一个轻量级的XHTML右键菜单[支持IE和firefox]

时间：2020-11-13 08:50:47|栏目：JavaScript代码|点击：次

目前很多在网络上流传的右键菜单都不支持XHTML，主要就是因为document.body和document.documentElement之间的不同造成的
还有一个就是很多右键菜单程序太大，于是自己写了一个迷你型的右键菜单，支持IE和firefox

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>adad</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<style>
#rightMenu{
 padding:2px;
 background-color:menu;
 cursor:default;
 position:absolute;
 z-index:900;
 border-right:1px solid #aaa;
 border-bottom:1px solid #aaa;
 border-top:1px solid #fff;
 border-left:1px solid #fff;
 font-size:14px;
 word-break:keep-all;
}
.menuItem{
 display:block;
 padding:3px;
}
</style>
<script>
/**
 *JRightMenu类，在浏览器里显示用户定制右键菜单
 *[注意]：只适用于XHTML
 *@author brull
 *@email brull@163.com
 *@date 2007-01-24
 */
/**
 *@param menuItem 菜单显示内容，是一个数组
 *@param handle 对应menuItem菜单的处理js代码段，同样是个数组
 */
JRightMenu=function (menuItem,handle){
 var rightMenu=document.createElement("div");
 var menuInnerHTML="";//菜单容器里的HTML内容
 var $items=this.menuItem=menuItem;
 var $handle=this.handle=handle;
 rightMenu.id="rightMenu";//id
 for(var i in $items){
 if($items[i].indexOf("<hr")!=-1)
 menuInnerHTML+=$items[i];
 else
 menuInnerHTML+=""
 +$items[i]
 +"";
 }
 rightMenu.innerHTML=menuInnerHTML;
 rightMenu.style.visibility = "visible";
 rightMenu.onmousedown=function(e){
 e=e||window.event;
 document.all?e.cancelBubble=true:e.stopPropagation();
 }
 rightMenu.onselectstart=function(){
 return false;
 }
 document.body.appendChild(rightMenu);
 this.menu=rightMenu;//方便别的方法引用
};
JRightMenu.prototype.show=function(e){
 e=e||window.event;
 var root=document.documentElement;
 var x = root.scrollLeft+e.clientX;//菜单左上角横坐标
 var y = root.scrollTop+e.clientY;//菜单左上角纵坐标
 if (this.menu.clientWidth+e.clientX > root.clientWidth){
 x=x-this.menu.clientWidth;
 }
 if (this.menu.clientHeight+e.clientY > root.clientHeight){
 y=y-this.menu.clientHeight;
 }
 this.menu.style.left = x+"px"; 
 this.menu.style.top = y+"px"; 
 this.menu.style.visibility = "visible";
 return false;
}
JRightMenu.prototype.hidden=function() { 
 this.menu.style.visibility = "hidden";
}
</script>
<script>
window.onload=function(){
rightMenu=new JRightMenu(["it’s mine!","it’s yours!"],["alert(’it is mine!’)","alert(’it is yours!’)"]);
}
document.oncontextmenu=function(evt){return rightMenu.show(evt);};
document.onclick=function(){rightMenu.hidden();}
</script>
</head>
<body>
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</body>
</html>

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