find(dir < 0 ? 1 : -1), diff = (void 0);
5147
+ if (dir < 0 ? m.inclusiveRight : m.inclusiveLeft)
5148
+ { near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null); }
5149
+ if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0))
5150
+ { return skipAtomicInner(doc, near, pos, dir, mayClear) }
5151
+ }
5152
+
5153
+ var far = m.find(dir < 0 ? -1 : 1);
5154
+ if (dir < 0 ? m.inclusiveLeft : m.inclusiveRight)
5155
+ { far = movePos(doc, far, dir, far.line == pos.line ? line : null); }
5156
+ return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null
5157
+ }
5158
+ } }
5159
+ return pos
5160
+ }
5161
+
5162
+ // Ensure a given position is not inside an atomic range.
5163
+ function skipAtomic(doc, pos, oldPos, bias, mayClear) {
5164
+ var dir = bias || 1;
5165
+ var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) ||
5166
+ (!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) ||
5167
+ skipAtomicInner(doc, pos, oldPos, -dir, mayClear) ||
5168
+ (!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true));
5169
+ if (!found) {
5170
+ doc.cantEdit = true;
5171
+ return Pos(doc.first, 0)
5172
+ }
5173
+ return found
5174
+ }
5175
+
5176
+ function movePos(doc, pos, dir, line) {
5177
+ if (dir < 0 && pos.ch == 0) {
5178
+ if (pos.line > doc.first) { return clipPos(doc, Pos(pos.line - 1)) }
5179
+ else { return null }
5180
+ } else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) {
5181
+ if (pos.line < doc.first + doc.size - 1) { return Pos(pos.line + 1, 0) }
5182
+ else { return null }
5183
+ } else {
5184
+ return new Pos(pos.line, pos.ch + dir)
5185
+ }
5186
+ }
5187
+
5188
+ function selectAll(cm) {
5189
+ cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);
5190
+ }
5191
+
5192
+ // UPDATING
5193
+
5194
+ // Allow "beforeChange" event handlers to influence a change
5195
+ function filterChange(doc, change, update) {
5196
+ var obj = {
5197
+ canceled: false,
5198
+ from: change.from,
5199
+ to: change.to,
5200
+ text: change.text,
5201
+ origin: change.origin,
5202
+ cancel: function () { return obj.canceled = true; }
5203
+ };
5204
+ if (update) { obj.update = function (from, to, text, origin) {
5205
+ if (from) { obj.from = clipPos(doc, from); }
5206
+ if (to) { obj.to = clipPos(doc, to); }
5207
+ if (text) { obj.text = text; }
5208
+ if (origin !== undefined) { obj.origin = origin; }
5209
+ }; }
5210
+ signal(doc, "beforeChange", doc, obj);
5211
+ if (doc.cm) { signal(doc.cm, "beforeChange", doc.cm, obj); }
5212
+
5213
+ if (obj.canceled) {
5214
+ if (doc.cm) { doc.cm.curOp.updateInput = 2; }
5215
+ return null
5216
+ }
5217
+ return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin}
5218
+ }
5219
+
5220
+ // Apply a change to a document, and add it to the document's
5221
+ // history, and propagating it to all linked documents.
5222
+ function makeChange(doc, change, ignoreReadOnly) {
5223
+ if (doc.cm) {
5224
+ if (!doc.cm.curOp) { return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly) }
5225
+ if (doc.cm.state.suppressEdits) { return }
5226
+ }
5227
+
5228
+ if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) {
5229
+ change = filterChange(doc, change, true);
5230
+ if (!change) { return }
5231
+ }
5232
+
5233
+ // Possibly split or suppress the update based on the presence
5234
+ // of read-only spans in its range.
5235
+ var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to);
5236
+ if (split) {
5237
+ for (var i = split.length - 1; i >= 0; --i)
5238
+ { makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text, origin: change.origin}); }
5239
+ } else {
5240
+ makeChangeInner(doc, change);
5241
+ }
5242
+ }
5243
+
5244
+ function makeChangeInner(doc, change) {
5245
+ if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) { return }
5246
+ var selAfter = computeSelAfterChange(doc, change);
5247
+ addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN);
5248
+
5249
+ makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change));
5250
+ var rebased = [];
5251
+
5252
+ linkedDocs(doc, function (doc, sharedHist) {
5253
+ if (!sharedHist && indexOf(rebased, doc.history) == -1) {
5254
+ rebaseHist(doc.history, change);
5255
+ rebased.push(doc.history);
5256
+ }
5257
+ makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change));
5258
+ });
5259
+ }
5260
+
5261
+ // Revert a change stored in a document's history.
5262
+ function makeChangeFromHistory(doc, type, allowSelectionOnly) {
5263
+ var suppress = doc.cm && doc.cm.state.suppressEdits;
5264
+ if (suppress && !allowSelectionOnly) { return }
5265
+
5266
+ var hist = doc.history, event, selAfter = doc.sel;
5267
+ var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done;
5268
+
5269
+ // Verify that there is a useable event (so that ctrl-z won't
5270
+ // needlessly clear selection events)
5271
+ var i = 0;
5272
+ for (; i < source.length; i++) {
5273
+ event = source[i];
5274
+ if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)
5275
+ { break }
5276
+ }
5277
+ if (i == source.length) { return }
5278
+ hist.lastOrigin = hist.lastSelOrigin = null;
5279
+
5280
+ for (;;) {
5281
+ event = source.pop();
5282
+ if (event.ranges) {
5283
+ pushSelectionToHistory(event, dest);
5284
+ if (allowSelectionOnly && !event.equals(doc.sel)) {
5285
+ setSelection(doc, event, {clearRedo: false});
5286
+ return
5287
+ }
5288
+ selAfter = event;
5289
+ } else if (suppress) {
5290
+ source.push(event);
5291
+ return
5292
+ } else { break }
5293
+ }
5294
+
5295
+ // Build up a reverse change object to add to the opposite history
5296
+ // stack (redo when undoing, and vice versa).
5297
+ var antiChanges = [];
5298
+ pushSelectionToHistory(selAfter, dest);
5299
+ dest.push({changes: antiChanges, generation: hist.generation});
5300
+ hist.generation = event.generation || ++hist.maxGeneration;
5301
+
5302
+ var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange");
5303
+
5304
+ var loop = function ( i ) {
5305
+ var change = event.changes[i];
5306
+ change.origin = type;
5307
+ if (filter && !filterChange(doc, change, false)) {
5308
+ source.length = 0;
5309
+ return {}
5310
+ }
5311
+
5312
+ antiChanges.push(historyChangeFromChange(doc, change));
5313
+
5314
+ var after = i ? computeSelAfterChange(doc, change) : lst(source);
5315
+ makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change));
5316
+ if (!i && doc.cm) { doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)}); }
5317
+ var rebased = [];
5318
+
5319
+ // Propagate to the linked documents
5320
+ linkedDocs(doc, function (doc, sharedHist) {
5321
+ if (!sharedHist && indexOf(rebased, doc.history) == -1) {
5322
+ rebaseHist(doc.history, change);
5323
+ rebased.push(doc.history);
5324
+ }
5325
+ makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change));
5326
+ });
5327
+ };
5328
+
5329
+ for (var i$1 = event.changes.length - 1; i$1 >= 0; --i$1) {
5330
+ var returned = loop( i$1 );
5331
+
5332
+ if ( returned ) return returned.v;
5333
+ }
5334
+ }
5335
+
5336
+ // Sub-views need their line numbers shifted when text is added
5337
+ // above or below them in the parent document.
5338
+ function shiftDoc(doc, distance) {
5339
+ if (distance == 0) { return }
5340
+ doc.first += distance;
5341
+ doc.sel = new Selection(map(doc.sel.ranges, function (range) { return new Range(
5342
+ Pos(range.anchor.line + distance, range.anchor.ch),
5343
+ Pos(range.head.line + distance, range.head.ch)
5344
+ ); }), doc.sel.primIndex);
5345
+ if (doc.cm) {
5346
+ regChange(doc.cm, doc.first, doc.first - distance, distance);
5347
+ for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)
5348
+ { regLineChange(doc.cm, l, "gutter"); }
5349
+ }
5350
+ }
5351
+
5352
+ // More lower-level change function, handling only a single document
5353
+ // (not linked ones).
5354
+ function makeChangeSingleDoc(doc, change, selAfter, spans) {
5355
+ if (doc.cm && !doc.cm.curOp)
5356
+ { return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans) }
5357
+
5358
+ if (change.to.line < doc.first) {
5359
+ shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line));
5360
+ return
5361
+ }
5362
+ if (change.from.line > doc.lastLine()) { return }
5363
+
5364
+ // Clip the change to the size of this doc
5365
+ if (change.from.line < doc.first) {
5366
+ var shift = change.text.length - 1 - (doc.first - change.from.line);
5367
+ shiftDoc(doc, shift);
5368
+ change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),
5369
+ text: [lst(change.text)], origin: change.origin};
5370
+ }
5371
+ var last = doc.lastLine();
5372
+ if (change.to.line > last) {
5373
+ change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),
5374
+ text: [change.text[0]], origin: change.origin};
5375
+ }
5376
+
5377
+ change.removed = getBetween(doc, change.from, change.to);
5378
+
5379
+ if (!selAfter) { selAfter = computeSelAfterChange(doc, change); }
5380
+ if (doc.cm) { makeChangeSingleDocInEditor(doc.cm, change, spans); }
5381
+ else { updateDoc(doc, change, spans); }
5382
+ setSelectionNoUndo(doc, selAfter, sel_dontScroll);
5383
+ }
5384
+
5385
