origin: Add API to query supported protocols

This will allow selecting a suitable origin when placing outgoing calls.

plugins/dummy/calls-dummy-origin.c

@@ -153,6 +153,17 @@ dial (CallsOrigin *origin, const gchar *number)
 }
 
 
+static gboolean
+supports_protocol (CallsOrigin *origin,
+                   const char  *protocol)
+{
+  g_assert (protocol != NULL);
+  g_assert (CALLS_IS_DUMMY_ORIGIN (origin));
+
+  return TRUE;
+}
+
+
 CallsDummyOrigin *
 calls_dummy_origin_new (const gchar *name)
 {
@@ -273,6 +284,7 @@ static void
 calls_dummy_origin_origin_interface_init (CallsOriginInterface *iface)
 {
   iface->dial = dial;
+  iface->supports_protocol = supports_protocol;
 }
 
 

plugins/mm/calls-mm-origin.c

@@ -341,6 +341,17 @@ dial (CallsOrigin *origin, const gchar *number)
 }
 
 
+static gboolean
+supports_protocol (CallsOrigin *origin,
+                   const char  *protocol)
+{
+  g_assert (protocol);
+  g_assert (CALLS_IS_MM_ORIGIN (origin));
+
+  return g_strcmp0 (protocol, "tel") == 0;
+}
+
+
 static void
 remove_calls (CallsMMOrigin *self, const gchar *reason)
 {
@@ -897,6 +908,7 @@ static void
 calls_mm_origin_origin_interface_init (CallsOriginInterface *iface)
 {
   iface->dial = dial;
+  iface->supports_protocol = supports_protocol;
 }
 
 

plugins/ofono/calls-ofono-origin.c

@@ -101,6 +101,16 @@ dial (CallsOrigin *origin, const gchar *number)
 }
 
 
+static gboolean
+supports_protocol (CallsOrigin *origin,
+                   const char  *protocol)
+{
+  g_assert (protocol);
+  g_assert (CALLS_IS_OFONO_ORIGIN (origin));
+
+  return g_strcmp0 (protocol, "tel") == 0;
+}
+
 CallsOfonoOrigin *
 calls_ofono_origin_new (GDBOModem *modem)
 {
@@ -576,6 +586,7 @@ static void
 calls_ofono_origin_origin_interface_init (CallsOriginInterface *iface)
 {
   iface->dial = dial;
+  iface->supports_protocol = supports_protocol;
 }
 
 

plugins/sip/calls-sip-origin.c

@@ -994,6 +994,26 @@ init_sip_account (CallsSipOrigin *self,
 }
 
 
+static gboolean
+supports_protocol (CallsOrigin *origin,
+                   const char  *protocol)
+{
+  CallsSipOrigin *self;
+  g_assert (protocol);
+  g_assert (CALLS_IS_SIP_ORIGIN (origin));
+
+  self = CALLS_SIP_ORIGIN (origin);
+
+  if (g_strcmp0 (protocol, "sip") == 0)
+    return TRUE;
+  if (g_strcmp0 (protocol, "sips") == 0)
+    return g_strcmp0 (self->protocol_prefix, "sips") == 0;
+
+  /* TODO need to set a property (from the UI) to allow using origin for telephony */
+  return FALSE;
+}
+
+
 static void
 calls_sip_origin_set_property (GObject      *object,
                                guint         property_id,
@@ -1204,6 +1224,7 @@ static void
 calls_sip_origin_origin_interface_init (CallsOriginInterface *iface)
 {
   iface->dial = dial;
+  iface->supports_protocol = supports_protocol;
 }
 
 static void