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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 "screen.h"
29 #include "actions.h"
30 #include "startupnotify.h"
31 #include "focus.h"
32 #include "focus_cycle.h"
33 #include "focus_cycle_indicator.h"
34 #include "focus_cycle_popup.h"
35 #include "moveresize.h"
36 #include "frame.h"
37 #include "keyboard.h"
38 #include "mouse.h"
39 #include "menuframe.h"
40 #include "grab.h"
41 #include "group.h"
42 #include "config.h"
43 #include "ping.h"
44 #include "mainloop.h"
45 #include "gettext.h"
46 #include "parser/parse.h"
47 #include "render/render.h"
48 #include "render/theme.h"
49 #include "obt/display.h"
50 #include "obt/prop.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 RrInstance *ob_rr_inst;
86 RrTheme *ob_rr_theme;
87 ObtMainLoop *ob_main_loop;
88 gint ob_screen;
89 gboolean ob_replace_wm = FALSE;
90 gboolean ob_sm_use = TRUE;
91 gchar *ob_sm_id = NULL;
92 gchar *ob_sm_save_file = NULL;
93 gboolean ob_sm_restore = TRUE;
94 gboolean ob_debug_xinerama = FALSE;
95
96 static ObState state;
97 static gboolean xsync = FALSE;
98 static gboolean reconfigure = FALSE;
99 static gboolean restart = FALSE;
100 static gchar *restart_path = NULL;
101 static Cursor cursors[OB_NUM_CURSORS];
102 static KeyCode keys[OB_NUM_KEYS];
103 static gint exitcode = 0;
104 static guint remote_control = 0;
105 static gboolean being_replaced = FALSE;
106
107 static void signal_handler(gint signal, gpointer data);
108 static void remove_args(gint *argc, gchar **argv, gint index, gint num);
109 static void parse_env();
110 static void parse_args(gint *argc, gchar **argv);
111 static Cursor load_cursor(const gchar *name, guint fontval);
112
113 gint main(gint argc, gchar **argv)
114 {
115 gchar *program_name;
116
117 state = OB_STATE_STARTING;
118
119 /* initialize the locale */
120 if (!setlocale(LC_ALL, ""))
121 g_message("Couldn't set locale from environment.");
122 bindtextdomain(PACKAGE_NAME, LOCALEDIR);
123 bind_textdomain_codeset(PACKAGE_NAME, "UTF-8");
124 textdomain(PACKAGE_NAME);
125
126 if (chdir(g_get_home_dir()) == -1)
127 g_message(_("Unable to change to home directory '%s': %s"),
128 g_get_home_dir(), g_strerror(errno));
129
130 /* parse the command line args, which can change the argv[0] */
131 parse_args(&argc, argv);
132 /* parse the environment variables */
133 parse_env();
134
135 program_name = g_path_get_basename(argv[0]);
136 g_set_prgname(program_name);
137
138 if (!remote_control) {
139 parse_paths_startup();
140
141 session_startup(argc, argv);
142 }
143
144 if (!obt_display_open(NULL))
145 ob_exit_with_error(_("Failed to open the display from the DISPLAY environment variable."));
146
147 if (remote_control) {
148 /* Send client message telling the OB process to:
149 * remote_control = 1 -> reconfigure
150 * remote_control = 2 -> restart */
151 OBT_PROP_MSG(ob_screen, RootWindow(obt_display, ob_screen),
152 OB_CONTROL, remote_control, 0, 0, 0, 0);
153 obt_display_close(obt_display);
154 exit(EXIT_SUCCESS);
155 }
156
157 ob_main_loop = obt_main_loop_new(obt_display);
158
159 /* set up signal handler */
160 obt_main_loop_signal_add(ob_main_loop, SIGUSR1, signal_handler, NULL,NULL);
161 obt_main_loop_signal_add(ob_main_loop, SIGUSR2, signal_handler, NULL,NULL);
162 obt_main_loop_signal_add(ob_main_loop, SIGTERM, signal_handler, NULL,NULL);
163 obt_main_loop_signal_add(ob_main_loop, SIGINT, signal_handler, NULL,NULL);
164 obt_main_loop_signal_add(ob_main_loop, SIGHUP, signal_handler, NULL,NULL);
165 obt_main_loop_signal_add(ob_main_loop, SIGPIPE, signal_handler, NULL,NULL);
