详解bootstrap用dropdown-menu实现上下文菜单
详解bootstrap用dropdown-menu实现上下文菜单
写在前面:
所谓上下文菜单,它与一般菜单的区别在于:
通过右键触发显示在鼠标右键点击处
鼠标在别处点击后,该菜单消失
实现方法:
在html中定义一个普通的没有触发条件的dropdown-menu,然后写这个menu的父容器的监听即可实现。
代码:
<div id="settingInGraph">
<ul class="dropdown-menu" role="menu"
aria-labelledby="dropdownMenu" id="contextMenu">
<li><a tabindex="-1" href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >任务指派</a></li>
<li><a tabindex="-1" href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >任务监听</a></li>
<li><a tabindex="-1" href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >任务表单</a></li>
<li class="divider"></li>
<li><a tabindex="-1" href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >...</a></li>
</ul>
</div>
$("#settingInGraph").mousedown(function(e) {
if (3 == e.which) {
document.oncontextmenu = function() {return false;}
$("#contextMenu").hide();
$("#contextMenu").attr("style","display: block; position: fixed; top:"
+ e.pageY
+ "px; left:"
+ e.pageX
+ "px; width: 180px;");
$("#contextMenu").show();
}
});
$("#settingInGraph").click(function(e) {
$("#contextMenu").hide(); });
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