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curs_lib.c
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curs_lib.c
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/**
* Copyright (C) 1996-2002,2010,2012-2013 Michael R. Elkins <[email protected]>
* Copyright (C) 2004 g10 Code GmbH
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <langinfo.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
#include <sys/types.h>
#include <termios.h>
#include <time.h>
#include <unistd.h>
#include "mutt.h"
#include "mbyte.h"
#include "mutt_curses.h"
#include "mutt_menu.h"
#include "pager.h"
#ifdef HAVE_ISWBLANK
#include <wctype.h>
#endif
#ifdef USE_NOTMUCH
#include "mutt_notmuch.h"
#endif
/* not possible to unget more than one char under some curses libs, and it
* is impossible to unget function keys in SLang, so roll our own input
* buffering routines.
*/
/* These are used for macros and exec/push commands.
* They can be temporarily ignored by setting OPTIGNOREMACROEVENTS
*/
static size_t MacroBufferCount = 0;
static size_t MacroBufferLen = 0;
static struct Event *MacroEvents;
/* These are used in all other "normal" situations, and are not
* ignored when setting OPTIGNOREMACROEVENTS
*/
static size_t UngetCount = 0;
static size_t UngetLen = 0;
static struct Event *UngetKeyEvents;
struct MuttWindow *MuttHelpWindow = NULL;
struct MuttWindow *MuttIndexWindow = NULL;
struct MuttWindow *MuttStatusWindow = NULL;
struct MuttWindow *MuttMessageWindow = NULL;
#ifdef USE_SIDEBAR
struct MuttWindow *MuttSidebarWindow = NULL;
#endif
static void reflow_message_window_rows(int mw_rows);
void mutt_refresh(void)
{
/* don't refresh when we are waiting for a child. */
if (option(OPTKEEPQUIET))
return;
/* don't refresh in the middle of macros unless necessary */
if (MacroBufferCount && !option(OPTFORCEREFRESH) && !option(OPTIGNOREMACROEVENTS))
return;
/* else */
refresh();
}
/* Make sure that the next refresh does a full refresh. This could be
optimized by not doing it at all if DISPLAY is set as this might
indicate that a GUI based pinentry was used. Having an option to
customize this is of course the Mutt way. */
void mutt_need_hard_redraw(void)
{
keypad(stdscr, true);
clearok(stdscr, true);
mutt_set_current_menu_redraw_full();
}
struct Event mutt_getch(void)
{
int ch;
struct Event err = { -1, OP_NULL }, ret;
struct Event timeout = { -2, OP_NULL };
if (UngetCount)
return UngetKeyEvents[--UngetCount];
if (!option(OPTIGNOREMACROEVENTS) && MacroBufferCount)
return MacroEvents[--MacroBufferCount];
SigInt = 0;
mutt_allow_interrupt(1);
#ifdef KEY_RESIZE
/* ncurses 4.2 sends this when the screen is resized */
ch = KEY_RESIZE;
while (ch == KEY_RESIZE)
#endif /* KEY_RESIZE */
ch = getch();
mutt_allow_interrupt(0);
if (SigInt)
{
mutt_query_exit();
return err;
}
/* either timeout, a sigwinch (if timeout is set), or the terminal
* has been lost */
if (ch == ERR)
{
if (!isatty(0))
{
endwin();
exit(1);
}
return timeout;
}
if ((ch & 0x80) && option(OPTMETAKEY))
{
/* send ALT-x as ESC-x */
ch &= ~0x80;
mutt_unget_event(ch, 0);
ret.ch = '\033';
ret.op = 0;
return ret;
}
ret.ch = ch;
ret.op = 0;
return (ch == ctrl('G') ? err : ret);
}
int _mutt_get_field(const char *field, char *buf, size_t buflen, int complete,
int multiple, char ***files, int *numfiles)
{
int ret;
