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.media.browse;
  
  import android.os.Bundle;
  
  /**
   * @hide
   */
  public class MediaBrowserUtils {
      /**
       * Compares whether two bundles are the same.
       */
      public static boolean areSameOptions(Bundle options1, Bundle options2) {
          if (options1 == options2) {
              return true;
          } else if (options1 == null) {
              return options2.getInt(MediaBrowser.EXTRA_PAGE, -1) == -1
                      && options2.getInt(MediaBrowser.EXTRA_PAGE_SIZE, -1) == -1;
          } else if (options2 == null) {
              return options1.getInt(MediaBrowser.EXTRA_PAGE, -1) == -1
                      && options1.getInt(MediaBrowser.EXTRA_PAGE_SIZE, -1) == -1;
          } else {
              return options1.getInt(MediaBrowser.EXTRA_PAGE, -1)
                      == options2.getInt(MediaBrowser.EXTRA_PAGE, -1)
                      && options1.getInt(MediaBrowser.EXTRA_PAGE_SIZE, -1)
                      == options2.getInt(MediaBrowser.EXTRA_PAGE_SIZE, -1);
          }
      }
  
      /**
       * Returnes true if the page options has duplicated items.
       */
      public static boolean hasDuplicatedItems(Bundle options1, Bundle options2) {
          int page1 = options1 == null ? -1 : options1.getInt(MediaBrowser.EXTRA_PAGE, -1);
          int page2 = options2 == null ? -1 : options2.getInt(MediaBrowser.EXTRA_PAGE, -1);
          int pageSize1 = options1 == null ? -1 : options1.getInt(MediaBrowser.EXTRA_PAGE_SIZE, -1);
          int pageSize2 = options2 == null ? -1 : options2.getInt(MediaBrowser.EXTRA_PAGE_SIZE, -1);
  
          int startIndex1, startIndex2, endIndex1, endIndex2;
          if (page1 == -1 || pageSize1 == -1) {
              startIndex1 = 0;
              endIndex1 = Integer.MAX_VALUE;
          } else {
              startIndex1 = pageSize1 * page1;
              endIndex1 = startIndex1 + pageSize1 - 1;
          }
  
          if (page2 == -1 || pageSize2 == -1) {
              startIndex2 = 0;
              endIndex2 = Integer.MAX_VALUE;
          } else {
              startIndex2 = pageSize2 * page2;
              endIndex2 = startIndex2 + pageSize2 - 1;
          }
  
          if (startIndex1 <= startIndex2 && startIndex2 <= endIndex1) {
              return true;
          } else if (startIndex1 <= endIndex2 && endIndex2 <= endIndex1) {
              return true;
          }
          return false;
      }
  }
  