当前位置: 首页 > 图文教程 > 网络编程 > Javascript > xtree.js 代码

Javascript
JavaScript 拖拽实现(附注释),最经典简单短小精悍!
学习drag and drop js实现代码经典之作
jquery创建div 实现代码
jquery遍历input取得input的name
jQuery 对象中的类数组操作
js 发个判断字符串是否为符合标准的函数
细品javascript 寻址,闭包,对象模型和相关问题
在IE上直接编辑网页内容的js代码(IE地址栏js)
一个选择最快的服务器转向代码
JQUERY 对象与DOM对象之转换
javascript 对象比较实现代码
jquery 获取json数据实现代码
Firefox div高度自适应
xml和web特殊字符
js 表单验证方法(实用)
ie和firefox不兼容的解决方法集合
js 数组操作代码集锦
js checkbox(复选框) 使用集锦
JS 判断代码全收集
理解JavaScript的caller,callee,call,apply

Javascript 中的 xtree.js 代码


出处:互联网   整理: 软晨网(RuanChen.com)   发布: 2009-10-12   浏览: 363 ::
收藏到网摘: n/a

复制代码 代码如下:

//** Powered by Fason
//** Email: [email protected]
var icon={
root :'image/root.gif',
open :'image/open.png',
close :'image/close.png',
file :'image/file.png',
Rplus :'image/Rplus.gif',
Rminus :'image/Rminus.gif',
join :'image/T.gif',
joinbottom:'image/L.gif',
plus :'image/Tplus.gif',
plusbottom:'image/Lplus.gif',
minus :'image/Tminus.gif',
minusbottom:'image/Lminus.gif',
blank :'image/blank.gif',
line :'image/I.gif'
};
var Global={
id:0,
getId:function(){return this.id++;},
all:[],
selectedItem:null,
defaultText:"treeItem",
defaultAction:"javascript:void(0)",
defaultTarget:"_blank"
}
function preLoadImage(){
for(i in icon){
var tem=icon[i];
icon[i]=new Image()
icon[i].src=tem
}
};preLoadImage();
function treeItem(text,action,target,title,Icon)
{
this.id=Global.getId();
this.level=0;
this.text=text?text:Global.defaultText;
this.action=action?action:Global.defaultAction;
this.target=target?target:Global.defaultTarget;
this.title=title?title:this.text;
this.isLast=true;
this.childNodes=new Array();
this.indent=new Array();
this.parent=null;
var c =0;
if(getCookie("item"+this.id) != null) c = getCookie("item"+this.id);
this.open=parseInt(c);
this.load=false;
this.setuped=false;
this.JsItem=null;
this.container=document.createElement("div");
this.icon=Icon;
Global.all[Global.all.length]=this;
}
treeItem.prototype.toString = function()
{
var o = this;
var oItem = document.createElement("div");
oItem.id = "treeItem"+this.id
oItem.className = "treeItem";
oItem.noWrap = true;
oItem.onselectstart = function(){ return false;}
oItem.oncontextmenu = function(){ return false;}
this.JsItem = oItem;
this.drawIndents();
var iIcon = document.createElement("img");
iIcon.align = "absmiddle";
iIcon.src = this.childNodes.length>0?(this.open?(this.level>0?(this.isLast?icon.minusbottom.src:icon.minus.src):icon.Rminus.src):(this.level>0?(this.isLast?icon.plusbottom.src:icon.plus.src):icon.Rplus.src)):(this.level>0?(this.isLast?icon.joinbottom.src:icon.join.src):icon.blank.src);
iIcon.id = "treeItem-icon-handle-" + this.id;
iIcon.onclick = function(){ o.toggle();};
oItem.appendChild(iIcon);
var iIcon = document.createElement("img");
iIcon.align = "absmiddle";
iIcon.src = this.icon?this.icon:(this.childNodes.length>0?(this.open?icon.open.src:icon.close.src):icon.file.src);
iIcon.id = "treeItem-icon-folder-" + this.id;
iIcon.onclick = function(){ o.select();};
iIcon.ondblclick = function(){ o.toggle();};
oItem.appendChild(iIcon);
var eText = document.createElement("span");
var eA=document.createElement("a");
eA.innerHTML = this.text;
eA.target = this.target;
eA.href = this.action;
eA.onkeydown = function(e){ return o.KeyDown(e);}
