WINGs: Add support for syslog messaging
[wmaker-crm.git] / src / main.c
bloba21290e5db76554ae768e0819999a1fd7b98d015
1 /*
2 * Window Maker window manager
4 * Copyright (c) 1997-2003 Alfredo K. Kojima
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License along
17 * with this program; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
21 #include "wconfig.h"
23 #ifdef HAVE_INOTIFY
24 #include <sys/inotify.h>
25 #endif
27 #include <stdio.h>
28 #include <stdlib.h>
29 #include <unistd.h>
30 #include <string.h>
31 #include <sys/stat.h>
32 #include <sys/types.h>
33 #include <fcntl.h>
35 #include <X11/Xlib.h>
36 #include <X11/Xutil.h>
38 /* Xlocale.h and locale.h are the same if X_LOCALE is undefind in wconfig.h,
39 * and if X_LOCALE is defined, X's locale emulating functions will be used.
40 * See Xlocale.h for more information.
42 #include <X11/Xlocale.h>
44 #define MAINFILE
46 #include "WindowMaker.h"
47 #include "window.h"
48 #include "defaults.h"
49 #include "event.h"
50 #include "startup.h"
51 #include "menu.h"
52 #include "keybind.h"
53 #include "xmodifier.h"
54 #include "session.h"
55 #include "shutdown.h"
56 #include "dialog.h"
57 #include "main.h"
58 #include "monitor.h"
60 #include <WINGs/WUtil.h>
62 #ifndef GLOBAL_DEFAULTS_SUBDIR
63 #define GLOBAL_DEFAULTS_SUBDIR "WindowMaker"
64 #endif
66 /****** Global Variables ******/
67 struct wmaker_global_variables w_global;
69 /* general info */
71 Display *dpy;
73 char *ProgName;
75 struct WPreferences wPreferences;
77 WShortKey wKeyBindings[WKBD_LAST];
79 /* notifications */
80 const char WMNManaged[] = "WMNManaged";
81 const char WMNUnmanaged[] = "WMNUnmanaged";
82 const char WMNChangedWorkspace[] = "WMNChangedWorkspace";
83 const char WMNChangedState[] = "WMNChangedState";
84 const char WMNChangedFocus[] = "WMNChangedFocus";
85 const char WMNChangedStacking[] = "WMNChangedStacking";
86 const char WMNChangedName[] = "WMNChangedName";
88 const char WMNWorkspaceCreated[] = "WMNWorkspaceCreated";
89 const char WMNWorkspaceDestroyed[] = "WMNWorkspaceDestroyed";
90 const char WMNWorkspaceChanged[] = "WMNWorkspaceChanged";
91 const char WMNWorkspaceNameChanged[] = "WMNWorkspaceNameChanged";
93 const char WMNResetStacking[] = "WMNResetStacking";
95 /******** End Global Variables *****/
97 static char *DisplayName = NULL;
99 static char **Arguments;
101 static int ArgCount;
103 static Bool multiHead = True;
105 static int *wVisualID = NULL;
106 static int wVisualID_len = 0;
108 static int real_main(int argc, char **argv);
110 int getWVisualID(int screen)
112 if (wVisualID == NULL)
113 return -1;
114 if (screen < 0 || screen >= wVisualID_len)
115 return -1;
117 return wVisualID[screen];
120 static void setWVisualID(int screen, int val)
122 int i;
124 if (screen < 0)
125 return;
127 if (wVisualID == NULL) {
128 /* no array at all, alloc space for screen + 1 entries
129 * and init with default value */
130 wVisualID_len = screen + 1;
131 wVisualID = (int *)malloc(wVisualID_len * sizeof(int));
132 for (i = 0; i < wVisualID_len; i++) {
133 wVisualID[i] = -1;
135 } else if (screen >= wVisualID_len) {
136 /* larger screen number than previously allocated
137 so enlarge array */
138 int oldlen = wVisualID_len;
140 wVisualID_len = screen + 1;
141 wVisualID = (int *)realloc(wVisualID, wVisualID_len * sizeof(int));
