/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2021 - Hans-Kristian Arntzen
* Copyright (C) 2011-2021 - Daniel De Matteis
* Copyright (C) 2019-2021 - James Leaver
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <string/stdstring.h>
#include "tasks_internal.h"
#include "../menu/menu_driver.h"
typedef struct menu_explore_init_handle
{
explore_state_t *state;
char *directory_playlist;
char *directory_database;
} menu_explore_init_handle_t;
/*********************/
/* Utility Functions */
/*********************/
static void free_menu_explore_init_handle(
menu_explore_init_handle_t *menu_explore)
{
if (!menu_explore)
return;
if (menu_explore->directory_playlist)
{
free(menu_explore->directory_playlist);
menu_explore->directory_playlist = NULL;
}
if (menu_explore->directory_database)
{
free(menu_explore->directory_database);
menu_explore->directory_database = NULL;
}
if (menu_explore->state)
{
menu_explore_free_state(menu_explore->state);
free(menu_explore->state);
menu_explore->state = NULL;
}
free(menu_explore);
menu_explore = NULL;
}
static void cb_task_menu_explore_init(
retro_task_t *task, void *task_data,
void *user_data, const char *err)
{
menu_explore_init_handle_t *menu_explore = NULL;
unsigned menu_type = 0;
struct menu_state *menu_st = menu_state_get_ptr();
if (!task)
return;
if (!(menu_explore = (menu_explore_init_handle_t*)task->state))
return;
/* Assign global menu explore state object */
menu_explore_set_state(menu_explore->state);
menu_explore->state = NULL;
/* If the explore menu is currently displayed,
* it must be refreshed */
menu_entries_get_last_stack(NULL, NULL, &menu_type, NULL, NULL);
/* check if we are opening a saved view from the horizontal/tabs menu */
if (menu_type == MENU_SETTING_HORIZONTAL_MENU)
{
const menu_ctx_driver_t *driver_ctx = menu_st->driver_ctx;
if (driver_ctx->list_get_entry)
{
size_t selection = driver_ctx->list_get_selection ? driver_ctx->list_get_selection(menu_st->userdata) : 0;
size_t size = driver_ctx->list_get_size ? driver_ctx->list_get_size(menu_st->userdata, MENU_LIST_TABS) : 0;
if (selection > 0 && size > 0)
{
struct item_file *item = NULL;
/* Label contains the path and path contains the label */
if ((item = (struct item_file*)driver_ctx->list_get_entry(menu_st->userdata, MENU_LIST_HORIZONTAL,
(unsigned)(selection - (size +1)))))
menu_type = item->type;
}
}
}
if (menu_type == MENU_EXPLORE_TAB)
menu_st->flags |= MENU_ST_FLAG_ENTRIES_NEED_REFRESH
| MENU_ST_FLAG_PREVENT_POPULATE;
}
static void task_menu_explore_init_free(retro_task_t *task)
{
menu_explore_init_handle_t *menu_explore = NULL;
if (!task)
return;
menu_explore = (menu_explore_init_handle_t*)task->state;
free_menu_explore_init_handle(menu_explore);
}
/*******************************/
/* Explore Menu Initialisation */
/*******************************/
static void task_menu_explore_init_handler(retro_task_t *task)
{
if (task)
{
menu_explore_init_handle_t *menu_explore = NULL;
if ((menu_explore = (menu_explore_init_handle_t*)task->state))
{
uint8_t flg = task_get_flags(task);
if (!((flg & RETRO_TASK_FLG_CANCELLED) > 0))
{
/* TODO/FIXME: It could be beneficial to
* initialise the explore menu iteratively,
* but this would require a non-trivial rewrite
* of the menu_explore code. For now, we will
* do it in a single shot (the most important
* consideration here is to place this
* initialisation on a background thread) */
menu_explore->state = menu_explore_build_list(
menu_explore->directory_playlist,
menu_explore->directory_database);
task_set_progress(task, 100);
}
}
task_set_flags(task, RETRO_TASK_FLG_FINISHED, true);
}
}
static bool task_menu_explore_init_finder(retro_task_t *task, void *user_data)
{
return (task && task->handler == task_menu_explore_init_handler);
}
bool task_push_menu_explore_init(const char *directory_playlist,
const char *directory_database)
{
task_finder_data_t find_data;
retro_task_t *task = NULL;
menu_explore_init_handle_t *menu_explore = NULL;
if ( string_is_empty(directory_playlist)
|| string_is_empty(directory_database))
goto error;
task = task_init();
menu_explore = (menu_explore_init_handle_t*)calloc(1,
sizeof(menu_explore_init_handle_t));
if (!task || !menu_explore)
goto error;
/* Explore menu is singular - cannot perform
* multiple initialisations simultaneously */
find_data.func = task_menu_explore_init_finder;
find_data.userdata = NULL;
if (task_queue_find(&find_data))
goto error;
/* Configure handle */
menu_explore->state = NULL;
menu_explore->directory_playlist = strdup(directory_playlist);
menu_explore->directory_database = strdup(directory_database);
/* Configure task
* > Note: This is silent task, with no title
* and no user notification messages */
task->handler = task_menu_explore_init_handler;
task->state = menu_explore;
task->title = NULL;
task->progress = 0;
task->callback = cb_task_menu_explore_init;
task->cleanup = task_menu_explore_init_free;
task->flags |= RETRO_TASK_FLG_MUTE;
task_queue_push(task);
return true;
error:
if (task)
{
free(task);
task = NULL;
}
free_menu_explore_init_handle(menu_explore);
menu_explore = NULL;
return false;
}
bool menu_explore_init_in_progress(void *data)
{
task_finder_data_t find_data;
find_data.func = task_menu_explore_init_finder;
find_data.userdata = NULL;
if (task_queue_find(&find_data))
return true;
return false;
}
void menu_explore_wait_for_init_task(void)
{
task_queue_wait(menu_explore_init_in_progress, NULL);
}