i3
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00001 /* 00002 * vim:ts=8:expandtab 00003 * 00004 * i3 - an improved dynamic tiling window manager 00005 * 00006 * © 2009-2010 Michael Stapelberg and contributors 00007 * 00008 * See file LICENSE for license information. 00009 * 00010 */ 00011 #include <stdio.h> 00012 #include <stdlib.h> 00013 #include <string.h> 00014 #include <sys/types.h> 00015 #include <unistd.h> 00016 #include <stdbool.h> 00017 #include <assert.h> 00018 #include <limits.h> 00019 #include <locale.h> 00020 #include <fcntl.h> 00021 #include <getopt.h> 00022 00023 #include <X11/XKBlib.h> 00024 #include <X11/extensions/XKB.h> 00025 00026 #include <xcb/xcb.h> 00027 #include <xcb/xcb_atom.h> 00028 #include <xcb/xcb_aux.h> 00029 #include <xcb/xcb_event.h> 00030 #include <xcb/xcb_property.h> 00031 #include <xcb/xcb_keysyms.h> 00032 #include <xcb/xcb_icccm.h> 00033 00034 #include <ev.h> 00035 00036 #include "config.h" 00037 #include "data.h" 00038 #include "debug.h" 00039 #include "handlers.h" 00040 #include "click.h" 00041 #include "i3.h" 00042 #include "layout.h" 00043 #include "queue.h" 00044 #include "table.h" 00045 #include "util.h" 00046 #include "xcb.h" 00047 #include "randr.h" 00048 #include "xinerama.h" 00049 #include "manage.h" 00050 #include "ipc.h" 00051 #include "log.h" 00052 #include "sighandler.h" 00053 00054 static int xkb_event_base; 00055 00056 int xkb_current_group; 00057 00058 xcb_connection_t *global_conn; 00059 00060 /* This is the path to i3, copied from argv[0] when starting up */ 00061 char **start_argv; 00062 00063 /* This is our connection to X11 for use with XKB */ 00064 Display *xkbdpy; 00065 00066 xcb_key_symbols_t *keysyms; 00067 00068 /* The list of key bindings */ 00069 struct bindings_head *bindings; 00070 00071 /* The list of exec-lines */ 00072 struct autostarts_head autostarts = TAILQ_HEAD_INITIALIZER(autostarts); 00073 00074 /* The list of assignments */ 00075 struct assignments_head assignments = TAILQ_HEAD_INITIALIZER(assignments); 00076 00077 /* This is a list of Stack_Windows, global, for easier/faster access on expose events */ 00078 struct stack_wins_head stack_wins = SLIST_HEAD_INITIALIZER(stack_wins); 00079 00080 /* The event handlers need to be global because they are accessed by our custom event handler 00081 in handle_button_press(), needed for graphical resizing */ 00082 xcb_event_handlers_t evenths; 00083 xcb_atom_t atoms[NUM_ATOMS]; 00084 00085 xcb_window_t root; 00086 int num_screens = 0; 00087 00088 /* The depth of the root screen (used e.g. for creating new pixmaps later) */ 00089 uint8_t root_depth; 00090 00091 /* We hope that XKB is supported and set this to false */ 00092 bool xkb_supported = true; 00093 00094 /* 00095 * This callback is only a dummy, see xcb_prepare_cb and xcb_check_cb. 00096 * See also man libev(3): "ev_prepare" and "ev_check" - customise your event loop 00097 * 00098 */ 00099 static void xcb_got_event(EV_P_ struct ev_io *w, int revents) { 00100 /* empty, because xcb_prepare_cb and xcb_check_cb are used */ 00101 } 00102 00103 /* 00104 * Flush before blocking (and waiting for new