hackedteam/rcs-console

package it.ht.rcs.console.operations.view.agents.build
{
    import mx.collections.ICollectionView;
    import mx.controls.treeClasses.ITreeDataDescriptor;

    /**
     * Implements a very simple filterable TreeDataDescriptor
     */
    public class FilteredTreeDataDescriptor implements ITreeDataDescriptor
    {
        private var _filter:Function;
        
        /**
         * Creates a new FilteredTreeDataDescriptor with the specified filter
         * 
         * @param filterFunction    Function that complies with the signature:
         *                             function(node:Object):ICollectionView.
         *                             The function is expected to return the set
         *                             of children to be displayed
         */
        public function FilteredTreeDataDescriptor(filterFunction:Function)
        {
            _filter = filterFunction;
        }

        /** 
         * Applies the filter to the node's children and returns the result
         */
        public function getChildren(node:Object, model:Object=null):ICollectionView
        {
            return _filter(node);
        }
        
        /**
         * True if the the filtered set of children >= 1
         */
        public function hasChildren(node:Object, model:Object=null):Boolean
        {
            return getChildren(node, model).length > 0;
        }
        
        /**
         * This method determines whether a folder or file icon is displayed for
         * this node. Here it is a branch if the node has children
         */
        public function isBranch(node:Object, model:Object=null):Boolean
        {
      return node.@folder == 'true';
            //return hasChildren(node, model);
        }
        
        public function getData(node:Object, model:Object=null):Object
        {
            //Not implemented
            return null;
        }
        
        public function addChildAt(parent:Object, newChild:Object, index:int, model:Object=null):Boolean
        {
            //Not implemented
            return false;
        }
        
        public function removeChildAt(parent:Object, child:Object, index:int, model:Object=null):Boolean
        {
            //Not implemented
            return false;
        }
    }
}