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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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var 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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// The element in which the editor lives.
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var wrapper = document.createElement("div");
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wrapper.className = "CodeMirror" + (options.lineWrapping ? " CodeMirror-wrap" : "");
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// This mess creates the base DOM structure for the editor.
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wrapper.innerHTML =
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'<div style="overflow: hidden; position: relative; width: 3px; height: 0px;">' + // Wraps and hides input textarea
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'<textarea style="position: absolute; padding: 0; width: 1px; height: 1em" wrap="off" ' +
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'autocorrect="off" autocapitalize="off"></textarea></div>' +
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'<div class="CodeMirror-scrollbar">' + // The vertical scrollbar. Horizontal scrolling is handled by the scroller itself.
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'<div class="CodeMirror-scrollbar-inner">' + // The empty scrollbar content, used solely for managing the scrollbar thumb.
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'</div></div>' + // This must be before the scroll area because it's float-right.
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'<div class="CodeMirror-scroll" tabindex="-1">' +
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'<div style="position: relative">' + // Set to the height of the text, causes scrolling
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'<div style="position: relative">' + // Moved around its parent to cover visible view
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'<div class="CodeMirror-gutter"><div class="CodeMirror-gutter-text"></div></div>' +
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// Provides positioning relative to (visible) text origin
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'<div class="CodeMirror-lines"><div style="position: relative; z-index: 0">' +
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// Used to measure text size
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'<div style="position: absolute; width: 100%; height: 0px; overflow: hidden; visibility: hidden;"></div>' +
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'<pre class="CodeMirror-cursor"> </pre>' + // Absolutely positioned blinky cursor
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'<pre class="CodeMirror-cursor" style="visibility: hidden"> </pre>' + // Used to force a width
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'<div style="position: relative; z-index: -1"></div><div></div>' + // DIVs containing the selection and the actual code
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'</div></div></div></div></div>';
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if (place.appendChild) place.appendChild(wrapper); else place(wrapper);
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// I've never seen more elegant code in my life.
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var inputDiv = wrapper.firstChild, input = inputDiv.firstChild,
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scroller = wrapper.lastChild, code = scroller.firstChild,
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mover = code.firstChild, gutter = mover.firstChild, gutterText = gutter.firstChild,
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lineSpace = gutter.nextSibling.firstChild, measure = lineSpace.firstChild,
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cursor = measure.nextSibling, widthForcer = cursor.nextSibling,
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selectionDiv = widthForcer.nextSibling, lineDiv = selectionDiv.nextSibling,
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scrollbar = inputDiv.nextSibling, scrollbarInner = scrollbar.firstChild;
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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. If so, we need to force a width on the scrollbar, and
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// make it overlap the content. (But we only do this if the scrollbar doesn't already
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// have a natural width. If the mouse is plugged in or the user sets the system pref
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// to always show scrollbars, the scrollbar shouldn't overlap.)
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if (mac_geLion) {
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scrollbar.className += (overlapScrollbars() ? " cm-sb-overlap" : " cm-sb-nonoverlap");
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} else if (ie_lt8) {
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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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scrollbar.className += " cm-sb-ie7";
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}
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// Check for problem with IE innerHTML not working when we have a
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// P (or similar) parent node.
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try { stringWidth("x"); }
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catch (e) {
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if (e.message.match(/runtime/i))
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e = new Error("A CodeMirror inside a P-style element does not work in Internet Explorer. (innerHTML bug)");
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throw e;
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}
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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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// work an array of lines that should be parsed, and history the
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// undo history (instance of History constructor).
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var mode, doc = new BranchChunk([new LeafChunk([new Line("")])]), work, focused;
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loadMode();
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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, lastScrollLeft = 0, draggingText,
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overwrite = false, suppressEdits = 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, leaveInputAlone,
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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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// marked.
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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 = "", updateMaxLine = false, maxLineChanged = true;
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var tabCache = {};
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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", onScroll);
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connect(scrollbar, "scroll", onScroll);
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connect(scrollbar, "mousedown", function() {if (focused) setTimeout(focusInput, 0);});
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connect(scroller, "mousewheel", onMouseWheel);
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connect(scroller, "DOMMouseScroll", onMouseWheel);
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connect(window, "resize", function() {updateDisplay(true);});
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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.dragDrop) {
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connect(scroller, "dragstart", onDragStart);
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function drag_(e) {
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if (options.onDragEvent && options.onDragEvent(instance, addStop(e))) return;
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e_stop(e);
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}
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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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}
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connect(scroller, "paste", function(){focusInput(); fastPoll();});
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connect(input, "paste", fastPoll);
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connect(input, "cut", operation(function(){
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if (!options.readOnly) replaceSelection("");
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}));
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// Needed to handle Tab key in KHTML
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if (khtml) connect(code, "mouseup", function() {
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if (document.activeElement == input) input.blur();
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focusInput();
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});
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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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else onBlur();
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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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getValue: getValue,
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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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if (option == "lineNumbers" || option == "gutter" || option == "firstLineNumber" || option == "theme") {
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gutterChanged();
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updateDisplay(true);
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}
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},
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getOption: function(option) {return options[option];},
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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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}
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if (isLine(n)) indentLine(n, dir);
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}),
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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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},
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getHistory: function() {
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history.time = 0;
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return {done: history.done.concat([]), undone: history.undone.concat([])};
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},
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matchBrackets: operation(function(){matchBrackets(true);}),
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getTokenAt: operation(function(pos) {
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pos = clipPos(pos);
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return getLine(pos.line).getTokenAt(mode, getStateBefore(pos.line), pos.ch);
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}),
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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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},
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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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},
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charCoords: function(pos, mode) {
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pos = clipPos(pos);
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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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},
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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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},
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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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}
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(line.handlers || (line.handlers = [])).push(f);
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return line;
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},
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lineInfo: lineInfo,
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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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code.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(code.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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}
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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 = code.clientWidth - node.offsetWidth;
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node.style.right = "0px";
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} else {
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if (horiz == "left") left = 0;
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else if (horiz == "middle") left = (code.clientWidth - node.offsetWidth) / 2;
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node.style.left = (left + paddingLeft()) + "px";
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}
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if (scroll)
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scrollIntoView(left, top, left + node.offsetWidth, top + node.offsetHeight);
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},
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lineCount: function() {return doc.size;},
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clipPos: clipPos,
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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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},
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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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}),
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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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}),
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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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}),
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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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}),
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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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|
if(overwrite){
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|
|
overwrite = false;
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|
|
cursor.className = cursor.className.replace(" CodeMirror-overwrite", "");
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|
} else {
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|
|
overwrite = true;
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|
|
cursor.className += " CodeMirror-overwrite";
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|
}
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|
|
},
|
|
|
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|
|
posFromIndex: function(off) {
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|
|
var lineNo = 0, ch;
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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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|
off -= sz;
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|
++lineNo;
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|
|
});
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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;
|
|
|
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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|
|
});
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|
|
return index;
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|
|
},
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|
|
scrollTo: function(x, y) {
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|
|
if (x != null) scroller.scrollLeft = x;
|
|
|
if (y != null) scrollbar.scrollTop = y;
|
|
|
updateDisplay([]);
|
|
|
},
|
|
|
getScrollInfo: function() {
|
|
|
return {x: scroller.scrollLeft, y: scrollbar.scrollTop,
|
|
|
height: scrollbar.scrollHeight, width: scroller.scrollWidth};
|
|
|
},
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|
|
setSize: function(width, height) {
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|
|
function interpret(val) {
|
|
|
val = String(val);
|
|
|
return /^\d+$/.test(val) ? val + "px" : val;
|
|
|
}
|
|
|
if (width != null) wrapper.style.width = interpret(width);
|
|
|
if (height != null) scroller.style.height = interpret(height);
|
|
|
},
|
|
|
|
|
|
operation: function(f){return operation(f)();},
|
|
|
compoundChange: function(f){return compoundChange(f);},
|
|
|
refresh: function(){
|
|
|
updateDisplay(true, null, lastScrollTop);
|
|
|
if (scrollbar.scrollHeight > lastScrollTop)
|
|
|
scrollbar.scrollTop = lastScrollTop;
|
|
|
},
|
|
|
getInputField: function(){return input;},
|
|
|
getWrapperElement: function(){return wrapper;},
|
|
|
getScrollerElement: function(){return scroller;},
|
|
|
getGutterElement: function(){return gutter;}
|
|
|
};
|
|
|
|
|
|
function getLine(n) { return getLineAt(doc, n); }
|
|
|
function updateLineHeight(line, height) {
|
|
|
gutterDirty = true;
|
|
|
var diff = height - line.height;
|
|
|
for (var n = line; n; n = n.parent) n.height += diff;
|
|
|
}
|
|
|
|
|
|
function setValue(code) {
|
|
|
var top = {line: 0, ch: 0};
|
|
|
updateLines(top, {line: doc.size - 1, ch: getLine(doc.size-1).text.length},
|
|
|
splitLines(code), top, top);
|
|
|
updateInput = true;
|
|
|
}
|
|
|
function getValue(lineSep) {
|
|
|
var text = [];
|
|
|
doc.iter(0, doc.size, function(line) { text.push(line.text); });
|
|
|
return text.join(lineSep || "\n");
|
|
|
}
|
|
|
|
|
|
function onScroll(e) {
|
|
|
if (scroller.scrollTop) {
|
|
|
scrollbar.scrollTop += scroller.scrollTop;
|
|
|
scroller.scrollTop = 0;
|
|
|
}
|
|
|
if (lastScrollTop != scrollbar.scrollTop || lastScrollLeft != scroller.scrollLeft) {
|
|
|
lastScrollTop = scrollbar.scrollTop;
|
|
|
lastScrollLeft = scroller.scrollLeft;
|
|
|
updateDisplay([]);
|
|
|
if (options.fixedGutter) gutter.style.left = scroller.scrollLeft + "px";
|
|
|
if (options.onScroll) options.onScroll(instance);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
function onMouseDown(e) {
|
|
|
setShift(e_prop(e, "shiftKey"));
|
|
|
// Check whether this is a click in a widget
|
|
|
for (var n = e_target(e); n != wrapper; n = n.parentNode)
|
|
|
if (n.parentNode == code && n != mover) return;
|
|
|
|
|
|
// See if this is a click in the gutter
|
|
|
for (var n = e_target(e); n != wrapper; n = n.parentNode)
|
|
|
if (n.parentNode == gutterText) {
|
|
|
if (options.onGutterClick)
|
|
|
options.onGutterClick(instance, indexOf(gutterText.childNodes, n) + showingFrom, e);
|
|
|
return e_preventDefault(e);
|
|
|
}
|
|
|
|
|
|
var start = posFromMouse(e);
|
|
|
|
|
|
switch (e_button(e)) {
|
|
|
case 3:
|
|
|
if (gecko) onContextMenu(e);
|
|
|
return;
|
|
|
case 2:
|
|
|
if (start) setCursor(start.line, start.ch, true);
|
|
|
setTimeout(focusInput, 20);
|
|
|
e_preventDefault(e);
|
|
|
return;
|
|
|
}
|
|
|
// For button 1, if it was clicked inside the editor
|
|
|
// (posFromMouse returning non-null), we have to adjust the
|
|
|
// selection.
|
|
|
if (!start) {if (e_target(e) == scroller) e_preventDefault(e); return;}
|
|
|
|
|
|
if (!focused) onFocus();
|
|
|
|
|
|
var now = +new Date, type = "single";
|
|
|
if (lastDoubleClick && lastDoubleClick.time > now - 400 && posEq(lastDoubleClick.pos, start)) {
|
|
|
type = "triple";
|
|
|
e_preventDefault(e);
|
|
|
setTimeout(focusInput, 20);
|
|
|
selectLine(start.line);
|
|
|
} else if (lastClick && lastClick.time > now - 400 && posEq(lastClick.pos, start)) {
|
|
|
type = "double";
|
|
|
lastDoubleClick = {time: now, pos: start};
|
|
|
e_preventDefault(e);
|
|
|
var word = findWordAt(start);
|
|
|
setSelectionUser(word.from, word.to);
|
|
|
} else { lastClick = {time: now, pos: start}; }
|
|
|
|
|
|
var last = start, going;
|
|
|
if (options.dragDrop && dragAndDrop && !options.readOnly && !posEq(sel.from, sel.to) &&
|
|
|
!posLess(start, sel.from) && !posLess(sel.to, start) && type == "single") {
|
|
|
// Let the drag handler handle this.
|
|
|
if (webkit) scroller.draggable = true;
|
|
|
function dragEnd(e2) {
|
|
|
if (webkit) scroller.draggable = false;
|
|
|
draggingText = false;
|
|
|
up(); drop();
|
|
|
if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) {
|
|
|
e_preventDefault(e2);
|
|
|
setCursor(start.line, start.ch, true);
|
|
|
focusInput();
|
|
|
}
|
|
|
}
|
|
|
var up = connect(document, "mouseup", operation(dragEnd), true);
|
|
|
var drop = connect(scroller, "drop", operation(dragEnd), true);
|
|
|
draggingText = true;
|
|
|
// IE's approach to draggable
|
|
|
if (scroller.dragDrop) scroller.dragDrop();
|
|
|
return;
|
|
|
}
|
|
|
e_preventDefault(e);
|
|
|
if (type == "single") setCursor(start.line, start.ch, true);
|
|
|
|
|
|
var startstart = sel.from, startend = sel.to;
|
|
|
|
|
|
function doSelect(cur) {
|
|
|
if (type == "single") {
|
|
|
setSelectionUser(start, cur);
|
|
|
} else if (type == "double") {
|
|
|
var word = findWordAt(cur);
|
|
|
if (posLess(cur, startstart)) setSelectionUser(word.from, startend);
|
|
|
else setSelectionUser(startstart, word.to);
|
|
|
} else if (type == "triple") {
|
|
|
if (posLess(cur, startstart)) setSelectionUser(startend, clipPos({line: cur.line, ch: 0}));
|
|
|
else setSelectionUser(startstart, clipPos({line: cur.line + 1, ch: 0}));
|
|
|
}
|
|
|
}
|
|
|
|
|
|
function extend(e) {
|
|
|
var cur = posFromMouse(e, true);
|
|
|
if (cur && !posEq(cur, last)) {
|
|
|
if (!focused) onFocus();
|
|
|
last = cur;
|
|
|
doSelect(cur);
|
|
|
updateInput = false;
|
|
|
var visible = visibleLines();
|
|
|
if (cur.line >= visible.to || cur.line < visible.from)
|
|
|
going = setTimeout(operation(function(){extend(e);}), 150);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
function done(e) {
|
|
|
clearTimeout(going);
|
|
|
var cur = posFromMouse(e);
|
|
|
if (cur) doSelect(cur);
|
|
|
e_preventDefault(e);
|
|
|
focusInput();
|
|
|
updateInput = true;
|
|
|
move(); up();
|
|
|
}
|
|
|
var move = connect(document, "mousemove", operation(function(e) {
|
|
|
clearTimeout(going);
|
|
|
e_preventDefault(e);
|
|
|
if (!ie && !e_button(e)) done(e);
|
|
|
else extend(e);
|
|
|
}), true);
|
|
|
var up = connect(document, "mouseup", operation(done), true);
|
|
|
}
|
|
|
function onDoubleClick(e) {
|
|
|
for (var n = e_target(e); n != wrapper; n = n.parentNode)
|
|
|
if (n.parentNode == gutterText) return e_preventDefault(e);
|
|
|
e_preventDefault(e);
|
|
|
}
|
|
|
function onDrop(e) {
|
|
|
if (options.onDragEvent && options.onDragEvent(instance, addStop(e))) return;
|
|
|
e.preventDefault();
|
|
|
var pos = posFromMouse(e, true), files = e.dataTransfer.files;
|
|
|
if (!pos || options.readOnly) return;
|
|
|
if (files && files.length && window.FileReader && window.File) {
|
|
|
function loadFile(file, i) {
|
|
|
var reader = new FileReader;
|
|
|
reader.onload = function() {
|
|
|
text[i] = reader.result;
|
|
|
if (++read == n) {
|
|
|
pos = clipPos(pos);
|
|
|
operation(function() {
|
|
|
var end = replaceRange(text.join(""), pos, pos);
|
|
|
setSelectionUser(pos, end);
|
|
|
})();
|
|
|
}
|
|
|
};
|
|
|
reader.readAsText(file);
|
|
|
}
|
|
|
var n = files.length, text = Array(n), read = 0;
|
|
|
for (var i = 0; i < n; ++i) loadFile(files[i], i);
|
|
|
} else {
|
|
|
// Don't do a replace if the drop happened inside of the selected text.
|
|
|
if (draggingText && !(posLess(pos, sel.from) || posLess(sel.to, pos))) return;
|
|
|
try {
|
|
|
var text = e.dataTransfer.getData("Text");
|
|
|
if (text) {
|
|
|
compoundChange(function() {
|
|
|
var curFrom = sel.from, curTo = sel.to;
|
|
|
setSelectionUser(pos, pos);
|
|
|
if (draggingText) replaceRange("", curFrom, curTo);
|
|
|
replaceSelection(text);
|
|
|
focusInput();
|
|
|
});
|
|
|
}
|
|
|
}
|
|
|
catch(e){}
|
|
|
}
|
|
|
}
|
|
|
function onDragStart(e) {
|
|
|
var txt = getSelection();
|
|
|
e.dataTransfer.setData("Text", txt);
|
|
|
|
|
|
// Use dummy image instead of default browsers image.
