/****************************************************************************
- * Copyright (c) 1998-2001,2002 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2007,2008 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 *
****************************************************************************/
/*
#include <curses.priv.h>
-MODULE_ID("$Id: lib_getch.c,v 1.67 2002/09/07 17:17:59 tom Exp $")
+MODULE_ID("$Id: lib_getch.c,v 1.99 2008/09/20 19:46:13 tom Exp $")
#include <fifo_defs.h>
+#if USE_REENTRANT
+#define GetEscdelay(sp) (sp)->_ESCDELAY
+NCURSES_EXPORT(int)
+NCURSES_PUBLIC_VAR(ESCDELAY) (void)
+{
+ return SP ? GetEscdelay(SP) : 1000;
+}
+#else
+#define GetEscdelay(sp) ESCDELAY
NCURSES_EXPORT_VAR(int)
ESCDELAY = 1000; /* max interval betw. chars in funkeys, in millisecs */
+#endif
+
+#if NCURSES_EXT_FUNCS
+NCURSES_EXPORT(int)
+set_escdelay(int value)
+{
+ int code = OK;
+#if USE_REENTRANT
+ if (SP) {
+ SP->_ESCDELAY = value;
+ } else {
+ code = ERR;
+ }
+#else
+ ESCDELAY = value;
+#endif
+ return code;
+}
+#endif
+
+static int
+_nc_use_meta(WINDOW *win)
+{
+ SCREEN *sp = _nc_screen_of(win);
+ return (sp ? sp->_use_meta : 0);
+}
#ifdef NCURSES_WGETCH_EVENTS
#define TWAIT_MASK 7
#define TWAIT_MASK 3
#endif
-static inline int
-fifo_peek(void)
+/*
+ * 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 rc;
+
+#if USE_SYSMOUSE
+ if ((sp->_mouse_type == M_SYSMOUSE)
+ && (sp->_sysmouse_head < sp->_sysmouse_tail)) {
+ return 2;
+ }
+#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 |= 2;
+ }
+#endif
+ return rc;
+}
+
+static NCURSES_INLINE int
+fifo_peek(SCREEN *sp)
{
- int ch = SP->_fifo[peek];
+ int ch = sp->_fifo[peek];
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 %s from %d", _tracechar(ch), head));
+ ch = sp->_fifo[head];
+ TR(TRACE_IEVENT, ("pulling %s from %d", _nc_tracechar(sp, ch), head));
if (peek == head) {
h_inc();
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(EVENTLIST_0th(_nc_eventlist * evl))
+static NCURSES_INLINE int
+fifo_push(SCREEN *sp EVENTLIST_2nd(_nc_eventlist * evl))
{
int n;
int ch = 0;
- int mask;
+ int mask = 0;
(void) mask;
if (tail == -1)
#ifdef NCURSES_WGETCH_EVENTS
if (evl
-#if USE_GPM_SUPPORT || defined(USE_EMX_MOUSE)
- || (SP->_mouse_fd >= 0)
+#if USE_GPM_SUPPORT || USE_EMX_MOUSE || USE_SYSMOUSE
+ || (sp->_mouse_fd >= 0)
#endif
) {
- mask = _nc_timed_wait(TWAIT_MASK, -1, (int *) 0, evl);
+ mask = check_mouse_activity(sp, -1 EVENTLIST_2nd(evl));
} else
mask = 0;
if (mask & 4) {
T(("fifo_push: ungetch KEY_EVENT"));
- ungetch(KEY_EVENT);
+ _nc_ungetch(sp, KEY_EVENT);
return KEY_EVENT;
}
-#elif USE_GPM_SUPPORT || defined(USE_EMX_MOUSE)
- if (SP->_mouse_fd >= 0)
- mask = _nc_timed_wait(TWAIT_MASK, -1, (int *) 0 EVENTLIST_2nd(evl));
+#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 || defined(USE_EMX_MOUSE)
- if ((SP->_mouse_fd >= 0) && (mask & 2)) {
- SP->_mouse_event(SP);
+#if USE_GPM_SUPPORT || USE_EMX_MOUSE
+ if ((sp->_mouse_fd >= 0) && (mask & 2)) {
+ 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
{ /* Can block... */
unsigned char c2 = 0;
- n = read(SP->_ifd, &c2, 1);
+ n = read(sp->_ifd, &c2, 1);
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 %s at %d", _tracechar(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)
{
- memset(SP->_fifo, 0, sizeof(SP->_fifo));
+ memset(sp->_fifo, 0, sizeof(sp->_fifo));
