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mc/lib/tty/key.c

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/* Keyboard support routines.
Copyright (C) 1994, 1995, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
2005, 2006, 2007, 2009 Free Software Foundation, Inc.
Written by: 1994, 1995 Miguel de Icaza.
1994, 1995 Janne Kukonlehto.
1995 Jakub Jelinek.
1997 Norbert Warmuth
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.
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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
/** \file key.c
* \brief Source: keyboard support routines
*/
#include <config.h>
#include <ctype.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
#include <sys/types.h>
#include <unistd.h>
#include "lib/global.h"
#include "lib/strutil.h" /* str_casecmp */
#include "lib/vfs/mc-vfs/vfs.h"
#ifdef ENABLE_VFS
#include "lib/vfs/mc-vfs/gc.h"
#endif /* ENABLE_VFS */
#include "tty.h"
#include "tty-internal.h" /* mouse_enabled */
#include "mouse.h"
#include "key.h"
#include "win.h" /* xterm_flag */
#include "src/main.h"
#include "src/layout.h" /* winch_flag, mc_refresh() */
#include "src/consaver/cons.saver.h"
#ifdef HAVE_TEXTMODE_X11_SUPPORT
#include "x11conn.h"
#endif
#ifdef __linux__
#if defined(__GLIBC__) && (__GLIBC__ < 2)
# include <linux/termios.h> /* TIOCLINUX */
#else
# include <termios.h>
#endif
#include <sys/ioctl.h>
#endif /* __linux__ */
#ifdef __CYGWIN__
#include <termios.h>
#include <sys/ioctl.h>
#endif /* __CYGWIN__ */
#ifdef __QNXNTO__
#include <dlfcn.h>
#include <Ph.h>
#include <sys/dcmd_chr.h>
#endif /* __QNXNTO__ */
/*** global variables **************************************************/
/* If true, use + and \ keys normally and select/unselect do if M-+ / M-\.
and M-- and keypad + / - */
int alternate_plus_minus = 0;
int mou_auto_repeat = 100;
int double_click_speed = 250;
int old_esc_mode = 0;
int use_8th_bit_as_meta = 0;
/* This table is a mapping between names and the constants we use
* We use this to allow users to define alternate definitions for
* certain keys that may be missing from the terminal database
*/
const key_code_name_t key_name_conv_tab[] = {
/* KEY_F(0) is not here, since we are mapping it to f10, so there is no reason
to define f0 as well. Also, it makes Learn keys a bunch of problems :( */
{ KEY_F (1), "f1", N_("Function key 1"), "F1" },
{ KEY_F (2), "f2", N_("Function key 2"), "F2" },
{ KEY_F (3), "f3", N_("Function key 3"), "F3" },
{ KEY_F (4), "f4", N_("Function key 4"), "F4" },
{ KEY_F (5), "f5", N_("Function key 5"), "F5" },
{ KEY_F (6), "f6", N_("Function key 6"), "F6" },
{ KEY_F (7), "f7", N_("Function key 7"), "F7" },
{ KEY_F (8), "f8", N_("Function key 8"), "F8" },
{ KEY_F (9), "f9", N_("Function key 9"), "F9" },
{ KEY_F (10), "f10", N_("Function key 10"), "F10" },
{ KEY_F (11), "f11", N_("Function key 11"), "F11" },
{ KEY_F (12), "f12", N_("Function key 12"), "F12" },
{ KEY_F (13), "f13", N_("Function key 13"), "F13" },
{ KEY_F (14), "f14", N_("Function key 14"), "F14" },
{ KEY_F (15), "f15", N_("Function key 15"), "F15" },
{ KEY_F (16), "f16", N_("Function key 16"), "F16" },
{ KEY_F (17), "f17", N_("Function key 17"), "F17" },
{ KEY_F (18), "f18", N_("Function key 18"), "F18" },
{ KEY_F (19), "f19", N_("Function key 19"), "F19" },
{ KEY_F (20), "f20", N_("Function key 20"), "F20" },
{ KEY_BACKSPACE, "backspace", N_("Backspace key"), "Backspace" },
{ KEY_END, "end", N_("End key"), "End" },
{ KEY_UP, "up", N_("Up arrow key"), "Up" },
{ KEY_DOWN, "down", N_("Down arrow key"), "Down" },
{ KEY_LEFT, "left", N_("Left arrow key"), "Left" },
{ KEY_RIGHT, "right", N_("Right arrow key"), "Right" },
{ KEY_HOME, "home", N_("Home key"), "Home" },
{ KEY_NPAGE, "pgdn", N_("Page Down key"), "PgDn" },
{ KEY_PPAGE, "pgup", N_("Page Up key"), "PgUp" },
{ KEY_IC, "insert", N_("Insert key"), "Ins" },
{ KEY_DC, "delete", N_("Delete key"), "Del" },
{ ALT ('\t'), "complete", N_("Completion/M-tab"), "Meta-Tab" },
{ KEY_KP_ADD, "kpplus", N_("+ on keypad"), "+" },
{ KEY_KP_SUBTRACT, "kpminus", N_("- on keypad"), "-" },
{ (int) '/', "kpslash", N_("Slash on keypad"), "/" },
{ KEY_KP_MULTIPLY, "kpasterisk", N_("* on keypad"), "*" },
/* From here on, these won't be shown in Learn keys (no space) */
{ ESC_CHAR, "escape", N_("Escape key"), "Esc" },
{ KEY_LEFT, "kpleft", N_("Left arrow keypad"), "Left" },
{ KEY_RIGHT, "kpright", N_("Right arrow keypad"), "Right" },
{ KEY_UP, "kpup", N_("Up arrow keypad"), "Up" },
{ KEY_DOWN, "kpdown", N_("Down arrow keypad"), "Down" },
{ KEY_HOME, "kphome", N_("Home on keypad"), "Home" },
{ KEY_END, "kpend", N_("End on keypad"), "End" },
{ KEY_NPAGE, "kpnpage", N_("Page Down keypad"), "PgDn" },
{ KEY_PPAGE, "kpppage", N_("Page Up keypad"), "PgUp" },
{ KEY_IC, "kpinsert", N_("Insert on keypad"), "Ins" },
{ KEY_DC, "kpdelete", N_("Delete on keypad"), "Del" },
{ (int) '\n', "kpenter", N_("Enter on keypad"), "Enter" },
{ KEY_F (21), "f21", N_("Function key 21"), "F21" },
{ KEY_F (22), "f22", N_("Function key 22"), "F22" },
{ KEY_F (23), "f23", N_("Function key 23"), "F23" },
{ KEY_F (24), "f24", N_("Function key 24"), "F24" },
/* Alternative label */
{ ESC_CHAR, "esc", N_("Escape key"), "Esc" },
{ KEY_BACKSPACE, "bs", N_("Backspace key"), "Bakspace" },
{ KEY_IC, "ins", N_("Insert key"), "Ins" },
{ KEY_DC, "del", N_("Delete key"), "Del" },
{ (int) '+', "plus", N_("Plus"), "+" },
{ (int) '-', "minus", N_("Minus"), "-" },
{ (int) '*', "asterisk", N_("Asterisk"), "*" },
{ (int) '.', "dot", N_("Dot"), "." },
{ (int) '<', "lt", N_("Less than"), "<" },
{ (int) '>', "gt", N_("Great than"), ">" },
{ (int) '=', "equal", N_("Equal"), "=" },
{ (int) ',', "comma", N_("Comma"), "," },
{ (int) '\'', "apostrophe", N_("Apostrophe"), "\'" },
{ (int) ':', "colon", N_("Colon"), ":" },
{ (int) '!', "exclamation", N_("Exclamation mark"), "!" },
{ (int) '?', "question", N_("Question mark"), "?" },
{ (int) '&', "ampersand", N_("Ampersand"), "&" },
{ (int) '$', "dollar", N_("Dollar sign"), "$" },
{ (int) '"', "quota", N_("Quotation mark"), "\"" },
{ (int) '^', "caret", N_("Caret"), "^" },
{ (int) '~', "tilda", N_("Tilda"), "~" },
{ (int) '`', "prime", N_("Prime"), "`" },
