]> icculus.org git repositories - dana/openbox.git/blob - openbox/openbox.c
move focus_cycle_indicator into its own file
[dana/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 "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 "moveresize.h"
36 #include "frame.h"
37 #include "keyboard.h"
38 #include "mouse.h"
39 #include "extensions.h"
40 #include "menuframe.h"
41 #include "grab.h"
42 #include "group.h"
43 #include "propwin.h"
44 #include "config.h"
45 #include "mainloop.h"
46 #include "gettext.h"
47 #include "parser/parse.h"
48 #include "render/render.h"
49 #include "render/theme.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
85 RrInstance *ob_rr_inst;
86 RrTheme    *ob_rr_theme;
87 ObMainLoop *ob_main_loop;
88 Display    *ob_display;
89 gint        ob_screen;
90 gboolean    ob_replace_wm = FALSE;
91 gboolean    ob_sm_use = TRUE;
92 gchar      *ob_sm_id = NULL;
93 gchar      *ob_sm_save_file = NULL;
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
145     ob_display = XOpenDisplay(NULL);
146     if (ob_display == NULL)
147         ob_exit_with_error(_("Failed to open the display from the DISPLAY environment variable."));
148     if (fcntl(ConnectionNumber(ob_display), F_SETFD, 1) == -1)
149         ob_exit_with_error("Failed to set display as close-on-exec");
150
151     if (remote_control) {
152         prop_startup();
153
154         /* Send client message telling the OB process to:
155          * remote_control = 1 -> reconfigure 
156          * remote_control = 2 -> restart */
157         PROP_MSG(RootWindow(ob_display, ob_screen),
158                  ob_control, remote_control, 0, 0, 0);
159         XCloseDisplay(ob_display);
160         exit(EXIT_SUCCESS);
161     }
162
163     ob_main_loop = ob_main_loop_new(ob_display);
164
165     /* set up signal handler */
166     ob_main_loop_signal_add(ob_main_loop, SIGUSR1, signal_handler, NULL, NULL);
167     ob_main_loop_signal_add(ob_main_loop, SIGUSR2, signal_handler, NULL, NULL);
168     ob_main_loop_signal_add(ob_main_loop, SIGTERM, signal_handler, NULL, NULL);
169     ob_main_loop_signal_add(ob_main_loop, SIGINT, signal_handler, NULL, NULL);
170     ob_main_loop_signal_add(ob_main_loop, SIGHUP, signal_handler, NULL, NULL);
171     ob_main_loop_signal_add(ob_main_loop, SIGPIPE, signal_handler, NULL, NULL);
172     ob_main_loop_signal_add(ob_main_loop, SIGCHLD, signal_handler, NULL, NULL);
173
174     ob_screen = DefaultScreen(ob_display);
175
176     ob_rr_inst = RrInstanceNew(ob_display, ob_screen);
177     if (ob_rr_inst == NULL)
178         ob_exit_with_error(_("Failed to initialize the render library."));
179
180     XSynchronize(ob_display, xsync);
181
182     /* check for locale support */
183     if (!XSupportsLocale())
184         g_message(_("X server does not support locale."));
185     if (!XSetLocaleModifiers(""))
186         g_message(_("Cannot set locale modifiers for the X server."));
187
188     /* set our error handler */
189     XSetErrorHandler(xerror_handler);
190
191     /* set the DISPLAY environment variable for any lauched children, to the
192        display we're using, so they open in the right place. */
193     putenv(g_strdup_printf("DISPLAY=%s", DisplayString(ob_display)));
194
195     /* create available cursors */
196     cursors[OB_CURSOR_NONE] = None;
197     cursors[OB_CURSOR_POINTER] = load_cursor("left_ptr", XC_left_ptr);
198     cursors[OB_CURSOR_BUSY] = load_cursor("left_ptr_watch", XC_watch);
199     cursors[OB_CURSOR_MOVE] = load_cursor("fleur", XC_fleur);
200     cursors[OB_CURSOR_NORTH] = load_cursor("top_side", XC_top_side);
201     cursors[OB_CURSOR_NORTHEAST] = load_cursor("top_right_corner",
202                                                XC_top_right_corner);
203     cursors[OB_CURSOR_EAST] = load_cursor("right_side", XC_right_side);
204     cursors[OB_CURSOR_SOUTHEAST] = load_cursor("bottom_right_corner",
205                                                XC_bottom_right_corner);
206     cursors[OB_CURSOR_SOUTH] = load_cursor("bottom_side", XC_bottom_side);
207     cursors[OB_CURSOR_SOUTHWEST] = load_cursor("bottom_left_corner",
208                                                XC_bottom_left_corner);
209     cursors[OB_CURSOR_WEST] = load_cursor("left_side", XC_left_side);
210     cursors[OB_CURSOR_NORTHWEST] = load_cursor("top_left_corner",
211                                                XC_top_left_corner);
212
213
214     prop_startup(); /* get atoms values for the display */
215     extensions_query_all(); /* find which extensions are present */
216
217     if (screen_annex()) { /* it will be ours! */
218         do {
219             modkeys_startup(reconfigure);
220