166 obt_main_loop_signal_add(ob_main_loop, SIGCHLD, signal_handler, NULL,NULL);
167
168 ob_screen = DefaultScreen(obt_display);
169
170 ob_rr_inst = RrInstanceNew(obt_display, ob_screen);
171 if (ob_rr_inst == NULL)
172 ob_exit_with_error(_("Failed to initialize the obrender library."));
173
174 XSynchronize(obt_display, xsync);
175
176 /* check for locale support */
177 if (!XSupportsLocale())
178 g_message(_("X server does not support locale."));
179 if (!XSetLocaleModifiers(""))
180 g_message(_("Cannot set locale modifiers for the X server."));
181
182 /* set the DISPLAY environment variable for any lauched children, to the
183 display we're using, so they open in the right place. */
184 putenv(g_strdup_printf("DISPLAY=%s", DisplayString(obt_display)));
185
186 /* create available cursors */
187 cursors[OB_CURSOR_NONE] = None;
188 cursors[OB_CURSOR_POINTER] = load_cursor("left_ptr", XC_left_ptr);
189 cursors[OB_CURSOR_BUSYPOINTER] = load_cursor("left_ptr_watch",XC_left_ptr);
190 cursors[OB_CURSOR_BUSY] = load_cursor("watch", XC_watch);
191 cursors[OB_CURSOR_MOVE] = load_cursor("fleur", XC_fleur);
192 cursors[OB_CURSOR_NORTH] = load_cursor("top_side", XC_top_side);
193 cursors[OB_CURSOR_NORTHEAST] = load_cursor("top_right_corner",
194 XC_top_right_corner);
195 cursors[OB_CURSOR_EAST] = load_cursor("right_side", XC_right_side);
196 cursors[OB_CURSOR_SOUTHEAST] = load_cursor("bottom_right_corner",
197 XC_bottom_right_corner);
198 cursors[OB_CURSOR_SOUTH] = load_cursor("bottom_side", XC_bottom_side);
199 cursors[OB_CURSOR_SOUTHWEST] = load_cursor("bottom_left_corner",
200 XC_bottom_left_corner);
201 cursors[OB_CURSOR_WEST] = load_cursor("left_side", XC_left_side);
202 cursors[OB_CURSOR_NORTHWEST] = load_cursor("top_left_corner",
203 XC_top_left_corner);
204
205 if (screen_annex()) { /* it will be ours! */
206 do {
207 modkeys_startup(reconfigure);
208
209 /* get the keycodes for keys we use */
210 keys[OB_KEY_RETURN] = modkeys_sym_to_code(XK_Return);
211 keys[OB_KEY_ESCAPE] = modkeys_sym_to_code(XK_Escape);
212 keys[OB_KEY_LEFT] = modkeys_sym_to_code(XK_Left);
213 keys[OB_KEY_RIGHT] = modkeys_sym_to_code(XK_Right);
214 keys[OB_KEY_UP] = modkeys_sym_to_code(XK_Up);
215 keys[OB_KEY_DOWN] = modkeys_sym_to_code(XK_Down);
216
217 {
218 ObParseInst *i;
219 xmlDocPtr doc;
220 xmlNodePtr node;
221
222 /* startup the parsing so everything can register sections
223 of the rc */
224 i = parse_startup();
225
226 /* register all the available actions */
227 actions_startup(reconfigure);
228 /* start up config which sets up with the parser */
229 config_startup(i);
230
231 /* parse/load user options */
232 if (parse_load_rc(NULL, &doc, &node)) {
233 parse_tree(i, doc, node->xmlChildrenNode);
234 parse_close(doc);
235 } else
236 g_message(_("Unable to find a valid config file, using some simple defaults"));
237
238 /*
239 if (config_type != NULL)
240 PROP_SETS(RootWindow(obt_display, ob_screen),
241 ob_config, config_type);
242 */
243
244 /* we're done with parsing now, kill it */
245 parse_shutdown(i);
246 }
247
248 /* load the theme specified in the rc file */
249 {
250 RrTheme *theme;
251 if ((theme = RrThemeNew(ob_rr_inst, config_theme, TRUE,
252 config_font_activewindow,
253 config_font_inactivewindow,
254 config_font_menutitle,
255 config_font_menuitem,
256 config_font_osd)))
257 {
258 RrThemeFree(ob_rr_theme);
259 ob_rr_theme = theme;
260 }
261 if (ob_rr_theme == NULL)
262 ob_exit_with_error(_("Unable to load a theme."));
263
264 OBT_PROP_SETS(RootWindow(obt_display, ob_screen),
