X-Git-Url: https://git.mdrn.pl/redakcja.git/blobdiff_plain/3e25eb8de00f8d172b3ed2cfbb236e1e672426a0..78644811ca0c6042212788dc67add42bc41fb74c:/project/static/js/lib/codemirror/editor.js?ds=sidebyside

diff --git a/project/static/js/lib/codemirror/editor.js b/project/static/js/lib/codemirror/editor.js
deleted file mode 100644
index b7c53c70..00000000
--- a/project/static/js/lib/codemirror/editor.js
+++ /dev/null
@@ -1,1314 +0,0 @@
-/* The Editor object manages the content of the editable frame. It
- * catches events, colours nodes, and indents lines. This file also
- * holds some functions for transforming arbitrary DOM structures into
- * plain sequences of <span> and <br> elements
- */
-
-// Make sure a string does not contain two consecutive 'collapseable'
-// whitespace characters.
-function makeWhiteSpace(n) {
-  var buffer = [], nb = true;
-  for (; n > 0; n--) {
-    buffer.push((nb || n == 1) ? nbsp : " ");
-    nb = !nb;
-  }
-  return buffer.join("");
-}
-
-// Create a set of white-space characters that will not be collapsed
-// by the browser, but will not break text-wrapping either.
-function fixSpaces(string) {
-  if (string.charAt(0) == " ") string = nbsp + string.slice(1);
-  return string.replace(/\t/g, function(){return makeWhiteSpace(indentUnit);})
-    .replace(/[ \u00a0]{2,}/g, function(s) {return makeWhiteSpace(s.length);});
-}
-
-function cleanText(text) {
-  return text.replace(/\u00a0/g, " ").replace(/\u200b/g, "");
-}
-
-// Create a SPAN node with the expected properties for document part
-// spans.
-function makePartSpan(value, doc) {
-  var text = value;
-  if (value.nodeType == 3) text = value.nodeValue;
-  else value = doc.createTextNode(text);
-
-  var span = doc.createElement("SPAN");
-  span.isPart = true;
-  span.appendChild(value);
-  span.currentText = text;
-  return span;
-}
-
-// On webkit, when the last BR of the document does not have text
-// behind it, the cursor can not be put on the line after it. This
-// makes pressing enter at the end of the document occasionally do
-// nothing (or at least seem to do nothing). To work around it, this
-// function makes sure the document ends with a span containing a
-// zero-width space character. The traverseDOM iterator filters such
-// character out again, so that the parsers won't see them. This
-// function is called from a few strategic places to make sure the
-// zwsp is restored after the highlighting process eats it.
-var webkitLastLineHack = webkit ?
-  function(container) {
-    var last = container.lastChild;
-    if (!last || !last.isPart || last.textContent != "\u200b")
-      container.appendChild(makePartSpan("\u200b", container.ownerDocument));
-  } : function() {};
-
-var Editor = (function(){
-  // The HTML elements whose content should be suffixed by a newline
-  // when converting them to flat text.
-  var newlineElements = {"P": true, "DIV": true, "LI": true};
-
-  function asEditorLines(string) {
-    var tab = makeWhiteSpace(indentUnit);
-    return map(string.replace(/\t/g, tab).replace(/\u00a0/g, " ").replace(/\r\n?/g, "\n").split("\n"), fixSpaces);
-  }
-
-  // Helper function for traverseDOM. Flattens an arbitrary DOM node
-  // into an array of textnodes and <br> tags.
-  function simplifyDOM(root, atEnd) {
-    var doc = root.ownerDocument;
-    var result = [];
-    var leaving = true;
-
-    function simplifyNode(node, top) {
-      if (node.nodeType == 3) {
-        var text = node.nodeValue = fixSpaces(node.nodeValue.replace(/[\r\u200b]/g, "").replace(/\n/g, " "));
-        if (text.length) leaving = false;
-        result.push(node);
-      }
-      else if (isBR(node) && node.childNodes.length == 0) {
-        leaving = true;
-        result.push(node);
-      }
-      else {
-        forEach(node.childNodes, simplifyNode);
-        if (!leaving && newlineElements.hasOwnProperty(node.nodeName.toUpperCase())) {
-          leaving = true;
-          if (!atEnd || !top)
-            result.push(doc.createElement("BR"));
-        }
-      }
-    }
-
-    simplifyNode(root, true);
-    return result;
-  }
-
-  // Creates a MochiKit-style iterator that goes over a series of DOM
-  // nodes. The values it yields are strings, the textual content of
-  // the nodes. It makes sure that all nodes up to and including the
-  // one whose text is being yielded have been 'normalized' to be just
-  // <span> and <br> elements.
-  // See the story.html file for some short remarks about the use of
-  // continuation-passing style in this iterator.
-  function traverseDOM(start){
-    function yield(value, c){cc = c; return value;}
-    function push(fun, arg, c){return function(){return fun(arg, c);};}
-    function stop(){cc = stop; throw StopIteration;};
-    var cc = push(scanNode, start, stop);
-    var owner = start.ownerDocument;
-    var nodeQueue = [];
-
-    // Create a function that can be used to insert nodes after the
-    // one given as argument.
-    function pointAt(node){
-      var parent = node.parentNode;
-      var next = node.nextSibling;
-      return function(newnode) {
-        parent.insertBefore(newnode, next);
-      };
-    }
-    var point = null;
-
-    // Insert a normalized node at the current point. If it is a text
-    // node, wrap it in a <span>, and give that span a currentText
-    // property -- this is used to cache the nodeValue, because
-    // directly accessing nodeValue is horribly slow on some browsers.
-    // The dirty property is used by the highlighter to determine
-    // which parts of the document have to be re-highlighted.
-    function insertPart(part){
-      var text = "\n";
-      if (part.nodeType == 3) {
-        select.snapshotChanged();
-        part = makePartSpan(part, owner);
-        text = part.currentText;
-      }
-      part.dirty = true;
-      nodeQueue.push(part);
-      point(part);
-      return text;
-    }
-
-    // Extract the text and newlines from a DOM node, insert them into
-    // the document, and yield the textual content. Used to replace
-    // non-normalized nodes.
