From 3a754133dbc138390503341fd2e9beba3e43aa4b Mon Sep 17 00:00:00 2001
From: Jose Antonio Marquez
Date: Fri, 27 Jan 2012 12:05:17 -0800
Subject: Merged old FileIO
---
imports/codemirror/lib/codemirror.css | 104 +
imports/codemirror/lib/codemirror.js | 2761 ++++++++++++++++++++++++
imports/codemirror/lib/util/dialog.css | 23 +
imports/codemirror/lib/util/dialog.js | 63 +
imports/codemirror/lib/util/foldcode.js | 66 +
imports/codemirror/lib/util/formatting.js | 291 +++
imports/codemirror/lib/util/javascript-hint.js | 83 +
imports/codemirror/lib/util/overlay.js | 51 +
imports/codemirror/lib/util/runmode.js | 27 +
imports/codemirror/lib/util/search.js | 114 +
imports/codemirror/lib/util/searchcursor.js | 117 +
imports/codemirror/lib/util/simple-hint.css | 16 +
imports/codemirror/lib/util/simple-hint.js | 66 +
13 files changed, 3782 insertions(+)
create mode 100755 imports/codemirror/lib/codemirror.css
create mode 100755 imports/codemirror/lib/codemirror.js
create mode 100755 imports/codemirror/lib/util/dialog.css
create mode 100755 imports/codemirror/lib/util/dialog.js
create mode 100755 imports/codemirror/lib/util/foldcode.js
create mode 100755 imports/codemirror/lib/util/formatting.js
create mode 100755 imports/codemirror/lib/util/javascript-hint.js
create mode 100755 imports/codemirror/lib/util/overlay.js
create mode 100755 imports/codemirror/lib/util/runmode.js
create mode 100755 imports/codemirror/lib/util/search.js
create mode 100755 imports/codemirror/lib/util/searchcursor.js
create mode 100755 imports/codemirror/lib/util/simple-hint.css
create mode 100755 imports/codemirror/lib/util/simple-hint.js
(limited to 'imports/codemirror/lib')
diff --git a/imports/codemirror/lib/codemirror.css b/imports/codemirror/lib/codemirror.css
new file mode 100755
index 00000000..11614251
--- /dev/null
+++ b/imports/codemirror/lib/codemirror.css
@@ -0,0 +1,104 @@
+.CodeMirror {
+ line-height: 1em;
+ font-family: monospace;
+}
+
+.CodeMirror-scroll {
+ overflow: auto;
+ height: 300px;
+ /* This is needed to prevent an IE[67] bug where the scrolled content
+ is visible outside of the scrolling box. */
+ position: relative;
+}
+
+.CodeMirror-gutter {
+ position: absolute; left: 0; top: 0;
+ z-index: 10;
+ background-color: #f7f7f7;
+ border-right: 1px solid #eee;
+ min-width: 2em;
+ height: 100%;
+}
+.CodeMirror-gutter-text {
+ color: #aaa;
+ text-align: right;
+ padding: .4em .2em .4em .4em;
+ white-space: pre !important;
+}
+.CodeMirror-lines {
+ padding: .4em;
+}
+
+.CodeMirror pre {
+ -moz-border-radius: 0;
+ -webkit-border-radius: 0;
+ -o-border-radius: 0;
+ border-radius: 0;
+ border-width: 0; margin: 0; padding: 0; background: transparent;
+ font-family: inherit;
+ font-size: inherit;
+ padding: 0; margin: 0;
+ white-space: pre;
+ word-wrap: normal;
+}
+
+.CodeMirror-wrap pre {
+ word-wrap: break-word;
+ white-space: pre-wrap;
+}
+.CodeMirror-wrap .CodeMirror-scroll {
+ overflow-x: hidden;
+}
+
+.CodeMirror textarea {
+ outline: none !important;
+}
+
+.CodeMirror pre.CodeMirror-cursor {
+ z-index: 10;
+ position: absolute;
+ visibility: hidden;
+ border-left: 1px solid black;
+}
+.CodeMirror-focused pre.CodeMirror-cursor {
+ visibility: visible;
+}
+
+span.CodeMirror-selected { background: #d9d9d9; }
+.CodeMirror-focused span.CodeMirror-selected { background: #d2dcf8; }
+
+.CodeMirror-searching {background: #ffa;}
+
+/* Default theme */
+
+.cm-s-default span.cm-keyword {color: #708;}
+.cm-s-default span.cm-atom {color: #219;}
+.cm-s-default span.cm-number {color: #164;}
+.cm-s-default span.cm-def {color: #00f;}
+.cm-s-default span.cm-variable {color: black;}
+.cm-s-default span.cm-variable-2 {color: #05a;}
+.cm-s-default span.cm-variable-3 {color: #085;}
+.cm-s-default span.cm-property {color: black;}
+.cm-s-default span.cm-operator {color: black;}
+.cm-s-default span.cm-comment {color: #a50;}
+.cm-s-default span.cm-string {color: #a11;}
+.cm-s-default span.cm-string-2 {color: #f50;}
+.cm-s-default span.cm-meta {color: #555;}
+.cm-s-default span.cm-error {color: #f00;}
+.cm-s-default span.cm-qualifier {color: #555;}
+.cm-s-default span.cm-builtin {color: #30a;}
+.cm-s-default span.cm-bracket {color: #cc7;}