+ // Handle the interaction of a change to a document with the editor
5386
+ // that this document is part of.
5387
+ function makeChangeSingleDocInEditor(cm, change, spans) {
5388
+ var doc = cm.doc, display = cm.display, from = change.from, to = change.to;
5389
+
5390
+ var recomputeMaxLength = false, checkWidthStart = from.line;
5391
+ if (!cm.options.lineWrapping) {
5392
+ checkWidthStart = lineNo(visualLine(getLine(doc, from.line)));
5393
+ doc.iter(checkWidthStart, to.line + 1, function (line) {
5394
+ if (line == display.maxLine) {
5395
+ recomputeMaxLength = true;
5396
+ return true
5397
+ }
5398
+ });
5399
+ }
5400
+
5401
+ if (doc.sel.contains(change.from, change.to) > -1)
5402
+ { signalCursorActivity(cm); }
5403
+
5404
+ updateDoc(doc, change, spans, estimateHeight(cm));
5405
+
5406
+ if (!cm.options.lineWrapping) {
5407
+ doc.iter(checkWidthStart, from.line + change.text.length, function (line) {
5408
+ var len = lineLength(line);
5409
+ if (len > display.maxLineLength) {
5410
+ display.maxLine = line;
5411
+ display.maxLineLength = len;
5412
+ display.maxLineChanged = true;
5413
+ recomputeMaxLength = false;
5414
+ }
5415
+ });
5416
+ if (recomputeMaxLength) { cm.curOp.updateMaxLine = true; }
5417
+ }
5418
+
5419
+ retreatFrontier(doc, from.line);
5420
+ startWorker(cm, 400);
5421
+
5422
+ var lendiff = change.text.length - (to.line - from.line) - 1;
5423
+ // Remember that these lines changed, for updating the display
5424
+ if (change.full)
5425
+ { regChange(cm); }
5426
+ else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))
5427
+ { regLineChange(cm, from.line, "text"); }
5428
+ else
5429
+ { regChange(cm, from.line, to.line + 1, lendiff); }
5430
+
5431
+ var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change");
5432
+ if (changeHandler || changesHandler) {
5433
+ var obj = {
5434
+ from: from, to: to,
5435
+ text: change.text,
5436
+ removed: change.removed,
5437
+ origin: change.origin
5438
+ };
5439
+ if (changeHandler) { signalLater(cm, "change", cm, obj); }
5440
+ if (changesHandler) { (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj); }
5441
+ }
5442
+ cm.display.selForContextMenu = null;
5443
+ }
5444
+
5445
+ function replaceRange(doc, code, from, to, origin) {
5446
+ var assign;
5447
+
5448
+ if (!to) { to = from; }
5449
+ if (cmp(to, from) < 0) { (assign = [to, from], from = assign[0], to = assign[1]); }
5450
+ if (typeof code == "string") { code = doc.splitLines(code); }
5451
+ makeChange(doc, {from: from, to: to, text: code, origin: origin});
5452
+ }
5453
+
5454
+ // Rebasing/resetting history to deal with externally-sourced changes
5455
+
5456
+ function rebaseHistSelSingle(pos, from, to, diff) {
5457
+ if (to < pos.line) {
5458
+ pos.line += diff;
5459
+ } else if (from < pos.line) {
5460
+ pos.line = from;
5461
+ pos.ch = 0;
5462
+ }
5463
+ }
5464
+
5465
+ // Tries to rebase an array of history events given a change in the
5466
+ // document. If the change touches the same lines as the event, the
5467
+ // event, and everything 'behind' it, is discarded. If the change is
5468
+ // before the event, the event's positions are updated. Uses a
5469
+ // copy-on-write scheme for the positions, to avoid having to
5470
+ // reallocate them all on every rebase, but also avoid problems with
5471
+ // shared position objects being unsafely updated.
5472
+ function rebaseHistArray(array, from, to, diff) {
5473
+ for (var i = 0; i < array.length; ++i) {
5474
+ var sub = array[i], ok = true;
5475
+ if (sub.ranges) {
5476
+ if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; }
5477
+ for (var j = 0; j < sub.ranges.length; j++) {
5478
+ rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff);
5479
+ rebaseHistSelSingle(sub.ranges[j].head, from, to, diff);
5480
+ }
5481
+ continue
5482
+ }
5483
+ for (var j$1 = 0; j$1 < sub.changes.length; ++j$1) {
5484
+ var cur = sub.changes[j$1];
5485
+ if (to < cur.from.line) {
5486
+ cur.from = Pos(cur.from.line + diff, cur.from.ch);
5487
+ cur.to = Pos(cur.to.line + diff, cur.to.ch);
5488
+ } else if (from <= cur.to.line) {
5489
+ ok = false;
5490
+ break
5491
+ }
5492
+ }
5493
+ if (!ok) {
5494
+ array.splice(0, i + 1);
5495
+ i = 0;
5496
+ }
5497
+ }
5498
+ }
5499
+
5500
+ function rebaseHist(hist, change) {
5501
+ var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1;
5502
+ rebaseHistArray(hist.done, from, to, diff);
5503
+ rebaseHistArray(hist.undone, from, to, diff);
5504
+ }
5505
+
5506
+ // Utility for applying a change to a line by handle or number,
5507
+ // returning the number and optionally registering the line as
5508
+ // changed.
5509
+ function changeLine(doc, handle, changeType, op) {
5510
+ var no = handle, line = handle;
5511
+ if (typeof handle == "number") { line = getLine(doc, clipLine(doc, handle)); }
5512
+ else { no = lineNo(handle); }
5513
+ if (no == null) { return null }
5514
+ if (op(line, no) && doc.cm) { regLineChange(doc.cm, no, changeType); }
5515
+ return line
5516
+ }
5517
+
5518
+ // The document is represented as a BTree consisting of leaves, with
5519
+ // chunk of lines in them, and branches, with up to ten leaves or
5520
+ // other branch nodes below them. The top node is always a branch
5521
+ // node, and is the document object itself (meaning it has
5522
+ // additional methods and properties).
5523
+ //
5524
+ // All nodes have parent links. The tree is used both to go from
5525
+ // line numbers to line objects, and to go from objects to numbers.
5526
+ // It also indexes by height, and is used to convert between height
5527
+ // and line object, and to find the total height of the document.
5528
+ //
5529
+ // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html
5530
+
5531
+ function LeafChunk(lines) {
5532
+ var this$1 = this;
5533
+
5534
+ this.lines = lines;
5535
+ this.parent = null;
5536
+ var height = 0;
5537
+ for (var i = 0; i < lines.length; ++i) {
5538
+ lines[i].parent = this$1;
5539
+ height += lines[i].height;
5540
+ }
5541
+ this.height = height;
5542
+ }
5543
+
5544
+ LeafChunk.prototype = {
5545
+ chunkSize: function() { return this.lines.length },
5546
+
5547
+ // Remove the n lines at offset 'at'.
5548
+ removeInner: function(at, n) {
5549
+ var this$1 = this;
5550
+
5551
+ for (var i = at, e = at + n; i < e; ++i) {
5552
+ var line = this$1.lines[i];
5553
+ this$1.height -= line.height;
5554
+ cleanUpLine(line);
5555
+ signalLater(line, "delete");
5556
+ }
5557
+ this.lines.splice(at, n);
5558
+ },
5559
+
5560
+ // Helper used to collapse a small branch into a single leaf.
5561
+ collapse: function(lines) {
5562
+ lines.push.apply(lines, this.lines);
5563
+ },
5564
+
5565
+ // Insert the given array of lines at offset 'at', count them as
5566
+ // having the given height.
5567
+ insertInner: function(at, lines, height) {
5568
+ var this$1 = this;
5569
+
5570
+ this.height += height;
5571
+ this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
5572
+ for (var i = 0; i < lines.length; ++i) { lines[i].parent = this$1; }
5573
+ },
5574
+
5575
+ // Used to iterate over a part of the tree.
5576
+ iterN: function(at, n, op) {
5577
+ var this$1 = this;
5578
+
5579
+ for (var e = at + n; at < e; ++at)
5580
+ { if (op(this$1.lines[at])) { return true } }
5581
+ }
5582
+ };
5583
+
5584
+ function BranchChunk(children) {
5585
+ var this$1 = this;
5586
+
5587
+ this.children = children;
5588
+ var size = 0, height = 0;
5589
+ for (var i = 0; i < children.length; ++i) {
5590
+ var ch = children[i];
5591
+ size += ch.chunkSize(); height += ch.height;
5592
+ ch.parent = this$1;
5593
+ }
5594
+ this.size = size;
5595
+ this.height = height;
5596
+ this.parent = null;
5597
+ }
5598
+
5599
+ BranchChunk.prototype = {
5600
+ chunkSize: function() { return this.size },
5601
+
5602
+ removeInner: function(at, n) {
5603
+ var this$1 = this;
5604
+
5605
+ this.size -= n;
5606
+ for (var i = 0; i < this.children.length; ++i) {
5607
+ var child = this$1.children[i], sz = child.chunkSize();
5608
+ if (at < sz) {
5609
+ var rm = Math.min(n, sz - at), oldHeight = child.height;
5610
+ child.removeInner(at, rm);
5611
+ this$1.height -= oldHeight - child.height;
5612
+ if (sz == rm) { this$1.children.splice(i--, 1); child.parent = null; }
5613
+ if ((n -= rm) == 0) { break }
5614
+ at = 0;
5615
+ } else { at -= sz; }
5616
+ }
5617
+ // If the result is smaller than 25 lines, ensure that it is a
5618
+ // single leaf node.
5619
+ if (this.size - n < 25 &&
5620
+ (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {
5621
+ var lines = [];
5622
+ this.collapse(lines);
5623
+ this.children = [new LeafChunk(lines)];
5624
+ this.children[0].parent = this;
5625
+ }
5626
+ },
5627
+
5628
+ collapse: function(lines) {
5629
+ var this$1 = this;
5630
+
5631
+ for (var i = 0; i < this.children.length; ++i) { this$1.children[i].collapse(lines); }
5632
+ },
5633
+
5634
+ insertInner: function(at, lines, height) {
5635
+ var this$1 = this;
5636
+
5637
+ this.size += lines.length;
5638
+ this.height += height;
5639
+ for (var i = 0; i < this.children.length; ++i) {
5640
+ var child = this$1.children[i], sz = child.chunkSize();
