感谢您看到我的问题。 我正在使用wp-pro-quiz插件进行测验。我想知道如果窗口没有对焦或模糊,我怎么能暂停计时器,并在它回到焦点时恢复它。 我的代码: 当它集中注意力时我会重置
var timelimit = (function () {
var _counter = config.timelimit;
var _intervalId = 0;
var instance = {};
instance.stop = function () {
if (_counter) {
window.clearInterval(_intervalId);
globalElements.timelimit.hide();
}
};
instance.start = function () {
var x;
var beforeTime;
if (!_counter)
return;
var $timeText = globalElements.timelimit.find('span').text(plugin.methode.parseTime(_counter));
var $timeDiv = globalElements.timelimit.find('.wpProQuiz_progress');
globalElements.timelimit.show();
$.winFocus(function (event) {
console.log("Blur\t\t", event);
},
function (event) {
console.log("Focus\t\t", event);
x = _counter * 1000;
beforeTime = +new Date();
});
_intervalId = window.setInterval(function () {
var diff = (+new Date() - beforeTime);
var elapsedTime = x - diff;
if (diff >= 500) {
$timeText.text(plugin.methode.parseTime(Math.ceil(elapsedTime / 1000)));
}
$timeDiv.css('width', (elapsedTime / x * 100) + '%');
if (elapsedTime <= 0) {
instance.stop();
plugin.methode.finishQuiz(true);
}
}, 16);
};
return instance;
})();
答案 0 :(得分:0)
使用此包装函数暂停,恢复超时。
var Timer;
Timer = function(callback, delay) {
var remaining, start, timerId;
timerId = void 0;
start = void 0;
remaining = delay;
this.pause = function() {
window.clearTimeout(timerId);
remaining -= new Date - start;
};
this.resume = function() {
start = new Date;
window.clearTimeout(timerId);
timerId = window.setTimeout(callback, remaining);
};
this.resume();
};
像这样初始化它,timer = new Timer("callback_function_here", 45000)
在这种情况下,回调和事件触发的总时间为45秒(在您的情况下为模糊或焦点),它将相应地暂停或恢复计时器。
timer.pause() //pause the timer
timer.resume() //resume the timer
P.S - 根据代码的逻辑使用此功能。您必须在代码中相应地进行计时器调用