Update dock divider during recents animation.

- Move all wrapper calls to the bg thread
- Account for position now that the task leash is in the app animation
  layer

Bug: 73118672
Change-Id: I5b680a688c0ad4ca34c76e22e1d5cee24133f40f

quickstep/src/com/android/quickstep/RecentsAnimationWrapper.java

@@ -28,7 +28,9 @@ public class RecentsAnimationWrapper {
     public RecentsAnimationControllerCompat controller;
     public RemoteAnimationTargetCompat[] targets;
 
-    private boolean mInputConsumerEnabled;
+    private boolean mInputConsumerEnabled = false;
+    private boolean mBehindSystemBars = true;
+    private boolean mSplitScreenMinimized = false;
 
     public synchronized void setController(
             RecentsAnimationControllerCompat controller, RemoteAnimationTargetCompat[] targets) {
@@ -75,4 +77,42 @@ public class RecentsAnimationWrapper {
             });
         }
     }
+
+    public void setAnimationTargetsBehindSystemBars(boolean behindSystemBars) {
+        if (mBehindSystemBars == behindSystemBars) {
+            return;
+        }
+        mBehindSystemBars = behindSystemBars;
+        BackgroundExecutor.get().submit(() -> {
+            synchronized (this) {
+                TraceHelper.partitionSection("RecentsController",
+                        "Setting behind system bars on " + controller);
+                if (controller != null) {
+                    controller.setAnimationTargetsBehindSystemBars(behindSystemBars);
+                }
+            }
+        });
+    }
+
+    /**
+     * NOTE: As a workaround for conflicting animations (Launcher animating the task leash, and
+     * SystemUI resizing the docked stack, which resizes the task), we currently only set the
+     * minimized mode, and not the inverse.
+     * TODO: Synchronize the minimize animation with the launcher animation
+     */
+    public void setSplitScreenMinimizedForTransaction(boolean minimized) {
+        if (mSplitScreenMinimized || !minimized) {
+            return;
+        }
+        mSplitScreenMinimized = minimized;
+        BackgroundExecutor.get().submit(() -> {
+            synchronized (this) {
+                TraceHelper.partitionSection("RecentsController",
+                        "Setting minimize dock on " + controller);
+                if (controller != null) {
+                    controller.setSplitScreenMinimized(minimized);
+                }
+            }
+        });
+    }
 }

quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java

@@ -497,6 +497,7 @@ public class WindowTransformSwipeHandler<T extends BaseDraggingActivity> {
                 TransactionCompat transaction = new TransactionCompat();
                 for (RemoteAnimationTargetCompat app : mRecentsAnimationWrapper.targets) {
                     if (app.mode == MODE_CLOSING) {
+                        mTmpMatrix.postTranslate(app.position.x, app.position.y);
                         transaction.setMatrix(app.leash, mTmpMatrix)
                                 .setWindowCrop(app.leash, mClipRect);
 
@@ -534,10 +535,10 @@ public class WindowTransformSwipeHandler<T extends BaseDraggingActivity> {
                     }
                 }
                 if (mRecentsAnimationWrapper.controller != null) {
-
                     // TODO: This logic is spartanic!
-                    mRecentsAnimationWrapper.controller.setAnimationTargetsBehindSystemBars(
-                            shift < 0.12f);
+                    boolean passedThreshold = shift > 0.12f;
+                    mRecentsAnimationWrapper.setAnimationTargetsBehindSystemBars(!passedThreshold);
+                    mRecentsAnimationWrapper.setSplitScreenMinimizedForTransaction(passedThreshold);
                 }
             };
             if (Looper.getMainLooper() == Looper.myLooper()) {