单击浏览器后退按钮时如何调用事件 [英] How to call an event when browser back button is clicked

问题描述

单击浏览器后退按钮时如何调用jquery事件.我在asp.net mvc中使用了一个单页应用程序，当用户按下浏览器的后退按钮时，我想显示一个确认框以离开屏幕.我如何在浏览器后退按钮上调用jquery函数.请帮忙.我已经搜索并发现了推送状态事件，但在上述情况下我没有得到如何使用它的机会.

How to call a jquery event when browser back button is clicked. I am using a single page application in asp.net mvc and i want to show a confirm box to leave the screen when user press the back button of the browser. How can i call a jquery function on browser back button. Please help. I have searched and found push state event but i did not get how to use it in my case described above.

推荐答案

window.userInteractionTimeout = null;
window.userInteractionInHTMLArea = false;
window.onBrowserHistoryButtonClicked = null; // This will be your event handler for browser navigation buttons clicked

$(document).ready(function () {
    $(document).mousedown(function () {
        clearTimeout(window.userInteractionTimeout);
        window.userInteractionInHTMLArea = true;
        window.userInteractionTimeout = setTimeout(function () {
            window.userInteractionInHTMLArea = false;
        }, 500);
    });

$(document).keydown(function () {
        clearTimeout(window.userInteractionTimeout);
        window.userInteractionInHTMLArea = true;
        window.userInteractionTimeout = setTimeout(function () {
            window.userInteractionInHTMLArea = false;
        }, 500);
    });

    if (window.history && window.history.pushState) {
        $(window).on('popstate', function () {
            if (!window.userInteractionInHTMLArea) {
                // alert('Browser Back or Forward button was pressed.');
                 }
    if(window.onBrowserHistoryButtonClicked ){
    window.onBrowserHistoryButtonClicked ();
            }
        });
    }
});

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