5641
+ if (at <= sz) {
5642
+ child.insertInner(at, lines, height);
5643
+ if (child.lines && child.lines.length > 50) {
5644
+ // To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced.
5645
+ // Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest.
5646
+ var remaining = child.lines.length % 25 + 25;
5647
+ for (var pos = remaining; pos < child.lines.length;) {
5648
+ var leaf = new LeafChunk(child.lines.slice(pos, pos += 25));
5649
+ child.height -= leaf.height;
5650
+ this$1.children.splice(++i, 0, leaf);
5651
+ leaf.parent = this$1;
5652
+ }
5653
+ child.lines = child.lines.slice(0, remaining);
5654
+ this$1.maybeSpill();
5655
+ }
5656
+ break
5657
+ }
5658
+ at -= sz;
5659
+ }
5660
+ },
5661
+
5662
+ // When a node has grown, check whether it should be split.
5663
+ maybeSpill: function() {
5664
+ if (this.children.length <= 10) { return }
5665
+ var me = this;
5666
+ do {
5667
+ var spilled = me.children.splice(me.children.length - 5, 5);
5668
+ var sibling = new BranchChunk(spilled);
5669
+ if (!me.parent) { // Become the parent node
5670
+ var copy = new BranchChunk(me.children);
5671
+ copy.parent = me;
5672
+ me.children = [copy, sibling];
5673
+ me = copy;
5674
+ } else {
5675
+ me.size -= sibling.size;
5676
+ me.height -= sibling.height;
5677
+ var myIndex = indexOf(me.parent.children, me);
5678
+ me.parent.children.splice(myIndex + 1, 0, sibling);
5679
+ }
5680
+ sibling.parent = me.parent;
5681
+ } while (me.children.length > 10)
5682
+ me.parent.maybeSpill();
5683
+ },
5684
+
5685
+ iterN: function(at, n, op) {
5686
+ var this$1 = this;
5687
+
5688
+ for (var i = 0; i < this.children.length; ++i) {
5689
+ var child = this$1.children[i], sz = child.chunkSize();
5690
+ if (at < sz) {
5691
+ var used = Math.min(n, sz - at);
5692
+ if (child.iterN(at, used, op)) { return true }
5693
+ if ((n -= used) == 0) { break }
5694
+ at = 0;
5695
+ } else { at -= sz; }
5696
+ }
5697
+ }
5698
+ };
5699
+
5700
+ // Line widgets are block elements displayed above or below a line.
5701
+
5702
+ var LineWidget = function(doc, node, options) {
5703
+ var this$1 = this;
5704
+
5705
+ if (options) { for (var opt in options) { if (options.hasOwnProperty(opt))
5706
+ { this$1[opt] = options[opt]; } } }
5707
+ this.doc = doc;
5708
+ this.node = node;
5709
+ };
5710
+
5711
+ LineWidget.prototype.clear = function () {
5712
+ var this$1 = this;
5713
+
5714
+ var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line);
5715
+ if (no == null || !ws) { return }
5716
+ for (var i = 0; i < ws.length; ++i) { if (ws[i] == this$1) { ws.splice(i--, 1); } }
5717
+ if (!ws.length) { line.widgets = null; }
5718
+ var height = widgetHeight(this);
5719
+ updateLineHeight(line, Math.max(0, line.height - height));
5720
+ if (cm) {
5721
+ runInOp(cm, function () {
5722
+ adjustScrollWhenAboveVisible(cm, line, -height);
5723
+ regLineChange(cm, no, "widget");
5724
+ });
5725
+ signalLater(cm, "lineWidgetCleared", cm, this, no);
5726
+ }
5727
+ };
5728
+
5729
+ LineWidget.prototype.changed = function () {
5730
+ var this$1 = this;
5731
+
5732
+ var oldH = this.height, cm = this.doc.cm, line = this.line;
5733
+ this.height = null;
5734
+ var diff = widgetHeight(this) - oldH;
5735
+ if (!diff) { return }
5736
+ if (!lineIsHidden(this.doc, line)) { updateLineHeight(line, line.height + diff); }
5737
+ if (cm) {
5738
+ runInOp(cm, function () {
5739
+ cm.curOp.forceUpdate = true;
5740
+ adjustScrollWhenAboveVisible(cm, line, diff);
5741
+ signalLater(cm, "lineWidgetChanged", cm, this$1, lineNo(line));
5742
+ });
5743
+ }
5744
+ };
5745
+ eventMixin(LineWidget);
5746
+
5747
+ function adjustScrollWhenAboveVisible(cm, line, diff) {
5748
+ if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))
5749
+ { addToScrollTop(cm, diff); }
5750
+ }
5751
+
5752
+ function addLineWidget(doc, handle, node, options) {
5753
+ var widget = new LineWidget(doc, node, options);
5754
+ var cm = doc.cm;
5755
+ if (cm && widget.noHScroll) { cm.display.alignWidgets = true; }
5756
+ changeLine(doc, handle, "widget", function (line) {
5757
+ var widgets = line.widgets || (line.widgets = []);
5758
+ if (widget.insertAt == null) { widgets.push(widget); }
5759
+ else { widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget); }
5760
+ widget.line = line;
5761
+ if (cm && !lineIsHidden(doc, line)) {
5762
+ var aboveVisible = heightAtLine(line) < doc.scrollTop;
5763
+ updateLineHeight(line, line.height + widgetHeight(widget));
5764
+ if (aboveVisible) { addToScrollTop(cm, widget.height); }
5765
+ cm.curOp.forceUpdate = true;
5766
+ }
5767
+ return true
5768
+ });
5769
+ if (cm) { signalLater(cm, "lineWidgetAdded", cm, widget, typeof handle == "number" ? handle : lineNo(handle)); }
5770
+ return widget
5771
+ }
5772
+
5773
+ // TEXTMARKERS
5774
+
5775
+ // Created with markText and setBookmark methods. A TextMarker is a
5776
+ // handle that can be used to clear or find a marked position in the
5777
+ // document. Line objects hold arrays (markedSpans) containing
5778
+ // {from, to, marker} object pointing to such marker objects, and
5779
+ // indicating that such a marker is present on that line. Multiple
5780
+ // lines may point to the same marker when it spans across lines.
5781
+ // The spans will have null for their from/to properties when the
5782
+ // marker continues beyond the start/end of the line. Markers have
5783
+ // links back to the lines they currently touch.
5784
+
5785
+ // Collapsed markers have unique ids, in order to be able to order
5786
+ // them, which is needed for uniquely determining an outer marker
5787
+ // when they overlap (they may nest, but not partially overlap).
5788
+ var nextMarkerId = 0;
5789
+
5790
+ var TextMarker = function(doc, type) {
5791
+ this.lines = [];
5792
+ this.type = type;
5793
+ this.doc = doc;
5794
+ this.id = ++nextMarkerId;
5795
+ };
5796
+
5797
+ // Clear the marker.
5798
+ TextMarker.prototype.clear = function () {
5799
+ var this$1 = this;
5800
+
5801
+ if (this.explicitlyCleared) { return }
5802
+ var cm = this.doc.cm, withOp = cm && !cm.curOp;
5803
+ if (withOp) { startOperation(cm); }
5804
+ if (hasHandler(this, "clear")) {
5805
+ var found = this.find();
5806
+ if (found) { signalLater(this, "clear", found.from, found.to); }
5807
+ }
5808
+ var min = null, max = null;
5809
+ for (var i = 0; i < this.lines.length; ++i) {
5810
+ var line = this$1.lines[i];
5811
+ var span = getMarkedSpanFor(line.markedSpans, this$1);
5812
+ if (cm && !this$1.collapsed) { regLineChange(cm, lineNo(line), "text"); }
5813
+ else if (cm) {
5814
+ if (span.to != null) { max = lineNo(line); }
5815
+ if (span.from != null) { min = lineNo(line); }
5816
+ }
5817
+ line.markedSpans = removeMarkedSpan(line.markedSpans, span);
5818
+ if (span.from == null && this$1.collapsed && !lineIsHidden(this$1.doc, line) && cm)
5819
+ { updateLineHeight(line, textHeight(cm.display)); }
5820
+ }
5821
+ if (cm && this.collapsed && !cm.options.lineWrapping) { for (var i$1 = 0; i$1 < this.lines.length; ++i$1) {
5822
+ var visual = visualLine(this$1.lines[i$1]), len = lineLength(visual);
5823
+ if (len > cm.display.maxLineLength) {
5824
+ cm.display.maxLine = visual;
5825
+ cm.display.maxLineLength = len;
5826
+ cm.display.maxLineChanged = true;
5827
+ }
5828
+ } }
5829
+
5830
+ if (min != null && cm && this.collapsed) { regChange(cm, min, max + 1); }
5831
+ this.lines.length = 0;
5832
+ this.explicitlyCleared = true;
5833
+ if (this.atomic && this.doc.cantEdit) {
5834
+ this.doc.cantEdit = false;
5835
+ if (cm) { reCheckSelection(cm.doc); }
5836
+ }
5837
+ if (cm) { signalLater(cm, "markerCleared", cm, this, min, max); }
5838
+ if (withOp) { endOperation(cm); }
5839
+ if (this.parent) { this.parent.clear(); }
5840
+ };
5841
+
5842
+ // Find the position of the marker in the document. Returns a {from,
5843
+ // to} object by default. Side can be passed to get a specific side
5844
+ // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the
5845
+ // Pos objects returned contain a line object, rather than a line
5846
+ // number (used to prevent looking up the same line twice).
5847
+ TextMarker.prototype.find = function (side, lineObj) {
5848
+ var this$1 = this;
5849
+
5850
+ if (side == null && this.type == "bookmark") { side = 1; }
5851
+ var from, to;
5852
+ for (var i = 0; i < this.lines.length; ++i) {
5853
+ var line = this$1.lines[i];
5854
+ var span = getMarkedSpanFor(line.markedSpans, this$1);
5855
+ if (span.from != null) {
5856
+ from = Pos(lineObj ? line : lineNo(line), span.from);
5857
+ if (side == -1) { return from }
5858
+ }
5859
+ if (span.to != null) {
5860
+ to = Pos(lineObj ? line : lineNo(line), span.to);
5861
+ if (side == 1) { return to }
5862
+ }
5863
+ }
5864
+ return from && {from: from, to: to}
5865
+ };
5866
+
5867
+ // Signals that the marker's widget changed, and surrounding layout
5868
+ // should be recomputed.
5869
+ TextMarker.prototype.changed = function () {
5870
+ var this$1 = this;
5871
+
5872
+ var pos = this.find(-1, true), widget = this, cm = this.doc.cm;
5873
+ if (!pos || !cm) { return }
5874
