1/*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.ex.camera2.utils;
18
19import android.hardware.camera2.CameraCaptureSession;
20import android.hardware.camera2.CameraCaptureSession.CaptureCallback;
21import android.hardware.camera2.CaptureFailure;
22import android.hardware.camera2.CaptureRequest;
23import android.hardware.camera2.CaptureResult;
24import android.hardware.camera2.TotalCaptureResult;
25import android.os.Handler;
26
27/**
28 * Proxy that forwards all updates to another {@link CaptureCallback}, invoking
29 * its callbacks on a separate {@link Handler}.
30 */
31public class Camera2CaptureCallbackForwarder extends CaptureCallback {
32    private CaptureCallback mListener;
33    private Handler mHandler;
34
35    public Camera2CaptureCallbackForwarder(CaptureCallback listener, Handler handler) {
36        mListener = listener;
37        mHandler = handler;
38    }
39
40    @Override
41    public void onCaptureCompleted(final CameraCaptureSession session, final CaptureRequest request,
42                                   final TotalCaptureResult result) {
43        mHandler.post(new Runnable() {
44            @Override
45            public void run() {
46                mListener.onCaptureCompleted(session, request, result);
47            }});
48    }
49
50    @Override
51    public void onCaptureFailed(final CameraCaptureSession session, final CaptureRequest request,
52                                final CaptureFailure failure) {
53        mHandler.post(new Runnable() {
54            @Override
55            public void run() {
56                mListener.onCaptureFailed(session, request, failure);
57            }});
58    }
59
60    @Override
61    public void onCaptureProgressed(final CameraCaptureSession session,
62                                    final CaptureRequest request,
63                                    final CaptureResult partialResult) {
64        mHandler.post(new Runnable() {
65            @Override
66            public void run() {
67                mListener.onCaptureProgressed(session, request, partialResult);
68            }});
69    }
70
71    @Override
72    public void onCaptureSequenceAborted(final CameraCaptureSession session, final int sequenceId) {
73        mHandler.post(new Runnable() {
74            @Override
75            public void run() {
76                mListener.onCaptureSequenceAborted(session, sequenceId);
77            }});
78    }
79
80    @Override
81    public void onCaptureSequenceCompleted(final CameraCaptureSession session, final int sequenceId,
82                                           final long frameNumber) {
83        mHandler.post(new Runnable() {
84            @Override
85            public void run() {
86                mListener.onCaptureSequenceCompleted(session, sequenceId, frameNumber);
87            }});
88    }
89
90    @Override
91    public void onCaptureStarted(final CameraCaptureSession session, final CaptureRequest request,
92                                 final long timestamp, final long frameNumber) {
93        mHandler.post(new Runnable() {
94            @Override
95            public void run() {
96                mListener.onCaptureStarted(session, request, timestamp, frameNumber);
97            }});
98    }
99}
100