221             /* get the keycodes for keys we use */
222             keys[OB_KEY_RETURN] = modkeys_sym_to_code(XK_Return);
223             keys[OB_KEY_ESCAPE] = modkeys_sym_to_code(XK_Escape);
224             keys[OB_KEY_LEFT] = modkeys_sym_to_code(XK_Left);
225             keys[OB_KEY_RIGHT] = modkeys_sym_to_code(XK_Right);
226             keys[OB_KEY_UP] = modkeys_sym_to_code(XK_Up);
227             keys[OB_KEY_DOWN] = modkeys_sym_to_code(XK_Down);
228
229             {
230                 ObParseInst *i;
231                 xmlDocPtr doc;
232                 xmlNodePtr node;
233
234                 /* startup the parsing so everything can register sections
235                    of the rc */
236                 i = parse_startup();
237
238                 /* start up config which sets up with the parser */
239                 config_startup(i);
240
241                 /* parse/load user options */
242                 if (parse_load_rc(NULL, &doc, &node)) {
243                     parse_tree(i, doc, node->xmlChildrenNode);
244                     parse_close(doc);
245                 } else
246                     g_message(_("Unable to find a valid config file, using some simple defaults"));
247
248 /*
249                 if (config_type != NULL)
250                     PROP_SETS(RootWindow(ob_display, ob_screen),
251                               ob_config, config_type);
252 */
253
254                 /* we're done with parsing now, kill it */
255                 parse_shutdown(i);
256             }
257
258             /* load the theme specified in the rc file */
259             {
260                 RrTheme *theme;
261                 if ((theme = RrThemeNew(ob_rr_inst, config_theme,
262                                         config_font_activewindow,
263                                         config_font_inactivewindow,
264                                         config_font_menutitle,
265                                         config_font_menuitem,
266                                         config_font_osd)))
267                 {
268                     RrThemeFree(ob_rr_theme);
269                     ob_rr_theme = theme;
270                 }
271                 if (ob_rr_theme == NULL)
272                     ob_exit_with_error(_("Unable to load a theme."));
273             }
274
275             if (reconfigure) {
276                 GList *it;
277
278                 /* update all existing windows for the new theme */
279                 for (it = client_list; it; it = g_list_next(it)) {
280                     ObClient *c = it->data;
281                     frame_adjust_theme(c->frame);
282                 }
283             }
284             event_startup(reconfigure);
285             /* focus_backup is used for stacking, so this needs to come before
286                anything that calls stacking_add */
287             focus_startup(reconfigure);
288             focus_cycle_startup(reconfigure);
289             focus_cycle_indicator_startup(reconfigure);
290             window_startup(reconfigure);
291             sn_startup(reconfigure);
292             screen_startup(reconfigure);
293             grab_startup(reconfigure);
294             propwin_startup(reconfigure);
295             group_startup(reconfigure);
296             client_startup(reconfigure);
297             dock_startup(reconfigure);
298             moveresize_startup(reconfigure);
299             keyboard_startup(reconfigure);
300             mouse_startup(reconfigure);
301             menu_startup(reconfigure);
302             menu_frame_startup(reconfigure);
303
304             if (!reconfigure) {
305                 guint32 xid;
306                 ObWindow *w;
307
308                 /* get all the existing windows */
309                 client_manage_all();
310                 focus_nothing();
311
312                 /* focus what was focused if a wm was already running */
313                 if (PROP_GET32(RootWindow(ob_display, ob_screen),
314                                net_active_window, window, &xid) &&
315                     (w = g_hash_table_lookup(window_map, &xid)) &&
316                     WINDOW_IS_CLIENT(w))
317                 {
318                     client_focus(WINDOW_AS_CLIENT(w));
319                 }
320             } else {
321                 GList *it;
322
323                 /* redecorate all existing windows */
324                 for (it = client_list; it; it = g_list_next(it)) {
325                     ObClient *c = it->data;
326                     /* the new config can change the window's decorations */
327                     client_setup_decor_and_functions(c);
328                     /* redraw the frames */
