/**
 * Installs the state needed for mnemonics.
 */
protected void initMnemonics() {
    mnemonicToIndexMap = new Hashtable<>();
    mnemonicInputMap = new ComponentInputMapUIResource(tabPane);
    mnemonicInputMap.setParent(SwingUtilities.getUIInputMap(tabPane,
                                                            JComponent.WHEN_IN_FOCUSED_WINDOW));
    SwingUtilities.replaceUIInputMap(tabPane,
                                     JComponent.WHEN_IN_FOCUSED_WINDOW,
                                     mnemonicInputMap);
}
 

@Override
public void install ( @NotNull final C component )
{
    super.install ( component );

    // Installing listeners
    component.addPropertyChangeListener ( this );
    component.addMouseListener ( this );
    component.addMouseWheelListener ( this );

    // Installing ActionMap
    final UIActionMap actionMap = new UIActionMap ();
    actionMap.put ( new Actions ( component, Actions.NEXT ) );
    actionMap.put ( new Actions ( component, Actions.PREVIOUS ) );
    actionMap.put ( new Actions ( component, Actions.RIGHT ) );
    actionMap.put ( new Actions ( component, Actions.LEFT ) );
    actionMap.put ( new Actions ( component, Actions.UP ) );
    actionMap.put ( new Actions ( component, Actions.DOWN ) );
    actionMap.put ( new Actions ( component, Actions.PAGE_UP ) );
    actionMap.put ( new Actions ( component, Actions.PAGE_DOWN ) );
    actionMap.put ( new Actions ( component, Actions.REQUEST_FOCUS ) );
    actionMap.put ( new Actions ( component, Actions.REQUEST_FOCUS_FOR_VISIBLE ) );
    actionMap.put ( new Actions ( component, Actions.SET_SELECTED ) );
    actionMap.put ( new Actions ( component, Actions.SCROLL_FORWARD ) );
    actionMap.put ( new Actions ( component, Actions.SCROLL_BACKWARD ) );
    SwingUtilities.replaceUIActionMap ( component, actionMap );

    // Installing InputMap
    final InputMap focusedMap = LafLookup.getInputMap ( component, JComponent.WHEN_FOCUSED );
    SwingUtilities.replaceUIInputMap ( component, JComponent.WHEN_FOCUSED, focusedMap );
    final InputMap ancestorMap = LafLookup.getInputMap ( component, JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT );
    SwingUtilities.replaceUIInputMap ( component, JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, ancestorMap );

    // Installing mnemonic InputMap
    mnemonicInputMap = new ComponentInputMapUIResource ( component );
    mnemonicInputMap.setParent ( SwingUtilities.getUIInputMap ( component, JComponent.WHEN_IN_FOCUSED_WINDOW ) );
    SwingUtilities.replaceUIInputMap ( component, JComponent.WHEN_IN_FOCUSED_WINDOW, mnemonicInputMap );
}
 

/**
 * Installs the maps on the root pane of the originating component of
 * the first popup panel of the specified sequence to trace the ESC key
 * and dismiss the shown popup panels.
 *
 * @param shownPath Popup panel sequence.
 */
private void traceRootPane(List<PopupPanelManager.PopupInfo> shownPath) {
    JComponent originator = shownPath.get(0).getPopupOriginator();
    this.tracedRootPane = SwingUtilities.getRootPane(originator);

    if (this.tracedRootPane != null) {
        newInputMap = new ComponentInputMapUIResource(tracedRootPane);
        newInputMap.put(KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0),
                "hidePopupPanel");

        newActionMap = new ActionMapUIResource();
        newActionMap.put("hidePopupPanel", new AbstractAction() {
            @Override
            public void actionPerformed(ActionEvent e) {
                // Hide the last sequence popup for every ESC keystroke.
                // There is special case - if the keytips are shown
                // for the *second* panel of the app menu popup panel,
                // do not dismiss the popup
                List<PopupPanelManager.PopupInfo> popups = PopupPanelManager
                        .defaultManager().getShownPath();
                if (popups.size() > 0) {
                    PopupPanelManager.PopupInfo lastPopup = popups
                            .get(popups.size() - 1);
                    if (lastPopup.getPopupPanel() instanceof JRibbonApplicationMenuPopupPanel) {
                        JRibbonApplicationMenuPopupPanel appMenuPopupPanel =
                                (JRibbonApplicationMenuPopupPanel) lastPopup
                                        .getPopupPanel();
                        KeyTipManager.KeyTipChain currentlyShownKeyTipChain = KeyTipManager
                                .defaultManager().getCurrentlyShownKeyTipChain();
                        if ((currentlyShownKeyTipChain != null)
                                && (currentlyShownKeyTipChain.chainParentComponent == appMenuPopupPanel
                                .getPanelLevel2()))
                            return;
                    }
                }
                PopupPanelManager.defaultManager().hideLastPopup();
            }
        });

        addUIInputMap(tracedRootPane, newInputMap);
        addUIActionMap(tracedRootPane, newActionMap);
    }
}