Merge "Skip animation background if there is a wallpaper" into main
diff --git a/core/java/com/android/internal/policy/TransitionAnimation.java b/core/java/com/android/internal/policy/TransitionAnimation.java
index 66b2a9c..238e6f5 100644
--- a/core/java/com/android/internal/policy/TransitionAnimation.java
+++ b/core/java/com/android/internal/policy/TransitionAnimation.java
@@ -75,10 +75,11 @@
 /** @hide */
 public class TransitionAnimation {
     public static final int WALLPAPER_TRANSITION_NONE = 0;
-    public static final int WALLPAPER_TRANSITION_OPEN = 1;
-    public static final int WALLPAPER_TRANSITION_CLOSE = 2;
-    public static final int WALLPAPER_TRANSITION_INTRA_OPEN = 3;
-    public static final int WALLPAPER_TRANSITION_INTRA_CLOSE = 4;
+    public static final int WALLPAPER_TRANSITION_CHANGE = 1;
+    public static final int WALLPAPER_TRANSITION_OPEN = 2;
+    public static final int WALLPAPER_TRANSITION_CLOSE = 3;
+    public static final int WALLPAPER_TRANSITION_INTRA_OPEN = 4;
+    public static final int WALLPAPER_TRANSITION_INTRA_CLOSE = 5;
 
     // These are the possible states for the enter/exit activities during a thumbnail transition
     private static final int THUMBNAIL_TRANSITION_ENTER_SCALE_UP = 0;
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/transition/DefaultTransitionHandler.java b/libs/WindowManager/Shell/src/com/android/wm/shell/transition/DefaultTransitionHandler.java
index 9412b2b..9db153f 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/transition/DefaultTransitionHandler.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/transition/DefaultTransitionHandler.java
@@ -53,6 +53,7 @@
 import static android.window.TransitionInfo.FLAG_STARTING_WINDOW_TRANSFER_RECIPIENT;
 import static android.window.TransitionInfo.FLAG_TRANSLUCENT;
 
+import static com.android.internal.policy.TransitionAnimation.WALLPAPER_TRANSITION_CHANGE;
 import static com.android.internal.policy.TransitionAnimation.WALLPAPER_TRANSITION_CLOSE;
 import static com.android.internal.policy.TransitionAnimation.WALLPAPER_TRANSITION_INTRA_CLOSE;
 import static com.android.internal.policy.TransitionAnimation.WALLPAPER_TRANSITION_INTRA_OPEN;
@@ -944,12 +945,15 @@
     }
 
     private static int getWallpaperTransitType(TransitionInfo info) {
+        boolean hasWallpaper = false;
         boolean hasOpenWallpaper = false;
         boolean hasCloseWallpaper = false;
 
         for (int i = info.getChanges().size() - 1; i >= 0; --i) {
             final TransitionInfo.Change change = info.getChanges().get(i);
-            if ((change.getFlags() & FLAG_SHOW_WALLPAPER) != 0) {
+            if ((change.getFlags() & FLAG_SHOW_WALLPAPER) != 0
+                    || (change.getFlags() & FLAG_IS_WALLPAPER) != 0) {
+                hasWallpaper = true;
                 if (TransitionUtil.isOpeningType(change.getMode())) {
                     hasOpenWallpaper = true;
                 } else if (TransitionUtil.isClosingType(change.getMode())) {
@@ -965,6 +969,8 @@
             return WALLPAPER_TRANSITION_OPEN;
         } else if (hasCloseWallpaper) {
             return WALLPAPER_TRANSITION_CLOSE;
+        } else if (hasWallpaper) {
+            return WALLPAPER_TRANSITION_CHANGE;
         } else {
             return WALLPAPER_TRANSITION_NONE;
         }
diff --git a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/transition/ChangeBuilder.java b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/transition/ChangeBuilder.java
new file mode 100644
index 0000000..b54c3bf
--- /dev/null
+++ b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/transition/ChangeBuilder.java
