Method activate

Telegram/SourceFiles/core/application.cpp:594–616

}

void Application::activate() {
	for (const auto &window : _windowStack) {
		if (window == _lastActiveWindow) {
			break;
		}
		const auto widget = window->widget();
		const auto wasHidden = !widget->isVisible();
		const auto state = widget->windowState();
		if (state & Qt::WindowMinimized) {
			widget->setWindowState(state & ~Qt::WindowMinimized);
		}
		widget->setVisible(true);
		widget->activateWindow();
		if (wasHidden) {
			if (const auto session = window->sessionController()) {
				session->content()->windowShown();
			}
		}
	}
	if (_lastActiveWindow) {
		_lastActiveWindow->widget()->showFromTray();
	}
}

auto Application::prepareEmojiSourceImages()
-> std::shared_ptr<Ui::Emoji::UniversalImages> {