Java tutorial
/** * This file is part of mycollab-mobile. * * mycollab-mobile is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * mycollab-mobile is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with mycollab-mobile. If not, see <http://www.gnu.org/licenses/>. */ package com.esofthead.mycollab.mobile.ui; import java.util.HashMap; import java.util.Iterator; import java.util.Map; import com.esofthead.vaadin.mobilecomponent.NavigationMenuButton; import com.vaadin.ui.Button; import com.vaadin.ui.CssLayout; /** * * @author MyCollab Ltd. * @since 4.0 * */ public abstract class AbstractNavigationMenu extends CssLayout { private static final long serialVersionUID = -8517225259459579426L; protected final Button.ClickListener defaultBtnClickListener; protected final Map<String, MenuButton> buttonMap = new HashMap<String, MenuButton>(); public AbstractNavigationMenu() { super(); setWidth("250px"); setStyleName("navigation-menu"); defaultBtnClickListener = createDefaultButtonClickListener(); } public static class MenuButton extends Button { private static final long serialVersionUID = -2516191547029466932L; private final String btnId; public MenuButton(String caption, String iconCode) { super("<span class=\"nav-btn-icon\" aria-hidden=\"true\" data-icon=\"" + iconCode + "\"></span>" + caption); setStyleName("nav-btn"); setHtmlContentAllowed(true); setWidth("100%"); btnId = caption; NavigationMenuButton.extend(this); } public String getBtnId() { return btnId; } } public void addMenu(MenuButton newMenu) { newMenu.addClickListener(defaultBtnClickListener); addComponent(newMenu); buttonMap.put(newMenu.getBtnId(), newMenu); } public void selectButton(String caption) { for (final Iterator<MenuButton> it = this.buttonIterator(); it.hasNext();) { final MenuButton btn = it.next(); btn.removeStyleName("isSelected"); if (btn.getBtnId().equals(caption)) { btn.addStyleName("isSelected"); } } } protected Iterator<MenuButton> buttonIterator() { return buttonMap.values().iterator(); } protected abstract Button.ClickListener createDefaultButtonClickListener(); }