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[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/obt.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 ObtInstance *obt_inst;
88 RrInstance *ob_rr_inst;
89 RrTheme *ob_rr_theme;
90 ObMainLoop *ob_main_loop;
91 Display *ob_display;
92 gint ob_screen;
93 gboolean ob_replace_wm = FALSE;
94 gboolean ob_sm_use = TRUE;
95 gchar *ob_sm_id = NULL;
96 gchar *ob_sm_save_file = NULL;
97 gboolean ob_sm_restore = TRUE;
98 gboolean ob_debug_xinerama = FALSE;
99
100 static ObState state;
101 static gboolean xsync = FALSE;
102 static gboolean reconfigure = FALSE;
103 static gboolean restart = FALSE;
104 static gchar *restart_path = NULL;
105 static Cursor cursors[OB_NUM_CURSORS];
106 static KeyCode keys[OB_NUM_KEYS];
107 static gint exitcode = 0;
108 static guint remote_control = 0;
109 static gboolean being_replaced = FALSE;
110
111 static void signal_handler(gint signal, gpointer data);
112 static void remove_args(gint *argc, gchar **argv, gint index, gint num);
113 static void parse_env();
114 static void parse_args(gint *argc, gchar **argv);
115 static Cursor load_cursor(const gchar *name, guint fontval);
116
117 gint main(gint argc, gchar **argv)
118 {
119 gchar *program_name;
120
121 state = OB_STATE_STARTING;
122
123 /* initialize the locale */
124 if (!setlocale(LC_ALL, ""))
125 g_message("Couldn't set locale from environment.");
126 bindtextdomain(PACKAGE_NAME, LOCALEDIR);
127 bind_textdomain_codeset(PACKAGE_NAME, "UTF-8");
128 textdomain(PACKAGE_NAME);
129
130 if (chdir(g_get_home_dir()) == -1)
131 g_message(_("Unable to change to home directory '%s': %s"),
132 g_get_home_dir(), g_strerror(errno));
133
134 /* parse the command line args, which can change the argv[0] */
135 parse_args(&argc, argv);
136 /* parse the environment variables */
137 parse_env();
138
139 program_name = g_path_get_basename(argv[0]);
140 g_set_prgname(program_name);
141
142 if (!remote_control) {
143 parse_paths_startup();
144
145 session_startup(argc, argv);
146 }
147
148 obt_inst = obt_instance_new(NULL);
149 if (obt_inst == NULL)
150 ob_exit_with_error(_("Failed to open the display from the DISPLAY environment variable."));
151 ob_display = obt_display(obt_inst);
152
153 if (remote_control) {
154 prop_startup();
155
156 /* Send client message telling the OB process to:
157 * remote_control = 1 -> reconfigure
158 * remote_control = 2 -> restart */
159 PROP_MSG(RootWindow(ob_display, ob_screen),
160 ob_control, remote_control, 0, 0, 0);
161 obt_instance_unref(obt_inst);
162 exit(EXIT_SUCCESS);
163 }
164
165 ob_main_loop = ob_main_loop_new(ob_display);
166
167 /* set up signal handler */
168 ob_main_loop_signal_add(ob_main_loop, SIGUSR1, signal_handler, NULL, NULL);
169 ob_main_loop_signal_add(ob_main_loop, SIGUSR2, signal_handler, NULL, NULL);
170 ob_main_loop_signal_add(ob_main_loop, SIGTERM, signal_handler, NULL, NULL);
171 ob_main_loop_signal_add(ob_main_loop, SIGINT, signal_handler, NULL, NULL);
172 ob_main_loop_signal_add(ob_main_loop, SIGHUP, signal_handler, NULL, NULL);
173 ob_main_loop_signal_add(ob_main_loop, SIGPIPE, signal_handler, NULL, NULL);
174 ob_main_loop_signal_add(ob_main_loop, SIGCHLD, signal_handler, NULL, NULL);
175
176 ob_screen = DefaultScreen(ob_display);
177
178 ob_rr_inst = RrInstanceNew(ob_display, ob_screen);
179 if (ob_rr_inst == NULL)
180 ob_exit_with_error(_("Failed to initialize the obrender library."));
181
182 XSynchronize(ob_display, xsync);
183
184 /* check for locale support */
185 if (!XSupportsLocale())