265 OB_THEME, utf8, ob_rr_theme->name);
266 }
267
268 if (reconfigure) {
269 GList *it;
270
271 /* update all existing windows for the new theme */
272 for (it = client_list; it; it = g_list_next(it)) {
273 ObClient *c = it->data;
274 frame_adjust_theme(c->frame);
275 }
276 }
277 event_startup(reconfigure);
278 /* focus_backup is used for stacking, so this needs to come before
279 anything that calls stacking_add */
280 sn_startup(reconfigure);
281 window_startup(reconfigure);
282 focus_startup(reconfigure);
283 focus_cycle_startup(reconfigure);
284 focus_cycle_indicator_startup(reconfigure);
285 focus_cycle_popup_startup(reconfigure);
286 screen_startup(reconfigure);
287 grab_startup(reconfigure);
288 group_startup(reconfigure);
289 ping_startup(reconfigure);
290 client_startup(reconfigure);
291 dock_startup(reconfigure);
292 moveresize_startup(reconfigure);
293 keyboard_startup(reconfigure);
294 mouse_startup(reconfigure);
295 menu_frame_startup(reconfigure);
296 menu_startup(reconfigure);
297
298 if (!reconfigure) {
299 guint32 xid;
300 ObWindow *w;
301
302 /* get all the existing windows */
303 client_manage_all();
304 focus_nothing();
305
306 /* focus what was focused if a wm was already running */
307 if (OBT_PROP_GET32(RootWindow(obt_display, ob_screen),
308 NET_ACTIVE_WINDOW, WINDOW, &xid) &&
309 (w = g_hash_table_lookup(window_map, &xid)) &&
310 WINDOW_IS_CLIENT(w))
311 {
312 client_focus(WINDOW_AS_CLIENT(w));
313 }
314 } else {
315 GList *it;
316
317 /* redecorate all existing windows */
318 for (it = client_list; it; it = g_list_next(it)) {
319 ObClient *c = it->data;
320
321 /* the new config can change the window's decorations */
322 client_setup_decor_and_functions(c, FALSE);
323 /* redraw the frames */
324 frame_adjust_area(c->frame, TRUE, TRUE, FALSE);
325 /* the decor sizes may have changed, so the windows may
326 end up in new positions */
327 client_reconfigure(c, FALSE);
328 }
329 }
330
331 reconfigure = FALSE;
332
333 state = OB_STATE_RUNNING;
334 obt_main_loop_run(ob_main_loop);
335 state = OB_STATE_EXITING;
336
337 if (!reconfigure) {
338 dock_remove_all();
339 client_unmanage_all();
340 }
341
342 menu_shutdown(reconfigure);
343 menu_frame_shutdown(reconfigure);
344 mouse_shutdown(reconfigure);
345 keyboard_shutdown(reconfigure);
346 moveresize_shutdown(reconfigure);
347 dock_shutdown(reconfigure);
348 client_shutdown(reconfigure);
349 ping_shutdown(reconfigure);
350 group_shutdown(reconfigure);
351 grab_shutdown(reconfigure);
352 screen_shutdown(reconfigure);
353 focus_cycle_popup_shutdown(reconfigure);
354 focus_cycle_indicator_shutdown(reconfigure);
355 focus_cycle_shutdown(reconfigure);
356 focus_shutdown(reconfigure);
357 window_shutdown(reconfigure);
358 sn_shutdown(reconfigure);
359 event_shutdown(reconfigure);
360 config_shutdown();
361 actions_shutdown(reconfigure);
362 modkeys_shutdown(reconfigure);
363 } while (reconfigure);
364 }
365
366 XSync(obt_display, FALSE);
367
368 RrThemeFree(ob_rr_theme);
369 RrInstanceFree(ob_rr_inst);
370
371 session_shutdown(being_replaced);
372
373 obt_display_close(obt_display);
374
375 parse_paths_shutdown();
376
377 if (restart) {
378 if (restart_path != NULL) {
379 gint argcp;
380 gchar **argvp;
381 GError *err = NULL;
382
383 /* run other window manager */
384 if (g_shell_parse_argv(restart_path, &argcp, &argvp, &err)) {
385 execvp(argvp[0], argvp);
386 g_strfreev(argvp);
387 } else {
388 g_message(
389 _("Restart failed to execute new executable '%s': %s"),
390 restart_path, err->message);
391 g_error_free(err);
392 }
393 }
394