-    function writeNode(node, c, end) {
-      var toYield = [];
-      forEach(simplifyDOM(node, end), function(part) {
-        toYield.push(insertPart(part));
-      });
-      return yield(toYield.join(""), c);
-    }
-
-    // Check whether a node is a normalized <span> element.
-    function partNode(node){
-      if (node.isPart && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {
-        node.currentText = node.firstChild.nodeValue;
-        return !/[\n\t\r]/.test(node.currentText);
-      }
-      return false;
-    }
-
-    // Handle a node. Add its successor to the continuation if there
-    // is one, find out whether the node is normalized. If it is,
-    // yield its content, otherwise, normalize it (writeNode will take
-    // care of yielding).
-    function scanNode(node, c){
-      if (node.nextSibling)
-        c = push(scanNode, node.nextSibling, c);
-
-      if (partNode(node)){
-        nodeQueue.push(node);
-        return yield(node.currentText, c);
-      }
-      else if (isBR(node)) {
-        nodeQueue.push(node);
-        return yield("\n", c);
-      }
-      else {
-        var end = !node.nextSibling;
-        point = pointAt(node);
-        removeElement(node);
-        return writeNode(node, c, end);
-      }
-    }
-
-    // MochiKit iterators are objects with a next function that
-    // returns the next value or throws StopIteration when there are
-    // no more values.
-    return {next: function(){return cc();}, nodes: nodeQueue};
-  }
-
-  // Determine the text size of a processed node.
-  function nodeSize(node) {
-    return isBR(node) ? 1 : node.currentText.length;
-  }
-
-  // Search backwards through the top-level nodes until the next BR or
-  // the start of the frame.
-  function startOfLine(node) {
-    while (node && !isBR(node)) node = node.previousSibling;
-    return node;
-  }
-  function endOfLine(node, container) {
-    if (!node) node = container.firstChild;
-    else if (isBR(node)) node = node.nextSibling;
-
-    while (node && !isBR(node)) node = node.nextSibling;
-    return node;
-  }
-
-  function time() {return new Date().getTime();}
-
-  // Client interface for searching the content of the editor. Create
-  // these by calling CodeMirror.getSearchCursor. To use, call
-  // findNext on the resulting object -- this returns a boolean
-  // indicating whether anything was found, and can be called again to
-  // skip to the next find. Use the select and replace methods to
-  // actually do something with the found locations.
-  function SearchCursor(editor, string, fromCursor) {
-    this.editor = editor;
-    this.history = editor.history;
-    this.history.commit();
-
-    // Are we currently at an occurrence of the search string?
-    this.atOccurrence = false;
-    // The object stores a set of nodes coming after its current
-    // position, so that when the current point is taken out of the
-    // DOM tree, we can still try to continue.
-    this.fallbackSize = 15;
-    var cursor;
-    // Start from the cursor when specified and a cursor can be found.
-    if (fromCursor && (cursor = select.cursorPos(this.editor.container))) {
-      this.line = cursor.node;
-      this.offset = cursor.offset;
-    }
-    else {
-      this.line = null;
-      this.offset = 0;
-    }
-    this.valid = !!string;
-
-    // Create a matcher function based on the kind of string we have.
-    var target = string.split("\n"), self = this;
-    this.matches = (target.length == 1) ?
-      // For one-line strings, searching can be done simply by calling
-      // indexOf on the current line.
-      function() {
-        var match = cleanText(self.history.textAfter(self.line).slice(self.offset)).indexOf(string);
-        if (match > -1)
-          return {from: {node: self.line, offset: self.offset + match},
-                  to: {node: self.line, offset: self.offset + match + string.length}};
-      } :
-      // Multi-line strings require internal iteration over lines, and
-      // some clunky checks to make sure the first match ends at the
-      // end of the line and the last match starts at the start.
-      function() {
-        var firstLine = cleanText(self.history.textAfter(self.line).slice(self.offset));
-        var match = firstLine.lastIndexOf(target[0]);
-        if (match == -1 || match != firstLine.length - target[0].length)
-          return false;
-        var startOffset = self.offset + match;
-
-        var line = self.history.nodeAfter(self.line);
-        for (var i = 1; i < target.length - 1; i++) {
-          if (cleanText(self.history.textAfter(line)) != target[i])
-            return false;
-          line = self.history.nodeAfter(line);
-        }
-
-        if (cleanText(self.history.textAfter(line)).indexOf(target[target.length - 1]) != 0)
-          return false;
-
-        return {from: {node: self.line, offset: startOffset},
-                to: {node: line, offset: target[target.length - 1].length}};
-      };
-  }
-
-  SearchCursor.prototype = {
-    findNext: function() {
-      if (!this.valid) return false;
-      this.atOccurrence = false;
-      var self = this;
-
-      // Go back to the start of the document if the current line is
-      // no longer in the DOM tree.
-      if (this.line && !this.line.parentNode) {
-        this.line = null;
-        this.offset = 0;
-      }
-
-      // Set the cursor's position one character after the given
-      // position.
-      function saveAfter(pos) {
-        if (self.history.textAfter(pos.node).length > pos.offset) {
-          self.line = pos.node;
-          self.offset = pos.offset + 1;
-        }
-        else {
-          self.line = self.history.nodeAfter(pos.node);
-          self.offset = 0;
-        }
-      }
-
-      while (true) {
-        var match = this.matches();
-        // Found the search string.
-        if (match) {
-          this.atOccurrence = match;
-          saveAfter(match.from);
-          return true;
-        }
-        this.line = this.history.nodeAfter(this.line);
-        this.offset = 0;
-        // End of document.
