/* * vim:ts=4:sw=4:expandtab */ #include #include #include #include "all.h" static int xkb_event_base; int xkb_current_group; extern Con *focused; char **start_argv; xcb_connection_t *conn; xcb_event_handlers_t evenths; xcb_property_handlers_t prophs; xcb_atom_t atoms[NUM_ATOMS]; xcb_window_t root; uint8_t root_depth; xcb_key_symbols_t *keysyms; /* Those are our connections to X11 for use with libXcursor and XKB */ Display *xlibdpy, *xkbdpy; /* The list of key bindings */ struct bindings_head *bindings; /* The list of exec-lines */ struct autostarts_head autostarts = TAILQ_HEAD_INITIALIZER(autostarts); /* The list of assignments */ struct assignments_head assignments = TAILQ_HEAD_INITIALIZER(assignments); /* We hope that those are supported and set them to true */ bool xcursor_supported = true; bool xkb_supported = true; /* * This callback is only a dummy, see xcb_prepare_cb and xcb_check_cb. * See also man libev(3): "ev_prepare" and "ev_check" - customise your event loop * */ static void xcb_got_event(EV_P_ struct ev_io *w, int revents) { /* empty, because xcb_prepare_cb and xcb_check_cb are used */ } /* * Flush before blocking (and waiting for new events) * */ static void xcb_prepare_cb(EV_P_ ev_prepare *w, int revents) { xcb_flush(conn); } /* * Instead of polling the X connection socket we leave this to * xcb_poll_for_event() which knows better than we can ever know. * */ static void xcb_check_cb(EV_P_ ev_check *w, int revents) { xcb_generic_event_t *event; while ((event = xcb_poll_for_event(conn)) != NULL) { xcb_event_handle(&evenths, event); free(event); } } int main(int argc, char *argv[]) { //parse_cmd("[ foo ] attach, attach ; focus"); int screens; char *override_configpath = NULL; bool autostart = true; char *layout_path = NULL; bool delete_layout_path; bool only_check_config = false; bool force_xinerama = false; xcb_intern_atom_cookie_t atom_cookies[NUM_ATOMS]; static struct option long_options[] = { {"no-autostart", no_argument, 0, 'a'}, {"config", required_argument, 0, 'c'}, {"version", no_argument, 0, 'v'}, {"help", no_argument, 0, 'h'}, {"layout", required_argument, 0, 'L'}, {"restart", required_argument, 0, 0}, {"force-xinerama", no_argument, 0, 0}, {0, 0, 0, 0} }; int option_index = 0, opt; setlocale(LC_ALL, ""); /* Disable output buffering to make redirects in .xsession actually useful for debugging */ if (!isatty(fileno(stdout))) setbuf(stdout, NULL); config.ipc_socket_path = getenv("I3SOCK"); start_argv = argv; while ((opt = getopt_long(argc, argv, "c:CvaL:hld:V", long_options, &option_index)) != -1) { switch (opt) { case 'a': LOG("Autostart disabled using -a\n"); autostart = false; break; case 'L': FREE(layout_path); layout_path = sstrdup(optarg); delete_layout_path = false; break; case 'c': FREE(override_configpath); override_configpath = sstrdup(optarg); break; case 'C': LOG("Checking configuration file only (-C)\n"); only_check_config = true; break; case 'v': printf("i3 version " I3_VERSION " © 2009 Michael Stapelberg and contributors\n"); exit(EXIT_SUCCESS); case 'V': set_verbosity(true); break; case 'd': LOG("Enabling debug loglevel %s\n", optarg); add_loglevel(optarg); break; case 'l': /* DEPRECATED, ignored for the next 3 versions (3.e, 3.f, 3.g) */ break; case 0: if (strcmp(long_options[option_index].name, "force-xinerama") == 0) { force_xinerama = true; ELOG("Using Xinerama instead of RandR. This option should be " "avoided at all cost because it does not refresh the list " "of screens, so you cannot configure displays at runtime. " "Please check if your driver really does not support RandR " "and disable this option as soon as you can.\n"); break; } else if (strcmp(long_options[option_index].name, "restart") == 0) { FREE(layout_path); layout_path = sstrdup(optarg); delete_layout_path = true; break; } /* fall-through */ default: fprintf(stderr, "Usage: %s [-c configfile] [-d loglevel] [-a] [-v] [-V] [-C]\n", argv[0]); fprintf(stderr, "\n"); fprintf(stderr, "-a: disable autostart\n"); fprintf(stderr, "-L : load the layout from \n"); fprintf(stderr, "-v: display version and exit\n"); fprintf(stderr, "-V: enable verbose mode\n"); fprintf(stderr, "-d : enable debug loglevel \n"); fprintf(stderr, "-c : use the provided configfile instead\n"); fprintf(stderr, "-C: check configuration file and exit\n"); fprintf(stderr, "--force-xinerama: Use Xinerama instead of RandR. This " "option should only be used if you are stuck with the " "nvidia closed source driver which does not support RandR.