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keys.c
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keys.c
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/*
* MOC - music on console
* Copyright (C) 2004 - 2006 Damian Pietras <daper@daper.net>
*
* 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 2 of the License, or
* (at your option) any later version.
*
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <string.h>
#include <strings.h>
#include <assert.h>
#include <stdio.h>
#include <errno.h>
#include <ctype.h>
#define DEBUG
#include "common.h"
#include "keys.h"
#include "interface.h"
#include "interface_elements.h"
#include "options.h"
#include "log.h"
#include "files.h"
/* ^c version of c */
#ifndef CTRL
# define CTRL(c) ((c) & CTRL_KEY_CODE)
#endif
struct command
{
enum key_cmd cmd; /* the command */
char *name; /* name of the command (in keymap file) */
char *help; /* help string for the command */
enum key_context context; /* context - where the command isused */
int keys[6]; /* array of keys ended with -1 */
int default_keys; /* number of default keys */
};
/* Array of commands - each element is a list of keys for this command. */
static struct command commands[] = {
{
KEY_CMD_QUIT_CLIENT,
"quit_client",
"Detach MOC from the server",
CON_MENU,
{ 'q', -1 },
1
},
{
KEY_CMD_GO,
"go",
"Start playing at this file or go to this directory",
CON_MENU,
{ '\n', -1 },
1
},
{
KEY_CMD_MENU_DOWN,
"menu_down",
"Move down in the menu",
CON_MENU,
{ KEY_DOWN, -1 },
1
},
{
KEY_CMD_MENU_UP,
"menu_up",
"Move up in the menu",
CON_MENU,
{ KEY_UP, -1 },
1
},
{
KEY_CMD_MENU_NPAGE,
"menu_page_down",
"Move one page down",
CON_MENU,
{ KEY_NPAGE, -1},
1
},
{
KEY_CMD_MENU_PPAGE,
"menu_page_up",
"Move one page up",
CON_MENU,
{ KEY_PPAGE, -1},
1
},
{
KEY_CMD_MENU_FIRST,
"menu_first_item",
"Move to the first item in the menu",
CON_MENU,
{ KEY_HOME, -1 },
1
},
{
KEY_CMD_MENU_LAST,
"menu_last_item",
"Move to the last item in the menu",
CON_MENU,
{ KEY_END, -1 },
1
},
{
KEY_CMD_QUIT,
"quit",
"Quit",
CON_MENU,
{ 'Q', -1 },
1
},
{
KEY_CMD_STOP,
"stop",
"Stop",
CON_MENU,
{ 's', -1 },
1
},
{
KEY_CMD_NEXT,
"next",
"Play next file",
CON_MENU,
{ 'n', -1 },
1
},
{
KEY_CMD_PREVIOUS,
"previous",
"Play previous file",
CON_MENU,
{ 'b', -1 },
1
},
{
KEY_CMD_PAUSE,
"pause",
"Pause",
CON_MENU,
{ 'p', ' ', -1 },
2
},
{
KEY_CMD_TOGGLE_READ_TAGS,
"toggle_read_tags",
"Toggle ReadTags option",
CON_MENU,
{ 'f', -1 },
1
},
{
KEY_CMD_TOGGLE_SHUFFLE,
"toggle_shuffle",
"Toggle Shuffle",
CON_MENU,
{ 'S', -1 },
1
},
{
KEY_CMD_TOGGLE_REPEAT,
"toggle_repeat",
"Toggle Repeat",
CON_MENU,
{ 'R', -1 },
1
},
{
KEY_CMD_TOGGLE_AUTO_NEXT,
"toggle_auto_next",
"Toggle AutoNext",
CON_MENU,
{ 'X', -1 },
1
},
{
KEY_CMD_TOGGLE_MENU,
"toggle_menu",
"Switch between playlist and file list",
CON_MENU,
{ '\t', -1 },
