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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

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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tag:上下文菜单详解电脑软件dropdownBootstrap

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