|
|
|
if (gecko || chrome || opera) {
|
|
|
var img = document.createElement('img');
|
|
|
img.scr = 'data:image/gif;base64,R0lGODdhAgACAIAAAAAAAP///ywAAAAAAgACAAACAoRRADs='; //1x1 image
|
|
|
e.dataTransfer.setDragImage(img, 0, 0);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
function doHandleBinding(bound, dropShift) {
|
|
|
if (typeof bound == "string") {
|
|
|
bound = commands[bound];
|
|
|
if (!bound) return false;
|
|
|
}
|
|
|
var prevShift = shiftSelecting;
|
|
|
try {
|
|
|
if (options.readOnly) suppressEdits = true;
|
|
|
if (dropShift) shiftSelecting = null;
|
|
|
bound(instance);
|
|
|
} catch(e) {
|
|
|
if (e != Pass) throw e;
|
|
|
return false;
|
|
|
} finally {
|
|
|
shiftSelecting = prevShift;
|
|
|
suppressEdits = false;
|
|
|
}
|
|
|
return true;
|
|
|
}
|
|
|
function handleKeyBinding(e) {
|
|
|
// Handle auto keymap transitions
|
|
|
var startMap = getKeyMap(options.keyMap), next = startMap.auto;
|
|
|
clearTimeout(maybeTransition);
|
|
|
if (next && !isModifierKey(e)) maybeTransition = setTimeout(function() {
|
|
|
if (getKeyMap(options.keyMap) == startMap) {
|
|
|
options.keyMap = (next.call ? next.call(null, instance) : next);
|
|
|
}
|
|
|
}, 50);
|
|
|
|
|
|
var name = keyNames[e_prop(e, "keyCode")], handled = false;
|
|
|
if (name == null || e.altGraphKey) return false;
|
|
|
if (e_prop(e, "altKey")) name = "Alt-" + name;
|
|
|
if (e_prop(e, "ctrlKey")) name = "Ctrl-" + name;
|
|
|
if (e_prop(e, "metaKey")) name = "Cmd-" + name;
|
|
|
|
|
|
var stopped = false;
|
|
|
function stop() { stopped = true; }
|
|
|
|
|
|
if (e_prop(e, "shiftKey")) {
|
|
|
handled = lookupKey("Shift-" + name, options.extraKeys, options.keyMap,
|
|
|
function(b) {return doHandleBinding(b, true);}, stop)
|
|
|
|| lookupKey(name, options.extraKeys, options.keyMap, function(b) {
|
|
|
if (typeof b == "string" && /^go[A-Z]/.test(b)) return doHandleBinding(b);
|
|
|
}, stop);
|
|
|
} else {
|
|
|
handled = lookupKey(name, options.extraKeys, options.keyMap, doHandleBinding, stop);
|
|
|
}
|
|
|
if (stopped) handled = false;
|
|
|
if (handled) {
|
|
|
e_preventDefault(e);
|
|
|
restartBlink();
|
|
|
if (ie) { e.oldKeyCode = e.keyCode; e.keyCode = 0; }
|
|
|
}
|
|
|
return handled;
|
|
|
}
|
|
|
function handleCharBinding(e, ch) {
|
|
|
var handled = lookupKey("'" + ch + "'", options.extraKeys,
|
|
|
options.keyMap, function(b) { return doHandleBinding(b, true); });
|
|
|
if (handled) {
|
|
|
e_preventDefault(e);
|
|
|
restartBlink();
|
|
|
}
|
|
|
return handled;
|
|
|
}
|
|
|
|
|
|
var lastStoppedKey = null, maybeTransition;
|
|
|
function onKeyDown(e) {
|
|
|
if (!focused) onFocus();
|
|
|
if (ie && e.keyCode == 27) { e.returnValue = false; }
|
|
|
if (pollingFast) { if (readInput()) pollingFast = false; }
|
|
|
if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return;
|
|
|
var code = e_prop(e, "keyCode");
|
|
|
// IE does strange things with escape.
|
|
|
setShift(code == 16 || e_prop(e, "shiftKey"));
|
|
|
// First give onKeyEvent option a chance to handle this.
|
|
|
var handled = handleKeyBinding(e);
|
|
|
if (opera) {
|
|
|
lastStoppedKey = handled ? code : null;
|
|
|
// Opera has no cut event... we try to at least catch the key combo
|
|
|
if (!handled && code == 88 && e_prop(e, mac ? "metaKey" : "ctrlKey"))
|
|
|
replaceSelection("");
|
|
|
}
|
|
|
}
|
|
|
function onKeyPress(e) {
|
|
|
if (pollingFast) readInput();
|
|
|
if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return;
|
|
|
var keyCode = e_prop(e, "keyCode"), charCode = e_prop(e, "charCode");
|
|
|
if (opera && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;}
|
|
|
if (((opera && (!e.which || e.which < 10)) || khtml) && handleKeyBinding(e)) return;
|
|
|
var ch = String.fromCharCode(charCode == null ? keyCode : charCode);
|
|
|
if (options.electricChars && mode.electricChars && options.smartIndent && !options.readOnly) {
|
|
|
if (mode.electricChars.indexOf(ch) > -1)
|
|
|
setTimeout(operation(function() {indentLine(sel.to.line, "smart");}), 75);
|
|
|
}
|
|
|
if (handleCharBinding(e, ch)) return;
|
|
|
fastPoll();
|
|
|
}
|
|
|
function onKeyUp(e) {
|
|
|
if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return;
|
|
|
if (e_prop(e, "keyCode") == 16) shiftSelecting = null;
|
|
|
}
|
|
|
|
|
|
function onFocus() {
|
|
|
if (options.readOnly == "nocursor") return;
|
|
|
if (!focused) {
|
|
|
if (options.onFocus) options.onFocus(instance);
|
|
|
focused = true;
|
|
|
if (scroller.className.search(/\bCodeMirror-focused\b/) == -1)
|
|
|
scroller.className += " CodeMirror-focused";
|
|
|
if (!leaveInputAlone) resetInput(true);
|
|
|
}
|
|
|
slowPoll();
|
|
|
restartBlink();
|
|
|
}
|
|
|
function onBlur() {
|
|
|
if (focused) {
|
|
|
if (options.onBlur) options.onBlur(instance);
|
|
|
focused = false;
|
|
|
if (bracketHighlighted)
|
|
|
operation(function(){
|
|
|
if (bracketHighlighted) { bracketHighlighted(); bracketHighlighted = null; }
|
|
|
})();
|
|
|
scroller.className = scroller.className.replace(" CodeMirror-focused", "");
|
|
|
}
|
|
|
clearInterval(blinker);
|
|
|
setTimeout(function() {if (!focused) shiftSelecting = null;}, 150);
|
|
|
}
|
|
|
|
|
|
function chopDelta(delta) {
|
|
|
// Make sure we always scroll a little bit for any nonzero delta.
|
|
|
if (delta > 0.0 && delta < 1.0) return 1;
|
|
|
else if (delta > -1.0 && delta < 0.0) return -1;
|
|
|
else return Math.round(delta);
|
|
|
}
|
|
|
|
|
|
function onMouseWheel(e) {
|
|
|
var deltaX = 0, deltaY = 0;
|
|
|
if (e.type == "DOMMouseScroll") { // Firefox
|
|
|
var delta = -e.detail * 8.0;
|
|
|
if (e.axis == e.HORIZONTAL_AXIS) deltaX = delta;
|
|
|
else if (e.axis == e.VERTICAL_AXIS) deltaY = delta;
|
|
|
} else if (e.wheelDeltaX !== undefined && e.wheelDeltaY !== undefined) { // WebKit
|
|
|
deltaX = e.wheelDeltaX / 3.0;
|
|
|
deltaY = e.wheelDeltaY / 3.0;
|
|
|
} else if (e.wheelDelta !== undefined) { // IE or Opera
|
|
|
deltaY = e.wheelDelta / 3.0;
|
|
|
}
|
|
|
|
|
|
var scrolled = false;
|
|
|
deltaX = chopDelta(deltaX);
|
|
|
deltaY = chopDelta(deltaY);
|
|
|
if ((deltaX > 0 && scroller.scrollLeft > 0) ||
|
|
|
(deltaX < 0 && scroller.scrollLeft + scroller.clientWidth < scroller.scrollWidth)) {
|
|
|
scroller.scrollLeft -= deltaX;
|
|
|
scrolled = true;
|
|
|
}
|
|
|
if ((deltaY > 0 && scrollbar.scrollTop > 0) ||
|
|
|
(deltaY < 0 && scrollbar.scrollTop + scrollbar.clientHeight < scrollbar.scrollHeight)) {
|
|
|
scrollbar.scrollTop -= deltaY;
|
|
|
scrolled = true;
|
|
|
}
|
|
|
if (scrolled) e_stop(e);
|
|
|
}
|
|
|
|
|
|
// Replace the range from from to to by the strings in newText.
|
|
|
// Afterwards, set the selection to selFrom, selTo.
|
|
|
function updateLines(from, to, newText, selFrom, selTo) {
|
|
|
if (suppressEdits) return;
|
|
|
if (history) {
|
|
|
var old = [];
|
|
|
doc.iter(from.line, to.line + 1, function(line) { old.push(line.text); });
|
|
|
history.addChange(from.line, newText.length, old);
|
|
|
while (history.done.length > options.undoDepth) history.done.shift();
|
|
|
}
|
|
|
updateLinesNoUndo(from, to, newText, selFrom, selTo);
|
|
|
}
|
|
|
function unredoHelper(from, to) {
|
|
|
if (!from.length) return;
|
|
|
var set = from.pop(), out = [];
|
|
|
for (var i = set.length - 1; i >= 0; i -= 1) {
|
|
|
var change = set[i];
|
|
|
var replaced = [], end = change.start + change.added;
|
|
|
doc.iter(change.start, end, function(line) { replaced.push(line.text); });
|
|
|
out.push({start: change.start, added: change.old.length, old: replaced});
|
|
|
var pos = {line: change.start + change.old.length - 1,
|
|
|
ch: editEnd(replaced[replaced.length-1], change.old[change.old.length-1])};
|
|
|
updateLinesNoUndo({line: change.start, ch: 0}, {line: end - 1, ch: getLine(end-1).text.length}, change.old, pos, pos);
|
|
|
}
|
|
|
updateInput = true;
|
|
|
to.push(out);
|
|
|
}
|
|
|
function undo() {unredoHelper(history.done, history.undone);}
|
|
|
function redo() {unredoHelper(history.undone, history.done);}
|
|
|
|
|
|
function updateLinesNoUndo(from, to, newText, selFrom, selTo) {
|
|
|
if (suppressEdits) return;
|
|
|
var recomputeMaxLength = false, maxLineLength = maxLine.length;
|
|
|
if (!options.lineWrapping)
|
|
|
doc.iter(from.line, to.line + 1, function(line) {
|
|
|
if (!line.hidden && line.text.length == maxLineLength) {recomputeMaxLength = true; return true;}
|
|
|
});
|
|
|
if (from.line != to.line || newText.length > 1) gutterDirty = true;
|
|
|
|
|
|
var nlines = to.line - from.line, firstLine = getLine(from.line), lastLine = getLine(to.line);
|
|
|
// First adjust the line structure, taking some care to leave highlighting intact.
|
|
|
if (from.ch == 0 && to.ch == 0 && newText[newText.length - 1] == "") {
|
|
|
// This is a whole-line replace. Treated specially to make
|
|
|
// sure line objects move the way they are supposed to.
|
|
|
var added = [], prevLine = null;
|
|
|
if (from.line) {
|
|
|
prevLine = getLine(from.line - 1);
|
|
|
prevLine.fixMarkEnds(lastLine);
|
|
|
} else lastLine.fixMarkStarts();
|
|
|
for (var i = 0, e = newText.length - 1; i < e; ++i)
|
|
|
added.push(Line.inheritMarks(newText[i], prevLine));
|
|
|
if (nlines) doc.remove(from.line, nlines, callbacks);
|
|
|
if (added.length) doc.insert(from.line, added);
|
|
|
} else if (firstLine == lastLine) {
|
|
|
if (newText.length == 1)
|
|
|
firstLine.replace(from.ch, to.ch, newText[0]);
|
|
|
else {
|
|
|
lastLine = firstLine.split(to.ch, newText[newText.length-1]);
|
|
|
firstLine.replace(from.ch, null, newText[0]);
|
|
|
firstLine.fixMarkEnds(lastLine);
|
|
|
var added = [];
|
|
|
for (var i = 1, e = newText.length - 1; i < e; ++i)
|
|
|
added.push(Line.inheritMarks(newText[i], firstLine));
|
|
|
added.push(lastLine);
|
|
|
doc.insert(from.line + 1, added);
|
|
|
}
|
|
|
} else if (newText.length == 1) {
|
|
|
firstLine.replace(from.ch, null, newText[0]);
|
|
|
lastLine.replace(null, to.ch, "");
|
|
|
firstLine.append(lastLine);
|
|
|
doc.remove(from.line + 1, nlines, callbacks);
|
|
|
} else {
|
|
|
var added = [];
|
|
|
firstLine.replace(from.ch, null, newText[0]);
|
|
|
lastLine.replace(null, to.ch, newText[newText.length-1]);
|
|
|
firstLine.fixMarkEnds(lastLine);
|
|
|
for (var i = 1, e = newText.length - 1; i < e; ++i)
|
|
|
added.push(Line.inheritMarks(newText[i], firstLine));
|
|
|
if (nlines > 1) doc.remove(from.line + 1, nlines - 1, callbacks);
|
|
|
doc.insert(from.line + 1, added);
|
|
|
}
|
|
|
if (options.lineWrapping) {
|
|
|
var perLine = Math.max(5, scroller.clientWidth / charWidth() - 3);
|
|
|
doc.iter(from.line, from.line + newText.length, function(line) {
|
|
|
if (line.hidden) return;
|
|
|
var guess = Math.ceil(line.text.length / perLine) || 1;
|
|
|
if (guess != line.height) updateLineHeight(line, guess);
|
|
|
});
|
|
|
} else {
|
|
|
doc.iter(from.line, from.line + newText.length, function(line) {
|
|
|
var l = line.text;
|
|
|
if (!line.hidden && l.length > maxLineLength) {
|
|
|
maxLine = l; maxLineLength = l.length; maxLineChanged = true;
|
|
|
recomputeMaxLength = false;
|
|
|
}
|
|
|
});
|
|
|
if (recomputeMaxLength) updateMaxLine = true;
|
|
|
}
|
|
|
|
|
|
// Add these lines to the work array, so that they will be
|
|
|
// highlighted. Adjust work lines if lines were added/removed.
|
|
|
var newWork = [], lendiff = newText.length - nlines - 1;
|
|
|
for (var i = 0, l = work.length; i < l; ++i) {
|
|
|
var task = work[i];
|
|
|
if (task < from.line) newWork.push(task);
|
|
|
else if (task > to.line) newWork.push(task + lendiff);
|
|
|
}
|
|
|
var hlEnd = from.line + Math.min(newText.length, 500);
|
|
|
highlightLines(from.line, hlEnd);
|
|
|
newWork.push(hlEnd);
|
|
|
work = newWork;
|
|
|
startWorker(100);
|
|
|
// Remember that these lines changed, for updating the display
|
|
|
changes.push({from: from.line, to: to.line + 1, diff: lendiff});
|
|
|
var changeObj = {from: from, to: to, text: newText};
|
|
|
if (textChanged) {
|
|
|
for (var cur = textChanged; cur.next; cur = cur.next) {}
|
|
|
cur.next = changeObj;
|
|
|
} else textChanged = changeObj;
|
|
|
|
|
|
// Update the selection
|
|
|
function updateLine(n) {return n <= Math.min(to.line, to.line + lendiff) ? n : n + lendiff;}
|
|
|
setSelection(clipPos(selFrom), clipPos(selTo),
|
|
|
updateLine(sel.from.line), updateLine(sel.to.line));
|
|
|
}
|
|
|
|
|
|
function needsScrollbar() {
|
|
|
var realHeight = doc.height * textHeight() + 2 * paddingTop();
|
|
|
return realHeight - 1 > scroller.offsetHeight ? realHeight : false;
|
|
|
}
|
|
|
|
|
|
function updateVerticalScroll(scrollTop) {
|
|
|
var scrollHeight = needsScrollbar();
|
|
|
scrollbar.style.display = scrollHeight ? "block" : "none";
|
|
|
if (scrollHeight) {
|
|
|
scrollbarInner.style.height = scrollHeight + "px";
|
|
|
scrollbar.style.height = scroller.offsetHeight + "px";
|
|
|
if (scrollTop != null) scrollbar.scrollTop = scrollTop;
|
|
|
}
|
|
|
// Position the mover div to align with the current virtual scroll position
|
|
|
mover.style.top = (displayOffset * textHeight() - scrollbar.scrollTop) + "px";
|
|
|
}
|
|
|
|
|
|
// On Mac OS X Lion and up, detect whether the mouse is plugged in by measuring
|
|
|
// the width of a div with a scrollbar in it. If the width is <= 1, then
|
|
|
// the mouse isn't plugged in and scrollbars should overlap the content.
|
|
|
function overlapScrollbars() {
|
|
|
var tmpSb = document.createElement('div'),
|
|
|
tmpSbInner = document.createElement('div');
|
|
|
tmpSb.className = "CodeMirror-scrollbar";
|
|
|
tmpSb.style.cssText = "position: absolute; left: -9999px; height: 100px;";
|
|
|
tmpSbInner.className = "CodeMirror-scrollbar-inner";
|
|
|
tmpSbInner.style.height = "200px";
|
|
|
tmpSb.appendChild(tmpSbInner);
|
|
|
|
|
|
document.body.appendChild(tmpSb);
|
|
|
var result = (tmpSb.offsetWidth <= 1);
|
|
|
document.body.removeChild(tmpSb);
|
|
|
return result;
|
|
|
}
|
|
|
|
|
|
function computeMaxLength() {
|
|
|
var maxLineLength = 0;
|
|
|
maxLine = ""; maxLineChanged = true;
|
|
|
doc.iter(0, doc.size, function(line) {
|
|
|
var l = line.text;
|
|
|
if (!line.hidden && l.length > maxLineLength) {
|
|
|
maxLineLength = l.length; maxLine = l;
|
|
|
}
|
|
|
});
|
|
|
updateMaxLine = false;
|
|
|
}
|
|
|
|
|
|
function replaceRange(code, from, to) {
|
|
|
from = clipPos(from);
|
|
|
if (!to) to = from; else to = clipPos(to);
|
|
|
code = splitLines(code);
|
|
|
function adjustPos(pos) {
|
|
|
if (posLess(pos, from)) return pos;
|
|
|
if (!posLess(to, pos)) return end;
|
|
|
var line = pos.line + code.length - (to.line - from.line) - 1;
|
|
|
var ch = pos.ch;
|
|
|
if (pos.line == to.line)
|
|
|
ch += code[code.length-1].length - (to.ch - (to.line == from.line ? from.ch : 0));
|
|
|
return {line: line, ch: ch};
|
|
|
}
|
|
|
var end;
|
|
|
replaceRange1(code, from, to, function(end1) {
|
|
|
end = end1;
|
|
|
return {from: adjustPos(sel.from), to: adjustPos(sel.to)};
|
|
|
});
|
|
|
return end;
|
|
|
}
|
|
|
function replaceSelection(code, collapse) {
|
|
|
replaceRange1(splitLines(code), sel.from, sel.to, function(end) {
|
|
|
if (collapse == "end") return {from: end, to: end};
|
|
|
else if (collapse == "start") return {from: sel.from, to: sel.from};
|
|
|
else return {from: sel.from, to: end};
|
|
|
});
|
|
|
}
|
|
|
function replaceRange1(code, from, to, computeSel) {
|
|
|
var endch = code.length == 1 ? code[0].length + from.ch : code[code.length-1].length;
|
|
|
var newSel = computeSel({line: from.line + code.length - 1, ch: endch});
|
|
|
updateLines(from, to, code, newSel.from, newSel.to);
|
|
|
}
|
|
|
|
|
|
function getRange(from, to, lineSep) {
|
|
|
var l1 = from.line, l2 = to.line;
|
|
|
if (l1 == l2) return getLine(l1).text.slice(from.ch, to.ch);
|
|
|
var code = [getLine(l1).text.slice(from.ch)];
|
|
|
doc.iter(l1 + 1, l2, function(line) { code.push(line.text); });
|
|
|
code.push(getLine(l2).text.slice(0, to.ch));
|
|
|
return code.join(lineSep || "\n");
|
|
|
}
|
|
|
function getSelection(lineSep) {
|
|
|
return getRange(sel.from, sel.to, lineSep);
|
|
|
}
|
|
|
|
|
|
var pollingFast = false; // Ensures slowPoll doesn't cancel fastPoll
|
|
|
function slowPoll() {
|
|
|
if (pollingFast) return;
|
|
|
poll.set(options.pollInterval, function() {
|
|
|
startOperation();
|
|
|
readInput();
|
|
|
if (focused) slowPoll();
|
|
|
endOperation();
|
|
|
});
|
|
|
}
|
|
|
function fastPoll() {
|
|
|
var missed = false;
|
|
|
pollingFast = true;
|
|
|
function p() {
|
|
|
startOperation();
|
|
|
var changed = readInput();
|
|
|
if (!changed && !missed) {missed = true; poll.set(60, p);}
|
|
|
else {pollingFast = false; slowPoll();}
|
|
|
endOperation();
|
|
|
}
|
|
|
poll.set(20, p);
|
|
|
}
|
|
|
|
|
|
// Previnput is a hack to work with IME. If we reset the textarea
|
|
|
// on every change, that breaks IME. So we look for changes
|
|
|
// compared to the previous content instead. (Modern browsers have
|
|
|
// events that indicate IME taking place, but these are not widely
|
|
|
// supported or compatible enough yet to rely on.)
