2 * vim:ts=4:sw=4:expandtab
8 static int xkb_event_base;
10 int xkb_current_group;
16 xcb_connection_t *conn;
17 xcb_event_handlers_t evenths;
18 xcb_property_handlers_t prophs;
19 xcb_atom_t atoms[NUM_ATOMS];
24 xcb_key_symbols_t *keysyms;
26 /* The list of key bindings */
27 struct bindings_head *bindings;
29 /* The list of exec-lines */
30 struct autostarts_head autostarts = TAILQ_HEAD_INITIALIZER(autostarts);
32 /* The list of assignments */
33 struct assignments_head assignments = TAILQ_HEAD_INITIALIZER(assignments);
36 * This callback is only a dummy, see xcb_prepare_cb and xcb_check_cb.
37 * See also man libev(3): "ev_prepare" and "ev_check" - customise your event loop
40 static void xcb_got_event(EV_P_ struct ev_io *w, int revents) {
41 /* empty, because xcb_prepare_cb and xcb_check_cb are used */
45 * Flush before blocking (and waiting for new events)
48 static void xcb_prepare_cb(EV_P_ ev_prepare *w, int revents) {
53 * Instead of polling the X connection socket we leave this to
54 * xcb_poll_for_event() which knows better than we can ever know.
57 static void xcb_check_cb(EV_P_ ev_check *w, int revents) {
58 xcb_generic_event_t *event;
60 while ((event = xcb_poll_for_event(conn)) != NULL) {
61 xcb_event_handle(&evenths, event);
66 int main(int argc, char *argv[]) {
67 //parse_cmd("[ foo ] attach, attach ; focus");
69 char *override_configpath = NULL;
70 bool autostart = true;
71 bool only_check_config = false;
72 bool force_xinerama = false;
73 xcb_intern_atom_cookie_t atom_cookies[NUM_ATOMS];
74 static struct option long_options[] = {
75 {"no-autostart", no_argument, 0, 'a'},
76 {"config", required_argument, 0, 'c'},
77 {"version", no_argument, 0, 'v'},
78 {"help", no_argument, 0, 'h'},
79 {"force-xinerama", no_argument, 0, 0},
82 int option_index = 0, opt;
84 setlocale(LC_ALL, "");
86 /* Disable output buffering to make redirects in .xsession actually useful for debugging */
87 if (!isatty(fileno(stdout)))
92 while ((opt = getopt_long(argc, argv, "c:Cvahld:V", long_options, &option_index)) != -1) {
95 LOG("Autostart disabled using -a\n");
99 override_configpath = sstrdup(optarg);
102 LOG("Checking configuration file only (-C)\n");
103 only_check_config = true;
106 printf("i3 version " I3_VERSION " © 2009 Michael Stapelberg and contributors\n");
112 LOG("Enabling debug loglevel %s\n", optarg);
113 add_loglevel(optarg);
116 /* DEPRECATED, ignored for the next 3 versions (3.e, 3.f, 3.g) */
119 if (strcmp(long_options[option_index].name, "force-xinerama") == 0) {
120 force_xinerama = true;
121 ELOG("Using Xinerama instead of RandR. This option should be "
122 "avoided at all cost because it does not refresh the list "
123 "of screens, so you cannot configure displays at runtime. "
124 "Please check if your driver really does not support RandR "
125 "and disable this option as soon as you can.\n");
130 fprintf(stderr, "Usage: %s [-c configfile] [-d loglevel] [-a] [-v] [-V] [-C]\n", argv[0]);
131 fprintf(stderr, "\n");
132 fprintf(stderr, "-a: disable autostart\n");
133 fprintf(stderr, "-v: display version and exit\n");
134 fprintf(stderr, "-V: enable verbose mode\n");
135 fprintf(stderr, "-d <loglevel>: enable debug loglevel <loglevel>\n");
136 fprintf(stderr, "-c <configfile>: use the provided configfile instead\n");
137 fprintf(stderr, "-C: check configuration file and exit\n");
