Add support for fractional window sizes

focusWindow may have no platform window.

CMakeLists.txt

@@ -37,7 +37,7 @@ include(ECMGenerateExportHeader)
 find_package(Qt6 ${QT_MIN_VERSION} CONFIG REQUIRED COMPONENTS WaylandClient Qml)
 
 if (Qt6WaylandClient_VERSION VERSION_GREATER_EQUAL "6.10.0")
-    find_package(Qt6WaylandClientPrivate ${REQUIRED_QT_VERSION} REQUIRED NO_MODULE)
+    find_package(Qt6WaylandClientPrivate ${QT_MIN_VERSION} REQUIRED NO_MODULE)
 endif()
 
 find_package(WaylandScanner REQUIRED)

src/CMakeLists.txt

@@ -7,11 +7,8 @@ add_library(LayerShellQtInterface)
 
 qt6_extract_metatypes(LayerShellQtInterface)
 
-if (Qt6_VERSION VERSION_GREATER_EQUAL "6.8.0")
-    set(private_code_option  "PRIVATE_CODE")
-endif()
 qt6_generate_wayland_protocol_client_sources(LayerShellQtInterface
-    ${private_code_option}
+    PRIVATE_CODE
     FILES
         ${WaylandProtocols_DATADIR}/stable/xdg-shell/xdg-shell.xml
         ${WaylandProtocols_DATADIR}/staging/xdg-activation/xdg-activation-v1.xml

src/qwaylandlayersurface.cpp

@@ -133,6 +133,7 @@ void QWaylandLayerSurface::applyConfigure()
     window()->resizeFromApplyConfigure(m_pendingSize);
 }
 
+#if QT_VERSION < QT_VERSION_CHECK(6, 12, 0)
 void QWaylandLayerSurface::setDesiredSize(const QSize &size)
 {
     const bool horizontallyConstrained = m_interface->anchors().testFlags({Window::AnchorLeft, Window::AnchorRight});
@@ -147,6 +148,22 @@ void QWaylandLayerSurface::setDesiredSize(const QSize &size)
     }
     set_size(effectiveSize.width(), effectiveSize.height());
 }
+#else
+void QWaylandLayerSurface::setDesiredSize(const QSizeF &size)
+{
+    const bool horizontallyConstrained = m_interface->anchors().testFlags({Window::AnchorLeft, Window::AnchorRight});
+    const bool verticallyConstrained = m_interface->anchors().testFlags({Window::AnchorTop, Window::AnchorBottom});
+
+    QSize effectiveSize = size.toSize();
+    if (horizontallyConstrained) {
+        effectiveSize.setWidth(0);
+    }
+    if (verticallyConstrained) {
+        effectiveSize.setHeight(0);
+    }
+    set_size(effectiveSize.width(), effectiveSize.height());
+}
+#endif
 
 void QWaylandLayerSurface::setAnchor(uint anchor)
 {
@@ -181,7 +198,11 @@ void QWaylandLayerSurface::setLayer(uint32_t layer)
         set_layer(layer);
 }
 
+#if QT_VERSION < QT_VERSION_CHECK(6, 12, 0)
 void QWaylandLayerSurface::setWindowSize(const QSize &size)
+#else
+void QWaylandLayerSurface::setWindowSize(const QSizeF &size)
+#endif
 {
     if (m_interface->desiredSize().isNull()) {
         setDesiredSize(size);
@@ -204,7 +225,7 @@ bool QWaylandLayerSurface::requestActivate()
         return true;
     } else {
         const auto focusWindow = QGuiApplication::focusWindow();
-        const auto wlWindow = focusWindow ? static_cast<QtWaylandClient::QWaylandWindow *>(focusWindow->handle()) : window();
+        const auto wlWindow = focusWindow && focusWindow->handle() ? static_cast<QtWaylandClient::QWaylandWindow *>(focusWindow->handle()) : window();
         if (const auto seat = wlWindow->display()->lastInputDevice()) {
             const auto tokenProvider = activation->requestXdgActivationToken(wlWindow->display(), wlWindow->wlSurface(), seat->serial(), QString());
             connect(tokenProvider, &QWaylandXdgActivationTokenV1::done, this, [this](const QString &token) {

src/qwaylandlayersurface_p.h

@@ -34,7 +34,11 @@ public:
     }
     void attachPopup(QtWaylandClient::QWaylandShellSurface *popup) override;
 
+#if QT_VERSION < QT_VERSION_CHECK(6, 12, 0)
     void setDesiredSize(const QSize &size);
+#else
+    void setDesiredSize(const QSizeF &size);
+#endif
     void setAnchor(uint32_t anchor);
     void setExclusiveZone(int32_t zone);
     void setExclusiveEdge(uint32_t edge);
@@ -43,7 +47,11 @@ public:
     void setLayer(uint32_t layer);
 
     void applyConfigure() override;
+#if QT_VERSION < QT_VERSION_CHECK(6, 12, 0)
     void setWindowSize(const QSize &size) override;
+#else
+    void setWindowSize(const QSizeF &size) override;
+#endif
 
     bool requestActivate() override;
     bool requestActivateOnShow() override;