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/* main.c -- Entry point for sawfish
$Id$
Copyright (C) 1999 John Harper <john@dcs.warwick.ac.uk>
This file is part of sawfish.
sawfish 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, or (at your option)
any later version.
sawfish 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 sawfish; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
/* AIX requires this to be the first thing in the file. */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifndef __GNUC__
# if HAVE_ALLOCA_H
# include <alloca.h>
# else
# ifdef _AIX
#pragma alloca
# else
# ifndef alloca /* predefined by HP cc +Olibcalls */
char *alloca ();
# endif
# endif
# endif
#endif
#include "sawfish.h"
#include "build.h"
#include <string.h>
#include <limits.h>
#include <unistd.h>
#include <X11/Xlocale.h> /* for setlocale () */
#ifdef HAVE_GDK_PIXBUF
#include <glib-object.h>
#endif
/* one of the ec_ values */
int exit_code = ec_no_exit;
DEFSYM(sawfish_directory, "sawfish-directory");
DEFSYM(sawfish_lisp_lib_directory, "sawfish-lisp-lib-directory");
DEFSYM(sawfish_site_lisp_directory, "sawfish-site-lisp-directory");
DEFSYM(sawfish_exec_directory, "sawfish-exec-directory");
DEFSYM(sawfish_locale_directory, "sawfish-locale-directory");
DEFSYM(sawfish_version, "sawfish-version"); /*
::doc:sawfish-directory::
The directory in which all of sawfish's installed data files live.
::end::
::doc:sawfish-lisp-lib-directory::
The name of the directory in which the standard lisp files live.
::end::
::doc:sawfish-site-lisp-directory::
The name of the directory in which site-specific Lisp files are stored.
::end::
::doc:sawfish-exec-directory::
The name of the directory containing sawfish's architecture specific files.
::end::
::doc:sawfish-locale-directory::
The name of the directory containing sawfish's message catalog files.
::end::
::doc:sawfish-version::
A string defining the version number of the current sawfish release.
::end:: */
/* some errors */
DEFSYM(window_error, "window-error");
DEFSTRING(err_window_error, "Window error");
DEFSYM(invalid_pos, "invalid-pos");
DEFSTRING(err_invalid_pos, "Invalid position");
DEFSYM(bad_event_desc, "bad-event-desc");
DEFSTRING(err_bad_event_desc, "Invalid event description");
DEFSTRING(version_string, SAWFISH_VERSION);
DEFSYM(saved_command_line_args, "saved-command-line-args");
DEFSYM(fonts_are_fontsets, "fonts-are-fontsets");
DEFSYM(sawfish_wm, "sawfish.wm");
static rep_bool
on_idle (int since_last)
{
if (print_event_prefix ())
return rep_TRUE;
if (since_last == 0 && rep_recurse_depth == 0)
{
/* XXX There have been reports of sawfish locking the display,
XXX I've never seen it, but this may help, and shouldn't hurt.. */
last_event_time = get_server_timestamp ();
ungrab_pointer ();
XUngrabKeyboard (dpy, last_event_time);
XFlush (dpy);
}
return rep_FALSE;
}
static void
on_termination (void)
{
}
DEFUN_INT("quit", Fquit, Squit, (void), rep_Subr0, "") /*
::doc:sawfish.wm.misc#quit::
quit
Terminate the sawfish process.
::end:: */
{
if (exit_code == ec_no_exit)
exit_code = ec_exit;
return Fthrow (Qquit, rep_MAKE_INT(0));
}
DEFUN_INT("restart", Frestart, Srestart, (void), rep_Subr0, "") /*
::doc:sawfish.wm.misc#restart::
restart
Restart the sawfish process.
