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.appwidget;
  
  import android.os.Parcel;
  import android.os.Parcelable;
  import android.widget.RemoteViews;
  
  /**
   * @hide
   */
  public class PendingHostUpdate implements Parcelable {
  
      static final int TYPE_VIEWS_UPDATE = 0;
      static final int TYPE_PROVIDER_CHANGED = 1;
      static final int TYPE_VIEW_DATA_CHANGED = 2;
  
      final int appWidgetId;
      final int type;
      RemoteViews views;
      AppWidgetProviderInfo widgetInfo;
      int viewId;
  
      public static PendingHostUpdate updateAppWidget(int appWidgetId, RemoteViews views) {
          PendingHostUpdate update = new PendingHostUpdate(appWidgetId, TYPE_VIEWS_UPDATE);
          update.views = views;
          return update;
      }
  
      public static PendingHostUpdate providerChanged(int appWidgetId, AppWidgetProviderInfo info) {
          PendingHostUpdate update = new PendingHostUpdate(appWidgetId, TYPE_PROVIDER_CHANGED);
          update.widgetInfo = info;
          return update;
      }
  
      public static PendingHostUpdate viewDataChanged(int appWidgetId, int viewId) {
          PendingHostUpdate update = new PendingHostUpdate(appWidgetId, TYPE_VIEW_DATA_CHANGED);
          update.viewId = viewId;
          return update;
      }
  
      private PendingHostUpdate(int appWidgetId, int type) {
          this.appWidgetId = appWidgetId;
          this.type = type;
      }
  
      private PendingHostUpdate(Parcel in) {
          appWidgetId = in.readInt();
          type = in.readInt();
  
          switch (type) {
              case TYPE_VIEWS_UPDATE:
                  if (0 != in.readInt()) {
                      views = new RemoteViews(in);
                  }
                  break;
              case TYPE_PROVIDER_CHANGED:
                  if (0 != in.readInt()) {
                      widgetInfo = new AppWidgetProviderInfo(in);
                  }
                  break;
              case TYPE_VIEW_DATA_CHANGED:
                  viewId = in.readInt();
          }
      }
  
      @Override
      public int describeContents() {
          return 0;
      }
  
      @Override
      public void writeToParcel(Parcel dest, int flags) {
          dest.writeInt(appWidgetId);
          dest.writeInt(type);
          switch (type) {
              case TYPE_VIEWS_UPDATE:
                  writeNullParcelable(views, dest, flags);
                  break;
              case TYPE_PROVIDER_CHANGED:
                  writeNullParcelable(widgetInfo, dest, flags);
                  break;
              case TYPE_VIEW_DATA_CHANGED:
                  dest.writeInt(viewId);
                  break;
          }
      }
  
      private void writeNullParcelable(Parcelable p, Parcel dest, int flags) {
          if (p != null) {
              dest.writeInt(1);
              p.writeToParcel(dest, flags);
          } else {
              dest.writeInt(0);
          }
      }
  
      /**
       * Parcelable.Creator that instantiates PendingHostUpdate objects
       */
      public static final @android.annotation.NonNull Parcelable.Creator<PendingHostUpdate> CREATOR
              = new Parcelable.Creator<PendingHostUpdate>() {
          public PendingHostUpdate createFromParcel(Parcel parcel) {
              return new PendingHostUpdate(parcel);
          }
  
          public PendingHostUpdate[] newArray(int size) {
              return new PendingHostUpdate[size];
          }
      };
  }
  