editor/js/editor-tab.js

editor-tab.js revision 09c638a157dd9d2ed9027215d9e254badfa019b8

   /**
    * Handles tab and shift-tab indent/outdent support.
    * @class Plugin.EditorTab
    * @constructor
    * @extends Base
    * @module editor
    * @submodule editor-tab
    */

   var EditorTab = function() {
       EditorTab.superclass.constructor.apply(this, arguments);
   }, HOST = 'host';

   Y.extend(EditorTab, Y.Base, {
       /**
       * Listener for host's nodeChange event and captures the tabkey interaction.
       * @private
       * @method _onNodeChange
       * @param {Event} e The Event facade passed from the host.
       */
       _onNodeChange: function(e) {
           var action = 'indent';

           if (e.changedType === 'tab') {
               if (!e.changedNode.test('li, li *')) {
                   e.changedEvent.halt();
                   e.preventDefault();
                   if (e.changedEvent.shiftKey) {
                       action = 'outdent';
                   }

                   Y.log('Overriding TAB to ' + action, 'info', 'editorTab');
                   this.get(HOST).execCommand(action, '');
               }
           }
       },
       initializer: function() {
           this.get(HOST).on('nodeChange', Y.bind(this._onNodeChange, this));
       }
   }, {
       /**
       * editorTab
       * @property NAME
       * @static
       */
       NAME: 'editorTab',
       /**
       * tab
       * @property NS
       * @static
       */
       NS: 'tab',
       ATTRS: {
           host: {
               value: false
           }
       }
   });


   Y.namespace('Plugin');

   Y.Plugin.EditorTab = EditorTab;