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/**
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* Copyright (C) 2007 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.view.media.e4;
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import javax.annotation.PostConstruct;
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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.jface.viewers.AbstractTreeViewer;
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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.TreeNode;
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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.widgets.Composite;
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import org.eclipse.swt.widgets.Tree;
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import eu.etaxonomy.cdm.model.description.IDescribable;
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import eu.etaxonomy.taxeditor.editor.MultiPageTaxonEditor;
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import eu.etaxonomy.taxeditor.editor.l10n.Messages;
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import eu.etaxonomy.taxeditor.editor.view.concept.e4.ConceptViewPartE4;
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import eu.etaxonomy.taxeditor.editor.view.descriptive.e4.FactualDataPartE4;
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import eu.etaxonomy.taxeditor.editor.view.media.MediaContentProvider;
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import eu.etaxonomy.taxeditor.editor.view.media.MediaLabelProvider;
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import eu.etaxonomy.taxeditor.model.AbstractUtility;
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import eu.etaxonomy.taxeditor.model.IPartContentHasDetails;
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import eu.etaxonomy.taxeditor.model.IPartContentHasMedia;
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import eu.etaxonomy.taxeditor.model.IPartContentHasSupplementalData;
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import eu.etaxonomy.taxeditor.view.e4.AbstractCdmEditorPartE4;
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import eu.etaxonomy.taxeditor.view.e4.details.DetailsPartE4;
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import eu.etaxonomy.taxeditor.view.e4.supplementaldata.SupplementalDataPartE4;
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/**
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*
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* @author pplitzner
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* @since Aug 14, 2017
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*
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*/
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public class MediaViewPartE4 extends AbstractCdmEditorPartE4
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implements IPartContentHasDetails, IPartContentHasSupplementalData {
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@PostConstruct
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public void create(Composite parent, EMenuService menuService) {
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TreeViewer treeViewer = new TreeViewer(new Tree(parent, SWT.H_SCROLL
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| SWT.V_SCROLL | SWT.FULL_SELECTION));
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treeViewer.setContentProvider(new MediaContentProvider());
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treeViewer.setLabelProvider(new MediaLabelProvider());
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treeViewer.setAutoExpandLevel(2);
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viewer = treeViewer;
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// Propagate selection from viewer
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selectionChangedListener = (event -> selService.setSelection(AbstractUtility.getElementsFromSelectionChangedEvent(event)));
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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.editor.popupmenu.mediaview");
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}
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@Override
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public void selectionChanged_internal(Object selection, MPart activePart, MPart thisPart) {
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if(activePart==thisPart){
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return;
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}
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Object partObject = createPartObject(activePart);
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if (partObject instanceof DetailsPartE4 || partObject instanceof SupplementalDataPartE4
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|| partObject instanceof FactualDataPartE4 || partObject instanceof ConceptViewPartE4) {
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// do not show empty page as these views are also used to edit the
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// description selected in this view
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return;
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}
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if(partObject instanceof IPartContentHasMedia && ((IPartContentHasMedia) partObject).canAttachMedia()){
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IStructuredSelection structuredSelection = createSelection(selection);
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if(structuredSelection==null || structuredSelection.isEmpty()){
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showEmptyPage();
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return;
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}
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Object firstElement = structuredSelection.getFirstElement();
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if (partObject instanceof MultiPageTaxonEditor){
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if (firstElement != ((MultiPageTaxonEditor)partObject).getTaxon()){
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showEmptyPage();
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return;
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}
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}
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if(firstElement instanceof TreeNode){
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showViewer(new StructuredSelection(((TreeNode) firstElement).getValue()), activePart, viewer);
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return;
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}
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else if(firstElement!=null
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&& firstElement instanceof IDescribable<?>){
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showViewer(structuredSelection, activePart, viewer);
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return;
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}
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}
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showEmptyPage();
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return;
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}
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/** {@inheritDoc} */
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@Override
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public void changed(Object object) {
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((AbstractTreeViewer) viewer).expandToLevel(2);
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viewer.refresh();
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if(object != null){
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StructuredSelection selection = new StructuredSelection(object);
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viewer.setSelection(selection, true);
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}
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super.changed(object);
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}
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@Override
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protected String getViewName() {
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return Messages.MediaViewPart_MEDIA;
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}
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}
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