+ runInOp(cm, function () {
5875
+ var line = pos.line, lineN = lineNo(pos.line);
5876
+ var view = findViewForLine(cm, lineN);
5877
+ if (view) {
5878
+ clearLineMeasurementCacheFor(view);
5879
+ cm.curOp.selectionChanged = cm.curOp.forceUpdate = true;
5880
+ }
5881
+ cm.curOp.updateMaxLine = true;
5882
+ if (!lineIsHidden(widget.doc, line) && widget.height != null) {
5883
+ var oldHeight = widget.height;
5884
+ widget.height = null;
5885
+ var dHeight = widgetHeight(widget) - oldHeight;
5886
+ if (dHeight)
5887
+ { updateLineHeight(line, line.height + dHeight); }
5888
+ }
5889
+ signalLater(cm, "markerChanged", cm, this$1);
5890
+ });
5891
+ };
5892
+
5893
+ TextMarker.prototype.attachLine = function (line) {
5894
+ if (!this.lines.length && this.doc.cm) {
5895
+ var op = this.doc.cm.curOp;
5896
+ if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
5897
+ { (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this); }
5898
+ }
5899
+ this.lines.push(line);
5900
+ };
5901
+
5902
+ TextMarker.prototype.detachLine = function (line) {
5903
+ this.lines.splice(indexOf(this.lines, line), 1);
5904
+ if (!this.lines.length && this.doc.cm) {
5905
+ var op = this.doc.cm.curOp
5906
+ ;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this);
5907
+ }
5908
+ };
5909
+ eventMixin(TextMarker);
5910
+
5911
+ // Create a marker, wire it up to the right lines, and
5912
+ function markText(doc, from, to, options, type) {
5913
+ // Shared markers (across linked documents) are handled separately
5914
+ // (markTextShared will call out to this again, once per
5915
+ // document).
5916
+ if (options && options.shared) { return markTextShared(doc, from, to, options, type) }
5917
+ // Ensure we are in an operation.
5918
+ if (doc.cm && !doc.cm.curOp) { return operation(doc.cm, markText)(doc, from, to, options, type) }
5919
+
5920
+ var marker = new TextMarker(doc, type), diff = cmp(from, to);
5921
+ if (options) { copyObj(options, marker, false); }
5922
+ // Don't connect empty markers unless clearWhenEmpty is false
5923
+ if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)
5924
+ { return marker }
5925
+ if (marker.replacedWith) {
5926
+ // Showing up as a widget implies collapsed (widget replaces text)
5927
+ marker.collapsed = true;
5928
+ marker.widgetNode = eltP("span", [marker.replacedWith], "CodeMirror-widget");
5929
+ if (!options.handleMouseEvents) { marker.widgetNode.setAttribute("cm-ignore-events", "true"); }
5930
+ if (options.insertLeft) { marker.widgetNode.insertLeft = true; }
5931
+ }
5932
+ if (marker.collapsed) {
5933
+ if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||
5934
+ from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))
5935
+ { throw new Error("Inserting collapsed marker partially overlapping an existing one") }
5936
+ seeCollapsedSpans();
5937
+ }
5938
+
5939
+ if (marker.addToHistory)
5940
+ { addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN); }
5941
+
5942
+ var curLine = from.line, cm = doc.cm, updateMaxLine;
5943
+ doc.iter(curLine, to.line + 1, function (line) {
5944
+ if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)
5945
+ { updateMaxLine = true; }
5946
+ if (marker.collapsed && curLine != from.line) { updateLineHeight(line, 0); }
5947
+ addMarkedSpan(line, new MarkedSpan(marker,
5948
+ curLine == from.line ? from.ch : null,
5949
+ curLine == to.line ? to.ch : null));
5950
+ ++curLine;
5951
+ });
5952
+ // lineIsHidden depends on the presence of the spans, so needs a second pass
5953
+ if (marker.collapsed) { doc.iter(from.line, to.line + 1, function (line) {
5954
+ if (lineIsHidden(doc, line)) { updateLineHeight(line, 0); }
5955
+ }); }
5956
+
5957
+ if (marker.clearOnEnter) { on(marker, "beforeCursorEnter", function () { return marker.clear(); }); }
5958
+
5959
+ if (marker.readOnly) {
5960
+ seeReadOnlySpans();
5961
+ if (doc.history.done.length || doc.history.undone.length)
5962
+ { doc.clearHistory(); }
5963
+ }
5964
+ if (marker.collapsed) {
5965
+ marker.id = ++nextMarkerId;
5966
+ marker.atomic = true;
5967
+ }
5968
+ if (cm) {
5969
+ // Sync editor state
5970
+ if (updateMaxLine) { cm.curOp.updateMaxLine = true; }
5971
+ if (marker.collapsed)
5972
+ { regChange(cm, from.line, to.line + 1); }
5973
+ else if (marker.className || marker.startStyle || marker.endStyle || marker.css ||
5974
+ marker.attributes || marker.title)
5975
+ { for (var i = from.line; i <= to.line; i++) { regLineChange(cm, i, "text"); } }
5976
+ if (marker.atomic) { reCheckSelection(cm.doc); }
5977
+ signalLater(cm, "markerAdded", cm, marker);
5978
+ }
5979
+ return marker
5980
+ }
5981
+
5982
+ // SHARED TEXTMARKERS
5983
+
5984
+ // A shared marker spans multiple linked documents. It is
5985
+ // implemented as a meta-marker-object controlling multiple normal
5986
+ // markers.
5987
+ var SharedTextMarker = function(markers, primary) {
5988
+ var this$1 = this;
5989
+
5990
+ this.markers = markers;
5991
+ this.primary = primary;
5992
+ for (var i = 0; i < markers.length; ++i)
5993
+ { markers[i].parent = this$1; }
5994
+ };
5995
+
5996
+ SharedTextMarker.prototype.clear = function () {
5997
+ var this$1 = this;
5998
+
5999
+ if (this.explicitlyCleared) { return }
6000
+ this.explicitlyCleared = true;
6001
+ for (var i = 0; i < this.markers.length; ++i)
6002
+ { this$1.markers[i].clear(); }
6003
+ signalLater(this, "clear");
6004
+ };
6005
+
6006
+ SharedTextMarker.prototype.find = function (side, lineObj) {
6007
+ return this.primary.find(side, lineObj)
6008
+ };
6009
+ eventMixin(SharedTextMarker);
6010
+
6011
+ function markTextShared(doc, from, to, options, type) {
6012
+ options = copyObj(options);
6013
+ options.shared = false;
6014
+ var markers = [markText(doc, from, to, options, type)], primary = markers[0];
6015
+ var widget = options.widgetNode;
6016
+ linkedDocs(doc, function (doc) {
6017
+ if (widget) { options.widgetNode = widget.cloneNode(true); }
6018
+ markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type));
6019
+ for (var i = 0; i < doc.linked.length; ++i)
6020
+ { if (doc.linked[i].isParent) { return } }
6021
+ primary = lst(markers);
6022
+ });
6023
+ return new SharedTextMarker(markers, primary)
6024
+ }
6025
+
6026
+ function findSharedMarkers(doc) {
6027
+ return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), function (m) { return m.parent; })
6028
+ }
6029
+
6030
+ function copySharedMarkers(doc, markers) {
6031
+ for (var i = 0; i < markers.length; i++) {
6032
+ var marker = markers[i], pos = marker.find();
6033
+ var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to);
6034
+ if (cmp(mFrom, mTo)) {
6035
+ var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type);
6036
+ marker.markers.push(subMark);
6037
+ subMark.parent = marker;
6038
+ }
6039
+ }
6040
+ }
6041
+
6042
+ function detachSharedMarkers(markers) {
6043
+ var loop = function ( i ) {
6044
+ var marker = markers[i], linked = [marker.primary.doc];
6045
+ linkedDocs(marker.primary.doc, function (d) { return linked.push(d); });
6046
+ for (var j = 0; j < marker.markers.length; j++) {
6047
+ var subMarker = marker.markers[j];
6048
+ if (indexOf(linked, subMarker.doc) == -1) {
6049
+ subMarker.parent = null;
6050
+ marker.markers.splice(j--, 1);
6051
+ }
6052
+ }
6053
+ };
6054
+
6055
+ for (var i = 0; i < markers.length; i++) loop( i );
6056
+ }
6057
+
6058
+ var nextDocId = 0;
6059
+ var Doc = function(text, mode, firstLine, lineSep, direction) {
6060
+ if (!(this instanceof Doc)) { return new Doc(text, mode, firstLine, lineSep, direction) }
6061
+ if (firstLine == null) { firstLine = 0; }
6062
+
6063
+ BranchChunk.call(this, [new LeafChunk([new Line("", null)])]);
6064
+ this.first = firstLine;
6065
+ this.scrollTop = this.scrollLeft = 0;
6066
+ this.cantEdit = false;
6067
+ this.cleanGeneration = 1;
6068
+ this.modeFrontier = this.highlightFrontier = firstLine;
6069
+ var start = Pos(firstLine, 0);
6070
+ this.sel = simpleSelection(start);
6071
+ this.history = new History(null);
6072
+ this.id = ++nextDocId;
6073
+ this.modeOption = mode;
6074
+ this.lineSep = lineSep;
6075
+ this.direction = (direction == "rtl") ? "rtl" : "ltr";
6076
+ this.extend = false;
6077
+
6078
+ if (typeof text == "string") { text = this.splitLines(text); }
6079
+ updateDoc(this, {from: start, to: start, text: text});
6080
+ setSelection(this, simpleSelection(start), sel_dontScroll);
6081
+ };
6082
+
6083
+ Doc.prototype = createObj(BranchChunk.prototype, {
6084
+ constructor: Doc,
6085
+ // Iterate over the document. Supports two forms -- with only one
6086
+ // argument, it calls that for each line in the document. With
6087
+ // three, it iterates over the range given by the first two (with
6088
+ // the second being non-inclusive).
6089
+ iter: function(from, to, op) {
6090
+ if (op) { this.iterN(from - this.first, to - from, op); }
6091
+ else { this.iterN(this.first, this.first + this.size, from); }
6092
+ },
6093
+
6094
+ // Non-public interface for adding and removing lines.
6095
+ insert: function(at, lines) {
6096
+ var height = 0;
6097
+ for (var i = 0; i < lines.length; ++i) { height += lines[i].height; }