{ (int) '_', "underline", N_("Underline"), "_" },
{ (int) '_', "understrike", N_("Understrike"), "_" },
{ (int) '|', "pipe", N_("Pipe"), "|" },
{ (int) '\n', "enter", N_("Enter"), "Enter" },
{ (int) '\t', "tab", N_("Tab key"), "Tab" },
{ (int) ' ', "space", N_("Space key"), "Space" },
{ (int) '/', "slash", N_("Slash key"), "/" },
{ (int) '\\', "backslash", N_("Backslash key"), "\\" },
{ (int) '#', "number", N_("Number sign #"), "#" },
{ (int) '#', "hash", N_("Number sign #"), "#" },
/* meta keys */
{ KEY_M_CTRL, "control", N_("Ctrl"), "C" },
{ KEY_M_CTRL, "ctrl", N_("Ctrl"), "C" },
{ KEY_M_ALT, "meta", N_("Alt"), "M" },
{ KEY_M_ALT, "alt", N_("Alt"), "M" },
{ KEY_M_ALT, "ralt", N_("Alt"), "M" },
{ KEY_M_SHIFT, "shift", N_("Shift"), "S" },
{ 0, NULL, NULL, NULL }
};
/*** file scope macro definitions **************************************/
#define GET_TIME(tv) (gettimeofday(&tv, (struct timezone *) NULL))
#define DIF_TIME(t1, t2) ((t2.tv_sec - t1.tv_sec) * 1000 + (t2.tv_usec - t1.tv_usec)/1000)
/* The maximum sequence length (32 + null terminator) */
#define SEQ_BUFFER_LEN 33
/*** file scope type declarations **************************************/
/* Linux console keyboard modifiers */
typedef enum {
SHIFT_PRESSED = (1 << 0),
ALTR_PRESSED = (1 << 1),
CONTROL_PRESSED = (1 << 2),
ALTL_PRESSED = (1 << 3)
} mod_pressed_t;
typedef struct key_def {
char ch; /* Holds the matching char code */
int code; /* The code returned, valid if child == NULL */
struct key_def *next;
struct key_def *child; /* sequence continuation */
int action; /* optional action to be done. Now used only
to mark that we are just after the first
Escape */
} key_def;
typedef struct {
int code;
const char *seq;
int action;
} key_define_t;
/* File descriptor monitoring add/remove routines */
typedef struct SelectList {
int fd;
select_fn callback;
void *info;
struct SelectList *next;
} SelectList;
#ifdef __QNXNTO__
typedef int (*ph_dv_f) (void *, void *);
typedef int (*ph_ov_f) (void *);
typedef int (*ph_pqc_f) (unsigned short, PhCursorInfo_t *);
#endif
/*** file scope variables **********************************************/
static key_define_t mc_default_keys[] = {
{ESC_CHAR, ESC_STR, MCKEY_ESCAPE},
{ESC_CHAR, ESC_STR ESC_STR, MCKEY_NOACTION},
{0, NULL, MCKEY_NOACTION},
};
/* Broken terminfo and termcap databases on xterminals */
static key_define_t xterm_key_defines[] = {
{KEY_F (1), ESC_STR "OP", MCKEY_NOACTION},
{KEY_F (2), ESC_STR "OQ", MCKEY_NOACTION},
{KEY_F (3), ESC_STR "OR", MCKEY_NOACTION},
{KEY_F (4), ESC_STR "OS", MCKEY_NOACTION},
{KEY_F (1), ESC_STR "[11~", MCKEY_NOACTION},
{KEY_F (2), ESC_STR "[12~", MCKEY_NOACTION},
{KEY_F (3), ESC_STR "[13~", MCKEY_NOACTION},
{KEY_F (4), ESC_STR "[14~", MCKEY_NOACTION},
{KEY_F (5), ESC_STR "[15~", MCKEY_NOACTION},
{KEY_F (6), ESC_STR "[17~", MCKEY_NOACTION},
{KEY_F (7), ESC_STR "[18~", MCKEY_NOACTION},
{KEY_F (8), ESC_STR "[19~", MCKEY_NOACTION},
{KEY_F (9), ESC_STR "[20~", MCKEY_NOACTION},
{KEY_F (10), ESC_STR "[21~", MCKEY_NOACTION},
/* old xterm Shift-arrows */
{KEY_M_SHIFT | KEY_UP, ESC_STR "O2A", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_DOWN, ESC_STR "O2B", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_RIGHT, ESC_STR "O2C", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_LEFT, ESC_STR "O2D", MCKEY_NOACTION},
/* new xterm Shift-arrows */
{KEY_M_SHIFT | KEY_UP, ESC_STR "[1;2A", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_DOWN, ESC_STR "[1;2B", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_RIGHT, ESC_STR "[1;2C", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_LEFT, ESC_STR "[1;2D", MCKEY_NOACTION},
/* more xterm keys with modifiers */
{KEY_M_CTRL | KEY_PPAGE, ESC_STR "[5;5~", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_NPAGE, ESC_STR "[6;5~", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_IC, ESC_STR "[2;5~", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_DC, ESC_STR "[3;5~", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_HOME, ESC_STR "[1;5H", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_END, ESC_STR "[1;5F", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_HOME, ESC_STR "[1;2H", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_END, ESC_STR "[1;2F", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_UP, ESC_STR "[1;5A", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_DOWN, ESC_STR "[1;5B", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_RIGHT, ESC_STR "[1;5C", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_LEFT, ESC_STR "[1;5D", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_IC, ESC_STR "[2;2~", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_DC, ESC_STR "[3;2~", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_M_CTRL | KEY_UP, ESC_STR "[1;6A", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_M_CTRL | KEY_DOWN, ESC_STR "[1;6B", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_M_CTRL | KEY_RIGHT, ESC_STR "[1;6C", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_M_CTRL | KEY_LEFT, ESC_STR "[1;6D", MCKEY_NOACTION},
/* putty */
{KEY_M_SHIFT | KEY_M_CTRL | KEY_UP, ESC_STR "[[1;6A", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_M_CTRL | KEY_DOWN, ESC_STR "[[1;6B", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_M_CTRL | KEY_RIGHT, ESC_STR "[[1;6C", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_M_CTRL | KEY_LEFT, ESC_STR "[[1;6D", MCKEY_NOACTION},
/* putty alt-arrow keys */
/* removed as source esc esc esc trouble */
/*
{ KEY_M_ALT | KEY_UP, ESC_STR ESC_STR "OA", MCKEY_NOACTION },
{ KEY_M_ALT | KEY_DOWN, ESC_STR ESC_STR "OB", MCKEY_NOACTION },
{ KEY_M_ALT | KEY_RIGHT, ESC_STR ESC_STR "OC", MCKEY_NOACTION },
{ KEY_M_ALT | KEY_LEFT, ESC_STR ESC_STR "OD", MCKEY_NOACTION },
{ KEY_M_ALT | KEY_PPAGE, ESC_STR ESC_STR "[5~", MCKEY_NOACTION },
{ KEY_M_ALT | KEY_NPAGE, ESC_STR ESC_STR "[6~", MCKEY_NOACTION },
{ KEY_M_ALT | KEY_HOME, ESC_STR ESC_STR "[1~", MCKEY_NOACTION },
{ KEY_M_ALT | KEY_END, ESC_STR ESC_STR "[4~", MCKEY_NOACTION },
{ KEY_M_CTRL | KEY_M_ALT | KEY_UP, ESC_STR ESC_STR "[1;2A", MCKEY_NOACTION },
{ KEY_M_CTRL | KEY_M_ALT | KEY_DOWN, ESC_STR ESC_STR "[1;2B", MCKEY_NOACTION },
