基于cookie实现ztree树刷新后，展开状态不变
2016-05-04 09:51
561 查看
原文链接
这种方案是基于cookie实现的，保存的是节点的id，这要求id本身不能重复，比较适用于同一张表的数据，比如有层次结构的分类等等
源码：
[html] view
plain copy
<!DOCTYPE html>
<HTML>
<HEAD>
<TITLE> ZTREE DEMO - beforeDrag / onDrag / beforeDrop / onDrop</TITLE>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<link rel="stylesheet" href="../../../css/demo.css" type="text/css">
<link rel="stylesheet" href="../../../css/zTreeStyle/zTreeStyle.css" type="text/css">
<script type="text/javascript" src="../../../js/jquery-1.4.4.min.js"></script>
<script type="text/javascript" src="../../../js/jquery.ztree.all-3.5.js"></script>
<script type="text/javascript" src="../../../js/jquery.cookie.js"></script>
<SCRIPT type="text/javascript">
<!--
var zTree, rMenu, selectNode;
var setting = {
edit: {
drag: {
autoExpandTrigger: true,
prev: dropPrev,
inner: dropInner,
next: dropNext
},
enable: true,
showRemoveBtn: false,
showRenameBtn: false
},
data: {
simpleData: {
enable: true
}
},
callback: {
onRightClick: onRightClick,
onExpand: onExpand,
onCollapse: onCollapse,
beforeDrag: beforeDrag,
beforeDrop: beforeDrop,
beforeDragOpen: beforeDragOpen
}
};
var zNodes =[
{ id:'40', pId:'', name:"公司", root:true, open:open, icon:"../../../css/zTreeStyle/img/diy/1_open.png"},
{ id:'1', pId:'40', name:"部门1", dep:true, open:false, icon:"../../../css/zTreeStyle/img/diy/1_open.png"},
{ id:'11', pId:'1', name:"技术员", pos:true, open:false, drag:false, icon:"../../../css/zTreeStyle/img/diy/2.png"},
{ id:'12', pId:'1', name:"数据员", pos:true, open:false, drag:false, icon:"../../../css/zTreeStyle/img/diy/2.png"},
{ id:'13', pId:'1', name:"安全员", pos:true, open:false, drag:false, icon:"../../../css/zTreeStyle/img/diy/2.png"},
{ id:'14', pId:'11', name:"张三1", emp:true, dropInner:false, icon:"../../../css/zTreeStyle/img/diy/2.png"},
{ id:'15', pId:'11', name:"张三2", emp:true, dropInner:false, icon:"../../../css/zTreeStyle/img/diy/2.png"},
{ id:'16', pId:'11', name:"张三3", emp:true, dropInner:false, icon:"../../../css/zTreeStyle/img/diy/2.png"},
{ id:'17', pId:'12', name:"张三1", emp:true, dropInner:false, icon:"../../../css/zTreeStyle/img/diy/2.png"},
{ id:'18', pId:'12', name:"张三2", emp:true, dropInner:false, icon:"../../../css/zTreeStyle/img/diy/2.png"},
{ id:'19', pId:'12', name:"张三3", emp:true, dropInner:false, icon:"../../../css/zTreeStyle/img/diy/2.png"},
{ id:'2', pId:'40', name:"部门2", dep:true, open:false, icon:"../../../css/zTreeStyle/img/diy/1_open.png"},
{ id:'21', pId:'2', name:"行政专员", pos:true, drag:false, icon:"../../../css/zTreeStyle/img/diy/2.png"},
{ id:'22', pId:'2', name:"行政主管", pos:true, drag:false, icon:"../../../css/zTreeStyle/img/diy/2.png"},
{ id:'23', pId:'2', name:"人事专员", pos:true, drag:false, icon:"../../../css/zTreeStyle/img/diy/2.png"}
];
function dropPrev(treeId, nodes, targetNode) {
return false;
}
function dropInner(treeId, nodes, targetNode) {
if (targetNode && targetNode.dropInner === false) {
return false;
} else {
for (var i=0,l=curDragNodes.length; i<l; i++) {
if (!targetNode && curDragNodes[i].dropRoot === false) {
return false;
