Fix webtoon mode

Currently translated at 100.0% (531 of 531 strings)

Translated using Weblate (Russian)

Currently translated at 100.0% (531 of 531 strings)

Translated using Weblate (Belarusian)

Currently translated at 100.0% (531 of 531 strings)

Co-authored-by: Макар Разин <makarrazin14@gmail.com>
Translate-URL: https://hosted.weblate.org/projects/kotatsu/strings/be/
Translate-URL: https://hosted.weblate.org/projects/kotatsu/strings/ru/
Translate-URL: https://hosted.weblate.org/projects/kotatsu/strings/uk/
Translation: Kotatsu/Strings

.github/FUNDING.yml

@@ -1,2 +0,0 @@
-ko_fi: xtimms
-custom: ["https://yoomoney.ru/to/410012543938752"]

app/build.gradle

@@ -16,8 +16,8 @@ android {
 		applicationId 'org.koitharu.kotatsu'
 		minSdk = 21
 		targetSdk = 34
-		versionCode = 597
-		versionName = '6.3.0'
+		versionCode = 602
+		versionName = '6.4.2'
 		generatedDensities = []
 		testInstrumentationRunner "org.koitharu.kotatsu.HiltTestRunner"
 		ksp {
@@ -82,7 +82,7 @@ afterEvaluate {
 }
 dependencies {
 	//noinspection GradleDependency
-	implementation('com.github.KotatsuApp:kotatsu-parsers:41eea1c420') {
+	implementation('com.github.KotatsuApp:kotatsu-parsers:0efd5437f9') {
 		exclude group: 'org.json', module: 'json'
 	}
 
@@ -134,7 +134,7 @@ dependencies {
 
 	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.KotatsuApp:subsampling-scale-image-view:771c8753ae'
 	implementation 'com.github.solkin:disk-lru-cache:1.4'
 	implementation 'io.noties.markwon:core:4.6.2'
 

app/src/debug/kotlin/org/koitharu/kotatsu/core/parser/DummyParser.kt

@@ -5,6 +5,7 @@ import org.koitharu.kotatsu.parsers.MangaParser
 import org.koitharu.kotatsu.parsers.config.ConfigKey
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaChapter
+import org.koitharu.kotatsu.parsers.model.MangaListFilter
 import org.koitharu.kotatsu.parsers.model.MangaPage
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.model.MangaTag
@@ -19,19 +20,14 @@ class DummyParser(context: MangaLoaderContext) : MangaParser(context, MangaSourc
 	override val configKeyDomain: ConfigKey.Domain
 		get() = ConfigKey.Domain("")
 
-	override val sortOrders: Set<SortOrder>
+	override val availableSortOrders: Set<SortOrder>
 		get() = EnumSet.allOf(SortOrder::class.java)
 
 	override suspend fun getDetails(manga: Manga): Manga {
 		TODO("Not yet implemented")
 	}
 
-	override suspend fun getList(
-		offset: Int,
-		query: String?,
-		tags: Set<MangaTag>?,
-		sortOrder: SortOrder,
-	): List<Manga> {
+	override suspend fun getList(offset: Int, filter: MangaListFilter?): List<Manga> {
 		TODO("Not yet implemented")
 	}
 
@@ -39,7 +35,7 @@ class DummyParser(context: MangaLoaderContext) : MangaParser(context, MangaSourc
 		TODO("Not yet implemented")
 	}
 
-	override suspend fun getTags(): Set<MangaTag> {
+	override suspend fun getAvailableTags(): Set<MangaTag> {
 		TODO("Not yet implemented")
 	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/bookmarks/domain/Bookmark.kt

@@ -1,7 +1,7 @@
 package org.koitharu.kotatsu.bookmarks.domain
 
 import org.koitharu.kotatsu.list.ui.model.ListModel
-import org.koitharu.kotatsu.local.data.ImageFileFilter
+import org.koitharu.kotatsu.local.data.hasImageExtension
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaPage
 import java.util.Date
@@ -38,7 +38,6 @@ data class Bookmark(
 	)
 
 	private fun isImageUrlDirect(): Boolean {
-		val extension = imageUrl.substringAfterLast('.')
-		return extension.isNotEmpty() && ImageFileFilter().isExtensionValid(extension)
+		return hasImageExtension(imageUrl)
 	}
 }

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

@@ -1,12 +1,15 @@
 package org.koitharu.kotatsu.core.model
 
 import android.net.Uri
+import androidx.annotation.StringRes
 import androidx.core.os.LocaleListCompat
+import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.util.ext.iterator
 import org.koitharu.kotatsu.details.ui.model.ChapterListItem
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaChapter
 import org.koitharu.kotatsu.parsers.model.MangaSource
+import org.koitharu.kotatsu.parsers.model.MangaState
 import org.koitharu.kotatsu.parsers.util.mapToSet
 
 @JvmName("mangaIds")
@@ -31,6 +34,15 @@ fun Collection<ChapterListItem>.countChaptersByBranch(): Int {
 	return acc.values.max()
 }
 
