/** {@inheritDoc} */
@Override
protected void uninstallListeners(JComponent c) {
super.uninstallListeners(c);
c.removePropertyChangeListener(this);
if (viewportViewFocusHandler != null) {
JViewport viewport = ((JScrollPane) c).getViewport();
viewport.removeContainerListener(viewportViewFocusHandler);
if (viewport.getView() != null) {
viewport.getView().removeFocusListener(viewportViewFocusHandler);
}
viewportViewFocusHandler = null;
}
}
/** {@inheritDoc} */
@Override
protected void installListeners(JScrollPane c) {
super.installListeners(c);
c.addPropertyChangeListener(this);
if (UIManager.getBoolean("ScrollPane.useChildTextComponentFocus")) {
viewportViewFocusHandler = new ViewportViewFocusHandler();
c.getViewport().addContainerListener(viewportViewFocusHandler);
Component view = c.getViewport().getView();
if (view instanceof JTextComponent) {
view.addFocusListener(viewportViewFocusHandler);
}
}
}