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RetroArch/menu/widgets/menu_entry.c

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2011-2017 - Daniel De Matteis
* Copyright (C) 2014-2015 - Jay McCarthy
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <compat/strl.h>
#include <lists/string_list.h>
#include <string/stdstring.h>
#include "menu_input_dialog.h"
#include "../menu_driver.h"
/* This file provides an abstraction of the currently displayed
* menu.
*
* It is organized into an event-based system where the UI companion
* calls this functions and RetroArch responds by changing the global
* state (including arranging for these functions to return different
* values).
*
* Its only interaction back to the UI is to arrange for
* notify_list_loaded on the UI companion.
*/
enum menu_entry_type menu_entry_get_type(uint32_t i)
{
rarch_setting_t *setting = menu_entries_get_setting(i);
/* XXX Really a special kind of ST_ACTION, but this should be changed */
if (menu_setting_ctl(MENU_SETTING_CTL_IS_OF_PATH_TYPE, (void*)setting))
return MENU_ENTRY_PATH;
if (setting)
{
switch (setting_get_type(setting))
{
case ST_BOOL:
return MENU_ENTRY_BOOL;
case ST_BIND:
return MENU_ENTRY_BIND;
case ST_INT:
return MENU_ENTRY_INT;
case ST_UINT:
return MENU_ENTRY_UINT;
case ST_FLOAT:
return MENU_ENTRY_FLOAT;
case ST_PATH:
return MENU_ENTRY_PATH;
case ST_DIR:
return MENU_ENTRY_DIR;
case ST_STRING_OPTIONS:
return MENU_ENTRY_ENUM;
case ST_STRING:
return MENU_ENTRY_STRING;
case ST_HEX:
return MENU_ENTRY_HEX;
default:
break;
}
}
return MENU_ENTRY_ACTION;
}
void menu_entry_free(menu_entry_t *entry)
{
if (!entry)
return;
if (!string_is_empty(entry->label))
free(entry->label);
if (!string_is_empty(entry->rich_label))
free(entry->rich_label);
if (!string_is_empty(entry->sublabel))
free(entry->sublabel);
if (!string_is_empty(entry->path))
free(entry->path);
if (!string_is_empty(entry->value))
free(entry->value);
entry->path = NULL;
entry->label = NULL;
entry->value = NULL;
entry->sublabel = NULL;
entry->rich_label = NULL;
}
void menu_entry_init(menu_entry_t *entry)
{
entry->path = NULL;
entry->label = NULL;
entry->value = NULL;
entry->sublabel = NULL;
entry->rich_label = NULL;
entry->enum_idx = MSG_UNKNOWN;
entry->entry_idx = 0;
entry->idx = 0;
entry->type = 0;
entry->spacing = 0;
}
char *menu_entry_get_path(menu_entry_t *entry)
{
if (!entry || string_is_empty(entry->path))
return NULL;
return strdup(entry->path);
}
char *menu_entry_get_rich_label(menu_entry_t *entry)
{
if (!entry)
return NULL;
if (!string_is_empty(entry->rich_label))
return strdup(entry->rich_label);
if (!string_is_empty(entry->path))
return strdup(entry->path);
return NULL;
}
char *menu_entry_get_sublabel(menu_entry_t *entry)
{
if (!entry || string_is_empty(entry->sublabel))
return NULL;
return strdup(entry->sublabel);
}
void menu_entry_get_label(menu_entry_t *entry, char *s, size_t len)
{
if (!entry || string_is_empty(entry->label))
return;
strlcpy(s, entry->label, len);
}
unsigned menu_entry_get_spacing(menu_entry_t *entry)
{
if (!entry)
return 0;
return entry->spacing;
}
unsigned menu_entry_get_type_new(menu_entry_t *entry)
{
if (!entry)
return 0;
return entry->type;
}
uint32_t menu_entry_get_bool_value(uint32_t i)
{
rarch_setting_t *setting = menu_entries_get_setting(i);
bool *ptr = (bool*)setting_get_ptr(setting);
if (!ptr)
return 0;
return *ptr;
}
struct string_list *menu_entry_enum_values(uint32_t i)
{
rarch_setting_t *setting = menu_entries_get_setting(i);
const char *values = setting->values;
if (!values)
return NULL;
return string_split(values, "|");
}
void menu_entry_enum_set_value_with_string(uint32_t i, const char *s)
{
