]> Dogcows Code - chaz/openbox/blob - openbox/openbox.c
use setenv/unsetenv instead of putenv, cuz they are not ugly and confusing wrt memory...
[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 "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 "framerender.h"
40 #include "keyboard.h"
41 #include "mouse.h"
42 #include "extensions.h"
43 #include "menuframe.h"
44 #include "grab.h"
45 #include "group.h"
46 #include "config.h"
47 #include "ping.h"
48 #include "mainloop.h"
49 #include "gettext.h"
50 #include "parser/parse.h"
51 #include "render/render.h"
52 #include "render/theme.h"
53
54 #ifdef HAVE_FCNTL_H
55 # include <fcntl.h>
56 #endif
57 #ifdef HAVE_SIGNAL_H
58 # include <signal.h>
59 #endif
60 #ifdef HAVE_STDLIB_H
61 # include <stdlib.h>
62 #endif
63 #ifdef HAVE_LOCALE_H
64 # include <locale.h>
65 #endif
66 #ifdef HAVE_SYS_STAT_H
67 # include <sys/stat.h>
68 # include <sys/types.h>
69 #endif
70 #ifdef HAVE_SYS_WAIT_H
71 # include <sys/types.h>
72 # include <sys/wait.h>
73 #endif
74 #ifdef HAVE_UNISTD_H
75 # include <unistd.h>
76 #endif
77 #include <errno.h>
78
79 #include <X11/cursorfont.h>
80 #if USE_XCURSOR
81 #include <X11/Xcursor/Xcursor.h>
82 #endif
83
84 #include <X11/Xlib.h>
85 #include <X11/keysym.h>
86
87
88 RrInstance *ob_rr_inst;
89 RrTheme *ob_rr_theme;
90 ObMainLoop *ob_main_loop;
91 Display *ob_display;
92 gint ob_screen;
93 gboolean ob_replace_wm = FALSE;
94 gboolean ob_sm_use = TRUE;
95 gchar *ob_sm_id = NULL;
96 gchar *ob_sm_save_file = NULL;
97 gboolean ob_sm_restore = TRUE;
98 gboolean ob_debug_xinerama = FALSE;
99
100 static ObState state;
101 static gboolean xsync = FALSE;
102 static gboolean reconfigure = FALSE;
103 static gboolean restart = FALSE;
104 static gchar *restart_path = NULL;
105 static Cursor cursors[OB_NUM_CURSORS];
106 static KeyCode keys[OB_NUM_KEYS];
107 static gint exitcode = 0;
108 static guint remote_control = 0;
109 static gboolean being_replaced = FALSE;
110
111 static void signal_handler(gint signal, gpointer data);
112 static void remove_args(gint *argc, gchar **argv, gint index, gint num);
113 static void parse_env();
114 static void parse_args(gint *argc, gchar **argv);
115 static Cursor load_cursor(const gchar *name, guint fontval);
116
117 gint main(gint argc, gchar **argv)
118 {
119 gchar *program_name;
120
121 state = OB_STATE_STARTING;
122
123 /* initialize the locale */
124 if (!setlocale(LC_ALL, ""))
125 g_message("Couldn't set locale from environment.");
126 bindtextdomain(PACKAGE_NAME, LOCALEDIR);
127 bind_textdomain_codeset(PACKAGE_NAME, "UTF-8");
128 textdomain(PACKAGE_NAME);
129
130 if (chdir(g_get_home_dir()) == -1)
131 g_message(_("Unable to change to home directory '%s': %s"),
132 g_get_home_dir(), g_strerror(errno));
133
134 /* parse the command line args, which can change the argv[0] */
135 parse_args(&argc, argv);
136 /* parse the environment variables */
137 parse_env();
138
139 program_name = g_path_get_basename(argv[0]);
140 g_set_prgname(program_name);
141
142 if (!remote_control) {
143 parse_paths_startup();
144
145 session_startup(argc, argv);
146 }
147
148
149 ob_display = XOpenDisplay(NULL);
