debug++

When we get a configure event defer applying it until all pending
callbacks are processsed. This ensures we only only process configure
events that match the last thing we requested.

.kde-ci.yml

@@ -7,6 +7,3 @@ Dependencies:
     'frameworks/extra-cmake-modules': '@latest-kf6'
     'third-party/wayland': '@latest'
     'third-party/wayland-protocols': '@latest'
-
-Options:
-  require-passing-tests-on: ['Linux', 'FreeBSD', 'Windows']

CMakeLists.txt

@@ -4,13 +4,13 @@
 cmake_minimum_required(VERSION 3.16)
 
 project(layershellqt)
-set(PROJECT_VERSION "6.1.5")
+set(PROJECT_VERSION "6.0.80")
 set(PROJECT_VERSION_MAJOR 6)
 
 set(CMAKE_C_STANDARD 99)
 
 set(QT_MIN_VERSION "6.6.0")
-set(KF6_MIN_VERSION "6.2.0")
+set(KF6_MIN_VERSION "6.0.0")
 set(KDE_COMPILERSETTINGS_LEVEL "5.82")
 
 set(CMAKE_CXX_STANDARD 20)
@@ -31,7 +31,7 @@ include(GenerateExportHeader)
 include(KDEClangFormat)
 include(ECMQtDeclareLoggingCategory)
 include(ECMQmlModule)
-include(KDEGitCommitHooks)
+
 
 find_package(Qt6 ${QT_MIN_VERSION} CONFIG REQUIRED COMPONENTS WaylandClient Qml)
 find_package(WaylandScanner REQUIRED)
@@ -53,8 +53,6 @@ ecm_setup_version(${PROJECT_VERSION} VARIABLE_PREFIX LAYERSHELLQT
 file(GLOB_RECURSE ALL_CLANG_FORMAT_SOURCE_FILES *.cpp *.h)
 kde_clang_format(${ALL_CLANG_FORMAT_SOURCE_FILES})
 
-kde_configure_git_pre_commit_hook(CHECKS CLANG_FORMAT)
-
 ecm_set_disabled_deprecation_versions(QT 6.5
     KF 5.240
 )

src/declarative/layershellqtplugin.cpp

@@ -4,47 +4,20 @@
  *   SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
  */
 
-#include "../interfaces/window.h"
 #include <QQmlExtensionPlugin>
+#include "../interfaces/window.h"
 #include <qqml.h>
 
 QML_DECLARE_TYPEINFO(LayerShellQt::Window, QML_HAS_ATTACHED_PROPERTIES)
 
-class ExtQMargins
-{
-    QMargins m_margins;
-    Q_GADGET
-    Q_PROPERTY(int left READ left WRITE setLeft FINAL)
-    Q_PROPERTY(int right READ right WRITE setRight FINAL)
-    Q_PROPERTY(int top READ top WRITE setTop FINAL)
-    Q_PROPERTY(int bottom READ bottom WRITE setBottom FINAL)
-    QML_FOREIGN(QMargins)
-    QML_EXTENDED(ExtQMargins)
-public:
-    ExtQMargins(const QMargins &margins);
-    int left() const { return m_margins.left(); }
-    void setLeft(int left) { m_margins.setLeft(left); }
-
-    int right() const { return m_margins.right(); }
-    void setRight(int right) { m_margins.setRight(right); }
-
-    int top() const { return m_margins.top(); }
-    void setTop(int top) { m_margins.setTop(top); }
-
-    int bottom() const { return m_margins.bottom(); }
-    void setBottom(int bottom) { m_margins.setBottom(bottom); }
-};
-
 class Plugin : public QQmlExtensionPlugin
 {
     Q_PLUGIN_METADATA(IID "org.kde.layershellqt")
     Q_OBJECT
 public:
-    void registerTypes(const char *uri) override
-    {
+    void registerTypes(const char *uri) override {
         Q_ASSERT(QLatin1String(uri) == QLatin1String("org.kde.layershell"));
         qmlRegisterType<LayerShellQt::Window>(uri, 1, 0, "Window");
-        qmlRegisterExtendedUncreatableType<QMargins, ExtQMargins>(uri, 1, 0, "ExtQMargins", QStringLiteral("Only created from C++"));
     }
 };
 

src/qwaylandlayershellintegration.cpp

@@ -32,4 +32,5 @@ QtWaylandClient::QWaylandShellSurface *QWaylandLayerShellIntegration::createShel
     return new QWaylandLayerSurface(this, window);
 }
 
