Merge "Set DividerView accessibility embedded matrix to surface position" into rvc-dev

packages/SystemUI/src/com/android/systemui/stackdivider/DividerView.java

@@ -28,12 +28,14 @@ import android.animation.ValueAnimator;
 import android.annotation.Nullable;
 import android.content.Context;
 import android.content.res.Configuration;
+import android.graphics.Matrix;
 import android.graphics.Rect;
 import android.graphics.Region;
 import android.graphics.Region.Op;
 import android.hardware.display.DisplayManager;
 import android.os.Bundle;
 import android.os.Handler;
+import android.os.RemoteException;
 import android.util.AttributeSet;
 import android.util.Slog;
 import android.view.Display;
@@ -164,6 +166,9 @@ public class DividerView extends FrameLayout implements OnTouchListener,
     int mDividerPositionX;
     int mDividerPositionY;
 
+    private final Matrix mTmpMatrix = new Matrix();
+    private final float[] mTmpValues = new float[9];
+
     // The view is removed or in the process of been removed from the system.
     private boolean mRemoved;
 
@@ -249,6 +254,22 @@ public class DividerView extends FrameLayout implements OnTouchListener,
         }
     };
 
+    private Runnable mUpdateEmbeddedMatrix = () -> {
+        if (getViewRootImpl() == null) {
+            return;
+        }
+        if (isHorizontalDivision()) {
+            mTmpMatrix.setTranslate(0, mDividerPositionY - mDividerInsets);
+        } else {
+            mTmpMatrix.setTranslate(mDividerPositionX - mDividerInsets, 0);
+        }
+        mTmpMatrix.getValues(mTmpValues);
+        try {
+            getViewRootImpl().getAccessibilityEmbeddedConnection().setScreenMatrix(mTmpValues);
+        } catch (RemoteException e) {
+        }
+    };
+
     public DividerView(Context context) {
         this(context, null);
     }
@@ -1084,6 +1105,10 @@ public class DividerView extends FrameLayout implements OnTouchListener,
                 t.setPosition(dividerCtrl, mDividerPositionX - mDividerInsets, 0);
             }
         }
+        if (getViewRootImpl() != null) {
+            mHandler.removeCallbacks(mUpdateEmbeddedMatrix);
+            mHandler.post(mUpdateEmbeddedMatrix);
+        }
     }
 
     void setResizeDimLayer(Transaction t, boolean primary, float alpha) {