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 --- js/codemirror/lib/codemirror.css | 67 -- js/codemirror/lib/codemirror.js | 2144 -------------------------------------- js/codemirror/lib/overlay.js | 51 - js/codemirror/lib/runmode.js | 27 - 4 files changed, 2289 deletions(-) delete mode 100644 js/codemirror/lib/codemirror.css delete mode 100644 js/codemirror/lib/codemirror.js delete mode 100644 js/codemirror/lib/overlay.js delete mode 100644 js/codemirror/lib/runmode.js (limited to 'js/codemirror/lib') diff --git a/js/codemirror/lib/codemirror.css b/js/codemirror/lib/codemirror.css deleted file mode 100644 index d93e72d7..00000000 --- a/js/codemirror/lib/codemirror.css +++ /dev/null @@ -1,67 +0,0 @@ -.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; - 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; -} -.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 textarea { - font-family: inherit !important; - font-size: inherit !important; -} - -.CodeMirror-cursor { - z-index: 10; - position: absolute; - visibility: hidden; - border-left: 1px solid black !important; -} -.CodeMirror-focused .CodeMirror-cursor { - visibility: visible; -} - -span.CodeMirror-selected { - background: #ccc !important; - color: HighlightText !important; -} -.CodeMirror-focused span.CodeMirror-selected { - background: Highlight !important; -} - -.CodeMirror-matchingbracket {color: #0f0 !important;} -.CodeMirror-nonmatchingbracket {color: #f22 !important;} diff --git a/js/codemirror/lib/codemirror.js b/js/codemirror/lib/codemirror.js deleted file mode 100644 index 27bec72f..00000000 --- a/js/codemirror/lib/codemirror.js +++ /dev/null @@ -1,2144 +0,0 @@ -// 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"; - // This mess creates the base DOM structure for the editor. - wrapper.innerHTML = - '
' + // Wraps and hides input textarea - '
' + - '
' + - '
' + // Set to the height of the text, causes scrolling - '
' + - '
' + // Moved around its parent to cover visible view - '
' + - // Provides positioning relative to (visible) text origin - '
' + - '
 
' + // Absolutely positioned blinky cursor - '
' + // This DIV contains the actual code - '
'; - 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, - measure = code.firstChild, mover = measure.nextSibling, - gutter = mover.firstChild, gutterText = gutter.firstChild, - lineSpace = gutter.nextSibling.firstChild, - cursor = lineSpace.firstChild, lineDiv = cursor.nextSibling; - if (options.tabindex != null) input.tabindex = options.tabindex; - if (!options.gutter && !options.lineNumbers) gutter.style.display = "none"; - - // 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. lines an array of Line objects - // (see Line constructor), work an array of lines that should be - // parsed, and history the undo history (instance of History - // constructor). - var mode, lines = [new Line("")], work, history = new History(), 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. reducedSelection is a hack - // to get around the fact that we can't create inverted - // selections. See below. - var shiftSelecting, reducedSelection, lastDoubleClick; - // Variables used by startOperation/endOperation to track what - // happened during the operation. - var updateInput, changes, textChanged, selectionChanged, leaveInputAlone; - // Current visible range (may be bigger than the view window). - var showingFrom = 0, showingTo = 0, lastHeight = 0, curKeyId = null; - // editing will hold an object describing the things we put in the - // textarea, to help figure out whether something changed. - // bracketHighlighted is used to remember that a backet has been - // marked. - var editing, bracketHighlighted; - // Tracks the maximum line length so that the horizontal scrollbar - // can be kept static when scrolling. - var maxLine = "", maxWidth; - - // Initialize the content. - operation(function(){setValue(options.value || ""); updateInput = false;})(); - - // Register our event handlers. - connect(scroller, "mousedown", operation(onMouseDown)); - // 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(code, "dblclick", operation(onDblClick)); - connect(scroller, "scroll", function() {updateDisplay([]); if (options.onScroll) options.onScroll(instance);}); - connect(window, "resize", function() {updateDisplay(true);}); - connect(input, "keyup", operation(onKeyUp)); - 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", function(){fastPoll();}); - connect(input, "cut", function(){fastPoll();}); - - // 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 < lines.length;} - // 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 = { - getValue: getValue, - setValue: operation(setValue), - getSelection: getSelection, - replaceSelection: operation(replaceSelection), - focus: function(){focusInput(); onFocus(); fastPoll();}, - setOption: function(option, value) { - options[option] = value; - if (option == "lineNumbers" || option == "gutter") gutterChanged(); - else if (option == "mode" || option == "indentUnit") loadMode(); - else if (option == "readOnly" && value == "nocursor") input.blur(); - else if (option == "theme") scroller.className = scroller.className.replace(/cm-s-\w+/, "cm-s-" + value); - }, - getOption: function(option) {return options[option];}, - undo: operation(undo), - redo: operation(redo), - indentLine: operation(function(n) {if (isLine(n)) indentLine(n, "smart");}), - historySize: function() {return {undo: history.done.length, redo: history.undone.length};}, - matchBrackets: operation(function(){matchBrackets(true);}), - getTokenAt: function(pos) { - pos = clipPos(pos); - return lines[pos.line].getTokenAt(mode, getStateBefore(pos.line), pos.ch); - }, - getStateAfter: function(line) { - line = clipLine(line == null ? lines.length - 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); - var line = clipLine(Math.min(lines.length - 1, showingFrom + Math.floor((coords.y - off.top) / lineHeight()))); - return clipPos({line: line, ch: charFromX(clipLine(line), coords.x - off.left)}); - }, - getSearchCursor: function(query, pos, caseFold) {return new SearchCursor(query, pos, caseFold);}, - markText: operation(function(a, b, c){return operation(markText(a, b, c));}), - setMarker: addGutterMarker, - clearMarker: removeGutterMarker, - setLineClass: operation(setLineClass), - lineInfo: lineInfo, - addWidget: function(pos, node, scroll, where) { - pos = localCoords(clipPos(pos)); - var top = pos.yBot, left = pos.x; - node.style.position = "absolute"; - code.appendChild(node); - node.style.left = left + "px"; - if (where == "over") top = pos.y; - else if (where == "near") { - var vspace = Math.max(scroller.offsetHeight, lines.length * lineHeight()), - 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 = (left + paddingLeft()) + "px"; - if (scroll) - scrollIntoView(left, top, left + node.offsetWidth, top + node.offsetHeight); - }, - - lineCount: function() {return lines.length;}, - 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) { - if (ch == null && typeof line.line == "number") setCursor(line.line, line.ch); - else setCursor(line, ch); - }), - setSelection: operation(function(from, to) {setSelection(clipPos(from), clipPos(to || from));}), - getLine: function(line) {if (isLine(line)) return lines[line].text;}, - setLine: operation(function(line, text) { - if (isLine(line)) replaceRange(text, {line: line, ch: 0}, {line: line, ch: lines[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));}, - - operation: function(f){return operation(f)();}, - refresh: function(){updateDisplay(true);}, - getInputField: function(){return input;}, - getWrapperElement: function(){return wrapper;}, - getScrollerElement: function(){return scroller;} - }; - - function setValue(code) { - history = null; - var top = {line: 0, ch: 0}; - updateLines(top, {line: lines.length - 1, ch: lines[lines.length-1].text.length}, - splitLines(code), top, top); - history = new History(); - } - function getValue(code) { - var text = []; - for (var i = 0, l = lines.length; i < l; ++i) - text.push(lines[i].text); - return text.join("\n"); - } - - function onMouseDown(e) { - // 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; - var ld = lastDoubleClick; lastDoubleClick = null; - // First, 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); - 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(); - e_preventDefault(e); - if (ld && +new Date - ld < 400) return selectLine(start.line); - - setCursor(start.line, start.ch, true); - var last = start, going; - // And then we have to see if it's a drag event, in which case - // the dragged-over text must be selected. - function end() { - focusInput(); - updateInput = true; - move(); up(); - } - 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); - end(); - }), true); - } - function onDblClick(e) { - var pos = posFromMouse(e); - if (!pos) return; - selectWordAt(pos); - e_preventDefault(e); - lastDoubleClick = +new Date; - } - 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) replaceRange(text.join(""), clipPos(pos), clipPos(pos)); - }; - 