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// CodeMirror version 3.14 |
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// |
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// CodeMirror is the only global var we claim |
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window.CodeMirror = (function() { |
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"use strict"; |
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|
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// BROWSER SNIFFING |
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|
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// Crude, but necessary to handle a number of hard-to-feature-detect |
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// bugs and behavior differences. |
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var gecko = /gecko\/\d/i.test(navigator.userAgent); |
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var ie = /MSIE \d/.test(navigator.userAgent); |
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var ie_lt8 = ie && (document.documentMode == null || document.documentMode < 8); |
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var ie_lt9 = ie && (document.documentMode == null || document.documentMode < 9); |
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var webkit = /WebKit\//.test(navigator.userAgent); |
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var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(navigator.userAgent); |
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var chrome = /Chrome\//.test(navigator.userAgent); |
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var opera = /Opera\//.test(navigator.userAgent); |
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var safari = /Apple Computer/.test(navigator.vendor); |
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var khtml = /KHTML\//.test(navigator.userAgent); |
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var mac_geLion = /Mac OS X 1\d\D([7-9]|\d\d)\D/.test(navigator.userAgent); |
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var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(navigator.userAgent); |
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var phantom = /PhantomJS/.test(navigator.userAgent); |
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|
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var ios = /AppleWebKit/.test(navigator.userAgent) && /Mobile\/\w+/.test(navigator.userAgent); |
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// This is woefully incomplete. Suggestions for alternative methods welcome. |
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var mobile = ios || /Android|webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(navigator.userAgent); |
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var mac = ios || /Mac/.test(navigator.platform); |
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var windows = /windows/i.test(navigator.platform); |
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|
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var opera_version = opera && navigator.userAgent.match(/Version\/(\d*\.\d*)/); |
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if (opera_version) opera_version = Number(opera_version[1]); |
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// Some browsers use the wrong event properties to signal cmd/ctrl on OS X |
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var flipCtrlCmd = mac && (qtwebkit || opera && (opera_version == null || opera_version < 12.11)); |
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var captureMiddleClick = gecko || (ie && !ie_lt9); |
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|
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// Optimize some code when these features are not used |
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var sawReadOnlySpans = false, sawCollapsedSpans = false; |
| 39 |
|
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// CONSTRUCTOR |
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|
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function CodeMirror(place, options) { |
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if (!(this instanceof CodeMirror)) return new CodeMirror(place, options); |
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|
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this.options = options = options || {}; |
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// Determine effective options based on given values and defaults. |
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for (var opt in defaults) if (!options.hasOwnProperty(opt) && defaults.hasOwnProperty(opt)) |
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options[opt] = defaults[opt]; |
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setGuttersForLineNumbers(options); |
| 50 |
|
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var docStart = typeof options.value == "string" ? 0 : options.value.first; |
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var display = this.display = makeDisplay(place, docStart); |
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display.wrapper.CodeMirror = this; |
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updateGutters(this); |
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if (options.autofocus && !mobile) focusInput(this); |
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|
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this.state = {keyMaps: [], |
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overlays: [], |
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modeGen: 0, |
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overwrite: false, focused: false, |
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suppressEdits: false, pasteIncoming: false, |
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draggingText: false, |
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highlight: new Delayed()}; |
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|
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themeChanged(this); |
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if (options.lineWrapping) |
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this.display.wrapper.className += " CodeMirror-wrap"; |
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|
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var doc = options.value; |
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if (typeof doc == "string") doc = new Doc(options.value, options.mode); |
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operation(this, attachDoc)(this, doc); |
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|
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// Override magic textarea content restore that IE sometimes does |
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// on our hidden textarea on reload |
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if (ie) setTimeout(bind(resetInput, this, true), 20); |
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|
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registerEventHandlers(this); |
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// IE throws unspecified error in certain cases, when |
| 79 |
// trying to access activeElement before onload |
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var hasFocus; try { hasFocus = (document.activeElement == display.input); } catch(e) { } |
| 81 |
if (hasFocus || (options.autofocus && !mobile)) setTimeout(bind(onFocus, this), 20); |
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else onBlur(this); |
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|
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operation(this, function() { |
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for (var opt in optionHandlers) |
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if (optionHandlers.propertyIsEnumerable(opt)) |
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optionHandlers[opt](this, options[opt], Init); |
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for (var i = 0; i < initHooks.length; ++i) initHooks[i](this); |
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})(); |
| 90 |
} |
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|
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// DISPLAY CONSTRUCTOR |
| 93 |
|
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function makeDisplay(place, docStart) { |
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var d = {}; |
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|
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var input = d.input = elt("textarea", null, null, "position: absolute; padding: 0; width: 1px; height: 1em; outline: none; font-size: 4px;"); |
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if (webkit) input.style.width = "1000px"; |
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else input.setAttribute("wrap", "off"); |
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// if border: 0; -- iOS fails to open keyboard (issue #1287) |
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if (ios) input.style.border = "1px solid black"; |
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input.setAttribute("autocorrect", "off"); input.setAttribute("autocapitalize", "off"); input.setAttribute("spellcheck", "false"); |
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|
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// Wraps and hides input textarea |
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d.inputDiv = elt("div", [input], null, "overflow: hidden; position: relative; width: 3px; height: 0px;"); |
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// The actual fake scrollbars. |
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d.scrollbarH = elt("div", [elt("div", null, null, "height: 1px")], "CodeMirror-hscrollbar"); |
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d.scrollbarV = elt("div", [elt("div", null, null, "width: 1px")], "CodeMirror-vscrollbar"); |
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d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler"); |
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d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler"); |
| 111 |
// DIVs containing the selection and the actual code |
| 112 |
d.lineDiv = elt("div", null, "CodeMirror-code"); |
| 113 |
d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1"); |
| 114 |
// Blinky cursor, and element used to ensure cursor fits at the end of a line |
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d.cursor = elt("div", "\u00a0", "CodeMirror-cursor"); |
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// Secondary cursor, shown when on a 'jump' in bi-directional text |
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d.otherCursor = elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"); |
| 118 |
// Used to measure text size |
| 119 |
d.measure = elt("div", null, "CodeMirror-measure"); |
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// Wraps everything that needs to exist inside the vertically-padded coordinate system |
| 121 |
d.lineSpace = elt("div", [d.measure, d.selectionDiv, d.lineDiv, d.cursor, d.otherCursor], |
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null, "position: relative; outline: none"); |
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// Moved around its parent to cover visible view |
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d.mover = elt("div", [elt("div", [d.lineSpace], "CodeMirror-lines")], null, "position: relative"); |
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// Set to the height of the text, causes scrolling |
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d.sizer = elt("div", [d.mover], "CodeMirror-sizer"); |
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// D is needed because behavior of elts with overflow: auto and padding is inconsistent across browsers |
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d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerCutOff + "px; width: 1px;"); |
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// Will contain the gutters, if any |
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d.gutters = elt("div", null, "CodeMirror-gutters"); |
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d.lineGutter = null; |
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// Provides scrolling |
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d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll"); |
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d.scroller.setAttribute("tabIndex", "-1"); |
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// The element in which the editor lives. |
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d.wrapper = elt("div", [d.inputDiv, d.scrollbarH, d.scrollbarV, |
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d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror"); |
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// Work around IE7 z-index bug |
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if (ie_lt8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; } |
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if (place.appendChild) place.appendChild(d.wrapper); else place(d.wrapper); |
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|
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// Needed to hide big blue blinking cursor on Mobile Safari |
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if (ios) input.style.width = "0px"; |
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if (!webkit) d.scroller.draggable = true; |
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// Needed to handle Tab key in KHTML |
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if (khtml) { d.inputDiv.style.height = "1px"; d.inputDiv.style.position = "absolute"; } |
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// Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8). |
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else if (ie_lt8) d.scrollbarH.style.minWidth = d.scrollbarV.style.minWidth = "18px"; |
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|
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// Current visible range (may be bigger than the view window). |
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d.viewOffset = d.lastSizeC = 0; |
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d.showingFrom = d.showingTo = docStart; |
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|
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// Used to only resize the line number gutter when necessary (when |
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// the amount of lines crosses a boundary that makes its width change) |
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d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null; |
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// See readInput and resetInput |
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d.prevInput = ""; |
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// Set to true when a non-horizontal-scrolling widget is added. As |
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// an optimization, widget aligning is skipped when d is false. |
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d.alignWidgets = false; |
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// Flag that indicates whether we currently expect input to appear |
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// (after some event like 'keypress' or 'input') and are polling |
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// intensively. |
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d.pollingFast = false; |
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// Self-resetting timeout for the poller |
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d.poll = new Delayed(); |
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|
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d.cachedCharWidth = d.cachedTextHeight = null; |
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d.measureLineCache = []; |
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d.measureLineCachePos = 0; |
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|
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// Tracks when resetInput has punted to just putting a short |
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// string instead of the (large) selection. |
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d.inaccurateSelection = false; |
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|
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// Tracks the maximum line length so that the horizontal scrollbar |
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// can be kept static when scrolling. |
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d.maxLine = null; |
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d.maxLineLength = 0; |
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d.maxLineChanged = false; |
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|
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// Used for measuring wheel scrolling granularity |
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d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null; |
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|
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return d; |
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} |
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|
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// STATE UPDATES |
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|
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// Used to get the editor into a consistent state again when options change. |
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|
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function loadMode(cm) { |
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cm.doc.mode = CodeMirror.getMode(cm.options, cm.doc.modeOption); |
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cm.doc.iter(function(line) { |
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if (line.stateAfter) line.stateAfter = null; |
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if (line.styles) line.styles = null; |
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}); |
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cm.doc.frontier = cm.doc.first; |
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startWorker(cm, 100); |
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cm.state.modeGen++; |
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if (cm.curOp) regChange(cm); |
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} |
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|
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function wrappingChanged(cm) { |
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if (cm.options.lineWrapping) { |
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cm.display.wrapper.className += " CodeMirror-wrap"; |
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cm.display.sizer.style.minWidth = ""; |
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} else { |
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cm.display.wrapper.className = cm.display.wrapper.className.replace(" CodeMirror-wrap", ""); |
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computeMaxLength(cm); |
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} |
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estimateLineHeights(cm); |
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regChange(cm); |
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clearCaches(cm); |
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setTimeout(function(){updateScrollbars(cm);}, 100); |
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} |
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|
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function estimateHeight(cm) { |
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var th = textHeight(cm.display), wrapping = cm.options.lineWrapping; |
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var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3); |
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return function(line) { |
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if (lineIsHidden(cm.doc, line)) |
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return 0; |
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else if (wrapping) |
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return (Math.ceil(line.text.length / perLine) || 1) * th; |
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else |
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return th; |
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}; |
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} |
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|
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function estimateLineHeights(cm) { |
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var doc = cm.doc, est = estimateHeight(cm); |
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doc.iter(function(line) { |
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var estHeight = est(line); |
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if (estHeight != line.height) updateLineHeight(line, estHeight); |
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}); |
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} |
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|
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function keyMapChanged(cm) { |
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var map = keyMap[cm.options.keyMap], style = map.style; |
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cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-keymap-\S+/g, "") + |
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(style ? " cm-keymap-" + style : ""); |
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cm.state.disableInput = map.disableInput; |
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} |
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|
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function themeChanged(cm) { |
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cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") + |
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cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-"); |
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clearCaches(cm); |
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} |
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|
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function guttersChanged(cm) { |
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updateGutters(cm); |
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regChange(cm); |
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setTimeout(function(){alignHorizontally(cm);}, 20); |
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} |
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|
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function updateGutters(cm) { |
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var gutters = cm.display.gutters, specs = cm.options.gutters; |
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removeChildren(gutters); |
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for (var i = 0; i < specs.length; ++i) { |
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var gutterClass = specs[i]; |
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var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass)); |
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if (gutterClass == "CodeMirror-linenumbers") { |
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cm.display.lineGutter = gElt; |
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gElt.style.width = (cm.display.lineNumWidth || 1) + "px"; |
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} |
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} |
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gutters.style.display = i ? "" : "none"; |
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} |
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|
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function lineLength(doc, line) { |
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if (line.height == 0) return 0; |
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var len = line.text.length, merged, cur = line; |
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while (merged = collapsedSpanAtStart(cur)) { |
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var found = merged.find(); |
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cur = getLine(doc, found.from.line); |
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len += found.from.ch - found.to.ch; |
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} |
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cur = line; |
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while (merged = collapsedSpanAtEnd(cur)) { |
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var found = merged.find(); |
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len -= cur.text.length - found.from.ch; |
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cur = getLine(doc, found.to.line); |
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len += cur.text.length - found.to.ch; |
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} |
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return len; |
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} |
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|
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function computeMaxLength(cm) { |
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var d = cm.display, doc = cm.doc; |
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d.maxLine = getLine(doc, doc.first); |
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d.maxLineLength = lineLength(doc, d.maxLine); |
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d.maxLineChanged = true; |
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doc.iter(function(line) { |
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var len = lineLength(doc, line); |
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if (len > d.maxLineLength) { |
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d.maxLineLength = len; |
| 300 |
d.maxLine = line; |
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} |
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}); |
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} |
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|
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// Make sure the gutters options contains the element |
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// "CodeMirror-linenumbers" when the lineNumbers option is true. |
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function setGuttersForLineNumbers(options) { |
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var found = false; |
| 309 |
for (var i = 0; i < options.gutters.length; ++i) { |
| 310 |
if (options.gutters[i] == "CodeMirror-linenumbers") { |
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if (options.lineNumbers) found = true; |
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else options.gutters.splice(i--, 1); |
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} |
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} |
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if (!found && options.lineNumbers) |
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options.gutters.push("CodeMirror-linenumbers"); |
| 317 |
} |
| 318 |
|
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// SCROLLBARS |
| 320 |
|
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// Re-synchronize the fake scrollbars with the actual size of the |
| 322 |
// content. Optionally force a scrollTop. |
| 323 |
function updateScrollbars(cm) { |
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var d = cm.display, docHeight = cm.doc.height; |
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var totalHeight = docHeight + paddingVert(d); |
| 326 |
d.sizer.style.minHeight = d.heightForcer.style.top = totalHeight + "px"; |
| 327 |
d.gutters.style.height = Math.max(totalHeight, d.scroller.clientHeight - scrollerCutOff) + "px"; |
| 328 |
var scrollHeight = Math.max(totalHeight, d.scroller.scrollHeight); |
| 329 |
var needsH = d.scroller.scrollWidth > (d.scroller.clientWidth + 1); |
| 330 |
var needsV = scrollHeight > (d.scroller.clientHeight + 1); |
| 331 |
if (needsV) { |
| 332 |
d.scrollbarV.style.display = "block"; |
| 333 |
d.scrollbarV.style.bottom = needsH ? scrollbarWidth(d.measure) + "px" : "0"; |
| 334 |
d.scrollbarV.firstChild.style.height = |
| 335 |
(scrollHeight - d.scroller.clientHeight + d.scrollbarV.clientHeight) + "px"; |
| 336 |
} else d.scrollbarV.style.display = ""; |
| 337 |
if (needsH) { |
| 338 |
d.scrollbarH.style.display = "block"; |
| 339 |
d.scrollbarH.style.right = needsV ? scrollbarWidth(d.measure) + "px" : "0"; |
| 340 |
d.scrollbarH.firstChild.style.width = |
| 341 |
(d.scroller.scrollWidth - d.scroller.clientWidth + d.scrollbarH.clientWidth) + "px"; |
| 342 |
} else d.scrollbarH.style.display = ""; |
| 343 |
if (needsH && needsV) { |
| 344 |
d.scrollbarFiller.style.display = "block"; |
| 345 |
d.scrollbarFiller.style.height = d.scrollbarFiller.style.width = scrollbarWidth(d.measure) + "px"; |
| 346 |
} else d.scrollbarFiller.style.display = ""; |
| 347 |
if (needsH && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) { |
| 348 |
d.gutterFiller.style.display = "block"; |
| 349 |
d.gutterFiller.style.height = scrollbarWidth(d.measure) + "px"; |
| 350 |
d.gutterFiller.style.width = d.gutters.offsetWidth + "px"; |
| 351 |
} else d.gutterFiller.style.display = ""; |
| 352 |
|
| 353 |
if (mac_geLion && scrollbarWidth(d.measure) === 0) |
| 354 |
d.scrollbarV.style.minWidth = d.scrollbarH.style.minHeight = mac_geMountainLion ? "18px" : "12px"; |
| 355 |
} |
| 356 |
|
| 357 |
function visibleLines(display, doc, viewPort) { |
| 358 |
var top = display.scroller.scrollTop, height = display.wrapper.clientHeight; |
| 359 |
if (typeof viewPort == "number") top = viewPort; |
| 360 |
else if (viewPort) {top = viewPort.top; height = viewPort.bottom - viewPort.top;} |
| 361 |
top = Math.floor(top - paddingTop(display)); |
| 362 |
var bottom = Math.ceil(top + height); |
| 363 |
return {from: lineAtHeight(doc, top), to: lineAtHeight(doc, bottom)}; |
| 364 |
} |
| 365 |
|
| 366 |
// LINE NUMBERS |
| 367 |
|
| 368 |
function alignHorizontally(cm) { |
| 369 |
var display = cm.display; |
| 370 |
if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) return; |
| 371 |
var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft; |
| 372 |
var gutterW = display.gutters.offsetWidth, l = comp + "px"; |
| 373 |
for (var n = display.lineDiv.firstChild; n; n = n.nextSibling) if (n.alignable) { |
| 374 |
for (var i = 0, a = n.alignable; i < a.length; ++i) a[i].style.left = l; |
| 375 |
} |
| 376 |
if (cm.options.fixedGutter) |
| 377 |
display.gutters.style.left = (comp + gutterW) + "px"; |
| 378 |
} |
| 379 |
|
| 380 |
function maybeUpdateLineNumberWidth(cm) { |
| 381 |
if (!cm.options.lineNumbers) return false; |
| 382 |
var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display; |
| 383 |
if (last.length != display.lineNumChars) { |
| 384 |
var test = display.measure.appendChild(elt("div", [elt("div", last)], |
| 385 |
"CodeMirror-linenumber CodeMirror-gutter-elt")); |
| 386 |
var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW; |
| 387 |
display.lineGutter.style.width = ""; |
| 388 |
display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding); |
| 389 |
display.lineNumWidth = display.lineNumInnerWidth + padding; |
| 390 |
display.lineNumChars = display.lineNumInnerWidth ? last.length : -1; |
| 391 |
display.lineGutter.style.width = display.lineNumWidth + "px"; |
| 392 |
return true; |
| 393 |
} |
| 394 |
return false; |
| 395 |
} |
| 396 |
|
| 397 |
function lineNumberFor(options, i) { |
| 398 |
return String(options.lineNumberFormatter(i + options.firstLineNumber)); |
| 399 |
} |
| 400 |
function compensateForHScroll(display) { |
| 401 |
return getRect(display.scroller).left - getRect(display.sizer).left; |
| 402 |
} |
| 403 |
|
| 404 |
// DISPLAY DRAWING |
| 405 |
|
| 406 |
function updateDisplay(cm, changes, viewPort) { |
| 407 |
var oldFrom = cm.display.showingFrom, oldTo = cm.display.showingTo, updated; |
| 408 |
var visible = visibleLines(cm.display, cm.doc, viewPort); |
| 409 |
for (;;) { |
| 410 |
if (!updateDisplayInner(cm, changes, visible)) break; |
