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/**
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* Copyright (C) 2009 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.editor.definedterm.e4;
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import java.util.HashSet;
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import java.util.Set;
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import javax.annotation.PostConstruct;
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import javax.annotation.PreDestroy;
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import javax.inject.Inject;
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import org.eclipse.core.runtime.IProgressMonitor;
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import org.eclipse.e4.core.contexts.ContextInjectionFactory;
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import org.eclipse.e4.core.contexts.IEclipseContext;
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import org.eclipse.e4.ui.di.Focus;
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import org.eclipse.e4.ui.di.Persist;
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import org.eclipse.e4.ui.model.application.ui.MDirtyable;
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import org.eclipse.e4.ui.model.application.ui.basic.MPart;
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import org.eclipse.e4.ui.services.EMenuService;
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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.dialogs.MessageDialog;
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import org.eclipse.jface.util.LocalSelectionTransfer;
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import org.eclipse.jface.viewers.ISelectionChangedListener;
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import org.eclipse.jface.viewers.StructuredSelection;
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import org.eclipse.jface.viewers.TreeViewer;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.dnd.DND;
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import org.eclipse.swt.dnd.Transfer;
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import org.eclipse.swt.layout.FillLayout;
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import org.eclipse.swt.widgets.Composite;
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import org.eclipse.swt.widgets.Tree;
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import org.eclipse.ui.IMemento;
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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.model.common.DefinedTermBase;
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import eu.etaxonomy.cdm.model.common.TermBase;
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import eu.etaxonomy.cdm.model.common.TermVocabulary;
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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.definedterm.DefinedTermSorter;
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import eu.etaxonomy.taxeditor.editor.definedterm.TermDtoContentProvider;
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import eu.etaxonomy.taxeditor.editor.definedterm.TermDtoLabelProvider;
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import eu.etaxonomy.taxeditor.editor.definedterm.input.TermEditorInput;
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import eu.etaxonomy.taxeditor.event.EventUtility;
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import eu.etaxonomy.taxeditor.event.WorkbenchEventConstants;
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import eu.etaxonomy.taxeditor.l10n.Messages;
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import eu.etaxonomy.taxeditor.model.IContextListener;
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import eu.etaxonomy.taxeditor.model.IDirtyMarkable;
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import eu.etaxonomy.taxeditor.model.IPartContentHasDetails;
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import eu.etaxonomy.taxeditor.model.IPartContentHasSupplementalData;
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import eu.etaxonomy.taxeditor.operation.IPostOperationEnabled;
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import eu.etaxonomy.taxeditor.store.CdmStore;
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import eu.etaxonomy.taxeditor.ui.element.LayoutConstants;
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import eu.etaxonomy.taxeditor.workbench.part.IE4SavablePart;
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/**
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*
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* @author pplitzner
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* @since Aug 22, 2017
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*
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*/
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public class DefinedTermEditorE4 implements IConversationEnabled, IDirtyMarkable, IPostOperationEnabled,
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IPartContentHasDetails, IPartContentHasSupplementalData, IE4SavablePart, IContextListener {
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public static final String OPEN_COMMAND_ID = "eu.etaxonomy.taxeditor.store.openDefinedTermEditor"; //$NON-NLS-1$
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protected TreeViewer viewer;
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protected ConversationHolder conversation;
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@Inject
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private ESelectionService selService;
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@Inject
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private MDirtyable dirty;
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private ISelectionChangedListener selectionChangedListener;
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private final int dndOperations = DND.DROP_COPY | DND.DROP_MOVE;
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private TermEditorInput input =null;
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@Inject
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private MPart thisPart;
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private Set<TermBase> changedTerms = new HashSet<>();
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@Inject
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public DefinedTermEditorE4() {
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CdmStore.getContextManager().addContextListener(this);
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}
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@PostConstruct
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public void createPartControl(Composite parent, EMenuService menuService,
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IEclipseContext context) {
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if (CdmStore.isActive()){
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if(conversation == null){
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conversation = CdmStore.createConversation();
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}
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}
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else{
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return;
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}
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FillLayout layout = new FillLayout();
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layout.marginHeight = 0;
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layout.marginWidth = 0;
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layout.type = SWT.VERTICAL;
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parent.setLayout(layout);
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viewer = new TreeViewer(new Tree(parent, SWT.H_SCROLL | SWT.V_SCROLL | SWT.FULL_SELECTION | SWT.MULTI));
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viewer.getControl().setLayoutData(LayoutConstants.FILL());
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viewer.setContentProvider(new TermDtoContentProvider());
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viewer.setLabelProvider(new TermDtoLabelProvider());
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viewer.setComparator(new DefinedTermSorter());
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Transfer[] transfers = new Transfer[] { LocalSelectionTransfer.getTransfer() };
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viewer.addDragSupport(dndOperations, transfers, new DefinedTermDragListenerE4(viewer));
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DefinedTermDropAdapterE4 dropListener = new DefinedTermDropAdapterE4(this);
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ContextInjectionFactory.inject(dropListener, context);
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viewer.addDropSupport(dndOperations, transfers, dropListener);
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//propagate selection
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selectionChangedListener = (event -> selService.setSelection(event.getSelection()));
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viewer.addSelectionChangedListener(selectionChangedListener);
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//create context menu
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menuService.registerContextMenu(viewer.getControl(), "eu.etaxonomy.taxeditor.store.popupmenu.termeditor"); //$NON-NLS-1$
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}
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@Override
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public boolean postOperation(Object objectAffectedByOperation) {
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if(objectAffectedByOperation instanceof TermVocabulary){
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input.initialiseVocabularies();
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}
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viewer.refresh();
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if(objectAffectedByOperation != null){
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StructuredSelection selection = new StructuredSelection(objectAffectedByOperation);
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viewer.setSelection(selection);
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viewer.expandToLevel(objectAffectedByOperation, 1);
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}
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return true;
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}
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public void init(TermEditorInput input){
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this.input = input;
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input.initialiseVocabularies();
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viewer.setInput(input.getVocabularies());
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thisPart.setLabel(input.getName());
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}
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/**
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* Checks the dirty flag and, if set, prompts the user to optionally save
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* the editor
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*
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* @return <code>false</code> if the editor is not dirty anymore, either
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* because it wasn't beforehand or because it has been saved.