186 g_message(_("X server does not support locale."));
187 if (!XSetLocaleModifiers(""))
188 g_message(_("Cannot set locale modifiers for the X server."));
189
190 /* set our error handler */
191 XSetErrorHandler(xerror_handler);
192
193 /* set the DISPLAY environment variable for any lauched children, to the
194 display we're using, so they open in the right place. */
195 putenv(g_strdup_printf("DISPLAY=%s", DisplayString(ob_display)));
196
197 /* create available cursors */
198 cursors[OB_CURSOR_NONE] = None;
199 cursors[OB_CURSOR_POINTER] = load_cursor("left_ptr", XC_left_ptr);
200 cursors[OB_CURSOR_BUSYPOINTER] = load_cursor("left_ptr_watch",XC_left_ptr);
201 cursors[OB_CURSOR_BUSY] = load_cursor("watch", XC_watch);
202 cursors[OB_CURSOR_MOVE] = load_cursor("fleur", XC_fleur);
203 cursors[OB_CURSOR_NORTH] = load_cursor("top_side", XC_top_side);
204 cursors[OB_CURSOR_NORTHEAST] = load_cursor("top_right_corner",
205 XC_top_right_corner);
206 cursors[OB_CURSOR_EAST] = load_cursor("right_side", XC_right_side);
207 cursors[OB_CURSOR_SOUTHEAST] = load_cursor("bottom_right_corner",
208 XC_bottom_right_corner);
209 cursors[OB_CURSOR_SOUTH] = load_cursor("bottom_side", XC_bottom_side);
210 cursors[OB_CURSOR_SOUTHWEST] = load_cursor("bottom_left_corner",
211 XC_bottom_left_corner);
212 cursors[OB_CURSOR_WEST] = load_cursor("left_side", XC_left_side);
213 cursors[OB_CURSOR_NORTHWEST] = load_cursor("top_left_corner",
214 XC_top_left_corner);
215
216
217 prop_startup(); /* get atoms values for the display */
218 extensions_query_all(); /* find which extensions are present */
219
220 if (screen_annex()) { /* it will be ours! */
221 do {
222 modkeys_startup(reconfigure);
223
224 /* get the keycodes for keys we use */
225 keys[OB_KEY_RETURN] = modkeys_sym_to_code(XK_Return);
226 keys[OB_KEY_ESCAPE] = modkeys_sym_to_code(XK_Escape);
227 keys[OB_KEY_LEFT] = modkeys_sym_to_code(XK_Left);
228 keys[OB_KEY_RIGHT] = modkeys_sym_to_code(XK_Right);
229 keys[OB_KEY_UP] = modkeys_sym_to_code(XK_Up);
230 keys[OB_KEY_DOWN] = modkeys_sym_to_code(XK_Down);
231
232 {
233 ObParseInst *i;
234 xmlDocPtr doc;
235 xmlNodePtr node;
236
237 /* startup the parsing so everything can register sections
238 of the rc */
239 i = parse_startup();
240
241 /* register all the available actions */
242 actions_startup(reconfigure);
243 /* start up config which sets up with the parser */
244 config_startup(i);
245
246 /* parse/load user options */
247 if (parse_load_rc(NULL, &doc, &node)) {
248 parse_tree(i, doc, node->xmlChildrenNode);
249 parse_close(doc);
250 } else
251 g_message(_("Unable to find a valid config file, using some simple defaults"));
252
253 /*
254 if (config_type != NULL)
255 PROP_SETS(RootWindow(ob_display, ob_screen),
256 ob_config, config_type);
257 */
258
259 /* we're done with parsing now, kill it */
260 parse_shutdown(i);
261 }
262
263 /* load the theme specified in the rc file */
264 {
265 RrTheme *theme;
266 if ((theme = RrThemeNew(ob_rr_inst, config_theme, TRUE,
267 config_font_activewindow,
268 config_font_inactivewindow,
269 config_font_menutitle,
270 config_font_menuitem,
271 config_font_osd)))
272 {
273 RrThemeFree(ob_rr_theme);
274 ob_rr_theme = theme;
275 }
276 if (ob_rr_theme == NULL)
277 ob_exit_with_error(_("Unable to load a theme."));
278
279 PROP_SETS(RootWindow(ob_display, ob_screen),
280 ob_theme, ob_rr_theme->name);
281 }
282
283 if (reconfigure) {
284 GList *it;
285
286 /* update all existing windows for the new theme */
287 for (it = client_list; it; it = g_list_next(it)) {
288 ObClient *c = it->data;
