feat: add bubble removal animation

panels/notification/bubble/bubblemodel.cpp

@@ -137,15 +137,36 @@
     for (const auto &item : m_bubbles) {
         if (item->id() == id) {
             m_delayBubbles.removeAll(id);
-            remove(m_bubbles.indexOf(item));
+            // Emit signal before removing to trigger QML animation
+            Q_EMIT bubbleAboutToRemove(id);
+            // Delay the actual removal to allow animation to complete
+            QTimer::singleShot(m_removeAnimationDuration, this, [this, id]() {
+                for (const auto &item : m_bubbles) {
+                    if (item->id() == id) {
+                        remove(m_bubbles.indexOf(item));
+                        break;
+                    }
+                }
+            });
             return item;
         }
     }
 
     return nullptr;
 }
 
+int BubbleModel::removeAnimationDuration() const
+{
+    return m_removeAnimationDuration;
+}
+
+void BubbleModel::setRemoveAnimationDuration(int duration)
+{
+    m_removeAnimationDuration = duration + 100;
+    Q_EMIT removeAnimationDurationChanged();
+}
+
 BubbleItem *BubbleModel::bubbleItem(int bubbleIndex) const
 {
     if (bubbleIndex < 0 || bubbleIndex >= items().count())
         return nullptr;

panels/notification/bubble/bubblemodel.h

@@ -18,6 +18,7 @@
 {
     Q_OBJECT
     Q_PROPERTY(qint64 delayRemovedBubble READ delayRemovedBubble WRITE setDelayRemovedBubble NOTIFY delayRemovedBubbleChanged FINAL)
+    Q_PROPERTY(int removeAnimationDuration READ removeAnimationDuration WRITE setRemoveAnimationDuration NOTIFY removeAnimationDurationChanged FINAL)
 public:
     enum {
         AppName = Qt::UserRole + 1,
@@ -64,10 +65,15 @@
     qint64 delayRemovedBubble() const;
     void setDelayRemovedBubble(qint64 newDelayRemovedBubble);
 
+    int removeAnimationDuration() const;
+    void setRemoveAnimationDuration(int duration);
+
     void clearInvalidBubbles();
 
 signals:
     void delayRemovedBubbleChanged();
+    void bubbleAboutToRemove(qint64 id);
+    void removeAnimationDurationChanged();
 
 private:
     void updateBubbleCount(int count);
@@ -85,6 +91,7 @@
     QList<qint64> m_delayBubbles;
     qint64 m_delayRemovedBubble{NotifyEntity::InvalidId};
     const int DelayRemovBubbleTime{1000};
+    int m_removeAnimationDuration{700};
 };
 
 }

panels/notification/bubble/package/Bubble.qml

@@ -12,13 +12,47 @@ Control {
     id: control
     height: loader.height
     property var bubble
+    property bool isRemoving: false
+
+    Connections {
+        target: Applet.bubbles
+        function onBubbleAboutToRemove(id) {
+            if (id === bubble.id) {
+                control.isRemoving = true
+            }
+        }
+    }
+
     onHoveredChanged: function () {
         if (control.hovered) {
             Applet.bubbles.delayRemovedBubble = bubble.id
         } else {
             Applet.bubbles.delayRemovedBubble = NotifyEntity.InvalidId
         }
     }
+
+    states: [
+        State {
+            name: "removing"
+            when: control.isRemoving
+            PropertyChanges {
+                target: control
+                x: control.width
+                opacity: 0
+            }
+        }
+    ]
+
+    transitions: [
+        Transition {
+            to: "removing"
+            NumberAnimation {
+                properties: "x,opacity"
+                duration: Applet.bubbles.removeAnimationDuration
+                easing.type: Easing.InExpo
+            }
+        }
+    ]
 
     Loader {
         id: loader

panels/notification/bubble/package/main.qml

@@ -12,6 +12,12 @@ import org.deepin.dtk 1.0
 
 Window {
     id: root
+
+    readonly property int removeAnimationDuration: 600
+
+    Component.onCompleted: {
+        Applet.bubbles.removeAnimationDuration = removeAnimationDuration
+    }
 
     function windowMargin(position) {
         let dockApplet = DS.applet("org.deepin.ds.dock")
@@ -105,6 +111,7 @@ Window {
         model: Applet.bubbles
         interactive: false
         verticalLayoutDirection: ListView.BottomToTop
+        cacheBuffer: 0
         add: Transition {
             id: addTrans
             // Before starting the new animation, forcibly complete the previous notification bubble's animation
@@ -128,6 +135,31 @@ Window {
                 easing.type: Easing.OutExpo
             }
         }
+        remove: Transition {
+            NumberAnimation {
+                target: removeTrans.ViewTransition.item
+                property: "x"
+                from: 0
+                to: removeTrans.ViewTransition.item.width
+                duration: root.removeAnimationDuration
+                easing.type: Easing.InExpo
+            }
+            NumberAnimation {
+                target: removeTrans.ViewTransition.item
+                property: "opacity"
+                from: 1.0
+                to: 0.0
+                duration: root.removeAnimationDuration
+                easing.type: Easing.InExpo
+            }
+        }
+        removeDisplaced: Transition {
+            NumberAnimation {
+                properties: "y"
+                duration: 400
+                easing.type: Easing.OutCubic
+            }
+        }
         delegate: Bubble {
             width: 360
             bubble: model