Merge "Remove clip adjustment to fix bottom screen flicker issue. Add a flicker test to verify animation background is no longer visible through the transition after the fix." into udc-qpr-dev am: 3dfd9e6c02

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23660587

Change-Id: Id9ac2f2565cdcc2a7b48cc1331a61cfe82366088
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

libs/WindowManager/Shell/src/com/android/wm/shell/activityembedding/ActivityEmbeddingAnimationAdapter.java

@@ -50,7 +50,7 @@ class ActivityEmbeddingAnimationAdapter {
     final SurfaceControl mLeash;
     /** Area in absolute coordinate that the animation surface shouldn't go beyond. */
     @NonNull
-    private final Rect mWholeAnimationBounds = new Rect();
+    final Rect mWholeAnimationBounds = new Rect();
     /**
      * Area in absolute coordinate that should represent all the content to show for this window.
      * This should be the end bounds for opening window, and start bounds for closing window in case
@@ -229,20 +229,7 @@ class ActivityEmbeddingAnimationAdapter {
             mTransformation.getMatrix().postTranslate(mContentRelOffset.x, mContentRelOffset.y);
             t.setMatrix(mLeash, mTransformation.getMatrix(), mMatrix);
             t.setAlpha(mLeash, mTransformation.getAlpha());
-
+            t.setWindowCrop(mLeash, mWholeAnimationBounds.width(), mWholeAnimationBounds.height());
-            // The following applies an inverse scale to the clip-rect so that it crops "after" the
-            // scale instead of before.
-            mVecs[1] = mVecs[2] = 0;
-            mVecs[0] = mVecs[3] = 1;
-            mTransformation.getMatrix().mapVectors(mVecs);
-            mVecs[0] = 1.f / mVecs[0];
-            mVecs[3] = 1.f / mVecs[3];
-            final Rect clipRect = mTransformation.getClipRect();
-            mRect.left = (int) (clipRect.left * mVecs[0] + 0.5f);
-            mRect.right = (int) (clipRect.right * mVecs[0] + 0.5f);
-            mRect.top = (int) (clipRect.top * mVecs[3] + 0.5f);
-            mRect.bottom = (int) (clipRect.bottom * mVecs[3] + 0.5f);
-            t.setCrop(mLeash, mRect);
         }
     }
 }

libs/WindowManager/Shell/src/com/android/wm/shell/activityembedding/ActivityEmbeddingAnimationSpec.java

@@ -26,7 +26,6 @@ import android.view.animation.AlphaAnimation;
 import android.view.animation.Animation;
 import android.view.animation.AnimationSet;
 import android.view.animation.AnimationUtils;
-import android.view.animation.ClipRectAnimation;
 import android.view.animation.Interpolator;
 import android.view.animation.LinearInterpolator;
 import android.view.animation.ScaleAnimation;
@@ -189,14 +188,6 @@ class ActivityEmbeddingAnimationSpec {
                 startBounds.top - endBounds.top, 0);
         endTranslate.setDuration(CHANGE_ANIMATION_DURATION);
         endSet.addAnimation(endTranslate);
-        // The end leash is resizing, we should update the window crop based on the clip rect.
-        final Rect startClip = new Rect(startBounds);
-        final Rect endClip = new Rect(endBounds);
-        startClip.offsetTo(0, 0);
-        endClip.offsetTo(0, 0);
-        final Animation clipAnim = new ClipRectAnimation(startClip, endClip);
-        clipAnim.setDuration(CHANGE_ANIMATION_DURATION);
-        endSet.addAnimation(clipAnim);
         endSet.initialize(startBounds.width(), startBounds.height(), parentBounds.width(),
                 parentBounds.height());
         endSet.scaleCurrentDuration(mTransitionAnimationScaleSetting);

tests/FlickerTests/src/com/android/server/wm/flicker/activityembedding/ActivityEmbeddingTestBase.kt