+.cm-s-default span.cm-tag {color: #170;}
+.cm-s-default span.cm-attribute {color: #00c;}
+.cm-s-default span.cm-header {color: #a0a;}
+.cm-s-default span.cm-quote {color: #090;}
+.cm-s-default span.cm-hr {color: #999;}
+.cm-s-default span.cm-link {color: #00c;}
+
+span.cm-header, span.cm-strong {font-weight: bold;}
+span.cm-em {font-style: italic;}
+span.cm-emstrong {font-style: italic; font-weight: bold;}
+span.cm-link {text-decoration: underline;}
+
+div.CodeMirror span.CodeMirror-matchingbracket {color: #0f0;}
+div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #f22;}
diff --git a/imports/codemirror/lib/codemirror.js b/imports/codemirror/lib/codemirror.js
new file mode 100755
index 00000000..79eb457d
--- /dev/null
+++ b/imports/codemirror/lib/codemirror.js
@@ -0,0 +1,2761 @@
+// CodeMirror version 2.2
+//
+// All functions that need access to the editor's state live inside
+// the CodeMirror function. Below that, at the bottom of the file,
+// some utilities are defined.
+
+// CodeMirror is the only global var we claim
+var CodeMirror = (function() {
+ // This is the function that produces an editor instance. It's
+ // closure is used to store the editor state.
+ function CodeMirror(place, givenOptions) {
+ // Determine effective options based on given values and defaults.
+ var options = {}, defaults = CodeMirror.defaults;
+ for (var opt in defaults)
+ if (defaults.hasOwnProperty(opt))
+ options[opt] = (givenOptions && givenOptions.hasOwnProperty(opt) ? givenOptions : defaults)[opt];
+
+ var targetDocument = options["document"];
+ // The element in which the editor lives.
+ var wrapper = targetDocument.createElement("div");
+ wrapper.className = "CodeMirror" + (options.lineWrapping ? " CodeMirror-wrap" : "");
+ // This mess creates the base DOM structure for the editor.
+ wrapper.innerHTML =
+ '' + // Wraps and hides input textarea
+ '
' +
+ '';
+ if (place.appendChild) place.appendChild(wrapper); else place(wrapper);
+ // I've never seen more elegant code in my life.
+ var inputDiv = wrapper.firstChild, input = inputDiv.firstChild,
+ scroller = wrapper.lastChild, code = scroller.firstChild,
+ mover = code.firstChild, gutter = mover.firstChild, gutterText = gutter.firstChild,
+ lineSpace = gutter.nextSibling.firstChild, measure = lineSpace.firstChild,
+ cursor = measure.nextSibling, lineDiv = cursor.nextSibling;
+ themeChanged();
+ // Needed to hide big blue blinking cursor on Mobile Safari
+ if (/AppleWebKit/.test(navigator.userAgent) && /Mobile\/\w+/.test(navigator.userAgent)) input.style.width = "0px";
+ if (!webkit) lineSpace.draggable = true;
+ if (options.tabindex != null) input.tabIndex = options.tabindex;
+ if (!options.gutter && !options.lineNumbers) gutter.style.display = "none";
+
+ // Check for problem with IE innerHTML not working when we have a
+ // P (or similar) parent node.
+ try { stringWidth("x"); }
+ catch (e) {
+ if (e.message.match(/runtime/i))
+ e = new Error("A CodeMirror inside a P-style element does not work in Internet Explorer. (innerHTML bug)");
+ throw e;
+ }
+
+ // Delayed object wrap timeouts, making sure only one is active. blinker holds an interval.
+ var poll = new Delayed(), highlight = new Delayed(), blinker;
+
+ // mode holds a mode API object. doc is the tree of Line objects,
+ // work an array of lines that should be parsed, and history the
+ // undo history (instance of History constructor).
+ var mode, doc = new BranchChunk([new LeafChunk([new Line("")])]), work, focused;
+ loadMode();
+ // The selection. These are always maintained to point at valid
+ // positions. Inverted is used to remember that the user is
+ // selecting bottom-to-top.
+ var sel = {from: {line: 0, ch: 0}, to: {line: 0, ch: 0}, inverted: false};
+ // Selection-related flags. shiftSelecting obviously tracks
+ // whether the user is holding shift.
+ var shiftSelecting, lastClick, lastDoubleClick, draggingText, overwrite = false;
+ // Variables used by startOperation/endOperation to track what
+ // happened during the operation.
+ var updateInput, userSelChange, changes, textChanged, selectionChanged, leaveInputAlone,
+ gutterDirty, callbacks;
+ // Current visible range (may be bigger than the view window).
