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// CodeMirror version 2.35
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// All functions that need access to the editor's state live inside
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// the CodeMirror function. Below that, at the bottom of the file,
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// some utilities are defined.
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// CodeMirror is the only global var we claim
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window.CodeMirror = (function() {
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// This is the function that produces an editor instance. Its
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// closure is used to store the editor state.
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function CodeMirror(place, givenOptions) {
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// Determine effective options based on given values and defaults.
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var options = {}, defaults = CodeMirror.defaults;
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for (var opt in defaults)
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if (defaults.hasOwnProperty(opt))
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options[opt] = (givenOptions && givenOptions.hasOwnProperty(opt) ? givenOptions : defaults)[opt];
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var input = elt("textarea", null, null, "position: absolute; padding: 0; width: 1px; height: 1em");
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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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var inputDiv = elt("div", [input], null, "overflow: hidden; position: relative; width: 3px; height: 0px;");
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// The empty scrollbar content, used solely for managing the scrollbar thumb.
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var scrollbarInner = elt("div", null, "CodeMirror-scrollbar-inner");
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// The vertical scrollbar. Horizontal scrolling is handled by the scroller itself.
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var scrollbar = elt("div", [scrollbarInner], "CodeMirror-scrollbar");
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// DIVs containing the selection and the actual code
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var lineDiv = elt("div"), 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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var cursor = elt("pre", "\u00a0", "CodeMirror-cursor"), widthForcer = elt("pre", "\u00a0", "CodeMirror-cursor", "visibility: hidden");
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// Used to measure text size
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var measure = elt("div", null, null, "position: absolute; width: 100%; height: 0px; overflow: hidden; visibility: hidden;");
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var lineSpace = elt("div", [measure, cursor, widthForcer, selectionDiv, lineDiv], null, "position: relative; z-index: 0");
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var gutterText = elt("div", null, "CodeMirror-gutter-text"), gutter = elt("div", [gutterText], "CodeMirror-gutter");
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// Moved around its parent to cover visible view
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var mover = elt("div", [gutter, elt("div", [lineSpace], "CodeMirror-lines")], null, "position: relative");
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// Set to the height of the text, causes scrolling
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var sizer = elt("div", [mover], null, "position: relative");
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var scroller = elt("div", [sizer], "CodeMirror-scroll");
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scroller.setAttribute("tabIndex", "-1");
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// The element in which the editor lives.
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var wrapper = elt("div", [inputDiv, scrollbar, scroller], "CodeMirror" + (options.lineWrapping ? " CodeMirror-wrap" : ""));
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if (place.appendChild) place.appendChild(wrapper); else place(wrapper);
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themeChanged(); keyMapChanged();
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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) scroller.draggable = true;
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lineSpace.style.outline = "none";
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if (options.tabindex != null) input.tabIndex = options.tabindex;
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if (options.autofocus) focusInput();
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if (!options.gutter && !options.lineNumbers) gutter.style.display = "none";
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// Needed to handle Tab key in KHTML
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if (khtml) inputDiv.style.height = "1px", inputDiv.style.position = "absolute";
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// Check for OS X >= 10.7. This has transparent scrollbars, so the
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// overlaying of one scrollbar with another won't work. This is a
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// temporary hack to simply turn off the overlay scrollbar. See
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if (mac_geLion) { scrollbar.style.zIndex = -2; scrollbar.style.visibility = "hidden"; }
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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) scrollbar.style.minWidth = "18px";
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// Delayed object wrap timeouts, making sure only one is active. blinker holds an interval.
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var poll = new Delayed(), highlight = new Delayed(), blinker;
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// mode holds a mode API object. doc is the tree of Line objects,
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// frontier is the point up to which the content has been parsed,
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// and history the undo history (instance of History constructor).
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var mode, doc = new BranchChunk([new LeafChunk([new Line("")])]), frontier = 0, focused;
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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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var sel = {from: {line: 0, ch: 0}, to: {line: 0, ch: 0}, inverted: false};
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// Selection-related flags. shiftSelecting obviously tracks
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// whether the user is holding shift.
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var shiftSelecting, lastClick, lastDoubleClick, lastScrollTop = 0, draggingText,
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overwrite = false, suppressEdits = false, pasteIncoming = false;
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// Variables used by startOperation/endOperation to track what
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// happened during the operation.
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var updateInput, userSelChange, changes, textChanged, selectionChanged,
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gutterDirty, callbacks;
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// Current visible range (may be bigger than the view window).
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var displayOffset = 0, showingFrom = 0, showingTo = 0, lastSizeC = 0;
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// bracketHighlighted is used to remember that a bracket has been
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var bracketHighlighted;
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// Tracks the maximum line length so that the horizontal scrollbar
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// can be kept static when scrolling.
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var maxLine = getLine(0), updateMaxLine = false, maxLineChanged = true;
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var pollingFast = false; // Ensures slowPoll doesn't cancel fastPoll
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var goalColumn = null;
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// Initialize the content.
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operation(function(){setValue(options.value || ""); updateInput = false;})();
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var history = new History();
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// Register our event handlers.
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connect(scroller, "mousedown", operation(onMouseDown));
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connect(scroller, "dblclick", operation(onDoubleClick));
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connect(lineSpace, "selectstart", e_preventDefault);
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// Gecko browsers fire contextmenu *after* opening the menu, at
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// which point we can't mess with it anymore. Context menu is
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// handled in onMouseDown for Gecko.
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if (!gecko) connect(scroller, "contextmenu", onContextMenu);
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connect(scroller, "scroll", onScrollMain);
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connect(scrollbar, "scroll", onScrollBar);
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connect(scrollbar, "mousedown", function() {if (focused) setTimeout(focusInput, 0);});
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var resizeHandler = connect(window, "resize", function() {
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if (wrapper.parentNode) updateDisplay(true);
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else resizeHandler();
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connect(input, "keyup", operation(onKeyUp));
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connect(input, "input", fastPoll);
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connect(input, "keydown", operation(onKeyDown));
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connect(input, "keypress", operation(onKeyPress));
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connect(input, "focus", onFocus);
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connect(input, "blur", onBlur);
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if (options.onDragEvent && options.onDragEvent(instance, addStop(e))) return;
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if (options.dragDrop) {
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connect(scroller, "dragstart", onDragStart);
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connect(scroller, "dragenter", drag_);
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connect(scroller, "dragover", drag_);
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connect(scroller, "drop", operation(onDrop));
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connect(scroller, "paste", function(){focusInput(); fastPoll();});
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connect(input, "paste", function(){pasteIncoming = true; fastPoll();});
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connect(input, "cut", operation(function(){
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if (!options.readOnly) replaceSelection("");
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// Needed to handle Tab key in KHTML
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if (khtml) connect(sizer, "mouseup", function() {
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if (document.activeElement == input) input.blur();
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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 == input); } catch(e) { }
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if (hasFocus || options.autofocus) setTimeout(onFocus, 20);
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function isLine(l) {return l >= 0 && l < doc.size;}
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// The instance object that we'll return. Mostly calls out to
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// local functions in the CodeMirror function. Some do some extra
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// range checking and/or clipping. operation is used to wrap the
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// call so that changes it makes are tracked, and the display is
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// updated afterwards.
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var instance = wrapper.CodeMirror = {
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setValue: operation(setValue),
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getSelection: getSelection,
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replaceSelection: operation(replaceSelection),
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focus: function(){window.focus(); focusInput(); onFocus(); fastPoll();},
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setOption: function(option, value) {
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var oldVal = options[option];
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options[option] = value;
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if (option == "mode" || option == "indentUnit") loadMode();
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else if (option == "readOnly" && value == "nocursor") {onBlur(); input.blur();}
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else if (option == "readOnly" && !value) {resetInput(true);}
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else if (option == "theme") themeChanged();
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else if (option == "lineWrapping" && oldVal != value) operation(wrappingChanged)();
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else if (option == "tabSize") updateDisplay(true);
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else if (option == "keyMap") keyMapChanged();
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else if (option == "tabindex") input.tabIndex = value;
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if (option == "lineNumbers" || option == "gutter" || option == "firstLineNumber" ||
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option == "theme" || option == "lineNumberFormatter") {
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getOption: function(option) {return options[option];},
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getMode: function() {return mode;},
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undo: operation(undo),
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redo: operation(redo),
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indentLine: operation(function(n, dir) {
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if (typeof dir != "string") {
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if (dir == null) dir = options.smartIndent ? "smart" : "prev";
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else dir = dir ? "add" : "subtract";
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if (isLine(n)) indentLine(n, dir);
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indentSelection: operation(indentSelected),
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historySize: function() {return {undo: history.done.length, redo: history.undone.length};},
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clearHistory: function() {history = new History();},
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setHistory: function(histData) {
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history = new History();
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history.done = histData.done;
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history.undone = histData.undone;
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getHistory: function() {
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for (var i = 0, nw = [], nwelt; i < arr.length; ++i) {
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for (var j = 0, elt = arr[i]; j < elt.length; ++j) {
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var old = [], cur = elt[j];
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nwelt.push({start: cur.start, added: cur.added, old: old});
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for (var k = 0; k < cur.old.length; ++k) old.push(hlText(cur.old[k]));
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return {done: cp(history.done), undone: cp(history.undone)};
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matchBrackets: operation(function(){matchBrackets(true);}),
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getTokenAt: operation(function(pos) {
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return getLine(pos.line).getTokenAt(mode, getStateBefore(pos.line), options.tabSize, pos.ch);
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getStateAfter: function(line) {
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line = clipLine(line == null ? doc.size - 1: line);
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return getStateBefore(line + 1);
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cursorCoords: function(start, mode) {
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if (start == null) start = sel.inverted;
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return this.charCoords(start ? sel.from : sel.to, mode);
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charCoords: function(pos, mode) {
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if (mode == "local") return localCoords(pos, false);
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if (mode == "div") return localCoords(pos, true);
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return pageCoords(pos);
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coordsChar: function(coords) {
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var off = eltOffset(lineSpace);
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return coordsChar(coords.x - off.left, coords.y - off.top);
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markText: operation(markText),
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setBookmark: setBookmark,
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findMarksAt: findMarksAt,
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setMarker: operation(addGutterMarker),
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clearMarker: operation(removeGutterMarker),
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setLineClass: operation(setLineClass),
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hideLine: operation(function(h) {return setLineHidden(h, true);}),
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showLine: operation(function(h) {return setLineHidden(h, false);}),
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onDeleteLine: function(line, f) {
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if (typeof line == "number") {
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if (!isLine(line)) return null;
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line = getLine(line);
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(line.handlers || (line.handlers = [])).push(f);
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getViewport: function() { return {from: showingFrom, to: showingTo};},
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addWidget: function(pos, node, scroll, vert, horiz) {
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pos = localCoords(clipPos(pos));
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var top = pos.yBot, left = pos.x;
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node.style.position = "absolute";
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sizer.appendChild(node);
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if (vert == "over") top = pos.y;
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else if (vert == "near") {
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var vspace = Math.max(scroller.offsetHeight, doc.height * textHeight()),
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hspace = Math.max(sizer.clientWidth, lineSpace.clientWidth) - paddingLeft();
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if (pos.yBot + node.offsetHeight > vspace && pos.y > node.offsetHeight)
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top = pos.y - node.offsetHeight;
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if (left + node.offsetWidth > hspace)
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left = hspace - node.offsetWidth;
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node.style.top = (top + paddingTop()) + "px";
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node.style.left = node.style.right = "";
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if (horiz == "right") {
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left = sizer.clientWidth - node.offsetWidth;
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node.style.right = "0px";
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if (horiz == "left") left = 0;
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else if (horiz == "middle") left = (sizer.clientWidth - node.offsetWidth) / 2;
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node.style.left = (left + paddingLeft()) + "px";
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scrollIntoView(left, top, left + node.offsetWidth, top + node.offsetHeight);
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lineCount: function() {return doc.size;},
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getCursor: function(start) {
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if (start == null) start = sel.inverted;
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return copyPos(start ? sel.from : sel.to);
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somethingSelected: function() {return !posEq(sel.from, sel.to);},
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setCursor: operation(function(line, ch, user) {
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if (ch == null && typeof line.line == "number") setCursor(line.line, line.ch, user);
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else setCursor(line, ch, user);
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setSelection: operation(function(from, to, user) {
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(user ? setSelectionUser : setSelection)(clipPos(from), clipPos(to || from));
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getLine: function(line) {if (isLine(line)) return getLine(line).text;},
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getLineHandle: function(line) {if (isLine(line)) return getLine(line);},
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setLine: operation(function(line, text) {
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if (isLine(line)) replaceRange(text, {line: line, ch: 0}, {line: line, ch: getLine(line).text.length});
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removeLine: operation(function(line) {
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if (isLine(line)) replaceRange("", {line: line, ch: 0}, clipPos({line: line+1, ch: 0}));
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replaceRange: operation(replaceRange),
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getRange: function(from, to, lineSep) {return getRange(clipPos(from), clipPos(to), lineSep);},
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triggerOnKeyDown: operation(onKeyDown),
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execCommand: function(cmd) {return commands[cmd](instance);},
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// Stuff used by commands, probably not much use to outside code.
