00001
00002
00003
00004 #include <ev.h>
00005 #include <fcntl.h>
00006 #include <limits.h>
00007 #include "all.h"
00008
00009 static int xkb_event_base;
00010
00011 int xkb_current_group;
00012
00013 extern Con *focused;
00014
00015 char **start_argv;
00016
00017 xcb_connection_t *conn;
00018
00019 xcb_screen_t *root_screen;
00020 xcb_window_t root;
00021 uint8_t root_depth;
00022
00023 struct ev_loop *main_loop;
00024
00025 xcb_key_symbols_t *keysyms;
00026
00027
00028 Display *xlibdpy, *xkbdpy;
00029
00030
00031 struct bindings_head *bindings;
00032
00033
00034 struct autostarts_head autostarts = TAILQ_HEAD_INITIALIZER(autostarts);
00035
00036
00037 struct autostarts_always_head autostarts_always = TAILQ_HEAD_INITIALIZER(autostarts_always);
00038
00039
00040 struct assignments_head assignments = TAILQ_HEAD_INITIALIZER(assignments);
00041
00042
00043
00044 struct ws_assignments_head ws_assignments = TAILQ_HEAD_INITIALIZER(ws_assignments);
00045
00046
00047 bool xcursor_supported = true;
00048 bool xkb_supported = true;
00049
00050
00051
00052
00053
00054
00055 static void xcb_got_event(EV_P_ struct ev_io *w, int revents) {
00056
00057 }
00058
00059
00060
00061
00062
00063 static void xcb_prepare_cb(EV_P_ ev_prepare *w, int revents) {
00064 xcb_flush(conn);
00065 }
00066
00067
00068
00069
00070
00071
00072 static void xcb_check_cb(EV_P_ ev_check *w, int revents) {
00073 xcb_generic_event_t *event;
00074
00075 while ((event = xcb_poll_for_event(conn)) != NULL) {
00076 if (event->response_type == 0) {
00077 if (event_is_ignored(event->sequence, 0))
00078 DLOG("Expected X11 Error received for sequence %x\n", event->sequence);
00079 else {
00080 xcb_generic_error_t *error = (xcb_generic_error_t*)event;
00081 ELOG("X11 Error received! sequence 0x%x, error_code = %d\n",
00082 error->sequence, error->error_code);
00083 }
00084 free(event);
00085 continue;
00086 }
00087
00088
00089 int type = (event->response_type & 0x7F);
00090
00091 handle_event(type, event);
00092
00093 free(event);
00094 }
00095 }
00096
00097
00098
00099
00100
00101
00102
00103 static void xkb_got_event(EV_P_ struct ev_io *w, int revents) {
00104 DLOG("Handling XKB event\n");
00105 XkbEvent ev;
00106
00107
00108
00109
00110 bool mapping_changed = false;
00111 while (XPending(xkbdpy)) {
00112 XNextEvent(xkbdpy, (XEvent*)&ev);
00113
00114
00115 if (ev.type != xkb_event_base)
00116 continue;
00117
00118 if (ev.any.xkb_type == XkbMapNotify) {
00119 mapping_changed = true;
00120 continue;
00121 }
00122
00123 if (ev.any.xkb_type != XkbStateNotify) {
00124 ELOG("Unknown XKB event received (type %d)\n", ev.any.xkb_type);
00125 continue;
00126 }
00127
00128
00129
00130
00131
00132 if (xkb_current_group == ev.state.group)
00133 continue;
00134
00135 xkb_current_group = ev.state.group;
00136
00137 if (ev.state.group == XkbGroup2Index) {
00138 DLOG("Mode_switch enabled\n");
00139 grab_all_keys(conn, true);
00140 }
00141
00142 if (ev.state.group == XkbGroup1Index) {
00143 DLOG("Mode_switch disabled\n");
00144 ungrab_all_keys(conn);
00145 grab_all_keys(conn, false);
00146 }
00147 }
00148
00149 if (!mapping_changed)
00150 return;
00151
00152 DLOG("Keyboard mapping changed, updating keybindings\n");
00153 xcb_key_symbols_free(keysyms);
00154 keysyms = xcb_key_symbols_alloc(conn);
00155
00156 xcb_get_numlock_mask(conn);
00157
00158 ungrab_all_keys(conn);
00159 DLOG("Re-grabbing...\n");
00160 translate_keysyms();
00161 grab_all_keys(conn, (xkb_current_group == XkbGroup2Index));
00162 DLOG("Done\n");
00163 }
00164
00165 int main(int argc, char *argv[]) {