+ var displayOffset = 0, showingFrom = 0, showingTo = 0, lastSizeC = 0;
+ // bracketHighlighted is used to remember that a backet has been
+ // marked.
+ var bracketHighlighted;
+ // Tracks the maximum line length so that the horizontal scrollbar
+ // can be kept static when scrolling.
+ var maxLine = "", maxWidth, tabText = computeTabText();
+
+ // Initialize the content.
+ operation(function(){setValue(options.value || ""); updateInput = false;})();
+ var history = new History();
+
+ // Register our event handlers.
+ connect(scroller, "mousedown", operation(onMouseDown));
+ connect(scroller, "dblclick", operation(onDoubleClick));
+ connect(lineSpace, "dragstart", onDragStart);
+ connect(lineSpace, "selectstart", e_preventDefault);
+ // Gecko browsers fire contextmenu *after* opening the menu, at
+ // which point we can't mess with it anymore. Context menu is
+ // handled in onMouseDown for Gecko.
+ if (!gecko) connect(scroller, "contextmenu", onContextMenu);
+ connect(scroller, "scroll", function() {
+ updateDisplay([]);
+ if (options.fixedGutter) gutter.style.left = scroller.scrollLeft + "px";
+ if (options.onScroll) options.onScroll(instance);
+ });
+ connect(window, "resize", function() {updateDisplay(true);});
+ connect(input, "keyup", operation(onKeyUp));
+ connect(input, "input", fastPoll);
+ connect(input, "keydown", operation(onKeyDown));
+ connect(input, "keypress", operation(onKeyPress));
+ connect(input, "focus", onFocus);
+ connect(input, "blur", onBlur);
+
+ connect(scroller, "dragenter", e_stop);
+ connect(scroller, "dragover", e_stop);
+ connect(scroller, "drop", operation(onDrop));
+ connect(scroller, "paste", function(){focusInput(); fastPoll();});
+ connect(input, "paste", fastPoll);
+ connect(input, "cut", operation(function(){replaceSelection("");}));
+
+ // IE throws unspecified error in certain cases, when
+ // trying to access activeElement before onload
+ var hasFocus; try { hasFocus = (targetDocument.activeElement == input); } catch(e) { }
+ if (hasFocus) setTimeout(onFocus, 20);
+ else onBlur();
+
+ function isLine(l) {return l >= 0 && l < doc.size;}
+ // The instance object that we'll return. Mostly calls out to
+ // local functions in the CodeMirror function. Some do some extra
+ // range checking and/or clipping. operation is used to wrap the
+ // call so that changes it makes are tracked, and the display is
+ // updated afterwards.
+ var instance = wrapper.CodeMirror = {
+ getValue: getValue,
+ setValue: operation(setValue),
+ getSelection: getSelection,
+ replaceSelection: operation(replaceSelection),
+ focus: function(){focusInput(); onFocus(); fastPoll();},
+ setOption: function(option, value) {
+ var oldVal = options[option];
+ options[option] = value;
+ if (option == "mode" || option == "indentUnit") loadMode();
+ else if (option == "readOnly" && value) {onBlur(); input.blur();}
+ else if (option == "theme") themeChanged();
+ else if (option == "lineWrapping" && oldVal != value) operation(wrappingChanged)();
+ else if (option == "tabSize") operation(tabsChanged)();
+ if (option == "lineNumbers" || option == "gutter" || option == "firstLineNumber" || option == "theme")
+ operation(gutterChanged)();
+ },
+ getOption: function(option) {return options[option];},
+ undo: operation(undo),
+ redo: operation(redo),
+ indentLine: operation(function(n, dir) {
+ if (isLine(n)) indentLine(n, dir == null ? "smart" : dir ? "add" : "subtract");
+ }),
+ indentSelection: operation(indentSelected),
+ historySize: function() {return {undo: history.done.length, redo: history.undone.length};},
+ clearHistory: function() {history = new History();},
+ matchBrackets: operation(function(){matchBrackets(true);}),
+ getTokenAt: operation(function(pos) {
+ pos = clipPos(pos);
+ return getLine(pos.line).getTokenAt(mode, getStateBefore(pos.line), pos.ch);
+ }),
+ getStateAfter: function(line) {
+ line = clipLine(line == null ? doc.size - 1: line);
+ return getStateBefore(line + 1);
+ },
+ cursorCoords: function(start){
+ if (start == null) start = sel.inverted;
+ return pageCoords(start ? sel.from : sel.to);
+ },
+ charCoords: function(pos){return pageCoords(clipPos(pos));},
+ coordsChar: function(coords) {
+ var off = eltOffset(lineSpace);
+ return coordsChar(coords.x - off.left, coords.y - off.top);
+ },
+ markText: operation(markText),
+ setBookmark: setBookmark,
+ setMarker: operation(addGutterMarker),
+ clearMarker: operation(removeGutterMarker),