{ KEY_M_CTRL | KEY_M_ALT | KEY_RIGHT, ESC_STR ESC_STR "[1;2C", MCKEY_NOACTION },
{ KEY_M_CTRL | KEY_M_ALT | KEY_LEFT, ESC_STR ESC_STR "[1;2D", MCKEY_NOACTION },
{ KEY_M_CTRL | KEY_M_ALT | KEY_PPAGE, ESC_STR ESC_STR "[[5;5~", MCKEY_NOACTION },
{ KEY_M_CTRL | KEY_M_ALT | KEY_NPAGE, ESC_STR ESC_STR "[[6;5~", MCKEY_NOACTION },
{ KEY_M_CTRL | KEY_M_ALT | KEY_HOME, ESC_STR ESC_STR "[1;5H", MCKEY_NOACTION },
{ KEY_M_CTRL | KEY_M_ALT | KEY_END, ESC_STR ESC_STR "[1;5F", MCKEY_NOACTION },
*/
/* xterm alt-arrow keys */
{KEY_M_ALT | KEY_UP, ESC_STR "[1;3A", MCKEY_NOACTION},
{KEY_M_ALT | KEY_DOWN, ESC_STR "[1;3B", MCKEY_NOACTION},
{KEY_M_ALT | KEY_RIGHT, ESC_STR "[1;3C", MCKEY_NOACTION},
{KEY_M_ALT | KEY_LEFT, ESC_STR "[1;3D", MCKEY_NOACTION},
{KEY_M_ALT | KEY_PPAGE, ESC_STR "[5;3~", MCKEY_NOACTION},
{KEY_M_ALT | KEY_NPAGE, ESC_STR "[6;3~", MCKEY_NOACTION},
{KEY_M_ALT | KEY_HOME, ESC_STR "[1~", MCKEY_NOACTION},
{KEY_M_ALT | KEY_END, ESC_STR "[4~", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_M_ALT | KEY_UP, ESC_STR "[1;7A", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_M_ALT | KEY_DOWN, ESC_STR "[1;7B", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_M_ALT | KEY_RIGHT, ESC_STR "[1;7C", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_M_ALT | KEY_LEFT, ESC_STR "[1;7D", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_M_ALT | KEY_PPAGE, ESC_STR "[5;7~", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_M_ALT | KEY_NPAGE, ESC_STR "[6;7~", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_M_ALT | KEY_HOME, ESC_STR "OH", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_M_ALT | KEY_END, ESC_STR "OF", MCKEY_NOACTION},
/* rxvt keys with modifiers */
{KEY_M_SHIFT | KEY_UP, ESC_STR "[a", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_DOWN, ESC_STR "[b", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_RIGHT, ESC_STR "[c", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_LEFT, ESC_STR "[d", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_UP, ESC_STR "Oa", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_DOWN, ESC_STR "Ob", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_RIGHT, ESC_STR "Oc", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_LEFT, ESC_STR "Od", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_PPAGE, ESC_STR "[5^", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_NPAGE, ESC_STR "[6^", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_HOME, ESC_STR "[7^", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_END, ESC_STR "[8^", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_HOME, ESC_STR "[7$", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_END, ESC_STR "[8$", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_IC, ESC_STR "[2^", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_DC, ESC_STR "[3^", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_DC, ESC_STR "[3$", MCKEY_NOACTION},
/* konsole keys with modifiers */
{KEY_M_SHIFT | KEY_HOME, ESC_STR "O2H", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_END, ESC_STR "O2F", MCKEY_NOACTION},
/* gnome-terminal */
{KEY_M_SHIFT | KEY_UP, ESC_STR "[2A", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_DOWN, ESC_STR "[2B", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_RIGHT, ESC_STR "[2C", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_LEFT, ESC_STR "[2D", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_UP, ESC_STR "[5A", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_DOWN, ESC_STR "[5B", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_RIGHT, ESC_STR "[5C", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_LEFT, ESC_STR "[5D", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_M_CTRL | KEY_UP, ESC_STR "[6A", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_M_CTRL | KEY_DOWN, ESC_STR "[6B", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_M_CTRL | KEY_RIGHT, ESC_STR "[6C", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_M_CTRL | KEY_LEFT, ESC_STR "[6D", MCKEY_NOACTION},
/* gnome-terminal - application mode */
{KEY_M_CTRL | KEY_UP, ESC_STR "O5A", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_DOWN, ESC_STR "O5B", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_RIGHT, ESC_STR "O5C", MCKEY_NOACTION},
{KEY_M_CTRL | KEY_LEFT, ESC_STR "O5D", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_M_CTRL | KEY_UP, ESC_STR "O6A", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_M_CTRL | KEY_DOWN, ESC_STR "O6B", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_M_CTRL | KEY_RIGHT, ESC_STR "O6C", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_M_CTRL | KEY_LEFT, ESC_STR "O6D", MCKEY_NOACTION},
/* iTerm */
{KEY_M_SHIFT | KEY_PPAGE, ESC_STR "[5;2~", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_NPAGE, ESC_STR "[6;2~", MCKEY_NOACTION},
/* putty */
{KEY_M_SHIFT | KEY_PPAGE, ESC_STR "[[5;53~", MCKEY_NOACTION},
{KEY_M_SHIFT | KEY_NPAGE, ESC_STR "[[6;53~", MCKEY_NOACTION},
/* keypad keys */
{KEY_IC, ESC_STR "Op", MCKEY_NOACTION},
{KEY_DC, ESC_STR "On", MCKEY_NOACTION},
{'/', ESC_STR "Oo", MCKEY_NOACTION},
{'\n', ESC_STR "OM", MCKEY_NOACTION},
{0, NULL, MCKEY_NOACTION},
};
/* qansi-m terminals have a much more key combinatios,
which are undefined in termcap/terminfo */
static key_define_t qansi_key_defines[] = {
/* qansi-m terminal */
{KEY_M_CTRL | KEY_NPAGE, ESC_STR "[u", MCKEY_NOACTION}, /* Ctrl-PgDown */
{KEY_M_CTRL | KEY_PPAGE, ESC_STR "[v", MCKEY_NOACTION}, /* Ctrl-PgUp */
{KEY_M_CTRL | KEY_HOME, ESC_STR "[h", MCKEY_NOACTION}, /* Ctrl-Home */
{KEY_M_CTRL | KEY_END, ESC_STR "[y", MCKEY_NOACTION}, /* Ctrl-End */
{KEY_M_CTRL | KEY_IC, ESC_STR "[`", MCKEY_NOACTION}, /* Ctrl-Insert */
{KEY_M_CTRL | KEY_DC, ESC_STR "[p", MCKEY_NOACTION}, /* Ctrl-Delete */
{KEY_M_CTRL | KEY_LEFT, ESC_STR "[d", MCKEY_NOACTION}, /* Ctrl-Left */
{KEY_M_CTRL | KEY_RIGHT, ESC_STR "[c", MCKEY_NOACTION}, /* Ctrl-Right */
{KEY_M_CTRL | KEY_DOWN, ESC_STR "[b", MCKEY_NOACTION}, /* Ctrl-Down */
{KEY_M_CTRL | KEY_UP, ESC_STR "[a", MCKEY_NOACTION}, /* Ctrl-Up */
{KEY_M_CTRL | KEY_KP_ADD, ESC_STR "[s", MCKEY_NOACTION}, /* Ctrl-Gr-Plus */
{KEY_M_CTRL | KEY_KP_SUBTRACT, ESC_STR "[t", MCKEY_NOACTION}, /* Ctrl-Gr-Minus */
