Fix crash on page loading

Currently translated at 100.0% (323 of 323 strings)

Co-authored-by: lowak <lowak@pm.me>
Translate-URL: https://hosted.weblate.org/projects/kotatsu/strings/sv/
Translation: Kotatsu/Strings

.editorconfig

@@ -15,5 +15,6 @@ disabled_rules=no-wildcard-imports,no-unused-imports
 ij_continuation_indent_size = 4
 
 [{*.kt,*.kts}]
+ij_kotlin_allow_trailing_comma_on_call_site = true
 ij_kotlin_allow_trailing_comma = true
 ij_kotlin_code_style_defaults = KOTLIN_OFFICIAL

.gitignore

@@ -11,6 +11,7 @@
 /.idea/navEditor.xml
 /.idea/assetWizardSettings.xml
 /.idea/kotlinScripting.xml
+/.idea/kotlinc.xml
 /.idea/deploymentTargetDropDown.xml
 /.idea/androidTestResultsUserPreferences.xml
 /.idea/render.experimental.xml

.idea/compiler.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="CompilerConfiguration">
-    <bytecodeTargetLevel target="11" />
+    <bytecodeTargetLevel target="17" />
   </component>
 </project>

.idea/kotlinc.xml

@@ -3,4 +3,7 @@
   <component name="Kotlin2JvmCompilerArguments">
     <option name="jvmTarget" value="1.8" />
   </component>
+  <component name="KotlinJpsPluginSettings">
+    <option name="version" value="1.6.21" />
+  </component>
 </project>

app/build.gradle

@@ -14,8 +14,8 @@ android {
 		applicationId 'org.koitharu.kotatsu'
 		minSdkVersion 21
 		targetSdkVersion 32
-		versionCode 415
-		versionName '3.4.3'
+		versionCode 430
+		versionName '3.5'
 		generatedDensities = []
 		testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
 
@@ -28,6 +28,8 @@ android {
 		// define this values in your local.properties file
 		buildConfigField 'String', 'SHIKIMORI_CLIENT_ID', "\"${localProperty('shikimori.clientId')}\""
 		buildConfigField 'String', 'SHIKIMORI_CLIENT_SECRET', "\"${localProperty('shikimori.clientSecret')}\""
+		resValue "string", "acra_login", "${localProperty('acra.login')}"
+		resValue "string", "acra_password", "${localProperty('acra.password')}"
 	}
 	buildTypes {
 		debug {
@@ -64,8 +66,11 @@ android {
 		disable 'MissingTranslation', 'PrivateResource', 'NotifyDataSetChanged'
 	}
 	testOptions {
-		unitTests.includeAndroidResources = true
-		unitTests.returnDefaultValues = false
+		unitTests.includeAndroidResources true
+		unitTests.returnDefaultValues false
+		kotlinOptions {
+			freeCompilerArgs += ['-opt-in=org.koitharu.kotatsu.parsers.InternalParsersApi']
+		}
 	}
 }
 afterEvaluate {
@@ -76,19 +81,19 @@ afterEvaluate {
 	}
 }
 dependencies {
-	implementation('com.github.nv95:kotatsu-parsers:2d1907569b') {
+	implementation('com.github.KotatsuApp:kotatsu-parsers:5cb953eb86') {
 		exclude group: 'org.json', module: 'json'
 	}
 
-	implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.6.3'
+	implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.6.4'
 
 	implementation 'androidx.core:core-ktx:1.8.0'
-	implementation 'androidx.activity:activity-ktx:1.5.0'
-	implementation 'androidx.fragment:fragment-ktx:1.5.0'
-	implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.5.0'
-	implementation 'androidx.lifecycle:lifecycle-livedata-ktx:2.5.0'
-	implementation 'androidx.lifecycle:lifecycle-service:2.5.0'
-	implementation 'androidx.lifecycle:lifecycle-process:2.5.0'
+	implementation 'androidx.activity:activity-ktx:1.5.1'
+	implementation 'androidx.fragment:fragment-ktx:1.5.3'
+	implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.5.1'
+	implementation 'androidx.lifecycle:lifecycle-livedata-ktx:2.5.1'
+	implementation 'androidx.lifecycle:lifecycle-service:2.5.1'
+	implementation 'androidx.lifecycle:lifecycle-process:2.5.1'
 	implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
 	implementation 'androidx.swiperefreshlayout:swiperefreshlayout:1.1.0'
 	implementation 'androidx.recyclerview:recyclerview:1.2.1'
@@ -96,13 +101,13 @@ dependencies {
 	implementation 'androidx.preference:preference-ktx:1.2.0'
 	implementation 'androidx.work:work-runtime-ktx:2.7.1'
 	implementation 'androidx.biometric:biometric-ktx:1.2.0-alpha04'
-	implementation 'com.google.android.material:material:1.7.0-alpha02'
+	implementation 'com.google.android.material:material:1.7.0-rc01'
 	//noinspection LifecycleAnnotationProcessorWithJava8
-	kapt 'androidx.lifecycle:lifecycle-compiler:2.5.0'
+	kapt 'androidx.lifecycle:lifecycle-compiler:2.5.1'
 
-	implementation 'androidx.room:room-runtime:2.4.2'
-	implementation 'androidx.room:room-ktx:2.4.2'
-	kapt 'androidx.room:room-compiler:2.4.2'
+	implementation 'androidx.room:room-runtime:2.4.3'
+	implementation 'androidx.room:room-ktx:2.4.3'
+	kapt 'androidx.room:room-compiler:2.4.3'
 
 	implementation 'com.squareup.okhttp3:okhttp:4.10.0'
 	implementation 'com.squareup.okhttp3:okhttp-dnsoverhttps:4.9.3'
@@ -112,28 +117,28 @@ dependencies {
 	implementation 'com.hannesdorfmann:adapterdelegates4-kotlin-dsl-viewbinding:4.3.2'
 
 	implementation 'io.insert-koin:koin-android:3.2.0'
-	implementation 'io.coil-kt:coil-base:2.1.0'
+	implementation 'io.coil-kt:coil-base:2.2.1'
 	implementation 'com.davemorrissey.labs:subsampling-scale-image-view-androidx:3.10.0'
 	implementation 'com.github.solkin:disk-lru-cache:1.4'
 
-	implementation 'ch.acra:acra-mail:5.9.3'
-	implementation 'ch.acra:acra-dialog:5.9.3'
+	implementation 'ch.acra:acra-http:5.9.6'
+	implementation 'ch.acra:acra-dialog:5.9.6'
 
-	debugImplementation 'org.jsoup:jsoup:1.15.1'
 	debugImplementation 'com.squareup.leakcanary:leakcanary-android:2.9.1'
 
 	testImplementation 'junit:junit:4.13.2'
-	testImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:1.6.3'
+	testImplementation 'org.json:json:20220320'
+	testImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:1.6.4'
 
 	androidTestImplementation 'androidx.test:runner:1.4.0'
 	androidTestImplementation 'androidx.test:rules:1.4.0'
 	androidTestImplementation 'androidx.test:core-ktx:1.4.0'
 	androidTestImplementation 'androidx.test.ext:junit-ktx:1.1.3'
 
-	androidTestImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:1.6.3'
+	androidTestImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:1.6.4'
 	androidTestImplementation 'io.insert-koin:koin-test:3.2.0'
 	androidTestImplementation 'io.insert-koin:koin-test-junit4:3.2.0'
 
-	androidTestImplementation 'androidx.room:room-testing:2.4.2'
-	androidTestImplementation 'com.squareup.moshi:moshi-kotlin:1.13.0'
+	androidTestImplementation 'androidx.room:room-testing:2.4.3'
+	androidTestImplementation 'com.squareup.moshi:moshi-kotlin:1.14.0'
 }

app/proguard-rules.pro

@@ -10,4 +10,6 @@
 }
 -keep public class ** extends org.koitharu.kotatsu.base.ui.BaseFragment
 -keep class org.koitharu.kotatsu.core.db.entity.* { *; }
--dontwarn okhttp3.internal.platform.ConscryptPlatform
+-dontwarn okhttp3.internal.platform.ConscryptPlatform
+-keep class org.koitharu.kotatsu.core.exceptions.* { *; }
+-keep class org.koitharu.kotatsu.settings.NotificationSettingsLegacyFragment

app/src/androidTest/assets/categories/simple.json

@@ -0,0 +1,8 @@
+{
+	"id": 4,
+	"title": "Read later",
+	"sortKey": 1,
+	"order": "NEWEST",
+	"createdAt": 1335906000000,
+	"isTrackingEnabled": true
+}

app/src/androidTest/assets/manga/header.json

@@ -0,0 +1,35 @@
+{
+	"id": -2096681732556647985,
+	"title": "Странствия Эманон",
+	"url": "/stranstviia_emanon",
+	"publicUrl": "https://readmanga.io/stranstviia_emanon",
+	"rating": 0.9400894,
+	"isNsfw": true,
+	"coverUrl": "https://staticrm.rmr.rocks/uploads/pics/01/12/559_p.jpg",
+	"tags": [
+		{
+			"title": "Сверхъестественное",
+			"key": "supernatural",
+			"source": "READMANGA_RU"
+		},
+		{
+			"title": "Сэйнэн",
+			"key": "seinen",
+			"source": "READMANGA_RU"
+		},
+		{
+			"title": "Повседневность",
+			"key": "slice_of_life",
+			"source": "READMANGA_RU"
+		},
+		{
+			"title": "Приключения",
+			"key": "adventure",
+			"source": "READMANGA_RU"
+		}
+	],
+	"state": "FINISHED",
+	"largeCoverUrl": "https://staticrm.rmr.rocks/uploads/pics/01/12/559_o.jpg",
+	"description": null,
+	"source": "READMANGA_RU"
+}

app/src/androidTest/java/org/koitharu/kotatsu/Instrumentation.kt

@@ -0,0 +1,9 @@
+package org.koitharu.kotatsu
+
+import android.app.Instrumentation
+import kotlin.coroutines.resume
+import kotlin.coroutines.suspendCoroutine
+
+suspend fun Instrumentation.awaitForIdle() = suspendCoroutine<Unit> { cont ->
+	waitForIdle { cont.resume(Unit) }
+}

app/src/androidTest/java/org/koitharu/kotatsu/SampleData.kt

@@ -0,0 +1,54 @@
+package org.koitharu.kotatsu
+
+import androidx.test.platform.app.InstrumentationRegistry
+import com.squareup.moshi.*
+import com.squareup.moshi.kotlin.reflect.KotlinJsonAdapterFactory
+import okio.buffer
+import okio.source
+import org.koitharu.kotatsu.core.model.FavouriteCategory
+import org.koitharu.kotatsu.parsers.model.Manga
+import java.util.*
+import kotlin.reflect.KClass
+
+object SampleData {
+
+	private val moshi = Moshi.Builder()
+		.add(DateAdapter())
+		.add(KotlinJsonAdapterFactory())
+		.build()
+
+	val manga: Manga = loadAsset("manga/header.json", Manga::class)
+
+	val mangaDetails: Manga = loadAsset("manga/full.json", Manga::class)
+
+	val tag = mangaDetails.tags.elementAt(2)
+
+	val chapter = checkNotNull(mangaDetails.chapters)[2]
+
+	val favouriteCategory: FavouriteCategory = loadAsset("categories/simple.json", FavouriteCategory::class)
+
+	fun <T : Any> loadAsset(name: String, cls: KClass<T>): T {
+		val assets = InstrumentationRegistry.getInstrumentation().context.assets
+		return assets.open(name).use {
+			moshi.adapter(cls.java).fromJson(it.source().buffer())
+		} ?: throw RuntimeException("Cannot read asset from json \"$name\"")
+	}
+
+	private class DateAdapter : JsonAdapter<Date>() {
+
+		@FromJson
+		override fun fromJson(reader: JsonReader): Date? {
+			val ms = reader.nextLong()
+			return if (ms == 0L) {
+				null
+			} else {
+				Date(ms)
+			}
+		}
+
+		@ToJson
+		override fun toJson(writer: JsonWriter, value: Date?) {
+			writer.value(value?.time ?: 0L)
+		}
+	}
+}

app/src/androidTest/java/org/koitharu/kotatsu/core/db/MangaDatabaseTest.kt

@@ -3,11 +3,10 @@ package org.koitharu.kotatsu.core.db
 import androidx.room.testing.MigrationTestHelper
 import androidx.test.ext.junit.runners.AndroidJUnit4
 import androidx.test.platform.app.InstrumentationRegistry
-import java.io.IOException
 import org.junit.Rule
 import org.junit.Test
 import org.junit.runner.RunWith
-import org.koitharu.kotatsu.core.db.migrations.*
+import kotlin.test.assertEquals
 
 @RunWith(AndroidJUnit4::class)
 class MangaDatabaseTest {
@@ -18,38 +17,41 @@ class MangaDatabaseTest {
 		MangaDatabase::class.java,
 	)
 
+	private val migrations = databaseMigrations
+
 	@Test
-	@Throws(IOException::class)
-	fun migrateAll() {
-		helper.createDatabase(TEST_DB, 1).apply {
-			// TODO execSQL("")
-			close()
+	fun versions() {
+		assertEquals(1, migrations.first().startVersion)
+		repeat(migrations.size) { i ->
+			assertEquals(i + 1, migrations[i].startVersion)
+			assertEquals(i + 2, migrations[i].endVersion)
 		}
+		assertEquals(DATABASE_VERSION, migrations.last().endVersion)
+	}
+
+	@Test
+	fun migrateAll() {
+		helper.createDatabase(TEST_DB, 1).close()
 		for (migration in migrations) {
 			helper.runMigrationsAndValidate(
 				TEST_DB,
 				migration.endVersion,
 				true,
 				migration
-			)
+			).close()
+		}
+	}
+
+	@Test
+	fun prePopulate() {
+		val resources = InstrumentationRegistry.getInstrumentation().targetContext.resources
+		helper.createDatabase(TEST_DB, DATABASE_VERSION).use {
+			DatabasePrePopulateCallback(resources).onCreate(it)
 		}
 	}
 
 	private companion object {
 
 		const val TEST_DB = "test-db"
-
-		val migrations = arrayOf(
-			Migration1To2(),
-			Migration2To3(),
-			Migration3To4(),
-			Migration4To5(),
-			Migration5To6(),
-			Migration6To7(),
-			Migration7To8(),
-			Migration8To9(),
-			Migration9To10(),
-			Migration10To11(),
-		)
 	}
-}
+}

app/src/androidTest/java/org/koitharu/kotatsu/core/os/ShortcutsUpdaterTest.kt

@@ -0,0 +1,65 @@
+package org.koitharu.kotatsu.core.os
+
+import android.content.pm.ShortcutInfo
+import android.content.pm.ShortcutManager
+import android.os.Build
+import androidx.core.content.getSystemService
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import androidx.test.platform.app.InstrumentationRegistry
+import kotlinx.coroutines.test.runTest
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.koin.test.KoinTest
+import org.koin.test.inject
+import org.koitharu.kotatsu.SampleData
+import org.koitharu.kotatsu.awaitForIdle
+import org.koitharu.kotatsu.core.db.MangaDatabase
+import org.koitharu.kotatsu.history.domain.HistoryRepository
+import kotlin.test.assertEquals
+import kotlin.test.assertTrue
+
+@RunWith(AndroidJUnit4::class)
+class ShortcutsUpdaterTest : KoinTest {
+
+	private val historyRepository by inject<HistoryRepository>()
+	private val shortcutsUpdater by inject<ShortcutsUpdater>()
+	private val database by inject<MangaDatabase>()
+
+	@Before
+	fun setUp() {
+		database.clearAllTables()
+	}
+
+	@Test
+	fun testUpdateShortcuts() = runTest {
+		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N_MR1) {
+			return@runTest
+		}
+		awaitUpdate()
+		assertTrue(getShortcuts().isEmpty())
+		historyRepository.addOrUpdate(
+			manga = SampleData.manga,
+			chapterId = SampleData.chapter.id,
+			page = 4,
+			scroll = 2,
+			percent = 0.3f
+		)
+		awaitUpdate()
+
+		val shortcuts = getShortcuts()
+		assertEquals(1, shortcuts.size)
+	}
+
+	private fun getShortcuts(): List<ShortcutInfo> {
+		val context = InstrumentationRegistry.getInstrumentation().targetContext
+		val manager = checkNotNull(context.getSystemService<ShortcutManager>())
+		return manager.dynamicShortcuts.filterNot { it.id == "com.squareup.leakcanary.dynamic_shortcut" }
+	}
+
+	private suspend fun awaitUpdate() {
+		val instrumentation = InstrumentationRegistry.getInstrumentation()
+		instrumentation.awaitForIdle()
+		shortcutsUpdater.await()
+	}
+}

app/src/androidTest/java/org/koitharu/kotatsu/settings/backup/AppBackupAgentTest.kt

@@ -0,0 +1,67 @@
+package org.koitharu.kotatsu.settings.backup
+
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import kotlinx.coroutines.test.runTest
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.koin.test.KoinTest
+import org.koin.test.get
+import org.koin.test.inject
+import org.koitharu.kotatsu.SampleData
+import org.koitharu.kotatsu.core.backup.BackupRepository
+import org.koitharu.kotatsu.core.db.MangaDatabase
+import org.koitharu.kotatsu.core.db.entity.toMangaTags
+import org.koitharu.kotatsu.favourites.domain.FavouritesRepository
+import org.koitharu.kotatsu.history.domain.HistoryRepository
+import kotlin.test.*
+
+@RunWith(AndroidJUnit4::class)
+class AppBackupAgentTest : KoinTest {
+
+	private val historyRepository by inject<HistoryRepository>()
+	private val favouritesRepository by inject<FavouritesRepository>()
+	private val backupRepository by inject<BackupRepository>()
+	private val database by inject<MangaDatabase>()
+
+	@Before
+	fun setUp() {
+		database.clearAllTables()
+	}
+
+	@Test
+	fun testBackupRestore() = runTest {
+		val category = favouritesRepository.createCategory(
+			title = SampleData.favouriteCategory.title,
+			sortOrder = SampleData.favouriteCategory.order,
+			isTrackerEnabled = SampleData.favouriteCategory.isTrackingEnabled,
+		)
+		favouritesRepository.addToCategory(categoryId = category.id, mangas = listOf(SampleData.manga))
+		historyRepository.addOrUpdate(
+			manga = SampleData.mangaDetails,
+			chapterId = SampleData.mangaDetails.chapters!![2].id,
+			page = 3,
+			scroll = 40,
+			percent = 0.2f,
+		)
+		val history = checkNotNull(historyRepository.getOne(SampleData.manga))
+
+		val agent = AppBackupAgent()
+		val backup = agent.createBackupFile(get(), backupRepository)
+
+		database.clearAllTables()
+		assertTrue(favouritesRepository.getAllManga().isEmpty())
+		assertNull(historyRepository.getLastOrNull())
+
+		backup.inputStream().use {
+			agent.restoreBackupFile(it.fd, backup.length(), backupRepository)
+		}
+
+		assertEquals(category, favouritesRepository.getCategory(category.id))
+		assertEquals(history, historyRepository.getOne(SampleData.manga))
+		assertContentEquals(listOf(SampleData.manga), favouritesRepository.getManga(category.id))
+
+		val allTags = database.tagsDao.findTags(SampleData.tag.source.name).toMangaTags()
+		assertContains(allTags, SampleData.tag)
+	}
+}

app/src/androidTest/java/org/koitharu/kotatsu/tracker/domain/TrackerTest.kt

@@ -1,29 +1,21 @@
 package org.koitharu.kotatsu.tracker.domain
 
 import androidx.test.ext.junit.runners.AndroidJUnit4
-import androidx.test.platform.app.InstrumentationRegistry
-import com.squareup.moshi.Moshi
-import com.squareup.moshi.kotlin.reflect.KotlinJsonAdapterFactory
-import kotlin.test.assertEquals
-import kotlin.test.assertFalse
-import kotlin.test.assertTrue
 import kotlinx.coroutines.test.runTest
-import okio.buffer
-import okio.source
 import org.junit.Test
 import org.junit.runner.RunWith
 import org.koin.test.KoinTest
 import org.koin.test.inject
+import org.koitharu.kotatsu.SampleData
 import org.koitharu.kotatsu.base.domain.MangaDataRepository
-import org.koitharu.kotatsu.history.domain.HistoryRepository
 import org.koitharu.kotatsu.parsers.model.Manga
+import kotlin.test.assertEquals
+import kotlin.test.assertFalse
+import kotlin.test.assertTrue
 
 @RunWith(AndroidJUnit4::class)
 class TrackerTest : KoinTest {
 
-	private val moshi = Moshi.Builder().add(KotlinJsonAdapterFactory()).build()
-	private val mangaAdapter = moshi.adapter(Manga::class.java)
-	private val historyRegistry by inject<HistoryRepository>()
 	private val repository by inject<TrackingRepository>()
 	private val dataRepository by inject<MangaDataRepository>()
 	private val tracker by inject<Tracker>()
@@ -166,22 +158,25 @@ class TrackerTest : KoinTest {
 		}
 		assertEquals(3, repository.getNewChaptersCount(mangaFirst.id))
 
-		val chapter = requireNotNull(mangaFull.chapters).run { get(lastIndex - 1) }
+		var chapter = requireNotNull(mangaFull.chapters).run { get(lastIndex - 1) }
 		repository.syncWithHistory(mangaFull, chapter.id)
 
 		assertEquals(1, repository.getNewChaptersCount(mangaFirst.id))
+
+		chapter = requireNotNull(mangaFull.chapters).run { get(lastIndex) }
+		repository.syncWithHistory(mangaFull, chapter.id)
+
+		assertEquals(0, repository.getNewChaptersCount(mangaFirst.id))
+
 		tracker.checkUpdates(mangaFull, commit = true).apply {
 			assertTrue(isValid)
 			assert(newChapters.isEmpty())
 		}
-		assertEquals(1, repository.getNewChaptersCount(mangaFirst.id))
+		assertEquals(0, repository.getNewChaptersCount(mangaFirst.id))
 	}
 
 	private suspend fun loadManga(name: String): Manga {
-		val assets = InstrumentationRegistry.getInstrumentation().context.assets
-		val manga = assets.open("manga/$name").use {
-			mangaAdapter.fromJson(it.source().buffer())
-		} ?: throw RuntimeException("Cannot read manga from json \"$name\"")
+		val manga = SampleData.loadAsset("manga/$name", Manga::class)
 		dataRepository.storeManga(manga)
 		return manga
 	}

app/src/main/AndroidManifest.xml

@@ -111,6 +111,7 @@
 
 		<service
 			android:name="org.koitharu.kotatsu.download.ui.service.DownloadService"
+			android:stopWithTask="false"
 			android:foregroundServiceType="dataSync" />
 		<service android:name="org.koitharu.kotatsu.local.ui.LocalChaptersRemoveService" />
 		<service

app/src/main/java/org/koitharu/kotatsu/KotatsuApp.kt

@@ -5,16 +5,19 @@ import android.content.Context
 import android.os.StrictMode
 import androidx.appcompat.app.AppCompatDelegate
 import androidx.fragment.app.strictmode.FragmentStrictMode
+import androidx.room.InvalidationTracker
 import org.acra.ReportField
 import org.acra.config.dialog
-import org.acra.config.mailSender
+import org.acra.config.httpSender
 import org.acra.data.StringFormat
 import org.acra.ktx.initAcra
+import org.acra.sender.HttpSender
 import org.koin.android.ext.android.get
+import org.koin.android.ext.android.getKoin
 import org.koin.android.ext.koin.androidContext
 import org.koin.core.context.startKoin
-import org.koitharu.kotatsu.base.ui.util.ActivityRecreationHandle
 import org.koitharu.kotatsu.bookmarks.bookmarksModule
+import org.koitharu.kotatsu.core.db.MangaDatabase
 import org.koitharu.kotatsu.core.db.databaseModule
 import org.koitharu.kotatsu.core.github.githubModule
 import org.koitharu.kotatsu.core.network.networkModule
@@ -27,7 +30,6 @@ import org.koitharu.kotatsu.local.data.PagesCache
 import org.koitharu.kotatsu.local.domain.LocalMangaRepository
 import org.koitharu.kotatsu.local.localModule
 import org.koitharu.kotatsu.main.mainModule
-import org.koitharu.kotatsu.main.ui.protect.AppProtectHelper
 import org.koitharu.kotatsu.parsers.MangaLoaderContext
 import org.koitharu.kotatsu.reader.readerModule
 import org.koitharu.kotatsu.remotelist.remoteListModule
@@ -36,7 +38,6 @@ import org.koitharu.kotatsu.search.searchModule
 import org.koitharu.kotatsu.settings.settingsModule
 import org.koitharu.kotatsu.suggestions.suggestionsModule
 import org.koitharu.kotatsu.tracker.trackerModule
-import org.koitharu.kotatsu.widget.WidgetUpdater
 import org.koitharu.kotatsu.widget.appWidgetModule
 
 class KotatsuApp : Application() {
@@ -48,11 +49,8 @@ class KotatsuApp : Application() {
 		}
 		initKoin()
 		AppCompatDelegate.setDefaultNightMode(get<AppSettings>().theme)
-		registerActivityLifecycleCallbacks(get<AppProtectHelper>())
-		registerActivityLifecycleCallbacks(get<ActivityRecreationHandle>())
-		val widgetUpdater = WidgetUpdater(applicationContext)
-		widgetUpdater.subscribeToFavourites(get())
-		widgetUpdater.subscribeToHistory(get())
+		setupActivityLifecycleCallbacks()
+		setupDatabaseObservers()
 	}
 
 	private fun initKoin() {
@@ -85,16 +83,24 @@ class KotatsuApp : Application() {
 		super.attachBaseContext(base)
 		initAcra {
 			buildConfigClass = BuildConfig::class.java
-			reportFormat = StringFormat.KEY_VALUE_LIST
+			reportFormat = StringFormat.JSON
+			excludeMatchingSharedPreferencesKeys = listOf(
+				"sources_\\w+",
+			)
+			httpSender {
+				uri = getString(R.string.url_error_report)
+				basicAuthLogin = getString(R.string.acra_login)
+				basicAuthPassword = getString(R.string.acra_password)
+				httpMethod = HttpSender.Method.POST
+			}
 			reportContent = listOf(
 				ReportField.PACKAGE_NAME,
 				ReportField.APP_VERSION_CODE,
 				ReportField.APP_VERSION_NAME,
 				ReportField.ANDROID_VERSION,
 				ReportField.PHONE_MODEL,
-				ReportField.CRASH_CONFIGURATION,
 				ReportField.STACK_TRACE,
-				ReportField.CUSTOM_DATA,
+				ReportField.CRASH_CONFIGURATION,
 				ReportField.SHARED_PREFERENCES,
 			)
 			dialog {
@@ -104,11 +110,22 @@ class KotatsuApp : Application() {
 				resIcon = R.drawable.ic_alert_outline
 				resTheme = android.R.style.Theme_Material_Light_Dialog_Alert
 			}
-			mailSender {
-				mailTo = getString(R.string.email_error_report)
-				reportAsFile = true
-				reportFileName = "stacktrace.txt"
-			}
+		}
+	}
+
+	private fun setupDatabaseObservers() {
+		val observers = getKoin().getAll<InvalidationTracker.Observer>()
+		val database = get<MangaDatabase>()
+		val tracker = database.invalidationTracker
+		observers.forEach {
+			tracker.addObserver(it)
+		}
+	}
+
+	private fun setupActivityLifecycleCallbacks() {
+		val callbacks = getKoin().getAll<ActivityLifecycleCallbacks>()
+		callbacks.forEach {
+			registerActivityLifecycleCallbacks(it)
 		}
 	}
 
@@ -117,7 +134,7 @@ class KotatsuApp : Application() {
 			StrictMode.ThreadPolicy.Builder()
 				.detectAll()
 				.penaltyLog()
-				.build()
+				.build(),
 		)
 		StrictMode.setVmPolicy(
 			StrictMode.VmPolicy.Builder()
@@ -126,7 +143,7 @@ class KotatsuApp : Application() {
 				.setClassInstanceLimit(PagesCache::class.java, 1)
 				.setClassInstanceLimit(MangaLoaderContext::class.java, 1)
 				.penaltyLog()
-				.build()
+				.build(),
 		)
 		FragmentStrictMode.defaultPolicy = FragmentStrictMode.Policy.Builder()
 			.penaltyDeath()

app/src/main/java/org/koitharu/kotatsu/base/domain/ReversibleHandle.kt

@@ -1,8 +1,12 @@
 package org.koitharu.kotatsu.base.domain
 
 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.NonCancellable
 import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+import org.koitharu.kotatsu.utils.ext.printStackTraceDebug
 import org.koitharu.kotatsu.utils.ext.processLifecycleScope
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable
 
 fun interface ReversibleHandle {
 
@@ -10,7 +14,13 @@ fun interface ReversibleHandle {
 }
 
 fun ReversibleHandle.reverseAsync() = processLifecycleScope.launch(Dispatchers.Default) {
-	reverse()
+	runCatchingCancellable {
+		withContext(NonCancellable) {
+			reverse()
+		}
+	}.onFailure {
+		it.printStackTraceDebug()
+	}
 }
 
 operator fun ReversibleHandle.plus(other: ReversibleHandle) = ReversibleHandle {

app/src/main/java/org/koitharu/kotatsu/base/ui/widgets/CheckableImageView.kt

@@ -10,6 +10,7 @@ import android.widget.Checkable
 import androidx.annotation.AttrRes
 import androidx.appcompat.widget.AppCompatImageView
 import androidx.core.os.ParcelCompat
+import androidx.customview.view.AbsSavedState
 
 class CheckableImageView @JvmOverloads constructor(
 	context: Context,
@@ -73,7 +74,7 @@ class CheckableImageView @JvmOverloads constructor(
 		fun onCheckedChanged(view: CheckableImageView, isChecked: Boolean)
 	}
 
