sources/core/dom/nodelist.js

   1 /**
   2  * @license Copyright (c) 2003-2017, CKSource - Frederico Knabben. All rights reserved.
   3  * For licensing, see LICENSE.md or http://ckeditor.com/license
   4  */
   5
   6 /**
   7  * Represents a list of {@link CKEDITOR.dom.node} objects.
   8  * It's a wrapper for native nodes list.
   9  *
  10  *              var nodeList = CKEDITOR.document.getBody().getChildren();
  11  *              alert( nodeList.count() ); // number [0;N]
  12  *
  13  * @class
  14  * @constructor Creates a document class instance.
  15  * @param {Object} nativeList
  16  */
  17 CKEDITOR.dom.nodeList = function( nativeList ) {
  18         this.$ = nativeList;
  19 };
  20
  21 CKEDITOR.dom.nodeList.prototype = {
  22         /**
  23          * Get count of nodes in this list.
  24          *
  25          * @returns {Number}
  26          */
  27         count: function() {
  28                 return this.$.length;
  29         },
  30
  31         /**
  32          * Get node from the list.
  33          *
  34          * @returns {CKEDITOR.dom.node}
  35          */
  36         getItem: function( index ) {
  37                 if ( index < 0 || index >= this.$.length )
  38                         return null;
  39
  40                 var $node = this.$[ index ];
  41                 return $node ? new CKEDITOR.dom.node( $node ) : null;
  42         }
  43 };