395 /* we remove the session arguments from argv, so put them back,
396 also don't restore the session on restart */
397 if (ob_sm_save_file != NULL || ob_sm_id != NULL) {
398 gchar **nargv;
399 gint i, l;
400
401 l = argc + 1 +
402 (ob_sm_save_file != NULL ? 2 : 0) +
403 (ob_sm_id != NULL ? 2 : 0);
404 nargv = g_new0(gchar*, l+1);
405 for (i = 0; i < argc; ++i)
406 nargv[i] = argv[i];
407
408 if (ob_sm_save_file != NULL) {
409 nargv[i++] = g_strdup("--sm-save-file");
410 nargv[i++] = ob_sm_save_file;
411 }
412 if (ob_sm_id != NULL) {
413 nargv[i++] = g_strdup("--sm-client-id");
414 nargv[i++] = ob_sm_id;
415 }
416 nargv[i++] = g_strdup("--sm-no-load");
417 g_assert(i == l);
418 argv = nargv;
419 }
420
421 /* re-run me */
422 execvp(argv[0], argv); /* try how we were run */
423 execlp(argv[0], program_name, (gchar*)NULL); /* last resort */
424 }
425
426 /* free stuff passed in from the command line or environment */
427 g_free(ob_sm_save_file);
428 g_free(ob_sm_id);
429 g_free(program_name);
430
431 return exitcode;
432 }
433
434 static void signal_handler(gint signal, gpointer data)
435 {
436 switch (signal) {
437 case SIGUSR1:
438 ob_debug("Caught signal %d. Restarting.\n", signal);
439 ob_restart();
440 break;
441 case SIGUSR2:
442 ob_debug("Caught signal %d. Reconfiguring.\n", signal);
443 ob_reconfigure();
444 break;
445 case SIGCHLD:
446 /* reap children */
447 while (waitpid(-1, NULL, WNOHANG) > 0);
448 break;
449 default:
450 ob_debug("Caught signal %d. Exiting.\n", signal);
451 /* TERM and INT return a 0 code */
452 ob_exit(!(signal == SIGTERM || signal == SIGINT));
453 }
454 }
455
456 static void print_version()
457 {
458 g_print("Openbox %s\n", PACKAGE_VERSION);
459 g_print(_("Copyright (c)"));
460 g_print(" 2008 Mikael Magnusson\n");
461 g_print(_("Copyright (c)"));
462 g_print(" 2003-2006 Dana Jansens\n\n");
463 g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
464 g_print("This is free software, and you are welcome to redistribute it\n");
465 g_print("under certain conditions. See the file COPYING for details.\n\n");
466 }
467
468 static void print_help()
469 {
470 g_print(_("Syntax: openbox [options]\n"));
471 g_print(_("\nOptions:\n"));
472 g_print(_(" --help Display this help and exit\n"));
473 g_print(_(" --version Display the version and exit\n"));
474 g_print(_(" --replace Replace the currently running window manager\n"));
475 g_print(_(" --sm-disable Disable connection to the session manager\n"));
476 g_print(_("\nPassing messages to a running Openbox instance:\n"));
477 g_print(_(" --reconfigure Reload Openbox's configuration\n"));
478 g_print(_(" --restart Restart Openbox\n"));
479 g_print(_(" --exit Exit Openbox\n"));
480 g_print(_("\nDebugging options:\n"));
481 g_print(_(" --sync Run in synchronous mode\n"));
482 g_print(_(" --debug Display debugging output\n"));
483 g_print(_(" --debug-focus Display debugging output for focus handling\n"));
484 g_print(_(" --debug-xinerama Split the display into fake xinerama screens\n"));
485 g_print(_("\nPlease report bugs at %s\n"), PACKAGE_BUGREPORT);
486 }
487
488 static void remove_args(gint *argc, gchar **argv, gint index, gint num)
489 {
490 gint i;
491
492 for (i = index; i < *argc - num; ++i)
493 argv[i] = argv[i+num];
494 for (; i < *argc; ++i)
495 argv[i] = NULL;
496 *argc -= num;
497 }
498
499 static void parse_env()
500 {
501 /* unset this so we don't pass it on unknowingly */
502 gchar *s = g_strdup("DESKTOP_STARTUP_ID");
503 putenv(s);
504 g_free(s);
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 }
516 else if (!strcmp(argv[i], "--help")) {
