eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/view/search/specimen/SpecimenProviderSelectionController.java

   1 /**
   2 * Copyright (C) 2014 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   6 * The contents of this file are subject to the Mozilla Public License Version 1.1
   7 * See LICENSE.TXT at the top of this package for the full license terms.
   8 */
   9 package eu.etaxonomy.taxeditor.view.search.specimen;
  10
  11 import org.eclipse.jface.wizard.IWizard;
  12 import org.eclipse.swt.SWT;
  13 import org.eclipse.swt.widgets.Combo;
  14 import org.eclipse.swt.widgets.Composite;
  15 import org.eclipse.swt.widgets.Event;
  16 import org.eclipse.swt.widgets.Listener;
  17
  18 import eu.etaxonomy.taxeditor.preference.PreferencesUtil;
  19
  20 /**
  21  * Controller class for handling {@link SpecimenProviderSelectionComposite}
  22  * @author pplitzner
  23  * @date 22.05.2014
  24  *
  25  */
  26 public class SpecimenProviderSelectionController implements Listener{
  27
  28     private SpecimenProviderSelectionComposite composite;
  29     private IWizard wizard;
  30     private String lastAccessPoint;
  31
  32     private static SpecimenProviderSelectionController instance;
  33
  34     public static SpecimenProviderSelectionController getInstance(Composite parent, IWizard wizard){
  35         if(instance==null){
  36             instance = new SpecimenProviderSelectionController(parent, wizard);
  37             return instance;
  38         }
  39         instance.init(parent, wizard);
  40         return instance;
  41     }
  42
  43
  44     /**
  45      * Constructs a new controller which will itself construct the composite
  46      * @param parent the parent {@link Composite} for the one handles by this controller
  47      */
  48     private SpecimenProviderSelectionController(Composite parent, IWizard wizard) {
  49         init(parent, wizard);
  50     }
  51
  52     /**
  53      * @param parent
  54      * @param wizard
  55      */
  56     private void init(Composite parent, IWizard wizard) {
  57         this.wizard = wizard;
  58         composite = new SpecimenProviderSelectionComposite(parent, SWT.NONE);
  59         composite.getBtnBioCaseProvider().addListener(SWT.Selection, this);
  60         composite.getBtnGbif().addListener(SWT.Selection, this);
  61         composite.getTxtAccessPoint().addListener(SWT.Modify, this);
  62         composite.getBtnGbif().setSelection(true);
  63         composite.getTxtAccessPoint().setEnabled(false);
  64         loadLastState();
  65     }
  66
  67     private void loadLastState() {
  68         if (lastAccessPoint == null){
  69             String lastSelected = PreferencesUtil.getStringValue(PreferencesUtil.LAST_USED_BIOCASE_PROVIDER, true);
  70             lastAccessPoint = lastSelected;
  71         }
  72         if(lastAccessPoint!=null){
  73             Combo text = composite.getTxtAccessPoint();
  74             Listener[] listeners = text.getListeners(SWT.Modify);
  75             for (int i = 0; i < listeners.length; i++) {
  76                 text.removeListener(SWT.Modify, listeners[i]);
  77             }
  78             text.setText(lastAccessPoint);
  79             for (int i = 0; i < listeners.length; i++) {
  80                 text.addListener(SWT.Modify, listeners[i]);
  81             }
  82             composite.getBtnGbif().setSelection(false);
  83             composite.getTxtAccessPoint().setEnabled(true);
  84
  85
  86         }
  87     }
  88
  89
  90     /* (non-Javadoc)
  91      * @see org.eclipse.swt.widgets.Listener#handleEvent(org.eclipse.swt.widgets.Event)
  92      */
  93     @Override
  94     public void handleEvent(Event event) {
  95         if(event.widget==composite.getBtnBioCaseProvider()){
  96             composite.getTxtAccessPoint().setEnabled(true);
  97         }
  98         else if(event.widget==composite.getBtnGbif()){
  99             composite.getTxtAccessPoint().setEnabled(false);
 100         }
 101         wizard.getContainer().updateButtons();
 102     }
 103
 104     /**
 105      * @return the composite
 106      */
 107     public SpecimenProviderSelectionComposite getComposite() {
 108         return composite;
 109     }
 110
 111
 112     public void saveLastState() {
 113         lastAccessPoint = composite.getTxtAccessPoint().getText();
 114         PreferencesUtil.setLastSelectedBiocaseProvider(lastAccessPoint);
 115     }
 116
 117 }