typedef union {
	int i;
	unsigned int ui;
	float f;
	const void *v;
} Arg;
typedef struct {
	uint32_t mod;
	xkb_keysym_t keysym;
	void (*func)(struct dwl_server *, const Arg *);
	const Arg arg;
} Key;
static void focusnext(struct dwl_server *, const Arg *);
static void quit(struct dwl_server *, const Arg *);

static bool handle_keybinding(struct dwl_server *server, xkb_keysym_t sym) {

static void quit(struct dwl_server *server, const Arg *unused) {
	wl_display_terminate(server->wl_display);
}
static void focusnext(struct dwl_server *server, const Arg *unused) {
	/* Cycle to the next view */
	if (wl_list_length(&server->views) < 2) {
		return;
	}
	struct dwl_view *current_view = wl_container_of(
		server->views.next, current_view, link);
	struct dwl_view *next_view = wl_container_of(
		current_view->link.next, next_view, link);
	focus_view(next_view, next_view->xdg_surface->surface);
	/* Move the previous view to the end of the list */
	wl_list_remove(&current_view->link);
	wl_list_insert(server->views.prev, &current_view->link);
}
static bool handle_keybinding(struct dwl_server *server, uint32_t mods, xkb_keysym_t sym) {

	 *
	 * This function assumes Alt is held down.

		wl_display_terminate(server->wl_display);

		quit(server, NULL);

		/* Cycle to the next view */
		if (wl_list_length(&server->views) < 2) {
			break;
		}
		struct dwl_view *current_view = wl_container_of(
			server->views.next, current_view, link);
		struct dwl_view *next_view = wl_container_of(
			current_view->link.next, next_view, link);
		focus_view(next_view, next_view->xdg_surface->surface);
		/* Move the previous view to the end of the list */
		wl_list_remove(&current_view->link);
		wl_list_insert(server->views.prev, &current_view->link);

		focusnext(server, NULL);

	uint32_t modifiers = wlr_keyboard_get_modifiers(keyboard->device->keyboard);
	if ((modifiers & WLR_MODIFIER_ALT) && event->state == WLR_KEY_PRESSED) {
		/* If alt is held down and this button was _pressed_, we attempt to
		 * process it as a compositor keybinding. */

	uint32_t mods = wlr_keyboard_get_modifiers(keyboard->device->keyboard);
	if (event->state == WLR_KEY_PRESSED) {
		/* On _press_, attempt to process a compositor keybinding. */

			handled = handle_keybinding(server, syms[i]);

			handled = handle_keybinding(server, mods, syms[i]) || handled;

#define MODKEY WLR_MODIFIER_ALT
static const Key keys[] = {
	{ MODKEY, XKB_KEY_Escape, quit,      {0} },
	{ MODKEY, XKB_KEY_F1,     focusnext, {0} },
};