lib_ui/ui/delayed_activation.cpp
2019-09-17 17:48:58 +03:00

44 lines
862 B
C++

// This file is part of Desktop App Toolkit,
// a set of libraries for developing nice desktop applications.
//
// For license and copyright information please follow this link:
// https://github.com/desktop-app/legal/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