/****************************************************************************
- * Copyright (c) 1998,1999,2000 Free Software Foundation, Inc. *
+ * Copyright 2018-2019,2020 Thomas E. Dickey *
+ * Copyright 1998-2015,2016 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
/****************************************************************************
* Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
* and: Eric S. Raymond <esr@snark.thyrsus.com> *
+ * and: Thomas E. Dickey 1996-on *
+ * and: Juergen Pfeifer 2009 *
****************************************************************************/
/*
#include <curses.priv.h>
-MODULE_ID("$Id: lib_getch.c,v 1.50 2000/10/09 23:53:57 Ilya.Zakharevich Exp $")
+MODULE_ID("$Id: lib_getch.c,v 1.139 2020/02/02 23:34:34 tom Exp $")
#include <fifo_defs.h>
-int ESCDELAY = 1000; /* max interval betw. chars in funkeys, in millisecs */
+#if USE_REENTRANT
+#define GetEscdelay(sp) *_nc_ptr_Escdelay(sp)
+NCURSES_EXPORT(int)
+NCURSES_PUBLIC_VAR(ESCDELAY) (void)
+{
+ return *(_nc_ptr_Escdelay(CURRENT_SCREEN));
+}
+
+NCURSES_EXPORT(int *)
+_nc_ptr_Escdelay(SCREEN *sp)
+{
+ return ptrEscdelay(sp);
+}
+#else
+#define GetEscdelay(sp) ESCDELAY
+NCURSES_EXPORT_VAR(int) ESCDELAY = 1000;
+#endif
+
+#if NCURSES_EXT_FUNCS
+NCURSES_EXPORT(int)
+NCURSES_SP_NAME(set_escdelay) (NCURSES_SP_DCLx int value)
+{
+ int code = OK;
+ if (value < 0) {
+ code = ERR;
+ } else {
+#if USE_REENTRANT
+ if (SP_PARM) {
+ SET_ESCDELAY(value);
+ } else {
+ code = ERR;
+ }
+#else
+ (void) SP_PARM;
+ ESCDELAY = value;
+#endif
+ }
+ return code;
+}
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(int)
+set_escdelay(int value)
+{
+ int code;
+ if (value < 0) {
+ code = ERR;
+ } else {
+#if USE_REENTRANT
+ code = NCURSES_SP_NAME(set_escdelay) (CURRENT_SCREEN, value);
+#else
+ ESCDELAY = value;
+ code = OK;
+#endif
+ }
+ return code;
+}
+#endif
+#endif /* NCURSES_EXT_FUNCS */
+
+#if NCURSES_EXT_FUNCS
+NCURSES_EXPORT(int)
+NCURSES_SP_NAME(get_escdelay) (NCURSES_SP_DCL0)
+{
+#if !USE_REENTRANT
+ (void) SP_PARM;
+#endif
+ return GetEscdelay(SP_PARM);
+}
-static inline int
-fifo_peek(void)
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(int)
+get_escdelay(void)
+{
+ return NCURSES_SP_NAME(get_escdelay) (CURRENT_SCREEN);
+}
+#endif
+#endif /* NCURSES_EXT_FUNCS */
+
+static int
+_nc_use_meta(WINDOW *win)
+{
+ SCREEN *sp = _nc_screen_of(win);
+ return (sp ? sp->_use_meta : 0);
+}
+
+#ifdef USE_TERM_DRIVER
+# ifdef _WIN32
+static HANDLE
+_nc_get_handle(int fd)
+{
+ intptr_t value = _get_osfhandle(fd);
+ return (HANDLE) value;
+}
+# endif
+#endif
+
+/*
+ * Check for mouse activity, returning nonzero if we find any.
