Add tap/drag touchpad gesture.
The mapper sends a DOWN when the finger is released then starts
a short timer. If the finger is not pressed again before the timer
elapses, then the mapper sends an UP to complete the tap. If the
finger is pressed again then the mapper starts sending MOVEs
as part of a drag.
Double/triple taps work as intended because we also start watching
for a new tap when the finger is pressed again. If a new tap
occurs the old tap is also finished. So each individual finger
short press/release cycle constitutes a distinct tap.
Change-Id: Iaa51182edee4378162a66adfd746088e93af2a30
diff --git a/services/input/PointerController.h b/services/input/PointerController.h
index afd6371..b9184ac 100644
--- a/services/input/PointerController.h
+++ b/services/input/PointerController.h
@@ -91,6 +91,9 @@
// Tap at current location.
// Briefly display one spot at the tapped location.
SPOT_GESTURE_TAP,
+ // Drag at current location.
+ // Display spot at pressed location.
+ SPOT_GESTURE_DRAG,
// Button pressed but no finger is down.
// Display spot at pressed location.
SPOT_GESTURE_BUTTON_CLICK,