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moveH: operation(moveH),
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deleteH: operation(deleteH),
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moveV: operation(moveV),
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toggleOverwrite: function() {
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cursor.className = cursor.className.replace(" CodeMirror-overwrite", "");
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cursor.className += " CodeMirror-overwrite";
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posFromIndex: function(off) {
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doc.iter(0, doc.size, function(line) {
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var sz = line.text.length + 1;
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if (sz > off) { ch = off; return true; }
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return clipPos({line: lineNo, ch: ch});
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indexFromPos: function (coords) {
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if (coords.line < 0 || coords.ch < 0) return 0;
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var index = coords.ch;
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doc.iter(0, coords.line, function (line) {
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index += line.text.length + 1;
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scrollTo: function(x, y) {
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if (x != null) scroller.scrollLeft = x;
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if (y != null) scrollbar.scrollTop = scroller.scrollTop = y;
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getScrollInfo: function() {
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return {x: scroller.scrollLeft, y: scrollbar.scrollTop,
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height: scrollbar.scrollHeight, width: scroller.scrollWidth};
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setSize: function(width, height) {
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function interpret(val) {
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return /^\d+$/.test(val) ? val + "px" : val;
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if (width != null) wrapper.style.width = interpret(width);
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if (height != null) scroller.style.height = interpret(height);
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operation: function(f){return operation(f)();},
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compoundChange: function(f){return compoundChange(f);},
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updateDisplay(true, null, lastScrollTop);
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if (scrollbar.scrollHeight > lastScrollTop)
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scrollbar.scrollTop = lastScrollTop;
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getInputField: function(){return input;},
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getWrapperElement: function(){return wrapper;},
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getScrollerElement: function(){return scroller;},
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getGutterElement: function(){return gutter;}
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function getLine(n) { return getLineAt(doc, n); }
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function updateLineHeight(line, height) {
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var diff = height - line.height;
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for (var n = line; n; n = n.parent) n.height += diff;
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function lineContent(line, wrapAt) {
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line.highlight(mode, line.stateAfter = getStateBefore(lineNo(line)), options.tabSize);
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return line.getContent(options.tabSize, wrapAt, options.lineWrapping);
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function setValue(code) {
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var top = {line: 0, ch: 0};
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updateLines(top, {line: doc.size - 1, ch: getLine(doc.size-1).text.length},
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splitLines(code), top, top);
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function getValue(lineSep) {
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doc.iter(0, doc.size, function(line) { text.push(line.text); });
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return text.join(lineSep || "\n");
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function onScrollBar(e) {
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if (scrollbar.scrollTop != lastScrollTop) {
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lastScrollTop = scroller.scrollTop = scrollbar.scrollTop;
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function onScrollMain(e) {
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if (options.fixedGutter && gutter.style.left != scroller.scrollLeft + "px")
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gutter.style.left = scroller.scrollLeft + "px";
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if (scroller.scrollTop != lastScrollTop) {
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lastScrollTop = scroller.scrollTop;
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if (scrollbar.scrollTop != lastScrollTop)
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scrollbar.scrollTop = lastScrollTop;
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if (options.onScroll) options.onScroll(instance);
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function onMouseDown(e) {
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setShift(e_prop(e, "shiftKey"));
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// Check whether this is a click in a widget
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for (var n = e_target(e); n != wrapper; n = n.parentNode)
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if (n.parentNode == sizer && n != mover) return;
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// See if this is a click in the gutter
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for (var n = e_target(e); n != wrapper; n = n.parentNode)
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if (n.parentNode == gutterText) {
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if (options.onGutterClick)
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options.onGutterClick(instance, indexOf(gutterText.childNodes, n) + showingFrom, e);
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return e_preventDefault(e);
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var start = posFromMouse(e);
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switch (e_button(e)) {
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if (gecko) onContextMenu(e);
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if (start) setCursor(start.line, start.ch, true);
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setTimeout(focusInput, 20);
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// For button 1, if it was clicked inside the editor
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// (posFromMouse returning non-null), we have to adjust the
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if (!start) {if (e_target(e) == scroller) e_preventDefault(e); return;}
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if (!focused) onFocus();
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var now = +new Date, type = "single";
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if (lastDoubleClick && lastDoubleClick.time > now - 400 && posEq(lastDoubleClick.pos, start)) {
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setTimeout(focusInput, 20);
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selectLine(start.line);
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} else if (lastClick && lastClick.time > now - 400 && posEq(lastClick.pos, start)) {
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lastDoubleClick = {time: now, pos: start};
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var word = findWordAt(start);
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setSelectionUser(word.from, word.to);
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} else { lastClick = {time: now, pos: start}; }
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function dragEnd(e2) {
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if (webkit) scroller.draggable = false;
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draggingText = false;
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if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) {
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e_preventDefault(e2);
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setCursor(start.line, start.ch, true);
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var last = start, going;
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if (options.dragDrop && dragAndDrop && !options.readOnly && !posEq(sel.from, sel.to) &&
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!posLess(start, sel.from) && !posLess(sel.to, start) && type == "single") {
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// Let the drag handler handle this.
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if (webkit) scroller.draggable = true;
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var up = connect(document, "mouseup", operation(dragEnd), true);
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var drop = connect(scroller, "drop", operation(dragEnd), true);
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// IE's approach to draggable
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if (scroller.dragDrop) scroller.dragDrop();
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if (type == "single") setCursor(start.line, start.ch, true);
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var startstart = sel.from, startend = sel.to;
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function doSelect(cur) {
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if (type == "single") {
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setSelectionUser(start, cur);
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} else if (type == "double") {
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var word = findWordAt(cur);
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if (posLess(cur, startstart)) setSelectionUser(word.from, startend);
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else setSelectionUser(startstart, word.to);
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} else if (type == "triple") {
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if (posLess(cur, startstart)) setSelectionUser(startend, clipPos({line: cur.line, ch: 0}));
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else setSelectionUser(startstart, clipPos({line: cur.line + 1, ch: 0}));
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var cur = posFromMouse(e, true);
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if (cur && !posEq(cur, last)) {
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if (!focused) onFocus();
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var visible = visibleLines();
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if (cur.line >= visible.to || cur.line < visible.from)
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going = setTimeout(operation(function(){extend(e);}), 150);
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var cur = posFromMouse(e);
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if (cur) doSelect(cur);
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var move = connect(document, "mousemove", operation(function(e) {
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if (!ie && !e_button(e)) done(e);
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var up = connect(document, "mouseup", operation(done), true);
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function onDoubleClick(e) {
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for (var n = e_target(e); n != wrapper; n = n.parentNode)
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if (n.parentNode == gutterText) return e_preventDefault(e);
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if (options.onDragEvent && options.onDragEvent(instance, addStop(e))) return;
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var pos = posFromMouse(e, true), files = e.dataTransfer.files;
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if (!pos || options.readOnly) return;
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if (files && files.length && window.FileReader && window.File) {
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var n = files.length, text = Array(n), read = 0;
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var loadFile = function(file, i) {
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var reader = new FileReader;
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reader.onload = function() {
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text[i] = reader.result;
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operation(function() {
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var end = replaceRange(text.join(""), pos, pos);
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setSelectionUser(pos, end);
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reader.readAsText(file);
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for (var i = 0; i < n; ++i) loadFile(files[i], i);
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// Don't do a replace if the drop happened inside of the selected text.
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if (draggingText && !(posLess(pos, sel.from) || posLess(sel.to, pos))) return;
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var text = e.dataTransfer.getData("Text");
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compoundChange(function() {
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var curFrom = sel.from, curTo = sel.to;
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setSelectionUser(pos, pos);
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if (draggingText) replaceRange("", curFrom, curTo);
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replaceSelection(text);
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function onDragStart(e) {
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var txt = getSelection();
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e.dataTransfer.setData("Text", txt);
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// Use dummy image instead of default browsers image.
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if (e.dataTransfer.setDragImage)
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e.dataTransfer.setDragImage(elt('img'), 0, 0);
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function doHandleBinding(bound, dropShift) {
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if (typeof bound == "string") {
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bound = commands[bound];
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if (!bound) return false;
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var prevShift = shiftSelecting;
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if (options.readOnly) suppressEdits = true;
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if (dropShift) shiftSelecting = null;
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if (e != Pass) throw e;
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shiftSelecting = prevShift;
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suppressEdits = false;
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function handleKeyBinding(e) {
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// Handle auto keymap transitions
609
var startMap = getKeyMap(options.keyMap), next = startMap.auto;
610
clearTimeout(maybeTransition);
611
if (next && !isModifierKey(e)) maybeTransition = setTimeout(function() {
612
if (getKeyMap(options.keyMap) == startMap) {
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options.keyMap = (next.call ? next.call(null, instance) : next);
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var name = keyNames[e_prop(e, "keyCode")], handled = false;
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var flipCtrlCmd = opera && mac;
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if (name == null || e.altGraphKey) return false;
620
if (e_prop(e, "altKey")) name = "Alt-" + name;
621
if (e_prop(e, flipCtrlCmd ? "metaKey" : "ctrlKey")) name = "Ctrl-" + name;
622
if (e_prop(e, flipCtrlCmd ? "ctrlKey" : "metaKey")) name = "Cmd-" + name;
625
function stop() { stopped = true; }
627
if (e_prop(e, "shiftKey")) {
628
handled = lookupKey("Shift-" + name, options.extraKeys, options.keyMap,
629
function(b) {return doHandleBinding(b, true);}, stop)
630
|| lookupKey(name, options.extraKeys, options.keyMap, function(b) {
631
if (typeof b == "string" && /^go[A-Z]/.test(b)) return doHandleBinding(b);
634
handled = lookupKey(name, options.extraKeys, options.keyMap, doHandleBinding, stop);
636
if (stopped) handled = false;
640
if (ie) { e.oldKeyCode = e.keyCode; e.keyCode = 0; }
644
function handleCharBinding(e, ch) {
645
var handled = lookupKey("'" + ch + "'", options.extraKeys,
646
options.keyMap, function(b) { return doHandleBinding(b, true); });
654
var lastStoppedKey = null;
655
function onKeyDown(e) {
656
if (!focused) onFocus();
657
if (ie && e.keyCode == 27) { e.returnValue = false; }
658
if (pollingFast) { if (readInput()) pollingFast = false; }
659
if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return;
660
var code = e_prop(e, "keyCode");
661
// IE does strange things with escape.
662
setShift(code == 16 || e_prop(e, "shiftKey"));
663
// First give onKeyEvent option a chance to handle this.
664
var handled = handleKeyBinding(e);
666
lastStoppedKey = handled ? code : null;
667
// Opera has no cut event... we try to at least catch the key combo
668
if (!handled && code == 88 && e_prop(e, mac ? "metaKey" : "ctrlKey"))
669
replaceSelection("");
672
function onKeyPress(e) {
673
if (pollingFast) readInput();
674
if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return;
675
var keyCode = e_prop(e, "keyCode"), charCode = e_prop(e, "charCode");
676
if (opera && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;}
677
if (((opera && (!e.which || e.which < 10)) || khtml) && handleKeyBinding(e)) return;
678
var ch = String.fromCharCode(charCode == null ? keyCode : charCode);
679
if (options.electricChars && mode.electricChars && options.smartIndent && !options.readOnly) {
680
if (mode.electricChars.indexOf(ch) > -1)
681
setTimeout(operation(function() {indentLine(sel.to.line, "smart");}), 75);
683
if (handleCharBinding(e, ch)) return;
686
function onKeyUp(e) {
687
if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return;
688
if (e_prop(e, "keyCode") == 16) shiftSelecting = null;
692
if (options.readOnly == "nocursor") return;
694
if (options.onFocus) options.onFocus(instance);
696
if (scroller.className.search(/\bCodeMirror-focused\b/) == -1)
697
scroller.className += " CodeMirror-focused";
704
if (options.onBlur) options.onBlur(instance);
706
if (bracketHighlighted)
707
operation(function(){
708
if (bracketHighlighted) { bracketHighlighted(); bracketHighlighted = null; }
710
scroller.className = scroller.className.replace(" CodeMirror-focused", "");
712
clearInterval(blinker);
713
setTimeout(function() {if (!focused) shiftSelecting = null;}, 150);
716
// Replace the range from from to to by the strings in newText.
717
// Afterwards, set the selection to selFrom, selTo.
718
function updateLines(from, to, newText, selFrom, selTo) {
719
if (suppressEdits) return;
721
doc.iter(from.line, to.line + 1, function(line) {
722
old.push(newHL(line.text, line.markedSpans));
725
history.addChange(from.line, newText.length, old);
726
while (history.done.length > options.undoDepth) history.done.shift();
728
var lines = updateMarkedSpans(hlSpans(old[0]), hlSpans(lst(old)), from.ch, to.ch, newText);
729
updateLinesNoUndo(from, to, lines, selFrom, selTo);
731
function unredoHelper(from, to) {
732
if (!from.length) return;
733
var set = from.pop(), out = [];
734
for (var i = set.length - 1; i >= 0; i -= 1) {
736
var replaced = [], end = change.start + change.added;
737
doc.iter(change.start, end, function(line) { replaced.push(newHL(line.text, line.markedSpans)); });
738
out.push({start: change.start, added: change.old.length, old: replaced});
739
var pos = {line: change.start + change.old.length - 1,
740
ch: editEnd(hlText(lst(replaced)), hlText(lst(change.old)))};
741
updateLinesNoUndo({line: change.start, ch: 0}, {line: end - 1, ch: getLine(end-1).text.length},
742
change.old, pos, pos);
747
function undo() {unredoHelper(history.done, history.undone);}
748
function redo() {unredoHelper(history.undone, history.done);}
750
function updateLinesNoUndo(from, to, lines, selFrom, selTo) {
751
if (suppressEdits) return;
752
var recomputeMaxLength = false, maxLineLength = maxLine.text.length;
753
if (!options.lineWrapping)
754
doc.iter(from.line, to.line + 1, function(line) {
755
if (!line.hidden && line.text.length == maxLineLength) {recomputeMaxLength = true; return true;}
757
if (from.line != to.line || lines.length > 1) gutterDirty = true;
759
var nlines = to.line - from.line, firstLine = getLine(from.line), lastLine = getLine(to.line);
760
var lastHL = lst(lines);
762
// First adjust the line structure
763
if (from.ch == 0 && to.ch == 0 && hlText(lastHL) == "") {
764
// This is a whole-line replace. Treated specially to make
765
// sure line objects move the way they are supposed to.
766
var added = [], prevLine = null;
767
for (var i = 0, e = lines.length - 1; i < e; ++i)
768
added.push(new Line(hlText(lines[i]), hlSpans(lines[i])));
769
lastLine.update(lastLine.text, hlSpans(lastHL));
770
if (nlines) doc.remove(from.line, nlines, callbacks);
771
if (added.length) doc.insert(from.line, added);
772
} else if (firstLine == lastLine) {
773
if (lines.length == 1) {
774
firstLine.update(firstLine.text.slice(0, from.ch) + hlText(lines[0]) + firstLine.text.slice(to.ch), hlSpans(lines[0]));
776
for (var added = [], i = 1, e = lines.length - 1; i < e; ++i)
777
added.push(new Line(hlText(lines[i]), hlSpans(lines[i])));
778
added.push(new Line(hlText(lastHL) + firstLine.text.slice(to.ch), hlSpans(lastHL)));
779
firstLine.update(firstLine.text.slice(0, from.ch) + hlText(lines[0]), hlSpans(lines[0]));
780
doc.insert(from.line + 1, added);
782
} else if (lines.length == 1) {
783
firstLine.update(firstLine.text.slice(0, from.ch) + hlText(lines[0]) + lastLine.text.slice(to.ch), hlSpans(lines[0]));
784
doc.remove(from.line + 1, nlines, callbacks);
787
firstLine.update(firstLine.text.slice(0, from.ch) + hlText(lines[0]), hlSpans(lines[0]));
788
lastLine.update(hlText(lastHL) + lastLine.text.slice(to.ch), hlSpans(lastHL));
789
for (var i = 1, e = lines.length - 1; i < e; ++i)
790
added.push(new Line(hlText(lines[i]), hlSpans(lines[i])));
791
if (nlines > 1) doc.remove(from.line + 1, nlines - 1, callbacks);
792
doc.insert(from.line + 1, added);
794
if (options.lineWrapping) {
795
var perLine = Math.max(5, scroller.clientWidth / charWidth() - 3);
796
doc.iter(from.line, from.line + lines.length, function(line) {
797
if (line.hidden) return;
798
var guess = Math.ceil(line.text.length / perLine) || 1;
799
if (guess != line.height) updateLineHeight(line, guess);
802
doc.iter(from.line, from.line + lines.length, function(line) {
804
if (!line.hidden && l.length > maxLineLength) {
805
maxLine = line; maxLineLength = l.length; maxLineChanged = true;
806
recomputeMaxLength = false;
809
if (recomputeMaxLength) updateMaxLine = true;
812
// Adjust frontier, schedule worker
813
frontier = Math.min(frontier, from.line);
816
var lendiff = lines.length - nlines - 1;
817
// Remember that these lines changed, for updating the display
818
changes.push({from: from.line, to: to.line + 1, diff: lendiff});
819
if (options.onChange) {
820
// Normalize lines to contain only strings, since that's what
821
// the change event handler expects
822
for (var i = 0; i < lines.length; ++i)
823
if (typeof lines[i] != "string") lines[i] = lines[i].text;
824
var changeObj = {from: from, to: to, text: lines};
826
for (var cur = textChanged; cur.next; cur = cur.next) {}
827
cur.next = changeObj;
828
} else textChanged = changeObj;
831
// Update the selection
832
function updateLine(n) {return n <= Math.min(to.line, to.line + lendiff) ? n : n + lendiff;}
833
setSelection(clipPos(selFrom), clipPos(selTo),
834
updateLine(sel.from.line), updateLine(sel.to.line));
837
function needsScrollbar() {
838
var realHeight = doc.height * textHeight() + 2 * paddingTop();
839
return realHeight * .99 > scroller.offsetHeight ? realHeight : false;
842
function updateVerticalScroll(scrollTop) {
843
var scrollHeight = needsScrollbar();
844
scrollbar.style.display = scrollHeight ? "block" : "none";
846
scrollbarInner.style.height = sizer.style.minHeight = scrollHeight + "px";
847
scrollbar.style.height = scroller.clientHeight + "px";
848
if (scrollTop != null) {
849
scrollbar.scrollTop = scroller.scrollTop = scrollTop;
850
// 'Nudge' the scrollbar to work around a Webkit bug where,
851
// in some situations, we'd end up with a scrollbar that
852
// reported its scrollTop (and looked) as expected, but
853
// *behaved* as if it was still in a previous state (i.e.
