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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 "startupnotify.h"
32 #include "focus.h"
33 #include "moveresize.h"
34 #include "frame.h"
35 #include "keyboard.h"
36 #include "mouse.h"
37 #include "extensions.h"
38 #include "menuframe.h"
39 #include "grab.h"
40 #include "group.h"
41 #include "config.h"
42 #include "mainloop.h"
43 #include "gettext.h"
44 #include "parser/parse.h"
45 #include "render/render.h"
46 #include "render/theme.h"
47
48 #ifdef HAVE_FCNTL_H
49 # include <fcntl.h>
50 #endif
51 #ifdef HAVE_SIGNAL_H
52 # include <signal.h>
53 #endif
54 #ifdef HAVE_STDLIB_H
55 # include <stdlib.h>
56 #endif
57 #ifdef HAVE_LOCALE_H
58 # include <locale.h>
59 #endif
60 #ifdef HAVE_SYS_STAT_H
61 # include <sys/stat.h>
62 # include <sys/types.h>
63 #endif
64 #ifdef HAVE_SYS_WAIT_H
65 # include <sys/types.h>
66 # include <sys/wait.h>
67 #endif
68 #ifdef HAVE_UNISTD_H
69 # include <unistd.h>
70 #endif
71 #include <errno.h>
72
73 #include <X11/cursorfont.h>
74 #if USE_XCURSOR
75 #include <X11/Xcursor/Xcursor.h>
76 #endif
77
78 RrInstance *ob_rr_inst;
79 RrTheme *ob_rr_theme;
80 ObMainLoop *ob_main_loop;
81 Display *ob_display;
82 gint ob_screen;
83 gboolean ob_replace_wm = FALSE;
84 gboolean ob_sm_use = TRUE;
85 gchar *ob_sm_id = NULL;
86 gchar *ob_sm_save_file = NULL;
87
88 static ObState state;
89 static gboolean xsync = FALSE;
90 static gboolean reconfigure = FALSE;
91 static gboolean restart = FALSE;
92 static gchar *restart_path = NULL;
93 static Cursor cursors[OB_NUM_CURSORS];
94 static KeyCode keys[OB_NUM_KEYS];
95 static gint exitcode = 0;
96 static guint remote_control = 0;
97 static gboolean being_replaced = FALSE;
98 static gchar *config_type = NULL;
99 static pid_t reconfigure_notify = 0;
100
101 static void signal_handler(gint signal, gpointer data);
102 static void parse_env(char **argv0);
103 static void remove_args(gint *argc, gchar **argv, gint index, gint num);
104 static void parse_args(gint *argc, gchar **argv);
105 static Cursor load_cursor(const gchar *name, guint fontval);
106
107 gint main(gint argc, gchar **argv)
108 {
109 gchar *program_name;
110
111 state = OB_STATE_STARTING;
112
113 /* initialize the locale */
114 if (!setlocale(LC_ALL, ""))
115 g_message("Couldn't set locale from environment.");
116 bindtextdomain(PACKAGE_NAME, LOCALEDIR);
117 bind_textdomain_codeset(PACKAGE_NAME, "UTF-8");
118 textdomain(PACKAGE_NAME);
119
120 if (chdir(g_get_home_dir()) == -1)
121 g_message(_("Unable to change to home directory '%s': %s"),
122 g_get_home_dir(), g_strerror(errno));
123
124 /* parse the environment first, it can change the argv[0] */
125 parse_env(&argv[0]);
126
127 program_name = g_path_get_basename(argv[0]);
128 g_set_prgname(program_name);
129
130 /* parse the command line args */
131 parse_args(&argc, argv);
132
133 if (!remote_control) {
134 parse_paths_startup();
135
136 session_startup(argc, argv);
137 }
138
139
140 ob_display = XOpenDisplay(NULL);
141 if (ob_display == NULL)
142 ob_exit_with_error("Failed to open the display.");
143 if (fcntl(ConnectionNumber(ob_display), F_SETFD, 1) == -1)
144 ob_exit_with_error("Failed to set display as close-on-exec.");
145
146 if (remote_control) {
147 prop_startup();
148
149 /* Send client message telling the OB process to:
150 * remote_control = 1 -> reconfigure
151 * remote_control = 2 -> restart */
152 PROP_MSG(RootWindow(ob_display, ob_screen),
153 openbox_control, remote_control, 0, 0, 0);
154 XCloseDisplay(ob_display);
155 exit(EXIT_SUCCESS);
156 }
157
158 ob_main_loop = ob_main_loop_new(ob_display);
159
160 /* set up signal handler */
161 ob_main_loop_signal_add(ob_main_loop, SIGUSR1, signal_handler, NULL, NULL);
162 ob_main_loop_signal_add(ob_main_loop, SIGUSR2, signal_handler, NULL, NULL);
163 ob_main_loop_signal_add(ob_main_loop, SIGTERM, signal_handler, NULL, NULL);
