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.applib.mixins.system;
  
  import jakarta.inject.Inject;
  
  import org.apache.causeway.applib.annotation.Action;
  import org.apache.causeway.applib.annotation.ActionLayout;
  import org.apache.causeway.applib.annotation.MemberSupport;
  import org.apache.causeway.applib.annotation.Publishing;
  import org.apache.causeway.applib.annotation.SemanticsOf;
  import org.apache.causeway.applib.services.bookmark.BookmarkService;
  import org.apache.causeway.applib.services.bookmark.HasTarget;
  import org.apache.causeway.applib.services.message.MessageService;
  import org.apache.causeway.applib.services.metamodel.BeanSort;
  import org.apache.causeway.applib.services.metamodel.MetaModelService;
  
  import lombok.RequiredArgsConstructor;
  
  /**
   * Provides the ability to navigate to a domain object from a
   * {@link DomainChangeRecord} which only holds the domain object by way of
   * a {@link DomainChangeRecord#getTarget() target}
   * {@link org.apache.causeway.applib.services.bookmark.Bookmark}.
   *
   * @since v2.0 {@index}
   */
  @Action(
          commandPublishing = Publishing.DISABLED,
          executionPublishing = Publishing.DISABLED,
          semantics = SemanticsOf.SAFE
  )
  @ActionLayout(named = "Open", associateWith = "target", sequence = "1")
  @RequiredArgsConstructor
  public class HasTarget_openTargetObject {
  
      private final HasTarget hasTarget;
  
      @MemberSupport public Object act() {
          try {
              return bookmarkService != null
                      ? bookmarkService.lookup(hasTarget.getTarget()).orElse(null)
                      : null;
          } catch(RuntimeException ex) {
              if(ex.getClass().getName().contains("ObjectNotFoundException")) {
                  messageService.warnUser("Object not found - has it since been deleted?");
                  return null;
              }
              throw ex;
          }
      }
  
      @MemberSupport public boolean hideAct() {
          return hasTarget.getTarget() == null;
      }
  
      @MemberSupport public String disableAct() {
          final Object targetObject = hasTarget.getTarget();
          if (targetObject == null) {
              return null;
          }
          final BeanSort sortOfObject = metaModelService.sortOf(hasTarget.getTarget(), MetaModelService.Mode.RELAXED);
          return !(sortOfObject.isViewModel() || sortOfObject.isEntity())
                  ? "Can only open view models or entities"
                  : null;
      }
  
      @Inject BookmarkService bookmarkService;
      @Inject MessageService messageService;
      @Inject MetaModelService metaModelService;
  
  }
  