events) 00105 * 00106 */ 00107 static void xcb_prepare_cb(EV_P_ ev_prepare *w, int revents) { 00108 xcb_flush(evenths.c); 00109 } 00110 00111 /* 00112 * Instead of polling the X connection socket we leave this to 00113 * xcb_poll_for_event() which knows better than we can ever know. 00114 * 00115 */ 00116 static void xcb_check_cb(EV_P_ ev_check *w, int revents) { 00117 xcb_generic_event_t *event; 00118 00119 while ((event = xcb_poll_for_event(evenths.c)) != NULL) { 00120 xcb_event_handle(&evenths, event); 00121 free(event); 00122 } 00123 } 00124 00125 /* 00126 * When using xmodmap to change the keyboard mapping, this event 00127 * is only sent via XKB. Therefore, we need this special handler. 00128 * 00129 */ 00130 static void xkb_got_event(EV_P_ struct ev_io *w, int revents) { 00131 DLOG("Handling XKB event\n"); 00132 XkbEvent ev; 00133 00134 /* When using xmodmap, every change (!) gets an own event. 00135 * Therefore, we just read all events and only handle the 00136 * mapping_notify once. */ 00137 bool mapping_changed = false; 00138 while (XPending(xkbdpy)) { 00139 XNextEvent(xkbdpy, (XEvent*)&ev); 00140 /* While we should never receive a non-XKB event, 00141 * better do sanity checking */ 00142 if (ev.type != xkb_event_base) 00143 continue; 00144 00145 if (ev.any.xkb_type == XkbMapNotify) { 00146 mapping_changed = true; 00147 continue; 00148 } 00149 00150 if (ev.any.xkb_type != XkbStateNotify) { 00151 ELOG("Unknown XKB event received (type %d)\n", ev.any.xkb_type); 00152 continue; 00153 } 00154 00155 /* See The XKB Extension: Library Specification, section 14.1 */ 00156 /* We check if the current group (each group contains 00157 * two levels) has been changed. Mode_switch activates 00158 * group XkbGroup2Index */ 00159 if (xkb_current_group == ev.state.group) 00160 continue; 00161 00162 xkb_current_group = ev.state.group; 00163 00164 if (ev.state.group == XkbGroup2Index) { 00165 DLOG("Mode_switch enabled\n"); 00166 grab_all_keys(global_conn, true); 00167 } 00168 00169 if (ev.state.group == XkbGroup1Index) { 00170 DLOG("Mode_switch disabled\n"); 00171 ungrab_all_keys(global_conn); 00172 grab_all_keys(global_conn, false); 00173 } 00174 } 00175 00176 if (!mapping_changed) 00177 return; 00178 00179 DLOG("Keyboard mapping changed, updating keybindings\n"); 00180 xcb_key_symbols_free(keysyms); 00181 keysyms = xcb_key_symbols_alloc(global_conn); 00182 00183 xcb_get_numlock_mask(global_conn); 00184 00185 ungrab_all_keys(global_conn); 00186 DLOG("Re-grabbing...\n"); 00187 translate_keysyms(); 00188 grab_all_keys(global_conn, (xkb_current_group == XkbGroup2Index)); 00189 DLOG("Done\n"); 00190 } 00191 00192 00193 int main(int argc, char *argv[], char *env[]) { 00194 int i, screens, opt; 00195 char *override_configpath = NULL; 00196 bool autostart = true; 00197 bool only_check_config = false; 00198 bool force_xinerama = false; 00199 xcb_connection_t *conn; 00200 xcb_property_handlers_t prophs; 00201 xcb_intern_atom_cookie_t atom_cookies[NUM_ATOMS]; 00202 static struct option long_options[] = { 00203 {"no-autostart", no_argument, 0, 'a'}, 00204 {"config", required_argument, 0, 