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 == 5 && !strncmp((const char *)val, "shift", strlen("shift"))) {
125 config.modifier = ShiftMask;
128 if (len == 4 && !strncmp((const char *)val, "ctrl", strlen("ctrl"))) {
129 config.modifier = ControlMask;
132 if (len == 4 && !strncmp((const char *)val, "Mod", strlen("Mod"))) {
135 config.modifier = Mod1Mask;
138 config.modifier = Mod2Mask;
141 config.modifier = Mod3Mask;
145 config.modifier = Mod4Mask;
149 config.modifier = Mod5Mask;
153 config.modifier = Mod4Mask;
157 /* This key was sent in <= 4.10.2. We keep it around to avoid breakage for
158 * users updating from that version and restarting i3bar before i3. */
159 if (!strcmp(cur_key, "wheel_up_cmd")) {
160 DLOG("wheel_up_cmd = %.*s\n", len, val);
161 binding_t *binding = scalloc(1, sizeof(binding_t));
162 binding->input_code = 4;
163 sasprintf(&(binding->command), "%.*s", len, val);
164 TAILQ_INSERT_TAIL(&(config.bindings), binding, bindings);
168 /* This key was sent in <= 4.10.2. We keep it around to avoid breakage for
169 * users updating from that version and restarting i3bar before i3. */
170 if (!strcmp(cur_key, "wheel_down_cmd")) {
171 DLOG("wheel_down_cmd = %.*s\n", len, val);
172 binding_t *binding = scalloc(1, sizeof(binding_t));
173 binding->input_code = 5;
174 sasprintf(&(binding->command), "%.*s", len, val);
175 TAILQ_INSERT_TAIL(&(config.bindings), binding, bindings);
179 if (!strcmp(cur_key, "position")) {
180 DLOG("position = %.*s\n", len, val);
181 config.position = (len == 3 && !strncmp((const char *)val, "top", strlen("top")) ? POS_TOP : POS_BOT);
185 if (!strcmp(cur_key, "status_command")) {
186 DLOG("command = %.*s\n", len, val);
187 sasprintf(&config.command, "%.*s", len, val);
191 if (!strcmp(cur_key, "font")) {
192 DLOG("font = %.*s\n", len, val);
193 sasprintf(&config.fontname, "%.*s", len, val);
197 if (!strcmp(cur_key, "separator_symbol")) {
198 DLOG("separator = %.*s\n", len, val);
199 I3STRING_FREE(config.separator_symbol);
200 config.separator_symbol = i3string_from_utf8_with_length((const char *)val, len);
204 if (!strcmp(cur_key, "outputs")) {
205 DLOG("+output %.*s\n", len, val);
206 int new_num_outputs = config.num_outputs + 1;
207 config.outputs = srealloc(config.outputs, sizeof(char *) * new_num_outputs);
208 sasprintf(&config.outputs[config.num_outputs], "%.*s", len, val);
209 config.num_outputs = new_num_outputs;
213 /* We keep the old single tray_output working for users who only restart i3bar
215 if (!strcmp(cur_key, "tray_output")) {
216 DLOG("Found deprecated key tray_output %.*s.\n", len, val);
217 tray_output_t *tray_output = scalloc(1, sizeof(tray_output_t));
218 sasprintf(&(tray_output->output), "%.*s", len, val);
219 TAILQ_INSERT_TAIL(&(config.tray_outputs), tray_output, tray_outputs);
223 #define COLOR(json_name, struct_name) \
225 if (!strcmp(cur_key, #json_name)) { \
226 DLOG(#json_name " = " #struct_name " = %.*s\n", len, val); \
227 sasprintf(&(config.colors.struct_name), "%.*s", len, val); \
232 COLOR(statusline, bar_fg);
233 COLOR(background, bar_bg);
234 COLOR(separator, sep_fg);
235 COLOR(focused_statusline, focus_bar_fg);
236 COLOR(focused_background, focus_bar_bg);
237 COLOR(focused_separator, focus_sep_fg);
238 COLOR(focused_workspace_border, focus_ws_border);
239 COLOR(focused_workspace_bg, focus_ws_bg);