150 if (ob_display == NULL)
151 ob_exit_with_error(_("Failed to open the display from the DISPLAY environment variable."));
152 if (fcntl(ConnectionNumber(ob_display), F_SETFD, 1) == -1)
153 ob_exit_with_error("Failed to set display as close-on-exec");
154
155 if (remote_control) {
156 prop_startup();
157
158 /* Send client message telling the OB process to:
159 * remote_control = 1 -> reconfigure
160 * remote_control = 2 -> restart */
161 PROP_MSG(RootWindow(ob_display, ob_screen),
162 ob_control, remote_control, 0, 0, 0);
163 XCloseDisplay(ob_display);
164 exit(EXIT_SUCCESS);
165 }
166
167 ob_main_loop = ob_main_loop_new(ob_display);
168
169 /* set up signal handler */
170 ob_main_loop_signal_add(ob_main_loop, SIGUSR1, signal_handler, NULL, NULL);
171 ob_main_loop_signal_add(ob_main_loop, SIGUSR2, signal_handler, NULL, NULL);
172 ob_main_loop_signal_add(ob_main_loop, SIGTERM, signal_handler, NULL, NULL);
173 ob_main_loop_signal_add(ob_main_loop, SIGINT, signal_handler, NULL, NULL);
174 ob_main_loop_signal_add(ob_main_loop, SIGHUP, signal_handler, NULL, NULL);
175 ob_main_loop_signal_add(ob_main_loop, SIGPIPE, signal_handler, NULL, NULL);
176 ob_main_loop_signal_add(ob_main_loop, SIGCHLD, signal_handler, NULL, NULL);
177
178 ob_screen = DefaultScreen(ob_display);
179
180 ob_rr_inst = RrInstanceNew(ob_display, ob_screen);
181 if (ob_rr_inst == NULL)
182 ob_exit_with_error(_("Failed to initialize the obrender library."));
183
184 XSynchronize(ob_display, xsync);
185
186 /* check for locale support */
187 if (!XSupportsLocale())
188 g_message(_("X server does not support locale."));
189 if (!XSetLocaleModifiers(""))
190 g_message(_("Cannot set locale modifiers for the X server."));
191
192 /* set our error handler */
193 XSetErrorHandler(xerror_handler);
194
195 /* set the DISPLAY environment variable for any lauched children, to the
196 display we're using, so they open in the right place. */
197 setenv("DISPLAY", DisplayString(ob_display), TRUE);
198
199 /* create available cursors */
200 cursors[OB_CURSOR_NONE] = None;
201 cursors[OB_CURSOR_POINTER] = load_cursor("left_ptr", XC_left_ptr);
202 cursors[OB_CURSOR_BUSYPOINTER] = load_cursor("left_ptr_watch",XC_left_ptr);
203 cursors[OB_CURSOR_BUSY] = load_cursor("watch", XC_watch);
204 cursors[OB_CURSOR_MOVE] = load_cursor("fleur", XC_fleur);
205 cursors[OB_CURSOR_NORTH] = load_cursor("top_side", XC_top_side);
206 cursors[OB_CURSOR_NORTHEAST] = load_cursor("top_right_corner",
207 XC_top_right_corner);
208 cursors[OB_CURSOR_EAST] = load_cursor("right_side", XC_right_side);
209 cursors[OB_CURSOR_SOUTHEAST] = load_cursor("bottom_right_corner",
210 XC_bottom_right_corner);
211 cursors[OB_CURSOR_SOUTH] = load_cursor("bottom_side", XC_bottom_side);
212 cursors[OB_CURSOR_SOUTHWEST] = load_cursor("bottom_left_corner",
213 XC_bottom_left_corner);
214 cursors[OB_CURSOR_WEST] = load_cursor("left_side", XC_left_side);
215 cursors[OB_CURSOR_NORTHWEST] = load_cursor("top_left_corner",
216 XC_top_left_corner);
217
218
219 prop_startup(); /* get atoms values for the display */
220 extensions_query_all(); /* find which extensions are present */
221
