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package eu.etaxonomy.taxeditor.handler.defaultHandler;
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import java.util.List;
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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 eu.etaxonomy.cdm.model.common.ICdmBase;
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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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import eu.etaxonomy.taxeditor.view.CdmViewerUtil;
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public class OpenReferencingObjectsViewHandler {
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private List<UuidAndTitleCache<? extends ICdmBase>> selectedObjectList;
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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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if (selectedObjectList != null && !selectedObjectList.isEmpty()) {
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UuidAndTitleCache<? extends ICdmBase> dto = selectedObjectList.get(0);
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view.handleNewSelection(dto);
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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) //we explicitly want to allow calling the view recursively
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|| part.getObject() == null ; //we show the menu item only if the view is not yet open (otherwise by setting the focus data will be shown anyway
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//but this may change in future for some data where explicitly calling the view is required
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selectedObjectList = null;
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if (canExecute){
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String commandId = menuItem.getCommand().getElementId();
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Object selectedObject = menuItem.getTransientData().get(commandId+".uuid");
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selectedObjectList = CdmViewerUtil.transformSelectionToUuidAndTitleCacheList(selectedObject);
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canExecute = selectedObjectList.size() == 1;
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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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