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