222 if (screen_annex()) { /* it will be ours! */
223 do {
224 modkeys_startup(reconfigure);
225
226 /* get the keycodes for keys we use */
227 keys[OB_KEY_RETURN] = modkeys_sym_to_code(XK_Return);
228 keys[OB_KEY_ESCAPE] = modkeys_sym_to_code(XK_Escape);
229 keys[OB_KEY_LEFT] = modkeys_sym_to_code(XK_Left);
230 keys[OB_KEY_RIGHT] = modkeys_sym_to_code(XK_Right);
231 keys[OB_KEY_UP] = modkeys_sym_to_code(XK_Up);
232 keys[OB_KEY_DOWN] = modkeys_sym_to_code(XK_Down);
233
234 {
235 ObParseInst *i;
236 xmlDocPtr doc;
237 xmlNodePtr node;
238
239 /* startup the parsing so everything can register sections
240 of the rc */
241 i = parse_startup();
242
243 /* register all the available actions */
244 actions_startup(reconfigure);
245 /* start up config which sets up with the parser */
246 config_startup(i);
247
248 /* parse/load user options */
249 if (parse_load_rc(NULL, &doc, &node)) {
250 parse_tree(i, doc, node->xmlChildrenNode);
251 parse_close(doc);
252 } else
253 g_message(_("Unable to find a valid config file, using some simple defaults"));
254
255 /*
256 if (config_type != NULL)
257 PROP_SETS(RootWindow(ob_display, ob_screen),
258 ob_config, config_type);
259 */
260
261 /* we're done with parsing now, kill it */
262 parse_shutdown(i);
263 }
264
265 /* load the theme specified in the rc file */
266 {
267 RrTheme *theme;
268 if ((theme = RrThemeNew(ob_rr_inst, config_theme, TRUE,
269 config_font_activewindow,
270 config_font_inactivewindow,
271 config_font_menutitle,
272 config_font_menuitem,
273 config_font_osd)))
274 {
275 RrThemeFree(ob_rr_theme);
276 ob_rr_theme = theme;
277 }
278 if (ob_rr_theme == NULL)
279 ob_exit_with_error(_("Unable to load a theme."));
280
281 PROP_SETS(RootWindow(ob_display, ob_screen),
282 ob_theme, ob_rr_theme->name);
283 }
284
285 if (reconfigure) {
286 GList *it;
287
288 /* update all existing windows for the new theme */
289 for (it = client_list; it; it = g_list_next(it)) {
290 ObClient *c = it->data;
291 frame_adjust_theme(c->frame);
292 }
293 }
294 event_startup(reconfigure);
295 /* focus_backup is used for stacking, so this needs to come before
296 anything that calls stacking_add */
297 sn_startup(reconfigure);
298 window_startup(reconfigure);
299 focus_startup(reconfigure);
300 focus_cycle_startup(reconfigure);
301 focus_cycle_indicator_startup(reconfigure);
302 focus_cycle_popup_startup(reconfigure);
303 screen_startup(reconfigure);
304 grab_startup(reconfigure);
305 group_startup(reconfigure);
306 ping_startup(reconfigure);
307 client_startup(reconfigure);
308 dock_startup(reconfigure);
309 moveresize_startup(reconfigure);
310 keyboard_startup(reconfigure);
311 mouse_startup(reconfigure);
312 menu_frame_startup(reconfigure);
313 menu_startup(reconfigure);
314
315 if (!reconfigure) {
316 guint32 xid;
317 ObWindow *w;
318
319 /* get all the existing windows */
320 client_manage_all();
321 focus_nothing();
322
323 /* focus what was focused if a wm was already running */
324 if (PROP_GET32(RootWindow(ob_display, ob_screen),
325 net_active_window, window, &xid) &&
326 (w = g_hash_table_lookup(window_map, &xid)) &&
327 WINDOW_IS_CLIENT(w))
328 {