} else if (curDragNodes[i].parentTId && curDragNodes[i].getParentNode() !== targetNode && curDragNodes[i].getParentNode().childOuter === false) {
return false;
}else if(curDragNodes[i].emp && !targetNode.pos){
return false;
}else if(curDragNodes[i].dep && !targetNode.dep){
return false;
}
}
}
return true;
}
function dropNext(treeId, nodes, targetNode) {
return false;
}
var curDragNodes, autoExpandNode;
function beforeDrag(treeId, treeNodes) {
for (var i=0, l=treeNodes.length; i<l; i++) {
console.log("beforeDrag" + treeNodes[i].parentTId);
if (treeNodes[i].drag === false) {
curDragNodes = null;
return false;
} else if (treeNodes[i].parentTId && treeNodes[i].getParentNode().childDrag === false) {
curDragNodes = null;
return false;
}
}
curDragNodes = treeNodes;
return true;
}
function beforeDragOpen(treeId, treeNode) {
autoExpandNode = treeNode;
return true;
}
function beforeDrop(treeId, treeNodes, targetNode, moveType, isCopy) {
if(!targetNode){
return false;
}
return true;
}
function onRightClick(event, treeId, treeNode) {
selectNode = treeNode;
if(treeNode && treeNode.root){
zTree.selectNode(treeNode);
showRMenu("root", event.clientX, event.clientY);
}
else if (treeNode && treeNode.dep) {
zTree.selectNode(treeNode);
showRMenu("dep", event.clientX, event.clientY);
}
else if (treeNode && treeNode.pos) {
zTree.selectNode(treeNode);
showRMenu("pos", event.clientX, event.clientY);
}
else if(treeNode && treeNode.emp){
zTree.selectNode(treeNode);
showRMenu("emp", event.clientX, event.clientY);
}
}
function onExpand(event, treeId, treeNode){
var cookie = $.cookie("z_tree");
var z_tree = null;
if(cookie){
z_tree = JSON.parse(cookie);
}
if(!z_tree){
z_tree = new Array();
}
if(jQuery.inArray(treeNode.id, z_tree)<0){
z_tree.push(treeNode.id);
}
$.cookie("z_tree", JSON.stringify(z_tree))
}
function onCollapse(event, treeId, treeNode){
var cookie = $.cookie("z_tree");
var z_tree = null;
if(cookie){
z_tree = JSON.parse(cookie);
}
if(!z_tree){
z_tree = new Array();
}
var index = jQuery.inArray(treeNode.id, z_tree);
z_tree.splice(index, 1);
$.cookie("z_tree", JSON.stringify(z_tree))
}
function showRMenu(type, x, y) {
$("#rMenu ul").show();
if (type=="root") {
$("#m_addDep").show();
$("#m_addPos").hide();
$("#m_addEmp").hide();
$("#m_delPos").hide();
$("#m_delDep").hide();
$("#m_delEmp").hide();
} else if(type=="dep"){
$("#m_addDep").show();
$("#m_addPos").show();
$("#m_addEmp").hide();
$("#m_delPos").hide();
$("#m_delDep").show();
$("#m_delEmp").hide();
}else if(type=="pos"){
$("#m_addDep").hide();
$("#m_addPos").hide();
$("#m_addEmp").show();
$("#m_delPos").show();
$("#m_delDep").hide();
$("#m_delEmp").hide();
}else if(type=="emp"){
$("#m_addDep").hide();
$("#m_addPos").hide();
$("#m_addEmp").hide();
$("#m_delPos").hide();
$("#m_delDep").hide();
$("#m_delEmp").show();
}
rMenu.css({"top":y+"px", "left":x+"px", "visibility":"visible"});
$("body").bind("mousedown", onBodyMouseDown);
}
function hideRMenu() {
if (rMenu) rMenu.css({"visibility": "hidden"});
$("body").unbind("mousedown", onBodyMouseDown);
}
function onBodyMouseDown(event){