1
},
{
KEY_CMD_TOGGLE_LAYOUT,
"toggle_layout",
"Switch between layouts",
CON_MENU,
{ 'l', -1 },
1
},
{
KEY_CMD_TOGGLE_PERCENT,
"toggle_percent",
"Switch on/off play time percentage",
CON_MENU,
{ -1 },
0
},
{
KEY_CMD_PLIST_ADD_FILE,
"add_file",
"Add a file/directory to the playlist",
CON_MENU,
{ 'a', -1 },
1
},
{
KEY_CMD_PLIST_CLEAR,
"clear_playlist",
"Clear the playlist",
CON_MENU,
{ 'C', -1 },
1
},
{
KEY_CMD_PLIST_ADD_DIR,
"add_directory",
"Add a directory recursively to the playlist",
CON_MENU,
{ 'A', -1 },
1
},
{
KEY_CMD_PLIST_REMOVE_DEAD_ENTRIES,
"remove_dead_entries",
"Remove playlist entries for non-existent files",
CON_MENU,
{ 'Y', -1 },
1
},
{
KEY_CMD_MIXER_DEC_1,
"volume_down_1",
"Decrease volume by 1%",
CON_MENU,
{ '<', -1 },
1
},
{
KEY_CMD_MIXER_INC_1,
"volume_up_1",
"Increase volume by 1%",
CON_MENU,
{ '>', -1 },
1
},
{
KEY_CMD_MIXER_DEC_5,
"volume_down_5",
"Decrease volume by 5%",
CON_MENU,
{ ',', -1 },
1
},
{
KEY_CMD_MIXER_INC_5,
"volume_up_5",
"Increase volume by 5%",
CON_MENU,
{ '.', -1 },
1
},
{
KEY_CMD_SEEK_FORWARD,
"seek_forward",
"Seek forward by n-s",
CON_MENU,
{ KEY_RIGHT, -1 },
1
},
{
KEY_CMD_SEEK_BACKWARD,
"seek_backward",
"Seek backward by n-s",
CON_MENU,
{ KEY_LEFT, -1},
1
},
{
KEY_CMD_HELP,
"help",
"Show the help screen",
CON_MENU,
{ 'h', '?', -1 },
2
},
{
KEY_CMD_HIDE_MESSAGE,
"hide_message",
"Hide error/informative message",
CON_MENU,
{ 'M', -1 },
1
},
{
KEY_CMD_REFRESH,
"refresh",
"Refresh the screen",
CON_MENU,
{ CTRL('r'), CTRL('l'), -1},
2
},
{
KEY_CMD_RELOAD,
"reload",
"Reread directory content",
CON_MENU,
{ 'r', -1 },
1
},
{
KEY_CMD_TOGGLE_SHOW_HIDDEN_FILES,
"toggle_hidden_files",
"Toggle ShowHiddenFiles option",
CON_MENU,
{ 'H', -1 },
1
},
{
KEY_CMD_GO_MUSIC_DIR,
"go_to_music_directory",
"Go to the music directory (requires config option)",
CON_MENU,
{ 'm', -1 },
1
},
{
KEY_CMD_PLIST_DEL,
"delete_from_playlist",
"Delete an item from the playlist",
CON_MENU,
{ 'd', -1 },
1
},
{
KEY_CMD_MENU_SEARCH,
"search_menu",
"Search the menu",
CON_MENU,
{ 'g', '/', -1 },
2
},
{
KEY_CMD_PLIST_SAVE,
"save_playlist",
"Save the playlist",
CON_MENU,
{ 'V', -1 },
1
},
{
KEY_CMD_TOGGLE_SHOW_TIME,
"toggle_show_time",
"Toggle ShowTime option",
CON_MENU,
{ CTRL('t'), -1},
1
},
{
KEY_CMD_TOGGLE_SHOW_FORMAT,
"toggle_show_format",
"Toggle ShowFormat option",
CON_MENU,
{ CTRL('f'), -1 },
1
},
{
KEY_CMD_GO_URL,
"go_url",
"Play from the URL",
CON_MENU,
{ 'o', -1 },
1
},
{
KEY_CMD_GO_TO_PLAYING_FILE,
"go_to_playing_file",
"Go to the currently playing file's directory",
CON_MENU,
{ 'G', -1 },
1
},
{
KEY_CMD_GO_DIR,
"go_to_a_directory",
"Go to a directory",
CON_MENU,
{ 'i', -1 },
1
},
{
KEY_CMD_GO_DIR_UP,
"go_up",
"Go to '..'",
CON_MENU,
{ 'U', -1 },
1
},
{
KEY_CMD_CANCEL,
"cancel",
"Exit from an entry",
CON_ENTRY,
{ CTRL('x'), KEY_ESCAPE, -1 },
2
},
{