rarch_setting_t *setting = menu_entries_get_setting(i);
setting_set_with_string_representation(setting, s);
}
int32_t menu_entry_bind_index(uint32_t i)
{
rarch_setting_t *setting = menu_entries_get_setting(i);
if (setting)
return setting->index - 1;
return 0;
}
void menu_entry_bind_key_set(uint32_t i, int32_t value)
{
rarch_setting_t *setting = menu_entries_get_setting(i);
struct retro_keybind *keybind = (struct retro_keybind*)
setting_get_ptr(setting);
if (keybind)
keybind->key = (enum retro_key)value;
}
void menu_entry_bind_joykey_set(uint32_t i, int32_t value)
{
rarch_setting_t *setting = menu_entries_get_setting(i);
struct retro_keybind *keybind = (struct retro_keybind*)
setting_get_ptr(setting);
if (keybind)
keybind->joykey = value;
}
void menu_entry_bind_joyaxis_set(uint32_t i, int32_t value)
{
rarch_setting_t *setting = menu_entries_get_setting(i);
struct retro_keybind *keybind = (struct retro_keybind*)
setting_get_ptr(setting);
if (keybind)
keybind->joyaxis = value;
}
void menu_entry_pathdir_selected(uint32_t i)
{
rarch_setting_t *setting = menu_entries_get_setting(i);
if (menu_setting_ctl(MENU_SETTING_CTL_IS_OF_PATH_TYPE, (void*)setting))
menu_setting_ctl(MENU_SETTING_CTL_ACTION_RIGHT, setting);
}
bool menu_entry_pathdir_allow_empty(uint32_t i)
{
rarch_setting_t *setting = menu_entries_get_setting(i);
uint64_t flags = setting->flags;
return flags & SD_FLAG_ALLOW_EMPTY;
}
uint32_t menu_entry_pathdir_for_directory(uint32_t i)
{
rarch_setting_t *setting = menu_entries_get_setting(i);
uint64_t flags = setting->flags;
return flags & SD_FLAG_PATH_DIR;
}
void menu_entry_pathdir_extensions(uint32_t i, char *s, size_t len)
{
rarch_setting_t *setting = menu_entries_get_setting(i);
const char *values = setting->values;
if (!values)
return;
strlcpy(s, values, len);
}
void menu_entry_reset(uint32_t i)
{
menu_entry_t entry;
menu_entry_init(&entry);
menu_entry_get(&entry, 0, i, NULL, true);
menu_entry_action(&entry, i, MENU_ACTION_START);
}
void menu_entry_get_value(menu_entry_t *entry, char *s, size_t len)
{
if (!entry || string_is_empty(entry->value))
return;
strlcpy(s, entry->value, len);
}
void menu_entry_set_value(uint32_t i, const char *s)
{
rarch_setting_t *setting = menu_entries_get_setting(i);
setting_set_with_string_representation(setting, s);
}
uint32_t menu_entry_num_has_range(uint32_t i)
{
rarch_setting_t *setting = menu_entries_get_setting(i);
uint64_t flags = setting->flags;
return (flags & SD_FLAG_HAS_RANGE);
}
float menu_entry_num_min(uint32_t i)
{
rarch_setting_t *setting = menu_entries_get_setting(i);
double min = setting->min;
return (float)min;
}
float menu_entry_num_max(uint32_t i)
{
rarch_setting_t *setting = menu_entries_get_setting(i);
double max = setting->max;
return (float)max;
}
void menu_entry_get(menu_entry_t *entry, size_t stack_idx,
size_t i, void *userdata, bool use_representation)
{
char newpath[255];
const char *path = NULL;
const char *entry_label = NULL;
menu_file_list_cbs_t *cbs = NULL;
file_list_t *selection_buf = menu_entries_get_selection_buf_ptr(stack_idx);
file_list_t *list = (userdata) ? (file_list_t*)userdata : selection_buf;
newpath[0] = '\0';
if (!list)
return;
file_list_get_at_offset(list, i, &path, &entry_label, &entry->type,
&entry->entry_idx);
cbs = (menu_file_list_cbs_t*)file_list_get_actiondata_at_offset(list, i);
if (cbs)
{
const char *label = NULL;
enum msg_hash_enums enum_idx = MSG_UNKNOWN;
entry->enum_idx = cbs->enum_idx;
menu_entries_get_last_stack(NULL, &label, NULL, &enum_idx, NULL);
if (cbs->action_get_value && use_representation)
{
char tmp[255];
tmp[0] = '\0';
cbs->action_get_value(list,
&entry->spacing, entry->type,
(unsigned)i, label,
tmp,
sizeof(tmp),
