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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "ozone_platform_qt.h"
#if defined(USE_OZONE)
#include "base/no_destructor.h"
#include "ui/base/buildflags.h"
#include "ui/base/ime/input_method.h"
#include "ui/display/types/native_display_delegate.h"
#include "ui/events/ozone/layout/keyboard_layout_engine_manager.h"
#include "ui/events/ozone/layout/stub/stub_keyboard_layout_engine.h"
#include "ui/ozone/common/bitmap_cursor_factory.h"
#include "ui/ozone/common/stub_client_native_pixmap_factory.h"
#include "ui/ozone/common/stub_overlay_manager.h"
#include "ui/ozone/public/gpu_platform_support_host.h"
#include "ui/ozone/public/input_controller.h"
#include "ui/ozone/public/ozone_platform.h"
#include "ui/ozone/public/platform_screen.h"
#include "ui/ozone/public/system_input_injector.h"
#include "ui/platform_window/platform_window_delegate.h"
#include "ui/platform_window/platform_window_init_properties.h"
#include "surface_factory_qt.h"
#include "platform_window_qt.h"
#if BUILDFLAG(USE_XKBCOMMON)
#include "base/logging.h"
#include "ui/events/ozone/layout/xkb/xkb_evdev_codes.h"
#include "ui/events/ozone/layout/xkb/xkb_keyboard_layout_engine.h"
#include <X11/XKBlib.h>
#include <X11/extensions/XKBrules.h>
#include <filesystem>
extern void *GetQtXDisplay();
#endif // BUILDFLAG(USE_XKBCOMMON)
namespace ui {
namespace {
class OzonePlatformQt : public OzonePlatform {
public:
OzonePlatformQt();
~OzonePlatformQt() override;
ui::SurfaceFactoryOzone* GetSurfaceFactoryOzone() override;
ui::CursorFactory* GetCursorFactory() override;
GpuPlatformSupportHost* GetGpuPlatformSupportHost() override;
std::unique_ptr<PlatformWindow> CreatePlatformWindow(PlatformWindowDelegate* delegate, PlatformWindowInitProperties properties) override;
std::unique_ptr<display::NativeDisplayDelegate> CreateNativeDisplayDelegate() override;
ui::InputController* GetInputController() override;
std::unique_ptr<ui::SystemInputInjector> CreateSystemInputInjector() override;
ui::OverlayManagerOzone* GetOverlayManager() override;
std::unique_ptr<InputMethod> CreateInputMethod(ImeKeyEventDispatcher *ime_key_event_dispatcher, gfx::AcceleratedWidget widget) override;
std::unique_ptr<ui::PlatformScreen> CreateScreen() override { return nullptr; }
const PlatformProperties &GetPlatformProperties() override;
private:
bool InitializeUI(const ui::OzonePlatform::InitParams &) override;
void InitializeGPU(const ui::OzonePlatform::InitParams &) override;
void InitScreen(ui::PlatformScreen *) override {}
std::unique_ptr<QtWebEngineCore::SurfaceFactoryQt> surface_factory_ozone_;
std::unique_ptr<CursorFactory> cursor_factory_;
std::unique_ptr<GpuPlatformSupportHost> gpu_platform_support_host_;
std::unique_ptr<InputController> input_controller_;
std::unique_ptr<OverlayManagerOzone> overlay_manager_;
#if BUILDFLAG(USE_XKBCOMMON)
XkbEvdevCodes m_xkbEvdevCodeConverter;
#endif
std::unique_ptr<KeyboardLayoutEngine> m_keyboardLayoutEngine;
};
OzonePlatformQt::OzonePlatformQt() {}
OzonePlatformQt::~OzonePlatformQt() {}
const ui::OzonePlatform::PlatformProperties &OzonePlatformQt::GetPlatformProperties()
{
static base::NoDestructor<ui::OzonePlatform::PlatformProperties> properties;
static bool initialized = false;
if (!initialized) {
properties->fetch_buffer_formats_for_gmb_on_gpu = true;
initialized = true;
}
return *properties;
}
ui::SurfaceFactoryOzone* OzonePlatformQt::GetSurfaceFactoryOzone()
{
return surface_factory_ozone_.get();
}
ui::CursorFactory* OzonePlatformQt::GetCursorFactory()
{
return cursor_factory_.get();
}
GpuPlatformSupportHost* OzonePlatformQt::GetGpuPlatformSupportHost()
{
return gpu_platform_support_host_.get();
}
std::unique_ptr<PlatformWindow> OzonePlatformQt::CreatePlatformWindow(PlatformWindowDelegate* delegate, PlatformWindowInitProperties properties)
{
return base::WrapUnique(new PlatformWindowQt(delegate, properties.bounds));
}
ui::InputController* OzonePlatformQt::GetInputController()
{
return input_controller_.get();
}
std::unique_ptr<ui::SystemInputInjector> OzonePlatformQt::CreateSystemInputInjector()
{
return nullptr; // no input injection support.