+ */
+static int
+check_mouse_activity(SCREEN *sp, int delay EVENTLIST_2nd(_nc_eventlist * evl))
{
- int ch = SP->_fifo[peek];
+ int rc;
+
+#ifdef USE_TERM_DRIVER
+ TERMINAL_CONTROL_BLOCK *TCB = TCBOf(sp);
+ rc = TCBOf(sp)->drv->td_testmouse(TCBOf(sp), delay EVENTLIST_2nd(evl));
+# ifdef _WIN32
+ /* if we emulate terminfo on console, we have to use the console routine */
+ if (IsTermInfoOnConsole(sp)) {
+ HANDLE fd = _nc_get_handle(sp->_ifd);
+ rc = _nc_mingw_testmouse(sp, fd, delay EVENTLIST_2nd(evl));
+ } else
+# endif
+ rc = TCB->drv->td_testmouse(TCB, delay EVENTLIST_2nd(evl));
+#else
+#if USE_SYSMOUSE
+ if ((sp->_mouse_type == M_SYSMOUSE)
+ && (sp->_sysmouse_head < sp->_sysmouse_tail)) {
+ rc = TW_MOUSE;
+ } else
+#endif
+ {
+ rc = _nc_timed_wait(sp,
+ TWAIT_MASK,
+ delay,
+ (int *) 0
+ EVENTLIST_2nd(evl));
+#if USE_SYSMOUSE
+ if ((sp->_mouse_type == M_SYSMOUSE)
+ && (sp->_sysmouse_head < sp->_sysmouse_tail)
+ && (rc == 0)
+ && (errno == EINTR)) {
+ rc |= TW_MOUSE;
+ }
+#endif
+ }
+#endif
+ return rc;
+}
+
+static NCURSES_INLINE int
+fifo_peek(SCREEN *sp)
+{
+ int ch = (peek >= 0) ? sp->_fifo[peek] : ERR;
TR(TRACE_IEVENT, ("peeking at %d", peek));
p_inc();
return ch;
}
-static inline int
-fifo_pull(void)
+static NCURSES_INLINE int
+fifo_pull(SCREEN *sp)
{
- int ch;
- ch = SP->_fifo[head];
- TR(TRACE_IEVENT, ("pulling %d from %d", ch, head));
+ int ch = (head >= 0) ? sp->_fifo[head] : ERR;
+
+ TR(TRACE_IEVENT, ("pulling %s from %d", _nc_tracechar(sp, ch), head));
if (peek == head) {
h_inc();
peek = head;
- } else
+ } else {
h_inc();
+ }
#ifdef TRACE
- if (_nc_tracing & TRACE_IEVENT)
- _nc_fifo_dump();
+ if (USE_TRACEF(TRACE_IEVENT)) {
+ _nc_fifo_dump(sp);
+ _nc_unlock_global(tracef);
+ }
#endif
return ch;
}
-static inline int
-fifo_push(void)
+static NCURSES_INLINE int
+fifo_push(SCREEN *sp EVENTLIST_2nd(_nc_eventlist * evl))
{
int n;
- unsigned int ch;
+ int ch = 0;
+ int mask = 0;
- if (tail == -1)
+ (void) mask;
+ if (tail < 0)
return ERR;
-#ifdef HIDE_EINTR
- again:
- errno = 0;
+#ifdef NCURSES_WGETCH_EVENTS
+ if (evl
+#if USE_GPM_SUPPORT || USE_EMX_MOUSE || USE_SYSMOUSE
+ || (sp->_mouse_fd >= 0)
#endif
+ ) {
+ mask = check_mouse_activity(sp, -1 EVENTLIST_2nd(evl));
+ } else
+ mask = 0;
-#if USE_GPM_SUPPORT || defined(USE_EMX_MOUSE)
- if ((SP->_mouse_fd >= 0)
- && (_nc_timed_wait(3, -1, (int *) 0) & 2)) {
- SP->_mouse_event(SP);
+ if (mask & TW_EVENT) {
+ T(("fifo_push: ungetch KEY_EVENT"));
+ safe_ungetch(sp, KEY_EVENT);
+ return KEY_EVENT;
+ }
+#elif USE_GPM_SUPPORT || USE_EMX_MOUSE || USE_SYSMOUSE
+ if (sp->_mouse_fd >= 0) {
