fix : build error

add render enable interface.

cherry-pick form #516

debian/changelog

@@ -1,3 +1,15 @@
+treeland (0.5.21.2-test-multi-seat) unstable; urgency=medium
+
+  * feat: Add FPS display.
+
+ -- Lu YaNing <luyaning@uniontech.com>  Tue, 26 Aug 2025 20:52:43 +0800
+
+treeland (0.5.21.1) unstable; urgency=medium
+
+  * feat: Add multi-seat support.
+
+ -- Lu YaNing <luyaning@uniontech.com>  Fri, 25 Jul 2025 08:34:28 +0800
+
 treeland (0.5.21) unstable; urgency=medium
 
   * fix: inputted password and capsIndicator button are covered

src/CMakeLists.txt

@@ -135,6 +135,8 @@ qt_add_qml_module(libtreeland
         utils/propertymonitor.h
         utils/loginddbustypes.h
         utils/loginddbustypes.cpp
+        utils/fpsdisplaymanager.cpp
+        utils/fpsdisplaymanager.h
         wallpaper/wallpapercontroller.cpp
         wallpaper/wallpapercontroller.h
         wallpaper/wallpaperimage.cpp

src/core/rootsurfacecontainer.cpp

@@ -297,29 +297,56 @@ bool RootSurfaceContainer::filterSurfaceGeometryChanged(SurfaceWrapper *surface,
                                                         QRectF &newGeometry,
                                                         const QRectF &oldGeometry)
 {
-    if (surface != moveResizeState.surface)
+    if (surface == moveResizeState.surface) {
+        if (moveResizeState.setSurfacePositionForAnchorEdgets) {
+            Q_ASSERT(newGeometry.size() == oldGeometry.size());
+            return true;
+        }
+
+        if (moveResizeState.resizeEdges != 0) {
+            QRectF geometry = newGeometry;
+            if (moveResizeState.resizeEdges & Qt::RightEdge)
+                geometry.moveLeft(oldGeometry.left());
+            if (moveResizeState.resizeEdges & Qt::BottomEdge)
+                geometry.moveTop(oldGeometry.top());
+            if (moveResizeState.resizeEdges & Qt::LeftEdge)
+                geometry.moveRight(oldGeometry.right());
+            if (moveResizeState.resizeEdges & Qt::TopEdge)
+                geometry.moveBottom(oldGeometry.bottom());
+
+            if (geometry.topLeft() != newGeometry.topLeft()) {
+                newGeometry = geometry;
+                moveResizeState.setSurfacePositionForAnchorEdgets = true;
+                surface->setPosition(geometry.topLeft());
+                moveResizeState.setSurfacePositionForAnchorEdgets = false;
+            }
+        }
         return false;
-    if (moveResizeState.setSurfacePositionForAnchorEdgets) {
-        Q_ASSERT(newGeometry.size() == oldGeometry.size());
-        return true;
     }
 
-    if (moveResizeState.resizeEdges != 0) {
+    Qt::Edges seatEdges;
-        QRectF geometry = newGeometry;
+    QRectF seatStartGeometry;
-        if (moveResizeState.resizeEdges & Qt::RightEdge)
+    if (Helper::getSeatMoveResizeInfo(surface, seatEdges, seatStartGeometry)) {
-            geometry.moveLeft(oldGeometry.left());
+        if (Helper::isSettingSeatPosition()) {
-        if (moveResizeState.resizeEdges & Qt::BottomEdge)
+            return false;
-            geometry.moveTop(oldGeometry.top());
+        }
-        if (moveResizeState.resizeEdges & Qt::LeftEdge)
+        if (seatEdges != 0) {
-            geometry.moveRight(oldGeometry.right());
+            QRectF geometry = newGeometry;
-        if (moveResizeState.resizeEdges & Qt::TopEdge)
+            if (seatEdges & Qt::RightEdge)
-            geometry.moveBottom(oldGeometry.bottom());
+                geometry.moveLeft(oldGeometry.left());
+            if (seatEdges & Qt::BottomEdge)
+                geometry.moveTop(oldGeometry.top());
+            if (seatEdges & Qt::LeftEdge)
+                geometry.moveRight(oldGeometry.right());
+            if (seatEdges & Qt::TopEdge)
+                geometry.moveBottom(oldGeometry.bottom());
 
