eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/descriptiveDataSet/DescriptiveDataSetNavigator.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2017 EDIT
   4 * European Distributed Institute of Taxonomy
   5 * http://www.e-taxonomy.eu
   6 *
   7 * The contents of this file are subject to the Mozilla Public License Version 1.1
   8 * See LICENSE.TXT at the top of this package for the full license terms.
   9 */
  10 package eu.etaxonomy.taxeditor.editor.descriptiveDataSet;
  11
  12 import java.util.Collection;
  13 import java.util.List;
  14 import java.util.Map;
  15
  16 import javax.annotation.PostConstruct;
  17 import javax.annotation.PreDestroy;
  18 import javax.inject.Inject;
  19
  20 import org.eclipse.core.runtime.IProgressMonitor;
  21 import org.eclipse.e4.ui.di.Focus;
  22 import org.eclipse.e4.ui.model.application.MApplication;
  23 import org.eclipse.e4.ui.services.EMenuService;
  24 import org.eclipse.e4.ui.workbench.modeling.EModelService;
  25 import org.eclipse.e4.ui.workbench.modeling.EPartService;
  26 import org.eclipse.e4.ui.workbench.modeling.ESelectionService;
  27 import org.eclipse.jface.viewers.ArrayContentProvider;
  28 import org.eclipse.jface.viewers.DoubleClickEvent;
  29 import org.eclipse.jface.viewers.IDoubleClickListener;
  30 import org.eclipse.jface.viewers.ISelection;
  31 import org.eclipse.jface.viewers.ISelectionChangedListener;
  32 import org.eclipse.jface.viewers.IStructuredSelection;
  33 import org.eclipse.jface.viewers.LabelProvider;
  34 import org.eclipse.jface.viewers.ListViewer;
  35 import org.eclipse.swt.widgets.Composite;
  36 import org.eclipse.ui.IMemento;
  37
  38 import eu.etaxonomy.cdm.api.conversation.ConversationHolder;
  39 import eu.etaxonomy.cdm.api.conversation.IConversationEnabled;
  40 import eu.etaxonomy.cdm.api.service.IDescriptiveDataSetService;
  41 import eu.etaxonomy.cdm.model.common.CdmBase;
  42 import eu.etaxonomy.cdm.model.description.DescriptiveDataSet;
  43 import eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeMap;
  44 import eu.etaxonomy.taxeditor.editor.EditorUtil;
  45 import eu.etaxonomy.taxeditor.model.IContextListener;
  46 import eu.etaxonomy.taxeditor.session.ICdmEntitySession;
  47 import eu.etaxonomy.taxeditor.session.ICdmEntitySessionEnabled;
  48 import eu.etaxonomy.taxeditor.store.CdmStore;
  49
  50 /**
  51  * @author pplitzner
  52  * @date 12.12.2017
  53  *
  54  */
  55 public class DescriptiveDataSetNavigator implements IConversationEnabled, ICdmEntitySessionEnabled, IContextListener{
  56
  57     private ListViewer viewer;
  58
  59     @Inject
  60     private ESelectionService selService;
  61
  62     private ISelectionChangedListener selectionChangedListener;
  63
  64     private ConversationHolder conversation;
  65
  66     private ICdmEntitySession cdmEntitySession;
  67
  68     private List<DescriptiveDataSet> descriptiveDataSets;
  69
  70     public DescriptiveDataSetNavigator() {
  71         CdmStore.getContextManager().addContextListener(this);
  72     }
  73
  74     @PostConstruct
  75     public void create(Composite parent, EPartService partService, EModelService modelService, MApplication application,
  76             EMenuService menuService){
  77         viewer = new ListViewer(parent);
  78         viewer.setContentProvider(new ArrayContentProvider());
  79         viewer.setLabelProvider(new LabelProvider(){
  80             /**
  81              * {@inheritDoc}
  82              */
  83             @Override
  84             public String getText(Object element) {
  85                 if(element instanceof DescriptiveDataSet){
  86                     return ((DescriptiveDataSet) element).getLabel();
  87                 }
  88                 return super.getText(element);
  89             }
  90         });
  91
  92         viewer.addDoubleClickListener(new IDoubleClickListener() {
  93
  94             @Override
  95             public void doubleClick(DoubleClickEvent event) {
  96                 ISelection selection = event.getSelection();
  97                 if(selection instanceof IStructuredSelection){
  98                         DescriptiveDataSet descriptiveDataSetUuid = (DescriptiveDataSet) ((IStructuredSelection) selection).getFirstElement();
  99                         if(descriptiveDataSetUuid!=null){
 100                             EditorUtil.openDescriptiveDataSetEditor(descriptiveDataSetUuid.getUuid(), modelService, partService, application);
 101                         }
 102                 }
 103             }
 104         });
 105
 106         //propagate selection