+ mask = check_mouse_activity(sp, -1 EVENTLIST_2nd(evl));
+ }
+#endif
+
+#if USE_GPM_SUPPORT || USE_EMX_MOUSE
+ if ((sp->_mouse_fd >= 0) && (mask & TW_MOUSE)) {
+ sp->_mouse_event(sp);
ch = KEY_MOUSE;
n = 1;
} else
#endif
- {
+#if USE_SYSMOUSE
+ if ((sp->_mouse_type == M_SYSMOUSE)
+ && (sp->_sysmouse_head < sp->_sysmouse_tail)) {
+ sp->_mouse_event(sp);
+ ch = KEY_MOUSE;
+ n = 1;
+ } else if ((sp->_mouse_type == M_SYSMOUSE)
+ && (mask <= 0) && errno == EINTR) {
+ sp->_mouse_event(sp);
+ ch = KEY_MOUSE;
+ n = 1;
+ } else
+#endif
+#ifdef USE_TERM_DRIVER
+ if ((sp->_mouse_type == M_TERM_DRIVER)
+ && (sp->_drv_mouse_head < sp->_drv_mouse_tail)) {
+ sp->_mouse_event(sp);
+ ch = KEY_MOUSE;
+ n = 1;
+ } else
+#endif
+#if USE_KLIBC_KBD
+ if (NC_ISATTY(sp->_ifd) && sp->_cbreak) {
+ ch = _read_kbd(0, 1, !sp->_raw);
+ n = (ch == -1) ? -1 : 1;
+ sp->_extended_key = (ch == 0);
+ } else
+#endif
+ { /* Can block... */
+#ifdef USE_TERM_DRIVER
+ int buf;
+#ifdef _WIN32
+ if (NC_ISATTY(sp->_ifd) && IsTermInfoOnConsole(sp) && sp->_cbreak)
+ n = _nc_mingw_console_read(sp,
+ _nc_get_handle(sp->_ifd),
+ &buf);
+ else
+#endif
+ n = CallDriver_1(sp, td_read, &buf);
+ ch = buf;
+#else
unsigned char c2 = 0;
- n = read(SP->_ifd, &c2, 1);
- ch = c2 & 0xff;
- }
-
-#ifdef HIDE_EINTR
- /*
- * Under System V curses with non-restarting signals, getch() returns
- * with value ERR when a handled signal keeps it from completing.
- * If signals restart system calls, OTOH, the signal is invisible
- * except to its handler.
- *
- * We don't want this difference to show. This piece of code
- * tries to make it look like we always have restarting signals.
- */
- if (n <= 0 && errno == EINTR)
- goto again;
+# if USE_PTHREADS_EINTR
+# if USE_WEAK_SYMBOLS
+ if ((pthread_self) && (pthread_kill) && (pthread_equal))
+# endif
+ _nc_globals.read_thread = pthread_self();
+# endif
+ n = (int) read(sp->_ifd, &c2, (size_t) 1);
+#if USE_PTHREADS_EINTR
+ _nc_globals.read_thread = 0;
+#endif
+ ch = c2;
#endif
+ }
if ((n == -1) || (n == 0)) {
- TR(TRACE_IEVENT, ("read(%d,&ch,1)=%d, errno=%d", SP->_ifd, n, errno));
+ TR(TRACE_IEVENT, ("read(%d,&ch,1)=%d, errno=%d", sp->_ifd, n, errno));
ch = ERR;
}
TR(TRACE_IEVENT, ("read %d characters", n));
- SP->_fifo[tail] = ch;
- SP->_fifohold = 0;
+ sp->_fifo[tail] = ch;
+ sp->_fifohold = 0;
if (head == -1)
head = peek = tail;
t_inc();
- TR(TRACE_IEVENT, ("pushed %#x at %d", ch, tail));
+ TR(TRACE_IEVENT, ("pushed %s at %d", _nc_tracechar(sp, ch), tail));
#ifdef TRACE
- if (_nc_tracing & TRACE_IEVENT)
- _nc_fifo_dump();
+ if (USE_TRACEF(TRACE_IEVENT)) {
+ _nc_fifo_dump(sp);
+ _nc_unlock_global(tracef);