142 for (i = oldlen; i < wVisualID_len; i++) {
143 wVisualID[i] = -1;
147 wVisualID[screen] = val;
151 * this function splits a given string at the comma into tokens
152 * and set the wVisualID variable to each parsed number
154 static int initWVisualID(const char *user_str)
156 char *mystr = strdup(user_str);
157 int cur_in_pos = 0;
158 int cur_out_pos = 0;
159 int cur_screen = 0;
160 int error_found = 0;
162 for (;;) {
163 /* check for delimiter */
164 if (user_str[cur_in_pos] == '\0' || user_str[cur_in_pos] == ',') {
165 int v;
167 mystr[cur_out_pos] = '\0';
169 if (sscanf(mystr, "%i", &v) != 1) {
170 error_found = 1;
171 break;
174 setWVisualID(cur_screen, v);
176 cur_screen++;
177 cur_out_pos = 0;
180 /* break in case last char has been consumed */
181 if (user_str[cur_in_pos] == '\0')
182 break;
184 /* if the current char is no delimiter put it into mystr */
185 if (user_str[cur_in_pos] != ',') {
186 mystr[cur_out_pos++] = user_str[cur_in_pos];
188 cur_in_pos++;
191 free(mystr);
193 if (cur_screen == 0||error_found != 0)
194 return 1;
196 return 0;
199 noreturn void Exit(int status)
201 if (dpy)
202 XCloseDisplay(dpy);
204 wutil_shutdown(); /* WUtil clean-up */
206 exit(status);
209 void Restart(char *manager, Bool abortOnFailure)
211 char *prog = NULL;
212 char *argv[MAX_RESTART_ARGS];
213 int i;
215 if (manager && manager[0] != 0) {
216 prog = argv[0] = strtok(manager, " ");
217 for (i = 1; i < MAX_RESTART_ARGS; i++) {
218 argv[i] = strtok(NULL, " ");
219 if (argv[i] == NULL) {
220 break;
224 if (dpy) {
225 XCloseDisplay(dpy);
226 dpy = NULL;
228 if (!prog) {
229 execvp(Arguments[0], Arguments);
230 wfatal(_("failed to restart Window Maker."));
231 } else {
232 execvp(prog, argv);
233 werror(_("could not exec %s"), prog);
235 if (abortOnFailure)
236 exit(7);
239 void SetupEnvironment(WScreen * scr)
241 char *tmp, *ptr;
242 char buf[16];
244 if (multiHead) {
245 int len = strlen(DisplayName) + 64;
246 tmp = wmalloc(len);
247 snprintf(tmp, len, "DISPLAY=%s", XDisplayName(DisplayName));
248 ptr = strchr(strchr(tmp, ':'), '.');
249 if (ptr)
250 *ptr = 0;
251 snprintf(buf, sizeof(buf), ".%i", scr->screen);
252 strcat(tmp, buf);
253 putenv(tmp);
255 tmp = wmalloc(60);
256 snprintf(tmp, 60, "WRASTER_COLOR_RESOLUTION%i=%i", scr->screen,
257 scr->rcontext->attribs->colors_per_channel);
258 putenv(tmp);
261 typedef struct {
262 WScreen *scr;
263 char *command;
264 } _tuple;
266 static void shellCommandHandler(pid_t pid, unsigned int status, void *client_data)
268 _tuple *data = (_tuple *) client_data;
270 /* Parameter not used, but tell the compiler that it is ok */
271 (void) pid;
273 if (status == 127) {
274 char *buffer;
276 buffer = wstrconcat(_("Could not execute command: "), data->command);
278 wMessageDialog(data->scr, _("Error"), buffer, _("OK"), NULL, NULL);
279 wfree(buffer);
280 } else if (status != 127) {
282 printf("%s: %i\n", data->command, status);
286 wfree(data->command);
287 wfree(data);
290 void ExecuteShellCommand(WScreen *scr, const char *command)
292 static char *shell = NULL;
293 pid_t pid;
296 * This have a problem: if the shell is tcsh (not sure about others)
297 * and ~/.tcshrc have /bin/stty erase ^H somewhere on it, the shell
298 * will block and the command will not be executed.
