content: /*
   *  Licensed to the Apache Software Foundation (ASF) under one
   *  or more contributor license agreements.  See the NOTICE file
   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF licenses this file
   *  to you 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 org.apache.causeway.viewer.wicket.ui.pages.home;
  
  import org.apache.wicket.authroles.authorization.strategies.role.annotations.AuthorizeInstantiation;
  import org.apache.wicket.request.cycle.RequestCycle;
  import org.apache.wicket.request.mapper.parameter.PageParameters;
  
  import org.apache.causeway.applib.services.message.MessageService;
  import org.apache.causeway.applib.services.user.UserMemento;
  import org.apache.causeway.core.metamodel.object.ManagedObjects;
  import org.apache.causeway.viewer.commons.model.components.UiComponentType;
  import org.apache.causeway.viewer.wicket.ui.components.widgets.breadcrumbs.BreadcrumbModelProvider;
  import org.apache.causeway.viewer.wicket.ui.pages.PageAbstract;
  import org.apache.causeway.viewer.wicket.ui.pages.obj.DomainObjectPage;
  import org.apache.causeway.viewer.wicket.ui.util.WktComponents;
  
  /**
   * Web page representing the home page (showing a welcome message).
   */
  @AuthorizeInstantiation(UserMemento.AUTHORIZED_USER_ROLE)
  public class HomePage extends PageAbstract {
  
      private static final long serialVersionUID = 1L;
  
      public HomePage(final PageParameters parameters) {
          super(parameters, null);
  
          addChildComponents(themeDiv, null);
          buildGui();
  
          addBookmarkedPages(themeDiv);
      }
  
      private void buildGui() {
  
          if(super.getPageParameters() == null) {
              super.getMetaModelContext().lookupServiceElseFail(MessageService.class)
              .informUser("Page timeout");
          }
  
          var homePageAdapter = super.getMetaModelContext().getHomePageAdapter();
  
          if(ManagedObjects.isNullOrUnspecifiedOrEmpty(homePageAdapter)) {
              WktComponents.permanentlyHide(themeDiv, UiComponentType.ACTION_PROMPT);
              getComponentFactoryRegistry().addOrReplaceComponent(themeDiv, UiComponentType.WELCOME, null);
          } else {
              var requestCycle = RequestCycle.get();
              var page = DomainObjectPage.forAdapter(homePageAdapter);
              requestCycle.setResponsePage(page);
          }
  
          var breadcrumbModelProvider = (BreadcrumbModelProvider) getSession();
          var breadcrumbModel = breadcrumbModelProvider.getBreadcrumbModel();
          breadcrumbModel.visitedHomePage();
      }
  
  }
  