mirror of
https://github.com/libretro/RetroArch.git
synced 2024-12-01 04:00:32 +00:00
711 lines
18 KiB
C
711 lines
18 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2014-2015 - Jay McCarthy
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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 "menu_driver.h"
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#include "menu_cbs.h"
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#include "menu_hash.h"
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#include "../general.h"
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#include "../system.h"
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struct menu_list
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{
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file_list_t **menu_stack;
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size_t menu_stack_size;
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file_list_t **selection_buf;
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size_t selection_buf_size;
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};
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struct menu_entries
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{
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/* Flagged when menu entries need to be refreshed */
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bool need_refresh;
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bool nonblocking_refresh;
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size_t begin;
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menu_list_t *menu_list;
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rarch_setting_t *list_settings;
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};
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static menu_entries_t *menu_entries_data;
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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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menu_driver_list_free(list, i, list->size);
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if (list)
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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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unsigned i;
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if (!menu_list)
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return;
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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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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->menu_stack);
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free(menu_list->selection_buf);
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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*)calloc(1, sizeof(*list));
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if (!list)
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return NULL;
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list->menu_stack = (file_list_t**)calloc(1, 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**)calloc(1, sizeof(*list->selection_buf));
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if (!list->selection_buf)
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goto error;
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list->menu_stack_size = 1;
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list->selection_buf_size = 1;
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for (i = 0; i < list->menu_stack_size; i++)
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list->menu_stack[i] = (file_list_t*)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*)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 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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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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void menu_entries_get_last(const file_list_t *list,
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const char **path, const char **label,
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unsigned *file_type, size_t *entry_idx)
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{
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if (list)
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file_list_get_last(list, path, label, file_type, entry_idx);
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}
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void *menu_entries_get_userdata_at_offset(const file_list_t *list, size_t idx)
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{
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if (!list)
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return NULL;
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return file_list_get_userdata_at_offset(list, idx);
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}
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menu_file_list_cbs_t *menu_entries_get_actiondata_at_offset(
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const file_list_t *list, size_t idx)
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{
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if (!list)
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return NULL;
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return (menu_file_list_cbs_t*)
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file_list_get_actiondata_at_offset(list, idx);
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}
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static int menu_entries_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 ? strcmp(needle, label) : (type != final_type);
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}
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static bool menu_list_pop_stack(menu_list_t *list, size_t idx, size_t *directory_ptr)
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{
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file_list_t *menu_list = NULL;
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if (!list)
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return false;
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menu_list = list->menu_stack[idx];
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if (menu_list_get_stack_size(list, idx) <= 1)
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return false;
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menu_driver_list_cache(MENU_LIST_PLAIN, 0);
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if (menu_list->size != 0)
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menu_driver_list_free(menu_list, menu_list->size - 1, menu_list->size - 1);
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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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menu_entries_set_refresh(false);
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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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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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if (!list)
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return;
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menu_entries_set_refresh(false);
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menu_entries_get_last(list->menu_stack[idx],
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&path, &label, &type, &entry_idx);
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while (menu_entries_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;
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menu_navigation_ctl(MENU_NAVIGATION_CTL_GET_SELECTION, &new_selection_ptr);
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if (!menu_list_pop_stack(list, idx, &new_selection_ptr))
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break;
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menu_navigation_ctl(MENU_NAVIGATION_CTL_SET_SELECTION, &new_selection_ptr);
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menu_entries_get_last(list->menu_stack[idx],
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&path, &label, &type, &entry_idx);
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}
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}
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void menu_entries_clear(file_list_t *list)