-	private class SavedState : BaseSavedState {
+	private class SavedState : AbsSavedState {
 
 		val isChecked: Boolean
 
@@ -81,7 +82,7 @@ class CheckableImageView @JvmOverloads constructor(
 			isChecked = checked
 		}
 
-		constructor(source: Parcel) : super(source) {
+		constructor(source: Parcel, classLoader: ClassLoader?) : super(source, classLoader) {
 			isChecked = ParcelCompat.readBoolean(source)
 		}
 
@@ -91,9 +92,10 @@ class CheckableImageView @JvmOverloads constructor(
 		}
 
 		companion object {
+			@Suppress("unused")
 			@JvmField
 			val CREATOR: Creator<SavedState> = object : Creator<SavedState> {
-				override fun createFromParcel(`in`: Parcel) = SavedState(`in`)
+				override fun createFromParcel(`in`: Parcel) = SavedState(`in`, SavedState::class.java.classLoader)
 
 				override fun newArray(size: Int): Array<SavedState?> = arrayOfNulls(size)
 			}

app/src/main/java/org/koitharu/kotatsu/base/ui/widgets/SelectableTextView.kt

@@ -0,0 +1,29 @@
+package org.koitharu.kotatsu.base.ui.widgets
+
+import android.content.Context
+import android.text.Selection
+import android.text.Spannable
+import android.util.AttributeSet
+import android.view.MotionEvent
+import androidx.annotation.AttrRes
+import com.google.android.material.textview.MaterialTextView
+
+class SelectableTextView @JvmOverloads constructor(
+	context: Context,
+	attrs: AttributeSet? = null,
+	@AttrRes defStyleAttr: Int = android.R.attr.textViewStyle,
+) : MaterialTextView(context, attrs, defStyleAttr) {
+
+	override fun dispatchTouchEvent(event: MotionEvent?): Boolean {
+		fixSelectionRange()
+		return super.dispatchTouchEvent(event)
+	}
+
+	// https://stackoverflow.com/questions/22810147/error-when-selecting-text-from-textview-java-lang-indexoutofboundsexception-se
+	private fun fixSelectionRange() {
+		if (selectionStart < 0 || selectionEnd < 0) {
+			val spannableText = text as? Spannable ?: return
+			Selection.setSelection(spannableText, text.length)
+		}
+	}
+}

app/src/main/java/org/koitharu/kotatsu/bookmarks/data/BookmarkEntity.kt

@@ -17,7 +17,7 @@ import org.koitharu.kotatsu.core.db.entity.MangaEntity
 		),
 	]
 )
-class BookmarkEntity(
+data class BookmarkEntity(
 	@ColumnInfo(name = "manga_id", index = true) val mangaId: Long,
 	@ColumnInfo(name = "page_id", index = true) val pageId: Long,
 	@ColumnInfo(name = "chapter_id") val chapterId: Long,

app/src/main/java/org/koitharu/kotatsu/bookmarks/ui/BookmarkListAD.kt

@@ -2,15 +2,13 @@ package org.koitharu.kotatsu.bookmarks.ui
 
 import androidx.lifecycle.LifecycleOwner
 import coil.ImageLoader
-import coil.request.Disposable
-import coil.size.Scale
-import coil.util.CoilUtils
 import com.hannesdorfmann.adapterdelegates4.dsl.adapterDelegateViewBinding
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.base.ui.list.AdapterDelegateClickListenerAdapter
 import org.koitharu.kotatsu.base.ui.list.OnListItemClickListener
 import org.koitharu.kotatsu.bookmarks.domain.Bookmark
 import org.koitharu.kotatsu.databinding.ItemBookmarkBinding
+import org.koitharu.kotatsu.utils.ext.disposeImageRequest
 import org.koitharu.kotatsu.utils.ext.enqueueWith
 import org.koitharu.kotatsu.utils.ext.newImageRequest
 import org.koitharu.kotatsu.utils.ext.referer
@@ -23,29 +21,24 @@ fun bookmarkListAD(
 	{ inflater, parent -> ItemBookmarkBinding.inflate(inflater, parent, false) }
 ) {
 
-	var imageRequest: Disposable? = null
 	val listener = AdapterDelegateClickListenerAdapter(this, clickListener)
 
 	binding.root.setOnClickListener(listener)
 	binding.root.setOnLongClickListener(listener)
 
 	bind {
-		imageRequest?.dispose()
-		imageRequest = binding.imageViewThumb.newImageRequest(item.imageUrl)
-			.referer(item.manga.publicUrl)
-			.placeholder(R.drawable.ic_placeholder)
-			.fallback(R.drawable.ic_placeholder)
-			.error(R.drawable.ic_placeholder)
-			.allowRgb565(true)
-			.scale(Scale.FILL)
-			.lifecycle(lifecycleOwner)
-			.enqueueWith(coil)
+		binding.imageViewThumb.newImageRequest(item.imageUrl)?.run {
+			referer(item.manga.publicUrl)
+			placeholder(R.drawable.ic_placeholder)
+			fallback(R.drawable.ic_placeholder)
+			error(R.drawable.ic_placeholder)
+			allowRgb565(true)
+			lifecycle(lifecycleOwner)
+			enqueueWith(coil)
+		}
 	}
 
 	onViewRecycled {
-		imageRequest?.dispose()
-		imageRequest = null
-		CoilUtils.dispose(binding.imageViewThumb)
-		binding.imageViewThumb.setImageDrawable(null)
+		binding.imageViewThumb.disposeImageRequest()
 	}
 }

app/src/main/java/org/koitharu/kotatsu/browser/BrowserClient.kt

@@ -2,10 +2,9 @@ package org.koitharu.kotatsu.browser
 
 import android.graphics.Bitmap
 import android.webkit.WebView
-import org.koin.core.component.KoinComponent
-import org.koitharu.kotatsu.core.network.WebViewClientCompat
+import android.webkit.WebViewClient
 
-class BrowserClient(private val callback: BrowserCallback) : WebViewClientCompat(), KoinComponent {
+class BrowserClient(private val callback: BrowserCallback) : WebViewClient() {
 
 	override fun onPageFinished(webView: WebView, url: String) {
 		super.onPageFinished(webView, url)

app/src/main/java/org/koitharu/kotatsu/browser/ProgressChromeClient.kt

@@ -2,13 +2,14 @@ package org.koitharu.kotatsu.browser
 
 import android.webkit.WebChromeClient
 import android.webkit.WebView
+import android.widget.ProgressBar
 import androidx.core.view.isVisible
-import com.google.android.material.progressindicator.BaseProgressIndicator
+import org.koitharu.kotatsu.utils.ext.setProgressCompat
 
 private const val PROGRESS_MAX = 100
 
 class ProgressChromeClient(
-	private val progressIndicator: BaseProgressIndicator<*>,
+	private val progressIndicator: ProgressBar,
 ) : WebChromeClient() {
 
 	init {
@@ -24,7 +25,7 @@ class ProgressChromeClient(
 			progressIndicator.isIndeterminate = false
 			progressIndicator.setProgressCompat(newProgress.coerceAtMost(PROGRESS_MAX), true)
 		} else {
-			progressIndicator.setIndeterminate(true)
+			progressIndicator.isIndeterminate = true
 		}
 	}
 }

app/src/main/java/org/koitharu/kotatsu/browser/cloudflare/CloudFlareClient.kt

@@ -2,19 +2,19 @@ package org.koitharu.kotatsu.browser.cloudflare
 
 import android.graphics.Bitmap
 import android.webkit.WebView
+import android.webkit.WebViewClient
 import okhttp3.HttpUrl.Companion.toHttpUrl
 import org.koitharu.kotatsu.core.network.AndroidCookieJar
-import org.koitharu.kotatsu.core.network.WebViewClientCompat
 
 private const val CF_CLEARANCE = "cf_clearance"
 
 class CloudFlareClient(
 	private val cookieJar: AndroidCookieJar,
 	private val callback: CloudFlareCallback,
-	private val targetUrl: String
-) : WebViewClientCompat() {
+	private val targetUrl: String,
+) : WebViewClient() {
 
-	private val oldClearance = getCookieValue(CF_CLEARANCE)
+	private val oldClearance = getClearance()
 
 	override fun onPageStarted(view: WebView, url: String?, favicon: Bitmap?) {
 		super.onPageStarted(view, url, favicon)
@@ -32,14 +32,14 @@ class CloudFlareClient(
 	}
 
 	private fun checkClearance() {
-		val clearance = getCookieValue(CF_CLEARANCE)
+		val clearance = getClearance()
 		if (clearance != null && clearance != oldClearance) {
 			callback.onCheckPassed()
 		}
 	}
 
-	private fun getCookieValue(name: String): String? {
+	private fun getClearance(): String? {
 		return cookieJar.loadForRequest(targetUrl.toHttpUrl())
-			.find { it.name == name }?.value
+			.find { it.name == CF_CLEARANCE }?.value
 	}
 }

app/src/main/java/org/koitharu/kotatsu/browser/cloudflare/CloudFlareDialog.kt

@@ -25,7 +25,7 @@ class CloudFlareDialog : AlertDialogFragment<FragmentCloudflareBinding>(), Cloud
 
 	override fun onInflateView(
 		inflater: LayoutInflater,
-		container: ViewGroup?
+		container: ViewGroup?,
 	) = FragmentCloudflareBinding.inflate(inflater, container, false)
 
 	@SuppressLint("SetJavaScriptEnabled")
@@ -49,6 +49,7 @@ class CloudFlareDialog : AlertDialogFragment<FragmentCloudflareBinding>(), Cloud
 
 	override fun onDestroyView() {
 		binding.webView.stopLoading()
+		binding.webView.destroy()
 		super.onDestroyView()
 	}
 
@@ -77,7 +78,7 @@ class CloudFlareDialog : AlertDialogFragment<FragmentCloudflareBinding>(), Cloud
 
 	override fun onCheckPassed() {
 		pendingResult.putBoolean(EXTRA_RESULT, true)
-		dismiss()
+		dismissAllowingStateLoss()
 	}
 
 	companion object {

app/src/main/java/org/koitharu/kotatsu/core/backup/BackupRepository.kt

@@ -1,14 +1,13 @@
 package org.koitharu.kotatsu.core.backup
 
+import androidx.room.withTransaction
 import org.json.JSONArray
 import org.json.JSONObject
 import org.koitharu.kotatsu.BuildConfig
 import org.koitharu.kotatsu.core.db.MangaDatabase
-import org.koitharu.kotatsu.core.db.entity.MangaEntity
-import org.koitharu.kotatsu.core.db.entity.TagEntity
-import org.koitharu.kotatsu.favourites.data.FavouriteCategoryEntity
-import org.koitharu.kotatsu.favourites.data.FavouriteEntity
-import org.koitharu.kotatsu.history.data.HistoryEntity
+import org.koitharu.kotatsu.parsers.util.json.JSONIterator
+import org.koitharu.kotatsu.parsers.util.json.mapJSON
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable
 
 private const val PAGE_SIZE = 10
 
@@ -24,11 +23,11 @@ class BackupRepository(private val db: MangaDatabase) {
 			}
 			offset += history.size
 			for (item in history) {
-				val manga = item.manga.toJson()
+				val manga = JsonSerializer(item.manga).toJson()
 				val tags = JSONArray()
-				item.tags.forEach { tags.put(it.toJson()) }
+				item.tags.forEach { tags.put(JsonSerializer(it).toJson()) }
 				manga.put("tags", tags)
-				val json = item.history.toJson()
+				val json = JsonSerializer(item.history).toJson()
 				json.put("manga", manga)
 				entry.data.put(json)
 			}
@@ -40,7 +39,7 @@ class BackupRepository(private val db: MangaDatabase) {
 		val entry = BackupEntry(BackupEntry.CATEGORIES, JSONArray())
 		val categories = db.favouriteCategoriesDao.findAll()
 		for (item in categories) {
-			entry.data.put(item.toJson())
+			entry.data.put(JsonSerializer(item).toJson())
 		}
 		return entry
 	}
@@ -55,11 +54,11 @@ class BackupRepository(private val db: MangaDatabase) {
 			}
 			offset += favourites.size
 			for (item in favourites) {
-				val manga = item.manga.toJson()
+				val manga = JsonSerializer(item.manga).toJson()
 				val tags = JSONArray()
-				item.tags.forEach { tags.put(it.toJson()) }
+				item.tags.forEach { tags.put(JsonSerializer(it).toJson()) }
 				manga.put("tags", tags)
-				val json = item.favourite.toJson()
+				val json = JsonSerializer(item.favourite).toJson()
 				json.put("manga", manga)
 				entry.data.put(json)
 			}
@@ -77,60 +76,54 @@ class BackupRepository(private val db: MangaDatabase) {
 		return entry
 	}
 
-	private fun MangaEntity.toJson(): JSONObject {
-		val jo = JSONObject()
-		jo.put("id", id)
-		jo.put("title", title)
-		jo.put("alt_title", altTitle)
-		jo.put("url", url)
-		jo.put("public_url", publicUrl)
-		jo.put("rating", rating)
-		jo.put("nsfw", isNsfw)
-		jo.put("cover_url", coverUrl)
-		jo.put("large_cover_url", largeCoverUrl)
-		jo.put("state", state)
-		jo.put("author", author)
-		jo.put("source", source)
-		return jo
+	suspend fun restoreHistory(entry: BackupEntry): CompositeResult {
+		val result = CompositeResult()
+		for (item in entry.data.JSONIterator()) {
+			val mangaJson = item.getJSONObject("manga")
+			val manga = JsonDeserializer(mangaJson).toMangaEntity()
+			val tags = mangaJson.getJSONArray("tags").mapJSON {
+				JsonDeserializer(it).toTagEntity()
+			}
+			val history = JsonDeserializer(item).toHistoryEntity()
+			result += runCatchingCancellable {
+				db.withTransaction {
+					db.tagsDao.upsert(tags)
+					db.mangaDao.upsert(manga, tags)
+					db.historyDao.upsert(history)
+				}
+			}
+		}
+		return result
 	}
 
-	private fun TagEntity.toJson(): JSONObject {
-		val jo = JSONObject()
-		jo.put("id", id)
-		jo.put("title", title)
-		jo.put("key", key)
-		jo.put("source", source)
-		return jo
+	suspend fun restoreCategories(entry: BackupEntry): CompositeResult {
+		val result = CompositeResult()
+		for (item in entry.data.JSONIterator()) {
+			val category = JsonDeserializer(item).toFavouriteCategoryEntity()
+			result += runCatchingCancellable {
+				db.favouriteCategoriesDao.upsert(category)
+			}
+		}
+		return result
 	}
 
-	private fun HistoryEntity.toJson(): JSONObject {
-		val jo = JSONObject()
-		jo.put("manga_id", mangaId)
-		jo.put("created_at", createdAt)
-		jo.put("updated_at", updatedAt)
-		jo.put("chapter_id", chapterId)
-		jo.put("page", page)
-		jo.put("scroll", scroll)
-		jo.put("percent", percent)
-		return jo
-	}
-
-	private fun FavouriteCategoryEntity.toJson(): JSONObject {
-		val jo = JSONObject()
-		jo.put("category_id", categoryId)
-		jo.put("created_at", createdAt)
-		jo.put("sort_key", sortKey)
-		jo.put("title", title)
-		jo.put("order", order)
-		jo.put("track", track)
-		return jo
-	}
-
-	private fun FavouriteEntity.toJson(): JSONObject {
-		val jo = JSONObject()
-		jo.put("manga_id", mangaId)
-		jo.put("category_id", categoryId)
-		jo.put("created_at", createdAt)
-		return jo
+	suspend fun restoreFavourites(entry: BackupEntry): CompositeResult {
+		val result = CompositeResult()
+		for (item in entry.data.JSONIterator()) {
+			val mangaJson = item.getJSONObject("manga")
+			val manga = JsonDeserializer(mangaJson).toMangaEntity()
+			val tags = mangaJson.getJSONArray("tags").mapJSON {
+				JsonDeserializer(it).toTagEntity()
+			}
+			val favourite = JsonDeserializer(item).toFavouriteEntity()
+			result += runCatchingCancellable {
+				db.withTransaction {
+					db.tagsDao.upsert(tags)
+					db.mangaDao.upsert(manga, tags)
+					db.favouritesDao.upsert(favourite)
+				}
+			}
+		}
+		return result
 	}
 }

app/src/main/java/org/koitharu/kotatsu/core/backup/JsonDeserializer.kt

@@ -0,0 +1,62 @@
+package org.koitharu.kotatsu.core.backup
+
+import org.json.JSONObject
+import org.koitharu.kotatsu.core.db.entity.MangaEntity
+import org.koitharu.kotatsu.core.db.entity.TagEntity
+import org.koitharu.kotatsu.favourites.data.FavouriteCategoryEntity
+import org.koitharu.kotatsu.favourites.data.FavouriteEntity
+import org.koitharu.kotatsu.history.data.HistoryEntity
+import org.koitharu.kotatsu.parsers.model.SortOrder
+import org.koitharu.kotatsu.parsers.util.json.getBooleanOrDefault
+import org.koitharu.kotatsu.parsers.util.json.getFloatOrDefault
+import org.koitharu.kotatsu.parsers.util.json.getStringOrNull
+
+class JsonDeserializer(private val json: JSONObject) {
+
+	fun toFavouriteEntity() = FavouriteEntity(
+		mangaId = json.getLong("manga_id"),
+		categoryId = json.getLong("category_id"),
+		createdAt = json.getLong("created_at"),
+	)
+
+	fun toMangaEntity() = MangaEntity(
+		id = json.getLong("id"),
+		title = json.getString("title"),
+		altTitle = json.getStringOrNull("alt_title"),
+		url = json.getString("url"),
+		publicUrl = json.getStringOrNull("public_url").orEmpty(),
+		rating = json.getDouble("rating").toFloat(),
+		isNsfw = json.getBooleanOrDefault("nsfw", false),
+		coverUrl = json.getString("cover_url"),
+		largeCoverUrl = json.getStringOrNull("large_cover_url"),
+		state = json.getStringOrNull("state"),
+		author = json.getStringOrNull("author"),
+		source = json.getString("source")
+	)
+
+	fun toTagEntity() = TagEntity(
+		id = json.getLong("id"),
+		title = json.getString("title"),
+		key = json.getString("key"),
+		source = json.getString("source")
+	)
+
+	fun toHistoryEntity() = HistoryEntity(
+		mangaId = json.getLong("manga_id"),
+		createdAt = json.getLong("created_at"),
+		updatedAt = json.getLong("updated_at"),
+		chapterId = json.getLong("chapter_id"),
+		page = json.getInt("page"),
+		scroll = json.getDouble("scroll").toFloat(),
+		percent = json.getFloatOrDefault("percent", -1f),
+	)
+
+	fun toFavouriteCategoryEntity() = FavouriteCategoryEntity(
+		categoryId = json.getInt("category_id"),
+		createdAt = json.getLong("created_at"),
+		sortKey = json.getInt("sort_key"),
+		title = json.getString("title"),
+		order = json.getStringOrNull("order") ?: SortOrder.NEWEST.name,
+		track = json.getBooleanOrDefault("track", true),
+	)
+}

app/src/main/java/org/koitharu/kotatsu/core/backup/JsonSerializer.kt

@@ -0,0 +1,70 @@
+package org.koitharu.kotatsu.core.backup
+
+import org.json.JSONObject
+import org.koitharu.kotatsu.core.db.entity.MangaEntity
+import org.koitharu.kotatsu.core.db.entity.TagEntity
+import org.koitharu.kotatsu.favourites.data.FavouriteCategoryEntity
+import org.koitharu.kotatsu.favourites.data.FavouriteEntity
+import org.koitharu.kotatsu.history.data.HistoryEntity
+
+class JsonSerializer private constructor(private val json: JSONObject) {
+
+	constructor(e: FavouriteEntity) : this(
+		JSONObject().apply {
+			put("manga_id", e.mangaId)
+			put("category_id", e.categoryId)
+			put("created_at", e.createdAt)
+		}
+	)
+
+	constructor(e: FavouriteCategoryEntity) : this(
+		JSONObject().apply {
+			put("category_id", e.categoryId)
+			put("created_at", e.createdAt)
+			put("sort_key", e.sortKey)
+			put("title", e.title)
+			put("order", e.order)
+			put("track", e.track)
+		}
+	)
+
+	constructor(e: HistoryEntity) : this(
+		JSONObject().apply {
+			put("manga_id", e.mangaId)
+			put("created_at", e.createdAt)
+			put("updated_at", e.updatedAt)
+			put("chapter_id", e.chapterId)
+			put("page", e.page)
+			put("scroll", e.scroll)
+			put("percent", e.percent)
+		}
+	)
+
+	constructor(e: TagEntity) : this(
+		JSONObject().apply {
+			put("id", e.id)
+			put("title", e.title)
+			put("key", e.key)
+			put("source", e.source)
+		}
+	)
+
+	constructor(e: MangaEntity) : this(
+		JSONObject().apply {
+			put("id", e.id)
+			put("title", e.title)
+			put("alt_title", e.altTitle)
+			put("url", e.url)
+			put("public_url", e.publicUrl)
+			put("rating", e.rating)
+			put("nsfw", e.isNsfw)
+			put("cover_url", e.coverUrl)
+			put("large_cover_url", e.largeCoverUrl)
+			put("state", e.state)
+			put("author", e.author)
+			put("source", e.source)
+		}
+	)
+
+	fun toJson(): JSONObject = json
+}

app/src/main/java/org/koitharu/kotatsu/core/backup/RestoreRepository.kt

@@ -1,113 +0,0 @@
-package org.koitharu.kotatsu.core.backup
-
-import androidx.room.withTransaction
-import org.json.JSONObject
-import org.koitharu.kotatsu.core.db.MangaDatabase
-import org.koitharu.kotatsu.core.db.entity.MangaEntity
-import org.koitharu.kotatsu.core.db.entity.TagEntity
-import org.koitharu.kotatsu.favourites.data.FavouriteCategoryEntity
-import org.koitharu.kotatsu.favourites.data.FavouriteEntity
-import org.koitharu.kotatsu.history.data.HistoryEntity
-import org.koitharu.kotatsu.parsers.model.SortOrder
-import org.koitharu.kotatsu.parsers.util.json.*
-
-class RestoreRepository(private val db: MangaDatabase) {
-
-	suspend fun upsertHistory(entry: BackupEntry): CompositeResult {
-		val result = CompositeResult()
-		for (item in entry.data.JSONIterator()) {
-			val mangaJson = item.getJSONObject("manga")
-			val manga = parseManga(mangaJson)
-			val tags = mangaJson.getJSONArray("tags").mapJSON {
-				parseTag(it)
-			}
-			val history = parseHistory(item)
-			result += runCatching {
-				db.withTransaction {
-					db.tagsDao.upsert(tags)
-					db.mangaDao.upsert(manga, tags)
-					db.historyDao.upsert(history)
-				}
-			}
-		}
-		return result
-	}
-
-	suspend fun upsertCategories(entry: BackupEntry): CompositeResult {
-		val result = CompositeResult()
-		for (item in entry.data.JSONIterator()) {
-			val category = parseCategory(item)
-			result += runCatching {
-				db.favouriteCategoriesDao.upsert(category)
-			}
-		}
-		return result
-	}
-
-	suspend fun upsertFavourites(entry: BackupEntry): CompositeResult {
-		val result = CompositeResult()
-		for (item in entry.data.JSONIterator()) {
-			val mangaJson = item.getJSONObject("manga")
-			val manga = parseManga(mangaJson)
-			val tags = mangaJson.getJSONArray("tags").mapJSON {
-				parseTag(it)
-			}
-			val favourite = parseFavourite(item)
-			result += runCatching {
-				db.withTransaction {
-					db.tagsDao.upsert(tags)
-					db.mangaDao.upsert(manga, tags)
-					db.favouritesDao.upsert(favourite)
-				}
-			}
-		}
-		return result
-	}
-
-	private fun parseManga(json: JSONObject) = MangaEntity(
-		id = json.getLong("id"),
-		title = json.getString("title"),
-		altTitle = json.getStringOrNull("alt_title"),
-		url = json.getString("url"),
-		publicUrl = json.getStringOrNull("public_url").orEmpty(),
-		rating = json.getDouble("rating").toFloat(),
-		isNsfw = json.getBooleanOrDefault("nsfw", false),
-		coverUrl = json.getString("cover_url"),
-		largeCoverUrl = json.getStringOrNull("large_cover_url"),
-		state = json.getStringOrNull("state"),
-		author = json.getStringOrNull("author"),
-		source = json.getString("source")
-	)
-
-	private fun parseTag(json: JSONObject) = TagEntity(
-		id = json.getLong("id"),
-		title = json.getString("title"),
-		key = json.getString("key"),
-		source = json.getString("source")
-	)
-
-	private fun parseHistory(json: JSONObject) = HistoryEntity(
-		mangaId = json.getLong("manga_id"),
-		createdAt = json.getLong("created_at"),
-		updatedAt = json.getLong("updated_at"),
-		chapterId = json.getLong("chapter_id"),
-		page = json.getInt("page"),
-		scroll = json.getDouble("scroll").toFloat(),
-		percent = json.getFloatOrDefault("percent", -1f),
-	)
-
-	private fun parseCategory(json: JSONObject) = FavouriteCategoryEntity(
-		categoryId = json.getInt("category_id"),
-		createdAt = json.getLong("created_at"),
-		sortKey = json.getInt("sort_key"),
-		title = json.getString("title"),
-		order = json.getStringOrNull("order") ?: SortOrder.NEWEST.name,
-		track = json.getBooleanOrDefault("track", true),
-	)
-
-	private fun parseFavourite(json: JSONObject) = FavouriteEntity(
-		mangaId = json.getLong("manga_id"),
-		categoryId = json.getLong("category_id"),
-		createdAt = json.getLong("created_at")
-	)
-}

app/src/main/java/org/koitharu/kotatsu/core/db/MangaDatabase.kt

@@ -4,6 +4,7 @@ import android.content.Context
 import androidx.room.Database
 import androidx.room.Room
 import androidx.room.RoomDatabase
+import androidx.room.migration.Migration
 import org.koitharu.kotatsu.bookmarks.data.BookmarkEntity
 import org.koitharu.kotatsu.bookmarks.data.BookmarksDao
 import org.koitharu.kotatsu.core.db.dao.MangaDao
@@ -29,6 +30,8 @@ import org.koitharu.kotatsu.tracker.data.TrackEntity
 import org.koitharu.kotatsu.tracker.data.TrackLogEntity
 import org.koitharu.kotatsu.tracker.data.TracksDao
 
+const val DATABASE_VERSION = 12
+
 @Database(
 	entities = [
 		MangaEntity::class, TagEntity::class, HistoryEntity::class, MangaTagsEntity::class,
@@ -36,7 +39,7 @@ import org.koitharu.kotatsu.tracker.data.TracksDao
 		TrackEntity::class, TrackLogEntity::class, SuggestionEntity::class, BookmarkEntity::class,
 		ScrobblingEntity::class,
 	],
-	version = 12,
+	version = DATABASE_VERSION,
 )
 abstract class MangaDatabase : RoomDatabase() {
 
@@ -63,22 +66,23 @@ abstract class MangaDatabase : RoomDatabase() {
 	abstract val scrobblingDao: ScrobblingDao
 }
 
-fun MangaDatabase(context: Context): MangaDatabase = Room.databaseBuilder(
-	context,
-	MangaDatabase::class.java,
-	"kotatsu-db"
-).addMigrations(
-	Migration1To2(),
-	Migration2To3(),
-	Migration3To4(),
-	Migration4To5(),
-	Migration5To6(),
-	Migration6To7(),
-	Migration7To8(),
-	Migration8To9(),
-	Migration9To10(),
-	Migration10To11(),
-	Migration11To12(),
-).addCallback(
-	DatabasePrePopulateCallback(context.resources)
-).build()
+val databaseMigrations: Array<Migration>
+	get() = arrayOf(
+		Migration1To2(),
+		Migration2To3(),
+		Migration3To4(),
+		Migration4To5(),
+		Migration5To6(),
+		Migration6To7(),
+		Migration7To8(),
+		Migration8To9(),
+		Migration9To10(),
+		Migration10To11(),
+		Migration11To12(),
+	)
+
+fun MangaDatabase(context: Context): MangaDatabase = Room
+	.databaseBuilder(context, MangaDatabase::class.java, "kotatsu-db")
+	.addMigrations(*databaseMigrations)
+	.addCallback(DatabasePrePopulateCallback(context.resources))
+	.build()

app/src/main/java/org/koitharu/kotatsu/core/db/Tables.kt

@@ -0,0 +1,9 @@
+package org.koitharu.kotatsu.core.db
+
+
+const val TABLE_FAVOURITES = "favourites"
+const val TABLE_MANGA = "manga"
+const val TABLE_TAGS = "tags"
+const val TABLE_FAVOURITE_CATEGORIES = "favourite_categories"
+const val TABLE_HISTORY = "history"
+const val TABLE_MANGA_TAGS = "manga_tags"

app/src/main/java/org/koitharu/kotatsu/core/db/entity/MangaEntity.kt

@@ -3,9 +3,10 @@ package org.koitharu.kotatsu.core.db.entity
 import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.PrimaryKey
+import org.koitharu.kotatsu.core.db.TABLE_MANGA
 
-@Entity(tableName = "manga")
-class MangaEntity(
+@Entity(tableName = TABLE_MANGA)
+data class MangaEntity(
 	@PrimaryKey(autoGenerate = false)
 	@ColumnInfo(name = "manga_id") val id: Long,
 	@ColumnInfo(name = "title") val title: String,
@@ -18,5 +19,5 @@ class MangaEntity(
 	@ColumnInfo(name = "large_cover_url") val largeCoverUrl: String?,
 	@ColumnInfo(name = "state") val state: String?,
 	@ColumnInfo(name = "author") val author: String?,
-	@ColumnInfo(name = "source") val source: String
+	@ColumnInfo(name = "source") val source: String,
 )

app/src/main/java/org/koitharu/kotatsu/core/db/entity/MangaTagsEntity.kt

@@ -3,9 +3,11 @@ package org.koitharu.kotatsu.core.db.entity
 import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.ForeignKey
+import org.koitharu.kotatsu.core.db.TABLE_MANGA_TAGS
 