KEY_CMD_SEEK_FORWARD_5,
"seek_forward_fast",
"Silent seek forward by 5s",
CON_MENU,
{ ']', -1 },
1
},
{
KEY_CMD_SEEK_BACKWARD_5,
"seek_backward_fast",
"Silent seek backward by 5s",
CON_MENU,
{ '[', -1 },
1
},
{
KEY_CMD_VOLUME_10,
"volume_10",
"Set volume to 10%",
CON_MENU,
{ '1' | META_KEY_FLAG, -1 },
1
},
{
KEY_CMD_VOLUME_20,
"volume_20",
"Set volume to 20%",
CON_MENU,
{ '2' | META_KEY_FLAG, -1 },
1
},
{
KEY_CMD_VOLUME_30,
"volume_30",
"Set volume to 30%",
CON_MENU,
{ '3' | META_KEY_FLAG, -1 },
1
},
{
KEY_CMD_VOLUME_40,
"volume_40",
"Set volume to 40%",
CON_MENU,
{ '4' | META_KEY_FLAG, -1 },
1
},
{
KEY_CMD_VOLUME_50,
"volume_50",
"Set volume to 50%",
CON_MENU,
{ '5' | META_KEY_FLAG, -1 },
1
},
{
KEY_CMD_VOLUME_60,
"volume_60",
"Set volume to 60%",
CON_MENU,
{ '6' | META_KEY_FLAG, -1 },
1
},
{
KEY_CMD_VOLUME_70,
"volume_70",
"Set volume to 70%",
CON_MENU,
{ '7' | META_KEY_FLAG, -1 },
1
},
{
KEY_CMD_VOLUME_80,
"volume_80",
"Set volume to 80%",
CON_MENU,
{ '8' | META_KEY_FLAG, -1 },
1
},
{
KEY_CMD_VOLUME_90,
"volume_90",
"Set volume to 90%",
CON_MENU,
{ '9' | META_KEY_FLAG, -1 },
1
},
{
KEY_CMD_MARK_START,
"mark_start",
"Mark the start of a block",
CON_MENU,
{ '\'', -1 },
1
},
{
KEY_CMD_MARK_END,
"mark_end",
"Mark the end of a block",
CON_MENU,
{ '\"', -1 },
1
},
{
KEY_CMD_FAST_DIR_1,
"go_to_fast_dir1",
"Go to a fast dir 1",
CON_MENU,
{ '!', -1 },
1
},
{
KEY_CMD_FAST_DIR_2,
"go_to_fast_dir2",
"Go to a fast dir 2",
CON_MENU,
{ '@', -1 },
1
},
{
KEY_CMD_FAST_DIR_3,
"go_to_fast_dir3",
"Go to a fast dir 3",
CON_MENU,
{ '#', -1 },
1
},
{
KEY_CMD_FAST_DIR_4,
"go_to_fast_dir4",
"Go to a fast dir 4",
CON_MENU,
{ '$', -1 },
1
},
{
KEY_CMD_FAST_DIR_5,
"go_to_fast_dir5",
"Go to a fast dir 5",
CON_MENU,
{ '%', -1 },
1
},
{
KEY_CMD_FAST_DIR_6,
"go_to_fast_dir6",
"Go to a fast dir 6",
CON_MENU,
{ '^', -1 },
1
},
{
KEY_CMD_FAST_DIR_7,
"go_to_fast_dir7",
"Go to a fast dir 7",
CON_MENU,
{ '&', -1 },
1
},
{
KEY_CMD_FAST_DIR_8,
"go_to_fast_dir8",
"Go to a fast dir 8",
CON_MENU,
{ '*', -1 },
1
},
{
KEY_CMD_FAST_DIR_9,
"go_to_fast_dir9",
"Go to a fast dir 9",
CON_MENU,
{ '(', -1 },
1
},
{
KEY_CMD_FAST_DIR_10,
"go_to_fast_dir10",
"Go to a fast dir 10",
CON_MENU,
{ ')', -1 },
1
},
{
KEY_CMD_HISTORY_UP,
"history_up",
"Go to the previous entry in the history (entry)",
CON_ENTRY,
{ KEY_UP, -1 },
1
},
{
KEY_CMD_HISTORY_DOWN,
"history_down",
"Go to the next entry in the history (entry)",
CON_ENTRY,
{ KEY_DOWN, -1 },
1
},
{
KEY_CMD_DELETE_START,
"delete_to_start",
"Delete to start of line (entry)",
CON_ENTRY,
{ CTRL('u'), -1 },
1
},
{
KEY_CMD_DELETE_END,
"delete_to_end",
"Delete to end of line (entry)",
CON_ENTRY,
{ CTRL('k'), -1 },
1
},
{
KEY_CMD_TOGGLE_MIXER,
"toggle_mixer",
"Toggles the mixer channel",
CON_MENU,
{ 'x', -1 },
1
},
{
KEY_CMD_TOGGLE_SOFTMIXER,
"toggle_softmixer",
"Toggles the software-mixer",
