struct wlr_surface *prev_surface;
	struct wlr_xdg_surface *previous;

	Client *sel = selclient();

	/* Previous and new xdg toplevel surfaces */
	struct wlr_xdg_surface *ptl = sel ? sel->xdg_surface : NULL;
	struct wlr_xdg_surface *tl = c ? c->xdg_surface : NULL;
	/* Previously focused surface */
	struct wlr_surface *psurface = seat->keyboard_state.focused_surface;

		/* Use top level surface if nothing more specific given */

		/* Use top-level wlr_surface if nothing more specific given */

		/* Focus the correct monitor as well */

		/* Focus the correct monitor (must come after selclient!) */

	}

	/* XXX Need to understand xdg toplevel/popups to know if there's more
	 * simplification that can be done in this function */
	prev_surface = seat->keyboard_state.focused_surface;
	/* Don't re-focus an already focused surface. */
	/* XXX need to move raiseclient before this */
	if (prev_surface == surface)
		return;
	if (prev_surface) {
		/*
		 * Deactivate the previously focused surface. This lets the
		 * client know it no longer has focus and the client will
		 * repaint accordingly, e.g. stop displaying a caret.
		 */
		previous = wlr_xdg_surface_from_wlr_surface(
					seat->keyboard_state.focused_surface);
		wlr_xdg_toplevel_set_activated(previous, 0);
	}
	/*
	 * 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.  If surface == NULL, this will clear focus.
	 */
	kb = wlr_seat_get_keyboard(seat);
	wlr_seat_keyboard_notify_enter(seat, surface,
			kb->keycodes, kb->num_keycodes, &kb->modifiers);
	if (c) {

		/* Also raise client in stacking order if requested */

		/* Activate the new surface */
		wlr_xdg_toplevel_set_activated(c->xdg_surface, 1);

	}
	/*
	 * If the focused surface has changed, tell the seat to have the
	 * keyboard enter the new surface.  wlroots will keep track of this and
	 * automatically send key events to the appropriate clients.  If surface
	 * is NULL, this will clear focus.
	 */
	if (surface != psurface) {
		kb = wlr_seat_get_keyboard(seat);
		wlr_seat_keyboard_notify_enter(seat, surface,
				kb->keycodes, kb->num_keycodes, &kb->modifiers);

	/*
	 * If the focused toplevel has changed, deactivate the old one and
	 * activate the new one.  This lets the clients know to repaint
	 * accordingly, e.g. show/hide a caret.
	 */
	if (tl != ptl && ptl)
		wlr_xdg_toplevel_set_activated(ptl, 0);
	if (tl != ptl && tl)
		wlr_xdg_toplevel_set_activated(tl, 1);