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Javascript
javascript进行客户端数据的校验
javascript中如何实现浏览器上的右键菜单
用javascript使链接按钮不断变化
利用javascript制作倒计时牌
用javascript实现变色背景和文字
让弹出窗口变得“体贴”一些(javascript)
javascript实例教程(1) 创建弹出式窗口
javascript实例教程(2) 创建折叠式导航菜单
javascript实例教程(3) 探测浏览器插件
javascript实例教程(4) 探测浏览器插件
javascript实例教程(5) 在一个表单中设置和检查Cookies
javascript实例教程(6) 利用javascript进行密码保护
javascript实例教程(7) 利用javascript基于浏览器类型的重定向
javascript实例教程(8) 检验表单有效性
javascript实例教程(9) 随机显示图片
javascript实例教程(10) 创建后退按钮
javascript实例教程(11) 隐藏script代码
javascript实例教程(12) 鼠标移过时报警
javascript实例教程(13) 鼠标触发窗口
javascript实例教程(14) JS代替CGI

Javascript 中的 newxtree.js代码


出处:互联网   整理: 软晨网(RuanChen.com)   发布: 2009-10-12   浏览: 310 ::
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/*=========================================
Powered by Fason
Email: [email protected]
HomePage:http://fason.nease.net
Version:3.0
=========================================*/
var TreeConfig = {
TreeIcon :{
root :'root.gif',
folderopen :'folderopen.gif',
folder :'folder.gif',
file :'file.gif',
Rplus :'Rplus.gif',
Rminus :'Rminus.gif',
join :'T.gif',
joinbottom :'L.gif',
plus :'Tplus.gif',
plusbottom :'Lplus.gif',
minus :'Tminus.gif',
minusbottom :'Lminus.gif',
blank :'blank.gif',
line :'I.gif'
},
defaultText :"New",
defaultHref :"javascript:void(0)",
defaultTarget :"_blank",
loadingText :"Loading...",
unavaibleText :"Unavaible",
useCookie :true,
contextmenu :null
};
var TreeHandler = {
id :0,
all :{},
getId :function (obj, key) {
var ID = key == null ? this.id :key;
this.all[ID] = obj;
return key==null ? this.id++ : key;
},
setImagePath :function(sPath){
for (i in TreeConfig.TreeIcon) {
var tem = new Image();
tem.src = sPath + TreeConfig.TreeIcon[i];
TreeConfig.TreeIcon[i] = tem.src;
}
}
};
//*************
// WebCookie
//*************
var WebCookie = new function () {
this.setValue = function (sName, sValue, sExpire, sPath, sDomain, sSecure) {
var cookie = sName + "=" + escape(sValue);
if (sExpire) cookie += "; expires=" + sExpire.toGMTString();
if (sPath) cookie += "; path=" + sPath;
if (sSecure) cookie += "; secure";
document.cookie = cookie;
};
this.getValue = function (sName) {
var c = document.cookie.split("; ");
for (var i=0; i<c.length; i++) {
var cItem = c[i].split("=");
if (cItem[0] == sName) return unescape(cItem[1]);
}
return null;
};
this.delCookie = function (sName) {
var cVal = this.getValue(sName);
if (cVal != null) {
var d = new Date();d.setTime(d.getTime()-1);
this.setValue(sName, cVal, d);
}
};
};
//**************
// TreeNode
//**************
Array.prototype.Remove = function(o){
for (var i=0; i<this.length; i++) {
if (this[i] == o) break;
}
if (i != this.length) return this.slice(0,i).concat(this.slice(i+1,this.length));
return this;
};
function TreeNode(sKey, sText, sHref, sTarget, sTitle, sIcon, sOpenIcon, sXMLSrc) {
this.id = TreeHandler.getId(this, sKey);
this.level = 0;
this.text = sText ? sText : TreeConfig.defaultText;
this.href = sHref ? sHref : TreeConfig.defaultHref;
this.target = sHref ? (sTarget ? sTarget : TreeConfig.defaultTarget) : "_self";
this.title = sTitle ? sTitle : this.text;
this.childNodes = new Array();
this.parentNode = null;
this.open = TreeConfig.useCookie ? this.getOpen() : 0;
this.shown = false;
this.icon = sIcon;
this.openIcon = sOpenIcon;
this.src = sXMLSrc;
this._tree = null;
this.onexpand = null;
this.oncollapse = null;
this.onselect = null;
this.toElement();
if (sXMLSrc) {
this.open = 0;
