305 lines
7.6 KiB
C++
305 lines
7.6 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/platform/linux/ui_utility_linux.h"
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#include "ui/ui_log.h"
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#include "base/platform/base_platform_info.h"
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#include "base/platform/linux/base_xcb_utilities_linux.h"
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#include "ui/platform/linux/ui_linux_wayland_integration.h"
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#include "base/const_string.h"
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#include "base/qt_adapters.h"
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#include "base/flat_set.h"
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#include <QtCore/QPoint>
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#include <QtGui/QScreen>
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#include <QtGui/QWindow>
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#include <QtWidgets/QApplication>
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#include <qpa/qplatformnativeinterface.h>
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#ifndef DESKTOP_APP_DISABLE_DBUS_INTEGRATION
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#include <QtDBus/QDBusConnection>
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#include <QtDBus/QDBusMessage>
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#include <QtDBus/QDBusReply>
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#include <QtDBus/QDBusVariant>
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#endif // !DESKTOP_APP_DISABLE_DBUS_INTEGRATION
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Q_DECLARE_METATYPE(QMargins);
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namespace Ui {
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namespace Platform {
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namespace {
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constexpr auto kXCBFrameExtentsAtomName = "_GTK_FRAME_EXTENTS"_cs;
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constexpr auto kXDGDesktopPortalService = "org.freedesktop.portal.Desktop"_cs;
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constexpr auto kXDGDesktopPortalObjectPath = "/org/freedesktop/portal/desktop"_cs;
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constexpr auto kSettingsPortalInterface = "org.freedesktop.portal.Settings"_cs;
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bool SetXCBFrameExtents(QWindow *window, const QMargins &extents) {
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const auto connection = base::Platform::XCB::GetConnectionFromQt();
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if (!connection) {
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return false;
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}
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const auto frameExtentsAtom = base::Platform::XCB::GetAtom(
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connection,
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kXCBFrameExtentsAtomName.utf16());
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if (!frameExtentsAtom.has_value()) {
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return false;
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}
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const auto extentsVector = std::vector<uint>{
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uint(extents.left()),
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uint(extents.right()),
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uint(extents.top()),
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uint(extents.bottom()),
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};
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xcb_change_property(
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connection,
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XCB_PROP_MODE_REPLACE,
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window->winId(),
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*frameExtentsAtom,
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XCB_ATOM_CARDINAL,
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32,
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extentsVector.size(),
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extentsVector.data());
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return true;
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}
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bool UnsetXCBFrameExtents(QWindow *window) {
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const auto connection = base::Platform::XCB::GetConnectionFromQt();
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if (!connection) {
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return false;
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}
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const auto frameExtentsAtom = base::Platform::XCB::GetAtom(
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connection,
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kXCBFrameExtentsAtomName.utf16());
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if (!frameExtentsAtom.has_value()) {
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return false;
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}
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xcb_delete_property(
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connection,
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window->winId(),
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*frameExtentsAtom);
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return true;
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}
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bool ShowXCBWindowMenu(QWindow *window) {
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const auto connection = base::Platform::XCB::GetConnectionFromQt();
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if (!connection) {
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return false;
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}
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const auto root = base::Platform::XCB::GetRootWindowFromQt();
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if (!root.has_value()) {
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return false;
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}
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const auto showWindowMenuAtom = base::Platform::XCB::GetAtom(
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connection,
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"_GTK_SHOW_WINDOW_MENU");
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if (!showWindowMenuAtom.has_value()) {
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return false;
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}
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const auto globalPos = QCursor::pos();
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xcb_client_message_event_t xev;
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xev.response_type = XCB_CLIENT_MESSAGE;
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xev.type = *showWindowMenuAtom;
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xev.sequence = 0;
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xev.window = window->winId();
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xev.format = 32;
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xev.data.data32[0] = 0;
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xev.data.data32[1] = globalPos.x();
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xev.data.data32[2] = globalPos.y();
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xev.data.data32[3] = 0;
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xev.data.data32[4] = 0;
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xcb_ungrab_pointer(connection, XCB_CURRENT_TIME);
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xcb_send_event(
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connection,
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false,
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*root,
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XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT
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| XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY,
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reinterpret_cast<const char*>(&xev));
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return true;
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}
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TitleControls::Control GtkKeywordToTitleControl(const QString &keyword) {
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if (keyword == qstr("minimize")) {
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return TitleControls::Control::Minimize;
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} else if (keyword == qstr("maximize")) {
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return TitleControls::Control::Maximize;
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} else if (keyword == qstr("close")) {
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return TitleControls::Control::Close;
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}
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return TitleControls::Control::Unknown;
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}
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#ifndef DESKTOP_APP_DISABLE_DBUS_INTEGRATION
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std::optional<TitleControls::Layout> PortalTitleControlsLayout() {
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auto message = QDBusMessage::createMethodCall(
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kXDGDesktopPortalService.utf16(),