289 frame_adjust_theme(c->frame);
290 }
291 }
292 event_startup(reconfigure);
293 /* focus_backup is used for stacking, so this needs to come before
294 anything that calls stacking_add */
295 sn_startup(reconfigure);
296 window_startup(reconfigure);
297 focus_startup(reconfigure);
298 focus_cycle_startup(reconfigure);
299 focus_cycle_indicator_startup(reconfigure);
300 focus_cycle_popup_startup(reconfigure);
301 screen_startup(reconfigure);
302 grab_startup(reconfigure);
303 group_startup(reconfigure);
304 ping_startup(reconfigure);
305 client_startup(reconfigure);
306 dock_startup(reconfigure);
307 moveresize_startup(reconfigure);
308 keyboard_startup(reconfigure);
309 mouse_startup(reconfigure);
310 menu_frame_startup(reconfigure);
311 menu_startup(reconfigure);
312
313 if (!reconfigure) {
314 guint32 xid;
315 ObWindow *w;
316
317 /* get all the existing windows */
318 client_manage_all();
319 focus_nothing();
320
321 /* focus what was focused if a wm was already running */
322 if (PROP_GET32(RootWindow(ob_display, ob_screen),
323 net_active_window, window, &xid) &&
324 (w = g_hash_table_lookup(window_map, &xid)) &&
325 WINDOW_IS_CLIENT(w))
326 {
327 client_focus(WINDOW_AS_CLIENT(w));
328 }
329 } else {
330 GList *it;
331
332 /* redecorate all existing windows */
333 for (it = client_list; it; it = g_list_next(it)) {
334 ObClient *c = it->data;
335
336 /* the new config can change the window's decorations */
337 client_setup_decor_and_functions(c, FALSE);
338 /* redraw the frames */
339 frame_adjust_area(c->frame, TRUE, TRUE, FALSE);
340 /* the decor sizes may have changed, so the windows may
341 end up in new positions */
342 client_reconfigure(c, FALSE);
343 }
344 }
345
346 reconfigure = FALSE;
347
348 state = OB_STATE_RUNNING;
349 ob_main_loop_run(ob_main_loop);
350 state = OB_STATE_EXITING;
351
352 if (!reconfigure) {
353 dock_remove_all();
354 client_unmanage_all();
355 }
356
357 menu_shutdown(reconfigure);
358 menu_frame_shutdown(reconfigure);
359 mouse_shutdown(reconfigure);
360 keyboard_shutdown(reconfigure);
361 moveresize_shutdown(reconfigure);
362 dock_shutdown(reconfigure);
363 client_shutdown(reconfigure);
364 ping_shutdown(reconfigure);
365 group_shutdown(reconfigure);
366 grab_shutdown(reconfigure);
367 screen_shutdown(reconfigure);
368 focus_cycle_popup_shutdown(reconfigure);
369 focus_cycle_indicator_shutdown(reconfigure);
370 focus_cycle_shutdown(reconfigure);
371 focus_shutdown(reconfigure);
372 window_shutdown(reconfigure);
373 sn_shutdown(reconfigure);
374 event_shutdown(reconfigure);
375 config_shutdown();
376 actions_shutdown(reconfigure);
377 modkeys_shutdown(reconfigure);
378 } while (reconfigure);
379 }
380
381 XSync(ob_display, FALSE);
382
383 RrThemeFree(ob_rr_theme);
384 RrInstanceFree(ob_rr_inst);
385
386 session_shutdown(being_replaced);
387
388 obt_instance_unref(obt_inst);
389
390 parse_paths_shutdown();
391
392 if (restart) {
393 if (restart_path != NULL) {
394 gint argcp;
395 gchar **argvp;
396 GError *err = NULL;
397
398 /* run other window manager */
399 if (g_shell_parse_argv(restart_path, &argcp, &argvp, &err)) {
400 execvp(argvp[0], argvp);
401 g_strfreev(argvp);
402 } else {
403 g_message(
404 _("Restart failed to execute new executable '%s': %s"),
405 restart_path, err->message);
406 g_error_free(err);
407 }
408 }
409
410 /* we remove the session arguments from argv, so put them back,
411 also don't restore the session on restart */
412 if (ob_sm_save_file != NULL || ob_sm_id != NULL) {
413 gchar **nargv;
414 gint i, l;
415