138 fprintf(stderr, "--force-xinerama: Use Xinerama instead of RandR. This "
139 "option should only be used if you are stuck with the "
140 "nvidia closed source driver which does not support RandR.\n");
145 LOG("i3 (tree) version " I3_VERSION " starting\n");
147 conn = xcb_connect(NULL, &screens);
148 if (xcb_connection_has_error(conn))
149 errx(EXIT_FAILURE, "Cannot open display\n");
151 load_configuration(conn, override_configpath, false);
152 if (only_check_config) {
153 LOG("Done checking configuration file. Exiting.\n");
157 xcb_screen_t *root_screen = xcb_aux_get_screen(conn, screens);
158 root = root_screen->root;
159 root_depth = root_screen->root_depth;
161 uint32_t mask = XCB_CW_EVENT_MASK;
162 uint32_t values[] = { XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT |
163 XCB_EVENT_MASK_STRUCTURE_NOTIFY | /* when the user adds a screen (e.g. video
164 projector), the root window gets a
166 XCB_EVENT_MASK_POINTER_MOTION |
167 XCB_EVENT_MASK_PROPERTY_CHANGE |
168 XCB_EVENT_MASK_ENTER_WINDOW };
169 xcb_void_cookie_t cookie;
170 cookie = xcb_change_window_attributes_checked(conn, root, mask, values);
171 check_error(conn, cookie, "Another window manager seems to be running");
173 /* Place requests for the atoms we need as soon as possible */
174 #define REQUEST_ATOM(name) atom_cookies[name] = xcb_intern_atom(conn, 0, strlen(#name), #name);
176 REQUEST_ATOM(_NET_SUPPORTED);
177 REQUEST_ATOM(_NET_WM_STATE_FULLSCREEN);
178 REQUEST_ATOM(_NET_SUPPORTING_WM_CHECK);
179 REQUEST_ATOM(_NET_WM_NAME);
180 REQUEST_ATOM(_NET_WM_STATE);
181 REQUEST_ATOM(_NET_WM_WINDOW_TYPE);
182 REQUEST_ATOM(_NET_WM_DESKTOP);
183 REQUEST_ATOM(_NET_WM_WINDOW_TYPE_DOCK);
184 REQUEST_ATOM(_NET_WM_WINDOW_TYPE_DIALOG);
185 REQUEST_ATOM(_NET_WM_WINDOW_TYPE_UTILITY);
186 REQUEST_ATOM(_NET_WM_WINDOW_TYPE_TOOLBAR);
187 REQUEST_ATOM(_NET_WM_WINDOW_TYPE_SPLASH);
188 REQUEST_ATOM(_NET_WM_STRUT_PARTIAL);
189 REQUEST_ATOM(WM_PROTOCOLS);
190 REQUEST_ATOM(WM_DELETE_WINDOW);
191 REQUEST_ATOM(UTF8_STRING);
192 REQUEST_ATOM(WM_STATE);
193 REQUEST_ATOM(WM_CLIENT_LEADER);
194 REQUEST_ATOM(_NET_CURRENT_DESKTOP);
195 REQUEST_ATOM(_NET_ACTIVE_WINDOW);
196 REQUEST_ATOM(_NET_WORKAREA);
198 memset(&evenths, 0, sizeof(xcb_event_handlers_t));
199 memset(&prophs, 0, sizeof(xcb_property_handlers_t));
201 xcb_event_handlers_init(conn, &evenths);
202 xcb_property_handlers_init(&prophs, &evenths);
203 xcb_event_set_key_press_handler(&evenths, handle_key_press, NULL);
205 xcb_event_set_button_press_handler(&evenths, handle_button_press, NULL);
207 xcb_event_set_map_request_handler(&evenths, handle_map_request, NULL);
209 xcb_event_set_unmap_notify_handler(&evenths, handle_unmap_notify_event, NULL);
210 xcb_event_set_destroy_notify_handler(&evenths, handle_destroy_notify_event, NULL);
212 xcb_event_set_expose_handler(&evenths, handle_expose_event, NULL);
214 /* Enter window = user moved his mouse over the window */
215 xcb_event_set_enter_notify_handler(&evenths, handle_enter_notify, NULL);
217 /* Client message are sent to the root window. The only interesting client message
218 for us is _NET_WM_STATE, we honour _NET_WM_STATE_FULLSCREEN */
219 xcb_event_set_client_message_handler(&evenths, handle_client_message, NULL);
221 /* Setup NetWM atoms */
222 #define GET_ATOM(name) \