+
 }

src/qwaylandlayershellintegration_p.h

@@ -18,19 +18,14 @@ class QWaylandXdgActivationV1;
 namespace LayerShellQt
 {
 
-class LAYERSHELLQT_EXPORT QWaylandLayerShellIntegration : public QtWaylandClient::QWaylandShellIntegrationTemplate<QWaylandLayerShellIntegration>,
-                                                          public QtWayland::zwlr_layer_shell_v1
+class LAYERSHELLQT_EXPORT QWaylandLayerShellIntegration : public QtWaylandClient::QWaylandShellIntegrationTemplate<QWaylandLayerShellIntegration>, public QtWayland::zwlr_layer_shell_v1
 {
 public:
     QWaylandLayerShellIntegration();
     ~QWaylandLayerShellIntegration() override;
 
-    QWaylandXdgActivationV1 *activation() const
-    {
-        return m_xdgActivation.data();
-    }
+    QWaylandXdgActivationV1 *activation() const { return m_xdgActivation.data(); }
     QtWaylandClient::QWaylandShellSurface *createShellSurface(QtWaylandClient::QWaylandWindow *window) override;
-
 private:
     QScopedPointer<QWaylandXdgActivationV1> m_xdgActivation;
 };

src/qwaylandlayersurface.cpp

@@ -67,10 +67,15 @@ QWaylandLayerSurface::QWaylandLayerSurface(QWaylandLayerShellIntegration *shell,
     });
 
     setDesiredSize(window->windowContentGeometry().size());
+    requestWaylandSync();
 }
 
 QWaylandLayerSurface::~QWaylandLayerSurface()
 {
+    for (auto syncCallback: m_waitForSyncCallbacks) {
+        wl_callback_destroy(syncCallback);
+    }
+    m_waitForSyncCallbacks.clear();
     destroy();
 }
 
@@ -83,9 +88,17 @@ void QWaylandLayerSurface::zwlr_layer_surface_v1_closed()
 
 void QWaylandLayerSurface::zwlr_layer_surface_v1_configure(uint32_t serial, uint32_t width, uint32_t height)
 {
+    qDebug() << "got configure";
     ack_configure(serial);
     m_pendingSize = QSize(width, height);
 
+    // because configure lacks a way to match it up with our resize requests
+    // we apply it only when our callback sync is complete
+    if (!m_waitForSyncCallbacks.isEmpty()) {
+        m_hasPendingConfigureToApply = true;
+        return;
+    }
+
     if (!m_configured) {
         m_configured = true;
         applyConfigure();
@@ -95,6 +108,8 @@ void QWaylandLayerSurface::zwlr_layer_surface_v1_configure(uint32_t serial, uint
         // are not painting to the window.
         window()->applyConfigureWhenPossible();
     }
+    qDebug() << "end got confiure";
+
 }
 
 void QWaylandLayerSurface::attachPopup(QtWaylandClient::QWaylandShellSurface *popup)
@@ -111,6 +126,7 @@ void QWaylandLayerSurface::attachPopup(QtWaylandClient::QWaylandShellSurface *po
 void QWaylandLayerSurface::applyConfigure()
 {
     m_configuring = true;
+    qDebug() << "resizing panel to " << m_pendingSize;
     window()->resizeFromApplyConfigure(m_pendingSize);
     m_configuring = false;
 }
@@ -127,6 +143,7 @@ void QWaylandLayerSurface::setDesiredSize(const QSize &size)
     if (verticallyConstrained) {
         effectiveSize.setHeight(0);
     }
+    qDebug() << "requesting size " << effectiveSize;
     set_size(effectiveSize.width(), effectiveSize.height());
 }
 
@@ -170,6 +187,7 @@ void QWaylandLayerSurface::setWindowGeometry(const QRect &geometry)
     }
 
