eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/view/specimenSearch/SpecimenProviderSelectionController.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2014 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.specimenSearch;
  11
  12 import org.eclipse.jface.wizard.IWizard;
  13 import org.eclipse.swt.SWT;
  14 import org.eclipse.swt.widgets.Composite;
  15 import org.eclipse.swt.widgets.Event;
  16 import org.eclipse.swt.widgets.Listener;
  17 import org.eclipse.swt.widgets.Text;
  18
  19 /**
  20  * Controller class for handling {@link SpecimenProviderSelectionComposite}
  21  * @author pplitzner
  22  * @date 22.05.2014
  23  *
  24  */
  25 public class SpecimenProviderSelectionController implements Listener{
  26
  27     private SpecimenProviderSelectionComposite composite;
  28     private IWizard wizard;
  29     private String lastAccessPoint;
  30
  31     private static SpecimenProviderSelectionController instance;
  32
  33     public static SpecimenProviderSelectionController getInstance(Composite parent, IWizard wizard){
  34         if(instance==null){
  35             instance = new SpecimenProviderSelectionController(parent, wizard);
  36             return instance;
  37         }
  38         instance.init(parent, wizard);
  39         return instance;
  40     }
  41
  42
  43     /**
  44      * Constructs a new controller which will itself construct the composite
  45      * @param parent the parent {@link Composite} for the one handles by this controller
  46      */
  47     private SpecimenProviderSelectionController(Composite parent, IWizard wizard) {
  48         init(parent, wizard);
  49     }
  50
  51     /**
  52      * @param parent
  53      * @param wizard
  54      */
  55     private void init(Composite parent, IWizard wizard) {
  56         this.wizard = wizard;
  57         composite = new SpecimenProviderSelectionComposite(parent, SWT.NONE);
  58         composite.getBtnBioCaseProvider().addListener(SWT.Selection, this);
  59         composite.getBtnGbif().addListener(SWT.Selection, this);
  60         composite.getTxtAccessPoint().addListener(SWT.Modify, this);
  61         composite.getBtnGbif().setSelection(true);
  62         composite.getTxtAccessPoint().setEnabled(false);
  63         composite.getLblAccessPointUrl().setEnabled(false);
  64
  65         loadLastState();
  66     }
  67
  68     private void loadLastState() {
  69         if(lastAccessPoint!=null){
  70             Text text = composite.getTxtAccessPoint();
  71             Listener[] listeners = text.getListeners(SWT.Modify);
  72             for (int i = 0; i < listeners.length; i++) {
  73                 text.removeListener(SWT.Modify, listeners[i]);
  74             }
  75             text.setText(lastAccessPoint);
  76             for (int i = 0; i < listeners.length; i++) {
  77                 text.addListener(SWT.Modify, listeners[i]);
  78             }
  79
  80         }
  81     }
  82
  83
  84     /* (non-Javadoc)
  85      * @see org.eclipse.swt.widgets.Listener#handleEvent(org.eclipse.swt.widgets.Event)
  86      */
  87     @Override
  88     public void handleEvent(Event event) {
  89         if(event.widget==composite.getBtnBioCaseProvider()){
  90             composite.getTxtAccessPoint().setEnabled(true);
  91             composite.getLblAccessPointUrl().setEnabled(true);
  92         }
  93         else if(event.widget==composite.getBtnGbif()){
  94             composite.getLblAccessPointUrl().setEnabled(false);
  95             composite.getTxtAccessPoint().setEnabled(false);
  96         }
  97         wizard.getContainer().updateButtons();
  98     }
  99
 100     /**
 101      * @return the composite
 102      */
 103     public SpecimenProviderSelectionComposite getComposite() {
 104         return composite;
 105     }
 106
 107
 108     public void saveLastState() {
 109         lastAccessPoint = composite.getTxtAccessPoint().getText();
 110     }
 111
 112 }