'c'}, 00205 {"version", no_argument, 0, 'v'}, 00206 {"help", no_argument, 0, 'h'}, 00207 {"force-xinerama", no_argument, 0, 0}, 00208 {0, 0, 0, 0} 00209 }; 00210 int option_index = 0; 00211 00212 setlocale(LC_ALL, ""); 00213 00214 /* Disable output buffering to make redirects in .xsession actually useful for debugging */ 00215 if (!isatty(fileno(stdout))) 00216 setbuf(stdout, NULL); 00217 00218 start_argv = argv; 00219 00220 while ((opt = getopt_long(argc, argv, "c:Cvahld:V", long_options, &option_index)) != -1) { 00221 switch (opt) { 00222 case 'a': 00223 LOG("Autostart disabled using -a\n"); 00224 autostart = false; 00225 break; 00226 case 'c': 00227 override_configpath = sstrdup(optarg); 00228 break; 00229 case 'C': 00230 LOG("Checking configuration file only (-C)\n"); 00231 only_check_config = true; 00232 break; 00233 case 'v': 00234 printf("i3 version " I3_VERSION " © 2009-2010 Michael Stapelberg and contributors\n"); 00235 exit(EXIT_SUCCESS); 00236 case 'V': 00237 set_verbosity(true); 00238 break; 00239 case 'd': 00240 LOG("Enabling debug loglevel %s\n", optarg); 00241 add_loglevel(optarg); 00242 break; 00243 case 'l': 00244 /* DEPRECATED, ignored for the next 3 versions (3.e, 3.f, 3.g) */ 00245 break; 00246 case 0: 00247 if (strcmp(long_options[option_index].name, "force-xinerama") == 0) { 00248 force_xinerama = true; 00249 ELOG("Using Xinerama instead of RandR. This option should be " 00250 "avoided at all cost because it does not refresh the list " 00251 "of screens, so you cannot configure displays at runtime. " 00252 "Please check if your driver really does not support RandR " 00253 "and disable this option as soon as you can.\n"); 00254 break; 00255 } 00256 /* fall-through */ 00257 default: 00258 fprintf(stderr, "Usage: %s [-c configfile] [-d loglevel] [-a] [-v] [-V] [-C]\n", argv[0]); 00259 fprintf(stderr, "\n"); 00260 fprintf(stderr, "-a: disable autostart\n"); 00261 fprintf(stderr, "-v: display version and exit\n"); 00262 fprintf(stderr, "-V: enable verbose mode\n"); 00263 fprintf(stderr, "-d <loglevel>: enable debug loglevel <loglevel>\n"); 00264 fprintf(stderr, "-c <configfile>: use the provided configfile instead\n"); 00265 fprintf(stderr, "-C: check configuration file and exit\n"); 00266 fprintf(stderr, "--force-xinerama: Use Xinerama instead of RandR. This " 00267 "option should only be used if you are stuck with the " 00268 "nvidia closed source driver which does not support RandR.\n"); 00269 exit(EXIT_FAILURE); 00270 } 00271 } 00272 00273 LOG("i3 version " I3_VERSION " starting\n"); 00274 00275 /* Initialize the table data structures for each workspace */ 00276 init_table(); 00277 00278 memset(&evenths, 0, sizeof(xcb_event_handlers_t)); 00279 memset(&prophs, 0, sizeof(xcb_property_handlers_t)); 00280 00281 conn = global_conn = xcb_connect(NULL, &screens); 00282 00283 if (xcb_connection_has_error(conn)) 00284 die("Cannot open display\n"); 00285 00286 /* Get the root window */ 00287 xcb_screen_t *root_screen = xcb_aux_get_screen(conn, screens); 00288 root = root_screen->root; 00289 root_depth = root_screen->root_depth; 00290 00291 load_configuration(conn, override_configpath, false); 00292 if (only_check_config) { 00293 LOG("Done checking configuration file. Exiting.