Avoid replacing online manga wthin local in database

Currently translated at 100.0% (524 of 524 strings)

Co-authored-by: Abay Emes <abayemes@gmail.com>
Translate-URL: https://hosted.weblate.org/projects/kotatsu/strings/kk/
Translation: Kotatsu/Strings

app/build.gradle

@@ -16,8 +16,8 @@ android {
 		applicationId 'org.koitharu.kotatsu'
 		minSdk = 21
 		targetSdk = 34
-		versionCode = 590
-		versionName = '6.2.3'
+		versionCode = 597
+		versionName = '6.3.0'
 		generatedDensities = []
 		testInstrumentationRunner "org.koitharu.kotatsu.HiltTestRunner"
 		ksp {
@@ -33,7 +33,6 @@ android {
 			applicationIdSuffix = '.debug'
 		}
 		release {
-			multiDexEnabled false
 			minifyEnabled true
 			shrinkResources true
 			proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
@@ -48,11 +47,12 @@ android {
 		main.java.srcDirs += 'src/main/kotlin/'
 	}
 	compileOptions {
-		sourceCompatibility JavaVersion.VERSION_17
-		targetCompatibility JavaVersion.VERSION_17
+		coreLibraryDesugaringEnabled true
+		sourceCompatibility JavaVersion.VERSION_1_8
+		targetCompatibility JavaVersion.VERSION_1_8
 	}
 	kotlinOptions {
-		jvmTarget = JavaVersion.VERSION_17.toString()
+		jvmTarget = JavaVersion.VERSION_1_8.toString()
 		freeCompilerArgs += [
 			'-opt-in=kotlin.ExperimentalStdlibApi',
 			'-opt-in=kotlinx.coroutines.ExperimentalCoroutinesApi',
@@ -82,17 +82,18 @@ afterEvaluate {
 }
 dependencies {
 	//noinspection GradleDependency
-	implementation('com.github.KotatsuApp:kotatsu-parsers:6bf0ae92e4') {
+	implementation('com.github.KotatsuApp:kotatsu-parsers:41eea1c420') {
 		exclude group: 'org.json', module: 'json'
 	}
 
-	implementation 'org.jetbrains.kotlin:kotlin-stdlib:1.9.10'
+	coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:2.0.4'
+	implementation 'org.jetbrains.kotlin:kotlin-stdlib:1.9.20'
 	implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.7.3'
 
 	implementation 'androidx.appcompat:appcompat:1.6.1'
 	implementation 'androidx.core:core-ktx:1.12.0'
-	implementation 'androidx.activity:activity-ktx:1.8.0'
-	implementation 'androidx.fragment:fragment-ktx:1.6.1'
+	implementation 'androidx.activity:activity-ktx:1.8.1'
+	implementation 'androidx.fragment:fragment-ktx:1.6.2'
 	implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.6.2'
 	implementation 'androidx.lifecycle:lifecycle-livedata-ktx:2.6.2'
 	implementation 'androidx.lifecycle:lifecycle-service:2.6.2'
@@ -119,8 +120,8 @@ dependencies {
 	implementation 'androidx.room:room-ktx:2.6.0'
 	ksp 'androidx.room:room-compiler:2.6.0'
 
-	implementation 'com.squareup.okhttp3:okhttp:4.11.0'
-	implementation 'com.squareup.okhttp3:okhttp-dnsoverhttps:4.11.0'
+	implementation 'com.squareup.okhttp3:okhttp:4.12.0'
+	implementation 'com.squareup.okhttp3:okhttp-dnsoverhttps:4.12.0'
 	implementation 'com.squareup.okio:okio:3.6.0'
 
 	implementation 'com.hannesdorfmann:adapterdelegates4-kotlin-dsl:4.3.2'
@@ -128,22 +129,22 @@ dependencies {
 
 	implementation 'com.google.dagger:hilt-android:2.48.1'
 	kapt 'com.google.dagger:hilt-compiler:2.48.1'
-	implementation 'androidx.hilt:hilt-work:1.0.0'
-	kapt 'androidx.hilt:hilt-compiler:1.0.0'
+	implementation 'androidx.hilt:hilt-work:1.1.0'
+	kapt 'androidx.hilt:hilt-compiler:1.1.0'
 
-	implementation 'io.coil-kt:coil-base:2.4.0'
-	implementation 'io.coil-kt:coil-svg:2.4.0'
+	implementation 'io.coil-kt:coil-base:2.5.0'
+	implementation 'io.coil-kt:coil-svg:2.5.0'
 	implementation 'com.github.KotatsuApp:subsampling-scale-image-view:cf089a264d'
 	implementation 'com.github.solkin:disk-lru-cache:1.4'
 	implementation 'io.noties.markwon:core:4.6.2'
 
-	implementation 'ch.acra:acra-http:5.11.2'
-	implementation 'ch.acra:acra-dialog:5.11.2'
+	implementation 'ch.acra:acra-http:5.11.3'
+	implementation 'ch.acra:acra-dialog:5.11.3'
 
 	debugImplementation 'com.squareup.leakcanary:leakcanary-android:2.12'
 
 	testImplementation 'junit:junit:4.13.2'
-	testImplementation 'org.json:json:20230618'
+	testImplementation 'org.json:json:20231013'
 	testImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:1.7.3'
 
 	androidTestImplementation 'androidx.test:runner:1.5.2'

app/proguard-rules.pro

@@ -18,3 +18,6 @@
 -keep class org.koitharu.kotatsu.core.exceptions.* { *; }
 -keep class org.koitharu.kotatsu.settings.NotificationSettingsLegacyFragment
 -keep class org.koitharu.kotatsu.core.prefs.ScreenshotsPolicy { *; }
+-keep class org.koitharu.kotatsu.settings.backup.PeriodicalBackupSettingsFragment { *; }
+-keep class org.jsoup.parser.Tag
+-keep class org.jsoup.internal.StringUtil

app/src/main/AndroidManifest.xml

@@ -221,6 +221,9 @@
 			</intent-filter>
 
 		</activity>
+		<activity
+			android:name="org.koitharu.kotatsu.settings.sources.catalog.SourcesCatalogActivity"
+			android:label="@string/sources_catalog" />
 
 		<service
 			android:name="androidx.work.impl.foreground.SystemForegroundService"

app/src/main/kotlin/org/koitharu/kotatsu/browser/cloudflare/CloudFlareActivity.kt

@@ -48,8 +48,8 @@ class CloudFlareActivity : BaseActivity<ActivityBrowserBinding>(), CloudFlareCal
 		if (!catchingWebViewUnavailability {
 				setContentView(
 					ActivityBrowserBinding.inflate(
-						layoutInflater
-					)
+						layoutInflater,
+					),
 				)
 			}) {
 			return
@@ -82,9 +82,11 @@ class CloudFlareActivity : BaseActivity<ActivityBrowserBinding>(), CloudFlareCal
 	}
 
 	override fun onDestroy() {
-		viewBinding.webView.run {
-			stopLoading()
-			destroy()
+		runCatching {
+			viewBinding.webView
+		}.onSuccess {
+			it.stopLoading()
+			it.destroy()
 		}
 		super.onDestroy()
 	}

app/src/main/kotlin/org/koitharu/kotatsu/core/backup/BackupZipOutput.kt

@@ -29,7 +29,7 @@ class BackupZipOutput(val file: File) : Closeable {
 	}
 }
 
-private const val DIR_BACKUPS = "backups"
+const val DIR_BACKUPS = "backups"
 
 suspend fun BackupZipOutput(context: Context): BackupZipOutput = runInterruptible(Dispatchers.IO) {
 	val dir = context.run {

app/src/main/kotlin/org/koitharu/kotatsu/core/db/dao/MangaSourcesDao.kt

@@ -4,10 +4,15 @@ import androidx.room.Dao
 import androidx.room.Insert
 import androidx.room.OnConflictStrategy
 import androidx.room.Query
+import androidx.room.RawQuery
 import androidx.room.Transaction
 import androidx.room.Upsert
+import androidx.sqlite.db.SimpleSQLiteQuery
+import androidx.sqlite.db.SupportSQLiteQuery
 import kotlinx.coroutines.flow.Flow
+import org.intellij.lang.annotations.Language
 import org.koitharu.kotatsu.core.db.entity.MangaSourceEntity
+import org.koitharu.kotatsu.explore.data.SourcesSortOrder
 
 @Dao
 abstract class MangaSourcesDao {
@@ -15,11 +20,11 @@ abstract class MangaSourcesDao {
 	@Query("SELECT * FROM sources ORDER BY sort_key")
 	abstract suspend fun findAll(): List<MangaSourceEntity>
 
-	@Query("SELECT * FROM sources WHERE enabled = 1 ORDER BY sort_key")
-	abstract suspend fun findAllEnabled(): List<MangaSourceEntity>
+	@Query("SELECT * FROM sources WHERE enabled = 0 ORDER BY sort_key")
+	abstract suspend fun findAllDisabled(): List<MangaSourceEntity>
 
-	@Query("SELECT * FROM sources WHERE enabled = 1 ORDER BY sort_key")
-	abstract fun observeEnabled(): Flow<List<MangaSourceEntity>>
+	@Query("SELECT * FROM sources WHERE enabled = 0")
+	abstract fun observeDisabled(): Flow<List<MangaSourceEntity>>
 
 	@Query("SELECT * FROM sources ORDER BY sort_key")
 	abstract fun observeAll(): Flow<List<MangaSourceEntity>>
@@ -40,6 +45,22 @@ abstract class MangaSourcesDao {
 	@Upsert
 	abstract suspend fun upsert(entry: MangaSourceEntity)
 
+	fun observeEnabled(order: SourcesSortOrder): Flow<List<MangaSourceEntity>> {
+		val orderBy = getOrderBy(order)
+
+		@Language("RoomSql")
+		val query = SimpleSQLiteQuery("SELECT * FROM sources WHERE enabled = 1 ORDER BY $orderBy")
+		return observeImpl(query)
+	}
+
+	suspend fun findAllEnabled(order: SourcesSortOrder): List<MangaSourceEntity> {
+		val orderBy = getOrderBy(order)
+
+		@Language("RoomSql")
+		val query = SimpleSQLiteQuery("SELECT * FROM sources WHERE enabled = 1 ORDER BY $orderBy")
+		return findAllImpl(query)
+	}
+
 	@Transaction
 	open suspend fun setEnabled(source: String, isEnabled: Boolean) {
 		if (updateIsEnabled(source, isEnabled) == 0) {
@@ -54,4 +75,16 @@ abstract class MangaSourcesDao {
 
 	@Query("UPDATE sources SET enabled = :isEnabled WHERE source = :source")
 	protected abstract suspend fun updateIsEnabled(source: String, isEnabled: Boolean): Int
+
+	@RawQuery(observedEntities = [MangaSourceEntity::class])
+	protected abstract fun observeImpl(query: SupportSQLiteQuery): Flow<List<MangaSourceEntity>>
+
+	@RawQuery
+	protected abstract suspend fun findAllImpl(query: SupportSQLiteQuery): List<MangaSourceEntity>
+
+	private fun getOrderBy(order: SourcesSortOrder) = when (order) {
+		SourcesSortOrder.ALPHABETIC -> "source ASC"
+		SourcesSortOrder.POPULARITY -> "(SELECT COUNT(*) FROM manga WHERE source = sources.source) DESC"
+		SourcesSortOrder.MANUAL -> "sort_key ASC"
+	}
 }

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

@@ -1,5 +1,8 @@
 package org.koitharu.kotatsu.core.model
 
+import android.content.Context
+import androidx.annotation.StringRes
+import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.parsers.model.ContentType
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.util.toTitleCase
@@ -18,3 +21,18 @@ fun MangaSource(name: String): MangaSource {
 }
 
 fun MangaSource.isNsfw() = contentType == ContentType.HENTAI
+
+@get:StringRes
+val ContentType.titleResId
+	get() = when (this) {
+		ContentType.MANGA -> R.string.content_type_manga
+		ContentType.HENTAI -> R.string.content_type_hentai
+		ContentType.COMICS -> R.string.content_type_comics
+		ContentType.OTHER -> R.string.content_type_other
+	}
+
+fun MangaSource.getSummary(context: Context): String {
+	val type = context.getString(contentType.titleResId)
+	val locale = getLocaleTitle() ?: context.getString(R.string.various_languages)
+	return context.getString(R.string.source_summary_pattern, type, locale)
+}

app/src/main/kotlin/org/koitharu/kotatsu/core/network/CloudFlareInterceptor.kt

@@ -14,8 +14,8 @@ class CloudFlareInterceptor : Interceptor {
 	override fun intercept(chain: Interceptor.Chain): Response {
 		val response = chain.proceed(chain.request())
 		if (response.code == HTTP_FORBIDDEN || response.code == HTTP_UNAVAILABLE) {
-			val content = response.body?.source()?.peek()?.use {
-				Jsoup.parse(it.inputStream(), Charsets.UTF_8.name(), response.request.url.toString())
+			val content = response.body?.let { response.peekBody(Long.MAX_VALUE) }?.byteStream()?.use {
+				Jsoup.parse(it, Charsets.UTF_8.name(), response.request.url.toString())
 			} ?: return response
 			if (content.getElementById("challenge-error-title") != null) {
 				val request = response.request

app/src/main/kotlin/org/koitharu/kotatsu/core/parser/MangaDataRepository.kt

@@ -11,6 +11,7 @@ import org.koitharu.kotatsu.core.db.entity.toEntities
 import org.koitharu.kotatsu.core.db.entity.toEntity
 import org.koitharu.kotatsu.core.db.entity.toManga
 import org.koitharu.kotatsu.core.db.entity.toMangaTags
+import org.koitharu.kotatsu.core.model.isLocal
 import org.koitharu.kotatsu.core.prefs.ReaderMode
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaSource
@@ -77,10 +78,18 @@ class MangaDataRepository @Inject constructor(
 	}
 
 	suspend fun storeManga(manga: Manga) {
-		val tags = manga.tags.toEntities()
 		db.withTransaction {
-			db.getTagsDao().upsert(tags)
-			db.getMangaDao().upsert(manga.toEntity(), tags)
+			// avoid storing local manga if remote one is already stored
+			val existing = if (manga.isLocal) {
+				db.getMangaDao().find(manga.id)?.manga
+			} else {
+				null
+			}
+			if (existing == null || existing.source == manga.source.name) {
+				val tags = manga.tags.toEntities()
+				db.getTagsDao().upsert(tags)
+				db.getMangaDao().upsert(manga.toEntity(), tags)
+			}
 		}
 	}
 

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

@@ -22,6 +22,7 @@ import org.koitharu.kotatsu.core.util.ext.observe
 import org.koitharu.kotatsu.core.util.ext.putEnumValue
 import org.koitharu.kotatsu.core.util.ext.takeIfReadable
 import org.koitharu.kotatsu.core.util.ext.toUriOrNull
+import org.koitharu.kotatsu.explore.data.SourcesSortOrder
 import org.koitharu.kotatsu.list.domain.ListSortOrder
 import org.koitharu.kotatsu.parsers.model.SortOrder
 import org.koitharu.kotatsu.parsers.util.find
@@ -209,6 +210,10 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 			return policy.isNetworkAllowed(connectivityManager)
 		}
 
+	var sourcesSortOrder: SourcesSortOrder
+		get() = prefs.getEnumValue(KEY_SOURCES_ORDER, SourcesSortOrder.MANUAL)
+		set(value) = prefs.edit { putEnumValue(KEY_SOURCES_ORDER, value) }
+
 	var isSourcesGridMode: Boolean
 		get() = prefs.getBoolean(KEY_SOURCES_GRID, false)
 		set(value) = prefs.edit { putBoolean(KEY_SOURCES_GRID, value) }
@@ -354,6 +359,16 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 	val is32BitColorsEnabled: Boolean
 		get() = prefs.getBoolean(KEY_32BIT_COLOR, false)
 
+	val isPeriodicalBackupEnabled: Boolean
+		get() = prefs.getBoolean(KEY_BACKUP_PERIODICAL_ENABLED, false)
+
+	val periodicalBackupFrequency: Long
+		get() = prefs.getString(KEY_BACKUP_PERIODICAL_FREQUENCY, null)?.toLongOrNull() ?: 7L
+
+	var periodicalBackupOutput: Uri?
+		get() = prefs.getString(KEY_BACKUP_PERIODICAL_OUTPUT, null)?.toUriOrNull()
+		set(value) = prefs.edit { putString(KEY_BACKUP_PERIODICAL_OUTPUT, value?.toString()) }
+
 	fun isTipEnabled(tip: String): Boolean {
 		return prefs.getStringSet(KEY_TIPS_CLOSED, emptySet())?.contains(tip) != true
 	}
@@ -458,6 +473,10 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		const val KEY_ZOOM_MODE = "zoom_mode"
 		const val KEY_BACKUP = "backup"
 		const val KEY_RESTORE = "restore"
+		const val KEY_BACKUP_PERIODICAL_ENABLED = "backup_periodic"
+		const val KEY_BACKUP_PERIODICAL_FREQUENCY = "backup_periodic_freq"
+		const val KEY_BACKUP_PERIODICAL_OUTPUT = "backup_periodic_output"
+		const val KEY_BACKUP_PERIODICAL_LAST = "backup_periodic_last"
 		const val KEY_HISTORY_GROUPING = "history_grouping"
 		const val KEY_READING_INDICATORS = "reading_indicators"
 		const val KEY_REVERSE_CHAPTERS = "reverse_chapters"
@@ -514,6 +533,8 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		const val KEY_RELATED_MANGA = "related_manga"
 		const val KEY_NAV_MAIN = "nav_main"
 		const val KEY_32BIT_COLOR = "enhanced_colors"
+		const val KEY_SOURCES_ORDER = "sources_sort_order"
+		const val KEY_SOURCES_CATALOG = "sources_catalog"
 
 		// About
 		const val KEY_APP_UPDATE = "app_update"

app/src/main/kotlin/org/koitharu/kotatsu/core/ui/BaseActivity.kt

@@ -6,7 +6,6 @@ import android.graphics.Color
 import android.os.Build
 import android.os.Bundle
 import android.view.KeyEvent
-import android.view.MenuItem
 import android.view.View
 import android.view.ViewGroup
 import androidx.annotation.CallSuper
@@ -96,11 +95,10 @@ abstract class BaseActivity<B : ViewBinding> :
 		insetsDelegate.onViewCreated(binding.root)
 	}
 
-	override fun onOptionsItemSelected(item: MenuItem) = if (item.itemId == android.R.id.home) {
-		onBackPressedDispatcher.onBackPressed()
-		// TODO: navigateUpTo
-		true
-	} else super.onOptionsItemSelected(item)
+	override fun onSupportNavigateUp(): Boolean {
+		dispatchNavigateUp()
+		return true
+	}
 
 	override fun onKeyDown(keyCode: Int, event: KeyEvent?): Boolean {
 		if (BuildConfig.DEBUG && keyCode == KeyEvent.KEYCODE_VOLUME_UP) {
@@ -151,6 +149,17 @@ abstract class BaseActivity<B : ViewBinding> :
 		window.statusBarColor = defaultStatusBarColor
 	}
 
+	protected open fun dispatchNavigateUp() {
+		val upIntent = parentActivityIntent
+		if (upIntent != null) {
+			if (!navigateUpTo(upIntent)) {
+				startActivity(upIntent)
+			}
+		} else {
+			finishAfterTransition()
+		}
+	}
+
 	private fun putDataToExtras(intent: Intent?) {
 		intent?.putExtra(EXTRA_DATA, intent.data)
 	}

app/src/main/kotlin/org/koitharu/kotatsu/core/ui/dialog/ErrorDetailsDialog.kt

@@ -4,11 +4,11 @@ import android.content.ClipData
 import android.content.ClipboardManager
 import android.content.Context
 import android.os.Bundle
-import android.text.method.LinkMovementMethod
 import android.view.LayoutInflater
 import android.view.ViewGroup
 import androidx.core.text.HtmlCompat
 import androidx.core.text.htmlEncode
+import androidx.core.text.method.LinkMovementMethodCompat
 import androidx.core.text.parseAsHtml
 import androidx.fragment.app.FragmentManager
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
@@ -37,7 +37,7 @@ class ErrorDetailsDialog : AlertDialogFragment<DialogErrorDetailsBinding>() {
 	override fun onViewBindingCreated(binding: DialogErrorDetailsBinding, savedInstanceState: Bundle?) {
 		super.onViewBindingCreated(binding, savedInstanceState)
 		with(binding.textViewMessage) {
-			movementMethod = LinkMovementMethod.getInstance()
+			movementMethod = LinkMovementMethodCompat.getInstance()
 			text = context.getString(
 				R.string.manga_error_description_pattern,
 				exception.message?.htmlEncode().orEmpty(),

app/src/main/kotlin/org/koitharu/kotatsu/core/ui/list/RecyclerScrollKeeper.kt

@@ -0,0 +1,40 @@
+package org.koitharu.kotatsu.core.ui.list
+
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import androidx.recyclerview.widget.RecyclerView.AdapterDataObserver
+
+class RecyclerScrollKeeper(
+	private val rv: RecyclerView,
+) : AdapterDataObserver() {
+
+	private val scrollUpRunnable = Runnable {
+		(rv.layoutManager as? LinearLayoutManager)?.scrollToPositionWithOffset(0, 0)
+	}
+
+	fun attach() {
+		rv.adapter?.registerAdapterDataObserver(this)
+	}
+
+	override fun onItemRangeInserted(positionStart: Int, itemCount: Int) {
+		super.onItemRangeInserted(positionStart, itemCount)
+		if (positionStart == 0 && isScrolledToTop()) {
+			postScrollUp()
+		}
+	}
+
+	override fun onItemRangeMoved(fromPosition: Int, toPosition: Int, itemCount: Int) {
+		super.onItemRangeMoved(fromPosition, toPosition, itemCount)
+		if (toPosition == 0 && isScrolledToTop()) {
+			postScrollUp()
+		}
+	}
+
+	private fun postScrollUp() {
+		rv.postDelayed(scrollUpRunnable, 500L)
+	}
+
+	private fun isScrolledToTop(): Boolean {
+		return (rv.layoutManager as? LinearLayoutManager)?.findFirstVisibleItemPosition() == 0
+	}
+}

app/src/main/kotlin/org/koitharu/kotatsu/core/ui/widgets/CubicSlider.kt

@@ -0,0 +1,74 @@
+package org.koitharu.kotatsu.core.ui.widgets
+
+import android.content.Context
+import android.util.ArrayMap
+import android.util.AttributeSet
+import com.google.android.material.slider.Slider
+import kotlin.math.cbrt
+import kotlin.math.pow
+
+class CubicSlider @JvmOverloads constructor(
+	context: Context,
+	attrs: AttributeSet? = null,
+) : Slider(context, attrs) {
+
+	private val changeListeners = ArrayMap<OnChangeListener, OnChangeListenerMapper>(1)
+
+	override fun setValue(value: Float) {
+		super.setValue(value.unmap())
+	}
+
+	override fun getValue(): Float {
+		return super.getValue().map()
+	}
+
+	override fun getValueFrom(): Float {
+		return super.getValueFrom().map()
+	}
+
+	override fun setValueFrom(valueFrom: Float) {
+		super.setValueFrom(valueFrom.unmap())
+	}
+
+	override fun getValueTo(): Float {
+		return super.getValueTo().map()
+	}
+
+	override fun setValueTo(valueTo: Float) {
+		super.setValueTo(valueTo.unmap())
+	}
+
+	override fun addOnChangeListener(listener: OnChangeListener) {
+		val mapper = OnChangeListenerMapper(listener)
+		super.addOnChangeListener(mapper)
+		changeListeners[listener] = mapper
+	}
+
+	override fun removeOnChangeListener(listener: OnChangeListener) {
+		changeListeners.remove(listener)?.let {
+			super.removeOnChangeListener(it)
+		}
+	}
+
+	override fun clearOnChangeListeners() {
+		super.clearOnChangeListeners()
+		changeListeners.clear()
+	}
+
+	private fun Float.map(): Float {
+		return this.pow(3)
+	}
+
+	private fun Float.unmap(): Float {
+		return cbrt(this)
+	}
+
+	private inner class OnChangeListenerMapper(
+		private val delegate: OnChangeListener,
+	) : OnChangeListener {
+
+		override fun onValueChange(slider: Slider, value: Float, fromUser: Boolean) {
+			delegate.onValueChange(slider, value.map(), fromUser)
+		}
+	}
+}

app/src/main/kotlin/org/koitharu/kotatsu/core/util/CompositeMutex.kt

@@ -26,7 +26,7 @@ class CompositeMutex<T : Any> : Set<T> {
 	}
 
 	override fun isEmpty(): Boolean {
-		return state.isEmpty
+		return state.isEmpty()
 	}
 
 	override fun iterator(): Iterator<T> {

app/src/main/kotlin/org/koitharu/kotatsu/core/util/CompositeMutex2.kt

@@ -19,7 +19,7 @@ class CompositeMutex2<T : Any> : Set<T> {
 	}
 
 	override fun isEmpty(): Boolean {
-		return delegates.isEmpty
+		return delegates.isEmpty()
 	}
 
 	override fun iterator(): Iterator<T> {

app/src/main/kotlin/org/koitharu/kotatsu/core/util/LocaleComparator.kt

@@ -0,0 +1,26 @@
+package org.koitharu.kotatsu.core.util
+
+import androidx.core.os.LocaleListCompat
+import org.koitharu.kotatsu.core.util.ext.map
+import java.util.Locale
+
+class LocaleComparator : Comparator<Locale?> {
+
+	private val deviceLocales = LocaleListCompat.getAdjustedDefault()//LocaleManagerCompat.getSystemLocales(context)
+		.map { it.language }
+		.distinct()
+
+	override fun compare(a: Locale?, b: Locale?): Int {
+		return if (a === b) {
+			0
+		} else {
+			val indexA = if (a == null) -1 else deviceLocales.indexOf(a.language)
+			val indexB = if (b == null) -1 else deviceLocales.indexOf(b.language)
+			if (indexA < 0 && indexB < 0) {
+				compareValues(a?.language, b?.language)
+			} else {
+				-2 - (indexA - indexB)
+			}
+		}
+	}
+}

app/src/main/kotlin/org/koitharu/kotatsu/core/util/ScreenOrientationHelper.kt

@@ -6,13 +6,16 @@ import android.content.res.Configuration
 import android.database.ContentObserver
 import android.os.Handler
 import android.provider.Settings
+import dagger.hilt.android.scopes.ActivityScoped
 import kotlinx.coroutines.channels.awaitClose
 import kotlinx.coroutines.channels.trySendBlocking
 import kotlinx.coroutines.flow.callbackFlow
 import kotlinx.coroutines.flow.distinctUntilChanged
 import kotlinx.coroutines.flow.onStart
+import javax.inject.Inject
 