224 xcb_intern_atom_reply_t *reply = xcb_intern_atom_reply(conn, atom_cookies[name], NULL); \
226 ELOG("Could not get atom " #name "\n"); \
229 atoms[name] = reply->atom; \
233 GET_ATOM(_NET_SUPPORTED);
234 GET_ATOM(_NET_WM_STATE_FULLSCREEN);
235 GET_ATOM(_NET_SUPPORTING_WM_CHECK);
236 GET_ATOM(_NET_WM_NAME);
237 GET_ATOM(_NET_WM_STATE);
238 GET_ATOM(_NET_WM_WINDOW_TYPE);
239 GET_ATOM(_NET_WM_DESKTOP);
240 GET_ATOM(_NET_WM_WINDOW_TYPE_DOCK);
241 GET_ATOM(_NET_WM_WINDOW_TYPE_DIALOG);
242 GET_ATOM(_NET_WM_WINDOW_TYPE_UTILITY);
243 GET_ATOM(_NET_WM_WINDOW_TYPE_TOOLBAR);
244 GET_ATOM(_NET_WM_WINDOW_TYPE_SPLASH);
245 GET_ATOM(_NET_WM_STRUT_PARTIAL);
246 GET_ATOM(WM_PROTOCOLS);
247 GET_ATOM(WM_DELETE_WINDOW);
248 GET_ATOM(UTF8_STRING);
250 GET_ATOM(WM_CLIENT_LEADER);
251 GET_ATOM(_NET_CURRENT_DESKTOP);
252 GET_ATOM(_NET_ACTIVE_WINDOW);
253 GET_ATOM(_NET_WORKAREA);
255 /* Watch _NET_WM_NAME (title of the window encoded in UTF-8) */
256 xcb_property_set_handler(&prophs, atoms[_NET_WM_NAME], 128, handle_windowname_change, NULL);
258 /* Watch WM_HINTS (contains the urgent property) */
259 xcb_property_set_handler(&prophs, WM_HINTS, UINT_MAX, handle_hints, NULL);
261 /* Watch WM_NAME (title of the window encoded in COMPOUND_TEXT) */
262 xcb_watch_wm_name(&prophs, 128, handle_windowname_change_legacy, NULL);
264 /* Set up the atoms we support */
265 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, atoms[_NET_SUPPORTED], ATOM, 32, 7, atoms);
266 /* Set up the window manager’s name */
267 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, atoms[_NET_SUPPORTING_WM_CHECK], WINDOW, 32, 1, &root);
268 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, atoms[_NET_WM_NAME], atoms[UTF8_STRING], 8, strlen("i3"), "i3");
270 keysyms = xcb_key_symbols_alloc(conn);
272 xcb_get_numlock_mask(conn);
275 grab_all_keys(conn, false);
278 if (force_xinerama) {
281 DLOG("Checking for XRandR...\n");
282 randr_init(&randr_base);
285 xcb_event_set_handler(&evenths,
286 randr_base + XCB_RANDR_SCREEN_CHANGE_NOTIFY,
287 handle_screen_change,
296 /* proof-of-concept for assignments */
297 Con *ws = workspace_get("3");
299 Match *current_swallow = scalloc(sizeof(Match));
300 TAILQ_INSERT_TAIL(&(ws->swallow_head), current_swallow, matches);
302 current_swallow->insert_where = M_ACTIVE;
303 current_swallow->class = strdup("xterm");
305 struct ev_loop *loop = ev_loop_new(0);
307 die("Could not initialize libev. Bad LIBEV_FLAGS?\n");
309 /* Create the UNIX domain socket for IPC */
310 if (config.ipc_socket_path != NULL) {
311 int ipc_socket = ipc_create_socket(config.ipc_socket_path);
312 if (ipc_socket == -1) {
313 ELOG("Could not create the IPC socket, IPC disabled\n");
315 struct ev_io *ipc_io = scalloc(sizeof(struct ev_io));
316 ev_io_init(ipc_io, ipc_new_client, ipc_socket, EV_READ);
317 ev_io_start(loop, ipc_io);
321 struct ev_io *xcb_watcher = scalloc(sizeof(struct ev_io));
322 struct ev_check *xcb_check = scalloc(sizeof(struct ev_check));
323 struct ev_prepare *xcb_prepare = scalloc(sizeof(struct ev_prepare));
325 ev_io_init(xcb_watcher, xcb_got_event, xcb_get_file_descriptor(conn), EV_READ);
326 ev_io_start(loop, xcb_watcher);
328 ev_check_init(xcb_check, xcb_check_cb);
329 ev_check_start(loop, xcb_check);
331 ev_prepare_init(xcb_prepare, xcb_prepare_cb);
332 ev_prepare_start(loop, xcb_prepare);
336 manage_existing_windows(root);