move session code out of openbox.c all into session.c
[dana/openbox.git] / openbox / openbox.c
1 #include "debug.h"
2 #include "openbox.h"
3 #include "session.h"
4 #include "dock.h"
5 #include "event.h"
6 #include "menu.h"
7 #include "client.h"
8 #include "xerror.h"
9 #include "prop.h"
10 #include "screen.h"
11 #include "startupnotify.h"
12 #include "focus.h"
13 #include "moveresize.h"
14 #include "frame.h"
15 #include "keyboard.h"
16 #include "mouse.h"
17 #include "extensions.h"
18 #include "menuframe.h"
19 #include "grab.h"
20 #include "group.h"
21 #include "config.h"
22 #include "mainloop.h"
23 #include "gettext.h"
24 #include "parser/parse.h"
25 #include "render/render.h"
26 #include "render/theme.h"
27
28 #ifdef HAVE_FCNTL_H
29 #  include <fcntl.h>
30 #endif
31 #ifdef HAVE_SIGNAL_H
32 #define __USE_UNIX98
33 #  include <signal.h>
34 #endif
35 #ifdef HAVE_STDLIB_H
36 #  include <stdlib.h>
37 #endif
38 #ifdef HAVE_LOCALE_H
39 #  include <locale.h>
40 #endif
41 #ifdef HAVE_SYS_STAT_H
42 #  include <sys/stat.h>
43 #  include <sys/types.h>
44 #endif
45 #ifdef HAVE_UNISTD_H
46 #  include <unistd.h>
47 #endif
48
49 #include <X11/cursorfont.h>
50
51 RrInstance *ob_rr_inst;
52 RrTheme    *ob_rr_theme;
53 ObMainLoop *ob_main_loop;
54 Display    *ob_display;
55 gint        ob_screen;
56 gboolean    ob_replace_wm;
57
58 static ObState   state;
59 static gboolean  xsync;
60 static gboolean  reconfigure;
61 static gboolean  restart;
62 static char     *restart_path;
63 static Cursor    cursors[OB_NUM_CURSORS];
64 static KeyCode   keys[OB_NUM_KEYS];
65
66 static void signal_handler(int signal, gpointer data);
67 static void parse_args(int argc, char **argv);
68
69 int main(int argc, char **argv)
70 {
71     char *path;
72
73 #ifdef DEBUG
74     ob_debug_show_output(TRUE);
75 #endif
76
77     state = OB_STATE_STARTING;
78
79     /* initialize the locale */
80     if (!setlocale(LC_ALL, ""))
81         g_warning("Couldn't set locale from environment.\n");
82     bindtextdomain(PACKAGE_NAME, LOCALEDIR);
83     bind_textdomain_codeset(PACKAGE_NAME, "UTF-8");
84     textdomain(PACKAGE_NAME);
85
86     /* create the ~/.openbox dir */
87     path = g_build_filename(g_get_home_dir(), ".openbox", NULL);
88     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
89                  S_IROTH | S_IWOTH | S_IXOTH));
90     g_free(path);
91     /* create the ~/.openbox/themes dir */
92     path = g_build_filename(g_get_home_dir(), ".openbox", "themes", NULL);
93     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
94                  S_IROTH | S_IWOTH | S_IXOTH));
95     g_free(path);
96     /* create the ~/.openbox/sessions dir */
97     path = g_build_filename(g_get_home_dir(), ".openbox", "sessions", NULL);
98     mkdir(path, (S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP |
99                  S_IROTH | S_IWOTH | S_IXOTH));
100     g_free(path);
101
102     g_set_prgname(argv[0]);
103      
104     /* parse out command line args */
105     parse_args(argc, argv);
106
107     ob_display = XOpenDisplay(NULL);
108     if (ob_display == NULL)
109         ob_exit_with_error("Failed to open the display.");
110     if (fcntl(ConnectionNumber(ob_display), F_SETFD, 1) == -1)
111         ob_exit_with_error("Failed to set display as close-on-exec.");
112
113     ob_main_loop = ob_main_loop_new(ob_display);
114
115     /* set up signal handler */
116     ob_main_loop_signal_add(ob_main_loop, SIGUSR1, signal_handler, NULL, NULL);
117     ob_main_loop_signal_add(ob_main_loop, SIGUSR2, signal_handler, NULL, NULL);
118     ob_main_loop_signal_add(ob_main_loop, SIGTERM, signal_handler, NULL, NULL);
119     ob_main_loop_signal_add(ob_main_loop, SIGINT, signal_handler, NULL, NULL);
