mirror of
https://github.com/libretro/RetroArch.git
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431 lines
12 KiB
C
431 lines
12 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 <compat/strl.h>
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#include <string/string_list.h>
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#include "menu.h"
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#include "menu_display.h"
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/* This file provides an abstraction of the currently displayed
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* menu.
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*
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* It is organized into an event-based system where the UI companion
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* calls this functions and RetroArch responds by changing the global
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* state (including arranging for these functions to return different
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* values).
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*
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* Its only interaction back to the UI is to arrange for
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* notify_list_loaded on the UI companion.
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*/
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/* Clicks the back button */
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int menu_entry_go_back(void)
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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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menu_entries_pop_stack(&new_selection_ptr, 0);
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menu_navigation_ctl(MENU_NAVIGATION_CTL_SET_SELECTION, &new_selection_ptr);
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return 0;
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}
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enum menu_entry_type menu_entry_get_type(uint32_t i)
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{
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rarch_setting_t *setting = menu_entries_get_setting(i);
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/* XXX Really a special kind of ST_ACTION, but this should be changed */
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if (menu_setting_is_of_path_type(setting))
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return MENU_ENTRY_PATH;
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if (setting)
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{
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enum setting_type setting_type = menu_setting_get_type(setting);
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switch (setting_type)
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{
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case ST_BOOL:
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return MENU_ENTRY_BOOL;
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case ST_BIND:
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return MENU_ENTRY_BIND;
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case ST_INT:
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return MENU_ENTRY_INT;
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case ST_UINT:
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return MENU_ENTRY_UINT;
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case ST_FLOAT:
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return MENU_ENTRY_FLOAT;
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case ST_PATH:
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return MENU_ENTRY_PATH;
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case ST_DIR:
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return MENU_ENTRY_DIR;
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case ST_STRING_OPTIONS:
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return MENU_ENTRY_ENUM;
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case ST_STRING:
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return MENU_ENTRY_STRING;
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case ST_HEX:
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return MENU_ENTRY_HEX;
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default:
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break;
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}
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}
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return MENU_ENTRY_ACTION;
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}
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void menu_entry_get_path(uint32_t i, char *s, size_t len)
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{
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menu_entry_t entry = {{0}};
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menu_entry_get(&entry, 0, i, NULL, true);
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strlcpy(s, entry.path, len);
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}
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void menu_entry_get_label(uint32_t i, char *s, size_t len)
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{
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menu_entry_t entry = {{0}};
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menu_entry_get(&entry, 0, i, NULL, true);
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strlcpy(s, entry.label, len);
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}
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unsigned menu_entry_get_spacing(uint32_t i)
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{
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menu_entry_t entry = {{0}};
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menu_entry_get(&entry, 0, i, NULL, true);
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return entry.spacing;
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}
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unsigned menu_entry_get_type_new(uint32_t i)
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{
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menu_entry_t entry = {{0}};
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menu_entry_get(&entry, 0, i, NULL, true);
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return entry.type;
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}
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uint32_t menu_entry_get_bool_value(uint32_t i)
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{
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rarch_setting_t *setting = menu_entries_get_setting(i);
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bool *ptr = (bool*)setting_get_ptr(setting);
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if (!ptr)
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return 0;
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return *ptr;
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}
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struct string_list *menu_entry_enum_values(uint32_t i)
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{
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rarch_setting_t *setting = menu_entries_get_setting(i);
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const char *values = menu_setting_get_values(setting);
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if (!values)
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return NULL;
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return string_split(values, "|");
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}
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void menu_entry_enum_set_value_with_string(uint32_t i, const char *s)
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{
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rarch_setting_t *setting = menu_entries_get_setting(i);
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menu_setting_set_with_string_representation(setting, s);
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}
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int32_t menu_entry_bind_index(uint32_t i)
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{
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rarch_setting_t *setting = menu_entries_get_setting(i);
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uint32_t index = menu_setting_get_index(setting);
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if (index)
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return index - 1;
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return 0;
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}
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void menu_entry_bind_key_set(uint32_t i, int32_t value)
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{
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rarch_setting_t *setting = menu_entries_get_setting(i);
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struct retro_keybind *keybind = (struct retro_keybind*)setting_get_ptr(setting);
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if (keybind)
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keybind->key = (enum retro_key)value;
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}
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void menu_entry_bind_joykey_set(uint32_t i, int32_t value)
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{
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rarch_setting_t *setting = menu_entries_get_setting(i);
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struct retro_keybind *keybind = (struct retro_keybind*)setting_get_ptr(setting);
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if (keybind)
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keybind->joykey = value;
