/* $calcurse: notify.c,v 1.36 2009/01/22 18:11:57 culot Exp $ */
/*
* Calcurse - text-based organizer
* Copyright (c) 2004-2009 Frederic Culot
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Send your feedback or comments to : calcurse@culot.org
* Calcurse home page : http://culot.org/calcurse
*
*/
#include <time.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif /* HAVE_CONFIG_H */
#include "i18n.h"
#include "utils.h"
#include "custom.h"
#include "keys.h"
#include "mem.h"
#include "notify.h"
static struct notify_vars_s notify;
static struct notify_app_s notify_app;
static pthread_attr_t detached_thread_attr;
static pthread_t notify_t_main;
/* Return 1 if we need to display the notify-bar, else 0. */
int
notify_bar (void)
{
int display_bar = 0;
pthread_mutex_lock (&nbar.mutex);
display_bar = (nbar.show) ? 1 : 0;
pthread_mutex_unlock (&nbar.mutex);
return (display_bar);
}
/* Initialize the nbar variable used to store notification options. */
void
notify_init_vars (void)
{
char *time_format = "%T";
char *date_format = "%a %F";
char *cmd = "printf '\\a'";
pthread_mutex_init (&nbar.mutex, NULL);
nbar.show = 1;
nbar.cntdwn = 300;
(void)strncpy (nbar.datefmt, date_format, strlen (date_format) + 1);
(void)strncpy (nbar.timefmt, time_format, strlen (time_format) + 1);
(void)strncpy (nbar.cmd, cmd, strlen (cmd) + 1);
if ((nbar.shell = getenv ("SHELL")) == NULL)
nbar.shell = "/bin/sh";
(void)pthread_attr_init (&detached_thread_attr);
(void)pthread_attr_setdetachstate (&detached_thread_attr,
PTHREAD_CREATE_DETACHED);
}
/* Extract the appointment file name from the complete file path. */
static void
extract_aptsfile (void)
{
char *file;
file = strrchr (path_apts, '/');
if (!file)
notify.apts_file = path_apts;
else
{
notify.apts_file = file;
notify.apts_file++;
}
}
/*
* Create the notification bar, by initializing all the variables and
* creating the notification window (l is the number of lines, c the
* number of columns, y and x are its coordinates).
*/
void
notify_init_bar (void)
{
pthread_mutex_init (¬ify.mutex, NULL);
pthread_mutex_init (¬ify_app.mutex, NULL);
notify_app.got_app = 0;
notify.win = newwin (win[NOT].h, win[NOT].w, win[NOT].y, win[NOT].x);
extract_aptsfile ();
}
/* Stop the notify-bar main thread. */
void
notify_stop_main_thread (void)
{
if (notify_t_main)
pthread_cancel (notify_t_main);
}
/*
* The calcurse window geometry has changed so we need to reset the
* notification window.
*/
void
notify_reinit_bar (void)
{
delwin (notify.win);
notify.win = newwin (win[NOT].h, win[NOT].w, win[NOT].y, win[NOT].x);
}
/* Launch user defined command as a notification. */
static void
launch_cmd (char *cmd, char *shell)
{
int pid;
pid = fork ();
if (pid < 0)
ERROR_MSG (_("error while launching command: could not fork"));
else if (pid == 0) /* Child: launch user defined command */
if (execlp (shell, shell, "-c", cmd, (char *)0) < 0)
ERROR_MSG (_("error while launching command"));
}
/*
* Update the notification bar. This is useful when changing color theme
* for example.
