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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 "startupnotify.h"
32 #include "focus.h"
33 #include "focus_cycle.h"
34 #include "focus_cycle_indicator.h"
35 #include "focus_cycle_popup.h"
36 #include "moveresize.h"
37 #include "frame.h"
38 #include "keyboard.h"
39 #include "mouse.h"
40 #include "extensions.h"
41 #include "menuframe.h"
42 #include "grab.h"
43 #include "group.h"
44 #include "propwin.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 /* 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,
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, 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 focus_startup(reconfigure);
294 focus_cycle_startup(reconfigure);
295 focus_cycle_indicator_startup(reconfigure);
296 focus_cycle_popup_startup(reconfigure);
297 window_startup(reconfigure);
298 sn_startup(reconfigure);
299 screen_startup(reconfigure);
300 grab_startup(reconfigure);
301 propwin_startup(reconfigure);
302 group_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 /* the new config can change the window's decorations */
334 client_setup_decor_and_functions(c, TRUE);
335 /* redraw the frames */
336 frame_adjust_area(c->frame, TRUE, TRUE, FALSE);
337 }
338 }
339
340 reconfigure = FALSE;
341
342 state = OB_STATE_RUNNING;
343 ob_main_loop_run(ob_main_loop);
344 state = OB_STATE_EXITING;
345
346 if (!reconfigure) {
347 dock_remove_all();
348 client_unmanage_all();
349 }
350
351 menu_shutdown(reconfigure);
352 menu_frame_shutdown(reconfigure);
353 mouse_shutdown(reconfigure);
354 keyboard_shutdown(reconfigure);
355 moveresize_shutdown(reconfigure);
356 dock_shutdown(reconfigure);
357 client_shutdown(reconfigure);
358 group_shutdown(reconfigure);
359 propwin_shutdown(reconfigure);
360 grab_shutdown(reconfigure);
361 screen_shutdown(reconfigure);
362 focus_cycle_popup_shutdown(reconfigure);
363 focus_cycle_indicator_shutdown(reconfigure);
364 focus_cycle_shutdown(reconfigure);
365 focus_shutdown(reconfigure);
366 sn_shutdown(reconfigure);
367 window_shutdown(reconfigure);
368 event_shutdown(reconfigure);
369 config_shutdown();
370 modkeys_shutdown(reconfigure);
371 } while (reconfigure);
372 }
373
374 XSync(ob_display, FALSE);
375
376 RrThemeFree(ob_rr_theme);
377 RrInstanceFree(ob_rr_inst);
378
379 session_shutdown(being_replaced);
380
381 XCloseDisplay(ob_display);
382
383 parse_paths_shutdown();
384
385 if (restart) {
386 if (restart_path != NULL) {
387 gint argcp;
388 gchar **argvp;
389 GError *err = NULL;
390
391 /* run other window manager */
392 if (g_shell_parse_argv(restart_path, &argcp, &argvp, &err)) {
393 execvp(argvp[0], argvp);
394 g_strfreev(argvp);
395 } else {
396 g_message(
397 _("Restart failed to execute new executable '%s': %s"),
398 restart_path, err->message);
399 g_error_free(err);
400 }
401 }
402
403 /* we remove the session arguments from argv, so put them back,
404 also don't restore the session on restart */
405 if (ob_sm_save_file != NULL || ob_sm_id != NULL) {
406 gchar **nargv;
407 gint i, l;
408
409 l = argc + 1 +
410 (ob_sm_save_file != NULL ? 2 : 0) +
411 (ob_sm_id != NULL ? 2 : 0);
412 nargv = g_new0(gchar*, l+1);
413 for (i = 0; i < argc; ++i)
414 nargv[i] = argv[i];
415
416 if (ob_sm_save_file != NULL) {
417 nargv[i++] = g_strdup("--sm-save-file");
