tdesktop/Telegram/SourceFiles/ui/delayed_activation.cpp
2019-10-01 23:59:46 +03:00

45 lines
863 B
C++

/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#include "ui/delayed_activation.h"
#include "ui/ui_utility.h"
#include <QtCore/QPointer>
namespace Ui {
namespace {
auto Paused = false;
auto Window = QPointer<QWidget>();
} // namespace
void ActivateWindowDelayed(not_null<QWidget*> widget) {
if (Paused) {
return;
} else if (std::exchange(Window, widget.get())) {
return;
}
crl::on_main(Window, [=] {
if (const auto widget = base::take(Window)) {
if (!widget->isHidden()) {
widget->activateWindow();
}
}
});
}
void PreventDelayedActivation() {
Window = nullptr;
Paused = true;
PostponeCall([] {
Paused = false;
});
}
} // namespace Ui