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4124 lines
160 KiB
JavaScript
4124 lines
160 KiB
JavaScript
// CodeMirror version 3.0beta2
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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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// BROWSER SNIFFING
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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{7}/i.test(navigator.userAgent);
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var ie = /MSIE \d/.test(navigator.userAgent);
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var ie_lt8 = /MSIE [1-7]\b/.test(navigator.userAgent);
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var ie_lt9 = /MSIE [1-8]\b/.test(navigator.userAgent);
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var ie_lt10 = /MSIE [1-9]\b/.test(navigator.userAgent);
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var webkit = /WebKit\//.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 ios = /AppleWebKit/.test(navigator.userAgent) && /Mobile\/\w+/.test(navigator.userAgent);
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var mac = ios || /Mac/.test(navigator.platform);
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var win = /Win/.test(navigator.platform);
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// CONSTRUCTOR
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function CodeMirror(place, options) {
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if (!(this instanceof CodeMirror)) return new CodeMirror(place, options, true);
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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);
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var display = this.display = makeDisplay(place);
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display.wrapper.CodeMirror = this;
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updateGutters(this);
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themeChanged(this);
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keyMapChanged(this);
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if (options.tabindex != null) display.input.tabIndex = options.tabindex;
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if (options.autofocus) focusInput(this);
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if (options.lineWrapping) display.wrapper.className += " CodeMirror-wrap";
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var doc = new BranchChunk([new LeafChunk([makeLine("", null, textHeight(display))])]);
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// The selection. These are always maintained to point at valid
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// positions. Inverted is used to remember that the user is
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// selecting bottom-to-top.
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this.view = {
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doc: doc,
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// frontier is the point up to which the content has been parsed,
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frontier: 0, highlight: new Delayed(),
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sel: {from: {line: 0, ch: 0}, to: {line: 0, ch: 0}, inverted: false, shift: false},
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scrollTop: 0, scrollLeft: 0,
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overwrite: false, focused: false,
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// Tracks the maximum line length so that
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// the horizontal scrollbar can be kept
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// static when scrolling.
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maxLine: getLine(doc, 0),
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maxLineChanged: false,
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suppressEdits: false,
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goalColumn: null
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};
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loadMode(this);
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// Initialize the content.
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this.setValue(options.value || "");
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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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this.view.history = makeHistory();
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registerEventHandlers(this);
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// IE throws unspecified error in certain cases, when
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// trying to access activeElement before onload
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var hasFocus; try { hasFocus = (document.activeElement == display.input); } catch(e) { }
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if (hasFocus || options.autofocus) setTimeout(bind(onFocus, this), 20);
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else onBlur(this);
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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]);
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for (var i = 0; i < initHooks.length; ++i) initHooks[i](this);
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}
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// DISPLAY CONSTRUCTOR
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function makeDisplay(place) {
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var d = {};
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var input = d.input = elt("textarea", null, null, "position: absolute; padding: 0; width: 1px; height: 1em; outline: none;");
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input.setAttribute("wrap", "off"); input.setAttribute("autocorrect", "off"); input.setAttribute("autocapitalize", "off");
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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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// DIVs containing the selection and the actual code
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d.lineDiv = elt("div");
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d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1");
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// Blinky cursor, and element used to ensure cursor fits at the end of a line
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d.cursor = elt("pre", "\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("pre", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor");
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// Used to measure text size
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d.measure = elt("div", null, "CodeMirror-measure");
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// Wraps everything that needs to exist inside the vertically-padded coordinate system
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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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d.gutters = elt("div", null, "CodeMirror-gutters");
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d.lineGutter = null;
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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", "\u00a0", null, "position: absolute; height: " + scrollerCutOff + "px");
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// Provides scrolling
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d.scroller = elt("div", [d.sizer, d.heightForcer], "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.gutters, d.inputDiv, d.scrollbarH, d.scrollbarV,
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d.scrollbarFiller, 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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// 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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// Current visible range (may be bigger than the view window).
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d.viewOffset = d.showingFrom = d.showingTo = d.lastSizeC = 0;
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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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// True when a drag from the editor is active
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d.draggingText = false;
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d.cachedCharWidth = d.cachedTextHeight = null;
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d.measureLineCache = [];
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d.measureLineCache.pos = 0;
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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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// Used to adjust overwrite behaviour when a paste has been
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// detected
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d.pasteIncoming = false;
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return d;
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}
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// STATE UPDATES
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// Used to get the editor into a consistent state again when options change.
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function loadMode(cm) {
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var doc = cm.view.doc;
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cm.view.mode = CodeMirror.getMode(cm.options, cm.options.mode);
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doc.iter(0, doc.size, function(line) { line.stateAfter = null; });
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cm.view.frontier = 0;
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startWorker(cm, 100);
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}
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function wrappingChanged(cm) {
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var doc = cm.view.doc;
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if (cm.options.lineWrapping) {
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cm.display.wrapper.className += " CodeMirror-wrap";
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var perLine = cm.display.wrapper.clientWidth / charWidth(cm.display) - 3;
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doc.iter(0, doc.size, function(line) {
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if (line.hidden) return;
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var guess = Math.ceil(line.text.length / perLine) || 1;
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if (guess != 1) updateLineHeight(line, guess);
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});
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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.view);
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doc.iter(0, doc.size, function(line) {
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if (line.height != 1 && !line.hidden) updateLineHeight(line, 1);
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});
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}
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regChange(cm, 0, doc.size);
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}
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function keyMapChanged(cm) {
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var style = keyMap[cm.options.keyMap].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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}
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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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}
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function guttersChanged(cm) {
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updateGutters(cm);
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updateDisplay(cm, true);
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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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function computeMaxLength(view) {
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view.maxLine = getLine(view.doc, 0); view.maxLineChanged = true;
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var maxLineLength = view.maxLine.text.length;
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view.doc.iter(1, view.doc.size, function(line) {
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var l = line.text;
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if (!line.hidden && l.length > maxLineLength) {
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maxLineLength = l.length; view.maxLine = line;
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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;
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for (var i = 0; i < options.gutters.length; ++i) {
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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");
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}
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// SCROLLBARS
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// Re-synchronize the fake scrollbars with the actual size of the
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// content. Optionally force a scrollTop.
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function updateScrollbars(d /* display */, docHeight, scrollTop) {
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d.sizer.style.minHeight = d.heightForcer.style.top = (docHeight + 2 * paddingTop(d)) + "px";
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var needsH = d.scroller.scrollWidth > d.scroller.clientWidth;
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var needsV = d.scroller.scrollHeight > d.scroller.clientHeight;
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if (needsV) {
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d.scrollbarV.style.display = "block";
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d.scrollbarV.style.bottom = needsH ? scrollbarWidth(d.measure) + "px" : "0";
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d.scrollbarV.firstChild.style.height =
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(d.scroller.scrollHeight - d.scroller.clientHeight + d.scrollbarV.clientHeight) + "px";
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if (scrollTop != null) {
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d.scrollbarV.scrollTop = d.scroller.scrollTop = scrollTop;
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// 'Nudge' the scrollbar to work around a Webkit bug where,
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// in some situations, we'd end up with a scrollbar that
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// reported its scrollTop (and looked) as expected, but
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// *behaved* as if it was still in a previous state (i.e.
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// couldn't scroll up, even though it appeared to be at the
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// bottom).
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if (webkit) setTimeout(function() {
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if (d.scrollbarV.scrollTop != scrollTop) return;
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d.scrollbarV.scrollTop = scrollTop + (scrollTop ? -1 : 1);
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d.scrollbarV.scrollTop = scrollTop;
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}, 0);
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}
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} else d.scrollbarV.style.display = "";
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if (needsH) {
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d.scrollbarH.style.display = "block";
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d.scrollbarH.style.right = needsV ? scrollbarWidth(d.measure) + "px" : "0";
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d.scrollbarH.firstChild.style.width =
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(d.scroller.scrollWidth - d.scroller.clientWidth + d.scrollbarH.clientWidth) + "px";
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} else d.scrollbarH.style.display = "";
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if (needsH && needsV) {
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d.scrollbarFiller.style.display = "block";
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d.scrollbarFiller.style.height = d.scrollbarFiller.style.width = scrollbarWidth(d.measure) + "px";
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} else d.scrollbarFiller.style.display = "";
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if (mac_geLion && scrollbarWidth(d.measure) === 0)
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d.scrollbarV.style.minWidth = d.scrollbarH.style.minHeight = mac_geMountainLion ? "18px" : "12px";
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}
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function visibleLines(display, doc, scrollTop) {
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var top = (scrollTop != null ? scrollTop : display.scroller.scrollTop) - paddingTop(display);
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var fromHeight = Math.max(0, Math.floor(top));
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var toHeight = Math.ceil(top + display.wrapper.clientHeight);
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return {from: lineAtHeight(doc, fromHeight),
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to: lineAtHeight(doc, toHeight)};
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}
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// LINE NUMBERS
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function alignVertically(display) {
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if (!display.alignWidgets && !display.gutters.firstChild) return;
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var l = compensateForHScroll(display) + "px";
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for (var n = display.lineDiv.firstChild; n; n = n.nextSibling) if (n.alignable) {
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for (var i = 0, a = n.alignable; i < a.length; ++i) a[i].style.left = l;
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}
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}
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function maybeUpdateLineNumberWidth(cm) {
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if (!cm.options.lineNumbers) return false;
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var doc = cm.view.doc, last = lineNumberFor(cm.options, doc.size - 1), display = cm.display;
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if (last.length != display.lineNumChars) {
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var test = display.measure.appendChild(elt("div", [elt("div", last)],
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"CodeMirror-linenumber CodeMirror-gutter-elt"));
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var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW;
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display.lineGutter.style.width = "";
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display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding);
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display.lineNumWidth = display.lineNumInnerWidth + padding;
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display.lineNumChars = display.lineNumInnerWidth ? last.length : -1;
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display.lineGutter.style.width = display.lineNumWidth + "px";
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return true;
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}
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return false;
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}
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function lineNumberFor(options, i) {
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return String(options.lineNumberFormatter(i + options.firstLineNumber));
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}
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function compensateForHScroll(display) {
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return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left;
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}
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// DISPLAY DRAWING
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function updateDisplay(cm, changes, scrollTop) {
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var oldFrom = cm.display.showingFrom, oldTo = cm.display.showingTo;
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var updated = updateDisplayInner(cm, changes, scrollTop);
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if (updated) {
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signalLater(cm, cm, "update", cm);
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if (cm.display.showingFrom != oldFrom || cm.display.showingTo != oldTo)
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signalLater(cm, cm, "viewportChange", cm, cm.display.showingFrom, cm.display.showingTo);
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}
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updateSelection(cm);
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updateScrollbars(cm.display, cm.view.doc.height, scrollTop);
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return updated;
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}
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// Uses a set of changes plus the current scroll position to
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// determine which DOM updates have to be made, and makes the
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// updates.
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function updateDisplayInner(cm, changes, scrollTop) {
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var display = cm.display, doc = cm.view.doc;
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if (!display.wrapper.clientWidth) {
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display.showingFrom = display.showingTo = display.viewOffset = 0;
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return;
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}
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// Compute the new visible window
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// If scrollTop is specified, use that to determine which lines
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// to render instead of the current scrollbar position.
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var visible = visibleLines(display, doc, scrollTop);
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// Bail out if the visible area is already rendered and nothing changed.
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if (changes !== true && changes.length == 0 &&
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visible.from > display.showingFrom && visible.to < display.showingTo)
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return;
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if (changes && maybeUpdateLineNumberWidth(cm))
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changes = true;
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display.sizer.style.marginLeft = display.scrollbarH.style.left = display.gutters.offsetWidth + "px";
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// Used to determine which lines need their line numbers updated
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var positionsChangedFrom = changes === true ? 0 : Infinity;
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if (cm.options.lineNumbers && changes && changes !== true)
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for (var i = 0; i < changes.length; ++i)
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if (changes[i].diff) { positionsChangedFrom = changes[i].from; break; }
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var from = Math.max(visible.from - cm.options.viewportMargin, 0);
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var to = Math.min(doc.size, visible.to + cm.options.viewportMargin);
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if (display.showingFrom < from && from - display.showingFrom < 20) from = display.showingFrom;
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if (display.showingTo > to && display.showingTo - to < 20) to = Math.min(doc.size, display.showingTo);
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// Create a range of theoretically intact lines, and punch holes
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// in that using the change info.
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var intact = changes === true ? [] :
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computeIntact([{from: display.showingFrom, to: display.showingTo, domStart: 0}], changes);
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// Clip off the parts that won't be visible
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var intactLines = 0;
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for (var i = 0; i < intact.length; ++i) {
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var range = intact[i];
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if (range.from < from) {range.domStart += (from - range.from); range.from = from;}
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if (range.to > to) range.to = to;
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if (range.from >= range.to) intact.splice(i--, 1);
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else intactLines += range.to - range.from;
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}
|
|
if (intactLines == to - from && from == display.showingFrom && to == display.showingTo)
|
|
return;
|
|
intact.sort(function(a, b) {return a.domStart - b.domStart;});
|
|
|
|
if (intactLines < (to - from) * .7) display.lineDiv.style.display = "none";
|
|
patchDisplay(cm, from, to, intact, positionsChangedFrom);
|
|
display.lineDiv.style.display = "";
|
|
|
|
var different = from != display.showingFrom || to != display.showingTo ||
|
|
display.lastSizeC != display.wrapper.clientHeight;
|
|
// This is just a bogus formula that detects when the editor is
|
|
// resized or the font size changes.
|
|
if (different) display.lastSizeC = display.wrapper.clientHeight;
|
|
display.showingFrom = from; display.showingTo = to;
|
|
display.viewOffset = heightAtLine(doc, from);
|
|
startWorker(cm, 100);
|
|
|
|
// Since this is all rather error prone, it is honoured with the
|
|
// only assertion in the whole file.
|
|
if (display.lineDiv.childNodes.length != display.showingTo - display.showingFrom)
|
|
throw new Error("BAD PATCH! " + JSON.stringify(intact) + " size=" + (display.showingTo - display.showingFrom) +
|
|
" nodes=" + display.lineDiv.childNodes.length);
|
|
|
|
// Update line heights for visible lines based on actual DOM
|
|
// sizes
|
|
var curNode = display.lineDiv.firstChild, relativeTo = curNode.offsetTop;
|
|
doc.iter(display.showingFrom, display.showingTo, function(line) {
|
|
// Work around bizarro IE7 bug where, sometimes, our curNode
|
|
// is magically replaced with a new node in the DOM, leaving
|
|
// us with a reference to an orphan (nextSibling-less) node.
|
|
if (!curNode) return;
|
|
if (!line.hidden || (line.hidden.handle.showWidgets && line.widgets)) {
|
|
var end = curNode.offsetHeight + curNode.offsetTop;
|
|
var height = end - relativeTo, diff = line.height - height;
|
|
if (height < 2) height = textHeight(display);
|
|
relativeTo = end;
|
|
if (diff > .001 || diff < -.001)
|
|
updateLineHeight(line, height);
|
|
}
|
|
curNode = curNode.nextSibling;
|
|
});
|
|
|
|
// Position the mover div to align with the current virtual scroll position
|
|
display.mover.style.top = display.viewOffset + "px";
|
|
return true;
|
|
}
|
|
|
|
function computeIntact(intact, changes) {
|
|
for (var i = 0, l = changes.length || 0; i < l; ++i) {
|
|
var change = changes[i], intact2 = [], diff = change.diff || 0;
|
|
for (var j = 0, l2 = intact.length; j < l2; ++j) {
|
|
var range = intact[j];
|
|
if (change.to <= range.from && change.diff)
|
|
intact2.push({from: range.from + diff, to: range.to + diff,
|
|
domStart: range.domStart});
|
|
else if (change.to <= range.from || change.from >= range.to)
|
|
intact2.push(range);
|
|
else {
|
|
if (change.from > range.from)
|
|
intact2.push({from: range.from, to: change.from, domStart: range.domStart});
|
|
if (change.to < range.to)
|
|
intact2.push({from: change.to + diff, to: range.to + diff,
|
|
domStart: range.domStart + (change.to - range.from)});
|
|
}
|
|
}
|
|
intact = intact2;
|
|
}
|
|
return intact;
|
|
}
|
|
|
|
function getDimensions(cm) {
|
|
var d = cm.display, left = {}, width = {};
|
|
for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
|
|
left[cm.options.gutters[i]] = n.offsetLeft;
|
|
width[cm.options.gutters[i]] = n.offsetWidth;
|
|
}
|
|
return {fixedPos: compensateForHScroll(d),
|
|
gutterTotalWidth: d.gutters.offsetWidth,
|
|
gutterLeft: left,
|
|
gutterWidth: width,
|
|
wrapperWidth: d.wrapper.clientWidth};
|
|
}
|
|
|
|
function patchDisplay(cm, from, to, intact, updateNumbersFrom) {
|
|
function killNode(node) {
|
|
var tmp = node.nextSibling;
|
|
node.parentNode.removeChild(node);
|
|
return tmp;
|
|
}
|
|
var dims = getDimensions(cm);
|
|
var display = cm.display, lineNumbers = cm.options.lineNumbers;
|
|
// The first pass removes the DOM nodes that aren't intact.
|
|
if (!intact.length) {
|
|
// old IE does bad things to nodes when .innerHTML = "" is used on a parent
|
|
// we still need widgets and markers intact to add back to the new content later
|
|
if (ie_lt10) for (var ld = display.lineDiv, tmp = ld.firstChild; tmp; tmp = ld.firstChild) ld.removeChild(tmp);
|
|
else removeChildren(display.lineDiv);
|
|
} else {
|
|
var domPos = 0, curNode = display.lineDiv.firstChild, n;
|
|
for (var i = 0; i < intact.length; ++i) {
|
|
var cur = intact[i];
|
|
while (cur.domStart > domPos) {curNode = killNode(curNode); domPos++;}
|
|
for (var j = cur.from, e = cur.to; j < e; ++j) {
|
|
if (lineNumbers && updateNumbersFrom <= j && curNode.firstChild)
|
|
setTextContent(curNode.firstChild.firstChild, lineNumberFor(cm.options, j));
|
|
curNode = curNode.nextSibling; domPos++;
|
|
}
|
|
}
|
|
while (curNode) curNode = killNode(curNode);
|
|
}
|
|
// This pass fills in the lines that actually changed.
|
|
var nextIntact = intact.shift(), curNode = display.lineDiv.firstChild;
|
|
var j = from;
|
|
|
|
cm.view.doc.iter(from, to, function(line) {
|
|
if (nextIntact && nextIntact.to == j) nextIntact = intact.shift();
|
|
if (!nextIntact || nextIntact.from > j)
|
|
display.lineDiv.insertBefore(buildLineElement(cm, line, j, dims), curNode);
|
|
else
|
|
curNode = curNode.nextSibling;
|
|
++j;
|
|
});
|
|
}
|
|
|
|
function buildLineElement(cm, line, lineNo, dims) {
|
|
if (line.hidden && (!line.hidden.handle.showWidgets || !line.widgets))
|
|
return elt("div");
|
|
|
|
var lineElement = line.hidden ? elt("div") : lineContent(cm, line);
|
|
var markers = line.gutterMarkers, display = cm.display;
|
|
|
|
if (!cm.options.lineNumbers && !markers && !line.bgClassName &&
|
|
(!line.widgets || !line.widgets.length)) return lineElement;
|
|
|
|
// Lines with gutter elements or a background class need
|
|
// to be wrapped again, and have the extra elements added
|
|
// to the wrapper div
|
|
|
|
var wrap = elt("div", null, null, "position: relative");
|
|
if (cm.options.lineNumbers || markers) {
|
|
var gutterWrap = wrap.appendChild(elt("div", null, null, "position: absolute; left: " +
|
|
dims.fixedPos + "px"));
|
|
wrap.alignable = [gutterWrap];
|
|
if (cm.options.lineNumbers)
|
|
gutterWrap.appendChild(elt("div", lineNumberFor(cm.options, lineNo),
|
|
"CodeMirror-linenumber CodeMirror-gutter-elt",
|
|
"left: " + dims.gutterLeft["CodeMirror-linenumbers"] + "px; width: "
|
|
+ display.lineNumInnerWidth + "px"));
|
|
if (markers)
|
|
for (var k = 0; k < cm.options.gutters.length; ++k) {
|
|
var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id];
|
|
if (found) {
|
|
gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt", "left: " +
|
|
dims.gutterLeft[id] + "px; width: " + dims.gutterWidth[id] + "px"));
|
|
}
|
|
}
|
|
}
|
|
// Kludge to make sure the styled element lies behind the selection (by z-index)
|
|
if (line.bgClassName)
|
|
wrap.appendChild(elt("div", "\u00a0", line.bgClassName + " CodeMirror-linebackground"));
|
|
wrap.appendChild(lineElement);
|
|
if (line.widgets)
|
|
for (var i = 0, ws = line.widgets; i < ws.length; ++i) {
|
|
var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget");
|
|
node.widget = widget;
|
|
if (widget.noHScroll) {
|
|
(wrap.alignable || (wrap.alignable = [])).push(node);
|
|
var width = dims.wrapperWidth;
|
|
node.style.left = dims.fixedPos + "px";
|
|
if (!widget.coverGutter) {
|
|
width -= dims.gutterTotalWidth;
|
|
node.style.paddingLeft = dims.gutterTotalWidth + "px";
|
|
}
|
|
node.style.width = width + "px";
|
|
}
|
|
if (widget.coverGutter) {
|
|
node.style.zIndex = 5;
|
|
node.style.position = "relative";
|
|
if (!widget.noHScroll) node.style.marginLeft = -dims.gutterTotalWidth + "px";
|
|
}
|
|
if (widget.above)
|
|
wrap.insertBefore(node, cm.options.lineNumbers && !line.hidden ? gutterWrap : lineElement);
|
|
else
|
|
wrap.appendChild(node);
|
|
}
|
|
|
|
if (ie_lt8) wrap.style.zIndex = 2;
|
|
return wrap;
|
|
}
|
|
|
|
// SELECTION / CURSOR
|
|
|
|
function selHead(view) {
|
|
return view.sel.inverted ? view.sel.from : view.sel.to;
|
|
}
|
|
|
|
function updateSelection(cm) {
|
|
var headPos, display = cm.display, doc = cm.view.doc, sel = cm.view.sel;
|
|
if (posEq(sel.from, sel.to)) { // No selection, single cursor
|
|
var pos = headPos = cursorCoords(cm, sel.from, "div");
|
|
display.cursor.style.left = pos.left + "px";
|
|
display.cursor.style.top = pos.top + "px";
|
|
display.cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px";
|
|
display.cursor.style.display = "";
|
|
display.selectionDiv.style.display = "none";
|
|
|
|
if (pos.other) {
|
|
display.otherCursor.style.display = "";
|
|
display.otherCursor.style.left = pos.other.left + "px";
|
|
display.otherCursor.style.top = pos.other.top + "px";
|
|
display.otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px";
|
|
} else { display.otherCursor.style.display = "none"; }
|
|
} else {
|
|
headPos = cursorCoords(cm, selHead(cm.view), "div");
|
|
var fragment = document.createDocumentFragment();
|
|
var clientWidth = display.lineSpace.offsetWidth;
|
|
var add = function(left, top, width, bottom) {
|
|
if (top < 0) top = 0;
|
|
fragment.appendChild(elt("div", null, "CodeMirror-selected", "position: absolute; left: " + left +
|
|
"px; top: " + top + "px; width: " + (width == null ? clientWidth : width) +
|
|
"px; height: " + (bottom - top) + "px"));
|
|
};
|
|
|
|
var middleFrom = sel.from.line + 1, middleTo = sel.to.line - 1, sameLine = sel.from.line == sel.to.line;
|
|
var drawForLine = function(line, from, toArg, retTop) {
|
|
var lineObj = getLine(doc, line), lineLen = lineObj.text.length;
|
|
var coords = function(ch) { return charCoords(cm, {line: line, ch: ch}, "div", lineObj); };
|
|
var rVal = retTop ? Infinity : -Infinity;
|
|
iterateBidiSections(getOrder(lineObj), from, toArg == null ? lineLen : toArg, function(from, to, dir) {
|
|
var leftPos = coords(dir == "rtl" ? to - 1 : from);
|
|
var rightPos = coords(dir == "rtl" ? from : to - 1);
|
|
var left = leftPos.left, right = rightPos.right;
|
|
if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part
|
|
add(left, leftPos.top, null, leftPos.bottom);
|
|
left = paddingLeft(display);
|
|
if (leftPos.bottom < rightPos.top) add(left, leftPos.bottom, null, rightPos.top);
|
|
}
|
|
if (toArg == null && to == lineLen) right = clientWidth;
|
|
rVal = retTop ? Math.min(rightPos.top, rVal) : Math.max(rightPos.bottom, rVal);
|
|
add(left, rightPos.top, right - left, rightPos.bottom);
|
|
});
|
|
return rVal;
|
|
};
|
|
|
|
var middleTop = Infinity, middleBot = -Infinity;
|
|
if (sel.from.ch || sameLine)
|
|
// Draw the first line of selection.