120     ob_main_loop_signal_add(ob_main_loop, SIGHUP, signal_handler, NULL, NULL);
121     ob_main_loop_signal_add(ob_main_loop, SIGPIPE, signal_handler, NULL, NULL);
122
123     session_startup(&argc, &argv);
124
125     ob_screen = DefaultScreen(ob_display);
126
127     ob_rr_inst = RrInstanceNew(ob_display, ob_screen);
128     if (ob_rr_inst == NULL)
129         ob_exit_with_error("Failed to initialize the render library.");
130
131     /* XXX fork self onto other screens */
132      
133     XSynchronize(ob_display, xsync);
134
135     /* check for locale support */
136     if (!XSupportsLocale())
137         g_warning("X server does not support locale.");
138     if (!XSetLocaleModifiers(""))
139         g_warning("Cannot set locale modifiers for the X server.");
140
141     /* set our error handler */
142     XSetErrorHandler(xerror_handler);
143
144     /* set the DISPLAY environment variable for any lauched children, to the
145        display we're using, so they open in the right place. */
146     putenv(g_strdup_printf("DISPLAY=%s", DisplayString(ob_display)));
147
148     /* create available cursors */
149     cursors[OB_CURSOR_NONE] = None;
150     cursors[OB_CURSOR_POINTER] =
151         XCreateFontCursor(ob_display, XC_left_ptr);
152     cursors[OB_CURSOR_BUSY] =
153         XCreateFontCursor(ob_display, XC_watch);
154     cursors[OB_CURSOR_MOVE] =
155         XCreateFontCursor(ob_display, XC_fleur);
156     cursors[OB_CURSOR_NORTH] =
157         XCreateFontCursor(ob_display, XC_top_side);
158     cursors[OB_CURSOR_NORTHEAST] =
159         XCreateFontCursor(ob_display, XC_top_right_corner);
160     cursors[OB_CURSOR_EAST] =
161         XCreateFontCursor(ob_display, XC_right_side);
162     cursors[OB_CURSOR_SOUTHEAST] =
163         XCreateFontCursor(ob_display, XC_bottom_right_corner);
164     cursors[OB_CURSOR_SOUTH] =
165         XCreateFontCursor(ob_display, XC_bottom_side);
166     cursors[OB_CURSOR_SOUTHWEST] =
167         XCreateFontCursor(ob_display, XC_bottom_left_corner);
168     cursors[OB_CURSOR_WEST] =
169         XCreateFontCursor(ob_display, XC_left_side);
170     cursors[OB_CURSOR_NORTHWEST] =
171         XCreateFontCursor(ob_display, XC_top_left_corner);
172
173     /* create available keycodes */
174     keys[OB_KEY_RETURN] =
175         XKeysymToKeycode(ob_display, XStringToKeysym("Return"));
176     keys[OB_KEY_ESCAPE] =
177         XKeysymToKeycode(ob_display, XStringToKeysym("Escape"));
178     keys[OB_KEY_LEFT] =
179         XKeysymToKeycode(ob_display, XStringToKeysym("Left"));
180     keys[OB_KEY_RIGHT] =
181         XKeysymToKeycode(ob_display, XStringToKeysym("Right"));
182     keys[OB_KEY_UP] =
183         XKeysymToKeycode(ob_display, XStringToKeysym("Up"));
184     keys[OB_KEY_DOWN] =
185         XKeysymToKeycode(ob_display, XStringToKeysym("Down"));
186
187     prop_startup(); /* get atoms values for the display */
188     extensions_query_all(); /* find which extensions are present */
189
190     if (screen_annex()) { /* it will be ours! */
191         do {
192             event_startup(reconfigure);
193             grab_startup(reconfigure);
194             /* focus_backup is used for stacking, so this needs to come before
195                anything that calls stacking_add */
196             focus_startup(reconfigure);
197             window_startup(reconfigure);
198             sn_startup(reconfigure);
199
200             {
201                 ObParseInst *i;
202                 xmlDocPtr doc;
203                 xmlNodePtr node;
204
205                 /* startup the parsing so everything can register sections
206                    of the rc */