329                     frame_adjust_area(c->frame, TRUE, TRUE, FALSE);
330                 }
331             }
332
333             reconfigure = FALSE;
334
335             state = OB_STATE_RUNNING;
336             ob_main_loop_run(ob_main_loop);
337             state = OB_STATE_EXITING;
338
339             if (!reconfigure) {
340                 dock_remove_all();
341                 client_unmanage_all();
342             }
343
344             menu_frame_shutdown(reconfigure);
345             menu_shutdown(reconfigure);
346             mouse_shutdown(reconfigure);
347             keyboard_shutdown(reconfigure);
348             moveresize_shutdown(reconfigure);
349             dock_shutdown(reconfigure);
350             client_shutdown(reconfigure);
351             group_shutdown(reconfigure);
352             propwin_shutdown(reconfigure);
353             grab_shutdown(reconfigure);
354             screen_shutdown(reconfigure);
355             focus_cycle_indicator_shutdown(reconfigure);
356             focus_cycle_shutdown(reconfigure);
357             focus_shutdown(reconfigure);
358             sn_shutdown(reconfigure);
359             window_shutdown(reconfigure);
360             event_shutdown(reconfigure);
361             config_shutdown();
362             modkeys_shutdown(reconfigure);
363         } while (reconfigure);
364     }
365
366     XSync(ob_display, FALSE);
367
368     RrThemeFree(ob_rr_theme);
369     RrInstanceFree(ob_rr_inst);
370
371     session_shutdown(being_replaced);
372
373     XCloseDisplay(ob_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         if (ob_sm_save_file != NULL || ob_sm_id != NULL) {
397             gchar **nargv;
398             gint i, l;
399
400             l = argc +
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             g_assert(i == l);
416             argv = nargv;
417         }
418
419         /* re-run me */
420         execvp(argv[0], argv); /* try how we were run */
421         execlp(argv[0], program_name, (gchar*)NULL); /* last resort */
422     }
423
424     /* free stuff passed in from the command line or environment */
425     g_free(ob_sm_save_file);
426     g_free(ob_sm_id);
427     g_free(program_name);
428      
429     return exitcode;
430 }
431
432 static void signal_handler(gint signal, gpointer data)
433 {
434     switch (signal) {
435     case SIGUSR1:
436         ob_debug("Caught signal %d. Restarting.\n", signal);
437         ob_restart();
438         break;
439     case SIGUSR2:
440         ob_debug("Caught signal %d. Reconfiguring.\n", signal);
441         ob_reconfigure(); 
442         break;
443     case SIGCHLD:
444         /* reap children */
445         while (waitpid(-1, NULL, WNOHANG) > 0);
446         break;
447     default:
448         ob_debug("Caught signal %d. Exiting.\n", signal);
449         /* TERM and INT return a 0 code */
450         ob_exit(!(signal == SIGTERM || signal == SIGINT));
451     }
452 }
453
454 static void print_version()
455 {
456     g_print("Openbox %s\n", PACKAGE_VERSION);
457     g_print(_("Copyright (c)"));
458     g_print(" 2007        Mikael Magnusson\n");
459     g_print(_("Copyright (c)"));
460     g_print(" 2003-2007   Dana Jansens\n\n");
461     g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
462     g_print("This is free software, and you are welcome to redistribute it\n");
463     g_print("under certain conditions. See the file COPYING for details.\n\n");
464 }
465
466 static void print_help()
467 {
468     g_print(_("Syntax: openbox [options]\n"));
469     g_print(_("\nOptions:\n"));
470     g_print(_("  --help              Display this help and exit\n"));
471     g_print(_("  --version           Display the version and exit\n"));
472     g_print(_("  --replace           Replace the currently running window manager\n"));
473     g_print(_("  --sm-disable        Disable connection to the session manager\n"));
474     g_print(_("\nPassing messages to a running Openbox instance:\n"));
475     g_print(_("  --reconfigure       Reload Openbox's configuration\n"));
476     g_print(_("\nDebugging options:\n"));
477     g_print(_("  --sync              Run in synchronous mode\n"));
478     g_print(_("  --debug             Display debugging output\n"));
479     g_print(_("  --debug-focus       Display debugging output for focus handling\n"));
480     g_print(_("  --debug-xinerama    Split the display into fake xinerama screens\n"));
481     g_print(_("\nPlease report bugs at %s\n"), PACKAGE_BUGREPORT);
482 }
483
484 static void remove_args(gint *argc, gchar **argv, gint index, gint num)
485 {
486     gint i;
487
488     for (i = index; i < *argc - num; ++i)
489         argv[i] = argv[i+num];
