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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 "event.h"
25 #include "menu.h"
26 #include "client.h"
27 #include "screen.h"
28 #include "actions.h"
29 #include "startupnotify.h"
30 #include "focus.h"
31 #include "focus_cycle.h"
32 #include "focus_cycle_indicator.h"
33 #include "focus_cycle_popup.h"
34 #include "moveresize.h"
35 #include "frame.h"
36 #include "keyboard.h"
37 #include "mouse.h"
38 #include "menuframe.h"
39 #include "grab.h"
40 #include "group.h"
41 #include "config.h"
42 #include "ping.h"
43 #include "gettext.h"
44 #include "render/render.h"
45 #include "render/theme.h"
46 #include "obt/display.h"
47 #include "obt/prop.h"
48 #include "obt/keyboard.h"
49 #include "obt/parse.h"
50
51 #ifdef HAVE_FCNTL_H
52 # include <fcntl.h>
53 #endif
54 #ifdef HAVE_SIGNAL_H
55 # include <signal.h>
56 #endif
57 #ifdef HAVE_STDLIB_H
58 # include <stdlib.h>
59 #endif
60 #ifdef HAVE_LOCALE_H
61 # include <locale.h>
62 #endif
63 #ifdef HAVE_SYS_STAT_H
64 # include <sys/stat.h>
65 # include <sys/types.h>
66 #endif
67 #ifdef HAVE_SYS_WAIT_H
68 # include <sys/types.h>
69 # include <sys/wait.h>
70 #endif
71 #ifdef HAVE_UNISTD_H
72 # include <unistd.h>
73 #endif
74 #include <errno.h>
75
76 #include <X11/cursorfont.h>
77 #if USE_XCURSOR
78 #include <X11/Xcursor/Xcursor.h>
79 #endif
80
81 #include <X11/Xlib.h>
82 #include <X11/keysym.h>
83
84 RrInstance *ob_rr_inst;
85 RrTheme *ob_rr_theme;
86 ObtMainLoop *ob_main_loop;
87 gint ob_screen;
88 gboolean ob_replace_wm = FALSE;
89 gboolean ob_sm_use = TRUE;
90 gchar *ob_sm_id = NULL;
91 gchar *ob_sm_save_file = NULL;
92 gboolean ob_sm_restore = TRUE;
93 gboolean ob_debug_xinerama = FALSE;
94
95 static ObState state;
96 static gboolean xsync = FALSE;
97 static gboolean reconfigure = FALSE;
98 static gboolean restart = FALSE;
99 static gchar *restart_path = NULL;
100 static Cursor cursors[OB_NUM_CURSORS];
101 static KeyCode keys[OB_NUM_KEYS];
102 static gint exitcode = 0;
103 static guint remote_control = 0;
104 static gboolean being_replaced = FALSE;
105
106 static void signal_handler(gint signal, gpointer data);
107 static void remove_args(gint *argc, gchar **argv, gint index, gint num);
108 static void parse_env();
109 static void parse_args(gint *argc, gchar **argv);
110 static Cursor load_cursor(const gchar *name, guint fontval);
111
112 gint main(gint argc, gchar **argv)
113 {
114 gchar *program_name;
115
116 state = OB_STATE_STARTING;
117
118 /* initialize the locale */
119 if (!setlocale(LC_ALL, ""))
120 g_message("Couldn't set locale from environment.");
121 bindtextdomain(PACKAGE_NAME, LOCALEDIR);
122 bind_textdomain_codeset(PACKAGE_NAME, "UTF-8");
123 textdomain(PACKAGE_NAME);
124
125 if (chdir(g_get_home_dir()) == -1)
126 g_message(_("Unable to change to home directory '%s': %s"),
127 g_get_home_dir(), g_strerror(errno));
128
129 /* parse the command line args, which can change the argv[0] */
130 parse_args(&argc, argv);
131 /* parse the environment variables */
132 parse_env();
133
134 program_name = g_path_get_basename(argv[0]);
135 g_set_prgname(program_name);
136
137 if (!remote_control)
138 session_startup(argc, argv);
139
140 if (!obt_display_open(NULL))
141 ob_exit_with_error(_("Failed to open the display from the DISPLAY environment variable."));
142
143 if (remote_control) {
144 /* Send client message telling the OB process to:
145 * remote_control = 1 -> reconfigure
