78 lines
1.5 KiB
C++
78 lines
1.5 KiB
C++
// This file is part of Desktop App Toolkit,
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// a set of libraries for developing nice desktop applications.
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//
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// For license and copyright information please follow this link:
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// https://github.com/desktop-app/legal/blob/master/LEGAL
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//
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#include "ui/delayed_activation.h"
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#include "ui/ui_utility.h"
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#include "base/call_delayed.h"
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#include "base/invoke_queued.h"
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#include <QtCore/QPointer>
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#include <QtCore/QCoreApplication>
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namespace Ui {
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namespace {
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constexpr auto kPreventTimeout = crl::time(100);
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bool Paused/* = false*/;
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bool Attempted/* = false*/;
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auto Window = QPointer<QWidget>();
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bool Unpause(bool force = false) {
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if (force || Attempted) {
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Attempted = false;
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Paused = false;
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return true;
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}
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return false;
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}
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} // namespace
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void ActivateWindowDelayed(not_null<QWidget*> widget) {
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if (Paused) {
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Attempted = true;
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return;
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} else if (std::exchange(Window, widget.get())) {
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return;
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}
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crl::on_main(Window, [=] {
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if (const auto widget = base::take(Window)) {
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if (const auto window = widget->window()) {
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if (!window->isHidden()) {
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window->raise();
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window->activateWindow();
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}
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}
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}
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});
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}
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void PreventDelayedActivation() {
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Window = nullptr;
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Paused = true;
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PostponeCall([] {
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if (Unpause()) {
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return;
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}
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InvokeQueued(qApp, [] {
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if (Unpause()) {
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return;
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}
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crl::on_main([] {
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if (Unpause()) {
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return;
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}
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base::call_delayed(kPreventTimeout, [] {
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Unpause(true);
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});
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});
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});
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});
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}
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} // namespace Ui
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