zTree模糊查询，匹配则显示父子节点，否则隐藏

var hiddenNodes = []; //用于存储被隐藏的结点
var nodeList;
//过滤ztree显示数据
function filter() {
////显示上次搜索后背隐藏的结点
//zTreeObj.showNodes(hiddenNodes);

////查找不符合条件的叶子节点
//function filterFunc(node) {
//    var keywords = $("#keyword").val();
//    if (node.isParent || node.Name.indexOf(keywords) != -1) return false;
//    return true;
//};

////获取不符合条件的叶子结点
//hiddenNodes = zTreeObj.getNodesByFilter(filterFunc);

////隐藏不符合条件的叶子结点
//zTreeObj.hideNodes(hiddenNodes);

//zTreeObj.expandAll(true);

var allNode = zTreeObj.transformToArray(zTreeObj.getNodes());
zTreeObj.hideNodes(allNode);

function filterFunc(node) {
var keywords = $("#keyword").val();
if ( node.Name.indexOf(keywords) != -1) return true;
return false;
};

var keywords = $("#keyword").val();
if (keywords == "") {
zTreeObj.showNodes(allNode);
zTreeObj.expandAll(false);
} else {
//var nodeList = zTreeObj.getNodesByParamFuzzy("text", keywords, null);
nodeList = zTreeObj.getNodesByFilter(filterFunc);
nodeList = zTreeObj.transformToArray(nodeList);
for (var n in nodeList) {
if (nodeList.hasOwnProperty(n)) {
findParent(zTreeObj, nodeList
);
}
}
zTreeObj.showNodes(nodeList);
}
}

function findParent(treeObj, node) {
treeObj.expandNode(node, true, false, false);
var pNode = node.getParentNode();
if (pNode != null) {
nodeList.push(pNode);
findParent(treeObj, pNode);
}
};