 @Entity(
-	tableName = "manga_tags", primaryKeys = ["manga_id", "tag_id"],
+	tableName = TABLE_MANGA_TAGS,
+	primaryKeys = ["manga_id", "tag_id"],
 	foreignKeys = [
 		ForeignKey(
 			entity = MangaEntity::class,
@@ -23,5 +25,5 @@ import androidx.room.ForeignKey
 )
 class MangaTagsEntity(
 	@ColumnInfo(name = "manga_id", index = true) val mangaId: Long,
-	@ColumnInfo(name = "tag_id", index = true) val tagId: Long
+	@ColumnInfo(name = "tag_id", index = true) val tagId: Long,
 )

app/src/main/java/org/koitharu/kotatsu/core/db/entity/TagEntity.kt

@@ -3,12 +3,13 @@ package org.koitharu.kotatsu.core.db.entity
 import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.PrimaryKey
+import org.koitharu.kotatsu.core.db.TABLE_TAGS
 
-@Entity(tableName = "tags")
-class TagEntity(
+@Entity(tableName = TABLE_TAGS)
+data class TagEntity(
 	@PrimaryKey(autoGenerate = false)
 	@ColumnInfo(name = "tag_id") val id: Long,
 	@ColumnInfo(name = "title") val title: String,
 	@ColumnInfo(name = "key") val key: String,
-	@ColumnInfo(name = "source") val source: String
+	@ColumnInfo(name = "source") val source: String,
 )

app/src/main/java/org/koitharu/kotatsu/core/exceptions/CaughtException.kt

@@ -0,0 +1,3 @@
+package org.koitharu.kotatsu.core.exceptions
+
+class CaughtException(cause: Throwable, override val message: String?) : RuntimeException(cause)

app/src/main/java/org/koitharu/kotatsu/core/exceptions/MangaNotFoundException.kt

@@ -1,3 +0,0 @@
-package org.koitharu.kotatsu.core.exceptions
-
-class MangaNotFoundException(s: String? = null) : RuntimeException(s)

app/src/main/java/org/koitharu/kotatsu/core/exceptions/resolve/ExceptionResolver.kt

@@ -8,9 +8,11 @@ import androidx.fragment.app.Fragment
 import androidx.fragment.app.FragmentActivity
 import kotlinx.coroutines.suspendCancellableCoroutine
 import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.browser.BrowserActivity
 import org.koitharu.kotatsu.browser.cloudflare.CloudFlareDialog
 import org.koitharu.kotatsu.core.exceptions.CloudFlareProtectedException
 import org.koitharu.kotatsu.parsers.exception.AuthRequiredException
+import org.koitharu.kotatsu.parsers.exception.NotFoundException
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.settings.sources.auth.SourceAuthActivity
 import org.koitharu.kotatsu.utils.TaggedActivityResult
@@ -43,6 +45,10 @@ class ExceptionResolver private constructor(
 	suspend fun resolve(e: Throwable): Boolean = when (e) {
 		is CloudFlareProtectedException -> resolveCF(e.url)
 		is AuthRequiredException -> resolveAuthException(e.source)
+		is NotFoundException -> {
+			openInBrowser(e.url)
+			false
+		}
 		else -> false
 	}
 
@@ -69,6 +75,11 @@ class ExceptionResolver private constructor(
 		sourceAuthContract.launch(source)
 	}
 
+	private fun openInBrowser(url: String) {
+		val context = activity ?: fragment?.activity ?: return
+		context.startActivity(BrowserActivity.newIntent(context, url, null))
+	}
+
 	private fun getFragmentManager() = checkNotNull(fragment?.childFragmentManager ?: activity?.supportFragmentManager)
 
 	companion object {
@@ -77,6 +88,7 @@ class ExceptionResolver private constructor(
 		fun getResolveStringId(e: Throwable) = when (e) {
 			is CloudFlareProtectedException -> R.string.captcha_solve
 			is AuthRequiredException -> R.string.sign_in
+			is NotFoundException -> if (e.url.isNotEmpty()) R.string.open_in_browser else 0
 			else -> 0
 		}
 

app/src/main/java/org/koitharu/kotatsu/core/github/GithubRepository.kt

@@ -10,7 +10,7 @@ class GithubRepository(private val okHttp: OkHttpClient) {
 	suspend fun getLatestVersion(): AppVersion {
 		val request = Request.Builder()
 			.get()
-			.url("https://api.github.com/repos/nv95/Kotatsu/releases/latest")
+			.url("https://api.github.com/repos/KotatsuApp/Kotatsu/releases/latest")
 		val json = okHttp.newCall(request.build()).await().parseJson()
 		val asset = json.getJSONArray("assets").getJSONObject(0)
 		return AppVersion(

app/src/main/java/org/koitharu/kotatsu/core/model/Manga.kt

@@ -1,6 +1,34 @@
 package org.koitharu.kotatsu.core.model
 
+import androidx.core.os.LocaleListCompat
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.util.mapToSet
+import org.koitharu.kotatsu.parsers.util.toTitleCase
+import org.koitharu.kotatsu.utils.ext.iterator
 
-fun Collection<Manga>.ids() = mapToSet { it.id }
+fun Collection<Manga>.ids() = mapToSet { it.id }
+
+fun Manga.getPreferredBranch(history: MangaHistory?): String? {
+	val ch = chapters
+	if (ch.isNullOrEmpty()) {
+		return null
+	}
+	if (history != null) {
+		val currentChapter = ch.find { it.id == history.chapterId }
+		if (currentChapter != null) {
+			return currentChapter.branch
+		}
+	}
+	val groups = ch.groupBy { it.branch }
+	for (locale in LocaleListCompat.getAdjustedDefault()) {
+		var language = locale.getDisplayLanguage(locale).toTitleCase(locale)
+		if (groups.containsKey(language)) {
+			return language
+		}
+		language = locale.getDisplayName(locale).toTitleCase(locale)
+		if (groups.containsKey(language)) {
+			return language
+		}
+	}
+	return groups.maxByOrNull { it.value.size }?.key
+}

app/src/main/java/org/koitharu/kotatsu/core/model/MangaSource.kt

@@ -1,10 +1,18 @@
 package org.koitharu.kotatsu.core.model
 
+import java.util.*
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.util.toTitleCase
-import java.util.*
 
 fun MangaSource.getLocaleTitle(): String? {
 	val lc = Locale(locale ?: return null)
 	return lc.getDisplayLanguage(lc).toTitleCase(lc)
+}
+
+@Suppress("FunctionName")
+fun MangaSource(name: String): MangaSource? {
+	MangaSource.values().forEach {
+		if (it.name == name) return it
+	}
+	return null
 }

app/src/main/java/org/koitharu/kotatsu/core/model/parcelable/ParcelableManga.kt

@@ -6,7 +6,7 @@ import org.koitharu.kotatsu.parsers.model.Manga
 
 // Limits to avoid TransactionTooLargeException
 private const val MAX_SAFE_SIZE = 1024 * 512 // Assume that 512 kb is safe parcel size
-private const val MAX_SAFE_CHAPTERS_COUNT = 40 // this is 100% safe
+private const val MAX_SAFE_CHAPTERS_COUNT = 32 // this is 100% safe
 
 class ParcelableManga(
 	val manga: Manga,

app/src/main/java/org/koitharu/kotatsu/core/network/DoHManager.kt

@@ -21,7 +21,12 @@ class DoHManager(
 	private var cachedProvider: DoHProvider? = null
 
 	override fun lookup(hostname: String): List<InetAddress> {
-		return getDelegate().lookup(hostname)
+		return try {
+			getDelegate().lookup(hostname)
+		} catch (e: UnknownHostException) {
+			// fallback
+			Dns.SYSTEM.lookup(hostname)
+		}
 	}
 
 	@Synchronized
@@ -40,6 +45,7 @@ class DoHManager(
 		DoHProvider.NONE -> Dns.SYSTEM
 		DoHProvider.GOOGLE -> DnsOverHttps.Builder().client(bootstrapClient)
 			.url("https://dns.google/dns-query".toHttpUrl())
+			.resolvePrivateAddresses(true)
 			.bootstrapDnsHosts(
 				listOfNotNull(
 					tryGetByIp("8.8.4.4"),
@@ -50,6 +56,7 @@ class DoHManager(
 			).build()
 		DoHProvider.CLOUDFLARE -> DnsOverHttps.Builder().client(bootstrapClient)
 			.url("https://cloudflare-dns.com/dns-query".toHttpUrl())
+			.resolvePrivateAddresses(true)
 			.bootstrapDnsHosts(
 				listOfNotNull(
 					tryGetByIp("162.159.36.1"),
@@ -65,6 +72,7 @@ class DoHManager(
 			).build()
 		DoHProvider.ADGUARD -> DnsOverHttps.Builder().client(bootstrapClient)
 			.url("https://dns-unfiltered.adguard.com/dns-query".toHttpUrl())
+			.resolvePrivateAddresses(true)
 			.bootstrapDnsHosts(
 				listOfNotNull(
 					tryGetByIp("94.140.14.140"),
@@ -81,4 +89,4 @@ class DoHManager(
 		e.printStackTraceDebug()
 		null
 	}
-}
+}

app/src/main/java/org/koitharu/kotatsu/core/network/WebViewClientCompat.kt

@@ -1,86 +0,0 @@
-package org.koitharu.kotatsu.core.network
-
-import android.annotation.TargetApi
-import android.os.Build
-import android.webkit.*
-
-@Suppress("OverridingDeprecatedMember")
-abstract class WebViewClientCompat : WebViewClient() {
-
-	open fun shouldOverrideUrlCompat(view: WebView, url: String): Boolean {
-		return false
-	}
-
-	open fun shouldInterceptRequestCompat(view: WebView, url: String): WebResourceResponse? {
-		return null
-	}
-
-	open fun onReceivedErrorCompat(
-		view: WebView,
-		errorCode: Int,
-		description: String?,
-		failingUrl: String,
-		isMainFrame: Boolean
-	) {
-	}
-
-	@TargetApi(Build.VERSION_CODES.N)
-	final override fun shouldOverrideUrlLoading(
-		view: WebView,
-		request: WebResourceRequest
-	): Boolean = shouldOverrideUrlCompat(view, request.url.toString())
-
-	final override fun shouldOverrideUrlLoading(view: WebView, url: String): Boolean {
-		return shouldOverrideUrlCompat(view, url)
-	}
-
-	final override fun shouldInterceptRequest(
-		view: WebView,
-		request: WebResourceRequest
-	): WebResourceResponse? = shouldInterceptRequestCompat(view, request.url.toString())
-
-	final override fun shouldInterceptRequest(
-		view: WebView,
-		url: String
-	): WebResourceResponse? = shouldInterceptRequestCompat(view, url)
-
-	@TargetApi(Build.VERSION_CODES.M)
-	final override fun onReceivedError(
-		view: WebView,
-		request: WebResourceRequest,
-		error: WebResourceError
-	) {
-		onReceivedErrorCompat(
-			view,
-			error.errorCode,
-			error.description?.toString(),
-			request.url.toString(),
-			request.isForMainFrame
-		)
-	}
-
-	final override fun onReceivedError(
-		view: WebView,
-		errorCode: Int,
-		description: String?,
-		failingUrl: String
-	) {
-		onReceivedErrorCompat(view, errorCode, description, failingUrl, failingUrl == view.url)
-	}
-
-	@TargetApi(Build.VERSION_CODES.M)
-	final override fun onReceivedHttpError(
-		view: WebView,
-		request: WebResourceRequest,
-		error: WebResourceResponse
-	) {
-		onReceivedErrorCompat(
-			view,
-			error.statusCode,
-			error.reasonPhrase,
-			request.url
-				.toString(),
-			request.isForMainFrame
-		)
-	}
-}

app/src/main/java/org/koitharu/kotatsu/core/os/ShortcutsUpdater.kt

@@ -6,62 +6,84 @@ import android.content.pm.ShortcutManager
 import android.media.ThumbnailUtils
 import android.os.Build
 import android.util.Size
+import androidx.annotation.RequiresApi
+import androidx.annotation.VisibleForTesting
 import androidx.core.content.pm.ShortcutInfoCompat
 import androidx.core.content.pm.ShortcutManagerCompat
 import androidx.core.graphics.drawable.IconCompat
+import androidx.room.InvalidationTracker
 import coil.ImageLoader
 import coil.request.ImageRequest
 import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.withContext
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.launch
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.base.domain.MangaDataRepository
+import org.koitharu.kotatsu.core.db.TABLE_HISTORY
 import org.koitharu.kotatsu.history.domain.HistoryRepository
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.reader.ui.ReaderActivity
+import org.koitharu.kotatsu.utils.ext.printStackTraceDebug
+import org.koitharu.kotatsu.utils.ext.processLifecycleScope
 import org.koitharu.kotatsu.utils.ext.requireBitmap
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable
 
-class ShortcutsRepository(
+class ShortcutsUpdater(
 	private val context: Context,
 	private val coil: ImageLoader,
 	private val historyRepository: HistoryRepository,
 	private val mangaRepository: MangaDataRepository,
-) {
+) : InvalidationTracker.Observer(TABLE_HISTORY) {
 
-	private val iconSize by lazy {
-		getIconSize(context)
-	}
+	private val iconSize by lazy { getIconSize(context) }
+	private var shortcutsUpdateJob: Job? = null
 
-	suspend fun updateShortcuts() {
-		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N_MR1) return
-		val manager = context.getSystemService(Context.SHORTCUT_SERVICE) as ShortcutManager
-		val shortcuts = historyRepository.getList(0, manager.maxShortcutCountPerActivity)
-			.filter { x -> x.title.isNotEmpty() }
-			.map { buildShortcutInfo(it).build().toShortcutInfo() }
-		manager.dynamicShortcuts = shortcuts
+	override fun onInvalidated(tables: MutableSet<String>) {
+		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N_MR1) {
+			val prevJob = shortcutsUpdateJob
+			shortcutsUpdateJob = processLifecycleScope.launch(Dispatchers.Default) {
+				prevJob?.join()
+				updateShortcutsImpl()
+			}
+		}
 	}
 
 	suspend fun requestPinShortcut(manga: Manga): Boolean {
 		return ShortcutManagerCompat.requestPinShortcut(
 			context,
 			buildShortcutInfo(manga).build(),
-			null
+			null,
 		)
 	}
 
+	@VisibleForTesting
+	suspend fun await(): Boolean {
+		return shortcutsUpdateJob?.join() != null
+	}
+
+	@RequiresApi(Build.VERSION_CODES.N_MR1)
+	private suspend fun updateShortcutsImpl() = runCatchingCancellable {
+		val manager = context.getSystemService(Context.SHORTCUT_SERVICE) as ShortcutManager
+		val shortcuts = historyRepository.getList(0, manager.maxShortcutCountPerActivity)
+			.filter { x -> x.title.isNotEmpty() }
+			.map { buildShortcutInfo(it).build().toShortcutInfo() }
+		manager.dynamicShortcuts = shortcuts
+	}.onFailure {
+		it.printStackTraceDebug()
+	}
+
 	private suspend fun buildShortcutInfo(manga: Manga): ShortcutInfoCompat.Builder {
-		val icon = runCatching {
-			withContext(Dispatchers.IO) {
-				val bmp = coil.execute(
-					ImageRequest.Builder(context)
-						.data(manga.coverUrl)
-						.size(iconSize.width, iconSize.height)
-						.build()
-				).requireBitmap()
-				ThumbnailUtils.extractThumbnail(bmp, iconSize.width, iconSize.height, 0)
-			}
+		val icon = runCatchingCancellable {
+			val bmp = coil.execute(
+				ImageRequest.Builder(context)
+					.data(manga.coverUrl)
+					.size(iconSize.width, iconSize.height)
+					.build(),
+			).requireBitmap()
+			ThumbnailUtils.extractThumbnail(bmp, iconSize.width, iconSize.height, 0)
 		}.fold(
 			onSuccess = { IconCompat.createWithAdaptiveBitmap(it) },
-			onFailure = { IconCompat.createWithResource(context, R.drawable.ic_shortcut_default) }
+			onFailure = { IconCompat.createWithResource(context, R.drawable.ic_shortcut_default) },
 		)
 		mangaRepository.storeManga(manga)
 		return ShortcutInfoCompat.Builder(context, manga.id.toString())
@@ -70,7 +92,7 @@ class ShortcutsRepository(
 			.setIcon(icon)
 			.setIntent(
 				ReaderActivity.newIntent(context, manga.id)
-					.setAction(ReaderActivity.ACTION_MANGA_READ)
+					.setAction(ReaderActivity.ACTION_MANGA_READ),
 			)
 	}
 

app/src/main/java/org/koitharu/kotatsu/core/parser/FaviconMapper.kt

@@ -5,7 +5,7 @@ import coil.map.Mapper
 import coil.request.Options
 import okhttp3.HttpUrl
 import okhttp3.HttpUrl.Companion.toHttpUrl
-import org.koitharu.kotatsu.parsers.model.MangaSource
+import org.koitharu.kotatsu.core.model.MangaSource
 
 class FaviconMapper : Mapper<Uri, HttpUrl> {
 
@@ -13,7 +13,7 @@ class FaviconMapper : Mapper<Uri, HttpUrl> {
 		if (data.scheme != "favicon") {
 			return null
 		}
-		val mangaSource = MangaSource.valueOf(data.schemeSpecificPart)
+		val mangaSource = MangaSource(data.schemeSpecificPart) ?: return null
 		val repo = MangaRepository(mangaSource) as RemoteMangaRepository
 		return repo.getFaviconUrl().toHttpUrl()
 	}

app/src/main/java/org/koitharu/kotatsu/core/prefs/AppSettings.kt

@@ -14,9 +14,6 @@ import java.io.File
 import java.text.DateFormat
 import java.text.SimpleDateFormat
 import java.util.*
-import kotlinx.coroutines.channels.awaitClose
-import kotlinx.coroutines.channels.trySendBlocking
-import kotlinx.coroutines.flow.callbackFlow
 import org.koitharu.kotatsu.BuildConfig
 import org.koitharu.kotatsu.core.model.ZoomMode
 import org.koitharu.kotatsu.core.network.DoHProvider
@@ -64,6 +61,9 @@ class AppSettings(context: Context) {
 	val readerPageSwitch: Set<String>
 		get() = prefs.getStringSet(KEY_READER_SWITCHERS, null) ?: setOf(PAGE_SWITCH_TAPS)
 
+	val isReaderTapsAdaptive: Boolean
+		get() = !prefs.getBoolean(KEY_READER_TAPS_LTR, false)
+
 	var isTrafficWarningEnabled: Boolean
 		get() = prefs.getBoolean(KEY_TRAFFIC_WARNING, true)
 		set(value) = prefs.edit { putBoolean(KEY_TRAFFIC_WARNING, value) }
@@ -314,6 +314,7 @@ class AppSettings(context: Context) {
 		const val KEY_DOWNLOADS_SLOWDOWN = "downloads_slowdown"
 		const val KEY_ALL_FAVOURITES_VISIBLE = "all_favourites_visible"
 		const val KEY_DOH = "doh"
+		const val KEY_READER_TAPS_LTR = "reader_taps_ltr"
 
 		// About
 		const val KEY_APP_UPDATE = "app_update"

app/src/main/java/org/koitharu/kotatsu/details/ui/ChaptersFragment.kt

@@ -12,6 +12,7 @@ import androidx.core.view.MenuProvider
 import androidx.core.view.isVisible
 import androidx.core.view.updatePadding
 import com.google.android.material.snackbar.Snackbar
+import kotlin.math.roundToInt
 import org.koin.androidx.viewmodel.ext.android.sharedViewModel
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.base.ui.BaseFragment
@@ -29,7 +30,6 @@ import org.koitharu.kotatsu.reader.ui.ReaderActivity
 import org.koitharu.kotatsu.reader.ui.ReaderState
 import org.koitharu.kotatsu.utils.RecyclerViewScrollCallback
 import org.koitharu.kotatsu.utils.ext.addMenuProvider
-import kotlin.math.roundToInt
 
 class ChaptersFragment :
 	BaseFragment<FragmentChaptersBinding>(),
@@ -46,7 +46,7 @@ class ChaptersFragment :
 
 	override fun onInflateView(
 		inflater: LayoutInflater,
-		container: ViewGroup?
+		container: ViewGroup?,
 	) = FragmentChaptersBinding.inflate(inflater, container, false)
 
 	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
@@ -98,7 +98,7 @@ class ChaptersFragment :
 				manga = viewModel.manga.value ?: return,
 				state = ReaderState(item.chapter.id, 0, 0),
 			),
-			options.toBundle()
+			options.toBundle(),
 		)
 	}
 
@@ -128,13 +128,33 @@ class ChaptersFragment :
 						Snackbar.make(
 							binding.recyclerViewChapters,
 							R.string.chapters_will_removed_background,
-							Snackbar.LENGTH_LONG
+							Snackbar.LENGTH_LONG,
 						).show()
 					}
 				}
 				mode.finish()
 				true
 			}
+			R.id.action_select_range -> {
+				val controller = selectionController ?: return false
+				val items = chaptersAdapter?.items ?: return false
+				val ids = HashSet(controller.peekCheckedIds())
+				val buffer = HashSet<Long>()
+				var isAdding = false
+				for (x in items) {
+					if (x.chapter.id in ids) {
+						isAdding = true
+						if (buffer.isNotEmpty()) {
+							ids.addAll(buffer)
+							buffer.clear()
+						}
+					} else if (isAdding) {
+						buffer.add(x.chapter.id)
+					}
+				}
+				controller.addAll(ids)
+				true
+			}
 			R.id.action_select_all -> {
 				val ids = chaptersAdapter?.items?.map { it.chapter.id } ?: return false
 				selectionController?.addAll(ids)
@@ -158,14 +178,24 @@ class ChaptersFragment :
 
 	override fun onPrepareActionMode(mode: ActionMode, menu: Menu): Boolean {
 		val selectedIds = selectionController?.peekCheckedIds() ?: return false
-		val items = chaptersAdapter?.items?.filter { x -> x.chapter.id in selectedIds }.orEmpty()
-		menu.findItem(R.id.action_save).isVisible = items.none { x ->
+		val allItems = chaptersAdapter?.items.orEmpty()
+		val items = allItems.withIndex().filter { (_, x) -> x.chapter.id in selectedIds }
+		menu.findItem(R.id.action_save).isVisible = items.none { (_, x) ->
 			x.chapter.source == MangaSource.LOCAL
 		}
-		menu.findItem(R.id.action_delete).isVisible = items.all { x ->
+		menu.findItem(R.id.action_delete).isVisible = items.all { (_, x) ->
 			x.chapter.source == MangaSource.LOCAL
 		}
+		menu.findItem(R.id.action_select_all).isVisible = items.size < allItems.size
 		mode.title = items.size.toString()
+		var hasGap = false
+		for (i in 0 until items.size - 1) {
+			if (items[i].index + 1 != items[i + 1].index) {
+				hasGap = true
+				break
+			}
+		}
+		menu.findItem(R.id.action_select_range).isVisible = hasGap
 		return true
 	}
 
@@ -241,8 +271,8 @@ class ChaptersFragment :
 		}
 
 		override fun onPrepareMenu(menu: Menu) {
-			menu.findItem(R.id.action_reversed).isChecked = viewModel.isChaptersReversed.value == true
-			menu.findItem(R.id.action_search).isVisible = viewModel.isChaptersEmpty.value == false
+			menu.findItem(R.id.action_reversed)?.isChecked = viewModel.isChaptersReversed.value == true
+			menu.findItem(R.id.action_search)?.isVisible = viewModel.isChaptersEmpty.value == false
 		}
 
 		override fun onMenuItemSelected(menuItem: MenuItem): Boolean = when (menuItem.itemId) {

app/src/main/java/org/koitharu/kotatsu/details/ui/DetailsActivity.kt

@@ -34,7 +34,7 @@ import org.koitharu.kotatsu.base.ui.BaseActivity
 import org.koitharu.kotatsu.browser.BrowserActivity
 import org.koitharu.kotatsu.core.exceptions.resolve.ExceptionResolver
 import org.koitharu.kotatsu.core.model.parcelable.ParcelableManga
-import org.koitharu.kotatsu.core.os.ShortcutsRepository
+import org.koitharu.kotatsu.core.os.ShortcutsUpdater
 import org.koitharu.kotatsu.databinding.ActivityDetailsBinding
 import org.koitharu.kotatsu.details.ui.adapter.BranchesAdapter
 import org.koitharu.kotatsu.download.ui.service.DownloadService
@@ -103,8 +103,9 @@ class DetailsActivity :
 
 	private fun onMangaRemoved(manga: Manga) {
 		Toast.makeText(
-			this, getString(R.string._s_deleted_from_local_storage, manga.title),
-			Toast.LENGTH_SHORT
+			this,
+			getString(R.string._s_deleted_from_local_storage, manga.title),
+			Toast.LENGTH_SHORT,
 		).show()
 		finishAfterTransition()
 	}
@@ -130,7 +131,7 @@ class DetailsActivity :
 					onActionClick = {
 						e.report("DetailsActivity::onError")
 						dismiss()
-					}
+					},
 				)
 			}
 			else -> {
@@ -141,14 +142,14 @@ class DetailsActivity :
 
 	override fun onWindowInsetsChanged(insets: Insets) {
 		binding.snackbar.updatePadding(
-			bottom = insets.bottom
+			bottom = insets.bottom,
 		)
 		binding.toolbar.updateLayoutParams<ViewGroup.MarginLayoutParams> {
 			topMargin = insets.top
 		}
 		binding.root.updatePadding(
 			left = insets.left,
-			right = insets.right
+			right = insets.right,
 		)
 	}
 
@@ -158,6 +159,7 @@ class DetailsActivity :
 			tab.removeBadge()
 		} else {
 			val badge = tab.orCreateBadge
+			badge.maxCharacterCount = 3
 			badge.number = newChapters
 			badge.isVisible = true
 		}
@@ -224,7 +226,7 @@ class DetailsActivity :
 		R.id.action_shortcut -> {
 			viewModel.manga.value?.let {
 				lifecycleScope.launch {
-					if (!get<ShortcutsRepository>().requestPinShortcut(it)) {
+					if (!get<ShortcutsUpdater>().requestPinShortcut(it)) {
 						binding.snackbar.show(getString(R.string.operation_not_supported))
 					}
 				}
@@ -274,8 +276,8 @@ class DetailsActivity :
 					ReaderActivity.newIntent(
 						context = this@DetailsActivity,
 						manga = remoteManga,
-						state = ReaderState(chapterId, 0, 0)
-					)
+						state = ReaderState(chapterId, 0, 0),
+					),
 				)
 			}
 			setNeutralButton(R.string.download) { _, _ ->
@@ -349,8 +351,8 @@ class DetailsActivity :
 			dialogBuilder.setMessage(
 				getString(
 					R.string.large_manga_save_confirm,
-					resources.getQuantityString(R.plurals.chapters, chaptersCount, chaptersCount)
-				)
+					resources.getQuantityString(R.plurals.chapters, chaptersCount, chaptersCount),
+				),
 			).setPositiveButton(R.string.save) { _, _ ->
 				DownloadService.start(this, manga)
 			}

app/src/main/java/org/koitharu/kotatsu/details/ui/DetailsFragment.kt

@@ -2,7 +2,6 @@ package org.koitharu.kotatsu.details.ui
 
 import android.app.ActivityOptions
 import android.os.Bundle
-import android.text.Spanned
 import android.text.method.LinkMovementMethod
 import android.view.*
 import androidx.appcompat.widget.PopupMenu
@@ -10,18 +9,15 @@ import androidx.core.content.ContextCompat
 import androidx.core.graphics.Insets
 import androidx.core.net.toFile
 import androidx.core.net.toUri
-import androidx.core.text.parseAsHtml
 import androidx.core.view.MenuProvider
 import androidx.core.view.isGone
 import androidx.core.view.isVisible
 import androidx.core.view.updatePadding
 import coil.ImageLoader
 import coil.request.ImageRequest
-import coil.size.Scale
 import coil.util.CoilUtils
 import com.google.android.material.chip.Chip
 import kotlinx.coroutines.launch
-import org.koin.android.ext.android.get
 import org.koin.android.ext.android.inject
 import org.koin.androidx.viewmodel.ext.android.sharedViewModel
 import org.koitharu.kotatsu.R
@@ -33,6 +29,7 @@ import org.koitharu.kotatsu.bookmarks.domain.Bookmark
 import org.koitharu.kotatsu.bookmarks.ui.BookmarksAdapter
 import org.koitharu.kotatsu.core.model.MangaHistory
 import org.koitharu.kotatsu.databinding.FragmentDetailsBinding
+import org.koitharu.kotatsu.details.ui.model.ChapterListItem
 import org.koitharu.kotatsu.details.ui.scrobbling.ScrobblingInfoBottomSheet
 import org.koitharu.kotatsu.favourites.ui.categories.select.FavouriteCategoriesBottomSheet
 import org.koitharu.kotatsu.history.domain.PROGRESS_NONE
@@ -49,6 +46,7 @@ import org.koitharu.kotatsu.search.ui.SearchActivity
 import org.koitharu.kotatsu.utils.FileSize
 import org.koitharu.kotatsu.utils.ShareHelper
 import org.koitharu.kotatsu.utils.ext.*
+import org.koitharu.kotatsu.utils.image.CoverSizeResolver
 
 class DetailsFragment :
 	BaseFragment<FragmentDetailsBinding>(),
@@ -82,6 +80,7 @@ class DetailsFragment :
 		viewModel.bookmarks.observe(viewLifecycleOwner, ::onBookmarksChanged)
 		viewModel.scrobblingInfo.observe(viewLifecycleOwner, ::onScrobblingInfoChanged)
 		viewModel.description.observe(viewLifecycleOwner, ::onDescriptionChanged)
+		viewModel.chapters.observe(viewLifecycleOwner, ::onChaptersChanged)
 		addMenuProvider(DetailsMenuProvider())
 	}
 
