Render Row IDs on Eclipse RAP for UI testing (Snippet for TreeRowContainer.js)

gistfile1.js

   _updateRows : function( from, delta, contentOnly ) {
      this._updateRowsEvenState();
      var item = this._topItem;
      var to = from + delta;
      var row = 0;
      while( item != null && row < this._children.length ) {
        if( row >= from && row <= to ) {
          this._renderRow( this._children[ row ], item, contentOnly );
          this._items[ row ] = item;
        }
        item = item.getNextItem();
        row++;
      }
      for( var i = row; i < this._children.length; i++ ) {
        this._renderRow( this._children[ i ], null, contentOnly );
        this._items[ i ] = null;
        
        if( qx.ui.core.Widget._renderHtmlIds ) {
        	this._children[ i ].applyObjectId('row_'+ this._generateId(i));
        }
      }
    },
    _generateId : function( id ) {
    	var s = String(id);
    	var result = '';
    	for( var i = 0; i< s.length; i++){
    		var ch = s.charAt(i);
    		 result = result + 'abcdefghijklmnopqrstuvwxyz'[(ch-0)];
    	}
    	return result;
    },