6098
+ this.insertInner(at - this.first, lines, height);
6099
+ },
6100
+ remove: function(at, n) { this.removeInner(at - this.first, n); },
6101
+
6102
+ // From here, the methods are part of the public interface. Most
6103
+ // are also available from CodeMirror (editor) instances.
6104
+
6105
+ getValue: function(lineSep) {
6106
+ var lines = getLines(this, this.first, this.first + this.size);
6107
+ if (lineSep === false) { return lines }
6108
+ return lines.join(lineSep || this.lineSeparator())
6109
+ },
6110
+ setValue: docMethodOp(function(code) {
6111
+ var top = Pos(this.first, 0), last = this.first + this.size - 1;
6112
+ makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),
6113
+ text: this.splitLines(code), origin: "setValue", full: true}, true);
6114
+ if (this.cm) { scrollToCoords(this.cm, 0, 0); }
6115
+ setSelection(this, simpleSelection(top), sel_dontScroll);
6116
+ }),
6117
+ replaceRange: function(code, from, to, origin) {
6118
+ from = clipPos(this, from);
6119
+ to = to ? clipPos(this, to) : from;
6120
+ replaceRange(this, code, from, to, origin);
6121
+ },
6122
+ getRange: function(from, to, lineSep) {
6123
+ var lines = getBetween(this, clipPos(this, from), clipPos(this, to));
6124
+ if (lineSep === false) { return lines }
6125
+ return lines.join(lineSep || this.lineSeparator())
6126
+ },
6127
+
6128
+ getLine: function(line) {var l = this.getLineHandle(line); return l && l.text},
6129
+
6130
+ getLineHandle: function(line) {if (isLine(this, line)) { return getLine(this, line) }},
6131
+ getLineNumber: function(line) {return lineNo(line)},
6132
+
6133
+ getLineHandleVisualStart: function(line) {
6134
+ if (typeof line == "number") { line = getLine(this, line); }
6135
+ return visualLine(line)
6136
+ },
6137
+
6138
+ lineCount: function() {return this.size},
6139
+ firstLine: function() {return this.first},
6140
+ lastLine: function() {return this.first + this.size - 1},
6141
+
6142
+ clipPos: function(pos) {return clipPos(this, pos)},
6143
+
6144
+ getCursor: function(start) {
6145
+ var range$$1 = this.sel.primary(), pos;
6146
+ if (start == null || start == "head") { pos = range$$1.head; }
6147
+ else if (start == "anchor") { pos = range$$1.anchor; }
6148
+ else if (start == "end" || start == "to" || start === false) { pos = range$$1.to(); }
6149
+ else { pos = range$$1.from(); }
6150
+ return pos
6151
+ },
6152
+ listSelections: function() { return this.sel.ranges },
6153
+ somethingSelected: function() {return this.sel.somethingSelected()},
6154
+
6155
+ setCursor: docMethodOp(function(line, ch, options) {
6156
+ setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options);
6157
+ }),
6158
+ setSelection: docMethodOp(function(anchor, head, options) {
6159
+ setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options);
6160
+ }),
6161
+ extendSelection: docMethodOp(function(head, other, options) {
6162
+ extendSelection(this, clipPos(this, head), other && clipPos(this, other), options);
6163
+ }),
6164
+ extendSelections: docMethodOp(function(heads, options) {
6165
+ extendSelections(this, clipPosArray(this, heads), options);
6166
+ }),
6167
+ extendSelectionsBy: docMethodOp(function(f, options) {
6168
+ var heads = map(this.sel.ranges, f);
6169
+ extendSelections(this, clipPosArray(this, heads), options);
6170
+ }),
6171
+ setSelections: docMethodOp(function(ranges, primary, options) {
6172
+ var this$1 = this;
6173
+
6174
+ if (!ranges.length) { return }
6175
+ var out = [];
6176
+ for (var i = 0; i < ranges.length; i++)
6177
+ { out[i] = new Range(clipPos(this$1, ranges[i].anchor),
6178
+ clipPos(this$1, ranges[i].head)); }
6179
+ if (primary == null) { primary = Math.min(ranges.length - 1, this.sel.primIndex); }
6180
+ setSelection(this, normalizeSelection(this.cm, out, primary), options);
6181
+ }),
6182
+ addSelection: docMethodOp(function(anchor, head, options) {
6183
+ var ranges = this.sel.ranges.slice(0);
6184
+ ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)));
6185
+ setSelection(this, normalizeSelection(this.cm, ranges, ranges.length - 1), options);
6186
+ }),
6187
+
6188
+ getSelection: function(lineSep) {
6189
+ var this$1 = this;
6190
+
6191
+ var ranges = this.sel.ranges, lines;
6192
+ for (var i = 0; i < ranges.length; i++) {
6193
+ var sel = getBetween(this$1, ranges[i].from(), ranges[i].to());
6194
+ lines = lines ? lines.concat(sel) : sel;
6195
+ }
6196
+ if (lineSep === false) { return lines }
6197
+ else { return lines.join(lineSep || this.lineSeparator()) }
6198
+ },
6199
+ getSelections: function(lineSep) {
6200
+ var this$1 = this;
6201
+
6202
+ var parts = [], ranges = this.sel.ranges;
6203
+ for (var i = 0; i < ranges.length; i++) {
6204
+ var sel = getBetween(this$1, ranges[i].from(), ranges[i].to());
6205
+ if (lineSep !== false) { sel = sel.join(lineSep || this$1.lineSeparator()); }
6206
+ parts[i] = sel;
6207
+ }
6208
+ return parts
6209
+ },
6210
+ replaceSelection: function(code, collapse, origin) {
6211
+ var dup = [];
6212
+ for (var i = 0; i < this.sel.ranges.length; i++)
6213
+ { dup[i] = code; }
6214
+ this.replaceSelections(dup, collapse, origin || "+input");
6215
+ },
6216
+ replaceSelections: docMethodOp(function(code, collapse, origin) {
6217
+ var this$1 = this;
6218
+
6219
+ var changes = [], sel = this.sel;
6220
+ for (var i = 0; i < sel.ranges.length; i++) {
6221
+ var range$$1 = sel.ranges[i];
6222
+ changes[i] = {from: range$$1.from(), to: range$$1.to(), text: this$1.splitLines(code[i]), origin: origin};
6223
+ }
6224
+ var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse);
6225
+ for (var i$1 = changes.length - 1; i$1 >= 0; i$1--)
6226
+ { makeChange(this$1, changes[i$1]); }
6227
+ if (newSel) { setSelectionReplaceHistory(this, newSel); }
6228
+ else if (this.cm) { ensureCursorVisible(this.cm); }
6229
+ }),
6230
+ undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}),
6231
+ redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}),
6232
+ undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}),
6233
+ redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}),
6234
+
6235
+ setExtending: function(val) {this.extend = val;},
6236
+ getExtending: function() {return this.extend},
6237
+
6238
+ historySize: function() {
6239
+ var hist = this.history, done = 0, undone = 0;
6240
+ for (var i = 0; i < hist.done.length; i++) { if (!hist.done[i].ranges) { ++done; } }
6241
+ for (var i$1 = 0; i$1 < hist.undone.length; i$1++) { if (!hist.undone[i$1].ranges) { ++undone; } }
6242
+ return {undo: done, redo: undone}
6243
+ },
6244
+ clearHistory: function() {this.history = new History(this.history.maxGeneration);},
6245
+
6246
+ markClean: function() {
6247
+ this.cleanGeneration = this.changeGeneration(true);
6248
+ },
6249
+ changeGeneration: function(forceSplit) {
6250
+ if (forceSplit)
6251
+ { this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null; }
6252
+ return this.history.generation
6253
+ },
6254
+ isClean: function (gen) {
6255
+ return this.history.generation == (gen || this.cleanGeneration)
6256
+ },
6257
+
6258
+ getHistory: function() {
6259
+ return {done: copyHistoryArray(this.history.done),
6260
+ undone: copyHistoryArray(this.history.undone)}
6261
+ },
6262
+ setHistory: function(histData) {
6263
+ var hist = this.history = new History(this.history.maxGeneration);
6264
+ hist.done = copyHistoryArray(histData.done.slice(0), null, true);
6265
+ hist.undone = copyHistoryArray(histData.undone.slice(0), null, true);
6266
+ },
6267
+
6268
+ setGutterMarker: docMethodOp(function(line, gutterID, value) {
6269
+ return changeLine(this, line, "gutter", function (line) {
6270
+ var markers = line.gutterMarkers || (line.gutterMarkers = {});
6271
+ markers[gutterID] = value;
6272
+ if (!value && isEmpty(markers)) { line.gutterMarkers = null; }
6273
+ return true
6274
+ })
6275
+ }),
6276
+
6277
+ clearGutter: docMethodOp(function(gutterID) {
6278
+ var this$1 = this;
6279
+
6280
+ this.iter(function (line) {
6281
+ if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
6282
+ changeLine(this$1, line, "gutter", function () {
6283
+ line.gutterMarkers[gutterID] = null;
6284
+ if (isEmpty(line.gutterMarkers)) { line.gutterMarkers = null; }
6285
+ return true
6286
+ });
6287
+ }
6288
+ });
6289
+ }),
6290
+
6291
+ lineInfo: function(line) {
6292
+ var n;
6293
+ if (typeof line == "number") {
6294
+ if (!isLine(this, line)) { return null }
6295
+ n = line;
6296
+ line = getLine(this, line);
6297
+ if (!line) { return null }
6298
+ } else {
6299
+ n = lineNo(line);
6300
+ if (n == null) { return null }
6301
+ }
6302
+ return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,
6303
+ textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,
6304
+ widgets: line.widgets}
6305
+ },
6306
+
6307
+ addLineClass: docMethodOp(function(handle, where, cls) {
6308
+ return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
6309
+ var prop = where == "text" ? "textClass"
6310
+ : where == "background" ? "bgClass"
6311
+ : where == "gutter" ? "gutterClass" : "wrapClass";
6312