*/
void
notify_update_bar (void)
{
const int space = 3;
int file_pos, date_pos, app_pos, txt_max_len, too_long = 0;
int time_left, hours_left, minutes_left;
int blinking;
char buf[BUFSIZ];
date_pos = space;
pthread_mutex_lock (¬ify.mutex);
file_pos = strlen (notify.date) + strlen (notify.time) + 7 + 2 * space;
app_pos = file_pos + strlen (notify.apts_file) + 2 + space;
txt_max_len = col - (app_pos + 12 + space);
custom_apply_attr (notify.win, ATTR_HIGHEST);
wattron (notify.win, A_UNDERLINE | A_REVERSE);
mvwhline (notify.win, 0, 0, ACS_HLINE, col);
mvwprintw (notify.win, 0, date_pos, "[ %s | %s ]",
notify.date, notify.time);
mvwprintw (notify.win, 0, file_pos, "(%s)", notify.apts_file);
pthread_mutex_lock (¬ify_app.mutex);
if (notify_app.got_app)
{
if (strlen (notify_app.txt) > txt_max_len)
{
too_long = 1;
(void)strncpy (buf, notify_app.txt, txt_max_len - 3);
buf[txt_max_len - 3] = '\0';
}
time_left = notify_app.time - notify.time_in_sec;
if (time_left > 0)
{
hours_left = (time_left / HOURINSEC);
minutes_left = (time_left - hours_left * HOURINSEC) / MININSEC;
pthread_mutex_lock (&nbar.mutex);
if (time_left < nbar.cntdwn && (notify_app.state & APOINT_NOTIFY))
blinking = 1;
else
blinking = 0;
if (blinking)
wattron (notify.win, A_BLINK);
if (too_long)
mvwprintw (notify.win, 0, app_pos, "> %02d:%02d :: %s.. <",
hours_left, minutes_left, buf);
else
mvwprintw (notify.win, 0, app_pos, "> %02d:%02d :: %s <",
hours_left, minutes_left, notify_app.txt);
if (blinking)
wattroff (notify.win, A_BLINK);
if (blinking && !(notify_app.state & APOINT_NOTIFIED))
{
notify_app.state |= APOINT_NOTIFIED;
launch_cmd (nbar.cmd, nbar.shell);
}
pthread_mutex_unlock (&nbar.mutex);
}
else
{
notify_app.got_app = 0;
pthread_mutex_unlock (¬ify_app.mutex);
pthread_mutex_unlock (¬ify.mutex);
notify_check_next_app ();
return;
}
}
pthread_mutex_unlock (¬ify_app.mutex);
wattroff (notify.win, A_UNDERLINE | A_REVERSE);
custom_remove_attr (notify.win, ATTR_HIGHEST);
wrefresh (notify.win);
pthread_mutex_unlock (¬ify.mutex);
}
/* Update the notication bar content */
/* ARGSUSED0 */
static void *
notify_main_thread (void *arg)
{
const unsigned thread_sleep = 1;
const unsigned check_app = MININSEC;
int elapse = 0, got_app = 0;
struct tm *ntime;
time_t ntimer;
elapse = 0;
got_app = 0;
for (;;)
{
ntimer = time (NULL);
ntime = localtime (&ntimer);
pthread_mutex_lock (¬ify.mutex);
notify.time_in_sec = ntimer;
pthread_mutex_lock (&nbar.mutex);
strftime (notify.time, NOTIFY_FIELD_LENGTH, nbar.timefmt, ntime);
strftime (notify.date, NOTIFY_FIELD_LENGTH, nbar.datefmt, ntime);
pthread_mutex_unlock (&nbar.mutex);
pthread_mutex_unlock (¬ify.mutex);
notify_update_bar ();
(void)sleep (thread_sleep);
elapse += thread_sleep;
if (elapse >= check_app)
{
elapse = 0;
pthread_mutex_lock (¬ify_app.mutex);
got_app = notify_app.got_app;
pthread_mutex_unlock (¬ify_app.mutex);
if (!got_app)
notify_check_next_app ();
}
}
pthread_exit ((void *) 0);
}
/* Look for the next appointment within the next 24 hours. */
/* ARGSUSED0 */
static void *
notify_thread_app (void *arg)
{
struct notify_app_s tmp_app;
time_t current_time;
current_time = time (NULL);
/* Use a temporary structure not to lock the mutex for a too
* long time while looking for next appointment. */
tmp_app.time = current_time + DAYINSEC;
tmp_app.got_app = 0;
tmp_app.txt = NULL;
tmp_app = *recur_apoint_check_next (&tmp_app, current_time, get_today ());
tmp_app = *apoint_check_next (&tmp_app, current_time);
pthread_mutex_lock (¬ify_app.mutex);
if (tmp_app.got_app)
{
notify_app.got_app = 1;
notify_app.time = tmp_app.time;
notify_app.txt = mem_strdup (tmp_app.txt);
notify_app.state = tmp_app.state;
}
else
{
notify_app.got_app = 0;
}
pthread_mutex_unlock (¬ify_app.mutex);
if (tmp_app.txt != NULL)
mem_free (tmp_app.txt);
notify_update_bar ();
pthread_exit ((void *) 0);
}
/* Launch the thread notify_thread_app to look for next appointment. */
