lib/dijit/_editor/plugins/ToggleDir.js

   1 /*
   2         Copyright (c) 2004-2011, The Dojo Foundation All Rights Reserved.
   3         Available via Academic Free License >= 2.1 OR the modified BSD license.
   4         see: http://dojotoolkit.org/license for details
   5 */
   6
   7
   8 if(!dojo._hasResource["dijit._editor.plugins.ToggleDir"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
   9 dojo._hasResource["dijit._editor.plugins.ToggleDir"] = true;
  10 dojo.provide("dijit._editor.plugins.ToggleDir");
  11 dojo.require("dijit._editor._Plugin");
  12 dojo.require("dijit.form.ToggleButton");
  13
  14
  15 dojo.experimental("dijit._editor.plugins.ToggleDir");
  16
  17 dojo.require("dijit._editor._Plugin");
  18 dojo.require("dijit.form.ToggleButton");
  19
  20 dojo.declare("dijit._editor.plugins.ToggleDir",
  21         dijit._editor._Plugin,
  22         {
  23                 // summary:
  24                 //              This plugin is used to toggle direction of the edited document,
  25                 //              independent of what direction the whole page is.
  26
  27                 // Override _Plugin.useDefaultCommand: processing is done in this plugin
  28                 // rather than by sending commands to the Editor
  29                 useDefaultCommand: false,
  30
  31                 command: "toggleDir",
  32
  33                 // Override _Plugin.buttonClass to use a ToggleButton for this plugin rather than a vanilla Button
  34                 buttonClass: dijit.form.ToggleButton,
  35
  36                 _initButton: function(){
  37                         // Override _Plugin._initButton() to setup handler for button click events.
  38                         this.inherited(arguments);
  39                         this.editor.onLoadDeferred.addCallback(dojo.hitch(this, function(){
  40                                 var editDoc = this.editor.editorObject.contentWindow.document.documentElement;
  41                                 //IE direction has to toggle on the body, not document itself.
  42                                 //If you toggle just the document, things get very strange in the
  43                                 //view.  But, the nice thing is this works for all supported browsers.
  44                                 editDoc = editDoc.getElementsByTagName("body")[0];
  45                                 var isLtr = dojo.getComputedStyle(editDoc).direction == "ltr";
  46                                 this.button.set("checked", !isLtr);
  47                                 this.connect(this.button, "onChange", "_setRtl");
  48                         }));
  49                 },
  50
  51                 updateState: function(){
  52                         // summary:
  53                         //              Over-ride for button state control for disabled to work.
  54                         this.button.set("disabled", this.get("disabled"));
  55                 },
  56
  57                 _setRtl: function(rtl){
  58                         // summary:
  59                         //              Handler for button click events, to switch the text direction of the editor
  60                         var dir = "ltr";
  61                         if(rtl){
  62                                 dir = "rtl";
  63                         }
  64                         var editDoc = this.editor.editorObject.contentWindow.document.documentElement;
  65                         editDoc = editDoc.getElementsByTagName("body")[0];
  66                         editDoc.dir/*html node*/ = dir;
  67                 }
  68         }
  69 );
  70
  71 // Register this plugin.
  72 dojo.subscribe(dijit._scopeName + ".Editor.getPlugin",null,function(o){
  73         if(o.plugin){ return; }
  74         switch(o.args.name){
  75         case "toggleDir":
  76                 o.plugin = new dijit._editor.plugins.ToggleDir({command: o.args.name});
  77         }
  78 });
  79
  80 }