+ if (!line[prop]) { line[prop] = cls; }
6313
+ else if (classTest(cls).test(line[prop])) { return false }
6314
+ else { line[prop] += " " + cls; }
6315
+ return true
6316
+ })
6317
+ }),
6318
+ removeLineClass: docMethodOp(function(handle, where, cls) {
6319
+ return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
6320
+ var prop = where == "text" ? "textClass"
6321
+ : where == "background" ? "bgClass"
6322
+ : where == "gutter" ? "gutterClass" : "wrapClass";
6323
+ var cur = line[prop];
6324
+ if (!cur) { return false }
6325
+ else if (cls == null) { line[prop] = null; }
6326
+ else {
6327
+ var found = cur.match(classTest(cls));
6328
+ if (!found) { return false }
6329
+ var end = found.index + found[0].length;
6330
+ line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null;
6331
+ }
6332
+ return true
6333
+ })
6334
+ }),
6335
+
6336
+ addLineWidget: docMethodOp(function(handle, node, options) {
6337
+ return addLineWidget(this, handle, node, options)
6338
+ }),
6339
+ removeLineWidget: function(widget) { widget.clear(); },
6340
+
6341
+ markText: function(from, to, options) {
6342
+ return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range")
6343
+ },
6344
+ setBookmark: function(pos, options) {
6345
+ var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),
6346
+ insertLeft: options && options.insertLeft,
6347
+ clearWhenEmpty: false, shared: options && options.shared,
6348
+ handleMouseEvents: options && options.handleMouseEvents};
6349
+ pos = clipPos(this, pos);
6350
+ return markText(this, pos, pos, realOpts, "bookmark")
6351
+ },
6352
+ findMarksAt: function(pos) {
6353
+ pos = clipPos(this, pos);
6354
+ var markers = [], spans = getLine(this, pos.line).markedSpans;
6355
+ if (spans) { for (var i = 0; i < spans.length; ++i) {
6356
+ var span = spans[i];
6357
+ if ((span.from == null || span.from <= pos.ch) &&
6358
+ (span.to == null || span.to >= pos.ch))
6359
+ { markers.push(span.marker.parent || span.marker); }
6360
+ } }
6361
+ return markers
6362
+ },
6363
+ findMarks: function(from, to, filter) {
6364
+ from = clipPos(this, from); to = clipPos(this, to);
6365
+ var found = [], lineNo$$1 = from.line;
6366
+ this.iter(from.line, to.line + 1, function (line) {
6367
+ var spans = line.markedSpans;
6368
+ if (spans) { for (var i = 0; i < spans.length; i++) {
6369
+ var span = spans[i];
6370
+ if (!(span.to != null && lineNo$$1 == from.line && from.ch >= span.to ||
6371
+ span.from == null && lineNo$$1 != from.line ||
6372
+ span.from != null && lineNo$$1 == to.line && span.from >= to.ch) &&
6373
+ (!filter || filter(span.marker)))
6374
+ { found.push(span.marker.parent || span.marker); }
6375
+ } }
6376
+ ++lineNo$$1;
6377
+ });
6378
+ return found
6379
+ },
6380
+ getAllMarks: function() {
6381
+ var markers = [];
6382
+ this.iter(function (line) {
6383
+ var sps = line.markedSpans;
6384
+ if (sps) { for (var i = 0; i < sps.length; ++i)
6385
+ { if (sps[i].from != null) { markers.push(sps[i].marker); } } }
6386
+ });
6387
+ return markers
6388
+ },
6389
+
6390
+ posFromIndex: function(off) {
6391
+ var ch, lineNo$$1 = this.first, sepSize = this.lineSeparator().length;
6392
+ this.iter(function (line) {
6393
+ var sz = line.text.length + sepSize;
6394
+ if (sz > off) { ch = off; return true }
6395
+ off -= sz;
6396
+ ++lineNo$$1;
6397
+ });
6398
+ return clipPos(this, Pos(lineNo$$1, ch))
6399
+ },
6400
+ indexFromPos: function (coords) {
6401
+ coords = clipPos(this, coords);
6402
+ var index = coords.ch;
6403
+ if (coords.line < this.first || coords.ch < 0) { return 0 }
6404
+ var sepSize = this.lineSeparator().length;
6405
+ this.iter(this.first, coords.line, function (line) { // iter aborts when callback returns a truthy value
6406
+ index += line.text.length + sepSize;
6407
+ });
6408
+ return index
6409
+ },
6410
+
6411
+ copy: function(copyHistory) {
6412
+ var doc = new Doc(getLines(this, this.first, this.first + this.size),
6413
+ this.modeOption, this.first, this.lineSep, this.direction);
6414
+ doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft;
6415
+ doc.sel = this.sel;
6416
+ doc.extend = false;
6417
+ if (copyHistory) {
6418
+ doc.history.undoDepth = this.history.undoDepth;
6419
+ doc.setHistory(this.getHistory());
6420
+ }
6421
+ return doc
6422
+ },
6423
+
6424
+ linkedDoc: function(options) {
6425
+ if (!options) { options = {}; }
6426
+ var from = this.first, to = this.first + this.size;
6427
+ if (options.from != null && options.from > from) { from = options.from; }
6428
+ if (options.to != null && options.to < to) { to = options.to; }
6429
+ var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep, this.direction);
6430
+ if (options.sharedHist) { copy.history = this.history
6431
+ ; }(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist});
6432
+ copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}];
6433
+ copySharedMarkers(copy, findSharedMarkers(this));
6434
+ return copy
6435
+ },
6436
+ unlinkDoc: function(other) {
6437
+ var this$1 = this;
6438
+
6439
+ if (other instanceof CodeMirror) { other = other.doc; }
6440
+ if (this.linked) { for (var i = 0; i < this.linked.length; ++i) {
6441
+ var link = this$1.linked[i];
6442
+ if (link.doc != other) { continue }
6443
+ this$1.linked.splice(i, 1);
6444
+ other.unlinkDoc(this$1);
6445
+ detachSharedMarkers(findSharedMarkers(this$1));
6446
+ break
6447
+ } }
6448
+ // If the histories were shared, split them again
6449
+ if (other.history == this.history) {
6450
+ var splitIds = [other.id];
6451
+ linkedDocs(other, function (doc) { return splitIds.push(doc.id); }, true);
6452
+ other.history = new History(null);
6453
+ other.history.done = copyHistoryArray(this.history.done, splitIds);
6454
+ other.history.undone = copyHistoryArray(this.history.undone, splitIds);
6455
+ }
6456
+ },
6457
+ iterLinkedDocs: function(f) {linkedDocs(this, f);},
6458
+
6459
+ getMode: function() {return this.mode},
6460
+ getEditor: function() {return this.cm},
6461
+
6462
+ splitLines: function(str) {
6463
+ if (this.lineSep) { return str.split(this.lineSep) }
6464
+ return splitLinesAuto(str)
6465
+ },
6466
+ lineSeparator: function() { return this.lineSep || "\n" },
6467
+
6468
+ setDirection: docMethodOp(function (dir) {
6469
+ if (dir != "rtl") { dir = "ltr"; }
6470
+ if (dir == this.direction) { return }
6471
+ this.direction = dir;
6472
+ this.iter(function (line) { return line.order = null; });
6473
+ if (this.cm) { directionChanged(this.cm); }
6474
+ })
6475
+ });
6476
+
6477
+ // Public alias.
6478
+ Doc.prototype.eachLine = Doc.prototype.iter;
6479
+
6480
+ // Kludge to work around strange IE behavior where it'll sometimes
6481
+ // re-fire a series of drag-related events right after the drop (#1551)
6482
+ var lastDrop = 0;
6483
+
6484
+ function onDrop(e) {
6485
+ var cm = this;
6486
+ clearDragCursor(cm);
6487
+ if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))
6488
+ { return }
6489
+ e_preventDefault(e);
6490
+ if (ie) { lastDrop = +new Date; }
6491
+ var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files;
6492
+ if (!pos || cm.isReadOnly()) { return }
6493
+ // Might be a file drop, in which case we simply extract the text
6494
+ // and insert it.
6495
+ if (files && files.length && window.FileReader && window.File) {
6496
+ var n = files.length, text = Array(n), read = 0;
6497
+ var loadFile = function (file, i) {
6498
+ if (cm.options.allowDropFileTypes &&
6499
+ indexOf(cm.options.allowDropFileTypes, file.type) == -1)
6500
+ { return }
6501
+
6502
+ var reader = new FileReader;
6503
+ reader.onload = operation(cm, function () {
6504
+ var content = reader.result;
6505
+ if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) { content = ""; }
6506
+ text[i] = content;
6507
+ if (++read == n) {
6508
+ pos = clipPos(cm.doc, pos);
6509
+ var change = {from: pos, to: pos,
6510
+ text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())),
6511
+ origin: "paste"};
6512
+ makeChange(cm.doc, change);
6513
+ setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change)));
6514
+ }
6515
+ });
6516
+ reader.readAsText(file);
6517
+ };
6518
+ for (var i = 0; i < n; ++i) { loadFile(files[i], i); }
6519
+ } else { // Normal drop
6520
+ // Don't do a replace if the drop happened inside of the selected text.
6521
+ if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {
6522
+ cm.state.draggingText(e);
6523
+ // Ensure the editor is re-focused
6524
+ setTimeout(function () { return cm.display.input.focus(); }, 20);
6525
+ return
6526
+ }
6527
+ try {
6528
+ var text$1 = e.dataTransfer.getData("Text");
6529
+ if (text$1) {
6530
+ var selected;
6531
+ if (cm.state.draggingText && !cm.state.draggingText.copy)
6532
+ { selected = cm.listSelections(); }
6533
+ setSelectionNoUndo(cm.doc, simpleSelection(pos, pos));
6534
+ if (selected) { for (var i$1 = 0; i$1 < selected.length; ++i$1)
6535
+ { replaceRange(cm.doc, "", selected[i$1].anchor, selected[i$1].head, "drag"); } }
6536
+ cm.replaceSelection(text$1, "around", "paste");
6537
+ cm.display.input.focus();
6538
  }
6539
+ }
6540
+ catch(e){}
 
