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| import java.awt.event.ActionEvent; | |
| import java.awt.event.ActionListener; | |
| import javax.swing.Timer; | |
| import javax.swing.event.DocumentEvent; | |
| import javax.swing.event.DocumentListener; | |
| public class DelayedDocumentListener implements DocumentListener { | |
| private final Timer timer; | |
| private DocumentEvent lastEvent; | |
| public DelayedDocumentListener(DocumentListener delegate) { | |
| this(delegate, 500); | |
| } | |
| public DelayedDocumentListener(final DocumentListener delegate, int delay) { | |
| timer = new Timer(delay, new ActionListener() { | |
| @Override | |
| public void actionPerformed(ActionEvent e) { | |
| timer.stop(); | |
| if (lastEvent.getType() == DocumentEvent.EventType.INSERT) { | |
| delegate.insertUpdate(lastEvent); | |
| } else if (lastEvent.getType() == DocumentEvent.EventType.REMOVE) { | |
| delegate.removeUpdate(lastEvent); | |
| } else { | |
| delegate.changedUpdate(lastEvent); | |
| } | |
| } | |
| }); | |
| } | |
| private void storeUpdate(DocumentEvent e) { | |
| lastEvent = e; | |
| timer.restart(); | |
| } | |
| @Override | |
| public void insertUpdate(DocumentEvent e) { | |
| storeUpdate(e); | |
| } | |
| @Override | |
| public void removeUpdate(DocumentEvent e) { | |
| storeUpdate(e); | |
| } | |
| @Override | |
| public void changedUpdate(DocumentEvent e) { | |
| storeUpdate(e); | |
| } | |
| } |
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