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) replaceRange(text, pos, pos); - } - catch(e){} - } - } - function onKeyDown(e) { - if (!focused) onFocus(); - - var code = e.keyCode; - // IE does strange things with escape. - if (ie && code == 27) { e.returnValue = false; } - // Tries to detect ctrl on non-mac, cmd on mac. - var mod = (mac ? e.metaKey : e.ctrlKey) && !e.altKey, anyMod = e.ctrlKey || e.altKey || e.metaKey; - if (code == 16 || e.shiftKey) shiftSelecting = shiftSelecting || (sel.inverted ? sel.to : sel.from); - else shiftSelecting = null; - // First give onKeyEvent option a chance to handle this. - if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return; - - if (code == 33 || code == 34) {scrollPage(code == 34); return e_preventDefault(e);} // page up/down - if (mod && ((code == 36 || code == 35) || // ctrl-home/end - mac && (code == 38 || code == 40))) { // cmd-up/down - scrollEnd(code == 36 || code == 38); return e_preventDefault(e); - } - if (mod && code == 65) {selectAll(); return e_preventDefault(e);} // ctrl-a - if (!options.readOnly) { - if (!anyMod && code == 13) {return;} // enter - if (!anyMod && code == 9 && handleTab(e.shiftKey)) return e_preventDefault(e); // tab - if (mod && code == 90) {undo(); return e_preventDefault(e);} // ctrl-z - if (mod && ((e.shiftKey && code == 90) || code == 89)) {redo(); return e_preventDefault(e);} // ctrl-shift-z, ctrl-y - } - - // Key id to use in the movementKeys map. We also pass it to - // fastPoll in order to 'self learn'. We need this because - // reducedSelection, the hack where we collapse the selection to - // its start when it is inverted and a movement key is pressed - // (and later restore it again), shouldn't be used for - // non-movement keys. - curKeyId = (mod ? "c" : "") + code; - if (sel.inverted && movementKeys.hasOwnProperty(curKeyId)) { - var range = selRange(input); - if (range) { - reducedSelection = {anchor: range.start}; - setSelRange(input, range.start, range.start); - } - } - fastPoll(curKeyId); - } - function onKeyUp(e) { - if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return; - if (reducedSelection) { - reducedSelection = null; - updateInput = true; - } - if (e.keyCode == 16) shiftSelecting = null; - } - function onKeyPress(e) { - if (options.onKeyEvent && options.onKeyEvent(instance, addStop(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");}), 50); - } - var code = e.keyCode; - // Re-stop tab and enter. Necessary on some browsers. - if (code == 13) {if (!options.readOnly) handleEnter(); e_preventDefault(e);} - else if (!e.ctrlKey && !e.altKey && !e.metaKey && code == 9 && options.tabMode != "default") e_preventDefault(e); - else fastPoll(curKeyId); - } - - function onFocus() { - if (options.readOnly == "nocursor") 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) prepareInput(); - } - 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 = []; - for (var i = from.line, e = to.line + 1; i < e; ++i) old.push(lines[i].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; - for (var i = change.start; i < end; ++i) replaced.push(lines[i].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: lines[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; - for (var i = from.line; i <= to.line; ++i) { - if (lines[i].text.length == maxLineLength) {recomputeMaxLength = true; break;} - } - - var nlines = to.line - from.line, firstLine = lines[from.line], lastLine = lines[to.line]; - // First adjust the line structure, taking some care to leave highlighting intact. - 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]); - var spliceargs = [from.line + 1, nlines]; - firstLine.replace(from.ch, firstLine.text.length, newText[0]); - for (var i = 1, e = newText.length - 1; i < e; ++i) spliceargs.push(new Line(newText[i])); - spliceargs.push(lastLine); - lines.splice.apply(lines, spliceargs); - } - } - else if (newText.length == 1) { - firstLine.replace(from.ch, firstLine.text.length, newText[0] + lastLine.text.slice(to.ch)); - lines.splice(from.line + 1, nlines); - } - else { - var spliceargs = [from.line + 1, nlines - 1]; - firstLine.replace(from.ch, firstLine.text.length, newText[0]); - lastLine.replace(0, to.ch, newText[newText.length-1]); - for (var i = 1, e = newText.length - 1; i < e; ++i) spliceargs.push(new Line(newText[i])); - lines.splice.apply(lines, spliceargs); - } - - - for (var i = from.line, e = i + newText.length; i < e; ++i) { - var l = lines[i].text; - if (l.length > maxLineLength) { - maxLine = l; maxLineLength = l.length; maxWidth = null; - recomputeMaxLength = false; - } - } - if (recomputeMaxLength) { - maxLineLength = 0; maxLine = ""; maxWidth = null; - for (var i = 0, e = lines.length; i < e; ++i) { - var l = lines[i].