Build with Qt6

.gitlab-ci.yml

@@ -4,3 +4,4 @@
 include:
   - https://invent.kde.org/sysadmin/ci-utilities/raw/master/gitlab-templates/linux.yml
   - https://invent.kde.org/sysadmin/ci-utilities/raw/master/gitlab-templates/freebsd.yml
+  - https://invent.kde.org/sysadmin/ci-utilities/raw/master/gitlab-templates/linux-qt6.yml

CMakeLists.txt

@@ -10,14 +10,12 @@ set(PROJECT_VERSION_MAJOR 5)
 set(CMAKE_C_STANDARD 99)
 
 set(QT_MIN_VERSION "5.15.0")
-set(KF5_MIN_VERSION "5.86")
+set(KF5_MIN_VERSION "5.91")
 set(KDE_COMPILERSETTINGS_LEVEL "5.82")
 
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
-find_package(Qt5 ${QT_MIN_VERSION} CONFIG REQUIRED COMPONENTS WaylandClient Qml)
-find_package(Qt5XkbCommonSupport REQUIRED PRIVATE)
 find_package(ECM ${KF5_MIN_VERSION} REQUIRED NO_MODULE)
 set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake ${ECM_MODULE_PATH})
 
@@ -32,8 +30,12 @@ include(GenerateExportHeader)
 include(KDEClangFormat)
 include(ECMQtDeclareLoggingCategory)
 
+find_package(Qt${QT_MAJOR_VERSION} ${QT_MIN_VERSION} CONFIG REQUIRED COMPONENTS WaylandClient Qml)
+if (QT_MAJOR_VERSION EQUAL "5")
+    find_package(Qt5XkbCommonSupport REQUIRED PRIVATE)
+    find_package(QtWaylandScanner)
+endif()
 find_package(WaylandScanner)
-find_package(QtWaylandScanner)
 find_package(Wayland 1.3 COMPONENTS Client Server)
 find_package(WaylandProtocols)
 find_package(PkgConfig REQUIRED)

LayerShellQtConfig.cmake.in

@@ -4,6 +4,6 @@
 @PACKAGE_INIT@
 
 include(CMakeFindDependencyMacro)
-find_dependency(Qt5Gui "@QT_MIN_VERSION@")
+find_dependency(Qt@QT_MAJOR_VERSION@Gui "@QT_MIN_VERSION@")
 
 include("${CMAKE_CURRENT_LIST_DIR}/LayerShellQtTargets.cmake")

src/CMakeLists.txt

@@ -3,8 +3,16 @@
 
 remove_definitions(-DQT_NO_SIGNALS_SLOTS_KEYWORDS)
 
-ecm_add_qtwayland_client_protocol(LAYER_SHELL_SOURCES PROTOCOL ${WaylandProtocols_DATADIR}/stable/xdg-shell/xdg-shell.xml BASENAME xdg-shell)
-ecm_add_qtwayland_client_protocol(LAYER_SHELL_SOURCES PROTOCOL wlr-layer-shell-unstable-v1.xml BASENAME wlr-layer-shell-unstable-v1)
+add_library(LayerShellQtInterface)
+if (QT_MAJOR_VERSION EQUAL "5")
+    ecm_add_qtwayland_client_protocol(LAYER_SHELL_SOURCES PROTOCOL ${WaylandProtocols_DATADIR}/stable/xdg-shell/xdg-shell.xml BASENAME xdg-shell)
+    ecm_add_qtwayland_client_protocol(LAYER_SHELL_SOURCES PROTOCOL wlr-layer-shell-unstable-v1.xml BASENAME wlr-layer-shell-unstable-v1)
+else()
+    qt6_generate_wayland_protocol_client_sources(LayerShellQtInterface FILES
+        ${WaylandProtocols_DATADIR}/stable/xdg-shell/xdg-shell.xml
+        ${CMAKE_CURRENT_SOURCE_DIR}/wlr-layer-shell-unstable-v1.xml
+    )
+endif()
 
 ecm_qt_declare_logging_category(LAYER_SHELL_SOURCES
     HEADER
@@ -15,8 +23,11 @@ ecm_qt_declare_logging_category(LAYER_SHELL_SOURCES
         layershellqt
 )
 
-add_library(LayerShellQtInterface SHARED qwaylandlayersurface.cpp interfaces/window.cpp interfaces/shell.cpp qwaylandlayershellintegration.cpp qwaylandlayershell.cpp ${LAYER_SHELL_SOURCES})
-target_link_libraries(LayerShellQtInterface PRIVATE Qt::Gui Qt::WaylandClientPrivate Qt::XkbCommonSupportPrivate Wayland::Client PkgConfig::XKBCOMMON)
+target_sources(LayerShellQtInterface PRIVATE qwaylandlayersurface.cpp interfaces/window.cpp interfaces/shell.cpp qwaylandlayershellintegration.cpp qwaylandlayershell.cpp ${LAYER_SHELL_SOURCES})
+target_link_libraries(LayerShellQtInterface PRIVATE Qt::Gui Qt::WaylandClientPrivate Wayland::Client PkgConfig::XKBCOMMON)
+if (TARGET Qt::XkbCommonSupportPrivate)
+    target_link_libraries(LayerShellQtInterface PRIVATE Qt::XkbCommonSupportPrivate)
+endif()
 target_include_directories(LayerShellQtInterface PUBLIC "$<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/LayerShellQt>"
                                               INTERFACE "$<INSTALL_INTERFACE:${KDE_INSTALL_INCLUDEDIR}/>"
 )
@@ -27,7 +38,10 @@ set_target_properties(LayerShellQtInterface PROPERTIES VERSION   ${LAYERSHELLQT_
 )
 
 add_library(layer-shell SHARED qwaylandlayershellintegrationplugin.cpp)
-target_link_libraries(layer-shell LayerShellQtInterface Qt::WaylandClient Qt::WaylandClientPrivate Qt::XkbCommonSupportPrivate Wayland::Client PkgConfig::XKBCOMMON)
+target_link_libraries(layer-shell LayerShellQtInterface Qt::WaylandClient Qt::WaylandClientPrivate Wayland::Client PkgConfig::XKBCOMMON)
+if (TARGET Qt::XkbCommonSupportPrivate)
+    target_link_libraries(layer-shell Qt::XkbCommonSupportPrivate)
+endif()
 
 ecm_generate_headers(LayerShellQt_HEADERS
     HEADER_NAMES
@@ -45,7 +59,7 @@ generate_export_header(LayerShellQtInterface
 )
 
 install(TARGETS layer-shell
-        LIBRARY DESTINATION ${QT_PLUGIN_INSTALL_DIR}/wayland-shell-integration)
+        LIBRARY DESTINATION ${KDE_INSTALL_QTPLUGINDIR}/wayland-shell-integration)
 
 install(TARGETS LayerShellQtInterface EXPORT LayerShellQtTargets ${KDE_INSTALL_TARGETS_DEFAULT_ARGS})
 

src/qwaylandlayershellintegration.cpp

@@ -24,7 +24,9 @@ QWaylandLayerShellIntegration::~QWaylandLayerShellIntegration()
 
 bool QWaylandLayerShellIntegration::initialize(QtWaylandClient::QWaylandDisplay *display)
 {
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
     QWaylandShellIntegration::initialize(display);
+#endif
     display->addRegistryListener(registryLayer, this);
     return m_layerShell != nullptr;
 }