]> Dogcows Code - chaz/openbox/blob - openbox/openbox.c
Move the main loop out into the libobt
[chaz/openbox] / openbox / openbox.c
1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
2
3 openbox.c for the Openbox window manager
4 Copyright (c) 2006 Mikael Magnusson
5 Copyright (c) 2003-2007 Dana Jansens
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 See the COPYING file for a copy of the GNU General Public License.
18 */
19
20 #include "debug.h"
21 #include "openbox.h"
22 #include "session.h"
23 #include "dock.h"
24 #include "modkeys.h"
25 #include "event.h"
26 #include "menu.h"
27 #include "client.h"
28 #include "xerror.h"
29 #include "prop.h"
30 #include "screen.h"
31 #include "actions.h"
32 #include "startupnotify.h"
33 #include "focus.h"
34 #include "focus_cycle.h"
35 #include "focus_cycle_indicator.h"
36 #include "focus_cycle_popup.h"
37 #include "moveresize.h"
38 #include "frame.h"
39 #include "keyboard.h"
40 #include "mouse.h"
41 #include "extensions.h"
42 #include "menuframe.h"
43 #include "grab.h"
44 #include "group.h"
45 #include "config.h"
46 #include "ping.h"
47 #include "mainloop.h"
48 #include "gettext.h"
49 #include "parser/parse.h"
50 #include "render/render.h"
51 #include "render/theme.h"
52 #include "obt/display.h"
53
54 #ifdef HAVE_FCNTL_H
55 # include <fcntl.h>
56 #endif
57 #ifdef HAVE_SIGNAL_H
58 # include <signal.h>
59 #endif
60 #ifdef HAVE_STDLIB_H
61 # include <stdlib.h>
62 #endif
63 #ifdef HAVE_LOCALE_H
64 # include <locale.h>
65 #endif
66 #ifdef HAVE_SYS_STAT_H
67 # include <sys/stat.h>
68 # include <sys/types.h>
69 #endif
70 #ifdef HAVE_SYS_WAIT_H
71 # include <sys/types.h>
72 # include <sys/wait.h>
73 #endif
74 #ifdef HAVE_UNISTD_H
75 # include <unistd.h>
76 #endif
77 #include <errno.h>
78
79 #include <X11/cursorfont.h>
80 #if USE_XCURSOR
81 #include <X11/Xcursor/Xcursor.h>
82 #endif
83
84 #include <X11/Xlib.h>
85 #include <X11/keysym.h>
86
87 RrInstance *ob_rr_inst;
88 RrTheme *ob_rr_theme;
89 ObtMainLoop *ob_main_loop;
90 Display *ob_display;
91 gint ob_screen;
92 gboolean ob_replace_wm = FALSE;
93 gboolean ob_sm_use = TRUE;
94 gchar *ob_sm_id = NULL;
95 gchar *ob_sm_save_file = NULL;
96 gboolean ob_sm_restore = TRUE;
97 gboolean ob_debug_xinerama = FALSE;
98
99 static ObState state;
100 static gboolean xsync = FALSE;
101 static gboolean reconfigure = FALSE;
102 static gboolean restart = FALSE;
103 static gchar *restart_path = NULL;
104 static Cursor cursors[OB_NUM_CURSORS];
105 static KeyCode keys[OB_NUM_KEYS];
106 static gint exitcode = 0;
107 static guint remote_control = 0;
108 static gboolean being_replaced = FALSE;
109
110 static void signal_handler(gint signal, gpointer data);
111 static void remove_args(gint *argc, gchar **argv, gint index, gint num);
112 static void parse_env();
113 static void parse_args(gint *argc, gchar **argv);
114 static Cursor load_cursor(const gchar *name, guint fontval);
115
116 gint main(gint argc, gchar **argv)
117 {
118 gchar *program_name;
119
120 state = OB_STATE_STARTING;
121
122 /* initialize the locale */
123 if (!setlocale(LC_ALL, ""))
124 g_message("Couldn't set locale from environment.");
125 bindtextdomain(PACKAGE_NAME, LOCALEDIR);
126 bind_textdomain_codeset(PACKAGE_NAME, "UTF-8");
