Java tutorial
/* * This library is part of OpenCms - * the Open Source Content Management System * * Copyright (c) Alkacon Software GmbH & Co. KG (http://www.alkacon.com) * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * For further information about Alkacon Software, please see the * company website: http://www.alkacon.com * * For further information about OpenCms, please see the * project website: http://www.opencms.org * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ package org.opencms.ui.apps; import org.opencms.file.CmsObject; import org.opencms.ui.A_CmsUI; import org.opencms.ui.components.OpenCmsTheme; import java.util.Locale; import com.vaadin.server.Resource; import com.vaadin.ui.Button; import com.vaadin.ui.Button.ClickEvent; import com.vaadin.ui.Button.ClickListener; import com.vaadin.ui.Component; import com.vaadin.ui.UI; import com.vaadin.ui.themes.ValoTheme; /** * The default app button provider.<p> */ public class CmsDefaultAppButtonProvider implements I_CmsAppButtonProvider { /** * Creates a properly styled button for the given app.<p> * * @param cms the cms context * @param appConfig the app configuration * @param locale the locale * * @return the button component */ public static Component createAppButton(CmsObject cms, final I_CmsWorkplaceAppConfiguration appConfig, Locale locale) { Button button = createAppIconButton(appConfig, locale); button.addClickListener(new ClickListener() { private static final long serialVersionUID = 1L; public void buttonClick(ClickEvent event) { if ((appConfig instanceof I_CmsHasAppLaunchCommand) && (((I_CmsHasAppLaunchCommand) appConfig).getAppLaunchCommand() != null)) { ((I_CmsHasAppLaunchCommand) appConfig).getAppLaunchCommand().run(); } else { CmsAppWorkplaceUi ui = (CmsAppWorkplaceUi) A_CmsUI.get(); ui.showApp(appConfig); } } }); CmsAppVisibilityStatus status = appConfig.getVisibility(cms); if (!status.isActive()) { button.setEnabled(false); button.setDescription(status.getHelpText()); } else { String helpText = appConfig.getHelpText(locale); button.setDescription(helpText); } return button; } /** * Creates a properly styled button for the given app, without adding a click handler or checking visibility settings.<p> * * @param appConfig the app configuration * @param locale the locale * * @return the button component */ public static Button createAppIconButton(I_CmsWorkplaceAppConfiguration appConfig, Locale locale) { return createIconButton(appConfig.getName(locale), appConfig.getHelpText(locale), appConfig.getIcon(), appConfig.getButtonStyle()); } /** * Creates an icon button.<p> * * @param name the name * @param description the description * @param icon the icon * * @return the created button */ public static Button createIconButton(String name, String description, Resource icon) { return createIconButton(name, description, icon, I_CmsAppButtonProvider.BUTTON_STYLE_TRANSPARENT); } /** * Creates an icon button.<p> * * @param name the name * @param description the description * @param icon the icon * @param buttonStyle the button style * * @return the created button */ public static Button createIconButton(String name, String description, Resource icon, String buttonStyle) { Button button = new Button(name); button.setIcon(icon, name); button.setDescription(description); button.addStyleName(OpenCmsTheme.APP_BUTTON); button.addStyleName(ValoTheme.BUTTON_BORDERLESS); button.addStyleName(ValoTheme.BUTTON_ICON_ALIGN_TOP); button.addStyleName(buttonStyle); return button; } /** * @see org.opencms.ui.apps.I_CmsAppButtonProvider#createAppButton(org.opencms.ui.apps.I_CmsWorkplaceAppConfiguration) */ public Component createAppButton(I_CmsWorkplaceAppConfiguration appConfig) { return createAppButton(A_CmsUI.getCmsObject(), appConfig, UI.getCurrent().getLocale()); } }