Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.browsing.ui.swt / src / org / simantics / browsing / ui / swt / widgets / IdentityFactory.java

diff --git a/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/widgets/IdentityFactory.java b/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/widgets/IdentityFactory.java
new file mode 100644 (file)
index 0000000..7ce2aac
--- /dev/null
+++ b/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/widgets/IdentityFactory.java
@@ -0,0 +1,40 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2012 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.browsing.ui.swt.widgets;\r
+\r
+import org.eclipse.jface.viewers.ISelection;\r
+import org.simantics.browsing.ui.swt.widgets.impl.ReadFactory;\r
+import org.simantics.db.management.ISessionContext;\r
+import org.simantics.db.procedure.Listener;\r
+import org.simantics.utils.ReflectionUtils;\r
+import org.simantics.utils.ui.ISelectionUtils;\r
+\r
+\r
+public class IdentityFactory<T> implements ReadFactory<T, T> {\r
+\r
+       final Class<?> inputClass;\r
+       \r
+       public IdentityFactory() {\r
+               inputClass = ReflectionUtils.getSingleParameterType(getClass());\r
+       }\r
+       \r
+       @SuppressWarnings("unchecked")\r
+       @Override\r
+       public void listen(ISessionContext context, Object input, Listener<T> listener) {\r
+               \r
+               final Object inputContents = ISelectionUtils.filterSingleSelection((ISelection)input, inputClass);\r
+               listener.execute((T)inputContents);\r
+               \r
+       }\r
+\r
+       \r
+}\r