void
notify_check_next_app (void)
{
pthread_t notify_t_app;
pthread_create (¬ify_t_app, &detached_thread_attr, notify_thread_app,
(void *)0);
return;
}
/* Check if the newly created appointment is to be notified. */
void
notify_check_added (char *mesg, long start, char state)
{
time_t current_time;
int update_notify = 0;
long gap;
current_time = time (NULL);
pthread_mutex_lock (¬ify_app.mutex);
if (!notify_app.got_app)
{
gap = start - current_time;
if (gap >= 0 && gap <= DAYINSEC)
update_notify = 1;
}
else if (start < notify_app.time && start >= current_time)
{
update_notify = 1;
}
else if (start == notify_app.time && state != notify_app.state)
update_notify = 1;
if (update_notify)
{
notify_app.got_app = 1;
notify_app.time = start;
notify_app.txt = mem_strdup (mesg);
notify_app.state = state;
}
pthread_mutex_unlock (¬ify_app.mutex);
notify_update_bar ();
}
/* Check if the newly repeated appointment is to be notified. */
void
notify_check_repeated (recur_apoint_llist_node_t *i)
{
long real_app_time;
int update_notify = 0;
time_t current_time;
current_time = time (NULL);
pthread_mutex_lock (¬ify_app.mutex);
if ((real_app_time = recur_item_inday (i->start, i->exc, i->rpt->type,
i->rpt->freq, i->rpt->until,
get_today ()) > current_time))
{
if (!notify_app.got_app)
{
if (real_app_time - current_time <= DAYINSEC)
update_notify = 1;
}
else if (real_app_time < notify_app.time &&
real_app_time >= current_time)
{
update_notify = 1;
}
else if (real_app_time == notify_app.time &&
i->state != notify_app.state)
update_notify = 1;
}
if (update_notify)
{
notify_app.got_app = 1;
notify_app.time = real_app_time;
notify_app.txt = mem_strdup (i->mesg);
notify_app.state = i->state;
}
pthread_mutex_unlock (¬ify_app.mutex);
notify_update_bar ();
}
int
notify_same_item (long time)
{
int same = 0;
pthread_mutex_lock (&(notify_app.mutex));
if (notify_app.got_app && notify_app.time == time)
same = 1;
pthread_mutex_unlock (&(notify_app.mutex));
return same;
}
int
notify_same_recur_item (recur_apoint_llist_node_t *i)
{
int same = 0;
long item_start = 0;
item_start = recur_item_inday (i->start, i->exc, i->rpt->type,
i->rpt->freq, i->rpt->until, get_today ());
pthread_mutex_lock (¬ify_app.mutex);
if (notify_app.got_app && item_start == notify_app.time)
same = 1;
pthread_mutex_unlock (&(notify_app.mutex));
return same;
}
/* Launch the notify-bar main thread. */
void
notify_start_main_thread (void)
{
pthread_create (¬ify_t_main, NULL, notify_main_thread, NULL);
notify_check_next_app ();
}
/* Print options related to the notify-bar. */
static void
notify_print_options (WINDOW *optwin, int col)
{
enum
{ SHOW, DATE, CLOCK, WARN, CMD, NB_OPT };
struct opt_s
{
char name[BUFSIZ];
char desc[BUFSIZ];
char value[BUFSIZ];
}
opt[NB_OPT];
int i, y, x, l, x_pos, y_pos, x_offset, y_offset, maxcol, maxlen;
char buf[BUFSIZ];
x_pos = 3;
x_offset = 4;
y_pos = 4;
y_offset = 3;
maxcol = col - 2;
(void)strncpy (opt[SHOW].name, _("notify-bar_show = "), BUFSIZ);
(void)strncpy (opt[DATE].name, _("notify-bar_date = "), BUFSIZ);
(void)strncpy (opt[CLOCK].name, _("notify-bar_clock = "), BUFSIZ);
(void)strncpy (opt[WARN].name, _("notify-bar_warning = "), BUFSIZ);
(void)strncpy (opt[CMD].name, _("notify-bar_command = "), BUFSIZ);
(void)strncpy (opt[SHOW].desc,
_("(if set to YES, notify-bar will be displayed)"), BUFSIZ);
(void)strncpy (opt[DATE].desc,
_("(Format of the date to be displayed inside notify-bar)"),
BUFSIZ);
(void)strncpy (opt[CLOCK].desc,
_("(Format of the time to be displayed inside notify-bar)"),
BUFSIZ);
(void)strncpy (opt[WARN].desc,
_("(Warn user if an appointment is within next "
"'notify-bar_warning' seconds)"), BUFSIZ);
(void)strncpy (opt[CMD].desc,
_("(Command used to notify user of an upcoming appointment)"),
BUFSIZ);
pthread_mutex_lock (&nbar.mutex);
(void)strncpy (opt[DATE].value, nbar.datefmt, BUFSIZ);