{KEY_M_CTRL | '\t', ESC_STR "[z", MCKEY_NOACTION}, /* Ctrl-Tab */
{KEY_M_SHIFT | '\t', ESC_STR "[Z", MCKEY_NOACTION}, /* Shift-Tab */
{KEY_M_CTRL | KEY_F (1), ESC_STR "[1~", MCKEY_NOACTION}, /* Ctrl-F1 */
{KEY_M_CTRL | KEY_F (2), ESC_STR "[2~", MCKEY_NOACTION}, /* Ctrl-F2 */
{KEY_M_CTRL | KEY_F (3), ESC_STR "[3~", MCKEY_NOACTION}, /* Ctrl-F3 */
{KEY_M_CTRL | KEY_F (4), ESC_STR "[4~", MCKEY_NOACTION}, /* Ctrl-F4 */
{KEY_M_CTRL | KEY_F (5), ESC_STR "[5~", MCKEY_NOACTION}, /* Ctrl-F5 */
{KEY_M_CTRL | KEY_F (6), ESC_STR "[6~", MCKEY_NOACTION}, /* Ctrl-F6 */
{KEY_M_CTRL | KEY_F (7), ESC_STR "[7~", MCKEY_NOACTION}, /* Ctrl-F7 */
{KEY_M_CTRL | KEY_F (8), ESC_STR "[8~", MCKEY_NOACTION}, /* Ctrl-F8 */
{KEY_M_CTRL | KEY_F (9), ESC_STR "[9~", MCKEY_NOACTION}, /* Ctrl-F9 */
{KEY_M_CTRL | KEY_F (10), ESC_STR "[10~", MCKEY_NOACTION}, /* Ctrl-F10 */
{KEY_M_CTRL | KEY_F (11), ESC_STR "[11~", MCKEY_NOACTION}, /* Ctrl-F11 */
{KEY_M_CTRL | KEY_F (12), ESC_STR "[12~", MCKEY_NOACTION}, /* Ctrl-F12 */
{KEY_M_ALT | KEY_F (1), ESC_STR "[17~", MCKEY_NOACTION}, /* Alt-F1 */
{KEY_M_ALT | KEY_F (2), ESC_STR "[18~", MCKEY_NOACTION}, /* Alt-F2 */
{KEY_M_ALT | KEY_F (3), ESC_STR "[19~", MCKEY_NOACTION}, /* Alt-F3 */
{KEY_M_ALT | KEY_F (4), ESC_STR "[20~", MCKEY_NOACTION}, /* Alt-F4 */
{KEY_M_ALT | KEY_F (5), ESC_STR "[21~", MCKEY_NOACTION}, /* Alt-F5 */
{KEY_M_ALT | KEY_F (6), ESC_STR "[22~", MCKEY_NOACTION}, /* Alt-F6 */
{KEY_M_ALT | KEY_F (7), ESC_STR "[23~", MCKEY_NOACTION}, /* Alt-F7 */
{KEY_M_ALT | KEY_F (8), ESC_STR "[24~", MCKEY_NOACTION}, /* Alt-F8 */
{KEY_M_ALT | KEY_F (9), ESC_STR "[25~", MCKEY_NOACTION}, /* Alt-F9 */
{KEY_M_ALT | KEY_F (10), ESC_STR "[26~", MCKEY_NOACTION}, /* Alt-F10 */
{KEY_M_ALT | KEY_F (11), ESC_STR "[27~", MCKEY_NOACTION}, /* Alt-F11 */
{KEY_M_ALT | KEY_F (12), ESC_STR "[28~", MCKEY_NOACTION}, /* Alt-F12 */
{KEY_M_ALT | 'a', ESC_STR "Na", MCKEY_NOACTION}, /* Alt-a */
{KEY_M_ALT | 'b', ESC_STR "Nb", MCKEY_NOACTION}, /* Alt-b */
{KEY_M_ALT | 'c', ESC_STR "Nc", MCKEY_NOACTION}, /* Alt-c */
{KEY_M_ALT | 'd', ESC_STR "Nd", MCKEY_NOACTION}, /* Alt-d */
{KEY_M_ALT | 'e', ESC_STR "Ne", MCKEY_NOACTION}, /* Alt-e */
{KEY_M_ALT | 'f', ESC_STR "Nf", MCKEY_NOACTION}, /* Alt-f */
{KEY_M_ALT | 'g', ESC_STR "Ng", MCKEY_NOACTION}, /* Alt-g */
{KEY_M_ALT | 'h', ESC_STR "Nh", MCKEY_NOACTION}, /* Alt-h */
{KEY_M_ALT | 'i', ESC_STR "Ni", MCKEY_NOACTION}, /* Alt-i */
{KEY_M_ALT | 'j', ESC_STR "Nj", MCKEY_NOACTION}, /* Alt-j */
{KEY_M_ALT | 'k', ESC_STR "Nk", MCKEY_NOACTION}, /* Alt-k */
{KEY_M_ALT | 'l', ESC_STR "Nl", MCKEY_NOACTION}, /* Alt-l */
{KEY_M_ALT | 'm', ESC_STR "Nm", MCKEY_NOACTION}, /* Alt-m */
{KEY_M_ALT | 'n', ESC_STR "Nn", MCKEY_NOACTION}, /* Alt-n */
{KEY_M_ALT | 'o', ESC_STR "No", MCKEY_NOACTION}, /* Alt-o */
{KEY_M_ALT | 'p', ESC_STR "Np", MCKEY_NOACTION}, /* Alt-p */
{KEY_M_ALT | 'q', ESC_STR "Nq", MCKEY_NOACTION}, /* Alt-q */
{KEY_M_ALT | 'r', ESC_STR "Nr", MCKEY_NOACTION}, /* Alt-r */
{KEY_M_ALT | 's', ESC_STR "Ns", MCKEY_NOACTION}, /* Alt-s */
{KEY_M_ALT | 't', ESC_STR "Nt", MCKEY_NOACTION}, /* Alt-t */
{KEY_M_ALT | 'u', ESC_STR "Nu", MCKEY_NOACTION}, /* Alt-u */
{KEY_M_ALT | 'v', ESC_STR "Nv", MCKEY_NOACTION}, /* Alt-v */
{KEY_M_ALT | 'w', ESC_STR "Nw", MCKEY_NOACTION}, /* Alt-w */
{KEY_M_ALT | 'x', ESC_STR "Nx", MCKEY_NOACTION}, /* Alt-x */
{KEY_M_ALT | 'y', ESC_STR "Ny", MCKEY_NOACTION}, /* Alt-y */
{KEY_M_ALT | 'z', ESC_STR "Nz", MCKEY_NOACTION}, /* Alt-z */
{KEY_KP_SUBTRACT, ESC_STR "[S", MCKEY_NOACTION}, /* Gr-Minus */
{KEY_KP_ADD, ESC_STR "[T", MCKEY_NOACTION}, /* Gr-Plus */
{0, NULL, MCKEY_NOACTION},
};
/* timeout for old_esc_mode in usec */
int old_esc_mode_timeout = 1000000; /* settable via env */
/* This holds all the key definitions */
static key_def *keys = NULL;
static int input_fd;
static int disabled_channels = 0; /* Disable channels checking */
static SelectList *select_list = NULL;
static int seq_buffer[SEQ_BUFFER_LEN];
static int *seq_append = NULL;
static int *pending_keys = NULL;
#ifdef __QNXNTO__
ph_dv_f ph_attach;
ph_ov_f ph_input_group;
ph_pqc_f ph_query_cursor;
#endif
#ifdef HAVE_TEXTMODE_X11_SUPPORT
static Display *x11_display;
static Window x11_window;
#endif /* HAVE_TEXTMODE_X11_SUPPORT */
/*** file scope functions **********************************************/
static int
add_selects (fd_set * select_set)
{
int top_fd = 0;
if (disabled_channels == 0) {
SelectList *p;
for (p = select_list; p != NULL; p = p->next) {
FD_SET (p->fd, select_set);
if (p->fd > top_fd)
top_fd = p->fd;
}
}
return top_fd;
}
static void
check_selects (fd_set * select_set)
{
if (disabled_channels == 0) {
gboolean retry;
do {
SelectList *p;
retry = FALSE;
for (p = select_list; p; p = p->next)
if (FD_ISSET (p->fd, select_set)) {
FD_CLR (p->fd, select_set);
(*p->callback) (p->fd, p->info);
retry = TRUE;
break;
}
} while (retry);
}
}
/* If set timeout is set, then we wait 0.1 seconds, else, we block */
static void
try_channels (int set_timeout)
{
struct timeval time_out;
static fd_set select_set;
struct timeval *timeptr;
int v;
int maxfdp;
while (1) {
FD_ZERO (&select_set);
FD_SET (input_fd, &select_set); /* Add stdin */
maxfdp = max (add_selects (&select_set), input_fd);
timeptr = NULL;
if (set_timeout) {
time_out.tv_sec = 0;
time_out.tv_usec = 100000;
timeptr = &time_out;
}
v = select (maxfdp + 1, &select_set, NULL, NULL, timeptr);
if (v > 0) {
check_selects (&select_set);
if (FD_ISSET (input_fd, &select_set))
break;
}
}
}
static key_def *
create_sequence (const char *seq, int code, int action)
{
key_def *base, *p, *attach;
for (base = attach = NULL; *seq; seq++) {
p = g_new (key_def, 1);
if (base == NULL)
base = p;
if (attach != NULL)
attach->child = p;
p->ch = *seq;
p->code = code;
p->child = p->next = NULL;
if (seq[1] == '\0')
p->action = action;
else
p->action = MCKEY_NOACTION;
attach = p;
}
return base;
}
static void
define_sequences (const key_define_t * kd)
{
int i;
for (i = 0; kd[i].code != 0; i++)
define_sequence (kd[i].code, kd[i].seq, kd[i].action);
}
static void
init_key_x11 (void)
{
#ifdef HAVE_TEXTMODE_X11_SUPPORT
if (getenv ("DISPLAY") != NULL) {
x11_display = mc_XOpenDisplay (0);
if (x11_display != NULL)