416 l = argc + 1 +
417 (ob_sm_save_file != NULL ? 2 : 0) +
418 (ob_sm_id != NULL ? 2 : 0);
419 nargv = g_new0(gchar*, l+1);
420 for (i = 0; i < argc; ++i)
421 nargv[i] = argv[i];
422
423 if (ob_sm_save_file != NULL) {
424 nargv[i++] = g_strdup("--sm-save-file");
425 nargv[i++] = ob_sm_save_file;
426 }
427 if (ob_sm_id != NULL) {
428 nargv[i++] = g_strdup("--sm-client-id");
429 nargv[i++] = ob_sm_id;
430 }
431 nargv[i++] = g_strdup("--sm-no-load");
432 g_assert(i == l);
433 argv = nargv;
434 }
435
436 /* re-run me */
437 execvp(argv[0], argv); /* try how we were run */
438 execlp(argv[0], program_name, (gchar*)NULL); /* last resort */
439 }
440
441 /* free stuff passed in from the command line or environment */
442 g_free(ob_sm_save_file);
443 g_free(ob_sm_id);
444 g_free(program_name);
445
446 return exitcode;
447 }
448
449 static void signal_handler(gint signal, gpointer data)
450 {
451 switch (signal) {
452 case SIGUSR1:
453 ob_debug("Caught signal %d. Restarting.\n", signal);
454 ob_restart();
455 break;
456 case SIGUSR2:
457 ob_debug("Caught signal %d. Reconfiguring.\n", signal);
458 ob_reconfigure();
459 break;
460 case SIGCHLD:
461 /* reap children */
462 while (waitpid(-1, NULL, WNOHANG) > 0);
463 break;
464 default:
465 ob_debug("Caught signal %d. Exiting.\n", signal);
466 /* TERM and INT return a 0 code */
467 ob_exit(!(signal == SIGTERM || signal == SIGINT));
468 }
469 }
470
471 static void print_version()
472 {
473 g_print("Openbox %s\n", PACKAGE_VERSION);
474 g_print(_("Copyright (c)"));
475 g_print(" 2008 Mikael Magnusson\n");
476 g_print(_("Copyright (c)"));
477 g_print(" 2003-2006 Dana Jansens\n\n");
478 g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
479 g_print("This is free software, and you are welcome to redistribute it\n");
480 g_print("under certain conditions. See the file COPYING for details.\n\n");
481 }
482
483 static void print_help()
484 {
485 g_print(_("Syntax: openbox [options]\n"));
486 g_print(_("\nOptions:\n"));
487 g_print(_(" --help Display this help and exit\n"));
488 g_print(_(" --version Display the version and exit\n"));
489 g_print(_(" --replace Replace the currently running window manager\n"));
490 g_print(_(" --sm-disable Disable connection to the session manager\n"));
491 g_print(_("\nPassing messages to a running Openbox instance:\n"));
492 g_print(_(" --reconfigure Reload Openbox's configuration\n"));
493 g_print(_(" --restart Restart Openbox\n"));
494 g_print(_(" --exit Exit Openbox\n"));
495 g_print(_("\nDebugging options:\n"));
496 g_print(_(" --sync Run in synchronous mode\n"));
497 g_print(_(" --debug Display debugging output\n"));
498 g_print(_(" --debug-focus Display debugging output for focus handling\n"));
499 g_print(_(" --debug-xinerama Split the display into fake xinerama screens\n"));
500 g_print(_("\nPlease report bugs at %s\n"), PACKAGE_BUGREPORT);
501 }
502
503 static void remove_args(gint *argc, gchar **argv, gint index, gint num)
504 {
505 gint i;
506
507 for (i = index; i < *argc - num; ++i)
508 argv[i] = argv[i+num];
509 for (; i < *argc; ++i)
510 argv[i] = NULL;
511 *argc -= num;
512 }
513
514 static void parse_env()
515 {
516 /* unset this so we don't pass it on unknowingly */
517 gchar *s = g_strdup("DESKTOP_STARTUP_ID");
518 putenv(s);
519 g_free(s);
520 }
521
522 static void parse_args(gint *argc, gchar **argv)
523 {
524 gint i;
525
526 for (i = 1; i < *argc; ++i) {
527 if (!strcmp(argv[i], "--version")) {
528 print_version();
529 exit(0);
530 }
531 else if (!strcmp(argv[i], "--help")) {
532 print_help();
533 exit(0);
