GettingBeforeUnload与setTimeout一起使用 [英] Getting onBeforeUnload to work with a setTimeout

问题描述

我正在尝试使onbeforeunload与各种设置的计时器一起工作，但是当返回到位时，我似乎无法启动它.我希望它可以与计时器一起使用，但是由于某些原因计时器无法正常工作.这是我正在使用的代码，非常感谢您在查看代码时所提供的帮助.

I am trying to get onbeforeunload to work with a set timer of sorts but I can't seem to get it to fire up when the return is in place. I am hoping it would work with a timer but for some reason the timer isn't working. Here is the code I am working and thank you for your help in looking at it much appreciated.

var validNavigation = false;

function wireUpEvents() {
    var leave_message = 'Leaving the page';

    jQuery(
        function goodbye() {
            jQuery(window).bind('onbeforeunload', function() {
                setTimeout(function() {
                    setTimeout(function() {
                        jQuery(document.body).css('background-color', 'red');
                    }, 10000);
                },1);

            return leave_message;
        });
    }); 

    function leave() {
        if(!validNavigation) {
            killSession();
        }
    }

    //set event handlers for the onbeforeunload and onunloan events
    window.onbeforeunload = goodbye;

    window.onunload=leave;
}

// Wire up the events as soon as the DOM tree is ready
jQuery(document).ready(function () {
    wireUpEvents();
});

推荐答案

onBeforeUnload 与 setTimeout 不兼容.执行 onBeforeUnload 后，将触发 onUnload ，页面将发生变化.这是在调用 setTimeout 回调之前发生的.

onBeforeUnload doesn't work with setTimeout. After onBeforeUnload executes, onUnload will be triggered and the page will change. This happens before the setTimeout callback is called.

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