|
|
middleTop = drawForLine(sel.from.line, sel.from.ch, sameLine ? sel.to.ch : null);
|
|
else
|
|
// Simply include it in the middle block.
|
|
middleFrom = sel.from.line;
|
|
|
|
if (!sameLine && sel.to.ch)
|
|
middleBot = drawForLine(sel.to.line, 0, sel.to.ch, true);
|
|
|
|
if (middleFrom <= middleTo) {
|
|
// Draw the middle
|
|
var botLine = getLine(doc, middleTo),
|
|
bottom = charCoords(cm, {line: middleTo, ch: botLine.text.length}, "div", botLine);
|
|
// Kludge to try and prevent fetching coordinates twice if
|
|
// start end end are on same line.
|
|
var top = (middleFrom != middleTo || botLine.height > bottom.bottom - bottom.top) ?
|
|
charCoords(cm, {line: middleFrom, ch: 0}, "div") : bottom;
|
|
middleTop = Math.min(middleTop, top.top);
|
|
middleBot = Math.max(middleBot, bottom.bottom);
|
|
}
|
|
if (middleTop < middleBot) add(paddingLeft(display), middleTop, null, middleBot);
|
|
|
|
removeChildrenAndAdd(display.selectionDiv, fragment);
|
|
display.cursor.style.display = display.otherCursor.style.display = "none";
|
|
display.selectionDiv.style.display = "";
|
|
}
|
|
|
|
// Move the hidden textarea near the cursor to prevent scrolling artifacts
|
|
var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect();
|
|
display.inputDiv.style.top = Math.max(0, Math.min(display.wrapper.clientHeight - 10,
|
|
headPos.top + lineOff.top - wrapOff.top)) + "px";
|
|
display.inputDiv.style.left = Math.max(0, Math.min(display.wrapper.clientWidth - 10,
|
|
headPos.left + lineOff.left - wrapOff.left)) + "px";
|
|
}
|
|
|
|
// Cursor-blinking
|
|
function restartBlink(cm) {
|
|
var display = cm.display;
|
|
clearInterval(display.blinker);
|
|
var on = true;
|
|
display.cursor.style.visibility = display.otherCursor.style.visibility = "";
|
|
display.blinker = setInterval(function() {
|
|
display.cursor.style.visibility = display.otherCursor.style.visibility = (on = !on) ? "" : "hidden";
|
|
}, cm.options.cursorBlinkRate);
|
|
}
|
|
|
|
// HIGHLIGHT WORKER
|
|
|
|
function startWorker(cm, time) {
|
|
if (cm.view.frontier < cm.display.showingTo)
|
|
cm.view.highlight.set(time, bind(highlightWorker, cm));
|
|
}
|
|
|
|
function highlightWorker(cm) {
|
|
var view = cm.view, doc = view.doc;
|
|
if (view.frontier >= cm.display.showingTo) return;
|
|
var end = +new Date + cm.options.workTime;
|
|
var state = copyState(view.mode, getStateBefore(cm, view.frontier));
|
|
var changed = [], prevChange;
|
|
doc.iter(view.frontier, Math.min(doc.size, cm.display.showingTo + 500), function(line) {
|
|
if (view.frontier >= cm.display.showingFrom) { // Visible
|
|
if (highlightLine(cm, line, state) && view.frontier >= cm.display.showingFrom) {
|
|
if (prevChange && prevChange.end == view.frontier) prevChange.end++;
|
|
else changed.push(prevChange = {start: view.frontier, end: view.frontier + 1});
|
|
}
|
|
line.stateAfter = copyState(view.mode, state);
|
|
} else {
|
|
processLine(cm, line, state);
|
|
line.stateAfter = view.frontier % 5 == 0 ? copyState(view.mode, state) : null;
|
|
}
|
|
++view.frontier;
|
|
if (+new Date > end) {
|
|
startWorker(cm, cm.options.workDelay);
|
|
return true;
|
|
}
|
|
});
|
|
if (changed.length)
|
|
operation(cm, function() {
|
|
for (var i = 0; i < changed.length; ++i)
|
|
regChange(this, changed[i].start, changed[i].end);
|
|
})();
|
|
}
|
|
|
|
// Finds the line to start with when starting a parse. Tries to
|
|
// find a line with a stateAfter, so that it can start with a
|
|
// valid state. If that fails, it returns the line with the
|
|
// smallest indentation, which tends to need the least context to
|
|
// parse correctly.
|
|
function findStartLine(cm, n) {
|
|
var minindent, minline, doc = cm.view.doc;
|
|
for (var search = n, lim = n - 100; search > lim; --search) {
|
|
if (search == 0) return 0;
|
|
var line = getLine(doc, search-1);
|
|
if (line.stateAfter) return search;
|
|
var indented = countColumn(line.text, null, cm.options.tabSize);
|
|
if (minline == null || minindent > indented) {
|
|
minline = search - 1;
|
|
minindent = indented;
|
|
}
|
|
}
|
|
return minline;
|
|
}
|
|
|
|
function getStateBefore(cm, n) {
|
|
var view = cm.view;
|
|
var pos = findStartLine(cm, n), state = pos && getLine(view.doc, pos-1).stateAfter;
|
|
if (!state) state = startState(view.mode);
|
|
else state = copyState(view.mode, state);
|
|
view.doc.iter(pos, n, function(line) {
|
|
processLine(cm, line, state);
|
|
line.stateAfter = (pos == n - 1 || pos % 5 == 0) ? copyState(view.mode, state) : null;
|
|
});
|
|
return state;
|
|
}
|
|
|
|
// POSITION MEASUREMENT
|
|
|
|
function paddingTop(display) {return display.lineSpace.offsetTop;}
|
|
function paddingLeft(display) {
|
|
var e = removeChildrenAndAdd(display.measure, elt("pre")).appendChild(elt("span", "x"));
|
|
return e.offsetLeft;
|
|
}
|
|
|
|
function measureLine(cm, line, ch) {
|
|
var wrapping = cm.options.lineWrapping, display = cm.display;
|
|
// First look in the cache
|
|
var cache = cm.display.measureLineCache;
|
|
for (var i = 0; i < cache.length; ++i) {
|
|
var memo = cache[i];
|
|
if (memo.ch == ch && memo.text == line.text &&
|
|
(!wrapping || display.scroller.clientWidth == memo.width))
|
|
return {top: memo.top, bottom: memo.bottom, left: memo.left, right: memo.right};
|
|
}
|
|
|
|
var atEnd = ch && ch == line.text.length;
|
|
var pre = lineContent(cm, line, atEnd ? ch - 1 : ch);
|
|
removeChildrenAndAdd(display.measure, pre);
|
|
var anchor = pre.anchor;
|
|
// We'll sample once at the top, once at the bottom of the line,
|
|
// to get the real line height (in case there tokens on the line
|
|
// with bigger fonts)
|
|
anchor.style.verticalAlign = "top";
|
|
var outer = display.lineDiv.getBoundingClientRect(), box1 = anchor.getBoundingClientRect();
|
|
var left = box1.left - outer.left, right = box1.right - outer.left;
|
|
if (ie) {
|
|
var left1 = anchor.offsetLeft;
|
|
// In IE, verticalAlign does not influence offsetTop, unless
|
|
// the element is an inline-block. Unfortunately, inline
|
|
// blocks have different wrapping behaviour, so we have to do
|
|
// some icky thing with inserting "Zero-Width No-Break Spaces"
|
|
// to compensate for wrapping artifacts.
|
|
anchor.style.display = "inline-block";
|
|
if (wrapping && anchor.offsetLeft != left1) {
|
|
anchor.parentNode.insertBefore(document.createTextNode("\ufeff"), anchor);
|
|
if (anchor.offsetLeft != left1)
|
|
anchor.parentNode.insertBefore(document.createTextNode("\ufeff"), anchor.nextSibling);
|
|
if (anchor.offsetLeft != left1)
|
|
anchor.parentNode.removeChild(anchor.previousSibling);
|
|
}
|
|
}
|
|
var top = Math.max(0, box1.top - outer.top);
|
|
anchor.style.verticalAlign = "bottom";
|
|
var bottom = Math.min(anchor.getBoundingClientRect().bottom - outer.top, pre.offsetHeight);
|
|
if (atEnd) left = right;
|
|
|
|
// Store result in the cache
|
|
var memo = {ch: ch, text: line.text, width: display.wrapper.clientWidth,
|
|
top: top, bottom: bottom, left: left, right: right};
|
|
if (cache.length == 8) cache[++cache.pos % 8] = memo;
|
|
else cache.push(memo);
|
|
|
|
return {top: top, bottom: bottom, left: left, right: right};
|
|
}
|
|
|
|
// Context is one of "line", "div" (display.lineDiv), "local"/null (editor), or "page"
|
|
function intoCoordSystem(cm, lineObj, pos, rect, context) {
|
|
if (lineObj.widgets) for (var i = 0; i < lineObj.widgets.length; ++i) if (lineObj.widgets[i].above) {
|
|
var size = lineObj.widgets[i].node.offsetHeight;
|
|
rect.top += size; rect.bottom += size;
|
|
}
|
|
if (context == "line") return rect;
|
|
if (!context) context = "local";
|
|
var yOff = heightAtLine(cm.view.doc, pos.line);
|
|
if (context != "local") yOff -= cm.display.viewOffset;
|
|
if (context == "page") {
|
|
var lOff = cm.display.lineSpace.getBoundingClientRect();
|
|
yOff += lOff.top + (window.pageYOffset || (document.documentElement || document.body).scrollTop);
|
|
var xOff = lOff.left + (window.pageXOffset || (document.documentElement || document.body).scrollLeft);
|
|
rect.left += xOff; rect.right += xOff;
|
|
}
|
|
rect.top += yOff; rect.bottom += yOff;
|
|
return rect;
|
|
}
|
|
|
|
function charCoords(cm, pos, context, lineObj) {
|
|
if (!lineObj) lineObj = getLine(cm.view.doc, pos.line);
|
|
return intoCoordSystem(cm, lineObj, pos, measureLine(cm, lineObj, pos.ch), context);
|
|
}
|
|
|
|
function cursorCoords(cm, pos, context, lineObj) {
|
|
lineObj = lineObj || getLine(cm.view.doc, pos.line);
|
|
function get(ch, right) {
|
|
var m = measureLine(cm, lineObj, ch);
|
|
if (right) m.left = m.right; else m.right = m.left;
|
|
return intoCoordSystem(cm, lineObj, pos, m, context);
|
|
}
|
|
var order = getOrder(lineObj), ch = pos.ch;
|
|
if (!order) return get(ch);
|
|
var main, other, linedir = order[0].level;
|
|
for (var i = 0; i < order.length; ++i) {
|
|
var part = order[i], rtl = part.level % 2, nb, here;
|
|
if (part.from < ch && part.to > ch) return get(ch, rtl);
|
|
var left = rtl ? part.to : part.from, right = rtl ? part.from : part.to;
|
|
if (left == ch) {
|
|
// Opera and IE return bogus offsets and widths for edges
|
|
// where the direction flips, but only for the side with the
|
|
// lower level. So we try to use the side with the higher
|
|
// level.
|
|
if (i && part.level < (nb = order[i-1]).level) here = get(nb.level % 2 ? nb.from : nb.to - 1, true);
|
|
else here = get(rtl && part.from != part.to ? ch - 1 : ch);
|
|
if (rtl == linedir) main = here; else other = here;
|
|
} else if (right == ch) {
|
|
var nb = i < order.length - 1 && order[i+1];
|
|
if (!rtl && nb && nb.from == nb.to) continue;
|
|
if (nb && part.level < nb.level) here = get(nb.level % 2 ? nb.to - 1 : nb.from);
|
|
else here = get(rtl ? ch : ch - 1, true);
|
|
if (rtl == linedir) main = here; else other = here;
|
|
}
|
|
}
|
|
if (linedir && !ch) other = get(order[0].to - 1);
|
|
if (!main) return other;
|
|
if (other) main.other = other;
|
|
return main;
|
|
}
|
|
|
|
// Coords must be lineSpace-local
|
|
function coordsChar(cm, x, y) {
|
|
var display = cm.display, doc = cm.view.doc;
|
|
var cw = charWidth(display), heightPos = display.viewOffset + y;
|
|
if (heightPos < 0) return {line: 0, ch: 0, outside: true};
|
|
var lineNo = lineAtHeight(doc, heightPos);
|
|
if (lineNo >= doc.size) return {line: doc.size - 1, ch: getLine(doc, doc.size - 1).text.length};
|
|
var lineObj = getLine(doc, lineNo);
|
|
if (!lineObj.text.length) return {line: lineNo, ch: 0};
|
|
var innerOff = heightPos - heightAtLine(doc, lineNo);
|
|
if (x < 0) x = 0;
|
|
var wrongLine = false, cWidth = display.wrapper.clientWidth;
|
|
function getX(ch) {
|
|
var sp = cursorCoords(cm, {line: lineNo, ch: ch}, "line", lineObj);
|
|
wrongLine = true;
|
|
if (innerOff > sp.bottom) return Math.max(0, sp.left - cWidth);
|
|
else if (innerOff < sp.top) return sp.left + cWidth;
|
|
else wrongLine = false;
|
|
return sp.left;
|
|
}
|
|
var bidi = getOrder(lineObj), dist = lineObj.text.length;
|
|
var from = lineLeft(lineObj), fromX = 0, to = lineRight(lineObj), toX;
|
|
if (!bidi) {
|
|
// Guess a suitable upper bound for our search.
|
|
var estimated = Math.min(to, Math.ceil((x + Math.floor(innerOff / textHeight(display)) *
|
|
display.wrapper.clientWidth * .9) / cw));
|
|
for (;;) {
|
|
var estX = getX(estimated);
|
|
if (estX <= x && estimated < to) estimated = Math.min(to, Math.ceil(estimated * 1.2));
|
|
else {toX = estX; to = estimated; break;}
|
|
}
|
|
// Try to guess a suitable lower bound as well.
|
|
estimated = Math.floor(to * 0.8); estX = getX(estimated);
|
|
if (estX < x) {from = estimated; fromX = estX;}
|
|
dist = to - from;
|
|
} else toX = getX(to);
|
|
if (x > toX) return {line: lineNo, ch: to, outside: wrongLine};
|
|
// Do a binary search between these bounds.
|
|
for (;;) {
|
|
if (bidi ? to == from || to == moveVisually(lineObj, from, 1) : to - from <= 1) {
|
|
var after = x - fromX < toX - x, ch = after ? from : to;
|
|
while (isExtendingChar.test(lineObj.text.charAt(ch))) ++ch;
|
|
return {line: lineNo, ch: ch, after: after, outside: wrongLine};
|
|
}
|
|
var step = Math.ceil(dist / 2), middle = from + step;
|
|
if (bidi) {
|
|
middle = from;
|
|
for (var i = 0; i < step; ++i) middle = moveVisually(lineObj, middle, 1);
|
|
}
|
|
var middleX = getX(middle);
|
|
if (middleX > x) {to = middle; toX = middleX; if (wrongLine) toX += 1000; dist -= step;}
|
|
else {from = middle; fromX = middleX; dist = step;}
|
|
}
|
|
}
|
|
|
|
var measureText;
|
|
function textHeight(display) {
|
|
if (display.cachedTextHeight != null) return display.cachedTextHeight;
|
|
if (measureText == null) {
|
|
measureText = elt("pre");
|
|
// Measure a bunch of lines, for browsers that compute
|
|
// fractional heights.
|
|
for (var i = 0; i < 49; ++i) {
|
|
measureText.appendChild(document.createTextNode("x"));
|
|
measureText.appendChild(elt("br"));
|
|
}
|
|
measureText.appendChild(document.createTextNode("x"));
|
|
}
|
|
removeChildrenAndAdd(display.measure, measureText);
|
|
var height = measureText.offsetHeight / 50;
|
|
if (height > 3) display.cachedTextHeight = height;
|
|
removeChildren(display.measure);
|
|
return height || 1;
|
|
}
|
|
|
|
function charWidth(display) {
|
|
if (display.cachedCharWidth != null) return display.cachedCharWidth;
|
|
var anchor = elt("span", "x");
|
|
var pre = elt("pre", [anchor]);
|
|
removeChildrenAndAdd(display.measure, pre);
|
|
var width = anchor.offsetWidth;
|
|
if (width > 2) display.cachedCharWidth = width;
|
|
return width || 10;
|
|
}
|
|
|
|
// OPERATIONS
|
|
|
|
// Operations are used to wrap changes in such a way that each
|
|
// change won't have to update the cursor and display (which would
|
|
// be awkward, slow, and error-prone), but instead updates are
|
|
// batched and then all combined and executed at once.
|
|
|
|
function startOperation(cm) {
|
|
if (cm.curOp) ++cm.curOp.depth;
|
|
else cm.curOp = {
|
|
// Nested operations delay update until the outermost one
|
|
// finishes.
|
|
depth: 1,
|
|
// An array of ranges of lines that have to be updated. See
|
|
// updateDisplay.
|
|
changes: [],
|
|
delayedCallbacks: [],
|
|
updateInput: null,
|
|
userSelChange: null,
|
|
textChanged: null,
|
|
selectionChanged: false,
|
|
updateMaxLine: false
|
|
};
|
|
}
|
|
|
|
function endOperation(cm) {
|
|
var op = cm.curOp;
|
|
if (--op.depth) return;
|
|
cm.curOp = null;
|
|
var view = cm.view, display = cm.display;
|
|
if (op.updateMaxLine) computeMaxLength(view);
|
|
if (view.maxLineChanged && !cm.options.lineWrapping) {
|
|
var width = measureLine(cm, view.maxLine, view.maxLine.text.length).left;
|
|
display.sizer.style.minWidth = (width + 3 + scrollerCutOff) + "px";
|
|
view.maxLineChanged = false;
|
|
}
|
|
var newScrollPos, updated;
|
|
if (op.selectionChanged) {
|
|
var coords = cursorCoords(cm, selHead(view));
|
|
newScrollPos = calculateScrollPos(display, coords.left, coords.top, coords.left, coords.bottom);
|
|
}
|
|
if (op.changes.length || newScrollPos && newScrollPos.scrollTop != null)
|
|
updated = updateDisplay(cm, op.changes, newScrollPos && newScrollPos.scrollTop);
|
|
if (!updated && op.selectionChanged) updateSelection(cm);
|
|
if (newScrollPos) scrollCursorIntoView(cm);
|
|
if (op.selectionChanged) restartBlink(cm);
|
|
|
|
if (view.focused && op.updateInput)
|
|
resetInput(cm, op.userSelChange);
|
|
|
|
if (op.textChanged)
|
|
signal(cm, "change", cm, op.textChanged);
|
|
if (op.selectionChanged) signal(cm, "cursorActivity", cm);
|
|
for (var i = 0; i < op.delayedCallbacks.length; ++i) op.delayedCallbacks[i](cm);
|
|
}
|
|
|
|
// Wraps a function in an operation. Returns the wrapped function.
|
|
function operation(cm1, f) {
|
|
return function() {
|
|
var cm = cm1 || this;
|
|
startOperation(cm);
|
|
try {var result = f.apply(cm, arguments);}
|
|
finally {endOperation(cm);}
|
|
return result;
|
|
};
|
|
}
|
|
|
|
function regChange(cm, from, to, lendiff) {
|
|
cm.curOp.changes.push({from: from, to: to, diff: lendiff});
|
|
}
|
|
|
|
// INPUT HANDLING
|
|
|
|
function slowPoll(cm) {
|
|
if (cm.view.pollingFast) return;
|
|
cm.display.poll.set(cm.options.pollInterval, function() {
|
|
readInput(cm);
|
|
if (cm.view.focused) slowPoll(cm);
|
|
});
|
|
}
|
|
|
|
function fastPoll(cm) {
|
|
var missed = false;
|
|
cm.display.pollingFast = true;
|
|
function p() {
|
|
var changed = readInput(cm);
|
|
if (!changed && !missed) {missed = true; cm.display.poll.set(60, p);}
|
|
else {cm.display.pollingFast = false; slowPoll(cm);}
|
|
}
|
|
cm.display.poll.set(20, p);
|
|
}
|
|
|
|
// prevInput is a hack to work with IME. If we reset the textarea
|
|
// on every change, that breaks IME. So we look for changes
|
|
// compared to the previous content instead. (Modern browsers have
|
|
// events that indicate IME taking place, but these are not widely
|
|
// supported or compatible enough yet to rely on.)
