Client *sel = selclient();
	struct wlr_keyboard *kb;
	/* Previously focused surface */
	struct wlr_surface *psurface = seat->keyboard_state.focused_surface;
	if (c) {
		/* assert(VISIBLEON(c, c->mon)); ? */
		/* Use top-level wlr_surface if nothing more specific given */
		if (!surface)
			surface = WLR_SURFACE(c);
		/* Focus the correct monitor (must come after selclient!) */
		selmon = c->mon;

	Client *old = selclient();
	struct wlr_keyboard *kb = 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);

	/* Use top-level wlr_surface if nothing more specific is given */
	if (c && !surface)
		surface = WLR_SURFACE(c);

		/* Also raise client in stacking order if requested */
		if (lift) {
			wl_list_remove(&c->slink);
			wl_list_insert(&stack, &c->slink);
		}

	/* Deactivate old client if focus is changing */
	if (c != old && old) {
		if (old->type != XDGShell)
			wlr_xwayland_surface_activate(old->xwayland_surface, 0);
		else
			wlr_xdg_toplevel_set_activated(old->xdg_surface, 0);

	/*
	 * 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, we clear the focus instead.
	 */
	if (!surface) {

	/* Update wlroots' keyboard focus */
	if (!c) {
		/* With no client, all we have left is to clear focus */

	} else if (surface != psurface) {
		kb = wlr_seat_get_keyboard(seat);

		return;
	}
	/* Otherwise, update the focus if it has changed */
	if (surface != seat->keyboard_state.focused_surface)

	/* Select client's monitor, move it to the top of the focus stack, and
	 * raise it in the stacking order if requested. */
	selmon = c->mon;
	wl_list_remove(&c->flink);
	wl_list_insert(&fstack, &c->flink);
	if (lift) {
		wl_list_remove(&c->slink);
		wl_list_insert(&stack, &c->slink);

	/*
	 * If the focused toplevel has changed, deactivate the old one. Always
	 * activate the current one.  This lets the clients know to repaint
	 * accordingly, e.g. show/hide a caret.
	 */
	if (c != sel && sel) {
		if (sel->type != XDGShell)
			wlr_xwayland_surface_activate(sel->xwayland_surface, 0);
		else
			wlr_xdg_toplevel_set_activated(sel->xdg_surface, 0);
	}
	if (c) {
		if (c->type != XDGShell)
			wlr_xwayland_surface_activate(c->xwayland_surface, 1);
		else
			wlr_xdg_toplevel_set_activated(c->xdg_surface, 1);
	}

	/* Activate the new client */
	if (c->type != XDGShell)
		wlr_xwayland_surface_activate(c->xwayland_surface, 1);
	else
		wlr_xdg_toplevel_set_activated(c->xdg_surface, 1);