this.loader = new this.constructor(null, TreeConfig.loadingText, null, null, null);
this.add(this.loader);
}
};
TreeNode.prototype.toElement = function () {
var f = typeof(this.href) == "function";
var oThis = this;
this._item = document.createElement("div");
this._item.className = "TreeNode";
this._item.noWrap = true;
this._item.onselectstart = function(){ return false;}
this._handler = document.createElement("img");
this._handler.align = "absmiddle";
this._handler.onclick = function(){ oThis.toggle();};
this._item.appendChild(this._handler);
this._icon = document.createElement("img");
this._icon.align = "absmiddle";
//this._icon.onclick = function(){ oThis.select(true); };
this._icon.onclick = function(){ oThis.toggle(); }; //superj修改,单击图标为展开
this._icon.ondblclick = function(){ oThis.toggle(); };
this._item.appendChild(this._icon);
this._anchor = document.createElement("a");
this._anchor.className = "TreeNode-Anchor"
this._anchor.innerHTML = this.HTMLtoText(this.text);
this._anchor.target = f ? "_self" : this.target;
this._anchor.href = f ? TreeConfig.defaultHref : this.href;
this._anchor.title = this.title;
//this._anchor.onmousedown = function(e){ return oThis.contextMenu(e); };
this._anchor.onmousedown = function(){ oThis.toggle(); }; //superj修改,单击标签为展开
this._anchor.onfocus = function(){ oThis.focus(); }
this._anchor.onblur = function(){ oThis.blur(); };
this._anchor.onkeydown = function(e){ return oThis.KeyDown(e);}
this._item.appendChild(this._anchor);
this._container = document.createElement("div");
this._container.style.display = this.open ? "" : "none";
this._item.appendChild(this._container);
};
TreeNode.prototype.HTMLtoText = function (s) {
return String(s).replace(/&/g, "&").replace(/\"/g, '"').replace(/</g,'<').replace(/>/g, '>');
};
TreeNode.prototype.isLast = function () {
var p = this.parentNode;
if (p == null) return false;
return p.childNodes[p.childNodes.length - 1] == this;
};
TreeNode.prototype.indent = function () {
for (var i=0; i<this.childNodes.length; i++) { this.childNodes[i].indent(); }
var t = this._item, iv = this.level;
if (iv) while (--iv) { t.removeChild(t.firstChild); }
var node = this.parentNode, v = 0, _root = this.getRoot();
while (node) {
v++;
if (node == _root) break;
var m = document.createElement("img");
m.align = "absmiddle";
m.src = node.isLast() ? TreeConfig.TreeIcon.blank : TreeConfig.TreeIcon.line;
t.insertBefore(m, t.firstChild);
node = node.parentNode;
}
this.level = v;
};
TreeNode.prototype.recalIndent = function (nLevel, b) {
for (var i = 0; i<this.childNodes.length; i++) {
this.childNodes[i]._item.childNodes[nLevel-1].src = b ? TreeConfig.TreeIcon.blank : TreeConfig.TreeIcon.line;
this.childNodes[i].recalIndent(nLevel, b);
}
};
TreeNode.prototype.reloadIcon = function () {
var l = this.isLast(), o = this.open, m = TreeConfig.TreeIcon;
if (this.parentNode) {
this._handler.src = this.childNodes.length>0 ? (o ? (l ? m.minusbottom : m.minus) : (l ? m.plusbottom : m.plus)) : (l ? m.joinbottom : m.join);
}
this._icon.src = this.childNodes.length>0 ? (o ? (this.openIcon ? this.openIcon : (this.icon ? this.icon : m.folderopen)) : (this.icon ? this.icon : m.folder)) : (this.icon ? this.icon : m.file);
};
TreeNode.prototype.addXMLNodeLoop = function (doc) {
var c = doc.childNodes;
for (var i = 0; i < c.length; i++) {
var o = c[i];
if (o.nodeType == 1) {
var X = this.constructor;
var node = new X(o.getAttribute("id"), o.getAttribute("text"), o.getAttribute("href"), o.getAttribute("target"), o.getAttribute("title"), o.getAttribute("icon"), o.getAttribute("openicon"), o.getAttribute('src'));