|
|
|
var prevInput = "";
|
|
|
function readInput() {
|
|
|
if (leaveInputAlone || !focused || hasSelection(input) || options.readOnly) return false;
|
|
|
var text = input.value;
|
|
|
if (text == prevInput) return false;
|
|
|
shiftSelecting = null;
|
|
|
var same = 0, l = Math.min(prevInput.length, text.length);
|
|
|
while (same < l && prevInput[same] == text[same]) ++same;
|
|
|
if (same < prevInput.length)
|
|
|
sel.from = {line: sel.from.line, ch: sel.from.ch - (prevInput.length - same)};
|
|
|
else if (overwrite && posEq(sel.from, sel.to))
|
|
|
sel.to = {line: sel.to.line, ch: Math.min(getLine(sel.to.line).text.length, sel.to.ch + (text.length - same))};
|
|
|
replaceSelection(text.slice(same), "end");
|
|
|
if (text.length > 1000) { input.value = prevInput = ""; }
|
|
|
else prevInput = text;
|
|
|
return true;
|
|
|
}
|
|
|
function resetInput(user) {
|
|
|
if (!posEq(sel.from, sel.to)) {
|
|
|
prevInput = "";
|
|
|
input.value = getSelection();
|
|
|
selectInput(input);
|
|
|
} else if (user) prevInput = input.value = "";
|
|
|
}
|
|
|
|
|
|
function focusInput() {
|
|
|
if (options.readOnly != "nocursor") input.focus();
|
|
|
}
|
|
|
|
|
|
function scrollEditorIntoView() {
|
|
|
var rect = cursor.getBoundingClientRect();
|
|
|
// IE returns bogus coordinates when the instance sits inside of an iframe and the cursor is hidden
|
|
|
if (ie && rect.top == rect.bottom) return;
|
|
|
var winH = window.innerHeight || Math.max(document.body.offsetHeight, document.documentElement.offsetHeight);
|
|
|
if (rect.top < 0 || rect.bottom > winH) scrollCursorIntoView();
|
|
|
}
|
|
|
function scrollCursorIntoView() {
|
|
|
var coords = calculateCursorCoords();
|
|
|
return scrollIntoView(coords.x, coords.y, coords.x, coords.yBot);
|
|
|
}
|
|
|
function calculateCursorCoords() {
|
|
|
var cursor = localCoords(sel.inverted ? sel.from : sel.to);
|
|
|
var x = options.lineWrapping ? Math.min(cursor.x, lineSpace.offsetWidth) : cursor.x;
|
|
|
return {x: x, y: cursor.y, yBot: cursor.yBot};
|
|
|
}
|
|
|
function scrollIntoView(x1, y1, x2, y2) {
|
|
|
var scrollPos = calculateScrollPos(x1, y1, x2, y2), scrolled = false;
|
|
|
if (scrollPos.scrollLeft != null) {scroller.scrollLeft = scrollPos.scrollLeft; scrolled = true;}
|
|
|
if (scrollPos.scrollTop != null) {scrollbar.scrollTop = scrollPos.scrollTop; scrolled = true;}
|
|
|
if (scrolled && options.onScroll) options.onScroll(instance);
|
|
|
}
|
|
|
function calculateScrollPos(x1, y1, x2, y2) {
|
|
|
var pl = paddingLeft(), pt = paddingTop();
|
|
|
y1 += pt; y2 += pt; x1 += pl; x2 += pl;
|
|
|
var screen = scroller.clientHeight, screentop = scrollbar.scrollTop, result = {};
|
|
|
var docBottom = scroller.scrollHeight;
|
|
|
var atTop = y1 < pt + 10, atBottom = y2 + pt > docBottom - 10;;
|
|
|
if (y1 < screentop) result.scrollTop = atTop ? 0 : Math.max(0, y1);
|
|
|
else if (y2 > screentop + screen) result.scrollTop = (atBottom ? docBottom : y2) - screen;
|
|
|
|
|
|
var screenw = scroller.clientWidth, screenleft = scroller.scrollLeft;
|
|
|
var gutterw = options.fixedGutter ? gutter.clientWidth : 0;
|
|
|
var atLeft = x1 < gutterw + pl + 10;
|
|
|
if (x1 < screenleft + gutterw || atLeft) {
|
|
|
if (atLeft) x1 = 0;
|
|
|
result.scrollLeft = Math.max(0, x1 - 10 - gutterw);
|
|
|
} else if (x2 > screenw + screenleft - 3) {
|
|
|
result.scrollLeft = x2 + 10 - screenw;
|
|
|
}
|
|
|
return result;
|
|
|
}
|
|
|
|
|
|
function visibleLines(scrollTop) {
|
|
|
var lh = textHeight(), top = (scrollTop != null ? scrollTop : scrollbar.scrollTop) - paddingTop();
|
|
|
var fromHeight = Math.max(0, Math.floor(top / lh));
|
|
|
var toHeight = Math.ceil((top + scroller.clientHeight) / lh);
|
|
|
return {from: lineAtHeight(doc, fromHeight),
|
|
|
to: lineAtHeight(doc, toHeight)};
|
|
|
}
|
|
|
// Uses a set of changes plus the current scroll position to
|
|
|
// determine which DOM updates have to be made, and makes the
|
|
|
// updates.
|
|
|
function updateDisplay(changes, suppressCallback, scrollTop) {
|
|
|
if (!scroller.clientWidth) {
|
|
|
showingFrom = showingTo = displayOffset = 0;
|
|
|
return;
|
|
|
}
|
|
|
// Compute the new visible window
|
|
|
// If scrollTop is specified, use that to determine which lines
|
|
|
// to render instead of the current scrollbar position.
|
|
|
var visible = visibleLines(scrollTop);
|
|
|
// Bail out if the visible area is already rendered and nothing changed.
|
|
|
if (changes !== true && changes.length == 0 && visible.from > showingFrom && visible.to < showingTo) {
|
|
|
updateVerticalScroll(scrollTop);
|
|
|
return;
|
|
|
}
|
|
|
var from = Math.max(visible.from - 100, 0), to = Math.min(doc.size, visible.to + 100);
|
|
|
if (showingFrom < from && from - showingFrom < 20) from = showingFrom;
|
|
|
if (showingTo > to && showingTo - to < 20) to = Math.min(doc.size, showingTo);
|
|
|
|
|
|
// Create a range of theoretically intact lines, and punch holes
|
|
|
// in that using the change info.
|
|
|
var intact = changes === true ? [] :
|
|
|
computeIntact([{from: showingFrom, to: showingTo, domStart: 0}], changes);
|
|
|
// Clip off the parts that won't be visible
|
|
|
var intactLines = 0;
|
|
|
for (var i = 0; i < intact.length; ++i) {
|
|
|
var range = intact[i];
|
|
|
if (range.from < from) {range.domStart += (from - range.from); range.from = from;}
|
|
|
if (range.to > to) range.to = to;
|
|
|
if (range.from >= range.to) intact.splice(i--, 1);
|
|
|
else intactLines += range.to - range.from;
|
|
|
}
|
|
|
if (intactLines == to - from && from == showingFrom && to == showingTo) {
|
|
|
updateVerticalScroll(scrollTop);
|
|
|
return;
|
|
|
}
|
|
|
intact.sort(function(a, b) {return a.domStart - b.domStart;});
|
|
|
|
|
|
var th = textHeight(), gutterDisplay = gutter.style.display;
|
|
|
lineDiv.style.display = "none";
|
|
|
patchDisplay(from, to, intact);
|
|
|
lineDiv.style.display = gutter.style.display = "";
|
|
|
|
|
|
var different = from != showingFrom || to != showingTo || lastSizeC != scroller.clientHeight + th;
|
|
|
// This is just a bogus formula that detects when the editor is
|
|
|
// resized or the font size changes.
|
|
|
if (different) lastSizeC = scroller.clientHeight + th;
|
|
|
showingFrom = from; showingTo = to;
|
|
|
displayOffset = heightAtLine(doc, from);
|
|
|
|
|
|
// Since this is all rather error prone, it is honoured with the
|
|
|
// only assertion in the whole file.
|
|
|
if (lineDiv.childNodes.length != showingTo - showingFrom)
|
|
|
throw new Error("BAD PATCH! " + JSON.stringify(intact) + " size=" + (showingTo - showingFrom) +
|
|
|
" nodes=" + lineDiv.childNodes.length);
|
|
|
|
|
|
function checkHeights() {
|
|
|
var curNode = lineDiv.firstChild, heightChanged = false;
|
|
|
doc.iter(showingFrom, showingTo, function(line) {
|
|
|
if (!line.hidden) {
|
|
|
var height = Math.round(curNode.offsetHeight / th) || 1;
|
|
|
if (line.height != height) {
|
|
|
updateLineHeight(line, height);
|
|
|
gutterDirty = heightChanged = true;
|
|
|
}
|
|
|
}
|
|
|
curNode = curNode.nextSibling;
|
|
|
});
|
|
|
return heightChanged;
|
|
|
}
|
|
|
|
|
|
if (options.lineWrapping) {
|
|
|
checkHeights();
|
|
|
var scrollHeight = needsScrollbar();
|
|
|
var shouldHaveScrollbar = scrollHeight ? "block" : "none";
|
|
|
if (scrollbar.style.display != shouldHaveScrollbar) {
|
|
|
scrollbar.style.display = shouldHaveScrollbar;
|
|
|
if (scrollHeight) scrollbarInner.style.height = scrollHeight + "px";
|
|
|
checkHeights();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
gutter.style.display = gutterDisplay;
|
|
|
if (different || gutterDirty) {
|
|
|
// If the gutter grew in size, re-check heights. If those changed, re-draw gutter.
|
|
|
updateGutter() && options.lineWrapping && checkHeights() && updateGutter();
|
|
|
}
|
|
|
updateVerticalScroll(scrollTop);
|
|
|
updateSelection();
|
|
|
if (!suppressCallback && options.onUpdate) options.onUpdate(instance);
|
|
|
return true;
|
|
|
}
|
|
|
|
|
|
function computeIntact(intact, changes) {
|
|
|
for (var i = 0, l = changes.length || 0; i < l; ++i) {
|
|
|
var change = changes[i], intact2 = [], diff = change.diff || 0;
|
|
|
for (var j = 0, l2 = intact.length; j < l2; ++j) {
|
|
|
var range = intact[j];
|
|
|
if (change.to <= range.from && change.diff)
|
|
|
intact2.push({from: range.from + diff, to: range.to + diff,
|
|
|
domStart: range.domStart});
|
|
|
else if (change.to <= range.from || change.from >= range.to)
|
|
|
intact2.push(range);
|
|
|
else {
|
|
|
if (change.from > range.from)
|
|
|
intact2.push({from: range.from, to: change.from, domStart: range.domStart});
|
|
|
if (change.to < range.to)
|
|
|
intact2.push({from: change.to + diff, to: range.to + diff,
|
|
|
domStart: range.domStart + (change.to - range.from)});
|
|
|
}
|
|
|
}
|
|
|
intact = intact2;
|
|
|
}
|
|
|
return intact;
|
|
|
}
|
|
|
|
|
|
function patchDisplay(from, to, intact) {
|
|
|
// The first pass removes the DOM nodes that aren't intact.
|
|
|
if (!intact.length) lineDiv.innerHTML = "";
|
|
|
else {
|
|
|
function killNode(node) {
|
|
|
var tmp = node.nextSibling;
|
|
|
node.parentNode.removeChild(node);
|
|
|
return tmp;
|
|
|
}
|
|
|
var domPos = 0, curNode = lineDiv.firstChild, n;
|
|
|
for (var i = 0; i < intact.length; ++i) {
|
|
|
var cur = intact[i];
|
|
|
while (cur.domStart > domPos) {curNode = killNode(curNode); domPos++;}
|
|
|
for (var j = 0, e = cur.to - cur.from; j < e; ++j) {curNode = curNode.nextSibling; domPos++;}
|
|
|
}
|
|
|
while (curNode) curNode = killNode(curNode);
|
|
|
}
|
|
|
// This pass fills in the lines that actually changed.
|
|
|
var nextIntact = intact.shift(), curNode = lineDiv.firstChild, j = from;
|
|
|
var scratch = document.createElement("div");
|
|
|
doc.iter(from, to, function(line) {
|
|
|
if (nextIntact && nextIntact.to == j) nextIntact = intact.shift();
|
|
|
if (!nextIntact || nextIntact.from > j) {
|
|
|
if (line.hidden) var html = scratch.innerHTML = "<pre></pre>";
|
|
|
else {
|
|
|
var html = '<pre' + (line.className ? ' class="' + line.className + '"' : '') + '>'
|
|
|
+ line.getHTML(makeTab) + '</pre>';
|
|
|
// Kludge to make sure the styled element lies behind the selection (by z-index)
|
|
|
if (line.bgClassName)
|
|
|
html = '<div style="position: relative"><pre class="' + line.bgClassName +
|
|
|
'" style="position: absolute; left: 0; right: 0; top: 0; bottom: 0; z-index: -2"> </pre>' + html + "</div>";
|
|
|
}
|
|
|
scratch.innerHTML = html;
|
|
|
lineDiv.insertBefore(scratch.firstChild, curNode);
|
|
|
} else {
|
|
|
curNode = curNode.nextSibling;
|
|
|
}
|
|
|
++j;
|
|
|
});
|
|
|
}
|
|
|
|
|
|
function updateGutter() {
|
|
|
if (!options.gutter && !options.lineNumbers) return;
|
|
|
var hText = mover.offsetHeight, hEditor = scroller.clientHeight;
|
|
|
gutter.style.height = (hText - hEditor < 2 ? hEditor : hText) + "px";
|
|
|
var html = [], i = showingFrom, normalNode;
|
|
|
doc.iter(showingFrom, Math.max(showingTo, showingFrom + 1), function(line) {
|
|
|
if (line.hidden) {
|
|
|
html.push("<pre></pre>");
|
|
|
} else {
|
|
|
var marker = line.gutterMarker;
|
|
|
var text = options.lineNumbers ? options.lineNumberFormatter(i + options.firstLineNumber) : null;
|
|
|
if (marker && marker.text)
|
|
|
text = marker.text.replace("%N%", text != null ? text : "");
|
|
|
else if (text == null)
|
|
|
text = "\u00a0";
|
|
|
html.push((marker && marker.style ? '<pre class="' + marker.style + '">' : "<pre>"), text);
|
|
|
for (var j = 1; j < line.height; ++j) html.push("<br/> ");
|
|
|
html.push("</pre>");
|
|
|
if (!marker) normalNode = i;
|
|
|
}
|
|
|
++i;
|
|
|
});
|
|
|
gutter.style.display = "none";
|
|
|
gutterText.innerHTML = html.join("");
|
|
|
// Make sure scrolling doesn't cause number gutter size to pop
|
|
|
if (normalNode != null && options.lineNumbers) {
|
|
|
var node = gutterText.childNodes[normalNode - showingFrom];
|
|
|
var minwidth = String(doc.size).length, val = eltText(node.firstChild), pad = "";
|
|
|
while (val.length + pad.length < minwidth) pad += "\u00a0";
|
|
|
if (pad) node.insertBefore(document.createTextNode(pad), node.firstChild);
|
|
|
}
|
|
|
gutter.style.display = "";
|
|
|
var resized = Math.abs((parseInt(lineSpace.style.marginLeft) || 0) - gutter.offsetWidth) > 2;
|
|
|
lineSpace.style.marginLeft = gutter.offsetWidth + "px";
|
|
|
gutterDirty = false;
|
|
|
return resized;
|
|
|
}
|
|
|
function updateSelection() {
|
|
|
var collapsed = posEq(sel.from, sel.to);
|
|
|
var fromPos = localCoords(sel.from, true);
|
|
|
var toPos = collapsed ? fromPos : localCoords(sel.to, true);
|
|
|
var headPos = sel.inverted ? fromPos : toPos, th = textHeight();
|
|
|
var wrapOff = eltOffset(wrapper), lineOff = eltOffset(lineDiv);
|
|
|
inputDiv.style.top = Math.max(0, Math.min(scroller.offsetHeight, headPos.y + lineOff.top - wrapOff.top)) + "px";
|
|
|
inputDiv.style.left = Math.max(0, Math.min(scroller.offsetWidth, headPos.x + lineOff.left - wrapOff.left)) + "px";
|
|
|
if (collapsed) {
|
|
|
cursor.style.top = headPos.y + "px";
|
|
|
cursor.style.left = (options.lineWrapping ? Math.min(headPos.x, lineSpace.offsetWidth) : headPos.x) + "px";
|
|
|
cursor.style.display = "";
|
|
|
selectionDiv.style.display = "none";
|
|
|
} else {
|
|
|
var sameLine = fromPos.y == toPos.y, html = "";
|
|
|
var clientWidth = lineSpace.clientWidth || lineSpace.offsetWidth;
|
|
|
var clientHeight = lineSpace.clientHeight || lineSpace.offsetHeight;
|
|
|
function add(left, top, right, height) {
|
|
|
var rstyle = quirksMode ? "width: " + (!right ? clientWidth : clientWidth - right - left) + "px"
|
|
|
: "right: " + right + "px";
|
|
|
html += '<div class="CodeMirror-selected" style="position: absolute; left: ' + left +
|
|
|
'px; top: ' + top + 'px; ' + rstyle + '; height: ' + height + 'px"></div>';
|
|
|
}
|
|
|
if (sel.from.ch && fromPos.y >= 0) {
|
|
|
var right = sameLine ? clientWidth - toPos.x : 0;
|
|
|
add(fromPos.x, fromPos.y, right, th);
|
|
|
}
|
|
|
var middleStart = Math.max(0, fromPos.y + (sel.from.ch ? th : 0));
|
|
|
var middleHeight = Math.min(toPos.y, clientHeight) - middleStart;
|
|
|
if (middleHeight > 0.2 * th)
|
|
|
add(0, middleStart, 0, middleHeight);
|
|
|
if ((!sameLine || !sel.from.ch) && toPos.y < clientHeight - .5 * th)
|
|
|
add(0, toPos.y, clientWidth - toPos.x, th);
|
|
|
selectionDiv.innerHTML = html;
|
|
|
cursor.style.display = "none";
|
|
|
selectionDiv.style.display = "";
|
|
|
}
|
|
|
}
|
|
|
|
|
|
function setShift(val) {
|
|
|
if (val) shiftSelecting = shiftSelecting || (sel.inverted ? sel.to : sel.from);
|
|
|
else shiftSelecting = null;
|
|
|
}
|
|
|
function setSelectionUser(from, to) {
|
|
|
var sh = shiftSelecting && clipPos(shiftSelecting);
|
|
|
if (sh) {
|
|
|
if (posLess(sh, from)) from = sh;
|
|
|
else if (posLess(to, sh)) to = sh;
|
|
|
}
|
|
|
setSelection(from, to);
|
|
|
userSelChange = true;
|
|
|
}
|
|
|
// Update the selection. Last two args are only used by
|
|
|
// updateLines, since they have to be expressed in the line
|
|
|
// numbers before the update.