::end:: */
{
exit_code = ec_restart;
return Fquit ();
}
DEFUN ("exit-type", Fexit_type, Sexit_type, (void), rep_Subr0)
{
DEFSTRING (s_user_quit, "user-quit");
DEFSTRING (s_user_restart, "user-restart");
DEFSTRING (s_session_quit, "session-quit");
switch (exit_code)
{
case ec_exit:
return Fintern (rep_VAL (&s_user_quit), Qnil);
case ec_restart:
return Fintern (rep_VAL (&s_user_restart), Qnil);
case ec_session_died:
return Fintern (rep_VAL (&s_session_quit), Qnil);
default:
return Qnil;
}
}
static void
sawfish_symbols (void)
{
repv tem;
rep_INTERN_SPECIAL(sawfish_directory);
if(getenv("SAWFISHDIR") != 0)
Fset (Qsawfish_directory, rep_string_dup(getenv("SAWFISHDIR")));
else
Fset (Qsawfish_directory, rep_string_dup(SAWFISH_DIR));
rep_INTERN_SPECIAL(sawfish_lisp_lib_directory);
if(getenv("SAWFISHLISPDIR") != 0)
{
Fset (Qsawfish_lisp_lib_directory,
rep_string_dup(getenv("SAWFISHLISPDIR")));
}
else
Fset (Qsawfish_lisp_lib_directory, rep_string_dup(SAWFISH_LISPDIR));
rep_INTERN_SPECIAL(sawfish_site_lisp_directory);
if(getenv("SAWFISHSITELISPDIR") != 0)
{
Fset (Qsawfish_site_lisp_directory,
rep_string_dup(getenv("SAWFISHSITELISPDIR")));
}
else
{
Fset (Qsawfish_site_lisp_directory,
rep_concat2 (rep_STR (Fsymbol_value (Qsawfish_directory, Qt)),
"/site-lisp"));
}
rep_INTERN_SPECIAL(sawfish_exec_directory);
if(getenv("SAWFISHEXECDIR") != 0)
Fset (Qsawfish_exec_directory, rep_string_dup(getenv("SAWFISHEXECDIR")));
else
Fset (Qsawfish_exec_directory, rep_string_dup(SAWFISH_EXECDIR));
rep_INTERN_SPECIAL(sawfish_locale_directory);
Fset (Qsawfish_locale_directory, rep_string_dup(SAWFISH_LOCALEDIR));
if(getenv("SAWFISHDOCFILE") != 0)
Fset (Qdocumentation_file, rep_string_dup(getenv("SAWFISHDOCFILE")));
else
{
Fset (Qdocumentation_file,
rep_concat2 (rep_STR (Fsymbol_value
(Qsawfish_exec_directory, Qt)), "/DOC"));
}
Fset (Qdocumentation_files, Fcons(Fsymbol_value (Qdocumentation_file, Qt),
Fsymbol_value (Qdocumentation_files, Qt)));
Fset (Qload_path, Fcons (Fsymbol_value (Qsawfish_lisp_lib_directory, Qt),
Fcons (Fsymbol_value (Qsawfish_site_lisp_directory, Qt),
Fsymbol_value (Qload_path, Qt))));
Fset (Qdl_load_path, Fcons (Fsymbol_value (Qsawfish_exec_directory, Qt),
Fsymbol_value (Qdl_load_path, Qt)));
rep_INTERN_SPECIAL(sawfish_version);
Fset (Qsawfish_version, rep_VAL(&version_string));
rep_INTERN(window_error); rep_ERROR(window_error);
rep_INTERN(invalid_pos); rep_ERROR(invalid_pos);
rep_INTERN(bad_event_desc); rep_ERROR(bad_event_desc);
rep_INTERN(sawfish_wm);
rep_on_idle_fun = on_idle;
rep_on_termination_fun = on_termination;
/* This should stop us getting trapped in any recursive edits */
Fset (Qerror_mode, Qtop_level);
Fset (Qinterrupt_mode, Qtop_level);
rep_INTERN_SPECIAL(fonts_are_fontsets);
Fset (Qfonts_are_fontsets, Qt);
tem = rep_push_structure ("sawfish.wm.misc");
rep_ADD_SUBR_INT(Squit);
rep_ADD_SUBR_INT(Srestart);
rep_ADD_SUBR(Sexit_type);
rep_pop_structure (tem);
}
static void
stash_argv (int argc, char **argv)
{
repv head, *last;
head = Qnil;
last = &head;
while(argc > 0)
{
*last = Fcons(rep_string_dup(*argv), Qnil);
last = &rep_CDR(*last);
argc--;
argv++;
}
rep_INTERN_SPECIAL(saved_command_line_args);
Fset (Qsaved_command_line_args, head);
}
static void
do_restart (void)
{
repv args = Fsymbol_value (Qsaved_command_line_args, Qt);
if (rep_CONSP(args))
{
repv len = Flength (args);
if (rep_INTP(len))
{
int argc = rep_INT(len), i;
char **argv = alloca (sizeof (char *) * argc + 1);
for (i = 0; i < argc; i++)
{
argv[i] = strdup (rep_STR(rep_CAR(args)));
args = rep_CDR(args);
}
argv[i] = 0;
/* Only call this once we've finished accessing Lisp data. */
rep_kill ();
execvp (*argv, argv);
}
}
exit (10);
}
static repv
inner_main (repv arg)
{
