lib_ui/ui/platform/linux/ui_linux_wayland_integration.cpp

153 lines
4 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#include "ui/platform/linux/ui_linux_wayland_integration.h"
#include "base/platform/base_platform_info.h"
#include "waylandshells/xdg_shell.h"
#include "qwayland-xdg-shell.h"
#include <QtGui/QGuiApplication>
#include <QtGui/QWindow>
#include <qpa/qplatformnativeinterface.h>
#include <private/qguiapplication_p.h>
#include <private/qhighdpiscaling_p.h>
// private QtWaylandClient headers are using keywords :(
#ifdef QT_NO_KEYWORDS
#define signals Q_SIGNALS
#define slots Q_SLOTS
#endif // QT_NO_KEYWORDS
#include <private/qwaylandintegration_p.h>
#include <private/qwaylanddisplay_p.h>
#include <private/qwaylandwindow_p.h>
#include <private/qwaylandinputdevice_p.h>
#include <connection_thread.h>
#include <registry.h>
Q_DECLARE_METATYPE(QMargins);
using QtWaylandClient::QWaylandIntegration;
using QtWaylandClient::QWaylandWindow;
using namespace KWayland::Client;
namespace Ui {
namespace Platform {
struct WaylandIntegration::Private {
std::unique_ptr<ConnectionThread> connection;
Registry registry;
QEventLoop interfacesLoop;
bool interfacesAnnounced = false;
};
WaylandIntegration::WaylandIntegration()
: _private(std::make_unique<Private>()) {
_private->connection = std::unique_ptr<ConnectionThread>{
ConnectionThread::fromApplication(),
};
_private->registry.create(_private->connection.get());
_private->registry.setup();
QObject::connect(
_private->connection.get(),
&ConnectionThread::connectionDied,
&_private->registry,
&Registry::destroy);
QObject::connect(
&_private->registry,
&Registry::interfacesAnnounced,
[=] {
_private->interfacesAnnounced = true;
if (_private->interfacesLoop.isRunning()) {
_private->interfacesLoop.quit();
}
});
}
WaylandIntegration::~WaylandIntegration() = default;
WaylandIntegration *WaylandIntegration::Instance() {
if (!::Platform::IsWayland()) return nullptr;
static WaylandIntegration instance;
return &instance;
}
void WaylandIntegration::waitForInterfaceAnnounce() {
Expects(!_private->interfacesLoop.isRunning());
if (!_private->interfacesAnnounced) {
_private->interfacesLoop.exec();
}
}
bool WaylandIntegration::xdgDecorationSupported() {
return _private->registry.hasInterface(
Registry::Interface::XdgDecorationUnstableV1);
}
bool WaylandIntegration::windowExtentsSupported() {
// initialize shell integration before querying
if (const auto integration = static_cast<QWaylandIntegration*>(
QGuiApplicationPrivate::platformIntegration())) {
integration->shellIntegration();
}
return WaylandShells::XdgShell();
}
void WaylandIntegration::setWindowExtents(
QWindow *window,
const QMargins &extents) {
window->setProperty(
"_desktopApp_waylandCustomMargins",
QVariant::fromValue<QMargins>(extents));
}
void WaylandIntegration::unsetWindowExtents(QWindow *window) {
window->setProperty(
"_desktopApp_waylandCustomMargins",
QVariant());
}
bool WaylandIntegration::showWindowMenu(QWindow *window) {
const auto native = QGuiApplication::platformNativeInterface();
if (!native) {
return false;
}
const auto toplevel = reinterpret_cast<xdg_toplevel*>(
native->nativeResourceForWindow(QByteArray("xdg_toplevel"), window));
const auto seat = reinterpret_cast<wl_seat*>(
native->nativeResourceForIntegration(QByteArray("wl_seat")));
const auto serial = [&]() -> std::optional<uint32_t> {
const auto waylandWindow = static_cast<QWaylandWindow*>(
window->handle());
if (!waylandWindow) {
return std::nullopt;
}
return waylandWindow->display()->defaultInputDevice()->serial();
}();
if (!toplevel || !seat || !serial) {
return false;
}
const auto pos = QHighDpi::toNativePixels(
window->mapFromGlobal(QCursor::pos()),
window);
xdg_toplevel_show_window_menu(toplevel, seat, *serial, pos.x(), pos.y());
return true;
}
} // namespace Platform
} // namespace Ui