if(this.action == Global.defaultAction) eA.onclick = function(){ o.toggle(); return false;}
eText.appendChild(eA);
eText.id = "treeItem-text-" + this.id;
eText.className = "treeItem-unselect"
eText.onclick = function(){ o.select(1);};
eText.title = this.title;
oItem.appendChild(eText);
this.container.id = "treeItem-container-"+this.id;
this.container.style.display = this.open?"":"none";
oItem.appendChild(this.container);
return oItem;
}
treeItem.prototype.root = function()
{
var p = this;
while(p.parent)
p = p.parent;
return p;
}
treeItem.prototype.setText = function(sText)
{
if(this.root().setuped)
{
var oItem = document.getElementById("treeItem-text-" + this.id);
oItem.firstChild.innerHTML = sText;
}
this.text = sText;
}
treeItem.prototype.setIndent = function(l,v)
{
for(var i=0;i<this.childNodes.length;i++)
{
this.childNodes[i].indent[l] = v;
this.childNodes[i].setIndent(l,v);
}
}
treeItem.prototype.drawIndents = function()
{
var oItem = this.JsItem;
for(var i=0;i<this.indent.length;i++){
var iIcon = document.createElement("img");
iIcon.align = "absmiddle";
iIcon.id = "treeItem-icon-" + this.id + "-" + i;
iIcon.src = this.indent[i]?icon.blank.src:icon.line.src;
oItem.appendChild(iIcon);
}
}
treeItem.prototype.add = function(oItem)
{
oItem.parent=this;
this.childNodes[this.childNodes.length]=oItem;
oItem.level=this.level+1;
oItem.indent=this.indent.concat();
oItem.indent[oItem.indent.length]=this.isLast;
if(this.childNodes.length>1){
var o=this.childNodes[this.childNodes.length-2];
o.isLast=false;
o.setIndent(o.level,0);
if(this.root().setuped)o.reload(1);
}
else if(this.root().setuped)
this.reload(0);
this.container.appendChild(oItem.toString());
this.container.style.display=this.open?"":"none";
}
treeItem.prototype.loadChildren = function()
{
//do something
}
treeItem.prototype.remove = function()
{
var tmp = this.getPreviousSibling();
//if(tmp){ tmp.select();}
this.removeChildren();
var p = this.parent;
if(!p){ return };
if(p.childNodes.length>0){
var o = p.childNodes[p.childNodes.length-1];
o.isLast = true;
o.setIndent(o.level,1);
if(o.root().setuped)o.reload(1);
}
else
p.reload();
}
treeItem.prototype.removeChildren = function ()
{
if(this == Global.selectedItem){ Global.selectedItem = null;}
for(var i=this.childNodes.length-1;i>=0;i--)
this.childNodes[i].removeChildren();
var o = this;
var p = this.parent;
if (p) { p.childNodes = p.childNodes._remove(o);}
Global.all[this.id] = null
var oItem = document.getElementById("treeItem"+this.id);
if (oItem) { oItem.parentNode.removeChild(oItem); }
}
treeItem.prototype.reload = function(flag)
{
if (flag){
for(var j=0;j<this.childNodes.length;j++){ this.childNodes[j].reload(1);}
for(var i=0;i<this.indent.length;i++)
document.getElementById("treeItem-icon-" +this.id+ "-"+i).src = this.indent[i]?icon.blank.src:icon.line.src;
}
document.getElementById("treeItem-icon-handle-" +this.id).src = this.childNodes.length>0?(this.open?(this.level>0?(this.isLast?icon.minusbottom.src:icon.minus.src):icon.Rminus.src):(this.level>0?(this.isLast?icon.plusbottom.src:icon.plus.src):icon.Rplus.src)):(this.level>0?(this.isLast?icon.joinbottom.src:icon.join.src):icon.blank.src);
if (!this.icon)
document.getElementById("treeItem-icon-folder-"+this.id).src = this.childNodes.length>0?(this.open?icon.open.src:icon.close.src):icon.file.src;
