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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.featuretree.e4;
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import java.util.Arrays;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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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.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.util.LocalSelectionTransfer;
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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.SelectionChangedEvent;
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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.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.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.IFeatureTreeService;
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import eu.etaxonomy.cdm.model.description.FeatureNode;
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import eu.etaxonomy.cdm.model.description.FeatureTree;
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import eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeMap;
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import eu.etaxonomy.taxeditor.editor.definedterm.TermTransfer;
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import eu.etaxonomy.taxeditor.featuretree.FeatureNodeTransfer;
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import eu.etaxonomy.taxeditor.featuretree.FeatureTreeContentProvider;
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import eu.etaxonomy.taxeditor.featuretree.FeatureTreeLabelProvider;
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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.session.ICdmEntitySession;
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import eu.etaxonomy.taxeditor.store.CdmStore;
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import eu.etaxonomy.taxeditor.workbench.part.IE4ViewerPart;
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/**
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*
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* @author pplitzner
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* @date 06.06.2017
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*
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*/
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public class FeatureTreeEditor implements IFeatureTreeEditor, ISelectionChangedListener,
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IE4ViewerPart, IPartContentHasDetails, IPartContentHasSupplementalData,
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IContextListener, IConversationEnabled, IDirtyMarkable {
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private ConversationHolder conversation;
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private ICdmEntitySession cdmEntitySession;
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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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@Inject
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private MPart thisPart;
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private TreeViewer viewer;
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@Inject
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public FeatureTreeEditor() {
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CdmStore.getContextManager().addContextListener(this);
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}
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@PostConstruct
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public void createControl(Composite parent, EMenuService menuService){
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if (CdmStore.isActive()){
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initSession();
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}
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else{
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return;
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}
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parent.setLayout(new FillLayout());
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viewer = new TreeViewer(parent);
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viewer.setContentProvider(new FeatureTreeContentProvider());
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viewer.setLabelProvider(new FeatureTreeLabelProvider());
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int ops = DND.DROP_COPY | DND.DROP_MOVE;
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Transfer[] transfers = new Transfer[] {
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FeatureNodeTransfer.getInstance(),
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TermTransfer.getInstance(),
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LocalSelectionTransfer.getTransfer()};
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viewer.addDragSupport(ops, transfers, new FeatureNodeDragListener(viewer));
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viewer.addDropSupport(ops, transfers, new FeatureNodeDropAdapter(dirty, this, viewer));
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viewer.addSelectionChangedListener(this);
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List<FeatureTree> trees = CdmStore.getService(IFeatureTreeService.class).list(FeatureTree.class, null, null, null, null);
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viewer.setInput(trees);
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//create context menu
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menuService.registerContextMenu(viewer.getControl(), "eu.etaxonomy.taxeditor.store.popupmenu.featureTreeEditor");
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}
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private void initSession(){
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if(conversation == null){
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conversation = CdmStore.createConversation();
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}
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if(cdmEntitySession==null){
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cdmEntitySession = CdmStore.getCurrentSessionManager().newSession(this, true);
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}
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}
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private void clearSession() {
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if(conversation!=null){
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conversation.close();
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conversation = null;
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}
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if(cdmEntitySession != null) {
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cdmEntitySession.dispose();
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cdmEntitySession = null;
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}
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dirty.setDirty(false);
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}
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public void setDirty(boolean isDirty){
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this.dirty.setDirty(isDirty);
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}
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@Override
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public boolean isDirty(){
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return dirty.isDirty();
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}
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@Override
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public void selectionChanged(SelectionChangedEvent event) {
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//propagate selection
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selService.setSelection(event.getSelection());
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}
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@Focus
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public void focus(){
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if(viewer!=null){
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viewer.getControl().setFocus();
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}
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if(conversation!=null && !conversation.isBound()){
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conversation.bind();
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}
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if(cdmEntitySession != null) {
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cdmEntitySession.bind();
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}
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}
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@Override
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public void refresh(){
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viewer.refresh();
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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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@Override
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public IStructuredSelection getSelection() {
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return (IStructuredSelection) viewer.getSelection();
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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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@Persist
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public void save(IProgressMonitor monitor){
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if (!conversation.isBound()) {
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conversation.bind();
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}
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// commit the conversation and start a new transaction immediately
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conversation.commit(true);
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CdmStore.getService(IFeatureTreeService.class).saveOrUpdate(getRootEntities());
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initialiseRootEntities();
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this.setDirty(false);
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}
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private void initialiseRootEntities() {
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Object[] expandedElements = viewer.getExpandedElements();
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viewer.getTree().removeAll();
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List<FeatureTree> trees = CdmStore.getService(IFeatureTreeService.class).list(FeatureTree.class, null, null, null, null);
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viewer.setInput(trees);
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viewer.setExpandedElements(expandedElements);
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}
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@PreDestroy
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public void dispose(){
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selService.setSelection(null);
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clearSession();
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}
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@Override
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public ICdmEntitySession getCdmEntitySession() {
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return cdmEntitySession;
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}
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@Override
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public Map<Object, List<String>> getPropertyPathsMap() {
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List<String> propertyPaths = Arrays.asList(new String[] {
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"children", //$NON-NLS-1$
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"feature", //$NON-NLS-1$
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"featureTree", //$NON-NLS-1$
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});
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Map<Object, List<String>> propertyPathMap =
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new HashMap<Object, List<String>>();
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propertyPathMap.put(FeatureNode.class,propertyPaths);
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return propertyPathMap;
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}
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@Override
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public List<FeatureTree> getRootEntities() {
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return (List<FeatureTree>) viewer.getInput();
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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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@Override
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public void update(CdmDataChangeMap arg0) {
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}
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@Override
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public void changed(Object element) {
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dirty.setDirty(true);
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viewer.refresh();
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}
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@Override
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public void forceDirty() {
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dirty.setDirty(true);
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}
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@Override
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public boolean postOperation(Object objectAffectedByOperation) {
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initialiseRootEntities();
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viewer.refresh();
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if(objectAffectedByOperation instanceof FeatureNode){
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FeatureNode node = (FeatureNode)objectAffectedByOperation;
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viewer.expandToLevel(node.getFeatureTree(), 1);
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StructuredSelection selection = new StructuredSelection(objectAffectedByOperation);
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viewer.setSelection(selection);
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}
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return true;
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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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}
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