418 nargv[i++] = ob_sm_save_file;
419 }
420 if (ob_sm_id != NULL) {
421 nargv[i++] = g_strdup("--sm-client-id");
422 nargv[i++] = ob_sm_id;
423 }
424 nargv[i++] = g_strdup("--sm-no-load");
425 g_assert(i == l);
426 argv = nargv;
427 }
428
429 /* re-run me */
430 execvp(argv[0], argv); /* try how we were run */
431 execlp(argv[0], program_name, (gchar*)NULL); /* last resort */
432 }
433
434 /* free stuff passed in from the command line or environment */
435 g_free(ob_sm_save_file);
436 g_free(ob_sm_id);
437 g_free(program_name);
438
439 return exitcode;
440 }
441
442 static void signal_handler(gint signal, gpointer data)
443 {
444 switch (signal) {
445 case SIGUSR1:
446 ob_debug("Caught signal %d. Restarting.\n", signal);
447 ob_restart();
448 break;
449 case SIGUSR2:
450 ob_debug("Caught signal %d. Reconfiguring.\n", signal);
451 ob_reconfigure();
452 break;
453 case SIGCHLD:
454 /* reap children */
455 while (waitpid(-1, NULL, WNOHANG) > 0);
456 break;
457 default:
458 ob_debug("Caught signal %d. Exiting.\n", signal);
459 /* TERM and INT return a 0 code */
460 ob_exit(!(signal == SIGTERM || signal == SIGINT));
461 }
462 }
463
464 static void print_version()
465 {
466 g_print("Openbox %s\n", PACKAGE_VERSION);
467 g_print(_("Copyright (c)"));
468 g_print(" 2007 Mikael Magnusson\n");
469 g_print(_("Copyright (c)"));
470 g_print(" 2003-2007 Dana Jansens\n\n");
471 g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
472 g_print("This is free software, and you are welcome to redistribute it\n");
473 g_print("under certain conditions. See the file COPYING for details.\n\n");
474 }
475
476 static void print_help()
477 {
478 g_print(_("Syntax: openbox [options]\n"));
479 g_print(_("\nOptions:\n"));
480 g_print(_(" --help Display this help and exit\n"));
481 g_print(_(" --version Display the version and exit\n"));
482 g_print(_(" --replace Replace the currently running window manager\n"));
483 g_print(_(" --sm-disable Disable connection to the session manager\n"));
484 g_print(_("\nPassing messages to a running Openbox instance:\n"));
485 g_print(_(" --reconfigure Reload Openbox's configuration\n"));
486 g_print(_(" --restart Restart Openbox\n"));
487 g_print(_("\nDebugging options:\n"));
488 g_print(_(" --sync Run in synchronous mode\n"));
489 g_print(_(" --debug Display debugging output\n"));
490 g_print(_(" --debug-focus Display debugging output for focus handling\n"));
491 g_print(_(" --debug-xinerama Split the display into fake xinerama screens\n"));
492 g_print(_("\nPlease report bugs at %s\n"), PACKAGE_BUGREPORT);
493 }
494
495 static void remove_args(gint *argc, gchar **argv, gint index, gint num)
496 {
497 gint i;
498
499 for (i = index; i < *argc - num; ++i)
500 argv[i] = argv[i+num];
501 for (; i < *argc; ++i)
502 argv[i] = NULL;
503 *argc -= num;
504 }
505
506 static void parse_env()
507 {
508 /* unset this so we don't pass it on unknowingly */
509 unsetenv("DESKTOP_STARTUP_ID");
510 }
511
512 static void parse_args(gint *argc, gchar **argv)
513 {
514 gint i;
515
516 for (i = 1; i < *argc; ++i) {
517 if (!strcmp(argv[i], "--version")) {
518 print_version();
519 exit(0);
520 }
521 else if (!strcmp(argv[i], "--help")) {
522 print_help();
523 exit(0);
524 }
525 else if (!strcmp(argv[i], "--g-fatal-warnings")) {