-class ScreenOrientationHelper(private val activity: Activity) {
+@ActivityScoped
+class ScreenOrientationHelper @Inject constructor(private val activity: Activity) {
 
 	val isAutoRotationEnabled: Boolean
 		get() = Settings.System.getInt(
@@ -31,9 +34,15 @@ class ScreenOrientationHelper(private val activity: Activity) {
 			}
 		}
 
-	fun toggleOrientation() {
-		isLandscape = !isLandscape
-	}
+	var isLocked: Boolean
+		get() = activity.requestedOrientation == ActivityInfo.SCREEN_ORIENTATION_LOCKED
+		set(value) {
+			activity.requestedOrientation = if (value) {
+				ActivityInfo.SCREEN_ORIENTATION_LOCKED
+			} else {
+				ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED
+			}
+		}
 
 	fun observeAutoOrientation() = callbackFlow {
 		val observer = object : ContentObserver(Handler(activity.mainLooper)) {

app/src/main/kotlin/org/koitharu/kotatsu/core/util/ext/Android.kt

@@ -83,7 +83,7 @@ fun <I> ActivityResultLauncher<I>.tryLaunch(
 	e.printStackTraceDebug()
 }.isSuccess
 
-fun SharedPreferences.observe() = callbackFlow<String?> {
+fun SharedPreferences.observe(): Flow<String?> = callbackFlow {
 	val listener = SharedPreferences.OnSharedPreferenceChangeListener { _, key ->
 		trySendBlocking(key)
 	}

app/src/main/kotlin/org/koitharu/kotatsu/core/util/ext/Coil.kt

@@ -23,7 +23,7 @@ fun ImageView.newImageRequest(lifecycleOwner: LifecycleOwner, data: Any?): Image
 			return null
 		}
 	}
-	disposeImageRequest()
+	// disposeImageRequest()
 	return ImageRequest.Builder(context)
 		.data(data)
 		.lifecycle(lifecycleOwner)

app/src/main/kotlin/org/koitharu/kotatsu/core/util/ext/Http.kt

@@ -8,6 +8,7 @@ import okhttp3.Response
 import okhttp3.internal.closeQuietly
 import okio.IOException
 import org.json.JSONObject
+import org.jsoup.HttpStatusException
 import java.net.HttpURLConnection
 
 private val TYPE_JSON = "application/json".toMediaType()
@@ -34,9 +35,8 @@ val HttpUrl.isHttpOrHttps: Boolean
 
 fun Response.ensureSuccess() = apply {
 	if (!isSuccessful || code == HttpURLConnection.HTTP_NO_CONTENT) {
-		val message = "Invalid response: $code $message at ${request.url}"
 		closeQuietly()
-		throw IllegalStateException(message)
+		throw HttpStatusException(message, code, request.url.toString())
 	}
 }
 

app/src/main/kotlin/org/koitharu/kotatsu/core/util/ext/View.kt

@@ -12,6 +12,7 @@ import androidx.core.view.children
 import androidx.core.view.descendants
 import androidx.core.view.isVisible
 import androidx.recyclerview.widget.RecyclerView
+import androidx.recyclerview.widget.RecyclerView.ViewHolder
 import androidx.viewpager2.widget.ViewPager2
 import com.google.android.material.progressindicator.BaseProgressIndicator
 import com.google.android.material.slider.Slider
@@ -68,6 +69,10 @@ inline fun ViewPager2.doOnPageChanged(crossinline callback: (Int) -> Unit) {
 val ViewPager2.recyclerView: RecyclerView?
 	get() = children.firstNotNullOfOrNull { it as? RecyclerView }
 
+fun ViewPager2.findCurrentViewHolder(): ViewHolder? {
+	return recyclerView?.findViewHolderForAdapterPosition(currentItem)
+}
+
 fun View.resetTransformations() {
 	alpha = 1f
 	translationX = 0f

app/src/main/kotlin/org/koitharu/kotatsu/details/domain/DetailsInteractor.kt

@@ -87,5 +87,5 @@ class DetailsInteractor @Inject constructor(
 		}
 	}
 
-	suspend fun findLocal(seed: Manga) = localMangaRepository.getRemoteManga(seed)
+	suspend fun findRemote(seed: Manga) = localMangaRepository.getRemoteManga(seed)
 }

app/src/main/kotlin/org/koitharu/kotatsu/details/domain/DetailsLoadUseCase.kt

@@ -12,6 +12,7 @@ import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.channelFlow
 import kotlinx.coroutines.runInterruptible
 import org.koitharu.kotatsu.core.model.isLocal
+import org.koitharu.kotatsu.core.os.NetworkState
 import org.koitharu.kotatsu.core.parser.MangaDataRepository
 import org.koitharu.kotatsu.core.parser.MangaIntent
 import org.koitharu.kotatsu.core.parser.MangaRepository
@@ -32,6 +33,7 @@ class DetailsLoadUseCase @Inject constructor(
 	private val mangaRepositoryFactory: MangaRepository.Factory,
 	private val recoverUseCase: RecoverMangaUseCase,
 	private val imageGetter: Html.ImageGetter,
+	private val networkState: NetworkState,
 ) {
 
 	operator fun invoke(intent: MangaIntent): Flow<MangaDetails> = channelFlow {
@@ -46,6 +48,13 @@ class DetailsLoadUseCase @Inject constructor(
 			null
 		}
 		send(MangaDetails(manga, null, null, false))
+		if (!networkState.value) {
+			// try load offline instead
+			local?.await()?.manga?.let { localManga ->
+				send(MangaDetails(localManga, null, localManga.description?.parseAsHtml(withImages = false), true))
+				return@channelFlow
+			}
+		}
 		val details = getDetails(manga)
 		send(MangaDetails(details, local?.peek(), details.description?.parseAsHtml(withImages = false), false))
 		send(MangaDetails(details, local?.await(), details.description?.parseAsHtml(withImages = true), true))

app/src/main/kotlin/org/koitharu/kotatsu/details/domain/ProgressUpdateUseCase.kt

@@ -3,6 +3,7 @@ package org.koitharu.kotatsu.details.domain
 import org.koitharu.kotatsu.core.db.MangaDatabase
 import org.koitharu.kotatsu.core.model.findChapter
 import org.koitharu.kotatsu.core.model.isLocal
+import org.koitharu.kotatsu.core.os.NetworkState
 import org.koitharu.kotatsu.core.parser.MangaRepository
 import org.koitharu.kotatsu.history.data.PROGRESS_NONE
 import org.koitharu.kotatsu.local.data.LocalMangaRepository
@@ -13,6 +14,7 @@ class ProgressUpdateUseCase @Inject constructor(
 	private val mangaRepositoryFactory: MangaRepository.Factory,
 	private val database: MangaDatabase,
 	private val localMangaRepository: LocalMangaRepository,
+	private val networkState: NetworkState,
 ) {
 
 	suspend operator fun invoke(manga: Manga): Float {
@@ -22,6 +24,9 @@ class ProgressUpdateUseCase @Inject constructor(
 		} else {
 			manga
 		}
+		if (!seed.isLocal && !networkState.value) {
+			return PROGRESS_NONE
+		}
 		val repo = mangaRepositoryFactory.create(seed.source)
 		val details = if (manga.source != seed.source || seed.chapters.isNullOrEmpty()) {
 			repo.getDetails(seed)

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

@@ -1,7 +1,6 @@
 package org.koitharu.kotatsu.details.ui
 
 import android.os.Bundle
-import android.text.method.LinkMovementMethod
 import android.transition.TransitionManager
 import android.view.LayoutInflater
 import android.view.View
@@ -13,6 +12,7 @@ import androidx.core.content.ContextCompat
 import androidx.core.graphics.Insets
 import androidx.core.text.buildSpannedString
 import androidx.core.text.color
+import androidx.core.text.method.LinkMovementMethodCompat
 import androidx.core.view.isGone
 import androidx.core.view.isVisible
 import androidx.core.view.updatePadding
@@ -107,7 +107,7 @@ class DetailsFragment :
 		binding.infoLayout.textViewSource.setOnClickListener(this)
 		binding.textViewDescription.addOnLayoutChangeListener(this)
 		binding.textViewDescription.viewTreeObserver.addOnDrawListener(this)
-		binding.textViewDescription.movementMethod = LinkMovementMethod.getInstance()
+		binding.textViewDescription.movementMethod = LinkMovementMethodCompat.getInstance()
 		binding.chipsTags.onChipClickListener = this
 		binding.recyclerViewRelated.addItemDecoration(
 			SpacingItemDecoration(resources.getDimensionPixelOffset(R.dimen.grid_spacing)),

app/src/main/kotlin/org/koitharu/kotatsu/details/ui/DetailsMenuProvider.kt

@@ -19,7 +19,7 @@ import org.koitharu.kotatsu.core.os.AppShortcutManager
 import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
 import org.koitharu.kotatsu.core.util.ShareHelper
 import org.koitharu.kotatsu.download.ui.dialog.DownloadOption
-import org.koitharu.kotatsu.favourites.ui.categories.select.FavouriteSheet
+import org.koitharu.kotatsu.favourites.ui.categories.select.FavoriteSheet
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.scrobbling.common.ui.selector.ScrobblingSelectorSheet
 import org.koitharu.kotatsu.search.ui.multi.MultiSearchActivity
@@ -63,7 +63,7 @@ class DetailsMenuProvider(
 
 			R.id.action_favourite -> {
 				viewModel.manga.value?.let {
-					FavouriteSheet.show(activity.supportFragmentManager, it)
+					FavoriteSheet.show(activity.supportFragmentManager, it)
 				}
 			}
 

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

@@ -149,15 +149,13 @@ class DetailsViewModel @Inject constructor(
 	val scrobblingInfo: StateFlow<List<ScrobblingInfo>> = interactor.observeScrobblingInfo(mangaId)
 		.stateIn(viewModelScope + Dispatchers.Default, SharingStarted.Eagerly, emptyList())
 
-	val relatedManga: StateFlow<List<MangaItemModel>> = manga
-		.mapLatest {
-			if (it != null && settings.isRelatedMangaEnabled) {
-				relatedMangaUseCase.invoke(it)?.toUi(ListMode.GRID, extraProvider).orEmpty()
-			} else {
-				emptyList()
-			}
+	val relatedManga: StateFlow<List<MangaItemModel>> = manga.mapLatest {
+		if (it != null && settings.isRelatedMangaEnabled) {
+			relatedMangaUseCase.invoke(it)?.toUi(ListMode.GRID, extraProvider).orEmpty()
+		} else {
+			emptyList()
 		}
-		.stateIn(viewModelScope, SharingStarted.Lazily, emptyList())
+	}.stateIn(viewModelScope, SharingStarted.Lazily, emptyList())
 
 	val branches: StateFlow<List<MangaBranch>> = combine(
 		details,
@@ -217,7 +215,7 @@ class DetailsViewModel @Inject constructor(
 		}
 		launchJob(Dispatchers.Default) {
 			val manga = details.firstOrNull { it != null && it.isLocal } ?: return@launchJob
-			remoteManga.value = interactor.findLocal(manga.toManga())
+			remoteManga.value = interactor.findRemote(manga.toManga())
 		}
 	}
 

app/src/main/kotlin/org/koitharu/kotatsu/details/ui/scrobbling/ScrobblingInfoSheet.kt

@@ -2,7 +2,6 @@ package org.koitharu.kotatsu.details.ui.scrobbling
 
 import android.content.Intent
 import android.os.Bundle
-import android.text.method.LinkMovementMethod
 import android.view.LayoutInflater
 import android.view.MenuItem
 import android.view.View
@@ -12,6 +11,7 @@ import android.widget.RatingBar
 import android.widget.Toast
 import androidx.appcompat.widget.PopupMenu
 import androidx.core.net.toUri
+import androidx.core.text.method.LinkMovementMethodCompat
 import androidx.fragment.app.FragmentManager
 import androidx.fragment.app.activityViewModels
 import coil.ImageLoader
@@ -71,7 +71,7 @@ class ScrobblingInfoSheet :
 		binding.ratingBar.onRatingBarChangeListener = this
 		binding.buttonMenu.setOnClickListener(this)
 		binding.imageViewCover.setOnClickListener(this)
-		binding.textViewDescription.movementMethod = LinkMovementMethod.getInstance()
+		binding.textViewDescription.movementMethod = LinkMovementMethodCompat.getInstance()
 
 		menu = PopupMenu(binding.root.context, binding.buttonMenu).apply {
 			inflate(R.menu.opt_scrobbling)

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

@@ -18,8 +18,7 @@ data class DownloadState(
 	val currentPage: Int = 0,
 	val eta: Long = -1L,
 	val localManga: LocalManga? = null,
-	val downloadedChapters: LongArray = LongArray(0),
-	val scheduledChapters: LongArray = LongArray(0),
+	val downloadedChapters: Int = 0,
 	val timestamp: Long = System.currentTimeMillis(),
 ) {
 
@@ -42,68 +41,17 @@ data class DownloadState(
 		.putLong(DATA_ETA, eta)
 		.putLong(DATA_TIMESTAMP, timestamp)
 		.putString(DATA_ERROR, error)
-		.putLongArray(DATA_CHAPTERS, downloadedChapters)
-		.putLongArray(DATA_CHAPTERS_SRC, scheduledChapters)
+		.putInt(DATA_CHAPTERS, downloadedChapters)
 		.putBoolean(DATA_INDETERMINATE, isIndeterminate)
 		.putBoolean(DATA_PAUSED, isPaused)
 		.build()
 
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as DownloadState
-
-		if (manga != other.manga) return false
-		if (isIndeterminate != other.isIndeterminate) return false
-		if (isPaused != other.isPaused) return false
-		if (isStopped != other.isStopped) return false
-		if (error != other.error) return false
-		if (totalChapters != other.totalChapters) return false
-		if (currentChapter != other.currentChapter) return false
-		if (totalPages != other.totalPages) return false
-		if (currentPage != other.currentPage) return false
-		if (eta != other.eta) return false
-		if (localManga != other.localManga) return false
-		if (!downloadedChapters.contentEquals(other.downloadedChapters)) return false
-		if (!scheduledChapters.contentEquals(other.scheduledChapters)) return false
-		if (timestamp != other.timestamp) return false
-		if (max != other.max) return false
-		if (progress != other.progress) return false
-		if (percent != other.percent) return false
-
-		return true
-	}
-
-	override fun hashCode(): Int {
-		var result = manga.hashCode()
-		result = 31 * result + isIndeterminate.hashCode()
-		result = 31 * result + isPaused.hashCode()
-		result = 31 * result + isStopped.hashCode()
-		result = 31 * result + (error?.hashCode() ?: 0)
-		result = 31 * result + totalChapters
-		result = 31 * result + currentChapter
-		result = 31 * result + totalPages
-		result = 31 * result + currentPage
-		result = 31 * result + eta.hashCode()
-		result = 31 * result + (localManga?.hashCode() ?: 0)
-		result = 31 * result + downloadedChapters.contentHashCode()
-		result = 31 * result + scheduledChapters.contentHashCode()
-		result = 31 * result + timestamp.hashCode()
-		result = 31 * result + max
-		result = 31 * result + progress
-		result = 31 * result + percent.hashCode()
-		return result
-	}
-
-
 	companion object {
 
 		private const val DATA_MANGA_ID = "manga_id"
 		private const val DATA_MAX = "max"
 		private const val DATA_PROGRESS = "progress"
-		private const val DATA_CHAPTERS = "chapter"
-		private const val DATA_CHAPTERS_SRC = "chapters_src"
+		private const val DATA_CHAPTERS = "chapter_cnt"
 		private const val DATA_ETA = "eta"
 		private const val DATA_TIMESTAMP = "timestamp"
 		private const val DATA_ERROR = "error"
@@ -126,8 +74,6 @@ data class DownloadState(
 
 		fun getTimestamp(data: Data): Date = Date(data.getLong(DATA_TIMESTAMP, 0L))
 
-		fun getDownloadedChapters(data: Data): LongArray = data.getLongArray(DATA_CHAPTERS) ?: LongArray(0)
-
-		fun getScheduledChapters(data: Data): LongArray = data.getLongArray(DATA_CHAPTERS_SRC) ?: LongArray(0)
+		fun getDownloadedChapters(data: Data): Int = data.getInt(DATA_CHAPTERS, 0)
 	}
 }

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

@@ -2,28 +2,22 @@ package org.koitharu.kotatsu.download.ui.list
 
 import android.transition.TransitionManager
 import android.view.View
-import androidx.core.content.ContextCompat
 import androidx.core.view.isVisible
 import androidx.lifecycle.LifecycleOwner
-import androidx.recyclerview.widget.DividerItemDecoration
-import androidx.recyclerview.widget.RecyclerView
 import androidx.work.WorkInfo
 import coil.ImageLoader
+import coil.request.SuccessResult
+import coil.util.CoilUtils
 import com.hannesdorfmann.adapterdelegates4.dsl.adapterDelegateViewBinding
 import org.koitharu.kotatsu.R
-import org.koitharu.kotatsu.core.ui.BaseListAdapter
 import org.koitharu.kotatsu.core.ui.image.TrimTransformation
-import org.koitharu.kotatsu.core.util.ext.drawableEnd
 import org.koitharu.kotatsu.core.util.ext.enqueueWith
 import org.koitharu.kotatsu.core.util.ext.isAnimationsEnabled
 import org.koitharu.kotatsu.core.util.ext.newImageRequest
 import org.koitharu.kotatsu.core.util.ext.source
 import org.koitharu.kotatsu.core.util.ext.textAndVisible
 import org.koitharu.kotatsu.databinding.ItemDownloadBinding
-import org.koitharu.kotatsu.download.ui.list.chapters.DownloadChapter
-import org.koitharu.kotatsu.download.ui.list.chapters.downloadChapterAD
 import org.koitharu.kotatsu.list.ui.ListModelDiffCallback
-import org.koitharu.kotatsu.list.ui.adapter.ListItemType
 import org.koitharu.kotatsu.list.ui.model.ListModel
 import org.koitharu.kotatsu.parsers.util.format
 
@@ -36,9 +30,7 @@ fun downloadItemAD(
 ) {
 
 	val percentPattern = context.resources.getString(R.string.percent_string_pattern)
-	val expandIcon = ContextCompat.getDrawable(context, R.drawable.ic_expand_collapse)
-	val chaptersAdapter = BaseListAdapter<DownloadChapter>()
-		.addDelegate(ListItemType.CHAPTER, downloadChapterAD())
+	// val expandIcon = ContextCompat.getDrawable(context, R.drawable.ic_expand_collapse)
 
 	val clickListener = object : View.OnClickListener, View.OnLongClickListener {
 		override fun onClick(v: View) {
@@ -59,27 +51,26 @@ fun downloadItemAD(
 	binding.buttonResume.setOnClickListener(clickListener)
 	itemView.setOnClickListener(clickListener)
 	itemView.setOnLongClickListener(clickListener)
-	binding.recyclerViewChapters.addItemDecoration(DividerItemDecoration(context, RecyclerView.VERTICAL))
-	binding.recyclerViewChapters.adapter = chaptersAdapter
 
 	bind { payloads ->
 		if (ListModelDiffCallback.PAYLOAD_CHECKED_CHANGED in payloads && context.isAnimationsEnabled) {
 			TransitionManager.beginDelayedTransition(binding.constraintLayout)
 		}
 		binding.textViewTitle.text = item.manga.title
-		binding.imageViewCover.newImageRequest(lifecycleOwner, item.manga.coverUrl)?.apply {
-			placeholder(R.drawable.ic_placeholder)
-			fallback(R.drawable.ic_placeholder)
-			error(R.drawable.ic_error_placeholder)
-			allowRgb565(true)
-			transformations(TrimTransformation())
-			source(item.manga.source)
-			enqueueWith(coil)
+		if ((CoilUtils.result(binding.imageViewCover) as? SuccessResult)?.memoryCacheKey != item.coverCacheKey) {
+			binding.imageViewCover.newImageRequest(lifecycleOwner, item.manga.coverUrl)?.apply {
+				placeholder(R.drawable.ic_placeholder)
+				fallback(R.drawable.ic_placeholder)
+				error(R.drawable.ic_error_placeholder)
+				allowRgb565(true)
+				transformations(TrimTransformation())
+				memoryCacheKey(item.coverCacheKey)
+				source(item.manga.source)
+				enqueueWith(coil)
+			}
 		}
-		binding.textViewTitle.isChecked = item.isExpanded
-		binding.textViewTitle.drawableEnd = if (item.isExpandable) expandIcon else null
-		binding.cardDetails.isVisible = item.isExpanded
-		chaptersAdapter.items = item.chapters
+		// binding.textViewTitle.isChecked = item.isExpanded
+		// binding.textViewTitle.drawableEnd = if (item.isExpandable) expandIcon else null
 		when (item.workState) {
 			WorkInfo.State.ENQUEUED,
 			WorkInfo.State.BLOCKED -> {
@@ -117,11 +108,11 @@ fun downloadItemAD(
 				binding.progressBar.isVisible = false
 				binding.progressBar.isEnabled = true
 				binding.textViewPercent.isVisible = false
-				if (item.totalChapters > 0) {
+				if (item.chaptersDownloaded > 0) {
 					binding.textViewDetails.text = context.resources.getQuantityString(
 						R.plurals.chapters,
-						item.totalChapters,
-						item.totalChapters,
+						item.chaptersDownloaded,
+						item.chaptersDownloaded,
 					)
 					binding.textViewDetails.isVisible = true
 				} else {

app/src/main/kotlin/org/koitharu/kotatsu/download/ui/list/DownloadItemModel.kt

@@ -2,7 +2,7 @@ package org.koitharu.kotatsu.download.ui.list
 
 import android.text.format.DateUtils
 import androidx.work.WorkInfo
-import org.koitharu.kotatsu.download.ui.list.chapters.DownloadChapter
+import coil.memory.MemoryCache
 import org.koitharu.kotatsu.list.ui.ListModelDiffCallback
 import org.koitharu.kotatsu.list.ui.model.ListModel
 import org.koitharu.kotatsu.parsers.model.Manga
@@ -17,14 +17,15 @@ data class DownloadItemModel(
 	val manga: Manga,
 	val error: String?,
 	val max: Int,
-	val totalChapters: Int,
 	val progress: Int,
 	val eta: Long,
 	val timestamp: Date,
-	val chapters: List<DownloadChapter>,
+	val chaptersDownloaded: Int,
 	val isExpanded: Boolean,
 ) : ListModel, Comparable<DownloadItemModel> {
 
