阻止事件的默认行为
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>自定义右键菜单</title>
<style>
*{
margin: 0;
padding: 0;
}
#box{
width: 200px;
height: 600px;
border: 1px solid #f00;
display:none;
position: absolute;
}
#list li{
list-style: none;
width: 200px;
height: 100px;
text-align: center;
line-height: 100px;
background: #eee;
border: 1px solid #000;
}
</style>
</head>
<body>
<input type="text" id="inp">
<div id="box">
<ul id="list">
<li>说多了几分</li>
<li>说多了几分</li>
<li>说多了几分</li>
<li>说多了几分</li>
<li>说多了几分</li>
</ul>
</div>
</body>
<script>
var box = document.getElementById('box');
var lis = document.querySelectorAll( 'li');
var inp = document.querySelector('input');
// console.log( inp.value )
document.oncontextmenu = function( eve ){
var e = eve || window.event;
stop ( e );
box.style.display = 'block';
box.style.left = e.clientX +'px';
box.style.top = e.clientY +'px';
}
document.onclick = function(){
box.style.display = 'none';
}
for( var i = 0 ; i < lis.length; i++){
lis[i].onmouseover = function(){
this.style.background = '#f66';
}
lis[i].onmouseout = function(){
this.style.background = "";
}
lis[i].onclick= function(){
inp.value = this.innerHTML;
}
}
function stop( e ){
if( e.preventDafualt ){
e.preventDefault();
}else{
window.event.returnValue = false;
}
}
</script>
</html>