@@ -17,9 +17,12 @@
 package com.android.server.wm.flicker.activityembedding
 
 import android.tools.device.flicker.legacy.LegacyFlickerTest
+import android.platform.test.annotations.Presubmit
+import android.tools.common.traces.component.ComponentNameMatcher
 import com.android.server.wm.flicker.BaseTest
 import com.android.server.wm.flicker.helpers.ActivityEmbeddingAppHelper
 import org.junit.Before
+import org.junit.Test
 
 abstract class ActivityEmbeddingTestBase(flicker: LegacyFlickerTest) : BaseTest(flicker) {
     val testApp = ActivityEmbeddingAppHelper(instrumentation)
@@ -29,4 +32,14 @@ abstract class ActivityEmbeddingTestBase(flicker: LegacyFlickerTest) : BaseTest(
         // The test should only be run on devices that support ActivityEmbedding.
         ActivityEmbeddingAppHelper.assumeActivityEmbeddingSupportedDevice()
     }
+
+    /** Asserts the background animation layer is never visible during bounds change transition. */
+    @Presubmit
+    @Test
+    fun backgroundLayerNeverVisible() {
+        val backgroundColorLayer = ComponentNameMatcher("", "Animation Background")
+        flicker.assertLayers {
+            isInvisible(backgroundColorLayer)
+        }
+    }
 }

tests/FlickerTests/src/com/android/server/wm/flicker/activityembedding/layoutchange/HorizontalSplitChangeRatioTest.kt

