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;
28 * Essentially we just save it in cur_key.
31 static int config_map_key_cb(void *params_, const unsigned char *keyVal, size_t keyLen) {
34 cur_key = smalloc(sizeof(unsigned char) * (keyLen + 1));
35 strncpy(cur_key, (const char *)keyVal, keyLen);
36 cur_key[keyLen] = '\0';
38 if (strcmp(cur_key, "bindings") == 0)
39 parsing_bindings = true;
44 static int config_end_array_cb(void *params_) {
45 parsing_bindings = false;
50 * Parse a null value (current_workspace)
53 static int config_null_cb(void *params_) {
54 if (!strcmp(cur_key, "id")) {
55 /* If 'id' is NULL, the bar config was not found. Error out. */
56 ELOG("No such bar config. Use 'i3-msg -t get_bar_config' to get the available configs.\n");
57 ELOG("Are you starting i3bar by hand? You should not:\n");
58 ELOG("Configure a 'bar' block in your i3 config and i3 will launch i3bar automatically.\n");
69 static int config_string_cb(void *params_, const unsigned char *val, size_t _len) {
71 /* The id and socket_path are ignored, we already know them. */
72 if (!strcmp(cur_key, "id") || !strcmp(cur_key, "socket_path"))
75 if (parsing_bindings) {
76 if (strcmp(cur_key, "command") == 0) {
77 binding_t *binding = TAILQ_LAST(&(config.bindings), bindings_head);
78 if (binding == NULL) {
79 ELOG("There is no binding to put the current command onto. This is a bug in i3.\n");
83 if (binding->command != NULL) {
84 ELOG("The binding for input_code = %d already has a command. This is a bug in i3.\n", binding->input_code);
88 sasprintf(&(binding->command), "%.*s", len, val);
92 ELOG("Unknown key \"%s\" while parsing bar bindings.\n", cur_key);
96 if (!strcmp(cur_key, "mode")) {
97 DLOG("mode = %.*s, len = %d\n", len, val, len);
98 config.hide_on_modifier = (len == 4 && !strncmp((const char *)val, "dock", strlen("dock")) ? M_DOCK
99 : (len == 4 && !strncmp((const char *)val, "hide", strlen("hide")) ? M_HIDE
104 if (!strcmp(cur_key, "hidden_state")) {
105 DLOG("hidden_state = %.*s, len = %d\n", len, val, len);
106 config.hidden_state = (len == 4 && !strncmp((const char *)val, "hide", strlen("hide")) ? S_HIDE : S_SHOW);
110 if (!strcmp(cur_key, "modifier")) {
111 DLOG("modifier = %.*s\n", len, val);
112 if (len == 5 && !strncmp((const char *)val, "shift", strlen("shift"))) {
113 config.modifier = ShiftMask;
116 if (len == 4 && !strncmp((const char *)val, "ctrl", strlen("ctrl"))) {
117 config.modifier = ControlMask;
120 if (len == 4 && !strncmp((const char *)val, "Mod", strlen("Mod"))) {
123 config.modifier = Mod1Mask;
126 config.modifier = Mod2Mask;
129 config.modifier = Mod3Mask;
133 config.modifier = Mod4Mask;
137 config.modifier = Mod5Mask;
141 config.modifier = Mod4Mask;
145 /* This key was sent in <= 4.10.2. We keep it around to avoid breakage for
146 * users updating from that version and restarting i3bar before i3. */
147 if (!strcmp(cur_key, "wheel_up_cmd")) {
148 DLOG("wheel_up_cmd = %.*s\n", len, val);
149 binding_t *binding = scalloc(1, sizeof(binding_t));
150 binding->input_code = 4;
151 sasprintf(&(binding->command), "%.*s", len, val);
152 TAILQ_INSERT_TAIL(&(config.bindings), binding, bindings);
156 /* This key was sent in <= 4.10.2. We keep it around to avoid breakage for
157 * users updating from that version and restarting i3bar before i3. */
158 if (!strcmp(cur_key, "wheel_down_cmd")) {
159 DLOG("wheel_down_cmd = %.*s\n", len, val);
160 binding_t *binding = scalloc(1, sizeof(binding_t));
161 binding->input_code = 5;
162 sasprintf(&(binding->command), "%.*s", len, val);
163 TAILQ_INSERT_TAIL(&(config.bindings), binding, bindings);
167 if (!strcmp(cur_key, "position")) {
168 DLOG("position = %.*s\n", len, val);
169 config.position = (len == 3 && !strncmp((const char *)val, "top", strlen("top")) ? POS_TOP : POS_BOT);
173 if (!strcmp(cur_key, "status_command")) {
174 DLOG("command = %.*s\n", len, val);
175 sasprintf(&config.command, "%.*s", len, val);
179 if (!strcmp(cur_key, "font")) {
180 DLOG("font = %.*s\n", len, val);
181 sasprintf(&config.fontname, "%.*s", len, val);
185 if (!strcmp(cur_key, "separator_symbol")) {
186 DLOG("separator = %.*s\n", len, val);
187 I3STRING_FREE(config.separator_symbol);
