2 * vim:ts=4:sw=4:expandtab
7 static int xkb_event_base;
15 xcb_connection_t *conn;
16 xcb_event_handlers_t evenths;
17 xcb_atom_t atoms[NUM_ATOMS];
22 xcb_key_symbols_t *keysyms;
24 /* The list of key bindings */
25 struct bindings_head *bindings;
27 /* The list of exec-lines */
28 struct autostarts_head autostarts = TAILQ_HEAD_INITIALIZER(autostarts);
30 /* The list of assignments */
31 struct assignments_head assignments = TAILQ_HEAD_INITIALIZER(assignments);
34 * This callback is only a dummy, see xcb_prepare_cb and xcb_check_cb.
35 * See also man libev(3): "ev_prepare" and "ev_check" - customise your event loop
38 static void xcb_got_event(EV_P_ struct ev_io *w, int revents) {
39 /* empty, because xcb_prepare_cb and xcb_check_cb are used */
43 * Flush before blocking (and waiting for new events)
46 static void xcb_prepare_cb(EV_P_ ev_prepare *w, int revents) {
51 * Instead of polling the X connection socket we leave this to
52 * xcb_poll_for_event() which knows better than we can ever know.
55 static void xcb_check_cb(EV_P_ ev_check *w, int revents) {
56 xcb_generic_event_t *event;
58 while ((event = xcb_poll_for_event(conn)) != NULL) {
59 xcb_event_handle(&evenths, event);
64 int handle_map_request(void *unused, xcb_connection_t *conn, xcb_map_request_event_t *event) {
65 xcb_get_window_attributes_cookie_t cookie;
67 cookie = xcb_get_window_attributes_unchecked(conn, event->window);
69 LOG("window = 0x%08x, serial is %d.\n", event->window, event->sequence);
70 //add_ignore_event(event->sequence);
72 manage_window(event->window, cookie, false);
77 int handle_unmap_notify_event(void *data, xcb_connection_t *conn, xcb_unmap_notify_event_t *event) {
78 LOG("unmap event for 0x%08x\n", event->window);
79 Con *con = con_by_window_id(event->window);
81 LOG("Not a managed window, ignoring\n");
90 int handle_expose_event(void *data, xcb_connection_t *conn, xcb_expose_event_t *event) {
93 /* event->count is the number of minimum remaining expose events for this window, so we
94 skip all events but the last one */
95 if (event->count != 0)
97 LOG("expose-event, window = %08x\n", event->window);
99 if ((parent = con_by_frame_id(event->window)) == NULL) {
100 LOG("expose event for unknown window, ignoring\n");
104 TAILQ_FOREACH(con, &(parent->nodes_head), nodes) {
105 LOG("expose for con %p / %s\n", con, con->name);
107 x_draw_decoration(con);
116 void parse_command(const char *command) {
117 printf("received command: %s\n", command);
119 if (strcasecmp(command, "open") == 0)
121 else if (strcasecmp(command, "close") == 0)
123 else if (strcasecmp(command, "split h") == 0)
124 tree_split(focused, HORIZ);
125 else if (strcasecmp(command, "split v") == 0)
126 tree_split(focused, VERT);
127 else if (strcasecmp(command, "level up") == 0)
129 else if (strcasecmp(command, "level down") == 0)
131 else if (strcasecmp(command, "prev h") == 0)
132 tree_next('p', HORIZ);
133 else if (strcasecmp(command, "prev v") == 0)
134 tree_next('p', VERT);
135 else if (strcasecmp(command, "next h") == 0)
136 tree_next('n', HORIZ);
137 else if (strcasecmp(command, "next v") == 0)
138 tree_next('n', VERT);
139 else if (strncasecmp(command, "workspace ", strlen("workspace ")) == 0)
140 workspace_show(command + strlen("workspace "));
142 else if (strcasecmp(command, "move before h") == 0)
143 tree_move('p', HORIZ);
144 else if (strcasecmp(command, "move before v") == 0)
145 tree_move('p', VERT);
146 else if (strcasecmp(command, "move after h") == 0)
147 tree_move('n', HORIZ);
148 else if (strcasecmp(command, "move after v") == 0)
149 tree_move('n', VERT);
150 else if (strncasecmp(command, "restore", strlen("restore")) == 0)
151 tree_append_json(command + strlen("restore "));
152 else if (strncasecmp(command, "exec", strlen("exec")) == 0)
