1 /*
2  * Copyright 2023 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 androidx.camera.camera2.pipe.integration.compat.workaround
18 
19 import androidx.camera.camera2.pipe.integration.compat.quirk.CameraQuirks
20 import androidx.camera.camera2.pipe.integration.compat.quirk.UseTorchAsFlashQuirk
21 import dagger.Module
22 import dagger.Provides
23 
24 /**
25  * Workaround to use torch as flash.
26  *
27  * @see UseTorchAsFlashQuirk
28  */
29 public interface UseTorchAsFlash {
shouldUseTorchAsFlashnull30     public fun shouldUseTorchAsFlash(): Boolean
31 
32     @Module
33     public abstract class Bindings {
34         public companion object {
35             @Provides
36             public fun provideUseTorchAsFlash(cameraQuirks: CameraQuirks): UseTorchAsFlash =
37                 if (cameraQuirks.quirks.contains(UseTorchAsFlashQuirk::class.java))
38                     UseTorchAsFlashImpl
39                 else NotUseTorchAsFlash
40         }
41     }
42 }
43 
44 public object UseTorchAsFlashImpl : UseTorchAsFlash {
45     /** Returns true for torch should be used as flash. */
shouldUseTorchAsFlashnull46     override fun shouldUseTorchAsFlash(): Boolean = true
47 }
48 
49 public object NotUseTorchAsFlash : UseTorchAsFlash {
50     override fun shouldUseTorchAsFlash(): Boolean = false
51 }
52