00166
00167 int screens;
00168 char *override_configpath = NULL;
00169 bool autostart = true;
00170 char *layout_path = NULL;
00171 bool delete_layout_path = false;
00172 bool only_check_config = false;
00173 bool force_xinerama = false;
00174 bool disable_signalhandler = false;
00175 static struct option long_options[] = {
00176 {"no-autostart", no_argument, 0, 'a'},
00177 {"config", required_argument, 0, 'c'},
00178 {"version", no_argument, 0, 'v'},
00179 {"help", no_argument, 0, 'h'},
00180 {"layout", required_argument, 0, 'L'},
00181 {"restart", required_argument, 0, 0},
00182 {"force-xinerama", no_argument, 0, 0},
00183 {"disable-signalhandler", no_argument, 0, 0},
00184 {0, 0, 0, 0}
00185 };
00186 int option_index = 0, opt;
00187
00188 setlocale(LC_ALL, "");
00189
00190
00191 if (!isatty(fileno(stdout)))
00192 setbuf(stdout, NULL);
00193
00194 init_logging();
00195
00196 start_argv = argv;
00197
00198 while ((opt = getopt_long(argc, argv, "c:CvaL:hld:V", long_options, &option_index)) != -1) {
00199 switch (opt) {
00200 case 'a':
00201 LOG("Autostart disabled using -a\n");
00202 autostart = false;
00203 break;
00204 case 'L':
00205 FREE(layout_path);
00206 layout_path = sstrdup(optarg);
00207 delete_layout_path = false;
00208 break;
00209 case 'c':
00210 FREE(override_configpath);
00211 override_configpath = sstrdup(optarg);
00212 break;
00213 case 'C':
00214 LOG("Checking configuration file only (-C)\n");
00215 only_check_config = true;
00216 break;
00217 case 'v':
00218 printf("i3 version " I3_VERSION " © 2009-2011 Michael Stapelberg and contributors\n");
00219 exit(EXIT_SUCCESS);
00220 case 'V':
00221 set_verbosity(true);
00222 break;
00223 case 'd':
00224 LOG("Enabling debug loglevel %s\n", optarg);
00225 add_loglevel(optarg);
00226 break;
00227 case 'l':
00228
00229 break;
00230 case 0:
00231 if (strcmp(long_options[option_index].name, "force-xinerama") == 0) {
00232 force_xinerama = true;
00233 ELOG("Using Xinerama instead of RandR. This option should be "
00234 "avoided at all cost because it does not refresh the list "
00235 "of screens, so you cannot configure displays at runtime. "
00236 "Please check if your driver really does not support RandR "
00237 "and disable this option as soon as you can.\n");
00238 break;
00239 } else if (strcmp(long_options[option_index].name, "disable-signalhandler") == 0) {
00240 disable_signalhandler = true;
00241 break;
00242 } else if (strcmp(long_options[option_index].name, "restart") == 0) {
00243 FREE(layout_path);
00244 layout_path = sstrdup(optarg);
00245 delete_layout_path = true;
00246 break;
00247 }
00248
00249 default:
00250 fprintf(stderr, "Usage: %s [-c configfile] [-d loglevel] [-a] [-v] [-V] [-C]\n", argv[0]);
00251 fprintf(stderr, "\n");
00252 fprintf(stderr, "-a: disable autostart\n");
00253 fprintf(stderr, "-L <layoutfile>: load the layout from <layoutfile>\n");
00254 fprintf(stderr, "-v: display version and exit\n");
00255 fprintf(stderr, "-V: enable verbose mode\n");
00256 fprintf(stderr, "-d <loglevel>: enable debug loglevel <loglevel>\n");
00257 fprintf(stderr, "-c <configfile>: use the provided configfile instead\n");
00258 fprintf(stderr, "-C: check configuration file and exit\n");
00259 fprintf(stderr, "--force-xinerama: Use Xinerama instead of RandR. This "
00260 "option should only be used if you are stuck with the "
00261 "nvidia closed source driver which does not support RandR.\n");
00262 exit(EXIT_FAILURE);
00263 }
00264 }
00265
00266 LOG("i3 (tree) version " I3_VERSION " starting\n");
00267
00268 conn = xcb_connect(NULL, &screens);