 107        selectionChangedListener = (event -> selService.setSelection(event.getSelection()));
 108        viewer.addSelectionChangedListener(selectionChangedListener);
 109
 110         //create context menu
 111         menuService.registerContextMenu(viewer.getControl(), "eu.etaxonomy.taxeditor.editor.popupmenu.descriptiveDataSetNavigator"); //$NON-NLS-1$
 112
 113         init();
 114     }
 115
 116     public void init(){
 117         if (CdmStore.isActive()){
 118             if(conversation == null) {
 119                 conversation = CdmStore.createConversation();
 120             }
 121             if(cdmEntitySession == null){
 122                 cdmEntitySession = CdmStore.getCurrentSessionManager().newSession(this, true);
 123             }
 124             descriptiveDataSets = CdmStore.getService(IDescriptiveDataSetService.class).list(DescriptiveDataSet.class, null, null, null, null);
 125             viewer.setInput(descriptiveDataSets);
 126         }
 127     }
 128
 129     public void addDescriptiveDataSet(DescriptiveDataSet descriptiveDataSetSet){
 130         descriptiveDataSets.add(descriptiveDataSetSet);
 131         refresh();
 132     }
 133
 134     public void removeDescriptiveDataSet(DescriptiveDataSet descriptiveDataSetSet){
 135         descriptiveDataSets.remove(descriptiveDataSetSet);
 136         refresh();
 137     }
 138
 139     public void refresh(){
 140         refresh(false);
 141     }
 142
 143     public void refresh(boolean reloadDescriptiveDataSets){
 144         if(reloadDescriptiveDataSets){
 145             cdmEntitySession.dispose();
 146             cdmEntitySession = CdmStore.getCurrentSessionManager().newSession(this, true);
 147             IDescriptiveDataSetService service = CdmStore.getService(IDescriptiveDataSetService.class);
 148             descriptiveDataSets = service.list(DescriptiveDataSet.class, null, null, null, null);
 149         }
 150         viewer.setInput(descriptiveDataSets);
 151         viewer.refresh();
 152     }
 153
 154     /**
 155      * {@inheritDoc}
 156      */
 157     @Override
 158     public void update(CdmDataChangeMap arg0) {
 159     }
 160
 161     /**
 162      * {@inheritDoc}
 163      */
 164     @Override
 165     public ICdmEntitySession getCdmEntitySession() {
 166         return cdmEntitySession;
 167     }
 168
 169     /**
 170      * {@inheritDoc}
 171      */
 172     @Override
 173     public <T extends CdmBase> Collection<T> getRootEntities() {
 174         return null;
 175     }
 176
 177     /**
 178      * {@inheritDoc}
 179      */
 180     @Override
 181     public Map<Object, List<String>> getPropertyPathsMap() {
 182         return null;
 183     }
 184
 185     /**
 186      * {@inheritDoc}
 187      */
 188     @Override
 189     public ConversationHolder getConversationHolder() {
 190         return conversation;
 191     }
 192
 193     /** {@inheritDoc} */
 194     @PreDestroy
 195     public void dispose() {
 196         if (conversation != null) {
 197             conversation.close();
 198             conversation = null;
 199         }
 200         if(cdmEntitySession != null) {
 201             cdmEntitySession.dispose();
 202             cdmEntitySession = null;
 203         }
 204     }
 205
 206     /** {@inheritDoc} */
 207     @Focus
 208     public void setFocus() {
 209         if (getConversationHolder() != null) {
 210             getConversationHolder().bind();
 211         }
 212         if(cdmEntitySession != null) {
 213             cdmEntitySession.bind();
 214         }
 215     }
 216
 217     /**
 218      * {@inheritDoc}
 219      */
 220     @Override
 221     public void contextAboutToStop(IMemento memento, IProgressMonitor monitor) {
 222         // TODO Auto-generated method stub
 223
 224     }
 225
 226     /**
 227      * {@inheritDoc}
 228      */
 229     @Override
 230     public void contextStop(IMemento memento, IProgressMonitor monitor) {
 231     }
 232
 233     /**
 234      * {@inheritDoc}
 235      */
 236     @Override
 237     public void contextStart(IMemento memento, IProgressMonitor monitor) {
 238         if(viewer!=null && viewer.getControl()!=null && !viewer.getControl().isDisposed()){
 239             init();
 240         }
 241     }
 242
 243     /**
 244      * {@inheritDoc}
 245      */
 246     @Override
 247     public void contextRefresh(IProgressMonitor monitor) {
 248     }
 249
 250     /**
 251      * {@inheritDoc}
 252      */
 253     @Override
 254     public void workbenchShutdown(IMemento memento, IProgressMonitor monitor) {
 255     }
 256
 257 }