299 if (!shell) {
300 shell = getenv("SHELL");
301 if (!shell)
302 shell = "/bin/sh";
305 shell = "/bin/sh";
307 pid = fork();
309 if (pid == 0) {
311 SetupEnvironment(scr);
313 #ifdef HAVE_SETSID
314 setsid();
315 #endif
316 execl(shell, shell, "-c", command, NULL);
317 werror("could not execute %s -c %s", shell, command);
318 Exit(-1);
319 } else if (pid < 0) {
320 werror("cannot fork a new process");
321 } else {
322 _tuple *data = wmalloc(sizeof(_tuple));
324 data->scr = scr;
325 data->command = wstrdup(command);
327 wAddDeathHandler(pid, shellCommandHandler, data);
332 *---------------------------------------------------------------------
333 * RelaunchWindow--
334 * Launch a new instance of the active window
336 *----------------------------------------------------------------------
338 Bool RelaunchWindow(WWindow *wwin)
340 if (! wwin || ! wwin->client_win) {
341 werror("no window to relaunch");
342 return False;
345 char **argv;
346 int argc;
348 if (! XGetCommand(dpy, wwin->client_win, &argv, &argc) || argc == 0 || argv == NULL) {
349 werror("cannot relaunch the application because no WM_COMMAND property is set");
350 return False;
353 pid_t pid = fork();
355 if (pid == 0) {
356 SetupEnvironment(wwin->screen_ptr);
357 #ifdef HAVE_SETSID
358 setsid();
359 #endif
360 /* argv is not null-terminated */
361 char **a = (char **) malloc(argc + 1);
362 if (! a) {
363 werror("out of memory trying to relaunch the application");
364 Exit(-1);
367 int i;
368 for (i = 0; i < argc; i++)
369 a[i] = argv[i];
370 a[i] = NULL;
372 execvp(a[0], a);
373 Exit(-1);
374 } else if (pid < 0) {
375 werror("cannot fork a new process");
377 XFreeStringList(argv);
378 return False;
379 } else {
380 _tuple *data = wmalloc(sizeof(_tuple));
382 data->scr = wwin->screen_ptr;
383 data->command = wtokenjoin(argv, argc);
385 /* not actually a shell command */
386 wAddDeathHandler(pid, shellCommandHandler, data);
388 XFreeStringList(argv);
391 return True;
395 *---------------------------------------------------------------------
396 * wAbort--
397 * Do a major cleanup and exit the program
399 *----------------------------------------------------------------------
401 noreturn void wAbort(Bool dumpCore)
403 int i;
404 WScreen *scr;
406 for (i = 0; i < w_global.screen_count; i++) {
407 scr = wScreenWithNumber(i);
408 if (scr)
409 RestoreDesktop(scr);
411 printf(_("%s aborted.\n"), ProgName);
412 if (dumpCore)
413 abort();
414 else
415 exit(1);
418 static void print_help(void)
420 printf(_("Usage: %s [options]\n"), ProgName);
421 puts(_("The Window Maker window manager for the X window system"));
422 puts("");
423 puts(_(" -display host:dpy display to use"));
424 puts(_(" --no-dock do not open the application Dock"));
425 puts(_(" --no-clip do not open the workspace Clip"));
426 puts(_(" --no-autolaunch do not autolaunch applications"));
427 puts(_(" --dont-restore do not restore saved session"));
429 puts(_(" --locale locale locale to use"));
431 puts(_(" --visual-id visualid visual id of visual to use"));
432 puts(_(" --static do not update or save configurations"));
433 #ifndef HAVE_INOTIFY
434 puts(_(" --no-polling do not periodically check for configuration updates"));
435 #endif
436 puts(_(" --version print version and exit"));
437 puts(_(" --help show this message"));
440 static void check_defaults(void)
442 char *path;
444 path = wdefaultspathfordomain("WindowMaker");
446 if (access(path, R_OK) != 0) {
447 wwarning(_("could not find user GNUstep directory (%s)."), path);
449 if (system("wmaker.inst --batch") != 0) {
450 wwarning(_("There was an error while creating GNUstep directory, please "
451 "make sure you have installed Window Maker correctly and run wmaker.inst"));
452 } else {
453 wwarning(_("%s directory created with default configuration."), path);
457 wfree(path);
460 #ifdef HAVE_INOTIFY
462 * Add watch here, used to notify if configuration
463 * files have changed, using linux kernel inotify mechanism
466 static void inotifyWatchConfig(void)
468 char *watchPath = NULL;
470 w_global.inotify.fd_event_queue = inotify_init(); /* Initialise an inotify instance */
471 if (w_global.inotify.fd_event_queue < 0) {
472 wwarning(_("could not initialise an inotify instance."
