diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..c4e5574 --- /dev/null +++ b/.gitignore @@ -0,0 +1,3 @@ +composer.lock +node_modules +vendor diff --git a/.travis.yml b/.travis.yml new file mode 100644 index 0000000..eaf0b7a --- /dev/null +++ b/.travis.yml @@ -0,0 +1,51 @@ +sudo: false +language: php + +# Cache some data across builds for performance. +cache: + apt: true + directories: + - node_modules + +# Set the default environment. +env: + global: + - WP_TRAVISCI=travis:phpunit + - WP_VERSION=latest + - WP_MULTISITE=1 + +notifications: + email: + on_success: never + on_failure: change + slack: + on_pull_requests: true + on_success: change + on_failure: always + on_start: never + on_cancel: always + rooms: + - wsu-ucomm:n2TLZRJd84rMOMbkKthSEMgS + +branches: + only: + - master + +matrix: + include: + - php: 7.0 + env: WP_TRAVISCI=travis:grunt + +before_script: + - npm --version + - node --version + - nvm install stable + - npm install -g grunt-cli + - npm install + - npm prune + - npm --version + - node --version + +script: + - grunt --version + - grunt default diff --git a/CHANGELOG.md b/CHANGELOG.md index 9e1c635..b7cca07 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -1,5 +1,10 @@ # Changelog +## 2.3.0 (April 17, 2017) + +* Update CodeMirror 5.25.0 +* Reorganize repository to make future library upgrades easier. + ## 2.2.1 (October 27, 2016) * Add support for CodeMirror search, jump to line, etc... diff --git a/Gruntfile.js b/Gruntfile.js new file mode 100644 index 0000000..d3d5460 --- /dev/null +++ b/Gruntfile.js @@ -0,0 +1,40 @@ +module.exports = function( grunt ) { + grunt.initConfig( { + pkg: grunt.file.readJSON( "package.json" ), + + concat: { + code_mirror: { + src: [ + "src/js/codemirror.js", + "src/js/codemirror-css-mode.js" + ], + dest: "src/js/codemirror-temp.js" + } + }, + + uglify: { + code_mirror: { + options: { + banner: '// CodeMirror 5.25.0 - MIT Licensed - https://github.com/codemirror/CodeMirror - Includes CSS module.' + }, + src: "src/js/codemirror-temp.js", + dest: "js/codemirror.min.js" + } + }, + + clean: { + options: { + force: true + }, + temp: [ "src/js/codemirror-temp.js" ] + } + + } ); + + grunt.loadNpmTasks( "grunt-contrib-concat" ); + grunt.loadNpmTasks( "grunt-contrib-clean" ); + grunt.loadNpmTasks( "grunt-contrib-uglify" ); + + // Default task(s). + grunt.registerTask( "default", [ "concat", "uglify", "clean" ] ); +}; diff --git a/LICENSE b/LICENSE index f2ef51b..0935588 100644 --- a/LICENSE +++ b/LICENSE @@ -1,6 +1,6 @@ WSU Custom CSS -Copyright 2014 by Washington State University +Copyright 2014-2017 by Washington State University This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -26,6 +26,12 @@ permission notices: Jetpack is released under the GPLv2+ license + CodeMirror - In-browser code editor + + https://github.com/codemirror/CodeMirror + + CodeMirror is copyright (C) 2017 by Marijn Haverbeke and others + =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= GNU GENERAL PUBLIC LICENSE @@ -373,4 +379,4 @@ WRITTEN OFFER The source code for any program binaries or compressed scripts that are included with WSU Custom CSS can be freely obtained at the following URL: - https://github.com/washingtonstateuniversity/WSUWP-Plugin-Custom-CSS/pull/8 \ No newline at end of file + https://github.com/washingtonstateuniversity/WSUWP-Plugin-Custom-CSS/pull/8 diff --git a/css/codemirror.css b/css/codemirror.css index 3e8799d..b962b38 100644 --- a/css/codemirror.css +++ b/css/codemirror.css @@ -1,18 +1,10 @@ -/* NOAUTORTL */ - -.rtl .CodeMirror { - direction: ltr; /* code should always be written left to right */ -} - /* BASICS */ + .CodeMirror { /* Set height, width, borders, and global font properties here */ font-family: monospace; height: 300px; -} -.CodeMirror-scroll { - /* Set scrolling behaviour here */ - overflow: auto; + color: black; } /* PADDING */ @@ -41,65 +33,115 @@ min-width: 20px; text-align: right; color: #999; + white-space: nowrap; } +.CodeMirror-guttermarker { color: black; } +.CodeMirror-guttermarker-subtle { color: #999; } + /* CURSOR */ -.CodeMirror div.CodeMirror-cursor { +.CodeMirror-cursor { border-left: 1px solid black; - z-index: 3; + border-right: none; + width: 0; } /* Shown when moving in bi-directional text */ .CodeMirror div.CodeMirror-secondarycursor { border-left: 1px solid silver; } -.CodeMirror.cm-keymap-fat-cursor div.CodeMirror-cursor { +.cm-fat-cursor .CodeMirror-cursor { width: auto; - border: 0; + border: 0 !important; background: #7e7; +} +.cm-fat-cursor div.CodeMirror-cursors { z-index: 1; } + +.cm-animate-fat-cursor { + width: auto; + border: 0; + -webkit-animation: blink 1.06s steps(1) infinite; + -moz-animation: blink 1.06s steps(1) infinite; + animation: blink 1.06s steps(1) infinite; + background-color: #7e7; +} +@-moz-keyframes blink { + 0% {} + 50% { background-color: transparent; } + 100% {} +} +@-webkit-keyframes blink { + 0% {} + 50% { background-color: transparent; } + 100% {} +} +@keyframes blink { + 0% {} + 50% { background-color: transparent; } + 100% {} +} + /* Can style cursor different in overwrite (non-insert) mode */ -.CodeMirror div.CodeMirror-cursor.CodeMirror-overwrite {} +.CodeMirror-overwrite .CodeMirror-cursor {} -.cm-tab { display: inline-block; } +.cm-tab { display: inline-block; text-decoration: inherit; } + +.CodeMirror-rulers { + position: absolute; + left: 0; right: 0; top: -50px; bottom: -20px; + overflow: hidden; +} +.CodeMirror-ruler { + border-left: 1px solid #ccc; + top: 0; bottom: 0; + position: absolute; +} /* DEFAULT THEME */ +.cm-s-default .cm-header {color: blue;} +.cm-s-default .cm-quote {color: #090;} +.cm-negative {color: #d44;} +.cm-positive {color: #292;} +.cm-header, .cm-strong {font-weight: bold;} +.cm-em {font-style: italic;} +.cm-link {text-decoration: underline;} +.cm-strikethrough {text-decoration: line-through;} + .cm-s-default .cm-keyword {color: #708;} .cm-s-default .cm-atom {color: #219;} .cm-s-default .cm-number {color: #164;} .cm-s-default .cm-def {color: #00f;} -.cm-s-default .cm-variable {color: black;} +.cm-s-default .cm-variable, +.cm-s-default .cm-punctuation, +.cm-s-default .cm-property, +.cm-s-default .cm-operator {} .cm-s-default .cm-variable-2 {color: #05a;} .cm-s-default .cm-variable-3 {color: #085;} -.cm-s-default .cm-property {color: black;} -.cm-s-default .cm-operator {color: black;} .cm-s-default .cm-comment {color: #a50;} .cm-s-default .cm-string {color: #a11;} .cm-s-default .cm-string-2 {color: #f50;} .cm-s-default .cm-meta {color: #555;} -.cm-s-default .cm-error {color: #f00;} .cm-s-default .cm-qualifier {color: #555;} .cm-s-default .cm-builtin {color: #30a;} .cm-s-default .cm-bracket {color: #997;} .cm-s-default .cm-tag {color: #170;} .cm-s-default .cm-attribute {color: #00c;} -.cm-s-default .cm-header {color: blue;} -.cm-s-default .cm-quote {color: #090;} .cm-s-default .cm-hr {color: #999;} .cm-s-default .cm-link {color: #00c;} -.cm-negative {color: #d44;} -.cm-positive {color: #292;} -.cm-header, .cm-strong {font-weight: bold;} -.cm-em {font-style: italic;} -.cm-link {text-decoration: underline;} - +.cm-s-default .cm-error {color: #f00;} .cm-invalidchar {color: #f00;} +.CodeMirror-composing { border-bottom: 2px solid; } + +/* Default styles for common addons */ + div.CodeMirror span.CodeMirror-matchingbracket {color: #0f0;} div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #f22;} +.CodeMirror-matchingtag { background: rgba(255, 150, 0, .3); } .CodeMirror-activeline-background {background: #e8f2ff;} /* STOP */ @@ -108,28 +150,28 @@ div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #f22;} the editor. You probably shouldn't touch them. */ .CodeMirror { - line-height: 1; position: relative; overflow: hidden; background: white; - color: black; } .CodeMirror-scroll { + overflow: scroll !important; /* Things will break if this is overridden */ /* 30px is the magic margin used to hide the element's real scrollbars */ /* See overflow: hidden in .CodeMirror */ margin-bottom: -30px; margin-right: -30px; - padding-bottom: 30px; padding-right: 30px; + padding-bottom: 30px; height: 100%; outline: none; /* Prevent dragging from highlighting the element */ position: relative; } .CodeMirror-sizer { position: relative; + border-right: 30px solid transparent; } /* The fake, visible scrollbars. Used to force redraw during scrolling - before actuall scrolling happens, thus preventing shaking and + before actual scrolling happens, thus preventing shaking and flickering artifacts. */ .CodeMirror-vscrollbar, .CodeMirror-hscrollbar, .CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler { position: absolute; @@ -155,27 +197,38 @@ div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #f22;} .CodeMirror-gutters { position: absolute; left: 0; top: 0; - padding-bottom: 30px; + min-height: 100%; z-index: 3; } .CodeMirror-gutter { white-space: normal; height: 100%; - padding-bottom: 30px; - margin-bottom: -32px; display: inline-block; - /* Hack to make IE7 behave */ - *zoom:1; - *display:inline; + vertical-align: top; + margin-bottom: -30px; +} +.CodeMirror-gutter-wrapper { + position: absolute; + z-index: 4; + background: none !important; + border: none !important; +} +.CodeMirror-gutter-background { + position: absolute; + top: 0; bottom: 0; + z-index: 4; } .CodeMirror-gutter-elt { position: absolute; cursor: default; z-index: 4; } +.CodeMirror-gutter-wrapper ::selection { background-color: transparent } +.CodeMirror-gutter-wrapper ::-moz-selection { background-color: transparent } .CodeMirror-lines { cursor: text; + min-height: 1px; /* prevents collapsing before first draw */ } .CodeMirror pre { /* Reset some styles that the rest of the page might have set */ @@ -192,22 +245,16 @@ div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #f22;} z-index: 2; position: relative; overflow: visible; + -webkit-tap-highlight-color: transparent; + -webkit-font-variant-ligatures: contextual; + font-variant-ligatures: contextual; } .CodeMirror-wrap pre { word-wrap: break-word; white-space: pre-wrap; word-break: normal; } -.CodeMirror-code pre { - border-right: 30px solid transparent; - width: -webkit-fit-content; - width: -moz-fit-content; - width: fit-content; -} -.CodeMirror-wrap .CodeMirror-code pre { - border-right: none; - width: auto; -} + .CodeMirror-linebackground { position: absolute; left: 0; right: 0; top: 0; bottom: 0; @@ -220,45 +267,74 @@ div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #f22;} overflow: auto; } -.CodeMirror-widget { +.CodeMirror-widget {} + +.CodeMirror-rtl pre { direction: rtl; } + +.CodeMirror-code { + outline: none; } -.CodeMirror-wrap .CodeMirror-scroll { - overflow-x: hidden; +/* Force content-box sizing for the elements where we expect it */ +.CodeMirror-scroll, +.CodeMirror-sizer, +.CodeMirror-gutter, +.CodeMirror-gutters, +.CodeMirror-linenumber { + -moz-box-sizing: content-box; + box-sizing: content-box; } .CodeMirror-measure { position: absolute; - width: 100%; height: 0px; + width: 100%; + height: 0; overflow: hidden; visibility: hidden; } -.CodeMirror-measure pre { position: static; } -.CodeMirror div.CodeMirror-cursor { +.CodeMirror-cursor { position: absolute; + pointer-events: none; +} +.CodeMirror-measure pre { position: static; } + +div.CodeMirror-cursors { visibility: hidden; - border-right: none; - width: 0; + position: relative; + z-index: 3; } -.CodeMirror-focused div.CodeMirror-cursor { +div.CodeMirror-dragcursors { + visibility: visible; +} + +.CodeMirror-focused div.CodeMirror-cursors { visibility: visible; } .CodeMirror-selected { background: #d9d9d9; } .CodeMirror-focused .CodeMirror-selected { background: #d7d4f0; } +.CodeMirror-crosshair { cursor: crosshair; } +.CodeMirror-line::selection, .CodeMirror-line > span::selection, .CodeMirror-line > span > span::selection { background: #d7d4f0; } +.CodeMirror-line::-moz-selection, .CodeMirror-line > span::-moz-selection, .CodeMirror-line > span > span::-moz-selection { background: #d7d4f0; } .cm-searching { background: #ffa; background: rgba(255, 255, 0, .4); } -/* IE7 hack to prevent it from returning funny offsetTops on the spans */ -.CodeMirror span { *vertical-align: text-bottom; } +/* Used to force a border model for a node */ +.cm-force-border { padding-right: .1px; } @media print { /* Hide the cursor when printing */ - .CodeMirror div.CodeMirror-cursor { + .CodeMirror div.CodeMirror-cursors { visibility: hidden; } } + +/* See issue #2901 */ +.cm-tab-wrap-hack:after { content: ''; } + +/* Help users use markselection to safely style text background */ +span.CodeMirror-selectedtext { background: none; } diff --git a/custom-css.php b/custom-css.php index c79e930..b70186c 100644 --- a/custom-css.php +++ b/custom-css.php @@ -4,7 +4,7 @@ Plugin URI: https://web.wsu.edu/ Description: Custom CSS via custom post type. Author: washingtonstateuniversity, jeremyfelt, automattic -Version: 2.2.1 +Version: 2.3.0 */ /** diff --git a/js/codemirror.min.js b/js/codemirror.min.js index bc7757c..5d187bb 100644 --- a/js/codemirror.min.js +++ b/js/codemirror.min.js @@ -1,11 +1,7 @@ -/** - * http://codemirror.net/ - * MIT License - * Includes CSS & LESS modes. - * v3.19.1 - */ -window.CodeMirror=function(){"use strict";function x(a,c){if(!(this instanceof x))return new x(a,c);this.options=c=c||{};for(var d in _c)!c.hasOwnProperty(d)&&_c.hasOwnProperty(d)&&(c[d]=_c[d]);J(c);var e="string"==typeof c.value?0:c.value.first,f=this.display=y(a,e);f.wrapper.CodeMirror=this,G(this),c.autofocus&&!p&&Nb(this),this.state={keyMaps:[],overlays:[],modeGen:0,overwrite:!1,focused:!1,suppressEdits:!1,pasteIncoming:!1,draggingText:!1,highlight:new Xe},E(this),c.lineWrapping&&(this.display.wrapper.className+=" CodeMirror-wrap");var g=c.value;"string"==typeof g&&(g=new 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j=le(c,d.from.line),k=le(c,d.to.line),l=Fd(c,j)==Fd(c,k),m=i(d.from.line,d.from.ch,l?j.text.length:null).end,n=i(d.to.line,l?0:null,d.to.ch).start;l&&(m.top0&&(b.blinker=setInterval(function(){b.cursor.style.visibility=b.otherCursor.style.visibility=(c=!c)?"":"hidden"},a.options.cursorBlinkRate))}}function bb(a,b){a.doc.mode.startState&&a.doc.frontier=a.display.showingTo)){var f,c=+new Date+a.options.workTime,d=hd(b.mode,eb(a,b.frontier)),e=[];b.iter(b.frontier,Math.min(b.first+b.size,a.display.showingTo+500),function(g){if(b.frontier>=a.display.showingFrom){var h=g.styles;g.styles=Sd(a,g,d);for(var i=!h||h.length!=g.styles.length,j=0;!i&&jc?(bb(a,a.options.workDelay),!0):void 0}),e.length&&Fb(a,function(){for(var a=0;ag;--h){if(h<=f.first)return f.first;var i=le(f,h-1);if(i.stateAfter&&(!c||h<=f.frontier))return h;var j=Ye(i.text,null,a.options.tabSize);(null==e||d>j)&&(e=h-1,d=j)}return e}function eb(a,b,c){var d=a.doc,e=a.display;if(!d.mode.startState)return!0;var f=db(a,b,c),g=f>d.first&&le(d,f-1).stateAfter;return g=g?hd(d.mode,g):id(d.mode),d.iter(f,b,function(c){Ud(a,c,g);var h=f==b-1||0==f%5||f>=e.showingFrom&&ff&&0==h&&(f=1)}return e=h>c?"left":c>h?"right":e,"left"==e&&i.leftSide?i=i.leftSide:"right"==e&&i.rightSide&&(i=i.rightSide),{left:c>h?i.right:i.left,right:h>c?i.left:i.right,top:i.top,bottom:i.bottom}}function jb(a,b){for(var c=a.display.measureLineCache,d=0;ds&&(c=s),0>b&&(b=0);for(var d=q.length-2;d>=0;d-=2){var e=q[d],f=q[d+1];if(!(e>c||b>f)&&(b>=e&&f>=c||e>=b&&c>=f||Math.min(c,f)-Math.max(b,e)>=c-b>>1)){q[d]=Math.min(b,e),q[d+1]=Math.max(c,f);break}}return 0>d&&(d=q.length,q.push(b,c)),{left:a.left-p.left,right:a.right-p.left,top:d,bottom:null}}function u(a){a.bottom=q[a.top+1],a.top=q[a.top]}if(!a.options.lineWrapping&&e.text.length>=a.options.crudeMeasuringFrom)return nb(a,e);var f=a.display,g=ef(e.text.length),h=Xd(a,e,g,!0).pre;if(b&&!c&&!a.options.lineWrapping&&h.childNodes.length>100){for(var i=document.createDocumentFragment(),j=10,k=h.childNodes.length,l=0,m=Math.ceil(k/j);m>l;++l){for(var n=lf("div",null,null,"display: inline-block"),o=0;j>o&&k;++o)n.appendChild(h.firstChild),--k;i.appendChild(n)}h.appendChild(i)}nf(f.measure,h);var p=pf(f.lineDiv),q=[],r=ef(e.text.length),s=h.offsetHeight;d&&f.measure.first!=h&&nf(f.measure,h);for(var v,l=0;l1&&(x=r[l]=t(y[0]),x.rightSide=t(y[y.length-1]))}x||(x=r[l]=t(pf(w))),v.measureRight&&(x.right=pf(v.measureRight).left),v.leftSide&&(x.leftSide=t(pf(v.leftSide)))}mf(a.display.measure);for(var v,l=0;l=a.options.crudeMeasuringFrom)return ib(a,b,b.text.length,f&&f.measure,"right").right;var g=Xd(a,b,null,!0).pre,h=g.appendChild(vf(a.display.measure));return nf(a.display.measure,g),pf(h).right-pf(a.display.lineDiv).left}function pb(a){a.display.measureLineCache.length=a.display.measureLineCachePos=0,a.display.cachedCharWidth=a.display.cachedTextHeight=null,a.options.lineWrapping||(a.display.maxLineChanged=!0),a.display.lineNumChars=null}function qb(){return window.pageXOffset||(document.documentElement||document.body).scrollLeft}function rb(){return window.pageYOffset||(document.documentElement||document.body).scrollTop}function sb(a,b,c,d){if(b.widgets)for(var e=0;ec.from?f(a-1):f(a,d)}d=d||le(a.doc,b.line),e||(e=lb(a,d));var h=se(d),i=b.ch;if(!h)return f(i);var j=Jf(h,i),k=g(i,j);return null!=If&&(k.other=g(i,If)),k}function wb(a,b,c,d){var e=new Bc(a,b);return e.xRel=d,c&&(e.outside=!0),e}function xb(a,b,c){var d=a.doc;if(c+=a.display.viewOffset,0>c)return wb(d.first,0,!0,-1);var e=qe(d,c),f=d.first+d.size-1;if(e>f)return wb(d.first+d.size-1,le(d,f).text.length,!0,1);for(0>b&&(b=0);;){var g=le(d,e),h=yb(a,g,e,b,c),i=Ed(g),j=i&&i.find();if(!i||!(h.ch>j.from.ch||h.ch==j.from.ch&&h.xRel>0))return h;e=j.to.line}}function yb(a,b,c,d,e){function j(d){var e=vb(a,Bc(c,d),"line",b,i);return g=!0,f>e.bottom?e.left-h:fq)return wb(c,n,r,1);for(;;){if(k?n==m||n==Lf(b,m,1):1>=n-m){for(var s=o>d||q-d>=d-o?m:n,t=d-(s==m?o:q);kf.test(b.text.charAt(s));)++s;var u=wb(c,s,s==m?p:r,0>t?-1:t?1:0);return u}var v=Math.ceil(l/2),w=m+v;if(k){w=m;for(var x=0;v>x;++x)w=Lf(b,w,1)}var y=j(w);y>d?(n=w,q=y,(r=g)&&(q+=1e3),l=v):(m=w,o=y,p=g,l-=v)}}function Ab(a){if(null!=a.cachedTextHeight)return a.cachedTextHeight;if(null==zb){zb=lf("pre");for(var b=0;49>b;++b)zb.appendChild(document.createTextNode("x")),zb.appendChild(lf("br"));zb.appendChild(document.createTextNode("x"))}nf(a.measure,zb);var c=zb.offsetHeight/50;return c>3&&(a.cachedTextHeight=c),mf(a.measure),c||1}function Bb(a){if(null!=a.cachedCharWidth)return a.cachedCharWidth;var b=lf("span","x"),c=lf("pre",[b]);nf(a.measure,c);var d=b.offsetWidth;return d>2&&(a.cachedCharWidth=d),d||10}function Db(a){a.curOp={changes:[],forceUpdate:!1,updateInput:null,userSelChange:null,textChanged:null,selectionChanged:!1,cursorActivity:!1,updateMaxLine:!1,updateScrollPos:!1,id:++Cb},Pe++||(Oe=[])}function Eb(a){var b=a.curOp,c=a.doc,d=a.display;if(a.curOp=null,b.updateMaxLine&&I(a),d.maxLineChanged&&!a.options.lineWrapping&&d.maxLine){var e=ob(a,d.maxLine);d.sizer.style.minWidth=Math.max(0,e+3+Ve)+"px",d.maxLineChanged=!1;var f=Math.max(0,d.sizer.offsetLeft+d.sizer.offsetWidth-d.scroller.clientWidth);fj&&e.charCodeAt(j)==h.charCodeAt(j);)++j;var l=g.from,m=g.to;j1e3||h.indexOf("\n")>-1?c.value=a.display.prevInput="":a.display.prevInput=h,i&&Eb(a),a.state.pasteIncoming=!1,!0}function Mb(a,c){var e,f,g=a.doc;if(Cc(g.sel.from,g.sel.to))c&&(a.display.prevInput=a.display.input.value="",b&&!d&&(a.display.inputHasSelection=null));else{a.display.prevInput="",e=yf&&(g.sel.to.line-g.sel.from.line>100||(f=a.getSelection()).length>1e3);var h=e?"-":f||a.getSelection();a.display.input.value=h,a.state.focused&&af(a.display.input),b&&!d&&(a.display.inputHasSelection=h)}a.display.inaccurateSelection=e}function Nb(a){"nocursor"==a.options.readOnly||p&&document.activeElement==a.display.input||a.display.input.focus()}function Ob(a){return a.options.readOnly||a.doc.cantEdit}function Pb(a){function e(){a.state.focused&&setTimeout(ff(Nb,a),0)}function h(){null==g&&(g=setTimeout(function(){g=null,c.cachedCharWidth=c.cachedTextHeight=sf=null,pb(a),Hb(a,ff(Ib,a))},100))}function i(){for(var a=c.wrapper.parentNode;a&&a!=document.body;a=a.parentNode);a?setTimeout(i,5e3):Me(window,"resize",h)}function j(b){Re(a,b)||a.options.onDragEvent&&a.options.onDragEvent(a,Ee(b))||Ie(b)}function l(){c.inaccurateSelection&&(c.prevInput="",c.inaccurateSelection=!1,c.input.value=a.getSelection(),af(c.input))}var c=a.display;Le(c.scroller,"mousedown",Fb(a,Ub)),b?Le(c.scroller,"dblclick",Fb(a,function(b){if(!Re(a,b)){var 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g;Le(window,"resize",h),setTimeout(i,5e3),Le(c.input,"keyup",Fb(a,function(b){Re(a,b)||a.options.onKeyEvent&&a.options.onKeyEvent(a,Ee(b))||16==b.keyCode&&(a.doc.sel.shift=!1)})),Le(c.input,"input",function(){b&&!d&&a.display.inputHasSelection&&(a.display.inputHasSelection=null),Kb(a)}),Le(c.input,"keydown",Fb(a,kc)),Le(c.input,"keypress",Fb(a,lc)),Le(c.input,"focus",ff(mc,a)),Le(c.input,"blur",ff(nc,a)),a.options.dragDrop&&(Le(c.scroller,"dragstart",function(b){$b(a,b)}),Le(c.scroller,"dragenter",j),Le(c.scroller,"dragover",j),Le(c.scroller,"drop",Fb(a,Zb))),Le(c.scroller,"paste",function(b){Qb(c,b)||(Nb(a),Kb(a))}),Le(c.input,"paste",function(){if(f&&!a.state.fakedLastChar&&!(new Date-a.state.lastMiddleDown<200)){var b=c.input.selectionStart,d=c.input.selectionEnd;c.input.value+="$",c.input.selectionStart=b,c.input.selectionEnd=d,a.state.fakedLastChar=!0}a.state.pasteIncoming=!0,Kb(a)}),Le(c.input,"cut",l),Le(c.input,"copy",l),k&&Le(c.sizer,"mouseup",function(){document.activeElement==c.input&&c.input.blur(),Nb(a)})}function Qb(a,b){for(var c=Je(b);c!=a.wrapper;c=c.parentNode)if(!c||c.ignoreEvents||c.parentNode==a.sizer&&c!=a.mover)return!0}function Rb(a,b,c){var d=a.display;if(!c){var e=Je(b);if(e==d.scrollbarH||e==d.scrollbarH.firstChild||e==d.scrollbarV||e==d.scrollbarV.firstChild||e==d.scrollbarFiller||e==d.gutterFiller)return null}var f,g,h=pf(d.lineSpace);try{f=b.clientX,g=b.clientY}catch(b){return null}return xb(a,f-h.left,g-h.top)}function Ub(a){function q(a){if(!Cc(p,a)){if(p=a,"single"==j)return Jc(c.doc,Gc(e,h),a),void 0;if(n=Gc(e,n),o=Gc(e,o),"double"==j){var b=Yc(le(e,a.line).text,a);Dc(a,n)?Jc(c.doc,b.from,o):Jc(c.doc,n,b.to) -}else"triple"==j&&(Dc(a,n)?Jc(c.doc,o,Gc(e,Bc(a.line,0))):Jc(c.doc,n,Gc(e,Bc(a.line+1,0))))}}function t(a){var b=++s,f=Rb(c,a,!0);if(f)if(Cc(f,l)){var h=a.clientYr.bottom?20:0;h&&setTimeout(Fb(c,function(){s==b&&(d.scroller.scrollTop+=h,t(a))}),50)}else{c.state.focused||mc(c),l=f,q(f);var g=L(d,e);(f.line>=g.to||f.linei-400&&Cc(Tb.pos,h))j="triple",Fe(a),setTimeout(ff(Nb,c),20),Zc(c,h.line);else if(Sb&&Sb.time>i-400&&Cc(Sb.pos,h)){j="double",Tb={time:i,pos:h},Fe(a);var k=Yc(le(e,h.line).text,h);Jc(c.doc,k.from,k.to)}else Sb={time:i,pos:h};var l=h;if(c.options.dragDrop&&qf&&!Ob(c)&&!Cc(g.from,g.to)&&!Dc(h,g.from)&&!Dc(g.to,h)&&"single"==j){var m=Fb(c,function(b){f&&(d.scroller.draggable=!1),c.state.draggingText=!1,Me(document,"mouseup",m),Me(d.scroller,"drop",m),Math.abs(a.clientX-b.clientX)+Math.abs(a.clientY-b.clientY)<10&&(Fe(b),Jc(c.doc,h),Nb(c))});return f&&(d.scroller.draggable=!0),c.state.draggingText=m,d.scroller.dragDrop&&d.scroller.dragDrop(),Le(document,"mouseup",m),Le(d.scroller,"drop",m),void 0}Fe(a),"single"==j&&Jc(c.doc,Gc(e,h));var n=g.from,o=g.to,p=h,r=pf(d.wrapper),s=0,w=Fb(c,function(a){b||Ke(a)?t(a):v(a)}),x=Fb(c,v);Le(document,"mousemove",w),Le(document,"mouseup",x)}}}function Vb(a,b,c,d,e){try{var f=b.clientX,g=b.clientY}catch(b){return!1}if(f>=Math.floor(pf(a.display.gutters).right))return!1;d&&Fe(b);var h=a.display,i=pf(h.lineDiv);if(g>i.bottom||!Te(a,c))return He(b);g-=i.top-h.viewOffset;for(var j=0;j=f){var l=qe(a.doc,g),m=a.options.gutters[j];return e(a,c,a,l,m,b),He(b)}}}function Wb(a,b){return Te(a,"gutterContextMenu")?Vb(a,b,"gutterContextMenu",!1,Ne):!1}function Xb(a,b){return Vb(a,b,"gutterClick",!0,Qe)}function Zb(a){var c=this;if(!(Re(c,a)||Qb(c.display,a)||c.options.onDragEvent&&c.options.onDragEvent(c,Ee(a)))){Fe(a),b&&(Yb=+new Date);var d=Rb(c,a,!0),e=a.dataTransfer.files;if(d&&!Ob(c))if(e&&e.length&&window.FileReader&&window.File)for(var f=e.length,g=Array(f),h=0,i=function(a,b){var e=new FileReader;e.onload=function(){g[b]=e.result,++h==f&&(d=Gc(c.doc,d),uc(c.doc,{from:d,to:d,text:wf(g.join("\n")),origin:"paste"},"around"))},e.readAsText(a)},j=0;f>j;++j)i(e[j],j);else{if(c.state.draggingText&&!Dc(d,c.doc.sel.from)&&!Dc(c.doc.sel.to,d))return c.state.draggingText(a),setTimeout(ff(Nb,c),20),void 0;try{var g=a.dataTransfer.getData("Text");if(g){var k=c.doc.sel.from,l=c.doc.sel.to;Lc(c.doc,d,d),c.state.draggingText&&Ac(c.doc,"",k,l,"paste"),c.replaceSelection(g,null,"paste"),Nb(c),mc(c)}}catch(a){}}}}function $b(a,c){if(b&&(!a.state.draggingText||+new Date-Yb<100))return Ie(c),void 0;if(!Re(a,c)&&!Qb(a.display,c)){var d=a.getSelection();if(c.dataTransfer.setData("Text",d),c.dataTransfer.setDragImage&&!j){var e=lf("img",null,null,"position: fixed; left: 0; top: 0;");e.src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==",i&&(e.width=e.height=1,a.display.wrapper.appendChild(e),e._top=e.offsetTop),c.dataTransfer.setDragImage(e,0,0),i&&e.parentNode.removeChild(e)}}}function _b(b,c){Math.abs(b.doc.scrollTop-c)<2||(b.doc.scrollTop=c,a||Q(b,[],c),b.display.scroller.scrollTop!=c&&(b.display.scroller.scrollTop=c),b.display.scrollbarV.scrollTop!=c&&(b.display.scrollbarV.scrollTop=c),a&&Q(b,[]),bb(b,100))}function ac(a,b,c){(c?b==a.doc.scrollLeft:Math.abs(a.doc.scrollLeft-b)<2)||(b=Math.min(b,a.display.scroller.scrollWidth-a.display.scroller.clientWidth),a.doc.scrollLeft=b,M(a),a.display.scroller.scrollLeft!=b&&(a.display.scroller.scrollLeft=b),a.display.scrollbarH.scrollLeft!=b&&(a.display.scrollbarH.scrollLeft=b))}function dc(b,c){var d=c.wheelDeltaX,e=c.wheelDeltaY;null==d&&c.detail&&c.axis==c.HORIZONTAL_AXIS&&(d=c.detail),null==e&&c.detail&&c.axis==c.VERTICAL_AXIS?e=c.detail:null==e&&(e=c.wheelDelta);var g=b.display,h=g.scroller;if(d&&h.scrollWidth>h.clientWidth||e&&h.scrollHeight>h.clientHeight){if(e&&q&&f)for(var j=c.target;j!=h;j=j.parentNode)if(j.lineObj){b.display.currentWheelTarget=j;break}if(d&&!a&&!i&&null!=cc)return e&&_b(b,Math.max(0,Math.min(h.scrollTop+e*cc,h.scrollHeight-h.clientHeight))),ac(b,Math.max(0,Math.min(h.scrollLeft+d*cc,h.scrollWidth-h.clientWidth))),Fe(c),g.wheelStartX=null,void 0;if(e&&null!=cc){var k=e*cc,l=b.doc.scrollTop,m=l+g.wrapper.clientHeight;0>k?l=Math.max(0,l+k-50):m=Math.min(b.doc.height,m+k+50),Q(b,[],{top:l,bottom:m})}20>bc&&(null==g.wheelStartX?(g.wheelStartX=h.scrollLeft,g.wheelStartY=h.scrollTop,g.wheelDX=d,g.wheelDY=e,setTimeout(function(){if(null!=g.wheelStartX){var a=h.scrollLeft-g.wheelStartX,b=h.scrollTop-g.wheelStartY,c=b&&g.wheelDY&&b/g.wheelDY||a&&g.wheelDX&&a/g.wheelDX;g.wheelStartX=g.wheelStartY=null,c&&(cc=(cc*bc+c)/(bc+1),++bc)}},200)):(g.wheelDX+=d,g.wheelDY+=e))}}function ec(a,b,c){if("string"==typeof b&&(b=jd[b],!b))return!1;a.display.pollingFast&&Lb(a)&&(a.display.pollingFast=!1);var d=a.doc,e=d.sel.shift,f=!1;try{Ob(a)&&(a.state.suppressEdits=!0),c&&(d.sel.shift=!1),f=b(a)!=We}finally{d.sel.shift=e,a.state.suppressEdits=!1}return f}function fc(a){var b=a.state.keyMaps.slice(0);return a.options.extraKeys&&b.push(a.options.extraKeys),b.push(a.options.keyMap),b}function hc(a,b){var c=ld(a.options.keyMap),e=c.auto;clearTimeout(gc),e&&!nd(b)&&(gc=setTimeout(function(){ld(a.options.keyMap)==c&&(a.options.keyMap=e.call?e.call(null,a):e,D(a))},50));var f=od(b,!0),g=!1;if(!f)return!1;var h=fc(a);return g=b.shiftKey?md("Shift-"+f,h,function(b){return ec(a,b,!0)})||md(f,h,function(b){return("string"==typeof b?/^go[A-Z]/.test(b):b.motion)?ec(a,b):void 0}):md(f,h,function(b){return ec(a,b)}),g&&(Fe(b),ab(a),d&&(b.oldKeyCode=b.keyCode,b.keyCode=0),Qe(a,"keyHandled",a,f,b)),g}function ic(a,b,c){var d=md("'"+c+"'",fc(a),function(b){return ec(a,b,!0)});return d&&(Fe(b),ab(a),Qe(a,"keyHandled",a,"'"+c+"'",b)),d}function kc(a){var c=this;if(c.state.focused||mc(c),!(Re(c,a)||c.options.onKeyEvent&&c.options.onKeyEvent(c,Ee(a)))){b&&27==a.keyCode&&(a.returnValue=!1);var d=a.keyCode;c.doc.sel.shift=16==d||a.shiftKey;var e=hc(c,a);i&&(jc=e?d:null,!e&&88==d&&!yf&&(q?a.metaKey:a.ctrlKey)&&c.replaceSelection(""))}}function lc(a){var c=this;if(!(Re(c,a)||c.options.onKeyEvent&&c.options.onKeyEvent(c,Ee(a)))){var e=a.keyCode,f=a.charCode;if(i&&e==jc)return jc=null,Fe(a),void 0;if(!(i&&(!a.which||a.which<10)||k)||!hc(c,a)){var g=String.fromCharCode(null==f?e:f);this.options.electricChars&&this.doc.mode.electricChars&&this.options.smartIndent&&!Ob(this)&&this.doc.mode.electricChars.indexOf(g)>-1&&setTimeout(Fb(c,function(){Uc(c,c.doc.sel.to.line,"smart")}),75),ic(c,a,g)||(b&&!d&&(c.display.inputHasSelection=null),Kb(c))}}}function 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d=b.text.length-1-(b.to.line-b.from.line);if(c.line>b.to.line+d){var e=c.line-d,f=a.first+a.size-1;return e>f?Bc(f,le(a,f).text.length):Hc(c,le(a,e).text.length)}if(c.line==b.to.line+d)return Hc(c,_e(b.text).length+(1==b.text.length?b.from.ch:0)+le(a,b.to.line).text.length-b.to.ch);var g=c.line-b.from.line;return Hc(c,b.text[g].length+(g?0:b.from.ch))}function sc(a,b,c){if(c&&"object"==typeof c)return{anchor:rc(a,b,c.anchor),head:rc(a,b,c.head)};if("start"==c)return{anchor:b.from,head:b.from};var d=qc(b);if("around"==c)return{anchor:b.from,head:d};if("end"==c)return{anchor:d,head:d};var e=function(a){if(Dc(a,b.from))return a;if(!Dc(b.to,a))return d;var c=a.line+b.text.length-(b.to.line-b.from.line)-1,e=a.ch;return a.line==b.to.line&&(e+=d.ch-b.to.ch),Bc(c,e)};return{anchor:e(a.sel.anchor),head:e(a.sel.head)}}function tc(a,b,c){var d={canceled:!1,from:b.from,to:b.to,text:b.text,origin:b.origin,cancel:function(){this.canceled=!0}};return c&&(d.update=function(b,c,d,e){b&&(this.from=Gc(a,b)),c&&(this.to=Gc(a,c)),d&&(this.text=d),void 0!==e&&(this.origin=e)}),Ne(a,"beforeChange",a,d),a.cm&&Ne(a.cm,"beforeChange",a.cm,d),d.canceled?null:{from:d.from,to:d.to,text:d.text,origin:d.origin}}function uc(a,b,c,d){if(a.cm){if(!a.cm.curOp)return Fb(a.cm,uc)(a,b,c,d);if(a.cm.state.suppressEdits)return}if(!(Te(a,"beforeChange")||a.cm&&Te(a.cm,"beforeChange"))||(b=tc(a,b,!0))){var e=v&&!d&&Bd(a,b.from,b.to);if(e){for(var f=e.length-1;f>=1;--f)vc(a,{from:e[f].from,to:e[f].to,text:[""]});e.length&&vc(a,{from:e[0].from,to:e[0].to,text:b.text},c)}else vc(a,b,c)}}function vc(a,b,c){if(1!=b.text.length||""!=b.text[0]||!Cc(b.from,b.to)){var d=sc(a,b,c);we(a,b,d,a.cm?a.cm.curOp.id:0/0),yc(a,b,d,zd(a,b));var e=[];je(a,function(a,c){c||-1!=bf(e,a.history)||(Ce(a.history,b),e.push(a.history)),yc(a,b,null,zd(a,b))})}}function wc(a,b){if(!a.cm||!a.cm.state.suppressEdits){var c=a.history,d=("undo"==b?c.done:c.undone).pop();if(d){var e={changes:[],anchorBefore:d.anchorAfter,headBefore:d.headAfter,anchorAfter:d.anchorBefore,headAfter:d.headBefore,generation:c.generation};("undo"==b?c.undone:c.done).push(e),c.generation=d.generation||++c.maxGeneration;for(var f=Te(a,"beforeChange")||a.cm&&Te(a.cm,"beforeChange"),g=d.changes.length-1;g>=0;--g){var h=d.changes[g];if(h.origin=b,f&&!tc(a,h,!1))return("undo"==b?c.done:c.undone).length=0,void 0;e.changes.push(ve(a,h));var i=g?sc(a,h,null):{anchor:d.anchorBefore,head:d.headBefore};yc(a,h,i,Ad(a,h));var j=[];je(a,function(a,b){b||-1!=bf(j,a.history)||(Ce(a.history,h),j.push(a.history)),yc(a,h,null,Ad(a,h))})}}}}function xc(a,b){function c(a){return Bc(a.line+b,a.ch)}a.first+=b,a.cm&&Ib(a.cm,a.first,a.first,b),a.sel.head=c(a.sel.head),a.sel.anchor=c(a.sel.anchor),a.sel.from=c(a.sel.from),a.sel.to=c(a.sel.to)}function yc(a,b,c,d){if(a.cm&&!a.cm.curOp)return Fb(a.cm,yc)(a,b,c,d);if(b.to.linea.lastLine())){if(b.from.linef&&(b={from:b.from,to:Bc(f,le(a,f).text.length),text:[b.text[0]],origin:b.origin}),b.removed=me(a,b.from,b.to),c||(c=sc(a,b,null)),a.cm?zc(a.cm,b,d,c):ce(a,b,d,c)}}function zc(a,b,c,d){var e=a.doc,f=a.display,g=b.from,h=b.to,i=!1,j=g.line;a.options.lineWrapping||(j=pe(Fd(e,le(e,g.line))),e.iter(j,h.line+1,function(a){return a==f.maxLine?(i=!0,!0):void 0})),Dc(e.sel.head,b.from)||Dc(b.to,e.sel.head)||(a.curOp.cursorActivity=!0),ce(e,b,c,d,B(a)),a.options.lineWrapping||(e.iter(j,g.line+b.text.length,function(a){var b=H(e,a);b>f.maxLineLength&&(f.maxLine=a,f.maxLineLength=b,f.maxLineChanged=!0,i=!1)}),i&&(a.curOp.updateMaxLine=!0)),e.frontier=Math.min(e.frontier,g.line),bb(a,400);var k=b.text.length-(h.line-g.line)-1;if(Ib(a,g.line,h.line+1,k),Te(a,"change")){var l={from:g,to:h,text:b.text,removed:b.removed,origin:b.origin};if(a.curOp.textChanged){for(var m=a.curOp.textChanged;m.next;m=m.next);m.next=l}else a.curOp.textChanged=l}}function Ac(a,b,c,d,e){if(d||(d=c),Dc(d,c)){var f=d;d=c,c=f}"string"==typeof b&&(b=wf(b)),uc(a,{from:c,to:d,text:b,origin:e},null)}function Bc(a,b){return this instanceof Bc?(this.line=a,this.ch=b,void 0):new Bc(a,b)}function Cc(a,b){return a.line==b.line&&a.ch==b.ch}function Dc(a,b){return a.linec?Bc(c,le(a,c).text.length):Hc(b,le(a,b.line).text.length)}function Hc(a,b){var c=a.ch;return null==c||c>b?Bc(a.line,b):0>c?Bc(a.line,0):a}function Ic(a,b){return b>=a.first&&b=f.ch:j.to>f.ch))){if(d&&(Ne(k,"beforeCursorEnter"),k.explicitlyCleared)){if(h.markedSpans){--i;continue}break}if(!k.atomic)continue;var l=k.find()[0>g?"from":"to"];if(Cc(l,f)&&(l.ch+=g,l.ch<0?l=l.line>a.first?Gc(a,Bc(l.line-1)):null:l.ch>h.text.length&&(l=l.line(window.innerHeight||document.documentElement.clientHeight)&&(e=!1),null!=e&&!n){var f="none"==c.cursor.style.display;f&&(c.cursor.style.display="",c.cursor.style.left=b.left+"px",c.cursor.style.top=b.top-c.viewOffset+"px"),c.cursor.scrollIntoView(e),f&&(c.cursor.style.display="none")}}}function Pc(a,b,c,d){for(null==d&&(d=0);;){var e=!1,f=vb(a,b),g=c&&c!=b?vb(a,c):f,h=Rc(a,Math.min(f.left,g.left),Math.min(f.top,g.top)-d,Math.max(f.left,g.left),Math.max(f.bottom,g.bottom)+d),i=a.doc.scrollTop,j=a.doc.scrollLeft;if(null!=h.scrollTop&&(_b(a,h.scrollTop),Math.abs(a.doc.scrollTop-i)>1&&(e=!0)),null!=h.scrollLeft&&(ac(a,h.scrollLeft),Math.abs(a.doc.scrollLeft-j)>1&&(e=!0)),!e)return f}}function Qc(a,b,c,d,e){var f=Rc(a,b,c,d,e);null!=f.scrollTop&&_b(a,f.scrollTop),null!=f.scrollLeft&&ac(a,f.scrollLeft)}function Rc(a,b,c,d,e){var f=a.display,g=Ab(a.display);0>c&&(c=0);var h=f.scroller.clientHeight-Ve,i=f.scroller.scrollTop,j={},k=a.doc.height+gb(f),l=g>c,m=e>k-g;if(i>c)j.scrollTop=l?0:c;else if(e>i+h){var n=Math.min(c,(m?k:e)-h);n!=i&&(j.scrollTop=n)}var o=f.scroller.clientWidth-Ve,p=f.scroller.scrollLeft;b+=f.gutters.offsetWidth,d+=f.gutters.offsetWidth;var q=f.gutters.offsetWidth,r=q+10>b;return p+q>b||r?(r&&(b=0),j.scrollLeft=Math.max(0,b-10-q)):d>o+p-3&&(j.scrollLeft=d+10-o),j}function Sc(a,b,c){a.curOp.updateScrollPos={scrollLeft:null==b?a.doc.scrollLeft:b,scrollTop:null==c?a.doc.scrollTop:c}}function Tc(a,b,c){var d=a.curOp.updateScrollPos||(a.curOp.updateScrollPos={scrollLeft:a.doc.scrollLeft,scrollTop:a.doc.scrollTop}),e=a.display.scroller;d.scrollTop=Math.max(0,Math.min(e.scrollHeight-e.clientHeight,d.scrollTop+c)),d.scrollLeft=Math.max(0,Math.min(e.scrollWidth-e.clientWidth,d.scrollLeft+b))}function Uc(a,b,c,d){var e=a.doc;if(null==c&&(c="add"),"smart"==c)if(a.doc.mode.indent)var f=eb(a,b);else c="prev";var 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r=Nc(a,Bc(f,g),h,!0);return j||(r.hitSide=!0),r}function Xc(a,b,c,d){var g,e=a.doc,f=b.left;if("page"==d){var h=Math.min(a.display.wrapper.clientHeight,window.innerHeight||document.documentElement.clientHeight);g=b.top+c*(h-(0>c?1.5:.5)*Ab(a.display))}else"line"==d&&(g=c>0?b.bottom+3:b.top-3);for(;;){var i=xb(a,f,g);if(!i.outside)break;if(0>c?0>=g:g>=e.height){i.hitSide=!0;break}g+=5*c}return i}function Yc(a,b){var c=b.ch,d=b.ch;if(a){(b.xRel<0||d==a.length)&&c?--c:++d;for(var e=a.charAt(c),f=hf(e)?hf:/\s/.test(e)?function(a){return/\s/.test(a)}:function(a){return!/\s/.test(a)&&!hf(a)};c>0&&f(a.charAt(c-1));)--c;for(;dg;++g){var i=d(f[g]);if(i)return i}return!1}for(var e=0;e=b:f.to>b);(e||(e=[])).push({from:f.from,to:i?null:f.to,marker:g})}}return e}function yd(a,b,c){if(a)for(var e,d=0;d=b:f.to>b);if(h||"bookmark"==g.type&&f.from==b&&(!c||f.marker.insertLeft)){var i=null==f.from||(g.inclusiveLeft?f.from<=b:f.from0&&h)for(var l=0;ll;++l)o.push(q);o.push(i)}return o}function Ad(a,b){var c=ye(a,b),d=zd(a,b);if(!c)return d;if(!d)return c;for(var e=0;eb)&&(!d||d.widtha.options.maxHighlightLength?(f=!1,i.pos=b.length,j=null):j=c.token(i,d),f&&h==j||(gh;){var e=d[g];e>a&&d.splice(g,1,a,d[g+1],e),g+=2,h=Math.min(a,e)}if(b)if(f.opaque)d.splice(c,g-c,a,b),g=c+2;else for(;g>c;c+=2){var i=d[c+1];d[c+1]=i?i+" "+b:b}})}return d}function Td(a,b){return b.styles&&b.styles[0]==a.state.modeGen||(b.styles=Sd(a,b,b.stateAfter=eb(a,pe(b)))),b.styles}function Ud(a,b,c){var d=a.doc.mode,e=new pd(b.text,a.options.tabSize);for(""==b.text&&d.blankLine&&d.blankLine(c);!e.eol()&&e.pos<=a.options.maxHighlightLength;)d.token(e,c),e.start=e.pos}function Wd(a,b){if(!a)return null;for(;;){var c=a.match(/(?:^|\s)line-(background-)?(\S+)/);if(!c)break;a=a.slice(0,c.index)+a.slice(c.index+c[0].length);var d=c[1]?"bgClass":"textClass";null==b[d]?b[d]=c[2]:new RegExp("(?:^|s)"+c[2]+"(?:$|s)").test(b[d])||(b[d]+=" "+c[2])}return Vd[a]||(Vd[a]="cm-"+a.replace(/ +/g," cm-"))}function Xd(a,c,d,g){for(var 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Hc(a,b){a.state.delayingBlurEvent||(a.state.focused&&(Ea(a,"blur",a,b),a.state.focused=!1,pg(a.display.wrapper,"CodeMirror-focused")),clearInterval(a.display.blinker),setTimeout(function(){a.state.focused||(a.display.shift=!1)},150))}function Ic(a){var b=a.display,c=b.view;if(b.alignWidgets||b.gutters.firstChild&&a.options.fixedGutter){for(var d=uc(b)-b.scroller.scrollLeft+a.doc.scrollLeft,e=b.gutters.offsetWidth,f=d+"px",g=0;g.001||i<-.001)&&(E(e.line,f),Lc(e.line),e.rest))for(var j=0;j=g&&(f=G(b,sa(B(b,i))-a.wrapper.clientHeight),g=i)}return{from:f,to:Math.max(g,f+1)}}function Nc(a,b){Math.abs(a.doc.scrollTop-b)<2||(a.doc.scrollTop=b,Uf||yd(a,{top:b}),a.display.scroller.scrollTop!=b&&(a.display.scroller.scrollTop=b),a.display.scrollbars.setScrollTop(b),Uf&&yd(a),td(a,100))}function Oc(a,b,c){(c?b==a.doc.scrollLeft:Math.abs(a.doc.scrollLeft-b)<2)||(b=Math.min(b,a.display.scroller.scrollWidth-a.display.scroller.clientWidth),a.doc.scrollLeft=b,Ic(a),a.display.scroller.scrollLeft!=b&&(a.display.scroller.scrollLeft=b),a.display.scrollbars.setScrollLeft(b))}function Pc(a){var b=a.wheelDeltaX,c=a.wheelDeltaY;return null==b&&a.detail&&a.axis==a.HORIZONTAL_AXIS&&(b=a.detail),null==c&&a.detail&&a.axis==a.VERTICAL_AXIS?c=a.detail:null==c&&(c=a.wheelDelta),{x:b,y:c}}function Qc(a){var b=Pc(a);return b.x*=Zg,b.y*=Zg,b}function Rc(a,b){var c=Pc(b),d=c.x,e=c.y,f=a.display,g=f.scroller,h=g.scrollWidth>g.clientWidth,i=g.scrollHeight>g.clientHeight;if(d&&h||e&&i){if(e&&ig&&$f)a:for(var j=b.target,k=f.view;j!=g;j=j.parentNode)for(var l=0;l(window.innerHeight||document.documentElement.clientHeight)&&(f=!1),null!=f&&!eg){var g=d("div","​",null,"position: absolute;\n top: "+(b.top-c.viewOffset-Nb(a.display))+"px;\n height: "+(b.bottom-b.top+Qb(a)+c.barHeight)+"px;\n left: "+b.left+"px; width: "+Math.max(2,b.right-b.left)+"px;");a.display.lineSpace.appendChild(g),g.scrollIntoView(f),a.display.lineSpace.removeChild(g)}}}function Xc(a,b,c,d){null==d&&(d=0);for(var e,f=0;f<5;f++){var g=!1,h=kc(a,b),i=c&&c!=b?kc(a,c):h;e={left:Math.min(h.left,i.left),top:Math.min(h.top,i.top)-d,right:Math.max(h.left,i.left),bottom:Math.max(h.bottom,i.bottom)+d};var j=Zc(a,e),k=a.doc.scrollTop,l=a.doc.scrollLeft;if(null!=j.scrollTop&&(Nc(a,j.scrollTop),Math.abs(a.doc.scrollTop-k)>1&&(g=!0)),null!=j.scrollLeft&&(Oc(a,j.scrollLeft),Math.abs(a.doc.scrollLeft-l)>1&&(g=!0)),!g)break}return e}function Yc(a,b){var c=Zc(a,b);null!=c.scrollTop&&Nc(a,c.scrollTop),null!=c.scrollLeft&&Oc(a,c.scrollLeft)}function Zc(a,b){var c=a.display,d=rc(a.display);b.top<0&&(b.top=0);var e=a.curOp&&null!=a.curOp.scrollTop?a.curOp.scrollTop:c.scroller.scrollTop,f=Sb(a),g={};b.bottom-b.top>f&&(b.bottom=b.top+f);var h=a.doc.height+Ob(c),i=b.toph-d;if(b.tope+f){var k=Math.min(b.top,(j?h:b.bottom)-f);k!=e&&(g.scrollTop=k)}var l=a.curOp&&null!=a.curOp.scrollLeft?a.curOp.scrollLeft:c.scroller.scrollLeft,m=Rb(a)-(a.options.fixedGutter?c.gutters.offsetWidth:0),n=b.right-b.left>m;return n&&(b.right=b.left+m),b.left<10?g.scrollLeft=0:b.leftm+l-3&&(g.scrollLeft=b.right+(n?0:10)-m),g}function $c(a,b,c){null==b&&null==c||ad(a),null!=b&&(a.curOp.scrollLeft=(null==a.curOp.scrollLeft?a.doc.scrollLeft:a.curOp.scrollLeft)+b),null!=c&&(a.curOp.scrollTop=(null==a.curOp.scrollTop?a.doc.scrollTop:a.curOp.scrollTop)+c)}function _c(a){ad(a);var b=a.getCursor(),c=b,d=b;a.options.lineWrapping||(c=b.ch?J(b.line,b.ch-1):b,d=J(b.line,b.ch+1)),a.curOp.scrollToPos={from:c,to:d,margin:a.options.cursorScrollMargin}}function ad(a){var b=a.curOp.scrollToPos;if(b){a.curOp.scrollToPos=null;var c=lc(a,b.from),d=lc(a,b.to),e=Zc(a,{left:Math.min(c.left,d.left),top:Math.min(c.top,d.top)-b.margin,right:Math.max(c.right,d.right),bottom:Math.max(c.bottom,d.bottom)+b.margin});a.scrollTo(e.scrollLeft,e.scrollTop)}}function bd(a){a.curOp={cm:a,viewChanged:!1,startHeight:a.doc.height,forceUpdate:!1,updateInput:null,typing:!1,changeObjs:null,cursorActivityHandlers:null,cursorActivityCalled:0,selectionChanged:!1,updateMaxLine:!1,scrollLeft:null,scrollTop:null,scrollToPos:null,focus:!1,id:++bh},ub(a.curOp)}function cd(a){wb(a.curOp,function(a){for(var b=0;b=c.viewTo)||c.maxLineChanged&&b.options.lineWrapping,a.update=a.mustUpdate&&new ch(b,a.mustUpdate&&{top:a.scrollTop,ensure:a.scrollToPos},a.forceUpdate)}function fd(a){a.updatedDisplay=a.mustUpdate&&wd(a.cm,a.update)}function gd(a){var b=a.cm,c=b.display;a.updatedDisplay&&Kc(b),a.barMeasure=Sc(b),c.maxLineChanged&&!b.options.lineWrapping&&(a.adjustWidthTo=Wb(b,c.maxLine,c.maxLine.text.length).left+3,b.display.sizerWidth=a.adjustWidthTo,a.barMeasure.scrollWidth=Math.max(c.scroller.clientWidth,c.sizer.offsetLeft+a.adjustWidthTo+Qb(b)+b.display.barWidth),a.maxScrollLeft=Math.max(0,c.sizer.offsetLeft+a.adjustWidthTo-Rb(b))),(a.updatedDisplay||a.selectionChanged)&&(a.preparedSelection=c.input.prepareSelection(a.focus))}function hd(a){var b=a.cm;null!=a.adjustWidthTo&&(b.display.sizer.style.minWidth=a.adjustWidthTo+"px",a.maxScrollLeftb)&&(e.updateLineNumbers=b),a.curOp.viewChanged=!0,b>=e.viewTo)Dg&&oa(a.doc,b)e.viewFrom?pd(a):(e.viewFrom+=d,e.viewTo+=d);else if(b<=e.viewFrom&&c>=e.viewTo)pd(a);else if(b<=e.viewFrom){var f=qd(a,c,c+d,1);f?(e.view=e.view.slice(f.index),e.viewFrom=f.lineN,e.viewTo+=d):pd(a)}else if(c>=e.viewTo){var g=qd(a,b,b,-1);g?(e.view=e.view.slice(0,g.index),e.viewTo=g.lineN):pd(a)}else{var h=qd(a,b,b,-1),i=qd(a,c,c+d,1);h&&i?(e.view=e.view.slice(0,h.index).concat(tb(a,h.lineN,i.lineN)).concat(e.view.slice(i.index)),e.viewTo+=d):pd(a)}var j=e.externalMeasured;j&&(c=e.lineN&&b=d.viewTo)){var f=d.view[yc(a,b)];if(null!=f.node){var g=f.changes||(f.changes=[]);-1==m(g,c)&&g.push(c)}}}function pd(a){a.display.viewFrom=a.display.viewTo=a.doc.first,a.display.view=[],a.display.viewOffset=0}function qd(a,b,c,d){var e,f=yc(a,b),g=a.display.view;if(!Dg||c==a.doc.first+a.doc.size)return{index:f,lineN:c};for(var h=a.display.viewFrom,i=0;i0){if(f==g.length-1)return null;e=h+g[f].size-b,f++}else e=h-b;b+=e,c+=e}for(;oa(a.doc,c)!=c;){if(f==(d<0?0:g.length-1))return null;c+=d*g[f-(d<0?1:0)].size,f+=d}return{index:f,lineN:c}}function rd(a,b,c){var d=a.display;0==d.view.length||b>=d.viewTo||c<=d.viewFrom?(d.view=tb(a,b,c),d.viewFrom=b):(d.viewFrom>b?d.view=tb(a,b,d.viewFrom).concat(d.view):d.viewFromc&&(d.view=d.view.slice(0,yc(a,c)))),d.viewTo=c}function sd(a){for(var b=a.display.view,c=0,d=0;d=a.display.viewTo)){var c=+new Date+a.options.workTime,d=Xa(b.mode,ab(a,b.frontier)),e=[];b.iter(b.frontier,Math.min(b.first+b.size,a.display.viewTo+500),function(f){if(b.frontier>=a.display.viewFrom){var g=f.styles,h=f.text.length>a.options.maxHighlightLength,i=$a(a,f,h?Xa(b.mode,d):d,!0);f.styles=i.styles;var j=f.styleClasses,k=i.classes;k?f.styleClasses=k:j&&(f.styleClasses=null);for(var l=!g||g.length!=f.styles.length||j!=k&&(!j||!k||j.bgClass!=k.bgClass||j.textClass!=k.textClass),m=0;!l&&mc)return td(a,a.options.workDelay),!0}),e.length&&jd(a,function(){for(var b=0;b=d.viewFrom&&c.visible.to<=d.viewTo&&(null==d.updateLineNumbers||d.updateLineNumbers>=d.viewTo)&&d.renderedView==d.view&&0==sd(a))return!1;Jc(a)&&(pd(a),c.dims=tc(a));var f=e.first+e.size,h=Math.max(c.visible.from-a.options.viewportMargin,e.first),i=Math.min(f,c.visible.to+a.options.viewportMargin);d.viewFromi&&d.viewTo-i<20&&(i=Math.min(f,d.viewTo)),Dg&&(h=oa(a.doc,h),i=pa(a.doc,i));var j=h!=d.viewFrom||i!=d.viewTo||d.lastWrapHeight!=c.wrapperHeight||d.lastWrapWidth!=c.wrapperWidth;rd(a,h,i),d.viewOffset=sa(B(a.doc,d.viewFrom)),a.display.mover.style.top=d.viewOffset+"px";var k=sd(a);if(!j&&0==k&&!c.force&&d.renderedView==d.view&&(null==d.updateLineNumbers||d.updateLineNumbers>=d.viewTo))return!1;var l=g();return k>4&&(d.lineDiv.style.display="none"),zd(a,d.updateLineNumbers,c.dims),k>4&&(d.lineDiv.style.display=""),d.renderedView=d.view,l&&g()!=l&&l.offsetHeight&&l.focus(),b(d.cursorDiv),b(d.selectionDiv),d.gutters.style.height=d.sizer.style.minHeight=0,j&&(d.lastWrapHeight=c.wrapperHeight,d.lastWrapWidth=c.wrapperWidth,td(a,400)),d.updateLineNumbers=null,!0}function xd(a,b){for(var c=b.viewport,d=!0;(d&&a.options.lineWrapping&&b.oldDisplayWidth!=Rb(a)||(c&&null!=c.top&&(c={top:Math.min(a.doc.height+Ob(a.display)-Sb(a),c.top)}),b.visible=Mc(a.display,a.doc,c),!(b.visible.from>=a.display.viewFrom&&b.visible.to<=a.display.viewTo)))&&wd(a,b);d=!1){Kc(a);var e=Sc(a);zc(a),Tc(a,e),Bd(a,e)}b.signal(a,"update",a),a.display.viewFrom==a.display.reportedViewFrom&&a.display.viewTo==a.display.reportedViewTo||(b.signal(a,"viewportChange",a,a.display.viewFrom,a.display.viewTo),a.display.reportedViewFrom=a.display.viewFrom,a.display.reportedViewTo=a.display.viewTo)}function yd(a,b){var c=new ch(a,b);if(wd(a,c)){Kc(a),xd(a,c);var d=Sc(a);zc(a),Tc(a,d),Bd(a,d),c.finish()}}function zd(a,c,d){function e(b){var c=b.nextSibling;return $f&&ig&&a.display.currentWheelTarget==b?b.style.display="none":b.parentNode.removeChild(b),c}for(var f=a.display,g=a.options.lineNumbers,h=f.lineDiv,i=h.firstChild,j=f.view,k=f.viewFrom,l=0;l-1&&(o=!1),zb(a,n,k,d)),o&&(b(n.lineNumber),n.lineNumber.appendChild(document.createTextNode(I(a.options,k)))),i=n.node.nextSibling}else{var p=Hb(a,n,k,d);h.insertBefore(p,i)}k+=n.size}for(;i;)i=e(i)}function Ad(a){var b=a.display.gutters.offsetWidth;a.display.sizer.style.marginLeft=b+"px"}function Bd(a,b){a.display.sizer.style.minHeight=b.docHeight+"px",a.display.heightForcer.style.top=b.docHeight+"px",a.display.gutters.style.height=b.docHeight+a.display.barHeight+Qb(a)+"px"}function Cd(a){var c=a.display.gutters,e=a.options.gutters;b(c);for(var f=0;f-1&&!a.lineNumbers&&(a.gutters=a.gutters.slice(0),a.gutters.splice(b,1))}function Ed(a,b){var c=a[b];a.sort(function(a,b){return K(a.from(),b.from())}),b=m(a,c);for(var d=1;d=0){var g=O(f.from(),e.from()),h=N(f.to(),e.to()),i=f.empty()?e.from()==e.head:f.from()==f.head;d<=b&&--b,a.splice(--d,2,new eh(i?h:g,i?g:h))}}return new dh(a,b)}function Fd(a,b){return new dh([new eh(a,b||a)],0)}function Gd(a){return a.text?J(a.from.line+a.text.length-1,p(a.text).length+(1==a.text.length?a.from.ch:0)):a.to}function Hd(a,b){if(K(a,b.from)<0)return a;if(K(a,b.to)<=0)return Gd(b);var c=a.line+b.text.length-(b.to.line-b.from.line)-1,d=a.ch;return a.line==b.to.line&&(d+=Gd(b).ch-b.to.ch),J(c,d)}function Id(a,b){for(var c=[],d=0;d1&&a.remove(h.line+1,o-1),a.insert(h.line+1,s)}xb(a,"change",a,b)}function Pd(a,b,c){function d(a,e,f){if(a.linked)for(var g=0;g1&&!a.done[a.done.length-2].ranges?(a.done.pop(),p(a.done)):void 0}function Xd(a,b,c,d){var e=a.history;e.undone.length=0;var f,g,h=+new Date;if((e.lastOp==d||e.lastOrigin==b.origin&&b.origin&&("+"==b.origin.charAt(0)&&a.cm&&e.lastModTime>h-a.cm.options.historyEventDelay||"*"==b.origin.charAt(0)))&&(f=Wd(e,e.lastOp==d)))g=p(f.changes),0==K(b.from,b.to)&&0==K(b.from,g.to)?g.to=Gd(b):f.changes.push(Ud(a,b));else{var i=p(e.done);for(i&&i.ranges||$d(a.sel,e.done),f={changes:[Ud(a,b)],generation:e.generation},e.done.push(f);e.done.length>e.undoDepth;)e.done.shift(),e.done[0].ranges||e.done.shift()}e.done.push(c),e.generation=++e.maxGeneration,e.lastModTime=e.lastSelTime=h,e.lastOp=e.lastSelOp=d,e.lastOrigin=e.lastSelOrigin=b.origin,g||Ea(a,"historyAdded")}function Yd(a,b,c,d){var e=b.charAt(0);return"*"==e||"+"==e&&c.ranges.length==d.ranges.length&&c.somethingSelected()==d.somethingSelected()&&new Date-a.history.lastSelTime<=(a.cm?a.cm.options.historyEventDelay:500)}function Zd(a,b,c,d){var e=a.history,f=d&&d.origin;c==e.lastSelOp||f&&e.lastSelOrigin==f&&(e.lastModTime==e.lastSelTime&&e.lastOrigin==f||Yd(a,f,p(e.done),b))?e.done[e.done.length-1]=b:$d(b,e.done),e.lastSelTime=+new Date,e.lastSelOrigin=f,e.lastSelOp=c,d&&!1!==d.clearRedo&&Vd(e.undone)}function $d(a,b){var c=p(b);c&&c.ranges&&c.equals(a)||b.push(a)}function _d(a,b,c,d){var e=b["spans_"+a.id],f=0;a.iter(Math.max(a.first,c),Math.min(a.first+a.size,d),function(c){c.markedSpans&&((e||(e=b["spans_"+a.id]={}))[f]=c.markedSpans),++f})}function ae(a){if(!a)return null;for(var b,c=0;c-1&&(p(h)[l]=j[l],delete j[l])}}}return d}function ee(a,b,c,d){if(a.cm&&a.cm.display.shift||a.extend){var e=b.anchor;if(d){var f=K(c,e)<0;f!=K(d,e)<0?(e=c,c=d):f!=K(c,d)<0&&(c=d)}return new eh(e,c)}return new eh(d||c,c)}function fe(a,b,c,d){le(a,new dh([ee(a,a.sel.primary(),b,c)],0),d)}function ge(a,b,c){for(var d=[],e=0;e=b.ch:h.to>b.ch))){if(e&&(Ea(i,"beforeCursorEnter"),i.explicitlyCleared)){if(f.markedSpans){--g;continue}break}if(!i.atomic)continue;if(c){var j=i.find(d<0?1:-1),k=void 0;if((d<0?i.inclusiveRight:i.inclusiveLeft)&&(j=se(a,j,-d,j&&j.line==b.line?f:null)),j&&j.line==b.line&&(k=K(j,c))&&(d<0?k<0:k>0))return qe(a,j,b,d,e)}var l=i.find(d<0?-1:1);return(d<0?i.inclusiveLeft:i.inclusiveRight)&&(l=se(a,l,d,l.line==b.line?f:null)),l?qe(a,l,b,d,e):null}}return b}function re(a,b,c,d,e){var f=d||1,g=qe(a,b,c,f,e)||!e&&qe(a,b,c,f,!0)||qe(a,b,c,-f,e)||!e&&qe(a,b,c,-f,!0);return g||(a.cantEdit=!0,J(a.first,0))}function se(a,b,c,d){return c<0&&0==b.ch?b.line>a.first?Q(a,J(b.line-1)):null:c>0&&b.ch==(d||B(a,b.line)).text.length?b.line=0;--e)we(a,{from:d[e].from,to:d[e].to,text:e?[""]:b.text});else we(a,b)}}function we(a,b){if(1!=b.text.length||""!=b.text[0]||0!=K(b.from,b.to)){var c=Id(a,b);Xd(a,b,c,a.cm?a.cm.curOp.id:NaN),ze(a,b,c,_(a,b));var d=[];Pd(a,function(a,c){c||-1!=m(d,a.history)||(Ee(a.history,b),d.push(a.history)),ze(a,b,null,_(a,b))})}}function xe(a,b,c){if(!a.cm||!a.cm.state.suppressEdits||c){for(var d,e=a.history,f=a.sel,g="undo"==b?e.done:e.undone,h="undo"==b?e.undone:e.done,i=0;i=0;--l){var n=function(c){var e=d.changes[c];if(e.origin=b,k&&!ue(a,e,!1))return g.length=0,{};j.push(Ud(a,e));var f=c?Id(a,e):p(g);ze(a,e,f,ce(a,e)),!c&&a.cm&&a.cm.scrollIntoView({from:e.from,to:Gd(e)});var h=[];Pd(a,function(a,b){b||-1!=m(h,a.history)||(Ee(a.history,e),h.push(a.history)),ze(a,e,null,ce(a,e))})}(l);if(n)return n.v}}}}function ye(a,b){if(0!=b&&(a.first+=b,a.sel=new dh(q(a.sel.ranges,function(a){return new eh(J(a.anchor.line+b,a.anchor.ch),J(a.head.line+b,a.head.ch))}),a.sel.primIndex),a.cm)){nd(a.cm,a.first,a.first-b,b);for(var c=a.cm.display,d=c.viewFrom;da.lastLine())){if(b.from.linef&&(b={from:b.from,to:J(f,B(a,f).text.length),text:[b.text[0]],origin:b.origin}),b.removed=C(a,b.from,b.to),c||(c=Id(a,b)),a.cm?Ae(a.cm,b,d):Od(a,b,d),me(a,c,wg)}}function Ae(a,b,c){var d=a.doc,e=a.display,f=b.from,g=b.to,h=!1,i=f.line;a.options.lineWrapping||(i=F(la(B(d,f.line))),d.iter(i,g.line+1,function(a){if(a==e.maxLine)return h=!0,!0})),d.sel.contains(b.from,b.to)>-1&&Ga(a),Od(d,b,c,vc(a)),a.options.lineWrapping||(d.iter(i,f.line+b.text.length,function(a){var b=ta(a);b>e.maxLineLength&&(e.maxLine=a,e.maxLineLength=b,e.maxLineChanged=!0,h=!1)}),h&&(a.curOp.updateMaxLine=!0)),d.frontier=Math.min(d.frontier,f.line),td(a,400);var j=b.text.length-(g.line-f.line)-1;b.full?nd(a):f.line!=g.line||1!=b.text.length||Nd(a.doc,b)?nd(a,f.line,g.line+1,j):od(a,f.line,"text");var k=Ha(a,"changes"),l=Ha(a,"change");if(l||k){var m={from:f,to:g,text:b.text,removed:b.removed,origin:b.origin};l&&xb(a,"change",a,m),k&&(a.curOp.changeObjs||(a.curOp.changeObjs=[])).push(m)}a.display.selForContextMenu=null}function Be(a,b,c,d,e){if(d||(d=c),K(d,c)<0){var f=d;d=c,c=f}"string"==typeof b&&(b=a.splitLines(b)),ve(a,{from:c,to:d,text:b,origin:e})}function Ce(a,b,c,d){c0||0==h&&!1!==g.clearWhenEmpty)return g;if(g.replacedWith&&(g.collapsed=!0,g.widgetNode=e("span",[g.replacedWith],"CodeMirror-widget"),d.handleMouseEvents||g.widgetNode.setAttribute("cm-ignore-events","true"),d.insertLeft&&(g.widgetNode.insertLeft=!0)),g.collapsed){if(ka(a,b.line,b,c,g)||b.line!=c.line&&ka(a,c.line,b,c,g))throw new Error("Inserting collapsed marker partially overlapping an existing one");U()}g.addToHistory&&Xd(a,{from:b,to:c,origin:"markText"},a.sel,NaN);var i,j=b.line,l=a.cm;if(a.iter(j,c.line+1,function(a){l&&g.collapsed&&!l.options.lineWrapping&&la(a)==l.display.maxLine&&(i=!0),g.collapsed&&j!=b.line&&E(a,0),Y(a,new V(g,j==b.line?b.ch:null,j==c.line?c.ch:null)),++j}),g.collapsed&&a.iter(b.line,c.line+1,function(b){qa(a,b)&&E(b,0)}),g.clearOnEnter&&Hg(g,"beforeCursorEnter",function(){return g.clear()}),g.readOnly&&(T(),(a.history.done.length||a.history.undone.length)&&a.clearHistory()),g.collapsed&&(g.id=++ih,g.atomic=!0),l){if(i&&(l.curOp.updateMaxLine=!0),g.collapsed)nd(l,b.line,c.line+1);else if(g.className||g.title||g.startStyle||g.endStyle||g.css)for(var m=b.line;m<=c.line;m++)od(l,m,"text");g.atomic&&oe(l.doc),xb(l,"markerAdded",l,g)}return g}function Je(a,b,c,d,e){d=k(d),d.shared=!1;var f=[Ie(a,b,c,d,e)],g=f[0],h=d.widgetNode;return Pd(a,function(a){h&&(d.widgetNode=h.cloneNode(!0)),f.push(Ie(a,Q(a,b),Q(a,c),d,e));for(var i=0;i-1)return b.state.draggingText(a),void setTimeout(function(){return b.display.input.focus()},20);try{var i=a.dataTransfer.getData("Text");if(i){var j;if(b.state.draggingText&&!b.state.draggingText.copy&&(j=b.listSelections()),me(b.doc,Fd(c,c)),j)for(var k=0;k=0;b--)Be(a.doc,"",d[b].from,d[b].to,"+delete");_c(a)})}function af(a,b){var c=B(a.doc,b),d=la(c);return d!=c&&(b=F(d)),Aa(!0,a,d,b,1)}function bf(a,b){var c=B(a.doc,b),d=ma(c);return d!=c&&(b=F(d)),Aa(!0,a,c,b,-1)}function cf(a,b){var c=af(a,b.line),d=B(a.doc,c.line),e=xa(d,a.doc.direction);if(!e||0==e[0].level){var f=Math.max(0,d.text.search(/\S/)),g=b.line==c.line&&b.ch<=f&&b.ch;return J(c.line,g?0:f,c.sticky)}return c}function df(a,b,c){if("string"==typeof b&&!(b=wh[b]))return!1;a.display.input.ensurePolled();var d=a.display.shift,e=!1;try{a.isReadOnly()&&(a.state.suppressEdits=!0),c&&(a.display.shift=!1),e=b(a)!=vg}finally{a.display.shift=d,a.state.suppressEdits=!1}return e}function ef(a,b,c){for(var d=0;de-400&&0==K(vh.pos,c)?d="triple":uh&&uh.time>e-400&&0==K(uh.pos,c)?(d="double",vh={time:e,pos:c}):(d="single",uh={time:e,pos:c});var f,h=a.doc.sel,i=ig?b.metaKey:b.ctrlKey;a.options.dragDrop&&Ig&&!a.isReadOnly()&&"single"==d&&(f=h.contains(c))>-1&&(K((f=h.ranges[f]).from(),c)<0||c.xRel>0)&&(K(f.to(),c)>0||c.xRel<0)?pf(a,b,c,i):qf(a,b,c,d,i)}function pf(a,b,c,d){var e=a.display,f=+new Date,g=kd(a,function(h){$f&&(e.scroller.draggable=!1),a.state.draggingText=!1,Da(document,"mouseup",g),Da(e.scroller,"drop",g),Math.abs(b.clientX-h.clientX)+Math.abs(b.clientY-h.clientY)<10&&(Ja(h),!d&&+new Date-200u&&e.push(new eh(J(q,u),J(q,n(s,j,f))))}e.length||e.push(new eh(c,c)),le(k,Ed(p.ranges.slice(0,o).concat(e),o),{origin:"*mouse",scroll:!1}),a.scrollIntoView(b)}else{var v=m,w=v.anchor,x=b;if("single"!