Use consumer to dispatch signal between Launcher & SysUI OPS Pip(8-2/N)

Since IPinnedStackAnimationListener.aidl is not able to move shell lib
Add a proxy in OPS dispatching callback to Launcher when PIP animation
started.

Bug: 161118569
Test: make SystemUI
Test: make ArcSystemUI
Test: lunch aosp_tv_arm-userdebug & make
Test: atest WindowManagerShellTests
Test: atest SystemUITests
Test: adb shell input keyevent 171(KEYCODE_WINDOW)
Test: manual test Pip demo AP
Test: adb shell dumpsys activity service com.android.systemui
Change-Id: I750c4f773c99c8e9230d11e710e1cc3796577df2

packages/SystemUI/src/com/android/systemui/pip/Pip.java

@@ -22,9 +22,9 @@ import android.media.session.MediaController;
 
 import com.android.systemui.pip.phone.PipTouchHandler;
 import com.android.systemui.pip.tv.PipController;
-import com.android.systemui.shared.recents.IPinnedStackAnimationListener;
 
 import java.io.PrintWriter;
+import java.util.function.Consumer;
 
 /**
  * Interface to engage picture in picture feature.
@@ -200,9 +200,9 @@ public interface Pip {
     /**
      * Registers the pinned stack animation listener.
      *
-     * @param listener The listener of pinned stack animation.
+     * @param callback The callback of pinned stack animation.
      */
-    default void setPinnedStackAnimationListener(IPinnedStackAnimationListener listener) {
+    default void setPinnedStackAnimationListener(Consumer<Boolean> callback) {
     }
 
     /**

packages/SystemUI/src/com/android/systemui/pip/phone/PipController.java

@@ -40,13 +40,13 @@ import com.android.systemui.dagger.SysUISingleton;
 import com.android.systemui.pip.Pip;
 import com.android.systemui.pip.PipBoundsHandler;
 import com.android.systemui.pip.PipTaskOrganizer;
-import com.android.systemui.shared.recents.IPinnedStackAnimationListener;
 import com.android.systemui.shared.system.PinnedStackListenerForwarder;
 import com.android.systemui.wmshell.WindowManagerShellWrapper;
 import com.android.wm.shell.common.DisplayChangeController;
 import com.android.wm.shell.common.DisplayController;
 
 import java.io.PrintWriter;
+import java.util.function.Consumer;
 
 /**
  * Manages the picture-in-picture (PIP) UI and states for Phones.
@@ -68,7 +68,7 @@ public class PipController implements Pip, PipTaskOrganizer.PipTransitionCallbac
     private PipBoundsHandler mPipBoundsHandler;
     private PipMediaController mMediaController;
     private PipTouchHandler mTouchHandler;
-    private IPinnedStackAnimationListener mPinnedStackAnimationRecentsListener;
+    private Consumer<Boolean> mPinnedStackAnimationRecentsCallback;
     private WindowManagerShellWrapper mWindowManagerShellWrapper;
 
     private boolean mIsInFixedRotation;
@@ -371,8 +371,8 @@ public class PipController implements Pip, PipTaskOrganizer.PipTransitionCallbac
     }
 
     @Override
-    public void setPinnedStackAnimationListener(IPinnedStackAnimationListener listener) {
-        mHandler.post(() -> mPinnedStackAnimationRecentsListener = listener);
+    public void setPinnedStackAnimationListener(Consumer<Boolean> callback) {
+        mHandler.post(() -> mPinnedStackAnimationRecentsCallback = callback);
     }
 
     @Override
@@ -384,12 +384,8 @@ public class PipController implements Pip, PipTaskOrganizer.PipTransitionCallbac
         }
         // Disable touches while the animation is running
         mTouchHandler.setTouchEnabled(false);
-        if (mPinnedStackAnimationRecentsListener != null) {
-            try {
-                mPinnedStackAnimationRecentsListener.onPinnedStackAnimationStarted();
-            } catch (RemoteException e) {
-                Log.e(TAG, "Failed to callback recents", e);
-            }
+        if (mPinnedStackAnimationRecentsCallback != null) {
+            mPinnedStackAnimationRecentsCallback.accept(true);
         }
     }
 

packages/SystemUI/src/com/android/systemui/recents/OverviewProxyService.java

@@ -102,6 +102,7 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.Optional;
 import java.util.function.BiConsumer;
+import java.util.function.Consumer;
 
 import javax.inject.Inject;
 
@@ -142,6 +143,7 @@ public class OverviewProxyService extends CurrentUserTracker implements
 
     private Region mActiveNavBarRegion;
 
+    private IPinnedStackAnimationListener mIPinnedStackAnimationListener;
     private IOverviewProxy mOverviewProxy;
     private int mConnectionBackoffAttempts;
     private boolean mBound;
@@ -158,7 +160,6 @@ public class OverviewProxyService extends CurrentUserTracker implements
 
     @VisibleForTesting
     public ISystemUiProxy mSysUiProxy = new ISystemUiProxy.Stub() {
-
         @Override
         public void startScreenPinning(int taskId) {
             if (!verifyCaller("startScreenPinning")) {
@@ -438,10 +439,11 @@ public class OverviewProxyService extends CurrentUserTracker implements
                         + mHasPipFeature);
                 return;
             }
+            mIPinnedStackAnimationListener = listener;
             long token = Binder.clearCallingIdentity();
             try {
                 mPipOptional.ifPresent(
-                        pip -> pip.setPinnedStackAnimationListener(listener));
+                        pip -> pip.setPinnedStackAnimationListener(mPinnedStackAnimationCallback));
             } finally {
                 Binder.restoreCallingIdentity(token);
             }
@@ -607,6 +609,8 @@ public class OverviewProxyService extends CurrentUserTracker implements
     private final StatusBarWindowCallback mStatusBarWindowCallback = this::onStatusBarStateChanged;
     private final BiConsumer<Rect, Rect> mSplitScreenBoundsChangeListener =
             this::notifySplitScreenBoundsChanged;
+    private final Consumer<Boolean> mPinnedStackAnimationCallback =
+            this::notifyPinnedStackAnimationStarted;
 
     // This is the death handler for the binder from the launcher service
     private final IBinder.DeathRecipient mOverviewServiceDeathRcpt
@@ -736,6 +740,17 @@ public class OverviewProxyService extends CurrentUserTracker implements
         }
     }
 
+    private void notifyPinnedStackAnimationStarted(Boolean isAnimationStarted) {
+        if (mIPinnedStackAnimationListener == null) {
+            return;
+        }
+        try {
+            mIPinnedStackAnimationListener.onPinnedStackAnimationStarted();
+        } catch (RemoteException e) {
+            Log.e(TAG_OPS, "Failed to call onPinnedStackAnimationStarted()", e);
+        }
+    }
+
     private void onStatusBarStateChanged(boolean keyguardShowing, boolean keyguardOccluded,
             boolean bouncerShowing) {
         mSysUiState.setFlag(SYSUI_STATE_STATUS_BAR_KEYGUARD_SHOWING,
@@ -766,7 +781,7 @@ public class OverviewProxyService extends CurrentUserTracker implements
 
     public void cleanupAfterDeath() {
         if (mInputFocusTransferStarted) {
-            mHandler.post(()-> {
+            mHandler.post(() -> {
                 mStatusBarOptionalLazy.ifPresent(statusBarLazy -> {
                     mInputFocusTransferStarted = false;
                     statusBarLazy.get().onInputFocusTransfer(false, true /* cancel */,