| 411 |
updated = true; |
| 412 |
updateSelection(cm); |
| 413 |
updateScrollbars(cm); |
| 414 |
|
| 415 |
// Clip forced viewport to actual scrollable area |
| 416 |
if (viewPort) |
| 417 |
viewPort = Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, |
| 418 |
typeof viewPort == "number" ? viewPort : viewPort.top); |
| 419 |
visible = visibleLines(cm.display, cm.doc, viewPort); |
| 420 |
if (visible.from >= cm.display.showingFrom && visible.to <= cm.display.showingTo) |
| 421 |
break; |
| 422 |
changes = []; |
| 423 |
} |
| 424 |
|
| 425 |
if (updated) { |
| 426 |
signalLater(cm, "update", cm); |
| 427 |
if (cm.display.showingFrom != oldFrom || cm.display.showingTo != oldTo) |
| 428 |
signalLater(cm, "viewportChange", cm, cm.display.showingFrom, cm.display.showingTo); |
| 429 |
} |
| 430 |
return updated; |
| 431 |
} |
| 432 |
|
| 433 |
// Uses a set of changes plus the current scroll position to |
| 434 |
// determine which DOM updates have to be made, and makes the |
| 435 |
// updates. |
| 436 |
function updateDisplayInner(cm, changes, visible) { |
| 437 |
var display = cm.display, doc = cm.doc; |
| 438 |
if (!display.wrapper.clientWidth) { |
| 439 |
display.showingFrom = display.showingTo = doc.first; |
| 440 |
display.viewOffset = 0; |
| 441 |
return; |
| 442 |
} |
| 443 |
|
| 444 |
// Bail out if the visible area is already rendered and nothing changed. |
| 445 |
if (changes.length == 0 && |
| 446 |
visible.from > display.showingFrom && visible.to < display.showingTo) |
| 447 |
return; |
| 448 |
|
| 449 |
if (maybeUpdateLineNumberWidth(cm)) |
| 450 |
changes = [{from: doc.first, to: doc.first + doc.size}]; |
| 451 |
var gutterW = display.sizer.style.marginLeft = display.gutters.offsetWidth + "px"; |
| 452 |
display.scrollbarH.style.left = cm.options.fixedGutter ? gutterW : "0"; |
| 453 |
|
| 454 |
// Used to determine which lines need their line numbers updated |
| 455 |
var positionsChangedFrom = Infinity; |
| 456 |
if (cm.options.lineNumbers) |
| 457 |
for (var i = 0; i < changes.length; ++i) |
| 458 |
if (changes[i].diff) { positionsChangedFrom = changes[i].from; break; } |
| 459 |
|
| 460 |
var end = doc.first + doc.size; |
| 461 |
var from = Math.max(visible.from - cm.options.viewportMargin, doc.first); |
| 462 |
var to = Math.min(end, visible.to + cm.options.viewportMargin); |
| 463 |
if (display.showingFrom < from && from - display.showingFrom < 20) from = Math.max(doc.first, display.showingFrom); |
| 464 |
if (display.showingTo > to && display.showingTo - to < 20) to = Math.min(end, display.showingTo); |
| 465 |
if (sawCollapsedSpans) { |
| 466 |
from = lineNo(visualLine(doc, getLine(doc, from))); |
| 467 |
while (to < end && lineIsHidden(doc, getLine(doc, to))) ++to; |
| 468 |
} |
| 469 |
|
| 470 |
// Create a range of theoretically intact lines, and punch holes |
| 471 |
// in that using the change info. |
| 472 |
var intact = [{from: Math.max(display.showingFrom, doc.first), |
| 473 |
to: Math.min(display.showingTo, end)}]; |
| 474 |
if (intact[0].from >= intact[0].to) intact = []; |
| 475 |
else intact = computeIntact(intact, changes); |
| 476 |
// When merged lines are present, we might have to reduce the |
| 477 |
// intact ranges because changes in continued fragments of the |
| 478 |
// intact lines do require the lines to be redrawn. |
| 479 |
if (sawCollapsedSpans) |
| 480 |
for (var i = 0; i < intact.length; ++i) { |
| 481 |
var range = intact[i], merged; |
| 482 |
while (merged = collapsedSpanAtEnd(getLine(doc, range.to - 1))) { |
| 483 |
var newTo = merged.find().from.line; |
| 484 |
if (newTo > range.from) range.to = newTo; |
| 485 |
else { intact.splice(i--, 1); break; } |
| 486 |
} |
| 487 |
} |
| 488 |
|
| 489 |
// Clip off the parts that won't be visible |
| 490 |
var intactLines = 0; |
| 491 |
for (var i = 0; i < intact.length; ++i) { |
| 492 |
var range = intact[i]; |
| 493 |
if (range.from < from) range.from = from; |
| 494 |
if (range.to > to) range.to = to; |
| 495 |
if (range.from >= range.to) intact.splice(i--, 1); |
| 496 |
else intactLines += range.to - range.from; |
| 497 |
} |
| 498 |
if (intactLines == to - from && from == display.showingFrom && to == display.showingTo) { |
| 499 |
updateViewOffset(cm); |
| 500 |
return; |
| 501 |
} |
| 502 |
intact.sort(function(a, b) {return a.from - b.from;}); |
| 503 |
|
| 504 |
// Avoid crashing on IE's "unspecified error" when in iframes |
| 505 |
try { |
| 506 |
var focused = document.activeElement; |
| 507 |
} catch(e) {} |
| 508 |
if (intactLines < (to - from) * .7) display.lineDiv.style.display = "none"; |
| 509 |
patchDisplay(cm, from, to, intact, positionsChangedFrom); |
| 510 |
display.lineDiv.style.display = ""; |
| 511 |
if (focused && document.activeElement != focused && focused.offsetHeight) focused.focus(); |
| 512 |
|
| 513 |
var different = from != display.showingFrom || to != display.showingTo || |
| 514 |
display.lastSizeC != display.wrapper.clientHeight; |
| 515 |
// This is just a bogus formula that detects when the editor is |
| 516 |
// resized or the font size changes. |
| 517 |
if (different) { |
| 518 |
display.lastSizeC = display.wrapper.clientHeight; |
| 519 |
startWorker(cm, 400); |
| 520 |
} |
| 521 |
display.showingFrom = from; display.showingTo = to; |
| 522 |
|
| 523 |
var prevBottom = display.lineDiv.offsetTop; |
| 524 |
for (var node = display.lineDiv.firstChild, height; node; node = node.nextSibling) if (node.lineObj) { |
| 525 |
if (ie_lt8) { |
| 526 |
var bot = node.offsetTop + node.offsetHeight; |
| 527 |
height = bot - prevBottom; |
| 528 |
prevBottom = bot; |
| 529 |
} else { |
| 530 |
var box = getRect(node); |
| 531 |
height = box.bottom - box.top; |
| 532 |
} |
| 533 |
var diff = node.lineObj.height - height; |
| 534 |
if (height < 2) height = textHeight(display); |
| 535 |
if (diff > .001 || diff < -.001) { |
| 536 |
updateLineHeight(node.lineObj, height); |
| 537 |
var widgets = node.lineObj.widgets; |
| 538 |
if (widgets) for (var i = 0; i < widgets.length; ++i) |
| 539 |
widgets[i].height = widgets[i].node.offsetHeight; |
| 540 |
} |
| 541 |
} |
| 542 |
updateViewOffset(cm); |
| 543 |
|
| 544 |
return true; |
| 545 |
} |
| 546 |
|
| 547 |
function updateViewOffset(cm) { |
| 548 |
var off = cm.display.viewOffset = heightAtLine(cm, getLine(cm.doc, cm.display.showingFrom)); |
| 549 |
// Position the mover div to align with the current virtual scroll position |
| 550 |
cm.display.mover.style.top = off + "px"; |
| 551 |
} |
| 552 |
|
| 553 |
function computeIntact(intact, changes) { |
| 554 |
for (var i = 0, l = changes.length || 0; i < l; ++i) { |
| 555 |
var change = changes[i], intact2 = [], diff = change.diff || 0; |
| 556 |
for (var j = 0, l2 = intact.length; j < l2; ++j) { |
| 557 |
var range = intact[j]; |
| 558 |
if (change.to <= range.from && change.diff) { |
| 559 |
intact2.push({from: range.from + diff, to: range.to + diff}); |
| 560 |
} else if (change.to <= range.from || change.from >= range.to) { |
| 561 |
intact2.push(range); |
| 562 |
} else { |
| 563 |
if (change.from > range.from) |
| 564 |
intact2.push({from: range.from, to: change.from}); |
| 565 |
if (change.to < range.to) |
| 566 |
intact2.push({from: change.to + diff, to: range.to + diff}); |
| 567 |
} |
| 568 |
} |
| 569 |
intact = intact2; |
| 570 |
} |
| 571 |
return intact; |
| 572 |
} |
| 573 |
|
| 574 |
function getDimensions(cm) { |
| 575 |
var d = cm.display, left = {}, width = {}; |
| 576 |
for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) { |
| 577 |
left[cm.options.gutters[i]] = n.offsetLeft; |
| 578 |
width[cm.options.gutters[i]] = n.offsetWidth; |
| 579 |
} |
| 580 |
return {fixedPos: compensateForHScroll(d), |
| 581 |
gutterTotalWidth: d.gutters.offsetWidth, |
| 582 |
gutterLeft: left, |
| 583 |
gutterWidth: width, |
| 584 |
wrapperWidth: d.wrapper.clientWidth}; |
| 585 |
} |
| 586 |
|
| 587 |
function patchDisplay(cm, from, to, intact, updateNumbersFrom) { |
| 588 |
var dims = getDimensions(cm); |
| 589 |
var display = cm.display, lineNumbers = cm.options.lineNumbers; |
| 590 |
if (!intact.length && (!webkit || !cm.display.currentWheelTarget)) |
| 591 |
removeChildren(display.lineDiv); |
| 592 |
var container = display.lineDiv, cur = container.firstChild; |
| 593 |
|
| 594 |
function rm(node) { |
| 595 |
var next = node.nextSibling; |
| 596 |
if (webkit && mac && cm.display.currentWheelTarget == node) { |
| 597 |
node.style.display = "none"; |
| 598 |
node.lineObj = null; |
| 599 |
} else { |
| 600 |
node.parentNode.removeChild(node); |
| 601 |
} |
| 602 |
return next; |
| 603 |
} |
| 604 |
|
| 605 |
var nextIntact = intact.shift(), lineN = from; |
| 606 |
cm.doc.iter(from, to, function(line) { |
| 607 |
if (nextIntact && nextIntact.to == lineN) nextIntact = intact.shift(); |
| 608 |
if (lineIsHidden(cm.doc, line)) { |
| 609 |
if (line.height != 0) updateLineHeight(line, 0); |
| 610 |
if (line.widgets && cur.previousSibling) for (var i = 0; i < line.widgets.length; ++i) { |
| 611 |
var w = line.widgets[i]; |
| 612 |
if (w.showIfHidden) { |
| 613 |
var prev = cur.previousSibling; |
| 614 |
if (/pre/i.test(prev.nodeName)) { |
| 615 |
var wrap = elt("div", null, null, "position: relative"); |
| 616 |
prev.parentNode.replaceChild(wrap, prev); |
| 617 |
wrap.appendChild(prev); |
| 618 |
prev = wrap; |
| 619 |
} |
| 620 |
var wnode = prev.appendChild(elt("div", [w.node], "CodeMirror-linewidget")); |
| 621 |
if (!w.handleMouseEvents) wnode.ignoreEvents = true; |
| 622 |
positionLineWidget(w, wnode, prev, dims); |
| 623 |
} |
| 624 |
} |
| 625 |
} else if (nextIntact && nextIntact.from <= lineN && nextIntact.to > lineN) { |
| 626 |
// This line is intact. Skip to the actual node. Update its |
| 627 |
// line number if needed. |
| 628 |
while (cur.lineObj != line) cur = rm(cur); |
| 629 |
if (lineNumbers && updateNumbersFrom <= lineN && cur.lineNumber) |
| 630 |
setTextContent(cur.lineNumber, lineNumberFor(cm.options, lineN)); |
| 631 |
cur = cur.nextSibling; |
| 632 |
} else { |
| 633 |
// For lines with widgets, make an attempt to find and reuse |
| 634 |
// the existing element, so that widgets aren't needlessly |
| 635 |
// removed and re-inserted into the dom |
| 636 |
if (line.widgets) for (var j = 0, search = cur, reuse; search && j < 20; ++j, search = search.nextSibling) |
| 637 |
if (search.lineObj == line && /div/i.test(search.nodeName)) { reuse = search; break; } |
| 638 |
// This line needs to be generated. |
| 639 |
var lineNode = buildLineElement(cm, line, lineN, dims, reuse); |
| 640 |
if (lineNode != reuse) { |
| 641 |
container.insertBefore(lineNode, cur); |
| 642 |
} else { |
| 643 |
while (cur != reuse) cur = rm(cur); |
| 644 |
cur = cur.nextSibling; |
| 645 |
} |
| 646 |
|
| 647 |
lineNode.lineObj = line; |
| 648 |
} |
| 649 |
++lineN; |
| 650 |
}); |
| 651 |
while (cur) cur = rm(cur); |
| 652 |
} |
| 653 |
|
| 654 |
function buildLineElement(cm, line, lineNo, dims, reuse) { |
| 655 |
var lineElement = lineContent(cm, line); |
| 656 |
var markers = line.gutterMarkers, display = cm.display, wrap; |
| 657 |
|
| 658 |
if (!cm.options.lineNumbers && !markers && !line.bgClass && !line.wrapClass && !line.widgets) |
| 659 |
return lineElement; |
| 660 |
|
| 661 |
// Lines with gutter elements, widgets or a background class need |
| 662 |
// to be wrapped again, and have the extra elements added to the |
| 663 |
// wrapper div |
| 664 |
|
| 665 |
if (reuse) { |
| 666 |
reuse.alignable = null; |
| 667 |
var isOk = true, widgetsSeen = 0, insertBefore = null; |
| 668 |
for (var n = reuse.firstChild, next; n; n = next) { |
| 669 |
next = n.nextSibling; |
| 670 |
if (!/\bCodeMirror-linewidget\b/.test(n.className)) { |
| 671 |
reuse.removeChild(n); |
| 672 |
} else { |
| 673 |
for (var i = 0, first = true; i < line.widgets.length; ++i) { |
| 674 |
var widget = line.widgets[i]; |
| 675 |
if (!widget.above) { insertBefore = n; first = false; } |
| 676 |
if (widget.node == n.firstChild) { |
| 677 |
positionLineWidget(widget, n, reuse, dims); |
| 678 |
++widgetsSeen; |
| 679 |
break; |
| 680 |
} |
| 681 |
} |
| 682 |
if (i == line.widgets.length) { isOk = false; break; } |
| 683 |
} |
| 684 |
} |
| 685 |
reuse.insertBefore(lineElement, insertBefore); |
| 686 |
if (isOk && widgetsSeen == line.widgets.length) { |
| 687 |
wrap = reuse; |
| 688 |
reuse.className = line.wrapClass || ""; |
| 689 |
} |
| 690 |
} |
| 691 |
if (!wrap) { |
| 692 |
wrap = elt("div", null, line.wrapClass, "position: relative"); |
| 693 |
wrap.appendChild(lineElement); |
| 694 |
} |
| 695 |
// Kludge to make sure the styled element lies behind the selection (by z-index) |
| 696 |
if (line.bgClass) |
| 697 |
wrap.insertBefore(elt("div", null, line.bgClass + " CodeMirror-linebackground"), wrap.firstChild); |
| 698 |
if (cm.options.lineNumbers || markers) { |
| 699 |
var gutterWrap = wrap.insertBefore(elt("div", null, null, "position: absolute; left: " + |
| 700 |
(cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px"), |
| 701 |
wrap.firstChild); |
| 702 |
if (cm.options.fixedGutter) (wrap.alignable || (wrap.alignable = [])).push(gutterWrap); |
| 703 |
if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"])) |
| 704 |
wrap.lineNumber = gutterWrap.appendChild( |
| 705 |
elt("div", lineNumberFor(cm.options, lineNo), |
| 706 |
"CodeMirror-linenumber CodeMirror-gutter-elt", |
| 707 |
"left: " + dims.gutterLeft["CodeMirror-linenumbers"] + "px; width: " |
| 708 |
+ display.lineNumInnerWidth + "px")); |
| 709 |
if (markers) |
| 710 |
for (var k = 0; k < cm.options.gutters.length; ++k) { |
| 711 |
var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id]; |
| 712 |
if (found) |
| 713 |
gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt", "left: " + |
| 714 |
dims.gutterLeft[id] + "px; width: " + dims.gutterWidth[id] + "px")); |
| 715 |
} |
| 716 |
} |
| 717 |
if (ie_lt8) wrap.style.zIndex = 2; |
| 718 |
if (line.widgets && wrap != reuse) for (var i = 0, ws = line.widgets; i < ws.length; ++i) { |
| 719 |
var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget"); |
| 720 |
if (!widget.handleMouseEvents) node.ignoreEvents = true; |
| 721 |
positionLineWidget(widget, node, wrap, dims); |
| 722 |
if (widget.above) |
| 723 |
wrap.insertBefore(node, cm.options.lineNumbers && line.height != 0 ? gutterWrap : lineElement); |
| 724 |
else |
| 725 |
wrap.appendChild(node); |
| 726 |
signalLater(widget, "redraw"); |
| 727 |
} |
| 728 |
return wrap; |
| 729 |
} |
| 730 |
|
| 731 |
function positionLineWidget(widget, node, wrap, dims) { |
| 732 |
if (widget.noHScroll) { |
| 733 |
(wrap.alignable || (wrap.alignable = [])).push(node); |
| 734 |
var width = dims.wrapperWidth; |
| 735 |
node.style.left = dims.fixedPos + "px"; |
| 736 |
if (!widget.coverGutter) { |
| 737 |
width -= dims.gutterTotalWidth; |
| 738 |
node.style.paddingLeft = dims.gutterTotalWidth + "px"; |
| 739 |
} |
| 740 |
node.style.width = width + "px"; |
| 741 |
} |
| 742 |
if (widget.coverGutter) { |
| 743 |
node.style.zIndex = 5; |
| 744 |
node.style.position = "relative"; |
| 745 |
if (!widget.noHScroll) node.style.marginLeft = -dims.gutterTotalWidth + "px"; |
| 746 |
} |
| 747 |
} |
| 748 |
|
| 749 |
// SELECTION / CURSOR |
| 750 |
|
| 751 |
function updateSelection(cm) { |
| 752 |
var display = cm.display; |
| 753 |
var collapsed = posEq(cm.doc.sel.from, cm.doc.sel.to); |
| 754 |
if (collapsed || cm.options.showCursorWhenSelecting) |
| 755 |
updateSelectionCursor(cm); |
| 756 |
else |
| 757 |
display.cursor.style.display = display.otherCursor.style.display = "none"; |
| 758 |
if (!collapsed) |
| 759 |
updateSelectionRange(cm); |
| 760 |
else |
| 761 |
display.selectionDiv.style.display = "none"; |
| 762 |
|
| 763 |
// Move the hidden textarea near the cursor to prevent scrolling artifacts |
| 764 |
if (cm.options.moveInputWithCursor) { |
| 765 |
var headPos = cursorCoords(cm, cm.doc.sel.head, "div"); |
| 766 |
var wrapOff = getRect(display.wrapper), lineOff = getRect(display.lineDiv); |
| 767 |
display.inputDiv.style.top = Math.max(0, Math.min(display.wrapper.clientHeight - 10, |
| 768 |
headPos.top + lineOff.top - wrapOff.top)) + "px"; |
| 769 |
display.inputDiv.style.left = Math.max(0, Math.min(display.wrapper.clientWidth - 10, |
| 770 |
headPos.left + lineOff.left - wrapOff.left)) + "px"; |
| 771 |
} |
| 772 |
} |
| 773 |
|
| 774 |
// No selection, plain cursor |
| 775 |
function updateSelectionCursor(cm) { |
| 776 |
var display = cm.display, pos = cursorCoords(cm, cm.doc.sel.head, "div"); |
| 777 |
display.cursor.style.left = pos.left + "px"; |
| 778 |
display.cursor.style.top = pos.top + "px"; |
| 779 |
display.cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px"; |
| 780 |
display.cursor.style.display = ""; |
| 781 |
|
| 782 |
if (pos.other) { |
| 783 |
display.otherCursor.style.display = ""; |
| 784 |
display.otherCursor.style.left = pos.other.left + "px"; |
| 785 |
display.otherCursor.style.top = pos.other.top + "px"; |
| 786 |
display.otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px"; |
| 787 |
} else { display.otherCursor.style.display = "none"; } |
| 788 |
} |
| 789 |
|
| 790 |
// Highlight selection |
| 791 |
function updateSelectionRange(cm) { |
| 792 |
var display = cm.display, doc = cm.doc, sel = cm.doc.sel; |
| 793 |
var fragment = document.createDocumentFragment(); |
| 794 |
var clientWidth = display.lineSpace.offsetWidth, pl = paddingLeft(cm.display); |
| 795 |
|
| 796 |
function add(left, top, width, bottom) { |
| 797 |
if (top < 0) top = 0; |
| 798 |
fragment.appendChild(elt("div", null, "CodeMirror-selected", "position: absolute; left: " + left + |
| 799 |
"px; top: " + top + "px; width: " + (width == null ? clientWidth - left : width) + |
| 800 |
"px; height: " + (bottom - top) + "px")); |
| 801 |
} |
| 802 |
|
| 803 |
function drawForLine(line, fromArg, toArg) { |
| 804 |
var lineObj = getLine(doc, line); |
| 805 |
var lineLen = lineObj.text.length; |
| 806 |
var start, end; |
| 807 |
function coords(ch, bias) { |
| 808 |
return charCoords(cm, Pos(line, ch), "div", lineObj, bias); |
| 809 |
} |
| 810 |
|
| 811 |
iterateBidiSections(getOrder(lineObj), fromArg || 0, toArg == null ? lineLen : toArg, function(from, to, dir) { |
| 812 |
var leftPos = coords(from, "left"), rightPos, left, right; |
| 813 |
if (from == to) { |
| 814 |
rightPos = leftPos; |
| 815 |
left = right = leftPos.left; |
| 816 |
} else { |
| 817 |
rightPos = coords(to - 1, "right"); |
| 818 |
if (dir == "rtl") { var tmp = leftPos; leftPos = rightPos; rightPos = tmp; } |
| 819 |
left = leftPos.left; |
| 820 |
right = rightPos.right; |
| 821 |
} |
| 822 |
if (fromArg == null && from == 0) left = pl; |
| 823 |
if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part |
| 824 |
add(left, leftPos.top, null, leftPos.bottom); |
| 825 |
left = pl; |
| 826 |
if (leftPos.bottom < rightPos.top) add(left, leftPos.bottom, null, rightPos.top); |
| 827 |
} |
| 828 |
if (toArg == null && to == lineLen) right = clientWidth; |
| 829 |
if (!start || leftPos.top < start.top || leftPos.top == start.top && leftPos.left < start.left) |
| 830 |
start = leftPos; |
| 831 |
if (!end || rightPos.bottom > end.bottom || rightPos.bottom == end.bottom && rightPos.right > end.right) |
| 832 |
end = rightPos; |
| 833 |
if (left < pl + 1) left = pl; |
| 834 |
add(left, rightPos.top, right - left, rightPos.bottom); |
| 835 |
}); |
| 836 |
return {start: start, end: end}; |
| 837 |
} |
| 838 |
|
| 839 |
if (sel.from.line == sel.to.line) { |
| 840 |
drawForLine(sel.from.line, sel.from.ch, sel.to.ch); |
| 841 |
} else { |
| 842 |
var fromLine = getLine(doc, sel.from.line), toLine = getLine(doc, sel.to.line); |
| 843 |
var singleVLine = visualLine(doc, fromLine) == visualLine(doc, toLine); |
| 844 |
var leftEnd = drawForLine(sel.from.line, sel.from.ch, singleVLine ? fromLine.text.length : null).end; |
| 845 |
var rightStart = drawForLine(sel.to.line, singleVLine ? 0 : null, sel.to.ch).start; |
| 846 |
if (singleVLine) { |
| 847 |
if (leftEnd.top < rightStart.top - 2) { |
| 848 |
add(leftEnd.right, leftEnd.top, null, leftEnd.bottom); |
| 849 |
add(pl, rightStart.top, rightStart.left, rightStart.bottom); |
| 850 |
} else { |
| 851 |
add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom); |
| 852 |
} |
| 853 |
} |
| 854 |
if (leftEnd.bottom < rightStart.top) |
| 855 |
add(pl, leftEnd.bottom, null, rightStart.top); |
| 856 |
} |
| 857 |
|
| 858 |
removeChildrenAndAdd(display.selectionDiv, fragment); |
| 859 |
display.selectionDiv.style.display = ""; |
| 860 |
} |
| 861 |
|
| 862 |
// Cursor-blinking |
| 863 |
function restartBlink(cm) { |
| 864 |
if (!cm.state.focused) return; |
| 865 |
var display = cm.display; |
| 866 |
clearInterval(display.blinker); |
| 867 |
var on = true; |
| 868 |
display.cursor.style.visibility = display.otherCursor.style.visibility = ""; |
| 869 |
display.blinker = setInterval(function() { |
| 870 |
display.cursor.style.visibility = display.otherCursor.style.visibility = (on = !on) ? "" : "hidden"; |
| 871 |
}, cm.options.cursorBlinkRate); |
| 872 |
} |
| 873 |
|
| 874 |
// HIGHLIGHT WORKER |
| 875 |
|
| 876 |
function startWorker(cm, time) { |
| 877 |
if (cm.doc.mode.startState && cm.doc.frontier < cm.display.showingTo) |
| 878 |
cm.state.highlight.set(time, bind(highlightWorker, cm)); |
| 879 |
} |
| 880 |
|
| 881 |
function highlightWorker(cm) { |
| 882 |
var doc = cm.doc; |
| 883 |
if (doc.frontier < doc.first) doc.frontier = doc.first; |
| 884 |
if (doc.frontier >= cm.display.showingTo) return; |
| 885 |
var end = +new Date + cm.options.workTime; |
| 886 |
var state = copyState(doc.mode, getStateBefore(cm, doc.frontier)); |
| 887 |
var changed = [], prevChange; |
| 888 |
doc.iter(doc.frontier, Math.min(doc.first + doc.size, cm.display.showingTo + 500), function(line) { |
| 889 |
if (doc.frontier >= cm.display.showingFrom) { // Visible |
| 890 |
var oldStyles = line.styles; |
| 891 |
line.styles = highlightLine(cm, line, state); |
| 892 |
var ischange = !oldStyles || oldStyles.length != line.styles.length; |
| 893 |
for (var i = 0; !ischange && i < oldStyles.length; ++i) ischange = oldStyles[i] != line.styles[i]; |
| 894 |
if (ischange) { |
| 895 |
if (prevChange && prevChange.end == doc.frontier) prevChange.end++; |
| 896 |
else changed.push(prevChange = {start: doc.frontier, end: doc.frontier + 1}); |
| 897 |
} |
| 898 |
line.stateAfter = copyState(doc.mode, state); |
| 899 |
} else { |
| 900 |
processLine(cm, line, state); |
| 901 |
line.stateAfter = doc.frontier % 5 == 0 ? copyState(doc.mode, state) : null; |
| 902 |
} |
| 903 |
++doc.frontier; |
| 904 |
if (+new Date > end) { |
| 905 |
startWorker(cm, cm.options.workDelay); |
| 906 |
return true; |
| 907 |
} |
| 908 |
}); |
| 909 |
if (changed.length) |
| 910 |
operation(cm, function() { |
| 911 |
for (var i = 0; i < changed.length; ++i) |
| 912 |
regChange(this, changed[i].start, changed[i].end); |
| 913 |
})(); |
| 914 |
} |
| 915 |
|
| 916 |
// Finds the line to start with when starting a parse. Tries to |
| 917 |
// find a line with a stateAfter, so that it can start with a |
| 918 |
// valid state. If that fails, it returns the line with the |
| 919 |
// smallest indentation, which tends to need the least context to |
| 920 |
// parse correctly. |
| 921 |
function findStartLine(cm, n, precise) { |
| 922 |
var minindent, minline, doc = cm.doc; |
| 923 |
for (var search = n, lim = n - 100; search > lim; --search) { |
| 924 |
if (search <= doc.first) return doc.first; |
| 925 |
var line = getLine(doc, search - 1); |
| 926 |
if (line.stateAfter && (!precise || search <= doc.frontier)) return search; |
| 927 |
var indented = countColumn(line.text, null, cm.options.tabSize); |
| 928 |
if (minline == null || minindent > indented) { |
| 929 |
minline = search - 1; |
| 930 |
minindent = indented; |
| 931 |
} |
| 932 |
} |
| 933 |
return minline; |
| 934 |
} |
| 935 |
|
| 936 |
function getStateBefore(cm, n, precise) { |
| 937 |
var doc = cm.doc, display = cm.display; |
| 938 |
if (!doc.mode.startState) return true; |
| 939 |
var pos = findStartLine(cm, n, precise), state = pos > doc.first && getLine(doc, pos-1).stateAfter; |
| 940 |
if (!state) state = startState(doc.mode); |
| 941 |
else state = copyState(doc.mode, state); |
| 942 |
doc.iter(pos, n, function(line) { |
| 943 |
processLine(cm, line, state); |
| 944 |
var save = pos == n - 1 || pos % 5 == 0 || pos >= display.showingFrom && pos < display.showingTo; |
| 945 |
line.stateAfter = save ? copyState(doc.mode, state) : null; |
| 946 |
++pos; |
| 947 |
}); |
| 948 |
return state; |
| 949 |
} |
| 950 |
|
| 951 |
// POSITION MEASUREMENT |
| 952 |
|
| 953 |
function paddingTop(display) {return display.lineSpace.offsetTop;} |
| 954 |
function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight;} |
| 955 |
function paddingLeft(display) { |
| 956 |
var e = removeChildrenAndAdd(display.measure, elt("pre", null, null, "text-align: left")).appendChild(elt("span", "x")); |
| 957 |
return e.offsetLeft; |
| 958 |
} |
| 959 |
|
| 960 |
function measureChar(cm, line, ch, data, bias) { |
| 961 |
var dir = -1; |
| 962 |
data = data || measureLine(cm, line); |
| 963 |
|
| 964 |
for (var pos = ch;; pos += dir) { |
| 965 |
var r = data[pos]; |
| 966 |
if (r) break; |
| 967 |
if (dir < 0 && pos == 0) dir = 1; |
| 968 |
} |
| 969 |
var rightV = (pos < ch || bias == "right") && r.topRight != null; |
| 970 |
return {left: pos < ch ? r.right : r.left, |
| 971 |
right: pos > ch ? r.left : r.right, |
| 972 |
top: rightV ? r.topRight : r.top, |
| 973 |
bottom: rightV ? r.bottomRight : r.bottom}; |
| 974 |
} |
| 975 |
|
| 976 |
function findCachedMeasurement(cm, line) { |
| 977 |
var cache = cm.display.measureLineCache; |
| 978 |
for (var i = 0; i < cache.length; ++i) { |
| 979 |
var memo = cache[i]; |
| 980 |
if (memo.text == line.text && memo.markedSpans == line.markedSpans && |
| 981 |
cm.display.scroller.clientWidth == memo.width && |
| 982 |
memo.classes == line.textClass + "|" + line.bgClass + "|" + line.wrapClass) |
| 983 |
return memo; |
| 984 |
} |
| 985 |
} |
| 986 |
|
| 987 |
function clearCachedMeasurement(cm, line) { |
| 988 |
var exists = findCachedMeasurement(cm, line); |
| 989 |
if (exists) exists.text = exists.measure = exists.markedSpans = null; |
| 990 |
} |
| 991 |
|
| 992 |
function measureLine(cm, line) { |
| 993 |
// First look in the cache |
| 994 |
var cached = findCachedMeasurement(cm, line); |
| 995 |
if (cached) return cached.measure; |
| 996 |
|
| 997 |
// Failing that, recompute and store result in cache |
| 998 |
var measure = measureLineInner(cm, line); |
| 999 |
var cache = cm.display.measureLineCache; |
| 1000 |
var memo = {text: line.text, width: cm.display.scroller.clientWidth, |
| 1001 |
markedSpans: line.markedSpans, measure: measure, |
| 1002 |
classes: line.textClass + "|" + line.bgClass + "|" + line.wrapClass}; |
| 1003 |
if (cache.length == 16) cache[++cm.display.measureLineCachePos % 16] = memo; |
| 1004 |
else cache.push(memo); |
| 1005 |
return measure; |
| 1006 |
} |
| 1007 |
|
| 1008 |
function measureLineInner(cm, line) { |
| 1009 |
var display = cm.display, measure = emptyArray(line.text.length); |
| 1010 |
var pre = lineContent(cm, line, measure); |
| 1011 |
|
| 1012 |
// IE does not cache element positions of inline elements between |
| 1013 |
// calls to getBoundingClientRect. This makes the loop below, |
| 1014 |
// which gathers the positions of all the characters on the line, |
| 1015 |
// do an amount of layout work quadratic to the number of |
| 1016 |
// characters. When line wrapping is off, we try to improve things |
| 1017 |
// by first subdividing the line into a bunch of inline blocks, so |
| 1018 |
// that IE can reuse most of the layout information from caches |
| 1019 |
// for those blocks. This does interfere with line wrapping, so it |
| 1020 |
// doesn't work when wrapping is on, but in that case the |
| 1021 |
// situation is slightly better, since IE does cache line-wrapping |
| 1022 |
// information and only recomputes per-line. |
| 1023 |
if (ie && !ie_lt8 && !cm.options.lineWrapping && pre.childNodes.length > 100) { |
| 1024 |
var fragment = document.createDocumentFragment(); |
| 1025 |
var chunk = 10, n = pre.childNodes.length; |
| 1026 |
for (var i = 0, chunks = Math.ceil(n / chunk); i < chunks; ++i) { |
| 1027 |
var wrap = elt("div", null, null, "display: inline-block"); |
| 1028 |
for (var j = 0; j < chunk && n; ++j) { |
| 1029 |
wrap.appendChild(pre.firstChild); |
| 1030 |
--n; |
| 1031 |
} |
| 1032 |
fragment.appendChild(wrap); |
| 1033 |
} |
| 1034 |
pre.appendChild(fragment); |
| 1035 |
} |
| 1036 |
|
| 1037 |
removeChildrenAndAdd(display.measure, pre); |
| 1038 |
|
| 1039 |
var outer = getRect(display.lineDiv); |
| 1040 |
var vranges = [], data = emptyArray(line.text.length), maxBot = pre.offsetHeight; |
| 1041 |
// Work around an IE7/8 bug where it will sometimes have randomly |
| 1042 |
// replaced our pre with a clone at this point. |
| 1043 |
if (ie_lt9 && display.measure.first != pre) |
| 1044 |
removeChildrenAndAdd(display.measure, pre); |
| 1045 |
|
| 1046 |
function categorizeVSpan(top, bot) { |
| 1047 |
if (bot > maxBot) bot = maxBot; |
| 1048 |
if (top < 0) top = 0; |
| 1049 |
for (var j = 0; j < vranges.length; j += 2) { |
| 1050 |
var rtop = vranges[j], rbot = vranges[j+1]; |
| 1051 |
if (rtop > bot || rbot < top) continue; |
| 1052 |
if (rtop <= top && rbot >= bot || |
| 1053 |
top <= rtop && bot >= rbot || |
| 1054 |
Math.min(bot, rbot) - Math.max(top, rtop) >= (bot - top) >> 1) { |
| 1055 |
vranges[j] = Math.min(top, rtop); |
| 1056 |
vranges[j+1] = Math.max(bot, rbot); |
| 1057 |
return j; |
| 1058 |
} |
| 1059 |
} |
| 1060 |
vranges.push(top, bot); |
| 1061 |
return j; |
| 1062 |
} |
| 1063 |
|
| 1064 |
for (var i = 0, cur; i < measure.length; ++i) if (cur = measure[i]) { |
| 1065 |
var size, node = cur; |
| 1066 |
// A widget might wrap, needs special care |
| 1067 |
if (/\bCodeMirror-widget\b/.test(cur.className) && cur.getClientRects) { |
| 1068 |
if (cur.firstChild.nodeType == 1) node = cur.firstChild; |
| 1069 |
var rects = node.getClientRects(), rLeft = rects[0], rRight = rects[rects.length - 1]; |
| 1070 |
if (rects.length > 1) { |
| 1071 |
var vCatLeft = categorizeVSpan(rLeft.top - outer.top, rLeft.bottom - outer.top); |
| 1072 |
var vCatRight = categorizeVSpan(rRight.top - outer.top, rRight.bottom - outer.top); |
| 1073 |
data[i] = {left: rLeft.left - outer.left, right: rRight.right - outer.left, |
| 1074 |
top: vCatLeft, topRight: vCatRight}; |
| 1075 |
continue; |
| 1076 |
} |
| 1077 |
} |
| 1078 |
size = getRect(node); |
| 1079 |
var vCat = categorizeVSpan(size.top - outer.top, size.bottom - outer.top); |
| 1080 |
var right = size.right; |
| 1081 |
if (cur.measureRight) right = getRect(cur.measureRight).left; |
| 1082 |
data[i] = {left: size.left - outer.left, right: right - outer.left, top: vCat}; |
| 1083 |
} |
| 1084 |
for (var i = 0, cur; i < data.length; ++i) if (cur = data[i]) { |
| 1085 |
var vr = cur.top, vrRight = cur.topRight; |
| 1086 |
cur.top = vranges[vr]; cur.bottom = vranges[vr+1]; |
| 1087 |
if (vrRight != null) { cur.topRight = vranges[vrRight]; cur.bottomRight = vranges[vrRight+1]; } |
| 1088 |
} |
| 1089 |
return data; |
| 1090 |
} |
| 1091 |
|
| 1092 |
function measureLineWidth(cm, line) { |
| 1093 |
var hasBadSpan = false; |
| 1094 |
if (line.markedSpans) for (var i = 0; i < line.markedSpans; ++i) { |
| 1095 |
var sp = line.markedSpans[i]; |
| 1096 |
if (sp.collapsed && (sp.to == null || sp.to == line.text.length)) hasBadSpan = true; |
| 1097 |
} |
| 1098 |
var cached = !hasBadSpan && findCachedMeasurement(cm, line); |
| 1099 |
if (cached) return measureChar(cm, line, line.text.length, cached.measure, "right").right; |
| 1100 |
|
| 1101 |
var pre = lineContent(cm, line); |
| 1102 |
var end = pre.appendChild(zeroWidthElement(cm.display.measure)); |
| 1103 |
removeChildrenAndAdd(cm.display.measure, pre); |
| 1104 |
return getRect(end).right - getRect(cm.display.lineDiv).left; |
| 1105 |
} |
| 1106 |
|
| 1107 |
function clearCaches(cm) { |
| 1108 |
cm.display.measureLineCache.length = cm.display.measureLineCachePos = 0; |
| 1109 |
cm.display.cachedCharWidth = cm.display.cachedTextHeight = null; |
| 1110 |
if (!cm.options.lineWrapping) cm.display.maxLineChanged = true; |
| 1111 |
cm.display.lineNumChars = null; |
| 1112 |
} |
| 1113 |
|
| 1114 |
function pageScrollX() { return window.pageXOffset || (document.documentElement || document.body).scrollLeft; } |
| 1115 |
function pageScrollY() { return window.pageYOffset || (document.documentElement || document.body).scrollTop; } |
| 1116 |
|
| 1117 |
// Context is one of "line", "div" (display.lineDiv), "local"/null (editor), or "page" |
| 1118 |
function intoCoordSystem(cm, lineObj, rect, context) { |
| 1119 |
if (lineObj.widgets) for (var i = 0; i < lineObj.widgets.length; ++i) if (lineObj.widgets[i].above) { |
| 1120 |
var size = widgetHeight(lineObj.widgets[i]); |
| 1121 |
rect.top += size; rect.bottom += size; |
| 1122 |
} |
| 1123 |
if (context == "line") return rect; |
| 1124 |
if (!context) context = "local"; |
| 1125 |
var yOff = heightAtLine(cm, lineObj); |
| 1126 |
if (context == "local") yOff += paddingTop(cm.display); |
| 1127 |
else yOff -= cm.display.viewOffset; |
| 1128 |
if (context == "page" || context == "window") { |
