Rounded corners on app transitions

Test: Manualy launch an app
Test: Press home when activity is on top of the stack
Test: Quick scrub
Test: Swipe up on the home button, swipe down
Bug: 111514493
Fixes: 116745318
Change-Id: I66d25bc433061ede46107ea9651c198614306692
(cherry picked from commit faa443308ef4de1be482d7d033209d8d6d8cff7b)

7 files changed, 50 insertions, 9 deletions

diff --git a/quickstep/src/com/android/quickstep/ActivityControlHelper.java b/quickstep/src/com/android/quickstep/ActivityControlHelper.java
index b96f9f067..d78ba9c9f 100644
--- a/quickstep/src/com/android/quickstep/ActivityControlHelper.java
+++ b/quickstep/src/com/android/quickstep/ActivityControlHelper.java
@@ -332,7 +332,7 @@ public interface ActivityControlHelper<T extends BaseDraggingActivity> {
             float prevRvScale = recentsView.getScaleX();
             float targetRvScale = endState.getOverviewScaleAndTranslationYFactor(launcher)[0];
             SCALE_PROPERTY.set(recentsView, targetRvScale);
-            ClipAnimationHelper clipHelper = new ClipAnimationHelper();
+            ClipAnimationHelper clipHelper = new ClipAnimationHelper(launcher);
             clipHelper.fromTaskThumbnailView(v.getThumbnail(), (RecentsView) v.getParent(), null);
             SCALE_PROPERTY.set(recentsView, prevRvScale);
 
diff --git a/quickstep/src/com/android/quickstep/OverviewCommandHelper.java b/quickstep/src/com/android/quickstep/OverviewCommandHelper.java
index f8f09055f..61bb75f85 100644
--- a/quickstep/src/com/android/quickstep/OverviewCommandHelper.java
+++ b/quickstep/src/com/android/quickstep/OverviewCommandHelper.java
@@ -326,7 +326,7 @@ public class OverviewCommandHelper {
                 return anim;
             }
 
-            final ClipAnimationHelper clipHelper = new ClipAnimationHelper();
+            final ClipAnimationHelper clipHelper = new ClipAnimationHelper(mActivity);
 
             // At this point, the activity is already started and laid-out. Get the home-bounds
             // relative to the screen using the rootView of the activity.
diff --git a/quickstep/src/com/android/quickstep/RecentsActivity.java b/quickstep/src/com/android/quickstep/RecentsActivity.java
index 9d01f7447..deedd324a 100644
--- a/quickstep/src/com/android/quickstep/RecentsActivity.java
+++ b/quickstep/src/com/android/quickstep/RecentsActivity.java
@@ -183,7 +183,7 @@ public class RecentsActivity extends BaseDraggingActivity {
             RemoteAnimationTargetCompat[] targets) {
         AnimatorSet target = new AnimatorSet();
         boolean activityClosing = taskIsATargetWithMode(targets, getTaskId(), MODE_CLOSING);
-        ClipAnimationHelper helper = new ClipAnimationHelper();
+        ClipAnimationHelper helper = new ClipAnimationHelper(this);
         target.play(getRecentsWindowAnimator(taskView, !activityClosing, targets, helper)
                 .setDuration(RECENTS_LAUNCH_DURATION));
 
diff --git a/quickstep/src/com/android/quickstep/RecentsModel.java b/quickstep/src/com/android/quickstep/RecentsModel.java
index 2e4d4d2b8..a62e6adfa 100644
--- a/quickstep/src/com/android/quickstep/RecentsModel.java
+++ b/quickstep/src/com/android/quickstep/RecentsModel.java
@@ -45,6 +45,9 @@ import androidx.annotation.WorkerThread;
  */
 @TargetApi(Build.VERSION_CODES.O)
 public class RecentsModel extends TaskStackChangeListener {
+
+    private static final String TAG = "RecentsModel";
+
     // We do not need any synchronization for this variable as its only written on UI thread.
     public static final MainThreadInitializedObject<RecentsModel> INSTANCE =
             new MainThreadInitializedObject<>(c -> new RecentsModel(c));
@@ -62,6 +65,9 @@ public class RecentsModel extends TaskStackChangeListener {
     private final TaskIconCache mIconCache;
     private final TaskThumbnailCache mThumbnailCache;
 
