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819 lines
22 KiB
C
819 lines
22 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2014-2015 - Jay McCarthy
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* Copyright (C) 2011-2017 - Daniel De Matteis
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <string.h>
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#include <retro_inline.h>
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#include <compat/strl.h>
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#include <string/stdstring.h>
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#include "menu_driver.h"
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#include "menu_cbs.h"
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#include "../core.h"
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#include "../retroarch.h"
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#include "../version.h"
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/* Flagged when menu entries need to be refreshed */
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static bool menu_entries_need_refresh = false;
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static bool menu_entries_nonblocking_refresh = false;
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static size_t menu_entries_begin = 0;
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static rarch_setting_t *menu_entries_list_settings = NULL;
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static menu_list_t *menu_entries_list = NULL;
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struct menu_list
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{
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size_t menu_stack_size;
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size_t selection_buf_size;
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file_list_t **menu_stack;
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file_list_t **selection_buf;
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};
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static void menu_list_free_list(file_list_t *list)
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{
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unsigned i;
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for (i = 0; i < list->size; i++)
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{
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menu_ctx_list_t list_info;
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list_info.list = list;
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list_info.idx = i;
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list_info.list_size = list->size;
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menu_driver_ctl(RARCH_MENU_CTL_LIST_FREE, &list_info);
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}
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file_list_free(list);
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}
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static void menu_list_free(menu_list_t *menu_list)
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{
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if (!menu_list)
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return;
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if (menu_list->menu_stack)
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{
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unsigned i;
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for (i = 0; i < menu_list->menu_stack_size; i++)
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{
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if (!menu_list->menu_stack[i])
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continue;
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menu_list_free_list(menu_list->menu_stack[i]);
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menu_list->menu_stack[i] = NULL;
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}
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free(menu_list->menu_stack);
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}
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if (menu_list->selection_buf)
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{
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unsigned i;
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for (i = 0; i < menu_list->selection_buf_size; i++)
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{
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if (!menu_list->selection_buf[i])
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continue;
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menu_list_free_list(menu_list->selection_buf[i]);
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menu_list->selection_buf[i] = NULL;
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}
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free(menu_list->selection_buf);
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}
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free(menu_list);
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}
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static menu_list_t *menu_list_new(void)
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{
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unsigned i;
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menu_list_t *list = (menu_list_t*)malloc(sizeof(*list));
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if (!list)
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return NULL;
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list->menu_stack_size = 1;
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list->selection_buf_size = 1;
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list->selection_buf = NULL;
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list->menu_stack = (file_list_t**)
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calloc(list->menu_stack_size, sizeof(*list->menu_stack));
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if (!list->menu_stack)
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goto error;
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list->selection_buf = (file_list_t**)
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calloc(list->selection_buf_size, sizeof(*list->selection_buf));
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if (!list->selection_buf)
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goto error;
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for (i = 0; i < list->menu_stack_size; i++)
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list->menu_stack[i] = (file_list_t*)
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calloc(1, sizeof(*list->menu_stack[i]));
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for (i = 0; i < list->selection_buf_size; i++)
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list->selection_buf[i] = (file_list_t*)
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calloc(1, sizeof(*list->selection_buf[i]));
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return list;
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error:
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menu_list_free(list);
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return NULL;
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}
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static file_list_t *menu_list_get(menu_list_t *list, unsigned idx)
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{
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if (!list)
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return NULL;
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return list->menu_stack[idx];
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}
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static file_list_t *menu_list_get_selection(menu_list_t *list, unsigned idx)
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{
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if (!list)
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return NULL;
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return list->selection_buf[idx];
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}
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static size_t menu_list_get_stack_size(menu_list_t *list, size_t idx)
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{
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if (!list)
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return 0;
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return file_list_get_size(list->menu_stack[idx]);
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}
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static int menu_list_flush_stack_type(const char *needle, const char *label,
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unsigned type, unsigned final_type)
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{
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return needle ? !string_is_equal(needle, label) : (type != final_type);
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}
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static bool menu_list_pop_stack(menu_list_t *list,
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size_t idx, size_t *directory_ptr, bool animate)
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{
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menu_ctx_list_t list_info;
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bool refresh = false;
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file_list_t *menu_list = menu_list_get(list, (unsigned)idx);
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if (!list)
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return false;
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if (menu_list_get_stack_size(list, idx) <= 1)
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return false;
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list_info.type = MENU_LIST_PLAIN;
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list_info.action = 0;
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if (animate)
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menu_driver_list_cache(&list_info);
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if (menu_list->size != 0)