| 1129 |
var lOff = getRect(cm.display.lineSpace); |
| 1130 |
yOff += lOff.top + (context == "window" ? 0 : pageScrollY()); |
| 1131 |
var xOff = lOff.left + (context == "window" ? 0 : pageScrollX()); |
| 1132 |
rect.left += xOff; rect.right += xOff; |
| 1133 |
} |
| 1134 |
rect.top += yOff; rect.bottom += yOff; |
| 1135 |
return rect; |
| 1136 |
} |
| 1137 |
|
| 1138 |
// Context may be "window", "page", "div", or "local"/null |
| 1139 |
// Result is in "div" coords |
| 1140 |
function fromCoordSystem(cm, coords, context) { |
| 1141 |
if (context == "div") return coords; |
| 1142 |
var left = coords.left, top = coords.top; |
| 1143 |
// First move into "page" coordinate system |
| 1144 |
if (context == "page") { |
| 1145 |
left -= pageScrollX(); |
| 1146 |
top -= pageScrollY(); |
| 1147 |
} else if (context == "local" || !context) { |
| 1148 |
var localBox = getRect(cm.display.sizer); |
| 1149 |
left += localBox.left; |
| 1150 |
top += localBox.top; |
| 1151 |
} |
| 1152 |
|
| 1153 |
var lineSpaceBox = getRect(cm.display.lineSpace); |
| 1154 |
return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top}; |
| 1155 |
} |
| 1156 |
|
| 1157 |
function charCoords(cm, pos, context, lineObj, bias) { |
| 1158 |
if (!lineObj) lineObj = getLine(cm.doc, pos.line); |
| 1159 |
return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, null, bias), context); |
| 1160 |
} |
| 1161 |
|
| 1162 |
function cursorCoords(cm, pos, context, lineObj, measurement) { |
| 1163 |
lineObj = lineObj || getLine(cm.doc, pos.line); |
| 1164 |
if (!measurement) measurement = measureLine(cm, lineObj); |
| 1165 |
function get(ch, right) { |
| 1166 |
var m = measureChar(cm, lineObj, ch, measurement, right ? "right" : "left"); |
| 1167 |
if (right) m.left = m.right; else m.right = m.left; |
| 1168 |
return intoCoordSystem(cm, lineObj, m, context); |
| 1169 |
} |
| 1170 |
function getBidi(ch, partPos) { |
| 1171 |
var part = order[partPos], right = part.level % 2; |
| 1172 |
if (ch == bidiLeft(part) && partPos && part.level < order[partPos - 1].level) { |
| 1173 |
part = order[--partPos]; |
| 1174 |
ch = bidiRight(part) - (part.level % 2 ? 0 : 1); |
| 1175 |
right = true; |
| 1176 |
} else if (ch == bidiRight(part) && partPos < order.length - 1 && part.level < order[partPos + 1].level) { |
| 1177 |
part = order[++partPos]; |
| 1178 |
ch = bidiLeft(part) - part.level % 2; |
| 1179 |
right = false; |
| 1180 |
} |
| 1181 |
if (right && ch == part.to && ch > part.from) return get(ch - 1); |
| 1182 |
return get(ch, right); |
| 1183 |
} |
| 1184 |
var order = getOrder(lineObj), ch = pos.ch; |
| 1185 |
if (!order) return get(ch); |
| 1186 |
var partPos = getBidiPartAt(order, ch); |
| 1187 |
var val = getBidi(ch, partPos); |
| 1188 |
if (bidiOther != null) val.other = getBidi(ch, bidiOther); |
| 1189 |
return val; |
| 1190 |
} |
| 1191 |
|
| 1192 |
function PosWithInfo(line, ch, outside, xRel) { |
| 1193 |
var pos = new Pos(line, ch); |
| 1194 |
pos.xRel = xRel; |
| 1195 |
if (outside) pos.outside = true; |
| 1196 |
return pos; |
| 1197 |
} |
| 1198 |
|
| 1199 |
// Coords must be lineSpace-local |
| 1200 |
function coordsChar(cm, x, y) { |
| 1201 |
var doc = cm.doc; |
| 1202 |
y += cm.display.viewOffset; |
| 1203 |
if (y < 0) return PosWithInfo(doc.first, 0, true, -1); |
| 1204 |
var lineNo = lineAtHeight(doc, y), last = doc.first + doc.size - 1; |
| 1205 |
if (lineNo > last) |
| 1206 |
return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, true, 1); |
| 1207 |
if (x < 0) x = 0; |
| 1208 |
|
| 1209 |
for (;;) { |
| 1210 |
var lineObj = getLine(doc, lineNo); |
| 1211 |
var found = coordsCharInner(cm, lineObj, lineNo, x, y); |
| 1212 |
var merged = collapsedSpanAtEnd(lineObj); |
| 1213 |
var mergedPos = merged && merged.find(); |
| 1214 |
if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0)) |
| 1215 |
lineNo = mergedPos.to.line; |
| 1216 |
else |
| 1217 |
return found; |
| 1218 |
} |
| 1219 |
} |
| 1220 |
|
| 1221 |
function coordsCharInner(cm, lineObj, lineNo, x, y) { |
| 1222 |
var innerOff = y - heightAtLine(cm, lineObj); |
| 1223 |
var wrongLine = false, adjust = 2 * cm.display.wrapper.clientWidth; |
| 1224 |
var measurement = measureLine(cm, lineObj); |
| 1225 |
|
| 1226 |
function getX(ch) { |
| 1227 |
var sp = cursorCoords(cm, Pos(lineNo, ch), "line", |
| 1228 |
lineObj, measurement); |
| 1229 |
wrongLine = true; |
| 1230 |
if (innerOff > sp.bottom) return sp.left - adjust; |
| 1231 |
else if (innerOff < sp.top) return sp.left + adjust; |
| 1232 |
else wrongLine = false; |
| 1233 |
return sp.left; |
| 1234 |
} |
| 1235 |
|
| 1236 |
var bidi = getOrder(lineObj), dist = lineObj.text.length; |
| 1237 |
var from = lineLeft(lineObj), to = lineRight(lineObj); |
| 1238 |
var fromX = getX(from), fromOutside = wrongLine, toX = getX(to), toOutside = wrongLine; |
| 1239 |
|
| 1240 |
if (x > toX) return PosWithInfo(lineNo, to, toOutside, 1); |
| 1241 |
// Do a binary search between these bounds. |
| 1242 |
for (;;) { |
| 1243 |
if (bidi ? to == from || to == moveVisually(lineObj, from, 1) : to - from <= 1) { |
| 1244 |
var ch = x < fromX || x - fromX <= toX - x ? from : to; |
| 1245 |
var xDiff = x - (ch == from ? fromX : toX); |
| 1246 |
while (isExtendingChar.test(lineObj.text.charAt(ch))) ++ch; |
| 1247 |
var pos = PosWithInfo(lineNo, ch, ch == from ? fromOutside : toOutside, |
| 1248 |
xDiff < 0 ? -1 : xDiff ? 1 : 0); |
| 1249 |
return pos; |
| 1250 |
} |
| 1251 |
var step = Math.ceil(dist / 2), middle = from + step; |
| 1252 |
if (bidi) { |
| 1253 |
middle = from; |
| 1254 |
for (var i = 0; i < step; ++i) middle = moveVisually(lineObj, middle, 1); |
| 1255 |
} |
| 1256 |
var middleX = getX(middle); |
| 1257 |
if (middleX > x) {to = middle; toX = middleX; if (toOutside = wrongLine) toX += 1000; dist = step;} |
| 1258 |
else {from = middle; fromX = middleX; fromOutside = wrongLine; dist -= step;} |
| 1259 |
} |
| 1260 |
} |
| 1261 |
|
| 1262 |
var measureText; |
| 1263 |
function textHeight(display) { |
| 1264 |
if (display.cachedTextHeight != null) return display.cachedTextHeight; |
| 1265 |
if (measureText == null) { |
| 1266 |
measureText = elt("pre"); |
| 1267 |
// Measure a bunch of lines, for browsers that compute |
| 1268 |
// fractional heights. |
| 1269 |
for (var i = 0; i < 49; ++i) { |
| 1270 |
measureText.appendChild(document.createTextNode("x")); |
| 1271 |
measureText.appendChild(elt("br")); |
| 1272 |
} |
| 1273 |
measureText.appendChild(document.createTextNode("x")); |
| 1274 |
} |
| 1275 |
removeChildrenAndAdd(display.measure, measureText); |
| 1276 |
var height = measureText.offsetHeight / 50; |
| 1277 |
if (height > 3) display.cachedTextHeight = height; |
| 1278 |
removeChildren(display.measure); |
| 1279 |
return height || 1; |
| 1280 |
} |
| 1281 |
|
| 1282 |
function charWidth(display) { |
| 1283 |
if (display.cachedCharWidth != null) return display.cachedCharWidth; |
| 1284 |
var anchor = elt("span", "x"); |
| 1285 |
var pre = elt("pre", [anchor]); |
| 1286 |
removeChildrenAndAdd(display.measure, pre); |
| 1287 |
var width = anchor.offsetWidth; |
| 1288 |
if (width > 2) display.cachedCharWidth = width; |
| 1289 |
return width || 10; |
| 1290 |
} |
| 1291 |
|
| 1292 |
// OPERATIONS |
| 1293 |
|
| 1294 |
// Operations are used to wrap changes in such a way that each |
| 1295 |
// change won't have to update the cursor and display (which would |
| 1296 |
// be awkward, slow, and error-prone), but instead updates are |
| 1297 |
// batched and then all combined and executed at once. |
| 1298 |
|
| 1299 |
var nextOpId = 0; |
| 1300 |
function startOperation(cm) { |
| 1301 |
cm.curOp = { |
| 1302 |
// An array of ranges of lines that have to be updated. See |
| 1303 |
// updateDisplay. |
| 1304 |
changes: [], |
| 1305 |
updateInput: null, |
| 1306 |
userSelChange: null, |
| 1307 |
textChanged: null, |
| 1308 |
selectionChanged: false, |
| 1309 |
cursorActivity: false, |
| 1310 |
updateMaxLine: false, |
| 1311 |
updateScrollPos: false, |
| 1312 |
id: ++nextOpId |
| 1313 |
}; |
| 1314 |
if (!delayedCallbackDepth++) delayedCallbacks = []; |
| 1315 |
} |
| 1316 |
|
| 1317 |
function endOperation(cm) { |
| 1318 |
var op = cm.curOp, doc = cm.doc, display = cm.display; |
| 1319 |
cm.curOp = null; |
| 1320 |
|
| 1321 |
if (op.updateMaxLine) computeMaxLength(cm); |
| 1322 |
if (display.maxLineChanged && !cm.options.lineWrapping && display.maxLine) { |
| 1323 |
var width = measureLineWidth(cm, display.maxLine); |
| 1324 |
display.sizer.style.minWidth = Math.max(0, width + 3 + scrollerCutOff) + "px"; |
| 1325 |
display.maxLineChanged = false; |
| 1326 |
var maxScrollLeft = Math.max(0, display.sizer.offsetLeft + display.sizer.offsetWidth - display.scroller.clientWidth); |
| 1327 |
if (maxScrollLeft < doc.scrollLeft && !op.updateScrollPos) |
| 1328 |
setScrollLeft(cm, Math.min(display.scroller.scrollLeft, maxScrollLeft), true); |
| 1329 |
} |
| 1330 |
var newScrollPos, updated; |
| 1331 |
if (op.updateScrollPos) { |
| 1332 |
newScrollPos = op.updateScrollPos; |
| 1333 |
} else if (op.selectionChanged && display.scroller.clientHeight) { // don't rescroll if not visible |
| 1334 |
var coords = cursorCoords(cm, doc.sel.head); |
| 1335 |
newScrollPos = calculateScrollPos(cm, coords.left, coords.top, coords.left, coords.bottom); |
| 1336 |
} |
| 1337 |
if (op.changes.length || newScrollPos && newScrollPos.scrollTop != null) { |
| 1338 |
updated = updateDisplay(cm, op.changes, newScrollPos && newScrollPos.scrollTop); |
| 1339 |
if (cm.display.scroller.offsetHeight) cm.doc.scrollTop = cm.display.scroller.scrollTop; |
| 1340 |
} |
| 1341 |
if (!updated && op.selectionChanged) updateSelection(cm); |
| 1342 |
if (op.updateScrollPos) { |
| 1343 |
display.scroller.scrollTop = display.scrollbarV.scrollTop = doc.scrollTop = newScrollPos.scrollTop; |
| 1344 |
display.scroller.scrollLeft = display.scrollbarH.scrollLeft = doc.scrollLeft = newScrollPos.scrollLeft; |
| 1345 |
alignHorizontally(cm); |
| 1346 |
if (op.scrollToPos) |
| 1347 |
scrollPosIntoView(cm, clipPos(cm.doc, op.scrollToPos), op.scrollToPosMargin); |
| 1348 |
} else if (newScrollPos) { |
| 1349 |
scrollCursorIntoView(cm); |
| 1350 |
} |
| 1351 |
if (op.selectionChanged) restartBlink(cm); |
| 1352 |
|
| 1353 |
if (cm.state.focused && op.updateInput) |
| 1354 |
resetInput(cm, op.userSelChange); |
| 1355 |
|
| 1356 |
var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers; |
| 1357 |
if (hidden) for (var i = 0; i < hidden.length; ++i) |
| 1358 |
if (!hidden[i].lines.length) signal(hidden[i], "hide"); |
| 1359 |
if (unhidden) for (var i = 0; i < unhidden.length; ++i) |
| 1360 |
if (unhidden[i].lines.length) signal(unhidden[i], "unhide"); |
| 1361 |
|
| 1362 |
var delayed; |
| 1363 |
if (!--delayedCallbackDepth) { |
| 1364 |
delayed = delayedCallbacks; |
| 1365 |
delayedCallbacks = null; |
| 1366 |
} |
| 1367 |
if (op.textChanged) |
| 1368 |
signal(cm, "change", cm, op.textChanged); |
| 1369 |
if (op.cursorActivity) signal(cm, "cursorActivity", cm); |
| 1370 |
if (delayed) for (var i = 0; i < delayed.length; ++i) delayed[i](); |
| 1371 |
} |
| 1372 |
|
| 1373 |
// Wraps a function in an operation. Returns the wrapped function. |
| 1374 |
function operation(cm1, f) { |
| 1375 |
return function() { |
| 1376 |
var cm = cm1 || this, withOp = !cm.curOp; |
| 1377 |
if (withOp) startOperation(cm); |
| 1378 |
try { var result = f.apply(cm, arguments); } |
| 1379 |
finally { if (withOp) endOperation(cm); } |
| 1380 |
return result; |
| 1381 |
}; |
| 1382 |
} |
| 1383 |
function docOperation(f) { |
| 1384 |
return function() { |
| 1385 |
var withOp = this.cm && !this.cm.curOp, result; |
| 1386 |
if (withOp) startOperation(this.cm); |
| 1387 |
try { result = f.apply(this, arguments); } |
| 1388 |
finally { if (withOp) endOperation(this.cm); } |
| 1389 |
return result; |
| 1390 |
}; |
| 1391 |
} |
| 1392 |
function runInOp(cm, f) { |
| 1393 |
var withOp = !cm.curOp, result; |
| 1394 |
if (withOp) startOperation(cm); |
| 1395 |
try { result = f(); } |
| 1396 |
finally { if (withOp) endOperation(cm); } |
| 1397 |
return result; |
| 1398 |
} |
| 1399 |
|
| 1400 |
function regChange(cm, from, to, lendiff) { |
| 1401 |
if (from == null) from = cm.doc.first; |
| 1402 |
if (to == null) to = cm.doc.first + cm.doc.size; |
| 1403 |
cm.curOp.changes.push({from: from, to: to, diff: lendiff}); |
| 1404 |
} |
| 1405 |
|
| 1406 |
// INPUT HANDLING |
| 1407 |
|
| 1408 |
function slowPoll(cm) { |
| 1409 |
if (cm.display.pollingFast) return; |
| 1410 |
cm.display.poll.set(cm.options.pollInterval, function() { |
| 1411 |
readInput(cm); |
| 1412 |
if (cm.state.focused) slowPoll(cm); |
| 1413 |
}); |
| 1414 |
} |
| 1415 |
|
| 1416 |
function fastPoll(cm) { |
| 1417 |
var missed = false; |
| 1418 |
cm.display.pollingFast = true; |
| 1419 |
function p() { |
| 1420 |
var changed = readInput(cm); |
| 1421 |
if (!changed && !missed) {missed = true; cm.display.poll.set(60, p);} |
| 1422 |
else {cm.display.pollingFast = false; slowPoll(cm);} |
| 1423 |
} |
| 1424 |
cm.display.poll.set(20, p); |
| 1425 |
} |
| 1426 |
|
| 1427 |
// prevInput is a hack to work with IME. If we reset the textarea |
| 1428 |
// on every change, that breaks IME. So we look for changes |
| 1429 |
// compared to the previous content instead. (Modern browsers have |
| 1430 |
// events that indicate IME taking place, but these are not widely |
| 1431 |
// supported or compatible enough yet to rely on.) |
| 1432 |
function readInput(cm) { |
| 1433 |
var input = cm.display.input, prevInput = cm.display.prevInput, doc = cm.doc, sel = doc.sel; |
| 1434 |
if (!cm.state.focused || hasSelection(input) || isReadOnly(cm) || cm.state.disableInput) return false; |
| 1435 |
var text = input.value; |
| 1436 |
if (text == prevInput && posEq(sel.from, sel.to)) return false; |
| 1437 |
if (ie && !ie_lt9 && cm.display.inputHasSelection === text) { |
| 1438 |
resetInput(cm, true); |
| 1439 |
return false; |
| 1440 |
} |
| 1441 |
|
| 1442 |
var withOp = !cm.curOp; |
| 1443 |
if (withOp) startOperation(cm); |
| 1444 |
sel.shift = false; |
| 1445 |
var same = 0, l = Math.min(prevInput.length, text.length); |
| 1446 |
while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) ++same; |
| 1447 |
var from = sel.from, to = sel.to; |
| 1448 |
if (same < prevInput.length) |
| 1449 |
from = Pos(from.line, from.ch - (prevInput.length - same)); |
| 1450 |
else if (cm.state.overwrite && posEq(from, to) && !cm.state.pasteIncoming) |
| 1451 |
to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + (text.length - same))); |
| 1452 |
|
| 1453 |
var updateInput = cm.curOp.updateInput; |
| 1454 |
var changeEvent = {from: from, to: to, text: splitLines(text.slice(same)), |
| 1455 |
origin: cm.state.pasteIncoming ? "paste" : "+input"}; |
| 1456 |
makeChange(cm.doc, changeEvent, "end"); |
| 1457 |
cm.curOp.updateInput = updateInput; |
| 1458 |
signalLater(cm, "inputRead", cm, changeEvent); |
| 1459 |
|
| 1460 |
if (text.length > 1000 || text.indexOf("\n") > -1) input.value = cm.display.prevInput = ""; |
| 1461 |
else cm.display.prevInput = text; |
| 1462 |
if (withOp) endOperation(cm); |
| 1463 |
cm.state.pasteIncoming = false; |
| 1464 |
return true; |
| 1465 |
} |
| 1466 |
|
| 1467 |
function resetInput(cm, user) { |
| 1468 |
var minimal, selected, doc = cm.doc; |
| 1469 |
if (!posEq(doc.sel.from, doc.sel.to)) { |
| 1470 |
cm.display.prevInput = ""; |
| 1471 |
minimal = hasCopyEvent && |
| 1472 |
(doc.sel.to.line - doc.sel.from.line > 100 || (selected = cm.getSelection()).length > 1000); |
| 1473 |
var content = minimal ? "-" : selected || cm.getSelection(); |
| 1474 |
cm.display.input.value = content; |
| 1475 |
if (cm.state.focused) selectInput(cm.display.input); |
| 1476 |
if (ie && !ie_lt9) cm.display.inputHasSelection = content; |
| 1477 |
} else if (user) { |
| 1478 |
cm.display.prevInput = cm.display.input.value = ""; |
| 1479 |
if (ie && !ie_lt9) cm.display.inputHasSelection = null; |
| 1480 |
} |
| 1481 |
cm.display.inaccurateSelection = minimal; |
| 1482 |
} |
| 1483 |
|
| 1484 |
function focusInput(cm) { |
| 1485 |
if (cm.options.readOnly != "nocursor" && (!mobile || document.activeElement != cm.display.input)) |
| 1486 |
cm.display.input.focus(); |
| 1487 |
} |
| 1488 |
|
| 1489 |
function isReadOnly(cm) { |
| 1490 |
return cm.options.readOnly || cm.doc.cantEdit; |
| 1491 |
} |
| 1492 |
|
| 1493 |
// EVENT HANDLERS |
| 1494 |
|
| 1495 |
function registerEventHandlers(cm) { |
| 1496 |
var d = cm.display; |
| 1497 |
on(d.scroller, "mousedown", operation(cm, onMouseDown)); |
| 1498 |
if (ie) |
| 1499 |
on(d.scroller, "dblclick", operation(cm, function(e) { |
| 1500 |
if (signalDOMEvent(cm, e)) return; |
| 1501 |
var pos = posFromMouse(cm, e); |
| 1502 |
if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) return; |
| 1503 |
e_preventDefault(e); |
| 1504 |
var word = findWordAt(getLine(cm.doc, pos.line).text, pos); |
| 1505 |
extendSelection(cm.doc, word.from, word.to); |
| 1506 |
})); |
| 1507 |
else |
| 1508 |
on(d.scroller, "dblclick", function(e) { signalDOMEvent(cm, e) || e_preventDefault(e); }); |
| 1509 |
on(d.lineSpace, "selectstart", function(e) { |
| 1510 |
if (!eventInWidget(d, e)) e_preventDefault(e); |
| 1511 |
}); |
| 1512 |
// Gecko browsers fire contextmenu *after* opening the menu, at |
| 1513 |
// which point we can't mess with it anymore. Context menu is |
| 1514 |
// handled in onMouseDown for Gecko. |
| 1515 |
if (!captureMiddleClick) on(d.scroller, "contextmenu", function(e) {onContextMenu(cm, e);}); |
| 1516 |
|
| 1517 |
on(d.scroller, "scroll", function() { |
| 1518 |
if (d.scroller.clientHeight) { |
| 1519 |
setScrollTop(cm, d.scroller.scrollTop); |
| 1520 |
setScrollLeft(cm, d.scroller.scrollLeft, true); |
| 1521 |
signal(cm, "scroll", cm); |
| 1522 |
} |
| 1523 |
}); |
| 1524 |
on(d.scrollbarV, "scroll", function() { |
| 1525 |
if (d.scroller.clientHeight) setScrollTop(cm, d.scrollbarV.scrollTop); |
| 1526 |
}); |
| 1527 |
on(d.scrollbarH, "scroll", function() { |
| 1528 |
if (d.scroller.clientHeight) setScrollLeft(cm, d.scrollbarH.scrollLeft); |
| 1529 |
}); |
| 1530 |
|
| 1531 |
on(d.scroller, "mousewheel", function(e){onScrollWheel(cm, e);}); |
| 1532 |
on(d.scroller, "DOMMouseScroll", function(e){onScrollWheel(cm, e);}); |
| 1533 |
|
| 1534 |
function reFocus() { if (cm.state.focused) setTimeout(bind(focusInput, cm), 0); } |
| 1535 |
on(d.scrollbarH, "mousedown", reFocus); |
| 1536 |
on(d.scrollbarV, "mousedown", reFocus); |
| 1537 |
// Prevent wrapper from ever scrolling |
| 1538 |
on(d.wrapper, "scroll", function() { d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; }); |
| 1539 |
|
| 1540 |
var resizeTimer; |
| 1541 |
function onResize() { |
| 1542 |
if (resizeTimer == null) resizeTimer = setTimeout(function() { |
| 1543 |
resizeTimer = null; |
| 1544 |
// Might be a text scaling operation, clear size caches. |
| 1545 |
d.cachedCharWidth = d.cachedTextHeight = knownScrollbarWidth = null; |
| 1546 |
clearCaches(cm); |
| 1547 |
runInOp(cm, bind(regChange, cm)); |
| 1548 |
}, 100); |
| 1549 |
} |
| 1550 |
on(window, "resize", onResize); |
| 1551 |
// Above handler holds on to the editor and its data structures. |
| 1552 |
// Here we poll to unregister it when the editor is no longer in |
| 1553 |
// the document, so that it can be garbage-collected. |
| 1554 |
function unregister() { |
| 1555 |
for (var p = d.wrapper.parentNode; p && p != document.body; p = p.parentNode) {} |
| 1556 |
if (p) setTimeout(unregister, 5000); |
| 1557 |
else off(window, "resize", onResize); |
| 1558 |
} |
| 1559 |
setTimeout(unregister, 5000); |
| 1560 |
|
| 1561 |
on(d.input, "keyup", operation(cm, function(e) { |
| 1562 |
if (signalDOMEvent(cm, e) || cm.options.onKeyEvent && cm.options.onKeyEvent(cm, addStop(e))) return; |
| 1563 |
if (e.keyCode == 16) cm.doc.sel.shift = false; |
| 1564 |
})); |
| 1565 |
on(d.input, "input", bind(fastPoll, cm)); |
| 1566 |
on(d.input, "keydown", operation(cm, onKeyDown)); |
| 1567 |
on(d.input, "keypress", operation(cm, onKeyPress)); |
| 1568 |
on(d.input, "focus", bind(onFocus, cm)); |
| 1569 |
on(d.input, "blur", bind(onBlur, cm)); |
| 1570 |
|
| 1571 |
function drag_(e) { |
| 1572 |
if (signalDOMEvent(cm, e) || cm.options.onDragEvent && cm.options.onDragEvent(cm, addStop(e))) return; |
| 1573 |
e_stop(e); |
| 1574 |
} |
| 1575 |
if (cm.options.dragDrop) { |
| 1576 |
on(d.scroller, "dragstart", function(e){onDragStart(cm, e);}); |
| 1577 |
on(d.scroller, "dragenter", drag_); |
| 1578 |
on(d.scroller, "dragover", drag_); |
| 1579 |
on(d.scroller, "drop", operation(cm, onDrop)); |
| 1580 |
} |
| 1581 |
on(d.scroller, "paste", function(e){ |
| 1582 |
if (eventInWidget(d, e)) return; |
| 1583 |
focusInput(cm); |
| 1584 |
fastPoll(cm); |
| 1585 |
}); |
| 1586 |
on(d.input, "paste", function() { |
| 1587 |
cm.state.pasteIncoming = true; |
| 1588 |
fastPoll(cm); |
| 1589 |
}); |
| 1590 |
|
| 1591 |
function prepareCopy() { |
| 1592 |
if (d.inaccurateSelection) { |
| 1593 |
d.prevInput = ""; |
| 1594 |
d.inaccurateSelection = false; |
| 1595 |
d.input.value = cm.getSelection(); |
| 1596 |
selectInput(d.input); |
| 1597 |
} |
| 1598 |
} |
| 1599 |
on(d.input, "cut", prepareCopy); |
| 1600 |
on(d.input, "copy", prepareCopy); |
| 1601 |
|
| 1602 |
// Needed to handle Tab key in KHTML |
| 1603 |
if (khtml) on(d.sizer, "mouseup", function() { |
| 1604 |
if (document.activeElement == d.input) d.input.blur(); |
| 1605 |
focusInput(cm); |
| 1606 |
}); |
| 1607 |
} |
| 1608 |
|
| 1609 |
function eventInWidget(display, e) { |
| 1610 |
for (var n = e_target(e); n != display.wrapper; n = n.parentNode) { |
| 1611 |
if (!n || n.ignoreEvents || n.parentNode == display.sizer && n != display.mover) return true; |
| 1612 |
} |
| 1613 |
} |
| 1614 |
|
| 1615 |
function posFromMouse(cm, e, liberal) { |
| 1616 |
var display = cm.display; |
| 1617 |
if (!liberal) { |
| 1618 |
var target = e_target(e); |
| 1619 |
if (target == display.scrollbarH || target == display.scrollbarH.firstChild || |
| 1620 |
target == display.scrollbarV || target == display.scrollbarV.firstChild || |
| 1621 |
target == display.scrollbarFiller || target == display.gutterFiller) return null; |
| 1622 |
} |
| 1623 |
var x, y, space = getRect(display.lineSpace); |
| 1624 |
// Fails unpredictably on IE[67] when mouse is dragged around quickly. |
| 1625 |
try { x = e.clientX; y = e.clientY; } catch (e) { return null; } |
| 1626 |
return coordsChar(cm, x - space.left, y - space.top); |
| 1627 |
} |
| 1628 |
|
| 1629 |
var lastClick, lastDoubleClick; |
| 1630 |
function onMouseDown(e) { |
| 1631 |
if (signalDOMEvent(this, e)) return; |
| 1632 |
var cm = this, display = cm.display, doc = cm.doc, sel = doc.sel; |
| 1633 |
sel.shift = e.shiftKey; |
| 1634 |
|
| 1635 |
if (eventInWidget(display, e)) { |
| 1636 |
if (!webkit) { |
| 1637 |
display.scroller.draggable = false; |
| 1638 |
setTimeout(function(){display.scroller.draggable = true;}, 100); |
| 1639 |
} |
| 1640 |
return; |
| 1641 |
} |
| 1642 |
if (clickInGutter(cm, e)) return; |
| 1643 |
var start = posFromMouse(cm, e); |
| 1644 |
|
| 1645 |
switch (e_button(e)) { |
| 1646 |
case 3: |
| 1647 |
if (captureMiddleClick) onContextMenu.call(cm, cm, e); |
| 1648 |
return; |
| 1649 |
case 2: |
| 1650 |
if (start) extendSelection(cm.doc, start); |
| 1651 |
setTimeout(bind(focusInput, cm), 20); |
| 1652 |
e_preventDefault(e); |
| 1653 |
return; |
| 1654 |
} |
| 1655 |
// For button 1, if it was clicked inside the editor |
| 1656 |
// (posFromMouse returning non-null), we have to adjust the |
| 1657 |
// selection. |
| 1658 |
if (!start) {if (e_target(e) == display.scroller) e_preventDefault(e); return;} |
| 1659 |
|
| 1660 |
if (!cm.state.focused) onFocus(cm); |
| 1661 |
|
| 1662 |
var now = +new Date, type = "single"; |
| 1663 |
if (lastDoubleClick && lastDoubleClick.time > now - 400 && posEq(lastDoubleClick.pos, start)) { |
| 1664 |
type = "triple"; |
| 1665 |
e_preventDefault(e); |
| 1666 |
setTimeout(bind(focusInput, cm), 20); |
| 1667 |
selectLine(cm, start.line); |
| 1668 |
} else if (lastClick && lastClick.time > now - 400 && posEq(lastClick.pos, start)) { |
| 1669 |
type = "double"; |
| 1670 |
lastDoubleClick = {time: now, pos: start}; |
| 1671 |
e_preventDefault(e); |
| 1672 |
var word = findWordAt(getLine(doc, start.line).text, start); |
| 1673 |
extendSelection(cm.doc, word.from, word.to); |
| 1674 |
} else { lastClick = {time: now, pos: start}; } |
| 1675 |
|
| 1676 |
var last = start; |
| 1677 |
if (cm.options.dragDrop && dragAndDrop && !isReadOnly(cm) && !posEq(sel.from, sel.to) && |
| 1678 |
!posLess(start, sel.from) && !posLess(sel.to, start) && type == "single") { |
| 1679 |
var dragEnd = operation(cm, function(e2) { |
| 1680 |
if (webkit) display.scroller.draggable = false; |
| 1681 |
cm.state.draggingText = false; |
| 1682 |
off(document, "mouseup", dragEnd); |
| 1683 |
off(display.scroller, "drop", dragEnd); |
| 1684 |
if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) { |
| 1685 |
e_preventDefault(e2); |
| 1686 |
extendSelection(cm.doc, start); |
| 1687 |
focusInput(cm); |
| 1688 |
} |
| 1689 |
}); |
| 1690 |
// Let the drag handler handle this. |
| 1691 |
if (webkit) display.scroller.draggable = true; |
| 1692 |
cm.state.draggingText = dragEnd; |
| 1693 |
// IE's approach to draggable |
| 1694 |
if (display.scroller.dragDrop) display.scroller.dragDrop(); |
| 1695 |
on(document, "mouseup", dragEnd); |
| 1696 |
on(display.scroller, "drop", dragEnd); |
| 1697 |
return; |
| 1698 |
} |
| 1699 |
e_preventDefault(e); |
| 1700 |
if (type == "single") extendSelection(cm.doc, clipPos(doc, start)); |
| 1701 |
|
| 1702 |
var startstart = sel.from, startend = sel.to, lastPos = start; |
| 1703 |
|
| 1704 |
function doSelect(cur) { |
| 1705 |
if (posEq(lastPos, cur)) return; |
| 1706 |
lastPos = cur; |
| 1707 |
|
| 1708 |
if (type == "single") { |
| 1709 |
extendSelection(cm.doc, clipPos(doc, start), cur); |
| 1710 |
return; |
| 1711 |
} |
| 1712 |
|
| 1713 |
startstart = clipPos(doc, startstart); |
| 1714 |
startend = clipPos(doc, startend); |
| 1715 |
if (type == "double") { |
| 1716 |
var word = findWordAt(getLine(doc, cur.line).text, cur); |
| 1717 |
if (posLess(cur, startstart)) extendSelection(cm.doc, word.from, startend); |
| 1718 |
else extendSelection(cm.doc, startstart, word.to); |
| 1719 |
} else if (type == "triple") { |
| 1720 |
if (posLess(cur, startstart)) extendSelection(cm.doc, startend, clipPos(doc, Pos(cur.line, 0))); |
| 1721 |
else extendSelection(cm.doc, startstart, clipPos(doc, Pos(cur.line + 1, 0))); |
| 1722 |
} |
| 1723 |
} |
| 1724 |
|
| 1725 |
var editorSize = getRect(display.wrapper); |
| 1726 |
// Used to ensure timeout re-tries don't fire when another extend |
| 1727 |
// happened in the meantime (clearTimeout isn't reliable -- at |
| 1728 |
// least on Chrome, the timeouts still happen even when cleared, |
| 1729 |
// if the clear happens after their scheduled firing time). |
| 1730 |
var counter = 0; |
| 1731 |
|
| 1732 |
function extend(e) { |
| 1733 |
var curCount = ++counter; |
| 1734 |
var cur = posFromMouse(cm, e, true); |
| 1735 |
if (!cur) return; |
| 1736 |
if (!posEq(cur, last)) { |
| 1737 |
if (!cm.state.focused) onFocus(cm); |
| 1738 |
last = cur; |
| 1739 |
doSelect(cur); |
| 1740 |
var visible = visibleLines(display, doc); |
| 1741 |
if (cur.line >= visible.to || cur.line < visible.from) |
| 1742 |
setTimeout(operation(cm, function(){if (counter == curCount) extend(e);}), 150); |
| 1743 |
} else { |
| 1744 |
var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0; |
| 1745 |
if (outside) setTimeout(operation(cm, function() { |
| 1746 |
if (counter != curCount) return; |
| 1747 |
display.scroller.scrollTop += outside; |
| 1748 |
extend(e); |
| 1749 |
}), 50); |
| 1750 |
} |
| 1751 |
} |
| 1752 |
|
| 1753 |
function done(e) { |
| 1754 |
counter = Infinity; |
| 1755 |
e_preventDefault(e); |
| 1756 |
focusInput(cm); |
| 1757 |
off(document, "mousemove", move); |
| 1758 |
off(document, "mouseup", up); |
| 1759 |
} |
| 1760 |
|
| 1761 |
var move = operation(cm, function(e) { |
| 1762 |
if (!ie && !e_button(e)) done(e); |
| 1763 |
else extend(e); |
| 1764 |
}); |
| 1765 |
var up = operation(cm, done); |
| 1766 |
on(document, "mousemove", move); |
| 1767 |
on(document, "mouseup", up); |
| 1768 |
} |
| 1769 |
|
| 1770 |
function clickInGutter(cm, e) { |
| 1771 |
var display = cm.display; |
| 1772 |
try { var mX = e.clientX, mY = e.clientY; } |
| 1773 |
catch(e) { return false; } |
| 1774 |
|
| 1775 |
if (mX >= Math.floor(getRect(display.gutters).right)) return false; |
| 1776 |
e_preventDefault(e); |
| 1777 |
if (!hasHandler(cm, "gutterClick")) return true; |
| 1778 |
|
| 1779 |
var lineBox = getRect(display.lineDiv); |
| 1780 |
if (mY > lineBox.bottom) return true; |
| 1781 |
mY -= lineBox.top - display.viewOffset; |
| 1782 |
|
| 1783 |
for (var i = 0; i < cm.options.gutters.length; ++i) { |
| 1784 |
var g = display.gutters.childNodes[i]; |
| 1785 |
if (g && getRect(g).right >= mX) { |
| 1786 |
var line = lineAtHeight(cm.doc, mY); |
| 1787 |
var gutter = cm.options.gutters[i]; |
| 1788 |
signalLater(cm, "gutterClick", cm, line, gutter, e); |
| 1789 |
break; |
| 1790 |
} |
| 1791 |
} |
| 1792 |
return true; |
| 1793 |
} |
| 1794 |
|
| 1795 |
// Kludge to work around strange IE behavior where it'll sometimes |
| 1796 |
// re-fire a series of drag-related events right after the drop (#1551) |
| 1797 |
var lastDrop = 0; |
| 1798 |
|
| 1799 |
function onDrop(e) { |
| 1800 |
var cm = this; |
| 1801 |
if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e) || (cm.options.onDragEvent && cm.options.onDragEvent(cm, addStop(e)))) |
| 1802 |
return; |
| 1803 |
e_preventDefault(e); |
| 1804 |
if (ie) lastDrop = +new Date; |
| 1805 |
var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files; |
| 1806 |
if (!pos || isReadOnly(cm)) return; |
| 1807 |
if (files && files.length && window.FileReader && window.File) { |
| 1808 |
var n = files.length, text = Array(n), read = 0; |
| 1809 |
var loadFile = function(file, i) { |
| 1810 |
var reader = new FileReader; |
| 1811 |
reader.onload = function() { |
| 1812 |
text[i] = reader.result; |
| 1813 |
if (++read == n) { |
| 1814 |
pos = clipPos(cm.doc, pos); |
| 1815 |
makeChange(cm.doc, {from: pos, to: pos, text: splitLines(text.join("\n")), origin: "paste"}, "around"); |
| 1816 |
} |
| 1817 |
}; |
| 1818 |
reader.readAsText(file); |
| 1819 |
}; |
| 1820 |
for (var i = 0; i < n; ++i) loadFile(files[i], i); |
| 1821 |
} else { |
| 1822 |
// Don't do a replace if the drop happened inside of the selected text. |
| 1823 |
if (cm.state.draggingText && !(posLess(pos, cm.doc.sel.from) || posLess(cm.doc.sel.to, pos))) { |
| 1824 |
cm.state.draggingText(e); |
| 1825 |
// Ensure the editor is re-focused |
| 1826 |
setTimeout(bind(focusInput, cm), 20); |
| 1827 |
return; |
| 1828 |
} |
| 1829 |
try { |
| 1830 |
var text = e.dataTransfer.getData("Text"); |
| 1831 |
if (text) { |
| 1832 |
var curFrom = cm.doc.sel.from, curTo = cm.doc.sel.to; |
| 1833 |
setSelection(cm.doc, pos, pos); |
| 1834 |
if (cm.state.draggingText) replaceRange(cm.doc, "", curFrom, curTo, "paste"); |
| 1835 |
cm.replaceSelection(text, null, "paste"); |
| 1836 |
focusInput(cm); |
| 1837 |
onFocus(cm); |
| 1838 |
} |
| 1839 |
} |
| 1840 |
catch(e){} |
| 1841 |
} |
| 1842 |
} |
| 1843 |
|
| 1844 |
function onDragStart(cm, e) { |
| 1845 |
if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return; } |
| 1846 |
if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) return; |
| 1847 |
|
| 1848 |
var txt = cm.getSelection(); |
| 1849 |
e.dataTransfer.setData("Text", txt); |
| 1850 |
|
| 1851 |
// Use dummy image instead of default browsers image. |
| 1852 |
// Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there. |
| 1853 |
if (e.dataTransfer.setDragImage && !safari) { |
| 1854 |
var img = elt("img", null, null, "position: fixed; left: 0; top: 0;"); |
| 1855 |
if (opera) { |
| 1856 |
img.width = img.height = 1; |
| 1857 |
cm.display.wrapper.appendChild(img); |
| 1858 |
// Force a relayout, or Opera won't use our image for some obscure reason |
| 1859 |
img._top = img.offsetTop; |
| 1860 |
} |
| 1861 |
e.dataTransfer.setDragImage(img, 0, 0); |
| 1862 |
if (opera) img.parentNode.removeChild(img); |
| 1863 |
} |
| 1864 |
} |
| 1865 |
|
| 1866 |
function setScrollTop(cm, val) { |
| 1867 |
if (Math.abs(cm.doc.scrollTop - val) < 2) return; |
| 1868 |
cm.doc.scrollTop = val; |
| 1869 |
if (!gecko) updateDisplay(cm, [], val); |
| 1870 |
if (cm.display.scroller.scrollTop != val) cm.display.scroller.scrollTop = val; |
| 1871 |
if (cm.display.scrollbarV.scrollTop != val) cm.display.scrollbarV.scrollTop = val; |
| 1872 |
if (gecko) updateDisplay(cm, []); |
| 1873 |
startWorker(cm, 100); |
| 1874 |
} |
| 1875 |
function setScrollLeft(cm, val, isScroller) { |
| 1876 |
if (isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) return; |
| 1877 |
val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth); |
| 1878 |
cm.doc.scrollLeft = val; |
| 1879 |
alignHorizontally(cm); |
| 1880 |
if (cm.display.scroller.scrollLeft != val) cm.display.scroller.scrollLeft = val; |
| 1881 |
if (cm.display.scrollbarH.scrollLeft != val) cm.display.scrollbarH.scrollLeft = val; |
| 1882 |
} |
| 1883 |
|
| 1884 |
// Since the delta values reported on mouse wheel events are |
| 1885 |