|
|
function readInput(cm) {
|
|
var input = cm.display.input, prevInput = cm.display.prevInput, view = cm.view, sel = view.sel;
|
|
if (!view.focused || hasSelection(input) || cm.options.readOnly) return false;
|
|
var text = input.value;
|
|
if (text == prevInput && posEq(sel.from, sel.to)) return false;
|
|
startOperation(cm);
|
|
view.sel.shift = null;
|
|
var same = 0, l = Math.min(prevInput.length, text.length);
|
|
while (same < l && prevInput[same] == text[same]) ++same;
|
|
if (same < prevInput.length)
|
|
sel.from = {line: sel.from.line, ch: sel.from.ch - (prevInput.length - same)};
|
|
else if (view.overwrite && posEq(sel.from, sel.to) && !cm.display.pasteIncoming)
|
|
sel.to = {line: sel.to.line, ch: Math.min(getLine(cm.view.doc, sel.to.line).text.length, sel.to.ch + (text.length - same))};
|
|
var updateInput = cm.curOp.updateInput;
|
|
cm.replaceSelection(text.slice(same), "end");
|
|
cm.curOp.updateInput = updateInput;
|
|
if (text.length > 1000) { input.value = cm.display.prevInput = ""; }
|
|
else cm.display.prevInput = text;
|
|
endOperation(cm);
|
|
cm.display.pasteIncoming = false;
|
|
return true;
|
|
}
|
|
|
|
function resetInput(cm, user) {
|
|
var view = cm.view, minimal, selected;
|
|
if (!posEq(view.sel.from, view.sel.to)) {
|
|
cm.display.prevInput = "";
|
|
minimal = hasCopyEvent &&
|
|
(view.sel.to.line - view.sel.from.line > 100 || (selected = cm.getSelection()).length > 1000);
|
|
if (minimal) cm.display.input.value = "-";
|
|
else cm.display.input.value = selected || cm.getSelection();
|
|
if (view.focused) selectInput(cm.display.input);
|
|
} else if (user) cm.display.prevInput = cm.display.input.value = "";
|
|
cm.display.inaccurateSelection = minimal;
|
|
}
|
|
|
|
function focusInput(cm) {
|
|
if (cm.options.readOnly != "nocursor") cm.display.input.focus();
|
|
}
|
|
|
|
// EVENT HANDLERS
|
|
|
|
function registerEventHandlers(cm) {
|
|
var d = cm.display;
|
|
on(d.scroller, "mousedown", operation(cm, onMouseDown));
|
|
on(d.gutters, "mousedown", operation(cm, clickInGutter));
|
|
on(d.scroller, "dblclick", operation(cm, e_preventDefault));
|
|
on(d.lineSpace, "selectstart", function(e) {
|
|
if (!mouseEventInWidget(d, e)) e_preventDefault(e);
|
|
});
|
|
// Gecko browsers fire contextmenu *after* opening the menu, at
|
|
// which point we can't mess with it anymore. Context menu is
|
|
// handled in onMouseDown for Gecko.
|
|
if (!gecko) on(d.scroller, "contextmenu", function(e) {onContextMenu(cm, e);});
|
|
|
|
on(d.scroller, "scroll", function() {
|
|
setScrollTop(cm, d.scroller.scrollTop);
|
|
setScrollLeft(cm, d.scroller.scrollLeft);
|
|
signal(cm, "scroll", cm);
|
|
});
|
|
on(d.scrollbarV, "scroll", function() {
|
|
setScrollTop(cm, d.scrollbarV.scrollTop);
|
|
});
|
|
on(d.scrollbarH, "scroll", function() {
|
|
setScrollLeft(cm, d.scrollbarH.scrollLeft);
|
|
});
|
|
|
|
on(d.scroller, "mousewheel", function(e){onScrollWheel(cm, e);});
|
|
on(d.scroller, "DOMMouseScroll", function(e){onScrollWheel(cm, e);});
|
|
|
|
function reFocus() { if (cm.view.focused) setTimeout(bind(focusInput, cm), 0); }
|
|
on(d.scrollbarH, "mousedown", reFocus);
|
|
on(d.scrollbarV, "mousedown", reFocus);
|
|
// Prevent wrapper from ever scrolling
|
|
on(d.wrapper, "scroll", function() { d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; });
|
|
on(window, "resize", function resizeHandler() {
|
|
// Might be a text scaling operation, clear size caches.
|
|
d.cachedCharWidth = d.cachedTextHeight = null;
|
|
d.measureLineCache.length = d.measureLineCache.pos = 0;
|
|
if (d.wrapper.parentNode) updateDisplay(cm, true);
|
|
else off(window, "resize", resizeHandler);
|
|
});
|
|
|
|
on(d.input, "keyup", operation(cm, function(e) {
|
|
if (cm.options.onKeyEvent && cm.options.onKeyEvent(cm, addStop(e))) return;
|
|
if (e_prop(e, "keyCode") == 16) cm.view.sel.shift = null;
|
|
}));
|
|
on(d.input, "input", bind(fastPoll, cm));
|
|
on(d.input, "keydown", operation(cm, onKeyDown));
|
|
on(d.input, "keypress", operation(cm, onKeyPress));
|
|
on(d.input, "focus", bind(onFocus, cm));
|
|
on(d.input, "blur", bind(onBlur, cm));
|
|
|
|
function drag_(e) {
|
|
if (cm.options.onDragEvent && cm.options.onDragEvent(cm, addStop(e))) return;
|
|
e_stop(e);
|
|
}
|
|
if (cm.options.dragDrop) {
|
|
on(d.scroller, "dragstart", function(e){onDragStart(cm, e);});
|
|
on(d.scroller, "dragenter", drag_);
|
|
on(d.scroller, "dragover", drag_);
|
|
on(d.scroller, "drop", operation(cm, onDrop));
|
|
}
|
|
on(d.scroller, "paste", function(){focusInput(cm); fastPoll(cm);});
|
|
on(d.input, "paste", function() {
|
|
d.pasteIncoming = true;
|
|
fastPoll(cm);
|
|
});
|
|
|
|
function prepareCopy() {
|
|
if (d.inaccurateSelection) {
|
|
d.prevInput = "";
|
|
d.inaccurateSelection = false;
|
|
d.input.value = cm.getSelection();
|
|
selectInput(d.input);
|
|
}
|
|
}
|
|
on(d.input, "cut", prepareCopy);
|
|
on(d.input, "copy", prepareCopy);
|
|
|
|
// Needed to handle Tab key in KHTML
|
|
if (khtml) on(d.sizer, "mouseup", function() {
|
|
if (document.activeElement == d.input) d.input.blur();
|
|
focusInput(cm);
|
|
});
|
|
}
|
|
|
|
function mouseEventInWidget(display, e) {
|
|
for (var n = e_target(e); n != display.wrapper; n = n.parentNode)
|
|
if (/\bCodeMirror-linewidget\b/.test(n.className) ||
|
|
n.parentNode == display.sizer && n != display.mover) return true;
|
|
}
|
|
|
|
function posFromMouse(cm, e, liberal) {
|
|
var display = cm.display;
|
|
if (!liberal) {
|
|
var target = e_target(e);
|
|
if (target == display.scrollbarH || target == display.scrollbarH.firstChild ||
|
|
target == display.scrollbarV || target == display.scrollbarV.firstChild ||
|
|
target == display.scrollbarFiller) return null;
|
|
}
|
|
var x, y, space = display.lineSpace.getBoundingClientRect();
|
|
// Fails unpredictably on IE[67] when mouse is dragged around quickly.
|
|
try { x = e.clientX; y = e.clientY; } catch (e) { return null; }
|
|
return coordsChar(cm, x - space.left, y - space.top);
|
|
}
|
|
|
|
var lastClick, lastDoubleClick;
|
|
function onMouseDown(e) {
|
|
var cm = this, display = cm.display, view = cm.view, sel = view.sel, doc = view.doc;
|
|
setShift(cm.view, e_prop(e, "shiftKey"));
|
|
|
|
if (mouseEventInWidget(display, e)) {
|
|
if (!webkit) {
|
|
display.scroller.draggable = false;
|
|
setTimeout(function(){display.scroller.draggable = true;}, 100);
|
|
}
|
|
return;
|
|
}
|
|
if (clickInGutter.call(cm, e)) return;
|
|
var start = posFromMouse(cm, e);
|
|
|
|
switch (e_button(e)) {
|
|
case 3:
|
|
if (gecko) onContextMenu.call(cm, cm, e);
|
|
return;
|
|
case 2:
|
|
if (start) setSelectionUser(cm, start, start);
|
|
setTimeout(bind(focusInput, cm), 20);
|
|
e_preventDefault(e);
|
|
return;
|
|
}
|
|
// For button 1, if it was clicked inside the editor
|
|
// (posFromMouse returning non-null), we have to adjust the
|
|
// selection.
|
|
if (!start) {if (e_target(e) == display.scroller) e_preventDefault(e); return;}
|
|
|
|
if (!view.focused) onFocus(cm);
|
|
|
|
var now = +new Date, type = "single";
|
|
if (lastDoubleClick && lastDoubleClick.time > now - 400 && posEq(lastDoubleClick.pos, start)) {
|
|
type = "triple";
|
|
e_preventDefault(e);
|
|
setTimeout(bind(focusInput, cm), 20);
|
|
selectLine(cm, start.line);
|
|
} else if (lastClick && lastClick.time > now - 400 && posEq(lastClick.pos, start)) {
|
|
type = "double";
|
|
lastDoubleClick = {time: now, pos: start};
|
|
e_preventDefault(e);
|
|
var word = findWordAt(getLine(doc, start.line).text, start);
|
|
setSelectionUser(cm, word.from, word.to);
|
|
} else { lastClick = {time: now, pos: start}; }
|
|
|
|
var last = start;
|
|
if (cm.options.dragDrop && dragAndDrop && !cm.options.readOnly && !posEq(sel.from, sel.to) &&
|
|
!posLess(start, sel.from) && !posLess(sel.to, start) && type == "single") {
|
|
var dragEnd = operation(cm, function(e2) {
|
|
if (webkit) display.scroller.draggable = false;
|
|
view.draggingText = false;
|
|
off(document, "mouseup", dragEnd);
|
|
off(display.scroller, "drop", dragEnd);
|
|
if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) {
|
|
e_preventDefault(e2);
|
|
setSelectionUser(cm, start, start);
|
|
focusInput(cm);
|
|
}
|
|
});
|
|
// Let the drag handler handle this.
|
|
if (webkit) display.scroller.draggable = true;
|
|
view.draggingText = dragEnd;
|
|
// IE's approach to draggable
|
|
if (display.scroller.dragDrop) display.scroller.dragDrop();
|
|
on(document, "mouseup", dragEnd);
|
|
on(display.scroller, "drop", dragEnd);
|
|
return;
|
|
}
|
|
e_preventDefault(e);
|
|
if (type == "single") setSelectionUser(cm, start, start);
|
|
|
|
var startstart = sel.from, startend = sel.to;
|
|
|
|
function doSelect(cur) {
|
|
if (type == "single") {
|
|
setSelectionUser(cm, start, cur);
|
|
} else if (type == "double") {
|
|
var word = findWordAt(getLine(doc, cur.line).text, cur);
|
|
if (posLess(cur, startstart)) setSelectionUser(cm, word.from, startend);
|
|
else setSelectionUser(cm, startstart, word.to);
|
|
} else if (type == "triple") {
|
|
if (posLess(cur, startstart)) setSelectionUser(cm, startend, clipPos(doc, {line: cur.line, ch: 0}));
|
|
else setSelectionUser(cm, startstart, clipPos(doc, {line: cur.line + 1, ch: 0}));
|
|
}
|
|
}
|
|
|
|
var editorSize = display.wrapper.getBoundingClientRect();
|
|
// Used to ensure timeout re-tries don't fire when another extend
|
|
// happened in the meantime (clearTimeout isn't reliable -- at
|
|
// least on Chrome, the timeouts still happen even when cleared,
|
|
// if the clear happens after their scheduled firing time).
|
|
var counter = 0;
|
|
|
|
function extend(e) {
|
|
var curCount = ++counter;
|
|
var cur = posFromMouse(cm, e, true);
|
|
if (!cur) return;
|
|
if (!posEq(cur, last)) {
|
|
if (!view.focused) onFocus(cm);
|
|
last = cur;
|
|
doSelect(cur);
|
|
var visible = visibleLines(display, doc);
|
|
if (cur.line >= visible.to || cur.line < visible.from)
|
|
setTimeout(operation(cm, function(){if (counter == curCount) extend(e);}), 150);
|
|
} else {
|
|
var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0;
|
|
if (outside) setTimeout(operation(cm, function() {
|
|
if (counter != curCount) return;
|
|
display.scroller.scrollTop += outside;
|
|
extend(e);
|
|
}), 50);
|
|
}
|
|
}
|
|
|
|
function done(e) {
|
|
counter = Infinity;
|
|
var cur = posFromMouse(cm, e);
|
|
if (cur) doSelect(cur);
|
|
e_preventDefault(e);
|
|
focusInput(cm);
|
|
off(document, "mousemove", move);
|
|
off(document, "mouseup", up);
|
|
}
|
|
|
|
var move = operation(cm, function(e) {
|
|
e_preventDefault(e);
|
|
if (!ie && !e_button(e)) done(e);
|
|
else extend(e);
|
|
});
|
|
var up = operation(cm, done);
|
|
on(document, "mousemove", move);
|
|
on(document, "mouseup", up);
|
|
}
|
|
|
|
function onDrop(e) {
|
|
var cm = this;
|
|
if (cm.options.onDragEvent && cm.options.onDragEvent(cm, addStop(e))) return;
|
|
e_preventDefault(e);
|
|
var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files;
|
|
if (!pos || cm.options.readOnly) return;
|
|
if (files && files.length && window.FileReader && window.File) {
|
|
var n = files.length, text = Array(n), read = 0;
|
|
var loadFile = function(file, i) {
|
|
var reader = new FileReader;
|
|
reader.onload = function() {
|
|
text[i] = reader.result;
|
|
if (++read == n) {
|
|
pos = clipPos(cm.view.doc, pos);
|
|
operation(cm, function() {
|
|
var end = replaceRange(cm, text.join(""), pos, pos);
|
|
setSelectionUser(cm, pos, end);
|
|
})();
|
|
}
|
|
};
|
|
reader.readAsText(file);
|
|
};
|
|
for (var i = 0; i < n; ++i) loadFile(files[i], i);
|
|
} else {
|
|
// Don't do a replace if the drop happened inside of the selected text.
|
|
if (cm.view.draggingText && !(posLess(pos, cm.view.sel.from) || posLess(cm.view.sel.to, pos))) {
|
|
cm.view.draggingText(e);
|
|
if (ie) setTimeout(bind(focusInput, cm), 50);
|
|
return;
|
|
}
|
|
try {
|
|
var text = e.dataTransfer.getData("Text");
|
|
if (text) {
|
|
compoundChange(cm, function() {
|
|
var curFrom = cm.view.sel.from, curTo = cm.view.sel.to;
|
|
setSelectionUser(cm, pos, pos);
|
|
if (cm.view.draggingText) replaceRange(cm, "", curFrom, curTo);
|
|
cm.replaceSelection(text);
|
|
focusInput(cm);
|
|
onFocus(cm);
|
|
});
|
|
}
|
|
}
|
|
catch(e){}
|
|
}
|
|
}
|
|
|
|
function clickInGutter(e) {
|
|
var cm = this, display = cm.display;
|
|
try { var mX = e.clientX, mY = e.clientY; }
|
|
catch(e) { return false; }
|
|
|
|
if (mX >= Math.floor(display.gutters.getBoundingClientRect().right)) return false;
|
|
e_preventDefault(e);
|
|
if (!hasHandler(cm, "gutterClick")) return true;
|
|
|
|
var lineBox = display.lineDiv.getBoundingClientRect();
|
|
if (mY > lineBox.bottom) return true;
|
|
mY -= lineBox.top - display.viewOffset;
|
|
|
|
for (var i = 0; i < cm.options.gutters.length; ++i) {
|
|
var g = display.gutters.childNodes[i];
|
|
if (g && g.getBoundingClientRect().right >= mX) {
|
|
var line = lineAtHeight(cm.view.doc, mY);
|
|
var gutter = cm.options.gutters[i];
|
|
signalLater(cm, cm, "gutterClick", cm, line, gutter, e);
|
|
break;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
function onDragStart(cm, e) {
|
|
var txt = cm.getSelection();
|
|
e.dataTransfer.setData("Text", txt);
|
|
|
|
// Use dummy image instead of default browsers image.
|
|
if (e.dataTransfer.setDragImage)
|
|
e.dataTransfer.setDragImage(elt('img'), 0, 0);
|
|
}
|
|
|
|
function setScrollTop(cm, val) {
|
|
if (cm.view.scrollTop == val) return;
|
|
cm.view.scrollTop = val;
|
|
if (!gecko) updateDisplay(cm, [], val);
|
|
if (cm.display.scroller.scrollTop != val) cm.display.scroller.scrollTop = val;
|
|
if (cm.display.scrollbarV.scrollTop != val) cm.display.scrollbarV.scrollTop = val;
|
|
if (gecko) updateDisplay(cm, []);
|
|
}
|
|
function setScrollLeft(cm, val) {
|
|
if (cm.view.scrollLeft == val) return;
|
|
cm.view.scrollLeft = val;
|
|
if (cm.display.scroller.scrollLeft != val) cm.display.scroller.scrollLeft = val;
|
|
if (cm.display.scrollbarH.scrollLeft != val) cm.display.scrollbarH.scrollLeft = val;
|
|
alignVertically(cm.display);
|
|
}
|
|
|
|
// Since the delta values reported on mouse wheel events are
|
|
// unstandardized between browsers and even browser versions, and
|
|
// generally horribly unpredictable, this code starts by measuring
|
|
// the scroll effect that the first few mouse wheel events have,
|
|
// and, from that, detects the way it can convert deltas to pixel
|
|
// offsets afterwards.
|
|
//
|
|
// The reason we want to directly handle the wheel event is that it
|
|
// gives us a chance to update the display before the actual
|
|
// scrolling happens, reducing flickering.
|
|
|
|
var wheelSamples = [], wheelDX, wheelDY, wheelStartX, wheelStartY, wheelPixelsPerUnit;
|
|
function onScrollWheel(cm, e) {
|
|
var dx = e.wheelDeltaX, dy = e.wheelDeltaY;
|
|
if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) dx = e.detail;
|
|
if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) dy = e.detail;
|
|
else if (dy == null) dy = e.wheelDelta;
|
|
|
|
var scroll = cm.display.scroller;
|
|
if (wheelPixelsPerUnit != null) {
|
|
if (dx) setScrollLeft(cm, Math.max(0, Math.round(scroll.scrollLeft += dx * wheelPixelsPerUnit)));
|
|
if (dy) setScrollTop(cm, Math.max(0, Math.round(scroll.scrollTop + dy * wheelPixelsPerUnit)));
|
|
e_stop(e);
|
|
} else {
|
|
if (wheelStartX == null) {
|
|
wheelStartX = scroll.scrollLeft; wheelStartY = scroll.scrollTop;
|
|
wheelDX = dx; wheelDY = dy;
|
|
setTimeout(function() {
|
|
var movedX = scroll.scrollLeft - wheelStartX;
|
|
var movedY = scroll.scrollTop - wheelStartY;
|
|
var sample = (movedY && wheelDY && movedY / wheelDY) ||
|
|
(movedX && wheelDX && movedX / wheelDX);
|
|
wheelStartX = wheelStartY = null;
|
|
if (!sample) return;
|
|
wheelSamples.push(sample);
|
|
if (wheelSamples.length >= 15) {
|
|
for (var total = 0, i = 0; i < wheelSamples.length; ++i) total += wheelSamples[i];
|
|
wheelPixelsPerUnit = total / wheelSamples.length;
|
|
}
|
|
}, 200);
|
|
} else {
|
|
wheelDX += dx; wheelDY += dy;
|
|
}
|
|
}
|
|
}
|
|
|
|
function doHandleBinding(cm, bound, dropShift) {
|
|
if (typeof bound == "string") {
|
|
bound = commands[bound];
|
|
if (!bound) return false;
|
|
}
|
|
var view = cm.view, prevShift = view.sel.shift;
|
|
try {
|
|
if (cm.options.readOnly) view.suppressEdits = true;
|
|
if (dropShift) view.sel.shift = null;
|
|
bound(cm);
|
|
} catch(e) {
|
|
if (e != Pass) throw e;
|
|
return false;
|
|
} finally {
|
|
view.sel.shift = prevShift;
|
|
view.suppressEdits = false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
var maybeTransition;
|
|
function handleKeyBinding(cm, e) {
|
|
// Handle auto keymap transitions
|
|
var startMap = getKeyMap(cm.options.keyMap), next = startMap.auto;
|
|
clearTimeout(maybeTransition);
|
|
if (next && !isModifierKey(e)) maybeTransition = setTimeout(function() {
|
|
if (getKeyMap(cm.options.keyMap) == startMap)
|
|
cm.options.keyMap = (next.call ? next.call(null, cm) : next);
|
|
}, 50);
|
|
|
|
var name = keyNames[e_prop(e, "keyCode")], handled = false;
|
|
var flipCtrlCmd = opera && mac;
|
|
if (name == null || e.altGraphKey) return false;
|
|
if (e_prop(e, "altKey")) name = "Alt-" + name;
|
|
if (e_prop(e, flipCtrlCmd ? "metaKey" : "ctrlKey")) name = "Ctrl-" + name;
|
|
if (e_prop(e, flipCtrlCmd ? "ctrlKey" : "metaKey")) name = "Cmd-" + name;
|
|
|
|
var stopped = false;
|
|
function stop() { stopped = true; }
|
|
|
|
if (e_prop(e, "shiftKey")) {
|
|
handled = lookupKey("Shift-" + name, cm.options.extraKeys, cm.options.keyMap,
|
|
function(b) {return doHandleBinding(cm, b, true);}, stop)
|
|
|| lookupKey(name, cm.options.extraKeys, cm.options.keyMap, function(b) {
|
|
if (typeof b == "string" && /^go[A-Z]/.test(b)) return doHandleBinding(cm, b);
|
|
}, stop);
|
|
} else {
|
|
handled = lookupKey(name, cm.options.extraKeys, cm.options.keyMap,
|
|
function(b) { return doHandleBinding(cm, b); }, stop);
|
|
}
|
|
if (stopped) handled = false;
|
|
if (handled) {
|
|
e_preventDefault(e);
|
|
restartBlink(cm);
|
|
if (ie) { e.oldKeyCode = e.keyCode; e.keyCode = 0; }
|
|
}
|
|
return handled;
|
|
}
|
|
|
|
function handleCharBinding(cm, e, ch) {
|
|
var handled = lookupKey("'" + ch + "'", cm.options.extraKeys, cm.options.keyMap,
|
|
function(b) { return doHandleBinding(cm, b, true); });
|
|
if (handled) {
|
|
e_preventDefault(e);
|
|
restartBlink(cm);
|
|
}
|
|
return handled;
|
|
}
|
|
|
|
var lastStoppedKey = null;
|
|
function onKeyDown(e) {
|
|
var cm = this;
|
|
if (!cm.view.focused) onFocus(cm);
|
|
if (ie && e.keyCode == 27) { e.returnValue = false; }
|
|
if (cm.display.pollingFast) { if (readInput(cm)) cm.display.pollingFast = false; }
|
|
if (cm.options.onKeyEvent && cm.options.onKeyEvent(cm, addStop(e))) return;
|
|
var code = e_prop(e, "keyCode");
|
|
// IE does strange things with escape.