 
 
 
 
 
 
 
 
6541
  }
6542
+ }
6543
+
6544
+ function onDragStart(cm, e) {
6545
+ if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return }
6546
+ if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) { return }
6547
+
6548
+ e.dataTransfer.setData("Text", cm.getSelection());
6549
+ e.dataTransfer.effectAllowed = "copyMove";
6550
+
6551
+ // Use dummy image instead of default browsers image.
6552
+ // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.
6553
+ if (e.dataTransfer.setDragImage && !safari) {
6554
+ var img = elt("img", null, null, "position: fixed; left: 0; top: 0;");
6555
+ img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
6556
+ if (presto) {
6557
+ img.width = img.height = 1;
6558
+ cm.display.wrapper.appendChild(img);
6559
+ // Force a relayout, or Opera won't use our image for some obscure reason
6560
+ img._top = img.offsetTop;
6561
+ }
6562
+ e.dataTransfer.setDragImage(img, 0, 0);
6563
+ if (presto) { img.parentNode.removeChild(img); }
6564
+ }
6565
+ }
6566
+
6567
+ function onDragOver(cm, e) {
6568
+ var pos = posFromMouse(cm, e);
6569
+ if (!pos) { return }
6570
+ var frag = document.createDocumentFragment();
6571
+ drawSelectionCursor(cm, pos, frag);
6572
+ if (!cm.display.dragCursor) {
6573
+ cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors");
6574
+ cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv);
6575
+ }
6576
+ removeChildrenAndAdd(cm.display.dragCursor, frag);
6577
+ }
6578
+
6579
+ function clearDragCursor(cm) {
6580
+ if (cm.display.dragCursor) {
6581
+ cm.display.lineSpace.removeChild(cm.display.dragCursor);
6582
+ cm.display.dragCursor = null;
6583
+ }
6584
+ }
6585
+
6586
+ // These must be handled carefully, because naively registering a
6587
+ // handler for each editor will cause the editors to never be
6588
+ // garbage collected.
6589
+
6590
+ function forEachCodeMirror(f) {
6591
+ if (!document.getElementsByClassName) { return }
6592
+ var byClass = document.getElementsByClassName("CodeMirror"), editors = [];
6593
+ for (var i = 0; i < byClass.length; i++) {
6594
+ var cm = byClass[i].CodeMirror;
6595
+ if (cm) { editors.push(cm); }
6596
+ }
6597
+ if (editors.length) { editors[0].operation(function () {
6598
+ for (var i = 0; i < editors.length; i++) { f(editors[i]); }
6599
+ }); }
6600
+ }
6601
+
6602
+ var globalsRegistered = false;
6603
+ function ensureGlobalHandlers() {
6604
+ if (globalsRegistered) { return }
6605
+ registerGlobalHandlers();
6606
+ globalsRegistered = true;
6607
+ }
6608
+ function registerGlobalHandlers() {
6609
+ // When the window resizes, we need to refresh active editors.
6610
+ var resizeTimer;
6611
+ on(window, "resize", function () {
6612
+ if (resizeTimer == null) { resizeTimer = setTimeout(function () {
6613
+ resizeTimer = null;
6614
+ forEachCodeMirror(onResize);
6615
+ }, 100); }
6616
+ });
6617
+ // When the window loses focus, we want to show the editor as blurred
6618
+ on(window, "blur", function () { return forEachCodeMirror(onBlur); });
6619
+ }
6620
+ // Called when the window resizes
6621
+ function onResize(cm) {
6622
+ var d = cm.display;
6623
+ // Might be a text scaling operation, clear size caches.
6624
+ d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
6625
+ d.scrollbarsClipped = false;
6626
+ cm.setSize();
6627
+ }
6628
+
6629
+ var keyNames = {
6630
+ 3: "Pause", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
6631
+ 19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
6632
+ 36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
6633
+ 46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod",
6634
+ 106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 127: "Delete", 145: "ScrollLock",
6635
+ 173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
6636
+ 221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete",
6637
+ 63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"
6638
+ };
6639
+
6640
+ // Number keys
6641
+ for (var i = 0; i < 10; i++) { keyNames[i + 48] = keyNames[i + 96] = String(i); }
6642
+ // Alphabetic keys
6643
+ for (var i$1 = 65; i$1 <= 90; i$1++) { keyNames[i$1] = String.fromCharCode(i$1); }
6644
+ // Function keys
6645
+ for (var i$2 = 1; i$2 <= 12; i$2++) { keyNames[i$2 + 111] = keyNames[i$2 + 63235] = "F" + i$2; }
6646
+
6647
+ var keyMap = {};
6648
+
6649
+ keyMap.basic = {
6650
+ "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
6651
+ "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
6652
+ "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore",
6653
+ "Tab": "defaultTab", "Shift-Tab": "indentAuto",
6654
+ "Enter": "newlineAndIndent", "Insert": "toggleOverwrite",
6655
+ "Esc": "singleSelection"
6656
+ };
6657
+ // Note that the save and find-related commands aren't defined by
6658
+ // default. User code or addons can define them. Unknown commands
6659
+ // are simply ignored.
6660
+ keyMap.pcDefault = {
6661
+ "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
6662
+ "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown",
6663
+ "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
6664
+ "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find",
6665
+ "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
6666
+ "Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
6667
+ "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection",
6668
+ "fallthrough": "basic"
6669
+ };
6670
+ // Very basic readline/emacs-style bindings, which are standard on Mac.
6671
+ keyMap.emacsy = {
6672
+ "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
6673
+ "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
6674
+ "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore",
6675
+ "Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars",
6676
+ "Ctrl-O": "openLine"
6677
+ };
6678
+ keyMap.macDefault = {
6679
+ "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
6680
+ "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft",
6681
+ "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore",
6682
+ "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find",
6683
+ "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
6684
+ "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight",
6685
+ "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd",
6686
+ "fallthrough": ["basic", "emacsy"]
6687
+ };
6688
+ keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;
6689
+
6690
+ // KEYMAP DISPATCH
6691
+
6692
+ function normalizeKeyName(name) {
6693
+ var parts = name.split(/-(?!$)/);
6694
+ name = parts[parts.length - 1];
6695
+ var alt, ctrl, shift, cmd;
6696
+ for (var i = 0; i < parts.length - 1; i++) {
6697
+ var mod = parts[i];
6698
+ if (/^(cmd|meta|m)$/i.test(mod)) { cmd = true; }
6699
+ else if (/^a(lt)?$/i.test(mod)) { alt = true; }
6700
+ else if (/^(c|ctrl|control)$/i.test(mod)) { ctrl = true; }
6701
+ else if (/^s(hift)?$/i.test(mod)) { shift = true; }
6702
+ else { throw new Error("Unrecognized modifier name: " + mod) }
6703
+ }
6704
+ if (alt) { name = "Alt-" + name; }
6705
+ if (ctrl) { name = "Ctrl-" + name; }
6706
+ if (cmd) { name = "Cmd-" + name; }
6707
+ if (shift) { name = "Shift-" + name; }
6708
+ return name
6709
+ }
6710
+
6711
+ // This is a kludge to keep keymaps mostly working as raw objects
6712
+ // (backwards compatibility) while at the same time support features
6713
+ // like normalization and multi-stroke key bindings. It compiles a
6714
+ // new normalized keymap, and then updates the old object to reflect
6715
+ // this.
6716
+ function normalizeKeyMap(keymap) {
6717
+ var copy = {};
6718
+ for (var keyname in keymap) { if (keymap.hasOwnProperty(keyname)) {
6719
+ var value = keymap[keyname];
6720
+ if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) { continue }
6721
+ if (value == "...") { delete keymap[keyname]; continue }
6722
+
6723
+ var keys = map(keyname.split(" "), normalizeKeyName);
6724
+ for (var i = 0; i < keys.length; i++) {
6725
+ var val = (void 0), name = (void 0);
6726
+ if (i == keys.length - 1) {
6727
+ name = keys.join(" ");
6728
+ val = value;
6729
+ } else {
6730
+ name = keys.slice(0, i + 1).join(" ");
6731
+ val = "...";
6732
+ }
6733
+ var prev = copy[name];
6734
+ if (!prev) { copy[name] = val; }
6735
+ else if (prev != val) { throw new Error("Inconsistent bindings for " + name) }
6736
+ }
6737
+ delete keymap[keyname];
6738
+ } }
6739
+ for (var prop in copy) { keymap[prop] = copy[prop]; }
6740
+ return keymap
6741
+ }
6742
+
6743
+ function lookupKey(key, map$$1, handle, context) {
6744
+ map$$1 = getKeyMap(map$$1);
6745
+ var found = map$$1.call ? map$$1.call(key, context) : map$$1[key];
6746
+ if (found === false) { return "nothing" }
6747
+ if (found === "...") { return "multi" }
6748
+ if (found != null && handle(found)) { return "handled" }
6749
+
6750
+ if (map$$1.fallthrough) {
6751
+ if (Object.prototype.toString.call(map$$1.fallthrough) != "[object Array]")
6752
+ { return lookupKey(key, map$$1.fallthrough, handle, context) }
6753
+ for (var i = 0; i < map$$1.fallthrough.length; i++) {
6754
+ var result = lookupKey(key, map$$1.fallthrough[i], handle, context);
6755
+ if (result) { return result }
6756
+ }
 
