wayland: implement wl_fixes

CMakeLists.txt

@@ -207,6 +207,11 @@ if (Wayland_VERSION VERSION_GREATER_EQUAL 1.23)
 else()
     set(HAVE_WL_DISPLAY_SET_DEFAULT_MAX_BUFFER_SIZE 0)
 endif()
+if (Wayland_VERSION VERSION_GREATER_EQUAL 1.23.90)
+    set(HAVE_WL_FIXES 1)
+else()
+    set(HAVE_WL_FIXES 0)
+endif()
 
 find_package(WaylandProtocols 1.38)
 set_package_properties(WaylandProtocols PROPERTIES

src/config-kwin.h.cmake

@@ -31,5 +31,6 @@ constexpr QLatin1String BREEZE_KDECORATION_PLUGIN_ID("${BREEZE_KDECORATION_PLUGI
 #cmakedefine01 HAVE_GLX
 #cmakedefine01 HAVE_DL_LIBRARY
 #cmakedefine01 HAVE_WL_DISPLAY_SET_DEFAULT_MAX_BUFFER_SIZE
+#cmakedefine01 HAVE_WL_FIXES
 
 constexpr QLatin1String XWAYLAND_SESSION_SCRIPTS("${XWAYLAND_SESSION_SCRIPTS}");

src/wayland/CMakeLists.txt

@@ -339,6 +339,7 @@ target_sources(kwin PRIVATE
     drmlease_v1.cpp
     externalbrightness_v1.cpp
     filtered_display.cpp
+    fixes.cpp
     fractionalscale_v1.cpp
     frog_colormanagement_v1.cpp
     idle.cpp

src/wayland/fixes.cpp

@@ -0,0 +1,56 @@
+/*
+    SPDX-FileCopyrightText: 2024 Joaquim Monteiro <joaquim.monteiro@protonmail.com>
+
+    SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
+*/
+
+#include "fixes.h"
+
+#include "config-kwin.h"
+#if HAVE_WL_FIXES
+
+#include "display.h"
+#include "qwayland-server-wayland.h"
+
+namespace KWin
+{
+static constexpr int s_version = 1;
+
+class FixesInterfacePrivate : public QtWaylandServer::wl_fixes
+{
+public:
+    FixesInterfacePrivate(Display *display);
+
+protected:
+    void fixes_destroy(Resource *resource) override;
+    void fixes_destroy_registry(Resource *resource, struct ::wl_resource *registry) override;
+};
+
+FixesInterfacePrivate::FixesInterfacePrivate(Display *display)
+    : QtWaylandServer::wl_fixes(*display, s_version)
+{
+}
+
+void FixesInterfacePrivate::fixes_destroy(Resource *resource)
+{
+    wl_resource_destroy(resource->handle);
+}
+
+void FixesInterfacePrivate::fixes_destroy_registry(Resource *resource, struct ::wl_resource *registry)
+{
+    wl_resource_destroy(registry);
+}
+
+FixesInterface::FixesInterface(Display *display, QObject *parent)
+    : QObject(parent)
+    , d{std::make_unique<FixesInterfacePrivate>(display)}
+{
+}
+
+FixesInterface::~FixesInterface()
+{
+}
+
+} // namespace KWin
+
+#endif // HAVE_WL_FIXES

src/wayland/fixes.h

@@ -0,0 +1,36 @@
+/*
+    SPDX-FileCopyrightText: 2024 Joaquim Monteiro <joaquim.monteiro@protonmail.com>
+
+    SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
+*/
+
+#pragma once
+
+#include "config-kwin.h"
+#if HAVE_WL_FIXES
+
+#include "kwin_export.h"
+
+#include <QObject>
+
+namespace KWin
+{
+
+class Display;
+class FixesInterfacePrivate;
+
+class KWIN_EXPORT FixesInterface : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit FixesInterface(Display *display, QObject *parent = nullptr);
+    ~FixesInterface() override;
+
+private:
+    std::unique_ptr<FixesInterfacePrivate> d;
+};
+
+} // namespace KWin
+
+#endif // HAVE_WL_FIXES

src/wayland_server.cpp

@@ -38,6 +38,7 @@
 #include "wayland/drmlease_v1.h"
 #include "wayland/externalbrightness_v1.h"
 #include "wayland/filtered_display.h"
+#include "wayland/fixes.h"
 #include "wayland/fractionalscale_v1.h"
 #include "wayland/frog_colormanagement_v1.h"
 #include "wayland/idle.h"
@@ -506,6 +507,9 @@ bool WaylandServer::init()
 
     m_externalBrightness = new ExternalBrightnessV1(m_display, m_display);
     m_alphaModifierManager = new AlphaModifierManagerV1(m_display, m_display);
+#if HAVE_WL_FIXES
+    new FixesInterface(m_display, m_display);
+#endif
     return true;
 }