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); - } - if (newText.length < 5) { - highlightLines(from.line, from.line + newText.length); - newWork.push(from.line + newText.length); - } else { - newWork.push(from.line); - } - work = newWork; - startWorker(100); - // Remember that these lines changed, for updating the display - changes.push({from: from.line, to: to.line + 1, diff: lendiff}); - textChanged = {from: from, to: to, text: newText}; - - // 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 = (lines.length * lineHeight() + 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 lines[l1].text.slice(from.ch, to.ch); - var code = [lines[l1].text.slice(from.ch)]; - for (var i = l1 + 1; i < l2; ++i) code.push(lines[i].text); - code.push(lines[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(2000, function() { - startOperation(); - readInput(); - if (focused) slowPoll(); - endOperation(); - }); - } - function fastPoll(keyId) { - var missed = false; - pollingFast = true; - function p() { - startOperation(); - var changed = readInput(); - if (changed == "moved" && keyId) movementKeys[keyId] = true; - if (!changed && !missed) {missed = true; poll.set(80, p);} - else {pollingFast = false; slowPoll();} - endOperation(); - } - poll.set(20, p); - } - - // Inspects the textarea, compares its state (content, selection) - // to the data in the editing variable, and updates the editor - // content or cursor if something changed. - function readInput() { - if (leaveInputAlone || !focused) return; - var changed = false, text = input.value, sr = selRange(input); - if (!sr) return false; - var changed = editing.text != text, rs = reducedSelection; - var moved = changed || sr.start != editing.start || sr.end != (rs ? editing.start : editing.end); - if (!moved && !rs) return false; - if (changed) { - shiftSelecting = reducedSelection = null; - if (options.readOnly) {updateInput = true; return "changed";} - } - - // Compute selection start and end based on start/end offsets in textarea - function computeOffset(n, startLine) { - var pos = 0; - for (;;) { - var found = text.indexOf("\n", pos); - if (found == -1 || (text.charAt(found-1) == "\r" ? found - 1 : found) >= n) - return {line: startLine, ch: n - pos}; - ++startLine; - pos = found + 1; - } - } - var from = computeOffset(sr.start, editing.from), - to = computeOffset(sr.end, editing.from); - // Here we have to take the reducedSelection hack into account, - // so that you can, for example, press shift-up at the start of - // your selection and have the right thing happen. - if (rs) { - var head = sr.start == rs.anchor ? to : from; - var tail = shiftSelecting ? sel.to : sr.start == rs.anchor ? from : to; - if (sel.inverted = posLess(head, tail)) { from = head; to = tail; } - else { reducedSelection = null; from = tail; to = head; } - } - - // In some cases (cursor on same line as before), we don't have - // to update the textarea content at all. - if (from.line == to.line && from.line == sel.from.line && from.line == sel.to.line && !shiftSelecting) - updateInput = false; - - // Magic mess to extract precise edited range from the changed - // string. - if (changed) { - var start = 0, end = text.length, len = Math.min(end, editing.text.length); - var c, line = editing.from, nl = -1; - while (start < len && (c = text.charAt(start)) == editing.text.charAt(start)) { - ++start; - if (c == "\n") {line++; nl = start;} - } - var ch = nl > -1 ? start - nl : start, endline = editing.to - 1, edend = editing.text.length; - for (;;) { - c = editing.text.charAt(edend); - if (text.charAt(end) != c) {++end; ++edend; break;} - if (c == "\n") endline--; - if (edend <= start || end <= start) break; - --end; --edend; - } - var nl = editing.text.lastIndexOf("\n", edend - 1), endch = nl == -1 ? edend : edend - nl - 1; - updateLines({line: line, ch: ch}, {line: endline, ch: endch}, splitLines(text.slice(start, end)), from, to); - if (line != endline || from.line != line) updateInput = true; - } - else setSelection(from, to); - - editing.text = text; editing.start = sr.start; editing.end = sr.end; - return changed ? "changed" : moved ? "moved" : false; - } - - // Set the textarea content and selection range to match the - // editor state. - function prepareInput() { - var text = []; - var from = Math.max(0, sel.from.line - 1), to = Math.min(lines.length, sel.to.line + 2); - for (var i = from; i < to; ++i) text.push(lines[i].text); - text = input.value = text.join(lineSep); - var startch = sel.from.ch, endch = sel.to.ch; - for (var i = from; i < sel.from.line; ++i) - startch += lineSep.length + lines[i].text.length; - for (var i = from; i < sel.to.line; ++i) - endch += lineSep.length + lines[i].text.length; - editing = {text: text, from: from, to: to, start: startch, end: endch}; - setSelRange(input, startch, reducedSelection ? startch : endch); - } - function focusInput() { - if (options.readOnly != "nocursor") input.focus(); - } - - function scrollCursorIntoView() { - var cursor = localCoords(sel.inverted ? sel.from : sel.to); - return scrollIntoView(cursor.x, cursor.y, cursor.x, cursor.yBot); - } - function scrollIntoView(x1, y1, x2, y2) { - var pl = paddingLeft(), pt = paddingTop(), lh = lineHeight(); - 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; - if (x1 < screenleft) { - if (x1 < 50) x1 = 0; - scroller.scrollLeft = Math.max(0, x1 - 10); - scrolled = true; - } - else if (x2 > screenw + screenleft) { - 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 = lineHeight(), top = scroller.scrollTop - paddingTop(); - return {from: Math.min(lines.length, Math.max(0, Math.floor(top / lh))), - to: Math.min(lines.length, Math.ceil((top + scroller.clientHeight) / lh))}; - } - // 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) { - if (!scroller.clientWidth) { - showingFrom = showingTo = 0; - return; - } - // First create a range of theoretically intact lines, and punch - // holes in that using the change info. - var intact = changes === true ? [] : [{from: showingFrom, to: showingTo, domStart: 0}]; - 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) - intact2.push({from: range.from + diff, to: range.to + diff, domStart: range.domStart}); - else if (range.to <= change.from) - 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; - } - - // Then, determine which lines we'd want to see, and which - // updates have to be made to get there. - var visible = visibleLines(); - var from = Math.min(showingFrom, Math.max(visible.from - 3, 0)), - to = Math.min(lines.length, Math.max(showingTo, visible.to + 3)), - updates = [], domPos = 0, domEnd = showingTo - showingFrom, pos = from, changedLines = 0; - - for (var i = 0, l = intact.length; i < l; ++i) { - var range = intact[i]; - if (range.to <= from) continue; - if (range.from >= to) break; - if (range.domStart > domPos || range.from > pos) { - updates.push({from: pos, to: range.from, domSize: range.domStart - domPos, domStart: domPos}); - changedLines += range.from - pos; - } - pos = range.to; - domPos = range.domStart + (range.to - range.from); - } - if (domPos != domEnd || pos != to) { - changedLines += Math.abs(to - pos); - updates.push({from: pos, to: to, domSize: domEnd - domPos, domStart: domPos}); - } - - if (!updates.length) return; - lineDiv.style.display = "none"; - // If more than 30% of the screen needs update, just do a full - // redraw (which is quicker than patching) - if (changedLines > (visible.to - visible.from) * .3) - refreshDisplay(from = Math.max(visible.from - 10, 0), to = Math.min(visible.to + 7, lines.length)); - // Otherwise, only update the stuff that needs updating. - else - patchDisplay(updates); - 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 || lastHeight != scroller.clientHeight; - showingFrom = from; showingTo = to; - mover.style.top = (from * lineHeight()) + "px"; - if (different) { - lastHeight = scroller.clientHeight; - code.style.height = (lines.length * lineHeight() + 2 * paddingTop()) + "px"; - updateGutter(); - } - - 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 = ""; - } - - // 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(updates) + " size=" + (showingTo - showingFrom) + - " nodes=" + lineDiv.childNodes.length); - updateCursor(); - } - - function refreshDisplay(from, to) { - var html = [], start = {line: from, ch: 0}, inSel = posLess(sel.from, start) && !posLess(sel.to, start); - for (var i = from; i < to; ++i) { - var ch1 = null, ch2 = null; - if (inSel) { - ch1 = 0; - if (sel.to.line == i) {inSel = false; ch2 = sel.to.ch;} - } - else if (sel.from.line == i) { - if (sel.to.line == i) {ch1 = sel.from.ch; ch2 = sel.to.ch;} - else {inSel = true; ch1 = sel.from.ch;} - } - html.push(lines[i].getHTML(ch1, ch2, true)); - } - lineDiv.innerHTML = html.join(""); - } - function patchDisplay(updates) { - // Slightly different algorithm for IE (badInnerHTML), since - // there .innerHTML on PRE