146 * remote_control = 2 -> restart */
147 OBT_PROP_MSG(ob_screen, obt_root(ob_screen),
148 OB_CONTROL, remote_control, 0, 0, 0, 0);
149 obt_display_close(obt_display);
150 exit(EXIT_SUCCESS);
151 }
152
153 ob_main_loop = obt_main_loop_new();
154
155 /* set up signal handler */
156 obt_main_loop_signal_add(ob_main_loop, SIGUSR1, signal_handler, NULL,NULL);
157 obt_main_loop_signal_add(ob_main_loop, SIGUSR2, signal_handler, NULL,NULL);
158 obt_main_loop_signal_add(ob_main_loop, SIGTERM, signal_handler, NULL,NULL);
159 obt_main_loop_signal_add(ob_main_loop, SIGINT, signal_handler, NULL,NULL);
160 obt_main_loop_signal_add(ob_main_loop, SIGHUP, signal_handler, NULL,NULL);
161 obt_main_loop_signal_add(ob_main_loop, SIGPIPE, signal_handler, NULL,NULL);
162 obt_main_loop_signal_add(ob_main_loop, SIGCHLD, signal_handler, NULL,NULL);
163
164 ob_screen = DefaultScreen(obt_display);
165
166 ob_rr_inst = RrInstanceNew(obt_display, ob_screen);
167 if (ob_rr_inst == NULL)
168 ob_exit_with_error(_("Failed to initialize the obrender library."));
169
170 XSynchronize(obt_display, xsync);
171
172 /* check for locale support */
173 if (!XSupportsLocale())
174 g_message(_("X server does not support locale."));
175 if (!XSetLocaleModifiers(""))
176 g_message(_("Cannot set locale modifiers for the X server."));
177
178 /* set the DISPLAY environment variable for any lauched children, to the
179 display we're using, so they open in the right place. */
180 putenv(g_strdup_printf("DISPLAY=%s", DisplayString(obt_display)));
181
182 /* create available cursors */
183 cursors[OB_CURSOR_NONE] = None;
184 cursors[OB_CURSOR_POINTER] = load_cursor("left_ptr", XC_left_ptr);
185 cursors[OB_CURSOR_BUSYPOINTER] = load_cursor("left_ptr_watch",XC_left_ptr);
186 cursors[OB_CURSOR_BUSY] = load_cursor("watch", XC_watch);
187 cursors[OB_CURSOR_MOVE] = load_cursor("fleur", XC_fleur);
188 cursors[OB_CURSOR_NORTH] = load_cursor("top_side", XC_top_side);
189 cursors[OB_CURSOR_NORTHEAST] = load_cursor("top_right_corner",
190 XC_top_right_corner);
191 cursors[OB_CURSOR_EAST] = load_cursor("right_side", XC_right_side);
192 cursors[OB_CURSOR_SOUTHEAST] = load_cursor("bottom_right_corner",
193 XC_bottom_right_corner);
194 cursors[OB_CURSOR_SOUTH] = load_cursor("bottom_side", XC_bottom_side);
195 cursors[OB_CURSOR_SOUTHWEST] = load_cursor("bottom_left_corner",
196 XC_bottom_left_corner);
197 cursors[OB_CURSOR_WEST] = load_cursor("left_side", XC_left_side);
198 cursors[OB_CURSOR_NORTHWEST] = load_cursor("top_left_corner",
199 XC_top_left_corner);
200
201 if (screen_annex()) { /* it will be ours! */
202 do {
203 if (reconfigure) obt_keyboard_reload();
204
205 /* get the keycodes for keys we use */
206 keys[OB_KEY_RETURN] = obt_keyboard_keysym_to_keycode(XK_Return);
207 keys[OB_KEY_ESCAPE] = obt_keyboard_keysym_to_keycode(XK_Escape);
208 keys[OB_KEY_LEFT] = obt_keyboard_keysym_to_keycode(XK_Left);
209 keys[OB_KEY_RIGHT] = obt_keyboard_keysym_to_keycode(XK_Right);
210 keys[OB_KEY_UP] = obt_keyboard_keysym_to_keycode(XK_Up);
211 keys[OB_KEY_DOWN] = obt_keyboard_keysym_to_keycode(XK_Down);
212
213 {
214 ObtParseInst *i;
215
216 /* startup the parsing so everything can register sections
217 of the rc */
218 i = obt_parse_instance_new();
219
220 /* register all the available actions */
221 actions_startup(reconfigure);
222 /* start up config which sets up with the parser */
223 config_startup(i);
224
225 /* parse/load user options */