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{
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unsigned i;
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const menu_ctx_driver_t *driver = menu_ctx_driver_get_ptr();
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if (driver->list_clear)
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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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}
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void menu_entries_set_alt_at_offset(file_list_t *list, size_t idx,
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const char *alt)
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{
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file_list_set_alt_at_offset(list, idx, alt);
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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 == MENU_FILE_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;
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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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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_navigation_ctl(MENU_NAVIGATION_CTL_CLEAR_SCROLL_INDICES, NULL);
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menu_navigation_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, i);
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bool is_dir = menu_entries_elem_is_dir(list, i);
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if ((current_is_dir && !is_dir) || (first > current))
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menu_navigation_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_navigation_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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void menu_entries_refresh(file_list_t *list)
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{
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size_t list_size, selection;
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if (!list)
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return;
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if (!menu_navigation_ctl(MENU_NAVIGATION_CTL_GET_SELECTION, &selection))
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return;
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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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bool scroll = true;
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menu_navigation_ctl(MENU_NAVIGATION_CTL_SET_SELECTION, &idx);
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menu_navigation_ctl(MENU_NAVIGATION_CTL_SET, &scroll);
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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_navigation_ctl(MENU_NAVIGATION_CTL_CLEAR, &pending_push);
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}
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}
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rarch_setting_t *menu_setting_get_ptr(void)
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{
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menu_entries_t *entries = menu_entries_data;
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if (!entries)
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return NULL;
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return entries->list_settings;
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}
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menu_list_t *menu_list_get_ptr(void)
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{
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menu_entries_t *entries = menu_entries_data;
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if (!entries)
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return NULL;
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return entries->menu_list;
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}
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/* Sets the starting index of the menu entry list. */
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void menu_entries_set_start(size_t i)
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{
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menu_entries_t *entries = menu_entries_data;
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if (entries)
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entries->begin = i;
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}
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/* Returns the starting index of the menu entry list. */
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size_t menu_entries_get_start(void)
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{
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menu_entries_t *entries = menu_entries_data;
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if (!entries)
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return 0;
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return entries->begin;
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}
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/* Returns the last index (+1) of the menu entry list. */
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size_t menu_entries_get_end(void)
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{
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return menu_entries_get_size();
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}
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/* Get an entry from the top of the menu stack */
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void menu_entries_get(size_t i, menu_entry_t *entry)
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{
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const char *label = NULL;
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const char *path = NULL;
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const char *entry_label = NULL;
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menu_file_list_cbs_t *cbs = NULL;
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file_list_t *selection_buf = menu_entries_get_selection_buf_ptr(0);
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menu_entries_get_last_stack(NULL, &label, NULL, NULL);
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entry->path[0] = entry->value[0] = entry->label[0] = '\0';
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menu_entries_get_at_offset(selection_buf, i,
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&path, &entry_label, &entry->type, &entry->entry_idx, NULL);
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cbs = menu_entries_get_actiondata_at_offset(selection_buf, i);
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if (cbs && cbs->action_get_value)
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cbs->action_get_value(selection_buf,
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&entry->spacing, entry->type, i, label,
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entry->value, sizeof(entry->value),
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entry_label, path,
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entry->path, sizeof(entry->path));
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entry->idx = i;
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if (entry_label)
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strlcpy(entry->label, entry_label, sizeof(entry->label));
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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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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, 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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/* Returns true if a Back button should be shown (i.e. we are at least
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* one level deep in the menu hierarchy). */
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bool menu_entries_show_back(void)
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{
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return (menu_entries_get_stack_size(0) > 1);
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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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settings_t *settings = config_get_ptr();
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rarch_system_info_t *info = rarch_system_info_get_ptr();