x11_window = DefaultRootWindow (x11_display);
}
#endif /* HAVE_TEXTMODE_X11_SUPPORT */
}
/* Workaround for System V Curses vt100 bug */
static int
getch_with_delay (void)
{
int c;
/* This routine could be used on systems without mouse support,
so we need to do the select check :-( */
while (1) {
if (pending_keys == NULL)
try_channels (0);
/* Try to get a character */
c = get_key_code (0);
if (c != -1)
break;
/* Failed -> wait 0.1 secs and try again */
try_channels (1);
}
/* Success -> return the character */
return c;
}
static void
xmouse_get_event (Gpm_Event * ev)
{
int btn;
static struct timeval tv1 = { 0, 0 }; /* Force first click as single */
static struct timeval tv2;
static int clicks = 0;
static int last_btn = 0;
/* Decode Xterm mouse information to a GPM style event */
/* Variable btn has following meaning: */
/* 0 = btn1 dn, 1 = btn2 dn, 2 = btn3 dn, 3 = btn up */
btn = tty_lowlevel_getch () - 32;
/* There seems to be no way of knowing which button was released */
/* So we assume all the buttons were released */
if (btn == 3) {
if (last_btn != 0) {
if ((last_btn & (GPM_B_UP | GPM_B_DOWN)) != 0) {
/* FIXME: DIRTY HACK */
/* don't generate GPM_UP after mouse wheel */
/* need for menu event handling */
ev->type = 0;
tv1.tv_sec = 0;
tv1.tv_usec = 0;
} else {
ev->type = GPM_UP | (GPM_SINGLE << clicks);
GET_TIME (tv1);
}
ev->buttons = 0;
last_btn = 0;
clicks = 0;
} else {
/* Bogus event, maybe mouse wheel */
ev->type = 0;
}
} else {
if (btn >= 32 && btn <= 34) {
btn -= 32;
ev->type = GPM_DRAG;
} else
ev->type = GPM_DOWN;
GET_TIME (tv2);
if (tv1.tv_sec && (DIF_TIME (tv1, tv2) < double_click_speed)) {
clicks++;
clicks %= 3;
} else
clicks = 0;
switch (btn) {
case 0:
ev->buttons = GPM_B_LEFT;
break;
case 1:
ev->buttons = GPM_B_MIDDLE;
break;
case 2:
ev->buttons = GPM_B_RIGHT;
break;
case 64:
ev->buttons = GPM_B_UP;
clicks = 0;
break;
case 65:
ev->buttons = GPM_B_DOWN;
clicks = 0;
break;
default:
/* Nothing */
ev->type = 0;
ev->buttons = 0;
break;
}
last_btn = ev->buttons;
}
/* Coordinates are 33-based */
/* Transform them to 1-based */
ev->x = tty_lowlevel_getch () - 32;
ev->y = tty_lowlevel_getch () - 32;
}
/*
* Get modifier state (shift, alt, ctrl) for the last key pressed.
* We are assuming that the state didn't change since the key press.
* This is only correct if get_modifier() is called very fast after
* the input was received, so that the user didn't release the
* modifier keys yet.
*/
static int
get_modifier (void)
{
int result = 0;
#ifdef __QNXNTO__
int mod_status, shift_ext_status;
static int in_photon = 0;
static int ph_ig = 0;
PhCursorInfo_t cursor_info;
#endif /* __QNXNTO__ */
#ifdef HAVE_TEXTMODE_X11_SUPPORT
if (x11_window != 0) {
Window root, child;
int root_x, root_y;
int win_x, win_y;
unsigned int mask;
mc_XQueryPointer (x11_display, x11_window, &root, &child, &root_x,
&root_y, &win_x, &win_y, &mask);
if (mask & ShiftMask)
result |= KEY_M_SHIFT;
if (mask & ControlMask)
result |= KEY_M_CTRL;
return result;
}
#endif /* HAVE_TEXTMODE_X11_SUPPORT */
#ifdef __QNXNTO__
if (in_photon == 0) {
/* First time here, let's load Photon library and attach
to Photon */
in_photon = -1;
if (getenv ("PHOTON2_PATH") != NULL) {
/* QNX 6.x has no support for RTLD_LAZY */
void *ph_handle = dlopen ("/usr/lib/libph.so", RTLD_NOW);
if (ph_handle != NULL) {
ph_attach = (ph_dv_f) dlsym (ph_handle, "PhAttach");
ph_input_group = (ph_ov_f) dlsym (ph_handle, "PhInputGroup");
ph_query_cursor = (ph_pqc_f) dlsym (ph_handle, "PhQueryCursor");
if ((ph_attach != NULL) && (ph_input_group != NULL)
&& (ph_query_cursor != NULL)) {
if ((*ph_attach) (0, 0)) { /* Attached */
ph_ig = (*ph_input_group) (0);
in_photon = 1;
}
}
}
}
}
/* We do not have Photon running. Assume we are in text
console or xterm */
if (in_photon == -1) {
if (devctl (fileno (stdin), DCMD_CHR_LINESTATUS, &mod_status, sizeof (int), NULL) == -1)
return 0;
shift_ext_status = mod_status & 0xffffff00UL;
mod_status &= 0x7f;
if (mod_status & _LINESTATUS_CON_ALT)
result |= KEY_M_ALT;
if (mod_status & _LINESTATUS_CON_CTRL)
result |= KEY_M_CTRL;
if ((mod_status & _LINESTATUS_CON_SHIFT)
|| (shift_ext_status & 0x00000800UL))
result |= KEY_M_SHIFT;
} else {
(*ph_query_cursor) (ph_ig, &cursor_info);
if (cursor_info.key_mods & 0x04)
result |= KEY_M_ALT;
if (cursor_info.key_mods & 0x02)
result |= KEY_M_CTRL;
if (cursor_info.key_mods & 0x01)
result |= KEY_M_SHIFT;
}
#endif /* __QNXNTO__ */
#if defined __linux__ || (defined __CYGWIN__ && defined TIOCLINUX)
{
unsigned char modifiers = 6;
if (ioctl (0, TIOCLINUX, &modifiers) < 0)
return 0;
/* Translate Linux modifiers into mc modifiers */
if (modifiers & SHIFT_PRESSED)
result |= KEY_M_SHIFT;
if (modifiers & (ALTL_PRESSED | ALTR_PRESSED))
result |= KEY_M_ALT;
if (modifiers & CONTROL_PRESSED)
result |= KEY_M_CTRL;
}
#endif /* !__linux__ */
return result;
}
static gboolean
push_char (int c)
{
gboolean ret = FALSE;
if (seq_append == NULL)
seq_append = seq_buffer;
if (seq_append != &(seq_buffer[SEQ_BUFFER_LEN - 2])) {
*(seq_append++) = c;
*seq_append = 0;
ret = TRUE;
}
return ret;
}
/* Apply corrections for the keycode generated in get_key_code() */
static int
correct_key_code (int code)
{
unsigned int c = code & ~KEY_M_MASK; /* code without modifier */
unsigned int mod = code & KEY_M_MASK; /* modifier */
#ifdef __QNXNTO__
unsigned int qmod; /* bunch of the QNX console
modifiers needs unchanged */
#endif /* __QNXNTO__ */
/*
* Add key modifiers directly from X11 or OS.
* Ordinary characters only get modifiers from sequences.
*/
if (c < 32 || c >= 256) {
mod |= get_modifier ();
}
/* This is needed if the newline is reported as carriage return */
if (c == '\r')
c = '\n';
/* This is reported to be useful on AIX */
if (c == KEY_SCANCEL)
c = '\t';
/* Convert Shift+Tab and Ctrl+Tab to Back Tab */
if ((c == '\t') && (mod & (KEY_M_SHIFT | KEY_M_CTRL))) {
c = KEY_BTAB;
mod = 0;
}
/* F0 is the same as F10 for out purposes */
if (c == KEY_F (0))
c = KEY_F (10);
/*
* We are not interested if Ctrl was pressed when entering control
* characters, so assume that it was. When checking for such keys,
* XCTRL macro should be used. In some cases, we are interested,
* e.g. to distinguish Ctrl-Enter from Enter.
