152 lines
2.7 KiB
C++
152 lines
2.7 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#include "base/timer.h"
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#include <QtCore/QTimerEvent>
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namespace base {
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namespace {
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QObject *TimersAdjuster() {
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static QObject adjuster;
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return &adjuster;
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}
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} // namespace
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Timer::Timer(
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not_null<QThread*> thread,
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Fn<void()> callback)
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: Timer(std::move(callback)) {
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moveToThread(thread);
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}
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Timer::Timer(Fn<void()> callback)
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: QObject(nullptr)
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, _callback(std::move(callback))
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, _type(Qt::PreciseTimer)
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, _adjusted(false) {
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setRepeat(Repeat::Interval);
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connect(
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TimersAdjuster(),
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&QObject::destroyed,
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this,
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[this] { adjust(); },
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Qt::QueuedConnection);
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}
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void Timer::start(TimeMs timeout, Qt::TimerType type, Repeat repeat) {
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cancel();
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_type = type;
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setRepeat(repeat);
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_adjusted = false;
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setTimeout(timeout);
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_timerId = startTimer(_timeout, _type);
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if (_timerId) {
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_next = crl::time() + _timeout;
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} else {
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_next = 0;
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}
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}
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void Timer::cancel() {
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if (isActive()) {
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killTimer(base::take(_timerId));
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}
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}
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TimeMs Timer::remainingTime() const {
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if (!isActive()) {
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return -1;
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}
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auto now = crl::time();
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return (_next > now) ? (_next - now) : TimeMs(0);
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}
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void Timer::Adjust() {
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QObject emitter;
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connect(
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&emitter,
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&QObject::destroyed,
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TimersAdjuster(),
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&QObject::destroyed);
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}
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void Timer::adjust() {
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auto remaining = remainingTime();
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if (remaining >= 0) {
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cancel();
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_timerId = startTimer(remaining, _type);
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_adjusted = true;
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}
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}
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void Timer::setTimeout(TimeMs timeout) {
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Expects(timeout >= 0 && timeout <= std::numeric_limits<int>::max());
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_timeout = static_cast<unsigned int>(timeout);
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}
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int Timer::timeout() const {
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return _timeout;
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}
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void Timer::timerEvent(QTimerEvent *e) {
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if (repeat() == Repeat::Interval) {
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if (_adjusted) {
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start(_timeout, _type, repeat());
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} else {
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_next = crl::time() + _timeout;
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}
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} else {
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cancel();
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}
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if (_callback) {
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_callback();
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}
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}
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int DelayedCallTimer::call(
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TimeMs timeout,
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FnMut<void()> callback,
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Qt::TimerType type) {
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Expects(timeout >= 0);
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if (!callback) {
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return 0;
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}
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auto timerId = startTimer(static_cast<int>(timeout), type);
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if (timerId) {
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_callbacks.emplace(timerId, std::move(callback));
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}
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return timerId;
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}
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void DelayedCallTimer::cancel(int callId) {
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if (callId) {
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killTimer(callId);
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_callbacks.remove(callId);
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}
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}
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void DelayedCallTimer::timerEvent(QTimerEvent *e) {
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auto timerId = e->timerId();
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killTimer(timerId);
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auto it = _callbacks.find(timerId);
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if (it != _callbacks.end()) {
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auto callback = std::move(it->second);
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_callbacks.erase(it);
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callback();
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}
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}
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} // namespace base
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