-        if (geometry.topLeft() != newGeometry.topLeft()) {
+            if (geometry.topLeft() != newGeometry.topLeft()) {
-            newGeometry = geometry;
+                newGeometry = geometry;
-            moveResizeState.setSurfacePositionForAnchorEdgets = true;
+                Helper::setSeatPositionFlag(true);
-            surface->setPosition(geometry.topLeft());
+                surface->setPosition(geometry.topLeft());
-            moveResizeState.setSurfacePositionForAnchorEdgets = false;
+                Helper::setSeatPositionFlag(false);
+            }
         }
     }
 

src/input/inputdevice.cpp

@@ -354,6 +354,16 @@ InputDevice *InputDevice::instance()
 
 bool InputDevice::initTouchPad(WInputDevice *device)
 {
+    if (!device) {
+        qWarning() << "Cannot initialize touchpad for null device";
+        return false;
+    }
+
+    if (!device->qtDevice()) {
+        qWarning() << "Cannot initialize touchpad: device has no qtDevice";
+        return false;
+    }
+
     if (device->handle()->is_libinput()
         && device->qtDevice()->type() == QInputDevice::DeviceType::TouchPad) {
         configTapEnabled(libinput_device_handle(device->handle()), LIBINPUT_CONFIG_TAP_ENABLED);

src/modules/foreign-toplevel/foreigntoplevelmanagerv1.cpp

@@ -121,7 +121,10 @@ void ForeignToplevelV1::addSurface(SurfaceWrapper *wrapper)
                     Helper::instance()->forceActivateSurface(wrapper);
                     return;
                 }
-
+                if (event->minimized && wrapper->isMinimized()) {
+                    Helper::instance()->forceActivateSurface(wrapper);
+                    return;
+                }
                 if (event->minimized)
                     wrapper->requestMinimize();
                 else

src/seat/helper.h

@@ -13,6 +13,7 @@
 #include <wqmlcreator.h>
 #include <wseat.h>
 #include <wxdgdecorationmanager.h>
+#include <wseatmanager.h>
 
 Q_MOC_INCLUDE(<wtoplevelsurface.h>)
 Q_MOC_INCLUDE(<wxdgsurface.h>)
@@ -50,6 +51,7 @@ class WSurfaceItem;
 class WForeignToplevel;
 class WOutputManagerV1;
 class WLayerSurface;
+class WSeatManager;
 WAYLIB_SERVER_END_NAMESPACE
 
 QW_BEGIN_NAMESPACE
@@ -88,6 +90,7 @@ class IMultitaskView;
 class LockScreenInterface;
 class ILockScreen;
 class UserModel;
+class FpsDisplayManager;
 struct wlr_idle_inhibitor_v1;
 struct wlr_output_power_v1_set_mode_event;
 
@@ -130,6 +133,10 @@ public:
 
     static Helper *instance();
 
+    static bool getSeatMoveResizeInfo(SurfaceWrapper *surface, Qt::Edges &edges, QRectF &startGeometry);
+    static bool isSettingSeatPosition();
+    static void setSeatPositionFlag(bool setting);
+
     QmlEngine *qmlEngine() const;
     WOutputRenderWindow *window() const;
     ShellHandler *shellHandler() const;
@@ -196,6 +203,25 @@ public:
     void showLockScreen();
 
     Output* getOutputAtCursor() const;
+
+    WSeatManager *seatManager() const;
+    void initMultiSeat();
+    void loadSeatConfig();
+    void saveSeatConfig();
+    bool validateSeatConfig(const QJsonObject &config) const;
+
+    void checkAndFixSeatDevices();
+    void assignDeviceToSeat(WInputDevice *device);
+
+    WSeat *getSeatForDevice(WInputDevice *device) const;
+    WSeat *getSeatForEvent(QInputEvent *event) const;
+    WSeat *findSeatForSurface(SurfaceWrapper *wrapper) const;
+    void setActivatedSurfaceForSeat(WSeat *seat, SurfaceWrapper *surface);
+    SurfaceWrapper *getActivatedSurfaceForSeat(WSeat *seat) const;
+    void toggleFpsDisplay();
+    void enableRender();
+    void disableRender();
+
 public Q_SLOTS:
     void activateSurface(SurfaceWrapper *wrapper, Qt::FocusReason reason = Qt::OtherFocusReason);
     void forceActivateSurface(SurfaceWrapper *wrapper,
@@ -219,6 +245,8 @@ Q_SIGNALS:
 private Q_SLOTS:
     void onShowDesktop();
     void deleteTaskSwitch();
+    void onPrepareForSleep(bool sleep);
+    void onSessionNew(const QString &sessionId, const QDBusObjectPath &objectPath);
 
