Input: Override touchable region bounds with surface bounds 2/2

Take advantage of the surface flinger layer hierarchy to set touchable
region.

- Let a client set a surface touchable region to its own bounds.
- Let a client set a surface touchable region to another surface bounds.
- Let a client bound its touchable region to a surface.

Test: go/wm-smoke
Test: existing tests

Change-Id: I447c93353d067a296007ba8f8341d2420b941d71

1 files changed, 4 insertions, 1 deletions

diff --git a/libs/input/InputWindow.cpp b/libs/input/InputWindow.cpp
index 5c5613df82..5a60347ed3 100644
--- a/libs/input/InputWindow.cpp
+++ b/libs/input/InputWindow.cpp
@@ -98,7 +98,8 @@ status_t InputWindowInfo::write(Parcel& output) const {
     output.writeInt32(portalToDisplayId);
     applicationInfo.write(output);
     output.write(touchableRegion);
-
+    output.writeBool(replaceTouchableRegionWithCrop);
+    output.writeWeakBinder(touchableRegionCropHandle);
     return OK;
 }
 
@@ -140,6 +141,8 @@ InputWindowInfo InputWindowInfo::read(const Parcel& from) {
     ret.portalToDisplayId = from.readInt32();
     ret.applicationInfo = InputApplicationInfo::read(from);
     from.read(ret.touchableRegion);
+    ret.replaceTouchableRegionWithCrop = from.readBool();
+    ret.touchableRegionCropHandle = from.readWeakBinder();
 
     return ret;
 }