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{
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menu_ctx_list_t list_info;
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list_info.list = menu_list;
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list_info.idx = menu_list->size - 1;
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list_info.list_size = menu_list->size - 1;
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menu_driver_ctl(RARCH_MENU_CTL_LIST_FREE, &list_info);
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}
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file_list_pop(menu_list, directory_ptr);
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menu_driver_list_set_selection(menu_list);
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if (animate)
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menu_entries_ctl(MENU_ENTRIES_CTL_SET_REFRESH, &refresh);
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return true;
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}
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static void menu_list_flush_stack(menu_list_t *list,
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size_t idx, const char *needle, unsigned final_type)
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{
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bool refresh = false;
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const char *path = NULL;
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const char *label = NULL;
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unsigned type = 0;
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size_t entry_idx = 0;
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file_list_t *menu_list = menu_list_get(list, (unsigned)idx);
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if (!list)
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return;
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menu_entries_ctl(MENU_ENTRIES_CTL_SET_REFRESH, &refresh);
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file_list_get_last(menu_list,
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&path, &label, &type, &entry_idx);
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while (menu_list_flush_stack_type(
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needle, label, type, final_type) != 0)
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{
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size_t new_selection_ptr = menu_navigation_get_selection();
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if (!menu_list_pop_stack(list, idx, &new_selection_ptr, 1))
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break;
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menu_navigation_set_selection(new_selection_ptr);
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menu_list = menu_list_get(list, (unsigned)idx);
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file_list_get_last(menu_list,
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&path, &label, &type, &entry_idx);
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}
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}
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void menu_entries_get_at_offset(const file_list_t *list, size_t idx,
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const char **path, const char **label, unsigned *file_type,
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size_t *entry_idx, const char **alt)
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{
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file_list_get_at_offset(list, idx, path, label, file_type, entry_idx);
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file_list_get_alt_at_offset(list, idx, alt);
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}
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static bool menu_entries_clear(file_list_t *list)
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{
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unsigned i;
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if (!list)
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return false;
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menu_driver_list_clear(list);
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for (i = 0; i < list->size; i++)
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file_list_free_actiondata(list, i);
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if (list)
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file_list_clear(list);
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return true;
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}
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/**
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* menu_entries_elem_is_dir:
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* @list : File list handle.
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* @offset : Offset index of element.
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*
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* Is the current entry at offset @offset a directory?
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*
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* Returns: true (1) if entry is a directory, otherwise false (0).
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**/
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static bool menu_entries_elem_is_dir(file_list_t *list,
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unsigned offset)
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{
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unsigned type = 0;
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menu_entries_get_at_offset(list, offset, NULL, NULL, &type, NULL, NULL);
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return type == FILE_TYPE_DIRECTORY;
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}
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/**
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* menu_entries_elem_get_first_char:
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* @list : File list handle.
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* @offset : Offset index of element.
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*
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* Gets the first character of an element in the
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* file list.
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*
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* Returns: first character of element in file list.
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**/
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static int menu_entries_elem_get_first_char(
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file_list_t *list, unsigned offset)
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{
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int ret = 0;
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const char *path = NULL;
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menu_entries_get_at_offset(list, offset,
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NULL, NULL, NULL, NULL, &path);
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if (path != NULL)
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ret = tolower((int)*path);
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/* "Normalize" non-alphabetical entries so they
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* are lumped together for purposes of jumping. */
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if (ret < 'a')
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ret = 'a' - 1;
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else if (ret > 'z')
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ret = 'z' + 1;
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return ret;
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}
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static void menu_entries_build_scroll_indices(file_list_t *list)
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{
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int current;
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bool current_is_dir;
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size_t i, scroll_value = 0;
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if (!list || !list->size)
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return;
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menu_driver_ctl(MENU_NAVIGATION_CTL_CLEAR_SCROLL_INDICES, NULL);
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menu_driver_ctl(MENU_NAVIGATION_CTL_ADD_SCROLL_INDEX, &scroll_value);
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current = menu_entries_elem_get_first_char(list, 0);
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current_is_dir = menu_entries_elem_is_dir(list, 0);
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for (i = 1; i < list->size; i++)
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{
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int first = menu_entries_elem_get_first_char(list, (unsigned)i);
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bool is_dir = menu_entries_elem_is_dir(list, (unsigned)i);
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if ((current_is_dir && !is_dir) || (first > current))
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menu_driver_ctl(MENU_NAVIGATION_CTL_ADD_SCROLL_INDEX, &i);
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current = first;
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current_is_dir = is_dir;
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}
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scroll_value = list->size - 1;
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menu_driver_ctl(MENU_NAVIGATION_CTL_ADD_SCROLL_INDEX, &scroll_value);
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}
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/**
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* Before a refresh, we could have deleted a
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* file on disk, causing selection_ptr to
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* suddendly be out of range.