@@ -126,18 +125,6 @@ class DetailsFragment :
 				else -> textViewState.isVisible = false
 			}
 
-			// Info containers
-			val chapters = manga.chapters
-			if (chapters.isNullOrEmpty()) {
-				infoLayout.textViewChapters.isVisible = false
-			} else {
-				infoLayout.textViewChapters.isVisible = true
-				infoLayout.textViewChapters.text = resources.getQuantityString(
-					R.plurals.chapters,
-					chapters.size,
-					chapters.size,
-				)
-			}
 			if (manga.hasRating) {
 				infoLayout.textViewRating.text = String.format("%.1f", manga.rating * 5)
 				infoLayout.ratingContainer.isVisible = true
@@ -164,14 +151,27 @@ class DetailsFragment :
 
 			infoLayout.textViewNsfw.isVisible = manga.isNsfw
 
-			// Buttons
-			buttonRead.isEnabled = !manga.chapters.isNullOrEmpty()
-
 			// Chips
 			bindTags(manga)
 		}
 	}
 
+	private fun onChaptersChanged(chapters: List<ChapterListItem>?) {
+		val infoLayout = binding.infoLayout
+		if (chapters.isNullOrEmpty()) {
+			infoLayout.textViewChapters.isVisible = false
+		} else {
+			infoLayout.textViewChapters.isVisible = true
+			infoLayout.textViewChapters.text = resources.getQuantityString(
+				R.plurals.chapters,
+				chapters.size,
+				chapters.size,
+			)
+		}
+		// Buttons
+		binding.buttonRead.isEnabled = !chapters.isNullOrEmpty()
+	}
+
 	private fun onDescriptionChanged(description: CharSequence?) {
 		if (description.isNullOrBlank()) {
 			binding.textViewDescription.setText(R.string.no_description)
@@ -231,14 +231,13 @@ class DetailsFragment :
 				CoilUtils.dispose(imageViewCover)
 				return
 			}
-			imageViewCover.newImageRequest(scrobbling.coverUrl)
-				.crossfade(true)
-				.placeholder(R.drawable.ic_placeholder)
-				.fallback(R.drawable.ic_placeholder)
-				.error(R.drawable.ic_placeholder)
-				.scale(Scale.FILL)
-				.lifecycle(viewLifecycleOwner)
-				.enqueueWith(coil)
+			imageViewCover.newImageRequest(scrobbling.coverUrl)?.run {
+				placeholder(R.drawable.ic_placeholder)
+				fallback(R.drawable.ic_placeholder)
+				error(R.drawable.ic_placeholder)
+				lifecycle(viewLifecycleOwner)
+				enqueueWith(coil)
+			}
 			textViewTitle.text = scrobbling.title
 			textViewTitle.setCompoundDrawablesRelativeWithIntrinsicBounds(0, 0, scrobbling.scrobbler.iconResId, 0)
 			ratingBar.rating = scrobbling.rating * ratingBar.numStars
@@ -267,7 +266,7 @@ class DetailsFragment :
 							context = context ?: return,
 							manga = manga,
 							branch = viewModel.selectedBranchValue,
-						)
+						),
 					)
 				}
 			}
@@ -277,14 +276,14 @@ class DetailsFragment :
 						context = v.context,
 						source = manga.source,
 						query = manga.author ?: return,
-					)
+					),
 				)
 			}
 			R.id.imageView_cover -> {
 				val options = ActivityOptions.makeScaleUpAnimation(v, 0, 0, v.width, v.height)
 				startActivity(
 					ImageActivity.newIntent(v.context, manga.largeCoverUrl.ifNullOrEmpty { manga.coverUrl }),
-					options.toBundle()
+					options.toBundle(),
 				)
 			}
 		}
@@ -310,8 +309,8 @@ class DetailsFragment :
 										c.chapter.branch == branch
 									}?.let { c ->
 										ReaderState(c.chapter.id, 0, 0)
-									}
-								)
+									},
+								),
 							)
 							true
 						}
@@ -344,7 +343,7 @@ class DetailsFragment :
 					icon = 0,
 					data = tag,
 				)
-			}
+			},
 		)
 	}
 
@@ -356,13 +355,22 @@ class DetailsFragment :
 		}
 		val request = ImageRequest.Builder(context ?: return)
 			.target(binding.imageViewCover)
+			.size(CoverSizeResolver(binding.imageViewCover))
 			.data(imageUrl)
 			.crossfade(true)
 			.referer(manga.publicUrl)
 			.lifecycle(viewLifecycleOwner)
-		lastResult?.drawable?.let {
-			request.fallback(it)
-		} ?: request.fallback(R.drawable.ic_placeholder)
+			.placeholderMemoryCacheKey(manga.coverUrl)
+		val previousDrawable = lastResult?.drawable
+		if (previousDrawable != null) {
+			request.fallback(previousDrawable)
+				.placeholder(previousDrawable)
+				.error(previousDrawable)
+		} else {
+			request.fallback(R.drawable.ic_placeholder)
+				.placeholder(R.drawable.ic_placeholder)
+				.error(R.drawable.ic_placeholder)
+		}
 		request.enqueueWith(coil)
 	}
 

app/src/main/java/org/koitharu/kotatsu/details/ui/DetailsViewModel.kt

@@ -1,11 +1,16 @@
 package org.koitharu.kotatsu.details.ui
 
 import android.text.Html
+import android.text.SpannableString
+import android.text.Spanned
+import android.text.style.ForegroundColorSpan
+import androidx.core.text.getSpans
 import androidx.core.text.parseAsHtml
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.asFlow
 import androidx.lifecycle.asLiveData
 import androidx.lifecycle.viewModelScope
+import java.io.IOException
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.flow.*
@@ -33,7 +38,7 @@ import org.koitharu.kotatsu.tracker.domain.TrackingRepository
 import org.koitharu.kotatsu.utils.SingleLiveEvent
 import org.koitharu.kotatsu.utils.ext.asLiveDataDistinct
 import org.koitharu.kotatsu.utils.ext.printStackTraceDebug
-import java.io.IOException
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable
 
 class DetailsViewModel(
 	intent: MangaIntent,
@@ -91,8 +96,8 @@ class DetailsViewModel(
 			if (description.isNullOrEmpty()) {
 				emit(null)
 			} else {
-				emit(description.parseAsHtml())
-				emit(description.parseAsHtml(imageGetter = imageGetter))
+				emit(description.parseAsHtml().filterSpans())
+				emit(description.parseAsHtml(imageGetter = imageGetter).filterSpans())
 			}
 		}.asLiveDataDistinct(viewModelScope.coroutineContext + Dispatchers.Default, null)
 
@@ -110,7 +115,7 @@ class DetailsViewModel(
 
 	val selectedBranchIndex = combine(
 		branches.asFlow(),
-		delegate.selectedBranch
+		delegate.selectedBranch,
 	) { branches, selected ->
 		branches.indexOf(selected)
 	}.asLiveDataDistinct(viewModelScope.coroutineContext + Dispatchers.Default)
@@ -161,7 +166,7 @@ class DetailsViewModel(
 			checkNotNull(manga) { "Cannot find saved manga for ${m.title}" }
 			val original = localMangaRepository.getRemoteManga(manga)
 			localMangaRepository.delete(manga) || throw IOException("Unable to delete file")
-			runCatching {
+			runCatchingCancellable {
 				historyRepository.deleteOrSwap(manga, original)
 			}
 			onMangaRemoved.postCall(manga)
@@ -200,7 +205,7 @@ class DetailsViewModel(
 			reload()
 		} else {
 			viewModelScope.launch(Dispatchers.Default) {
-				runCatching {
+				runCatchingCancellable {
 					localMangaRepository.getDetails(downloadedManga)
 				}.onSuccess {
 					delegate.relatedManga.value = it
@@ -225,7 +230,7 @@ class DetailsViewModel(
 	fun unregisterScrobbling() {
 		launchJob(Dispatchers.Default) {
 			scrobbler.unregisterScrobbling(
-				mangaId = delegate.mangaId
+				mangaId = delegate.mangaId,
 			)
 		}
 	}
@@ -242,4 +247,13 @@ class DetailsViewModel(
 			it.chapter.name.contains(query, ignoreCase = true)
 		}
 	}
+
+	private fun Spanned.filterSpans(): CharSequence {
+		val spannable = SpannableString.valueOf(this)
+		val spans = spannable.getSpans<ForegroundColorSpan>()
+		for (span in spans) {
+			spannable.removeSpan(span)
+		}
+		return spannable.trim()
+	}
 }

app/src/main/java/org/koitharu/kotatsu/details/ui/MangaDetailsDelegate.kt

@@ -1,28 +1,23 @@
 package org.koitharu.kotatsu.details.ui
 
-import androidx.core.os.LocaleListCompat
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
-import org.acra.ACRA
 import org.koitharu.kotatsu.base.domain.MangaDataRepository
 import org.koitharu.kotatsu.base.domain.MangaIntent
-import org.koitharu.kotatsu.core.exceptions.MangaNotFoundException
 import org.koitharu.kotatsu.core.model.MangaHistory
+import org.koitharu.kotatsu.core.model.getPreferredBranch
 import org.koitharu.kotatsu.core.parser.MangaRepository
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.details.ui.model.ChapterListItem
 import org.koitharu.kotatsu.details.ui.model.toListItem
 import org.koitharu.kotatsu.history.domain.HistoryRepository
 import org.koitharu.kotatsu.local.domain.LocalMangaRepository
-import org.koitharu.kotatsu.parsers.exception.ParseException
+import org.koitharu.kotatsu.parsers.exception.NotFoundException
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaChapter
 import org.koitharu.kotatsu.parsers.model.MangaSource
-import org.koitharu.kotatsu.parsers.util.mapToSet
-import org.koitharu.kotatsu.parsers.util.toTitleCase
-import org.koitharu.kotatsu.utils.ext.iterator
 import org.koitharu.kotatsu.utils.ext.printStackTraceDebug
-import org.koitharu.kotatsu.utils.ext.setCurrentManga
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable
 
 class MangaDetailsDelegate(
 	private val intent: MangaIntent,
@@ -43,23 +38,16 @@ class MangaDetailsDelegate(
 	val mangaId = intent.manga?.id ?: intent.mangaId
 
 	suspend fun doLoad() {
-		var manga = mangaDataRepository.resolveIntent(intent)
-			?: throw MangaNotFoundException("Cannot find manga")
-		ACRA.setCurrentManga(manga)
+		var manga = mangaDataRepository.resolveIntent(intent) ?: throw NotFoundException("Cannot find manga", "")
 		mangaData.value = manga
 		manga = MangaRepository(manga.source).getDetails(manga)
 		// find default branch
 		val hist = historyRepository.getOne(manga)
-		selectedBranch.value = if (hist != null) {
-			val currentChapter = manga.chapters?.find { it.id == hist.chapterId }
-			if (currentChapter != null) currentChapter.branch else predictBranch(manga.chapters)
-		} else {
-			predictBranch(manga.chapters)
-		}
+		selectedBranch.value = manga.getPreferredBranch(hist)
 		mangaData.value = manga
-		relatedManga.value = runCatching {
+		relatedManga.value = runCatchingCancellable {
 			if (manga.source == MangaSource.LOCAL) {
-				val m = localMangaRepository.getRemoteManga(manga) ?: return@runCatching null
+				val m = localMangaRepository.getRemoteManga(manga) ?: return@runCatchingCancellable null
 				MangaRepository(m.source).getDetails(m)
 			} else {
 				localMangaRepository.findSavedManga(manga)
@@ -96,7 +84,7 @@ class MangaDetailsDelegate(
 		val dateFormat = settings.getDateFormat()
 		val currentIndex = chapters.indexOfFirst { it.id == currentId }
 		val firstNewIndex = chapters.size - newCount
-		val downloadedIds = downloadedChapters?.mapToSet { it.id }
+		val downloadedIds = downloadedChapters?.mapTo(HashSet(downloadedChapters.size)) { it.id }
 		for (i in chapters.indices) {
 			val chapter = chapters[i]
 			if (chapter.branch != branch) {
@@ -111,6 +99,9 @@ class MangaDetailsDelegate(
 				dateFormat = dateFormat,
 			)
 		}
+		if (result.size < chapters.size / 2) {
+			result.trimToSize()
+		}
 		return result
 	}
 
@@ -166,24 +157,9 @@ class MangaDetailsDelegate(
 			}
 			result.sortBy { it.chapter.number }
 		}
+		if (result.size < sourceChapters.size / 2) {
+			result.trimToSize()
+		}
 		return result
 	}
-
-	private fun predictBranch(chapters: List<MangaChapter>?): String? {
-		if (chapters.isNullOrEmpty()) {
-			return null
-		}
-		val groups = chapters.groupBy { it.branch }
-		for (locale in LocaleListCompat.getAdjustedDefault()) {
-			var language = locale.getDisplayLanguage(locale).toTitleCase(locale)
-			if (groups.containsKey(language)) {
-				return language
-			}
-			language = locale.getDisplayName(locale).toTitleCase(locale)
-			if (groups.containsKey(language)) {
-				return language
-			}
-		}
-		return groups.maxByOrNull { it.value.size }?.key
-	}
 }

app/src/main/java/org/koitharu/kotatsu/details/ui/model/ChapterListItem.kt

@@ -1,13 +1,24 @@
 package org.koitharu.kotatsu.details.ui.model
 
+import java.text.DateFormat
 import org.koitharu.kotatsu.parsers.model.MangaChapter
 
 class ChapterListItem(
 	val chapter: MangaChapter,
 	val flags: Int,
-	val uploadDate: String?,
+	private val uploadDateMs: Long,
+	private val dateFormat: DateFormat,
 ) {
 
+	var uploadDate: String? = null
+		private set
+		get() {
+			if (field != null) return field
+			if (uploadDateMs == 0L) return null
+			field = dateFormat.format(uploadDateMs)
+			return field
+		}
+
 	val status: Int
 		get() = flags and MASK_STATUS
 
@@ -32,7 +43,8 @@ class ChapterListItem(
 
 		if (chapter != other.chapter) return false
 		if (flags != other.flags) return false
-		if (uploadDate != other.uploadDate) return false
+		if (uploadDateMs != other.uploadDateMs) return false
+		if (dateFormat != other.dateFormat) return false
 
 		return true
 	}
@@ -40,7 +52,8 @@ class ChapterListItem(
 	override fun hashCode(): Int {
 		var result = chapter.hashCode()
 		result = 31 * result + flags
-		result = 31 * result + (uploadDate?.hashCode() ?: 0)
+		result = 31 * result + uploadDateMs.hashCode()
+		result = 31 * result + dateFormat.hashCode()
 		return result
 	}
 
@@ -53,4 +66,4 @@ class ChapterListItem(
 		const val FLAG_DOWNLOADED = 32
 		const val MASK_STATUS = FLAG_UNREAD or FLAG_CURRENT
 	}
-}
+}

app/src/main/java/org/koitharu/kotatsu/details/ui/model/ListModelConversionExt.kt

@@ -1,12 +1,12 @@
 package org.koitharu.kotatsu.details.ui.model
 
+import java.text.DateFormat
 import org.koitharu.kotatsu.details.ui.model.ChapterListItem.Companion.FLAG_CURRENT
 import org.koitharu.kotatsu.details.ui.model.ChapterListItem.Companion.FLAG_DOWNLOADED
 import org.koitharu.kotatsu.details.ui.model.ChapterListItem.Companion.FLAG_MISSING
 import org.koitharu.kotatsu.details.ui.model.ChapterListItem.Companion.FLAG_NEW
 import org.koitharu.kotatsu.details.ui.model.ChapterListItem.Companion.FLAG_UNREAD
 import org.koitharu.kotatsu.parsers.model.MangaChapter
-import java.text.DateFormat
 
 fun MangaChapter.toListItem(
 	isCurrent: Boolean,
@@ -25,6 +25,7 @@ fun MangaChapter.toListItem(
 	return ChapterListItem(
 		chapter = this,
 		flags = flags,
-		uploadDate = if (uploadDate != 0L) dateFormat.format(uploadDate) else null
+		uploadDateMs = uploadDate,
+		dateFormat = dateFormat,
 	)
 }

app/src/main/java/org/koitharu/kotatsu/download/domain/DownloadManager.kt

@@ -1,21 +1,32 @@
 package org.koitharu.kotatsu.download.domain
 
 import android.content.Context
-import android.net.ConnectivityManager
 import android.webkit.MimeTypeMap
 import coil.ImageLoader
 import coil.request.ImageRequest
 import coil.size.Scale
-import kotlinx.coroutines.*
+import java.io.File
+import kotlinx.coroutines.CancellationException
+import kotlinx.coroutines.CoroutineExceptionHandler
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.NonCancellable
+import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.runInterruptible
 import kotlinx.coroutines.sync.Semaphore
+import kotlinx.coroutines.sync.withPermit
+import kotlinx.coroutines.withContext
 import okhttp3.OkHttpClient
 import okhttp3.Request
+import okhttp3.internal.closeQuietly
 import okio.IOException
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.network.CommonHeaders
 import org.koitharu.kotatsu.core.parser.MangaRepository
 import org.koitharu.kotatsu.core.prefs.AppSettings
+import org.koitharu.kotatsu.download.ui.service.PausingHandle
 import org.koitharu.kotatsu.local.data.PagesCache
 import org.koitharu.kotatsu.local.domain.CbzMangaOutput
 import org.koitharu.kotatsu.local.domain.LocalMangaRepository
@@ -25,11 +36,10 @@ import org.koitharu.kotatsu.parsers.util.await
 import org.koitharu.kotatsu.utils.ext.deleteAwait
 import org.koitharu.kotatsu.utils.ext.printStackTraceDebug
 import org.koitharu.kotatsu.utils.ext.referer
-import org.koitharu.kotatsu.utils.ext.waitForNetwork
-import org.koitharu.kotatsu.utils.progress.ProgressJob
-import java.io.File
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable
+import org.koitharu.kotatsu.utils.progress.PausingProgressJob
 
-private const val MAX_DOWNLOAD_ATTEMPTS = 3
+private const val MAX_FAILSAFE_ATTEMPTS = 2
 private const val DOWNLOAD_ERROR_DELAY = 500L
 private const val SLOWDOWN_DELAY = 200L
 
@@ -43,14 +53,11 @@ class DownloadManager(
 	private val settings: AppSettings,
 ) {
 
-	private val connectivityManager = context.getSystemService(
-		Context.CONNECTIVITY_SERVICE
-	) as ConnectivityManager
 	private val coverWidth = context.resources.getDimensionPixelSize(
-		androidx.core.R.dimen.compat_notification_large_icon_max_width
+		androidx.core.R.dimen.compat_notification_large_icon_max_width,
 	)
 	private val coverHeight = context.resources.getDimensionPixelSize(
-		androidx.core.R.dimen.compat_notification_large_icon_max_height
+		androidx.core.R.dimen.compat_notification_large_icon_max_height,
 	)
 	private val semaphore = Semaphore(settings.downloadsParallelism)
 
@@ -58,114 +65,142 @@ class DownloadManager(
 		manga: Manga,
 		chaptersIds: LongArray?,
 		startId: Int,
-	): ProgressJob<DownloadState> {
+	): PausingProgressJob<DownloadState> {
 		val stateFlow = MutableStateFlow<DownloadState>(
-			DownloadState.Queued(startId = startId, manga = manga, cover = null)
+			DownloadState.Queued(startId = startId, manga = manga, cover = null),
 		)
-		val job = downloadMangaImpl(manga, chaptersIds?.takeUnless { it.isEmpty() }, stateFlow, startId)
-		return ProgressJob(job, stateFlow)
+		val pausingHandle = PausingHandle()
+		val job = coroutineScope.launch(Dispatchers.Default + errorStateHandler(stateFlow)) {
+			try {
+				downloadMangaImpl(manga, chaptersIds?.takeUnless { it.isEmpty() }, stateFlow, pausingHandle, startId)
+			} catch (e: CancellationException) { // handle cancellation if not handled already
+				val state = stateFlow.value
+				if (state !is DownloadState.Cancelled) {
+					stateFlow.value = DownloadState.Cancelled(startId, state.manga, state.cover)
+				}
+				throw e
+			}
+		}
+		return PausingProgressJob(job, stateFlow, pausingHandle)
 	}
 
-	private fun downloadMangaImpl(
+	private suspend fun downloadMangaImpl(
 		manga: Manga,
 		chaptersIds: LongArray?,
 		outState: MutableStateFlow<DownloadState>,
+		pausingHandle: PausingHandle,
 		startId: Int,
-	): Job = coroutineScope.launch(Dispatchers.Default + errorStateHandler(outState)) {
-		@Suppress("NAME_SHADOWING") var manga = manga
+	) {
+		@Suppress("NAME_SHADOWING")
+		var manga = manga
 		val chaptersIdsSet = chaptersIds?.toMutableSet()
 		val cover = loadCover(manga)
 		outState.value = DownloadState.Queued(startId, manga, cover)
-		localMangaRepository.lockManga(manga.id)
-		semaphore.acquire()
-		coroutineContext[WakeLockNode]?.acquire()
-		outState.value = DownloadState.Preparing(startId, manga, null)
-		val destination = localMangaRepository.getOutputDir()
-		checkNotNull(destination) { context.getString(R.string.cannot_find_available_storage) }
-		val tempFileName = "${manga.id}_$startId.tmp"
-		var output: CbzMangaOutput? = null
-		try {
-			if (manga.source == MangaSource.LOCAL) {
-				manga = localMangaRepository.getRemoteManga(manga) ?: error("Cannot obtain remote manga instance")
-			}
-			val repo = MangaRepository(manga.source)
-			outState.value = DownloadState.Preparing(startId, manga, cover)
-			val data = if (manga.chapters.isNullOrEmpty()) repo.getDetails(manga) else manga
-			output = CbzMangaOutput.get(destination, data)
-			val coverUrl = data.largeCoverUrl ?: data.coverUrl
-			downloadFile(coverUrl, data.publicUrl, destination, tempFileName).let { file ->
-				output.addCover(file, MimeTypeMap.getFileExtensionFromUrl(coverUrl))
-			}
-			val chapters = checkNotNull(
-				if (chaptersIdsSet == null) {
-					data.chapters
-				} else {
-					data.chapters?.filter { x -> chaptersIdsSet.remove(x.id) }
-				}
-			) { "Chapters list must not be null" }
-			check(chapters.isNotEmpty()) { "Chapters list must not be empty" }
-			check(chaptersIdsSet.isNullOrEmpty()) {
-				"${chaptersIdsSet?.size} of ${chaptersIds?.size} requested chapters not found in manga"
-			}
-			for ((chapterIndex, chapter) in chapters.withIndex()) {
-				val pages = repo.getPages(chapter)
-				for ((pageIndex, page) in pages.withIndex()) {
-					var retryCounter = 0
-					failsafe@ while (true) {
-						try {
-							val url = repo.getPageUrl(page)
-							val file = cache[url] ?: downloadFile(url, page.referer, destination, tempFileName)
-							output.addPage(
-								chapter = chapter,
-								file = file,
-								pageNumber = pageIndex,
-								ext = MimeTypeMap.getFileExtensionFromUrl(url),
+		withMangaLock(manga) {
+			semaphore.withPermit {
+				outState.value = DownloadState.Preparing(startId, manga, null)
+				val destination = localMangaRepository.getOutputDir()
+				checkNotNull(destination) { context.getString(R.string.cannot_find_available_storage) }
+				val tempFileName = "${manga.id}_$startId.tmp"
+				var output: CbzMangaOutput? = null
+				try {
+					if (manga.source == MangaSource.LOCAL) {
+						manga = localMangaRepository.getRemoteManga(manga)
+							?: error("Cannot obtain remote manga instance")
+					}
+					val repo = MangaRepository(manga.source)
+					outState.value = DownloadState.Preparing(startId, manga, cover)
+					val data = if (manga.chapters.isNullOrEmpty()) repo.getDetails(manga) else manga
+					output = CbzMangaOutput.get(destination, data)
+					val coverUrl = data.largeCoverUrl ?: data.coverUrl
+					downloadFile(coverUrl, data.publicUrl, destination, tempFileName).let { file ->
+						output.addCover(file, MimeTypeMap.getFileExtensionFromUrl(coverUrl))
+					}
+					val chapters = checkNotNull(
+						if (chaptersIdsSet == null) {
+							data.chapters
+						} else {
+							data.chapters?.filter { x -> chaptersIdsSet.remove(x.id) }
+						},
+					) { "Chapters list must not be null" }
+					check(chapters.isNotEmpty()) { "Chapters list must not be empty" }
+					check(chaptersIdsSet.isNullOrEmpty()) {
+						"${chaptersIdsSet?.size} of ${chaptersIds?.size} requested chapters not found in manga"
+					}
+					for ((chapterIndex, chapter) in chapters.withIndex()) {
+						val pages = runFailsafe(outState, pausingHandle) {
+							repo.getPages(chapter)
+						}
+						for ((pageIndex, page) in pages.withIndex()) {
+							runFailsafe(outState, pausingHandle) {
+								val url = repo.getPageUrl(page)
+								val file = cache[url] ?: downloadFile(url, page.referer, destination, tempFileName)
+								output.addPage(
+									chapter = chapter,
+									file = file,
+									pageNumber = pageIndex,
+									ext = MimeTypeMap.getFileExtensionFromUrl(url),
+								)
+							}
+							outState.value = DownloadState.Progress(
+								startId = startId,
+								manga = data,
+								cover = cover,
+								totalChapters = chapters.size,
+								currentChapter = chapterIndex,
+								totalPages = pages.size,
+								currentPage = pageIndex,
 							)
-							break@failsafe
-						} catch (e: IOException) {
-							if (retryCounter < MAX_DOWNLOAD_ATTEMPTS) {
-								outState.value = DownloadState.WaitingForNetwork(startId, data, cover)
-								delay(DOWNLOAD_ERROR_DELAY)
-								connectivityManager.waitForNetwork()
-								retryCounter++
-							} else {
-								throw e
+
+							if (settings.isDownloadsSlowdownEnabled) {
+								delay(SLOWDOWN_DELAY)
 							}
 						}
 					}
-
-					outState.value = DownloadState.Progress(
-						startId, data, cover,
-						totalChapters = chapters.size,
-						currentChapter = chapterIndex,
-						totalPages = pages.size,
-						currentPage = pageIndex,
-					)
-
-					if (settings.isDownloadsSlowdownEnabled) {
-						delay(SLOWDOWN_DELAY)
+					outState.value = DownloadState.PostProcessing(startId, data, cover)
+					output.mergeWithExisting()
+					output.finish()
+					val localManga = localMangaRepository.getFromFile(output.file)
+					outState.value = DownloadState.Done(startId, data, cover, localManga)
+				} catch (e: CancellationException) {
+					outState.value = DownloadState.Cancelled(startId, manga, cover)
+					throw e
+				} catch (e: Throwable) {
+					e.printStackTraceDebug()
+					outState.value = DownloadState.Error(startId, manga, cover, e, false)
+				} finally {
+					withContext(NonCancellable) {
+						output?.closeQuietly()
+						output?.cleanup()
+						File(destination, tempFileName).deleteAwait()
 					}
 				}
 			}
-			outState.value = DownloadState.PostProcessing(startId, data, cover)
-			output.mergeWithExisting()
-			output.finalize()
-			val localManga = localMangaRepository.getFromFile(output.file)
-			outState.value = DownloadState.Done(startId, data, cover, localManga)
-		} catch (e: CancellationException) {
-			outState.value = DownloadState.Cancelled(startId, manga, cover)
-			throw e
-		} catch (e: Throwable) {
-			e.printStackTraceDebug()
-			outState.value = DownloadState.Error(startId, manga, cover, e)
-		} finally {
-			withContext(NonCancellable) {
-				output?.cleanup()
-				File(destination, tempFileName).deleteAwait()
+		}
+	}
+
+	private suspend fun <R> runFailsafe(
+		outState: MutableStateFlow<DownloadState>,
+		pausingHandle: PausingHandle,
+		block: suspend () -> R,
+	): R {
+		var countDown = MAX_FAILSAFE_ATTEMPTS
+		failsafe@ while (true) {
+			try {
+				return block()
+			} catch (e: IOException) {
+				if (countDown <= 0) {
+					val state = outState.value
+					outState.value = DownloadState.Error(state.startId, state.manga, state.cover, e, true)
+					countDown = MAX_FAILSAFE_ATTEMPTS
+					pausingHandle.pause()
+					pausingHandle.awaitResumed()
+					outState.value = state
+				} else {
+					countDown--
+					delay(DOWNLOAD_ERROR_DELAY)
+				}
 			}
-			coroutineContext[WakeLockNode]?.release()
-			semaphore.release()
-			localMangaRepository.unlockManga(manga.id)
 		}
 	}
 
@@ -189,26 +224,35 @@ class DownloadManager(
 
 	private fun errorStateHandler(outState: MutableStateFlow<DownloadState>) =
 		CoroutineExceptionHandler { _, throwable ->
+			throwable.printStackTraceDebug()
 			val prevValue = outState.value
 			outState.value = DownloadState.Error(
 				startId = prevValue.startId,
 				manga = prevValue.manga,
 				cover = prevValue.cover,
 				error = throwable,
+				canRetry = false,
 			)
 		}
 
-	private suspend fun loadCover(manga: Manga) = runCatching {
+	private suspend fun loadCover(manga: Manga) = runCatchingCancellable {
 		imageLoader.execute(
 			ImageRequest.Builder(context)
 				.data(manga.coverUrl)
 				.referer(manga.publicUrl)
 				.size(coverWidth, coverHeight)
 				.scale(Scale.FILL)
-				.build()
+				.build(),
 		).drawable
 	}.getOrNull()
 