\n"); 00294 exit(0); 00295 } 00296 00297 /* Create the initial container on the first workspace. This used to 00298 * be part of init_table, but since it possibly requires an X 00299 * connection and a loaded configuration (default mode for new 00300 * containers may be stacking, which requires a new window to be 00301 * created), it had to be delayed. */ 00302 expand_table_cols(TAILQ_FIRST(workspaces)); 00303 expand_table_rows(TAILQ_FIRST(workspaces)); 00304 00305 /* Place requests for the atoms we need as soon as possible */ 00306 #define REQUEST_ATOM(name) atom_cookies[name] = xcb_intern_atom(conn, 0, strlen(#name), #name); 00307 00308 REQUEST_ATOM(_NET_SUPPORTED); 00309 REQUEST_ATOM(_NET_WM_STATE_FULLSCREEN); 00310 REQUEST_ATOM(_NET_SUPPORTING_WM_CHECK); 00311 REQUEST_ATOM(_NET_WM_NAME); 00312 REQUEST_ATOM(_NET_WM_STATE); 00313 REQUEST_ATOM(_NET_WM_WINDOW_TYPE); 00314 REQUEST_ATOM(_NET_WM_DESKTOP); 00315 REQUEST_ATOM(_NET_WM_WINDOW_TYPE_DOCK); 00316 REQUEST_ATOM(_NET_WM_WINDOW_TYPE_DIALOG); 00317 REQUEST_ATOM(_NET_WM_WINDOW_TYPE_UTILITY); 00318 REQUEST_ATOM(_NET_WM_WINDOW_TYPE_TOOLBAR); 00319 REQUEST_ATOM(_NET_WM_WINDOW_TYPE_SPLASH); 00320 REQUEST_ATOM(_NET_WM_STRUT_PARTIAL); 00321 REQUEST_ATOM(WM_PROTOCOLS); 00322 REQUEST_ATOM(WM_DELETE_WINDOW); 00323 REQUEST_ATOM(UTF8_STRING); 00324 REQUEST_ATOM(WM_STATE); 00325 REQUEST_ATOM(WM_CLIENT_LEADER); 00326 REQUEST_ATOM(_NET_CURRENT_DESKTOP); 00327 REQUEST_ATOM(_NET_ACTIVE_WINDOW); 00328 REQUEST_ATOM(_NET_WORKAREA); 00329 00330 /* TODO: this has to be more beautiful somewhen */ 00331 int major, minor, error; 00332 00333 major = XkbMajorVersion; 00334 minor = XkbMinorVersion; 00335 00336 int errBase; 00337 00338 if ((xkbdpy = XkbOpenDisplay(getenv("DISPLAY"), &xkb_event_base, &errBase, &major, &minor, &error)) == NULL) { 00339 ELOG("ERROR: XkbOpenDisplay() failed, disabling XKB support\n"); 00340 xkb_supported = false; 00341 } 00342 00343 if (xkb_supported) { 00344 if (fcntl(ConnectionNumber(xkbdpy), F_SETFD, FD_CLOEXEC) == -1) { 00345 fprintf(stderr, "Could not set FD_CLOEXEC on xkbdpy\n"); 00346 return 1; 00347 } 00348 00349 int i1; 00350 if (!XkbQueryExtension(xkbdpy,&i1,&xkb_event_base,&errBase,&major,&minor)) { 00351 fprintf(stderr, "XKB not supported by X-server\n"); 00352 return 1; 00353 } 00354 /* end of ugliness */ 00355 00356 if (!XkbSelectEvents(xkbdpy, XkbUseCoreKbd, 00357 XkbMapNotifyMask | XkbStateNotifyMask, 00358 XkbMapNotifyMask | XkbStateNotifyMask)) { 00359 fprintf(stderr, "Could not set XKB event mask\n"); 00360 return 1; 00361 } 00362 } 00363 00364 /* Initialize event loop using libev */ 00365 struct ev_loop *loop = ev_loop_new(0); 00366 if (loop == NULL) 00367 die("Could not initialize libev. Bad LIBEV_FLAGS?