=d){var y;y="double"==d?a.findWordAt(b):new eh(J(b.line,0),Q(k,J(b.line+1,0))),K(y.anchor,w)>0?(x=y.head,w=O(v.from(),y.anchor)):(x=y.anchor,w=N(v.to(),y.head))}var z=p.ranges.slice(0);z[o]=new eh(Q(k,w),x),le(k,Ed(z,o),xg)}}function h(b){var c=++v,e=xc(a,b,!0,"rect"==d);if(e)if(0!=K(e,t)){a.curOp.focus=g(),f(e);var i=Mc(j,k);(e.line>=i.to||e.lineu.bottom?20:0;l&&setTimeout(kd(a,function(){v==c&&(j.scroller.scrollTop+=l,h(b))}),50)}}function i(b){a.state.selectingText=!1,v=1/0,Ja(b),j.input.focus(),Da(document,"mousemove",w),Da(document,"mouseup",x),k.history.lastSelOrigin=null}var j=a.display,k=a.doc;Ja(b);var m,o,p=k.sel,q=p.ranges;if(e&&!b.shiftKey?(o=k.sel.contains(c),m=o>-1?q[o]:new eh(c,c)):(m=k.sel.primary(),o=k.sel.primIndex),jg?b.shiftKey&&b.metaKey:b.altKey)d="rect",e||(m=new eh(c,c)),c=xc(a,b,!0,!0),o=-1;else if("double"==d){var r=a.findWordAt(c);m=a.display.shift||k.extend?ee(k,m,r.anchor,r.head):r}else if("triple"==d){var s=new eh(J(c.line,0),Q(k,J(c.line+1,0)));m=a.display.shift||k.extend?ee(k,m,s.anchor,s.head):s}else m=ee(k,m,c);e?-1==o?(o=q.length,le(k,Ed(q.concat([m]),o),{scroll:!1,origin:"*mouse"})):q.length>1&&q[o].empty()&&"single"==d&&!b.shiftKey?(le(k,Ed(q.slice(0,o).concat(q.slice(o+1)),0),{scroll:!1,origin:"*mouse"}),p=k.sel):he(k,o,m,xg):(o=0,le(k,new dh([m],0),xg),p=k.sel);var t=c,u=j.wrapper.getBoundingClientRect(),v=0,w=kd(a,function(a){Oa(a)?h(a):i(a)}),x=kd(a,i);a.state.selectingText=x,Hg(document,"mousemove",w),Hg(document,"mouseup",x)}function rf(a,b,c,d){var e,f;try{e=b.clientX,f=b.clientY}catch(b){return!1}if(e>=Math.floor(a.display.gutters.getBoundingClientRect().right))return!1;d&&Ja(b);var g=a.display,h=g.lineDiv.getBoundingClientRect();if(f>h.bottom||!Ha(a,c))return La(b);f-=h.top-g.viewOffset;for(var i=0;i=e){return Ea(a,c,a,G(a.doc,f),a.options.gutters[i],b),La(b)}}}function sf(a,b){return rf(a,b,"gutterClick",!0)}function tf(a,b){Mb(a.display,b)||uf(a,b)||Fa(a,b,"contextmenu")||a.display.input.onContextMenu(b)}function uf(a,b){return!!Ha(a,"gutterContextMenu")&&rf(a,b,"gutterContextMenu",!1)}function vf(a){a.display.wrapper.className=a.display.wrapper.className.replace(/\s*cm-s-\S+/g,"")+a.options.theme.replace(/(^|\s)\s*/g," cm-s-"),ec(a)}function wf(a){Cd(a),nd(a),Ic(a)}function xf(a,b,c){if(!b!=!(c&&c!=zh)){var d=a.display.dragFunctions,e=b?Hg:Da;e(a.display.scroller,"dragstart",d.start),e(a.display.scroller,"dragenter",d.enter),e(a.display.scroller,"dragover",d.over),e(a.display.scroller,"dragleave",d.leave),e(a.display.scroller,"drop",d.drop)}}function yf(a){a.options.lineWrapping?(h(a.display.wrapper,"CodeMirror-wrap"),a.display.sizer.style.minWidth="",a.display.sizerWidth=null):(pg(a.display.wrapper,"CodeMirror-wrap"),ua(a)),wc(a),nd(a),ec(a),setTimeout(function(){return Tc(a)},100)}function zf(a,b){var c=this;if(!(this instanceof zf))return new zf(a,b);this.options=b=b?k(b):{},k(Ah,b,!1),Dd(b);var d=b.value;"string"==typeof d&&(d=new mh(d,b.mode,null,b.lineSeparator,b.direction)),this.doc=d;var e=new zf.inputStyles[b.inputStyle](this),f=this.display=new A(a,d,e);f.wrapper.CodeMirror=this,Cd(this),vf(this),b.lineWrapping&&(this.display.wrapper.className+=" 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f,g={end:0};Hg(e.scroller,"touchstart",function(b){if(!Fa(a,b)&&!c(b)){e.input.ensurePolled(),clearTimeout(f);var d=+new Date;e.activeTouch={start:d,moved:!1,prev:d-g.end<=300?g:null},1==b.touches.length&&(e.activeTouch.left=b.touches[0].pageX,e.activeTouch.top=b.touches[0].pageY)}}),Hg(e.scroller,"touchmove",function(){e.activeTouch&&(e.activeTouch.moved=!0)}),Hg(e.scroller,"touchend",function(c){var f=e.activeTouch;if(f&&!Mb(e,c)&&null!=f.left&&!f.moved&&new Date-f.start<300){var g,h=a.coordsChar(e.activeTouch,"page");g=!f.prev||d(f,f.prev)?new eh(h,h):!f.prev.prev||d(f,f.prev.prev)?a.findWordAt(h):new eh(J(h.line,0),Q(a.doc,J(h.line+1,0))),a.setSelection(g.anchor,g.head),a.focus(),Ja(c)}b()}),Hg(e.scroller,"touchcancel",b),Hg(e.scroller,"scroll",function(){e.scroller.clientHeight&&(Nc(a,e.scroller.scrollTop),Oc(a,e.scroller.scrollLeft,!0),Ea(a,"scroll",a))}),Hg(e.scroller,"mousewheel",function(b){return Rc(a,b)}),Hg(e.scroller,"DOMMouseScroll",function(b){return Rc(a,b)}),Hg(e.wrapper,"scroll",function(){return e.wrapper.scrollTop=e.wrapper.scrollLeft=0}),e.dragFunctions={enter:function(b){Fa(a,b)||Ma(b)},over:function(b){Fa(a,b)||(Pe(a,b),Ma(b))},start:function(b){return Oe(a,b)},drop:kd(a,Ne),leave:function(b){Fa(a,b)||Qe(a)}};var h=e.input.getField();Hg(h,"keyup",function(b){return lf.call(a,b)}),Hg(h,"keydown",kd(a,jf)),Hg(h,"keypress",kd(a,mf)),Hg(h,"focus",function(b){return Gc(a,b)}),Hg(h,"blur",function(b){return Hc(a,b)})}function Bf(a,b,c,d){var e,f=a.doc;null==c&&(c="add"),"smart"==c&&(f.mode.indent?e=ab(a,b):c="prev");var g=a.options.tabSize,h=B(f,b),i=l(h.text,null,g);h.stateAfter&&(h.stateAfter=null);var j,k=h.text.match(/^\s*/)[0];if(d||/\S/.test(h.text)){if("smart"==c&&((j=f.mode.indent(e,h.text.slice(k.length),h.text))==vg||j>150)){if(!d)return;c="prev"}}else j=0,c="not";"prev"==c?j=b>f.first?l(B(f,b-1).text,null,g):0:"add"==c?j=i+a.options.indentUnit:"subtract"==c?j=i-a.options.indentUnit:"number"==typeof c&&(j=i+c),j=Math.max(0,j);var m="",n=0;if(a.options.indentWithTabs)for(var p=Math.floor(j/g);p;--p)n+=g,m+="\t";if(n1)if(Dh&&Dh.text.join("\n")==b){if(d.ranges.length%Dh.text.length==0){i=[];for(var j=0;j=0;l--){var m=d.ranges[l],n=m.from(),o=m.to();m.empty()&&(c&&c>0?n=J(n.line,n.ch-c):a.state.overwrite&&!g?o=J(o.line,Math.min(B(f,o.line).text.length,o.ch+p(h).length)):Dh&&Dh.lineWise&&Dh.text.join("\n")==b&&(n=o=J(n.line,0))),k=a.curOp.updateInput;var r={from:n,to:o,text:i?i[l%i.length]:h,origin:e||(g?"paste":a.state.cutIncoming?"cut":"+input")};ve(a.doc,r),xb(a,"inputRead",a,r)}b&&!g&&Ff(a,b),_c(a),a.curOp.updateInput=k,a.curOp.typing=!0,a.state.pasteIncoming=a.state.cutIncoming=!1}function Ef(a,b){var c=a.clipboardData&&a.clipboardData.getData("Text");if(c)return a.preventDefault(),b.isReadOnly()||b.options.disableInput||jd(b,function(){return Df(b,c,0,null,"paste")}),!0}function Ff(a,b){if(a.options.electricChars&&a.options.smartIndent)for(var c=a.doc.sel,d=c.ranges.length-1;d>=0;d--){var e=c.ranges[d];if(!(e.head.ch>100||d&&c.ranges[d-1].head.line==e.head.line)){var f=a.getModeAt(e.head),g=!1;if(f.electricChars){for(var h=0;h-1){g=Bf(a,e.head.line,"smart");break}}else f.electricInput&&f.electricInput.test(B(a.doc,e.head.line).text.slice(0,e.head.ch))&&(g=Bf(a,e.head.line,"smart"));g&&xb(a,"electricInput",a,e.head.line)}}}function Gf(a){for(var b=[],c=[],d=0;d=a.first+a.size)&&(b=new J(d,b.ch,b.sticky), +j=B(a,d))}function g(d){var g;if(null==(g=e?Ba(a.cm,j,b,c):za(j,b,c))){if(d||!f())return!1;b=Aa(e,a.cm,j,b.line,c)}else b=g;return!0}var h=b,i=c,j=B(a,b.line);if("char"==d)g();else if("column"==d)g(!0);else if("word"==d||"group"==d)for(var k=null,l="group"==d,m=a.cm&&a.cm.getHelper(b,"wordChars"),n=!0;!(c<0)||g(!n);n=!1){var o=j.text.charAt(b.ch)||"\n",p=v(o,m)?"w":l&&"\n"==o?"n":!l||/\s/.test(o)?null:"p";if(!l||n||p||(p="s"),k&&k!=p){c<0&&(c=1,g(),b.sticky="after");break}if(p&&(k=p),c>0&&!g(!n))break}var q=re(a,b,h,i,!0);return L(h,q)&&(q.hitSide=!0),q}function Kf(a,b,c,d){var e,f=a.doc,g=b.left;if("page"==d){var h=Math.min(a.display.wrapper.clientHeight,window.innerHeight||document.documentElement.clientHeight),i=Math.max(h-.5*rc(a.display),3);e=(c>0?b.bottom:b.top)+c*i}else"line"==d&&(e=c>0?b.bottom+3:b.top-3);for(var j;j=nc(a,g,e),j.outside;){if(c<0?e<=0:e>=f.height){j.hitSide=!0;break}e+=5*c}return j}function Lf(a,b){var c=Xb(a,b.line);if(!c||c.hidden)return null;var d=B(a.doc,b.line),e=Ub(c,d,b.line),f=xa(d,a.doc.direction),g="left";if(f){g=wa(f,b.ch)%2?"right":"left"}var h=$b(e.map,b.ch,g);return h.offset="right"==h.collapse?h.end:h.start,h}function Mf(a){for(var b=a;b;b=b.parentNode)if(/CodeMirror-gutter-wrapper/.test(b.className))return!0;return!1}function Nf(a,b){return b&&(a.bad=!0),a}function Of(a,b,c,d,e){function f(a){return function(b){return b.id==a}}function g(){k&&(j+=l,k=!1)}function h(a){a&&(g(),j+=a)}function i(b){if(1==b.nodeType){var 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d=a.display;this.viewport=b,this.visible=Mc(d,a.doc,b),this.editorIsHidden=!d.wrapper.offsetWidth,this.wrapperHeight=d.wrapper.clientHeight,this.wrapperWidth=d.wrapper.clientWidth,this.oldDisplayWidth=Rb(a),this.force=c,this.dims=tc(a),this.events=[]};ch.prototype.signal=function(a,b){Ha(a,b)&&this.events.push(arguments)},ch.prototype.finish=function(){for(var a=this,b=0;b=0&&K(a,e.to())<=0)return d}return-1};var eh=function(a,b){this.anchor=a,this.head=b};eh.prototype.from=function(){return O(this.anchor,this.head)},eh.prototype.to=function(){return N(this.anchor,this.head)},eh.prototype.empty=function(){return this.head.line==this.anchor.line&&this.head.ch==this.anchor.ch};var fh=function(a){var b=this;this.lines=a,this.parent=null;for(var c=0,d=0;d1||!(this.children[0]instanceof fh))){var i=[];this.collapse(i),this.children=[new fh(i)],this.children[0].parent=this}},gh.prototype.collapse=function(a){for(var b=this,c=0;c50){for(var 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b},findMarks:function(a,b,c){a=Q(this,a),b=Q(this,b);var d=[],e=a.line;return this.iter(a.line,b.line+1,function(f){var g=f.markedSpans;if(g)for(var h=0;h=i.to||null==i.from&&e!=a.line||null!=i.from&&e==b.line&&i.from>=b.ch||c&&!c(i.marker)||d.push(i.marker.parent||i.marker)}++e}),d},getAllMarks:function(){var a=[];return this.iter(function(b){var c=b.markedSpans;if(c)for(var d=0;da)return b=a,!0;a-=f,++c}),Q(this,J(c,b))},indexFromPos:function(a){a=Q(this,a);var b=a.ch;if(a.lineb&&(b=a.from),null!=a.to&&a.to0)e=new J(e.line,e.ch+1),a.replaceRange(f.charAt(e.ch-1)+f.charAt(e.ch-2),J(e.line,e.ch-2),e,"+transpose");else if(e.line>a.doc.first){var g=B(a.doc,e.line-1).text;g&&(e=new J(e.line,1),a.replaceRange(f.charAt(0)+a.doc.lineSeparator()+g.charAt(g.length-1),J(e.line-1,g.length-1),e,"+transpose"))}c.push(new eh(e,e))}a.setSelections(c)})},newlineAndIndent:function(a){return jd(a,function(){for(var b=a.listSelections(),c=b.length-1;c>=0;c--)a.replaceRange(a.doc.lineSeparator(),b[c].anchor,b[c].head,"+input");b=a.listSelections();for(var d=0;da.firstLine()&&(d=J(d.line-1,B(a.doc,d.line-1).length)),e.ch==B(a.doc,e.line).text.length&&e.lineb.viewTo-1)return!1;var f,g,h;d.line==b.viewFrom||0==(f=yc(a,d.line))?(g=F(b.view[0].line),h=b.view[0].node):(g=F(b.view[f].line),h=b.view[f-1].node.nextSibling);var i,j,k=yc(a,e.line);if(k==b.view.length-1?(i=b.viewTo-1,j=b.lineDiv.lastChild):(i=F(b.view[k+1].line)-1,j=b.view[k+1].node.previousSibling),!h)return!1;for(var l=a.doc.splitLines(Of(a,h,j,g,i)),m=C(a.doc,J(g,0),J(i,B(a.doc,i).text.length));l.length>1&&m.length>1;)if(p(l)==p(m))l.pop(),m.pop(),i--;else{if(l[0]!=m[0])break;l.shift(),m.shift(),g++}for(var n=0,o=0,q=l[0],r=m[0],s=Math.min(q.length,r.length);nd.ch&&t.charCodeAt(t.length-o-1)==u.charCodeAt(u.length-o-1);)n--,o++;l[l.length-1]=t.slice(0,t.length-o).replace(/^\u200b+/,""),l[0]=l[0].slice(n).replace(/\u200b+$/,"");var w=J(g,n),x=J(i,m.length?p(m).length-o:0);return l.length>1||l[0]||K(w,x)?(Be(a.doc,l,w,x,"+input"),!0):void 0},Eh.prototype.ensurePolled=function(){this.forceCompositionEnd()},Eh.prototype.reset=function(){this.forceCompositionEnd()},Eh.prototype.forceCompositionEnd=function(){this.composing&&(clearTimeout(this.readDOMTimeout),this.composing=null,this.updateFromDOM(),this.div.blur(),this.div.focus())},Eh.prototype.readFromDOMSoon=function(){var a=this;null==this.readDOMTimeout&&(this.readDOMTimeout=setTimeout(function(){if(a.readDOMTimeout=null,a.composing){if(!a.composing.done)return;a.composing=null}a.updateFromDOM()},80))},Eh.prototype.updateFromDOM=function(){var a=this;!this.cm.isReadOnly()&&this.pollContent()||jd(this.cm,function(){return nd(a.cm)})},Eh.prototype.setUneditable=function(a){a.contentEditable="false"},Eh.prototype.onKeyPress=function(a){0!=a.charCode&&(a.preventDefault(),this.cm.isReadOnly()||kd(this.cm,Df)(this.cm,String.fromCharCode(null==a.charCode?a.keyCode:a.charCode),0))},Eh.prototype.readOnlyChanged=function(a){this.div.contentEditable=String("nocursor"!=a)},Eh.prototype.onContextMenu=function(){},Eh.prototype.resetPosition=function(){},Eh.prototype.needsContentAttribute=!0;var Fh=function(a){this.cm=a,this.prevInput="",this.pollingFast=!1,this.polling=new rg,this.inaccurateSelection=!1,this.hasSelection=!1,this.composing=null};Fh.prototype.init=function(a){function b(a){if(!Fa(e,a)){if(e.somethingSelected())Cf({lineWise:!1,text:e.getSelections()}),d.inaccurateSelection&&(d.prevInput="",d.inaccurateSelection=!1,g.value=Dh.text.join("\n"),qg(g));else{if(!e.options.lineWiseCopyCut)return;var b=Gf(e);Cf({lineWise:!0,text:b.text}),"cut"==a.type?e.setSelections(b.ranges,null,wg):(d.prevInput="",g.value=b.text.join("\n"),qg(g))}"cut"==a.type&&(e.state.cutIncoming=!0)}}var c=this,d=this,e=this.cm,f=this.wrapper=If(),g=this.textarea=f.firstChild;a.wrapper.insertBefore(f,a.wrapper.firstChild),fg&&(g.style.width="0px"),Hg(g,"input",function(){Yf&&Zf>=9&&c.hasSelection&&(c.hasSelection=null),d.poll()}),Hg(g,"paste",function(a){Fa(e,a)||Ef(a,e)||(e.state.pasteIncoming=!0,d.fastPoll())}),Hg(g,"cut",b),Hg(g,"copy",b),Hg(a.scroller,"paste",function(b){Mb(a,b)||Fa(e,b)||(e.state.pasteIncoming=!0,d.focus())}),Hg(a.lineSpace,"selectstart",function(b){Mb(a,b)||Ja(b)}),Hg(g,"compositionstart",function(){var a=e.getCursor("from");d.composing&&d.composing.range.clear(),d.composing={start:a,range:e.markText(a,e.getCursor("to"),{className:"CodeMirror-composing"})}}),Hg(g,"compositionend",function(){d.composing&&(d.poll(),d.composing.range.clear(),d.composing=null)})},Fh.prototype.prepareSelection=function(){var a=this.cm,b=a.display,c=a.doc,d=Ac(a);if(a.options.moveInputWithCursor){var e=kc(a,c.sel.primary().head,"div"),f=b.wrapper.getBoundingClientRect(),g=b.lineDiv.getBoundingClientRect();d.teTop=Math.max(0,Math.min(b.wrapper.clientHeight-10,e.top+g.top-f.top)),d.teLeft=Math.max(0,Math.min(b.wrapper.clientWidth-10,e.left+g.left-f.left))}return d},Fh.prototype.showSelection=function(a){var b=this.cm,d=b.display;c(d.cursorDiv,a.cursors),c(d.selectionDiv,a.selection),null!=a.teTop&&(this.wrapper.style.top=a.teTop+"px",this.wrapper.style.left=a.teLeft+"px")},Fh.prototype.reset=function(a){if(!this.contextMenuPending){var b,c,d=this.cm,e=d.doc;if(d.somethingSelected()){this.prevInput="";var f=e.sel.primary();b=Lg&&(f.to().line-f.from().line>100||(c=d.getSelection()).length>1e3);var g=b?"-":c||d.getSelection();this.textarea.value=g,d.state.focused&&qg(this.textarea),Yf&&Zf>=9&&(this.hasSelection=g)}else a||(this.prevInput=this.textarea.value="",Yf&&Zf>=9&&(this.hasSelection=null));this.inaccurateSelection=b}},Fh.prototype.getField=function(){return this.textarea},Fh.prototype.supportsTouch=function(){return!1},Fh.prototype.focus=function(){if("nocursor"!=this.cm.options.readOnly&&(!hg||g()!=this.textarea))try{this.textarea.focus()}catch(a){}},Fh.prototype.blur=function(){this.textarea.blur()},Fh.prototype.resetPosition=function(){this.wrapper.style.top=this.wrapper.style.left=0},Fh.prototype.receivedFocus=function(){this.slowPoll()},Fh.prototype.slowPoll=function(){var a=this;this.pollingFast||this.polling.set(this.cm.options.pollInterval,function(){a.poll(),a.cm.state.focused&&a.slowPoll()})},Fh.prototype.fastPoll=function(){function a(){c.poll()||b?(c.pollingFast=!1,c.slowPoll()):(b=!0,c.polling.set(60,a))}var b=!1,c=this;c.pollingFast=!0,c.polling.set(20,a)},Fh.prototype.poll=function(){var a=this,b=this.cm,c=this.textarea,d=this.prevInput;if(this.contextMenuPending||!b.state.focused||Kg(c)&&!d&&!this.composing||b.isReadOnly()||b.options.disableInput||b.state.keySeq)return!1;var e=c.value;if(e==d&&!b.somethingSelected())return!1;if(Yf&&Zf>=9&&this.hasSelection===e||ig&&/[\uf700-\uf7ff]/.test(e))return b.display.input.reset(),!1;if(b.doc.sel==b.display.selForContextMenu){var f=e.charCodeAt(0);if(8203!=f||d||(d="​"),8666==f)return this.reset(),this.cm.execCommand("undo")}for(var 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jQuery("#message").remove(); jQuery('

Saving...

').insertBefore("form"); @@ -28,7 +23,7 @@ init: function() { this.$textarea = $( '#safecss' ); this.editor = window.CodeMirror.fromTextArea( this.$textarea.get(0),{ - mode: this.getMode(), + mode: 'css', extraKeys: { "Esc": function(cm) { var fullscreen = cm.getOption("fullScreen"); @@ -46,7 +41,7 @@ "Cmd-S": function(instance) { WSU_CSS.ajaxSaveCSS(); } }, lineNumbers: true, - tabSize: 2, + tabSize: 4, indentWithTabs: true, lineWrapping: true }); @@ -64,13 +59,6 @@ setEditorHeight: function() { var height = $('html').height() - $( this.editor.getWrapperElement() ).offset().top; this.editor.setSize( null, height ); - }, - getMode: function() { - var mode = ''; - if ( '' === mode || ! this.modes[ mode ] ) { - mode = 'default'; - } - return this.modes[ mode ]; } }; diff --git a/package.json b/package.json new file mode 100644 index 0000000..7bcf39b --- /dev/null +++ b/package.json @@ -0,0 +1,17 @@ +{ + "name": "wsuwp-custom-css", + "version": "2.3.0", + "repository": { + "type": "git", + "url": "https://github.com/washingtonstateuniversity/wsuwp-custom-css" + }, + "author": "washingtonstateuniversity", + "license": "GPL-2.0+", + "devDependencies": { + "grunt": "~1.0.1", + "grunt-contrib-clean": "^1.0.0", + "grunt-contrib-concat": "~1.0.1", + "grunt-contrib-cssmin": "~1.0.2", + "grunt-contrib-uglify": "^2.0.0" + } +} diff --git a/src/js/codemirror-css-mode.js b/src/js/codemirror-css-mode.js new file mode 100644 index 0000000..02cc93d --- /dev/null +++ b/src/js/codemirror-css-mode.js @@ -0,0 +1,831 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: http://codemirror.net/LICENSE + +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../../lib/codemirror")); + else if (typeof define == "function" && define.amd) // AMD + define(["../../lib/codemirror"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { +"use strict"; + +CodeMirror.defineMode("css", function(config, parserConfig) { + var inline = parserConfig.inline + if (!parserConfig.propertyKeywords) parserConfig = CodeMirror.resolveMode("text/css"); + + var indentUnit = config.indentUnit, + tokenHooks = parserConfig.tokenHooks, + documentTypes = parserConfig.documentTypes || {}, + mediaTypes = parserConfig.mediaTypes || {}, + mediaFeatures = parserConfig.mediaFeatures || {}, + mediaValueKeywords = parserConfig.mediaValueKeywords || {}, + propertyKeywords = parserConfig.propertyKeywords || {}, + nonStandardPropertyKeywords = parserConfig.nonStandardPropertyKeywords || {}, + fontProperties = parserConfig.fontProperties || {}, + counterDescriptors = parserConfig.counterDescriptors || {}, + colorKeywords = parserConfig.colorKeywords || {}, + valueKeywords = parserConfig.valueKeywords || {}, + allowNested = parserConfig.allowNested, + lineComment = parserConfig.lineComment, + supportsAtComponent = parserConfig.supportsAtComponent === true; + + var type, override; + function ret(style, tp) { type = tp; return style; } + + // Tokenizers + + function tokenBase(stream, state) { + var ch = stream.next(); + if (tokenHooks[ch]) { + var result = tokenHooks[ch](stream, state); + if (result !== false) return result; + } + if (ch == "@") { + stream.eatWhile(/[\w\\\-]/); + return ret("def", stream.current()); + } else if (ch == "=" || (ch == "~" || ch == "|") && stream.eat("=")) { + return ret(null, "compare"); + } else if (ch == "\"" || ch == "'") { + state.tokenize = tokenString(ch); + return state.tokenize(stream, state); + } else if (ch == "#") { + stream.eatWhile(/[\w\\\-]/); + return ret("atom", "hash"); + } else if (ch == "!") { + stream.match(/^\s*\w*/); + return ret("keyword", "important"); + } else if (/\d/.test(ch) || ch == "." && stream.eat(/\d/)) { + stream.eatWhile(/[\w.%]/); + return ret("number", "unit"); + } else if (ch === "-") { + if (/[\d.]/.test(stream.peek())) { + stream.eatWhile(/[\w.%]/); + return ret("number", "unit"); + } else if (stream.match(/^-[\w\\\-]+/)) { + stream.eatWhile(/[\w\\\-]/); + if (stream.match(/^\s*:/, false)) + return ret("variable-2", "variable-definition"); + return ret("variable-2", "variable"); + } else if (stream.match(/^\w+-/)) { + return ret("meta", "meta"); + } + } else if (/[,+>*\/]/.test(ch)) { + return ret(null, "select-op"); + } else if (ch == "." && stream.match(/^-?[_a-z][_a-z0-9-]*/i)) { + return ret("qualifier", "qualifier"); + } else if (/[:;{}\[\]\(\)]/.test(ch)) { + return ret(null, ch); + } else if ((ch == "u" && stream.match(/rl(-prefix)?\(/)) || + (ch == "d" && stream.match("omain(")) || + (ch == "r" && stream.match("egexp("))) { + stream.backUp(1); + state.tokenize = tokenParenthesized; + return ret("property", "word"); + } else if (/[\w\\\-]/.test(ch)) { + stream.eatWhile(/[\w\\\-]/); + return ret("property", "word"); + } else { + return ret(null, null); + } + } + + function tokenString(quote) { + return function(stream, state) { + var escaped = false, ch; + while ((ch = stream.next()) != null) { + if (ch == quote && !escaped) { + if (quote == ")") stream.backUp(1); + break; + } + escaped = !escaped && ch == "\\"; + } + if (ch == quote || !escaped && quote != ")") state.tokenize = null; + return ret("string", "string"); + }; + } + + function tokenParenthesized(stream, state) { + stream.next(); // Must be '(' + if (!stream.match(/\s*[\"\')]/, false)) + state.tokenize = tokenString(")"); + else + state.tokenize = null; + return ret(null, "("); + } + + // Context management + + function Context(type, indent, prev) { + this.type = type; + this.indent = indent; + this.prev = prev; + } + + function pushContext(state, stream, type, indent) { + state.context = new Context(type, stream.indentation() + (indent === false ? 0 : indentUnit), state.context); + return type; + } + + function popContext(state) { + if (state.context.prev) + state.context = state.context.prev; + return state.context.type; + } + + function pass(type, stream, state) { + return states[state.context.type](type, stream, state); + } + function popAndPass(type, stream, state, n) { + for (var i = n || 1; i > 0; i--) + state.context = state.context.prev; + return pass(type, stream, state); + } + + // Parser + + function wordAsValue(stream) { + var word = stream.current().toLowerCase(); + if (valueKeywords.hasOwnProperty(word)) + override = "atom"; + else if (colorKeywords.hasOwnProperty(word)) + override = "keyword"; + else + override = "variable"; + } + + var states = {}; + + states.top = function(type, stream, state) { + if (type == "{") { + return pushContext(state, stream, "block"); + } else if (type == "}" && state.context.prev) { + return popContext(state); + } else if (supportsAtComponent && /@component/.test(type)) { + return pushContext(state, stream, "atComponentBlock"); + } else if (/^@(-moz-)?document$/.test(type)) { + return pushContext(state, stream, "documentTypes"); + } else if (/^@(media|supports|(-moz-)?document|import)$/.test(type)) { + return pushContext(state, stream, "atBlock"); + } else if (/^@(font-face|counter-style)/.test(type)) { + state.stateArg = type; + return "restricted_atBlock_before"; + } else if (/^@(-(moz|ms|o|webkit)-)?keyframes$/.test(type)) { + return "keyframes"; + } else if (type && type.charAt(0) == "@") { + return pushContext(state, stream, "at"); + } else if (type == "hash") { + override = "builtin"; + } else if (type == "word") { + override = "tag"; + } else if (type == "variable-definition") { + return "maybeprop"; + } else if (type == "interpolation") { + return pushContext(state, stream, "interpolation"); + } else if (type == ":") { + return "pseudo"; + } else if (allowNested && type == "(") { + return pushContext(state, stream, "parens"); + } + return state.context.type; + }; + + states.block = function(type, stream, state) { + if (type == "word") { + var word = stream.current().toLowerCase(); + if (propertyKeywords.hasOwnProperty(word)) { + override = "property"; + return "maybeprop"; + } else if (nonStandardPropertyKeywords.hasOwnProperty(word)) { + override = "string-2"; + return "maybeprop"; + } else if (allowNested) { + override = stream.match(/^\s*:(?:\s|$)/, false) ? "property" : "tag"; + return "block"; + } else { + override += " error"; + return "maybeprop"; + } + } else if (type == "meta") { + return "block"; + } else if (!allowNested && (type == "hash" || type == "qualifier")) { + override = "error"; + return "block"; + } else { + return states.top(type, stream, state); + } + }; + + states.maybeprop = function(type, stream, state) { + if (type == ":") return pushContext(state, stream, "prop"); + return pass(type, stream, state); + }; + + states.prop = function(type, stream, state) { + if (type == ";") return popContext(state); + if (type == "{" && allowNested) return pushContext(state, stream, "propBlock"); + if (type == "}" || type == "{") return popAndPass(type, stream, state); + if (type == "(") return pushContext(state, stream, "parens"); + + if (type == "hash" && !/^#([0-9a-fA-f]{3,4}|[0-9a-fA-f]{6}|[0-9a-fA-f]{8})$/.test(stream.current())) { + override += " error"; + } else if (type == "word") { + wordAsValue(stream); + } else if (type == "interpolation") { + return pushContext(state, stream, "interpolation"); + } + return "prop"; + }; + + states.propBlock = function(type, _stream, state) { + if (type == "}") return popContext(state); + if (type == "word") { override = "property"; return "maybeprop"; } + return state.context.type; + }; + + states.parens = function(type, stream, state) { + if (type == "{" || type == "}") return popAndPass(type, stream, state); + if (type == ")") return popContext(state); + if (type == "(") return pushContext(state, stream, "parens"); + if (type == "interpolation") return pushContext(state, stream, "interpolation"); + if (type == "word") wordAsValue(stream); + return "parens"; + }; + + states.pseudo = function(type, stream, state) { + if (type == "meta") return "pseudo"; + + if (type == "word") { + override = "variable-3"; + return state.context.type; + } + return pass(type, stream, state); + }; + + states.documentTypes = function(type, stream, state) { + if (type == "word" && documentTypes.hasOwnProperty(stream.current())) { + override = "tag"; + return state.context.type; + } else { + return states.atBlock(type, stream, state); + } + }; + + states.atBlock = function(type, stream, state) { + if (type == "(") return pushContext(state, stream, "atBlock_parens"); + if (type == "}" || type == ";") return popAndPass(type, stream, state); + if (type == "{") return popContext(state) && pushContext(state, stream, allowNested ? "block" : "top"); + + if (type == "interpolation") return pushContext(state, stream, "interpolation"); + + if (type == "word") { + var word = stream.current().toLowerCase(); + if (word == "only" || word == "not" || word == "and" || word == "or") + override = "keyword"; + else if (mediaTypes.hasOwnProperty(word)) + override = "attribute"; + else if (mediaFeatures.hasOwnProperty(word)) + override = "property"; + else if (mediaValueKeywords.hasOwnProperty(word)) + override = "keyword"; + else if (propertyKeywords.hasOwnProperty(word)) + override = "property"; + else if (nonStandardPropertyKeywords.hasOwnProperty(word)) + override = "string-2"; + else if (valueKeywords.hasOwnProperty(word)) + override = "atom"; + else if (colorKeywords.hasOwnProperty(word)) + override = "keyword"; + else + override = "error"; + } + return state.context.type; + }; + + states.atComponentBlock = function(type, stream, state) { + if (type == "}") + return popAndPass(type, stream, state); + if (type == "{") + return popContext(state) && pushContext(state, stream, allowNested ? "block" : "top", false); + if (type == "word") + override = "error"; + return state.context.type; + }; + + states.atBlock_parens = function(type, stream, state) { + if (type == ")") return popContext(state); + if (type == "{" || type == "}") return popAndPass(type, stream, state, 2); + return states.atBlock(type, stream, state); + }; + + states.restricted_atBlock_before = function(type, stream, state) { + if (type == "{") + return pushContext(state, stream, "restricted_atBlock"); + if (type == "word" && state.stateArg == "@counter-style") { + override = "variable"; + return "restricted_atBlock_before"; + } + return pass(type, stream, state); + }; + + states.restricted_atBlock = function(type, stream, state) { + if (type == "}") { + state.stateArg = null; + return popContext(state); + } + if (type == "word") { + if ((state.stateArg == "@font-face" && !fontProperties.hasOwnProperty(stream.current().toLowerCase())) || + (state.stateArg == "@counter-style" && !counterDescriptors.hasOwnProperty(stream.current().toLowerCase()))) + override = "error"; + else + override = "property"; + return "maybeprop"; + } + return "restricted_atBlock"; + }; + + states.keyframes = function(type, stream, state) { + if (type == "word") { override = "variable"; return "keyframes"; } + if (type == "{") return pushContext(state, stream, "top"); + return pass(type, stream, state); + }; + + states.at = function(type, stream, state) { + if (type == ";") return popContext(state); + if (type == "{" || type == "}") return popAndPass(type, stream, state); + if (type == "word") override = "tag"; + else if (type == "hash") override = "builtin"; + return "at"; + }; + + states.interpolation = function(type, stream, state) { + if (type == "}") return popContext(state); + if (type == "{" || type == ";") return popAndPass(type, stream, state); + if (type == "word") override = "variable"; + else if (type != "variable" && type != "(" && type != ")") override = "error"; + return "interpolation"; + }; + + return { + startState: function(base) { + return {tokenize: null, + state: inline ? "block" : "top", + stateArg: null, + context: new Context(inline ? "block" : "top", base || 0, null)}; + }, + + token: function(stream, state) { + if (!state.tokenize && stream.eatSpace()) return null; + var style = (state.tokenize || tokenBase)(stream, state); + if (style && typeof style == "object") { + type = style[1]; + style = style[0]; + } + override = style; + state.state = states[state.state](type, stream, state); + return override; + }, + + indent: function(state, textAfter) { + var cx = state.context, ch = textAfter && textAfter.charAt(0); + var indent = cx.indent; + if (cx.type == "prop" && (ch == "}" || ch == ")")) cx = cx.prev; + if (cx.prev) { + if (ch == "}" && (cx.type == "block" || cx.type == "top" || + cx.type == "interpolation" || cx.type == "restricted_atBlock")) { + // Resume indentation from parent context. + cx = cx.prev; + indent = cx.indent; + } else if (ch == ")" && (cx.type == "parens" || cx.type == "atBlock_parens") || + ch == "{" && (cx.type == "at" || cx.type == "atBlock")) { + // Dedent relative to current context. + indent = Math.max(0, cx.indent - indentUnit); + cx = cx.prev; + } + } + return indent; + }, + + electricChars: "}", + blockCommentStart: "/*", + blockCommentEnd: "*/", + lineComment: lineComment, + fold: "brace" + }; +}); + + function keySet(array) { + var keys = {}; + for (var i = 0; i < array.length; ++i) { + keys[array[i].toLowerCase()] = true; + } + return keys; + } + + var documentTypes_ = [ + "domain", "regexp", "url", "url-prefix" + ], documentTypes = keySet(documentTypes_); + + var mediaTypes_ = [ + "all", "aural", "braille", "handheld", "print", "projection", "screen", + "tty", "tv", "embossed" + ], mediaTypes = keySet(mediaTypes_); + + var mediaFeatures_ = [ + "width", "min-width", "max-width", "height", "min-height", "max-height", + "device-width", "min-device-width", "max-device-width", "device-height", + "min-device-height", "max-device-height", "aspect-ratio", + "min-aspect-ratio", "max-aspect-ratio", "device-aspect-ratio", + "min-device-aspect-ratio", "max-device-aspect-ratio", "color", "min-color", + "max-color", "color-index", "min-color-index", "max-color-index", + "monochrome", "min-monochrome", "max-monochrome", "resolution", + "min-resolution", "max-resolution", "scan", "grid", "orientation", + "device-pixel-ratio", "min-device-pixel-ratio", "max-device-pixel-ratio", + "pointer", "any-pointer", "hover", "any-hover" + ], mediaFeatures = keySet(mediaFeatures_); + + var mediaValueKeywords_ = [ + "landscape", "portrait", "none", "coarse", "fine", "on-demand", "hover", + "interlace", "progressive" + ], mediaValueKeywords = keySet(mediaValueKeywords_); + + var propertyKeywords_ = [ + "align-content", "align-items", "align-self", "alignment-adjust", + "alignment-baseline", "anchor-point", "animation", "animation-delay", + "animation-direction", "animation-duration", "animation-fill-mode", + "animation-iteration-count", "animation-name", "animation-play-state", + "animation-timing-function", "appearance", "azimuth", "backface-visibility", + "background", "background-attachment", "background-blend-mode", "background-clip", + "background-color", "background-image", "background-origin", "background-position", + "background-repeat", "background-size", "baseline-shift", "binding", + "bleed", "bookmark-label", "bookmark-level", "bookmark-state", + "bookmark-target", "border", "border-bottom", "border-bottom-color", + "border-bottom-left-radius", "border-bottom-right-radius", + "border-bottom-style", "border-bottom-width", "border-collapse", + "border-color", "border-image", "border-image-outset", + "border-image-repeat", "border-image-slice", "border-image-source", + "border-image-width", "border-left", "border-left-color", + "border-left-style", "border-left-width", "border-radius", "border-right", + "border-right-color", "border-right-style", "border-right-width", + "border-spacing", "border-style", "border-top", "border-top-color", + "border-top-left-radius", "border-top-right-radius", "border-top-style", + "border-top-width", "border-width", "bottom", "box-decoration-break", + "box-shadow", "box-sizing", "break-after", "break-before", "break-inside", + "caption-side", "clear", "clip", "color", "color-profile", "column-count", + "column-fill", "column-gap", "column-rule", "column-rule-color", + "column-rule-style", "column-rule-width", "column-span", "column-width", + "columns", "content", "counter-increment", "counter-reset", "crop", "cue", + "cue-after", "cue-before", "cursor", "direction", "display", + "dominant-baseline", "drop-initial-after-adjust", + "drop-initial-after-align", "drop-initial-before-adjust", + "drop-initial-before-align", "drop-initial-size", "drop-initial-value", + "elevation", "empty-cells", "fit", "fit-position", "flex", "flex-basis", + "flex-direction", "flex-flow", "flex-grow", "flex-shrink", "flex-wrap", + "float", "float-offset", "flow-from", "flow-into", "font", "font-feature-settings", + "font-family", "font-kerning", "font-language-override", "font-size", "font-size-adjust", + "font-stretch", "font-style", "font-synthesis", "font-variant", + "font-variant-alternates", "font-variant-caps", "font-variant-east-asian", + "font-variant-ligatures", "font-variant-numeric", "font-variant-position", + "font-weight", "grid", "grid-area", "grid-auto-columns", "grid-auto-flow", + "grid-auto-rows", "grid-column", "grid-column-end", "grid-column-gap", + "grid-column-start", "grid-gap", "grid-row", "grid-row-end", "grid-row-gap", + "grid-row-start", "grid-template", "grid-template-areas", "grid-template-columns", + "grid-template-rows", "hanging-punctuation", "height", "hyphens", + "icon", "image-orientation", "image-rendering", "image-resolution", + "inline-box-align", "justify-content", "left", "letter-spacing", + "line-break", "line-height", "line-stacking", "line-stacking-ruby", + "line-stacking-shift", "line-stacking-strategy", "list-style", + "list-style-image", "list-style-position", "list-style-type", "margin", + "margin-bottom", "margin-left", "margin-right", "margin-top", + "marks", "marquee-direction", "marquee-loop", + "marquee-play-count", "marquee-speed", "marquee-style", "max-height", + "max-width", "min-height", "min-width", "move-to", "nav-down", "nav-index", + "nav-left", "nav-right", "nav-up", "object-fit", "object-position", + "opacity", "order", "orphans", "outline", + "outline-color", "outline-offset", "outline-style", "outline-width", + "overflow", "overflow-style", "overflow-wrap", "overflow-x", "overflow-y", + "padding", "padding-bottom", "padding-left", "padding-right", "padding-top", + "page", "page-break-after", "page-break-before", "page-break-inside", + "page-policy", "pause", "pause-after", "pause-before", "perspective", + "perspective-origin", "pitch", "pitch-range", "play-during", "position", + "presentation-level", "punctuation-trim", "quotes", "region-break-after", + "region-break-before", "region-break-inside", "region-fragment", + "rendering-intent", "resize", "rest", "rest-after", "rest-before", "richness", + "right", "rotation", "rotation-point", "ruby-align", "ruby-overhang", + "ruby-position", "ruby-span", "shape-image-threshold", "shape-inside", "shape-margin", + "shape-outside", "size", "speak", "speak-as", "speak-header", + "speak-numeral", "speak-punctuation", "speech-rate", "stress", "string-set", + "tab-size", "table-layout", "target", "target-name", "target-new", + "target-position", "text-align", "text-align-last", "text-decoration", + "text-decoration-color", "text-decoration-line", "text-decoration-skip", + "text-decoration-style", "text-emphasis", "text-emphasis-color", + "text-emphasis-position", "text-emphasis-style", "text-height", + "text-indent", "text-justify", "text-outline", "text-overflow", "text-shadow", + "text-size-adjust", "text-space-collapse", "text-transform", "text-underline-position", + "text-wrap", "top", "transform", "transform-origin", "transform-style", + "transition", "transition-delay", "transition-duration", + "transition-property", "transition-timing-function", "unicode-bidi", + "user-select", "vertical-align", "visibility", "voice-balance", "voice-duration", + "voice-family", "voice-pitch", "voice-range", "voice-rate", "voice-stress", + "voice-volume", "volume", "white-space", "widows", "width", "will-change", "word-break", + "word-spacing", "word-wrap", "z-index", + // SVG-specific + "clip-path", "clip-rule", "mask", "enable-background", "filter", "flood-color", + "flood-opacity", "lighting-color", "stop-color", "stop-opacity", "pointer-events", + "color-interpolation", "color-interpolation-filters", + "color-rendering", "fill", "fill-opacity", "fill-rule", "image-rendering", + "marker", "marker-end", "marker-mid", "marker-start", "shape-rendering", "stroke", + "stroke-dasharray", "stroke-dashoffset", "stroke-linecap", "stroke-linejoin", + "stroke-miterlimit", "stroke-opacity", "stroke-width", "text-rendering", + "baseline-shift", "dominant-baseline", "glyph-orientation-horizontal", + "glyph-orientation-vertical", "text-anchor", "writing-mode" + ], propertyKeywords = keySet(propertyKeywords_); + + var nonStandardPropertyKeywords_ = [ + "scrollbar-arrow-color", "scrollbar-base-color", "scrollbar-dark-shadow-color", + "scrollbar-face-color", "scrollbar-highlight-color", "scrollbar-shadow-color", + "scrollbar-3d-light-color", "scrollbar-track-color", "shape-inside", + "searchfield-cancel-button", "searchfield-decoration", "searchfield-results-button", + "searchfield-results-decoration", "zoom" + ], nonStandardPropertyKeywords = keySet(nonStandardPropertyKeywords_); + + var fontProperties_ = [ + "font-family", "src", "unicode-range", "font-variant", "font-feature-settings", + "font-stretch", "font-weight", "font-style" + ], fontProperties = keySet(fontProperties_); + + var counterDescriptors_ = [ + "additive-symbols", "fallback", "negative", "pad", "prefix", "range", + "speak-as", "suffix", "symbols", "system" + ], counterDescriptors = keySet(counterDescriptors_); + + var colorKeywords_ = [ + "aliceblue", "antiquewhite", "aqua", "aquamarine", "azure", "beige", + "bisque", "black", "blanchedalmond", "blue", "blueviolet", "brown", + "burlywood", "cadetblue", "chartreuse", "chocolate", "coral", "cornflowerblue", + "cornsilk", "crimson", "cyan", "darkblue", "darkcyan", "darkgoldenrod", + "darkgray", "darkgreen", "darkkhaki", "darkmagenta", "darkolivegreen", + "darkorange", "darkorchid", "darkred", "darksalmon", "darkseagreen", + "darkslateblue", "darkslategray", "darkturquoise", "darkviolet", + "deeppink", "deepskyblue", "dimgray", "dodgerblue", "firebrick", + "floralwhite", "forestgreen", "fuchsia", "gainsboro", "ghostwhite", + "gold", "goldenrod", "gray", "grey", "green", "greenyellow", "honeydew", + "hotpink", "indianred", "indigo", "ivory", "khaki", "lavender", + "lavenderblush", "lawngreen", "lemonchiffon", "lightblue", "lightcoral", + "lightcyan", "lightgoldenrodyellow", "lightgray", "lightgreen", "lightpink", + "lightsalmon", "lightseagreen", "lightskyblue", "lightslategray", + "lightsteelblue", "lightyellow", "lime", "limegreen", "linen", "magenta", + "maroon", "mediumaquamarine", "mediumblue", "mediumorchid", "mediumpurple", + "mediumseagreen", "mediumslateblue", "mediumspringgreen", "mediumturquoise", + "mediumvioletred", "midnightblue", "mintcream", "mistyrose", "moccasin", + "navajowhite", "navy", "oldlace", "olive", "olivedrab", "orange", "orangered", + "orchid", "palegoldenrod", "palegreen", "paleturquoise", "palevioletred", + "papayawhip", "peachpuff", "peru", "pink", "plum", "powderblue", + "purple", "rebeccapurple", "red", "rosybrown", "royalblue", "saddlebrown", + "salmon", "sandybrown", "seagreen", "seashell", "sienna", "silver", "skyblue", + "slateblue", "slategray", "snow", "springgreen", "steelblue", "tan", + "teal", "thistle", "tomato", "turquoise", "violet", "wheat", "white", + "whitesmoke", "yellow", "yellowgreen" + ], colorKeywords = keySet(colorKeywords_); + + var valueKeywords_ = [ + "above", "absolute", "activeborder", "additive", "activecaption", "afar", + "after-white-space", "ahead", "alias", "all", "all-scroll", "alphabetic", "alternate", + "always", "amharic", "amharic-abegede", "antialiased", "appworkspace", + "arabic-indic", "armenian", "asterisks", "attr", "auto", "auto-flow", "avoid", "avoid-column", "avoid-page", + "avoid-region", "background", "backwards", "baseline", "below", "bidi-override", "binary", + "bengali", "blink", "block", "block-axis", "bold", "bolder", "border", "border-box", + "both", "bottom", "break", "break-all", "break-word", "bullets", "button", "button-bevel", + "buttonface", "buttonhighlight", "buttonshadow", "buttontext", "calc", "cambodian", + "capitalize", "caps-lock-indicator", "caption", "captiontext", "caret", + "cell", "center", "checkbox", "circle", "cjk-decimal", "cjk-earthly-branch", + "cjk-heavenly-stem", "cjk-ideographic", "clear", "clip", "close-quote", + "col-resize", "collapse", "color", "color-burn", "color-dodge", "column", "column-reverse", + "compact", "condensed", "contain", "content", "contents", + "content-box", "context-menu", "continuous", "copy", "counter", "counters", "cover", "crop", + "cross", "crosshair", "currentcolor", "cursive", "cyclic", "darken", "dashed", "decimal", + "decimal-leading-zero", "default", "default-button", "dense", "destination-atop", + "destination-in", "destination-out", "destination-over", "devanagari", "difference", + "disc", "discard", "disclosure-closed", "disclosure-open", "document", + "dot-dash", "dot-dot-dash", + "dotted", "double", "down", "e-resize", "ease", "ease-in", "ease-in-out", "ease-out", + "element", "ellipse", "ellipsis", "embed", "end", "ethiopic", "ethiopic-abegede", + "ethiopic-abegede-am-et", "ethiopic-abegede-gez", "ethiopic-abegede-ti-er", + "ethiopic-abegede-ti-et", "ethiopic-halehame-aa-er", + "ethiopic-halehame-aa-et", "ethiopic-halehame-am-et", + "ethiopic-halehame-gez", "ethiopic-halehame-om-et", + "ethiopic-halehame-sid-et", "ethiopic-halehame-so-et", + "ethiopic-halehame-ti-er", "ethiopic-halehame-ti-et", "ethiopic-halehame-tig", + "ethiopic-numeric", "ew-resize", "exclusion", "expanded", "extends", "extra-condensed", + "extra-expanded", "fantasy", "fast", "fill", "fixed", "flat", "flex", "flex-end", "flex-start", "footnotes", + "forwards", "from", "geometricPrecision", "georgian", "graytext", "grid", "groove", + "gujarati", "gurmukhi", "hand", "hangul", "hangul-consonant", "hard-light", "hebrew", + "help", "hidden", "hide", "higher", "highlight", "highlighttext", + "hiragana", "hiragana-iroha", "horizontal", "hsl", "hsla", "hue", "icon", "ignore", + "inactiveborder", "inactivecaption", "inactivecaptiontext", "infinite", + "infobackground", "infotext", "inherit", "initial", "inline", "inline-axis", + "inline-block", "inline-flex", "inline-grid", "inline-table", "inset", "inside", "intrinsic", "invert", + "italic", "japanese-formal", "japanese-informal", "justify", "kannada", + "katakana", "katakana-iroha", "keep-all", "khmer", + "korean-hangul-formal", "korean-hanja-formal", "korean-hanja-informal", + "landscape", "lao", "large", "larger", "left", "level", "lighter", "lighten", + "line-through", "linear", "linear-gradient", "lines", "list-item", "listbox", "listitem", + "local", "logical", "loud", "lower", "lower-alpha", "lower-armenian", + "lower-greek", "lower-hexadecimal", "lower-latin", "lower-norwegian", + "lower-roman", "lowercase", "ltr", "luminosity", "malayalam", "match", "matrix", "matrix3d", + "media-controls-background", "media-current-time-display", + "media-fullscreen-button", "media-mute-button", "media-play-button", + "media-return-to-realtime-button", "media-rewind-button", + "media-seek-back-button", "media-seek-forward-button", "media-slider", + "media-sliderthumb", "media-time-remaining-display", "media-volume-slider", + "media-volume-slider-container", "media-volume-sliderthumb", "medium", + "menu", "menulist", "menulist-button", "menulist-text", + "menulist-textfield", "menutext", "message-box", "middle", "min-intrinsic", + "mix", "mongolian", "monospace", "move", "multiple", "multiply", "myanmar", "n-resize", + "narrower", "ne-resize", "nesw-resize", "no-close-quote", "no-drop", + "no-open-quote", "no-repeat", "none", "normal", "not-allowed", "nowrap", + "ns-resize", "numbers", "numeric", "nw-resize", "nwse-resize", "oblique", "octal", "opacity", "open-quote", + "optimizeLegibility", "optimizeSpeed", "oriya", "oromo", "outset", + "outside", "outside-shape", "overlay", "overline", "padding", "padding-box", + "painted", "page", "paused", "persian", "perspective", "plus-darker", "plus-lighter", + "pointer", "polygon", "portrait", "pre", "pre-line", "pre-wrap", "preserve-3d", + "progress", "push-button", "radial-gradient", "radio", "read-only", + "read-write", "read-write-plaintext-only", "rectangle", "region", + "relative", "repeat", "repeating-linear-gradient", + "repeating-radial-gradient", "repeat-x", "repeat-y", "reset", "reverse", + "rgb", "rgba", "ridge", "right", "rotate", "rotate3d", "rotateX", "rotateY", + "rotateZ", "round", "row", "row-resize", "row-reverse", "rtl", "run-in", "running", + "s-resize", "sans-serif", "saturation", "scale", "scale3d", "scaleX", "scaleY", "scaleZ", "screen", + "scroll", "scrollbar", "scroll-position", "se-resize", "searchfield", + "searchfield-cancel-button", "searchfield-decoration", + "searchfield-results-button", "searchfield-results-decoration", + "semi-condensed", "semi-expanded", "separate", "serif", "show", "sidama", + "simp-chinese-formal", "simp-chinese-informal", "single", + "skew", "skewX", "skewY", "skip-white-space", "slide", "slider-horizontal", + "slider-vertical", "sliderthumb-horizontal", "sliderthumb-vertical", "slow", + "small", "small-caps", "small-caption", "smaller", "soft-light", "solid", "somali", + "source-atop", "source-in", "source-out", "source-over", "space", "space-around", "space-between", "spell-out", "square", + "square-button", "start", "static", "status-bar", "stretch", "stroke", "sub", + "subpixel-antialiased", "super", "sw-resize", "symbolic", "symbols", "system-ui", "table", + "table-caption", "table-cell", "table-column", "table-column-group", + "table-footer-group", "table-header-group", "table-row", "table-row-group", + "tamil", + "telugu", "text", "text-bottom", "text-top", "textarea", "textfield", "thai", + "thick", "thin", "threeddarkshadow", "threedface", "threedhighlight", + "threedlightshadow", "threedshadow", "tibetan", "tigre", "tigrinya-er", + "tigrinya-er-abegede", "tigrinya-et", "tigrinya-et-abegede", "to", "top", + "trad-chinese-formal", "trad-chinese-informal", "transform", + "translate", "translate3d", "translateX", "translateY", "translateZ", + "transparent", "ultra-condensed", "ultra-expanded", "underline", "unset", "up", + "upper-alpha", "upper-armenian", "upper-greek", "upper-hexadecimal", + "upper-latin", "upper-norwegian", "upper-roman", "uppercase", "urdu", "url", + "var", "vertical", "vertical-text", "visible", "visibleFill", "visiblePainted", + "visibleStroke", "visual", "w-resize", "wait", "wave", "wider", + "window", "windowframe", "windowtext", "words", "wrap", "wrap-reverse", "x-large", "x-small", "xor", + "xx-large", "xx-small" + ], valueKeywords = keySet(valueKeywords_); + + var allWords = documentTypes_.concat(mediaTypes_).concat(mediaFeatures_).concat(mediaValueKeywords_) + .concat(propertyKeywords_).concat(nonStandardPropertyKeywords_).concat(colorKeywords_) + .concat(valueKeywords_); + CodeMirror.registerHelper("hintWords", "css", allWords); + + function tokenCComment(stream, state) { + var maybeEnd = false, ch; + while ((ch = stream.next()) != null) { + if (maybeEnd && ch == "/") { + state.tokenize = null; + break; + } + maybeEnd = (ch == "*"); + } + return ["comment", "comment"]; + } + + CodeMirror.defineMIME("text/css", { + documentTypes: documentTypes, + mediaTypes: mediaTypes, + mediaFeatures: mediaFeatures, + mediaValueKeywords: mediaValueKeywords, + propertyKeywords: propertyKeywords, + nonStandardPropertyKeywords: nonStandardPropertyKeywords, + fontProperties: fontProperties, + counterDescriptors: counterDescriptors, + colorKeywords: colorKeywords, + valueKeywords: valueKeywords, + tokenHooks: { + "/": function(stream, state) { + if (!stream.eat("*")) return false; + state.tokenize = tokenCComment; + return tokenCComment(stream, state); + } + }, + name: "css" + }); + + CodeMirror.defineMIME("text/x-scss", { + mediaTypes: mediaTypes, + mediaFeatures: mediaFeatures, + mediaValueKeywords: mediaValueKeywords, + propertyKeywords: propertyKeywords, + nonStandardPropertyKeywords: nonStandardPropertyKeywords, + colorKeywords: colorKeywords, + valueKeywords: valueKeywords, + fontProperties: fontProperties, + allowNested: true, + lineComment: "//", + tokenHooks: { + "/": function(stream, state) { + if (stream.eat("/")) { + stream.skipToEnd(); + return ["comment", "comment"]; + } else if (stream.eat("*")) { + state.tokenize = tokenCComment; + return tokenCComment(stream, state); + } else { + return ["operator", "operator"]; + } + }, + ":": function(stream) { + if (stream.match(/\s*\{/)) + return [null, "{"]; + return false; + }, + "$": function(stream) { + stream.match(/^[\w-]+/); + if (stream.match(/^\s*:/, false)) + return ["variable-2", "variable-definition"]; + return ["variable-2", "variable"]; + }, + "#": function(stream) { + if (!stream.eat("{")) return false; + return [null, "interpolation"]; + } + }, + name: "css", + helperType: "scss" + }); + + CodeMirror.defineMIME("text/x-less", { + mediaTypes: mediaTypes, + mediaFeatures: mediaFeatures, + mediaValueKeywords: mediaValueKeywords, + propertyKeywords: propertyKeywords, + nonStandardPropertyKeywords: nonStandardPropertyKeywords, + colorKeywords: colorKeywords, + valueKeywords: valueKeywords, + fontProperties: fontProperties, + allowNested: true, + lineComment: "//", + tokenHooks: { + "/": function(stream, state) { + if (stream.eat("/")) { + stream.skipToEnd(); + return ["comment", "comment"]; + } else if (stream.eat("*")) { + state.tokenize = tokenCComment; + return tokenCComment(stream, state); + } else { + return ["operator", "operator"]; + } + }, + "@": function(stream) { + if (stream.eat("{")) return [null, "interpolation"]; + if (stream.match(/^(charset|document|font-face|import|(-(moz|ms|o|webkit)-)?keyframes|media|namespace|page|supports)\b/, false)) return false; + stream.eatWhile(/[\w\\\-]/); + if (stream.match(/^\s*:/, false)) + return ["variable-2", "variable-definition"]; + return ["variable-2", "variable"]; + }, + "&": function() { + return ["atom", "atom"]; + } + }, + name: "css", + helperType: "less" + }); + + CodeMirror.defineMIME("text/x-gss", { + documentTypes: documentTypes, + mediaTypes: mediaTypes, + mediaFeatures: mediaFeatures, + propertyKeywords: propertyKeywords, + nonStandardPropertyKeywords: nonStandardPropertyKeywords, + fontProperties: fontProperties, + counterDescriptors: counterDescriptors, + colorKeywords: colorKeywords, + valueKeywords: valueKeywords, + supportsAtComponent: true, + tokenHooks: { + "/": function(stream, state) { + if (!stream.eat("*")) return false; + state.tokenize = tokenCComment; + return tokenCComment(stream, state); + } + }, + name: "css", + helperType: "gss" + }); + +}); diff --git a/src/js/codemirror.js b/src/js/codemirror.js new file mode 100644 index 0000000..f6b0d5d --- /dev/null +++ b/src/js/codemirror.js @@ -0,0 +1,9305 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: http://codemirror.net/LICENSE + +// This is CodeMirror (http://codemirror.net), a code editor +// implemented in JavaScript on top of the browser's DOM. +// +// You can find some technical background for some of the code below +// at http://marijnhaverbeke.nl/blog/#cm-internals . + +(function (global, factory) { + typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() : + typeof define === 'function' && define.amd ? define(factory) : + (global.CodeMirror = factory()); +}(this, (function () { 'use strict'; + +// Kludges for bugs and behavior differences that can't be feature +// detected are enabled based on userAgent etc sniffing. +var userAgent = navigator.userAgent; +var platform = navigator.platform; + +var gecko = /gecko\/\d/i.test(userAgent); +var ie_upto10 = /MSIE \d/.test(userAgent); +var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent); +var edge = /Edge\/(\d+)/.exec(userAgent); +var ie = ie_upto10 || ie_11up || edge; +var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : +(edge || ie_11up)[1]); +var webkit = !edge && /WebKit\//.test(userAgent); +var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent); +var chrome = !edge && /Chrome\//.test(userAgent); +var presto = /Opera\//.test(userAgent); +var safari = /Apple Computer/.test(navigator.vendor); +var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent); +var phantom = /PhantomJS/.test(userAgent); + +var ios = !edge && /AppleWebKit/.test(userAgent) && /Mobile\/\w+/.test(userAgent); +var android = /Android/.test(userAgent); +// This is woefully incomplete. Suggestions for alternative methods welcome. +var mobile = ios || android || /webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent); +var