+ }
#endif
return ch;
}
-static inline void
-fifo_clear(void)
+static NCURSES_INLINE void
+fifo_clear(SCREEN *sp)
{
- int i;
- for (i = 0; i < FIFO_SIZE; i++)
- SP->_fifo[i] = 0;
+ memset(sp->_fifo, 0, sizeof(sp->_fifo));
head = -1;
tail = peek = 0;
}
-static int kgetch(WINDOW *);
+static int kgetch(SCREEN *, bool EVENTLIST_2nd(_nc_eventlist *));
-#define wgetch_should_refresh(win) (\
- (is_wintouched(win) || (win->_flags & _HASMOVED)) \
- && !(win->_flags & _ISPAD))
+static void
+recur_wrefresh(WINDOW *win)
+{
+#ifdef USE_PTHREADS
+ SCREEN *sp = _nc_screen_of(win);
+ if (_nc_use_pthreads && sp != CURRENT_SCREEN) {
+ SCREEN *save_SP;
+
+ /* temporarily switch to the window's screen to check/refresh */
+ _nc_lock_global(curses);
+ save_SP = CURRENT_SCREEN;
+ _nc_set_screen(sp);
+ recur_wrefresh(win);
+ _nc_set_screen(save_SP);
+ _nc_unlock_global(curses);
+ } else
+#endif
+ if ((is_wintouched(win) || (win->_flags & _HASMOVED))
+ && !(win->_flags & _ISPAD)) {
+ wrefresh(win);
+ }
+}
-int
-wgetch(WINDOW *win)
+static int
+recur_wgetnstr(WINDOW *win, char *buf)
{
+ SCREEN *sp = _nc_screen_of(win);
+ int rc;
+
+ if (sp != 0) {
+#ifdef USE_PTHREADS
+ if (_nc_use_pthreads && sp != CURRENT_SCREEN) {
+ SCREEN *save_SP;
+
+ /* temporarily switch to the window's screen to get cooked input */
+ _nc_lock_global(curses);
+ save_SP = CURRENT_SCREEN;
+ _nc_set_screen(sp);
+ rc = recur_wgetnstr(win, buf);
+ _nc_set_screen(save_SP);
+ _nc_unlock_global(curses);
+ } else
+#endif
+ {
+ sp->_called_wgetch = TRUE;
+ rc = wgetnstr(win, buf, MAXCOLUMNS);
+ sp->_called_wgetch = FALSE;
+ }
+ } else {
+ rc = ERR;
+ }
+ return rc;
+}
+
+NCURSES_EXPORT(int)
+_nc_wgetch(WINDOW *win,
+ int *result,
+ int use_meta
+ EVENTLIST_2nd(_nc_eventlist * evl))
+{
+ SCREEN *sp;
int ch;
+ int rc = 0;
+#ifdef NCURSES_WGETCH_EVENTS
+ int event_delay = -1;
+#endif
- T((T_CALLED("wgetch(%p)"), win));
+ T((T_CALLED("_nc_wgetch(%p)"), (void *) win));
- if (!win)
+ *result = 0;
+
+ sp = _nc_screen_of(win);
+ if (win == 0 || sp == 0) {
returnCode(ERR);
+ }
if (cooked_key_in_fifo()) {
- if (wgetch_should_refresh(win))
- wrefresh(win);
-
- ch = fifo_pull();
- T(("wgetch returning (pre-cooked): %#x = %s", ch, _trace_key(ch)));
- returnCode(ch);
+ recur_wrefresh(win);
+ *result = fifo_pull(sp);
+ returnCode(*result >= KEY_MIN ? KEY_CODE_YES : OK);
}
+#ifdef NCURSES_WGETCH_EVENTS
+ if (evl && (evl->count == 0))
+ evl = NULL;
+ event_delay = _nc_eventlist_timeout(evl);
+#endif
/*
* Handle cooked mode. Grab a string from the screen,
* stuff its contents in the FIFO queue, and pop off
* the first character to return it.
