Merge "Hook EmbeddedActivityWindowInfo APIs to ClientTransactionListener" into main
diff --git a/libs/WindowManager/Jetpack/src/androidx/window/extensions/embedding/SplitController.java b/libs/WindowManager/Jetpack/src/androidx/window/extensions/embedding/SplitController.java
index 038d008..1abda42 100644
--- a/libs/WindowManager/Jetpack/src/androidx/window/extensions/embedding/SplitController.java
+++ b/libs/WindowManager/Jetpack/src/androidx/window/extensions/embedding/SplitController.java
@@ -56,6 +56,7 @@
 import android.app.ActivityThread;
 import android.app.Application;
 import android.app.Instrumentation;
+import android.app.servertransaction.ClientTransactionListenerController;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
@@ -103,6 +104,7 @@
 import java.util.Objects;
 import java.util.Set;
 import java.util.concurrent.Executor;
+import java.util.function.BiConsumer;
 
 /**
  * Main controller class that manages split states and presentation.
@@ -178,6 +180,20 @@
 
     private final List<ActivityStack> mLastReportedActivityStacks = new ArrayList<>();
 
+    /** WM Jetpack set callback for {@link EmbeddedActivityWindowInfo}. */
+    @GuardedBy("mLock")
+    @Nullable
+    private Pair<Executor, Consumer<EmbeddedActivityWindowInfo>>
+            mEmbeddedActivityWindowInfoCallback;
+
+    /** Listener registered to {@link ClientTransactionListenerController}. */
+    @GuardedBy("mLock")
+    @Nullable
+    private final BiConsumer<IBinder, ActivityWindowInfo> mActivityWindowInfoListener =
+            Flags.activityWindowInfoFlag()
+                    ? this::onActivityWindowInfoChanged
+                    : null;
+
     private final Handler mHandler;
     final Object mLock = new Object();
     private final ActivityStartMonitor mActivityStartMonitor;
@@ -2456,6 +2472,13 @@
     }
 
     @VisibleForTesting
+    @Nullable
+    ActivityThread.ActivityClientRecord getActivityClientRecord(@NonNull Activity activity) {
+        return ActivityThread.currentActivityThread()
+                .getActivityClient(activity.getActivityToken());
+    }
+
+    @VisibleForTesting
     ActivityStartMonitor getActivityStartMonitor() {
         return mActivityStartMonitor;
     }
@@ -2468,8 +2491,7 @@
     @VisibleForTesting
     @Nullable
     IBinder getTaskFragmentTokenFromActivityClientRecord(@NonNull Activity activity) {
-        final ActivityThread.ActivityClientRecord record = ActivityThread.currentActivityThread()
-                .getActivityClient(activity.getActivityToken());
+        final ActivityThread.ActivityClientRecord record = getActivityClientRecord(activity);
         return record != null ? record.mTaskFragmentToken : null;
     }
 
@@ -2876,17 +2898,102 @@
         }
     }
 
+    @Override
+    public void setEmbeddedActivityWindowInfoCallback(@NonNull Executor executor,
+            @NonNull Consumer<EmbeddedActivityWindowInfo> callback) {
+        if (!Flags.activityWindowInfoFlag()) {
+            return;
+        }
+        Objects.requireNonNull(executor);
+        Objects.requireNonNull(callback);
+        synchronized (mLock) {
+            if (mEmbeddedActivityWindowInfoCallback == null) {
+                ClientTransactionListenerController.getInstance()
+                        .registerActivityWindowInfoChangedListener(getActivityWindowInfoListener());
+            }
+            mEmbeddedActivityWindowInfoCallback = new Pair<>(executor, callback);
+        }
+    }
+
+    @Override
+    public void clearEmbeddedActivityWindowInfoCallback() {
+        if (!Flags.activityWindowInfoFlag()) {
+            return;
+        }
+        synchronized (mLock) {
+            if (mEmbeddedActivityWindowInfoCallback == null) {
+                return;
+            }
+            mEmbeddedActivityWindowInfoCallback = null;
+            ClientTransactionListenerController.getInstance()
+                    .unregisterActivityWindowInfoChangedListener(getActivityWindowInfoListener());
+        }
+    }
+
+    @VisibleForTesting
+    @GuardedBy("mLock")
     @Nullable
-    private static ActivityWindowInfo getActivityWindowInfo(@NonNull Activity activity) {
+    BiConsumer<IBinder, ActivityWindowInfo> getActivityWindowInfoListener() {
+        return mActivityWindowInfoListener;
+    }
+
+    @Nullable
+    @Override
+    public EmbeddedActivityWindowInfo getEmbeddedActivityWindowInfo(@NonNull Activity activity) {
+        if (!Flags.activityWindowInfoFlag()) {
+            return null;
+        }
+        synchronized (mLock) {
+            final ActivityWindowInfo activityWindowInfo = getActivityWindowInfo(activity);
+            return activityWindowInfo != null
+                    ? translateActivityWindowInfo(activity, activityWindowInfo)
+                    : null;
+        }
+    }
+
+    @VisibleForTesting
+    void onActivityWindowInfoChanged(@NonNull IBinder activityToken,
+            @NonNull ActivityWindowInfo activityWindowInfo) {
+        synchronized (mLock) {
+            if (mEmbeddedActivityWindowInfoCallback == null) {
+                return;
+            }
+            final Executor executor = mEmbeddedActivityWindowInfoCallback.first;
+            final Consumer<EmbeddedActivityWindowInfo> callback =
+                    mEmbeddedActivityWindowInfoCallback.second;
+
+            final Activity activity = getActivity(activityToken);
+            if (activity == null) {
+                return;
+            }
+            final EmbeddedActivityWindowInfo info = translateActivityWindowInfo(
+                    activity, activityWindowInfo);
+
+            executor.execute(() -> callback.accept(info));
+        }
+    }
+
+    @Nullable
+    private ActivityWindowInfo getActivityWindowInfo(@NonNull Activity activity) {
         if (activity.isFinishing()) {
             return null;
         }
-        final ActivityThread.ActivityClientRecord record =
-                ActivityThread.currentActivityThread()
-                        .getActivityClient(activity.getActivityToken());
+        final ActivityThread.ActivityClientRecord record = getActivityClientRecord(activity);
         return record != null ? record.getActivityWindowInfo() : null;
     }
 
