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package eu.etaxonomy.taxeditor.handler.defaultHandler;
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import java.util.UUID;
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import javax.inject.Named;
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import org.eclipse.e4.core.di.annotations.CanExecute;
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import org.eclipse.e4.core.di.annotations.Execute;
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import org.eclipse.e4.ui.model.application.ui.basic.MPart;
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import org.eclipse.e4.ui.model.application.ui.menu.MHandledMenuItem;
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import org.eclipse.e4.ui.services.IServiceConstants;
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import org.eclipse.e4.ui.workbench.modeling.EPartService;
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import org.eclipse.e4.ui.workbench.modeling.EPartService.PartState;
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import org.eclipse.jface.viewers.IStructuredSelection;
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import eu.etaxonomy.cdm.model.common.CdmBase;
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import eu.etaxonomy.cdm.persistence.dto.UuidAndTitleCache;
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import eu.etaxonomy.taxeditor.bulkeditor.AppModelId;
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import eu.etaxonomy.taxeditor.editor.IReferencingObjectsView;
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public class OpenReferencingObjectsViewHandler {
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Object selectedObject;
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@Execute
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public void execute(EPartService partService) {
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MPart part = partService.createPart(AppModelId.PARTDESCRIPTOR_EU_ETAXONOMY_TAXEDITOR_BULKEDITOR_REFERENCINGOBJECTS_E4_REFERENCINGOBJECTSVIEWE4);
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part = partService.showPart(part, PartState.ACTIVATE);
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IReferencingObjectsView view = (IReferencingObjectsView)part.getObject();
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UUID uuid = null;
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Class clazz = null;
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if (selectedObject instanceof IStructuredSelection){
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selectedObject = ((IStructuredSelection)selectedObject).getFirstElement();
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}
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if (selectedObject instanceof CdmBase){
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uuid = ((CdmBase)selectedObject).getUuid();
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clazz = selectedObject.getClass();
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} else if (selectedObject instanceof UuidAndTitleCache){
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uuid = ((UuidAndTitleCache)selectedObject).getUuid();
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clazz = ((UuidAndTitleCache)selectedObject).getType();
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}
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if (uuid != null && clazz != null){
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view.updateReferencingObjects(uuid, clazz);
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}
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}
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@CanExecute
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public boolean canExecute(EPartService partService,
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@Named(IServiceConstants.ACTIVE_PART)MPart activePart,
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MHandledMenuItem menuItem) {
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boolean canExecute = false;
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MPart part = partService.findPart(AppModelId.PARTDESCRIPTOR_EU_ETAXONOMY_TAXEDITOR_BULKEDITOR_REFERENCINGOBJECTS_E4_REFERENCINGOBJECTSVIEWE4);
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canExecute = !part.equals(activePart);
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if (canExecute){
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String commandId = menuItem.getCommand().getElementId();
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selectedObject = menuItem.getTransientData().get(commandId+".uuid");
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if (selectedObject instanceof IStructuredSelection){
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canExecute = ((IStructuredSelection)selectedObject).size() == 1;
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}
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}
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menuItem.setVisible(canExecute);
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return canExecute;
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}
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}
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