473 " Changes to the defaults database will require"
474 " a restart to take effect. Check your kernel!"));
475 } else {
476 watchPath = wstrconcat(wusergnusteppath(), "/Defaults");
477 /* Add the watch; really we are only looking for modify events
478 * but we might want more in the future so check all events for now.
479 * The individual events are checked for in event.c.
481 w_global.inotify.wd_defaults = inotify_add_watch(w_global.inotify.fd_event_queue, watchPath, IN_ALL_EVENTS);
482 if (w_global.inotify.wd_defaults < 0) {
483 wwarning(_("could not add an inotify watch on path %s."
484 "Changes to the defaults database will require"
485 " a restart to take effect."), watchPath);
486 close(w_global.inotify.fd_event_queue);
487 w_global.inotify.fd_event_queue = -1;
490 wfree(watchPath);
492 #endif /* HAVE_INOTIFY */
494 static void execInitScript(void)
496 char *file, *paths;
498 paths = wstrconcat(wusergnusteppath(), "/Library/WindowMaker");
499 paths = wstrappend(paths, ":" DEF_CONFIG_PATHS);
501 file = wfindfile(paths, DEF_INIT_SCRIPT);
502 wfree(paths);
504 if (file) {
505 if (system(file) != 0)
506 werror(_("%s:could not execute initialization script"), file);
508 wfree(file);
512 void ExecExitScript(void)
514 char *file, *paths;
516 paths = wstrconcat(wusergnusteppath(), "/Library/WindowMaker");
517 paths = wstrappend(paths, ":" DEF_CONFIG_PATHS);
519 file = wfindfile(paths, DEF_EXIT_SCRIPT);
520 wfree(paths);
522 if (file) {
523 if (system(file) != 0)
524 werror(_("%s:could not execute exit script"), file);
526 wfree(file);
530 int main(int argc, char **argv)
532 int i_am_the_monitor, i, len;
533 char *str, *alt;
535 memset(&w_global, 0, sizeof(w_global));
536 w_global.program.state = WSTATE_NORMAL;
537 w_global.program.signal_state = WSTATE_NORMAL;
538 w_global.timestamp.last_event = CurrentTime;
539 w_global.timestamp.focus_change = CurrentTime;
540 w_global.workspace.ignore_change = False;
541 w_global.shortcut.modifiers_mask = 0xff;
543 /* setup common stuff for the monitor and wmaker itself */
544 WMInitializeApplication("WindowMaker", &argc, argv);
546 memset(&wPreferences, 0, sizeof(wPreferences));
548 wPreferences.fallbackWMs = WMCreateArray(8);
549 alt = getenv("WINDOWMAKER_ALT_WM");
550 if (alt != NULL)
551 WMAddToArray(wPreferences.fallbackWMs, wstrdup(alt));
553 WMAddToArray(wPreferences.fallbackWMs, wstrdup("blackbox"));
554 WMAddToArray(wPreferences.fallbackWMs, wstrdup("metacity"));
555 WMAddToArray(wPreferences.fallbackWMs, wstrdup("fvwm"));
556 WMAddToArray(wPreferences.fallbackWMs, wstrdup("twm"));
557 WMAddToArray(wPreferences.fallbackWMs, NULL);
558 WMAddToArray(wPreferences.fallbackWMs, wstrdup("rxvt"));
559 WMAddToArray(wPreferences.fallbackWMs, wstrdup("xterm"));
561 i_am_the_monitor = 1;
563 for (i = 1; i < argc; i++) {
564 if (strncmp(argv[i], "--for-real", strlen("--for-real")) == 0) {
565 i_am_the_monitor = 0;
566 break;
567 } else if (strcmp(argv[i], "-display") == 0 || strcmp(argv[i], "--display") == 0) {
568 i++;
569 if (i >= argc) {
570 wwarning(_("too few arguments for %s"), argv[i - 1]);
571 exit(0);
573 DisplayName = argv[i];
