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
   8 import org.eclipse.core.commands.Command;
   9 import org.eclipse.core.commands.common.NotDefinedException;
  10 import org.eclipse.core.runtime.IProgressMonitor;
  11 import org.eclipse.jface.action.GroupMarker;
  12 import org.eclipse.jface.action.MenuManager;
  13 import org.eclipse.jface.viewers.DoubleClickEvent;
  14 import org.eclipse.jface.viewers.IDoubleClickListener;
  15 import org.eclipse.jface.viewers.ListViewer;
  16 import org.eclipse.jface.viewers.Viewer;
  17 import org.eclipse.jface.viewers.ViewerFilter;
  18 import org.eclipse.swt.SWT;
  19 import org.eclipse.swt.events.ModifyEvent;
  20 import org.eclipse.swt.events.ModifyListener;
  21 import org.eclipse.swt.layout.GridData;
  22 import org.eclipse.swt.layout.GridLayout;
  23 import org.eclipse.swt.widgets.Composite;
  24 import org.eclipse.swt.widgets.Control;
  25 import org.eclipse.swt.widgets.Display;
  26 import org.eclipse.swt.widgets.Menu;
  27 import org.eclipse.swt.widgets.Text;
  28 import org.eclipse.ui.IMemento;
  29 import org.eclipse.ui.IWorkbenchActionConstants;
  30 import org.eclipse.ui.commands.ICommandService;
  31 import org.eclipse.ui.handlers.IHandlerService;
  32 import org.eclipse.ui.part.ViewPart;
  33
  34 import eu.etaxonomy.cdm.api.conversation.ConversationHolder;
  35 import eu.etaxonomy.cdm.api.conversation.IConversationEnabled;
  36 import eu.etaxonomy.cdm.api.service.IPolytomousKeyService;
  37 import eu.etaxonomy.cdm.model.common.CdmBase;
  38 import eu.etaxonomy.cdm.model.description.PolytomousKey;
  39 import eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeMap;
  40 import eu.etaxonomy.taxeditor.model.ContextListenerAdapter;
  41 import eu.etaxonomy.taxeditor.model.DataChangeBridge;
  42 import eu.etaxonomy.taxeditor.model.IContextListener;
  43 import eu.etaxonomy.taxeditor.navigation.NavigationUtil;
  44 import eu.etaxonomy.taxeditor.operation.IPostOperationEnabled;
  45 import eu.etaxonomy.taxeditor.store.CdmStore;
  46 import eu.etaxonomy.taxeditor.ui.element.CdmFormFactory;
  47
  48 /**
  49  * @author n.hoffmann
  50  *
  51  */
  52 public class PolytomousKeyViewPart extends ViewPart implements
  53                 IConversationEnabled, IPostOperationEnabled {
  54
  55         private class FilterModifyListener implements ModifyListener{
  56                 @Override
  57                 public void modifyText(ModifyEvent e) {
  58                         ViewerFilter filter = new ViewerFilter(){
  59
  60                                 @Override
  61                                 public boolean select(Viewer viewer, Object parentElement,
  62                                                 Object element) {
  63
  64                                         if(element instanceof PolytomousKey){
  65                                                 PolytomousKey key = (PolytomousKey) element;
  66                                                 if(key.getTitleCache().contains(text_filter.getText())){
  67                                                         return true;
  68                                                 }
  69                                         }
  70
  71                                         return false;
  72                                 }
  73
  74                         };
  75
  76                         viewer.setFilters(new ViewerFilter[]{filter});
  77                 }
  78         }
  79
  80
  81         public static final String ID = "eu.etaxonomy.taxeditor.navigation.key.polytomous.polytomousKeyViewPart";
  82
  83         public static final String OPEN_COMMAND_ID = "eu.etaxonomy.taxeditor.navigation.key.polytomous.edit";
  84
  85         private class ContextListener extends ContextListenerAdapter{
  86                 /* (non-Javadoc)
  87                  * @see eu.etaxonomy.taxeditor.model.IContextListener#contextStop(org.eclipse.ui.IMemento, org.eclipse.core.runtime.IProgressMonitor)
  88                  */
  89                 @Override
  90                 public void contextStop(IMemento memento, IProgressMonitor monitor) {
  91                         monitor.subTask("Shutting down Polytomous Key Viewer");
  92                         viewer.setInput(null);
  93                 }
  94
  95                 /* (non-Javadoc)
  96                  * @see eu.etaxonomy.taxeditor.model.ContextListenerAdapter#contextStart(org.eclipse.ui.IMemento, org.eclipse.core.runtime.IProgressMonitor)
  97                  */
  98                 @Override
  99                 public void contextStart(IMemento memento, IProgressMonitor monitor) {
 100                         monitor.subTask("Initiating Polytomous Key Viewer");
 101                         setInput();
 102                 }
 103         }
 104
 105         private ListViewer viewer;
 106         private ConversationHolder conversation;
 107         private IContextListener contextListener;
 108         private final CdmFormFactory formFactory;
 109         private Text text_filter;
 110
 111         private PolytomousKeyViewPartDataChangeBehavior dataChangeBehavior;
 112
 113         public PolytomousKeyViewPart(){
 114                 formFactory = new CdmFormFactory(Display.getDefault());
 115         }
 116
 117         /* (non-Javadoc)
 118          * @see org.eclipse.ui.part.WorkbenchPart#createPartControl(org.eclipse.swt.widgets.Composite)
 119          */
 120         @Override
 121         public void createPartControl(Composite parent) {
 122
 123                 Composite container = new Composite(parent, SWT.NONE);
 124                 container.setLayout(new GridLayout());
 125
 126                 contextListener = new ContextListener();
