/* Note: this function only deals with keyboard focus. */
	if (c == NULL) {
		return;

	/* Default client is most recently focused on selmon */
	if (!c || !VISIBLEON(c, c->mon)) {
		c = NULL;
		surface = NULL;
		Client *next;
		wl_list_for_each(next, &fstack, flink) {
			if (VISIBLEON(next, selmon)) {
				c = next;
				break;
			}
		}

	/* Default surface is the client's main xdg_surface */
	if (c && !surface)
		surface = c->xdg_surface->surface;
	/* Focus the correct monitor as well */
	if (c)
		selmon = c->mon;

	struct wlr_keyboard *keyboard = wlr_seat_get_keyboard(seat);
	/* Move the client to the front of the focus stack */
	wl_list_remove(&c->flink);
	wl_list_insert(&fstack, &c->flink);
	/* Activate the new surface */
	wlr_xdg_toplevel_set_activated(c->xdg_surface, true);
	/*
	 * Tell the seat to have the keyboard enter this surface. wlroots will keep
	 * track of this and automatically send key events to the appropriate
	 * clients without additional work on your part.
	 */
	wlr_seat_keyboard_notify_enter(seat, c->xdg_surface->surface,
		keyboard->keycodes, keyboard->num_keycodes, &keyboard->modifiers);

	if (c) {
		struct wlr_keyboard *keyboard = wlr_seat_get_keyboard(seat);
		/* Move the client to the front of the focus stack */
		wl_list_remove(&c->flink);
		wl_list_insert(&fstack, &c->flink);
		/* Activate the new surface */
		wlr_xdg_toplevel_set_activated(c->xdg_surface, true);
		/*
		 * Tell the seat to have the keyboard enter this surface.
		 * wlroots will keep track of this and automatically send key
		 * events to the appropriate clients without additional work on
		 * your part.
		 */
		wlr_seat_keyboard_notify_enter(seat, c->xdg_surface->surface,
			keyboard->keycodes, keyboard->num_keycodes,
			&keyboard->modifiers);
	} else {
		wlr_seat_keyboard_clear_focus(seat);
	}

	focus(c, c->xdg_surface->surface);

	focus(c, NULL);

	focus(c, c->xdg_surface->surface);

	focus(c, NULL);

	int hadfocus = (c == selclient());

	if (hadfocus)
		focus(NULL, NULL);