127 textdomain(PACKAGE_NAME);
128
129 if (chdir(g_get_home_dir()) == -1)
130 g_message(_("Unable to change to home directory '%s': %s"),
131 g_get_home_dir(), g_strerror(errno));
132
133 /* parse the command line args, which can change the argv[0] */
134 parse_args(&argc, argv);
135 /* parse the environment variables */
136 parse_env();
137
138 program_name = g_path_get_basename(argv[0]);
139 g_set_prgname(program_name);
140
141 if (!remote_control) {
142 parse_paths_startup();
143
144 session_startup(argc, argv);
145 }
146
147 ob_display = obt_display_open(NULL);
148 if (ob_display == NULL)
149 ob_exit_with_error(_("Failed to open the display from the DISPLAY environment variable."));
150
151 if (remote_control) {
152 prop_startup();
153
154 /* Send client message telling the OB process to:
155 * remote_control = 1 -> reconfigure
156 * remote_control = 2 -> restart */
157 PROP_MSG(RootWindow(ob_display, ob_screen),
158 ob_control, remote_control, 0, 0, 0);
159 obt_display_close(ob_display);
160 exit(EXIT_SUCCESS);
161 }
162
163 ob_main_loop = obt_main_loop_new(ob_display);
164
165 /* set up signal handler */
166 obt_main_loop_signal_add(ob_main_loop, SIGUSR1, signal_handler, NULL,NULL);
167 obt_main_loop_signal_add(ob_main_loop, SIGUSR2, signal_handler, NULL,NULL);
168 obt_main_loop_signal_add(ob_main_loop, SIGTERM, signal_handler, NULL,NULL);
169 obt_main_loop_signal_add(ob_main_loop, SIGINT, signal_handler, NULL,NULL);
170 obt_main_loop_signal_add(ob_main_loop, SIGHUP, signal_handler, NULL,NULL);
171 obt_main_loop_signal_add(ob_main_loop, SIGPIPE, signal_handler, NULL,NULL);
172 obt_main_loop_signal_add(ob_main_loop, SIGCHLD, signal_handler, NULL,NULL);
173
174 ob_screen = DefaultScreen(ob_display);
175
176 ob_rr_inst = RrInstanceNew(ob_display, ob_screen);
177 if (ob_rr_inst == NULL)
178 ob_exit_with_error(_("Failed to initialize the obrender library."));
179
180 XSynchronize(ob_display, xsync);
181
182 /* check for locale support */
183 if (!XSupportsLocale())
184 g_message(_("X server does not support locale."));
185 if (!XSetLocaleModifiers(""))
186 g_message(_("Cannot set locale modifiers for the X server."));
187
188 /* set our error handler */
189 XSetErrorHandler(xerror_handler);
190
191 /* set the DISPLAY environment variable for any lauched children, to the
192 display we're using, so they open in the right place. */
193 putenv(g_strdup_printf("DISPLAY=%s", DisplayString(ob_display)));
194
195 /* create available cursors */
196 cursors[OB_CURSOR_NONE] = None;
197 cursors[OB_CURSOR_POINTER] = load_cursor("left_ptr", XC_left_ptr);
198 cursors[OB_CURSOR_BUSYPOINTER] = load_cursor("left_ptr_watch",XC_left_ptr);
199 cursors[OB_CURSOR_BUSY] = load_cursor("watch", XC_watch);
200 cursors[OB_CURSOR_MOVE] = load_cursor("fleur", XC_fleur);
201 cursors[OB_CURSOR_NORTH] = load_cursor("top_side", XC_top_side);
202 cursors[OB_CURSOR_NORTHEAST] = load_cursor("top_right_corner",
203 XC_top_right_corner);
204 cursors[OB_CURSOR_EAST] = load_cursor("right_side", XC_right_side);
205 cursors[OB_CURSOR_SOUTHEAST] = load_cursor("bottom_right_corner",
206 XC_bottom_right_corner);
207 cursors[OB_CURSOR_SOUTH] = load_cursor("bottom_side", XC_bottom_side);
208 cursors[OB_CURSOR_SOUTHWEST] = load_cursor("bottom_left_corner",