     setDesiredSize(geometry.size());
+    requestWaylandSync();
 }
 
 bool QWaylandLayerSurface::requestActivate()
@@ -184,12 +202,14 @@ 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 ? static_cast<QtWaylandClient::QWaylandWindow*>(focusWindow->handle()) : window();
         if (const auto seat = wlWindow->display()->lastInputDevice()) {
-            const auto tokenProvider = activation->requestXdgActivationToken(wlWindow->display(), wlWindow->wlSurface(), 0, QString());
-            connect(tokenProvider, &QWaylandXdgActivationTokenV1::done, this, [this](const QString &token) {
-                m_shell->activation()->activate(token, window()->wlSurface());
-            });
+            const auto tokenProvider = activation->requestXdgActivationToken(
+                wlWindow->display(), wlWindow->wlSurface(), 0, QString());
+            connect(tokenProvider, &QWaylandXdgActivationTokenV1::done, this,
+                    [this](const QString &token) {
+                        m_shell->activation()->activate(token, window()->wlSurface());
+                    });
             connect(tokenProvider, &QWaylandXdgActivationTokenV1::done, tokenProvider, &QObject::deleteLater);
             return true;
         }
@@ -208,14 +228,55 @@ void QWaylandLayerSurface::requestXdgActivationToken(quint32 serial)
     if (!activation->isActive()) {
         return;
     }
-    auto tokenProvider = activation->requestXdgActivationToken(window()->display(), window()->wlSurface(), serial, QString());
+    auto tokenProvider = activation->requestXdgActivationToken(
+        window()->display(), window()->wlSurface(), serial, QString());
 
-    connect(tokenProvider, &QWaylandXdgActivationTokenV1::done, this, [this](const QString &token) {
-        Q_EMIT window()->xdgActivationTokenCreated(token);
-    });
+    connect(tokenProvider, &QWaylandXdgActivationTokenV1::done, this,
+            [this](const QString &token) {
+                Q_EMIT window()->xdgActivationTokenCreated(token);
+            });
     connect(tokenProvider, &QWaylandXdgActivationTokenV1::done, tokenProvider, &QObject::deleteLater);
 }
 
+const wl_callback_listener QWaylandLayerSurface::syncCallbackListener = {
+    .done = [](void *data, struct wl_callback *callback, uint32_t time){
+        Q_UNUSED(time);
+        wl_callback_destroy(callback);
+        QWaylandLayerSurface *layerSurface = static_cast<QWaylandLayerSurface *>(data);
+        layerSurface->m_waitForSyncCallbacks.removeOne(callback);
+        layerSurface->handleWaylandSyncDone();
+    }
+};
+
+void QWaylandLayerSurface::requestWaylandSync()
+{
+    auto syncCallback = wl_display_sync(m_window->display()->wl_display());
+    m_waitForSyncCallbacks.append(syncCallback);
+    wl_callback_add_listener(syncCallback, &syncCallbackListener, this);
+}
+
+void QWaylandLayerSurface::handleWaylandSyncDone()
+{
+    qDebug() << "handle sync done";
+    if (!window()->window()->isVisible() || !m_waitForSyncCallbacks.isEmpty()) {
+        return;
+    }
+
+    if (m_hasPendingConfigureToApply) {
+        m_hasPendingConfigureToApply = false;
+        if (!m_configured) {
+            m_configured = true;
+            applyConfigure();
+            sendExpose();
+        } else {
+            // Later configures are resizes, so we have to queue them up for a time when we
+            // are not painting to the window.
+            window()->applyConfigureWhenPossible();
+        }
+    }
+    qDebug() << "end handle sync done";
+}
+
 void QWaylandLayerSurface::sendExpose()
 {
 #if QT_VERSION < QT_VERSION_CHECK(6, 7, 0)
@@ -226,3 +287,4 @@ void QWaylandLayerSurface::sendExpose()
 }
 
 }
+

src/qwaylandlayersurface_p.h

@@ -30,7 +30,7 @@ public:
 
     bool isExposed() const override
     {
-        return m_configured;
+        return m_configured && m_waitForSyncCallbacks.isEmpty();
     }
     void attachPopup(QtWaylandClient::QWaylandShellSurface *popup) override;
 
@@ -50,6 +50,8 @@ public:
     void requestXdgActivationToken(quint32 serial) override;
 
 private:
+    void requestWaylandSync();
+    void handleWaylandSyncDone();
     void sendExpose();
     void zwlr_layer_surface_v1_configure(uint32_t serial, uint32_t width, uint32_t height) override;
     void zwlr_layer_surface_v1_closed() override;
@@ -62,8 +64,11 @@ private:
 
     bool m_configured = false;
     bool m_configuring = false;
-};
+    bool m_hasPendingConfigureToApply = false;
 
+    static const wl_callback_listener syncCallbackListener;
+    QList<struct wl_callback*> m_waitForSyncCallbacks;
+};
 }
 
 #endif

tests/quicktest.qml

@@ -39,7 +39,6 @@ Item
         LayerShell.Window.anchors: LayerShell.Window.AnchorLeft
         LayerShell.Window.layer: LayerShell.Window.LayerTop
         LayerShell.Window.exclusionZone: width
-        LayerShell.Window.margins.left: 100
 
         width: 100
         height: 100