Add support for secure views.
Added the MotionEvent.FLAG_WINDOW_IS_OBSCURED flag which is set by the
input manager whenever another visible window is partly or wholly obscured
the target of a touch event so that applications can filter touches
accordingly.
Added a "filterTouchesWhenObscured" attribute to View which can be used to
enable filtering of touches when the view's window is obscured.
Change-Id: I936d9c85013fd2d77fb296a600528d30a29027d2
diff --git a/native/include/android/input.h b/native/include/android/input.h
index 5b62da4..9da122b 100644
--- a/native/include/android/input.h
+++ b/native/include/android/input.h
@@ -247,6 +247,22 @@
};
/*
+ * Motion event flags.
+ */
+enum {
+ /* This flag indicates that the window that received this motion event is partly
+ * or wholly obscured by another visible window above it. This flag is set to true
+ * even if the event did not directly pass through the obscured area.
+ * A security sensitive application can check this flag to identify situations in which
+ * a malicious application may have covered up part of its content for the purpose
+ * of misleading the user or hijacking touches. An appropriate response might be
+ * to drop the suspect touches or to take additional precautions to confirm the user's
+ * actual intent.
+ */
+ AMOTION_EVENT_FLAG_WINDOW_IS_OBSCURED = 0x1,
+};
+
+/*
* Motion event edge touch flags.
*/
enum {
@@ -395,6 +411,9 @@
/* Get the combined motion event action code and pointer index. */
int32_t AMotionEvent_getAction(const AInputEvent* motion_event);
+/* Get the motion event flags. */
+int32_t AMotionEvent_getFlags(const AInputEvent* motion_event);
+
/* Get the state of any meta / modifier keys that were in effect when the
* event was generated. */
int32_t AMotionEvent_getMetaState(const AInputEvent* motion_event);