CON_MENU,
{ 'w', -1 },
1
},
{
KEY_CMD_TOGGLE_EQUALIZER,
"toggle_equalizer",
"Toggles the equalizer",
CON_MENU,
{ 'E', -1 },
1
},
{
KEY_CMD_EQUALIZER_REFRESH,
"equalizer_refresh",
"Reload EQ-presets",
CON_MENU,
{ 'e', -1 },
1
},
{
KEY_CMD_EQUALIZER_PREV,
"equalizer_prev",
"Select previous equalizer-preset",
CON_MENU,
{ 'K', -1 },
1
},
{
KEY_CMD_EQUALIZER_NEXT,
"equalizer_next",
"Select next equalizer-preset",
CON_MENU,
{ 'k', -1 },
1
},
{
KEY_CMD_TOGGLE_MAKE_MONO,
"toggle_make_mono",
"Toggle mono-mixing",
CON_MENU,
{ 'J', -1 },
1
},
{
KEY_CMD_PLIST_MOVE_UP,
"plist_move_up",
"Move playlist item up",
CON_MENU,
{ 'u', -1 },
1
},
{
KEY_CMD_PLIST_MOVE_DOWN,
"plist_move_down",
"Move playlist item down",
CON_MENU,
{ 'j', -1 },
1
},
{
KEY_CMD_ADD_STREAM,
"plist_add_stream",
"Add a URL to the playlist using entry",
CON_MENU,
{ CTRL('U'), -1 },
1
},
{
KEY_CMD_THEME_MENU,
"theme_menu",
"Switch to the theme selection menu",
CON_MENU,
{ 'T', -1 },
1
},
{
KEY_CMD_EXEC1,
"exec_command1",
"Execute ExecCommand1",
CON_MENU,
{ KEY_F(1), -1 },
1
},
{
KEY_CMD_EXEC2,
"exec_command2",
"Execute ExecCommand2",
CON_MENU,
{ KEY_F(2), -1 },
1
},
{
KEY_CMD_EXEC3,
"exec_command3",
"Execute ExecCommand3",
CON_MENU,
{ KEY_F(3), -1 },
1
},
{
KEY_CMD_EXEC4,
"exec_command4",
"Execute ExecCommand4",
CON_MENU,
{ KEY_F(4), -1 },
1
},
{
KEY_CMD_EXEC5,
"exec_command5",
"Execute ExecCommand5",
CON_MENU,
{ KEY_F(5), -1 },
1
},
{
KEY_CMD_EXEC6,
"exec_command6",
"Execute ExecCommand6",
CON_MENU,
{ KEY_F(6), -1 },
1
},
{
KEY_CMD_EXEC7,
"exec_command7",
"Execute ExecCommand7",
CON_MENU,
{ KEY_F(7), -1 },
1
},
{
KEY_CMD_EXEC8,
"exec_command8",
"Execute ExecCommand8",
CON_MENU,
{ KEY_F(8), -1 },
1
},
{
KEY_CMD_EXEC9,
"exec_command9",
"Execute ExecCommand9",
CON_MENU,
{ KEY_F(9), -1 },
1
},
{
KEY_CMD_EXEC10,
"exec_command10",
"Execute ExecCommand10",
CON_MENU,
{ KEY_F(10), -1 },
1
},
{
KEY_CMD_LYRICS,
"show_lyrics",
"Display lyrics of the current song (if available)",
CON_MENU,
{ 'L', -1 },
1
},
{
KEY_CMD_TOGGLE_PLAYLIST_FULL_PATHS,
"playlist_full_paths",
"Toggle displaying full paths in the playlist",
CON_MENU,
{ 'P', -1 },
1
},
{
KEY_CMD_QUEUE_TOGGLE_FILE,
"enqueue_file",
"Add (or remove) a file to (from) queue",
CON_MENU,
{ 'z', -1 },
1
},
{
KEY_CMD_QUEUE_CLEAR,
"clear_queue",
"Clear the queue",
CON_MENU,
{ 'Z', -1 },
1
}
};
static struct special_keys
{
char *name;
int key;
} special_keys[] = {
{ "DOWN", KEY_DOWN },
{ "UP", KEY_UP },
{ "LEFT", KEY_LEFT },
{ "RIGHT", KEY_RIGHT },
{ "HOME", KEY_HOME },
{ "BACKSPACE", KEY_BACKSPACE },
{ "DEL", KEY_DC },
{ "INS", KEY_IC },
{ "ENTER", '\n' },
{ "PAGE_UP", KEY_PPAGE },
{ "PAGE_DOWN", KEY_NPAGE },
{ "TAB", '\t' },
{ "END", KEY_END },
{ "KEYPAD_CENTER", KEY_B2 },
{ "SPACE", ' ' },
{ "ESCAPE", KEY_ESCAPE },
{ "F1", KEY_F(1) },
{ "F2", KEY_F(2) },
{ "F3", KEY_F(3) },
