APIs for activity to know when its windowing/pip modes change

Added APIs that allow activities to ask the system if they are currently
in multi-window or picture-in-picture mode and also get notified when
their modes change.

Bug: 25509834
Bug: 25683717
Change-Id: I4b8c316a49940bd6a8b31a93b345f9fd725a4721

1 files changed, 42 insertions, 0 deletions

diff --git a/core/java/android/app/ApplicationThreadNative.java b/core/java/android/app/ApplicationThreadNative.java
index 44387deaddc1..5951c8d9c958 100644
--- a/core/java/android/app/ApplicationThreadNative.java
+++ b/core/java/android/app/ApplicationThreadNative.java
@@ -720,6 +720,24 @@ public abstract class ApplicationThreadNative extends Binder
             return true;
         }
 
+        case SCHEDULE_MULTI_WINDOW_MODE_CHANGED_TRANSACTION:
+        {
+            data.enforceInterface(IApplicationThread.descriptor);
+            final IBinder b = data.readStrongBinder();
+            final boolean multiWindowMode = data.readInt() != 0;
+            scheduleMultiWindowModeChanged(b, multiWindowMode);
+            return true;
+        }
+
+        case SCHEDULE_PICTURE_IN_PICTURE_MODE_CHANGED_TRANSACTION:
+        {
+            data.enforceInterface(IApplicationThread.descriptor);
+            final IBinder b = data.readStrongBinder();
+            final boolean pipMode = data.readInt() != 0;
+            schedulePictureInPictureModeChanged(b, pipMode);
+            return true;
+        }
+
         }
 
         return super.onTransact(code, data, reply, flags);
@@ -1454,4 +1472,28 @@ class ApplicationThreadProxy implements IApplicationThread {
                 IBinder.FLAG_ONEWAY);
         data.recycle();
     }
+
+    @Override
+    public final void scheduleMultiWindowModeChanged(
+            IBinder token, boolean multiWindowMode) throws RemoteException {
+        Parcel data = Parcel.obtain();
+        data.writeInterfaceToken(IApplicationThread.descriptor);
+        data.writeStrongBinder(token);
+        data.writeInt(multiWindowMode ? 1 : 0);
+        mRemote.transact(SCHEDULE_MULTI_WINDOW_MODE_CHANGED_TRANSACTION, data, null,
+                IBinder.FLAG_ONEWAY);
+        data.recycle();
+    }
+
+    @Override
+    public final void schedulePictureInPictureModeChanged(IBinder token, boolean pipMode)
+            throws RemoteException {
+        Parcel data = Parcel.obtain();
+        data.writeInterfaceToken(IApplicationThread.descriptor);
+        data.writeStrongBinder(token);
+        data.writeInt(pipMode ? 1 : 0);
+        mRemote.transact(SCHEDULE_PICTURE_IN_PICTURE_MODE_CHANGED_TRANSACTION, data, null,
+                IBinder.FLAG_ONEWAY);
+        data.recycle();
+    }
 }