@Override public Component getComponent() { if (panel == null) { panel = new ExtractedContentPanel(); panel.addPrevMatchControlListener(new PrevFindActionListener()); panel.addNextMatchControlListener(new NextFindActionListener()); panel.addPrevPageControlListener(new PrevPageActionListener()); panel.addNextPageControlListener(new NextPageActionListener()); panel.addSourceComboControlListener(new SourceChangeActionListener()); } return panel; }