@@ -0,0 +1,152 @@
+/*
+ * Copyright (C) 2023 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.server.wm.flicker.activityembedding
+
+import android.platform.test.annotations.Presubmit
+import android.tools.common.datatypes.Rect
+import android.tools.device.flicker.junit.FlickerParametersRunnerFactory
+import android.tools.device.flicker.legacy.FlickerBuilder
+import android.tools.device.flicker.legacy.LegacyFlickerTest
+import android.tools.device.flicker.legacy.LegacyFlickerTestFactory
+import com.android.server.wm.flicker.helpers.ActivityEmbeddingAppHelper
+import androidx.test.filters.RequiresDevice
+import org.junit.FixMethodOrder
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.junit.runners.MethodSorters
+import org.junit.runners.Parameterized
+
+/**
+ * Test changing split ratio at runtime on a horizona split.
+ *
+ * Setup: Launch A|B in horizontal split with B being the secondary activity, by default A and B
+ * windows are equal in size. B is on the top and A is on the bottom.
+ * Transitions:
+ * Change the split ratio to A:B=0.7:0.3, expect bounds change for both A and B.
+ *
+ * To run this test: `atest FlickerTests:HorizontalSplitChangeRatioTest`
+ */
+@RequiresDevice
+@RunWith(Parameterized::class)
+@Parameterized.UseParametersRunnerFactory(FlickerParametersRunnerFactory::class)
+@FixMethodOrder(MethodSorters.NAME_ASCENDING)
+class HorizontalSplitChangeRatioTest(flicker: LegacyFlickerTest) :
+        ActivityEmbeddingTestBase(flicker) {
+    /** {@inheritDoc} */
+    override val transition: FlickerBuilder.() -> Unit = {
+        setup {
+            tapl.setExpectedRotationCheckEnabled(false)
+            testApp.launchViaIntent(wmHelper)
+            testApp.launchSecondaryActivityHorizontally(wmHelper)
+            startDisplayBounds =
+                    wmHelper.currentState.layerState.physicalDisplayBounds
+                            ?: error("Display not found")
+        }
+        transitions {
+            testApp.changeSecondaryActivityRatio(wmHelper)
+        }
+        teardown {
+            tapl.goHome()
+            testApp.exit(wmHelper)
+        }
+    }
+
+    /** Assert the Main activity window is always visible. */
+    @Presubmit
+    @Test
+    fun mainActivityWindowIsAlwaysVisible() {
+        flicker.assertWm { isAppWindowVisible(ActivityEmbeddingAppHelper.MAIN_ACTIVITY_COMPONENT) }
+    }
+
+    /** Assert the Main activity window is always visible. */
+    @Presubmit
+    @Test
+    fun mainActivityLayerIsAlwaysVisible() {
+        flicker.assertLayers { isVisible(ActivityEmbeddingAppHelper.MAIN_ACTIVITY_COMPONENT) }
+    }
+
+    /** Assert the Secondary activity window is always visible. */
+    @Presubmit
+    @Test
+    fun secondaryActivityWindowIsAlwaysVisible() {
+        flicker.assertWm {
+            isAppWindowVisible(ActivityEmbeddingAppHelper.SECONDARY_ACTIVITY_COMPONENT) }
+    }
+
+    /** Assert the Secondary activity window is always visible. */
+    @Presubmit
+    @Test
+    fun secondaryActivityLayerIsAlwaysVisible() {
+        flicker.assertLayers { isVisible(ActivityEmbeddingAppHelper.SECONDARY_ACTIVITY_COMPONENT) }
+    }
+
+    /** Assert the Main and Secondary activity change height during the transition. */
+    @Presubmit
+    @Test
+    fun secondaryActivityAdjustsHeightRuntime() {
+        flicker.assertLayersStart {
+            val topLayerRegion =
+                    this.visibleRegion(ActivityEmbeddingAppHelper.SECONDARY_ACTIVITY_COMPONENT)
+            val bottomLayerRegion =
+                    this.visibleRegion(ActivityEmbeddingAppHelper.MAIN_ACTIVITY_COMPONENT)
+            // Compare dimensions of two splits, given we're using default split attributes,
+            // both activities take up the same visible size on the display.
+            check { "height" }
+                    .that(topLayerRegion.region.height).isEqual(bottomLayerRegion.region.height)
+            check { "width" }
+                    .that(topLayerRegion.region.width).isEqual(bottomLayerRegion.region.width)
+            topLayerRegion.notOverlaps(bottomLayerRegion.region)
+            // Layers of two activities sum to be fullscreen size on display.
+            topLayerRegion.plus(bottomLayerRegion.region).coversExactly(startDisplayBounds)
+        }
+
+        flicker.assertLayersEnd {
+            val topLayerRegion =
+                    this.visibleRegion(ActivityEmbeddingAppHelper.SECONDARY_ACTIVITY_COMPONENT)
+            val bottomLayerRegion =
+                    this.visibleRegion(ActivityEmbeddingAppHelper.MAIN_ACTIVITY_COMPONENT)
+            // Compare dimensions of two splits, given we're using default split attributes,
+            // both activities take up the same visible size on the display.
+            check { "height" }
+                    .that(topLayerRegion.region.height).isLower(bottomLayerRegion.region.height)
+            check { "height" }
+                    .that(
+                            topLayerRegion.region.height / 0.3f -
+                                    bottomLayerRegion.region.height / 0.7f)
+                    .isLower(0.1f)
+            check { "width" }
+                    .that(topLayerRegion.region.width).isEqual(bottomLayerRegion.region.width)
+            topLayerRegion.notOverlaps(bottomLayerRegion.region)
+            // Layers of two activities sum to be fullscreen size on display.
+            topLayerRegion.plus(bottomLayerRegion.region).coversExactly(startDisplayBounds)
+        }
+    }
+
+    companion object {
+        /** {@inheritDoc} */
+        private var startDisplayBounds = Rect.EMPTY
+        /**
+         * Creates the test configurations.
+         *
+         * See [LegacyFlickerTestFactory.nonRotationTests] for configuring screen orientation and
+         * navigation modes.
+         */
+        @Parameterized.Parameters(name = "{0}")
+        @JvmStatic
+        fun getParams() = LegacyFlickerTestFactory.nonRotationTests()
+    }
+}

tests/FlickerTests/src/com/android/server/wm/flicker/activityembedding/open/OpenThirdActivityOverSplitTest.kt

@@ -142,14 +142,6 @@ class OpenThirdActivityOverSplitTest(flicker: LegacyFlickerTest) :
         }
     }
 
-    /** Assert the background animation layer is never visible during transition. */
-    @Presubmit
-    @Test
-    fun backgroundLayerNeverVisible() {
-        val backgroundColorLayer = ComponentNameMatcher("", "Animation Background")
-        flicker.assertLayers { isInvisible(backgroundColorLayer) }
-    }
-
     companion object {
         /** {@inheritDoc} */
         private var startDisplayBounds = Rect.EMPTY

tests/FlickerTests/src/com/android/server/wm/flicker/helpers/ActivityEmbeddingAppHelper.kt

