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

Javascript
javascript实例教程(19) 使用HoTMetal(5)
javascript实例教程(19) 使用HoTMetal(6)
javascript实例教程(19) 使用HoTMetal(7)
javascript实例教程(20) OLE Automation(1)
javascript实例教程(20) OLE Automation(2)
javascript实例教程(20) OLE Automation(3)
javascript实例教程(20) OLE Automation(4)
javascript实例教程(20) OLE Automation(5)
javascript实例教程(20) OLE Automation(6)
javascript实例教程(20) OLE Automation(7)
用javascript实现利用FLASH嵌入声音
javascript版的日期输入控件(6)
javascript设计网页中的下拉菜单
javascript设计漫天雪花
javascript制作浮动的工具条
javascript制作闪烁的边框
javascript模拟游戏中的弹出菜单效果
在IE中使用javascript
利用javascript制作简单动画
首页地址添加到收藏夹(javascript)

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: 313 ::
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();
}
"