490     for (; i < *argc; ++i)
491         argv[i] = NULL;
492     *argc -= num;
493 }
494
495 static void parse_env()
496 {
497     /* unset this so we don't pass it on unknowingly */
498     unsetenv("DESKTOP_STARTUP_ID");
499 }
500
501 static void parse_args(gint *argc, gchar **argv)
502 {
503     gint i;
504
505     for (i = 1; i < *argc; ++i) {
506         if (!strcmp(argv[i], "--version")) {
507             print_version();
508             exit(0);
509         }
510         else if (!strcmp(argv[i], "--help")) {
511             print_help();
512             exit(0);
513         }
514         else if (!strcmp(argv[i], "--g-fatal-warnings")) {
515             g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
516         }
517         else if (!strcmp(argv[i], "--replace")) {
518             ob_replace_wm = TRUE;
519             remove_args(argc, argv, i, 1);
520             --i; /* this arg was removed so go back */
521         }
522         else if (!strcmp(argv[i], "--sync")) {
523             xsync = TRUE;
524         }
525         else if (!strcmp(argv[i], "--debug")) {
526             ob_debug_show_output(TRUE);
527             ob_debug_enable(OB_DEBUG_SM, TRUE);
528             ob_debug_enable(OB_DEBUG_APP_BUGS, TRUE);
529         }
530         else if (!strcmp(argv[i], "--debug-focus")) {
531             ob_debug_show_output(TRUE);
532             ob_debug_enable(OB_DEBUG_SM, TRUE);
533             ob_debug_enable(OB_DEBUG_APP_BUGS, TRUE);
534             ob_debug_enable(OB_DEBUG_FOCUS, TRUE);
535         }
536         else if (!strcmp(argv[i], "--debug-xinerama")) {
537             ob_debug_xinerama = TRUE;
538         }
539         else if (!strcmp(argv[i], "--reconfigure")) {
540             remote_control = 1;
541 /* don't make this do anything if it's not in --help ..
542         } else if (!strcmp(argv[i], "--restart")) {
543             remote_control = 2;
544 */
545         }
546         else if (!strcmp(argv[i], "--sm-save-file")) {
547             if (i == *argc - 1) /* no args left */
548                 /* not translated cuz it's sekret */
549                 g_printerr("--sm-save-file requires an argument\n");
550             else {
551                 ob_sm_save_file = g_strdup(argv[i+1]);
552                 remove_args(argc, argv, i, 2);
553                 --i; /* this arg was removed so go back */
554                 ob_debug_type(OB_DEBUG_SM, "--sm-save-file %s\n",
555                               ob_sm_save_file);
556             }
557         }
558         else if (!strcmp(argv[i], "--sm-client-id")) {
559             if (i == *argc - 1) /* no args left */
560                 /* not translated cuz it's sekret */
561                 g_printerr("--sm-client-id requires an argument\n");
562             else {
563                 ob_sm_id = g_strdup(argv[i+1]);
564                 remove_args(argc, argv, i, 2);
565                 --i; /* this arg was removed so go back */
566                 ob_debug_type(OB_DEBUG_SM, "--sm-client-id %s\n", ob_sm_id);
567             }
568         }
569         else if (!strcmp(argv[i], "--sm-disable")) {
570             ob_sm_use = FALSE;
571         }
572         else {
573             /* this is a memleak.. oh well.. heh */
574             gchar *err = g_strdup_printf
575                 (_("Invalid command line argument '%s'\n"), argv[i]);
576             ob_exit_with_error(err);
577         }
578     }
579 }
580
581 static Cursor load_cursor(const gchar *name, guint fontval)
582 {
583     Cursor c = None;
584
585 #if USE_XCURSOR
586     c = XcursorLibraryLoadCursor(ob_display, name);
587 #endif
588     if (c == None)
589         c = XCreateFontCursor(ob_display, fontval);
590     return c;
591 }
592
593 void ob_exit_with_error(const gchar *msg)
594 {
595     g_message(msg);
596     session_shutdown(TRUE);
597     exit(EXIT_FAILURE);
598 }
599
600 void ob_restart_other(const gchar *path)
601 {
602     restart_path = g_strdup(path);
603     ob_restart();
604 }
605
606 void ob_restart()
607 {
608     restart = TRUE;
609     ob_exit(0);
610 }
611
612 void ob_reconfigure()
613 {
614     reconfigure = TRUE;
615     ob_exit(0);
616 }
617
618 void ob_exit(gint code)
619 {
620     exitcode = code;
621     ob_main_loop_exit(ob_main_loop);
622 }
623
624 void ob_exit_replace()
625 {
626     exitcode = 0;
627     being_replaced = TRUE;
628     ob_main_loop_exit(ob_main_loop);
629 }
630
631 Cursor ob_cursor(ObCursor cursor)
632 {
633     g_assert(cursor < OB_NUM_CURSORS);
634     return cursors[cursor];
635 }
636
637 KeyCode ob_keycode(ObKey key)
638 {
639     g_assert(key < OB_NUM_KEYS);
640     return keys[key];
641 }
642
643 ObState ob_state()
644 {
645     return state;
646 }