534 }
535 else if (!strcmp(argv[i], "--g-fatal-warnings")) {
536 g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
537 }
538 else if (!strcmp(argv[i], "--replace")) {
539 ob_replace_wm = TRUE;
540 remove_args(argc, argv, i, 1);
541 --i; /* this arg was removed so go back */
542 }
543 else if (!strcmp(argv[i], "--sync")) {
544 xsync = TRUE;
545 }
546 else if (!strcmp(argv[i], "--debug")) {
547 ob_debug_show_output(TRUE);
548 ob_debug_enable(OB_DEBUG_SM, TRUE);
549 ob_debug_enable(OB_DEBUG_APP_BUGS, TRUE);
550 }
551 else if (!strcmp(argv[i], "--debug-focus")) {
552 ob_debug_show_output(TRUE);
553 ob_debug_enable(OB_DEBUG_SM, TRUE);
554 ob_debug_enable(OB_DEBUG_APP_BUGS, TRUE);
555 ob_debug_enable(OB_DEBUG_FOCUS, TRUE);
556 }
557 else if (!strcmp(argv[i], "--debug-xinerama")) {
558 ob_debug_xinerama = TRUE;
559 }
560 else if (!strcmp(argv[i], "--reconfigure")) {
561 remote_control = 1;
562 }
563 else if (!strcmp(argv[i], "--restart")) {
564 remote_control = 2;
565 }
566 else if (!strcmp(argv[i], "--exit")) {
567 remote_control = 3;
568 }
569 else if (!strcmp(argv[i], "--sm-save-file")) {
570 if (i == *argc - 1) /* no args left */
571 /* not translated cuz it's sekret */
572 g_printerr("--sm-save-file requires an argument\n");
573 else {
574 ob_sm_save_file = g_strdup(argv[i+1]);
575 remove_args(argc, argv, i, 2);
576 --i; /* this arg was removed so go back */
577 ob_debug_type(OB_DEBUG_SM, "--sm-save-file %s\n",
578 ob_sm_save_file);
579 }
580 }
581 else if (!strcmp(argv[i], "--sm-client-id")) {
582 if (i == *argc - 1) /* no args left */
583 /* not translated cuz it's sekret */
584 g_printerr("--sm-client-id requires an argument\n");
585 else {
586 ob_sm_id = g_strdup(argv[i+1]);
587 remove_args(argc, argv, i, 2);
588 --i; /* this arg was removed so go back */
589 ob_debug_type(OB_DEBUG_SM, "--sm-client-id %s\n", ob_sm_id);
590 }
591 }
592 else if (!strcmp(argv[i], "--sm-disable")) {
593 ob_sm_use = FALSE;
594 }
595 else if (!strcmp(argv[i], "--sm-no-load")) {
596 ob_sm_restore = FALSE;
597 remove_args(argc, argv, i, 1);
598 --i; /* this arg was removed so go back */
599 }
600 else {
601 /* this is a memleak.. oh well.. heh */
602 gchar *err = g_strdup_printf
603 (_("Invalid command line argument '%s'\n"), argv[i]);
604 ob_exit_with_error(err);
605 }
606 }
607 }
608
609 static Cursor load_cursor(const gchar *name, guint fontval)
610 {
611 Cursor c = None;
612
613 #if USE_XCURSOR
614 c = XcursorLibraryLoadCursor(ob_display, name);
615 #endif
616 if (c == None)
617 c = XCreateFontCursor(ob_display, fontval);
618 return c;
619 }
620
621 void ob_exit_with_error(const gchar *msg)
622 {
623 g_message(msg);
624 session_shutdown(TRUE);
625 exit(EXIT_FAILURE);
626 }
627
628 void ob_restart_other(const gchar *path)
629 {
630 restart_path = g_strdup(path);
631 ob_restart();
632 }
633
634 void ob_restart()
635 {
636 restart = TRUE;
637 ob_exit(0);
638 }
639
640 void ob_reconfigure()
641 {
642 reconfigure = TRUE;
643 ob_exit(0);
644 }
645
646 void ob_exit(gint code)
647 {
648 exitcode = code;
649 ob_main_loop_exit(ob_main_loop);
650 }
651
652 void ob_exit_replace()
653 {
654 exitcode = 0;
655 being_replaced = TRUE;
656 ob_main_loop_exit(ob_main_loop);
657 }
658
659 Cursor ob_cursor(ObCursor cursor)
660 {
661 g_assert(cursor < OB_NUM_CURSORS);
662 return cursors[cursor];
663 }
664
665 KeyCode ob_keycode(ObKey key)
666 {
667 g_assert(key < OB_NUM_KEYS);
668 return keys[key];
669 }
670
671 ObState ob_state()
672 {
673 return state;
674 }
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