int x;
struct EnterState *es = mutt_new_enter_state();
do
{
#if defined(USE_SLANG_CURSES) || defined(HAVE_RESIZETERM)
if (SigWinch)
{
SigWinch = 0;
mutt_resize_screen();
clearok(stdscr, TRUE);
mutt_current_menu_redraw();
}
#endif
mutt_window_clearline(MuttMessageWindow, 0);
SETCOLOR(MT_COLOR_PROMPT);
addstr((char *) field); /* cast to get around bad prototypes */
NORMAL_COLOR;
mutt_refresh();
mutt_window_getyx(MuttMessageWindow, NULL, &x);
ret = _mutt_enter_string(buf, buflen, x, complete, multiple, files, numfiles, es);
} while (ret == 1);
mutt_window_clearline(MuttMessageWindow, 0);
mutt_free_enter_state(&es);
return ret;
}
int mutt_get_field_unbuffered(char *msg, char *buf, size_t buflen, int flags)
{
int rc;
set_option(OPTIGNOREMACROEVENTS);
rc = mutt_get_field(msg, buf, buflen, flags);
unset_option(OPTIGNOREMACROEVENTS);
return rc;
}
void mutt_clear_error(void)
{
Errorbuf[0] = 0;
if (!option(OPTNOCURSES))
mutt_window_clearline(MuttMessageWindow, 0);
}
void mutt_edit_file(const char *editor, const char *data)
{
char cmd[LONG_STRING];
mutt_endwin(NULL);
mutt_expand_file_fmt(cmd, sizeof(cmd), editor, data);
if (mutt_system(cmd))
{
mutt_error(_("Error running \"%s\"!"), cmd);
mutt_sleep(2);
}
#if defined(USE_SLANG_CURSES) || defined(HAVE_RESIZETERM)
/* the terminal may have been resized while the editor owned it */
mutt_resize_screen();
#endif
keypad(stdscr, true);
clearok(stdscr, true);
}
int mutt_yesorno(const char *msg, int def)
{
struct Event ch;
char *yes = _("yes");
char *no = _("no");
char *answer_string = NULL;
int answer_string_wid, msg_wid;
size_t trunc_msg_len;
int redraw = 1, prompt_lines = 1;
char *expr = NULL;
regex_t reyes;
regex_t reno;
int reyes_ok;
int reno_ok;
char answer[2];
answer[1] = 0;
reyes_ok = (expr = nl_langinfo(YESEXPR)) && expr[0] == '^' &&
!REGCOMP(&reyes, expr, REG_NOSUB);
reno_ok = (expr = nl_langinfo(NOEXPR)) && expr[0] == '^' &&
!REGCOMP(&reno, expr, REG_NOSUB);
/*
* In order to prevent the default answer to the question to wrapped
* around the screen in the even the question is wider than the screen,
* ensure there is enough room for the answer and truncate the question
* to fit.
*/
safe_asprintf(&answer_string, " ([%s]/%s): ", def == MUTT_YES ? yes : no,
def == MUTT_YES ? no : yes);
answer_string_wid = mutt_strwidth(answer_string);
msg_wid = mutt_strwidth(msg);
while (true)
{
if (redraw || SigWinch)
{
redraw = 0;
#if defined(USE_SLANG_CURSES) || defined(HAVE_RESIZETERM)
if (SigWinch)
{
SigWinch = 0;
mutt_resize_screen();
clearok(stdscr, TRUE);
mutt_current_menu_redraw();
}
#endif
if (MuttMessageWindow->cols)
{
prompt_lines = (msg_wid + answer_string_wid + MuttMessageWindow->cols - 1) /
MuttMessageWindow->cols;
prompt_lines = MAX(1, MIN(3, prompt_lines));
}
if (prompt_lines != MuttMessageWindow->rows)
{
reflow_message_window_rows(prompt_lines);
mutt_current_menu_redraw();
}
/* maxlen here is sort of arbitrary, so pick a reasonable upper bound */
trunc_msg_len = mutt_wstr_trunc(
msg, 4 * prompt_lines * MuttMessageWindow->cols,
prompt_lines * MuttMessageWindow->cols - answer_string_wid, NULL);
mutt_window_move(MuttMessageWindow, 0, 0);
SETCOLOR(MT_COLOR_PROMPT);
addnstr(msg, trunc_msg_len);
addstr(answer_string);
NORMAL_COLOR;
mutt_window_clrtoeol(MuttMessageWindow);
}
mutt_refresh();