+    private float mWindowCornerRadius = -1;
+
+
     private RecentsModel(Context context) {
         mContext = context;
 
@@ -174,6 +180,26 @@ public class RecentsModel extends TaskStackChangeListener {
         return mSystemUiProxy;
     }
 
+    public float getWindowCornerRadius() {
+        // The window corner radius is expressed in pixels and won't change if the
+        // display density changes. It's safe to cache the value.
+        if (mWindowCornerRadius == -1) {
+            if (mSystemUiProxy != null) {
+                try {
+                    mWindowCornerRadius = mSystemUiProxy.getWindowCornerRadius();
+                } catch (RemoteException e) {
+                    Log.w(TAG, "Connection to ISystemUIProxy was lost, ignoring window corner "
+                            + "radius");
+                    return 0;
+                }
+            } else {
+                Log.w(TAG, "ISystemUIProxy is null, ignoring window corner radius");
+                return 0;
+            }
+        }
+        return mWindowCornerRadius;
+    }
+
     public void onTrimMemory(int level) {
         if (level == ComponentCallbacks2.TRIM_MEMORY_UI_HIDDEN) {
             mThumbnailCache.getHighResLoadingState().setVisible(false);
diff --git a/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java b/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java
index fe3300d36..f4b2febe7 100644
--- a/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java
+++ b/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java
@@ -175,7 +175,7 @@ public class WindowTransformSwipeHandler<T extends BaseDraggingActivity> {
     private static final float SWIPE_DURATION_MULTIPLIER =
             Math.min(1 / MIN_PROGRESS_FOR_OVERVIEW, 1 / (1 - MIN_PROGRESS_FOR_OVERVIEW));
 
-    private final ClipAnimationHelper mClipAnimationHelper = new ClipAnimationHelper();
+    private final ClipAnimationHelper mClipAnimationHelper;
 
     protected Runnable mGestureEndCallback;
     protected boolean mIsGoingToHome;
@@ -255,6 +255,7 @@ public class WindowTransformSwipeHandler<T extends BaseDraggingActivity> {
         mTouchInteractionLog = touchInteractionLog;
         mRecentsAnimationWrapper = new RecentsAnimationWrapper(inputConsumer,
                 this::createNewTouchProxyHandler);
+        mClipAnimationHelper = new ClipAnimationHelper(context);
 
         initStateCallbacks();
     }
diff --git a/quickstep/src/com/android/quickstep/util/ClipAnimationHelper.java b/quickstep/src/com/android/quickstep/util/ClipAnimationHelper.java
index 57a0e8f8f..f25424494 100644
--- a/quickstep/src/com/android/quickstep/util/ClipAnimationHelper.java
+++ b/quickstep/src/com/android/quickstep/util/ClipAnimationHelper.java
@@ -21,6 +21,7 @@ import static com.android.systemui.shared.system.RemoteAnimationTargetCompat.MOD
 import static com.android.systemui.shared.system.RemoteAnimationTargetCompat.MODE_OPENING;
 
 import android.annotation.TargetApi;
+import android.content.Context;
 import android.graphics.Canvas;
 import android.graphics.Matrix;
 import android.graphics.Matrix.ScaleToFit;
@@ -31,6 +32,8 @@ import android.os.Build;
 import android.os.RemoteException;
 import android.view.animation.Interpolator;
 
+import androidx.annotation.Nullable;
+
 import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.R;
@@ -50,8 +53,6 @@ import com.android.systemui.shared.system.WindowManagerWrapper;
 
 import java.util.function.BiFunction;
 