164 ob_main_loop_signal_add(ob_main_loop, SIGINT, signal_handler, NULL, NULL);
165 ob_main_loop_signal_add(ob_main_loop, SIGHUP, signal_handler, NULL, NULL);
166 ob_main_loop_signal_add(ob_main_loop, SIGPIPE, signal_handler, NULL, NULL);
167 ob_main_loop_signal_add(ob_main_loop, SIGCHLD, signal_handler, NULL, NULL);
168
169 ob_screen = DefaultScreen(ob_display);
170
171 ob_rr_inst = RrInstanceNew(ob_display, ob_screen);
172 if (ob_rr_inst == NULL)
173 ob_exit_with_error("Failed to initialize the render library.");
174
175 XSynchronize(ob_display, xsync);
176
177 /* check for locale support */
178 if (!XSupportsLocale())
179 g_message(_("X server does not support locale."));
180 if (!XSetLocaleModifiers(""))
181 g_message(_("Cannot set locale modifiers for the X server."));
182
183 /* set our error handler */
184 XSetErrorHandler(xerror_handler);
185
186 /* set the DISPLAY environment variable for any lauched children, to the
187 display we're using, so they open in the right place. */
188 putenv(g_strdup_printf("DISPLAY=%s", DisplayString(ob_display)));
189
190 /* create available cursors */
191 cursors[OB_CURSOR_NONE] = None;
192 cursors[OB_CURSOR_POINTER] = load_cursor("left_ptr", XC_left_ptr);
193 cursors[OB_CURSOR_BUSY] = load_cursor("left_ptr_watch", XC_watch);
194 cursors[OB_CURSOR_MOVE] = load_cursor("fleur", XC_fleur);
195 cursors[OB_CURSOR_NORTH] = load_cursor("top_side", XC_top_side);
196 cursors[OB_CURSOR_NORTHEAST] = load_cursor("top_right_corner",
197 XC_top_right_corner);
198 cursors[OB_CURSOR_EAST] = load_cursor("right_side", XC_right_side);
199 cursors[OB_CURSOR_SOUTHEAST] = load_cursor("bottom_right_corner",
200 XC_bottom_right_corner);
201 cursors[OB_CURSOR_SOUTH] = load_cursor("bottom_side", XC_bottom_side);
202 cursors[OB_CURSOR_SOUTHWEST] = load_cursor("bottom_left_corner",
203 XC_bottom_left_corner);
204 cursors[OB_CURSOR_WEST] = load_cursor("left_side", XC_left_side);
205 cursors[OB_CURSOR_NORTHWEST] = load_cursor("top_left_corner",
206 XC_top_left_corner);
207
208 /* create available keycodes */
209 keys[OB_KEY_RETURN] =
210 XKeysymToKeycode(ob_display, XStringToKeysym("Return"));
211 keys[OB_KEY_ESCAPE] =
212 XKeysymToKeycode(ob_display, XStringToKeysym("Escape"));
213 keys[OB_KEY_LEFT] =
214 XKeysymToKeycode(ob_display, XStringToKeysym("Left"));
215 keys[OB_KEY_RIGHT] =
216 XKeysymToKeycode(ob_display, XStringToKeysym("Right"));
217 keys[OB_KEY_UP] =
218 XKeysymToKeycode(ob_display, XStringToKeysym("Up"));
219 keys[OB_KEY_DOWN] =
220 XKeysymToKeycode(ob_display, XStringToKeysym("Down"));
221
222 prop_startup(); /* get atoms values for the display */
223 extensions_query_all(); /* find which extensions are present */
224
225 if (screen_annex(program_name)) { /* it will be ours! */
226 do {
227 {
228 ObParseInst *i;
229 xmlDocPtr doc;
230 xmlNodePtr node;
231
232 modkeys_startup(reconfigure);
233
234 /* startup the parsing so everything can register sections
235 of the rc */
236 i = parse_startup();
237
238 /* start up config which sets up with the parser */
239 config_startup(i);
240
241 /* parse/load user options */
242 if (parse_load_rc(config_type, &doc, &node)) {
243 parse_tree(i, doc, node->xmlChildrenNode);
244 parse_close(doc);
245 } else
246 g_message(_("Unable to find a valid config file, using some simple defaults"));
247
248 if (config_type != NULL)
249 PROP_SETS(RootWindow(ob_display, ob_screen),
250 openbox_config, config_type);
251
252 /* we're done with parsing now, kill it */
253 parse_shutdown(i);
254 }
255
256 /* load the theme specified in the rc file */
257 {
258 RrTheme *theme;
259 if ((theme = RrThemeNew(ob_rr_inst, config_theme,
260 config_font_activewindow,
261 config_font_inactivewindow,
262 config_font_menutitle,
263 config_font_menuitem,
264 config_font_osd)))
265 {
266 RrThemeFree(ob_rr_theme);
267 ob_rr_theme = theme;
268 }
269 if (ob_rr_theme == NULL)
270 ob_exit_with_error("Unable to load a theme.");
271 }
272