mac = ios || /Mac/.test(platform); +var chromeOS = /\bCrOS\b/.test(userAgent); +var windows = /win/i.test(platform); + +var presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/); +if (presto_version) { presto_version = Number(presto_version[1]); } +if (presto_version && presto_version >= 15) { presto = false; webkit = true; } +// Some browsers use the wrong event properties to signal cmd/ctrl on OS X +var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11)); +var captureRightClick = gecko || (ie && ie_version >= 9); + +function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*") } + +var rmClass = function(node, cls) { + var current = node.className; + var match = classTest(cls).exec(current); + if (match) { + var after = current.slice(match.index + match[0].length); + node.className = current.slice(0, match.index) + (after ? match[1] + after : ""); + } +}; + +function removeChildren(e) { + for (var count = e.childNodes.length; count > 0; --count) + { e.removeChild(e.firstChild); } + return e +} + +function removeChildrenAndAdd(parent, e) { + return removeChildren(parent).appendChild(e) +} + +function elt(tag, content, className, style) { + var e = document.createElement(tag); + if (className) { e.className = className; } + if (style) { e.style.cssText = style; } + if (typeof content == "string") { e.appendChild(document.createTextNode(content)); } + else if (content) { for (var i = 0; i < content.length; ++i) { e.appendChild(content[i]); } } + return e +} +// wrapper for elt, which removes the elt from the accessibility tree +function eltP(tag, content, className, style) { + var e = elt(tag, content, className, style); + e.setAttribute("role", "presentation"); + return e +} + +var range; +if (document.createRange) { range = function(node, start, end, endNode) { + var r = document.createRange(); + r.setEnd(endNode || node, end); + r.setStart(node, start); + return r +}; } +else { range = function(node, start, end) { + var r = document.body.createTextRange(); + try { r.moveToElementText(node.parentNode); } + catch(e) { return r } + r.collapse(true); + r.moveEnd("character", end); + r.moveStart("character", start); + return r +}; } + +function contains(parent, child) { + if (child.nodeType == 3) // Android browser always returns false when child is a textnode + { child = child.parentNode; } + if (parent.contains) + { return parent.contains(child) } + do { + if (child.nodeType == 11) { child = child.host; } + if (child == parent) { return true } + } while (child = child.parentNode) +} + +function activeElt() { + // IE and Edge may throw an "Unspecified Error" when accessing document.activeElement. + // IE < 10 will throw when accessed while the page is loading or in an iframe. + // IE > 9 and Edge will throw when accessed in an iframe if document.body is unavailable. + var activeElement; + try { + activeElement = document.activeElement; + } catch(e) { + activeElement = document.body || null; + } + while (activeElement && activeElement.shadowRoot && activeElement.shadowRoot.activeElement) + { activeElement = activeElement.shadowRoot.activeElement; } + return activeElement +} + +function addClass(node, cls) { + var current = node.className; + if (!classTest(cls).test(current)) { node.className += (current ? " " : "") + cls; } +} +function joinClasses(a, b) { + var as = a.split(" "); + for (var i = 0; i < as.length; i++) + { if (as[i] && !classTest(as[i]).test(b)) { b += " " + as[i]; } } + return b +} + +var selectInput = function(node) { node.select(); }; +if (ios) // Mobile Safari apparently has a bug where select() is broken. + { selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; }; } +else if (ie) // Suppress mysterious IE10 errors + { selectInput = function(node) { try { node.select(); } catch(_e) {} }; } + +function bind(f) { + var args = Array.prototype.slice.call(arguments, 1); + return function(){return f.apply(null, args)} +} + +function copyObj(obj, target, overwrite) { + if (!target) { target = {}; } + for (var prop in obj) + { if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop))) + { target[prop] = obj[prop]; } } + return target +} + +// Counts the column offset in a string, taking tabs into account. +// Used mostly to find indentation. +function countColumn(string, end, tabSize, startIndex, startValue) { + if (end == null) { + end = string.search(/[^\s\u00a0]/); + if (end == -1) { end = string.length; } + } + for (var i = startIndex || 0, n = startValue || 0;;) { + var nextTab = string.indexOf("\t", i); + if (nextTab < 0 || nextTab >= end) + { return n + (end - i) } + n += nextTab - i; + n += tabSize - (n % tabSize); + i = nextTab + 1; + } +} + +var Delayed = function() {this.id = null;}; +Delayed.prototype.set = function (ms, f) { + clearTimeout(this.id); + this.id = setTimeout(f, ms); +}; + +function indexOf(array, elt) { + for (var i = 0; i < array.length; ++i) + { if (array[i] == elt) { return i } } + return -1 +} + +// Number of pixels added to scroller and sizer to hide scrollbar +var scrollerGap = 30; + +// Returned or thrown by various protocols to signal 'I'm not +// handling this'. +var Pass = {toString: function(){return "CodeMirror.Pass"}}; + +// Reused option objects for setSelection & friends +var sel_dontScroll = {scroll: false}; +var sel_mouse = {origin: "*mouse"}; +var sel_move = {origin: "+move"}; + +// The inverse of countColumn -- find the offset that corresponds to +// a particular column. +function findColumn(string, goal, tabSize) { + for (var pos = 0, col = 0;;) { + var nextTab = string.indexOf("\t", pos); + if (nextTab == -1) { nextTab = string.length; } + var skipped = nextTab - pos; + if (nextTab == string.length || col + skipped >= goal) + { return pos + Math.min(skipped, goal - col) } + col += nextTab - pos; + col += tabSize - (col % tabSize); + pos = nextTab + 1; + if (col >= goal) { return pos } + } +} + +var spaceStrs = [""]; +function spaceStr(n) { + while (spaceStrs.length <= n) + { spaceStrs.push(lst(spaceStrs) + " "); } + return spaceStrs[n] +} + +function lst(arr) { return arr[arr.length-1] } + +function map(array, f) { + var out = []; + for (var i = 0; i < array.length; i++) { out[i] = f(array[i], i); } + return out +} + +function insertSorted(array, value, score) { + var pos = 0, priority = score(value); + while (pos < array.length && score(array[pos]) <= priority) { pos++; } + array.splice(pos, 0, value); +} + +function nothing() {} + +function createObj(base, props) { + var inst; + if (Object.create) { + inst = Object.create(base); + } else { + nothing.prototype = base; + inst = new nothing(); + } + if (props) { copyObj(props, inst); } + return inst +} + +var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/; +function isWordCharBasic(ch) { + return /\w/.test(ch) || ch > "\x80" && + (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch)) +} +function isWordChar(ch, helper) { + if (!helper) { return isWordCharBasic(ch) } + if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) { return true } + return helper.test(ch) +} + +function isEmpty(obj) { + for (var n in obj) { if (obj.hasOwnProperty(n) && obj[n]) { return false } } + return true +} + +// Extending unicode characters. A series of a non-extending char + +// any number of extending chars is treated as a single unit as far +// as editing and measuring is concerned. This is not fully correct, +// since some scripts/fonts/browsers also treat other configurations +// of code points as a group. +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]/; +function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) } + +// Returns a number from the range [`0`; `str.length`] unless `pos` is outside that range. +function skipExtendingChars(str, pos, dir) { + while ((dir < 0 ? pos > 0 : pos < str.length) && isExtendingChar(str.charAt(pos))) { pos += dir; } + return pos +} + +// Returns the value from the range [`from`; `to`] that satisfies +// `pred` and is closest to `from`. Assumes that at least `to` satisfies `pred`. +function findFirst(pred, from, to) { + for (;;) { + if (Math.abs(from - to) <= 1) { return pred(from) ? from : to } + var mid = Math.floor((from + to) / 2); + if (pred(mid)) { to = mid; } + else { from = mid; } + } +} + +// The display handles the DOM integration, both for input reading +// and content drawing. It holds references to DOM nodes and +// display-related state. + +function Display(place, doc, input) { + var d = this; + this.input = input; + + // Covers bottom-right square when both scrollbars are present. + d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler"); + d.scrollbarFiller.setAttribute("cm-not-content", "true"); + // Covers bottom of gutter when coverGutterNextToScrollbar is on + // and h scrollbar is present. + d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler"); + d.gutterFiller.setAttribute("cm-not-content", "true"); + // Will contain the actual code, positioned to cover the viewport. + d.lineDiv = eltP("div", null, "CodeMirror-code"); + // Elements are added to these to represent selection and cursors. + d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1"); + d.cursorDiv = elt("div", null, "CodeMirror-cursors"); + // A visibility: hidden element used to find the size of things. + d.measure = elt("div", null, "CodeMirror-measure"); + // When lines outside of the viewport are measured, they are drawn in this. + d.lineMeasure = elt("div", null, "CodeMirror-measure"); + // Wraps everything that needs to exist inside the vertically-padded coordinate system + d.lineSpace = eltP("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv], + null, "position: relative; outline: none"); + var lines = eltP("div", [d.lineSpace], "CodeMirror-lines"); + // Moved around its parent to cover visible view. + d.mover = elt("div", [lines], null, "position: relative"); + // Set to the height of the document, allowing scrolling. + d.sizer = elt("div", [d.mover], "CodeMirror-sizer"); + d.sizerWidth = null; + // Behavior of elts with overflow: auto and padding is + // inconsistent across browsers. This is used to ensure the + // scrollable area is big enough. + d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;"); + // Will contain the gutters, if any. + d.gutters = elt("div", null, "CodeMirror-gutters"); + d.lineGutter = null; + // Actual scrollable element. + d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll"); + d.scroller.setAttribute("tabIndex", "-1"); + // The element in which the editor lives. + d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror"); + + // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported) + if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; } + if (!webkit && !(gecko && mobile)) { d.scroller.draggable = true; } + + if (place) { + if (place.appendChild) { place.appendChild(d.wrapper); } + else { place(d.wrapper); } + } + + // Current rendered range (may be bigger than the view window). + d.viewFrom = d.viewTo = doc.first; + d.reportedViewFrom = d.reportedViewTo = doc.first; + // Information about the rendered lines. + d.view = []; + d.renderedView = null; + // Holds info about a single rendered line when it was rendered + // for measurement, while not in view. + d.externalMeasured = null; + // Empty space (in pixels) above the view + d.viewOffset = 0; + d.lastWrapHeight = d.lastWrapWidth = 0; + d.updateLineNumbers = null; + + d.nativeBarWidth = d.barHeight = d.barWidth = 0; + d.scrollbarsClipped = false; + + // Used to only resize the line number gutter when necessary (when + // the amount of lines crosses a boundary that makes its width change) + d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null; + // Set to true when a non-horizontal-scrolling line widget is + // added. As an optimization, line widget aligning is skipped when + // this is false. + d.alignWidgets = false; + + d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null; + + // Tracks the maximum line length so that the horizontal scrollbar + // can be kept static when scrolling. + d.maxLine = null; + d.maxLineLength = 0; + d.maxLineChanged = false; + + // Used for measuring wheel scrolling granularity + d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null; + + // True when shift is held down. + d.shift = false; + + // Used to track whether anything happened since the context menu + // was opened. + d.selForContextMenu = null; + + d.activeTouch = null; + + input.init(d); +} + +// Find the line object corresponding to the given line number. +function getLine(doc, n) { + n -= doc.first; + if (n < 0 || n >= doc.size) { throw new Error("There is no line " + (n + doc.first) + " in the document.") } + var chunk = doc; + while (!chunk.lines) { + for (var i = 0;; ++i) { + var child = chunk.children[i], sz = child.chunkSize(); + if (n < sz) { chunk = child; break } + n -= sz; + } + } + return chunk.lines[n] +} + +// Get the part of a document between two positions, as an array of +// strings. +function getBetween(doc, start, end) { + var out = [], n = start.line; + doc.iter(start.line, end.line + 1, function (line) { + var text = line.text; + if (n == end.line) { text = text.slice(0, end.ch); } + if (n == start.line) { text = text.slice(start.ch); } + out.push(text); + ++n; + }); + return out +} +// Get the lines between from and to, as array of strings. +function getLines(doc, from, to) { + var out = []; + doc.iter(from, to, function (line) { out.push(line.text); }); // iter aborts when callback returns truthy value + return out +} + +// Update the height of a line, propagating the height change +// upwards to parent nodes. +function updateLineHeight(line, height) { + var diff = height - line.height; + if (diff) { for (var n = line; n; n = n.parent) { n.height += diff; } } +} + +// Given a line object, find its line number by walking up through +// its parent links. +function lineNo(line) { + if (line.parent == null) { return null } + var cur = line.parent, no = indexOf(cur.lines, line); + for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) { + for (var i = 0;; ++i) { + if (chunk.children[i] == cur) { break } + no += chunk.children[i].chunkSize(); + } + } + return no + cur.first +} + +// Find the line at the given vertical position, using the height +// information in the document tree. +function lineAtHeight(chunk, h) { + var n = chunk.first; + outer: do { + for (var i$1 = 0; i$1 < chunk.children.length; ++i$1) { + var child = chunk.children[i$1], ch = child.height; + if (h < ch) { chunk = child; continue outer } + h -= ch; + n += child.chunkSize(); + } + return n + } while (!chunk.lines) + var i = 0; + for (; i < chunk.lines.length; ++i) { + var line = chunk.lines[i], lh = line.height; + if (h < lh) { break } + h -= lh; + } + return n + i +} + +function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size} + +function lineNumberFor(options, i) { + return String(options.lineNumberFormatter(i + options.firstLineNumber)) +} + +// A Pos instance represents a position within the text. +function Pos(line, ch, sticky) { + if ( sticky === void 0 ) sticky = null; + + if (!(this instanceof Pos)) { return new Pos(line, ch, sticky) } + this.line = line; + this.ch = ch; + this.sticky = sticky; +} + +// Compare two positions, return 0 if they are the same, a negative +// number when a is less, and a positive number otherwise. +function cmp(a, b) { return a.line - b.line || a.ch - b.ch } + +function equalCursorPos(a, b) { return a.sticky == b.sticky && cmp(a, b) == 0 } + +function copyPos(x) {return Pos(x.line, x.ch)} +function maxPos(a, b) { return cmp(a, b) < 0 ? b : a } +function minPos(a, b) { return cmp(a, b) < 0 ? a : b } + +// Most of the external API clips given positions to make sure they +// actually exist within the document. +function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))} +function clipPos(doc, pos) { + if (pos.line < doc.first) { return Pos(doc.first, 0) } + var last = doc.first + doc.size - 1; + if (pos.line > last) { return Pos(last, getLine(doc, last).text.length) } + return clipToLen(pos, getLine(doc, pos.line).text.length) +} +function clipToLen(pos, linelen) { + var ch = pos.ch; + if (ch == null || ch > linelen) { return Pos(pos.line, linelen) } + else if (ch < 0) { return Pos(pos.line, 0) } + else { return pos } +} +function clipPosArray(doc, array) { + var out = []; + for (var i = 0; i < array.length; i++) { out[i] = clipPos(doc, array[i]); } + return out +} + +// Optimize some code when these features are not used. +var sawReadOnlySpans = false; +var sawCollapsedSpans = false; + +function seeReadOnlySpans() { + sawReadOnlySpans = true; +} + +function seeCollapsedSpans() { + sawCollapsedSpans = true; +} + +// TEXTMARKER SPANS + +function MarkedSpan(marker, from, to) { + this.marker = marker; + this.from = from; this.to = to; +} + +// Search an array of spans for a span matching the given marker. +function getMarkedSpanFor(spans, marker) { + if (spans) { for (var i = 0; i < spans.length; ++i) { + var span = spans[i]; + if (span.marker == marker) { return span } + } } +} +// Remove a span from an array, returning undefined if no spans are +// left (we don't store arrays for lines without spans). +function removeMarkedSpan(spans, span) { + var r; + for (var i = 0; i < spans.length; ++i) + { if (spans[i] != span) { (r || (r = [])).push(spans[i]); } } + return r +} +// Add a span to a line. +function addMarkedSpan(line, span) { + line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span]; + span.marker.attachLine(line); +} + +// Used for the algorithm that adjusts markers for a change in the +// document. These functions cut an array of spans at a given +// character position, returning an array of remaining chunks (or +// undefined if nothing remains). +function markedSpansBefore(old, startCh, isInsert) { + var nw; + if (old) { for (var i = 0; i < old.length; ++i) { + var span = old[i], marker = span.marker; + var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh); + if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) { + var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh);(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to)); + } + } } + return nw +} +function markedSpansAfter(old, endCh, isInsert) { + var nw; + if (old) { for (var i = 0; i < old.length; ++i) { + var span = old[i], marker = span.marker; + var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh); + if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) { + var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh);(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh, + span.to == null ? null : span.to - endCh)); + } + } } + return nw +} + +// Given a change object, compute the new set of marker spans that +// cover the line in which the change took place. Removes spans +// entirely within the change, reconnects spans belonging to the +// same marker that appear on both sides of the change, and cuts off +// spans partially within the change. Returns an array of span +// arrays with one element for each line in (after) the change. +function stretchSpansOverChange(doc, change) { + if (change.full) { return null } + var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans; + var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans; + if (!oldFirst && !oldLast) { return null } + + var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0; + // Get the spans that 'stick out' on both sides + var first = markedSpansBefore(oldFirst, startCh, isInsert); + var last = markedSpansAfter(oldLast, endCh, isInsert); + + // Next, merge those two ends + var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0); + if (first) { + // Fix up .to properties of first + for (var i = 0; i < first.length; ++i) { + var span = first[i]; + if (span.to == null) { + var found = getMarkedSpanFor(last, span.marker); + if (!found) { span.to = startCh; } + else if (sameLine) { span.to = found.to == null ? null : found.to + offset; } + } + } + } + if (last) { + // Fix up .from in last (or move them into first in case of sameLine) + for (var i$1 = 0; i$1 < last.length; ++i$1) { + var span$1 = last[i$1]; + if (span$1.to != null) { span$1.to += offset; } + if (span$1.from == null) { + var found$1 = getMarkedSpanFor(first, span$1.marker); + if (!found$1) { + span$1.from = offset; + if (sameLine) { (first || (first = [])).push(span$1); } + } + } else { + span$1.from += offset; + if (sameLine) { (first || (first = [])).push(span$1); } + } + } + } + // Make sure we didn't create any zero-length spans + if (first) { first = clearEmptySpans(first); } + if (last && last != first) { last = clearEmptySpans(last); } + + var newMarkers = [first]; + if (!sameLine) { + // Fill gap with whole-line-spans + var gap = change.text.length - 2, gapMarkers; + if (gap > 0 && first) + { for (var i$2 = 0; i$2 < first.length; ++i$2) + { if (first[i$2].to == null) + { (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i$2].marker, null, null)); } } } + for (var i$3 = 0; i$3 < gap; ++i$3) + { newMarkers.push(gapMarkers); } + newMarkers.push(last); + } + return newMarkers +} + +// Remove spans that are empty and don't have a clearWhenEmpty +// option of false. +function clearEmptySpans(spans) { + for (var i = 0; i < spans.length; ++i) { + var span = spans[i]; + if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false) + { spans.splice(i--, 1); } + } + if (!spans.length) { return null } + return spans +} + +// Used to 'clip' out readOnly ranges when making a change. +function removeReadOnlyRanges(doc, from, to) { + var markers = null; + doc.iter(from.line, to.line + 1, function (line) { + if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) { + var mark = line.markedSpans[i].marker; + if (mark.readOnly && (!markers || indexOf(markers, mark) == -1)) + { (markers || (markers = [])).push(mark); } + } } + }); + if (!markers) { return null } + var parts = [{from: from, to: to}]; + for (var i = 0; i < markers.length; ++i) { + var mk = markers[i], m = mk.find(0); + for (var j = 0; j < parts.length; ++j) { + var p = parts[j]; + if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) { continue } + var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to); + if (dfrom < 0 || !mk.inclusiveLeft && !dfrom) + { newParts.push({from: p.from, to: m.from}); } + if (dto > 0 || !mk.inclusiveRight && !dto) + { newParts.push({from: m.to, to: p.to}); } + parts.splice.apply(parts, newParts); + j += newParts.length - 3; + } + } + return parts +} + +// Connect or disconnect spans from a line. +function detachMarkedSpans(line) { + var spans = line.markedSpans; + if (!spans) { return } + for (var i = 0; i < spans.length; ++i) + { spans[i].marker.detachLine(line); } + line.markedSpans = null; +} +function attachMarkedSpans(line, spans) { + if (!spans) { return } + for (var i = 0; i < spans.length; ++i) + { spans[i].marker.attachLine(line); } + line.markedSpans = spans; +} + +// Helpers used when computing which overlapping collapsed span +// counts as the larger one. +function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 } +function extraRight(marker) { return marker.inclusiveRight ? 1 : 0 } + +// Returns a number indicating which of two overlapping collapsed +// spans is larger (and thus includes the other). Falls back to +// comparing ids when the spans cover exactly the same range. +function compareCollapsedMarkers(a, b) { + var lenDiff = a.lines.length - b.lines.length; + if (lenDiff != 0) { return lenDiff } + var aPos = a.find(), bPos = b.find(); + var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b); + if (fromCmp) { return -fromCmp } + var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b); + if (toCmp) { return toCmp } + return b.id - a.id +} + +// Find out whether a line ends or starts in a collapsed span. If +// so, return the marker for that span. +function collapsedSpanAtSide(line, start) { + var sps = sawCollapsedSpans && line.markedSpans, found; + if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) { + sp = sps[i]; + if (sp.marker.collapsed && (start ? sp.from : sp.to) == null && + (!found || compareCollapsedMarkers(found, sp.marker) < 0)) + { found = sp.marker; } + } } + return found +} +function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) } +function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) } + +// Test whether there exists a collapsed span that partially +// overlaps (covers the start or end, but not both) of a new span. +// Such overlap is not allowed. +function conflictingCollapsedRange(doc, lineNo$$1, from, to, marker) { + var line = getLine(doc, lineNo$$1); + var sps = sawCollapsedSpans && line.markedSpans; + if (sps) { for (var i = 0; i < sps.length; ++i) { + var sp = sps[i]; + if (!sp.marker.collapsed) { continue } + var found = sp.marker.find(0); + var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker); + var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker); + if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) { continue } + if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) || + fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0)) + { return true } + } } +} + +// A visual line is a line as drawn on the screen. Folding, for +// example, can cause multiple logical lines to appear on the same +// visual line. This finds the start of the visual line that the +// given line is part of (usually that is the line itself). +function visualLine(line) { + var merged; + while (merged = collapsedSpanAtStart(line)) + { line = merged.find(-1, true).line; } + return line +} + +function visualLineEnd(line) { + var merged; + while (merged = collapsedSpanAtEnd(line)) + { line = merged.find(1, true).line; } + return line +} + +// Returns an array of logical lines that continue the visual line +// started by the argument, or undefined if there are no such lines. +function visualLineContinued(line) { + var merged, lines; + while (merged = collapsedSpanAtEnd(line)) { + line = merged.find(1, true).line + ;(lines || (lines = [])).push(line); + } + return lines +} + +// Get the line number of the start of the visual line that the +// given line number is part of. +function visualLineNo(doc, lineN) { + var line = getLine(doc, lineN), vis = visualLine(line); + if (line == vis) { return lineN } + return lineNo(vis) +} + +// Get the line number of the start of the next visual line after +// the given line. +function visualLineEndNo(doc, lineN) { + if (lineN > doc.lastLine()) { return lineN } + var line = getLine(doc, lineN), merged; + if (!lineIsHidden(doc, line)) { return lineN } + while (merged = collapsedSpanAtEnd(line)) + { line = merged.find(1, true).line; } + return lineNo(line) + 1 +} + +// Compute whether a line is hidden. Lines count as hidden when they +// are part of a visual line that starts with another line, or when +// they are entirely covered by collapsed, non-widget span. +function lineIsHidden(doc, line) { + var sps = sawCollapsedSpans && line.markedSpans; + if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) { + sp = sps[i]; + if (!sp.marker.collapsed) { continue } + if (sp.from == null) { return true } + if (sp.marker.widgetNode) { continue } + if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp)) + { return true } + } } +} +function lineIsHiddenInner(doc, line, span) { + if (span.to == null) { + var end = span.marker.find(1, true); + return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker)) + } + if (span.marker.inclusiveRight && span.to == line.text.length) + { return true } + for (var sp = (void 0), i = 0; i < line.markedSpans.length; ++i) { + sp = line.markedSpans[i]; + if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to && + (sp.to == null || sp.to != span.from) && + (sp.marker.inclusiveLeft || span.marker.inclusiveRight) && + lineIsHiddenInner(doc, line, sp)) { return true } + } +} + +// Find the height above the given line. +function heightAtLine(lineObj) { + lineObj = visualLine(lineObj); + + var h = 0, chunk = lineObj.parent; + for (var i = 0; i < chunk.lines.length; ++i) { + var line = chunk.lines[i]; + if (line == lineObj) { break } + else { h += line.height; } + } + for (var p = chunk.parent; p; chunk = p, p = chunk.parent) { + for (var i$1 = 0; i$1 < p.children.length; ++i$1) { + var cur = p.children[i$1]; + if (cur == chunk) { break } + else { h += cur.height; } + } + } + return h +} + +// Compute the character length of a line, taking into account +// collapsed ranges (see markText) that might hide parts, and join +// other lines onto it. +function lineLength(line) { + if (line.height == 0) { return 0 } + var len = line.text.length, merged, cur = line; + while (merged = collapsedSpanAtStart(cur)) { + var found = merged.find(0, true); + cur = found.from.line; + len += found.from.ch - found.to.ch; + } + cur = line; + while (merged = collapsedSpanAtEnd(cur)) { + var found$1 = merged.find(0, true); + len -= cur.text.length - found$1.from.ch; + cur = found$1.to.line; + len += cur.text.length - found$1.to.ch; + } + return len +} + +// Find the longest line in the document. +function findMaxLine(cm) { + var d = cm.display, doc = cm.doc; + d.maxLine = getLine(doc, doc.first); + d.maxLineLength = lineLength(d.maxLine); + d.maxLineChanged = true; + doc.iter(function (line) { + var len = lineLength(line); + if (len > d.maxLineLength) { + d.maxLineLength = len; + d.maxLine = line; + } + }); +} + +// BIDI HELPERS + +function iterateBidiSections(order, from, to, f) { + if (!order) { return f(from, to, "ltr") } + var found = false; + for (var i = 0; i < order.length; ++i) { + var part = order[i]; + if (part.from < to && part.to > from || from == to && part.to == from) { + f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr"); + found = true; + } + } + if (!found) { f(from, to, "ltr"); } +} + +var bidiOther = null; +function getBidiPartAt(order, ch, sticky) { + var found; + bidiOther = null; + for (var i = 0; i < order.length; ++i) { + var cur = order[i]; + if (cur.from < ch && cur.to > ch) { return i } + if (cur.to == ch) { + if (cur.from != cur.to && sticky == "before") { found = i; } + else { bidiOther = i; } + } + if (cur.from == ch) { + if (cur.from != cur.to && sticky != "before") { found = i; } + else { bidiOther = i; } + } + } + return found != null ? found : bidiOther +} + +// Bidirectional ordering algorithm +// See http://unicode.org/reports/tr9/tr9-13.html for the algorithm +// that this (partially) implements. + +// One-char codes used for character types: +// L (L): Left-to-Right +// R (R): Right-to-Left +// r (AL): Right-to-Left Arabic +// 1 (EN): European Number +// + (ES): European Number Separator +// % (ET): European Number Terminator +// n (AN): Arabic Number +// , (CS): Common Number Separator +// m (NSM): Non-Spacing Mark +// b (BN): Boundary Neutral +// s (B): Paragraph Separator +// t (S): Segment Separator +// w (WS): Whitespace +// N (ON): Other Neutrals + +// Returns null if characters are ordered as they appear +// (left-to-right), or an array of sections ({from, to, level} +// objects) in the order in which they occur visually. +var bidiOrdering = (function() { + // Character types for codepoints 0 to 0xff + var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN"; + // Character types for codepoints 0x600 to 0x6f9 + var arabicTypes = "nnnnnnNNr%%r,rNNmmmmmmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmnNmmmmmmrrmmNmmmmrr1111111111"; + function charType(code) { + if (code <= 0xf7) { return lowTypes.charAt(code) } + else if (0x590 <= code && code <= 0x5f4) { return "R" } + else if (0x600 <= code && code <= 0x6f9) { return arabicTypes.charAt(code - 0x600) } + else if (0x6ee <= code && code <= 0x8ac) { return "r" } + else if (0x2000 <= code && code <= 0x200b) { return "w" } + else if (code == 0x200c) { return "b" } + else { return "L" } + } + + var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/; + var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/; + + function BidiSpan(level, from, to) { + this.level = level; + this.from = from; this.to = to; + } + + return function(str, direction) { + var outerType = direction == "ltr" ? "L" : "R"; + + if (str.length == 0 || direction == "ltr" && !bidiRE.test(str)) { return false } + var len = str.length, types = []; + for (var i = 0; i < len; ++i) + { types.push(charType(str.charCodeAt(i))); } + + // W1. Examine each non-spacing mark (NSM) in the level run, and + // change the type of the NSM to the type of the previous + // character. If the NSM is at the start of the level run, it will + // get the type of sor. + for (var i$1 = 0, prev = outerType; i$1 < len; ++i$1) { + var type = types[i$1]; + if (type == "m") { types[i$1] = prev; } + else { prev = type; } + } + + // W2. Search backwards from each instance of a European number + // until the first strong type (R, L, AL, or sor) is found. If an + // AL is found, change the type of the European number to Arabic + // number. + // W3. Change all ALs to R. + for (var i$2 = 0, cur = outerType; i$2 < len; ++i$2) { + var type$1 = types[i$2]; + if (type$1 == "1" && cur == "r") { types[i$2] = "n"; } + else if (isStrong.test(type$1)) { cur = type$1; if (type$1 == "r") { types[i$2] = "R"; } } + } + + // W4. A single European separator between two European numbers + // changes to a European number. A single common separator between + // two numbers of the same type changes to that type. + for (var i$3 = 1, prev$1 = types[0]; i$3 < len - 1; ++i$3) { + var type$2 = types[i$3]; + if (type$2 == "+" && prev$1 == "1" && types[i$3+1] == "1") { types[i$3] = "1"; } + else if (type$2 == "," && prev$1 == types[i$3+1] && + (prev$1 == "1" || prev$1 == "n")) { types[i$3] = prev$1; } + prev$1 = type$2; + } + + // W5. A sequence of European terminators adjacent to European + // numbers changes to all European numbers. + // W6. Otherwise, separators and terminators change to Other + // Neutral. + for (var i$4 = 0; i$4 < len; ++i$4) { + var type$3 = types[i$4]; + if (type$3 == ",") { types[i$4] = "N"; } + else if (type$3 == "%") { + var end = (void 0); + for (end = i$4 + 1; end < len && types[end] == "%"; ++end) {} + var replace = (i$4 && types[i$4-1] == "!") || (end < len && types[end] == "1") ? "1" : "N"; + for (var j = i$4; j < end; ++j) { types[j] = replace; } + i$4 = end - 1; + } + } + + // W7. Search backwards from each instance of a European number + // until the first strong type (R, L, or sor) is found. If an L is + // found, then change the type of the European number to L. + for (var i$5 = 0, cur$1 = outerType; i$5 < len; ++i$5) { + var type$4 = types[i$5]; + if (cur$1 == "L" && type$4 == "1") { types[i$5] = "L"; } + else if (isStrong.test(type$4)) { cur$1 = type$4; } + } + + // N1. A sequence of neutrals takes the direction of the + // surrounding strong text if the text on both sides has the same + // direction. European and Arabic numbers act as if they were R in + // terms of their influence on neutrals. Start-of-level-run (sor) + // and end-of-level-run (eor) are used at level run boundaries. + // N2. Any remaining neutrals take the embedding direction. + for (var i$6 = 0; i$6 < len; ++i$6) { + if (isNeutral.test(types[i$6])) { + var end$1 = (void 0); + for (end$1 = i$6 + 1; end$1 < len && isNeutral.test(types[end$1]); ++end$1) {} + var before = (i$6 ? types[i$6-1] : outerType) == "L"; + var after = (end$1 < len ? types[end$1] : outerType) == "L"; + var replace$1 = before == after ? (before ? "L" : "R") : outerType; + for (var j$1 = i$6; j$1 < end$1; ++j$1) { types[j$1] = replace$1; } + i$6 = end$1 - 1; + } + } + + // Here we depart from the documented algorithm, in order to avoid + // building up an actual levels array. Since there are only three + // levels (0, 1, 2) in an implementation that doesn't take + // explicit embedding into account, we can build up the order on + // the fly, without following the level-based algorithm. + var order = [], m; + for (var i$7 = 0; i$7 < len;) { + if (countsAsLeft.test(types[i$7])) { + var start = i$7; + for (++i$7; i$7 < len && countsAsLeft.test(types[i$7]); ++i$7) {} + order.push(new BidiSpan(0, start, i$7)); + } else { + var pos = i$7, at = order.length; + for (++i$7; i$7 < len && types[i$7] != "L"; ++i$7) {} + for (var j$2 = pos; j$2 < i$7;) { + if (countsAsNum.test(types[j$2])) { + if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)); } + var nstart = j$2; + for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {} + order.splice(at, 0, new BidiSpan(2, nstart, j$2)); + pos = j$2; + } else { ++j$2; } + } + if (pos < i$7) { order.splice(at, 0, new BidiSpan(1, pos, i$7)); } + } + } + if (order[0].level == 1 && (m = str.match(/^\s+/))) { + order[0].from = m[0].length; + order.unshift(new BidiSpan(0, 0, m[0].length)); + } + if (lst(order).level == 1 && (m = str.match(/\s+$/))) { + lst(order).to -= m[0].length; + order.push(new BidiSpan(0, len - m[0].length, len)); + } + + return direction == "rtl" ? order.reverse() : order + } +})(); + +// Get the bidi ordering for the given line (and cache it). Returns +// false for lines that are fully left-to-right, and an array of +// BidiSpan objects otherwise. +function getOrder(line, direction) { + var order = line.order; + if (order == null) { order = line.order = bidiOrdering(line.text, direction); } + return order +} + +function moveCharLogically(line, ch, dir) { + var target = skipExtendingChars(line.text, ch + dir, dir); + return target < 0 || target > line.text.length ? null : target +} + +function moveLogically(line, start, dir) { + var ch = moveCharLogically(line, start.ch, dir); + return ch == null ? null : new Pos(start.line, ch, dir < 0 ? "after" : "before") +} + +function endOfLine(visually, cm, lineObj, lineNo, dir) { + if (visually) { + var order = getOrder(lineObj, cm.doc.direction); + if (order) { + var part = dir < 0 ? lst(order) : order[0]; + var moveInStorageOrder = (dir < 0) == (part.level == 1); + var sticky = moveInStorageOrder ? "after" : "before"; + var ch; + // With a wrapped rtl chunk (possibly spanning multiple bidi parts), + // it could be that the last bidi part is not on the last visual line, + // since visual lines contain content order-consecutive chunks. + // Thus, in rtl, we are looking for the first (content-order) character + // in the rtl chunk that is on the last line (that is, the same line + // as the last (content-order) character). + if (part.level > 0) { + var prep = prepareMeasureForLine(cm, lineObj); + ch = dir < 0 ? lineObj.text.length - 1 : 0; + var targetTop = measureCharPrepared(cm, prep, ch).top; + ch = findFirst(function (ch) { return measureCharPrepared(cm, prep, ch).top == targetTop; }, (dir < 0) == (part.level == 1) ? part.from : part.to - 1, ch); + if (sticky == "before") { ch = moveCharLogically(lineObj, ch, 1, true); } + } else { ch = dir < 0 ? part.to : part.from; } + return new Pos(lineNo, ch, sticky) + } + } + return new Pos(lineNo, dir < 0 ? lineObj.text.length : 0, dir < 0 ? "before" : "after") +} + +function moveVisually(cm, line, start, dir) { + var bidi = getOrder(line, cm.doc.direction); + if (!bidi) { return moveLogically(line, start, dir) } + if (start.ch >= line.text.length) { + start.ch = line.text.length; + start.sticky = "before"; + } else if (start.ch <= 0) { + start.ch = 0; + start.sticky = "after"; + } + var partPos = getBidiPartAt(bidi, start.ch, start.sticky), part = bidi[partPos]; + if (cm.doc.direction == "ltr" && part.level % 2 == 0 && (dir > 0 ? part.to > start.ch : part.from < start.ch)) { + // Case 1: We move within an ltr part in an ltr editor. Even with wrapped lines, + // nothing interesting happens. + return moveLogically(line, start, dir) + } + + var mv = function (pos, dir) { return moveCharLogically(line, pos instanceof Pos ? pos.ch : pos, dir); }; + var prep; + var getWrappedLineExtent = function (ch) { + if (!cm.options.lineWrapping) { return {begin: 0, end: line.text.length} } + prep = prep || prepareMeasureForLine(cm, line); + return wrappedLineExtentChar(cm, line, prep, ch) + }; + var wrappedLineExtent = getWrappedLineExtent(start.sticky == "before" ? mv(start, -1) : start.ch); + + if (cm.doc.direction == "rtl" || part.level == 1) { + var moveInStorageOrder = (part.level == 1) == (dir < 0); + var ch = mv(start, moveInStorageOrder ? 1 : -1); + if (ch != null && (!moveInStorageOrder ? ch >= part.from && ch >= wrappedLineExtent.begin : ch <= part.to && ch <= wrappedLineExtent.end)) { + // Case 2: We move within an rtl part or in an rtl editor on the same visual line + var sticky = moveInStorageOrder ? "before" : "after"; + return new Pos(start.line, ch, sticky) + } + } + + // Case 3: Could not move within this bidi part in this visual line, so leave + // the current bidi part + + var searchInVisualLine = function (partPos, dir, wrappedLineExtent) { + var getRes = function (ch, moveInStorageOrder) { return moveInStorageOrder + ? new Pos(start.line, mv(ch, 1), "before") + : new Pos(start.line, ch, "after"); }; + + for (; partPos >= 0 && partPos < bidi.length; partPos += dir) { + var part = bidi[partPos]; + var moveInStorageOrder = (dir > 0) == (part.level != 1); + var ch = moveInStorageOrder ? wrappedLineExtent.begin : mv(wrappedLineExtent.end, -1); + if (part.from <= ch && ch < part.to) { return getRes(ch, moveInStorageOrder) } + ch = moveInStorageOrder ? part.from : mv(part.to, -1); + if (wrappedLineExtent.begin <= ch && ch < wrappedLineExtent.end) { return getRes(ch, moveInStorageOrder) } + } + }; + + // Case 3a: Look for other bidi parts on the same visual line + var res = searchInVisualLine(partPos + dir, dir, wrappedLineExtent); + if (res) { return res } + + // Case 3b: Look for other bidi parts on the next visual line + var nextCh = dir > 0 ? wrappedLineExtent.end : mv(wrappedLineExtent.begin, -1); + if (nextCh != null && !(dir > 0 && nextCh == line.text.length)) { + res = searchInVisualLine(dir > 0 ? 0 : bidi.length - 1, dir, getWrappedLineExtent(nextCh)); + if (res) { return res } + } + + // Case 4: Nowhere to move + return null +} + +// EVENT HANDLING + +// Lightweight event framework. on/off also work on DOM nodes, +// registering native DOM handlers. + +var noHandlers = []; + +var on = function(emitter, type, f) { + if (emitter.addEventListener) { + emitter.addEventListener(type, f, false); + } else if (emitter.attachEvent) { + emitter.attachEvent("on" + type, f); + } else { + var map$$1 = emitter._handlers || (emitter._handlers = {}); + map$$1[type] = (map$$1[type] || noHandlers).concat(f); + } +}; + +function getHandlers(emitter, type) { + return emitter._handlers && emitter._handlers[type] || noHandlers +} + +function off(emitter, type, f) { + if (emitter.removeEventListener) { + emitter.removeEventListener(type, f, false); + } else if (emitter.detachEvent) { + emitter.detachEvent("on" + type, f); + } else { + var map$$1 = emitter._handlers, arr = map$$1 && map$$1[type]; + if (arr) { + var index = indexOf(arr, f); + if (index > -1) + { map$$1[type] = arr.slice(0, index).concat(arr.slice(index + 1)); } + } + } +} + +function signal(emitter, type /*, values...*/) { + var handlers = getHandlers(emitter, type); + if (!handlers.length) { return } + var args = Array.prototype.slice.call(arguments, 2); + for (var i = 0; i < handlers.length; ++i) { handlers[i].apply(null, args); } +} + +// The DOM events that CodeMirror handles can be overridden by +// registering a (non-DOM) handler on the editor for the event name, +// and preventDefault-ing the event in that handler. +function signalDOMEvent(cm, e, override) { + if (typeof e == "string") + { e = {type: e, preventDefault: function() { this.defaultPrevented = true; }}; } + signal(cm, override || e.type, cm, e); + return e_defaultPrevented(e) || e.codemirrorIgnore +} + +function signalCursorActivity(cm) { + var arr = cm._handlers && cm._handlers.cursorActivity; + if (!arr) { return } + var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []); + for (var i = 0; i < arr.length; ++i) { if (indexOf(set, arr[i]) == -1) + { set.push(arr[i]); } } +} + +function hasHandler(emitter, type) { + return getHandlers(emitter, type).length > 0 +} + +// Add on and off methods to a constructor's prototype, to make +// registering events on such objects more convenient. +function eventMixin(ctor) { + ctor.prototype.on = function(type, f) {on(this, type, f);}; + ctor.prototype.off = function(type, f) {off(this, type, f);}; +} + +// Due to the fact that we still support jurassic IE versions, some +// compatibility wrappers are needed. + +function e_preventDefault(e) { + if (e.preventDefault) { e.preventDefault(); } + else { e.returnValue = false; } +} +function e_stopPropagation(e) { + if (e.stopPropagation) { e.stopPropagation(); } + else { e.cancelBubble = true; } +} +function e_defaultPrevented(e) { + return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false +} +function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);} + +function e_target(e) {return e.target || e.srcElement} +function e_button(e) { + var b = e.which; + if (b == null) { + if (e.button & 1) { b = 1; } + else if (e.button & 2) { b = 3; } + else if (e.button & 4) { b = 2; } + } + if (mac && e.ctrlKey && b == 1) { b = 3; } + return b +} + +// Detect drag-and-drop +var dragAndDrop = function() { + // There is *some* kind of drag-and-drop support in IE6-8, but I + // couldn't get it to work yet. + if (ie && ie_version < 9) { return false } + var div = elt('div'); + return "draggable" in div || "dragDrop" in div +}(); + +var zwspSupported; +function zeroWidthElement(measure) { + if (zwspSupported == null) { + var test = elt("span", "\u200b"); + removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")])); + if (measure.firstChild.offsetHeight != 0) + { zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8); } + } + var node = zwspSupported ? elt("span", "\u200b") : + elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px"); + node.setAttribute("cm-text", ""); + return node +} + +// Feature-detect IE's crummy client rect reporting for bidi text +var badBidiRects; +function hasBadBidiRects(measure) { + if (badBidiRects != null) { return badBidiRects } + var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA")); + var r0 = range(txt, 0, 1).getBoundingClientRect(); + var r1 = range(txt, 1, 2).getBoundingClientRect(); + removeChildren(measure); + if (!r0 || r0.left == r0.right) { return false } // Safari returns null in some cases (#2780) + return badBidiRects = (r1.right - r0.right < 3) +} + +// See if "".split is the broken IE version, if so, provide an +// alternative way to split lines. +var splitLinesAuto = "\n\nb".split(/\n/).length != 3 ? function (string) { + var pos = 0, result = [], l = string.length; + while (pos <= l) { + var nl = string.indexOf("\n", pos); + if (nl == -1) { nl = string.length; } + var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl); + var rt = line.indexOf("\r"); + if (rt != -1) { + result.push(line.slice(0, rt)); + pos += rt + 1; + } else { + result.push(line); + pos = nl + 1; + } + } + return result +} : function (string) { return string.split(/\r\n?|\n/); }; + +var hasSelection = window.getSelection ? function (te) { + try { return te.selectionStart != te.selectionEnd } + catch(e) { return false } +} : function (te) { + var range$$1; + try {range$$1 = te.ownerDocument.selection.createRange();} + catch(e) {} + if (!range$$1 || range$$1.parentElement() != te) { return false } + return range$$1.compareEndPoints("StartToEnd", range$$1) != 0 +}; + +var hasCopyEvent = (function () { + var e = elt("div"); + if ("oncopy" in e) { return true } + e.setAttribute("oncopy", "return;"); + return typeof e.oncopy == "function" +})(); + +var badZoomedRects = null; +function hasBadZoomedRects(measure) { + if (badZoomedRects != null) { return badZoomedRects } + var node = removeChildrenAndAdd(measure, elt("span", "x")); + var normal = node.getBoundingClientRect(); + var fromRange = range(node, 0, 1).getBoundingClientRect(); + return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1 +} + +// Known modes, by name and by MIME +var modes = {}; +var mimeModes = {}; + +// Extra arguments are stored as the mode's dependencies, which is +// used by (legacy) mechanisms like loadmode.js to automatically +// load a mode. (Preferred mechanism is the require/define calls.) +function defineMode(name, mode) { + if (arguments.length > 2) + { mode.dependencies = Array.prototype.slice.call(arguments, 2); } + modes[name] = mode; +} + +function defineMIME(mime, spec) { + mimeModes[mime] = spec; +} + +// Given a MIME type, a {name, ...options} config object, or a name +// string, return a mode config object. +function resolveMode(spec) { + if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) { + spec = mimeModes[spec]; + } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) { + var found = mimeModes[spec.name]; + if (typeof found == "string") { found = {name: found}; } + spec = createObj(found, spec); + spec.name = found.name; + } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) { + return resolveMode("application/xml") + } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+json$/.test(spec)) { + return resolveMode("application/json") + } + if (typeof spec == "string") { return {name: spec} } + else { return spec || {name: "null"} } +} + +// Given a mode spec (anything that resolveMode accepts), find and +// initialize an actual mode object. +function getMode(options, spec) { + spec = resolveMode(spec); + var mfactory = modes[spec.name]; + if (!mfactory) { return getMode(options, "text/plain") } + var modeObj = mfactory(options, spec); + if (modeExtensions.hasOwnProperty(spec.name)) { + var exts = modeExtensions[spec.name]; + for (var prop in exts) { + if (!exts.hasOwnProperty(prop)) { continue } + if (modeObj.hasOwnProperty(prop)) { modeObj["_" + prop] = modeObj[prop]; } + modeObj[prop] = exts[prop]; + } + } + modeObj.name = spec.name; + if (spec.helperType) { modeObj.helperType = spec.helperType; } + if (spec.modeProps) { for (var prop$1 in spec.modeProps) + { modeObj[prop$1] = spec.modeProps[prop$1]; } } + + return modeObj +} + +// This can be used to attach properties to mode objects from +// outside the actual mode definition. +var modeExtensions = {}; +function extendMode(mode, properties) { + var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {}); + copyObj(properties, exts); +} + +function copyState(mode, state) { + if (state === true) { return state } + if (mode.copyState) { return mode.copyState(state) } + var nstate = {}; + for (var n in state) { + var val = state[n]; + if (val instanceof Array) { val = val.concat([]); } + nstate[n] = val; + } + return nstate +} + +// Given a mode and a state (for that mode), find the inner mode and +// state at the position that the state refers to. +function innerMode(mode, state) { + var info; + while (mode.innerMode) { + info = mode.innerMode(state); + if (!info || info.mode == mode) { break } + state = info.state; + mode = info.mode; + } + return info || {mode: mode, state: state} +} + +function startState(mode, a1, a2) { + return mode.startState ? mode.startState(a1, a2) : true +} + +// STRING STREAM + +// Fed to the mode parsers, provides helper functions to make +// parsers more succinct. + +var StringStream = function(string, tabSize) { + this.pos = this.start = 0; + this.string = string; + this.tabSize = tabSize || 8; + this.lastColumnPos = this.lastColumnValue = 0; + this.lineStart = 0; +}; + +StringStream.prototype.eol = function () {return this.pos >= this.string.length}; +StringStream.prototype.sol = function () {return this.pos == this.lineStart}; +StringStream.prototype.peek = function () {return this.string.charAt(this.pos) || undefined}; +StringStream.prototype.next = function () { + if (this.pos < this.string.length) + { return this.string.charAt(this.pos++) } +}; +StringStream.prototype.eat = function (match) { + var ch = this.string.charAt(this.pos); + var ok; + if (typeof match == "string") { ok = ch == match; } + else { ok = ch && (match.test ? match.test(ch) : match(ch)); } + if (ok) {++this.pos; return ch} +}; +StringStream.prototype.eatWhile = function (match) { + var start = this.pos; + while (this.eat(match)){} + return this.pos > start +}; +StringStream.prototype.eatSpace = function () { + var this$1 = this; + + var start = this.pos; + while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) { ++this$1.pos; } + return this.pos > start +}; +StringStream.prototype.skipToEnd = function () {this.pos = this.string.length;}; +StringStream.prototype.skipTo = function (ch) { + var found = this.string.indexOf(ch, this.pos); + if (found > -1) {this.pos = found; return true} +}; +StringStream.prototype.backUp = function (n) {this.pos -= n;}; +StringStream.prototype.column = function () { + if (this.lastColumnPos < this.start) { + this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue); + this.lastColumnPos = this.start; + } + return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0) +}; +StringStream.prototype.indentation = function () { + return countColumn(this.string, null, this.tabSize) - + (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0) +}; +StringStream.prototype.match = function (pattern, consume, caseInsensitive) { + if (typeof pattern == "string") { + var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; }; + var substr = this.string.substr(this.pos, pattern.length); + if (cased(substr) == cased(pattern)) { + if (consume !== false) { this.pos += pattern.length; } + return true + } + } else { + var match = this.string.slice(this.pos).match(pattern); + if (match && match.index > 0) { return null } + if (match && consume !