|
|
setShift(cm.view, code == 16 || e_prop(e, "shiftKey"));
|
|
// First give onKeyEvent option a chance to handle this.
|
|
var handled = handleKeyBinding(cm, e);
|
|
if (opera) {
|
|
lastStoppedKey = handled ? code : null;
|
|
// Opera has no cut event... we try to at least catch the key combo
|
|
if (!handled && code == 88 && e_prop(e, mac ? "metaKey" : "ctrlKey"))
|
|
cm.replaceSelection("");
|
|
}
|
|
}
|
|
|
|
function onKeyPress(e) {
|
|
var cm = this;
|
|
if (cm.display.pollingFast) readInput(cm);
|
|
if (cm.options.onKeyEvent && cm.options.onKeyEvent(cm, addStop(e))) return;
|
|
var keyCode = e_prop(e, "keyCode"), charCode = e_prop(e, "charCode");
|
|
if (opera && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;}
|
|
if (((opera && (!e.which || e.which < 10)) || khtml) && handleKeyBinding(cm, e)) return;
|
|
var ch = String.fromCharCode(charCode == null ? keyCode : charCode);
|
|
if (this.options.electricChars && this.view.mode.electricChars &&
|
|
this.options.smartIndent && !this.options.readOnly &&
|
|
this.view.mode.electricChars.indexOf(ch) > -1)
|
|
setTimeout(operation(cm, function() {indentLine(cm, cm.view.sel.to.line, "smart");}), 75);
|
|
if (handleCharBinding(cm, e, ch)) return;
|
|
fastPoll(cm);
|
|
}
|
|
|
|
function onFocus(cm) {
|
|
if (cm.options.readOnly == "nocursor") return;
|
|
if (!cm.view.focused) {
|
|
signal(cm, "focus", cm);
|
|
cm.view.focused = true;
|
|
if (cm.display.scroller.className.search(/\bCodeMirror-focused\b/) == -1)
|
|
cm.display.scroller.className += " CodeMirror-focused";
|
|
}
|
|
slowPoll(cm);
|
|
restartBlink(cm);
|
|
}
|
|
function onBlur(cm) {
|
|
if (cm.view.focused) {
|
|
signal(cm, "blur", cm);
|
|
cm.view.focused = false;
|
|
cm.display.scroller.className = cm.display.scroller.className.replace(" CodeMirror-focused", "");
|
|
}
|
|
clearInterval(cm.display.blinker);
|
|
setTimeout(function() {if (!cm.view.focused) cm.view.sel.shift = null;}, 150);
|
|
}
|
|
|
|
var detectingSelectAll;
|
|
function onContextMenu(cm, e) {
|
|
var display = cm.display, sel = cm.view.sel;
|
|
var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop;
|
|
if (!pos || opera) return; // Opera is difficult.
|
|
if (posEq(sel.from, sel.to) || posLess(pos, sel.from) || !posLess(pos, sel.to))
|
|
operation(cm, setSelection)(cm, pos, pos);
|
|
|
|
var oldCSS = display.input.style.cssText;
|
|
display.inputDiv.style.position = "absolute";
|
|
display.input.style.cssText = "position: fixed; width: 30px; height: 30px; top: " + (e.clientY - 5) +
|
|
"px; left: " + (e.clientX - 5) + "px; z-index: 1000; background: white; outline: none;" +
|
|
"border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);";
|
|
focusInput(cm);
|
|
resetInput(cm, true);
|
|
// Adds "Select all" to context menu in FF
|
|
if (posEq(sel.from, sel.to)) display.input.value = display.prevInput = " ";
|
|
|
|
function rehide() {
|
|
display.inputDiv.style.position = "relative";
|
|
display.input.style.cssText = oldCSS;
|
|
if (ie_lt9) display.scrollbarV.scrollTop = display.scroller.scrollTop = scrollPos;
|
|
slowPoll(cm);
|
|
|
|
// Try to detect the user choosing select-all
|
|
if (display.input.selectionStart != null) {
|
|
clearTimeout(detectingSelectAll);
|
|
var extval = display.input.value = " " + (posEq(sel.from, sel.to) ? "" : display.input.value), i = 0;
|
|
display.prevInput = " ";
|
|
display.input.selectionStart = 1; display.input.selectionEnd = extval.length;
|
|
detectingSelectAll = setTimeout(function poll(){
|
|
if (display.prevInput == " " && display.input.selectionStart == 0)
|
|
operation(cm, commands.selectAll)(cm);
|
|
else if (i++ < 10) detectingSelectAll = setTimeout(poll, 500);
|
|
else resetInput(cm);
|
|
}, 200);
|
|
}
|
|
}
|
|
|
|
if (gecko) {
|
|
e_stop(e);
|
|
on(window, "mouseup", function mouseup() {
|
|
off(window, "mouseup", mouseup);
|
|
setTimeout(rehide, 20);
|
|
});
|
|
} else {
|
|
setTimeout(rehide, 50);
|
|
}
|
|
}
|
|
|
|
// UPDATING
|
|
|
|
// Replace the range from from to to by the strings in newText.
|
|
// Afterwards, set the selection to selFrom, selTo.
|
|
function updateDoc(cm, from, to, newText, selFrom, selTo) {
|
|
var view = cm.view, doc = view.doc;
|
|
if (view.suppressEdits) return;
|
|
var old = [];
|
|
doc.iter(from.line, to.line + 1, function(line) {
|
|
old.push(newHL(line.text, line.markedSpans));
|
|
});
|
|
if (view.history) {
|
|
addChange(view.history, from.line, newText.length, old);
|
|
while (view.history.done.length > cm.options.undoDepth) view.history.done.shift();
|
|
}
|
|
var lines = updateMarkedSpans(hlSpans(old[0]), hlSpans(lst(old)), from.ch, to.ch, newText);
|
|
updateDocNoUndo(cm, from, to, lines, selFrom, selTo);
|
|
}
|
|
function unredoHelper(cm, from, to) {
|
|
var doc = cm.view.doc;
|
|
if (!from.length) return;
|
|
var set = from.pop(), out = [];
|
|
for (var i = set.length - 1; i >= 0; i -= 1) {
|
|
var change = set[i];
|
|
var replaced = [], end = change.start + change.added;
|
|
doc.iter(change.start, end, function(line) { replaced.push(newHL(line.text, line.markedSpans)); });
|
|
out.push({start: change.start, added: change.old.length, old: replaced});
|
|
var pos = {line: change.start + change.old.length - 1,
|
|
ch: editEnd(hlText(lst(replaced)), hlText(lst(change.old)))};
|
|
updateDocNoUndo(cm, {line: change.start, ch: 0}, {line: end - 1, ch: getLine(doc, end-1).text.length},
|
|
change.old, pos, pos);
|
|
}
|
|
to.push(out);
|
|
}
|
|
function undo(cm) {
|
|
var hist = cm.view.history;
|
|
unredoHelper(cm, hist.done, hist.undone);
|
|
}
|
|
function redo(cm) {
|
|
var hist = cm.view.history;
|
|
unredoHelper(cm, hist.undone, hist.done);
|
|
}
|
|
|
|
function updateDocNoUndo(cm, from, to, lines, selFrom, selTo) {
|
|
var view = cm.view, doc = view.doc, display = cm.display;
|
|
if (view.suppressEdits) return;
|
|
var recomputeMaxLength = false, maxLineLength = view.maxLine.text.length;
|
|
if (!cm.options.lineWrapping)
|
|
doc.iter(from.line, to.line + 1, function(line) {
|
|
if (!line.hidden && line.text.length == maxLineLength) {recomputeMaxLength = true; return true;}
|
|
});
|
|
|
|
var nlines = to.line - from.line, firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line);
|
|
var lastHL = lst(lines), th = textHeight(display);
|
|
|
|
// First adjust the line structure
|
|
if (from.ch == 0 && to.ch == 0 && hlText(lastHL) == "") {
|
|
// This is a whole-line replace. Treated specially to make
|
|
// sure line objects move the way they are supposed to.
|
|
var added = [], prevLine = null;
|
|
for (var i = 0, e = lines.length - 1; i < e; ++i)
|
|
added.push(makeLine(hlText(lines[i]), hlSpans(lines[i]), th));
|
|
updateLine(cm, lastLine, lastLine.text, hlSpans(lastHL));
|
|
if (nlines) doc.remove(from.line, nlines, cm);
|
|
if (added.length) doc.insert(from.line, added);
|
|
} else if (firstLine == lastLine) {
|
|
if (lines.length == 1) {
|
|
updateLine(cm, firstLine, firstLine.text.slice(0, from.ch) + hlText(lines[0]) +
|
|
firstLine.text.slice(to.ch), hlSpans(lines[0]));
|
|
} else {
|
|
for (var added = [], i = 1, e = lines.length - 1; i < e; ++i)
|
|
added.push(makeLine(hlText(lines[i]), hlSpans(lines[i]), th));
|
|
added.push(makeLine(hlText(lastHL) + firstLine.text.slice(to.ch), hlSpans(lastHL), th));
|
|
updateLine(cm, firstLine, firstLine.text.slice(0, from.ch) + hlText(lines[0]), hlSpans(lines[0]));
|
|
doc.insert(from.line + 1, added);
|
|
}
|
|
} else if (lines.length == 1) {
|
|
updateLine(cm, firstLine, firstLine.text.slice(0, from.ch) + hlText(lines[0]) +
|
|
lastLine.text.slice(to.ch), hlSpans(lines[0]));
|
|
doc.remove(from.line + 1, nlines, cm);
|
|
} else {
|
|
var added = [];
|
|
updateLine(cm, firstLine, firstLine.text.slice(0, from.ch) + hlText(lines[0]), hlSpans(lines[0]));
|
|
updateLine(cm, lastLine, hlText(lastHL) + lastLine.text.slice(to.ch), hlSpans(lastHL));
|
|
for (var i = 1, e = lines.length - 1; i < e; ++i)
|
|
added.push(makeLine(hlText(lines[i]), hlSpans(lines[i]), th));
|
|
if (nlines > 1) doc.remove(from.line + 1, nlines - 1, cm);
|
|
doc.insert(from.line + 1, added);
|
|
}
|
|
|
|
if (cm.options.lineWrapping) {
|
|
var perLine = Math.max(5, display.scroller.clientWidth / charWidth(display) - 3);
|
|
doc.iter(from.line, from.line + lines.length, function(line) {
|
|
if (line.hidden) return;
|
|
var guess = (Math.ceil(line.text.length / perLine) || 1) * th;
|
|
if (guess != line.height) updateLineHeight(line, guess);
|
|
});
|
|
} else {
|
|
doc.iter(from.line, from.line + lines.length, function(line) {
|
|
var l = line.text;
|
|
if (!line.hidden && l.length > maxLineLength) {
|
|
view.maxLine = line; maxLineLength = l.length; view.maxLineChanged = true;
|
|
recomputeMaxLength = false;
|
|
}
|
|
});
|
|
if (recomputeMaxLength) cm.curOp.updateMaxLine = true;
|
|
}
|
|
|
|
// Adjust frontier, schedule worker
|
|
view.frontier = Math.min(view.frontier, from.line);
|
|
startWorker(cm, 400);
|
|
|
|
var lendiff = lines.length - nlines - 1;
|
|
// Remember that these lines changed, for updating the display
|
|
regChange(cm, from.line, to.line + 1, lendiff);
|
|
if (hasHandler(cm, "change")) {
|
|
// Normalize lines to contain only strings, since that's what
|
|
// the change event handler expects
|
|
for (var i = 0; i < lines.length; ++i)
|
|
if (typeof lines[i] != "string") lines[i] = lines[i].text;
|
|
var changeObj = {from: from, to: to, text: lines};
|
|
if (cm.curOp.textChanged) {
|
|
for (var cur = cm.curOp.textChanged; cur.next; cur = cur.next) {}
|
|
cur.next = changeObj;
|
|
} else cm.curOp.textChanged = changeObj;
|
|
}
|
|
|
|
// Update the selection
|
|
setSelection(cm, clipPos(doc, selFrom), clipPos(doc, selTo), true);
|
|
}
|
|
|
|
function replaceRange(cm, code, from, to) {
|
|
if (!to) to = from;
|
|
if (posLess(to, from)) { var tmp = to; to = from; from = tmp; }
|
|
code = splitLines(code);
|
|
function adjustPos(pos) {
|
|
if (posLess(pos, from)) return pos;
|
|
if (!posLess(to, pos)) return end;
|
|
var line = pos.line + code.length - (to.line - from.line) - 1;
|
|
var ch = pos.ch;
|
|
if (pos.line == to.line)
|
|
ch += lst(code).length - (to.ch - (to.line == from.line ? from.ch : 0));
|
|
return {line: line, ch: ch};
|
|
}
|
|
var end;
|
|
replaceRange1(cm, code, from, to, function(end1) {
|
|
end = end1;
|
|
return {from: adjustPos(cm.view.sel.from), to: adjustPos(cm.view.sel.to)};
|
|
});
|
|
return end;
|
|
}
|
|
function replaceRange1(cm, code, from, to, computeSel) {
|
|
var endch = code.length == 1 ? code[0].length + from.ch : lst(code).length;
|
|
var newSel = computeSel({line: from.line + code.length - 1, ch: endch});
|
|
updateDoc(cm, from, to, code, newSel.from, newSel.to);
|
|
}
|
|
|
|
// SELECTION
|
|
|
|
function posEq(a, b) {return a.line == b.line && a.ch == b.ch;}
|
|
function posLess(a, b) {return a.line < b.line || (a.line == b.line && a.ch < b.ch);}
|
|
function copyPos(x) {return {line: x.line, ch: x.ch};}
|
|
|
|
function clipLine(doc, n) {return Math.max(0, Math.min(n, doc.size-1));}
|
|
function clipPos(doc, pos) {
|
|
if (pos.line < 0) return {line: 0, ch: 0};
|
|
if (pos.line >= doc.size) return {line: doc.size-1, ch: getLine(doc, doc.size-1).text.length};
|
|
var ch = pos.ch, linelen = getLine(doc, pos.line).text.length;
|
|
if (ch == null || ch > linelen) return {line: pos.line, ch: linelen};
|
|
else if (ch < 0) return {line: pos.line, ch: 0};
|
|
else return pos;
|
|
}
|
|
function isLine(doc, l) {return l >= 0 && l < doc.size;}
|
|
|
|
function setShift(view, val) {
|
|
if (val) view.sel.shift = view.sel.shift || selHead(view);
|
|
else view.sel.shift = null;
|
|
}
|
|
function setSelectionUser(cm, from, to) {
|
|
var view = cm.view, sh = view.sel.shift;
|
|
if (sh) {
|
|
sh = clipPos(view.doc, sh);
|
|
if (posLess(sh, from)) from = sh;
|
|
else if (posLess(to, sh)) to = sh;
|
|
}
|
|
setSelection(cm, from, to);
|
|
cm.curOp.userSelChange = true;
|
|
}
|
|
|
|
// Update the selection. Last two args are only used by
|
|
// updateDoc, since they have to be expressed in the line
|
|
// numbers before the update.
|
|
function setSelection(cm, from, to, isChange) {
|
|
cm.curOp.updateInput = true;
|
|
var sel = cm.view.sel, doc = cm.view.doc;
|
|
cm.view.goalColumn = null;
|
|
if (posEq(sel.from, from) && posEq(sel.to, to)) return;
|
|
if (posLess(to, from)) {var tmp = to; to = from; from = tmp;}
|
|
|
|
// Skip over hidden lines.
