2 #define I3__FILE__ "config.c"
4 * vim:ts=4:sw=4:expandtab
6 * i3 - an improved dynamic tiling window manager
7 * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
9 * config.c: Configuration file (calling the parser (src/cfgparse.y) with the
10 * correct path, switching key bindings mode).
15 /* We need Xlib for XStringToKeysym */
18 char *current_configpath = NULL;
20 struct modes_head modes;
21 struct barconfig_head barconfigs = TAILQ_HEAD_INITIALIZER(barconfigs);
24 * Ungrabs all keys, to be called before re-grabbing the keys because of a
25 * mapping_notify event or a configuration file reload
28 void ungrab_all_keys(xcb_connection_t *conn) {
29 DLOG("Ungrabbing all keys\n");
30 xcb_ungrab_key(conn, XCB_GRAB_ANY, root, XCB_BUTTON_MASK_ANY);
33 static void grab_keycode_for_binding(xcb_connection_t *conn, Binding *bind, uint32_t keycode) {
34 DLOG("Grabbing %d\n", keycode);
35 /* Grab the key in all combinations */
36 #define GRAB_KEY(modifier) \
38 xcb_grab_key(conn, 0, root, modifier, keycode, \
39 XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC); \
41 int mods = bind->mods;
42 if ((bind->mods & BIND_MODE_SWITCH) != 0) {
43 mods &= ~BIND_MODE_SWITCH;
45 mods = XCB_MOD_MASK_ANY;
48 GRAB_KEY(mods | xcb_numlock_mask);
49 GRAB_KEY(mods | xcb_numlock_mask | XCB_MOD_MASK_LOCK);
53 * Returns a pointer to the Binding with the specified modifiers and keycode
54 * or NULL if no such binding exists.
57 Binding *get_binding(uint16_t modifiers, bool key_release, xcb_keycode_t keycode) {
60 TAILQ_FOREACH(bind, bindings, bindings) {
61 /* First compare the modifiers */
62 if (bind->mods != modifiers)
65 /* Check if the binding is for a KeyPress or a KeyRelease event */
66 if (bind->release != key_release)
69 /* If a symbol was specified by the user, we need to look in
70 * the array of translated keycodes for the event’s keycode */
71 if (bind->symbol != NULL) {
72 if (memmem(bind->translated_to,
73 bind->number_keycodes * sizeof(xcb_keycode_t),
74 &keycode, sizeof(xcb_keycode_t)) != NULL)
77 /* This case is easier: The user specified a keycode */
78 if (bind->keycode == keycode)
83 return (bind == TAILQ_END(bindings) ? NULL : bind);
87 * Translates keysymbols to keycodes for all bindings which use keysyms.
90 void translate_keysyms(void) {
95 min_keycode = xcb_get_setup(conn)->min_keycode,
96 max_keycode = xcb_get_setup(conn)->max_keycode;
98 TAILQ_FOREACH(bind, bindings, bindings) {
99 if (bind->keycode > 0)
102 /* We need to translate the symbol to a keycode */
103 keysym = XStringToKeysym(bind->symbol);
104 if (keysym == NoSymbol) {
105 ELOG("Could not translate string to key symbol: \"%s\"\n",
110 /* Base column we use for looking up key symbols. We always consider
111 * the base column and the corresponding shift column, so without
112 * mode_switch, we look in 0 and 1, with mode_switch we look in 2 and
114 col = (bind->mods & BIND_MODE_SWITCH ? 2 : 0);
116 FREE(bind->translated_to);
117 bind->number_keycodes = 0;
119 for (i = min_keycode; i && i <= max_keycode; i++) {
120 if ((xcb_key_symbols_get_keysym(keysyms, i, col) != keysym) &&
121 (xcb_key_symbols_get_keysym(keysyms, i, col+1) != keysym))
123 bind->number_keycodes++;
124 bind->translated_to = srealloc(bind->translated_to,
125 (sizeof(xcb_keycode_t) *
126 bind->number_keycodes));
127 bind->translated_to[bind->number_keycodes-1] = i;
130 DLOG("Translated symbol \"%s\" to %d keycode\n", bind->symbol,
