static void
finalize (GObject *object)
{
GtkSearchEngineTracker *tracker;
tracker = GTK_SEARCH_ENGINE_TRACKER (object);
if (tracker->priv->cancellable)
{
g_cancellable_cancel (tracker->priv->cancellable);
g_object_unref (tracker->priv->cancellable);
tracker->priv->cancellable = NULL;
}
if (tracker->priv->query)
{
g_object_unref (tracker->priv->query);
tracker->priv->query = NULL;
}
if (tracker->priv->connection)
{
g_object_unref (tracker->priv->connection);
tracker->priv->connection = NULL;
}
G_OBJECT_CLASS (_gtk_search_engine_tracker_parent_class)->finalize (object);
}
static void
cursor_callback (GObject *object,
GAsyncResult *result,
gpointer user_data)
{
GtkSearchEngineTracker *tracker;
GError *error = NULL;
TrackerSparqlCursor *cursor;
GList *hits;
gboolean success;
gdk_threads_enter ();
tracker = GTK_SEARCH_ENGINE_TRACKER (user_data);
cursor = TRACKER_SPARQL_CURSOR (object);
success = tracker_sparql_cursor_next_finish (cursor, result, &error);
if (error)
{
_gtk_search_engine_error (GTK_SEARCH_ENGINE (tracker), error->message);
g_error_free (error);
if (cursor)
g_object_unref (cursor);
gdk_threads_leave ();
return;
}
if (!success)
{
_gtk_search_engine_finished (GTK_SEARCH_ENGINE (tracker));
if (cursor)
g_object_unref (cursor);
gdk_threads_leave ();
return;
}
/* We iterate result by result, not n at a time. */
hits = g_list_append (NULL, (gchar*) tracker_sparql_cursor_get_string (cursor, 0, NULL));
_gtk_search_engine_hits_added (GTK_SEARCH_ENGINE (tracker), hits);
g_list_free (hits);
/* Get next */
cursor_next (tracker, cursor);
gdk_threads_leave ();
}
static void
gtk_search_engine_tracker_stop (GtkSearchEngine *engine)
{
GtkSearchEngineTracker *tracker;
tracker = GTK_SEARCH_ENGINE_TRACKER (engine);
if (tracker->priv->query && tracker->priv->query_pending)
{
tracker_cancel_last_call (tracker->priv->client);
tracker->priv->query_pending = FALSE;
}
}
static void
gtk_search_engine_tracker_start (GtkSearchEngine *engine)
{
GtkSearchEngineTracker *tracker;
gchar *search_text, *location, *location_uri;
tracker = GTK_SEARCH_ENGINE_TRACKER (engine);
if (tracker->priv->query_pending)
return;
if (tracker->priv->query == NULL)
return;
search_text = _gtk_query_get_text (tracker->priv->query);
location_uri = _gtk_query_get_location (tracker->priv->query);
location = NULL;
if (location_uri)
{
if (tracker->priv->version == TRACKER_0_6)
{
location = g_filename_from_uri (location_uri, NULL, NULL);
g_free (location_uri);
}
else
location = location_uri;
}
if (location)
{
tracker_search_metadata_by_text_and_location_async (tracker->priv->client,
search_text,
location,
search_callback,
tracker);
g_free (location);
}
else
{
tracker_search_metadata_by_text_async (tracker->priv->client,
search_text,
search_callback,
tracker);
}
tracker->priv->query_pending = TRUE;
g_free (search_text);
}
static void
gtk_search_engine_tracker_stop (GtkSearchEngine *engine)
{
GtkSearchEngineTracker *tracker;
tracker = GTK_SEARCH_ENGINE_TRACKER (engine);
g_debug ("Query stopping");
if (tracker->priv->query && tracker->priv->query_pending)
{
g_cancellable_cancel (tracker->priv->cancellable);
tracker->priv->query_pending = FALSE;
}
}
static void
gtk_search_engine_tracker_set_query (GtkSearchEngine *engine,
GtkQuery *query)
{
GtkSearchEngineTracker *tracker;
tracker = GTK_SEARCH_ENGINE_TRACKER (engine);
if (query)
g_object_ref (query);
if (tracker->priv->query)
g_object_unref (tracker->priv->query);
tracker->priv->query = query;
}
static void
finalize (GObject *object)
{
GtkSearchEngineTracker *tracker;
tracker = GTK_SEARCH_ENGINE_TRACKER (object);
if (tracker->priv->query)
{