-import androidx.annotation.Nullable;
-
 /**
  * Utility class to handle window clip animation
  */
@@ -82,6 +83,10 @@ public class ClipAnimationHelper {
     private final Matrix mTmpMatrix = new Matrix();
     private final RectF mTmpRectF = new RectF();
     private final RectF mCurrentRectWithInsets = new RectF();
+    // Corner radius of windows, in pixels
+    private final float mWindowCornerRadius;
+    // Corner radius of windows when they're in overview mode.
+    private final float mTaskCornerRadius;
 
     private float mTargetScale = 1f;
     private float mOffsetScale = 1f;
@@ -95,6 +100,11 @@ public class ClipAnimationHelper {
     private BiFunction<RemoteAnimationTargetCompat, Float, Float> mTaskAlphaCallback =
             (t, a1) -> a1;
 
+    public ClipAnimationHelper(Context context) {
+        mTaskCornerRadius = context.getResources().getDimension(R.dimen.task_corner_radius);
+        mWindowCornerRadius  = RecentsModel.INSTANCE.get(context).getWindowCornerRadius();
+    }
+
     private void updateSourceStack(RemoteAnimationTargetCompat target) {
         mSourceInsets.set(target.contentInsets);
         mSourceStackBounds.set(target.sourceContainerBounds);
@@ -168,11 +178,15 @@ public class ClipAnimationHelper {
             Rect crop = app.sourceContainerBounds;
             float alpha = 1f;
             int layer;
+            float cornerRadius = 0f;
             if (app.mode == targetSet.targetMode) {
                 if (app.activityType != RemoteAnimationTargetCompat.ACTIVITY_TYPE_HOME) {
                     mTmpMatrix.setRectToRect(mSourceRect, currentRect, ScaleToFit.FILL);
                     mTmpMatrix.postTranslate(app.position.x, app.position.y);
                     mClipRectF.roundOut(crop);
+                    float scale = crop.width() / currentRect.width();
+                    cornerRadius = Utilities.mapRange(progress, mWindowCornerRadius,
+                            mTaskCornerRadius * scale);
                 }
 
                 if (app.isNotInRecents
@@ -186,7 +200,7 @@ public class ClipAnimationHelper {
                 crop = null;
                 layer = Integer.MAX_VALUE;
             }
-            params[i] = new SurfaceParams(app.leash, alpha, mTmpMatrix, crop, layer);
+            params[i] = new SurfaceParams(app.leash, alpha, mTmpMatrix, crop, layer, cornerRadius);
         }
         applyParams(syncTransactionApplier, params);
         return currentRect;
@@ -315,7 +329,7 @@ public class ClipAnimationHelper {
                 -mSourceWindowClipInsets.top * insetProgress,
                 ttv.getMeasuredWidth() + mSourceWindowClipInsets.right * insetProgress,
                 ttv.getMeasuredHeight() + mSourceWindowClipInsets.bottom * insetProgress,
-                ttv.getCornerRadius() * progress);
+                Utilities.mapRange(progress, mWindowCornerRadius, ttv.getCornerRadius()));
     }
 
     public RectF getTargetRect() {
diff --git a/quickstep/src/com/android/quickstep/util/TaskViewDrawable.java b/quickstep/src/com/android/quickstep/util/TaskViewDrawable.java
index 48b07a714..6ee305f80 100644
--- a/quickstep/src/com/android/quickstep/util/TaskViewDrawable.java
+++ b/quickstep/src/com/android/quickstep/util/TaskViewDrawable.java
@@ -71,7 +71,7 @@ public class TaskViewDrawable extends Drawable {
         Utilities.getDescendantCoordRelativeToAncestor(mIconView, parent, mIconPos, true);
 
         mThumbnailView = tv.getThumbnail();
-        mClipAnimationHelper = new ClipAnimationHelper();
+        mClipAnimationHelper = new ClipAnimationHelper(parent.getContext());
         mClipAnimationHelper.fromTaskThumbnailView(mThumbnailView, parent);
     }