]> Dogcows Code - chaz/openbox/blob - openbox/openbox.c
use the X protocol to reconfigure instead of signals, works over the network too
[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 Ben 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 "xerror.h"
28 #include "prop.h"
29 #include "screen.h"
30 #include "startupnotify.h"
31 #include "focus.h"
32 #include "moveresize.h"
33 #include "frame.h"
34 #include "keyboard.h"
35 #include "mouse.h"
36 #include "extensions.h"
37 #include "menuframe.h"
38 #include "grab.h"
39 #include "group.h"
40 #include "config.h"
41 #include "mainloop.h"
42 #include "gettext.h"
43 #include "parser/parse.h"
44 #include "render/render.h"
45 #include "render/theme.h"
46
47 #ifdef HAVE_FCNTL_H
48 # include <fcntl.h>
49 #endif
50 #ifdef HAVE_SIGNAL_H
51 # include <signal.h>
52 #endif
53 #ifdef HAVE_STDLIB_H
54 # include <stdlib.h>
55 #endif
56 #ifdef HAVE_LOCALE_H
57 # include <locale.h>
58 #endif
59 #ifdef HAVE_SYS_STAT_H
60 # include <sys/stat.h>
61 # include <sys/types.h>
62 #endif
63 #ifdef HAVE_SYS_WAIT_H
64 # include <sys/types.h>
65 # include <sys/wait.h>
66 #endif
67 #ifdef HAVE_UNISTD_H
68 # include <unistd.h>
69 #endif
70 #include <errno.h>
71
72 #include <X11/cursorfont.h>
73
74 RrInstance *ob_rr_inst;
75 RrTheme *ob_rr_theme;
76 ObMainLoop *ob_main_loop;
77 Display *ob_display;
78 gint ob_screen;
79 gboolean ob_replace_wm = FALSE;
80
81 static ObState state;
82 static gboolean xsync = FALSE;
83 static gboolean reconfigure = FALSE;
84 static gboolean restart = FALSE;
85 static gchar *restart_path = NULL;
86 static Cursor cursors[OB_NUM_CURSORS];
87 static KeyCode keys[OB_NUM_KEYS];
88 static gint exitcode = 0;
89 static gboolean message_and_exit = FALSE;
90 static Atom *message;
91 static gboolean being_replaced = FALSE;
92
93 static void signal_handler(gint signal, gpointer data);
94 static void parse_args(gint argc, gchar **argv);
95
96 gint main(gint argc, gchar **argv)
97 {
98 #ifdef DEBUG
99 ob_debug_show_output(TRUE);
100 #endif
101
102 state = OB_STATE_STARTING;
103
104 /* initialize the locale */
105 if (!setlocale(LC_ALL, ""))
106 g_warning("Couldn't set locale from environment.\n");
107 bindtextdomain(PACKAGE_NAME, LOCALEDIR);
108 bind_textdomain_codeset(PACKAGE_NAME, "UTF-8");
109 textdomain(PACKAGE_NAME);
110
111 g_set_prgname(argv[0]);
112
113 if (chdir(g_get_home_dir()) == -1)
114 g_warning("Unable to change to home directory (%s): %s",
115 g_get_home_dir(), g_strerror(errno));
116
117 /* parse out command line args */
118 parse_args(argc, argv);
119
120 if (!message_and_exit) {
121 parse_paths_startup();
122
123 session_startup(argc, argv);
124 }
125
126 ob_display = XOpenDisplay(NULL);
127 if (ob_display == NULL)
128 ob_exit_with_error("Failed to open the display.");
129 if (fcntl(ConnectionNumber(ob_display), F_SETFD, 1) == -1)
130 ob_exit_with_error("Failed to set display as close-on-exec.");
131
132 if (message_and_exit) {
133 prop_startup();
134
135 /* Send client message telling the OB process to reconfigure */
136 prop_message(RootWindow(ob_display, ob_screen), prop_atoms.ob_control,
137 *message, 0, 0, 0, SubstructureNotifyMask);
138 XCloseDisplay(ob_display);
139 exit(0);
140 }
141
142 ob_main_loop = ob_main_loop_new(ob_display);
143
144 /* set up signal handler */
145 ob_main_loop_signal_add(ob_main_loop, SIGUSR1, signal_handler, NULL, NULL);
146 ob_main_loop_signal_add(ob_main_loop, SIGUSR2, signal_handler, NULL, NULL);