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}
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void menu_entry_bind_joyaxis_set(uint32_t i, int32_t value)
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{
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rarch_setting_t *setting = menu_entries_get_setting(i);
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struct retro_keybind *keybind = (struct retro_keybind*)setting_get_ptr(setting);
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if (keybind)
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keybind->joyaxis = value;
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}
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void menu_entry_pathdir_selected(uint32_t i)
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{
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rarch_setting_t *setting = menu_entries_get_setting(i);
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if (menu_setting_is_of_path_type(setting))
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menu_setting_action_right(setting, false);
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}
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bool menu_entry_pathdir_allow_empty(uint32_t i)
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{
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rarch_setting_t *setting = menu_entries_get_setting(i);
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uint64_t flags = menu_setting_get_flags(setting);
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return flags & SD_FLAG_ALLOW_EMPTY;
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}
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uint32_t menu_entry_pathdir_for_directory(uint32_t i)
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{
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rarch_setting_t *setting = menu_entries_get_setting(i);
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uint64_t flags = menu_setting_get_flags(setting);
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return flags & SD_FLAG_PATH_DIR;
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}
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void menu_entry_pathdir_get_value(uint32_t i, char *s, size_t len)
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{
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menu_entry_t entry = {{0}};
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menu_entry_get(&entry, 0, i, NULL, true);
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strlcpy(s, entry.value, len);
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}
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int menu_entry_pathdir_set_value(uint32_t i, const char *s)
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{
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const char *menu_path = NULL;
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menu_file_list_cbs_t *cbs = menu_entries_get_last_stack_actiondata();
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menu_entries_get_last_stack(&menu_path, NULL, NULL, NULL);
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if (!cbs || !cbs->setting)
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return -1;
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if (menu_setting_get_type(cbs->setting) != ST_DIR)
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return -1;
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menu_setting_set_with_string_representation(cbs->setting, menu_path);
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menu_setting_generic(cbs->setting, false);
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menu_entries_flush_stack(NULL, 49);
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return 0;
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}
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void menu_entry_pathdir_extensions(uint32_t i, char *s, size_t len)
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{
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rarch_setting_t *setting = menu_entries_get_setting(i);
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const char *values = menu_setting_get_values(setting);
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if (!values)
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return;
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strlcpy(s, values, len);
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}
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void menu_entry_reset(uint32_t i)
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{
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menu_entry_t entry = {{0}};
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menu_entry_get(&entry, 0, i, NULL, true);
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menu_entry_action(&entry, i, MENU_ACTION_START);
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}
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void menu_entry_get_value(uint32_t i, char *s, size_t len)
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{
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menu_entry_t entry = {{0}};
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menu_entry_get(&entry, 0, i, NULL, true);
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strlcpy(s, entry.value, len);
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}
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void menu_entry_set_value(uint32_t i, const char *s)
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{
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rarch_setting_t *setting = menu_entries_get_setting(i);
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menu_setting_set_with_string_representation(setting, s);
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}
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uint32_t menu_entry_num_has_range(uint32_t i)
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{
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rarch_setting_t *setting = menu_entries_get_setting(i);
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uint64_t flags = menu_setting_get_flags(setting);
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return (flags & SD_FLAG_HAS_RANGE);
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}
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float menu_entry_num_min(uint32_t i)
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{
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rarch_setting_t *setting = menu_entries_get_setting(i);
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double min = menu_setting_get_min(setting);
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return (float)min;
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}
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float menu_entry_num_max(uint32_t i)
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{
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rarch_setting_t *setting = menu_entries_get_setting(i);
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double max = menu_setting_get_max(setting);
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return (float)max;
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}
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void menu_entry_get(menu_entry_t *entry, size_t stack_idx,
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size_t i, void *userdata, bool use_representation)
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{
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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(stack_idx);
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file_list_t *list = selection_buf;
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if (userdata)
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list = (file_list_t*)userdata;
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if (!list)
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return;
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menu_entries_get_at_offset(list, i, &path, &entry_label, &entry->type,
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&entry->entry_idx, NULL);
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cbs = menu_entries_get_actiondata_at_offset(list, i);
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if (cbs && cbs->action_get_value && use_representation)
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{
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const char *label = NULL;
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menu_entries_get_last_stack(NULL, &label, NULL, NULL);
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cbs->action_get_value(list,
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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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}
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entry->idx = i;
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if (path && !use_representation)
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strlcpy(entry->path, path, sizeof(entry->path));
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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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bool menu_entry_is_currently_selected(unsigned id)
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{
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size_t selection;
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if (!menu_navigation_ctl(MENU_NAVIGATION_CTL_GET_SELECTION, &selection))
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return false;
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return (id == selection);
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}
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/* Performs whatever actions are associated with menu entry 'i'.