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const char *core_name = g_system_menu.library_name;
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const char *core_version = g_system_menu.library_version;
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if (!settings->menu.core_enable)
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return -1;
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if (!core_name || core_name[0] == '\0')
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core_name = info->info.library_name;
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if (!core_name || core_name[0] == '\0')
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core_name = menu_hash_to_str(MENU_VALUE_NO_CORE);
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if (!core_version)
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core_version = info->info.library_version;
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if (!core_version)
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core_version = "";
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snprintf(s, len, "%s - %s %s", PACKAGE_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_list_get_ptr();
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if (!menu_list)
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return NULL;
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return menu_list->menu_stack[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_list_get_ptr();
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if (!menu_list)
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return NULL;
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return menu_list->selection_buf[idx];
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}
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bool menu_entries_needs_refresh(void)
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{
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menu_entries_t *entries = menu_entries_data;
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if (!entries || entries->nonblocking_refresh)
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return false;
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if (entries->need_refresh)
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return true;
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return false;
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}
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void menu_entries_set_refresh(bool nonblocking)
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{
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menu_entries_t *entries = menu_entries_data;
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if (entries)
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{
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if (nonblocking)
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entries->nonblocking_refresh = true;
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else
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entries->need_refresh = true;
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}
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}
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void menu_entries_unset_refresh(bool nonblocking)
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{
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menu_entries_t *entries = menu_entries_data;
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if (entries)
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{
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if (nonblocking)
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entries->nonblocking_refresh = false;
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else
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entries->need_refresh = false;
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}
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}
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bool menu_entries_init(void *data)
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{
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menu_entries_t *entries = (menu_entries_t*)
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calloc(1, sizeof(*entries));
|
|
|
|
if (!entries)
|
|
goto error;
|
|
|
|
if (!(entries->menu_list = (menu_list_t*)menu_list_new()))
|
|
goto error;
|
|
|
|
menu_entries_data = (struct menu_entries*)entries;
|
|
|
|
entries->list_settings = menu_setting_new();
|
|
|
|
return true;
|
|
|
|
error:
|
|
if (entries)
|
|
free(entries);
|
|
return false;
|
|
}
|
|
|
|
void menu_entries_free(void)
|
|
{
|
|
menu_entries_t *entries = menu_entries_data;
|
|
|
|
if (!entries)
|
|
return;
|
|
|
|
if (entries->list_settings)
|
|
menu_setting_free(entries->list_settings);
|
|
entries->list_settings = NULL;
|
|
|
|
menu_list_free(entries->menu_list);
|
|
entries->menu_list = NULL;
|
|
|
|
free(menu_entries_data);
|
|
menu_entries_data = NULL;
|
|
}
|
|
|
|
void menu_entries_push(file_list_t *list, const char *path, const char *label,
|
|
unsigned type, size_t directory_ptr, size_t entry_idx)
|
|
{
|
|
size_t idx;
|
|
const menu_ctx_driver_t *driver = menu_ctx_driver_get_ptr();
|
|
menu_file_list_cbs_t *cbs = NULL;
|
|
if (!list || !label)
|
|
return;
|
|
|
|
file_list_push(list, path, label, type, directory_ptr, entry_idx);
|
|
|
|
idx = list->size - 1;
|
|
|
|
if (driver->list_insert)
|
|
driver->list_insert(list, path, label, idx);
|
|
|
|
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->setting = menu_setting_find(label);
|
|
|
|
menu_cbs_init(list, cbs, path, label, type, idx);
|
|
}
|
|
|
|
bool menu_entries_increment_selection_buf(void)
|
|
{
|
|
file_list_t **selection_buf = NULL;
|
|
menu_list_t *menu_list = menu_list_get_ptr();
|
|
|
|
if (!menu_list)
|
|
return false;
|
|
|
|
selection_buf = (file_list_t**)realloc(selection_buf, (menu_list->selection_buf_size + 1) * sizeof(*menu_list->selection_buf));
|
|
|
|
if (!selection_buf)
|
|
goto error;
|
|
|
|
menu_list->selection_buf = selection_buf;
|
|
menu_list->selection_buf[menu_list->selection_buf_size] = (file_list_t*)calloc(1, sizeof(*menu_list->selection_buf[menu_list->selection_buf_size]));
|
|
menu_list->selection_buf_size = menu_list->selection_buf_size + 1;
|
|
|
|
return true;
|
|
|
|
error:
|
|
if (selection_buf)
|
|
free(selection_buf);
|
|
return false;
|
|
}
|
|
|
|
bool menu_entries_increment_menu_stack(void)
|
|
{
|
|
file_list_t **menu_stack = NULL;
|
|
menu_list_t *menu_list = menu_list_get_ptr();
|
|
|
|
if (!menu_list)
|
|
return false;
|
|
|
|
menu_stack = (file_list_t**)realloc(menu_stack, (menu_list->menu_stack_size + 1) * sizeof(*menu_list->menu_stack));
|
|
|
|
if (!menu_stack)
|
|
goto error;
|
|
|
|
menu_list->menu_stack = menu_stack;
|
|
menu_list->menu_stack[menu_list->menu_stack_size] = (file_list_t*)calloc(1, sizeof(*menu_list->menu_stack[menu_list->menu_stack_size]));
|
|
menu_list->menu_stack_size = menu_list->menu_stack_size + 1;
|
|
|
|
return true;
|
|
|
|
error:
|
|
if (menu_stack)
|
|
free(menu_stack);
|
|
return false;
|
|
}
|
|
|
|
menu_file_list_cbs_t *menu_entries_get_last_stack_actiondata(void)
|
|
{
|
|
menu_list_t *menu_list = menu_list_get_ptr();
|
|
if (!menu_list)
|
|
return NULL;
|
|
return (menu_file_list_cbs_t*)file_list_get_last_actiondata(menu_list->menu_stack[0]);
|
|
}
|
|
|
|
void menu_entries_get_last_stack(const char **path, const char **label,
|
|
unsigned *file_type, size_t *entry_idx)
|
|
{
|
|
menu_list_t *menu_list = menu_list_get_ptr();
|
|
if (menu_list)
|
|
menu_entries_get_last(menu_list->menu_stack[0], path, label, file_type, entry_idx);
|
|
}
|
|
|
|
void menu_entries_flush_stack(const char *needle, unsigned final_type)
|
|
{
|
|
menu_list_t *menu_list = menu_list_get_ptr();
|
|
if (menu_list)
|
|
menu_list_flush_stack(menu_list, 0, needle, final_type);
|
|
}
|
|
|
|
void menu_entries_pop_stack(size_t *ptr, size_t idx)
|
|
{
|
|
menu_list_t *menu_list = menu_list_get_ptr();
|
|
if (menu_list)
|
|
menu_list_pop_stack(menu_list, idx, ptr);
|
|
}
|
|
|
|
size_t menu_entries_get_stack_size(size_t idx)
|
|
{
|
|
menu_list_t *menu_list = menu_list_get_ptr();
|
|
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_list_get_ptr();
|
|
if (!menu_list)
|
|
return 0;
|
|
return file_list_get_size(menu_list->selection_buf[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 = menu_entries_get_actiondata_at_offset(selection_buf, i);
|
|
|
|
if (!cbs)
|
|
return NULL;
|
|
return cbs->setting;
|
|
}
|