147 ob_main_loop_signal_add(ob_main_loop, SIGTERM, signal_handler, NULL, NULL);
148 ob_main_loop_signal_add(ob_main_loop, SIGINT, signal_handler, NULL, NULL);
149 ob_main_loop_signal_add(ob_main_loop, SIGHUP, signal_handler, NULL, NULL);
150 ob_main_loop_signal_add(ob_main_loop, SIGPIPE, signal_handler, NULL, NULL);
151 ob_main_loop_signal_add(ob_main_loop, SIGCHLD, signal_handler, NULL, NULL);
152
153 ob_screen = DefaultScreen(ob_display);
154
155 ob_rr_inst = RrInstanceNew(ob_display, ob_screen);
156 if (ob_rr_inst == NULL)
157 ob_exit_with_error("Failed to initialize the render library.");
158
159 XSynchronize(ob_display, xsync);
160
161 /* check for locale support */
162 if (!XSupportsLocale())
163 g_warning("X server does not support locale.");
164 if (!XSetLocaleModifiers(""))
165 g_warning("Cannot set locale modifiers for the X server.");
166
167 /* set our error handler */
168 XSetErrorHandler(xerror_handler);
169
170 /* set the DISPLAY environment variable for any lauched children, to the
171 display we're using, so they open in the right place. */
172 putenv(g_strdup_printf("DISPLAY=%s", DisplayString(ob_display)));
173
174 /* create available cursors */
175 cursors[OB_CURSOR_NONE] = None;
176 cursors[OB_CURSOR_POINTER] =
177 XCreateFontCursor(ob_display, XC_left_ptr);
178 cursors[OB_CURSOR_BUSY] =
179 XCreateFontCursor(ob_display, XC_watch);
180 cursors[OB_CURSOR_MOVE] =
181 XCreateFontCursor(ob_display, XC_fleur);
182 cursors[OB_CURSOR_NORTH] =
183 XCreateFontCursor(ob_display, XC_top_side);
184 cursors[OB_CURSOR_NORTHEAST] =
185 XCreateFontCursor(ob_display, XC_top_right_corner);
186 cursors[OB_CURSOR_EAST] =
187 XCreateFontCursor(ob_display, XC_right_side);
188 cursors[OB_CURSOR_SOUTHEAST] =
189 XCreateFontCursor(ob_display, XC_bottom_right_corner);
190 cursors[OB_CURSOR_SOUTH] =
191 XCreateFontCursor(ob_display, XC_bottom_side);
192 cursors[OB_CURSOR_SOUTHWEST] =
193 XCreateFontCursor(ob_display, XC_bottom_left_corner);
194 cursors[OB_CURSOR_WEST] =
195 XCreateFontCursor(ob_display, XC_left_side);
196 cursors[OB_CURSOR_NORTHWEST] =
197 XCreateFontCursor(ob_display, XC_top_left_corner);
198
199 /* create available keycodes */
200 keys[OB_KEY_RETURN] =
201 XKeysymToKeycode(ob_display, XStringToKeysym("Return"));
202 keys[OB_KEY_ESCAPE] =
203 XKeysymToKeycode(ob_display, XStringToKeysym("Escape"));
204 keys[OB_KEY_LEFT] =
205 XKeysymToKeycode(ob_display, XStringToKeysym("Left"));
206 keys[OB_KEY_RIGHT] =
207 XKeysymToKeycode(ob_display, XStringToKeysym("Right"));
208 keys[OB_KEY_UP] =
209 XKeysymToKeycode(ob_display, XStringToKeysym("Up"));
210 keys[OB_KEY_DOWN] =
211 XKeysymToKeycode(ob_display, XStringToKeysym("Down"));
212
213 prop_startup(); /* get atoms values for the display */
214 extensions_query_all(); /* find which extensions are present */
215
216 if (screen_annex()) { /* it will be ours! */
217 do {
218 {
219 ObParseInst *i;
220 xmlDocPtr doc;
221 xmlNodePtr node;
222
223 /* startup the parsing so everything can register sections
224 of the rc */
225 i = parse_startup();
226
227 config_startup(i);
228 /* parse/load user options */
229 if (parse_load_rc(&doc, &node))
230 parse_tree(i, doc, node->xmlChildrenNode);
231 /* we're done with parsing now, kill it */
232 parse_close(doc);
233 parse_shutdown(i);
234 }
235
236 /* load the theme specified in the rc file */
237 {
238 RrTheme *theme;
