content: /*
   * Copyright (C) 2018 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.view.contentcapture;
  
  import android.annotation.NonNull;
  import android.annotation.Nullable;
  import android.view.autofill.AutofillId;
  import android.view.contentcapture.ViewNode.ViewStructureImpl;
  
  /**
   * A session that is explicitly created by the app (and hence is a descendant of
   * {@link MainContentCaptureSession}).
   *
   * @hide
   */
  final class ChildContentCaptureSession extends ContentCaptureSession {
  
      @NonNull
      private final ContentCaptureSession mParent;
  
      /** @hide */
      protected ChildContentCaptureSession(@NonNull ContentCaptureSession parent,
              @NonNull ContentCaptureContext clientContext) {
          super(clientContext);
          mParent = parent;
      }
  
      @Override
      MainContentCaptureSession getMainCaptureSession() {
          if (mParent instanceof MainContentCaptureSession) {
              return (MainContentCaptureSession) mParent;
          }
          return mParent.getMainCaptureSession();
      }
  
      @Override
      ContentCaptureSession newChild(@NonNull ContentCaptureContext clientContext) {
          final ContentCaptureSession child = new ChildContentCaptureSession(this, clientContext);
          getMainCaptureSession().notifyChildSessionStarted(mId, child.mId, clientContext);
          return child;
      }
  
      @Override
      void flush(@FlushReason int reason) {
          mParent.flush(reason);
      }
  
      @Override
      public void updateContentCaptureContext(@Nullable ContentCaptureContext context) {
          getMainCaptureSession().notifyContextUpdated(mId, context);
      }
  
      @Override
      void onDestroy() {
          getMainCaptureSession().notifyChildSessionFinished(mParent.mId, mId);
      }
  
      @Override
      void internalNotifyViewAppeared(@NonNull ViewStructureImpl node) {
          getMainCaptureSession().notifyViewAppeared(mId, node);
      }
  
      @Override
      void internalNotifyViewDisappeared(@NonNull AutofillId id) {
          getMainCaptureSession().notifyViewDisappeared(mId, id);
      }
  
      @Override
      void internalNotifyViewTextChanged(@NonNull AutofillId id, @Nullable CharSequence text) {
          getMainCaptureSession().notifyViewTextChanged(mId, id, text);
      }
  
      @Override
      public void internalNotifyViewTreeEvent(boolean started) {
          getMainCaptureSession().notifyViewTreeEvent(mId, started);
      }
  
      @Override
      boolean isContentCaptureEnabled() {
          return getMainCaptureSession().isContentCaptureEnabled();
      }
  }
  