-        if (!this.line) {
-          this.valid = false;
-          return false;
-        }
-      }
-    },
-
-    select: function() {
-      if (this.atOccurrence) {
-        select.setCursorPos(this.editor.container, this.atOccurrence.from, this.atOccurrence.to);
-        select.scrollToCursor(this.editor.container);
-      }
-    },
-
-    replace: function(string) {
-      if (this.atOccurrence) {
-        var end = this.editor.replaceRange(this.atOccurrence.from, this.atOccurrence.to, string);
-        this.line = end.node;
-        this.offset = end.offset;
-        this.atOccurrence = false;
-      }
-    }
-  };
-
-  // The Editor object is the main inside-the-iframe interface.
-  function Editor(options) {
-    this.options = options;
-    window.indentUnit = options.indentUnit;
-    this.parent = parent;
-    this.doc = document;
-    var container = this.container = this.doc.body;
-    this.win = window;
-    this.history = new History(container, options.undoDepth, options.undoDelay,
-                               this, options.onChange);
-    var self = this;
-
-    if (!Editor.Parser)
-      throw "No parser loaded.";
-    if (options.parserConfig && Editor.Parser.configure)
-      Editor.Parser.configure(options.parserConfig);
-
-    if (!options.readOnly)
-      select.setCursorPos(container, {node: null, offset: 0});
-
-    this.dirty = [];
-    if (options.content)
-      this.importCode(options.content);
-
-    if (!options.readOnly) {
-      if (options.continuousScanning !== false) {
-        this.scanner = this.documentScanner(options.passTime);
-        this.delayScanning();
-      }
-
-      function setEditable() {
-        // In IE, designMode frames can not run any scripts, so we use
-        // contentEditable instead.
-        if (document.body.contentEditable != undefined && internetExplorer)
-          document.body.contentEditable = "true";
-        else
-          document.designMode = "on";
-
-        document.documentElement.style.borderWidth = "0";
-        if (!options.textWrapping)
-          container.style.whiteSpace = "nowrap";
-      }
-
-      // If setting the frame editable fails, try again when the user
-      // focus it (happens when the frame is not visible on
-      // initialisation, in Firefox).
-      try {
-        setEditable();
-      }
-      catch(e) {
-        var focusEvent = addEventHandler(document, "focus", function() {
-          focusEvent();
-          setEditable();
-        }, true);
-      }
-
-      addEventHandler(document, "keydown", method(this, "keyDown"));
-      addEventHandler(document, "keypress", method(this, "keyPress"));
-      addEventHandler(document, "keyup", method(this, "keyUp"));
-
-      function cursorActivity() {self.cursorActivity(false);}
-      addEventHandler(document.body, "mouseup", cursorActivity);
-      addEventHandler(document.body, "cut", cursorActivity);
-
-      addEventHandler(document.body, "paste", function(event) {
-        cursorActivity();
-        var text = null;
-        try {
-          var clipboardData = event.clipboardData || window.clipboardData;
-          if (clipboardData) text = clipboardData.getData('Text');
-        }
-        catch(e) {}
-        if (text !== null) {
-          self.replaceSelection(text);
-          event.stop();
-        }
-      });
-
-      addEventHandler(document.body, "beforepaste", method(this, "reroutePasteEvent"));
-
-      if (this.options.autoMatchParens)
-        addEventHandler(document.body, "click", method(this, "scheduleParenBlink"));
-    }
-    else if (!options.textWrapping) {
-      container.style.whiteSpace = "nowrap";
-    }
-  }
-
-  function isSafeKey(code) {
-    return (code >= 16 && code <= 18) || // shift, control, alt
-           (code >= 33 && code <= 40); // arrows, home, end
-  }
-
-  Editor.prototype = {
-    // Import a piece of code into the editor.
-    importCode: function(code) {
-      this.history.push(null, null, asEditorLines(code));
-      this.history.reset();
-    },
-
-    // Extract the code from the editor.
-    getCode: function() {
-      if (!this.container.firstChild)
-        return "";
-
-      var accum = [];
-      select.markSelection(this.win);
-      forEach(traverseDOM(this.container.firstChild), method(accum, "push"));
-      webkitLastLineHack(this.container);
-      select.selectMarked();
-      return cleanText(accum.join(""));
-    },
-
-    checkLine: function(node) {
-      if (node === false || !(node == null || node.parentNode == this.container))
-        throw parent.CodeMirror.InvalidLineHandle;
-    },
-
-    cursorPosition: function(start) {
-      if (start == null) start = true;
-      var pos = select.cursorPos(this.container, start);
-      if (pos) return {line: pos.node, character: pos.offset};
-      else return {line: null, character: 0};
-    },
-
-    firstLine: function() {
-      return null;
-    },
-
-    lastLine: function() {
-      if (this.container.lastChild) return startOfLine(this.container.lastChild);
-      else return null;
-    },
-
-    nextLine: function(line) {
-      this.checkLine(line);
-      var end = endOfLine(line, this.container);
-      return end || false;
-    },
-
-    prevLine: function(line) {
-      this.checkLine(line);
-      if (line == null) return false;
-      return startOfLine(line.previousSibling);
-    },
-
-    selectLines: function(startLine, startOffset, endLine, endOffset) {
-      this.checkLine(startLine);
-      var start = {node: startLine, offset: startOffset}, end = null;
-      if (endOffset !== undefined) {
-        this.checkLine(endLine);
-        end = {node: endLine, offset: endOffset};
-      }
-      select.setCursorPos(this.container, start, end);
-      select.scrollToCursor(this.container);
-    },
-
-    lineContent: function(line) {
-      this.checkLine(line);
-      var accum = [];
-      for (line = line ? line.nextSibling : this.container.firstChild;
-           line && !isBR(line); line = line.nextSibling)
-        accum.push(nodeText(line));
-      return cleanText(accum.join(""));
-    },
-
-    setLineContent: function(line, content) {
-      this.history.commit();
-      this.replaceRange({node: line, offset: 0},
-                        {node: line, offset: this.history.textAfter(line).length},
-                        content);
-      this.addDirtyNode(line);
-      this.scheduleHighlight();
-    },
-
-    insertIntoLine: function(line, position, content) {
-      var before = null;
-      if (position == "end") {
-        before = endOfLine(line, this.container);
-      }
-      else {
-        for (var cur = line ? line.nextSibling : this.container.firstChild; cur; cur = cur.nextSibling) {
-          if (position == 0) {
-            before = cur;
-            break;
-          }
-          var text = nodeText(cur);
-          if (text.length > position) {
-            before = cur.nextSibling;
-            content = text.slice(0, position) + content + text.slice(position);
-            removeElement(cur);
-            break;
-          }
-          position -= text.length;
-        }
-      }
-
-      var lines = asEditorLines(content), doc = this.container.ownerDocument;
-      for (var i = 0; i < lines.length; i++) {
-        if (i > 0) this.container.insertBefore(doc.createElement("BR"), before);
-        this.container.insertBefore(makePartSpan(lines[i], doc), before);
-      }
-      this.addDirtyNode(line);
-      this.scheduleHighlight();
-    },
-
-    // Retrieve the selected text.