239 if ((theme = RrThemeNew(ob_rr_inst, config_theme,
240 config_font_activewindow,
241 config_font_inactivewindow,
242 config_font_menutitle,
243 config_font_menuitem)))
244 {
245 RrThemeFree(ob_rr_theme);
246 ob_rr_theme = theme;
247 }
248 if (ob_rr_theme == NULL)
249 ob_exit_with_error("Unable to load a theme.");
250 }
251
252 if (reconfigure) {
253 GList *it;
254
255 /* update all existing windows for the new theme */
256 for (it = client_list; it; it = g_list_next(it)) {
257 ObClient *c = it->data;
258 frame_adjust_theme(c->frame);
259 }
260 }
261 event_startup(reconfigure);
262 /* focus_backup is used for stacking, so this needs to come before
263 anything that calls stacking_add */
264 focus_startup(reconfigure);
265 window_startup(reconfigure);
266 sn_startup(reconfigure);
267 screen_startup(reconfigure);
268 grab_startup(reconfigure);
269 group_startup(reconfigure);
270 client_startup(reconfigure);
271 dock_startup(reconfigure);
272 moveresize_startup(reconfigure);
273 keyboard_startup(reconfigure);
274 mouse_startup(reconfigure);
275 menu_startup(reconfigure);
276
277 if (!reconfigure) {
278 /* get all the existing windows */
279 client_manage_all();
280 focus_fallback(OB_FOCUS_FALLBACK_NOFOCUS);
281 } else {
282 GList *it;
283
284 /* redecorate all existing windows */
285 for (it = client_list; it; it = g_list_next(it)) {
286 ObClient *c = it->data;
287 /* the new config can change the window's decorations */
288 client_setup_decor_and_functions(c);
289 /* redraw the frames */
290 frame_adjust_area(c->frame, TRUE, TRUE, FALSE);
291 }
292 }
293
294 reconfigure = FALSE;
295
296 state = OB_STATE_RUNNING;
297 ob_main_loop_run(ob_main_loop);
298 state = OB_STATE_EXITING;
299
300 if (!reconfigure) {
301 dock_remove_all();
302 client_unmanage_all();
303 }
304
305 menu_shutdown(reconfigure);
306 mouse_shutdown(reconfigure);
307 keyboard_shutdown(reconfigure);
308 moveresize_shutdown(reconfigure);
309 dock_shutdown(reconfigure);
310 client_shutdown(reconfigure);
311 group_shutdown(reconfigure);
312 grab_shutdown(reconfigure);
313 screen_shutdown(reconfigure);
314 focus_shutdown(reconfigure);
315 sn_shutdown(reconfigure);
316 window_shutdown(reconfigure);
317 event_shutdown(reconfigure);
318 config_shutdown();
319 } while (reconfigure);
320 }
321
322 XSync(ob_display, FALSE);
323
324 RrThemeFree(ob_rr_theme);
325 RrInstanceFree(ob_rr_inst);
326
327 session_shutdown(being_replaced);
328
329 XCloseDisplay(ob_display);
330
331 parse_paths_shutdown();
332
333 if (restart) {
334 if (restart_path != NULL) {
335 gint argcp;
336 gchar **argvp;
337 GError *err = NULL;
338
339 /* run other window manager */
340 if (g_shell_parse_argv(restart_path, &argcp, &argvp, &err)) {
341 execvp(argvp[0], argvp);
342 g_strfreev(argvp);
343 } else {
344 g_warning("failed to execute '%s': %s", restart_path,
345 err->message);
346 g_error_free(err);
347 }
348 }
349
350 /* re-run me */
351 execvp(argv[0], argv); /* try how we were run */
352 execlp(argv[0], g_path_get_basename(argv[0]),
353 (char *)NULL); /* last resort */
354 }
355
356 return exitcode;
357 }
358
359 static void signal_handler(gint signal, gpointer data)
360 {
361 switch (signal) {
362 case SIGUSR1:
363 ob_debug("Caught signal %d. Restarting.\n", signal);
364 ob_restart();
365 break;
366 case SIGUSR2:
367 ob_debug("Caught signal %d. Reconfiguring.\n", signal);
368 ob_reconfigure();
369 break;
370 case SIGCHLD:
371 /* reap children */
