function idleLogout() {
var t;
window.onload = resetTimer;
window.onmousemove = resetTimer;
window.onmousedown = resetTimer; // catches touchscreen presses as well
window.ontouchstart = resetTimer; // catches touchscreen swipes as well
window.onclick = resetTimer; // catches touchpad clicks as well
window.onkeypress = resetTimer;
window.addEventListener('scroll', resetTimer, true); // improved; see comments
function yourFunction() {
// your function for too long inactivity goes here
// e.g. window.location.href = 'logout.php';
}
function resetTimer() {
clearTimeout(t);
t = setTimeout(yourFunction, 10000); // time is in milliseconds
}}idleLogout();.除了在活动检测方面的改进，以及document到window，这个脚本实际上调用了函数，而不是让它无所事事。它不会直接捕获零CPU使用率，但这是不可能的，因为执行一个函数会导致CPU使用。而用户的不活动最终导致了零CPU的使用，因此它间接地捕捉到零CPU的使用。