+	private suspend inline fun <T> withMangaLock(manga: Manga, block: () -> T) = try {
+		localMangaRepository.lockManga(manga.id)
+		block()
+	} finally {
+		localMangaRepository.unlockManga(manga.id)
+	}
+
 	class Factory(
 		private val context: Context,
 		private val imageLoader: ImageLoader,

app/src/main/java/org/koitharu/kotatsu/download/domain/DownloadState.kt

@@ -108,33 +108,6 @@ sealed interface DownloadState {
 		}
 	}
 
-	class WaitingForNetwork(
-		override val startId: Int,
-		override val manga: Manga,
-		override val cover: Drawable?,
-	) : DownloadState {
-
-		override fun equals(other: Any?): Boolean {
-			if (this === other) return true
-			if (javaClass != other?.javaClass) return false
-
-			other as WaitingForNetwork
-
-			if (startId != other.startId) return false
-			if (manga != other.manga) return false
-			if (cover != other.cover) return false
-
-			return true
-		}
-
-		override fun hashCode(): Int {
-			var result = startId
-			result = 31 * result + manga.hashCode()
-			result = 31 * result + (cover?.hashCode() ?: 0)
-			return result
-		}
-	}
-
 	class Done(
 		override val startId: Int,
 		override val manga: Manga,
@@ -170,6 +143,7 @@ sealed interface DownloadState {
 		override val manga: Manga,
 		override val cover: Drawable?,
 		val error: Throwable,
+		val canRetry: Boolean,
 	) : DownloadState {
 
 		override fun equals(other: Any?): Boolean {
@@ -182,6 +156,7 @@ sealed interface DownloadState {
 			if (manga != other.manga) return false
 			if (cover != other.cover) return false
 			if (error != other.error) return false
+			if (canRetry != other.canRetry) return false
 
 			return true
 		}
@@ -191,6 +166,7 @@ sealed interface DownloadState {
 			result = 31 * result + manga.hashCode()
 			result = 31 * result + (cover?.hashCode() ?: 0)
 			result = 31 * result + error.hashCode()
+			result = 31 * result + canRetry.hashCode()
 			return result
 		}
 	}

app/src/main/java/org/koitharu/kotatsu/download/domain/WakeLockNode.kt

@@ -1,25 +0,0 @@
-package org.koitharu.kotatsu.download.domain
-
-import android.os.PowerManager
-import kotlin.coroutines.AbstractCoroutineContextElement
-import kotlin.coroutines.CoroutineContext
-
-class WakeLockNode(
-	private val wakeLock: PowerManager.WakeLock,
-	private val timeout: Long,
-) : AbstractCoroutineContextElement(Key) {
-
-	init {
-		wakeLock.setReferenceCounted(true)
-	}
-
-	fun acquire() {
-		wakeLock.acquire(timeout)
-	}
-
-	fun release() {
-		wakeLock.release()
-	}
-
-	companion object Key : CoroutineContext.Key<WakeLockNode>
-}

app/src/main/java/org/koitharu/kotatsu/download/ui/DownloadItemAD.kt

@@ -1,5 +1,6 @@
 package org.koitharu.kotatsu.download.ui
 
+import android.view.View
 import androidx.core.view.isVisible
 import coil.ImageLoader
 import com.hannesdorfmann.adapterdelegates4.dsl.adapterDelegateViewBinding
@@ -9,31 +10,44 @@ import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.onEach
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.databinding.ItemDownloadBinding
+import org.koitharu.kotatsu.details.ui.DetailsActivity
 import org.koitharu.kotatsu.download.domain.DownloadState
 import org.koitharu.kotatsu.parsers.util.format
 import org.koitharu.kotatsu.utils.ext.*
-import org.koitharu.kotatsu.utils.progress.ProgressJob
 
 fun downloadItemAD(
 	scope: CoroutineScope,
 	coil: ImageLoader,
-) = adapterDelegateViewBinding<ProgressJob<DownloadState>, ProgressJob<DownloadState>, ItemDownloadBinding>(
-	{ inflater, parent -> ItemDownloadBinding.inflate(inflater, parent, false) }
+) = adapterDelegateViewBinding<DownloadItem, DownloadItem, ItemDownloadBinding>(
+	{ inflater, parent -> ItemDownloadBinding.inflate(inflater, parent, false) },
 ) {
-
 	var job: Job? = null
 	val percentPattern = context.resources.getString(R.string.percent_string_pattern)
 
+	val clickListener = View.OnClickListener { v ->
+		when (v.id) {
+			R.id.button_cancel -> item.cancel()
+			R.id.button_resume -> item.resume()
+			else -> context.startActivity(
+				DetailsActivity.newIntent(context, item.progressValue.manga),
+			)
+		}
+	}
+	binding.buttonCancel.setOnClickListener(clickListener)
+	binding.buttonResume.setOnClickListener(clickListener)
+	itemView.setOnClickListener(clickListener)
+
 	bind {
 		job?.cancel()
 		job = item.progressAsFlow().onFirst { state ->
-			binding.imageViewCover.newImageRequest(state.manga.coverUrl)
-				.referer(state.manga.publicUrl)
-				.placeholder(state.cover)
-				.fallback(R.drawable.ic_placeholder)
-				.error(R.drawable.ic_placeholder)
-				.allowRgb565(true)
-				.enqueueWith(coil)
+			binding.imageViewCover.newImageRequest(state.manga.coverUrl)?.run {
+				referer(state.manga.publicUrl)
+				placeholder(state.cover)
+				fallback(R.drawable.ic_placeholder)
+				error(R.drawable.ic_placeholder)
+				allowRgb565(true)
+				enqueueWith(coil)
+			}
 		}.onEach { state ->
 			binding.textViewTitle.text = state.manga.title
 			when (state) {
@@ -43,6 +57,8 @@ fun downloadItemAD(
 					binding.progressBar.isVisible = true
 					binding.textViewPercent.isVisible = false
 					binding.textViewDetails.isVisible = false
+					binding.buttonCancel.isVisible = false
+					binding.buttonResume.isVisible = false
 				}
 				is DownloadState.Done -> {
 					binding.textViewStatus.setText(R.string.download_complete)
@@ -50,6 +66,8 @@ fun downloadItemAD(
 					binding.progressBar.isVisible = false
 					binding.textViewPercent.isVisible = false
 					binding.textViewDetails.isVisible = false
+					binding.buttonCancel.isVisible = false
+					binding.buttonResume.isVisible = false
 				}
 				is DownloadState.Error -> {
 					binding.textViewStatus.setText(R.string.error_occurred)
@@ -58,6 +76,8 @@ fun downloadItemAD(
 					binding.textViewPercent.isVisible = false
 					binding.textViewDetails.text = state.error.getDisplayMessage(context.resources)
 					binding.textViewDetails.isVisible = true
+					binding.buttonCancel.isVisible = state.canRetry
+					binding.buttonResume.isVisible = state.canRetry
 				}
 				is DownloadState.PostProcessing -> {
 					binding.textViewStatus.setText(R.string.processing_)
@@ -65,6 +85,8 @@ fun downloadItemAD(
 					binding.progressBar.isVisible = true
 					binding.textViewPercent.isVisible = false
 					binding.textViewDetails.isVisible = false
+					binding.buttonCancel.isVisible = false
+					binding.buttonResume.isVisible = false
 				}
 				is DownloadState.Preparing -> {
 					binding.textViewStatus.setText(R.string.preparing_)
@@ -72,6 +94,8 @@ fun downloadItemAD(
 					binding.progressBar.isVisible = true
 					binding.textViewPercent.isVisible = false
 					binding.textViewDetails.isVisible = false
+					binding.buttonCancel.isVisible = true
+					binding.buttonResume.isVisible = false
 				}
 				is DownloadState.Progress -> {
 					binding.textViewStatus.setText(R.string.manga_downloading_)
@@ -82,6 +106,8 @@ fun downloadItemAD(
 					binding.textViewPercent.text = percentPattern.format((state.percent * 100f).format(1))
 					binding.textViewPercent.isVisible = true
 					binding.textViewDetails.isVisible = false
+					binding.buttonCancel.isVisible = true
+					binding.buttonResume.isVisible = false
 				}
 				is DownloadState.Queued -> {
 					binding.textViewStatus.setText(R.string.queued)
@@ -89,13 +115,8 @@ fun downloadItemAD(
 					binding.progressBar.isVisible = false
 					binding.textViewPercent.isVisible = false
 					binding.textViewDetails.isVisible = false
-				}
-				is DownloadState.WaitingForNetwork -> {
-					binding.textViewStatus.setText(R.string.waiting_for_network)
-					binding.progressBar.isIndeterminate = false
-					binding.progressBar.isVisible = false
-					binding.textViewPercent.isVisible = false
-					binding.textViewDetails.isVisible = false
+					binding.buttonCancel.isVisible = true
+					binding.buttonResume.isVisible = false
 				}
 			}
 		}.launchIn(scope)

app/src/main/java/org/koitharu/kotatsu/download/ui/DownloadsActivity.kt

@@ -1,21 +1,23 @@
 package org.koitharu.kotatsu.download.ui
 
+import android.content.ComponentName
 import android.content.Context
 import android.content.Intent
+import android.content.ServiceConnection
 import android.os.Bundle
+import android.os.IBinder
 import androidx.core.graphics.Insets
 import androidx.core.view.isVisible
 import androidx.core.view.updatePadding
+import androidx.lifecycle.DefaultLifecycleObserver
+import androidx.lifecycle.LifecycleOwner
 import androidx.lifecycle.lifecycleScope
-import kotlinx.coroutines.flow.flatMapLatest
-import kotlinx.coroutines.flow.flowOf
-import kotlinx.coroutines.flow.launchIn
-import kotlinx.coroutines.flow.onEach
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.launch
 import org.koin.android.ext.android.get
 import org.koitharu.kotatsu.base.ui.BaseActivity
 import org.koitharu.kotatsu.databinding.ActivityDownloadsBinding
 import org.koitharu.kotatsu.download.ui.service.DownloadService
-import org.koitharu.kotatsu.utils.bindServiceWithLifecycle
 
 class DownloadsActivity : BaseActivity<ActivityDownloadsBinding>() {
 
@@ -26,30 +28,63 @@ class DownloadsActivity : BaseActivity<ActivityDownloadsBinding>() {
 		val adapter = DownloadsAdapter(lifecycleScope, get())
 		binding.recyclerView.setHasFixedSize(true)
 		binding.recyclerView.adapter = adapter
-		bindServiceWithLifecycle(
-			owner = this,
-			service = Intent(this, DownloadService::class.java),
-			flags = 0,
-		).service.flatMapLatest { binder ->
-			(binder as? DownloadService.DownloadBinder)?.downloads ?: flowOf(null)
-		}.onEach {
-			adapter.items = it?.toList().orEmpty()
-			binding.textViewHolder.isVisible = it.isNullOrEmpty()
-		}.launchIn(lifecycleScope)
+		val connection = DownloadServiceConnection(adapter)
+		bindService(Intent(this, DownloadService::class.java), connection, 0)
+		lifecycle.addObserver(connection)
 	}
 
 	override fun onWindowInsetsChanged(insets: Insets) {
 		binding.recyclerView.updatePadding(
 			left = insets.left,
 			right = insets.right,
-			bottom = insets.bottom
+			bottom = insets.bottom,
 		)
 		binding.toolbar.updatePadding(
 			left = insets.left,
-			right = insets.right
+			right = insets.right,
 		)
 	}
 
+	private inner class DownloadServiceConnection(
+		private val adapter: DownloadsAdapter,
+	) : ServiceConnection, DefaultLifecycleObserver {
+
+		private var collectJob: Job? = null
+
+		override fun onServiceConnected(name: ComponentName?, service: IBinder?) {
+			collectJob?.cancel()
+			val binder = (service as? DownloadService.DownloadBinder)
+			collectJob = if (binder == null) {
+				null
+			} else {
+				lifecycleScope.launch {
+					binder.downloads.collect {
+						setItems(it)
+					}
+				}
+			}
+		}
+
+		override fun onServiceDisconnected(name: ComponentName?) {
+			collectJob?.cancel()
+			collectJob = null
+			setItems(null)
+		}
+
+		override fun onDestroy(owner: LifecycleOwner) {
+			super.onDestroy(owner)
+			collectJob?.cancel()
+			collectJob = null
+			owner.lifecycle.removeObserver(this)
+			unbindService(this)
+		}
+
+		private fun setItems(items: Collection<DownloadItem>?) {
+			adapter.items = items?.toList().orEmpty()
+			binding.textViewHolder.isVisible = items.isNullOrEmpty()
+		}
+	}
+
 	companion object {
 
 		fun newIntent(context: Context) = Intent(context, DownloadsActivity::class.java)

app/src/main/java/org/koitharu/kotatsu/download/ui/DownloadsAdapter.kt

@@ -5,12 +5,14 @@ import coil.ImageLoader
 import com.hannesdorfmann.adapterdelegates4.AsyncListDifferDelegationAdapter
 import kotlinx.coroutines.CoroutineScope
 import org.koitharu.kotatsu.download.domain.DownloadState
-import org.koitharu.kotatsu.utils.progress.ProgressJob
+import org.koitharu.kotatsu.utils.progress.PausingProgressJob
+
+typealias DownloadItem = PausingProgressJob<DownloadState>
 
 class DownloadsAdapter(
 	scope: CoroutineScope,
 	coil: ImageLoader,
-) : AsyncListDifferDelegationAdapter<ProgressJob<DownloadState>>(DiffCallback()) {
+) : AsyncListDifferDelegationAdapter<DownloadItem>(DiffCallback()) {
 
 	init {
 		delegatesManager.addDelegate(downloadItemAD(scope, coil))
@@ -21,18 +23,18 @@ class DownloadsAdapter(
 		return items[position].progressValue.startId.toLong()
 	}
 
-	private class DiffCallback : DiffUtil.ItemCallback<ProgressJob<DownloadState>>() {
+	private class DiffCallback : DiffUtil.ItemCallback<DownloadItem>() {
 
 		override fun areItemsTheSame(
-			oldItem: ProgressJob<DownloadState>,
-			newItem: ProgressJob<DownloadState>,
+			oldItem: DownloadItem,
+			newItem: DownloadItem,
 		): Boolean {
 			return oldItem.progressValue.startId == newItem.progressValue.startId
 		}
 
 		override fun areContentsTheSame(
-			oldItem: ProgressJob<DownloadState>,
-			newItem: ProgressJob<DownloadState>,
+			oldItem: DownloadItem,
+			newItem: DownloadItem,
 		): Boolean {
 			return oldItem.progressValue == newItem.progressValue
 		}

app/src/main/java/org/koitharu/kotatsu/download/ui/service/DownloadNotification.kt

@@ -7,33 +7,34 @@ import android.app.PendingIntent
 import android.content.Context
 import android.os.Build
 import android.text.format.DateUtils
+import android.util.SparseArray
 import androidx.core.app.NotificationCompat
 import androidx.core.app.NotificationManagerCompat
 import androidx.core.content.ContextCompat
 import androidx.core.graphics.drawable.toBitmap
+import androidx.core.text.HtmlCompat
+import androidx.core.text.htmlEncode
+import androidx.core.text.parseAsHtml
+import androidx.core.util.forEach
+import androidx.core.util.isNotEmpty
+import androidx.core.util.size
 import com.google.android.material.R as materialR
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.details.ui.DetailsActivity
 import org.koitharu.kotatsu.download.domain.DownloadState
 import org.koitharu.kotatsu.download.ui.DownloadsActivity
 import org.koitharu.kotatsu.parsers.model.Manga
+import org.koitharu.kotatsu.parsers.util.ellipsize
 import org.koitharu.kotatsu.parsers.util.format
 import org.koitharu.kotatsu.utils.PendingIntentCompat
 import org.koitharu.kotatsu.utils.ext.getDisplayMessage
 
-class DownloadNotification(private val context: Context, startId: Int) {
+class DownloadNotification(private val context: Context) {
+
+	private val manager = context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
+	private val states = SparseArray<DownloadState>()
+	private val groupBuilder = NotificationCompat.Builder(context, CHANNEL_ID)
 
-	private val builder = NotificationCompat.Builder(context, CHANNEL_ID)
-	private val cancelAction = NotificationCompat.Action(
-		materialR.drawable.material_ic_clear_black_24dp,
-		context.getString(android.R.string.cancel),
-		PendingIntent.getBroadcast(
-			context,
-			startId,
-			DownloadService.getCancelIntent(startId),
-			PendingIntent.FLAG_CANCEL_CURRENT or PendingIntentCompat.FLAG_IMMUTABLE
-		)
-	)
 	private val listIntent = PendingIntent.getActivity(
 		context,
 		REQUEST_LIST,
@@ -42,114 +43,271 @@ class DownloadNotification(private val context: Context, startId: Int) {
 	)
 
 	init {
-		builder.setOnlyAlertOnce(true)
-		builder.setDefaults(0)
-		builder.color = ContextCompat.getColor(context, R.color.blue_primary)
-		builder.foregroundServiceBehavior = NotificationCompat.FOREGROUND_SERVICE_IMMEDIATE
-		builder.setSilent(true)
+		groupBuilder.setOnlyAlertOnce(true)
+		groupBuilder.setDefaults(0)
+		groupBuilder.color = ContextCompat.getColor(context, R.color.blue_primary)
+		groupBuilder.foregroundServiceBehavior = NotificationCompat.FOREGROUND_SERVICE_IMMEDIATE
+		groupBuilder.setSilent(true)
+		groupBuilder.setGroup(GROUP_ID)
+		groupBuilder.setContentIntent(listIntent)
+		groupBuilder.setGroupAlertBehavior(NotificationCompat.GROUP_ALERT_CHILDREN)
+		groupBuilder.setGroupSummary(true)
+		groupBuilder.setContentTitle(context.getString(R.string.downloading_manga))
 	}
 
-	fun create(state: DownloadState, timeLeft: Long): Notification {
-		builder.setContentTitle(state.manga.title)
-		builder.setContentText(context.getString(R.string.manga_downloading_))
-		builder.setProgress(1, 0, true)
-		builder.setSmallIcon(android.R.drawable.stat_sys_download)
-		builder.setContentIntent(listIntent)
-		builder.setStyle(null)
-		builder.setLargeIcon(state.cover?.toBitmap())
-		builder.clearActions()
-		builder.setVisibility(
+	fun buildGroupNotification(): Notification {
+		val style = NotificationCompat.InboxStyle(groupBuilder)
+		var progress = 0f
+		var isAllDone = true
+		var isInProgress = false
+		groupBuilder.setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
+		states.forEach { _, state ->
 			if (state.manga.isNsfw) {
-				NotificationCompat.VISIBILITY_PRIVATE
-			} else {
-				NotificationCompat.VISIBILITY_PUBLIC
+				groupBuilder.setVisibility(NotificationCompat.VISIBILITY_PRIVATE)
 			}
-		)
-		when (state) {
-			is DownloadState.Cancelled -> {
-				builder.setProgress(1, 0, true)
-				builder.setContentText(context.getString(R.string.cancelling_))
-				builder.setContentIntent(null)
-				builder.setStyle(null)
-				builder.setOngoing(true)
-			}
-			is DownloadState.Done -> {
-				builder.setProgress(0, 0, false)
-				builder.setContentText(context.getString(R.string.download_complete))
-				builder.setContentIntent(createMangaIntent(context, state.localManga))
-				builder.setAutoCancel(true)
-				builder.setSmallIcon(android.R.drawable.stat_sys_download_done)
-				builder.setCategory(null)
-				builder.setStyle(null)
-				builder.setOngoing(false)
-			}
-			is DownloadState.Error -> {
-				val message = state.error.getDisplayMessage(context.resources)
-				builder.setProgress(0, 0, false)
-				builder.setSmallIcon(android.R.drawable.stat_notify_error)
-				builder.setSubText(context.getString(R.string.error))
-				builder.setContentText(message)
-				builder.setAutoCancel(true)
-				builder.setOngoing(false)
-				builder.setCategory(NotificationCompat.CATEGORY_ERROR)
-				builder.setStyle(NotificationCompat.BigTextStyle().bigText(message))
-			}
-			is DownloadState.PostProcessing -> {
-				builder.setProgress(1, 0, true)
-				builder.setContentText(context.getString(R.string.processing_))
-				builder.setStyle(null)
-				builder.setOngoing(true)
-			}
-			is DownloadState.Queued -> {
-				builder.setProgress(0, 0, false)
-				builder.setContentText(context.getString(R.string.queued))
-				builder.setStyle(null)
-				builder.setOngoing(true)
-				builder.addAction(cancelAction)
-			}
-			is DownloadState.Preparing -> {
-				builder.setProgress(1, 0, true)
-				builder.setContentText(context.getString(R.string.preparing_))
-				builder.setStyle(null)
-				builder.setOngoing(true)
-				builder.addAction(cancelAction)
-			}
-			is DownloadState.Progress -> {
-				builder.setProgress(state.max, state.progress, false)
-				if (timeLeft > 0L) {
-					val eta = DateUtils.getRelativeTimeSpanString(timeLeft, 0L, DateUtils.SECOND_IN_MILLIS)
-					builder.setContentText(eta)
-				} else {
-					val percent = (state.percent * 100).format()
-					builder.setContentText(context.getString(R.string.percent_string_pattern, percent))
+			val summary = when (state) {
+				is DownloadState.Cancelled -> {
+					progress++
+					context.getString(R.string.cancelling_)
+				}
+				is DownloadState.Done -> {
+					progress++
+					context.getString(R.string.download_complete)
+				}
+				is DownloadState.Error -> {
+					isAllDone = false
+					context.getString(R.string.error)
+				}
+				is DownloadState.PostProcessing -> {
+					progress++
+					isInProgress = true
+					isAllDone = false
+					context.getString(R.string.processing_)
+				}
+				is DownloadState.Preparing -> {
+					isAllDone = false
+					isInProgress = true
+					context.getString(R.string.preparing_)
+				}
+				is DownloadState.Progress -> {
+					isAllDone = false
+					isInProgress = true
+					progress += state.percent
+					context.getString(R.string.percent_string_pattern, (state.percent * 100).format())
+				}
+				is DownloadState.Queued -> {
+					isAllDone = false
+					isInProgress = true
+					context.getString(R.string.queued)
 				}
-				builder.setCategory(NotificationCompat.CATEGORY_PROGRESS)
-				builder.setStyle(null)
-				builder.setOngoing(true)
-				builder.addAction(cancelAction)
-			}
-			is DownloadState.WaitingForNetwork -> {
-				builder.setProgress(0, 0, false)
-				builder.setContentText(context.getString(R.string.waiting_for_network))
-				builder.setStyle(null)
-				builder.setOngoing(true)
-				builder.addAction(cancelAction)
 			}
+			style.addLine(
+				context.getString(
+					R.string.download_summary_pattern,
+					state.manga.title.ellipsize(16).htmlEncode(),
+					summary.htmlEncode(),
+				).parseAsHtml(HtmlCompat.FROM_HTML_MODE_LEGACY),
+			)
 		}
-		return builder.build()
+		progress = if (isInProgress) {
+			progress / states.size.toFloat()
+		} else {
+			1f
+		}
+		style.setBigContentTitle(
+			context.getString(if (isAllDone) R.string.download_complete else R.string.downloading_manga),
+		)
+		groupBuilder.setContentText(context.resources.getQuantityString(R.plurals.items, states.size, states.size()))
+		groupBuilder.setNumber(states.size)
+		groupBuilder.setSmallIcon(
+			if (isInProgress) android.R.drawable.stat_sys_download else android.R.drawable.stat_sys_download_done,
+		)
+		groupBuilder.setAutoCancel(isAllDone)
+		when (progress) {
+			1f -> groupBuilder.setProgress(0, 0, false)
+			0f -> groupBuilder.setProgress(1, 0, true)
+			else -> groupBuilder.setProgress(100, (progress * 100f).toInt(), false)
+		}
+		return groupBuilder.build()
+	}
+
+	fun detach() {
+		if (states.isNotEmpty()) {
+			val notification = buildGroupNotification()
+			manager.notify(ID_GROUP_DETACHED, notification)
+		}
+		manager.cancel(ID_GROUP)
+	}
+
+	fun newItem(startId: Int) = Item(startId)
+
+	inner class Item(
+		private val startId: Int,
+	) {
+
+		private val builder = NotificationCompat.Builder(context, CHANNEL_ID)
+		private val cancelAction = NotificationCompat.Action(
+			materialR.drawable.material_ic_clear_black_24dp,
+			context.getString(android.R.string.cancel),
+			PendingIntent.getBroadcast(
+				context,
+				startId * 2,
+				DownloadService.getCancelIntent(startId),
+				PendingIntent.FLAG_CANCEL_CURRENT or PendingIntentCompat.FLAG_IMMUTABLE,
+			),
+		)
+		private val retryAction = NotificationCompat.Action(
+			R.drawable.ic_restart_black,
+			context.getString(R.string.try_again),
+			PendingIntent.getBroadcast(
+				context,
+				startId * 2 + 1,
+				DownloadService.getResumeIntent(startId),
+				PendingIntent.FLAG_CANCEL_CURRENT or PendingIntentCompat.FLAG_IMMUTABLE,
+			),
+		)
+
+		init {
+			builder.setOnlyAlertOnce(true)
+			builder.setDefaults(0)
+			builder.color = ContextCompat.getColor(context, R.color.blue_primary)
+			builder.foregroundServiceBehavior = NotificationCompat.FOREGROUND_SERVICE_IMMEDIATE
+			builder.setSilent(true)
+			builder.setGroup(GROUP_ID)
+			builder.setGroupAlertBehavior(NotificationCompat.GROUP_ALERT_CHILDREN)
+		}
+
+		fun notify(state: DownloadState, timeLeft: Long) {
+			builder.setContentTitle(state.manga.title)
+			builder.setContentText(context.getString(R.string.manga_downloading_))
+			builder.setProgress(1, 0, true)
+			builder.setSmallIcon(android.R.drawable.stat_sys_download)
+			builder.setContentIntent(listIntent)
+			builder.setStyle(null)
+			builder.setLargeIcon(state.cover?.toBitmap())
+			builder.clearActions()
+			builder.setSubText(null)
+			builder.setShowWhen(false)
+			builder.setVisibility(
+				if (state.manga.isNsfw) {
+					NotificationCompat.VISIBILITY_PRIVATE
+				} else {
+					NotificationCompat.VISIBILITY_PUBLIC
+				},
+			)
+			when (state) {
+				is DownloadState.Cancelled -> {
+					builder.setProgress(1, 0, true)
+					builder.setContentText(context.getString(R.string.cancelling_))
+					builder.setContentIntent(null)
+					builder.setStyle(null)
+					builder.setOngoing(true)
+					builder.priority = NotificationCompat.PRIORITY_DEFAULT
+				}
+				is DownloadState.Done -> {
+					builder.setProgress(0, 0, false)
+					builder.setContentText(context.getString(R.string.download_complete))
+					builder.setContentIntent(createMangaIntent(context, state.localManga))
+					builder.setAutoCancel(true)
+					builder.setSmallIcon(android.R.drawable.stat_sys_download_done)
+					builder.setCategory(null)
+					builder.setStyle(null)
+					builder.setOngoing(false)
+					builder.setShowWhen(true)
+					builder.setWhen(System.currentTimeMillis())
+					builder.priority = NotificationCompat.PRIORITY_DEFAULT
+				}
+				is DownloadState.Error -> {
+					val message = state.error.getDisplayMessage(context.resources)
+					builder.setProgress(0, 0, false)
+					builder.setSmallIcon(android.R.drawable.stat_notify_error)
+					builder.setSubText(context.getString(R.string.error))
+					builder.setContentText(message)
+					builder.setAutoCancel(!state.canRetry)
+					builder.setOngoing(state.canRetry)
+					builder.setCategory(NotificationCompat.CATEGORY_ERROR)
+					builder.setShowWhen(true)
+					builder.setWhen(System.currentTimeMillis())
+					builder.setStyle(NotificationCompat.BigTextStyle().bigText(message))
+					if (state.canRetry) {
+						builder.addAction(cancelAction)
+						builder.addAction(retryAction)
+					}
+					builder.priority = NotificationCompat.PRIORITY_DEFAULT
+				}
+				is DownloadState.PostProcessing -> {
+					builder.setProgress(1, 0, true)
+					builder.setContentText(context.getString(R.string.processing_))
+					builder.setStyle(null)
+					builder.setOngoing(true)
+					builder.priority = NotificationCompat.PRIORITY_DEFAULT
+				}
+				is DownloadState.Queued -> {
+					builder.setProgress(0, 0, false)
+					builder.setContentText(context.getString(R.string.queued))
+					builder.setStyle(null)
+					builder.setOngoing(true)
+					builder.addAction(cancelAction)
+					builder.priority = NotificationCompat.PRIORITY_LOW
+				}
+				is DownloadState.Preparing -> {
+					builder.setProgress(1, 0, true)
+					builder.setContentText(context.getString(R.string.preparing_))
+					builder.setStyle(null)
+					builder.setOngoing(true)
+					builder.addAction(cancelAction)
+					builder.priority = NotificationCompat.PRIORITY_DEFAULT
+				}
+				is DownloadState.Progress -> {
+					builder.setProgress(state.max, state.progress, false)
+					val percent = context.getString(R.string.percent_string_pattern, (state.percent * 100).format())
+					if (timeLeft > 0L) {
+						val eta = DateUtils.getRelativeTimeSpanString(timeLeft, 0L, DateUtils.SECOND_IN_MILLIS)
+						builder.setContentText(eta)
+						builder.setSubText(percent)
+					} else {
+						builder.setContentText(percent)
+					}
+					builder.setCategory(NotificationCompat.CATEGORY_PROGRESS)
+					builder.setStyle(null)
+					builder.setOngoing(true)
+					builder.addAction(cancelAction)
+					builder.priority = NotificationCompat.PRIORITY_DEFAULT
+				}
+			}
+			val notification = builder.build()
+			states.append(startId, state)
+			updateGroupNotification()
+			manager.notify(TAG, startId, notification)
+		}
+
+		fun dismiss() {
+			manager.cancel(TAG, startId)
+			states.remove(startId)
+			updateGroupNotification()
+		}
+	}
+
+	private fun updateGroupNotification() {
+		val notification = buildGroupNotification()
+		manager.notify(ID_GROUP, notification)
 	}
 
 	private fun createMangaIntent(context: Context, manga: Manga) = PendingIntent.getActivity(
 		context,
 		manga.hashCode(),
 		DetailsActivity.newIntent(context, manga),
-		PendingIntent.FLAG_CANCEL_CURRENT or PendingIntentCompat.FLAG_IMMUTABLE
+		PendingIntent.FLAG_CANCEL_CURRENT or PendingIntentCompat.FLAG_IMMUTABLE,
 	)
 
 	companion object {
 
+		private const val TAG = "download"
 		private const val CHANNEL_ID = "download"
+		private const val GROUP_ID = "downloads"
 		private const val REQUEST_LIST = 6
+		const val ID_GROUP = 9999
+		private const val ID_GROUP_DETACHED = 9998
 
 		fun createChannel(context: Context) {
 			if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
@@ -158,7 +316,7 @@ class DownloadNotification(private val context: Context, startId: Int) {
 					val channel = NotificationChannel(
 						CHANNEL_ID,
 						context.getString(R.string.downloads),
-						NotificationManager.IMPORTANCE_LOW
+						NotificationManager.IMPORTANCE_LOW,
 					)
 					channel.enableVibration(false)
 					channel.enableLights(false)

app/src/main/java/org/koitharu/kotatsu/download/ui/service/DownloadService.kt

@@ -8,12 +8,16 @@ import android.os.Binder
 import android.os.IBinder
 import android.os.PowerManager
 import android.widget.Toast
+import androidx.annotation.MainThread
+import androidx.core.app.ServiceCompat
 import androidx.core.content.ContextCompat
+import androidx.lifecycle.DefaultLifecycleObserver
+import androidx.lifecycle.LifecycleOwner
 import androidx.lifecycle.lifecycleScope
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
+import java.util.concurrent.TimeUnit
 import kotlinx.coroutines.flow.*
 import kotlinx.coroutines.launch
-import kotlinx.coroutines.plus
 import org.koin.android.ext.android.get
 import org.koin.core.context.GlobalContext
 import org.koitharu.kotatsu.BuildConfig
@@ -24,35 +28,37 @@ import org.koitharu.kotatsu.core.model.parcelable.ParcelableManga
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.download.domain.DownloadManager
 import org.koitharu.kotatsu.download.domain.DownloadState
-import org.koitharu.kotatsu.download.domain.WakeLockNode
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.utils.ext.connectivityManager
 import org.koitharu.kotatsu.utils.ext.throttle
+import org.koitharu.kotatsu.utils.progress.PausingProgressJob
 import org.koitharu.kotatsu.utils.progress.ProgressJob
 import org.koitharu.kotatsu.utils.progress.TimeLeftEstimator
-import java.util.concurrent.TimeUnit
 
 class DownloadService : BaseService() {
 
 	private lateinit var downloadManager: DownloadManager
-	private lateinit var notificationSwitcher: ForegroundNotificationSwitcher
+	private lateinit var downloadNotification: DownloadNotification
+	private lateinit var wakeLock: PowerManager.WakeLock
 