|
|
|
function setSelection(from, to, oldFrom, oldTo) {
|
|
|
goalColumn = null;
|
|
|
if (oldFrom == null) {oldFrom = sel.from.line; oldTo = sel.to.line;}
|
|
|
if (posEq(sel.from, from) && posEq(sel.to, to)) return;
|
|
|
if (posLess(to, from)) {var tmp = to; to = from; from = tmp;}
|
|
|
|
|
|
// Skip over hidden lines.
|
|
|
if (from.line != oldFrom) {
|
|
|
var from1 = skipHidden(from, oldFrom, sel.from.ch);
|
|
|
// If there is no non-hidden line left, force visibility on current line
|
|
|
if (!from1) setLineHidden(from.line, false);
|
|
|
else from = from1;
|
|
|
}
|
|
|
if (to.line != oldTo) to = skipHidden(to, oldTo, sel.to.ch);
|
|
|
|
|
|
if (posEq(from, to)) sel.inverted = false;
|
|
|
else if (posEq(from, sel.to)) sel.inverted = false;
|
|
|
else if (posEq(to, sel.from)) sel.inverted = true;
|
|
|
|
|
|
if (options.autoClearEmptyLines && posEq(sel.from, sel.to)) {
|
|
|
var head = sel.inverted ? from : to;
|
|
|
if (head.line != sel.from.line && sel.from.line < doc.size) {
|
|
|
var oldLine = getLine(sel.from.line);
|
|
|
if (/^\s+$/.test(oldLine.text))
|
|
|
setTimeout(operation(function() {
|
|
|
if (oldLine.parent && /^\s+$/.test(oldLine.text)) {
|
|
|
var no = lineNo(oldLine);
|
|
|
replaceRange("", {line: no, ch: 0}, {line: no, ch: oldLine.text.length});
|
|
|
}
|
|
|
}, 10));
|
|
|
}
|
|
|
}
|
|
|
|
|
|
sel.from = from; sel.to = to;
|
|
|
selectionChanged = true;
|
|
|
}
|
|
|
function skipHidden(pos, oldLine, oldCh) {
|
|
|
function getNonHidden(dir) {
|
|
|
var lNo = pos.line + dir, end = dir == 1 ? doc.size : -1;
|
|
|
while (lNo != end) {
|
|
|
var line = getLine(lNo);
|
|
|
if (!line.hidden) {
|
|
|
var ch = pos.ch;
|
|
|
if (toEnd || ch > oldCh || ch > line.text.length) ch = line.text.length;
|
|
|
return {line: lNo, ch: ch};
|
|
|
}
|
|
|
lNo += dir;
|
|
|
}
|
|
|
}
|
|
|
var line = getLine(pos.line);
|
|
|
var toEnd = pos.ch == line.text.length && pos.ch != oldCh;
|
|
|
if (!line.hidden) return pos;
|
|
|
if (pos.line >= oldLine) return getNonHidden(1) || getNonHidden(-1);
|
|
|
else return getNonHidden(-1) || getNonHidden(1);
|
|
|
}
|
|
|
function setCursor(line, ch, user) {
|
|
|
var pos = clipPos({line: line, ch: ch || 0});
|
|
|
(user ? setSelectionUser : setSelection)(pos, pos);
|
|
|
}
|
|
|
|
|
|
function clipLine(n) {return Math.max(0, Math.min(n, doc.size-1));}
|
|
|
function clipPos(pos) {
|
|
|
if (pos.line < 0) return {line: 0, ch: 0};
|
|
|
if (pos.line >= doc.size) return {line: doc.size-1, ch: getLine(doc.size-1).text.length};
|
|
|
var ch = pos.ch, linelen = getLine(pos.line).text.length;
|
|
|
if (ch == null || ch > linelen) return {line: pos.line, ch: linelen};
|
|
|
else if (ch < 0) return {line: pos.line, ch: 0};
|
|
|
else return pos;
|
|
|
}
|
|
|
|
|
|
function findPosH(dir, unit) {
|
|
|
var end = sel.inverted ? sel.from : sel.to, line = end.line, ch = end.ch;
|
|
|
var lineObj = getLine(line);
|
|
|
function findNextLine() {
|
|
|
for (var l = line + dir, e = dir < 0 ? -1 : doc.size; l != e; l += dir) {
|
|
|
var lo = getLine(l);
|
|
|
if (!lo.hidden) { line = l; lineObj = lo; return true; }
|
|
|
}
|
|
|
}
|
|
|
function moveOnce(boundToLine) {
|
|
|
if (ch == (dir < 0 ? 0 : lineObj.text.length)) {
|
|
|
if (!boundToLine && findNextLine()) ch = dir < 0 ? lineObj.text.length : 0;
|
|
|
else return false;
|
|
|
} else ch += dir;
|
|
|
return true;
|
|
|
}
|
|
|
if (unit == "char") moveOnce();
|
|
|
else if (unit == "column") moveOnce(true);
|
|
|
else if (unit == "word") {
|
|
|
var sawWord = false;
|
|
|
for (;;) {
|
|
|
if (dir < 0) if (!moveOnce()) break;
|
|
|
if (isWordChar(lineObj.text.charAt(ch))) sawWord = true;
|
|
|
else if (sawWord) {if (dir < 0) {dir = 1; moveOnce();} break;}
|
|
|
if (dir > 0) if (!moveOnce()) break;
|
|
|
}
|
|
|
}
|
|
|
return {line: line, ch: ch};
|
|
|
}
|
|
|
function moveH(dir, unit) {
|
|
|
var pos = dir < 0 ? sel.from : sel.to;
|
|
|
if (shiftSelecting || posEq(sel.from, sel.to)) pos = findPosH(dir, unit);
|
|
|
setCursor(pos.line, pos.ch, true);
|
|
|
}
|
|
|
function deleteH(dir, unit) {
|
|
|
if (!posEq(sel.from, sel.to)) replaceRange("", sel.from, sel.to);
|
|
|
else if (dir < 0) replaceRange("", findPosH(dir, unit), sel.to);
|
|
|
else replaceRange("", sel.from, findPosH(dir, unit));
|
|
|
userSelChange = true;
|
|
|
}
|
|
|
var goalColumn = null;
|
|
|
function moveV(dir, unit) {
|
|
|
var dist = 0, pos = localCoords(sel.inverted ? sel.from : sel.to, true);
|
|
|
if (goalColumn != null) pos.x = goalColumn;
|
|
|
if (unit == "page") dist = Math.min(scroller.clientHeight, window.innerHeight || document.documentElement.clientHeight);
|
|
|
else if (unit == "line") dist = textHeight();
|
|
|
var target = coordsChar(pos.x, pos.y + dist * dir + 2);
|
|
|
if (unit == "page") scrollbar.scrollTop += localCoords(target, true).y - pos.y;
|
|
|
setCursor(target.line, target.ch, true);
|
|
|
goalColumn = pos.x;
|
|
|
}
|
|
|
|
|
|
function findWordAt(pos) {
|
|
|
var line = getLine(pos.line).text;
|
|
|
var start = pos.ch, end = pos.ch;
|
|
|
var check = isWordChar(line.charAt(start < line.length ? start : start - 1)) ?
|
|
|
isWordChar : function(ch) {return !isWordChar(ch);};
|
|
|
while (start > 0 && check(line.charAt(start - 1))) --start;
|
|
|
while (end < line.length && check(line.charAt(end))) ++end;
|
|
|
return {from: {line: pos.line, ch: start}, to: {line: pos.line, ch: end}};
|
|
|
}
|
|
|
function selectLine(line) {
|
|
|
setSelectionUser({line: line, ch: 0}, clipPos({line: line + 1, ch: 0}));
|
|
|
}
|
|
|
function indentSelected(mode) {
|
|
|
if (posEq(sel.from, sel.to)) return indentLine(sel.from.line, mode);
|
|
|
var e = sel.to.line - (sel.to.ch ? 0 : 1);
|
|
|
for (var i = sel.from.line; i <= e; ++i) indentLine(i, mode);
|
|
|
}
|
|
|
|
|
|
function indentLine(n, how) {
|
|
|
if (!how) how = "add";
|
|
|
if (how == "smart") {
|
|
|
if (!mode.indent) how = "prev";
|
|
|
else var state = getStateBefore(n);
|
|
|
}
|
|
|
|
|
|
var line = getLine(n), curSpace = line.indentation(options.tabSize),
|
|
|
curSpaceString = line.text.match(/^\s*/)[0], indentation;
|
|
|
if (how == "smart") {
|
|
|
indentation = mode.indent(state, line.text.slice(curSpaceString.length), line.text);
|
|
|
if (indentation == Pass) how = "prev";
|
|
|
}
|
|
|
if (how == "prev") {
|
|
|
if (n) indentation = getLine(n-1).indentation(options.tabSize);
|
|
|
else indentation = 0;
|
|
|
}
|
|
|
else if (how == "add") indentation = curSpace + options.indentUnit;
|
|
|
else if (how == "subtract") indentation = curSpace - options.indentUnit;
|
|
|
indentation = Math.max(0, indentation);
|
|
|
var diff = indentation - curSpace;
|
|
|
|
|
|
var indentString = "", pos = 0;
|
|
|
if (options.indentWithTabs)
|
|
|
for (var i = Math.floor(indentation / options.tabSize); i; --i) {pos += options.tabSize; indentString += "\t";}
|
|
|
while (pos < indentation) {++pos; indentString += " ";}
|
|
|
|
|
|
replaceRange(indentString, {line: n, ch: 0}, {line: n, ch: curSpaceString.length});
|
|
|
}
|
|
|
|
|
|
function loadMode() {
|
|
|
mode = CodeMirror.getMode(options, options.mode);
|
|
|
doc.iter(0, doc.size, function(line) { line.stateAfter = null; });
|
|
|
work = [0];
|
|
|
startWorker();
|
|
|
}
|
|
|
function gutterChanged() {
|
|
|
var visible = options.gutter || options.lineNumbers;
|
|
|
gutter.style.display = visible ? "" : "none";
|
|
|
if (visible) gutterDirty = true;
|
|
|
else lineDiv.parentNode.style.marginLeft = 0;
|
|
|
}
|
|
|
function wrappingChanged(from, to) {
|
|
|
if (options.lineWrapping) {
|
|
|
wrapper.className += " CodeMirror-wrap";
|
|
|
var perLine = scroller.clientWidth / charWidth() - 3;
|
|
|
doc.iter(0, doc.size, function(line) {
|
|
|
if (line.hidden) return;
|
|
|
var guess = Math.ceil(line.text.length / perLine) || 1;
|
|
|
if (guess != 1) updateLineHeight(line, guess);
|
|
|
});
|
|
|
lineSpace.style.width = code.style.width = "";
|
|
|
widthForcer.style.left = "";
|
|
|
} else {
|
|
|
wrapper.className = wrapper.className.replace(" CodeMirror-wrap", "");
|
|
|
maxLine = ""; maxLineChanged = true;
|
|
|
doc.iter(0, doc.size, function(line) {
|
|
|
if (line.height != 1 && !line.hidden) updateLineHeight(line, 1);
|
|
|
if (line.text.length > maxLine.length) maxLine = line.text;
|
|
|
});
|
|
|
}
|
|
|
changes.push({from: 0, to: doc.size});
|
|
|
}
|
|
|
function makeTab(col) {
|
|
|
var w = options.tabSize - col % options.tabSize, cached = tabCache[w];
|
|
|
if (cached) return cached;
|
|
|
for (var str = '<span class="cm-tab">', i = 0; i < w; ++i) str += " ";
|
|
|
return (tabCache[w] = {html: str + "</span>", width: w});
|
|
|
}
|
|
|
function themeChanged() {
|
|
|
scroller.className = scroller.className.replace(/\s*cm-s-\S+/g, "") +
|
|
|
options.theme.replace(/(^|\s)\s*/g, " cm-s-");
|
|
|
}
|
|
|
function keyMapChanged() {
|
|
|
var style = keyMap[options.keyMap].style;
|
|
|
wrapper.className = wrapper.className.replace(/\s*cm-keymap-\S+/g, "") +
|
|
|
(style ? " cm-keymap-" + style : "");
|
|
|
}
|
|
|
|
|
|
function TextMarker() { this.set = []; }
|
|
|
TextMarker.prototype.clear = operation(function() {
|
|
|
var min = Infinity, max = -Infinity;
|
|
|
for (var i = 0, e = this.set.length; i < e; ++i) {
|
|
|
var line = this.set[i], mk = line.marked;
|
|
|
if (!mk || !line.parent) continue;
|
|
|
var lineN = lineNo(line);
|
|
|
min = Math.min(min, lineN); max = Math.max(max, lineN);
|
|
|
for (var j = 0; j < mk.length; ++j)
|
|
|
if (mk[j].marker == this) mk.splice(j--, 1);
|
|
|
}
|
|
|
if (min != Infinity)
|
|
|
changes.push({from: min, to: max + 1});
|
|
|
});
|
|
|
TextMarker.prototype.find = function() {
|
|
|
var from, to;
|
|
|
for (var i = 0, e = this.set.length; i < e; ++i) {
|
|
|
var line = this.set[i], mk = line.marked;
|
|
|
for (var j = 0; j < mk.length; ++j) {
|
|
|
var mark = mk[j];
|
|
|
if (mark.marker == this) {
|
|
|
if (mark.from != null || mark.to != null) {
|
|
|
var found = lineNo(line);
|
|
|
if (found != null) {
|
|
|
if (mark.from != null) from = {line: found, ch: mark.from};
|
|
|
if (mark.to != null) to = {line: found, ch: mark.to};
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
return {from: from, to: to};
|
|
|
};
|
|
|
|
|
|
function markText(from, to, className) {
|
|
|
from = clipPos(from); to = clipPos(to);
|
|
|
var tm = new TextMarker();
|
|
|
if (!posLess(from, to)) return tm;
|
|
|
function add(line, from, to, className) {
|
|
|
getLine(line).addMark(new MarkedText(from, to, className, tm));
|
|
|
}
|
|
|
if (from.line == to.line) add(from.line, from.ch, to.ch, className);
|
|
|
else {
|
|
|
add(from.line, from.ch, null, className);
|
|
|
for (var i = from.line + 1, e = to.line; i < e; ++i)
|
|
|
add(i, null, null, className);
|
|
|
add(to.line, null, to.ch, className);
|
|
|
}
|
|
|
changes.push({from: from.line, to: to.line + 1});
|
|
|
return tm;
|
|
|
}
|
|
|
|
|
|
function setBookmark(pos) {
|
|
|
pos = clipPos(pos);
|
|
|
var bm = new Bookmark(pos.ch);
|
|
|
getLine(pos.line).addMark(bm);
|
|
|
return bm;
|
|
|
}
|
|
|
|
|
|
function findMarksAt(pos) {
|
|
|
pos = clipPos(pos);
|
|
|
var markers = [], marked = getLine(pos.line).marked;
|
|
|
if (!marked) return markers;
|
|
|
for (var i = 0, e = marked.length; i < e; ++i) {
|
|
|
var m = marked[i];
|
|
|
if ((m.from == null || m.from <= pos.ch) &&
|
|
|
(m.to == null || m.to >= pos.ch))
|
|
|
markers.push(m.marker || m);
|
|
|
}
|
|
|
return markers;
|
|
|
}
|
|
|
|
|
|
function addGutterMarker(line, text, className) {
|
|
|
if (typeof line == "number") line = getLine(clipLine(line));
|
|
|
line.gutterMarker = {text: text, style: className};
|
|
|
gutterDirty = true;
|
|
|
return line;
|
|
|
}
|
|
|
function removeGutterMarker(line) {
|
|
|
if (typeof line == "number") line = getLine(clipLine(line));
|
|
|
line.gutterMarker = null;
|
|
|
gutterDirty = true;
|
|
|
}
|
|
|
|
|
|
function changeLine(handle, op) {
|
|
|
var no = handle, line = handle;
|
|
|
if (typeof handle == "number") line = getLine(clipLine(handle));
|
|
|
else no = lineNo(handle);
|
|
|
if (no == null) return null;
|
|
|
if (op(line, no)) changes.push({from: no, to: no + 1});
|
|
|
else return null;
|
|
|
return line;
|
|
|
}
|
|
|
function setLineClass(handle, className, bgClassName) {
|
|
|
return changeLine(handle, function(line) {
|
|
|
if (line.className != className || line.bgClassName != bgClassName) {
|
|
|
line.className = className;
|
|
|
line.bgClassName = bgClassName;
|
|
|
return true;
|
|
|
}
|
|
|
});
|
|
|
}
|
|
|
function setLineHidden(handle, hidden) {
|
|
|
return changeLine(handle, function(line, no) {
|
|
|
if (line.hidden != hidden) {
|
|
|
line.hidden = hidden;
|
|
|
if (!options.lineWrapping) {
|
|
|
var l = line.text;
|
|
|
if (hidden && l.length == maxLine.length) {
|
|
|
updateMaxLine = true;
|
|
|
} else if (!hidden && l.length > maxLine.length) {
|
|
|
maxLine = l; updateMaxLine = false;
|
|
|
}
|
|
|
}
|
|
|
updateLineHeight(line, hidden ? 0 : 1);
|
|
|
var fline = sel.from.line, tline = sel.to.line;
|
|
|
if (hidden && (fline == no || tline == no)) {
|
|
|
var from = fline == no ? skipHidden({line: fline, ch: 0}, fline, 0) : sel.from;
|
|
|
var to = tline == no ? skipHidden({line: tline, ch: 0}, tline, 0) : sel.to;
|
|
|
// Can't hide the last visible line, we'd have no place to put the cursor
|
|
|
if (!to) return;
|
|
|
setSelection(from, to);
|
|
|
}
|
|
|
return (gutterDirty = true);
|
|
|
}
|
|
|
});
|
|
|
}
|
|
|
|
|
|
function lineInfo(line) {
|
|
|
if (typeof line == "number") {
|
|
|
if (!isLine(line)) return null;
|
|
|
var n = line;
|
|
|
line = getLine(line);
|
|
|
if (!line) return null;
|
|
|
} else {
|
|
|
var n = lineNo(line);
|
|
|
if (n == null) return null;
|
|
|
}
|
|
|
var marker = line.gutterMarker;
|
|
|
return {line: n, handle: line, text: line.text, markerText: marker && marker.text,
|
|
|
markerClass: marker && marker.style, lineClass: line.className, bgClass: line.bgClassName};
|
|
|
}
|
|
|
|
|
|
function stringWidth(str) {
|
|
|
measure.innerHTML = "<pre><span>x</span></pre>";
|
|
|
measure.firstChild.firstChild.firstChild.nodeValue = str;
|
|
|
return measure.firstChild.firstChild.offsetWidth || 10;
|
|
|
}
|
|
|
// These are used to go from pixel positions to character
|
|
|
// positions, taking varying character widths into account.