153 start_application(command + strlen("exec "));
154 else if (strcasecmp(command, "restart") == 0)
156 else if (strcasecmp(command, "floating") == 0)
157 toggle_floating_mode(focused, false);
162 if (strcasecmp(command, "prev") == 0)
163 tree_prev(O_CURRENT);
167 int main(int argc, char *argv[]) {
169 char *override_configpath = NULL;
170 bool autostart = true;
171 bool only_check_config = false;
172 bool force_xinerama = false;
173 xcb_intern_atom_cookie_t atom_cookies[NUM_ATOMS];
174 static struct option long_options[] = {
175 {"no-autostart", no_argument, 0, 'a'},
176 {"config", required_argument, 0, 'c'},
177 {"version", no_argument, 0, 'v'},
178 {"help", no_argument, 0, 'h'},
179 {"force-xinerama", no_argument, 0, 0},
182 int option_index = 0, opt;
184 setlocale(LC_ALL, "");
186 /* Disable output buffering to make redirects in .xsession actually useful for debugging */
187 if (!isatty(fileno(stdout)))
188 setbuf(stdout, NULL);
192 while ((opt = getopt_long(argc, argv, "c:Cvahld:V", long_options, &option_index)) != -1) {
195 LOG("Autostart disabled using -a\n");
199 override_configpath = sstrdup(optarg);
202 LOG("Checking configuration file only (-C)\n");
203 only_check_config = true;
206 printf("i3 version " I3_VERSION " © 2009 Michael Stapelberg and contributors\n");
212 LOG("Enabling debug loglevel %s\n", optarg);
213 add_loglevel(optarg);
216 /* DEPRECATED, ignored for the next 3 versions (3.e, 3.f, 3.g) */
219 if (strcmp(long_options[option_index].name, "force-xinerama") == 0) {
220 force_xinerama = true;
221 ELOG("Using Xinerama instead of RandR. This option should be "
222 "avoided at all cost because it does not refresh the list "
223 "of screens, so you cannot configure displays at runtime. "
224 "Please check if your driver really does not support RandR "
225 "and disable this option as soon as you can.\n");
230 fprintf(stderr, "Usage: %s [-c configfile] [-d loglevel] [-a] [-v] [-V] [-C]\n", argv[0]);
231 fprintf(stderr, "\n");
232 fprintf(stderr, "-a: disable autostart\n");
233 fprintf(stderr, "-v: display version and exit\n");
234 fprintf(stderr, "-V: enable verbose mode\n");
235 fprintf(stderr, "-d <loglevel>: enable debug loglevel <loglevel>\n");
236 fprintf(stderr, "-c <configfile>: use the provided configfile instead\n");
237 fprintf(stderr, "-C: check configuration file and exit\n");
238 fprintf(stderr, "--force-xinerama: Use Xinerama instead of RandR. This "
239 "option should only be used if you are stuck with the "
240 "nvidia closed source driver which does not support RandR.\n");
245 LOG("i3 (tree) version " I3_VERSION " starting\n");
247 conn = xcb_connect(NULL, &screens);
248 if (xcb_connection_has_error(conn))
249 errx(EXIT_FAILURE, "Cannot open display\n");
251 load_configuration(conn, override_configpath, false);
252 if (only_check_config) {
253 LOG("Done checking configuration file. Exiting.\n");
257 xcb_screen_t *root_screen = xcb_aux_get_screen(conn, screens);
258 root = root_screen->root;
259 root_depth = root_screen->root_depth;
261 uint32_t mask = XCB_CW_EVENT_MASK;
262 uint32_t values[] = { XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT |
263 XCB_EVENT_MASK_STRUCTURE_NOTIFY | /* when the user adds a screen (e.g. video
264 projector), the root window gets a
266 XCB_EVENT_MASK_POINTER_MOTION |
267 XCB_EVENT_MASK_PROPERTY_CHANGE |
268 XCB_EVENT_MASK_ENTER_WINDOW };
269 xcb_void_cookie_t cookie;
270 cookie = xcb_change_window_attributes_checked(conn, root, mask, values);
271 check_error(conn, cookie, "Another window manager seems to be running");
273 /* Place requests for the atoms we need as soon as possible */
274 #define REQUEST_ATOM(name) atom_cookies[name] = xcb_intern_atom(conn, 0, strlen(#name), #name);
276 REQUEST_ATOM(_NET_SUPPORTED);
277 REQUEST_ATOM(_NET_WM_STATE_FULLSCREEN);