273 if (reconfigure) {
274 GList *it;
275
276 /* update all existing windows for the new theme */
277 for (it = client_list; it; it = g_list_next(it)) {
278 ObClient *c = it->data;
279 frame_adjust_theme(c->frame);
280 }
281 }
282 event_startup(reconfigure);
283 /* focus_backup is used for stacking, so this needs to come before
284 anything that calls stacking_add */
285 focus_startup(reconfigure);
286 window_startup(reconfigure);
287 sn_startup(reconfigure);
288 screen_startup(reconfigure);
289 grab_startup(reconfigure);
290 group_startup(reconfigure);
291 client_startup(reconfigure);
292 dock_startup(reconfigure);
293 moveresize_startup(reconfigure);
294 keyboard_startup(reconfigure);
295 mouse_startup(reconfigure);
296 menu_startup(reconfigure);
297 menu_frame_startup(reconfigure);
298
299 if (!reconfigure) {
300 guint32 xid;
301 ObWindow *w;
302
303 /* get all the existing windows */
304 client_manage_all();
305 focus_nothing();
306
307 /* focus what was focused if a wm was already running */
308 if (PROP_GET32(RootWindow(ob_display, ob_screen),
309 net_active_window, window, &xid) &&
310 (w = g_hash_table_lookup(window_map, &xid)) &&
311 WINDOW_IS_CLIENT(w))
312 {
313 client_focus(WINDOW_AS_CLIENT(w));
314 }
315 } else {
316 GList *it;
317
318 /* redecorate all existing windows */
319 for (it = client_list; it; it = g_list_next(it)) {
320 ObClient *c = it->data;
321 /* the new config can change the window's decorations */
322 client_setup_decor_and_functions(c);
323 /* redraw the frames */
324 frame_adjust_area(c->frame, TRUE, TRUE, FALSE);
325 }
326 }
327
328 reconfigure = FALSE;
329
330 state = OB_STATE_RUNNING;
331 ob_main_loop_run(ob_main_loop);
332 state = OB_STATE_EXITING;
333
334 if (!reconfigure) {
335 dock_remove_all();
336 client_unmanage_all();
337 }
338
339 menu_frame_shutdown(reconfigure);
340 menu_shutdown(reconfigure);
341 mouse_shutdown(reconfigure);
342 keyboard_shutdown(reconfigure);
343 moveresize_shutdown(reconfigure);
344 dock_shutdown(reconfigure);
345 client_shutdown(reconfigure);
346 group_shutdown(reconfigure);
347 grab_shutdown(reconfigure);
348 screen_shutdown(reconfigure);
349 focus_shutdown(reconfigure);
350 sn_shutdown(reconfigure);
351 window_shutdown(reconfigure);
352 event_shutdown(reconfigure);
353 config_shutdown();
354 modkeys_shutdown(reconfigure);
355 } while (reconfigure);
356 }
357
358 XSync(ob_display, FALSE);
359
360 RrThemeFree(ob_rr_theme);
361 RrInstanceFree(ob_rr_inst);
362
363 session_shutdown(being_replaced);
364
365 XCloseDisplay(ob_display);
366
367 parse_paths_shutdown();
368
369 if (restart) {
370 if (restart_path != NULL) {
371 gint argcp;
372 gchar **argvp;
373 GError *err = NULL;
374
375 /* run other window manager */
376 if (g_shell_parse_argv(restart_path, &argcp, &argvp, &err)) {
377 execvp(argvp[0], argvp);
378 g_strfreev(argvp);
379 } else {
380 g_message(
381 _("Restart failed to execute new executable '%s': %s"),
382 restart_path, err->message);
383 g_error_free(err);
384 }
385 }
386
387 /* we remove the session arguments from argv, so put them back */
388 if (ob_sm_save_file != NULL || ob_sm_id != NULL) {
389 gchar **nargv;
390 gint i, l;
391
392 l = argc +
393 (ob_sm_save_file != NULL ? 2 : 0) +
394 (ob_sm_id != NULL ? 2 : 0);
395 nargv = g_new0(gchar*, l+1);
396 for (i = 0; i < argc; ++i)
397 nargv[i] = argv[i];
398
399 if (ob_sm_save_file != NULL) {
400 nargv[i++] = g_strdup("--sm-save-file");
401 nargv[i++] = ob_sm_save_file;
402 }
403 if (ob_sm_id != NULL) {
404 nargv[i++] = g_strdup("--sm-client-id");
405 nargv[i++] = ob_sm_id;
406 }
407 g_assert(i == l);
408 argv = nargv;
409 }
410
411 /* re-run me */
412 execvp(argv[0], argv); /* try how we were run */
413 execlp(argv[0], program_name, (gchar*)NULL); /* last resort */
414 }
415
416 /* free stuff passed in from the command line or environment */
417 g_free(ob_sm_save_file);
418 g_free(ob_sm_id);
419 g_free(config_type);