209 XC_bottom_left_corner);
210 cursors[OB_CURSOR_WEST] = load_cursor("left_side", XC_left_side);
211 cursors[OB_CURSOR_NORTHWEST] = load_cursor("top_left_corner",
212 XC_top_left_corner);
213
214
215 prop_startup(); /* get atoms values for the display */
216 extensions_query_all(); /* find which extensions are present */
217
218 if (screen_annex()) { /* it will be ours! */
219 do {
220 modkeys_startup(reconfigure);
221
222 /* get the keycodes for keys we use */
223 keys[OB_KEY_RETURN] = modkeys_sym_to_code(XK_Return);
224 keys[OB_KEY_ESCAPE] = modkeys_sym_to_code(XK_Escape);
225 keys[OB_KEY_LEFT] = modkeys_sym_to_code(XK_Left);
226 keys[OB_KEY_RIGHT] = modkeys_sym_to_code(XK_Right);
227 keys[OB_KEY_UP] = modkeys_sym_to_code(XK_Up);
228 keys[OB_KEY_DOWN] = modkeys_sym_to_code(XK_Down);
229
230 {
231 ObParseInst *i;
232 xmlDocPtr doc;
233 xmlNodePtr node;
234
235 /* startup the parsing so everything can register sections
236 of the rc */
237 i = parse_startup();
238
239 /* register all the available actions */
240 actions_startup(reconfigure);
241 /* start up config which sets up with the parser */
242 config_startup(i);
243
244 /* parse/load user options */
245 if (parse_load_rc(NULL, &doc, &node)) {
246 parse_tree(i, doc, node->xmlChildrenNode);
247 parse_close(doc);
248 } else
249 g_message(_("Unable to find a valid config file, using some simple defaults"));
250
251 /*
252 if (config_type != NULL)
253 PROP_SETS(RootWindow(ob_display, ob_screen),
254 ob_config, config_type);
255 */
256
257 /* we're done with parsing now, kill it */
258 parse_shutdown(i);
259 }
260
261 /* load the theme specified in the rc file */
262 {
263 RrTheme *theme;
264 if ((theme = RrThemeNew(ob_rr_inst, config_theme, TRUE,
265 config_font_activewindow,
266 config_font_inactivewindow,
267 config_font_menutitle,
268 config_font_menuitem,
269 config_font_osd)))
270 {
271 RrThemeFree(ob_rr_theme);
272 ob_rr_theme = theme;
273 }
274 if (ob_rr_theme == NULL)
275 ob_exit_with_error(_("Unable to load a theme."));
276
277 PROP_SETS(RootWindow(ob_display, ob_screen),
278 ob_theme, ob_rr_theme->name);
279 }
280
281 if (reconfigure) {
282 GList *it;
283
284 /* update all existing windows for the new theme */
285 for (it = client_list; it; it = g_list_next(it)) {
286 ObClient *c = it->data;
287 frame_adjust_theme(c->frame);
288 }
289 }
290 event_startup(reconfigure);
291 /* focus_backup is used for stacking, so this needs to come before
292 anything that calls stacking_add */
293 sn_startup(reconfigure);
294 window_startup(reconfigure);
295 focus_startup(reconfigure);
296 focus_cycle_startup(reconfigure);
297 focus_cycle_indicator_startup(reconfigure);
298 focus_cycle_popup_startup(reconfigure);
299 screen_startup(reconfigure);
300 grab_startup(reconfigure);
301 group_startup(reconfigure);
302 ping_startup(reconfigure);
303 client_startup(reconfigure);
304 dock_startup(reconfigure);
305 moveresize_startup(reconfigure);
306 keyboard_startup(reconfigure);
307 mouse_startup(reconfigure);
308 menu_frame_startup(reconfigure);
309 menu_startup(reconfigure);
310
311 if (!reconfigure) {
312 guint32 xid;
313 ObWindow *w;
314
315 /* get all the existing windows */
316 client_manage_all();
317 focus_nothing();