+	val coverCacheKey = MemoryCache.Key(manga.coverUrl, mapOf("dl" to "1"))
+
 	val percent: Float
 		get() = if (max > 0) progress / max.toFloat() else 0f
 
@@ -38,7 +39,7 @@ data class DownloadItemModel(
 		get() = workState == WorkInfo.State.RUNNING && isPaused
 
 	val isExpandable: Boolean
-		get() = chapters.isNotEmpty()
+		get() = false // TODO
 
 	fun getEtaString(): CharSequence? = if (hasEta) {
 		DateUtils.getRelativeTimeSpanString(

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

@@ -15,6 +15,7 @@ import dagger.hilt.android.AndroidEntryPoint
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.ui.BaseActivity
 import org.koitharu.kotatsu.core.ui.list.ListSelectionController
+import org.koitharu.kotatsu.core.ui.list.RecyclerScrollKeeper
 import org.koitharu.kotatsu.core.ui.util.MenuInvalidator
 import org.koitharu.kotatsu.core.ui.util.ReversibleActionObserver
 import org.koitharu.kotatsu.core.util.ext.observe
@@ -53,6 +54,7 @@ class DownloadsActivity : BaseActivity<ActivityDownloadsBinding>(),
 			addItemDecoration(decoration)
 			adapter = downloadsAdapter
 			selectionController.attachToRecyclerView(this)
+			RecyclerScrollKeeper(this).attach()
 		}
 		addMenuProvider(DownloadsMenuProvider(this, viewModel))
 		viewModel.items.observe(this) {

app/src/main/kotlin/org/koitharu/kotatsu/download/ui/list/DownloadsViewModel.kt

@@ -28,7 +28,6 @@ import org.koitharu.kotatsu.core.util.ext.MutableEventFlow
 import org.koitharu.kotatsu.core.util.ext.call
 import org.koitharu.kotatsu.core.util.ext.daysDiff
 import org.koitharu.kotatsu.download.domain.DownloadState
-import org.koitharu.kotatsu.download.ui.list.chapters.DownloadChapter
 import org.koitharu.kotatsu.download.ui.worker.DownloadWorker
 import org.koitharu.kotatsu.list.ui.model.EmptyState
 import org.koitharu.kotatsu.list.ui.model.ListHeader
@@ -239,8 +238,6 @@ class DownloadsViewModel @Inject constructor(
 		val mangaId = DownloadState.getMangaId(workData)
 		if (mangaId == 0L) return null
 		val manga = getManga(mangaId) ?: return null
-		val downloadedChapters = DownloadState.getDownloadedChapters(workData)
-		val scheduledChapters = DownloadState.getScheduledChapters(workData).toSet()
 		return DownloadItemModel(
 			id = id,
 			workState = state,
@@ -252,19 +249,8 @@ class DownloadsViewModel @Inject constructor(
 			progress = DownloadState.getProgress(workData),
 			eta = DownloadState.getEta(workData),
 			timestamp = DownloadState.getTimestamp(workData),
-			totalChapters = downloadedChapters.size,
+			chaptersDownloaded = DownloadState.getDownloadedChapters(workData),
 			isExpanded = isExpanded,
-			chapters = manga.chapters?.mapNotNull {
-				if (it.id in scheduledChapters) {
-					DownloadChapter(
-						number = it.number,
-						name = it.name,
-						isDownloaded = it.id in downloadedChapters,
-					)
-				} else {
-					null
-				}
-			}.orEmpty(),
 		)
 	}
 

app/src/main/kotlin/org/koitharu/kotatsu/download/ui/worker/DownloadWorker.kt

@@ -38,6 +38,7 @@ import okio.buffer
 import okio.sink
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.exceptions.TooManyRequestExceptions
+import org.koitharu.kotatsu.core.model.ids
 import org.koitharu.kotatsu.core.network.CommonHeaders
 import org.koitharu.kotatsu.core.network.MangaHttpClient
 import org.koitharu.kotatsu.core.parser.MangaDataRepository
@@ -46,7 +47,6 @@ import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.util.Throttler
 import org.koitharu.kotatsu.core.util.ext.awaitFinishedWorkInfosByTag
 import org.koitharu.kotatsu.core.util.ext.awaitUpdateWork
-import org.koitharu.kotatsu.core.util.ext.awaitWorkInfoById
 import org.koitharu.kotatsu.core.util.ext.awaitWorkInfosByTag
 import org.koitharu.kotatsu.core.util.ext.deleteAwait
 import org.koitharu.kotatsu.core.util.ext.deleteWork
@@ -105,11 +105,12 @@ class DownloadWorker @AssistedInject constructor(
 		setForeground(getForegroundInfo())
 		val mangaId = inputData.getLong(MANGA_ID, 0L)
 		val manga = mangaDataRepository.findMangaById(mangaId) ?: return Result.failure()
-		val chaptersIds = inputData.getLongArray(CHAPTERS_IDS)?.takeUnless { it.isEmpty() }
-		val downloadedIds = getDoneChapters()
 		lastPublishedState = DownloadState(manga, isIndeterminate = true)
+		publishState(DownloadState(manga, isIndeterminate = true))
+		val chaptersIds = inputData.getLongArray(CHAPTERS_IDS)?.takeUnless { it.isEmpty() }
+		val downloadedIds = getDoneChapters(manga)
 		return try {
-			downloadMangaImpl(chaptersIds, downloadedIds)
+			downloadMangaImpl(manga, chaptersIds, downloadedIds)
 			Result.success(currentState.toWorkData())
 		} catch (e: CancellationException) {
 			withContext(NonCancellable) {
@@ -147,10 +148,11 @@ class DownloadWorker @AssistedInject constructor(
 	}
 
 	private suspend fun downloadMangaImpl(
+		subject: Manga,
 		includedIds: LongArray?,
-		excludedIds: LongArray,
+		excludedIds: Set<Long>,
 	) {
-		var manga = currentState.manga
+		var manga = subject
 		val chaptersToSkip = excludedIds.toMutableSet()
 		withMangaLock(manga) {
 			ContextCompat.registerReceiver(
@@ -178,16 +180,9 @@ class DownloadWorker @AssistedInject constructor(
 					}
 				}
 				val chapters = getChapters(mangaDetails, includedIds)
-				publishState(
-					currentState.copy(scheduledChapters = LongArray(chapters.size) { i -> chapters[i].id }),
-				)
 				for ((chapterIndex, chapter) in chapters.withIndex()) {
 					if (chaptersToSkip.remove(chapter.id)) {
-						publishState(
-							currentState.copy(
-								downloadedChapters = currentState.downloadedChapters + chapter.id,
-							),
-						)
+						publishState(currentState.copy(downloadedChapters = currentState.downloadedChapters + 1))
 						continue
 					}
 					val pages = runFailsafe(pausingHandle) {
@@ -225,11 +220,7 @@ class DownloadWorker @AssistedInject constructor(
 							localStorageChanges.emit(LocalMangaInput.of(output.rootFile).getManga())
 						}.onFailure(Throwable::printStackTraceDebug)
 					}
-					publishState(
-						currentState.copy(
-							downloadedChapters = currentState.downloadedChapters + chapter.id,
-						),
-					)
+					publishState(currentState.copy(downloadedChapters = currentState.downloadedChapters + 1))
 				}
 				publishState(currentState.copy(isIndeterminate = true, eta = -1L))
 				output.mergeWithExisting()
@@ -336,11 +327,9 @@ class DownloadWorker @AssistedInject constructor(
 		setProgress(state.toWorkData())
 	}
 
-	private suspend fun getDoneChapters(): LongArray {
-		val work = WorkManager.getInstance(applicationContext).awaitWorkInfoById(id)
-			?: return LongArray(0)
-		return DownloadState.getDownloadedChapters(work.progress)
-	}
+	private suspend fun getDoneChapters(manga: Manga) = runCatchingCancellable {
+		localMangaRepository.getDetails(manga).chapters?.ids()
+	}.getOrNull().orEmpty()
 
 	private fun getChapters(
 		manga: Manga,

app/src/main/kotlin/org/koitharu/kotatsu/explore/data/MangaSourcesRepository.kt

@@ -19,6 +19,7 @@ import org.koitharu.kotatsu.core.prefs.observeAsFlow
 import org.koitharu.kotatsu.core.ui.util.ReversibleHandle
 import org.koitharu.kotatsu.parsers.model.ContentType
 import org.koitharu.kotatsu.parsers.model.MangaSource
+import org.koitharu.kotatsu.parsers.util.mapToSet
 import java.util.Collections
 import java.util.EnumSet
 import javax.inject.Inject
@@ -43,15 +44,44 @@ class MangaSourcesRepository @Inject constructor(
 		get() = Collections.unmodifiableSet(remoteSources)
 
 	suspend fun getEnabledSources(): List<MangaSource> {
-		return dao.findAllEnabled().toSources(settings.isNsfwContentDisabled)
+		val order = settings.sourcesSortOrder
+		return dao.findAllEnabled(order).toSources(settings.isNsfwContentDisabled, order)
 	}
 
-	fun observeEnabledSources(): Flow<List<MangaSource>> = observeIsNsfwDisabled().flatMapLatest { skipNsfw ->
-		dao.observeEnabled().map {
-			it.toSources(skipNsfw)
-		}
+	suspend fun getDisabledSources(): List<MangaSource> {
+		return dao.findAllDisabled().toSources(settings.isNsfwContentDisabled, null)
 	}
 
+	fun observeEnabledSourcesCount(): Flow<Int> {
+		return combine(
+			observeIsNsfwDisabled(),
+			dao.observeEnabled(SourcesSortOrder.MANUAL),
+		) { skipNsfw, sources ->
+			sources.count { skipNsfw || !MangaSource(it.source).isNsfw() }
+		}.distinctUntilChanged()
+	}
+
+	fun observeAvailableSourcesCount(): Flow<Int> {
+		return combine(
+			observeIsNsfwDisabled(),
+			dao.observeEnabled(SourcesSortOrder.MANUAL),
+		) { skipNsfw, enabledSources ->
+			val enabled = enabledSources.mapToSet { it.source }
+			allMangaSources.count { x ->
+				x.name !in enabled && (!skipNsfw || !x.isNsfw())
+			}
+		}.distinctUntilChanged()
+	}
+
+	fun observeEnabledSources(): Flow<List<MangaSource>> = combine(
+		observeIsNsfwDisabled(),
+		observeSortOrder(),
+	) { skipNsfw, order ->
+		dao.observeEnabled(order).map {
+			it.toSources(skipNsfw, order)
+		}
+	}.flatMapLatest { it }
+
 	fun observeAll(): Flow<List<Pair<MangaSource, Boolean>>> = dao.observeAll().map { entities ->
 		val result = ArrayList<Pair<MangaSource, Boolean>>(entities.size)
 		for (entity in entities) {
@@ -146,7 +176,10 @@ class MangaSourcesRepository @Inject constructor(
 		return result
 	}
 
-	private fun List<MangaSourceEntity>.toSources(skipNsfwSources: Boolean): List<MangaSource> {
+	private fun List<MangaSourceEntity>.toSources(
+		skipNsfwSources: Boolean,
+		sortOrder: SourcesSortOrder?,
+	): List<MangaSource> {
 		val result = ArrayList<MangaSource>(size)
 		for (entity in this) {
 			val source = MangaSource(entity.source)
@@ -157,6 +190,9 @@ class MangaSourcesRepository @Inject constructor(
 				result.add(source)
 			}
 		}
+		if (sortOrder == SourcesSortOrder.ALPHABETIC) {
+			result.sortBy { it.title }
+		}
 		return result
 	}
 
@@ -167,4 +203,8 @@ class MangaSourcesRepository @Inject constructor(
 	private fun observeIsNewSourcesEnabled() = settings.observeAsFlow(AppSettings.KEY_SOURCES_NEW) {
 		isNewSourcesTipEnabled
 	}
+
+	private fun observeSortOrder() = settings.observeAsFlow(AppSettings.KEY_SOURCES_ORDER) {
+		sourcesSortOrder
+	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/explore/data/SourcesSortOrder.kt

@@ -0,0 +1,12 @@
+package org.koitharu.kotatsu.explore.data
+
+import androidx.annotation.StringRes
+import org.koitharu.kotatsu.R
+
+enum class SourcesSortOrder(
+	@StringRes val titleResId: Int,
+) {
+	ALPHABETIC(R.string.by_name),
+	POPULARITY(R.string.popular),
+	MANUAL(R.string.manual),
+}

app/src/main/kotlin/org/koitharu/kotatsu/explore/ui/ExploreFragment.kt

@@ -1,6 +1,7 @@
 package org.koitharu.kotatsu.explore.ui
 
 import android.content.DialogInterface
+import android.content.Intent
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.MenuItem
@@ -46,6 +47,7 @@ import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.search.ui.MangaListActivity
 import org.koitharu.kotatsu.settings.SettingsActivity
 import org.koitharu.kotatsu.settings.newsources.NewSourcesDialogFragment
+import org.koitharu.kotatsu.settings.sources.catalog.SourcesCatalogActivity
 import org.koitharu.kotatsu.suggestions.ui.SuggestionsActivity
 import javax.inject.Inject
 
@@ -83,7 +85,7 @@ class ExploreFragment :
 			SpanSizeResolver(this, resources.getDimensionPixelSize(R.dimen.explore_grid_width)).attach()
 			addItemDecoration(TypedListSpacingDecoration(context, false))
 		}
-		addMenuProvider(ExploreMenuProvider(binding.root.context, viewModel))
+		addMenuProvider(ExploreMenuProvider(binding.root.context))
 		viewModel.content.observe(viewLifecycleOwner) {
 			exploreAdapter?.items = it
 		}
@@ -109,7 +111,7 @@ class ExploreFragment :
 	}
 
 	override fun onListHeaderClick(item: ListHeader, view: View) {
-		startActivity(SettingsActivity.newManageSourcesIntent(view.context))
+		startActivity(Intent(view.context, SourcesCatalogActivity::class.java))
 	}
 
 	override fun onPrimaryButtonClick(tipView: TipView) {
@@ -174,7 +176,6 @@ class ExploreFragment :
 		} else {
 			LinearLayoutManager(requireContext())
 		}
-		activity?.invalidateOptionsMenu()
 	}
 
 	private fun showSuggestionsTip() {

app/src/main/kotlin/org/koitharu/kotatsu/explore/ui/ExploreMenuProvider.kt

@@ -6,10 +6,10 @@ import android.view.MenuInflater
 import android.view.MenuItem
 import androidx.core.view.MenuProvider
 import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.settings.SettingsActivity
 
 class ExploreMenuProvider(
 	private val context: Context,
-	private val viewModel: ExploreViewModel,
 ) : MenuProvider {
 
 	override fun onCreateMenu(menu: Menu, menuInflater: MenuInflater) {
@@ -18,17 +18,12 @@ class ExploreMenuProvider(
 
 	override fun onMenuItemSelected(menuItem: MenuItem): Boolean {
 		return when (menuItem.itemId) {
-			R.id.action_grid -> {
-				viewModel.setGridMode(!menuItem.isChecked)
+			R.id.action_manage -> {
+				context.startActivity(SettingsActivity.newSourcesSettingsIntent(context))
 				true
 			}
 
 			else -> false
 		}
 	}
-
-	override fun onPrepareMenu(menu: Menu) {
-		super.onPrepareMenu(menu)
-		menu.findItem(R.id.action_grid)?.isChecked = viewModel.isGrid.value == true
-	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/explore/ui/ExploreViewModel.kt

@@ -21,6 +21,7 @@ import org.koitharu.kotatsu.core.ui.util.ReversibleAction
 import org.koitharu.kotatsu.core.util.ext.MutableEventFlow
 import org.koitharu.kotatsu.core.util.ext.call
 import org.koitharu.kotatsu.explore.data.MangaSourcesRepository
+import org.koitharu.kotatsu.explore.data.SourcesSortOrder
 import org.koitharu.kotatsu.explore.domain.ExploreRepository
 import org.koitharu.kotatsu.explore.ui.model.ExploreButtons
 import org.koitharu.kotatsu.explore.ui.model.MangaSourceItem
@@ -50,11 +51,13 @@ class ExploreViewModel @Inject constructor(
 		valueProducer = { isSourcesGridMode },
 	)
 
-	val isSuggestionsEnabled = settings.observeAsFlow(
+	private val isSuggestionsEnabled = settings.observeAsFlow(
 		key = AppSettings.KEY_SUGGESTIONS,
 		valueProducer = { isSuggestionsEnabled },
 	)
 
+	val sortOrder = MutableStateFlow(SourcesSortOrder.MANUAL) // TODO
+
 	val onOpenManga = MutableEventFlow<Manga>()
 	val onActionDone = MutableEventFlow<ReversibleAction>()
 	val onShowSuggestionsTip = MutableEventFlow<Unit>()
@@ -104,10 +107,6 @@ class ExploreViewModel @Inject constructor(
 		}
 	}
 
-	fun setGridMode(value: Boolean) {
-		settings.isSourcesGridMode = value
-	}
-
 	fun respondSuggestionTip(isAccepted: Boolean) {
 		settings.isSuggestionsEnabled = isAccepted
 		settings.closeTip(TIP_SUGGESTIONS)
@@ -137,7 +136,7 @@ class ExploreViewModel @Inject constructor(
 			result += RecommendationsItem(recommendation)
 		}
 		if (sources.isNotEmpty()) {
-			result += ListHeader(R.string.remote_sources, R.string.manage)
+			result += ListHeader(R.string.remote_sources, R.string.catalog)
 			if (newSources.isNotEmpty()) {
 				result += TipModel(
 					key = TIP_NEW_SOURCES,

app/src/main/kotlin/org/koitharu/kotatsu/explore/ui/adapter/ExploreAdapterDelegates.kt

@@ -7,6 +7,7 @@ import androidx.swiperefreshlayout.widget.CircularProgressDrawable
 import coil.ImageLoader
 import com.hannesdorfmann.adapterdelegates4.dsl.adapterDelegateViewBinding
 import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.core.model.getSummary
 import org.koitharu.kotatsu.core.parser.favicon.faviconUri
 import org.koitharu.kotatsu.core.ui.image.FaviconDrawable
 import org.koitharu.kotatsu.core.ui.image.TrimTransformation
@@ -48,8 +49,8 @@ fun exploreButtonsAD(
 			icon.setColorSchemeColors(
 				context.getThemeColor(
 					materialR.attr.colorPrimary,
-					Color.DKGRAY
-				)
+					Color.DKGRAY,
+				),
 			)
 			binding.buttonRandom.icon = icon
 			icon.start()
@@ -98,7 +99,7 @@ fun exploreSourceListItemAD(
 		ItemExploreSourceListBinding.inflate(
 			layoutInflater,
 			parent,
-			false
+			false,
 		)
 	},
 	on = { item, _, _ -> item is MangaSourceItem && !item.isGrid },
@@ -112,6 +113,7 @@ fun exploreSourceListItemAD(
 
 	bind {
 		binding.textViewTitle.text = item.source.title
+		binding.textViewSubtitle.text = item.source.getSummary(context)
 		val fallbackIcon = FaviconDrawable(context, R.style.FaviconDrawable_Small, item.source.name)
 		binding.imageViewIcon.newImageRequest(lifecycleOwner, item.source.faviconUri())?.run {
 			fallback(fallbackIcon)
@@ -132,7 +134,7 @@ fun exploreSourceGridItemAD(
 		ItemExploreSourceGridBinding.inflate(
 			layoutInflater,
 			parent,
-			false
+			false,
 		)
 	},
 	on = { item, _, _ -> item is MangaSourceItem && item.isGrid },

app/src/main/kotlin/org/koitharu/kotatsu/favourites/data/FavouritesDao.kt

@@ -106,6 +106,9 @@ abstract class FavouritesDao {
 	@Query("SELECT DISTINCT category_id FROM favourites WHERE manga_id = :id AND deleted_at = 0")
 	abstract fun observeIds(id: Long): Flow<List<Long>>
 
+	@Query("SELECT DISTINCT category_id FROM favourites WHERE manga_id IN (:mangaIds) AND deleted_at = 0")
+	abstract suspend fun findCategoriesIds(mangaIds: Collection<Long>): List<Long>
+
 	/** INSERT **/
 
 	@Insert(onConflict = OnConflictStrategy.REPLACE)
@@ -169,7 +172,9 @@ abstract class FavouritesDao {
 		ListSortOrder.NEWEST -> "favourites.created_at DESC"
 		ListSortOrder.ALPHABETIC -> "manga.title ASC"
 		ListSortOrder.NEW_CHAPTERS -> "(SELECT chapters_new FROM tracks WHERE tracks.manga_id = manga.manga_id) DESC"
+		ListSortOrder.UPDATED, // for legacy support
 		ListSortOrder.PROGRESS -> "(SELECT percent FROM history WHERE history.manga_id = manga.manga_id) DESC"
+
 		else -> throw IllegalArgumentException("Sort order $sortOrder is not supported")
 	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/favourites/domain/FavouritesRepository.kt

@@ -102,6 +102,10 @@ class FavouritesRepository @Inject constructor(
 		return db.getFavouriteCategoriesDao().find(id.toInt()).toFavouriteCategory()
 	}
 
+	suspend fun getCategoriesIds(mangaIds: Collection<Long>): Set<Long> {
+		return db.getFavouritesDao().findCategoriesIds(mangaIds).toSet()
+	}
+
 	suspend fun createCategory(
 		title: String,
 		sortOrder: ListSortOrder,

app/src/main/kotlin/org/koitharu/kotatsu/favourites/ui/categories/select/FavoriteSheet.kt

@@ -19,17 +19,12 @@ import org.koitharu.kotatsu.core.util.ext.withArgs
 import org.koitharu.kotatsu.databinding.SheetFavoriteCategoriesBinding
 import org.koitharu.kotatsu.favourites.ui.categories.select.adapter.MangaCategoriesAdapter
 import org.koitharu.kotatsu.favourites.ui.categories.select.model.MangaCategoryItem
-import org.koitharu.kotatsu.list.ui.model.ListModel
 import org.koitharu.kotatsu.parsers.model.Manga
 
 @AndroidEntryPoint
-class FavouriteSheet :
-	BaseAdaptiveSheet<SheetFavoriteCategoriesBinding>(),
-	OnListItemClickListener<MangaCategoryItem> {
+class FavoriteSheet : BaseAdaptiveSheet<SheetFavoriteCategoriesBinding>(), OnListItemClickListener<MangaCategoryItem> {
 
-	private val viewModel: MangaCategoriesViewModel by viewModels()
-
-	private var adapter: MangaCategoriesAdapter? = null
+	private val viewModel by viewModels<FavoriteSheetViewModel>()
 
 	override fun onCreateViewBinding(
 		inflater: LayoutInflater,
@@ -41,44 +36,32 @@ class FavouriteSheet :
 		savedInstanceState: Bundle?,
 	) {
 		super.onViewBindingCreated(binding, savedInstanceState)
-		adapter = MangaCategoriesAdapter(this)
+		val adapter = MangaCategoriesAdapter(this)
 		binding.recyclerViewCategories.adapter = adapter
-		viewModel.content.observe(viewLifecycleOwner, this::onContentChanged)
+		viewModel.content.observe(viewLifecycleOwner, adapter)
 		viewModel.onError.observeEvent(viewLifecycleOwner, ::onError)
 	}
 
-	override fun onDestroyView() {
-		adapter = null
-		super.onDestroyView()
-	}
-
 	override fun onItemClick(item: MangaCategoryItem, view: View) {
 		viewModel.setChecked(item.category.id, !item.isChecked)
 	}
 
-	private fun onContentChanged(categories: List<ListModel>) {
-		adapter?.items = categories
-	}
-
 	private fun onError(e: Throwable) {
 		Toast.makeText(context ?: return, e.getDisplayMessage(resources), Toast.LENGTH_SHORT).show()
 	}
 
 	companion object {
 
-		private const val TAG = "FavouriteCategoriesDialog"
+		private const val TAG = "FavoriteSheet"
 		const val KEY_MANGA_LIST = "manga_list"
 