g_object_unref (tracker->priv->query);
tracker->priv->query = NULL;
}
tracker_disconnect (tracker->priv->client);
G_OBJECT_CLASS (_gtk_search_engine_tracker_parent_class)->finalize (object);
}
static void
search_callback (gchar **results,
GError *error,
gpointer user_data)
{
GtkSearchEngineTracker *tracker;
gchar **results_p;
GList *hit_uris;
tracker = GTK_SEARCH_ENGINE_TRACKER (user_data);
hit_uris = NULL;
tracker->priv->query_pending = FALSE;
if (error)
{
_gtk_search_engine_error ( GTK_SEARCH_ENGINE (tracker), error->message);
g_error_free (error);
return;
}
if (!results)
return;
for (results_p = results; *results_p; results_p++)
{
gchar *uri;
if (tracker->priv->version == TRACKER_0_6)
uri = g_filename_to_uri (*results_p, NULL, NULL);
else
uri = *results_p;
if (uri)
hit_uris = g_list_prepend (hit_uris, uri);
}
_gtk_search_engine_hits_added (GTK_SEARCH_ENGINE (tracker), hit_uris);
_gtk_search_engine_finished (GTK_SEARCH_ENGINE (tracker));
g_strfreev (results);
if (tracker->priv->version == TRACKER_0_6)
g_list_foreach (hit_uris, (GFunc)g_free, NULL);
g_list_free (hit_uris);
}
static void
query_callback (GObject *object,
GAsyncResult *result,
gpointer user_data)
{
GtkSearchEngineTracker *tracker;
TrackerSparqlConnection *connection;
TrackerSparqlCursor *cursor;
GError *error = NULL;
gdk_threads_enter ();
tracker = GTK_SEARCH_ENGINE_TRACKER (user_data);
tracker->priv->query_pending = FALSE;
connection = TRACKER_SPARQL_CONNECTION (object);
cursor = tracker_sparql_connection_query_finish (connection,
result,
&error);
g_debug ("Query returned cursor:%p", cursor);
if (error)
{
_gtk_search_engine_error (GTK_SEARCH_ENGINE (tracker), error->message);
g_error_free (error);
gdk_threads_leave ();
return;
}
if (!cursor)
{
_gtk_search_engine_finished (GTK_SEARCH_ENGINE (tracker));
gdk_threads_leave ();
return;
}
cursor_next (tracker, cursor);
gdk_threads_leave ();
}
static void
gtk_search_engine_tracker_start (GtkSearchEngine *engine)
{
GtkSearchEngineTracker *tracker;
gchar *search_text, *location_uri;
GString *sparql;
tracker = GTK_SEARCH_ENGINE_TRACKER (engine);
if (tracker->priv->query_pending)
{
g_debug ("Attempt to start a new search while one is pending, doing nothing");
return;
}
if (tracker->priv->query == NULL)
{
g_debug ("Attempt to start a new search with no GtkQuery, doing nothing");
return;
}
search_text = _gtk_query_get_text (tracker->priv->query);
location_uri = _gtk_query_get_location (tracker->priv->query);
g_debug ("Query starting, search criteria:'%s', location:'%s'", search_text, location_uri);
#ifdef FTS_MATCHING
/* Using FTS: */
sparql = g_string_new ("SELECT nie:url(?urn) "
"WHERE {"
" ?urn a nfo:FileDataObject ;"
" tracker:available true ; "
" fts:match ");
sparql_append_string_literal (sparql, search_text);
if (location_uri)
{
g_string_append (sparql, " . FILTER (fn:starts-with(nie:url(?urn),");
sparql_append_string_literal (sparql, location_uri);
g_string_append (sparql, "))");
}
g_string_append (sparql, " } ORDER BY DESC(fts:rank(?urn)) ASC(nie:url(?urn))");
#else /* FTS_MATCHING */
/* Using filename matching: */
sparql = g_string_new ("SELECT nie:url(?urn) "
"WHERE {"
" ?urn a nfo:FileDataObject ;"
" tracker:available true ."
" FILTER (fn:contains(nfo:fileName(?urn),");
sparql_append_string_literal (sparql, search_text);
g_string_append (sparql,
"))"
"} ORDER BY DESC(nie:url(?urn)) DESC(nfo:fileName(?urn))");
#endif /* FTS_MATCHING */
tracker_sparql_connection_query_async (tracker->priv->connection,
sparql->str,
tracker->priv->cancellable,
query_callback,
tracker);
g_string_free (sparql, TRUE);
tracker->priv->query_pending = TRUE;
g_free (search_text);
}
