eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/media/MediaViewPart.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2007 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
  11 package eu.etaxonomy.taxeditor.editor.view.media;
  12
  13 import org.eclipse.jface.action.GroupMarker;
  14 import org.eclipse.jface.action.MenuManager;
  15 import org.eclipse.jface.viewers.ISelection;
  16 import org.eclipse.jface.viewers.IStructuredSelection;
  17 import org.eclipse.jface.viewers.StructuredSelection;
  18 import org.eclipse.jface.viewers.TreeNode;
  19 import org.eclipse.jface.viewers.TreeViewer;
  20 import org.eclipse.jface.viewers.Viewer;
  21 import org.eclipse.swt.SWT;
  22 import org.eclipse.swt.widgets.Composite;
  23 import org.eclipse.swt.widgets.Control;
  24 import org.eclipse.swt.widgets.Menu;
  25 import org.eclipse.swt.widgets.Tree;
  26 import org.eclipse.ui.IEditorInput;
  27 import org.eclipse.ui.IEditorPart;
  28 import org.eclipse.ui.IWorkbenchActionConstants;
  29 import org.eclipse.ui.IWorkbenchPart;
  30
  31 import eu.etaxonomy.cdm.model.occurrence.SpecimenOrObservationBase;
  32 import eu.etaxonomy.taxeditor.bulkeditor.BulkEditor;
  33 import eu.etaxonomy.taxeditor.editor.MultiPageTaxonEditor;
  34 import eu.etaxonomy.taxeditor.model.AbstractUtility;
  35 import eu.etaxonomy.taxeditor.model.IPartContentHasDetails;
  36 import eu.etaxonomy.taxeditor.model.IPartContentHasMedia;
  37 import eu.etaxonomy.taxeditor.model.IPartContentHasSupplementalData;
  38 import eu.etaxonomy.taxeditor.view.AbstractCdmEditorViewPart;
  39 import eu.etaxonomy.taxeditor.view.detail.DetailsViewPart;
  40 import eu.etaxonomy.taxeditor.view.supplementaldata.SupplementalDataViewPart;
  41
  42 /**
  43  * <p>MediaViewPart class.</p>
  44  *
  45  * @author n.hoffmann
  46  * @created Jun 15, 2010
  47  * @version 1.0
  48  */
  49 public class MediaViewPart extends AbstractCdmEditorViewPart implements IPartContentHasDetails, IPartContentHasSupplementalData {
  50
  51         /** Constant <code>ID="eu.etaxonomy.taxeditor.editor.view.medi"{trunked}</code> */
  52         public static final String ID = "eu.etaxonomy.taxeditor.editor.view.media";
  53
  54
  55         private TreeViewer viewer;
  56
  57         /*
  58          * (non-Javadoc)
  59          * @see eu.etaxonomy.taxeditor.model.AbstractCdmViewPart#createViewer(org.eclipse.swt.widgets.Composite)
  60          */
  61         /** {@inheritDoc} */
  62         @Override
  63         public void createViewer(Composite parent) {
  64
  65                 viewer = new TreeViewer(new Tree(parent, SWT.MULTI | SWT.H_SCROLL
  66                                 | SWT.V_SCROLL | SWT.FULL_SELECTION));
  67
  68                 viewer.setContentProvider(new MediaContentProvider());
  69                 viewer.setLabelProvider(new MediaLabelProvider());
  70                 viewer.setAutoExpandLevel(2);
  71
  72                 // Propagate selection from viewer
  73                 getSite().setSelectionProvider(viewer);
  74
  75                 // Add context menu to tree
  76                 MenuManager menuMgr = new MenuManager();
  77                 menuMgr.add(new GroupMarker(IWorkbenchActionConstants.MB_ADDITIONS));
  78                 getSite().registerContextMenu(menuMgr, viewer);
  79
  80                 Control control = viewer.getControl();
  81                 Menu menu = menuMgr.createContextMenu(control);
  82                 control.setMenu(menu);
  83
  84         }
  85
  86         /* (non-Javadoc)
  87          * @see eu.etaxonomy.taxeditor.model.AbstractCdmViewPart#getInitialSelection()
  88          */
  89         /** {@inheritDoc} */
  90         @Override
  91         protected ISelection getInitialSelection() {
  92                 if(getEditor() != null){
  93                         return new StructuredSelection(getEditor().getEditorInput());
  94                 }
  95
  96                 return super.getInitialSelection();
  97         }
  98
  99         /** {@inheritDoc} */
 100         @Override
 101     protected void selectionChanged_internal(IWorkbenchPart part, ISelection selection) {
 102             if(part==this){
 103                 return;
 104             }
 105                 if(AbstractUtility.getActiveEditor() == null){
 106                         showEmptyPage();
 107                         return;
 108                 }
 109
 110         if(part instanceof DetailsViewPart || part instanceof SupplementalDataViewPart){
 111             // do not show empty page as these views are also used to edit the description selected in this view
 112             return;
 113         }
 114
 115                 if(part instanceof IPartContentHasMedia && ((IPartContentHasMedia) part).canAttachMedia()){
 116                     if(part instanceof MultiPageTaxonEditor){
 117                         IEditorInput input = ((IEditorPart) part).getEditorInput();
 118                         showViewer(part, new StructuredSelection(input));
 119                     }
 120                     else if(selection instanceof IStructuredSelection){
 121                         Object firstElement = ((IStructuredSelection) selection).getFirstElement();
 122                         if(firstElement instanceof TreeNode){
 123                             showViewer(part, new StructuredSelection(((TreeNode) firstElement).getValue()));
 124                         }
 125                         else{
 126                             showViewer(part, (IStructuredSelection) selection);
 127                         }
 128                     }else{
 129                         showEmptyPage();
 130                     }
 131                 }
 132                 else{
 133                     showEmptyPage();
 134                 }
 135         }
 136
 137         /** {@inheritDoc} */
 138         @Override
 139         public void changed(Object object) {
 140             viewer.expandToLevel(2);
 141             viewer.refresh();
 142             if(object != null){
 143                 StructuredSelection selection = new StructuredSelection(object);
 144                 viewer.setSelection(selection, true);
 145             }
 146             //TODO: should be replaced with the possibility to set views dirty
 147             // when we move to Eclipse 4
 148             // take a look at ISaveblePart
 149             if(part instanceof BulkEditor && !(object instanceof SpecimenOrObservationBase<?>)){
 150                 ((BulkEditor) part).forceDirty();
 151             }
 152             super.changed(object);
 153         }
 154
 155         /** {@inheritDoc} */
 156         @Override
 157         public Viewer getViewer() {
 158                 return viewer;
 159         }
 160
 161         /**
 162          * <p>onComplete</p>
 163          *
 164          * @return a boolean.
 165          */
 166         @Override
 167     public boolean onComplete() {
 168                 return true;
 169         }
 170 }