content: /**
   *   Copyright 2012-2019 Wicked Charts (http://github.com/adessoAG/wicked-charts)
   *
   *   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.adesso.wickedcharts.wicket7.highcharts.features.interaction;
  
  import de.adesso.wickedcharts.highcharts.options.Options;
  import de.adesso.wickedcharts.highcharts.options.interaction.InteractionEvent;
  import de.adesso.wickedcharts.highcharts.options.interaction.InteractionFunction;
  import de.adesso.wickedcharts.highcharts.options.processing.IOptionsProcessor;
  import de.adesso.wickedcharts.highcharts.options.processing.OptionsProcessorContext;
  import de.adesso.wickedcharts.wicket7.highcharts.Chart;
  import org.apache.wicket.ajax.AjaxRequestTarget;
  
  import java.io.Serializable;
  import java.util.List;
  
  /**
   * {@link IOptionsProcessor} enabling the Client/Server Interaction for Wicket
   * 6.
   *
   * @author Tom Hombergs (tom.hombergs@gmail.com)
   */
  public class InteractionProcessor implements IOptionsProcessor, Serializable {
  
      private final Chart chart;
  
      public InteractionProcessor(final Chart chart) {
          this.chart = chart;
      }
  
      @Override
      public void processOptions(final Options options, final OptionsProcessorContext context) {
  
          List<InteractionFunction> functions = context.getInteractionFunctions();
          for (final InteractionFunction function : functions) {
  
              // add server side AJAX event
              InteractionBehavior interactionBehavior = new InteractionBehavior() {
                  @Override
                  public void onEvent(final InteractionEvent event, final AjaxRequestTarget target) {
                      WicketInteractionEvent wicketEvent = new WicketInteractionEvent(target, event);
                      function.onInteraction(wicketEvent);
                  }
              };
              this.chart.add(interactionBehavior);
  
              // add client side javascript to trigger an AJAX call
              String functionBody = interactionBehavior.getCallbackScript().toString();
              function.setFunction(functionBody);
          }
      }
  
  }
  