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*
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* Ensure it doesn't overflow.
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**/
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static bool menu_entries_refresh(void *data)
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{
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size_t list_size;
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file_list_t *list = (file_list_t*)data;
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size_t selection = menu_navigation_get_selection();
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menu_entries_build_scroll_indices(list);
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list_size = menu_entries_get_size();
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if ((selection >= list_size) && list_size)
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{
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size_t idx = list_size - 1;
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menu_navigation_set_selection(idx);
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menu_driver_navigation_set(true);
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}
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else if (!list_size)
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{
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bool pending_push = true;
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menu_driver_ctl(MENU_NAVIGATION_CTL_CLEAR, &pending_push);
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}
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return true;
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}
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/* Sets title to what the name of the current menu should be. */
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int menu_entries_get_title(char *s, size_t len)
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{
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unsigned menu_type = 0;
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const char *path = NULL;
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const char *label = NULL;
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enum msg_hash_enums enum_idx = MSG_UNKNOWN;
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menu_file_list_cbs_t *cbs = menu_entries_get_last_stack_actiondata();
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if (!cbs)
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return -1;
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menu_entries_get_last_stack(&path, &label, &menu_type, &enum_idx, NULL);
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if (cbs && cbs->action_get_title)
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return cbs->action_get_title(path, label, menu_type, s, len);
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return 0;
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}
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int menu_entries_get_core_name(char *s, size_t len)
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{
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struct retro_system_info *system = runloop_get_libretro_system_info();
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const char *core_name = NULL;
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if (system)
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core_name = system->library_name;
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if (string_is_empty(core_name) && system)
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core_name = system->library_name;
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if (string_is_empty(core_name))
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core_name = msg_hash_to_str(MENU_ENUM_LABEL_VALUE_NO_CORE);
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snprintf(s, len, "%s", core_name);
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return 0;
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}
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/* Sets 's' to the name of the current core
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* (shown at the top of the UI). */
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int menu_entries_get_core_title(char *s, size_t len)
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{
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struct retro_system_info *system = runloop_get_libretro_system_info();
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const char *core_name = system ? system->library_name : NULL;
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const char *core_version = system ? system->library_version : NULL;
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#if _MSC_VER == 1200
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const char *extra_version = " msvc6";
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#elif _MSC_VER == 1300
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const char *extra_version = " msvc2002";
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#elif _MSC_VER == 1310
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const char *extra_version = " msvc2003";
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#elif _MSC_VER == 1400
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const char *extra_version = " msvc2005";
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#elif _MSC_VER == 1500
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const char *extra_version = " msvc2008";
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#elif _MSC_VER == 1600