854
// couldn't scroll up, even though it appeared to be at the
856
if (webkit) setTimeout(function() {
857
if (scrollbar.scrollTop != scrollTop) return;
858
scrollbar.scrollTop = scrollTop + (scrollTop ? -1 : 1);
859
scrollbar.scrollTop = scrollTop;
863
sizer.style.minHeight = "";
865
// Position the mover div to align with the current virtual scroll position
866
mover.style.top = displayOffset * textHeight() + "px";
869
function computeMaxLength() {
870
maxLine = getLine(0); maxLineChanged = true;
871
var maxLineLength = maxLine.text.length;
872
doc.iter(1, doc.size, function(line) {
874
if (!line.hidden && l.length > maxLineLength) {
875
maxLineLength = l.length; maxLine = line;
878
updateMaxLine = false;
881
function replaceRange(code, from, to) {
882
from = clipPos(from);
883
if (!to) to = from; else to = clipPos(to);
884
code = splitLines(code);
885
function adjustPos(pos) {
886
if (posLess(pos, from)) return pos;
887
if (!posLess(to, pos)) return end;
888
var line = pos.line + code.length - (to.line - from.line) - 1;
890
if (pos.line == to.line)
891
ch += lst(code).length - (to.ch - (to.line == from.line ? from.ch : 0));
892
return {line: line, ch: ch};
895
replaceRange1(code, from, to, function(end1) {
897
return {from: adjustPos(sel.from), to: adjustPos(sel.to)};
901
function replaceSelection(code, collapse) {
902
replaceRange1(splitLines(code), sel.from, sel.to, function(end) {
903
if (collapse == "end") return {from: end, to: end};
904
else if (collapse == "start") return {from: sel.from, to: sel.from};
905
else return {from: sel.from, to: end};
908
function replaceRange1(code, from, to, computeSel) {
909
var endch = code.length == 1 ? code[0].length + from.ch : lst(code).length;
910
var newSel = computeSel({line: from.line + code.length - 1, ch: endch});
911
updateLines(from, to, code, newSel.from, newSel.to);
914
function getRange(from, to, lineSep) {
915
var l1 = from.line, l2 = to.line;
916
if (l1 == l2) return getLine(l1).text.slice(from.ch, to.ch);
917
var code = [getLine(l1).text.slice(from.ch)];
918
doc.iter(l1 + 1, l2, function(line) { code.push(line.text); });
919
code.push(getLine(l2).text.slice(0, to.ch));
920
return code.join(lineSep || "\n");
922
function getSelection(lineSep) {
923
return getRange(sel.from, sel.to, lineSep);
926
function slowPoll() {
927
if (pollingFast) return;
928
poll.set(options.pollInterval, function() {
930
if (focused) slowPoll();
933
function fastPoll() {
937
var changed = readInput();
938
if (!changed && !missed) {missed = true; poll.set(60, p);}
939
else {pollingFast = false; slowPoll();}
944
// Previnput is a hack to work with IME. If we reset the textarea
945
// on every change, that breaks IME. So we look for changes
946
// compared to the previous content instead. (Modern browsers have
947
// events that indicate IME taking place, but these are not widely
948
// supported or compatible enough yet to rely on.)
950
function readInput() {
951
if (!focused || hasSelection(input) || options.readOnly) return false;
952
var text = input.value;
953
if (text == prevInput) return false;
954
if (!nestedOperation) startOperation();
955
shiftSelecting = null;
956
var same = 0, l = Math.min(prevInput.length, text.length);
957
while (same < l && prevInput[same] == text[same]) ++same;
958
if (same < prevInput.length)
959
sel.from = {line: sel.from.line, ch: sel.from.ch - (prevInput.length - same)};
960
else if (overwrite && posEq(sel.from, sel.to) && !pasteIncoming)
961
sel.to = {line: sel.to.line, ch: Math.min(getLine(sel.to.line).text.length, sel.to.ch + (text.length - same))};
962
replaceSelection(text.slice(same), "end");
963
if (text.length > 1000) { input.value = prevInput = ""; }
964
else prevInput = text;
965
if (!nestedOperation) endOperation();
966
pasteIncoming = false;
969
function resetInput(user) {
970
if (!posEq(sel.from, sel.to)) {
972
input.value = getSelection();
973
if (focused) selectInput(input);
974
} else if (user) prevInput = input.value = "";
977
function focusInput() {
978
if (options.readOnly != "nocursor") input.focus();
981
function scrollCursorIntoView() {
982
var coords = calculateCursorCoords();
983
scrollIntoView(coords.x, coords.y, coords.x, coords.yBot);
984
if (!focused) return;
985
var box = sizer.getBoundingClientRect(), doScroll = null;
986
if (coords.y + box.top < 0) doScroll = true;
987
else if (coords.y + box.top + textHeight() > (window.innerHeight || document.documentElement.clientHeight)) doScroll = false;
988
if (doScroll != null) {
989
var hidden = cursor.style.display == "none";
991
cursor.style.display = "";
992
cursor.style.left = coords.x + "px";
993
cursor.style.top = (coords.y - displayOffset) + "px";
995
cursor.scrollIntoView(doScroll);
996
if (hidden) cursor.style.display = "none";
999
function calculateCursorCoords() {
1000
var cursor = localCoords(sel.inverted ? sel.from : sel.to);
1001
var x = options.lineWrapping ? Math.min(cursor.x, lineSpace.offsetWidth) : cursor.x;
1002
return {x: x, y: cursor.y, yBot: cursor.yBot};
1004
function scrollIntoView(x1, y1, x2, y2) {
1005
var scrollPos = calculateScrollPos(x1, y1, x2, y2);
1006
if (scrollPos.scrollLeft != null) {scroller.scrollLeft = scrollPos.scrollLeft;}
1007
if (scrollPos.scrollTop != null) {scrollbar.scrollTop = scroller.scrollTop = scrollPos.scrollTop;}
1009
function calculateScrollPos(x1, y1, x2, y2) {
1010
var pl = paddingLeft(), pt = paddingTop();
1011
y1 += pt; y2 += pt; x1 += pl; x2 += pl;
1012
var screen = scroller.clientHeight, screentop = scrollbar.scrollTop, result = {};
1013
var docBottom = needsScrollbar() || Infinity;
1014
var atTop = y1 < pt + 10, atBottom = y2 + pt > docBottom - 10;
1015
if (y1 < screentop) result.scrollTop = atTop ? 0 : Math.max(0, y1);
1016
else if (y2 > screentop + screen) result.scrollTop = (atBottom ? docBottom : y2) - screen;
1018
var screenw = scroller.clientWidth, screenleft = scroller.scrollLeft;
1019
var gutterw = options.fixedGutter ? gutter.clientWidth : 0;
1020
var atLeft = x1 < gutterw + pl + 10;
1021
if (x1 < screenleft + gutterw || atLeft) {
1023
result.scrollLeft = Math.max(0, x1 - 10 - gutterw);
1024
} else if (x2 > screenw + screenleft - 3) {
1025
result.scrollLeft = x2 + 10 - screenw;
1030
function visibleLines(scrollTop) {
1031
var lh = textHeight(), top = (scrollTop != null ? scrollTop : scrollbar.scrollTop) - paddingTop();
1032
var fromHeight = Math.max(0, Math.floor(top / lh));
1033
var toHeight = Math.ceil((top + scroller.clientHeight) / lh);
1034
return {from: lineAtHeight(doc, fromHeight),
1035
to: lineAtHeight(doc, toHeight)};
1037
// Uses a set of changes plus the current scroll position to
1038
// determine which DOM updates have to be made, and makes the
1040
function updateDisplay(changes, suppressCallback, scrollTop) {
1041
if (!scroller.clientWidth) {
1042
showingFrom = showingTo = displayOffset = 0;
1045
// Compute the new visible window
1046
// If scrollTop is specified, use that to determine which lines
1047
// to render instead of the current scrollbar position.
1048
var visible = visibleLines(scrollTop);
1049
// Bail out if the visible area is already rendered and nothing changed.
1050
if (changes !== true && changes.length == 0 && visible.from > showingFrom && visible.to < showingTo) {
1051
updateVerticalScroll(scrollTop);
1054
var from = Math.max(visible.from - 100, 0), to = Math.min(doc.size, visible.to + 100);
1055
if (showingFrom < from && from - showingFrom < 20) from = showingFrom;
1056
if (showingTo > to && showingTo - to < 20) to = Math.min(doc.size, showingTo);
1058
// Create a range of theoretically intact lines, and punch holes
1059
// in that using the change info.
1060
var intact = changes === true ? [] :
1061
computeIntact([{from: showingFrom, to: showingTo, domStart: 0}], changes);
1062
// Clip off the parts that won't be visible
1063
var intactLines = 0;
1064
for (var i = 0; i < intact.length; ++i) {
1065
var range = intact[i];
1066
if (range.from < from) {range.domStart += (from - range.from); range.from = from;}
1067
if (range.to > to) range.to = to;
1068
if (range.from >= range.to) intact.splice(i--, 1);
1069
else intactLines += range.to - range.from;
1071
if (intactLines == to - from && from == showingFrom && to == showingTo) {
1072
updateVerticalScroll(scrollTop);
1075
intact.sort(function(a, b) {return a.domStart - b.domStart;});
1077
var th = textHeight(), gutterDisplay = gutter.style.display;
1078
lineDiv.style.display = "none";
1079
patchDisplay(from, to, intact);
1080
lineDiv.style.display = gutter.style.display = "";
1082
var different = from != showingFrom || to != showingTo || lastSizeC != scroller.clientHeight + th;
1083
// This is just a bogus formula that detects when the editor is
1084
// resized or the font size changes.
1085
if (different) lastSizeC = scroller.clientHeight + th;
1086
if (from != showingFrom || to != showingTo && options.onViewportChange)
1087
setTimeout(function(){
1088
if (options.onViewportChange) options.onViewportChange(instance, from, to);
1090
showingFrom = from; showingTo = to;
1091
displayOffset = heightAtLine(doc, from);
1094
// Since this is all rather error prone, it is honoured with the
1095
// only assertion in the whole file.
1096
if (lineDiv.childNodes.length != showingTo - showingFrom)
1097
throw new Error("BAD PATCH! " + JSON.stringify(intact) + " size=" + (showingTo - showingFrom) +
1098
" nodes=" + lineDiv.childNodes.length);
1100
function checkHeights() {
1101
var curNode = lineDiv.firstChild, heightChanged = false;
1102
doc.iter(showingFrom, showingTo, function(line) {
1103
// Work around bizarro IE7 bug where, sometimes, our curNode
1104
// is magically replaced with a new node in the DOM, leaving
1105
// us with a reference to an orphan (nextSibling-less) node.
1106
if (!curNode) return;
1108
var height = Math.round(curNode.offsetHeight / th) || 1;
1109
if (line.height != height) {
1110
updateLineHeight(line, height);
1111
gutterDirty = heightChanged = true;
1114
curNode = curNode.nextSibling;
1116
return heightChanged;
1119
if (options.lineWrapping) checkHeights();
1121
gutter.style.display = gutterDisplay;
1122
if (different || gutterDirty) {
1123
// If the gutter grew in size, re-check heights. If those changed, re-draw gutter.
1124
updateGutter() && options.lineWrapping && checkHeights() && updateGutter();
1126
updateVerticalScroll(scrollTop);
1128
if (!suppressCallback && options.onUpdate) options.onUpdate(instance);
1132
function computeIntact(intact, changes) {
1133
for (var i = 0, l = changes.length || 0; i < l; ++i) {
1134
var change = changes[i], intact2 = [], diff = change.diff || 0;
1135
for (var j = 0, l2 = intact.length; j < l2; ++j) {
1136
var range = intact[j];
1137
if (change.to <= range.from && change.diff)
1138
intact2.push({from: range.from + diff, to: range.to + diff,
1139
domStart: range.domStart});
1140
else if (change.to <= range.from || change.from >= range.to)
1141
intact2.push(range);
1143
if (change.from > range.from)
1144
intact2.push({from: range.from, to: change.from, domStart: range.domStart});
1145
if (change.to < range.to)
1146
intact2.push({from: change.to + diff, to: range.to + diff,
1147
domStart: range.domStart + (change.to - range.from)});
1155
function patchDisplay(from, to, intact) {
1156
function killNode(node) {
1157
var tmp = node.nextSibling;
1158
node.parentNode.removeChild(node);
1161
// The first pass removes the DOM nodes that aren't intact.
1162
if (!intact.length) removeChildren(lineDiv);
1164
var domPos = 0, curNode = lineDiv.firstChild, n;
1165
for (var i = 0; i < intact.length; ++i) {
1166
var cur = intact[i];
1167
while (cur.domStart > domPos) {curNode = killNode(curNode); domPos++;}
1168
for (var j = 0, e = cur.to - cur.from; j < e; ++j) {curNode = curNode.nextSibling; domPos++;}
1170
while (curNode) curNode = killNode(curNode);
1172
// This pass fills in the lines that actually changed.
