eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/view/specimenSearch/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.specimenSearch;
  10
  11 import org.eclipse.jface.wizard.IWizard;
  12 import org.eclipse.swt.SWT;
  13 import org.eclipse.swt.widgets.Composite;
  14 import org.eclipse.swt.widgets.Event;
  15 import org.eclipse.swt.widgets.Listener;
  16 import org.eclipse.swt.widgets.Text;
  17
  18 /**
  19  * Controller class for handling {@link SpecimenProviderSelectionComposite}
  20  * @author pplitzner
  21  * @date 22.05.2014
  22  *
  23  */
  24 public class SpecimenProviderSelectionController implements Listener{
  25
  26     private SpecimenProviderSelectionComposite composite;
  27     private IWizard wizard;
  28     private String lastAccessPoint;
  29
  30     private static SpecimenProviderSelectionController instance;
  31
  32     public static SpecimenProviderSelectionController getInstance(Composite parent, IWizard wizard){
  33         if(instance==null){
  34             instance = new SpecimenProviderSelectionController(parent, wizard);
  35             return instance;
  36         }
  37         instance.init(parent, wizard);
  38         return instance;
  39     }
  40
  41
  42     /**
  43      * Constructs a new controller which will itself construct the composite
  44      * @param parent the parent {@link Composite} for the one handles by this controller
  45      */
  46     private SpecimenProviderSelectionController(Composite parent, IWizard wizard) {
  47         init(parent, wizard);
  48     }
  49
  50     /**
  51      * @param parent
  52      * @param wizard
  53      */
  54     private void init(Composite parent, IWizard wizard) {
  55         this.wizard = wizard;
  56         composite = new SpecimenProviderSelectionComposite(parent, SWT.NONE);
  57         composite.getBtnBioCaseProvider().addListener(SWT.Selection, this);
  58         composite.getBtnGbif().addListener(SWT.Selection, this);
  59         composite.getTxtAccessPoint().addListener(SWT.Modify, this);
  60         composite.getBtnGbif().setSelection(true);
  61         composite.getTxtAccessPoint().setEnabled(false);
  62         composite.getLblAccessPointUrl().setEnabled(false);
  63
  64         loadLastState();
  65     }
  66
  67     private void loadLastState() {
  68         if(lastAccessPoint!=null){
  69             Text text = composite.getTxtAccessPoint();
  70             Listener[] listeners = text.getListeners(SWT.Modify);
  71             for (int i = 0; i < listeners.length; i++) {
  72                 text.removeListener(SWT.Modify, listeners[i]);
  73             }
  74             text.setText(lastAccessPoint);
  75             for (int i = 0; i < listeners.length; i++) {
  76                 text.addListener(SWT.Modify, listeners[i]);
  77             }
  78
  79         }
  80     }
  81
  82
  83     /* (non-Javadoc)
  84      * @see org.eclipse.swt.widgets.Listener#handleEvent(org.eclipse.swt.widgets.Event)
  85      */
  86     @Override
  87     public void handleEvent(Event event) {
  88         if(event.widget==composite.getBtnBioCaseProvider()){
  89             composite.getTxtAccessPoint().setEnabled(true);
  90             composite.getLblAccessPointUrl().setEnabled(true);
  91         }
  92         else if(event.widget==composite.getBtnGbif()){
  93             composite.getLblAccessPointUrl().setEnabled(false);
  94             composite.getTxtAccessPoint().setEnabled(false);
  95         }
  96         wizard.getContainer().updateButtons();
  97     }
  98
  99     /**
 100      * @return the composite
 101      */
 102     public SpecimenProviderSelectionComposite getComposite() {
 103         return composite;
 104     }
 105
 106
 107     public void saveLastState() {
 108         lastAccessPoint = composite.getTxtAccessPoint().getText();
 109     }
 110
 111 }