// unstandardized between browsers and even browser versions, and |
| 1886 |
// generally horribly unpredictable, this code starts by measuring |
| 1887 |
// the scroll effect that the first few mouse wheel events have, |
| 1888 |
// and, from that, detects the way it can convert deltas to pixel |
| 1889 |
// offsets afterwards. |
| 1890 |
// |
| 1891 |
// The reason we want to know the amount a wheel event will scroll |
| 1892 |
// is that it gives us a chance to update the display before the |
| 1893 |
// actual scrolling happens, reducing flickering. |
| 1894 |
|
| 1895 |
var wheelSamples = 0, wheelPixelsPerUnit = null; |
| 1896 |
// Fill in a browser-detected starting value on browsers where we |
| 1897 |
// know one. These don't have to be accurate -- the result of them |
| 1898 |
// being wrong would just be a slight flicker on the first wheel |
| 1899 |
// scroll (if it is large enough). |
| 1900 |
if (ie) wheelPixelsPerUnit = -.53; |
| 1901 |
else if (gecko) wheelPixelsPerUnit = 15; |
| 1902 |
else if (chrome) wheelPixelsPerUnit = -.7; |
| 1903 |
else if (safari) wheelPixelsPerUnit = -1/3; |
| 1904 |
|
| 1905 |
function onScrollWheel(cm, e) { |
| 1906 |
var dx = e.wheelDeltaX, dy = e.wheelDeltaY; |
| 1907 |
if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) dx = e.detail; |
| 1908 |
if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) dy = e.detail; |
| 1909 |
else if (dy == null) dy = e.wheelDelta; |
| 1910 |
|
| 1911 |
var display = cm.display, scroll = display.scroller; |
| 1912 |
// Quit if there's nothing to scroll here |
| 1913 |
if (!(dx && scroll.scrollWidth > scroll.clientWidth || |
| 1914 |
dy && scroll.scrollHeight > scroll.clientHeight)) return; |
| 1915 |
|
| 1916 |
// Webkit browsers on OS X abort momentum scrolls when the target |
| 1917 |
// of the scroll event is removed from the scrollable element. |
| 1918 |
// This hack (see related code in patchDisplay) makes sure the |
| 1919 |
// element is kept around. |
| 1920 |
if (dy && mac && webkit) { |
| 1921 |
for (var cur = e.target; cur != scroll; cur = cur.parentNode) { |
| 1922 |
if (cur.lineObj) { |
| 1923 |
cm.display.currentWheelTarget = cur; |
| 1924 |
break; |
| 1925 |
} |
| 1926 |
} |
| 1927 |
} |
| 1928 |
|
| 1929 |
// On some browsers, horizontal scrolling will cause redraws to |
| 1930 |
// happen before the gutter has been realigned, causing it to |
| 1931 |
// wriggle around in a most unseemly way. When we have an |
| 1932 |
// estimated pixels/delta value, we just handle horizontal |
| 1933 |
// scrolling entirely here. It'll be slightly off from native, but |
| 1934 |
// better than glitching out. |
| 1935 |
if (dx && !gecko && !opera && wheelPixelsPerUnit != null) { |
| 1936 |
if (dy) |
| 1937 |
setScrollTop(cm, Math.max(0, Math.min(scroll.scrollTop + dy * wheelPixelsPerUnit, scroll.scrollHeight - scroll.clientHeight))); |
| 1938 |
setScrollLeft(cm, Math.max(0, Math.min(scroll.scrollLeft + dx * wheelPixelsPerUnit, scroll.scrollWidth - scroll.clientWidth))); |
| 1939 |
e_preventDefault(e); |
| 1940 |
display.wheelStartX = null; // Abort measurement, if in progress |
| 1941 |
return; |
| 1942 |
} |
| 1943 |
|
| 1944 |
if (dy && wheelPixelsPerUnit != null) { |
| 1945 |
var pixels = dy * wheelPixelsPerUnit; |
| 1946 |
var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight; |
| 1947 |
if (pixels < 0) top = Math.max(0, top + pixels - 50); |
| 1948 |
else bot = Math.min(cm.doc.height, bot + pixels + 50); |
| 1949 |
updateDisplay(cm, [], {top: top, bottom: bot}); |
| 1950 |
} |
| 1951 |
|
| 1952 |
if (wheelSamples < 20) { |
| 1953 |
if (display.wheelStartX == null) { |
| 1954 |
display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop; |
| 1955 |
display.wheelDX = dx; display.wheelDY = dy; |
| 1956 |
setTimeout(function() { |
| 1957 |
if (display.wheelStartX == null) return; |
| 1958 |
var movedX = scroll.scrollLeft - display.wheelStartX; |
| 1959 |
var movedY = scroll.scrollTop - display.wheelStartY; |
| 1960 |
var sample = (movedY && display.wheelDY && movedY / display.wheelDY) || |
| 1961 |
(movedX && display.wheelDX && movedX / display.wheelDX); |
| 1962 |
display.wheelStartX = display.wheelStartY = null; |
| 1963 |
if (!sample) return; |
| 1964 |
wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1); |
| 1965 |
++wheelSamples; |
| 1966 |
}, 200); |
| 1967 |
} else { |
| 1968 |
display.wheelDX += dx; display.wheelDY += dy; |
| 1969 |
} |
| 1970 |
} |
| 1971 |
} |
| 1972 |
|
| 1973 |
function doHandleBinding(cm, bound, dropShift) { |
| 1974 |
if (typeof bound == "string") { |
| 1975 |
bound = commands[bound]; |
| 1976 |
if (!bound) return false; |
| 1977 |
} |
| 1978 |
// Ensure previous input has been read, so that the handler sees a |
| 1979 |
// consistent view of the document |
| 1980 |
if (cm.display.pollingFast && readInput(cm)) cm.display.pollingFast = false; |
| 1981 |
var doc = cm.doc, prevShift = doc.sel.shift, done = false; |
| 1982 |
try { |
| 1983 |
if (isReadOnly(cm)) cm.state.suppressEdits = true; |
| 1984 |
if (dropShift) doc.sel.shift = false; |
| 1985 |
done = bound(cm) != Pass; |
| 1986 |
} finally { |
| 1987 |
doc.sel.shift = prevShift; |
| 1988 |
cm.state.suppressEdits = false; |
| 1989 |
} |
| 1990 |
return done; |
| 1991 |
} |
| 1992 |
|
| 1993 |
function allKeyMaps(cm) { |
| 1994 |
var maps = cm.state.keyMaps.slice(0); |
| 1995 |
if (cm.options.extraKeys) maps.push(cm.options.extraKeys); |
| 1996 |
maps.push(cm.options.keyMap); |
| 1997 |
return maps; |
| 1998 |
} |
| 1999 |
|
| 2000 |
var maybeTransition; |
| 2001 |
function handleKeyBinding(cm, e) { |
| 2002 |
// Handle auto keymap transitions |
| 2003 |
var startMap = getKeyMap(cm.options.keyMap), next = startMap.auto; |
| 2004 |
clearTimeout(maybeTransition); |
| 2005 |
if (next && !isModifierKey(e)) maybeTransition = setTimeout(function() { |
| 2006 |
if (getKeyMap(cm.options.keyMap) == startMap) { |
| 2007 |
cm.options.keyMap = (next.call ? next.call(null, cm) : next); |
| 2008 |
keyMapChanged(cm); |
| 2009 |
} |
| 2010 |
}, 50); |
| 2011 |
|
| 2012 |
var name = keyName(e, true), handled = false; |
| 2013 |
if (!name) return false; |
| 2014 |
var keymaps = allKeyMaps(cm); |
| 2015 |
|
| 2016 |
if (e.shiftKey) { |
| 2017 |
// First try to resolve full name (including 'Shift-'). Failing |
| 2018 |
// that, see if there is a cursor-motion command (starting with |
| 2019 |
// 'go') bound to the keyname without 'Shift-'. |
| 2020 |
handled = lookupKey("Shift-" + name, keymaps, function(b) {return doHandleBinding(cm, b, true);}) |
| 2021 |
|| lookupKey(name, keymaps, function(b) { |
| 2022 |
if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion) |
| 2023 |
return doHandleBinding(cm, b); |
| 2024 |
}); |
| 2025 |
} else { |
| 2026 |
handled = lookupKey(name, keymaps, function(b) { return doHandleBinding(cm, b); }); |
| 2027 |
} |
| 2028 |
|
| 2029 |
if (handled) { |
| 2030 |
e_preventDefault(e); |
| 2031 |
restartBlink(cm); |
| 2032 |
if (ie_lt9) { e.oldKeyCode = e.keyCode; e.keyCode = 0; } |
| 2033 |
signalLater(cm, "keyHandled", cm, name, e); |
| 2034 |
} |
| 2035 |
return handled; |
| 2036 |
} |
| 2037 |
|
| 2038 |
function handleCharBinding(cm, e, ch) { |
| 2039 |
var handled = lookupKey("'" + ch + "'", allKeyMaps(cm), |
| 2040 |
function(b) { return doHandleBinding(cm, b, true); }); |
| 2041 |
if (handled) { |
| 2042 |
e_preventDefault(e); |
| 2043 |
restartBlink(cm); |
| 2044 |
signalLater(cm, "keyHandled", cm, "'" + ch + "'", e); |
| 2045 |
} |
| 2046 |
return handled; |
| 2047 |
} |
| 2048 |
|
| 2049 |
var lastStoppedKey = null; |
| 2050 |
function onKeyDown(e) { |
| 2051 |
var cm = this; |
| 2052 |
if (!cm.state.focused) onFocus(cm); |
| 2053 |
if (ie && e.keyCode == 27) { e.returnValue = false; } |
| 2054 |
if (signalDOMEvent(cm, e) || cm.options.onKeyEvent && cm.options.onKeyEvent(cm, addStop(e))) return; |
| 2055 |
var code = e.keyCode; |
| 2056 |
// IE does strange things with escape. |
| 2057 |
cm.doc.sel.shift = code == 16 || e.shiftKey; |
| 2058 |
// First give onKeyEvent option a chance to handle this. |
| 2059 |
var handled = handleKeyBinding(cm, e); |
| 2060 |
if (opera) { |
| 2061 |
lastStoppedKey = handled ? code : null; |
| 2062 |
// Opera has no cut event... we try to at least catch the key combo |
| 2063 |
if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey)) |
| 2064 |
cm.replaceSelection(""); |
| 2065 |
} |
| 2066 |
} |
| 2067 |
|
| 2068 |
function onKeyPress(e) { |
| 2069 |
var cm = this; |
| 2070 |
if (signalDOMEvent(cm, e) || cm.options.onKeyEvent && cm.options.onKeyEvent(cm, addStop(e))) return; |
| 2071 |
var keyCode = e.keyCode, charCode = e.charCode; |
| 2072 |
if (opera && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;} |
| 2073 |
if (((opera && (!e.which || e.which < 10)) || khtml) && handleKeyBinding(cm, e)) return; |
| 2074 |
var ch = String.fromCharCode(charCode == null ? keyCode : charCode); |
| 2075 |
if (this.options.electricChars && this.doc.mode.electricChars && |
| 2076 |
this.options.smartIndent && !isReadOnly(this) && |
| 2077 |
this.doc.mode.electricChars.indexOf(ch) > -1) |
| 2078 |
setTimeout(operation(cm, function() {indentLine(cm, cm.doc.sel.to.line, "smart");}), 75); |
| 2079 |
if (handleCharBinding(cm, e, ch)) return; |
| 2080 |
if (ie && !ie_lt9) cm.display.inputHasSelection = null; |
| 2081 |
fastPoll(cm); |
| 2082 |
} |
| 2083 |
|
| 2084 |
function onFocus(cm) { |
| 2085 |
if (cm.options.readOnly == "nocursor") return; |
| 2086 |
if (!cm.state.focused) { |
| 2087 |
signal(cm, "focus", cm); |
| 2088 |
cm.state.focused = true; |
| 2089 |
if (cm.display.wrapper.className.search(/\bCodeMirror-focused\b/) == -1) |
| 2090 |
cm.display.wrapper.className += " CodeMirror-focused"; |
| 2091 |
resetInput(cm, true); |
| 2092 |
} |
| 2093 |
slowPoll(cm); |
| 2094 |
restartBlink(cm); |
| 2095 |
} |
| 2096 |
function onBlur(cm) { |
| 2097 |
if (cm.state.focused) { |
| 2098 |
signal(cm, "blur", cm); |
| 2099 |
cm.state.focused = false; |
| 2100 |
cm.display.wrapper.className = cm.display.wrapper.className.replace(" CodeMirror-focused", ""); |
| 2101 |
} |
| 2102 |
clearInterval(cm.display.blinker); |
| 2103 |
setTimeout(function() {if (!cm.state.focused) cm.doc.sel.shift = false;}, 150); |
| 2104 |
} |
| 2105 |
|
| 2106 |
var detectingSelectAll; |
| 2107 |
function onContextMenu(cm, e) { |
| 2108 |
var display = cm.display, sel = cm.doc.sel; |
| 2109 |
if (eventInWidget(display, e)) return; |
| 2110 |
|
| 2111 |
var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop; |
| 2112 |
if (!pos || opera) return; // Opera is difficult. |
| 2113 |
if (posEq(sel.from, sel.to) || posLess(pos, sel.from) || !posLess(pos, sel.to)) |
| 2114 |
operation(cm, setSelection)(cm.doc, pos, pos); |
| 2115 |
|
| 2116 |
var oldCSS = display.input.style.cssText; |
| 2117 |
display.inputDiv.style.position = "absolute"; |
| 2118 |
display.input.style.cssText = "position: fixed; width: 30px; height: 30px; top: " + (e.clientY - 5) + |
| 2119 |
"px; left: " + (e.clientX - 5) + "px; z-index: 1000; background: white; outline: none;" + |
| 2120 |
"border-width: 0; outline: none; overflow: hidden; opacity: .05; -ms-opacity: .05; filter: alpha(opacity=5);"; |
| 2121 |
focusInput(cm); |
| 2122 |
resetInput(cm, true); |
| 2123 |
// Adds "Select all" to context menu in FF |
| 2124 |
if (posEq(sel.from, sel.to)) display.input.value = display.prevInput = " "; |
| 2125 |
|
| 2126 |
function prepareSelectAllHack() { |
| 2127 |
if (display.input.selectionStart != null) { |
| 2128 |
var extval = display.input.value = " " + (posEq(sel.from, sel.to) ? "" : display.input.value); |
| 2129 |
display.prevInput = " "; |
| 2130 |
display.input.selectionStart = 1; display.input.selectionEnd = extval.length; |
| 2131 |
} |
| 2132 |
} |
| 2133 |
function rehide() { |
| 2134 |
display.inputDiv.style.position = "relative"; |
| 2135 |
display.input.style.cssText = oldCSS; |
| 2136 |
if (ie_lt9) display.scrollbarV.scrollTop = display.scroller.scrollTop = scrollPos; |
| 2137 |
slowPoll(cm); |
| 2138 |
|
| 2139 |
// Try to detect the user choosing select-all |
| 2140 |
if (display.input.selectionStart != null) { |
| 2141 |
if (!ie || ie_lt9) prepareSelectAllHack(); |
| 2142 |
clearTimeout(detectingSelectAll); |
| 2143 |
var i = 0, poll = function(){ |
| 2144 |
if (display.prevInput == " " && display.input.selectionStart == 0) |
| 2145 |
operation(cm, commands.selectAll)(cm); |
| 2146 |
else if (i++ < 10) detectingSelectAll = setTimeout(poll, 500); |
| 2147 |
else resetInput(cm); |
| 2148 |
}; |
| 2149 |
detectingSelectAll = setTimeout(poll, 200); |
| 2150 |
} |
| 2151 |
} |
| 2152 |
|
| 2153 |
if (ie && !ie_lt9) prepareSelectAllHack(); |
| 2154 |
if (captureMiddleClick) { |
| 2155 |
e_stop(e); |
| 2156 |
var mouseup = function() { |
| 2157 |
off(window, "mouseup", mouseup); |
| 2158 |
setTimeout(rehide, 20); |
| 2159 |
}; |
| 2160 |
on(window, "mouseup", mouseup); |
| 2161 |
} else { |
| 2162 |
setTimeout(rehide, 50); |
| 2163 |
} |
| 2164 |
} |
| 2165 |
|
| 2166 |
// UPDATING |
| 2167 |
|
| 2168 |
var changeEnd = CodeMirror.changeEnd = function(change) { |
| 2169 |
if (!change.text) return change.to; |
| 2170 |
return Pos(change.from.line + change.text.length - 1, |
| 2171 |
lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0)); |
| 2172 |
}; |
| 2173 |
|
| 2174 |
// Make sure a position will be valid after the given change. |
| 2175 |
function clipPostChange(doc, change, pos) { |
| 2176 |
if (!posLess(change.from, pos)) return clipPos(doc, pos); |
| 2177 |
var diff = (change.text.length - 1) - (change.to.line - change.from.line); |
| 2178 |
if (pos.line > change.to.line + diff) { |
| 2179 |
var preLine = pos.line - diff, lastLine = doc.first + doc.size - 1; |
| 2180 |
if (preLine > lastLine) return Pos(lastLine, getLine(doc, lastLine).text.length); |
| 2181 |
return clipToLen(pos, getLine(doc, preLine).text.length); |
| 2182 |
} |
| 2183 |
if (pos.line == change.to.line + diff) |
| 2184 |
return clipToLen(pos, lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0) + |
| 2185 |
getLine(doc, change.to.line).text.length - change.to.ch); |
| 2186 |
var inside = pos.line - change.from.line; |
| 2187 |
return clipToLen(pos, change.text[inside].length + (inside ? 0 : change.from.ch)); |
| 2188 |
} |
| 2189 |
|
| 2190 |
// Hint can be null|"end"|"start"|"around"|{anchor,head} |
| 2191 |
function computeSelAfterChange(doc, change, hint) { |
| 2192 |
if (hint && typeof hint == "object") // Assumed to be {anchor, head} object |
| 2193 |
return {anchor: clipPostChange(doc, change, hint.anchor), |
| 2194 |
head: clipPostChange(doc, change, hint.head)}; |
| 2195 |
|
| 2196 |
if (hint == "start") return {anchor: change.from, head: change.from}; |
| 2197 |
|
| 2198 |
var end = changeEnd(change); |
| 2199 |
if (hint == "around") return {anchor: change.from, head: end}; |
| 2200 |
if (hint == "end") return {anchor: end, head: end}; |
| 2201 |
|
| 2202 |
// hint is null, leave the selection alone as much as possible |
| 2203 |
var adjustPos = function(pos) { |
| 2204 |
if (posLess(pos, change.from)) return pos; |
| 2205 |
if (!posLess(change.to, pos)) return end; |
| 2206 |
|
| 2207 |
var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch; |
| 2208 |
if (pos.line == change.to.line) ch += end.ch - change.to.ch; |
| 2209 |
return Pos(line, ch); |
| 2210 |
}; |
| 2211 |
return {anchor: adjustPos(doc.sel.anchor), head: adjustPos(doc.sel.head)}; |
| 2212 |
} |
| 2213 |
|
| 2214 |
function filterChange(doc, change, update) { |
| 2215 |
var obj = { |
| 2216 |
canceled: false, |
| 2217 |
from: change.from, |
| 2218 |
to: change.to, |
| 2219 |
text: change.text, |
| 2220 |
origin: change.origin, |
| 2221 |
cancel: function() { this.canceled = true; } |
| 2222 |
}; |
| 2223 |
if (update) obj.update = function(from, to, text, origin) { |
| 2224 |
if (from) this.from = clipPos(doc, from); |
| 2225 |
if (to) this.to = clipPos(doc, to); |
| 2226 |
if (text) this.text = text; |
| 2227 |
if (origin !== undefined) this.origin = origin; |
| 2228 |
}; |
| 2229 |
signal(doc, "beforeChange", doc, obj); |
| 2230 |
if (doc.cm) signal(doc.cm, "beforeChange", doc.cm, obj); |
| 2231 |
|
| 2232 |
if (obj.canceled) return null; |
| 2233 |
return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin}; |
| 2234 |
} |
| 2235 |
|
| 2236 |
// Replace the range from from to to by the strings in replacement. |
| 2237 |
// change is a {from, to, text [, origin]} object |
| 2238 |
function makeChange(doc, change, selUpdate, ignoreReadOnly) { |
| 2239 |
if (doc.cm) { |
| 2240 |
if (!doc.cm.curOp) return operation(doc.cm, makeChange)(doc, change, selUpdate, ignoreReadOnly); |
| 2241 |
if (doc.cm.state.suppressEdits) return; |
| 2242 |
} |
| 2243 |
|
| 2244 |
if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) { |
| 2245 |
change = filterChange(doc, change, true); |
| 2246 |
if (!change) return; |
| 2247 |
} |
| 2248 |
|
| 2249 |
// Possibly split or suppress the update based on the presence |
| 2250 |
// of read-only spans in its range. |
| 2251 |
var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to); |
| 2252 |
if (split) { |
| 2253 |
for (var i = split.length - 1; i >= 1; --i) |
| 2254 |
makeChangeNoReadonly(doc, {from: split[i].from, to: split[i].to, text: [""]}); |
| 2255 |
if (split.length) |
| 2256 |
makeChangeNoReadonly(doc, {from: split[0].from, to: split[0].to, text: change.text}, selUpdate); |
| 2257 |
} else { |
| 2258 |
makeChangeNoReadonly(doc, change, selUpdate); |
| 2259 |
} |
| 2260 |
} |
| 2261 |
|
| 2262 |
function makeChangeNoReadonly(doc, change, selUpdate) { |
| 2263 |
var selAfter = computeSelAfterChange(doc, change, selUpdate); |
| 2264 |
addToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN); |
| 2265 |
|
| 2266 |
makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change)); |
| 2267 |
var rebased = []; |
| 2268 |
|
| 2269 |
linkedDocs(doc, function(doc, sharedHist) { |
| 2270 |
if (!sharedHist && indexOf(rebased, doc.history) == -1) { |
| 2271 |
rebaseHist(doc.history, change); |
| 2272 |
rebased.push(doc.history); |
| 2273 |
} |
| 2274 |
makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change)); |
| 2275 |
}); |
| 2276 |
} |
| 2277 |
|
| 2278 |
function makeChangeFromHistory(doc, type) { |
| 2279 |
if (doc.cm && doc.cm.state.suppressEdits) return; |
| 2280 |
|
| 2281 |
var hist = doc.history; |
| 2282 |
var event = (type == "undo" ? hist.done : hist.undone).pop(); |
| 2283 |
if (!event) return; |
| 2284 |
|
| 2285 |
var anti = {changes: [], anchorBefore: event.anchorAfter, headBefore: event.headAfter, |
| 2286 |
anchorAfter: event.anchorBefore, headAfter: event.headBefore, |
| 2287 |
generation: hist.generation}; |
| 2288 |
(type == "undo" ? hist.undone : hist.done).push(anti); |
| 2289 |
hist.generation = event.generation || ++hist.maxGeneration; |
| 2290 |
|
| 2291 |
var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange"); |
| 2292 |
|
| 2293 |
for (var i = event.changes.length - 1; i >= 0; --i) { |
| 2294 |
var change = event.changes[i]; |
| 2295 |
change.origin = type; |
| 2296 |
if (filter && !filterChange(doc, change, false)) { |
| 2297 |
(type == "undo" ? hist.done : hist.undone).length = 0; |
| 2298 |
return; |
| 2299 |
} |
| 2300 |
|
| 2301 |
anti.changes.push(historyChangeFromChange(doc, change)); |
| 2302 |
|
| 2303 |
var after = i ? computeSelAfterChange(doc, change, null) |
| 2304 |
: {anchor: event.anchorBefore, head: event.headBefore}; |
| 2305 |
makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change)); |
| 2306 |
var rebased = []; |
| 2307 |
|
| 2308 |
linkedDocs(doc, function(doc, sharedHist) { |
| 2309 |
if (!sharedHist && indexOf(rebased, doc.history) == -1) { |
| 2310 |
rebaseHist(doc.history, change); |
| 2311 |
rebased.push(doc.history); |
| 2312 |
} |
| 2313 |
makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change)); |
| 2314 |
}); |
| 2315 |
} |
| 2316 |
} |
| 2317 |
|
| 2318 |
function shiftDoc(doc, distance) { |
| 2319 |
function shiftPos(pos) {return Pos(pos.line + distance, pos.ch);} |
| 2320 |
doc.first += distance; |
| 2321 |
if (doc.cm) regChange(doc.cm, doc.first, doc.first, distance); |
| 2322 |
doc.sel.head = shiftPos(doc.sel.head); doc.sel.anchor = shiftPos(doc.sel.anchor); |
| 2323 |
doc.sel.from = shiftPos(doc.sel.from); doc.sel.to = shiftPos(doc.sel.to); |
| 2324 |
} |
| 2325 |
|
| 2326 |
function makeChangeSingleDoc(doc, change, selAfter, spans) { |
| 2327 |
if (doc.cm && !doc.cm.curOp) |
| 2328 |
return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans); |
| 2329 |
|
| 2330 |
if (change.to.line < doc.first) { |
| 2331 |
shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line)); |
| 2332 |
return; |
| 2333 |
} |
| 2334 |
if (change.from.line > doc.lastLine()) return; |
| 2335 |
|
| 2336 |
// Clip the change to the size of this doc |
| 2337 |
if (change.from.line < doc.first) { |
| 2338 |
var shift = change.text.length - 1 - (doc.first - change.from.line); |
| 2339 |
shiftDoc(doc, shift); |
| 2340 |
change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch), |
| 2341 |
text: [lst(change.text)], origin: change.origin}; |
| 2342 |
} |
| 2343 |
var last = doc.lastLine(); |
| 2344 |
if (change.to.line > last) { |
| 2345 |
change = {from: change.from, to: Pos(last, getLine(doc, last).text.length), |
| 2346 |
text: [change.text[0]], origin: change.origin}; |
| 2347 |
} |
| 2348 |
|
| 2349 |
change.removed = getBetween(doc, change.from, change.to); |
| 2350 |
|
| 2351 |
if (!selAfter) selAfter = computeSelAfterChange(doc, change, null); |
| 2352 |
if (doc.cm) makeChangeSingleDocInEditor(doc.cm, change, spans, selAfter); |
| 2353 |
else updateDoc(doc, change, spans, selAfter); |
| 2354 |
} |
| 2355 |
|
| 2356 |
function makeChangeSingleDocInEditor(cm, change, spans, selAfter) { |
| 2357 |
var doc = cm.doc, display = cm.display, from = change.from, to = change.to; |
| 2358 |
|
| 2359 |
var recomputeMaxLength = false, checkWidthStart = from.line; |
| 2360 |
if (!cm.options.lineWrapping) { |
| 2361 |
checkWidthStart = lineNo(visualLine(doc, getLine(doc, from.line))); |
| 2362 |
doc.iter(checkWidthStart, to.line + 1, function(line) { |
| 2363 |
if (line == display.maxLine) { |
| 2364 |
recomputeMaxLength = true; |
| 2365 |
return true; |
| 2366 |
} |
| 2367 |
}); |
| 2368 |
} |
| 2369 |
|
| 2370 |
if (!posLess(doc.sel.head, change.from) && !posLess(change.to, doc.sel.head)) |
| 2371 |
cm.curOp.cursorActivity = true; |
| 2372 |
|
| 2373 |
updateDoc(doc, change, spans, selAfter, estimateHeight(cm)); |
| 2374 |
|
| 2375 |
if (!cm.options.lineWrapping) { |
| 2376 |
doc.iter(checkWidthStart, from.line + change.text.length, function(line) { |
| 2377 |
var len = lineLength(doc, line); |
| 2378 |
if (len > display.maxLineLength) { |
| 2379 |
display.maxLine = line; |
| 2380 |
display.maxLineLength = len; |
| 2381 |
display.maxLineChanged = true; |
| 2382 |
recomputeMaxLength = false; |
| 2383 |
} |
| 2384 |
}); |
| 2385 |
if (recomputeMaxLength) cm.curOp.updateMaxLine = true; |
| 2386 |
} |
| 2387 |
|
| 2388 |
// Adjust frontier, schedule worker |
| 2389 |
doc.frontier = Math.min(doc.frontier, from.line); |
| 2390 |
startWorker(cm, 400); |
| 2391 |
|
| 2392 |
var lendiff = change.text.length - (to.line - from.line) - 1; |
| 2393 |
// Remember that these lines changed, for updating the display |
| 2394 |
regChange(cm, from.line, to.line + 1, lendiff); |
| 2395 |
|
| 2396 |
if (hasHandler(cm, "change")) { |
| 2397 |
var changeObj = {from: from, to: to, |
| 2398 |
text: change.text, |
| 2399 |
removed: change.removed, |
| 2400 |
origin: change.origin}; |
| 2401 |
if (cm.curOp.textChanged) { |
| 2402 |
for (var cur = cm.curOp.textChanged; cur.next; cur = cur.next) {} |
| 2403 |
cur.next = changeObj; |
| 2404 |
} else cm.curOp.textChanged = changeObj; |
| 2405 |
} |
| 2406 |
} |
| 2407 |
|
| 2408 |
function replaceRange(doc, code, from, to, origin) { |
| 2409 |
if (!to) to = from; |
| 2410 |
if (posLess(to, from)) { var tmp = to; to = from; from = tmp; } |
| 2411 |
if (typeof code == "string") code = splitLines(code); |
| 2412 |
makeChange(doc, {from: from, to: to, text: code, origin: origin}, null); |
| 2413 |
} |
| 2414 |
|
| 2415 |
// POSITION OBJECT |
| 2416 |
|
| 2417 |
function Pos(line, ch) { |
| 2418 |
if (!(this instanceof Pos)) return new Pos(line, ch); |
| 2419 |
this.line = line; this.ch = ch; |
| 2420 |
} |
| 2421 |
CodeMirror.Pos = Pos; |
| 2422 |
|
| 2423 |
function posEq(a, b) {return a.line == b.line && a.ch == b.ch;} |
| 2424 |
function posLess(a, b) {return a.line < b.line || (a.line == b.line && a.ch < b.ch);} |
| 2425 |
function copyPos(x) {return Pos(x.line, x.ch);} |
| 2426 |
|
| 2427 |
// SELECTION |
| 2428 |
|
| 2429 |
function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1));} |
| 2430 |
function clipPos(doc, pos) { |
| 2431 |
if (pos.line < doc.first) return Pos(doc.first, 0); |
| 2432 |
var last = doc.first + doc.size - 1; |
| 2433 |
if (pos.line > last) return Pos(last, getLine(doc, last).text.length); |
| 2434 |
return clipToLen(pos, getLine(doc, pos.line).text.length); |
| 2435 |
} |
| 2436 |
function clipToLen(pos, linelen) { |
| 2437 |
var ch = pos.ch; |
| 2438 |
if (ch == null || ch > linelen) return Pos(pos.line, linelen); |
| 2439 |
else if (ch < 0) return Pos(pos.line, 0); |
| 2440 |
else return pos; |
| 2441 |
} |
| 2442 |
function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size;} |
| 2443 |
|
| 2444 |
// If shift is held, this will move the selection anchor. Otherwise, |
| 2445 |
// it'll set the whole selection. |
| 2446 |
function extendSelection(doc, pos, other, bias) { |
| 2447 |
if (doc.sel.shift || doc.sel.extend) { |
| 2448 |
var anchor = doc.sel.anchor; |
| 2449 |
if (other) { |
| 2450 |
var posBefore = posLess(pos, anchor); |
| 2451 |
if (posBefore != posLess(other, anchor)) { |
| 2452 |
anchor = pos; |
| 2453 |
pos = other; |
| 2454 |
} else if (posBefore != posLess(pos, other)) { |
| 2455 |
pos = other; |
| 2456 |
} |
| 2457 |
} |
| 2458 |
setSelection(doc, anchor, pos, bias); |
| 2459 |
} else { |
| 2460 |
setSelection(doc, pos, other || pos, bias); |
| 2461 |
} |
| 2462 |
if (doc.cm) doc.cm.curOp.userSelChange = true; |
| 2463 |
} |
| 2464 |
|
| 2465 |
function filterSelectionChange(doc, anchor, head) { |
| 2466 |
var obj = {anchor: anchor, head: head}; |
| 2467 |
signal(doc, "beforeSelectionChange", doc, obj); |
| 2468 |
if (doc.cm) signal(doc.cm, "beforeSelectionChange", doc.cm, obj); |
| 2469 |
obj.anchor = clipPos(doc, obj.anchor); obj.head = clipPos(doc, obj.head); |
| 2470 |
return obj; |
| 2471 |
} |
| 2472 |
|
| 2473 |
// Update the selection. Last two args are only used by |
| 2474 |
// updateDoc, since they have to be expressed in the line |
| 2475 |
// numbers before the update. |
| 2476 |
function setSelection(doc, anchor, head, bias, checkAtomic) { |
| 2477 |
if (!checkAtomic && hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange")) { |
| 2478 |
var filtered = filterSelectionChange(doc, anchor, head); |
| 2479 |
head = filtered.head; |
| 2480 |
anchor = filtered.anchor; |
| 2481 |
} |
| 2482 |
|
| 2483 |
var sel = doc.sel; |
| 2484 |
sel.goalColumn = null; |
| 2485 |
// Skip over atomic spans. |
| 2486 |
if (checkAtomic || !posEq(anchor, sel.anchor)) |
| 2487 |
anchor = skipAtomic(doc, anchor, bias, checkAtomic != "push"); |
| 2488 |
if (checkAtomic || !posEq(head, sel.head)) |
| 2489 |
head = skipAtomic(doc, head, bias, checkAtomic != "push"); |
| 2490 |
|
| 2491 |
if (posEq(sel.anchor, anchor) && posEq(sel.head, head)) return; |
| 2492 |
|
| 2493 |
sel.anchor = anchor; sel.head = head; |
| 2494 |
var inv = posLess(head, anchor); |
| 2495 |
sel.from = inv ? head : anchor; |
| 2496 |
sel.to = inv ? anchor : head; |
| 2497 |
|
| 2498 |
if (doc.cm) |
| 2499 |
doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = |
| 2500 |
doc.cm.curOp.cursorActivity = true; |
| 2501 |
|
| 2502 |
signalLater(doc, "cursorActivity", doc); |
| 2503 |
} |
| 2504 |
|
| 2505 |
function reCheckSelection(cm) { |
| 2506 |
setSelection(cm.doc, cm.doc.sel.from, cm.doc.sel.to, null, "push"); |
| 2507 |
} |
| 2508 |
|
| 2509 |
function skipAtomic(doc, pos, bias, mayClear) { |
| 2510 |
var flipped = false, curPos = pos; |
| 2511 |
var dir = bias || 1; |
| 2512 |
doc.cantEdit = false; |
| 2513 |
search: for (;;) { |
| 2514 |
var line = getLine(doc, curPos.line); |
| 2515 |
if (line.markedSpans) { |
| 2516 |
for (var i = 0; i < line.markedSpans.length; ++i) { |
| 2517 |
var sp = line.markedSpans[i], m = sp.marker; |
| 2518 |
if ((sp.from == null || (m.inclusiveLeft ? sp.from <= curPos.ch : sp.from < curPos.ch)) && |
| 2519 |
(sp.to == null || (m.inclusiveRight ? sp.to >= curPos.ch : sp.to > curPos.ch))) { |
| 2520 |
if (mayClear) { |
| 2521 |
signal(m, "beforeCursorEnter"); |
| 2522 |
if (m.explicitlyCleared) { |
| 2523 |
if (!line.markedSpans) break; |
| 2524 |
else {--i; continue;} |
| 2525 |
} |
| 2526 |
} |
| 2527 |
if (!m.atomic) continue; |
| 2528 |
var newPos = m.find()[dir < 0 ? "from" : "to"]; |
| 2529 |
if (posEq(newPos, curPos)) { |
| 2530 |
newPos.ch += dir; |
| 2531 |
if (newPos.ch < 0) { |
| 2532 |
if (newPos.line > doc.first) newPos = clipPos(doc, Pos(newPos.line - 1)); |
| 2533 |
else newPos = null; |
| 2534 |
} else if (newPos.ch > line.text.length) { |
| 2535 |
if (newPos.line < doc.first + doc.size - 1) newPos = Pos(newPos.line + 1, 0); |
| 2536 |
else newPos = null; |
| 2537 |
} |
| 2538 |
if (!newPos) { |
| 2539 |
if (flipped) { |
| 2540 |
// Driven in a corner -- no valid cursor position found at all |
| 2541 |
// -- try again *with* clearing, if we didn't already |
| 2542 |
if (!mayClear) return skipAtomic(doc, pos, bias, true); |
| 2543 |
// Otherwise, turn off editing until further notice, and return the start of the doc |
| 2544 |
doc.cantEdit = true; |
| 2545 |
return Pos(doc.first, 0); |
| 2546 |
} |
| 2547 |
flipped = true; newPos = pos; dir = -dir; |
| 2548 |
} |
| 2549 |
} |
| 2550 |
curPos = newPos; |
| 2551 |
continue search; |
| 2552 |
} |
| 2553 |
} |
| 2554 |
} |
| 2555 |
return curPos; |
| 2556 |
} |
| 2557 |
} |
| 2558 |
|
| 2559 |
// SCROLLING |
| 2560 |
|
| 2561 |
function scrollCursorIntoView(cm) { |
| 2562 |
var coords = scrollPosIntoView(cm, cm.doc.sel.head, cm.options.cursorScrollMargin); |
| 2563 |
if (!cm.state.focused) return; |
| 2564 |
var display = cm.display, box = getRect(display.sizer), doScroll = null; |
| 2565 |
if (coords.top + box.top < 0) doScroll = true; |
| 2566 |
else if (coords.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) doScroll = false; |
| 2567 |
if (doScroll != null && !phantom) { |
| 2568 |
var hidden = display.cursor.style.display == "none"; |
| 2569 |
if (hidden) { |
| 2570 |
display.cursor.style.display = ""; |
| 2571 |
display.cursor.style.left = coords.left + "px"; |
| 2572 |
display.cursor.style.top = (coords.top - display.viewOffset) + "px"; |
| 2573 |
} |
| 2574 |
display.cursor.scrollIntoView(doScroll); |
| 2575 |
if (hidden) display.cursor.style.display = "none"; |
| 2576 |
} |
| 2577 |
} |
| 2578 |
|
| 2579 |
function scrollPosIntoView(cm, pos, margin) { |
| 2580 |
if (margin == null) margin = 0; |
| 2581 |
for (;;) { |
| 2582 |
var changed = false, coords = cursorCoords(cm, pos); |
| 2583 |
var scrollPos = calculateScrollPos(cm, coords.left, coords.top - margin, coords.left, coords.bottom + margin); |
| 2584 |
var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft; |
| 2585 |
if (scrollPos.scrollTop != null) { |
| 2586 |
setScrollTop(cm, scrollPos.scrollTop); |
| 2587 |
if (Math.abs(cm.doc.scrollTop - startTop) > 1) changed = true; |
| 2588 |
} |
| 2589 |
if (scrollPos.scrollLeft != null) { |
| 2590 |
setScrollLeft(cm, scrollPos.scrollLeft); |
| 2591 |
if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) changed = true; |
| 2592 |
} |
| 2593 |
if (!changed) return coords; |
| 2594 |
} |
| 2595 |
} |
| 2596 |
|
| 2597 |
function scrollIntoView(cm, x1, y1, x2, y2) { |
| 2598 |
var scrollPos = calculateScrollPos(cm, x1, y1, x2, y2); |
| 2599 |
if (scrollPos.scrollTop != null) setScrollTop(cm, scrollPos.scrollTop); |
| 2600 |
if (scrollPos.scrollLeft != null) setScrollLeft(cm, scrollPos.scrollLeft); |
| 2601 |
} |
| 2602 |
|
| 2603 |
function calculateScrollPos(cm, x1, y1, x2, y2) { |
| 2604 |
var display = cm.display, snapMargin = textHeight(cm.display); |
| 2605 |
if (y1 < 0) y1 = 0; |
| 2606 |
var screen = display.scroller.clientHeight - scrollerCutOff, screentop = display.scroller.scrollTop, result = {}; |
| 2607 |
var docBottom = cm.doc.height + paddingVert(display); |
| 2608 |
var atTop = y1 < snapMargin, atBottom = y2 > docBottom - snapMargin; |
| 2609 |
if (y1 < screentop) { |
| 2610 |
result.scrollTop = atTop ? 0 : y1; |
| 2611 |
} else if (y2 > screentop + screen) { |
| 2612 |
var newTop = Math.min(y1, (atBottom ? docBottom : y2) - screen); |
| 2613 |
if (newTop != screentop) result.scrollTop = newTop; |
| 2614 |
} |
| 2615 |
|
| 2616 |
var screenw = display.scroller.clientWidth - scrollerCutOff, screenleft = display.scroller.scrollLeft; |
| 2617 |
x1 += display.gutters.offsetWidth; x2 += display.gutters.offsetWidth; |
| 2618 |
var gutterw = display.gutters.offsetWidth; |
| 2619 |
var atLeft = x1 < gutterw + 10; |
| 2620 |
if (x1 < screenleft + gutterw || atLeft) { |
| 2621 |
if (atLeft) x1 = 0; |
| 2622 |
result.scrollLeft = Math.max(0, x1 - 10 - gutterw); |
| 2623 |
