`

Listener Browser Close Event

JavaScriptHTML浏览器 
阅读更多

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>test browser close event</title>

<script type="text/javascript">
    window.onbeforeunload = onbeforeunload_handler;
    window.onunload = onunload_handler;
    function onbeforeunload_handler() {

        var n = window.event.screenX - window.screenLeft;
        var b = n > document.documentElement.scrollWidth - 20;
        if (b && window.event.clientY < 0 || window.event.altKey) {
            // 是关闭而非刷新
            var warning = "您正在关闭浏览器! 确认退出?";
            return warning;
        } else {
            var warning = "刷新或离开";
            alert(warning);
        }
    }

    function onunload_handler() {
        var warning = "谢谢光临";
        alert(warning);
    }
</script>
</head>
<body>
</body>
</html>

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