372 while (waitpid(-1, NULL, WNOHANG) > 0);
373 break;
374 default:
375 ob_debug("Caught signal %d. Exiting.\n", signal);
376 /* TERM and INT return a 0 code */
377 ob_exit(!(signal == SIGTERM || signal == SIGINT));
378 }
379 }
380
381 static void print_version()
382 {
383 g_print("Openbox %s\n", PACKAGE_VERSION);
384 g_print("Copyright (c) 2006 Mikael Magnusson\n");
385 g_print("Copyright (c) 2003 Ben Jansens\n\n");
386 g_print("This program comes with ABSOLUTELY NO WARRANTY.\n");
387 g_print("This is free software, and you are welcome to redistribute it\n");
388 g_print("under certain conditions. See the file COPYING for details.\n\n");
389 }
390
391 static void print_help()
392 {
393 g_print("Syntax: openbox [options]\n\n");
394 g_print("Options:\n\n");
395 g_print(" --reconfigure Tell the currently running instance of "
396 "Openbox to\n"
397 " reconfigure (and then exit immediately)\n");
398 #ifdef USE_SM
399 g_print(" --sm-disable Disable connection to session manager\n");
400 g_print(" --sm-client-id ID Specify session management ID\n");
401 g_print(" --sm-save-file FILE Specify file to load a saved session"
402 "from\n");
403 #endif
404 g_print(" --replace Replace the currently running window "
405 "manager\n");
406 g_print(" --help Display this help and exit\n");
407 g_print(" --version Display the version and exit\n");
408 g_print(" --sync Run in synchronous mode (this is slow and "
409 "meant for\n"
410 " debugging X routines)\n");
411 g_print(" --debug Display debugging output\n");
412 g_print("\nPlease report bugs at %s\n\n", PACKAGE_BUGREPORT);
413 }
414
415 static void parse_args(gint argc, gchar **argv)
416 {
417 gint i;
418
419 for (i = 1; i < argc; ++i) {
420 if (!strcmp(argv[i], "--version")) {
421 print_version();
422 exit(0);
423 } else if (!strcmp(argv[i], "--help")) {
424 print_help();
425 exit(0);
426 } else if (!strcmp(argv[i], "--g-fatal-warnings")) {
427 g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
428 } else if (!strcmp(argv[i], "--replace")) {
429 ob_replace_wm = TRUE;
430 } else if (!strcmp(argv[i], "--sync")) {
431 xsync = TRUE;
432 } else if (!strcmp(argv[i], "--debug")) {
433 ob_debug_show_output(TRUE);
434 } else if (!strcmp(argv[i], "--reconfigure")) {
435 message_and_exit = TRUE;
436 message = &prop_atoms.ob_reconfigure;
437 } else if (!strcmp(argv[i], "--restart")) {
438 message_and_exit = TRUE;
439 message = &prop_atoms.ob_restart;
440 }
441 }
442 }
443
444 void ob_exit_with_error(gchar *msg)
445 {
446 g_critical(msg);
447 session_shutdown(TRUE);
448 exit(EXIT_FAILURE);
449 }
450
451 void ob_restart_other(const gchar *path)
452 {
453 restart_path = g_strdup(path);
454 ob_restart();
455 }
456
457 void ob_restart()
458 {
459 restart = TRUE;
460 ob_exit(0);
461 }
462
463 void ob_reconfigure()
464 {
465 reconfigure = TRUE;
466 ob_exit(0);
467 }
468
469 void ob_exit(gint code)
470 {
471 exitcode = code;
472 ob_main_loop_exit(ob_main_loop);
473 }
474
475 void ob_exit_replace()
476 {
477 exitcode = 0;
478 being_replaced = TRUE;
479 ob_main_loop_exit(ob_main_loop);
480 }
481
482 Cursor ob_cursor(ObCursor cursor)
483 {
484 g_assert(cursor < OB_NUM_CURSORS);
485 return cursors[cursor];
486 }
487
488 KeyCode ob_keycode(ObKey key)
489 {
490 g_assert(key < OB_NUM_KEYS);
491 return keys[key];
492 }
493
494 ObState ob_state()
495 {
496 return state;
497 }
This page took 0.061958 seconds and 5 git commands to generate.