commit af422a8c5b902831cbd2c97c71bbeed71604dd2e
author Robert Carr <racarr@google.com> Mon Apr 10 18:34:33 2017 -0700
committer Robert Carr <racarr@google.com> Wed Apr 12 21:40:30 2017 -0700
tree 9c92abafd73a73053911d38303b7610db044ea22
parent 068b429c340e9aa5935a76cff5eb52f8068f2f1c

Stack APPLICATION_MEDIA_OVERLAY windows with relative layering.

See accompanying frameworks/native commit
 "SurfaceFlinger: Add parent-less relative layering" for a full explanation.

Test: Manual of bug repro steps. Plus tests for new SurfaceControl functionality included in frameworks/native.
Bug: 36693738
Change-Id: Ic54598117c1f44a206d33f03d0cc463fbef43fcc

core/java/android/view/SurfaceControl.java

diff --git a/core/java/android/view/SurfaceControl.java b/core/java/android/view/SurfaceControl.java
index 1cb563f..3b15456 100644
--- a/core/java/android/view/SurfaceControl.java
+++ b/core/java/android/view/SurfaceControl.java
@@ -55,6 +55,8 @@
     private static native void nativeSetAnimationTransaction();
 
     private static native void nativeSetLayer(long nativeObject, int zorder);
+    private static native void nativeSetRelativeLayer(long nativeObject, IBinder relativeTo,
+            int zorder);
     private static native void nativeSetPosition(long nativeObject, float x, float y);
     private static native void nativeSetGeometryAppliesWithResize(long nativeObject);
     private static native void nativeSetSize(long nativeObject, int w, int h);
@@ -461,6 +463,11 @@
         nativeSetLayer(mNativeObject, zorder);
     }
 
+    public void setRelativeLayer(IBinder relativeTo, int zorder) {
+        checkNotReleased();
+        nativeSetRelativeLayer(mNativeObject, relativeTo, zorder);
+    }
+
     public void setPosition(float x, float y) {
         checkNotReleased();
         nativeSetPosition(mNativeObject, x, y);

core/jni/android_view_SurfaceControl.cpp

diff --git a/core/jni/android_view_SurfaceControl.cpp b/core/jni/android_view_SurfaceControl.cpp
index dc365b4..8b82314 100644
--- a/core/jni/android_view_SurfaceControl.cpp
+++ b/core/jni/android_view_SurfaceControl.cpp
@@ -289,6 +289,14 @@
     }
 }
 
+static void nativeSetRelativeLayer(JNIEnv* env, jclass clazz, jlong nativeObject,
+        jobject relativeTo, jint zorder) {
+    auto ctrl = reinterpret_cast<SurfaceControl *>(nativeObject);
+    sp<IBinder> handle = ibinderForJavaObject(env, relativeTo);
+
+    ctrl->setRelativeLayer(handle, zorder);
+}
+
 static void nativeSetPosition(JNIEnv* env, jclass clazz, jlong nativeObject, jfloat x, jfloat y) {
     SurfaceControl* const ctrl = reinterpret_cast<SurfaceControl *>(nativeObject);
     status_t err = ctrl->setPosition(x, y);
@@ -774,6 +782,8 @@
             (void*)nativeSetAnimationTransaction },
     {"nativeSetLayer", "(JI)V",
             (void*)nativeSetLayer },
+    {"nativeSetRelativeLayer", "(JLandroid/os/IBinder;I)V",
+            (void*)nativeSetRelativeLayer },
     {"nativeSetPosition", "(JFF)V",
             (void*)nativeSetPosition },
     {"nativeSetGeometryAppliesWithResize", "(J)V",