+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 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.graph.impl.contribution;\r
+\r
+import java.util.Map;\r
+\r
+import org.eclipse.jface.resource.ImageDescriptor;\r
+import org.simantics.browsing.ui.BuiltinKeys.ImagerKey;\r
+import org.simantics.browsing.ui.NodeContext;\r
+import org.simantics.browsing.ui.PrimitiveQueryUpdater;\r
+import org.simantics.db.AsyncReadGraph;\r
+import org.simantics.db.procedure.Listener;\r
+import org.simantics.db.procedure.Procedure;\r
+import org.simantics.utils.ui.ErrorLogger;\r
+\r
+/**\r
+ * Implement {@link #children(AsyncReadGraph)} and {@link #hasChildren(AsyncReadGraph)}.\r
+ * \r
+ * @author Tuukka Lehtonen\r
+ */\r
+@SuppressWarnings("unchecked")\r
+public abstract class ImagerContributionImpl extends FinalImagerContributionImpl {\r
+\r
+ public ImagerContributionImpl(PrimitiveQueryUpdater updater,\r
+ NodeContext context, ImagerKey key) {\r
+ super(updater, context, key);\r
+ }\r
+\r
+ @Override\r
+ protected Procedure<Map<String, ImageDescriptor>> createProcedure() {\r
+\r
+ return new Listener<Map<String, ImageDescriptor>>() {\r
+\r
+ boolean executed = false;\r
+ boolean disposed = false;\r
+\r
+ @Override\r
+ public void execute(Map<String, ImageDescriptor> result) {\r
+ replaceResult(result);\r
+ executed = true;\r
+ }\r
+\r
+ @Override\r
+ public boolean isDisposed() {\r
+ \r
+ if(disposed) return true;\r
+ \r
+ if((updater.isDisposed() || !updater.isShown(context)) && executed) {\r
+ content = null;\r
+ disposed = true;\r
+ return true;\r
+ } else {\r
+ return false;\r
+ }\r
+ \r
+ }\r
+\r
+ @Override\r
+ public void exception(Throwable t) {\r
+ ErrorLogger.defaultLogError("ImagerContributionImpl.imagerQuery failed, see exception for details.", t);\r
+ }\r
+\r
+ };\r
+\r
+ }\r
+\r
+}\r