时间：2021-09-19 07:53:50 | 栏目：jquery | 点击：次
First
/**
* combobox和combotree模糊查询
* combotree 结果显示两级父节点(手动设置数量)
* 键盘上下键选择叶子节点
* 键盘回车键设置文本的值
*/
(function(){
//combobox可编辑，自定义模糊查询
$.fn.combobox.defaults.editable = true;
$.fn.combobox.defaults.filter = function(q, row){
var opts = $(this).combobox('options');
return row[opts.textField].indexOf(q) >= 0;
};
//combotree可编辑，自定义模糊查询
$.fn.combotree.defaults.editable = true;
//选中行索引
var leafBlockIndex=0;
//当前选中行索引
var nowLeafBlockIndex=-1;
//combotree 组件
var comboTree=null;
//叶子节点DOM Array
var leafBlocks=null;;
//将所有的结果叶子节点放入 DOM Array中
function getDOMArray(data){
comboTree = $(data).combotree('tree');
leafBlocks=new Array();
var leafs = comboTree.tree('getChildren');
for (var i = 0; i < leafs.length; i++) {
var leaf = leafs[i];
var dis =$(leaf.target).css('display')+'';
if('block' == dis){
if(comboTree.tree('isLeaf',leaf.target)){
leafBlocks.push(leaf.target);
}
}
};
};
//-------------------------------------
$.extend($.fn.combotree.defaults.keyHandler,{
up:function(e){
leafBlockIndex=nowLeafBlockIndex;
leafBlockIndex--;
getDOMArray(this);
if(leafBlockIndex <0){
leafBlockIndex=leafBlocks.length-1;
}
comboTree.tree('select',leafBlocks[leafBlockIndex]);
// easyui 1.3.4版开始可用
// comboTree.tree('scrollTo',leafBlocks[leafBlockIndex]);
nowLeafBlockIndex=leafBlockIndex;
},
down:function(e){
leafBlockIndex=nowLeafBlockIndex;
leafBlockIndex++;
getDOMArray(this);
if(leafBlockIndex >= leafBlocks.length){
leafBlockIndex=0;
}
comboTree.tree('select',leafBlocks[leafBlockIndex]);
// easyui 1.3.4版开始可用
// comboTree.tree('scrollTo',leafBlocks[leafBlockIndex]);
nowLeafBlockIndex=leafBlockIndex;
},
left: function(e){
console.log('left');
// var val = $(this).combo('getText');
// $(this).combo('setText',val+' ');
},
right: function(e){
console.log('right');
// var val = $(this).combo('getText');
// console.log(val);
// $(this).combo('setText',val+' ');
},
enter:function(e){
var leaf =$(leafBlocks[nowLeafBlockIndex]);
var value =leaf.children('span').last().text();
$(this).combo('setText',value);
$(this).combo('hidePanel')
},
query:function(q){
var t = $(this).combotree('tree');
var nodes = t.tree('getChildren');
for(var i=0; i<nodes.length; i++){
var node = nodes[i];
if (node.text.indexOf(q) >= 0){
$(node.target).show();
var parent=t.tree('getParent',node.target);
if(parent){
$(parent.target).show();
if(parent){
parent=t.tree('getParent',parent.target);
$(parent.target).show();
}
}
} else {
$(node.target).hide();
}
}
var opts = $(this).combotree('options');
if (!opts.hasSetEvents){
opts.hasSetEvents = true;
var onShowPanel = opts.onShowPanel;
opts.onShowPanel = function(){
var nodes = t.tree('getChildren');
for(var i=0; i<nodes.length; i++){
$(nodes[i].target).show();
}
onShowPanel.call(this);
};
$(this).combo('options').onShowPanel = opts.onShowPanel;
}
}
});
})(jQuery);
Second
(function ($) {
//combotree可编辑，自定义模糊查询
$.fn.combotree.defaults.editable = true;
$.extend($.fn.combotree.defaults.keyHandler, {
query: function (q) {
var t = $(this).combotree('tree');
t.tree("search", q);
}
});
$.extend($.fn.tree.methods, { /**
* 扩展easyui tree的搜索方法
* @param tree easyui tree的根DOM节点(UL节点)的jQuery对象 * @param searchText 检索的文本
* @param this-context easyui tree的tree对象 */
search: function (jqTree, searchText) {
//easyui tree的tree对象。可以通过tree.methodName(jqTree)方式调用easyui tree的方法
var tree = this;
//获取所有的树节点
var nodeList = getAllNodes(jqTree, tree);
//如果没有搜索条件，则展示所有树节点
searchText = $.trim(searchText);
if (searchText == "") {
for (var i = 0; i < nodeList.length; i++) {
$(".tree-node-targeted",
