eu.etaxonomy.taxeditor.navigation/src/main/java/eu/etaxonomy/taxeditor/navigation/key/polytomous/PolytomousKeyViewPart.java

   1 /**
   2  *
   3  */
   4 package eu.etaxonomy.taxeditor.navigation.key.polytomous;
   5
   6 import java.util.List;
   7 import java.util.Map;
   8
   9 import org.eclipse.core.commands.Command;
  10 import org.eclipse.core.commands.common.NotDefinedException;
  11 import org.eclipse.core.runtime.IProgressMonitor;
  12 import org.eclipse.jface.action.GroupMarker;
  13 import org.eclipse.jface.action.MenuManager;
  14 import org.eclipse.jface.viewers.DoubleClickEvent;
  15 import org.eclipse.jface.viewers.IDoubleClickListener;
  16 import org.eclipse.jface.viewers.ISelection;
  17 import org.eclipse.jface.viewers.ListViewer;
  18 import org.eclipse.jface.viewers.Viewer;
  19 import org.eclipse.jface.viewers.ViewerFilter;
  20 import org.eclipse.swt.SWT;
  21 import org.eclipse.swt.events.ModifyEvent;
  22 import org.eclipse.swt.events.ModifyListener;
  23 import org.eclipse.swt.layout.GridData;
  24 import org.eclipse.swt.layout.GridLayout;
  25 import org.eclipse.swt.widgets.Composite;
  26 import org.eclipse.swt.widgets.Control;
  27 import org.eclipse.swt.widgets.Display;
  28 import org.eclipse.swt.widgets.Event;
  29 import org.eclipse.swt.widgets.Menu;
  30 import org.eclipse.swt.widgets.Text;
  31 import org.eclipse.ui.IMemento;
  32 import org.eclipse.ui.IWorkbenchActionConstants;
  33 import org.eclipse.ui.commands.ICommandService;
  34 import org.eclipse.ui.handlers.IHandlerService;
  35 import org.eclipse.ui.part.ViewPart;
  36
  37 import eu.etaxonomy.cdm.api.application.CdmApplicationState;
  38 import eu.etaxonomy.cdm.api.application.CdmChangeEvent;
  39 import eu.etaxonomy.cdm.api.application.CdmChangeEvent.Action;
  40 import eu.etaxonomy.cdm.api.application.ICdmChangeListener;
  41 import eu.etaxonomy.cdm.api.conversation.ConversationHolder;
  42 import eu.etaxonomy.cdm.api.conversation.IConversationEnabled;
  43 import eu.etaxonomy.cdm.api.service.IPolytomousKeyService;
  44 import eu.etaxonomy.cdm.model.common.CdmBase;
  45 import eu.etaxonomy.cdm.model.description.PolytomousKey;
  46 import eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeMap;
  47 import eu.etaxonomy.taxeditor.model.ContextListenerAdapter;
  48 import eu.etaxonomy.taxeditor.model.DataChangeBridge;
  49 import eu.etaxonomy.taxeditor.model.IContextListener;
  50 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  51 import eu.etaxonomy.taxeditor.operation.IPostOperationEnabled;
  52 import eu.etaxonomy.taxeditor.session.ICdmEntitySession;
  53 import eu.etaxonomy.taxeditor.session.ICdmEntitySessionEnabled;
  54 import eu.etaxonomy.taxeditor.store.CdmStore;
  55 import eu.etaxonomy.taxeditor.ui.element.CdmFormFactory;
  56
  57 /**
  58  * @author n.hoffmann
  59  *
  60  */
  61 public class PolytomousKeyViewPart extends ViewPart implements
  62                 IConversationEnabled, ICdmEntitySessionEnabled, IPostOperationEnabled,
  63                 ICdmChangeListener {
  64
  65         private class FilterModifyListener implements ModifyListener{
  66                 @Override
  67                 public void modifyText(ModifyEvent e) {
  68                         ViewerFilter filter = new ViewerFilter(){
  69
  70                                 @Override
  71                                 public boolean select(Viewer viewer, Object parentElement,
  72                                                 Object element) {
  73
  74                                         if(element instanceof PolytomousKey){
  75                                                 PolytomousKey key = (PolytomousKey) element;
  76                                                 if(key.getTitleCache().contains(text_filter.getText())){
  77                                                         return true;
  78                                                 }
  79                                         }
  80
  81                                         return false;
  82                                 }
  83
  84                         };
  85
  86                         viewer.setFilters(new ViewerFilter[]{filter});
  87                 }
  88         }
  89
  90
  91         public static final String ID = "eu.etaxonomy.taxeditor.navigation.key.polytomous.polytomousKeyViewPart";
  92
  93         public static final String OPEN_COMMAND_ID = "eu.etaxonomy.taxeditor.navigation.key.polytomous.editNodes";
  94
  95         private class ContextListener extends ContextListenerAdapter{
  96                 /* (non-Javadoc)
  97                  * @see eu.etaxonomy.taxeditor.model.IContextListener#contextStop(org.eclipse.ui.IMemento, org.eclipse.core.runtime.IProgressMonitor)
  98                  */
  99                 @Override
 100                 public void contextStop(IMemento memento, IProgressMonitor monitor) {
 101                         monitor.subTask("Shutting down Polytomous Key Viewer");