|
|
|
function charFromX(line, x) {
|
|
|
if (x <= 0) return 0;
|
|
|
var lineObj = getLine(line), text = lineObj.text;
|
|
|
function getX(len) {
|
|
|
return measureLine(lineObj, len).left;
|
|
|
}
|
|
|
var from = 0, fromX = 0, to = text.length, toX;
|
|
|
// Guess a suitable upper bound for our search.
|
|
|
var estimated = Math.min(to, Math.ceil(x / charWidth()));
|
|
|
for (;;) {
|
|
|
var estX = getX(estimated);
|
|
|
if (estX <= x && estimated < to) estimated = Math.min(to, Math.ceil(estimated * 1.2));
|
|
|
else {toX = estX; to = estimated; break;}
|
|
|
}
|
|
|
if (x > toX) return to;
|
|
|
// Try to guess a suitable lower bound as well.
|
|
|
estimated = Math.floor(to * 0.8); estX = getX(estimated);
|
|
|
if (estX < x) {from = estimated; fromX = estX;}
|
|
|
// Do a binary search between these bounds.
|
|
|
for (;;) {
|
|
|
if (to - from <= 1) return (toX - x > x - fromX) ? from : to;
|
|
|
var middle = Math.ceil((from + to) / 2), middleX = getX(middle);
|
|
|
if (middleX > x) {to = middle; toX = middleX;}
|
|
|
else {from = middle; fromX = middleX;}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
var tempId = "CodeMirror-temp-" + Math.floor(Math.random() * 0xffffff).toString(16);
|
|
|
function measureLine(line, ch) {
|
|
|
if (ch == 0) return {top: 0, left: 0};
|
|
|
var wbr = options.lineWrapping && ch < line.text.length &&
|
|
|
spanAffectsWrapping.test(line.text.slice(ch - 1, ch + 1));
|
|
|
measure.innerHTML = "<pre>" + line.getHTML(makeTab, ch, tempId, wbr) + "</pre>";
|
|
|
var elt = document.getElementById(tempId);
|
|
|
var top = elt.offsetTop, left = elt.offsetLeft;
|
|
|
// Older IEs report zero offsets for spans directly after a wrap
|
|
|
if (ie && top == 0 && left == 0) {
|
|
|
var backup = document.createElement("span");
|
|
|
backup.innerHTML = "x";
|
|
|
elt.parentNode.insertBefore(backup, elt.nextSibling);
|
|
|
top = backup.offsetTop;
|
|
|
}
|
|
|
return {top: top, left: left};
|
|
|
}
|
|
|
function localCoords(pos, inLineWrap) {
|
|
|
var x, lh = textHeight(), y = lh * (heightAtLine(doc, pos.line) - (inLineWrap ? displayOffset : 0));
|
|
|
if (pos.ch == 0) x = 0;
|
|
|
else {
|
|
|
var sp = measureLine(getLine(pos.line), pos.ch);
|
|
|
x = sp.left;
|
|
|
if (options.lineWrapping) y += Math.max(0, sp.top);
|
|
|
}
|
|
|
return {x: x, y: y, yBot: y + lh};
|
|
|
}
|
|
|
// Coords must be lineSpace-local
|
|
|
function coordsChar(x, y) {
|
|
|
if (y < 0) y = 0;
|
|
|
var th = textHeight(), cw = charWidth(), heightPos = displayOffset + Math.floor(y / th);
|
|
|
var lineNo = lineAtHeight(doc, heightPos);
|
|
|
if (lineNo >= doc.size) return {line: doc.size - 1, ch: getLine(doc.size - 1).text.length};
|
|
|
var lineObj = getLine(lineNo), text = lineObj.text;
|
|
|
var tw = options.lineWrapping, innerOff = tw ? heightPos - heightAtLine(doc, lineNo) : 0;
|
|
|
if (x <= 0 && innerOff == 0) return {line: lineNo, ch: 0};
|
|
|
function getX(len) {
|
|
|
var sp = measureLine(lineObj, len);
|
|
|
if (tw) {
|
|
|
var off = Math.round(sp.top / th);
|
|
|
return Math.max(0, sp.left + (off - innerOff) * scroller.clientWidth);
|
|
|
}
|
|
|
return sp.left;
|
|
|
}
|
|
|
var from = 0, fromX = 0, to = text.length, toX;
|
|
|
// Guess a suitable upper bound for our search.
|
|
|
var estimated = Math.min(to, Math.ceil((x + innerOff * scroller.clientWidth * .9) / cw));
|
|
|
for (;;) {
|
|
|
var estX = getX(estimated);
|
|
|
if (estX <= x && estimated < to) estimated = Math.min(to, Math.ceil(estimated * 1.2));
|
|
|
else {toX = estX; to = estimated; break;}
|
|
|
}
|
|
|
if (x > toX) return {line: lineNo, ch: to};
|
|
|
// Try to guess a suitable lower bound as well.
|
|
|
estimated = Math.floor(to * 0.8); estX = getX(estimated);
|
|
|
if (estX < x) {from = estimated; fromX = estX;}
|
|
|
// Do a binary search between these bounds.
|
|
|
for (;;) {
|
|
|
if (to - from <= 1) return {line: lineNo, ch: (toX - x > x - fromX) ? from : to};
|
|
|
var middle = Math.ceil((from + to) / 2), middleX = getX(middle);
|
|
|
if (middleX > x) {to = middle; toX = middleX;}
|
|
|
else {from = middle; fromX = middleX;}
|
|
|
}
|
|
|
}
|
|
|
function pageCoords(pos) {
|
|
|
var local = localCoords(pos, true), off = eltOffset(lineSpace);
|
|
|
return {x: off.left + local.x, y: off.top + local.y, yBot: off.top + local.yBot};
|
|
|
}
|
|
|
|
|
|
var cachedHeight, cachedHeightFor, measureText;
|
|
|
function textHeight() {
|
|
|
if (measureText == null) {
|
|
|
measureText = "<pre>";
|
|
|
for (var i = 0; i < 49; ++i) measureText += "x<br/>";
|
|
|
measureText += "x</pre>";
|
|
|
}
|
|
|
var offsetHeight = lineDiv.clientHeight;
|
|
|
if (offsetHeight == cachedHeightFor) return cachedHeight;
|
|
|
cachedHeightFor = offsetHeight;
|
|
|
measure.innerHTML = measureText;
|
|
|
cachedHeight = measure.firstChild.offsetHeight / 50 || 1;
|
|
|
measure.innerHTML = "";
|
|
|
return cachedHeight;
|
|
|
}
|
|
|
var cachedWidth, cachedWidthFor = 0;
|
|
|
function charWidth() {
|
|
|
if (scroller.clientWidth == cachedWidthFor) return cachedWidth;
|
|
|
cachedWidthFor = scroller.clientWidth;
|
|
|
return (cachedWidth = stringWidth("x"));
|
|
|
}
|
|
|
function paddingTop() {return lineSpace.offsetTop;}
|
|
|
function paddingLeft() {return lineSpace.offsetLeft;}
|
|
|
|
|
|
function posFromMouse(e, liberal) {
|
|
|
var offW = eltOffset(scroller, true), x, y;
|
|
|
// Fails unpredictably on IE[67] when mouse is dragged around quickly.
|
|
|
try { x = e.clientX; y = e.clientY; } catch (e) { return null; }
|
|
|
// This is a mess of a heuristic to try and determine whether a
|
|
|
// scroll-bar was clicked or not, and to return null if one was
|
|
|
// (and !liberal).
|
|
|
if (!liberal && (x - offW.left > scroller.clientWidth || y - offW.top > scroller.clientHeight))
|
|
|
return null;
|
|
|
var offL = eltOffset(lineSpace, true);
|
|
|
return coordsChar(x - offL.left, y - offL.top);
|
|
|
}
|
|
|
function onContextMenu(e) {
|
|
|
var pos = posFromMouse(e), scrollPos = scrollbar.scrollTop;
|
|
|
if (!pos || opera) return; // Opera is difficult.
|
|
|
if (posEq(sel.from, sel.to) || posLess(pos, sel.from) || !posLess(pos, sel.to))
|
|
|
operation(setCursor)(pos.line, pos.ch);
|
|
|
|
|
|
var oldCSS = input.style.cssText;
|
|
|
inputDiv.style.position = "absolute";
|
|
|
input.style.cssText = "position: fixed; width: 30px; height: 30px; top: " + (e.clientY - 5) +
|
|
|
"px; left: " + (e.clientX - 5) + "px; z-index: 1000; background: white; " +
|
|
|
"border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);";
|
|
|
leaveInputAlone = true;
|
|
|
var val = input.value = getSelection();
|
|
|
focusInput();
|
|
|
selectInput(input);
|
|
|
function rehide() {
|
|
|
var newVal = splitLines(input.value).join("\n");
|
|
|
if (newVal != val && !options.readOnly) operation(replaceSelection)(newVal, "end");
|
|
|
inputDiv.style.position = "relative";
|
|
|
input.style.cssText = oldCSS;
|
|
|
if (ie_lt9) scrollbar.scrollTop = scrollPos;
|
|
|
leaveInputAlone = false;
|
|
|
resetInput(true);
|
|
|
slowPoll();
|
|
|
}
|
|
|
|
|
|
if (gecko) {
|
|
|
e_stop(e);
|
|
|
var mouseup = connect(window, "mouseup", function() {
|
|
|
mouseup();
|
|
|
setTimeout(rehide, 20);
|
|
|
}, true);
|
|
|
} else {
|
|
|
setTimeout(rehide, 50);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// Cursor-blinking
|
|
|
function restartBlink() {
|
|
|
clearInterval(blinker);
|
|
|
var on = true;
|
|
|
cursor.style.visibility = "";
|
|
|
blinker = setInterval(function() {
|
|
|
cursor.style.visibility = (on = !on) ? "" : "hidden";
|
|
|
}, 650);
|
|
|
}
|
|
|
|
|
|
var matching = {"(": ")>", ")": "(<", "[": "]>", "]": "[<", "{": "}>", "}": "{<"};
|
|
|
function matchBrackets(autoclear) {
|
|
|
var head = sel.inverted ? sel.from : sel.to, line = getLine(head.line), pos = head.ch - 1;
|
|
|
var match = (pos >= 0 && matching[line.text.charAt(pos)]) || matching[line.text.charAt(++pos)];
|
|
|
if (!match) return;
|
|
|
var ch = match.charAt(0), forward = match.charAt(1) == ">", d = forward ? 1 : -1, st = line.styles;
|
|
|
for (var off = pos + 1, i = 0, e = st.length; i < e; i+=2)
|
|
|
if ((off -= st[i].length) <= 0) {var style = st[i+1]; break;}
|
|
|
|
|
|
var stack = [line.text.charAt(pos)], re = /[(){}[\]]/;
|
|
|
function scan(line, from, to) {
|
|
|
if (!line.text) return;
|
|
|
var st = line.styles, pos = forward ? 0 : line.text.length - 1, cur;
|
|
|
for (var i = forward ? 0 : st.length - 2, e = forward ? st.length : -2; i != e; i += 2*d) {
|
|
|
var text = st[i];
|
|
|
if (st[i+1] != style) {pos += d * text.length; continue;}
|
|
|
for (var j = forward ? 0 : text.length - 1, te = forward ? text.length : -1; j != te; j += d, pos+=d) {
|
|
|
if (pos >= from && pos < to && re.test(cur = text.charAt(j))) {
|
|
|
var match = matching[cur];
|
|
|
if (match.charAt(1) == ">" == forward) stack.push(cur);
|
|
|
else if (stack.pop() != match.charAt(0)) return {pos: pos, match: false};
|
|
|
else if (!stack.length) return {pos: pos, match: true};
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
for (var i = head.line, e = forward ? Math.min(i + 100, doc.size) : Math.max(-1, i - 100); i != e; i+=d) {
|
|
|
var line = getLine(i), first = i == head.line;
|
|
|
var found = scan(line, first && forward ? pos + 1 : 0, first && !forward ? pos : line.text.length);
|
|
|
if (found) break;
|
|
|
}
|
|
|
if (!found) found = {pos: null, match: false};
|
|
|
var style = found.match ? "CodeMirror-matchingbracket" : "CodeMirror-nonmatchingbracket";
|
|
|
var one = markText({line: head.line, ch: pos}, {line: head.line, ch: pos+1}, style),
|
|
|
two = found.pos != null && markText({line: i, ch: found.pos}, {line: i, ch: found.pos + 1}, style);
|
|
|
var clear = operation(function(){one.clear(); two && two.clear();});
|
|
|
if (autoclear) setTimeout(clear, 800);
|
|
|
else bracketHighlighted = clear;
|
|
|
}
|
|
|
|
|
|
// Finds the line to start with when starting a parse. Tries to
|
|
|
// find a line with a stateAfter, so that it can start with a
|
|
|
// valid state. If that fails, it returns the line with the
|
|
|
// smallest indentation, which tends to need the least context to
|
|
|
// parse correctly.
|
|
|
function findStartLine(n) {
|
|
|
var minindent, minline;
|
|
|
for (var search = n, lim = n - 40; search > lim; --search) {
|
|
|
if (search == 0) return 0;
|
|
|
var line = getLine(search-1);
|
|
|
if (line.stateAfter) return search;
|
|
|
var indented = line.indentation(options.tabSize);
|
|
|
if (minline == null || minindent > indented) {
|
|
|
minline = search - 1;
|
|
|
minindent = indented;
|
|
|
}
|
|
|
}
|
|
|
return minline;
|
|
|
}
|
|
|
function getStateBefore(n) {
|
|
|
var start = findStartLine(n), state = start && getLine(start-1).stateAfter;
|
|
|
if (!state) state = startState(mode);
|
|
|
else state = copyState(mode, state);
|
|
|
doc.iter(start, n, function(line) {
|
|
|
line.highlight(mode, state, options.tabSize);
|
|
|
line.stateAfter = copyState(mode, state);
|
|
|
});
|
|
|
if (start < n) changes.push({from: start, to: n});
|
|
|
if (n < doc.size && !getLine(n).stateAfter) work.push(n);
|
|
|
return state;
|
|
|
}
|
|
|
function highlightLines(start, end) {
|
|
|
var state = getStateBefore(start);
|
|
|
doc.iter(start, end, function(line) {
|
|
|
line.highlight(mode, state, options.tabSize);
|
|
|
line.stateAfter = copyState(mode, state);
|
|
|
});
|
|
|
}
|
|
|
function highlightWorker() {
|
|
|
var end = +new Date + options.workTime;
|
|
|
var foundWork = work.length;
|
|
|
while (work.length) {
|
|
|
if (!getLine(showingFrom).stateAfter) var task = showingFrom;
|
|
|
else var task = work.pop();
|
|
|
if (task >= doc.size) continue;
|
|
|
var start = findStartLine(task), state = start && getLine(start-1).stateAfter;
|
|
|
if (state) state = copyState(mode, state);
|
|
|
else state = startState(mode);
|
|
|
|
|
|
var unchanged = 0, compare = mode.compareStates, realChange = false,
|
|
|
i = start, bail = false;
|
|
|
doc.iter(i, doc.size, function(line) {
|
|
|
var hadState = line.stateAfter;
|
|
|
if (+new Date > end) {
|
|
|
work.push(i);
|
|
|
startWorker(options.workDelay);
|
|
|
if (realChange) changes.push({from: task, to: i + 1});
|
|
|
return (bail = true);
|
|
|
}
|
|
|
var changed = line.highlight(mode, state, options.tabSize);
|
|
|
if (changed) realChange = true;
|
|
|
line.stateAfter = copyState(mode, state);
|
|
|
var done = null;
|
|
|
if (compare) {
|
|
|
var same = hadState && compare(hadState, state);
|
|
|
if (same != Pass) done = !!same;
|
|
|
}
|
|
|
if (done == null) {
|
|
|
if (changed !== false || !hadState) unchanged = 0;
|
|
|
else if (++unchanged > 3 && (!mode.indent || mode.indent(hadState, "") == mode.indent(state, "")))
|
|
|
done = true;
|
|
|
}
|
|
|
if (done) return true;
|
|
|
++i;
|
|
|
});
|
|
|
if (bail) return;
|
|
|
if (realChange) changes.push({from: task, to: i + 1});
|
|
|
}
|
|
|
if (foundWork && options.onHighlightComplete)
|
|
|
options.onHighlightComplete(instance);
|
|
|
}
|
|
|
function startWorker(time) {
|
|
|
if (!work.length) return;
|
|
|
highlight.set(time, operation(highlightWorker));
|
|
|
}
|
|
|
|
|
|
// Operations are used to wrap changes in such a way that each
|
|
|
// change won't have to update the cursor and display (which would
|
|
|
// be awkward, slow, and error-prone), but instead updates are
|
|
|
// batched and then all combined and executed at once.
|
|
|
function startOperation() {
|
|
|
updateInput = userSelChange = textChanged = null;
|
|
|
changes = []; selectionChanged = false; callbacks = [];
|
|
|
}
|
|
|
function endOperation() {
|
|
|
if (updateMaxLine) computeMaxLength();
|
|
|
if (maxLineChanged && !options.lineWrapping) {
|
|
|
var cursorWidth = widthForcer.offsetWidth, left = stringWidth(maxLine);
|
|
|
widthForcer.style.left = left + "px";
|
|
|
lineSpace.style.minWidth = (left + cursorWidth) + "px";
|
|
|
maxLineChanged = false;
|
|
|
}
|
|
|
var newScrollPos, updated;
|
|
|
if (selectionChanged) {
|
|
|
var coords = calculateCursorCoords();
|
|
|
newScrollPos = calculateScrollPos(coords.x, coords.y, coords.x, coords.yBot);
|
|
|
}
|
|
|
if (changes.length) updated = updateDisplay(changes, true, (newScrollPos ? newScrollPos.scrollTop : null));
|
|
|
else {
|
|
|
if (selectionChanged) updateSelection();
|
|
|
if (gutterDirty) updateGutter();
|
|
|
}
|
|
|
if (newScrollPos) scrollCursorIntoView();
|
|
|
if (selectionChanged) {scrollEditorIntoView(); restartBlink();}
|
|
|
|
|
|
if (focused && !leaveInputAlone &&
|
|
|
(updateInput === true || (updateInput !== false && selectionChanged)))
|
|
|
resetInput(userSelChange);
|
|
|
|
|
|
if (selectionChanged && options.matchBrackets)
|
|
|
setTimeout(operation(function() {
|
|
|
if (bracketHighlighted) {bracketHighlighted(); bracketHighlighted = null;}
|
|
|
if (posEq(sel.from, sel.to)) matchBrackets(false);
|
|
|
}), 20);
|
|
|
var sc = selectionChanged, cbs = callbacks; // these can be reset by callbacks
|
|
|
if (textChanged && options.onChange && instance)
|
|
|
options.onChange(instance, textChanged);
|
|
|
if (sc && options.onCursorActivity)
|
|
|
options.onCursorActivity(instance);
|
|
|
for (var i = 0; i < cbs.length; ++i) cbs[i](instance);
|
|
|
if (updated && options.onUpdate) options.onUpdate(instance);
|
|
|
}
|
|
|
var nestedOperation = 0;
|
|
|
function operation(f) {
|
|
|
return function() {
|
|
|
if (!nestedOperation++) startOperation();
|
|
|
try {var result = f.apply(this, arguments);}
|
|
|
finally {if (!--nestedOperation) endOperation();}
|
|
|
return result;
|
|
|
};
|
|
|
}
|
|
|
|
|
|
function compoundChange(f) {
|
|
|
history.startCompound();
|
|
|
try { return f(); } finally { history.endCompound(); }
|
|
|
}
|
|
|
|
|
|
for (var ext in extensions)
|
|
|
if (extensions.propertyIsEnumerable(ext) &&
|
|
|
!instance.propertyIsEnumerable(ext))
|
|
|
instance[ext] = extensions[ext];
|
|
|
return instance;
|
|
|
} // (end of function CodeMirror)
|
|
|
|
|
|
// The default configuration options.
