-/*******************************************************************************\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.modeling.ui.modelBrowser.handlers;\r
-\r
-import org.eclipse.core.commands.AbstractHandler;\r
-import org.eclipse.core.commands.ExecutionEvent;\r
-import org.eclipse.core.commands.ExecutionException;\r
-import org.eclipse.jface.viewers.ISelection;\r
-import org.eclipse.ui.PlatformUI;\r
-import org.eclipse.ui.handlers.HandlerUtil;\r
-import org.simantics.Simantics;\r
-import org.simantics.databoard.Bindings;\r
-import org.simantics.db.ReadGraph;\r
-import org.simantics.db.Resource;\r
-import org.simantics.db.common.request.ResourceRead;\r
-import org.simantics.db.common.utils.Logger;\r
-import org.simantics.db.exception.DatabaseException;\r
-import org.simantics.db.layer0.variable.Variable;\r
-import org.simantics.modeling.ModelingResources;\r
-import org.simantics.modeling.PropertyVariables;\r
-import org.simantics.ui.selection.WorkbenchSelectionUtils;\r
-import org.simantics.utils.ui.AdaptionUtils;\r
-\r
-public class ContextualHelp extends AbstractHandler {\r
-\r
- private static String getPossibleId(ExecutionEvent event) {\r
- String id = null;\r
- try {\r
- Resource element = WorkbenchSelectionUtils.getPossibleResource(event);\r
- id = Simantics.getSession().syncRequest(new ResourceRead<String>(element) {\r
-\r
- @Override\r
- public String perform(ReadGraph graph) throws DatabaseException {\r
- ModelingResources MOD = ModelingResources.getInstance(graph);\r
- Resource component = graph.getPossibleObject(element, MOD.ElementToComponent);\r
- if (component != null)\r
- return graph.getPossibleRelatedValue2(component, MOD.contextualHelpId, Bindings.STRING);\r
-\r
- Variable var = WorkbenchSelectionUtils.getPossibleVariable(event);\r
- if (var != null)\r
- return var.getPossiblePropertyValue(graph, MOD.contextualHelpId, Bindings.STRING);\r
-\r
- ISelection sel = HandlerUtil.getCurrentSelection(event);\r
- if (sel != null) {\r
- PropertyVariables vars = AdaptionUtils.adaptToSingle(sel, PropertyVariables.class);\r
- if (vars != null) {\r
- var = vars.getConfiguration();\r
- if (var != null)\r
- var.getPossiblePropertyValue(graph, MOD.contextualHelpId, Bindings.STRING);\r
- }\r
- }\r
- return null;\r
- }\r
- });\r
- } catch (DatabaseException e) {\r
- Logger.defaultLogError(e);\r
- }\r
- return id;\r
- }\r
-\r
- @Override\r
- public Object execute(ExecutionEvent event) throws ExecutionException {\r
-\r
- String id = getPossibleId(event);\r
- if (id != null)\r
- PlatformUI.getWorkbench().getHelpSystem().displayHelp(id);\r
-\r
- return null;\r
-\r
- }\r
-\r
-}\r
+/*******************************************************************************
+ * Copyright (c) 2007, 2017 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * VTT Technical Research Centre of Finland - initial API and implementation
+ * Semantum Oy - #7116 regression fix
+ *******************************************************************************/
+package org.simantics.modeling.ui.modelBrowser.handlers;
+
+import org.eclipse.core.commands.AbstractHandler;
+import org.eclipse.core.commands.ExecutionEvent;
+import org.eclipse.core.commands.ExecutionException;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.ui.PlatformUI;
+import org.eclipse.ui.handlers.HandlerUtil;
+import org.simantics.Simantics;
+import org.simantics.databoard.Bindings;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.common.request.UniqueRead;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.layer0.variable.Variable;
+import org.simantics.modeling.ModelingResources;
+import org.simantics.modeling.PropertyVariables;
+import org.simantics.ui.selection.WorkbenchSelectionUtils;
+import org.simantics.utils.ui.AdaptionUtils;
+import org.slf4j.LoggerFactory;
+
+public class ContextualHelp extends AbstractHandler {
+
+ private static final org.slf4j.Logger LOGGER = LoggerFactory.getLogger(ContextualHelp.class);
+
+ private static String getPossibleId(ExecutionEvent event) {
+ try {
+ ISelection sel = HandlerUtil.getCurrentSelection(event);
+ Resource resource = WorkbenchSelectionUtils.getPossibleResource(sel);
+ Variable variable = WorkbenchSelectionUtils.getPossibleVariable(sel);
+ if (sel.isEmpty() && resource == null && variable == null)
+ return null;
+
+ return Simantics.getSession().syncRequest(new UniqueRead<String>() {
+ @Override
+ public String perform(ReadGraph graph) throws DatabaseException {
+ ModelingResources MOD = ModelingResources.getInstance(graph);
+ if (resource != null) {
+ Resource component = graph.getPossibleObject(resource, MOD.ElementToComponent);
+ String id = component != null ? graph.getPossibleRelatedValue2(component, MOD.contextualHelpId, Bindings.STRING) : null;
+ if (id != null)
+ return id;
+ id = graph.getPossibleRelatedValue2(resource, MOD.contextualHelpId, Bindings.STRING);
+ if (id != null)
+ return id;
+ }
+
+ if (variable != null) {
+ String id = variable.getPossiblePropertyValue(graph, MOD.contextualHelpId, Bindings.STRING);
+ if (id != null)
+ return id;
+ }
+
+ // TODO: consider removing this block
+ if (sel != null) {
+ PropertyVariables vars = AdaptionUtils.adaptToSingle(sel, PropertyVariables.class);
+ Variable var = vars != null ? vars.getConfiguration() : null;
+ String id = var != null ? var.getPossiblePropertyValue(graph, MOD.contextualHelpId, Bindings.STRING) : null;
+ if (id != null)
+ return id;
+ }
+
+ return null;
+ }
+ });
+ } catch (DatabaseException e) {
+ LOGGER.error("", e);
+ return null;
+ }
+ }
+
+ @Override
+ public Object execute(ExecutionEvent event) throws ExecutionException {
+ String id = getPossibleId(event);
+ if (id != null)
+ PlatformUI.getWorkbench().getHelpSystem().displayHelp(id);
+ return null;
+ }
+
+}