-	private val jobs = LinkedHashMap<Int, ProgressJob<DownloadState>>()
+	private val jobs = LinkedHashMap<Int, PausingProgressJob<DownloadState>>()
 	private val jobCount = MutableStateFlow(0)
 	private val controlReceiver = ControlReceiver()
-	private var binder: DownloadBinder? = null
 
 	override fun onCreate() {
 		super.onCreate()
 		isRunning = true
-		notificationSwitcher = ForegroundNotificationSwitcher(this)
-		val wakeLock = (getSystemService(Context.POWER_SERVICE) as PowerManager)
+		downloadNotification = DownloadNotification(this)
+		wakeLock = (applicationContext.getSystemService(Context.POWER_SERVICE) as PowerManager)
 			.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "kotatsu:downloading")
-		downloadManager = get<DownloadManager.Factory>().create(
-			coroutineScope = lifecycleScope + WakeLockNode(wakeLock, TimeUnit.HOURS.toMillis(1)),
-		)
+		wakeLock.acquire(TimeUnit.HOURS.toMillis(8))
+		downloadManager = get<DownloadManager.Factory>().create(lifecycleScope)
 		DownloadNotification.createChannel(this)
-		registerReceiver(controlReceiver, IntentFilter(ACTION_DOWNLOAD_CANCEL))
+		startForeground(DownloadNotification.ID_GROUP, downloadNotification.buildGroupNotification())
+		val intentFilter = IntentFilter()
+		intentFilter.addAction(ACTION_DOWNLOAD_CANCEL)
+		intentFilter.addAction(ACTION_DOWNLOAD_RESUME)
+		registerReceiver(controlReceiver, intentFilter)
 	}
 
 	override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
@@ -64,24 +70,19 @@ class DownloadService : BaseService() {
 			jobCount.value = jobs.size
 			START_REDELIVER_INTENT
 		} else {
-			stopSelf(startId)
+			stopSelfIfIdle()
 			START_NOT_STICKY
 		}
 	}
 
 	override fun onBind(intent: Intent): IBinder {
 		super.onBind(intent)
-		return binder ?: DownloadBinder(this).also { binder = it }
-	}
-
-	override fun onUnbind(intent: Intent?): Boolean {
-		binder = null
-		return super.onUnbind(intent)
+		return DownloadBinder(this)
 	}
 
 	override fun onDestroy() {
 		unregisterReceiver(controlReceiver)
-		binder = null
+		wakeLock.release()
 		isRunning = false
 		super.onDestroy()
 	}
@@ -90,7 +91,7 @@ class DownloadService : BaseService() {
 		startId: Int,
 		manga: Manga,
 		chaptersIds: LongArray?,
-	): ProgressJob<DownloadState> {
+	): PausingProgressJob<DownloadState> {
 		val job = downloadManager.downloadManga(manga, chaptersIds, startId)
 		listenJob(job)
 		return job
@@ -99,10 +100,10 @@ class DownloadService : BaseService() {
 	private fun listenJob(job: ProgressJob<DownloadState>) {
 		lifecycleScope.launch {
 			val startId = job.progressValue.startId
-			val notification = DownloadNotification(this@DownloadService, startId)
+			val notificationItem = downloadNotification.newItem(startId)
 			try {
 				val timeLeftEstimator = TimeLeftEstimator()
-				notificationSwitcher.notify(startId, notification.create(job.progressValue, -1L))
+				notificationItem.notify(job.progressValue, -1L)
 				job.progressAsFlow()
 					.onEach { state ->
 						if (state is DownloadState.Progress) {
@@ -115,26 +116,27 @@ class DownloadService : BaseService() {
 					.whileActive()
 					.collect { state ->
 						val timeLeft = timeLeftEstimator.getEstimatedTimeLeft()
-						notificationSwitcher.notify(startId, notification.create(state, timeLeft))
+						notificationItem.notify(state, timeLeft)
 					}
 				job.join()
 			} finally {
 				(job.progressValue as? DownloadState.Done)?.let {
 					sendBroadcast(
 						Intent(ACTION_DOWNLOAD_COMPLETE)
-							.putExtra(EXTRA_MANGA, ParcelableManga(it.localManga, withChapters = false))
+							.putExtra(EXTRA_MANGA, ParcelableManga(it.localManga, withChapters = false)),
 					)
 				}
-				notificationSwitcher.detach(
-					startId,
-					if (job.isCancelled) {
-						null
-					} else {
-						notification.create(job.progressValue, -1L)
+				if (job.isCancelled) {
+					notificationItem.dismiss()
+					if (jobs.remove(startId) != null) {
+						jobCount.value = jobs.size
 					}
-				)
-				stopSelf(startId)
+				} else {
+					notificationItem.notify(job.progressValue, -1L)
+				}
 			}
+		}.invokeOnCompletion {
+			stopSelfIfIdle()
 		}
 	}
 
@@ -144,7 +146,17 @@ class DownloadService : BaseService() {
 	}
 
 	private val DownloadState.isTerminal: Boolean
-		get() = this is DownloadState.Done || this is DownloadState.Error || this is DownloadState.Cancelled
+		get() = this is DownloadState.Done || this is DownloadState.Cancelled || (this is DownloadState.Error && !canRetry)
+
+	@MainThread
+	private fun stopSelfIfIdle() {
+		if (jobs.any { (_, job) -> job.isActive }) {
+			return
+		}
+		downloadNotification.detach()
+		ServiceCompat.stopForeground(this, ServiceCompat.STOP_FOREGROUND_REMOVE)
+		stopSelf()
+	}
 
 	inner class ControlReceiver : BroadcastReceiver() {
 
@@ -152,17 +164,37 @@ class DownloadService : BaseService() {
 			when (intent?.action) {
 				ACTION_DOWNLOAD_CANCEL -> {
 					val cancelId = intent.getIntExtra(EXTRA_CANCEL_ID, 0)
-					jobs.remove(cancelId)?.cancel()
-					jobCount.value = jobs.size
+					jobs[cancelId]?.cancel()
+					// jobs.remove(cancelId)?.cancel()
+					// jobCount.value = jobs.size
+				}
+				ACTION_DOWNLOAD_RESUME -> {
+					val cancelId = intent.getIntExtra(EXTRA_CANCEL_ID, 0)
+					jobs[cancelId]?.resume()
 				}
 			}
 		}
 	}
 
-	class DownloadBinder(private val service: DownloadService) : Binder() {
+	class DownloadBinder(service: DownloadService) : Binder(), DefaultLifecycleObserver {
 
-		val downloads: Flow<Collection<ProgressJob<DownloadState>>>
-			get() = service.jobCount.mapLatest { service.jobs.values }
+		private var downloadsStateFlow = MutableStateFlow<List<PausingProgressJob<DownloadState>>>(emptyList())
+
+		init {
+			service.lifecycle.addObserver(this)
+			service.jobCount.onEach {
+				downloadsStateFlow.value = service.jobs.values.toList()
+			}.launchIn(service.lifecycleScope)
+		}
+
+		override fun onDestroy(owner: LifecycleOwner) {
+			owner.lifecycle.removeObserver(this)
+			downloadsStateFlow.value = emptyList()
+			super.onDestroy(owner)
+		}
+
+		val downloads
+			get() = downloadsStateFlow.asStateFlow()
 	}
 
 	companion object {
@@ -173,6 +205,7 @@ class DownloadService : BaseService() {
 		const val ACTION_DOWNLOAD_COMPLETE = "${BuildConfig.APPLICATION_ID}.action.ACTION_DOWNLOAD_COMPLETE"
 
 		private const val ACTION_DOWNLOAD_CANCEL = "${BuildConfig.APPLICATION_ID}.action.ACTION_DOWNLOAD_CANCEL"
+		private const val ACTION_DOWNLOAD_RESUME = "${BuildConfig.APPLICATION_ID}.action.ACTION_DOWNLOAD_RESUME"
 
 		private const val EXTRA_MANGA = "manga"
 		private const val EXTRA_CHAPTERS_IDS = "chapters_ids"
@@ -219,6 +252,9 @@ class DownloadService : BaseService() {
 		fun getCancelIntent(startId: Int) = Intent(ACTION_DOWNLOAD_CANCEL)
 			.putExtra(EXTRA_CANCEL_ID, startId)
 
+		fun getResumeIntent(startId: Int) = Intent(ACTION_DOWNLOAD_RESUME)
+			.putExtra(EXTRA_CANCEL_ID, startId)
+
 		fun getDownloadedManga(intent: Intent?): Manga? {
 			if (intent?.action == ACTION_DOWNLOAD_COMPLETE) {
 				return intent.getParcelableExtra<ParcelableManga>(EXTRA_MANGA)?.manga

app/src/main/java/org/koitharu/kotatsu/download/ui/service/ForegroundNotificationSwitcher.kt

@@ -1,62 +0,0 @@
-package org.koitharu.kotatsu.download.ui.service
-
-import android.app.Notification
-import android.app.NotificationManager
-import android.app.Service
-import android.content.Context
-import android.os.Handler
-import android.os.Looper
-import android.util.SparseArray
-import androidx.core.app.ServiceCompat
-import androidx.core.util.isEmpty
-import androidx.core.util.size
-
-private const val DEFAULT_DELAY = 500L
-
-class ForegroundNotificationSwitcher(
-	private val service: Service,
-) {
-
-	private val notificationManager = service.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
-	private val notifications = SparseArray<Notification>()
-	private val handler = Handler(Looper.getMainLooper())
-
-	@Synchronized
-	fun notify(startId: Int, notification: Notification) {
-		if (notifications.isEmpty()) {
-			service.startForeground(startId, notification)
-		} else {
-			notificationManager.notify(startId, notification)
-		}
-		notifications[startId] = notification
-	}
-
-	@Synchronized
-	fun detach(startId: Int, notification: Notification?) {
-		notifications.remove(startId)
-		if (notifications.isEmpty()) {
-			ServiceCompat.stopForeground(service, ServiceCompat.STOP_FOREGROUND_DETACH)
-		}
-		val nextIndex = notifications.size - 1
-		if (nextIndex >= 0) {
-			val nextStartId = notifications.keyAt(nextIndex)
-			val nextNotification = notifications.valueAt(nextIndex)
-			service.startForeground(nextStartId, nextNotification)
-		}
-		handler.postDelayed(NotifyRunnable(startId, notification), DEFAULT_DELAY)
-	}
-
-	private inner class NotifyRunnable(
-		private val startId: Int,
-		private val notification: Notification?,
-	) : Runnable {
-
-		override fun run() {
-			if (notification != null) {
-				notificationManager.notify(startId, notification)
-			} else {
-				notificationManager.cancel(startId)
-			}
-		}
-	}
-}

app/src/main/java/org/koitharu/kotatsu/download/ui/service/PausingHandle.kt

@@ -0,0 +1,30 @@
+package org.koitharu.kotatsu.download.ui.service
+
+import androidx.annotation.AnyThread
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.filter
+import kotlinx.coroutines.flow.first
+
+class PausingHandle {
+
+	private val paused = MutableStateFlow(false)
+
+	@get:AnyThread
+	val isPaused: Boolean
+		get() = paused.value
+
+	@AnyThread
+	suspend fun awaitResumed() {
+		paused.filter { !it }.first()
+	}
+
+	@AnyThread
+	fun pause() {
+		paused.value = true
+	}
+
+	@AnyThread
+	fun resume() {
+		paused.value = false
+	}
+}

app/src/main/java/org/koitharu/kotatsu/favourites/data/FavouriteCategoryEntity.kt

@@ -3,9 +3,10 @@ package org.koitharu.kotatsu.favourites.data
 import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.PrimaryKey
+import org.koitharu.kotatsu.core.db.TABLE_FAVOURITE_CATEGORIES
 
-@Entity(tableName = "favourite_categories")
-class FavouriteCategoryEntity(
+@Entity(tableName = TABLE_FAVOURITE_CATEGORIES)
+data class FavouriteCategoryEntity(
 	@PrimaryKey(autoGenerate = true)
 	@ColumnInfo(name = "category_id") val categoryId: Int,
 	@ColumnInfo(name = "created_at") val createdAt: Long,

app/src/main/java/org/koitharu/kotatsu/favourites/data/FavouriteEntity.kt

@@ -3,10 +3,13 @@ package org.koitharu.kotatsu.favourites.data
 import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.ForeignKey
+import org.koitharu.kotatsu.core.db.TABLE_FAVOURITES
 import org.koitharu.kotatsu.core.db.entity.MangaEntity
 
 @Entity(
-	tableName = "favourites", primaryKeys = ["manga_id", "category_id"], foreignKeys = [
+	tableName = TABLE_FAVOURITES,
+	primaryKeys = ["manga_id", "category_id"],
+	foreignKeys = [
 		ForeignKey(
 			entity = MangaEntity::class,
 			parentColumns = ["manga_id"],
@@ -21,8 +24,8 @@ import org.koitharu.kotatsu.core.db.entity.MangaEntity
 		)
 	]
 )
-class FavouriteEntity(
+data class FavouriteEntity(
 	@ColumnInfo(name = "manga_id", index = true) val mangaId: Long,
 	@ColumnInfo(name = "category_id", index = true) val categoryId: Long,
-	@ColumnInfo(name = "created_at") val createdAt: Long
+	@ColumnInfo(name = "created_at") val createdAt: Long,
 )

app/src/main/java/org/koitharu/kotatsu/favourites/ui/FavouritesContainerFragment.kt

@@ -148,7 +148,12 @@ class FavouritesContainerFragment :
 		menu.setOnMenuItemClickListener {
 			when (it.itemId) {
 				R.id.action_remove -> editDelegate.deleteCategory(category)
-				R.id.action_edit -> startActivity(FavouritesCategoryEditActivity.newIntent(tabView.context, category.id))
+				R.id.action_edit -> startActivity(
+					FavouritesCategoryEditActivity.newIntent(
+						tabView.context,
+						category.id
+					)
+				)
 				else -> return@setOnMenuItemClickListener false
 			}
 			true
@@ -172,7 +177,7 @@ class FavouritesContainerFragment :
 	private fun showStub() {
 		val stub = stubBinding ?: ItemEmptyStateBinding.bind(binding.stubEmptyState.inflate())
 		stub.root.isVisible = true
-		stub.icon.setImageResource(R.drawable.ic_heart_outline)
+		stub.icon.setImageResource(R.drawable.ic_empty_favourites)
 		stub.textPrimary.setText(R.string.text_empty_holder_primary)
 		stub.textSecondary.setText(R.string.empty_favourite_categories)
 		stub.buttonRetry.setText(R.string.add)

app/src/main/java/org/koitharu/kotatsu/favourites/ui/categories/edit/FavouritesCategoryEditActivity.kt

@@ -3,6 +3,8 @@ package org.koitharu.kotatsu.favourites.ui.categories.edit
 import android.content.Context
 import android.content.Intent
 import android.os.Bundle
+import android.text.Editable
+import android.text.TextWatcher
 import android.view.View
 import android.view.ViewGroup
 import android.widget.AdapterView
@@ -24,7 +26,7 @@ import org.koitharu.kotatsu.parsers.model.SortOrder
 import org.koitharu.kotatsu.utils.ext.getDisplayMessage
 
 class FavouritesCategoryEditActivity : BaseActivity<ActivityCategoryEditBinding>(), AdapterView.OnItemClickListener,
-	View.OnClickListener {
+	View.OnClickListener, TextWatcher {
 
 	private val viewModel by viewModel<FavouritesCategoryEditViewModel> {
 		parametersOf(intent.getLongExtra(EXTRA_ID, NO_ID))
@@ -40,6 +42,8 @@ class FavouritesCategoryEditActivity : BaseActivity<ActivityCategoryEditBinding>
 		}
 		initSortSpinner()
 		binding.buttonDone.setOnClickListener(this)
+		binding.editName.addTextChangedListener(this)
+		afterTextChanged(binding.editName.text)
 
 		viewModel.onSaved.observe(this) { finishAfterTransition() }
 		viewModel.category.observe(this, ::onCategoryChanged)
@@ -66,13 +70,21 @@ class FavouritesCategoryEditActivity : BaseActivity<ActivityCategoryEditBinding>
 	override fun onClick(v: View) {
 		when (v.id) {
 			R.id.button_done -> viewModel.save(
-				title = binding.editName.text?.toString().orEmpty(),
+				title = binding.editName.text?.toString()?.trim().orEmpty(),
 				sortOrder = getSelectedSortOrder(),
 				isTrackerEnabled = binding.switchTracker.isChecked,
 			)
 		}
 	}
 
+	override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) = Unit
+
+	override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) = Unit
+
+	override fun afterTextChanged(s: Editable?) {
+		binding.buttonDone.isEnabled = !s.isNullOrBlank()
+	}
+
 	override fun onWindowInsetsChanged(insets: Insets) {
 		binding.scrollView.updatePadding(
 			left = insets.left,

app/src/main/java/org/koitharu/kotatsu/favourites/ui/categories/edit/FavouritesCategoryEditViewModel.kt

@@ -42,6 +42,7 @@ class FavouritesCategoryEditViewModel(
 		isTrackerEnabled: Boolean,
 	) {
 		launchLoadingJob {
+			check(title.isNotEmpty())
 			if (categoryId == NO_ID) {
 				repository.createCategory(title, sortOrder, isTrackerEnabled)
 			} else {

app/src/main/java/org/koitharu/kotatsu/favourites/ui/categories/select/FavouriteCategoriesBottomSheet.kt

@@ -2,9 +2,11 @@ package org.koitharu.kotatsu.favourites.ui.categories.select
 
 import android.os.Bundle
 import android.view.LayoutInflater
+import android.view.MenuItem
 import android.view.View
 import android.view.ViewGroup
 import android.widget.Toast
+import androidx.appcompat.widget.Toolbar
 import androidx.fragment.app.FragmentManager
 import org.koin.androidx.viewmodel.ext.android.viewModel
 import org.koin.core.parameter.parametersOf
@@ -26,7 +28,8 @@ class FavouriteCategoriesBottomSheet :
 	BaseBottomSheet<DialogFavoriteCategoriesBinding>(),
 	OnListItemClickListener<MangaCategoryItem>,
 	CategoriesEditDelegate.CategoriesEditCallback,
-	View.OnClickListener {
+	View.OnClickListener,
+	Toolbar.OnMenuItemClickListener {
 
 	private val viewModel by viewModel<MangaCategoriesViewModel> {
 		parametersOf(requireNotNull(arguments?.getParcelableArrayList<ParcelableManga>(KEY_MANGA_LIST)).map { it.manga })
@@ -44,7 +47,7 @@ class FavouriteCategoriesBottomSheet :
 		adapter = MangaCategoriesAdapter(this)
 		binding.recyclerViewCategories.adapter = adapter
 		binding.buttonDone.setOnClickListener(this)
-		binding.itemCreate.setOnClickListener(this)
+		binding.toolbar.setOnMenuItemClickListener(this)
 
 		viewModel.content.observe(viewLifecycleOwner, this::onContentChanged)
 		viewModel.onError.observe(viewLifecycleOwner, ::onError)
@@ -57,11 +60,18 @@ class FavouriteCategoriesBottomSheet :
 
 	override fun onClick(v: View) {
 		when (v.id) {
-			R.id.item_create -> startActivity(FavouritesCategoryEditActivity.newIntent(requireContext()))
 			R.id.button_done -> dismiss()
 		}
 	}
 
+	override fun onMenuItemClick(item: MenuItem): Boolean {
+		when (item.itemId) {
+			R.id.action_create -> startActivity(FavouritesCategoryEditActivity.newIntent(requireContext()))
+			else -> return false
+		}
+		return true
+	}
+
 	override fun onItemClick(item: MangaCategoryItem, view: View) {
 		viewModel.setChecked(item.id, !item.isChecked)
 	}

app/src/main/java/org/koitharu/kotatsu/favourites/ui/list/FavouritesListViewModel.kt

@@ -22,6 +22,7 @@ import org.koitharu.kotatsu.list.ui.model.toUi
 import org.koitharu.kotatsu.parsers.model.SortOrder
 import org.koitharu.kotatsu.tracker.domain.TrackingRepository
 import org.koitharu.kotatsu.utils.ext.asLiveDataDistinct
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable
 
 class FavouritesListViewModel(
 	private val categoryId: Long,
@@ -45,7 +46,7 @@ class FavouritesListViewModel(
 		} else {
 			repository.observeAll(categoryId)
 		},
-		createListModeFlow()
+		createListModeFlow(),
 	) { list, mode ->
 		when {
 			list.isEmpty() -> listOf(
@@ -58,8 +59,9 @@ class FavouritesListViewModel(
 						R.string.favourites_category_empty
 					},
 					actionStringRes = 0,
-				)
+				),
 			)
+
 			else -> list.toUi(mode, this)
 		}
 	}.catch {

app/src/main/java/org/koitharu/kotatsu/history/HistoryModule.kt

@@ -10,5 +10,5 @@ val historyModule
 
 		single { HistoryRepository(get(), get(), get(), getAll()) }
 
-		viewModel { HistoryListViewModel(get(), get(), get(), get()) }
+		viewModel { HistoryListViewModel(get(), get(), get()) }
 	}

app/src/main/java/org/koitharu/kotatsu/history/data/HistoryDao.kt

@@ -46,7 +46,7 @@ abstract class HistoryDao {
 	abstract fun observeCount(): Flow<Int>
 
 	@Query("SELECT percent FROM history WHERE manga_id = :id")
-	abstract fun findProgress(id: Long): Float?
+	abstract suspend fun findProgress(id: Long): Float?
 
 	@Query("DELETE FROM history")
 	abstract suspend fun clear()

app/src/main/java/org/koitharu/kotatsu/history/data/HistoryEntity.kt

@@ -4,10 +4,11 @@ import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.ForeignKey
 import androidx.room.PrimaryKey
+import org.koitharu.kotatsu.core.db.TABLE_HISTORY
 import org.koitharu.kotatsu.core.db.entity.MangaEntity
 
 @Entity(
-	tableName = "history",
+	tableName = TABLE_HISTORY,
 	foreignKeys = [
 		ForeignKey(
 			entity = MangaEntity::class,
@@ -17,7 +18,7 @@ import org.koitharu.kotatsu.core.db.entity.MangaEntity
 		)
 	]
 )
-class HistoryEntity(
+data class HistoryEntity(
 	@PrimaryKey(autoGenerate = false)
 	@ColumnInfo(name = "manga_id") val mangaId: Long,
 	@ColumnInfo(name = "created_at") val createdAt: Long,

app/src/main/java/org/koitharu/kotatsu/history/ui/HistoryListMenuProvider.kt

@@ -5,9 +5,9 @@ import android.view.Menu
 import android.view.MenuInflater
 import android.view.MenuItem
 import androidx.core.view.MenuProvider
+import com.google.android.material.R as materialR
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import org.koitharu.kotatsu.R
-import com.google.android.material.R as materialR
 
 class HistoryListMenuProvider(
 	private val context: Context,
@@ -38,6 +38,6 @@ class HistoryListMenuProvider(
 	}
 
 	override fun onPrepareMenu(menu: Menu) {
-		menu.findItem(R.id.action_history_grouping).isChecked = viewModel.isGroupingEnabled.value == true
+		menu.findItem(R.id.action_history_grouping)?.isChecked = viewModel.isGroupingEnabled.value == true
 	}
 }

app/src/main/java/org/koitharu/kotatsu/history/ui/HistoryListViewModel.kt

@@ -9,8 +9,6 @@ import kotlinx.coroutines.flow.onEach
 import kotlinx.coroutines.flow.onStart
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.base.domain.ReversibleHandle
-import org.koitharu.kotatsu.base.domain.plus
-import org.koitharu.kotatsu.core.os.ShortcutsRepository
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.prefs.ListMode
 import org.koitharu.kotatsu.core.prefs.observeAsFlow
@@ -31,7 +29,6 @@ import java.util.concurrent.TimeUnit
 class HistoryListViewModel(
 	private val repository: HistoryRepository,
 	private val settings: AppSettings,
-	private val shortcutsRepository: ShortcutsRepository,
 	private val trackingRepository: TrackingRepository,
 ) : MangaListViewModel(settings) {
 
@@ -72,7 +69,6 @@ class HistoryListViewModel(
 	fun clearHistory() {
 		launchLoadingJob {
 			repository.clear()
-			shortcutsRepository.updateShortcuts()
 		}
 	}
 
@@ -81,10 +77,7 @@ class HistoryListViewModel(
 			return
 		}
 		launchJob(Dispatchers.Default) {
-			val handle = repository.deleteReversible(ids) + ReversibleHandle {
-				shortcutsRepository.updateShortcuts()
-			}
-			shortcutsRepository.updateShortcuts()
+			val handle = repository.deleteReversible(ids)
 			onItemsRemoved.postCall(handle)
 		}
 	}

app/src/main/java/org/koitharu/kotatsu/list/ui/MangaListFragment.kt

@@ -68,7 +68,7 @@ abstract class MangaListFragment :
 
 	override fun onInflateView(
 		inflater: LayoutInflater,
-		container: ViewGroup?
+		container: ViewGroup?,
 	) = FragmentListBinding.inflate(inflater, container, false)
 