@@ -45,18 +45,22 @@ constructor(
      * based on the split pair rule.
      */
     fun launchSecondaryActivity(wmHelper: WindowManagerStateHelper) {
-        val launchButton =
+        launchSecondaryActivityFromButton(wmHelper, "launch_secondary_activity_button")
-            uiDevice.wait(
+    }
-                Until.findObject(By.res(getPackage(), "launch_secondary_activity_button")),
+
-                FIND_TIMEOUT
+    /**
-            )
+     * Clicks the button to launch the secondary activity in RTL, which should split with the main
-        require(launchButton != null) { "Can't find launch secondary activity button on screen." }
+     * activity based on the split pair rule.
-        launchButton.click()
+     */
-        wmHelper
+    fun launchSecondaryActivityRTL(wmHelper: WindowManagerStateHelper) {
-            .StateSyncBuilder()
+        launchSecondaryActivityFromButton(wmHelper, "launch_secondary_activity_rtl_button")
-            .withActivityState(SECONDARY_ACTIVITY_COMPONENT, PlatformConsts.STATE_RESUMED)
+    }
-            .withActivityState(MAIN_ACTIVITY_COMPONENT, PlatformConsts.STATE_RESUMED)
+
-            .waitForAndVerify()
+    /**
+     * Clicks the button to launch the secondary activity in a horizontal split.
+     */
+    fun launchSecondaryActivityHorizontally(wmHelper: WindowManagerStateHelper) {
+        launchSecondaryActivityFromButton(wmHelper, "launch_secondary_activity_horizontally_button")
     }
 
     /** Clicks the button to launch a third activity over a secondary activity. */
@@ -113,6 +117,28 @@ constructor(
                 .waitForAndVerify()
      }
 
+    /**
+     * Clicks the button to toggle the split ratio of secondary activity.
+     */
+    fun changeSecondaryActivityRatio(wmHelper: WindowManagerStateHelper) {
+        val launchButton =
+                uiDevice.wait(
+                        Until.findObject(
+                                By.res(getPackage(),
+                                        "toggle_split_ratio_button")),
+                        FIND_TIMEOUT
+                )
+        require(launchButton != null) {
+            "Can't find toggle ratio for secondary activity button on screen."
+        }
+        launchButton.click()
+        wmHelper
+                .StateSyncBuilder()
+                .withAppTransitionIdle()
+                .withTransitionSnapshotGone()
+                .waitForAndVerify()
+    }
+
     fun secondaryActivityEnterPip(wmHelper: WindowManagerStateHelper) {
         val pipButton =
                 uiDevice.wait(
@@ -149,18 +175,12 @@ constructor(
             .waitForAndVerify()
     }
 
-    /**
+    private fun launchSecondaryActivityFromButton(
-     * Clicks the button to launch the secondary activity in RTL, which should split with the main
+            wmHelper: WindowManagerStateHelper, buttonName: String) {
-     * activity based on the split pair rule.
-     */
-    fun launchSecondaryActivityRTL(wmHelper: WindowManagerStateHelper) {
         val launchButton =
-            uiDevice.wait(
+                uiDevice.wait(Until.findObject(By.res(getPackage(), buttonName)), FIND_TIMEOUT)
-                Until.findObject(By.res(getPackage(), "launch_secondary_activity_rtl_button")),
-                FIND_TIMEOUT
-            )
         require(launchButton != null) {
-            "Can't find launch secondary activity rtl button on screen."
+            "Can't find launch secondary activity button : " + buttonName + "on screen."
         }
         launchButton.click()
         wmHelper

tests/FlickerTests/test-apps/flickerapp/res/layout/activity_embedding_main_layout.xml

@@ -37,6 +37,14 @@
         android:tag="RIGHT_TO_LEFT"
         android:text="Launch Secondary Activity in RTL" />
 