240 COLOR(focused_workspace_text, focus_ws_fg);
241 COLOR(active_workspace_border, active_ws_border);
242 COLOR(active_workspace_bg, active_ws_bg);
243 COLOR(active_workspace_text, active_ws_fg);
244 COLOR(inactive_workspace_border, inactive_ws_border);
245 COLOR(inactive_workspace_bg, inactive_ws_bg);
246 COLOR(inactive_workspace_text, inactive_ws_fg);
247 COLOR(urgent_workspace_border, urgent_ws_border);
248 COLOR(urgent_workspace_bg, urgent_ws_bg);
249 COLOR(urgent_workspace_text, urgent_ws_fg);
250 COLOR(binding_mode_border, binding_mode_border);
251 COLOR(binding_mode_bg, binding_mode_bg);
252 COLOR(binding_mode_text, binding_mode_fg);
254 printf("got unexpected string %.*s for cur_key = %s\n", len, val, cur_key);
260 * Parse a boolean value
263 static int config_boolean_cb(void *params_, int val) {
264 if (!strcmp(cur_key, "binding_mode_indicator")) {
265 DLOG("binding_mode_indicator = %d\n", val);
266 config.disable_binding_mode_indicator = !val;
270 if (!strcmp(cur_key, "workspace_buttons")) {
271 DLOG("workspace_buttons = %d\n", val);
272 config.disable_ws = !val;
276 if (!strcmp(cur_key, "strip_workspace_numbers")) {
277 DLOG("strip_workspace_numbers = %d\n", val);
278 config.strip_ws_numbers = val;
282 if (!strcmp(cur_key, "verbose")) {
283 DLOG("verbose = %d\n", val);
284 config.verbose = val;
292 * Parse an integer value
295 static int config_integer_cb(void *params_, long long val) {
296 if (parsing_bindings) {
297 if (strcmp(cur_key, "input_code") == 0) {
298 binding_t *binding = scalloc(1, sizeof(binding_t));
299 binding->input_code = val;
300 TAILQ_INSERT_TAIL(&(config.bindings), binding, bindings);
305 ELOG("Unknown key \"%s\" while parsing bar bindings.\n", cur_key);
309 if (!strcmp(cur_key, "tray_padding")) {
310 DLOG("tray_padding = %lld\n", val);
311 config.tray_padding = val;
318 /* A datastructure to pass all these callbacks to yajl */
319 static yajl_callbacks outputs_callbacks = {
320 .yajl_null = config_null_cb,
321 .yajl_boolean = config_boolean_cb,
322 .yajl_integer = config_integer_cb,
323 .yajl_string = config_string_cb,
324 .yajl_end_array = config_end_array_cb,
325 .yajl_map_key = config_map_key_cb,
329 * Start parsing the received bar configuration JSON string
332 void parse_config_json(char *json) {
335 handle = yajl_alloc(&outputs_callbacks, NULL, NULL);
337 TAILQ_INIT(&(config.bindings));
338 TAILQ_INIT(&(config.tray_outputs));
340 state = yajl_parse(handle, (const unsigned char *)json, strlen(json));
342 /* FIXME: Proper error handling for JSON parsing */
346 case yajl_status_client_canceled:
347 case yajl_status_error:
348 ELOG("Could not parse config reply!\n");
357 * free()s the color strings as soon as they are not needed anymore.
360 void free_colors(struct xcb_color_strings_t *colors) {
361 #define FREE_COLOR(x) \
368 FREE_COLOR(focus_bar_fg);
369 FREE_COLOR(focus_bar_bg);
370 FREE_COLOR(focus_sep_fg);
371 FREE_COLOR(active_ws_fg);
372 FREE_COLOR(active_ws_bg);
373 FREE_COLOR(active_ws_border);
374 FREE_COLOR(inactive_ws_fg);
375 FREE_COLOR(inactive_ws_bg);
376 FREE_COLOR(inactive_ws_border);
377 FREE_COLOR(urgent_ws_fg);
378 FREE_COLOR(urgent_ws_bg);
379 FREE_COLOR(urgent_ws_border);
380 FREE_COLOR(focus_ws_fg);
381 FREE_COLOR(focus_ws_bg);
382 FREE_COLOR(focus_ws_border);
383 FREE_COLOR(binding_mode_fg);
384 FREE_COLOR(binding_mode_bg);
385 FREE_COLOR(binding_mode_border);