|
|
|
CodeMirror.defaults = {
|
|
|
value: "",
|
|
|
mode: null,
|
|
|
theme: "default",
|
|
|
indentUnit: 2,
|
|
|
indentWithTabs: false,
|
|
|
smartIndent: true,
|
|
|
tabSize: 4,
|
|
|
keyMap: "default",
|
|
|
extraKeys: null,
|
|
|
electricChars: true,
|
|
|
autoClearEmptyLines: false,
|
|
|
onKeyEvent: null,
|
|
|
onDragEvent: null,
|
|
|
lineWrapping: false,
|
|
|
lineNumbers: false,
|
|
|
gutter: false,
|
|
|
fixedGutter: false,
|
|
|
firstLineNumber: 1,
|
|
|
readOnly: false,
|
|
|
dragDrop: true,
|
|
|
onChange: null,
|
|
|
onCursorActivity: null,
|
|
|
onGutterClick: null,
|
|
|
onHighlightComplete: null,
|
|
|
onUpdate: null,
|
|
|
onFocus: null, onBlur: null, onScroll: null,
|
|
|
matchBrackets: false,
|
|
|
workTime: 100,
|
|
|
workDelay: 200,
|
|
|
pollInterval: 100,
|
|
|
undoDepth: 40,
|
|
|
tabindex: null,
|
|
|
autofocus: null,
|
|
|
lineNumberFormatter: function(integer) { return integer; }
|
|
|
};
|
|
|
|
|
|
var ios = /AppleWebKit/.test(navigator.userAgent) && /Mobile\/\w+/.test(navigator.userAgent);
|
|
|
var mac = ios || /Mac/.test(navigator.platform);
|
|
|
var win = /Win/.test(navigator.platform);
|
|
|
|
|
|
// Known modes, by name and by MIME
|
|
|
var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {};
|
|
|
CodeMirror.defineMode = function(name, mode) {
|
|
|
if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name;
|
|
|
if (arguments.length > 2) {
|
|
|
mode.dependencies = [];
|
|
|
for (var i = 2; i < arguments.length; ++i) mode.dependencies.push(arguments[i]);
|
|
|
}
|
|
|
modes[name] = mode;
|
|
|
};
|
|
|
CodeMirror.defineMIME = function(mime, spec) {
|
|
|
mimeModes[mime] = spec;
|
|
|
};
|
|
|
CodeMirror.resolveMode = function(spec) {
|
|
|
if (typeof spec == "string" && mimeModes.hasOwnProperty(spec))
|
|
|
spec = mimeModes[spec];
|
|
|
else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec))
|
|
|
return CodeMirror.resolveMode("application/xml");
|
|
|
if (typeof spec == "string") return {name: spec};
|
|
|
else return spec || {name: "null"};
|
|
|
};
|
|
|
CodeMirror.getMode = function(options, spec) {
|
|
|
var spec = CodeMirror.resolveMode(spec);
|
|
|
var mfactory = modes[spec.name];
|
|
|
if (!mfactory) return CodeMirror.getMode(options, "text/plain");
|
|
|
return mfactory(options, spec);
|
|
|
};
|
|
|
CodeMirror.listModes = function() {
|
|
|
var list = [];
|
|
|
for (var m in modes)
|
|
|
if (modes.propertyIsEnumerable(m)) list.push(m);
|
|
|
return list;
|
|
|
};
|
|
|
CodeMirror.listMIMEs = function() {
|
|
|
var list = [];
|
|
|
for (var m in mimeModes)
|
|
|
if (mimeModes.propertyIsEnumerable(m)) list.push({mime: m, mode: mimeModes[m]});
|
|
|
return list;
|
|
|
};
|
|
|
|
|
|
var extensions = CodeMirror.extensions = {};
|
|
|
CodeMirror.defineExtension = function(name, func) {
|
|
|
extensions[name] = func;
|
|
|
};
|
|
|
|
|
|
var commands = CodeMirror.commands = {
|
|
|
selectAll: function(cm) {cm.setSelection({line: 0, ch: 0}, {line: cm.lineCount() - 1});},
|
|
|
killLine: function(cm) {
|
|
|
var from = cm.getCursor(true), to = cm.getCursor(false), sel = !posEq(from, to);
|
|
|
if (!sel && cm.getLine(from.line).length == from.ch) cm.replaceRange("", from, {line: from.line + 1, ch: 0});
|
|
|
else cm.replaceRange("", from, sel ? to : {line: from.line});
|
|
|
},
|
|
|
deleteLine: function(cm) {var l = cm.getCursor().line; cm.replaceRange("", {line: l, ch: 0}, {line: l});},
|
|
|
undo: function(cm) {cm.undo();},
|
|
|
redo: function(cm) {cm.redo();},
|
|
|
goDocStart: function(cm) {cm.setCursor(0, 0, true);},
|
|
|
goDocEnd: function(cm) {cm.setSelection({line: cm.lineCount() - 1}, null, true);},
|
|
|
goLineStart: function(cm) {cm.setCursor(cm.getCursor().line, 0, true);},
|
|
|
goLineStartSmart: function(cm) {
|
|
|
var cur = cm.getCursor();
|
|
|
var text = cm.getLine(cur.line), firstNonWS = Math.max(0, text.search(/\S/));
|
|
|
cm.setCursor(cur.line, cur.ch <= firstNonWS && cur.ch ? 0 : firstNonWS, true);
|
|
|
},
|
|
|
goLineEnd: function(cm) {cm.setSelection({line: cm.getCursor().line}, null, true);},
|
|
|
goLineUp: function(cm) {cm.moveV(-1, "line");},
|
|
|
goLineDown: function(cm) {cm.moveV(1, "line");},
|
|
|
goPageUp: function(cm) {cm.moveV(-1, "page");},
|
|
|
goPageDown: function(cm) {cm.moveV(1, "page");},
|
|
|
goCharLeft: function(cm) {cm.moveH(-1, "char");},
|
|
|
goCharRight: function(cm) {cm.moveH(1, "char");},
|
|
|
goColumnLeft: function(cm) {cm.moveH(-1, "column");},
|
|
|
goColumnRight: function(cm) {cm.moveH(1, "column");},
|
|
|
goWordLeft: function(cm) {cm.moveH(-1, "word");},
|
|
|
goWordRight: function(cm) {cm.moveH(1, "word");},
|
|
|
delCharLeft: function(cm) {cm.deleteH(-1, "char");},
|
|
|
delCharRight: function(cm) {cm.deleteH(1, "char");},
|
|
|
delWordLeft: function(cm) {cm.deleteH(-1, "word");},
|
|
|
delWordRight: function(cm) {cm.deleteH(1, "word");},
|
|
|
indentAuto: function(cm) {cm.indentSelection("smart");},
|
|
|
indentMore: function(cm) {cm.indentSelection("add");},
|
|
|
indentLess: function(cm) {cm.indentSelection("subtract");},
|
|
|
insertTab: function(cm) {cm.replaceSelection("\t", "end");},
|
|
|
defaultTab: function(cm) {
|
|
|
if (cm.somethingSelected()) cm.indentSelection("add");
|
|
|
else cm.replaceSelection("\t", "end");
|
|
|
},
|
|
|
transposeChars: function(cm) {
|
|
|
var cur = cm.getCursor(), line = cm.getLine(cur.line);
|
|
|
if (cur.ch > 0 && cur.ch < line.length - 1)
|
|
|
cm.replaceRange(line.charAt(cur.ch) + line.charAt(cur.ch - 1),
|
|
|
{line: cur.line, ch: cur.ch - 1}, {line: cur.line, ch: cur.ch + 1});
|
|
|
},
|
|
|
newlineAndIndent: function(cm) {
|
|
|
cm.replaceSelection("\n", "end");
|
|
|
cm.indentLine(cm.getCursor().line);
|
|
|
},
|
|
|
toggleOverwrite: function(cm) {cm.toggleOverwrite();}
|
|
|
};
|
|
|
|
|
|
var keyMap = CodeMirror.keyMap = {};
|
|
|
keyMap.basic = {
|
|
|
"Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
|
|
|
"End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
|
|
|
"Delete": "delCharRight", "Backspace": "delCharLeft", "Tab": "defaultTab", "Shift-Tab": "indentAuto",
|
|
|
"Enter": "newlineAndIndent", "Insert": "toggleOverwrite"
|
|
|
};
|
|
|
// Note that the save and find-related commands aren't defined by
|
|
|
// default. Unknown commands are simply ignored.
|
|
|
keyMap.pcDefault = {
|
|
|
"Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
|
|
|
"Ctrl-Home": "goDocStart", "Alt-Up": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Down": "goDocEnd",
|
|
|
"Ctrl-Left": "goWordLeft", "Ctrl-Right": "goWordRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
|
|
|
"Ctrl-Backspace": "delWordLeft", "Ctrl-Delete": "delWordRight", "Ctrl-S": "save", "Ctrl-F": "find",
|
|
|
"Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
|
|
|
"Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
|
|
|
fallthrough: "basic"
|
|
|
};
|
|
|
keyMap.macDefault = {
|
|
|
"Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
|
|
|
"Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goWordLeft",
|
|
|
"Alt-Right": "goWordRight", "Cmd-Left": "goLineStart", "Cmd-Right": "goLineEnd", "Alt-Backspace": "delWordLeft",
|
|
|
"Ctrl-Alt-Backspace": "delWordRight", "Alt-Delete": "delWordRight", "Cmd-S": "save", "Cmd-F": "find",
|
|
|
"Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
|
|
|
"Cmd-[": "indentLess", "Cmd-]": "indentMore",
|
|
|
fallthrough: ["basic", "emacsy"]
|
|
|
};
|
|
|
keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;
|
|
|
keyMap.emacsy = {
|
|
|
"Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
|
|
|
"Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
|
|
|
"Ctrl-V": "goPageUp", "Shift-Ctrl-V": "goPageDown", "Ctrl-D": "delCharRight", "Ctrl-H": "delCharLeft",
|
|
|
"Alt-D": "delWordRight", "Alt-Backspace": "delWordLeft", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars"
|
|
|
};
|
|
|
|
|
|
function getKeyMap(val) {
|
|
|
if (typeof val == "string") return keyMap[val];
|
|
|
else return val;
|
|
|
}
|
|
|
function lookupKey(name, extraMap, map, handle, stop) {
|
|
|
function lookup(map) {
|
|
|
map = getKeyMap(map);
|
|
|
var found = map[name];
|
|
|
if (found != null && handle(found)) return true;
|
|
|
if (map.nofallthrough) {
|
|
|
if (stop) stop();
|
|
|
return true;
|
|
|
}
|
|
|
var fallthrough = map.fallthrough;
|
|
|
if (fallthrough == null) return false;
|
|
|
if (Object.prototype.toString.call(fallthrough) != "[object Array]")
|
|
|
return lookup(fallthrough);
|
|
|
for (var i = 0, e = fallthrough.length; i < e; ++i) {
|
|
|
if (lookup(fallthrough[i])) return true;
|
|
|
}
|
|
|
return false;
|
|
|
}
|
|
|
if (extraMap && lookup(extraMap)) return true;
|
|
|
return lookup(map);
|
|
|
}
|
|
|
function isModifierKey(event) {
|
|
|
var name = keyNames[e_prop(event, "keyCode")];
|
|
|
return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod";
|
|
|
}
|
|
|
|
|
|
CodeMirror.fromTextArea = function(textarea, options) {
|
|
|
if (!options) options = {};
|
|
|
options.value = textarea.value;
|
|
|
if (!options.tabindex && textarea.tabindex)
|
|
|
options.tabindex = textarea.tabindex;
|
|
|
if (options.autofocus == null && textarea.getAttribute("autofocus") != null)
|
|
|
options.autofocus = true;
|
|
|
|
|
|
function save() {textarea.value = instance.getValue();}
|
|
|
if (textarea.form) {
|
|
|
// Deplorable hack to make the submit method do the right thing.
|
|
|
var rmSubmit = connect(textarea.form, "submit", save, true);
|
|
|
if (typeof textarea.form.submit == "function") {
|
|
|
var realSubmit = textarea.form.submit;
|
|
|
function wrappedSubmit() {
|
|
|
save();
|
|
|
textarea.form.submit = realSubmit;
|
|
|
textarea.form.submit();
|
|
|
textarea.form.submit = wrappedSubmit;
|
|
|
}
|
|
|
textarea.form.submit = wrappedSubmit;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
textarea.style.display = "none";
|
|
|
var instance = CodeMirror(function(node) {
|
|
|
textarea.parentNode.insertBefore(node, textarea.nextSibling);
|
|
|
}, options);
|
|
|
instance.save = save;
|
|
|
instance.getTextArea = function() { return textarea; };
|
|
|
instance.toTextArea = function() {
|
|
|
save();
|
|
|
textarea.parentNode.removeChild(instance.getWrapperElement());
|
|
|
textarea.style.display = "";
|
|
|
if (textarea.form) {
|
|
|
rmSubmit();
|
|
|
if (typeof textarea.form.submit == "function")
|
|
|
textarea.form.submit = realSubmit;
|
|
|
}
|
|
|
};
|
|
|
return instance;
|
|
|
};
|
|
|
|
|
|
// Utility functions for working with state. Exported because modes
|
|
|
// sometimes need to do this.
|
|
|
function copyState(mode, state) {
|
|
|
if (state === true) return state;
|
|
|
if (mode.copyState) return mode.copyState(state);
|
|
|
var nstate = {};
|
|
|
for (var n in state) {
|
|
|
var val = state[n];
|
|
|
if (val instanceof Array) val = val.concat([]);
|
|
|
nstate[n] = val;
|
|
|
}
|
|
|
return nstate;
|
|
|
}
|
|
|
CodeMirror.copyState = copyState;
|
|
|
function startState(mode, a1, a2) {
|
|
|
return mode.startState ? mode.startState(a1, a2) : true;
|
|
|
}
|
|
|
CodeMirror.startState = startState;
|
|
|
|
|
|
// The character stream used by a mode's parser.
|
|
|
function StringStream(string, tabSize) {
|
|
|
this.pos = this.start = 0;
|
|
|
this.string = string;
|
|
|
this.tabSize = tabSize || 8;
|
|
|
}
|
|
|
StringStream.prototype = {
|
|
|
eol: function() {return this.pos >= this.string.length;},
|
|
|
sol: function() {return this.pos == 0;},
|
|
|
peek: function() {return this.string.charAt(this.pos);},
|
|
|
next: function() {
|
|
|
if (this.pos < this.string.length)
|
|
|
return this.string.charAt(this.pos++);
|
|
|
},
|
|
|
eat: function(match) {
|
|
|
var ch = this.string.charAt(this.pos);
|
|
|
if (typeof match == "string") var ok = ch == match;
|
|
|
else var ok = ch && (match.test ? match.test(ch) : match(ch));
|
|
|
if (ok) {++this.pos; return ch;}
|
|
|
},
|
|
|
eatWhile: function(match) {
|
|
|
var start = this.pos;
|
|
|
while (this.eat(match)){}
|
|
|
return this.pos > start;
|
|
|
},
|
|
|
eatSpace: function() {
|
|
|
var start = this.pos;
|
|
|
while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos;
|
|
|
return this.pos > start;
|
|
|
},
|
|
|
skipToEnd: function() {this.pos = this.string.length;},
|
|
|
skipTo: function(ch) {
|
|
|
var found = this.string.indexOf(ch, this.pos);
|
|
|
if (found > -1) {this.pos = found; return true;}
|
|
|
},
|
|
|
backUp: function(n) {this.pos -= n;},
|
|
|
column: function() {return countColumn(this.string, this.start, this.tabSize);},
|
|
|
indentation: function() {return countColumn(this.string, null, this.tabSize);},
|
|
|
match: function(pattern, consume, caseInsensitive) {
|
|
|
if (typeof pattern == "string") {
|
|
|
function cased(str) {return caseInsensitive ? str.toLowerCase() : str;}
|
|
|
if (cased(this.string).indexOf(cased(pattern), this.pos) == this.pos) {
|
|
|
if (consume !== false) this.pos += pattern.length;
|
|
|
return true;
|
|
|
}
|
|
|
} else {
|
|
|
var match = this.string.slice(this.pos).match(pattern);
|
|
|
if (match && consume !== false) this.pos += match[0].length;
|
|
|
return match;
|
|
|
}
|
|
|
},
|
|
|
current: function(){return this.string.slice(this.start, this.pos);}
|
|
|
};
|
|
|
CodeMirror.StringStream = StringStream;
|
|
|
|
|
|
function MarkedText(from, to, className, marker) {
|
|
|
this.from = from; this.to = to; this.style = className; this.marker = marker;
|
|
|
}
|
|
|
MarkedText.prototype = {
|
|
|
attach: function(line) { this.marker.set.push(line); },
|
|
|
detach: function(line) {
|
|
|
var ix = indexOf(this.marker.set, line);
|
|
|
if (ix > -1) this.marker.set.splice(ix, 1);
|
|
|
},
|
|
|
split: function(pos, lenBefore) {
|
|
|
if (this.to <= pos && this.to != null) return null;
|
|
|
var from = this.from < pos || this.from == null ? null : this.from - pos + lenBefore;
|
|
|
var to = this.to == null ? null : this.to - pos + lenBefore;
|
|
|
return new MarkedText(from, to, this.style, this.marker);
|
|
|
},
|
|
|
dup: function() { return new MarkedText(null, null, this.style, this.marker); },
|
|
|
clipTo: function(fromOpen, from, toOpen, to, diff) {
|
|
|
if (fromOpen && to > this.from && (to < this.to || this.to == null))
|
|
|
this.from = null;
|
|
|
else if (this.from != null && this.from >= from)
|
|
|
this.from = Math.max(to, this.from) + diff;
|
|
|
if (toOpen && (from < this.to || this.to == null) && (from > this.from || this.from == null))
|
|
|
this.to = null;
|
|
|
else if (this.to != null && this.to > from)
|
|
|
this.to = to < this.to ? this.to + diff : from;
|
|
|
},
|
|
|
isDead: function() { return this.from != null && this.to != null && this.from >= this.to; },
|
|
|
sameSet: function(x) { return this.marker == x.marker; }
|
|
|
};
|
|
|
|
|
|
function Bookmark(pos) {
|
|
|
this.from = pos; this.to = pos; this.line = null;
|
|
|
}
|
|
|
Bookmark.prototype = {
|
|
|
attach: function(line) { this.line = line; },
|
|
|
detach: function(line) { if (this.line == line) this.line = null; },
|
|
|
split: function(pos, lenBefore) {
|
|
|
if (pos < this.from) {
|
|
|
this.from = this.to = (this.from - pos) + lenBefore;
|
|
|
return this;
|
|
|
}
|
|
|
},
|
|
|
isDead: function() { return this.from > this.to; },
|
|
|
clipTo: function(fromOpen, from, toOpen, to, diff) {
|
|
|
if ((fromOpen || from < this.from) && (toOpen || to > this.to)) {
|
|
|
this.from = 0; this.to = -1;
|
|
|
} else if (this.from > from) {
|
|
|
this.from = this.to = Math.max(to, this.from) + diff;
|
|
|
}
|
|
|
},
|
|
|
sameSet: function(x) { return false; },
|
|
|
find: function() {
|
|
|
if (!this.line || !this.line.parent) return null;
|
|
|
return {line: lineNo(this.line), ch: this.from};
|
|
|
},
|
|
|
clear: function() {
|
|
|
if (this.line) {
|
|
|
var found = indexOf(this.line.marked, this);
|
|
|
if (found != -1) this.line.marked.splice(found, 1);
|
|
|
this.line = null;
|
|
|
}
|
|
|
}
|
|
|
};
|
|
|
|
|
|
// Line objects. These hold state related to a line, including
|
|
|
// highlighting info (the styles array).
