[PATCH] add notify_motion_absolute for absolute motion devices

[U. Artie Eoff]

From: "U. Artie Eoff" <ullysses.a.eoff at intel.com>

Fixes https://bugs.freedesktop.org/show_bug.cgi?id=61997

Signed-off-by: U. Artie Eoff <ullysses.a.eoff at intel.com>
---
 src/compositor.c | 29 +++++++++++++++++++++++++----
 src/compositor.h |  7 ++++++-
 src/evdev.c      |  2 +-
 3 files changed, 32 insertions(+), 6 deletions(-)

diff --git a/src/compositor.c b/src/compositor.c
index b734f67..ce5c788 100644
--- a/src/compositor.c
+++ b/src/compositor.c
@@ -1783,16 +1783,13 @@ clip_pointer_motion(struct weston_seat *seat, wl_fixed_t *fx, wl_fixed_t *fy)
 }
 
 static void
-move_pointer(struct weston_seat *seat, wl_fixed_t dx, wl_fixed_t dy)
+move_pointer_absolute(struct weston_seat *seat, wl_fixed_t x, wl_fixed_t y)
 {
 	struct weston_compositor *ec = seat->compositor;
 	struct wl_pointer *pointer = seat->seat.pointer;
 	struct weston_output *output;
-	wl_fixed_t x, y;
 	int32_t ix, iy;
 
-	x = pointer->x + dx;
-	y = pointer->y + dy;
 	clip_pointer_motion(seat, &x, &y);
 
 	weston_seat_update_drag_surface(seat, x - pointer->x, y - pointer->y);
@@ -1819,6 +1816,13 @@ move_pointer(struct weston_seat *seat, wl_fixed_t dx, wl_fixed_t dy)
 	}
 }
 
+static void
+move_pointer(struct weston_seat *seat, wl_fixed_t dx, wl_fixed_t dy)
+{
+	struct wl_pointer *pointer = seat->seat.pointer;
+	move_pointer_absolute(seat, pointer->x + dx, pointer->y + dy);
+}
+
 WL_EXPORT void
 notify_motion(struct weston_seat *seat,
 	      uint32_t time, wl_fixed_t dx, wl_fixed_t dy)
@@ -1837,6 +1841,23 @@ notify_motion(struct weston_seat *seat,
 }
 
 WL_EXPORT void
+notify_motion_absolute(struct weston_seat *seat,
+	      uint32_t time, wl_fixed_t x, wl_fixed_t y)
+{
+	const struct wl_pointer_grab_interface *interface;
+	struct weston_compositor *ec = seat->compositor;
+	struct wl_pointer *pointer = seat->seat.pointer;
+
+	weston_compositor_wake(ec);
+
+	move_pointer_absolute(seat, x, y);
+
+	interface = pointer->grab->interface;
+	interface->motion(pointer->grab, time,
+			  pointer->grab->x, pointer->grab->y);
+}
+
+WL_EXPORT void
 weston_surface_activate(struct weston_surface *surface,
 			struct weston_seat *seat)
 {
diff --git a/src/compositor.h b/src/compositor.h
index 58ab58d..c1efe0f 100644
--- a/src/compositor.h
+++ b/src/compositor.h
@@ -555,7 +555,12 @@ weston_surface_activate(struct weston_surface *surface,
 			struct weston_seat *seat);
 void
 notify_motion(struct weston_seat *seat, uint32_t time,
-	      wl_fixed_t x, wl_fixed_t y);
+	      wl_fixed_t dx, wl_fixed_t dy);
+
+void
+notify_motion_absolute(struct weston_seat *seat,
+	      uint32_t time, wl_fixed_t x, wl_fixed_t y);
+
 void
 notify_button(struct weston_seat *seat, uint32_t time, int32_t button,
 	      enum wl_pointer_button_state state);
diff --git a/src/evdev.c b/src/evdev.c
index d2954b5..2c81d2b 100644
--- a/src/evdev.c
+++ b/src/evdev.c
@@ -284,7 +284,7 @@ evdev_flush_motion(struct evdev_device *device, uint32_t time)
 	}
 	if (device->pending_events & EVDEV_ABSOLUTE_MOTION) {
 		transform_absolute(device);
-		notify_motion(master, time,
+		notify_motion_absolute(master, time,
 			      wl_fixed_from_int(device->abs.x),
 			      wl_fixed_from_int(device->abs.y));
 		device->pending_events &= ~EVDEV_ABSOLUTE_MOTION;
-- 
1.7.11.7