*/
- if (head == -1 && !SP->_raw && !SP->_cbreak) {
- char buf[MAXCOLUMNS], *sp;
+ if (head == -1 &&
+ !sp->_notty &&
+ !sp->_raw &&
+ !sp->_cbreak &&
+ !sp->_called_wgetch) {
+ char buf[MAXCOLUMNS], *bufp;
TR(TRACE_IEVENT, ("filling queue in cooked mode"));
- wgetnstr(win, buf, MAXCOLUMNS);
-
/* ungetch in reverse order */
- ungetch('\n');
- for (sp = buf + strlen(buf); sp > buf; sp--)
- ungetch(sp[-1]);
+#ifdef NCURSES_WGETCH_EVENTS
+ rc = recur_wgetnstr(win, buf);
+ if (rc != KEY_EVENT && rc != ERR)
+ safe_ungetch(sp, '\n');
+#else
+ if (recur_wgetnstr(win, buf) != ERR)
+ safe_ungetch(sp, '\n');
+#endif
+ for (bufp = buf + strlen(buf); bufp > buf; bufp--)
+ safe_ungetch(sp, bufp[-1]);
- returnCode(fifo_pull());
+#ifdef NCURSES_WGETCH_EVENTS
+ /* Return it first */
+ if (rc == KEY_EVENT) {
+ *result = rc;
+ } else
+#endif
+ *result = fifo_pull(sp);
+ returnCode(*result >= KEY_MIN ? KEY_CODE_YES : OK);
}
- if (wgetch_should_refresh(win))
- wrefresh(win);
+ if (win->_use_keypad != sp->_keypad_on)
+ _nc_keypad(sp, win->_use_keypad);
- if (!win->_notimeout && (win->_delay >= 0 || SP->_cbreak > 1)) {
- int delay;
+ recur_wrefresh(win);
- TR(TRACE_IEVENT, ("timed delay in wgetch()"));
- if (SP->_cbreak > 1)
- delay = (SP->_cbreak - 1) * 100;
- else
- delay = win->_delay;
+ if (win->_notimeout || (win->_delay >= 0) || (sp->_cbreak > 1)) {
+ if (head == -1) { /* fifo is empty */
+ int delay;
+
+ TR(TRACE_IEVENT, ("timed delay in wgetch()"));
+ if (sp->_cbreak > 1)
+ delay = (sp->_cbreak - 1) * 100;
+ else
+ delay = win->_delay;
+
+#ifdef NCURSES_WGETCH_EVENTS
+ if (event_delay >= 0 && delay > event_delay)
+ delay = event_delay;
+#endif
- TR(TRACE_IEVENT, ("delay is %d milliseconds", delay));
+ TR(TRACE_IEVENT, ("delay is %d milliseconds", delay));
- if (head == -1) /* fifo is empty */
- if (!_nc_timed_wait(3, delay, (int *) 0))
- returnCode(ERR);
+ rc = check_mouse_activity(sp, delay EVENTLIST_2nd(evl));
+
+#ifdef NCURSES_WGETCH_EVENTS
+ if (rc & TW_EVENT) {
+ *result = KEY_EVENT;
+ returnCode(KEY_CODE_YES);
+ }
+#endif
+ if (!rc) {
+ goto check_sigwinch;
+ }
+ }
/* else go on to read data available */
}
int runcount = 0;
do {
- ch = kgetch(win);
+ ch = kgetch(sp, win->_notimeout EVENTLIST_2nd(evl));
if (ch == KEY_MOUSE) {
++runcount;
- if (SP->_mouse_inline(SP))
+ if (sp->_mouse_inline(sp))
break;
}
+ if (sp->_maxclick < 0)
+ break;
} while
(ch == KEY_MOUSE
- && (_nc_timed_wait(3, SP->_maxclick, (int *) 0)
- || !SP->_mouse_parse(runcount)));
+ && (((rc = check_mouse_activity(sp, sp->_maxclick
+ EVENTLIST_2nd(evl))) != 0
+ && !(rc & TW_EVENT))
+ || !sp->_mouse_parse(sp, runcount)));
+#ifdef NCURSES_WGETCH_EVENTS
+ if ((rc & TW_EVENT) && !(ch == KEY_EVENT)) {
+ safe_ungetch(sp, ch);
+ ch = KEY_EVENT;
+ }
+#endif
if (runcount > 0 && ch != KEY_MOUSE) {
- /* mouse event sequence ended by keystroke, push it */
- ungetch(ch);
- ch = KEY_MOUSE;
+#ifdef NCURSES_WGETCH_EVENTS
+ /* mouse event sequence ended by an event, report event */
+ if (ch == KEY_EVENT) {
+ safe_ungetch(sp, KEY_MOUSE); /* FIXME This interrupts a gesture... */