-		fun show(fm: FragmentManager, manga: Manga) = Companion.show(fm, listOf(manga))
+		fun show(fm: FragmentManager, manga: Manga) = show(fm, setOf(manga))
 
-		fun show(fm: FragmentManager, manga: Collection<Manga>) =
-			FavouriteSheet().withArgs(1) {
-				putParcelableArrayList(
-					KEY_MANGA_LIST,
-					manga.mapTo(ArrayList(manga.size)) {
-						ParcelableManga(it)
-					},
-				)
-			}.showDistinct(fm, TAG)
+		fun show(fm: FragmentManager, manga: Collection<Manga>) = FavoriteSheet().withArgs(1) {
+			putParcelableArrayList(
+				KEY_MANGA_LIST,
+				manga.mapTo(ArrayList(manga.size), ::ParcelableManga),
+			)
+		}.showDistinct(fm, TAG)
 	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/favourites/ui/categories/select/FavoriteSheetViewModel.kt

@@ -4,77 +4,70 @@ import androidx.lifecycle.SavedStateHandle
 import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.SharingStarted
-import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.combine
+import kotlinx.coroutines.flow.filterNotNull
 import kotlinx.coroutines.flow.stateIn
 import kotlinx.coroutines.plus
 import org.koitharu.kotatsu.core.model.ids
 import org.koitharu.kotatsu.core.model.parcelable.ParcelableManga
 import org.koitharu.kotatsu.core.prefs.AppSettings
+import org.koitharu.kotatsu.core.prefs.observeAsFlow
 import org.koitharu.kotatsu.core.ui.BaseViewModel
+import org.koitharu.kotatsu.core.util.ext.firstNotNull
 import org.koitharu.kotatsu.core.util.ext.require
 import org.koitharu.kotatsu.favourites.domain.FavouritesRepository
-import org.koitharu.kotatsu.favourites.ui.categories.select.FavouriteSheet.Companion.KEY_MANGA_LIST
 import org.koitharu.kotatsu.favourites.ui.categories.select.model.CategoriesHeaderItem
 import org.koitharu.kotatsu.favourites.ui.categories.select.model.MangaCategoryItem
-import org.koitharu.kotatsu.list.ui.model.ListModel
+import org.koitharu.kotatsu.parsers.util.mapToSet
 import javax.inject.Inject
 
 @HiltViewModel
-class MangaCategoriesViewModel @Inject constructor(
+class FavoriteSheetViewModel @Inject constructor(
 	savedStateHandle: SavedStateHandle,
 	private val favouritesRepository: FavouritesRepository,
 	settings: AppSettings,
 ) : BaseViewModel() {
 
-	private val manga = savedStateHandle.require<List<ParcelableManga>>(KEY_MANGA_LIST).map { it.manga }
+	private val manga = savedStateHandle.require<List<ParcelableManga>>(FavoriteSheet.KEY_MANGA_LIST).mapToSet {
+		it.manga
+	}
 	private val header = CategoriesHeaderItem()
-
-	val content: StateFlow<List<ListModel>> = combine(
+	private val checkedCategories = MutableStateFlow<Set<Long>?>(null)
+	val content = combine(
 		favouritesRepository.observeCategories(),
-		observeCategoriesIds(),
-	) { all, checked ->
-		buildList(all.size + 1) {
+		checkedCategories.filterNotNull(),
+		settings.observeAsFlow(AppSettings.KEY_TRACKER_ENABLED) { isTrackerEnabled },
+	) { categories, checked, tracker ->
+		buildList(categories.size + 1) {
 			add(header)
-			all.mapTo(this) {
+			categories.mapTo(this) { cat ->
 				MangaCategoryItem(
-					category = it,
-					isChecked = it.id in checked,
-					isTrackerEnabled = settings.isTrackerEnabled && AppSettings.TRACK_FAVOURITES in settings.trackSources,
+					category = cat,
+					isChecked = cat.id in checked,
+					isTrackerEnabled = tracker,
 				)
 			}
 		}
-	}.stateIn(viewModelScope + Dispatchers.Default, SharingStarted.Eagerly, emptyList())
+	}.stateIn(viewModelScope + Dispatchers.Default, SharingStarted.Eagerly, listOf(header))
+
+	init {
+		launchJob(Dispatchers.Default) {
+			checkedCategories.value = favouritesRepository.getCategoriesIds(manga.ids())
+		}
+	}
 
 	fun setChecked(categoryId: Long, isChecked: Boolean) {
 		launchJob(Dispatchers.Default) {
+			val checkedIds = checkedCategories.firstNotNull()
 			if (isChecked) {
+				checkedCategories.value = checkedIds + categoryId
 				favouritesRepository.addToCategory(categoryId, manga)
 			} else {
+				checkedCategories.value = checkedIds - categoryId
 				favouritesRepository.removeFromCategory(categoryId, manga.ids())
 			}
 		}
 	}
-
-	private fun observeCategoriesIds() = if (manga.size == 1) {
-		// Fast path
-		favouritesRepository.observeCategoriesIds(manga[0].id)
-	} else {
-		combine(
-			manga.map { favouritesRepository.observeCategoriesIds(it.id) },
-		) { array ->
-			val result = HashSet<Long>()
-			var isFirst = true
-			for (ids in array) {
-				if (isFirst) {
-					result.addAll(ids)
-					isFirst = false
-				} else {
-					result.retainAll(ids.toSet())
-				}
-			}
-			result
-		}
-	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/history/data/HistoryRepository.kt

@@ -15,6 +15,8 @@ import org.koitharu.kotatsu.core.db.entity.toMangaTag
 import org.koitharu.kotatsu.core.db.entity.toMangaTags
 import org.koitharu.kotatsu.core.model.MangaHistory
 import org.koitharu.kotatsu.core.model.findById
+import org.koitharu.kotatsu.core.model.isLocal
+import org.koitharu.kotatsu.core.parser.MangaDataRepository
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.ui.util.ReversibleHandle
 import org.koitharu.kotatsu.core.util.ext.mapItems
@@ -35,6 +37,7 @@ class HistoryRepository @Inject constructor(
 	private val trackingRepository: TrackingRepository,
 	private val settings: AppSettings,
 	private val scrobblers: Set<@JvmSuppressWildcards Scrobbler>,
+	private val mangaRepository: MangaDataRepository,
 ) {
 
 	suspend fun getList(offset: Int, limit: Int): List<Manga> {
@@ -91,13 +94,8 @@ class HistoryRepository @Inject constructor(
 		if (shouldSkip(manga)) {
 			return
 		}
-		val tags = manga.tags.toEntities()
 		db.withTransaction {
-			val existing = db.getMangaDao().find(manga.id)?.manga
-			if (existing == null || existing.source == manga.source.name) {
-				db.getTagsDao().upsert(tags)
-				db.getMangaDao().upsert(manga.toEntity(), tags)
-			}
+			mangaRepository.storeManga(manga)
 			db.getHistoryDao().upsert(
 				HistoryEntity(
 					mangaId = manga.id,
@@ -185,7 +183,7 @@ class HistoryRepository @Inject constructor(
 
 	private suspend fun HistoryEntity.recoverIfNeeded(manga: Manga): HistoryEntity {
 		val chapters = manga.chapters
-		if (chapters.isNullOrEmpty() || chapters.findById(chapterId) != null) {
+		if (manga.isLocal || chapters.isNullOrEmpty() || chapters.findById(chapterId) != null) {
 			return this
 		}
 		val newChapterId = chapters.getOrNull(

app/src/main/kotlin/org/koitharu/kotatsu/history/ui/HistoryListFragment.kt

@@ -9,6 +9,7 @@ import dagger.hilt.android.AndroidEntryPoint
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.os.NetworkManageIntent
 import org.koitharu.kotatsu.core.ui.list.ListSelectionController
+import org.koitharu.kotatsu.core.ui.list.RecyclerScrollKeeper
 import org.koitharu.kotatsu.core.util.ext.addMenuProvider
 import org.koitharu.kotatsu.databinding.FragmentListBinding
 import org.koitharu.kotatsu.list.ui.MangaListFragment
@@ -23,6 +24,7 @@ class HistoryListFragment : MangaListFragment() {
 
 	override fun onViewBindingCreated(binding: FragmentListBinding, savedInstanceState: Bundle?) {
 		super.onViewBindingCreated(binding, savedInstanceState)
+		RecyclerScrollKeeper(binding.recyclerView).attach()
 		addMenuProvider(HistoryListMenuProvider(binding.root.context, viewModel))
 	}
 

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

@@ -41,7 +41,7 @@ import org.koitharu.kotatsu.core.util.ext.viewLifecycleScope
 import org.koitharu.kotatsu.databinding.FragmentListBinding
 import org.koitharu.kotatsu.details.ui.DetailsActivity
 import org.koitharu.kotatsu.download.ui.worker.DownloadStartedObserver
-import org.koitharu.kotatsu.favourites.ui.categories.select.FavouriteSheet
+import org.koitharu.kotatsu.favourites.ui.categories.select.FavoriteSheet
 import org.koitharu.kotatsu.list.ui.adapter.ListItemType
 import org.koitharu.kotatsu.list.ui.adapter.MangaListAdapter
 import org.koitharu.kotatsu.list.ui.adapter.MangaListListener
@@ -284,7 +284,7 @@ abstract class MangaListFragment :
 			}
 
 			R.id.action_favourite -> {
-				FavouriteSheet.show(childFragmentManager, selectedItems)
+				FavoriteSheet.show(childFragmentManager, selectedItems)
 				mode.finish()
 				true
 			}

app/src/main/kotlin/org/koitharu/kotatsu/list/ui/preview/PreviewFragment.kt

@@ -1,12 +1,12 @@
 package org.koitharu.kotatsu.list.ui.preview
 
 import android.os.Bundle
-import android.text.method.LinkMovementMethod
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.TextView
 import androidx.core.graphics.Insets
+import androidx.core.text.method.LinkMovementMethodCompat
 import androidx.core.view.isVisible
 import androidx.fragment.app.viewModels
 import coil.ImageLoader
@@ -52,7 +52,7 @@ class PreviewFragment : BaseFragment<FragmentPreviewBinding>(), View.OnClickList
 		super.onViewBindingCreated(binding, savedInstanceState)
 		binding.buttonClose.isVisible = activity is MangaListActivity
 		binding.buttonClose.setOnClickListener(this)
-		binding.textViewDescription.movementMethod = LinkMovementMethod.getInstance()
+		binding.textViewDescription.movementMethod = LinkMovementMethodCompat.getInstance()
 		binding.chipsTags.onChipClickListener = this
 		binding.textViewAuthor.setOnClickListener(this)
 		binding.imageViewCover.setOnClickListener(this)

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

@@ -22,6 +22,7 @@ import androidx.core.view.updatePadding
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.FragmentTransaction
 import androidx.fragment.app.commit
+import androidx.lifecycle.Lifecycle
 import androidx.lifecycle.lifecycleScope
 import androidx.lifecycle.withResumed
 import androidx.transition.TransitionManager
@@ -183,7 +184,8 @@ class MainActivity : BaseActivity<ActivityMainBinding>(), AppBarOwner, BottomNav
 
 	override fun onOptionsItemSelected(item: MenuItem): Boolean = when (item.itemId) {
 		android.R.id.home -> if (isSearchOpened()) {
-			super.onOptionsItemSelected(item)
+			closeSearchCallback.handleOnBackPressed()
+			true
 		} else {
 			viewBinding.searchView.requestFocus()
 			true
@@ -228,6 +230,9 @@ class MainActivity : BaseActivity<ActivityMainBinding>(), AppBarOwner, BottomNav
 				supportFragmentManager.commit {
 					setReorderingAllowed(true)
 					add(R.id.container, SearchSuggestionFragment.newInstance(), TAG_SEARCH)
+					navigationDelegate.primaryFragment?.let {
+						setMaxLifecycle(it, Lifecycle.State.STARTED)
+					}
 					setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE)
 					runOnCommit { onSearchOpened() }
 				}
@@ -413,16 +418,20 @@ class MainActivity : BaseActivity<ActivityMainBinding>(), AppBarOwner, BottomNav
 	private inner class CloseSearchCallback : OnBackPressedCallback(false) {
 
 		override fun handleOnBackPressed() {
-			val fragment = supportFragmentManager.findFragmentByTag(TAG_SEARCH)
+			val fm = supportFragmentManager
+			val fragment = fm.findFragmentByTag(TAG_SEARCH)
 			viewBinding.searchView.clearFocus()
 			if (fragment == null) {
 				// this should not happen but who knows
 				isEnabled = false
 				return
 			}
-			supportFragmentManager.commit {
+			fm.commit {
 				setReorderingAllowed(true)
 				remove(fragment)
+				navigationDelegate.primaryFragment?.let {
+					setMaxLifecycle(it, Lifecycle.State.RESUMED)
+				}
 				setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE)
 				runOnCommit { onSearchClosed() }
 			}

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

@@ -40,6 +40,7 @@ import org.koitharu.kotatsu.core.parser.MangaIntent
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.prefs.ReaderMode
 import org.koitharu.kotatsu.core.ui.BaseFullscreenActivity
+import org.koitharu.kotatsu.core.ui.widgets.ZoomControl
 import org.koitharu.kotatsu.core.util.GridTouchHelper
 import org.koitharu.kotatsu.core.util.IdlingDetector
 import org.koitharu.kotatsu.core.util.ShareHelper
@@ -52,6 +53,7 @@ import org.koitharu.kotatsu.core.util.ext.postDelayed
 import org.koitharu.kotatsu.core.util.ext.setValueRounded
 import org.koitharu.kotatsu.core.util.ext.zipWithPrevious
 import org.koitharu.kotatsu.databinding.ActivityReaderBinding
+import org.koitharu.kotatsu.details.ui.DetailsActivity
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaChapter
 import org.koitharu.kotatsu.reader.ui.config.ReaderConfigSheet
@@ -72,7 +74,8 @@ class ReaderActivity :
 	ReaderConfigSheet.Callback,
 	ReaderControlDelegate.OnInteractionListener,
 	OnApplyWindowInsetsListener,
-	IdlingDetector.Callback {
+	IdlingDetector.Callback,
+	ZoomControl.ZoomControlListener {
 
 	@Inject
 	lateinit var settings: AppSettings
@@ -110,6 +113,7 @@ class ReaderActivity :
 		controlDelegate = ReaderControlDelegate(resources, settings, this, this)
 		viewBinding.toolbarBottom.setOnMenuItemClickListener(::onOptionsItemSelected)
 		viewBinding.slider.setLabelFormatter(PageLabelFormatter())
+		viewBinding.zoomControl.listener = this
 		ReaderSliderListener(this, viewModel).attachToSlider(viewBinding.slider)
 		insetsDelegate.interceptingWindowInsetsListener = this
 		idlingDetector.bindToLifecycle(this)
@@ -145,6 +149,14 @@ class ReaderActivity :
 				.setAnchorView(viewBinding.appbarBottom)
 				.show()
 		}
+		viewModel.isZoomControlsEnabled.observe(this) {
+			viewBinding.zoomControl.isVisible = it
+		}
+	}
+
+	override fun getParentActivityIntent(): Intent? {
+		val manga = viewModel.manga?.toManga() ?: return null
+		return DetailsActivity.newIntent(this, manga)
 	}
 
 	override fun onUserInteraction() {
@@ -157,6 +169,14 @@ class ReaderActivity :
 		viewModel.saveCurrentState(readerManager.currentReader?.getCurrentState())
 	}
 
+	override fun onZoomIn() {
+		readerManager.currentReader?.onZoomIn()
+	}
+
+	override fun onZoomOut() {
+		readerManager.currentReader?.onZoomOut()
+	}
+
 	private fun onInitReader(mode: ReaderMode?) {
 		if (mode == null) {
 			return
@@ -249,6 +269,7 @@ class ReaderActivity :
 
 	override fun dispatchTouchEvent(ev: MotionEvent): Boolean {
 		touchHelper.dispatchTouchEvent(ev)
+		scrollTimer.onTouchEvent(ev)
 		return super.dispatchTouchEvent(ev)
 	}
 
@@ -286,15 +307,13 @@ class ReaderActivity :
 	private fun onPageSaved(uri: Uri?) {
 		if (uri != null) {
 			Snackbar.make(viewBinding.container, R.string.page_saved, Snackbar.LENGTH_LONG)
-				.setAnchorView(viewBinding.appbarBottom)
 				.setAction(R.string.share) {
 					ShareHelper(this).shareImage(uri)
-				}.show()
+				}
 		} else {
 			Snackbar.make(viewBinding.container, R.string.error_occurred, Snackbar.LENGTH_SHORT)
-				.setAnchorView(viewBinding.appbarBottom)
-				.show()
-		}
+		}.setAnchorView(viewBinding.appbarBottom)
+			.show()
 	}
 
 	private fun setWindowSecure(isSecure: Boolean) {

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

@@ -27,6 +27,7 @@ import kotlinx.coroutines.flow.onEach
 import kotlinx.coroutines.flow.stateIn
 import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.plus
+import org.koitharu.kotatsu.BuildConfig
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.bookmarks.domain.Bookmark
 import org.koitharu.kotatsu.bookmarks.domain.BookmarksRepository
@@ -118,17 +119,13 @@ class ReaderViewModel @Inject constructor(
 		valueProducer = { isReaderKeepScreenOn },
 	)
 
-	val isWebtoonZoomEnabled = settings.observeAsStateFlow(
-		scope = viewModelScope + Dispatchers.Default,
-		key = AppSettings.KEY_WEBTOON_ZOOM,
-		valueProducer = { isWebtoonZoomEnable },
-	)
-
-	val isZoomControlEnabled = settings.observeAsStateFlow(
-		scope = viewModelScope + Dispatchers.Default,
-		key = AppSettings.KEY_READER_ZOOM_BUTTONS,
-		valueProducer = { isReaderZoomButtonsEnabled },
-	)
+	val isZoomControlsEnabled = getObserveIsZoomControlEnabled().flatMapLatest { zoom ->
+		if (zoom) {
+			combine(readerMode, observeIsWebtoonZoomEnabled()) { mode, ze -> ze || mode != ReaderMode.WEBTOON }
+		} else {
+			flowOf(false)
+		}
+	}.stateIn(viewModelScope + Dispatchers.Default, SharingStarted.Lazily, false)
 
 	val readerSettings = ReaderSettings(
 		parentScope = viewModelScope,
@@ -259,10 +256,13 @@ class ReaderViewModel @Inject constructor(
 	@MainThread
 	fun onCurrentPageChanged(position: Int) {
 		val prevJob = stateChangeJob
+		val pages = content.value.pages // capture immediately
 		stateChangeJob = launchJob(Dispatchers.Default) {
 			prevJob?.cancelAndJoin()
 			loadingJob?.join()
-			val pages = content.value.pages
+			if (BuildConfig.DEBUG && pages.size != content.value.pages.size) {
+				throw IllegalStateException("Concurrent pages modification")
+			}
 			pages.getOrNull(position)?.let { page ->
 				currentState.update { cs ->
 					cs?.copy(chapterId = page.chapterId, page = page.index)
@@ -402,4 +402,14 @@ class ReaderViewModel @Inject constructor(
 		val ppc = 1f / chaptersCount
 		return ppc * chapterIndex + ppc * pagePercent
 	}
+
+	private fun observeIsWebtoonZoomEnabled() = settings.observeAsFlow(
+		key = AppSettings.KEY_WEBTOON_ZOOM,
+		valueProducer = { isWebtoonZoomEnable },
+	)
+
+	private fun getObserveIsZoomControlEnabled() = settings.observeAsFlow(
+		key = AppSettings.KEY_READER_ZOOM_BUTTONS,
+		valueProducer = { isReaderZoomButtonsEnabled },
+	)
 }

app/src/main/kotlin/org/koitharu/kotatsu/reader/ui/ScrollTimer.kt

@@ -1,5 +1,6 @@
 package org.koitharu.kotatsu.reader.ui
 
+import android.view.MotionEvent
 import androidx.lifecycle.LifecycleOwner
 import androidx.lifecycle.lifecycleScope
 import dagger.assisted.Assisted
@@ -8,11 +9,14 @@ import dagger.assisted.AssistedInject
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.delay
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.flow.flowOn
 import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.onEach
 import kotlinx.coroutines.isActive
 import kotlinx.coroutines.launch
+import kotlinx.coroutines.yield
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.prefs.observeAsFlow
 import kotlin.math.roundToLong
@@ -33,6 +37,7 @@ class ScrollTimer @AssistedInject constructor(
 	private var delayMs: Long = 10L
 	private var pageSwitchDelay: Long = 100L
 	private var resumeAt = 0L
+	private var isTouchDown = MutableStateFlow(false)
 
 	var isEnabled: Boolean = false
 		set(value) {
@@ -55,6 +60,19 @@ class ScrollTimer @AssistedInject constructor(
 		resumeAt = System.currentTimeMillis() + INTERACTION_SKIP_MS
 	}
 
+	fun onTouchEvent(event: MotionEvent) {
+		when (event.actionMasked) {
+			MotionEvent.ACTION_DOWN -> {
+				isTouchDown.value = true
+			}
+
+			MotionEvent.ACTION_UP,
+			MotionEvent.ACTION_CANCEL -> {
+				isTouchDown.value = false
+			}
+		}
+	}
+
 	private fun onSpeedChanged(speed: Float) {
 		if (speed <= 0f) {
 			delayMs = 0L
@@ -108,12 +126,18 @@ class ScrollTimer @AssistedInject constructor(
 	}
 
 	private fun isPaused(): Boolean {
-		return resumeAt > System.currentTimeMillis()
+		return isTouchDown.value || resumeAt > System.currentTimeMillis()
 	}
 
 	private suspend fun delayUntilResumed() {
 		while (isPaused()) {
-			delay(resumeAt - System.currentTimeMillis())
+			val delayTime = resumeAt - System.currentTimeMillis()
+			if (delayTime > 0) {
+				delay(delayTime)
+			} else {
+				yield()
+			}
+			isTouchDown.first { !it }
 		}
 	}
 

app/src/main/kotlin/org/koitharu/kotatsu/reader/ui/config/ReaderConfigSheet.kt

@@ -47,7 +47,10 @@ class ReaderConfigSheet :
 
 	private val viewModel by activityViewModels<ReaderViewModel>()
 	private val savePageRequest = registerForActivityResult(PageSaveContract(), this)
-	private var orientationHelper: ScreenOrientationHelper? = null
+
+	@Inject
+	lateinit var orientationHelper: ScreenOrientationHelper
+
 	private lateinit var mode: ReaderMode
 
 	@Inject
@@ -113,7 +116,7 @@ class ReaderConfigSheet :
 			}
 
 			R.id.button_screen_rotate -> {
-				orientationHelper?.toggleOrientation()
+				orientationHelper.isLandscape = !orientationHelper.isLandscape
 			}
 
 			R.id.button_color_filter -> {
@@ -128,9 +131,13 @@ class ReaderConfigSheet :
 		when (buttonView.id) {
 			R.id.switch_scroll_timer -> {
 				findCallback()?.isAutoScrollEnabled = isChecked
-				requireViewBinding().labelTimer.isVisible = isChecked
+				requireViewBinding().layoutTimer.isVisible = isChecked
 				requireViewBinding().sliderTimer.isVisible = isChecked
 			}
+
+			R.id.switch_screen_lock_rotation -> {
+				orientationHelper.isLocked = isChecked
+			}
 		}
 	}
 
@@ -159,6 +166,7 @@ class ReaderConfigSheet :
 		if (fromUser) {
 			settings.readerAutoscrollSpeed = value
 		}
+		(viewBinding ?: return).labelTimerValue.text = getString(R.string.speed_value, value * 10f)
 	}
 
 	override fun onActivityResult(result: Uri?) {
@@ -167,14 +175,23 @@ class ReaderConfigSheet :
 	}
 
 	private fun observeScreenOrientation() {
-		val helper = ScreenOrientationHelper(requireActivity())
-		orientationHelper = helper
-		helper.observeAutoOrientation()
+		orientationHelper.observeAutoOrientation()
 			.onEach {
-				requireViewBinding().buttonScreenRotate.isGone = it
+				with(requireViewBinding()) {
+					buttonScreenRotate.isGone = it
+					switchScreenLockRotation.isVisible = it
+					updateOrientationLockSwitch()
+				}
 			}.launchIn(viewLifecycleScope)
 	}
 