188 config.separator_symbol = i3string_from_utf8_with_length((const char *)val, len);
192 if (!strcmp(cur_key, "outputs")) {
193 DLOG("+output %.*s\n", len, val);
194 int new_num_outputs = config.num_outputs + 1;
195 config.outputs = srealloc(config.outputs, sizeof(char *) * new_num_outputs);
196 sasprintf(&config.outputs[config.num_outputs], "%.*s", len, val);
197 config.num_outputs = new_num_outputs;
201 if (!strcmp(cur_key, "tray_output")) {
202 DLOG("tray_output %.*s\n", len, val);
203 FREE(config.tray_output);
204 sasprintf(&config.tray_output, "%.*s", len, val);
208 #define COLOR(json_name, struct_name) \
210 if (!strcmp(cur_key, #json_name)) { \
211 DLOG(#json_name " = " #struct_name " = %.*s\n", len, val); \
212 sasprintf(&(config.colors.struct_name), "%.*s", len, val); \
217 COLOR(statusline, bar_fg);
218 COLOR(background, bar_bg);
219 COLOR(separator, sep_fg);
220 COLOR(focused_workspace_border, focus_ws_border);
221 COLOR(focused_workspace_bg, focus_ws_bg);
222 COLOR(focused_workspace_text, focus_ws_fg);
223 COLOR(active_workspace_border, active_ws_border);
224 COLOR(active_workspace_bg, active_ws_bg);
225 COLOR(active_workspace_text, active_ws_fg);
226 COLOR(inactive_workspace_border, inactive_ws_border);
227 COLOR(inactive_workspace_bg, inactive_ws_bg);
228 COLOR(inactive_workspace_text, inactive_ws_fg);
229 COLOR(urgent_workspace_border, urgent_ws_border);
230 COLOR(urgent_workspace_bg, urgent_ws_bg);
231 COLOR(urgent_workspace_text, urgent_ws_fg);
232 COLOR(binding_mode_border, binding_mode_border);
233 COLOR(binding_mode_bg, binding_mode_bg);
234 COLOR(binding_mode_text, binding_mode_fg);
236 printf("got unexpected string %.*s for cur_key = %s\n", len, val, cur_key);
242 * Parse a boolean value
245 static int config_boolean_cb(void *params_, int val) {
246 if (!strcmp(cur_key, "binding_mode_indicator")) {
247 DLOG("binding_mode_indicator = %d\n", val);
248 config.disable_binding_mode_indicator = !val;
252 if (!strcmp(cur_key, "workspace_buttons")) {
253 DLOG("workspace_buttons = %d\n", val);
254 config.disable_ws = !val;
258 if (!strcmp(cur_key, "strip_workspace_numbers")) {
259 DLOG("strip_workspace_numbers = %d\n", val);
260 config.strip_ws_numbers = val;
264 if (!strcmp(cur_key, "verbose")) {
265 DLOG("verbose = %d\n", val);
266 config.verbose = val;
274 * Parse an integer value
277 static int config_integer_cb(void *params_, long long val) {
278 if (parsing_bindings) {
279 if (strcmp(cur_key, "input_code") == 0) {
280 binding_t *binding = scalloc(1, sizeof(binding_t));
281 binding->input_code = val;
282 TAILQ_INSERT_TAIL(&(config.bindings), binding, bindings);
287 ELOG("Unknown key \"%s\" while parsing bar bindings.\n", cur_key);
291 if (!strcmp(cur_key, "tray_padding")) {
292 DLOG("tray_padding = %lld\n", val);
293 config.tray_padding = val;
300 /* A datastructure to pass all these callbacks to yajl */
301 static yajl_callbacks outputs_callbacks = {
302 .yajl_null = config_null_cb,
303 .yajl_boolean = config_boolean_cb,
304 .yajl_integer = config_integer_cb,
305 .yajl_string = config_string_cb,
306 .yajl_end_array = config_end_array_cb,
307 .yajl_map_key = config_map_key_cb,
311 * Start parsing the received bar configuration JSON string
314 void parse_config_json(char *json) {
317 handle = yajl_alloc(&outputs_callbacks, NULL, NULL);
319 TAILQ_INIT(&(config.bindings));
321 state = yajl_parse(handle, (const unsigned char *)json, strlen(json));
323 /* FIXME: Proper error handling for JSON parsing */
327 case yajl_status_client_canceled:
328 case yajl_status_error:
329 ELOG("Could not parse config reply!\n");
338 * free()s the color strings as soon as they are not needed anymore.
341 void free_colors(struct xcb_color_strings_t *colors) {
342 #define FREE_COLOR(x) \
349 FREE_COLOR(active_ws_fg);
350 FREE_COLOR(active_ws_bg);
351 FREE_COLOR(active_ws_border);
352 FREE_COLOR(inactive_ws_fg);
353 FREE_COLOR(inactive_ws_bg);
354 FREE_COLOR(inactive_ws_border);
355 FREE_COLOR(urgent_ws_fg);
356 FREE_COLOR(urgent_ws_bg);
357 FREE_COLOR(urgent_ws_border);
358 FREE_COLOR(focus_ws_fg);
359 FREE_COLOR(focus_ws_bg);
360 FREE_COLOR(focus_ws_border);
361 FREE_COLOR(binding_mode_fg);
362 FREE_COLOR(binding_mode_bg);
363 FREE_COLOR(binding_mode_border);