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/**
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* Copyright (C) 2017 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.view.e4;
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import java.util.Collection;
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import java.util.Set;
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import javax.annotation.PreDestroy;
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import javax.inject.Inject;
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import javax.inject.Named;
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import org.apache.log4j.Logger;
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import org.eclipse.e4.core.contexts.IEclipseContext;
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import org.eclipse.e4.core.di.annotations.Optional;
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import org.eclipse.e4.ui.di.PersistState;
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import org.eclipse.e4.ui.di.UISynchronize;
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import org.eclipse.e4.ui.model.application.ui.basic.MPart;
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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.ESelectionService;
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import org.eclipse.jface.viewers.ISelectionChangedListener;
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import org.eclipse.jface.viewers.IStructuredSelection;
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import org.eclipse.jface.viewers.StructuredSelection;
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import org.eclipse.jface.viewers.Viewer;
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import org.eclipse.swt.SWTException;
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import org.springframework.security.core.GrantedAuthority;
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import eu.etaxonomy.cdm.api.conversation.ConversationHolder;
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import eu.etaxonomy.cdm.api.conversation.IConversationEnabled;
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import eu.etaxonomy.cdm.api.service.ITermService;
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import eu.etaxonomy.cdm.api.service.IVocabularyService;
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import eu.etaxonomy.cdm.hibernate.HibernateProxyHelper;
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import eu.etaxonomy.cdm.model.name.TaxonName;
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import eu.etaxonomy.cdm.model.taxon.Taxon;
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import eu.etaxonomy.cdm.model.taxon.TaxonNode;
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import eu.etaxonomy.cdm.model.taxon.TaxonRelationship;
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import eu.etaxonomy.cdm.persistence.dto.TermDto;
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import eu.etaxonomy.cdm.persistence.dto.TermVocabularyDto;
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import eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeMap;
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import eu.etaxonomy.taxeditor.editor.ITaxonEditor;
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import eu.etaxonomy.taxeditor.model.IDirtyMarkable;
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import eu.etaxonomy.taxeditor.model.MessagingUtils;
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import eu.etaxonomy.taxeditor.operation.IPostOperationEnabled;
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import eu.etaxonomy.taxeditor.preference.PreferencesUtil;
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import eu.etaxonomy.taxeditor.security.RequiredPermissions;
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import eu.etaxonomy.taxeditor.store.CdmStore;
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import eu.etaxonomy.taxeditor.view.e4.details.DetailsPartE4;
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import eu.etaxonomy.taxeditor.view.e4.details.DetailsViewerE4;
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import eu.etaxonomy.taxeditor.workbench.WorkbenchUtility;
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import eu.etaxonomy.taxeditor.workbench.part.ISelectionElementEditingPart;
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/**
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* @author pplitzner
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* @since Aug 10, 2017
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*/
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public abstract class AbstractCdmEditorPartE4
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implements IConversationEnabled, IDirtyMarkable, ISelectionElementEditingPart, IPostOperationEnabled{
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private DelaySelection delaySelection = null;
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/**
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* This is the monitor for the DelaySelection runnable.
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* If it is <code>true</code> then it is currently delaying a selection.
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*/
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private boolean isInDelay;
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private boolean isEnabled = true;
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private static final Logger logger = Logger.getLogger(AbstractCdmEditorPartE4.class);
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/**
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* This class invokes internal_selectionChanged() in a separate thread.
