2 * vim:ts=4:sw=4:expandtab
4 * i3bar - an xcb-based status- and ws-bar for i3
5 * © 2010 Axel Wagner and contributors (see also: LICENSE)
7 * config.c: Parses the configuration (received from i3).
15 #include <yajl/yajl_parse.h>
16 #include <yajl/yajl_version.h>
23 static bool parsing_bindings;
24 static bool parsing_tray_outputs;
29 * Essentially we just save it in cur_key.
32 static int config_map_key_cb(void *params_, const unsigned char *keyVal, size_t keyLen) {
34 sasprintf(&(cur_key), "%.*s", keyLen, keyVal);
36 if (strcmp(cur_key, "bindings") == 0) {
37 parsing_bindings = true;
40 if (strcmp(cur_key, "tray_outputs") == 0) {
41 parsing_tray_outputs = true;
47 static int config_end_array_cb(void *params_) {
48 parsing_bindings = false;
49 parsing_tray_outputs = false;
54 * Parse a null value (current_workspace)
57 static int config_null_cb(void *params_) {
58 if (!strcmp(cur_key, "id")) {
59 /* If 'id' is NULL, the bar config was not found. Error out. */
60 ELOG("No such bar config. Use 'i3-msg -t get_bar_config' to get the available configs.\n");
61 ELOG("Are you starting i3bar by hand? You should not:\n");
62 ELOG("Configure a 'bar' block in your i3 config and i3 will launch i3bar automatically.\n");
73 static int config_string_cb(void *params_, const unsigned char *val, size_t _len) {
75 /* The id and socket_path are ignored, we already know them. */
76 if (!strcmp(cur_key, "id") || !strcmp(cur_key, "socket_path"))
79 if (parsing_bindings) {
80 if (strcmp(cur_key, "command") == 0) {
81 binding_t *binding = TAILQ_LAST(&(config.bindings), bindings_head);
82 if (binding == NULL) {
83 ELOG("There is no binding to put the current command onto. This is a bug in i3.\n");
87 if (binding->command != NULL) {
88 ELOG("The binding for input_code = %d already has a command. This is a bug in i3.\n", binding->input_code);
92 sasprintf(&(binding->command), "%.*s", len, val);
96 ELOG("Unknown key \"%s\" while parsing bar bindings.\n", cur_key);
100 if (parsing_tray_outputs) {
101 DLOG("Adding tray_output = %.*s to the list.\n", len, val);
102 tray_output_t *tray_output = scalloc(1, sizeof(tray_output_t));
103 sasprintf(&(tray_output->output), "%.*s", len, val);
104 TAILQ_INSERT_TAIL(&(config.tray_outputs), tray_output, tray_outputs);
108 if (!strcmp(cur_key, "mode")) {
109 DLOG("mode = %.*s, len = %d\n", len, val, len);
110 config.hide_on_modifier = (len == 4 && !strncmp((const char *)val, "dock", strlen("dock")) ? M_DOCK
111 : (len == 4 && !strncmp((const char *)val, "hide", strlen("hide")) ? M_HIDE
116 if (!strcmp(cur_key, "hidden_state")) {
117 DLOG("hidden_state = %.*s, len = %d\n", len, val, len);
118 config.hidden_state = (len == 4 && !strncmp((const char *)val, "hide", strlen("hide")) ? S_HIDE : S_SHOW);
122 if (!strcmp(cur_key, "modifier")) {
123 DLOG("modifier = %.*s\n", len, val);
124 if (len == 4 && !strncmp((const char *)val, "none", strlen("none"))) {
125 config.modifier = XCB_NONE;
129 if (len == 5 && !strncmp((const char *)val, "shift", strlen("shift"))) {
130 config.modifier = ShiftMask;
133 if (len == 4 && !strncmp((const char *)val, "ctrl", strlen("ctrl"))) {
134 config.modifier = ControlMask;
