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/***************************************************************************
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menu.h - description
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-------------------
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Copyright : (C) 2004-2025 by Leaflet
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Email : leaflet@leafok.com
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 3 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef _MENU_H_
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#define _MENU_H_
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#include "common.h"
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#include "trie_dict.h"
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#include "bbs_cmd.h"
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#include <stdint.h>
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#include <sys/shm.h>
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#define MAX_MENU_NAME_LENGTH 30
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#define MAX_ITEMS_PER_MENU 256
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#define MAX_MENUITEM_NAME_LENGTH 256
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#define MAX_MENUITEM_TEXT_LENGTH 100
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#define MAX_MENUITEM_ACTION_LENGTH 30
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#define MAX_MENUTITLE_TEXT_LENGTH 50
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#define MAX_MENU_SCR_NAME_LENGTH 20
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#define MAX_MENU_SCR_BUF_LENGTH 2000
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#define MAX_MENUS 256
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#define MAX_MENUITEMS 5120
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#define MAX_MENU_DEPTH 50
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typedef uint64_t MENU_ID;
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typedef uint64_t MENU_ITEM_ID;
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typedef uint64_t MENU_SCREEN_ID;
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struct menu_item_t
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{
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int16_t row, col;
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char action[MAX_MENUITEM_ACTION_LENGTH];
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MENU_ID action_menu_id;
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bbs_cmd_handler action_cmd_handler;
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int8_t submenu;
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int priv, level;
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char name[MAX_MENUITEM_NAME_LENGTH];
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char text[MAX_MENUITEM_TEXT_LENGTH];
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};
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typedef struct menu_item_t MENU_ITEM;
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struct menu_title_t
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{
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int16_t row, col;
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int8_t show;
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char text[MAX_MENUTITLE_TEXT_LENGTH];
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};
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typedef struct menu_title_t MENU_TITLE;
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struct menu_screen_t
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{
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char name[MAX_MENU_SCR_NAME_LENGTH];
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int64_t buf_offset;
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int64_t buf_length;
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};
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typedef struct menu_screen_t MENU_SCREEN;
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struct menu_t
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{
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char name[MAX_MENU_NAME_LENGTH];
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MENU_TITLE title;
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char screen_name[MAX_MENU_SCR_NAME_LENGTH];
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MENU_SCREEN_ID screen_id;
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int8_t screen_show;
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int16_t screen_row, screen_col;
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MENU_ITEM_ID items[MAX_ITEMS_PER_MENU];
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int16_t item_count;
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int16_t page_row, page_col;
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int16_t page_item_limit;
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int8_t use_filter;
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bbs_cmd_handler filter_handler;
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};
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typedef struct menu_t MENU;
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struct menu_set_t
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{
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int shmid;
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void *p_reserved;
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void *p_menu_pool;
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void *p_menu_item_pool;
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void *p_menu_screen_pool;
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char *p_menu_screen_buf;
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char *p_menu_screen_buf_free;
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int16_t menu_count;
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int16_t menu_item_count;
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int16_t menu_screen_count;
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TRIE_NODE *p_menu_name_dict;
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TRIE_NODE *p_menu_screen_dict;
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MENU_ID menu_id_path[MAX_MENU_DEPTH];
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int16_t menu_item_pos[MAX_MENU_DEPTH];
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int16_t choose_step;
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int8_t menu_item_display[MAX_ITEMS_PER_MENU];
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int16_t menu_item_r_row[MAX_ITEMS_PER_MENU];
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int16_t menu_item_r_col[MAX_ITEMS_PER_MENU];
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int16_t menu_item_page_id[MAX_ITEMS_PER_MENU];
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};
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typedef struct menu_set_t MENU_SET;
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extern MENU_SET *p_bbs_menu;
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extern int load_menu(MENU_SET *p_menu_set, const char *conf_file);
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extern int unload_menu(MENU_SET *p_menu_set);
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extern int set_menu_shm_readonly(MENU_SET *p_menu_set);
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extern int detach_menu_shm(MENU_SET *p_menu_set);
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extern int display_menu_cursor(MENU_SET *p_menu_set, int show);
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extern int menu_control(MENU_SET *p_menu_set, int key);
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extern int display_menu(MENU_SET *p_menu_set);
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inline MENU *get_menu(MENU_SET *p_menu_set, const char *menu_name)
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{
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MENU *value = NULL;
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trie_dict_get(p_menu_set->p_menu_name_dict, menu_name, (int64_t *)&value);
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return ((MENU *)value);
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}
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inline MENU *get_menu_by_id(MENU_SET *p_menu_set, MENU_ID menu_id)
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{
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if (menu_id < 0 || menu_id >= p_menu_set->menu_count)
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{
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return NULL;
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}
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return (p_menu_set->p_menu_pool + sizeof(MENU) * menu_id);
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}
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inline MENU_ITEM *get_menu_item_by_id(MENU_SET *p_menu_set, MENU_ITEM_ID menu_item_id)
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{
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if (menu_item_id < 0 || menu_item_id >= p_menu_set->menu_item_count)
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{
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return NULL;
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}
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return (p_menu_set->p_menu_item_pool + sizeof(MENU_ITEM) * menu_item_id);
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}
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inline MENU_SCREEN *get_menu_screen_by_id(MENU_SET *p_menu_set, MENU_SCREEN_ID menu_screen_id)
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{
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if (menu_screen_id < 0 || menu_screen_id >= p_menu_set->menu_screen_count)
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{
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return NULL;
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}
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return (p_menu_set->p_menu_screen_pool + sizeof(MENU_ITEM) * menu_screen_id);
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}
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#endif //_MENU_H_
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