{ "F4", KEY_F(4) },
{ "F5", KEY_F(5) },
{ "F6", KEY_F(6) },
{ "F7", KEY_F(7) },
{ "F8", KEY_F(8) },
{ "F9", KEY_F(9) },
{ "F10", KEY_F(10) },
{ "F11", KEY_F(11) },
{ "F12", KEY_F(12) }
};
#define COMMANDS_NUM (ARRAY_SIZE(commands))
#define SPECIAL_KEYS_NUM (ARRAY_SIZE(special_keys))
/* Number of chars from the left where the help message starts
* (skipping the key list). */
#define HELP_INDENT 15
static char *help[COMMANDS_NUM];
enum key_cmd get_key_cmd (const enum key_context context,
const struct iface_key *key)
{
int k;
size_t i;
k = (key->type == IFACE_KEY_CHAR) ? key->key.ucs : key->key.func;
for (i = 0; i < COMMANDS_NUM; i += 1) {
if (commands[i].context == context) {
int j = 0;
while (commands[i].keys[j] != -1) {
if (commands[i].keys[j++] == k)
return commands[i].cmd;
}
}
}
return KEY_CMD_WRONG;
}
/* Return the path to the keymap file or NULL if none was specified. */
static char *find_keymap_file ()
{
char *file;
static char path[PATH_MAX];
if ((file = options_get_str("Keymap"))) {
if (file[0] == '/') {
/* Absolute path */
strncpy (path, file, sizeof(path));
if (path[sizeof(path)-1])
fatal ("Keymap path too long!");
return path;
}
strncpy (path, create_file_name(file), sizeof(path));
if (path[sizeof(path)-1])
fatal ("Keymap path too long!");
return path;
}
return NULL;
}
static void keymap_parse_error (const int line, const char *msg)
{
fatal ("Parse error in the keymap file line %d: %s", line, msg);
}
/* Return a key for the symbolic key name (^c, M-F, etc.).
* Return -1 on error. */
static int parse_key (const char *symbol)
{
size_t i;
if (strlen(symbol) == 1) {
/* Just a regular char */
static bool digit_key_warned = false;
if (!digit_key_warned && isdigit (symbol[0])) {
fprintf (stderr,
"\n\tUsing digits as keys is deprecated as they may"
"\n\tbe used for specific purposes in release 2.6.\n");
xsleep (5, 1);
digit_key_warned = true;
}
return symbol[0];
}
if (symbol[0] == '^') {
/* CTRL sequence */
if (strlen(symbol) != 2)
return -1;
return CTRL(symbol[1]);
}
if (!strncasecmp(symbol, "M-", 2)) {
/* Meta char */
if (strlen(symbol) != 3)
return -1;
return symbol[2] | META_KEY_FLAG;
}
/* Special keys. */
for (i = 0; i < SPECIAL_KEYS_NUM; i += 1) {
if (!strcasecmp(special_keys[i].name, symbol))
return special_keys[i].key;
}
return -1;
}
/* Remove a single key from the default key definition for a command. */
static void clear_default_key (int key)
{
size_t cmd_ix;
for (cmd_ix = 0; cmd_ix < COMMANDS_NUM; cmd_ix += 1) {
int key_ix;
for (key_ix = 0; key_ix < commands[cmd_ix].default_keys; key_ix++) {
if (commands[cmd_ix].keys[key_ix] == key)
break;
}
if (key_ix == commands[cmd_ix].default_keys)
continue;
while (commands[cmd_ix].keys[key_ix] != -1) {
commands[cmd_ix].keys[key_ix] = commands[cmd_ix].keys[key_ix + 1];
key_ix += 1;
}
commands[cmd_ix].default_keys -= 1;