commit 78f97b3263053c388080a738b56499139517c3b6
author Vladislav Kaznacheev <kaznacheev@google.com> Thu Dec 15 18:14:58 2016 -0800
committer Vladislav Kaznacheev <kaznacheev@google.com> Wed Jan 25 16:04:57 2017 -0800
tree 1a6df0dd8f7144c31dd5a648de9676db982b3348
parent f70d82da86adc73eafb958b84038da39817ec79f

Support pointer capture in InputReader

When pointer capture is enabled, the pointer icon is hidden,
the pointer location is not changing, and CursorInputMapper
generates "captured" events with relative offsets instead of
absolute positions.

Captured events have their source set to a newly introduced
SOURCE_MOUSE_RELATIVE (of SOURCE_CLASS_TRACKBALL).

Test: InputReader_test --gtest_filter=
    CursorInputMapperTest.Process_PointerCapture

Bug: 30897034
Change-Id: Id30cb8e7edac56ab813e22a834cc44ab263d1003

include/android/input.h

diff --git a/include/android/input.h b/include/android/input.h
index f928c6e..0829989 100644
--- a/include/android/input.h
+++ b/include/android/input.h
@@ -835,6 +835,8 @@
     AINPUT_SOURCE_BLUETOOTH_STYLUS = 0x00008000 | AINPUT_SOURCE_STYLUS,
     /** trackball */
     AINPUT_SOURCE_TRACKBALL = 0x00010000 | AINPUT_SOURCE_CLASS_NAVIGATION,
+    /** mouse relative */
+    AINPUT_SOURCE_MOUSE_RELATIVE = 0x00020000 | AINPUT_SOURCE_CLASS_NAVIGATION,
     /** touchpad */
     AINPUT_SOURCE_TOUCHPAD = 0x00100000 | AINPUT_SOURCE_CLASS_POSITION,
     /** navigation */