 102                         if(!viewer.getControl().isDisposed()){
 103                             viewer.setInput(null);
 104                         }
 105                 }
 106
 107                 /* (non-Javadoc)
 108                  * @see eu.etaxonomy.taxeditor.model.ContextListenerAdapter#contextStart(org.eclipse.ui.IMemento, org.eclipse.core.runtime.IProgressMonitor)
 109                  */
 110                 @Override
 111                 public void contextStart(IMemento memento, IProgressMonitor monitor) {
 112                         monitor.subTask("Initiating Polytomous Key Viewer");
 113                         setInput();
 114                 }
 115         }
 116
 117         private ListViewer viewer;
 118         private ConversationHolder conversation;
 119         private IContextListener contextListener;
 120         private final CdmFormFactory formFactory;
 121         private Text text_filter;
 122         private ICdmEntitySession cdmEntitySession;
 123
 124         private PolytomousKeyViewPartDataChangeBehavior dataChangeBehavior;
 125
 126         public PolytomousKeyViewPart(){
 127                 formFactory = new CdmFormFactory(Display.getDefault());
 128         }
 129
 130         /* (non-Javadoc)
 131          * @see org.eclipse.ui.part.WorkbenchPart#createPartControl(org.eclipse.swt.widgets.Composite)
 132          */
 133         @Override
 134         public void createPartControl(Composite parent) {
 135
 136                 Composite container = new Composite(parent, SWT.NONE);
 137                 container.setLayout(new GridLayout());
 138
 139                 contextListener = new ContextListener();
 140                 CdmStore.getContextManager().addContextListener(contextListener);
 141
 142                 text_filter = formFactory.createText(container, "");
 143                 text_filter.setLayoutData(new GridData(SWT.FILL, SWT.TOP, true, false));
 144                 text_filter.addModifyListener(new FilterModifyListener());
 145
 146                 viewer = new ListViewer(container, SWT.H_SCROLL | SWT.V_SCROLL | SWT.MULTI);
 147                 viewer.getControl().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
 148
 149                 viewer.setContentProvider(new PolytomousKeyContentProvider());
 150                 viewer.setLabelProvider(new PolytomousKeyLabelProvider());
 151
 152                 viewer.addDoubleClickListener(new IDoubleClickListener() {
 153
 154                         @Override
 155                         public void doubleClick(DoubleClickEvent event) {
 156                             openSelectedKeyNodes();
 157                         }
 158                 });
 159
 160
 161                 getSite().setSelectionProvider(viewer);
 162
 163                 createMenu();
 164
 165                 if(CdmStore.isActive()){
 166                         setInput();
 167                 }
 168         }
 169
 170         public void openSelectedKeyNodes() {
 171         ICommandService commandService = (ICommandService)getSite().getService(ICommandService.class);
 172
 173         Command command = commandService.getCommand(OPEN_COMMAND_ID);
 174         if(command.isEnabled()) {
 175             IHandlerService handlerService = (IHandlerService)getSite().getService(IHandlerService.class);
 176             try {
 177                 handlerService.executeCommand(OPEN_COMMAND_ID, null);
 178             } catch (NotDefinedException e) {
 179                 throw new RuntimeException("Could not find open command: " + OPEN_COMMAND_ID);
 180             } catch (Exception e) {
 181                 MessagingUtils.error(getClass(), "An exception occured while trying to open a selection", e);
 182             }
 183         }
 184         }
 185
 186         public void setViewerSelection(ISelection selection, boolean reveal) {
 187             getSite().setSelectionProvider(viewer);
 188             viewer.setSelection(selection,reveal);
 189             viewer.getList().notifyListeners(SWT.Selection,new Event());
 190         }
 191
 192         private void createMenu(){
 193                 MenuManager menuManager = new MenuManager();
 194                 menuManager.add(new GroupMarker(IWorkbenchActionConstants.MB_ADDITIONS));
 195
 196                 getSite().registerContextMenu(menuManager, viewer);
 197
 198                 Control control = viewer.getControl();
 199                 Menu menu = menuManager.createContextMenu(control);
 200
 201                 control.setMenu(menu);
 202         }
 203
 204         private void setInput() {
 205                 conversation = CdmStore.createConversation();
 206                 conversation.registerForDataStoreChanges(this);
 207                 cdmEntitySession = CdmStore.getCurrentSessionManager().newSession(this, true);
 208                 CdmApplicationState.getCurrentDataChangeService().register(this);