if (!(event.target.id == "rMenu" || $(event.target).parents("#rMenu").length>0)) {
rMenu.css({"visibility" : "hidden"});
}
}
var addCount = 1;
function addDep() {
hideRMenu();
var newNode = { name:"增加" + (addCount++), dep:true, icon:"../../../css/zTreeStyle/img/diy/1_open.png"};
if (zTree.getSelectedNodes()[0]) {
newNode.checked = zTree.getSelectedNodes()[0].checked;
zTree.addNodes(zTree.getSelectedNodes()[0], newNode);
} else {
zTree.addNodes(null, newNode);
}
}
function addPos() {
hideRMenu();
var newNode = { name:"增加" + (addCount++), pos:true, icon:"../../../css/zTreeStyle/img/diy/2.png"};
if (zTree.getSelectedNodes()[0]) {
newNode.checked = zTree.getSelectedNodes()[0].checked;
zTree.addNodes(zTree.getSelectedNodes()[0], newNode);
} else {
zTree.addNodes(null, newNode);
}
}
function addEmp() {
hideRMenu();
var newNode = { name:"增加" + (addCount++), emp:true, icon:"../../../css/zTreeStyle/img/diy/2.png"};
if (zTree.getSelectedNodes()[0]) {
newNode.checked = zTree.getSelectedNodes()[0].checked;
zTree.addNodes(zTree.getSelectedNodes()[0], newNode);
} else {
zTree.addNodes(null, newNode);
}
}
function removeDep() {
hideRMenu();
var nodes = zTree.getSelectedNodes();
if (nodes && nodes.length>0) {
if (nodes[0].children && nodes[0].children.length > 0) {
var msg = "要删除的节点是父节点，如果删除将连同子节点一起删掉。\n\n请确认！";
if (confirm(msg)==true){
zTree.removeNode(nodes[0]);
}
} else {
zTree.removeNode(nodes[0]);
}
}
}
function removePos() {
hideRMenu();
var nodes = zTree.getSelectedNodes();
if (nodes && nodes.length>0) {
if (nodes[0].children && nodes[0].children.length > 0) {
var msg = "要删除的节点是父节点，如果删除将连同子节点一起删掉。\n\n请确认！";
if (confirm(msg)==true){
zTree.removeNode(nodes[0]);
}
} else {
zTree.removeNode(nodes[0]);
}
}
}
function removeEmp() {
hideRMenu();
var nodes = zTree.getSelectedNodes();
if (nodes && nodes.length>0) {
zTree.removeNode(nodes[0]);
}
}
$(document).ready(function(){
$.fn.zTree.init($("#treeDemo"), setting, zNodes);
zTree = $.fn.zTree.getZTreeObj("treeDemo");
rMenu = $("#rMenu");
var cookie = $.cookie("z_tree");
if(cookie){
z_tree = JSON.parse(cookie);
for(var i=0; i< z_tree.length; i++){
var node = zTree.getNodeByParam('id', z_tree[i])
zTree.expandNode(node, true)
}
}
});
//-->
</SCRIPT>
<style type="text/css">
div#rMenu {position:absolute; visibility:hidden; top:0; background-color: #555;text-align: left;padding: 2px;}
div#rMenu ul li{
margin: 1px 0;
padding: 0 5px;
cursor: pointer;
list-style: none outside none;
background-color: #DFDFDF;
}
</style>
</HEAD>
<BODY>
<div class="content_wrap">
<div class="zTreeDemoBackground left">
<ul id="treeDemo" class="ztree"></ul>
</div>
</div>
<div id="rMenu">
<ul>
<li id="m_addDep" onclick="addDep();">增加部门</li>
<li id="m_editDep" onclick="editDep();">调整部门</li>
<li id="m_addPos" onclick="addPos();">增加岗位</li>
<li id="m_editPos" onclick="editPos();">调整岗位</li>
<li id="m_addEmp" onclick="addEmp();">增加人员</li>
<li id="m_delPos" onclick="removePos();">删除岗位</li>
<li id="m_delDep" onclick="removeDep();">删除部门</li>
<li id="m_delEmp" onclick="removeEmp();">删除人员</li>
</ul>
</div>
</BODY>
</HTML>
