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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 "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 "mainloop.h"
47 #include "gettext.h"
48 #include "parser/parse.h"
49 #include "render/render.h"
50 #include "render/theme.h"
51
52 #ifdef HAVE_FCNTL_H
53 # include <fcntl.h>
54 #endif
55 #ifdef HAVE_SIGNAL_H
56 # include <signal.h>
57 #endif
58 #ifdef HAVE_STDLIB_H
59 # include <stdlib.h>
60 #endif
61 #ifdef HAVE_LOCALE_H
62 # include <locale.h>
63 #endif
64 #ifdef HAVE_SYS_STAT_H
65 # include <sys/stat.h>
66 # include <sys/types.h>
67 #endif
68 #ifdef HAVE_SYS_WAIT_H
69 # include <sys/types.h>
70 # include <sys/wait.h>
71 #endif
72 #ifdef HAVE_UNISTD_H
73 # include <unistd.h>
74 #endif
75 #include <errno.h>
76
77 #include <X11/cursorfont.h>
78 #if USE_XCURSOR
79 #include <X11/Xcursor/Xcursor.h>
80 #endif
81
82 #include <X11/Xlib.h>
83 #include <X11/keysym.h>
84
85
86 RrInstance *ob_rr_inst;
87 RrTheme *ob_rr_theme;
88 ObMainLoop *ob_main_loop;
89 Display *ob_display;
90 gint ob_screen;
91 gboolean ob_replace_wm = FALSE;
92 gboolean ob_sm_use = TRUE;
93 gchar *ob_sm_id = NULL;
94 gchar *ob_sm_save_file = NULL;
95 gboolean ob_sm_restore = TRUE;
96 gboolean ob_debug_xinerama = FALSE;
97
98 static ObState state;
99 static gboolean xsync = FALSE;
100 static gboolean reconfigure = FALSE;
101 static gboolean restart = FALSE;
102 static gchar *restart_path = NULL;
103 static Cursor cursors[OB_NUM_CURSORS];
104 static KeyCode keys[OB_NUM_KEYS];
105 static gint exitcode = 0;
106 static guint remote_control = 0;
107 static gboolean being_replaced = FALSE;
108
109 static void signal_handler(gint signal, gpointer data);
110 static void remove_args(gint *argc, gchar **argv, gint index, gint num);
111 static void parse_env();
112 static void parse_args(gint *argc, gchar **argv);
113 static Cursor load_cursor(const gchar *name, guint fontval);
114
115 gint main(gint argc, gchar **argv)
116 {
117 gchar *program_name;
118
119 state = OB_STATE_STARTING;
120
121 /* initialize the locale */
122 if (!setlocale(LC_ALL, ""))
123 g_message("Couldn't set locale from environment.");
124 bindtextdomain(PACKAGE_NAME, LOCALEDIR);
125 bind_textdomain_codeset(PACKAGE_NAME, "UTF-8");
126 textdomain(PACKAGE_NAME);
127
128 if (chdir(g_get_home_dir()) == -1)
129 g_message(_("Unable to change to home directory '%s': %s"),
130 g_get_home_dir(), g_strerror(errno));
131
132 /* parse the command line args, which can change the argv[0] */
133 parse_args(&argc, argv);
134 /* parse the environment variables */
135 parse_env();
136
137 program_name = g_path_get_basename(argv[0]);
138 g_set_prgname(program_name);
139
140 if (!remote_control) {
141 parse_paths_startup();
142
143 session_startup(argc, argv);
144 }
145
146
147 ob_display = XOpenDisplay(NULL);
148 if (ob_display == NULL)
149 ob_exit_with_error(_("Failed to open the display from the DISPLAY environment variable."));
150 if (fcntl(ConnectionNumber(ob_display), F_SETFD, 1) == -1)
151 ob_exit_with_error("Failed to set display as close-on-exec");
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 XCloseDisplay(ob_display);
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 focus_startup(reconfigure);
296 focus_cycle_startup(reconfigure);
297 focus_cycle_indicator_startup(reconfigure);
298 focus_cycle_popup_startup(reconfigure);
299 window_startup(reconfigure);
300 sn_startup(reconfigure);
301 screen_startup(reconfigure);
302 grab_startup(reconfigure);
303 group_startup(reconfigure);
304 client_startup(reconfigure);
305 dock_startup(reconfigure);
306 moveresize_startup(reconfigure);
307 keyboard_startup(reconfigure);
308 mouse_startup(reconfigure);
309 menu_frame_startup(reconfigure);
310 menu_startup(reconfigure);
311
312 if (!reconfigure) {
313 guint32 xid;
314 ObWindow *w;
315
316 /* get all the existing windows */
317 client_manage_all();
318 focus_nothing();
319
320 /* focus what was focused if a wm was already running */
321 if (PROP_GET32(RootWindow(ob_display, ob_screen),
322 net_active_window, window, &xid) &&
323 (w = g_hash_table_lookup(window_map, &xid)) &&
324 WINDOW_IS_CLIENT(w))
325 {
326 client_focus(WINDOW_AS_CLIENT(w));
327 }
328 } else {
329 GList *it;
330
331 /* redecorate all existing windows */
332 for (it = client_list; it; it = g_list_next(it)) {
333 ObClient *c = it->data;
334
335 /* the new config can change the window's decorations */
336 client_setup_decor_and_functions(c, FALSE);
337 /* redraw the frames */
338 frame_adjust_area(c->frame, TRUE, TRUE, FALSE);
339 /* the decor sizes may have changed, so the windows may
340 end up in new positions */
341 client_reconfigure(c, FALSE);
