Fix pointer example for wayland backend

example/pointer.c

@@ -54,6 +54,13 @@ static void handle_pointer_motion(struct pointer_state *pstate,
 	state->cur_y += d_y;
 }
 
+static void handle_pointer_motion_absolute(struct pointer_state *pstate,
+		double x, double y) {
+	struct sample_state *state = pstate->compositor->data;
+	state->cur_x = x;
+	state->cur_y = y;
+}
+
 static void handle_pointer_button(struct pointer_state *pstate,
 		uint32_t button, enum wlr_button_state state) {
 	struct sample_state *sample = pstate->compositor->data;
@@ -109,6 +116,7 @@ int main(int argc, char *argv[]) {
 	compositor.output_add_cb = handle_output_add;
 	compositor.output_frame_cb = handle_output_frame;
 	compositor.pointer_motion_cb = handle_pointer_motion;
+	compositor.pointer_motion_absolute_cb = handle_pointer_motion_absolute;
 	compositor.pointer_button_cb = handle_pointer_button;
 	compositor.pointer_axis_cb = handle_pointer_axis;
 	compositor_init(&compositor);

example/shared.c

@@ -105,6 +105,15 @@ static void pointer_motion_notify(struct wl_listener *listener, void *data) {
 	}
 }
 
+static void pointer_motion_absolute_notify(struct wl_listener *listener, void *data) {
+	struct wlr_event_pointer_motion_absolute *event = data;
+	struct pointer_state *pstate = wl_container_of(listener, pstate, motion_absolute);
+	if (pstate->compositor->pointer_motion_absolute_cb) {
+		pstate->compositor->pointer_motion_absolute_cb(pstate,
+				event->x_mm, event->y_mm);
+	}
+}
+
 static void pointer_button_notify(struct wl_listener *listener, void *data) {
 	struct wlr_event_pointer_button *event = data;
 	struct pointer_state *pstate = wl_container_of(listener, pstate, button);
@@ -132,9 +141,11 @@ static void pointer_add(struct wlr_input_device *device, struct compositor_state
 	wl_list_init(&pstate->button.link);
 	wl_list_init(&pstate->axis.link);
 	pstate->motion.notify = pointer_motion_notify;
+	pstate->motion_absolute.notify = pointer_motion_absolute_notify;
 	pstate->button.notify = pointer_button_notify;
 	pstate->axis.notify = pointer_axis_notify;
 	wl_signal_add(&device->pointer->events.motion, &pstate->motion);
+	wl_signal_add(&device->pointer->events.motion_absolute, &pstate->motion_absolute);
 	wl_signal_add(&device->pointer->events.button, &pstate->button);
 	wl_signal_add(&device->pointer->events.axis, &pstate->axis);
 	wl_list_insert(&state->pointers, &pstate->link);
@@ -308,7 +319,7 @@ static void pointer_remove(struct wlr_input_device *device, struct compositor_st
 	}
 	wl_list_remove(&pstate->link);
 	wl_list_remove(&pstate->motion.link);
-	//wl_list_remove(&pstate->motion_absolute.link);
+	wl_list_remove(&pstate->motion_absolute.link);
 	wl_list_remove(&pstate->button.link);
 	wl_list_remove(&pstate->axis.link);
 }

example/shared.h

@@ -83,6 +83,8 @@ struct compositor_state {
 			enum wlr_key_state key_state);
 	void (*pointer_motion_cb)(struct pointer_state *s,
 			double d_x, double d_y);
+	void (*pointer_motion_absolute_cb)(struct pointer_state *s,
+			double x, double y);
 	void (*pointer_button_cb)(struct pointer_state *s,
 			uint32_t button, enum wlr_button_state state);
 	void (*pointer_axis_cb)(struct pointer_state *s,