 private:
     void onOutputAdded(WOutput *output);
@@ -242,11 +270,9 @@ private:
     void onSurfaceWrapperAboutToRemove(SurfaceWrapper *wrapper);
     void handleRequestDrag([[maybe_unused]] WSurface *surface);
     void handleLockScreen(LockScreenInterface *lockScreen);
-    void onSessionNew(const QString &sessionId, const QDBusObjectPath &sessionPath);
     void onSessionLock();
     void onSessionUnlock();
 
-private:
     void allowNonDrmOutputAutoChangeMode(WOutput *output);
 
     int indexOfOutput(WOutput *output) const;
@@ -254,19 +280,17 @@ private:
     void setOutputProxy(Output *output);
 
     SurfaceWrapper *keyboardFocusSurface() const;
-    void requestKeyboardFocusForSurface(SurfaceWrapper *newActivateSurface, Qt::FocusReason reason);
+    void requestKeyboardFocusForSurfaceForSeat(WSeat *seat, SurfaceWrapper *newActivate, Qt::FocusReason reason);
+    SurfaceWrapper *getKeyboardFocusSurfaceForSeat(WSeat *seat) const;
     SurfaceWrapper *activatedSurface() const;
     void setActivatedSurface(SurfaceWrapper *newActivateSurface);
 
     void setCursorPosition(const QPointF &position);
 
-    bool beforeDisposeEvent(WSeat *seat, QWindow *watched, QInputEvent *event) override;
+    bool beforeDisposeEvent(WSeat *seat, QWindow *window, QInputEvent *event) override;
-    bool afterHandleEvent([[maybe_unused]] WSeat *seat,
+    bool afterHandleEvent(WSeat *seat, WSurface *watched, QObject *shellObject,
-                          WSurface *watched,
+                         QObject *eventObject, QInputEvent *event) override;
-                          QObject *surfaceItem,
+    bool unacceptedEvent(WSeat *seat, QWindow *window, QInputEvent *event) override;
-                          QObject *,
-                          QInputEvent *event) override;
-    bool unacceptedEvent(WSeat *, QWindow *, QInputEvent *event) override;
 
     void handleLeftButtonStateChanged(const QInputEvent *event);
     void handleWhellValueChanged(const QInputEvent *event);
@@ -282,6 +306,26 @@ private:
     void restoreFromShowDesktop(SurfaceWrapper *activeSurface = nullptr);
     void updateIdleInhibitor();
 
+    void setupSeatsConfiguration();
+    void connectDeviceSignals();
+    void assignExistingDevices();
+
+    void beginMoveResizeForSeat(WSeat *seat, SurfaceWrapper *surface, Qt::Edges edges);
+    void endMoveResizeForSeat(WSeat *seat);
+    SurfaceWrapper *getMoveResizeSurfaceForSeat(WSeat *seat) const;
+    void doMoveResizeForSeat(WSeat *seat, const QPointF &delta);
+
+    WSeat *getLastInteractingSeat(SurfaceWrapper *surface) const;
+    void updateSurfaceSeatInteraction(SurfaceWrapper *surface, WSeat *seat);
+
+    void switchWorkspaceForSeat(WSeat *seat, int index);
+    void handleRequestDragForSeat(WSeat *seat, WSurface *surface);
+
+    bool getSingleMetaKeyPendingPressed(WSeat *seat) const;
+    void setSingleMetaKeyPendingPressed(WSeat *seat, bool pressed);
+
+    WSeat *m_currentEventSeat = nullptr;
+
     static Helper *m_instance;
 
     CurrentMode m_currentMode{ CurrentMode::Normal };
@@ -345,6 +389,22 @@ private:
 