420 g_free(program_name);
421
422 return exitcode;
423 }
424
425 static void signal_handler(gint signal, gpointer data)
426 {
427 switch (signal) {
428 case SIGUSR1:
429 ob_debug("Caught signal %d. Restarting.\n", signal);
430 ob_restart();
431 break;
432 case SIGUSR2:
433 ob_debug("Caught signal %d. Reconfiguring.\n", signal);
434 ob_reconfigure();
435 break;
436 case SIGCHLD:
437 /* reap children */
438 while (waitpid(-1, NULL, WNOHANG) > 0);
439 break;
440 default:
441 ob_debug("Caught signal %d. Exiting.\n", signal);
442 /* TERM and INT return a 0 code */
443 ob_exit(!(signal == SIGTERM || signal == SIGINT));
444 }
445 }
446
447 static void print_version()
448 {
449 g_print("Openbox %s\n", PACKAGE_VERSION);
450 g_print(_("Copyright (c)"));
451 g_print(" 2007 Mikael Magnusson\n");
452 g_print(_("Copyright (c)"));
453 g_print(" 2003-2007 Dana Jansens\n\n");
454 g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
455 g_print("This is free software, and you are welcome to redistribute it\n");
456 g_print("under certain conditions. See the file COPYING for details.\n\n");
457 }
458
459 static void print_help()
460 {
461 g_print(_("Syntax: openbox [options]\n"));
462 g_print(_("\nOptions:\n"));
463 g_print(_(" --config TYPE Specify the configuration profile to use\n"));
464 #ifdef USE_SM
465 g_print(_(" --sm-disable Disable connection to the session manager\n"));
466 #endif
467 g_print(_(" --replace Replace the currently running window manager\n"));
468 g_print(_(" --help Display this help and exit\n"));
469 g_print(_(" --version Display the version and exit\n"));
470 g_print(_("\nPassing messages to a running Openbox instance:\n"));
471 g_print(_(" --reconfigure Reload Openbox's configuration\n"));
472 g_print(_("\nOptions for internal use:\n"));
473 g_print(_(" --sm-save-file FILE Specify file to load a saved session from\n"));
474 g_print(_(" --sm-client-id ID Specify session management ID\n"));
475 g_print(_("\nDebugging options:\n"));
476 g_print(_(" --sync Run in synchronous mode\n"));
477 g_print(_(" --debug Display debugging output\n"));
478 g_print(_(" --debug-focus Display debugging output for focus handling\n"));
479 g_print(_("\nPlease report bugs at %s\n"), PACKAGE_BUGREPORT);
480 }
481
482 static void parse_env(gchar **argv0)
483 {
484 const char *c;
485
486 /* pretend we are this other application */
487 if ((c = getenv("OPENBOX_RESTART_BINARY")))
488 *argv0 = g_strdup(c);
489 unsetenv("OPENBOX_RESTART_BINARY");
490
491 /* notify this application when openbox reconfigures */
492 if ((c = getenv("OPENBOX_RECONFIGURE_NOTIFY_PID")))
493 reconfigure_notify = (pid_t) atol(c);
494 }
495
496 static void remove_args(gint *argc, gchar **argv, gint index, gint num)
497 {
498 gint i;
499
500 for (i = index; i < index + num; ++i)
501 argv[i] = argv[i+num];
502 for (; i < *argc; ++i)
503 argv[i] = NULL;
504 *argc -= num;
505 }
506
507 static void parse_args(gint *argc, gchar **argv)
508 {
509 gint i;
510
511 for (i = 1; i < *argc; ++i) {
512 if (!strcmp(argv[i], "--version")) {
513 print_version();
514 exit(0);
515 } else if (!strcmp(argv[i], "--help")) {
516 print_help();
517 exit(0);
518 } else if (!strcmp(argv[i], "--g-fatal-warnings")) {
519 g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
520 } else if (!strcmp(argv[i], "--replace")) {
521 ob_replace_wm = TRUE;
522 } else if (!strcmp(argv[i], "--sync")) {
523 xsync = TRUE;
524 } else if (!strcmp(argv[i], "--debug")) {
525 ob_debug_show_output(TRUE);
526 ob_debug_enable(OB_DEBUG_SM, TRUE);
527 ob_debug_enable(OB_DEBUG_APP_BUGS, TRUE);
528 } else if (!strcmp(argv[i], "--debug-focus")) {
529 ob_debug_show_output(TRUE);
530 ob_debug_enable(OB_DEBUG_SM, TRUE);
531 ob_debug_enable(OB_DEBUG_APP_BUGS, TRUE);
532 ob_debug_enable(OB_DEBUG_FOCUS, TRUE);
533 } else if (!strcmp(argv[i], "--reconfigure")) {
534 remote_control = 1;
535 /* don't make this do anything if it's not in --help ..