|
|
|
function Line(text, styles) {
|
|
|
this.styles = styles || [text, null];
|
|
|
this.text = text;
|
|
|
this.height = 1;
|
|
|
this.marked = this.gutterMarker = this.className = this.bgClassName = this.handlers = null;
|
|
|
this.stateAfter = this.parent = this.hidden = null;
|
|
|
}
|
|
|
Line.inheritMarks = function(text, orig) {
|
|
|
var ln = new Line(text), mk = orig && orig.marked;
|
|
|
if (mk) {
|
|
|
for (var i = 0; i < mk.length; ++i) {
|
|
|
if (mk[i].to == null && mk[i].style) {
|
|
|
var newmk = ln.marked || (ln.marked = []), mark = mk[i];
|
|
|
var nmark = mark.dup(); newmk.push(nmark); nmark.attach(ln);
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
return ln;
|
|
|
}
|
|
|
Line.prototype = {
|
|
|
// Replace a piece of a line, keeping the styles around it intact.
|
|
|
replace: function(from, to_, text) {
|
|
|
var st = [], mk = this.marked, to = to_ == null ? this.text.length : to_;
|
|
|
copyStyles(0, from, this.styles, st);
|
|
|
if (text) st.push(text, null);
|
|
|
copyStyles(to, this.text.length, this.styles, st);
|
|
|
this.styles = st;
|
|
|
this.text = this.text.slice(0, from) + text + this.text.slice(to);
|
|
|
this.stateAfter = null;
|
|
|
if (mk) {
|
|
|
var diff = text.length - (to - from);
|
|
|
for (var i = 0; i < mk.length; ++i) {
|
|
|
var mark = mk[i];
|
|
|
mark.clipTo(from == null, from || 0, to_ == null, to, diff);
|
|
|
if (mark.isDead()) {mark.detach(this); mk.splice(i--, 1);}
|
|
|
}
|
|
|
}
|
|
|
},
|
|
|
// Split a part off a line, keeping styles and markers intact.
|
|
|
split: function(pos, textBefore) {
|
|
|
var st = [textBefore, null], mk = this.marked;
|
|
|
copyStyles(pos, this.text.length, this.styles, st);
|
|
|
var taken = new Line(textBefore + this.text.slice(pos), st);
|
|
|
if (mk) {
|
|
|
for (var i = 0; i < mk.length; ++i) {
|
|
|
var mark = mk[i];
|
|
|
var newmark = mark.split(pos, textBefore.length);
|
|
|
if (newmark) {
|
|
|
if (!taken.marked) taken.marked = [];
|
|
|
taken.marked.push(newmark); newmark.attach(taken);
|
|
|
if (newmark == mark) mk.splice(i--, 1);
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
return taken;
|
|
|
},
|
|
|
append: function(line) {
|
|
|
var mylen = this.text.length, mk = line.marked, mymk = this.marked;
|
|
|
this.text += line.text;
|
|
|
copyStyles(0, line.text.length, line.styles, this.styles);
|
|
|
if (mymk) {
|
|
|
for (var i = 0; i < mymk.length; ++i)
|
|
|
if (mymk[i].to == null) mymk[i].to = mylen;
|
|
|
}
|
|
|
if (mk && mk.length) {
|
|
|
if (!mymk) this.marked = mymk = [];
|
|
|
outer: for (var i = 0; i < mk.length; ++i) {
|
|
|
var mark = mk[i];
|
|
|
if (!mark.from) {
|
|
|
for (var j = 0; j < mymk.length; ++j) {
|
|
|
var mymark = mymk[j];
|
|
|
if (mymark.to == mylen && mymark.sameSet(mark)) {
|
|
|
mymark.to = mark.to == null ? null : mark.to + mylen;
|
|
|
if (mymark.isDead()) {
|
|
|
mymark.detach(this);
|
|
|
mk.splice(i--, 1);
|
|
|
}
|
|
|
continue outer;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
mymk.push(mark);
|
|
|
mark.attach(this);
|
|
|
mark.from += mylen;
|
|
|
if (mark.to != null) mark.to += mylen;
|
|
|
}
|
|
|
}
|
|
|
},
|
|
|
fixMarkEnds: function(other) {
|
|
|
var mk = this.marked, omk = other.marked;
|
|
|
if (!mk) return;
|
|
|
outer: for (var i = 0; i < mk.length; ++i) {
|
|
|
var mark = mk[i], close = mark.to == null;
|
|
|
if (close && omk) {
|
|
|
for (var j = 0; j < omk.length; ++j) {
|
|
|
var om = omk[j];
|
|
|
if (!om.sameSet(mark) || om.from != null) continue
|
|
|
if (mark.from == this.text.length && om.to == 0) {
|
|
|
omk.splice(j, 1);
|
|
|
mk.splice(i--, 1);
|
|
|
continue outer;
|
|
|
} else {
|
|
|
close = false; break;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
if (close) mark.to = this.text.length;
|
|
|
}
|
|
|
},
|
|
|
fixMarkStarts: function() {
|
|
|
var mk = this.marked;
|
|
|
if (!mk) return;
|
|
|
for (var i = 0; i < mk.length; ++i)
|
|
|
if (mk[i].from == null) mk[i].from = 0;
|
|
|
},
|
|
|
addMark: function(mark) {
|
|
|
mark.attach(this);
|
|
|
if (this.marked == null) this.marked = [];
|
|
|
this.marked.push(mark);
|
|
|
this.marked.sort(function(a, b){return (a.from || 0) - (b.from || 0);});
|
|
|
},
|
|
|
// Run the given mode's parser over a line, update the styles
|
|
|
// array, which contains alternating fragments of text and CSS
|
|
|
// classes.
|
|
|
highlight: function(mode, state, tabSize) {
|
|
|
var stream = new StringStream(this.text, tabSize), st = this.styles, pos = 0;
|
|
|
var changed = false, curWord = st[0], prevWord;
|
|
|
if (this.text == "" && mode.blankLine) mode.blankLine(state);
|
|
|
while (!stream.eol()) {
|
|
|
var style = mode.token(stream, state);
|
|
|
var substr = this.text.slice(stream.start, stream.pos);
|
|
|
stream.start = stream.pos;
|
|
|
if (pos && st[pos-1] == style)
|
|
|
st[pos-2] += substr;
|
|
|
else if (substr) {
|
|
|
if (!changed && (st[pos+1] != style || (pos && st[pos-2] != prevWord))) changed = true;
|
|
|
st[pos++] = substr; st[pos++] = style;
|
|
|
prevWord = curWord; curWord = st[pos];
|
|
|
}
|
|
|
// Give up when line is ridiculously long
|
|
|
if (stream.pos > 5000) {
|
|
|
st[pos++] = this.text.slice(stream.pos); st[pos++] = null;
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
if (st.length != pos) {st.length = pos; changed = true;}
|
|
|
if (pos && st[pos-2] != prevWord) changed = true;
|
|
|
// Short lines with simple highlights return null, and are
|
|
|
// counted as changed by the driver because they are likely to
|
|
|
// highlight the same way in various contexts.
|
|
|
return changed || (st.length < 5 && this.text.length < 10 ? null : false);
|
|
|
},
|
|
|
// Fetch the parser token for a given character. Useful for hacks
|
|
|
// that want to inspect the mode state (say, for completion).
|
|
|
getTokenAt: function(mode, state, ch) {
|
|
|
var txt = this.text, stream = new StringStream(txt);
|
|
|
while (stream.pos < ch && !stream.eol()) {
|
|
|
stream.start = stream.pos;
|
|
|
var style = mode.token(stream, state);
|
|
|
}
|
|
|
return {start: stream.start,
|
|
|
end: stream.pos,
|
|
|
string: stream.current(),
|
|
|
className: style || null,
|
|
|
state: state};
|
|
|
},
|
|
|
indentation: function(tabSize) {return countColumn(this.text, null, tabSize);},
|
|
|
// Produces an HTML fragment for the line, taking selection,
|
|
|
// marking, and highlighting into account.
|
|
|
getHTML: function(makeTab, wrapAt, wrapId, wrapWBR) {
|
|
|
var html = [], first = true, col = 0;
|
|
|
function span_(text, style) {
|
|
|
if (!text) return;
|
|
|
// Work around a bug where, in some compat modes, IE ignores leading spaces
|
|
|
if (first && ie && text.charAt(0) == " ") text = "\u00a0" + text.slice(1);
|
|
|
first = false;
|
|
|
if (text.indexOf("\t") == -1) {
|
|
|
col += text.length;
|
|
|
var escaped = htmlEscape(text);
|
|
|
} else {
|
|
|
var escaped = "";
|
|
|
for (var pos = 0;;) {
|
|
|
var idx = text.indexOf("\t", pos);
|
|
|
if (idx == -1) {
|
|
|
escaped += htmlEscape(text.slice(pos));
|
|
|
col += text.length - pos;
|
|
|
break;
|
|
|
} else {
|
|
|
col += idx - pos;
|
|
|
var tab = makeTab(col);
|
|
|
escaped += htmlEscape(text.slice(pos, idx)) + tab.html;
|
|
|
col += tab.width;
|
|
|
pos = idx + 1;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
if (style) html.push('<span class="', style, '">', escaped, "</span>");
|
|
|
else html.push(escaped);
|
|
|
}
|
|
|
var span = span_;
|
|
|
if (wrapAt != null) {
|
|
|
var outPos = 0, open = "<span id=\"" + wrapId + "\">";
|
|
|
span = function(text, style) {
|
|
|
var l = text.length;
|
|
|
if (wrapAt >= outPos && wrapAt < outPos + l) {
|
|
|
if (wrapAt > outPos) {
|
|
|
span_(text.slice(0, wrapAt - outPos), style);
|
|
|
// See comment at the definition of spanAffectsWrapping
|
|
|
if (wrapWBR) html.push("<wbr>");
|
|
|
}
|
|
|
html.push(open);
|
|
|
var cut = wrapAt - outPos;
|
|
|
span_(opera ? text.slice(cut, cut + 1) : text.slice(cut), style);
|
|
|
html.push("</span>");
|
|
|
if (opera) span_(text.slice(cut + 1), style);
|
|
|
wrapAt--;
|
|
|
outPos += l;
|
|
|
} else {
|
|
|
outPos += l;
|
|
|
span_(text, style);
|
|
|
// Output empty wrapper when at end of line
|
|
|
// (Gecko and IE8+ do strange wrapping when adding a space
|
|
|
// to the end of the line. Other browsers don't react well
|
|
|
// to zero-width spaces. So we do hideous browser sniffing
|
|
|
// to determine which to use.)
|
|
|
if (outPos == wrapAt && outPos == len)
|
|
|
html.push(open + (gecko || (ie && !ie_lt8) ? "​" : " ") + "</span>");
|
|
|
// Stop outputting HTML when gone sufficiently far beyond measure
|
|
|
else if (outPos > wrapAt + 10 && /\s/.test(text)) span = function(){};
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
var st = this.styles, allText = this.text, marked = this.marked;
|
|
|
var len = allText.length;
|
|
|
function styleToClass(style) {
|
|
|
if (!style) return null;
|
|
|
return "cm-" + style.replace(/ +/g, " cm-");
|
|
|
}
|
|
|
|
|
|
if (!allText && wrapAt == null) {
|
|
|
span(" ");
|
|
|
} else if (!marked || !marked.length) {
|
|
|
for (var i = 0, ch = 0; ch < len; i+=2) {
|
|
|
var str = st[i], style = st[i+1], l = str.length;
|
|
|
if (ch + l > len) str = str.slice(0, len - ch);
|
|
|
ch += l;
|
|
|
span(str, styleToClass(style));
|
|
|
}
|
|
|
} else {
|
|
|
var pos = 0, i = 0, text = "", style, sg = 0;
|
|
|
var nextChange = marked[0].from || 0, marks = [], markpos = 0;
|
|
|
function advanceMarks() {
|
|
|
var m;
|
|
|
while (markpos < marked.length &&
|
|
|
((m = marked[markpos]).from == pos || m.from == null)) {
|
|
|
if (m.style != null) marks.push(m);
|
|
|
++markpos;
|
|
|
}
|
|
|
nextChange = markpos < marked.length ? marked[markpos].from : Infinity;
|
|
|
for (var i = 0; i < marks.length; ++i) {
|
|
|
var to = marks[i].to;
|
|
|
if (to == null) to = Infinity;
|
|
|
if (to == pos) marks.splice(i--, 1);
|
|
|
else nextChange = Math.min(to, nextChange);
|
|
|
}
|
|
|
}
|
|
|
var m = 0;
|
|
|
while (pos < len) {
|
|
|
if (nextChange == pos) advanceMarks();
|
|
|
var upto = Math.min(len, nextChange);
|
|
|
while (true) {
|
|
|
if (text) {
|
|
|
var end = pos + text.length;
|
|
|
var appliedStyle = style;
|
|
|
for (var j = 0; j < marks.length; ++j)
|
|
|
appliedStyle = (appliedStyle ? appliedStyle + " " : "") + marks[j].style;
|
|
|
span(end > upto ? text.slice(0, upto - pos) : text, appliedStyle);
|
|
|
if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;}
|
|
|
pos = end;
|
|
|
}
|
|
|
text = st[i++]; style = styleToClass(st[i++]);
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
return html.join("");
|
|
|
},
|
|
|
cleanUp: function() {
|
|
|
this.parent = null;
|
|
|
if (this.marked)
|
|
|
for (var i = 0, e = this.marked.length; i < e; ++i) this.marked[i].detach(this);
|
|
|
}
|
|
|
};
|
|
|
// Utility used by replace and split above
|
|
|
function copyStyles(from, to, source, dest) {
|
|
|
for (var i = 0, pos = 0, state = 0; pos < to; i+=2) {
|
|
|
var part = source[i], end = pos + part.length;
|
|
|
if (state == 0) {
|
|
|
if (end > from) dest.push(part.slice(from - pos, Math.min(part.length, to - pos)), source[i+1]);
|
|
|
if (end >= from) state = 1;
|
|
|
} else if (state == 1) {
|
|
|
if (end > to) dest.push(part.slice(0, to - pos), source[i+1]);
|
|
|
else dest.push(part, source[i+1]);
|
|
|
}
|
|
|
pos = end;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// Data structure that holds the sequence of lines.