+ setLineClass: operation(setLineClass),
+ hideLine: operation(function(h) {return setLineHidden(h, true);}),
+ showLine: operation(function(h) {return setLineHidden(h, false);}),
+ onDeleteLine: function(line, f) {
+ if (typeof line == "number") {
+ if (!isLine(line)) return null;
+ line = getLine(line);
+ }
+ (line.handlers || (line.handlers = [])).push(f);
+ return line;
+ },
+ lineInfo: lineInfo,
+ addWidget: function(pos, node, scroll, vert, horiz) {
+ pos = localCoords(clipPos(pos));
+ var top = pos.yBot, left = pos.x;
+ node.style.position = "absolute";
+ code.appendChild(node);
+ if (vert == "over") top = pos.y;
+ else if (vert == "near") {
+ var vspace = Math.max(scroller.offsetHeight, doc.height * textHeight()),
+ hspace = Math.max(code.clientWidth, lineSpace.clientWidth) - paddingLeft();
+ if (pos.yBot + node.offsetHeight > vspace && pos.y > node.offsetHeight)
+ top = pos.y - node.offsetHeight;
+ if (left + node.offsetWidth > hspace)
+ left = hspace - node.offsetWidth;
+ }
+ node.style.top = (top + paddingTop()) + "px";
+ node.style.left = node.style.right = "";
+ if (horiz == "right") {
+ left = code.clientWidth - node.offsetWidth;
+ node.style.right = "0px";
+ } else {
+ if (horiz == "left") left = 0;
+ else if (horiz == "middle") left = (code.clientWidth - node.offsetWidth) / 2;
+ node.style.left = (left + paddingLeft()) + "px";
+ }
+ if (scroll)
+ scrollIntoView(left, top, left + node.offsetWidth, top + node.offsetHeight);
+ },
+
+ lineCount: function() {return doc.size;},
+ clipPos: clipPos,
+ getCursor: function(start) {
+ if (start == null) start = sel.inverted;
+ return copyPos(start ? sel.from : sel.to);
+ },
+ somethingSelected: function() {return !posEq(sel.from, sel.to);},
+ setCursor: operation(function(line, ch, user) {
+ if (ch == null && typeof line.line == "number") setCursor(line.line, line.ch, user);
+ else setCursor(line, ch, user);
+ }),
+ setSelection: operation(function(from, to, user) {
+ (user ? setSelectionUser : setSelection)(clipPos(from), clipPos(to || from));
+ }),
+ getLine: function(line) {if (isLine(line)) return getLine(line).text;},
+ getLineHandle: function(line) {if (isLine(line)) return getLine(line);},
+ setLine: operation(function(line, text) {
+ if (isLine(line)) replaceRange(text, {line: line, ch: 0}, {line: line, ch: getLine(line).text.length});
+ }),
+ removeLine: operation(function(line) {
+ if (isLine(line)) replaceRange("", {line: line, ch: 0}, clipPos({line: line+1, ch: 0}));
+ }),
+ replaceRange: operation(replaceRange),
+ getRange: function(from, to) {return getRange(clipPos(from), clipPos(to));},
+
+ execCommand: function(cmd) {return commands[cmd](instance);},
+ // Stuff used by commands, probably not much use to outside code.
+ moveH: operation(moveH),
+ deleteH: operation(deleteH),
+ moveV: operation(moveV),
+ toggleOverwrite: function() {overwrite = !overwrite;},
+
+ posFromIndex: function(off) {
+ var lineNo = 0, ch;
+ doc.iter(0, doc.size, function(line) {
+ var sz = line.text.length + 1;
+ if (sz > off) { ch = off; return true; }
+ off -= sz;
+ ++lineNo;
+ });
+ return clipPos({line: lineNo, ch: ch});
+ },
+ indexFromPos: function (coords) {
+ if (coords.line < 0 || coords.ch < 0) return 0;
+ var index = coords.ch;
+ doc.iter(0, coords.line, function (line) {
+ index += line.text.length + 1;
+ });
+ return index;
+ },
+
+ operation: function(f){return operation(f)();},
+ refresh: function(){updateDisplay(true);},
+ 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(code) {
+ var text = [];
+ doc.iter(0, doc.size, function(line) { text.push(line.text); });
+ return text.join("\n");
+ }
+
+ function onMouseDown(e) {
+ setShift(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 && !mac) onContextMenu(e);
+ return;
+ case 2:
+ if (start) setCursor(start.line, start.ch, true);
+ 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;
+ if (lastDoubleClick && lastDoubleClick.time > now - 400 && posEq(lastDoubleClick.pos, start)) {
+ e_preventDefault(e);
+ setTimeout(focusInput, 20);
+ return selectLine(start.line);
+ } else if (lastClick && lastClick.time > now - 400 && posEq(lastClick.pos, start)) {
+ lastDoubleClick = {time: now, pos: start};
+ e_preventDefault(e);
+ return selectWordAt(start);
+ } else { lastClick = {time: now, pos: start}; }
+
+ var last = start, going;
+ if (dragAndDrop && !posEq(sel.from, sel.to) &&
+ !posLess(start, sel.from) && !posLess(sel.to, start)) {
+ // Let the drag handler handle this.
