1 /*
2  * Copyright (C) 2024 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.intentresolver.contentpreview
18 
19 import android.content.ContentResolver
20 import android.graphics.Bitmap
21 import android.net.Uri
22 import android.util.Size
23 import javax.inject.Inject
24 
25 /** Interface for objects that can attempt load a [Bitmap] from a [Uri]. */
26 interface ThumbnailLoader : suspend (Uri) -> Bitmap?
27 
28 /** Default implementation of [ThumbnailLoader]. */
29 class ThumbnailLoaderImpl
30 @Inject
31 constructor(
32     private val contentResolver: ContentResolver,
33     @ThumbnailSize thumbnailSize: Int,
34 ) : ThumbnailLoader {
35 
36     private val size = Size(thumbnailSize, thumbnailSize)
37 
invokenull38     override suspend fun invoke(uri: Uri): Bitmap =
39         contentResolver.loadThumbnail(uri, size, /* signal = */ null)
40 }
41