00269 if (xcb_connection_has_error(conn))
00270 errx(EXIT_FAILURE, "Cannot open display\n");
00271
00272
00273
00274
00275 main_loop = EV_DEFAULT;
00276 if (main_loop == NULL)
00277 die("Could not initialize libev. Bad LIBEV_FLAGS?\n");
00278
00279 root_screen = xcb_aux_get_screen(conn, screens);
00280 root = root_screen->root;
00281 root_depth = root_screen->root_depth;
00282 xcb_get_geometry_cookie_t gcookie = xcb_get_geometry(conn, root);
00283
00284 load_configuration(conn, override_configpath, false);
00285 if (only_check_config) {
00286 LOG("Done checking configuration file. Exiting.\n");
00287 exit(0);
00288 }
00289
00290 if (config.ipc_socket_path == NULL) {
00291
00292 if ((config.ipc_socket_path = getenv("I3SOCK")) == NULL)
00293 config.ipc_socket_path = get_process_filename("ipc-socket");
00294 else
00295 config.ipc_socket_path = sstrdup(config.ipc_socket_path);
00296 }
00297
00298 uint32_t mask = XCB_CW_EVENT_MASK;
00299 uint32_t values[] = { XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT |
00300 XCB_EVENT_MASK_STRUCTURE_NOTIFY |
00301
00302
00303 XCB_EVENT_MASK_POINTER_MOTION |
00304 XCB_EVENT_MASK_PROPERTY_CHANGE |
00305 XCB_EVENT_MASK_ENTER_WINDOW };
00306 xcb_void_cookie_t cookie;
00307 cookie = xcb_change_window_attributes_checked(conn, root, mask, values);
00308 check_error(conn, cookie, "Another window manager seems to be running");
00309
00310 xcb_get_geometry_reply_t *greply = xcb_get_geometry_reply(conn, gcookie, NULL);
00311 if (greply == NULL) {
00312 ELOG("Could not get geometry of the root window, exiting\n");
00313 return 1;
00314 }
00315 DLOG("root geometry reply: (%d, %d) %d x %d\n", greply->x, greply->y, greply->width, greply->height);
00316
00317
00318 #define xmacro(atom) \
00319 xcb_intern_atom_cookie_t atom ## _cookie = xcb_intern_atom(conn, 0, strlen(#atom), #atom);
00320 #include "atoms.xmacro"
00321 #undef xmacro
00322
00323
00324 xlibdpy = xkbdpy = XOpenDisplay(NULL);
00325
00326
00327 if (xlibdpy == NULL) {
00328 ELOG("ERROR: XOpenDisplay() failed, disabling libXcursor/XKB support\n");
00329 xcursor_supported = false;
00330 xkb_supported = false;
00331 } else if (fcntl(ConnectionNumber(xlibdpy), F_SETFD, FD_CLOEXEC) == -1) {
00332 ELOG("Could not set FD_CLOEXEC on xkbdpy\n");
00333 return 1;
00334 } else {
00335 xcursor_load_cursors();
00336
00337 }
00338
00339
00340
00341 if (xcursor_supported) {
00342 xcursor_set_root_cursor();
00343 } else {
00344 xcb_cursor_t cursor_id = xcb_generate_id(conn);
00345 i3Font cursor_font = load_font("cursor", false);
00346 int xcb_cursor = xcursor_get_xcb_cursor(XCURSOR_CURSOR_POINTER);
00347 xcb_create_glyph_cursor(conn, cursor_id, cursor_font.id, cursor_font.id,
00348 xcb_cursor, xcb_cursor + 1, 0, 0, 0, 65535, 65535, 65535);
00349 xcb_change_window_attributes(conn, root, XCB_CW_CURSOR, &cursor_id);
00350 xcb_free_cursor(conn, cursor_id);
00351 }
00352
00353 if (xkb_supported) {
00354 int errBase,
00355 major = XkbMajorVersion,
00356 minor = XkbMinorVersion;
00357
00358 if (fcntl(ConnectionNumber(xkbdpy), F_SETFD, FD_CLOEXEC) == -1) {
00359 fprintf(stderr, "Could not set FD_CLOEXEC on xkbdpy\n");
00360 return 1;
00361 }
00362
00363 int i1;
00364 if (!XkbQueryExtension(xkbdpy,&i1,&xkb_event_base,&errBase,&major,&minor)) {
00365 fprintf(stderr, "XKB not supported by X-server\n");
00366 return 1;
00367 }
00368
00369
00370 if (!XkbSelectEvents(xkbdpy, XkbUseCoreKbd,
00371 XkbMapNotifyMask | XkbStateNotifyMask,
00372 XkbMapNotifyMask | XkbStateNotifyMask)) {
00373 fprintf(stderr, "Could not set XKB event mask\n");