+ if (webkit) lineSpace.draggable = true;
+ var up = connect(targetDocument, "mouseup", operation(function(e2) {
+ if (webkit) lineSpace.draggable = false;
+ draggingText = false;
+ up();
+ if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) {
+ e_preventDefault(e2);
+ setCursor(start.line, start.ch, true);
+ focusInput();
+ }
+ }), true);
+ draggingText = true;
+ return;
+ }
+ e_preventDefault(e);
+ setCursor(start.line, start.ch, true);
+
+ function extend(e) {
+ var cur = posFromMouse(e, true);
+ if (cur && !posEq(cur, last)) {
+ if (!focused) onFocus();
+ last = cur;
+ setSelectionUser(start, cur);
+ updateInput = false;
+ var visible = visibleLines();
+ if (cur.line >= visible.to || cur.line < visible.from)
+ going = setTimeout(operation(function(){extend(e);}), 150);
+ }
+ }
+
+ var move = connect(targetDocument, "mousemove", operation(function(e) {
+ clearTimeout(going);
+ e_preventDefault(e);
+ extend(e);
+ }), true);
+ var up = connect(targetDocument, "mouseup", operation(function(e) {
+ clearTimeout(going);
+ var cur = posFromMouse(e);
+ if (cur) setSelectionUser(start, cur);
+ e_preventDefault(e);
+ focusInput();
+ updateInput = true;
+ move(); up();
+ }), true);
+ }
+ function onDoubleClick(e) {
+ for (var n = e_target(e); n != wrapper; n = n.parentNode)
+ if (n.parentNode == gutterText) return e_preventDefault(e);
+ var start = posFromMouse(e);
+ if (!start) return;
+ lastDoubleClick = {time: +new Date, pos: start};
+ e_preventDefault(e);
+ selectWordAt(start);
+ }
+ function onDrop(e) {
+ 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 {
+ try {
+ var text = e.dataTransfer.getData("Text");
+ if (text) {
+ var end = replaceRange(text, pos, pos);
+ var curFrom = sel.from, curTo = sel.to;
+ setSelectionUser(pos, end);
+ if (draggingText) replaceRange("", curFrom, curTo);
+ focusInput();
+ }
+ }
+ catch(e){}
+ }
+ }
+ function onDragStart(e) {
+ var txt = getSelection();
+ // This will reset escapeElement
+ htmlEscape(txt);
+ e.dataTransfer.setDragImage(escapeElement, 0, 0);
+ e.dataTransfer.setData("Text", txt);
+ }
+ function handleKeyBinding(e) {
+ var name = keyNames[e.keyCode], next = keyMap[options.keyMap].auto, bound, dropShift;
+ if (name == null || e.altGraphKey) {
+ if (next) options.keyMap = next;
+ return null;
+ }
+ if (e.altKey) name = "Alt-" + name;
+ if (e.ctrlKey) name = "Ctrl-" + name;
+ if (e.metaKey) name = "Cmd-" + name;
+ if (e.shiftKey && (bound = lookupKey("Shift-" + name, options.extraKeys, options.keyMap))) {
+ dropShift = true;
+ } else {
+ bound = lookupKey(name, options.extraKeys, options.keyMap);
+ }
+ if (typeof bound == "string") {
+ if (commands.propertyIsEnumerable(bound)) bound = commands[bound];
+ else bound = null;
+ }
+ if (next && (bound || !isModifierKey(e))) options.keyMap = next;
+ if (!bound) return false;
+ if (dropShift) {
+ var prevShift = shiftSelecting;
+ shiftSelecting = null;
+ bound(instance);
+ shiftSelecting = prevShift;
+ } else bound(instance);
+ e_preventDefault(e);
+ return true;
+ }
+ var lastStoppedKey = null;
+ function onKeyDown(e) {
+ if (!focused) onFocus();
+ var code = e.keyCode;
+ // IE does strange things with escape.
+ if (ie && code == 27) { e.returnValue = false; }
+ setShift(code == 16 || e.shiftKey);
+ // First give onKeyEvent option a chance to handle this.