== false) { this.pos += match[0].length; } + return match + } +}; +StringStream.prototype.current = function (){return this.string.slice(this.start, this.pos)}; +StringStream.prototype.hideFirstChars = function (n, inner) { + this.lineStart += n; + try { return inner() } + finally { this.lineStart -= n; } +}; + +// Compute a style array (an array starting with a mode generation +// -- for invalidation -- followed by pairs of end positions and +// style strings), which is used to highlight the tokens on the +// line. +function highlightLine(cm, line, state, forceToEnd) { + // A styles array always starts with a number identifying the + // mode/overlays that it is based on (for easy invalidation). + var st = [cm.state.modeGen], lineClasses = {}; + // Compute the base array of styles + runMode(cm, line.text, cm.doc.mode, state, function (end, style) { return st.push(end, style); }, + lineClasses, forceToEnd); + + // Run overlays, adjust style array. + var loop = function ( o ) { + var overlay = cm.state.overlays[o], i = 1, at = 0; + runMode(cm, line.text, overlay.mode, true, function (end, style) { + var start = i; + // Ensure there's a token end at the current position, and that i points at it + while (at < end) { + var i_end = st[i]; + if (i_end > end) + { st.splice(i, 1, end, st[i+1], i_end); } + i += 2; + at = Math.min(end, i_end); + } + if (!style) { return } + if (overlay.opaque) { + st.splice(start, i - start, end, "overlay " + style); + i = start + 2; + } else { + for (; start < i; start += 2) { + var cur = st[start+1]; + st[start+1] = (cur ? cur + " " : "") + "overlay " + style; + } + } + }, lineClasses); + }; + + for (var o = 0; o < cm.state.overlays.length; ++o) loop( o ); + + return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null} +} + +function getLineStyles(cm, line, updateFrontier) { + if (!line.styles || line.styles[0] != cm.state.modeGen) { + var state = getStateBefore(cm, lineNo(line)); + var result = highlightLine(cm, line, line.text.length > cm.options.maxHighlightLength ? copyState(cm.doc.mode, state) : state); + line.stateAfter = state; + line.styles = result.styles; + if (result.classes) { line.styleClasses = result.classes; } + else if (line.styleClasses) { line.styleClasses = null; } + if (updateFrontier === cm.doc.frontier) { cm.doc.frontier++; } + } + return line.styles +} + +function getStateBefore(cm, n, precise) { + var doc = cm.doc, display = cm.display; + if (!doc.mode.startState) { return true } + var pos = findStartLine(cm, n, precise), state = pos > doc.first && getLine(doc, pos-1).stateAfter; + if (!state) { state = startState(doc.mode); } + else { state = copyState(doc.mode, state); } + doc.iter(pos, n, function (line) { + processLine(cm, line.text, state); + var save = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo; + line.stateAfter = save ? copyState(doc.mode, state) : null; + ++pos; + }); + if (precise) { doc.frontier = pos; } + return state +} + +// Lightweight form of highlight -- proceed over this line and +// update state, but don't save a style array. Used for lines that +// aren't currently visible. +function processLine(cm, text, state, startAt) { + var mode = cm.doc.mode; + var stream = new StringStream(text, cm.options.tabSize); + stream.start = stream.pos = startAt || 0; + if (text == "") { callBlankLine(mode, state); } + while (!stream.eol()) { + readToken(mode, stream, state); + stream.start = stream.pos; + } +} + +function callBlankLine(mode, state) { + if (mode.blankLine) { return mode.blankLine(state) } + if (!mode.innerMode) { return } + var inner = innerMode(mode, state); + if (inner.mode.blankLine) { return inner.mode.blankLine(inner.state) } +} + +function readToken(mode, stream, state, inner) { + for (var i = 0; i < 10; i++) { + if (inner) { inner[0] = innerMode(mode, state).mode; } + var style = mode.token(stream, state); + if (stream.pos > stream.start) { return style } + } + throw new Error("Mode " + mode.name + " failed to advance stream.") +} + +// Utility for getTokenAt and getLineTokens +function takeToken(cm, pos, precise, asArray) { + var getObj = function (copy) { return ({ + start: stream.start, end: stream.pos, + string: stream.current(), + type: style || null, + state: copy ? copyState(doc.mode, state) : state + }); }; + + var doc = cm.doc, mode = doc.mode, style; + pos = clipPos(doc, pos); + var line = getLine(doc, pos.line), state = getStateBefore(cm, pos.line, precise); + var stream = new StringStream(line.text, cm.options.tabSize), tokens; + if (asArray) { tokens = []; } + while ((asArray || stream.pos < pos.ch) && !stream.eol()) { + stream.start = stream.pos; + style = readToken(mode, stream, state); + if (asArray) { tokens.push(getObj(true)); } + } + return asArray ? tokens : getObj() +} + +function extractLineClasses(type, output) { + if (type) { for (;;) { + var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/); + if (!lineClass) { break } + type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length); + var prop = lineClass[1] ? "bgClass" : "textClass"; + if (output[prop] == null) + { output[prop] = lineClass[2]; } + else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(output[prop])) + { output[prop] += " " + lineClass[2]; } + } } + return type +} + +// Run the given mode's parser over a line, calling f for each token. +function runMode(cm, text, mode, state, f, lineClasses, forceToEnd) { + var flattenSpans = mode.flattenSpans; + if (flattenSpans == null) { flattenSpans = cm.options.flattenSpans; } + var curStart = 0, curStyle = null; + var stream = new StringStream(text, cm.options.tabSize), style; + var inner = cm.options.addModeClass && [null]; + if (text == "") { extractLineClasses(callBlankLine(mode, state), lineClasses); } + while (!stream.eol()) { + if (stream.pos > cm.options.maxHighlightLength) { + flattenSpans = false; + if (forceToEnd) { processLine(cm, text, state, stream.pos); } + stream.pos = text.length; + style = null; + } else { + style = extractLineClasses(readToken(mode, stream, state, inner), lineClasses); + } + if (inner) { + var mName = inner[0].name; + if (mName) { style = "m-" + (style ? mName + " " + style : mName); } + } + if (!flattenSpans || curStyle != style) { + while (curStart < stream.start) { + curStart = Math.min(stream.start, curStart + 5000); + f(curStart, curStyle); + } + curStyle = style; + } + stream.start = stream.pos; + } + while (curStart < stream.pos) { + // Webkit seems to refuse to render text nodes longer than 57444 + // characters, and returns inaccurate measurements in nodes + // starting around 5000 chars. + var pos = Math.min(stream.pos, curStart + 5000); + f(pos, curStyle); + curStart = pos; + } +} + +// Finds the line to start with when starting a parse. Tries to +// find a line with a stateAfter, so that it can start with a +// valid state. If that fails, it returns the line with the +// smallest indentation, which tends to need the least context to +// parse correctly. +function findStartLine(cm, n, precise) { + var minindent, minline, doc = cm.doc; + var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100); + for (var search = n; search > lim; --search) { + if (search <= doc.first) { return doc.first } + var line = getLine(doc, search - 1); + if (line.stateAfter && (!precise || search <= doc.frontier)) { return search } + var indented = countColumn(line.text, null, cm.options.tabSize); + if (minline == null || minindent > indented) { + minline = search - 1; + minindent = indented; + } + } + return minline +} + +// LINE DATA STRUCTURE + +// Line objects. These hold state related to a line, including +// highlighting info (the styles array). +var Line = function(text, markedSpans, estimateHeight) { + this.text = text; + attachMarkedSpans(this, markedSpans); + this.height = estimateHeight ? estimateHeight(this) : 1; +}; + +Line.prototype.lineNo = function () { return lineNo(this) }; +eventMixin(Line); + +// Change the content (text, markers) of a line. Automatically +// invalidates cached information and tries to re-estimate the +// line's height. +function updateLine(line, text, markedSpans, estimateHeight) { + line.text = text; + if (line.stateAfter) { line.stateAfter = null; } + if (line.styles) { line.styles = null; } + if (line.order != null) { line.order = null; } + detachMarkedSpans(line); + attachMarkedSpans(line, markedSpans); + var estHeight = estimateHeight ? estimateHeight(line) : 1; + if (estHeight != line.height) { updateLineHeight(line, estHeight); } +} + +// Detach a line from the document tree and its markers. +function cleanUpLine(line) { + line.parent = null; + detachMarkedSpans(line); +} + +// Convert a style as returned by a mode (either null, or a string +// containing one or more styles) to a CSS style. This is cached, +// and also looks for line-wide styles. +var styleToClassCache = {}; +var styleToClassCacheWithMode = {}; +function interpretTokenStyle(style, options) { + if (!style || /^\s*$/.test(style)) { return null } + var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache; + return cache[style] || + (cache[style] = style.replace(/\S+/g, "cm-$&")) +} + +// Render the DOM representation of the text of a line. Also builds +// up a 'line map', which points at the DOM nodes that represent +// specific stretches of text, and is used by the measuring code. +// The returned object contains the DOM node, this map, and +// information about line-wide styles that were set by the mode. +function buildLineContent(cm, lineView) { + // The padding-right forces the element to have a 'border', which + // is needed on Webkit to be able to get line-level bounding + // rectangles for it (in measureChar). + var content = eltP("span", null, null, webkit ? "padding-right: .1px" : null); + var builder = {pre: eltP("pre", [content], "CodeMirror-line"), content: content, + col: 0, pos: 0, cm: cm, + trailingSpace: false, + splitSpaces: (ie || webkit) && cm.getOption("lineWrapping")}; + lineView.measure = {}; + + // Iterate over the logical lines that make up this visual line. + for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) { + var line = i ? lineView.rest[i - 1] : lineView.line, order = (void 0); + builder.pos = 0; + builder.addToken = buildToken; + // Optionally wire in some hacks into the token-rendering + // algorithm, to deal with browser quirks. + if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line, cm.doc.direction))) + { builder.addToken = buildTokenBadBidi(builder.addToken, order); } + builder.map = []; + var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line); + insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate)); + if (line.styleClasses) { + if (line.styleClasses.bgClass) + { builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || ""); } + if (line.styleClasses.textClass) + { builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || ""); } + } + + // Ensure at least a single node is present, for measuring. + if (builder.map.length == 0) + { builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))); } + + // Store the map and a cache object for the current logical line + if (i == 0) { + lineView.measure.map = builder.map; + lineView.measure.cache = {}; + } else { + (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map) + ;(lineView.measure.caches || (lineView.measure.caches = [])).push({}); + } + } + + // See issue #2901 + if (webkit) { + var last = builder.content.lastChild; + if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab"))) + { builder.content.className = "cm-tab-wrap-hack"; } + } + + signal(cm, "renderLine", cm, lineView.line, builder.pre); + if (builder.pre.className) + { builder.textClass = joinClasses(builder.pre.className, builder.textClass || ""); } + + return builder +} + +function defaultSpecialCharPlaceholder(ch) { + var token = elt("span", "\u2022", "cm-invalidchar"); + token.title = "\\u" + ch.charCodeAt(0).toString(16); + token.setAttribute("aria-label", token.title); + return token +} + +// Build up the DOM representation for a single token, and add it to +// the line map. Takes care to render special characters separately. +function buildToken(builder, text, style, startStyle, endStyle, title, css) { + if (!text) { return } + var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text; + var special = builder.cm.state.specialChars, mustWrap = false; + var content; + if (!special.test(text)) { + builder.col += text.length; + content = document.createTextNode(displayText); + builder.map.push(builder.pos, builder.pos + text.length, content); + if (ie && ie_version < 9) { mustWrap = true; } + builder.pos += text.length; + } else { + content = document.createDocumentFragment(); + var pos = 0; + while (true) { + special.lastIndex = pos; + var m = special.exec(text); + var skipped = m ? m.index - pos : text.length - pos; + if (skipped) { + var txt = document.createTextNode(displayText.slice(pos, pos + skipped)); + if (ie && ie_version < 9) { content.appendChild(elt("span", [txt])); } + else { content.appendChild(txt); } + builder.map.push(builder.pos, builder.pos + skipped, txt); + builder.col += skipped; + builder.pos += skipped; + } + if (!m) { break } + pos += skipped + 1; + var txt$1 = (void 0); + if (m[0] == "\t") { + var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize; + txt$1 = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab")); + txt$1.setAttribute("role", "presentation"); + txt$1.setAttribute("cm-text", "\t"); + builder.col += tabWidth; + } else if (m[0] == "\r" || m[0] == "\n") { + txt$1 = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar")); + txt$1.setAttribute("cm-text", m[0]); + builder.col += 1; + } else { + txt$1 = builder.cm.options.specialCharPlaceholder(m[0]); + txt$1.setAttribute("cm-text", m[0]); + if (ie && ie_version < 9) { content.appendChild(elt("span", [txt$1])); } + else { content.appendChild(txt$1); } + builder.col += 1; + } + builder.map.push(builder.pos, builder.pos + 1, txt$1); + builder.pos++; + } + } + builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32; + if (style || startStyle || endStyle || mustWrap || css) { + var fullStyle = style || ""; + if (startStyle) { fullStyle += startStyle; } + if (endStyle) { fullStyle += endStyle; } + var token = elt("span", [content], fullStyle, css); + if (title) { token.title = title; } + return builder.content.appendChild(token) + } + builder.content.appendChild(content); +} + +function splitSpaces(text, trailingBefore) { + if (text.length > 1 && !/ /.test(text)) { return text } + var spaceBefore = trailingBefore, result = ""; + for (var i = 0; i < text.length; i++) { + var ch = text.charAt(i); + if (ch == " " && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32)) + { ch = "\u00a0"; } + result += ch; + spaceBefore = ch == " "; + } + return result +} + +// Work around nonsense dimensions being reported for stretches of +// right-to-left text. +function buildTokenBadBidi(inner, order) { + return function (builder, text, style, startStyle, endStyle, title, css) { + style = style ? style + " cm-force-border" : "cm-force-border"; + var start = builder.pos, end = start + text.length; + for (;;) { + // Find the part that overlaps with the start of this text + var part = (void 0); + for (var i = 0; i < order.length; i++) { + part = order[i]; + if (part.to > start && part.from <= start) { break } + } + if (part.to >= end) { return inner(builder, text, style, startStyle, endStyle, title, css) } + inner(builder, text.slice(0, part.to - start), style, startStyle, null, title, css); + startStyle = null; + text = text.slice(part.to - start); + start = part.to; + } + } +} + +function buildCollapsedSpan(builder, size, marker, ignoreWidget) { + var widget = !ignoreWidget && marker.widgetNode; + if (widget) { builder.map.push(builder.pos, builder.pos + size, widget); } + if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) { + if (!widget) + { widget = builder.content.appendChild(document.createElement("span")); } + widget.setAttribute("cm-marker", marker.id); + } + if (widget) { + builder.cm.display.input.setUneditable(widget); + builder.content.appendChild(widget); + } + builder.pos += size; + builder.trailingSpace = false; +} + +// Outputs a number of spans to make up a line, taking highlighting +// and marked text into account. +function insertLineContent(line, builder, styles) { + var spans = line.markedSpans, allText = line.text, at = 0; + if (!spans) { + for (var i$1 = 1; i$1 < styles.length; i$1+=2) + { builder.addToken(builder, allText.slice(at, at = styles[i$1]), interpretTokenStyle(styles[i$1+1], builder.cm.options)); } + return + } + + var len = allText.length, pos = 0, i = 1, text = "", style, css; + var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, title, collapsed; + for (;;) { + if (nextChange == pos) { // Update current marker set + spanStyle = spanEndStyle = spanStartStyle = title = css = ""; + collapsed = null; nextChange = Infinity; + var foundBookmarks = [], endStyles = (void 0); + for (var j = 0; j < spans.length; ++j) { + var sp = spans[j], m = sp.marker; + if (m.type == "bookmark" && sp.from == pos && m.widgetNode) { + foundBookmarks.push(m); + } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) { + if (sp.to != null && sp.to != pos && nextChange > sp.to) { + nextChange = sp.to; + spanEndStyle = ""; + } + if (m.className) { spanStyle += " " + m.className; } + if (m.css) { css = (css ? css + ";" : "") + m.css; } + if (m.startStyle && sp.from == pos) { spanStartStyle += " " + m.startStyle; } + if (m.endStyle && sp.to == nextChange) { (endStyles || (endStyles = [])).push(m.endStyle, sp.to); } + if (m.title && !title) { title = m.title; } + if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0)) + { collapsed = sp; } + } else if (sp.from > pos && nextChange > sp.from) { + nextChange = sp.from; + } + } + if (endStyles) { for (var j$1 = 0; j$1 < endStyles.length; j$1 += 2) + { if (endStyles[j$1 + 1] == nextChange) { spanEndStyle += " " + endStyles[j$1]; } } } + + if (!collapsed || collapsed.from == pos) { for (var j$2 = 0; j$2 < foundBookmarks.length; ++j$2) + { buildCollapsedSpan(builder, 0, foundBookmarks[j$2]); } } + if (collapsed && (collapsed.from || 0) == pos) { + buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos, + collapsed.marker, collapsed.from == null); + if (collapsed.to == null) { return } + if (collapsed.to == pos) { collapsed = false; } + } + } + if (pos >= len) { break } + + var upto = Math.min(len, nextChange); + while (true) { + if (text) { + var end = pos + text.length; + if (!collapsed) { + var tokenText = end > upto ? text.slice(0, upto - pos) : text; + builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle, + spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", title, css); + } + if (end >= upto) {text = text.slice(upto - pos); pos = upto; break} + pos = end; + spanStartStyle = ""; + } + text = allText.slice(at, at = styles[i++]); + style = interpretTokenStyle(styles[i++], builder.cm.options); + } + } +} + + +// These objects are used to represent the visible (currently drawn) +// part of the document. A LineView may correspond to multiple +// logical lines, if those are connected by collapsed ranges. +function LineView(doc, line, lineN) { + // The starting line + this.line = line; + // Continuing lines, if any + this.rest = visualLineContinued(line); + // Number of logical lines in this visual line + this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1; + this.node = this.text = null; + this.hidden = lineIsHidden(doc, line); +} + +// Create a range of LineView objects for the given lines. +function buildViewArray(cm, from, to) { + var array = [], nextPos; + for (var pos = from; pos < to; pos = nextPos) { + var view = new LineView(cm.doc, getLine(cm.doc, pos), pos); + nextPos = pos + view.size; + array.push(view); + } + return array +} + +var operationGroup = null; + +function pushOperation(op) { + if (operationGroup) { + operationGroup.ops.push(op); + } else { + op.ownsGroup = operationGroup = { + ops: [op], + delayedCallbacks: [] + }; + } +} + +function fireCallbacksForOps(group) { + // Calls delayed callbacks and cursorActivity handlers until no + // new ones appear + var callbacks = group.delayedCallbacks, i = 0; + do { + for (; i < callbacks.length; i++) + { callbacks[i].call(null); } + for (var j = 0; j < group.ops.length; j++) { + var op = group.ops[j]; + if (op.cursorActivityHandlers) + { while (op.cursorActivityCalled < op.cursorActivityHandlers.length) + { op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm); } } + } + } while (i < callbacks.length) +} + +function finishOperation(op, endCb) { + var group = op.ownsGroup; + if (!group) { return } + + try { fireCallbacksForOps(group); } + finally { + operationGroup = null; + endCb(group); + } +} + +var orphanDelayedCallbacks = null; + +// Often, we want to signal events at a point where we are in the +// middle of some work, but don't want the handler to start calling +// other methods on the editor, which might be in an inconsistent +// state or simply not expect any other events to happen. +// signalLater looks whether there are any handlers, and schedules +// them to be executed when the last operation ends, or, if no +// operation is active, when a timeout fires. +function signalLater(emitter, type /*, values...*/) { + var arr = getHandlers(emitter, type); + if (!arr.length) { return } + var args = Array.prototype.slice.call(arguments, 2), list; + if (operationGroup) { + list = operationGroup.delayedCallbacks; + } else if (orphanDelayedCallbacks) { + list = orphanDelayedCallbacks; + } else { + list = orphanDelayedCallbacks = []; + setTimeout(fireOrphanDelayed, 0); + } + var loop = function ( i ) { + list.push(function () { return arr[i].apply(null, args); }); + }; + + for (var i = 0; i < arr.length; ++i) + loop( i ); +} + +function fireOrphanDelayed() { + var delayed = orphanDelayedCallbacks; + orphanDelayedCallbacks = null; + for (var i = 0; i < delayed.length; ++i) { delayed[i](); } +} + +// When an aspect of a line changes, a string is added to +// lineView.changes. This updates the relevant part of the line's +// DOM structure. +function updateLineForChanges(cm, lineView, lineN, dims) { + for (var j = 0; j < lineView.changes.length; j++) { + var type = lineView.changes[j]; + if (type == "text") { updateLineText(cm, lineView); } + else if (type == "gutter") { updateLineGutter(cm, lineView, lineN, dims); } + else if (type == "class") { updateLineClasses(cm, lineView); } + else if (type == "widget") { updateLineWidgets(cm, lineView, dims); } + } + lineView.changes = null; +} + +// Lines with gutter elements, widgets or a background class need to +// be wrapped, and have the extra elements added to the wrapper div +function ensureLineWrapped(lineView) { + if (lineView.node == lineView.text) { + lineView.node = elt("div", null, null, "position: relative"); + if (lineView.text.parentNode) + { lineView.text.parentNode.replaceChild(lineView.node, lineView.text); } + lineView.node.appendChild(lineView.text); + if (ie && ie_version < 8) { lineView.node.style.zIndex = 2; } + } + return lineView.node +} + +function updateLineBackground(cm, lineView) { + var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass; + if (cls) { cls += " CodeMirror-linebackground"; } + if (lineView.background) { + if (cls) { lineView.background.className = cls; } + else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; } + } else if (cls) { + var wrap = ensureLineWrapped(lineView); + lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild); + cm.display.input.setUneditable(lineView.background); + } +} + +// Wrapper around buildLineContent which will reuse the structure +// in display.externalMeasured when possible. +function getLineContent(cm, lineView) { + var ext = cm.display.externalMeasured; + if (ext && ext.line == lineView.line) { + cm.display.externalMeasured = null; + lineView.measure = ext.measure; + return ext.built + } + return buildLineContent(cm, lineView) +} + +// Redraw the line's text. Interacts with the background and text +// classes because the mode may output tokens that influence these +// classes. +function updateLineText(cm, lineView) { + var cls = lineView.text.className; + var built = getLineContent(cm, lineView); + if (lineView.text == lineView.node) { lineView.node = built.pre; } + lineView.text.parentNode.replaceChild(built.pre, lineView.text); + lineView.text = built.pre; + if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) { + lineView.bgClass = built.bgClass; + lineView.textClass = built.textClass; + updateLineClasses(cm, lineView); + } else if (cls) { + lineView.text.className = cls; + } +} + +function updateLineClasses(cm, lineView) { + updateLineBackground(cm, lineView); + if (lineView.line.wrapClass) + { ensureLineWrapped(lineView).className = lineView.line.wrapClass; } + else if (lineView.node != lineView.text) + { lineView.node.className = ""; } + var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass; + lineView.text.className = textClass || ""; +} + +function updateLineGutter(cm, lineView, lineN, dims) { + if (lineView.gutter) { + lineView.node.removeChild(lineView.gutter); + lineView.gutter = null; + } + if (lineView.gutterBackground) { + lineView.node.removeChild(lineView.gutterBackground); + lineView.gutterBackground = null; + } + if (lineView.line.gutterClass) { + var wrap = ensureLineWrapped(lineView); + lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass, + ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px; width: " + (dims.gutterTotalWidth) + "px")); + cm.display.input.setUneditable(lineView.gutterBackground); + wrap.insertBefore(lineView.gutterBackground, lineView.text); + } + var markers = lineView.line.gutterMarkers; + if (cm.options.lineNumbers || markers) { + var wrap$1 = ensureLineWrapped(lineView); + var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px")); + cm.display.input.setUneditable(gutterWrap); + wrap$1.insertBefore(gutterWrap, lineView.text); + if (lineView.line.gutterClass) + { gutterWrap.className += " " + lineView.line.gutterClass; } + if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"])) + { lineView.lineNumber = gutterWrap.appendChild( + elt("div", lineNumberFor(cm.options, lineN), + "CodeMirror-linenumber CodeMirror-gutter-elt", + ("left: " + (dims.gutterLeft["CodeMirror-linenumbers"]) + "px; width: " + (cm.display.lineNumInnerWidth) + "px"))); } + if (markers) { for (var k = 0; k < cm.options.gutters.length; ++k) { + var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id]; + if (found) + { gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt", + ("left: " + (dims.gutterLeft[id]) + "px; width: " + (dims.gutterWidth[id]) + "px"))); } + } } + } +} + +function updateLineWidgets(cm, lineView, dims) { + if (lineView.alignable) { lineView.alignable = null; } + for (var node = lineView.node.firstChild, next = (void 0); node; node = next) { + next = node.nextSibling; + if (node.className == "CodeMirror-linewidget") + { lineView.node.removeChild(node); } + } + insertLineWidgets(cm, lineView, dims); +} + +// Build a line's DOM representation from scratch +function buildLineElement(cm, lineView, lineN, dims) { + var built = getLineContent(cm, lineView); + lineView.text = lineView.node = built.pre; + if (built.bgClass) { lineView.bgClass = built.bgClass; } + if (built.textClass) { lineView.textClass = built.textClass; } + + updateLineClasses(cm, lineView); + updateLineGutter(cm, lineView, lineN, dims); + insertLineWidgets(cm, lineView, dims); + return lineView.node +} + +// A lineView may contain multiple logical lines (when merged by +// collapsed spans). The widgets for all of them need to be drawn. +function insertLineWidgets(cm, lineView, dims) { + insertLineWidgetsFor(cm, lineView.line, lineView, dims, true); + if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++) + { insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false); } } +} + +function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) { + if (!line.widgets) { return } + var wrap = ensureLineWrapped(lineView); + for (var i = 0, ws = line.widgets; i < ws.length; ++i) { + var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget"); + if (!widget.handleMouseEvents) { node.setAttribute("cm-ignore-events", "true"); } + positionLineWidget(widget, node, lineView, dims); + cm.display.input.setUneditable(node); + if (allowAbove && widget.above) + { wrap.insertBefore(node, lineView.gutter || lineView.text); } + else + { wrap.appendChild(node); } + signalLater(widget, "redraw"); + } +} + +function positionLineWidget(widget, node, lineView, dims) { + if (widget.noHScroll) { + (lineView.alignable || (lineView.alignable = [])).push(node); + var width = dims.wrapperWidth; + node.style.left = dims.fixedPos + "px"; + if (!widget.coverGutter) { + width -= dims.gutterTotalWidth; + node.style.paddingLeft = dims.gutterTotalWidth + "px"; + } + node.style.width = width + "px"; + } + if (widget.coverGutter) { + node.style.zIndex = 5; + node.style.position = "relative"; + if (!widget.noHScroll) { node.style.marginLeft = -dims.gutterTotalWidth + "px"; } + } +} + +function widgetHeight(widget) { + if (widget.height != null) { return widget.height } + var cm = widget.doc.cm; + if (!cm) { return 0 } + if (!contains(document.body, widget.node)) { + var parentStyle = "position: relative;"; + if (widget.coverGutter) + { parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;"; } + if (widget.noHScroll) + { parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;"; } + removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle)); + } + return widget.height = widget.node.parentNode.offsetHeight +} + +// Return true when the given mouse event happened in a widget +function eventInWidget(display, e) { + for (var n = e_target(e); n != display.wrapper; n = n.parentNode) { + if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") || + (n.parentNode == display.sizer && n != display.mover)) + { return true } + } +} + +// POSITION MEASUREMENT + +function paddingTop(display) {return display.lineSpace.offsetTop} +function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight} +function paddingH(display) { + if (display.cachedPaddingH) { return display.cachedPaddingH } + var e = removeChildrenAndAdd(display.measure, elt("pre", "x")); + var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle; + var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)}; + if (!isNaN(data.left) && !isNaN(data.right)) { display.cachedPaddingH = data; } + return data +} + +function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth } +function displayWidth(cm) { + return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth +} +function displayHeight(cm) { + return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight +} + +// Ensure the lineView.wrapping.heights array is populated. This is +// an array of bottom offsets for the lines that make up a drawn +// line. When lineWrapping is on, there might be more than one +// height. +function ensureLineHeights(cm, lineView, rect) { + var wrapping = cm.options.lineWrapping; + var curWidth = wrapping && displayWidth(cm); + if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) { + var heights = lineView.measure.heights = []; + if (wrapping) { + lineView.measure.width = curWidth; + var rects = lineView.text.firstChild.getClientRects(); + for (var i = 0; i < rects.length - 1; i++) { + var cur = rects[i], next = rects[i + 1]; + if (Math.abs(cur.bottom - next.bottom) > 2) + { heights.push((cur.bottom + next.top) / 2 - rect.top); } + } + } + heights.push(rect.bottom - rect.top); + } +} + +// Find a line map (mapping character offsets to text nodes) and a +// measurement cache for the given line number. (A line view might +// contain multiple lines when collapsed ranges are present.) +function mapFromLineView(lineView, line, lineN) { + if (lineView.line == line) + { return {map: lineView.measure.map, cache: lineView.measure.cache} } + for (var i = 0; i < lineView.rest.length; i++) + { if (lineView.rest[i] == line) + { return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]} } } + for (var i$1 = 0; i$1 < lineView.rest.length; i$1++) + { if (lineNo(lineView.rest[i$1]) > lineN) + { return {map: lineView.measure.maps[i$1], cache: lineView.measure.caches[i$1], before: true} } } +} + +// Render a line into the hidden node display.externalMeasured. Used +// when measurement is needed for a line that's not in the viewport. +function updateExternalMeasurement(cm, line) { + line = visualLine(line); + var lineN = lineNo(line); + var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN); + view.lineN = lineN; + var built = view.built = buildLineContent(cm, view); + view.text = built.pre; + removeChildrenAndAdd(cm.display.lineMeasure, built.pre); + return view +} + +// Get a {top, bottom, left, right} box (in line-local coordinates) +// for a given character. +function measureChar(cm, line, ch, bias) { + return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias) +} + +// Find a line view that corresponds to the given line number. +function findViewForLine(cm, lineN) { + if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo) + { return cm.display.view[findViewIndex(cm, lineN)] } + var ext = cm.display.externalMeasured; + if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size) + { return ext } +} + +// Measurement can be split in two steps, the set-up work that +// applies to the whole line, and the measurement of the actual +// character. Functions like coordsChar, that need to do a lot of +// measurements in a row, can thus ensure that the set-up work is +// only done once. +function prepareMeasureForLine(cm, line) { + var lineN = lineNo(line); + var view = findViewForLine(cm, lineN); + if (view && !view.text) { + view = null; + } else if (view && view.changes) { + updateLineForChanges(cm, view, lineN, getDimensions(cm)); + cm.curOp.forceUpdate = true; + } + if (!view) + { view = updateExternalMeasurement(cm, line); } + + var info = mapFromLineView(view, line, lineN); + return { + line: line, view: view, rect: null, + map: info.map, cache: info.cache, before: info.before, + hasHeights: false + } +} + +// Given a prepared measurement object, measures the position of an +// actual character (or fetches it from the cache). +function measureCharPrepared(cm, prepared, ch, bias, varHeight) { + if (prepared.before) { ch = -1; } + var key = ch + (bias || ""), found; + if (prepared.cache.hasOwnProperty(key)) { + found = prepared.cache[key]; + } else { + if (!prepared.rect) + { prepared.rect = prepared.view.text.getBoundingClientRect(); } + if (!prepared.hasHeights) { + ensureLineHeights(cm, prepared.view, prepared.rect); + prepared.hasHeights = true; + } + found = measureCharInner(cm, prepared, ch, bias); + if (!found.bogus) { prepared.cache[key] = found; } + } + return {left: found.left, right: found.right, + top: varHeight ? found.rtop : found.top, + bottom: varHeight ? found.rbottom : found.bottom} +} + +var nullRect = {left: 0, right: 0, top: 0, bottom: 0}; + +function nodeAndOffsetInLineMap(map$$1, ch, bias) { + var node, start, end, collapse, mStart, mEnd; + // First, search the line map for the text node corresponding to, + // or closest to, the target character. + for (var i = 0; i < map$$1.length; i += 3) { + mStart = map$$1[i]; + mEnd = map$$1[i + 1]; + if (ch < mStart) { + start = 0; end = 1; + collapse = "left"; + } else if (ch < mEnd) { + start = ch - mStart; + end = start + 1; + } else if (i == map$$1.length - 3 || ch == mEnd && map$$1[i + 3] > ch) { + end = mEnd - mStart; + start = end - 1; + if (ch >= mEnd) { collapse = "right"; } + } + if (start != null) { + node = map$$1[i + 2]; + if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right")) + { collapse = bias; } + if (bias == "left" && start == 0) + { while (i && map$$1[i - 2] == map$$1[i - 3] && map$$1[i - 1].insertLeft) { + node = map$$1[(i -= 3) + 2]; + collapse = "left"; + } } + if (bias == "right" && start == mEnd - mStart) + { while (i < map$$1.length - 3 && map$$1[i + 3] == map$$1[i + 4] && !map$$1[i + 5].insertLeft) { + node = map$$1[(i += 3) + 2]; + collapse = "right"; + } } + break + } + } + return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd} +} + +function getUsefulRect(rects, bias) { + var rect = nullRect; + if (bias == "left") { for (var i = 0; i < rects.length; i++) { + if ((rect = rects[i]).left != rect.right) { break } + } } else { for (var i$1 = rects.length - 1; i$1 >= 0; i$1--) { + if ((rect = rects[i$1]).left != rect.right) { break } + } } + return rect +} + +function measureCharInner(cm, prepared, ch, bias) { + var place = nodeAndOffsetInLineMap(prepared.map, ch, bias); + var node = place.node, start = place.start, end = place.end, collapse = place.collapse; + + var rect; + if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates. + for (var i$1 = 0; i$1 < 4; i$1++) { // Retry a maximum of 4 times when nonsense rectangles are returned + while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) { --start; } + while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) { ++end; } + if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart) + { rect = node.parentNode.getBoundingClientRect(); } + else + { rect = getUsefulRect(range(node, start, end).getClientRects(), bias); } + if (rect.left || rect.right || start == 0) { break } + end = start; + start = start - 1; + collapse = "right"; + } + if (ie && ie_version < 11) { rect = maybeUpdateRectForZooming(cm.display.measure, rect); } + } else { // If it is a widget, simply get the box for the whole widget. + if (start > 0) { collapse = bias = "right"; } + var rects; + if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1) + { rect = rects[bias == "right" ? rects.length - 1 : 0]; } + else + { rect = node.getBoundingClientRect(); } + } + if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) { + var rSpan = node.parentNode.getClientRects()[0]; + if (rSpan) + { rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom}; } + else + { rect = nullRect; } + } + + var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top; + var mid = (rtop + rbot) / 2; + var heights = prepared.view.measure.heights; + var i = 0; + for (; i < heights.length - 1; i++) + { if (mid < heights[i]) { break } } + var top = i ? heights[i - 1] : 0, bot = heights[i]; + var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left, + right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left, + top: top, bottom: bot}; + if (!rect.left && !rect.right) { result.bogus = true; } + if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; } + + return result +} + +// Work around problem with bounding client rects on ranges being +// returned incorrectly when zoomed on IE10 and below. +function maybeUpdateRectForZooming(measure, rect) { + if (!window.screen || screen.logicalXDPI == null || + screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure)) + { return rect } + var scaleX = screen.logicalXDPI / screen.deviceXDPI; + var scaleY = screen.logicalYDPI / screen.deviceYDPI; + return {left: rect.left * scaleX, right: rect.right * scaleX, + top: rect.top * scaleY, bottom: rect.bottom * scaleY} +} + +function clearLineMeasurementCacheFor(lineView) { + if (lineView.measure) { + lineView.measure.cache = {}; + lineView.measure.heights = null; + if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++) + { lineView.measure.caches[i] = {}; } } + } +} + +function clearLineMeasurementCache(cm) { + cm.display.externalMeasure = null; + removeChildren(cm.display.lineMeasure); + for (var i = 0; i < cm.display.view.length; i++) + { clearLineMeasurementCacheFor(cm.display.view[i]); } +} + +function clearCaches(cm) { + clearLineMeasurementCache(cm); + cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null; + if (!cm.options.lineWrapping) { cm.display.maxLineChanged = true; } + cm.display.lineNumChars = null; +} + +function pageScrollX() { return window.pageXOffset || (document.documentElement || document.body).scrollLeft } +function pageScrollY() { return window.pageYOffset || (document.documentElement || document.body).scrollTop } + +// Converts a {top, bottom, left, right} box from line-local +// coordinates into another coordinate system. Context may be one of +// "line", "div" (display.lineDiv), "local"./null (editor), "window", +// or "page". +function intoCoordSystem(cm, lineObj, rect, context, includeWidgets) { + if (!includeWidgets && lineObj.widgets) { for (var i = 0; i < lineObj.widgets.length; ++i) { if (lineObj.widgets[i].above) { + var size = widgetHeight(lineObj.widgets[i]); + rect.top += size; rect.bottom += size; + } } } + if (context == "line") { return rect } + if (!context) { context = "local"; } + var yOff = heightAtLine(lineObj); + if (context == "local") { yOff += paddingTop(cm.display); } + else { yOff -= cm.display.viewOffset; } + if (context == "page" || context == "window") { + var lOff = cm.display.lineSpace.getBoundingClientRect(); + yOff += lOff.top + (context == "window" ? 0 : pageScrollY()); + var xOff = lOff.left + (context == "window" ? 0 : pageScrollX()); + rect.left += xOff; rect.right += xOff; + } + rect.top += yOff; rect.bottom += yOff; + return rect +} + +// Coverts a box from "div" coords to another coordinate system. +// Context may be "window", "page", "div", or "local"./null. +function fromCoordSystem(cm, coords, context) { + if (context == "div") { return coords } + var left = coords.left, top = coords.top; + // First move into "page" coordinate system + if (context == "page") { + left -= pageScrollX(); + top -= pageScrollY(); + } else if (context == "local" || !context) { + var localBox = cm.display.sizer.getBoundingClientRect(); + left += localBox.left; + top += localBox.top; + } + + var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect(); + return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top} +} + +function charCoords(cm, pos, context, lineObj, bias) { + if (!lineObj) { lineObj = getLine(cm.doc, pos.line); } + return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context) +} + +// Returns a box for a given cursor position, which may have an +// 'other' property containing the position of the secondary cursor +// on a bidi boundary. +// A cursor Pos(line, char, "before") is on the same visual line as `char - 1` +// and after `char - 1` in writing order of `char - 1` +// A cursor Pos(line, char, "after") is on the same visual line as `char` +// and before `char` in writing order of `char` +// Examples (upper-case letters are RTL, lower-case are LTR): +// Pos(0, 1, ...) +// before after +// ab a|b a|b +// aB a|B aB| +// Ab |Ab A|b +// AB B|A B|A +// Every position after the last character on a line is considered to stick +// to the last character on the line. +function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) { + lineObj = lineObj || getLine(cm.doc, pos.line); + if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); } + function get(ch, right) { + var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight); + if (right) { m.left = m.right; } else { m.right = m.left; } + return intoCoordSystem(cm, lineObj, m, context) + } + var order = getOrder(lineObj, cm.doc.direction), ch = pos.ch, sticky = pos.sticky; + if (ch >= lineObj.text.length) { + ch = lineObj.text.length; + sticky = "before"; + } else if (ch <= 0) { + ch = 0; + sticky = "after"; + } + if (!order) { return get(sticky == "before" ? ch - 1 : ch, sticky == "before") } + + function getBidi(ch, partPos, invert) { + var part = order[partPos], right = (part.level % 2) != 0; + return get(invert ? ch - 1 : ch, right != invert) + } + var partPos = getBidiPartAt(order, ch, sticky); + var other = bidiOther; + var val = getBidi(ch, partPos, sticky == "before"); + if (other != null) { val.other = getBidi(ch, other, sticky != "before"); } + return val +} + +// Used to cheaply estimate the coordinates for a position. Used for +// intermediate scroll updates. +function estimateCoords(cm, pos) { + var left = 0; + pos = clipPos(cm.doc, pos); + if (!cm.options.lineWrapping) { left = charWidth(cm.display) * pos.ch; } + var lineObj = getLine(cm.doc, pos.line); + var top = heightAtLine(lineObj) + paddingTop(cm.display); + return {left: left, right: left, top: top, bottom: top + lineObj.height} +} + +// Positions returned by coordsChar contain some extra information. +// xRel is the relative x position of the input coordinates compared +// to the found position (so xRel > 0 means the coordinates are to +// the right of the character position, for example). When outside +// is true, that means the coordinates lie outside the line's +// vertical range. +function PosWithInfo(line, ch, sticky, outside, xRel) { + var pos = Pos(line, ch, sticky); + pos.xRel = xRel; + if (outside) { pos.outside = true; } + return pos +} + +// Compute the character position closest to the given coordinates. +// Input must be lineSpace-local ("div" coordinate system). +function coordsChar(cm, x, y) { + var doc = cm.doc; + y += cm.display.viewOffset; + if (y < 0) { return PosWithInfo(doc.first, 0, null, true, -1) } + var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1; + if (lineN > last) + { return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, null, true, 1) } + if (x < 0) { x = 0; } + + var lineObj = getLine(doc, lineN); + for (;;) { + var found = coordsCharInner(cm, lineObj, lineN, x, y); + var merged = collapsedSpanAtEnd(lineObj); + var mergedPos = merged && merged.find(0, true); + if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0)) + { lineN = lineNo(lineObj = mergedPos.to.line); } + else + { return found } + } +} + +function wrappedLineExtent(cm, lineObj, preparedMeasure, y) { + var measure = function (ch) { return intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, ch), "line"); }; + var end = lineObj.text.length; + var begin = findFirst(function (ch) { return measure(ch - 1).bottom <= y; }, end, 0); + end = findFirst(function (ch) { return measure(ch).top > y; }, begin, end); + return {begin: begin, end: end} +} + +function wrappedLineExtentChar(cm, lineObj, preparedMeasure, target) { + var targetTop = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, target), "line").top; + return wrappedLineExtent(cm, lineObj, preparedMeasure, targetTop) +} + +function coordsCharInner(cm, lineObj, lineNo$$1, x, y) { + y -= heightAtLine(lineObj); + var begin = 0, end = lineObj.text.length; + var preparedMeasure = prepareMeasureForLine(cm, lineObj); + var pos; + var order = getOrder(lineObj, cm.doc.direction); + if (order) { + if (cm.options.lineWrapping) { + var assign; + ((assign = wrappedLineExtent(cm, lineObj, preparedMeasure, y), begin = assign.begin, end = assign.end)); + } + pos = new Pos(lineNo$$1, begin); + var beginLeft = cursorCoords(cm, pos, "line", lineObj, preparedMeasure).left; + var dir = beginLeft < x ? 1 : -1; + var prevDiff, diff = beginLeft - x, prevPos; + do { + prevDiff = diff; + prevPos = pos; + pos = moveVisually(cm, lineObj, pos, dir); + if (pos == null || pos.ch < begin || end <= (pos.sticky == "before" ? pos.ch - 1 : pos.ch)) { + pos = prevPos; + break + } + diff = cursorCoords(cm, pos, "line", lineObj, preparedMeasure).left - x; + } while ((dir < 0) != (diff < 0) && (Math.abs(diff) <= Math.abs(prevDiff))) + if (Math.abs(diff) > Math.abs(prevDiff)) { + if ((diff < 0) == (prevDiff < 0)) { throw new Error("Broke out of infinite loop in coordsCharInner") } + pos = prevPos; + } + } else { + var ch = findFirst(function (ch) { + var box = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, ch), "line"); + if (box.top > y) { + // For the cursor stickiness + end = Math.min(ch, end); + return true + } + else if (box.bottom <= y) { return false } + else if (box.left > x) { return true } + else if (box.right < x) { return false } + else { return (x - box.left < box.right - x) } + }, begin, end); + ch = skipExtendingChars(lineObj.text, ch, 1); + pos = new Pos(lineNo$$1, ch, ch == end ? "before" : "after"); + } + var coords = cursorCoords(cm, pos, "line", lineObj, preparedMeasure); + if (y < coords.top || coords.bottom < y) { pos.outside = true; } + pos.xRel = x < coords.left ? -1 : (x > coords.right ? 1 : 0); + return pos +} + +var measureText; +// Compute the default text height. +function textHeight(display) { + if (display.cachedTextHeight != null) { return display.cachedTextHeight } + if (measureText == null) { + measureText = elt("pre"); + // Measure a bunch of lines, for browsers that compute + // fractional heights. + for (var i = 0; i < 49; ++i) { + measureText.appendChild(document.createTextNode("x")); + measureText.appendChild(elt("br")); + } + measureText.appendChild(document.createTextNode("x")); + } + removeChildrenAndAdd(display.measure, measureText); + var height = measureText.offsetHeight / 50; + if (height > 3) { display.cachedTextHeight = height; } + removeChildren(display.measure); + return height || 1 +} + +// Compute the default character width. +function charWidth(display) { + if (display.cachedCharWidth != null) { return display.cachedCharWidth } + var anchor = elt("span", "xxxxxxxxxx"); + var pre = elt("pre", [anchor]); + removeChildrenAndAdd(display.measure, pre); + var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10; + if (width > 2) { display.cachedCharWidth = width; } + return width || 10 +} + +// Do a bulk-read of the DOM positions and sizes needed to draw the +// view, so that we don't interleave reading and writing to the DOM. +function getDimensions(cm) { + var d = cm.display, left = {}, width = {}; + var gutterLeft = d.gutters.clientLeft; + for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) { + left[cm.options.gutters[i]] = n.offsetLeft + n.clientLeft + gutterLeft; + width[cm.options.gutters[i]] = n.clientWidth; + } + return {fixedPos: compensateForHScroll(d), + gutterTotalWidth: d.gutters.offsetWidth, + gutterLeft: left, + gutterWidth: width, + wrapperWidth: d.wrapper.clientWidth} +} + +// Computes display.scroller.scrollLeft + display.gutters.offsetWidth, +// but using getBoundingClientRect to get a sub-pixel-accurate +// result. +function compensateForHScroll(display) { + return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left +} + +// Returns a function that estimates the height of a line, to use as +// first approximation until the line becomes visible (and is thus +// properly measurable). +function estimateHeight(cm) { + var th = textHeight(cm.display), wrapping = cm.options.lineWrapping; + var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3); + return function (line) { + if (lineIsHidden(cm.doc, line)) { return 0 } + + var widgetsHeight = 0; + if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) { + if (line.widgets[i].height) { widgetsHeight += line.widgets[i].height; } + } } + + if (wrapping) + { return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th } + else + { return widgetsHeight + th } + } +} + +function estimateLineHeights(cm) { + var doc = cm.doc, est = estimateHeight(cm); + doc.iter(function (line) { + var estHeight = est(line); + if (estHeight != line.height) { updateLineHeight(line, estHeight); } + }); +} + +// Given a mouse event, find the corresponding position. If liberal +// is false, it checks whether a gutter or scrollbar was clicked, +// and returns null if it was. forRect is used by rectangular +// selections, and tries to estimate a character position even for +// coordinates beyond the right of the text. +function posFromMouse(cm, e, liberal, forRect) { + var display = cm.display; + if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") { return null } + + var x, y, space = display.lineSpace.getBoundingClientRect(); + // Fails unpredictably on IE[67] when mouse is dragged around quickly. + try { x = e.clientX - space.left; y = e.clientY - space.top; } + catch (e) { return null } + var coords = coordsChar(cm, x, y), line; + if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) { + var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length; + coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff)); + } + return coords +} + +// Find the view element corresponding to a given line. Return null +// when the line isn't visible. +function findViewIndex(cm, n) { + if (n >= cm.display.viewTo) { return null } + n -= cm.display.viewFrom; + if (n < 0) { return null } + var view = cm.display.view; + for (var i = 0; i < view.length; i++) { + n -= view[i].size; + if (n < 0) { return i } + } +} + +function updateSelection(cm) { + cm.display.input.showSelection(cm.display.input.prepareSelection()); +} + +function prepareSelection(cm, primary) { + var doc = cm.doc, result = {}; + var curFragment = result.cursors = document.createDocumentFragment(); + var selFragment = result.selection = document.createDocumentFragment(); + + for (var i = 0; i < doc.sel.ranges.length; i++) { + if (primary === false && i == doc.sel.primIndex) { continue } + var range$$1 = doc.sel.ranges[i]; + if (range$$1.from().line >= cm.display.viewTo || range$$1.to().line < cm.display.viewFrom) { continue } + var collapsed = range$$1.empty(); + if (collapsed || cm.options.showCursorWhenSelecting) + { drawSelectionCursor(cm, range$$1.head, curFragment); } + if (!collapsed) + { drawSelectionRange(cm, range$$1, selFragment); } + } + return result +} + +// Draws a cursor for the given range +function drawSelectionCursor(cm, head, output) { + var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine); + + var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor")); + cursor.style.left = pos.left + "px"; + cursor.style.top = pos.top + "px"; + cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px"; + + if (pos.other) { + // Secondary cursor, shown when on a 'jump' in bi-directional text + var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor")); + otherCursor.style.display = ""; + otherCursor.style.left = pos.other.left + "px"; + otherCursor.style.top = pos.other.top + "px"; + otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px"; + } +} + +// Draws the given range as a highlighted selection +function drawSelectionRange(cm, range$$1, output) { + var display = cm.display, doc = cm.doc; + var fragment = document.createDocumentFragment(); + var padding = paddingH(cm.display), leftSide = padding.left; + var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right; + + function add(left, top, width, bottom) { + if (top < 0) { top = 0; } + top = Math.round(top); + bottom = Math.round(bottom); + 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"))); + } + + function drawForLine(line, fromArg, toArg) { + var lineObj = getLine(doc, line); + var lineLen = lineObj.text.length; + var start, end; + function coords(ch, bias) { + return charCoords(cm, Pos(line, ch), "div", lineObj, bias) + } + + iterateBidiSections(getOrder(lineObj, doc.direction), fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir) { + var leftPos = coords(from, "left"), rightPos, left, right; + if (from == to) { + rightPos = leftPos; + left = right = leftPos.left; + } else { + rightPos = coords(to - 1, "right"); + if (dir == "rtl") { var tmp = leftPos; leftPos = rightPos; rightPos = tmp; } + left = leftPos.left; + right = rightPos.right; + } + if (fromArg == null && from == 0) { left = leftSide; } + if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part + add(left, leftPos.top, null, leftPos.bottom); + left = leftSide; + if (leftPos.bottom < rightPos.top) { add(left, leftPos.bottom, null, rightPos.top); } + } + if (toArg == null && to == lineLen) { right = rightSide; } + if (!start || leftPos.top < start.top || leftPos.top == start.top && leftPos.left < start.left) + { start = leftPos; } + if (!end || rightPos.bottom > end.bottom || rightPos.bottom == end.bottom && rightPos.right > end.right) + { end = rightPos; } + if (left < leftSide + 1) { left = leftSide; } + add(left, rightPos.top, right - left, rightPos.bottom); + }); + return {start: start, end: end} + } + + var sFrom = range$$1.from(), sTo = range$$1.to(); + if (sFrom.line == sTo.line) { + drawForLine(sFrom.line, sFrom.ch, sTo.ch); + } else { + var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line); + var singleVLine = visualLine(fromLine) == visualLine(toLine); + var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end; + var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start; + if (singleVLine) { + if (leftEnd.top < rightStart.top - 2) { + add(leftEnd.right, leftEnd.top, null, leftEnd.bottom); + add(leftSide, rightStart.top, rightStart.left, rightStart.bottom); + } else { + add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom); + } + } + if (leftEnd.bottom < rightStart.top) + { add(leftSide, leftEnd.bottom, null, rightStart.top); } + } + + output.appendChild(fragment); +} + +// Cursor-blinking +function restartBlink(cm) { + if (!cm.state.focused) { return } + var display = cm.display; + clearInterval(display.blinker); + var on = true; + display.cursorDiv.style.visibility = ""; + if (cm.options.cursorBlinkRate > 0) + { display.blinker = setInterval(function () { return display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden"; }, + cm.options.cursorBlinkRate); } + else if (cm.options.cursorBlinkRate < 0) + { display.cursorDiv.style.visibility = "hidden"; } +} + +function ensureFocus(cm) { + if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm); } +} + +function delayBlurEvent(cm) { + cm.state.delayingBlurEvent = true; + setTimeout(function () { if (cm.state.delayingBlurEvent) { + cm.state.delayingBlurEvent = false; + onBlur(cm); + } }, 100); +} + +function onFocus(cm, e) { + if (cm.state.delayingBlurEvent) { cm.state.delayingBlurEvent = false; } + + if (cm.options.readOnly == "nocursor") { return } + if (!cm.state.focused) { + signal(cm, "focus", cm, e); + cm.state.focused = true; + addClass(cm.display.wrapper, "CodeMirror-focused"); + // This test prevents this from firing when a context + // menu is closed (since the input reset would kill the + // select-all detection hack) + if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) { + cm.display.input.reset(); + if (webkit) { setTimeout(function () { return cm.display.input.reset(true); }, 20); } // Issue #1730 + } + cm.display.input.receivedFocus(); + } + restartBlink(cm); +} +function onBlur(cm, e) { + if (cm.state.delayingBlurEvent) { return } + + if (cm.state.focused) { + signal(cm, "blur", cm, e); + cm.state.focused = false; + rmClass(cm.display.wrapper, "CodeMirror-focused"); + } + clearInterval(cm.display.blinker); + setTimeout(function () { if (!cm.state.focused) { cm.display.shift = false; } }, 150); +} + +// Re-align line numbers and gutter marks to compensate for +// horizontal scrolling. +function alignHorizontally(cm) { + var display = cm.display, view = display.view; + if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) { return } + var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft; + var gutterW = display.gutters.offsetWidth, left = comp + "px"; + for (var i = 0; i < view.length; i++) { if (!view[i].hidden) { + if (cm.options.fixedGutter) { + if (view[i].gutter) + { view[i].gutter.style.left = left; } + if (view[i].gutterBackground) + { view[i].gutterBackground.style.left = left; } + } + var align = view[i].alignable; + if (align) { for (var j = 0; j < align.length; j++) + { align[j].style.left = left; } } + } } + if (cm.options.fixedGutter) + { display.gutters.style.left = (comp + gutterW) + "px"; } +} + +// Used to ensure that the line number gutter is still the right +// size for the current document size. Returns true when an update +// is needed. +function maybeUpdateLineNumberWidth(cm) { + if (!cm.options.lineNumbers) { return false } + var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display; + if (last.length != display.lineNumChars) { + var test = display.measure.appendChild(elt("div", [elt("div", last)], + "CodeMirror-linenumber CodeMirror-gutter-elt")); + var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW; + display.lineGutter.style.width = ""; + display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1; + display.lineNumWidth = display.lineNumInnerWidth + padding; + display.lineNumChars = display.lineNumInnerWidth ? last.length : -1; + display.lineGutter.style.width = display.lineNumWidth + "px"; + updateGutterSpace(cm); + return true + } + return false +} + +// Read the actual heights of the rendered lines, and update their +// stored heights to match. +function updateHeightsInViewport(cm) { + var display = cm.display; + var prevBottom = display.lineDiv.offsetTop; + for (var i = 0; i < display.view.length; i++) { + var cur = display.view[i], height = (void 0); + if (cur.hidden) { continue } + if (ie && ie_version < 8) { + var bot = cur.node.offsetTop + cur.node.offsetHeight; + height = bot - prevBottom; + prevBottom = bot; + } else { + var box = cur.node.getBoundingClientRect(); + height = box.bottom - box.top; + } + var diff = cur.line.height - height; + if (height < 2) { height = textHeight(display); } + if (diff > .001 || diff < -.001) { + updateLineHeight(cur.line, height); + updateWidgetHeight(cur.line); + if (cur.rest) { for (var j = 0; j < cur.rest.length; j++) + { updateWidgetHeight(cur.rest[j]); } } + } + } +} + +// Read and store the height of line widgets associated with the +// given line. +function updateWidgetHeight(line) { + if (line.widgets) { for (var i = 0; i < line.widgets.length; ++i) + { line.widgets[i].height = line.widgets[i].node.parentNode.offsetHeight; } } +} + +// Compute the lines that are visible in a given viewport (defaults +// the the current scroll position). viewport may contain top, +// height, and ensure (see op.scrollToPos) properties. +function visibleLines(display, doc, viewport) { + var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop; + top = Math.floor(top - paddingTop(display)); + var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight; + + var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom); + // Ensure is a {from: {line, ch}, to: {line, ch}} object, and + // forces those lines into the viewport (if possible). + if (viewport && viewport.ensure) { + var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line; + if (ensureFrom < from) { + from = ensureFrom; + to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight); + } else if (Math.min(ensureTo, doc.lastLine()) >= to) { + from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight); + to = ensureTo; + } + } + return {from: from, to: Math.max(to, from + 1)} +} + +// Sync the scrollable area and scrollbars, ensure the viewport +// covers the visible area. +function setScrollTop(cm, val) { + if (Math.abs(cm.doc.scrollTop - val) < 2) { return } + cm.doc.scrollTop = val; + if (!gecko) { updateDisplaySimple(cm, {top: val}); } + if (cm.display.scroller.scrollTop != val) { cm.display.scroller.scrollTop = val; } + cm.display.scrollbars.setScrollTop(val); + if (gecko) { updateDisplaySimple(cm); } + startWorker(cm, 100); +} +// Sync scroller and scrollbar, ensure the gutter elements are +// aligned. +function setScrollLeft(cm, val, isScroller) { + if (isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) { return } + val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth); + cm.doc.scrollLeft = val; + alignHorizontally(cm); + if (cm.display.scroller.scrollLeft != val) { cm.display.scroller.scrollLeft = val; } + cm.display.scrollbars.setScrollLeft(val); +} + +// Since the delta values reported on mouse wheel events are +// unstandardized between browsers and even browser versions, and +// generally horribly unpredictable, this code starts by measuring +// the scroll effect that the first few mouse wheel events have, +// and, from that, detects the way it can convert deltas to pixel +// offsets afterwards. +// +// The reason we want to know the amount a wheel event will scroll +// is that it gives us a chance to update the display before the +// actual scrolling happens, reducing flickering. + +var wheelSamples = 0; +var wheelPixelsPerUnit = null; +// Fill in a browser-detected starting value on browsers where we +// know one. These don't have to be accurate -- the result of them +// being wrong would just be a slight flicker on the first wheel +// scroll (if it is large enough). +if (ie) { wheelPixelsPerUnit = -.53; } +else if (gecko) { wheelPixelsPerUnit = 15; } +else if (chrome) { wheelPixelsPerUnit = -.7; } +else if (safari) { wheelPixelsPerUnit = -1/3; } + +function wheelEventDelta(e) { + var dx = e.wheelDeltaX, dy = e.wheelDeltaY; + if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) { dx = e.detail; } + if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) { dy = e.detail; } + else if (dy == null) { dy = e.wheelDelta; } + return {x: dx, y: dy} +} +function wheelEventPixels(e) { + var delta = wheelEventDelta(e); + delta.x *= wheelPixelsPerUnit; + delta.y *= wheelPixelsPerUnit; + return delta +} + +function onScrollWheel(cm, e) { + var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y; + + var display = cm.display, scroll = display.scroller; + // Quit if there's nothing to scroll here + var canScrollX = scroll.scrollWidth > scroll.clientWidth; + var canScrollY = scroll.scrollHeight > scroll.clientHeight; + if (!(dx && canScrollX || dy && canScrollY)) { return } + + // Webkit browsers on OS X abort momentum scrolls when the target + // of the scroll event is removed from the scrollable element. + // This hack (see related code in patchDisplay) makes sure the + // element is kept around. + if (dy && mac && webkit) { + outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) { + for (var i = 0; i < view.length; i++) { + if (view[i].node == cur) { + cm.display.currentWheelTarget = cur; + break outer + } + } + } + } + + // On some browsers, horizontal scrolling will cause redraws to + // happen before the gutter has been realigned, causing it to + // wriggle around in a most unseemly way. When we have an + // estimated pixels/delta value, we just handle horizontal + // scrolling entirely here. It'll be slightly off from native, but + // better than glitching out. + if (dx && !gecko && !presto && wheelPixelsPerUnit != null) { + if (dy && canScrollY) + { setScrollTop(cm, Math.max(0, Math.min(scroll.scrollTop + dy * wheelPixelsPerUnit, scroll.scrollHeight - scroll.clientHeight))); } + setScrollLeft(cm, Math.max(0, Math.min(scroll.scrollLeft + dx * wheelPixelsPerUnit, scroll.scrollWidth - scroll.clientWidth))); + // Only prevent default scrolling if vertical scrolling is + // actually possible. Otherwise, it causes vertical scroll + // jitter on OSX trackpads when deltaX is small and deltaY + // is large (issue #3579) + if (!dy || (dy && canScrollY)) + { e_preventDefault(e); } + display.wheelStartX = null; // Abort measurement, if in progress + return + } + + // 'Project' the visible viewport to cover the area that is being + // scrolled into view (if we know enough to estimate it). + if (dy && wheelPixelsPerUnit != null) { + var pixels = dy * wheelPixelsPerUnit; + var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight; + if (pixels < 0) { top = Math.max(0, top + pixels - 50); } + else { bot = Math.min(cm.doc.height, bot + pixels + 50); } + updateDisplaySimple(cm, {top: top, bottom: bot}); + } + + if (wheelSamples < 20) { + if (display.wheelStartX == null) { + display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop; + display.wheelDX = dx; display.wheelDY = dy; + setTimeout(function () { + if (display.wheelStartX == null) { return } + var movedX = scroll.scrollLeft - display.wheelStartX; + var movedY = scroll.scrollTop - display.wheelStartY; + var sample = (movedY && display.wheelDY && movedY / display.wheelDY) || + (movedX && display.wheelDX && movedX / display.wheelDX); + display.wheelStartX = display.wheelStartY = null; + if (!sample) { return } + wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1); + ++wheelSamples; + }, 200); + } else { + display.wheelDX += dx; display.wheelDY += dy; + } + } +} + +// SCROLLBARS + +// Prepare DOM reads needed to update the scrollbars. Done in one +// shot to minimize update/measure roundtrips. +function measureForScrollbars(cm) { + var d = cm.display, gutterW = d.gutters.offsetWidth; + var docH = Math.round(cm.doc.height + paddingVert(cm.display)); + return { + clientHeight: d.scroller.clientHeight, + viewHeight: d.wrapper.clientHeight, + scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth, + viewWidth: d.wrapper.clientWidth, + barLeft: cm.options.fixedGutter ? gutterW : 0, + docHeight: docH, + scrollHeight: docH + scrollGap(cm) + d.barHeight, + nativeBarWidth: d.nativeBarWidth, + gutterWidth: gutterW + } +} + +var NativeScrollbars = function(place, scroll, cm) { + this.cm = cm; + var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar"); + var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar"); + place(vert); place(horiz); + + on(vert, "scroll", function () { + if (vert.clientHeight) { scroll(vert.scrollTop, "vertical"); } + }); + on(horiz, "scroll", function () { + if (horiz.clientWidth) { scroll(horiz.scrollLeft, "horizontal"); } + }); + + this.checkedZeroWidth = false; + // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8). + if (ie && ie_version < 8) { this.horiz.style.minHeight = this.vert.style.minWidth = "18px"; } +}; + +NativeScrollbars.prototype.update = function (measure) { + var needsH = measure.scrollWidth > measure.clientWidth + 1; + var needsV = measure.scrollHeight > measure.clientHeight + 1; + var sWidth = measure.nativeBarWidth; + + if (needsV) { + this.vert.style.display = "block"; + this.vert.style.bottom = needsH ? sWidth + "px" : "0"; + var totalHeight = measure.viewHeight - (needsH ? sWidth : 0); + // A bug in IE8 can cause this value to be negative, so guard it. + this.vert.firstChild.style.height = + Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px"; + } else { + this.vert.style.display = ""; + this.vert.firstChild.style.height = "0"; + } + + if (needsH) { + this.horiz.style.display = "block"; + this.horiz.style.right = needsV ? sWidth + "px" : "0"; + this.horiz.style.left = measure.barLeft + "px"; + var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0); + this.horiz.firstChild.style.width = + Math.max(0, measure.scrollWidth - measure.clientWidth + totalWidth) + "px"; + } else { + this.horiz.style.display = ""; + this.horiz.firstChild.style.width = "0"; + } + + if (!this.checkedZeroWidth && measure.clientHeight > 0) { + if (sWidth == 0) { this.zeroWidthHack(); } + this.checkedZeroWidth = true; + } + + return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0} +}; + +NativeScrollbars.prototype.setScrollLeft = function (pos) { + if (this.horiz.scrollLeft != pos) { this.horiz.scrollLeft = pos; } + if (this.disableHoriz) { this.enableZeroWidthBar(this.horiz, this.disableHoriz); } +}; + +NativeScrollbars.prototype.setScrollTop = function (pos) { + if (this.vert.scrollTop != pos) { this.vert.scrollTop = pos; } + if (this.disableVert) { this.enableZeroWidthBar(this.vert, this.disableVert); } +}; + +NativeScrollbars.prototype.zeroWidthHack = function () { + var w = mac && !mac_geMountainLion ? "12px" : "18px"; + this.horiz.style.height = this.vert.style.width = w; + this.horiz.style.pointerEvents = this.vert.style.pointerEvents = "none"; + this.disableHoriz = new Delayed; + this.disableVert = new Delayed; +}; + +NativeScrollbars.prototype.enableZeroWidthBar = function (bar, delay) { + bar.style.pointerEvents = "auto"; + function maybeDisable() { + // To find out whether the scrollbar is still visible, we + // check whether the element under the pixel in the bottom + // left corner of the scrollbar box is the scrollbar box + // itself (when the bar is still visible) or its filler child + // (when the bar is hidden). If it is still visible, we keep + // it enabled, if it's hidden, we disable pointer events. + var box = bar.getBoundingClientRect(); + var elt$$1 = document.elementFromPoint(box.left + 1, box.bottom - 1); + if (elt$$1 != bar) { bar.style.pointerEvents = "none"; } + else { delay.set(1000, maybeDisable); } + } + delay.set(1000, maybeDisable); +}; + +NativeScrollbars.prototype.clear = function () { + var parent = this.horiz.parentNode; + parent.removeChild(this.horiz); + parent.removeChild(this.vert); +}; + +var NullScrollbars = function () {}; + +NullScrollbars.prototype.update = function () { return {bottom: 0, right: 0} }; +NullScrollbars.prototype.setScrollLeft = function () {}; +NullScrollbars.prototype.setScrollTop = function () {}; +NullScrollbars.prototype.clear = function () {}; + +function updateScrollbars(cm, measure) { + if (!measure) { measure = measureForScrollbars(cm); } + var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight; + updateScrollbarsInner(cm, measure); + for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) { + if (startWidth != cm.display.barWidth && cm.options.lineWrapping) + { updateHeightsInViewport(cm); } + updateScrollbarsInner(cm, measureForScrollbars(cm)); + startWidth = cm.display.barWidth; startHeight = cm.display.barHeight; + } +} + +// Re-synchronize the fake scrollbars with the actual size of the +// content. +function updateScrollbarsInner(cm, measure) { + var d = cm.display; + var sizes = d.scrollbars.update(measure); + + d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px"; + d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px"; + d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent"; + + if (sizes.right && sizes.bottom) { + d.scrollbarFiller.style.display = "block"; + d.scrollbarFiller.style.height = sizes.bottom + "px"; + d.scrollbarFiller.style.width = sizes.right + "px"; + } else { d.scrollbarFiller.style.display = ""; } + if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) { + d.gutterFiller.style.display = "block"; + d.gutterFiller.style.height = sizes.bottom + "px"; + d.gutterFiller.style.width = measure.gutterWidth + "px"; + } else { d.gutterFiller.style.display = ""; } +} + +var scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars}; + +function initScrollbars(cm) { + if (cm.display.scrollbars) { + cm.display.scrollbars.clear(); + if (cm.display.scrollbars.addClass) + { rmClass(cm.display.wrapper, cm.display.scrollbars.addClass); } + } + + cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](function (node) { + cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller); + // Prevent clicks in the scrollbars from killing focus + on(node, "mousedown", function () { + if (cm.state.focused) { setTimeout(function () { return cm.display.input.focus(); }, 0); } + }); + node.setAttribute("cm-not-content", "true"); + }, function (pos, axis) { + if (axis == "horizontal") { setScrollLeft(cm, pos); } + else { setScrollTop(cm, pos); } + }, cm); + if (cm.display.scrollbars.addClass) + { addClass(cm.display.wrapper, cm.display.scrollbars.addClass); } +} + +// SCROLLING THINGS INTO VIEW + +// If an editor sits on the top or bottom of the window, partially +// scrolled out of view, this ensures that the cursor is visible. +function maybeScrollWindow(cm, rect) { + if (signalDOMEvent(cm, "scrollCursorIntoView")) { return } + + var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null; + if (rect.top + box.top < 0) { doScroll = true; } + else if (rect.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) { doScroll = false; } + if (doScroll != null && !phantom) { + 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;")); + cm.display.lineSpace.appendChild(scrollNode); + scrollNode.scrollIntoView(doScroll); + cm.display.lineSpace.removeChild(scrollNode); + } +} + +// Scroll a given position into view (immediately), verifying that +// it actually became visible (as line heights are accurately +// measured, the position of something may 'drift' during drawing). +function scrollPosIntoView(cm, pos, end, margin) { + if (margin == null) { margin = 0; } + var rect; + for (var limit = 0; limit < 5; limit++) { + var changed = false; + var coords = cursorCoords(cm, pos); + var endCoords = !end || end == pos ? coords : cursorCoords(cm, end); + rect = {left: Math.min(coords.left, endCoords.left), + top: Math.min(coords.top, endCoords.top) - margin, + right: Math.max(coords.left, endCoords.left), + bottom: Math.max(coords.bottom, endCoords.bottom) + margin}; + var scrollPos = calculateScrollPos(cm, rect); + var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft; + if (scrollPos.scrollTop != null) { + setScrollTop(cm, scrollPos.scrollTop); + if (Math.abs(cm.doc.scrollTop - startTop) > 1) { changed = true; } + } + if (scrollPos.scrollLeft != null) { + setScrollLeft(cm, scrollPos.scrollLeft); + if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) { changed = true; } + } + if (!changed) { break } + } + return rect +} + +// Scroll a given set of coordinates into view (immediately). +function scrollIntoView(cm, rect) { + var scrollPos = calculateScrollPos(cm, rect); + if (scrollPos.scrollTop != null) { setScrollTop(cm, scrollPos.scrollTop); } + if (scrollPos.scrollLeft != null) { setScrollLeft(cm, scrollPos.scrollLeft); } +} + +// Calculate a new scroll position needed to scroll the given +// rectangle into view. Returns an object with scrollTop and +// scrollLeft properties. When these are undefined, the +// vertical/horizontal position does not need to be adjusted. +function calculateScrollPos(cm, rect) { + var display = cm.display, snapMargin = textHeight(cm.display); + if (rect.top < 0) { rect.top = 0; } + var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop; + var screen = displayHeight(cm), result = {}; + if (rect.bottom - rect.top > screen) { rect.bottom = rect.top + screen; } + var docBottom = cm.doc.height + paddingVert(display); + var atTop = rect.top < snapMargin, atBottom = rect.bottom > docBottom - snapMargin; + if (rect.top < screentop) { + result.scrollTop = atTop ? 0 : rect.top; + } else if (rect.bottom > screentop + screen) { + var newTop = Math.min(rect.top, (atBottom ? docBottom : rect.bottom) - screen); + if (newTop != screentop) { result.scrollTop = newTop; } + } + + var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft; + var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0); + var tooWide = rect.right - rect.left > screenw; + if (tooWide) { rect.right = rect.left + screenw; } + if (rect.left < 10) + { result.scrollLeft = 0; } + else if (rect.left < screenleft) + { result.scrollLeft = Math.max(0, rect.left - (tooWide ? 0 : 10)); } + else if (rect.right > screenw + screenleft - 3) + { result.scrollLeft = rect.right + (tooWide ? 0 : 10) - screenw; } + return result +} + +// Store a relative adjustment to the scroll position in the current +// operation (to be applied when the operation finishes). +function addToScrollPos(cm, left, top) { + if (left != null || top != null) { resolveScrollToPos(cm); } + if (left != null) + { cm.curOp.scrollLeft = (cm.curOp.scrollLeft == null ? cm.doc.scrollLeft : cm.curOp.scrollLeft) + left; } + if (top != null) + { cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top; } +} + +// Make sure that at the end of the operation the current cursor is +// shown. +function ensureCursorVisible(cm) { + resolveScrollToPos(cm); + var cur = cm.getCursor(), from = cur, to = cur; + if (!cm.options.lineWrapping) { + from = cur.ch ? Pos(cur.line, cur.ch - 1) : cur; + to = Pos(cur.line, cur.ch + 1); + } + cm.curOp.scrollToPos = {from: from, to: to, margin: cm.options.cursorScrollMargin}; +} + +// When an operation has its scrollToPos property set, and another +// scroll action is applied before the end of the operation, this +// 'simulates' scrolling that position into view in a cheap way, so +// that the effect of intermediate scroll commands is not ignored. +function resolveScrollToPos(cm) { + var range$$1 = cm.curOp.scrollToPos; + if (range$$1) { + cm.curOp.scrollToPos = null; + var from = estimateCoords(cm, range$$1.from), to = estimateCoords(cm, range$$1.to); + var sPos = calculateScrollPos(cm, { + left: Math.min(from.left, to.left), + top: Math.min(from.top, to.top) - range$$1.margin, + right: Math.max(from.right, to.right), + bottom: Math.max(from.bottom, to.bottom) + range$$1.margin + }); + cm.scrollTo(sPos.scrollLeft, sPos.scrollTop); + } +} + +// Operations are used to wrap a series of changes to the editor +// state in such a way that each change won't have to update the +// cursor and display (which would be awkward, slow, and +// error-prone). Instead, display updates are batched and then all +// combined and executed at once. + +var nextOpId = 0; +// Start a new operation. +function startOperation(cm) { + cm.curOp = { + cm: cm, + viewChanged: false, // Flag that indicates that lines might need to be redrawn + startHeight: cm.doc.height, // Used to detect need to update scrollbar + forceUpdate: false, // Used to force a redraw + updateInput: null, // Whether to reset the input textarea + typing: false, // Whether this reset should be careful to leave existing text (for compositing) + changeObjs: null, // Accumulated changes, for firing change events + cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on + cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already + selectionChanged: false, // Whether the selection needs to be redrawn + updateMaxLine: false, // Set when the widest line needs to be determined anew + scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet + scrollToPos: null, // Used to scroll to a specific position + focus: false, + id: ++nextOpId // Unique ID + }; + pushOperation(cm.curOp); +} + +// Finish an operation, updating the display and signalling delayed events +function endOperation(cm) { + var op = cm.curOp; + finishOperation(op, function (group) { + for (var i = 0; i < group.ops.length; i++) + { group.ops[i].cm.curOp = null; } + endOperations(group); + }); +} + +// The DOM updates done when an operation finishes are batched so +// that the minimum number of relayouts are required. +function endOperations(group) { + var ops = group.ops; + for (var i = 0; i < ops.length; i++) // Read DOM + { endOperation_R1(ops[i]); } + for (var i$1 = 0; i$1 < ops.length; i$1++) // Write DOM (maybe) + { endOperation_W1(ops[i$1]); } + for (var i$2 = 0; i$2 < ops.length; i$2++) // Read DOM + { endOperation_R2(ops[i$2]); } + for (var i$3 = 0; i$3 < ops.length; i$3++) // Write DOM (maybe) + { endOperation_W2(ops[i$3]); } + for (var i$4 = 0; i$4 < ops.length; i$4++) // Read DOM + { endOperation_finish(ops[i$4]); } +} + +function endOperation_R1(op) { + var cm = op.cm, display = cm.display; + maybeClipScrollbars(cm); + if (op.updateMaxLine) { findMaxLine(cm); } + + op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null || + op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom || + op.scrollToPos.to.line >= display.viewTo) || + display.maxLineChanged && cm.options.lineWrapping; + op.update = op.mustUpdate && + new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate); +} + +function endOperation_W1(op) { + op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update); +} + +function endOperation_R2(op) { + var cm = op.cm, display = cm.display; + if (op.updatedDisplay) { updateHeightsInViewport(cm); } + + op.barMeasure = measureForScrollbars(cm); + + // If the max line changed since it was last measured, measure it, + // and ensure the document's width matches it. + // updateDisplay_W2 will use these properties to do the actual resizing + if (display.maxLineChanged && !cm.options.lineWrapping) { + op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3; + cm.display.sizerWidth = op.adjustWidthTo; + op.barMeasure.scrollWidth = + Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth); + op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm)); + } + + if (op.updatedDisplay || op.selectionChanged) + { op.preparedSelection = display.input.prepareSelection(op.focus); } +} + +function endOperation_W2(op) { + var cm = op.cm; + + if (op.adjustWidthTo != null) { + cm.display.sizer.style.minWidth = op.adjustWidthTo + "px"; + if (op.maxScrollLeft < cm.doc.scrollLeft) + { setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true); } + cm.display.maxLineChanged = false; + } + + var takeFocus = op.focus && op.focus == activeElt() && (!document.hasFocus || document.hasFocus()); + if (op.preparedSelection) + { cm.display.input.showSelection(op.preparedSelection, takeFocus); } + if (op.updatedDisplay || op.startHeight != cm.doc.height) + { updateScrollbars(cm, op.barMeasure); } + if (op.updatedDisplay) + { setDocumentHeight(cm, op.barMeasure); } + + if (op.selectionChanged) { restartBlink(cm); } + + if (cm.state.focused && op.updateInput) + { cm.display.input.reset(op.typing); } + if (takeFocus) { ensureFocus(op.cm); } +} + +function endOperation_finish(op) { + var cm = op.cm, display = cm.display, doc = cm.doc; + + if (op.updatedDisplay) { postUpdateDisplay(cm, op.update); } + + // Abort mouse wheel delta measurement, when scrolling explicitly + if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos)) + { display.wheelStartX = display.wheelStartY = null; } + + // Propagate the scroll position to the actual DOM scroller + if (op.scrollTop != null && (display.scroller.scrollTop != op.scrollTop || op.forceScroll)) { + doc.scrollTop = Math.max(0, Math.min(display.scroller.scrollHeight - display.scroller.clientHeight, op.scrollTop)); + display.scrollbars.setScrollTop(doc.scrollTop); + display.scroller.scrollTop = doc.scrollTop; + } + if (op.scrollLeft != null && (display.scroller.scrollLeft != op.scrollLeft || op.forceScroll)) { + doc.scrollLeft = Math.max(0, Math.min(display.scroller.scrollWidth - display.scroller.clientWidth, op.scrollLeft)); + display.scrollbars.setScrollLeft(doc.scrollLeft); + display.scroller.scrollLeft = doc.scrollLeft; + alignHorizontally(cm); + } + // If we need to scroll a specific position into view, do so. + if (op.scrollToPos) { + var rect = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from), + clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin); + maybeScrollWindow(cm, rect); + } + + // Fire events for markers that are hidden/unidden by editing or + // undoing + var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers; + if (hidden) { for (var i = 0; i < hidden.length; ++i) + { if (!hidden[i].lines.length) { signal(hidden[i], "hide"); } } } + if (unhidden) { for (var i$1 = 0; i$1 < unhidden.length; ++i$1) + { if (unhidden[i$1].lines.length) { signal(unhidden[i$1], "unhide"); } } } + + if (display.wrapper.offsetHeight) + { doc.scrollTop = cm.display.scroller.scrollTop; } + + // Fire change events, and delayed event handlers + if (op.changeObjs) + { signal(cm, "changes", cm, op.changeObjs); } + if (op.update) + { op.update.finish(); } +} + +// Run the given function in an operation +function runInOp(cm, f) { + if (cm.curOp) { return f() } + startOperation(cm); + try { return f() } + finally { endOperation(cm); } +} +// Wraps a function in an operation. Returns the wrapped function. +function operation(cm, f) { + return function() { + if (cm.curOp) { return f.apply(cm, arguments) } + startOperation(cm); + try { return f.apply(cm, arguments) } + finally { endOperation(cm); } + } +} +// Used to add methods to editor and doc instances, wrapping them in +// operations. +function methodOp(f) { + return function() { + if (this.curOp) { return f.apply(this, arguments) } + startOperation(this); + try { return f.apply(this, arguments) } + finally { endOperation(this); } + } +} +function docMethodOp(f) { + return function() { + var cm = this.cm; + if (!cm || cm.curOp) { return f.apply(this, arguments) } + startOperation(cm); + try { return f.apply(this, arguments) } + finally { endOperation(cm); } + } +} + +// Updates the display.view data structure for a given change to the +// document. From and to are in pre-change coordinates. Lendiff is +// the amount of lines added or subtracted by the change. This is +// used for changes that span multiple lines, or change the way +// lines are divided into visual lines. regLineChange (below) +// registers single-line changes. +function regChange(cm, from, to, lendiff) { + if (from == null) { from = cm.doc.first; } + if (to == null) { to = cm.doc.first + cm.doc.size; } + if (!lendiff) { lendiff = 0; } + + var display = cm.display; + if (lendiff && to < display.viewTo && + (display.updateLineNumbers == null || display.updateLineNumbers > from)) + { display.updateLineNumbers = from; } + + cm.curOp.viewChanged = true; + + if (from >= display.viewTo) { // Change after + if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo) + { resetView(cm); } + } else if (to <= display.viewFrom) { // Change before + if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) { + resetView(cm); + } else { + display.viewFrom += lendiff; + display.viewTo += lendiff; + } + } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap + resetView(cm); + } else if (from <= display.viewFrom) { // Top overlap + var cut = viewCuttingPoint(cm, to, to + lendiff, 1); + if (cut) { + display.view = display.view.slice(cut.index); + display.viewFrom = cut.lineN; + display.viewTo += lendiff; + } else { + resetView(cm); + } + } else if (to >= display.viewTo) { // Bottom overlap + var cut$1 = viewCuttingPoint(cm, from, from, -1); + if (cut$1) { + display.view = display.view.slice(0, cut$1.index); + display.viewTo = cut$1.lineN; + } else { + resetView(cm); + } + } else { // Gap in the middle + var cutTop = viewCuttingPoint(cm, from, from, -1); + var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1); + if (cutTop && cutBot) { + display.view = display.view.slice(0, cutTop.index) + .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN)) + .concat(display.view.slice(cutBot.index)); + display.viewTo += lendiff; + } else { + resetView(cm); + } + } + + var ext = display.externalMeasured; + if (ext) { + if (to < ext.lineN) + { ext.lineN += lendiff; } + else if (from < ext.lineN + ext.size) + { display.externalMeasured = null; } + } +} + +// Register a change to a single line. Type must be one of "text", +// "gutter", "class", "widget" +function regLineChange(cm, line, type) { + cm.curOp.viewChanged = true; + var display = cm.display, ext = cm.display.externalMeasured; + if (ext && line >= ext.lineN && line < ext.lineN + ext.size) + { display.externalMeasured = null; } + + if (line < display.viewFrom || line >= display.viewTo) { return } + var lineView = display.view[findViewIndex(cm, line)]; + if (lineView.node == null) { return } + var arr = lineView.changes || (lineView.changes = []); + if (indexOf(arr, type) == -1) { arr.push(type); } +} + +// Clear the view. +function resetView(cm) { + cm.display.viewFrom = cm.display.viewTo = cm.doc.first; + cm.display.view = []; + cm.display.viewOffset = 0; +} + +function viewCuttingPoint(cm, oldN, newN, dir) { + var index = findViewIndex(cm, oldN), diff, view = cm.display.view; + if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size) + { return {index: index, lineN: newN} } + var n = cm.display.viewFrom; + for (var i = 0; i < index; i++) + { n += view[i].size; } + if (n != oldN) { + if (dir > 0) { + if (index == view.length - 1) { return null } + diff = (n + view[index].size) - oldN; + index++; + } else { + diff = n - oldN; + } + oldN += diff; newN += diff; + } + while (visualLineNo(cm.doc, newN) != newN) { + if (index == (dir < 0 ? 0 : view.length - 1)) { return null } + newN += dir * view[index - (dir < 0 ? 1 : 0)].size; + index += dir; + } + return {index: index, lineN: newN} +} + +// Force the view to cover a given range, adding empty view element +// or clipping off existing ones as needed. +function adjustView(cm, from, to) { + var display = cm.display, view = display.view; + if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) { + display.view = buildViewArray(cm, from, to); + display.viewFrom = from; + } else { + if (display.viewFrom > from) + { display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view); } + else if (display.viewFrom < from) + { display.view = display.view.slice(findViewIndex(cm, from)); } + display.viewFrom = from; + if (display.viewTo < to) + { display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)); } + else if (display.viewTo > to) + { display.view = display.view.slice(0, findViewIndex(cm, to)); } + } + display.viewTo = to; +} + +// Count the number of lines in the view whose DOM representation is +// out of date (or nonexistent). +function countDirtyView(cm) { + var view = cm.display.view, dirty = 0; + for (var i = 0; i < view.length; i++) { + var lineView = view[i]; + if (!lineView.hidden && (!lineView.node || lineView.changes)) { ++dirty; } + } + return dirty +} + +// HIGHLIGHT WORKER + +function startWorker(cm, time) { + if (cm.doc.mode.startState && cm.doc.frontier < cm.display.viewTo) + { cm.state.highlight.set(time, bind(highlightWorker, cm)); } +} + +function highlightWorker(cm) { + var doc = cm.doc; + if (doc.frontier < doc.first) { doc.frontier = doc.first; } + if (doc.frontier >= cm.display.viewTo) { return } + var end = +new Date + cm.options.workTime; + var state = copyState(doc.mode, getStateBefore(cm, doc.frontier)); + var changedLines = []; + + doc.iter(doc.frontier, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) { + if (doc.frontier >= cm.display.viewFrom) { // Visible + var oldStyles = line.styles, tooLong = line.text.length > cm.options.maxHighlightLength; + var highlighted = highlightLine(cm, line, tooLong ? copyState(doc.mode, state) : state, true); + line.styles = highlighted.styles; + var oldCls = line.styleClasses, newCls = highlighted.classes; + if (newCls) { line.styleClasses = newCls; } + else if (oldCls) { line.styleClasses = null; } + var ischange = !oldStyles || oldStyles.length != line.styles.length || + oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass); + for (var i = 0; !ischange && i < oldStyles.length; ++i) { ischange = oldStyles[i] != line.styles[i]; } + if (ischange) { changedLines.push(doc.frontier); } + line.stateAfter = tooLong ? state : copyState(doc.mode, state); + } else { + if (line.text.length <= cm.options.maxHighlightLength) + { processLine(cm, line.text, state); } + line.stateAfter = doc.frontier % 5 == 0 ? copyState(doc.mode, state) : null; + } + ++doc.frontier; + if (+new Date > end) { + startWorker(cm, cm.options.workDelay); + return true + } + }); + if (changedLines.length) { runInOp(cm, function () { + for (var i = 0; i < changedLines.length; i++) + { regLineChange(cm, changedLines[i], "text"); } + }); } +} + +// DISPLAY DRAWING + +var DisplayUpdate = function(cm, viewport, force) { + var display = cm.display; + + this.viewport = viewport; + // Store some values that we'll need later (but don't want to force a relayout for) + this.visible = visibleLines(display, cm.doc, viewport); + this.editorIsHidden = !display.wrapper.offsetWidth; + this.wrapperHeight = display.wrapper.clientHeight; + this.wrapperWidth = display.wrapper.clientWidth; + this.oldDisplayWidth = displayWidth(cm); + this.force = force; + this.dims = getDimensions(cm); + this.events = []; +}; + +DisplayUpdate.prototype.signal = function (emitter, type) { + if (hasHandler(emitter, type)) + { this.events.push(arguments); } +}; +DisplayUpdate.prototype.finish = function () { + var this$1 = this; + + for (var i = 0; i < this.events.length; i++) + { signal.apply(null, this$1.events[i]); } +}; + +function maybeClipScrollbars(cm) { + var display = cm.display; + if (!display.scrollbarsClipped && display.scroller.offsetWidth) { + display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth; + display.heightForcer.style.height = scrollGap(cm) + "px"; + display.sizer.style.marginBottom = -display.nativeBarWidth + "px"; + display.sizer.style.borderRightWidth = scrollGap(cm) + "px"; + display.scrollbarsClipped = true; + } +} + +// Does the actual updating of the line display. Bails out +// (returning false) when there is nothing to be done and forced is +// false. +function updateDisplayIfNeeded(cm, update) { + var display = cm.display, doc = cm.doc; + + if (update.editorIsHidden) { + resetView(cm); + return false + } + + // Bail out if the visible area is already rendered and nothing changed. + if (!update.force && + update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo && + (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) && + display.renderedView == display.view && countDirtyView(cm) == 0) + { return false } + + if (maybeUpdateLineNumberWidth(cm)) { + resetView(cm); + update.dims = getDimensions(cm); + } + + // Compute a suitable new viewport (from & to) + var end = doc.first + doc.size; + var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first); + var to = Math.min(end, update.visible.to + cm.options.viewportMargin); + if (display.viewFrom < from && from - display.viewFrom < 20) { from = Math.max(doc.first, display.viewFrom); } + if (display.viewTo > to && display.viewTo - to < 20) { to = Math.min(end, display.viewTo); } + if (sawCollapsedSpans) { + from = visualLineNo(cm.doc, from); + to = visualLineEndNo(cm.doc, to); + } + + var different = from != display.viewFrom || to != display.viewTo || + display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth; + adjustView(cm, from, to); + + display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom)); + // Position the mover div to align with the current scroll position + cm.display.mover.style.top = display.viewOffset + "px"; + + var toUpdate = countDirtyView(cm); + if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view && + (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo)) + { return false } + + // For big changes, we hide the enclosing element during the + // update, since that speeds up the operations on most browsers. + var focused = activeElt(); + if (toUpdate > 4) { display.lineDiv.style.display = "none"; } + patchDisplay(cm, display.updateLineNumbers, update.dims); + if (toUpdate > 4) { display.lineDiv.style.display = ""; } + display.renderedView = display.view; + // There might have been a widget with a focused element that got + // hidden or updated, if so re-focus it. + if (focused && activeElt() != focused && focused.offsetHeight) { focused.focus(); } + + // Prevent selection and cursors from interfering with the scroll + // width and height. + removeChildren(display.cursorDiv); + removeChildren(display.selectionDiv); + display.gutters.style.height = display.sizer.style.minHeight = 0; + + if (different) { + display.lastWrapHeight = update.wrapperHeight; + display.lastWrapWidth = update.wrapperWidth; + startWorker(cm, 400); + } + + display.updateLineNumbers = null; + + return true +} + +function postUpdateDisplay(cm, update) { + var viewport = update.viewport; + + for (var first = true;; first = false) { + if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) { + // Clip forced viewport to actual scrollable area. + if (viewport && viewport.top != null) + { viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)}; } + // Updated line heights might result in the drawn area not + // actually covering the viewport. Keep looping until it does. + update.visible = visibleLines(cm.display, cm.doc, viewport); + if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo) + { break } + } + if (!updateDisplayIfNeeded(cm, update)) { break } + updateHeightsInViewport(cm); + var barMeasure = measureForScrollbars(cm); + updateSelection(cm); + updateScrollbars(cm, barMeasure); + setDocumentHeight(cm, barMeasure); + } + + update.signal(cm, "update", cm); + if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) { + update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo); + cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo; + } +} + +function updateDisplaySimple(cm, viewport) { + var update = new DisplayUpdate(cm, viewport); + if (updateDisplayIfNeeded(cm, update)) { + updateHeightsInViewport(cm); + postUpdateDisplay(cm, update); + var barMeasure = measureForScrollbars(cm); + updateSelection(cm); + updateScrollbars(cm, barMeasure); + setDocumentHeight(cm, barMeasure); + update.finish(); + } +} + +// Sync the actual display DOM structure with display.view, removing +// nodes for lines that are no longer in view, and creating the ones +// that are not there yet, and updating the ones that are out of +// date. +function patchDisplay(cm, updateNumbersFrom, dims) { + var display = cm.display, lineNumbers = cm.options.lineNumbers; + var container = display.lineDiv, cur = container.firstChild; + + function rm(node) { + var next = node.nextSibling; + // Works around a throw-scroll bug in OS X Webkit + if (webkit && mac && cm.display.currentWheelTarget == node) + { node.style.display = "none"; } + else + { node.parentNode.removeChild(node); } + return next + } + + var view = display.view, lineN = display.viewFrom; + // Loop over the elements in the view, syncing cur (the DOM nodes + // in display.lineDiv) with the view as we go. + for (var i = 0; i < view.length; i++) { + var lineView = view[i]; + if (lineView.hidden) { + } else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet + var node = buildLineElement(cm, lineView, lineN, dims); + container.insertBefore(node, cur); + } else { // Already drawn + while (cur != lineView.node) { cur = rm(cur); } + var updateNumber = lineNumbers && updateNumbersFrom != null && + updateNumbersFrom <= lineN && lineView.lineNumber; + if (lineView.changes) { + if (indexOf(lineView.changes, "gutter") > -1) { updateNumber = false; } + updateLineForChanges(cm, lineView, lineN, dims); + } + if (updateNumber) { + removeChildren(lineView.lineNumber); + lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN))); + } + cur = lineView.node.nextSibling; + } + lineN += lineView.size; + } + while (cur) { cur = rm(cur); } +} + +function updateGutterSpace(cm) { + var width = cm.display.gutters.offsetWidth; + cm.display.sizer.style.marginLeft = width + "px"; +} + +function setDocumentHeight(cm, measure) { + cm.display.sizer.style.minHeight = measure.docHeight + "px"; + cm.display.heightForcer.style.top = measure.docHeight + "px"; + cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "px"; +} + +// Rebuild the gutter elements, ensure the margin to the left of the +// code matches their width. +function updateGutters(cm) { + var gutters = cm.display.gutters, specs = cm.options.gutters; + removeChildren(gutters); + var i = 0; + for (; i < specs.length; ++i) { + var gutterClass = specs[i]; + var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass)); + if (gutterClass == "CodeMirror-linenumbers") { + cm.display.lineGutter = gElt; + gElt.style.width = (cm.display.lineNumWidth || 1) + "px"; + } + } + gutters.style.display = i ? "" : "none"; + updateGutterSpace(cm); +} + +// Make sure the gutters options contains the element +// "CodeMirror-linenumbers" when the lineNumbers option is true. +function setGuttersForLineNumbers(options) { + var found = indexOf(options.gutters, "CodeMirror-linenumbers"); + if (found == -1 && options.lineNumbers) { + options.gutters = options.gutters.concat(["CodeMirror-linenumbers"]); + } else if (found > -1 && !options.lineNumbers) { + options.gutters = options.gutters.slice(0); + options.gutters.splice(found, 1); + } +} + +// Selection objects are immutable. A new one is created every time +// the selection changes. A selection is one or more non-overlapping +// (and non-touching) ranges, sorted, and an integer that indicates +// which one is the primary selection (the one that's scrolled into +// view, that getCursor returns, etc). +var Selection = function(ranges, primIndex) { + this.ranges = ranges; + this.primIndex = primIndex; +}; + +Selection.prototype.primary = function () { return this.ranges[this.primIndex] }; + +Selection.prototype.equals = function (other) { + var this$1 = this; + + if (other == this) { return true } + if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) { return false } + for (var i = 0; i < this.ranges.length; i++) { + var here = this$1.ranges[i], there = other.ranges[i]; + if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) { return false } + } + return true +}; + +Selection.prototype.deepCopy = function () { + var this$1 = this; + + var out = []; + for (var i = 0; i < this.ranges.length; i++) + { out[i] = new Range(copyPos(this$1.ranges[i].anchor), copyPos(this$1.ranges[i].head)); } + return new Selection(out, this.primIndex) +}; + +Selection.prototype.somethingSelected = function () { + var this$1 = this; + + for (var i = 0; i < this.ranges.length; i++) + { if (!this$1.ranges[i].empty()) { return true } } + return false +}; + +Selection.prototype.contains = function (pos, end) { + var this$1 = this; + + if (!end) { end = pos; } + for (var i = 0; i < this.ranges.length; i++) { + var range = this$1.ranges[i]; + if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0) + { return i } + } + return -1 +}; + +var Range = function(anchor, head) { + this.anchor = anchor; this.head = head; +}; + +Range.prototype.from = function () { return minPos(this.anchor, this.head) }; +Range.prototype.to = function () { return maxPos(this.anchor, this.head) }; +Range.prototype.empty = function () { return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch }; + +// Take an unsorted, potentially overlapping set of ranges, and +// build a selection out of it. 'Consumes' ranges array (modifying +// it). +function normalizeSelection(ranges, primIndex) { + var prim = ranges[primIndex]; + ranges.sort(function (a, b) { return cmp(a.from(), b.from()); }); + primIndex = indexOf(ranges, prim); + for (var i = 1; i < ranges.length; i++) { + var cur = ranges[i], prev = ranges[i - 1]; + if (cmp(prev.to(), cur.from()) >= 0) { + var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to()); + var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head; + if (i <= primIndex) { --primIndex; } + ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to)); + } + } + return new Selection(ranges, primIndex) +} + +function simpleSelection(anchor, head) { + return new Selection([new Range(anchor, head || anchor)], 0) +} + +// Compute the position of the end of a change (its 'to' property +// refers to the pre-change end). +function changeEnd(change) { + if (!change.text) { return change.to } + return Pos(change.from.line + change.text.length - 1, + lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0)) +} + +// Adjust a position to refer to the post-change position of the +// same text, or the end of the change if the change covers it. +function adjustForChange(pos, change) { + if (cmp(pos, change.from) < 0) { return pos } + if (cmp(pos, change.to) <= 0) { return changeEnd(change) } + + var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch; + if (pos.line == change.to.line) { ch += changeEnd(change).ch - change.to.ch; } + return Pos(line, ch) +} + +function computeSelAfterChange(doc, change) { + var out = []; + for (var i = 0; i < doc.sel.ranges.length; i++) { + var range = doc.sel.ranges[i]; + out.push(new Range(adjustForChange(range.anchor, change), + adjustForChange(range.head, change))); + } + return normalizeSelection(out, doc.sel.primIndex) +} + +function offsetPos(pos, old, nw) { + if (pos.line == old.line) + { return Pos(nw.line, pos.ch - old.ch + nw.ch) } + else + { return Pos(nw.line + (pos.line - old.line), pos.ch) } +} + +// Used by replaceSelections to allow moving the selection to the +// start or around the replaced test. Hint may be "start" or "around". +function computeReplacedSel(doc, changes, hint) { + var out = []; + var oldPrev = Pos(doc.first, 0), newPrev = oldPrev; + for (var i = 0; i < changes.length; i++) { + var change = changes[i]; + var from = offsetPos(change.from, oldPrev, newPrev); + var to = offsetPos(changeEnd(change), oldPrev, newPrev); + oldPrev = change.to; + newPrev = to; + if (hint == "around") { + var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0; + out[i] = new Range(inv ? to : from, inv ? from : to); + } else { + out[i] = new Range(from, from); + } + } + return new Selection(out, doc.sel.primIndex) +} + +// Used to get the editor into a consistent state again when options change. + +function loadMode(cm) { + cm.doc.mode = getMode(cm.options, cm.doc.modeOption); + resetModeState(cm); +} + +function resetModeState(cm) { + cm.doc.iter(function (line) { + if (line.stateAfter) { line.stateAfter = null; } + if (line.styles) { line.styles = null; } + }); + cm.doc.frontier = cm.doc.first; + startWorker(cm, 100); + cm.state.modeGen++; + if (cm.curOp) { regChange(cm); } +} + +// DOCUMENT DATA STRUCTURE + +// By default, updates that start and end at the beginning of a line +// are treated specially, in order to make the association of line +// widgets and marker elements with the text behave more intuitive. +function isWholeLineUpdate(doc, change) { + return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" && + (!doc.cm || doc.cm.options.wholeLineUpdateBefore) +} + +// Perform a change on the document data structure. +function updateDoc(doc, change, markedSpans, estimateHeight$$1) { + function spansFor(n) {return markedSpans ? markedSpans[n] : null} + function update(line, text, spans) { + updateLine(line, text, spans, estimateHeight$$1); + signalLater(line, "change", line, change); + } + function linesFor(start, end) { + var result = []; + for (var i = start; i < end; ++i) + { result.push(new Line(text[i], spansFor(i), estimateHeight$$1)); } + return result + } + + var from = change.from, to = change.to, text = change.text; + var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line); + var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line; + + // Adjust the line structure + if (change.full) { + doc.insert(0, linesFor(0, text.length)); + doc.remove(text.length, doc.size - text.length); + } else if (isWholeLineUpdate(doc, change)) { + // This is a whole-line replace. Treated specially to make + // sure line objects move the way they are supposed to. + var added = linesFor(0, text.length - 1); + update(lastLine, lastLine.text, lastSpans); + if (nlines) { doc.remove(from.line, nlines); } + if (added.length) { doc.insert(from.line, added); } + } else if (firstLine == lastLine) { + if (text.length == 1) { + update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans); + } else { + var added$1 = linesFor(1, text.length - 1); + added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight$$1)); + update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); + doc.insert(from.line + 1, added$1); + } + } else if (text.length == 1) { + update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0)); + doc.remove(from.line + 1, nlines); + } else { + update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); + update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans); + var added$2 = linesFor(1, text.length - 1); + if (nlines > 1) { doc.remove(from.line + 1, nlines - 1); } + doc.insert(from.line + 1, added$2); + } + + signalLater(doc, "change", doc, change); +} + +// Call f for all linked documents. +function linkedDocs(doc, f, sharedHistOnly) { + function propagate(doc, skip, sharedHist) { + if (doc.linked) { for (var i = 0; i < doc.linked.length; ++i) { + var rel = doc.linked[i]; + if (rel.doc == skip) { continue } + var shared = sharedHist && rel.sharedHist; + if (sharedHistOnly && !shared) { continue } + f(rel.doc, shared); + propagate(rel.doc, doc, shared); + } } + } + propagate(doc, null, true); +} + +// Attach a document to an editor. +function attachDoc(cm, doc) { + if (doc.cm) { throw new Error("This document is already in use.") } + cm.doc = doc; + doc.cm = cm; + estimateLineHeights(cm); + loadMode(cm); + setDirectionClass(cm); + if (!cm.options.lineWrapping) { findMaxLine(cm); } + cm.options.mode = doc.modeOption; + regChange(cm); +} + +function setDirectionClass(cm) { + (cm.doc.direction == "rtl" ? addClass : rmClass)(cm.display.lineDiv, "CodeMirror-rtl"); +} + +function directionChanged(cm) { + runInOp(cm, function () { + setDirectionClass(cm); + regChange(cm); + }); +} + +function History(startGen) { + // Arrays of change events and selections. Doing something adds an + // event to done and clears undo. Undoing moves events from done + // to undone, redoing moves them in the other direction. + this.done = []; this.undone = []; + this.undoDepth = Infinity; + // Used to track when changes can be merged into a single undo + // event + this.lastModTime = this.lastSelTime = 0; + this.lastOp = this.lastSelOp = null; + this.lastOrigin = this.lastSelOrigin = null; + // Used by the isClean() method + this.generation = this.maxGeneration = startGen || 1; +} + +// Create a history change event from an updateDoc-style change +// object. +function historyChangeFromChange(doc, change) { + var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)}; + attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); + linkedDocs(doc, function (doc) { return attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true); + return histChange +} + +// Pop all selection events off the end of a history array. Stop at +// a change event. +function clearSelectionEvents(array) { + while (array.length) { + var last = lst(array); + if (last.ranges) { array.pop(); } + else { break } + } +} + +// Find the top change event in the history. Pop off selection +// events that are in the way. +function lastChangeEvent(hist, force) { + if (force) { + clearSelectionEvents(hist.done); + return lst(hist.done) + } else if (hist.done.length && !lst(hist.done).ranges) { + return lst(hist.done) + } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) { + hist.done.pop(); + return lst(hist.done) + } +} + +// Register a change in the history. Merges changes that are within +// a single operation, or are close together with an origin that +// allows merging (starting with "+") into a single event. +function addChangeToHistory(doc, change, selAfter, opId) { + var hist = doc.history; + hist.undone.length = 0; + var time = +new Date, cur; + var last; + + if ((hist.lastOp == opId || + hist.lastOrigin == change.origin && change.origin && + ((change.origin.charAt(0) == "+" && doc.cm && hist.lastModTime > time - doc.cm.options.historyEventDelay) || + change.origin.charAt(0) == "*")) && + (cur = lastChangeEvent(hist, hist.lastOp == opId))) { + // Merge this change into the last event + last = lst(cur.changes); + if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) { + // Optimized case for simple insertion -- don't want to add + // new changesets for every character typed + last.to = changeEnd(change); + } else { + // Add new sub-event + cur.changes.push(historyChangeFromChange(doc, change)); + } + } else { + // Can not be merged, start a new event. + var before = lst(hist.done); + if (!before || !before.ranges) + { pushSelectionToHistory(doc.sel, hist.done); } + cur = {changes: [historyChangeFromChange(doc, change)], + generation: hist.generation}; + hist.done.push(cur); + while (hist.done.length > hist.undoDepth) { + hist.done.shift(); + if (!hist.done[0].ranges) { hist.done.shift(); } + } + } + hist.done.push(selAfter); + hist.generation = ++hist.maxGeneration; + hist.lastModTime = hist.lastSelTime = time; + hist.lastOp = hist.lastSelOp = opId; + hist.lastOrigin = hist.lastSelOrigin = change.origin; + + if (!last) { signal(doc, "historyAdded"); } +} + +function selectionEventCanBeMerged(doc, origin, prev, sel) { + var ch = origin.charAt(0); + return ch == "*" || + ch == "+" && + prev.ranges.length == sel.ranges.length && + prev.somethingSelected() == sel.somethingSelected() && + new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500) +} + +// Called whenever the selection changes, sets the new selection as +// the pending selection in the history, and pushes the old pending +// selection into the 'done' array when it was significantly +// different (in number of selected ranges, emptiness, or time). +function addSelectionToHistory(doc, sel, opId, options) { + var hist = doc.history, origin = options && options.origin; + + // A new event is started when the previous origin does not match + // the current, or the origins don't allow matching. Origins + // starting with * are always merged, those starting with + are + // merged when similar and close together in time. + if (opId == hist.lastSelOp || + (origin && hist.lastSelOrigin == origin && + (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin || + selectionEventCanBeMerged(doc, origin, lst(hist.done), sel)))) + { hist.done[hist.done.length - 1] = sel; } + else + { pushSelectionToHistory(sel, hist.done); } + + hist.lastSelTime = +new Date; + hist.lastSelOrigin = origin; + hist.lastSelOp = opId; + if (options && options.clearRedo !