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*
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* This is the most important function because it does all the work
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* associated with clicking on things in the UI.
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*
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* This includes loading cores and updating the
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* currently displayed menu. */
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int menu_entry_select(uint32_t i)
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{
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menu_entry_t entry = {{0}};
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menu_navigation_ctl(MENU_NAVIGATION_CTL_SET_SELECTION, &i);
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menu_entry_get(&entry, 0, i, NULL, false);
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return menu_entry_action(&entry, i, MENU_ACTION_SELECT);
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}
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int menu_entry_action(menu_entry_t *entry, unsigned i, enum menu_action action)
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{
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int ret = 0;
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file_list_t *selection_buf = menu_entries_get_selection_buf_ptr(0);
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menu_file_list_cbs_t *cbs = menu_entries_get_actiondata_at_offset(selection_buf, i);
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switch (action)
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{
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case MENU_ACTION_UP:
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if (cbs && cbs->action_up)
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ret = cbs->action_up(entry->type, entry->label);
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break;
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case MENU_ACTION_DOWN:
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if (cbs && cbs->action_down)
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ret = cbs->action_down(entry->type, entry->label);
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break;
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case MENU_ACTION_SCROLL_UP:
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menu_navigation_ctl(MENU_NAVIGATION_CTL_DESCEND_ALPHABET, NULL);
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break;
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case MENU_ACTION_SCROLL_DOWN:
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menu_navigation_ctl(MENU_NAVIGATION_CTL_ASCEND_ALPHABET, NULL);
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break;
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case MENU_ACTION_CANCEL:
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if (cbs && cbs->action_cancel)
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ret = cbs->action_cancel(entry->path, entry->label, entry->type, i);
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break;
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case MENU_ACTION_OK:
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if (cbs && cbs->action_ok)
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ret = cbs->action_ok(entry->path, entry->label, entry->type, i, entry->entry_idx);
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break;
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case MENU_ACTION_START:
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if (cbs && cbs->action_start)
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ret = cbs->action_start(entry->type, entry->label);
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break;
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case MENU_ACTION_LEFT:
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if (cbs && cbs->action_left)
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ret = cbs->action_left(entry->type, entry->label, false);
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break;
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case MENU_ACTION_RIGHT:
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if (cbs && cbs->action_right)
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ret = cbs->action_right(entry->type, entry->label, false);
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break;
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case MENU_ACTION_INFO:
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if (cbs && cbs->action_info)
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ret = cbs->action_info(entry->type, entry->label);
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break;
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case MENU_ACTION_SELECT:
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if (cbs && cbs->action_select)
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ret = cbs->action_select(entry->path, entry->label, entry->type, i);
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break;
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case MENU_ACTION_SEARCH:
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menu_input_ctl(MENU_INPUT_CTL_SEARCH_START, NULL);
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break;
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case MENU_ACTION_SCAN:
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if (cbs && cbs->action_scan)
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ret = cbs->action_scan(entry->path, entry->label, entry->type, i);
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break;
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default:
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break;
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}
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cbs = menu_entries_get_actiondata_at_offset(selection_buf, i);
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if (menu_entries_needs_refresh())
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{
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if (cbs && cbs->action_refresh)
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{
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file_list_t *menu_stack = menu_entries_get_menu_stack_ptr(0);
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cbs->action_refresh(selection_buf, menu_stack);
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menu_entries_unset_refresh(false);
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}
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}
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return ret;
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}
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