+	private fun updateOrientationLockSwitch() {
+		val switch = viewBinding?.switchScreenLockRotation ?: return
+		switch.setOnCheckedChangeListener(null)
+		switch.isChecked = orientationHelper.isLocked
+		switch.setOnCheckedChangeListener(this)
+	}
+
 	private fun findCallback(): Callback? {
 		return (parentFragment as? Callback) ?: (activity as? Callback)
 	}

app/src/main/kotlin/org/koitharu/kotatsu/reader/ui/config/ReaderSettings.kt

@@ -46,9 +46,6 @@ class ReaderSettings(
 	val isPagesNumbersEnabled: Boolean
 		get() = settings.isPagesNumbersEnabled
 
-	val isZoomControlsEnabled: Boolean
-		get() = settings.isReaderZoomButtonsEnabled
-
 	fun applyBackground(view: View) {
 		val bg = settings.readerBackground
 		view.background = bg.resolve(view.context)
@@ -106,8 +103,6 @@ class ReaderSettings(
 			if (
 				key == AppSettings.KEY_ZOOM_MODE ||
 				key == AppSettings.KEY_PAGES_NUMBERS ||
-				key == AppSettings.KEY_WEBTOON_ZOOM ||
-				key == AppSettings.KEY_READER_ZOOM_BUTTONS ||
 				key == AppSettings.KEY_READER_BACKGROUND ||
 				key == AppSettings.KEY_32BIT_COLOR
 			) {

app/src/main/kotlin/org/koitharu/kotatsu/reader/ui/pager/BaseReaderFragment.kt

@@ -6,6 +6,7 @@ import androidx.fragment.app.activityViewModels
 import androidx.viewbinding.ViewBinding
 import org.koitharu.kotatsu.core.prefs.ReaderAnimation
 import org.koitharu.kotatsu.core.ui.BaseFragment
+import org.koitharu.kotatsu.core.ui.widgets.ZoomControl
 import org.koitharu.kotatsu.core.util.ext.getParcelableCompat
 import org.koitharu.kotatsu.core.util.ext.isAnimationsEnabled
 import org.koitharu.kotatsu.core.util.ext.observe
@@ -14,7 +15,7 @@ import org.koitharu.kotatsu.reader.ui.ReaderViewModel
 
 private const val KEY_STATE = "state"
 
-abstract class BaseReaderFragment<B : ViewBinding> : BaseFragment<B>() {
+abstract class BaseReaderFragment<B : ViewBinding> : BaseFragment<B>(), ZoomControl.ZoomControlListener {
 
 	protected val viewModel by activityViewModels<ReaderViewModel>()
 	private var stateToSave: ReaderState? = null

app/src/main/kotlin/org/koitharu/kotatsu/reader/ui/pager/reversed/ReversedReaderFragment.kt

@@ -18,6 +18,7 @@ import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.os.NetworkState
 import org.koitharu.kotatsu.core.prefs.ReaderAnimation
 import org.koitharu.kotatsu.core.util.ext.doOnPageChanged
+import org.koitharu.kotatsu.core.util.ext.findCurrentViewHolder
 import org.koitharu.kotatsu.core.util.ext.observe
 import org.koitharu.kotatsu.core.util.ext.recyclerView
 import org.koitharu.kotatsu.core.util.ext.resetTransformations
@@ -28,6 +29,7 @@ import org.koitharu.kotatsu.reader.ui.pager.BaseReaderAdapter
 import org.koitharu.kotatsu.reader.ui.pager.BaseReaderFragment
 import org.koitharu.kotatsu.reader.ui.pager.ReaderPage
 import org.koitharu.kotatsu.reader.ui.pager.standard.NoAnimPageTransformer
+import org.koitharu.kotatsu.reader.ui.pager.standard.PageHolder
 import org.koitharu.kotatsu.reader.ui.pager.standard.PagerEventSupplier
 import org.koitharu.kotatsu.reader.ui.pager.standard.PagerReaderFragment
 import javax.inject.Inject
@@ -104,6 +106,15 @@ class ReversedReaderFragment : BaseReaderFragment<FragmentReaderStandardBinding>
 		exceptionResolver = exceptionResolver,
 	)
 
+	override fun onZoomIn() {
+		(viewBinding?.pager?.findCurrentViewHolder() as? PageHolder)?.onZoomIn()
+	}
+
+	override fun onZoomOut() {
+		(viewBinding?.pager?.findCurrentViewHolder() as? PageHolder)?.onZoomOut()
+	}
+
+
 	override fun switchPageBy(delta: Int) {
 		with(requireViewBinding().pager) {
 			setCurrentItem(currentItem - delta, isAnimationEnabled())

app/src/main/kotlin/org/koitharu/kotatsu/reader/ui/pager/standard/PageHolder.kt

@@ -4,6 +4,7 @@ import android.annotation.SuppressLint
 import android.graphics.PointF
 import android.net.Uri
 import android.view.View
+import android.view.animation.DecelerateInterpolator
 import androidx.core.view.isVisible
 import androidx.lifecycle.LifecycleOwner
 import com.davemorrissey.labs.subscaleview.ImageSource
@@ -12,6 +13,7 @@ import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.exceptions.resolve.ExceptionResolver
 import org.koitharu.kotatsu.core.model.ZoomMode
 import org.koitharu.kotatsu.core.os.NetworkState
+import org.koitharu.kotatsu.core.ui.widgets.ZoomControl
 import org.koitharu.kotatsu.core.util.ext.getDisplayMessage
 import org.koitharu.kotatsu.core.util.ext.ifZero
 import org.koitharu.kotatsu.core.util.ext.isLowRamDevice
@@ -29,7 +31,8 @@ open class PageHolder(
 	networkState: NetworkState,
 	exceptionResolver: ExceptionResolver,
 ) : BasePageHolder<ItemPageBinding>(binding, loader, settings, networkState, exceptionResolver),
-	View.OnClickListener {
+	View.OnClickListener,
+	ZoomControl.ZoomControlListener {
 
 	init {
 		binding.ssiv.bindToLifecycle(owner)
@@ -40,12 +43,10 @@ open class PageHolder(
 		@Suppress("LeakingThis")
 		bindingInfo.buttonErrorDetails.setOnClickListener(this)
 		binding.textViewNumber.isVisible = settings.isPagesNumbersEnabled
-		binding.zoomControl.listener = SsivZoomListener(binding.ssiv)
 	}
 
 	override fun onConfigChanged() {
 		super.onConfigChanged()
-		binding.zoomControl.isVisible = settings.isZoomControlsEnabled
 		@Suppress("SENSELESS_COMPARISON")
 		if (settings.applyBitmapConfig(binding.ssiv) && delegate != null) {
 			delegate.reload()
@@ -141,4 +142,23 @@ open class PageHolder(
 		bindingInfo.layoutError.isVisible = true
 		bindingInfo.progressBar.hide()
 	}
+
+	override fun onZoomIn() {
+		scaleBy(1.2f)
+	}
+
+	override fun onZoomOut() {
+		scaleBy(0.8f)
+	}
+
+	private fun scaleBy(factor: Float) {
+		val ssiv = binding.ssiv
+		val center = ssiv.getCenter() ?: return
+		val newScale = ssiv.scale * factor
+		ssiv.animateScaleAndCenter(newScale, center)?.apply {
+			withDuration(ssiv.resources.getInteger(android.R.integer.config_shortAnimTime).toLong())
+			withInterpolator(DecelerateInterpolator())
+			start()
+		}
+	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/reader/ui/pager/standard/PagerReaderFragment.kt

@@ -18,6 +18,7 @@ import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.os.NetworkState
 import org.koitharu.kotatsu.core.prefs.ReaderAnimation
 import org.koitharu.kotatsu.core.util.ext.doOnPageChanged
+import org.koitharu.kotatsu.core.util.ext.findCurrentViewHolder
 import org.koitharu.kotatsu.core.util.ext.observe
 import org.koitharu.kotatsu.core.util.ext.recyclerView
 import org.koitharu.kotatsu.core.util.ext.resetTransformations
@@ -82,6 +83,14 @@ class PagerReaderFragment : BaseReaderFragment<FragmentReaderStandardBinding>(),
 		super.onDestroyView()
 	}
 
+	override fun onZoomIn() {
+		(viewBinding?.pager?.findCurrentViewHolder() as? PageHolder)?.onZoomIn()
+	}
+
+	override fun onZoomOut() {
+		(viewBinding?.pager?.findCurrentViewHolder() as? PageHolder)?.onZoomOut()
+	}
+
 	override fun onGenericMotion(v: View?, event: MotionEvent): Boolean {
 		if (event.source and InputDevice.SOURCE_CLASS_POINTER != 0) {
 			if (event.actionMasked == MotionEvent.ACTION_SCROLL) {

app/src/main/kotlin/org/koitharu/kotatsu/reader/ui/pager/standard/SsivZoomListener.kt

@@ -1,28 +0,0 @@
-package org.koitharu.kotatsu.reader.ui.pager.standard
-
-import android.view.animation.DecelerateInterpolator
-import com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView
-import org.koitharu.kotatsu.core.ui.widgets.ZoomControl
-
-class SsivZoomListener(
-	private val ssiv: SubsamplingScaleImageView,
-) : ZoomControl.ZoomControlListener {
-
-	override fun onZoomIn() {
-		scaleBy(1.2f)
-	}
-
-	override fun onZoomOut() {
-		scaleBy(0.8f)
-	}
-
-	private fun scaleBy(factor: Float) {
-		val center = ssiv.getCenter() ?: return
-		val newScale = ssiv.scale * factor
-		ssiv.animateScaleAndCenter(newScale, center)?.apply {
-			withDuration(ssiv.resources.getInteger(android.R.integer.config_shortAnimTime).toLong())
-			withInterpolator(DecelerateInterpolator())
-			start()
-		}
-	}
-}

app/src/main/kotlin/org/koitharu/kotatsu/reader/ui/pager/webtoon/WebtoonReaderFragment.kt

@@ -4,18 +4,15 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.ViewGroup
 import android.view.animation.DecelerateInterpolator
-import androidx.core.view.isVisible
 import com.google.android.material.snackbar.Snackbar
 import dagger.hilt.android.AndroidEntryPoint
 import kotlinx.coroutines.async
 import kotlinx.coroutines.coroutineScope
-import kotlinx.coroutines.flow.combine
 import kotlinx.coroutines.yield
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.os.NetworkState
 import org.koitharu.kotatsu.core.util.ext.findCenterViewPosition
 import org.koitharu.kotatsu.core.util.ext.firstVisibleItemPosition
-import org.koitharu.kotatsu.core.util.ext.observe
 import org.koitharu.kotatsu.databinding.FragmentReaderWebtoonBinding
 import org.koitharu.kotatsu.reader.domain.PageLoader
 import org.koitharu.kotatsu.reader.ui.ReaderState
@@ -47,15 +44,6 @@ class WebtoonReaderFragment : BaseReaderFragment<FragmentReaderWebtoonBinding>()
 			adapter = readerAdapter
 			addOnPageScrollListener(PageScrollListener())
 		}
-		binding.zoomControl.listener = binding.frame
-
-		viewModel.isWebtoonZoomEnabled.observe(viewLifecycleOwner) {
-			binding.frame.isZoomEnable = it
-		}
-		combine(viewModel.isWebtoonZoomEnabled, viewModel.isZoomControlEnabled, Boolean::and)
-			.observe(viewLifecycleOwner) {
-				binding.zoomControl.isVisible = it
-			}
 	}
 
 	override fun onDestroyView() {
@@ -111,6 +99,14 @@ class WebtoonReaderFragment : BaseReaderFragment<FragmentReaderWebtoonBinding>()
 		)
 	}
 
+	override fun onZoomIn() {
+		viewBinding?.frame?.onZoomIn()
+	}
+
+	override fun onZoomOut() {
+		viewBinding?.frame?.onZoomOut()
+	}
+
 	private fun notifyPageChanged(page: Int) {
 		viewModel.onCurrentPageChanged(page)
 	}

app/src/main/kotlin/org/koitharu/kotatsu/remotelist/ui/RemoteListViewModel.kt

@@ -12,11 +12,11 @@ import kotlinx.coroutines.flow.SharingStarted
 import kotlinx.coroutines.flow.catch
 import kotlinx.coroutines.flow.combine
 import kotlinx.coroutines.flow.debounce
+import kotlinx.coroutines.flow.getAndUpdate
 import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.flow.onEach
 import kotlinx.coroutines.flow.stateIn
-import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.plus
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.model.distinctById
@@ -134,15 +134,17 @@ open class RemoteListViewModel @Inject constructor(
 					sortOrder = filterState.sortOrder,
 					tags = filterState.tags,
 				)
-				mangaList.update { oldList ->
+				val oldList = mangaList.getAndUpdate { oldList ->
 					if (!append || oldList.isNullOrEmpty()) {
 						list
 					} else {
 						oldList + list
 					}
-				}
-				if (append) {
-					hasNextPage.value = list.isNotEmpty()
+				}.orEmpty()
+				hasNextPage.value = if (append) {
+					list.isNotEmpty()
+				} else {
+					list.size > oldList.size || hasNextPage.value
 				}
 			} catch (e: CancellationException) {
 				throw e
@@ -152,6 +154,7 @@ open class RemoteListViewModel @Inject constructor(
 				if (!mangaList.value.isNullOrEmpty()) {
 					errorEvent.call(e)
 				}
+				hasNextPage.value = false
 			}
 		}.also { loadingJob = it }
 	}

app/src/main/kotlin/org/koitharu/kotatsu/search/ui/multi/MultiSearchActivity.kt

@@ -8,7 +8,6 @@ import android.view.MenuItem
 import android.view.View
 import androidx.activity.viewModels
 import androidx.appcompat.view.ActionMode
-import androidx.core.content.ContextCompat
 import androidx.core.graphics.Insets
 import androidx.core.view.updatePadding
 import coil.ImageLoader
@@ -26,7 +25,7 @@ import org.koitharu.kotatsu.core.util.ext.observeEvent
 import org.koitharu.kotatsu.databinding.ActivitySearchMultiBinding
 import org.koitharu.kotatsu.details.ui.DetailsActivity
 import org.koitharu.kotatsu.download.ui.worker.DownloadStartedObserver
-import org.koitharu.kotatsu.favourites.ui.categories.select.FavouriteSheet
+import org.koitharu.kotatsu.favourites.ui.categories.select.FavoriteSheet
 import org.koitharu.kotatsu.list.ui.MangaSelectionDecoration
 import org.koitharu.kotatsu.list.ui.adapter.MangaListListener
 import org.koitharu.kotatsu.list.ui.adapter.TypedListSpacingDecoration
@@ -159,7 +158,7 @@ class MultiSearchActivity :
 			}
 
 			R.id.action_favourite -> {
-				FavouriteSheet.show(supportFragmentManager, collectSelectedItems())
+				FavoriteSheet.show(supportFragmentManager, collectSelectedItems())
 				mode.finish()
 				true
 			}

app/src/main/kotlin/org/koitharu/kotatsu/search/ui/suggestion/adapter/SearchSuggestionSourceAD.kt

@@ -5,6 +5,7 @@ import androidx.lifecycle.LifecycleOwner
 import coil.ImageLoader
 import com.hannesdorfmann.adapterdelegates4.dsl.adapterDelegateViewBinding
 import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.core.model.getSummary
 import org.koitharu.kotatsu.core.parser.favicon.faviconUri
 import org.koitharu.kotatsu.core.ui.image.FaviconDrawable
 import org.koitharu.kotatsu.core.util.ext.enqueueWith
@@ -40,6 +41,7 @@ fun searchSuggestionSourceAD(
 		} else {
 			item.source.title
 		}
+		binding.textViewSubtitle.text = item.source.getSummary(context)
 		binding.switchLocal.isChecked = item.isEnabled
 		val fallbackIcon = FaviconDrawable(context, R.style.FaviconDrawable_Small, item.source.name)
 		binding.imageViewCover.newImageRequest(lifecycleOwner, item.source.faviconUri())?.run {

app/src/main/kotlin/org/koitharu/kotatsu/settings/AppearanceSettingsFragment.kt

@@ -1,6 +1,5 @@
 package org.koitharu.kotatsu.settings
 
-import android.content.Context
 import android.content.Intent
 import android.content.SharedPreferences
 import android.net.Uri
@@ -9,7 +8,6 @@ import android.os.Bundle
 import android.provider.Settings
 import android.view.View
 import androidx.appcompat.app.AppCompatDelegate
-import androidx.core.app.LocaleManagerCompat
 import androidx.preference.ListPreference
 import androidx.preference.Preference
 import dagger.hilt.android.AndroidEntryPoint
@@ -18,8 +16,8 @@ import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.prefs.ListMode
 import org.koitharu.kotatsu.core.ui.BasePreferenceFragment
 import org.koitharu.kotatsu.core.ui.util.ActivityRecreationHandle
+import org.koitharu.kotatsu.core.util.LocaleComparator
 import org.koitharu.kotatsu.core.util.ext.getLocalesConfig
-import org.koitharu.kotatsu.core.util.ext.map
 import org.koitharu.kotatsu.core.util.ext.postDelayed
 import org.koitharu.kotatsu.core.util.ext.setDefaultValueCompat
 import org.koitharu.kotatsu.core.util.ext.toList
@@ -27,7 +25,6 @@ import org.koitharu.kotatsu.parsers.util.names
 import org.koitharu.kotatsu.parsers.util.toTitleCase
 import org.koitharu.kotatsu.settings.utils.ActivityListPreference
 import org.koitharu.kotatsu.settings.utils.SliderPreference
-import java.util.Locale
 import javax.inject.Inject
 
 @AndroidEntryPoint
@@ -110,7 +107,7 @@ class AppearanceSettingsFragment :
 	private fun initLocalePicker(preference: ListPreference) {
 		val locales = preference.context.getLocalesConfig()
 			.toList()
-			.sortedWith(LocaleComparator(preference.context))
+			.sortedWith(LocaleComparator())
 		preference.entries = Array(locales.size + 1) { i ->
 			if (i == 0) {
 				getString(R.string.automatic)
@@ -134,24 +131,4 @@ class AppearanceSettingsFragment :
 			getString(it.title)
 		}
 	}
-
-	private class LocaleComparator(context: Context) : Comparator<Locale> {
-
-		private val deviceLocales = LocaleManagerCompat.getSystemLocales(context)
-			.map { it.language }
-
-		override fun compare(a: Locale, b: Locale): Int {
-			return if (a === b) {
-				0
-			} else {
-				val indexA = deviceLocales.indexOf(a.language)
-				val indexB = deviceLocales.indexOf(b.language)
-				if (indexA == -1 && indexB == -1) {
-					compareValues(a.language, b.language)
-				} else {
-					-2 - (indexA - indexB)
-				}
-			}
-		}
-	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/settings/RootSettingsViewModel.kt

@@ -4,7 +4,6 @@ import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.SharingStarted
-import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.flow.stateIn
 import kotlinx.coroutines.plus
 import org.koitharu.kotatsu.core.ui.BaseViewModel
@@ -18,7 +17,6 @@ class RootSettingsViewModel @Inject constructor(
 
 	val totalSourcesCount = sourcesRepository.allMangaSources.size
 
-	val enabledSourcesCount = sourcesRepository.observeEnabledSources()
-		.map { it.size }
+	val enabledSourcesCount = sourcesRepository.observeEnabledSourcesCount()
 		.stateIn(viewModelScope + Dispatchers.Default, SharingStarted.Eagerly, -1)
 }

app/src/main/kotlin/org/koitharu/kotatsu/settings/SettingsActivity.kt

@@ -31,7 +31,8 @@ import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.settings.about.AboutSettingsFragment
 import org.koitharu.kotatsu.settings.about.AppUpdateDialog
 import org.koitharu.kotatsu.settings.sources.SourceSettingsFragment
-import org.koitharu.kotatsu.settings.sources.SourcesManageFragment
+import org.koitharu.kotatsu.settings.sources.SourcesSettingsFragment
+import org.koitharu.kotatsu.settings.sources.manage.SourcesManageFragment
 import org.koitharu.kotatsu.settings.tracker.TrackerSettingsFragment
 import org.koitharu.kotatsu.settings.userdata.UserDataSettingsFragment
 
@@ -153,6 +154,7 @@ class SettingsActivity :
 			ACTION_SUGGESTIONS -> SuggestionsSettingsFragment()
 			ACTION_HISTORY -> UserDataSettingsFragment()
 			ACTION_TRACKER -> TrackerSettingsFragment()
+			ACTION_SOURCES -> SourcesSettingsFragment()
 			ACTION_MANAGE_DOWNLOADS -> DownloadsSettingsFragment()
 			ACTION_SOURCE -> SourceSettingsFragment.newInstance(
 				intent.getSerializableExtraCompat(EXTRA_SOURCE) as? MangaSource ?: MangaSource.LOCAL,
@@ -182,6 +184,7 @@ class SettingsActivity :
 		private const val ACTION_TRACKER = "${BuildConfig.APPLICATION_ID}.action.MANAGE_TRACKER"
 		private const val ACTION_HISTORY = "${BuildConfig.APPLICATION_ID}.action.MANAGE_HISTORY"
 		private const val ACTION_SOURCE = "${BuildConfig.APPLICATION_ID}.action.MANAGE_SOURCE_SETTINGS"
+		private const val ACTION_SOURCES = "${BuildConfig.APPLICATION_ID}.action.MANAGE_SOURCES"
 		private const val ACTION_MANAGE_SOURCES = "${BuildConfig.APPLICATION_ID}.action.MANAGE_SOURCES_LIST"
 		private const val ACTION_MANAGE_DOWNLOADS = "${BuildConfig.APPLICATION_ID}.action.MANAGE_DOWNLOADS"
 		private const val EXTRA_SOURCE = "source"
@@ -206,6 +209,10 @@ class SettingsActivity :
 			Intent(context, SettingsActivity::class.java)
 				.setAction(ACTION_HISTORY)
 
+		fun newSourcesSettingsIntent(context: Context) =
+			Intent(context, SettingsActivity::class.java)
+				.setAction(ACTION_SOURCES)
+
 		fun newManageSourcesIntent(context: Context) =
 			Intent(context, SettingsActivity::class.java)
 				.setAction(ACTION_MANAGE_SOURCES)

app/src/main/kotlin/org/koitharu/kotatsu/settings/backup/BackupDialogFragment.kt

@@ -16,6 +16,7 @@ import org.koitharu.kotatsu.core.ui.AlertDialogFragment
 import org.koitharu.kotatsu.core.util.ext.getDisplayMessage
 import org.koitharu.kotatsu.core.util.ext.observe
 import org.koitharu.kotatsu.core.util.ext.observeEvent
+import org.koitharu.kotatsu.core.util.ext.tryLaunch
 import org.koitharu.kotatsu.databinding.DialogProgressBinding
 import java.io.File
 import java.io.FileOutputStream
@@ -28,7 +29,7 @@ class BackupDialogFragment : AlertDialogFragment<DialogProgressBinding>() {
 
 	private var backup: File? = null
 	private val saveFileContract = registerForActivityResult(
-		ActivityResultContracts.CreateDocument("*/*"),
+		ActivityResultContracts.CreateDocument("application/zip"),
 	) { uri ->
 		val file = backup
 		if (uri != null && file != null) {
@@ -81,7 +82,10 @@ class BackupDialogFragment : AlertDialogFragment<DialogProgressBinding>() {
 
 	private fun onBackupDone(file: File) {
 		this.backup = file
-		saveFileContract.launch(file.name)
+		if (!saveFileContract.tryLaunch(file.name)) {
+			Toast.makeText(requireContext(), R.string.operation_not_supported, Toast.LENGTH_SHORT).show()
+			dismiss()
+		}
 	}
 
 	private fun saveBackup(file: File, output: Uri) {
@@ -91,7 +95,7 @@ class BackupDialogFragment : AlertDialogFragment<DialogProgressBinding>() {
 					it.write(file.readBytes())
 				}
 			}
-			Toast.makeText(requireContext(), R.string.backup_saved, Toast.LENGTH_LONG).show()
+			Toast.makeText(requireContext(), R.string.backup_saved, Toast.LENGTH_SHORT).show()
 			dismiss()
 		} catch (e: InterruptedException) {
 			throw e

app/src/main/kotlin/org/koitharu/kotatsu/settings/backup/BackupViewModel.kt

@@ -43,7 +43,6 @@ class BackupViewModel @Inject constructor(
 
 				backup.finish()
 				progress.value = 1f
-				backup.close()
 				backup.file
 			}
 			onBackupDone.call(file)

app/src/main/kotlin/org/koitharu/kotatsu/settings/backup/PeriodicalBackupSettingsFragment.kt