== false) + { clearSelectionEvents(hist.undone); } +} + +function pushSelectionToHistory(sel, dest) { + var top = lst(dest); + if (!(top && top.ranges && top.equals(sel))) + { dest.push(sel); } +} + +// Used to store marked span information in the history. +function attachLocalSpans(doc, change, from, to) { + var existing = change["spans_" + doc.id], n = 0; + doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) { + if (line.markedSpans) + { (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans; } + ++n; + }); +} + +// When un/re-doing restores text containing marked spans, those +// that have been explicitly cleared should not be restored. +function removeClearedSpans(spans) { + if (!spans) { return null } + var out; + for (var i = 0; i < spans.length; ++i) { + if (spans[i].marker.explicitlyCleared) { if (!out) { out = spans.slice(0, i); } } + else if (out) { out.push(spans[i]); } + } + return !out ? spans : out.length ? out : null +} + +// Retrieve and filter the old marked spans stored in a change event. +function getOldSpans(doc, change) { + var found = change["spans_" + doc.id]; + if (!found) { return null } + var nw = []; + for (var i = 0; i < change.text.length; ++i) + { nw.push(removeClearedSpans(found[i])); } + return nw +} + +// Used for un/re-doing changes from the history. Combines the +// result of computing the existing spans with the set of spans that +// existed in the history (so that deleting around a span and then +// undoing brings back the span). +function mergeOldSpans(doc, change) { + var old = getOldSpans(doc, change); + var stretched = stretchSpansOverChange(doc, change); + if (!old) { return stretched } + if (!stretched) { return old } + + for (var i = 0; i < old.length; ++i) { + var oldCur = old[i], stretchCur = stretched[i]; + if (oldCur && stretchCur) { + spans: for (var j = 0; j < stretchCur.length; ++j) { + var span = stretchCur[j]; + for (var k = 0; k < oldCur.length; ++k) + { if (oldCur[k].marker == span.marker) { continue spans } } + oldCur.push(span); + } + } else if (stretchCur) { + old[i] = stretchCur; + } + } + return old +} + +// Used both to provide a JSON-safe object in .getHistory, and, when +// detaching a document, to split the history in two +function copyHistoryArray(events, newGroup, instantiateSel) { + var copy = []; + for (var i = 0; i < events.length; ++i) { + var event = events[i]; + if (event.ranges) { + copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event); + continue + } + var changes = event.changes, newChanges = []; + copy.push({changes: newChanges}); + for (var j = 0; j < changes.length; ++j) { + var change = changes[j], m = (void 0); + newChanges.push({from: change.from, to: change.to, text: change.text}); + if (newGroup) { for (var prop in change) { if (m = prop.match(/^spans_(\d+)$/)) { + if (indexOf(newGroup, Number(m[1])) > -1) { + lst(newChanges)[prop] = change[prop]; + delete change[prop]; + } + } } } + } + } + return copy +} + +// The 'scroll' parameter given to many of these indicated whether +// the new cursor position should be scrolled into view after +// modifying the selection. + +// If shift is held or the extend flag is set, extends a range to +// include a given position (and optionally a second position). +// Otherwise, simply returns the range between the given positions. +// Used for cursor motion and such. +function extendRange(doc, range, head, other) { + if (doc.cm && doc.cm.display.shift || doc.extend) { + var anchor = range.anchor; + if (other) { + var posBefore = cmp(head, anchor) < 0; + if (posBefore != (cmp(other, anchor) < 0)) { + anchor = head; + head = other; + } else if (posBefore != (cmp(head, other) < 0)) { + head = other; + } + } + return new Range(anchor, head) + } else { + return new Range(other || head, head) + } +} + +// Extend the primary selection range, discard the rest. +function extendSelection(doc, head, other, options) { + setSelection(doc, new Selection([extendRange(doc, doc.sel.primary(), head, other)], 0), options); +} + +// Extend all selections (pos is an array of selections with length +// equal the number of selections) +function extendSelections(doc, heads, options) { + var out = []; + for (var i = 0; i < doc.sel.ranges.length; i++) + { out[i] = extendRange(doc, doc.sel.ranges[i], heads[i], null); } + var newSel = normalizeSelection(out, doc.sel.primIndex); + setSelection(doc, newSel, options); +} + +// Updates a single range in the selection. +function replaceOneSelection(doc, i, range, options) { + var ranges = doc.sel.ranges.slice(0); + ranges[i] = range; + setSelection(doc, normalizeSelection(ranges, doc.sel.primIndex), options); +} + +// Reset the selection to a single range. +function setSimpleSelection(doc, anchor, head, options) { + setSelection(doc, simpleSelection(anchor, head), options); +} + +// Give beforeSelectionChange handlers a change to influence a +// selection update. +function filterSelectionChange(doc, sel, options) { + var obj = { + ranges: sel.ranges, + update: function(ranges) { + var this$1 = this; + + this.ranges = []; + for (var i = 0; i < ranges.length; i++) + { this$1.ranges[i] = new Range(clipPos(doc, ranges[i].anchor), + clipPos(doc, ranges[i].head)); } + }, + origin: options && options.origin + }; + signal(doc, "beforeSelectionChange", doc, obj); + if (doc.cm) { signal(doc.cm, "beforeSelectionChange", doc.cm, obj); } + if (obj.ranges != sel.ranges) { return normalizeSelection(obj.ranges, obj.ranges.length - 1) } + else { return sel } +} + +function setSelectionReplaceHistory(doc, sel, options) { + var done = doc.history.done, last = lst(done); + if (last && last.ranges) { + done[done.length - 1] = sel; + setSelectionNoUndo(doc, sel, options); + } else { + setSelection(doc, sel, options); + } +} + +// Set a new selection. +function setSelection(doc, sel, options) { + setSelectionNoUndo(doc, sel, options); + addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options); +} + +function setSelectionNoUndo(doc, sel, options) { + if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange")) + { sel = filterSelectionChange(doc, sel, options); } + + var bias = options && options.bias || + (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1); + setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true)); + + if (!(options && options.scroll === false) && doc.cm) + { ensureCursorVisible(doc.cm); } +} + +function setSelectionInner(doc, sel) { + if (sel.equals(doc.sel)) { return } + + doc.sel = sel; + + if (doc.cm) { + doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = true; + signalCursorActivity(doc.cm); + } + signalLater(doc, "cursorActivity", doc); +} + +// Verify that the selection does not partially select any atomic +// marked ranges. +function reCheckSelection(doc) { + setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false), sel_dontScroll); +} + +// Return a selection that does not partially select any atomic +// ranges. +function skipAtomicInSelection(doc, sel, bias, mayClear) { + var out; + for (var i = 0; i < sel.ranges.length; i++) { + var range = sel.ranges[i]; + var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i]; + var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear); + var newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear); + if (out || newAnchor != range.anchor || newHead != range.head) { + if (!out) { out = sel.ranges.slice(0, i); } + out[i] = new Range(newAnchor, newHead); + } + } + return out ? normalizeSelection(out, sel.primIndex) : sel +} + +function skipAtomicInner(doc, pos, oldPos, dir, mayClear) { + var line = getLine(doc, pos.line); + if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) { + var sp = line.markedSpans[i], m = sp.marker; + if ((sp.from == null || (m.inclusiveLeft ? sp.from <= pos.ch : sp.from < pos.ch)) && + (sp.to == null || (m.inclusiveRight ? sp.to >= pos.ch : sp.to > pos.ch))) { + if (mayClear) { + signal(m, "beforeCursorEnter"); + if (m.explicitlyCleared) { + if (!line.markedSpans) { break } + else {--i; continue} + } + } + if (!m.atomic) { continue } + + if (oldPos) { + var near = m.find(dir < 0 ? 1 : -1), diff = (void 0); + if (dir < 0 ? m.inclusiveRight : m.inclusiveLeft) + { near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null); } + if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0)) + { return skipAtomicInner(doc, near, pos, dir, mayClear) } + } + + var far = m.find(dir < 0 ? -1 : 1); + if (dir < 0 ? m.inclusiveLeft : m.inclusiveRight) + { far = movePos(doc, far, dir, far.line == pos.line ? line : null); } + return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null + } + } } + return pos +} + +// Ensure a given position is not inside an atomic range. +function skipAtomic(doc, pos, oldPos, bias, mayClear) { + var dir = bias || 1; + var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) || + (!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) || + skipAtomicInner(doc, pos, oldPos, -dir, mayClear) || + (!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true)); + if (!found) { + doc.cantEdit = true; + return Pos(doc.first, 0) + } + return found +} + +function movePos(doc, pos, dir, line) { + if (dir < 0 && pos.ch == 0) { + if (pos.line > doc.first) { return clipPos(doc, Pos(pos.line - 1)) } + else { return null } + } else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) { + if (pos.line < doc.first + doc.size - 1) { return Pos(pos.line + 1, 0) } + else { return null } + } else { + return new Pos(pos.line, pos.ch + dir) + } +} + +function selectAll(cm) { + cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll); +} + +// UPDATING + +// Allow "beforeChange" event handlers to influence a change +function filterChange(doc, change, update) { + var obj = { + canceled: false, + from: change.from, + to: change.to, + text: change.text, + origin: change.origin, + cancel: function () { return obj.canceled = true; } + }; + if (update) { obj.update = function (from, to, text, origin) { + if (from) { obj.from = clipPos(doc, from); } + if (to) { obj.to = clipPos(doc, to); } + if (text) { obj.text = text; } + if (origin !== undefined) { obj.origin = origin; } + }; } + signal(doc, "beforeChange", doc, obj); + if (doc.cm) { signal(doc.cm, "beforeChange", doc.cm, obj); } + + if (obj.canceled) { return null } + return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin} +} + +// Apply a change to a document, and add it to the document's +// history, and propagating it to all linked documents. +function makeChange(doc, change, ignoreReadOnly) { + if (doc.cm) { + if (!doc.cm.curOp) { return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly) } + if (doc.cm.state.suppressEdits) { return } + } + + if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) { + change = filterChange(doc, change, true); + if (!change) { return } + } + + // Possibly split or suppress the update based on the presence + // of read-only spans in its range. + var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to); + if (split) { + for (var i = split.length - 1; i >= 0; --i) + { makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text}); } + } else { + makeChangeInner(doc, change); + } +} + +function makeChangeInner(doc, change) { + if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) { return } + var selAfter = computeSelAfterChange(doc, change); + addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN); + + makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change)); + var rebased = []; + + linkedDocs(doc, function (doc, sharedHist) { + if (!sharedHist && indexOf(rebased, doc.history) == -1) { + rebaseHist(doc.history, change); + rebased.push(doc.history); + } + makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change)); + }); +} + +// Revert a change stored in a document's history. +function makeChangeFromHistory(doc, type, allowSelectionOnly) { + if (doc.cm && doc.cm.state.suppressEdits && !allowSelectionOnly) { return } + + var hist = doc.history, event, selAfter = doc.sel; + var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done; + + // Verify that there is a useable event (so that ctrl-z won't + // needlessly clear selection events) + var i = 0; + for (; i < source.length; i++) { + event = source[i]; + if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges) + { break } + } + if (i == source.length) { return } + hist.lastOrigin = hist.lastSelOrigin = null; + + for (;;) { + event = source.pop(); + if (event.ranges) { + pushSelectionToHistory(event, dest); + if (allowSelectionOnly && !event.equals(doc.sel)) { + setSelection(doc, event, {clearRedo: false}); + return + } + selAfter = event; + } + else { break } + } + + // Build up a reverse change object to add to the opposite history + // stack (redo when undoing, and vice versa). + var antiChanges = []; + pushSelectionToHistory(selAfter, dest); + dest.push({changes: antiChanges, generation: hist.generation}); + hist.generation = event.generation || ++hist.maxGeneration; + + var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange"); + + var loop = function ( i ) { + var change = event.changes[i]; + change.origin = type; + if (filter && !filterChange(doc, change, false)) { + source.length = 0; + return {} + } + + antiChanges.push(historyChangeFromChange(doc, change)); + + var after = i ? computeSelAfterChange(doc, change) : lst(source); + makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change)); + if (!i && doc.cm) { doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)}); } + var rebased = []; + + // Propagate to the linked documents + linkedDocs(doc, function (doc, sharedHist) { + if (!sharedHist && indexOf(rebased, doc.history) == -1) { + rebaseHist(doc.history, change); + rebased.push(doc.history); + } + makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change)); + }); + }; + + for (var i$1 = event.changes.length - 1; i$1 >= 0; --i$1) { + var returned = loop( i$1 ); + + if ( returned ) return returned.v; + } +} + +// Sub-views need their line numbers shifted when text is added +// above or below them in the parent document. +function shiftDoc(doc, distance) { + if (distance == 0) { return } + doc.first += distance; + doc.sel = new Selection(map(doc.sel.ranges, function (range) { return new Range( + Pos(range.anchor.line + distance, range.anchor.ch), + Pos(range.head.line + distance, range.head.ch) + ); }), doc.sel.primIndex); + if (doc.cm) { + regChange(doc.cm, doc.first, doc.first - distance, distance); + for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++) + { regLineChange(doc.cm, l, "gutter"); } + } +} + +// More lower-level change function, handling only a single document +// (not linked ones). +function makeChangeSingleDoc(doc, change, selAfter, spans) { + if (doc.cm && !doc.cm.curOp) + { return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans) } + + if (change.to.line < doc.first) { + shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line)); + return + } + if (change.from.line > doc.lastLine()) { return } + + // Clip the change to the size of this doc + if (change.from.line < doc.first) { + var shift = change.text.length - 1 - (doc.first - change.from.line); + shiftDoc(doc, shift); + change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch), + text: [lst(change.text)], origin: change.origin}; + } + var last = doc.lastLine(); + if (change.to.line > last) { + change = {from: change.from, to: Pos(last, getLine(doc, last).text.length), + text: [change.text[0]], origin: change.origin}; + } + + change.removed = getBetween(doc, change.from, change.to); + + if (!selAfter) { selAfter = computeSelAfterChange(doc, change); } + if (doc.cm) { makeChangeSingleDocInEditor(doc.cm, change, spans); } + else { updateDoc(doc, change, spans); } + setSelectionNoUndo(doc, selAfter, sel_dontScroll); +} + +// Handle the interaction of a change to a document with the editor +// that this document is part of. +function makeChangeSingleDocInEditor(cm, change, spans) { + var doc = cm.doc, display = cm.display, from = change.from, to = change.to; + + var recomputeMaxLength = false, checkWidthStart = from.line; + if (!cm.options.lineWrapping) { + checkWidthStart = lineNo(visualLine(getLine(doc, from.line))); + doc.iter(checkWidthStart, to.line + 1, function (line) { + if (line == display.maxLine) { + recomputeMaxLength = true; + return true + } + }); + } + + if (doc.sel.contains(change.from, change.to) > -1) + { signalCursorActivity(cm); } + + updateDoc(doc, change, spans, estimateHeight(cm)); + + if (!cm.options.lineWrapping) { + doc.iter(checkWidthStart, from.line + change.text.length, function (line) { + var len = lineLength(line); + if (len > display.maxLineLength) { + display.maxLine = line; + display.maxLineLength = len; + display.maxLineChanged = true; + recomputeMaxLength = false; + } + }); + if (recomputeMaxLength) { cm.curOp.updateMaxLine = true; } + } + + // Adjust frontier, schedule worker + doc.frontier = Math.min(doc.frontier, from.line); + startWorker(cm, 400); + + var lendiff = change.text.length - (to.line - from.line) - 1; + // Remember that these lines changed, for updating the display + if (change.full) + { regChange(cm); } + else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change)) + { regLineChange(cm, from.line, "text"); } + else + { regChange(cm, from.line, to.line + 1, lendiff); } + + var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change"); + if (changeHandler || changesHandler) { + var obj = { + from: from, to: to, + text: change.text, + removed: change.removed, + origin: change.origin + }; + if (changeHandler) { signalLater(cm, "change", cm, obj); } + if (changesHandler) { (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj); } + } + cm.display.selForContextMenu = null; +} + +function replaceRange(doc, code, from, to, origin) { + if (!to) { to = from; } + if (cmp(to, from) < 0) { var tmp = to; to = from; from = tmp; } + if (typeof code == "string") { code = doc.splitLines(code); } + makeChange(doc, {from: from, to: to, text: code, origin: origin}); +} + +// Rebasing/resetting history to deal with externally-sourced changes + +function rebaseHistSelSingle(pos, from, to, diff) { + if (to < pos.line) { + pos.line += diff; + } else if (from < pos.line) { + pos.line = from; + pos.ch = 0; + } +} + +// Tries to rebase an array of history events given a change in the +// document. If the change touches the same lines as the event, the +// event, and everything 'behind' it, is discarded. If the change is +// before the event, the event's positions are updated. Uses a +// copy-on-write scheme for the positions, to avoid having to +// reallocate them all on every rebase, but also avoid problems with +// shared position objects being unsafely updated. +function rebaseHistArray(array, from, to, diff) { + for (var i = 0; i < array.length; ++i) { + var sub = array[i], ok = true; + if (sub.ranges) { + if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; } + for (var j = 0; j < sub.ranges.length; j++) { + rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff); + rebaseHistSelSingle(sub.ranges[j].head, from, to, diff); + } + continue + } + for (var j$1 = 0; j$1 < sub.changes.length; ++j$1) { + var cur = sub.changes[j$1]; + if (to < cur.from.line) { + cur.from = Pos(cur.from.line + diff, cur.from.ch); + cur.to = Pos(cur.to.line + diff, cur.to.ch); + } else if (from <= cur.to.line) { + ok = false; + break + } + } + if (!ok) { + array.splice(0, i + 1); + i = 0; + } + } +} + +function rebaseHist(hist, change) { + var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1; + rebaseHistArray(hist.done, from, to, diff); + rebaseHistArray(hist.undone, from, to, diff); +} + +// Utility for applying a change to a line by handle or number, +// returning the number and optionally registering the line as +// changed. +function changeLine(doc, handle, changeType, op) { + var no = handle, line = handle; + if (typeof handle == "number") { line = getLine(doc, clipLine(doc, handle)); } + else { no = lineNo(handle); } + if (no == null) { return null } + if (op(line, no) && doc.cm) { regLineChange(doc.cm, no, changeType); } + return line +} + +// The document is represented as a BTree consisting of leaves, with +// chunk of lines in them, and branches, with up to ten leaves or +// other branch nodes below them. The top node is always a branch +// node, and is the document object itself (meaning it has +// additional methods and properties). +// +// All nodes have parent links. The tree is used both to go from +// line numbers to line objects, and to go from objects to numbers. +// It also indexes by height, and is used to convert between height +// and line object, and to find the total height of the document. +// +// See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html + +var LeafChunk = function(lines) { + var this$1 = this; + + this.lines = lines; + this.parent = null; + var height = 0; + for (var i = 0; i < lines.length; ++i) { + lines[i].parent = this$1; + height += lines[i].height; + } + this.height = height; +}; + +LeafChunk.prototype.chunkSize = function () { return this.lines.length }; + +// Remove the n lines at offset 'at'. +LeafChunk.prototype.removeInner = function (at, n) { + var this$1 = this; + + for (var i = at, e = at + n; i < e; ++i) { + var line = this$1.lines[i]; + this$1.height -= line.height; + cleanUpLine(line); + signalLater(line, "delete"); + } + this.lines.splice(at, n); +}; + +// Helper used to collapse a small branch into a single leaf. +LeafChunk.prototype.collapse = function (lines) { + lines.push.apply(lines, this.lines); +}; + +// Insert the given array of lines at offset 'at', count them as +// having the given height. +LeafChunk.prototype.insertInner = function (at, lines, height) { + var this$1 = this; + + this.height += height; + this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at)); + for (var i = 0; i < lines.length; ++i) { lines[i].parent = this$1; } +}; + +// Used to iterate over a part of the tree. +LeafChunk.prototype.iterN = function (at, n, op) { + var this$1 = this; + + for (var e = at + n; at < e; ++at) + { if (op(this$1.lines[at])) { return true } } +}; + +var BranchChunk = function(children) { + var this$1 = this; + + this.children = children; + var size = 0, height = 0; + for (var i = 0; i < children.length; ++i) { + var ch = children[i]; + size += ch.chunkSize(); height += ch.height; + ch.parent = this$1; + } + this.size = size; + this.height = height; + this.parent = null; +}; + +BranchChunk.prototype.chunkSize = function () { return this.size }; + +BranchChunk.prototype.removeInner = function (at, n) { + var this$1 = this; + + this.size -= n; + for (var i = 0; i < this.children.length; ++i) { + var child = this$1.children[i], sz = child.chunkSize(); + if (at < sz) { + var rm = Math.min(n, sz - at), oldHeight = child.height; + child.removeInner(at, rm); + this$1.height -= oldHeight - child.height; + if (sz == rm) { this$1.children.splice(i--, 1); child.parent = null; } + if ((n -= rm) == 0) { break } + at = 0; + } else { at -= sz; } + } + // If the result is smaller than 25 lines, ensure that it is a + // single leaf node. + if (this.size - n < 25 && + (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) { + var lines = []; + this.collapse(lines); + this.children = [new LeafChunk(lines)]; + this.children[0].parent = this; + } +}; + +BranchChunk.prototype.collapse = function (lines) { + var this$1 = this; + + for (var i = 0; i < this.children.length; ++i) { this$1.children[i].collapse(lines); } +}; + +BranchChunk.prototype.insertInner = function (at, lines, height) { + var this$1 = this; + + this.size += lines.length; + this.height += height; + for (var i = 0; i < this.children.length; ++i) { + var child = this$1.children[i], sz = child.chunkSize(); + if (at <= sz) { + child.insertInner(at, lines, height); + if (child.lines && child.lines.length > 50) { + // To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced. + // Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest. + var remaining = child.lines.length % 25 + 25; + for (var pos = remaining; pos < child.lines.length;) { + var leaf = new LeafChunk(child.lines.slice(pos, pos += 25)); + child.height -= leaf.height; + this$1.children.splice(++i, 0, leaf); + leaf.parent = this$1; + } + child.lines = child.lines.slice(0, remaining); + this$1.maybeSpill(); + } + break + } + at -= sz; + } +}; + +// When a node has grown, check whether it should be split. +BranchChunk.prototype.maybeSpill = function () { + if (this.children.length <= 10) { return } + var me = this; + do { + var spilled = me.children.splice(me.children.length - 5, 5); + var sibling = new BranchChunk(spilled); + if (!me.parent) { // Become the parent node + var copy = new BranchChunk(me.children); + copy.parent = me; + me.children = [copy, sibling]; + me = copy; + } else { + me.size -= sibling.size; + me.height -= sibling.height; + var myIndex = indexOf(me.parent.children, me); + me.parent.children.splice(myIndex + 1, 0, sibling); + } + sibling.parent = me.parent; + } while (me.children.length > 10) + me.parent.maybeSpill(); +}; + +BranchChunk.prototype.iterN = function (at, n, op) { + var this$1 = this; + + for (var i = 0; i < this.children.length; ++i) { + var child = this$1.children[i], sz = child.chunkSize(); + if (at < sz) { + var used = Math.min(n, sz - at); + if (child.iterN(at, used, op)) { return true } + if ((n -= used) == 0) { break } + at = 0; + } else { at -= sz; } + } +}; + +// Line widgets are block elements displayed above or below a line. + +var LineWidget = function(doc, node, options) { + var this$1 = this; + + if (options) { for (var opt in options) { if (options.hasOwnProperty(opt)) + { this$1[opt] = options[opt]; } } } + this.doc = doc; + this.node = node; +}; + +LineWidget.prototype.clear = function () { + var this$1 = this; + + var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line); + if (no == null || !ws) { return } + for (var i = 0; i < ws.length; ++i) { if (ws[i] == this$1) { ws.splice(i--, 1); } } + if (!ws.length) { line.widgets = null; } + var height = widgetHeight(this); + updateLineHeight(line, Math.max(0, line.height - height)); + if (cm) { + runInOp(cm, function () { + adjustScrollWhenAboveVisible(cm, line, -height); + regLineChange(cm, no, "widget"); + }); + signalLater(cm, "lineWidgetCleared", cm, this, no); + } +}; + +LineWidget.prototype.changed = function () { + var this$1 = this; + + var oldH = this.height, cm = this.doc.cm, line = this.line; + this.height = null; + var diff = widgetHeight(this) - oldH; + if (!diff) { return } + updateLineHeight(line, line.height + diff); + if (cm) { + runInOp(cm, function () { + cm.curOp.forceUpdate = true; + adjustScrollWhenAboveVisible(cm, line, diff); + signalLater(cm, "lineWidgetChanged", cm, this$1, lineNo(line)); + }); + } +}; +eventMixin(LineWidget); + +function adjustScrollWhenAboveVisible(cm, line, diff) { + if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop)) + { addToScrollPos(cm, null, diff); } +} + +function addLineWidget(doc, handle, node, options) { + var widget = new LineWidget(doc, node, options); + var cm = doc.cm; + if (cm && widget.noHScroll) { cm.display.alignWidgets = true; } + changeLine(doc, handle, "widget", function (line) { + var widgets = line.widgets || (line.widgets = []); + if (widget.insertAt == null) { widgets.push(widget); } + else { widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget); } + widget.line = line; + if (cm && !lineIsHidden(doc, line)) { + var aboveVisible = heightAtLine(line) < doc.scrollTop; + updateLineHeight(line, line.height + widgetHeight(widget)); + if (aboveVisible) { addToScrollPos(cm, null, widget.height); } + cm.curOp.forceUpdate = true; + } + return true + }); + signalLater(cm, "lineWidgetAdded", cm, widget, typeof handle == "number" ? handle : lineNo(handle)); + return widget +} + +// TEXTMARKERS + +// Created with markText and setBookmark methods. A TextMarker is a +// handle that can be used to clear or find a marked position in the +// document. Line objects hold arrays (markedSpans) containing +// {from, to, marker} object pointing to such marker objects, and +// indicating that such a marker is present on that line. Multiple +// lines may point to the same marker when it spans across lines. +// The spans will have null for their from/to properties when the +// marker continues beyond the start/end of the line. Markers have +// links back to the lines they currently touch. + +// Collapsed markers have unique ids, in order to be able to order +// them, which is needed for uniquely determining an outer marker +// when they overlap (they may nest, but not partially overlap). +var nextMarkerId = 0; + +var TextMarker = function(doc, type) { + this.lines = []; + this.type = type; + this.doc = doc; + this.id = ++nextMarkerId; +}; + +// Clear the marker. +TextMarker.prototype.clear = function () { + var this$1 = this; + + if (this.explicitlyCleared) { return } + var cm = this.doc.cm, withOp = cm && !cm.curOp; + if (withOp) { startOperation(cm); } + if (hasHandler(this, "clear")) { + var found = this.find(); + if (found) { signalLater(this, "clear", found.from, found.to); } + } + var min = null, max = null; + for (var i = 0; i < this.lines.length; ++i) { + var line = this$1.lines[i]; + var span = getMarkedSpanFor(line.markedSpans, this$1); + if (cm && !this$1.collapsed) { regLineChange(cm, lineNo(line), "text"); } + else if (cm) { + if (span.to != null) { max = lineNo(line); } + if (span.from != null) { min = lineNo(line); } + } + line.markedSpans = removeMarkedSpan(line.markedSpans, span); + if (span.from == null && this$1.collapsed && !lineIsHidden(this$1.doc, line) && cm) + { updateLineHeight(line, textHeight(cm.display)); } + } + if (cm && this.collapsed && !cm.options.lineWrapping) { for (var i$1 = 0; i$1 < this.lines.length; ++i$1) { + var visual = visualLine(this$1.lines[i$1]), len = lineLength(visual); + if (len > cm.display.maxLineLength) { + cm.display.maxLine = visual; + cm.display.maxLineLength = len; + cm.display.maxLineChanged = true; + } + } } + + if (min != null && cm && this.collapsed) { regChange(cm, min, max + 1); } + this.lines.length = 0; + this.explicitlyCleared = true; + if (this.atomic && this.doc.cantEdit) { + this.doc.cantEdit = false; + if (cm) { reCheckSelection(cm.doc); } + } + if (cm) { signalLater(cm, "markerCleared", cm, this, min, max); } + if (withOp) { endOperation(cm); } + if (this.parent) { this.parent.clear(); } +}; + +// Find the position of the marker in the document. Returns a {from, +// to} object by default. Side can be passed to get a specific side +// -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the +// Pos objects returned contain a line object, rather than a line +// number (used to prevent looking up the same line twice). +TextMarker.prototype.find = function (side, lineObj) { + var this$1 = this; + + if (side == null && this.type == "bookmark") { side = 1; } + var from, to; + for (var i = 0; i < this.lines.length; ++i) { + var line = this$1.lines[i]; + var span = getMarkedSpanFor(line.markedSpans, this$1); + if (span.from != null) { + from = Pos(lineObj ? line : lineNo(line), span.from); + if (side == -1) { return from } + } + if (span.to != null) { + to = Pos(lineObj ? line : lineNo(line), span.to); + if (side == 1) { return to } + } + } + return from && {from: from, to: to} +}; + +// Signals that the marker's widget changed, and surrounding layout +// should be recomputed. +TextMarker.prototype.changed = function () { + var this$1 = this; + + var pos = this.find(-1, true), widget = this, cm = this.doc.cm; + if (!pos || !cm) { return } + runInOp(cm, function () { + var line = pos.line, lineN = lineNo(pos.line); + var view = findViewForLine(cm, lineN); + if (view) { + clearLineMeasurementCacheFor(view); + cm.curOp.selectionChanged = cm.curOp.forceUpdate = true; + } + cm.curOp.updateMaxLine = true; + if (!lineIsHidden(widget.doc, line) && widget.height != null) { + var oldHeight = widget.height; + widget.height = null; + var dHeight = widgetHeight(widget) - oldHeight; + if (dHeight) + { updateLineHeight(line, line.height + dHeight); } + } + signalLater(cm, "markerChanged", cm, this$1); + }); +}; + +TextMarker.prototype.attachLine = function (line) { + if (!this.lines.length && this.doc.cm) { + var op = this.doc.cm.curOp; + if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1) + { (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this); } + } + this.lines.push(line); +}; + +TextMarker.prototype.detachLine = function (line) { + this.lines.splice(indexOf(this.lines, line), 1); + if (!this.lines.length && this.doc.cm) { + var op = this.doc.cm.curOp;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this); + } +}; +eventMixin(TextMarker); + +// Create a marker, wire it up to the right lines, and +function markText(doc, from, to, options, type) { + // Shared markers (across linked documents) are handled separately + // (markTextShared will call out to this again, once per + // document). + if (options && options.shared) { return markTextShared(doc, from, to, options, type) } + // Ensure we are in an operation. + if (doc.cm && !doc.cm.curOp) { return operation(doc.cm, markText)(doc, from, to, options, type) } + + var marker = new TextMarker(doc, type), diff = cmp(from, to); + if (options) { copyObj(options, marker, false); } + // Don't connect empty markers unless clearWhenEmpty is false + if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false) + { return marker } + if (marker.replacedWith) { + // Showing up as a widget implies collapsed (widget replaces text) + marker.collapsed = true; + marker.widgetNode = eltP("span", [marker.replacedWith], "CodeMirror-widget"); + if (!options.handleMouseEvents) { marker.widgetNode.setAttribute("cm-ignore-events", "true"); } + if (options.insertLeft) { marker.widgetNode.insertLeft = true; } + } + if (marker.collapsed) { + if (conflictingCollapsedRange(doc, from.line, from, to, marker) || + from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker)) + { throw new Error("Inserting collapsed marker partially overlapping an existing one") } + seeCollapsedSpans(); + } + + if (marker.addToHistory) + { addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN); } + + var curLine = from.line, cm = doc.cm, updateMaxLine; + doc.iter(curLine, to.line + 1, function (line) { + if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine) + { updateMaxLine = true; } + if (marker.collapsed && curLine != from.line) { updateLineHeight(line, 0); } + addMarkedSpan(line, new MarkedSpan(marker, + curLine == from.line ? from.ch : null, + curLine == to.line ? to.ch : null)); + ++curLine; + }); + // lineIsHidden depends on the presence of the spans, so needs a second pass + if (marker.collapsed) { doc.iter(from.line, to.line + 1, function (line) { + if (lineIsHidden(doc, line)) { updateLineHeight(line, 0); } + }); } + + if (marker.clearOnEnter) { on(marker, "beforeCursorEnter", function () { return marker.clear(); }); } + + if (marker.readOnly) { + seeReadOnlySpans(); + if (doc.history.done.length || doc.history.undone.length) + { doc.clearHistory(); } + } + if (marker.collapsed) { + marker.id = ++nextMarkerId; + marker.atomic = true; + } + if (cm) { + // Sync editor state + if (updateMaxLine) { cm.curOp.updateMaxLine = true; } + if (marker.collapsed) + { regChange(cm, from.line, to.line + 1); } + else if (marker.className || marker.title || marker.startStyle || marker.endStyle || marker.css) + { for (var i = from.line; i <= to.line; i++) { regLineChange(cm, i, "text"); } } + if (marker.atomic) { reCheckSelection(cm.doc); } + signalLater(cm, "markerAdded", cm, marker); + } + return marker +} + +// SHARED TEXTMARKERS + +// A shared marker spans multiple linked documents. It is +// implemented as a meta-marker-object controlling multiple normal +// markers. +var SharedTextMarker = function(markers, primary) { + var this$1 = this; + + this.markers = markers; + this.primary = primary; + for (var i = 0; i < markers.length; ++i) + { markers[i].parent = this$1; } +}; + +SharedTextMarker.prototype.clear = function () { + var this$1 = this; + + if (this.explicitlyCleared) { return } + this.explicitlyCleared = true; + for (var i = 0; i < this.markers.length; ++i) + { this$1.markers[i].clear(); } + signalLater(this, "clear"); +}; + +SharedTextMarker.prototype.find = function (side, lineObj) { + return this.primary.find(side, lineObj) +}; +eventMixin(SharedTextMarker); + +function markTextShared(doc, from, to, options, type) { + options = copyObj(options); + options.shared = false; + var markers = [markText(doc, from, to, options, type)], primary = markers[0]; + var widget = options.widgetNode; + linkedDocs(doc, function (doc) { + if (widget) { options.widgetNode = widget.cloneNode(true); } + markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type)); + for (var i = 0; i < doc.linked.length; ++i) + { if (doc.linked[i].isParent) { return } } + primary = lst(markers); + }); + return new SharedTextMarker(markers, primary) +} + +function findSharedMarkers(doc) { + return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), function (m) { return m.parent; }) +} + +function copySharedMarkers(doc, markers) { + for (var i = 0; i < markers.length; i++) { + var marker = markers[i], pos = marker.find(); + var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to); + if (cmp(mFrom, mTo)) { + var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type); + marker.markers.push(subMark); + subMark.parent = marker; + } + } +} + +function detachSharedMarkers(markers) { + var loop = function ( i ) { + var marker = markers[i], linked = [marker.primary.doc]; + linkedDocs(marker.primary.doc, function (d) { return linked.push(d); }); + for (var j = 0; j < marker.markers.length; j++) { + var subMarker = marker.markers[j]; + if (indexOf(linked, subMarker.doc) == -1) { + subMarker.parent = null; + marker.markers.splice(j--, 1); + } + } + }; + + for (var i = 0; i < markers.length; i++) loop( i ); +} + +var nextDocId = 0; +var Doc = function(text, mode, firstLine, lineSep, direction) { + if (!(this instanceof Doc)) { return new Doc(text, mode, firstLine, lineSep, direction) } + if (firstLine == null) { firstLine = 0; } + + BranchChunk.call(this, [new LeafChunk([new Line("", null)])]); + this.first = firstLine; + this.scrollTop = this.scrollLeft = 0; + this.cantEdit = false; + this.cleanGeneration = 1; + this.frontier = firstLine; + var start = Pos(firstLine, 0); + this.sel = simpleSelection(start); + this.history = new History(null); + this.id = ++nextDocId; + this.modeOption = mode; + this.lineSep = lineSep; + this.direction = (direction == "rtl") ? "rtl" : "ltr"; + this.extend = false; + + if (typeof text == "string") { text = this.splitLines(text); } + updateDoc(this, {from: start, to: start, text: text}); + setSelection(this, simpleSelection(start), sel_dontScroll); +}; + +Doc.prototype = createObj(BranchChunk.prototype, { + constructor: Doc, + // Iterate over the document. Supports two forms -- with only one + // argument, it calls that for each line in the document. With + // three, it iterates over the range given by the first two (with + // the second being non-inclusive). + iter: function(from, to, op) { + if (op) { this.iterN(from - this.first, to - from, op); } + else { this.iterN(this.first, this.first + this.size, from); } + }, + + // Non-public interface for adding and removing lines. + insert: function(at, lines) { + var height = 0; + for (var i = 0; i < lines.length; ++i) { height += lines[i].height; } + this.insertInner(at - this.first, lines, height); + }, + remove: function(at, n) { this.removeInner(at - this.first, n); }, + + // From here, the methods are part of the public interface. Most + // are also available from CodeMirror (editor) instances. + + getValue: function(lineSep) { + var lines = getLines(this, this.first, this.first + this.size); + if (lineSep === false) { return lines } + return lines.join(lineSep || this.lineSeparator()) + }, + setValue: docMethodOp(function(code) { + var top = Pos(this.first, 0), last = this.first + this.size - 1; + makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length), + text: this.splitLines(code), origin: "setValue", full: true}, true); + setSelection(this, simpleSelection(top)); + }), + replaceRange: function(code, from, to, origin) { + from = clipPos(this, from); + to = to ? clipPos(this, to) : from; + replaceRange(this, code, from, to, origin); + }, + getRange: function(from, to, lineSep) { + var lines = getBetween(this, clipPos(this, from), clipPos(this, to)); + if (lineSep === false) { return lines } + return lines.join(lineSep || this.lineSeparator()) + }, + + getLine: function(line) {var l = this.getLineHandle(line); return l && l.text}, + + getLineHandle: function(line) {if (isLine(this, line)) { return getLine(this, line) }}, + getLineNumber: function(line) {return lineNo(line)}, + + getLineHandleVisualStart: function(line) { + if (typeof line == "number") { line = getLine(this, line); } + return visualLine(line) + }, + + lineCount: function() {return this.size}, + firstLine: function() {return this.first}, + lastLine: function() {return this.first + this.size - 1}, + + clipPos: function(pos) {return clipPos(this, pos)}, + + getCursor: function(start) { + var range$$1 = this.sel.primary(), pos; + if (start == null || start == "head") { pos = range$$1.head; } + else if (start == "anchor") { pos = range$$1.anchor; } + else if (start == "end" || start == "to" || start === false) { pos = range$$1.to(); } + else { pos = range$$1.from(); } + return pos + }, + listSelections: function() { return this.sel.ranges }, + somethingSelected: function() {return this.sel.somethingSelected()}, + + setCursor: docMethodOp(function(line, ch, options) { + setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options); + }), + setSelection: docMethodOp(function(anchor, head, options) { + setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options); + }), + extendSelection: docMethodOp(function(head, other, options) { + extendSelection(this, clipPos(this, head), other && clipPos(this, other), options); + }), + extendSelections: docMethodOp(function(heads, options) { + extendSelections(this, clipPosArray(this, heads), options); + }), + extendSelectionsBy: docMethodOp(function(f, options) { + var heads = map(this.sel.ranges, f); + extendSelections(this, clipPosArray(this, heads), options); + }), + setSelections: docMethodOp(function(ranges, primary, options) { + var this$1 = this; + + if (!ranges.length) { return } + var out = []; + for (var i = 0; i < ranges.length; i++) + { out[i] = new Range(clipPos(this$1, ranges[i].anchor), + clipPos(this$1, ranges[i].head)); } + if (primary == null) { primary = Math.min(ranges.length - 1, this.sel.primIndex); } + setSelection(this, normalizeSelection(out, primary), options); + }), + addSelection: docMethodOp(function(anchor, head, options) { + var ranges = this.sel.ranges.slice(0); + ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor))); + setSelection(this, normalizeSelection(ranges, ranges.length - 1), options); + }), + + getSelection: function(lineSep) { + var this$1 = this; + + var ranges = this.sel.ranges, lines; + for (var i = 0; i < ranges.length; i++) { + var sel = getBetween(this$1, ranges[i].from(), ranges[i].to()); + lines = lines ? lines.concat(sel) : sel; + } + if (lineSep === false) { return lines } + else { return lines.join(lineSep || this.lineSeparator()) } + }, + getSelections: function(lineSep) { + var this$1 = this; + + var parts = [], ranges = this.sel.ranges; + for (var i = 0; i < ranges.length; i++) { + var sel = getBetween(this$1, ranges[i].from(), ranges[i].to()); + if (lineSep !== false) { sel = sel.join(lineSep || this$1.lineSeparator()); } + parts[i] = sel; + } + return parts + }, + replaceSelection: function(code, collapse, origin) { + var dup = []; + for (var i = 0; i < this.sel.ranges.length; i++) + { dup[i] = code; } + this.replaceSelections(dup, collapse, origin || "+input"); + }, + replaceSelections: docMethodOp(function(code, collapse, origin) { + var this$1 = this; + + var changes = [], sel = this.sel; + for (var i = 0; i < sel.ranges.length; i++) { + var range$$1 = sel.ranges[i]; + changes[i] = {from: range$$1.from(), to: range$$1.to(), text: this$1.splitLines(code[i]), origin: origin}; + } + var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse); + for (var i$1 = changes.length - 1; i$1 >= 0; i$1--) + { makeChange(this$1, changes[i$1]); } + if (newSel) { setSelectionReplaceHistory(this, newSel); } + else if (this.cm) { ensureCursorVisible(this.cm); } + }), + undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}), + redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}), + undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}), + redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}), + + setExtending: function(val) {this.extend = val;}, + getExtending: function() {return this.extend}, + + historySize: function() { + var hist = this.history, done = 0, undone = 0; + for (var i = 0; i < hist.done.length; i++) { if (!hist.done[i].ranges) { ++done; } } + for (var i$1 = 0; i$1 < hist.undone.length; i$1++) { if (!hist.undone[i$1].ranges) { ++undone; } } + return {undo: done, redo: undone} + }, + clearHistory: function() {this.history = new History(this.history.maxGeneration);}, + + markClean: function() { + this.cleanGeneration = this.changeGeneration(true); + }, + changeGeneration: function(forceSplit) { + if (forceSplit) + { this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null; } + return this.history.generation + }, + isClean: function (gen) { + return this.history.generation == (gen || this.cleanGeneration) + }, + + getHistory: function() { + return {done: copyHistoryArray(this.history.done), + undone: copyHistoryArray(this.history.undone)} + }, + setHistory: function(histData) { + var hist = this.history = new History(this.history.maxGeneration); + hist.done = copyHistoryArray(histData.done.slice(0), null, true); + hist.undone = copyHistoryArray(histData.undone.slice(0), null, true); + }, + + setGutterMarker: docMethodOp(function(line, gutterID, value) { + return changeLine(this, line, "gutter", function (line) { + var markers = line.gutterMarkers || (line.gutterMarkers = {}); + markers[gutterID] = value; + if (!value && isEmpty(markers)) { line.gutterMarkers = null; } + return true + }) + }), + + clearGutter: docMethodOp(function(gutterID) { + var this$1 = this; + + this.iter(function (line) { + if (line.gutterMarkers && line.gutterMarkers[gutterID]) { + changeLine(this$1, line, "gutter", function () { + line.gutterMarkers[gutterID] = null; + if (isEmpty(line.gutterMarkers)) { line.gutterMarkers = null; } + return true + }); + } + }); + }), + + lineInfo: function(line) { + var n; + if (typeof line == "number") { + if (!isLine(this, line)) { return null } + n = line; + line = getLine(this, line); + if (!line) { return null } + } else { + n = lineNo(line); + if (n == null) { return null } + } + return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers, + textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass, + widgets: line.widgets} + }, + + addLineClass: docMethodOp(function(handle, where, cls) { + return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) { + var prop = where == "text" ? "textClass" + : where == "background" ? "bgClass" + : where == "gutter" ? "gutterClass" : "wrapClass"; + if (!line[prop]) { line[prop] = cls; } + else if (classTest(cls).test(line[prop])) { return false } + else { line[prop] += " " + cls; } + return true + }) + }), + removeLineClass: docMethodOp(function(handle, where, cls) { + return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) { + var prop = where == "text" ? "textClass" + : where == "background" ? "bgClass" + : where == "gutter" ? "gutterClass" : "wrapClass"; + var cur = line[prop]; + if (!cur) { return false } + else if (cls == null) { line[prop] = null; } + else { + var found = cur.match(classTest(cls)); + if (!found) { return false } + var end = found.index + found[0].length; + line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null; + } + return true + }) + }), + + addLineWidget: docMethodOp(function(handle, node, options) { + return addLineWidget(this, handle, node, options) + }), + removeLineWidget: function(widget) { widget.clear(); }, + + markText: function(from, to, options) { + return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range") + }, + setBookmark: function(pos, options) { + var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options), + insertLeft: options && options.insertLeft, + clearWhenEmpty: false, shared: options && options.shared, + handleMouseEvents: options && options.handleMouseEvents}; + pos = clipPos(this, pos); + return markText(this, pos, pos, realOpts, "bookmark") + }, + findMarksAt: function(pos) { + pos = clipPos(this, pos); + var markers = [], spans = getLine(this, pos.line).markedSpans; + if (spans) { for (var i = 0; i < spans.length; ++i) { + var span = spans[i]; + if ((span.from == null || span.from <= pos.ch) && + (span.to == null || span.to >= pos.ch)) + { markers.push(span.marker.parent || span.marker); } + } } + return markers + }, + findMarks: function(from, to, filter) { + from = clipPos(this, from); to = clipPos(this, to); + var found = [], lineNo$$1 = from.line; + this.iter(from.line, to.line + 1, function (line) { + var spans = line.markedSpans; + if (spans) { for (var i = 0; i < spans.length; i++) { + var span = spans[i]; + if (!