     IMultitaskView *m_multitaskView{ nullptr };
     UserModel *m_userModel{ nullptr };
+    FpsDisplayManager *m_fpsDisplayManager{ nullptr };
 
     quint32 m_atomDeepinNoTitlebar;
+
+    WSeatManager *m_seatManager = nullptr;
+    QString m_seatConfigPath;
+
+    QMap<WSeat*, SurfaceWrapper*> m_seatActivatedSurfaces;
+    struct SeatMoveResizeState {
+        SurfaceWrapper *surface = nullptr;
+        Qt::Edges edges;
+        QRectF startGeometry;
+        QPointF initialPosition;
+    };
+    QMap<WSeat*, SeatMoveResizeState> m_seatMoveResizeStates;
+    QMap<WSeat*, QPointF> m_seatLastPressedPositions;
+    QMap<WSeat*, bool> m_seatMetaKeyStates;
+    QMap<WSeat*, SurfaceWrapper*> m_seatKeyboardFocusSurfaces;
 };

src/surface/surfacewrapper.cpp

@@ -890,6 +890,10 @@ void SurfaceWrapper::doSetSurfaceState(State newSurfaceState)
     m_surfaceState.notify();
     updateTitleBar();
     updateVisible();
+
+    if (surfaceItem() && surfaceItem()->eventItem()) {
+        surfaceItem()->eventItem()->forceActiveFocus();
+    }
 }
 
 void SurfaceWrapper::onAnimationReady()