this.add(node);
if (!o.getAttribute("src")) {
node.addXMLNodeLoop(o);
}
}
}
};
TreeNode.prototype.XMLHttpCallBack = function () {
if (this._xmlhttp.readyState != 4) return;
var oLoad = this.loader;
var doc = this._xmlhttp.responseXML;
var sXML = String(this._xmlhttp.responseText).replace(/<\?xml[^\?]*\?>/i, "");
if (window.DOMParser) {
doc = (new DOMParser()).parseFromString(sXML, 'text/xml');
} else {
doc.loadXML(sXML);
}
if (doc.documentElement) {
var oRoot = doc.getElementsByTagName("Tree")[0];
if (oRoot.childNodes.length == 0) { this.setText(TreeConfig.unavaibleText); }
else {
var s = this._tree.getSelectedNode() == oLoad;
this.addXMLNodeLoop(oRoot);
oLoad.remove();
this.async();
this.loader = null;
}
}
else {
oLoad.setText(TreeConfig.unavaibleText);
}
};
TreeNode.prototype.getXML = function () {
var oLoad = this.loader;
var oThis = this;
this._xmlhttp = null;
try{
if (window.XMLHttpRequest)
this._xmlhttp = new XMLHttpRequest();
else if (window.ActiveXObject)
this._xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}catch (e){}
if (this._xmlhttp == null) throw new Error('Your browser doesn\'t support!');
this._xmlhttp.onreadystatechange = function () { oThis.XMLHttpCallBack(); };
try {
var temp = (/\?/g.test(this.src)?"&":"?") + "temp=" + String(new Date().getTime())
this._xmlhttp.open("get", this.src + temp, true);
this._xmlhttp.send(null);
}catch(e){ oLoad.setText(TreeConfig.unavaibleText);}
};
TreeNode.prototype.resetTree = function (oTree) {
for (var i=0; i<this.childNodes.length; i++)
this.childNodes[i].resetTree(oTree);
this._tree = oTree;
};
TreeNode.prototype.setOpen = function (v) {
this.open = v;
if (TreeConfig.useCookie) {
WebCookie.setValue("o" + this.id, v);
}
};
TreeNode.prototype.getOpen = function () {
var o = WebCookie.getValue("o" + this.id);
if (o != null)
return parseInt(o);
return 0;
};
TreeNode.prototype.toHTML = function() {
var o = this._item;
this.indent();
this.reloadIcon();
if (this.parentNode == null) o.removeChild(this._handler);
return o;
};
TreeNode.prototype.getRoot = function() {
var root = this;
while (root.parentNode) root = root.parentNode;
return root;
};
TreeNode.prototype.setText = function(sText) {
this.text = sText;
this._anchor.innerHTML = this.HTMLtoText(sText);
};
TreeNode.prototype.add = function(oItem) {
var tree = this._tree;
oItem.parentNode = this;
var len = this.childNodes.length;
this.childNodes[len] = oItem;
if (len > 0) {
var o = this.childNodes[len-1];
o.recalIndent(o.level, false);
o.reloadIcon();
} else if (tree) {
if (tree._rendered) this.open = 0;
this.reloadIcon();
}
if (tree) this.resetTree(tree);
this._container.style.display = this.open ? "" : "none";
this._container.appendChild(oItem.toHTML());
return oItem;
};
TreeNode.prototype.remove = function(f) {
for (var i=0; i<this.childNodes.length; i++) { this.childNodes[i].remove(true); }
this.unselect();
var v = this.getPreviousSibling();
var p = this.parentNode;
if (p) {
p.childNodes = p.childNodes.Remove(this);
if (p.childNodes.length > 0) {
var node = p.childNodes[p.childNodes.length-1];
node.recalIndent(node.level, true);
node.reloadIcon();
} else {
p.setOpen(0);
p._container.style.display = "none";
p.reloadIcon();
}
}
var tmp = this._item;
if (tmp) tmp.parentNode.removeChild(tmp);
delete TreeConfig[this.id];
if (v && !f) v.select(false);
};
TreeNode.prototype.toggle = function() {
if (this.childNodes.length>0) {
if (this.open) {