*/
if (c < 32 && c != ESC_CHAR && c != '\t' && c != '\n') {
mod |= KEY_M_CTRL;
}
#ifdef __QNXNTO__
qmod = get_modifier ();
if ((c == 127) && (mod == 0)) { /* Add Ctrl/Alt/Shift-BackSpace */
mod |= get_modifier ();
c = KEY_BACKSPACE;
}
if ((c == '0') && (mod == 0)) { /* Add Shift-Insert on key pad */
if ((qmod & KEY_M_SHIFT) == KEY_M_SHIFT) {
mod = KEY_M_SHIFT;
c = KEY_IC;
}
}
if ((c == '.') && (mod == 0)) { /* Add Shift-Del on key pad */
if ((qmod & KEY_M_SHIFT) == KEY_M_SHIFT) {
mod = KEY_M_SHIFT;
c = KEY_DC;
}
}
#endif /* __QNXNTO__ */
/* Unrecognized 0177 is delete (preserve Ctrl) */
if (c == 0177) {
c = KEY_BACKSPACE;
}
/* Unrecognized Ctrl-d is delete */
if (c == (31 & 'd')) {
c = KEY_DC;
mod &= ~KEY_M_CTRL;
}
/* Unrecognized Ctrl-h is backspace */
if (c == (31 & 'h')) {
c = KEY_BACKSPACE;
mod &= ~KEY_M_CTRL;
}
/* Shift+BackSpace is backspace */
if (c == KEY_BACKSPACE && (mod & KEY_M_SHIFT)) {
mod &= ~KEY_M_SHIFT;
}
/* Convert Shift+Fn to F(n+10) */
if (c >= KEY_F (1) && c <= KEY_F (10) && (mod & KEY_M_SHIFT)) {
c += 10;
}
/* Remove Shift information from function keys */
if (c >= KEY_F (1) && c <= KEY_F (20)) {
mod &= ~KEY_M_SHIFT;
}
if (!alternate_plus_minus)
switch (c) {
case KEY_KP_ADD:
c = '+';
break;
case KEY_KP_SUBTRACT:
c = '-';
break;
case KEY_KP_MULTIPLY:
c = '*';
break;
}
return (mod | c);
}
static int
xgetch_second (void)
{
fd_set Read_FD_Set;
int c;
struct timeval time_out;
time_out.tv_sec = old_esc_mode_timeout / 1000000;
time_out.tv_usec = old_esc_mode_timeout % 1000000;
tty_nodelay (TRUE);
FD_ZERO (&Read_FD_Set);
FD_SET (input_fd, &Read_FD_Set);
select (input_fd + 1, &Read_FD_Set, NULL, NULL, &time_out);
c = tty_lowlevel_getch ();
tty_nodelay (FALSE);
return c;
}
static void
learn_store_key (char *buffer, char **p, int c)
{
if (*p - buffer > 253)
return;
if (c == ESC_CHAR) {
*(*p)++ = '\\';
*(*p)++ = 'e';
} else if (c < ' ') {
*(*p)++ = '^';
*(*p)++ = c + 'a' - 1;
} else if (c == '^') {
*(*p)++ = '^';
*(*p)++ = '^';
} else
*(*p)++ = (char) c;
}
static void
k_dispose (key_def * k)
{
if (k != NULL) {
k_dispose (k->child);
k_dispose (k->next);
g_free (k);
}
}
static void
s_dispose (SelectList * sel)
{
if (sel != NULL) {
s_dispose (sel->next);
g_free (sel);
}
}
/*** public functions **************************************************/
/* This has to be called before init_slang or whatever routine
calls any define_sequence */
void
init_key (void)
{
const char *term = getenv ("TERM");
/* This has to be the first define_sequence */
/* So, we can assume that the first keys member has ESC */
define_sequences (mc_default_keys);
/* Terminfo on irix does not have some keys */
if (xterm_flag
|| (term != NULL
&& (strncmp (term, "iris-ansi", 9) == 0
|| strncmp (term, "xterm", 5) == 0
|| strncmp (term, "rxvt", 4) == 0 || strcmp (term, "screen") == 0)))
define_sequences (xterm_key_defines);
/* load some additional keys (e.g. direct Alt-? support) */
load_xtra_key_defines ();
#ifdef __QNX__
if ((term != NULL) && (strncmp (term, "qnx", 3) == 0)) {
/* Modify the default value of use_8th_bit_as_meta: we would
* like to provide a working mc for a newbie who knows nothing
* about [Options|Display bits|Full 8 bits input]...
*
* Don't use 'meta'-bit, when we are dealing with a
* 'qnx*'-type terminal: clear the default value!
* These terminal types use 0xFF as an escape character,
* so use_8th_bit_as_meta==1 must not be enabled!
*
* [mc-4.1.21+,slint.c/getch(): the DEC_8BIT_HACK stuff
* is not used now (doesn't even depend on use_8th_bit_as_meta
* as in mc-3.1.2)...GREAT!...no additional code is required!]
*/
use_8th_bit_as_meta = 0;
}
#endif /* __QNX__ */
init_key_x11 ();
/* Load the qansi-m key definitions
if we are running under the qansi-m terminal */
if (term != NULL && (strncmp (term, "qansi-m", 7) == 0))
define_sequences (qansi_key_defines);
}
/* This has to be called after SLang_init_tty/slint_init */
void
init_key_input_fd (void)
{
#ifdef HAVE_SLANG
input_fd = SLang_TT_Read_FD;
#endif
}
void
done_key (void)
{
k_dispose (keys);
s_dispose (select_list);
#ifdef HAVE_TEXTMODE_X11_SUPPORT
if (x11_display)
mc_XCloseDisplay (x11_display);
#endif
}
void
add_select_channel (int fd, select_fn callback, void *info)
{
SelectList *new;
new = g_new (SelectList, 1);
new->fd = fd;
new->callback = callback;
new->info = info;
new->next = select_list;
select_list = new;
}
void
delete_select_channel (int fd)
{
SelectList *p = select_list;
SelectList *p_prev = NULL;
SelectList *p_next;
while (p != NULL)
if (p->fd == fd) {
p_next = p->next;
if (p_prev != NULL)
p_prev->next = p_next;
else
select_list = p_next;
g_free (p);
p = p_next;
} else {
p_prev = p;
p = p->next;
}
}
void
channels_up (void)
{
if (disabled_channels == 0)
fputs ("Error: channels_up called with disabled_channels = 0\n", stderr);
disabled_channels--;
}
void
channels_down (void)
{
disabled_channels++;
}
/*
* Common handler for standard movement keys in a text area. Provided
* functions are called with the "data" argument. backfn and forfn also
* get an argument indicating how many lines to scroll. Return MSG_HANDLED
* if the key was handled, MSG_NOT_HANDLED otherwise.