+ if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return;
+ var handled = handleKeyBinding(e);
+ if (window.opera) {
+ lastStoppedKey = handled ? e.keyCode : null;
+ // Opera has no cut event... we try to at least catch the key combo
+ if (!handled && (mac ? e.metaKey : e.ctrlKey) && e.keyCode == 88)
+ replaceSelection("");
+ }
+ }
+ function onKeyPress(e) {
+ if (window.opera && e.keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;}
+ if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return;
+ if (window.opera && !e.which && handleKeyBinding(e)) return;
+ if (options.electricChars && mode.electricChars) {
+ var ch = String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode);
+ if (mode.electricChars.indexOf(ch) > -1)
+ setTimeout(operation(function() {indentLine(sel.to.line, "smart");}), 75);
+ }
+ fastPoll();
+ }
+ function onKeyUp(e) {
+ if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return;
+ if (e.keyCode == 16) shiftSelecting = null;
+ }
+
+ function onFocus() {
+ if (options.readOnly) return;
+ if (!focused) {
+ if (options.onFocus) options.onFocus(instance);
+ focused = true;
+ if (wrapper.className.search(/\bCodeMirror-focused\b/) == -1)
+ wrapper.className += " CodeMirror-focused";
+ if (!leaveInputAlone) resetInput(true);
+ }
+ slowPoll();
+ restartBlink();
+ }
+ function onBlur() {
+ if (focused) {
+ if (options.onBlur) options.onBlur(instance);
+ focused = false;
+ wrapper.className = wrapper.className.replace(" CodeMirror-focused", "");
+ }
+ clearInterval(blinker);
+ setTimeout(function() {if (!focused) shiftSelecting = null;}, 150);
+ }
+
+ // 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 (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) {
+ var change = from.pop();
+ if (change) {
+ var replaced = [], end = change.start + change.added;
+ doc.iter(change.start, end, function(line) { replaced.push(line.text); });
+ to.push({start: change.start, added: change.old.length, old: replaced});
+ var pos = clipPos({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;
+ }
+ }
+ function undo() {unredoHelper(history.done, history.undone);}
+ function redo() {unredoHelper(history.undone, history.done);}
+
+ function updateLinesNoUndo(from, to, newText, selFrom, selTo) {
+ var recomputeMaxLength = false, maxLineLength = maxLine.length;
+ if (!options.lineWrapping)
+ doc.iter(from.line, to.line, function(line) {
+ if (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 = 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, i + newText.length, function(line) {
+ var l = line.text;
+ if (l.length > maxLineLength) {
+ maxLine = l; maxLineLength = l.length; maxWidth = null;
+ recomputeMaxLength = false;
+ }
+ });
+ if (recomputeMaxLength) {
+ maxLineLength = 0; maxLine = ""; maxWidth = null;
+ doc.iter(0, doc.size, function(line) {
+ var l = line.text;
+ if (l.length > maxLineLength) {
+ maxLineLength = l.length; maxLine = l;
+ }
+ });
+ }
+ }
+
+ // 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(selFrom, selTo, updateLine(sel.from.line), updateLine(sel.to.line));
+
+ // Make sure the scroll-size div has the correct height.
+ code.style.height = (doc.height * textHeight() + 2 * paddingTop()) + "px";
+ }
+
+ 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) {
+ 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("\n");
+ }
+ function getSelection() {
+ return getRange(sel.from, sel.to);
+ }
+
+ 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)) 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");
+ prevInput = text;
+ return true;
+ }
+ function resetInput(user) {
+ if (!posEq(sel.from, sel.to)) {
+ prevInput = "";
+ input.value = getSelection();
+ input.select();
+ } else if (user) prevInput = input.value = "";
+ }
+
+ function focusInput() {
+ if (!options.readOnly) input.focus();
+ }
+
+ function scrollEditorIntoView() {
+ if (!cursor.getBoundingClientRect) return;
+ 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) cursor.scrollIntoView();
+ }
+ function scrollCursorIntoView() {
+ var cursor = localCoords(sel.inverted ? sel.from : sel.to);
+ var x = options.lineWrapping ? Math.min(cursor.x, lineSpace.offsetWidth) : cursor.x;
+ return scrollIntoView(x, cursor.y, x, cursor.yBot);
+ }
+ function scrollIntoView(x1, y1, x2, y2) {
+ var pl = paddingLeft(), pt = paddingTop(), lh = textHeight();
+ y1 += pt; y2 += pt; x1 += pl; x2 += pl;
+ var screen = scroller.clientHeight, screentop = scroller.scrollTop, scrolled = false, result = true;
+ if (y1 < screentop) {scroller.scrollTop = Math.max(0, y1 - 2*lh); scrolled = true;}
+ else if (y2 > screentop + screen) {scroller.scrollTop = y2 + lh - screen; scrolled = true;}
+
+ var screenw = scroller.clientWidth, screenleft = scroller.scrollLeft;
+ var gutterw = options.fixedGutter ? gutter.clientWidth : 0;
+ if (x1 < screenleft + gutterw) {
+ if (x1 < 50) x1 = 0;
+ scroller.scrollLeft = Math.max(0, x1 - 10 - gutterw);
+ scrolled = true;
+ }
+ else if (x2 > screenw + screenleft - 3) {
+ scroller.scrollLeft = x2 + 10 - screenw;
+ scrolled = true;
+ if (x2 > code.clientWidth) result = false;
+ }
+ if (scrolled && options.onScroll) options.onScroll(instance);
+ return result;
+ }
+
+ function visibleLines() {
+ var lh = textHeight(), top = scroller.scrollTop - paddingTop();
+ var from_height = Math.max(0, Math.floor(top / lh));
+ var to_height = Math.ceil((top + scroller.clientHeight) / lh);
+ return {from: lineAtHeight(doc, from_height),
+ to: lineAtHeight(doc, to_height)};
+ }
+ // 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) {
+ if (!scroller.clientWidth) {
+ showingFrom = showingTo = displayOffset = 0;
+ return;
+ }
+ // Compute the new visible window
+ var visible = visibleLines();
+ // Bail out if the visible area is already rendered and nothing changed.
