JS鼠标右键事件

在需要右键的地方加上

onmousedown="righthit()";

funciton righthit(){
    if (event.button==2)
    { 
        //DoSomeThing
    }
 
}

<body> <script>//requestAnimationFrame兼容写法 if(!window.requestAnimationFrame){ var lastTime = 0; window.requestAnimationFrame = function(callback){ var currTime = new Date().getTime(); var timeToCall = Math.max(0,16.7-(currTime - lastTime)); var id = window.setTimeout(function(){ callback(currTime + timeToCall); },timeToCall); lastTime = currTime + timeToCall; return id; } } if (!window.cancelAnimationFrame) { window.cancelAnimationFrame = function(id) { clearTimeout(id); }; } //事件处理程序兼容写法 function addEvent(target,type,handler){ if(target.addEventListener){ target.addEventListener(type,handler,false); }else{ target.attachEvent('on'+type,function(event){ return handler.call(target,event); }); } } /*******生成元素*******/ var list = document.createElement('ul'); list.id = 'list'; list.innerHTML = '<li id="menuTop">回到顶部</li>\ <li id="menuFavour">点赞(<span id="favourNum">0</span>赞)</li>\ <li id="menuCommand">评论</li>'; document.body.appendChild(list); /*******添加样式**********/ function loadStyles(str){ var style = document.createElement("style"); style.type = "text/css"; try{ style.innerHTML = str; }catch(ex){ style.styleSheet.cssText = str; } var head = document.getElementsByTagName('head')[0]; head.appendChild(style); } loadStyles("#list{margin: 0!important;\ padding: 0!important;\ width: 120px;\ text-align: center;\ cursor: pointer;\ font:20px/40px '宋体';\ background-color: #eee;\ position:fixed;\ display:none;}\ #list li{list-style:none!important;}\ #list li:hover{background-color: lightblue;color: white;font-weight:bold;}"); //DOM结构稳定后，再操作 addEvent(window,'load', contextMenuLoad); function contextMenuLoad(){ /********显示和隐藏菜单***********/ addEvent(document,'click',function(){ list.style.display = 'none'; }) //右键点击时，菜单显示 document.oncontextmenu = function(e){ e = e || event; //通常情况下，菜单的位置就是鼠标的位置 list.style.left = e.clientX + 'px'; list.style.top = e.clientY + 'px'; //当鼠标的位置到视口底部的位置小于菜单的高度，则鼠标的位置为菜单的底部位置 if(document.documentElement.clientHeight - e.clientY < list.offsetHeight){ list.style.top = e.clientY - list.offsetHeight + 'px'; } //当鼠标的位置到视口右侧的位置小于菜单的宽度，则视口的右侧为菜单的右侧 if(document.documentElement.clientWidth - e.clientX < list.offsetWidth){ list.style.left = document.documentElement.clientWidth - list.offsetHeight + 'px'; } list.style.display = 'block'; //点击右键的同时按下ctrl键，那么将显示默认右键菜单 if(e.ctrlKey){ list.style.display = 'none'; //如果只是点击右键，则显示自定义菜单 }else{ return false; } } /*********回到顶部功能*********/ var timer = null; menuTop.onclick = function(){ cancelAnimationFrame(timer); //获取当前毫秒数 var startTime = +new Date(); //获取当前页面的滚动高度 var b = document.body.scrollTop || document.documentElement.scrollTop; var d = 500; var c = b; timer = requestAnimationFrame(function func(){ var t = d - Math.max(0,startTime - (+new Date()) + d); document.documentElement.scrollTop = document.body.scrollTop = t * (-c) / d + b; timer = requestAnimationFrame(func); if(t == d){ cancelAnimationFrame(timer); } }); }; /*********点赞功能**********/ //模拟原始点赞按钮的点击事件 var digg = document.getElementById('div_digg'); if(digg){ menuFavour.onclick = digg.children[0].onclick; } //获取赞成数的函数 function getfavourNum(){ if(digg){ favourNum.innerHTML = digg.children[0].children[0].innerHTML; } } //页面载入时获取赞成数 getfavourNum(); if(menuFavour.addEventListener){ menuFavour.addEventListener('click',function(){ setTimeout(function(){ getfavourNum(); },2000); }) }else{ menuFavour.attachEvent('onclick',function(){ setTimeout(function(){ getfavourNum(); },2000); }) } /*********评论功能*********/ menuCommand.onclick = function(){ document.getElementById('comment_form_container').scrollIntoView(); } } </script></body>