1173
var nextIntact = intact.shift(), curNode = lineDiv.firstChild, j = from;
1174
doc.iter(from, to, function(line) {
1175
if (nextIntact && nextIntact.to == j) nextIntact = intact.shift();
1176
if (!nextIntact || nextIntact.from > j) {
1177
if (line.hidden) var lineElement = elt("pre");
1179
var lineElement = lineContent(line);
1180
if (line.className) lineElement.className = line.className;
1181
// Kludge to make sure the styled element lies behind the selection (by z-index)
1182
if (line.bgClassName) {
1183
var pre = elt("pre", "\u00a0", line.bgClassName, "position: absolute; left: 0; right: 0; top: 0; bottom: 0; z-index: -2");
1184
lineElement = elt("div", [pre, lineElement], null, "position: relative");
1187
lineDiv.insertBefore(lineElement, curNode);
1189
curNode = curNode.nextSibling;
1195
function updateGutter() {
1196
if (!options.gutter && !options.lineNumbers) return;
1197
var hText = mover.offsetHeight, hEditor = scroller.clientHeight;
1198
gutter.style.height = (hText - hEditor < 2 ? hEditor : hText) + "px";
1199
var fragment = document.createDocumentFragment(), i = showingFrom, normalNode;
1200
doc.iter(showingFrom, Math.max(showingTo, showingFrom + 1), function(line) {
1202
fragment.appendChild(elt("pre"));
1204
var marker = line.gutterMarker;
1205
var text = options.lineNumbers ? options.lineNumberFormatter(i + options.firstLineNumber) : null;
1206
if (marker && marker.text)
1207
text = marker.text.replace("%N%", text != null ? text : "");
1208
else if (text == null)
1210
var markerElement = fragment.appendChild(elt("pre", null, marker && marker.style));
1211
markerElement.innerHTML = text;
1212
for (var j = 1; j < line.height; ++j) {
1213
markerElement.appendChild(elt("br"));
1214
markerElement.appendChild(document.createTextNode("\u00a0"));
1216
if (!marker) normalNode = i;
1220
gutter.style.display = "none";
1221
removeChildrenAndAdd(gutterText, fragment);
1222
// Make sure scrolling doesn't cause number gutter size to pop
1223
if (normalNode != null && options.lineNumbers) {
1224
var node = gutterText.childNodes[normalNode - showingFrom];
1225
var minwidth = String(doc.size).length, val = eltText(node.firstChild), pad = "";
1226
while (val.length + pad.length < minwidth) pad += "\u00a0";
1227
if (pad) node.insertBefore(document.createTextNode(pad), node.firstChild);
1229
gutter.style.display = "";
1230
var resized = Math.abs((parseInt(lineSpace.style.marginLeft) || 0) - gutter.offsetWidth) > 2;
1231
lineSpace.style.marginLeft = gutter.offsetWidth + "px";
1232
gutterDirty = false;
1235
function updateSelection() {
1236
var collapsed = posEq(sel.from, sel.to);
1237
var fromPos = localCoords(sel.from, true);
1238
var toPos = collapsed ? fromPos : localCoords(sel.to, true);
1239
var headPos = sel.inverted ? fromPos : toPos, th = textHeight();
1240
var wrapOff = eltOffset(wrapper), lineOff = eltOffset(lineDiv);
1241
inputDiv.style.top = Math.max(0, Math.min(scroller.offsetHeight, headPos.y + lineOff.top - wrapOff.top)) + "px";
1242
inputDiv.style.left = Math.max(0, Math.min(scroller.offsetWidth, headPos.x + lineOff.left - wrapOff.left)) + "px";
1244
cursor.style.top = headPos.y + "px";
1245
cursor.style.left = (options.lineWrapping ? Math.min(headPos.x, lineSpace.offsetWidth) : headPos.x) + "px";
1246
cursor.style.display = "";
1247
selectionDiv.style.display = "none";
1249
var sameLine = fromPos.y == toPos.y, fragment = document.createDocumentFragment();
1250
var clientWidth = lineSpace.clientWidth || lineSpace.offsetWidth;
1251
var clientHeight = lineSpace.clientHeight || lineSpace.offsetHeight;
1252
var add = function(left, top, right, height) {
1253
var rstyle = quirksMode ? "width: " + (!right ? clientWidth : clientWidth - right - left) + "px"
1254
: "right: " + right + "px";
1255
fragment.appendChild(elt("div", null, "CodeMirror-selected", "position: absolute; left: " + left +
1256
"px; top: " + top + "px; " + rstyle + "; height: " + height + "px"));
1258
if (sel.from.ch && fromPos.y >= 0) {
1259
var right = sameLine ? clientWidth - toPos.x : 0;
1260
add(fromPos.x, fromPos.y, right, th);
1262
var middleStart = Math.max(0, fromPos.y + (sel.from.ch ? th : 0));
1263
var middleHeight = Math.min(toPos.y, clientHeight) - middleStart;
1264
if (middleHeight > 0.2 * th)
1265
add(0, middleStart, 0, middleHeight);
1266
if ((!sameLine || !sel.from.ch) && toPos.y < clientHeight - .5 * th)
1267
add(0, toPos.y, clientWidth - toPos.x, th);
1268
removeChildrenAndAdd(selectionDiv, fragment);
1269
cursor.style.display = "none";
1270
selectionDiv.style.display = "";
1274
function setShift(val) {
1275
if (val) shiftSelecting = shiftSelecting || (sel.inverted ? sel.to : sel.from);
1276
else shiftSelecting = null;
1278
function setSelectionUser(from, to) {
1279
var sh = shiftSelecting && clipPos(shiftSelecting);
1281
if (posLess(sh, from)) from = sh;
1282
else if (posLess(to, sh)) to = sh;
1284
setSelection(from, to);
1285
userSelChange = true;
1287
// Update the selection. Last two args are only used by
1288
// updateLines, since they have to be expressed in the line
1289
// numbers before the update.
1290
function setSelection(from, to, oldFrom, oldTo) {
1292
if (oldFrom == null) {oldFrom = sel.from.line; oldTo = sel.to.line;}
1293
if (posEq(sel.from, from) && posEq(sel.to, to)) return;
1294
if (posLess(to, from)) {var tmp = to; to = from; from = tmp;}
1296
// Skip over hidden lines.
1297
if (from.line != oldFrom) {
1298
var from1 = skipHidden(from, oldFrom, sel.from.ch);
1299
// If there is no non-hidden line left, force visibility on current line
1300
if (!from1) setLineHidden(from.line, false);
1303
if (to.line != oldTo) to = skipHidden(to, oldTo, sel.to.ch);
1305
if (posEq(from, to)) sel.inverted = false;
1306
else if (posEq(from, sel.to)) sel.inverted = false;
1307
else if (posEq(to, sel.from)) sel.inverted = true;
1309
if (options.autoClearEmptyLines && posEq(sel.from, sel.to)) {
1310
var head = sel.inverted ? from : to;
1311
if (head.line != sel.from.line && sel.from.line < doc.size) {
1312
var oldLine = getLine(sel.from.line);
1313
if (/^\s+$/.test(oldLine.text))
1314
setTimeout(operation(function() {
1315
if (oldLine.parent && /^\s+$/.test(oldLine.text)) {
1316
var no = lineNo(oldLine);
1317
replaceRange("", {line: no, ch: 0}, {line: no, ch: oldLine.text.length});
1323
sel.from = from; sel.to = to;
1324
selectionChanged = true;
1326
function skipHidden(pos, oldLine, oldCh) {
1327
function getNonHidden(dir) {
1328
var lNo = pos.line + dir, end = dir == 1 ? doc.size : -1;
1329
while (lNo != end) {
1330
var line = getLine(lNo);
1333
if (toEnd || ch > oldCh || ch > line.text.length) ch = line.text.length;
1334
return {line: lNo, ch: ch};
1339
var line = getLine(pos.line);
1340
var toEnd = pos.ch == line.text.length && pos.ch != oldCh;
1341
if (!line.hidden) return pos;
1342
if (pos.line >= oldLine) return getNonHidden(1) || getNonHidden(-1);
1343
else return getNonHidden(-1) || getNonHidden(1);
1345
function setCursor(line, ch, user) {
1346
var pos = clipPos({line: line, ch: ch || 0});
1347
(user ? setSelectionUser : setSelection)(pos, pos);
1350
function clipLine(n) {return Math.max(0, Math.min(n, doc.size-1));}
1351
function clipPos(pos) {
1352
if (pos.line < 0) return {line: 0, ch: 0};
1353
if (pos.line >= doc.size) return {line: doc.size-1, ch: getLine(doc.size-1).text.length};
1354
var ch = pos.ch, linelen = getLine(pos.line).text.length;
1355
if (ch == null || ch > linelen) return {line: pos.line, ch: linelen};
1356
else if (ch < 0) return {line: pos.line, ch: 0};
1360
function findPosH(dir, unit) {
1361
var end = sel.inverted ? sel.from : sel.to, line = end.line, ch = end.ch;
1362
var lineObj = getLine(line);
1363
function findNextLine() {
1364
for (var l = line + dir, e = dir < 0 ? -1 : doc.size; l != e; l += dir) {
1365
var lo = getLine(l);
1366
if (!lo.hidden) { line = l; lineObj = lo; return true; }
1369
function moveOnce(boundToLine) {
1370
if (ch == (dir < 0 ? 0 : lineObj.text.length)) {
1371
if (!boundToLine && findNextLine()) ch = dir < 0 ? lineObj.text.length : 0;
1376
if (unit == "char") moveOnce();
1377
else if (unit == "column") moveOnce(true);
1378
else if (unit == "word") {
1379
var sawWord = false;
1381
if (dir < 0) if (!moveOnce()) break;
1382
if (isWordChar(lineObj.text.charAt(ch))) sawWord = true;
1383
else if (sawWord) {if (dir < 0) {dir = 1; moveOnce();} break;}
1384
if (dir > 0) if (!moveOnce()) break;
1387
return {line: line, ch: ch};
1389
function moveH(dir, unit) {
1390
var pos = dir < 0 ? sel.from : sel.to;
1391
if (shiftSelecting || posEq(sel.from, sel.to)) pos = findPosH(dir, unit);
1392
setCursor(pos.line, pos.ch, true);
1394
function deleteH(dir, unit) {
1395
if (!posEq(sel.from, sel.to)) replaceRange("", sel.from, sel.to);
1396
else if (dir < 0) replaceRange("", findPosH(dir, unit), sel.to);
1397
else replaceRange("", sel.from, findPosH(dir, unit));
1398
userSelChange = true;
1400
function moveV(dir, unit) {
1401
var dist = 0, pos = localCoords(sel.inverted ? sel.from : sel.to, true);
1402
if (goalColumn != null) pos.x = goalColumn;
1403
if (unit == "page") {
1404
var screen = Math.min(scroller.clientHeight, window.innerHeight || document.documentElement.clientHeight);
1405
var target = coordsChar(pos.x, pos.y + screen * dir);
1406
} else if (unit == "line") {
1407
var th = textHeight();
1408
var target = coordsChar(pos.x, pos.y + .5 * th + dir * th);
1410
if (unit == "page") scrollbar.scrollTop += localCoords(target, true).y - pos.y;
1411
setCursor(target.line, target.ch, true);
1415
function findWordAt(pos) {
1416
var line = getLine(pos.line).text;
1417
var start = pos.ch, end = pos.ch;
1419
if (pos.after === false || end == line.length) --start; else ++end;
1420
var startChar = line.charAt(start);
1421
var check = isWordChar(startChar) ? isWordChar :
1422
/\s/.test(startChar) ? function(ch) {return /\s/.test(ch);} :
1423
function(ch) {return !/\s/.test(ch) && isWordChar(ch);};
1424
while (start > 0 && check(line.charAt(start - 1))) --start;
1425
while (end < line.length && check(line.charAt(end))) ++end;
1427
return {from: {line: pos.line, ch: start}, to: {line: pos.line, ch: end}};
1429
function selectLine(line) {
1430
setSelectionUser({line: line, ch: 0}, clipPos({line: line + 1, ch: 0}));
1432
function indentSelected(mode) {
1433
if (posEq(sel.from, sel.to)) return indentLine(sel.from.line, mode);
1434
var e = sel.to.line - (sel.to.ch ? 0 : 1);
1435
for (var i = sel.from.line; i <= e; ++i) indentLine(i, mode);
1438
function indentLine(n, how) {
1439
if (!how) how = "add";
1440
if (how == "smart") {
1441
if (!mode.indent) how = "prev";
1442
else var state = getStateBefore(n);
1445
var line = getLine(n), curSpace = line.indentation(options.tabSize),
1446
curSpaceString = line.text.match(/^\s*/)[0], indentation;
1447
if (how == "smart") {
1448
indentation = mode.indent(state, line.text.slice(curSpaceString.length), line.text);
1449
if (indentation == Pass) how = "prev";
1451
if (how == "prev") {
1452
if (n) indentation = getLine(n-1).indentation(options.tabSize);
1453
else indentation = 0;
1455
else if (how == "add") indentation = curSpace + options.indentUnit;
1456
else if (how == "subtract") indentation = curSpace - options.indentUnit;
1457
indentation = Math.max(0, indentation);
1458
var diff = indentation - curSpace;
1460
var indentString = "", pos = 0;
1461
if (options.indentWithTabs)
1462
for (var i = Math.floor(indentation / options.tabSize); i; --i) {pos += options.tabSize; indentString += "\t";}
1463
if (pos < indentation) indentString += spaceStr(indentation - pos);
1465
if (indentString != curSpaceString)
1466
replaceRange(indentString, {line: n, ch: 0}, {line: n, ch: curSpaceString.length});
1467
line.stateAfter = null;
1470
function loadMode() {
1471
mode = CodeMirror.getMode(options, options.mode);
1472
doc.iter(0, doc.size, function(line) { line.stateAfter = null; });
1476
function gutterChanged() {
1477
var visible = options.gutter || options.lineNumbers;
1478
gutter.style.display = visible ? "" : "none";
1479
if (visible) gutterDirty = true;
1480
else lineDiv.parentNode.style.marginLeft = 0;
1482
function wrappingChanged(from, to) {
1483
if (options.lineWrapping) {
1484
wrapper.className += " CodeMirror-wrap";
1485
var perLine = scroller.clientWidth / charWidth() - 3;
1486
doc.iter(0, doc.size, function(line) {
1487
if (line.hidden) return;
1488
var guess = Math.ceil(line.text.length / perLine) || 1;
1489
if (guess != 1) updateLineHeight(line, guess);
1491
lineSpace.style.minWidth = widthForcer.style.left = "";
1493
wrapper.className = wrapper.className.replace(" CodeMirror-wrap", "");
1495
doc.iter(0, doc.size, function(line) {
1496
if (line.height != 1 && !line.hidden) updateLineHeight(line, 1);
1499
changes.push({from: 0, to: doc.size});
1501
function themeChanged() {
1502
scroller.className = scroller.className.replace(/\s*cm-s-\S+/g, "") +
1503
options.theme.replace(/(^|\s)\s*/g, " cm-s-");
1505
function keyMapChanged() {
1506
var style = keyMap[options.keyMap].style;
1507
wrapper.className = wrapper.className.replace(/\s*cm-keymap-\S+/g, "") +
1508
(style ? " cm-keymap-" + style : "");
1511
function TextMarker(type, style) { this.lines = []; this.type = type; if (style) this.style = style; }
1512
TextMarker.prototype.clear = operation(function() {
1514
for (var i = 0; i < this.lines.length; ++i) {
1515
var line = this.lines[i];
1516
var span = getMarkedSpanFor(line.markedSpans, this);
1517
if (span.from != null) min = lineNo(line);
1518
if (span.to != null) max = lineNo(line);
1519
line.markedSpans = removeMarkedSpan(line.markedSpans, span);
1521
if (min != null) changes.push({from: min, to: max + 1});
1522
this.lines.length = 0;
1523
this.explicitlyCleared = true;
1525
TextMarker.prototype.find = function() {
1527
for (var i = 0; i < this.lines.length; ++i) {
1528
var line = this.lines[i];
1529
var span = getMarkedSpanFor(line.markedSpans, this);
1530
if (span.from != null || span.to != null) {
1531
var found = lineNo(line);
1532
if (span.from != null) from = {line: found, ch: span.from};
1533