nodes is dumb, and discards - // whitespace. - var sfrom = sel.from.line, sto = sel.to.line, off = 0, - scratch = badInnerHTML && targetDocument.createElement("div"); - for (var i = 0, e = updates.length; i < e; ++i) { - var rec = updates[i]; - var extra = (rec.to - rec.from) - rec.domSize; - var nodeAfter = lineDiv.childNodes[rec.domStart + rec.domSize + off] || null; - if (badInnerHTML) - for (var j = Math.max(-extra, rec.domSize); j > 0; --j) - lineDiv.removeChild(nodeAfter ? nodeAfter.previousSibling : lineDiv.lastChild); - else if (extra) { - for (var j = Math.max(0, extra); j > 0; --j) - lineDiv.insertBefore(targetDocument.createElement("pre"), nodeAfter); - for (var j = Math.max(0, -extra); j > 0; --j) - lineDiv.removeChild(nodeAfter ? nodeAfter.previousSibling : lineDiv.lastChild); - } - var node = lineDiv.childNodes[rec.domStart + off], inSel = sfrom < rec.from && sto >= rec.from; - for (var j = rec.from; j < rec.to; ++j) { - 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 (badInnerHTML) { - scratch.innerHTML = lines[j].getHTML(ch1, ch2, true); - lineDiv.insertBefore(scratch.firstChild, nodeAfter); - } - else { - node.innerHTML = lines[j].getHTML(ch1, ch2, false); - node.className = lines[j].className || ""; - node = node.nextSibling; - } - } - off += extra; - } - } - - 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 = []; - for (var i = showingFrom; i < Math.max(showingTo, showingFrom + 1); ++i) { - var marker = lines[i].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, "
"); - } - gutter.style.display = "none"; - gutterText.innerHTML = html.join(""); - var minwidth = String(lines.length).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"; - } - function updateCursor() { - var head = sel.inverted ? sel.from : sel.to, lh = lineHeight(); - var x = charX(head.line, head.ch) + "px", y = (head.line - showingFrom) * lh + "px"; - inputDiv.style.top = (head.line * lh - scroller.scrollTop) + "px"; - if (posEq(sel.from, sel.to)) { - cursor.style.top = y; cursor.style.left = x; - cursor.style.display = ""; - } - else cursor.style.display = "none"; - } - - 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); - } - // 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) { - if (posEq(sel.from, from) && posEq(sel.to, to)) return; - if (posLess(to, from)) {var tmp = to; to = from; from = tmp;} - - 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 (oldFrom == null) {oldFrom = sel.from.line; oldTo = sel.to.line;} - 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 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, lines.length-1));} - function clipPos(pos) { - if (pos.line < 0) return {line: 0, ch: 0}; - if (pos.line >= lines.length) return {line: lines.length-1, ch: lines[lines.length-1].text.length}; - var ch = pos.ch, linelen = lines[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 scrollPage(down) { - var linesPerPage = Math.floor(scroller.clientHeight / lineHeight()), head = sel.inverted ? sel.from : sel.to; - setCursor(head.line + (Math.max(linesPerPage - 1, 1) * (down ? 1 : -1)), head.ch, true); - } - function scrollEnd(top) { - var pos = top ? {line: 0, ch: 0} : {line: lines.length - 1, ch: lines[lines.length-1].text.length}; - setSelectionUser(pos, pos); - } - function selectAll() { - var endLine = lines.length - 1; - setSelection({line: 0, ch: 0}, {line: endLine, ch: lines[endLine].text.length}); - } - function selectWordAt(pos) { - var line = lines[pos.line].text; - var start = pos.ch, end = pos.ch; - while (start > 0 && /\w/.test(line.charAt(start - 1))) --start; - while (end < line.length && /\w/.test(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: lines[line].text.length}); - } - function handleEnter() { - replaceSelection("\n", "end"); - if (options.enterMode != "flat") - indentLine(sel.from.line, options.enterMode == "keep" ? "prev" : "smart"); - } - function handleTab(shift) { - 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); - } - shiftSelecting = null; - switch (options.tabMode) { - case "default": - return false; - case "indent": - indentSelected("smart"); - break; - case "classic": - if (posEq(sel.from, sel.to)) { - if (shift) indentLine(sel.from.line, "smart"); - else replaceSelection("\t", "end"); - break; - } - case "shift": - indentSelected(shift ? "subtract" : "add"); - break; - } - return true; - } - - function indentLine(n, how) { - if (how == "smart") { - if (!mode.indent) how = "prev"; - else var state = getStateBefore(n); - } - - var line = lines[n], curSpace = line.indentation(), curSpaceString = line.text.match(/^\s*/)[0], indentation; - if (how == "prev") { - if (n) indentation = lines[n-1].indentation(); - else indentation = 0; - } - else if (how == "smart") indentation = mode.indent(state, line.text.slice(curSpaceString.length)); - 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 / tabSize); i; --i) {pos += 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); - for (var i = 0, l = lines.length; i < l; ++i) - lines[i].stateAfter = null; - work = [0]; - startWorker(); - } - function gutterChanged() { - var visible = options.gutter || options.lineNumbers; - gutter.style.display = visible ? "" : "none"; - if (visible) updateGutter(); - else lineDiv.parentNode.style.marginLeft = 0; - } - - function markText(from, to, className) { - from = clipPos(from); to = clipPos(to); - var accum = []; - function add(line, from, to, className) { - var line = lines[line], mark = line.addMark(from, to, className); - mark.line = line; - accum.push(mark); - } - 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, 0, null, className); - add(to.line, 0, to.ch, className); - } - changes.push({from: from.line, to: to.line + 1}); - return function() { - var start, end; - for (var i = 0; i < accum.length; ++i) { - var mark = accum[i], found = indexOf(lines, mark.line); - mark.line.removeMark(mark); - if (found > -1) { - if (start == null) start = found; - end = found; - } - } - if (start != null) changes.push({from: start, to: end + 1}); - }; - } - - function addGutterMarker(line, text, className) { - if (typeof line == "number") line = lines[clipLine(line)]; - line.gutterMarker = {text: text, style: className}; - updateGutter(); - return line; - } - function removeGutterMarker(line) { - if (typeof line == "number") line = lines[clipLine(line)]; - line.gutterMarker = null; - updateGutter(); - } - function setLineClass(line, className) { - if (typeof line == "number") { - var no = line; - line = lines[clipLine(line)]; - } - else { - var no = indexOf(lines, line); - if (no == -1) return null; - } - if (line.className != className) { - line.className = className; - changes.push({from: no, to: no + 1}); - } - return line; - } - - function lineInfo(line) { - if (typeof line == "number") { - var n = line; - line = lines[line]; - if (!line) return null; - } - else { - var n = indexOf(lines, line); - if (n == -1) return null; - } - var marker = line.gutterMarker; - return {line: n, text: line.text, markerText: marker && marker.text, markerClass: marker && marker.style}; - } - - 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 charX(line, pos) { - if (pos == 0) return 0; - measure.innerHTML = "
" + lines[line].getHTML(null, null, false, pos) + "
"; - return measure.firstChild.firstChild.offsetWidth; - } - function charFromX(line, x) { - if (x <= 0) return 0; - var lineObj = lines[line], text = lineObj.text; - function getX(len) { - measure.innerHTML = "
" + lineObj.getHTML(null, null, false, 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 / stringWidth("x"))); - 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;} - } - } - - function localCoords(pos, inLineWrap) { - var lh = lineHeight(), line = pos.line - (inLineWrap ? showingFrom : 0); - return {x: charX(pos.line, pos.ch), y: line * lh, yBot: (line + 1) * lh}; - } - 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}; - } - - function lineHeight() { - var nlines = lineDiv.childNodes.length; - if (nlines) return (lineDiv.offsetHeight / nlines) || 1; - measure.innerHTML = "
x
"; - return measure.firstChild.offsetHeight || 1; - } - 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); - var line = showingFrom + Math.floor((y - offL.top) / lineHeight()); - return clipPos({line: line, ch: charFromX(clipLine(line), x - offL.left)}); - } - function onContextMenu(e) { - var pos = posFromMouse(e); - if (!pos || window.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_pageY(e) - 1) + - "px; left: " + (e_pageX(e) - 1) + "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(); - setSelRange(input, 0, input.value.length); - function rehide() { - var newVal = splitLines(input.value).join("\n"); - if (newVal != val) operation(replaceSelection)(newVal, "end"); - inputDiv.style.position = "relative"; - input.style.cssText = oldCSS; - leaveInputAlone = false; - prepareInput(); - 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 = lines[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] != null && 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, lines.length) : Math.max(-1, i - 