*/
cb_ret_t
check_movement_keys (int key, int page_size, void *data, move_fn backfn,
move_fn forfn, move_fn topfn, move_fn bottomfn)
{
switch (key) {
case KEY_UP:
case XCTRL ('p'):
(*backfn) (data, 1);
break;
case KEY_DOWN:
case XCTRL ('n'):
(*forfn) (data, 1);
break;
case KEY_PPAGE:
case ALT ('v'):
(*backfn) (data, page_size - 1);
break;
case KEY_NPAGE:
case XCTRL ('v'):
(*forfn) (data, page_size - 1);
break;
case KEY_HOME:
case KEY_M_CTRL | KEY_HOME:
case KEY_M_CTRL | KEY_PPAGE:
case KEY_A1:
case ALT ('<'):
(*topfn) (data, 0);
break;
case KEY_END:
case KEY_M_CTRL | KEY_END:
case KEY_M_CTRL | KEY_NPAGE:
case KEY_C1:
case ALT ('>'):
(*bottomfn) (data, 0);
break;
case 'b':
case KEY_BACKSPACE:
(*backfn) (data, page_size - 1);
break;
case ' ':
(*forfn) (data, page_size - 1);
break;
case 'u':
(*backfn) (data, page_size / 2);
break;
case 'd':
(*forfn) (data, page_size / 2);
break;
case 'g':
(*topfn) (data, 0);
break;
case 'G':
(*bottomfn) (data, 0);
break;
default:
return MSG_NOT_HANDLED;
}
return MSG_HANDLED;
}
static const size_t key_name_conv_tab_size = sizeof (key_name_conv_tab) /
sizeof (key_name_conv_tab[0]) - 1;
static const key_code_name_t *key_name_conv_tab_sorted[sizeof (key_name_conv_tab) /
sizeof (key_name_conv_tab[0]) - 1];
static int
key_code_name_comparator (const void *p1, const void *p2)
{
const key_code_name_t *n1 = *(const key_code_name_t **) p1;
const key_code_name_t *n2 = *(const key_code_name_t **) p2;
return str_casecmp (n1->name, n2->name);
}
static inline void
sort_key_name_conv_tab (void)
{
static gboolean has_been_sorted = FALSE;
if (!has_been_sorted) {
size_t i;
for (i = 0; i < key_name_conv_tab_size; i++)
key_name_conv_tab_sorted[i] = &key_name_conv_tab[i];
qsort (key_name_conv_tab_sorted,
key_name_conv_tab_size, sizeof (key_name_conv_tab_sorted[0]),
&key_code_name_comparator);
has_been_sorted = TRUE;
}
}
static int
lookup_keyname (const char *name, int *idx)
{
if (name[0] != '\0') {
const key_code_name_t key = { 0, name, NULL, NULL };
const key_code_name_t *keyp = &key;
key_code_name_t **res;
if (name[1] == '\0') {
*idx = -1;
return (int) name[0];
}
sort_key_name_conv_tab ();
res = bsearch (&keyp, key_name_conv_tab_sorted,
key_name_conv_tab_size,
sizeof (key_name_conv_tab_sorted[0]),
key_code_name_comparator);
if (res != NULL) {
*idx = (int) (res - (key_code_name_t **) key_name_conv_tab_sorted);
return (*res)->code;
}
}
*idx = -1;
return 0;
}
/* Return the code associated with the symbolic name keyname */
long
lookup_key (const char *name, char **label)
{
char **lc_keys, **p;
int k = -1;
int key = 0;
int lc_index = -1;
int use_meta = -1;
int use_ctrl = -1;
int use_shift = -1;
if (name == NULL)
return 0;
name = g_strstrip (g_strdup (name));
p = lc_keys = g_strsplit_set (name, "-+ ", -1);
g_free ((char *) name);
while ((p != NULL) && (*p != NULL)) {
if ((*p)[0] != '\0') {
int idx;
key = lookup_keyname (g_strstrip (*p), &idx);
if (key == KEY_M_ALT)
use_meta = idx;
else if (key == KEY_M_CTRL)
use_ctrl = idx;
else if (key == KEY_M_SHIFT)
use_shift = idx;
else {
k = key;
lc_index = idx;
break;
}
}
p++;
}
g_strfreev (lc_keys);
/* output */
if (k <= 0)
return 0;
if (label != NULL) {
GString *s;
s = g_string_new ("");
if (use_meta != -1) {
g_string_append (s, key_name_conv_tab_sorted[use_meta]->shortcut);
g_string_append_c (s, '-');
}
if (use_ctrl != -1) {
g_string_append (s, key_name_conv_tab_sorted[use_ctrl]->shortcut);
g_string_append_c (s, '-');
}
if (use_shift != -1) {
if (k < 127)
g_string_append_c (s, (gchar) g_ascii_toupper ((gchar) k));
else {
g_string_append (s, key_name_conv_tab_sorted[use_shift]->shortcut);
g_string_append_c (s, '-');
g_string_append (s, key_name_conv_tab_sorted[lc_index]->shortcut);
}
} else if (k < 128) {
if ((k >= 'A') || (lc_index < 0)
|| (key_name_conv_tab_sorted[lc_index]->shortcut == NULL))
g_string_append_c (s, (gchar) g_ascii_tolower ((gchar) k));
else
g_string_append (s, key_name_conv_tab_sorted[lc_index]->shortcut);
} else if ((lc_index != -1) && (key_name_conv_tab_sorted[lc_index]->shortcut != NULL))
g_string_append (s, key_name_conv_tab_sorted[lc_index]->shortcut);
else
g_string_append_c (s, (gchar) g_ascii_tolower ((gchar) key));
*label = g_string_free (s, FALSE);
}
if (use_shift != -1) {
if (k < 127 && k > 31 )
k = g_ascii_toupper ((gchar) k);
else
k |= KEY_M_SHIFT;
}
if (use_ctrl != -1) {
if (k < 256)
k = XCTRL (k);
else
k |= KEY_M_CTRL;
}
if (use_meta != -1)
k = ALT (k);
return (long) k;
}
/*
* Return TRUE on success, FALSE on error.
* An error happens if SEQ is a beginning of an existing longer sequence.
*/
gboolean
define_sequence (int code, const char *seq, int action)
{
key_def *base;
if (strlen (seq) > SEQ_BUFFER_LEN - 1)
return FALSE;
for (base = keys; (base != NULL) && (*seq != '\0');)
if (*seq == base->ch) {
if (base->child == 0) {
if (*(seq + 1) != '\0')
base->child = create_sequence (seq + 1, code, action);
else {
/* The sequence matches an existing one. */
base->code = code;
base->action = action;
}
return TRUE;
}
base = base->child;
seq++;
} else {
if (base->next)
base = base->next;
else {
base->next = create_sequence (seq, code, action);
return TRUE;
}
}
if (*seq == '\0') {
/* Attempt to redefine a sequence with a shorter sequence. */
return FALSE;
}
keys = create_sequence (seq, code, action);
return TRUE;
}
/*
* Check if we are idle, i.e. there are no pending keyboard or mouse
* events. Return 1 is idle, 0 is there are pending events.
*/
gboolean
is_idle (void)
{
int maxfdp;
fd_set select_set;
struct timeval time_out;
FD_ZERO (&select_set);
FD_SET (input_fd, &select_set);
maxfdp = input_fd;
#ifdef HAVE_LIBGPM
if (mouse_enabled && (use_mouse_p == MOUSE_GPM) && (gpm_fd > 0)) {
FD_SET (gpm_fd, &select_set);
maxfdp = max (maxfdp, gpm_fd);
}
#endif
time_out.tv_sec = 0;
time_out.tv_usec = 0;
return (select (maxfdp + 1, &select_set, 0, 0, &time_out) <= 0);
}
int
get_key_code (int no_delay)
{
int c;
static key_def *this = NULL, *parent;
static struct timeval esctime = { -1, -1 };
static int lastnodelay = -1;
if (no_delay != lastnodelay) {
this = NULL;
lastnodelay = no_delay;
}
pend_send:
if (pending_keys != NULL) {
int d = *pending_keys++;
check_pend:
if (*pending_keys == 0) {
pending_keys = NULL;
seq_append = NULL;
}
if ((d == ESC_CHAR) && (pending_keys != NULL)) {
d = ALT (*pending_keys++);
goto check_pend;
}
if ((d > 127 && d < 256) && use_8th_bit_as_meta)
d = ALT (d & 0x7f);
this = NULL;
return correct_key_code (d);
}
nodelay_try_again:
if (no_delay)
tty_nodelay (TRUE);
c = tty_lowlevel_getch ();
#if (defined(USE_NCURSES) || defined(USE_NCURSESW)) && defined(KEY_RESIZE)
if (c == KEY_RESIZE)
goto nodelay_try_again;
#endif
if (no_delay) {
tty_nodelay (FALSE);
if (c == -1) {
if (this != NULL && parent != NULL && parent->action == MCKEY_ESCAPE && old_esc_mode) {
struct timeval current, time_out;
if (esctime.tv_sec == -1)
return -1;
GET_TIME (current);
time_out.tv_sec = old_esc_mode_timeout / 1000000 + esctime.tv_sec;
time_out.tv_usec = old_esc_mode_timeout % 1000000 + esctime.tv_usec;
if (time_out.tv_usec > 1000000) {
time_out.tv_usec -= 1000000;
time_out.tv_sec++;
}
if (current.tv_sec < time_out.tv_sec)
return -1;
if (current.tv_sec == time_out.tv_sec && current.tv_usec < time_out.tv_usec)
return -1;
this = NULL;
pending_keys = seq_append = NULL;
return ESC_CHAR;
}
return -1;
}
} else if (c == -1) {
/* Maybe we got an incomplete match.