207                 i = parse_startup();
208
209                 config_startup(i);
210                 /* parse/load user options */
211                 if (parse_load_rc(&doc, &node))
212                     parse_tree(i, doc, node->xmlChildrenNode);
213                 /* we're done with parsing now, kill it */
214                 xmlFreeDoc(doc);
215                 parse_shutdown(i);
216             }
217
218             /* load the theme specified in the rc file */
219             {
220                 RrTheme *theme;
221                 if ((theme = RrThemeNew(ob_rr_inst, config_theme)))
222                     ob_rr_theme = theme;
223                 if (ob_rr_theme == NULL)
224                     ob_exit_with_error("Unable to load a theme.");
225             }
226
227             moveresize_startup(reconfigure);
228             screen_startup(reconfigure);
229             group_startup(reconfigure);
230             client_startup(reconfigure);
231             dock_startup(reconfigure);
232             keyboard_startup(reconfigure);
233             mouse_startup(reconfigure);
234             menu_startup(reconfigure);
235
236             if (!reconfigure) {
237                 /* get all the existing windows */
238                 client_manage_all();
239             } else {
240                 GList *it;
241
242                 /* redecorate all existing windows */
243                 for (it = client_list; it; it = g_list_next(it)) {
244                     ObClient *c = it->data;
245                     frame_adjust_theme(c->frame);
246                 }
247             }
248
249             reconfigure = FALSE;
250
251             state = OB_STATE_RUNNING;
252             ob_main_loop_run(ob_main_loop);
253             state = OB_STATE_EXITING;
254
255             if (!reconfigure) {
256                 dock_remove_all();
257                 client_unmanage_all();
258             }
259
260             menu_shutdown(reconfigure);
261             mouse_shutdown(reconfigure);
262             keyboard_shutdown(reconfigure);
263             dock_shutdown(reconfigure);
264             client_shutdown(reconfigure);
265             group_shutdown(reconfigure);
266             screen_shutdown(reconfigure);
267             focus_shutdown(reconfigure);
268             moveresize_shutdown(reconfigure);
269             sn_shutdown(reconfigure);
270             window_shutdown(reconfigure);
271             grab_shutdown(reconfigure);
272             event_shutdown(reconfigure);
273             config_shutdown();
274         } while (reconfigure);
275     }
276
277     RrThemeFree(ob_rr_theme);
278     RrInstanceFree(ob_rr_inst);
279
280     session_shutdown();
281
282     XCloseDisplay(ob_display);
283
284     if (restart) {
285         if (restart_path != NULL) {
286             int argcp;
287             char **argvp;
288             GError *err = NULL;
289
290             /* run other shit */
291             if (g_shell_parse_argv(restart_path, &argcp, &argvp, &err)) {
292                 execvp(argvp[0], argvp);
293                 g_strfreev(argvp);
294             } else {
295                 g_warning("failed to execute '%s': %s", restart_path,
296                           err->message);
297             }
298         }
299
300         /* re-run me */
301         execvp(argv[0], argv); /* try how we were run */
302         execlp(argv[0], g_path_get_basename(argv[0])); /* last resort */
303     }
304      
305     return 0;
306 }
307
308 static void signal_handler(int signal, gpointer data)
309 {
310     if (signal == SIGUSR1) {
311         fprintf(stderr, "Caught signal %d. Restarting.\n", signal);
312         ob_restart();
