是否有可能每10秒运行一个函数，并检查一个“计数器”变量?如果可能的话，你可以在页面上进行鼠标悬停，不是吗?

如果是，使用鼠标悬停事件重置“counter”变量。如果函数被调用，并且计数器在您预先确定的范围之上，那么执行您的操作。

您可以在文档主体上附加一个单击或鼠标移动事件，以重置计时器。

有一个函数，你在定时间隔调用，检查定时器是否超过指定的时间(如1000毫秒)，并开始你的预加载。

根据equiman提供的输入:

class _Scheduler {
    timeoutIDs;

    constructor() {
        this.timeoutIDs = new Map();
    }

    addCallback = (callback, timeLapseMS, autoRemove) => {
        if (!this.timeoutIDs.has(timeLapseMS + callback)) {
            let timeoutID = setTimeout(callback, timeLapseMS);
            this.timeoutIDs.set(timeLapseMS + callback, timeoutID);
        }

        if (autoRemove !== false) {
            setTimeout(
                this.removeIdleTimeCallback, // Remove
                10000 + timeLapseMS, // 10 secs after
                callback, // the callback
                timeLapseMS, // is invoked.
            );
        }
    };

    removeCallback = (callback, timeLapseMS) => {
        let timeoutID = this.timeoutIDs.get(timeLapseMS + callback);
        if (timeoutID) {
            clearTimeout(timeoutID);
            this.timeoutIDs.delete(timeLapseMS + callback);
        }
    };
}

class _IdleTimeScheduler extends _Scheduler {
    events = [
        'load',
        'mousedown',
        'mousemove',
        'keydown',
        'keyup',
        'input',
        'scroll',
        'touchstart',
        'touchend',
        'touchcancel',
        'touchmove',
    ];
    callbacks;

    constructor() {
        super();
        this.events.forEach(name => {
            document.addEventListener(name, this.resetTimer, true);
        });

        this.callbacks = new Map();
    }

    addIdleTimeCallback = (callback, timeLapseMS) => {
        this.addCallback(callback, timeLapseMS, false);

        let callbacksArr = this.callbacks.get(timeLapseMS);
        if (!callbacksArr) {
            this.callbacks.set(timeLapseMS, [callback]);
        } else {
            if (!callbacksArr.includes(callback)) {
                callbacksArr.push(callback);
            }
        }
    };

    removeIdleTimeCallback = (callback, timeLapseMS) => {
        this.removeCallback(callback, timeLapseMS);

        let callbacksArr = this.callbacks.get(timeLapseMS);
        if (callbacksArr) {
            let index = callbacksArr.indexOf(callback);
            if (index !== -1) {
                callbacksArr.splice(index, 1);
            }
        }
    };

    resetTimer = () => {
        for (let [timeLapseMS, callbacksArr] of this.callbacks) {
            callbacksArr.forEach(callback => {
                // Clear the previous IDs
                let timeoutID = this.timeoutIDs.get(timeLapseMS + callback);
                clearTimeout(timeoutID);

                // Create new timeout IDs.
                timeoutID = setTimeout(callback, timeLapseMS);
                this.timeoutIDs.set(timeLapseMS + callback, timeoutID);
            });
        }
    };
}
export const Scheduler = new _Scheduler();
export const IdleTimeScheduler = new _IdleTimeScheduler();

我终于把这个工作在我的网站。我发现equiman的回答最有帮助。这个答案的问题是JavaScript中的alert()函数会暂停脚本执行。如果您像我一样希望发送一个警报，然后如果没有收到响应，站点将自动注销，那么暂停执行是一个问题。

解决方案是用自定义除法替换alert()，如下所述。

下面是代码:(注意:您需要更改第58行以重定向到您的站点的适当URL)

var inactivityTracker = function () { // Create an alert division var alertDiv = document.createElement("div"); alertDiv.setAttribute("style","position: absolute;top: 30%;left: 42.5%;width: 200px;height: 37px;background-color: red;text-align: center; color:white"); alertDiv.innerHTML = "You will be logged out in 5 seconds!!"; // Initialise a variable to store an alert and logout timer var alertTimer; var logoutTimer; // Set the timer thresholds in seconds var alertThreshold = 3; var logoutThreshold = 5; // Start the timer window.onload = resetAlertTimer; // Ensure timer resets when activity logged registerActivityLoggers(resetAlertTimer); // ***** FUNCTIONS ***** // // Function to register activities for alerts function registerActivityLoggers(functionToCall) { document.onmousemove = functionToCall; document.onkeypress = functionToCall; } // Function to reset the alert timer function resetAlertTimer() { clearTimeout(alertTimer); alertTimer = setTimeout(sendAlert, alertThreshold * 1000); } // Function to start logout timer function startLogoutTimer() { clearTimeout(logoutTimer); logoutTimer = setTimeout(logout, logoutThreshold * 1000); } // Function to logout function sendAlert() { // Send a logout alert document.body.appendChild(alertDiv); // Start the logout timer startLogoutTimer(); // Reset everything if an activity is logged registerActivityLoggers(reset); } // Function to logout function logout(){ //location.href = 'index.php'; } // Function to remove alert and reset logout timer function reset(){ // Remove alert division alertDiv.parentNode.removeChild(alertDiv); // Clear the logout timer clearTimeout(logoutTimer); // Restart the alert timer document.onmousemove = resetAlertTimer; document.onkeypress = resetAlertTimer; } }; <html> <script type="text/javascript" src="js/inactivityAlert.js"></script> <head> <title>Testing an inactivity timer</title> </head> <body onload="inactivityTracker();" > Testing an inactivity timer </body> </html>

我写了一个简单的jQuery插件，将做什么你正在寻找。

https://github.com/afklondon/jquery.inactivity

$(document).inactivity( {
    interval: 1000, // the timeout until the inactivity event fire [default: 3000]
    mouse: true, // listen for mouse inactivity [default: true]
    keyboard: false, // listen for keyboard inactivity [default: true]
    touch: false, // listen for touch inactivity [default: true]
    customEvents: "customEventName", // listen for custom events [default: ""]
    triggerAll: true, // if set to false only the first "activity" event will be fired [default: false]
});

脚本将监听鼠标，键盘，触摸和其他自定义事件不活动(空闲)，并触发全局“活动”和“不活动”事件。

您可以使用下面提到的解决方案

var idleTime;
$(document).ready(function () {
         reloadPage();
        $('html').bind('mousemove click mouseup mousedown keydown keypress keyup submit change mouseenter scroll resize dblclick', function () {
            clearTimeout(idleTime);
            reloadPage();
        });
});
function reloadPage() {
    clearTimeout(idleTime);
    idleTime = setTimeout(function () {
        location.reload();
    }, 3000);
}