} else if (x2 > screenw + screenleft - 3) { |
| 2624 |
result.scrollLeft = x2 + 10 - screenw; |
| 2625 |
} |
| 2626 |
return result; |
| 2627 |
} |
| 2628 |
|
| 2629 |
function updateScrollPos(cm, left, top) { |
| 2630 |
cm.curOp.updateScrollPos = {scrollLeft: left == null ? cm.doc.scrollLeft : left, |
| 2631 |
scrollTop: top == null ? cm.doc.scrollTop : top}; |
| 2632 |
} |
| 2633 |
|
| 2634 |
function addToScrollPos(cm, left, top) { |
| 2635 |
var pos = cm.curOp.updateScrollPos || (cm.curOp.updateScrollPos = {scrollLeft: cm.doc.scrollLeft, scrollTop: cm.doc.scrollTop}); |
| 2636 |
var scroll = cm.display.scroller; |
| 2637 |
pos.scrollTop = Math.max(0, Math.min(scroll.scrollHeight - scroll.clientHeight, pos.scrollTop + top)); |
| 2638 |
pos.scrollLeft = Math.max(0, Math.min(scroll.scrollWidth - scroll.clientWidth, pos.scrollLeft + left)); |
| 2639 |
} |
| 2640 |
|
| 2641 |
// API UTILITIES |
| 2642 |
|
| 2643 |
function indentLine(cm, n, how, aggressive) { |
| 2644 |
var doc = cm.doc; |
| 2645 |
if (how == null) how = "add"; |
| 2646 |
if (how == "smart") { |
| 2647 |
if (!cm.doc.mode.indent) how = "prev"; |
| 2648 |
else var state = getStateBefore(cm, n); |
| 2649 |
} |
| 2650 |
|
| 2651 |
var tabSize = cm.options.tabSize; |
| 2652 |
var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize); |
| 2653 |
var curSpaceString = line.text.match(/^\s*/)[0], indentation; |
| 2654 |
if (how == "smart") { |
| 2655 |
indentation = cm.doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text); |
| 2656 |
if (indentation == Pass) { |
| 2657 |
if (!aggressive) return; |
| 2658 |
how = "prev"; |
| 2659 |
} |
| 2660 |
} |
| 2661 |
if (how == "prev") { |
| 2662 |
if (n > doc.first) indentation = countColumn(getLine(doc, n-1).text, null, tabSize); |
| 2663 |
else indentation = 0; |
| 2664 |
} else if (how == "add") { |
| 2665 |
indentation = curSpace + cm.options.indentUnit; |
| 2666 |
} else if (how == "subtract") { |
| 2667 |
indentation = curSpace - cm.options.indentUnit; |
| 2668 |
} else if (typeof how == "number") { |
| 2669 |
indentation = curSpace + how; |
| 2670 |
} |
| 2671 |
indentation = Math.max(0, indentation); |
| 2672 |
|
| 2673 |
var indentString = "", pos = 0; |
| 2674 |
if (cm.options.indentWithTabs) |
| 2675 |
for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";} |
| 2676 |
if (pos < indentation) indentString += spaceStr(indentation - pos); |
| 2677 |
|
| 2678 |
if (indentString != curSpaceString) |
| 2679 |
replaceRange(cm.doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input"); |
| 2680 |
line.stateAfter = null; |
| 2681 |
} |
| 2682 |
|
| 2683 |
function changeLine(cm, handle, op) { |
| 2684 |
var no = handle, line = handle, doc = cm.doc; |
| 2685 |
if (typeof handle == "number") line = getLine(doc, clipLine(doc, handle)); |
| 2686 |
else no = lineNo(handle); |
| 2687 |
if (no == null) return null; |
| 2688 |
if (op(line, no)) regChange(cm, no, no + 1); |
| 2689 |
else return null; |
| 2690 |
return line; |
| 2691 |
} |
| 2692 |
|
| 2693 |
function findPosH(doc, pos, dir, unit, visually) { |
| 2694 |
var line = pos.line, ch = pos.ch, origDir = dir; |
| 2695 |
var lineObj = getLine(doc, line); |
| 2696 |
var possible = true; |
| 2697 |
function findNextLine() { |
| 2698 |
var l = line + dir; |
| 2699 |
if (l < doc.first || l >= doc.first + doc.size) return (possible = false); |
| 2700 |
line = l; |
| 2701 |
return lineObj = getLine(doc, l); |
| 2702 |
} |
| 2703 |
function moveOnce(boundToLine) { |
| 2704 |
var next = (visually ? moveVisually : moveLogically)(lineObj, ch, dir, true); |
| 2705 |
if (next == null) { |
| 2706 |
if (!boundToLine && findNextLine()) { |
| 2707 |
if (visually) ch = (dir < 0 ? lineRight : lineLeft)(lineObj); |
| 2708 |
else ch = dir < 0 ? lineObj.text.length : 0; |
| 2709 |
} else return (possible = false); |
| 2710 |
} else ch = next; |
| 2711 |
return true; |
| 2712 |
} |
| 2713 |
|
| 2714 |
if (unit == "char") moveOnce(); |
| 2715 |
else if (unit == "column") moveOnce(true); |
| 2716 |
else if (unit == "word" || unit == "group") { |
| 2717 |
var sawType = null, group = unit == "group"; |
| 2718 |
for (var first = true;; first = false) { |
| 2719 |
if (dir < 0 && !moveOnce(!first)) break; |
| 2720 |
var cur = lineObj.text.charAt(ch) || "\n"; |
| 2721 |
var type = isWordChar(cur) ? "w" |
| 2722 |
: !group ? null |
| 2723 |
: /\s/.test(cur) ? null |
| 2724 |
: "p"; |
| 2725 |
if (sawType && sawType != type) { |
| 2726 |
if (dir < 0) {dir = 1; moveOnce();} |
| 2727 |
break; |
| 2728 |
} |
| 2729 |
if (type) sawType = type; |
| 2730 |
if (dir > 0 && !moveOnce(!first)) break; |
| 2731 |
} |
| 2732 |
} |
| 2733 |
var result = skipAtomic(doc, Pos(line, ch), origDir, true); |
| 2734 |
if (!possible) result.hitSide = true; |
| 2735 |
return result; |
| 2736 |
} |
| 2737 |
|
| 2738 |
function findPosV(cm, pos, dir, unit) { |
| 2739 |
var doc = cm.doc, x = pos.left, y; |
| 2740 |
if (unit == "page") { |
| 2741 |
var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight); |
| 2742 |
y = pos.top + dir * (pageSize - (dir < 0 ? 1.5 : .5) * textHeight(cm.display)); |
| 2743 |
} else if (unit == "line") { |
| 2744 |
y = dir > 0 ? pos.bottom + 3 : pos.top - 3; |
| 2745 |
} |
| 2746 |
for (;;) { |
| 2747 |
var target = coordsChar(cm, x, y); |
| 2748 |
if (!target.outside) break; |
| 2749 |
if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break; } |
| 2750 |
y += dir * 5; |
| 2751 |
} |
| 2752 |
return target; |
| 2753 |
} |
| 2754 |
|
| 2755 |
function findWordAt(line, pos) { |
| 2756 |
var start = pos.ch, end = pos.ch; |
| 2757 |
if (line) { |
| 2758 |
if (pos.xRel < 0 || end == line.length) --start; else ++end; |
| 2759 |
var startChar = line.charAt(start); |
| 2760 |
var check = isWordChar(startChar) ? isWordChar |
| 2761 |
: /\s/.test(startChar) ? function(ch) {return /\s/.test(ch);} |
| 2762 |
: function(ch) {return !/\s/.test(ch) && !isWordChar(ch);}; |
| 2763 |
while (start > 0 && check(line.charAt(start - 1))) --start; |
| 2764 |
while (end < line.length && check(line.charAt(end))) ++end; |
| 2765 |
} |
| 2766 |
return {from: Pos(pos.line, start), to: Pos(pos.line, end)}; |
| 2767 |
} |
| 2768 |
|
| 2769 |
function selectLine(cm, line) { |
| 2770 |
extendSelection(cm.doc, Pos(line, 0), clipPos(cm.doc, Pos(line + 1, 0))); |
| 2771 |
} |
| 2772 |
|
| 2773 |
// PROTOTYPE |
| 2774 |
|
| 2775 |
// The publicly visible API. Note that operation(null, f) means |
| 2776 |
// 'wrap f in an operation, performed on its `this` parameter' |
| 2777 |
|
| 2778 |
CodeMirror.prototype = { |
| 2779 |
constructor: CodeMirror, |
| 2780 |
focus: function(){window.focus(); focusInput(this); onFocus(this); fastPoll(this);}, |
| 2781 |
|
| 2782 |
setOption: function(option, value) { |
| 2783 |
var options = this.options, old = options[option]; |
| 2784 |
if (options[option] == value && option != "mode") return; |
| 2785 |
options[option] = value; |
| 2786 |
if (optionHandlers.hasOwnProperty(option)) |
| 2787 |
operation(this, optionHandlers[option])(this, value, old); |
| 2788 |
}, |
| 2789 |
|
| 2790 |
getOption: function(option) {return this.options[option];}, |
| 2791 |
getDoc: function() {return this.doc;}, |
| 2792 |
|
| 2793 |
addKeyMap: function(map, bottom) { |
| 2794 |
this.state.keyMaps[bottom ? "push" : "unshift"](map); |
| 2795 |
}, |
| 2796 |
removeKeyMap: function(map) { |
| 2797 |
var maps = this.state.keyMaps; |
| 2798 |
for (var i = 0; i < maps.length; ++i) |
| 2799 |
if ((typeof map == "string" ? maps[i].name : maps[i]) == map) { |
| 2800 |
maps.splice(i, 1); |
| 2801 |
return true; |
| 2802 |
} |
| 2803 |
}, |
| 2804 |
|
| 2805 |
addOverlay: operation(null, function(spec, options) { |
| 2806 |
var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec); |
| 2807 |
if (mode.startState) throw new Error("Overlays may not be stateful."); |
| 2808 |
this.state.overlays.push({mode: mode, modeSpec: spec, opaque: options && options.opaque}); |
| 2809 |
this.state.modeGen++; |
| 2810 |
regChange(this); |
| 2811 |
}), |
| 2812 |
removeOverlay: operation(null, function(spec) { |
| 2813 |
var overlays = this.state.overlays; |
| 2814 |
for (var i = 0; i < overlays.length; ++i) { |
| 2815 |
var cur = overlays[i].modeSpec; |
| 2816 |
if (cur == spec || typeof spec == "string" && cur.name == spec) { |
| 2817 |
overlays.splice(i, 1); |
| 2818 |
this.state.modeGen++; |
| 2819 |
regChange(this); |
| 2820 |
return; |
| 2821 |
} |
| 2822 |
} |
| 2823 |
}), |
| 2824 |
|
| 2825 |
indentLine: operation(null, function(n, dir, aggressive) { |
| 2826 |
if (typeof dir != "string" && typeof dir != "number") { |
| 2827 |
if (dir == null) dir = this.options.smartIndent ? "smart" : "prev"; |
| 2828 |
else dir = dir ? "add" : "subtract"; |
| 2829 |
} |
| 2830 |
if (isLine(this.doc, n)) indentLine(this, n, dir, aggressive); |
| 2831 |
}), |
| 2832 |
indentSelection: operation(null, function(how) { |
| 2833 |
var sel = this.doc.sel; |
| 2834 |
if (posEq(sel.from, sel.to)) return indentLine(this, sel.from.line, how); |
| 2835 |
var e = sel.to.line - (sel.to.ch ? 0 : 1); |
| 2836 |
for (var i = sel.from.line; i <= e; ++i) indentLine(this, i, how); |
| 2837 |
}), |
| 2838 |
|
| 2839 |
// Fetch the parser token for a given character. Useful for hacks |
| 2840 |
// that want to inspect the mode state (say, for completion). |
| 2841 |
getTokenAt: function(pos, precise) { |
| 2842 |
var doc = this.doc; |
| 2843 |
pos = clipPos(doc, pos); |
| 2844 |
var state = getStateBefore(this, pos.line, precise), mode = this.doc.mode; |
| 2845 |
var line = getLine(doc, pos.line); |
| 2846 |
var stream = new StringStream(line.text, this.options.tabSize); |
| 2847 |
while (stream.pos < pos.ch && !stream.eol()) { |
| 2848 |
stream.start = stream.pos; |
| 2849 |
var style = mode.token(stream, state); |
| 2850 |
} |
| 2851 |
return {start: stream.start, |
| 2852 |
end: stream.pos, |
| 2853 |
string: stream.current(), |
| 2854 |
className: style || null, // Deprecated, use 'type' instead |
| 2855 |
type: style || null, |
| 2856 |
state: state}; |
| 2857 |
}, |
| 2858 |
|
| 2859 |
getTokenTypeAt: function(pos) { |
| 2860 |
pos = clipPos(this.doc, pos); |
| 2861 |
var styles = getLineStyles(this, getLine(this.doc, pos.line)); |
| 2862 |
var before = 0, after = (styles.length - 1) / 2, ch = pos.ch; |
| 2863 |
for (;;) { |
| 2864 |
var mid = (before + after) >> 1; |
| 2865 |
if ((mid ? styles[mid * 2 - 1] : 0) >= ch) after = mid; |
| 2866 |
else if (styles[mid * 2 + 1] < ch) before = mid + 1; |
| 2867 |
else return styles[mid * 2 + 2]; |
| 2868 |
} |
| 2869 |
}, |
| 2870 |
|
| 2871 |
getStateAfter: function(line, precise) { |
| 2872 |
var doc = this.doc; |
| 2873 |
line = clipLine(doc, line == null ? doc.first + doc.size - 1: line); |
| 2874 |
return getStateBefore(this, line + 1, precise); |
| 2875 |
}, |
| 2876 |
|
| 2877 |
cursorCoords: function(start, mode) { |
| 2878 |
var pos, sel = this.doc.sel; |
| 2879 |
if (start == null) pos = sel.head; |
| 2880 |
else if (typeof start == "object") pos = clipPos(this.doc, start); |
| 2881 |
else pos = start ? sel.from : sel.to; |
| 2882 |
return cursorCoords(this, pos, mode || "page"); |
| 2883 |
}, |
| 2884 |
|
| 2885 |
charCoords: function(pos, mode) { |
| 2886 |
return charCoords(this, clipPos(this.doc, pos), mode || "page"); |
| 2887 |
}, |
| 2888 |
|
| 2889 |
coordsChar: function(coords, mode) { |
| 2890 |
coords = fromCoordSystem(this, coords, mode || "page"); |
| 2891 |
return coordsChar(this, coords.left, coords.top); |
| 2892 |
}, |
| 2893 |
|
| 2894 |
lineAtHeight: function(height, mode) { |
| 2895 |
height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top; |
| 2896 |
return lineAtHeight(this.doc, height + this.display.viewOffset); |
| 2897 |
}, |
| 2898 |
heightAtLine: function(line, mode) { |
| 2899 |
var end = false, last = this.doc.first + this.doc.size - 1; |
| 2900 |
if (line < this.doc.first) line = this.doc.first; |
| 2901 |
else if (line > last) { line = last; end = true; } |
| 2902 |
var lineObj = getLine(this.doc, line); |
| 2903 |
return intoCoordSystem(this, getLine(this.doc, line), {top: 0, left: 0}, mode || "page").top + |
| 2904 |
(end ? lineObj.height : 0); |
| 2905 |
}, |
| 2906 |
|
| 2907 |
defaultTextHeight: function() { return textHeight(this.display); }, |
| 2908 |
defaultCharWidth: function() { return charWidth(this.display); }, |
| 2909 |
|
| 2910 |
setGutterMarker: operation(null, function(line, gutterID, value) { |
| 2911 |
return changeLine(this, line, function(line) { |
| 2912 |
var markers = line.gutterMarkers || (line.gutterMarkers = {}); |
| 2913 |
markers[gutterID] = value; |
| 2914 |
if (!value && isEmpty(markers)) line.gutterMarkers = null; |
| 2915 |
return true; |
| 2916 |
}); |
| 2917 |
}), |
| 2918 |
|
| 2919 |
clearGutter: operation(null, function(gutterID) { |
| 2920 |
var cm = this, doc = cm.doc, i = doc.first; |
| 2921 |
doc.iter(function(line) { |
| 2922 |
if (line.gutterMarkers && line.gutterMarkers[gutterID]) { |
| 2923 |
line.gutterMarkers[gutterID] = null; |
| 2924 |
regChange(cm, i, i + 1); |
| 2925 |
if (isEmpty(line.gutterMarkers)) line.gutterMarkers = null; |
| 2926 |
} |
| 2927 |
++i; |
| 2928 |
}); |
| 2929 |
}), |
| 2930 |
|
| 2931 |
addLineClass: operation(null, function(handle, where, cls) { |
| 2932 |
return changeLine(this, handle, function(line) { |
| 2933 |
var prop = where == "text" ? "textClass" : where == "background" ? "bgClass" : "wrapClass"; |
| 2934 |
if (!line[prop]) line[prop] = cls; |
| 2935 |
else if (new RegExp("(?:^|\\s)" + cls + "(?:$|\\s)").test(line[prop])) return false; |
| 2936 |
else line[prop] += " " + cls; |
| 2937 |
return true; |
| 2938 |
}); |
| 2939 |
}), |
| 2940 |
|
| 2941 |
removeLineClass: operation(null, function(handle, where, cls) { |
| 2942 |
return changeLine(this, handle, function(line) { |
| 2943 |
var prop = where == "text" ? "textClass" : where == "background" ? "bgClass" : "wrapClass"; |
| 2944 |
var cur = line[prop]; |
| 2945 |
if (!cur) return false; |
| 2946 |
else if (cls == null) line[prop] = null; |
| 2947 |
else { |
| 2948 |
var found = cur.match(new RegExp("(?:^|\\s+)" + cls + "(?:$|\\s+)")); |
| 2949 |
if (!found) return false; |
| 2950 |
var end = found.index + found[0].length; |
| 2951 |
line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null; |
| 2952 |
} |
| 2953 |
return true; |
| 2954 |
}); |
| 2955 |
}), |
| 2956 |
|
| 2957 |
addLineWidget: operation(null, function(handle, node, options) { |
| 2958 |
return addLineWidget(this, handle, node, options); |
| 2959 |
}), |
| 2960 |
|
| 2961 |
removeLineWidget: function(widget) { widget.clear(); }, |
| 2962 |
|
| 2963 |
lineInfo: function(line) { |
| 2964 |
if (typeof line == "number") { |
| 2965 |
if (!isLine(this.doc, line)) return null; |
| 2966 |
var n = line; |
| 2967 |
line = getLine(this.doc, line); |
| 2968 |
if (!line) return null; |
| 2969 |
} else { |
| 2970 |
var n = lineNo(line); |
| 2971 |
if (n == null) return null; |
| 2972 |
} |
| 2973 |
return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers, |
| 2974 |
textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass, |
| 2975 |
widgets: line.widgets}; |
| 2976 |
}, |
| 2977 |
|
| 2978 |
getViewport: function() { return {from: this.display.showingFrom, to: this.display.showingTo};}, |
| 2979 |
|
| 2980 |
addWidget: function(pos, node, scroll, vert, horiz) { |
| 2981 |
var display = this.display; |
| 2982 |
pos = cursorCoords(this, clipPos(this.doc, pos)); |
| 2983 |
var top = pos.bottom, left = pos.left; |
| 2984 |
node.style.position = "absolute"; |
| 2985 |
display.sizer.appendChild(node); |
| 2986 |
if (vert == "over") { |
| 2987 |
top = pos.top; |
| 2988 |
} else if (vert == "above" || vert == "near") { |
| 2989 |
var vspace = Math.max(display.wrapper.clientHeight, this.doc.height), |
| 2990 |
hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth); |
| 2991 |
// Default to positioning above (if specified and possible); otherwise default to positioning below |
| 2992 |
if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight) |
| 2993 |
top = pos.top - node.offsetHeight; |
| 2994 |
else if (pos.bottom + node.offsetHeight <= vspace) |
| 2995 |
top = pos.bottom; |
| 2996 |
if (left + node.offsetWidth > hspace) |
| 2997 |
left = hspace - node.offsetWidth; |
| 2998 |
} |
| 2999 |
node.style.top = top + "px"; |
| 3000 |
node.style.left = node.style.right = ""; |
| 3001 |
if (horiz == "right") { |
| 3002 |
left = display.sizer.clientWidth - node.offsetWidth; |
| 3003 |
node.style.right = "0px"; |
| 3004 |
} else { |
| 3005 |
if (horiz == "left") left = 0; |
| 3006 |
else if (horiz == "middle") left = (display.sizer.clientWidth - node.offsetWidth) / 2; |
| 3007 |
node.style.left = left + "px"; |
| 3008 |
} |
| 3009 |
if (scroll) |
| 3010 |
scrollIntoView(this, left, top, left + node.offsetWidth, top + node.offsetHeight); |
| 3011 |
}, |
| 3012 |
|
| 3013 |
triggerOnKeyDown: operation(null, onKeyDown), |
| 3014 |
|
| 3015 |
execCommand: function(cmd) {return commands[cmd](this);}, |
| 3016 |
|
| 3017 |
findPosH: function(from, amount, unit, visually) { |
| 3018 |
var dir = 1; |
| 3019 |
if (amount < 0) { dir = -1; amount = -amount; } |
| 3020 |
for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) { |
| 3021 |
cur = findPosH(this.doc, cur, dir, unit, visually); |
| 3022 |
if (cur.hitSide) break; |
| 3023 |
} |
| 3024 |
return cur; |
| 3025 |
}, |
| 3026 |
|
| 3027 |
moveH: operation(null, function(dir, unit) { |
| 3028 |
var sel = this.doc.sel, pos; |
| 3029 |
if (sel.shift || sel.extend || posEq(sel.from, sel.to)) |
| 3030 |
pos = findPosH(this.doc, sel.head, dir, unit, this.options.rtlMoveVisually); |
| 3031 |
else |
| 3032 |
pos = dir < 0 ? sel.from : sel.to; |
| 3033 |
extendSelection(this.doc, pos, pos, dir); |
| 3034 |
}), |
| 3035 |
|
| 3036 |
deleteH: operation(null, function(dir, unit) { |
| 3037 |
var sel = this.doc.sel; |
| 3038 |
if (!posEq(sel.from, sel.to)) replaceRange(this.doc, "", sel.from, sel.to, "+delete"); |
| 3039 |
else replaceRange(this.doc, "", sel.from, findPosH(this.doc, sel.head, dir, unit, false), "+delete"); |
| 3040 |
this.curOp.userSelChange = true; |
| 3041 |
}), |
| 3042 |
|
| 3043 |
findPosV: function(from, amount, unit, goalColumn) { |
| 3044 |
var dir = 1, x = goalColumn; |
| 3045 |
if (amount < 0) { dir = -1; amount = -amount; } |
| 3046 |
for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) { |
| 3047 |
var coords = cursorCoords(this, cur, "div"); |
| 3048 |
if (x == null) x = coords.left; |
| 3049 |
else coords.left = x; |
| 3050 |
cur = findPosV(this, coords, dir, unit); |
| 3051 |
if (cur.hitSide) break; |
| 3052 |
} |
| 3053 |
return cur; |
| 3054 |
}, |
| 3055 |
|
| 3056 |
moveV: operation(null, function(dir, unit) { |
| 3057 |
var sel = this.doc.sel; |
| 3058 |
var pos = cursorCoords(this, sel.head, "div"); |
| 3059 |
if (sel.goalColumn != null) pos.left = sel.goalColumn; |
| 3060 |
var target = findPosV(this, pos, dir, unit); |
| 3061 |
|
| 3062 |
if (unit == "page") addToScrollPos(this, 0, charCoords(this, target, "div").top - pos.top); |
| 3063 |
extendSelection(this.doc, target, target, dir); |
| 3064 |
sel.goalColumn = pos.left; |
| 3065 |
}), |
| 3066 |
|
| 3067 |
toggleOverwrite: function(value) { |
| 3068 |
if (value != null && value == this.state.overwrite) return; |
| 3069 |
if (this.state.overwrite = !this.state.overwrite) |
| 3070 |
this.display.cursor.className += " CodeMirror-overwrite"; |
| 3071 |
else |
| 3072 |
this.display.cursor.className = this.display.cursor.className.replace(" CodeMirror-overwrite", ""); |
| 3073 |
}, |
| 3074 |
hasFocus: function() { return this.state.focused; }, |
| 3075 |
|
| 3076 |
scrollTo: operation(null, function(x, y) { |
| 3077 |
updateScrollPos(this, x, y); |
| 3078 |
}), |
| 3079 |
getScrollInfo: function() { |
| 3080 |
var scroller = this.display.scroller, co = scrollerCutOff; |
| 3081 |
return {left: scroller.scrollLeft, top: scroller.scrollTop, |
| 3082 |
height: scroller.scrollHeight - co, width: scroller.scrollWidth - co, |
| 3083 |
clientHeight: scroller.clientHeight - co, clientWidth: scroller.clientWidth - co}; |
| 3084 |
}, |
| 3085 |
|
| 3086 |
scrollIntoView: operation(null, function(pos, margin) { |
| 3087 |
if (typeof pos == "number") pos = Pos(pos, 0); |
| 3088 |
if (!margin) margin = 0; |
| 3089 |
var coords = pos; |
| 3090 |
|
| 3091 |
if (!pos || pos.line != null) { |
| 3092 |
this.curOp.scrollToPos = pos ? clipPos(this.doc, pos) : this.doc.sel.head; |
| 3093 |
this.curOp.scrollToPosMargin = margin; |
| 3094 |
coords = cursorCoords(this, this.curOp.scrollToPos); |
| 3095 |
} |
| 3096 |
var sPos = calculateScrollPos(this, coords.left, coords.top - margin, coords.right, coords.bottom + margin); |
| 3097 |
updateScrollPos(this, sPos.scrollLeft, sPos.scrollTop); |
| 3098 |
}), |
| 3099 |
|
| 3100 |
setSize: function(width, height) { |
| 3101 |
function interpret(val) { |
| 3102 |
return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val; |
| 3103 |
} |
| 3104 |
if (width != null) this.display.wrapper.style.width = interpret(width); |
| 3105 |
if (height != null) this.display.wrapper.style.height = interpret(height); |
| 3106 |
this.refresh(); |
| 3107 |
}, |
| 3108 |
|
| 3109 |
on: function(type, f) {on(this, type, f);}, |
| 3110 |
off: function(type, f) {off(this, type, f);}, |
| 3111 |
|
| 3112 |
operation: function(f){return runInOp(this, f);}, |
| 3113 |
|
| 3114 |
refresh: operation(null, function() { |
| 3115 |
clearCaches(this); |
| 3116 |
updateScrollPos(this, this.doc.scrollLeft, this.doc.scrollTop); |
| 3117 |
regChange(this); |
| 3118 |
}), |
| 3119 |
|
| 3120 |
swapDoc: operation(null, function(doc) { |
| 3121 |
var old = this.doc; |
| 3122 |
old.cm = null; |
| 3123 |
attachDoc(this, doc); |
| 3124 |
clearCaches(this); |
| 3125 |
resetInput(this, true); |
| 3126 |
updateScrollPos(this, doc.scrollLeft, doc.scrollTop); |
| 3127 |
return old; |
| 3128 |
}), |
| 3129 |
|
| 3130 |
getInputField: function(){return this.display.input;}, |
| 3131 |
getWrapperElement: function(){return this.display.wrapper;}, |
| 3132 |
getScrollerElement: function(){return this.display.scroller;}, |
| 3133 |
getGutterElement: function(){return this.display.gutters;} |
| 3134 |
}; |
| 3135 |
|
| 3136 |
// OPTION DEFAULTS |
| 3137 |
|
| 3138 |
var optionHandlers = CodeMirror.optionHandlers = {}; |
| 3139 |
|
| 3140 |
// The default configuration options. |
| 3141 |
var defaults = CodeMirror.defaults = {}; |
| 3142 |
|
| 3143 |
function option(name, deflt, handle, notOnInit) { |
| 3144 |
CodeMirror.defaults[name] = deflt; |
| 3145 |
if (handle) optionHandlers[name] = |
| 3146 |
notOnInit ? function(cm, val, old) {if (old != Init) handle(cm, val, old);} : handle; |
| 3147 |
} |
| 3148 |
|
| 3149 |
var Init = CodeMirror.Init = {toString: function(){return "CodeMirror.Init";}}; |
| 3150 |
|
| 3151 |
// These two are, on init, called from the constructor because they |
| 3152 |
// have to be initialized before the editor can start at all. |
| 3153 |
option("value", "", function(cm, val) { |
| 3154 |
cm.setValue(val); |
| 3155 |
}, true); |
| 3156 |
option("mode", null, function(cm, val) { |
| 3157 |
cm.doc.modeOption = val; |
| 3158 |
loadMode(cm); |
| 3159 |
}, true); |
| 3160 |
|
| 3161 |
option("indentUnit", 2, loadMode, true); |
| 3162 |
option("indentWithTabs", false); |
| 3163 |
option("smartIndent", true); |
| 3164 |
option("tabSize", 4, function(cm) { |
| 3165 |
loadMode(cm); |
| 3166 |
clearCaches(cm); |
| 3167 |
regChange(cm); |
| 3168 |
}, true); |
| 3169 |
option("electricChars", true); |
| 3170 |
option("rtlMoveVisually", !windows); |
| 3171 |
|
| 3172 |
option("theme", "default", function(cm) { |
| 3173 |
themeChanged(cm); |
| 3174 |
guttersChanged(cm); |
| 3175 |
}, true); |
| 3176 |
option("keyMap", "default", keyMapChanged); |
| 3177 |
option("extraKeys", null); |
| 3178 |
|
| 3179 |
option("onKeyEvent", null); |
| 3180 |
option("onDragEvent", null); |
| 3181 |
|
| 3182 |
option("lineWrapping", false, wrappingChanged, true); |
| 3183 |
option("gutters", [], function(cm) { |
| 3184 |
setGuttersForLineNumbers(cm.options); |
| 3185 |
guttersChanged(cm); |
| 3186 |
}, true); |
| 3187 |
option("fixedGutter", true, function(cm, val) { |
| 3188 |
cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0"; |
| 3189 |
cm.refresh(); |
| 3190 |
}, true); |
| 3191 |
option("coverGutterNextToScrollbar", false, updateScrollbars, true); |
| 3192 |
option("lineNumbers", false, function(cm) { |
| 3193 |
setGuttersForLineNumbers(cm.options); |
| 3194 |
guttersChanged(cm); |
| 3195 |
}, true); |
| 3196 |
option("firstLineNumber", 1, guttersChanged, true); |
| 3197 |
option("lineNumberFormatter", function(integer) {return integer;}, guttersChanged, true); |
| 3198 |
option("showCursorWhenSelecting", false, updateSelection, true); |
| 3199 |
|
| 3200 |
option("readOnly", false, function(cm, val) { |
| 3201 |
if (val == "nocursor") {onBlur(cm); cm.display.input.blur();} |
| 3202 |
else if (!val) resetInput(cm, true); |
| 3203 |
}); |
| 3204 |
option("dragDrop", true); |
| 3205 |
|
| 3206 |
option("cursorBlinkRate", 530); |
| 3207 |
option("cursorScrollMargin", 0); |
| 3208 |
option("cursorHeight", 1); |
| 3209 |
option("workTime", 100); |
| 3210 |
option("workDelay", 100); |
| 3211 |
option("flattenSpans", true); |
| 3212 |
option("pollInterval", 100); |
| 3213 |
option("undoDepth", 40, function(cm, val){cm.doc.history.undoDepth = val;}); |
| 3214 |
option("historyEventDelay", 500); |
| 3215 |
option("viewportMargin", 10, function(cm){cm.refresh();}, true); |
| 3216 |
option("maxHighlightLength", 10000, function(cm){loadMode(cm); cm.refresh();}, true); |
| 3217 |
option("moveInputWithCursor", true, function(cm, val) { |
| 3218 |
if (!val) cm.display.inputDiv.style.top = cm.display.inputDiv.style.left = 0; |
| 3219 |
}); |
| 3220 |
|
| 3221 |
option("tabindex", null, function(cm, val) { |
| 3222 |
cm.display.input.tabIndex = val || ""; |
| 3223 |
}); |
| 3224 |
option("autofocus", null); |
| 3225 |
|
| 3226 |
// MODE DEFINITION AND QUERYING |
| 3227 |
|
| 3228 |
// Known modes, by name and by MIME |
| 3229 |
var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {}; |
| 3230 |
|
| 3231 |
CodeMirror.defineMode = function(name, mode) { |
| 3232 |
if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name; |
| 3233 |
if (arguments.length > 2) { |
| 3234 |
mode.dependencies = []; |
| 3235 |
for (var i = 2; i < arguments.length; ++i) mode.dependencies.push(arguments[i]); |
| 3236 |
} |
| 3237 |
modes[name] = mode; |
| 3238 |
}; |
| 3239 |
|
| 3240 |
CodeMirror.defineMIME = function(mime, spec) { |
| 3241 |
mimeModes[mime] = spec; |
| 3242 |
}; |
| 3243 |
|
| 3244 |
CodeMirror.resolveMode = function(spec) { |
| 3245 |
if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) { |
| 3246 |
spec = mimeModes[spec]; |
| 3247 |
} else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) { |
| 3248 |
var found = mimeModes[spec.name]; |
| 3249 |
spec = createObj(found, spec); |
| 3250 |
spec.name = found.name; |
| 3251 |
} else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) { |
| 3252 |
return CodeMirror.resolveMode("application/xml"); |
| 3253 |
} |
| 3254 |
if (typeof spec == "string") return {name: spec}; |
| 3255 |
else return spec || {name: "null"}; |
| 3256 |
}; |
| 3257 |
|
| 3258 |
CodeMirror.getMode = function(options, spec) { |
| 3259 |
spec = CodeMirror.resolveMode(spec); |
| 3260 |
var mfactory = modes[spec.name]; |
| 3261 |
if (!mfactory) return CodeMirror.getMode(options, "text/plain"); |
| 3262 |
var modeObj = mfactory(options, spec); |
| 3263 |
if (modeExtensions.hasOwnProperty(spec.name)) { |
| 3264 |
var exts = modeExtensions[spec.name]; |
| 3265 |
for (var prop in exts) { |
| 3266 |
if (!exts.hasOwnProperty(prop)) continue; |
| 3267 |
if (modeObj.hasOwnProperty(prop)) modeObj["_" + prop] = modeObj[prop]; |
| 3268 |
modeObj[prop] = exts[prop]; |
| 3269 |
} |
| 3270 |
} |
| 3271 |
modeObj.name = spec.name; |
| 3272 |
return modeObj; |
| 3273 |
}; |
| 3274 |
|
| 3275 |
CodeMirror.defineMode("null", function() { |
| 3276 |
return {token: function(stream) {stream.skipToEnd();}}; |
| 3277 |
}); |
| 3278 |
CodeMirror.defineMIME("text/plain", "null"); |
| 3279 |
|
| 3280 |
var modeExtensions = CodeMirror.modeExtensions = {}; |
| 3281 |
CodeMirror.extendMode = function(mode, properties) { |
| 3282 |
var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {}); |
| 3283 |
copyObj(properties, exts); |
| 3284 |
}; |
| 3285 |
|
| 3286 |
// EXTENSIONS |
| 3287 |
|
| 3288 |
CodeMirror.defineExtension = function(name, func) { |
| 3289 |
CodeMirror.prototype[name] = func; |
| 3290 |
}; |
| 3291 |
CodeMirror.defineDocExtension = function(name, func) { |
| 3292 |
Doc.prototype[name] = func; |
| 3293 |
}; |
| 3294 |
CodeMirror.defineOption = option; |
| 3295 |
|
| 3296 |
var initHooks = []; |
| 3297 |
CodeMirror.defineInitHook = function(f) {initHooks.push(f);}; |
| 3298 |
|
| 3299 |
// MODE STATE HANDLING |
| 3300 |
|
| 3301 |
// Utility functions for working with state. Exported because modes |
| 3302 |
// sometimes need to do this. |
| 3303 |
function copyState(mode, state) { |
| 3304 |
if (state === true) return state; |
| 3305 |
if (mode.copyState) return mode.copyState(state); |
| 3306 |
var nstate = {}; |
| 3307 |
for (var n in state) { |
| 3308 |
var val = state[n]; |
| 3309 |
if (val instanceof Array) val = val.concat([]); |
| 3310 |
nstate[n] = val; |
| 3311 |
} |
| 3312 |
return nstate; |
| 3313 |
} |
| 3314 |
CodeMirror.copyState = copyState; |
| 3315 |
|
| 3316 |
function startState(mode, a1, a2) { |
| 3317 |
return mode.startState ? mode.startState(a1, a2) : true; |
| 3318 |
} |
| 3319 |
CodeMirror.startState = startState; |
| 3320 |
|
| 3321 |
CodeMirror.innerMode = function(mode, state) { |
| 3322 |
while (mode.innerMode) { |
| 3323 |
var info = mode.innerMode(state); |
| 3324 |
state = info.state; |
| 3325 |
mode = info.mode; |
| 3326 |
} |
| 3327 |
return info || {mode: mode, state: state}; |
| 3328 |
}; |
| 3329 |
|
| 3330 |
// STANDARD COMMANDS |
| 3331 |
|
| 3332 |
var commands = CodeMirror.commands = { |
| 3333 |
selectAll: function(cm) {cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()));}, |
| 3334 |
killLine: function(cm) { |
| 3335 |
var from = cm.getCursor(true), to = cm.getCursor(false), sel = !posEq(from, to); |
| 3336 |
if (!sel && cm.getLine(from.line).length == from.ch) |
| 3337 |
cm.replaceRange("", from, Pos(from.line + 1, 0), "+delete"); |
| 3338 |
else cm.replaceRange("", from, sel ? to : Pos(from.line), "+delete"); |
| 3339 |
}, |
| 3340 |
deleteLine: function(cm) { |
| 3341 |
var l = cm.getCursor().line; |
| 3342 |
cm.replaceRange("", Pos(l, 0), Pos(l), "+delete"); |
| 3343 |
}, |
| 3344 |
delLineLeft: function(cm) { |
| 3345 |
var cur = cm.getCursor(); |
| 3346 |
cm.replaceRange("", Pos(cur.line, 0), cur, "+delete"); |
| 3347 |
}, |
| 3348 |
undo: function(cm) {cm.undo();}, |
| 3349 |
redo: function(cm) {cm.redo();}, |
| 3350 |
goDocStart: function(cm) {cm.extendSelection(Pos(cm.firstLine(), 0));}, |
| 3351 |
goDocEnd: function(cm) {cm.extendSelection(Pos(cm.lastLine()));}, |
| 3352 |
goLineStart: function(cm) { |
| 3353 |
cm.extendSelection(lineStart(cm, cm.getCursor().line)); |
| 3354 |
}, |
| 3355 |
goLineStartSmart: function(cm) { |
| 3356 |
var cur = cm.getCursor(), start = lineStart(cm, cur.line); |
| 3357 |
var line = cm.getLineHandle(start.line); |
| 3358 |
var order = getOrder(line); |
| 3359 |
if (!order || order[0].level == 0) { |
| 3360 |
var firstNonWS = Math.max(0, line.text.search(/\S/)); |
| 3361 |
var inWS = cur.line == start.line && cur.ch <= firstNonWS && cur.ch; |
| 3362 |
cm.extendSelection(Pos(start.line, inWS ? 0 : firstNonWS)); |
| 3363 |
} else cm.extendSelection(start); |
| 3364 |
}, |
| 3365 |
goLineEnd: function(cm) { |
| 3366 |
cm.extendSelection(lineEnd(cm, cm.getCursor().line)); |
| 3367 |
}, |
| 3368 |
goLineRight: function(cm) { |
| 3369 |
var top = cm.charCoords(cm.getCursor(), "div").top + 5; |
| 3370 |
cm.extendSelection(cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div")); |
| 3371 |
}, |
| 3372 |
goLineLeft: function(cm) { |
| 3373 |
var top = cm.charCoords(cm.getCursor(), "div").top + 5; |
| 3374 |
cm.extendSelection(cm.coordsChar({left: 0, top: top}, "div")); |
| 3375 |
}, |
| 3376 |
goLineUp: function(cm) {cm.moveV(-1, "line");}, |
| 3377 |
goLineDown: function(cm) {cm.moveV(1, "line");}, |
| 3378 |
goPageUp: function(cm) {cm.moveV(-1, "page");}, |
| 3379 |
goPageDown: function(cm) {cm.moveV(1, "page");}, |
| 3380 |
goCharLeft: function(cm) {cm.moveH(-1, "char");}, |
| 3381 |
goCharRight: function(cm) {cm.moveH(1, "char");}, |
| 3382 |
goColumnLeft: function(cm) {cm.moveH(-1, "column");}, |
| 3383 |
goColumnRight: function(cm) {cm.moveH(1, "column");}, |
| 3384 |
goWordLeft: function(cm) {cm.moveH(-1, "word");}, |
| 3385 |
goGroupRight: function(cm) {cm.moveH(1, "group");}, |
| 3386 |
goGroupLeft: function(cm) {cm.moveH(-1, "group");}, |
| 3387 |
goWordRight: function(cm) {cm.moveH(1, "word");}, |
| 3388 |
delCharBefore: function(cm) {cm.deleteH(-1, "char");}, |
| 3389 |
delCharAfter: function(cm) {cm.deleteH(1, "char");}, |
| 3390 |
delWordBefore: function(cm) {cm.deleteH(-1, "word");}, |
| 3391 |
delWordAfter: function(cm) {cm.deleteH(1, "word");}, |
| 3392 |
delGroupBefore: function(cm) {cm.deleteH(-1, "group");}, |