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.wm.shell.transition;
+
+import static android.view.WindowManager.LayoutParams.ROTATION_ANIMATION_UNSPECIFIED;
+
+import static com.android.dx.mockito.inline.extended.ExtendedMockito.doReturn;
+
+import static org.mockito.Mockito.mock;
+
+import android.app.ActivityManager.RunningTaskInfo;
+import android.view.Surface;
+import android.view.SurfaceControl;
+import android.view.WindowManager;
+import android.window.TransitionInfo;
+
+public class ChangeBuilder {
+    final TransitionInfo.Change mChange;
+
+    ChangeBuilder(@WindowManager.TransitionType int mode) {
+        mChange = new TransitionInfo.Change(null /* token */, createMockSurface(true));
+        mChange.setMode(mode);
+    }
+
+    ChangeBuilder setFlags(@TransitionInfo.ChangeFlags int flags) {
+        mChange.setFlags(flags);
+        return this;
+    }
+
+    ChangeBuilder setTask(RunningTaskInfo taskInfo) {
+        mChange.setTaskInfo(taskInfo);
+        return this;
+    }
+
+    ChangeBuilder setRotate(int anim) {
+        return setRotate(Surface.ROTATION_90, anim);
+    }
+
+    ChangeBuilder setRotate() {
+        return setRotate(ROTATION_ANIMATION_UNSPECIFIED);
+    }
+
+    ChangeBuilder setRotate(@Surface.Rotation int target, int anim) {
+        mChange.setRotation(Surface.ROTATION_0, target);
+        mChange.setRotationAnimation(anim);
+        return this;
+    }
+
+    TransitionInfo.Change build() {
+        return mChange;
+    }
+
+    private static SurfaceControl createMockSurface(boolean valid) {
+        SurfaceControl sc = mock(SurfaceControl.class);
+        doReturn(valid).when(sc).isValid();
+        return sc;
+    }
+}
diff --git a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/transition/DefaultTransitionHandlerTest.java b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/transition/DefaultTransitionHandlerTest.java
new file mode 100644
index 0000000..754a173
--- /dev/null
+++ b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/transition/DefaultTransitionHandlerTest.java
@@ -0,0 +1,207 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.wm.shell.transition;
+
+import static android.app.WindowConfiguration.ACTIVITY_TYPE_STANDARD;
+import static android.app.WindowConfiguration.WINDOWING_MODE_FULLSCREEN;
+import static android.view.WindowManager.TRANSIT_OPEN;
+import static android.view.WindowManager.TRANSIT_SLEEP;
+import static android.view.WindowManager.TRANSIT_TO_BACK;
+import static android.window.TransitionInfo.FLAG_SYNC;
+import static android.window.TransitionInfo.FLAG_TRANSLUCENT;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+
+import android.app.ActivityManager.RunningTaskInfo;
+import android.content.Context;
+import android.os.Binder;
+import android.os.Handler;
+import android.os.IBinder;
+import android.os.Looper;
+import android.view.SurfaceControl;
+import android.window.TransitionInfo;
+import android.window.WindowContainerToken;
+
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.test.filters.SmallTest;
+import androidx.test.platform.app.InstrumentationRegistry;
+
+import com.android.wm.shell.RootTaskDisplayAreaOrganizer;
+import com.android.wm.shell.ShellTestCase;
+import com.android.wm.shell.TestShellExecutor;
+import com.android.wm.shell.common.DisplayController;
+import com.android.wm.shell.common.TransactionPool;
+import com.android.wm.shell.sysui.ShellInit;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+/**
+ * Tests for the default animation handler that is used if no other special-purpose handler picks
+ * up an animation request.