|
|
if (isChange || from.line != sel.from.line) {
|
|
var from1 = skipHidden(doc, from, sel.from.line, sel.from.ch, cm);
|
|
// If there is no non-hidden line left, force visibility on current line
|
|
if (!from1) cm.unfoldLines(getLine(doc, from.line).hidden.id);
|
|
else from = from1;
|
|
}
|
|
if (isChange || to.line != sel.to.line) to = skipHidden(doc, to, sel.to.line, sel.to.ch, cm);
|
|
|
|
if (posEq(from, to)) sel.inverted = false;
|
|
else if (posEq(from, sel.to)) sel.inverted = false;
|
|
else if (posEq(to, sel.from)) sel.inverted = true;
|
|
|
|
if (cm.options.autoClearEmptyLines && posEq(sel.from, sel.to)) {
|
|
var head = selHead(cm.view);
|
|
if (head.line != sel.from.line && sel.from.line < doc.size) {
|
|
var oldLine = getLine(doc, sel.from.line);
|
|
if (/^\s+$/.test(oldLine.text))
|
|
setTimeout(operation(cm, function() {
|
|
if (oldLine.parent && /^\s+$/.test(oldLine.text)) {
|
|
var no = lineNo(oldLine);
|
|
replaceRange(cm, "", {line: no, ch: 0}, {line: no, ch: oldLine.text.length});
|
|
}
|
|
}, 10));
|
|
}
|
|
}
|
|
|
|
sel.from = from; sel.to = to;
|
|
cm.curOp.selectionChanged = true;
|
|
}
|
|
|
|
function skipHidden(doc, pos, oldLine, oldCh, allowUnfold) {
|
|
function getNonHidden(dir) {
|
|
var lNo = pos.line + dir, end = dir == 1 ? doc.size : -1;
|
|
while (lNo != end) {
|
|
var line = getLine(doc, lNo);
|
|
if (!line.hidden) {
|
|
var ch = pos.ch;
|
|
if (toEnd || ch > oldCh || ch > line.text.length) ch = line.text.length;
|
|
return {line: lNo, ch: ch};
|
|
}
|
|
lNo += dir;
|
|
}
|
|
}
|
|
var line = getLine(doc, pos.line);
|
|
while (allowUnfold && line.hidden && line.hidden.handle.unfoldOnEnter)
|
|
allowUnfold.unfoldLines(line.hidden.handle);
|
|
if (!line.hidden) return pos;
|
|
var toEnd = pos.ch == line.text.length && pos.ch != oldCh;
|
|
if (pos.line >= oldLine) return getNonHidden(1) || getNonHidden(-1);
|
|
else return getNonHidden(-1) || getNonHidden(1);
|
|
}
|
|
|
|
// SCROLLING
|
|
|
|
function scrollCursorIntoView(cm) {
|
|
var view = cm.view, coords = cursorCoords(cm, selHead(view));
|
|
scrollIntoView(cm.display, coords.left, coords.top, coords.left, coords.bottom);
|
|
if (!view.focused) return;
|
|
var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null;
|
|
if (coords.top + box.top < 0) doScroll = true;
|
|
else if (coords.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) doScroll = false;
|
|
if (doScroll != null) {
|
|
var hidden = display.cursor.style.display == "none";
|
|
if (hidden) {
|
|
display.cursor.style.display = "";
|
|
display.cursor.style.left = coords.left + "px";
|
|
display.cursor.style.top = (coords.top - display.viewOffset) + "px";
|
|
}
|
|
display.cursor.scrollIntoView(doScroll);
|
|
if (hidden) display.cursor.style.display = "none";
|
|
}
|
|
}
|
|
|
|
function scrollIntoView(display, x1, y1, x2, y2) {
|
|
var scrollPos = calculateScrollPos(display, x1, y1, x2, y2);
|
|
if (scrollPos.scrollLeft != null) {display.scrollbarH.scrollLeft = display.scroller.scrollLeft = scrollPos.scrollLeft;}
|
|
if (scrollPos.scrollTop != null) {display.scrollbarV.scrollTop = display.scroller.scrollTop = scrollPos.scrollTop;}
|
|
}
|
|
|
|
function calculateScrollPos(display, x1, y1, x2, y2) {
|
|
var pt = paddingTop(display);
|
|
y1 += pt; y2 += pt;
|
|
var screen = display.scroller.clientHeight - scrollerCutOff, screentop = display.scroller.scrollTop, result = {};
|
|
var docBottom = display.scroller.scrollHeight - scrollerCutOff;
|
|
var atTop = y1 < pt + 10, atBottom = y2 + pt > docBottom - 10;
|
|
if (y1 < screentop) result.scrollTop = atTop ? 0 : Math.max(0, y1);
|
|
else if (y2 > screentop + screen) result.scrollTop = (atBottom ? docBottom : y2 - screen);
|
|
|
|
var screenw = display.scroller.clientWidth - scrollerCutOff, screenleft = display.scroller.scrollLeft;
|
|
x1 += display.gutters.offsetWidth; x2 += display.gutters.offsetWidth;
|
|
var gutterw = display.gutters.offsetWidth;
|
|
var atLeft = x1 < gutterw + 10;
|
|
if (x1 < screenleft + gutterw || atLeft) {
|
|
if (atLeft) x1 = 0;
|
|
result.scrollLeft = Math.max(0, x1 - 10 - gutterw);
|
|
} else if (x2 > screenw + screenleft - 3) {
|
|
result.scrollLeft = x2 + 10 - screenw;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
// API UTILITIES
|
|
|
|
function indentLine(cm, n, how) {
|
|
var doc = cm.view.doc;
|
|
if (!how) how = "add";
|
|
if (how == "smart") {
|
|
if (!cm.view.mode.indent) how = "prev";
|
|
else var state = getStateBefore(cm, n);
|
|
}
|
|
|
|
var tabSize = cm.options.tabSize;
|
|
var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize);
|
|
var curSpaceString = line.text.match(/^\s*/)[0], indentation;
|
|
if (how == "smart") {
|
|
indentation = cm.view.mode.indent(state, line.text.slice(curSpaceString.length), line.text);
|
|
if (indentation == Pass) how = "prev";
|
|
}
|
|
if (how == "prev") {
|
|
if (n) indentation = countColumn(getLine(doc, n-1).text, null, tabSize);
|
|
else indentation = 0;
|
|
}
|
|
else if (how == "add") indentation = curSpace + cm.options.indentUnit;
|
|
else if (how == "subtract") indentation = curSpace - cm.options.indentUnit;
|
|
indentation = Math.max(0, indentation);
|
|
var diff = indentation - curSpace;
|
|
|
|
var indentString = "", pos = 0;
|
|
if (cm.options.indentWithTabs)
|
|
for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";}
|
|
if (pos < indentation) indentString += spaceStr(indentation - pos);
|
|
|
|
if (indentString != curSpaceString)
|
|
replaceRange(cm, indentString, {line: n, ch: 0}, {line: n, ch: curSpaceString.length});
|
|
line.stateAfter = null;
|
|
}
|
|
|
|
function changeLine(cm, handle, op) {
|
|
var no = handle, line = handle, doc = cm.view.doc;
|
|
if (typeof handle == "number") line = getLine(doc, clipLine(doc, handle));
|
|
else no = lineNo(handle);
|
|
if (no == null) return null;
|
|
if (op(line, no)) regChange(cm, no, no + 1);
|
|
else return null;
|
|
return line;
|
|
}
|
|
|
|
function findPosH(cm, dir, unit, visually) {
|
|
var doc = cm.view.doc, end = selHead(cm.view), line = end.line, ch = end.ch;
|
|
var lineObj = getLine(doc, line);
|
|
function findNextLine() {
|
|
for (var l = line + dir, e = dir < 0 ? -1 : doc.size; l != e; l += dir) {
|
|
var lo = getLine(doc, l);
|
|
if (!lo.hidden || lo.hidden.handle.unfoldOnEnter) { line = l; lineObj = lo; return true; }
|
|
}
|
|
}
|
|
function moveOnce(boundToLine) {
|
|
var next = (visually ? moveVisually : moveLogically)(lineObj, ch, dir, true);
|
|
if (next == null) {
|
|
if (!boundToLine && findNextLine()) {
|
|
if (visually) ch = (dir < 0 ? lineRight : lineLeft)(lineObj);
|
|
else ch = dir < 0 ? lineObj.text.length : 0;
|
|
} else return false;
|
|
} else ch = next;
|
|
return true;
|
|
}
|
|
if (unit == "char") moveOnce();
|
|
else if (unit == "column") moveOnce(true);
|
|
else if (unit == "word") {
|
|
var sawWord = false;
|
|
for (;;) {
|
|
if (dir < 0) if (!moveOnce()) break;
|
|
if (isWordChar(lineObj.text.charAt(ch))) sawWord = true;
|
|
else if (sawWord) {if (dir < 0) {dir = 1; moveOnce();} break;}
|
|
if (dir > 0) if (!moveOnce()) break;
|
|
}
|
|
}
|
|
return {line: line, ch: ch};
|
|
}
|
|
|
|
function findWordAt(line, pos) {
|
|
var start = pos.ch, end = pos.ch;
|
|
if (line) {
|
|
if (pos.after === false || end == line.length) --start; else ++end;
|
|
var startChar = line.charAt(start);
|
|
var check = isWordChar(startChar) ? isWordChar :
|
|
/\s/.test(startChar) ? function(ch) {return /\s/.test(ch);} :
|
|
function(ch) {return !/\s/.test(ch) && !isWordChar(ch);};
|
|
while (start > 0 && check(line.charAt(start - 1))) --start;
|
|
while (end < line.length && check(line.charAt(end))) ++end;
|
|
}
|
|
return {from: {line: pos.line, ch: start}, to: {line: pos.line, ch: end}};
|
|
}
|
|
|
|
function selectLine(cm, line) {
|
|
setSelectionUser(cm, {line: line, ch: 0}, clipPos(cm.view.doc, {line: line + 1, ch: 0}));
|
|
}
|
|
|
|
// PROTOTYPE
|
|
|
|
// The publicly visible API. Note that operation(null, f) means
|
|
// 'wrap f in an operation, performed on its `this` parameter'
|
|
|
|
CodeMirror.prototype = {
|
|
getValue: function(lineSep) {
|
|
var text = [], doc = this.view.doc;
|
|
doc.iter(0, doc.size, function(line) { text.push(line.text); });
|
|
return text.join(lineSep || "\n");
|
|
},
|
|
|
|
setValue: operation(null, function(code) {
|
|
var doc = this.view.doc, top = {line: 0, ch: 0}, lastLen = getLine(doc, doc.size-1).text.length;
|
|
updateDoc(this, top, {line: doc.size - 1, ch: lastLen}, splitLines(code), top, top);
|
|
}),
|
|
|
|
getSelection: function(lineSep) { return this.getRange(this.view.sel.from, this.view.sel.to, lineSep); },
|
|
|
|
replaceSelection: operation(null, function(code, collapse) {
|
|
var sel = this.view.sel;
|
|
replaceRange1(this, splitLines(code), sel.from, sel.to, function(end) {
|
|
if (collapse == "end") return {from: end, to: end};
|
|
else if (collapse == "start") return {from: sel.from, to: sel.from};
|
|
else return {from: sel.from, to: end};
|
|
});
|
|
}),
|
|
|
|
focus: function(){window.focus(); focusInput(this); onFocus(this); fastPoll(this);},
|
|
|
|
setOption: function(option, value) {
|
|
var options = this.options;
|
|
if (options[option] == value && option != "mode") return;
|
|
options[option] = value;
|
|
if (option == "mode" || option == "indentUnit") loadMode(this);
|
|
else if (option == "readOnly" && value == "nocursor") {onBlur(this); this.display.input.blur();}
|
|
else if (option == "readOnly" && !value) {resetInput(this, true);}
|
|
else if (option == "theme") themeChanged(this);
|
|
else if (option == "lineWrapping") operation(this, wrappingChanged)(this);
|
|
else if (option == "tabSize") updateDisplay(this, true);
|
|
else if (option == "keyMap") keyMapChanged(this);
|
|
else if (option == "gutters" || option == "lineNumbers") setGuttersForLineNumbers(this.options);
|
|
else if (option == "tabindex") this.display.input.tabIndex = value;
|
|
else if (option == "viewportMargin") this.refresh();
|
|
if (option == "lineNumbers" || option == "gutters" || option == "firstLineNumber" ||
|
|
option == "theme" || option == "lineNumberFormatter")
|
|
guttersChanged(this);
|
|
if (optionHandlers.hasOwnProperty(option))
|
|
optionHandlers[option](this, value);
|
|
},
|
|
|
|
getOption: function(option) {return this.options[option];},
|
|
|
|
getMode: function() {return this.view.mode;},
|
|
|
|
undo: operation(null, function() {
|
|
var hist = this.view.history;
|
|
unredoHelper(this, hist.done, hist.undone);
|
|
}),
|
|
redo: operation(null, function() {
|
|
var hist = this.view.history;
|
|
unredoHelper(this, hist.undone, hist.done);
|
|
}),
|
|
|
|
indentLine: operation(null, function(n, dir) {
|
|
if (typeof dir != "string") {
|
|
if (dir == null) dir = this.options.smartIndent ? "smart" : "prev";
|
|
else dir = dir ? "add" : "subtract";
|
|
}
|
|
if (isLine(this.view.doc, n)) indentLine(this, n, dir);
|
|
}),
|
|
|
|
indentSelection: operation(null, function(how) {
|
|
var sel = this.view.sel;
|
|
if (posEq(sel.from, sel.to)) return indentLine(this, sel.from.line, how);
|
|
var e = sel.to.line - (sel.to.ch ? 0 : 1);
|
|
for (var i = sel.from.line; i <= e; ++i) indentLine(this, i, how);
|
|
}),
|
|
|
|
historySize: function() {
|
|
var hist = this.view.history;
|
|
return {undo: hist.done.length, redo: hist.undone.length};
|
|
},
|
|
|
|
clearHistory: function() {this.view.history = makeHistory();},
|
|
|
|
getHistory: function() {
|
|
var hist = this.view.history;
|
|
function cp(arr) {
|
|
for (var i = 0, nw = [], nwelt; i < arr.length; ++i) {
|
|
nw.push(nwelt = []);
|
|
for (var j = 0, elt = arr[i]; j < elt.length; ++j) {
|
|
var old = [], cur = elt[j];
|
|
nwelt.push({start: cur.start, added: cur.added, old: old});
|
|
for (var k = 0; k < cur.old.length; ++k) old.push(hlText(cur.old[k]));
|
|
}
|
|
}
|
|
return nw;
|
|
}
|
|
return {done: cp(hist.done), undone: cp(hist.undone)};
|
|
},
|
|
|
|
setHistory: function(histData) {
|
|
var hist = this.view.history = makeHistory();
|
|
hist.done = histData.done;
|
|
hist.undone = histData.undone;
|
|
},
|
|
|
|
getTokenAt: function(pos) {
|
|
var doc = this.view.doc;
|
|
pos = clipPos(doc, pos);
|
|
return getTokenAt(this, getLine(doc, pos.line), getStateBefore(this, pos.line), pos.ch);
|
|
},
|
|
|
|
getStateAfter: function(line) {
|
|
var doc = this.view.doc;
|
|
line = clipLine(doc, line == null ? doc.size - 1: line);
|
|
return getStateBefore(this, line + 1);
|
|
},
|
|
|
|
cursorCoords: function(start, mode) {
|
|
var pos, sel = this.view.sel;
|
|
if (start == null) start = sel.inverted;
|
|
if (typeof start == "object") pos = clipPos(this.view.doc, start);
|
|
else pos = start ? sel.from : sel.to;
|
|
return cursorCoords(this, pos, mode || "page");
|
|
},
|
|
|
|
charCoords: function(pos, mode) {
|
|
return charCoords(this, clipPos(this.view.doc, pos), mode || "page");
|
|
},
|
|
|
|
coordsChar: function(coords) {
|
|
var off = this.display.lineSpace.getBoundingClientRect();
|
|
return coordsChar(this, coords.left - off.left, coords.top - off.top);
|
|
},
|
|
|
|
markText: operation(null, function(from, to, className, options) {
|
|
var doc = this.view.doc;
|
|
from = clipPos(doc, from); to = clipPos(doc, to);
|
|
var marker = new TextMarker(this, "range", className);
|
|
if (options) for (var opt in options) if (options.hasOwnProperty(opt))
|
|
marker[opt] = options[opt];
|
|
var curLine = from.line;
|
|
doc.iter(curLine, to.line + 1, function(line) {
|
|
var span = {from: curLine == from.line ? from.ch : null,
|
|
to: curLine == to.line ? to.ch : null,
|
|
marker: marker};
|
|
line.markedSpans = (line.markedSpans || []).concat([span]);
|
|
marker.lines.push(line);
|
|
++curLine;
|
|
});
|
|
regChange(this, from.line, to.line + 1);
|
|
return marker;
|
|
}),
|
|
|
|
setBookmark: function(pos) {
|
|
var doc = this.view.doc;
|
|
pos = clipPos(doc, pos);
|
|
var marker = new TextMarker(this, "bookmark"), line = getLine(doc, pos.line);
|
|
var span = {from: pos.ch, to: pos.ch, marker: marker};
|
|
line.markedSpans = (line.markedSpans || []).concat([span]);
|
|
marker.lines.push(line);
|
|
return marker;
|
|
},
|
|
|
|
findMarksAt: function(pos) {
|
|
var doc = this.view.doc;
|
|
pos = clipPos(doc, pos);
|
|
var markers = [], spans = getLine(doc, pos.line).markedSpans;
|
|
if (spans) for (var i = 0; i < spans.length; ++i) {
|
|
var span = spans[i];
|
|
if ((span.from == null || span.from <= pos.ch) &&
|
|
(span.to == null || span.to >= pos.ch))
|
|
markers.push(span.marker);
|
|
}
|
|
return markers;
|
|
},
|
|
|
|
setGutterMarker: operation(null, function(line, gutterID, value) {
|
|
return changeLine(this, line, function(line) {
|
|
var markers = line.gutterMarkers || (line.gutterMarkers = {});
|
|
markers[gutterID] = value;
|
|
if (!value && isEmpty(markers)) line.gutterMarkers = null;
|
|
return true;
|
|
});
|
|
}),
|
|
|
|
clearGutter: operation(null, function(gutterID) {
|
|
var i = 0, cm = this, doc = cm.view.doc;
|
|
doc.iter(0, doc.size, function(line) {
|
|
if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
|
|
line.gutterMarkers[gutterID] = null;
|
|
regChange(cm, i, i + 1);
|
|
if (isEmpty(line.gutterMarkers)) line.gutterMarkers = null;
|
|
}
|
|
++i;
|
|
});
|
|
}),
|
|
|
|
setLineClass: operation(null, function(handle, className, bgClassName) {
|
|
return changeLine(this, handle, function(line) {
|
|
if (line.className != className || line.bgClassName != bgClassName) {
|
|
line.className = className;
|
|
line.bgClassName = bgClassName;
|
|
return true;
|
|
}
|
|
});
|
|
}),
|
|
|
|
addLineWidget: operation(null, function addLineWidget(handle, node, options) {
|
|
var widget = options || {};
|
|
widget.node = node;
|
|
if (widget.noHScroll) this.display.alignWidgets = true;
|
|
changeLine(this, handle, function(line) {
|
|
(line.widgets || (line.widgets = [])).push(widget);
|
|
widget.line = line;
|
|
return true;
|
|
});
|
|
return widget;
|
|
}),
|
|
|
|
removeLineWidget: operation(null, function(widget) {
|
|
var ws = widget.line.widgets, no = lineNo(widget.line);
|
|
if (no == null) return;
|
|
for (var i = 0; i < ws.length; ++i) if (ws[i] == widget) ws.splice(i--, 1);
|
|
regChange(this, no, no + 1);
|
|
}),
|
|
|
|
foldLines: operation(null, function(from, to, options) {
|
|
if (typeof from != "number") from = lineNo(from);
|
|
if (typeof to != "number") to = lineNo(to);
|
|
if (from > to) return;
|
|
var handle = options || {}, lines = handle.lines = [];
|
|
var cm = this, view = cm.view, doc = view.doc;
|
|
doc.iter(from, to, function(line) {
|
|
lines.push(line);
|
|
if (!line.hidden && line.text.length == cm.view.maxLine.text.length)
|
|
cm.curOp.updateMaxLine = true;
|
|
line.hidden = {handle: handle, prev: line.hidden};
|
|
updateLineHeight(line, 0);
|
|
});
|
|
var sel = view.sel, selFrom = sel.from, selTo = sel.to;
|
|
if (selFrom.line >= from && selFrom.line < to)
|
|
selFrom = skipHidden(doc, {line: selFrom.line, ch: 0}, selFrom.line, 0);
|
|
if (selTo.line >= from && selTo.line < to)
|
|
selTo = skipHidden(doc, {line: selTo.line, ch: 0}, selTo.line, 0);
|
|
if (selFrom != sel.from || selTo != sel.to) setSelection(this, selFrom, selTo);
|
|
regChange(cm, from, to);
|
|
return handle;
|
|
}),
|
|
|
|
unfoldLines: operation(null, function(handle) {
|
|
var from, to;
|
|
for (var i = 0; i < handle.lines.length; ++i) {
|
|
var line = handle.lines[i], hidden = line.hidden;
|
|
if (!line.parent) continue;
|
|
if (hidden && hidden.handle == handle) line.hidden = line.hidden.prev;
|
|
else for (var h = hidden; h; h = h.prev) if (h.prev && h.prev.handle == handle) h.prev = h.prev.prev;
|
|
if (hidden && !line.hidden) {
|
|
var no = lineNo(handle);
|
|
from = Math.min(from, no); to = Math.max(to, no);
|
|
updateLineHeight(line, textHeight(this.display));
|
|
if (line.text.length > this.view.maxLine.text.length) {
|
|
this.view.maxLine = line;
|
|
this.view.maxLineChanged = true;
|
|
}
|
|
}
|
|
}
|
|
if (from != null) {
|
|
regChange(this, from, to + 1);
|
|
signalLater(this, handle, "unfold");
|
|
}
|
|
}),
|
|
|
|
lineInfo: function(line) {
|
|
if (typeof line == "number") {
|
|
if (!isLine(this.view.doc, line)) return null;
|
|
var n = line;
|
|
line = getLine(this.view.doc, line);
|
|
if (!line) return null;
|
|
} else {
|
|
var n = lineNo(line);
|
|
if (n == null) return null;
|
|
}
|
|
return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,
|
|
lineClass: line.className, bgClass: line.bgClassName, widgets: line.widgets};
|
|
},
|
|
|
|
getViewport: function() { return {from: this.display.showingFrom, to: this.display.showingTo};},
|
|
|
|
addWidget: function(pos, node, scroll, vert, horiz) {
|
|
var display = this.display;
|
|
pos = cursorCoords(this, clipPos(this.view.doc, pos));
|
|
var top = pos.top, left = pos.left;
|
|
node.style.position = "absolute";
|
|
display.sizer.appendChild(node);
|
|
if (vert == "over") top = pos.top;
|
|
else if (vert == "near") {
|
|
var vspace = Math.max(display.wrapper.clientHeight, this.view.doc.height),
|
|
hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth);
|
|
if (pos.bottom + node.offsetHeight > vspace && pos.top > node.offsetHeight)
|
|
top = pos.top - node.offsetHeight;
|
|
if (left + node.offsetWidth > hspace)
|
|
left = hspace - node.offsetWidth;
|
|
}
|
|
node.style.top = (top + paddingTop(display)) + "px";
|
|
node.style.left = node.style.right = "";
|
|
if (horiz == "right") {
|
|
left = display.sizer.clientWidth - node.offsetWidth;
|
|
node.style.right = "0px";
|
|
} else {
|
|
if (horiz == "left") left = 0;
|
|
else if (horiz == "middle") left = (display.sizer.clientWidth - node.offsetWidth) / 2;
|
|
node.style.left = left + "px";
|
|
}
|
|
if (scroll)
|
|
scrollIntoView(display, left, top, left + node.offsetWidth, top + node.offsetHeight);
|
|
},
|
|
|
|
lineCount: function() {return this.view.doc.size;},
|
|
|
|
clipPos: function(pos) {return clipPos(this.view.doc, pos);},
|
|
|
|
getCursor: function(start) {
|
|
var sel = this.view.sel;
|
|
if (start == null) start = sel.inverted;
|
|
return copyPos(start ? sel.from : sel.to);
|
|
},
|
|
|
|
somethingSelected: function() {return !posEq(this.view.sel.from, this.view.sel.to);},
|
|
|
|
setCursor: operation(null, function(line, ch, user) {
|
|
var pos = typeof line == "number" ? {line: line, ch: ch || 0} : line;
|
|
(user ? setSelectionUser : setSelection)(this, pos, pos);
|
|
}),
|
|
|
|
setSelection: operation(null, function(from, to, user) {
|
|
var doc = this.view.doc;
|
|
(user ? setSelectionUser : setSelection)(this, clipPos(doc, from), clipPos(doc, to || from));
|
|
}),
|
|
|
|
getLine: function(line) {var l = this.getLineHandle(line); return l && l.text;},
|
|
|
|
getLineHandle: function(line) {
|
|
var doc = this.view.doc;
|
|
if (isLine(doc, line)) return getLine(doc, line);
|
|
},
|
|
|
|
getLineNumber: function(line) {return lineNo(line);},
|
|
|
|
setLine: operation(null, function(line, text) {
|
|
if (isLine(this.view.doc, line))
|
|
replaceRange(this, text, {line: line, ch: 0}, {line: line, ch: getLine(this.view.doc, line).text.length});
|
|
}),
|
|
|
|
removeLine: operation(null, function(line) {
|
|
if (isLine(this.view.doc, line))
|
|
replaceRange(this, "", {line: line, ch: 0}, clipPos(this.view.doc, {line: line+1, ch: 0}));
|
|
}),
|
|
|
|
replaceRange: operation(null, function(code, from, to) {
|
|
var doc = this.view.doc;
|
|
from = clipPos(doc, from);
|
|
to = to ? clipPos(doc, to) : from;
|
|
return replaceRange(this, code, from, to);
|
|
}),
|
|
|
|
getRange: function(from, to, lineSep) {
|
|
var doc = this.view.doc;
|
|
from = clipPos(doc, from); to = clipPos(doc, to);
|
|
var l1 = from.line, l2 = to.line;
|
|
if (l1 == l2) return getLine(doc, l1).text.slice(from.ch, to.ch);
|
|
var code = [getLine(doc, l1).text.slice(from.ch)];
|
|
doc.iter(l1 + 1, l2, function(line) { code.push(line.text); });
|
|
code.push(getLine(doc, l2).text.slice(0, to.ch));
|
|
return code.join(lineSep || "\n");
|
|
},
|
|
|
|
triggerOnKeyDown: operation(null, onKeyDown),
|
|
|
|
execCommand: function(cmd) {return commands[cmd](this);},
|
|
|
|
// Stuff used by commands, probably not much use to outside code.