@@ -0,0 +1,98 @@
+package org.koitharu.kotatsu.settings.backup
+
+import android.content.Context
+import android.content.Intent
+import android.net.Uri
+import android.os.Bundle
+import android.view.View
+import androidx.activity.result.ActivityResultCallback
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.documentfile.provider.DocumentFile
+import androidx.preference.Preference
+import dagger.hilt.android.AndroidEntryPoint
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.core.backup.DIR_BACKUPS
+import org.koitharu.kotatsu.core.prefs.AppSettings
+import org.koitharu.kotatsu.core.ui.BasePreferenceFragment
+import org.koitharu.kotatsu.core.util.ext.resolveFile
+import org.koitharu.kotatsu.core.util.ext.tryLaunch
+import org.koitharu.kotatsu.core.util.ext.viewLifecycleScope
+import java.io.File
+import java.text.SimpleDateFormat
+import javax.inject.Inject
+
+@AndroidEntryPoint
+class PeriodicalBackupSettingsFragment : BasePreferenceFragment(R.string.periodic_backups),
+	ActivityResultCallback<Uri?> {
+
+	@Inject
+	lateinit var scheduler: PeriodicalBackupWorker.Scheduler
+
+	private val outputSelectCall = registerForActivityResult(
+		ActivityResultContracts.OpenDocumentTree(),
+		this,
+	)
+
+	override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
+		addPreferencesFromResource(R.xml.pref_backup_periodic)
+	}
+
+	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+		super.onViewCreated(view, savedInstanceState)
+		bindOutputSummary()
+		bindLastBackupInfo()
+	}
+
+	override fun onPreferenceTreeClick(preference: Preference): Boolean {
+		return when (preference.key) {
+			AppSettings.KEY_BACKUP_PERIODICAL_OUTPUT -> outputSelectCall.tryLaunch(null)
+			else -> super.onPreferenceTreeClick(preference)
+		}
+	}
+
+	override fun onActivityResult(result: Uri?) {
+		if (result != null) {
+			val takeFlags: Int = Intent.FLAG_GRANT_READ_URI_PERMISSION or Intent.FLAG_GRANT_WRITE_URI_PERMISSION
+			context?.contentResolver?.takePersistableUriPermission(result, takeFlags)
+			settings.periodicalBackupOutput = result
+			bindOutputSummary()
+		}
+	}
+
+	private fun bindOutputSummary() {
+		val preference = findPreference<Preference>(AppSettings.KEY_BACKUP_PERIODICAL_OUTPUT) ?: return
+		viewLifecycleScope.launch {
+			preference.summary = withContext(Dispatchers.Default) {
+				val value = settings.periodicalBackupOutput
+				value?.toUserFriendlyString(preference.context) ?: preference.context.run {
+					getExternalFilesDir(DIR_BACKUPS) ?: File(filesDir, DIR_BACKUPS)
+				}.path
+			}
+		}
+	}
+
+	private fun bindLastBackupInfo() {
+		val preference = findPreference<Preference>(AppSettings.KEY_BACKUP_PERIODICAL_LAST) ?: return
+		viewLifecycleScope.launch {
+			val lastDate = withContext(Dispatchers.Default) {
+				scheduler.getLastSuccessfulBackup()
+			}
+			preference.summary = lastDate?.let {
+				val format = SimpleDateFormat.getDateTimeInstance(SimpleDateFormat.MEDIUM, SimpleDateFormat.SHORT)
+				preference.context.getString(R.string.last_successful_backup, format.format(it))
+			}
+			preference.isVisible = lastDate != null
+		}
+	}
+
+	private fun Uri.toUserFriendlyString(context: Context): String {
+		val df = DocumentFile.fromTreeUri(context, this)
+		if (df?.canWrite() != true) {
+			return context.getString(R.string.invalid_value_message)
+		}
+		return resolveFile(context)?.path ?: toString()
+	}
+}

app/src/main/kotlin/org/koitharu/kotatsu/settings/backup/PeriodicalBackupWorker.kt

@@ -0,0 +1,111 @@
+package org.koitharu.kotatsu.settings.backup
+
+import android.content.Context
+import android.os.Build
+import androidx.documentfile.provider.DocumentFile
+import androidx.hilt.work.HiltWorker
+import androidx.work.Constraints
+import androidx.work.CoroutineWorker
+import androidx.work.ExistingPeriodicWorkPolicy
+import androidx.work.PeriodicWorkRequestBuilder
+import androidx.work.WorkInfo
+import androidx.work.WorkManager
+import androidx.work.WorkerParameters
+import androidx.work.await
+import androidx.work.workDataOf
+import dagger.Reusable
+import dagger.assisted.Assisted
+import dagger.assisted.AssistedInject
+import org.koitharu.kotatsu.core.backup.BackupRepository
+import org.koitharu.kotatsu.core.backup.BackupZipOutput
+import org.koitharu.kotatsu.core.prefs.AppSettings
+import org.koitharu.kotatsu.core.util.ext.awaitUniqueWorkInfoByName
+import org.koitharu.kotatsu.core.util.ext.deleteAwait
+import org.koitharu.kotatsu.settings.work.PeriodicWorkScheduler
+import java.util.Date
+import java.util.concurrent.TimeUnit
+import javax.inject.Inject
+
+@HiltWorker
+class PeriodicalBackupWorker @AssistedInject constructor(
+	@Assisted appContext: Context,
+	@Assisted params: WorkerParameters,
+	private val repository: BackupRepository,
+	private val settings: AppSettings,
+) : CoroutineWorker(appContext, params) {
+
+	override suspend fun doWork(): Result {
+		val resultData = workDataOf(DATA_TIMESTAMP to Date().time)
+		val file = BackupZipOutput(applicationContext).use { backup ->
+			backup.put(repository.createIndex())
+			backup.put(repository.dumpHistory())
+			backup.put(repository.dumpCategories())
+			backup.put(repository.dumpFavourites())
+			backup.put(repository.dumpBookmarks())
+			backup.put(repository.dumpSettings())
+			backup.finish()
+			backup.file
+		}
+		val dirUri = settings.periodicalBackupOutput ?: return Result.success(resultData)
+		val target = DocumentFile.fromTreeUri(applicationContext, dirUri)
+			?.createFile("application/zip", file.nameWithoutExtension)
+			?.uri ?: return Result.failure()
+		applicationContext.contentResolver.openOutputStream(target, "wt")?.use { output ->
+			file.inputStream().copyTo(output)
+		} ?: return Result.failure()
+		file.deleteAwait()
+		return Result.success(resultData)
+	}
+
+	@Reusable
+	class Scheduler @Inject constructor(
+		private val workManager: WorkManager,
+		private val settings: AppSettings,
+	) : PeriodicWorkScheduler {
+
+		override suspend fun schedule() {
+			val constraints = Constraints.Builder()
+				.setRequiresStorageNotLow(true)
+			if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+				constraints.setRequiresDeviceIdle(true)
+			}
+			val request = PeriodicWorkRequestBuilder<PeriodicalBackupWorker>(
+				settings.periodicalBackupFrequency,
+				TimeUnit.DAYS,
+			).setConstraints(constraints.build())
+				.keepResultsForAtLeast(20, TimeUnit.DAYS)
+				.addTag(TAG)
+				.build()
+			workManager
+				.enqueueUniquePeriodicWork(TAG, ExistingPeriodicWorkPolicy.UPDATE, request)
+				.await()
+		}
+
+		override suspend fun unschedule() {
+			workManager
+				.cancelUniqueWork(TAG)
+				.await()
+		}
+
+		override suspend fun isScheduled(): Boolean {
+			return workManager
+				.awaitUniqueWorkInfoByName(TAG)
+				.any { !it.state.isFinished }
+		}
+
+		suspend fun getLastSuccessfulBackup(): Date? {
+			return workManager
+				.awaitUniqueWorkInfoByName(TAG)
+				.lastOrNull { x -> x.state == WorkInfo.State.SUCCEEDED }
+				?.outputData
+				?.getLong(DATA_TIMESTAMP, 0)
+				?.let { if (it != 0L) Date(it) else null }
+		}
+	}
+
+	private companion object {
+
+		const val TAG = "backups"
+		const val DATA_TIMESTAMP = "ts"
+	}
+}

app/src/main/kotlin/org/koitharu/kotatsu/settings/newsources/NewSourcesDialogFragment.kt

@@ -65,8 +65,6 @@ class NewSourcesDialogFragment :
 		viewModel.onItemEnabledChanged(item, isEnabled)
 	}
 
-	override fun onHeaderClick(header: SourceConfigItem.LocaleGroup) = Unit
-
 	override fun onCloseTip(tip: SourceConfigItem.Tip) = Unit
 
 	companion object {

app/src/main/kotlin/org/koitharu/kotatsu/settings/newsources/NewSourcesViewModel.kt

@@ -8,7 +8,6 @@ import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.flow.stateIn
 import kotlinx.coroutines.plus
-import org.koitharu.kotatsu.core.model.getLocaleTitle
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.ui.BaseViewModel
 import org.koitharu.kotatsu.explore.data.MangaSourcesRepository
@@ -35,7 +34,6 @@ class NewSourcesViewModel @Inject constructor(
 					SourceConfigItem.SourceItem(
 						source = source,
 						isEnabled = enabled,
-						summary = source.getLocaleTitle(),
 						isDraggable = false,
 						isAvailable = !skipNsfw || source.contentType != ContentType.HENTAI,
 					)

app/src/main/kotlin/org/koitharu/kotatsu/settings/sources/SourcesSettingsFragment.kt

@@ -0,0 +1,63 @@
+package org.koitharu.kotatsu.settings.sources
+
+import android.content.Intent
+import android.os.Bundle
+import android.view.View
+import androidx.fragment.app.viewModels
+import androidx.preference.ListPreference
+import androidx.preference.Preference
+import dagger.hilt.android.AndroidEntryPoint
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.core.prefs.AppSettings
+import org.koitharu.kotatsu.core.ui.BasePreferenceFragment
+import org.koitharu.kotatsu.core.util.ext.observe
+import org.koitharu.kotatsu.core.util.ext.setDefaultValueCompat
+import org.koitharu.kotatsu.explore.data.SourcesSortOrder
+import org.koitharu.kotatsu.parsers.util.names
+import org.koitharu.kotatsu.settings.sources.catalog.SourcesCatalogActivity
+
+@AndroidEntryPoint
+class SourcesSettingsFragment : BasePreferenceFragment(R.string.remote_sources) {
+
+	private val viewModel by viewModels<SourcesSettingsViewModel>()
+
+	override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
+		addPreferencesFromResource(R.xml.pref_sources)
+		findPreference<ListPreference>(AppSettings.KEY_SOURCES_ORDER)?.run {
+			entryValues = SourcesSortOrder.entries.names()
+			entries = SourcesSortOrder.entries.map { context.getString(it.titleResId) }.toTypedArray()
+			setDefaultValueCompat(SourcesSortOrder.MANUAL.name)
+		}
+	}
+
+	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+		super.onViewCreated(view, savedInstanceState)
+		findPreference<Preference>(AppSettings.KEY_REMOTE_SOURCES)?.let { pref ->
+			viewModel.enabledSourcesCount.observe(viewLifecycleOwner) {
+				pref.summary = if (it >= 0) {
+					resources.getQuantityString(R.plurals.items, it, it)
+				} else {
+					null
+				}
+			}
+		}
+		findPreference<Preference>(AppSettings.KEY_SOURCES_CATALOG)?.let { pref ->
+			viewModel.availableSourcesCount.observe(viewLifecycleOwner) {
+				pref.summary = if (it >= 0) {
+					getString(R.string.available_d, it)
+				} else {
+					null
+				}
+			}
+		}
+	}
+
+	override fun onPreferenceTreeClick(preference: Preference): Boolean = when (preference.key) {
+		AppSettings.KEY_SOURCES_CATALOG -> {
+			startActivity(Intent(preference.context, SourcesCatalogActivity::class.java))
+			true
+		}
+
+		else -> super.onPreferenceTreeClick(preference)
+	}
+}

app/src/main/kotlin/org/koitharu/kotatsu/settings/sources/SourcesSettingsViewModel.kt

@@ -0,0 +1,25 @@
+package org.koitharu.kotatsu.settings.sources
+
+import androidx.lifecycle.viewModelScope
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.SharingStarted
+import kotlinx.coroutines.flow.stateIn
+import kotlinx.coroutines.plus
+import org.koitharu.kotatsu.core.ui.BaseViewModel
+import org.koitharu.kotatsu.explore.data.MangaSourcesRepository
+import javax.inject.Inject
+
+@HiltViewModel
+class SourcesSettingsViewModel @Inject constructor(
+	private val sourcesRepository: MangaSourcesRepository,
+) : BaseViewModel() {
+
+	val totalSourcesCount = sourcesRepository.allMangaSources.size
+
+	val enabledSourcesCount = sourcesRepository.observeEnabledSourcesCount()
+		.stateIn(viewModelScope + Dispatchers.Default, SharingStarted.Eagerly, -1)
+
+	val availableSourcesCount = sourcesRepository.observeAvailableSourcesCount()
+		.stateIn(viewModelScope + Dispatchers.Default, SharingStarted.Eagerly, -1)
+}

app/src/main/kotlin/org/koitharu/kotatsu/settings/sources/adapter/SourceConfigAdapter.kt

@@ -13,8 +13,6 @@ class SourceConfigAdapter(
 
 	init {
 		with(delegatesManager) {
-			addDelegate(sourceConfigHeaderDelegate())
-			addDelegate(sourceConfigGroupDelegate(listener))
 			addDelegate(sourceConfigItemDelegate2(listener, coil, lifecycleOwner))
 			addDelegate(sourceConfigEmptySearchDelegate())
 			addDelegate(sourceConfigTipDelegate(listener))

app/src/main/kotlin/org/koitharu/kotatsu/settings/sources/adapter/SourceConfigAdapterDelegates.kt

@@ -18,6 +18,7 @@ import coil.ImageLoader
 import com.hannesdorfmann.adapterdelegates4.dsl.adapterDelegate
 import com.hannesdorfmann.adapterdelegates4.dsl.adapterDelegateViewBinding
 import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.core.model.getSummary
 import org.koitharu.kotatsu.core.parser.favicon.faviconUri
 import org.koitharu.kotatsu.core.ui.image.FaviconDrawable
 import org.koitharu.kotatsu.core.ui.list.OnTipCloseListener
@@ -26,144 +27,104 @@ import org.koitharu.kotatsu.core.util.ext.enqueueWith
 import org.koitharu.kotatsu.core.util.ext.getThemeColor
 import org.koitharu.kotatsu.core.util.ext.newImageRequest
 import org.koitharu.kotatsu.core.util.ext.source
-import org.koitharu.kotatsu.core.util.ext.textAndVisible
-import org.koitharu.kotatsu.databinding.ItemExpandableBinding
-import org.koitharu.kotatsu.databinding.ItemFilterHeaderBinding
 import org.koitharu.kotatsu.databinding.ItemSourceConfigBinding
 import org.koitharu.kotatsu.databinding.ItemSourceConfigCheckableBinding
 import org.koitharu.kotatsu.databinding.ItemTipBinding
 import org.koitharu.kotatsu.settings.sources.model.SourceConfigItem
 
-fun sourceConfigHeaderDelegate() =
-	adapterDelegateViewBinding<SourceConfigItem.Header, SourceConfigItem, ItemFilterHeaderBinding>(
-		{ layoutInflater, parent ->
-			ItemFilterHeaderBinding.inflate(
-				layoutInflater,
-				parent,
-				false,
-			)
-		},
-	) {
-
-		bind {
-			binding.textViewTitle.setText(item.titleResId)
-		}
-	}
-
-fun sourceConfigGroupDelegate(
-	listener: SourceConfigListener,
-) =
-	adapterDelegateViewBinding<SourceConfigItem.LocaleGroup, SourceConfigItem, ItemExpandableBinding>(
-		{ layoutInflater, parent -> ItemExpandableBinding.inflate(layoutInflater, parent, false) },
-	) {
-
-		binding.root.setOnClickListener {
-			listener.onHeaderClick(item)
-		}
-
-		bind {
-			binding.root.text = item.title ?: getString(R.string.various_languages)
-			binding.root.isChecked = item.isExpanded
-		}
-	}
-
 fun sourceConfigItemCheckableDelegate(
 	listener: SourceConfigListener,
 	coil: ImageLoader,
 	lifecycleOwner: LifecycleOwner,
-) =
-	adapterDelegateViewBinding<SourceConfigItem.SourceItem, SourceConfigItem, ItemSourceConfigCheckableBinding>(
-		{ layoutInflater, parent ->
-			ItemSourceConfigCheckableBinding.inflate(
-				layoutInflater,
-				parent,
-				false,
-			)
-		},
-	) {
+) = adapterDelegateViewBinding<SourceConfigItem.SourceItem, SourceConfigItem, ItemSourceConfigCheckableBinding>(
+	{ layoutInflater, parent ->
+		ItemSourceConfigCheckableBinding.inflate(
+			layoutInflater,
+			parent,
+			false,
+		)
+	},
+) {
 
-		binding.switchToggle.setOnCheckedChangeListener { _, isChecked ->
-			listener.onItemEnabledChanged(item, isChecked)
+	binding.switchToggle.setOnCheckedChangeListener { _, isChecked ->
+		listener.onItemEnabledChanged(item, isChecked)
+	}
+
+	bind {
+		binding.textViewTitle.text = if (item.isNsfw) {
+			buildSpannedString {
+				append(item.source.title)
+				append(' ')
+				appendNsfwLabel(context)
+			}
+		} else {
+			item.source.title
 		}
-
-		bind {
-			binding.textViewTitle.text = if (item.isNsfw) {
-				buildSpannedString {
-					append(item.source.title)
-					append(' ')
-					appendNsfwLabel(context)
-				}
-			} else {
-				item.source.title
-			}
-			binding.switchToggle.isChecked = item.isEnabled
-			binding.switchToggle.isEnabled = item.isAvailable
-			binding.textViewDescription.textAndVisible = item.summary
-			val fallbackIcon =
-				FaviconDrawable(context, R.style.FaviconDrawable_Small, item.source.name)
-			binding.imageViewIcon.newImageRequest(lifecycleOwner, item.source.faviconUri())?.run {
-				crossfade(context)
-				error(fallbackIcon)
-				placeholder(fallbackIcon)
-				fallback(fallbackIcon)
-				source(item.source)
-				enqueueWith(coil)
-			}
+		binding.switchToggle.isChecked = item.isEnabled
+		binding.switchToggle.isEnabled = item.isAvailable
+		binding.textViewDescription.text = item.source.getSummary(context)
+		val fallbackIcon = FaviconDrawable(context, R.style.FaviconDrawable_Small, item.source.name)
+		binding.imageViewIcon.newImageRequest(lifecycleOwner, item.source.faviconUri())?.run {
+			crossfade(context)
+			error(fallbackIcon)
+			placeholder(fallbackIcon)
+			fallback(fallbackIcon)
+			source(item.source)
+			enqueueWith(coil)
 		}
 	}
+}
 
 fun sourceConfigItemDelegate2(
 	listener: SourceConfigListener,
 	coil: ImageLoader,
 	lifecycleOwner: LifecycleOwner,
-) =
-	adapterDelegateViewBinding<SourceConfigItem.SourceItem, SourceConfigItem, ItemSourceConfigBinding>(
-		{ layoutInflater, parent ->
-			ItemSourceConfigBinding.inflate(
-				layoutInflater,
-				parent,
-				false,
-			)
-		},
-	) {
+) = adapterDelegateViewBinding<SourceConfigItem.SourceItem, SourceConfigItem, ItemSourceConfigBinding>(
+	{ layoutInflater, parent ->
+		ItemSourceConfigBinding.inflate(
+			layoutInflater,
+			parent,
+			false,
+		)
+	},
+) {
 
-		val eventListener = View.OnClickListener { v ->
-			when (v.id) {
-				R.id.imageView_add -> listener.onItemEnabledChanged(item, true)
-				R.id.imageView_remove -> listener.onItemEnabledChanged(item, false)
-				R.id.imageView_menu -> showSourceMenu(v, item, listener)
-			}
-		}
-		binding.imageViewRemove.setOnClickListener(eventListener)
-		binding.imageViewAdd.setOnClickListener(eventListener)
-		binding.imageViewMenu.setOnClickListener(eventListener)
-
-		bind {
-			binding.textViewTitle.text = if (item.isNsfw) {
-				buildSpannedString {
-					append(item.source.title)
-					append(' ')
-					appendNsfwLabel(context)
-				}
-			} else {
-				item.source.title
-			}
-			binding.imageViewAdd.isGone = item.isEnabled || !item.isAvailable
-			binding.imageViewRemove.isVisible = item.isEnabled
-			binding.imageViewMenu.isVisible = item.isEnabled
-			binding.textViewDescription.textAndVisible = item.summary
-			val fallbackIcon =
-				FaviconDrawable(context, R.style.FaviconDrawable_Small, item.source.name)
-			binding.imageViewIcon.newImageRequest(lifecycleOwner, item.source.faviconUri())?.run {
-				crossfade(context)
-				error(fallbackIcon)
-				placeholder(fallbackIcon)
-				fallback(fallbackIcon)
-				source(item.source)
-				enqueueWith(coil)
-			}
+	val eventListener = View.OnClickListener { v ->
+		when (v.id) {
+			R.id.imageView_add -> listener.onItemEnabledChanged(item, true)
+			R.id.imageView_remove -> listener.onItemEnabledChanged(item, false)
+			R.id.imageView_menu -> showSourceMenu(v, item, listener)
 		}
 	}
+	binding.imageViewRemove.setOnClickListener(eventListener)
+	binding.imageViewAdd.setOnClickListener(eventListener)
+	binding.imageViewMenu.setOnClickListener(eventListener)
+
+	bind {
+		binding.textViewTitle.text = if (item.isNsfw) {
+			buildSpannedString {
+				append(item.source.title)
+				append(' ')
+				appendNsfwLabel(context)
+			}
+		} else {
+			item.source.title
+		}
+		binding.imageViewAdd.isGone = item.isEnabled || !item.isAvailable
+		binding.imageViewRemove.isVisible = item.isEnabled
+		binding.imageViewMenu.isVisible = item.isEnabled
+		binding.textViewDescription.text = item.source.getSummary(context)
+		val fallbackIcon = FaviconDrawable(context, R.style.FaviconDrawable_Small, item.source.name)
+		binding.imageViewIcon.newImageRequest(lifecycleOwner, item.source.faviconUri())?.run {
+			crossfade(context)
+			error(fallbackIcon)
+			placeholder(fallbackIcon)
+			fallback(fallbackIcon)
+			source(item.source)
+			enqueueWith(coil)
+		}
+	}
+}
 
 fun sourceConfigTipDelegate(
 	listener: OnTipCloseListener<SourceConfigItem.Tip>,
@@ -208,6 +169,7 @@ private fun showSourceMenu(
 	menu.inflate(R.menu.popup_source_config)
 	menu.menu.findItem(R.id.action_shortcut)
 		?.isVisible = ShortcutManagerCompat.isRequestPinShortcutSupported(anchor.context)
+	menu.menu.findItem(R.id.action_lift)?.isVisible = item.isDraggable
 	menu.setOnMenuItemClickListener {
 		when (it.itemId) {
 			R.id.action_settings -> listener.onItemSettingsClick(item)

app/src/main/kotlin/org/koitharu/kotatsu/settings/sources/adapter/SourceConfigListener.kt

@@ -12,6 +12,4 @@ interface SourceConfigListener : OnTipCloseListener<SourceConfigItem.Tip> {
 	fun onItemShortcutClick(item: SourceConfigItem.SourceItem)
 
 	fun onItemEnabledChanged(item: SourceConfigItem.SourceItem, isEnabled: Boolean)
-
-	fun onHeaderClick(header: SourceConfigItem.LocaleGroup)
 }

app/src/main/kotlin/org/koitharu/kotatsu/settings/sources/catalog/SourceCatalogItem.kt