-    selectedText: function() {
-      var h = this.history;
-      h.commit();
-
-      var start = select.cursorPos(this.container, true),
-          end = select.cursorPos(this.container, false);
-      if (!start || !end) return "";
-
-      if (start.node == end.node)
-        return h.textAfter(start.node).slice(start.offset, end.offset);
-
-      var text = [h.textAfter(start.node).slice(start.offset)];
-      for (var pos = h.nodeAfter(start.node); pos != end.node; pos = h.nodeAfter(pos))
-        text.push(h.textAfter(pos));
-      text.push(h.textAfter(end.node).slice(0, end.offset));
-      return cleanText(text.join("\n"));
-    },
-
-    // Replace the selection with another piece of text.
-    replaceSelection: function(text) {
-      this.history.commit();
-
-      var start = select.cursorPos(this.container, true),
-          end = select.cursorPos(this.container, false);
-      if (!start || !end) return;
-
-      end = this.replaceRange(start, end, text);
-      select.setCursorPos(this.container, end);
-      webkitLastLineHack(this.container);
-    },
-
-    reroutePasteEvent: function() {
-      if (this.capturingPaste || window.opera) return;
-      this.capturingPaste = true;
-      var te = parent.document.createElement("TEXTAREA");
-      te.style.position = "absolute";
-      te.style.left = "-500px";
-      te.style.width = "10px";
-      te.style.top = nodeTop(frameElement) + "px";
-      parent.document.body.appendChild(te);
-      parent.focus();
-      te.focus();
-
-      var self = this;
-      this.parent.setTimeout(function() {
-        self.capturingPaste = false;
-        self.win.focus();
-        if (self.selectionSnapshot) // IE hack
-          self.win.select.selectCoords(self.win, self.selectionSnapshot);
-        var text = te.value;
-        if (text) self.replaceSelection(text);
-        removeElement(te);
-      }, 10);
-    },
-
-    replaceRange: function(from, to, text) {
-      var lines = asEditorLines(text);
-      lines[0] = this.history.textAfter(from.node).slice(0, from.offset) + lines[0];
-      var lastLine = lines[lines.length - 1];
-      lines[lines.length - 1] = lastLine + this.history.textAfter(to.node).slice(to.offset);
-      var end = this.history.nodeAfter(to.node);
-      this.history.push(from.node, end, lines);
-      return {node: this.history.nodeBefore(end),
-              offset: lastLine.length};
-    },
-
-    getSearchCursor: function(string, fromCursor) {
-      return new SearchCursor(this, string, fromCursor);
-    },
-
-    // Re-indent the whole buffer
-    reindent: function() {
-      if (this.container.firstChild)
-        this.indentRegion(null, this.container.lastChild);
-    },
-
-    reindentSelection: function(direction) {
-      if (!select.somethingSelected(this.win)) {
-        this.indentAtCursor(direction);
-      }
-      else {
-        var start = select.selectionTopNode(this.container, true),
-            end = select.selectionTopNode(this.container, false);
-        if (start === false || end === false) return;
-        this.indentRegion(start, end, direction);
-      }
-    },
-
-    grabKeys: function(eventHandler, filter) {
-      this.frozen = eventHandler;
-      this.keyFilter = filter;
-    },
-    ungrabKeys: function() {
-      this.frozen = "leave";
-      this.keyFilter = null;
-    },
-
-    setParser: function(name) {
-      Editor.Parser = window[name];
-      if (this.container.firstChild) {
-        forEach(this.container.childNodes, function(n) {
-          if (n.nodeType != 3) n.dirty = true;
-        });
-        this.addDirtyNode(this.firstChild);
-        this.scheduleHighlight();
-      }
-    },
-
-    // Intercept enter and tab, and assign their new functions.
-    keyDown: function(event) {
-      if (this.frozen == "leave") this.frozen = null;
-      if (this.frozen && (!this.keyFilter || this.keyFilter(event.keyCode))) {
-        event.stop();
-        this.frozen(event);
-        return;
-      }
-
-      var code = event.keyCode;
-      // Don't scan when the user is typing.
-      this.delayScanning();
-      // Schedule a paren-highlight event, if configured.
-      if (this.options.autoMatchParens)
-        this.scheduleParenBlink();
-
-      // The various checks for !altKey are there because AltGr sets both
-      // ctrlKey and altKey to true, and should not be recognised as
-      // Control.