this.collapse();
}
else {
this.expand();
}
}
};
TreeNode.prototype.expand = function() {
this.setOpen(1);
if (! this.shown) {
this.shown = true;
if (this.src) this.getXML();
}
this.reloadIcon();
this._container.style.display = "";
if (typeof this.onexpand == "function") {
this.onexpand();
} else {
eval(this.onexpand);
}
};
TreeNode.prototype.collapse = function() {
this.setOpen(0);
this._container.style.display = "none";
this.reloadIcon();
this.select(false);
if (typeof this.oncollapse == "function") {
this.oncollapse();
} else {
eval(this.oncollapse);
}
};
TreeNode.prototype.async = function () {
var a = this._tree.context;
if (!a.length) return;
var id = a[a.length - 1];
var node = TreeHandler.all[id];
if (typeof(node) != 'undefined') {
if (node.parentNode == this) {
this._.context = a.slice(0, -1);
if (node.childNodes.length > 0)
node.expand();
else
node.select();
}
}
};
TreeNode.prototype.expandAll = function() {
if (this.childNodes.length>0 && !this.open) this.expand();
this.expandChildren();
};
TreeNode.prototype.collapseAll = function() {
this.collapseChildren();
if (this.childNodes.length>0 && this.open) this.collapse();
};
TreeNode.prototype.expandChildren = function() {
for (var i=0; i<this.childNodes.length; i++)
this.childNodes[i].expandAll();
};
TreeNode.prototype.collapseChildren = function() {
for (var i=0; i<this.childNodes.length; i++)
this.childNodes[i].collapseAll();
};
TreeNode.prototype.openURL = function() {
if (typeof this.href == "function") {
this.href();
} else if (this.href != TreeConfig.defaultHref) {
window.open(this.href, this.target);
}
};
TreeNode.prototype.select = function(b){
this._anchor.focus();
if (b) {
this.openURL();
}
};
TreeNode.prototype.unselect = function () {
this._anchor.className = "TreeNode-Anchor";
var selected = this._tree.getSelectedNode();
if (selected == this) this._tree.setSelectedNode(null);
};
TreeNode.prototype.focus = function () {
var node = this._tree.getSelectedNode();
if (node && node != this) { node.unselect(); }
this._tree.setSelectedNode(this);
var oItem = this._anchor;
oItem.className = "TreeNode-Anchor focus";
if (typeof this.onselect == "function") {
this.onselect();
} else {
eval(this.onselect);
}
};
TreeNode.prototype.blur = function () {
var oItem = this._anchor;
oItem.className = "TreeNode-Anchor selected";
};
TreeNode.prototype.contextMenu = function (e) {
e = e || window.event;
if (e.button == 2) {
if (typeof TreeConfig.contextmenu == "function")
TreeConfig.contextmenu();
return false;
}
return true;
};
TreeNode.prototype.getFirstChild = function() {
if (this.childNodes.length>0 && this.open)
return this.childNodes[0];
return this;
};
TreeNode.prototype.getLastChild = function() {
if (this.childNodes.length>0 && this.open)
return this.childNodes[this.childNodes.length-1].getLastChild();
return this;
};
TreeNode.prototype.getPreviousSibling = function() {
if (!this.parentNode) return null;
for (var i=0;i<this.parentNode.childNodes.length;i++)
if (this.parentNode.childNodes[i] == this) break;
if (i == 0)
return this.parentNode;
else
return this.parentNode.childNodes[i-1].getLastChild();
};
TreeNode.prototype.getNextSibling = function() {
if (!this.parentNode) return null;
for (var i=0;i<this.parentNode.childNodes.length;i++)
if (this.parentNode.childNodes[i] == this)break;
if (i == this.parentNode.childNodes.length-1)
return this.parentNode.getNextSibling();
else
return this.parentNode.childNodes[i+1];
}
TreeNode.prototype.KeyDown=function(e){