/* SigWinch is not processed unless timeout is set */
timeout(30 * 1000);
ch = mutt_getch();
timeout(-1);
if (ch.ch == -2)
continue;
if (CI_is_return(ch.ch))
break;
if (ch.ch < 0)
{
def = MUTT_ABORT;
break;
}
answer[0] = ch.ch;
if (reyes_ok ? (regexec(&reyes, answer, 0, 0, 0) == 0) : (tolower(ch.ch) == 'y'))
{
def = MUTT_YES;
break;
}
else if (reno_ok ? (regexec(&reno, answer, 0, 0, 0) == 0) : (tolower(ch.ch) == 'n'))
{
def = MUTT_NO;
break;
}
else
{
BEEP();
}
}
FREE(&answer_string);
if (reyes_ok)
regfree(&reyes);
if (reno_ok)
regfree(&reno);
if (MuttMessageWindow->rows != 1)
{
reflow_message_window_rows(1);
mutt_current_menu_redraw();
}
else
mutt_window_clearline(MuttMessageWindow, 0);
if (def != MUTT_ABORT)
{
addstr((char *) (def == MUTT_YES ? yes : no));
mutt_refresh();
}
else
{
/* when the users cancels with ^G, clear the message stored with
* mutt_message() so it isn't displayed when the screen is refreshed. */
mutt_clear_error();
}
return def;
}
/* this function is called when the user presses the abort key */
void mutt_query_exit(void)
{
mutt_flushinp();
curs_set(1);
if (Timeout)
timeout(-1); /* restore blocking operation */
if (mutt_yesorno(_("Exit Mutt?"), MUTT_YES) == MUTT_YES)
{
endwin();
exit(1);
}
mutt_clear_error();
mutt_curs_set(-1);
SigInt = 0;
}
static void curses_message(int error, const char *fmt, va_list ap)
{
char scratch[LONG_STRING];
vsnprintf(scratch, sizeof(scratch), fmt, ap);
mutt_debug(1, "%s\n", scratch);
mutt_format_string(Errorbuf, sizeof(Errorbuf), 0, MuttMessageWindow->cols,
FMT_LEFT, 0, scratch, sizeof(scratch), 0);
if (!option(OPTKEEPQUIET))
{
if (error)
BEEP();
SETCOLOR(error ? MT_COLOR_ERROR : MT_COLOR_MESSAGE);
mutt_window_mvaddstr(MuttMessageWindow, 0, 0, Errorbuf);
NORMAL_COLOR;
mutt_window_clrtoeol(MuttMessageWindow);
mutt_refresh();
}
if (error)
set_option(OPTMSGERR);
else
unset_option(OPTMSGERR);
}
void mutt_curses_error(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
curses_message(1, fmt, ap);
va_end(ap);
}
void mutt_curses_message(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
curses_message(0, fmt, ap);
va_end(ap);
}
void mutt_progress_init(struct Progress *progress, const char *msg,
unsigned short flags, unsigned short inc, long size)
{
struct timeval tv = { 0, 0 };
if (!progress)
return;
if (option(OPTNOCURSES))
return;
memset(progress, 0, sizeof(struct Progress));
progress->inc = inc;
progress->flags = flags;
progress->msg = msg;
progress->size = size;
if (progress->size)
{
if (progress->flags & MUTT_PROGRESS_SIZE)
mutt_pretty_size(progress->sizestr, sizeof(progress->sizestr), progress->size);
else
snprintf(progress->sizestr, sizeof(progress->sizestr), "%ld", progress->size);
}
if (!inc)
{
if (size)
mutt_message("%s (%s)", msg, progress->sizestr);
else
mutt_message(msg);
return;
}
if (gettimeofday(&tv, NULL) < 0)
mutt_debug(1, "gettimeofday failed: %d\n", errno);
/* if timestamp is 0 no time-based suppression is done */
if (TimeInc)
progress->timestamp =
((unsigned int) tv.tv_sec * 1000) + (unsigned int) (tv.tv_usec / 1000);
mutt_progress_update(progress, 0, 0);
}
/**
* message_bar - Draw a colourful progress bar
* @percent: %age complete
* @fmt: printf(1)-like formatting string
* @...: Arguments to formatting string
*/
static void message_bar(int percent, const char *fmt, ...)