 209
 210                 List<PolytomousKey> input = CdmStore.getService(IPolytomousKeyService.class).list(PolytomousKey.class, null, null, null, null);
 211                 if(!viewer.getControl().isDisposed()){
 212                     viewer.setInput(input);
 213                 }
 214         }
 215
 216         /* (non-Javadoc)
 217          * @see org.eclipse.ui.part.WorkbenchPart#setFocus()
 218          */
 219         @Override
 220         public void setFocus() {
 221             if(cdmEntitySession != null) {
 222             cdmEntitySession.bind();
 223         }
 224                 viewer.getControl().setFocus();
 225         }
 226
 227         /* (non-Javadoc)
 228          * @see eu.etaxonomy.cdm.persistence.hibernate.ICdmPostDataChangeObserver#update(eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeMap)
 229          */
 230         @Override
 231         public void update(CdmDataChangeMap changeEvents) {
 232                 if (dataChangeBehavior == null) {
 233                         dataChangeBehavior = new PolytomousKeyViewPartDataChangeBehavior(this);
 234                 }
 235
 236                 DataChangeBridge.handleDataChange(changeEvents, dataChangeBehavior);
 237         }
 238
 239         /* (non-Javadoc)
 240          * @see eu.etaxonomy.cdm.api.conversation.IConversationEnabled#getConversationHolder()
 241          */
 242         @Override
 243         public ConversationHolder getConversationHolder() {
 244                 return conversation;
 245         }
 246
 247         /* (non-Javadoc)
 248          * @see org.eclipse.ui.part.WorkbenchPart#dispose()
 249          */
 250         @Override
 251         public void dispose() {
 252             if(conversation!=null){
 253                 conversation.unregisterForDataStoreChanges(this);
 254                 conversation.close();
 255                 CdmStore.getContextManager().removeContextListener(contextListener);
 256             }
 257             if(cdmEntitySession != null) {
 258                 cdmEntitySession.dispose();
 259             }
 260             CdmApplicationState.getCurrentDataChangeService().unregister(this);
 261                 super.dispose();
 262         }
 263
 264         /* (non-Javadoc)
 265          * @see eu.etaxonomy.taxeditor.operation.IPostOperationEnabled#postOperation(eu.etaxonomy.cdm.model.common.CdmBase)
 266          */
 267         @Override
 268         public boolean postOperation(CdmBase objectAffectedByOperation) {
 269                 getConversationHolder().bind();
 270                 getConversationHolder().commit(true);
 271                 viewer.refresh();
 272                 return true;
 273         }
 274
 275         /* (non-Javadoc)
 276          * @see eu.etaxonomy.taxeditor.operation.IPostOperationEnabled#onComplete()
 277          */
 278         @Override
 279         public boolean onComplete() {
 280                 return true;
 281         }
 282
 283         /**
 284          *
 285          */
 286         public void refresh() {
 287                 getConversationHolder().bind();
 288                 //FIXME : Need to make sure this is a stable fix (ticket 3822)
 289                 getConversationHolder().commit();
 290                 List<PolytomousKey> input = CdmStore.getService(IPolytomousKeyService.class).list(PolytomousKey.class, null, null, null, null);
 291                 if(!viewer.getControl().isDisposed()){
 292                     viewer.setInput(input);
 293                 }
 294         }
 295
 296         public List<PolytomousKey> getKeys() {
 297                 return (List<PolytomousKey>)viewer.getInput();
 298         }
 299
 300     /* (non-Javadoc)
 301      * @see eu.etaxonomy.taxeditor.session.ICdmEntitySessionEnabled#getCdmEntitySession()
 302      */
 303     @Override
 304     public ICdmEntitySession getCdmEntitySession() {
 305         return cdmEntitySession;
 306     }
 307
 308     /* (non-Javadoc)
 309      * @see eu.etaxonomy.taxeditor.session.ICdmEntitySessionEnabled#getRootEntities()
 310      */
 311     @Override
 312     public  List<PolytomousKey> getRootEntities() {
 313         return getKeys();
 314     }
 315
 316     /* (non-Javadoc)
 317      * @see eu.etaxonomy.cdm.api.application.ICdmChangeListener#onChange(eu.etaxonomy.cdm.api.application.CdmChangeEvent)
 318      */
 319     @Override
 320     public void onChange(CdmChangeEvent event) {
 321         if(event.getAction() == Action.Delete && PolytomousKey.class.equals(event.getEntityType())) {
 322             refresh();
 323         }
 324
 325     }
 326
 327     /* (non-Javadoc)
 328      * @see eu.etaxonomy.taxeditor.session.ICdmEntitySessionEnabled#getPropertyPathsMap()
 329      */
 330     @Override
 331     public Map<Object, List<String>> getPropertyPathsMap() {
 332         // TODO Auto-generated method stub
 333         return null;
 334     }
 335
 336 }