226 if (obt_parse_load_config_file(i, "openbox", "rc.xml",
227 "openbox_config"))
228 {
229 obt_parse_tree_from_root(i);
230 obt_parse_close(i);
231 } else
232 g_message(_("Unable to find a valid config file, using some simple defaults"));
233
234 /*
235 if (config_type != NULL)
236 PROP_SETS(obt_root(ob_screen), ob_config, config_type);
237 */
238
239 /* we're done with parsing now, kill it */
240 obt_parse_instance_unref(i);
241 }
242
243 /* load the theme specified in the rc file */
244 {
245 RrTheme *theme;
246 if ((theme = RrThemeNew(ob_rr_inst, config_theme, TRUE,
247 config_font_activewindow,
248 config_font_inactivewindow,
249 config_font_menutitle,
250 config_font_menuitem,
251 config_font_osd)))
252 {
253 RrThemeFree(ob_rr_theme);
254 ob_rr_theme = theme;
255 }
256 if (ob_rr_theme == NULL)
257 ob_exit_with_error(_("Unable to load a theme."));
258
259 OBT_PROP_SETS(obt_root(ob_screen),
260 OB_THEME, utf8, ob_rr_theme->name);
261 }
262
263 if (reconfigure) {
264 GList *it;
265
266 /* update all existing windows for the new theme */
267 for (it = client_list; it; it = g_list_next(it)) {
268 ObClient *c = it->data;
269 frame_adjust_theme(c->frame);
270 }
271 }
272 event_startup(reconfigure);
273 /* focus_backup is used for stacking, so this needs to come before
274 anything that calls stacking_add */
275 sn_startup(reconfigure);
276 window_startup(reconfigure);
277 focus_startup(reconfigure);
278 focus_cycle_startup(reconfigure);
279 focus_cycle_indicator_startup(reconfigure);
280 focus_cycle_popup_startup(reconfigure);
281 screen_startup(reconfigure);
282 grab_startup(reconfigure);
283 group_startup(reconfigure);
284 ping_startup(reconfigure);
285 client_startup(reconfigure);
286 dock_startup(reconfigure);
287 moveresize_startup(reconfigure);
288 keyboard_startup(reconfigure);
289 mouse_startup(reconfigure);
290 menu_frame_startup(reconfigure);
291 menu_startup(reconfigure);
292
293 if (!reconfigure) {
294 guint32 xid;
295 ObWindow *w;
296
297 /* get all the existing windows */
298 client_manage_all();
299 focus_nothing();
300
301 /* focus what was focused if a wm was already running */
302 if (OBT_PROP_GET32(obt_root(ob_screen),
303 NET_ACTIVE_WINDOW, WINDOW, &xid) &&
304 (w = window_find(xid)) && WINDOW_IS_CLIENT(w))
305 {
306 client_focus(WINDOW_AS_CLIENT(w));
307 }
308 } else {
309 GList *it;
310
311 /* redecorate all existing windows */
312 for (it = client_list; it; it = g_list_next(it)) {
313 ObClient *c = it->data;
314
315 /* the new config can change the window's decorations */
316 client_setup_decor_and_functions(c, FALSE);
317 /* redraw the frames */
318 frame_adjust_area(c->frame, TRUE, TRUE, FALSE);
319 /* the decor sizes may have changed, so the windows may
320 end up in new positions */
321 client_reconfigure(c, FALSE);
322 }
323 }
324
325 reconfigure = FALSE;
326
327 state = OB_STATE_RUNNING;
328 obt_main_loop_run(ob_main_loop);
329 state = OB_STATE_EXITING;
330
331 if (!reconfigure) {
332 dock_remove_all();
333 client_unmanage_all();
334 }
335
336 menu_shutdown(reconfigure);
337 menu_frame_shutdown(reconfigure);
338 mouse_shutdown(reconfigure);
339 keyboard_shutdown(reconfigure);
340 moveresize_shutdown(reconfigure);
341 dock_shutdown(reconfigure);
342 client_shutdown(reconfigure);
343 ping_shutdown(reconfigure);
344 group_shutdown(reconfigure);
345 grab_shutdown(reconfigure);
346 screen_shutdown(reconfigure);
347 focus_cycle_popup_shutdown(reconfigure);
