lib_ui/ui/platform/linux/ui_linux_wayland_integration.cpp
2023-05-30 18:15:19 +04:00

153 lines
3.6 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/linux/base_linux_wayland_utilities.h"
#include "base/platform/base_platform_info.h"
#include "base/qt_signal_producer.h"
#include "qwayland-wayland.h"
#include "qwayland-xdg-shell.h"
#include <QtGui/QGuiApplication>
#include <QtGui/QWindow>
#include <qpa/qplatformnativeinterface.h>
#include <qpa/qplatformwindow_p.h>
using namespace QNativeInterface;
using namespace QNativeInterface::Private;
using namespace base::Platform::Wayland;
namespace Ui {
namespace Platform {
struct WaylandIntegration::Private : public AutoDestroyer<QtWayland::wl_registry> {
bool xdgDecorationSupported = false;
uint32_t xdgDecorationName = 0;
rpl::lifetime lifetime;
protected:
void registry_global(
uint32_t name,
const QString &interface,
uint32_t version) override {
if (interface == qstr("zxdg_decoration_manager_v1")) {
xdgDecorationSupported = true;
xdgDecorationName = name;
}
}
void registry_global_remove(uint32_t name) override {
if (name == xdgDecorationName) {
xdgDecorationSupported = false;
xdgDecorationName = 0;
}
}
};
WaylandIntegration::WaylandIntegration()
: _private(std::make_unique<Private>()) {
const auto native = qApp->nativeInterface<QWaylandApplication>();
if (!native) {
return;
}
const auto display = native->display();
if (!display) {
return;
}
_private->init(wl_display_get_registry(display));
wl_display_roundtrip(display);
}
WaylandIntegration::~WaylandIntegration() = default;
WaylandIntegration *WaylandIntegration::Instance() {
if (!::Platform::IsWayland()) return nullptr;
static std::optional<WaylandIntegration> instance(std::in_place);
base::qt_signal_producer(
QGuiApplication::platformNativeInterface(),
&QObject::destroyed
) | rpl::start_with_next([&] {
instance = std::nullopt;
}, instance->_private->lifetime);
if (!instance) return nullptr;
return &*instance;
}
bool WaylandIntegration::xdgDecorationSupported() {
return _private->xdgDecorationSupported;
}
bool WaylandIntegration::windowExtentsSupported() {
QWindow window;
window.create();
return window.nativeInterface<QWaylandWindow>();
}
void WaylandIntegration::setWindowExtents(
not_null<QWidget*> widget,
const QMargins &extents) {
const auto window = widget->windowHandle();
if (!window) {
return;
}
const auto native = window->nativeInterface<QWaylandWindow>();
if (!native) {
return;
}
native->setCustomMargins(extents);
}
void WaylandIntegration::unsetWindowExtents(not_null<QWidget*> widget) {
const auto window = widget->windowHandle();
if (!window) {
return;
}
const auto native = window->nativeInterface<QWaylandWindow>();
if (!native) {
return;
}
native->setCustomMargins(QMargins());
}
void WaylandIntegration::showWindowMenu(
not_null<QWidget*> widget,
const QPoint &point) {
const auto window = widget->windowHandle();
if (!window) {
return;
}
const auto native = qApp->nativeInterface<QWaylandApplication>();
const auto nativeWindow = window->nativeInterface<QWaylandWindow>();
if (!native || !nativeWindow) {
return;
}
const auto toplevel = nativeWindow->surfaceRole<xdg_toplevel>();
const auto seat = native->lastInputSeat();
if (!toplevel || !seat) {
return;
}
xdg_toplevel_show_window_menu(
toplevel,
seat,
native->lastInputSerial(),
point.x(),
point.y());
}
} // namespace Platform
} // namespace Ui