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kXDGDesktopPortalObjectPath.utf16(),
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kSettingsPortalInterface.utf16(),
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"Read");
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message.setArguments({
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"org.gnome.desktop.wm.preferences",
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"button-layout"
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});
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const QDBusReply<QVariant> reply = QDBusConnection::sessionBus().call(
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message);
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if (!reply.isValid() || !reply.value().canConvert<QDBusVariant>()) {
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return std::nullopt;
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}
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const auto valueVariant = qvariant_cast<QDBusVariant>(
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reply.value()).variant();
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if (!valueVariant.canConvert<QString>()) {
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return std::nullopt;
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}
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const auto valueBySides = valueVariant.toString().split(':');
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std::vector<TitleControls::Control> controlsLeft;
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ranges::transform(
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valueBySides[0].split(','),
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ranges::back_inserter(controlsLeft),
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GtkKeywordToTitleControl);
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std::vector<TitleControls::Control> controlsRight;
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if (valueBySides.size() > 1) {
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ranges::transform(
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valueBySides[1].split(','),
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ranges::back_inserter(controlsRight),
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GtkKeywordToTitleControl);
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}
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return TitleControls::Layout{
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.left = controlsLeft,
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.right = controlsRight
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};
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}
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#endif // !DESKTOP_APP_DISABLE_DBUS_INTEGRATION
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} // namespace
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bool IsApplicationActive() {
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return QApplication::activeWindow() != nullptr;
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}
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bool TranslucentWindowsSupported(QPoint globalPosition) {
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if (::Platform::IsWayland()) {
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return true;
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}
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if (const auto native = QGuiApplication::platformNativeInterface()) {
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if (const auto desktop = QApplication::desktop()) {
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if (const auto screen = base::QScreenNearestTo(globalPosition)) {
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if (native->nativeResourceForScreen(QByteArray("compositingEnabled"), screen)) {
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return true;
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}
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const auto index = QGuiApplication::screens().indexOf(screen);
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static auto WarnedAbout = base::flat_set<int>();
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if (!WarnedAbout.contains(index)) {
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WarnedAbout.emplace(index);
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UI_LOG(("WARNING: Compositing is disabled for screen index %1 (for position %2,%3)").arg(index).arg(globalPosition.x()).arg(globalPosition.y()));
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}
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} else {
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UI_LOG(("WARNING: Could not get screen for position %1,%2").arg(globalPosition.x()).arg(globalPosition.y()));
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}
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}
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}
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return false;
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}
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void IgnoreAllActivation(not_null<QWidget*> widget) {
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}
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bool WindowExtentsSupported() {
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#ifdef DESKTOP_APP_QT_PATCHED
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if (::Platform::IsWayland()) {
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return true;
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}
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#endif // DESKTOP_APP_QT_PATCHED
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namespace XCB = base::Platform::XCB;
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if (!::Platform::IsWayland()
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&& XCB::IsSupportedByWM(kXCBFrameExtentsAtomName.utf16())) {
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return true;
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}
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return false;
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}
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bool SetWindowExtents(QWindow *window, const QMargins &extents) {
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if (::Platform::IsWayland()) {
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#ifdef DESKTOP_APP_QT_PATCHED
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window->setProperty("WaylandCustomMargins", QVariant::fromValue<QMargins>(extents));
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return true;
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#else // DESKTOP_APP_QT_PATCHED
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return false;
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#endif // !DESKTOP_APP_QT_PATCHED
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} else {
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return SetXCBFrameExtents(window, extents);
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}
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}
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bool UnsetWindowExtents(QWindow *window) {
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if (::Platform::IsWayland()) {
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#ifdef DESKTOP_APP_QT_PATCHED
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window->setProperty("WaylandCustomMargins", QVariant());
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return true;
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#else // DESKTOP_APP_QT_PATCHED
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return false;
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#endif // !DESKTOP_APP_QT_PATCHED
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} else {
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return UnsetXCBFrameExtents(window);
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}
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}
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bool ShowWindowMenu(QWindow *window) {
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if (const auto integration = WaylandIntegration::Instance()) {
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return integration->showWindowMenu(window);
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} else {
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return ShowXCBWindowMenu(window);
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}
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}
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TitleControls::Layout TitleControlsLayout() {
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#ifndef DESKTOP_APP_DISABLE_DBUS_INTEGRATION
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if (const auto portalLayout = PortalTitleControlsLayout()) {
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return *portalLayout;
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}
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#endif // !DESKTOP_APP_DISABLE_DBUS_INTEGRATION
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return TitleControls::Layout{
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.right = {
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TitleControls::Control::Minimize,
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TitleControls::Control::Maximize,
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TitleControls::Control::Close,
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}
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};
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}
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} // namespace Platform
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} // namespace Ui
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