313     } else if (signal == SIGUSR2) {
314         fprintf(stderr, "Caught signal %d. Reconfiguring.\n", signal);
315         ob_reconfigure();
316     } else {
317         fprintf(stderr, "Caught signal %d. Exiting.\n", signal);
318         ob_exit();
319     }
320 }
321
322 static void print_version()
323 {
324     g_print("Openbox %s\n\n", PACKAGE_VERSION);
325     g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
326     g_print("This is free software, and you are welcome to redistribute it\n");
327     g_print("under certain conditions. See the file COPYING for details.\n\n");
328 }
329
330 static void print_help()
331 {
332     print_version();
333     g_print("Syntax: openbox [options]\n\n");
334     g_print("Options:\n\n");
335 #ifdef USE_SM
336     g_print("  --sm-disable        Disable connection to session manager\n");
337     g_print("  --sm-client-id ID   Specify session management ID\n");
338     g_print("  --sm-save-file FILE Specify file to load a saved session\n"
339             "                      from\n");
340 #endif
341     g_print("  --replace           Replace the currently running window "
342             "manager\n");
343     g_print("  --help              Display this help and exit\n");
344     g_print("  --version           Display the version and exit\n");
345     g_print("  --sync              Run in synchronous mode (this is slow and\n"
346             "                      meant for debugging X routines)\n");
347     g_print("  --debug             Display debugging output\n");
348     g_print("\nPlease report bugs at %s\n", PACKAGE_BUGREPORT);
349 }
350
351 static void parse_args(int argc, char **argv)
352 {
353     int i;
354
355     for (i = 1; i < argc; ++i) {
356         if (!strcmp(argv[i], "--version")) {
357             print_version();
358             exit(0);
359         } else if (!strcmp(argv[i], "--help")) {
360             print_help();
361             exit(0);
362         } else if (!strcmp(argv[i], "--g-fatal-warnings")) {
363             g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
364         } else if (!strcmp(argv[i], "--replace")) {
365             ob_replace_wm = TRUE;
366         } else if (!strcmp(argv[i], "--sync")) {
367             xsync = TRUE;
368         } else if (!strcmp(argv[i], "--debug")) {
369             ob_debug_show_output(TRUE);
370         } else {
371             g_printerr("Invalid option: '%s'\n\n", argv[i]);
372             print_help();
373             exit(1);
374         }
375     }
376 }
377
378 void ob_exit_with_error(gchar *msg)
379 {
380     g_critical(msg);
381     session_shutdown();
382     exit(EXIT_FAILURE);
383 }
384
385 void ob_restart_other(const gchar *path)
386 {
387     restart_path = g_strdup(path);
388     ob_restart();
389 }
390
391 void ob_restart()
392 {
393     restart = TRUE;
394     ob_exit();
395 }
396
397 void ob_exit()
398 {
399     ob_main_loop_exit(ob_main_loop);
400 }
401
402 Cursor ob_cursor(ObCursor cursor)
403 {
404     g_assert(cursor < OB_NUM_CURSORS);
405     return cursors[cursor];
406 }
407
408 KeyCode ob_keycode(ObKey key)
409 {
410     g_assert(key < OB_NUM_KEYS);
411     return keys[key];
412 }
413
414 ObState ob_state()
415 {
416     return state;
417 }
418
419 gchar *ob_expand_tilde(const gchar *f)
420 {
421     gchar **spl;
422     gchar *ret, *mid;
423
424     if (!f)
425         return NULL;
426     spl = g_strsplit(f, "~", 0);
427     mid = g_strconcat(g_get_home_dir(), G_DIR_SEPARATOR_S, NULL);
428     ret = g_strjoinv(mid, spl);
429     g_free(mid);
430     g_strfreev(spl);
431     return ret;
432 }
433
434 void ob_reconfigure()
435 {
436     reconfigure = TRUE;
437     ob_exit();
438 }