| 3393 |
delGroupAfter: function(cm) {cm.deleteH(1, "group");}, |
| 3394 |
indentAuto: function(cm) {cm.indentSelection("smart");}, |
| 3395 |
indentMore: function(cm) {cm.indentSelection("add");}, |
| 3396 |
indentLess: function(cm) {cm.indentSelection("subtract");}, |
| 3397 |
insertTab: function(cm) {cm.replaceSelection("\t", "end", "+input");}, |
| 3398 |
defaultTab: function(cm) { |
| 3399 |
if (cm.somethingSelected()) cm.indentSelection("add"); |
| 3400 |
else cm.replaceSelection("\t", "end", "+input"); |
| 3401 |
}, |
| 3402 |
transposeChars: function(cm) { |
| 3403 |
var cur = cm.getCursor(), line = cm.getLine(cur.line); |
| 3404 |
if (cur.ch > 0 && cur.ch < line.length - 1) |
| 3405 |
cm.replaceRange(line.charAt(cur.ch) + line.charAt(cur.ch - 1), |
| 3406 |
Pos(cur.line, cur.ch - 1), Pos(cur.line, cur.ch + 1)); |
| 3407 |
}, |
| 3408 |
newlineAndIndent: function(cm) { |
| 3409 |
operation(cm, function() { |
| 3410 |
cm.replaceSelection("\n", "end", "+input"); |
| 3411 |
cm.indentLine(cm.getCursor().line, null, true); |
| 3412 |
})(); |
| 3413 |
}, |
| 3414 |
toggleOverwrite: function(cm) {cm.toggleOverwrite();} |
| 3415 |
}; |
| 3416 |
|
| 3417 |
// STANDARD KEYMAPS |
| 3418 |
|
| 3419 |
var keyMap = CodeMirror.keyMap = {}; |
| 3420 |
keyMap.basic = { |
| 3421 |
"Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown", |
| 3422 |
"End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown", |
| 3423 |
"Delete": "delCharAfter", "Backspace": "delCharBefore", "Tab": "defaultTab", "Shift-Tab": "indentAuto", |
| 3424 |
"Enter": "newlineAndIndent", "Insert": "toggleOverwrite" |
| 3425 |
}; |
| 3426 |
// Note that the save and find-related commands aren't defined by |
| 3427 |
// default. Unknown commands are simply ignored. |
| 3428 |
keyMap.pcDefault = { |
| 3429 |
"Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo", |
| 3430 |
"Ctrl-Home": "goDocStart", "Alt-Up": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Down": "goDocEnd", |
| 3431 |
"Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd", |
| 3432 |
"Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find", |
| 3433 |
"Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll", |
| 3434 |
"Ctrl-[": "indentLess", "Ctrl-]": "indentMore", |
| 3435 |
fallthrough: "basic" |
| 3436 |
}; |
| 3437 |
keyMap.macDefault = { |
| 3438 |
"Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo", |
| 3439 |
"Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft", |
| 3440 |
"Alt-Right": "goGroupRight", "Cmd-Left": "goLineStart", "Cmd-Right": "goLineEnd", "Alt-Backspace": "delGroupBefore", |
| 3441 |
"Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find", |
| 3442 |
"Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll", |
| 3443 |
"Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delLineLeft", |
| 3444 |
fallthrough: ["basic", "emacsy"] |
| 3445 |
}; |
| 3446 |
keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault; |
| 3447 |
keyMap.emacsy = { |
| 3448 |
"Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown", |
| 3449 |
"Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd", |
| 3450 |
"Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore", |
| 3451 |
"Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars" |
| 3452 |
}; |
| 3453 |
|
| 3454 |
// KEYMAP DISPATCH |
| 3455 |
|
| 3456 |
function getKeyMap(val) { |
| 3457 |
if (typeof val == "string") return keyMap[val]; |
| 3458 |
else return val; |
| 3459 |
} |
| 3460 |
|
| 3461 |
function lookupKey(name, maps, handle) { |
| 3462 |
function lookup(map) { |
| 3463 |
map = getKeyMap(map); |
| 3464 |
var found = map[name]; |
| 3465 |
if (found === false) return "stop"; |
| 3466 |
if (found != null && handle(found)) return true; |
| 3467 |
if (map.nofallthrough) return "stop"; |
| 3468 |
|
| 3469 |
var fallthrough = map.fallthrough; |
| 3470 |
if (fallthrough == null) return false; |
| 3471 |
if (Object.prototype.toString.call(fallthrough) != "[object Array]") |
| 3472 |
return lookup(fallthrough); |
| 3473 |
for (var i = 0, e = fallthrough.length; i < e; ++i) { |
| 3474 |
var done = lookup(fallthrough[i]); |
| 3475 |
if (done) return done; |
| 3476 |
} |
| 3477 |
return false; |
| 3478 |
} |
| 3479 |
|
| 3480 |
for (var i = 0; i < maps.length; ++i) { |
| 3481 |
var done = lookup(maps[i]); |
| 3482 |
if (done) return done != "stop"; |
| 3483 |
} |
| 3484 |
} |
| 3485 |
function isModifierKey(event) { |
| 3486 |
var name = keyNames[event.keyCode]; |
| 3487 |
return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod"; |
| 3488 |
} |
| 3489 |
function keyName(event, noShift) { |
| 3490 |
if (opera && event.keyCode == 34 && event["char"]) return false; |
| 3491 |
var name = keyNames[event.keyCode]; |
| 3492 |
if (name == null || event.altGraphKey) return false; |
| 3493 |
if (event.altKey) name = "Alt-" + name; |
| 3494 |
if (flipCtrlCmd ? event.metaKey : event.ctrlKey) name = "Ctrl-" + name; |
| 3495 |
if (flipCtrlCmd ? event.ctrlKey : event.metaKey) name = "Cmd-" + name; |
| 3496 |
if (!noShift && event.shiftKey) name = "Shift-" + name; |
| 3497 |
return name; |
| 3498 |
} |
| 3499 |
CodeMirror.lookupKey = lookupKey; |
| 3500 |
CodeMirror.isModifierKey = isModifierKey; |
| 3501 |
CodeMirror.keyName = keyName; |
| 3502 |
|
| 3503 |
// FROMTEXTAREA |
| 3504 |
|
| 3505 |
CodeMirror.fromTextArea = function(textarea, options) { |
| 3506 |
if (!options) options = {}; |
| 3507 |
options.value = textarea.value; |
| 3508 |
if (!options.tabindex && textarea.tabindex) |
| 3509 |
options.tabindex = textarea.tabindex; |
| 3510 |
if (!options.placeholder && textarea.placeholder) |
| 3511 |
options.placeholder = textarea.placeholder; |
| 3512 |
// Set autofocus to true if this textarea is focused, or if it has |
| 3513 |
// autofocus and no other element is focused. |
| 3514 |
if (options.autofocus == null) { |
| 3515 |
var hasFocus = document.body; |
| 3516 |
// doc.activeElement occasionally throws on IE |
| 3517 |
try { hasFocus = document.activeElement; } catch(e) {} |
| 3518 |
options.autofocus = hasFocus == textarea || |
| 3519 |
textarea.getAttribute("autofocus") != null && hasFocus == document.body; |
| 3520 |
} |
| 3521 |
|
| 3522 |
function save() {textarea.value = cm.getValue();} |
| 3523 |
if (textarea.form) { |
| 3524 |
on(textarea.form, "submit", save); |
| 3525 |
// Deplorable hack to make the submit method do the right thing. |
| 3526 |
if (!options.leaveSubmitMethodAlone) { |
| 3527 |
var form = textarea.form, realSubmit = form.submit; |
| 3528 |
try { |
| 3529 |
var wrappedSubmit = form.submit = function() { |
| 3530 |
save(); |
| 3531 |
form.submit = realSubmit; |
| 3532 |
form.submit(); |
| 3533 |
form.submit = wrappedSubmit; |
| 3534 |
}; |
| 3535 |
} catch(e) {} |
| 3536 |
} |
| 3537 |
} |
| 3538 |
|
| 3539 |
textarea.style.display = "none"; |
| 3540 |
var cm = CodeMirror(function(node) { |
| 3541 |
textarea.parentNode.insertBefore(node, textarea.nextSibling); |
| 3542 |
}, options); |
| 3543 |
cm.save = save; |
| 3544 |
cm.getTextArea = function() { return textarea; }; |
| 3545 |
cm.toTextArea = function() { |
| 3546 |
save(); |
| 3547 |
textarea.parentNode.removeChild(cm.getWrapperElement()); |
| 3548 |
textarea.style.display = ""; |
| 3549 |
if (textarea.form) { |
| 3550 |
off(textarea.form, "submit", save); |
| 3551 |
if (typeof textarea.form.submit == "function") |
| 3552 |
textarea.form.submit = realSubmit; |
| 3553 |
} |
| 3554 |
}; |
| 3555 |
return cm; |
| 3556 |
}; |
| 3557 |
|
| 3558 |
// STRING STREAM |
| 3559 |
|
| 3560 |
// Fed to the mode parsers, provides helper functions to make |
| 3561 |
// parsers more succinct. |
| 3562 |
|
| 3563 |
// The character stream used by a mode's parser. |
| 3564 |
function StringStream(string, tabSize) { |
| 3565 |
this.pos = this.start = 0; |
| 3566 |
this.string = string; |
| 3567 |
this.tabSize = tabSize || 8; |
| 3568 |
this.lastColumnPos = this.lastColumnValue = 0; |
| 3569 |
} |
| 3570 |
|
| 3571 |
StringStream.prototype = { |
| 3572 |
eol: function() {return this.pos >= this.string.length;}, |
| 3573 |
sol: function() {return this.pos == 0;}, |
| 3574 |
peek: function() {return this.string.charAt(this.pos) || undefined;}, |
| 3575 |
next: function() { |
| 3576 |
if (this.pos < this.string.length) |
| 3577 |
return this.string.charAt(this.pos++); |
| 3578 |
}, |
| 3579 |
eat: function(match) { |
| 3580 |
var ch = this.string.charAt(this.pos); |
| 3581 |
if (typeof match == "string") var ok = ch == match; |
| 3582 |
else var ok = ch && (match.test ? match.test(ch) : match(ch)); |
| 3583 |
if (ok) {++this.pos; return ch;} |
| 3584 |
}, |
| 3585 |
eatWhile: function(match) { |
| 3586 |
var start = this.pos; |
| 3587 |
while (this.eat(match)){} |
| 3588 |
return this.pos > start; |
| 3589 |
}, |
| 3590 |
eatSpace: function() { |
| 3591 |
var start = this.pos; |
| 3592 |
while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos; |
| 3593 |
return this.pos > start; |
| 3594 |
}, |
| 3595 |
skipToEnd: function() {this.pos = this.string.length;}, |
| 3596 |
skipTo: function(ch) { |
| 3597 |
var found = this.string.indexOf(ch, this.pos); |
| 3598 |
if (found > -1) {this.pos = found; return true;} |
| 3599 |
}, |
| 3600 |
backUp: function(n) {this.pos -= n;}, |
| 3601 |
column: function() { |
| 3602 |
if (this.lastColumnPos < this.start) { |
| 3603 |
this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue); |
| 3604 |
this.lastColumnPos = this.start; |
| 3605 |
} |
| 3606 |
return this.lastColumnValue; |
| 3607 |
}, |
| 3608 |
indentation: function() {return countColumn(this.string, null, this.tabSize);}, |
| 3609 |
match: function(pattern, consume, caseInsensitive) { |
| 3610 |
if (typeof pattern == "string") { |
| 3611 |
var cased = function(str) {return caseInsensitive ? str.toLowerCase() : str;}; |
| 3612 |
var substr = this.string.substr(this.pos, pattern.length); |
| 3613 |
if (cased(substr) == cased(pattern)) { |
| 3614 |
if (consume !== false) this.pos += pattern.length; |
| 3615 |
return true; |
| 3616 |
} |
| 3617 |
} else { |
| 3618 |
var match = this.string.slice(this.pos).match(pattern); |
| 3619 |
if (match && match.index > 0) return null; |
| 3620 |
if (match && consume !== false) this.pos += match[0].length; |
| 3621 |
return match; |
| 3622 |
} |
| 3623 |
}, |
| 3624 |
current: function(){return this.string.slice(this.start, this.pos);} |
| 3625 |
}; |
| 3626 |
CodeMirror.StringStream = StringStream; |
| 3627 |
|
| 3628 |
// TEXTMARKERS |
| 3629 |
|
| 3630 |
function TextMarker(doc, type) { |
| 3631 |
this.lines = []; |
| 3632 |
this.type = type; |
| 3633 |
this.doc = doc; |
| 3634 |
} |
| 3635 |
CodeMirror.TextMarker = TextMarker; |
| 3636 |
|
| 3637 |
TextMarker.prototype.clear = function() { |
| 3638 |
if (this.explicitlyCleared) return; |
| 3639 |
var cm = this.doc.cm, withOp = cm && !cm.curOp; |
| 3640 |
if (withOp) startOperation(cm); |
| 3641 |
var min = null, max = null; |
| 3642 |
for (var i = 0; i < this.lines.length; ++i) { |
| 3643 |
var line = this.lines[i]; |
| 3644 |
var span = getMarkedSpanFor(line.markedSpans, this); |
| 3645 |
if (span.to != null) max = lineNo(line); |
| 3646 |
line.markedSpans = removeMarkedSpan(line.markedSpans, span); |
| 3647 |
if (span.from != null) |
| 3648 |
min = lineNo(line); |
| 3649 |
else if (this.collapsed && !lineIsHidden(this.doc, line) && cm) |
| 3650 |
updateLineHeight(line, textHeight(cm.display)); |
| 3651 |
} |
| 3652 |
if (cm && this.collapsed && !cm.options.lineWrapping) for (var i = 0; i < this.lines.length; ++i) { |
| 3653 |
var visual = visualLine(cm.doc, this.lines[i]), len = lineLength(cm.doc, visual); |
| 3654 |
if (len > cm.display.maxLineLength) { |
| 3655 |
cm.display.maxLine = visual; |
| 3656 |
cm.display.maxLineLength = len; |
| 3657 |
cm.display.maxLineChanged = true; |
| 3658 |
} |
| 3659 |
} |
| 3660 |
|
| 3661 |
if (min != null && cm) regChange(cm, min, max + 1); |
| 3662 |
this.lines.length = 0; |
| 3663 |
this.explicitlyCleared = true; |
| 3664 |
if (this.atomic && this.doc.cantEdit) { |
| 3665 |
this.doc.cantEdit = false; |
| 3666 |
if (cm) reCheckSelection(cm); |
| 3667 |
} |
| 3668 |
if (withOp) endOperation(cm); |
| 3669 |
signalLater(this, "clear"); |
| 3670 |
}; |
| 3671 |
|
| 3672 |
TextMarker.prototype.find = function() { |
| 3673 |
var from, to; |
| 3674 |
for (var i = 0; i < this.lines.length; ++i) { |
| 3675 |
var line = this.lines[i]; |
| 3676 |
var span = getMarkedSpanFor(line.markedSpans, this); |
| 3677 |
if (span.from != null || span.to != null) { |
| 3678 |
var found = lineNo(line); |
| 3679 |
if (span.from != null) from = Pos(found, span.from); |
| 3680 |
if (span.to != null) to = Pos(found, span.to); |
| 3681 |
} |
| 3682 |
} |
| 3683 |
if (this.type == "bookmark") return from; |
| 3684 |
return from && {from: from, to: to}; |
| 3685 |
}; |
| 3686 |
|
| 3687 |
TextMarker.prototype.changed = function() { |
| 3688 |
var pos = this.find(), cm = this.doc.cm; |
| 3689 |
if (!pos || !cm) return; |
| 3690 |
var line = getLine(this.doc, pos.from.line); |
| 3691 |
clearCachedMeasurement(cm, line); |
| 3692 |
if (pos.from.line >= cm.display.showingFrom && pos.from.line < cm.display.showingTo) { |
| 3693 |
for (var node = cm.display.lineDiv.firstChild; node; node = node.nextSibling) if (node.lineObj == line) { |
| 3694 |
if (node.offsetHeight != line.height) updateLineHeight(line, node.offsetHeight); |
| 3695 |
break; |
| 3696 |
} |
| 3697 |
runInOp(cm, function() { cm.curOp.selectionChanged = true; }); |
| 3698 |
} |
| 3699 |
}; |
| 3700 |
|
| 3701 |
TextMarker.prototype.attachLine = function(line) { |
| 3702 |
if (!this.lines.length && this.doc.cm) { |
| 3703 |
var op = this.doc.cm.curOp; |
| 3704 |
if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1) |
| 3705 |
(op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this); |
| 3706 |
} |
| 3707 |
this.lines.push(line); |
| 3708 |
}; |
| 3709 |
TextMarker.prototype.detachLine = function(line) { |
| 3710 |
this.lines.splice(indexOf(this.lines, line), 1); |
| 3711 |
if (!this.lines.length && this.doc.cm) { |
| 3712 |
var op = this.doc.cm.curOp; |
| 3713 |
(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this); |
| 3714 |
} |
| 3715 |
}; |
| 3716 |
|
| 3717 |
function markText(doc, from, to, options, type) { |
| 3718 |
if (options && options.shared) return markTextShared(doc, from, to, options, type); |
| 3719 |
if (doc.cm && !doc.cm.curOp) return operation(doc.cm, markText)(doc, from, to, options, type); |
| 3720 |
|
| 3721 |
var marker = new TextMarker(doc, type); |
| 3722 |
if (type == "range" && !posLess(from, to)) return marker; |
| 3723 |
if (options) copyObj(options, marker); |
| 3724 |
if (marker.replacedWith) { |
| 3725 |
marker.collapsed = true; |
| 3726 |
marker.replacedWith = elt("span", [marker.replacedWith], "CodeMirror-widget"); |
| 3727 |
if (!options.handleMouseEvents) marker.replacedWith.ignoreEvents = true; |
| 3728 |
} |
| 3729 |
if (marker.collapsed) sawCollapsedSpans = true; |
| 3730 |
|
| 3731 |
if (marker.addToHistory) |
| 3732 |
addToHistory(doc, {from: from, to: to, origin: "markText"}, |
| 3733 |
{head: doc.sel.head, anchor: doc.sel.anchor}, NaN); |
| 3734 |
|
| 3735 |
var curLine = from.line, size = 0, collapsedAtStart, collapsedAtEnd, cm = doc.cm, updateMaxLine; |
| 3736 |
doc.iter(curLine, to.line + 1, function(line) { |
| 3737 |
if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(doc, line) == cm.display.maxLine) |
| 3738 |
updateMaxLine = true; |
| 3739 |
var span = {from: null, to: null, marker: marker}; |
| 3740 |
size += line.text.length; |
| 3741 |
if (curLine == from.line) {span.from = from.ch; size -= from.ch;} |
| 3742 |
if (curLine == to.line) {span.to = to.ch; size -= line.text.length - to.ch;} |
| 3743 |
if (marker.collapsed) { |
| 3744 |
if (curLine == to.line) collapsedAtEnd = collapsedSpanAt(line, to.ch); |
| 3745 |
if (curLine == from.line) collapsedAtStart = collapsedSpanAt(line, from.ch); |
| 3746 |
else updateLineHeight(line, 0); |
| 3747 |
} |
| 3748 |
addMarkedSpan(line, span); |
| 3749 |
++curLine; |
| 3750 |
}); |
| 3751 |
if (marker.collapsed) doc.iter(from.line, to.line + 1, function(line) { |
| 3752 |
if (lineIsHidden(doc, line)) updateLineHeight(line, 0); |
| 3753 |
}); |
| 3754 |
|
| 3755 |
if (marker.clearOnEnter) on(marker, "beforeCursorEnter", function() { marker.clear(); }); |
| 3756 |
|
| 3757 |
if (marker.readOnly) { |
| 3758 |
sawReadOnlySpans = true; |
| 3759 |
if (doc.history.done.length || doc.history.undone.length) |
| 3760 |
doc.clearHistory(); |
| 3761 |
} |
| 3762 |
if (marker.collapsed) { |
| 3763 |
if (collapsedAtStart != collapsedAtEnd) |
| 3764 |
throw new Error("Inserting collapsed marker overlapping an existing one"); |
| 3765 |
marker.size = size; |
| 3766 |
marker.atomic = true; |
| 3767 |
} |
| 3768 |
if (cm) { |
| 3769 |
if (updateMaxLine) cm.curOp.updateMaxLine = true; |
| 3770 |
if (marker.className || marker.startStyle || marker.endStyle || marker.collapsed) |
| 3771 |
regChange(cm, from.line, to.line + 1); |
| 3772 |
if (marker.atomic) reCheckSelection(cm); |
| 3773 |
} |
| 3774 |
return marker; |
| 3775 |
} |
| 3776 |
|
| 3777 |
// SHARED TEXTMARKERS |
| 3778 |
|
| 3779 |
function SharedTextMarker(markers, primary) { |
| 3780 |
this.markers = markers; |
| 3781 |
this.primary = primary; |
| 3782 |
for (var i = 0, me = this; i < markers.length; ++i) { |
| 3783 |
markers[i].parent = this; |
| 3784 |
on(markers[i], "clear", function(){me.clear();}); |
| 3785 |
} |
| 3786 |
} |
| 3787 |
CodeMirror.SharedTextMarker = SharedTextMarker; |
| 3788 |
|
| 3789 |
SharedTextMarker.prototype.clear = function() { |
| 3790 |
if (this.explicitlyCleared) return; |
| 3791 |
this.explicitlyCleared = true; |
| 3792 |
for (var i = 0; i < this.markers.length; ++i) |
| 3793 |
this.markers[i].clear(); |
| 3794 |
signalLater(this, "clear"); |
| 3795 |
}; |
| 3796 |
SharedTextMarker.prototype.find = function() { |
| 3797 |
return this.primary.find(); |
| 3798 |
}; |
| 3799 |
|
| 3800 |
function markTextShared(doc, from, to, options, type) { |
| 3801 |
options = copyObj(options); |
| 3802 |
options.shared = false; |
| 3803 |
var markers = [markText(doc, from, to, options, type)], primary = markers[0]; |
| 3804 |
var widget = options.replacedWith; |
| 3805 |
linkedDocs(doc, function(doc) { |
| 3806 |
if (widget) options.replacedWith = widget.cloneNode(true); |
| 3807 |
markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type)); |
| 3808 |
for (var i = 0; i < doc.linked.length; ++i) |
| 3809 |
if (doc.linked[i].isParent) return; |
| 3810 |
primary = lst(markers); |
| 3811 |
}); |
| 3812 |
return new SharedTextMarker(markers, primary); |
| 3813 |
} |
| 3814 |
|
| 3815 |
// TEXTMARKER SPANS |
| 3816 |
|
| 3817 |
function getMarkedSpanFor(spans, marker) { |
| 3818 |
if (spans) for (var i = 0; i < spans.length; ++i) { |
| 3819 |
var span = spans[i]; |
| 3820 |
if (span.marker == marker) return span; |
| 3821 |
} |
| 3822 |
} |
| 3823 |
function removeMarkedSpan(spans, span) { |
| 3824 |
for (var r, i = 0; i < spans.length; ++i) |
| 3825 |
if (spans[i] != span) (r || (r = [])).push(spans[i]); |
| 3826 |
return r; |
| 3827 |
} |
| 3828 |
function addMarkedSpan(line, span) { |
| 3829 |
line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span]; |
| 3830 |
span.marker.attachLine(line); |
| 3831 |
} |
| 3832 |
|
| 3833 |
function markedSpansBefore(old, startCh, isInsert) { |
| 3834 |
if (old) for (var i = 0, nw; i < old.length; ++i) { |
| 3835 |
var span = old[i], marker = span.marker; |
| 3836 |
var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh); |
| 3837 |
if (startsBefore || marker.type == "bookmark" && span.from == startCh && (!isInsert || !span.marker.insertLeft)) { |
| 3838 |
var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh); |
| 3839 |
(nw || (nw = [])).push({from: span.from, |
| 3840 |
to: endsAfter ? null : span.to, |
| 3841 |
marker: marker}); |
| 3842 |
} |
| 3843 |
} |
| 3844 |
return nw; |
| 3845 |
} |
| 3846 |
|
| 3847 |
function markedSpansAfter(old, endCh, isInsert) { |
| 3848 |
if (old) for (var i = 0, nw; i < old.length; ++i) { |
| 3849 |
var span = old[i], marker = span.marker; |
| 3850 |
var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh); |
| 3851 |
if (endsAfter || marker.type == "bookmark" && span.from == endCh && (!isInsert || span.marker.insertLeft)) { |
| 3852 |
var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh); |
| 3853 |
(nw || (nw = [])).push({from: startsBefore ? null : span.from - endCh, |
| 3854 |
to: span.to == null ? null : span.to - endCh, |
| 3855 |
marker: marker}); |
| 3856 |
} |
| 3857 |
} |
| 3858 |
return nw; |
| 3859 |
} |
| 3860 |
|
| 3861 |
function stretchSpansOverChange(doc, change) { |
| 3862 |
var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans; |
| 3863 |
var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans; |
| 3864 |
if (!oldFirst && !oldLast) return null; |
| 3865 |
|
| 3866 |
var startCh = change.from.ch, endCh = change.to.ch, isInsert = posEq(change.from, change.to); |
| 3867 |
// Get the spans that 'stick out' on both sides |
| 3868 |
var first = markedSpansBefore(oldFirst, startCh, isInsert); |
| 3869 |
var last = markedSpansAfter(oldLast, endCh, isInsert); |
| 3870 |
|
| 3871 |
// Next, merge those two ends |
| 3872 |
var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0); |
| 3873 |
if (first) { |
| 3874 |
// Fix up .to properties of first |
| 3875 |
for (var i = 0; i < first.length; ++i) { |
| 3876 |
var span = first[i]; |
| 3877 |
if (span.to == null) { |
| 3878 |
var found = getMarkedSpanFor(last, span.marker); |
| 3879 |
if (!found) span.to = startCh; |
| 3880 |
else if (sameLine) span.to = found.to == null ? null : found.to + offset; |
| 3881 |
} |
| 3882 |
} |
| 3883 |
} |
| 3884 |
if (last) { |
| 3885 |
// Fix up .from in last (or move them into first in case of sameLine) |
| 3886 |
for (var i = 0; i < last.length; ++i) { |
| 3887 |
var span = last[i]; |
| 3888 |
if (span.to != null) span.to += offset; |
| 3889 |
if (span.from == null) { |
| 3890 |
var found = getMarkedSpanFor(first, span.marker); |
| 3891 |
if (!found) { |
| 3892 |
span.from = offset; |
| 3893 |
if (sameLine) (first || (first = [])).push(span); |
| 3894 |
} |
| 3895 |
} else { |
| 3896 |
span.from += offset; |
| 3897 |
if (sameLine) (first || (first = [])).push(span); |
| 3898 |
} |
| 3899 |
} |
| 3900 |
} |
| 3901 |
if (sameLine && first) { |
| 3902 |
// Make sure we didn't create any zero-length spans |
| 3903 |
for (var i = 0; i < first.length; ++i) |
| 3904 |
if (first[i].from != null && first[i].from == first[i].to && first[i].marker.type != "bookmark") |
| 3905 |
first.splice(i--, 1); |
| 3906 |
if (!first.length) first = null; |
| 3907 |
} |
| 3908 |
|
| 3909 |
var newMarkers = [first]; |
| 3910 |
if (!sameLine) { |
| 3911 |
// Fill gap with whole-line-spans |
| 3912 |
var gap = change.text.length - 2, gapMarkers; |
| 3913 |
if (gap > 0 && first) |
| 3914 |
for (var i = 0; i < first.length; ++i) |
| 3915 |
if (first[i].to == null) |
| 3916 |
(gapMarkers || (gapMarkers = [])).push({from: null, to: null, marker: first[i].marker}); |
| 3917 |
for (var i = 0; i < gap; ++i) |
| 3918 |
newMarkers.push(gapMarkers); |
| 3919 |
newMarkers.push(last); |
| 3920 |
} |
| 3921 |
return newMarkers; |
| 3922 |
} |
| 3923 |
|
| 3924 |
function mergeOldSpans(doc, change) { |
| 3925 |
var old = getOldSpans(doc, change); |
| 3926 |
var stretched = stretchSpansOverChange(doc, change); |
| 3927 |
if (!old) return stretched; |
| 3928 |
if (!stretched) return old; |
| 3929 |
|
| 3930 |
for (var i = 0; i < old.length; ++i) { |
| 3931 |
var oldCur = old[i], stretchCur = stretched[i]; |
| 3932 |
if (oldCur && stretchCur) { |
| 3933 |
spans: for (var j = 0; j < stretchCur.length; ++j) { |
| 3934 |
var span = stretchCur[j]; |
| 3935 |
for (var k = 0; k < oldCur.length; ++k) |
| 3936 |
if (oldCur[k].marker == span.marker) continue spans; |
| 3937 |
oldCur.push(span); |
| 3938 |
} |
| 3939 |
} else if (stretchCur) { |
| 3940 |
old[i] = stretchCur; |
| 3941 |
} |
| 3942 |
} |
| 3943 |
return old; |
| 3944 |
} |
| 3945 |
|
| 3946 |
function removeReadOnlyRanges(doc, from, to) { |
| 3947 |
var markers = null; |
| 3948 |
doc.iter(from.line, to.line + 1, function(line) { |
| 3949 |
if (line.markedSpans) for (var i = 0; i < line.markedSpans.length; ++i) { |
| 3950 |
var mark = line.markedSpans[i].marker; |
| 3951 |
if (mark.readOnly && (!markers || indexOf(markers, mark) == -1)) |
| 3952 |
(markers || (markers = [])).push(mark); |
| 3953 |
} |
| 3954 |
}); |
| 3955 |
if (!markers) return null; |
| 3956 |
var parts = [{from: from, to: to}]; |
| 3957 |
for (var i = 0; i < markers.length; ++i) { |
| 3958 |
var mk = markers[i], m = mk.find(); |
| 3959 |
for (var j = 0; j < parts.length; ++j) { |
| 3960 |
var p = parts[j]; |
| 3961 |
if (posLess(p.to, m.from) || posLess(m.to, p.from)) continue; |
| 3962 |
var newParts = [j, 1]; |
| 3963 |
if (posLess(p.from, m.from) || !mk.inclusiveLeft && posEq(p.from, m.from)) |
| 3964 |
newParts.push({from: p.from, to: m.from}); |
| 3965 |
if (posLess(m.to, p.to) || !mk.inclusiveRight && posEq(p.to, m.to)) |
| 3966 |
newParts.push({from: m.to, to: p.to}); |
| 3967 |
parts.splice.apply(parts, newParts); |
| 3968 |
j += newParts.length - 1; |
| 3969 |
} |
| 3970 |
} |
| 3971 |
return parts; |
| 3972 |
} |
| 3973 |
|
| 3974 |
function collapsedSpanAt(line, ch) { |
| 3975 |
var sps = sawCollapsedSpans && line.markedSpans, found; |
| 3976 |
if (sps) for (var sp, i = 0; i < sps.length; ++i) { |
| 3977 |
sp = sps[i]; |
| 3978 |
if (!sp.marker.collapsed) continue; |
| 3979 |
if ((sp.from == null || sp.from < ch) && |
| 3980 |
(sp.to == null || sp.to > ch) && |
| 3981 |
(!found || found.width < sp.marker.width)) |
| 3982 |
found = sp.marker; |
| 3983 |
} |
| 3984 |
return found; |
| 3985 |
} |
| 3986 |
function collapsedSpanAtStart(line) { return collapsedSpanAt(line, -1); } |
| 3987 |
function collapsedSpanAtEnd(line) { return collapsedSpanAt(line, line.text.length + 1); } |
| 3988 |
|
| 3989 |
function visualLine(doc, line) { |
| 3990 |
var merged; |
| 3991 |
while (merged = collapsedSpanAtStart(line)) |
| 3992 |
line = getLine(doc, merged.find().from.line); |
| 3993 |
return line; |
| 3994 |
} |
| 3995 |
|
| 3996 |
function lineIsHidden(doc, line) { |
| 3997 |
var sps = sawCollapsedSpans && line.markedSpans; |
| 3998 |
if (sps) for (var sp, i = 0; i < sps.length; ++i) { |
| 3999 |
sp = sps[i]; |
| 4000 |
if (!sp.marker.collapsed) continue; |
| 4001 |
if (sp.from == null) return true; |
| 4002 |
if (sp.marker.replacedWith) continue; |
| 4003 |
if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp)) |
| 4004 |
return true; |
| 4005 |
} |
| 4006 |
} |
| 4007 |
function lineIsHiddenInner(doc, line, span) { |
| 4008 |
if (span.to == null) { |
| 4009 |
var end = span.marker.find().to, endLine = getLine(doc, end.line); |
| 4010 |
return lineIsHiddenInner(doc, endLine, getMarkedSpanFor(endLine.markedSpans, span.marker)); |
| 4011 |
} |
| 4012 |
if (span.marker.inclusiveRight && span.to == line.text.length) |
| 4013 |
return true; |
| 4014 |
for (var sp, i = 0; i < line.markedSpans.length; ++i) { |
| 4015 |
sp = line.markedSpans[i]; |
| 4016 |
if (sp.marker.collapsed && !sp.marker.replacedWith && sp.from == span.to && |
| 4017 |
(sp.marker.inclusiveLeft || span.marker.inclusiveRight) && |
| 4018 |
lineIsHiddenInner(doc, line, sp)) return true; |
| 4019 |
} |
| 4020 |
} |
| 4021 |
|
| 4022 |
function detachMarkedSpans(line) { |
| 4023 |
var spans = line.markedSpans; |
| 4024 |
if (!spans) return; |
| 4025 |
for (var i = 0; i < spans.length; ++i) |
| 4026 |
spans[i].marker.detachLine(line); |
| 4027 |
line.markedSpans = null; |
| 4028 |
} |
| 4029 |
|
| 4030 |
function attachMarkedSpans(line, spans) { |
| 4031 |
if (!spans) return; |
| 4032 |
for (var i = 0; i < spans.length; ++i) |
| 4033 |
spans[i].marker.attachLine(line); |
| 4034 |
line.markedSpans = spans; |
| 4035 |
} |
| 4036 |
|
| 4037 |
// LINE WIDGETS |
| 4038 |
|
| 4039 |
var LineWidget = CodeMirror.LineWidget = function(cm, node, options) { |
| 4040 |
for (var opt in options) if (options.hasOwnProperty(opt)) |
| 4041 |
this[opt] = options[opt]; |
| 4042 |
this.cm = cm; |
| 4043 |
this.node = node; |
| 4044 |
}; |
| 4045 |
function widgetOperation(f) { |
| 4046 |
return function() { |
| 4047 |
var withOp = !this.cm.curOp; |
| 4048 |
if (withOp) startOperation(this.cm); |
| 4049 |
try {var result = f.apply(this, arguments);} |
| 4050 |
finally {if (withOp) endOperation(this.cm);} |
| 4051 |
return result; |
| 4052 |
}; |
| 4053 |
} |
| 4054 |
LineWidget.prototype.clear = widgetOperation(function() { |
| 4055 |
var ws = this.line.widgets, no = lineNo(this.line); |
| 4056 |
if (no == null || !ws) return; |
| 4057 |
for (var i = 0; i < ws.length; ++i) if (ws[i] == this) ws.splice(i--, 1); |
| 4058 |
if (!ws.length) this.line.widgets = null; |
| 4059 |
updateLineHeight(this.line, Math.max(0, this.line.height - widgetHeight(this))); |
| 4060 |
regChange(this.cm, no, no + 1); |
| 4061 |
}); |
| 4062 |
LineWidget.prototype.changed = widgetOperation(function() { |
| 4063 |
var oldH = this.height; |
| 4064 |
this.height = null; |
| 4065 |
var diff = widgetHeight(this) - oldH; |
| 4066 |
if (!diff) return; |
| 4067 |
updateLineHeight(this.line, this.line.height + diff); |
| 4068 |
var no = lineNo(this.line); |
| 4069 |
regChange(this.cm, no, no + 1); |
| 4070 |
}); |
| 4071 |
|
| 4072 |
function widgetHeight(widget) { |
| 4073 |
if (widget.height != null) return widget.height; |
| 4074 |
if (!widget.node.parentNode || widget.node.parentNode.nodeType != 1) |
| 4075 |
removeChildrenAndAdd(widget.cm.display.measure, elt("div", [widget.node], null, "position: relative")); |
| 4076 |
return widget.height = widget.node.offsetHeight; |
| 4077 |
} |
| 4078 |
|
| 4079 |
function addLineWidget(cm, handle, node, options) { |
| 4080 |
var widget = new LineWidget(cm, node, options); |
| 4081 |
if (widget.noHScroll) cm.display.alignWidgets = true; |
| 4082 |
changeLine(cm, handle, function(line) { |
| 4083 |
(line.widgets || (line.widgets = [])).push(widget); |
| 4084 |
widget.line = line; |
| 4085 |
if (!lineIsHidden(cm.doc, line) || widget.showIfHidden) { |
| 4086 |
var aboveVisible = heightAtLine(cm, line) < cm.display.scroller.scrollTop; |
| 4087 |
updateLineHeight(line, line.height + widgetHeight(widget)); |
| 4088 |
if (aboveVisible) addToScrollPos(cm, 0, widget.height); |
| 4089 |
} |
| 4090 |
return true; |
| 4091 |
}); |
| 4092 |
return widget; |
| 4093 |
} |
| 4094 |
|
| 4095 |
// LINE DATA STRUCTURE |
| 4096 |
|
| 4097 |
// Line objects. These hold state related to a line, including |
| 4098 |
// highlighting info (the styles array). |
| 4099 |
function makeLine(text, markedSpans, estimateHeight) { |
| 4100 |
var line = {text: text}; |
| 4101 |
attachMarkedSpans(line, markedSpans); |
| 4102 |
line.height = estimateHeight ? estimateHeight(line) : 1; |
| 4103 |
return line; |
| 4104 |
} |
| 4105 |
|
| 4106 |
function updateLine(line, text, markedSpans, estimateHeight) { |
| 4107 |
line.text = text; |
| 4108 |
if (line.stateAfter) line.stateAfter = null; |
| 4109 |
if (line.styles) line.styles = null; |
| 4110 |
if (line.order != null) line.order = null; |
| 4111 |
detachMarkedSpans(line); |
| 4112 |
attachMarkedSpans(line, markedSpans); |
| 4113 |
var estHeight = estimateHeight ? estimateHeight(line) : 1; |
| 4114 |
if (estHeight != line.height) updateLineHeight(line, estHeight); |
| 4115 |
} |
| 4116 |
|
| 4117 |
function cleanUpLine(line) { |
| 4118 |
line.parent = null; |
| 4119 |
detachMarkedSpans(line); |
| 4120 |
} |
| 4121 |
|
| 4122 |
// Run the given mode's parser over a line, update the styles |
| 4123 |
// array, which contains alternating fragments of text and CSS |
| 4124 |
// classes. |
| 4125 |
function runMode(cm, text, mode, state, f) { |
| 4126 |
var flattenSpans = mode.flattenSpans; |
| 4127 |
if (flattenSpans == null) flattenSpans = cm.options.flattenSpans; |
| 4128 |
var curStart = 0, curStyle = null; |
| 4129 |
var stream = new StringStream(text, cm.options.tabSize), style; |
| 4130 |
if (text == "" && mode.blankLine) mode.blankLine(state); |
| 4131 |
while (!stream.eol()) { |
| 4132 |
if (stream.pos > cm.options.maxHighlightLength) { |
| 4133 |
flattenSpans = false; |
| 4134 |
// Webkit seems to refuse to render text nodes longer than 57444 characters |
| 4135 |
stream.pos = Math.min(text.length, stream.start + 50000); |
| 4136 |
style = null; |
| 4137 |
} else { |
| 4138 |
style = mode.token(stream, state); |
| 4139 |
} |
| 4140 |
if (!flattenSpans || curStyle != style) { |
| 4141 |
if (curStart < stream.start) f(stream.start, curStyle); |
| 4142 |
curStart = stream.start; curStyle = style; |
| 4143 |
} |
| 4144 |
stream.start = stream.pos; |
| 4145 |
} |
| 4146 |
if (curStart < stream.pos) f(stream.pos, curStyle); |
| 4147 |
} |
| 4148 |
|
| 4149 |
function highlightLine(cm, line, state) { |
| 4150 |
// A styles array always starts with a number identifying the |
| 4151 |
// mode/overlays that it is based on (for easy invalidation). |
| 4152 |
var st = [cm.state.modeGen]; |
| 4153 |
// Compute the base array of styles |
| 4154 |
runMode(cm, line.text, cm.doc.mode, state, function(end, style) {st.push(end, style);}); |
| 4155 |
|
| 4156 |
// Run overlays, adjust style array. |
| 4157 |
for (var o = 0; o < cm.state.overlays.length; ++o) { |