+    @NonNull
+    private static EmbeddedActivityWindowInfo translateActivityWindowInfo(
+            @NonNull Activity activity, @NonNull ActivityWindowInfo activityWindowInfo) {
+        final boolean isEmbedded = activityWindowInfo.isEmbedded();
+        final Rect activityBounds = new Rect(activity.getResources().getConfiguration()
+                .windowConfiguration.getBounds());
+        final Rect taskBounds = new Rect(activityWindowInfo.getTaskBounds());
+        final Rect activityStackBounds = new Rect(activityWindowInfo.getTaskFragmentBounds());
+        return new EmbeddedActivityWindowInfo(activity, isEmbedded, activityBounds, taskBounds,
+                activityStackBounds);
+    }
+
     /**
      * If the two rules have the same presentation, and the calculated {@link SplitAttributes}
      * matches the {@link SplitAttributes} of {@link SplitContainer}, we can reuse the same
diff --git a/libs/WindowManager/Jetpack/tests/unittest/src/androidx/window/extensions/embedding/SplitControllerTest.java b/libs/WindowManager/Jetpack/tests/unittest/src/androidx/window/extensions/embedding/SplitControllerTest.java
index 00f8b59..bdeeb73 100644
--- a/libs/WindowManager/Jetpack/tests/unittest/src/androidx/window/extensions/embedding/SplitControllerTest.java
+++ b/libs/WindowManager/Jetpack/tests/unittest/src/androidx/window/extensions/embedding/SplitControllerTest.java
@@ -72,6 +72,8 @@
 import android.annotation.NonNull;
 import android.app.Activity;
 import android.app.ActivityOptions;
+import android.app.ActivityThread;
+import android.app.servertransaction.ClientTransactionListenerController;
 import android.content.ComponentName;
 import android.content.Intent;
 import android.content.pm.ActivityInfo;
@@ -83,9 +85,11 @@
 import android.os.Handler;
 import android.os.IBinder;
 import android.platform.test.annotations.Presubmit;
+import android.platform.test.flag.junit.SetFlagsRule;
 import android.util.ArraySet;
 import android.view.WindowInsets;
 import android.view.WindowMetrics;
+import android.window.ActivityWindowInfo;
 import android.window.TaskFragmentInfo;
 import android.window.TaskFragmentOrganizer;
 import android.window.TaskFragmentParentInfo;
@@ -99,7 +103,10 @@
 import androidx.window.extensions.layout.WindowLayoutComponentImpl;
 import androidx.window.extensions.layout.WindowLayoutInfo;
 
+import com.android.window.flags.Flags;
+
 import org.junit.Before;
+import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.ArgumentCaptor;
@@ -110,6 +117,8 @@
 import java.util.Collections;
 import java.util.List;
 import java.util.Set;
+import java.util.concurrent.Executor;
+import java.util.function.BiConsumer;
 import java.util.function.Consumer;
 
 /**
@@ -127,6 +136,9 @@
     private static final Intent PLACEHOLDER_INTENT = new Intent().setComponent(
             new ComponentName("test", "placeholder"));
 
+    @Rule
+    public final SetFlagsRule mSetFlagRule = new SetFlagsRule();
+
     private Activity mActivity;
     @Mock
     private Resources mActivityResources;
@@ -138,6 +150,13 @@
     private Handler mHandler;
     @Mock
     private WindowLayoutComponentImpl mWindowLayoutComponent;
+    @Mock
+    private ActivityWindowInfo mActivityWindowInfo;
+    @Mock
+    private BiConsumer<IBinder, ActivityWindowInfo> mActivityWindowInfoListener;
+    @Mock
+    private androidx.window.extensions.core.util.function.Consumer<EmbeddedActivityWindowInfo>
+            mEmbeddedActivityWindowInfoCallback;
 
     private SplitController mSplitController;
     private SplitPresenter mSplitPresenter;
@@ -1529,6 +1548,73 @@
                 .getTopNonFinishingActivity(), secondaryActivity);
     }
 
