Update input policy to handle embedded windows

ANR - If embedded windows are slow in handling inputs the system should blame the embedded app.

PointerDownOutsideFocus - if a user taps outside the currently focused window onto an
embedded window, treat it as if the host window was tapped.

Rename blessInputSurface -> grantInputChannel and add a name to embedded windows.

Bug: 134365580
Test: b WindowlessWmTest
Test: atest CtsWindowManagerDeviceTestCases:WindowlessWmTests

Change-Id: If88970cf6ce17669b41fec995535151a492fab12

1 files changed, 13 insertions, 2 deletions

diff --git a/core/java/android/view/ViewRootImpl.java b/core/java/android/view/ViewRootImpl.java
index 85bf19f855bb..97adaf57f9b4 100644
--- a/core/java/android/view/ViewRootImpl.java
+++ b/core/java/android/view/ViewRootImpl.java
@@ -69,6 +69,7 @@ import android.os.Build;
 import android.os.Bundle;
 import android.os.Debug;
 import android.os.Handler;
+import android.os.IBinder;
 import android.os.Looper;
 import android.os.Message;
 import android.os.ParcelFileDescriptor;
@@ -1661,7 +1662,7 @@ public final class ViewRootImpl implements ViewParent,
 
         return mBlastBufferQueue.getSurface();
     }
-    
+
     private void setBoundsLayerCrop() {
         // mWinFrame is already adjusted for surface insets. So offset it and use it as
         // the cropping bounds.
@@ -7179,7 +7180,7 @@ public final class ViewRootImpl implements ViewParent,
         if (mSurfaceControl.isValid()) {
             if (USE_BLAST_BUFFERQUEUE == false) {
                 mSurface.copyFrom(mSurfaceControl);
-            } else { 
+            } else {
                 mSurface.transferFrom(getOrCreateBLASTSurface(
                     (int) (mView.getMeasuredWidth() * appScale + 0.5f),
                     (int) (mView.getMeasuredHeight() * appScale + 0.5f)));
@@ -8932,6 +8933,16 @@ public final class ViewRootImpl implements ViewParent,
     }
 
     /**
+     * @return Returns a token used to identify the windows input channel.
+     */
+    public IBinder getInputToken() {
+        if (mInputEventReceiver == null) {
+            return null;
+        }
+        return mInputEventReceiver.getToken();
+    }
+
+    /**
      * Class for managing the accessibility interaction connection
      * based on the global accessibility state.
      */