| 4158 |
var overlay = cm.state.overlays[o], i = 1, at = 0; |
| 4159 |
runMode(cm, line.text, overlay.mode, true, function(end, style) { |
| 4160 |
var start = i; |
| 4161 |
// Ensure there's a token end at the current position, and that i points at it |
| 4162 |
while (at < end) { |
| 4163 |
var i_end = st[i]; |
| 4164 |
if (i_end > end) |
| 4165 |
st.splice(i, 1, end, st[i+1], i_end); |
| 4166 |
i += 2; |
| 4167 |
at = Math.min(end, i_end); |
| 4168 |
} |
| 4169 |
if (!style) return; |
| 4170 |
if (overlay.opaque) { |
| 4171 |
st.splice(start, i - start, end, style); |
| 4172 |
i = start + 2; |
| 4173 |
} else { |
| 4174 |
for (; start < i; start += 2) { |
| 4175 |
var cur = st[start+1]; |
| 4176 |
st[start+1] = cur ? cur + " " + style : style; |
| 4177 |
} |
| 4178 |
} |
| 4179 |
}); |
| 4180 |
} |
| 4181 |
|
| 4182 |
return st; |
| 4183 |
} |
| 4184 |
|
| 4185 |
function getLineStyles(cm, line) { |
| 4186 |
if (!line.styles || line.styles[0] != cm.state.modeGen) |
| 4187 |
line.styles = highlightLine(cm, line, line.stateAfter = getStateBefore(cm, lineNo(line))); |
| 4188 |
return line.styles; |
| 4189 |
} |
| 4190 |
|
| 4191 |
// Lightweight form of highlight -- proceed over this line and |
| 4192 |
// update state, but don't save a style array. |
| 4193 |
function processLine(cm, line, state) { |
| 4194 |
var mode = cm.doc.mode; |
| 4195 |
var stream = new StringStream(line.text, cm.options.tabSize); |
| 4196 |
if (line.text == "" && mode.blankLine) mode.blankLine(state); |
| 4197 |
while (!stream.eol() && stream.pos <= cm.options.maxHighlightLength) { |
| 4198 |
mode.token(stream, state); |
| 4199 |
stream.start = stream.pos; |
| 4200 |
} |
| 4201 |
} |
| 4202 |
|
| 4203 |
var styleToClassCache = {}; |
| 4204 |
function styleToClass(style) { |
| 4205 |
if (!style) return null; |
| 4206 |
return styleToClassCache[style] || |
| 4207 |
(styleToClassCache[style] = "cm-" + style.replace(/ +/g, " cm-")); |
| 4208 |
} |
| 4209 |
|
| 4210 |
function lineContent(cm, realLine, measure) { |
| 4211 |
var merged, line = realLine, empty = true; |
| 4212 |
while (merged = collapsedSpanAtStart(line)) |
| 4213 |
line = getLine(cm.doc, merged.find().from.line); |
| 4214 |
|
| 4215 |
var builder = {pre: elt("pre"), col: 0, pos: 0, display: !measure, |
| 4216 |
measure: null, measuredSomething: false, cm: cm}; |
| 4217 |
if (line.textClass) builder.pre.className = line.textClass; |
| 4218 |
|
| 4219 |
do { |
| 4220 |
if (line.text) empty = false; |
| 4221 |
builder.measure = line == realLine && measure; |
| 4222 |
builder.pos = 0; |
| 4223 |
builder.addToken = builder.measure ? buildTokenMeasure : buildToken; |
| 4224 |
if ((ie || webkit) && cm.getOption("lineWrapping")) |
| 4225 |
builder.addToken = buildTokenSplitSpaces(builder.addToken); |
| 4226 |
var next = insertLineContent(line, builder, getLineStyles(cm, line)); |
| 4227 |
if (measure && line == realLine && !builder.measuredSomething) { |
| 4228 |
measure[0] = builder.pre.appendChild(zeroWidthElement(cm.display.measure)); |
| 4229 |
builder.measuredSomething = true; |
| 4230 |
} |
| 4231 |
if (next) line = getLine(cm.doc, next.to.line); |
| 4232 |
} while (next); |
| 4233 |
|
| 4234 |
if (measure && !builder.measuredSomething && !measure[0]) |
| 4235 |
measure[0] = builder.pre.appendChild(empty ? elt("span", "\u00a0") : zeroWidthElement(cm.display.measure)); |
| 4236 |
if (!builder.pre.firstChild && !lineIsHidden(cm.doc, realLine)) |
| 4237 |
builder.pre.appendChild(document.createTextNode("\u00a0")); |
| 4238 |
|
| 4239 |
var order; |
| 4240 |
// Work around problem with the reported dimensions of single-char |
| 4241 |
// direction spans on IE (issue #1129). See also the comment in |
| 4242 |
// cursorCoords. |
| 4243 |
if (measure && ie && (order = getOrder(line))) { |
| 4244 |
var l = order.length - 1; |
| 4245 |
if (order[l].from == order[l].to) --l; |
| 4246 |
var last = order[l], prev = order[l - 1]; |
| 4247 |
if (last.from + 1 == last.to && prev && last.level < prev.level) { |
| 4248 |
var span = measure[builder.pos - 1]; |
| 4249 |
if (span) span.parentNode.insertBefore(span.measureRight = zeroWidthElement(cm.display.measure), |
| 4250 |
span.nextSibling); |
| 4251 |
} |
| 4252 |
} |
| 4253 |
|
| 4254 |
signal(cm, "renderLine", cm, realLine, builder.pre); |
| 4255 |
return builder.pre; |
| 4256 |
} |
| 4257 |
|
| 4258 |
var tokenSpecialChars = /[\t\u0000-\u0019\u00ad\u200b\u2028\u2029\uFEFF]/g; |
| 4259 |
function buildToken(builder, text, style, startStyle, endStyle) { |
| 4260 |
if (!text) return; |
| 4261 |
if (!tokenSpecialChars.test(text)) { |
| 4262 |
builder.col += text.length; |
| 4263 |
var content = document.createTextNode(text); |
| 4264 |
} else { |
| 4265 |
var content = document.createDocumentFragment(), pos = 0; |
| 4266 |
while (true) { |
| 4267 |
tokenSpecialChars.lastIndex = pos; |
| 4268 |
var m = tokenSpecialChars.exec(text); |
| 4269 |
var skipped = m ? m.index - pos : text.length - pos; |
| 4270 |
if (skipped) { |
| 4271 |
content.appendChild(document.createTextNode(text.slice(pos, pos + skipped))); |
| 4272 |
builder.col += skipped; |
| 4273 |
} |
| 4274 |
if (!m) break; |
| 4275 |
pos += skipped + 1; |
| 4276 |
if (m[0] == "\t") { |
| 4277 |
var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize; |
| 4278 |
content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab")); |
| 4279 |
builder.col += tabWidth; |
| 4280 |
} else { |
| 4281 |
var token = elt("span", "\u2022", "cm-invalidchar"); |
| 4282 |
token.title = "\\u" + m[0].charCodeAt(0).toString(16); |
| 4283 |
content.appendChild(token); |
| 4284 |
builder.col += 1; |
| 4285 |
} |
| 4286 |
} |
| 4287 |
} |
| 4288 |
if (style || startStyle || endStyle || builder.measure) { |
| 4289 |
var fullStyle = style || ""; |
| 4290 |
if (startStyle) fullStyle += startStyle; |
| 4291 |
if (endStyle) fullStyle += endStyle; |
| 4292 |
return builder.pre.appendChild(elt("span", [content], fullStyle)); |
| 4293 |
} |
| 4294 |
builder.pre.appendChild(content); |
| 4295 |
} |
| 4296 |
|
| 4297 |
function buildTokenMeasure(builder, text, style, startStyle, endStyle) { |
| 4298 |
var wrapping = builder.cm.options.lineWrapping; |
| 4299 |
for (var i = 0; i < text.length; ++i) { |
| 4300 |
var ch = text.charAt(i), start = i == 0; |
| 4301 |
if (ch >= "\ud800" && ch < "\udbff" && i < text.length - 1) { |
| 4302 |
ch = text.slice(i, i + 2); |
| 4303 |
++i; |
| 4304 |
} else if (i && wrapping && spanAffectsWrapping(text, i)) { |
| 4305 |
builder.pre.appendChild(elt("wbr")); |
| 4306 |
} |
| 4307 |
var span = builder.measure[builder.pos] = |
| 4308 |
buildToken(builder, ch, style, |
| 4309 |
start && startStyle, i == text.length - 1 && endStyle); |
| 4310 |
// In IE single-space nodes wrap differently than spaces |
| 4311 |
// embedded in larger text nodes, except when set to |
| 4312 |
// white-space: normal (issue #1268). |
| 4313 |
if (ie && wrapping && ch == " " && i && !/\s/.test(text.charAt(i - 1)) && |
| 4314 |
i < text.length - 1 && !/\s/.test(text.charAt(i + 1))) |
| 4315 |
span.style.whiteSpace = "normal"; |
| 4316 |
builder.pos += ch.length; |
| 4317 |
} |
| 4318 |
if (text.length) builder.measuredSomething = true; |
| 4319 |
} |
| 4320 |
|
| 4321 |
function buildTokenSplitSpaces(inner) { |
| 4322 |
function split(old) { |
| 4323 |
var out = " "; |
| 4324 |
for (var i = 0; i < old.length - 2; ++i) out += i % 2 ? " " : "\u00a0"; |
| 4325 |
out += " "; |
| 4326 |
return out; |
| 4327 |
} |
| 4328 |
return function(builder, text, style, startStyle, endStyle) { |
| 4329 |
return inner(builder, text.replace(/ {3,}/, split), style, startStyle, endStyle); |
| 4330 |
}; |
| 4331 |
} |
| 4332 |
|
| 4333 |
function buildCollapsedSpan(builder, size, widget) { |
| 4334 |
if (widget) { |
| 4335 |
if (!builder.display) widget = widget.cloneNode(true); |
| 4336 |
if (builder.measure) { |
| 4337 |
builder.measure[builder.pos] = size ? widget |
| 4338 |
: builder.pre.appendChild(zeroWidthElement(builder.cm.display.measure)); |
| 4339 |
builder.measuredSomething = true; |
| 4340 |
} |
| 4341 |
builder.pre.appendChild(widget); |
| 4342 |
} |
| 4343 |
builder.pos += size; |
| 4344 |
} |
| 4345 |
|
| 4346 |
// Outputs a number of spans to make up a line, taking highlighting |
| 4347 |
// and marked text into account. |
| 4348 |
function insertLineContent(line, builder, styles) { |
| 4349 |
var spans = line.markedSpans, allText = line.text, at = 0; |
| 4350 |
if (!spans) { |
| 4351 |
for (var i = 1; i < styles.length; i+=2) |
| 4352 |
builder.addToken(builder, allText.slice(at, at = styles[i]), styleToClass(styles[i+1])); |
| 4353 |
return; |
| 4354 |
} |
| 4355 |
|
| 4356 |
var len = allText.length, pos = 0, i = 1, text = "", style; |
| 4357 |
var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, collapsed; |
| 4358 |
for (;;) { |
| 4359 |
if (nextChange == pos) { // Update current marker set |
| 4360 |
spanStyle = spanEndStyle = spanStartStyle = ""; |
| 4361 |
collapsed = null; nextChange = Infinity; |
| 4362 |
var foundBookmark = null; |
| 4363 |
for (var j = 0; j < spans.length; ++j) { |
| 4364 |
var sp = spans[j], m = sp.marker; |
| 4365 |
if (sp.from <= pos && (sp.to == null || sp.to > pos)) { |
| 4366 |
if (sp.to != null && nextChange > sp.to) { nextChange = sp.to; spanEndStyle = ""; } |
| 4367 |
if (m.className) spanStyle += " " + m.className; |
| 4368 |
if (m.startStyle && sp.from == pos) spanStartStyle += " " + m.startStyle; |
| 4369 |
if (m.endStyle && sp.to == nextChange) spanEndStyle += " " + m.endStyle; |
| 4370 |
if (m.collapsed && (!collapsed || collapsed.marker.size < m.size)) |
| 4371 |
collapsed = sp; |
| 4372 |
} else if (sp.from > pos && nextChange > sp.from) { |
| 4373 |
nextChange = sp.from; |
| 4374 |
} |
| 4375 |
if (m.type == "bookmark" && sp.from == pos && m.replacedWith) |
| 4376 |
foundBookmark = m.replacedWith; |
| 4377 |
} |
| 4378 |
if (collapsed && (collapsed.from || 0) == pos) { |
| 4379 |
buildCollapsedSpan(builder, (collapsed.to == null ? len : collapsed.to) - pos, |
| 4380 |
collapsed.from != null && collapsed.marker.replacedWith); |
| 4381 |
if (collapsed.to == null) return collapsed.marker.find(); |
| 4382 |
} |
| 4383 |
if (foundBookmark && !collapsed) buildCollapsedSpan(builder, 0, foundBookmark); |
| 4384 |
} |
| 4385 |
if (pos >= len) break; |
| 4386 |
|
| 4387 |
var upto = Math.min(len, nextChange); |
| 4388 |
while (true) { |
| 4389 |
if (text) { |
| 4390 |
var end = pos + text.length; |
| 4391 |
if (!collapsed) { |
| 4392 |
var tokenText = end > upto ? text.slice(0, upto - pos) : text; |
| 4393 |
builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle, |
| 4394 |
spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : ""); |
| 4395 |
} |
| 4396 |
if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;} |
| 4397 |
pos = end; |
| 4398 |
spanStartStyle = ""; |
| 4399 |
} |
| 4400 |
text = allText.slice(at, at = styles[i++]); |
| 4401 |
style = styleToClass(styles[i++]); |
| 4402 |
} |
| 4403 |
} |
| 4404 |
} |
| 4405 |
|
| 4406 |
// DOCUMENT DATA STRUCTURE |
| 4407 |
|
| 4408 |
function updateDoc(doc, change, markedSpans, selAfter, estimateHeight) { |
| 4409 |
function spansFor(n) {return markedSpans ? markedSpans[n] : null;} |
| 4410 |
function update(line, text, spans) { |
| 4411 |
updateLine(line, text, spans, estimateHeight); |
| 4412 |
signalLater(line, "change", line, change); |
| 4413 |
} |
| 4414 |
|
| 4415 |
var from = change.from, to = change.to, text = change.text; |
| 4416 |
var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line); |
| 4417 |
var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line; |
| 4418 |
|
| 4419 |
// First adjust the line structure |
| 4420 |
if (from.ch == 0 && to.ch == 0 && lastText == "") { |
| 4421 |
// This is a whole-line replace. Treated specially to make |
| 4422 |
// sure line objects move the way they are supposed to. |
| 4423 |
for (var i = 0, e = text.length - 1, added = []; i < e; ++i) |
| 4424 |
added.push(makeLine(text[i], spansFor(i), estimateHeight)); |
| 4425 |
update(lastLine, lastLine.text, lastSpans); |
| 4426 |
if (nlines) doc.remove(from.line, nlines); |
| 4427 |
if (added.length) doc.insert(from.line, added); |
| 4428 |
} else if (firstLine == lastLine) { |
| 4429 |
if (text.length == 1) { |
| 4430 |
update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans); |
| 4431 |
} else { |
| 4432 |
for (var added = [], i = 1, e = text.length - 1; i < e; ++i) |
| 4433 |
added.push(makeLine(text[i], spansFor(i), estimateHeight)); |
| 4434 |
added.push(makeLine(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight)); |
| 4435 |
update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); |
| 4436 |
doc.insert(from.line + 1, added); |
| 4437 |
} |
| 4438 |
} else if (text.length == 1) { |
| 4439 |
update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0)); |
| 4440 |
doc.remove(from.line + 1, nlines); |
| 4441 |
} else { |
| 4442 |
update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); |
| 4443 |
update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans); |
| 4444 |
for (var i = 1, e = text.length - 1, added = []; i < e; ++i) |
| 4445 |
added.push(makeLine(text[i], spansFor(i), estimateHeight)); |
| 4446 |
if (nlines > 1) doc.remove(from.line + 1, nlines - 1); |
| 4447 |
doc.insert(from.line + 1, added); |
| 4448 |
} |
| 4449 |
|
| 4450 |
signalLater(doc, "change", doc, change); |
| 4451 |
setSelection(doc, selAfter.anchor, selAfter.head, null, true); |
| 4452 |
} |
| 4453 |
|
| 4454 |
function LeafChunk(lines) { |
| 4455 |
this.lines = lines; |
| 4456 |
this.parent = null; |
| 4457 |
for (var i = 0, e = lines.length, height = 0; i < e; ++i) { |
| 4458 |
lines[i].parent = this; |
| 4459 |
height += lines[i].height; |
| 4460 |
} |
| 4461 |
this.height = height; |
| 4462 |
} |
| 4463 |
|
| 4464 |
LeafChunk.prototype = { |
| 4465 |
chunkSize: function() { return this.lines.length; }, |
| 4466 |
removeInner: function(at, n) { |
| 4467 |
for (var i = at, e = at + n; i < e; ++i) { |
| 4468 |
var line = this.lines[i]; |
| 4469 |
this.height -= line.height; |
| 4470 |
cleanUpLine(line); |
| 4471 |
signalLater(line, "delete"); |
| 4472 |
} |
| 4473 |
this.lines.splice(at, n); |
| 4474 |
}, |
| 4475 |
collapse: function(lines) { |
| 4476 |
lines.splice.apply(lines, [lines.length, 0].concat(this.lines)); |
| 4477 |
}, |
| 4478 |
insertInner: function(at, lines, height) { |
| 4479 |
this.height += height; |
| 4480 |
this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at)); |
| 4481 |
for (var i = 0, e = lines.length; i < e; ++i) lines[i].parent = this; |
| 4482 |
}, |
| 4483 |
iterN: function(at, n, op) { |
| 4484 |
for (var e = at + n; at < e; ++at) |
| 4485 |
if (op(this.lines[at])) return true; |
| 4486 |
} |
| 4487 |
}; |
| 4488 |
|
| 4489 |
function BranchChunk(children) { |
| 4490 |
this.children = children; |
| 4491 |
var size = 0, height = 0; |
| 4492 |
for (var i = 0, e = children.length; i < e; ++i) { |
| 4493 |
var ch = children[i]; |
| 4494 |
size += ch.chunkSize(); height += ch.height; |
| 4495 |
ch.parent = this; |
| 4496 |
} |
| 4497 |
this.size = size; |
| 4498 |
this.height = height; |
| 4499 |
this.parent = null; |
| 4500 |
} |
| 4501 |
|
| 4502 |
BranchChunk.prototype = { |
| 4503 |
chunkSize: function() { return this.size; }, |
| 4504 |
removeInner: function(at, n) { |
| 4505 |
this.size -= n; |
| 4506 |
for (var i = 0; i < this.children.length; ++i) { |
| 4507 |
var child = this.children[i], sz = child.chunkSize(); |
| 4508 |
if (at < sz) { |
| 4509 |
var rm = Math.min(n, sz - at), oldHeight = child.height; |
| 4510 |
child.removeInner(at, rm); |
| 4511 |
this.height -= oldHeight - child.height; |
| 4512 |
if (sz == rm) { this.children.splice(i--, 1); child.parent = null; } |
| 4513 |
if ((n -= rm) == 0) break; |
| 4514 |
at = 0; |
| 4515 |
} else at -= sz; |
| 4516 |
} |
| 4517 |
if (this.size - n < 25) { |
| 4518 |
var lines = []; |
| 4519 |
this.collapse(lines); |
| 4520 |
this.children = [new LeafChunk(lines)]; |
| 4521 |
this.children[0].parent = this; |
| 4522 |
} |
| 4523 |
}, |
| 4524 |
collapse: function(lines) { |
| 4525 |
for (var i = 0, e = this.children.length; i < e; ++i) this.children[i].collapse(lines); |
| 4526 |
}, |
| 4527 |
insertInner: function(at, lines, height) { |
| 4528 |
this.size += lines.length; |
| 4529 |
this.height += height; |
| 4530 |
for (var i = 0, e = this.children.length; i < e; ++i) { |
| 4531 |
var child = this.children[i], sz = child.chunkSize(); |
| 4532 |
if (at <= sz) { |
| 4533 |
child.insertInner(at, lines, height); |
| 4534 |
if (child.lines && child.lines.length > 50) { |
| 4535 |
while (child.lines.length > 50) { |
| 4536 |
var spilled = child.lines.splice(child.lines.length - 25, 25); |
| 4537 |
var newleaf = new LeafChunk(spilled); |
| 4538 |
child.height -= newleaf.height; |
| 4539 |
this.children.splice(i + 1, 0, newleaf); |
| 4540 |
newleaf.parent = this; |
| 4541 |
} |
| 4542 |
this.maybeSpill(); |
| 4543 |
} |
| 4544 |
break; |
| 4545 |
} |
| 4546 |
at -= sz; |
| 4547 |
} |
| 4548 |
}, |
| 4549 |
maybeSpill: function() { |
| 4550 |
if (this.children.length <= 10) return; |
| 4551 |
var me = this; |
| 4552 |
do { |
| 4553 |
var spilled = me.children.splice(me.children.length - 5, 5); |
| 4554 |
var sibling = new BranchChunk(spilled); |
| 4555 |
if (!me.parent) { // Become the parent node |
| 4556 |
var copy = new BranchChunk(me.children); |
| 4557 |
copy.parent = me; |
| 4558 |
me.children = [copy, sibling]; |
| 4559 |
me = copy; |
| 4560 |
} else { |
| 4561 |
me.size -= sibling.size; |
| 4562 |
me.height -= sibling.height; |
| 4563 |
var myIndex = indexOf(me.parent.children, me); |
| 4564 |
me.parent.children.splice(myIndex + 1, 0, sibling); |
| 4565 |
} |
| 4566 |
sibling.parent = me.parent; |
| 4567 |
} while (me.children.length > 10); |
| 4568 |
me.parent.maybeSpill(); |
| 4569 |
}, |
| 4570 |
iterN: function(at, n, op) { |
| 4571 |
for (var i = 0, e = this.children.length; i < e; ++i) { |
| 4572 |
var child = this.children[i], sz = child.chunkSize(); |
| 4573 |
if (at < sz) { |
| 4574 |
var used = Math.min(n, sz - at); |
| 4575 |
if (child.iterN(at, used, op)) return true; |
| 4576 |
if ((n -= used) == 0) break; |
| 4577 |
at = 0; |
| 4578 |
} else at -= sz; |
| 4579 |
} |
| 4580 |
} |
| 4581 |
}; |
| 4582 |
|
| 4583 |
var nextDocId = 0; |
| 4584 |
var Doc = CodeMirror.Doc = function(text, mode, firstLine) { |
| 4585 |
if (!(this instanceof Doc)) return new Doc(text, mode, firstLine); |
| 4586 |
if (firstLine == null) firstLine = 0; |
| 4587 |
|
| 4588 |
BranchChunk.call(this, [new LeafChunk([makeLine("", null)])]); |
| 4589 |
this.first = firstLine; |
| 4590 |
this.scrollTop = this.scrollLeft = 0; |
| 4591 |
this.cantEdit = false; |
| 4592 |
this.history = makeHistory(); |
| 4593 |
this.cleanGeneration = 1; |
| 4594 |
this.frontier = firstLine; |
| 4595 |
var start = Pos(firstLine, 0); |
| 4596 |
this.sel = {from: start, to: start, head: start, anchor: start, shift: false, extend: false, goalColumn: null}; |
| 4597 |
this.id = ++nextDocId; |
| 4598 |
this.modeOption = mode; |
| 4599 |
|
| 4600 |
if (typeof text == "string") text = splitLines(text); |
| 4601 |
updateDoc(this, {from: start, to: start, text: text}, null, {head: start, anchor: start}); |
| 4602 |
}; |
| 4603 |
|
| 4604 |
Doc.prototype = createObj(BranchChunk.prototype, { |
| 4605 |
constructor: Doc, |
| 4606 |
iter: function(from, to, op) { |
| 4607 |
if (op) this.iterN(from - this.first, to - from, op); |
| 4608 |
else this.iterN(this.first, this.first + this.size, from); |
| 4609 |
}, |
| 4610 |
|
| 4611 |
insert: function(at, lines) { |
| 4612 |
var height = 0; |
| 4613 |
for (var i = 0, e = lines.length; i < e; ++i) height += lines[i].height; |
| 4614 |
this.insertInner(at - this.first, lines, height); |
| 4615 |
}, |
| 4616 |
remove: function(at, n) { this.removeInner(at - this.first, n); }, |
| 4617 |
|
| 4618 |
getValue: function(lineSep) { |
| 4619 |
var lines = getLines(this, this.first, this.first + this.size); |
| 4620 |
if (lineSep === false) return lines; |
| 4621 |
return lines.join(lineSep || "\n"); |
| 4622 |
}, |
| 4623 |
setValue: function(code) { |
| 4624 |
var top = Pos(this.first, 0), last = this.first + this.size - 1; |
| 4625 |
makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length), |
| 4626 |
text: splitLines(code), origin: "setValue"}, |
| 4627 |
{head: top, anchor: top}, true); |
| 4628 |
}, |
| 4629 |
replaceRange: function(code, from, to, origin) { |
| 4630 |
from = clipPos(this, from); |
| 4631 |
to = to ? clipPos(this, to) : from; |
| 4632 |
replaceRange(this, code, from, to, origin); |
| 4633 |
}, |
| 4634 |
getRange: function(from, to, lineSep) { |
| 4635 |
var lines = getBetween(this, clipPos(this, from), clipPos(this, to)); |
| 4636 |
if (lineSep === false) return lines; |
| 4637 |
return lines.join(lineSep || "\n"); |
| 4638 |
}, |
| 4639 |
|
| 4640 |
getLine: function(line) {var l = this.getLineHandle(line); return l && l.text;}, |
| 4641 |
setLine: function(line, text) { |
| 4642 |
if (isLine(this, line)) |
| 4643 |
replaceRange(this, text, Pos(line, 0), clipPos(this, Pos(line))); |
| 4644 |
}, |
| 4645 |
removeLine: function(line) { |
| 4646 |
if (line) replaceRange(this, "", clipPos(this, Pos(line - 1)), clipPos(this, Pos(line))); |
| 4647 |
else replaceRange(this, "", Pos(0, 0), clipPos(this, Pos(1, 0))); |
| 4648 |
}, |
| 4649 |
|
| 4650 |
getLineHandle: function(line) {if (isLine(this, line)) return getLine(this, line);}, |
| 4651 |
getLineNumber: function(line) {return lineNo(line);}, |
| 4652 |
|
| 4653 |
lineCount: function() {return this.size;}, |
| 4654 |
firstLine: function() {return this.first;}, |
| 4655 |
lastLine: function() {return this.first + this.size - 1;}, |
| 4656 |
|
| 4657 |
clipPos: function(pos) {return clipPos(this, pos);}, |
| 4658 |
|
| 4659 |
getCursor: function(start) { |
| 4660 |
var sel = this.sel, pos; |
| 4661 |
if (start == null || start == "head") pos = sel.head; |
| 4662 |
else if (start == "anchor") pos = sel.anchor; |
| 4663 |
else if (start == "end" || start === false) pos = sel.to; |
| 4664 |
else pos = sel.from; |
| 4665 |
return copyPos(pos); |
| 4666 |
}, |
| 4667 |
somethingSelected: function() {return !posEq(this.sel.head, this.sel.anchor);}, |
| 4668 |
|
| 4669 |
setCursor: docOperation(function(line, ch, extend) { |
| 4670 |
var pos = clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line); |
| 4671 |
if (extend) extendSelection(this, pos); |
| 4672 |
else setSelection(this, pos, pos); |
| 4673 |
}), |
| 4674 |
setSelection: docOperation(function(anchor, head) { |
| 4675 |
setSelection(this, clipPos(this, anchor), clipPos(this, head || anchor)); |
| 4676 |
}), |
| 4677 |
extendSelection: docOperation(function(from, to) { |
| 4678 |
extendSelection(this, clipPos(this, from), to && clipPos(this, to)); |
| 4679 |
}), |
| 4680 |
|
| 4681 |
getSelection: function(lineSep) {return this.getRange(this.sel.from, this.sel.to, lineSep);}, |
| 4682 |
replaceSelection: function(code, collapse, origin) { |
| 4683 |
makeChange(this, {from: this.sel.from, to: this.sel.to, text: splitLines(code), origin: origin}, collapse || "around"); |
| 4684 |
}, |
| 4685 |
undo: docOperation(function() {makeChangeFromHistory(this, "undo");}), |
| 4686 |
redo: docOperation(function() {makeChangeFromHistory(this, "redo");}), |
| 4687 |
|
| 4688 |
setExtending: function(val) {this.sel.extend = val;}, |
| 4689 |
|
| 4690 |
historySize: function() { |
| 4691 |
var hist = this.history; |
| 4692 |
return {undo: hist.done.length, redo: hist.undone.length}; |
| 4693 |
}, |
| 4694 |
clearHistory: function() {this.history = makeHistory(this.history.maxGeneration);}, |
| 4695 |
|
| 4696 |
markClean: function() { |
| 4697 |
this.cleanGeneration = this.changeGeneration(); |
| 4698 |
}, |
| 4699 |
changeGeneration: function() { |
| 4700 |
this.history.lastOp = this.history.lastOrigin = null; |
| 4701 |
return this.history.generation; |
| 4702 |
}, |
| 4703 |
isClean: function (gen) { |
| 4704 |
return this.history.generation == (gen || this.cleanGeneration); |
| 4705 |
}, |
| 4706 |
|
| 4707 |
getHistory: function() { |
| 4708 |
return {done: copyHistoryArray(this.history.done), |
| 4709 |
undone: copyHistoryArray(this.history.undone)}; |
| 4710 |
}, |
| 4711 |
setHistory: function(histData) { |
| 4712 |
var hist = this.history = makeHistory(this.history.maxGeneration); |
| 4713 |
hist.done = histData.done.slice(0); |
| 4714 |
hist.undone = histData.undone.slice(0); |
| 4715 |
}, |
| 4716 |
|
| 4717 |
markText: function(from, to, options) { |
| 4718 |
return markText(this, clipPos(this, from), clipPos(this, to), options, "range"); |
| 4719 |
}, |
| 4720 |
setBookmark: function(pos, options) { |
| 4721 |
var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options), |
| 4722 |
insertLeft: options && options.insertLeft}; |
| 4723 |
pos = clipPos(this, pos); |
| 4724 |
return markText(this, pos, pos, realOpts, "bookmark"); |
| 4725 |
}, |
| 4726 |
findMarksAt: function(pos) { |
| 4727 |
pos = clipPos(this, pos); |
| 4728 |
var markers = [], spans = getLine(this, pos.line).markedSpans; |
| 4729 |
if (spans) for (var i = 0; i < spans.length; ++i) { |
| 4730 |
var span = spans[i]; |
| 4731 |
if ((span.from == null || span.from <= pos.ch) && |
| 4732 |
(span.to == null || span.to >= pos.ch)) |
| 4733 |
markers.push(span.marker.parent || span.marker); |
| 4734 |
} |
| 4735 |
return markers; |
| 4736 |
}, |
| 4737 |
getAllMarks: function() { |
| 4738 |
var markers = []; |
| 4739 |
this.iter(function(line) { |
| 4740 |
var sps = line.markedSpans; |
| 4741 |
if (sps) for (var i = 0; i < sps.length; ++i) |
| 4742 |
if (sps[i].from != null) markers.push(sps[i].marker); |
| 4743 |
}); |
| 4744 |
return markers; |
| 4745 |
}, |
| 4746 |
|
| 4747 |
posFromIndex: function(off) { |
| 4748 |
var ch, lineNo = this.first; |
| 4749 |
this.iter(function(line) { |
| 4750 |
var sz = line.text.length + 1; |
| 4751 |
if (sz > off) { ch = off; return true; } |
| 4752 |
off -= sz; |
| 4753 |
++lineNo; |
| 4754 |
}); |
| 4755 |
return clipPos(this, Pos(lineNo, ch)); |
| 4756 |
}, |
| 4757 |
indexFromPos: function (coords) { |
| 4758 |
coords = clipPos(this, coords); |
| 4759 |
var index = coords.ch; |
| 4760 |
if (coords.line < this.first || coords.ch < 0) return 0; |
| 4761 |
this.iter(this.first, coords.line, function (line) { |
| 4762 |
index += line.text.length + 1; |
| 4763 |
}); |
| 4764 |
return index; |
| 4765 |
}, |
| 4766 |
|
| 4767 |
copy: function(copyHistory) { |
| 4768 |
var doc = new Doc(getLines(this, this.first, this.first + this.size), this.modeOption, this.first); |
| 4769 |
doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft; |
| 4770 |
doc.sel = {from: this.sel.from, to: this.sel.to, head: this.sel.head, anchor: this.sel.anchor, |
| 4771 |
shift: this.sel.shift, extend: false, goalColumn: this.sel.goalColumn}; |
| 4772 |
if (copyHistory) { |
| 4773 |
doc.history.undoDepth = this.history.undoDepth; |
| 4774 |
doc.setHistory(this.getHistory()); |
| 4775 |
} |
| 4776 |
return doc; |
| 4777 |
}, |
| 4778 |
|
| 4779 |
linkedDoc: function(options) { |
| 4780 |
if (!options) options = {}; |
| 4781 |
var from = this.first, to = this.first + this.size; |
| 4782 |
if (options.from != null && options.from > from) from = options.from; |
| 4783 |
if (options.to != null && options.to < to) to = options.to; |
| 4784 |
var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from); |
| 4785 |
if (options.sharedHist) copy.history = this.history; |
| 4786 |
(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist}); |
| 4787 |
copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}]; |
| 4788 |
return copy; |
| 4789 |
}, |
| 4790 |
unlinkDoc: function(other) { |
| 4791 |
if (other instanceof CodeMirror) other = other.doc; |
| 4792 |
if (this.linked) for (var i = 0; i < this.linked.length; ++i) { |
| 4793 |
var link = this.linked[i]; |
| 4794 |
if (link.doc != other) continue; |
| 4795 |
this.linked.splice(i, 1); |
| 4796 |
other.unlinkDoc(this); |
| 4797 |
break; |
| 4798 |
} |
| 4799 |
// If the histories were shared, split them again |
| 4800 |
if (other.history == this.history) { |
| 4801 |
var splitIds = [other.id]; |
| 4802 |
linkedDocs(other, function(doc) {splitIds.push(doc.id);}, true); |
| 4803 |
other.history = makeHistory(); |
| 4804 |
other.history.done = copyHistoryArray(this.history.done, splitIds); |
| 4805 |
other.history.undone = copyHistoryArray(this.history.undone, splitIds); |
| 4806 |
} |
| 4807 |
}, |
| 4808 |
iterLinkedDocs: function(f) {linkedDocs(this, f);}, |
| 4809 |
|
| 4810 |
getMode: function() {return this.mode;}, |
| 4811 |
getEditor: function() {return this.cm;} |
| 4812 |
}); |
| 4813 |
|
| 4814 |
Doc.prototype.eachLine = Doc.prototype.iter; |
| 4815 |
|
| 4816 |
// The Doc methods that should be available on CodeMirror instances |
| 4817 |
var dontDelegate = "iter insert remove copy getEditor".split(" "); |
| 4818 |
for (var prop in Doc.prototype) if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0) |
| 4819 |
CodeMirror.prototype[prop] = (function(method) { |
| 4820 |
return function() {return method.apply(this.doc, arguments);}; |
| 4821 |
})(Doc.prototype[prop]); |
| 4822 |
|
| 4823 |
function linkedDocs(doc, f, sharedHistOnly) { |
| 4824 |
function propagate(doc, skip, sharedHist) { |
| 4825 |
if (doc.linked) for (var i = 0; i < doc.linked.length; ++i) { |
| 4826 |
var rel = doc.linked[i]; |
| 4827 |
if (rel.doc == skip) continue; |
| 4828 |
var shared = sharedHist && rel.sharedHist; |
| 4829 |
if (sharedHistOnly && !shared) continue; |
| 4830 |
f(rel.doc, shared); |
| 4831 |
propagate(rel.doc, doc, shared); |
| 4832 |
} |
| 4833 |
} |
| 4834 |
propagate(doc, null, true); |
| 4835 |
} |
| 4836 |
|
| 4837 |
function attachDoc(cm, doc) { |
| 4838 |
if (doc.cm) throw new Error("This document is already in use."); |
| 4839 |
cm.doc = doc; |
| 4840 |
doc.cm = cm; |
| 4841 |
estimateLineHeights(cm); |
| 4842 |
loadMode(cm); |
| 4843 |
if (!cm.options.lineWrapping) computeMaxLength(cm); |
| 4844 |
cm.options.mode = doc.modeOption; |
| 4845 |
regChange(cm); |
| 4846 |
} |
| 4847 |
|
| 4848 |
// LINE UTILITIES |
| 4849 |
|
| 4850 |
function getLine(chunk, n) { |
| 4851 |
n -= chunk.first; |
| 4852 |
while (!chunk.lines) { |
| 4853 |
for (var i = 0;; ++i) { |
| 4854 |
var child = chunk.children[i], sz = child.chunkSize(); |
| 4855 |
if (n < sz) { chunk = child; break; } |
| 4856 |
n -= sz; |
| 4857 |
} |
| 4858 |
} |
| 4859 |
return chunk.lines[n]; |
| 4860 |
} |
| 4861 |
|
| 4862 |
function getBetween(doc, start, end) { |
| 4863 |
var out = [], n = start.line; |
| 4864 |
doc.iter(start.line, end.line + 1, function(line) { |
| 4865 |
var text = line.text; |
| 4866 |
if (n == end.line) text = text.slice(0, end.ch); |
| 4867 |
if (n == start.line) text = text.slice(start.ch); |
| 4868 |
out.push(text); |
| 4869 |
++n; |
| 4870 |
}); |
| 4871 |
return out; |
| 4872 |
} |
| 4873 |
function getLines(doc, from, to) { |
| 4874 |
var out = []; |
| 4875 |
doc.iter(from, to, function(line) { out.push(line.text); }); |
| 4876 |
return out; |
| 4877 |
} |
| 4878 |
|
| 4879 |
function updateLineHeight(line, height) { |
| 4880 |
var diff = height - line.height; |
| 4881 |
for (var n = line; n; n = n.parent) n.height += diff; |
| 4882 |
} |
| 4883 |
|
| 4884 |
function lineNo(line) { |
| 4885 |
if (line.parent == null) return null; |
| 4886 |
var cur = line.parent, no = indexOf(cur.lines, line); |
| 4887 |
for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) { |
| 4888 |
for (var i = 0;; ++i) { |
| 4889 |
if (chunk.children[i] == cur) break; |
| 4890 |
no += chunk.children[i].chunkSize(); |
| 4891 |
} |
| 4892 |
} |
| 4893 |
return no + cur.first; |
| 4894 |
} |
| 4895 |
|
| 4896 |
function lineAtHeight(chunk, h) { |
| 4897 |
var n = chunk.first; |
| 4898 |
outer: do { |
| 4899 |
for (var i = 0, e = chunk.children.length; i < e; ++i) { |
| 4900 |
var child = chunk.children[i], ch = child.height; |
| 4901 |
if (h < ch) { chunk = child; continue outer; } |
| 4902 |
h -= ch; |
| 4903 |
n += child.chunkSize(); |
| 4904 |
} |
| 4905 |
return n; |
| 4906 |
} while (!chunk.lines); |
| 4907 |
for (var i = 0, e = chunk.lines.length; i < e; ++i) { |
| 4908 |
var line = chunk.lines[i], lh = line.height; |
| 4909 |
if (h < lh) break; |
| 4910 |
h -= lh; |
| 4911 |
} |
| 4912 |
return n + i; |
| 4913 |
} |
| 4914 |
|
| 4915 |
function heightAtLine(cm, lineObj) { |
| 4916 |
lineObj = visualLine(cm.doc, lineObj); |
| 4917 |
|
| 4918 |
var h = 0, chunk = lineObj.parent; |
| 4919 |
for (var i = 0; i < chunk.lines.length; ++i) { |
| 4920 |
var line = chunk.lines[i]; |
| 4921 |
if (line == lineObj) break; |
| 4922 |
else h += line.height; |
| 4923 |
} |
| 4924 |
for (var p = chunk.parent; p; chunk = p, p = chunk.parent) { |
| 4925 |
for (var i = 0; i < p.children.length; ++i) { |
| 4926 |
var cur = p.children[i]; |
| 4927 |
if (cur == chunk) break; |
| 4928 |
else h += cur.height; |
| 4929 |
} |
| 4930 |
} |
| 4931 |
return h; |
| 4932 |
} |
| 4933 |
|
| 4934 |
function getOrder(line) { |
| 4935 |
var order = line.order; |
| 4936 |
if (order == null) order = line.order = bidiOrdering(line.text); |
| 4937 |
return order; |
| 4938 |
} |
| 4939 |
|
| 4940 |
// HISTORY |
| 4941 |
|
| 4942 |
function makeHistory(startGen) { |
| 4943 |