+ if (changes !== true && changes.length == 0 && visible.from >= showingFrom && visible.to <= showingTo) 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) return;
+ intact.sort(function(a, b) {return a.domStart - b.domStart;});
+
+ var th = textHeight(), gutterDisplay = gutter.style.display;
+ lineDiv.style.display = gutter.style.display = "none";
+ patchDisplay(from, to, intact);
+ lineDiv.style.display = "";
+
+ // Position the mover div to align with the lines it's supposed
+ // to be showing (which will cover the visible 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);
+ mover.style.top = (displayOffset * th) + "px";
+ code.style.height = (doc.height * th + 2 * paddingTop()) + "px";
+
+ // 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);
+
+ if (options.lineWrapping) {
+ maxWidth = scroller.clientWidth;
+ var curNode = lineDiv.firstChild;
+ 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 = true;}
+ }
+ curNode = curNode.nextSibling;
+ });
+ } else {
+ if (maxWidth == null) maxWidth = stringWidth(maxLine);
+ if (maxWidth > scroller.clientWidth) {
+ lineSpace.style.width = maxWidth + "px";
+ // Needed to prevent odd wrapping/hiding of widgets placed in here.
+ code.style.width = "";
+ code.style.width = scroller.scrollWidth + "px";
+ } else {
+ lineSpace.style.width = code.style.width = "";
+ }
+ }
+ gutter.style.display = gutterDisplay;
+ if (different || gutterDirty) updateGutter();
+ updateCursor();
+ 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 sfrom = sel.from.line, sto = sel.to.line, inSel = sfrom < from && sto >= from;
+ var scratch = targetDocument.createElement("div"), newElt;
+ doc.iter(from, to, function(line) {
+ var ch1 = null, ch2 = null;
+ if (inSel) {
+ ch1 = 0;
+ if (sto == j) {inSel = false; ch2 = sel.to.ch;}
+ } else if (sfrom == j) {
+ if (sto == j) {ch1 = sel.from.ch; ch2 = sel.to.ch;}
+ else {inSel = true; ch1 = sel.from.ch;}
+ }
+ if (nextIntact && nextIntact.to == j) nextIntact = intact.shift();
+ if (!nextIntact || nextIntact.from > j) {
+ if (line.hidden) scratch.innerHTML = "";
+ else scratch.innerHTML = line.getHTML(ch1, ch2, true, tabText);
+ 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;
+ doc.iter(showingFrom, Math.max(showingTo, showingFrom + 1), function(line) {
+ if (line.hidden) {
+ html.push("");
+ } else {
+ var marker = line.gutterMarker;
+ var text = options.lineNumbers ? 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 ? '' : ""), text);
+ for (var j = 1; j < line.height; ++j) html.push("
");
+ html.push("");
+ }
+ ++i;
+ });
+ gutter.style.display = "none";
+ gutterText.innerHTML = html.join("");
+ var minwidth = String(doc.size).length, firstNode = gutterText.firstChild, val = eltText(firstNode), pad = "";
+ while (val.length + pad.length < minwidth) pad += "\u00a0";
+ if (pad) firstNode.insertBefore(targetDocument.createTextNode(pad), firstNode.firstChild);
+ gutter.style.display = "";
+ lineSpace.style.marginLeft = gutter.offsetWidth + "px";
+ gutterDirty = false;
+ }
+ function updateCursor() {
+ var head = sel.inverted ? sel.from : sel.to, lh = textHeight();
+ var pos = localCoords(head, true);
+ var wrapOff = eltOffset(wrapper), lineOff = eltOffset(lineDiv);
+ inputDiv.style.top = (pos.y + lineOff.top - wrapOff.top) + "px";
+ inputDiv.style.left = (pos.x + lineOff.left - wrapOff.left) + "px";
+ if (posEq(sel.from, sel.to)) {
+ cursor.style.top = pos.y + "px";
+ cursor.style.left = (options.lineWrapping ? Math.min(pos.x, lineSpace.offsetWidth) : pos.x) + "px";
+ cursor.style.display = "";
+ }
+ else cursor.style.display = "none";
+ }
+
+ 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) from = skipHidden(from, oldFrom, sel.from.ch);
+ 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;
+
+ // Some ugly logic used to only mark the lines that actually did
+ // see a change in selection as changed, rather than the whole
+ // selected range.
