2 * vim:ts=4:sw=4:expandtab
4 * i3bar - an xcb-based status- and ws-bar for i3
5 * © 2010-2011 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>
27 * Essentially we just save it in cur_key.
31 static int config_map_key_cb(void *params_, const unsigned char *keyVal, size_t keyLen) {
33 static int config_map_key_cb(void *params_, const unsigned char *keyVal, unsigned keyLen) {
37 cur_key = smalloc(sizeof(unsigned char) * (keyLen + 1));
38 strncpy(cur_key, (const char*) keyVal, keyLen);
39 cur_key[keyLen] = '\0';
45 * Parse a null-value (current_workspace)
48 static int config_null_cb(void *params_) {
49 if (!strcmp(cur_key, "id")) {
50 /* If 'id' is NULL, the bar config was not found. Error out. */
51 ELOG("No such bar config. Use 'i3-msg -t get_bar_config' to get the available configs.\n");
52 ELOG("Are you starting i3bar by hand? You should not:\n");
53 ELOG("Configure a 'bar' block in your i3 config and i3 will launch i3bar automatically.\n");
65 static int config_string_cb(void *params_, const unsigned char *val, size_t _len) {
67 static int config_string_cb(void *params_, const unsigned char *val, unsigned int _len) {
70 /* The id and socket_path are ignored, we already know them. */
71 if (!strcmp(cur_key, "id") || !strcmp(cur_key, "socket_path"))
74 if (!strcmp(cur_key, "mode")) {
75 DLOG("mode = %.*s, len = %d\n", len, val, len);
76 config.hide_on_modifier = (len == 4 && !strncmp((const char*)val, "hide", strlen("hide")));
80 if (!strcmp(cur_key, "modifier")) {
81 DLOG("modifier = %.*s\n", len, val);
82 if (len == 5 && !strncmp((const char*)val, "shift", strlen("shift"))) {
83 config.modifier = ShiftMask;
86 if (len == 4 && !strncmp((const char*)val, "ctrl", strlen("ctrl"))) {
87 config.modifier = ControlMask;
90 if (len == 4 && !strncmp((const char*)val, "Mod", strlen("Mod"))) {
93 config.modifier = Mod1Mask;
96 config.modifier = Mod2Mask;
99 config.modifier = Mod3Mask;
103 config.modifier = Mod4Mask;
107 config.modifier = Mod5Mask;
111 config.modifier = Mod4Mask;
115 if (!strcmp(cur_key, "position")) {
116 DLOG("position = %.*s\n", len, val);
117 config.position = (len == 3 && !strncmp((const char*)val, "top", strlen("top")) ? POS_TOP : POS_BOT);
121 if (!strcmp(cur_key, "status_command")) {
122 /* We cannot directly start the child here, because start_child() also
123 * needs to be run when no command was specified (to setup stdin).
124 * Therefore we save the command in 'config' and access it later in
125 * got_bar_config() */
126 DLOG("command = %.*s\n", len, val);
127 sasprintf(&config.command, "%.*s", len, val);
131 if (!strcmp(cur_key, "font")) {
132 DLOG("font = %.*s\n", len, val);
133 sasprintf(&config.fontname, "%.*s", len, val);
137 if (!strcmp(cur_key, "outputs")) {
138 DLOG("+output %.*s\n", len, val);
139 int new_num_outputs = config.num_outputs + 1;
140 config.outputs = srealloc(config.outputs, sizeof(char*) * new_num_outputs);
141 sasprintf(&config.outputs[config.num_outputs], "%.*s", len, val);
142 config.num_outputs = new_num_outputs;
146 if (!strcmp(cur_key, "tray_output")) {
147 DLOG("tray_output %.*s\n", len, val);
148 FREE(config.tray_output);
149 sasprintf(&config.tray_output, "%.*s", len, val);
153 #define COLOR(json_name, struct_name) \
155 if (!strcmp(cur_key, #json_name)) { \
156 DLOG(#json_name " = " #struct_name " = %.*s\n", len, val); \
157 sasprintf(&(config.colors.struct_name), "%.*s", len, val); \
162 COLOR(statusline, bar_fg);
163 COLOR(background, bar_bg);
164 COLOR(focused_workspace_border, focus_ws_border);
165 COLOR(focused_workspace_bg, focus_ws_bg);
166 COLOR(focused_workspace_text, focus_ws_fg);
167 COLOR(active_workspace_border, active_ws_border);
168 COLOR(active_workspace_bg, active_ws_bg);
169 COLOR(active_workspace_text, active_ws_fg);
170 COLOR(inactive_workspace_border, inactive_ws_border);
171 COLOR(inactive_workspace_bg, inactive_ws_bg);
172 COLOR(inactive_workspace_text, inactive_ws_fg);
173 COLOR(urgent_workspace_border, urgent_ws_border);
174 COLOR(urgent_workspace_bg, urgent_ws_bg);
175 COLOR(urgent_workspace_text, urgent_ws_fg);
177 printf("got unexpected string %.*s for cur_key = %s\n", len, val, cur_key);
183 * Parse a boolean value
186 static int config_boolean_cb(void *params_, int val) {
187 if (!strcmp(cur_key, "workspace_buttons")) {
188 DLOG("workspace_buttons = %d\n", val);
189 config.disable_ws = !val;
193 if (!strcmp(cur_key, "verbose")) {
194 DLOG("verbose = %d\n", val);
195 config.verbose = val;
202 /* A datastructure to pass all these callbacks to yajl */
203 static yajl_callbacks outputs_callbacks = {
218 * Start parsing the received bar configuration json-string
221 void parse_config_json(char *json) {
225 yajl_parser_config parse_conf = { 0, 0 };
227 handle = yajl_alloc(&outputs_callbacks, &parse_conf, NULL, NULL);
229 handle = yajl_alloc(&outputs_callbacks, NULL, NULL);
232 state = yajl_parse(handle, (const unsigned char*) json, strlen(json));
234 /* FIXME: Proper errorhandling for JSON-parsing */
238 case yajl_status_client_canceled:
240 case yajl_status_insufficient_data:
242 case yajl_status_error:
243 ELOG("Could not parse config-reply!\n");
252 * free()s the color strings as soon as they are not needed anymore.
255 void free_colors(struct xcb_color_strings_t *colors) {
256 #define FREE_COLOR(x) \
263 FREE_COLOR(active_ws_fg);
264 FREE_COLOR(active_ws_bg);
265 FREE_COLOR(active_ws_border);
266 FREE_COLOR(inactive_ws_fg);
267 FREE_COLOR(inactive_ws_bg);
268 FREE_COLOR(inactive_ws_border);
269 FREE_COLOR(urgent_ws_fg);
270 FREE_COLOR(urgent_ws_bg);
271 FREE_COLOR(urgent_ws_border);
272 FREE_COLOR(focus_ws_fg);
273 FREE_COLOR(focus_ws_bg);
274 FREE_COLOR(focus_ws_border);