eclipseprojects/eu.etaxonomy.taxeditor.prototype2/src/eu/etaxonomy/taxeditor/prototype2/view/nameviewersupport/NameViewerKeyListener.java

   1 package eu.etaxonomy.taxeditor.prototype2.view.nameviewersupport;
   2
   3 import org.eclipse.core.runtime.Assert;
   4 import org.eclipse.swt.SWT;
   5 import org.eclipse.swt.custom.StyledText;
   6 import org.eclipse.swt.events.KeyEvent;
   7 import org.eclipse.swt.events.KeyListener;
   8
   9 import eu.etaxonomy.cdm.model.taxon.Taxon;
  10 import eu.etaxonomy.taxeditor.prototype2.controller.ActionAddSynonymToTaxon;
  11
  12 /**
  13  * The only purpose of this listener is to catch carriage returns
  14  *  at end-of-line, and create new empty name viewers.
  15  *
  16  * Carriage returns in the middle of a line are caught by
  17  *  NameViewerModifyListener.
  18  *
  19  * @author p.ciardelli
  20  *
  21  */
  22 public class NameViewerKeyListener implements KeyListener {
  23
  24         private Taxon taxon;
  25
  26         public NameViewerKeyListener(Taxon taxon) {
  27
  28                 Assert.isNotNull(taxon);
  29                 this.taxon = taxon;
  30         }
  31
  32         public void keyPressed(KeyEvent e) {
  33                 StyledText sText = (StyledText) e.widget;
  34
  35                 // If user has pressed carriage return at EOL,
  36                 //  the modifyListener doesn't catch it -
  37                 //  make new source viewer
  38                 if (e.character == SWT.CR &&
  39                                 sText.getCaretOffset() == sText.getText().length()) {
  40                         new ActionAddSynonymToTaxon(taxon, "").run();
  41                 }
  42         }
  43         public void keyReleased(KeyEvent e) { }
  44 }