return { |
| 4944 |
// Arrays of history events. Doing something adds an event to |
| 4945 |
// done and clears undo. Undoing moves events from done to |
| 4946 |
// undone, redoing moves them in the other direction. |
| 4947 |
done: [], undone: [], undoDepth: Infinity, |
| 4948 |
// Used to track when changes can be merged into a single undo |
| 4949 |
// event |
| 4950 |
lastTime: 0, lastOp: null, lastOrigin: null, |
| 4951 |
// Used by the isClean() method |
| 4952 |
generation: startGen || 1, maxGeneration: startGen || 1 |
| 4953 |
}; |
| 4954 |
} |
| 4955 |
|
| 4956 |
function attachLocalSpans(doc, change, from, to) { |
| 4957 |
var existing = change["spans_" + doc.id], n = 0; |
| 4958 |
doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function(line) { |
| 4959 |
if (line.markedSpans) |
| 4960 |
(existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans; |
| 4961 |
++n; |
| 4962 |
}); |
| 4963 |
} |
| 4964 |
|
| 4965 |
function historyChangeFromChange(doc, change) { |
| 4966 |
var histChange = {from: change.from, to: changeEnd(change), text: getBetween(doc, change.from, change.to)}; |
| 4967 |
attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); |
| 4968 |
linkedDocs(doc, function(doc) {attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);}, true); |
| 4969 |
return histChange; |
| 4970 |
} |
| 4971 |
|
| 4972 |
function addToHistory(doc, change, selAfter, opId) { |
| 4973 |
var hist = doc.history; |
| 4974 |
hist.undone.length = 0; |
| 4975 |
var time = +new Date, cur = lst(hist.done); |
| 4976 |
|
| 4977 |
if (cur && |
| 4978 |
(hist.lastOp == opId || |
| 4979 |
hist.lastOrigin == change.origin && change.origin && |
| 4980 |
((change.origin.charAt(0) == "+" && doc.cm && hist.lastTime > time - doc.cm.options.historyEventDelay) || |
| 4981 |
change.origin.charAt(0) == "*"))) { |
| 4982 |
// Merge this change into the last event |
| 4983 |
var last = lst(cur.changes); |
| 4984 |
if (posEq(change.from, change.to) && posEq(change.from, last.to)) { |
| 4985 |
// Optimized case for simple insertion -- don't want to add |
| 4986 |
// new changesets for every character typed |
| 4987 |
last.to = changeEnd(change); |
| 4988 |
} else { |
| 4989 |
// Add new sub-event |
| 4990 |
cur.changes.push(historyChangeFromChange(doc, change)); |
| 4991 |
} |
| 4992 |
cur.anchorAfter = selAfter.anchor; cur.headAfter = selAfter.head; |
| 4993 |
} else { |
| 4994 |
// Can not be merged, start a new event. |
| 4995 |
cur = {changes: [historyChangeFromChange(doc, change)], |
| 4996 |
generation: hist.generation, |
| 4997 |
anchorBefore: doc.sel.anchor, headBefore: doc.sel.head, |
| 4998 |
anchorAfter: selAfter.anchor, headAfter: selAfter.head}; |
| 4999 |
hist.done.push(cur); |
| 5000 |
hist.generation = ++hist.maxGeneration; |
| 5001 |
while (hist.done.length > hist.undoDepth) |
| 5002 |
hist.done.shift(); |
| 5003 |
} |
| 5004 |
hist.lastTime = time; |
| 5005 |
hist.lastOp = opId; |
| 5006 |
hist.lastOrigin = change.origin; |
| 5007 |
} |
| 5008 |
|
| 5009 |
function removeClearedSpans(spans) { |
| 5010 |
if (!spans) return null; |
| 5011 |
for (var i = 0, out; i < spans.length; ++i) { |
| 5012 |
if (spans[i].marker.explicitlyCleared) { if (!out) out = spans.slice(0, i); } |
| 5013 |
else if (out) out.push(spans[i]); |
| 5014 |
} |
| 5015 |
return !out ? spans : out.length ? out : null; |
| 5016 |
} |
| 5017 |
|
| 5018 |
function getOldSpans(doc, change) { |
| 5019 |
var found = change["spans_" + doc.id]; |
| 5020 |
if (!found) return null; |
| 5021 |
for (var i = 0, nw = []; i < change.text.length; ++i) |
| 5022 |
nw.push(removeClearedSpans(found[i])); |
| 5023 |
return nw; |
| 5024 |
} |
| 5025 |
|
| 5026 |
// Used both to provide a JSON-safe object in .getHistory, and, when |
| 5027 |
// detaching a document, to split the history in two |
| 5028 |
function copyHistoryArray(events, newGroup) { |
| 5029 |
for (var i = 0, copy = []; i < events.length; ++i) { |
| 5030 |
var event = events[i], changes = event.changes, newChanges = []; |
| 5031 |
copy.push({changes: newChanges, anchorBefore: event.anchorBefore, headBefore: event.headBefore, |
| 5032 |
anchorAfter: event.anchorAfter, headAfter: event.headAfter}); |
| 5033 |
for (var j = 0; j < changes.length; ++j) { |
| 5034 |
var change = changes[j], m; |
| 5035 |
newChanges.push({from: change.from, to: change.to, text: change.text}); |
| 5036 |
if (newGroup) for (var prop in change) if (m = prop.match(/^spans_(\d+)$/)) { |
| 5037 |
if (indexOf(newGroup, Number(m[1])) > -1) { |
| 5038 |
lst(newChanges)[prop] = change[prop]; |
| 5039 |
delete change[prop]; |
| 5040 |
} |
| 5041 |
} |
| 5042 |
} |
| 5043 |
} |
| 5044 |
return copy; |
| 5045 |
} |
| 5046 |
|
| 5047 |
// Rebasing/resetting history to deal with externally-sourced changes |
| 5048 |
|
| 5049 |
function rebaseHistSel(pos, from, to, diff) { |
| 5050 |
if (to < pos.line) { |
| 5051 |
pos.line += diff; |
| 5052 |
} else if (from < pos.line) { |
| 5053 |
pos.line = from; |
| 5054 |
pos.ch = 0; |
| 5055 |
} |
| 5056 |
} |
| 5057 |
|
| 5058 |
// Tries to rebase an array of history events given a change in the |
| 5059 |
// document. If the change touches the same lines as the event, the |
| 5060 |
// event, and everything 'behind' it, is discarded. If the change is |
| 5061 |
// before the event, the event's positions are updated. Uses a |
| 5062 |
// copy-on-write scheme for the positions, to avoid having to |
| 5063 |
// reallocate them all on every rebase, but also avoid problems with |
| 5064 |
// shared position objects being unsafely updated. |
| 5065 |
function rebaseHistArray(array, from, to, diff) { |
| 5066 |
for (var i = 0; i < array.length; ++i) { |
| 5067 |
var sub = array[i], ok = true; |
| 5068 |
for (var j = 0; j < sub.changes.length; ++j) { |
| 5069 |
var cur = sub.changes[j]; |
| 5070 |
if (!sub.copied) { cur.from = copyPos(cur.from); cur.to = copyPos(cur.to); } |
| 5071 |
if (to < cur.from.line) { |
| 5072 |
cur.from.line += diff; |
| 5073 |
cur.to.line += diff; |
| 5074 |
} else if (from <= cur.to.line) { |
| 5075 |
ok = false; |
| 5076 |
break; |
| 5077 |
} |
| 5078 |
} |
| 5079 |
if (!sub.copied) { |
| 5080 |
sub.anchorBefore = copyPos(sub.anchorBefore); sub.headBefore = copyPos(sub.headBefore); |
| 5081 |
sub.anchorAfter = copyPos(sub.anchorAfter); sub.readAfter = copyPos(sub.headAfter); |
| 5082 |
sub.copied = true; |
| 5083 |
} |
| 5084 |
if (!ok) { |
| 5085 |
array.splice(0, i + 1); |
| 5086 |
i = 0; |
| 5087 |
} else { |
| 5088 |
rebaseHistSel(sub.anchorBefore); rebaseHistSel(sub.headBefore); |
| 5089 |
rebaseHistSel(sub.anchorAfter); rebaseHistSel(sub.headAfter); |
| 5090 |
} |
| 5091 |
} |
| 5092 |
} |
| 5093 |
|
| 5094 |
function rebaseHist(hist, change) { |
| 5095 |
var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1; |
| 5096 |
rebaseHistArray(hist.done, from, to, diff); |
| 5097 |
rebaseHistArray(hist.undone, from, to, diff); |
| 5098 |
} |
| 5099 |
|
| 5100 |
// EVENT OPERATORS |
| 5101 |
|
| 5102 |
function stopMethod() {e_stop(this);} |
| 5103 |
// Ensure an event has a stop method. |
| 5104 |
function addStop(event) { |
| 5105 |
if (!event.stop) event.stop = stopMethod; |
| 5106 |
return event; |
| 5107 |
} |
| 5108 |
|
| 5109 |
function e_preventDefault(e) { |
| 5110 |
if (e.preventDefault) e.preventDefault(); |
| 5111 |
else e.returnValue = false; |
| 5112 |
} |
| 5113 |
function e_stopPropagation(e) { |
| 5114 |
if (e.stopPropagation) e.stopPropagation(); |
| 5115 |
else e.cancelBubble = true; |
| 5116 |
} |
| 5117 |
function e_defaultPrevented(e) { |
| 5118 |
return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false; |
| 5119 |
} |
| 5120 |
function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);} |
| 5121 |
CodeMirror.e_stop = e_stop; |
| 5122 |
CodeMirror.e_preventDefault = e_preventDefault; |
| 5123 |
CodeMirror.e_stopPropagation = e_stopPropagation; |
| 5124 |
|
| 5125 |
function e_target(e) {return e.target || e.srcElement;} |
| 5126 |
function e_button(e) { |
| 5127 |
var b = e.which; |
| 5128 |
if (b == null) { |
| 5129 |
if (e.button & 1) b = 1; |
| 5130 |
else if (e.button & 2) b = 3; |
| 5131 |
else if (e.button & 4) b = 2; |
| 5132 |
} |
| 5133 |
if (mac && e.ctrlKey && b == 1) b = 3; |
| 5134 |
return b; |
| 5135 |
} |
| 5136 |
|
| 5137 |
// EVENT HANDLING |
| 5138 |
|
| 5139 |
function on(emitter, type, f) { |
| 5140 |
if (emitter.addEventListener) |
| 5141 |
emitter.addEventListener(type, f, false); |
| 5142 |
else if (emitter.attachEvent) |
| 5143 |
emitter.attachEvent("on" + type, f); |
| 5144 |
else { |
| 5145 |
var map = emitter._handlers || (emitter._handlers = {}); |
| 5146 |
var arr = map[type] || (map[type] = []); |
| 5147 |
arr.push(f); |
| 5148 |
} |
| 5149 |
} |
| 5150 |
|
| 5151 |
function off(emitter, type, f) { |
| 5152 |
if (emitter.removeEventListener) |
| 5153 |
emitter.removeEventListener(type, f, false); |
| 5154 |
else if (emitter.detachEvent) |
| 5155 |
emitter.detachEvent("on" + type, f); |
| 5156 |
else { |
| 5157 |
var arr = emitter._handlers && emitter._handlers[type]; |
| 5158 |
if (!arr) return; |
| 5159 |
for (var i = 0; i < arr.length; ++i) |
| 5160 |
if (arr[i] == f) { arr.splice(i, 1); break; } |
| 5161 |
} |
| 5162 |
} |
| 5163 |
|
| 5164 |
function signal(emitter, type /*, values...*/) { |
| 5165 |
var arr = emitter._handlers && emitter._handlers[type]; |
| 5166 |
if (!arr) return; |
| 5167 |
var args = Array.prototype.slice.call(arguments, 2); |
| 5168 |
for (var i = 0; i < arr.length; ++i) arr[i].apply(null, args); |
| 5169 |
} |
| 5170 |
|
| 5171 |
var delayedCallbacks, delayedCallbackDepth = 0; |
| 5172 |
function signalLater(emitter, type /*, values...*/) { |
| 5173 |
var arr = emitter._handlers && emitter._handlers[type]; |
| 5174 |
if (!arr) return; |
| 5175 |
var args = Array.prototype.slice.call(arguments, 2); |
| 5176 |
if (!delayedCallbacks) { |
| 5177 |
++delayedCallbackDepth; |
| 5178 |
delayedCallbacks = []; |
| 5179 |
setTimeout(fireDelayed, 0); |
| 5180 |
} |
| 5181 |
function bnd(f) {return function(){f.apply(null, args);};}; |
| 5182 |
for (var i = 0; i < arr.length; ++i) |
| 5183 |
delayedCallbacks.push(bnd(arr[i])); |
| 5184 |
} |
| 5185 |
|
| 5186 |
function signalDOMEvent(cm, e) { |
| 5187 |
signal(cm, e.type, cm, e); |
| 5188 |
return e_defaultPrevented(e); |
| 5189 |
} |
| 5190 |
|
| 5191 |
function fireDelayed() { |
| 5192 |
--delayedCallbackDepth; |
| 5193 |
var delayed = delayedCallbacks; |
| 5194 |
delayedCallbacks = null; |
| 5195 |
for (var i = 0; i < delayed.length; ++i) delayed[i](); |
| 5196 |
} |
| 5197 |
|
| 5198 |
function hasHandler(emitter, type) { |
| 5199 |
var arr = emitter._handlers && emitter._handlers[type]; |
| 5200 |
return arr && arr.length > 0; |
| 5201 |
} |
| 5202 |
|
| 5203 |
CodeMirror.on = on; CodeMirror.off = off; CodeMirror.signal = signal; |
| 5204 |
|
| 5205 |
// MISC UTILITIES |
| 5206 |
|
| 5207 |
// Number of pixels added to scroller and sizer to hide scrollbar |
| 5208 |
var scrollerCutOff = 30; |
| 5209 |
|
| 5210 |
// Returned or thrown by various protocols to signal 'I'm not |
| 5211 |
// handling this'. |
| 5212 |
var Pass = CodeMirror.Pass = {toString: function(){return "CodeMirror.Pass";}}; |
| 5213 |
|
| 5214 |
function Delayed() {this.id = null;} |
| 5215 |
Delayed.prototype = {set: function(ms, f) {clearTimeout(this.id); this.id = setTimeout(f, ms);}}; |
| 5216 |
|
| 5217 |
// Counts the column offset in a string, taking tabs into account. |
| 5218 |
// Used mostly to find indentation. |
| 5219 |
function countColumn(string, end, tabSize, startIndex, startValue) { |
| 5220 |
if (end == null) { |
| 5221 |
end = string.search(/[^\s\u00a0]/); |
| 5222 |
if (end == -1) end = string.length; |
| 5223 |
} |
| 5224 |
for (var i = startIndex || 0, n = startValue || 0; i < end; ++i) { |
| 5225 |
if (string.charAt(i) == "\t") n += tabSize - (n % tabSize); |
| 5226 |
else ++n; |
| 5227 |
} |
| 5228 |
return n; |
| 5229 |
} |
| 5230 |
CodeMirror.countColumn = countColumn; |
| 5231 |
|
| 5232 |
var spaceStrs = [""]; |
| 5233 |
function spaceStr(n) { |
| 5234 |
while (spaceStrs.length <= n) |
| 5235 |
spaceStrs.push(lst(spaceStrs) + " "); |
| 5236 |
return spaceStrs[n]; |
| 5237 |
} |
| 5238 |
|
| 5239 |
function lst(arr) { return arr[arr.length-1]; } |
| 5240 |
|
| 5241 |
function selectInput(node) { |
| 5242 |
if (ios) { // Mobile Safari apparently has a bug where select() is broken. |
| 5243 |
node.selectionStart = 0; |
| 5244 |
node.selectionEnd = node.value.length; |
| 5245 |
} else { |
| 5246 |
// Suppress mysterious IE10 errors |
| 5247 |
try { node.select(); } |
| 5248 |
catch(_e) {} |
| 5249 |
} |
| 5250 |
} |
| 5251 |
|
| 5252 |
function indexOf(collection, elt) { |
| 5253 |
if (collection.indexOf) return collection.indexOf(elt); |
| 5254 |
for (var i = 0, e = collection.length; i < e; ++i) |
| 5255 |
if (collection[i] == elt) return i; |
| 5256 |
return -1; |
| 5257 |
} |
| 5258 |
|
| 5259 |
function createObj(base, props) { |
| 5260 |
function Obj() {} |
| 5261 |
Obj.prototype = base; |
| 5262 |
var inst = new Obj(); |
| 5263 |
if (props) copyObj(props, inst); |
| 5264 |
return inst; |
| 5265 |
} |
| 5266 |
|
| 5267 |
function copyObj(obj, target) { |
| 5268 |
if (!target) target = {}; |
| 5269 |
for (var prop in obj) if (obj.hasOwnProperty(prop)) target[prop] = obj[prop]; |
| 5270 |
return target; |
| 5271 |
} |
| 5272 |
|
| 5273 |
function emptyArray(size) { |
| 5274 |
for (var a = [], i = 0; i < size; ++i) a.push(undefined); |
| 5275 |
return a; |
| 5276 |
} |
| 5277 |
|
| 5278 |
function bind(f) { |
| 5279 |
var args = Array.prototype.slice.call(arguments, 1); |
| 5280 |
return function(){return f.apply(null, args);}; |
| 5281 |
} |
| 5282 |
|
| 5283 |
var nonASCIISingleCaseWordChar = /[\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/; |
| 5284 |
function isWordChar(ch) { |
| 5285 |
return /\w/.test(ch) || ch > "\x80" && |
| 5286 |
(ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch)); |
| 5287 |
} |
| 5288 |
|
| 5289 |
function isEmpty(obj) { |
| 5290 |
for (var n in obj) if (obj.hasOwnProperty(n) && obj[n]) return false; |
| 5291 |
return true; |
| 5292 |
} |
| 5293 |
|
| 5294 |
var isExtendingChar = /[\u0300-\u036F\u0483-\u0487\u0488-\u0489\u0591-\u05BD\u05BF\u05C1-\u05C2\u05C4-\u05C5\u05C7\u0610-\u061A\u064B-\u065F\u0670\u06D6-\u06DC\u06DF-\u06E4\u06E7-\u06E8\u06EA-\u06ED\uA66F\uA670-\uA672\uA674-\uA67D\uA69F\udc00-\udfff]/; |
| 5295 |
|
| 5296 |
// DOM UTILITIES |
| 5297 |
|
| 5298 |
function elt(tag, content, className, style) { |
| 5299 |
var e = document.createElement(tag); |
| 5300 |
if (className) e.className = className; |
| 5301 |
if (style) e.style.cssText = style; |
| 5302 |
if (typeof content == "string") setTextContent(e, content); |
| 5303 |
else if (content) for (var i = 0; i < content.length; ++i) e.appendChild(content[i]); |
| 5304 |
return e; |
| 5305 |
} |
| 5306 |
|
| 5307 |
function removeChildren(e) { |
| 5308 |
for (var count = e.childNodes.length; count > 0; --count) |
| 5309 |
e.removeChild(e.firstChild); |
| 5310 |
return e; |
| 5311 |
} |
| 5312 |
|
| 5313 |
function removeChildrenAndAdd(parent, e) { |
| 5314 |
return removeChildren(parent).appendChild(e); |
| 5315 |
} |
| 5316 |
|
| 5317 |
function setTextContent(e, str) { |
| 5318 |
if (ie_lt9) { |
| 5319 |
e.innerHTML = ""; |
| 5320 |
e.appendChild(document.createTextNode(str)); |
| 5321 |
} else e.textContent = str; |
| 5322 |
} |
| 5323 |
|
| 5324 |
function getRect(node) { |
| 5325 |
return node.getBoundingClientRect(); |
| 5326 |
} |
| 5327 |
CodeMirror.replaceGetRect = function(f) { getRect = f; }; |
| 5328 |
|
| 5329 |
// FEATURE DETECTION |
| 5330 |
|
| 5331 |
// Detect drag-and-drop |
| 5332 |
var dragAndDrop = function() { |
| 5333 |
// There is *some* kind of drag-and-drop support in IE6-8, but I |
| 5334 |
// couldn't get it to work yet. |
| 5335 |
if (ie_lt9) return false; |
| 5336 |
var div = elt('div'); |
| 5337 |
return "draggable" in div || "dragDrop" in div; |
| 5338 |
}(); |
| 5339 |
|
| 5340 |
// For a reason I have yet to figure out, some browsers disallow |
| 5341 |
// word wrapping between certain characters *only* if a new inline |
| 5342 |
// element is started between them. This makes it hard to reliably |
| 5343 |
// measure the position of things, since that requires inserting an |
| 5344 |
// extra span. This terribly fragile set of tests matches the |
| 5345 |
// character combinations that suffer from this phenomenon on the |
| 5346 |
// various browsers. |
| 5347 |
function spanAffectsWrapping() { return false; } |
| 5348 |
if (gecko) // Only for "$'" |
| 5349 |
spanAffectsWrapping = function(str, i) { |
| 5350 |
return str.charCodeAt(i - 1) == 36 && str.charCodeAt(i) == 39; |
| 5351 |
}; |
| 5352 |
else if (safari && !/Version\/([6-9]|\d\d)\b/.test(navigator.userAgent)) |
| 5353 |
spanAffectsWrapping = function(str, i) { |
| 5354 |
return /\-[^ \-?]|\?[^ !\'\"\),.\-\/:;\?\]\}]/.test(str.slice(i - 1, i + 1)); |
| 5355 |
}; |
| 5356 |
else if (webkit) |
| 5357 |
spanAffectsWrapping = function(str, i) { |
| 5358 |
if (i > 1 && str.charCodeAt(i - 1) == 45 && /\w/.test(str.charAt(i - 2)) && /[^\-?\.]/.test(str.charAt(i))) |
| 5359 |
return true; |
| 5360 |
return /[~!#%&*)=+}\]|\"\.>,:;][({[<]|-[^\-?\.\u2010-\u201f\u2026]|\?[\w~`@#$%\^&*(_=+{[|><]|…[\w~`@#$%\^&*(_=+{[><]/.test(str.slice(i - 1, i + 1)); |
| 5361 |
}; |
| 5362 |
|
| 5363 |
var knownScrollbarWidth; |
| 5364 |
function scrollbarWidth(measure) { |
| 5365 |
if (knownScrollbarWidth != null) return knownScrollbarWidth; |
| 5366 |
var test = elt("div", null, null, "width: 50px; height: 50px; overflow-x: scroll"); |
| 5367 |
removeChildrenAndAdd(measure, test); |
| 5368 |
if (test.offsetWidth) |
| 5369 |
knownScrollbarWidth = test.offsetHeight - test.clientHeight; |
| 5370 |
return knownScrollbarWidth || 0; |
| 5371 |
} |
| 5372 |
|
| 5373 |
var zwspSupported; |
| 5374 |
function zeroWidthElement(measure) { |
| 5375 |
if (zwspSupported == null) { |
| 5376 |
var test = elt("span", "\u200b"); |
| 5377 |
removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")])); |
| 5378 |
if (measure.firstChild.offsetHeight != 0) |
| 5379 |
zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !ie_lt8; |
| 5380 |
} |
| 5381 |
if (zwspSupported) return elt("span", "\u200b"); |
| 5382 |
else return elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px"); |
| 5383 |
} |
| 5384 |
|
| 5385 |
// See if "".split is the broken IE version, if so, provide an |
| 5386 |
// alternative way to split lines. |
| 5387 |
var splitLines = "\n\nb".split(/\n/).length != 3 ? function(string) { |
| 5388 |
var pos = 0, result = [], l = string.length; |
| 5389 |
while (pos <= l) { |
| 5390 |
var nl = string.indexOf("\n", pos); |
| 5391 |
if (nl == -1) nl = string.length; |
| 5392 |
var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl); |
| 5393 |
var rt = line.indexOf("\r"); |
| 5394 |
if (rt != -1) { |
| 5395 |
result.push(line.slice(0, rt)); |
| 5396 |
pos += rt + 1; |
| 5397 |
} else { |
| 5398 |
result.push(line); |
| 5399 |
pos = nl + 1; |
| 5400 |
} |
| 5401 |
} |
| 5402 |
return result; |
| 5403 |
} : function(string){return string.split(/\r\n?|\n/);}; |
| 5404 |
CodeMirror.splitLines = splitLines; |
| 5405 |
|
| 5406 |
var hasSelection = window.getSelection ? function(te) { |
| 5407 |
try { return te.selectionStart != te.selectionEnd; } |
| 5408 |
catch(e) { return false; } |
| 5409 |
} : function(te) { |
| 5410 |
try {var range = te.ownerDocument.selection.createRange();} |
| 5411 |
catch(e) {} |
| 5412 |
if (!range || range.parentElement() != te) return false; |
| 5413 |
return range.compareEndPoints("StartToEnd", range) != 0; |
| 5414 |
}; |
| 5415 |
|
| 5416 |
var hasCopyEvent = (function() { |
| 5417 |
var e = elt("div"); |
| 5418 |
if ("oncopy" in e) return true; |
| 5419 |
e.setAttribute("oncopy", "return;"); |
| 5420 |
return typeof e.oncopy == 'function'; |
| 5421 |
})(); |
| 5422 |
|
| 5423 |
// KEY NAMING |
| 5424 |
|
| 5425 |
var keyNames = {3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt", |
| 5426 |
19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End", |
| 5427 |
36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert", |
| 5428 |
46: "Delete", 59: ";", 91: "Mod", 92: "Mod", 93: "Mod", 109: "-", 107: "=", 127: "Delete", |
| 5429 |
186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\", |
| 5430 |
221: "]", 222: "'", 63276: "PageUp", 63277: "PageDown", 63275: "End", 63273: "Home", |
| 5431 |
63234: "Left", 63232: "Up", 63235: "Right", 63233: "Down", 63302: "Insert", 63272: "Delete"}; |
| 5432 |
CodeMirror.keyNames = keyNames; |
| 5433 |
(function() { |
| 5434 |
// Number keys |
| 5435 |
for (var i = 0; i < 10; i++) keyNames[i + 48] = String(i); |
| 5436 |
// Alphabetic keys |
| 5437 |
for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i); |
| 5438 |
// Function keys |
| 5439 |
for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i; |
| 5440 |
})(); |
| 5441 |
|
| 5442 |
// BIDI HELPERS |
| 5443 |
|
| 5444 |
function iterateBidiSections(order, from, to, f) { |
| 5445 |
if (!order) return f(from, to, "ltr"); |
| 5446 |
for (var i = 0; i < order.length; ++i) { |
| 5447 |
var part = order[i]; |
| 5448 |
if (part.from < to && part.to > from || from == to && part.to == from) |
| 5449 |
f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr"); |
| 5450 |
} |
| 5451 |
} |
| 5452 |
|
| 5453 |
function bidiLeft(part) { return part.level % 2 ? part.to : part.from; } |
| 5454 |
function bidiRight(part) { return part.level % 2 ? part.from : part.to; } |
| 5455 |
|
| 5456 |
function lineLeft(line) { var order = getOrder(line); return order ? bidiLeft(order[0]) : 0; } |
| 5457 |
function lineRight(line) { |
| 5458 |
var order = getOrder(line); |
| 5459 |
if (!order) return line.text.length; |
| 5460 |
return bidiRight(lst(order)); |
| 5461 |
} |
| 5462 |
|
| 5463 |
function lineStart(cm, lineN) { |
| 5464 |
var line = getLine(cm.doc, lineN); |
| 5465 |
var visual = visualLine(cm.doc, line); |
| 5466 |
if (visual != line) lineN = lineNo(visual); |
| 5467 |
var order = getOrder(visual); |
| 5468 |
var ch = !order ? 0 : order[0].level % 2 ? lineRight(visual) : lineLeft(visual); |
| 5469 |
return Pos(lineN, ch); |
| 5470 |
} |
| 5471 |
function lineEnd(cm, lineN) { |
| 5472 |
var merged, line; |
| 5473 |
while (merged = collapsedSpanAtEnd(line = getLine(cm.doc, lineN))) |
| 5474 |
lineN = merged.find().to.line; |
| 5475 |
var order = getOrder(line); |
| 5476 |
var ch = !order ? line.text.length : order[0].level % 2 ? lineLeft(line) : lineRight(line); |
| 5477 |
return Pos(lineN, ch); |
| 5478 |
} |
| 5479 |
|
| 5480 |
function compareBidiLevel(order, a, b) { |
| 5481 |
var linedir = order[0].level; |
| 5482 |
if (a == linedir) return true; |
| 5483 |
if (b == linedir) return false; |
| 5484 |
return a < b; |
| 5485 |
} |
| 5486 |
var bidiOther; |
| 5487 |
function getBidiPartAt(order, pos) { |
| 5488 |
for (var i = 0, found; i < order.length; ++i) { |
| 5489 |
var cur = order[i]; |
| 5490 |
if (cur.from < pos && cur.to > pos) { bidiOther = null; return i; } |
| 5491 |
if (cur.from == pos || cur.to == pos) { |
| 5492 |
if (found == null) { |
| 5493 |
found = i; |
| 5494 |
} else if (compareBidiLevel(order, cur.level, order[found].level)) { |
| 5495 |
bidiOther = found; |
| 5496 |
return i; |
| 5497 |
} else { |
| 5498 |
bidiOther = i; |
| 5499 |
return found; |
| 5500 |
} |
| 5501 |
} |
| 5502 |
} |
| 5503 |
bidiOther = null; |
| 5504 |
return found; |
| 5505 |
} |
| 5506 |
|
| 5507 |
function moveInLine(line, pos, dir, byUnit) { |
| 5508 |
if (!byUnit) return pos + dir; |
| 5509 |
do pos += dir; |
| 5510 |
while (pos > 0 && isExtendingChar.test(line.text.charAt(pos))); |
| 5511 |
return pos; |
| 5512 |
} |
| 5513 |
|
| 5514 |
// This is somewhat involved. It is needed in order to move |
| 5515 |
// 'visually' through bi-directional text -- i.e., pressing left |
| 5516 |
// should make the cursor go left, even when in RTL text. The |
| 5517 |
// tricky part is the 'jumps', where RTL and LTR text touch each |
| 5518 |
// other. This often requires the cursor offset to move more than |
| 5519 |
// one unit, in order to visually move one unit. |
| 5520 |
function moveVisually(line, start, dir, byUnit) { |
| 5521 |
var bidi = getOrder(line); |
| 5522 |
if (!bidi) return moveLogically(line, start, dir, byUnit); |
| 5523 |
var pos = getBidiPartAt(bidi, start), part = bidi[pos]; |
| 5524 |
var target = moveInLine(line, start, part.level % 2 ? -dir : dir, byUnit); |
| 5525 |
|
| 5526 |
for (;;) { |
| 5527 |
if (target > part.from && target < part.to) return target; |
| 5528 |
if (target == part.from || target == part.to) { |
| 5529 |
if (getBidiPartAt(bidi, target) == pos) return target; |
| 5530 |
part = bidi[pos += dir]; |
| 5531 |
return (dir > 0) == part.level % 2 ? part.to : part.from; |
| 5532 |
} else { |
| 5533 |
part = bidi[pos += dir]; |
| 5534 |
if (!part) return null; |
| 5535 |
if ((dir > 0) == part.level % 2) |
| 5536 |
target = moveInLine(line, part.to, -1, byUnit); |
| 5537 |
else |
| 5538 |
target = moveInLine(line, part.from, 1, byUnit); |
| 5539 |
} |
| 5540 |
} |
| 5541 |
} |
| 5542 |
|
| 5543 |
function moveLogically(line, start, dir, byUnit) { |
| 5544 |
var target = start + dir; |
| 5545 |
if (byUnit) while (target > 0 && isExtendingChar.test(line.text.charAt(target))) target += dir; |
| 5546 |
return target < 0 || target > line.text.length ? null : target; |
| 5547 |
} |
| 5548 |
|
| 5549 |
// Bidirectional ordering algorithm |
| 5550 |
// See http://unicode.org/reports/tr9/tr9-13.html for the algorithm |
| 5551 |
// that this (partially) implements. |
| 5552 |
|
| 5553 |
// One-char codes used for character types: |
| 5554 |
// L (L): Left-to-Right |
| 5555 |
// R (R): Right-to-Left |
| 5556 |
// r (AL): Right-to-Left Arabic |
| 5557 |
// 1 (EN): European Number |
| 5558 |
// + (ES): European Number Separator |
| 5559 |
// % (ET): European Number Terminator |
| 5560 |
// n (AN): Arabic Number |
| 5561 |
// , (CS): Common Number Separator |
| 5562 |
// m (NSM): Non-Spacing Mark |
| 5563 |
// b (BN): Boundary Neutral |
| 5564 |
// s (B): Paragraph Separator |
| 5565 |
// t (S): Segment Separator |
| 5566 |
// w (WS): Whitespace |
| 5567 |
// N (ON): Other Neutrals |
| 5568 |
|
| 5569 |
// Returns null if characters are ordered as they appear |
| 5570 |
// (left-to-right), or an array of sections ({from, to, level} |
| 5571 |
// objects) in the order in which they occur visually. |
| 5572 |
var bidiOrdering = (function() { |
| 5573 |
// Character types for codepoints 0 to 0xff |
| 5574 |
var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLL"; |
| 5575 |
// Character types for codepoints 0x600 to 0x6ff |
| 5576 |
var arabicTypes = "rrrrrrrrrrrr,rNNmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmrrrrrrrnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmNmmmmrrrrrrrrrrrrrrrrrr"; |
| 5577 |
function charType(code) { |
| 5578 |
if (code <= 0xff) return lowTypes.charAt(code); |
| 5579 |
else if (0x590 <= code && code <= 0x5f4) return "R"; |
| 5580 |
else if (0x600 <= code && code <= 0x6ff) return arabicTypes.charAt(code - 0x600); |
| 5581 |
else if (0x700 <= code && code <= 0x8ac) return "r"; |
| 5582 |
else return "L"; |
| 5583 |
} |
| 5584 |
|
| 5585 |
var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/; |
| 5586 |
var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/; |
| 5587 |
// Browsers seem to always treat the boundaries of block elements as being L. |
| 5588 |
var outerType = "L"; |
| 5589 |
|
| 5590 |
return function(str) { |
| 5591 |
if (!bidiRE.test(str)) return false; |
| 5592 |
var len = str.length, types = []; |
| 5593 |
for (var i = 0, type; i < len; ++i) |
| 5594 |
types.push(type = charType(str.charCodeAt(i))); |
| 5595 |
|
| 5596 |
// W1. Examine each non-spacing mark (NSM) in the level run, and |
| 5597 |
// change the type of the NSM to the type of the previous |
| 5598 |
// character. If the NSM is at the start of the level run, it will |
| 5599 |
// get the type of sor. |
| 5600 |
for (var i = 0, prev = outerType; i < len; ++i) { |
| 5601 |
var type = types[i]; |
| 5602 |
if (type == "m") types[i] = prev; |
| 5603 |
else prev = type; |
| 5604 |
} |
| 5605 |
|
| 5606 |
// W2. Search backwards from each instance of a European number |
| 5607 |
// until the first strong type (R, L, AL, or sor) is found. If an |
| 5608 |
// AL is found, change the type of the European number to Arabic |
| 5609 |
// number. |
| 5610 |
// W3. Change all ALs to R. |
| 5611 |
for (var i = 0, cur = outerType; i < len; ++i) { |
| 5612 |
var type = types[i]; |
| 5613 |
if (type == "1" && cur == "r") types[i] = "n"; |
| 5614 |
else if (isStrong.test(type)) { cur = type; if (type == "r") types[i] = "R"; } |
| 5615 |
} |
| 5616 |
|
| 5617 |
// W4. A single European separator between two European numbers |
| 5618 |
// changes to a European number. A single common separator between |
| 5619 |
// two numbers of the same type changes to that type. |
| 5620 |
for (var i = 1, prev = types[0]; i < len - 1; ++i) { |
| 5621 |
var type = types[i]; |
| 5622 |
if (type == "+" && prev == "1" && types[i+1] == "1") types[i] = "1"; |
| 5623 |
else if (type == "," && prev == types[i+1] && |
| 5624 |
(prev == "1" || prev == "n")) types[i] = prev; |
| 5625 |
prev = type; |
| 5626 |
} |
| 5627 |
|
| 5628 |
// W5. A sequence of European terminators adjacent to European |
| 5629 |
// numbers changes to all European numbers. |
| 5630 |
// W6. Otherwise, separators and terminators change to Other |
| 5631 |
// Neutral. |
| 5632 |
for (var i = 0; i < len; ++i) { |
| 5633 |
var type = types[i]; |
| 5634 |
if (type == ",") types[i] = "N"; |
| 5635 |
else if (type == "%") { |
| 5636 |
for (var end = i + 1; end < len && types[end] == "%"; ++end) {} |
| 5637 |
var replace = (i && types[i-1] == "!") || (end < len - 1 && types[end] == "1") ? "1" : "N"; |
| 5638 |
for (var j = i; j < end; ++j) types[j] = replace; |
| 5639 |
i = end - 1; |
| 5640 |
} |
| 5641 |
} |
| 5642 |
|
| 5643 |
// W7. Search backwards from each instance of a European number |
| 5644 |
// until the first strong type (R, L, or sor) is found. If an L is |
| 5645 |
// found, then change the type of the European number to L. |
| 5646 |
for (var i = 0, cur = outerType; i < len; ++i) { |
| 5647 |
var type = types[i]; |
| 5648 |
if (cur == "L" && type == "1") types[i] = "L"; |
| 5649 |
else if (isStrong.test(type)) cur = type; |
| 5650 |
} |
| 5651 |
|
| 5652 |
// N1. A sequence of neutrals takes the direction of the |
| 5653 |
// surrounding strong text if the text on both sides has the same |
| 5654 |
// direction. European and Arabic numbers act as if they were R in |
| 5655 |
// terms of their influence on neutrals. Start-of-level-run (sor) |
| 5656 |
// and end-of-level-run (eor) are used at level run boundaries. |
| 5657 |
// N2. Any remaining neutrals take the embedding direction. |
| 5658 |
for (var i = 0; i < len; ++i) { |
| 5659 |
if (isNeutral.test(types[i])) { |
| 5660 |
for (var end = i + 1; end < len && isNeutral.test(types[end]); ++end) {} |
| 5661 |
var before = (i ? types[i-1] : outerType) == "L"; |
| 5662 |
var after = (end < len - 1 ? types[end] : outerType) == "L"; |
| 5663 |
var replace = before || after ? "L" : "R"; |
| 5664 |
for (var j = i; j < end; ++j) types[j] = replace; |
| 5665 |
i = end - 1; |
| 5666 |
} |
| 5667 |
} |
| 5668 |
|
| 5669 |
// Here we depart from the documented algorithm, in order to avoid |
| 5670 |
// building up an actual levels array. Since there are only three |
| 5671 |
// levels (0, 1, 2) in an implementation that doesn't take |
| 5672 |
// explicit embedding into account, we can build up the order on |
| 5673 |
// the fly, without following the level-based algorithm. |
| 5674 |
var order = [], m; |
| 5675 |
for (var i = 0; i < len;) { |
| 5676 |
if (countsAsLeft.test(types[i])) { |
| 5677 |
var start = i; |
| 5678 |
for (++i; i < len && countsAsLeft.test(types[i]); ++i) {} |
| 5679 |
order.push({from: start, to: i, level: 0}); |
| 5680 |
} else { |
| 5681 |
var pos = i, at = order.length; |
| 5682 |
for (++i; i < len && types[i] != "L"; ++i) {} |
| 5683 |
for (var j = pos; j < i;) { |
| 5684 |
if (countsAsNum.test(types[j])) { |
| 5685 |
if (pos < j) order.splice(at, 0, {from: pos, to: j, level: 1}); |
| 5686 |
var nstart = j; |
| 5687 |
for (++j; j < i && countsAsNum.test(types[j]); ++j) {} |
| 5688 |
order.splice(at, 0, {from: nstart, to: j, level: 2}); |
| 5689 |
pos = j; |
| 5690 |
} else ++j; |
| 5691 |
} |
| 5692 |
if (pos < i) order.splice(at, 0, {from: pos, to: i, level: 1}); |
| 5693 |
} |
| 5694 |
} |
| 5695 |
if (order[0].level == 1 && (m = str.match(/^\s+/))) { |
| 5696 |
order[0].from = m[0].length; |
| 5697 |
order.unshift({from: 0, to: m[0].length, level: 0}); |
| 5698 |
} |
| 5699 |
if (lst(order).level == 1 && (m = str.match(/\s+$/))) { |
| 5700 |
lst(order).to -= m[0].length; |
| 5701 |
order.push({from: len - m[0].length, to: len, level: 0}); |
| 5702 |
} |
| 5703 |
if (order[0].level != lst(order).level) |
| 5704 |
order.push({from: len, to: len, level: order[0].level}); |
| 5705 |
|
| 5706 |
return order; |
| 5707 |
}; |
| 5708 |
})(); |
| 5709 |
|
| 5710 |
// THE END |
| 5711 |
|
| 5712 |
CodeMirror.version = "3.14.0"; |
| 5713 |
|
| 5714 |
return CodeMirror; |
| 5715 |
})(); |