This we do only in delay mode, since otherwise
tty_lowlevel_getch can return -1 at any time. */
if (seq_append != NULL) {
pending_keys = seq_buffer;
goto pend_send;
}
this = NULL;
return -1;
}
/* Search the key on the root */
if (!no_delay || this == NULL) {
this = keys;
parent = NULL;
if ((c > 127 && c < 256) && use_8th_bit_as_meta) {
c &= 0x7f;
/* The first sequence defined starts with esc */
parent = keys;
this = keys->child;
}
}
while (this != NULL) {
if (c == this->ch) {
if (this->child) {
if (!push_char (c)) {
pending_keys = seq_buffer;
goto pend_send;
}
parent = this;
this = this->child;
if (parent->action == MCKEY_ESCAPE && old_esc_mode) {
if (no_delay) {
GET_TIME (esctime);
if (this == NULL) {
/* Shouldn't happen */
fputs ("Internal error\n", stderr);
exit (EXIT_FAILURE);
}
goto nodelay_try_again;
}
esctime.tv_sec = -1;
c = xgetch_second ();
if (c == -1) {
pending_keys = seq_append = NULL;
this = NULL;
return ESC_CHAR;
}
} else {
if (no_delay)
goto nodelay_try_again;
c = tty_lowlevel_getch ();
}
} else {
/* We got a complete match, return and reset search */
int code;
pending_keys = seq_append = NULL;
code = this->code;
this = NULL;
return correct_key_code (code);
}
} else {
if (this->next != NULL)
this = this->next;
else {
if ((parent != NULL) && (parent->action == MCKEY_ESCAPE)) {
/* Convert escape-digits to F-keys */
if (g_ascii_isdigit (c))
c = KEY_F (c - '0');
else if (c == ' ')
c = ESC_CHAR;
else
c = ALT (c);
pending_keys = seq_append = NULL;
this = NULL;
return correct_key_code (c);
}
/* Did not find a match or {c} was changed in the if above,
so we have to return everything we had skipped
*/
push_char (c);
pending_keys = seq_buffer;
goto pend_send;
}
}
}
this = NULL;
return correct_key_code (c);
}
/* Returns a character read from stdin with appropriate interpretation */
/* Also takes care of generated mouse events */
/* Returns EV_MOUSE if it is a mouse event */
/* Returns EV_NONE if non-blocking or interrupt set and nothing was done */
int
tty_get_event (struct Gpm_Event *event, gboolean redo_event, gboolean block)
{
int c;
static int flag = 0; /* Return value from select */
#ifdef HAVE_LIBGPM
static struct Gpm_Event ev; /* Mouse event */
#endif
struct timeval time_out;
struct timeval *time_addr = NULL;
static int dirty = 3;
if ((dirty == 3) || is_idle ()) {
mc_refresh ();
dirty = 1;
} else
dirty++;
vfs_timeout_handler ();
/* Ok, we use (event->x < 0) to signal that the event does not contain
a suitable position for the mouse, so we can't use show_mouse_pointer
on it.
*/
if (event->x > 0) {
show_mouse_pointer (event->x, event->y);
if (!redo_event)
event->x = -1;
}
/* Repeat if using mouse */
while (pending_keys == NULL) {
int maxfdp;
fd_set select_set;
FD_ZERO (&select_set);
FD_SET (input_fd, &select_set);
maxfdp = max (add_selects (&select_set), input_fd);
#ifdef HAVE_LIBGPM
if (mouse_enabled && (use_mouse_p == MOUSE_GPM)) {
if (gpm_fd < 0) {
/* Connection to gpm broken, possibly gpm has died */
mouse_enabled = FALSE;
use_mouse_p = MOUSE_NONE;
break;
}
FD_SET (gpm_fd, &select_set);
maxfdp = max (maxfdp, gpm_fd);
}
#endif
if (redo_event) {
time_out.tv_usec = mou_auto_repeat * 1000;
time_out.tv_sec = 0;
time_addr = &time_out;
} else {
int seconds;
seconds = vfs_timeouts ();
time_addr = NULL;
if (seconds != 0) {
/* the timeout could be improved and actually be
* the number of seconds until the next vfs entry
* timeouts in the stamp list.
*/
time_out.tv_sec = seconds;
time_out.tv_usec = 0;
time_addr = &time_out;
}
}
if (!block || winch_flag) {
time_addr = &time_out;
time_out.tv_sec = 0;
time_out.tv_usec = 0;
}
tty_enable_interrupt_key ();
flag = select (maxfdp + 1, &select_set, NULL, NULL, time_addr);
tty_disable_interrupt_key ();
/* select timed out: it could be for any of the following reasons:
* redo_event -> it was because of the MOU_REPEAT handler
* !block -> we did not block in the select call
* else -> 10 second timeout to check the vfs status.
*/
if (flag == 0) {
if (redo_event)
return EV_MOUSE;
if (!block || winch_flag)
return EV_NONE;
vfs_timeout_handler ();
}
if (flag == -1 && errno == EINTR)
return EV_NONE;
check_selects (&select_set);
if (FD_ISSET (input_fd, &select_set))
break;
#ifdef HAVE_LIBGPM
if (mouse_enabled && use_mouse_p == MOUSE_GPM
&& gpm_fd > 0 && FD_ISSET (gpm_fd, &select_set)) {
Gpm_GetEvent (&ev);
Gpm_FitEvent (&ev);
*event = ev;
return EV_MOUSE;
}
#endif /* !HAVE_LIBGPM */
}
#ifndef HAVE_SLANG
flag = is_wintouched (stdscr);
untouchwin (stdscr);
#endif /* !HAVE_SLANG */
c = block ? getch_with_delay () : get_key_code (1);
#ifndef HAVE_SLANG
if (flag > 0)
tty_touch_screen ();
#endif /* !HAVE_SLANG */
if (mouse_enabled && (c == MCKEY_MOUSE
#ifdef KEY_MOUSE
|| c == KEY_MOUSE
#endif /* KEY_MOUSE */
)) {
/* Mouse event */
xmouse_get_event (event);
return (event->type != 0) ? EV_MOUSE : EV_NONE;
}
return c;
}
/* Returns a key press, mouse events are discarded */
int
tty_getch (void)
{
Gpm_Event ev;
int key;
ev.x = -1;
while ((key = tty_get_event (&ev, FALSE, TRUE)) == EV_NONE);
return key;
}
char *
learn_key (void)
{
/* LEARN_TIMEOUT in usec */
#define LEARN_TIMEOUT 200000
fd_set Read_FD_Set;
struct timeval endtime;
struct timeval time_out;
int c;
char buffer[256];
char *p = buffer;
tty_keypad (FALSE); /* disable intepreting keys by ncurses */
c = tty_lowlevel_getch ();
while (c == -1)
c = tty_lowlevel_getch (); /* Sanity check, should be unnecessary */
learn_store_key (buffer, &p, c);
GET_TIME (endtime);
endtime.tv_usec += LEARN_TIMEOUT;
if (endtime.tv_usec > 1000000) {
endtime.tv_usec -= 1000000;
endtime.tv_sec++;
}
tty_nodelay (TRUE);
for (;;) {
while ((c = tty_lowlevel_getch ()) == -1) {
GET_TIME (time_out);
time_out.tv_usec = endtime.tv_usec - time_out.tv_usec;
if (time_out.tv_usec < 0)
time_out.tv_sec++;
time_out.tv_sec = endtime.tv_sec - time_out.tv_sec;
if (time_out.tv_sec >= 0 && time_out.tv_usec > 0) {
FD_ZERO (&Read_FD_Set);
FD_SET (input_fd, &Read_FD_Set);
select (input_fd + 1, &Read_FD_Set, NULL, NULL, &time_out);
} else
break;
}
if (c == -1)
break;
learn_store_key (buffer, &p, c);
}
tty_keypad (TRUE);
tty_nodelay (FALSE);
*p = '\0';
return g_strdup (buffer);
#undef LEARN_TIMEOUT
}
/* xterm and linux console only: set keypad to numeric or application
mode. Only in application keypad mode it's possible to distinguish
the '+' key and the '+' on the keypad ('*' and '-' ditto)*/
void
numeric_keypad_mode (void)
{
if (console_flag || xterm_flag) {
fputs ("\033>", stdout);
fflush (stdout);
}
}
void
application_keypad_mode (void)
{
if (console_flag || xterm_flag) {
fputs ("\033=", stdout);
fflush (stdout);
}
}
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