if (span.to != null) to = {line: found, ch: span.to};
1536
if (this.type == "bookmark") return from;
1537
return from && {from: from, to: to};
1540
function markText(from, to, className, options) {
1541
from = clipPos(from); to = clipPos(to);
1542
var marker = new TextMarker("range", className);
1543
if (options) for (var opt in options) if (options.hasOwnProperty(opt))
1544
marker[opt] = options[opt];
1545
var curLine = from.line;
1546
doc.iter(curLine, to.line + 1, function(line) {
1547
var span = {from: curLine == from.line ? from.ch : null,
1548
to: curLine == to.line ? to.ch : null,
1550
line.markedSpans = (line.markedSpans || []).concat([span]);
1551
marker.lines.push(line);
1554
changes.push({from: from.line, to: to.line + 1});
1558
function setBookmark(pos) {
1560
var marker = new TextMarker("bookmark"), line = getLine(pos.line);
1561
history.addChange(pos.line, 1, [newHL(line.text, line.markedSpans)], true);
1562
var span = {from: pos.ch, to: pos.ch, marker: marker};
1563
line.markedSpans = (line.markedSpans || []).concat([span]);
1564
marker.lines.push(line);
1568
function findMarksAt(pos) {
1570
var markers = [], spans = getLine(pos.line).markedSpans;
1571
if (spans) for (var i = 0; i < spans.length; ++i) {
1572
var span = spans[i];
1573
if ((span.from == null || span.from <= pos.ch) &&
1574
(span.to == null || span.to >= pos.ch))
1575
markers.push(span.marker);
1580
function addGutterMarker(line, text, className) {
1581
if (typeof line == "number") line = getLine(clipLine(line));
1582
line.gutterMarker = {text: text, style: className};
1586
function removeGutterMarker(line) {
1587
if (typeof line == "number") line = getLine(clipLine(line));
1588
line.gutterMarker = null;
1592
function changeLine(handle, op) {
1593
var no = handle, line = handle;
1594
if (typeof handle == "number") line = getLine(clipLine(handle));
1595
else no = lineNo(handle);
1596
if (no == null) return null;
1597
if (op(line, no)) changes.push({from: no, to: no + 1});
1601
function setLineClass(handle, className, bgClassName) {
1602
return changeLine(handle, function(line) {
1603
if (line.className != className || line.bgClassName != bgClassName) {
1604
line.className = className;
1605
line.bgClassName = bgClassName;
1610
function setLineHidden(handle, hidden) {
1611
return changeLine(handle, function(line, no) {
1612
if (line.hidden != hidden) {
1613
line.hidden = hidden;
1614
if (!options.lineWrapping) {
1615
if (hidden && line.text.length == maxLine.text.length) {
1616
updateMaxLine = true;
1617
} else if (!hidden && line.text.length > maxLine.text.length) {
1618
maxLine = line; updateMaxLine = false;
1621
updateLineHeight(line, hidden ? 0 : 1);
1622
var fline = sel.from.line, tline = sel.to.line;
1623
if (hidden && (fline == no || tline == no)) {
1624
var from = fline == no ? skipHidden({line: fline, ch: 0}, fline, 0) : sel.from;
1625
var to = tline == no ? skipHidden({line: tline, ch: 0}, tline, 0) : sel.to;
1626
// Can't hide the last visible line, we'd have no place to put the cursor
1628
setSelection(from, to);
1630
return (gutterDirty = true);
1635
function lineInfo(line) {
1636
if (typeof line == "number") {
1637
if (!isLine(line)) return null;
1639
line = getLine(line);
1640
if (!line) return null;
1642
var n = lineNo(line);
1643
if (n == null) return null;
1645
var marker = line.gutterMarker;
1646
return {line: n, handle: line, text: line.text, markerText: marker && marker.text,
1647
markerClass: marker && marker.style, lineClass: line.className, bgClass: line.bgClassName};
1650
function measureLine(line, ch) {
1651
if (ch == 0) return {top: 0, left: 0};
1652
var pre = lineContent(line, ch);
1653
removeChildrenAndAdd(measure, pre);
1654
var anchor = pre.anchor;
1655
var top = anchor.offsetTop, left = anchor.offsetLeft;
1656
// Older IEs report zero offsets for spans directly after a wrap
1657
if (ie && top == 0 && left == 0) {
1658
var backup = elt("span", "x");
1659
anchor.parentNode.insertBefore(backup, anchor.nextSibling);
1660
top = backup.offsetTop;
1662
return {top: top, left: left};
1664
function localCoords(pos, inLineWrap) {
1665
var x, lh = textHeight(), y = lh * (heightAtLine(doc, pos.line) - (inLineWrap ? displayOffset : 0));
1666
if (pos.ch == 0) x = 0;
1668
var sp = measureLine(getLine(pos.line), pos.ch);
1670
if (options.lineWrapping) y += Math.max(0, sp.top);
1672
return {x: x, y: y, yBot: y + lh};
1674
// Coords must be lineSpace-local
1675
function coordsChar(x, y) {
1676
var th = textHeight(), cw = charWidth(), heightPos = displayOffset + Math.floor(y / th);
1677
if (heightPos < 0) return {line: 0, ch: 0};
1678
var lineNo = lineAtHeight(doc, heightPos);
1679
if (lineNo >= doc.size) return {line: doc.size - 1, ch: getLine(doc.size - 1).text.length};
1680
var lineObj = getLine(lineNo), text = lineObj.text;
1681
var tw = options.lineWrapping, innerOff = tw ? heightPos - heightAtLine(doc, lineNo) : 0;
1682
if (x <= 0 && innerOff == 0) return {line: lineNo, ch: 0};
1683
var wrongLine = false;
1684
function getX(len) {
1685
var sp = measureLine(lineObj, len);
1687
var off = Math.round(sp.top / th);
1688
wrongLine = off != innerOff;
1689
return Math.max(0, sp.left + (off - innerOff) * scroller.clientWidth);
1693
var from = 0, fromX = 0, to = text.length, toX;
1694
// Guess a suitable upper bound for our search.
1695
var estimated = Math.min(to, Math.ceil((x + innerOff * scroller.clientWidth * .9) / cw));
1697
var estX = getX(estimated);
1698
if (estX <= x && estimated < to) estimated = Math.min(to, Math.ceil(estimated * 1.2));
1699
else {toX = estX; to = estimated; break;}
1701
if (x > toX) return {line: lineNo, ch: to};
1702
// Try to guess a suitable lower bound as well.
1703
estimated = Math.floor(to * 0.8); estX = getX(estimated);
1704
if (estX < x) {from = estimated; fromX = estX;}
1705
// Do a binary search between these bounds.
1707
if (to - from <= 1) {
1708
var after = x - fromX < toX - x;
1709
return {line: lineNo, ch: after ? from : to, after: after};
1711
var middle = Math.ceil((from + to) / 2), middleX = getX(middle);
1712
if (middleX > x) {to = middle; toX = middleX; if (wrongLine) toX += 1000; }
1713
else {from = middle; fromX = middleX;}
1716
function pageCoords(pos) {
1717
var local = localCoords(pos, true), off = eltOffset(lineSpace);
1718
return {x: off.left + local.x, y: off.top + local.y, yBot: off.top + local.yBot};
1721
var cachedHeight, cachedHeightFor, measurePre;
1722
function textHeight() {
1723
if (measurePre == null) {
1724
measurePre = elt("pre");
1725
for (var i = 0; i < 49; ++i) {
1726
measurePre.appendChild(document.createTextNode("x"));
1727
measurePre.appendChild(elt("br"));
1729
measurePre.appendChild(document.createTextNode("x"));
1731
var offsetHeight = lineDiv.clientHeight;
1732
if (offsetHeight == cachedHeightFor) return cachedHeight;
1733
cachedHeightFor = offsetHeight;
1734
removeChildrenAndAdd(measure, measurePre.cloneNode(true));
1735
cachedHeight = measure.firstChild.offsetHeight / 50 || 1;
1736
removeChildren(measure);
1737
return cachedHeight;
1739
var cachedWidth, cachedWidthFor = 0;
1740
function charWidth() {
1741
if (scroller.clientWidth == cachedWidthFor) return cachedWidth;
1742
cachedWidthFor = scroller.clientWidth;
1743
var anchor = elt("span", "x");
1744
var pre = elt("pre", [anchor]);
1745
removeChildrenAndAdd(measure, pre);
1746
return (cachedWidth = anchor.offsetWidth || 10);
1748
function paddingTop() {return lineSpace.offsetTop;}
1749
function paddingLeft() {return lineSpace.offsetLeft;}
1751
function posFromMouse(e, liberal) {
1752
var offW = eltOffset(scroller, true), x, y;
1753
// Fails unpredictably on IE[67] when mouse is dragged around quickly.
1754
try { x = e.clientX; y = e.clientY; } catch (e) { return null; }
1755
// This is a mess of a heuristic to try and determine whether a
1756
// scroll-bar was clicked or not, and to return null if one was
1758
if (!liberal && (x - offW.left > scroller.clientWidth || y - offW.top > scroller.clientHeight))
1760
var offL = eltOffset(lineSpace, true);
1761
return coordsChar(x - offL.left, y - offL.top);
1763
var detectingSelectAll;
1764
function onContextMenu(e) {
1765
var pos = posFromMouse(e), scrollPos = scrollbar.scrollTop;
1766
if (!pos || opera) return; // Opera is difficult.
1767
if (posEq(sel.from, sel.to) || posLess(pos, sel.from) || !posLess(pos, sel.to))
1768
operation(setCursor)(pos.line, pos.ch);
1770
var oldCSS = input.style.cssText;
1771
inputDiv.style.position = "absolute";
1772
input.style.cssText = "position: fixed; width: 30px; height: 30px; top: " + (e.clientY - 5) +
1773
"px; left: " + (e.clientX - 5) + "px; z-index: 1000; background: white; " +
1774
"border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);";
1777
// Adds "Select all" to context menu in FF
1778
if (posEq(sel.from, sel.to)) input.value = prevInput = " ";
1781
inputDiv.style.position = "relative";
1782
input.style.cssText = oldCSS;
1783
if (ie_lt9) scrollbar.scrollTop = scrollPos;
1786
// Try to detect the user choosing select-all
1787
if (input.selectionStart != null) {
1788
clearTimeout(detectingSelectAll);
1789
var extval = input.value = " " + (posEq(sel.from, sel.to) ? "" : input.value), i = 0;
1791
input.selectionStart = 1; input.selectionEnd = extval.length;
1792
detectingSelectAll = setTimeout(function poll(){
1793
if (prevInput == " " && input.selectionStart == 0)
1794
operation(commands.selectAll)(instance);
1795
else if (i++ < 10) detectingSelectAll = setTimeout(poll, 500);
1803
var mouseup = connect(window, "mouseup", function() {
1805
setTimeout(rehide, 20);
1808
setTimeout(rehide, 50);
1813
function restartBlink() {
1814
clearInterval(blinker);
1816
cursor.style.visibility = "";
1817
blinker = setInterval(function() {
1818
cursor.style.visibility = (on = !on) ? "" : "hidden";
1819
}, options.cursorBlinkRate);
1822
var matching = {"(": ")>", ")": "(<", "[": "]>", "]": "[<", "{": "}>", "}": "{<"};
1823
function matchBrackets(autoclear) {
1824
var head = sel.inverted ? sel.from : sel.to, line = getLine(head.line), pos = head.ch - 1;
1825
var match = (pos >= 0 && matching[line.text.charAt(pos)]) || matching[line.text.charAt(++pos)];
1827
var ch = match.charAt(0), forward = match.charAt(1) == ">", d = forward ? 1 : -1, st = line.styles;
1828
for (var off = pos + 1, i = 0, e = st.length; i < e; i+=2)
1829
if ((off -= st[i].length) <= 0) {var style = st[i+1]; break;}
1831
var stack = [line.text.charAt(pos)], re = /[(){}[\]]/;
1832
function scan(line, from, to) {
1833
if (!line.text) return;
1834
var st = line.styles, pos = forward ? 0 : line.text.length - 1, cur;
1835
for (var i = forward ? 0 : st.length - 2, e = forward ? st.length : -2; i != e; i += 2*d) {
1837
if (st[i+1] != style) {pos += d * text.length; continue;}
1838
for (var j = forward ? 0 : text.length - 1, te = forward ? text.length : -1; j != te; j += d, pos+=d) {
1839
if (pos >= from && pos < to && re.test(cur = text.charAt(j))) {
1840
var match = matching[cur];
1841
if (match.charAt(1) == ">" == forward) stack.push(cur);
1842
else if (stack.pop() != match.charAt(0)) return {pos: pos, match: false};
1843
else if (!stack.length) return {pos: pos, match: true};
1848
for (var i = head.line, e = forward ? Math.min(i + 100, doc.size) : Math.max(-1, i - 100); i != e; i+=d) {
1849
var line = getLine(i), first = i == head.line;
1850
var found = scan(line, first && forward ? pos + 1 : 0, first && !forward ? pos : line.text.length);
1853
if (!found) found = {pos: null, match: false};
1854
var style = found.match ? "CodeMirror-matchingbracket" : "CodeMirror-nonmatchingbracket";
1855
var one = markText({line: head.line, ch: pos}, {line: head.line, ch: pos+1}, style),
1856
two = found.pos != null && markText({line: i, ch: found.pos}, {line: i, ch: found.pos + 1}, style);
1857
var clear = operation(function(){one.clear(); two && two.clear();});
1858
if (autoclear) setTimeout(clear, 800);
1859
else bracketHighlighted = clear;
1862
// Finds the line to start with when starting a parse. Tries to
1863
// find a line with a stateAfter, so that it can start with a
1864
// valid state. If that fails, it returns the line with the
1865
// smallest indentation, which tends to need the least context to
1867
function findStartLine(n) {
1868
var minindent, minline;
1869
for (var search = n, lim = n - 40; search > lim; --search) {
1870
if (search == 0) return 0;
1871
var line = getLine(search-1);
1872
if (line.stateAfter) return search;
1873
var indented = line.indentation(options.tabSize);
1874
if (minline == null || minindent > indented) {
1875
minline = search - 1;
1876
minindent = indented;
1881
function getStateBefore(n) {
1882
var pos = findStartLine(n), state = pos && getLine(pos-1).stateAfter;
1883
if (!state) state = startState(mode);
1884
else state = copyState(mode, state);
1885
doc.iter(pos, n, function(line) {
1886
line.process(mode, state, options.tabSize);
1887
line.stateAfter = (pos == n - 1 || pos % 5 == 0) ? copyState(mode, state) : null;
1891
function highlightWorker() {
1892
if (frontier >= showingTo) return;
1893
var end = +new Date + options.workTime, state = copyState(mode, getStateBefore(frontier));
1894
var startFrontier = frontier;
1895
doc.iter(frontier, showingTo, function(line) {
1896
if (frontier >= showingFrom) { // Visible
1897
line.highlight(mode, state, options.tabSize);
1898
line.stateAfter = copyState(mode, state);
1900
line.process(mode, state, options.tabSize);
1901
line.stateAfter = frontier % 5 == 0 ? copyState(mode, state) : null;
1904
if (+new Date > end) {
1905
startWorker(options.workDelay);
1909
if (showingTo > startFrontier && frontier >= showingFrom)
1910
operation(function() {changes.push({from: startFrontier, to: frontier});})();
1912
function startWorker(time) {
1913
if (frontier < showingTo)
1914
highlight.set(time, highlightWorker);
1917
// Operations are used to wrap changes in such a way that each
1918
// change won't have to update the cursor and display (which would
1919
// be awkward, slow, and error-prone), but instead updates are
1920
// batched and then all combined and executed at once.
