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.extensions.pdfjs.wkt.integration.components;
  
  import org.apache.wicket.markup.head.IHeaderResponse;
  import org.apache.wicket.markup.html.WebComponent;
  import org.apache.wicket.markup.html.panel.Panel;
  
  import org.apache.causeway.extensions.pdfjs.applib.config.PdfJsConfig;
  import org.apache.causeway.extensions.pdfjs.wkt.integration.res.PdfJsCmapsReference;
  import org.apache.causeway.extensions.pdfjs.wkt.integration.res.PdfJsIntegrationReference;
  import org.apache.causeway.extensions.pdfjs.wkt.integration.res.PdfJsReference;
  import org.apache.causeway.extensions.pdfjs.wkt.integration.res.PdfJsWorkerReference;
  import org.apache.causeway.viewer.wicket.ui.util.Wkt;
  
  import org.jspecify.annotations.NonNull;
  
  /**
   * A panel for rendering PDF documents inline in the page
   */
  public class PdfJsPanel extends Panel {
  
      private static final long serialVersionUID = 1L;
  
      private final static String ID_PDFJSCANVAS = "pdfJsCanvas";
  
      private PdfJsConfig config;
  
      /**
       * Constructor.
       *
       * @param id The component id
       */
      public PdfJsPanel(final String id, final @NonNull PdfJsConfig config) {
          super(id);
  
          var pdfJsCanvas = Wkt.add(this, Wkt.ajaxEnable(new WebComponent(ID_PDFJSCANVAS)));
  
          this.config = config
                  .withWorkerUrl(PdfJsWorkerReference.workerUrl())
                  .withCmapsUrl(PdfJsCmapsReference.cmapsUrl())
                  .withCanvasId(pdfJsCanvas.getMarkupId());
      }
  
      @Override
      public void renderHead(final IHeaderResponse response) {
          super.renderHead(response);
  
          response.render(PdfJsReference.asHeaderItem());
          response.render(PdfJsIntegrationReference.asHeaderItem());
          response.render(PdfJsIntegrationReference.domReadyScript(config));
      }
  
      public CharSequence getCanvasId() {
          return config.getCanvasId();
      }
  
  }
  