afb81b8278
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128 lines
2.8 KiB
C++
128 lines
2.8 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 "base/platform/base_platform_info.h"
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#ifndef DESKTOP_APP_DISABLE_X11_INTEGRATION
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#include "base/platform/linux/base_linux_xcb_utilities.h"
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#endif // !DESKTOP_APP_DISABLE_X11_INTEGRATION
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#include <QtCore/QPointer>
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#include <QtWidgets/QApplication>
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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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int KeepingPaused/* = 0*/;
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auto Window = QPointer<QWidget>();
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bool Unpause(bool force = false) {
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if ((force && !KeepingPaused) || 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 ActivateWindow(not_null<QWidget*> widget) {
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const auto window = widget->window();
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window->raise();
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window->activateWindow();
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ActivateWindowDelayed(window);
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}
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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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#ifndef DESKTOP_APP_DISABLE_X11_INTEGRATION
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const auto focusAncestor = [&] {
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const auto focusWidget = QApplication::focusWidget();
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if (!focusWidget || !widget->window()) {
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return false;
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}
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return widget->window()->isAncestorOf(focusWidget);
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}();
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#endif // !DESKTOP_APP_DISABLE_X11_INTEGRATION
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crl::on_main(Window, [=] {
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const auto widget = base::take(Window);
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if (!widget) {
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return;
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}
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const auto window = widget->window();
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if (!window || window->isHidden()) {
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return;
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}
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window->raise();
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window->activateWindow();
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#ifndef DESKTOP_APP_DISABLE_X11_INTEGRATION
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if (::Platform::IsX11() && focusAncestor) {
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const base::Platform::XCB::Connection connection;
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if (connection && !xcb_connection_has_error(connection)) {
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free(
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xcb_request_check(
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connection,
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xcb_set_input_focus_checked(
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connection,
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XCB_INPUT_FOCUS_PARENT,
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window->winId(),
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XCB_CURRENT_TIME)));
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}
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}
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#endif // !DESKTOP_APP_DISABLE_X11_INTEGRATION
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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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void KeepDelayedActivationPaused(bool keep) {
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if (keep) {
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++KeepingPaused;
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} else if (KeepingPaused > 0) {
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if (!--KeepingPaused && Paused) {
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Unpause(true);
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}
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}
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}
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} // namespace Ui
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