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-rw-r--r--src/engine/events/RequestMetadataEvent.cpp85
1 files changed, 85 insertions, 0 deletions
diff --git a/src/engine/events/RequestMetadataEvent.cpp b/src/engine/events/RequestMetadataEvent.cpp
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+++ b/src/engine/events/RequestMetadataEvent.cpp
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+/* This file is part of Ingen.
+ * Copyright (C) 2007 Dave Robillard <http://drobilla.net>
+ *
+ * Ingen is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at your option) any later
+ * version.
+ *
+ * Ingen is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "RequestMetadataEvent.hpp"
+#include <string>
+#include "Responder.hpp"
+#include "Engine.hpp"
+#include "GraphObjectImpl.hpp"
+#include "EngineStore.hpp"
+#include "interface/ClientInterface.hpp"
+#include "ClientBroadcaster.hpp"
+using std::string;
+
+namespace Ingen {
+
+
+RequestMetadataEvent::RequestMetadataEvent(Engine& engine,
+ SharedPtr<Responder> responder,
+ SampleCount timestamp,
+ bool property,
+ const string& node_path,
+ const string& key)
+ : QueuedEvent(engine, responder, timestamp)
+ , _path(node_path)
+ , _property(property)
+ , _key(key)
+ , _object(NULL)
+{
+}
+
+
+void
+RequestMetadataEvent::pre_process()
+{
+ if (_responder->client()) {
+ _object = _engine.engine_store()->find_object(_path);
+ if (_object == NULL) {
+ QueuedEvent::pre_process();
+ return;
+ }
+ }
+
+ if (_property)
+ _value = _object->get_property(_key);
+ else
+ _value = _object->get_variable(_key);
+
+ QueuedEvent::pre_process();
+}
+
+
+void
+RequestMetadataEvent::post_process()
+{
+ if (_responder->client()) {
+ if (!_object) {
+ string msg = "Unable to find variable subject ";
+ msg += _path;
+ _responder->respond_error(msg);
+ } else {
+ _responder->respond_ok();
+ _responder->client()->set_variable(_path, _key, _value);
+ }
+ } else {
+ _responder->respond_error("Unknown client");
+ }
+}
+
+
+} // namespace Ingen
+