1 /*
2  * Copyright (C) 2015 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 
17 package com.android.camera.one.v2.photo;
18 
19 import android.hardware.camera2.CameraAccessException;
20 
21 import com.android.camera.async.Updatable;
22 import com.android.camera.debug.Log;
23 import com.android.camera.debug.Logger;
24 import com.android.camera.one.OneCamera;
25 import com.android.camera.one.v2.camera2proxy.CameraCaptureSessionClosedException;
26 import com.android.camera.one.v2.core.ResourceAcquisitionFailedException;
27 import com.android.camera.one.v2.imagesaver.ImageSaver;
28 import com.google.common.base.Supplier;
29 
30 import javax.annotation.ParametersAreNonnullByDefault;
31 
32 @ParametersAreNonnullByDefault
33 final class FlashBasedPhotoCommand implements ImageCaptureCommand {
34     private final Logger mLog;
35     private final Supplier<OneCamera.PhotoCaptureParameters.Flash> mFlashMode;
36     private final ImageCaptureCommand mFlashOnCommand;
37     private final ImageCaptureCommand mFlashAutoCommand;
38     private final ImageCaptureCommand mFlashOffCommand;
39 
FlashBasedPhotoCommand(Logger.Factory logFactory, Supplier<OneCamera.PhotoCaptureParameters.Flash> flashMode, ImageCaptureCommand flashOnCommand, ImageCaptureCommand flashAutoCommand, ImageCaptureCommand flashOffCommand)40     FlashBasedPhotoCommand(Logger.Factory logFactory,
41             Supplier<OneCamera.PhotoCaptureParameters.Flash> flashMode,
42             ImageCaptureCommand flashOnCommand,
43             ImageCaptureCommand flashAutoCommand,
44             ImageCaptureCommand flashOffCommand) {
45         mLog = logFactory.create(new Log.Tag("FlashBasedPhotoCmd"));
46         mFlashMode = flashMode;
47         mFlashOnCommand = flashOnCommand;
48         mFlashAutoCommand = flashAutoCommand;
49         mFlashOffCommand = flashOffCommand;
50     }
51 
52     @Override
run(Updatable<Void> imageExposeCallback, ImageSaver imageSaver)53     public void run(Updatable<Void> imageExposeCallback, ImageSaver imageSaver)
54             throws InterruptedException, CameraAccessException,
55             CameraCaptureSessionClosedException,
56             ResourceAcquisitionFailedException {
57         OneCamera.PhotoCaptureParameters.Flash flashMode = mFlashMode.get();
58         if (flashMode == OneCamera.PhotoCaptureParameters.Flash.ON) {
59             mLog.i("running flash-on command: " + mFlashOnCommand);
60             mFlashOnCommand.run(imageExposeCallback, imageSaver);
61         } else if (flashMode == OneCamera.PhotoCaptureParameters.Flash.AUTO) {
62             mLog.i("running flash-auto command: " + mFlashAutoCommand);
63             mFlashAutoCommand.run(imageExposeCallback, imageSaver);
64         } else {
65             mLog.i("running flash-off command: " + mFlashOffCommand);
66             mFlashOffCommand.run(imageExposeCallback, imageSaver);
67         }
68     }
69 }
70