src/utils/fpsdisplaymanager.cpp

@@ -0,0 +1,444 @@
+// Copyright (C) 2025 UnionTech Software Technology Co., Ltd.
+// SPDX-License-Identifier: Apache-2.0 OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#include "fpsdisplaymanager.h"
+#include <QQuickWindow>
+#include <QQuickItem>
+#include <QLoggingCategory>
+#include <QPainter>
+#include <QQuickPaintedItem>
+#include <QScreen>
+#include <QFontDatabase>
+
+Q_LOGGING_CATEGORY(qLcFpsDisplay, "treeland.fpsdisplay")
+
+FpsDisplayManager::FpsDisplayManager(QObject *parent)
+    : QObject(parent)
+    , m_updateTimer(this)
+    , m_vsyncTimer(this)
+{
+    m_timer.start();
+
+    m_updateTimer.setInterval(UPDATE_INTERVAL_MS);
+    m_updateTimer.setSingleShot(false);
+    connect(&m_updateTimer, &QTimer::timeout, this, &FpsDisplayManager::updateFps);
+
+    detectDisplayRefreshRate();
+
+    double preciseInterval = 1000.0 / m_displayRefreshRate;
+    int vsyncInterval = qRound(preciseInterval);
+    m_preciseVSyncInterval = preciseInterval;
+
+    // Optimize timer intervals for common refresh rates
+    if (m_displayRefreshRate == 60) {
+        vsyncInterval = 17; // 17ms for QTimer (closest to 16.67ms)
+        m_preciseVSyncInterval = 16.666667; // Exact 60Hz interval (1000/60)
+    } else if (m_displayRefreshRate == 90) {
+        vsyncInterval = 11; // 11ms for QTimer (closest to 11.11ms)
+        m_preciseVSyncInterval = 11.111111; // Exact 90Hz interval (1000/90)
+    } else if (m_displayRefreshRate == 120) {
+        vsyncInterval = 8; // 8ms for QTimer (closest to 8.33ms)
+        m_preciseVSyncInterval = 8.333333; // Exact 120Hz interval (1000/120)
+    } else if (m_displayRefreshRate == 144) {
+        vsyncInterval = 7; // 7ms for QTimer (closest to 6.94ms)
+        m_preciseVSyncInterval = 6.944444; // Exact 144Hz interval (1000/144)
+    }
+
+    m_vsyncTimer.setInterval(vsyncInterval);
+    m_vsyncTimer.setSingleShot(false);
+    connect(&m_vsyncTimer, &QTimer::timeout, this, &FpsDisplayManager::onVSyncTimer);
+}
+
+FpsDisplayManager::~FpsDisplayManager()
+{
+    destroyDisplayItem();
+}
+
+void FpsDisplayManager::setTargetWindow(QQuickWindow *window)
+{
+    if (m_targetWindow == window)
+        return;
+
+    destroyDisplayItem();
+    m_targetWindow = window;
+
+    if (m_targetWindow) {
+        detectDisplayRefreshRate();
+        double preciseInterval = 1000.0 / m_displayRefreshRate;
+        int vsyncInterval = qRound(preciseInterval);
+        m_preciseVSyncInterval = preciseInterval;
+
+        // Optimize timer intervals for common refresh rates
+        if (m_displayRefreshRate == 60) {
+            vsyncInterval = 17; // 17ms for QTimer (closest to 16.67ms)
+            m_preciseVSyncInterval = 16.666667; // Exact 60Hz interval (1000/60)
+        } else if (m_displayRefreshRate == 90) {
+            vsyncInterval = 11; // 11ms for QTimer (closest to 11.11ms)
+            m_preciseVSyncInterval = 11.111111; // Exact 90Hz interval (1000/90)
+        } else if (m_displayRefreshRate == 120) {
+            vsyncInterval = 8; // 8ms for QTimer (closest to 8.33ms)
+            m_preciseVSyncInterval = 8.333333; // Exact 120Hz interval (1000/120)
+        } else if (m_displayRefreshRate == 144) {
+            vsyncInterval = 7; // 7ms for QTimer (closest to 6.94ms)
+            m_preciseVSyncInterval = 6.944444; // Exact 144Hz interval (1000/144)
+        }
+
+        m_vsyncTimer.setInterval(vsyncInterval);
+    }
+
+    if (m_visible && m_targetWindow) {
+        createDisplayItem();
+    }
+}
+
+void FpsDisplayManager::show()
+{
+    if (m_visible && m_displayItem)
+        return;
+
+    m_visible = true;
+
+    if (m_targetWindow && !m_displayItem) {
+        createDisplayItem();
+        m_updateTimer.start();
+        m_vsyncTimer.start();
+        reset();
+    }
+}
+
+void FpsDisplayManager::hide()
+{
+    if (!m_visible)
+        return;
+
+    m_visible = false;
+    m_updateTimer.stop();
+    m_vsyncTimer.stop();
+    destroyDisplayItem();
+}
+
+void FpsDisplayManager::toggle()
+{
+    if (m_visible) {
+        hide();
+    } else {
+        show();
+    }
+}
+
+void FpsDisplayManager::onVSyncTimer()
+{
+    if (!m_visible)
+        return;
+
+    qint64 currentTime = m_timer.elapsed();
+
+    if (m_lastVSyncTime_precise > 0) {
+        qint64 actualInterval = currentTime - m_lastVSyncTime_precise;
+        double expectedInterval = m_preciseVSyncInterval;
+
+        if (actualInterval > expectedInterval * 1.5 || actualInterval < expectedInterval * 0.5) { // 50% tolerance for timer precision
+            m_lastVSyncTime_precise = currentTime;
+            return;
+        }
+    }
+
+    m_vSyncTimes.enqueue(currentTime);
+    m_lastVSyncTime_precise = currentTime;
+
+    while (m_vSyncTimes.size() > MAX_SAMPLES) { // Keep last 120 samples (2 seconds at 60Hz)
+        m_vSyncTimes.dequeue();
+    }
+}
+
+void FpsDisplayManager::reset()
+{
+    m_currentFps = m_displayRefreshRate;
+    m_averageFps = m_displayRefreshRate;