-      if (code == 13) { // enter
-        if (event.ctrlKey && !event.altKey) {
-          this.reparseBuffer();
-        }
-        else {
-          select.insertNewlineAtCursor(this.win);
-          this.indentAtCursor();
-          select.scrollToCursor(this.container);
-        }
-        event.stop();
-      }
-      else if (code == 9 && this.options.tabMode != "default") { // tab
-        this.handleTab(!event.ctrlKey && !event.shiftKey);
-        event.stop();
-      }
-      else if (code == 32 && event.shiftKey && this.options.tabMode == "default") { // space
-        this.handleTab(true);
-        event.stop();
-      }
-      else if (code == 36 && !event.shiftKey && !event.ctrlKey) { // home
-        if (this.home())
-          event.stop();
-      }
-      else if ((code == 219 || code == 221) && event.ctrlKey && !event.altKey) { // [, ]
-        this.blinkParens(event.shiftKey);
-        event.stop();
-      }
-      else if (event.metaKey && !event.shiftKey && (code == 37 || code == 39)) { // Meta-left/right
-        var cursor = select.selectionTopNode(this.container);
-        if (cursor === false || !this.container.firstChild) return;
-
-        if (code == 37) select.focusAfterNode(startOfLine(cursor), this.container);
-        else {
-          var end = endOfLine(cursor, this.container);
-          select.focusAfterNode(end ? end.previousSibling : this.container.lastChild, this.container);
-        }
-        event.stop();
-      }
-      else if ((event.ctrlKey || event.metaKey) && !event.altKey) {
-        if ((event.shiftKey && code == 90) || code == 89) { // shift-Z, Y
-          select.scrollToNode(this.history.redo());
-          event.stop();
-        }
-        else if (code == 90 || (safari && code == 8)) { // Z, backspace
-          select.scrollToNode(this.history.undo());
-          event.stop();
-        }
-        else if (code == 83 && this.options.saveFunction) { // S
-          this.options.saveFunction();
-          event.stop();
-        }
-      }
-    },
-
-    // Check for characters that should re-indent the current line,
-    // and prevent Opera from handling enter and tab anyway.
-    keyPress: function(event) {
-      var electric = Editor.Parser.electricChars, self = this;
-      // Hack for Opera, and Firefox on OS X, in which stopping a
-      // keydown event does not prevent the associated keypress event
-      // from happening, so we have to cancel enter and tab again
-      // here.
-      if ((this.frozen && (!this.keyFilter || this.keyFilter(event.keyCode))) ||
-          event.code == 13 || (event.code == 9 && this.options.tabMode != "default") ||
-          (event.keyCode == 32 && event.shiftKey && this.options.tabMode == "default"))
-        event.stop();
-      else if (electric && electric.indexOf(event.character) != -1)
-        this.parent.setTimeout(function(){self.indentAtCursor(null);}, 0);
-      else if ((event.character == "v" || event.character == "V")
-               && (event.ctrlKey || event.metaKey) && !event.altKey) // ctrl-V
-        this.reroutePasteEvent();
-    },
-
-    // Mark the node at the cursor dirty when a non-safe key is
-    // released.
-    keyUp: function(event) {
-      this.cursorActivity(isSafeKey(event.keyCode));
-    },
-
-    // Indent the line following a given <br>, or null for the first
-    // line. If given a <br> element, this must have been highlighted
-    // so that it has an indentation method. Returns the whitespace
-    // element that has been modified or created (if any).
-    indentLineAfter: function(start, direction) {
-      // whiteSpace is the whitespace span at the start of the line,
-      // or null if there is no such node.
-      var whiteSpace = start ? start.nextSibling : this.container.firstChild;
-      if (whiteSpace && !hasClass(whiteSpace, "whitespace"))
-        whiteSpace = null;
-
-      // Sometimes the start of the line can influence the correct
-      // indentation, so we retrieve it.
-      var firstText = whiteSpace ? whiteSpace.nextSibling : (start ? start.nextSibling : this.container.firstChild);
-      var nextChars = (start && firstText && firstText.currentText) ? firstText.currentText : "";
-
-      // Ask the lexical context for the correct indentation, and
-      // compute how much this differs from the current indentation.
-      var newIndent = 0, curIndent = whiteSpace ? whiteSpace.currentText.length : 0;
-      if (direction != null && this.options.tabMode == "shift")
-        newIndent = direction ? curIndent + indentUnit : Math.max(0, curIndent - indentUnit)
-      else if (start)
-        newIndent = start.indentation(nextChars, curIndent, direction);
-      else if (Editor.Parser.firstIndentation)
-        newIndent = Editor.Parser.firstIndentation(nextChars, curIndent, direction);
-      var indentDiff = newIndent - curIndent;
-
-      // If there is too much, this is just a matter of shrinking a span.
-      if (indentDiff < 0) {
-        if (newIndent == 0) {
-          if (firstText) select.snapshotMove(whiteSpace.firstChild, firstText.firstChild, 0);
-          removeElement(whiteSpace);
-          whiteSpace = null;
-        }
-        else {
-          select.snapshotMove(whiteSpace.firstChild, whiteSpace.firstChild, indentDiff, true);
-          whiteSpace.currentText = makeWhiteSpace(newIndent);
-          whiteSpace.firstChild.nodeValue = whiteSpace.currentText;
-        }
-      }
-      // Not enough...
-      else if (indentDiff > 0) {
-        // If there is whitespace, we grow it.
-        if (whiteSpace) {
-          whiteSpace.currentText = makeWhiteSpace(newIndent);
-          whiteSpace.firstChild.nodeValue = whiteSpace.currentText;
-        }
-        // Otherwise, we have to add a new whitespace node.
-        else {
-          whiteSpace = makePartSpan(makeWhiteSpace(newIndent), this.doc);
-          whiteSpace.className = "whitespace";
-          if (start) insertAfter(whiteSpace, start);
-          else this.container.insertBefore(whiteSpace, this.container.firstChild);
-        }
-        if (firstText) select.snapshotMove(firstText.firstChild, whiteSpace.firstChild, curIndent, false, true);
-      }
-      if (indentDiff != 0) this.addDirtyNode(start);
-      return whiteSpace;
-    },
-
-    // Re-highlight the selected part of the document.
-    highlightAtCursor: function() {
-      var pos = select.selectionTopNode(this.container, true);
-      var to = select.selectionTopNode(this.container, false);
-      if (pos === false || to === false) return;
-
-      select.markSelection(this.win);
-      if (this.highlight(pos, endOfLine(to, this.container), true, 20) === false)
-        return false;
-      select.selectMarked();
-      return true;
-    },
-
-    // When tab is pressed with text selected, the whole selection is
-    // re-indented, when nothing is selected, the line with the cursor
-    // is re-indented.