+ if (posEq(from, to)) {
+ if (!posEq(sel.from, sel.to))
+ changes.push({from: oldFrom, to: oldTo + 1});
+ }
+ else if (posEq(sel.from, sel.to)) {
+ changes.push({from: from.line, to: to.line + 1});
+ }
+ else {
+ if (!posEq(from, sel.from)) {
+ if (from.line < oldFrom)
+ changes.push({from: from.line, to: Math.min(to.line, oldFrom) + 1});
+ else
+ changes.push({from: oldFrom, to: Math.min(oldTo, from.line) + 1});
+ }
+ if (!posEq(to, sel.to)) {
+ if (to.line < oldTo)
+ changes.push({from: Math.max(oldFrom, from.line), to: oldTo + 1});
+ else
+ changes.push({from: Math.max(from.line, oldTo), to: to.line + 1});
+ }
+ }
+ 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 (ch > oldCh || ch > line.text.length) ch = line.text.length;
+ return {line: lNo, ch: ch};
+ }
+ lNo += dir;
+ }
+ }
+ var line = getLine(pos.line);
+ 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 = scroller.clientHeight;
+ else if (unit == "line") dist = textHeight();
+ var target = coordsChar(pos.x, pos.y + dist * dir + 2);
+ setCursor(target.line, target.ch, true);
+ goalColumn = pos.x;
+ }
+
+ function selectWordAt(pos) {
+ var line = getLine(pos.line).text;
+ var start = pos.ch, end = pos.ch;
+ while (start > 0 && isWordChar(line.charAt(start - 1))) --start;
+ while (end < line.length && isWordChar(line.charAt(end))) ++end;
+ setSelectionUser({line: pos.line, ch: start}, {line: pos.line, ch: end});
+ }
+ function selectLine(line) {
+ setSelectionUser({line: line, ch: 0}, {line: line, ch: getLine(line).text.length});
+ }
+ 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 == "prev") {
+ if (n) indentation = getLine(n-1).indentation(options.tabSize);
+ else indentation = 0;
+ }
+ else if (how == "smart") indentation = mode.indent(state, line.text.slice(curSpaceString.length), line.text);
+ 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;
+
+ if (!diff) {
+ if (sel.from.line != n && sel.to.line != n) return;
+ var indentString = curSpaceString;
+ }
+ else {
+ 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 = "";
+ } else {
+ wrapper.className = wrapper.className.replace(" CodeMirror-wrap", "");
+ maxWidth = null; maxLine = "";
+ 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 computeTabText() {
+ for (var str = '', i = 0; i < options.tabSize; ++i) str += " ";
+ return str + "";
+ }
+ function tabsChanged() {
+ tabText = computeTabText();
+ updateDisplay(true);
+ }
+ function themeChanged() {
+ scroller.className = scroller.className.replace(/\s*cm-s-\w+/g, "") +
+ options.theme.replace(/(^|\s)\s*/g, " cm-s-");
+ }
+
+ 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].set == this.set) 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.set == this.set) {
+ 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();
+ function add(line, from, to, className) {
+ getLine(line).addMark(new MarkedText(from, to, className, tm.set));
+ }
+ 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 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) {
+ return changeLine(handle, function(line) {
+ if (line.className != className) {
+ line.className = className;
+ return true;
+ }
+ });
+ }
+ function setLineHidden(handle, hidden) {
+ return changeLine(handle, function(line, no) {
+ if (line.hidden != hidden) {
+ line.hidden = hidden;
+ updateLineHeight(line, hidden ? 0 : 1);
+ if (hidden && (sel.from.line == no || sel.to.line == no))
+ setSelection(skipHidden(sel.from, sel.from.line, sel.from.ch),
+ skipHidden(sel.to, sel.to.line, sel.to.ch));
+ 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};
+ }
+
+ function stringWidth(str) {
+ measure.innerHTML = "x
";
+ 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) {
+ measure.innerHTML = "" + lineObj.getHTML(null, null, false, tabText, len) + "
";
+ return measure.firstChild.firstChild.offsetWidth;
+ }
+ 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 = Math.floor(Math.random() * 0xffffff).toString(16);
+ function measureLine(line, ch) {
+ var extra = "";
+ // Include extra text at the end to make sure the measured line is wrapped in the right way.
+ if (options.lineWrapping) {
+ var end = line.text.indexOf(" ", ch + 2);
+ extra = htmlEscape(line.text.slice(ch + 1, end < 0 ? line.text.length : end + (ie ? 5 : 0)));
+ }
+ measure.innerHTML = "" + line.getHTML(null, null, false, tabText, ch) +
+ '' + htmlEscape(line.text.charAt(ch) || " ") + "" +
+ extra + "
";
+ var elt = document.getElementById("CodeMirror-temp-" + tempId);
+ var top = elt.offsetTop, left = elt.offsetLeft;
+ // Older IEs report zero offsets for spans directly after a wrap
+ if (ie && ch && top == 0 && left == 0) {
+ var backup = document.createElement("span");
+