+    m_maximumFps = m_displayRefreshRate;
+    m_lastUpdateTime = m_timer.elapsed();
+    m_vSyncTimes.clear();
+    m_lastVSyncTime_precise = 0;
+
+    if (m_displayItem) {
+        updateFpsText();
+    }
+}
+
+void FpsDisplayManager::updateFps()
+{
+    if (!m_visible || m_vSyncTimes.isEmpty())
+        return;
+
+    qint64 currentTime = m_timer.elapsed();
+    qint64 timeDiff = currentTime - m_lastUpdateTime;
+
+    if (timeDiff < UPDATE_INTERVAL_MS) // Update UI every 500ms for responsiveness
+        return;
+
+    qreal currentFps = 0.0;
+    qreal averageFps = 0.0;
+
+    if (m_vSyncTimes.size() >= 2) {
+        qint64 totalTimeSpan = m_vSyncTimes.last() - m_vSyncTimes.first();
+        if (totalTimeSpan > 0) {
+            averageFps = ((m_vSyncTimes.size() - 1) * 1000.0) / totalTimeSpan;
+        }
+
+        if (m_vSyncTimes.size() >= 3) { // Need minimum 3 samples for instantaneous FPS
+            qint64 recentTimeSpan = m_vSyncTimes.last() - m_vSyncTimes[m_vSyncTimes.size() - 3];
+            if (recentTimeSpan > 0) {
+                currentFps = (2 * 1000.0) / recentTimeSpan;
+            }
+        } else {
+            currentFps = averageFps;
+        }
+    } else if (m_vSyncTimes.size() == 1) {
+        currentFps = averageFps = m_displayRefreshRate;
+    }
+
+    if (currentFps > 0 || averageFps > 0) {
+        const qreal smoothingFactor = 0.3; // 30% new value, 70% previous for smooth transitions
+        if (m_currentFps == 0.0) {
+            m_currentFps = currentFps;
+            m_averageFps = averageFps;
+        } else {
+            m_currentFps = m_currentFps * (1.0 - smoothingFactor) + currentFps * smoothingFactor;
+            m_averageFps = m_averageFps * (1.0 - smoothingFactor) + averageFps * smoothingFactor;
+        }
+
+        double maxFps = m_displayRefreshRate + 1.0; // Allow 1 FPS tolerance above refresh rate
+        m_currentFps = qBound(1.0, m_currentFps, maxFps);
+        m_averageFps = qBound(1.0, m_averageFps, maxFps);
+
+        if (m_currentFps > m_maximumFps) {
+            m_maximumFps = m_currentFps;
+        }
+    }
+
+    m_lastUpdateTime = currentTime;
+    updateFpsText();
+}
+
+void FpsDisplayManager::detectDisplayRefreshRate()
+{
+    m_displayRefreshRate = 60; // Default 60Hz fallback for most displays
+    if (m_targetWindow) {
+        if (auto screen = m_targetWindow->screen()) {
+            qreal refreshRate = screen->refreshRate();
+            if (refreshRate > 0) {
+                m_displayRefreshRate = qRound(refreshRate);
+                return;
+            }
+        }
+    }
+
+    // Environment variable override for testing/debugging
+    QString envRefreshRate = qgetenv("TREELAND_REFRESH_RATE");
+    if (!envRefreshRate.isEmpty()) {
+        bool ok;
+        int rate = envRefreshRate.toInt(&ok);
+        if (ok && rate > 0 && rate <= 240) { // Support up to 240Hz displays
+            m_displayRefreshRate = rate;
+        }
+    }
+}
+
+class FpsDisplayItem : public QQuickPaintedItem
+{
+    Q_OBJECT
+public:
+    explicit FpsDisplayItem(QQuickItem *parent = nullptr)
+        : QQuickPaintedItem(parent)
+    {
+        setFlag(QQuickItem::ItemAcceptsInputMethod, false);
+        setFlag(QQuickItem::ItemAcceptsDrops, false);
+        setFlag(QQuickItem::ItemIsFocusScope, false);
+        setFlag(QQuickItem::ItemHasContents, true);
+        setAcceptedMouseButtons(Qt::NoButton);
+        setAcceptHoverEvents(false);
+        setAcceptTouchEvents(false);
+        setActiveFocusOnTab(false);
+        setFocus(false);
+        setEnabled(false);
+        setVisible(false);
+        setWidth(130);
+        setHeight(45);
+    }
+
+    void paint(QPainter *painter) override
+    {
+        painter->setRenderHint(QPainter::Antialiasing);
+        painter->setRenderHint(QPainter::TextAntialiasing);
+
+        QFont font;
+        qreal scaleFactor = 1.0;
+        if (width() > 150) {
+            scaleFactor = width() / 130.0;
+        }
+        int fontSize = qRound(14 * scaleFactor);
+
+        font.setPixelSize(fontSize);
+        font.setWeight(QFont::Normal);
+        font.setHintingPreference(QFont::PreferFullHinting);
+        painter->setFont(font);
+
+        qreal lineHeight = height() / 2.2;
+        qreal lineSpacing = height() / 2.0;
+
+        painter->setPen(QColor(255, 255, 255, 150));
+        painter->drawText(QRectF(1, 1, width(), lineHeight), Qt::AlignLeft | Qt::AlignVCenter, m_fpsText);
+        painter->drawText(QRectF(1, lineSpacing + 1, width(), lineHeight), Qt::AlignLeft | Qt::AlignVCenter, m_avgFpsText);
+
+        painter->setPen(QColor(0, 0, 0));
+        painter->drawText(QRectF(0, 0, width(), lineHeight), Qt::AlignLeft | Qt::AlignVCenter, m_fpsText);
+        painter->drawText(QRectF(0, lineSpacing, width(), lineHeight), Qt::AlignLeft | Qt::AlignVCenter, m_avgFpsText);
+    }
+
+    void setFpsText(const QString &text, const QColor &color)
+    {
