update openbox to use the current parser interface in libobt
[mikachu/openbox.git] / 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 "mainloop.h"
44 #include "gettext.h"
45 #include "render/render.h"
46 #include "render/theme.h"
47 #include "obt/display.h"
48 #include "obt/prop.h"
49 #include "obt/keyboard.h"
50 #include "obt/parse.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             if (reconfigure) obt_keyboard_reload();
208
209             /* get the keycodes for keys we use */
210             keys[OB_KEY_RETURN] = obt_keyboard_keysym_to_keycode(XK_Return);
211             keys[OB_KEY_ESCAPE] = obt_keyboard_keysym_to_keycode(XK_Escape);
212             keys[OB_KEY_LEFT] = obt_keyboard_keysym_to_keycode(XK_Left);
213             keys[OB_KEY_RIGHT] = obt_keyboard_keysym_to_keycode(XK_Right);
214             keys[OB_KEY_UP] = obt_keyboard_keysym_to_keycode(XK_Up);
215             keys[OB_KEY_DOWN] = obt_keyboard_keysym_to_keycode(XK_Down);
216
217             {
218                 ObtParseInst *i;
219
220                 /* startup the parsing so everything can register sections
221                    of the rc */
222                 i = obt_parse_instance_new();
223
224                 /* register all the available actions */
225                 actions_startup(reconfigure);
226                 /* start up config which sets up with the parser */
227                 config_startup(i);
228
229                 /* parse/load user options */
230                 if (obt_parse_load_config_file(i, "openbox", "rc.xml",
231                                                "openbox_config"))
232                 {
233                     obt_parse_tree(i, obt_parse_instance_root(i)->children);
234                     obt_parse_close(i);
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                 obt_parse_instance_unref(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         } while (reconfigure);
363     }
364
365     XSync(obt_display, FALSE);
366
367     RrThemeFree(ob_rr_theme);
368     RrInstanceFree(ob_rr_inst);
369
370     session_shutdown(being_replaced);
371
372     obt_display_close(obt_display);
373
374     parse_paths_shutdown();
375
376     if (restart) {
377         if (restart_path != NULL) {
378             gint argcp;
379             gchar **argvp;
380             GError *err = NULL;
381
382             /* run other window manager */
383             if (g_shell_parse_argv(restart_path, &argcp, &argvp, &err)) {
384                 execvp(argvp[0], argvp);
385                 g_strfreev(argvp);
386             } else {
387                 g_message(
388                     _("Restart failed to execute new executable '%s': %s"),
389                     restart_path, err->message);
390                 g_error_free(err);
391             }
392         }
393
394         /* we remove the session arguments from argv, so put them back,
395            also don't restore the session on restart */
396         if (ob_sm_save_file != NULL || ob_sm_id != NULL) {
397             gchar **nargv;
398             gint i, l;
399
400             l = argc + 1 +
401                 (ob_sm_save_file != NULL ? 2 : 0) +
402                 (ob_sm_id != NULL ? 2 : 0);
403             nargv = g_new0(gchar*, l+1);
404             for (i = 0; i < argc; ++i)
405                 nargv[i] = argv[i];
406
407             if (ob_sm_save_file != NULL) {
408                 nargv[i++] = g_strdup("--sm-save-file");
409                 nargv[i++] = ob_sm_save_file;
410             }
411             if (ob_sm_id != NULL) {
412                 nargv[i++] = g_strdup("--sm-client-id");
413                 nargv[i++] = ob_sm_id;
414             }
415             nargv[i++] = g_strdup("--sm-no-load");
416             g_assert(i == l);
417             argv = nargv;
418         }
419
420         /* re-run me */