577 DisplayName = XDisplayName(DisplayName);
578 len = strlen(DisplayName) + 64;
579 str = wmalloc(len);
580 snprintf(str, len, "DISPLAY=%s", DisplayName);
581 putenv(str);
583 if (i_am_the_monitor)
584 return MonitorLoop(argc, argv);
585 else
586 return real_main(argc, argv);
589 static int real_main(int argc, char **argv)
591 int i;
592 char *pos;
593 int d, s;
595 setlocale(LC_ALL, "");
596 wsetabort(wAbort);
598 /* for telling WPrefs what's the name of the wmaker binary being ran */
599 setenv("WMAKER_BIN_NAME", argv[0], 1);
601 ArgCount = argc;
602 Arguments = wmalloc(sizeof(char *) * (ArgCount + 1));
603 for (i = 0; i < argc; i++) {
604 Arguments[i] = argv[i];
606 /* add the extra option to signal that we're just restarting wmaker */
607 Arguments[argc - 1] = "--for-real=";
608 Arguments[argc] = NULL;
610 ProgName = strrchr(argv[0], '/');
611 if (!ProgName)
612 ProgName = argv[0];
613 else
614 ProgName++;
616 if (argc > 1) {
617 for (i = 1; i < argc; i++) {
618 if (strcmp(argv[i], "-nocpp") == 0 || strcmp(argv[i], "--no-cpp") == 0) {
619 wwarning(_("option \"%s\" is deprecated, please remove it from your script"), argv[i]);
620 } else if (strcmp(argv[i], "--for-real") == 0) {
621 wPreferences.flags.restarting = 0;
622 } else if (strcmp(argv[i], "--for-real=") == 0) {
623 wPreferences.flags.restarting = 1;
624 } else if (strcmp(argv[i], "--for-real-") == 0) {
625 wPreferences.flags.restarting = 2;
626 } else if (strcmp(argv[i], "-no-autolaunch") == 0
627 || strcmp(argv[i], "--no-autolaunch") == 0) {
628 wPreferences.flags.noautolaunch = 1;
629 } else if (strcmp(argv[i], "-dont-restore") == 0 || strcmp(argv[i], "--dont-restore") == 0) {
630 wPreferences.flags.norestore = 1;
631 } else if (strcmp(argv[i], "-nodock") == 0 || strcmp(argv[i], "--no-dock") == 0) {
632 wPreferences.flags.nodock = 1;
633 wPreferences.flags.nodrawer = 1;
634 } else if (strcmp(argv[i], "-noclip") == 0 || strcmp(argv[i], "--no-clip") == 0) {
635 wPreferences.flags.noclip = 1;
636 } else if (strcmp(argv[i], "-nodrawer") == 0 || strcmp(argv[i], "--no-drawer") == 0) {
637 wPreferences.flags.nodrawer = 1;
638 } else if (strcmp(argv[i], "-version") == 0 || strcmp(argv[i], "--version") == 0) {
639 printf("Window Maker %s\n", VERSION);
640 exit(0);
641 } else if (strcmp(argv[i], "--global_defaults_path") == 0) {
642 printf("%s/%s\n", SYSCONFDIR, GLOBAL_DEFAULTS_SUBDIR);
643 exit(0);
644 } else if (strcmp(argv[i], "-locale") == 0 || strcmp(argv[i], "--locale") == 0) {
645 i++;
646 if (i >= argc) {
647 wwarning(_("too few arguments for %s"), argv[i - 1]);
648 exit(0);
650 w_global.locale = argv[i];
651 } else if (strcmp(argv[i], "-display") == 0 || strcmp(argv[i], "--display") == 0) {
652 i++;
653 if (i >= argc) {
654 wwarning(_("too few arguments for %s"), argv[i - 1]);
655 exit(0);
657 DisplayName = argv[i];
658 } else if (strcmp(argv[i], "-visualid") == 0 || strcmp(argv[i], "--visual-id") == 0) {
659 i++;
660 if (i >= argc) {
661 wwarning(_("too few arguments for %s"), argv[i - 1]);
662 exit(0);
664 if (initWVisualID(argv[i]) != 0) {
665 wwarning(_("bad value for visualid: \"%s\""), argv[i]);
