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.components.value;
  
  import java.net.URL;
  import java.util.UUID;
  
  import org.apache.causeway.applib.services.bookmark.idstringifiers.PredefinedSerializables;
  import org.apache.causeway.applib.value.LocalResourcePath;
  import org.apache.causeway.core.metamodel.object.ManagedObject;
  import org.apache.causeway.core.metamodel.object.MmValueUtils;
  import org.apache.causeway.core.metamodel.spec.ObjectSpecification;
  import org.apache.causeway.viewer.wicket.model.models.ValueModel;
  import org.apache.causeway.viewer.wicket.ui.components.attributes.AttributePanel;
  import org.apache.causeway.viewer.wicket.ui.panels.PanelAbstract;
  import org.apache.causeway.viewer.wicket.ui.util.Wkt;
  
  /**
   * Panel for rendering any value types that do not have their own custom
   * {@link AttributePanel panel} to render them.
   */
  class StandaloneValuePanel
  extends PanelAbstract<ManagedObject, ValueModel> {
  
      private static final long serialVersionUID = 1L;
      private static final String ID_STANDALONE_VALUE = "standaloneValue";
  
      public StandaloneValuePanel(final String id, final ValueModel valueModel) {
          super(id, valueModel);
  
          //XXX StandaloneValuePanel has its limitations compared to the ScalarPanel infrastructure,
          // which has better rendering support
          // (we probably need to remove StandaloneValuePanel and utilize the AttributePanel for standalone values instead)
          if(isProbablySimpleInlineHtml(valueModel.elementType())) {
              Wkt.markupAdd(this, ID_STANDALONE_VALUE, ()->
                  MmValueUtils.htmlStringForValueType(
                      getModel().objectMember(),
                      getModel().getObject())
              );
          } else {
              // resort to (textual) title rendering
              Wkt.labelAdd(this, ID_STANDALONE_VALUE, ()->
                  getModel().getObject().getTitle());
          }
      }
  
      // -- HELPER
  
      private boolean isProbablySimpleInlineHtml(final ObjectSpecification valueSpec) {
          var cls = valueSpec.getCorrespondingClass();
  
          return PredefinedSerializables.isPredefinedSerializable(cls)
                  || UUID.class.equals(cls)
                  || URL.class.equals(cls)
                  || LocalResourcePath.class.equals(cls);
      }
  
  }
  