-    handleTab: function(direction) {
-      if (this.options.tabMode == "spaces")
-        select.insertTabAtCursor(this.win);
-      else
-        this.reindentSelection(direction);
-    },
-
-    home: function() {
-      var cur = select.selectionTopNode(this.container, true), start = cur;
-      if (cur === false || !(!cur || cur.isPart || isBR(cur)) || !this.container.firstChild)
-        return false;
-
-      while (cur && !isBR(cur)) cur = cur.previousSibling;
-      var next = cur ? cur.nextSibling : this.container.firstChild;
-      if (next && next != start && next.isPart && hasClass(next, "whitespace"))
-        select.focusAfterNode(next, this.container);
-      else
-        select.focusAfterNode(cur, this.container);
-
-      select.scrollToCursor(this.container);
-      return true;
-    },
-
-    // Delay (or initiate) the next paren blink event.
-    scheduleParenBlink: function() {
-      if (this.parenEvent) this.parent.clearTimeout(this.parenEvent);
-      var self = this;
-      this.parenEvent = this.parent.setTimeout(function(){self.blinkParens();}, 300);
-    },
-
-    // Take the token before the cursor. If it contains a character in
-    // '()[]{}', search for the matching paren/brace/bracket, and
-    // highlight them in green for a moment, or red if no proper match
-    // was found.
-    blinkParens: function(jump) {
-      if (!window.select) return;
-      // Clear the event property.
-      if (this.parenEvent) this.parent.clearTimeout(this.parenEvent);
-      this.parenEvent = null;
-
-      // Extract a 'paren' from a piece of text.
-      function paren(node) {
-        if (node.currentText) {
-          var match = node.currentText.match(/^[\s\u00a0]*([\(\)\[\]{}])[\s\u00a0]*$/);
-          return match && match[1];
-        }
-      }
-      // Determine the direction a paren is facing.
-      function forward(ch) {
-        return /[\(\[\{]/.test(ch);
-      }
-
-      var ch, self = this, cursor = select.selectionTopNode(this.container, true);
-      if (!cursor || !this.highlightAtCursor()) return;
-      cursor = select.selectionTopNode(this.container, true);
-      if (!(cursor && ((ch = paren(cursor)) || (cursor = cursor.nextSibling) && (ch = paren(cursor)))))
-        return;
-      // We only look for tokens with the same className.
-      var className = cursor.className, dir = forward(ch), match = matching[ch];
-
-      // Since parts of the document might not have been properly
-      // highlighted, and it is hard to know in advance which part we
-      // have to scan, we just try, and when we find dirty nodes we
-      // abort, parse them, and re-try.
-      function tryFindMatch() {
-        var stack = [], ch, ok = true;;
-        for (var runner = cursor; runner; runner = dir ? runner.nextSibling : runner.previousSibling) {
-          if (runner.className == className && isSpan(runner) && (ch = paren(runner))) {
-            if (forward(ch) == dir)
-              stack.push(ch);
-            else if (!stack.length)
-              ok = false;
-            else if (stack.pop() != matching[ch])
-              ok = false;
-            if (!stack.length) break;
-          }
-          else if (runner.dirty || !isSpan(runner) && !isBR(runner)) {
-            return {node: runner, status: "dirty"};
-          }
-        }
-        return {node: runner, status: runner && ok};
-      }
-      // Temporarily give the relevant nodes a colour.
-      function blink(node, ok) {
-        node.style.fontWeight = "bold";
-        node.style.color = ok ? "#8F8" : "#F88";
-        self.parent.setTimeout(function() {node.style.fontWeight = ""; node.style.color = "";}, 500);
-      }
-
-      while (true) {
-        var found = tryFindMatch();
-        if (found.status == "dirty") {
-          this.highlight(found.node, endOfLine(found.node));
-          // Needed because in some corner cases a highlight does not
-          // reach a node.
-          found.node.dirty = false;
-          continue;
-        }
-        else {
-          blink(cursor, found.status);
-          if (found.node) {
-            blink(found.node, found.status);
-            if (jump) select.focusAfterNode(found.node.previousSibling, this.container);
-          }
-          break;
-        }
-      }
-    },
-
-    // Adjust the amount of whitespace at the start of the line that
-    // the cursor is on so that it is indented properly.
-    indentAtCursor: function(direction) {
-      if (!this.container.firstChild) return;
-      // The line has to have up-to-date lexical information, so we
-      // highlight it first.
-      if (!this.highlightAtCursor()) return;
-      var cursor = select.selectionTopNode(this.container, false);
-      // If we couldn't determine the place of the cursor,
-      // there's nothing to indent.
-      if (cursor === false)
-        return;
-      var lineStart = startOfLine(cursor);
-      var whiteSpace = this.indentLineAfter(lineStart, direction);
-      if (cursor == lineStart && whiteSpace)
-          cursor = whiteSpace;
-      // This means the indentation has probably messed up the cursor.
-      if (cursor == whiteSpace)
-        select.focusAfterNode(cursor, this.container);
-    },
-
-    // Indent all lines whose start falls inside of the current
-    // selection.
-    indentRegion: function(start, end, direction) {
-      var current = (start = startOfLine(start)), before = start && startOfLine(start.previousSibling);
-      if (!isBR(end)) end = endOfLine(end, this.container);
-
-      do {
-        var next = endOfLine(current, this.container);
-        if (current) this.highlight(before, next, true);
-        this.indentLineAfter(current, direction);
-        before = current;
-        current = next;
-      } while (current != end);
-      select.setCursorPos(this.container, {node: start, offset: 0}, {node: end, offset: 0});
-    },
-
-    // Find the node that the cursor is in, mark it as dirty, and make
-    // sure a highlight pass is scheduled.