666 exit(0);
668 } else if (strcmp(argv[i], "-static") == 0 || strcmp(argv[i], "--static") == 0
669 #ifndef HAVE_INOTIFY
670 || strcmp(argv[i], "--no-polling") == 0
671 #endif
673 wPreferences.flags.noupdates = 1;
674 } else if (strcmp(argv[i], "--help") == 0) {
675 print_help();
676 exit(0);
677 } else {
678 printf(_("%s: invalid argument '%s'\n"), argv[0], argv[i]);
679 printf(_("Try '%s --help' for more information\n"), argv[0]);
680 exit(1);
685 if (!wPreferences.flags.noupdates) {
686 /* check existence of Defaults DB directory */
687 check_defaults();
690 if (w_global.locale) {
691 setenv("LANG", w_global.locale, 1);
692 } else {
693 w_global.locale = getenv("LC_ALL");
694 if (!w_global.locale) {
695 w_global.locale = getenv("LANG");
699 setlocale(LC_ALL, "");
701 if (!w_global.locale || strcmp(w_global.locale, "C") == 0 || strcmp(w_global.locale, "POSIX") == 0)
702 w_global.locale = NULL;
703 #ifdef I18N
704 if (getenv("NLSPATH")) {
705 bindtextdomain("WindowMaker", getenv("NLSPATH"));
706 #if defined(MENU_TEXTDOMAIN)
707 bindtextdomain(MENU_TEXTDOMAIN, getenv("NLSPATH"));
708 #endif
709 } else {
710 bindtextdomain("WindowMaker", LOCALEDIR);
711 #if defined(MENU_TEXTDOMAIN)
712 bindtextdomain(MENU_TEXTDOMAIN, LOCALEDIR);
713 #endif
715 bind_textdomain_codeset("WindowMaker", "UTF-8");
716 #if defined(MENU_TEXTDOMAIN)
717 bind_textdomain_codeset(MENU_TEXTDOMAIN, "UTF-8");
718 #endif
719 textdomain("WindowMaker");
721 if (!XSupportsLocale()) {
722 wwarning(_("X server does not support locale"));
725 if (XSetLocaleModifiers("") == NULL) {
726 wwarning(_("cannot set locale modifiers"));
728 #endif
730 if (w_global.locale) {
731 char *ptr;
733 w_global.locale = wstrdup(w_global.locale);
734 ptr = strchr(w_global.locale, '.');
735 if (ptr)
736 *ptr = 0;
739 /* open display */
740 dpy = XOpenDisplay(DisplayName);
741 if (dpy == NULL) {
742 wfatal(_("could not open display \"%s\""), XDisplayName(DisplayName));
743 exit(1);
746 if (fcntl(ConnectionNumber(dpy), F_SETFD, FD_CLOEXEC) < 0) {
747 werror("error setting close-on-exec flag for X connection");
748 exit(1);
752 if (getWVisualID(0) < 0) {
754 * If unspecified, use default visual instead of waiting
755 * for wrlib/context.c:bestContext() that may end up choosing
756 * the "fake" 24 bits added by the Composite extension.
757 * This is required to avoid all sort of corruptions when
758 * composite is enabled, and at a depth other than 24.
760 setWVisualID(0, (int)DefaultVisual(dpy, DefaultScreen(dpy))->visualid);
763 /* check if the user specified a complete display name (with screen).
764 * If so, only manage the specified screen */
765 if (DisplayName)
766 pos = strchr(DisplayName, ':');
767 else
768 pos = NULL;
770 if (pos && sscanf(pos, ":%i.%i", &d, &s) == 2)
771 multiHead = False;
773 DisplayName = XDisplayName(DisplayName);
774 setenv("DISPLAY", DisplayName, 1);
776 wXModifierInitialize();
777 StartUp(!multiHead);
779 if (w_global.screen_count == 1)
780 multiHead = False;
782 execInitScript();
783 #ifdef HAVE_INOTIFY
784 inotifyWatchConfig();
785 #endif
786 EventLoop();
787 return -1;