{
va_list ap;
char buf[STRING], buf2[STRING];
int w = percent * COLS / 100;
size_t l;
va_start(ap, fmt);
vsnprintf(buf, sizeof(buf), fmt, ap);
l = mutt_strwidth(buf);
va_end(ap);
mutt_format_string(buf2, sizeof(buf2), 0, COLS - 2, FMT_LEFT, 0, buf, sizeof(buf), 0);
move(LINES - 1, 0);
if (ColorDefs[MT_COLOR_PROGRESS] == 0)
{
addstr(buf2);
}
else
{
if (l < w)
{
/* The string fits within the colour bar */
SETCOLOR(MT_COLOR_PROGRESS);
addstr(buf2);
w -= l;
while (w--)
{
addch(' ');
}
SETCOLOR(MT_COLOR_NORMAL);
}
else
{
/* The string is too long for the colour bar */
char ch;
int off = mutt_wstr_trunc(buf2, sizeof(buf2), w, NULL);
ch = buf2[off];
buf2[off] = 0;
SETCOLOR(MT_COLOR_PROGRESS);
addstr(buf2);
buf2[off] = ch;
SETCOLOR(MT_COLOR_NORMAL);
addstr(&buf2[off]);
}
}
clrtoeol();
mutt_refresh();
}
void mutt_progress_update(struct Progress *progress, long pos, int percent)
{
char posstr[SHORT_STRING];
short update = 0;
struct timeval tv = { 0, 0 };
unsigned int now = 0;
if (option(OPTNOCURSES))
return;
if (!progress->inc)
goto out;
/* refresh if size > inc */
if (progress->flags & MUTT_PROGRESS_SIZE && (pos >= progress->pos + (progress->inc << 10)))
update = 1;
else if (pos >= progress->pos + progress->inc)
update = 1;
/* skip refresh if not enough time has passed */
if (update && progress->timestamp && !gettimeofday(&tv, NULL))
{
now = ((unsigned int) tv.tv_sec * 1000) + (unsigned int) (tv.tv_usec / 1000);
if (now && now - progress->timestamp < TimeInc)
update = 0;
}
/* always show the first update */
if (!pos)
update = 1;
if (update)
{
if (progress->flags & MUTT_PROGRESS_SIZE)
{
pos = pos / (progress->inc << 10) * (progress->inc << 10);
mutt_pretty_size(posstr, sizeof(posstr), pos);
}
else
snprintf(posstr, sizeof(posstr), "%ld", pos);
mutt_debug(5, "updating progress: %s\n", posstr);
progress->pos = pos;
if (now)
progress->timestamp = now;
if (progress->size > 0)
{
message_bar((percent > 0) ? percent : (int) (100.0 * (double) progress->pos /
progress->size),
"%s %s/%s (%d%%)", progress->msg, posstr, progress->sizestr,
(percent > 0) ? percent : (int) (100.0 * (double) progress->pos /
progress->size));
}
else
{
if (percent > 0)
message_bar(percent, "%s %s (%d%%)", progress->msg, posstr, percent);
else
mutt_message("%s %s", progress->msg, posstr);
}
}
out:
if (pos >= progress->size)
mutt_clear_error();
}
void mutt_init_windows(void)
{
MuttHelpWindow = safe_calloc(sizeof(struct MuttWindow), 1);
MuttIndexWindow = safe_calloc(sizeof(struct MuttWindow), 1);
MuttStatusWindow = safe_calloc(sizeof(struct MuttWindow), 1);
MuttMessageWindow = safe_calloc(sizeof(struct MuttWindow), 1);
#ifdef USE_SIDEBAR
MuttSidebarWindow = safe_calloc(sizeof(struct MuttWindow), 1);
#endif
}
void mutt_free_windows(void)
{
FREE(&MuttHelpWindow);
FREE(&MuttIndexWindow);
FREE(&MuttStatusWindow);
FREE(&MuttMessageWindow);