137 if (len == 4 && !strncmp((const char *)val, "Mod", strlen("Mod"))) {
140 config.modifier = Mod1Mask;
143 config.modifier = Mod2Mask;
146 config.modifier = Mod3Mask;
149 config.modifier = Mod5Mask;
154 config.modifier = Mod4Mask;
158 /* This key was sent in <= 4.10.2. We keep it around to avoid breakage for
159 * users updating from that version and restarting i3bar before i3. */
160 if (!strcmp(cur_key, "wheel_up_cmd")) {
161 DLOG("wheel_up_cmd = %.*s\n", len, val);
162 binding_t *binding = scalloc(1, sizeof(binding_t));
163 binding->input_code = 4;
164 sasprintf(&(binding->command), "%.*s", len, val);
165 TAILQ_INSERT_TAIL(&(config.bindings), binding, bindings);
169 /* This key was sent in <= 4.10.2. We keep it around to avoid breakage for
170 * users updating from that version and restarting i3bar before i3. */
171 if (!strcmp(cur_key, "wheel_down_cmd")) {
172 DLOG("wheel_down_cmd = %.*s\n", len, val);
173 binding_t *binding = scalloc(1, sizeof(binding_t));
174 binding->input_code = 5;
175 sasprintf(&(binding->command), "%.*s", len, val);
176 TAILQ_INSERT_TAIL(&(config.bindings), binding, bindings);
180 if (!strcmp(cur_key, "position")) {
181 DLOG("position = %.*s\n", len, val);
182 config.position = (len == 3 && !strncmp((const char *)val, "top", strlen("top")) ? POS_TOP : POS_BOT);
186 if (!strcmp(cur_key, "status_command")) {
187 DLOG("command = %.*s\n", len, val);
188 sasprintf(&config.command, "%.*s", len, val);
192 if (!strcmp(cur_key, "font")) {
193 DLOG("font = %.*s\n", len, val);
194 sasprintf(&config.fontname, "%.*s", len, val);
198 if (!strcmp(cur_key, "separator_symbol")) {
199 DLOG("separator = %.*s\n", len, val);
200 I3STRING_FREE(config.separator_symbol);
201 config.separator_symbol = i3string_from_utf8_with_length((const char *)val, len);
205 if (!strcmp(cur_key, "outputs")) {
206 DLOG("+output %.*s\n", len, val);
207 int new_num_outputs = config.num_outputs + 1;
208 config.outputs = srealloc(config.outputs, sizeof(char *) * new_num_outputs);
209 sasprintf(&config.outputs[config.num_outputs], "%.*s", len, val);
210 config.num_outputs = new_num_outputs;
214 /* We keep the old single tray_output working for users who only restart i3bar
216 if (!strcmp(cur_key, "tray_output")) {
217 DLOG("Found deprecated key tray_output %.*s.\n", len, val);
218 tray_output_t *tray_output = scalloc(1, sizeof(tray_output_t));
219 sasprintf(&(tray_output->output), "%.*s", len, val);
220 TAILQ_INSERT_TAIL(&(config.tray_outputs), tray_output, tray_outputs);
224 #define COLOR(json_name, struct_name) \
226 if (!strcmp(cur_key, #json_name)) { \
227 DLOG(#json_name " = " #struct_name " = %.*s\n", len, val); \
228 sasprintf(&(config.colors.struct_name), "%.*s", len, val); \
233 COLOR(statusline, bar_fg);
234 COLOR(background, bar_bg);
235 COLOR(separator, sep_fg);
236 COLOR(focused_statusline, focus_bar_fg);
237 COLOR(focused_background, focus_bar_bg);
238 COLOR(focused_separator, focus_sep_fg);
239 COLOR(focused_workspace_border, focus_ws_border);
240 COLOR(focused_workspace_bg, focus_ws_bg);
241 COLOR(focused_workspace_text, focus_ws_fg);
242 COLOR(active_workspace_border, active_ws_border);
243 COLOR(active_workspace_bg, active_ws_bg);
244 COLOR(active_workspace_text, active_ws_fg);