421         execvp(argv[0], argv); /* try how we were run */
422         execlp(argv[0], program_name, (gchar*)NULL); /* last resort */
423     }
424
425     /* free stuff passed in from the command line or environment */
426     g_free(ob_sm_save_file);
427     g_free(ob_sm_id);
428     g_free(program_name);
429
430     return exitcode;
431 }
432
433 static void signal_handler(gint signal, gpointer data)
434 {
435     switch (signal) {
436     case SIGUSR1:
437         ob_debug("Caught signal %d. Restarting.\n", signal);
438         ob_restart();
439         break;
440     case SIGUSR2:
441         ob_debug("Caught signal %d. Reconfiguring.\n", signal);
442         ob_reconfigure();
443         break;
444     case SIGCHLD:
445         /* reap children */
446         while (waitpid(-1, NULL, WNOHANG) > 0);
447         break;
448     default:
449         ob_debug("Caught signal %d. Exiting.\n", signal);
450         /* TERM and INT return a 0 code */
451         ob_exit(!(signal == SIGTERM || signal == SIGINT));
452     }
453 }
454
455 static void print_version()
456 {
457     g_print("Openbox %s\n", PACKAGE_VERSION);
458     g_print(_("Copyright (c)"));
459     g_print(" 2008        Mikael Magnusson\n");
460     g_print(_("Copyright (c)"));
461     g_print(" 2003-2006   Dana Jansens\n\n");
462     g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
463     g_print("This is free software, and you are welcome to redistribute it\n");
464     g_print("under certain conditions. See the file COPYING for details.\n\n");
465 }
466
467 static void print_help()
468 {
469     g_print(_("Syntax: openbox [options]\n"));
470     g_print(_("\nOptions:\n"));
471     g_print(_("  --help              Display this help and exit\n"));
472     g_print(_("  --version           Display the version and exit\n"));
473     g_print(_("  --replace           Replace the currently running window manager\n"));
474     g_print(_("  --sm-disable        Disable connection to the session manager\n"));
475     g_print(_("\nPassing messages to a running Openbox instance:\n"));
476     g_print(_("  --reconfigure       Reload Openbox's configuration\n"));
477     g_print(_("  --restart           Restart Openbox\n"));
478     g_print(_("  --exit              Exit Openbox\n"));
479     g_print(_("\nDebugging options:\n"));
480     g_print(_("  --sync              Run in synchronous mode\n"));
481     g_print(_("  --debug             Display debugging output\n"));
482     g_print(_("  --debug-focus       Display debugging output for focus handling\n"));
483     g_print(_("  --debug-xinerama    Split the display into fake xinerama screens\n"));
484     g_print(_("\nPlease report bugs at %s\n"), PACKAGE_BUGREPORT);
485 }
486
487 static void remove_args(gint *argc, gchar **argv, gint index, gint num)
488 {
489     gint i;
490
491     for (i = index; i < *argc - num; ++i)
492         argv[i] = argv[i+num];
493     for (; i < *argc; ++i)
494         argv[i] = NULL;
495     *argc -= num;
496 }
497
498 static void parse_env()
499 {
500     /* unset this so we don't pass it on unknowingly */
501     gchar *s = g_strdup("DESKTOP_STARTUP_ID");
502     putenv(s);
503     g_free(s);
504 }
505
506 static void parse_args(gint *argc, gchar **argv)
507 {
508     gint i;
509
510     for (i = 1; i < *argc; ++i) {
511         if (!strcmp(argv[i], "--version")) {
512             print_version();
513             exit(0);
514         }
515         else if (!strcmp(argv[i], "--help")) {
516             print_help();
517             exit(0);
518         }
519         else if (!strcmp(argv[i], "--g-fatal-warnings")) {
520             g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
521         }
522         else if (!strcmp(argv[i], "--replace")) {
523             ob_replace_wm = TRUE;
524             remove_args(argc, argv, i, 1);
525             --i; /* this arg was removed so go back */
526         }