这种方案是基于cookie实现的，保存的是节点的id，这要求id本身不能重复，比较适用于同一张表的数据，比如有层次结构的分类等等
源码：
[html] view
plain copy
<!DOCTYPE html>
<HTML>
<HEAD>
<TITLE> ZTREE DEMO - beforeDrag / onDrag / beforeDrop / onDrop</TITLE>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<link rel="stylesheet" href="../../../css/demo.css" type="text/css">
<link rel="stylesheet" href="../../../css/zTreeStyle/zTreeStyle.css" type="text/css">
<script type="text/javascript" src="../../../js/jquery-1.4.4.min.js"></script>
<script type="text/javascript" src="../../../js/jquery.ztree.all-3.5.js"></script>
<script type="text/javascript" src="../../../js/jquery.cookie.js"></script>
<SCRIPT type="text/javascript">
<!--
var zTree, rMenu, selectNode;
var setting = {
edit: {
drag: {
autoExpandTrigger: true,
prev: dropPrev,
inner: dropInner,
next: dropNext
},
enable: true,
showRemoveBtn: false,
showRenameBtn: false
},
data: {
simpleData: {
enable: true
}
},
callback: {
onRightClick: onRightClick,
onExpand: onExpand,
onCollapse: onCollapse,
beforeDrag: beforeDrag,
beforeDrop: beforeDrop,
beforeDragOpen: beforeDragOpen
}
};
var zNodes =[
{ id:'40', pId:'', name:"公司", root:true, open:open, icon:"../../../css/zTreeStyle/img/diy/1_open.png"},
{ id:'1', pId:'40', name:"部门1", dep:true, open:false, icon:"../../../css/zTreeStyle/img/diy/1_open.png"},
{ id:'11', pId:'1', name:"技术员", pos:true, open:false, drag:false, icon:"../../../css/zTreeStyle/img/diy/2.png"},
{ id:'12', pId:'1', name:"数据员", pos:true, open:false, drag:false, icon:"../../../css/zTreeStyle/img/diy/2.png"},
{ id:'13', pId:'1', name:"安全员", pos:true, open:false, drag:false, icon:"../../../css/zTreeStyle/img/diy/2.png"},
{ id:'14', pId:'11', name:"张三1", emp:true, dropInner:false, icon:"../../../css/zTreeStyle/img/diy/2.png"},
{ id:'15', pId:'11', name:"张三2", emp:true, dropInner:false, icon:"../../../css/zTreeStyle/img/diy/2.png"},
{ id:'16', pId:'11', name:"张三3", emp:true, dropInner:false, icon:"../../../css/zTreeStyle/img/diy/2.png"},
{ id:'17', pId:'12', name:"张三1", emp:true, dropInner:false, icon:"../../../css/zTreeStyle/img/diy/2.png"},
{ id:'18', pId:'12', name:"张三2", emp:true, dropInner:false, icon:"../../../css/zTreeStyle/img/diy/2.png"},
{ id:'19', pId:'12', name:"张三3", emp:true, dropInner:false, icon:"../../../css/zTreeStyle/img/diy/2.png"},
{ id:'2', pId:'40', name:"部门2", dep:true, open:false, icon:"../../../css/zTreeStyle/img/diy/1_open.png"},
{ id:'21', pId:'2', name:"行政专员", pos:true, drag:false, icon:"../../../css/zTreeStyle/img/diy/2.png"},
{ id:'22', pId:'2', name:"行政主管", pos:true, drag:false, icon:"../../../css/zTreeStyle/img/diy/2.png"},
{ id:'23', pId:'2', name:"人事专员", pos:true, drag:false, icon:"../../../css/zTreeStyle/img/diy/2.png"}
];
function dropPrev(treeId, nodes, targetNode) {
return false;
}
function dropInner(treeId, nodes, targetNode) {
if (targetNode && targetNode.dropInner === false) {
return false;
} else {
for (var i=0,l=curDragNodes.length; i<l; i++) {
if (!targetNode && curDragNodes[i].dropRoot === false) {
return false;