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const char *extra_version = " msvc2010";
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#elif _MSC_VER == 1700
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const char *extra_version = " msvc2012";
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#elif _MSC_VER == 1800
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const char *extra_version = " msvc2013";
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#elif _MSC_VER == 1900
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const char *extra_version = " msvc2015";
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#elif _MSC_VER >= 1910 && _MSC_VER < 2000
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const char *extra_version = " msvc2017";
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#else
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const char *extra_version = "";
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#endif
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if (string_is_empty(core_name))
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core_name = msg_hash_to_str(MENU_ENUM_LABEL_VALUE_NO_CORE);
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if (!core_version)
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core_version = "";
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snprintf(s, len, "%s%s - %s %s", PACKAGE_VERSION, extra_version,
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core_name, core_version);
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return 0;
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}
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file_list_t *menu_entries_get_menu_stack_ptr(size_t idx)
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{
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menu_list_t *menu_list = menu_entries_list;
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if (!menu_list)
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return NULL;
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return menu_list_get(menu_list, (unsigned)idx);
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}
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file_list_t *menu_entries_get_selection_buf_ptr(size_t idx)
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{
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menu_list_t *menu_list = menu_entries_list;
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if (!menu_list)
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return NULL;
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return menu_list_get_selection(menu_list, (unsigned)idx);
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}
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|
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static bool menu_entries_init(void)
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{
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if (!menu_entries_ctl(MENU_ENTRIES_CTL_LIST_INIT, NULL))
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goto error;
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|
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if (!menu_entries_ctl(MENU_ENTRIES_CTL_SETTINGS_INIT, NULL))
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goto error;
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return true;
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|
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error:
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menu_entries_ctl(MENU_ENTRIES_CTL_LIST_DEINIT, NULL);
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menu_entries_ctl(MENU_ENTRIES_CTL_SETTINGS_DEINIT, NULL);
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return false;
|
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}
|
|
|
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void menu_entries_set_checked(file_list_t *list, size_t entry_idx,
|
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bool checked)
|
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{
|
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menu_file_list_cbs_t *cbs = (menu_file_list_cbs_t*)file_list_get_actiondata_at_offset(list, entry_idx);
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|
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if (cbs)
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cbs->checked = checked;
|
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}
|
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|
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void menu_entries_append(file_list_t *list, const char *path, const char *label,
|
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unsigned type, size_t directory_ptr, size_t entry_idx)
|
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{
|
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menu_ctx_list_t list_info;
|
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size_t idx;
|
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const char *menu_path = NULL;
|
|
menu_file_list_cbs_t *cbs = NULL;
|
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if (!list || !label)
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return;
|
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|
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file_list_append(list, path, label, type, directory_ptr, entry_idx);
|
|
|
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menu_entries_get_last_stack(&menu_path, NULL, NULL, NULL, NULL);
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|
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idx = list->size - 1;
