[empathy] add empathy_chat_window_get_nb_rooms

[Guillaume Desmottes <gdesmott src gnome org>]

commit bc50bd062a3a9bb85e6c3e0228571c670532fdf9
Author: Guillaume Desmottes <guillaume desmottes collabora co uk>
Date:   Mon Dec 7 15:14:46 2009 +0000

    add empathy_chat_window_get_nb_rooms

 src/empathy-chat-window.c |   14 ++++++++++++++
 src/empathy-chat-window.h |    1 +
 2 files changed, 15 insertions(+), 0 deletions(-)
---
diff --git a/src/empathy-chat-window.c b/src/empathy-chat-window.c
index 6db60b9..c2e32bc 100644
--- a/src/empathy-chat-window.c
+++ b/src/empathy-chat-window.c
@@ -2104,3 +2104,17 @@ empathy_chat_window_present_chat (EmpathyChat *chat)
  	gtk_widget_grab_focus (chat->input_text_view);
 }
 
+guint
+empathy_chat_window_get_nb_rooms (EmpathyChatWindow *self)
+{
+	EmpathyChatWindowPriv *priv = GET_PRIV (self);
+	GList *l;
+	guint nb = 0;
+
+	for (l = priv->chats; l != NULL; l = g_list_next (l)) {
+		if (empathy_chat_is_room (EMPATHY_CHAT (l->data)))
+			nb++;
+	}
+
+	return nb;
+}
diff --git a/src/empathy-chat-window.h b/src/empathy-chat-window.h
index 4f1920a..9981fad 100644
--- a/src/empathy-chat-window.h
+++ b/src/empathy-chat-window.h
@@ -74,6 +74,7 @@ EmpathyChat *      empathy_chat_window_find_chat      (TpAccount        *account
 						       const gchar      *id);
 void               empathy_chat_window_present_chat   (EmpathyChat      *chat);
 
+guint              empathy_chat_window_get_nb_rooms (EmpathyChatWindow *window);
 
 G_END_DECLS