#ifdef USE_SIDEBAR
FREE(&MuttSidebarWindow);
#endif
}
void mutt_reflow_windows(void)
{
if (option(OPTNOCURSES))
return;
mutt_debug(2, "In mutt_reflow_windows\n");
MuttStatusWindow->rows = 1;
MuttStatusWindow->cols = COLS;
MuttStatusWindow->row_offset = option(OPTSTATUSONTOP) ? 0 : LINES - 2;
MuttStatusWindow->col_offset = 0;
memcpy(MuttHelpWindow, MuttStatusWindow, sizeof(struct MuttWindow));
if (!option(OPTHELP))
MuttHelpWindow->rows = 0;
else
MuttHelpWindow->row_offset = option(OPTSTATUSONTOP) ? LINES - 2 : 0;
memcpy(MuttMessageWindow, MuttStatusWindow, sizeof(struct MuttWindow));
MuttMessageWindow->row_offset = LINES - 1;
memcpy(MuttIndexWindow, MuttStatusWindow, sizeof(struct MuttWindow));
MuttIndexWindow->rows = MAX(
LINES - MuttStatusWindow->rows - MuttHelpWindow->rows - MuttMessageWindow->rows, 0);
MuttIndexWindow->row_offset =
option(OPTSTATUSONTOP) ? MuttStatusWindow->rows : MuttHelpWindow->rows;
#ifdef USE_SIDEBAR
if (option(OPTSIDEBAR))
{
memcpy(MuttSidebarWindow, MuttIndexWindow, sizeof(struct MuttWindow));
MuttSidebarWindow->cols = SidebarWidth;
MuttIndexWindow->cols -= SidebarWidth;
if (option(OPTSIDEBARONRIGHT))
{
MuttSidebarWindow->col_offset = COLS - SidebarWidth;
}
else
{
MuttIndexWindow->col_offset += SidebarWidth;
}
}
#endif
mutt_set_current_menu_redraw_full();
/* the pager menu needs this flag set to recalc lineInfo */
mutt_set_current_menu_redraw(REDRAW_FLOW);
}
static void reflow_message_window_rows(int mw_rows)
{
MuttMessageWindow->rows = mw_rows;
MuttMessageWindow->row_offset = LINES - mw_rows;
MuttStatusWindow->row_offset = option(OPTSTATUSONTOP) ? 0 : LINES - mw_rows - 1;
if (option(OPTHELP))
MuttHelpWindow->row_offset = option(OPTSTATUSONTOP) ? LINES - mw_rows - 1 : 0;
MuttIndexWindow->rows = MAX(
LINES - MuttStatusWindow->rows - MuttHelpWindow->rows - MuttMessageWindow->rows, 0);
#ifdef USE_SIDEBAR
if (option(OPTSIDEBAR))
MuttSidebarWindow->rows = MuttIndexWindow->rows;
#endif
/* We don't also set REDRAW_FLOW because this function only
* changes rows and is a temporary adjustment. */
mutt_set_current_menu_redraw_full();
}
int mutt_window_move(struct MuttWindow *win, int row, int col)
{
return move(win->row_offset + row, win->col_offset + col);
}
int mutt_window_mvaddch(struct MuttWindow *win, int row, int col, const chtype ch)
{
return mvaddch(win->row_offset + row, win->col_offset + col, ch);
}
int mutt_window_mvaddstr(struct MuttWindow *win, int row, int col, const char *str)
{
return mvaddstr(win->row_offset + row, win->col_offset + col, str);
}
#ifdef USE_SLANG_CURSES
static int vw_printw(SLcurses_Window_Type *win, const char *fmt, va_list ap)
{
char buf[LONG_STRING];
(void) SLvsnprintf(buf, sizeof(buf), (char *) fmt, ap);
SLcurses_waddnstr(win, buf, -1);
return 0;
}
#endif
int mutt_window_mvprintw(struct MuttWindow *win, int row, int col, const char *fmt, ...)
