0e69103e128bcb68b50db3e03170520726bf821e.svn-base
5.37 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
<!DOCTYPE html>
<HTML>
<HEAD>
<TITLE> ZTREE DEMO - async for All</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.core-3.5.js"></script>
<!--<script type="text/javascript" src="../../../js/jquery.ztree.excheck-3.5.js"></script>
<script type="text/javascript" src="../../../js/jquery.ztree.exedit-3.5.js"></script>-->
<SCRIPT type="text/javascript">
<!--
var demoMsg = {
async:"正在进行异步加载,请等一会儿再点击...",
expandAllOver: "全部展开完毕",
asyncAllOver: "后台异步加载完毕",
asyncAll: "已经异步加载完毕,不再重新加载",
expandAll: "已经异步加载完毕,使用 expandAll 方法"
}
var setting = {
async: {
enable: true,
url:"../asyncData/getNodes.php",
autoParam:["id", "name=n", "level=lv"],
otherParam:{"otherParam":"zTreeAsyncTest"},
dataFilter: filter,
type: "get"
},
callback: {
beforeAsync: beforeAsync,
onAsyncSuccess: onAsyncSuccess,
onAsyncError: onAsyncError
}
};
function filter(treeId, parentNode, childNodes) {
if (!childNodes) return null;
for (var i=0, l=childNodes.length; i<l; i++) {
childNodes[i].name = childNodes[i].name.replace(/\.n/g, '.');
}
return childNodes;
}
function beforeAsync() {
curAsyncCount++;
}
function onAsyncSuccess(event, treeId, treeNode, msg) {
curAsyncCount--;
if (curStatus == "expand") {
expandNodes(treeNode.children);
} else if (curStatus == "async") {
asyncNodes(treeNode.children);
}
if (curAsyncCount <= 0) {
if (curStatus != "init" && curStatus != "") {
$("#demoMsg").text((curStatus == "expand") ? demoMsg.expandAllOver : demoMsg.asyncAllOver);
asyncForAll = true;
}
curStatus = "";
}
}
function onAsyncError(event, treeId, treeNode, XMLHttpRequest, textStatus, errorThrown) {
curAsyncCount--;
if (curAsyncCount <= 0) {
curStatus = "";
if (treeNode!=null) asyncForAll = true;
}
}
var curStatus = "init", curAsyncCount = 0, asyncForAll = false,
goAsync = false;
function expandAll() {
if (!check()) {
return;
}
var zTree = $.fn.zTree.getZTreeObj("treeDemo");
if (asyncForAll) {
$("#demoMsg").text(demoMsg.expandAll);
zTree.expandAll(true);
} else {
expandNodes(zTree.getNodes());
if (!goAsync) {
$("#demoMsg").text(demoMsg.expandAll);
curStatus = "";
}
}
}
function expandNodes(nodes) {
if (!nodes) return;
curStatus = "expand";
var zTree = $.fn.zTree.getZTreeObj("treeDemo");
for (var i=0, l=nodes.length; i<l; i++) {
zTree.expandNode(nodes[i], true, false, false);
if (nodes[i].isParent && nodes[i].zAsync) {
expandNodes(nodes[i].children);
} else {
goAsync = true;
}
}
}
function asyncAll() {
if (!check()) {
return;
}
var zTree = $.fn.zTree.getZTreeObj("treeDemo");
if (asyncForAll) {
$("#demoMsg").text(demoMsg.asyncAll);
} else {
asyncNodes(zTree.getNodes());
if (!goAsync) {
$("#demoMsg").text(demoMsg.asyncAll);
curStatus = "";
}
}
}
function asyncNodes(nodes) {
if (!nodes) return;
curStatus = "async";
var zTree = $.fn.zTree.getZTreeObj("treeDemo");
for (var i=0, l=nodes.length; i<l; i++) {
if (nodes[i].isParent && nodes[i].zAsync) {
asyncNodes(nodes[i].children);
} else {
goAsync = true;
zTree.reAsyncChildNodes(nodes[i], "refresh", true);
}
}
}
function reset() {
if (!check()) {
return;
}
asyncForAll = false;
goAsync = false;
$("#demoMsg").text("");
$.fn.zTree.init($("#treeDemo"), setting);
}
function check() {
if (curAsyncCount > 0) {
$("#demoMsg").text(demoMsg.async);
return false;
}
return true;
}
$(document).ready(function(){
$.fn.zTree.init($("#treeDemo"), setting);
$("#expandAllBtn").bind("click", expandAll);
$("#asyncAllBtn").bind("click", asyncAll);
$("#resetBtn").bind("click", reset);
});
//-->
</SCRIPT>
</HEAD>
<BODY>
<h1>异步加载模式下全部展开</h1>
<h6>[ 文件路径: super/asyncForAll.html ]</h6>
<div class="content_wrap">
<div class="zTreeDemoBackground left">
<ul id="treeDemo" class="ztree"></ul>
</div>
<div class="right">
<ul class="info">
<li class="title"><h2>实现方法说明</h2>
<ul class="list">
<li>利用 onAsyncSuccess / onAsyncError 回调函数 和 reAsyncChildNodes 或 expandNode 方法可以实现全部功能。</li>
<li class="highlight_red">如果父节点数量很大,请注意利用延时进行控制,避免异步进程过多。</li>
<li class="highlight_red">建议:演示时请利用调试工具查看 network 的 ajax 加载过程。</li>
<li>演示操作
<br/><br/>
[ <a id="expandAllBtn" href="#" onclick="return false;">全部展开</a> ]
[ <a id="asyncAllBtn" href="#" onclick="return false;">后台自动全部加载</a> ]<br/><br/>
[ <a id="resetBtn" href="#" onclick="return false;">Reset zTree</a> ]<br/><br/>
<p class="highlight_red" id="demoMsg"></p>
</li>
</ul>
</li>
</ul>
</div>
</div>
</BODY>
</HTML>