|
|
moveH: operation(null, function(dir, unit) {
|
|
var sel = this.view.sel, pos = dir < 0 ? sel.from : sel.to;
|
|
if (sel.shift || posEq(sel.from, sel.to)) pos = findPosH(this, dir, unit, true);
|
|
setSelectionUser(this, pos, pos);
|
|
}),
|
|
|
|
deleteH: operation(null, function(dir, unit) {
|
|
var sel = this.view.sel;
|
|
if (!posEq(sel.from, sel.to)) replaceRange(this, "", sel.from, sel.to);
|
|
else replaceRange(this, "", sel.from, findPosH(this, dir, unit, false));
|
|
this.curOp.userSelChange = true;
|
|
}),
|
|
|
|
moveV: operation(null, function(dir, unit) {
|
|
var view = this.view, doc = view.doc, display = this.display;
|
|
var dist = 0, cur = selHead(view), pos = cursorCoords(this, cur, "div");
|
|
var x = pos.left, y;
|
|
if (view.goalColumn != null) x = view.goalColumn;
|
|
if (unit == "page") {
|
|
var pageSize = Math.min(display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight);
|
|
y = pos.top + dir * pageSize;
|
|
} else if (unit == "line") {
|
|
y = dir > 0 ? pos.bottom + 3 : pos.top - 3;
|
|
}
|
|
do {
|
|
var target = coordsChar(this, x, y);
|
|
y += dir * 5;
|
|
} while (target.outside && (dir < 0 ? y > 0 : y < doc.height));
|
|
|
|
if (unit == "page") display.scrollbarV.scrollTop += charCoords(this, target, "div").top - pos.top;
|
|
setSelectionUser(this, target, target);
|
|
view.goalColumn = x;
|
|
}),
|
|
|
|
toggleOverwrite: function() {
|
|
if (this.view.overwrite = !this.view.overwrite)
|
|
this.display.cursor.className += " CodeMirror-overwrite";
|
|
else
|
|
this.display.cursor.className = this.display.cursor.className.replace(" CodeMirror-overwrite", "");
|
|
},
|
|
|
|
posFromIndex: function(off) {
|
|
var lineNo = 0, ch, doc = this.view.doc;
|
|
doc.iter(0, doc.size, function(line) {
|
|
var sz = line.text.length + 1;
|
|
if (sz > off) { ch = off; return true; }
|
|
off -= sz;
|
|
++lineNo;
|
|
});
|
|
return clipPos(doc, {line: lineNo, ch: ch});
|
|
},
|
|
indexFromPos: function (coords) {
|
|
if (coords.line < 0 || coords.ch < 0) return 0;
|
|
var index = coords.ch;
|
|
this.view.doc.iter(0, coords.line, function (line) {
|
|
index += line.text.length + 1;
|
|
});
|
|
return index;
|
|
},
|
|
|
|
scrollTo: function(x, y) {
|
|
if (x != null) this.display.scrollbarH.scrollLeft = this.display.scroller.scrollLeft = x;
|
|
if (y != null) this.display.scrollbarV.scrollTop = this.display.scroller.scrollTop = y;
|
|
updateDisplay(this, []);
|
|
},
|
|
getScrollInfo: function() {
|
|
var scroller = this.display.scroller, co = scrollerCutOff;
|
|
return {left: scroller.scrollLeft, top: scroller.scrollTop,
|
|
height: scroller.scrollHeight - co, width: scroller.scrollWidth - co,
|
|
clientHeight: scroller.clientHeight - co, clientWidth: scroller.clientWidth - co};
|
|
},
|
|
|
|
setSize: function(width, height) {
|
|
function interpret(val) {
|
|
val = String(val);
|
|
return /^\d+$/.test(val) ? val + "px" : val;
|
|
}
|
|
if (width != null) this.display.wrapper.style.width = interpret(width);
|
|
if (height != null) this.display.wrapper.style.height = interpret(height);
|
|
this.refresh();
|
|
},
|
|
|
|
on: function(type, f) {on(this, type, f);},
|
|
off: function(type, f) {off(this, type, f);},
|
|
|
|
operation: function(f){return operation(this, f)();},
|
|
compoundChange: function(f){return compoundChange(this, f);},
|
|
|
|
refresh: function(){
|
|
updateDisplay(this, true, this.view.scrollTop);
|
|
if (this.display.scrollbarV.scrollHeight > this.view.scrollTop)
|
|
this.display.scrollbarV.scrollTop = this.view.scrollTop;
|
|
},
|
|
|
|
getInputField: function(){return this.display.input;},
|
|
getWrapperElement: function(){return this.display.wrapper;},
|
|
getScrollerElement: function(){return this.display.scroller;},
|
|
getGutterElement: function(){return this.display.gutters;}
|
|
};
|
|
|
|
// OPTION DEFAULTS
|
|
|
|
// The default configuration options.
|
|
var defaults = CodeMirror.defaults = {
|
|
value: "",
|
|
mode: null,
|
|
theme: "default",
|
|
indentUnit: 2,
|
|
indentWithTabs: false,
|
|
smartIndent: true,
|
|
tabSize: 4,
|
|
keyMap: "default",
|
|
extraKeys: null,
|
|
electricChars: true,
|
|
autoClearEmptyLines: false,
|
|
onKeyEvent: null,
|
|
onDragEvent: null,
|
|
lineWrapping: false,
|
|
lineNumbers: false,
|
|
gutters: [],
|
|
fixedGutter: false,
|
|
firstLineNumber: 1,
|
|
readOnly: false,
|
|
dragDrop: true,
|
|
cursorBlinkRate: 530,
|
|
cursorHeight: 1,
|
|
workTime: 100,
|
|
workDelay: 200,
|
|
flattenSpans: true,
|
|
pollInterval: 100,
|
|
undoDepth: 40,
|
|
viewportMargin: 10,
|
|
tabindex: null,
|
|
autofocus: null,
|
|
lineNumberFormatter: function(integer) { return integer; }
|
|
};
|
|
|
|
// MODE DEFINITION AND QUERYING
|
|
|
|
// Known modes, by name and by MIME
|
|
var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {};
|
|
|
|
CodeMirror.defineMode = function(name, mode) {
|
|
if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name;
|
|
if (arguments.length > 2) {
|
|
mode.dependencies = [];
|
|
for (var i = 2; i < arguments.length; ++i) mode.dependencies.push(arguments[i]);
|
|
}
|
|
modes[name] = mode;
|
|
};
|
|
|
|
CodeMirror.defineMIME = function(mime, spec) {
|
|
mimeModes[mime] = spec;
|
|
};
|
|
|
|
CodeMirror.resolveMode = function(spec) {
|
|
if (typeof spec == "string" && mimeModes.hasOwnProperty(spec))
|
|
spec = mimeModes[spec];
|
|
else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec))
|
|
return CodeMirror.resolveMode("application/xml");
|
|
if (typeof spec == "string") return {name: spec};
|
|
else return spec || {name: "null"};
|
|
};
|
|
|
|
CodeMirror.getMode = function(options, spec) {
|
|
var spec = CodeMirror.resolveMode(spec);
|
|
var mfactory = modes[spec.name];
|
|
if (!mfactory) return CodeMirror.getMode(options, "text/plain");
|
|
var modeObj = mfactory(options, spec);
|
|
if (modeExtensions.hasOwnProperty(spec.name)) {
|
|
var exts = modeExtensions[spec.name];
|
|
for (var prop in exts) if (exts.hasOwnProperty(prop)) modeObj[prop] = exts[prop];
|
|
}
|
|
modeObj.name = spec.name;
|
|
return modeObj;
|
|
};
|
|
|
|
CodeMirror.defineMode("null", function() {
|
|
return {token: function(stream) {stream.skipToEnd();}};
|
|
});
|
|
CodeMirror.defineMIME("text/plain", "null");
|
|
|
|
var modeExtensions = CodeMirror.modeExtensions = {};
|
|
CodeMirror.extendMode = function(mode, properties) {
|
|
var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});
|
|
for (var prop in properties) if (properties.hasOwnProperty(prop))
|
|
exts[prop] = properties[prop];
|
|
};
|
|
|
|
// EXTENSIONS
|
|
|
|
CodeMirror.defineExtension = function(name, func) {
|
|
CodeMirror.prototype[name] = func;
|
|
};
|
|
var optionHandlers = CodeMirror.optionHandlers = {};
|
|
CodeMirror.defineOption = function(name, deflt, handler) {
|
|
CodeMirror.defaults[name] = deflt;
|
|
optionHandlers[name] = handler;
|
|
};
|
|
|
|
var initHooks = [];
|
|
CodeMirror.defineInitHook = function(f) {initHooks.push(f);};
|
|
|
|
// MODE STATE HANDLING
|
|
|
|
// Utility functions for working with state. Exported because modes
|
|
// sometimes need to do this.
|
|
function copyState(mode, state) {
|
|
if (state === true) return state;
|
|
if (mode.copyState) return mode.copyState(state);
|
|
var nstate = {};
|
|
for (var n in state) {
|
|
var val = state[n];
|
|
if (val instanceof Array) val = val.concat([]);
|
|
nstate[n] = val;
|
|
}
|
|
return nstate;
|
|
}
|
|
CodeMirror.copyState = copyState;
|
|
|
|
function startState(mode, a1, a2) {
|
|
return mode.startState ? mode.startState(a1, a2) : true;
|
|
}
|
|
CodeMirror.startState = startState;
|
|
|
|
CodeMirror.innerMode = function(mode, state) {
|
|
while (mode.innerMode) {
|
|
var info = mode.innerMode(state);
|
|
state = info.state;
|
|
mode = info.mode;
|
|
}
|
|
return info || {mode: mode, state: state};
|
|
};
|
|
|
|
// STANDARD COMMANDS
|
|
|
|
var commands = CodeMirror.commands = {
|
|
selectAll: function(cm) {cm.setSelection({line: 0, ch: 0}, {line: cm.lineCount() - 1});},
|
|
killLine: function(cm) {
|
|
var from = cm.getCursor(true), to = cm.getCursor(false), sel = !posEq(from, to);
|
|
if (!sel && cm.getLine(from.line).length == from.ch)
|
|
cm.replaceRange("", from, {line: from.line + 1, ch: 0});
|
|
else cm.replaceRange("", from, sel ? to : {line: from.line});
|
|
},
|
|
deleteLine: function(cm) {var l = cm.getCursor().line; cm.replaceRange("", {line: l, ch: 0}, {line: l});},
|
|
undo: function(cm) {cm.undo();},
|
|
redo: function(cm) {cm.redo();},
|
|
goDocStart: function(cm) {cm.setCursor(0, 0, true);},
|
|
goDocEnd: function(cm) {cm.setSelection({line: cm.lineCount() - 1}, null, true);},
|
|
goLineStart: function(cm) {
|
|
var line = cm.getCursor().line;
|
|
cm.setCursor(line, lineStart(cm.getLineHandle(line)), true);
|
|
},
|
|
goLineStartSmart: function(cm) {
|
|
var cur = cm.getCursor(), line = cm.getLineHandle(cur.line), order = getOrder(line);
|
|
if (!order || order[0].level == 0) {
|
|
var firstNonWS = Math.max(0, line.text.search(/\S/));
|
|
cm.setCursor(cur.line, cur.ch <= firstNonWS && cur.ch ? 0 : firstNonWS, true);
|
|
} else cm.setCursor(cur.line, lineStart(line), true);
|
|
},
|
|
goLineEnd: function(cm) {
|
|
var line = cm.getCursor().line;
|
|
cm.setCursor(line, lineEnd(cm.getLineHandle(line)), true);
|
|
},
|
|
goLineUp: function(cm) {cm.moveV(-1, "line");},
|
|
goLineDown: function(cm) {cm.moveV(1, "line");},
|
|
goPageUp: function(cm) {cm.moveV(-1, "page");},
|
|
goPageDown: function(cm) {cm.moveV(1, "page");},
|
|
goCharLeft: function(cm) {cm.moveH(-1, "char");},
|
|
goCharRight: function(cm) {cm.moveH(1, "char");},
|
|
goColumnLeft: function(cm) {cm.moveH(-1, "column");},
|
|
goColumnRight: function(cm) {cm.moveH(1, "column");},
|
|
goWordLeft: function(cm) {cm.moveH(-1, "word");},
|
|
goWordRight: function(cm) {cm.moveH(1, "word");},
|
|
delCharBefore: function(cm) {cm.deleteH(-1, "char");},
|
|
delCharAfter: function(cm) {cm.deleteH(1, "char");},
|
|
delWordBefore: function(cm) {cm.deleteH(-1, "word");},
|
|
delWordAfter: function(cm) {cm.deleteH(1, "word");},
|
|
indentAuto: function(cm) {cm.indentSelection("smart");},
|
|
indentMore: function(cm) {cm.indentSelection("add");},
|
|
indentLess: function(cm) {cm.indentSelection("subtract");},
|
|
insertTab: function(cm) {cm.replaceSelection("\t", "end");},
|
|
defaultTab: function(cm) {
|
|
if (cm.somethingSelected()) cm.indentSelection("add");
|
|
else cm.replaceSelection("\t", "end");
|
|
},
|
|
transposeChars: function(cm) {
|
|
var cur = cm.getCursor(), line = cm.getLine(cur.line);
|
|
if (cur.ch > 0 && cur.ch < line.length - 1)
|
|
cm.replaceRange(line.charAt(cur.ch) + line.charAt(cur.ch - 1),
|
|
{line: cur.line, ch: cur.ch - 1}, {line: cur.line, ch: cur.ch + 1});
|
|
},
|
|
newlineAndIndent: function(cm) {
|
|
cm.replaceSelection("\n", "end");
|
|
cm.indentLine(cm.getCursor().line);
|
|
},
|
|
toggleOverwrite: function(cm) {cm.toggleOverwrite();}
|
|
};
|
|
|
|
// STANDARD KEYMAPS
|
|
|
|
var keyMap = CodeMirror.keyMap = {};
|
|
keyMap.basic = {
|
|
"Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
|
|
"End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
|
|
"Delete": "delCharAfter", "Backspace": "delCharBefore", "Tab": "defaultTab", "Shift-Tab": "indentAuto",
|
|
"Enter": "newlineAndIndent", "Insert": "toggleOverwrite"
|
|
};
|
|
// Note that the save and find-related commands aren't defined by
|
|
// default. Unknown commands are simply ignored.
|
|
keyMap.pcDefault = {
|
|
"Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
|
|
"Ctrl-Home": "goDocStart", "Alt-Up": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Down": "goDocEnd",
|
|
"Ctrl-Left": "goWordLeft", "Ctrl-Right": "goWordRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
|
|
"Ctrl-Backspace": "delWordBefore", "Ctrl-Delete": "delWordAfter", "Ctrl-S": "save", "Ctrl-F": "find",
|
|
"Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
|
|
"Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
|
|
fallthrough: "basic"
|
|
};
|
|
keyMap.macDefault = {
|
|
"Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
|
|
"Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goWordLeft",
|
|
"Alt-Right": "goWordRight", "Cmd-Left": "goLineStart", "Cmd-Right": "goLineEnd", "Alt-Backspace": "delWordBefore",
|
|
"Ctrl-Alt-Backspace": "delWordAfter", "Alt-Delete": "delWordAfter", "Cmd-S": "save", "Cmd-F": "find",
|
|
"Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
|
|
"Cmd-[": "indentLess", "Cmd-]": "indentMore",
|
|
fallthrough: ["basic", "emacsy"]
|
|
};
|
|
keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;
|
|
keyMap.emacsy = {
|
|
"Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
|
|
"Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
|
|
"Ctrl-V": "goPageUp", "Shift-Ctrl-V": "goPageDown", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore",
|
|
"Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars"
|
|
};
|
|
|
|
// KEYMAP DISPATCH
|
|
|
|
function getKeyMap(val) {
|
|
if (typeof val == "string") return keyMap[val];
|
|
else return val;
|
|
}
|
|
|
|
function lookupKey(name, extraMap, map, handle, stop) {
|
|
function lookup(map) {
|
|
map = getKeyMap(map);
|
|
var found = map[name];
|
|
if (found === false) {
|
|
if (stop) stop();
|
|
return true;
|
|
}
|
|
if (found != null && handle(found)) return true;
|
|
if (map.nofallthrough) {
|
|
if (stop) stop();
|
|
return true;
|
|
}
|
|
var fallthrough = map.fallthrough;
|
|
if (fallthrough == null) return false;
|
|
if (Object.prototype.toString.call(fallthrough) != "[object Array]")
|
|
return lookup(fallthrough);
|
|
for (var i = 0, e = fallthrough.length; i < e; ++i) {
|
|
if (lookup(fallthrough[i])) return true;
|
|
}
|
|
return false;
|
|
}
|
|
if (extraMap && lookup(extraMap)) return true;
|
|
return lookup(map);
|
|
}
|
|
function isModifierKey(event) {
|
|
var name = keyNames[e_prop(event, "keyCode")];
|
|
return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod";
|
|
}
|
|
CodeMirror.isModifierKey = isModifierKey;
|
|
|
|
// FROMTEXTAREA
|
|
|
|
CodeMirror.fromTextArea = function(textarea, options) {
|
|
if (!options) options = {};
|
|
options.value = textarea.value;
|
|
if (!options.tabindex && textarea.tabindex)
|
|
options.tabindex = textarea.tabindex;
|
|
// Set autofocus to true if this textarea is focused, or if it has
|
|
// autofocus and no other element is focused.
|
|
if (options.autofocus == null) {
|
|
var hasFocus = document.body;
|
|
// doc.activeElement occasionally throws on IE
|
|
try { hasFocus = document.activeElement; } catch(e) {}
|
|
options.autofocus = hasFocus == textarea ||
|
|
textarea.getAttribute("autofocus") != null && hasFocus == document.body;
|
|
}
|
|
|
|
function save() {textarea.value = cm.getValue();}
|
|
if (textarea.form) {
|
|
// Deplorable hack to make the submit method do the right thing.
|
|
on(textarea.form, "submit", save);
|
|
if (typeof textarea.form.submit == "function") {
|
|
var realSubmit = textarea.form.submit;
|
|
textarea.form.submit = function wrappedSubmit() {
|
|
save();
|
|
textarea.form.submit = realSubmit;
|
|
textarea.form.submit();
|
|
textarea.form.submit = wrappedSubmit;
|
|
};
|
|
}
|
|
}
|
|
|
|
textarea.style.display = "none";
|
|
var cm = CodeMirror(function(node) {
|
|
textarea.parentNode.insertBefore(node, textarea.nextSibling);
|
|
}, options);
|
|
cm.save = save;
|
|
cm.getTextArea = function() { return textarea; };
|
|
cm.toTextArea = function() {
|
|
save();
|
|
textarea.parentNode.removeChild(cm.getWrapperElement());
|
|
textarea.style.display = "";
|
|
if (textarea.form) {
|
|
off(textarea.form, "submit", save);
|
|
if (typeof textarea.form.submit == "function")
|
|
textarea.form.submit = realSubmit;
|
|
}
|
|
};
|
|
return cm;
|
|
};
|
|
|
|
// STRING STREAM
|
|
|
|
// Fed to the mode parsers, provides helper functions to make
|
|
// parsers more succinct.
|
|
|
|
// The character stream used by a mode's parser.
|
|
function StringStream(string, tabSize) {
|
|
this.pos = this.start = 0;
|
|
this.string = string;
|
|
this.tabSize = tabSize || 8;
|
|
}
|
|
|
|
StringStream.prototype = {
|
|
eol: function() {return this.pos >= this.string.length;},
|
|
sol: function() {return this.pos == 0;},
|
|
peek: function() {return this.string.charAt(this.pos) || undefined;},
|
|
next: function() {
|
|
if (this.pos < this.string.length)
|
|
return this.string.charAt(this.pos++);
|
|
},
|
|
eat: function(match) {
|
|
var ch = this.string.charAt(this.pos);
|
|
if (typeof match == "string") var ok = ch == match;
|
|
else var ok = ch && (match.test ? match.test(ch) : match(ch));
|
|
if (ok) {++this.pos; return ch;}
|
|
},
|
|
eatWhile: function(match) {
|
|
var start = this.pos;
|
|
while (this.eat(match)){}
|
|
return this.pos > start;
|
|
},
|
|
eatSpace: function() {
|
|
var start = this.pos;
|
|
while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos;
|
|
return this.pos > start;
|
|
},
|
|
skipToEnd: function() {this.pos = this.string.length;},
|
|
skipTo: function(ch) {
|
|
var found = this.string.indexOf(ch, this.pos);
|
|
if (found > -1) {this.pos = found; return true;}
|
|
},
|
|
backUp: function(n) {this.pos -= n;},
|
|
column: function() {return countColumn(this.string, this.start, this.tabSize);},
|
|
indentation: function() {return countColumn(this.string, null, this.tabSize);},
|
|
match: function(pattern, consume, caseInsensitive) {
|
|
if (typeof pattern == "string") {
|
|
var cased = function(str) {return caseInsensitive ? str.toLowerCase() : str;};
|
|
if (cased(this.string).indexOf(cased(pattern), this.pos) == this.pos) {
|
|
if (consume !== false) this.pos += pattern.length;
|
|
return true;
|
|
}
|
|
} else {
|
|
var match = this.string.slice(this.pos).match(pattern);
|
|
if (match && match.index > 0) return null;
|
|
if (match && consume !== false) this.pos += match[0].length;
|
|
return match;
|
|
}
|
|
},
|
|
current: function(){return this.string.slice(this.start, this.pos);}
|
|
};
|
|
CodeMirror.StringStream = StringStream;
|
|
|
|
// TEXTMARKERS
|
|
|
|
function TextMarker(cm, type, style) {
|
|
this.lines = [];
|
|
this.type = type;
|
|
this.cm = cm;
|
|
if (style) this.style = style;
|
|
}
|
|
|
|
TextMarker.prototype.clear = function() {
|
|
startOperation(this.cm);
|
|
var min = null, max = null;
|
|
for (var i = 0; i < this.lines.length; ++i) {
|
|
var line = this.lines[i];
|
|
var span = getMarkedSpanFor(line.markedSpans, this);
|
|
if (span.from != null) min = lineNo(line);
|
|
if (span.to != null) max = lineNo(line);
|
|
line.markedSpans = removeMarkedSpan(line.markedSpans, span);
|
|
}
|
|
if (min != null) regChange(this.cm, min, max + 1);
|
|
this.lines.length = 0;
|
|
this.explicitlyCleared = true;
|
|
endOperation(this.cm);
|
|
};
|
|
|
|
TextMarker.prototype.find = function() {
|
|
var from, to;
|
|
for (var i = 0; i < this.lines.length; ++i) {
|
|
var line = this.lines[i];
|
|
var span = getMarkedSpanFor(line.markedSpans, this);
|
|
if (span.from != null || span.to != null) {
|
|
var found = lineNo(line);
|
|
if (span.from != null) from = {line: found, ch: span.from};
|
|
if (span.to != null) to = {line: found, ch: span.to};
|
|
}
|
|
}
|
|
if (this.type == "bookmark") return from;
|
|
return from && {from: from, to: to};
|
|
};
|
|
|
|
// TEXTMARKER SPANS
|
|
|
|
function getMarkedSpanFor(spans, marker) {
|
|
if (spans) for (var i = 0; i < spans.length; ++i) {
|
|
var span = spans[i];
|
|
if (span.marker == marker) return span;
|
|
}
|
|
}
|
|
function removeMarkedSpan(spans, span) {
|
|
for (var r, i = 0; i < spans.length; ++i)
|
|
if (spans[i] != span) (r || (r = [])).push(spans[i]);
|
|
return r;
|
|
}
|
|
|
|
function markedSpansBefore(old, startCh, endCh) {
|
|
if (old) for (var i = 0, nw; i < old.length; ++i) {
|
|
var span = old[i], marker = span.marker;
|
|
var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);
|
|
if (startsBefore || marker.type == "bookmark" && span.from == startCh && span.from != endCh) {
|
|
var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh);
|
|
(nw || (nw = [])).push({from: span.from,
|
|
to: endsAfter ? null : span.to,
|
|
marker: marker});
|
|
}
|
|
}
|
|
return nw;
|
|
}
|
|
|
|
function markedSpansAfter(old, endCh) {
|
|
if (old) for (var i = 0, nw; i < old.length; ++i) {
|
|
var span = old[i], marker = span.marker;
|
|
var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);
|
|
if (endsAfter || marker.type == "bookmark" && span.from == endCh) {
|
|
var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh);
|
|
(nw || (nw = [])).push({from: startsBefore ? null : span.from - endCh,
|
|
to: span.to == null ? null : span.to - endCh,
|
|
marker: marker});
|
|
}
|
|
}
|
|
return nw;
|
|
}
|
|
|
|
function updateMarkedSpans(oldFirst, oldLast, startCh, endCh, newText) {
|
|
if (!oldFirst && !oldLast) return newText;
|
|
// Get the spans that 'stick out' on both sides
|
|
var first = markedSpansBefore(oldFirst, startCh);
|
|
var last = markedSpansAfter(oldLast, endCh);
|
|
|
|
// Next, merge those two ends
|
|
var sameLine = newText.length == 1, offset = lst(newText).length + (sameLine ? startCh : 0);
|
|
if (first) {
|
|
// Fix up .to properties of first
|
|
for (var i = 0; i < first.length; ++i) {
|
|
var span = first[i];
|
|
if (span.to == null) {
|
|
var found = getMarkedSpanFor(last, span.marker);
|
|
if (!found) span.to = startCh;
|
|
else if (sameLine) span.to = found.to == null ? null : found.to + offset;
|
|
}
|
|
}
|
|
}
|
|
if (last) {
|
|
// Fix up .from in last (or move them into first in case of sameLine)
|
|
for (var i = 0; i < last.length; ++i) {
|
|
var span = last[i];
|
|
if (span.to != null) span.to += offset;
|
|
if (span.from == null) {
|
|
var found = getMarkedSpanFor(first, span.marker);
|
|
if (!found) {
|
|
span.from = offset;
|
|
if (sameLine) (first || (first = [])).push(span);
|
|
}
|
|
} else {
|
|
span.from += offset;
|
|
if (sameLine) (first || (first = [])).push(span);
|
|
}
|
|
}
|
|
}
|
|
|
|
var newMarkers = [newHL(newText[0], first)];
|
|
if (!sameLine) {
|
|
// Fill gap with whole-line-spans
|
|
var gap = newText.length - 2, gapMarkers;
|
|
if (gap > 0 && first)
|
|
for (var i = 0; i < first.length; ++i)
|
|
if (first[i].to == null)
|
|
(gapMarkers || (gapMarkers = [])).push({from: null, to: null, marker: first[i].marker});
|
|
for (var i = 0; i < gap; ++i)
|
|
newMarkers.push(newHL(newText[i+1], gapMarkers));
|
|
newMarkers.push(newHL(lst(newText), last));
|
|
}
|
|
return newMarkers;
|
|
}
|
|
|
|
// hl stands for history-line, a data structure that can be either a
|
|
// string (line without markers) or a {text, markedSpans} object.