{
va_list ap;
int rv;
if ((rv = mutt_window_move(win, row, col) != ERR))
{
va_start(ap, fmt);
rv = vw_printw(stdscr, fmt, ap);
va_end(ap);
}
return rv;
}
/* Assumes the cursor has already been positioned within the
* window.
*/
void mutt_window_clrtoeol(struct MuttWindow *win)
{
int row, col, curcol;
if (win->col_offset + win->cols == COLS)
clrtoeol();
else
{
getyx(stdscr, row, col);
curcol = col;
while (curcol < win->col_offset + win->cols)
{
addch(' ');
curcol++;
}
move(row, col);
}
}
void mutt_window_clearline(struct MuttWindow *win, int row)
{
mutt_window_move(win, row, 0);
mutt_window_clrtoeol(win);
}
/* Assumes the current position is inside the window.
* Otherwise it will happily return negative or values outside
* the window boundaries
*/
void mutt_window_getyx(struct MuttWindow *win, int *y, int *x)
{
int row, col;
getyx(stdscr, row, col);
if (y)
*y = row - win->row_offset;
if (x)
*x = col - win->col_offset;
}
void mutt_show_error(void)
{
if (option(OPTKEEPQUIET))
return;
SETCOLOR(option(OPTMSGERR) ? MT_COLOR_ERROR : MT_COLOR_MESSAGE);
mutt_window_mvaddstr(MuttMessageWindow, 0, 0, Errorbuf);
NORMAL_COLOR;
mutt_window_clrtoeol(MuttMessageWindow);
}
void mutt_endwin(const char *msg)
{
int e = errno;
if (!option(OPTNOCURSES))
{
/* at least in some situations (screen + xterm under SuSE11/12) endwin()
* doesn't properly flush the screen without an explicit call.
*/
mutt_refresh();
endwin();
}
if (msg && *msg)
{
puts(msg);
fflush(stdout);
}
errno = e;
}
void mutt_perror(const char *s)
{
char *p = strerror(errno);
mutt_debug(1, "%s: %s (errno = %d)\n", s, p ? p : "unknown error", errno);
mutt_error("%s: %s (errno = %d)", s, p ? p : _("unknown error"), errno);
}
int mutt_any_key_to_continue(const char *s)
{
struct termios t;
struct termios old;
int f, ch;
f = open("/dev/tty", O_RDONLY);
if (f < 0)
return EOF;
tcgetattr(f, &t);
memcpy((void *) &old, (void *) &t, sizeof(struct termios)); /* save original state */
t.c_lflag &= ~(ICANON | ECHO);
t.c_cc[VMIN] = 1;
t.c_cc[VTIME] = 0;
tcsetattr(f, TCSADRAIN, &t);
fflush(stdout);
if (s)
fputs(s, stdout);
else
fputs(_("Press any key to continue..."), stdout);
fflush(stdout);
ch = fgetc(stdin);
fflush(stdin);
tcsetattr(f, TCSADRAIN, &old);
close(f);
fputs("\r\n", stdout);
mutt_clear_error();
return (ch >= 0) ? ch : EOF;
}
int mutt_do_pager(const char *banner, const char *tempfile, int do_color, pager_t *info)
{
int rc;
if (!Pager || (mutt_strcmp(Pager, "builtin") == 0))
rc = mutt_pager(banner, tempfile, do_color, info);
else
{
char cmd[STRING];
mutt_endwin(NULL);
mutt_expand_file_fmt(cmd, sizeof(cmd), Pager, tempfile);
if (mutt_system(cmd) == -1)
{
mutt_error(_("Error running \"%s\"!"), cmd);
rc = -1;
}
else
rc = 0;
mutt_unlink(tempfile);
}
return rc;
}
int _mutt_enter_fname(const char *prompt, char *buf, size_t blen, int buffy,
int multiple, char ***files, int *numfiles, int flags)
{
struct Event ch;
SETCOLOR(MT_COLOR_PROMPT);
mutt_window_mvaddstr(MuttMessageWindow, 0, 0, (char *) prompt);
addstr(_(" ('?' for list): "));
NORMAL_COLOR;
if (buf[0])
addstr(buf);
mutt_window_clrtoeol(MuttMessageWindow);
mutt_refresh();
ch = mutt_getch();
if (ch.ch < 0)
{
mutt_window_clearline(MuttMessageWindow, 0);
return -1;
}
else if (ch.ch == '?')