 127                 CdmStore.getContextManager().addContextListener(contextListener);
 128
 129                 text_filter = formFactory.createText(container, "");
 130                 text_filter.setLayoutData(new GridData(SWT.FILL, SWT.TOP, true, false));
 131                 text_filter.addModifyListener(new FilterModifyListener());
 132
 133                 viewer = new ListViewer(container, SWT.H_SCROLL | SWT.V_SCROLL | SWT.MULTI);
 134                 viewer.getControl().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
 135
 136                 viewer.setContentProvider(new PolytomousKeyContentProvider());
 137                 viewer.setLabelProvider(new PolytomousKeyLabelProvider());
 138
 139                 viewer.addDoubleClickListener(new IDoubleClickListener() {
 140
 141                         @Override
 142                         public void doubleClick(DoubleClickEvent event) {
 143
 144                                 ICommandService commandService = (ICommandService)getSite().getService(ICommandService.class);
 145
 146                                 Command command = commandService.getCommand(OPEN_COMMAND_ID);
 147                                 if(command.isEnabled()) {
 148                                         IHandlerService handlerService = (IHandlerService)getSite().getService(IHandlerService.class);
 149                                         try {
 150                                                 handlerService.executeCommand(OPEN_COMMAND_ID, null);
 151                                         } catch (NotDefinedException e) {
 152                                                 throw new RuntimeException("Could not find open command: " + OPEN_COMMAND_ID);
 153                                         } catch (Exception e) {
 154                                                 NavigationUtil.error(getClass(), "An exception occured while trying to open a selection", e);
 155                                         }
 156                                 }
 157                         }
 158                 });
 159
 160                 getSite().setSelectionProvider(viewer);
 161
 162                 createMenu();
 163
 164                 if(CdmStore.isActive()){
 165                         setInput();
 166                 }
 167         }
 168
 169         private void createMenu(){
 170                 MenuManager menuManager = new MenuManager();
 171                 menuManager.add(new GroupMarker(IWorkbenchActionConstants.MB_ADDITIONS));
 172
 173                 getSite().registerContextMenu(menuManager, viewer);
 174
 175                 Control control = viewer.getControl();
 176                 Menu menu = menuManager.createContextMenu(control);
 177
 178                 control.setMenu(menu);
 179         }
 180
 181         private void setInput() {
 182                 conversation = CdmStore.createConversation();
 183                 conversation.registerForDataStoreChanges(this);
 184                 List<PolytomousKey> input = CdmStore.getService(IPolytomousKeyService.class).list(PolytomousKey.class, null, null, null, null);
 185                 viewer.setInput(input);
 186         }
 187
 188         /* (non-Javadoc)
 189          * @see org.eclipse.ui.part.WorkbenchPart#setFocus()
 190          */
 191         @Override
 192         public void setFocus() {
 193                 viewer.getControl().setFocus();
 194         }
 195
 196         /* (non-Javadoc)
 197          * @see eu.etaxonomy.cdm.persistence.hibernate.ICdmPostDataChangeObserver#update(eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeMap)
 198          */
 199         @Override
 200         public void update(CdmDataChangeMap changeEvents) {
 201                 if (dataChangeBehavior == null) {
 202                         dataChangeBehavior = new PolytomousKeyViewPartDataChangeBehavior(this);
 203                 }
 204
 205                 DataChangeBridge.handleDataChange(changeEvents, dataChangeBehavior);
 206         }
 207
 208         /* (non-Javadoc)
 209          * @see eu.etaxonomy.cdm.api.conversation.IConversationEnabled#getConversationHolder()
 210          */
 211         @Override
 212         public ConversationHolder getConversationHolder() {
 213                 return conversation;
 214         }
 215
 216         /* (non-Javadoc)
 217          * @see org.eclipse.ui.part.WorkbenchPart#dispose()
 218          */
 219         @Override
 220         public void dispose() {
 221                 conversation.unregisterForDataStoreChanges(this);
 222                 conversation.close();
 223                 CdmStore.getContextManager().removeContextListener(contextListener);
 224                 super.dispose();
 225         }
 226
 227         /* (non-Javadoc)
 228          * @see eu.etaxonomy.taxeditor.operation.IPostOperationEnabled#postOperation(eu.etaxonomy.cdm.model.common.CdmBase)
 229          */
 230         @Override
 231         public boolean postOperation(CdmBase objectAffectedByOperation) {
 232                 viewer.refresh();
 233                 return true;
 234         }
 235
 236         /* (non-Javadoc)
 237          * @see eu.etaxonomy.taxeditor.operation.IPostOperationEnabled#onComplete()
 238          */
 239         @Override
 240         public boolean onComplete() {
 241                 return true;
 242         }
 243
 244         /**
 245          *
 246          */
 247         public void refresh() {
 248                 getConversationHolder().bind();
 249                 List<PolytomousKey> input = CdmStore.getService(IPolytomousKeyService.class).list(PolytomousKey.class, null, null, null, null);
 250                 viewer.setInput(input);
 251         }
 252
 253 }