[tracker/external-crawler: 30/31] libtracker-miner: Add TrackerMiner::introspection-handler property

[Martyn James Russell <mr src gnome org>]

commit b0023ab4305862b6b6f2c131eab45735dcefb68f
Author: Martyn Russell <martyn lanedo com>
Date:   Fri Jun 13 12:40:08 2014 +0100

    libtracker-miner: Add TrackerMiner::introspection-handler property
    
    Allows miners to provide a GDBusInterfaceVTable structure to be called to
    handle their extra method calls.
    
    This is to be used with the TrackerMiner::introspection-xml property.

 src/libtracker-miner/tracker-miner-object.c |   42 +++++++++++++++++++++++---
 1 files changed, 37 insertions(+), 5 deletions(-)
---
diff --git a/src/libtracker-miner/tracker-miner-object.c b/src/libtracker-miner/tracker-miner-object.c
index f5d110b..10dbb29 100644
--- a/src/libtracker-miner/tracker-miner-object.c
+++ b/src/libtracker-miner/tracker-miner-object.c
@@ -122,6 +122,7 @@ struct _TrackerMinerPrivate {
        gchar *status;
        gdouble progress;
        gchar *introspection_xml;
+       GDBusInterfaceVTable *introspection_handler;
        gint remaining_time;
        gint availability_cookie;
        GDBusConnection *d_connection;
@@ -147,7 +148,8 @@ enum {
        PROP_STATUS,
        PROP_PROGRESS,
        PROP_REMAINING_TIME,
-       PROP_INTROSPECTION_XML
+       PROP_INTROSPECTION_XML,
+       PROP_INTROSPECTION_HANDLER
 };
 
 enum {
@@ -399,6 +401,12 @@ tracker_miner_class_init (TrackerMinerClass *klass)
                                                              "Introspection XML to *append* to the standard 
miner interface provided",
                                                              NULL,
                                                              G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
+       g_object_class_install_property (object_class,
+                                        PROP_INTROSPECTION_HANDLER,
+                                        g_param_spec_pointer ("introspection-handler",
+                                                              "Introspection Handler",
+                                                              "Introspection Method Handler function, 
expected to be a pointer to GDBusInterfaceVTable",
+                                                              G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
 
        g_type_class_add_private (object_class, sizeof (TrackerMinerPrivate));
 }
@@ -481,10 +489,10 @@ miner_initable_init (GInitable     *initable,
        miner->priv->registration_id =
                g_dbus_connection_register_object (miner->priv->d_connection,
                                                   miner->priv->full_path,
-                                              miner->priv->introspection_data->interfaces[0],
-                                              &interface_vtable,
-                                              miner,
-                                              NULL,
+                                                  miner->priv->introspection_data->interfaces[0],
+                                                  &interface_vtable,
+                                                  miner,
+                                                  NULL,
                                                   &inner_error);
        if (inner_error) {
                g_propagate_error (error, inner_error);
@@ -709,6 +717,11 @@ miner_set_property (GObject      *object,
                miner->priv->introspection_xml = g_value_dup_string (value);
                break;
        }
+       case PROP_INTROSPECTION_HANDLER: {
+               /* Only set on constructor */
+               miner->priv->introspection_handler = g_value_get_pointer (value);
+               break;
+       }
        default:
                G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
                break;
@@ -739,6 +752,9 @@ miner_get_property (GObject    *object,
        case PROP_INTROSPECTION_XML:
                g_value_set_string (value, miner->priv->introspection_xml);
                break;
+       case PROP_INTROSPECTION_HANDLER:
+               g_value_set_pointer (value, miner->priv->introspection_handler);
+               break;
        default:
                G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
                break;
@@ -1468,7 +1484,23 @@ handle_method_call (GDBusConnection       *connection,
                handle_method_call_get_progress (miner, invocation, parameters);
        } else if (g_strcmp0 (method_name, "GetStatus") == 0) {
                handle_method_call_get_status (miner, invocation, parameters);
+       } else if (miner->priv->introspection_handler != NULL) {
+               /* Call introspection-handler functions next */
+               GDBusInterfaceMethodCallFunc func = miner->priv->introspection_handler->method_call;
+
+               if (func != NULL) {
+                       (func) (connection,
+                               sender,
+                               object_path,
+                               interface_name,
+                               method_name,
+                               parameters,
+                               invocation,
+                               user_data);
+                       return;
+               }
        } else {
+               /* No one to handle this function? */
                g_assert_not_reached ();
        }
 }