}
treeItem.prototype.toggle = function()
{
if(this.childNodes.length>0){
if(this.open)
this.collapse();
else
this.expand();
}
}
treeItem.prototype.expand = function()
{
this.open=1;
setCookie("item"+this.id,1);
if(!this.load){
this.load=true;
this.loadChildren();
this.reload(1);
}
else
this.reload(0);
this.container.style.display = "";
}
treeItem.prototype.collapse = function()
{
this.open=0;
setCookie("item"+this.id,0);
this.container.style.display = "none";
this.reload(0);
this.select(1);
}
treeItem.prototype.expandAll = function()
{
if(this.childNodes.length>0 && !this.open)this.expand();
this.expandChildren();
}
treeItem.prototype.collapseAll = function()
{
this.collapseChildren();
if(this.childNodes.length>0 && this.open)this.collapse();
}
treeItem.prototype.expandChildren = function()
{
for(var i=0;i<this.childNodes.length;i++)
this.childNodes[i].expandAll();
}
treeItem.prototype.collapseChildren = function()
{
for(var i=0;i<this.childNodes.length;i++)
this.childNodes[i].collapseAll()
}
treeItem.prototype.openURL=function()
{
if(this.action!=Global.defaultAction){
window.open(this.action,this.target);
}
}
treeItem.prototype.select=function(o)
{
if (Global.selectedItem) Global.selectedItem.unselect();
var oItem = document.getElementById("treeItem-text-" + this.id);
oItem.className = "treeItem-selected";
oItem.firstChild.focus();
Global.selectedItem = this;
if(!o) this.openURL();
}
treeItem.prototype.unselect=function()
{
var oItem = document.getElementById("treeItem-text-" + this.id);
oItem.className = "treeItem-unselect";
oItem.firstChild.blur();
Global.selectedItem = null;
}
treeItem.prototype.setup = function(oTaget)
{
oTaget.appendChild(this.toString());
this.setuped = true;
if(this.childNodes.length>0 || this.open) this.expand();
}
/**********************************************/
/*
Arrow Key Event
*/
/**********************************************/
treeItem.prototype.getFirstChild = function()
{
if(this.childNodes.length>0 && this.open)
return this.childNodes[0];
return this;
}
treeItem.prototype.getLastChild = function()
{
if(this.childNodes.length>0 && this.open)
return this.childNodes[this.childNodes.length-1].getLastChild();
return this;
}
treeItem.prototype.getPreviousSibling = function()
{
if(!this.parent) return null;
for(var i=0;i<this.parent.childNodes.length;i++)
if(this.parent.childNodes[i] == this)break;
if(i == 0)
return this.parent;
else
return this.parent.childNodes[i-1].getLastChild();
}
treeItem.prototype.getNextSibling = function()
{
if(!this.parent) return null;
for(var i=0;i<this.parent.childNodes.length;i++)
if(this.parent.childNodes[i] == this)break;
if(i == this.parent.childNodes.length-1)
return this.parent.getNextSibling();
else
return this.parent.childNodes[i+1];
}
treeItem.prototype.KeyDown=function(e){
var code,o;
if(!e) e = window.event;
code = e.which ? e.which : e.keyCode;
o = this;
if(code == 37)
{
if(o.open) o.collapse();
else
{
if(o.parent) o.parent.select();
}
return false;
}
else if(code == 38)
{
var tmp = o.getPreviousSibling();
if(tmp) tmp.select();
return false;
}
else if(code == 39)
{
if(o.childNodes.length>0)
{
if(!o.open) o.expand();
else
{
var tmp = o.getFirstChild();