(void)strncpy (opt[CLOCK].value, nbar.timefmt, BUFSIZ);
(void)snprintf (opt[WARN].value, BUFSIZ, "%d", nbar.cntdwn);
(void)strncpy (opt[CMD].value, nbar.cmd, BUFSIZ);
l = strlen (opt[SHOW].name);
x = x_pos + x_offset + l;
mvwprintw (optwin, y_pos, x_pos, "[1] %s", opt[SHOW].name);
erase_window_part (optwin, x, y_pos, maxcol, y_pos);
print_bool_option_incolor (optwin, nbar.show, y_pos, x);
mvwprintw (optwin, y_pos + 1, x_pos, opt[SHOW].desc);
for (i = 1; i < NB_OPT; i++)
{
l = strlen (opt[i].name);
y = y_pos + i * y_offset;
x = x_pos + x_offset + l;
maxlen = maxcol - x - 2;
mvwprintw (optwin, y, x_pos, "[%d] %s", i + 1, opt[i].name);
erase_window_part (optwin, x, y, maxcol, y);
custom_apply_attr (optwin, ATTR_HIGHEST);
if (strlen (opt[i].value) < maxlen)
mvwprintw (optwin, y, x, "%s", opt[i].value);
else
{
(void)strncpy (buf, opt[i].value, maxlen - 1);
buf[maxlen - 1] = '\0';
mvwprintw (optwin, y, x, "%s...", buf);
}
custom_remove_attr (optwin, ATTR_HIGHEST);
mvwprintw (optwin, y + 1, x_pos, opt[i].desc);
}
pthread_mutex_unlock (&nbar.mutex);
wmove (win[STA].p, 1, 0);
wnoutrefresh (optwin);
doupdate ();
}
/* Notify-bar configuration. */
void
notify_config_bar (void)
{
window_t conf_win;
char label[BUFSIZ];
char *buf;
char *number_str =
_("Enter an option number to change its value [Q to quit] ");
char *date_str =
_("Enter the date format (see 'man 3 strftime' for possible formats) ");
char *time_str =
_("Enter the time format (see 'man 3 strftime' for possible formats) ");
char *count_str =
_("Enter the number of seconds (0 not to be warned before an appointment)");
char *cmd_str = _("Enter the notification command ");
int ch = 0, change_win = 1;
buf = mem_malloc (BUFSIZ);
(void)snprintf (label, BUFSIZ, _("CalCurse %s | notify-bar options"),
VERSION);
conf_win.p = 0;
custom_confwin_init (&conf_win, label);
while (ch != 'q')
{
if (change_win)
custom_confwin_init (&conf_win, label);
status_mesg (number_str, "");
notify_print_options (conf_win.p, col);
*buf = '\0';
ch = wgetch (win[STA].p);
switch (ch)
{
case KEY_RESIZE:
endwin ();
refresh ();
curs_set (0);
delwin (conf_win.p);
custom_confwin_init (&conf_win, label);
break;
case '1':
pthread_mutex_lock (&nbar.mutex);
nbar.show = !nbar.show;
pthread_mutex_unlock (&nbar.mutex);
if (notify_bar ())
notify_start_main_thread ();
else
notify_stop_main_thread ();
change_win = 1;
break;
case '2':
status_mesg (date_str, "");
pthread_mutex_lock (&nbar.mutex);
(void)strncpy (buf, nbar.datefmt, strlen (nbar.datefmt) + 1);
pthread_mutex_unlock (&nbar.mutex);
if (updatestring (win[STA].p, &buf, 0, 1) == 0)
{
pthread_mutex_lock (&nbar.mutex);
(void)strncpy (nbar.datefmt, buf, strlen (buf) + 1);
pthread_mutex_unlock (&nbar.mutex);
}
change_win = 0;
break;
case '3':
status_mesg (time_str, "");
pthread_mutex_lock (&nbar.mutex);
(void)strncpy (buf, nbar.timefmt, strlen (nbar.timefmt) + 1);
pthread_mutex_unlock (&nbar.mutex);
if (updatestring (win[STA].p, &buf, 0, 1) == 0)
{
pthread_mutex_lock (&nbar.mutex);
(void)strncpy (nbar.timefmt, buf, strlen (buf) + 1);
pthread_mutex_unlock (&nbar.mutex);
}
change_win = 0;
break;
case '4':
status_mesg (count_str, "");
pthread_mutex_lock (&nbar.mutex);
printf (buf, "%d", nbar.cntdwn);
pthread_mutex_unlock (&nbar.mutex);
if (updatestring (win[STA].p, &buf, 0, 1) == 0 &&
is_all_digit (buf) && atoi (buf) >= 0 && atoi (buf) <= DAYINSEC)
{
pthread_mutex_lock (&nbar.mutex);
nbar.cntdwn = atoi (buf);
pthread_mutex_unlock (&nbar.mutex);
}
change_win = 0;
break;
case '5':
status_mesg (cmd_str, "");
pthread_mutex_lock (&nbar.mutex);
(void)strncpy (buf, nbar.cmd, strlen (nbar.cmd) + 1);
pthread_mutex_unlock (&nbar.mutex);
if (updatestring (win[STA].p, &buf, 0, 1) == 0)
{
pthread_mutex_lock (&nbar.mutex);
(void)strncpy (nbar.cmd, buf, strlen (buf) + 1);
pthread_mutex_unlock (&nbar.mutex);
}
change_win = 0;
break;
}
}
mem_free (buf);
delwin (conf_win.p);
}