rootston: handle request_set_cursor

include/rootston/input.h

@@ -107,6 +107,8 @@ struct roots_input {
 	struct wl_listener cursor_tool_tip;
 
 	struct wl_listener pointer_grab_end;
+
+	struct wl_listener request_set_cursor;
 };
 
 struct roots_input *input_create(struct roots_server *server,

rootston/cursor.c

@@ -274,6 +274,24 @@ static void handle_pointer_grab_end(struct wl_listener *listener, void *data) {
 	cursor_update_position(input, 0);
 }
 
+static void handle_request_set_cursor(struct wl_listener *listener,
+		void *data) {
+	struct roots_input *input = wl_container_of(listener, input,
+		request_set_cursor);
+	//struct wlr_seat_pointer_request_set_cursor_event *event = data;
+
+	struct wlr_xcursor_image *image = input->xcursor->images[0];
+	struct roots_output *output;
+	wl_list_for_each(output, &input->server->desktop->outputs, link) {
+		if (!wlr_output_set_cursor(output->wlr_output, image->buffer,
+				image->width, image->width, image->height,
+				image->hotspot_x, image->hotspot_y)) {
+			wlr_log(L_DEBUG, "Failed to set hardware cursor");
+			return;
+		}
+	}
+}
+
 void cursor_initialize(struct roots_input *input) {
 	struct wlr_cursor *cursor = input->cursor;
 
@@ -304,6 +322,11 @@ void cursor_initialize(struct roots_input *input) {
 
 	wl_signal_add(&input->wl_seat->events.pointer_grab_end, &input->pointer_grab_end);
 	input->pointer_grab_end.notify = handle_pointer_grab_end;
+
+	wl_list_init(&input->request_set_cursor.link);
+	wl_signal_add(&input->wl_seat->events.request_set_cursor,
+		&input->request_set_cursor);
+	input->request_set_cursor.notify = handle_request_set_cursor;
 }
 
 static void reset_device_mappings(struct roots_config *config,

types/wlr_seat.c

@@ -24,7 +24,10 @@ static void wl_pointer_set_cursor(struct wl_client *client,
 		struct wl_resource *surface_resource,
 		int32_t hotspot_x, int32_t hotspot_y) {
 	struct wlr_seat_handle *handle = wl_resource_get_user_data(resource);
-	struct wlr_surface *surface = wl_resource_get_user_data(surface_resource);
+	struct wlr_surface *surface = NULL;
+	if (surface_resource != NULL) {
+		surface = wl_resource_get_user_data(surface_resource);
+	}
 
 	struct wlr_seat_pointer_request_set_cursor_event *event =
 		calloc(1, sizeof(struct wlr_seat_pointer_request_set_cursor_event));