[telepathy-mission-control/master] McdAccount: add a way to adjust presence temporarily

[Simon McVittie]

This can be used for auto-away embedded in MC (as seen in
McdMaster).
---
 src/mcd-account.c |   15 ++++++++++++++-
 src/mcd-account.h |    2 ++
 2 files changed, 16 insertions(+), 1 deletions(-)

diff --git a/src/mcd-account.c b/src/mcd-account.c
index 14dfb1f..469b5f9 100644
--- a/src/mcd-account.c
+++ b/src/mcd-account.c
@@ -134,6 +134,7 @@ struct _McdAccountPrivate
     guint enabled : 1;
     guint valid : 1;
     guint loaded : 1;
+    guint temporary_presence : 1;
 
     /* These fields are used to cache the changed properties */
     GHashTable *changed_properties;
@@ -457,7 +458,8 @@ mcd_account_request_presence_int (McdAccount *account,
 	changed = TRUE;
     }
 
-    if (!changed) return changed;
+    if (!(changed || priv->temporary_presence))
+        return FALSE;
 
     if (type >= TP_CONNECTION_PRESENCE_TYPE_AVAILABLE && !priv->connection)
     {
@@ -2393,3 +2395,14 @@ _mcd_account_set_connection (McdAccount *account, McdConnection *connection)
     }
 }
 
+void
+_mcd_account_request_temporary_presence (McdAccount *self,
+                                         TpConnectionPresenceType type,
+                                         const gchar *status)
+{
+    /* tell the McdConnection (if it exists) to update our presence, but don't
+     * alter RequestedPresence (so we can go back to the old value later) */
+    g_signal_emit (self, _mcd_account_signals[REQUESTED_PRESENCE_CHANGED],
+                   0, type, status, "");
+    self->priv->temporary_presence = TRUE;
+}
diff --git a/src/mcd-account.h b/src/mcd-account.h
index 9f261c8..9adeca8 100644
--- a/src/mcd-account.h
+++ b/src/mcd-account.h
@@ -119,6 +119,8 @@ void mcd_account_get_requested_presence (McdAccount *account,
 					 TpConnectionPresenceType *presence,
 					 const gchar **status,
 					 const gchar **message);
+G_GNUC_INTERNAL void _mcd_account_request_temporary_presence (McdAccount *self,
+    TpConnectionPresenceType type, const gchar *status);
 
 gboolean mcd_account_get_connect_automatically (McdAccount *account);
 void mcd_account_get_automatic_presence (McdAccount *account,
-- 
1.5.6.5