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* This allows an asynchronous and/or delayed handling of selection changes
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*/
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private class DelaySelection implements Runnable{
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private Object selection;
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private MPart activePart;
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private MPart thisPart;
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public DelaySelection(Object selection, MPart activePart, MPart thisPart) {
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super();
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this.selection = selection;
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this.activePart= activePart;
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this.thisPart = thisPart;
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}
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@Override
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public void run() {
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try{
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selectionChanged_internal(selection, activePart, thisPart);
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}
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finally{
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isInDelay = false;
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}
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}
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public synchronized void setSelection(Object selection) {
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this.selection = selection;
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}
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public synchronized void setActivePart(MPart activePart) {
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this.activePart = activePart;
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}
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public synchronized void setThisPart(MPart thisPart) {
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this.thisPart = thisPart;
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}
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}
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protected Viewer viewer;
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protected MPart thisPart;
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protected MPart selectionProvidingPart;
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protected Object previousSelection;
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protected ISelectionChangedListener selectionChangedListener;
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public ISelectionChangedListener getSelectionChangedListener() {
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return selectionChangedListener;
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}
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@Inject
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protected ESelectionService selService;
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@Inject
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protected IEclipseContext context;
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protected abstract void selectionChanged_internal(Object selection, MPart activePart, MPart thisPart);
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@Inject
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public void selectionChanged(
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@Optional@Named(IServiceConstants.ACTIVE_SELECTION)Object selection,
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@Optional@Named(IServiceConstants.ACTIVE_PART)MPart activePart,
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MPart thisPart, UISynchronize sync, EPartService partService){
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//multiple selections are not supported
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if(activePart!=null
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&& thisPart!=null
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&& !activePart.equals(thisPart)
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&& selection instanceof IStructuredSelection
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&& ((IStructuredSelection) selection).size()>1){
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showEmptyPage();
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return;
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}
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// no active editor found
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if(activePart==thisPart && WorkbenchUtility.getActiveEditorPart(partService)==null){
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showEmptyPage();
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return;
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}
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if (viewer != null && viewer.getControl()!= null && viewer.getInput() != null && !viewer.getControl().isDisposed()){
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try{
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viewer.getControl().setEnabled(isEnabled);
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}catch(SWTException e){
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logger.debug("Something went wrong for viewer.getControl().setEnabled(true) in " + this.getClass().getSimpleName(), e);
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}
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}
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if((previousSelection!=null && selection!=null) && (activePart != null && selectionProvidingPart != null && activePart.equals(selectionProvidingPart)) &&
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(previousSelection==selection
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|| previousSelection.equals(selection)
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|| new StructuredSelection(selection).equals(previousSelection))
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) {
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return;
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}
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if(delaySelection==null){
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delaySelection = new DelaySelection(selection, activePart, thisPart);
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}
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delaySelection.setSelection(selection);
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delaySelection.setActivePart(activePart);
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delaySelection.setThisPart(thisPart);
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if(!isInDelay){
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isInDelay = true;
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sync.asyncExec(delaySelection);
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previousSelection = selection;
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}
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}
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@Override
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public void changed(Object object) {
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if(selectionProvidingPart!=null){
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Object part = selectionProvidingPart.getObject();
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if(part instanceof IDirtyMarkable){
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((IDirtyMarkable) part).changed(object);
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}
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}
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}
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public Viewer getViewer() {
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return viewer;
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}
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public boolean isEnabled() {
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return isEnabled;
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}
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public void setEnabled(boolean isEnabled) {
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this.isEnabled = isEnabled;
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}
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protected void showViewer(IStructuredSelection selection, MPart activePart, Viewer viewer){
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if(CdmStore.getCurrentSessionManager().getActiveSession()==null){
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return;
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}
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if(viewer!=null && viewer.getControl()!=null && !viewer.getControl().isDisposed()){
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Object element = selection.getFirstElement();
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Object part = createPartObject(activePart);
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if (viewer.getControl().isDisposed()){
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return;
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}
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viewer.getControl().setEnabled(true);
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if(selection.getFirstElement()!=null){
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if (element instanceof Taxon){
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Taxon taxon = HibernateProxyHelper.deproxy(element, Taxon.class);
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if (part instanceof ITaxonEditor){
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TaxonNode node = ((ITaxonEditor) part).getTaxonNode();
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if (node != null){
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boolean doEnable = CdmStore.currentAuthentiationHasPermission(node,
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RequiredPermissions.TAXON_EDIT);
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if (!doEnable){
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//check whether there are explicit TaxonNode rights
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boolean taxonnodePermissionExists = false;
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Collection<? extends GrantedAuthority> authorities = CdmStore.getCurrentAuthentiation().getAuthorities();
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for (GrantedAuthority grantedAuthority: authorities){
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if (grantedAuthority.getAuthority().startsWith("TAXONNODE")){
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taxonnodePermissionExists = true;