+    @Test
+    public void testIsActivityEmbedded() {
+        mSetFlagRule.enableFlags(Flags.FLAG_ACTIVITY_WINDOW_INFO_FLAG);
+
+        assertFalse(mSplitController.isActivityEmbedded(mActivity));
+
+        doReturn(true).when(mActivityWindowInfo).isEmbedded();
+
+        assertTrue(mSplitController.isActivityEmbedded(mActivity));
+    }
+
+    @Test
+    public void testGetEmbeddedActivityWindowInfo() {
+        mSetFlagRule.enableFlags(Flags.FLAG_ACTIVITY_WINDOW_INFO_FLAG);
+
+        final boolean isEmbedded = true;
+        final Rect activityBounds = mActivity.getResources().getConfiguration().windowConfiguration
+                .getBounds();
+        final Rect taskBounds = new Rect(0, 0, 1000, 2000);
+        final Rect activityStackBounds = new Rect(0, 0, 500, 2000);
+        doReturn(isEmbedded).when(mActivityWindowInfo).isEmbedded();
+        doReturn(taskBounds).when(mActivityWindowInfo).getTaskBounds();
+        doReturn(activityStackBounds).when(mActivityWindowInfo).getTaskFragmentBounds();
+
+        final EmbeddedActivityWindowInfo expected = new EmbeddedActivityWindowInfo(mActivity,
+                isEmbedded, activityBounds, taskBounds, activityStackBounds);
+        assertEquals(expected, mSplitController.getEmbeddedActivityWindowInfo(mActivity));
+    }
+
+    @Test
+    public void testSetEmbeddedActivityWindowInfoCallback() {
+        mSetFlagRule.enableFlags(Flags.FLAG_ACTIVITY_WINDOW_INFO_FLAG);
+
+        final ClientTransactionListenerController controller = ClientTransactionListenerController
+                .getInstance();
+        spyOn(controller);
+        doNothing().when(controller).registerActivityWindowInfoChangedListener(any());
+        doReturn(mActivityWindowInfoListener).when(mSplitController)
+                .getActivityWindowInfoListener();
+        final Executor executor = Runnable::run;
+
+        // Register to ClientTransactionListenerController
+        mSplitController.setEmbeddedActivityWindowInfoCallback(executor,
+                mEmbeddedActivityWindowInfoCallback);
+
+        verify(controller).registerActivityWindowInfoChangedListener(mActivityWindowInfoListener);
+        verify(mEmbeddedActivityWindowInfoCallback, never()).accept(any());
+
+        // Test onActivityWindowInfoChanged triggered.
+        mSplitController.onActivityWindowInfoChanged(mActivity.getActivityToken(),
+                mActivityWindowInfo);
+
+        verify(mEmbeddedActivityWindowInfoCallback).accept(any());
+
+        // Unregister to ClientTransactionListenerController
+        mSplitController.clearEmbeddedActivityWindowInfoCallback();
+
+        verify(controller).unregisterActivityWindowInfoChangedListener(mActivityWindowInfoListener);
+
+        // Test onActivityWindowInfoChanged triggered as no-op after clear callback.
+        clearInvocations(mEmbeddedActivityWindowInfoCallback);
+        mSplitController.onActivityWindowInfoChanged(mActivity.getActivityToken(),
+                mActivityWindowInfo);
+
+        verify(mEmbeddedActivityWindowInfoCallback, never()).accept(any());
+    }
+
     /** Creates a mock activity in the organizer process. */
     private Activity createMockActivity() {
         return createMockActivity(TASK_ID);
@@ -1537,13 +1623,17 @@
     /** Creates a mock activity in the organizer process. */
     private Activity createMockActivity(int taskId) {
         final Activity activity = mock(Activity.class);
+        final ActivityThread.ActivityClientRecord activityClientRecord =
+                mock(ActivityThread.ActivityClientRecord.class);
         doReturn(mActivityResources).when(activity).getResources();
         final IBinder activityToken = new Binder();
         doReturn(activityToken).when(activity).getActivityToken();
         doReturn(activity).when(mSplitController).getActivity(activityToken);
+        doReturn(activityClientRecord).when(mSplitController).getActivityClientRecord(activity);
         doReturn(taskId).when(activity).getTaskId();
         doReturn(new ActivityInfo()).when(activity).getActivityInfo();
         doReturn(DEFAULT_DISPLAY).when(activity).getDisplayId();
+        doReturn(mActivityWindowInfo).when(activityClientRecord).getActivityWindowInfo();
         return activity;
     }