content: /*
   * Copyright (C) 2016 The Android Open Source Project
   *
   * 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 android.webkit;
  
  import android.annotation.Nullable;
  
  /**
   * Base class for clients to capture Service Worker related callbacks,
   * see {@link ServiceWorkerController} for usage example.
   */
  public class ServiceWorkerClient {
  
      /**
       * Notify the host application of a resource request and allow the
       * application to return the data. If the return value is {@code null}, the
       * Service Worker will continue to load the resource as usual.
       * Otherwise, the return response and data will be used.
       *
       * <p class="note"><b>Note:</b> This method is called on a thread other than the UI thread so
       * clients should exercise caution when accessing private data or the view system.
       *
       * @param request Object containing the details of the request.
       * @return A {@link android.webkit.WebResourceResponse} containing the
       *         response information or {@code null} if the WebView should load the
       *         resource itself.
       * @see WebViewClient#shouldInterceptRequest(WebView, WebResourceRequest)
       */
      @Nullable
      public WebResourceResponse shouldInterceptRequest(WebResourceRequest request) {
          return null;
      }
  }
  
  