1921
function startOperation() {
1922
updateInput = userSelChange = textChanged = null;
1923
changes = []; selectionChanged = false; callbacks = [];
1925
function endOperation() {
1926
if (updateMaxLine) computeMaxLength();
1927
if (maxLineChanged && !options.lineWrapping) {
1928
var cursorWidth = widthForcer.offsetWidth, left = measureLine(maxLine, maxLine.text.length).left;
1930
widthForcer.style.left = left + "px";
1931
lineSpace.style.minWidth = (left + cursorWidth) + "px";
1933
maxLineChanged = false;
1935
var newScrollPos, updated;
1936
if (selectionChanged) {
1937
var coords = calculateCursorCoords();
1938
newScrollPos = calculateScrollPos(coords.x, coords.y, coords.x, coords.yBot);
1940
if (changes.length || newScrollPos && newScrollPos.scrollTop != null)
1941
updated = updateDisplay(changes, true, newScrollPos && newScrollPos.scrollTop);
1943
if (selectionChanged) updateSelection();
1944
if (gutterDirty) updateGutter();
1946
if (newScrollPos) scrollCursorIntoView();
1947
if (selectionChanged) restartBlink();
1949
if (focused && (updateInput === true || (updateInput !== false && selectionChanged)))
1950
resetInput(userSelChange);
1952
if (selectionChanged && options.matchBrackets)
1953
setTimeout(operation(function() {
1954
if (bracketHighlighted) {bracketHighlighted(); bracketHighlighted = null;}
1955
if (posEq(sel.from, sel.to)) matchBrackets(false);
1957
var sc = selectionChanged, cbs = callbacks; // these can be reset by callbacks
1958
if (textChanged && options.onChange && instance)
1959
options.onChange(instance, textChanged);
1960
if (sc && options.onCursorActivity)
1961
options.onCursorActivity(instance);
1962
for (var i = 0; i < cbs.length; ++i) cbs[i](instance);
1963
if (updated && options.onUpdate) options.onUpdate(instance);
1965
var nestedOperation = 0;
1966
function operation(f) {
1968
if (!nestedOperation++) startOperation();
1969
try {var result = f.apply(this, arguments);}
1970
finally {if (!--nestedOperation) endOperation();}
1975
function compoundChange(f) {
1976
history.startCompound();
1977
try { return f(); } finally { history.endCompound(); }
1980
for (var ext in extensions)
1981
if (extensions.propertyIsEnumerable(ext) &&
1982
!instance.propertyIsEnumerable(ext))
1983
instance[ext] = extensions[ext];
1984
for (var i = 0; i < initHooks.length; ++i) initHooks[i](instance);
1986
} // (end of function CodeMirror)
1988
// The default configuration options.
1989
CodeMirror.defaults = {
1994
indentWithTabs: false,
1999
electricChars: true,
2000
autoClearEmptyLines: false,
2003
lineWrapping: false,
2011
onCursorActivity: null,
2012
onViewportChange: null,
2013
onGutterClick: null,
2015
onFocus: null, onBlur: null, onScroll: null,
2016
matchBrackets: false,
2017
cursorBlinkRate: 530,
2024
lineNumberFormatter: function(integer) { return integer; }
2027
var ios = /AppleWebKit/.test(navigator.userAgent) && /Mobile\/\w+/.test(navigator.userAgent);
2028
var mac = ios || /Mac/.test(navigator.platform);
2029
var win = /Win/.test(navigator.platform);
2031
// Known modes, by name and by MIME
2032
var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {};
2033
CodeMirror.defineMode = function(name, mode) {
2034
if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name;
2035
if (arguments.length > 2) {
2036
mode.dependencies = [];
2037
for (var i = 2; i < arguments.length; ++i) mode.dependencies.push(arguments[i]);
2041
CodeMirror.defineMIME = function(mime, spec) {
2042
mimeModes[mime] = spec;
2044
CodeMirror.resolveMode = function(spec) {
2045
if (typeof spec == "string" && mimeModes.hasOwnProperty(spec))
2046
spec = mimeModes[spec];
2047
else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec))
2048
return CodeMirror.resolveMode("application/xml");
2049
if (typeof spec == "string") return {name: spec};
2050
else return spec || {name: "null"};
2052
CodeMirror.getMode = function(options, spec) {
2053
var spec = CodeMirror.resolveMode(spec);
2054
var mfactory = modes[spec.name];
2055
if (!mfactory) return CodeMirror.getMode(options, "text/plain");
2056
var modeObj = mfactory(options, spec);
2057
if (modeExtensions.hasOwnProperty(spec.name)) {
2058
var exts = modeExtensions[spec.name];
2059
for (var prop in exts) if (exts.hasOwnProperty(prop)) modeObj[prop] = exts[prop];
2061
modeObj.name = spec.name;
2064
CodeMirror.listModes = function() {
2066
for (var m in modes)
2067
if (modes.propertyIsEnumerable(m)) list.push(m);
2070
CodeMirror.listMIMEs = function() {
2072
for (var m in mimeModes)
2073
if (mimeModes.propertyIsEnumerable(m)) list.push({mime: m, mode: mimeModes[m]});
2077
var extensions = CodeMirror.extensions = {};
2078
CodeMirror.defineExtension = function(name, func) {
2079
extensions[name] = func;
2083
CodeMirror.defineInitHook = function(f) {initHooks.push(f);};
2085
var modeExtensions = CodeMirror.modeExtensions = {};
2086
CodeMirror.extendMode = function(mode, properties) {
2087
var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});
2088
for (var prop in properties) if (properties.hasOwnProperty(prop))
2089
exts[prop] = properties[prop];
2092
var commands = CodeMirror.commands = {
2093
selectAll: function(cm) {cm.setSelection({line: 0, ch: 0}, {line: cm.lineCount() - 1});},
2094
killLine: function(cm) {
2095
var from = cm.getCursor(true), to = cm.getCursor(false), sel = !posEq(from, to);
2096
if (!sel && cm.getLine(from.line).length == from.ch) cm.replaceRange("", from, {line: from.line + 1, ch: 0});
2097
else cm.replaceRange("", from, sel ? to : {line: from.line});
2099
deleteLine: function(cm) {var l = cm.getCursor().line; cm.replaceRange("", {line: l, ch: 0}, {line: l});},
2100
undo: function(cm) {cm.undo();},
2101
redo: function(cm) {cm.redo();},
2102
goDocStart: function(cm) {cm.setCursor(0, 0, true);},
2103
goDocEnd: function(cm) {cm.setSelection({line: cm.lineCount() - 1}, null, true);},
2104
goLineStart: function(cm) {cm.setCursor(cm.getCursor().line, 0, true);},
2105
goLineStartSmart: function(cm) {
2106
var cur = cm.getCursor();
2107
var text = cm.getLine(cur.line), firstNonWS = Math.max(0, text.search(/\S/));
2108
cm.setCursor(cur.line, cur.ch <= firstNonWS && cur.ch ? 0 : firstNonWS, true);
2110
goLineEnd: function(cm) {cm.setSelection({line: cm.getCursor().line}, null, true);},
2111
goLineUp: function(cm) {cm.moveV(-1, "line");},
2112
goLineDown: function(cm) {cm.moveV(1, "line");},
2113
goPageUp: function(cm) {cm.moveV(-1, "page");},
2114
goPageDown: function(cm) {cm.moveV(1, "page");},
2115
goCharLeft: function(cm) {cm.moveH(-1, "char");},
2116
goCharRight: function(cm) {cm.moveH(1, "char");},
2117
goColumnLeft: function(cm) {cm.moveH(-1, "column");},
2118
goColumnRight: function(cm) {cm.moveH(1, "column");},
2119
goWordLeft: function(cm) {cm.moveH(-1, "word");},
2120
goWordRight: function(cm) {cm.moveH(1, "word");},
2121
delCharLeft: function(cm) {cm.deleteH(-1, "char");},
2122
delCharRight: function(cm) {cm.deleteH(1, "char");},
2123
delWordLeft: function(cm) {cm.deleteH(-1, "word");},
2124
delWordRight: function(cm) {cm.deleteH(1, "word");},
2125
indentAuto: function(cm) {cm.indentSelection("smart");},
2126
indentMore: function(cm) {cm.indentSelection("add");},
2127
indentLess: function(cm) {cm.indentSelection("subtract");},
2128
insertTab: function(cm) {cm.replaceSelection("\t", "end");},
2129
defaultTab: function(cm) {
2130
if (cm.somethingSelected()) cm.indentSelection("add");
2131
else cm.replaceSelection("\t", "end");
2133
transposeChars: function(cm) {
2134
var cur = cm.getCursor(), line = cm.getLine(cur.line);
2135
if (cur.ch > 0 && cur.ch < line.length - 1)
2136
cm.replaceRange(line.charAt(cur.ch) + line.charAt(cur.ch - 1),
2137
{line: cur.line, ch: cur.ch - 1}, {line: cur.line, ch: cur.ch + 1});
2139
newlineAndIndent: function(cm) {
2140
cm.replaceSelection("\n", "end");
2141
cm.indentLine(cm.getCursor().line);
2143
toggleOverwrite: function(cm) {cm.toggleOverwrite();}
2146
var keyMap = CodeMirror.keyMap = {};
2148
"Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
2149
"End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
2150
"Delete": "delCharRight", "Backspace": "delCharLeft", "Tab": "defaultTab", "Shift-Tab": "indentAuto",
2151
"Enter": "newlineAndIndent", "Insert": "toggleOverwrite"
2153
// Note that the save and find-related commands aren't defined by
2154
// default. Unknown commands are simply ignored.
2155
keyMap.pcDefault = {
2156
"Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
2157
"Ctrl-Home": "goDocStart", "Alt-Up": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Down": "goDocEnd",
2158
"Ctrl-Left": "goWordLeft", "Ctrl-Right": "goWordRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
2159
"Ctrl-Backspace": "delWordLeft", "Ctrl-Delete": "delWordRight", "Ctrl-S": "save", "Ctrl-F": "find",
2160
"Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
2161
"Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
2162
fallthrough: "basic"
2164
keyMap.macDefault = {
2165
"Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
2166
"Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goWordLeft",
2167
"Alt-Right": "goWordRight", "Cmd-Left": "goLineStart", "Cmd-Right": "goLineEnd", "Alt-Backspace": "delWordLeft",
2168
"Ctrl-Alt-Backspace": "delWordRight", "Alt-Delete": "delWordRight", "Cmd-S": "save", "Cmd-F": "find",
2169
"Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
2170
"Cmd-[": "indentLess", "Cmd-]": "indentMore",
2171
fallthrough: ["basic", "emacsy"]
2173
keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;
2175
"Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
2176
"Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
2177
"Ctrl-V": "goPageUp", "Shift-Ctrl-V": "goPageDown", "Ctrl-D": "delCharRight", "Ctrl-H": "delCharLeft",
2178
"Alt-D": "delWordRight", "Alt-Backspace": "delWordLeft", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars"
2181
function getKeyMap(val) {
2182
if (typeof val == "string") return keyMap[val];
2185
function lookupKey(name, extraMap, map, handle, stop) {
2186
function lookup(map) {
2187
map = getKeyMap(map);
2188
var found = map[name];
2189
if (found === false) {
2193
if (found != null && handle(found)) return true;
2194
if (map.nofallthrough) {
2198
var fallthrough = map.fallthrough;
2199
if (fallthrough == null) return false;
2200
if (Object.prototype.toString.call(fallthrough) != "[object Array]")
2201
return lookup(fallthrough);
2202
for (var i = 0, e = fallthrough.length; i < e; ++i) {
2203
if (lookup(fallthrough[i])) return true;
2207
if (extraMap && lookup(extraMap)) return true;
2210
function isModifierKey(event) {
2211
var name = keyNames[e_prop(event, "keyCode")];
2212
return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod";
2214
CodeMirror.isModifierKey = isModifierKey;
2216
CodeMirror.fromTextArea = function(textarea, options) {
2217
if (!options) options = {};
2218
options.value = textarea.value;
2219
if (!options.tabindex && textarea.tabindex)
2220
options.tabindex = textarea.tabindex;
2221
// Set autofocus to true if this textarea is focused, or if it has
2222
// autofocus and no other element is focused.
2223
if (options.autofocus == null) {
2224
var hasFocus = document.body;
2225
// doc.activeElement occasionally throws on IE
2226
try { hasFocus = document.activeElement; } catch(e) {}
2227
options.autofocus = hasFocus == textarea ||
2228
textarea.getAttribute("autofocus") != null && hasFocus == document.body;
2231
function save() {textarea.value = instance.getValue();}
2232
if (textarea.form) {
2233
// Deplorable hack to make the submit method do the right thing.
2234
var rmSubmit = connect(textarea.form, "submit", save, true);
2235
if (typeof textarea.form.submit == "function") {
2236
var realSubmit = textarea.form.submit;
2237
textarea.form.submit = function wrappedSubmit() {
2239
textarea.form.submit = realSubmit;
2240
textarea.form.submit();
2241
textarea.form.submit = wrappedSubmit;
2246
textarea.style.display = "none";
2247
var instance = CodeMirror(function(node) {
2248
textarea.parentNode.insertBefore(node, textarea.nextSibling);
2250
instance.save = save;
2251
instance.getTextArea = function() { return textarea; };
2252
instance.toTextArea = function() {
2254
textarea.parentNode.removeChild(instance.getWrapperElement());
2255
textarea.style.display = "";
2256
if (textarea.form) {
2258
if (typeof textarea.form.submit == "function")
2259
textarea.form.submit = realSubmit;
2265
var gecko = /gecko\/\d{7}/i.test(navigator.userAgent);
2266
var ie = /MSIE \d/.test(navigator.userAgent);
2267
var ie_lt8 = /MSIE [1-7]\b/.test(navigator.userAgent);
2268
var ie_lt9 = /MSIE [1-8]\b/.test(navigator.userAgent);
2269
var quirksMode = ie && document.documentMode == 5;
2270
var webkit = /WebKit\//.test(navigator.userAgent);
2271
var chrome = /Chrome\//.test(navigator.userAgent);
2272
var opera = /Opera\//.test(navigator.userAgent);
2273
var safari = /Apple Computer/.test(navigator.vendor);
2274
var khtml = /KHTML\//.test(navigator.userAgent);
2275
var mac_geLion = /Mac OS X 10\D([7-9]|\d\d)\D/.test(navigator.userAgent);
2277
// Utility functions for working with state. Exported because modes
2278
// sometimes need to do this.
