自定义上下文菜单，contextmenu事件

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Title</title>

    <style>

        #myDiv {

            cursor: context-menu;

        }

        #programMenu {

            padding: 0;

            width: 155px;

            position: absolute;

            visibility: hidden;

            background: #fff;

            color: #006696;

            font-size: 12px;

            border: 1px solid #cccccc;

            border-radius: 5px;

        }

        #programMenu li {

            list-style: none;

            list-style-position: outside;

            height: 25px;

            line-height: 25px;

            cursor: pointer;

            padding-left: 20px;

        }

        #programMenu li:not([class="disabled"]):focus,

        #programMenu li:not([class="disabled"]):hover,

        #programMenu li:not([class="disabled"]):active {

            background: #3f9afa;

            color: #f7fffc;

        }

        #programMenu li.disabled {

            color: #b7b7b7;

        }

    </style>

</head>

<body>

<div id="myDiv">dYou’ve been added to the denstiny-code organization!

    Here are some quick tips for a first-time organization member.

    Use the switch context button in the upper left corner of this page to switch between your personal context (dxdleikai) and organizations you are a member of.

    After you switch contexts you’ll see an organization-focused dashboard that lists out organization repositories and activities. </div>

<ul id="programMenu">

    <li>复制</li>

    <li>粘贴</li>

    <li class="disabled">删除</li>

</ul>

<script>

    var div = document.getElementById('myDiv');

    div.addEventListener('contextmenu', function (e) {

        e.preventDefault();

        var menu = document.getElementById('programMenu');

        menu.style.left = e.clientX + 'px';

        menu.style.top = e.clientY + 'px';

        menu.style.visibility = 'visible';

    }, false);

    document.addEventListener('click', function (e) {
        if (e.which === 1) { // 兼容firefox

            document.getElementById('programMenu').style.visibility = 'hidden';

        }

    }, false);

</script>

</body>

</html>

ContextMenu

自定义上下文菜单，contextmenu事件