--- /dev/null
+/*******************************************************************************\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.impl;\r
+\r
+import org.eclipse.jface.viewers.ISelection;\r
+import org.eclipse.swt.events.MouseEvent;\r
+import org.eclipse.swt.events.MouseListener;\r
+import org.simantics.db.WriteGraph;\r
+import org.simantics.db.common.request.WriteRequest;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.management.ISessionContext;\r
+import org.simantics.utils.ReflectionUtils;\r
+import org.simantics.utils.ui.ISelectionUtils;\r
+\r
+abstract public class MouseListenerImpl<T> implements MouseListener, Widget {\r
+\r
+ private ISessionContext context;\r
+ private Object lastInput = null;\r
+ protected T single; \r
+ final private Class<?> clazz;\r
+ \r
+ public MouseListenerImpl(ISessionContext context) {\r
+ this.context = context;\r
+ clazz = ReflectionUtils.getSingleParameterType(getClass());\r
+ }\r
+ \r
+ @Override\r
+ public void mouseDown(MouseEvent e) {\r
+ }\r
+ \r
+ @Override\r
+ public void mouseUp(MouseEvent e) {\r
+ }\r
+ \r
+ @Override\r
+ public void mouseDoubleClick(MouseEvent e) {\r
+ \r
+ final Object input = lastInput;\r
+ \r
+ \r
+ try {\r
+\r
+ single = (T) ISelectionUtils.filterSingleSelection((ISelection)input, clazz);\r
+ \r
+ beforeApply(single);\r
+ \r
+ context.getSession().syncRequest(new WriteRequest() {\r
+\r
+ @SuppressWarnings("unchecked")\r
+ @Override\r
+ public void perform(WriteGraph graph) throws DatabaseException {\r
+\r
+// T single = (T) ISelectionUtils.filterSingleSelection((ISelection)input, clazz);\r
+ doubleClick(graph, single);\r
+ \r
+ }\r
+ \r
+ });\r
+ } catch (DatabaseException e1) {\r
+ e1.printStackTrace();\r
+ }\r
+ }\r
+\r
+ @Override\r
+ public void setInput(ISessionContext context, Object parameter) {\r
+ this.context = context;\r
+ lastInput = parameter;\r
+ }\r
+ \r
+ public void beforeApply(T input) {\r
+ \r
+ }\r
+ \r
+ abstract public void doubleClick(WriteGraph graph, T input) throws DatabaseException;\r
+ \r
+}\r
+
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