entry_label, path,
newpath,
sizeof(newpath)
);
if (!string_is_empty(tmp))
entry->value = strdup(tmp);
}
if (cbs->action_label)
{
char tmp[255];
tmp[0] = '\0';
cbs->action_label(list,
entry->type, (unsigned)i,
label, path,
tmp,
sizeof(tmp));
if (!string_is_empty(tmp))
entry->rich_label = strdup(tmp);
}
if (cbs->action_sublabel)
{
char tmp[255];
tmp[0] = '\0';
cbs->action_sublabel(list,
entry->type, (unsigned)i,
label, path,
tmp,
sizeof(tmp));
if (!string_is_empty(tmp))
entry->sublabel = strdup(tmp);
}
}
entry->idx = (unsigned)i;
if (!string_is_empty(path) && !use_representation)
strlcpy(newpath, path, sizeof(newpath));
else if (cbs && cbs->setting && cbs->setting->enum_value_idx != MSG_UNKNOWN
&& !cbs->setting->dont_use_enum_idx_representation)
strlcpy(newpath,
msg_hash_to_str(cbs->setting->enum_value_idx),
sizeof(newpath));
if (!string_is_empty(newpath))
entry->path = strdup(newpath);
if (!string_is_empty(entry_label))
entry->label = strdup(entry_label);
}
bool menu_entry_is_currently_selected(unsigned id)
{
return (id == menu_navigation_get_selection());
}
/* Performs whatever actions are associated with menu entry 'i'.
*
* This is the most important function because it does all the work
* associated with clicking on things in the UI.
*
* This includes loading cores and updating the
* currently displayed menu. */
int menu_entry_select(uint32_t i)
{
menu_entry_t entry;
menu_navigation_set_selection(i);
menu_entry_init(&entry);
menu_entry_get(&entry, 0, i, NULL, false);
return menu_entry_action(&entry, i, MENU_ACTION_SELECT);
}
int menu_entry_action(menu_entry_t *entry, unsigned i, enum menu_action action)
{
int ret = 0;
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;
switch (action)
{
case MENU_ACTION_UP:
if (cbs && cbs->action_up)
ret = cbs->action_up(entry->type, entry->label);
break;
case MENU_ACTION_DOWN:
if (cbs && cbs->action_down)
ret = cbs->action_down(entry->type, entry->label);
break;
case MENU_ACTION_SCROLL_UP:
menu_driver_ctl(MENU_NAVIGATION_CTL_DESCEND_ALPHABET, NULL);
break;
case MENU_ACTION_SCROLL_DOWN:
menu_driver_ctl(MENU_NAVIGATION_CTL_ASCEND_ALPHABET, NULL);
break;
case MENU_ACTION_CANCEL:
if (cbs && cbs->action_cancel)
ret = cbs->action_cancel(entry->path,
entry->label, entry->type, i);
break;
case MENU_ACTION_OK:
if (cbs && cbs->action_ok)
ret = cbs->action_ok(entry->path,
entry->label, entry->type, i, entry->entry_idx);
break;
case MENU_ACTION_START:
if (cbs && cbs->action_start)
ret = cbs->action_start(entry->type, entry->label);
break;
case MENU_ACTION_LEFT:
if (cbs && cbs->action_left)
ret = cbs->action_left(entry->type, entry->label, false);
break;
case MENU_ACTION_RIGHT:
if (cbs && cbs->action_right)
ret = cbs->action_right(entry->type, entry->label, false);
break;
case MENU_ACTION_INFO:
if (cbs && cbs->action_info)
ret = cbs->action_info(entry->type, entry->label);
break;
case MENU_ACTION_SELECT:
if (cbs && cbs->action_select)
ret = cbs->action_select(entry->path,
entry->label, entry->type, i);
break;
case MENU_ACTION_SEARCH:
menu_input_dialog_start_search();
break;
case MENU_ACTION_SCAN:
if (cbs && cbs->action_scan)
ret = cbs->action_scan(entry->path,
entry->label, entry->type, i);
break;
default:
break;
}
cbs = selection_buf ? (menu_file_list_cbs_t*)file_list_get_actiondata_at_offset(selection_buf, i) : NULL;
if (menu_entries_ctl(MENU_ENTRIES_CTL_NEEDS_REFRESH, NULL))
{
if (cbs && cbs->action_refresh)
{
bool refresh = false;
file_list_t *menu_stack = menu_entries_get_menu_stack_ptr(0);
cbs->action_refresh(selection_buf, menu_stack);
menu_entries_ctl(MENU_ENTRIES_CTL_UNSET_REFRESH, &refresh);
}
}
return ret;
}
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