static void focus(Client *c, struct wlr_surface *surface);

static void keyboardfocus(Client *c, struct wlr_surface *surface);

static void pointerfocus(Client *c, struct wlr_surface *surface,
		double sx, double sy);

		focus(c, surface);

		keyboardfocus(c, surface);

	}
}
void
focus(Client *c, struct wlr_surface *surface)
{
	if (c) {
		/* assert(VISIBLEON(c, c->mon)); ? */
		/* Default surface is the client's main xdg_surface */
		if (!surface)
			surface = c->xdg_surface->surface;
		/* Focus the correct monitor as well */
		selmon = c->mon;
	}
	/* XXX Need to understand xdg toplevel/popups to know if there's more
	 * simplification that can be done in this function */
	struct wlr_surface *prev_surface = seat->keyboard_state.focused_surface;
	/* Don't re-focus an already focused surface. */
	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.
		 */
		struct wlr_xdg_surface *previous = wlr_xdg_surface_from_wlr_surface(
					seat->keyboard_state.focused_surface);
		wlr_xdg_toplevel_set_activated(previous, false);
	}
	if (!c) {
		wlr_seat_keyboard_clear_focus(seat);
		return;

	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);

	focus(c, NULL);

	keyboardfocus(c, NULL);

}
void
keyboardfocus(Client *c, struct wlr_surface *surface)
{
	if (c) {
		/* assert(VISIBLEON(c, c->mon)); ? */
		/* If no surface provided, use the client's xdg_surface */
		if (!surface)
			surface = c->xdg_surface->surface;
		/* Focus the correct monitor as well */
		selmon = c->mon;
	}
	/* XXX Need to understand xdg toplevel/popups to know if there's more
	 * simplification that can be done in this function */
	struct wlr_surface *prev_surface = seat->keyboard_state.focused_surface;
	/* Don't re-focus an already focused surface. */
	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.
		 */
		struct wlr_xdg_surface *previous = wlr_xdg_surface_from_wlr_surface(
					seat->keyboard_state.focused_surface);
		wlr_xdg_toplevel_set_activated(previous, false);
	}
	if (!c) {
		wlr_seat_keyboard_clear_focus(seat);
		return;
	}
	/* 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.
	 */
	struct wlr_keyboard *kb = wlr_seat_get_keyboard(seat);
	wlr_seat_keyboard_notify_enter(seat, c->xdg_surface->surface,
		kb->keycodes, kb->num_keycodes, &kb->modifiers);

	focus(c, NULL);

	keyboardfocus(c, NULL);

	if (!surface) {
		/* Clear pointer focus so future button events and such are not sent to
		 * the last client to have the cursor over it. */
		wlr_seat_pointer_clear_focus(seat);
		/* If keyboard focus follows mouse, clear that too */
		if (sloppyfocus)
			focus(NULL, NULL);
		return;
	}

	/*
	 * "Enter" the surface if necessary. This lets the client know that the
	 * cursor has entered one of its surfaces.
	 *
	 * Note that this gives the surface "pointer focus", which is distinct
	 * from keyboard focus. You get pointer focus by moving the pointer over
	 * a window.
	 */
	if (surface != seat->pointer_state.focused_surface) {
		wlr_seat_pointer_notify_enter(seat, surface, sx, sy);
		if (sloppyfocus)
			focus(c, surface);
	} else {
		/* The enter event contains coordinates, so we only need to notify
		 * on motion if the focus did not change. */

	/* If surface is already focused, only notify of motion, otherwise give
	 * surface the pointer focus */
	if (surface && surface == seat->pointer_state.focused_surface)

	}

	else
		pointerfocus(c, surface, sx, sy);

pointerfocus(Client *c, struct wlr_surface *surface, double sx, double sy)
{
	/* If surface is NULL, clear pointer focus, otherwise let the client
	 * know that the mouse cursor has entered one of its surfaces. */
	if (!surface)
		wlr_seat_pointer_clear_focus(seat);
	else
		wlr_seat_pointer_notify_enter(seat, surface, sx, sy);
	/* If keyboard focus follows mouse, enforce that */
	if (sloppyfocus)
		keyboardfocus(c, surface);
}
void

	focus(c, NULL);

	keyboardfocus(c, NULL);