 	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
@@ -76,13 +76,13 @@ abstract class MangaListFragment :
 		listAdapter = MangaListAdapter(
 			coil = get(),
 			lifecycleOwner = viewLifecycleOwner,
-			listener = this,
+			listener = this
 		)
 		selectionController = ListSelectionController(
 			activity = requireActivity(),
 			decoration = MangaSelectionDecoration(view.context),
 			registryOwner = this,
-			callback = this,
+			callback = this
 		)
 		paginationListener = PaginationScrollListener(4, this)
 		with(binding.recyclerView) {
@@ -97,7 +97,7 @@ abstract class MangaListFragment :
 			setOnRefreshListener(this@MangaListFragment)
 			isEnabled = isSwipeRefreshEnabled
 		}
-		addMenuProvider(MangaListMenuProvider(childFragmentManager))
+		addMenuProvider(MangaListMenuProvider(this))
 
 		viewModel.listMode.observe(viewLifecycleOwner, ::onListModeChanged)
 		viewModel.gridScale.observe(viewLifecycleOwner, ::onGridScaleChanged)
@@ -171,21 +171,21 @@ abstract class MangaListFragment :
 		val headerHeight = (activity as? AppBarOwner)?.appBar?.measureHeight() ?: insets.top
 		binding.root.updatePadding(
 			left = insets.left,
-			right = insets.right,
+			right = insets.right
 		)
 		if (activity is MainActivity) {
 			binding.recyclerView.updatePadding(
 				top = headerHeight,
-				bottom = insets.bottom,
+				bottom = insets.bottom
 			)
 			binding.swipeRefreshLayout.setProgressViewOffset(
 				true,
 				headerHeight + resources.resolveDp(-72),
-				headerHeight + resources.resolveDp(10),
+				headerHeight + resources.resolveDp(10)
 			)
 		} else {
 			binding.recyclerView.updatePadding(
-				bottom = insets.bottom,
+				bottom = insets.bottom
 			)
 		}
 	}

app/src/main/java/org/koitharu/kotatsu/list/ui/MangaListMenuProvider.kt

@@ -4,11 +4,11 @@ import android.view.Menu
 import android.view.MenuInflater
 import android.view.MenuItem
 import androidx.core.view.MenuProvider
-import androidx.fragment.app.FragmentManager
+import androidx.fragment.app.Fragment
 import org.koitharu.kotatsu.R
 
 class MangaListMenuProvider(
-	private val fragmentManager: FragmentManager,
+	private val fragment: Fragment,
 ) : MenuProvider {
 
 	override fun onCreateMenu(menu: Menu, menuInflater: MenuInflater) {
@@ -17,7 +17,7 @@ class MangaListMenuProvider(
 
 	override fun onMenuItemSelected(menuItem: MenuItem): Boolean = when (menuItem.itemId) {
 		R.id.action_list_mode -> {
-			ListModeSelectDialog.show(fragmentManager)
+			ListModeSelectDialog.show(fragment.childFragmentManager)
 			true
 		}
 		else -> false

app/src/main/java/org/koitharu/kotatsu/list/ui/adapter/BadgeADUtil.kt

@@ -1,13 +1,16 @@
 @file:SuppressLint("UnsafeOptInUsageError")
+
 package org.koitharu.kotatsu.list.ui.adapter
 
 import android.annotation.SuppressLint
 import android.view.View
+import androidx.annotation.CheckResult
 import androidx.core.view.doOnNextLayout
 import com.google.android.material.badge.BadgeDrawable
 import com.google.android.material.badge.BadgeUtils
 import org.koitharu.kotatsu.R
 
+@CheckResult
 fun View.bindBadge(badge: BadgeDrawable?, counter: Int): BadgeDrawable? {
 	return if (counter > 0) {
 		val badgeDrawable = badge ?: initBadge(this)

app/src/main/java/org/koitharu/kotatsu/list/ui/adapter/EmptyStateListAD.kt

@@ -1,23 +1,31 @@
 package org.koitharu.kotatsu.list.ui.adapter
 
+import coil.ImageLoader
 import com.hannesdorfmann.adapterdelegates4.dsl.adapterDelegateViewBinding
 import org.koitharu.kotatsu.databinding.ItemEmptyStateBinding
 import org.koitharu.kotatsu.list.ui.model.EmptyState
 import org.koitharu.kotatsu.list.ui.model.ListModel
+import org.koitharu.kotatsu.utils.ext.disposeImageRequest
+import org.koitharu.kotatsu.utils.ext.enqueueWith
+import org.koitharu.kotatsu.utils.ext.newImageRequest
 import org.koitharu.kotatsu.utils.ext.setTextAndVisible
 
 fun emptyStateListAD(
+	coil: ImageLoader,
 	listener: MangaListListener,
 ) = adapterDelegateViewBinding<EmptyState, ListModel, ItemEmptyStateBinding>(
-	{ inflater, parent -> ItemEmptyStateBinding.inflate(inflater, parent, false) }
+	{ inflater, parent -> ItemEmptyStateBinding.inflate(inflater, parent, false) },
 ) {
-
 	binding.buttonRetry.setOnClickListener { listener.onEmptyActionClick() }
 
 	bind {
-		binding.icon.setImageResource(item.icon)
+		binding.icon.newImageRequest(item.icon)?.enqueueWith(coil)
 		binding.textPrimary.setText(item.textPrimary)
 		binding.textSecondary.setTextAndVisible(item.textSecondary)
 		binding.buttonRetry.setTextAndVisible(item.actionStringRes)
 	}
+
+	onViewRecycled {
+		binding.icon.disposeImageRequest()
+	}
 }

app/src/main/java/org/koitharu/kotatsu/list/ui/adapter/MangaGridItemAD.kt

@@ -3,9 +3,6 @@ package org.koitharu.kotatsu.list.ui.adapter
 import androidx.core.view.updateLayoutParams
 import androidx.lifecycle.LifecycleOwner
 import coil.ImageLoader
-import coil.request.Disposable
-import coil.size.Scale
-import coil.util.CoilUtils
 import com.google.android.material.badge.BadgeDrawable
 import com.hannesdorfmann.adapterdelegates4.dsl.adapterDelegateViewBinding
 import org.koitharu.kotatsu.R
@@ -16,9 +13,11 @@ import org.koitharu.kotatsu.list.ui.model.ListModel
 import org.koitharu.kotatsu.list.ui.model.MangaGridModel
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.search.ui.multi.adapter.ItemSizeResolver
+import org.koitharu.kotatsu.utils.ext.disposeImageRequest
 import org.koitharu.kotatsu.utils.ext.enqueueWith
 import org.koitharu.kotatsu.utils.ext.newImageRequest
 import org.koitharu.kotatsu.utils.ext.referer
+import org.koitharu.kotatsu.utils.image.CoverSizeResolver
 
 fun mangaGridItemAD(
 	coil: ImageLoader,
@@ -26,10 +25,8 @@ fun mangaGridItemAD(
 	clickListener: OnListItemClickListener<Manga>,
 	sizeResolver: ItemSizeResolver?,
 ) = adapterDelegateViewBinding<MangaGridModel, ListModel, ItemMangaGridBinding>(
-	{ inflater, parent -> ItemMangaGridBinding.inflate(inflater, parent, false) }
+	{ inflater, parent -> ItemMangaGridBinding.inflate(inflater, parent, false) },
 ) {
-
-	var imageRequest: Disposable? = null
 	var badge: BadgeDrawable? = null
 
 	itemView.setOnClickListener {
@@ -47,16 +44,16 @@ fun mangaGridItemAD(
 	bind { payloads ->
 		binding.textViewTitle.text = item.title
 		binding.progressView.setPercent(item.progress, MangaListAdapter.PAYLOAD_PROGRESS in payloads)
-		imageRequest?.dispose()
-		imageRequest = binding.imageViewCover.newImageRequest(item.coverUrl)
-			.referer(item.manga.publicUrl)
-			.placeholder(R.drawable.ic_placeholder)
-			.fallback(R.drawable.ic_placeholder)
-			.error(R.drawable.ic_placeholder)
-			.allowRgb565(true)
-			.scale(Scale.FILL)
-			.lifecycle(lifecycleOwner)
-			.enqueueWith(coil)
+		binding.imageViewCover.newImageRequest(item.coverUrl)?.run {
+			referer(item.manga.publicUrl)
+			size(CoverSizeResolver(binding.imageViewCover))
+			placeholder(R.drawable.ic_placeholder)
+			fallback(R.drawable.ic_placeholder)
+			error(R.drawable.ic_placeholder)
+			allowRgb565(true)
+			lifecycle(lifecycleOwner)
+			enqueueWith(coil)
+		}
 		badge = itemView.bindBadge(badge, item.counter)
 	}
 
@@ -64,9 +61,6 @@ fun mangaGridItemAD(
 		itemView.clearBadge(badge)
 		binding.progressView.percent = PROGRESS_NONE
 		badge = null
-		imageRequest?.dispose()
-		imageRequest = null
-		CoilUtils.dispose(binding.imageViewCover)
-		binding.imageViewCover.setImageDrawable(null)
+		binding.imageViewCover.disposeImageRequest()
 	}
 }

app/src/main/java/org/koitharu/kotatsu/list/ui/adapter/MangaListAdapter.kt

@@ -4,9 +4,9 @@ import androidx.lifecycle.LifecycleOwner
 import androidx.recyclerview.widget.DiffUtil
 import coil.ImageLoader
 import com.hannesdorfmann.adapterdelegates4.AsyncListDifferDelegationAdapter
+import kotlin.jvm.internal.Intrinsics
 import org.koitharu.kotatsu.core.ui.DateTimeAgo
 import org.koitharu.kotatsu.list.ui.model.*
-import kotlin.jvm.internal.Intrinsics
 
 class MangaListAdapter(
 	coil: ImageLoader,
@@ -24,7 +24,7 @@ class MangaListAdapter(
 			.addDelegate(ITEM_TYPE_DATE, relatedDateItemAD())
 			.addDelegate(ITEM_TYPE_ERROR_STATE, errorStateListAD(listener))
 			.addDelegate(ITEM_TYPE_ERROR_FOOTER, errorFooterAD(listener))
-			.addDelegate(ITEM_TYPE_EMPTY, emptyStateListAD(listener))
+			.addDelegate(ITEM_TYPE_EMPTY, emptyStateListAD(coil, listener))
 			.addDelegate(ITEM_TYPE_HEADER, listHeaderAD())
 			.addDelegate(ITEM_TYPE_FILTER, currentFilterAD(listener))
 			.addDelegate(ITEM_TYPE_HEADER_FILTER, listHeaderWithFilterAD(listener))

app/src/main/java/org/koitharu/kotatsu/list/ui/adapter/MangaListDetailedItemAD.kt

@@ -2,9 +2,6 @@ package org.koitharu.kotatsu.list.ui.adapter
 
 import androidx.lifecycle.LifecycleOwner
 import coil.ImageLoader
-import coil.request.Disposable
-import coil.size.Scale
-import coil.util.CoilUtils
 import com.google.android.material.badge.BadgeDrawable
 import com.hannesdorfmann.adapterdelegates4.dsl.adapterDelegateViewBinding
 import org.koitharu.kotatsu.R
@@ -14,20 +11,16 @@ import org.koitharu.kotatsu.history.domain.PROGRESS_NONE
 import org.koitharu.kotatsu.list.ui.model.ListModel
 import org.koitharu.kotatsu.list.ui.model.MangaListDetailedModel
 import org.koitharu.kotatsu.parsers.model.Manga
-import org.koitharu.kotatsu.utils.ext.enqueueWith
-import org.koitharu.kotatsu.utils.ext.newImageRequest
-import org.koitharu.kotatsu.utils.ext.referer
-import org.koitharu.kotatsu.utils.ext.textAndVisible
+import org.koitharu.kotatsu.utils.ext.*
+import org.koitharu.kotatsu.utils.image.CoverSizeResolver
 
 fun mangaListDetailedItemAD(
 	coil: ImageLoader,
 	lifecycleOwner: LifecycleOwner,
 	clickListener: OnListItemClickListener<Manga>,
 ) = adapterDelegateViewBinding<MangaListDetailedModel, ListModel, ItemMangaListDetailsBinding>(
-	{ inflater, parent -> ItemMangaListDetailsBinding.inflate(inflater, parent, false) }
+	{ inflater, parent -> ItemMangaListDetailsBinding.inflate(inflater, parent, false) },
 ) {
-
-	var imageRequest: Disposable? = null
 	var badge: BadgeDrawable? = null
 
 	itemView.setOnClickListener {
@@ -38,31 +31,28 @@ fun mangaListDetailedItemAD(
 	}
 
 	bind { payloads ->
-		imageRequest?.dispose()
 		binding.textViewTitle.text = item.title
 		binding.textViewSubtitle.textAndVisible = item.subtitle
 		binding.progressView.setPercent(item.progress, MangaListAdapter.PAYLOAD_PROGRESS in payloads)
-		imageRequest = binding.imageViewCover.newImageRequest(item.coverUrl)
-			.referer(item.manga.publicUrl)
-			.placeholder(R.drawable.ic_placeholder)
-			.fallback(R.drawable.ic_placeholder)
-			.error(R.drawable.ic_placeholder)
-			.scale(Scale.FILL)
-			.allowRgb565(true)
-			.lifecycle(lifecycleOwner)
-			.enqueueWith(coil)
+		binding.imageViewCover.newImageRequest(item.coverUrl)?.run {
+			referer(item.manga.publicUrl)
+			size(CoverSizeResolver(binding.imageViewCover))
+			placeholder(R.drawable.ic_placeholder)
+			fallback(R.drawable.ic_placeholder)
+			error(R.drawable.ic_placeholder)
+			allowRgb565(true)
+			lifecycle(lifecycleOwner)
+			enqueueWith(coil)
+		}
 		binding.textViewRating.textAndVisible = item.rating
 		binding.textViewTags.text = item.tags
-		itemView.bindBadge(badge, item.counter)
+		badge = itemView.bindBadge(badge, item.counter)
 	}
 
 	onViewRecycled {
 		itemView.clearBadge(badge)
 		binding.progressView.percent = PROGRESS_NONE
 		badge = null
-		imageRequest?.dispose()
-		imageRequest = null
-		CoilUtils.dispose(binding.imageViewCover)
-		binding.imageViewCover.setImageDrawable(null)
+		binding.imageViewCover.disposeImageRequest()
 	}
 }

app/src/main/java/org/koitharu/kotatsu/list/ui/adapter/MangaListItemAD.kt

@@ -2,9 +2,6 @@ package org.koitharu.kotatsu.list.ui.adapter
 
 import androidx.lifecycle.LifecycleOwner
 import coil.ImageLoader
-import coil.request.Disposable
-import coil.size.Scale
-import coil.util.CoilUtils
 import com.google.android.material.badge.BadgeDrawable
 import com.hannesdorfmann.adapterdelegates4.dsl.adapterDelegateViewBinding
 import org.koitharu.kotatsu.R
@@ -13,20 +10,15 @@ import org.koitharu.kotatsu.databinding.ItemMangaListBinding
 import org.koitharu.kotatsu.list.ui.model.ListModel
 import org.koitharu.kotatsu.list.ui.model.MangaListModel
 import org.koitharu.kotatsu.parsers.model.Manga
-import org.koitharu.kotatsu.utils.ext.enqueueWith
-import org.koitharu.kotatsu.utils.ext.newImageRequest
-import org.koitharu.kotatsu.utils.ext.referer
-import org.koitharu.kotatsu.utils.ext.textAndVisible
+import org.koitharu.kotatsu.utils.ext.*
 
 fun mangaListItemAD(
 	coil: ImageLoader,
 	lifecycleOwner: LifecycleOwner,
 	clickListener: OnListItemClickListener<Manga>,
 ) = adapterDelegateViewBinding<MangaListModel, ListModel, ItemMangaListBinding>(
-	{ inflater, parent -> ItemMangaListBinding.inflate(inflater, parent, false) }
+	{ inflater, parent -> ItemMangaListBinding.inflate(inflater, parent, false) },
 ) {
-
-	var imageRequest: Disposable? = null
 	var badge: BadgeDrawable? = null
 
 	itemView.setOnClickListener {
@@ -37,27 +29,23 @@ fun mangaListItemAD(
 	}
 
 	bind {
-		imageRequest?.dispose()
 		binding.textViewTitle.text = item.title
 		binding.textViewSubtitle.textAndVisible = item.subtitle
-		imageRequest = binding.imageViewCover.newImageRequest(item.coverUrl)
-			.referer(item.manga.publicUrl)
-			.placeholder(R.drawable.ic_placeholder)
-			.fallback(R.drawable.ic_placeholder)
-			.error(R.drawable.ic_placeholder)
-			.scale(Scale.FILL)
-			.allowRgb565(true)
-			.lifecycle(lifecycleOwner)
-			.enqueueWith(coil)
-		itemView.bindBadge(badge, item.counter)
+		binding.imageViewCover.newImageRequest(item.coverUrl)?.run {
+			referer(item.manga.publicUrl)
+			placeholder(R.drawable.ic_placeholder)
+			fallback(R.drawable.ic_placeholder)
+			error(R.drawable.ic_placeholder)
+			allowRgb565(true)
+			lifecycle(lifecycleOwner)
+			enqueueWith(coil)
+		}
+		badge = itemView.bindBadge(badge, item.counter)
 	}
 
 	onViewRecycled {
 		itemView.clearBadge(badge)
 		badge = null
-		imageRequest?.dispose()
-		imageRequest = null
-		CoilUtils.dispose(binding.imageViewCover)
-		binding.imageViewCover.setImageDrawable(null)
+		binding.imageViewCover.disposeImageRequest()
 	}
 }

app/src/main/java/org/koitharu/kotatsu/list/ui/filter/FilterCoordinator.kt

@@ -6,15 +6,22 @@ import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.CoroutineStart
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.async
-import kotlinx.coroutines.flow.*
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.combine
+import kotlinx.coroutines.flow.flow
+import kotlinx.coroutines.flow.update
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.base.domain.MangaDataRepository
 import org.koitharu.kotatsu.core.parser.RemoteMangaRepository
 import org.koitharu.kotatsu.parsers.model.MangaTag
 import org.koitharu.kotatsu.utils.ext.asLiveDataDistinct
 import org.koitharu.kotatsu.utils.ext.printStackTraceDebug
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable
 import java.text.Collator
-import java.util.*
+import java.util.Locale
+import java.util.TreeSet
 
 class FilterCoordinator(
 	private val repository: RemoteMangaRepository,
@@ -152,7 +159,7 @@ class FilterCoordinator(
 	}
 
 	private fun loadTagsAsync() = coroutineScope.async(Dispatchers.Default, CoroutineStart.LAZY) {
-		runCatching {
+		runCatchingCancellable {
 			repository.getTags()
 		}.onFailure { error ->
 			error.printStackTraceDebug()
@@ -203,4 +210,4 @@ class FilterCoordinator(
 			return collator?.compare(t1, t2) ?: compareValues(t1, t2)
 		}
 	}
-}
+}

app/src/main/java/org/koitharu/kotatsu/local/LocalModule.kt

@@ -16,5 +16,5 @@ val localModule
 
 		factory { DownloadManager.Factory(androidContext(), get(), get(), get(), get(), get()) }
 
-		viewModel { LocalListViewModel(get(), get(), get(), get()) }
+		viewModel { LocalListViewModel(get(), get(), get()) }
 	}

app/src/main/java/org/koitharu/kotatsu/local/domain/CbzMangaOutput.kt

@@ -1,6 +1,8 @@
 package org.koitharu.kotatsu.local.domain
 
 import androidx.annotation.WorkerThread
+import java.io.File
+import java.util.zip.ZipFile
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.runInterruptible
 import okio.Closeable
@@ -11,8 +13,6 @@ import org.koitharu.kotatsu.parsers.model.MangaChapter
 import org.koitharu.kotatsu.parsers.util.toFileNameSafe
 import org.koitharu.kotatsu.utils.ext.deleteAwait
 import org.koitharu.kotatsu.utils.ext.readText
-import java.io.File
-import java.util.zip.ZipFile
 
 class CbzMangaOutput(
 	val file: File,
@@ -62,7 +62,7 @@ class CbzMangaOutput(
 		index.addChapter(chapter)
 	}
 
-	suspend fun finalize() {
+	suspend fun finish() {
 		runInterruptible(Dispatchers.IO) {
 			output.put(ENTRY_NAME_INDEX, index.toString())
 			output.finish()
@@ -89,7 +89,7 @@ class CbzMangaOutput(
 					otherIndex = MangaIndex(
 						zip.getInputStream(entry).use {
 							it.reader().readText()
-						}
+						},
 					)
 				} else {
 					output.copyEntryFrom(zip, entry)

app/src/main/java/org/koitharu/kotatsu/local/domain/LocalMangaRepository.kt

@@ -8,19 +8,31 @@ import androidx.collection.ArraySet
 import androidx.core.net.toFile
 import androidx.core.net.toUri
 import java.io.File
-import java.io.IOException
-import java.util.*
+import java.util.Enumeration
 import java.util.zip.ZipEntry
 import java.util.zip.ZipFile
 import kotlin.coroutines.CoroutineContext
-import kotlinx.coroutines.*
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Deferred
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.async
+import kotlinx.coroutines.awaitAll
+import kotlinx.coroutines.coroutineScope
+import kotlinx.coroutines.runInterruptible
+import kotlinx.coroutines.withContext
+import okio.IOException
 import org.koitharu.kotatsu.core.exceptions.UnsupportedFileException
 import org.koitharu.kotatsu.core.parser.MangaRepository
 import org.koitharu.kotatsu.local.data.CbzFilter
 import org.koitharu.kotatsu.local.data.LocalStorageManager
 import org.koitharu.kotatsu.local.data.MangaIndex
 import org.koitharu.kotatsu.local.data.TempFileFilter
-import org.koitharu.kotatsu.parsers.model.*
+import org.koitharu.kotatsu.parsers.model.Manga
+import org.koitharu.kotatsu.parsers.model.MangaChapter
+import org.koitharu.kotatsu.parsers.model.MangaPage
+import org.koitharu.kotatsu.parsers.model.MangaSource
+import org.koitharu.kotatsu.parsers.model.MangaTag
+import org.koitharu.kotatsu.parsers.model.SortOrder
 import org.koitharu.kotatsu.parsers.util.toCamelCase
 import org.koitharu.kotatsu.utils.AlphanumComparator
 import org.koitharu.kotatsu.utils.CompositeMutex
@@ -28,6 +40,7 @@ import org.koitharu.kotatsu.utils.ext.deleteAwait
 import org.koitharu.kotatsu.utils.ext.longHashCode
 import org.koitharu.kotatsu.utils.ext.readText
 import org.koitharu.kotatsu.utils.ext.resolveName
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable
 
 private const val MAX_PARALLELISM = 4
 
@@ -48,6 +61,7 @@ class LocalMangaRepository(private val storageManager: LocalStorageManager) : Ma
 					x.altTitle?.contains(query, ignoreCase = true) == true
 			}
 		}
+		list.sortWith(compareBy(AlphanumComparator()) { x -> x.title })
 		return list
 	}
 
@@ -61,6 +75,7 @@ class LocalMangaRepository(private val storageManager: LocalStorageManager) : Ma
 				x.tags.containsAll(tags)
 			}
 		}
+		list.sortWith(compareBy(AlphanumComparator()) { x -> x.title })
 		return list
 	}
 
@@ -68,6 +83,7 @@ class LocalMangaRepository(private val storageManager: LocalStorageManager) : Ma
 		manga.source != MangaSource.LOCAL -> requireNotNull(findSavedManga(manga)) {
 			"Manga is not local or saved"
 		}
+
 		else -> getFromFile(Uri.parse(manga.url).toFile())
 	}
 
@@ -86,7 +102,7 @@ class LocalMangaRepository(private val storageManager: LocalStorageManager) : Ma
 				entries.filter { x ->
 					!x.isDirectory && x.name.substringBeforeLast(
 						File.separatorChar,
-						""
+						"",
 					) == parent
 				}
 			}
@@ -138,11 +154,11 @@ class LocalMangaRepository(private val storageManager: LocalStorageManager) : Ma
 				url = fileUri,
 				coverUrl = zipUri(
 					file,
-					entryName = index.getCoverEntry() ?: findFirstImageEntry(zip.entries())?.name.orEmpty()
+					entryName = index.getCoverEntry() ?: findFirstImageEntry(zip.entries())?.name.orEmpty(),
 				),
 				chapters = info.chapters?.map { c ->
 					c.copy(url = fileUri, source = MangaSource.LOCAL)
-				}
+				},
 			)
 		}
 		// fallback
@@ -211,7 +227,7 @@ class LocalMangaRepository(private val storageManager: LocalStorageManager) : Ma
 					return@runInterruptible info.copy2(
 						source = MangaSource.LOCAL,
 						url = fileUri,
-						chapters = info.chapters?.map { c -> c.copy(url = fileUri) }
+						chapters = info.chapters?.map { c -> c.copy(url = fileUri) },
 					)
 				}
 			}
@@ -224,7 +240,7 @@ class LocalMangaRepository(private val storageManager: LocalStorageManager) : Ma
 		context: CoroutineContext,
 	): Deferred<Manga?> = async(context) {
 		runInterruptible {
-			runCatching { getFromFile(file) }.getOrNull()
+			runCatchingCancellable { getFromFile(file) }.getOrNull()
 		}
 	}
 
@@ -288,7 +304,7 @@ class LocalMangaRepository(private val storageManager: LocalStorageManager) : Ma
 		locks.lock(id)
 	}
 
-	suspend fun unlockManga(id: Long) {
+	fun unlockManga(id: Long) {
 		locks.unlock(id)
 	}
 

app/src/main/java/org/koitharu/kotatsu/local/ui/LocalListViewModel.kt

@@ -3,6 +3,7 @@ package org.koitharu.kotatsu.local.ui
 import android.net.Uri
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.viewModelScope
+import kotlinx.coroutines.CancellationException
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.flow.MutableStateFlow
@@ -10,8 +11,8 @@ import kotlinx.coroutines.flow.combine
 import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
+import okio.IOException
 import org.koitharu.kotatsu.R
-import org.koitharu.kotatsu.core.os.ShortcutsRepository
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.download.ui.service.DownloadService
 import org.koitharu.kotatsu.history.domain.HistoryRepository
@@ -22,14 +23,13 @@ import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.utils.SingleLiveEvent
 import org.koitharu.kotatsu.utils.ext.asLiveDataDistinct
 import org.koitharu.kotatsu.utils.ext.printStackTraceDebug
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable
 import org.koitharu.kotatsu.utils.progress.Progress
-import java.io.IOException
 
 class LocalListViewModel(
 	private val repository: LocalMangaRepository,
 	private val historyRepository: HistoryRepository,
 	settings: AppSettings,
-	private val shortcutsRepository: ShortcutsRepository,
 ) : MangaListViewModel(settings) {
 
 	val onMangaRemoved = SingleLiveEvent<Unit>()
@@ -42,7 +42,7 @@ class LocalListViewModel(
 	override val content = combine(
 		mangaList,
 		createListModeFlow(),
-		listError
+		listError,
 	) { list, mode, error ->
 		when {
 			error != null -> listOf(error.toErrorState(canRetry = true))
@@ -53,8 +53,9 @@ class LocalListViewModel(
 					textPrimary = R.string.text_local_holder_primary,
 					textSecondary = R.string.text_local_holder_secondary,
 					actionStringRes = R.string._import,
-				)
+				),
 			)
+
 			else -> ArrayList<ListModel>(list.size + 1).apply {
 				add(headerModel)
 				list.toUi(this, mode)
@@ -62,7 +63,7 @@ class LocalListViewModel(
 		}
 	}.asLiveDataDistinct(
 		viewModelScope.coroutineContext + Dispatchers.Default,
-		listOf(LoadingState)
+		listOf(LoadingState),
 	)
 
 	init {
@@ -99,7 +100,7 @@ class LocalListViewModel(
 				for (manga in itemsToRemove) {
 					val original = repository.getRemoteManga(manga)
 					repository.delete(manga) || throw IOException("Unable to delete file")
-					runCatching {
+					runCatchingCancellable {
 						historyRepository.deleteOrSwap(manga, original)
 					}
 					mangaList.update { list ->
@@ -107,7 +108,6 @@ class LocalListViewModel(
 					}
 				}
 			}
-			shortcutsRepository.updateShortcuts()
 			onMangaRemoved.call(Unit)
 		}
 	}
@@ -116,6 +116,8 @@ class LocalListViewModel(
 		try {
 			listError.value = null
 			mangaList.value = repository.getList(0, null, null)
+		} catch (e: CancellationException) {
+			throw e
 		} catch (e: Throwable) {
 			listError.value = e
 		}
@@ -124,7 +126,7 @@ class LocalListViewModel(
 	private fun cleanup() {
 		if (!DownloadService.isRunning) {
 			viewModelScope.launch {
-				runCatching {
+				runCatchingCancellable {
 					repository.cleanup()
 				}.onFailure { error ->
 					error.printStackTraceDebug()

app/src/main/java/org/koitharu/kotatsu/main/MainModule.kt

@@ -1,19 +1,29 @@
 package org.koitharu.kotatsu.main
 
+import android.app.Application
+import android.os.Build
+import androidx.room.InvalidationTracker
 import org.koin.android.ext.koin.androidContext
 import org.koin.androidx.viewmodel.dsl.viewModel
+import org.koin.dsl.bind
 import org.koin.dsl.module
 import org.koitharu.kotatsu.base.ui.util.ActivityRecreationHandle
-import org.koitharu.kotatsu.core.os.ShortcutsRepository
+import org.koitharu.kotatsu.core.os.ShortcutsUpdater
 import org.koitharu.kotatsu.main.ui.MainViewModel
 import org.koitharu.kotatsu.main.ui.protect.AppProtectHelper
 import org.koitharu.kotatsu.main.ui.protect.ProtectViewModel
 
 val mainModule
 	get() = module {
-		single { AppProtectHelper(get()) }
-		single { ActivityRecreationHandle() }
-		factory { ShortcutsRepository(androidContext(), get(), get(), get()) }
+		single { AppProtectHelper(get()) } bind Application.ActivityLifecycleCallbacks::class
+		single { ActivityRecreationHandle() } bind Application.ActivityLifecycleCallbacks::class
+
+		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N_MR1) {
+			single { ShortcutsUpdater(androidContext(), get(), get(), get()) } bind InvalidationTracker.Observer::class
+		} else {
+			factory { ShortcutsUpdater(androidContext(), get(), get(), get()) }
+		}
+
 		viewModel { MainViewModel(get(), get()) }
 		viewModel { ProtectViewModel(get(), get()) }
 	}

app/src/main/java/org/koitharu/kotatsu/main/ui/MainActivity.kt

@@ -12,19 +12,24 @@ import androidx.appcompat.view.ActionMode
 import androidx.core.app.ActivityOptionsCompat
 import androidx.core.content.ContextCompat
 import androidx.core.graphics.Insets
-import androidx.core.view.*
+import androidx.core.view.ViewCompat
+import androidx.core.view.isVisible
+import androidx.core.view.updateLayoutParams
+import androidx.core.view.updatePadding
 import androidx.drawerlayout.widget.DrawerLayout
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.FragmentTransaction
 import androidx.fragment.app.commit
 import androidx.lifecycle.lifecycleScope
 import androidx.transition.TransitionManager
+import com.google.android.material.R as materialR
 import com.google.android.material.appbar.AppBarLayout
 import com.google.android.material.appbar.AppBarLayout.LayoutParams.*
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import com.google.android.material.navigation.NavigationView
 import com.google.android.material.snackbar.Snackbar
 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import org.koin.android.ext.android.get
 import org.koin.androidx.viewmodel.ext.android.viewModel
@@ -59,7 +64,6 @@ import org.koitharu.kotatsu.tracker.ui.FeedFragment
 import org.koitharu.kotatsu.tracker.work.TrackWorker
 import org.koitharu.kotatsu.utils.VoiceInputContract
 import org.koitharu.kotatsu.utils.ext.*
-import com.google.android.material.R as materialR
 
 private const val TAG_PRIMARY = "primary"
 private const val TAG_SEARCH = "search"
@@ -94,10 +98,10 @@ class MainActivity :
 				it,
 				binding.toolbar,
 				R.string.open_menu,
-				R.string.close_menu
+				R.string.close_menu,
 			).apply {
 				setHomeAsUpIndicator(
-					ContextCompat.getDrawable(this@MainActivity, materialR.drawable.abc_ic_ab_back_material)
+					ContextCompat.getDrawable(this@MainActivity, materialR.drawable.abc_ic_ab_back_material),
 				)
 				setToolbarNavigationClickListener {
 					binding.searchView.hideKeyboard()
@@ -429,7 +433,12 @@ class MainActivity :
 	}
 
 	private fun onFirstStart() {
-		lifecycleScope.launchWhenResumed {
+		lifecycleScope.launch(Dispatchers.Main) { // not a default `Main.immediate` dispatcher
+			val settings = get<AppSettings>()
+			when {
+				!settings.isSourcesSelected -> OnboardDialogFragment.showWelcome(supportFragmentManager)
+				settings.newSources.isNotEmpty() -> NewSourcesDialogFragment.show(supportFragmentManager)
+			}
 			val isUpdateSupported = withContext(Dispatchers.Default) {
 				TrackWorker.setup(applicationContext)
 				SuggestionsWorker.setup(applicationContext)
@@ -438,11 +447,6 @@ class MainActivity :
 			if (isUpdateSupported) {
 				AppUpdateChecker(this@MainActivity).checkIfNeeded()
 			}
-			val settings = get<AppSettings>()
-			when {
-				!settings.isSourcesSelected -> OnboardDialogFragment.showWelcome(supportFragmentManager)
-				settings.newSources.isNotEmpty() -> NewSourcesDialogFragment.show(supportFragmentManager)
-			}
 		}
 	}
 
