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給moz-firefox下添加IE方法和屬性

在IECN看到心云寫的關于互換select的JS,因里面用到removeNode和swapNode等方法,導致在Firefox下無效。剛剛Google了下,發現可以通過自定義原型來修正只在IE下有效的屬性與方法。

原文參考:http://www.phpx.com/happy/top97619.html

修改方案如下:

<script language="Javascript" type="text/Javascript">
<!--
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

    */
    Event.prototype.__defineSetter__("returnValue",function(b){// 
        if(!b)this.preventDefault();
        return b;
        });
    Event.prototype.__defineSetter__("cancelBubble",function(b){// 設置或者檢索當前事件句柄的層次冒泡
        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(){// 返回鼠標移出的源節點
        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(){// 返回鼠標移入的源節點
        var node;
        if(this.type=="mouseout")
            node=this.relatedTarget;
        else if(this.type=="mouseover")
            node=this.target;
        if(!node)return;
        while(node.nodeType!=1)node=node.parentNode;
        return node;
        });
    Event.prototype.__defineGetter__("offsetX",function(){
        return this.layerX;
        });
    Event.prototype.__defineGetter__("offsetY",function(){
        return this.layerY;
        });
    }
if(window.Document){// 修正Document的DOM
    /*
                                IE5        MacIE5        Mozilla        Konqueror2.2        Opera5
    document.documentElement    yes        yes            yes            yes                    no
    document.activeElement        yes        null        no            no                    no

    */
    }
if(window.Node){// 修正Node的DOM
    /*
                                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

    */
    Node.prototype.replaceNode=function(Node){// 替換指定節點
        this.parentNode.replaceChild(Node,this);
        }
    Node.prototype.removeNode=function(removeChildren){// 刪除指定節點
        if(removeChildren)
            return this.parentNode.removeChild(this);
        else{
            var range=document.createRange();
            range.selectNodeContents(this);
            return this.parentNode.replaceChild(range.extractContents(),this);
            }
        }
    Node.prototype.swapNode=function(Node){// 交換節點
        var nextSibling=this.nextSibling;
        var parentNode=this.parentNode;
        node.parentNode.replaceChild(this,Node);
        parentNode.insertBefore(node,nextSibling);
        }
    }
if(window.HTMLElement){
    HTMLElement.prototype.__defineGetter__("all",function(){
        var a=this.getElementsByTagName("*");
        var node=this;
        a.tags=function(sTagName){
            return node.getElementsByTagName(sTagName);
            }
        return a;
        });
    HTMLElement.prototype.__defineGetter__("parentElement",function(){
        if(this.parentNode==this.ownerDocument)return null;
        return this.parentNode;
        });
    HTMLElement.prototype.__defineGetter__("children",function(){
        var tmp=[];
        var j=0;
        var n;
        for(var i=0;i<this.childNodes.length;i++){
            n=this.childNodes[i];
            if(n.nodeType==1){
                tmp[j++]=n;
                if(n.name){
                    if(!tmp[n.name])
                        tmp[n.name]=[];
                    tmp[n.name][tmp[n.name].length]=n;
                    }
                if(n.id)
                    tmp[n.id]=n;
                }
            }
        return tmp;
        });
    HTMLElement.prototype.__defineGetter__("currentStyle", function(){
        return this.ownerDocument.defaultView.getComputedStyle(this,null);
        });
    HTMLElement.prototype.__defineSetter__("outerHTML",function(sHTML){
        var r=this.ownerDocument.createRange();
        r.setStartBefore(this);
        var df=r.createContextualFragment(sHTML);
        this.parentNode.replaceChild(df,this);
        return sHTML;
        });
    HTMLElement.prototype.__defineGetter__("outerHTML",function(){
        var attr;
        var attrs=this.attributes;
        var str="<"+this.tagName;
        for(var i=0;i<attrs.length;i++){
            attr=attrs[i];
            if(attr.specified)
                str+=" "+attr.name+'="'+attr.value+'"';
            }
        if(!this.canHaveChildren)
            return str+">";
        return str+">"+this.innerHTML+"</"+this.tagName+">";
        });
    HTMLElement.prototype.__defineGetter__("canHaveChildren",function(){
        switch(this.tagName.toLowerCase()){
            case "area":
            case "base":
            case "basefont":
            case "col":
            case "frame":
            case "hr":
            case "img":
            case "br":
            case "input":
            case "isindex":
            case "link":
            case "meta":
            case "param":
                return false;
            }
        return true;
        });

    HTMLElement.prototype.__defineSetter__("innerText",function(sText){
        var parsedText=document.createTextNode(sText);
        this.innerHTML=parsedText;
        return parsedText;
        });
    HTMLElement.prototype.__defineGetter__("innerText",function(){
        var r=this.ownerDocument.createRange();
        r.selectNodeContents(this);
        return r.toString();
        });
    HTMLElement.prototype.__defineSetter__("outerText",function(sText){
        var parsedText=document.createTextNode(sText);
        this.outerHTML=parsedText;
        return parsedText;
        });
    HTMLElement.prototype.__defineGetter__("outerText",function(){
        var r=this.ownerDocument.createRange();
        r.selectNodeContents(this);
        return r.toString();
        });
    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);
        else
            this.removeEventListener(shortTypeName,fHandler,true);
        }
    HTMLElement.prototype.contains=function(Node){// 是否包含某節點
        do if(Node==this)return true;
        while(Node=Node.parentNode);
        return false;
        }
    HTMLElement.prototype.insertAdjacentElement=function(where,parsedNode){
        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);
                else
                    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);
        else
            this.removeEventListener(shortTypeName,fHandler,true);
        }
    }
//-->
</script>

JavaScript技術給moz-firefox下添加IE方法和屬性,轉載需保留來源!

鄭重聲明:本文版權歸原作者所有,轉載文章僅為傳播更多信息之目的,如作者信息標記有誤,請第一時間聯系我們修改或刪除,多謝。

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