|
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|
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list_info.list = list;
|
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list_info.path = path;
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list_info.fullpath = NULL;
|
|
|
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if (!string_is_empty(menu_path))
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list_info.fullpath = strdup(menu_path);
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|
|
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list_info.label = label;
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list_info.idx = idx;
|
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list_info.entry_type = type;
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|
|
menu_driver_list_insert(&list_info);
|
|
|
|
if (list_info.fullpath)
|
|
free(list_info.fullpath);
|
|
|
|
file_list_free_actiondata(list, idx);
|
|
cbs = (menu_file_list_cbs_t*)
|
|
calloc(1, sizeof(menu_file_list_cbs_t));
|
|
|
|
if (!cbs)
|
|
return;
|
|
|
|
file_list_set_actiondata(list, idx, cbs);
|
|
|
|
cbs->enum_idx = MSG_UNKNOWN;
|
|
cbs->setting = menu_setting_find(label);
|
|
|
|
menu_cbs_init(list, cbs, path, label, type, idx);
|
|
}
|
|
|
|
void menu_entries_append_enum(file_list_t *list, const char *path,
|
|
const char *label,
|
|
enum msg_hash_enums enum_idx,
|
|
unsigned type, size_t directory_ptr, size_t entry_idx)
|
|
{
|
|
menu_ctx_list_t list_info;
|
|
size_t idx;
|
|
const char *menu_path = NULL;
|
|
menu_file_list_cbs_t *cbs = NULL;
|
|
if (!list || !label)
|
|
return;
|
|
|
|
file_list_append(list, path, label, type, directory_ptr, entry_idx);
|
|
|
|
menu_entries_get_last_stack(&menu_path, NULL, NULL, NULL, NULL);
|
|
|
|
idx = list->size - 1;
|
|
|
|
list_info.fullpath = NULL;
|
|
|
|
if (!string_is_empty(menu_path))
|
|
list_info.fullpath = strdup(menu_path);
|
|
list_info.list = list;
|
|
list_info.path = path;
|
|
list_info.label = label;
|
|
list_info.idx = idx;
|
|
list_info.entry_type = type;
|
|
|
|
menu_driver_list_insert(&list_info);
|
|
|
|
if (list_info.fullpath)
|
|
free(list_info.fullpath);
|
|
|
|
file_list_free_actiondata(list, idx);
|
|
cbs = (menu_file_list_cbs_t*)
|
|
calloc(1, sizeof(menu_file_list_cbs_t));
|
|
|
|
if (!cbs)
|
|
return;
|
|
|
|
file_list_set_actiondata(list, idx, cbs);
|
|
|
|
cbs->enum_idx = enum_idx;
|
|
|
|
if (enum_idx != MENU_ENUM_LABEL_PLAYLIST_ENTRY
|
|
&& enum_idx != MENU_ENUM_LABEL_PLAYLIST_COLLECTION_ENTRY
|
|
&& enum_idx != MENU_ENUM_LABEL_RDB_ENTRY) {
|
|
cbs->setting = menu_setting_find_enum(enum_idx);
|
|
}
|
|
|
|
menu_cbs_init(list, cbs, path, label, type, idx);
|
|
}
|
|
|
|
void menu_entries_prepend(file_list_t *list, const char *path, const char *label,
|
|
enum msg_hash_enums enum_idx,
|
|
unsigned type, size_t directory_ptr, size_t entry_idx)
|
|
{
|
|
menu_ctx_list_t list_info;
|
|
size_t idx;
|
|
const char *menu_path = NULL;
|
|
menu_file_list_cbs_t *cbs = NULL;
|
|
if (!list || !label)
|
|
return;
|
|
|
|
file_list_prepend(list, path, label, type, directory_ptr, entry_idx);
|
|
|
|
menu_entries_get_last_stack(&menu_path, NULL, NULL, NULL, NULL);
|
|
|
|
idx = 0;
|
|
|
|
list_info.fullpath = NULL;
|
|
|
|
if (!string_is_empty(menu_path))
|
|
list_info.fullpath = strdup(menu_path);
|
|
list_info.list = list;
|
|
list_info.path = path;
|
|
list_info.label = label;
|
|
list_info.idx = idx;
|
|
list_info.entry_type = type;
|
|
|
|
menu_driver_list_insert(&list_info);
|
|
|
|
if (list_info.fullpath)
|
|
free(list_info.fullpath);
|
|
|
|
file_list_free_actiondata(list, idx);
|
|
cbs = (menu_file_list_cbs_t*)
|
|
calloc(1, sizeof(menu_file_list_cbs_t));
|
|
|
|
if (!cbs)
|
|
return;
|
|
|
|
file_list_set_actiondata(list, idx, cbs);
|
|
|
|
cbs->enum_idx = enum_idx;
|
|
cbs->setting = menu_setting_find_enum(cbs->enum_idx);
|
|
|
|
menu_cbs_init(list, cbs, path, label, type, idx);
|
|
}
|
|
|
|
menu_file_list_cbs_t *menu_entries_get_last_stack_actiondata(void)
|
|
{
|
|
menu_list_t *menu_list = menu_entries_list;
|
|
if (!menu_list)
|
|
return NULL;
|
|
return (menu_file_list_cbs_t*)file_list_get_last_actiondata(
|
|
menu_list_get(menu_list, 0));
|
|
}
|
|
|
|
void menu_entries_get_last_stack(const char **path, const char **label,
|
|
unsigned *file_type, enum msg_hash_enums *enum_idx, size_t *entry_idx)
|
|
{
|
|
menu_file_list_cbs_t *cbs = NULL;
|
|
menu_list_t *menu_list = menu_entries_list;
|
|
if (!menu_list)
|
|
return;
|
|
|
|
file_list_get_last(menu_list_get(menu_list, 0),
|
|
path, label, file_type, entry_idx);
|
|
cbs = menu_entries_get_last_stack_actiondata();
|
|
if (cbs && enum_idx)
|
|
*enum_idx = cbs->enum_idx;
|
|
}
|
|
|
|
void menu_entries_flush_stack(const char *needle, unsigned final_type)
|
|
{
|
|
menu_list_t *menu_list = menu_entries_list;
|
|
if (menu_list)
|
|
menu_list_flush_stack(menu_list, 0, needle, final_type);
|
|
}
|
|
|
|
void menu_entries_pop_stack(size_t *ptr, size_t idx, bool animate)
|
|
{
|
|
menu_list_t *menu_list = menu_entries_list;
|
|
if (menu_list)
|
|
menu_list_pop_stack(menu_list, idx, ptr, animate);
|
|
}
|
|
|
|
size_t menu_entries_get_stack_size(size_t idx)
|
|
{
|
|
menu_list_t *menu_list = menu_entries_list;
|
|
if (!menu_list)
|
|
return 0;
|
|
return menu_list_get_stack_size(menu_list, idx);
|
|
}
|
|
|
|
size_t menu_entries_get_size(void)
|
|
{
|
|
menu_list_t *menu_list = menu_entries_list;
|
|
if (!menu_list)
|
|
return 0;
|
|
return file_list_get_size(menu_list_get_selection(menu_list, 0));
|
|
}
|
|
|
|
rarch_setting_t *menu_entries_get_setting(uint32_t i)
|
|
{
|
|
file_list_t *selection_buf = menu_entries_get_selection_buf_ptr(0);
|
|
menu_file_list_cbs_t *cbs = selection_buf ?