e = e || window.event;
var code = e.which || e.keyCode;
var o = this;
if (code == 37) {
if (this.open) this.collapse();
else {
if (this.parentNode) this.parentNode.select(false);
}
return false;
}
else if (code == 38) {
var el = o.getPreviousSibling();
if (el) el.select(false);
return false;
}
else if (code == 39) {
if (this.childNodes.length>0) {
if (!this.open) this.expand();
else {
var el = o.getFirstChild();
if(el) el.select(false);
}
}
return false;
}
else if (code == 40) {
if (this.open && this.childNodes.length>0) this.getFirstChild().select(false);
else {
var el = o.getNextSibling();
if (el) el.select(false);
}
return false;
}
else if (code == 13) {
this.toggle();
return true;
}
return true;
};

function CheckBoxTreeNode(sKey, sName, sText, sHref, sTarget, sTitle, sIcon, sOpenIcon, sXMLSrc) {
this._base = TreeNode;
this._base(sKey, sText, sHref, sTarget, sTitle, sIcon, sOpenIcon, sXMLSrc);
this.name = sName;
this.checked = false;
};
CheckBoxTreeNode.prototype = new TreeNode;
CheckBoxTreeNode.prototype.toHTML = function () {
this._base = TreeNode.prototype.toHTML;
this._base();
var oThis = this;
this._checkbox = document.createElement("input");
this._checkbox.id = this._checkbox.name = this.name;
this._checkbox.type = "checkbox";
this._checkbox.defaultChecked = this.parentNode instanceof CheckBoxTreeNode ? this.parentNode.getChecked() : this.checked;
this._checkbox.onclick = function () { oThis.check() };
this._checkbox.hideFocus = true;
this._item.insertBefore(this._checkbox, this._icon);
return this._item;
};
CheckBoxTreeNode.prototype.check = function () {
this.setCheckedChildren(this.getChecked());
this.setCheckedParent();
if (typeof this.oncheck == "function") {
this.oncheck();
} else {
eval(this.oncheck);
}
};
CheckBoxTreeNode.prototype.setCheckedChildren = function (b) {
for (var i=0,j=0; i<this.childNodes.length; i++) {
if (this.childNodes[i] instanceof CheckBoxTreeNode)
this.childNodes[i].setCheckedChildren(b);
}
this._checkbox.checked = b;
};
CheckBoxTreeNode.prototype.setCheckedParent = function () {
var p = this.parentNode;
if (p instanceof CheckBoxTreeNode) {
for (var i=0; i<p.childNodes.length; i++) {
if (!p.childNodes[i].getChecked()) break;
}
p._checkbox.checked = i == p.childNodes.length
p.setCheckedParent();
}
};
CheckBoxTreeNode.prototype.getChecked = function () {
return this._checkbox.checked;
};

//************
// TreeView
//************
function TreeView(sKey, sText, sHref, sTarget, sTitle, sIcon, sOpenIcon, sXMLSrc) {
this.base = TreeNode;
this.base(sKey, sText, sHref, sTarget, sTitle, sIcon, sOpenIcon, sXMLSrc);
this.icon = sIcon || TreeConfig.TreeIcon.root;
this.context = new Array();
this._rendered = false;
this._tree = this;
};
TreeView.prototype = new TreeNode;
TreeView.prototype.getSelectedNode = function () {
if (window.selectedNode) return window.selectedNode;
return null;
};
TreeView.prototype.setSelectedNode = function (oNode) {
window.selectedNode = oNode;
};
TreeView.prototype.setContext = function () {
this.context = new Array();
for (var i=arguments.length-1,j=0; i>=0; i--,j++) {
this.context[j] = arguments[i];
}
};
TreeView.prototype.create = function (oTarget) {
oTarget.appendChild(this.toHTML());
this._rendered = true;
if (this.childNodes.length>0 || this.open || this.src)
this.expand();
};
TreeView.prototype.toString = function () {
var obj = this.toHTML();
var o = document.createElement("div");
o.appendChild(obj);
this._rendered = true;
return o.innerHTML;
};