source: Dev/trunk/src/client/dijit/_editor/plugins/TabIndent.js

define([
        "dojo/_base/declare", // declare
        "dojo/_base/kernel", // kernel.experimental
        "../_Plugin",
        "../../form/ToggleButton"
], function(declare, kernel, _Plugin, ToggleButton){

        // module:
        //              dijit/_editor/plugins/TabIndent

        kernel.experimental("dijit._editor.plugins.TabIndent");


        var TabIndent = declare("dijit._editor.plugins.TabIndent", _Plugin, {
                // summary:
                //              This plugin is used to allow the use of the tab and shift-tab keys
                //              to indent/outdent list items.  This overrides the default behavior
                //              of moving focus from/to the toolbar

                // Override _Plugin.useDefaultCommand... processing is handled by this plugin, not by dijit/Editor.
                useDefaultCommand: false,

                // Override _Plugin.buttonClass to use a ToggleButton for this plugin rather than a vanilla Button
                buttonClass: ToggleButton,

                command: "tabIndent",

                _initButton: function(){
                        // Override _Plugin._initButton() to setup listener on button click
                        this.inherited(arguments);

                        var e = this.editor;
                        this.own(this.button.on("change", function(val){
                                e.set("isTabIndent", val);
                        }));

                        // Set initial checked state of button based on Editor.isTabIndent
                        this.updateState();
                },

                updateState: function(){
                        // Overrides _Plugin.updateState().
                        // Ctrl-m in the editor will switch tabIndent mode on/off, so we need to react to that.
                        var disabled = this.get("disabled");
                        this.button.set("disabled", disabled);
                        if(disabled){
                                return;
                        }
                        this.button.set('checked', this.editor.isTabIndent, false);
                }
        });

        // Register this plugin.
        _Plugin.registry["tabIndent"] = function(){
                return new TabIndent({command: "tabIndent"});
        };


        return TabIndent;
});