|
|
(menu_file_list_cbs_t*)file_list_get_actiondata_at_offset(selection_buf, i) : NULL;
|
|
|
|
if (!cbs)
|
|
return NULL;
|
|
return cbs->setting;
|
|
}
|
|
|
|
bool menu_entries_ctl(enum menu_entries_ctl_state state, void *data)
|
|
{
|
|
switch (state)
|
|
{
|
|
case MENU_ENTRIES_CTL_DEINIT:
|
|
menu_entries_ctl(MENU_ENTRIES_CTL_SETTINGS_DEINIT, NULL);
|
|
menu_entries_ctl(MENU_ENTRIES_CTL_LIST_DEINIT, NULL);
|
|
|
|
menu_entries_need_refresh = false;
|
|
menu_entries_nonblocking_refresh = false;
|
|
menu_entries_begin = 0;
|
|
break;
|
|
case MENU_ENTRIES_CTL_NEEDS_REFRESH:
|
|
if (menu_entries_nonblocking_refresh)
|
|
return false;
|
|
if (!menu_entries_need_refresh)
|
|
return false;
|
|
break;
|
|
case MENU_ENTRIES_CTL_LIST_GET:
|
|
{
|
|
menu_list_t **list = (menu_list_t**)data;
|
|
if (!list)
|
|
return false;
|
|
*list = menu_entries_list;
|
|
}
|
|
return true;
|
|
case MENU_ENTRIES_CTL_LIST_DEINIT:
|
|
if (menu_entries_list)
|
|
menu_list_free(menu_entries_list);
|
|
menu_entries_list = NULL;
|
|
break;
|
|
case MENU_ENTRIES_CTL_LIST_INIT:
|
|
if (!(menu_entries_list = (menu_list_t*)menu_list_new()))
|
|
return false;
|
|
break;
|
|
case MENU_ENTRIES_CTL_SETTINGS_GET:
|
|
{
|
|
rarch_setting_t **settings = (rarch_setting_t**)data;
|
|
if (!settings)
|
|
return false;
|
|
*settings = menu_entries_list_settings;
|
|
}
|
|
break;
|
|
case MENU_ENTRIES_CTL_SETTINGS_DEINIT:
|
|
menu_setting_free(menu_entries_list_settings);
|
|
if (menu_entries_list_settings)
|
|
free(menu_entries_list_settings);
|
|
menu_entries_list_settings = NULL;
|
|
break;
|
|
case MENU_ENTRIES_CTL_SETTINGS_INIT:
|
|
menu_setting_ctl(MENU_SETTING_CTL_NEW, &menu_entries_list_settings);
|
|
|
|
if (!menu_entries_list_settings)
|
|
return false;
|
|
break;
|
|
case MENU_ENTRIES_CTL_SET_REFRESH:
|
|
{
|
|
bool *nonblocking = (bool*)data;
|
|
|
|
if (*nonblocking)
|
|
menu_entries_nonblocking_refresh = true;
|
|
else
|
|
menu_entries_need_refresh = true;
|
|
}
|
|
break;
|
|
case MENU_ENTRIES_CTL_UNSET_REFRESH:
|
|
{
|
|
bool *nonblocking = (bool*)data;
|
|
|
|
if (*nonblocking)
|
|
menu_entries_nonblocking_refresh = false;
|
|
else
|
|
menu_entries_need_refresh = false;
|
|
}
|
|
break;
|
|
case MENU_ENTRIES_CTL_SET_START:
|
|
{
|
|
size_t *idx = (size_t*)data;
|
|
if (idx)
|
|
menu_entries_begin = *idx;
|
|
}
|
|
case MENU_ENTRIES_CTL_START_GET:
|
|
{
|
|
size_t *idx = (size_t*)data;
|
|
if (!idx)
|
|
return 0;
|
|
|
|
*idx = menu_entries_begin;
|
|
}
|
|
break;
|
|
case MENU_ENTRIES_CTL_REFRESH:
|
|
if (!data)
|
|
return false;
|
|
return menu_entries_refresh(data);
|
|
case MENU_ENTRIES_CTL_CLEAR:
|
|
return menu_entries_clear((file_list_t*)data);
|
|
case MENU_ENTRIES_CTL_INIT:
|
|
return menu_entries_init();
|
|
case MENU_ENTRIES_CTL_SHOW_BACK:
|
|
/* Returns true if a Back button should be shown
|
|
* (i.e. we are at least
|
|
* one level deep in the menu hierarchy). */
|
|
return (menu_entries_get_stack_size(0) > 1);
|
|
case MENU_ENTRIES_CTL_NONE:
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return true;
|
|
}
|