1 /* <lambda>null2 * Copyright 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.icons 18 19 import android.content.ComponentName 20 import android.content.Context 21 import android.graphics.Bitmap 22 import android.graphics.drawable.BitmapDrawable 23 import android.graphics.drawable.Drawable 24 import android.os.UserHandle 25 import androidx.collection.LruCache 26 import com.android.intentresolver.Flags.targetHoverAndKeyboardFocusStates 27 import com.android.intentresolver.chooser.DisplayResolveInfo 28 import com.android.intentresolver.chooser.SelectableTargetInfo 29 import java.util.function.Consumer 30 import javax.annotation.concurrent.GuardedBy 31 import javax.inject.Qualifier 32 33 @Qualifier @MustBeDocumented @Retention(AnnotationRetention.BINARY) annotation class Caching 34 35 private typealias IconCache = LruCache<String, Bitmap> 36 37 class CachingTargetDataLoader( 38 private val context: Context, 39 private val targetDataLoader: TargetDataLoader, 40 private val cacheSize: Int = 100, 41 ) : TargetDataLoader { 42 @GuardedBy("self") private val perProfileIconCache = HashMap<UserHandle, IconCache>() 43 44 override fun getOrLoadAppTargetIcon( 45 info: DisplayResolveInfo, 46 userHandle: UserHandle, 47 callback: Consumer<Drawable>, 48 ): Drawable? { 49 val cacheKey = info.toCacheKey() 50 return getCachedAppIcon(cacheKey, userHandle)?.toDrawable() 51 ?: targetDataLoader.getOrLoadAppTargetIcon(info, userHandle) { drawable -> 52 drawable.extractBitmap()?.let { getProfileIconCache(userHandle).put(cacheKey, it) } 53 callback.accept(drawable) 54 } 55 } 56 57 override fun getOrLoadDirectShareIcon( 58 info: SelectableTargetInfo, 59 userHandle: UserHandle, 60 callback: Consumer<Drawable>, 61 ): Drawable? { 62 val cacheKey = info.toCacheKey() 63 return cacheKey?.let { getCachedAppIcon(it, userHandle) }?.toDrawable() 64 ?: targetDataLoader.getOrLoadDirectShareIcon(info, userHandle) { drawable -> 65 if (cacheKey != null) { 66 drawable.extractBitmap()?.let { 67 getProfileIconCache(userHandle).put(cacheKey, it) 68 } 69 } 70 callback.accept(drawable) 71 } 72 } 73 74 override fun loadLabel(info: DisplayResolveInfo, callback: Consumer<LabelInfo>) = 75 targetDataLoader.loadLabel(info, callback) 76 77 override fun getOrLoadLabel(info: DisplayResolveInfo) = targetDataLoader.getOrLoadLabel(info) 78 79 private fun getCachedAppIcon(component: String, userHandle: UserHandle): Bitmap? = 80 getProfileIconCache(userHandle)[component] 81 82 private fun getProfileIconCache(userHandle: UserHandle): IconCache = 83 synchronized(perProfileIconCache) { 84 perProfileIconCache.getOrPut(userHandle) { IconCache(cacheSize) } 85 } 86 87 private fun DisplayResolveInfo.toCacheKey() = 88 ComponentName(resolveInfo.activityInfo.packageName, resolveInfo.activityInfo.name) 89 .flattenToString() 90 91 private fun SelectableTargetInfo.toCacheKey(): String? = 92 if (chooserTargetIcon != null) { 93 // do not cache icons for caller-provided targets 94 null 95 } else { 96 buildString { 97 append(chooserTargetComponentName?.flattenToString() ?: "") 98 append("|") 99 append(directShareShortcutInfo?.id ?: "") 100 } 101 } 102 103 private fun Bitmap.toDrawable(): Drawable { 104 return if (targetHoverAndKeyboardFocusStates()) { 105 HoverBitmapDrawable(this) 106 } else { 107 BitmapDrawable(context.resources, this) 108 } 109 } 110 111 private fun Drawable.extractBitmap(): Bitmap? { 112 return when (this) { 113 is BitmapDrawable -> bitmap 114 is HoverBitmapDrawable -> bitmap 115 else -> null 116 } 117 } 118 } 119