Merge "Fix divider display issue" into sc-v2-dev am: bd64fd9f66

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15824236

Change-Id: I90ccc834dabbad3ecc203a5f36e0e937878513bb

libs/WindowManager/Shell/src/com/android/wm/shell/apppairs/AppPair.java

@@ -43,6 +43,7 @@ import com.android.wm.shell.common.DisplayImeController;
 import com.android.wm.shell.common.SurfaceUtils;
 import com.android.wm.shell.common.SyncTransactionQueue;
 import com.android.wm.shell.common.split.SplitLayout;
+import com.android.wm.shell.common.split.SplitWindowManager;
 
 import java.io.PrintWriter;
 
@@ -70,6 +71,19 @@ class AppPair implements ShellTaskOrganizer.TaskListener, SplitLayout.SplitLayou
     private final DisplayImeController mDisplayImeController;
     private SplitLayout mSplitLayout;
 
+    private final SplitWindowManager.ParentContainerCallbacks mParentContainerCallbacks =
+            new SplitWindowManager.ParentContainerCallbacks() {
+        @Override
+        public void attachToParentSurface(SurfaceControl.Builder b) {
+            b.setParent(mRootTaskLeash);
+        }
+
+        @Override
+        public void onLeashReady(SurfaceControl leash) {
+            mSyncQueue.runInSync(t -> t.show(leash));
+        }
+    };
+
     AppPair(AppPairsController controller) {
         mController = controller;
         mSyncQueue = controller.getSyncTransactionQueue();
@@ -110,8 +124,7 @@ class AppPair implements ShellTaskOrganizer.TaskListener, SplitLayout.SplitLayou
         mSplitLayout = new SplitLayout(TAG + "SplitDivider",
                 mDisplayController.getDisplayContext(mRootTaskInfo.displayId),
                 mRootTaskInfo.configuration, this /* layoutChangeListener */,
-                b -> b.setParent(mRootTaskLeash), mDisplayImeController,
-                mController.getTaskOrganizer());
+                mParentContainerCallbacks, mDisplayImeController, mController.getTaskOrganizer());
 
         final WindowContainerToken token1 = task1.token;
         final WindowContainerToken token2 = task2.token;
@@ -218,8 +231,6 @@ class AppPair implements ShellTaskOrganizer.TaskListener, SplitLayout.SplitLayou
                 if (mSplitLayout.updateConfiguration(mRootTaskInfo.configuration)) {
                     onLayoutChanged(mSplitLayout);
                 }
-                // updateConfiguration re-inits the dividerbar, so show it now
-                mSyncQueue.runInSync(t -> t.show(mSplitLayout.getDividerLeash()));
             }
         } else if (taskInfo.taskId == getTaskId1()) {
             mTaskInfo1 = taskInfo;

libs/WindowManager/Shell/src/com/android/wm/shell/common/split/SplitLayout.java

@@ -125,8 +125,8 @@ public final class SplitLayout implements DisplayInsetsController.OnInsetsChange
         mRotation = configuration.windowConfiguration.getRotation();
         mSplitLayoutHandler = splitLayoutHandler;
         mDisplayImeController = displayImeController;
-        mSplitWindowManager = new SplitWindowManager(
-                windowName, mContext, configuration, parentContainerCallbacks);
+        mSplitWindowManager = new SplitWindowManager(windowName, mContext, configuration,
+                parentContainerCallbacks);
         mTaskOrganizer = taskOrganizer;
         mImePositionProcessor = new ImePositionProcessor(mContext.getDisplayId());
         mDismissingParallaxPolicy = new DismissingParallaxPolicy();
@@ -181,22 +181,19 @@ public final class SplitLayout implements DisplayInsetsController.OnInsetsChange
     public boolean updateConfiguration(Configuration configuration) {
         boolean affectsLayout = false;
 
-        // Make sure to render the divider bar with proper resources that matching the screen
-        // orientation.
-        final int orientation = configuration.orientation;
-        if (orientation != mOrientation) {
-            mOrientation = orientation;
-            mContext = mContext.createConfigurationContext(configuration);
-            mSplitWindowManager.setConfiguration(configuration);
-            affectsLayout = true;
-        }
-
         // Update the split bounds when necessary. Besides root bounds changed, split bounds need to
         // be updated when the rotation changed to cover the case that users rotated the screen 180
         // degrees.
+        // Make sure to render the divider bar with proper resources that matching the screen
+        // orientation.
         final int rotation = configuration.windowConfiguration.getRotation();
         final Rect rootBounds = configuration.windowConfiguration.getBounds();
-        if (rotation != mRotation || !mRootBounds.equals(rootBounds)) {
+        final int orientation = configuration.orientation;
+        if (rotation != mRotation || !mRootBounds.equals(rootBounds)
+                || orientation != mOrientation) {
+            mContext = mContext.createConfigurationContext(configuration);
+            mSplitWindowManager.setConfiguration(configuration);
+            mOrientation = orientation;
             mTempRect.set(mRootBounds);
             mRootBounds.set(rootBounds);
             mDividerSnapAlgorithm = getSnapAlgorithm(mContext, mRootBounds);

libs/WindowManager/Shell/src/com/android/wm/shell/common/split/SplitWindowManager.java