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* <code>true</code> otherwise
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*/
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public boolean checkDirty(){
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if (isDirty()){
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boolean proceed = MessageDialog.openQuestion(null,
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Messages.DefinedTermEditorE4_SAVE_TITLE, Messages.DefinedTermEditorE4_SAVE_MESSAGE);
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if (proceed) {
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save(null);
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return false;
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}
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else{
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return true;
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}
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}
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else{
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return false;
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}
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}
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@Override
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@Persist
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public void save(IProgressMonitor monitor) {
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getConversationHolder().commit();
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for(TermBase term:changedTerms){
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if(term.isInstanceOf(DefinedTermBase.class)){
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CdmStore.getService(ITermService.class).merge((DefinedTermBase) term);
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}
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else if(term.isInstanceOf(TermVocabulary.class)){
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CdmStore.getService(IVocabularyService.class).merge((TermVocabulary) term);
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}
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}
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changedTerms.clear();
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setDirty(false);
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input.initialiseVocabularies();
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viewer.refresh();
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EventUtility.postEvent(WorkbenchEventConstants.REFRESH_SUPPLEMENTAL, true);
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}
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public boolean isDirty() {
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return dirty.isDirty();
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}
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@Focus
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public void setFocus() {
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if(viewer!=null && viewer.getControl() != null && !viewer.getControl().isDisposed()){
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viewer.getControl().setFocus();
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}
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if(conversation!=null){
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conversation.bind();
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}
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if(input!=null){
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input.bind();
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}
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}
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@Override
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public void update(CdmDataChangeMap changeEvents) {
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}
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@Override
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public ConversationHolder getConversationHolder() {
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return conversation;
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}
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@Override
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public void changed(Object element) {
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if(element instanceof DefinedTermBase){
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DefinedTermBase definedTermBase = (DefinedTermBase) element;
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TermDto termDto = TermDto.fromTerm(definedTermBase);
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viewer.update(termDto, null);
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changedTerms.add(definedTermBase);
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}
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else if(element instanceof TermVocabulary){
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TermVocabulary vocabulary = (TermVocabulary)element;
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TermVocabularyDto vocabularyDto = new TermVocabularyDto(vocabulary.getUuid(), vocabulary.getRepresentations());
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viewer.update(vocabularyDto, null);
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changedTerms.add(vocabulary);
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}
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setDirty(true);
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viewer.update(element, null);
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}
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@Override
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public void forceDirty() {
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changed(null);
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}
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public void setDirty(boolean dirty) {
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this.dirty.setDirty(dirty);
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}
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@Override
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public boolean onComplete() {
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return false;
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}
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public TreeViewer getViewer() {
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return viewer;
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}
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@PreDestroy
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public void dispose() {
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if(conversation!=null){
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conversation.unregisterForDataStoreChanges(this);
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conversation.close();
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conversation = null;
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}
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if(input!=null){
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input.dispose();
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}
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this.dirty.setDirty(false);
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}
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public TermEditorInput getDefinedTermEditorInput() {
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return input;
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}
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@Override
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public void contextAboutToStop(IMemento memento, IProgressMonitor monitor) {
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}
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@Override
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public void contextStop(IMemento memento, IProgressMonitor monitor) {
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//close view when workbench closes
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try{
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thisPart.getContext().get(EPartService.class).hidePart(thisPart);
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}
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catch(Exception e){
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//nothing
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}
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}
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@Override
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public void contextStart(IMemento memento, IProgressMonitor monitor) {
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}
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@Override
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public void contextRefresh(IProgressMonitor monitor) {
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}
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@Override
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public void workbenchShutdown(IMemento memento, IProgressMonitor monitor) {
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}
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}
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