feat: add smooth animation for prelaunch splash transition

[wineee]

Added smooth geometry animation when transitioning from prelaunch splash to main surface content. Previously, the size change was abrupt when the prelaunch splash was destroyed. Now, when there's a significant size difference between the current implicit size and the target surface size, a smooth animation is applied to provide better visual experience.

The implementation includes:

1. Added size comparison to detect when animation is needed
2. Created geometry animation using the animation engine
3. Added new slots to handle animation ready and finished events
4. Stored pending implicit size for animation completion
5. Used Q_ASSERT for connection verification

Log: Added smooth transition animation when closing prelaunch splash screen

Influence:

1. Test prelaunch splash with various surface sizes
2. Verify smooth animation when splash is destroyed
3. Check that connections are properly established
4. Test edge cases with same size transitions
5. Verify animation cleanup after completion
6. Test with different window states and geometries

feat: 为预启动闪屏过渡添加平滑动画

在从预启动闪屏过渡到主表面内容时添加了平滑的几何动画。之前当预启动闪屏
被销毁时，尺寸变化是突兀的。现在当当前隐式尺寸与目标表面尺寸存在显著差异
时，会应用平滑动画以提供更好的视觉体验。

实现包括：

1. 添加尺寸比较以检测何时需要动画
2. 使用动画引擎创建几何动画
3. 添加新的槽函数处理动画准备和完成事件
4. 存储待处理的隐式尺寸用于动画完成
5. 使用 Q_ASSERT 进行连接验证

Log: 关闭预启动闪屏时添加平滑过渡动画

Influence:

1. 测试不同表面尺寸的预启动闪屏
2. 验证闪屏销毁时的平滑动画效果
3. 检查连接是否正确建立
4. 测试相同尺寸过渡的边缘情况
5. 验证动画完成后的清理工作
6. 测试不同窗口状态和几何形状

Summary by Sourcery

Add a smooth geometry-based transition when closing the prelaunch splash and handing over to the main surface content.

New Features:

• Introduce size-difference detection to decide when to animate the transition from prelaunch splash to the main surface.
• Add a geometry animation for the prelaunch-to-main surface handoff using the existing animation engine.

Enhancements:

• Defer binding of the main surface implicit size until the prelaunch transition animation is ready, ensuring a visually consistent resize.
• Add dedicated slots and internal state to manage prelaunch geometry animation lifecycle and cleanup safely.

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[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: wineee

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• debian/deepin/OWNERS

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[sourcery-ai]

Reviewer's Guide

Implements a conditional geometry animation when destroying the prelaunch splash so that the SurfaceWrapper’s implicit size transitions smoothly to the main surface’s implicit size, wiring it into the existing animation engine and cleaning up the animation afterwards.

Sequence diagram for prelaunch splash destroy with conditional geometry animation

sequenceDiagram
    actor User
    participant SurfaceWrapper
    participant WSurfaceItem
    participant AnimationEngine as AnimationEngine
    participant GeometryAnimation as GeometryAnimation
    participant Container as Container

    User->>SurfaceWrapper: onPrelaunchSplashDestroyRequested()
    activate SurfaceWrapper
    SurfaceWrapper->>WSurfaceItem: read implicitWidth(), implicitHeight()
    SurfaceWrapper->>SurfaceWrapper: compute targetImplicitSize
    SurfaceWrapper->>SurfaceWrapper: compare implicitSize vs targetImplicitSize
    alt needImplicitSizeTransition and no m_geometryAnimation and container exists
        SurfaceWrapper->>SurfaceWrapper: store m_pendingPrelaunchImplicitSize
        SurfaceWrapper->>AnimationEngine: createGeometryAnimation(this, fromGeometry, toGeometry, container)
        AnimationEngine-->>SurfaceWrapper: m_geometryAnimation
        SurfaceWrapper->>GeometryAnimation: connect(ready, onPrelaunchGeometryAnimationReady)
        SurfaceWrapper->>GeometryAnimation: connect(finished, onPrelaunchGeometryAnimationFinished)
        SurfaceWrapper->>GeometryAnimation: invokeMethod(start)
        GeometryAnimation-->>SurfaceWrapper: ready()
        activate GeometryAnimation
        SurfaceWrapper->>SurfaceWrapper: onPrelaunchGeometryAnimationReady()
        SurfaceWrapper->>WSurfaceItem: connect implicitWidthChanged/implicitHeightChanged
        SurfaceWrapper->>WSurfaceItem: connect boundingRectChanged
        SurfaceWrapper->>SurfaceWrapper: setImplicitSize(m_pendingPrelaunchImplicitSize)
        GeometryAnimation-->>SurfaceWrapper: finished()
        SurfaceWrapper->>SurfaceWrapper: onPrelaunchGeometryAnimationFinished()
        SurfaceWrapper->>GeometryAnimation: disconnect(this)
        SurfaceWrapper->>GeometryAnimation: deleteLater()
        SurfaceWrapper->>SurfaceWrapper: m_geometryAnimation = nullptr
        deactivate GeometryAnimation
    else no implicit size transition needed
        SurfaceWrapper->>WSurfaceItem: connect implicitWidthChanged/implicitHeightChanged
        SurfaceWrapper->>WSurfaceItem: connect boundingRectChanged
        SurfaceWrapper->>SurfaceWrapper: setImplicitSize(targetImplicitSize)
    end
    SurfaceWrapper->>SurfaceWrapper: updateVisible()
    SurfaceWrapper-->>User: prelaunchSplashChanged()
    deactivate SurfaceWrapper

