60 lines
1.3 KiB
C++
60 lines
1.3 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 "core/single_timer.h"
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#include "application.h"
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SingleTimer::SingleTimer(QObject *parent) : QTimer(parent) {
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QTimer::setSingleShot(true);
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Sandbox::connect(SIGNAL(adjustSingleTimers()), this, SLOT(adjust()));
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}
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void SingleTimer::setTimeoutHandler(base::lambda<void()> handler) {
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if (_handler && !handler) {
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disconnect(this, SIGNAL(timeout()), this, SLOT(onTimeout()));
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} else if (handler && !_handler) {
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connect(this, SIGNAL(timeout()), this, SLOT(onTimeout()));
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}
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_handler = std::move(handler);
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}
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void SingleTimer::adjust() {
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auto n = getms(true);
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if (isActive()) {
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if (n >= _finishing) {
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start(0);
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} else {
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start(_finishing - n);
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}
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}
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}
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void SingleTimer::onTimeout() {
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if (_handler) {
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_handler();
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}
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}
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void SingleTimer::start(int msec) {
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_finishing = getms(true) + (msec < 0 ? 0 : msec);
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QTimer::start(msec);
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}
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void SingleTimer::startIfNotActive(int msec) {
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if (isActive()) {
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int remains = remainingTime();
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if (remains > msec) {
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start(msec);
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} else if (!remains) {
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start(1);
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}
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} else {
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start(msec);
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}
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}
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