if(tmp) tmp.select();
}
}
return false;
}
else if(code == 40)
{
if(o.open&&o.childNodes.length>0)o.getFirstChild().select();
else
{
var tmp = o.getNextSibling();
if(tmp) tmp.select();
}
return false;
}
else if(code == 13)
{
o.toggle();
o.openURL();
return false;
}
return true;
}
/*****************************************************/
Array.prototype.indexOf=function(o){
for(var i=0;i<this.length;i++)
if(this[i]==o)return i;
return -1;
}
Array.prototype.removeAt=function(i){
return this.slice(0,i).concat(this.slice(i+1))
}
Array.prototype._remove=function(o){
var i=this.indexOf(o);
if(i!= -1) return this.removeAt(i)
return this
}
/*****************************************************/
/*****************************************************/
/*
xtreeItem Class
*/
/*****************************************************/
function xtreeItem(uid,text,action,target,title,Icon,xml){
this.uid=uid;
this.base=treeItem;
this.base(text,action,target,title,Icon);
this.Xml=xml;
}
xtreeItem.prototype=new treeItem;
xtreeItem.prototype.parseElement=function(dom){
return dom.selectSingleNode("/TreeNode");
}
xtreeItem.prototype.addNodesLoop = function(oItem)
{
for(var i=0;i<oItem.childNodes.length;i++)
{
var o = oItem.childNodes[i];
var tmp = new xtreeItem(o.getAttribute("id"),o.getAttribute("text"),o.getAttribute("href"),o.getAttribute("target"),o.getAttribute("title"),o.getAttribute("icon"),o.getAttribute('Xml'));
this.add(tmp);
if(o.getAttribute("Xml")) tmp.add(new treeItem("Loading..."));
else
{
tmp.load=true;
tmp.addNodesLoop(o);
}
}
}
xtreeItem.prototype.loadChildren=function()
{
var oItem = this;
var oLoad = oItem.childNodes[0];
var XmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
XmlHttp.onreadystatechange=function(){
if(XmlHttp.readyState==4){
if(XmlHttp.status==200){
if(XmlHttp.responseXML.xml == ""){ oLoad.setText("unavaible1");return;}
var XmlItem=oItem.parseElement(XmlHttp.responseXML.documentElement);
if(XmlItem.childNodes.length == 0){ oLoad.setText("unavaible") }
else
{
oItem.addNodesLoop(XmlItem);
for(var i=0;i<oItem.childNodes.length;i++)
{
if(parseInt(getCookie("item"+oItem.childNodes[i].id)) ==1)
{ oItem.childNodes[i].expand();}
}
if(Global.selectedItem == oItem.childNodes[0])oItem.select();
oLoad.remove();
}
}
else{
oLoad.setText("unavaible");
}
XmlHttp = null;
oItem.select(1);
}
}
try{
XmlHttp.open("get",this.Xml+(/\?/g.test(this.Xml)?"&":"?")+"temp="+Math.random(),true);
XmlHttp.send();
}catch(e){ oLoad.setText("unavaible");}
}
xtreeItem.prototype.setup=function(oTarget){
this.add(new treeItem("Loading..."));
oTarget.appendChild(this.toString());
this.setuped=true;
if(this.childNodes.length>0 || this.open) this.expand();
}
/*****************************************************/
function setCookie(name,value)
{
var Days = 7;
var exp = new Date();
exp.setTime(exp.getTime() + Days*24*60*60*1000);
document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();
}
function getCookie(name)
{
var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));
if(arr != null) return unescape(arr[2]); return null;
}
function delCookie(name)
{
var exp = new Date();
exp.setTime(exp.getTime() - 1);
var cval=getCookie(name);
if(cval!=null) document.cookie= name + "="+cval+";expires="+exp.toGMTString();
}
"