head = -1;
tail = peek = 0;
}
-static int kgetch(EVENTLIST_0th(_nc_eventlist * evl));
+static int kgetch(SCREEN *EVENTLIST_2nd(_nc_eventlist * evl));
-#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 != SP) {
+ SCREEN *save_SP;
+
+ /* temporarily switch to the window's screen to check/refresh */
+ _nc_lock_global(curses);
+ save_SP = SP;
+ _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);
+ }
+}
+
+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 != SP) {
+ SCREEN *save_SP;
+
+ /* temporarily switch to the window's screen to get cooked input */
+ _nc_lock_global(curses);
+ save_SP = SP;
+ _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 use_meta
EVENTLIST_2nd(_nc_eventlist * evl))
{
+ SCREEN *sp;
int ch;
#ifdef NCURSES_WGETCH_EVENTS
long event_delay = -1;
T((T_CALLED("_nc_wgetch(%p)"), win));
*result = 0;
- if (!win)
+
+ sp = _nc_screen_of(win);
+ if (win == 0 || sp == 0) {
returnCode(ERR);
+ }
if (cooked_key_in_fifo()) {
- if (wgetch_should_refresh(win))
- wrefresh(win);
-
- *result = fifo_pull();
- returnCode(OK);
+ recur_wrefresh(win);
+ *result = fifo_pull(sp);
+ returnCode(*result >= KEY_MIN ? KEY_CODE_YES : OK);
}
#ifdef NCURSES_WGETCH_EVENTS
if (evl && (evl->count == 0))
* 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;
int rc;
TR(TRACE_IEVENT, ("filling queue in cooked mode"));
- rc = wgetnstr(win, buf, MAXCOLUMNS);
+ rc = recur_wgetnstr(win, buf);
/* ungetch in reverse order */
#ifdef NCURSES_WGETCH_EVENTS
if (rc != KEY_EVENT)
#endif
- ungetch('\n');
- for (sp = buf + strlen(buf); sp > buf; sp--)
- ungetch(sp[-1]);
+ _nc_ungetch(sp, '\n');
+ for (bufp = buf + strlen(buf); bufp > buf; bufp--)
+ _nc_ungetch(sp, bufp[-1]);
#ifdef NCURSES_WGETCH_EVENTS
/* Return it first */
if (rc == KEY_EVENT) {
*result = rc;
- returnCode(OK);
- }
+ } else
#endif
-
- *result = fifo_pull();
- returnCode(OK);
+ *result = fifo_pull(sp);
+ returnCode(*result >= KEY_MIN ? KEY_CODE_YES : OK);
}
- if (win->_use_keypad != SP->_keypad_on)
- _nc_keypad(win->_use_keypad);
+ if (win->_use_keypad != sp->_keypad_on)
+ _nc_keypad(sp, win->_use_keypad);
- if (wgetch_should_refresh(win))
- wrefresh(win);
+ recur_wrefresh(win);
- if (!win->_notimeout && (win->_delay >= 0 || SP->_cbreak > 1)) {
- int delay;
+ if (win->_notimeout || (win->_delay >= 0) || (sp->_cbreak > 1)) {
+ if (head == -1) { /* fifo is empty */
+ int delay;
+ int rc;
- TR(TRACE_IEVENT, ("timed delay in wgetch()"));
- if (SP->_cbreak > 1)
- delay = (SP->_cbreak - 1) * 100;
- else
- delay = win->_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;
+ 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 */
- int rc = _nc_timed_wait(TWAIT_MASK,
- delay,
- (int *) 0
- EVENTLIST_2nd(evl));
+ rc = check_mouse_activity(sp, delay EVENTLIST_2nd(evl));
#ifdef NCURSES_WGETCH_EVENTS
if (rc & 4) {
*result = KEY_EVENT;
- returnCode(OK);
+ returnCode(KEY_CODE_YES);
}
#endif
- if (!rc)
+ if (!rc) {
returnCode(ERR);
+ }
}
/* else go on to read data available */
}
int rc;
do {
- ch = kgetch(EVENTLIST_1st(evl));
+ ch = kgetch(sp EVENTLIST_2nd(evl));
if (ch == KEY_MOUSE) {
++runcount;
- if (SP->_mouse_inline(SP))
+ if (sp->_mouse_inline(sp))
break;
}
- if (SP->_maxclick < 0)
+ if (sp->_maxclick < 0)
break;
} while
(ch == KEY_MOUSE
- && (((rc = _nc_timed_wait(TWAIT_MASK,
- SP->_maxclick,
- (int *) 0
- EVENTLIST_2nd(evl))) != 0
