taxeditor-store/src/main/java/eu/etaxonomy/taxeditor/dialogs/UriDialog.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.dialogs;
  12
  13 import java.net.URI;
  14 import java.net.URISyntaxException;
  15
  16 import org.eclipse.jface.dialogs.IInputValidator;
  17 import org.eclipse.jface.dialogs.InputDialog;
  18 import org.eclipse.jface.window.Window;
  19 import org.eclipse.swt.widgets.Shell;
  20
  21 /**
  22  * <p>UriDialog class.</p>
  23  *
  24  * @author p.ciardelli
  25  * @created 31.03.2009
  26  * @version 1.0
  27  *
  28  * TODO make this extend TitleAreaDialog
  29  */
  30 public class UriDialog extends InputDialog {
  31
  32         /**
  33          * @param parentShell
  34          * @param dialogTitle
  35          * @param dialogMessage
  36          * @param initialValue
  37          * @param validator
  38          */
  39         private UriDialog(Shell parentShell, String dialogTitle,
  40                         String dialogMessage) {
  41                 super(parentShell, dialogTitle,
  42                                 dialogMessage, "http://", new IInputValidator() {
  43
  44                                         public String isValid(String text) {
  45
  46                                                 try {
  47                                                         new URI(text);
  48                                                 } catch (URISyntaxException e) {
  49                                                         return "URL not correctly formed.";
  50                                                 }
  51
  52
  53                                                 if (text.length() <= "http://".length()) {
  54                                                         return "";
  55                                                 }
  56                                                 return null;
  57                                         }
  58
  59                 });
  60         }
  61
  62         private URI getUri() {
  63                 URI uri = null;
  64                 try {
  65                         uri = new URI(getValue());
  66                 } catch (URISyntaxException e) {
  67                         // TODO Auto-generated catch block
  68                         e.printStackTrace();
  69                 }
  70                 return uri;
  71         }
  72
  73         /**
  74          * <p>getUri</p>
  75          *
  76          * @param shell a {@link org.eclipse.swt.widgets.Shell} object.
  77          * @param dialogTitle a {@link java.lang.String} object.
  78          * @param dialogMessage a {@link java.lang.String} object.
  79          * @return a {@link java.net.URI} object.
  80          */
  81         public static URI getUri(Shell shell, String dialogTitle,
  82                         String dialogMessage) {
  83                 UriDialog dialog = new UriDialog(shell,
  84                                 dialogTitle,
  85                                 dialogMessage);
  86                 if (dialog.open() == Window.CANCEL) {
  87                         return null;
  88                 }
  89                 return dialog.getUri();
  90         }
  91 }