\n"); 00368 00369 struct ev_io *xcb_watcher = scalloc(sizeof(struct ev_io)); 00370 struct ev_io *xkb = scalloc(sizeof(struct ev_io)); 00371 struct ev_check *xcb_check = scalloc(sizeof(struct ev_check)); 00372 struct ev_prepare *xcb_prepare = scalloc(sizeof(struct ev_prepare)); 00373 00374 ev_io_init(xcb_watcher, xcb_got_event, xcb_get_file_descriptor(conn), EV_READ); 00375 ev_io_start(loop, xcb_watcher); 00376 00377 if (xkb_supported) { 00378 ev_io_init(xkb, xkb_got_event, ConnectionNumber(xkbdpy), EV_READ); 00379 ev_io_start(loop, xkb); 00380 00381 /* Flush the buffer so that libev can properly get new events */ 00382 XFlush(xkbdpy); 00383 } 00384 00385 ev_check_init(xcb_check, xcb_check_cb); 00386 ev_check_start(loop, xcb_check); 00387 00388 ev_prepare_init(xcb_prepare, xcb_prepare_cb); 00389 ev_prepare_start(loop, xcb_prepare); 00390 00391 /* Grab the server to delay any events until we enter the eventloop */ 00392 xcb_grab_server(conn); 00393 00394 xcb_event_handlers_init(conn, &evenths); 00395 00396 /* DEBUG: Trap all events and print them */ 00397 for (i = 2; i < 128; ++i) 00398 xcb_event_set_handler(&evenths, i, handle_event, 0); 00399 00400 for (i = 0; i < 256; ++i) 00401 xcb_event_set_error_handler(&evenths, i, (xcb_generic_error_handler_t)handle_event, 0); 00402 00403 /* Expose = an Application should redraw itself, in this case it’s our titlebars. */ 00404 xcb_event_set_expose_handler(&evenths, handle_expose_event, NULL); 00405 00406 /* Key presses are pretty obvious, I think */ 00407 xcb_event_set_key_press_handler(&evenths, handle_key_press, NULL); 00408 00409 /* Enter window = user moved his mouse over the window */ 00410 xcb_event_set_enter_notify_handler(&evenths, handle_enter_notify, NULL); 00411 00412 /* Button press = user pushed a mouse button over one of our windows */ 00413 xcb_event_set_button_press_handler(&evenths, handle_button_press, NULL); 00414 00415 /* Map notify = there is a new window */ 00416 xcb_event_set_map_request_handler(&evenths, handle_map_request, &prophs); 00417 00418 /* Unmap notify = window disappeared. When sent from a client, we don’t manage 00419 it any longer. Usually, the client destroys the window shortly afterwards. */ 00420 xcb_event_set_unmap_notify_handler(&evenths, handle_unmap_notify_event, NULL); 00421 00422 /* Destroy notify is handled the same as unmap notify */ 00423 xcb_event_set_destroy_notify_handler(&evenths, handle_destroy_notify_event, NULL); 00424 00425 /* Configure notify = window’s configuration (geometry, stacking, …). We only need 00426 it to set up ignore the following enter_notify events */ 00427 xcb_event_set_configure_notify_handler(&evenths, handle_configure_event, NULL); 00428 00429 /* Configure request = window tried to change size on its own */ 00430 xcb_event_set_configure_request_handler(&evenths, handle_configure_request, NULL); 00431 00432 /* Motion notify = user moved his cursor (over the root window and may 00433 * cross virtual screen boundaries doing that) */ 00434 xcb_event_set_motion_notify_handler(&evenths, handle_motion_notify, NULL); 00435 00436 /* Mapping notify = keyboard mapping changed (Xmodmap), re-grab bindings */ 00437 xcb_event_set_mapping_notify_handler(&evenths, handle_mapping_notify, NULL); 00438 00439 /* Client message are sent to the root window. The only interesting client message 00440 for us is _NET_WM_STATE, we honour _NET_WM_STATE_FULLSCREEN */ 00441 xcb_event_set_client_message_handler(&evenths, handle_client_message, NULL); 00442 00443 /* Initialize the property handlers */ 00444 xcb_property_handlers_init(&prophs, &evenths); 00445 00446 /* Watch size hints (to obey correct aspect ratio) */ 00447 xcb_property_set_handler(&prophs, WM_NORMAL_HINTS, UINT_MAX, handle_normal_hints, NULL); 00448 00449 /* set event mask */ 00450 uint32_t mask = XCB_CW_EVENT_MASK; 00451 uint32_t values[] = { XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT | 00452 XCB_EVENT_MASK_STRUCTURE_NOTIFY | /* when the user adds a screen (e.g. video 00453 projector), the root window gets a 00454 ConfigureNotify */ 00455 XCB_EVENT_MASK_POINTER_MOTION | 00456 XCB_EVENT_MASK_PROPERTY_CHANGE | 00457 XCB_EVENT_MASK_ENTER_WINDOW }; 00458 xcb_void_cookie_t cookie; 00459 cookie = xcb_change_window_attributes_checked(conn, root, mask, values); 00460 check_error(conn, cookie, "Another window manager seems to be running"); 00461 00462 /* Setup NetWM atoms */ 00463 #define GET_ATOM(name) { \ 00464 xcb_intern_atom_reply_t *reply = xcb_intern_atom_reply(conn, atom_cookies[name], NULL); \ 00465 if (!reply) { \ 00466 ELOG("Could not get atom " #name "\n"); \ 00467 exit(-1); \ 00468 } \ 00469 atoms[name] = reply->atom; \ 00470 free(reply); \ 00471 } 00472 00473 GET_ATOM(_NET_SUPPORTED); 00474 GET_ATOM(_NET_WM_STATE_FULLSCREEN); 00475 GET_ATOM(_NET_SUPPORTING_WM_CHECK); 00476 GET_ATOM(_NET_WM_NAME); 00477 GET_ATOM(_NET_WM_STATE); 00478 GET_ATOM(_NET_WM_WINDOW_TYPE); 00479 GET_ATOM(_NET_WM_DESKTOP); 00480 GET_ATOM(_NET_WM_WINDOW_TYPE_DOCK); 00481 GET_ATOM(_NET_WM_WINDOW_TYPE_DIALOG); 00482 GET_ATOM(_NET_WM_WINDOW_TYPE_UTILITY); 00483 GET_ATOM(_NET_WM_WINDOW_TYPE_TOOLBAR); 00484 GET_ATOM(_NET_WM_WINDOW_TYPE_SPLASH); 00485 GET_ATOM(_NET_WM_STRUT_PARTIAL); 00486 GET_ATOM(WM_PROTOCOLS); 00487 GET_ATOM(WM_DELETE_WINDOW); 00488 GET_ATOM(UTF8_STRING); 00489 GET_ATOM(WM_STATE); 00490 GET_ATOM(WM_CLIENT_LEADER); 00491 GET_ATOM(_NET_CURRENT_DESKTOP); 00492 GET_ATOM(_NET_ACTIVE_WINDOW); 00493 GET_ATOM(_NET_WORKAREA); 00494 00495 xcb_property_set_handler(&prophs, atoms[_NET_WM_WINDOW_TYPE], UINT_MAX, handle_window_type, NULL); 00496 /* TODO: In order to comply with EWMH, we have to watch _NET_WM_STRUT_PARTIAL */ 00497 00498 /* Watch _NET_WM_NAME (= title of the window in UTF-8) property */ 00499 xcb_property_set_handler(&prophs, atoms[_NET_WM_NAME], 128, handle_windowname_change, NULL); 00500 00501 /* Watch WM_TRANSIENT_FOR property (to which client this popup window belongs) */ 00502 xcb_property_set_handler(&prophs, WM_TRANSIENT_FOR, UINT_MAX, handle_transient_for, NULL); 00503 00504 /* Watch WM_NAME (= title of the window in compound text) property for legacy applications */ 00505 xcb_watch_wm_name(&prophs, 128, handle_windowname_change_legacy, NULL); 00506 00507 /* Watch WM_CLASS (= class of the window) */ 00508 xcb_property_set_handler(&prophs, WM_CLASS, 128, handle_windowclass_change, NULL); 00509 00510 /* Watch WM_CLIENT_LEADER (= logical parent window for toolbars etc.) */ 00511 xcb_property_set_handler(&prophs, atoms[WM_CLIENT_LEADER], UINT_MAX, handle_clientleader_change, NULL); 