Java tutorial
/******************************************************************************* * Copyright (c) 2010-2014 SAP AG and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * SAP AG - initial API and implementation *******************************************************************************/ package org.eclipse.skalli.view.ext.impl.internal.infobox; import org.eclipse.skalli.commons.Link; import org.eclipse.skalli.model.Project; import org.eclipse.skalli.model.ext.linkgroups.LinkGroup; import org.eclipse.skalli.model.ext.linkgroups.LinkGroupsProjectExt; import org.eclipse.skalli.view.ext.ExtensionUtil; import org.eclipse.skalli.view.ext.InfoBox; import org.eclipse.skalli.view.ext.InfoBoxBase; import com.vaadin.terminal.ExternalResource; import com.vaadin.ui.Component; import com.vaadin.ui.CssLayout; import com.vaadin.ui.Label; import com.vaadin.ui.Layout; public class ProjectLinkGroupsBox extends InfoBoxBase implements InfoBox { protected static final String SYTLE_LINKGROUPS_INFOBOX = "infobox-linkgroups"; //$NON-NLS-1$ protected static final String STYLE_LABEL_GROUP = "grouplabel"; //$NON-NLS-1$ protected static final String STYLE_LABEL_LINK = "linklabel"; //$NON-NLS-1$ @Override public String getIconPath() { return "res/icons/link.png"; //$NON-NLS-1$ } @Override public String getCaption() { return "Additional Links"; } @Override public String getShortName() { return "linkgroups"; } @Override public Component getContent(Project project, ExtensionUtil util) { Layout layout = new CssLayout(); layout.addStyleName(SYTLE_LINKGROUPS_INFOBOX); layout.setSizeFull(); LinkGroupsProjectExt ext = project.getExtension(LinkGroupsProjectExt.class); if (ext != null && !ext.getLinkGroups().isEmpty()) { for (LinkGroup linkGroup : ext.getLinkGroups()) { Label linkGroupHeaderLabel = new Label(linkGroup.getCaption()); linkGroupHeaderLabel.addStyleName(STYLE_LABEL_GROUP); layout.addComponent(linkGroupHeaderLabel); for (Link link : linkGroup.getItems()) { com.vaadin.ui.Link uiLink = new com.vaadin.ui.Link(link.getLabel(), new ExternalResource(link.getUrl())); uiLink.setDescription(link.getUrl()); uiLink.addStyleName(STYLE_LABEL_LINK); uiLink.setTargetName("_blank"); //$NON-NLS-1$ layout.addComponent(uiLink); } } } return layout; } @Override public float getPositionWeight() { return 2.0f; } @Override public int getPreferredColumn() { return COLUMN_WEST; } @Override public boolean isVisible(Project project, String loggedInUserId) { LinkGroupsProjectExt ext = project.getExtension(LinkGroupsProjectExt.class); if (ext == null || ext.getLinkGroups().isEmpty()) { return false; } else { return true; } } }