SushiNavBarDropDownButton.java

package sushi.application.components;

import org.apache.wicket.model.IModel;

import de.agilecoders.wicket.markup.html.bootstrap.behavior.CssClassNameAppender;
import de.agilecoders.wicket.markup.html.bootstrap.button.ButtonSize;
import de.agilecoders.wicket.markup.html.bootstrap.button.ButtonType;
import de.agilecoders.wicket.markup.html.bootstrap.button.dropdown.DropDownButton;
import de.agilecoders.wicket.markup.html.bootstrap.navbar.Navbar;

/**
 * Subclass of {@link DropDownButton} for a {@link Navbar}.
 * This DropDownButton solves the problem for being displayed correctly after a refresh.
 * @author micha
 */
public class SushiNavBarDropDownButton extends DropDownButton {

	private static final long serialVersionUID = 1L;
	static final String COMPONENT_ID = "component";
	
    /**
     * Constructor for the {@link SushiNavBarDropDownButton}.
     *
     * @param model the label of this dropdown button
     */
    public SushiNavBarDropDownButton(final IModel<String> model) {
        super(COMPONENT_ID, model);
    }

    @Override
    protected void onConfigure() {
    	super.onConfigure();

        this.setRenderBodyOnly(true);
        this.getParent().add(new CssClassNameAppender("dropdown"));
    }

    @Override
    protected void addButtonBehavior(final IModel<ButtonType> buttonType, final IModel<ButtonSize> buttonSize) {
        // do nothing, because navbar dropdown button inherits its styles from navbar.
    }

}