repv res = rep_load_environment (Qnil);
if (res != rep_NULL)
{
/* C modules that have also Lisp code in the filing system. */
static const char *init[] = {
"sawfish.wm.misc",
"sawfish.wm.cursors",
"sawfish.wm",
0
};
const char **ptr;
for (ptr = init; res != rep_NULL && *ptr != 0; ptr++)
{
res = rep_bootstrap_structure (*ptr);
}
}
if (res != rep_NULL && !batch_mode_p ())
{
/* final initialisation.. */
manage_windows ();
/* then jump into the event loop.. */
res = rep_top_level_recursive_edit ();
}
return res;
}
bool
batch_mode_p (void)
{
repv tem = Fsymbol_value (Qbatch_mode, Qt);
return tem != Qnil;
}
int
main(int argc, char **argv)
{
volatile int rc = 5;
char **old_argv;
int old_argc;
char *lang;
char *prog_name;
/* This will fork multiple copies, if necessary */
multihead_init (&argc, &argv);
old_argv = argv;
old_argc = argc;
#ifdef HAVE_GDK_PIXBUF
g_type_init();
#endif
prog_name = *argv++; argc--;
lang = setlocale(LC_ALL, "");
rep_init (prog_name, &argc, &argv, 0, 0);
stash_argv (old_argc, old_argv);
if (rep_get_option ("--version", 0))
{
printf ("sawfish version %s\n", SAWFISH_VERSION);
return 0;
}
if (rep_get_option ("--help", 0))
{
printf ("\
usage: %s [OPTIONS...]\n\
\n\
where OPTIONS are any of:\n\
\n\
--display=DPY Connect to X display DPY\n\
--multihead Fork a copy of sawfish for each screen\n\
--visual=VISUAL Preferred visual type\n\
--depth=DEPTH Preferred color depth\n\
--disable-nls Disable internationalization of messages\n\
\n\
FILE load the Lisp file FILE (from the cwd if possible,\n\
implies --batch mode)\n\
\n\
--batch batch mode: process options and exit\n\
--interp interpreted mode: don't load compiled Lisp files\n\
\n\
--call FUNCTION call the Lisp function FUNCTION\n\
--f FUNCTION\n\
\n\
--load FILE load the file of Lisp forms called FILE\n\
-l FILE\n\
\n\
--version print version details\n\
--no-rc don't load rc or site-init files\n\
--quit, -q terminate the interpreter process\n", prog_name);
return 0;
}
#if defined (DEBUG) && DEBUG == 1
setvbuf (stdout, NULL, _IOLBF, BUFSIZ);
#endif
rep_push_structure ("sawfish.wm");
if (sys_init(prog_name))
{
sawfish_symbols();
if (lang == 0
|| strcmp (lang, "C") == 0
|| strcmp (lang, "POSIX") == 0
|| ! XSupportsLocale ())
{
/* if setlocale fails, or returns an ASCII locale, or X just
doesn't support the lcoale, using fontsets fails to draw
8-bit characters. */
Fset (Qfonts_are_fontsets, Qnil);
}
/* call all init funcs... */
session_init ();
events_init ();
images_init ();
pixmap_cache_init ();
colors_init ();
fonts_init ();
cursors_init ();
frames_init ();
windows_init ();
keys_init ();
functions_init ();
server_init ();
rep_call_with_barrier (inner_main, Qnil, rep_TRUE, 0, 0, 0);
rc = rep_top_level_exit ();
/* call all exit funcs... */
server_kill ();
functions_kill ();
windows_kill ();
frames_kill ();
cursors_kill ();
fonts_kill ();
colors_kill ();
images_kill ();
events_kill ();
session_kill ();
sys_kill();
if (exit_code == ec_restart)
/* This will call rep_kill () itself when ready */
do_restart ();
rep_kill();
}
return rc;
}
void
add_hook (repv sym, repv fun)
{
repv val = Fsymbol_value (sym, Qt);
if (rep_VOIDP(val))
val = Qnil;
val = Fcons (fun, val);
Fset (sym, val);
}
repv
module_symbol_value (repv mod, repv sym)
{
repv value;
repv tem = rep_push_structure_name (mod);
value = Fsymbol_value (sym, Qt);
rep_pop_structure (tem);
return value;
}
/* in rep 0.11 and earlier the gaol was broken, it was possible to read
non-exported special variables; this was fixed in rep 0.12, so we
need to read some symbols from a non-gaolled module */
repv
global_symbol_value (repv sym)
{
return module_symbol_value (Qsawfish_wm, sym);
}
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