(span.to != null && lineNo$$1 == from.line && from.ch >= span.to || + span.from == null && lineNo$$1 != from.line || + span.from != null && lineNo$$1 == to.line && span.from >= to.ch) && + (!filter || filter(span.marker))) + { found.push(span.marker.parent || span.marker); } + } } + ++lineNo$$1; + }); + return found + }, + getAllMarks: function() { + var markers = []; + this.iter(function (line) { + var sps = line.markedSpans; + if (sps) { for (var i = 0; i < sps.length; ++i) + { if (sps[i].from != null) { markers.push(sps[i].marker); } } } + }); + return markers + }, + + posFromIndex: function(off) { + var ch, lineNo$$1 = this.first, sepSize = this.lineSeparator().length; + this.iter(function (line) { + var sz = line.text.length + sepSize; + if (sz > off) { ch = off; return true } + off -= sz; + ++lineNo$$1; + }); + return clipPos(this, Pos(lineNo$$1, ch)) + }, + indexFromPos: function (coords) { + coords = clipPos(this, coords); + var index = coords.ch; + if (coords.line < this.first || coords.ch < 0) { return 0 } + var sepSize = this.lineSeparator().length; + this.iter(this.first, coords.line, function (line) { // iter aborts when callback returns a truthy value + index += line.text.length + sepSize; + }); + return index + }, + + copy: function(copyHistory) { + var doc = new Doc(getLines(this, this.first, this.first + this.size), + this.modeOption, this.first, this.lineSep, this.direction); + doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft; + doc.sel = this.sel; + doc.extend = false; + if (copyHistory) { + doc.history.undoDepth = this.history.undoDepth; + doc.setHistory(this.getHistory()); + } + return doc + }, + + linkedDoc: function(options) { + if (!options) { options = {}; } + var from = this.first, to = this.first + this.size; + if (options.from != null && options.from > from) { from = options.from; } + if (options.to != null && options.to < to) { to = options.to; } + var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep, this.direction); + if (options.sharedHist) { copy.history = this.history + ; }(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist}); + copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}]; + copySharedMarkers(copy, findSharedMarkers(this)); + return copy + }, + unlinkDoc: function(other) { + var this$1 = this; + + if (other instanceof CodeMirror$1) { other = other.doc; } + if (this.linked) { for (var i = 0; i < this.linked.length; ++i) { + var link = this$1.linked[i]; + if (link.doc != other) { continue } + this$1.linked.splice(i, 1); + other.unlinkDoc(this$1); + detachSharedMarkers(findSharedMarkers(this$1)); + break + } } + // If the histories were shared, split them again + if (other.history == this.history) { + var splitIds = [other.id]; + linkedDocs(other, function (doc) { return splitIds.push(doc.id); }, true); + other.history = new History(null); + other.history.done = copyHistoryArray(this.history.done, splitIds); + other.history.undone = copyHistoryArray(this.history.undone, splitIds); + } + }, + iterLinkedDocs: function(f) {linkedDocs(this, f);}, + + getMode: function() {return this.mode}, + getEditor: function() {return this.cm}, + + splitLines: function(str) { + if (this.lineSep) { return str.split(this.lineSep) } + return splitLinesAuto(str) + }, + lineSeparator: function() { return this.lineSep || "\n" }, + + setDirection: docMethodOp(function (dir) { + if (dir != "rtl") { dir = "ltr"; } + if (dir == this.direction) { return } + this.direction = dir; + this.iter(function (line) { return line.order = null; }); + if (this.cm) { directionChanged(this.cm); } + }) +}); + +// Public alias. +Doc.prototype.eachLine = Doc.prototype.iter; + +// Kludge to work around strange IE behavior where it'll sometimes +// re-fire a series of drag-related events right after the drop (#1551) +var lastDrop = 0; + +function onDrop(e) { + var cm = this; + clearDragCursor(cm); + if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) + { return } + e_preventDefault(e); + if (ie) { lastDrop = +new Date; } + var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files; + if (!pos || cm.isReadOnly()) { return } + // Might be a file drop, in which case we simply extract the text + // and insert it. + if (files && files.length && window.FileReader && window.File) { + var n = files.length, text = Array(n), read = 0; + var loadFile = function (file, i) { + if (cm.options.allowDropFileTypes && + indexOf(cm.options.allowDropFileTypes, file.type) == -1) + { return } + + var reader = new FileReader; + reader.onload = operation(cm, function () { + var content = reader.result; + if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) { content = ""; } + text[i] = content; + if (++read == n) { + pos = clipPos(cm.doc, pos); + var change = {from: pos, to: pos, + text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())), + origin: "paste"}; + makeChange(cm.doc, change); + setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change))); + } + }); + reader.readAsText(file); + }; + for (var i = 0; i < n; ++i) { loadFile(files[i], i); } + } else { // Normal drop + // Don't do a replace if the drop happened inside of the selected text. + if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) { + cm.state.draggingText(e); + // Ensure the editor is re-focused + setTimeout(function () { return cm.display.input.focus(); }, 20); + return + } + try { + var text$1 = e.dataTransfer.getData("Text"); + if (text$1) { + var selected; + if (cm.state.draggingText && !cm.state.draggingText.copy) + { selected = cm.listSelections(); } + setSelectionNoUndo(cm.doc, simpleSelection(pos, pos)); + if (selected) { for (var i$1 = 0; i$1 < selected.length; ++i$1) + { replaceRange(cm.doc, "", selected[i$1].anchor, selected[i$1].head, "drag"); } } + cm.replaceSelection(text$1, "around", "paste"); + cm.display.input.focus(); + } + } + catch(e){} + } +} + +function onDragStart(cm, e) { + if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return } + if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) { return } + + e.dataTransfer.setData("Text", cm.getSelection()); + e.dataTransfer.effectAllowed = "copyMove"; + + // Use dummy image instead of default browsers image. + // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there. + if (e.dataTransfer.setDragImage && !safari) { + var img = elt("img", null, null, "position: fixed; left: 0; top: 0;"); + img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=="; + if (presto) { + img.width = img.height = 1; + cm.display.wrapper.appendChild(img); + // Force a relayout, or Opera won't use our image for some obscure reason + img._top = img.offsetTop; + } + e.dataTransfer.setDragImage(img, 0, 0); + if (presto) { img.parentNode.removeChild(img); } + } +} + +function onDragOver(cm, e) { + var pos = posFromMouse(cm, e); + if (!pos) { return } + var frag = document.createDocumentFragment(); + drawSelectionCursor(cm, pos, frag); + if (!cm.display.dragCursor) { + cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors"); + cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv); + } + removeChildrenAndAdd(cm.display.dragCursor, frag); +} + +function clearDragCursor(cm) { + if (cm.display.dragCursor) { + cm.display.lineSpace.removeChild(cm.display.dragCursor); + cm.display.dragCursor = null; + } +} + +// These must be handled carefully, because naively registering a +// handler for each editor will cause the editors to never be +// garbage collected. + +function forEachCodeMirror(f) { + if (!document.body.getElementsByClassName) { return } + var byClass = document.body.getElementsByClassName("CodeMirror"); + for (var i = 0; i < byClass.length; i++) { + var cm = byClass[i].CodeMirror; + if (cm) { f(cm); } + } +} + +var globalsRegistered = false; +function ensureGlobalHandlers() { + if (globalsRegistered) { return } + registerGlobalHandlers(); + globalsRegistered = true; +} +function registerGlobalHandlers() { + // When the window resizes, we need to refresh active editors. + var resizeTimer; + on(window, "resize", function () { + if (resizeTimer == null) { resizeTimer = setTimeout(function () { + resizeTimer = null; + forEachCodeMirror(onResize); + }, 100); } + }); + // When the window loses focus, we want to show the editor as blurred + on(window, "blur", function () { return forEachCodeMirror(onBlur); }); +} +// Called when the window resizes +function onResize(cm) { + var d = cm.display; + if (d.lastWrapHeight == d.wrapper.clientHeight && d.lastWrapWidth == d.wrapper.clientWidth) + { return } + // Might be a text scaling operation, clear size caches. + d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null; + d.scrollbarsClipped = false; + cm.setSize(); +} + +var keyNames = { + 3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt", + 19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End", + 36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert", + 46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod", + 106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 127: "Delete", + 173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\", + 221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete", + 63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert" +}; + +// Number keys +for (var i = 0; i < 10; i++) { keyNames[i + 48] = keyNames[i + 96] = String(i); } +// Alphabetic keys +for (var i$1 = 65; i$1 <= 90; i$1++) { keyNames[i$1] = String.fromCharCode(i$1); } +// Function keys +for (var i$2 = 1; i$2 <= 12; i$2++) { keyNames[i$2 + 111] = keyNames[i$2 + 63235] = "F" + i$2; } + +var keyMap = {}; + +keyMap.basic = { + "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown", + "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown", + "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore", + "Tab": "defaultTab", "Shift-Tab": "indentAuto", + "Enter": "newlineAndIndent", "Insert": "toggleOverwrite", + "Esc": "singleSelection" +}; +// Note that the save and find-related commands aren't defined by +// default. User code or addons can define them. Unknown commands +// are simply ignored. +keyMap.pcDefault = { + "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo", + "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown", + "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd", + "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find", + "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll", + "Ctrl-[": "indentLess", "Ctrl-]": "indentMore", + "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection", + fallthrough: "basic" +}; +// Very basic readline/emacs-style bindings, which are standard on Mac. +keyMap.emacsy = { + "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown", + "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd", + "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore", + "Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars", + "Ctrl-O": "openLine" +}; +keyMap.macDefault = { + "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo", + "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft", + "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore", + "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find", + "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll", + "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight", + "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd", + fallthrough: ["basic", "emacsy"] +}; +keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault; + +// KEYMAP DISPATCH + +function normalizeKeyName(name) { + var parts = name.split(/-(?!$)/); + name = parts[parts.length - 1]; + var alt, ctrl, shift, cmd; + for (var i = 0; i < parts.length - 1; i++) { + var mod = parts[i]; + if (/^(cmd|meta|m)$/i.test(mod)) { cmd = true; } + else if (/^a(lt)?$/i.test(mod)) { alt = true; } + else if (/^(c|ctrl|control)$/i.test(mod)) { ctrl = true; } + else if (/^s(hift)?$/i.test(mod)) { shift = true; } + else { throw new Error("Unrecognized modifier name: " + mod) } + } + if (alt) { name = "Alt-" + name; } + if (ctrl) { name = "Ctrl-" + name; } + if (cmd) { name = "Cmd-" + name; } + if (shift) { name = "Shift-" + name; } + return name +} + +// This is a kludge to keep keymaps mostly working as raw objects +// (backwards compatibility) while at the same time support features +// like normalization and multi-stroke key bindings. It compiles a +// new normalized keymap, and then updates the old object to reflect +// this. +function normalizeKeyMap(keymap) { + var copy = {}; + for (var keyname in keymap) { if (keymap.hasOwnProperty(keyname)) { + var value = keymap[keyname]; + if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) { continue } + if (value == "...") { delete keymap[keyname]; continue } + + var keys = map(keyname.split(" "), normalizeKeyName); + for (var i = 0; i < keys.length; i++) { + var val = (void 0), name = (void 0); + if (i == keys.length - 1) { + name = keys.join(" "); + val = value; + } else { + name = keys.slice(0, i + 1).join(" "); + val = "..."; + } + var prev = copy[name]; + if (!prev) { copy[name] = val; } + else if (prev != val) { throw new Error("Inconsistent bindings for " + name) } + } + delete keymap[keyname]; + } } + for (var prop in copy) { keymap[prop] = copy[prop]; } + return keymap +} + +function lookupKey(key, map$$1, handle, context) { + map$$1 = getKeyMap(map$$1); + var found = map$$1.call ? map$$1.call(key, context) : map$$1[key]; + if (found === false) { return "nothing" } + if (found === "...") { return "multi" } + if (found != null && handle(found)) { return "handled" } + + if (map$$1.fallthrough) { + if (Object.prototype.toString.call(map$$1.fallthrough) != "[object Array]") + { return lookupKey(key, map$$1.fallthrough, handle, context) } + for (var i = 0; i < map$$1.fallthrough.length; i++) { + var result = lookupKey(key, map$$1.fallthrough[i], handle, context); + if (result) { return result } + } + } +} + +// Modifier key presses don't count as 'real' key presses for the +// purpose of keymap fallthrough. +function isModifierKey(value) { + var name = typeof value == "string" ? value : keyNames[value.keyCode]; + return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod" +} + +// Look up the name of a key as indicated by an event object. +function keyName(event, noShift) { + if (presto && event.keyCode == 34 && event["char"]) { return false } + var base = keyNames[event.keyCode], name = base; + if (name == null || event.altGraphKey) { return false } + if (event.altKey && base != "Alt") { name = "Alt-" + name; } + if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") { name = "Ctrl-" + name; } + if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Cmd") { name = "Cmd-" + name; } + if (!noShift && event.shiftKey && base != "Shift") { name = "Shift-" + name; } + return name +} + +function getKeyMap(val) { + return typeof val == "string" ? keyMap[val] : val +} + +// Helper for deleting text near the selection(s), used to implement +// backspace, delete, and similar functionality. +function deleteNearSelection(cm, compute) { + var ranges = cm.doc.sel.ranges, kill = []; + // Build up a set of ranges to kill first, merging overlapping + // ranges. + for (var i = 0; i < ranges.length; i++) { + var toKill = compute(ranges[i]); + while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) { + var replaced = kill.pop(); + if (cmp(replaced.from, toKill.from) < 0) { + toKill.from = replaced.from; + break + } + } + kill.push(toKill); + } + // Next, remove those actual ranges. + runInOp(cm, function () { + for (var i = kill.length - 1; i >= 0; i--) + { replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete"); } + ensureCursorVisible(cm); + }); +} + +// Commands are parameter-less actions that can be performed on an +// editor, mostly used for keybindings. +var commands = { + selectAll: selectAll, + singleSelection: function (cm) { return cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll); }, + killLine: function (cm) { return deleteNearSelection(cm, function (range) { + if (range.empty()) { + var len = getLine(cm.doc, range.head.line).text.length; + if (range.head.ch == len && range.head.line < cm.lastLine()) + { return {from: range.head, to: Pos(range.head.line + 1, 0)} } + else + { return {from: range.head, to: Pos(range.head.line, len)} } + } else { + return {from: range.from(), to: range.to()} + } + }); }, + deleteLine: function (cm) { return deleteNearSelection(cm, function (range) { return ({ + from: Pos(range.from().line, 0), + to: clipPos(cm.doc, Pos(range.to().line + 1, 0)) + }); }); }, + delLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { return ({ + from: Pos(range.from().line, 0), to: range.from() + }); }); }, + delWrappedLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { + var top = cm.charCoords(range.head, "div").top + 5; + var leftPos = cm.coordsChar({left: 0, top: top}, "div"); + return {from: leftPos, to: range.from()} + }); }, + delWrappedLineRight: function (cm) { return deleteNearSelection(cm, function (range) { + var top = cm.charCoords(range.head, "div").top + 5; + var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div"); + return {from: range.from(), to: rightPos } + }); }, + undo: function (cm) { return cm.undo(); }, + redo: function (cm) { return cm.redo(); }, + undoSelection: function (cm) { return cm.undoSelection(); }, + redoSelection: function (cm) { return cm.redoSelection(); }, + goDocStart: function (cm) { return cm.extendSelection(Pos(cm.firstLine(), 0)); }, + goDocEnd: function (cm) { return cm.extendSelection(Pos(cm.lastLine())); }, + goLineStart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStart(cm, range.head.line); }, + {origin: "+move", bias: 1} + ); }, + goLineStartSmart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStartSmart(cm, range.head); }, + {origin: "+move", bias: 1} + ); }, + goLineEnd: function (cm) { return cm.extendSelectionsBy(function (range) { return lineEnd(cm, range.head.line); }, + {origin: "+move", bias: -1} + ); }, + goLineRight: function (cm) { return cm.extendSelectionsBy(function (range) { + var top = cm.charCoords(range.head, "div").top + 5; + return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div") + }, sel_move); }, + goLineLeft: function (cm) { return cm.extendSelectionsBy(function (range) { + var top = cm.charCoords(range.head, "div").top + 5; + return cm.coordsChar({left: 0, top: top}, "div") + }, sel_move); }, + goLineLeftSmart: function (cm) { return cm.extendSelectionsBy(function (range) { + var top = cm.charCoords(range.head, "div").top + 5; + var pos = cm.coordsChar({left: 0, top: top}, "div"); + if (pos.ch < cm.getLine(pos.line).search(/\S/)) { return lineStartSmart(cm, range.head) } + return pos + }, sel_move); }, + goLineUp: function (cm) { return cm.moveV(-1, "line"); }, + goLineDown: function (cm) { return cm.moveV(1, "line"); }, + goPageUp: function (cm) { return cm.moveV(-1, "page"); }, + goPageDown: function (cm) { return cm.moveV(1, "page"); }, + goCharLeft: function (cm) { return cm.moveH(-1, "char"); }, + goCharRight: function (cm) { return cm.moveH(1, "char"); }, + goColumnLeft: function (cm) { return cm.moveH(-1, "column"); }, + goColumnRight: function (cm) { return cm.moveH(1, "column"); }, + goWordLeft: function (cm) { return cm.moveH(-1, "word"); }, + goGroupRight: function (cm) { return cm.moveH(1, "group"); }, + goGroupLeft: function (cm) { return cm.moveH(-1, "group"); }, + goWordRight: function (cm) { return cm.moveH(1, "word"); }, + delCharBefore: function (cm) { return cm.deleteH(-1, "char"); }, + delCharAfter: function (cm) { return cm.deleteH(1, "char"); }, + delWordBefore: function (cm) { return cm.deleteH(-1, "word"); }, + delWordAfter: function (cm) { return cm.deleteH(1, "word"); }, + delGroupBefore: function (cm) { return cm.deleteH(-1, "group"); }, + delGroupAfter: function (cm) { return cm.deleteH(1, "group"); }, + indentAuto: function (cm) { return cm.indentSelection("smart"); }, + indentMore: function (cm) { return cm.indentSelection("add"); }, + indentLess: function (cm) { return cm.indentSelection("subtract"); }, + insertTab: function (cm) { return cm.replaceSelection("\t"); }, + insertSoftTab: function (cm) { + var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize; + for (var i = 0; i < ranges.length; i++) { + var pos = ranges[i].from(); + var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize); + spaces.push(spaceStr(tabSize - col % tabSize)); + } + cm.replaceSelections(spaces); + }, + defaultTab: function (cm) { + if (cm.somethingSelected()) { cm.indentSelection("add"); } + else { cm.execCommand("insertTab"); } + }, + // Swap the two chars left and right of each selection's head. + // Move cursor behind the two swapped characters afterwards. + // + // Doesn't consider line feeds a character. + // Doesn't scan more than one line above to find a character. + // Doesn't do anything on an empty line. + // Doesn't do anything with non-empty selections. + transposeChars: function (cm) { return runInOp(cm, function () { + var ranges = cm.listSelections(), newSel = []; + for (var i = 0; i < ranges.length; i++) { + if (!ranges[i].empty()) { continue } + var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text; + if (line) { + if (cur.ch == line.length) { cur = new Pos(cur.line, cur.ch - 1); } + if (cur.ch > 0) { + cur = new Pos(cur.line, cur.ch + 1); + cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2), + Pos(cur.line, cur.ch - 2), cur, "+transpose"); + } else if (cur.line > cm.doc.first) { + var prev = getLine(cm.doc, cur.line - 1).text; + if (prev) { + cur = new Pos(cur.line, 1); + cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() + + prev.charAt(prev.length - 1), + Pos(cur.line - 1, prev.length - 1), cur, "+transpose"); + } + } + } + newSel.push(new Range(cur, cur)); + } + cm.setSelections(newSel); + }); }, + newlineAndIndent: function (cm) { return runInOp(cm, function () { + var sels = cm.listSelections(); + for (var i = sels.length - 1; i >= 0; i--) + { cm.replaceRange(cm.doc.lineSeparator(), sels[i].anchor, sels[i].head, "+input"); } + sels = cm.listSelections(); + for (var i$1 = 0; i$1 < sels.length; i$1++) + { cm.indentLine(sels[i$1].from().line, null, true); } + ensureCursorVisible(cm); + }); }, + openLine: function (cm) { return cm.replaceSelection("\n", "start"); }, + toggleOverwrite: function (cm) { return cm.toggleOverwrite(); } +}; + + +function lineStart(cm, lineN) { + var line = getLine(cm.doc, lineN); + var visual = visualLine(line); + if (visual != line) { lineN = lineNo(visual); } + return endOfLine(true, cm, visual, lineN, 1) +} +function lineEnd(cm, lineN) { + var line = getLine(cm.doc, lineN); + var visual = visualLineEnd(line); + if (visual != line) { lineN = lineNo(visual); } + return endOfLine(true, cm, line, lineN, -1) +} +function lineStartSmart(cm, pos) { + var start = lineStart(cm, pos.line); + var line = getLine(cm.doc, start.line); + var order = getOrder(line, cm.doc.direction); + if (!order || order[0].level == 0) { + var firstNonWS = Math.max(0, line.text.search(/\S/)); + var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch; + return Pos(start.line, inWS ? 0 : firstNonWS, start.sticky) + } + return start +} + +// Run a handler that was bound to a key. +function doHandleBinding(cm, bound, dropShift) { + if (typeof bound == "string") { + bound = commands[bound]; + if (!bound) { return false } + } + // Ensure previous input has been read, so that the handler sees a + // consistent view of the document + cm.display.input.ensurePolled(); + var prevShift = cm.display.shift, done = false; + try { + if (cm.isReadOnly()) { cm.state.suppressEdits = true; } + if (dropShift) { cm.display.shift = false; } + done = bound(cm) != Pass; + } finally { + cm.display.shift = prevShift; + cm.state.suppressEdits = false; + } + return done +} + +function lookupKeyForEditor(cm, name, handle) { + for (var i = 0; i < cm.state.keyMaps.length; i++) { + var result = lookupKey(name, cm.state.keyMaps[i], handle, cm); + if (result) { return result } + } + return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm)) + || lookupKey(name, cm.options.keyMap, handle, cm) +} + +var stopSeq = new Delayed; +function dispatchKey(cm, name, e, handle) { + var seq = cm.state.keySeq; + if (seq) { + if (isModifierKey(name)) { return "handled" } + stopSeq.set(50, function () { + if (cm.state.keySeq == seq) { + cm.state.keySeq = null; + cm.display.input.reset(); + } + }); + name = seq + " " + name; + } + var result = lookupKeyForEditor(cm, name, handle); + + if (result == "multi") + { cm.state.keySeq = name; } + if (result == "handled") + { signalLater(cm, "keyHandled", cm, name, e); } + + if (result == "handled" || result == "multi") { + e_preventDefault(e); + restartBlink(cm); + } + + if (seq && !result && /\'$/.test(name)) { + e_preventDefault(e); + return true + } + return !!result +} + +// Handle a key from the keydown event. +function handleKeyBinding(cm, e) { + var name = keyName(e, true); + if (!name) { return false } + + if (e.shiftKey && !cm.state.keySeq) { + // First try to resolve full name (including 'Shift-'). Failing + // that, see if there is a cursor-motion command (starting with + // 'go') bound to the keyname without 'Shift-'. + return dispatchKey(cm, "Shift-" + name, e, function (b) { return doHandleBinding(cm, b, true); }) + || dispatchKey(cm, name, e, function (b) { + if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion) + { return doHandleBinding(cm, b) } + }) + } else { + return dispatchKey(cm, name, e, function (b) { return doHandleBinding(cm, b); }) + } +} + +// Handle a key from the keypress event +function handleCharBinding(cm, e, ch) { + return dispatchKey(cm, "'" + ch + "'", e, function (b) { return doHandleBinding(cm, b, true); }) +} + +var lastStoppedKey = null; +function onKeyDown(e) { + var cm = this; + cm.curOp.focus = activeElt(); + if (signalDOMEvent(cm, e)) { return } + // IE does strange things with escape. + if (ie && ie_version < 11 && e.keyCode == 27) { e.returnValue = false; } + var code = e.keyCode; + cm.display.shift = code == 16 || e.shiftKey; + var handled = handleKeyBinding(cm, e); + if (presto) { + lastStoppedKey = handled ? code : null; + // Opera has no cut event... we try to at least catch the key combo + if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey)) + { cm.replaceSelection("", null, "cut"); } + } + + // Turn mouse into crosshair when Alt is held on Mac. + if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className)) + { showCrossHair(cm); } +} + +function showCrossHair(cm) { + var lineDiv = cm.display.lineDiv; + addClass(lineDiv, "CodeMirror-crosshair"); + + function up(e) { + if (e.keyCode == 18 || !e.altKey) { + rmClass(lineDiv, "CodeMirror-crosshair"); + off(document, "keyup", up); + off(document, "mouseover", up); + } + } + on(document, "keyup", up); + on(document, "mouseover", up); +} + +function onKeyUp(e) { + if (e.keyCode == 16) { this.doc.sel.shift = false; } + signalDOMEvent(this, e); +} + +function onKeyPress(e) { + var cm = this; + if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) { return } + var keyCode = e.keyCode, charCode = e.charCode; + if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return} + if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) { return } + var ch = String.fromCharCode(charCode == null ? keyCode : charCode); + // Some browsers fire keypress events for backspace + if (ch == "\x08") { return } + if (handleCharBinding(cm, e, ch)) { return } + cm.display.input.onKeyPress(e); +} + +// A mouse down can be a single click, double click, triple click, +// start of selection drag, start of text drag, new cursor +// (ctrl-click), rectangle drag (alt-drag), or xwin +// middle-click-paste. Or it might be a click on something we should +// not interfere with, such as a scrollbar or widget. +function onMouseDown(e) { + var cm = this, display = cm.display; + if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) { return } + display.input.ensurePolled(); + display.shift = e.shiftKey; + + if (eventInWidget(display, e)) { + if (!webkit) { + // Briefly turn off draggability, to allow widgets to do + // normal dragging things. + display.scroller.draggable = false; + setTimeout(function () { return display.scroller.draggable = true; }, 100); + } + return + } + if (clickInGutter(cm, e)) { return } + var start = posFromMouse(cm, e); + window.focus(); + + switch (e_button(e)) { + case 1: + // #3261: make sure, that we're not starting a second selection + if (cm.state.selectingText) + { cm.state.selectingText(e); } + else if (start) + { leftButtonDown(cm, e, start); } + else if (e_target(e) == display.scroller) + { e_preventDefault(e); } + break + case 2: + if (webkit) { cm.state.lastMiddleDown = +new Date; } + if (start) { extendSelection(cm.doc, start); } + setTimeout(function () { return display.input.focus(); }, 20); + e_preventDefault(e); + break + case 3: + if (captureRightClick) { onContextMenu(cm, e); } + else { delayBlurEvent(cm); } + break + } +} + +var lastClick; +var lastDoubleClick; +function leftButtonDown(cm, e, start) { + if (ie) { setTimeout(bind(ensureFocus, cm), 0); } + else { cm.curOp.focus = activeElt(); } + + var now = +new Date, type; + if (lastDoubleClick && lastDoubleClick.time > now - 400 && cmp(lastDoubleClick.pos, start) == 0) { + type = "triple"; + } else if (lastClick && lastClick.time > now - 400 && cmp(lastClick.pos, start) == 0) { + type = "double"; + lastDoubleClick = {time: now, pos: start}; + } else { + type = "single"; + lastClick = {time: now, pos: start}; + } + + var sel = cm.doc.sel, modifier = mac ? e.metaKey : e.ctrlKey, contained; + if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() && + type == "single" && (contained = sel.contains(start)) > -1 && + (cmp((contained = sel.ranges[contained]).from(), start) < 0 || start.xRel > 0) && + (cmp(contained.to(), start) > 0 || start.xRel < 0)) + { leftButtonStartDrag(cm, e, start, modifier); } + else + { leftButtonSelect(cm, e, start, type, modifier); } +} + +// Start a text drag. When it ends, see if any dragging actually +// happen, and treat as a click if it didn't. +function leftButtonStartDrag(cm, e, start, modifier) { + var display = cm.display, startTime = +new Date; + var dragEnd = operation(cm, function (e2) { + if (webkit) { display.scroller.draggable = false; } + cm.state.draggingText = false; + off(document, "mouseup", dragEnd); + off(display.scroller, "drop", dragEnd); + if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) { + e_preventDefault(e2); + if (!modifier && +new Date - 200 < startTime) + { extendSelection(cm.doc, start); } + // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081) + if (webkit || ie && ie_version == 9) + { setTimeout(function () {document.body.focus(); display.input.focus();}, 20); } + else + { display.input.focus(); } + } + }); + // Let the drag handler handle this. + if (webkit) { display.scroller.draggable = true; } + cm.state.draggingText = dragEnd; + dragEnd.copy = mac ? e.altKey : e.ctrlKey; + // IE's approach to draggable + if (display.scroller.dragDrop) { display.scroller.dragDrop(); } + on(document, "mouseup", dragEnd); + on(display.scroller, "drop", dragEnd); +} + +// Normal selection, as opposed to text dragging. +function leftButtonSelect(cm, e, start, type, addNew) { + var display = cm.display, doc = cm.doc; + e_preventDefault(e); + + var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges; + if (addNew && !e.shiftKey) { + ourIndex = doc.sel.contains(start); + if (ourIndex > -1) + { ourRange = ranges[ourIndex]; } + else + { ourRange = new Range(start, start); } + } else { + ourRange = doc.sel.primary(); + ourIndex = doc.sel.primIndex; + } + + if (chromeOS ? e.shiftKey && e.metaKey : e.altKey) { + type = "rect"; + if (!addNew) { ourRange = new Range(start, start); } + start = posFromMouse(cm, e, true, true); + ourIndex = -1; + } else if (type == "double") { + var word = cm.findWordAt(start); + if (cm.display.shift || doc.extend) + { ourRange = extendRange(doc, ourRange, word.anchor, word.head); } + else + { ourRange = word; } + } else if (type == "triple") { + var line = new Range(Pos(start.line, 0), clipPos(doc, Pos(start.line + 1, 0))); + if (cm.display.shift || doc.extend) + { ourRange = extendRange(doc, ourRange, line.anchor, line.head); } + else + { ourRange = line; } + } else { + ourRange = extendRange(doc, ourRange, start); + } + + if (!addNew) { + ourIndex = 0; + setSelection(doc, new Selection([ourRange], 0), sel_mouse); + startSel = doc.sel; + } else if (ourIndex == -1) { + ourIndex = ranges.length; + setSelection(doc, normalizeSelection(ranges.concat([ourRange]), ourIndex), + {scroll: false, origin: "*mouse"}); + } else if (ranges.length > 1 && ranges[ourIndex].empty() && type == "single" && !e.shiftKey) { + setSelection(doc, normalizeSelection(ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0), + {scroll: false, origin: "*mouse"}); + startSel = doc.sel; + } else { + replaceOneSelection(doc, ourIndex, ourRange, sel_mouse); + } + + var lastPos = start; + function extendTo(pos) { + if (cmp(lastPos, pos) == 0) { return } + lastPos = pos; + + if (type == "rect") { + var ranges = [], tabSize = cm.options.tabSize; + var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize); + var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize); + var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol); + for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line)); + line <= end; line++) { + var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize); + if (left == right) + { ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))); } + else if (text.length > leftPos) + { ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))); } + } + if (!ranges.length) { ranges.push(new Range(start, start)); } + setSelection(doc, normalizeSelection(startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex), + {origin: "*mouse", scroll: false}); + cm.scrollIntoView(pos); + } else { + var oldRange = ourRange; + var anchor = oldRange.anchor, head = pos; + if (type != "single") { + var range$$1; + if (type == "double") + { range$$1 = cm.findWordAt(pos); } + else + { range$$1 = new Range(Pos(pos.line, 0), clipPos(doc, Pos(pos.line + 1, 0))); } + if (cmp(range$$1.anchor, anchor) > 0) { + head = range$$1.head; + anchor = minPos(oldRange.from(), range$$1.anchor); + } else { + head = range$$1.anchor; + anchor = maxPos(oldRange.to(), range$$1.head); + } + } + var ranges$1 = startSel.ranges.slice(0); + ranges$1[ourIndex] = new Range(clipPos(doc, anchor), head); + setSelection(doc, normalizeSelection(ranges$1, ourIndex), sel_mouse); + } + } + + var editorSize = display.wrapper.getBoundingClientRect(); + // Used to ensure timeout re-tries don't fire when another extend + // happened in the meantime (clearTimeout isn't reliable -- at + // least on Chrome, the timeouts still happen even when cleared, + // if the clear happens after their scheduled firing time). + var counter = 0; + + function extend(e) { + var curCount = ++counter; + var cur = posFromMouse(cm, e, true, type == "rect"); + if (!cur) { return } + if (cmp(cur, lastPos) != 0) { + cm.curOp.focus = activeElt(); + extendTo(cur); + var visible = visibleLines(display, doc); + if (cur.line >= visible.to || cur.line < visible.from) + { setTimeout(operation(cm, function () {if (counter == curCount) { extend(e); }}), 150); } + } else { + var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0; + if (outside) { setTimeout(operation(cm, function () { + if (counter != curCount) { return } + display.scroller.scrollTop += outside; + extend(e); + }), 50); } + } + } + + function done(e) { + cm.state.selectingText = false; + counter = Infinity; + e_preventDefault(e); + display.input.focus(); + off(document, "mousemove", move); + off(document, "mouseup", up); + doc.history.lastSelOrigin = null; + } + + var move = operation(cm, function (e) { + if (!e_button(e)) { done(e); } + else { extend(e); } + }); + var up = operation(cm, done); + cm.state.selectingText = up; + on(document, "mousemove", move); + on(document, "mouseup", up); +} + + +// Determines whether an event happened in the gutter, and fires the +// handlers for the corresponding event. +function gutterEvent(cm, e, type, prevent) { + var mX, mY; + try { mX = e.clientX; mY = e.clientY; } + catch(e) { return false } + if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) { return false } + if (prevent) { e_preventDefault(e); } + + var display = cm.display; + var lineBox = display.lineDiv.getBoundingClientRect(); + + if (mY > lineBox.bottom || !hasHandler(cm, type)) { return e_defaultPrevented(e) } + mY -= lineBox.top - display.viewOffset; + + for (var i = 0; i < cm.options.gutters.length; ++i) { + var g = display.gutters.childNodes[i]; + if (g && g.getBoundingClientRect().right >= mX) { + var line = lineAtHeight(cm.doc, mY); + var gutter = cm.options.gutters[i]; + signal(cm, type, cm, line, gutter, e); + return e_defaultPrevented(e) + } + } +} + +function clickInGutter(cm, e) { + return gutterEvent(cm, e, "gutterClick", true) +} + +// CONTEXT MENU HANDLING + +// To make the context menu work, we need to briefly unhide the +// textarea (making it as unobtrusive as possible) to let the +// right-click take effect on it. +function onContextMenu(cm, e) { + if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) { return } + if (signalDOMEvent(cm, e, "contextmenu")) { return } + cm.display.input.onContextMenu(e); +} + +function contextMenuInGutter(cm, e) { + if (!hasHandler(cm, "gutterContextMenu")) { return false } + return gutterEvent(cm, e, "gutterContextMenu", false) +} + +function themeChanged(cm) { + cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") + + cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-"); + clearCaches(cm); +} + +var Init = {toString: function(){return "CodeMirror.Init"}}; + +var defaults = {}; +var optionHandlers = {}; + +function defineOptions(CodeMirror) { + var optionHandlers = CodeMirror.optionHandlers; + + function option(name, deflt, handle, notOnInit) { + CodeMirror.defaults[name] = deflt; + if (handle) { optionHandlers[name] = + notOnInit ? function (cm, val, old) {if (old != Init) { handle(cm, val, old); }} : handle; } + } + + CodeMirror.defineOption = option; + + // Passed to option handlers when there is no old value. + CodeMirror.Init = Init; + + // These two are, on init, called from the constructor because they + // have to be initialized before the editor can start at all. + option("value", "", function (cm, val) { return cm.setValue(val); }, true); + option("mode", null, function (cm, val) { + cm.doc.modeOption = val; + loadMode(cm); + }, true); + + option("indentUnit", 2, loadMode, true); + option("indentWithTabs", false); + option("smartIndent", true); + option("tabSize", 4, function (cm) { + resetModeState(cm); + clearCaches(cm); + regChange(cm); + }, true); + option("lineSeparator", null, function (cm, val) { + cm.doc.lineSep = val; + if (!val) { return } + var newBreaks = [], lineNo = cm.doc.first; + cm.doc.iter(function (line) { + for (var pos = 0;;) { + var found = line.text.indexOf(val, pos); + if (found == -1) { break } + pos = found + val.length; + newBreaks.push(Pos(lineNo, found)); + } + lineNo++; + }); + for (var i = newBreaks.length - 1; i >= 0; i--) + { replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length)); } + }); + option("specialChars", /[\u0000-\u001f\u007f-\u009f\u00ad\u061c\u200b-\u200f\u2028\u2029\ufeff]/g, function (cm, val, old) { + cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g"); + if (old != Init) { cm.refresh(); } + }); + option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function (cm) { return cm.refresh(); }, true); + option("electricChars", true); + option("inputStyle", mobile ? "contenteditable" : "textarea", function () { + throw new Error("inputStyle can not (yet) be changed in a running editor") // FIXME + }, true); + option("spellcheck", false, function (cm, val) { return cm.getInputField().spellcheck = val; }, true); + option("rtlMoveVisually", !windows); + option("wholeLineUpdateBefore", true); + + option("theme", "default", function (cm) { + themeChanged(cm); + guttersChanged(cm); + }, true); + option("keyMap", "default", function (cm, val, old) { + var next = getKeyMap(val); + var prev = old != Init && getKeyMap(old); + if (prev && prev.detach) { prev.detach(cm, next); } + if (next.attach) { next.attach(cm, prev || null); } + }); + option("extraKeys", null); + + option("lineWrapping", false, wrappingChanged, true); + option("gutters", [], function (cm) { + setGuttersForLineNumbers(cm.options); + guttersChanged(cm); + }, true); + option("fixedGutter", true, function (cm, val) { + cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0"; + cm.refresh(); + }, true); + option("coverGutterNextToScrollbar", false, function (cm) { return updateScrollbars(cm); }, true); + option("scrollbarStyle", "native", function (cm) { + initScrollbars(cm); + updateScrollbars(cm); + cm.display.scrollbars.setScrollTop(cm.doc.scrollTop); + cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft); + }, true); + option("lineNumbers", false, function (cm) { + setGuttersForLineNumbers(cm.options); + guttersChanged(cm); + }, true); + option("firstLineNumber", 1, guttersChanged, true); + option("lineNumberFormatter", function (integer) { return integer; }, guttersChanged, true); + option("showCursorWhenSelecting", false, updateSelection, true); + + option("resetSelectionOnContextMenu", true); + option("lineWiseCopyCut", true); + + option("readOnly", false, function (cm, val) { + if (val == "nocursor") { + onBlur(cm); + cm.display.input.blur(); + cm.display.disabled = true; + } else { + cm.display.disabled = false; + } + cm.display.input.readOnlyChanged(val); + }); + option("disableInput", false, function (cm, val) {if (!val) { cm.display.input.reset(); }}, true); + option("dragDrop", true, dragDropChanged); + option("allowDropFileTypes", null); + + option("cursorBlinkRate", 530); + option("cursorScrollMargin", 0); + option("cursorHeight", 1, updateSelection, true); + option("singleCursorHeightPerLine", true, updateSelection, true); + option("workTime", 100); + option("workDelay", 100); + option("flattenSpans", true, resetModeState, true); + option("addModeClass", false, resetModeState, true); + option("pollInterval", 100); + option("undoDepth", 200, function (cm, val) { return cm.doc.history.undoDepth = val; }); + option("historyEventDelay", 1250); + option("viewportMargin", 10, function (cm) { return cm.refresh(); }, true); + option("maxHighlightLength", 10000, resetModeState, true); + option("moveInputWithCursor", true, function (cm, val) { + if (!val) { cm.display.input.resetPosition(); } + }); + + option("tabindex", null, function (cm, val) { return cm.display.input.getField().tabIndex = val || ""; }); + option("autofocus", null); + option("direction", "ltr", function (cm, val) { return cm.doc.setDirection(val); }, true); +} + +function guttersChanged(cm) { + updateGutters(cm); + regChange(cm); + alignHorizontally(cm); +} + +function dragDropChanged(cm, value, old) { + var wasOn = old && old != Init; + if (!value != !wasOn) { + var funcs = cm.display.dragFunctions; + var toggle = value ? on : off; + toggle(cm.display.scroller, "dragstart", funcs.start); + toggle(cm.display.scroller, "dragenter", funcs.enter); + toggle(cm.display.scroller, "dragover", funcs.over); + toggle(cm.display.scroller, "dragleave", funcs.leave); + toggle(cm.display.scroller, "drop", funcs.drop); + } +} + +function wrappingChanged(cm) { + if (cm.options.lineWrapping) { + addClass(cm.display.wrapper, "CodeMirror-wrap"); + cm.display.sizer.style.minWidth = ""; + cm.display.sizerWidth = null; + } else { + rmClass(cm.display.wrapper, "CodeMirror-wrap"); + findMaxLine(cm); + } + estimateLineHeights(cm); + regChange(cm); + clearCaches(cm); + setTimeout(function () { return updateScrollbars(cm); }, 100); +} + +// A CodeMirror instance represents an editor. This is the object +// that user code is usually dealing with. + +function CodeMirror$1(place, options) { + var this$1 = this; + + if (!(this instanceof CodeMirror$1)) { return new CodeMirror$1(place, options) } + + this.options = options = options ? copyObj(options) : {}; + // Determine effective options based on given values and defaults. + copyObj(defaults, options, false); + setGuttersForLineNumbers(options); + + var doc = options.value; + if (typeof doc == "string") { doc = new Doc(doc, options.mode, null, options.lineSeparator, options.direction); } + this.doc = doc; + + var input = new CodeMirror$1.inputStyles[options.inputStyle](this); + var display = this.display = new Display(place, doc, input); + display.wrapper.CodeMirror = this; + updateGutters(this); + themeChanged(this); + if (options.lineWrapping) + { this.display.wrapper.className += " CodeMirror-wrap"; } + initScrollbars(this); + + this.state = { + keyMaps: [], // stores maps added by addKeyMap + overlays: [], // highlighting overlays, as added by addOverlay + modeGen: 0, // bumped when mode/overlay changes, used to invalidate highlighting info + overwrite: false, + delayingBlurEvent: false, + focused: false, + suppressEdits: false, // used to disable editing during key handlers when in readOnly mode + pasteIncoming: false, cutIncoming: false, // help recognize paste/cut edits in input.poll + selectingText: false, + draggingText: false, + highlight: new Delayed(), // stores highlight worker timeout + keySeq: null, // Unfinished key sequence + specialChars: null + }; + + if (options.autofocus && !mobile) { display.input.focus(); } + + // Override magic textarea content restore that IE sometimes does + // on our hidden textarea on reload + if (ie && ie_version < 11) { setTimeout(function () { return this$1.display.input.reset(true); }, 20); } + + registerEventHandlers(this); + ensureGlobalHandlers(); + + startOperation(this); + this.curOp.forceUpdate = true; + attachDoc(this, doc); + + if ((options.autofocus && !mobile) || this.hasFocus()) + { setTimeout(bind(onFocus, this), 20); } + else + { onBlur(this); } + + for (var opt in optionHandlers) { if (optionHandlers.hasOwnProperty(opt)) + { optionHandlers[opt](this$1, options[opt], Init); } } + maybeUpdateLineNumberWidth(this); + if (options.finishInit) { options.finishInit(this); } + for (var i = 0; i < initHooks.length; ++i) { initHooks[i](this$1); } + endOperation(this); + // Suppress optimizelegibility in Webkit, since it breaks text + // measuring on line wrapping boundaries. + if (webkit && options.lineWrapping && + getComputedStyle(display.lineDiv).textRendering == "optimizelegibility") + { display.lineDiv.style.textRendering = "auto"; } +} + +// The default configuration options. +CodeMirror$1.defaults = defaults; +// Functions to run when options are changed. +CodeMirror$1.optionHandlers = optionHandlers; + +// Attach the necessary event handlers when initializing the editor +function registerEventHandlers(cm) { + var d = cm.display; + on(d.scroller, "mousedown", operation(cm, onMouseDown)); + // Older IE's will not fire a second mousedown for a double click + if (ie && ie_version < 11) + { on(d.scroller, "dblclick", operation(cm, function (e) { + if (signalDOMEvent(cm, e)) { return } + var pos = posFromMouse(cm, e); + if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) { return } + e_preventDefault(e); + var word = cm.findWordAt(pos); + extendSelection(cm.doc, word.anchor, word.head); + })); } + else + { on(d.scroller, "dblclick", function (e) { return signalDOMEvent(cm, e) || e_preventDefault(e); }); } + // Some browsers fire contextmenu *after* opening the menu, at + // which point we can't mess with it anymore. Context menu is + // handled in onMouseDown for these browsers. + if (!captureRightClick) { on(d.scroller, "contextmenu", function (e) { return onContextMenu(cm, e); }); } + + // Used to suppress mouse event handling when a touch happens + var touchFinished, prevTouch = {end: 0}; + function finishTouch() { + if (d.activeTouch) { + touchFinished = setTimeout(function () { return d.activeTouch = null; }, 1000); + prevTouch = d.activeTouch; + prevTouch.end = +new Date; + } + } + function isMouseLikeTouchEvent(e) { + if (e.touches.length != 1) { return false } + var touch = e.touches[0]; + return touch.radiusX <= 1 && touch.radiusY <= 1 + } + function farAway(touch, other) { + if (other.left == null) { return true } + var dx = other.left - touch.left, dy = other.top - touch.top; + return dx * dx + dy * dy > 20 * 20 + } + on(d.scroller, "touchstart", function (e) { + if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e)) { + d.input.ensurePolled(); + clearTimeout(touchFinished); + var now = +new Date; + d.activeTouch = {start: now, moved: false, + prev: now - prevTouch.end <= 300 ? prevTouch : null}; + if (e.touches.length == 1) { + d.activeTouch.left = e.touches[0].pageX; + d.activeTouch.top = e.touches[0].pageY; + } + } + }); + on(d.scroller, "touchmove", function () { + if (d.activeTouch) { d.activeTouch.moved = true; } + }); + on(d.scroller, "touchend", function (e) { + var touch = d.activeTouch; + if (touch && !eventInWidget(d, e) && touch.left != null && + !touch.moved && new Date - touch.start < 300) { + var pos = cm.coordsChar(d.activeTouch, "page"), range; + if (!touch.prev || farAway(touch, touch.prev)) // Single tap + { range = new Range(pos, pos); } + else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap + { range = cm.findWordAt(pos); } + else // Triple tap + { range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))); } + cm.setSelection(range.anchor, range.head); + cm.focus(); + e_preventDefault(e); + } + finishTouch(); + }); + on(d.scroller, "touchcancel", finishTouch); + + // Sync scrolling between fake scrollbars and real scrollable + // area, ensure viewport is updated when scrolling. + on(d.scroller, "scroll", function () { + if (d.scroller.clientHeight) { + setScrollTop(cm, d.scroller.scrollTop); + setScrollLeft(cm, d.scroller.scrollLeft, true); + signal(cm, "scroll", cm); + } + }); + + // Listen to wheel events in order to try and update the viewport on time. + on(d.scroller, "mousewheel", function (e) { return onScrollWheel(cm, e); }); + on(d.scroller, "DOMMouseScroll", function (e) { return onScrollWheel(cm, e); }); + + // Prevent wrapper from ever scrolling + on(d.wrapper, "scroll", function () { return d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; }); + + d.dragFunctions = { + enter: function (e) {if (!signalDOMEvent(cm, e)) { e_stop(e); }}, + over: function (e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); }}, + start: function (e) { return onDragStart(cm, e); }, + drop: operation(cm, onDrop), + leave: function (e) {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm); }} + }; + + var inp = d.input.getField(); + on(inp, "keyup", function (e) { return onKeyUp.call(cm, e); }); + on(inp, "keydown", operation(cm, onKeyDown)); + on(inp, "keypress", operation(cm, onKeyPress)); + on(inp, "focus", function (e) { return onFocus(cm, e); }); + on(inp, "blur", function (e) { return onBlur(cm, e); }); +} + +var initHooks = []; +CodeMirror$1.defineInitHook = function (f) { return initHooks.push(f); }; + +// Indent the given line. The how parameter can be "smart", +// "add"/null, "subtract", or "prev". When aggressive is false +// (typically set to true for forced single-line indents), empty +// lines are not indented, and places where the mode returns Pass +// are left alone. +function indentLine(cm, n, how, aggressive) { + var doc = cm.doc, state; + if (how == null) { how = "add"; } + if (how == "smart") { + // Fall back to "prev" when the mode doesn't have an indentation + // method. + if (!doc.mode.indent) { how = "prev"; } + else { state = getStateBefore(cm, n); } + } + + var tabSize = cm.options.tabSize; + var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize); + if (line.stateAfter) { line.stateAfter = null; } + var curSpaceString = line.text.match(/^\s*/)[0], indentation; + if (!aggressive && !/\S/.test(line.text)) { + indentation = 0; + how = "not"; + } else if (how == "smart") { + indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text); + if (indentation == Pass || indentation > 150) { + if (!aggressive) { return } + how = "prev"; + } + } + if (how == "prev") { + if (n > doc.first) { indentation = countColumn(getLine(doc, n-1).text, null, tabSize); } + else { indentation = 0; } + } else if (how == "add") { + indentation = curSpace + cm.options.indentUnit; + } else if (how == "subtract") { + indentation = curSpace - cm.options.indentUnit; + } else if (typeof how == "number") { + indentation = curSpace + how; + } + indentation = Math.max(0, indentation); + + var indentString = "", pos = 0; + if (cm.options.indentWithTabs) + { for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";} } + if (pos < indentation) { indentString += spaceStr(indentation - pos); } + + if (indentString != curSpaceString) { + replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input"); + line.stateAfter = null; + return true + } else { + // Ensure that, if the cursor was in the whitespace at the start + // of the line, it is moved to the end of that space. + for (var i$1 = 0; i$1 < doc.sel.ranges.length; i$1++) { + var range = doc.sel.ranges[i$1]; + if (range.head.line == n && range.head.ch < curSpaceString.length) { + var pos$1 = Pos(n, curSpaceString.length); + replaceOneSelection(doc, i$1, new Range(pos$1, pos$1)); + break + } + } + } +} + +// This will be set to a {lineWise: bool, text: [string]} object, so +// that, when pasting, we know what kind of selections the copied +// text was made out of. +var lastCopied = null; + +function setLastCopied(newLastCopied) { + lastCopied = newLastCopied; +} + +function applyTextInput(cm, inserted, deleted, sel, origin) { + var doc = cm.doc; + cm.display.shift = false; + if (!sel) { sel = doc.sel; } + + var paste = cm.state.pasteIncoming || origin == "paste"; + var textLines = splitLinesAuto(inserted), multiPaste = null; + // When pasing N lines into N selections, insert one line per selection + if (paste && sel.ranges.length > 1) { + if (lastCopied && lastCopied.text.join("\n") == inserted) { + if (sel.ranges.length % lastCopied.text.length == 0) { + multiPaste = []; + for (var i = 0; i < lastCopied.text.length; i++) + { multiPaste.push(doc.splitLines(lastCopied.text[i])); } + } + } else if (textLines.length == sel.ranges.length) { + multiPaste = map(textLines, function (l) { return [l]; }); + } + } + + var updateInput; + // Normal behavior is to insert the new text into every selection + for (var i$1 = sel.ranges.length - 1; i$1 >= 0; i$1--) { + var range$$1 = sel.ranges[i$1]; + var from = range$$1.from(), to = range$$1.to(); + if (range$$1.empty()) { + if (deleted && deleted > 0) // Handle deletion + { from = Pos(from.line, from.ch - deleted); } + else if (cm.state.overwrite && !paste) // Handle overwrite + { to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)); } + else if (lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == inserted) + { from = to = Pos(from.line, 0); } + } + updateInput = cm.curOp.updateInput; + var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i$1 % multiPaste.length] : textLines, + origin: origin || (paste ? "paste" : cm.state.cutIncoming ? "cut" : "+input")}; + makeChange(cm.doc, changeEvent); + signalLater(cm, "inputRead", cm, changeEvent); + } + if (inserted && !paste) + { triggerElectric(cm, inserted); } + + ensureCursorVisible(cm); + cm.curOp.updateInput = updateInput; + cm.curOp.typing = true; + cm.state.pasteIncoming = cm.state.cutIncoming = false; +} + +function handlePaste(e, cm) { + var pasted = e.clipboardData && e.clipboardData.getData("Text"); + if (pasted) { + e.preventDefault(); + if (!cm.isReadOnly() && !cm.options.disableInput) + { runInOp(cm, function () { return applyTextInput(cm, pasted, 0, null, "paste"); }); } + return true + } +} + +function triggerElectric(cm, inserted) { + // When an 'electric' character is inserted, immediately trigger a reindent + if (!cm.options.electricChars || !cm.options.smartIndent) { return } + var sel = cm.doc.sel; + + for (var i = sel.ranges.length - 1; i >= 0; i--) { + var range$$1 = sel.ranges[i]; + if (range$$1.