2279
function copyState(mode, state) {
2280
if (state === true) return state;
2281
if (mode.copyState) return mode.copyState(state);
2283
for (var n in state) {
2285
if (val instanceof Array) val = val.concat([]);
2290
CodeMirror.copyState = copyState;
2291
function startState(mode, a1, a2) {
2292
return mode.startState ? mode.startState(a1, a2) : true;
2294
CodeMirror.startState = startState;
2295
CodeMirror.innerMode = function(mode, state) {
2296
while (mode.innerMode) {
2297
var info = mode.innerMode(state);
2301
return info || {mode: mode, state: state};
2304
// The character stream used by a mode's parser.
2305
function StringStream(string, tabSize) {
2306
this.pos = this.start = 0;
2307
this.string = string;
2308
this.tabSize = tabSize || 8;
2310
StringStream.prototype = {
2311
eol: function() {return this.pos >= this.string.length;},
2312
sol: function() {return this.pos == 0;},
2313
peek: function() {return this.string.charAt(this.pos) || undefined;},
2315
if (this.pos < this.string.length)
2316
return this.string.charAt(this.pos++);
2318
eat: function(match) {
2319
var ch = this.string.charAt(this.pos);
2320
if (typeof match == "string") var ok = ch == match;
2321
else var ok = ch && (match.test ? match.test(ch) : match(ch));
2322
if (ok) {++this.pos; return ch;}
2324
eatWhile: function(match) {
2325
var start = this.pos;
2326
while (this.eat(match)){}
2327
return this.pos > start;
2329
eatSpace: function() {
2330
var start = this.pos;
2331
while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos;
2332
return this.pos > start;
2334
skipToEnd: function() {this.pos = this.string.length;},
2335
skipTo: function(ch) {
2336
var found = this.string.indexOf(ch, this.pos);
2337
if (found > -1) {this.pos = found; return true;}
2339
backUp: function(n) {this.pos -= n;},
2340
column: function() {return countColumn(this.string, this.start, this.tabSize);},
2341
indentation: function() {return countColumn(this.string, null, this.tabSize);},
2342
match: function(pattern, consume, caseInsensitive) {
2343
if (typeof pattern == "string") {
2344
var cased = function(str) {return caseInsensitive ? str.toLowerCase() : str;};
2345
if (cased(this.string).indexOf(cased(pattern), this.pos) == this.pos) {
2346
if (consume !== false) this.pos += pattern.length;
2350
var match = this.string.slice(this.pos).match(pattern);
2351
if (match && match.index > 0) return null;
2352
if (match && consume !== false) this.pos += match[0].length;
2356
current: function(){return this.string.slice(this.start, this.pos);}
2358
CodeMirror.StringStream = StringStream;
2360
function MarkedSpan(from, to, marker) {
2361
this.from = from; this.to = to; this.marker = marker;
2364
function getMarkedSpanFor(spans, marker) {
2365
if (spans) for (var i = 0; i < spans.length; ++i) {
2366
var span = spans[i];
2367
if (span.marker == marker) return span;
2371
function removeMarkedSpan(spans, span) {
2373
for (var i = 0; i < spans.length; ++i)
2374
if (spans[i] != span) (r || (r = [])).push(spans[i]);
2378
function markedSpansBefore(old, startCh, endCh) {
2379
if (old) for (var i = 0, nw; i < old.length; ++i) {
2380
var span = old[i], marker = span.marker;
2381
var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);
2382
if (startsBefore || marker.type == "bookmark" && span.from == startCh && span.from != endCh) {
2383
var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh);
2384
(nw || (nw = [])).push({from: span.from,
2385
to: endsAfter ? null : span.to,
2392
function markedSpansAfter(old, endCh) {
2393
if (old) for (var i = 0, nw; i < old.length; ++i) {
2394
var span = old[i], marker = span.marker;
2395
var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);
2396
if (endsAfter || marker.type == "bookmark" && span.from == endCh) {
2397
var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh);
2398
(nw || (nw = [])).push({from: startsBefore ? null : span.from - endCh,
2399
to: span.to == null ? null : span.to - endCh,
2406
function updateMarkedSpans(oldFirst, oldLast, startCh, endCh, newText) {
2407
if (!oldFirst && !oldLast) return newText;
2408
// Get the spans that 'stick out' on both sides
2409
var first = markedSpansBefore(oldFirst, startCh);
2410
var last = markedSpansAfter(oldLast, endCh);
2412
// Next, merge those two ends
2413
var sameLine = newText.length == 1, offset = lst(newText).length + (sameLine ? startCh : 0);
2415
// Fix up .to properties of first
2416
for (var i = 0; i < first.length; ++i) {
2417
var span = first[i];
2418
if (span.to == null) {
2419
var found = getMarkedSpanFor(last, span.marker);
2420
if (!found) span.to = startCh;
2421
else if (sameLine) span.to = found.to == null ? null : found.to + offset;
2426
// Fix up .from in last (or move them into first in case of sameLine)
2427
for (var i = 0; i < last.length; ++i) {
2429
if (span.to != null) span.to += offset;
2430
if (span.from == null) {
2431
var found = getMarkedSpanFor(first, span.marker);
2434
if (sameLine) (first || (first = [])).push(span);
2437
span.from += offset;
2438
if (sameLine) (first || (first = [])).push(span);
2443
var newMarkers = [newHL(newText[0], first)];
2445
// Fill gap with whole-line-spans
2446
var gap = newText.length - 2, gapMarkers;
2447
if (gap > 0 && first)
2448
for (var i = 0; i < first.length; ++i)
2449
if (first[i].to == null)
2450
(gapMarkers || (gapMarkers = [])).push({from: null, to: null, marker: first[i].marker});
2451
for (var i = 0; i < gap; ++i)
2452
newMarkers.push(newHL(newText[i+1], gapMarkers));
2453
newMarkers.push(newHL(lst(newText), last));
2458
// hl stands for history-line, a data structure that can be either a
2459
// string (line without markers) or a {text, markedSpans} object.
2460
function hlText(val) { return typeof val == "string" ? val : val.text; }
2461
function hlSpans(val) {
2462
if (typeof val == "string") return null;
2463
var spans = val.markedSpans, out = null;
2464
for (var i = 0; i < spans.length; ++i) {
2465
if (spans[i].marker.explicitlyCleared) { if (!out) out = spans.slice(0, i); }
2466
else if (out) out.push(spans[i]);
2468
return !out ? spans : out.length ? out : null;
2470
function newHL(text, spans) { return spans ? {text: text, markedSpans: spans} : text; }
2472
function detachMarkedSpans(line) {
2473
var spans = line.markedSpans;
2475
for (var i = 0; i < spans.length; ++i) {
2476
var lines = spans[i].marker.lines;
2477
var ix = indexOf(lines, line);
2478
lines.splice(ix, 1);
2480
line.markedSpans = null;
2483
function attachMarkedSpans(line, spans) {
2485
for (var i = 0; i < spans.length; ++i)
2486
var marker = spans[i].marker.lines.push(line);
2487
line.markedSpans = spans;
2490
// When measuring the position of the end of a line, different
2491
// browsers require different approaches. If an empty span is added,
2492
// many browsers report bogus offsets. Of those, some (Webkit,
2493
// recent IE) will accept a space without moving the whole span to
2494
// the next line when wrapping it, others work with a zero-width
2496
var eolSpanContent = " ";
2497
if (gecko || (ie && !ie_lt8)) eolSpanContent = "\u200b";
2498
else if (opera) eolSpanContent = "";
2500
// Line objects. These hold state related to a line, including
2501
// highlighting info (the styles array).
2502
function Line(text, markedSpans) {
2505
attachMarkedSpans(this, markedSpans);
2508
update: function(text, markedSpans) {
2510
this.stateAfter = this.styles = null;
2511
detachMarkedSpans(this);
2512
attachMarkedSpans(this, markedSpans);
2514
// Run the given mode's parser over a line, update the styles
2515
// array, which contains alternating fragments of text and CSS
2517
highlight: function(mode, state, tabSize) {
2518
var stream = new StringStream(this.text, tabSize), st = this.styles || (this.styles = []);
2519
var pos = st.length = 0;
2520
if (this.text == "" && mode.blankLine) mode.blankLine(state);
2521
while (!stream.eol()) {
2522
var style = mode.token(stream, state), substr = stream.current();
2523
stream.start = stream.pos;
2524
if (pos && st[pos-1] == style) {
2525
st[pos-2] += substr;
2526
} else if (substr) {
2527
st[pos++] = substr; st[pos++] = style;
2529
// Give up when line is ridiculously long
2530
if (stream.pos > 5000) {
2531
st[pos++] = this.text.slice(stream.pos); st[pos++] = null;
2536
process: function(mode, state, tabSize) {
2537
var stream = new StringStream(this.text, tabSize);
2538
if (this.text == "" && mode.blankLine) mode.blankLine(state);
2539
while (!stream.eol() && stream.pos <= 5000) {
2540
mode.token(stream, state);
2541
stream.start = stream.pos;
2544
// Fetch the parser token for a given character. Useful for hacks
2545
// that want to inspect the mode state (say, for completion).
2546
getTokenAt: function(mode, state, tabSize, ch) {
2547
var txt = this.text, stream = new StringStream(txt, tabSize);
2548
while (stream.pos < ch && !stream.eol()) {
2549
stream.start = stream.pos;
2550
var style = mode.token(stream, state);
2552
return {start: stream.start,
2554
string: stream.current(),
2555
className: style || null,
2558
indentation: function(tabSize) {return countColumn(this.text, null, tabSize);},
2559
// Produces an HTML fragment for the line, taking selection,
2560
// marking, and highlighting into account.
2561
getContent: function(tabSize, wrapAt, compensateForWrapping) {
2562
var first = true, col = 0, specials = /[\t\u0000-\u0019\u200b\u2028\u2029\uFEFF]/g;
2563
var pre = elt("pre");
2564
function span_(html, text, style) {
2566
// Work around a bug where, in some compat modes, IE ignores leading spaces
2567
if (first && ie && text.charAt(0) == " ") text = "\u00a0" + text.slice(1);
2569
if (!specials.test(text)) {
2571
var content = document.createTextNode(text);
2573
var content = document.createDocumentFragment(), pos = 0;
2575
specials.lastIndex = pos;
2576
var m = specials.exec(text);
2577
var skipped = m ? m.index - pos : text.length - pos;
2579
content.appendChild(document.createTextNode(text.slice(pos, pos + skipped)));
2585
var tabWidth = tabSize - col % tabSize;
2586
content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"));
2589
var token = elt("span", "\u2022", "cm-invalidchar");
2590
token.title = "\\u" + m[0].charCodeAt(0).toString(16);
2591
content.appendChild(token);
2596
if (style) html.appendChild(elt("span", [content], style));
2597
else html.appendChild(content);
2600
if (wrapAt != null) {
2601
var outPos = 0, anchor = pre.anchor = elt("span");
2602
span = function(html, text, style) {
2603
var l = text.length;
2604
if (wrapAt >= outPos && wrapAt < outPos + l) {
2605
var cut = wrapAt - outPos;
2607
span_(html, text.slice(0, cut), style);
2608
// See comment at the definition of spanAffectsWrapping
2609
if (compensateForWrapping) {
2610
var view = text.slice(cut - 1, cut + 1);
2611
if (spanAffectsWrapping.test(view)) html.appendChild(elt("wbr"));
2612
else if (!ie_lt8 && /\w\w/.test(view)) html.appendChild(document.createTextNode("\u200d"));
2615
html.appendChild(anchor);
2616
span_(anchor, opera ? text.slice(cut, cut + 1) : text.slice(cut), style);
2617
if (opera) span_(html, text.slice(cut + 1), style);
2622
span_(html, text, style);
2623
if (outPos == wrapAt && outPos == len) {
2624
setTextContent(anchor, eolSpanContent);
2625
html.appendChild(anchor);
2627
// Stop outputting HTML when gone sufficiently far beyond measure
2628
else if (outPos > wrapAt + 10 && /\s/.test(text)) span = function(){};
2633
var st = this.styles, allText = this.text, marked = this.markedSpans;
2634
var len = allText.length;
2635
function styleToClass(style) {
2636
if (!style) return null;
2637
return "cm-" + style.replace(/ +/g, " cm-");
2639
if (!allText && wrapAt == null) {
2641
} else if (!marked || !marked.length) {
2642
for (var i = 0, ch = 0; ch < len; i+=2) {
2643
var str = st[i], style = st[i+1], l = str.length;
2644
if (ch + l > len) str = str.slice(0, len - ch);
2646
span(pre, str, styleToClass(style));
2649
marked.sort(function(a, b) { return a.from - b.from; });
2650
var pos = 0, i = 0, text = "", style, sg = 0;
2651
var nextChange = marked[0].from || 0, marks = [], markpos = 0;
2652
var advanceMarks = function() {
2654
while (markpos < marked.length &&
2655
((m = marked[markpos]).from == pos || m.from == null)) {
2656
if (m.marker.type == "range") marks.push(m);
2659
nextChange = markpos < marked.length ? marked[markpos].from : Infinity;
2660
for (var i = 0; i < marks.length; ++i) {
2661
var to = marks[i].to;
2662
if (to == null) to = Infinity;
2663
if (to == pos) marks.splice(i--, 1);
2664
else nextChange = Math.min(to, nextChange);
2669
if (nextChange == pos) advanceMarks();
2670
var upto = Math.min(len, nextChange);
2673
var end = pos + text.length;
2674
var appliedStyle = style;
2675
for (var j = 0; j < marks.length; ++j) {
2676
var mark = marks[j];
2677
appliedStyle = (appliedStyle ? appliedStyle + " " : "") + mark.marker.style;
2678
if (mark.marker.endStyle && mark.to === Math.min(end, upto)) appliedStyle += " " + mark.marker.endStyle;
2679
if (mark.marker.startStyle && mark.from === pos) appliedStyle += " " + mark.marker.startStyle;
2681
span(pre, end > upto ? text.slice(0, upto - pos) : text, appliedStyle);
2682
if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;}
2685
text = st[i++]; style = styleToClass(st[i++]);
2691
cleanUp: function() {
2693
detachMarkedSpans(this);
2697
// Data structure that holds the sequence of lines.