+        if (m_fpsText != text || m_fpsColor != color) {
+            m_fpsText = text;
+            m_fpsColor = color;
+            update();
+        }
+    }
+
+    void setAvgFpsText(const QString &text)
+    {
+        if (m_avgFpsText != text) {
+            m_avgFpsText = text;
+            update();
+        }
+    }
+
+protected:
+    // Override all event handlers to ensure complete input isolation
+    bool event(QEvent *event) override
+    {
+        // Only handle paint-related events, reject all input and focus events
+        switch (event->type()) {
+        case QEvent::Paint:
+        case QEvent::UpdateRequest:
+        case QEvent::Polish:
+        case QEvent::PolishRequest:
+            return QQuickPaintedItem::event(event);
+        case QEvent::FocusIn:
+        case QEvent::FocusOut:
+        case QEvent::FocusAboutToChange:
+        case QEvent::KeyPress:
+        case QEvent::KeyRelease:
+        case QEvent::MouseButtonPress:
+        case QEvent::MouseButtonRelease:
+        case QEvent::MouseMove:
+        case QEvent::Enter:
+        case QEvent::Leave:
+        case QEvent::HoverEnter:
+        case QEvent::HoverLeave:
+        case QEvent::HoverMove:
+        case QEvent::TouchBegin:
+        case QEvent::TouchUpdate:
+        case QEvent::TouchEnd:
+        case QEvent::InputMethod:
+        case QEvent::InputMethodQuery:
+            event->ignore();
+            return false;
+        default:
+            if (event->type() >= QEvent::User) {
+                event->ignore();
+                return false;
+            }
+            return QQuickPaintedItem::event(event);
+        }
+    }
+
+    void mousePressEvent(QMouseEvent *event) override { event->ignore(); }
+    void mouseReleaseEvent(QMouseEvent *event) override { event->ignore(); }
+    void mouseMoveEvent(QMouseEvent *event) override { event->ignore(); }
+    void keyPressEvent(QKeyEvent *event) override { event->ignore(); }
+    void keyReleaseEvent(QKeyEvent *event) override { event->ignore(); }
+    void focusInEvent(QFocusEvent *event) override { event->ignore(); }
+    void focusOutEvent(QFocusEvent *event) override { event->ignore(); }
+    void hoverEnterEvent(QHoverEvent *event) override { event->ignore(); }
+    void hoverLeaveEvent(QHoverEvent *event) override { event->ignore(); }
+    void hoverMoveEvent(QHoverEvent *event) override { event->ignore(); }
+    void touchEvent(QTouchEvent *event) override { event->ignore(); }
+
+private:
+    QString m_fpsText = "Current FPS: 0";
+    QString m_avgFpsText = "Maximum FPS: 0";
+    QColor m_fpsColor = QColor(255, 255, 255);
+};
+
+void FpsDisplayManager::createDisplayItem()
+{
+    if (!m_targetWindow || m_displayItem)
+        return;
+
+    auto displayItem = new FpsDisplayItem(nullptr);
+    displayItem->setParent(m_targetWindow);
+    displayItem->setParentItem(m_targetWindow->contentItem());
+
+    qreal windowWidth = m_targetWindow->contentItem()->width();
+
+    qreal scaleFactor = 1.0;
+    if (windowWidth > 2560) {
+        scaleFactor = 1.5; // 4K+ displays need 50% larger UI
+    } else if (windowWidth > 1920) {
+        scaleFactor = 1.2; // 2K displays need 20% larger UI
+    }
+
+    qreal displayWidth = 130 * scaleFactor;
+    qreal displayHeight = 45 * scaleFactor;
+    qreal margin = 20 * scaleFactor;
+    qreal topOffset = 40 * scaleFactor;
+
+    displayItem->setWidth(displayWidth);
+    displayItem->setHeight(displayHeight);
+    displayItem->setX(windowWidth - displayWidth - margin);
+    displayItem->setY(topOffset);
+    displayItem->setZ(99999); // Ensure FPS display is always on top
+
+    m_displayItem = displayItem;
+    updateFpsText();
+
+    QMetaObject::invokeMethod(this, [this]() {
+        if (m_displayItem) {
+            m_displayItem->setVisible(true);
+            m_displayItem->setEnabled(false);
+            m_displayItem->setFocus(false);
+            m_displayItem->setActiveFocusOnTab(false);
+
+            if (m_targetWindow && m_targetWindow->contentItem()) {
+                auto contentItem = m_targetWindow->contentItem();
+                if (!contentItem->hasActiveFocus() && !contentItem->hasFocus()) {
+                    contentItem->setFocus(true);
+                }
+            }
+        }
+    }, Qt::QueuedConnection);
+}
+
+void FpsDisplayManager::destroyDisplayItem()
+{
+    if (m_displayItem) {
+        m_displayItem->deleteLater();
+        m_displayItem = nullptr;
+    }
+}
+
+void FpsDisplayManager::updateFpsText()
+{
+    auto displayItem = qobject_cast<FpsDisplayItem*>(m_displayItem);
+    if (!displayItem)
+        return;
+
+    QString currentFpsText = QString("Current FPS: %1").arg(qRound(m_currentFps));
+    QString maximumFpsText = QString("Maximum FPS: %1").arg(qRound(m_maximumFps));
+    QColor fpsColor = QColor(255, 255, 255);
+
+    displayItem->setFpsText(currentFpsText, fpsColor);
+    displayItem->setAvgFpsText(maximumFpsText);
+}
+
+#include "fpsdisplaymanager.moc"