\n"); exit(EXIT_FAILURE); } } LOG("i3 (tree) version " I3_VERSION " starting\n"); conn = xcb_connect(NULL, &screens); if (xcb_connection_has_error(conn)) errx(EXIT_FAILURE, "Cannot open display\n"); load_configuration(conn, override_configpath, false); if (only_check_config) { LOG("Done checking configuration file. Exiting.\n"); exit(0); } xcb_screen_t *root_screen = xcb_aux_get_screen(conn, screens); root = root_screen->root; root_depth = root_screen->root_depth; uint32_t mask = XCB_CW_EVENT_MASK; uint32_t values[] = { XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT | XCB_EVENT_MASK_STRUCTURE_NOTIFY | /* when the user adds a screen (e.g. video projector), the root window gets a ConfigureNotify */ XCB_EVENT_MASK_POINTER_MOTION | XCB_EVENT_MASK_PROPERTY_CHANGE | XCB_EVENT_MASK_ENTER_WINDOW }; xcb_void_cookie_t cookie; cookie = xcb_change_window_attributes_checked(conn, root, mask, values); check_error(conn, cookie, "Another window manager seems to be running"); /* Place requests for the atoms we need as soon as possible */ #define REQUEST_ATOM(name) atom_cookies[name] = xcb_intern_atom(conn, 0, strlen(#name), #name); REQUEST_ATOM(_NET_SUPPORTED); REQUEST_ATOM(_NET_WM_STATE_FULLSCREEN); REQUEST_ATOM(_NET_SUPPORTING_WM_CHECK); REQUEST_ATOM(_NET_WM_NAME); REQUEST_ATOM(_NET_WM_STATE); REQUEST_ATOM(_NET_WM_WINDOW_TYPE); REQUEST_ATOM(_NET_WM_DESKTOP); REQUEST_ATOM(_NET_WM_WINDOW_TYPE_DOCK); REQUEST_ATOM(_NET_WM_WINDOW_TYPE_DIALOG); REQUEST_ATOM(_NET_WM_WINDOW_TYPE_UTILITY); REQUEST_ATOM(_NET_WM_WINDOW_TYPE_TOOLBAR); REQUEST_ATOM(_NET_WM_WINDOW_TYPE_SPLASH); REQUEST_ATOM(_NET_WM_STRUT_PARTIAL); REQUEST_ATOM(WM_PROTOCOLS); REQUEST_ATOM(WM_DELETE_WINDOW); REQUEST_ATOM(UTF8_STRING); REQUEST_ATOM(WM_STATE); REQUEST_ATOM(WM_CLIENT_LEADER); REQUEST_ATOM(_NET_CURRENT_DESKTOP); REQUEST_ATOM(_NET_ACTIVE_WINDOW); REQUEST_ATOM(_NET_WORKAREA); /* Initialize the Xlib connection */ xlibdpy = xkbdpy = XOpenDisplay(NULL); /* Try to load the X cursors and initialize the XKB extension */ if (xlibdpy == NULL) { ELOG("ERROR: XOpenDisplay() failed, disabling libXcursor/XKB support\n"); xcursor_supported = false; xkb_supported = false; } else if (fcntl(ConnectionNumber(xlibdpy), F_SETFD, FD_CLOEXEC) == -1) { ELOG("Could not set FD_CLOEXEC on xkbdpy\n"); return 1; } else { xcursor_load_cursors(); /*init_xkb();*/ } memset(&evenths, 0, sizeof(xcb_event_handlers_t)); memset(&prophs, 0, sizeof(xcb_property_handlers_t)); xcb_event_handlers_init(conn, &evenths); xcb_property_handlers_init(&prophs, &evenths); xcb_event_set_key_press_handler(&evenths, handle_key_press, NULL); xcb_event_set_button_press_handler(&evenths, handle_button_press, NULL); xcb_event_set_map_request_handler(&evenths, handle_map_request, NULL); xcb_event_set_unmap_notify_handler(&evenths, handle_unmap_notify_event, NULL); xcb_event_set_destroy_notify_handler(&evenths, handle_destroy_notify_event, NULL); xcb_event_set_expose_handler(&evenths, handle_expose_event, NULL); xcb_event_set_motion_notify_handler(&evenths, handle_motion_notify, NULL); /* Enter window = user moved his mouse over the window */ xcb_event_set_enter_notify_handler(&evenths, handle_enter_notify, NULL); /* Client message are sent to the root window. The only interesting client message for us is _NET_WM_STATE, we honour _NET_WM_STATE_FULLSCREEN */ xcb_event_set_client_message_handler(&evenths, handle_client_message, NULL); /* Configure request = window tried to change size on its own */ xcb_event_set_configure_request_handler(&evenths, handle_configure_request, NULL); /* Setup NetWM atoms */ #define GET_ATOM(name) \ do { \ xcb_intern_atom_reply_t *reply = xcb_intern_atom_reply(conn, atom_cookies[name], NULL); \ if (!reply) { \ ELOG("Could not get atom " #name "\n"); \ exit(-1); \ } \ atoms[name] = reply->atom; \ free(reply); \ } while (0) GET_ATOM(_NET_SUPPORTED); GET_ATOM(_NET_WM_STATE_FULLSCREEN); GET_ATOM(_NET_SUPPORTING_WM_CHECK); GET_ATOM(_NET_WM_NAME); GET_ATOM(_NET_WM_STATE); GET_ATOM(_NET_WM_WINDOW_TYPE); GET_ATOM(_NET_WM_DESKTOP); GET_ATOM(_NET_WM_WINDOW_TYPE_DOCK); GET_ATOM(_NET_WM_WINDOW_TYPE_DIALOG); GET_ATOM(_NET_WM_WINDOW_TYPE_UTILITY); GET_ATOM(_NET_WM_WINDOW_TYPE_TOOLBAR); GET_ATOM(_NET_WM_WINDOW_TYPE_SPLASH); GET_ATOM(_NET_WM_STRUT_PARTIAL); GET_ATOM(WM_PROTOCOLS); GET_ATOM(WM_DELETE_WINDOW); GET_ATOM(UTF8_STRING); GET_ATOM(WM_STATE); GET_ATOM(WM_CLIENT_LEADER); GET_ATOM(_NET_CURRENT_DESKTOP); GET_ATOM(_NET_ACTIVE_WINDOW); GET_ATOM(_NET_WORKAREA); /* Watch _NET_WM_NAME (title of the window encoded in UTF-8) */ xcb_property_set_handler(&prophs, atoms[_NET_WM_NAME], 128, handle_windowname_change, NULL); /* Watch WM_HINTS (contains the urgent property) */ xcb_property_set_handler(&prophs, WM_HINTS, UINT_MAX, handle_hints, NULL); /* Watch WM_NAME (title of the window encoded in COMPOUND_TEXT) */ xcb_watch_wm_name(&prophs, 128, handle_windowname_change_legacy, NULL); /* Watch WM_NORMAL_HINTS (aspect ratio, size increments, …) */ xcb_property_set_handler(&prophs, WM_NORMAL_HINTS, UINT_MAX, handle_normal_hints, NULL); /* Watch WM_CLIENT_LEADER (= logical parent window for toolbars etc.) */ xcb_property_set_handler(&prophs, atoms[WM_CLIENT_LEADER], UINT_MAX, handle_clientleader_change, NULL); /* Watch WM_TRANSIENT_FOR property (to which client this popup window belongs) */ xcb_property_set_handler(&prophs, WM_TRANSIENT_FOR, UINT_MAX, handle_transient_for, NULL); /* Set up the atoms we support */ xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, atoms[_NET_SUPPORTED], ATOM, 32, 7, atoms); /* Set up the window manager’s name */ xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, atoms[_NET_SUPPORTING_WM_CHECK], WINDOW, 32, 1, &root); xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, atoms[_NET_WM_NAME], atoms[UTF8_STRING], 8, strlen("i3"), "i3"); keysyms = xcb_key_symbols_alloc(conn); xcb_get_numlock_mask(conn); translate_keysyms(); grab_all_keys(conn, false); bool needs_tree_init = true; if (layout_path) { LOG("Trying to restore the layout from %s...", layout_path); needs_tree_init = !tree_restore(layout_path); if (delete_layout_path) unlink(layout_path); free(layout_path); } if (needs_tree_init) tree_init(); int randr_base; if (force_xinerama) { xinerama_init(); } else { DLOG("Checking for XRandR...\n"); randr_init(&randr_base); xcb_event_set_handler(&evenths, randr_base + XCB_RANDR_SCREEN_CHANGE_NOTIFY, handle_screen_change, NULL); } tree_render(); struct ev_loop *loop = ev_loop_new(0); if (loop == NULL) die("Could not initialize libev. Bad LIBEV_FLAGS?\n"); /* Create the UNIX domain socket for IPC */ if (config.ipc_socket_path != NULL) { int ipc_socket = ipc_create_socket(config.ipc_socket_path); if (ipc_socket == -1) { ELOG("Could not create the IPC socket, IPC disabled\n"); } else { struct ev_io *ipc_io = scalloc(sizeof(struct ev_io)); ev_io_init(ipc_io, ipc_new_client, ipc_socket, EV_READ); ev_io_start(loop, ipc_io); } } struct ev_io *xcb_watcher = scalloc(sizeof(struct ev_io)); struct ev_check *xcb_check = scalloc(sizeof(struct ev_check)); struct ev_prepare *xcb_prepare = scalloc(sizeof(struct ev_prepare)); ev_io_init(xcb_watcher, xcb_got_event, xcb_get_file_descriptor(conn), EV_READ); ev_io_start(loop, xcb_watcher); ev_check_init(xcb_check, xcb_check_cb); ev_check_start(loop, xcb_check); ev_prepare_init(xcb_prepare, xcb_prepare_cb); ev_prepare_start(loop, xcb_prepare); xcb_flush(conn); manage_existing_windows(root); setup_signal_handler(); /* Ignore SIGPIPE to survive errors when an IPC client disconnects * while we are sending him a message */ signal(SIGPIPE, SIG_IGN); /* Autostarting exec-lines */ if (autostart) { struct Autostart *exec; TAILQ_FOREACH(exec, &autostarts, autostarts) { LOG("auto-starting %s\n", exec->command); start_application(exec->command); } } ev_loop(loop, 0); }