+ } else
+#endif
+ {
+ /* mouse event sequence ended by keystroke, store keystroke */
+ safe_ungetch(sp, ch);
+ ch = KEY_MOUSE;
+ }
}
} else {
if (head == -1)
- fifo_push();
- ch = fifo_pull();
+ fifo_push(sp EVENTLIST_2nd(evl));
+ ch = fifo_pull(sp);
}
if (ch == ERR) {
+ check_sigwinch:
#if USE_SIZECHANGE
- if (SP->_sig_winch) {
- _nc_update_screensize();
+ if (_nc_handle_sigwinch(sp)) {
+ _nc_update_screensize(sp);
/* resizeterm can push KEY_RESIZE */
if (cooked_key_in_fifo()) {
- ch = fifo_pull();
- T(("wgetch returning (pre-cooked): %#x = %s", ch, _trace_key(ch)));
- returnCode(ch);
+ *result = fifo_pull(sp);
+ /*
+ * Get the ERR from queue -- it is from WINCH,
+ * so we should take it out, the "error" is handled.
+ */
+ if (fifo_peek(sp) == -1)
+ fifo_pull(sp);
+ returnCode(*result >= KEY_MIN ? KEY_CODE_YES : OK);
}
}
#endif
- T(("wgetch returning ERR"));
returnCode(ERR);
}
*
* If carriage return is defined as a function key in the
* terminfo, e.g., kent, then Solaris may return either ^J (or ^M
- * if nonl() is set) or KEY_ENTER depending on the echo() mode.
+ * if nonl() is set) or KEY_ENTER depending on the echo() mode.
* We echo before translating carriage return based on nonl(),
* since the visual result simply moves the cursor to column 0.
*
* However, we provide the same visual result as Solaris, moving the
* cursor to the left.
*/
- if (SP->_echo && !(win->_flags & _ISPAD)) {
- chtype backup = (ch == KEY_BACKSPACE) ? '\b' : ch;
+ if (sp->_echo && !(win->_flags & _ISPAD)) {
+ chtype backup = (chtype) ((ch == KEY_BACKSPACE) ? '\b' : ch);
if (backup < KEY_MIN)
wechochar(win, backup);
}
/*
* Simulate ICRNL mode
*/
- if ((ch == '\r') && SP->_nl)
+ if ((ch == '\r') && sp->_nl)
ch = '\n';
/* Strip 8th-bit if so desired. We do this only for characters that
* that display only 7-bit characters. Note that 'ch' may be a
* function key at this point, so we mustn't strip _those_.
*/
- if ((ch < KEY_MIN) && (ch & 0x80))
- if (!SP->_use_meta)
+ if (!use_meta)
+ if ((ch < KEY_MIN) && (ch & 0x80))
ch &= 0x7f;
- T(("wgetch returning : %#x = %s", ch, _trace_key(ch)));
+ T(("wgetch returning : %s", _nc_tracechar(sp, ch)));
- returnCode(ch);
+ *result = ch;
+ returnCode(ch >= KEY_MIN ? KEY_CODE_YES : OK);
+}
+
+#ifdef NCURSES_WGETCH_EVENTS
+NCURSES_EXPORT(int)
+wgetch_events(WINDOW *win, _nc_eventlist * evl)
+{
+ int code;
+ int value;
+
+ T((T_CALLED("wgetch_events(%p,%p)"), (void *) win, (void *) evl));
+ code = _nc_wgetch(win,
+ &value,
+ _nc_use_meta(win)
+ EVENTLIST_2nd(evl));
+ if (code != ERR)
+ code = value;
+ returnCode(code);
+}
+#endif
+
+NCURSES_EXPORT(int)
+wgetch(WINDOW *win)
+{
+ int code;
+ int value;
+
+ T((T_CALLED("wgetch(%p)"), (void *) win));
+ code = _nc_wgetch(win,
+ &value,
+ _nc_use_meta(win)
+ EVENTLIST_2nd((_nc_eventlist *) 0));
+ if (code != ERR)
+ code = value;
+ returnCode(code);
}
/*
** sequence is received by the time the alarm goes off, pass through
** the sequence gotten so far.
**
-** This function must be called when there is no cooked keys in queue.