+ *
+ * Build/Install/Run:
+ * atest WMShellUnitTests:DefaultTransitionHandlerTest
+ */
+@SmallTest
+@RunWith(AndroidJUnit4.class)
+public class DefaultTransitionHandlerTest extends ShellTestCase {
+
+    private final Context mContext =
+            InstrumentationRegistry.getInstrumentation().getTargetContext();
+
+    private final DisplayController mDisplayController = mock(DisplayController.class);
+    private final TransactionPool mTransactionPool = new MockTransactionPool();
+    private final TestShellExecutor mMainExecutor = new TestShellExecutor();
+    private final TestShellExecutor mAnimExecutor = new TestShellExecutor();
+    private final Handler mMainHandler = new Handler(Looper.getMainLooper());
+
+    private ShellInit mShellInit;
+    private RootTaskDisplayAreaOrganizer mRootTaskDisplayAreaOrganizer;
+    private DefaultTransitionHandler mTransitionHandler;
+
+    @Before
+    public void setUp() {
+        mShellInit = new ShellInit(mMainExecutor);
+        mRootTaskDisplayAreaOrganizer = new RootTaskDisplayAreaOrganizer(
+                mMainExecutor,
+                mContext,
+                mShellInit);
+        mTransitionHandler = new DefaultTransitionHandler(
+                mContext, mShellInit, mDisplayController,
+                mTransactionPool, mMainExecutor, mMainHandler, mAnimExecutor,
+                mRootTaskDisplayAreaOrganizer);
+        mShellInit.init();
+    }
+
+    @After
+    public void tearDown() {
+        flushHandlers();
+    }
+
+    private void flushHandlers() {
+        mMainHandler.runWithScissors(() -> {
+            mAnimExecutor.flushAll();
+            mMainExecutor.flushAll();
+        }, 1000L);
+    }
+
+    @Test
+    public void testAnimationBackgroundCreatedForTaskTransition() {
+        final TransitionInfo.Change openTask = new ChangeBuilder(TRANSIT_OPEN)
+                .setTask(createTaskInfo(1))
+                .build();
+        final TransitionInfo.Change closeTask = new ChangeBuilder(TRANSIT_TO_BACK)
+                .setTask(createTaskInfo(2))
+                .build();
+
+        final IBinder token = new Binder();
+        final TransitionInfo info = new TransitionInfoBuilder(TRANSIT_OPEN)
+                .addChange(openTask)
+                .addChange(closeTask)
+                .build();
+        final SurfaceControl.Transaction startT = MockTransactionPool.create();
+        final SurfaceControl.Transaction finishT = MockTransactionPool.create();
+
+        mTransitionHandler.startAnimation(token, info, startT, finishT,
+                mock(Transitions.TransitionFinishCallback.class));
+
+        mergeSync(mTransitionHandler, token);
+        flushHandlers();
+
+        verify(startT).setColor(any(), any());
+    }
+
+    @Test
+    public void testNoAnimationBackgroundForTranslucentTasks() {
+        final TransitionInfo.Change openTask = new ChangeBuilder(TRANSIT_OPEN)
+                .setTask(createTaskInfo(1))
+                .setFlags(FLAG_TRANSLUCENT)
+                .build();
+        final TransitionInfo.Change closeTask = new ChangeBuilder(TRANSIT_TO_BACK)
+                .setTask(createTaskInfo(2))
+                .setFlags(FLAG_TRANSLUCENT)
+                .build();
+
+        final IBinder token = new Binder();
+        final TransitionInfo info = new TransitionInfoBuilder(TRANSIT_OPEN)
+                .addChange(openTask)
+                .addChange(closeTask)
+                .build();
+        final SurfaceControl.Transaction startT = MockTransactionPool.create();
+        final SurfaceControl.Transaction finishT = MockTransactionPool.create();
+
+        mTransitionHandler.startAnimation(token, info, startT, finishT,
+                mock(Transitions.TransitionFinishCallback.class));
+
+        mergeSync(mTransitionHandler, token);
+        flushHandlers();
+
+        verify(startT, never()).setColor(any(), any());
+    }
+
+    @Test
+    public void testNoAnimationBackgroundForWallpapers() {
+        final TransitionInfo.Change openWallpaper = new ChangeBuilder(TRANSIT_OPEN)
+                .setFlags(TransitionInfo.FLAG_IS_WALLPAPER)
+                .build();
+        final TransitionInfo.Change closeWallpaper = new ChangeBuilder(TRANSIT_TO_BACK)
+                .setFlags(TransitionInfo.FLAG_IS_WALLPAPER)
+                .build();
+
+        final IBinder token = new Binder();
+        final TransitionInfo info = new TransitionInfoBuilder(TRANSIT_OPEN)
+                .addChange(openWallpaper)
+                .addChange(closeWallpaper)
+                .build();
+        final SurfaceControl.Transaction startT = MockTransactionPool.create();
+        final SurfaceControl.Transaction finishT = MockTransactionPool.create();
+
+        mTransitionHandler.startAnimation(token, info, startT, finishT,
