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Sort out escape key handling so it works.

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This commit is contained in:
Nicholas Marriott 2009-03-02 16:55:23 +00:00
parent 792b4db4a7
commit 57f5f44d0f
3 changed files with 46 additions and 46 deletions
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7
CHANGES
View File

@ -1,3 +1,8 @@
02 March 2009
* Make escape key timer work properly so escape+key can be used without
lightning fast key presses.
13 February 2009
* Redo mode keys slightly more cleanly and apply them to command prompt
@ -1114,7 +1119,7 @@
(including mutt, emacs). No status bar yet and no key remapping or other
customisation.
$Id: CHANGES,v 1.255 2009-02-13 21:39:45 nicm Exp $
$Id: CHANGES,v 1.256 2009-03-02 16:55:23 nicm Exp $
LocalWords: showw utf UTF fulvio ciriaco joshe OSC APC gettime abc DEF OA clr
LocalWords: rivo nurges lscm Erdely eol smysession mysession ek dstname RB ms

5
tmux.h
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@ -1,4 +1,4 @@
/* $Id: tmux.h,v 1.274 2009-02-21 17:46:13 nicm Exp $ */
/* $Id: tmux.h,v 1.275 2009-03-02 16:55:23 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@ -126,6 +126,9 @@ extern const char *__progname;
/* Automatic name refresh interval, in milliseconds. */
#define NAME_INTERVAL 500
/* Escape timer period, in milliseconds. */
#define ESCAPE_PERIOD 250
/* Fatal errors. */
#define fatal(msg) log_fatal("%s: %s", __func__, msg);
#define fatalx(msg) log_fatalx("%s: %s", __func__, msg);

80
tty-keys.c
View File

@ -1,4 +1,4 @@
/* $Id: tty-keys.c,v 1.22 2009-02-16 18:43:07 nicm Exp $ */
/* $Id: tty-keys.c,v 1.23 2009-03-02 16:55:23 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@ -239,41 +239,35 @@ tty_keys_next(struct tty *tty, int *key, u_char *mouse)
/* If a normal key, return it. */
if (*buf != '\033') {
*key = buffer_read8(tty->in);
return (0);
goto found;
}
/* Look for matching key string and return if found. */
tk = tty_keys_find(tty, buf + 1, len - 1, &size);
if (tk != NULL) {
*key = tk->key;
buffer_remove(tty->in, size + 1);
tty->flags &= ~TTY_ESCAPE;
return (0);
*key = tk->key;
goto found;
}
/* Not found. Is this a mouse key press? */
*key = tty_keys_parse_mouse(tty, buf, len, &size, mouse);
if (*key != KEYC_NONE) {
buffer_remove(tty->in, size);
tty->flags &= ~TTY_ESCAPE;
return (0);
goto found;
}
/* Not found. Try to parse xterm-type arguments. */
*key = tty_keys_parse_xterm(tty, buf, len, &size);
if (*key != KEYC_NONE) {
buffer_remove(tty->in, size);
tty->flags &= ~TTY_ESCAPE;
return (0);
goto found;
}
/* Escape but no key string. If the timer isn't started, start it. */
if (!(tty->flags & TTY_ESCAPE)) {
tv.tv_sec = 0;
tv.tv_usec = 500 * 1000L;
tv.tv_usec = ESCAPE_PERIOD * 1000L;
if (gettimeofday(&tty->key_timer, NULL) != 0)
fatal("gettimeofday");
timeradd(&tty->key_timer, &tv, &tty->key_timer);
@ -282,41 +276,39 @@ tty_keys_next(struct tty *tty, int *key, u_char *mouse)
return (1);
}
/* Otherwise, if the timer hasn't expired, wait. */
/* Skip the escape. */
buf++;
len--;
/* Is there a normal key following? */
if (len != 0 && *buf != '\033') {
buffer_remove(tty->in, 1);
*key = KEYC_ADDESC(buffer_read8(tty->in));
goto found;
}
/* Or a key string? */
if (len > 1) {
tk = tty_keys_find(tty, buf + 1, len - 1, &size);
if (tk != NULL) {
buffer_remove(tty->in, size + 1);
*key = KEYC_ADDESC(tk->key);
goto found;
}
}
/* If the timer hasn't expired, keep waiting . */
if (gettimeofday(&tv, NULL) != 0)
fatal("gettimeofday");
if (!timercmp(&tty->key_timer, &tv, >))
if (timercmp(&tty->key_timer, &tv, >))
return (1);
/* Give up and return the escape. */
buffer_remove(tty->in, 1);
*key = '\033';
found:
tty->flags &= ~TTY_ESCAPE;
/* Remove the leading escape. */
buffer_remove(tty->in, 1);
buf = BUFFER_OUT(tty->in);
len = BUFFER_USED(tty->in);
/* If we have no following data, return escape. */
if (len == 0) {
*key = '\033';
return (0);
}
/* If a normal key follows, return it. */
if (*buf != '\033') {
*key = KEYC_ADDESC(buffer_read8(tty->in));
return (0);
}
/* Try to look up the key. */
tk = tty_keys_find(tty, buf + 1, len - 1, &size);
if (tk != NULL) {
*key = KEYC_ADDESC(tk->key);
buffer_remove(tty->in, size + 1);
return (0);
}
/* If not found, return escape-escape. */
*key = KEYC_ADDESC('\033');
buffer_remove(tty->in, 1);
return (0);
}