100); i != e; i+=d) { - var line = lines[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) - : function() {}; - var clear = operation(function(){one(); two();}); - 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 = lines[search-1]; - if (line.stateAfter) return search; - var indented = line.indentation(); - if (minline == null || minindent > indented) { - minline = search; - minindent = indented; - } - } - return minline; - } - function getStateBefore(n) { - var start = findStartLine(n), state = start && lines[start-1].stateAfter; - if (!state) state = startState(mode); - else state = copyState(mode, state); - for (var i = start; i < n; ++i) { - var line = lines[i]; - line.highlight(mode, state); - line.stateAfter = copyState(mode, state); - } - if (n < lines.length && !lines[n].stateAfter) work.push(n); - return state; - } - function highlightLines(start, end) { - var state = getStateBefore(start); - for (var i = start; i < end; ++i) { - var line = lines[i]; - line.highlight(mode, state); - line.stateAfter = copyState(mode, state); - } - } - function highlightWorker() { - var end = +new Date + options.workTime; - var foundWork = work.length; - while (work.length) { - if (!lines[showingFrom].stateAfter) var task = showingFrom; - else var task = work.pop(); - if (task >= lines.length) continue; - var start = findStartLine(task), state = start && lines[start-1].stateAfter; - if (state) state = copyState(mode, state); - else state = startState(mode); - - var unchanged = 0, compare = mode.compareStates; - for (var i = start, l = lines.length; i < l; ++i) { - var line = lines[i], hadState = line.stateAfter; - if (+new Date > end) { - work.push(i); - startWorker(options.workDelay); - changes.push({from: task, to: i + 1}); - return; - } - var changed = line.highlight(mode, state); - line.stateAfter = copyState(mode, state); - if (compare) { - if (hadState && compare(hadState, state)) break; - } else { - if (changed || !hadState) unchanged = 0; - else if (++unchanged > 3) break; - } - } - 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 = null; changes = []; textChanged = selectionChanged = false; - } - function endOperation() { - var reScroll = false; - if (selectionChanged) reScroll = !scrollCursorIntoView(); - if (changes.length) updateDisplay(changes); - else if (selectionChanged) updateCursor(); - if (reScroll) scrollCursorIntoView(); - if (selectionChanged) restartBlink(); - - // updateInput can be set to a boolean value to force/prevent an - // update. - if (focused && !leaveInputAlone && - (updateInput === true || (updateInput !== false && selectionChanged))) - prepareInput(); - - if (selectionChanged && options.matchBrackets) - setTimeout(operation(function() { - if (bracketHighlighted) {bracketHighlighted(); bracketHighlighted = null;} - matchBrackets(false); - }), 20); - var tc = textChanged; // textChanged can be reset by cursoractivity callback - if (selectionChanged && options.onCursorActivity) - options.onCursorActivity(instance); - if (tc && options.onChange && instance) - options.onChange(instance, tc); - } - 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 SearchCursor(query, pos, caseFold) { - this.atOccurrence = false; - if (caseFold == null) caseFold = typeof query == "string" && query == query.toLowerCase(); - - if (pos && typeof pos == "object") pos = clipPos(pos); - else pos = {line: 0, ch: 0}; - this.pos = {from: pos, to: pos}; - - // The matches method is filled in based on the type of query. - // It takes a position and a direction, and returns an object - // describing the next occurrence of the query, or null if no - // more matches were found. - if (typeof query != "string") // Regexp match - this.matches = function(reverse, pos) { - if (reverse) { - var line = lines[pos.line].text.slice(0, pos.ch), match = line.match(query), start = 0; - while (match) { - var ind = line.indexOf(match[0]); - start += ind; - line = line.slice(ind + 1); - var newmatch = line.match(query); - if (newmatch) match = newmatch; - else break; - start++; - } - } - else { - var line = lines[pos.line].text.slice(pos.ch), match = line.match(query), - start = match && pos.ch + line.indexOf(match[0]); - } - if (match) - return {from: {line: pos.line, ch: start}, - to: {line: pos.line, ch: start + match[0].length}, - match: match}; - }; - else { // String query - if (caseFold) query = query.toLowerCase(); - var fold = caseFold ? function(str){return str.toLowerCase();} : function(str){return str;}; - var target = query.split("\n"); - // Different me