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range$$1.head.line)) { continue } + var mode = cm.getModeAt(range$$1.head); + var indented = false; + if (mode.electricChars) { + for (var j = 0; j < mode.electricChars.length; j++) + { if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) { + indented = indentLine(cm, range$$1.head.line, "smart"); + break + } } + } else if (mode.electricInput) { + if (mode.electricInput.test(getLine(cm.doc, range$$1.head.line).text.slice(0, range$$1.head.ch))) + { indented = indentLine(cm, range$$1.head.line, "smart"); } + } + if (indented) { signalLater(cm, "electricInput", cm, range$$1.head.line); } + } +} + +function copyableRanges(cm) { + var text = [], ranges = []; + for (var i = 0; i < cm.doc.sel.ranges.length; i++) { + var line = cm.doc.sel.ranges[i].head.line; + var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)}; + ranges.push(lineRange); + text.push(cm.getRange(lineRange.anchor, lineRange.head)); + } + return {text: text, ranges: ranges} +} + +function disableBrowserMagic(field, spellcheck) { + field.setAttribute("autocorrect", "off"); + field.setAttribute("autocapitalize", "off"); + field.setAttribute("spellcheck", !!spellcheck); +} + +function hiddenTextarea() { + var te = elt("textarea", null, null, "position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none"); + var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;"); + // The textarea is kept positioned near the cursor to prevent the + // fact that it'll be scrolled into view on input from scrolling + // our fake cursor out of view. On webkit, when wrap=off, paste is + // very slow. So make the area wide instead. + if (webkit) { te.style.width = "1000px"; } + else { te.setAttribute("wrap", "off"); } + // If border: 0; -- iOS fails to open keyboard (issue #1287) + if (ios) { te.style.border = "1px solid black"; } + disableBrowserMagic(te); + return div +} + +// The publicly visible API. Note that methodOp(f) means +// 'wrap f in an operation, performed on its `this` parameter'. + +// This is not the complete set of editor methods. Most of the +// methods defined on the Doc type are also injected into +// CodeMirror.prototype, for backwards compatibility and +// convenience. + +var addEditorMethods = function(CodeMirror) { + var optionHandlers = CodeMirror.optionHandlers; + + var helpers = CodeMirror.helpers = {}; + + CodeMirror.prototype = { + constructor: CodeMirror, + focus: function(){window.focus(); this.display.input.focus();}, + + setOption: function(option, value) { + var options = this.options, old = options[option]; + if (options[option] == value && option != "mode") { return } + options[option] = value; + if (optionHandlers.hasOwnProperty(option)) + { operation(this, optionHandlers[option])(this, value, old); } + signal(this, "optionChange", this, option); + }, + + getOption: function(option) {return this.options[option]}, + getDoc: function() {return this.doc}, + + addKeyMap: function(map$$1, bottom) { + this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map$$1)); + }, + removeKeyMap: function(map$$1) { + var maps = this.state.keyMaps; + for (var i = 0; i < maps.length; ++i) + { if (maps[i] == map$$1 || maps[i].name == map$$1) { + maps.splice(i, 1); + return true + } } + }, + + addOverlay: methodOp(function(spec, options) { + var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec); + if (mode.startState) { throw new Error("Overlays may not be stateful.") } + insertSorted(this.state.overlays, + {mode: mode, modeSpec: spec, opaque: options && options.opaque, + priority: (options && options.priority) || 0}, + function (overlay) { return overlay.priority; }); + this.state.modeGen++; + regChange(this); + }), + removeOverlay: methodOp(function(spec) { + var this$1 = this; + + var overlays = this.state.overlays; + for (var i = 0; i < overlays.length; ++i) { + var cur = overlays[i].modeSpec; + if (cur == spec || typeof spec == "string" && cur.name == spec) { + overlays.splice(i, 1); + this$1.state.modeGen++; + regChange(this$1); + return + } + } + }), + + indentLine: methodOp(function(n, dir, aggressive) { + if (typeof dir != "string" && typeof dir != "number") { + if (dir == null) { dir = this.options.smartIndent ? "smart" : "prev"; } + else { dir = dir ? "add" : "subtract"; } + } + if (isLine(this.doc, n)) { indentLine(this, n, dir, aggressive); } + }), + indentSelection: methodOp(function(how) { + var this$1 = this; + + var ranges = this.doc.sel.ranges, end = -1; + for (var i = 0; i < ranges.length; i++) { + var range$$1 = ranges[i]; + if (!range$$1.empty()) { + var from = range$$1.from(), to = range$$1.to(); + var start = Math.max(end, from.line); + end = Math.min(this$1.lastLine(), to.line - (to.ch ? 0 : 1)) + 1; + for (var j = start; j < end; ++j) + { indentLine(this$1, j, how); } + var newRanges = this$1.doc.sel.ranges; + if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0) + { replaceOneSelection(this$1.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll); } + } else if (range$$1.head.line > end) { + indentLine(this$1, range$$1.head.line, how, true); + end = range$$1.head.line; + if (i == this$1.doc.sel.primIndex) { ensureCursorVisible(this$1); } + } + } + }), + + // Fetch the parser token for a given character. Useful for hacks + // that want to inspect the mode state (say, for completion). + getTokenAt: function(pos, precise) { + return takeToken(this, pos, precise) + }, + + getLineTokens: function(line, precise) { + return takeToken(this, Pos(line), precise, true) + }, + + getTokenTypeAt: function(pos) { + pos = clipPos(this.doc, pos); + var styles = getLineStyles(this, getLine(this.doc, pos.line)); + var before = 0, after = (styles.length - 1) / 2, ch = pos.ch; + var type; + if (ch == 0) { type = styles[2]; } + else { for (;;) { + var mid = (before + after) >> 1; + if ((mid ? styles[mid * 2 - 1] : 0) >= ch) { after = mid; } + else if (styles[mid * 2 + 1] < ch) { before = mid + 1; } + else { type = styles[mid * 2 + 2]; break } + } } + var cut = type ? type.indexOf("overlay ") : -1; + return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1) + }, + + getModeAt: function(pos) { + var mode = this.doc.mode; + if (!mode.innerMode) { return mode } + return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode + }, + + getHelper: function(pos, type) { + return this.getHelpers(pos, type)[0] + }, + + getHelpers: function(pos, type) { + var this$1 = this; + + var found = []; + if (!helpers.hasOwnProperty(type)) { return found } + var help = helpers[type], mode = this.getModeAt(pos); + if (typeof mode[type] == "string") { + if (help[mode[type]]) { found.push(help[mode[type]]); } + } else if (mode[type]) { + for (var i = 0; i < mode[type].length; i++) { + var val = help[mode[type][i]]; + if (val) { found.push(val); } + } + } else if (mode.helperType && help[mode.helperType]) { + found.push(help[mode.helperType]); + } else if (help[mode.name]) { + found.push(help[mode.name]); + } + for (var i$1 = 0; i$1 < help._global.length; i$1++) { + var cur = help._global[i$1]; + if (cur.pred(mode, this$1) && indexOf(found, cur.val) == -1) + { found.push(cur.val); } + } + return found + }, + + getStateAfter: function(line, precise) { + var doc = this.doc; + line = clipLine(doc, line == null ? doc.first + doc.size - 1: line); + return getStateBefore(this, line + 1, precise) + }, + + cursorCoords: function(start, mode) { + var pos, range$$1 = this.doc.sel.primary(); + if (start == null) { pos = range$$1.head; } + else if (typeof start == "object") { pos = clipPos(this.doc, start); } + else { pos = start ? range$$1.from() : range$$1.to(); } + return cursorCoords(this, pos, mode || "page") + }, + + charCoords: function(pos, mode) { + return charCoords(this, clipPos(this.doc, pos), mode || "page") + }, + + coordsChar: function(coords, mode) { + coords = fromCoordSystem(this, coords, mode || "page"); + return coordsChar(this, coords.left, coords.top) + }, + + lineAtHeight: function(height, mode) { + height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top; + return lineAtHeight(this.doc, height + this.display.viewOffset) + }, + heightAtLine: function(line, mode, includeWidgets) { + var end = false, lineObj; + if (typeof line == "number") { + var last = this.doc.first + this.doc.size - 1; + if (line < this.doc.first) { line = this.doc.first; } + else if (line > last) { line = last; end = true; } + lineObj = getLine(this.doc, line); + } else { + lineObj = line; + } + return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page", includeWidgets || end).top + + (end ? this.doc.height - heightAtLine(lineObj) : 0) + }, + + defaultTextHeight: function() { return textHeight(this.display) }, + defaultCharWidth: function() { return charWidth(this.display) }, + + getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo}}, + + addWidget: function(pos, node, scroll, vert, horiz) { + var display = this.display; + pos = cursorCoords(this, clipPos(this.doc, pos)); + var top = pos.bottom, left = pos.left; + node.style.position = "absolute"; + node.setAttribute("cm-ignore-events", "true"); + this.display.input.setUneditable(node); + display.sizer.appendChild(node); + if (vert == "over") { + top = pos.top; + } else if (vert == "above" || vert == "near") { + var vspace = Math.max(display.wrapper.clientHeight, this.doc.height), + hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth); + // Default to positioning above (if specified and possible); otherwise default to positioning below + if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight) + { top = pos.top - node.offsetHeight; } + else if (pos.bottom + node.offsetHeight <= vspace) + { top = pos.bottom; } + if (left + node.offsetWidth > hspace) + { left = hspace - node.offsetWidth; } + } + node.style.top = top + "px"; + node.style.left = node.style.right = ""; + if (horiz == "right") { + left = display.sizer.clientWidth - node.offsetWidth; + node.style.right = "0px"; + } else { + if (horiz == "left") { left = 0; } + else if (horiz == "middle") { left = (display.sizer.clientWidth - node.offsetWidth) / 2; } + node.style.left = left + "px"; + } + if (scroll) + { scrollIntoView(this, {left: left, top: top, right: left + node.offsetWidth, bottom: top + node.offsetHeight}); } + }, + + triggerOnKeyDown: methodOp(onKeyDown), + triggerOnKeyPress: methodOp(onKeyPress), + triggerOnKeyUp: onKeyUp, + + execCommand: function(cmd) { + if (commands.hasOwnProperty(cmd)) + { return commands[cmd].call(null, this) } + }, + + triggerElectric: methodOp(function(text) { triggerElectric(this, text); }), + + findPosH: function(from, amount, unit, visually) { + var this$1 = this; + + var dir = 1; + if (amount < 0) { dir = -1; amount = -amount; } + var cur = clipPos(this.doc, from); + for (var i = 0; i < amount; ++i) { + cur = findPosH(this$1.doc, cur, dir, unit, visually); + if (cur.hitSide) { break } + } + return cur + }, + + moveH: methodOp(function(dir, unit) { + var this$1 = this; + + this.extendSelectionsBy(function (range$$1) { + if (this$1.display.shift || this$1.doc.extend || range$$1.empty()) + { return findPosH(this$1.doc, range$$1.head, dir, unit, this$1.options.rtlMoveVisually) } + else + { return dir < 0 ? range$$1.from() : range$$1.to() } + }, sel_move); + }), + + deleteH: methodOp(function(dir, unit) { + var sel = this.doc.sel, doc = this.doc; + if (sel.somethingSelected()) + { doc.replaceSelection("", null, "+delete"); } + else + { deleteNearSelection(this, function (range$$1) { + var other = findPosH(doc, range$$1.head, dir, unit, false); + return dir < 0 ? {from: other, to: range$$1.head} : {from: range$$1.head, to: other} + }); } + }), + + findPosV: function(from, amount, unit, goalColumn) { + var this$1 = this; + + var dir = 1, x = goalColumn; + if (amount < 0) { dir = -1; amount = -amount; } + var cur = clipPos(this.doc, from); + for (var i = 0; i < amount; ++i) { + var coords = cursorCoords(this$1, cur, "div"); + if (x == null) { x = coords.left; } + else { coords.left = x; } + cur = findPosV(this$1, coords, dir, unit); + if (cur.hitSide) { break } + } + return cur + }, + + moveV: methodOp(function(dir, unit) { + var this$1 = this; + + var doc = this.doc, goals = []; + var collapse = !this.display.shift && !doc.extend && doc.sel.somethingSelected(); + doc.extendSelectionsBy(function (range$$1) { + if (collapse) + { return dir < 0 ? range$$1.from() : range$$1.to() } + var headPos = cursorCoords(this$1, range$$1.head, "div"); + if (range$$1.goalColumn != null) { headPos.left = range$$1.goalColumn; } + goals.push(headPos.left); + var pos = findPosV(this$1, headPos, dir, unit); + if (unit == "page" && range$$1 == doc.sel.primary()) + { addToScrollPos(this$1, null, charCoords(this$1, pos, "div").top - headPos.top); } + return pos + }, sel_move); + if (goals.length) { for (var i = 0; i < doc.sel.ranges.length; i++) + { doc.sel.ranges[i].goalColumn = goals[i]; } } + }), + + // Find the word at the given position (as returned by coordsChar). + findWordAt: function(pos) { + var doc = this.doc, line = getLine(doc, pos.line).text; + var start = pos.ch, end = pos.ch; + if (line) { + var helper = this.getHelper(pos, "wordChars"); + if ((pos.sticky == "before" || end == line.length) && start) { --start; } else { ++end; } + var startChar = line.charAt(start); + var check = isWordChar(startChar, helper) + ? function (ch) { return isWordChar(ch, helper); } + : /\s/.test(startChar) ? function (ch) { return /\s/.test(ch); } + : function (ch) { return (!/\s/.test(ch) && !isWordChar(ch)); }; + while (start > 0 && check(line.charAt(start - 1))) { --start; } + while (end < line.length && check(line.charAt(end))) { ++end; } + } + return new Range(Pos(pos.line, start), Pos(pos.line, end)) + }, + + toggleOverwrite: function(value) { + if (value != null && value == this.state.overwrite) { return } + if (this.state.overwrite = !this.state.overwrite) + { addClass(this.display.cursorDiv, "CodeMirror-overwrite"); } + else + { rmClass(this.display.cursorDiv, "CodeMirror-overwrite"); } + + signal(this, "overwriteToggle", this, this.state.overwrite); + }, + hasFocus: function() { return this.display.input.getField() == activeElt() }, + isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit) }, + + scrollTo: methodOp(function(x, y) { + if (x != null || y != null) { resolveScrollToPos(this); } + if (x != null) { this.curOp.scrollLeft = x; } + if (y != null) { this.curOp.scrollTop = y; } + }), + getScrollInfo: function() { + var scroller = this.display.scroller; + return {left: scroller.scrollLeft, top: scroller.scrollTop, + height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight, + width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth, + clientHeight: displayHeight(this), clientWidth: displayWidth(this)} + }, + + scrollIntoView: methodOp(function(range$$1, margin) { + if (range$$1 == null) { + range$$1 = {from: this.doc.sel.primary().head, to: null}; + if (margin == null) { margin = this.options.cursorScrollMargin; } + } else if (typeof range$$1 == "number") { + range$$1 = {from: Pos(range$$1, 0), to: null}; + } else if (range$$1.from == null) { + range$$1 = {from: range$$1, to: null}; + } + if (!range$$1.to) { range$$1.to = range$$1.from; } + range$$1.margin = margin || 0; + + if (range$$1.from.line != null) { + resolveScrollToPos(this); + this.curOp.scrollToPos = range$$1; + } else { + var sPos = calculateScrollPos(this, { + left: Math.min(range$$1.from.left, range$$1.to.left), + top: Math.min(range$$1.from.top, range$$1.to.top) - range$$1.margin, + right: Math.max(range$$1.from.right, range$$1.to.right), + bottom: Math.max(range$$1.from.bottom, range$$1.to.bottom) + range$$1.margin + }); + this.scrollTo(sPos.scrollLeft, sPos.scrollTop); + } + }), + + setSize: methodOp(function(width, height) { + var this$1 = this; + + var interpret = function (val) { return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val; }; + if (width != null) { this.display.wrapper.style.width = interpret(width); } + if (height != null) { this.display.wrapper.style.height = interpret(height); } + if (this.options.lineWrapping) { clearLineMeasurementCache(this); } + var lineNo$$1 = this.display.viewFrom; + this.doc.iter(lineNo$$1, this.display.viewTo, function (line) { + if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) + { if (line.widgets[i].noHScroll) { regLineChange(this$1, lineNo$$1, "widget"); break } } } + ++lineNo$$1; + }); + this.curOp.forceUpdate = true; + signal(this, "refresh", this); + }), + + operation: function(f){return runInOp(this, f)}, + + refresh: methodOp(function() { + var oldHeight = this.display.cachedTextHeight; + regChange(this); + this.curOp.forceUpdate = true; + clearCaches(this); + this.scrollTo(this.doc.scrollLeft, this.doc.scrollTop); + updateGutterSpace(this); + if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5) + { estimateLineHeights(this); } + signal(this, "refresh", this); + }), + + swapDoc: methodOp(function(doc) { + var old = this.doc; + old.cm = null; + attachDoc(this, doc); + clearCaches(this); + this.display.input.reset(); + this.scrollTo(doc.scrollLeft, doc.scrollTop); + this.curOp.forceScroll = true; + signalLater(this, "swapDoc", this, old); + return old + }), + + getInputField: function(){return this.display.input.getField()}, + getWrapperElement: function(){return this.display.wrapper}, + getScrollerElement: function(){return this.display.scroller}, + getGutterElement: function(){return this.display.gutters} + }; + eventMixin(CodeMirror); + + CodeMirror.registerHelper = function(type, name, value) { + if (!helpers.hasOwnProperty(type)) { helpers[type] = CodeMirror[type] = {_global: []}; } + helpers[type][name] = value; + }; + CodeMirror.registerGlobalHelper = function(type, name, predicate, value) { + CodeMirror.registerHelper(type, name, value); + helpers[type]._global.push({pred: predicate, val: value}); + }; +}; + +// Used for horizontal relative motion. Dir is -1 or 1 (left or +// right), unit can be "char", "column" (like char, but doesn't +// cross line boundaries), "word" (across next word), or "group" (to +// the start of next group of word or non-word-non-whitespace +// chars). The visually param controls whether, in right-to-left +// text, direction 1 means to move towards the next index in the +// string, or towards the character to the right of the current +// position. The resulting position will have a hitSide=true +// property if it reached the end of the document. +function findPosH(doc, pos, dir, unit, visually) { + var oldPos = pos; + var origDir = dir; + var lineObj = getLine(doc, pos.line); + function findNextLine() { + var l = pos.line + dir; + if (l < doc.first || l >= doc.first + doc.size) { return false } + pos = new Pos(l, pos.ch, pos.sticky); + return lineObj = getLine(doc, l) + } + function moveOnce(boundToLine) { + var next; + if (visually) { + next = moveVisually(doc.cm, lineObj, pos, dir); + } else { + next = moveLogically(lineObj, pos, dir); + } + if (next == null) { + if (!boundToLine && findNextLine()) + { pos = endOfLine(visually, doc.cm, lineObj, pos.line, dir); } + else + { return false } + } else { + pos = next; + } + return true + } + + if (unit == "char") { + moveOnce(); + } else if (unit == "column") { + moveOnce(true); + } else if (unit == "word" || unit == "group") { + var sawType = null, group = unit == "group"; + var helper = doc.cm && doc.cm.getHelper(pos, "wordChars"); + for (var first = true;; first = false) { + if (dir < 0 && !moveOnce(!first)) { break } + var cur = lineObj.text.charAt(pos.ch) || "\n"; + var type = isWordChar(cur, helper) ? "w" + : group && cur == "\n" ? "n" + : !group || /\s/.test(cur) ? null + : "p"; + if (group && !first && !type) { type = "s"; } + if (sawType && sawType != type) { + if (dir < 0) {dir = 1; moveOnce(); pos.sticky = "after";} + break + } + + if (type) { sawType = type; } + if (dir > 0 && !moveOnce(!first)) { break } + } + } + var result = skipAtomic(doc, pos, oldPos, origDir, true); + if (equalCursorPos(oldPos, result)) { result.hitSide = true; } + return result +} + +// For relative vertical movement. Dir may be -1 or 1. Unit can be +// "page" or "line". The resulting position will have a hitSide=true +// property if it reached the end of the document. +function findPosV(cm, pos, dir, unit) { + var doc = cm.doc, x = pos.left, y; + if (unit == "page") { + var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight); + var moveAmount = Math.max(pageSize - .5 * textHeight(cm.display), 3); + y = (dir > 0 ? pos.bottom : pos.top) + dir * moveAmount; + + } else if (unit == "line") { + y = dir > 0 ? pos.bottom + 3 : pos.top - 3; + } + var target; + for (;;) { + target = coordsChar(cm, x, y); + if (!target.outside) { break } + if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break } + y += dir * 5; + } + return target +} + +// CONTENTEDITABLE INPUT STYLE + +var ContentEditableInput = function(cm) { + this.cm = cm; + this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null; + this.polling = new Delayed(); + this.composing = null; + this.gracePeriod = false; + this.readDOMTimeout = null; +}; + +ContentEditableInput.prototype.init = function (display) { + var this$1 = this; + + var input = this, cm = input.cm; + var div = input.div = display.lineDiv; + disableBrowserMagic(div, cm.options.spellcheck); + + on(div, "paste", function (e) { + if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return } + // IE doesn't fire input events, so we schedule a read for the pasted content in this way + if (ie_version <= 11) { setTimeout(operation(cm, function () { return this$1.updateFromDOM(); }), 20); } + }); + + on(div, "compositionstart", function (e) { + this$1.composing = {data: e.data, done: false}; + }); + on(div, "compositionupdate", function (e) { + if (!this$1.composing) { this$1.composing = {data: e.data, done: false}; } + }); + on(div, "compositionend", function (e) { + if (this$1.composing) { + if (e.data != this$1.composing.data) { this$1.readFromDOMSoon(); } + this$1.composing.done = true; + } + }); + + on(div, "touchstart", function () { return input.forceCompositionEnd(); }); + + on(div, "input", function () { + if (!this$1.composing) { this$1.readFromDOMSoon(); } + }); + + function onCopyCut(e) { + if (signalDOMEvent(cm, e)) { return } + if (cm.somethingSelected()) { + setLastCopied({lineWise: false, text: cm.getSelections()}); + if (e.type == "cut") { cm.replaceSelection("", null, "cut"); } + } else if (!cm.options.lineWiseCopyCut) { + return + } else { + var ranges = copyableRanges(cm); + setLastCopied({lineWise: true, text: ranges.text}); + if (e.type == "cut") { + cm.operation(function () { + cm.setSelections(ranges.ranges, 0, sel_dontScroll); + cm.replaceSelection("", null, "cut"); + }); + } + } + if (e.clipboardData) { + e.clipboardData.clearData(); + var content = lastCopied.text.join("\n"); + // iOS exposes the clipboard API, but seems to discard content inserted into it + e.clipboardData.setData("Text", content); + if (e.clipboardData.getData("Text") == content) { + e.preventDefault(); + return + } + } + // Old-fashioned briefly-focus-a-textarea hack + var kludge = hiddenTextarea(), te = kludge.firstChild; + cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild); + te.value = lastCopied.text.join("\n"); + var hadFocus = document.activeElement; + selectInput(te); + setTimeout(function () { + cm.display.lineSpace.removeChild(kludge); + hadFocus.focus(); + if (hadFocus == div) { input.showPrimarySelection(); } + }, 50); + } + on(div, "copy", onCopyCut); + on(div, "cut", onCopyCut); +}; + +ContentEditableInput.prototype.prepareSelection = function () { + var result = prepareSelection(this.cm, false); + result.focus = this.cm.state.focused; + return result +}; + +ContentEditableInput.prototype.showSelection = function (info, takeFocus) { + if (!info || !this.cm.display.view.length) { return } + if (info.focus || takeFocus) { this.showPrimarySelection(); } + this.showMultipleSelections(info); +}; + +ContentEditableInput.prototype.showPrimarySelection = function () { + var sel = window.getSelection(), prim = this.cm.doc.sel.primary(); + var curAnchor = domToPos(this.cm, sel.anchorNode, sel.anchorOffset); + var curFocus = domToPos(this.cm, sel.focusNode, sel.focusOffset); + if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad && + cmp(minPos(curAnchor, curFocus), prim.from()) == 0 && + cmp(maxPos(curAnchor, curFocus), prim.to()) == 0) + { return } + + var start = posToDOM(this.cm, prim.from()); + var end = posToDOM(this.cm, prim.to()); + if (!start && !end) { + sel.removeAllRanges(); + return + } + + var view = this.cm.display.view; + var old = sel.rangeCount && sel.getRangeAt(0); + if (!start) { + start = {node: view[0].measure.map[2], offset: 0}; + } else if (!end) { // FIXME dangerously hacky + var measure = view[view.length - 1].measure; + var map$$1 = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map; + end = {node: map$$1[map$$1.length - 1], offset: map$$1[map$$1.length - 2] - map$$1[map$$1.length - 3]}; + } + + var rng; + try { rng = range(start.node, start.offset, end.offset, end.node); } + catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible + if (rng) { + if (!gecko && this.cm.state.focused) { + sel.collapse(start.node, start.offset); + if (!rng.collapsed) { + sel.removeAllRanges(); + sel.addRange(rng); + } + } else { + sel.removeAllRanges(); + sel.addRange(rng); + } + if (old && sel.anchorNode == null) { sel.addRange(old); } + else if (gecko) { this.startGracePeriod(); } + } + this.rememberSelection(); +}; + +ContentEditableInput.prototype.startGracePeriod = function () { + var this$1 = this; + + clearTimeout(this.gracePeriod); + this.gracePeriod = setTimeout(function () { + this$1.gracePeriod = false; + if (this$1.selectionChanged()) + { this$1.cm.operation(function () { return this$1.cm.curOp.selectionChanged = true; }); } + }, 20); +}; + +ContentEditableInput.prototype.showMultipleSelections = function (info) { + removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors); + removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection); +}; + +ContentEditableInput.prototype.rememberSelection = function () { + var sel = window.getSelection(); + this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset; + this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset; +}; + +ContentEditableInput.prototype.selectionInEditor = function () { + var sel = window.getSelection(); + if (!sel.rangeCount) { return false } + var node = sel.getRangeAt(0).commonAncestorContainer; + return contains(this.div, node) +}; + +ContentEditableInput.prototype.focus = function () { + if (this.cm.options.readOnly != "nocursor") { + if (!this.selectionInEditor()) + { this.showSelection(this.prepareSelection(), true); } + this.div.focus(); + } +}; +ContentEditableInput.prototype.blur = function () { this.div.blur(); }; +ContentEditableInput.prototype.getField = function () { return this.div }; + +ContentEditableInput.prototype.supportsTouch = function () { return true }; + +ContentEditableInput.prototype.receivedFocus = function () { + var input = this; + if (this.selectionInEditor()) + { this.pollSelection(); } + else + { runInOp(this.cm, function () { return input.cm.curOp.selectionChanged = true; }); } + + function poll() { + if (input.cm.state.focused) { + input.pollSelection(); + input.polling.set(input.cm.options.pollInterval, poll); + } + } + this.polling.set(this.cm.options.pollInterval, poll); +}; + +ContentEditableInput.prototype.selectionChanged = function () { + var sel = window.getSelection(); + return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset || + sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset +}; + +ContentEditableInput.prototype.pollSelection = function () { + if (this.readDOMTimeout != null || this.gracePeriod || !this.selectionChanged()) { return } + var sel = window.getSelection(), cm = this.cm; + // On Android Chrome (version 56, at least), backspacing into an + // uneditable block element will put the cursor in that element, + // and then, because it's not editable, hide the virtual keyboard. + // Because Android doesn't allow us to actually detect backspace + // presses in a sane way, this code checks for when that happens + // and simulates a backspace press in this case. + if (android && chrome && this.cm.options.gutters.length && isInGutter(sel.anchorNode)) { + this.cm.triggerOnKeyDown({type: "keydown", keyCode: 8, preventDefault: Math.abs}); + this.blur(); + this.focus(); + return + } + if (this.composing) { return } + this.rememberSelection(); + var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset); + var head = domToPos(cm, sel.focusNode, sel.focusOffset); + if (anchor && head) { runInOp(cm, function () { + setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll); + if (anchor.bad || head.bad) { cm.curOp.selectionChanged = true; } + }); } +}; + +ContentEditableInput.prototype.pollContent = function () { + if (this.readDOMTimeout != null) { + clearTimeout(this.readDOMTimeout); + this.readDOMTimeout = null; + } + + var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary(); + var from = sel.from(), to = sel.to(); + if (from.ch == 0 && from.line > cm.firstLine()) + { from = Pos(from.line - 1, getLine(cm.doc, from.line - 1).length); } + if (to.ch == getLine(cm.doc, to.line).text.length && to.line < cm.lastLine()) + { to = Pos(to.line + 1, 0); } + if (from.line < display.viewFrom || to.line > display.viewTo - 1) { return false } + + var fromIndex, fromLine, fromNode; + if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) { + fromLine = lineNo(display.view[0].line); + fromNode = display.view[0].node; + } else { + fromLine = lineNo(display.view[fromIndex].line); + fromNode = display.view[fromIndex - 1].node.nextSibling; + } + var toIndex = findViewIndex(cm, to.line); + var toLine, toNode; + if (toIndex == display.view.length - 1) { + toLine = display.viewTo - 1; + toNode = display.lineDiv.lastChild; + } else { + toLine = lineNo(display.view[toIndex + 1].line) - 1; + toNode = display.view[toIndex + 1].node.previousSibling; + } + + if (!fromNode) { return false } + var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine)); + var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length)); + while (newText.length > 1 && oldText.length > 1) { + if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; } + else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; } + else { break } + } + + var cutFront = 0, cutEnd = 0; + var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length); + while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront)) + { ++cutFront; } + var newBot = lst(newText), oldBot = lst(oldText); + var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0), + oldBot.length - (oldText.length == 1 ? cutFront : 0)); + while (cutEnd < maxCutEnd && + newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) + { ++cutEnd; } + // Try to move start of change to start of selection if ambiguous + if (newText.length == 1 && oldText.length == 1 && fromLine == from.line) { + while (cutFront && cutFront > from.ch && + newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) { + cutFront--; + cutEnd++; + } + } + + newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd).replace(/^\u200b+/, ""); + newText[0] = newText[0].slice(cutFront).replace(/\u200b+$/, ""); + + var chFrom = Pos(fromLine, cutFront); + var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0); + if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) { + replaceRange(cm.doc, newText, chFrom, chTo, "+input"); + return true + } +}; + +ContentEditableInput.prototype.ensurePolled = function () { + this.forceCompositionEnd(); +}; +ContentEditableInput.prototype.reset = function () { + this.forceCompositionEnd(); +}; +ContentEditableInput.prototype.forceCompositionEnd = function () { + if (!this.composing) { return } + clearTimeout(this.readDOMTimeout); + this.composing = null; + this.updateFromDOM(); + this.div.blur(); + this.div.focus(); +}; +ContentEditableInput.prototype.readFromDOMSoon = function () { + var this$1 = this; + + if (this.readDOMTimeout != null) { return } + this.readDOMTimeout = setTimeout(function () { + this$1.readDOMTimeout = null; + if (this$1.composing) { + if (this$1.composing.done) { this$1.composing = null; } + else { return } + } + this$1.updateFromDOM(); + }, 80); +}; + +ContentEditableInput.prototype.updateFromDOM = function () { + var this$1 = this; + + if (this.cm.isReadOnly() || !this.pollContent()) + { runInOp(this.cm, function () { return regChange(this$1.cm); }); } +}; + +ContentEditableInput.prototype.setUneditable = function (node) { + node.contentEditable = "false"; +}; + +ContentEditableInput.prototype.onKeyPress = function (e) { + if (e.charCode == 0) { return } + e.preventDefault(); + if (!this.cm.isReadOnly()) + { operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0); } +}; + +ContentEditableInput.prototype.readOnlyChanged = function (val) { + this.div.contentEditable = String(val != "nocursor"); +}; + +ContentEditableInput.prototype.onContextMenu = function () {}; +ContentEditableInput.prototype.resetPosition = function () {}; + +ContentEditableInput.prototype.needsContentAttribute = true; + +function posToDOM(cm, pos) { + var view = findViewForLine(cm, pos.line); + if (!view || view.hidden) { return null } + var line = getLine(cm.doc, pos.line); + var info = mapFromLineView(view, line, pos.line); + + var order = getOrder(line, cm.doc.direction), side = "left"; + if (order) { + var partPos = getBidiPartAt(order, pos.ch); + side = partPos % 2 ? "right" : "left"; + } + var result = nodeAndOffsetInLineMap(info.map, pos.ch, side); + result.offset = result.collapse == "right" ? result.end : result.start; + return result +} + +function isInGutter(node) { + for (var scan = node; scan; scan = scan.parentNode) + { if (/CodeMirror-gutter-wrapper/.test(scan.className)) { return true } } + return false +} + +function badPos(pos, bad) { if (bad) { pos.bad = true; } return pos } + +function domTextBetween(cm, from, to, fromLine, toLine) { + var text = "", closing = false, lineSep = cm.doc.lineSeparator(); + function recognizeMarker(id) { return function (marker) { return marker.id == id; } } + function close() { + if (closing) { + text += lineSep; + closing = false; + } + } + function addText(str) { + if (str) { + close(); + text += str; + } + } + function walk(node) { + if (node.nodeType == 1) { + var cmText = node.getAttribute("cm-text"); + if (cmText != null) { + addText(cmText || node.textContent.replace(/\u200b/g, "")); + return + } + var markerID = node.getAttribute("cm-marker"), range$$1; + if (markerID) { + var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID)); + if (found.length && (range$$1 = found[0].find())) + { addText(getBetween(cm.doc, range$$1.from, range$$1.to).join(lineSep)); } + return + } + if (node.getAttribute("contenteditable") == "false") { return } + var isBlock = /^(pre|div|p)$/i.test(node.nodeName); + if (isBlock) { close(); } + for (var i = 0; i < node.childNodes.length; i++) + { walk(node.childNodes[i]); } + if (isBlock) { closing = true; } + } else if (node.nodeType == 3) { + addText(node.nodeValue); + } + } + for (;;) { + walk(from); + if (from == to) { break } + from = from.nextSibling; + } + return text +} + +function domToPos(cm, node, offset) { + var lineNode; + if (node == cm.display.lineDiv) { + lineNode = cm.display.lineDiv.childNodes[offset]; + if (!lineNode) { return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true) } + node = null; offset = 0; + } else { + for (lineNode = node;; lineNode = lineNode.parentNode) { + if (!lineNode || lineNode == cm.display.lineDiv) { return null } + if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) { break } + } + } + for (var i = 0; i < cm.display.view.length; i++) { + var lineView = cm.display.view[i]; + if (lineView.node == lineNode) + { return locateNodeInLineView(lineView, node, offset) } + } +} + +function locateNodeInLineView(lineView, node, offset) { + var wrapper = lineView.text.firstChild, bad = false; + if (!node || !contains(wrapper, node)) { return badPos(Pos(lineNo(lineView.line), 0), true) } + if (node == wrapper) { + bad = true; + node = wrapper.childNodes[offset]; + offset = 0; + if (!node) { + var line = lineView.rest ? lst(lineView.rest) : lineView.line; + return badPos(Pos(lineNo(line), line.text.length), bad) + } + } + + var textNode = node.nodeType == 3 ? node : null, topNode = node; + if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) { + textNode = node.firstChild; + if (offset) { offset = textNode.nodeValue.length; } + } + while (topNode.parentNode != wrapper) { topNode = topNode.parentNode; } + var measure = lineView.measure, maps = measure.maps; + + function find(textNode, topNode, offset) { + for (var i = -1; i < (maps ? maps.length : 0); i++) { + var map$$1 = i < 0 ? measure.map : maps[i]; + for (var j = 0; j < map$$1.length; j += 3) { + var curNode = map$$1[j + 2]; + if (curNode == textNode || curNode == topNode) { + var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]); + var ch = map$$1[j] + offset; + if (offset < 0 || curNode != textNode) { ch = map$$1[j + (offset ? 1 : 0)]; } + return Pos(line, ch) + } + } + } + } + var found = find(textNode, topNode, offset); + if (found) { return badPos(found, bad) } + + // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems + for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) { + found = find(after, after.firstChild, 0); + if (found) + { return badPos(Pos(found.line, found.ch - dist), bad) } + else + { dist += after.textContent.length; } + } + for (var before = topNode.previousSibling, dist$1 = offset; before; before = before.previousSibling) { + found = find(before, before.firstChild, -1); + if (found) + { return badPos(Pos(found.line, found.ch + dist$1), bad) } + else + { dist$1 += before.textContent.length; } + } +} + +// TEXTAREA INPUT STYLE + +var TextareaInput = function(cm) { + this.cm = cm; + // See input.poll and input.reset + this.prevInput = ""; + + // Flag that indicates whether we expect input to appear real soon + // now (after some event like 'keypress' or 'input') and are + // polling intensively. + this.pollingFast = false; + // Self-resetting timeout for the poller + this.polling = new Delayed(); + // Tracks when input.reset has punted to just putting a short + // string into the textarea instead of the full selection. + this.inaccurateSelection = false; + // Used to work around IE issue with selection being forgotten when focus moves away from textarea + this.hasSelection = false; + this.composing = null; +}; + +TextareaInput.prototype.init = function (display) { + var this$1 = this; + + var input = this, cm = this.cm; + + // Wraps and hides input textarea + var div = this.wrapper = hiddenTextarea(); + // The semihidden textarea that is focused when the editor is + // focused, and receives input. + var te = this.textarea = div.firstChild; + display.wrapper.insertBefore(div, display.wrapper.firstChild); + + // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore) + if (ios) { te.style.width = "0px"; } + + on(te, "input", function () { + if (ie && ie_version >= 9 && this$1.hasSelection) { this$1.hasSelection = null; } + input.poll(); + }); + + on(te, "paste", function (e) { + if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return } + + cm.state.pasteIncoming = true; + input.fastPoll(); + }); + + function prepareCopyCut(e) { + if (signalDOMEvent(cm, e)) { return } + if (cm.somethingSelected()) { + setLastCopied({lineWise: false, text: cm.getSelections()}); + if (input.inaccurateSelection) { + input.prevInput = ""; + input.inaccurateSelection = false; + te.value = lastCopied.text.join("\n"); + selectInput(te); + } + } else if (!cm.options.lineWiseCopyCut) { + return + } else { + var ranges = copyableRanges(cm); + setLastCopied({lineWise: true, text: ranges.text}); + if (e.type == "cut") { + cm.setSelections(ranges.ranges, null, sel_dontScroll); + } else { + input.prevInput = ""; + te.value = ranges.text.join("\n"); + selectInput(te); + } + } + if (e.type == "cut") { cm.state.cutIncoming = true; } + } + on(te, "cut", prepareCopyCut); + on(te, "copy", prepareCopyCut); + + on(display.scroller, "paste", function (e) { + if (eventInWidget(display, e) || signalDOMEvent(cm, e)) { return } + cm.state.pasteIncoming = true; + input.focus(); + }); + + // Prevent normal selection in the editor (we handle our own) + on(display.lineSpace, "selectstart", function (e) { + if (!eventInWidget(display, e)) { e_preventDefault(e); } + }); + + on(te, "compositionstart", function () { + var start = cm.getCursor("from"); + if (input.composing) { input.composing.range.clear(); } + input.composing = { + start: start, + range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"}) + }; + }); + on(te, "compositionend", function () { + if (input.composing) { + input.poll(); + input.composing.range.clear(); + input.composing = null; + } + }); +}; + +TextareaInput.prototype.prepareSelection = function () { + // Redraw the selection and/or cursor + var cm = this.cm, display = cm.display, doc = cm.doc; + var result = prepareSelection(cm); + + // Move the hidden textarea near the cursor to prevent scrolling artifacts + if (cm.options.moveInputWithCursor) { + var headPos = cursorCoords(cm, doc.sel.primary().head, "div"); + var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect(); + result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10, + headPos.top + lineOff.top - wrapOff.top)); + result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10, + headPos.left + lineOff.left - wrapOff.left)); + } + + return result +}; + +TextareaInput.prototype.showSelection = function (drawn) { + var cm = this.cm, display = cm.display; + removeChildrenAndAdd(display.cursorDiv, drawn.cursors); + removeChildrenAndAdd(display.selectionDiv, drawn.selection); + if (drawn.teTop != null) { + this.wrapper.style.top = drawn.teTop + "px"; + this.wrapper.style.left = drawn.teLeft + "px"; + } +}; + +// Reset the input to correspond to the selection (or to be empty, +// when not typing and nothing is selected) +TextareaInput.prototype.reset = function (typing) { + if (this.contextMenuPending) { return } + var minimal, selected, cm = this.cm, doc = cm.doc; + if (cm.somethingSelected()) { + this.prevInput = ""; + var range$$1 = doc.sel.primary(); + minimal = hasCopyEvent && + (range$$1.to().line - range$$1.from().line > 100 || (selected = cm.getSelection()).length > 1000); + var content = minimal ? "-" : selected || cm.getSelection(); + this.textarea.value = content; + if (cm.state.focused) { selectInput(this.textarea); } + if (ie && ie_version >= 9) { this.hasSelection = content; } + } else if (!typing) { + this.prevInput = this.textarea.value = ""; + if (ie && ie_version >= 9) { this.hasSelection = null; } + } + this.inaccurateSelection = minimal; +}; + +TextareaInput.prototype.getField = function () { return this.textarea }; + +TextareaInput.prototype.supportsTouch = function () { return false }; + +TextareaInput.prototype.focus = function () { + if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt() != this.textarea)) { + try { this.textarea.focus(); } + catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM + } +}; + +TextareaInput.prototype.blur = function () { this.textarea.blur(); }; + +TextareaInput.prototype.resetPosition = function () { + this.wrapper.style.top = this.wrapper.style.left = 0; +}; + +TextareaInput.prototype.receivedFocus = function () { this.slowPoll(); }; + +// Poll for input changes, using the normal rate of polling. This +// runs as long as the editor is focused. +TextareaInput.prototype.slowPoll = function () { + var this$1 = this; + + if (this.pollingFast) { return } + this.polling.set(this.cm.options.pollInterval, function () { + this$1.poll(); + if (this$1.cm.state.focused) { this$1.slowPoll(); } + }); +}; + +// When an event has just come in that is likely to add or change +// something in the input textarea, we poll faster, to ensure that +// the change appears on the screen quickly. +TextareaInput.prototype.fastPoll = function () { + var missed = false, input = this; + input.pollingFast = true; + function p() { + var changed = input.poll(); + if (!changed && !missed) {missed = true; input.polling.set(60, p);} + else {input.pollingFast = false; input.slowPoll();} + } + input.polling.set(20, p); +}; + +// Read input from the textarea, and update the document to match. +// When something is selected, it is present in the textarea, and +// selected (unless it is huge, in which case a placeholder is +// used). When nothing is selected, the cursor sits after previously +// seen text (can be empty), which is stored in prevInput (we must +// not reset the textarea when typing, because that breaks IME). +TextareaInput.prototype.poll = function () { + var this$1 = this; + + var cm = this.cm, input = this.textarea, prevInput = this.prevInput; + // Since this is called a *lot*, try to bail out as cheaply as + // possible when it is clear that nothing happened. hasSelection + // will be the case when there is a lot of text in the textarea, + // in which case reading its value would be expensive. + if (this.contextMenuPending || !cm.state.focused || + (hasSelection(input) && !prevInput && !this.composing) || + cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq) + { return false } + + var text = input.value; + // If nothing changed, bail. + if (text == prevInput && !cm.somethingSelected()) { return false } + // Work around nonsensical selection resetting in IE9/10, and + // inexplicable appearance of private area unicode characters on + // some key combos in Mac (#2689). + if (ie && ie_version >= 9 && this.hasSelection === text || + mac && /[\uf700-\uf7ff]/.test(text)) { + cm.display.input.reset(); + return false + } + + if (cm.doc.sel == cm.display.selForContextMenu) { + var first = text.charCodeAt(0); + if (first == 0x200b && !prevInput) { prevInput = "\u200b"; } + if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo") } + } + // Find the part of the input that is actually new + var same = 0, l = Math.min(prevInput.length, text.length); + while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) { ++same; } + + runInOp(cm, function () { + applyTextInput(cm, text.slice(same), prevInput.length - same, + null, this$1.composing ? "*compose" : null); + + // Don't leave long text in the textarea, since it makes further polling slow + if (text.length > 1000 || text.indexOf("\n") > -1) { input.value = this$1.prevInput = ""; } + else { this$1.prevInput = text; } + + if (this$1.composing) { + this$1.composing.range.clear(); + this$1.composing.range = cm.markText(this$1.composing.start, cm.getCursor("to"), + {className: "CodeMirror-composing"}); + } + }); + return true +}; + +TextareaInput.prototype.ensurePolled = function () { + if (this.pollingFast && this.poll()) { this.pollingFast = false; } +}; + +TextareaInput.prototype.onKeyPress = function () { + if (ie && ie_version >= 9) { this.hasSelection = null; } + this.fastPoll(); +}; + +TextareaInput.prototype.onContextMenu = function (e) { + var input = this, cm = input.cm, display = cm.display, te = input.textarea; + var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop; + if (!pos || presto) { return } // Opera is difficult. + + // Reset the current text selection only if the click is done outside of the selection + // and 'resetSelectionOnContextMenu' option is true. + var reset = cm.options.resetSelectionOnContextMenu; + if (reset && cm.doc.sel.contains(pos) == -1) + { operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll); } + + var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText; + input.wrapper.style.cssText = "position: absolute"; + var wrapperBox = input.wrapper.getBoundingClientRect(); + te.style.cssText = "position: absolute; width: 30px; height: 30px;\n top: " + (e.clientY - wrapperBox.top - 5) + "px; left: " + (e.clientX - wrapperBox.left - 5) + "px;\n z-index: 1000; background: " + (ie ? "rgba(255, 255, 255, .05)" : "transparent") + ";\n outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);"; + var oldScrollY; + if (webkit) { oldScrollY = window.scrollY; } // Work around Chrome issue (#2712) + display.input.focus(); + if (webkit) { window.scrollTo(null, oldScrollY); } + display.input.reset(); + // Adds "Select all" to context menu in FF + if (!cm.somethingSelected()) { te.value = input.prevInput = " "; } + input.contextMenuPending = true; + display.selForContextMenu = cm.doc.sel; + clearTimeout(display.detectingSelectAll); + + // Select-all will be greyed out if there's nothing to select, so + // this adds a zero-width space so that we can later check whether + // it got selected. + function prepareSelectAllHack() { + if (te.selectionStart != null) { + var selected = cm.somethingSelected(); + var extval = "\u200b" + (selected ? te.value : ""); + te.value = "\u21da"; // Used to catch context-menu undo + te.value = extval; + input.prevInput = selected ? "" : "\u200b"; + te.selectionStart = 1; te.selectionEnd = extval.length; + // Re-set this, in case some other handler touched the + // selection in the meantime. + display.selForContextMenu = cm.doc.sel; + } + } + function rehide() { + input.contextMenuPending = false; + input.wrapper.style.cssText = oldWrapperCSS; + te.style.cssText = oldCSS; + if (ie && ie_version < 9) { display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos); } + + // Try to detect the user choosing select-all + if (te.selectionStart != null) { + if (!ie || (ie && ie_version < 9)) { prepareSelectAllHack(); } + var i = 0, poll = function () { + if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 && + te.selectionEnd > 0 && input.prevInput == "\u200b") { + operation(cm, selectAll)(cm); + } else if (i++ < 10) { + display.detectingSelectAll = setTimeout(poll, 500); + } else { + display.selForContextMenu = null; + display.input.reset(); + } + }; + display.detectingSelectAll = setTimeout(poll, 200); + } + } + + if (ie && ie_version >= 9) { prepareSelectAllHack(); } + if (captureRightClick) { + e_stop(e); + var mouseup = function () { + off(window, "mouseup", mouseup); + setTimeout(rehide, 20); + }; + on(window, "mouseup", mouseup); + } else { + setTimeout(rehide, 50); + } +}; + +TextareaInput.prototype.readOnlyChanged = function (val) { + if (!val) { this.reset(); } +}; + +TextareaInput.prototype.setUneditable = function () {}; + +TextareaInput.prototype.needsContentAttribute = false; + +function fromTextArea(textarea, options) { + options = options ? copyObj(options) : {}; + options.value = textarea.value; + if (!options.tabindex && textarea.tabIndex) + { options.tabindex = textarea.tabIndex; } + if (!options.placeholder && textarea.placeholder) + { options.placeholder = textarea.placeholder; } + // Set autofocus to true if this textarea is focused, or if it has + // autofocus and no other element is focused. + if (options.autofocus == null) { + var hasFocus = activeElt(); + options.autofocus = hasFocus == textarea || + textarea.getAttribute("autofocus") != null && hasFocus == document.body; + } + + function save() {textarea.value = cm.getValue();} + + var realSubmit; + if (textarea.form) { + on(textarea.form, "submit", save); + // Deplorable hack to make the submit method do the right thing. + if (!options.leaveSubmitMethodAlone) { + var form = textarea.form; + realSubmit = form.submit; + try { + var wrappedSubmit = form.submit = function () { + save(); + form.submit = realSubmit; + form.submit(); + form.submit = wrappedSubmit; + }; + } catch(e) {} + } + } + + options.finishInit = function (cm) { + cm.save = save; + cm.getTextArea = function () { return textarea; }; + cm.toTextArea = function () { + cm.toTextArea = isNaN; // Prevent this from being ran twice + save(); + textarea.parentNode.removeChild(cm.getWrapperElement()); + textarea.style.display = ""; + if (textarea.form) { + off(textarea.form, "submit", save); + if (typeof textarea.form.submit == "function") + { textarea.form.submit = realSubmit; } + } + }; + }; + + textarea.style.display = "none"; + var cm = CodeMirror$1(function (node) { return textarea.parentNode.insertBefore(node, textarea.nextSibling); }, + options); + return cm +} + +function addLegacyProps(CodeMirror) { + CodeMirror.off = off; + CodeMirror.on = on; + CodeMirror.wheelEventPixels = wheelEventPixels; + CodeMirror.Doc = Doc; + CodeMirror.splitLines = splitLinesAuto; + CodeMirror.countColumn = countColumn; + CodeMirror.findColumn = findColumn; + CodeMirror.isWordChar = isWordCharBasic; + CodeMirror.Pass = Pass; + CodeMirror.signal = signal; + CodeMirror.Line = Line; + CodeMirror.changeEnd = changeEnd; + CodeMirror.scrollbarModel = scrollbarModel; + CodeMirror.Pos = Pos; + CodeMirror.cmpPos = cmp; + CodeMirror.modes = modes; + CodeMirror.mimeModes = mimeModes; + CodeMirror.resolveMode = resolveMode; + CodeMirror.getMode = getMode; + CodeMirror.modeExtensions = modeExtensions; + CodeMirror.extendMode = extendMode; + CodeMirror.copyState = copyState; + CodeMirror.startState = startState; + CodeMirror.innerMode = innerMode; + CodeMirror.commands = commands; + CodeMirror.keyMap = keyMap; + CodeMirror.keyName = keyName; + CodeMirror.isModifierKey = isModifierKey; + CodeMirror.lookupKey = lookupKey; + CodeMirror.normalizeKeyMap = normalizeKeyMap; + CodeMirror.StringStream = StringStream; + CodeMirror.SharedTextMarker = SharedTextMarker; + CodeMirror.TextMarker = TextMarker; + CodeMirror.LineWidget = LineWidget; + CodeMirror.e_preventDefault = e_preventDefault; + CodeMirror.e_stopPropagation = e_stopPropagation; + CodeMirror.e_stop = e_stop; + CodeMirror.addClass = addClass; + CodeMirror.contains = contains; + CodeMirror.rmClass = rmClass; + CodeMirror.keyNames = keyNames; +} + +// EDITOR CONSTRUCTOR + +defineOptions(CodeMirror$1); + +addEditorMethods(CodeMirror$1); + +// Set up methods on CodeMirror's prototype to redirect to the editor's document. +var dontDelegate = "iter insert remove copy getEditor constructor".split(" "); +for (var prop in Doc.prototype) { if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0) + { CodeMirror$1.prototype[prop] = (function(method) { + return function() {return method.apply(this.doc, arguments)} + })(Doc.prototype[prop]); } } + +eventMixin(Doc); + +// INPUT HANDLING + +CodeMirror$1.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput}; + +// MODE DEFINITION AND QUERYING + +// Extra arguments are stored as the mode's dependencies, which is +// used by (legacy) mechanisms like loadmode.js to automatically +// load a mode. (Preferred mechanism is the require/define calls.) +CodeMirror$1.defineMode = function(name/*, mode, …*/) { + if (!CodeMirror$1.defaults.mode && name != "null") { CodeMirror$1.defaults.mode = name; } + defineMode.apply(this, arguments); +}; + +CodeMirror$1.defineMIME = defineMIME; + +// Minimal default mode. +CodeMirror$1.defineMode("null", function () { return ({token: function (stream) { return stream.skipToEnd(); }}); }); +CodeMirror$1.defineMIME("text/plain", "null"); + +// EXTENSIONS + +CodeMirror$1.defineExtension = function (name, func) { + CodeMirror$1.prototype[name] = func; +}; +CodeMirror$1.defineDocExtension = function (name, func) { + Doc.prototype[name] = func; +}; + +CodeMirror$1.fromTextArea = fromTextArea; + +addLegacyProps(CodeMirror$1); + +CodeMirror$1.version = "5.25.0"; + +return CodeMirror$1; + +})));