firefox实现ie的方法和属性
2008-01-22 16:16
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<!--
if(window.Event){// 修正Event的DOM
/*
IE5 MacIE5 Mozilla Konqueror2.2 Opera5
event yes yes yes yes yes
event.returnValue yes yes no no no
event.cancelBubble yes yes no no no
event.srcElement yes yes no no no
event.fromElement yes yes no no no
*/
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if(!b)this.preventDefault();
return b;
});
Event.prototype.__defineSetter__("cancelBubble",function(b){// 设置或者检索当前事件句柄的层次冒泡
if(b)this.stopPropagation();
return b;
});
Event.prototype.__defineGetter__("srcElement",function(){
var node=this.target;
while(node.nodeType!=1)node=node.parentNode;
return node;
});
Event.prototype.__defineGetter__("fromElement",function(){// 返回鼠标移出的源节点
var node;
if(this.type=="mouseover")
node=this.relatedTarget;
else if(this.type=="mouseout")
node=this.target;
if(!node)return;
while(node.nodeType!=1)node=node.parentNode;
return node;
});
Event.prototype.__defineGetter__("toElement",function(){// 返回鼠标移入的源节点
var node;
if(this.type=="mouseout")
node=this.relatedTarget;
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node=this.target;
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IE5 MacIE5 Mozilla Konqueror2.2 Opera5
document.documentElement yes yes yes yes no
document.activeElement yes null no no no
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IE5 MacIE5 Mozilla Konqueror2.2 Opera5
Node.contains yes yes no no yes
Node.replaceNode yes no no no no
Node.removeNode yes no no no no
Node.children yes yes no no no
Node.hasChildNodes yes yes yes yes no
Node.childNodes yes yes yes yes no
Node.swapNode yes no no no no
Node.currentStyle yes yes no no no
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Node.prototype.replaceNode=function(Node){// 替换指定节点
this.parentNode.replaceChild(Node,this);
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range.selectNodeContents(this);
return this.parentNode.replaceChild(range.extractContents(),this);
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r.setStartBefore(this);
var df=r.createContextualFragment(sHTML);
this.parentNode.replaceChild(df,this);
return sHTML;
});
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var attr;
var attrs=this.attributes;
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return str+">"+this.innerHTML+"</"+this.tagName+">";
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HTMLElement.prototype.__defineGetter__("canHaveChildren",function(){
switch(this.tagName.toLowerCase()){
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case "base":
case "basefont":
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case "hr":
case "img":
case "br":
case "input":
case "isindex":
case "link":
case "meta":
case "param":
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return true;
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var parsedText=document.createTextNode(sText);
this.innerHTML=parsedText;
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HTMLElement.prototype.__defineGetter__("innerText",function(){
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r.selectNodeContents(this);
return r.toString();
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HTMLElement.prototype.__defineSetter__("outerText",function(sText){
var parsedText=document.createTextNode(sText);
this.outerHTML=parsedText;
return parsedText;
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HTMLElement.prototype.__defineGetter__("outerText",function(){
var r=this.ownerDocument.createRange();
r.selectNodeContents(this);
return r.toString();
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HTMLElement.prototype.attachEvent=function(sType,fHandler){
var shortTypeName=sType.replace(/on/,"");
fHandler._ieEmuEventHandler=function(e){
window.event=e;
return fHandler();
}
this.addEventListener(shortTypeName,fHandler._ieEmuEventHandler,false);
}
HTMLElement.prototype.detachEvent=function(sType,fHandler){
var shortTypeName=sType.replace(/on/,"");
if(typeof(fHandler._ieEmuEventHandler)=="function")
this.removeEventListener(shortTypeName,fHandler._ieEmuEventHandler,false);
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this.removeEventListener(shortTypeName,fHandler,true);
}
HTMLElement.prototype.contains=function(Node){// 是否包含某节点
do if(Node==this)return true;
while(Node=Node.parentNode);
return false;
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switch(where){
case "beforeBegin":
this.parentNode.insertBefore(parsedNode,this);
break;
case "afterBegin":
this.insertBefore(parsedNode,this.firstChild);
break;
case "beforeEnd":
this.appendChild(parsedNode);
break;
case "afterEnd":
if(this.nextSibling)
this.parentNode.insertBefore(parsedNode,this.nextSibling);
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this.parentNode.appendChild(parsedNode);
break;
}
}
HTMLElement.prototype.insertAdjacentHTML=function(where,htmlStr){
var r=this.ownerDocument.createRange();
r.setStartBefore(this);
var parsedHTML=r.createContextualFragment(htmlStr);
this.insertAdjacentElement(where,parsedHTML);
}
HTMLElement.prototype.insertAdjacentText=function(where,txtStr){
var parsedText=document.createTextNode(txtStr);
this.insertAdjacentElement(where,parsedText);
}
HTMLElement.prototype.attachEvent=function(sType,fHandler){
var shortTypeName=sType.replace(/on/,"");
fHandler._ieEmuEventHandler=function(e){
window.event=e;
return fHandler();
}
this.addEventListener(shortTypeName,fHandler._ieEmuEventHandler,false);
}
HTMLElement.prototype.detachEvent=function(sType,fHandler){
var shortTypeName=sType.replace(/on/,"");
if(typeof(fHandler._ieEmuEventHandler)=="function")
this.removeEventListener(shortTypeName,fHandler._ieEmuEventHandler,false);
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