+** This function must be called when there are no cooked keys in queue.
** (that is head==-1 || peek==head)
**
*/
static int
-kgetch(WINDOW *win GCC_UNUSED)
+kgetch(SCREEN *sp, bool forever EVENTLIST_2nd(_nc_eventlist * evl))
{
- struct tries *ptr;
+ TRIES *ptr;
int ch = 0;
- int timeleft = ESCDELAY;
+ int timeleft = forever ? 9999999 : GetEscdelay(sp);
- TR(TRACE_IEVENT, ("kgetch(%p) called", win));
+ TR(TRACE_IEVENT, ("kgetch() called"));
- ptr = SP->_keytry;
+ ptr = sp->_keytry;
for (;;) {
- if (!raw_key_in_fifo()) {
- if (fifo_push() == ERR) {
+ if (cooked_key_in_fifo() && sp->_fifo[head] >= KEY_MIN) {
+ break;
+ } else if (!raw_key_in_fifo()) {
+ ch = fifo_push(sp EVENTLIST_2nd(evl));
+ if (ch == ERR) {
peek = head; /* the keys stay uninterpreted */
return ERR;
}
+#ifdef NCURSES_WGETCH_EVENTS
+ else if (ch == KEY_EVENT) {
+ peek = head; /* the keys stay uninterpreted */
+ return fifo_pull(sp); /* Remove KEY_EVENT from the queue */
+ }
+#endif
}
- ch = fifo_peek();
+
+ ch = fifo_peek(sp);
if (ch >= KEY_MIN) {
+ /* If not first in queue, somebody put this key there on purpose in
+ * emergency. Consider it higher priority than the unfinished
+ * keysequence we are parsing.
+ */
peek = head;
/* assume the key is the last in fifo */
t_dec(); /* remove the key */
return ch;
}
- TR(TRACE_IEVENT, ("ch: %s", _trace_key((unsigned char) ch)));
+ TR(TRACE_IEVENT, ("ch: %s", _nc_tracechar(sp, (unsigned char) ch)));
while ((ptr != NULL) && (ptr->ch != (unsigned char) ch))
ptr = ptr->sibling;
-#ifdef TRACE
+
if (ptr == NULL) {
TR(TRACE_IEVENT, ("ptr is null"));
- } else
- TR(TRACE_IEVENT, ("ptr=%p, ch=%d, value=%d",
- ptr, ptr->ch, ptr->value));
-#endif /* TRACE */
-
- if (ptr == NULL)
break;
+ }
+ TR(TRACE_IEVENT, ("ptr=%p, ch=%d, value=%d",
+ (void *) ptr, ptr->ch, ptr->value));
if (ptr->value != 0) { /* sequence terminated */
TR(TRACE_IEVENT, ("end of sequence"));
- if (peek == tail)
- fifo_clear();
- else
+ if (peek == tail) {
+ fifo_clear(sp);
+ } else {
head = peek;
+ }
return (ptr->value);
}
ptr = ptr->child;
if (!raw_key_in_fifo()) {
+ int rc;
+
TR(TRACE_IEVENT, ("waiting for rest of sequence"));
- if (!_nc_timed_wait(3, timeleft, &timeleft)) {
+ rc = check_mouse_activity(sp, timeleft EVENTLIST_2nd(evl));
+#ifdef NCURSES_WGETCH_EVENTS
+ if (rc & TW_EVENT) {
+ TR(TRACE_IEVENT, ("interrupted by a user event"));
+ /* FIXME Should have preserved remainder timeleft for reuse... */
+ peek = head; /* Restart interpreting later */
+ return KEY_EVENT;
+ }
+#endif
+ if (!rc) {
TR(TRACE_IEVENT, ("ran out of time"));
break;
}
}
}
- ch = fifo_pull();
+ ch = fifo_pull(sp);
peek = head;
return ch;
}
projects / ncurses.git / blobdiff