278 REQUEST_ATOM(_NET_SUPPORTING_WM_CHECK);
279 REQUEST_ATOM(_NET_WM_NAME);
280 REQUEST_ATOM(_NET_WM_STATE);
281 REQUEST_ATOM(_NET_WM_WINDOW_TYPE);
282 REQUEST_ATOM(_NET_WM_DESKTOP);
283 REQUEST_ATOM(_NET_WM_WINDOW_TYPE_DOCK);
284 REQUEST_ATOM(_NET_WM_WINDOW_TYPE_DIALOG);
285 REQUEST_ATOM(_NET_WM_WINDOW_TYPE_UTILITY);
286 REQUEST_ATOM(_NET_WM_WINDOW_TYPE_TOOLBAR);
287 REQUEST_ATOM(_NET_WM_WINDOW_TYPE_SPLASH);
288 REQUEST_ATOM(_NET_WM_STRUT_PARTIAL);
289 REQUEST_ATOM(WM_PROTOCOLS);
290 REQUEST_ATOM(WM_DELETE_WINDOW);
291 REQUEST_ATOM(UTF8_STRING);
292 REQUEST_ATOM(WM_STATE);
293 REQUEST_ATOM(WM_CLIENT_LEADER);
294 REQUEST_ATOM(_NET_CURRENT_DESKTOP);
295 REQUEST_ATOM(_NET_ACTIVE_WINDOW);
296 REQUEST_ATOM(_NET_WORKAREA);
299 xcb_event_handlers_init(conn, &evenths);
300 xcb_event_set_key_press_handler(&evenths, handle_key_press, NULL);
302 xcb_event_set_button_press_handler(&evenths, handle_button_press, NULL);
304 xcb_event_set_map_request_handler(&evenths, handle_map_request, NULL);
306 xcb_event_set_unmap_notify_handler(&evenths, handle_unmap_notify_event, NULL);
307 //xcb_event_set_destroy_notify_handler(&evenths, handle_destroy_notify_event, NULL);
309 xcb_event_set_expose_handler(&evenths, handle_expose_event, NULL);
311 /* Setup NetWM atoms */
312 #define GET_ATOM(name) \
314 xcb_intern_atom_reply_t *reply = xcb_intern_atom_reply(conn, atom_cookies[name], NULL); \
316 ELOG("Could not get atom " #name "\n"); \
319 atoms[name] = reply->atom; \
323 GET_ATOM(_NET_SUPPORTED);
324 GET_ATOM(_NET_WM_STATE_FULLSCREEN);
325 GET_ATOM(_NET_SUPPORTING_WM_CHECK);
326 GET_ATOM(_NET_WM_NAME);
327 GET_ATOM(_NET_WM_STATE);
328 GET_ATOM(_NET_WM_WINDOW_TYPE);
329 GET_ATOM(_NET_WM_DESKTOP);
330 GET_ATOM(_NET_WM_WINDOW_TYPE_DOCK);
331 GET_ATOM(_NET_WM_WINDOW_TYPE_DIALOG);
332 GET_ATOM(_NET_WM_WINDOW_TYPE_UTILITY);
333 GET_ATOM(_NET_WM_WINDOW_TYPE_TOOLBAR);
334 GET_ATOM(_NET_WM_WINDOW_TYPE_SPLASH);
335 GET_ATOM(_NET_WM_STRUT_PARTIAL);
336 GET_ATOM(WM_PROTOCOLS);
337 GET_ATOM(WM_DELETE_WINDOW);
338 GET_ATOM(UTF8_STRING);
340 GET_ATOM(WM_CLIENT_LEADER);
341 GET_ATOM(_NET_CURRENT_DESKTOP);
342 GET_ATOM(_NET_ACTIVE_WINDOW);
343 GET_ATOM(_NET_WORKAREA);
345 keysyms = xcb_key_symbols_alloc(conn);
347 xcb_get_numlock_mask(conn);
350 grab_all_keys(conn, false);
353 if (force_xinerama) {
356 DLOG("Checking for XRandR...\n");
357 randr_init(&randr_base);
360 xcb_event_set_handler(&evenths,
361 randr_base + XCB_RANDR_SCREEN_CHANGE_NOTIFY,
362 handle_screen_change,
371 /* proof-of-concept for assignments */
372 Con *ws = workspace_get("3");
374 Match *current_swallow = scalloc(sizeof(Match));
375 TAILQ_INSERT_TAIL(&(ws->swallow_head), current_swallow, matches);
377 current_swallow->insert_where = M_ACTIVE;
378 current_swallow->class = strdup("xterm");
380 struct ev_loop *loop = ev_loop_new(0);
382 die("Could not initialize libev. Bad LIBEV_FLAGS?\n");
384 /* Create the UNIX domain socket for IPC */
385 if (config.ipc_socket_path != NULL) {
386 int ipc_socket = ipc_create_socket(config.ipc_socket_path);
387 if (ipc_socket == -1) {
388 ELOG("Could not create the IPC socket, IPC disabled\n");
390 struct ev_io *ipc_io = scalloc(sizeof(struct ev_io));
391 ev_io_init(ipc_io, ipc_new_client, ipc_socket, EV_READ);
392 ev_io_start(loop, ipc_io);
396 struct ev_io *xcb_watcher = scalloc(sizeof(struct ev_io));
397 struct ev_check *xcb_check = scalloc(sizeof(struct ev_check));
398 struct ev_prepare *xcb_prepare = scalloc(sizeof(struct ev_prepare));
400 ev_io_init(xcb_watcher, xcb_got_event, xcb_get_file_descriptor(conn), EV_READ);
401 ev_io_start(loop, xcb_watcher);
403 ev_check_init(xcb_check, xcb_check_cb);
404 ev_check_start(loop, xcb_check);
406 ev_prepare_init(xcb_prepare, xcb_prepare_cb);
407 ev_prepare_start(loop, xcb_prepare);
411 manage_existing_windows(root);