{
mutt_refresh();
buf[0] = 0;
if (!flags)
flags = MUTT_SEL_FOLDER | (multiple ? MUTT_SEL_MULTI : 0);
_mutt_select_file(buf, blen, flags, files, numfiles);
}
else
{
char *pc = safe_malloc(mutt_strlen(prompt) + 3);
sprintf(pc, "%s: ", prompt);
mutt_unget_event(ch.op ? 0 : ch.ch, ch.op ? ch.op : 0);
if (_mutt_get_field(pc, buf, blen, (buffy ? MUTT_EFILE : MUTT_FILE) | MUTT_CLEAR,
multiple, files, numfiles) != 0)
buf[0] = 0;
FREE(&pc);
#ifdef USE_NOTMUCH
if ((flags & MUTT_SEL_VFOLDER) && buf[0] && (strncmp(buf, "notmuch://", 10) != 0))
nm_description_to_path(buf, buf, blen);
#endif
}
return 0;
}
void mutt_unget_event(int ch, int op)
{
struct Event tmp;
tmp.ch = ch;
tmp.op = op;
if (UngetCount >= UngetLen)
safe_realloc(&UngetKeyEvents, (UngetLen += 16) * sizeof(struct Event));
UngetKeyEvents[UngetCount++] = tmp;
}
void mutt_unget_string(char *s)
{
char *p = s + mutt_strlen(s) - 1;
while (p >= s)
{
mutt_unget_event((unsigned char) *p--, 0);
}
}
/*
* Adds the ch/op to the macro buffer.
* This should be used for macros, push, and exec commands only.
*/
void mutt_push_macro_event(int ch, int op)
{
struct Event tmp;
tmp.ch = ch;
tmp.op = op;
if (MacroBufferCount >= MacroBufferLen)
safe_realloc(&MacroEvents, (MacroBufferLen += 128) * sizeof(struct Event));
MacroEvents[MacroBufferCount++] = tmp;
}
void mutt_flush_macro_to_endcond(void)
{
UngetCount = 0;
while (MacroBufferCount > 0)
{
if (MacroEvents[--MacroBufferCount].op == OP_END_COND)
return;
}
}
/* Normally, OP_END_COND should only be in the MacroEvent buffer.
* km_error_key() (ab)uses OP_END_COND as a barrier in the unget
* buffer, and calls this function to flush. */
void mutt_flush_unget_to_endcond(void)
{
while (UngetCount > 0)
{
if (UngetKeyEvents[--UngetCount].op == OP_END_COND)
return;
}
}
void mutt_flushinp(void)
{
UngetCount = 0;
MacroBufferCount = 0;
flushinp();
}
#if (defined(USE_SLANG_CURSES) || defined(HAVE_CURS_SET))
/* The argument can take 3 values:
* -1: restore the value of the last call
* 0: make the cursor invisible
* 1: make the cursor visible
*/
void mutt_curs_set(int cursor)
{
static int SavedCursor = 1;
if (cursor < 0)
cursor = SavedCursor;
else
SavedCursor = cursor;
if (curs_set(cursor) == ERR)
{
if (cursor == 1) /* cnorm */
curs_set(2); /* cvvis */