Javascript右键菜单类

代码简介:

这是自己写的一个右键菜单类,屏蔽掉了IE固有的右键菜单,一共有四个参数:第一个是出发显示右键菜单的div的id   第二个是右键菜单这个层的id,根据这个id去创建一个新的层,menuList是菜单项的列表,对应了点击一个菜单项后触发的函数,classList是菜单的class名称,以及菜单项对应的class名称,包含了鼠标滑过时的class。

代码内容:

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
   <title>Javascript右键菜单类_网页代码站(www.webdm.cn)</title>
<style type="text/css">
.cmenu
{
	position:absolute;
	top:100px;
	left:100px;
	200px;
	height:200px;
	background-color:white;
	border:1px solid pink;
	
}
.liAble
{
	font-family:"宋体";
	color:#6699CC;
	margin-left:10px;
	margin-top:5px;
	list-style-type:none;
	cursor:default;
}
.liMouseOver
{
	margin-left:10px;
	margin-top:5px;
	background-color:#CCFFFF;
	list-style-type:none;
	cursor:default;
}
</style>
</head>
<body>
<div style="margin-left:auto; margin-right:auto; height:300px; 60%;background-color:#CC6699" id="x">
</div>
<input type="hidden" id="value1" value="4" />
<input type="hidden" id="value2" value="5" />
<script type="text/javascript">
//右键菜单类
function RightHandMenu(div,menuDiv,menuList,classList)
{
	var oThis = this;
	this._menuList = 
	{
		
	}
	this._classList = 
	{
		objClass:'',
		MenuClass:'',
		liAbleClass:'',
		liMouseOverClass:''
	}
	this.Init = function()
	{
		
		this._obj = $(div);
		this._obj.oncontextmenu = function(e){oThis.ShowMenu(e)};
		this._obj.className = this._classList.objClass;
		document.onclick = function(){oThis.HiddenMenu()};
		objToObj(this._classList, classList);
		objToObj(this._menuList, menuList);		
	}
	
	this.CreateMenu = function()
	{
		if($(menuDiv))
		{
			alert("该ID已被占用");
			return;
		}
		this._menu = document.createElement("DIV");
		this._menu.id = menuDiv;
                this._menu.oncontextmenu = function(e){stopBubble(e)};
		this._menu.className = this._classList.MenuClass;
		this._menu.style.display = "none";
		document.body.appendChild(this._menu);
		
	}
	
	this.CreateMenuList = function()
	{
		for(var pro in this._menuList)
		{
			var li = document.createElement("LI");
			li.innerHTML = pro;
			this._menu.appendChild(li);
			li.className = this._classList.liAbleClass;
			li.onclick = this._menuList[pro];
			li.onmouseover = function(){oThis.ChangeLiClass(this,oThis._classList.liMouseOverClass)}
			li.onmouseout = function(){oThis.ChangeLiClass(this,oThis._classList.liAbleClass)}
		}
	}
	
	this.ChangeLiClass = function(obj,name)
	{
		obj.className = name
	}
	
	this.ShowMenu = function(e)
	{
		var e = e || window.event;
		stopBubble(e);
		var offsetX = e.clientX;
		var offsetY = e.clientY;
		with(this._menu.style)
		{
			display = "block";
			top = offsetY + "px";
			left = offsetX + "px";
		}
		
	}
	
	this.HiddenMenu = function()
	{
		this._menu.style.display = "none";
	}
	
	
	this.Init();
	this.CreateMenu();
	this.CreateMenuList();
}
function stopBubble(oEvent)
{
	if(oEvent.stopPropagation) oEvent.stopPropagation();
	else oEvent.cancelBubble = true;
	 if(oEvent.preventDefault) oEvent.preventDefault();
    else oEvent.returnValue = false;
}
 
function $(div)
{
	return 'string' == typeof div ? document.getElementById(div) : div;
}
function objToObj(destination,source)
{
	for(var pro in source)
	{
		destination[pro] = source[pro];
	}
	return destination;
}
//构造右键菜单
function Edit()
{
	alert("edit");
}
function Delete()
{
	alert("delete");
}
var menuList = 
{
	编辑:Edit,
	删除:Delete
}
var classList = 
{
	MenuClass:'cmenu',
	liAbleClass:'liAble',
	liMouseOverClass:'liMouseOver'
}
var x = new RightHandMenu("x","testDiv",menuList,classList)
</script>
</body>
</html>
<br>
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代码来自:http://www.webdm.cn/webcode/42f19ed3-e89b-490b-a781-10e440c812b3.html

原文地址:https://www.cnblogs.com/webdm/p/2063014.html