Create a drag shadow surface in app process,
Previoulsy a drag shadow surface is created in the system process. App needs
to call one more binder call (prepareDrag) to obtain the surface from
the system process.
The CL lets an app to create a drag shadow surface by itself. Then app
transfer the surface to system server by using reparent
API.
Bug: 70818582
Test: com.android.server.wm.DragDropControllerTests,
android.server.wm.CrossAppDragAndDropTests,
manually check the drag and drop behavior on test app.
Change-Id: I72796efffbefe78a802d7c441dea308d1cdea572
diff --git a/services/core/java/com/android/server/wm/DisplayContent.java b/services/core/java/com/android/server/wm/DisplayContent.java
index a8e00dd..77367db 100644
--- a/services/core/java/com/android/server/wm/DisplayContent.java
+++ b/services/core/java/com/android/server/wm/DisplayContent.java
@@ -3690,6 +3690,13 @@
.setParent(mOverlayLayer);
}
+ /**
+ * Reparents the given surface to mOverlayLayer.
+ */
+ void reparentToOverlay(Transaction transaction, SurfaceControl surface) {
+ transaction.reparent(surface, mOverlayLayer.getHandle());
+ }
+
void applyMagnificationSpec(MagnificationSpec spec) {
applyMagnificationSpec(getPendingTransaction(), spec);
getPendingTransaction().apply();