@@ -0,0 +1,29 @@
+package org.koitharu.kotatsu.settings.sources.catalog
+
+import androidx.annotation.DrawableRes
+import androidx.annotation.StringRes
+import org.koitharu.kotatsu.list.ui.model.ListModel
+import org.koitharu.kotatsu.parsers.model.MangaSource
+
+sealed interface SourceCatalogItem : ListModel {
+
+	data class Source(
+		val source: MangaSource
+	) : SourceCatalogItem {
+
+		override fun areItemsTheSame(other: ListModel): Boolean {
+			return other is Source && other.source == source
+		}
+	}
+
+	data class Hint(
+		@DrawableRes val icon: Int,
+		@StringRes val title: Int,
+		@StringRes val text: Int,
+	) : SourceCatalogItem {
+
+		override fun areItemsTheSame(other: ListModel): Boolean {
+			return other is Hint && other.title == title
+		}
+	}
+}

app/src/main/kotlin/org/koitharu/kotatsu/settings/sources/catalog/SourceCatalogItemAD.kt

@@ -0,0 +1,72 @@
+package org.koitharu.kotatsu.settings.sources.catalog
+
+import androidx.core.text.buildSpannedString
+import androidx.core.view.isVisible
+import androidx.lifecycle.LifecycleOwner
+import coil.ImageLoader
+import com.hannesdorfmann.adapterdelegates4.dsl.adapterDelegateViewBinding
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.core.model.isNsfw
+import org.koitharu.kotatsu.core.parser.favicon.faviconUri
+import org.koitharu.kotatsu.core.ui.image.FaviconDrawable
+import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
+import org.koitharu.kotatsu.core.util.ext.crossfade
+import org.koitharu.kotatsu.core.util.ext.enqueueWith
+import org.koitharu.kotatsu.core.util.ext.newImageRequest
+import org.koitharu.kotatsu.core.util.ext.setTextAndVisible
+import org.koitharu.kotatsu.core.util.ext.source
+import org.koitharu.kotatsu.databinding.ItemEmptyHintBinding
+import org.koitharu.kotatsu.databinding.ItemSourceCatalogBinding
+import org.koitharu.kotatsu.settings.sources.adapter.appendNsfwLabel
+
+fun sourceCatalogItemSourceAD(
+	coil: ImageLoader,
+	lifecycleOwner: LifecycleOwner,
+	listener: OnListItemClickListener<SourceCatalogItem.Source>
+) = adapterDelegateViewBinding<SourceCatalogItem.Source, SourceCatalogItem, ItemSourceCatalogBinding>(
+	{ layoutInflater, parent ->
+		ItemSourceCatalogBinding.inflate(layoutInflater, parent, false)
+	},
+) {
+
+	binding.imageViewAdd.setOnClickListener { v ->
+		listener.onItemClick(item, v)
+	}
+
+	bind {
+		binding.textViewTitle.text = if (item.source.isNsfw()) {
+			buildSpannedString {
+				append(item.source.title)
+				append(' ')
+				appendNsfwLabel(context)
+			}
+		} else {
+			item.source.title
+		}
+		val fallbackIcon = FaviconDrawable(context, R.style.FaviconDrawable_Small, item.source.name)
+		binding.imageViewIcon.newImageRequest(lifecycleOwner, item.source.faviconUri())?.run {
+			crossfade(context)
+			error(fallbackIcon)
+			placeholder(fallbackIcon)
+			fallback(fallbackIcon)
+			source(item.source)
+			enqueueWith(coil)
+		}
+	}
+}
+
+fun sourceCatalogItemHintAD(
+	coil: ImageLoader,
+	lifecycleOwner: LifecycleOwner,
+) = adapterDelegateViewBinding<SourceCatalogItem.Hint, SourceCatalogItem, ItemEmptyHintBinding>(
+	{ inflater, parent -> ItemEmptyHintBinding.inflate(inflater, parent, false) },
+) {
+
+	binding.buttonRetry.isVisible = false
+
+	bind {
+		binding.icon.newImageRequest(lifecycleOwner, item.icon)?.enqueueWith(coil)
+		binding.textPrimary.setText(item.title)
+		binding.textSecondary.setTextAndVisible(item.text)
+	}
+}

app/src/main/kotlin/org/koitharu/kotatsu/settings/sources/catalog/SourcesCatalogActivity.kt

@@ -0,0 +1,107 @@
+package org.koitharu.kotatsu.settings.sources.catalog
+
+import android.os.Bundle
+import android.view.View
+import androidx.activity.viewModels
+import androidx.core.graphics.Insets
+import androidx.core.view.updatePadding
+import coil.ImageLoader
+import com.google.android.material.appbar.AppBarLayout
+import com.google.android.material.tabs.TabLayout
+import dagger.hilt.android.AndroidEntryPoint
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.core.model.titleResId
+import org.koitharu.kotatsu.core.ui.BaseActivity
+import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
+import org.koitharu.kotatsu.core.ui.util.ReversibleActionObserver
+import org.koitharu.kotatsu.core.util.ext.firstVisibleItemPosition
+import org.koitharu.kotatsu.core.util.ext.observe
+import org.koitharu.kotatsu.core.util.ext.observeEvent
+import org.koitharu.kotatsu.databinding.ActivitySourcesCatalogBinding
+import org.koitharu.kotatsu.main.ui.owners.AppBarOwner
+import org.koitharu.kotatsu.parsers.model.ContentType
+import org.koitharu.kotatsu.parsers.util.toTitleCase
+import java.util.Locale
+import javax.inject.Inject
+
+@AndroidEntryPoint
+class SourcesCatalogActivity : BaseActivity<ActivitySourcesCatalogBinding>(),
+	TabLayout.OnTabSelectedListener,
+	OnListItemClickListener<SourceCatalogItem.Source>,
+	AppBarOwner {
+
+	@Inject
+	lateinit var coil: ImageLoader
+
+	override val appBar: AppBarLayout
+		get() = viewBinding.appbar
+
+	private val viewModel by viewModels<SourcesCatalogViewModel>()
+
+	override fun onCreate(savedInstanceState: Bundle?) {
+		super.onCreate(savedInstanceState)
+		setContentView(ActivitySourcesCatalogBinding.inflate(layoutInflater))
+		supportActionBar?.setDisplayHomeAsUpEnabled(true)
+		initTabs()
+		val sourcesAdapter = SourcesCatalogAdapter(this, coil, this)
+		with(viewBinding.recyclerView) {
+			setHasFixedSize(true)
+			adapter = sourcesAdapter
+		}
+		viewModel.content.observe(this, sourcesAdapter)
+		viewModel.onActionDone.observeEvent(
+			this,
+			ReversibleActionObserver(viewBinding.recyclerView),
+		)
+		viewModel.locale.observe(this) {
+			supportActionBar?.subtitle = it.getLocaleDisplayName()
+		}
+		addMenuProvider(SourcesCatalogMenuProvider(this, viewModel))
+	}
+
+	override fun onWindowInsetsChanged(insets: Insets) {
+		viewBinding.root.updatePadding(
+			left = insets.left,
+			right = insets.right,
+		)
+		viewBinding.recyclerView.updatePadding(
+			bottom = insets.bottom + viewBinding.recyclerView.paddingTop,
+		)
+	}
+
+	override fun onItemClick(item: SourceCatalogItem.Source, view: View) {
+		viewModel.addSource(item.source)
+	}
+
+	override fun onTabSelected(tab: TabLayout.Tab) {
+		viewModel.setContentType(tab.tag as ContentType)
+	}
+
+	override fun onTabUnselected(tab: TabLayout.Tab) = Unit
+
+	override fun onTabReselected(tab: TabLayout.Tab) {
+		viewBinding.recyclerView.firstVisibleItemPosition = 0
+	}
+
+	private fun initTabs() {
+		val tabs = viewBinding.tabs
+		for (type in ContentType.entries) {
+			if (viewModel.isNsfwDisabled && type == ContentType.HENTAI) {
+				continue
+			}
+			val tab = tabs.newTab()
+			tab.setText(type.titleResId)
+			tab.tag = type
+			tabs.addTab(tab)
+		}
+		tabs.addOnTabSelectedListener(this)
+	}
+
+	private fun String?.getLocaleDisplayName(): String {
+		if (this == null) {
+			return getString(R.string.various_languages)
+		}
+		val lc = Locale(this)
+		return lc.getDisplayLanguage(lc).toTitleCase(lc)
+	}
+}

app/src/main/kotlin/org/koitharu/kotatsu/settings/sources/catalog/SourcesCatalogAdapter.kt

@@ -0,0 +1,25 @@
+package org.koitharu.kotatsu.settings.sources.catalog
+
+import android.content.Context
+import androidx.lifecycle.LifecycleOwner
+import coil.ImageLoader
+import org.koitharu.kotatsu.core.ui.BaseListAdapter
+import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
+import org.koitharu.kotatsu.core.ui.list.fastscroll.FastScroller
+import org.koitharu.kotatsu.list.ui.adapter.ListItemType
+
+class SourcesCatalogAdapter(
+	listener: OnListItemClickListener<SourceCatalogItem.Source>,
+	coil: ImageLoader,
+	lifecycleOwner: LifecycleOwner,
+) : BaseListAdapter<SourceCatalogItem>(), FastScroller.SectionIndexer {
+
+	init {
+		addDelegate(ListItemType.CHAPTER, sourceCatalogItemSourceAD(coil, lifecycleOwner, listener))
+		addDelegate(ListItemType.HINT_EMPTY, sourceCatalogItemHintAD(coil, lifecycleOwner))
+	}
+
+	override fun getSectionText(context: Context, position: Int): CharSequence? {
+		return (items.getOrNull(position) as? SourceCatalogItem.Source)?.source?.title?.take(1)
+	}
+}

app/src/main/kotlin/org/koitharu/kotatsu/settings/sources/catalog/SourcesCatalogListProducer.kt

@@ -0,0 +1,103 @@
+package org.koitharu.kotatsu.settings.sources.catalog
+
+import androidx.room.InvalidationTracker
+import dagger.assisted.Assisted
+import dagger.assisted.AssistedFactory
+import dagger.assisted.AssistedInject
+import dagger.hilt.android.ViewModelLifecycle
+import dagger.hilt.android.lifecycle.RetainedLifecycle
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.cancelAndJoin
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.launch
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.core.db.MangaDatabase
+import org.koitharu.kotatsu.core.db.TABLE_SOURCES
+import org.koitharu.kotatsu.core.db.removeObserverAsync
+import org.koitharu.kotatsu.core.util.ext.lifecycleScope
+import org.koitharu.kotatsu.explore.data.MangaSourcesRepository
+import org.koitharu.kotatsu.parsers.model.ContentType
+
+class SourcesCatalogListProducer @AssistedInject constructor(
+	@Assisted private val locale: String?,
+	@Assisted private val contentType: ContentType,
+	@Assisted lifecycle: ViewModelLifecycle,
+	private val repository: MangaSourcesRepository,
+	private val database: MangaDatabase,
+) : InvalidationTracker.Observer(TABLE_SOURCES), RetainedLifecycle.OnClearedListener {
+
+	private val scope = lifecycle.lifecycleScope
+	private var query: String = ""
+	val list = MutableStateFlow(emptyList<SourceCatalogItem>())
+
+	private var job = scope.launch(Dispatchers.Default) {
+		list.value = buildList()
+	}
+
+	init {
+		scope.launch(Dispatchers.Default) {
+			database.invalidationTracker.addObserver(this@SourcesCatalogListProducer)
+		}
+		lifecycle.addOnClearedListener(this)
+	}
+
+	override fun onCleared() {
+		database.invalidationTracker.removeObserverAsync(this)
+	}
+
+	override fun onInvalidated(tables: Set<String>) {
+		val prevJob = job
+		job = scope.launch(Dispatchers.Default) {
+			prevJob.cancelAndJoin()
+			list.update { buildList() }
+		}
+	}
+
+	fun setQuery(value: String) {
+		this.query = value
+		onInvalidated(emptySet())
+	}
+
+	private suspend fun buildList(): List<SourceCatalogItem> {
+		val sources = repository.getDisabledSources().toMutableList()
+		sources.retainAll { it.contentType == contentType && it.locale == locale }
+		if (query.isNotEmpty()) {
+			sources.retainAll { it.title.contains(query, ignoreCase = true) }
+		}
+		return if (sources.isEmpty()) {
+			listOf(
+				if (query.isEmpty()) {
+					SourceCatalogItem.Hint(
+						icon = R.drawable.ic_empty_feed,
+						title = R.string.no_manga_sources,
+						text = R.string.no_manga_sources_catalog_text,
+					)
+				} else {
+					SourceCatalogItem.Hint(
+						icon = R.drawable.ic_empty_feed,
+						title = R.string.nothing_found,
+						text = R.string.no_manga_sources_found,
+					)
+				},
+			)
+		} else {
+			sources.sortBy { it.title }
+			sources.map {
+				SourceCatalogItem.Source(
+					source = it,
+				)
+			}
+		}
+	}
+
+	@AssistedFactory
+	interface Factory {
+
+		fun create(
+			locale: String?,
+			contentType: ContentType,
+			lifecycle: ViewModelLifecycle,
+		): SourcesCatalogListProducer
+	}
+}

app/src/main/kotlin/org/koitharu/kotatsu/settings/sources/catalog/SourcesCatalogMenuProvider.kt

@@ -0,0 +1,74 @@
+package org.koitharu.kotatsu.settings.sources.catalog
+
+import android.app.Activity
+import android.view.Menu
+import android.view.MenuInflater
+import android.view.MenuItem
+import android.view.View
+import androidx.appcompat.widget.PopupMenu
+import androidx.appcompat.widget.SearchView
+import androidx.core.view.MenuProvider
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.main.ui.owners.AppBarOwner
+import org.koitharu.kotatsu.parsers.util.toTitleCase
+
+class SourcesCatalogMenuProvider(
+	private val activity: Activity,
+	private val viewModel: SourcesCatalogViewModel,
+) : MenuProvider,
+	MenuItem.OnActionExpandListener,
+	SearchView.OnQueryTextListener {
+
+	override fun onCreateMenu(menu: Menu, menuInflater: MenuInflater) {
+		menuInflater.inflate(R.menu.opt_sources_catalog, menu)
+		val searchMenuItem = menu.findItem(R.id.action_search)
+		searchMenuItem.setOnActionExpandListener(this)
+		val searchView = searchMenuItem.actionView as SearchView
+		searchView.setOnQueryTextListener(this)
+		searchView.setIconifiedByDefault(false)
+		searchView.queryHint = searchMenuItem.title
+	}
+
+	override fun onMenuItemSelected(menuItem: MenuItem): Boolean = when (menuItem.itemId) {
+		R.id.action_locales -> {
+			showLocalesMenu()
+			true
+		}
+
+		else -> false
+	}
+
+	override fun onMenuItemActionExpand(item: MenuItem): Boolean {
+		(activity as? AppBarOwner)?.appBar?.setExpanded(false, true)
+		return true
+	}
+
+	override fun onMenuItemActionCollapse(item: MenuItem): Boolean {
+		(item.actionView as SearchView).setQuery("", false)
+		return true
+	}
+
+	override fun onQueryTextSubmit(query: String?): Boolean = false
+
+	override fun onQueryTextChange(newText: String?): Boolean {
+		viewModel.performSearch(newText.orEmpty())
+		return true
+	}
+
+	private fun showLocalesMenu() {
+		val locales = viewModel.locales
+		val anchor: View = (activity as AppBarOwner).appBar.let {
+			it.findViewById<View?>(R.id.toolbar) ?: it
+		}
+		val menu = PopupMenu(activity, anchor)
+		for ((i, lc) in locales.withIndex()) {
+			val title = lc?.getDisplayLanguage(lc)?.toTitleCase(lc) ?: activity.getString(R.string.various_languages)
+			menu.menu.add(Menu.NONE, Menu.NONE, i, title)
+		}
+		menu.setOnMenuItemClickListener {
+			viewModel.setLocale(locales.getOrNull(it.order)?.language)
+			true
+		}
+		menu.show()
+	}
+}

app/src/main/kotlin/org/koitharu/kotatsu/settings/sources/catalog/SourcesCatalogViewModel.kt

@@ -0,0 +1,87 @@
+package org.koitharu.kotatsu.settings.sources.catalog
+
+import androidx.lifecycle.viewModelScope
+import dagger.hilt.android.internal.lifecycle.RetainedLifecycleImpl
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.SharingStarted
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.combine
+import kotlinx.coroutines.flow.emptyFlow
+import kotlinx.coroutines.flow.flatMapLatest
+import kotlinx.coroutines.flow.stateIn
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.core.prefs.AppSettings
+import org.koitharu.kotatsu.core.ui.BaseViewModel
+import org.koitharu.kotatsu.core.ui.util.ReversibleAction
+import org.koitharu.kotatsu.core.util.LocaleComparator
+import org.koitharu.kotatsu.core.util.ext.MutableEventFlow
+import org.koitharu.kotatsu.core.util.ext.call
+import org.koitharu.kotatsu.explore.data.MangaSourcesRepository
+import org.koitharu.kotatsu.parsers.model.ContentType
+import org.koitharu.kotatsu.parsers.model.MangaSource
+import org.koitharu.kotatsu.parsers.util.mapToSet
+import java.util.Locale
+import javax.inject.Inject
+
+@HiltViewModel
+class SourcesCatalogViewModel @Inject constructor(
+	private val repository: MangaSourcesRepository,
+	private val listProducerFactory: SourcesCatalogListProducer.Factory,
+	private val settings: AppSettings,
+) : BaseViewModel() {
+
+	private val lifecycle = RetainedLifecycleImpl()
+	private var searchQuery: String = ""
+	val onActionDone = MutableEventFlow<ReversibleAction>()
+	val contentType = MutableStateFlow(ContentType.entries.first())
+	val locales = getLocalesImpl()
+	val locale = MutableStateFlow(locales.firstOrNull()?.language)
+
+	val isNsfwDisabled = settings.isNsfwContentDisabled
+
+	private val listProducer: StateFlow<SourcesCatalogListProducer?> = combine(
+		locale,
+		contentType,
+	) { lc, type ->
+		listProducerFactory.create(lc, type, lifecycle).also {
+			it.setQuery(searchQuery)
+		}
+	}.stateIn(viewModelScope, SharingStarted.Eagerly, null)
+
+	val content = listProducer.flatMapLatest {
+		it?.list ?: emptyFlow()
+	}.stateIn(viewModelScope, SharingStarted.Lazily, emptyList())
+
+	override fun onCleared() {
+		super.onCleared()
+		lifecycle.dispatchOnCleared()
+	}
+
+	fun performSearch(query: String) {
+		searchQuery = query
+		listProducer.value?.setQuery(query)
+	}
+
+	fun setLocale(value: String?) {
+		locale.value = value
+	}
+
+	fun setContentType(value: ContentType) {
+		contentType.value = value
+	}
+
+	fun addSource(source: MangaSource) {
+		launchJob(Dispatchers.Default) {
+			val rollback = repository.setSourceEnabled(source, true)
+			onActionDone.call(ReversibleAction(R.string.source_enabled, rollback))
+		}
+	}
+
+	private fun getLocalesImpl(): List<Locale?> {
+		return repository.allMangaSources
+			.mapToSet { it.locale?.let(::Locale) }
+			.sortedWith(LocaleComparator())
+	}
+}

app/src/main/kotlin/org/koitharu/kotatsu/settings/sources/manage/SourcesListProducer.kt

@@ -1,6 +1,5 @@
-package org.koitharu.kotatsu.settings.sources
+package org.koitharu.kotatsu.settings.sources.manage
 
-import androidx.core.os.LocaleListCompat
 import androidx.room.InvalidationTracker
 import dagger.hilt.android.ViewModelLifecycle
 import dagger.hilt.android.scopes.ViewModelScoped
@@ -15,19 +14,13 @@ import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.launch
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.db.TABLE_SOURCES
-import org.koitharu.kotatsu.core.model.getLocaleTitle
 import org.koitharu.kotatsu.core.model.isNsfw
 import org.koitharu.kotatsu.core.prefs.AppSettings
-import org.koitharu.kotatsu.core.util.AlphanumComparator
 import org.koitharu.kotatsu.core.util.ext.lifecycleScope
-import org.koitharu.kotatsu.core.util.ext.map
 import org.koitharu.kotatsu.core.util.ext.toEnumSet
 import org.koitharu.kotatsu.explore.data.MangaSourcesRepository
-import org.koitharu.kotatsu.parsers.model.MangaSource
-import org.koitharu.kotatsu.parsers.util.toTitleCase
+import org.koitharu.kotatsu.explore.data.SourcesSortOrder
 import org.koitharu.kotatsu.settings.sources.model.SourceConfigItem
-import java.util.Locale
-import java.util.TreeMap
 import javax.inject.Inject
 
 @ViewModelScoped
@@ -39,7 +32,6 @@ class SourcesListProducer @Inject constructor(
 
 	private val scope = lifecycle.lifecycleScope
 	private var query: String = ""
-	private val expanded = HashSet<String?>()
 	val list = MutableStateFlow(emptyList<SourceConfigItem>())
 
 	private var job = scope.launch(Dispatchers.Default) {
@@ -67,27 +59,19 @@ class SourcesListProducer @Inject constructor(
 		onInvalidated(emptySet())
 	}
 
-	fun expandCollapse(group: String?) {
-		if (!expanded.remove(group)) {
-			expanded.add(group)
-		}
-		onInvalidated(emptySet())
-	}
-
 	private suspend fun buildList(): List<SourceConfigItem> {
-		val allSources = repository.allMangaSources
 		val enabledSources = repository.getEnabledSources()
 		val isNsfwDisabled = settings.isNsfwContentDisabled
-		val withTip = settings.isTipEnabled(TIP_REORDER)
+		val isReorderAvailable = settings.sourcesSortOrder == SourcesSortOrder.MANUAL
+		val withTip = isReorderAvailable && settings.isTipEnabled(TIP_REORDER)
 		val enabledSet = enabledSources.toEnumSet()
 		if (query.isNotEmpty()) {
-			return allSources.mapNotNull {
+			return enabledSources.mapNotNull {
 				if (!it.title.contains(query, ignoreCase = true)) {
 					return@mapNotNull null
 				}
 				SourceConfigItem.SourceItem(
 					source = it,
-					summary = it.getLocaleTitle(),
 					isEnabled = it in enabledSet,
 					isDraggable = false,
 					isAvailable = !isNsfwDisabled || !it.isNsfw(),
@@ -96,17 +80,8 @@ class SourcesListProducer @Inject constructor(
 				listOf(SourceConfigItem.EmptySearchResult)
 			}
 		}
-		val map = allSources.groupByTo(TreeMap(LocaleKeyComparator())) {
-			if (it in enabledSet) {
-				KEY_ENABLED
-			} else {
-				it.locale
-			}
-		}
-		map.remove(KEY_ENABLED)
-		val result = ArrayList<SourceConfigItem>(allSources.size + map.size + 2)
+		val result = ArrayList<SourceConfigItem>(enabledSources.size + 1)
 		if (enabledSources.isNotEmpty()) {
-			result += SourceConfigItem.Header(R.string.enabled_sources)
 			if (withTip) {
 				result += SourceConfigItem.Tip(
 					TIP_REORDER,
@@ -117,70 +92,17 @@ class SourcesListProducer @Inject constructor(
 			enabledSources.mapTo(result) {
 				SourceConfigItem.SourceItem(
 					source = it,
-					summary = it.getLocaleTitle(),
 					isEnabled = true,
-					isDraggable = true,
+					isDraggable = isReorderAvailable,
 					isAvailable = false,
 				)
 			}
 		}
-		if (enabledSources.size != allSources.size) {
-			result += SourceConfigItem.Header(R.string.available_sources)
-			val comparator = compareBy<MangaSource, String>(AlphanumComparator()) { it.name }
-			for ((key, list) in map) {
-				list.sortWith(comparator)
-				val isExpanded = key in expanded
-				result += SourceConfigItem.LocaleGroup(
-					localeId = key,
-					title = getLocaleTitle(key),
-					isExpanded = isExpanded,
-				)
-				if (isExpanded) {
-					list.mapTo(result) {
-						SourceConfigItem.SourceItem(
-							source = it,
-							summary = null,
-							isEnabled = false,
-							isDraggable = false,
-							isAvailable = !isNsfwDisabled || !it.isNsfw(),
-						)
-					}
-				}
-			}
-		}
 		return result
 	}
 