 
 
 
 
 
 
 
 
 
 
 
 
6757
  }
6758
  }
6759
+
6760
+ // Modifier key presses don't count as 'real' key presses for the
6761
+ // purpose of keymap fallthrough.
6762
+ function isModifierKey(value) {
6763
+ var name = typeof value == "string" ? value : keyNames[value.keyCode];
6764
+ return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod"
6765
+ }
6766
+
6767
+ function addModifierNames(name, event, noShift) {
6768
+ var base = name;
6769
+ if (event.altKey && base != "Alt") { name = "Alt-" + name; }
6770
+ if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") { name = "Ctrl-" + name; }
6771
+ if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Cmd") { name = "Cmd-" + name; }
6772
+ if (!noShift && event.shiftKey && base != "Shift") { name = "Shift-" + name; }
6773
+ return name
6774
+ }
6775
+
6776
+ // Look up the name of a key as indicated by an event object.
6777
+ function keyName(event, noShift) {
6778
+ if (presto && event.keyCode == 34 && event["char"]) { return false }
6779
+ var name = keyNames[event.keyCode];
6780
+ if (name == null || event.altGraphKey) { return false }
6781
+ // Ctrl-ScrollLock has keyCode 3, same as Ctrl-Pause,
6782
+ // so we'll use event.code when available (Chrome 48+, FF 38+, Safari 10.1+)
6783
+ if (event.keyCode == 3 && event.code) { name = event.code; }
6784
+ return addModifierNames(name, event, noShift)
6785
+ }
6786
+
6787
+ function getKeyMap(val) {
6788
+ return typeof val == "string" ? keyMap[val] : val
6789
+ }
6790
+
6791
+ // Helper for deleting text near the selection(s), used to implement
6792
+ // backspace, delete, and similar functionality.
6793
+ function deleteNearSelection(cm, compute) {
6794
+ var ranges = cm.doc.sel.ranges, kill = [];
6795
+ // Build up a set of ranges to kill first, merging overlapping
6796
+ // ranges.
6797
+ for (var i = 0; i < ranges.length; i++) {
6798
+ var toKill = compute(ranges[i]);
6799
+ while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {
6800
+ var replaced = kill.pop();
6801
+ if (cmp(replaced.from, toKill.from) < 0) {
6802
+ toKill.from = replaced.from;
6803
+ break
6804
+ }
6805
  }
6806
+ kill.push(toKill);
6807
  }
6808
+ // Next, remove those actual ranges.
6809
+ runInOp(cm, function () {
6810
+ for (var i = kill.length - 1; i >= 0; i--)
6811
+ { replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete"); }
6812
+ ensureCursorVisible(cm);
6813
+ });
6814
+ }
6815
+
6816
+ function moveCharLogically(line, ch, dir) {
6817
+ var target = skipExtendingChars(line.text, ch + dir, dir);
6818
+ return target < 0 || target > line.text.length ? null : target
6819
  }
 
 
 
 
 
 
 
6820
 
6821
+ function moveLogically(line, start, dir) {
6822
+ var ch = moveCharLogically(line, start.ch, dir);
6823
+ return ch == null ? null : new Pos(start.line, ch, dir < 0 ? "after" : "before")
6824
+ }
6825
+
6826
+ function endOfLine(visually, cm, lineObj, lineNo, dir) {
6827
+ if (visually) {
6828
+ var order = getOrder(lineObj, cm.doc.direction);
6829
+ if (order) {
6830
+ var part = dir < 0 ? lst(order) : order[0];
6831
+ var moveInStorageOrder = (dir < 0) == (part.level == 1);
6832
+ var sticky = moveInStorageOrder ? "after" : "before";
6833
+ var ch;
6834
+ // With a wrapped rtl chunk (possibly spanning multiple bidi parts),
6835
+ // it could be that the last bidi part is not on the last visual line,
6836
+ // since visual lines contain content order-consecutive chunks.
6837
+ // Thus, in rtl, we are looking for the first (content-order) character
6838
+ // in the rtl chunk that is on the last line (that is, the same line
6839
+ // as the last (content-order) character).
6840
+ if (part.level > 0 || cm.doc.direction == "rtl") {
6841
+ var prep = prepareMeasureForLine(cm, lineObj);
6842
+ ch = dir < 0 ? lineObj.text.length - 1 : 0;
6843
+ var targetTop = measureCharPrepared(cm, prep, ch).top;
6844
+ ch = findFirst(function (ch) { return measureCharPrepared(cm, prep, ch).top == targetTop; }, (dir < 0) == (part.level == 1) ? part.from : part.to - 1, ch);
6845
+ if (sticky == "before") { ch = moveCharLogically(lineObj, ch, 1); }
6846
+ } else { ch = dir < 0 ? part.to : part.from; }
6847
+ return new Pos(lineNo, ch, sticky)
6848
+ }
6849
+ }
6850
+ return new Pos(lineNo, dir < 0 ? lineObj.text.length : 0, dir < 0 ? "before" : "after")
6851
+ }
6852
+
6853
+ function moveVisually(cm, line, start, dir) {
6854
+ var bidi = getOrder(line, cm.doc.direction);
6855
+ if (!bidi) { return moveLogically(line, start, dir) }
6856
+ if (start.ch >= line.text.length) {
6857
+ start.ch = line.text.length;
6858
+ start.sticky = "before";
6859
+ } else if (start.ch <= 0) {
6860
+ start.ch = 0;
6861
+ start.sticky = "after";
6862
+ }
6863
+ var partPos = getBidiPartAt(bidi, start.ch, start.sticky), part = bidi[partPos];
6864
+ if (cm.doc.direction == "ltr" && part.level % 2 == 0 && (dir > 0 ? part.to > start.ch : part.from < start.ch)) {
6865
+ // Case 1: We move within an ltr part in an ltr editor. Even with wrapped lines,
6866
+ // nothing interesting happens.
6867
+ return moveLogically(line, start, dir)
6868
+ }
6869
+
6870
+ var mv = function (pos, dir) { return moveCharLogically(line, pos instanceof Pos ? pos.ch : pos, dir); };
6871
+ var prep;
6872
+ var getWrappedLineExtent = function (ch) {
6873
+ if (!cm.options.lineWrapping) { return {begin: 0, end: line.text.length} }
6874
+ prep = prep || prepareMeasureForLine(cm, line);
6875
+ return wrappedLineExtentChar(cm, line, prep, ch)
6876
+ };
6877
+ var wrappedLineExtent = getWrappedLineExtent(start.sticky == "before" ? mv(start, -1) : start.ch);
6878
+
6879
+ if (cm.doc.direction == "rtl" || part.level == 1) {
6880
+ var moveInStorageOrder = (part.level == 1) == (dir < 0);
6881
+ var ch = mv(start, moveInStorageOrder ? 1 : -1);
6882
+ if (ch != null && (!moveInStorageOrder ? ch >= part.from && ch >= wrappedLineExtent.begin : ch <= part.to && ch <= wrappedLineExtent.end)) {
6883
+ // Case 2: We move within an rtl part or in an rtl editor on the same visual line
6884
+ var sticky = moveInStorageOrder ? "before" : "after";
6885
+ return new Pos(start.line, ch, sticky)
6886
+ }
6887
+ }
6888
 
6889
+ // Case 3: Could not move within this bidi part in this visual line, so leave
6890
+ // the current bidi part
 
 
6891
 
6892
+ var searchInVisualLine = function (partPos, dir, wrappedLineExtent) {
6893
+ var getRes = function (ch, moveInStorageOrder) { return moveInStorageOrder
6894
+ ? new Pos(start.line, mv(ch, 1), "before")
6895
+ : new Pos(start.line, ch, "after"); };
6896
+
6897
+ for (; partPos >= 0 && partPos < bidi.length; partPos += dir) {
6898
+ var part = bidi[partPos];
6899
+ var moveInStorageOrder = (dir > 0) == (part.level != 1);
6900
+ var ch = moveInStorageOrder ? wrappedLineExtent.begin : mv(wrappedLineExtent.end, -1);
6901
+ if (part.from <= ch && ch < part.to) { return getRes(ch, moveInStorageOrder) }
6902
+ ch = moveInStorageOrder ? part.from : mv(part.to, -1);
6903
+ if (wrappedLineExtent.begin <= ch && ch < wrappedLineExtent.end) { return getRes(ch, moveInStorageOrder) }
6904
+ }
6905
+ };
6906
+
6907
+ // Case 3a: Look for other bidi parts on the same visual line
6908
+ var res = searchInVisualLine(partPos + dir, dir, wrappedLineExtent);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
6909
  if (res) { return res }
6910
+
6911
+ // Case 3b: Look for other bidi parts on the next visual line
6912
+ var nextCh = dir > 0 ? wrappedLineExtent.end : mv(wrappedLineExtent.begin, -1);
6913
+ if (nextCh != null && !(dir > 0 && nextCh == line.text.length)) {
6914
+ res = searchInVisualLine(dir > 0 ? 0 : bidi.length - 1, dir, getWrappedLineExtent(nextCh));
6915
+ if (res) { return res }
6916
+ }
6917
+
6918
+ // Case 4: Nowhere to move
6919
+ return null
6920
  }
6921