relay: add signals "relay_client_xxx" for client status changes (closes #2)

New signals:
- relay_client_connecting
- relay_client_waiting_auth
- relay_client_connected
- relay_client_auth_failed
- relay_client_disconnected

src/plugins/relay/relay-client.c

@@ -46,10 +46,14 @@
 #include "relay-websocket.h"
 
 
-char *relay_client_status_string[] =   /* strings for status                */
+char *relay_client_status_string[] =   /* status strings for display        */
 { N_("connecting"), N_("waiting auth"),
   N_("connected"), N_("auth failed"), N_("disconnected")
 };
+char *relay_client_status_name[] =     /* name of status (for signal/info)  */
+{ "connecting", "waiting_auth",
+  "connected", "auth_failed", "disconnected"
+};
 
 char *relay_client_data_type_string[] = /* strings for data types           */
 { "text", "binary" };
@@ -133,6 +137,21 @@ relay_client_search_by_id (int id)
     return NULL;
 }
 
+/*
+ * Sends a signal with the status of client ("relay_client_xxx").
+ */
+
+void
+relay_client_send_signal (struct t_relay_client *client)
+{
+    char signal[128];
+
+    snprintf (signal, sizeof (signal),
+              "relay_client_%s",
+              relay_client_status_name[client->status]);
+    weechat_hook_signal_send (signal, WEECHAT_HOOK_SIGNAL_POINTER, client);
+}
+
 /*
  * Sets description for a client.
  */
@@ -1139,6 +1158,8 @@ relay_client_new (int sock, const char *address, struct t_relay_server *server)
             relay_buffer_open ();
         }
 
+        relay_client_send_signal (new_client);
+
         relay_buffer_refresh (WEECHAT_HOTLIST_PRIVATE);
     }
     else
@@ -1317,6 +1338,8 @@ relay_client_set_status (struct t_relay_client *client,
                 gnutls_deinit (client->gnutls_sess);
 #endif
         }
+
+        relay_client_send_signal (client);
     }
 
     relay_buffer_refresh (WEECHAT_HOTLIST_MESSAGE);