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Javascript
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prototype与jquery下Ajax实现的差别
用JS写的简单的计算器实现代码
javascript 数组操作实用技巧
JavaScript 中级笔记 第二章
JavaScript 中级笔记 第三章
JavaScript 中级笔记 第四章 闭包
JavaScript 中级笔记 第五章 面向对象的基础
Mootools 1.2教程 函数
Mootools 1.2教程 事件处理
通过Mootools 1.2来操纵HTML DOM元素
Mootools 1.2教程 设置和获取样式表属性
Mootools 1.2教程 输入过滤第一部分(数字)
Mootools 1.2教程 输入过滤第二部分(字符串)
Mootools 1.2教程 Fx.Tween的使用
Mootools 1.2教程 Fx.Morph、Fx选项和Fx事件
MooTools 1.2中的Drag.Move来实现拖放
Mootools 1.2教程 正则表达式
Mootools 1.2教程 定时器和哈希简介
Mootools 1.2教程 滚动条(Slider)

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: 192 ::
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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;
};