} else if (curDragNodes[i].parentTId && curDragNodes[i].getParentNode() !== targetNode && curDragNodes[i].getParentNode().childOuter === false) {
return false;
}else if(curDragNodes[i].emp && !targetNode.pos){
return false;
}else if(curDragNodes[i].dep && !targetNode.dep){
return false;
}
}
}
return true;
}
function dropNext(treeId, nodes, targetNode) {
return false;
}
var curDragNodes, autoExpandNode;
function beforeDrag(treeId, treeNodes) {
for (var i=0, l=treeNodes.length; i<l; i++) {
console.log("beforeDrag" + treeNodes[i].parentTId);
if (treeNodes[i].drag === false) {
curDragNodes = null;
return false;
} else if (treeNodes[i].parentTId && treeNodes[i].getParentNode().childDrag === false) {
curDragNodes = null;
return false;
}
}
curDragNodes = treeNodes;
return true;
}
function beforeDragOpen(treeId, treeNode) {
autoExpandNode = treeNode;
return true;
}
function beforeDrop(treeId, treeNodes, targetNode, moveType, isCopy) {
if(!targetNode){
return false;
}
return true;
}
function onRightClick(event, treeId, treeNode) {
selectNode = treeNode;
if(treeNode && treeNode.root){
zTree.selectNode(treeNode);
showRMenu("root", event.clientX, event.clientY);
}
else if (treeNode && treeNode.dep) {
zTree.selectNode(treeNode);
showRMenu("dep", event.clientX, event.clientY);
}
else if (treeNode && treeNode.pos) {
zTree.selectNode(treeNode);
showRMenu("pos", event.clientX, event.clientY);
}
else if(treeNode && treeNode.emp){
zTree.selectNode(treeNode);
showRMenu("emp", event.clientX, event.clientY);
}
}
function onExpand(event, treeId, treeNode){
var cookie = $.cookie("z_tree");
var z_tree = null;
if(cookie){
z_tree = JSON.parse(cookie);
}
if(!z_tree){
z_tree = new Array();
}
if(jQuery.inArray(treeNode.id, z_tree)<0){
z_tree.push(treeNode.id);
}
$.cookie("z_tree", JSON.stringify(z_tree))
}
function onCollapse(event, treeId, treeNode){
var cookie = $.cookie("z_tree");
var z_tree = null;
if(cookie){
z_tree = JSON.parse(cookie);
}
if(!z_tree){
z_tree = new Array();
}
var index = jQuery.inArray(treeNode.id, z_tree);
z_tree.splice(index, 1);
$.cookie("z_tree", JSON.stringify(z_tree))
}
function showRMenu(type, x, y) {
$("#rMenu ul").show();
if (type=="root") {
$("#m_addDep").show();
$("#m_addPos").hide();
$("#m_addEmp").hide();
$("#m_delPos").hide();
$("#m_delDep").hide();
$("#m_delEmp").hide();
} else if(type=="dep"){
$("#m_addDep").show();
$("#m_addPos").show();
$("#m_addEmp").hide();
$("#m_delPos").hide();
$("#m_delDep").show();
$("#m_delEmp").hide();
}else if(type=="pos"){
$("#m_addDep").hide();
$("#m_addPos").hide();
$("#m_addEmp").show();
$("#m_delPos").show();
$("#m_delDep").hide();
$("#m_delEmp").hide();
}else if(type=="emp"){
$("#m_addDep").hide();
$("#m_addPos").hide();
$("#m_addEmp").hide();
$("#m_delPos").hide();
$("#m_delDep").hide();
$("#m_delEmp").show();
}
rMenu.css({"top":y+"px", "left":x+"px", "visibility":"visible"});
$("body").bind("mousedown", onBodyMouseDown);
}
function hideRMenu() {
if (rMenu) rMenu.css({"visibility": "hidden"});
$("body").unbind("mousedown", onBodyMouseDown);
}
function onBodyMouseDown(event){
if (!(event.target.id == "rMenu" || $(event.target).parents("#rMenu").length>0)) {