+ && (((rc = check_mouse_activity(sp, sp->_maxclick
+ EVENTLIST_2nd(evl))) != 0
&& !(rc & 4))
- || !SP->_mouse_parse(runcount)));
+ || !sp->_mouse_parse(sp, runcount)));
#ifdef NCURSES_WGETCH_EVENTS
if ((rc & 4) && !ch == KEY_EVENT) {
- ungetch(ch);
+ _nc_ungetch(sp, ch);
ch = KEY_EVENT;
}
#endif
#ifdef NCURSES_WGETCH_EVENTS
/* mouse event sequence ended by an event, report event */
if (ch == KEY_EVENT) {
- ungetch(KEY_MOUSE); /* FIXME This interrupts a gesture... */
+ _nc_ungetch(sp, KEY_MOUSE); /* FIXME This interrupts a gesture... */
} else
#endif
{
/* mouse event sequence ended by keystroke, store keystroke */
- ungetch(ch);
+ _nc_ungetch(sp, ch);
ch = KEY_MOUSE;
}
}
} else {
if (head == -1)
- fifo_push(EVENTLIST_1st(evl));
- ch = fifo_pull();
+ fifo_push(sp EVENTLIST_2nd(evl));
+ ch = fifo_pull(sp);
}
if (ch == ERR) {
#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()) {
- *result = fifo_pull();
+ *result = fifo_pull(sp);
returnCode(*result >= KEY_MIN ? KEY_CODE_YES : OK);
}
}
* However, we provide the same visual result as Solaris, moving the
* cursor to the left.
*/
- if (SP->_echo && !(win->_flags & _ISPAD)) {
+ if (sp->_echo && !(win->_flags & _ISPAD)) {
chtype backup = (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
if ((ch < KEY_MIN) && (ch & 0x80))
ch &= 0x7f;
- T(("wgetch returning : %s", _tracechar(ch)));
+ T(("wgetch returning : %s", _nc_tracechar(sp, ch)));
*result = ch;
returnCode(ch >= KEY_MIN ? KEY_CODE_YES : OK);
T((T_CALLED("wgetch_events(%p,%p)"), win, evl));
code = _nc_wgetch(win,
&value,
- SP->_use_meta
+ _nc_use_meta(win)
EVENTLIST_2nd(evl));
if (code != ERR)
code = value;
T((T_CALLED("wgetch(%p)"), win));
code = _nc_wgetch(win,
&value,
- SP->_use_meta
+ _nc_use_meta(win)
EVENTLIST_2nd((_nc_eventlist *) 0));
if (code != ERR)
code = value;
*/
static int
-kgetch(EVENTLIST_0th(_nc_eventlist * evl))
+kgetch(SCREEN *sp EVENTLIST_2nd(_nc_eventlist * evl))
{
- struct tries *ptr;
+ TRIES *ptr;
int ch = 0;
- int timeleft = ESCDELAY;
+ int timeleft = GetEscdelay(sp);
TR(TRACE_IEVENT, ("kgetch() called"));
- ptr = SP->_keytry;
+ ptr = sp->_keytry;
for (;;) {
- if (cooked_key_in_fifo() && SP->_fifo[head] >= KEY_MIN) {
+ if (cooked_key_in_fifo() && sp->_fifo[head] >= KEY_MIN) {
break;
} else if (!raw_key_in_fifo()) {
- ch = fifo_push(EVENTLIST_1st(evl));
+ 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(); /* Remove KEY_EVENT from the queue */
+ 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
return ch;
}
- TR(TRACE_IEVENT, ("ch: %s", _tracechar((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;
if (ptr->value != 0) { /* sequence terminated */
TR(TRACE_IEVENT, ("end of sequence"));
if (peek == tail)
- fifo_clear();
+ fifo_clear(sp);
else
head = peek;
return (ptr->value);
int rc;
TR(TRACE_IEVENT, ("waiting for rest of sequence"));
- rc = _nc_timed_wait(TWAIT_MASK,
- timeleft,
- &timeleft
- EVENTLIST_2nd(evl));
+ rc = check_mouse_activity(sp, timeleft EVENTLIST_2nd(evl));
#ifdef NCURSES_WGETCH_EVENTS
if (rc & 4) {
TR(TRACE_IEVENT, ("interrupted by a user event"));
- /* FIXME Should have preserved timeleft for reusal... */
+ /* FIXME Should have preserved remainder timeleft for reuse... */
peek = head; /* Restart interpreting later */
return KEY_EVENT;
}
}
}
}
- ch = fifo_pull();
+ ch = fifo_pull(sp);
peek = head;
return ch;
}
projects / ncurses.git / blobdiff