static void
play_game(struct rnd *rnd)
{
struct game *game = game_alloc_or_die(rnd);
struct result result = game_show(game);
if (result_is_success(result)) result = game_run(game);
game_hide(game);
if (!result_is_success(result)) result_print_error(result);
game_free_or_die(game);
}
struct result
app_activate_view(struct app *app, struct view *view)
{
struct result result = view_enable_keyboard(view);
if (!result_is_success(result)) return result;
app->active_view = view;
return result_success();
}
struct result
app_run(struct app *app)
{
sig_t previous_sigwinch_handler = signal(SIGWINCH, terminal_window_did_change);
if (SIG_ERR == previous_sigwinch_handler) {
return result_system_error();
}
struct result result = result_success();
for (int i = 0; i < app->views_count; ++i) {
result = app->views[i]->create(app->views[i], app);
if (!result_is_success(result)) break;
}
if (result_is_success(result)) {
for (int i = 0; i < app->views_count; ++i) {
result = app->views[i]->draw(app->views[i], app);
if (!result_is_success(result)) break;
wnoutrefresh(app->views[i]->window);
}
}
if (!app->active_view) {
int i = app->views_count - 1;
result = app_activate_view(app, app->views[i]);
}
doupdate();
if (result_is_success(result)) {
result = dispatch_events(app);
}
for (int i = app->views_count - 1; i >= 0; --i) {
app->views[i]->destroy(app->views[i], app);
}
signal(SIGWINCH, previous_sigwinch_handler);
return result;
}
static void
run_tui(void)
{
struct app *app = app_alloc();
struct result result = app_run(app);
if (!result_is_success(result)) {
result_print_error(result);
}
app_free(app);
}
static struct result
dispatch_events(struct app *app)
{
struct result result = result_success();
app->is_running = true;
do {
int key = view_read_key(app->active_view);
if (ERR == key) {
result = result_ncurses_err();
app_quit(app);
break;
}
result = app->active_view->on_key(app->active_view, app, key);
if (!result_is_success(result)) {
app_quit(app);
break;
}
} while (app->is_running);
return result;
}
struct result
selection_show(struct selection *selection, WINDOW *parent)
{
if (!selection) return result_set_system_error(EINVAL);
selection->menu = new_menu(selection->items);
if (!selection->menu) return result_ncurses_errno();
int menu_height;
int menu_width;
int code = scale_menu(selection->menu, &menu_height, &menu_width);
if (E_OK != code) return result_ncurses_error(code);
int title_width = (int)strlen(selection->title) + 1;
if (title_width > menu_width) menu_width = title_width;
int main_window_height;
int main_window_width;
getmaxyx(parent, main_window_height, main_window_width);
int menu_window_height = menu_height + 4;
int menu_window_width = menu_width + 5;
int menu_window_y = (main_window_height - menu_window_height) / 2;
int menu_window_x = (main_window_width - menu_window_width) / 2;
selection->window = newwin(menu_window_height, menu_window_width,
menu_window_y, menu_window_x);
if (!selection->window) return result_ncurses_err();
code = keypad(selection->window, TRUE);
if (ERR == code) return result_ncurses_err();
struct result result = draw_window(selection);
if (!result_is_success(result)) return result;
code = set_menu_win(selection->menu, selection->window);
if (E_OK != code) return result_ncurses_error(code);
int menu_sub_height = menu_height;
int menu_sub_width = menu_width;
int menu_sub_y = 2;
int menu_sub_x = 2;
selection->sub_window = derwin(selection->window,
menu_sub_height, menu_sub_width,
menu_sub_y, menu_sub_x);
if (!selection->sub_window) return result_ncurses_err();
code = set_menu_sub(selection->menu, selection->sub_window);
if (E_OK != code) return result_ncurses_error(code);
selection->index = 0;
code = post_menu(selection->menu);
if (E_OK != code) return result_ncurses_error(code);
code = wrefresh(selection->window);
if (ERR == code) return result_ncurses_err();
result = get_selection(selection);
if (!result_is_success(result)) return result;
ITEM *selected_item = current_item(selection->menu);
if (selected_item) selection->index = item_index(selected_item);
code = unpost_menu(selection->menu);
if (E_OK != code) return result_ncurses_error(code);
code = wclear(selection->window);
if (ERR == code) return result_ncurses_err();
code = wrefresh(selection->window);
if (ERR == code) return result_ncurses_err();
code = free_menu(selection->menu);
if (E_OK != code) return result_ncurses_error(code);
selection->menu = NULL;
code = delwin(selection->sub_window);
if (E_OK != code) return result_ncurses_error(code);
selection->sub_window = NULL;
code = delwin(selection->window);
if (E_OK != code) return result_ncurses_error(code);
selection->window = NULL;
return result_success();
}
