content: /*
   * Copyright (C) 2014 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 com.android.ex.camera2.utils;
  
  import android.hardware.camera2.CameraCaptureSession;
  import android.hardware.camera2.CameraCaptureSession.CaptureCallback;
  import android.hardware.camera2.CaptureFailure;
  import android.hardware.camera2.CaptureRequest;
  import android.hardware.camera2.CaptureResult;
  import android.hardware.camera2.TotalCaptureResult;
  import android.os.Handler;
  
  /**
   * Proxy that forwards all updates to another {@link CaptureCallback}, invoking
   * its callbacks on a separate {@link Handler}.
   */
  public class Camera2CaptureCallbackForwarder extends CaptureCallback {
      private CaptureCallback mListener;
      private Handler mHandler;
  
      public Camera2CaptureCallbackForwarder(CaptureCallback listener, Handler handler) {
          mListener = listener;
          mHandler = handler;
      }
  
      @Override
      public void onCaptureCompleted(final CameraCaptureSession session, final CaptureRequest request,
                                     final TotalCaptureResult result) {
          mHandler.post(new Runnable() {
              @Override
              public void run() {
                  mListener.onCaptureCompleted(session, request, result);
              }});
      }
  
      @Override
      public void onCaptureFailed(final CameraCaptureSession session, final CaptureRequest request,
                                  final CaptureFailure failure) {
          mHandler.post(new Runnable() {
              @Override
              public void run() {
                  mListener.onCaptureFailed(session, request, failure);
              }});
      }
  
      @Override
      public void onCaptureProgressed(final CameraCaptureSession session,
                                      final CaptureRequest request,
                                      final CaptureResult partialResult) {
          mHandler.post(new Runnable() {
              @Override
              public void run() {
                  mListener.onCaptureProgressed(session, request, partialResult);
              }});
      }
  
      @Override
      public void onCaptureSequenceAborted(final CameraCaptureSession session, final int sequenceId) {
          mHandler.post(new Runnable() {
              @Override
              public void run() {
                  mListener.onCaptureSequenceAborted(session, sequenceId);
              }});
      }
  
      @Override
      public void onCaptureSequenceCompleted(final CameraCaptureSession session, final int sequenceId,
                                             final long frameNumber) {
          mHandler.post(new Runnable() {
              @Override
              public void run() {
                  mListener.onCaptureSequenceCompleted(session, sequenceId, frameNumber);
              }});
      }
  
      @Override
      public void onCaptureStarted(final CameraCaptureSession session, final CaptureRequest request,
                                   final long timestamp, final long frameNumber) {
          mHandler.post(new Runnable() {
              @Override
              public void run() {
                  mListener.onCaptureStarted(session, request, timestamp, frameNumber);
              }});
      }
  }
  