329 client_focus(WINDOW_AS_CLIENT(w));
330 }
331 } else {
332 GList *it;
333
334 /* redecorate all existing windows */
335 for (it = client_list; it; it = g_list_next(it)) {
336 ObClient *c = it->data;
337
338 /* the new config can change the window's decorations */
339 client_setup_decor_and_functions(c, FALSE);
340 /* redraw the frames */
341 frame_adjust_area(c->frame, TRUE, TRUE, FALSE);
342 /* the decor sizes may have changed, so the windows may
343 end up in new positions */
344 client_reconfigure(c, FALSE);
345 }
346 }
347
348 reconfigure = FALSE;
349
350 state = OB_STATE_RUNNING;
351 ob_main_loop_run(ob_main_loop);
352 state = OB_STATE_EXITING;
353
354 if (!reconfigure) {
355 dock_remove_all();
356 client_unmanage_all();
357 }
358
359 menu_shutdown(reconfigure);
360 menu_frame_shutdown(reconfigure);
361 mouse_shutdown(reconfigure);
362 keyboard_shutdown(reconfigure);
363 moveresize_shutdown(reconfigure);
364 dock_shutdown(reconfigure);
365 client_shutdown(reconfigure);
366 ping_shutdown(reconfigure);
367 group_shutdown(reconfigure);
368 grab_shutdown(reconfigure);
369 screen_shutdown(reconfigure);
370 focus_cycle_popup_shutdown(reconfigure);
371 focus_cycle_indicator_shutdown(reconfigure);
372 focus_cycle_shutdown(reconfigure);
373 focus_shutdown(reconfigure);
374 window_shutdown(reconfigure);
375 sn_shutdown(reconfigure);
376 event_shutdown(reconfigure);
377 config_shutdown();
378 actions_shutdown(reconfigure);
379 modkeys_shutdown(reconfigure);
380 } while (reconfigure);
381 }
382
383 XSync(ob_display, FALSE);
384
385 RrThemeFree(ob_rr_theme);
386 RrInstanceFree(ob_rr_inst);
387
388 session_shutdown(being_replaced);
389
390 XCloseDisplay(ob_display);
391
392 parse_paths_shutdown();
393
394 if (restart) {
395 if (restart_path != NULL) {
396 gint argcp;
397 gchar **argvp;
398 GError *err = NULL;
399
400 /* run other window manager */
401 if (g_shell_parse_argv(restart_path, &argcp, &argvp, &err)) {
402 execvp(argvp[0], argvp);
403 g_strfreev(argvp);
404 } else {
405 g_message(
406 _("Restart failed to execute new executable '%s': %s"),
407 restart_path, err->message);
408 g_error_free(err);
409 }
410 }
411
412 /* we remove the session arguments from argv, so put them back,
413 also don't restore the session on restart */
414 if (ob_sm_save_file != NULL || ob_sm_id != NULL) {
415 gchar **nargv;
416 gint i, l;
417
418 l = argc + 1 +
419 (ob_sm_save_file != NULL ? 2 : 0) +
420 (ob_sm_id != NULL ? 2 : 0);
421 nargv = g_new0(gchar*, l+1);
422 for (i = 0; i < argc; ++i)
423 nargv[i] = argv[i];
424
425 if (ob_sm_save_file != NULL) {
426 nargv[i++] = g_strdup("--sm-save-file");
427 nargv[i++] = ob_sm_save_file;
428 }
429 if (ob_sm_id != NULL) {
430 nargv[i++] = g_strdup("--sm-client-id");
431 nargv[i++] = ob_sm_id;
432 }
433 nargv[i++] = g_strdup("--sm-no-load");
434 g_assert(i == l);
435 argv = nargv;
436 }
437
438 /* re-run me */
439 execvp(argv[0], argv); /* try how we were run */
440 execlp(argv[0], program_name, (gchar*)NULL); /* last resort */
441 }
442
443 /* free stuff passed in from the command line or environment */
444 g_free(ob_sm_save_file);
445 g_free(ob_sm_id);
446 g_free(program_name);