src/utils/fpsdisplaymanager.h

@@ -0,0 +1,62 @@
+// Copyright (C) 2025 UnionTech Software Technology Co., Ltd.
+// SPDX-License-Identifier: Apache-2.0 OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#pragma once
+
+#include <QObject>
+#include <QTimer>
+#include <QElapsedTimer>
+#include <QQueue>
+#include <QPointer>
+
+class QQuickItem;
+class QQuickWindow;
+
+class FpsDisplayManager : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit FpsDisplayManager(QObject *parent = nullptr);
+    ~FpsDisplayManager();
+
+    void setTargetWindow(QQuickWindow *window);
+    void show();
+    void hide();
+    void toggle();
+    void reset();
+
+    bool isVisible() const { return m_visible; }
+
+private slots:
+    void updateFps();
+    void onVSyncTimer();
+
+private:
+    void createDisplayItem();
+    void destroyDisplayItem();
+    void updateFpsText();
+
+    QPointer<QQuickWindow> m_targetWindow;
+    QPointer<QQuickItem> m_displayItem;
+
+    QElapsedTimer m_timer;
+    QTimer m_updateTimer;
+    QTimer m_vsyncTimer;
+    QQueue<qint64> m_vSyncTimes;
+
+    qreal m_currentFps = 0.0;
+    qreal m_averageFps = 0.0;
+    qreal m_maximumFps = 0.0;
+    qint64 m_lastUpdateTime = 0;
+    qint64 m_lastVSyncTime_precise = 0;
+
+    int m_displayRefreshRate = 60;
+    double m_preciseVSyncInterval = 16.67;
+    bool m_visible = false;
+
+    void detectDisplayRefreshRate();
+
+    static constexpr int MAX_SAMPLES = 120;           // 2 seconds of samples at 60Hz
+    static constexpr int UPDATE_INTERVAL_MS = 500;    // UI update frequency in milliseconds
+};

src/workspace/workspace.cpp

@@ -376,7 +376,10 @@ void Workspace::removeActivedSurface(SurfaceWrapper *surface)
             wpModle->removeActivedSurface(surface);
         m_showOnAllWorkspaceModel->removeActivedSurface(surface);
     } else {
-        auto wpModle = modelFromId(surface->workspaceId());
+        int workspaceId = surface->workspaceId();
+        if (workspaceId == -1)
+            return;
+        auto wpModle = modelFromId(workspaceId);
         Q_ASSERT(wpModle);
         wpModle->removeActivedSurface(surface);
     }