00374 return 1;
00375 }
00376 }
00377
00378
00379 #define xmacro(name) \
00380 do { \
00381 xcb_intern_atom_reply_t *reply = xcb_intern_atom_reply(conn, name ## _cookie, NULL); \
00382 if (!reply) { \
00383 ELOG("Could not get atom " #name "\n"); \
00384 exit(-1); \
00385 } \
00386 A_ ## name = reply->atom; \
00387 free(reply); \
00388 } while (0);
00389 #include "atoms.xmacro"
00390 #undef xmacro
00391
00392 property_handlers_init();
00393
00394
00395 xcb_atom_t supported_atoms[] = {
00396 #define xmacro(atom) A_ ## atom,
00397 #include "atoms.xmacro"
00398 #undef xmacro
00399 };
00400 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, A__NET_SUPPORTED, A_ATOM, 32, 15, supported_atoms);
00401
00402 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, A__NET_SUPPORTING_WM_CHECK, A_WINDOW, 32, 1, &root);
00403 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, A__NET_WM_NAME, A_UTF8_STRING, 8, strlen("i3"), "i3");
00404
00405 keysyms = xcb_key_symbols_alloc(conn);
00406
00407 xcb_get_numlock_mask(conn);
00408
00409 translate_keysyms();
00410 grab_all_keys(conn, false);
00411
00412 bool needs_tree_init = true;
00413 if (layout_path) {
00414 LOG("Trying to restore the layout from %s...", layout_path);
00415 needs_tree_init = !tree_restore(layout_path, greply);
00416 if (delete_layout_path)
00417 unlink(layout_path);
00418 free(layout_path);
00419 }
00420 if (needs_tree_init)
00421 tree_init(greply);
00422
00423 free(greply);
00424
00425 if (force_xinerama) {
00426 xinerama_init();
00427 } else {
00428 DLOG("Checking for XRandR...\n");
00429 randr_init(&randr_base);
00430 }
00431
00432 tree_render();
00433
00434
00435 int ipc_socket = ipc_create_socket(config.ipc_socket_path);
00436 if (ipc_socket == -1) {
00437 ELOG("Could not create the IPC socket, IPC disabled\n");
00438 } else {
00439 free(config.ipc_socket_path);
00440 struct ev_io *ipc_io = scalloc(sizeof(struct ev_io));
00441 ev_io_init(ipc_io, ipc_new_client, ipc_socket, EV_READ);
00442 ev_io_start(main_loop, ipc_io);
00443 }
00444
00445
00446 x_set_i3_atoms();
00447
00448 struct ev_io *xcb_watcher = scalloc(sizeof(struct ev_io));
00449 struct ev_io *xkb = scalloc(sizeof(struct ev_io));
00450 struct ev_check *xcb_check = scalloc(sizeof(struct ev_check));
00451 struct ev_prepare *xcb_prepare = scalloc(sizeof(struct ev_prepare));
00452
00453 ev_io_init(xcb_watcher, xcb_got_event, xcb_get_file_descriptor(conn), EV_READ);
00454 ev_io_start(main_loop, xcb_watcher);
00455
00456
00457 if (xkb_supported) {
00458 ev_io_init(xkb, xkb_got_event, ConnectionNumber(xkbdpy), EV_READ);
00459 ev_io_start(main_loop, xkb);
00460
00461
00462 XFlush(xkbdpy);
00463 }
00464
00465 ev_check_init(xcb_check, xcb_check_cb);
00466 ev_check_start(main_loop, xcb_check);
00467
00468 ev_prepare_init(xcb_prepare, xcb_prepare_cb);
00469 ev_prepare_start(main_loop, xcb_prepare);
00470
00471 xcb_flush(conn);
00472
00473 manage_existing_windows(root);
00474
00475 if (!disable_signalhandler)
00476 setup_signal_handler();
00477
00478
00479
00480 signal(SIGPIPE, SIG_IGN);
00481
00482
00483 if (autostart) {
00484 struct Autostart *exec;
00485 TAILQ_FOREACH(exec, &autostarts, autostarts) {
00486 LOG("auto-starting %s\n", exec->command);
00487 start_application(exec->command);
00488 }
00489 }
00490
00491
00492 struct Autostart *exec_always;
00493 TAILQ_FOREACH(exec_always, &autostarts_always, autostarts_always) {
00494 LOG("auto-starting (always!) %s\n", exec_always->command);
00495 start_application(exec_always->command);
00496 }
00497
00498 ev_loop(main_loop, 0);
00499 }