+                mock(Transitions.TransitionFinishCallback.class));
+
+        mergeSync(mTransitionHandler, token);
+        flushHandlers();
+
+        verify(startT, never()).setColor(any(), any());
+    }
+
+    private static void mergeSync(Transitions.TransitionHandler handler, IBinder token) {
+        handler.mergeAnimation(
+                new Binder(),
+                new TransitionInfoBuilder(TRANSIT_SLEEP, FLAG_SYNC).build(),
+                MockTransactionPool.create(),
+                token,
+                mock(Transitions.TransitionFinishCallback.class));
+    }
+
+    private static RunningTaskInfo createTaskInfo(int taskId) {
+        RunningTaskInfo taskInfo = new RunningTaskInfo();
+        taskInfo.taskId = taskId;
+        taskInfo.topActivityType = ACTIVITY_TYPE_STANDARD;
+        taskInfo.configuration.windowConfiguration.setWindowingMode(WINDOWING_MODE_FULLSCREEN);
+        taskInfo.configuration.windowConfiguration.setActivityType(taskInfo.topActivityType);
+        taskInfo.token = mock(WindowContainerToken.class);
+        return taskInfo;
+    }
+}
+
diff --git a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/transition/MockTransactionPool.java b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/transition/MockTransactionPool.java
new file mode 100644
index 0000000..574a87a
--- /dev/null
+++ b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/transition/MockTransactionPool.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.wm.shell.transition;
+
+import static org.mockito.Mockito.RETURNS_SELF;
+import static org.mockito.Mockito.mock;
+
+import android.view.SurfaceControl;
+
+import com.android.wm.shell.common.TransactionPool;
+import com.android.wm.shell.util.StubTransaction;
+
+public class MockTransactionPool extends TransactionPool {
+
+    public static SurfaceControl.Transaction create() {
+        return mock(StubTransaction.class, RETURNS_SELF);
+    }
+
+    @Override
+    public SurfaceControl.Transaction acquire() {
+        return create();
+    }
+
+    @Override
+    public void release(SurfaceControl.Transaction t) {
+    }
+}
diff --git a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/transition/ShellTransitionTests.java b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/transition/ShellTransitionTests.java
index 69a61ea..8331d59 100644
--- a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/transition/ShellTransitionTests.java
+++ b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/transition/ShellTransitionTests.java
@@ -79,7 +79,6 @@
 import android.view.IRecentsAnimationRunner;
 import android.view.Surface;
 import android.view.SurfaceControl;
-import android.view.WindowManager;
 import android.window.IRemoteTransition;
 import android.window.IRemoteTransitionFinishedCallback;
 import android.window.IWindowContainerToken;
@@ -1615,43 +1614,6 @@
                 eq(R.styleable.WindowAnimation_activityCloseEnterAnimation), anyBoolean());
     }
 
-    class ChangeBuilder {
-        final TransitionInfo.Change mChange;
-
-        ChangeBuilder(@WindowManager.TransitionType int mode) {
-            mChange = new TransitionInfo.Change(null /* token */, createMockSurface(true));
-            mChange.setMode(mode);
-        }
-
-        ChangeBuilder setFlags(@TransitionInfo.ChangeFlags int flags) {
-            mChange.setFlags(flags);
-            return this;
-        }
-
-        ChangeBuilder setTask(RunningTaskInfo taskInfo) {
-            mChange.setTaskInfo(taskInfo);
-            return this;
-        }
-
-        ChangeBuilder setRotate(int anim) {
-            return setRotate(Surface.ROTATION_90, anim);
-        }
-
-        ChangeBuilder setRotate() {
-            return setRotate(ROTATION_ANIMATION_UNSPECIFIED);
-        }
-
-        ChangeBuilder setRotate(@Surface.Rotation int target, int anim) {
-            mChange.setRotation(Surface.ROTATION_0, target);
-            mChange.setRotationAnimation(anim);
-            return this;
-        }
-
-        TransitionInfo.Change build() {
-            return mChange;
-        }
-    }
-
     class TestTransitionHandler implements Transitions.TransitionHandler {
         ArrayList<Pair<IBinder, Transitions.TransitionFinishCallback>> mFinishes =
                 new ArrayList<>();
@@ -1740,12 +1702,6 @@
                 .addChange(TRANSIT_OPEN).addChange(TRANSIT_CLOSE).build();
     }
 
-    private static SurfaceControl createMockSurface(boolean valid) {
-        SurfaceControl sc = mock(SurfaceControl.class);
-        doReturn(valid).when(sc).isValid();
-        return sc;
-    }
-
     private static RunningTaskInfo createTaskInfo(int taskId, int windowingMode, int activityType) {
         RunningTaskInfo taskInfo = new RunningTaskInfo();
         taskInfo.taskId = taskId;