input: Remove exported function weston_pointer_verify()

Instead, add a compositor signal that an output has been destroyed and
handle that case locally in input.c.

src/compositor.c

@@ -3170,19 +3170,6 @@ weston_compositor_remove_output(struct weston_compositor *compositor,
 	}
 }
 
-static void
-weston_compositor_verify_pointers(struct weston_compositor *ec)
-{
-	struct weston_seat *seat;
-
-	wl_list_for_each(seat, &ec->seat_list, link) {
-		if (!seat->pointer)
-			continue;
-
-		weston_pointer_verify(seat->pointer);
-	}
-}
-
 WL_EXPORT void
 weston_output_destroy(struct weston_output *output)
 {
@@ -3191,8 +3178,7 @@ weston_output_destroy(struct weston_output *output)
 	weston_compositor_remove_output(output->compositor, output);
 	wl_list_remove(&output->link);
 
-	weston_compositor_verify_pointers(output->compositor);
+	wl_signal_emit(&output->compositor->output_destroyed_signal, output);
-
 	wl_signal_emit(&output->destroy_signal, output);
 
 	free(output->name);
@@ -3654,6 +3640,7 @@ weston_compositor_init(struct weston_compositor *ec,
 	wl_signal_init(&ec->update_input_panel_signal);
 	wl_signal_init(&ec->seat_created_signal);
 	wl_signal_init(&ec->output_created_signal);
+	wl_signal_init(&ec->output_destroyed_signal);
 	wl_signal_init(&ec->session_signal);
 	ec->session_active = 1;
 

src/compositor.h

@@ -329,6 +329,8 @@ struct weston_pointer {
 
 	wl_fixed_t x, y;
 	uint32_t button_count;
+
+	struct wl_listener output_destroy_listener;
 };
 
 
@@ -375,8 +377,6 @@ weston_pointer_move(struct weston_pointer *pointer,
 void
 weston_pointer_set_default_grab(struct weston_pointer *pointer,
 		const struct weston_pointer_grab_interface *interface);
-void
-weston_pointer_verify(struct weston_pointer *pointer);
 
 struct weston_keyboard *
 weston_keyboard_create(void);
@@ -579,6 +579,7 @@ struct weston_compositor {
 
 	struct wl_signal seat_created_signal;
 	struct wl_signal output_created_signal;
+	struct wl_signal output_destroyed_signal;
 
 	struct wl_event_loop *input_loop;
 	struct wl_event_source *input_loop_source;

src/input.c

@@ -438,6 +438,9 @@ weston_pointer_reset_state(struct weston_pointer *pointer)
 	pointer->button_count = 0;
 }
 
+static void
+weston_pointer_handle_output_destroy(struct wl_listener *listener, void *data);
+
 WL_EXPORT struct weston_pointer *
 weston_pointer_create(struct weston_seat *seat)
 {
@@ -465,6 +468,11 @@ weston_pointer_create(struct weston_seat *seat)
 	pointer->x = wl_fixed_from_int(100);
 	pointer->y = wl_fixed_from_int(100);
 
+	pointer->output_destroy_listener.notify =
+		weston_pointer_handle_output_destroy;
+	wl_signal_add(&seat->compositor->output_destroyed_signal,
+		      &pointer->output_destroy_listener);
+
 	return pointer;
 }
 
@@ -478,6 +486,7 @@ weston_pointer_destroy(struct weston_pointer *pointer)
 
 	wl_list_remove(&pointer->focus_resource_listener.link);
 	wl_list_remove(&pointer->focus_view_listener.link);
+	wl_list_remove(&pointer->output_destroy_listener.link);
 	free(pointer);
 }
 
@@ -871,14 +880,19 @@ weston_pointer_move(struct weston_pointer *pointer, wl_fixed_t x, wl_fixed_t y)
 
 /** Verify if the pointer is in a valid position and move it if it isn't.
  */
-WL_EXPORT void
+static void
-weston_pointer_verify(struct weston_pointer *pointer)
+weston_pointer_handle_output_destroy(struct wl_listener *listener, void *data)
 {
-	struct weston_compositor *ec = pointer->seat->compositor;
+	struct weston_pointer *pointer;
+	struct weston_compositor *ec;
 	struct weston_output *output, *closest = NULL;
 	int x, y, distance, min = INT_MAX;
 	wl_fixed_t fx, fy;
 
+	pointer = container_of(listener, struct weston_pointer,
+			       output_destroy_listener);
+	ec = pointer->seat->compositor;
+
 	x = wl_fixed_to_int(pointer->x);
 	y = wl_fixed_to_int(pointer->y);