[polari] room: Add ::members-changed signal

[Florian Müllner <fmuellner src gnome org>]

commit ef46f01f0ca5269df257cc2db5efd85396da93e5
Author: Florian Müllner <fmuellner gnome org>
Date:   Wed Oct 9 11:56:11 2013 +0200

    room: Add ::members-changed signal
    
    Sometimes it's enough to know that the list of users has changed
    without being interested in the actual details of the change.
    Having to track six separate signals is inconvenient in that case,
    so add a generic ::members-changed signal.

 src/lib/polari-room.c |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)
---
diff --git a/src/lib/polari-room.c b/src/lib/polari-room.c
index ae050f9..38fbe55 100644
--- a/src/lib/polari-room.c
+++ b/src/lib/polari-room.c
@@ -58,6 +58,8 @@ enum
   MEMBER_KICKED,
   MEMBER_BANNED,
 
+  MEMBERS_CHANGED,
+
   LAST_SIGNAL
 };
 
@@ -281,6 +283,8 @@ on_group_contacts_changed (TpChannel  *channel,
                        g_ptr_array_index (added, i));
       break;
     }
+
+  g_signal_emit (user_data, signals[MEMBERS_CHANGED], 0);
 }
 
 static void
@@ -549,6 +553,14 @@ polari_room_class_init (PolariRoomClass *klass)
                   0,
                   NULL, NULL, NULL,
                   G_TYPE_NONE, 2, TP_TYPE_CONTACT, TP_TYPE_CONTACT);
+
+  signals[MEMBERS_CHANGED] =
+    g_signal_new ("members-changed",
+                  G_TYPE_FROM_CLASS (klass),
+                  G_SIGNAL_RUN_LAST,
+                  0,
+                  NULL, NULL, NULL,
+                  G_TYPE_NONE, 0);
 }
 
 static void