eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/view/CdmViewerChooser.java

   1 // $Id$
   2 /**
   3  * Copyright (C) 2015 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.view;
  11
  12 import java.util.Map;
  13 import java.util.Map.Entry;
  14
  15 import org.eclipse.jface.dialogs.PopupDialog;
  16 import org.eclipse.jface.viewers.ArrayContentProvider;
  17 import org.eclipse.jface.viewers.ILabelProvider;
  18 import org.eclipse.jface.viewers.ILabelProviderListener;
  19 import org.eclipse.jface.viewers.ISelection;
  20 import org.eclipse.jface.viewers.ISelectionChangedListener;
  21 import org.eclipse.jface.viewers.IStructuredSelection;
  22 import org.eclipse.jface.viewers.SelectionChangedEvent;
  23 import org.eclipse.jface.viewers.TableViewer;
  24 import org.eclipse.swt.SWT;
  25 import org.eclipse.swt.graphics.Image;
  26 import org.eclipse.swt.widgets.Composite;
  27 import org.eclipse.swt.widgets.Control;
  28 import org.eclipse.swt.widgets.Shell;
  29 import org.eclipse.swt.widgets.Table;
  30
  31 /**
  32  * This class opens a popup dialog and provides the possibility to choose from a
  33  * list of possible viewers which can be opened for a given input.
  34  *
  35  * @author pplitzner
  36  * @date Feb 23, 2015
  37  *
  38  */
  39 public class CdmViewerChooser extends PopupDialog implements ISelectionChangedListener, ILabelProvider{
  40
  41     private Object input;
  42     private Map<Entry<Class<?>, String>, ICdmViewer> nameViewerMap;
  43
  44     public CdmViewerChooser(Shell parentShell) {
  45         this(parentShell, SWT.RESIZE | SWT.ON_TOP, true, false, false, false, false, "Open in ...",
  46                 "Clicking will open the selected viewer");
  47     }
  48
  49     public CdmViewerChooser(Shell parent, int shellStyle, boolean takeFocusOnOpen, boolean persistSize,
  50             boolean persistLocation, boolean showDialogMenu, boolean showPersistActions, String titleText,
  51             String infoText) {
  52         super(parent, shellStyle, takeFocusOnOpen, persistSize, persistLocation, showDialogMenu, showPersistActions,
  53                 titleText, infoText);
  54     }
  55
  56     /**
  57      * Opens a popup dialog with all possible viewers for the given input.
  58      * @param input the input for which the viewers are listed
  59      */
  60     public void chooseViewer(Object input){
  61         this.input = input;
  62         this.nameViewerMap = CdmViewerUtil.getNameViewerMap(input);
  63
  64         //if only one editor is available then open it
  65         if(nameViewerMap.size()==1){
  66             Entry<Class<?>, String> next = nameViewerMap.keySet().iterator().next();
  67             ICdmViewer cdmViewer = nameViewerMap.get(next);
  68             cdmViewer.show(input, next.getKey());
  69         }
  70         else{
  71             if(nameViewerMap.isEmpty()){
  72                 this.setInfoText("No viewers registered for this input");
  73             }
  74             this.open();
  75         }
  76     }
  77
  78     @Override
  79     protected Control createDialogArea(Composite parent) {
  80         TableViewer viewer = new TableViewer(new Table(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL | SWT.FULL_SELECTION));
  81         viewer.setContentProvider(new ArrayContentProvider());
  82         viewer.setLabelProvider(this);
  83         viewer.addSelectionChangedListener(this);
  84         viewer.setInput(nameViewerMap.keySet());
  85         return parent;
  86     }
  87
  88     @Override
  89     public void selectionChanged(SelectionChangedEvent event) {
  90         ISelection selection = event.getSelection();
  91         if(selection instanceof IStructuredSelection){
  92             Object firstElement = ((IStructuredSelection) selection).getFirstElement();
  93             if(nameViewerMap.containsKey(firstElement)){
  94                 Entry<Class<?>, String> entry = (Entry<Class<?>, String>)firstElement;
  95                 ICdmViewer cdmViewer = nameViewerMap.get(entry);
  96                 cdmViewer.show(input, entry.getKey());
  97                 this.close();
  98             }
  99         }
 100     }
 101
 102     @Override
 103     public String getText(Object element) {
 104         String text = null;
 105         if(nameViewerMap.containsKey(element)){
 106             Entry<Class<?>, String> entry = (Entry<Class<?>, String>) element;
 107             text = entry.getValue();
 108         }
 109         return text;
 110     }
 111
 112     @Override
 113     public void addListener(ILabelProviderListener listener) {
 114         // TODO Auto-generated method stub
 115
 116     }
 117
 118     @Override
 119     public void dispose() {
 120         // TODO Auto-generated method stub
 121
 122     }
 123
 124     @Override
 125     public boolean isLabelProperty(Object element, String property) {
 126         // TODO Auto-generated method stub
 127         return false;
 128     }
 129
 130     @Override
 131     public void removeListener(ILabelProviderListener listener) {
 132         // TODO Auto-generated method stub
 133
 134     }
 135
 136     @Override
 137     public Image getImage(Object element) {
 138         // TODO Auto-generated method stub
 139         return null;
 140     }
 141
 142 }