342 }
343 }
344
345 reconfigure = FALSE;
346
347 state = OB_STATE_RUNNING;
348 ob_main_loop_run(ob_main_loop);
349 state = OB_STATE_EXITING;
350
351 if (!reconfigure) {
352 dock_remove_all();
353 client_unmanage_all();
354 }
355
356 menu_shutdown(reconfigure);
357 menu_frame_shutdown(reconfigure);
358 mouse_shutdown(reconfigure);
359 keyboard_shutdown(reconfigure);
360 moveresize_shutdown(reconfigure);
361 dock_shutdown(reconfigure);
362 client_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 sn_shutdown(reconfigure);
371 window_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 XCloseDisplay(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(" 2007 Mikael Magnusson\n");
474 g_print(_("Copyright (c)"));
475 g_print(" 2003-2007 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 putenv("DESKTOP_STARTUP_ID");
516 }
517
518 static void parse_args(gint *argc, gchar **argv)
519 {
520 gint i;
521
522 for (i = 1; i < *argc; ++i) {
523 if (!strcmp(argv[i], "--version")) {
524 print_version();
525 exit(0);
526 }
527 else if (!strcmp(argv[i], "--help")) {
528 print_help();
529 exit(0);
530 }
531 else if (!strcmp(argv[i], "--g-fatal-warnings")) {
532 g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
533 }
534 else if (!strcmp(argv[i], "--replace")) {
535 ob_replace_wm = TRUE;
536 remove_args(argc, argv, i, 1);
537 --i; /* this arg was removed so go back */
538 }
539 else if (!strcmp(argv[i], "--sync")) {
540 xsync = TRUE;
541 }
542 else if (!strcmp(argv[i], "--debug")) {
543 ob_debug_show_output(TRUE);
544 ob_debug_enable(OB_DEBUG_SM, TRUE);
545 ob_debug_enable(OB_DEBUG_APP_BUGS, TRUE);
546 }
547 else if (!strcmp(argv[i], "--debug-focus")) {
548 ob_debug_show_output(TRUE);
549 ob_debug_enable(OB_DEBUG_SM, TRUE);
550 ob_debug_enable(OB_DEBUG_APP_BUGS, TRUE);
551 ob_debug_enable(OB_DEBUG_FOCUS, TRUE);
552 }
553 else if (!strcmp(argv[i], "--debug-xinerama")) {
554 ob_debug_xinerama = TRUE;
555 }
556 else if (!strcmp(argv[i], "--reconfigure")) {
557 remote_control = 1;
558 }
559 else if (!strcmp(argv[i], "--restart")) {
560 remote_control = 2;
561 }
562 else if (!strcmp(argv[i], "--exit")) {
563 remote_control = 3;
564 }
565 else if (!strcmp(argv[i], "--sm-save-file")) {
566 if (i == *argc - 1) /* no args left */
567 /* not translated cuz it's sekret */
568 g_printerr("--sm-save-file requires an argument\n");
569 else {
570 ob_sm_save_file = g_strdup(argv[i+1]);
571 remove_args(argc, argv, i, 2);
572 --i; /* this arg was removed so go back */
573 ob_debug_type(OB_DEBUG_SM, "--sm-save-file %s\n",
574 ob_sm_save_file);
575 }
576 }
577 else if (!strcmp(argv[i], "--sm-client-id")) {
578 if (i == *argc - 1) /* no args left */
579 /* not translated cuz it's sekret */
580 g_printerr("--sm-client-id requires an argument\n");
581 else {
582 ob_sm_id = g_strdup(argv[i+1]);
583 remove_args(argc, argv, i, 2);
584 --i; /* this arg was removed so go back */
585 ob_debug_type(OB_DEBUG_SM, "--sm-client-id %s\n", ob_sm_id);
586 }
587 }
588 else if (!strcmp(argv[i], "--sm-disable")) {
589 ob_sm_use = FALSE;
590 }
591 else if (!strcmp(argv[i], "--sm-no-load")) {
592 ob_sm_restore = FALSE;
593 remove_args(argc, argv, i, 1);
594 --i; /* this arg was removed so go back */
595 }
596 else {
597 /* this is a memleak.. oh well.. heh */
598 gchar *err = g_strdup_printf
599 (_("Invalid command line argument '%s'\n"), argv[i]);
600 ob_exit_with_error(err);
601 }
602 }
603 }
604
605 static Cursor load_cursor(const gchar *name, guint fontval)
606 {
607 Cursor c = None;
608
609 #if USE_XCURSOR
610 c = XcursorLibraryLoadCursor(ob_display, name);
611 #endif
612 if (c == None)
613 c = XCreateFontCursor(ob_display, fontval);
614 return c;
615 }
616
617 void ob_exit_with_error(const gchar *msg)
618 {
619 g_message(msg);
620 session_shutdown(TRUE);
621 exit(EXIT_FAILURE);
622 }
623
624 void ob_restart_other(const gchar *path)
625 {
626 restart_path = g_strdup(path);
627 ob_restart();
628 }
629
630 void ob_restart()
631 {
632 restart = TRUE;
633 ob_exit(0);
634 }
635
636 void ob_reconfigure()
637 {
638 reconfigure = TRUE;
639 ob_exit(0);
640 }
641
642 void ob_exit(gint code)
643 {
644 exitcode = code;
645 ob_main_loop_exit(ob_main_loop);
646 }
647
648 void ob_exit_replace()
649 {
650 exitcode = 0;
651 being_replaced = TRUE;
652 ob_main_loop_exit(ob_main_loop);
653 }
654
655 Cursor ob_cursor(ObCursor cursor)
656 {
657 g_assert(cursor < OB_NUM_CURSORS);
658 return cursors[cursor];
659 }
660
661 KeyCode ob_keycode(ObKey key)
662 {
663 g_assert(key < OB_NUM_KEYS);
664 return keys[key];
665 }
666
667 ObState ob_state()
668 {
669 return state;
670 }
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