-    cursorActivity: function(safe) {
-      if (internetExplorer) {
-        this.container.createTextRange().execCommand("unlink");
-        this.selectionSnapshot = select.selectionCoords(this.win);
-      }
-
-      var activity = this.options.cursorActivity;
-      if (!safe || activity) {
-        var cursor = select.selectionTopNode(this.container, false);
-        if (cursor === false || !this.container.firstChild) return;
-        cursor = cursor || this.container.firstChild;
-        if (activity) activity(cursor);
-        if (!safe) {
-          this.scheduleHighlight();
-          this.addDirtyNode(cursor);
-        }
-      }
-    },
-
-    reparseBuffer: function() {
-      forEach(this.container.childNodes, function(node) {node.dirty = true;});
-      if (this.container.firstChild)
-        this.addDirtyNode(this.container.firstChild);
-    },
-
-    // Add a node to the set of dirty nodes, if it isn't already in
-    // there.
-    addDirtyNode: function(node) {
-      node = node || this.container.firstChild;
-      if (!node) return;
-
-      for (var i = 0; i < this.dirty.length; i++)
-        if (this.dirty[i] == node) return;
-
-      if (node.nodeType != 3)
-        node.dirty = true;
-      this.dirty.push(node);
-    },
-
-    // Cause a highlight pass to happen in options.passDelay
-    // milliseconds. Clear the existing timeout, if one exists. This
-    // way, the passes do not happen while the user is typing, and
-    // should as unobtrusive as possible.
-    scheduleHighlight: function() {
-      // Timeouts are routed through the parent window, because on
-      // some browsers designMode windows do not fire timeouts.
-      var self = this;
-      this.parent.clearTimeout(this.highlightTimeout);
-      this.highlightTimeout = this.parent.setTimeout(function(){self.highlightDirty();}, this.options.passDelay);
-    },
-
-    // Fetch one dirty node, and remove it from the dirty set.
-    getDirtyNode: function() {
-      while (this.dirty.length > 0) {
-        var found = this.dirty.pop();
-        // IE8 sometimes throws an unexplainable 'invalid argument'
-        // exception for found.parentNode
-        try {
-          // If the node has been coloured in the meantime, or is no
-          // longer in the document, it should not be returned.
-          while (found && found.parentNode != this.container)
-            found = found.parentNode
-          if (found && (found.dirty || found.nodeType == 3))
-            return found;
-        } catch (e) {}
-      }
-      return null;
-    },
-
-    // Pick dirty nodes, and highlight them, until options.passTime
-    // milliseconds have gone by. The highlight method will continue
-    // to next lines as long as it finds dirty nodes. It returns
-    // information about the place where it stopped. If there are
-    // dirty nodes left after this function has spent all its lines,
-    // it shedules another highlight to finish the job.
-    highlightDirty: function(force) {
-      // Prevent FF from raising an error when it is firing timeouts
-      // on a page that's no longer loaded.
-      if (!window.select) return;
-
-      if (!this.options.readOnly) select.markSelection(this.win);
-      var start, endTime = force ? null : time() + this.options.passTime;
-      while ((time() < endTime || force) && (start = this.getDirtyNode())) {
-        var result = this.highlight(start, endTime);
-        if (result && result.node && result.dirty)
-          this.addDirtyNode(result.node);
-      }
-      if (!this.options.readOnly) select.selectMarked();
-      if (start) this.scheduleHighlight();
-      return this.dirty.length == 0;
-    },
-
-    // Creates a function that, when called through a timeout, will
-    // continuously re-parse the document.
-    documentScanner: function(passTime) {
-      var self = this, pos = null;
-      return function() {
-        // FF timeout weirdness workaround.
-        if (!window.select) return;
-        // If the current node is no longer in the document... oh
-        // well, we start over.
-        if (pos && pos.parentNode != self.container)
-          pos = null;
-        select.markSelection(self.win);
-        var result = self.highlight(pos, time() + passTime, true);
-        select.selectMarked();
-        var newPos = result ? (result.node && result.node.nextSibling) : null;
-        pos = (pos == newPos) ? null : newPos;
-        self.delayScanning();
-      };
-    },
-
-    // Starts the continuous scanning process for this document after
-    // a given interval.
-    delayScanning: function() {
-      if (this.scanner) {
-        this.parent.clearTimeout(this.documentScan);
-        this.documentScan = this.parent.setTimeout(this.scanner, this.options.continuousScanning);
-      }
-    },
-
-    // The function that does the actual highlighting/colouring (with
-    // help from the parser and the DOM normalizer). Its interface is
-    // rather overcomplicated, because it is used in different
-    // situations: ensuring that a certain line is highlighted, or
-    // highlighting up to X milliseconds starting from a certain
-    // point. The 'from' argument gives the node at which it should
-    // start. If this is null, it will start at the beginning of the
-    // document. When a timestamp is given with the 'target' argument,
-    // it will stop highlighting at that time. If this argument holds
-    // a DOM node, it will highlight until it reaches that node. If at
-    // any time it comes across two 'clean' lines (no dirty nodes), it
-    // will stop, except when 'cleanLines' is true. maxBacktrack is
-    // the maximum number of lines to backtrack to find an existing
-    // parser instance. This is used to give up in situations where a
-    // highlight would take too long and freeze the browser interface.
-    highlight: function(from, target, cleanLines, maxBacktrack){
-      var container = this.container, self = this, active = this.options.activeTokens;
-      var endTime = (typeof target == "number" ? target : null);
-
-      if (!container.firstChild)
-        return;
-      // Backtrack to the first node before from that has a partial
-      // parse stored.
-      while (from && (!from.parserFromHere || from.dirty)) {
-        if (maxBacktrack != null && isBR(from) && (--maxBacktrack) < 0)
-          return false;
-        from = from.previousSibling;
-      }
-      // If we are at the end of the document, do nothing.
-      if (from && !from.nextSibling)
-        return;
-
-      // Check whether a part (<span> node) and the corresponding token
-      // match.