nodeList[i].target).removeClass("tree-node-targeted");
$(nodeList[i].target).show();
}
//展开已选择的节点（如果之前选择了）
var selectedNode = tree.getSelected(jqTree);
if (selectedNode) {
tree.expandTo(jqTree, selectedNode.target);
}
return;
}
//搜索匹配的节点并高亮显示
var matchedNodeList = [];
if (nodeList && nodeList.length > 0) {
var node = null;
for (var i = 0; i < nodeList.length; i++) {
node = nodeList[i];
if (isMatch(searchText, node.text)) {
matchedNodeList.push(node);
}
}
//隐藏所有节点
for (var i = 0; i < nodeList.length; i++) {
$(".tree-node-targeted", nodeList[i].target).removeClass("tree-node-targeted");
$(nodeList[i].target).hide();
}
//折叠所有节点
tree.collapseAll(jqTree);
//展示所有匹配的节点以及父节点
for (var i = 0; i < matchedNodeList.length; i++) {
showMatchedNode(jqTree, tree, matchedNodeList[i]);
}
}
},
/**
* 展示节点的子节点（子节点有可能在搜索的过程中被隐藏了）
* @param node easyui tree节点
*/
showChildren: function (jqTree, node) {
//easyui tree的tree对象。可以通过tree.methodName(jqTree)方式调用easyui tree的方法
var tree = this;
//展示子节点
if (!tree.isLeaf(jqTree, node.target)) {
var children = tree.getChildren(jqTree, node.target);
if (children && children.length > 0) {
for (var i = 0; i < children.length; i++) {
if ($(children[i].target).is(":hidden")) {
$(children[i].target).show();
}
}
}
}
},
/**
* 将滚动条滚动到指定的节点位置，使该节点可见（如果有滚动条才滚动，没有滚动条就不滚动）
* @param param {
* treeContainer: easyui tree的容器（即存在滚动条的树容器）。如果为null，则取easyui tree的根UL节点的父节点。
* argetNode: 将要滚动到的easyui tree节点。如果targetNode为空，则默认滚动到当前已选中的节点，如果没有选中的节点，则不滚动 * } */
scrollTo: function (jqTree, param) {
//easyui tree的tree对象。可以通过tree.methodName(jqTree)方式调用easyui tree的方法
var tree = this;
//如果node为空，则获取当前选中的node
var targetNode = param && param.targetNode ? param.targetNode : tree.getSelected(jqTree);
if (targetNode != null) {
//判断节点是否在可视区域 var root = tree.getRoot(jqTree);
var $targetNode = $(targetNode.target);
var Container = param && param.treeContainer ? param.treeContainer : jqTree.parent();
var containerH = container.height();
var nodeOffsetHeight = $targetNode.offset().top - container.offset().top;
if (nodeOffsetHeight > (containerH - 30)) {
var scrollHeight = container.scrollTop() + nodeOffsetHeight - containerH + 30;
container.scrollTop(scrollHeight);
}
}
}
});
/**
* 展示搜索匹配的节点 */
function showMatchedNode(jqTree, tree, node) {
//展示所有父节点
$(node.target).show();
$(".tree-title", node.target).addClass("tree-node-targeted");
var pNode = node;
while ((pNode = tree.getParent(jqTree, pNode.target))) {
$(pNode.target).show();
}
//展开到该节点
tree.expandTo(jqTree, node.target);
//如果是非叶子节点，需折叠该节点的所有子节点
if (!tree.isLeaf(jqTree, node.target)) {
tree.collapse(jqTree, node.target);
}
}
/**
* 判断searchText是否与targetText匹配
* @param searchText 检索的文本 * @param targetText 目标文本
* @return true-检索的文本与目标文本匹配；否则为false.
*/
function isMatch(searchText, targetText) {
return $.trim(targetText) != "" && targetText.indexOf(searchText) != -1;
}
/**
* 获取easyui tree的所有node节点 */
function getAllNodes(jqTree, tree) {
var allNodeList = jqTree.data("allNodeList");
if (!allNodeList) {
var roots = tree.getRoots(jqTree);
allNodeList = getChildNodeList(jqTree, tree, roots);
jqTree.data("allNodeList", allNodeList);
}
return allNodeList;
}
/**
* 定义获取easyui tree的子节点的递归算法 */
function getChildNodeList(jqTree, tree, nodes) {
var childNodeList = [];
if (nodes && nodes.length > 0) {
var node = null;
for (var i = 0; i < nodes.length; i++) {
node = nodes[i];
childNodeList.push(node);
if (!tree.isLeaf(jqTree, node.target)) {
var children = tree.getChildren(jqTree, node.target);
childNodeList = childNodeList.concat(getChildNodeList(jqTree, tree, children));
}
}
}
return childNodeList;
}
})(jQuery);