318
319 /* focus what was focused if a wm was already running */
320 if (PROP_GET32(RootWindow(ob_display, ob_screen),
321 net_active_window, window, &xid) &&
322 (w = g_hash_table_lookup(window_map, &xid)) &&
323 WINDOW_IS_CLIENT(w))
324 {
325 client_focus(WINDOW_AS_CLIENT(w));
326 }
327 } else {
328 GList *it;
329
330 /* redecorate all existing windows */
331 for (it = client_list; it; it = g_list_next(it)) {
332 ObClient *c = it->data;
333
334 /* the new config can change the window's decorations */
335 client_setup_decor_and_functions(c, FALSE);
336 /* redraw the frames */
337 frame_adjust_area(c->frame, TRUE, TRUE, FALSE);
338 /* the decor sizes may have changed, so the windows may
339 end up in new positions */
340 client_reconfigure(c, FALSE);
341 }
342 }
343
344 reconfigure = FALSE;
345
346 state = OB_STATE_RUNNING;
347 obt_main_loop_run(ob_main_loop);
348 state = OB_STATE_EXITING;
349
350 if (!reconfigure) {
351 dock_remove_all();
352 client_unmanage_all();
353 }
354
355 menu_shutdown(reconfigure);
356 menu_frame_shutdown(reconfigure);
357 mouse_shutdown(reconfigure);
358 keyboard_shutdown(reconfigure);
359 moveresize_shutdown(reconfigure);
360 dock_shutdown(reconfigure);
361 client_shutdown(reconfigure);
362 ping_shutdown(reconfigure);
363 group_shutdown(reconfigure);
364 grab_shutdown(reconfigure);
365 screen_shutdown(reconfigure);
366 focus_cycle_popup_shutdown(reconfigure);
367 focus_cycle_indicator_shutdown(reconfigure);
368 focus_cycle_shutdown(reconfigure);
369 focus_shutdown(reconfigure);
370 window_shutdown(reconfigure);
371 sn_shutdown(reconfigure);
372 event_shutdown(reconfigure);
373 config_shutdown();
374 actions_shutdown(reconfigure);
375 modkeys_shutdown(reconfigure);
376 } while (reconfigure);
377 }
378
379 XSync(ob_display, FALSE);
380
381 RrThemeFree(ob_rr_theme);
382 RrInstanceFree(ob_rr_inst);
383
384 session_shutdown(being_replaced);
385
386 obt_display_close(ob_display);
387
388 parse_paths_shutdown();
389
390 if (restart) {
391 if (restart_path != NULL) {
392 gint argcp;
393 gchar **argvp;
394 GError *err = NULL;
395
396 /* run other window manager */
397 if (g_shell_parse_argv(restart_path, &argcp, &argvp, &err)) {
398 execvp(argvp[0], argvp);
399 g_strfreev(argvp);
400 } else {
401 g_message(
402 _("Restart failed to execute new executable '%s': %s"),
403 restart_path, err->message);
404 g_error_free(err);
405 }
406 }
407
408 /* we remove the session arguments from argv, so put them back,
409 also don't restore the session on restart */
410 if (ob_sm_save_file != NULL || ob_sm_id != NULL) {
411 gchar **nargv;
412 gint i, l;
413
414 l = argc + 1 +
415 (ob_sm_save_file != NULL ? 2 : 0) +
416 (ob_sm_id != NULL ? 2 : 0);
417 nargv = g_new0(gchar*, l+1);
418 for (i = 0; i < argc; ++i)
419 nargv[i] = argv[i];
420
421 if (ob_sm_save_file != NULL) {
422 nargv[i++] = g_strdup("--sm-save-file");
423 nargv[i++] = ob_sm_save_file;
424 }
425 if (ob_sm_id != NULL) {
426 nargv[i++] = g_strdup("--sm-client-id");
427 nargv[i++] = ob_sm_id;
428 }
429 nargv[i++] = g_strdup("--sm-no-load");
430 g_assert(i == l);
431 argv = nargv;
432 }
433
434 /* re-run me */
435 execvp(argv[0], argv); /* try how we were run */
436 execlp(argv[0], program_name, (gchar*)NULL); /* last resort */