536 } else if (!strcmp(argv[i], "--restart")) {
537 remote_control = 2;
538 */
539 } else if (!strcmp(argv[i], "--config")) {
540 if (i == *argc - 1) /* no args left */
541 g_printerr(_("--config requires an argument\n"));
542 else {
543 config_type = g_strdup(argv[i+1]);
544 ++i;
545 }
546 }
547 #ifdef USE_SM
548 else if (!strcmp(argv[i], "--sm-save-file")) {
549 if (i == *argc - 1) /* no args left */
550 g_printerr(_("--sm-save-file requires an argument\n"));
551 else {
552 ob_sm_save_file = g_strdup(argv[i+1]);
553 remove_args(argc, argv, i, 2);
554 --i; /* this arg was removed so go back */
555 }
556 } else if (!strcmp(argv[i], "--sm-client-id")) {
557 if (i == *argc - 1) /* no args left */
558 g_printerr(_("--sm-client-id requires an argument\n"));
559 else {
560 ob_sm_id = g_strdup(argv[i+1]);
561 remove_args(argc, argv, i, 2);
562 --i; /* this arg was removed so go back */
563 }
564 } else if (!strcmp(argv[i], "--sm-disable")) {
565 ob_sm_use = FALSE;
566 }
567 #endif
568 else {
569 /* this is a memleak.. oh well.. heh */
570 gchar *err = g_strdup_printf
571 ("Invalid command line argument '%s'\n", argv[i]);
572 ob_exit_with_error(err);
573 }
574 }
575 }
576
577 static Cursor load_cursor(const gchar *name, guint fontval)
578 {
579 Cursor c = None;
580
581 #if USE_XCURSOR
582 c = XcursorLibraryLoadCursor(ob_display, name);
583 #endif
584 if (c == None)
585 c = XCreateFontCursor(ob_display, fontval);
586 return c;
587 }
588
589 void ob_exit_with_error(const gchar *msg)
590 {
591 g_critical(msg);
592 session_shutdown(TRUE);
593 exit(EXIT_FAILURE);
594 }
595
596 void ob_restart_other(const gchar *path)
597 {
598 restart_path = g_strdup(path);
599 ob_restart();
600 }
601
602 void ob_restart()
603 {
604 restart = TRUE;
605 ob_exit(0);
606 }
607
608 void ob_reconfigure()
609 {
610 if (reconfigure_notify)
611 kill(reconfigure_notify, SIGUSR2);
612
613 reconfigure = TRUE;
614 ob_exit(0);
615 }
616
617 void ob_exit(gint code)
618 {
619 exitcode = code;
620 ob_main_loop_exit(ob_main_loop);
621 }
622
623 void ob_exit_replace()
624 {
625 exitcode = 0;
626 being_replaced = TRUE;
627 ob_main_loop_exit(ob_main_loop);
628 }
629
630 Cursor ob_cursor(ObCursor cursor)
631 {
632 g_assert(cursor < OB_NUM_CURSORS);
633 return cursors[cursor];
634 }
635
636 KeyCode ob_keycode(ObKey key)
637 {
638 g_assert(key < OB_NUM_KEYS);
639 return keys[key];
640 }
641
642 ObState ob_state()
643 {
644 return state;
645 }
my patches for the openbox window manager
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