131 bind->number_keycodes);
136 * Grab the bound keys (tell X to send us keypress events for those keycodes)
139 void grab_all_keys(xcb_connection_t *conn, bool bind_mode_switch) {
141 TAILQ_FOREACH(bind, bindings, bindings) {
142 if ((bind_mode_switch && (bind->mods & BIND_MODE_SWITCH) == 0) ||
143 (!bind_mode_switch && (bind->mods & BIND_MODE_SWITCH) != 0))
146 /* The easy case: the user specified a keycode directly. */
147 if (bind->keycode > 0) {
148 grab_keycode_for_binding(conn, bind, bind->keycode);
152 xcb_keycode_t *walk = bind->translated_to;
153 for (int i = 0; i < bind->number_keycodes; i++)
154 grab_keycode_for_binding(conn, bind, *walk++);
159 * Switches the key bindings to the given mode, if the mode exists
162 void switch_mode(const char *new_mode) {
165 LOG("Switching to mode %s\n", new_mode);
167 SLIST_FOREACH(mode, &modes, modes) {
168 if (strcasecmp(mode->name, new_mode) != 0)
171 ungrab_all_keys(conn);
172 bindings = mode->bindings;
174 grab_all_keys(conn, false);
178 ELOG("ERROR: Mode not found\n");
182 * Get the path of the first configuration file found. If override_configpath
183 * is specified, that path is returned and saved for further calls. Otherwise,
184 * checks the home directory first, then the system directory first, always
185 * taking into account the XDG Base Directory Specification ($XDG_CONFIG_HOME,
189 static char *get_config_path(const char *override_configpath) {
190 char *xdg_config_home, *xdg_config_dirs, *config_path;
192 static const char *saved_configpath = NULL;
194 if (override_configpath != NULL) {
195 saved_configpath = override_configpath;
196 return sstrdup(saved_configpath);
199 if (saved_configpath != NULL)
200 return sstrdup(saved_configpath);
202 /* 1: check the traditional path under the home directory */
203 config_path = resolve_tilde("~/.i3/config");
204 if (path_exists(config_path))
208 /* 2: check for $XDG_CONFIG_HOME/i3/config */
209 if ((xdg_config_home = getenv("XDG_CONFIG_HOME")) == NULL)
210 xdg_config_home = "~/.config";
212 xdg_config_home = resolve_tilde(xdg_config_home);
213 sasprintf(&config_path, "%s/i3/config", xdg_config_home);
214 free(xdg_config_home);
216 if (path_exists(config_path))
220 /* 3: check the traditional path under /etc */
221 config_path = SYSCONFDIR "/i3/config";
222 if (path_exists(config_path))
223 return sstrdup(config_path);
225 /* 4: check for $XDG_CONFIG_DIRS/i3/config */
226 if ((xdg_config_dirs = getenv("XDG_CONFIG_DIRS")) == NULL)
227 xdg_config_dirs = "/etc/xdg";
229 char *buf = sstrdup(xdg_config_dirs);
230 char *tok = strtok(buf, ":");
231 while (tok != NULL) {
232 tok = resolve_tilde(tok);
233 sasprintf(&config_path, "%s/i3/config", tok);
235 if (path_exists(config_path)) {
240 tok = strtok(NULL, ":");
244 die("Unable to find the configuration file (looked at "
245 "~/.i3/config, $XDG_CONFIG_HOME/i3/config, "
246 SYSCONFDIR "/i3/config and $XDG_CONFIG_DIRS/i3/config)");
250 * Finds the configuration file to use (either the one specified by
251 * override_configpath), the user’s one or the system default) and calls
255 static void parse_configuration(const char *override_configpath) {
256 char *path = get_config_path(override_configpath);
257 LOG("Parsing configfile %s\n", path);
258 FREE(current_configpath);
259 current_configpath = path;
264 * (Re-)loads the configuration file (sets useful defaults before).
