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share/endpoint/www/js/editor.js  view on Meta::CPAN

    this.importCode(options.content || "");
    this.history.onChange = options.onChange;

    if (!options.readOnly) {
      if (options.continuousScanning !== false) {
        this.scanner = this.documentScanner(options.passTime);
        this.delayScanning();
      }

      function setEditable() {
        // Use contentEditable instead of designMode on IE, since designMode frames
        // can not run any scripts. It would be nice if we could use contentEditable
        // everywhere, but it is significantly flakier than designMode on every
        // single non-IE browser.
        if (document.body.contentEditable != undefined && internetExplorer)
          document.body.contentEditable = "true";
        else
          document.designMode = "on";

        // Work around issue where you have to click on the actual
        // body of the document to focus it in IE, making focusing
        // hard when the document is small.
        if (internetExplorer && options.height != "dynamic")
          document.body.style.minHeight = (frameElement.clientHeight - 2 * document.body.offsetTop - 5) + "px";

        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(internetExplorer ? document.body : window, "mouseup", cursorActivity);
      addEventHandler(document.body, "cut", cursorActivity);

      // workaround for a gecko bug [?] where going forward and then
      // back again breaks designmode (no more cursor)
      if (gecko)
        addEventHandler(window, "pagehide", function(){self.unloaded = true;});

      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) {
          event.stop();
          self.replaceSelection(text);
          select.scrollToCursor(self.container);
        }
      });

      if (this.options.autoMatchParens)
        addEventHandler(document.body, "click", method(this, "scheduleParenHighlight"));
    }
    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();
      forEach(traverseDOM(this.container.firstChild), method(accum, "push"));
      select.selectMarked();
      // On webkit, don't count last (empty) line if the webkitLastLineHack BR is present
      if (webkit && this.container.lastChild.hackBR)
        accum.pop();
      webkitLastLineHack(this.container);
      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;
    },