437 }
438
439 /* free stuff passed in from the command line or environment */
440 g_free(ob_sm_save_file);
441 g_free(ob_sm_id);
442 g_free(program_name);
443
444 return exitcode;
445 }
446
447 static void signal_handler(gint signal, gpointer data)
448 {
449 switch (signal) {
450 case SIGUSR1:
451 ob_debug("Caught signal %d. Restarting.\n", signal);
452 ob_restart();
453 break;
454 case SIGUSR2:
455 ob_debug("Caught signal %d. Reconfiguring.\n", signal);
456 ob_reconfigure();
457 break;
458 case SIGCHLD:
459 /* reap children */
460 while (waitpid(-1, NULL, WNOHANG) > 0);
461 break;
462 default:
463 ob_debug("Caught signal %d. Exiting.\n", signal);
464 /* TERM and INT return a 0 code */
465 ob_exit(!(signal == SIGTERM || signal == SIGINT));
466 }
467 }
468
469 static void print_version()
470 {
471 g_print("Openbox %s\n", PACKAGE_VERSION);
472 g_print(_("Copyright (c)"));
473 g_print(" 2008 Mikael Magnusson\n");
474 g_print(_("Copyright (c)"));
475 g_print(" 2003-2006 Dana Jansens\n\n");
476 g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
477 g_print("This is free software, and you are welcome to redistribute it\n");
478 g_print("under certain conditions. See the file COPYING for details.\n\n");
479 }
480
481 static void print_help()
482 {
483 g_print(_("Syntax: openbox [options]\n"));
484 g_print(_("\nOptions:\n"));
485 g_print(_(" --help Display this help and exit\n"));
486 g_print(_(" --version Display the version and exit\n"));
487 g_print(_(" --replace Replace the currently running window manager\n"));
488 g_print(_(" --sm-disable Disable connection to the session manager\n"));
489 g_print(_("\nPassing messages to a running Openbox instance:\n"));
490 g_print(_(" --reconfigure Reload Openbox's configuration\n"));
491 g_print(_(" --restart Restart Openbox\n"));
492 g_print(_(" --exit Exit Openbox\n"));
493 g_print(_("\nDebugging options:\n"));
494 g_print(_(" --sync Run in synchronous mode\n"));
495 g_print(_(" --debug Display debugging output\n"));
496 g_print(_(" --debug-focus Display debugging output for focus handling\n"));
497 g_print(_(" --debug-xinerama Split the display into fake xinerama screens\n"));
498 g_print(_("\nPlease report bugs at %s\n"), PACKAGE_BUGREPORT);
499 }
500
501 static void remove_args(gint *argc, gchar **argv, gint index, gint num)
502 {
503 gint i;
504
505 for (i = index; i < *argc - num; ++i)
506 argv[i] = argv[i+num];
507 for (; i < *argc; ++i)
508 argv[i] = NULL;
509 *argc -= num;
510 }
511
512 static void parse_env()
513 {
514 /* unset this so we don't pass it on unknowingly */
515 gchar *s = g_strdup("DESKTOP_STARTUP_ID");
516 putenv(s);
517 g_free(s);
518 }
519
520 static void parse_args(gint *argc, gchar **argv)
521 {
522 gint i;
523
524 for (i = 1; i < *argc; ++i) {
525 if (!strcmp(argv[i], "--version")) {
526 print_version();
527 exit(0);
528 }
529 else if (!strcmp(argv[i], "--help")) {
530 print_help();
531 exit(0);
532 }
533 else if (!strcmp(argv[i], "--g-fatal-warnings")) {
534 g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
535 }
536 else if (!strcmp(argv[i], "--replace")) {
537 ob_replace_wm = TRUE;
538 remove_args(argc, argv, i, 1);
539 --i; /* this arg was removed so go back */
540 }