267 void load_configuration(xcb_connection_t *conn, const char *override_configpath, bool reload) {
269 /* First ungrab the keys */
270 ungrab_all_keys(conn);
274 while (!SLIST_EMPTY(&modes)) {
275 mode = SLIST_FIRST(&modes);
278 /* Clear the old binding list */
279 bindings = mode->bindings;
280 while (!TAILQ_EMPTY(bindings)) {
281 bind = TAILQ_FIRST(bindings);
282 TAILQ_REMOVE(bindings, bind, bindings);
283 FREE(bind->translated_to);
288 SLIST_REMOVE(&modes, mode, Mode, modes);
291 struct Assignment *assign;
292 while (!TAILQ_EMPTY(&assignments)) {
293 assign = TAILQ_FIRST(&assignments);
294 if (assign->type == A_TO_WORKSPACE)
295 FREE(assign->dest.workspace);
296 else if (assign->type == A_TO_OUTPUT)
297 FREE(assign->dest.output);
298 else if (assign->type == A_COMMAND)
299 FREE(assign->dest.command);
300 match_free(&(assign->match));
301 TAILQ_REMOVE(&assignments, assign, assignments);
305 /* Clear bar configs */
306 Barconfig *barconfig;
307 while (!TAILQ_EMPTY(&barconfigs)) {
308 barconfig = TAILQ_FIRST(&barconfigs);
310 for (int c = 0; c < barconfig->num_outputs; c++)
311 free(barconfig->outputs[c]);
312 FREE(barconfig->outputs);
313 FREE(barconfig->tray_output);
314 FREE(barconfig->socket_path);
315 FREE(barconfig->status_command);
316 FREE(barconfig->i3bar_command);
317 FREE(barconfig->font);
318 FREE(barconfig->colors.background);
319 FREE(barconfig->colors.statusline);
320 FREE(barconfig->colors.focused_workspace_border);
321 FREE(barconfig->colors.focused_workspace_bg);
322 FREE(barconfig->colors.focused_workspace_text);
323 FREE(barconfig->colors.active_workspace_border);
324 FREE(barconfig->colors.active_workspace_bg);
325 FREE(barconfig->colors.active_workspace_text);
326 FREE(barconfig->colors.inactive_workspace_border);
327 FREE(barconfig->colors.inactive_workspace_bg);
328 FREE(barconfig->colors.inactive_workspace_text);
329 FREE(barconfig->colors.urgent_workspace_border);
330 FREE(barconfig->colors.urgent_workspace_bg);
331 FREE(barconfig->colors.urgent_workspace_text);
332 TAILQ_REMOVE(&barconfigs, barconfig, configs);
336 /* Clear workspace names */
339 TAILQ_FOREACH(ws, workspaces, workspaces)
340 workspace_set_name(ws, NULL);
343 /* Invalidate pixmap caches in case font or colors changed */
345 TAILQ_FOREACH(con, &all_cons, all_cons)
346 FREE(con->deco_render_params);
348 /* Get rid of the current font */
354 struct Mode *default_mode = scalloc(sizeof(struct Mode));
355 default_mode->name = sstrdup("default");
356 default_mode->bindings = scalloc(sizeof(struct bindings_head));
357 TAILQ_INIT(default_mode->bindings);
358 SLIST_INSERT_HEAD(&modes, default_mode, modes);
360 bindings = default_mode->bindings;
362 #define REQUIRED_OPTION(name) \
363 if (config.name == NULL) \
364 die("You did not specify required configuration option " #name "\n");
366 /* Clear the old config or initialize the data structure */
367 memset(&config, 0, sizeof(config));
369 /* Initialize default colors */
370 #define INIT_COLOR(x, cborder, cbackground, ctext, cindicator) \
372 x.border = get_colorpixel(cborder); \
373 x.background = get_colorpixel(cbackground); \
374 x.text = get_colorpixel(ctext); \
375 x.indicator = get_colorpixel(cindicator); \
378 config.client.background = get_colorpixel("#000000");
379 INIT_COLOR(config.client.focused, "#4c7899", "#285577", "#ffffff", "#2e9ef4");
380 INIT_COLOR(config.client.focused_inactive, "#333333", "#5f676a", "#ffffff", "#484e50");
381 INIT_COLOR(config.client.unfocused, "#333333", "#222222", "#888888", "#292d2e");
382 INIT_COLOR(config.client.urgent, "#2f343a", "#900000", "#ffffff", "#900000");
384 /* the last argument (indicator color) is ignored for bar colors */
385 INIT_COLOR(config.bar.focused, "#4c7899", "#285577", "#ffffff", "#000000");
386 INIT_COLOR(config.bar.unfocused, "#333333", "#222222", "#888888", "#000000");
387 INIT_COLOR(config.bar.urgent, "#2f343a", "#900000", "#ffffff", "#000000");
389 config.default_border = BS_NORMAL;
390 config.default_floating_border = BS_NORMAL;
391 /* Set default_orientation to NO_ORIENTATION for auto orientation. */
392 config.default_orientation = NO_ORIENTATION;
394 parse_configuration(override_configpath);
398 grab_all_keys(conn, false);
401 if (config.font.type == FONT_TYPE_NONE) {
402 ELOG("You did not specify required configuration option \"font\"\n");
403 config.font = load_font("fixed", true);
404 set_font(&config.font);
407 /* Redraw the currently visible decorations on reload, so that
408 * the possibly new drawing parameters changed. */
410 x_deco_recurse(croot);
415 /* Set an empty name for every workspace which got no name */
417 TAILQ_FOREACH(ws, workspaces, workspaces) {
418 if (ws->name != NULL) {
419 /* If the font was not specified when the workspace name
420 * was loaded, we need to predict the text width now */
421 if (ws->text_width == 0)
422 ws->text_width = predict_text_width(global_conn,
423 config.font, ws->name, ws->name_len);
427 workspace_set_name(ws, NULL);