245 COLOR(inactive_workspace_border, inactive_ws_border);
246 COLOR(inactive_workspace_bg, inactive_ws_bg);
247 COLOR(inactive_workspace_text, inactive_ws_fg);
248 COLOR(urgent_workspace_border, urgent_ws_border);
249 COLOR(urgent_workspace_bg, urgent_ws_bg);
250 COLOR(urgent_workspace_text, urgent_ws_fg);
251 COLOR(binding_mode_border, binding_mode_border);
252 COLOR(binding_mode_bg, binding_mode_bg);
253 COLOR(binding_mode_text, binding_mode_fg);
255 printf("got unexpected string %.*s for cur_key = %s\n", len, val, cur_key);
261 * Parse a boolean value
264 static int config_boolean_cb(void *params_, int val) {
265 if (!strcmp(cur_key, "binding_mode_indicator")) {
266 DLOG("binding_mode_indicator = %d\n", val);
267 config.disable_binding_mode_indicator = !val;
271 if (!strcmp(cur_key, "workspace_buttons")) {
272 DLOG("workspace_buttons = %d\n", val);
273 config.disable_ws = !val;
277 if (!strcmp(cur_key, "strip_workspace_numbers")) {
278 DLOG("strip_workspace_numbers = %d\n", val);
279 config.strip_ws_numbers = val;
283 if (!strcmp(cur_key, "verbose")) {
284 DLOG("verbose = %d\n", val);
285 config.verbose = val;
293 * Parse an integer value
296 static int config_integer_cb(void *params_, long long val) {
297 if (parsing_bindings) {
298 if (strcmp(cur_key, "input_code") == 0) {
299 binding_t *binding = scalloc(1, sizeof(binding_t));
300 binding->input_code = val;
301 TAILQ_INSERT_TAIL(&(config.bindings), binding, bindings);
306 ELOG("Unknown key \"%s\" while parsing bar bindings.\n", cur_key);
310 if (!strcmp(cur_key, "tray_padding")) {
311 DLOG("tray_padding = %lld\n", val);
312 config.tray_padding = val;
319 /* A datastructure to pass all these callbacks to yajl */
320 static yajl_callbacks outputs_callbacks = {
321 .yajl_null = config_null_cb,
322 .yajl_boolean = config_boolean_cb,
323 .yajl_integer = config_integer_cb,
324 .yajl_string = config_string_cb,
325 .yajl_end_array = config_end_array_cb,
326 .yajl_map_key = config_map_key_cb,
330 * Start parsing the received bar configuration JSON string
333 void parse_config_json(char *json) {
336 handle = yajl_alloc(&outputs_callbacks, NULL, NULL);
338 TAILQ_INIT(&(config.bindings));
339 TAILQ_INIT(&(config.tray_outputs));
341 state = yajl_parse(handle, (const unsigned char *)json, strlen(json));
343 /* FIXME: Proper error handling for JSON parsing */
347 case yajl_status_client_canceled:
348 case yajl_status_error:
349 ELOG("Could not parse config reply!\n");
358 * free()s the color strings as soon as they are not needed anymore.
361 void free_colors(struct xcb_color_strings_t *colors) {
362 #define FREE_COLOR(x) \
369 FREE_COLOR(focus_bar_fg);
370 FREE_COLOR(focus_bar_bg);
371 FREE_COLOR(focus_sep_fg);
372 FREE_COLOR(active_ws_fg);
373 FREE_COLOR(active_ws_bg);
374 FREE_COLOR(active_ws_border);
375 FREE_COLOR(inactive_ws_fg);
376 FREE_COLOR(inactive_ws_bg);
377 FREE_COLOR(inactive_ws_border);
378 FREE_COLOR(urgent_ws_fg);
379 FREE_COLOR(urgent_ws_bg);
380 FREE_COLOR(urgent_ws_border);
381 FREE_COLOR(focus_ws_fg);
382 FREE_COLOR(focus_ws_bg);
383 FREE_COLOR(focus_ws_border);
384 FREE_COLOR(binding_mode_fg);
385 FREE_COLOR(binding_mode_bg);
386 FREE_COLOR(binding_mode_border);