-      function correctPart(token, part){
-        return !part.reduced && part.currentText == token.value && part.className == token.style;
-      }
-      // Shorten the text associated with a part by chopping off
-      // characters from the front. Note that only the currentText
-      // property gets changed. For efficiency reasons, we leave the
-      // nodeValue alone -- we set the reduced flag to indicate that
-      // this part must be replaced.
-      function shortenPart(part, minus){
-        part.currentText = part.currentText.substring(minus);
-        part.reduced = true;
-      }
-      // Create a part corresponding to a given token.
-      function tokenPart(token){
-        var part = makePartSpan(token.value, self.doc);     
-        part.className = token.style;
-        return part;
-      }
-
-      function maybeTouch(node) {
-        if (node) {
-          var old = node.oldNextSibling;
-          if (lineDirty || old === undefined || node.nextSibling != old)
-            self.history.touch(node);
-          node.oldNextSibling = node.nextSibling;
-        }
-        else {
-          var old = self.container.oldFirstChild;
-          if (lineDirty || old === undefined || self.container.firstChild != old)
-            self.history.touch(null);
-          self.container.oldFirstChild = self.container.firstChild;
-        }
-      }
-
-      // Get the token stream. If from is null, we start with a new
-      // parser from the start of the frame, otherwise a partial parse
-      // is resumed.
-      var traversal = traverseDOM(from ? from.nextSibling : container.firstChild),
-          stream = stringStream(traversal),
-          parsed = from ? from.parserFromHere(stream) : Editor.Parser.make(stream);
-
-      // parts is an interface to make it possible to 'delay' fetching
-      // the next DOM node until we are completely done with the one
-      // before it. This is necessary because often the next node is
-      // not yet available when we want to proceed past the current
-      // one.
-      var parts = {
-        current: null,
-        // Fetch current node.
-        get: function(){
-          if (!this.current)
-            this.current = traversal.nodes.shift();
-          return this.current;
-        },
-        // Advance to the next part (do not fetch it yet).
-        next: function(){
-          this.current = null;
-        },
-        // Remove the current part from the DOM tree, and move to the
-        // next.
-        remove: function(){
-          container.removeChild(this.get());
-          this.current = null;
-        },
-        // Advance to the next part that is not empty, discarding empty
-        // parts.
-        getNonEmpty: function(){
-          var part = this.get();
-          // Allow empty nodes when they are alone on a line, needed
-          // for the FF cursor bug workaround (see select.js,
-          // insertNewlineAtCursor).
-          while (part && isSpan(part) && part.currentText == "") {
-            var old = part;
-            this.remove();
-            part = this.get();
-            // Adjust selection information, if any. See select.js for details.
-            select.snapshotMove(old.firstChild, part && (part.firstChild || part), 0);
-          }
-          return part;
-        }
-      };
-
-      var lineDirty = false, prevLineDirty = true, lineNodes = 0;
-
-      // This forEach loops over the tokens from the parsed stream, and
-      // at the same time uses the parts object to proceed through the
-      // corresponding DOM nodes.
-      forEach(parsed, function(token){
-        var part = parts.getNonEmpty();
-
-        if (token.value == "\n"){
-          // The idea of the two streams actually staying synchronized
-          // is such a long shot that we explicitly check.
-          if (!isBR(part))
-            throw "Parser out of sync. Expected BR.";
-
-          if (part.dirty || !part.indentation) lineDirty = true;
-          maybeTouch(from);
-          from = part;
-
-          // Every <br> gets a copy of the parser state and a lexical
-          // context assigned to it. The first is used to be able to
-          // later resume parsing from this point, the second is used
-          // for indentation.
-          part.parserFromHere = parsed.copy();
-          part.indentation = token.indentation;
-          part.dirty = false;
-
-          // If the target argument wasn't an integer, go at least
-          // until that node.
-          if (endTime == null && part == target) throw StopIteration;
-
-          // A clean line with more than one node means we are done.
-          // Throwing a StopIteration is the way to break out of a
-          // MochiKit forEach loop.
-          if ((endTime != null && time() >= endTime) || (!lineDirty && !prevLineDirty && lineNodes > 1 && !cleanLines))
-            throw StopIteration;
-          prevLineDirty = lineDirty; lineDirty = false; lineNodes = 0;
-          parts.next();
-        }
-        else {
-          if (!isSpan(part))
-            throw "Parser out of sync. Expected SPAN.";
-          if (part.dirty)
-            lineDirty = true;
-          lineNodes++;
-
-          // If the part matches the token, we can leave it alone.
-          if (correctPart(token, part)){
-            part.dirty = false;
-            parts.next();
-          }
-          // Otherwise, we have to fix it.
-          else {
-            lineDirty = true;
-            // Insert the correct part.
-            var newPart = tokenPart(token);
-            container.insertBefore(newPart, part);
-            if (active) active(newPart, token, self);
-            var tokensize = token.value.length;
-            var offset = 0;
-            // Eat up parts until the text for this token has been
-            // removed, adjusting the stored selection info (see
-            // select.js) in the process.
-            while (tokensize > 0) {
-              part = parts.get();
-              var partsize = part.currentText.length;
-              select.snapshotReplaceNode(part.firstChild, newPart.firstChild, tokensize, offset);
-              if (partsize > tokensize){
-                shortenPart(part, tokensize);
-                tokensize = 0;
-              }
-              else {
-                tokensize -= partsize;
-                offset += partsize;
-                parts.remove();
-              }
-            }
-          }
-        }
-      });
-      maybeTouch(from);
-      webkitLastLineHack(this.container);
-
-      // The function returns some status information that is used by
-      // hightlightDirty to determine whether and where it has to
-      // continue.
-      return {node: parts.getNonEmpty(),
-              dirty: lineDirty};
-    }
-  };
-
-  return Editor;
-})();
-
-addEventHandler(window, "load", function() {
-  var CodeMirror = window.frameElement.CodeMirror;
-  CodeMirror.editor = new Editor(CodeMirror.options);
-  this.parent.setTimeout(method(CodeMirror, "init"), 0);
-});