Loading

Updated class diagram for SurfaceWrapper prelaunch animation handling

classDiagram
    class SurfaceWrapper {
        // Members
        QPointer~QQuickItem~ m_coverContent
        QPointer~QQuickItem~ m_prelaunchSplash
        QList~WOutput*~ m_prelaunchOutputs
        QSizeF m_pendingPrelaunchImplicitSize
        QRectF m_boundedRect
        QRectF m_normalGeometry
        QRectF m_maximizedGeometry
        QObject* m_geometryAnimation
        AnimationEngine* m_engine

        // Slots
        void onPrelaunchSplashDestroyRequested()
        void onPrelaunchGeometryAnimationReady()
        void onPrelaunchGeometryAnimationFinished()
        bool startStateChangeAnimation(State targetState, const QRectF &targetGeometry)
        void onAnimationReady()
        void onAnimationFinished()
        void onWindowAnimationFinished()
        void onShowAnimationFinished()
    }

    class WSurfaceItem {
        qreal implicitWidth()
        qreal implicitHeight()
        signal implicitWidthChanged()
        signal implicitHeightChanged()
        signal boundingRectChanged()
    }

    class GeometryAnimation {
        signal ready()
        signal finished()
        void start()
        void deleteLater()
        void disconnect(QObject* object)
    }

    class AnimationEngine {
        GeometryAnimation* createGeometryAnimation(QObject* target, QRectF fromGeometry, QRectF toGeometry, QObject* container)
    }

    class QQuickItem {
    }

    class WOutput {
    }

    SurfaceWrapper --> WSurfaceItem : uses m_surfaceItem
    SurfaceWrapper --> QQuickItem : uses container()
    SurfaceWrapper --> WOutput : manages m_prelaunchOutputs
    SurfaceWrapper --> GeometryAnimation : manages m_geometryAnimation
    SurfaceWrapper --> AnimationEngine : uses m_engine
    GeometryAnimation --> SurfaceWrapper : emits ready, finished signals to slots
    WSurfaceItem --> SurfaceWrapper : emits implicitWidthChanged implicitHeightChanged boundingRectChanged to SurfaceWrapper

Loading

File-Level Changes

Change	Details	Files
Add conditional geometry animation for prelaunch splash destruction based on implicit size difference.	Compute target implicit size from the associated WSurfaceItem when the prelaunch splash destroy is requested. Compare current implicit size with target size using qFuzzyCompare to decide if a transition animation is required. Introduce a lambda to rebind implicit size/geometry and decoration stacking to the surface item when no animation is needed.	src/surface/surfacewrapper.cpp
Integrate geometry animation lifecycle (ready/finished) to drive a smooth size transition and ensure cleanup.	Create a geometry animation from current geometry to target implicit size via the animation engine when needed and a container is available. Connect animation ready/finished signals to new slots using Q_ASSERT to validate successful connections and invoke the animation start method via QMetaObject::invokeMethod. In the ready slot, apply the pending implicit size and re-establish bindings from the surface item, including bounding rect updates and decoration stacking. In the finished slot, disconnect the animation from this object, schedule its deletion with deleteLater, and null the pointer to avoid dangling usage. Store pending target implicit size in a new member to be used when the animation is ready.	src/surface/surfacewrapper.cpp src/surface/surfacewrapper.h
Extend SurfaceWrapper state to support prelaunch geometry animation handling.	Declare new slots onPrelaunchGeometryAnimationReady and onPrelaunchGeometryAnimationFinished in the SurfaceWrapper class. Add a QSizeF member m_pendingPrelaunchImplicitSize to cache the target size across the animation lifecycle. Include qassert.h to use Q_ASSERT for debugging-time validation of signal-slot connections and method invocation.	src/surface/surfacewrapper.cpp src/surface/surfacewrapper.h

Possibly linked issues

• #TODO: splash screen: PR improves splash transition smoothness, addressing the issue’s screen jump/abrupt change problems in splash replacement

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[wineee]

sudo rm -rf /var/lib/dde-dconfig-daemon/.config/global