517 print_help();
518 exit(0);
519 }
520 else if (!strcmp(argv[i], "--g-fatal-warnings")) {
521 g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
522 }
523 else if (!strcmp(argv[i], "--replace")) {
524 ob_replace_wm = TRUE;
525 remove_args(argc, argv, i, 1);
526 --i; /* this arg was removed so go back */
527 }
528 else if (!strcmp(argv[i], "--sync")) {
529 xsync = TRUE;
530 }
531 else if (!strcmp(argv[i], "--debug")) {
532 ob_debug_show_output(TRUE);
533 ob_debug_enable(OB_DEBUG_SM, TRUE);
534 ob_debug_enable(OB_DEBUG_APP_BUGS, TRUE);
535 }
536 else if (!strcmp(argv[i], "--debug-focus")) {
537 ob_debug_show_output(TRUE);
538 ob_debug_enable(OB_DEBUG_SM, TRUE);
539 ob_debug_enable(OB_DEBUG_APP_BUGS, TRUE);
540 ob_debug_enable(OB_DEBUG_FOCUS, TRUE);
541 }
542 else if (!strcmp(argv[i], "--debug-xinerama")) {
543 ob_debug_xinerama = TRUE;
544 }
545 else if (!strcmp(argv[i], "--reconfigure")) {
546 remote_control = 1;
547 }
548 else if (!strcmp(argv[i], "--restart")) {
549 remote_control = 2;
550 }
551 else if (!strcmp(argv[i], "--exit")) {
552 remote_control = 3;
553 }
554 else if (!strcmp(argv[i], "--sm-save-file")) {
555 if (i == *argc - 1) /* no args left */
556 /* not translated cuz it's sekret */
557 g_printerr("--sm-save-file requires an argument\n");
558 else {
559 ob_sm_save_file = g_strdup(argv[i+1]);
560 remove_args(argc, argv, i, 2);
561 --i; /* this arg was removed so go back */
562 ob_debug_type(OB_DEBUG_SM, "--sm-save-file %s\n",
563 ob_sm_save_file);
564 }
565 }
566 else if (!strcmp(argv[i], "--sm-client-id")) {
567 if (i == *argc - 1) /* no args left */
568 /* not translated cuz it's sekret */
569 g_printerr("--sm-client-id requires an argument\n");
570 else {
571 ob_sm_id = g_strdup(argv[i+1]);
572 remove_args(argc, argv, i, 2);
573 --i; /* this arg was removed so go back */
574 ob_debug_type(OB_DEBUG_SM, "--sm-client-id %s\n", ob_sm_id);
575 }
576 }
577 else if (!strcmp(argv[i], "--sm-disable")) {
578 ob_sm_use = FALSE;
579 }
580 else if (!strcmp(argv[i], "--sm-no-load")) {
581 ob_sm_restore = FALSE;
582 remove_args(argc, argv, i, 1);
583 --i; /* this arg was removed so go back */
584 }
585 else {
586 /* this is a memleak.. oh well.. heh */
587 gchar *err = g_strdup_printf
588 (_("Invalid command line argument '%s'\n"), argv[i]);
589 ob_exit_with_error(err);
590 }
591 }
592 }
593
594 static Cursor load_cursor(const gchar *name, guint fontval)
595 {
596 Cursor c = None;
597
598 #if USE_XCURSOR
599 c = XcursorLibraryLoadCursor(obt_display, name);
600 #endif
601 if (c == None)
602 c = XCreateFontCursor(obt_display, fontval);
603 return c;
604 }
605
606 void ob_exit_with_error(const gchar *msg)
607 {
608 g_message(msg);
609 session_shutdown(TRUE);
610 exit(EXIT_FAILURE);
611 }
612
613 void ob_restart_other(const gchar *path)
614 {
615 restart_path = g_strdup(path);
616 ob_restart();
617 }
618
619 void ob_restart()
620 {
621 restart = TRUE;
622 ob_exit(0);
623 }
624
625 void ob_reconfigure()
626 {
627 reconfigure = TRUE;
628 ob_exit(0);
629 }
630
631 void ob_exit(gint code)
632 {
633 exitcode = code;
634 obt_main_loop_exit(ob_main_loop);
635 }
636
637 void ob_exit_replace()
638 {
639 exitcode = 0;
640 being_replaced = TRUE;
641 obt_main_loop_exit(ob_main_loop);
642 }
643
644 Cursor ob_cursor(ObCursor cursor)
645 {
646 g_assert(cursor < OB_NUM_CURSORS);
647 return cursors[cursor];
648 }
649
650 KeyCode ob_keycode(ObKey key)
651 {
652 g_assert(key < OB_NUM_KEYS);
653 return keys[key];
654 }
655
656 ObState ob_state()
657 {
658 return state;
659 }
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