447
448 return exitcode;
449 }
450
451 static void signal_handler(gint signal, gpointer data)
452 {
453 switch (signal) {
454 case SIGUSR1:
455 ob_debug("Caught signal %d. Restarting.\n", signal);
456 ob_restart();
457 break;
458 case SIGUSR2:
459 ob_debug("Caught signal %d. Reconfiguring.\n", signal);
460 ob_reconfigure();
461 break;
462 case SIGCHLD:
463 /* reap children */
464 while (waitpid(-1, NULL, WNOHANG) > 0);
465 break;
466 default:
467 ob_debug("Caught signal %d. Exiting.\n", signal);
468 /* TERM and INT return a 0 code */
469 ob_exit(!(signal == SIGTERM || signal == SIGINT));
470 }
471 }
472
473 static void print_version()
474 {
475 g_print("Openbox %s\n", PACKAGE_VERSION);
476 g_print(_("Copyright (c)"));
477 g_print(" 2008 Mikael Magnusson\n");
478 g_print(_("Copyright (c)"));
479 g_print(" 2003-2006 Dana Jansens\n\n");
480 g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
481 g_print("This is free software, and you are welcome to redistribute it\n");
482 g_print("under certain conditions. See the file COPYING for details.\n\n");
483 }
484
485 static void print_help()
486 {
487 g_print(_("Syntax: openbox [options]\n"));
488 g_print(_("\nOptions:\n"));
489 g_print(_(" --help Display this help and exit\n"));
490 g_print(_(" --version Display the version and exit\n"));
491 g_print(_(" --replace Replace the currently running window manager\n"));
492 g_print(_(" --sm-disable Disable connection to the session manager\n"));
493 g_print(_("\nPassing messages to a running Openbox instance:\n"));
494 g_print(_(" --reconfigure Reload Openbox's configuration\n"));
495 g_print(_(" --restart Restart Openbox\n"));
496 g_print(_(" --exit Exit Openbox\n"));
497 g_print(_("\nDebugging options:\n"));
498 g_print(_(" --sync Run in synchronous mode\n"));
499 g_print(_(" --debug Display debugging output\n"));
500 g_print(_(" --debug-focus Display debugging output for focus handling\n"));
501 g_print(_(" --debug-xinerama Split the display into fake xinerama screens\n"));
502 g_print(_("\nPlease report bugs at %s\n"), PACKAGE_BUGREPORT);
503 }
504
505 static void remove_args(gint *argc, gchar **argv, gint index, gint num)
506 {
507 gint i;
508
509 for (i = index; i < *argc - num; ++i)
510 argv[i] = argv[i+num];
511 for (; i < *argc; ++i)
512 argv[i] = NULL;
513 *argc -= num;
514 }
515
516 static void parse_env()
517 {
518 /* unset this so we don't pass it on unknowingly */
519 unsetenv("DESKTOP_STARTUP_ID");
520 }
521
522 static void parse_args(gint *argc, gchar **argv)
523 {
524 gint i;
525
526 for (i = 1; i < *argc; ++i) {
527 if (!strcmp(argv[i], "--version")) {
528 print_version();
529 exit(0);
530 }
531 else if (!strcmp(argv[i], "--help")) {
532 print_help();
533 exit(0);
534 }
535 else if (!strcmp(argv[i], "--g-fatal-warnings")) {
536 g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
537 }
538 else if (!strcmp(argv[i], "--replace")) {
539 ob_replace_wm = TRUE;
540 remove_args(argc, argv, i, 1);
541 --i; /* this arg was removed so go back */
542 }
543 else if (!strcmp(argv[i], "--sync")) {
544 xsync = TRUE;
545 }
546 else if (!strcmp(argv[i], "--debug")) {
