From 457cc92e1e07ea0ad83d2b99f5b2b87005f07dbf Mon Sep 17 00:00:00 2001
From: Ian Gulliver <flamingcow@gmail.com>
Date: Fri, 19 Jun 2015 22:27:28 +0000
Subject: [PATCH] Add login callback.

---
 clients/c/cosmopolite.c | 12 ++++++++++++
 clients/c/cosmopolite.h |  1 +
 2 files changed, 13 insertions(+)

diff --git a/clients/c/cosmopolite.c b/clients/c/cosmopolite.c
index bef5bcf..d6a3015 100644
--- a/clients/c/cosmopolite.c
+++ b/clients/c/cosmopolite.c
@@ -193,6 +193,16 @@ static void cosmo_handle_disconnect(cosmo *instance) {
   }
 }
 
+static void cosmo_handle_login(cosmo *instance, json_t *event) {
+  if (instance->login_state == LOGGED_IN) {
+    return;
+  }
+  instance->login_state = LOGGED_IN;
+  if (instance->callbacks.login) {
+    instance->callbacks.login(instance->passthrough);
+  }
+}
+
 static void cosmo_handle_logout(cosmo *instance, json_t *event) {
   if (instance->login_state == LOGGED_OUT) {
     return;
@@ -212,6 +222,8 @@ static void cosmo_handle_event(cosmo *instance, json_t *event) {
   const char *event_type = json_string_value(json_object_get(event, "event_type"));
   if (!strcmp(event_type, "message")) {
     cosmo_handle_message(instance, event);
+  } else if (!strcmp(event_type, "login")) {
+    cosmo_handle_login(instance, event);
   } else if (!strcmp(event_type, "logout")) {
     cosmo_handle_logout(instance, event);
   } else {
diff --git a/clients/c/cosmopolite.h b/clients/c/cosmopolite.h
index 1551d5a..96d6ec0 100644
--- a/clients/c/cosmopolite.h
+++ b/clients/c/cosmopolite.h
@@ -13,6 +13,7 @@
 typedef struct {
   void (*connect)(void *);
   void (*disconnect)(void *);
+  void (*login)(void *);
   void (*logout)(void *);
   void (*message)(const json_t *, void *);
 } cosmo_callbacks;