|
|
|
function LeafChunk(lines) {
|
|
|
this.lines = lines;
|
|
|
this.parent = null;
|
|
|
for (var i = 0, e = lines.length, height = 0; i < e; ++i) {
|
|
|
lines[i].parent = this;
|
|
|
height += lines[i].height;
|
|
|
}
|
|
|
this.height = height;
|
|
|
}
|
|
|
LeafChunk.prototype = {
|
|
|
chunkSize: function() { return this.lines.length; },
|
|
|
remove: function(at, n, callbacks) {
|
|
|
for (var i = at, e = at + n; i < e; ++i) {
|
|
|
var line = this.lines[i];
|
|
|
this.height -= line.height;
|
|
|
line.cleanUp();
|
|
|
if (line.handlers)
|
|
|
for (var j = 0; j < line.handlers.length; ++j) callbacks.push(line.handlers[j]);
|
|
|
}
|
|
|
this.lines.splice(at, n);
|
|
|
},
|
|
|
collapse: function(lines) {
|
|
|
lines.splice.apply(lines, [lines.length, 0].concat(this.lines));
|
|
|
},
|
|
|
insertHeight: function(at, lines, height) {
|
|
|
this.height += height;
|
|
|
this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
|
|
|
for (var i = 0, e = lines.length; i < e; ++i) lines[i].parent = this;
|
|
|
},
|
|
|
iterN: function(at, n, op) {
|
|
|
for (var e = at + n; at < e; ++at)
|
|
|
if (op(this.lines[at])) return true;
|
|
|
}
|
|
|
};
|
|
|
function BranchChunk(children) {
|
|
|
this.children = children;
|
|
|
var size = 0, height = 0;
|
|
|
for (var i = 0, e = children.length; i < e; ++i) {
|
|
|
var ch = children[i];
|
|
|
size += ch.chunkSize(); height += ch.height;
|
|
|
ch.parent = this;
|
|
|
}
|
|
|
this.size = size;
|
|
|
this.height = height;
|
|
|
this.parent = null;
|
|
|
}
|
|
|
BranchChunk.prototype = {
|
|
|
chunkSize: function() { return this.size; },
|
|
|
remove: function(at, n, callbacks) {
|
|
|
this.size -= n;
|
|
|
for (var i = 0; i < this.children.length; ++i) {
|
|
|
var child = this.children[i], sz = child.chunkSize();
|
|
|
if (at < sz) {
|
|
|
var rm = Math.min(n, sz - at), oldHeight = child.height;
|
|
|
child.remove(at, rm, callbacks);
|
|
|
this.height -= oldHeight - child.height;
|
|
|
if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }
|
|
|
if ((n -= rm) == 0) break;
|
|
|
at = 0;
|
|
|
} else at -= sz;
|
|
|
}
|
|
|
if (this.size - n < 25) {
|
|
|
var lines = [];
|
|
|
this.collapse(lines);
|
|
|
this.children = [new LeafChunk(lines)];
|
|
|
this.children[0].parent = this;
|
|
|
}
|
|
|
},
|
|
|
collapse: function(lines) {
|
|
|
for (var i = 0, e = this.children.length; i < e; ++i) this.children[i].collapse(lines);
|
|
|
},
|
|
|
insert: function(at, lines) {
|
|
|
var height = 0;
|
|
|
for (var i = 0, e = lines.length; i < e; ++i) height += lines[i].height;
|
|
|
this.insertHeight(at, lines, height);
|
|
|
},
|
|
|
insertHeight: function(at, lines, height) {
|
|
|
this.size += lines.length;
|
|
|
this.height += height;
|
|
|
for (var i = 0, e = this.children.length; i < e; ++i) {
|
|
|
var child = this.children[i], sz = child.chunkSize();
|
|
|
if (at <= sz) {
|
|
|
child.insertHeight(at, lines, height);
|
|
|
if (child.lines && child.lines.length > 50) {
|
|
|
while (child.lines.length > 50) {
|
|
|
var spilled = child.lines.splice(child.lines.length - 25, 25);
|
|
|
var newleaf = new LeafChunk(spilled);
|
|
|
child.height -= newleaf.height;
|
|
|
this.children.splice(i + 1, 0, newleaf);
|
|
|
newleaf.parent = this;
|
|
|
}
|
|
|
this.maybeSpill();
|
|
|
}
|
|
|
break;
|
|
|
}
|
|
|
at -= sz;
|
|
|
}
|
|
|
},
|
|
|
maybeSpill: function() {
|
|
|
if (this.children.length <= 10) return;
|
|
|
var me = this;
|
|
|
do {
|
|
|
var spilled = me.children.splice(me.children.length - 5, 5);
|
|
|
var sibling = new BranchChunk(spilled);
|
|
|
if (!me.parent) { // Become the parent node
|
|
|
var copy = new BranchChunk(me.children);
|
|
|
copy.parent = me;
|
|
|
me.children = [copy, sibling];
|
|
|
me = copy;
|
|
|
} else {
|
|
|
me.size -= sibling.size;
|
|
|
me.height -= sibling.height;
|
|
|
var myIndex = indexOf(me.parent.children, me);
|
|
|
me.parent.children.splice(myIndex + 1, 0, sibling);
|
|
|
}
|
|
|
sibling.parent = me.parent;
|
|
|
} while (me.children.length > 10);
|
|
|
me.parent.maybeSpill();
|
|
|
},
|
|
|
iter: function(from, to, op) { this.iterN(from, to - from, op); },
|
|
|
iterN: function(at, n, op) {
|
|
|
for (var i = 0, e = this.children.length; i < e; ++i) {
|
|
|
var child = this.children[i], sz = child.chunkSize();
|
|
|
if (at < sz) {
|
|
|
var used = Math.min(n, sz - at);
|
|
|
if (child.iterN(at, used, op)) return true;
|
|
|
if ((n -= used) == 0) break;
|
|
|
at = 0;
|
|
|
} else at -= sz;
|
|
|
}
|
|
|
}
|
|
|
};
|
|
|
|
|
|
function getLineAt(chunk, n) {
|
|
|
while (!chunk.lines) {
|
|
|
for (var i = 0;; ++i) {
|
|
|
var child = chunk.children[i], sz = child.chunkSize();
|
|
|
if (n < sz) { chunk = child; break; }
|
|
|
n -= sz;
|
|
|
}
|
|
|
}
|
|
|
return chunk.lines[n];
|
|
|
}
|
|
|
function lineNo(line) {
|
|
|
if (line.parent == null) return null;
|
|
|
var cur = line.parent, no = indexOf(cur.lines, line);
|
|
|
for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
|
|
|
for (var i = 0, e = chunk.children.length; ; ++i) {
|
|
|
if (chunk.children[i] == cur) break;
|
|
|
no += chunk.children[i].chunkSize();
|
|
|
}
|
|
|
}
|
|
|
return no;
|
|
|
}
|
|
|
function lineAtHeight(chunk, h) {
|
|
|
var n = 0;
|
|
|
outer: do {
|
|
|
for (var i = 0, e = chunk.children.length; i < e; ++i) {
|
|
|
var child = chunk.children[i], ch = child.height;
|
|
|
if (h < ch) { chunk = child; continue outer; }
|
|
|
h -= ch;
|
|
|
n += child.chunkSize();
|
|
|
}
|
|
|
return n;
|
|
|
} while (!chunk.lines);
|
|
|
for (var i = 0, e = chunk.lines.length; i < e; ++i) {
|
|
|
var line = chunk.lines[i], lh = line.height;
|
|
|
if (h < lh) break;
|
|
|
h -= lh;
|
|
|
}
|
|
|
return n + i;
|
|
|
}
|
|
|
function heightAtLine(chunk, n) {
|
|
|
var h = 0;
|
|
|
outer: do {
|
|
|
for (var i = 0, e = chunk.children.length; i < e; ++i) {
|
|
|
var child = chunk.children[i], sz = child.chunkSize();
|
|
|
if (n < sz) { chunk = child; continue outer; }
|
|
|
n -= sz;
|
|
|
h += child.height;
|
|
|
}
|
|
|
return h;
|
|
|
} while (!chunk.lines);
|
|
|
for (var i = 0; i < n; ++i) h += chunk.lines[i].height;
|
|
|
return h;
|
|
|
}
|
|
|
|
|
|
// The history object 'chunks' changes that are made close together
|
|
|
// and at almost the same time into bigger undoable units.
|
|
|
function History() {
|
|
|
this.time = 0;
|
|
|
this.done = []; this.undone = [];
|
|
|
this.compound = 0;
|
|
|
this.closed = false;
|
|
|
}
|
|
|
History.prototype = {
|
|
|
addChange: function(start, added, old) {
|
|
|
this.undone.length = 0;
|
|
|
var time = +new Date, cur = this.done[this.done.length - 1], last = cur && cur[cur.length - 1];
|
|
|
var dtime = time - this.time;
|
|
|
|
|
|
if (this.compound && cur && !this.closed) {
|
|
|
cur.push({start: start, added: added, old: old});
|
|
|
} else if (dtime > 400 || !last || this.closed ||
|
|
|
last.start > start + old.length || last.start + last.added < start) {
|
|
|
this.done.push([{start: start, added: added, old: old}]);
|
|
|
this.closed = false;
|
|
|
} else {
|
|
|
var startBefore = Math.max(0, last.start - start),
|
|
|
endAfter = Math.max(0, (start + old.length) - (last.start + last.added));
|
|
|
for (var i = startBefore; i > 0; --i) last.old.unshift(old[i - 1]);
|
|
|
for (var i = endAfter; i > 0; --i) last.old.push(old[old.length - i]);
|
|
|
if (startBefore) last.start = start;
|
|
|
last.added += added - (old.length - startBefore - endAfter);
|
|
|
}
|
|
|
this.time = time;
|
|
|
},
|
|
|
startCompound: function() {
|
|
|
if (!this.compound++) this.closed = true;
|
|
|
},
|
|
|
endCompound: function() {
|
|
|
if (!--this.compound) this.closed = true;
|
|
|
}
|
|
|
};
|
|
|
|
|
|
function stopMethod() {e_stop(this);}
|
|
|
// Ensure an event has a stop method.
|
|
|
function addStop(event) {
|
|
|
if (!event.stop) event.stop = stopMethod;
|
|
|
return event;
|
|
|
}
|
|
|
|
|
|
function e_preventDefault(e) {
|
|
|
if (e.preventDefault) e.preventDefault();
|
|
|
else e.returnValue = false;
|
|
|
}
|
|
|
function e_stopPropagation(e) {
|
|
|
if (e.stopPropagation) e.stopPropagation();
|
|
|
else e.cancelBubble = true;
|
|
|
}
|
|
|
function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);}
|
|
|
CodeMirror.e_stop = e_stop;
|
|
|
CodeMirror.e_preventDefault = e_preventDefault;
|
|
|
CodeMirror.e_stopPropagation = e_stopPropagation;
|
|
|
|
|
|
function e_target(e) {return e.target || e.srcElement;}
|
|
|
function e_button(e) {
|
|
|
var b = e.which;
|
|
|
if (b == null) {
|
|
|
if (e.button & 1) b = 1;
|
|
|
else if (e.button & 2) b = 3;
|
|
|
else if (e.button & 4) b = 2;
|
|
|
}
|
|
|
if (mac && e.ctrlKey && b == 1) b = 3;
|
|
|
return b;
|
|
|
}
|
|
|
|
|
|
// Allow 3rd-party code to override event properties by adding an override
|
|
|
// object to an event object.
|
|
|
function e_prop(e, prop) {
|
|
|
var overridden = e.override && e.override.hasOwnProperty(prop);
|
|
|
return overridden ? e.override[prop] : e[prop];
|
|
|
}
|
|
|
|
|
|
// Event handler registration. If disconnect is true, it'll return a
|
|
|
// function that unregisters the handler.
|
|
|
function connect(node, type, handler, disconnect) {
|
|
|
if (typeof node.addEventListener == "function") {
|
|
|
node.addEventListener(type, handler, false);
|
|
|
if (disconnect) return function() {node.removeEventListener(type, handler, false);};
|
|
|
} else {
|
|
|
var wrapHandler = function(event) {handler(event || window.event);};
|
|
|
node.attachEvent("on" + type, wrapHandler);
|
|
|
if (disconnect) return function() {node.detachEvent("on" + type, wrapHandler);};
|
|
|
}
|
|
|
}
|
|
|
CodeMirror.connect = connect;
|
|
|
|
|
|
function Delayed() {this.id = null;}
|
|
|
Delayed.prototype = {set: function(ms, f) {clearTimeout(this.id); this.id = setTimeout(f, ms);}};
|
|
|
|
|
|
var Pass = CodeMirror.Pass = {toString: function(){return "CodeMirror.Pass";}};
|
|
|
|
|
|
var gecko = /gecko\/\d{7}/i.test(navigator.userAgent);
|
|
|
var ie = /MSIE \d/.test(navigator.userAgent);
|
|
|
var ie_lt8 = /MSIE [1-7]\b/.test(navigator.userAgent);
|
|
|
var ie_lt9 = /MSIE [1-8]\b/.test(navigator.userAgent);
|
|
|
var quirksMode = ie && document.documentMode == 5;
|
|
|
var webkit = /WebKit\//.test(navigator.userAgent);
|
|
|
var chrome = /Chrome\//.test(navigator.userAgent);
|
|
|
var opera = /Opera\//.test(navigator.userAgent);
|
|
|
var safari = /Apple Computer/.test(navigator.vendor);
|
|
|
var khtml = /KHTML\//.test(navigator.userAgent);
|
|
|
var mac_geLion = /Mac OS X 10\D([7-9]|\d\d)\D/.test(navigator.userAgent);
|
|
|
|
|
|
// Detect drag-and-drop
|
|
|
var dragAndDrop = function() {
|
|
|
// There is *some* kind of drag-and-drop support in IE6-8, but I
|
|
|
// couldn't get it to work yet.
|
|
|
if (ie_lt9) return false;
|
|
|
var div = document.createElement('div');
|
|
|
return "draggable" in div || "dragDrop" in div;
|
|
|
}();
|
|
|
|
|
|
// Feature-detect whether newlines in textareas are converted to \r\n
|
|
|
var lineSep = function () {
|
|
|
var te = document.createElement("textarea");
|
|
|
te.value = "foo\nbar";
|
|
|
if (te.value.indexOf("\r") > -1) return "\r\n";
|
|
|
return "\n";
|
|
|
}();
|
|
|
|
|
|
// For a reason I have yet to figure out, some browsers disallow
|
|
|
// word wrapping between certain characters *only* if a new inline
|
|
|
// element is started between them. This makes it hard to reliably
|
|
|
// measure the position of things, since that requires inserting an
|
|
|
// extra span. This terribly fragile set of regexps matches the
|
|
|
// character combinations that suffer from this phenomenon on the
|
|
|
// various browsers.
|
|
|
var spanAffectsWrapping = /^$/; // Won't match any two-character string
|
|
|
if (gecko) spanAffectsWrapping = /$'/;
|
|
|
else if (safari) spanAffectsWrapping = /\-[^ \-?]|\?[^ !'\"\),.\-\/:;\?\]\}]/;
|
|
|
else if (chrome) spanAffectsWrapping = /\-[^ \-\.?]|\?[^ \-\.?\]\}:;!'\"\),\/]|[\.!\"#&%\)*+,:;=>\]|\}~][\(\{\[<]|\$'/;
|
|
|
|
|
|
// Counts the column offset in a string, taking tabs into account.
|
|
|
// Used mostly to find indentation.
|
|
|
function countColumn(string, end, tabSize) {
|
|
|
if (end == null) {
|
|
|
end = string.search(/[^\s\u00a0]/);
|
|
|
if (end == -1) end = string.length;
|
|
|
}
|
|
|
for (var i = 0, n = 0; i < end; ++i) {
|
|
|
if (string.charAt(i) == "\t") n += tabSize - (n % tabSize);
|
|
|
else ++n;
|
|
|
}
|
|
|
return n;
|
|
|
}
|
|
|
|
|
|
function computedStyle(elt) {
|
|
|
if (elt.currentStyle) return elt.currentStyle;
|
|
|
return window.getComputedStyle(elt, null);
|
|
|
}
|
|
|
|
|
|
function eltOffset(node, screen) {
|
|
|
// Take the parts of bounding client rect that we are interested in so we are able to edit if need be,
|
|
|
// since the returned value cannot be changed externally (they are kept in sync as the element moves within the page)
|
|
|
try { var box = node.getBoundingClientRect(); box = { top: box.top, left: box.left }; }
|
|
|
catch(e) { box = {top: 0, left: 0}; }
|
|
|
if (!screen) {
|
|
|
// Get the toplevel scroll, working around browser differences.
|
|
|
if (window.pageYOffset == null) {
|
|
|
var t = document.documentElement || document.body.parentNode;
|
|
|
if (t.scrollTop == null) t = document.body;
|
|
|
box.top += t.scrollTop; box.left += t.scrollLeft;
|
|
|
} else {
|
|
|
box.top += window.pageYOffset; box.left += window.pageXOffset;
|
|
|
}
|
|
|
}
|
|
|
return box;
|
|
|
}
|
|
|
|
|
|
// Get a node's text content.
|
|
|
function eltText(node) {
|
|
|
return node.textContent || node.innerText || node.nodeValue || "";
|
|
|
}
|
|
|
function selectInput(node) {
|
|
|
if (ios) { // Mobile Safari apparently has a bug where select() is broken.
|
|
|
node.selectionStart = 0;
|
|
|
node.selectionEnd = node.value.length;
|
|
|
} else node.select();
|
|
|
}
|
|
|
|
|
|
// Operations on {line, ch} objects.
|
|
|
function posEq(a, b) {return a.line == b.line && a.ch == b.ch;}
|
|
|
function posLess(a, b) {return a.line < b.line || (a.line == b.line && a.ch < b.ch);}
|
|
|
function copyPos(x) {return {line: x.line, ch: x.ch};}
|
|
|
|
|
|
var escapeElement = document.createElement("pre");
|
|
|
function htmlEscape(str) {
|
|
|
escapeElement.textContent = str;
|
|
|
return escapeElement.innerHTML;
|
|
|
}
|
|
|
// Recent (late 2011) Opera betas insert bogus newlines at the start
|
|
|
// of the textContent, so we strip those.
|
|
|
if (htmlEscape("a") == "\na") {
|
|
|
htmlEscape = function(str) {
|
|
|
escapeElement.textContent = str;
|
|
|
return escapeElement.innerHTML.slice(1);
|
|
|
};
|
|
|
// Some IEs don't preserve tabs through innerHTML
|
|
|
} else if (htmlEscape("\t") != "\t") {
|
|
|
htmlEscape = function(str) {
|
|
|
escapeElement.innerHTML = "";
|
|
|
escapeElement.appendChild(document.createTextNode(str));
|
|
|
return escapeElement.innerHTML;
|
|
|
};
|
|
|
}
|
|
|
CodeMirror.htmlEscape = htmlEscape;
|
|
|
|
|
|
// Used to position the cursor after an undo/redo by finding the
|
|
|
// last edited character.
|
|
|
function editEnd(from, to) {
|
|
|
if (!to) return 0;
|
|
|
if (!from) return to.length;
|
|
|
for (var i = from.length, j = to.length; i >= 0 && j >= 0; --i, --j)
|
|
|
if (from.charAt(i) != to.charAt(j)) break;
|
|
|
return j + 1;
|
|
|
}
|
|
|
|
|
|
function indexOf(collection, elt) {
|
|
|
if (collection.indexOf) return collection.indexOf(elt);
|
|
|
for (var i = 0, e = collection.length; i < e; ++i)
|
|
|
if (collection[i] == elt) return i;
|
|
|
return -1;
|
|
|
}
|
|
|
function isWordChar(ch) {
|
|
|
return /\w/.test(ch) || ch.toUpperCase() != ch.toLowerCase();
|
|
|
}
|
|
|
|
|
|
// See if "".split is the broken IE version, if so, provide an
|
|
|
// alternative way to split lines.
|
|
|
var splitLines = "\n\nb".split(/\n/).length != 3 ? function(string) {
|
|
|
var pos = 0, result = [], l = string.length;
|
|
|
while (pos <= l) {
|
|
|
var nl = string.indexOf("\n", pos);
|
|
|
if (nl == -1) nl = string.length;
|
|
|
var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl);
|
|
|
var rt = line.indexOf("\r");
|
|
|
if (rt != -1) {
|
|
|
result.push(line.slice(0, rt));
|
|
|
pos += rt + 1;
|
|
|
} else {
|
|
|
result.push(line);
|
|
|
pos = nl + 1;
|
|
|
}
|
|
|
}
|
|
|
return result;
|
|
|
} : function(string){return string.split(/\r\n?|\n/);};
|
|
|
CodeMirror.splitLines = splitLines;
|
|
|
|
|
|
var hasSelection = window.getSelection ? function(te) {
|
|
|
try { return te.selectionStart != te.selectionEnd; }
|
|
|
catch(e) { return false; }
|
|
|
} : function(te) {
|
|
|
try {var range = te.ownerDocument.selection.createRange();}
|
|
|
catch(e) {}
|
|
|
if (!range || range.parentElement() != te) return false;
|
|
|
return range.compareEndPoints("StartToEnd", range) != 0;
|
|
|
};
|
|
|
|
|
|
CodeMirror.defineMode("null", function() {
|
|
|
return {token: function(stream) {stream.skipToEnd();}};
|
|
|
});
|
|
|
CodeMirror.defineMIME("text/plain", "null");
|
|
|
|
|
|
var keyNames = {3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
|
|
|
19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
|
|
|
36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
|
|
|
46: "Delete", 59: ";", 91: "Mod", 92: "Mod", 93: "Mod", 109: "-", 107: "=", 127: "Delete",
|
|
|
186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
|
|
|
221: "]", 222: "'", 63276: "PageUp", 63277: "PageDown", 63275: "End", 63273: "Home",
|
|
|
63234: "Left", 63232: "Up", 63235: "Right", 63233: "Down", 63302: "Insert", 63272: "Delete"};
|
|
|
CodeMirror.keyNames = keyNames;
|
|
|
(function() {
|
|
|
// Number keys
|
|
|
for (var i = 0; i < 10; i++) keyNames[i + 48] = String(i);
|
|
|
// Alphabetic keys
|
|
|
for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i);
|
|
|
// Function keys
|
|
|
for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i;
|
|
|
})();
|
|
|
|
|
|
return CodeMirror;
|
|
|
})();
|
|
|
|
