Feature: send complete config on barconfig_update

Send all the options in the bar block on the barconfig_update event.

This will eventually allow for dynamically updating bar colors with the
`reload` command.

src/config.c

@@ -32,44 +32,12 @@ void ungrab_all_keys(xcb_connection_t *conn) {
 
 /*
  * Sends the current bar configuration as an event to all barconfig_update listeners.
- * This update mechnism currently only includes the hidden_state and the mode in the config.
  *
  */
 void update_barconfig() {
     Barconfig *current;
     TAILQ_FOREACH(current, &barconfigs, configs) {
-        /* Build json message */
-        char *hidden_state;
-        switch (current->hidden_state) {
-            case S_SHOW:
-                hidden_state ="show";
-                break;
-            case S_HIDE:
-            default:
-                hidden_state = "hide";
-                break;
-        }
-
-        char *mode;
-        switch (current->mode) {
-            case M_HIDE:
-                mode ="hide";
-                break;
-            case M_INVISIBLE:
-                mode ="invisible";
-                break;
-            case M_DOCK:
-            default:
-                mode = "dock";
-                break;
-        }
-
-        /* Send an event to all barconfig listeners*/
-        char *event_msg;
-        sasprintf(&event_msg, "{ \"id\":\"%s\", \"hidden_state\":\"%s\", \"mode\":\"%s\" }", current->id, hidden_state, mode);
-
-        ipc_send_event("barconfig_update", I3_IPC_EVENT_BARCONFIG_UPDATE, event_msg);
-        FREE(event_msg);
+        ipc_send_barconfig_update_event(current);
     }
 }