5 #include <yajl/yajl_parse.h>
9 /* A datatype to pass through the callbacks to save the state */
10 struct outputs_json_params {
11 struct outputs_head *outputs;
12 i3_output *outputs_walk;
19 * Parse a null-value (current_workspace)
22 static int outputs_null_cb(void *params_) {
23 struct outputs_json_params *params = (struct outputs_json_params*) params_;
25 FREE(params->cur_key);
31 * Parse a booleant-value (active)
34 static int outputs_boolean_cb(void *params_, bool val) {
35 struct outputs_json_params *params = (struct outputs_json_params*) params_;
37 if (strcmp(params->cur_key, "active")) {
41 params->outputs_walk->active = val;
43 FREE(params->cur_key);
49 * Parse an integer (current_workspace or the rect)
52 static int outputs_integer_cb(void *params_, long val) {
53 struct outputs_json_params *params = (struct outputs_json_params*) params_;
55 if (!strcmp(params->cur_key, "current_workspace")) {
56 params->outputs_walk->ws = (int) val;
57 FREE(params->cur_key);
61 if (!strcmp(params->cur_key, "x")) {
62 params->outputs_walk->rect.x = (int) val;
63 FREE(params->cur_key);
67 if (!strcmp(params->cur_key, "y")) {
68 params->outputs_walk->rect.y = (int) val;
69 FREE(params->cur_key);
73 if (!strcmp(params->cur_key, "width")) {
74 params->outputs_walk->rect.w = (int) val;
75 FREE(params->cur_key);
79 if (!strcmp(params->cur_key, "height")) {
80 params->outputs_walk->rect.h = (int) val;
81 FREE(params->cur_key);
89 * Parse a string (name)
92 static int outputs_string_cb(void *params_, const unsigned char *val, unsigned int len) {
93 struct outputs_json_params *params = (struct outputs_json_params*) params_;
95 if (strcmp(params->cur_key, "name")) {
99 char *name = malloc(sizeof(const unsigned char) * (len + 1));
100 strncpy(name, (const char*) val, len);
103 params->outputs_walk->name = name;
105 FREE(params->cur_key);
111 * We hit the start of a json-map (rect or a new output)
114 static int outputs_start_map_cb(void *params_) {
115 struct outputs_json_params *params = (struct outputs_json_params*) params_;
116 i3_output *new_output = NULL;
118 if (params->cur_key == NULL) {
119 new_output = malloc(sizeof(i3_output));
120 new_output->name = NULL;
122 memset(&new_output->rect, 0, sizeof(rect));
123 new_output->bar = XCB_NONE;
125 new_output->workspaces = malloc(sizeof(struct ws_head));
126 TAILQ_INIT(new_output->workspaces);
128 params->outputs_walk = new_output;
137 * We hit the end of a map (rect or a new output)
140 static int outputs_end_map_cb(void *params_) {
141 struct outputs_json_params *params = (struct outputs_json_params*) params_;
142 /* FIXME: What is at the end of a rect? */
144 i3_output *target = get_output_by_name(params->outputs_walk->name);
146 if (target == NULL) {
147 SLIST_INSERT_HEAD(outputs, params->outputs_walk, slist);
149 target->active = params->outputs_walk->active;
150 target->ws = params->outputs_walk->ws;
151 target->rect = params->outputs_walk->rect;
159 * Essentially we just save it in the parsing-state
162 static int outputs_map_key_cb(void *params_, const unsigned char *keyVal, unsigned int keyLen) {
163 struct outputs_json_params *params = (struct outputs_json_params*) params_;
164 FREE(params->cur_key);
166 params->cur_key = malloc(sizeof(unsigned char) * (keyLen + 1));
167 strncpy(params->cur_key, (const char*) keyVal, keyLen);
168 params->cur_key[keyLen] = '\0';
173 /* A datastructure to pass all these callbacks to yajl */
174 yajl_callbacks outputs_callbacks = {
181 &outputs_start_map_cb,
189 * Initiate the output-list
192 void init_outputs() {
193 outputs = malloc(sizeof(struct outputs_head));
198 * Start parsing the received json-string
201 void parse_outputs_json(char *json) {
202 struct outputs_json_params params;
204 params.outputs_walk = NULL;
205 params.cur_key = NULL;
209 yajl_parser_config parse_conf = { 0, 0 };
212 handle = yajl_alloc(&outputs_callbacks, &parse_conf, NULL, (void*) ¶ms);
214 state = yajl_parse(handle, (const unsigned char*) json, strlen(json));
216 /* FIXME: Propper errorhandling for JSON-parsing */
220 case yajl_status_client_canceled:
221 case yajl_status_insufficient_data:
222 case yajl_status_error:
223 printf("ERROR: Could not parse outputs-reply!\n");
232 * Returns the output with the given name
235 i3_output *get_output_by_name(char *name) {
240 SLIST_FOREACH(walk, outputs, slist) {
241 if (!strcmp(walk->name, name)) {