547 ob_debug_show_output(TRUE);
548 ob_debug_enable(OB_DEBUG_SM, TRUE);
549 ob_debug_enable(OB_DEBUG_APP_BUGS, TRUE);
550 }
551 else if (!strcmp(argv[i], "--debug-focus")) {
552 ob_debug_show_output(TRUE);
553 ob_debug_enable(OB_DEBUG_SM, TRUE);
554 ob_debug_enable(OB_DEBUG_APP_BUGS, TRUE);
555 ob_debug_enable(OB_DEBUG_FOCUS, TRUE);
556 }
557 else if (!strcmp(argv[i], "--debug-xinerama")) {
558 ob_debug_xinerama = TRUE;
559 }
560 else if (!strcmp(argv[i], "--reconfigure")) {
561 remote_control = 1;
562 }
563 else if (!strcmp(argv[i], "--restart")) {
564 remote_control = 2;
565 }
566 else if (!strcmp(argv[i], "--exit")) {
567 remote_control = 3;
568 }
569 else if (!strcmp(argv[i], "--sm-save-file")) {
570 if (i == *argc - 1) /* no args left */
571 /* not translated cuz it's sekret */
572 g_printerr("--sm-save-file requires an argument\n");
573 else {
574 ob_sm_save_file = g_strdup(argv[i+1]);
575 remove_args(argc, argv, i, 2);
576 --i; /* this arg was removed so go back */
577 ob_debug_type(OB_DEBUG_SM, "--sm-save-file %s\n",
578 ob_sm_save_file);
579 }
580 }
581 else if (!strcmp(argv[i], "--sm-client-id")) {
582 if (i == *argc - 1) /* no args left */
583 /* not translated cuz it's sekret */
584 g_printerr("--sm-client-id requires an argument\n");
585 else {
586 ob_sm_id = g_strdup(argv[i+1]);
587 remove_args(argc, argv, i, 2);
588 --i; /* this arg was removed so go back */
589 ob_debug_type(OB_DEBUG_SM, "--sm-client-id %s\n", ob_sm_id);
590 }
591 }
592 else if (!strcmp(argv[i], "--sm-disable")) {
593 ob_sm_use = FALSE;
594 }
595 else if (!strcmp(argv[i], "--sm-no-load")) {
596 ob_sm_restore = FALSE;
597 remove_args(argc, argv, i, 1);
598 --i; /* this arg was removed so go back */
599 }
600 else {
601 /* this is a memleak.. oh well.. heh */
602 gchar *err = g_strdup_printf
603 (_("Invalid command line argument '%s'\n"), argv[i]);
604 ob_exit_with_error(err);
605 }
606 }
607 }
608
609 static Cursor load_cursor(const gchar *name, guint fontval)
610 {
611 Cursor c = None;
612
613 #if USE_XCURSOR
614 c = XcursorLibraryLoadCursor(ob_display, name);
615 #endif
616 if (c == None)
617 c = XCreateFontCursor(ob_display, fontval);
618 return c;
619 }
620
621 void ob_exit_with_error(const gchar *msg)
622 {
623 g_message(msg);
624 session_shutdown(TRUE);
625 exit(EXIT_FAILURE);
626 }
627
628 void ob_restart_other(const gchar *path)
629 {
630 restart_path = g_strdup(path);
631 ob_restart();
632 }
633
634 void ob_restart()
635 {
636 restart = TRUE;
637 ob_exit(0);
638 }
639
640 void ob_reconfigure()
641 {
642 reconfigure = TRUE;
643 ob_exit(0);
644 }
645
646 void ob_exit(gint code)
647 {
648 exitcode = code;
649 ob_main_loop_exit(ob_main_loop);
650 }
651
652 void ob_exit_replace()
653 {
654 exitcode = 0;
655 being_replaced = TRUE;
656 ob_main_loop_exit(ob_main_loop);
657 }
658
659 Cursor ob_cursor(ObCursor cursor)
660 {
661 g_assert(cursor < OB_NUM_CURSORS);
662 return cursors[cursor];
663 }
664
665 KeyCode ob_keycode(ObKey key)
666 {
667 g_assert(key < OB_NUM_KEYS);
668 return keys[key];
669 }
670
671 ObState ob_state()
672 {
673 return state;
674 }
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