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}
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}
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if (!taxonnodePermissionExists){
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doEnable = true;
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}
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}
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//TODO: differ between the views
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this.isEnabled = doEnable;
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}
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}
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if (taxon.isMisapplication() || taxon.isProparteSynonym() || taxon.isInvalidDesignation()){
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if(part instanceof ITaxonEditor){
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Taxon accepted = ((ITaxonEditor) part).getTaxon();
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Set<TaxonRelationship> rels = taxon.getTaxonRelations(accepted);
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if (rels != null && rels.iterator().hasNext() && !taxon.equals(accepted)){
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TaxonRelationship rel = rels.iterator().next();
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if ((rel.getType().isMisappliedNameOrInvalidDesignation() || rel.getType().isAnySynonym()) && !rel.getFromTaxon().equals(((ITaxonEditor) part).getTaxon())){
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viewer.setInput(rel);
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selectionProvidingPart = activePart;
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return;
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}
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}
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}
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}
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}
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//unwrap term DTOs
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if(element instanceof TermDto){
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element = CdmStore.getService(ITermService.class).load(((TermDto) element).getUuid());
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}
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else if(element instanceof TermVocabularyDto){
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element = CdmStore.getService(IVocabularyService.class).load(((TermVocabularyDto) element).getUuid());
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}
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selectionProvidingPart = activePart;
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if (viewer instanceof DetailsViewerE4){
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if (selectionProvidingPart.getElementId().equals("eu.etaxonomy.taxeditor.editor.view.checklist.e4.DistributionEditorPart")){
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((DetailsViewerE4)viewer).setDetailsEnabled(false);
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}else{
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((DetailsViewerE4)viewer).setDetailsEnabled(isEnabled);
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}
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((DetailsViewerE4)viewer).setInput(element, part);
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}
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else{
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if (activePart.getObject() instanceof DetailsPartE4 && element instanceof TaxonName){
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selectionProvidingPart = ((DetailsPartE4)activePart.getObject()).getSelectionProvidingPart();
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}
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viewer.setInput(element);
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viewer.getControl().setEnabled(isEnabled);
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}
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}
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}
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}
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protected Object createPartObject(MPart activePart) {
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Object partObject = activePart;
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Object wrappedPart = WorkbenchUtility.getE4WrappedPart(activePart);
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if(wrappedPart!=null){
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partObject = wrappedPart;
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}
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return partObject;
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}
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protected void showEmptyPage() {
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if(viewer!=null && viewer.getControl()!=null && !viewer.getControl().isDisposed() ){
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viewer.setInput(null);
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try{
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if (!viewer.getControl().isDisposed()){
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viewer.getControl().setEnabled(false);
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}
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}catch(SWTException e){
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if (PreferencesUtil.isShowUpWidgetIsDisposedMessages() && e.getMessage().equals("Widget is disposed")){
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MessagingUtils.errorDialog("Widget is disposed",
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null,
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MessagingUtils.WIDGET_IS_DISPOSED_MESSAGE,
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null,
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e,
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true);
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}
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}
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323
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}
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reset();
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if(thisPart!=null){
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thisPart.setLabel(getViewName());
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}
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}
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331
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protected IStructuredSelection createSelection(Object selection) {
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332
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if(selection==null){
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return null;
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}
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IStructuredSelection structuredSelection;
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if(!(selection instanceof IStructuredSelection)){
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structuredSelection = new StructuredSelection(selection);
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}
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else{
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structuredSelection = (IStructuredSelection) selection;
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}
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return structuredSelection;
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}
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345
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@Override
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346
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public ConversationHolder getConversationHolder() {
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347
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if(selectionProvidingPart != null && selectionProvidingPart instanceof IConversationEnabled) {
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return ((IConversationEnabled) selectionProvidingPart).getConversationHolder();
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}
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return null;
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}
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352
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@Override
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public boolean postOperation(Object objectAffectedByOperation) {
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changed(objectAffectedByOperation);
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return true;
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}
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358
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@Override
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public boolean onComplete() {
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viewer.refresh();
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return true;
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}
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364
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@Override
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public MPart getSelectionProvidingPart() {
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return selectionProvidingPart;
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}
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369
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@PreDestroy
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private void dispose() {
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}
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373
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private void reset(){
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previousSelection = null;
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selectionProvidingPart = null;
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delaySelection = null;
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context.deactivate();
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}
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380
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@PersistState
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382
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private void persistState(){
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383
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384
|
}
|
|
385
|
|
|
386
|
@Override
|
|
387
|
public void update(CdmDataChangeMap arg0) {
|
|
388
|
}
|
|
389
|
|
|
390
|
@Override
|
|
391
|
public void forceDirty() {
|
|
392
|
}
|
|
393
|
|
|
394
|
protected abstract String getViewName();
|
|
395
|
|
|
396
|
}
|