348 focus_cycle_indicator_shutdown(reconfigure);
349 focus_cycle_shutdown(reconfigure);
350 focus_shutdown(reconfigure);
351 window_shutdown(reconfigure);
352 sn_shutdown(reconfigure);
353 event_shutdown(reconfigure);
354 config_shutdown();
355 actions_shutdown(reconfigure);
356 } while (reconfigure);
357 }
358
359 XSync(obt_display, FALSE);
360
361 RrThemeFree(ob_rr_theme);
362 RrInstanceFree(ob_rr_inst);
363
364 session_shutdown(being_replaced);
365
366 obt_display_close(obt_display);
367
368 if (restart) {
369 if (restart_path != NULL) {
370 gint argcp;
371 gchar **argvp;
372 GError *err = NULL;
373
374 /* run other window manager */
375 if (g_shell_parse_argv(restart_path, &argcp, &argvp, &err)) {
376 execvp(argvp[0], argvp);
377 g_strfreev(argvp);
378 } else {
379 g_message(
380 _("Restart failed to execute new executable '%s': %s"),
381 restart_path, err->message);
382 g_error_free(err);
383 }
384 }
385
386 /* we remove the session arguments from argv, so put them back,
387 also don't restore the session on restart */
388 if (ob_sm_save_file != NULL || ob_sm_id != NULL) {
389 gchar **nargv;
390 gint i, l;
391
392 l = argc + 1 +
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 nargv[i++] = g_strdup("--sm-no-load");
408 g_assert(i == l);
409 argv = nargv;
410 }
411
412 /* re-run me */
413 execvp(argv[0], argv); /* try how we were run */
414 execlp(argv[0], program_name, (gchar*)NULL); /* last resort */
415 }
416
417 /* free stuff passed in from the command line or environment */
418 g_free(ob_sm_save_file);
419 g_free(ob_sm_id);
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(" 2008 Mikael Magnusson\n");
452 g_print(_("Copyright (c)"));
453 g_print(" 2003-2006 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(_(" --help Display this help and exit\n"));
464 g_print(_(" --version Display the version and exit\n"));
465 g_print(_(" --replace Replace the currently running window manager\n"));
466 g_print(_(" --sm-disable Disable connection to the session manager\n"));
467 g_print(_("\nPassing messages to a running Openbox instance:\n"));
468 g_print(_(" --reconfigure Reload Openbox's configuration\n"));
469 g_print(_(" --restart Restart Openbox\n"));
470 g_print(_(" --exit Exit Openbox\n"));
471 g_print(_("\nDebugging options:\n"));
472 g_print(_(" --sync Run in synchronous mode\n"));
473 g_print(_(" --debug Display debugging output\n"));
474 g_print(_(" --debug-focus Display debugging output for focus handling\n"));
475 g_print(_(" --debug-xinerama Split the display into fake xinerama screens\n"));
476 g_print(_("\nPlease report bugs at %s\n"), PACKAGE_BUGREPORT);
477 }
478
479 static void remove_args(gint *argc, gchar **argv, gint index, gint num)
480 {
481 gint i;
482
483 for (i = index; i < *argc - num; ++i)
484 argv[i] = argv[i+num];
485 for (; i < *argc; ++i)
486 argv[i] = NULL;
487 *argc -= num;
488 }
489
490 static void parse_env()
491 {
492 /* unset this so we don't pass it on unknowingly */
493 gchar *s = g_strdup("DESKTOP_STARTUP_ID");
494 putenv(s);
495 g_free(s);
496 }
497
498 static void parse_args(gint *argc, gchar **argv)
499 {
500 gint i;
501
502 for (i = 1; i < *argc; ++i) {
503 if (!strcmp(argv[i], "--version")) {
504 print_version();
505 exit(0);
506 }
507 else if (!strcmp(argv[i], "--help")) {
508 print_help();
509 exit(0);
510 }
511 else if (!strcmp(argv[i], "--g-fatal-warnings")) {
512 g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