2698
function LeafChunk(lines) {
2701
for (var i = 0, e = lines.length, height = 0; i < e; ++i) {
2702
lines[i].parent = this;
2703
height += lines[i].height;
2705
this.height = height;
2707
LeafChunk.prototype = {
2708
chunkSize: function() { return this.lines.length; },
2709
remove: function(at, n, callbacks) {
2710
for (var i = at, e = at + n; i < e; ++i) {
2711
var line = this.lines[i];
2712
this.height -= line.height;
2715
for (var j = 0; j < line.handlers.length; ++j) callbacks.push(line.handlers[j]);
2717
this.lines.splice(at, n);
2719
collapse: function(lines) {
2720
lines.splice.apply(lines, [lines.length, 0].concat(this.lines));
2722
insertHeight: function(at, lines, height) {
2723
this.height += height;
2724
this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
2725
for (var i = 0, e = lines.length; i < e; ++i) lines[i].parent = this;
2727
iterN: function(at, n, op) {
2728
for (var e = at + n; at < e; ++at)
2729
if (op(this.lines[at])) return true;
2732
function BranchChunk(children) {
2733
this.children = children;
2734
var size = 0, height = 0;
2735
for (var i = 0, e = children.length; i < e; ++i) {
2736
var ch = children[i];
2737
size += ch.chunkSize(); height += ch.height;
2741
this.height = height;
2744
BranchChunk.prototype = {
2745
chunkSize: function() { return this.size; },
2746
remove: function(at, n, callbacks) {
2748
for (var i = 0; i < this.children.length; ++i) {
2749
var child = this.children[i], sz = child.chunkSize();
2751
var rm = Math.min(n, sz - at), oldHeight = child.height;
2752
child.remove(at, rm, callbacks);
2753
this.height -= oldHeight - child.height;
2754
if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }
2755
if ((n -= rm) == 0) break;
2759
if (this.size - n < 25) {
2761
this.collapse(lines);
2762
this.children = [new LeafChunk(lines)];
2763
this.children[0].parent = this;
2766
collapse: function(lines) {
2767
for (var i = 0, e = this.children.length; i < e; ++i) this.children[i].collapse(lines);
2769
insert: function(at, lines) {
2771
for (var i = 0, e = lines.length; i < e; ++i) height += lines[i].height;
2772
this.insertHeight(at, lines, height);
2774
insertHeight: function(at, lines, height) {
2775
this.size += lines.length;
2776
this.height += height;
2777
for (var i = 0, e = this.children.length; i < e; ++i) {
2778
var child = this.children[i], sz = child.chunkSize();
2780
child.insertHeight(at, lines, height);
2781
if (child.lines && child.lines.length > 50) {
2782
while (child.lines.length > 50) {
2783
var spilled = child.lines.splice(child.lines.length - 25, 25);
2784
var newleaf = new LeafChunk(spilled);
2785
child.height -= newleaf.height;
2786
this.children.splice(i + 1, 0, newleaf);
2787
newleaf.parent = this;
2796
maybeSpill: function() {
2797
if (this.children.length <= 10) return;
2800
var spilled = me.children.splice(me.children.length - 5, 5);
2801
var sibling = new BranchChunk(spilled);
2802
if (!me.parent) { // Become the parent node
2803
var copy = new BranchChunk(me.children);
2805
me.children = [copy, sibling];
2808
me.size -= sibling.size;
2809
me.height -= sibling.height;
2810
var myIndex = indexOf(me.parent.children, me);
2811
me.parent.children.splice(myIndex + 1, 0, sibling);
2813
sibling.parent = me.parent;
2814
} while (me.children.length > 10);
2815
me.parent.maybeSpill();
2817
iter: function(from, to, op) { this.iterN(from, to - from, op); },
2818
iterN: function(at, n, op) {
2819
for (var i = 0, e = this.children.length; i < e; ++i) {
2820
var child = this.children[i], sz = child.chunkSize();
2822
var used = Math.min(n, sz - at);
2823
if (child.iterN(at, used, op)) return true;
2824
if ((n -= used) == 0) break;
2831
function getLineAt(chunk, n) {
2832
while (!chunk.lines) {
2833
for (var i = 0;; ++i) {
2834
var child = chunk.children[i], sz = child.chunkSize();
2835
if (n < sz) { chunk = child; break; }
2839
return chunk.lines[n];
2841
function lineNo(line) {
2842
if (line.parent == null) return null;
2843
var cur = line.parent, no = indexOf(cur.lines, line);
2844
for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
2845
for (var i = 0, e = chunk.children.length; ; ++i) {
2846
if (chunk.children[i] == cur) break;
2847
no += chunk.children[i].chunkSize();
2852
function lineAtHeight(chunk, h) {
2855
for (var i = 0, e = chunk.children.length; i < e; ++i) {
2856
var child = chunk.children[i], ch = child.height;
2857
if (h < ch) { chunk = child; continue outer; }
2859
n += child.chunkSize();
2862
} while (!chunk.lines);
2863
for (var i = 0, e = chunk.lines.length; i < e; ++i) {
2864
var line = chunk.lines[i], lh = line.height;
2870
function heightAtLine(chunk, n) {
2873
for (var i = 0, e = chunk.children.length; i < e; ++i) {
2874
var child = chunk.children[i], sz = child.chunkSize();
2875
if (n < sz) { chunk = child; continue outer; }
2880
} while (!chunk.lines);
2881
for (var i = 0; i < n; ++i) h += chunk.lines[i].height;
2885
// The history object 'chunks' changes that are made close together
2886
// and at almost the same time into bigger undoable units.
2887
function History() {
2889
this.done = []; this.undone = [];
2891
this.closed = false;
2893
History.prototype = {
2894
addChange: function(start, added, old) {
2895
this.undone.length = 0;
2896
var time = +new Date, cur = lst(this.done), last = cur && lst(cur);
2897
var dtime = time - this.time;
2899
if (cur && !this.closed && this.compound) {
2900
cur.push({start: start, added: added, old: old});
2901
} else if (dtime > 400 || !last || this.closed ||
2902
last.start > start + old.length || last.start + last.added < start) {
2903
this.done.push([{start: start, added: added, old: old}]);
2904
this.closed = false;
2906
var startBefore = Math.max(0, last.start - start),
2907
endAfter = Math.max(0, (start + old.length) - (last.start + last.added));
2908
for (var i = startBefore; i > 0; --i) last.old.unshift(old[i - 1]);
2909
for (var i = endAfter; i > 0; --i) last.old.push(old[old.length - i]);
2910
if (startBefore) last.start = start;
2911
last.added += added - (old.length - startBefore - endAfter);
2915
startCompound: function() {
2916
if (!this.compound++) this.closed = true;
2918
endCompound: function() {
2919
if (!--this.compound) this.closed = true;
2923
function stopMethod() {e_stop(this);}
2924
// Ensure an event has a stop method.
2925
function addStop(event) {
2926
if (!event.stop) event.stop = stopMethod;
2930
function e_preventDefault(e) {
2931
if (e.preventDefault) e.preventDefault();
2932
else e.returnValue = false;
2934
function e_stopPropagation(e) {
2935
if (e.stopPropagation) e.stopPropagation();
2936
else e.cancelBubble = true;
2938
function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);}
2939
CodeMirror.e_stop = e_stop;
2940
CodeMirror.e_preventDefault = e_preventDefault;
2941
CodeMirror.e_stopPropagation = e_stopPropagation;
2943
function e_target(e) {return e.target || e.srcElement;}
2944
function e_button(e) {
2947
if (e.button & 1) b = 1;
2948
else if (e.button & 2) b = 3;
2949
else if (e.button & 4) b = 2;
2951
if (mac && e.ctrlKey && b == 1) b = 3;
2955
// Allow 3rd-party code to override event properties by adding an override
2956
// object to an event object.
2957
function e_prop(e, prop) {
2958
var overridden = e.override && e.override.hasOwnProperty(prop);
2959
return overridden ? e.override[prop] : e[prop];
2962
// Event handler registration. If disconnect is true, it'll return a
2963
// function that unregisters the handler.
2964
function connect(node, type, handler, disconnect) {
2965
if (typeof node.addEventListener == "function") {
2966
node.addEventListener(type, handler, false);
2967
if (disconnect) return function() {node.removeEventListener(type, handler, false);};
2969
var wrapHandler = function(event) {handler(event || window.event);};
2970
node.attachEvent("on" + type, wrapHandler);
2971
if (disconnect) return function() {node.detachEvent("on" + type, wrapHandler);};
2974
CodeMirror.connect = connect;
2976
function Delayed() {this.id = null;}
2977
Delayed.prototype = {set: function(ms, f) {clearTimeout(this.id); this.id = setTimeout(f, ms);}};
2979
var Pass = CodeMirror.Pass = {toString: function(){return "CodeMirror.Pass";}};
2981
// Detect drag-and-drop
2982
var dragAndDrop = function() {
2983
// There is *some* kind of drag-and-drop support in IE6-8, but I
2984
// couldn't get it to work yet.
2985
if (ie_lt9) return false;
2986
var div = elt('div');
2987
return "draggable" in div || "dragDrop" in div;
2990
// Feature-detect whether newlines in textareas are converted to \r\n
2991
var lineSep = function () {
2992
var te = elt("textarea");
2993
te.value = "foo\nbar";
2994
if (te.value.indexOf("\r") > -1) return "\r\n";
2998
// For a reason I have yet to figure out, some browsers disallow
2999
// word wrapping between certain characters *only* if a new inline
3000
// element is started between them. This makes it hard to reliably
3001
// measure the position of things, since that requires inserting an
3002
// extra span. This terribly fragile set of regexps matches the
3003
// character combinations that suffer from this phenomenon on the
3004
// various browsers.
3005
var spanAffectsWrapping = /^$/; // Won't match any two-character string
3006
if (gecko) spanAffectsWrapping = /$'/;
3007
else if (safari) spanAffectsWrapping = /\-[^ \-?]|\?[^ !'\"\),.\-\/:;\?\]\}]/;
3008
else if (chrome) spanAffectsWrapping = /\-[^ \-\.?]|\?[^ \-\.?\]\}:;!'\"\),\/]|[\.!\"#&%\)*+,:;=>\]|\}~][\(\{\[<]|\$'/;
3010
// Counts the column offset in a string, taking tabs into account.
3011
// Used mostly to find indentation.
3012
function countColumn(string, end, tabSize) {
3014
end = string.search(/[^\s\u00a0]/);
3015
if (end == -1) end = string.length;
3017
for (var i = 0, n = 0; i < end; ++i) {
3018
if (string.charAt(i) == "\t") n += tabSize - (n % tabSize);
3024
function eltOffset(node, screen) {
3025
// Take the parts of bounding client rect that we are interested in so we are able to edit if need be,
3026
// since the returned value cannot be changed externally (they are kept in sync as the element moves within the page)
3027
try { var box = node.getBoundingClientRect(); box = { top: box.top, left: box.left }; }
3028
catch(e) { box = {top: 0, left: 0}; }
3030
// Get the toplevel scroll, working around browser differences.
3031
if (window.pageYOffset == null) {
3032
var t = document.documentElement || document.body.parentNode;
3033
if (t.scrollTop == null) t = document.body;
3034
box.top += t.scrollTop; box.left += t.scrollLeft;
3036
box.top += window.pageYOffset; box.left += window.pageXOffset;
3042
function eltText(node) {
3043
return node.textContent || node.innerText || node.nodeValue || "";
3046
var spaceStrs = [""];
3047
function spaceStr(n) {
3048
while (spaceStrs.length <= n)
3049
spaceStrs.push(lst(spaceStrs) + " ");
3050
return spaceStrs[n];
3053
function lst(arr) { return arr[arr.length-1]; }
3055
function selectInput(node) {
3056
if (ios) { // Mobile Safari apparently has a bug where select() is broken.
3057
node.selectionStart = 0;
3058
node.selectionEnd = node.value.length;
3059
} else node.select();
3062
// Operations on {line, ch} objects.
3063
function posEq(a, b) {return a.line == b.line && a.ch == b.ch;}
3064
function posLess(a, b) {return a.line < b.line || (a.line == b.line && a.ch < b.ch);}
3065
function copyPos(x) {return {line: x.line, ch: x.ch};}
3067
function elt(tag, content, className, style) {
3068
var e = document.createElement(tag);
3069
if (className) e.className = className;
3070
if (style) e.style.cssText = style;
3071
if (typeof content == "string") setTextContent(e, content);
3072
else if (content) for (var i = 0; i < content.length; ++i) e.appendChild(content[i]);
3075
function removeChildren(e) {
3079
function removeChildrenAndAdd(parent, e) {
3080
removeChildren(parent).appendChild(e);
3082
function setTextContent(e, str) {
3085
e.appendChild(document.createTextNode(str));
3086
} else e.textContent = str;
3089
// Used to position the cursor after an undo/redo by finding the
3090
// last edited character.
3091
function editEnd(from, to) {
3093
if (!from) return to.length;
3094
for (var i = from.length, j = to.length; i >= 0 && j >= 0; --i, --j)
3095
if (from.charAt(i) != to.charAt(j)) break;
3099
function indexOf(collection, elt) {
3100
if (collection.indexOf) return collection.indexOf(elt);
3101
for (var i = 0, e = collection.length; i < e; ++i)
3102
if (collection[i] == elt) return i;
3105
function isWordChar(ch) {
3106
return /\w/.test(ch) || ch.toUpperCase() != ch.toLowerCase() || /[\u4E00-\u9FA5]/.test(ch);
3109
// See if "".split is the broken IE version, if so, provide an
3110
// alternative way to split lines.
3111
var splitLines = "\n\nb".split(/\n/).length != 3 ? function(string) {
3112
var pos = 0, result = [], l = string.length;
3114
var nl = string.indexOf("\n", pos);
3115
if (nl == -1) nl = string.length;
3116
var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl);
3117
var rt = line.indexOf("\r");
3119
result.push(line.slice(0, rt));
3127
} : function(string){return string.split(/\r\n?|\n/);};
3128
CodeMirror.splitLines = splitLines;
3130
var hasSelection = window.getSelection ? function(te) {
3131
try { return te.selectionStart != te.selectionEnd; }
3132
catch(e) { return false; }
3134
try {var range = te.ownerDocument.selection.createRange();}
3136
if (!range || range.parentElement() != te) return false;
3137
return range.compareEndPoints("StartToEnd", range) != 0;
3140
CodeMirror.defineMode("null", function() {
3141
return {token: function(stream) {stream.skipToEnd();}};
3143
CodeMirror.defineMIME("text/plain", "null");
3145
var keyNames = {3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
3146
19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
3147
36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
3148
46: "Delete", 59: ";", 91: "Mod", 92: "Mod", 93: "Mod", 109: "-", 107: "=", 127: "Delete",
3149
186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
3150
221: "]", 222: "'", 63276: "PageUp", 63277: "PageDown", 63275: "End", 63273: "Home",
3151
63234: "Left", 63232: "Up", 63235: "Right", 63233: "Down", 63302: "Insert", 63272: "Delete"};
3152
CodeMirror.keyNames = keyNames;
3155
for (var i = 0; i < 10; i++) keyNames[i + 48] = String(i);
3157
for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i);
3159
for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i;
3162
CodeMirror.version = "2.35";
added
removed
timeline/Highstock-1.3.10/exporting-server/java/highcharts-export/highcharts-export-web/src/main/webapp/resources/lib/codemirror/codemirror.js