@@ -469,7 +473,7 @@ class MainActivity :
 		val drawer = drawer ?: return
 		val isLocked = actionModeDelegate.isActionModeStarted || isSearchOpened
 		drawer.setDrawerLockMode(
-			if (isLocked) DrawerLayout.LOCK_MODE_LOCKED_CLOSED else DrawerLayout.LOCK_MODE_UNLOCKED
+			if (isLocked) DrawerLayout.LOCK_MODE_LOCKED_CLOSED else DrawerLayout.LOCK_MODE_UNLOCKED,
 		)
 		drawerToggle?.isDrawerIndicatorEnabled = !isLocked
 	}

app/src/main/java/org/koitharu/kotatsu/main/ui/protect/AppProtectHelper.kt

@@ -4,6 +4,7 @@ import android.app.Activity
 import android.app.Application
 import android.content.Intent
 import android.os.Bundle
+import org.acra.dialog.CrashReportDialog
 import org.koitharu.kotatsu.core.prefs.AppSettings
 
 class AppProtectHelper(private val settings: AppSettings) : Application.ActivityLifecycleCallbacks {
@@ -11,7 +12,7 @@ class AppProtectHelper(private val settings: AppSettings) : Application.Activity
 	private var isUnlocked = settings.appPassword.isNullOrEmpty()
 
 	override fun onActivityCreated(activity: Activity, savedInstanceState: Bundle?) {
-		if (activity !is ProtectActivity && !isUnlocked) {
+		if (!isUnlocked && activity !is ProtectActivity && activity !is CrashReportDialog) {
 			val sourceIntent = Intent(activity, activity.javaClass)
 			activity.intent?.let {
 				sourceIntent.putExtras(it)

app/src/main/java/org/koitharu/kotatsu/main/ui/protect/ProtectActivity.kt

@@ -46,7 +46,10 @@ class ProtectActivity :
 			startActivity(intent)
 			finishAfterTransition()
 		}
+	}
 
+	override fun onStart() {
+		super.onStart()
 		if (!useFingerprint()) {
 			binding.editPassword.requestFocus()
 		}

app/src/main/java/org/koitharu/kotatsu/reader/ReaderModule.kt

@@ -14,7 +14,7 @@ val readerModule
 		factory { MangaDataRepository(get()) }
 		single { PagesCache(get()) }
 
-		factory { PageSaveHelper(get(), androidContext()) }
+		factory { PageSaveHelper(androidContext()) }
 
 		viewModel { params ->
 			ReaderViewModel(
@@ -23,10 +23,9 @@ val readerModule
 				preselectedBranch = params[2],
 				dataRepository = get(),
 				historyRepository = get(),
-				shortcutsRepository = get(),
 				settings = get(),
 				pageSaveHelper = get(),
-				bookmarksRepository = get(),
+				bookmarksRepository = get()
 			)
 		}
 	}

app/src/main/java/org/koitharu/kotatsu/reader/domain/PageLoader.kt

@@ -6,9 +6,22 @@ import android.graphics.BitmapFactory
 import android.net.Uri
 import androidx.collection.LongSparseArray
 import androidx.collection.set
-import kotlinx.coroutines.*
+import java.io.File
+import java.util.LinkedList
+import java.util.concurrent.atomic.AtomicInteger
+import java.util.zip.ZipFile
+import kotlin.coroutines.AbstractCoroutineContextElement
+import kotlin.coroutines.CoroutineContext
+import kotlinx.coroutines.CompletableDeferred
+import kotlinx.coroutines.CoroutineExceptionHandler
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.SupervisorJob
+import kotlinx.coroutines.async
+import kotlinx.coroutines.cancel
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.runInterruptible
 import kotlinx.coroutines.sync.Mutex
 import kotlinx.coroutines.sync.withLock
 import okhttp3.OkHttpClient
@@ -26,18 +39,15 @@ import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.util.await
 import org.koitharu.kotatsu.reader.ui.pager.ReaderPage
 import org.koitharu.kotatsu.utils.ext.connectivityManager
+import org.koitharu.kotatsu.utils.ext.printStackTraceDebug
 import org.koitharu.kotatsu.utils.progress.ProgressDeferred
-import java.io.File
-import java.util.*
-import java.util.concurrent.atomic.AtomicInteger
-import java.util.zip.ZipFile
 
 private const val PROGRESS_UNDEFINED = -1f
 private const val PREFETCH_LIMIT_DEFAULT = 10
 
 class PageLoader : KoinComponent, Closeable {
 
-	val loaderScope = CoroutineScope(SupervisorJob() + Dispatchers.Default)
+	val loaderScope = CoroutineScope(SupervisorJob() + InternalErrorHandler() + Dispatchers.Default)
 
 	private val okHttp = get<OkHttpClient>()
 	private val cache = get<PagesCache>()
@@ -194,4 +204,13 @@ class PageLoader : KoinComponent, Closeable {
 		val deferred = CompletableDeferred(file)
 		return ProgressDeferred(deferred, emptyProgressFlow)
 	}
+
+	private class InternalErrorHandler :
+		AbstractCoroutineContextElement(CoroutineExceptionHandler),
+		CoroutineExceptionHandler {
+
+		override fun handleException(context: CoroutineContext, exception: Throwable) {
+			exception.printStackTraceDebug()
+		}
+	}
 }

app/src/main/java/org/koitharu/kotatsu/reader/ui/PageSaveHelper.kt

@@ -4,6 +4,10 @@ import android.content.Context
 import android.net.Uri
 import android.webkit.MimeTypeMap
 import androidx.activity.result.ActivityResultLauncher
+import androidx.core.net.toUri
+import java.io.File
+import kotlin.coroutines.Continuation
+import kotlin.coroutines.resume
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.runInterruptible
 import kotlinx.coroutines.suspendCancellableCoroutine
@@ -11,19 +15,14 @@ import kotlinx.coroutines.withContext
 import okhttp3.HttpUrl.Companion.toHttpUrl
 import okio.IOException
 import org.koitharu.kotatsu.base.domain.MangaUtils
-import org.koitharu.kotatsu.local.data.PagesCache
 import org.koitharu.kotatsu.parsers.model.MangaPage
 import org.koitharu.kotatsu.parsers.util.toFileNameSafe
 import org.koitharu.kotatsu.reader.domain.PageLoader
-import java.io.File
-import kotlin.coroutines.Continuation
-import kotlin.coroutines.resume
 
 private const val MAX_FILENAME_LENGTH = 10
 private const val EXTENSION_FALLBACK = "png"
 
 class PageSaveHelper(
-	private val cache: PagesCache,
 	context: Context,
 ) {
 
@@ -61,7 +60,11 @@ class PageSaveHelper(
 	} != null
 
 	private suspend fun getProposedFileName(url: String, file: File): String {
-		var name = url.toHttpUrl().pathSegments.last()
+		var name = if (url.startsWith("cbz://")) {
+			requireNotNull(url.toUri().fragment)
+		} else {
+			url.toHttpUrl().pathSegments.last()
+		}
 		var extension = name.substringAfterLast('.', "")
 		name = name.substringBeforeLast('.')
 		if (extension.length !in 2..4) {

app/src/main/java/org/koitharu/kotatsu/reader/ui/ReaderActivity.kt

@@ -19,6 +19,7 @@ import androidx.transition.TransitionManager
 import androidx.transition.TransitionSet
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import com.google.android.material.snackbar.Snackbar
+import java.util.concurrent.TimeUnit
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.onEach
@@ -47,7 +48,6 @@ import org.koitharu.kotatsu.utils.GridTouchHelper
 import org.koitharu.kotatsu.utils.ScreenOrientationHelper
 import org.koitharu.kotatsu.utils.ShareHelper
 import org.koitharu.kotatsu.utils.ext.*
-import java.util.concurrent.TimeUnit
 
 class ReaderActivity :
 	BaseFullscreenActivity<ActivityReaderBinding>(),
@@ -67,6 +67,9 @@ class ReaderActivity :
 		)
 	}
 
+	override val readerMode: ReaderMode?
+		get() = readerManager.currentMode
+
 	private lateinit var touchHelper: GridTouchHelper
 	private lateinit var orientationHelper: ScreenOrientationHelper
 	private lateinit var controlDelegate: ReaderControlDelegate
@@ -82,7 +85,7 @@ class ReaderActivity :
 		supportActionBar?.setDisplayHomeAsUpEnabled(true)
 		touchHelper = GridTouchHelper(this, this)
 		orientationHelper = ScreenOrientationHelper(this)
-		controlDelegate = ReaderControlDelegate(lifecycleScope, get(), this)
+		controlDelegate = ReaderControlDelegate(get(), this, this)
 		binding.toolbarBottom.inflateMenu(R.menu.opt_reader_bottom)
 		binding.toolbarBottom.setOnMenuItemClickListener(::onOptionsItemSelected)
 		insetsDelegate.interceptingWindowInsetsListener = this
@@ -146,7 +149,7 @@ class ReaderActivity :
 				ChaptersBottomSheet.show(
 					supportFragmentManager,
 					viewModel.manga?.chapters.orEmpty(),
-					viewModel.getCurrentState()?.chapterId ?: 0L
+					viewModel.getCurrentState()?.chapterId ?: 0L,
 				)
 			}
 			R.id.action_screen_rotate -> {
@@ -166,10 +169,9 @@ class ReaderActivity :
 				}
 			}
 			R.id.action_save_page -> {
-				viewModel.getCurrentPage()?.also { page ->
-					viewModel.saveCurrentState(readerManager.currentReader?.getCurrentState())
-					viewModel.saveCurrentPage(page, savePageRequest)
-				} ?: return false
+				viewModel.saveCurrentState(readerManager.currentReader?.getCurrentState())
+				val page = viewModel.getCurrentPage() ?: return false
+				viewModel.saveCurrentPage(page, savePageRequest)
 			}
 			R.id.action_bookmark -> {
 				if (viewModel.isBookmarkAdded.value == true) {
@@ -211,7 +213,7 @@ class ReaderActivity :
 		val resolveTextId = ExceptionResolver.getResolveStringId(e)
 		if (resolveTextId != 0) {
 			dialog.setPositiveButton(resolveTextId, listener)
-		} else {
+		} else if (e.isReportable()) {
 			dialog.setPositiveButton(R.string.report, listener)
 		}
 		dialog.show()
@@ -318,12 +320,12 @@ class ReaderActivity :
 		binding.appbarTop.updatePadding(
 			top = systemBars.top,
 			right = systemBars.right,
-			left = systemBars.left
+			left = systemBars.left,
 		)
 		binding.appbarBottom?.updatePadding(
 			bottom = systemBars.bottom,
 			right = systemBars.right,
-			left = systemBars.left
+			left = systemBars.left,
 		)
 		return WindowInsetsCompat.Builder(insets)
 			.setInsets(WindowInsetsCompat.Type.systemBars(), Insets.NONE)
@@ -346,14 +348,14 @@ class ReaderActivity :
 		menuItem.setIcon(if (isAdded) R.drawable.ic_bookmark_added else R.drawable.ic_bookmark)
 	}
 
-	private fun onUiStateChanged(uiState: ReaderUiState, previous: ReaderUiState?) {
-		title = uiState.chapterName ?: uiState.mangaName ?: getString(R.string.loading_)
-		supportActionBar?.subtitle = if (uiState.chapterNumber in 1..uiState.chaptersTotal) {
+	private fun onUiStateChanged(uiState: ReaderUiState?, previous: ReaderUiState?) {
+		title = uiState?.chapterName ?: uiState?.mangaName ?: getString(R.string.loading_)
+		supportActionBar?.subtitle = if (uiState != null && uiState.chapterNumber in 1..uiState.chaptersTotal) {
 			getString(R.string.chapter_d_of_d, uiState.chapterNumber, uiState.chaptersTotal)
 		} else {
 			null
 		}
-		if (previous?.chapterName != null && uiState.chapterName != previous.chapterName) {
+		if (uiState != null && previous?.chapterName != null && uiState.chapterName != previous.chapterName) {
 			if (!uiState.chapterName.isNullOrEmpty()) {
 				binding.toastView.showTemporary(uiState.chapterName, TOAST_DURATION)
 			}

app/src/main/java/org/koitharu/kotatsu/reader/ui/ReaderControlDelegate.kt

@@ -1,33 +1,39 @@
 package org.koitharu.kotatsu.reader.ui
 
+import android.content.SharedPreferences
 import android.view.KeyEvent
 import android.view.SoundEffectConstants
 import android.view.View
-import androidx.lifecycle.LifecycleCoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.flow.flowOn
-import kotlinx.coroutines.flow.launchIn
-import kotlinx.coroutines.flow.onEach
+import androidx.lifecycle.DefaultLifecycleObserver
+import androidx.lifecycle.LifecycleOwner
 import org.koitharu.kotatsu.core.prefs.AppSettings
-import org.koitharu.kotatsu.core.prefs.observeAsFlow
+import org.koitharu.kotatsu.core.prefs.ReaderMode
 import org.koitharu.kotatsu.utils.GridTouchHelper
 
 class ReaderControlDelegate(
-	scope: LifecycleCoroutineScope,
-	settings: AppSettings,
-	private val listener: OnInteractionListener
-) {
+	private val settings: AppSettings,
+	private val listener: OnInteractionListener,
+	owner: LifecycleOwner,
+) : DefaultLifecycleObserver, SharedPreferences.OnSharedPreferenceChangeListener {
 
 	private var isTapSwitchEnabled: Boolean = true
 	private var isVolumeKeysSwitchEnabled: Boolean = false
+	private var isReaderTapsAdaptive: Boolean = true
 
 	init {
-		settings.observeAsFlow(AppSettings.KEY_READER_SWITCHERS) { readerPageSwitch }
-			.flowOn(Dispatchers.Default)
-			.onEach {
-				isTapSwitchEnabled = AppSettings.PAGE_SWITCH_TAPS in it
-				isVolumeKeysSwitchEnabled = AppSettings.PAGE_SWITCH_VOLUME_KEYS in it
-			}.launchIn(scope)
+		owner.lifecycle.addObserver(this)
+		settings.subscribe(this)
+		updateSettings()
+	}
+
+	override fun onDestroy(owner: LifecycleOwner) {
+		settings.unsubscribe(this)
+		owner.lifecycle.removeObserver(this)
+		super.onDestroy(owner)
+	}
+
+	override fun onSharedPreferenceChanged(sharedPreferences: SharedPreferences?, key: String?) {
+		updateSettings()
 	}
 
 	fun onGridTouch(area: Int, view: View) {
@@ -41,7 +47,7 @@ class ReaderControlDelegate(
 				view.playSoundEffect(SoundEffectConstants.NAVIGATION_UP)
 			}
 			GridTouchHelper.AREA_LEFT -> if (isTapSwitchEnabled) {
-				listener.switchPageBy(-1)
+				listener.switchPageBy(if (isReaderTapsReversed()) 1 else -1)
 				view.playSoundEffect(SoundEffectConstants.NAVIGATION_LEFT)
 			}
 			GridTouchHelper.AREA_BOTTOM -> if (isTapSwitchEnabled) {
@@ -49,7 +55,7 @@ class ReaderControlDelegate(
 				view.playSoundEffect(SoundEffectConstants.NAVIGATION_DOWN)
 			}
 			GridTouchHelper.AREA_RIGHT -> if (isTapSwitchEnabled) {
-				listener.switchPageBy(1)
+				listener.switchPageBy(if (isReaderTapsReversed()) -1 else 1)
 				view.playSoundEffect(SoundEffectConstants.NAVIGATION_RIGHT)
 			}
 		}
@@ -72,17 +78,25 @@ class ReaderControlDelegate(
 		KeyEvent.KEYCODE_PAGE_DOWN,
 		KeyEvent.KEYCODE_SYSTEM_NAVIGATION_DOWN,
 		KeyEvent.KEYCODE_DPAD_DOWN,
-		KeyEvent.KEYCODE_DPAD_RIGHT -> {
+		-> {
 			listener.switchPageBy(1)
 			true
 		}
+		KeyEvent.KEYCODE_DPAD_RIGHT -> {
+			listener.switchPageBy(if (isReaderTapsReversed()) -1 else 1)
+			true
+		}
 		KeyEvent.KEYCODE_PAGE_UP,
 		KeyEvent.KEYCODE_SYSTEM_NAVIGATION_UP,
 		KeyEvent.KEYCODE_DPAD_UP,
-		KeyEvent.KEYCODE_DPAD_LEFT -> {
+		-> {
 			listener.switchPageBy(-1)
 			true
 		}
+		KeyEvent.KEYCODE_DPAD_LEFT -> {
+			listener.switchPageBy(if (isReaderTapsReversed()) 1 else -1)
+			true
+		}
 		KeyEvent.KEYCODE_DPAD_CENTER -> {
 			listener.toggleUiVisibility()
 			true
@@ -97,8 +111,21 @@ class ReaderControlDelegate(
 			)
 	}
 
+	private fun updateSettings() {
+		val switch = settings.readerPageSwitch
+		isTapSwitchEnabled = AppSettings.PAGE_SWITCH_TAPS in switch
+		isVolumeKeysSwitchEnabled = AppSettings.PAGE_SWITCH_VOLUME_KEYS in switch
+		isReaderTapsAdaptive = settings.isReaderTapsAdaptive
+	}
+
+	private fun isReaderTapsReversed(): Boolean {
+		return isReaderTapsAdaptive && listener.readerMode == ReaderMode.REVERSED
+	}
+
 	interface OnInteractionListener {
 
+		val readerMode: ReaderMode?
+
 		fun switchPageBy(delta: Int)
 
 		fun toggleUiVisibility()

app/src/main/java/org/koitharu/kotatsu/reader/ui/ReaderViewModel.kt

@@ -6,9 +6,9 @@ import androidx.activity.result.ActivityResultLauncher
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.viewModelScope
+import java.util.Date
 import kotlinx.coroutines.*
 import kotlinx.coroutines.flow.*
-import org.acra.ACRA
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.base.domain.MangaDataRepository
 import org.koitharu.kotatsu.base.domain.MangaIntent
@@ -16,12 +16,11 @@ import org.koitharu.kotatsu.base.domain.MangaUtils
 import org.koitharu.kotatsu.base.ui.BaseViewModel
 import org.koitharu.kotatsu.bookmarks.domain.Bookmark
 import org.koitharu.kotatsu.bookmarks.domain.BookmarksRepository
-import org.koitharu.kotatsu.core.exceptions.MangaNotFoundException
-import org.koitharu.kotatsu.core.os.ShortcutsRepository
 import org.koitharu.kotatsu.core.parser.MangaRepository
 import org.koitharu.kotatsu.core.prefs.*
 import org.koitharu.kotatsu.history.domain.HistoryRepository
 import org.koitharu.kotatsu.history.domain.PROGRESS_NONE
+import org.koitharu.kotatsu.parsers.exception.NotFoundException
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaChapter
 import org.koitharu.kotatsu.parsers.model.MangaPage
@@ -33,8 +32,7 @@ import org.koitharu.kotatsu.utils.SingleLiveEvent
 import org.koitharu.kotatsu.utils.ext.asLiveDataDistinct
 import org.koitharu.kotatsu.utils.ext.printStackTraceDebug
 import org.koitharu.kotatsu.utils.ext.processLifecycleScope
-import org.koitharu.kotatsu.utils.ext.setCurrentManga
-import java.util.*
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable
 
 private const val BOUNDS_PAGE_OFFSET = 2
 private const val PAGES_TRIM_THRESHOLD = 120
@@ -46,7 +44,6 @@ class ReaderViewModel(
 	private val preselectedBranch: String?,
 	private val dataRepository: MangaDataRepository,
 	private val historyRepository: HistoryRepository,
-	private val shortcutsRepository: ShortcutsRepository,
 	private val bookmarksRepository: BookmarksRepository,
 	private val settings: AppSettings,
 	private val pageSaveHelper: PageSaveHelper,
@@ -73,9 +70,9 @@ class ReaderViewModel(
 			mangaName = manga?.title,
 			chapterName = chapter?.name,
 			chapterNumber = chapter?.number ?: 0,
-			chaptersTotal = chapters.size()
+			chaptersTotal = chapters.size(),
 		)
-	}.asLiveDataDistinct(viewModelScope.coroutineContext + Dispatchers.Default)
+	}.asLiveDataDistinct(viewModelScope.coroutineContext + Dispatchers.Default, null)
 
 	val content = MutableLiveData(ReaderContent(emptyList(), null))
 	val manga: Manga?
@@ -84,7 +81,7 @@ class ReaderViewModel(
 	val readerAnimation = settings.observeAsLiveData(
 		context = viewModelScope.coroutineContext + Dispatchers.Default,
 		key = AppSettings.KEY_READER_ANIMATION,
-		valueProducer = { readerAnimation }
+		valueProducer = { readerAnimation },
 	)
 
 	val isScreenshotsBlockEnabled = combine(
@@ -93,7 +90,7 @@ class ReaderViewModel(
 	) { manga, policy ->
 		policy == ScreenshotsPolicy.BLOCK_ALL ||
 			(policy == ScreenshotsPolicy.BLOCK_NSFW && manga != null && manga.isNsfw)
-	}.asLiveDataDistinct(viewModelScope.coroutineContext + Dispatchers.Default)
+	}.asLiveDataDistinct(viewModelScope.coroutineContext + Dispatchers.Default, false)
 
 	val onZoomChanged = SingleLiveEvent<Unit>()
 
@@ -105,7 +102,7 @@ class ReaderViewModel(
 			bookmarksRepository.observeBookmark(manga, state.chapterId, state.page)
 				.map { it != null }
 		}
-	}.asLiveDataDistinct(viewModelScope.coroutineContext + Dispatchers.Default)
+	}.asLiveDataDistinct(viewModelScope.coroutineContext + Dispatchers.Default, false)
 
 	init {
 		loadImpl()
@@ -127,12 +124,12 @@ class ReaderViewModel(
 			val manga = checkNotNull(mangaData.value)
 			dataRepository.savePreferences(
 				manga = manga,
-				mode = newMode
+				mode = newMode,
 			)
 			readerMode.value = newMode
 			content.value?.run {
 				content.value = copy(
-					state = getCurrentState()
+					state = getCurrentState(),
 				)
 			}
 		}
@@ -263,8 +260,7 @@ class ReaderViewModel(
 
 	private fun loadImpl() {
 		loadingJob = launchLoadingJob(Dispatchers.Default) {
-			var manga = dataRepository.resolveIntent(intent) ?: throw MangaNotFoundException("Cannot find manga")
-			ACRA.setCurrentManga(manga)
+			var manga = dataRepository.resolveIntent(intent) ?: throw NotFoundException("Cannot find manga", "")
 			mangaData.value = manga
 			val repo = MangaRepository(manga.source)
 			manga = repo.getDetails(manga)
@@ -289,7 +285,6 @@ class ReaderViewModel(
 			currentState.value?.let {
 				val percent = computePercent(it.chapterId, it.page)
 				historyRepository.addOrUpdate(manga, it.chapterId, it.page, it.scroll, percent)
-				shortcutsRepository.updateShortcuts()
 			}
 
 			content.postValue(ReaderContent(pages, currentState.value))
@@ -364,7 +359,7 @@ class ReaderViewModel(
 			?: manga.chapters?.randomOrNull()
 			?: error("There are no chapters in this manga")
 		val pages = repo.getPages(chapter)
-		return runCatching {
+		return runCatchingCancellable {
 			val isWebtoon = MangaUtils.determineMangaIsWebtoon(pages)
 			if (isWebtoon) ReaderMode.WEBTOON else defaultMode
 		}.onSuccess {
@@ -395,7 +390,7 @@ class ReaderViewModel(
  */
 private fun HistoryRepository.saveStateAsync(manga: Manga, state: ReaderState, percent: Float): Job {
 	return processLifecycleScope.launch(Dispatchers.Default) {
-		runCatching {
+		runCatchingCancellable {
 			addOrUpdate(
 				manga = manga,
 				chapterId = state.chapterId,

app/src/main/java/org/koitharu/kotatsu/reader/ui/pager/BasePageHolder.kt

@@ -13,7 +13,7 @@ abstract class BasePageHolder<B : ViewBinding>(
 	protected val binding: B,
 	loader: PageLoader,
 	settings: AppSettings,
-	exceptionResolver: ExceptionResolver
+	exceptionResolver: ExceptionResolver,
 ) : RecyclerView.ViewHolder(binding.root), PageHolderDelegate.Callback {
 
 	@Suppress("LeakingThis")
@@ -37,6 +37,14 @@ abstract class BasePageHolder<B : ViewBinding>(
 
 	protected abstract fun onBind(data: ReaderPage)
 
+	@CallSuper
+	open fun onAttachedToWindow() {
+	}
+
+	@CallSuper
+	open fun onDetachedFromWindow() {
+	}
+
 	@CallSuper
 	open fun onRecycled() {
 		delegate.onRecycle()

app/src/main/java/org/koitharu/kotatsu/reader/ui/pager/BaseReaderAdapter.kt

@@ -4,12 +4,12 @@ import android.view.ViewGroup
 import androidx.recyclerview.widget.AsyncListDiffer
 import androidx.recyclerview.widget.DiffUtil
 import androidx.recyclerview.widget.RecyclerView
+import kotlin.coroutines.resume
+import kotlin.coroutines.suspendCoroutine
 import org.koitharu.kotatsu.core.exceptions.resolve.ExceptionResolver
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.reader.domain.PageLoader
 import org.koitharu.kotatsu.utils.ext.resetTransformations
-import kotlin.coroutines.resume
-import kotlin.coroutines.suspendCoroutine
 
 @Suppress("LeakingThis")
 abstract class BaseReaderAdapter<H : BasePageHolder<*>>(
@@ -35,6 +35,16 @@ abstract class BaseReaderAdapter<H : BasePageHolder<*>>(
 		super.onViewRecycled(holder)
 	}
 
+	override fun onViewAttachedToWindow(holder: H) {
+		super.onViewAttachedToWindow(holder)
+		holder.onAttachedToWindow()
+	}
+
+	override fun onViewDetachedFromWindow(holder: H) {
+		super.onViewDetachedFromWindow(holder)
+		holder.onDetachedFromWindow()
+	}
+
 	open fun getItem(position: Int): ReaderPage = differ.currentList[position]
 
 	open fun getItemOrNull(position: Int) = differ.currentList.getOrNull(position)
@@ -45,7 +55,7 @@ abstract class BaseReaderAdapter<H : BasePageHolder<*>>(
 
 	final override fun onCreateViewHolder(
 		parent: ViewGroup,
-		viewType: Int
+		viewType: Int,
 	): H = onCreateViewHolder(parent, loader, settings, exceptionResolver)
 
 	suspend fun setItems(items: List<ReaderPage>) = suspendCoroutine<Unit> { cont ->
@@ -58,7 +68,7 @@ abstract class BaseReaderAdapter<H : BasePageHolder<*>>(
 		parent: ViewGroup,
 		loader: PageLoader,
 		settings: AppSettings,
-		exceptionResolver: ExceptionResolver
+		exceptionResolver: ExceptionResolver,
 	): H
 
 	private class DiffCallback : DiffUtil.ItemCallback<ReaderPage>() {
@@ -70,6 +80,5 @@ abstract class BaseReaderAdapter<H : BasePageHolder<*>>(
 		override fun areContentsTheSame(oldItem: ReaderPage, newItem: ReaderPage): Boolean {
 			return oldItem == newItem
 		}
-
 	}
 }