526 g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
527 }
528 else if (!strcmp(argv[i], "--replace")) {
529 ob_replace_wm = TRUE;
530 remove_args(argc, argv, i, 1);
531 --i; /* this arg was removed so go back */
532 }
533 else if (!strcmp(argv[i], "--sync")) {
534 xsync = TRUE;
535 }
536 else if (!strcmp(argv[i], "--debug")) {
537 ob_debug_show_output(TRUE);
538 ob_debug_enable(OB_DEBUG_SM, TRUE);
539 ob_debug_enable(OB_DEBUG_APP_BUGS, TRUE);
540 }
541 else if (!strcmp(argv[i], "--debug-focus")) {
542 ob_debug_show_output(TRUE);
543 ob_debug_enable(OB_DEBUG_SM, TRUE);
544 ob_debug_enable(OB_DEBUG_APP_BUGS, TRUE);
545 ob_debug_enable(OB_DEBUG_FOCUS, TRUE);
546 }
547 else if (!strcmp(argv[i], "--debug-xinerama")) {
548 ob_debug_xinerama = TRUE;
549 }
550 else if (!strcmp(argv[i], "--reconfigure")) {
551 remote_control = 1;
552 } else if (!strcmp(argv[i], "--restart")) {
553 remote_control = 2;
554 }
555 else if (!strcmp(argv[i], "--sm-save-file")) {
556 if (i == *argc - 1) /* no args left */
557 /* not translated cuz it's sekret */
558 g_printerr("--sm-save-file requires an argument\n");
559 else {
560 ob_sm_save_file = g_strdup(argv[i+1]);
561 remove_args(argc, argv, i, 2);
562 --i; /* this arg was removed so go back */
563 ob_debug_type(OB_DEBUG_SM, "--sm-save-file %s\n",
564 ob_sm_save_file);
565 }
566 }
567 else if (!strcmp(argv[i], "--sm-client-id")) {
568 if (i == *argc - 1) /* no args left */
569 /* not translated cuz it's sekret */
570 g_printerr("--sm-client-id requires an argument\n");
571 else {
572 ob_sm_id = 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-client-id %s\n", ob_sm_id);
576 }
577 }
578 else if (!strcmp(argv[i], "--sm-disable")) {
579 ob_sm_use = FALSE;
580 }
581 else if (!strcmp(argv[i], "--sm-no-load")) {
582 ob_sm_restore = FALSE;
583 remove_args(argc, argv, i, 1);
584 --i; /* this arg was removed so go back */
585 }
586 else {
587 /* this is a memleak.. oh well.. heh */
588 gchar *err = g_strdup_printf
589 (_("Invalid command line argument '%s'\n"), argv[i]);
590 ob_exit_with_error(err);
591 }
592 }
593 }
594
595 static Cursor load_cursor(const gchar *name, guint fontval)
596 {
597 Cursor c = None;
598
599 #if USE_XCURSOR
600 c = XcursorLibraryLoadCursor(ob_display, name);
601 #endif
602 if (c == None)
603 c = XCreateFontCursor(ob_display, fontval);
604 return c;
605 }
606
607 void ob_exit_with_error(const gchar *msg)
608 {
609 g_message(msg);
610 session_shutdown(TRUE);
611 exit(EXIT_FAILURE);
612 }
613
614 void ob_restart_other(const gchar *path)
615 {
616 restart_path = g_strdup(path);
617 ob_restart();
618 }
619
620 void ob_restart()
621 {
622 restart = TRUE;
623 ob_exit(0);
624 }
625
626 void ob_reconfigure()
627 {
628 reconfigure = TRUE;
629 ob_exit(0);
630 }
631
632 void ob_exit(gint code)
633 {
634 exitcode = code;
635 ob_main_loop_exit(ob_main_loop);
636 }
637
638 void ob_exit_replace()
639 {
640 exitcode = 0;
641 being_replaced = TRUE;
642 ob_main_loop_exit(ob_main_loop);
643 }
644
645 Cursor ob_cursor(ObCursor cursor)
646 {
647 g_assert(cursor < OB_NUM_CURSORS);
648 return cursors[cursor];
649 }
650
651 KeyCode ob_keycode(ObKey key)
652 {
653 g_assert(key < OB_NUM_KEYS);
654 return keys[key];
655 }
656
657 ObState ob_state()
658 {
659 return state;
660 }
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