527         else if (!strcmp(argv[i], "--sync")) {
528             xsync = TRUE;
529         }
530         else if (!strcmp(argv[i], "--debug")) {
531             ob_debug_show_output(TRUE);
532             ob_debug_enable(OB_DEBUG_SM, TRUE);
533             ob_debug_enable(OB_DEBUG_APP_BUGS, TRUE);
534         }
535         else if (!strcmp(argv[i], "--debug-focus")) {
536             ob_debug_show_output(TRUE);
537             ob_debug_enable(OB_DEBUG_SM, TRUE);
538             ob_debug_enable(OB_DEBUG_APP_BUGS, TRUE);
539             ob_debug_enable(OB_DEBUG_FOCUS, TRUE);
540         }
541         else if (!strcmp(argv[i], "--debug-xinerama")) {
542             ob_debug_xinerama = TRUE;
543         }
544         else if (!strcmp(argv[i], "--reconfigure")) {
545             remote_control = 1;
546         }
547         else if (!strcmp(argv[i], "--restart")) {
548             remote_control = 2;
549         }
550         else if (!strcmp(argv[i], "--exit")) {
551             remote_control = 3;
552         }
553         else if (!strcmp(argv[i], "--sm-save-file")) {
554             if (i == *argc - 1) /* no args left */
555                 /* not translated cuz it's sekret */
556                 g_printerr("--sm-save-file requires an argument\n");
557             else {
558                 ob_sm_save_file = g_strdup(argv[i+1]);
559                 remove_args(argc, argv, i, 2);
560                 --i; /* this arg was removed so go back */
561                 ob_debug_type(OB_DEBUG_SM, "--sm-save-file %s\n",
562                               ob_sm_save_file);
563             }
564         }
565         else if (!strcmp(argv[i], "--sm-client-id")) {
566             if (i == *argc - 1) /* no args left */
567                 /* not translated cuz it's sekret */
568                 g_printerr("--sm-client-id requires an argument\n");
569             else {
570                 ob_sm_id = 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-client-id %s\n", ob_sm_id);
574             }
575         }
576         else if (!strcmp(argv[i], "--sm-disable")) {
577             ob_sm_use = FALSE;
578         }
579         else if (!strcmp(argv[i], "--sm-no-load")) {
580             ob_sm_restore = FALSE;
581             remove_args(argc, argv, i, 1);
582             --i; /* this arg was removed so go back */
583         }
584         else {
585             /* this is a memleak.. oh well.. heh */
586             gchar *err = g_strdup_printf
587                 (_("Invalid command line argument '%s'\n"), argv[i]);
588             ob_exit_with_error(err);
589         }
590     }
591 }
592
593 static Cursor load_cursor(const gchar *name, guint fontval)
594 {
595     Cursor c = None;
596
597 #if USE_XCURSOR
598     c = XcursorLibraryLoadCursor(obt_display, name);
599 #endif
600     if (c == None)
601         c = XCreateFontCursor(obt_display, fontval);
602     return c;
603 }
604
605 void ob_exit_with_error(const gchar *msg)
606 {
607     g_message(msg);
608     session_shutdown(TRUE);
609     exit(EXIT_FAILURE);
610 }
611
612 void ob_restart_other(const gchar *path)
613 {
614     restart_path = g_strdup(path);
615     ob_restart();
616 }
617
618 void ob_restart()
619 {
620     restart = TRUE;
621     ob_exit(0);
622 }
623
624 void ob_reconfigure()
625 {
626     reconfigure = TRUE;
627     ob_exit(0);
628 }
629
630 void ob_exit(gint code)
631 {
632     exitcode = code;
633     obt_main_loop_exit(ob_main_loop);
634 }
635
636 void ob_exit_replace()
637 {
638     exitcode = 0;
639     being_replaced = TRUE;
640     obt_main_loop_exit(ob_main_loop);
641 }
642
643 Cursor ob_cursor(ObCursor cursor)
644 {
645     g_assert(cursor < OB_NUM_CURSORS);
646     return cursors[cursor];
647 }
648
649 KeyCode ob_keycode(ObKey key)
650 {
651     g_assert(key < OB_NUM_KEYS);
652     return keys[key];
653 }
654
655 ObState ob_state()
656 {
657     return state;
658 }