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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.handler;
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import javax.inject.Named;
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import org.eclipse.core.commands.operations.IUndoContext;
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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.core.di.annotations.Optional;
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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 eu.etaxonomy.cdm.model.common.DefinedTermBase;
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import eu.etaxonomy.cdm.model.common.Marker;
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import eu.etaxonomy.cdm.model.common.MarkerType;
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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.taxeditor.editor.definedterm.e4.DefinedTermEditorE4;
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import eu.etaxonomy.taxeditor.editor.definedterm.operation.CreateDefinedTermOperation;
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import eu.etaxonomy.taxeditor.model.AbstractUtility;
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import eu.etaxonomy.taxeditor.operation.AbstractPostOperation;
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import eu.etaxonomy.taxeditor.store.StoreUtil;
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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 CreateDefinedTermHandlerE4 {
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    @Execute
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    public void execute(@Named(IServiceConstants.ACTIVE_PART) MPart activePart,
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            @Optional@Named(IServiceConstants.ACTIVE_SELECTION) TermBase termBase, MHandledMenuItem menuItem) {
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        DefinedTermEditorE4 termEditor = (DefinedTermEditorE4) activePart.getObject();
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        boolean addTermAsKindOf =
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                menuItem.getCommand().getElementId().equals("eu.etaxonomy.taxeditor.editor.definedTerms.newKindOfTerm")?true:false;
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        String label = menuItem.getLocalizedLabel();
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        IUndoContext undoContext = StoreUtil.getUndoContext();
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        AbstractPostOperation operation =
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                new CreateDefinedTermOperation(label,
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                        undoContext,
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                        termBase,
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                        termEditor.getDefinedTermEditorInput(),
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                        termEditor, addTermAsKindOf);
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        AbstractUtility.executeOperation(operation);
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    }
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    @CanExecute
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    public boolean canExecute(@Named(IServiceConstants.ACTIVE_SELECTION) TermBase termBase){
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        if (termBase == null){
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            return true;
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        }
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        TermVocabulary vocabulary = null;
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        if(termBase instanceof DefinedTermBase){
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            vocabulary = ((DefinedTermBase) termBase).getVocabulary();
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        }else if(termBase instanceof TermVocabulary){
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            vocabulary = (TermVocabulary) termBase;
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        }
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        if(vocabulary == null){
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            return true;
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        }
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        for(Marker vocabularyMarker : vocabulary.getMarkers()){
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            if(vocabularyMarker.getMarkerType().equals(MarkerType.MODIFIABLE())){
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                return vocabularyMarker.getValue();
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            }
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        }
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        return true;
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    }
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}
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