513 }
514 else if (!strcmp(argv[i], "--replace")) {
515 ob_replace_wm = TRUE;
516 remove_args(argc, argv, i, 1);
517 --i; /* this arg was removed so go back */
518 }
519 else if (!strcmp(argv[i], "--sync")) {
520 xsync = TRUE;
521 }
522 else if (!strcmp(argv[i], "--debug")) {
523 ob_debug_show_output(TRUE);
524 ob_debug_enable(OB_DEBUG_SM, TRUE);
525 ob_debug_enable(OB_DEBUG_APP_BUGS, TRUE);
526 }
527 else if (!strcmp(argv[i], "--debug-focus")) {
528 ob_debug_show_output(TRUE);
529 ob_debug_enable(OB_DEBUG_SM, TRUE);
530 ob_debug_enable(OB_DEBUG_APP_BUGS, TRUE);
531 ob_debug_enable(OB_DEBUG_FOCUS, TRUE);
532 }
533 else if (!strcmp(argv[i], "--debug-xinerama")) {
534 ob_debug_xinerama = TRUE;
535 }
536 else if (!strcmp(argv[i], "--reconfigure")) {
537 remote_control = 1;
538 }
539 else if (!strcmp(argv[i], "--restart")) {
540 remote_control = 2;
541 }
542 else if (!strcmp(argv[i], "--exit")) {
543 remote_control = 3;
544 }
545 else if (!strcmp(argv[i], "--sm-save-file")) {
546 if (i == *argc - 1) /* no args left */
547 /* not translated cuz it's sekret */
548 g_printerr("--sm-save-file requires an argument\n");
549 else {
550 ob_sm_save_file = g_strdup(argv[i+1]);
551 remove_args(argc, argv, i, 2);
552 --i; /* this arg was removed so go back */
553 ob_debug_type(OB_DEBUG_SM, "--sm-save-file %s\n",
554 ob_sm_save_file);
555 }
556 }
557 else if (!strcmp(argv[i], "--sm-client-id")) {
558 if (i == *argc - 1) /* no args left */
559 /* not translated cuz it's sekret */
560 g_printerr("--sm-client-id requires an argument\n");
561 else {
562 ob_sm_id = g_strdup(argv[i+1]);
563 remove_args(argc, argv, i, 2);
564 --i; /* this arg was removed so go back */
565 ob_debug_type(OB_DEBUG_SM, "--sm-client-id %s\n", ob_sm_id);
566 }
567 }
568 else if (!strcmp(argv[i], "--sm-disable")) {
569 ob_sm_use = FALSE;
570 }
571 else if (!strcmp(argv[i], "--sm-no-load")) {
572 ob_sm_restore = FALSE;
573 remove_args(argc, argv, i, 1);
574 --i; /* this arg was removed so go back */
575 }
576 else {
577 /* this is a memleak.. oh well.. heh */
578 gchar *err = g_strdup_printf
579 (_("Invalid command line argument '%s'\n"), argv[i]);
580 ob_exit_with_error(err);
581 }
582 }
583 }
584
585 static Cursor load_cursor(const gchar *name, guint fontval)
586 {
587 Cursor c = None;
588
589 #if USE_XCURSOR
590 c = XcursorLibraryLoadCursor(obt_display, name);
591 #endif
592 if (c == None)
593 c = XCreateFontCursor(obt_display, fontval);
594 return c;
595 }
596
597 void ob_exit_with_error(const gchar *msg)
598 {
599 g_message(msg);
600 session_shutdown(TRUE);
601 exit(EXIT_FAILURE);
602 }
603
604 void ob_restart_other(const gchar *path)
605 {
606 restart_path = g_strdup(path);
607 ob_restart();
608 }
609
610 void ob_restart()
611 {
612 restart = TRUE;
613 ob_exit(0);
614 }
615
616 void ob_reconfigure()
617 {
618 reconfigure = TRUE;
619 ob_exit(0);
620 }
621
622 void ob_exit(gint code)
623 {
624 exitcode = code;
625 obt_main_loop_exit(ob_main_loop);
626 }
627
628 void ob_exit_replace()
629 {
630 exitcode = 0;
631 being_replaced = TRUE;
632 obt_main_loop_exit(ob_main_loop);
633 }
634
635 Cursor ob_cursor(ObCursor cursor)
636 {
637 g_assert(cursor < OB_NUM_CURSORS);
638 return cursors[cursor];
639 }
640
641 KeyCode ob_keycode(ObKey key)
642 {
643 g_assert(key < OB_NUM_KEYS);
644 return keys[key];
645 }
646
647 ObState ob_state()
648 {
649 return state;
650 }
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