Java tutorial
/* * Copyright (C) 2013 lichtflut Forschungs- und Entwicklungsgesellschaft mbH * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package de.lichtflut.glasnost.is.components.devops.items; import static de.lichtflut.rb.webck.behaviors.ConditionalBehavior.visibleIf; import static de.lichtflut.rb.webck.models.ConditionalModel.isTrue; import java.util.List; import org.apache.wicket.ajax.AjaxRequestTarget; import org.apache.wicket.ajax.IAjaxCallDecorator; import org.apache.wicket.ajax.markup.html.AjaxLink; import org.apache.wicket.markup.ComponentTag; import org.apache.wicket.markup.html.WebMarkupContainer; import org.apache.wicket.markup.html.basic.Label; import org.apache.wicket.markup.html.link.Link; import org.apache.wicket.markup.html.list.ListItem; import org.apache.wicket.markup.html.list.ListView; import org.apache.wicket.markup.html.panel.Panel; import org.apache.wicket.model.IModel; import org.apache.wicket.model.LoadableDetachableModel; import org.apache.wicket.model.Model; import org.apache.wicket.model.PropertyModel; import org.apache.wicket.model.util.ListModel; import org.apache.wicket.request.mapper.parameter.PageParameters; import org.apache.wicket.spring.injection.annot.SpringBean; import de.lichtflut.glasnost.is.model.logic.PerceptionItem; import de.lichtflut.glasnost.is.pages.DevOpsItemPage; import de.lichtflut.rb.application.common.CommonParams; import de.lichtflut.rb.core.entity.RBEntity; import de.lichtflut.rb.core.entity.RBField; import de.lichtflut.rb.core.services.EntityManager; import de.lichtflut.rb.webck.common.DisplayMode; import de.lichtflut.rb.webck.common.RBAjaxTarget; import de.lichtflut.rb.webck.components.common.TypedPanel; import de.lichtflut.rb.webck.components.entity.quickinfo.QuickInfoPanel; import de.lichtflut.rb.webck.events.AjaxCancelEventBubbleCallDecorator; import de.lichtflut.rb.webck.models.basic.DerivedDetachableModel; /** * <p> * Panel displaying a PerceptionItem with it's quick-info, if available. * <p> * Additionally it's possible to expand this item and show a list of all sub items. * </p> * </p> * * <p> * Created 29.11.12 * </p> * * @author Oliver Tigges */ public class DevOpsItemPanel extends TypedPanel<PerceptionItem> { @SpringBean private EntityManager entityManager; private final IModel<Boolean> expanded; // ---------------- Constructor ------------------------- /** * Constructor. * * @param id The component ID. * @param model The model. */ public DevOpsItemPanel(final String id, final IModel<PerceptionItem> model) { super(id, model); expanded = new Model<Boolean>(false); addTitleComponents(model); addInfo("container", model); setOutputMarkupId(true); } // ------------------------------------------------------ private void addTitleComponents(final IModel<PerceptionItem> model) { Link<?> detailsLink = new Link<Void>("detailsLink") { @Override public void onClick() { PageParameters parameters = new PageParameters(); parameters.add(CommonParams.PARAM_RESOURCE_ID, model.getObject().getQualifiedName()); parameters.add(DisplayMode.PARAMETER, DisplayMode.VIEW); setResponsePage(DevOpsItemPage.class, parameters); } }; detailsLink.add(new Label("linkLabel", new PropertyModel<String>(model, "name"))); add(detailsLink); addMoreLink("more", model); } /** * Adds an Ajaxlink to fold/unfold further info */ private void addMoreLink(final String id, final IModel<PerceptionItem> model) { final IModel<String> labelModel = new Model<String>(" "); AjaxLink<String> moreLink = new AjaxLink<String>(id) { @Override public void onClick(final AjaxRequestTarget target) { if (Boolean.TRUE == expanded.getObject()) { expanded.setObject(false); // labelModel.setObject("+"); } else { expanded.setObject(true); // labelModel.setObject("-"); } RBAjaxTarget.add(DevOpsItemPanel.this); } @Override protected IAjaxCallDecorator getAjaxCallDecorator() { return new AjaxCancelEventBubbleCallDecorator(); } @Override protected void onComponentTag(final ComponentTag tag) { super.onComponentTag(tag); if (Boolean.TRUE == expanded.getObject()) { tag.put("class", "devops-fold-action fold"); } else { tag.put("class", "devops-fold-action unfold"); } } }; moreLink.add(new Label("linkLabel", labelModel)); add(moreLink); } private void addInfo(final String id, final IModel<PerceptionItem> model) { WebMarkupContainer container = new WebMarkupContainer("container"); addQuickInfo("quickInfo", model, container); container.add(visibleIf(isTrue(expanded))); addListView("subItems", model, container); add(container); } private void addQuickInfo(final String string, final IModel<PerceptionItem> model, final WebMarkupContainer container) { IModel<RBEntity> rbEntity = new LoadableDetachableModel<RBEntity>() { @Override protected RBEntity load() { return entityManager.find(model.getObject()); } }; Panel infoPanel = new QuickInfoPanel("infoPanel", new ListModel<RBField>(rbEntity.getObject().getQuickInfo())); container.add(infoPanel); } private void addListView(final String id, final IModel<PerceptionItem> model, final WebMarkupContainer container) { ListView<PerceptionItem> view = new ListView<PerceptionItem>(id, getSubItems(model)) { @Override protected void populateItem(final ListItem<PerceptionItem> item) { item.add(new DevOpsItemPanel("item", item.getModel())); } }; view.add(visibleIf(isTrue(expanded))); container.add(view); } // ------------------------------------------------------ private IModel<List<PerceptionItem>> getSubItems(final IModel<PerceptionItem> parent) { return new DerivedDetachableModel<List<PerceptionItem>, PerceptionItem>(parent) { @Override protected List<PerceptionItem> derive(final PerceptionItem parent) { return parent.getSubItems(); } }; } }