rMenu.css({"visibility" : "hidden"});
}
}
var addCount = 1;
function addDep() {
hideRMenu();
var newNode = { name:"增加" + (addCount++), dep:true, icon:"../../../css/zTreeStyle/img/diy/1_open.png"};
if (zTree.getSelectedNodes()[0]) {
newNode.checked = zTree.getSelectedNodes()[0].checked;
zTree.addNodes(zTree.getSelectedNodes()[0], newNode);
} else {
zTree.addNodes(null, newNode);
}
}
function addPos() {
hideRMenu();
var newNode = { name:"增加" + (addCount++), pos:true, icon:"../../../css/zTreeStyle/img/diy/2.png"};
if (zTree.getSelectedNodes()[0]) {
newNode.checked = zTree.getSelectedNodes()[0].checked;
zTree.addNodes(zTree.getSelectedNodes()[0], newNode);
} else {
zTree.addNodes(null, newNode);
}
}
function addEmp() {
hideRMenu();
var newNode = { name:"增加" + (addCount++), emp:true, icon:"../../../css/zTreeStyle/img/diy/2.png"};
if (zTree.getSelectedNodes()[0]) {
newNode.checked = zTree.getSelectedNodes()[0].checked;
zTree.addNodes(zTree.getSelectedNodes()[0], newNode);
} else {
zTree.addNodes(null, newNode);
}
}
function removeDep() {
hideRMenu();
var nodes = zTree.getSelectedNodes();
if (nodes && nodes.length>0) {
if (nodes[0].children && nodes[0].children.length > 0) {
var msg = "要删除的节点是父节点，如果删除将连同子节点一起删掉。\n\n请确认！";
if (confirm(msg)==true){
zTree.removeNode(nodes[0]);
}
} else {
zTree.removeNode(nodes[0]);
}
}
}
function removePos() {
hideRMenu();
var nodes = zTree.getSelectedNodes();
if (nodes && nodes.length>0) {
if (nodes[0].children && nodes[0].children.length > 0) {
var msg = "要删除的节点是父节点，如果删除将连同子节点一起删掉。\n\n请确认！";
if (confirm(msg)==true){
zTree.removeNode(nodes[0]);
}
} else {
zTree.removeNode(nodes[0]);
}
}
}
function removeEmp() {
hideRMenu();
var nodes = zTree.getSelectedNodes();
if (nodes && nodes.length>0) {
zTree.removeNode(nodes[0]);
}
}
$(document).ready(function(){
$.fn.zTree.init($("#treeDemo"), setting, zNodes);
zTree = $.fn.zTree.getZTreeObj("treeDemo");
rMenu = $("#rMenu");
var cookie = $.cookie("z_tree");
if(cookie){
z_tree = JSON.parse(cookie);
for(var i=0; i< z_tree.length; i++){
var node = zTree.getNodeByParam('id', z_tree[i])
zTree.expandNode(node, true)
}
}
});
//-->
</SCRIPT>
<style type="text/css">
div#rMenu {position:absolute; visibility:hidden; top:0; background-color: #555;text-align: left;padding: 2px;}
div#rMenu ul li{
margin: 1px 0;
padding: 0 5px;
cursor: pointer;
list-style: none outside none;
background-color: #DFDFDF;
}
</style>
</HEAD>
<BODY>
<div class="content_wrap">
<div class="zTreeDemoBackground left">
<ul id="treeDemo" class="ztree"></ul>
</div>
</div>
<div id="rMenu">
<ul>
<li id="m_addDep" onclick="addDep();">增加部门</li>
<li id="m_editDep" onclick="editDep();">调整部门</li>
<li id="m_addPos" onclick="addPos();">增加岗位</li>
<li id="m_editPos" onclick="editPos();">调整岗位</li>
<li id="m_addEmp" onclick="addEmp();">增加人员</li>
<li id="m_delPos" onclick="removePos();">删除岗位</li>
<li id="m_delDep" onclick="removeDep();">删除部门</li>
<li id="m_delEmp" onclick="removeEmp();">删除人员</li>
</ul>
</div>
</BODY>
</HTML>
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