00512 00513 /* Watch WM_HINTS (contains the urgent property) */ 00514 xcb_property_set_handler(&prophs, WM_HINTS, UINT_MAX, handle_hints, NULL); 00515 00516 /* Set up the atoms we support */ 00517 check_error(conn, xcb_change_property_checked(conn, XCB_PROP_MODE_REPLACE, root, atoms[_NET_SUPPORTED], 00518 ATOM, 32, 7, atoms), "Could not set _NET_SUPPORTED"); 00519 /* Set up the window manager’s name */ 00520 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, atoms[_NET_SUPPORTING_WM_CHECK], WINDOW, 32, 1, &root); 00521 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, atoms[_NET_WM_NAME], atoms[UTF8_STRING], 8, strlen("i3"), "i3"); 00522 00523 keysyms = xcb_key_symbols_alloc(conn); 00524 00525 xcb_get_numlock_mask(conn); 00526 00527 translate_keysyms(); 00528 grab_all_keys(conn, false); 00529 00530 int randr_base = -1; 00531 if (force_xinerama) { 00532 initialize_xinerama(conn); 00533 } else { 00534 DLOG("Checking for XRandR...\n"); 00535 initialize_randr(conn, &randr_base); 00536 00537 if (randr_base != -1) 00538 xcb_event_set_handler(&evenths, 00539 randr_base + XCB_RANDR_SCREEN_CHANGE_NOTIFY, 00540 handle_screen_change, 00541 NULL); 00542 } 00543 00544 xcb_flush(conn); 00545 00546 /* Get pointer position to see on which screen we’re starting */ 00547 xcb_query_pointer_reply_t *reply; 00548 if ((reply = xcb_query_pointer_reply(conn, xcb_query_pointer(conn, root), NULL)) == NULL) { 00549 ELOG("Could not get pointer position\n"); 00550 return 1; 00551 } 00552 00553 Output *screen = get_output_containing(reply->root_x, reply->root_y); 00554 if (screen == NULL) { 00555 ELOG("ERROR: No screen at %d x %d, starting on the first screen\n", 00556 reply->root_x, reply->root_y); 00557 screen = get_first_output(); 00558 } 00559 00560 DLOG("Starting on %p\n", screen->current_workspace); 00561 c_ws = screen->current_workspace; 00562 00563 manage_existing_windows(conn, &prophs, root); 00564 00565 /* Create the UNIX domain socket for IPC */ 00566 if (config.ipc_socket_path != NULL) { 00567 int ipc_socket = ipc_create_socket(config.ipc_socket_path); 00568 if (ipc_socket == -1) { 00569 ELOG("Could not create the IPC socket, IPC disabled\n"); 00570 } else { 00571 struct ev_io *ipc_io = scalloc(sizeof(struct ev_io)); 00572 ev_io_init(ipc_io, ipc_new_client, ipc_socket, EV_READ); 00573 ev_io_start(loop, ipc_io); 00574 } 00575 } 00576 00577 /* Handle the events which arrived until now */ 00578 xcb_check_cb(NULL, NULL, 0); 00579 00580 setup_signal_handler(); 00581 00582 /* Ignore SIGPIPE to survive errors when an IPC client disconnects 00583 * while we are sending him a message */ 00584 signal(SIGPIPE, SIG_IGN); 00585 00586 /* Ungrab the server to receive events and enter libev’s eventloop */ 00587 xcb_ungrab_server(conn); 00588 00589 /* Autostarting exec-lines */ 00590 struct Autostart *exec; 00591 if (autostart) { 00592 TAILQ_FOREACH(exec, &autostarts, autostarts) { 00593 LOG("auto-starting %s\n", exec->command); 00594 start_application(exec->command); 00595 } 00596 } 00597 00598 ev_loop(loop, 0); 00599 00600 /* not reached */ 00601 return 0; 00602 }