Ext.define('MyExtend.lib.TreeFilter', {

	filterByText: function(text) {

		this.filterBy(text, 'text');

	},

	/**

	 * 根据字符串过滤所有的节点，将不符合条件的节点进行隐藏.

	 * @param 查询字符串.

	 * @param 要查询的列.

	 */

	filterBy: function(text, by) {

		this.clearFilter();

		var view = this.getView(),

			me = this,

			nodesAndParents = [];

		// 找到匹配的节点并展开.

		// 添加匹配的节点和他们的父节点到nodesAndParents数组.

		this.getRootNode().cascadeBy(function(tree, view) {

			var currNode = this;

			if (currNode && currNode.data[by] && currNode.data[by].toString().toLowerCase().indexOf(text.toLowerCase()) > -1) {

				me.expandPath(currNode.getPath());

				while (currNode.parentNode) {

					nodesAndParents.push(currNode.id);

					currNode = currNode.parentNode;

				}

			}

		}, null, [me, view]);

		// 将不在nodesAndParents数组中的节点隐藏

		this.getRootNode().cascadeBy(function(tree, view) {

			var uiNode = view.getNodeByRecord(this);

			if (uiNode && !Ext.Array.contains(nodesAndParents, this.id)) {

				Ext.get(uiNode).setDisplayed('none');

			}

		}, null, [me, view]);

	},

	clearFilter: function() {

		var view = this.getView();

		this.getRootNode().cascadeBy(function(tree, view) {

			var uiNode = view.getNodeByRecord(this);

			if (uiNode) {

				Ext.get(uiNode).setDisplayed('table-row');

			}

		}, null, [this, view]);

	}

});

Ext.define('MyTreePanel',{

	extend:'Ext.tree.Panel',

	mixins:['MyExtend.lib.TreeFilter']

});