-	private class LocaleKeyComparator : Comparator<String?> {
-
-		private val deviceLocales = LocaleListCompat.getAdjustedDefault()
-			.map { it.language }
-
-		override fun compare(a: String?, b: String?): Int {
-			when {
-				a == b -> return 0
-				a == null -> return 1
-				b == null -> return -1
-			}
-			val ai = deviceLocales.indexOf(a!!)
-			val bi = deviceLocales.indexOf(b!!)
-			return when {
-				ai < 0 && bi < 0 -> a.compareTo(b)
-				ai < 0 -> 1
-				bi < 0 -> -1
-				else -> ai.compareTo(bi)
-			}
-		}
-	}
-
 	companion object {
 
-		private fun getLocaleTitle(localeKey: String?): String? {
-			val locale = Locale(localeKey ?: return null)
-			return locale.getDisplayLanguage(locale).toTitleCase(locale)
-		}
-
-		private const val KEY_ENABLED = "!"
 		const val TIP_REORDER = "src_reorder"
 	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/settings/sources/manage/SourcesManageFragment.kt

@@ -1,5 +1,6 @@
-package org.koitharu.kotatsu.settings.sources
+package org.koitharu.kotatsu.settings.sources.manage
 
+import android.content.Intent
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.Menu
@@ -30,8 +31,10 @@ import org.koitharu.kotatsu.core.util.ext.viewLifecycleScope
 import org.koitharu.kotatsu.databinding.FragmentSettingsSourcesBinding
 import org.koitharu.kotatsu.main.ui.owners.AppBarOwner
 import org.koitharu.kotatsu.settings.SettingsActivity
+import org.koitharu.kotatsu.settings.sources.SourceSettingsFragment
 import org.koitharu.kotatsu.settings.sources.adapter.SourceConfigAdapter
 import org.koitharu.kotatsu.settings.sources.adapter.SourceConfigListener
+import org.koitharu.kotatsu.settings.sources.catalog.SourcesCatalogActivity
 import org.koitharu.kotatsu.settings.sources.model.SourceConfigItem
 import javax.inject.Inject
 
@@ -77,14 +80,14 @@ class SourcesManageFragment :
 		viewModel.content.observe(viewLifecycleOwner, sourcesAdapter)
 		viewModel.onActionDone.observeEvent(
 			viewLifecycleOwner,
-			ReversibleActionObserver(binding.recyclerView)
+			ReversibleActionObserver(binding.recyclerView),
 		)
 		addMenuProvider(SourcesMenuProvider())
 	}
 
 	override fun onResume() {
 		super.onResume()
-		activity?.setTitle(R.string.remote_sources)
+		activity?.setTitle(R.string.manage_sources)
 	}
 
 	override fun onDestroyView() {
@@ -119,10 +122,6 @@ class SourcesManageFragment :
 		viewModel.setEnabled(item.source, isEnabled)
 	}
 
-	override fun onHeaderClick(header: SourceConfigItem.LocaleGroup) {
-		viewModel.expandOrCollapse(header.localeId)
-	}
-
 	override fun onCloseTip(tip: SourceConfigItem.Tip) {
 		viewModel.onTipClosed(tip)
 	}
@@ -143,6 +142,11 @@ class SourcesManageFragment :
 		}
 
 		override fun onMenuItemSelected(menuItem: MenuItem): Boolean = when (menuItem.itemId) {
+			R.id.action_catalog -> {
+				startActivity(Intent(context, SourcesCatalogActivity::class.java))
+				true
+			}
+
 			R.id.action_disable_all -> {
 				viewModel.disableAll()
 				true

app/src/main/kotlin/org/koitharu/kotatsu/settings/sources/manage/SourcesManageViewModel.kt

@@ -1,4 +1,4 @@
-package org.koitharu.kotatsu.settings.sources
+package org.koitharu.kotatsu.settings.sources.manage
 
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.Dispatchers
@@ -103,10 +103,6 @@ class SourcesManageViewModel @Inject constructor(
 		}
 	}
 
-	fun expandOrCollapse(headerId: String?) {
-		listProducer.expandCollapse(headerId)
-	}
-
 	fun performSearch(query: String?) {
 		listProducer.setQuery(query?.trim().orEmpty())
 	}

app/src/main/kotlin/org/koitharu/kotatsu/settings/sources/model/SourceConfigItem.kt

@@ -2,45 +2,15 @@ package org.koitharu.kotatsu.settings.sources.model
 
 import androidx.annotation.DrawableRes
 import androidx.annotation.StringRes
-import org.koitharu.kotatsu.list.ui.ListModelDiffCallback
 import org.koitharu.kotatsu.list.ui.model.ListModel
 import org.koitharu.kotatsu.parsers.model.ContentType
 import org.koitharu.kotatsu.parsers.model.MangaSource
 
 sealed interface SourceConfigItem : ListModel {
 
-	data class Header(
-		@StringRes val titleResId: Int,
-	) : SourceConfigItem {
-
-		override fun areItemsTheSame(other: ListModel): Boolean {
-			return other is Header && other.titleResId == titleResId
-		}
-	}
-
-	data class LocaleGroup(
-		val localeId: String?,
-		val title: String?,
-		val isExpanded: Boolean,
-	) : SourceConfigItem {
-
-		override fun areItemsTheSame(other: ListModel): Boolean {
-			return other is LocaleGroup && other.localeId == localeId
-		}
-
-		override fun getChangePayload(previousState: ListModel): Any? {
-			return if (previousState is LocaleGroup && previousState.isExpanded != isExpanded) {
-				ListModelDiffCallback.PAYLOAD_CHECKED_CHANGED
-			} else {
-				super.getChangePayload(previousState)
-			}
-		}
-	}
-
 	data class SourceItem(
 		val source: MangaSource,
 		val isEnabled: Boolean,
-		val summary: String?,
 		val isDraggable: Boolean,
 		val isAvailable: Boolean,
 	) : SourceConfigItem {
@@ -51,14 +21,6 @@ sealed interface SourceConfigItem : ListModel {
 		override fun areItemsTheSame(other: ListModel): Boolean {
 			return other is SourceItem && other.source == source
 		}
-
-		override fun getChangePayload(previousState: ListModel): Any? {
-			return if (previousState is SourceItem && previousState.isEnabled != isEnabled) {
-				ListModelDiffCallback.PAYLOAD_CHECKED_CHANGED
-			} else {
-				super.getChangePayload(previousState)
-			}
-		}
 	}
 
 	data class Tip(

app/src/main/kotlin/org/koitharu/kotatsu/settings/userdata/UserDataSettingsFragment.kt

@@ -65,6 +65,7 @@ class UserDataSettingsFragment : BasePreferenceFragment(R.string.data_and_privac
 		findPreference<Preference>(AppSettings.KEY_PAGES_CACHE_CLEAR)?.bindBytesSizeSummary(checkNotNull(viewModel.cacheSizes[CacheDir.PAGES]))
 		findPreference<Preference>(AppSettings.KEY_THUMBS_CACHE_CLEAR)?.bindBytesSizeSummary(checkNotNull(viewModel.cacheSizes[CacheDir.THUMBS]))
 		findPreference<Preference>(AppSettings.KEY_HTTP_CACHE_CLEAR)?.bindBytesSizeSummary(viewModel.httpCacheSize)
+		bindPeriodicalBackupSummary()
 		findPreference<Preference>(AppSettings.KEY_SEARCH_HISTORY_CLEAR)?.let { pref ->
 			viewModel.searchHistoryCount.observe(viewLifecycleOwner) {
 				pref.summary = if (it < 0) {
@@ -200,6 +201,20 @@ class UserDataSettingsFragment : BasePreferenceFragment(R.string.data_and_privac
 		}
 	}
 
+	private fun bindPeriodicalBackupSummary() {
+		val preference = findPreference<Preference>(AppSettings.KEY_BACKUP_PERIODICAL_ENABLED) ?: return
+		val entries = resources.getStringArray(R.array.backup_frequency)
+		val entryValues = resources.getStringArray(R.array.values_backup_frequency)
+		viewModel.periodicalBackupFrequency.observe(viewLifecycleOwner) { freq ->
+			preference.summary = if (freq == 0L) {
+				getString(R.string.disabled)
+			} else {
+				val index = entryValues.indexOf(freq.toString())
+				entries.getOrNull(index)
+			}
+		}
+	}
+
 	private fun clearSearchHistory() {
 		MaterialAlertDialogBuilder(context ?: return)
 			.setTitle(R.string.clear_search_history)

app/src/main/kotlin/org/koitharu/kotatsu/settings/userdata/UserDataSettingsViewModel.kt

@@ -5,12 +5,15 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.cancelAndJoin
 import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.flatMapLatest
+import kotlinx.coroutines.flow.flowOf
 import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.runInterruptible
 import okhttp3.Cache
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.network.cookies.MutableCookieJar
 import org.koitharu.kotatsu.core.prefs.AppSettings
+import org.koitharu.kotatsu.core.prefs.observeAsFlow
 import org.koitharu.kotatsu.core.ui.BaseViewModel
 import org.koitharu.kotatsu.core.ui.util.ReversibleAction
 import org.koitharu.kotatsu.core.util.ext.MutableEventFlow
@@ -29,6 +32,7 @@ class UserDataSettingsViewModel @Inject constructor(
 	private val searchRepository: MangaSearchRepository,
 	private val trackingRepository: TrackingRepository,
 	private val cookieJar: MutableCookieJar,
+	private val settings: AppSettings,
 ) : BaseViewModel() {
 
 	val onActionDone = MutableEventFlow<ReversibleAction>()
@@ -40,6 +44,20 @@ class UserDataSettingsViewModel @Inject constructor(
 	val cacheSizes = EnumMap<CacheDir, MutableStateFlow<Long>>(CacheDir::class.java)
 	val storageUsage = MutableStateFlow<StorageUsage?>(null)
 
+	val periodicalBackupFrequency = settings.observeAsFlow(
+		key = AppSettings.KEY_BACKUP_PERIODICAL_ENABLED,
+		valueProducer = { isPeriodicalBackupEnabled },
+	).flatMapLatest { isEnabled ->
+		if (isEnabled) {
+			settings.observeAsFlow(
+				key = AppSettings.KEY_BACKUP_PERIODICAL_FREQUENCY,
+				valueProducer = { periodicalBackupFrequency },
+			)
+		} else {
+			flowOf(0)
+		}
+	}
+
 	private var storageUsageJob: Job? = null
 
 	init {

app/src/main/kotlin/org/koitharu/kotatsu/settings/utils/LinksPreference.kt

@@ -1,9 +1,9 @@
 package org.koitharu.kotatsu.settings.utils
 
 import android.content.Context
-import android.text.method.LinkMovementMethod
 import android.util.AttributeSet
 import android.widget.TextView
+import androidx.core.text.method.LinkMovementMethodCompat
 import androidx.preference.Preference
 import androidx.preference.PreferenceViewHolder
 
@@ -13,11 +13,9 @@ class LinksPreference @JvmOverloads constructor(
 	defStyleAttr: Int = androidx.preference.R.attr.preferenceStyle,
 	defStyleRes: Int = 0,
 ) : Preference(context, attrs, defStyleAttr, defStyleRes) {
-
-
 	override fun onBindViewHolder(holder: PreferenceViewHolder) {
 		super.onBindViewHolder(holder)
 		val summaryView = holder.findViewById(android.R.id.summary) as TextView
-		summaryView.movementMethod = LinkMovementMethod.getInstance()
+		summaryView.movementMethod = LinkMovementMethodCompat.getInstance()
 	}
-}
+}

app/src/main/kotlin/org/koitharu/kotatsu/settings/work/WorkScheduleManager.kt

@@ -5,6 +5,7 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.util.ext.processLifecycleScope
+import org.koitharu.kotatsu.settings.backup.PeriodicalBackupWorker
 import org.koitharu.kotatsu.suggestions.ui.SuggestionsWorker
 import org.koitharu.kotatsu.tracker.work.TrackWorker
 import javax.inject.Inject
@@ -13,6 +14,7 @@ class WorkScheduleManager @Inject constructor(
 	private val settings: AppSettings,
 	private val suggestionScheduler: SuggestionsWorker.Scheduler,
 	private val trackerScheduler: TrackWorker.Scheduler,
+	private val periodicalBackupScheduler: PeriodicalBackupWorker.Scheduler,
 ) : SharedPreferences.OnSharedPreferenceChangeListener {
 
 	override fun onSharedPreferenceChanged(sharedPreferences: SharedPreferences?, key: String?) {
@@ -30,6 +32,13 @@ class WorkScheduleManager @Inject constructor(
 				isEnabled = settings.isSuggestionsEnabled,
 				force = key != AppSettings.KEY_SUGGESTIONS,
 			)
+
+			AppSettings.KEY_BACKUP_PERIODICAL_ENABLED,
+			AppSettings.KEY_BACKUP_PERIODICAL_FREQUENCY -> updateWorker(
+				scheduler = periodicalBackupScheduler,
+				isEnabled = settings.isPeriodicalBackupEnabled,
+				force = key != AppSettings.KEY_BACKUP_PERIODICAL_ENABLED,
+			)
 		}
 	}
 
@@ -38,6 +47,7 @@ class WorkScheduleManager @Inject constructor(
 		processLifecycleScope.launch(Dispatchers.Default) {
 			updateWorkerImpl(trackerScheduler, settings.isTrackerEnabled, false)
 			updateWorkerImpl(suggestionScheduler, settings.isSuggestionsEnabled, false)
+			updateWorkerImpl(periodicalBackupScheduler, settings.isPeriodicalBackupEnabled, false)
 		}
 	}
 

app/src/main/kotlin/org/koitharu/kotatsu/sync/domain/SyncHelper.kt

@@ -130,9 +130,6 @@ class SyncHelper @AssistedInject constructor(
 	private fun upsertHistory(json: JSONArray, timestamp: Long): Array<ContentProviderResult> {
 		val uri = uri(authorityHistory, TABLE_HISTORY)
 		val operations = ArrayList<ContentProviderOperation>()
-		operations += ContentProviderOperation.newDelete(uri)
-			.withSelection("updated_at < ?", arrayOf(timestamp.toString()))
-			.build()
 		json.mapJSONTo(operations) { jo ->
 			operations.addAll(upsertManga(jo.removeJSONObject("manga"), authorityHistory))
 			ContentProviderOperation.newInsert(uri)
@@ -145,9 +142,6 @@ class SyncHelper @AssistedInject constructor(
 	private fun upsertFavouriteCategories(json: JSONArray, timestamp: Long): Array<ContentProviderResult> {
 		val uri = uri(authorityFavourites, TABLE_FAVOURITE_CATEGORIES)
 		val operations = ArrayList<ContentProviderOperation>()
-		operations += ContentProviderOperation.newDelete(uri)
-			.withSelection("created_at < ?", arrayOf(timestamp.toString()))
-			.build()
 		json.mapJSONTo(operations) { jo ->
 			ContentProviderOperation.newInsert(uri)
 				.withValues(jo.toContentValues())
@@ -159,9 +153,6 @@ class SyncHelper @AssistedInject constructor(
 	private fun upsertFavourites(json: JSONArray, timestamp: Long): Array<ContentProviderResult> {
 		val uri = uri(authorityFavourites, TABLE_FAVOURITES)
 		val operations = ArrayList<ContentProviderOperation>()
-		operations += ContentProviderOperation.newDelete(uri)
-			.withSelection("created_at < ?", arrayOf(timestamp.toString()))
-			.build()
 		json.mapJSONTo(operations) { jo ->
 			operations.addAll(upsertManga(jo.removeJSONObject("manga"), authorityFavourites))
 			ContentProviderOperation.newInsert(uri)

app/src/main/res/drawable/ic_screen_rotation_lock.xml

@@ -0,0 +1,11 @@
+<vector
+	xmlns:android="http://schemas.android.com/apk/res/android"
+	android:width="24dp"
+	android:height="24dp"
+	android:tint="?colorControlNormal"
+	android:viewportWidth="24"
+	android:viewportHeight="24">
+	<path
+		android:fillColor="#000000"
+		android:pathData="M16.8,2.5C16.8,1.56 17.56,0.8 18.5,0.8C19.44,0.8 20.2,1.56 20.2,2.5V3H16.8V2.5M16,9H21A1,1 0 0,0 22,8V4A1,1 0 0,0 21,3V2.5A2.5,2.5 0 0,0 18.5,0A2.5,2.5 0 0,0 16,2.5V3A1,1 0 0,0 15,4V8A1,1 0 0,0 16,9M8.47,20.5C5.2,18.94 2.86,15.76 2.5,12H1C1.5,18.16 6.66,23 12.95,23L13.61,22.97L9.8,19.15L8.47,20.5M23.25,12.77L20.68,10.2L19.27,11.61L21.5,13.83L15.83,19.5L4.5,8.17L10.17,2.5L12.27,4.61L13.68,3.2L11.23,0.75C10.64,0.16 9.69,0.16 9.11,0.75L2.75,7.11C2.16,7.7 2.16,8.65 2.75,9.23L14.77,21.25C15.36,21.84 16.31,21.84 16.89,21.25L23.25,14.89C23.84,14.3 23.84,13.35 23.25,12.77Z" />
+</vector>

app/src/main/res/layout-w600dp-land/activity_reader.xml

@@ -22,6 +22,17 @@
 		android:visibility="gone"
 		tools:visibility="visible" />
 
+	<org.koitharu.kotatsu.core.ui.widgets.ZoomControl
+		android:id="@+id/zoomControl"
+		android:layout_width="wrap_content"
+		android:layout_height="wrap_content"
+		android:layout_gravity="bottom|end"
+		android:layout_margin="16dp"
+		android:orientation="vertical"
+		android:visibility="gone"
+		app:layout_dodgeInsetEdges="bottom"
+		tools:visibility="visible" />
+
 	<com.google.android.material.appbar.AppBarLayout
 		android:id="@+id/appbar_top"
 		android:layout_width="match_parent"

app/src/main/res/layout/activity_reader.xml

@@ -12,6 +12,17 @@
 		android:layout_height="match_parent"
 		tools:background="@color/grey" />
 
+	<org.koitharu.kotatsu.core.ui.widgets.ZoomControl
+		android:id="@+id/zoomControl"
+		android:layout_width="wrap_content"
+		android:layout_height="wrap_content"
+		android:layout_gravity="bottom|end"
+		android:layout_margin="16dp"
+		android:orientation="vertical"
+		android:visibility="gone"
+		app:layout_dodgeInsetEdges="bottom"
+		tools:visibility="visible" />
+
 	<org.koitharu.kotatsu.reader.ui.ReaderInfoBarView
 		android:id="@+id/infoBar"
 		android:layout_width="match_parent"
@@ -62,9 +73,9 @@
 				android:layout_height="wrap_content"
 				android:stepSize="1"
 				android:valueFrom="0"
-				app:trackColorInactive="?attr/m3ColorBackground"
 				app:labelBehavior="floating"
-				app:tickVisible="false" />
+				app:tickVisible="false"
+				app:trackColorInactive="?attr/m3ColorBackground" />
 
 		</com.google.android.material.appbar.MaterialToolbar>
 

app/src/main/res/layout/activity_sources_catalog.xml

@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.coordinatorlayout.widget.CoordinatorLayout
+	xmlns:android="http://schemas.android.com/apk/res/android"
+	xmlns:app="http://schemas.android.com/apk/res-auto"
+	xmlns:tools="http://schemas.android.com/tools"
+	android:layout_width="match_parent"
+	android:layout_height="match_parent"
+	tools:context=".settings.sources.catalog.SourcesCatalogActivity">
+
+	<com.google.android.material.appbar.AppBarLayout
+		android:id="@+id/appbar"
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content"
+		android:fitsSystemWindows="true">
+
+		<com.google.android.material.appbar.MaterialToolbar
+			android:id="@id/toolbar"
+			android:layout_width="match_parent"
+			android:layout_height="?attr/actionBarSize" />
+
+		<com.google.android.material.tabs.TabLayout
+			android:id="@+id/tabs"
+			android:layout_width="match_parent"
+			android:layout_height="wrap_content"
+			app:tabGravity="start"
+			app:tabMode="scrollable" />
+
+	</com.google.android.material.appbar.AppBarLayout>
+
+	<FrameLayout
+		android:id="@+id/layout_list"
+		android:layout_width="match_parent"
+		android:layout_height="match_parent"
+		app:layout_behavior="com.google.android.material.appbar.AppBarLayout$ScrollingViewBehavior">
+
+		<org.koitharu.kotatsu.core.ui.list.fastscroll.FastScrollRecyclerView
+			android:id="@+id/recyclerView"
+			android:layout_width="match_parent"
+			android:layout_height="match_parent"
+			android:clipToPadding="false"
+			android:orientation="vertical"
+			app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
+			tools:listitem="@layout/item_source_config" />
+
+	</FrameLayout>
+
+</androidx.coordinatorlayout.widget.CoordinatorLayout>

app/src/main/res/layout/fragment_reader_webtoon.xml

@@ -2,7 +2,6 @@
 <org.koitharu.kotatsu.reader.ui.pager.webtoon.WebtoonScalingFrame
 	xmlns:android="http://schemas.android.com/apk/res/android"
 	xmlns:app="http://schemas.android.com/apk/res-auto"
-	xmlns:tools="http://schemas.android.com/tools"
 	android:id="@+id/frame"
 	android:layout_width="match_parent"
 	android:layout_height="match_parent"
@@ -17,14 +16,4 @@
 		android:orientation="vertical"
 		app:layoutManager="org.koitharu.kotatsu.reader.ui.pager.webtoon.WebtoonLayoutManager" />
 
-	<org.koitharu.kotatsu.core.ui.widgets.ZoomControl
-		android:id="@+id/zoomControl"
-		android:layout_width="wrap_content"
-		android:layout_height="wrap_content"
-		android:layout_gravity="bottom|end"
-		android:layout_margin="16dp"
-		android:orientation="vertical"
-		android:visibility="gone"
-		tools:visibility="visible" />
-
 </org.koitharu.kotatsu.reader.ui.pager.webtoon.WebtoonScalingFrame>

app/src/main/res/layout/item_download.xml

@@ -104,31 +104,6 @@
 			app:layout_constraintTop_toBottomOf="@id/textView_status"
 			tools:text="@tools:sample/lorem[3]" />
 
-		<com.google.android.material.card.MaterialCardView
-			android:id="@+id/card_details"
-			android:layout_width="0dp"
-			android:layout_height="0dp"
-			android:layout_marginHorizontal="12dp"
-			android:layout_marginTop="12dp"
-			app:layout_constraintEnd_toEndOf="parent"
-			app:layout_constraintHeight_default="wrap"
-			app:layout_constraintHeight_max="280dp"
-			app:layout_constraintStart_toStartOf="parent"
-			app:layout_constraintTop_toBottomOf="@id/progressBar"
-			app:shapeAppearance="?shapeAppearanceCornerMedium">
-
-			<androidx.recyclerview.widget.RecyclerView
-				android:id="@+id/recyclerView_chapters"
-				android:layout_width="match_parent"
-				android:layout_height="match_parent"
-				android:orientation="vertical"
-				android:scrollbars="vertical"
-				app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
-				tools:itemCount="200"
-				tools:listitem="@layout/item_chapter_download" />
-
-		</com.google.android.material.card.MaterialCardView>
-
 		<Button
 			android:id="@+id/button_pause"
 			style="?materialButtonOutlinedStyle"
@@ -139,7 +114,7 @@
 			android:text="@string/pause"
 			android:visibility="gone"
 			app:layout_constraintEnd_toStartOf="@id/button_resume"
-			app:layout_constraintTop_toBottomOf="@id/card_details"
+			app:layout_constraintTop_toBottomOf="@id/progressBar"
 			tools:visibility="visible" />
 
 		<Button
@@ -152,7 +127,7 @@
 			android:text="@string/resume"
 			android:visibility="gone"
 			app:layout_constraintEnd_toStartOf="@id/button_cancel"
-			app:layout_constraintTop_toBottomOf="@id/card_details" />
+			app:layout_constraintTop_toBottomOf="@id/progressBar" />
 
 		<Button
 			android:id="@+id/button_cancel"
@@ -164,7 +139,7 @@
 			android:text="@android:string/cancel"
 			android:visibility="gone"
 			app:layout_constraintEnd_toEndOf="parent"
-			app:layout_constraintTop_toBottomOf="@id/card_details"
+			app:layout_constraintTop_toBottomOf="@id/progressBar"
 			tools:visibility="visible" />
 
 	</androidx.constraintlayout.widget.ConstraintLayout>