+    <Button
+        android:id="@+id/launch_secondary_activity_horizontally_button"
+        android:layout_width="wrap_content"
+        android:layout_height="48dp"
+        android:onClick="launchSecondaryActivity"
+        android:tag="BOTTOM_TO_TOP"
+        android:text="Launch Secondary Activity Horizontally" />
+
     <Button
         android:id="@+id/launch_placeholder_split_button"
         android:layout_width="wrap_content"

tests/FlickerTests/test-apps/flickerapp/res/layout/activity_embedding_secondary_activity_layout.xml

@@ -35,6 +35,14 @@
       android:onClick="launchThirdActivity"
       android:text="Launch a third activity" />
 
+  <ToggleButton
+      android:id="@+id/toggle_split_ratio_button"
+      android:layout_width="wrap_content"
+      android:layout_height="48dp"
+      android:textOn="Ratio 0.5"
+      android:textOff="Ratio 0.3"
+      android:checked="false" />
+
   <Button
       android:id="@+id/secondary_enter_pip_button"
       android:layout_width="wrap_content"

tests/FlickerTests/test-apps/flickerapp/src/com/android/server/wm/flicker/testapp/ActivityEmbeddingMainActivity.java

@@ -22,6 +22,7 @@ import android.content.Intent;
 import android.os.Bundle;
 import android.view.View;
 
+import androidx.annotation.NonNull;
 import androidx.window.embedding.ActivityFilter;
 import androidx.window.embedding.ActivityRule;
 import androidx.window.embedding.EmbeddingAspectRatio;
@@ -152,6 +153,9 @@ public class ActivityEmbeddingMainActivity extends Activity {
         if (layoutDirectionStr.equals(LayoutDirection.LEFT_TO_RIGHT.toString())) {
             return LayoutDirection.LEFT_TO_RIGHT;
         }
+        if (layoutDirectionStr.equals(LayoutDirection.BOTTOM_TO_TOP.toString())) {
+            return LayoutDirection.BOTTOM_TO_TOP;
+        }
         if (layoutDirectionStr.equals(LayoutDirection.RIGHT_TO_LEFT.toString())) {
             return LayoutDirection.RIGHT_TO_LEFT;
         }

tests/FlickerTests/test-apps/flickerapp/src/com/android/server/wm/flicker/testapp/ActivityEmbeddingSecondaryActivity.java

@@ -22,6 +22,11 @@ import android.app.PictureInPictureParams;
 import android.graphics.Color;
 import android.os.Bundle;
 import android.view.View;
+import android.widget.ToggleButton;
+
+import androidx.window.embedding.SplitAttributes;
+import androidx.window.embedding.SplitAttributesCalculatorParams;
+import androidx.window.embedding.SplitController;
 
 /**
  * Activity to be used as the secondary activity to split with
@@ -29,6 +34,8 @@ import android.view.View;
  */
 public class ActivityEmbeddingSecondaryActivity extends Activity {
 
+    private SplitController mSplitController;
+
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -41,6 +48,27 @@ public class ActivityEmbeddingSecondaryActivity extends Activity {
                         finish();
                     }
                 });
+        mSplitController = SplitController.getInstance(this);
+        final ToggleButton splitRatio = findViewById(R.id.toggle_split_ratio_button);
+        mSplitController.setSplitAttributesCalculator(params -> {
+            return new SplitAttributes.Builder()
+                    .setSplitType(
+                            SplitAttributes.SplitType.ratio(
+                                    splitRatio.isChecked() ? 0.7f : 0.5f)
+                    )
+                    .setLayoutDirection(
+                            params.getDefaultSplitAttributes()
+                                    .getLayoutDirection())
+                    .build();
+        });
+        splitRatio.setOnClickListener(
+                new View.OnClickListener() {
+                    @Override
+                    public void onClick(View v) {
+                        // This triggers a recalcuation of splitatributes.
+                        mSplitController.invalidateTopVisibleSplitAttributes();
+                    }
+        });
         findViewById(R.id.secondary_enter_pip_button).setOnClickListener(
                 new View.OnClickListener() {
                     @Override