|
|
function hlText(val) { return typeof val == "string" ? val : val.text; }
|
|
function hlSpans(val) {
|
|
if (typeof val == "string") return null;
|
|
var spans = val.markedSpans, out = null;
|
|
for (var i = 0; i < spans.length; ++i) {
|
|
if (spans[i].marker.explicitlyCleared) { if (!out) out = spans.slice(0, i); }
|
|
else if (out) out.push(spans[i]);
|
|
}
|
|
return !out ? spans : out.length ? out : null;
|
|
}
|
|
function newHL(text, spans) { return spans ? {text: text, markedSpans: spans} : text; }
|
|
|
|
function detachMarkedSpans(line) {
|
|
var spans = line.markedSpans;
|
|
if (!spans) return;
|
|
for (var i = 0; i < spans.length; ++i) {
|
|
var lines = spans[i].marker.lines;
|
|
var ix = indexOf(lines, line);
|
|
lines.splice(ix, 1);
|
|
}
|
|
line.markedSpans = null;
|
|
}
|
|
|
|
function attachMarkedSpans(line, spans) {
|
|
if (!spans) return;
|
|
for (var i = 0; i < spans.length; ++i)
|
|
var marker = spans[i].marker.lines.push(line);
|
|
line.markedSpans = spans;
|
|
}
|
|
|
|
// LINE DATA STRUCTURE
|
|
|
|
// Line objects. These hold state related to a line, including
|
|
// highlighting info (the styles array).
|
|
function makeLine(text, markedSpans, height) {
|
|
var line = {text: text, height: height};
|
|
attachMarkedSpans(line, markedSpans);
|
|
return line;
|
|
}
|
|
|
|
function updateLine(cm, line, text, markedSpans) {
|
|
line.text = text;
|
|
line.stateAfter = line.styles = null;
|
|
if (line.order != null) line.order = null;
|
|
detachMarkedSpans(line);
|
|
attachMarkedSpans(line, markedSpans);
|
|
signalLater(cm, line, "change");
|
|
}
|
|
|
|
function cleanUpLine(line) {
|
|
line.parent = null;
|
|
detachMarkedSpans(line);
|
|
}
|
|
|
|
// Run the given mode's parser over a line, update the styles
|
|
// array, which contains alternating fragments of text and CSS
|
|
// classes.
|
|
function highlightLine(cm, line, state) {
|
|
var mode = cm.view.mode, flattenSpans = cm.options.flattenSpans;
|
|
var changed = !line.styles, pos = 0, curText = "", curStyle = null;
|
|
var stream = new StringStream(line.text, cm.options.tabSize), st = line.styles || (line.styles = []);
|
|
if (line.text == "" && mode.blankLine) mode.blankLine(state);
|
|
while (!stream.eol()) {
|
|
var style = mode.token(stream, state), substr = stream.current();
|
|
stream.start = stream.pos;
|
|
if (!flattenSpans || curStyle != style) {
|
|
if (curText) {
|
|
changed = changed || pos >= st.length || curText != st[pos] || curStyle != st[pos+1];
|
|
st[pos++] = curText; st[pos++] = curStyle;
|
|
}
|
|
curText = substr; curStyle = style;
|
|
} else curText = curText + substr;
|
|
// Give up when line is ridiculously long
|
|
if (stream.pos > 5000) break;
|
|
}
|
|
if (curText) {
|
|
changed = changed || pos >= st.length || curText != st[pos] || curStyle != st[pos+1];
|
|
st[pos++] = curText; st[pos++] = curStyle;
|
|
}
|
|
if (stream.pos > 5000) st[pos++] = line.text.slice(stream.pos); st[pos++] = null;
|
|
if (pos != st.length) { st.length = pos; changed = true; }
|
|
return changed;
|
|
}
|
|
|
|
// Lightweight form of highlight -- proceed over this line and
|
|
// update state, but don't save a style array.
|
|
function processLine(cm, line, state) {
|
|
var mode = cm.view.mode;
|
|
var stream = new StringStream(line.text, cm.options.tabSize);
|
|
if (line.text == "" && mode.blankLine) mode.blankLine(state);
|
|
while (!stream.eol() && stream.pos <= 5000) {
|
|
mode.token(stream, state);
|
|
stream.start = stream.pos;
|
|
}
|
|
}
|
|
|
|
// Fetch the parser token for a given character. Useful for hacks
|
|
// that want to inspect the mode state (say, for completion).
|
|
function getTokenAt(cm, line, state, ch) {
|
|
var mode = cm.view.mode;
|
|
var txt = line.text, stream = new StringStream(txt, cm.options.tabSize);
|
|
while (stream.pos < ch && !stream.eol()) {
|
|
stream.start = stream.pos;
|
|
var style = mode.token(stream, state);
|
|
}
|
|
return {start: stream.start,
|
|
end: stream.pos,
|
|
string: stream.current(),
|
|
className: style || null,
|
|
state: state};
|
|
}
|
|
|
|
var styleToClassCache = {};
|
|
function styleToClass(style) {
|
|
if (!style) return null;
|
|
return styleToClassCache[style] ||
|
|
(styleToClassCache[style] = "cm-" + style.replace(/ +/g, " cm-"));
|
|
}
|
|
|
|
// Produces an HTML fragment for the line, taking selection,
|
|
// marking, and highlighting into account.
|
|
function buildLineContent(line, tabSize, wrapAt, compensateForWrapping) {
|
|
var first = true, col = 0, specials = /[\t\u0000-\u0019\u200b\u2028\u2029\uFEFF]/g;
|
|
var pre = elt("pre");
|
|
if (line.className) pre.className = line.className;
|
|
function span_(text, style) {
|
|
if (!text) return;
|
|
// Work around a bug where, in some compat modes, IE ignores leading spaces
|
|
if (first && ie && text.charAt(0) == " ") text = "\u00a0" + text.slice(1);
|
|
first = false;
|
|
if (!specials.test(text)) {
|
|
col += text.length;
|
|
var content = document.createTextNode(text);
|
|
} else {
|
|
var content = document.createDocumentFragment(), pos = 0;
|
|
while (true) {
|
|
specials.lastIndex = pos;
|
|
var m = specials.exec(text);
|
|
var skipped = m ? m.index - pos : text.length - pos;
|
|
if (skipped) {
|
|
content.appendChild(document.createTextNode(text.slice(pos, pos + skipped)));
|
|
col += skipped;
|
|
}
|
|
if (!m) break;
|
|
pos += skipped + 1;
|
|
if (m[0] == "\t") {
|
|
var tabWidth = tabSize - col % tabSize;
|
|
content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"));
|
|
col += tabWidth;
|
|
} else {
|
|
var token = elt("span", "\u2022", "cm-invalidchar");
|
|
token.title = "\\u" + m[0].charCodeAt(0).toString(16);
|
|
content.appendChild(token);
|
|
col += 1;
|
|
}
|
|
}
|
|
}
|
|
if (style != null) return pre.appendChild(elt("span", [content], style));
|
|
else return pre.appendChild(content);
|
|
}
|
|
var span = span_;
|
|
if (wrapAt != null) {
|
|
var outPos = 0;
|
|
span = function(text, style) {
|
|
var l = text.length;
|
|
if (wrapAt >= outPos && wrapAt < outPos + l) {
|
|
var cut = wrapAt - outPos;
|
|
if (wrapAt > outPos) {
|
|
span_(text.slice(0, cut), style);
|
|
// See comment at the definition of spanAffectsWrapping
|
|
if (compensateForWrapping && spanAffectsWrapping.test(text.slice(cut - 1, cut + 1)))
|
|
pre.appendChild(elt("wbr"));
|
|
}
|
|
if (cut + 1 == l) {
|
|
pre.anchor = span_(text.slice(cut), style || "");
|
|
wrapAt--;
|
|
} else {
|
|
var end = cut + 1;
|
|
while (isExtendingChar.test(text.charAt(end))) ++end;
|
|
pre.anchor = span_(text.slice(cut, end), style || "");
|
|
if (compensateForWrapping && spanAffectsWrapping.test(text.slice(cut, end + 1)))
|
|
pre.appendChild(elt("wbr"));
|
|
span_(text.slice(end), style);
|
|
}
|
|
outPos += l;
|
|
} else {
|
|
outPos += l;
|
|
span_(text, style);
|
|
}
|
|
};
|
|
}
|
|
|
|
var st = line.styles, allText = line.text, marked = line.markedSpans;
|
|
var len = allText.length;
|
|
if (!allText) {
|
|
span("\u00a0");
|
|
} else if (!marked || !marked.length) {
|
|
for (var i = 0, ch = 0; ch < len; i+=2) {
|
|
var str = st[i], style = st[i+1], l = str.length;
|
|
if (ch + l > len) str = str.slice(0, len - ch);
|
|
ch += l;
|
|
span(str, styleToClass(style));
|
|
}
|
|
} else {
|
|
marked.sort(function(a, b) { return a.from - b.from; });
|
|
var pos = 0, i = 0, text = "", style, sg = 0;
|
|
var nextChange = marked[0].from || 0, marks = [], markpos = 0;
|
|
var advanceMarks = function() {
|
|
var m;
|
|
while (markpos < marked.length &&
|
|
((m = marked[markpos]).from == pos || m.from == null)) {
|
|
if (m.marker.type == "range") marks.push(m);
|
|
++markpos;
|
|
}
|
|
nextChange = markpos < marked.length ? marked[markpos].from : Infinity;
|
|
for (var i = 0; i < marks.length; ++i) {
|
|
var to = marks[i].to;
|
|
if (to == null) to = Infinity;
|
|
if (to == pos) marks.splice(i--, 1);
|
|
else nextChange = Math.min(to, nextChange);
|
|
}
|
|
};
|
|
var m = 0;
|
|
while (pos < len) {
|
|
if (nextChange == pos) advanceMarks();
|
|
var upto = Math.min(len, nextChange);
|
|
while (true) {
|
|
if (text) {
|
|
var end = pos + text.length;
|
|
var appliedStyle = style;
|
|
for (var j = 0; j < marks.length; ++j) {
|
|
var mark = marks[j];
|
|
appliedStyle = (appliedStyle ? appliedStyle + " " : "") + mark.marker.style;
|
|
if (mark.marker.endStyle && mark.to === Math.min(end, upto)) appliedStyle += " " + mark.marker.endStyle;
|
|
if (mark.marker.startStyle && mark.from === pos) appliedStyle += " " + mark.marker.startStyle;
|
|
}
|
|
span(end > upto ? text.slice(0, upto - pos) : text, appliedStyle);
|
|
if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;}
|
|
pos = end;
|
|
}
|
|
text = st[i++]; style = styleToClass(st[i++]);
|
|
}
|
|
}
|
|
}
|
|
return pre;
|
|
}
|
|
|
|
// DOCUMENT DATA STRUCTURE
|
|
|
|
function LeafChunk(lines) {
|
|
this.lines = lines;
|
|
this.parent = null;
|
|
for (var i = 0, e = lines.length, height = 0; i < e; ++i) {
|
|
lines[i].parent = this;
|
|
height += lines[i].height;
|
|
}
|
|
this.height = height;
|
|
}
|
|
|
|
LeafChunk.prototype = {
|
|
chunkSize: function() { return this.lines.length; },
|
|
remove: function(at, n, cm) {
|
|
for (var i = at, e = at + n; i < e; ++i) {
|
|
var line = this.lines[i];
|
|
this.height -= line.height;
|
|
cleanUpLine(line);
|
|
signalLater(cm, line, "delete");
|
|
}
|
|
this.lines.splice(at, n);
|
|
},
|
|
collapse: function(lines) {
|
|
lines.splice.apply(lines, [lines.length, 0].concat(this.lines));
|
|
},
|
|
insertHeight: function(at, lines, height) {
|
|
this.height += height;
|
|
this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
|
|
for (var i = 0, e = lines.length; i < e; ++i) lines[i].parent = this;
|
|
},
|
|
iterN: function(at, n, op) {
|
|
for (var e = at + n; at < e; ++at)
|
|
if (op(this.lines[at])) return true;
|
|
}
|
|
};
|
|
|
|
function BranchChunk(children) {
|
|
this.children = children;
|
|
var size = 0, height = 0;
|
|
for (var i = 0, e = children.length; i < e; ++i) {
|
|
var ch = children[i];
|
|
size += ch.chunkSize(); height += ch.height;
|
|
ch.parent = this;
|
|
}
|
|
this.size = size;
|
|
this.height = height;
|
|
this.parent = null;
|
|
}
|
|
|
|
BranchChunk.prototype = {
|
|
chunkSize: function() { return this.size; },
|
|
remove: function(at, n, callbacks) {
|
|
this.size -= n;
|
|
for (var i = 0; i < this.children.length; ++i) {
|
|
var child = this.children[i], sz = child.chunkSize();
|
|
if (at < sz) {
|
|
var rm = Math.min(n, sz - at), oldHeight = child.height;
|
|
child.remove(at, rm, callbacks);
|
|
this.height -= oldHeight - child.height;
|
|
if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }
|
|
if ((n -= rm) == 0) break;
|
|
at = 0;
|
|
} else at -= sz;
|
|
}
|
|
if (this.size - n < 25) {
|
|
var lines = [];
|
|
this.collapse(lines);
|
|
this.children = [new LeafChunk(lines)];
|
|
this.children[0].parent = this;
|
|
}
|
|
},
|
|
collapse: function(lines) {
|
|
for (var i = 0, e = this.children.length; i < e; ++i) this.children[i].collapse(lines);
|
|
},
|
|
insert: function(at, lines) {
|
|
var height = 0;
|
|
for (var i = 0, e = lines.length; i < e; ++i) height += lines[i].height;
|
|
this.insertHeight(at, lines, height);
|
|
},
|
|
insertHeight: function(at, lines, height) {
|
|
this.size += lines.length;
|
|
this.height += height;
|
|
for (var i = 0, e = this.children.length; i < e; ++i) {
|
|
var child = this.children[i], sz = child.chunkSize();
|
|
if (at <= sz) {
|
|
child.insertHeight(at, lines, height);
|
|
if (child.lines && child.lines.length > 50) {
|
|
while (child.lines.length > 50) {
|
|
var spilled = child.lines.splice(child.lines.length - 25, 25);
|
|
var newleaf = new LeafChunk(spilled);
|
|
child.height -= newleaf.height;
|
|
this.children.splice(i + 1, 0, newleaf);
|
|
newleaf.parent = this;
|
|
}
|
|
this.maybeSpill();
|
|
}
|
|
break;
|
|
}
|
|
at -= sz;
|
|
}
|
|
},
|
|
maybeSpill: function() {
|
|
if (this.children.length <= 10) return;
|
|
var me = this;
|
|
do {
|
|
var spilled = me.children.splice(me.children.length - 5, 5);
|
|
var sibling = new BranchChunk(spilled);
|
|
if (!me.parent) { // Become the parent node
|
|
var copy = new BranchChunk(me.children);
|
|
copy.parent = me;
|
|
me.children = [copy, sibling];
|
|
me = copy;
|
|
} else {
|
|
me.size -= sibling.size;
|
|
me.height -= sibling.height;
|
|
var myIndex = indexOf(me.parent.children, me);
|
|
me.parent.children.splice(myIndex + 1, 0, sibling);
|
|
}
|
|
sibling.parent = me.parent;
|
|
} while (me.children.length > 10);
|
|
me.parent.maybeSpill();
|
|
},
|
|
iter: function(from, to, op) { this.iterN(from, to - from, op); },
|
|
iterN: function(at, n, op) {
|
|
for (var i = 0, e = this.children.length; i < e; ++i) {
|
|
var child = this.children[i], sz = child.chunkSize();
|
|
if (at < sz) {
|
|
var used = Math.min(n, sz - at);
|
|
if (child.iterN(at, used, op)) return true;
|
|
if ((n -= used) == 0) break;
|
|
at = 0;
|
|
} else at -= sz;
|
|
}
|
|
}
|
|
};
|
|
|
|
// LINE UTILITIES
|
|
|
|
function lineDoc(line) {
|
|
for (var d = line.parent; d && d.parent; d = d.parent) {}
|
|
return d;
|
|
}
|
|
|
|
function getLine(chunk, n) {
|
|
while (!chunk.lines) {
|
|
for (var i = 0;; ++i) {
|
|
var child = chunk.children[i], sz = child.chunkSize();
|
|
if (n < sz) { chunk = child; break; }
|
|
n -= sz;
|
|
}
|
|
}
|
|
return chunk.lines[n];
|
|
}
|
|
|
|
function updateLineHeight(line, height) {
|
|
var diff = height - line.height;
|
|
for (var n = line; n; n = n.parent) n.height += diff;
|
|
}
|
|
|
|
function lineNo(line) {
|
|
if (line.parent == null) return null;
|
|
var cur = line.parent, no = indexOf(cur.lines, line);
|
|
for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
|
|
for (var i = 0, e = chunk.children.length; ; ++i) {
|
|
if (chunk.children[i] == cur) break;
|
|
no += chunk.children[i].chunkSize();
|
|
}
|
|
}
|
|
return no;
|
|
}
|
|
|
|
function lineAtHeight(chunk, h) {
|
|
var n = 0;
|
|
outer: do {
|
|
for (var i = 0, e = chunk.children.length; i < e; ++i) {
|
|
var child = chunk.children[i], ch = child.height;
|
|
if (h < ch) { chunk = child; continue outer; }
|
|
h -= ch;
|
|
n += child.chunkSize();
|
|
}
|
|
return n;
|
|
} while (!chunk.lines);
|
|
for (var i = 0, e = chunk.lines.length; i < e; ++i) {
|
|
var line = chunk.lines[i], lh = line.height;
|
|
if (h < lh) break;
|
|
h -= lh;
|
|
}
|
|
return n + i;
|
|
}
|
|
|
|
function heightAtLine(chunk, n) {
|
|
var h = 0;
|
|
outer: do {
|
|
for (var i = 0, e = chunk.children.length; i < e; ++i) {
|
|
var child = chunk.children[i], sz = child.chunkSize();
|
|
if (n < sz) { chunk = child; continue outer; }
|
|
n -= sz;
|
|
h += child.height;
|
|
}
|
|
return h;
|
|
} while (!chunk.lines);
|
|
for (var i = 0; i < n; ++i) h += chunk.lines[i].height;
|
|
return h;
|
|
}
|
|
|
|
function getOrder(line) {
|
|
var order = line.order;
|
|
if (order == null) order = line.order = bidiOrdering(line.text);
|
|
return order;
|
|
}
|
|
|
|
function lineContent(cm, line, anchorAt) {
|
|
if (!line.styles) {
|
|
highlightLine(cm, line, line.stateAfter = getStateBefore(cm, lineNo(line)));
|
|
}
|
|
return buildLineContent(line, cm.options.tabSize, anchorAt, cm.options.lineWrapping);
|
|
}
|
|
|
|
// HISTORY
|
|
|
|
// The history object 'chunks' changes that are made close together
|
|
// and at almost the same time into bigger undoable units.
|
|
function makeHistory() {
|
|
return {time: 0, done: [], undone: [],
|
|
compound: 0, closed: false};
|
|
}
|
|
|
|
function addChange(history, start, added, old) {
|
|
history.undone.length = 0;
|
|
var time = +new Date, cur = lst(history.done), last = cur && lst(cur);
|
|
var dtime = time - history.time;
|
|
|
|
if (cur && !history.closed && history.compound) {
|
|
cur.push({start: start, added: added, old: old});
|
|
} else if (dtime > 400 || !last || history.closed ||
|
|
last.start > start + old.length || last.start + last.added < start) {
|
|
history.done.push([{start: start, added: added, old: old}]);
|
|
history.closed = false;
|
|
} else {
|
|
var startBefore = Math.max(0, last.start - start),
|
|
endAfter = Math.max(0, (start + old.length) - (last.start + last.added));
|
|
for (var i = startBefore; i > 0; --i) last.old.unshift(old[i - 1]);
|
|
for (var i = endAfter; i > 0; --i) last.old.push(old[old.length - i]);
|
|
if (startBefore) last.start = start;
|
|
last.added += added - (old.length - startBefore - endAfter);
|
|
}
|
|
history.time = time;
|
|
}
|
|
|
|
function compoundChange(cm, f) {
|
|
var hist = cm.view.history;
|
|
if (!hist.compound++) hist.closed = true;
|
|
try { return f(); }
|
|
finally { if (!--hist.compound) hist.closed = true; }
|
|
}
|
|
|
|
// EVENT OPERATORS
|
|
|
|
function stopMethod() {e_stop(this);}
|
|
// Ensure an event has a stop method.