}
ui::OverlayManagerOzone* OzonePlatformQt::GetOverlayManager()
{
return overlay_manager_.get();
}
std::unique_ptr<display::NativeDisplayDelegate> OzonePlatformQt::CreateNativeDisplayDelegate()
{
NOTREACHED();
return nullptr;
}
#if BUILDFLAG(USE_XKBCOMMON)
static std::string getCurrentKeyboardLayout()
{
Display *dpy = static_cast<Display *>(GetQtXDisplay());
if (dpy == nullptr)
return std::string();
int d;
if (!XkbQueryExtension(dpy, &d, &d, &d, &d, &d)) {
// no Xkb extension
return std::string();
}
XkbStateRec state;
if (XkbGetState(dpy, XkbUseCoreKbd, &state) != 0)
return std::string();
XkbRF_VarDefsRec vdr {}; // zero initialize it
struct Cleanup {
XkbRF_VarDefsRec &vdr;
Cleanup(XkbRF_VarDefsRec &vdr) : vdr(vdr) { }
~Cleanup() {
free (vdr.model);
free (vdr.layout);
free (vdr.variant);
free (vdr.options);
}
} cleanup(vdr);
if (XkbRF_GetNamesProp(dpy, nullptr, &vdr) == 0)
return std::string();
if (!vdr.layout)
return std::string();
if (!vdr.variant)
return std::string(vdr.layout);
std::string layoutWithVariant = vdr.layout;
layoutWithVariant = layoutWithVariant.append("-");
layoutWithVariant = layoutWithVariant.append(vdr.variant);
return layoutWithVariant;
}
#endif // BUILDFLAG(USE_XKBCOMMON)
bool OzonePlatformQt::InitializeUI(const ui::OzonePlatform::InitParams &)
{
#if BUILDFLAG(USE_XKBCOMMON)
std::string xkb_path("/usr/share/X11/xkb");
std::string layout = getCurrentKeyboardLayout();
if (layout.empty() || !std::filesystem::exists(xkb_path) || std::filesystem::is_empty(xkb_path)) {
LOG(WARNING) << "Failed to load keymap file, falling back to StubKeyboardLayoutEngine";
m_keyboardLayoutEngine = std::make_unique<StubKeyboardLayoutEngine>();
} else {
m_keyboardLayoutEngine = std::make_unique<XkbKeyboardLayoutEngine>(m_xkbEvdevCodeConverter);
m_keyboardLayoutEngine->SetCurrentLayoutByName(layout);
}
#else
m_keyboardLayoutEngine = std::make_unique<StubKeyboardLayoutEngine>();
#endif // BUILDFLAG(USE_XKBCOMMON)
KeyboardLayoutEngineManager::SetKeyboardLayoutEngine(m_keyboardLayoutEngine.get());
overlay_manager_.reset(new StubOverlayManager());
input_controller_ = CreateStubInputController();
cursor_factory_.reset(new BitmapCursorFactory());
gpu_platform_support_host_.reset(ui::CreateStubGpuPlatformSupportHost());
return true;
}
void OzonePlatformQt::InitializeGPU(const ui::OzonePlatform::InitParams &)
{
surface_factory_ozone_.reset(new QtWebEngineCore::SurfaceFactoryQt());
}
std::unique_ptr<InputMethod> OzonePlatformQt::CreateInputMethod(ImeKeyEventDispatcher *, gfx::AcceleratedWidget)
{
NOTREACHED();
return nullptr;
}
} // namespace
OzonePlatform* CreateOzonePlatformQt() { return new OzonePlatformQt; }
gfx::ClientNativePixmapFactory* CreateClientNativePixmapFactoryQt()
{
return CreateStubClientNativePixmapFactory();
}
} // namespace ui
#endif
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