@@ -64,6 +64,7 @@ public final class SplitWindowManager extends WindowlessWindowManager {
 
     public interface ParentContainerCallbacks {
         void attachToParentSurface(SurfaceControl.Builder b);
+        void onLeashReady(SurfaceControl leash);
     }
 
     public SplitWindowManager(String windowName, Context context, Configuration config,
@@ -100,6 +101,7 @@ public final class SplitWindowManager extends WindowlessWindowManager {
                 .setCallsite("SplitWindowManager#attachToParentSurface");
         mParentContainerCallbacks.attachToParentSurface(builder);
         mLeash = builder.build();
+        mParentContainerCallbacks.onLeashReady(mLeash);
         b.setParent(mLeash);
     }
 

libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageCoordinator.java

@@ -90,6 +90,7 @@ import com.android.wm.shell.common.SyncTransactionQueue;
 import com.android.wm.shell.common.TransactionPool;
 import com.android.wm.shell.common.split.SplitLayout;
 import com.android.wm.shell.common.split.SplitLayout.SplitPosition;
+import com.android.wm.shell.common.split.SplitWindowManager;
 import com.android.wm.shell.protolog.ShellProtoLogGroup;
 import com.android.wm.shell.transition.Transitions;
 
@@ -163,6 +164,19 @@ class StageCoordinator implements SplitLayout.SplitLayoutHandler,
         mDismissTop = NO_DISMISS;
     };
 
+    private final SplitWindowManager.ParentContainerCallbacks mParentContainerCallbacks =
+            new SplitWindowManager.ParentContainerCallbacks() {
+        @Override
+        public void attachToParentSurface(SurfaceControl.Builder b) {
+            mRootTDAOrganizer.attachToDisplayArea(mDisplayId, b);
+        }
+
+        @Override
+        public void onLeashReady(SurfaceControl leash) {
+            mSyncQueue.runInSync(t -> applyDividerVisibility(t));
+        }
+    };
+
     StageCoordinator(Context context, int displayId, SyncTransactionQueue syncQueue,
             RootTaskDisplayAreaOrganizer rootTDAOrganizer, ShellTaskOrganizer taskOrganizer,
             DisplayImeController displayImeController,
@@ -726,7 +740,6 @@ class StageCoordinator implements SplitLayout.SplitLayoutHandler,
         } else {
             t.hide(dividerLeash);
         }
-
     }
 
     private void onStageHasChildrenChanged(StageListenerImpl stageListener) {
@@ -852,8 +865,7 @@ class StageCoordinator implements SplitLayout.SplitLayoutHandler,
         mDisplayAreaInfo = displayAreaInfo;
         if (mSplitLayout == null) {
             mSplitLayout = new SplitLayout(TAG + "SplitDivider", mContext,
-                    mDisplayAreaInfo.configuration, this,
-                    b -> mRootTDAOrganizer.attachToDisplayArea(mDisplayId, b),
+                    mDisplayAreaInfo.configuration, this, mParentContainerCallbacks,
                     mDisplayImeController, mTaskOrganizer);
             mDisplayInsetsController.addInsetsChangedListener(mDisplayId, mSplitLayout);
         }
@@ -871,7 +883,6 @@ class StageCoordinator implements SplitLayout.SplitLayoutHandler,
                 && mSplitLayout.updateConfiguration(mDisplayAreaInfo.configuration)
                 && mMainStage.isActive()) {
             onLayoutChanged(mSplitLayout);
-            mSyncQueue.runInSync(t -> applyDividerVisibility(t));
         }
     }
 

libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/common/split/SplitLayoutTests.java

@@ -29,7 +29,6 @@ import static org.mockito.Mockito.verify;
 
 import android.content.res.Configuration;
 import android.graphics.Rect;
-import android.view.SurfaceControl;
 
 import androidx.test.annotation.UiThreadTest;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
@@ -53,7 +52,7 @@ import org.mockito.MockitoAnnotations;
 @RunWith(AndroidJUnit4.class)
 public class SplitLayoutTests extends ShellTestCase {
     @Mock SplitLayout.SplitLayoutHandler mSplitLayoutHandler;
-    @Mock SurfaceControl mRootLeash;
+    @Mock SplitWindowManager.ParentContainerCallbacks mCallbacks;
     @Mock DisplayImeController mDisplayImeController;
     @Mock ShellTaskOrganizer mTaskOrganizer;
     @Captor ArgumentCaptor<Runnable> mRunnableCaptor;
@@ -67,7 +66,7 @@ public class SplitLayoutTests extends ShellTestCase {
                 mContext,
                 getConfiguration(),
                 mSplitLayoutHandler,
-                b -> b.setParent(mRootLeash),
+                mCallbacks,
                 mDisplayImeController,
                 mTaskOrganizer));
     }

libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/common/split/SplitWindowManagerTests.java

@@ -23,7 +23,6 @@ import static org.mockito.Mockito.when;
 import android.content.res.Configuration;
 import android.graphics.Rect;
 import android.view.InsetsState;
-import android.view.SurfaceControl;
 
 import androidx.test.annotation.UiThreadTest;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
@@ -41,8 +40,8 @@ import org.mockito.MockitoAnnotations;
 @SmallTest
 @RunWith(AndroidJUnit4.class)
 public class SplitWindowManagerTests extends ShellTestCase {
-    @Mock SurfaceControl mSurfaceControl;
     @Mock SplitLayout mSplitLayout;
+    @Mock SplitWindowManager.ParentContainerCallbacks mCallbacks;
     private SplitWindowManager mSplitWindowManager;
 
     @Before
@@ -51,7 +50,7 @@ public class SplitWindowManagerTests extends ShellTestCase {
         final Configuration configuration = new Configuration();
         configuration.setToDefaults();
         mSplitWindowManager = new SplitWindowManager("TestSplitDivider", mContext, configuration,
-                b -> b.setParent(mSurfaceControl));
+                mCallbacks);
         when(mSplitLayout.getDividerBounds()).thenReturn(
                 new Rect(0, 0, configuration.windowConfiguration.getBounds().width(),
                         configuration.windowConfiguration.getBounds().height()));