|
|
function addStop(event) {
|
|
if (!event.stop) event.stop = stopMethod;
|
|
return event;
|
|
}
|
|
|
|
function e_preventDefault(e) {
|
|
if (e.preventDefault) e.preventDefault();
|
|
else e.returnValue = false;
|
|
}
|
|
function e_stopPropagation(e) {
|
|
if (e.stopPropagation) e.stopPropagation();
|
|
else e.cancelBubble = true;
|
|
}
|
|
function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);}
|
|
CodeMirror.e_stop = e_stop;
|
|
CodeMirror.e_preventDefault = e_preventDefault;
|
|
CodeMirror.e_stopPropagation = e_stopPropagation;
|
|
|
|
function e_target(e) {return e.target || e.srcElement;}
|
|
function e_button(e) {
|
|
var b = e.which;
|
|
if (b == null) {
|
|
if (e.button & 1) b = 1;
|
|
else if (e.button & 2) b = 3;
|
|
else if (e.button & 4) b = 2;
|
|
}
|
|
if (mac && e.ctrlKey && b == 1) b = 3;
|
|
return b;
|
|
}
|
|
|
|
// Allow 3rd-party code to override event properties by adding an override
|
|
// object to an event object.
|
|
function e_prop(e, prop) {
|
|
var overridden = e.override && e.override.hasOwnProperty(prop);
|
|
return overridden ? e.override[prop] : e[prop];
|
|
}
|
|
|
|
// EVENT HANDLING
|
|
|
|
function on(emitter, type, f) {
|
|
if (emitter.addEventListener)
|
|
emitter.addEventListener(type, f, false);
|
|
else if (emitter.attachEvent)
|
|
emitter.attachEvent("on" + type, f);
|
|
else {
|
|
var map = emitter._handlers || (emitter._handlers = {});
|
|
var arr = map[type] || (map[type] = []);
|
|
arr.push(f);
|
|
}
|
|
}
|
|
|
|
function off(emitter, type, f) {
|
|
if (emitter.removeEventListener)
|
|
emitter.removeEventListener(type, f, false);
|
|
else if (emitter.detachEvent)
|
|
emitter.detachEvent("on" + type, f);
|
|
else {
|
|
var arr = emitter._handlers && emitter._handlers[type];
|
|
if (!arr) return;
|
|
for (var i = 0; i < arr.length; ++i)
|
|
if (arr[i] == f) { arr.splice(i, 1); break; }
|
|
}
|
|
}
|
|
|
|
function signal(emitter, type /*, values...*/) {
|
|
var arr = emitter._handlers && emitter._handlers[type];
|
|
if (!arr) return;
|
|
var args = Array.prototype.slice.call(arguments, 2);
|
|
for (var i = 0; i < arr.length; ++i) arr[i].apply(null, args);
|
|
}
|
|
|
|
function signalLater(cm, emitter, type /*, values...*/) {
|
|
var arr = emitter._handlers && emitter._handlers[type];
|
|
if (!arr) return;
|
|
var args = Array.prototype.slice.call(arguments, 3), flist = cm.curOp && cm.curOp.delayedCallbacks;
|
|
function bnd(f) {return function(){f.apply(null, args);};};
|
|
for (var i = 0; i < arr.length; ++i)
|
|
if (flist) flist.push(bnd(arr[i]));
|
|
else arr[i].apply(null, args);
|
|
}
|
|
|
|
function hasHandler(emitter, type) {
|
|
var arr = emitter._handlers && emitter._handlers[type];
|
|
return arr && arr.length > 0;
|
|
}
|
|
|
|
CodeMirror.on = on; CodeMirror.off = off; CodeMirror.signal = signal;
|
|
|
|
// MISC UTILITIES
|
|
|
|
// Number of pixels added to scroller and sizer to hide scrollbar
|
|
var scrollerCutOff = 30;
|
|
|
|
// Returned or thrown by various protocols to signal 'I'm not
|
|
// handling this'.
|
|
var Pass = CodeMirror.Pass = {toString: function(){return "CodeMirror.Pass";}};
|
|
|
|
function Delayed() {this.id = null;}
|
|
Delayed.prototype = {set: function(ms, f) {clearTimeout(this.id); this.id = setTimeout(f, ms);}};
|
|
|
|
// Counts the column offset in a string, taking tabs into account.
|
|
// Used mostly to find indentation.
|
|
function countColumn(string, end, tabSize) {
|
|
if (end == null) {
|
|
end = string.search(/[^\s\u00a0]/);
|
|
if (end == -1) end = string.length;
|
|
}
|
|
for (var i = 0, n = 0; i < end; ++i) {
|
|
if (string.charAt(i) == "\t") n += tabSize - (n % tabSize);
|
|
else ++n;
|
|
}
|
|
return n;
|
|
}
|
|
|
|
var spaceStrs = [""];
|
|
function spaceStr(n) {
|
|
while (spaceStrs.length <= n)
|
|
spaceStrs.push(lst(spaceStrs) + " ");
|
|
return spaceStrs[n];
|
|
}
|
|
|
|
function lst(arr) { return arr[arr.length-1]; }
|
|
|
|
function selectInput(node) {
|
|
if (ios) { // Mobile Safari apparently has a bug where select() is broken.
|
|
node.selectionStart = 0;
|
|
node.selectionEnd = node.value.length;
|
|
} else node.select();
|
|
}
|
|
|
|
// Used to position the cursor after an undo/redo by finding the
|
|
// last edited character.
|
|
function editEnd(from, to) {
|
|
if (!to) return 0;
|
|
if (!from) return to.length;
|
|
for (var i = from.length, j = to.length; i >= 0 && j >= 0; --i, --j)
|
|
if (from.charAt(i) != to.charAt(j)) break;
|
|
return j + 1;
|
|
}
|
|
|
|
function indexOf(collection, elt) {
|
|
if (collection.indexOf) return collection.indexOf(elt);
|
|
for (var i = 0, e = collection.length; i < e; ++i)
|
|
if (collection[i] == elt) return i;
|
|
return -1;
|
|
}
|
|
|
|
function bind(f) {
|
|
var args = Array.prototype.slice.call(arguments, 1);
|
|
return function(){return f.apply(null, args);};
|
|
}
|
|
|
|
function isWordChar(ch) {
|
|
return /\w/.test(ch) || ch.toUpperCase() != ch.toLowerCase();
|
|
}
|
|
|
|
function isEmpty(obj) {
|
|
var c = 0;
|
|
for (var n in obj) if (obj.hasOwnProperty(n) && obj[n]) ++c;
|
|
return !c;
|
|
}
|
|
|
|
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]/;
|
|
|
|
// DOM UTILITIES
|
|
|
|
function elt(tag, content, className, style) {
|
|
var e = document.createElement(tag);
|
|
if (className) e.className = className;
|
|
if (style) e.style.cssText = style;
|
|
if (typeof content == "string") setTextContent(e, content);
|
|
else if (content) for (var i = 0; i < content.length; ++i) e.appendChild(content[i]);
|
|
return e;
|
|
}
|
|
|
|
function removeChildren(e) {
|
|
e.innerHTML = "";
|
|
return e;
|
|
}
|
|
|
|
function removeChildrenAndAdd(parent, e) {
|
|
return removeChildren(parent).appendChild(e);
|
|
}
|
|
|
|
function setTextContent(e, str) {
|
|
if (ie_lt9) {
|
|
e.innerHTML = "";
|
|
e.appendChild(document.createTextNode(str));
|
|
} else e.textContent = str;
|
|
}
|
|
|
|
// FEATURE DETECTION
|
|
|
|
// Detect drag-and-drop
|
|
var dragAndDrop = function() {
|
|
// There is *some* kind of drag-and-drop support in IE6-8, but I
|
|
// couldn't get it to work yet.
|
|
if (ie_lt9) return false;
|
|
var div = elt('div');
|
|
return "draggable" in div || "dragDrop" in div;
|
|
}();
|
|
|
|
// Feature-detect whether newlines in textareas are converted to \r\n
|
|
var lineSep = function () {
|
|
var te = elt("textarea");
|
|
te.value = "foo\nbar";
|
|
if (te.value.indexOf("\r") > -1) return "\r\n";
|
|
return "\n";
|
|
}();
|
|
|
|
// For a reason I have yet to figure out, some browsers disallow
|
|
// word wrapping between certain characters *only* if a new inline
|
|
// element is started between them. This makes it hard to reliably
|
|
// measure the position of things, since that requires inserting an
|
|
// extra span. This terribly fragile set of regexps matches the
|
|
// character combinations that suffer from this phenomenon on the
|
|
// various browsers.
|
|
var spanAffectsWrapping = /^$/; // Won't match any two-character string
|
|
if (gecko) spanAffectsWrapping = /$'/;
|
|
else if (safari) spanAffectsWrapping = /\-[^ \-?]|\?[^ !'\"\),.\-\/:;\?\]\}]/;
|
|
else if (chrome) spanAffectsWrapping = /\-[^ \-\.?]|\?[^ \-\.?\]\}:;!'\"\),\/]|[\.!\"#&%\)*+,:;=>\]|\}~][\(\{\[<]|\$'/;
|
|
|
|
var knownScrollbarWidth;
|
|
function scrollbarWidth(measure) {
|
|
if (knownScrollbarWidth != null) return knownScrollbarWidth;
|
|
var test = elt("div", null, null, "width: 50px; height: 50px; overflow-x: scroll");
|
|
removeChildrenAndAdd(measure, test);
|
|
if (test.offsetWidth)
|
|
knownScrollbarWidth = test.offsetHeight - test.clientHeight;
|
|
return knownScrollbarWidth || 0;
|
|
}
|
|
|
|
// See if "".split is the broken IE version, if so, provide an
|
|
// alternative way to split lines.
|
|
var splitLines = "\n\nb".split(/\n/).length != 3 ? function(string) {
|
|
var pos = 0, result = [], l = string.length;
|
|
while (pos <= l) {
|
|
var nl = string.indexOf("\n", pos);
|
|
if (nl == -1) nl = string.length;
|
|
var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl);
|
|
var rt = line.indexOf("\r");
|
|
if (rt != -1) {
|
|
result.push(line.slice(0, rt));
|
|
pos += rt + 1;
|
|
} else {
|
|
result.push(line);
|
|
pos = nl + 1;
|
|
}
|
|
}
|
|
return result;
|
|
} : function(string){return string.split(/\r\n?|\n/);};
|
|
CodeMirror.splitLines = splitLines;
|
|
|
|
var hasSelection = window.getSelection ? function(te) {
|
|
try { return te.selectionStart != te.selectionEnd; }
|
|
catch(e) { return false; }
|
|
} : function(te) {
|
|
try {var range = te.ownerDocument.selection.createRange();}
|
|
catch(e) {}
|
|
if (!range || range.parentElement() != te) return false;
|
|
return range.compareEndPoints("StartToEnd", range) != 0;
|
|
};
|
|
|
|
var hasCopyEvent = (function() {
|
|
var e = elt("div");
|
|
if ("oncopy" in e) return true;
|
|
e.setAttribute("oncopy", "return;");
|
|
return typeof e.oncopy == 'function';
|
|
})();
|
|
|
|
// KEY NAMING
|
|
|
|
var keyNames = {3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
|
|
19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
|
|
36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
|
|
46: "Delete", 59: ";", 91: "Mod", 92: "Mod", 93: "Mod", 109: "-", 107: "=", 127: "Delete",
|
|
186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
|
|
221: "]", 222: "'", 63276: "PageUp", 63277: "PageDown", 63275: "End", 63273: "Home",
|
|
63234: "Left", 63232: "Up", 63235: "Right", 63233: "Down", 63302: "Insert", 63272: "Delete"};
|
|
CodeMirror.keyNames = keyNames;
|
|
(function() {
|
|
// Number keys
|
|
for (var i = 0; i < 10; i++) keyNames[i + 48] = String(i);
|
|
// Alphabetic keys
|
|
for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i);
|
|
// Function keys
|
|
for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i;
|
|
})();
|
|
|
|
// BIDI HELPERS
|
|
|
|
function iterateBidiSections(order, from, to, f) {
|
|
if (!order) return f(from, to, "ltr");
|
|
for (var i = 0; i < order.length; ++i) {
|
|
var part = order[i];
|
|
if (part.from < to && part.to > from)
|
|
f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr");
|
|
}
|
|
}
|
|
|
|
function bidiLeft(part) { return part.level % 2 ? part.to : part.from; }
|
|
function bidiRight(part) { return part.level % 2 ? part.from : part.to; }
|
|
|
|
function lineLeft(line) { var order = getOrder(line); return order ? bidiLeft(order[0]) : 0; }
|
|
function lineRight(line) {
|
|
var order = getOrder(line);
|
|
if (!order) return line.text.length;
|
|
return bidiRight(lst(order));
|
|
}
|
|
function lineStart(line) {
|
|
var order = getOrder(line);
|
|
if (!order) return 0;
|
|
return order[0].level % 2 ? lineRight(line) : lineLeft(line);
|
|
}
|
|
function lineEnd(line) {
|
|
var order = getOrder(line);
|
|
if (!order) return line.text.length;
|
|
return order[0].level % 2 ? lineLeft(line) : lineRight(line);
|
|
}
|
|
|
|
// This is somewhat involved. It is needed in order to move
|
|
// 'visually' through bi-directional text -- i.e., pressing left
|
|
// should make the cursor go left, even when in RTL text. The
|
|
// tricky part is the 'jumps', where RTL and LTR text touch each
|
|
// other. This often requires the cursor offset to move more than
|
|
// one unit, in order to visually move one unit.
|
|
function moveVisually(line, start, dir, byUnit) {
|
|
var bidi = getOrder(line);
|
|
if (!bidi) return moveLogically(line, start, dir, byUnit);
|
|
var moveOneUnit = byUnit ? function(pos, dir) {
|
|
do pos += dir;
|
|
while (pos > 0 && isExtendingChar.test(line.text.charAt(pos)));
|
|
return pos;
|
|
} : function(pos, dir) { return pos + dir; };
|
|
var linedir = bidi[0].level;
|
|
for (var i = 0; i < bidi.length; ++i) {
|
|
var part = bidi[i], sticky = part.level % 2 == linedir;
|
|
if ((part.from < start && part.to > start) ||
|
|
(sticky && (part.from == start || part.to == start))) break;
|
|
}
|
|
var target = moveOneUnit(start, part.level % 2 ? -dir : dir);
|
|
|
|
while (target != null) {
|
|
if (part.level % 2 == linedir) {
|
|
if (target < part.from || target > part.to) {
|
|
part = bidi[i += dir];
|
|
target = part && (dir > 0 == part.level % 2 ? moveOneUnit(part.to, -1) : moveOneUnit(part.from, 1));
|
|
} else break;
|
|
} else {
|
|
if (target == bidiLeft(part)) {
|
|
part = bidi[--i];
|
|
target = part && bidiRight(part);
|
|
} else if (target == bidiRight(part)) {
|
|
part = bidi[++i];
|
|
target = part && bidiLeft(part);
|
|
} else break;
|
|
}
|
|
}
|
|
|
|
return target < 0 || target > line.text.length ? null : target;
|
|
}
|
|
|
|
function moveLogically(line, start, dir, byUnit) {
|
|
var target = start + dir;
|
|
if (byUnit) while (target > 0 && isExtendingChar.test(line.text.charAt(target))) target += dir;
|
|
return target < 0 || target > line.text.length ? null : target;
|
|
}
|
|
|
|
// Bidirectional ordering algorithm
|
|
// See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
|
|
// that this (partially) implements.
|
|
|
|
// One-char codes used for character types:
|
|
// L (L): Left-to-Right
|
|
// R (R): Right-to-Left
|
|
// r (AL): Right-to-Left Arabic
|
|
// 1 (EN): European Number
|
|
// + (ES): European Number Separator
|
|
// % (ET): European Number Terminator
|
|
// n (AN): Arabic Number
|
|
// , (CS): Common Number Separator
|
|
// m (NSM): Non-Spacing Mark
|
|
// b (BN): Boundary Neutral
|
|
// s (B): Paragraph Separator
|
|
// t (S): Segment Separator
|
|
// w (WS): Whitespace
|
|
// N (ON): Other Neutrals
|
|
|
|
// Returns null if characters are ordered as they appear
|
|
// (left-to-right), or an array of sections ({from, to, level}
|
|
// objects) in the order in which they occur visually.
|
|
var bidiOrdering = (function() {
|
|
// Character types for codepoints 0 to 0xff
|
|
var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLL";
|
|
// Character types for codepoints 0x600 to 0x6ff
|
|
var arabicTypes = "rrrrrrrrrrrr,rNNmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmrrrrrrrnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmNmmmmrrrrrrrrrrrrrrrrrr";
|
|
function charType(code) {
|
|
var type = "L";
|
|
if (code <= 0xff) return lowTypes.charAt(code);
|
|
else if (0x590 <= code && code <= 0x5f4) return "R";
|
|
else if (0x600 <= code && code <= 0x6ff) return arabicTypes.charAt(code - 0x600);
|
|
else if (0x700 <= code && code <= 0x8ac) return "r";
|
|
else return "L";
|
|
}
|
|
|
|
var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/;
|
|
var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/;
|
|
|
|
return function charOrdering(str) {
|
|
if (!bidiRE.test(str)) return false;
|
|
var len = str.length, types = new Array(len), startType = null;
|
|
for (var i = 0; i < len; ++i) {
|
|
var type = types[i] = charType(str.charCodeAt(i));
|
|
if (startType == null) {
|
|
if (type == "L") startType = "L";
|
|
else if (type == "R" || type == "r") startType = "R";
|
|
}
|
|
}
|
|
if (startType == null) startType = "L";
|
|
|
|
// W1. Examine each non-spacing mark (NSM) in the level run, and
|
|
// change the type of the NSM to the type of the previous
|
|
// character. If the NSM is at the start of the level run, it will
|
|
// get the type of sor.
|
|
for (var i = 0, prev = startType; i < len; ++i) {
|
|
var type = types[i];
|
|
if (type == "m") types[i] = prev;
|
|
else prev = type;
|
|
}
|
|
|
|
// W2. Search backwards from each instance of a European number
|
|
// until the first strong type (R, L, AL, or sor) is found. If an
|
|
// AL is found, change the type of the European number to Arabic
|
|
// number.
|
|
// W3. Change all ALs to R.
|
|
for (var i = 0, cur = startType; i < len; ++i) {
|
|
var type = types[i];
|
|
if (type == "1" && cur == "r") types[i] = "n";
|
|
else if (isStrong.test(type)) { cur = type; if (type == "r") types[i] = "R"; }
|
|
}
|
|
|
|
// W4. A single European separator between two European numbers
|
|
// changes to a European number. A single common separator between
|
|
// two numbers of the same type changes to that type.
|
|
for (var i = 1, prev = types[0]; i < len - 1; ++i) {
|
|
var type = types[i];
|
|
if (type == "+" && prev == "1" && types[i+1] == "1") types[i] = "1";
|
|
else if (type == "," && prev == types[i+1] &&
|
|
(prev == "1" || prev == "n")) types[i] = prev;
|
|
prev = type;
|
|
}
|
|
|
|
// W5. A sequence of European terminators adjacent to European
|
|
// numbers changes to all European numbers.
|
|
// W6. Otherwise, separators and terminators change to Other
|
|
// Neutral.
|
|
for (var i = 0; i < len; ++i) {
|
|
var type = types[i];
|
|
if (type == ",") types[i] = "N";
|
|
else if (type == "%") {
|
|
for (var end = i + 1; end < len && types[end] == "%"; ++end) {}
|
|
var replace = (i && types[i-1] == "!") || (end < len - 1 && types[end] == "1") ? "1" : "N";
|
|
for (var j = i; j < end; ++j) types[j] = replace;
|
|
i = end - 1;
|
|
}
|
|
}
|
|
|
|
// W7. Search backwards from each instance of a European number
|
|
// until the first strong type (R, L, or sor) is found. If an L is
|
|
// found, then change the type of the European number to L.
|
|
for (var i = 0, cur = startType; i < len; ++i) {
|
|
var type = types[i];
|
|
if (cur == "L" && type == "1") types[i] = "L";
|
|
else if (isStrong.test(type)) cur = type;
|
|
}
|
|
|
|
// N1. A sequence of neutrals takes the direction of the
|
|
// surrounding strong text if the text on both sides has the same
|
|
// direction. European and Arabic numbers act as if they were R in
|
|
// terms of their influence on neutrals. Start-of-level-run (sor)
|
|
// and end-of-level-run (eor) are used at level run boundaries.
|
|
// N2. Any remaining neutrals take the embedding direction.
|
|
for (var i = 0; i < len; ++i) {
|
|
if (isNeutral.test(types[i])) {
|
|
for (var end = i + 1; end < len && isNeutral.test(types[end]); ++end) {}
|
|
var before = (i ? types[i-1] : startType) == "L";
|
|
var after = (end < len - 1 ? types[end] : startType) == "L";
|
|
var replace = before || after ? "L" : "R";
|
|
for (var j = i; j < end; ++j) types[j] = replace;
|
|
i = end - 1;
|
|
}
|
|
}
|
|
|
|
// Here we depart from the documented algorithm, in order to avoid
|
|
// building up an actual levels array. Since there are only three
|
|
// levels (0, 1, 2) in an implementation that doesn't take
|
|
// explicit embedding into account, we can build up the order on
|
|
// the fly, without following the level-based algorithm.
|
|
var order = [], m;
|
|
for (var i = 0; i < len;) {
|
|
if (countsAsLeft.test(types[i])) {
|
|
var start = i;
|
|
for (++i; i < len && countsAsLeft.test(types[i]); ++i) {}
|
|
order.push({from: start, to: i, level: 0});
|
|
} else {
|
|
var pos = i, at = order.length;
|
|
for (++i; i < len && types[i] != "L"; ++i) {}
|
|
for (var j = pos; j < i;) {
|
|
if (countsAsNum.test(types[j])) {
|
|
if (pos < j) order.splice(at, 0, {from: pos, to: j, level: 1});
|
|
var nstart = j;
|
|
for (++j; j < i && countsAsNum.test(types[j]); ++j) {}
|
|
order.splice(at, 0, {from: nstart, to: j, level: 2});
|
|
pos = j;
|
|
} else ++j;
|
|
}
|
|
if (pos < i) order.splice(at, 0, {from: pos, to: i, level: 1});
|
|
}
|
|
}
|
|
if (order[0].level == 1 && (m = str.match(/^\s+/))) {
|
|
order[0].from = m[0].length;
|
|
order.unshift({from: 0, to: m[0].length, level: 0});
|
|
}
|
|
if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
|
|
lst(order).to -= m[0].length;
|
|
order.push({from: len - m[0].length, to: len, level: 0});
|
|
}
|
|
if (order[0].level != lst(order).level)
|
|
order.push({from: len, to: len, level: order[0].level});
|
|
|
|
return order;
|
|
};
|
|
})();
|
|
|
|
// THE END
|
|
|
|
CodeMirror.version = "3.0 B2";
|
|
|
|
return CodeMirror;
|
|
})();
|