541 else if (!strcmp(argv[i], "--sync")) {
542 xsync = TRUE;
543 }
544 else if (!strcmp(argv[i], "--debug")) {
545 ob_debug_show_output(TRUE);
546 ob_debug_enable(OB_DEBUG_SM, TRUE);
547 ob_debug_enable(OB_DEBUG_APP_BUGS, TRUE);
548 }
549 else if (!strcmp(argv[i], "--debug-focus")) {
550 ob_debug_show_output(TRUE);
551 ob_debug_enable(OB_DEBUG_SM, TRUE);
552 ob_debug_enable(OB_DEBUG_APP_BUGS, TRUE);
553 ob_debug_enable(OB_DEBUG_FOCUS, TRUE);
554 }
555 else if (!strcmp(argv[i], "--debug-xinerama")) {
556 ob_debug_xinerama = TRUE;
557 }
558 else if (!strcmp(argv[i], "--reconfigure")) {
559 remote_control = 1;
560 }
561 else if (!strcmp(argv[i], "--restart")) {
562 remote_control = 2;
563 }
564 else if (!strcmp(argv[i], "--exit")) {
565 remote_control = 3;
566 }
567 else if (!strcmp(argv[i], "--sm-save-file")) {
568 if (i == *argc - 1) /* no args left */
569 /* not translated cuz it's sekret */
570 g_printerr("--sm-save-file requires an argument\n");
571 else {
572 ob_sm_save_file = g_strdup(argv[i+1]);
573 remove_args(argc, argv, i, 2);
574 --i; /* this arg was removed so go back */
575 ob_debug_type(OB_DEBUG_SM, "--sm-save-file %s\n",
576 ob_sm_save_file);
577 }
578 }
579 else if (!strcmp(argv[i], "--sm-client-id")) {
580 if (i == *argc - 1) /* no args left */
581 /* not translated cuz it's sekret */
582 g_printerr("--sm-client-id requires an argument\n");
583 else {
584 ob_sm_id = g_strdup(argv[i+1]);
585 remove_args(argc, argv, i, 2);
586 --i; /* this arg was removed so go back */
587 ob_debug_type(OB_DEBUG_SM, "--sm-client-id %s\n", ob_sm_id);
588 }
589 }
590 else if (!strcmp(argv[i], "--sm-disable")) {
591 ob_sm_use = FALSE;
592 }
593 else if (!strcmp(argv[i], "--sm-no-load")) {
594 ob_sm_restore = FALSE;
595 remove_args(argc, argv, i, 1);
596 --i; /* this arg was removed so go back */
597 }
598 else {
599 /* this is a memleak.. oh well.. heh */
600 gchar *err = g_strdup_printf
601 (_("Invalid command line argument '%s'\n"), argv[i]);
602 ob_exit_with_error(err);
603 }
604 }
605 }
606
607 static Cursor load_cursor(const gchar *name, guint fontval)
608 {
609 Cursor c = None;
610
611 #if USE_XCURSOR
612 c = XcursorLibraryLoadCursor(ob_display, name);
613 #endif
614 if (c == None)
615 c = XCreateFontCursor(ob_display, fontval);
616 return c;
617 }
618
619 void ob_exit_with_error(const gchar *msg)
620 {
621 g_message(msg);
622 session_shutdown(TRUE);
623 exit(EXIT_FAILURE);
624 }
625
626 void ob_restart_other(const gchar *path)
627 {
628 restart_path = g_strdup(path);
629 ob_restart();
630 }
631
632 void ob_restart()
633 {
634 restart = TRUE;
635 ob_exit(0);
636 }
637
638 void ob_reconfigure()
639 {
640 reconfigure = TRUE;
641 ob_exit(0);
642 }
643
644 void ob_exit(gint code)
645 {
646 exitcode = code;
647 obt_main_loop_exit(ob_main_loop);
648 }
649
650 void ob_exit_replace()
651 {
652 exitcode = 0;
653 being_replaced = TRUE;
654 obt_main_loop_exit(ob_main_loop);
655 }
656
657 Cursor ob_cursor(ObCursor cursor)
658 {
659 g_assert(cursor < OB_NUM_CURSORS);
660 return cursors[cursor];
661 }
662
663 KeyCode ob_keycode(ObKey key)
664 {
665 g_assert(key < OB_NUM_KEYS);
666 return keys[key];
667 }
668
669 ObState ob_state()
670 {
671 return state;
672 }
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