sngrep/src/keybinding.h

239 lines
5.8 KiB
C

/**************************************************************************
**
** sngrep - SIP Messages flow viewer
**
** Copyright (C) 2013-2018 Ivan Alonso (Kaian)
** Copyright (C) 2013-2018 Irontec SL. All rights reserved.
**
** This program 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 Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
**
****************************************************************************/
/**
* @file option.h
* @author Ivan Alonso [aka Kaian] <kaian@irontec.com>
*
* @brief Functions to manage keybindings
*
* sngrep keybindings are associated with actions. Each action can store multiple
* keybindings.
* Keybindings configured by user using *key* directive of sngreprc file,
* in the format:
*
* key ui_action keycode
*
* keycode must be a letter (lowercase or uppercase) or a ^ sign with an uppercase
* letter when Ctrl modifier is used.
*
*/
#ifndef __SNGREP_KEYBINDING_H_
#define __SNGREP_KEYBINDING_H_
//! Number of keybindings per action
#define MAX_BINDINGS 5
//! Some undefined key codes
#define KEY_CTRL(n) ((n)-64)
#define KEY_ESC 27
#define KEY_INTRO 10
#define KEY_TAB 9
#define KEY_BACKSPACE2 8
#define KEY_BACKSPACE3 127
#define KEY_SPACE ' '
/**
* @brief Available Key actions
*/
enum key_actions {
ACTION_PRINTABLE = 0,
ACTION_UP,
ACTION_DOWN,
ACTION_LEFT,
ACTION_RIGHT,
ACTION_DELETE,
ACTION_BACKSPACE,
ACTION_NPAGE,
ACTION_PPAGE,
ACTION_HNPAGE,
ACTION_HPPAGE,
ACTION_BEGIN,
ACTION_END,
ACTION_PREV_FIELD,
ACTION_NEXT_FIELD,
ACTION_RESIZE_SCREEN,
ACTION_CLEAR,
ACTION_CLEAR_CALLS,
ACTION_CLEAR_CALLS_SOFT,
ACTION_TOGGLE_SYNTAX,
ACTION_CYCLE_COLOR,
ACTION_COMPRESS,
ACTION_SHOW_HOSTNAMES,
ACTION_SHOW_ALIAS,
ACTION_TOGGLE_PAUSE,
ACTION_PREV_SCREEN,
ACTION_SHOW_HELP,
ACTION_SHOW_RAW,
ACTION_SHOW_FLOW,
ACTION_SHOW_FLOW_EX,
ACTION_SHOW_FILTERS,
ACTION_SHOW_COLUMNS,
ACTION_SHOW_SETTINGS,
ACTION_SHOW_STATS,
ACTION_COLUMN_MOVE_UP,
ACTION_COLUMN_MOVE_DOWN,
ACTION_SDP_INFO,
ACTION_DISP_FILTER,
ACTION_SAVE,
ACTION_SELECT,
ACTION_CONFIRM,
ACTION_TOGGLE_MEDIA,
ACTION_ONLY_MEDIA,
ACTION_TOGGLE_RAW,
ACTION_INCREASE_RAW,
ACTION_DECREASE_RAW,
ACTION_RESET_RAW,
ACTION_ONLY_SDP,
ACTION_TOGGLE_HINT,
ACTION_AUTOSCROLL,
ACTION_SORT_PREV,
ACTION_SORT_NEXT,
ACTION_SORT_SWAP,
ACTION_TOGGLE_TIME,
ACTION_SENTINEL
};
//! Shorter declaration of key_binding structure
typedef struct key_binding key_binding_t;
/**
* @brief Struct to hold a keybinding data
*/
struct key_binding {
//! Keybinding action id
int id;
//! Keybinding action name
const char *name;
//! keybindings for this action
int keys[MAX_BINDINGS];
//! How many keys are binded to this action
int bindcnt;
};
/**
* @brief Print configured keybindigs
*/
void
key_bindings_dump();
/**
* @brief Return Keybinding data for a given action
* @return key_binding_t structure pointer or NULL if not found
*/
key_binding_t *
key_binding_data(int action);
/**
* @brief Bind a key to an action
*
* @param action One action defined in @key_actions
* @param key Keycode returned by getch
*/
void
key_bind_action(int action, int key);
/**
* @brief Unbind a key to an action
*
* @param action One action defined in @key_actions
* @param key Keycode returned by getch
*/
void
key_unbind_action(int action, int key);
/**
* @brief Find the next action for a given key
*
* Set start parameter to -1 for start searching the
* first action.
*
* @param action One action defined in @key_actions
* @param key Keycode returned by getch
*/
int
key_find_action(int key, int start);
/**
* @brief Return the action id associate to an action str
*
* This function is used to translate keybindings configuration
* found in sngreprc file to internal Action IDs
*
* @param action Configuration string for an action
* @return action id from @key_actions or -1 if none found
*/
int
key_action_id(const char *action);
/**
* @brief Check if key is a printable ascii character
*
* @return 1 if key is alphanumeric or space
*/
int
key_is_printable(int key);
/**
* @brief Return a Human readable representation of a key
*
* @return Character string representing the key
*/
const char *
key_to_str(int key);
/**
* @brief Parse Human key declaration to curses key
*
* This function is used to translate keybindings configuration
* keys found in sngreprc file into internal ncurses keycodes
*
* @return ncurses keycode for the given key string
*/
int
key_from_str(const char *key);
/**
* @brief Return Human readable key for an action
*
* This function is used to display keybindings in the bottom bar
* of panels. Depending on sngrep configuration it will display the
* first associated keybding with the action or the second one
* (aka alternative).
*
* @param action One action defined in @key_actions
* @return Main/Alt keybinding for the given action
*/
const char *
key_action_key_str(int action);
/**
* @brief Return key value for a given action
*
* @param action One action defined in @key_actions
* @return Main/Alt keybinding for the given action
*/
int
key_action_key(int action);
#endif /* __SNGREP_KEYBINDING_H_ */