+@get:StringRes
+val MangaState.titleResId: Int
+	get() = when (this) {
+		MangaState.ONGOING -> R.string.state_ongoing
+		MangaState.FINISHED -> R.string.state_finished
+		MangaState.ABANDONED -> R.string.state_abandoned
+		MangaState.PAUSED -> R.string.state_paused
+	}
+
 fun Manga.findChapter(id: Long): MangaChapter? {
 	return chapters?.findById(id)
 }

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

@@ -63,6 +63,9 @@ class MirrorSwitchInterceptor @Inject constructor(
 		}
 		synchronized(obtainLock(repository.source)) {
 			val currentMirror = repository.domain
+			if (currentMirror !in mirrors) {
+				return@synchronized false
+			}
 			addToBlacklist(repository.source, currentMirror)
 			val newMirror = mirrors.firstOrNull { x ->
 				x != currentMirror && !isBlacklisted(repository.source, x)

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

@@ -1,6 +1,7 @@
 package org.koitharu.kotatsu.core.parser
 
 import android.net.Uri
+import coil.request.CachePolicy
 import dagger.Reusable
 import org.koitharu.kotatsu.core.model.MangaSource
 import org.koitharu.kotatsu.core.util.ext.ifNullOrEmpty
@@ -8,6 +9,7 @@ import org.koitharu.kotatsu.explore.data.MangaSourcesRepository
 import org.koitharu.kotatsu.parsers.exception.NotFoundException
 import org.koitharu.kotatsu.parsers.model.ContentType
 import org.koitharu.kotatsu.parsers.model.Manga
+import org.koitharu.kotatsu.parsers.model.MangaListFilter
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.util.almostEquals
 import org.koitharu.kotatsu.parsers.util.levenshteinDistance
@@ -58,7 +60,7 @@ class MangaLinkResolver @Inject constructor(
 
 	private suspend fun MangaRepository.findExact(url: String?, title: String?): Manga? {
 		if (!title.isNullOrEmpty()) {
-			val list = getList(0, title)
+			val list = getList(0, MangaListFilter.Search(title))
 			if (url != null) {
 				list.find { it.url == url }?.let {
 					return it
@@ -77,14 +79,14 @@ class MangaLinkResolver @Inject constructor(
 			}.ifNullOrEmpty {
 				seed.author
 			} ?: return@runCatchingCancellable null
-			val seedList = getList(0, seedTitle)
+			val seedList = getList(0, MangaListFilter.Search(seedTitle))
 			seedList.first { x -> x.url == url }
 		}.getOrThrow()
 	}
 
 	private suspend fun MangaRepository.getDetailsNoCache(manga: Manga): Manga {
 		return if (this is RemoteMangaRepository) {
-			getDetails(manga, withCache = false)
+			getDetails(manga, CachePolicy.READ_ONLY)
 		} else {
 			getDetails(manga)
 		}

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

@@ -7,8 +7,10 @@ import org.koitharu.kotatsu.local.data.LocalMangaRepository
 import org.koitharu.kotatsu.parsers.MangaLoaderContext
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaChapter
+import org.koitharu.kotatsu.parsers.model.MangaListFilter
 import org.koitharu.kotatsu.parsers.model.MangaPage
 import org.koitharu.kotatsu.parsers.model.MangaSource
+import org.koitharu.kotatsu.parsers.model.MangaState
 import org.koitharu.kotatsu.parsers.model.MangaTag
 import org.koitharu.kotatsu.parsers.model.SortOrder
 import java.lang.ref.WeakReference
@@ -23,11 +25,13 @@ interface MangaRepository {
 
 	val sortOrders: Set<SortOrder>
 
+	val states: Set<MangaState>
+
 	var defaultSortOrder: SortOrder
 
-	suspend fun getList(offset: Int, query: String): List<Manga>
+	val isMultipleTagsSupported: Boolean
 
-	suspend fun getList(offset: Int, tags: Set<MangaTag>?, sortOrder: SortOrder?): List<Manga>
+	suspend fun getList(offset: Int, filter: MangaListFilter?): List<Manga>
 
 	suspend fun getDetails(manga: Manga): Manga
 

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

@@ -1,6 +1,7 @@
 package org.koitharu.kotatsu.core.parser
 
 import android.util.Log
+import coil.request.CachePolicy
 import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
@@ -23,8 +24,10 @@ import org.koitharu.kotatsu.parsers.exception.ParseException
 import org.koitharu.kotatsu.parsers.model.Favicons
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaChapter
+import org.koitharu.kotatsu.parsers.model.MangaListFilter
 import org.koitharu.kotatsu.parsers.model.MangaPage
 import org.koitharu.kotatsu.parsers.model.MangaSource
+import org.koitharu.kotatsu.parsers.model.MangaState
 import org.koitharu.kotatsu.parsers.model.MangaTag
 import org.koitharu.kotatsu.parsers.model.SortOrder
 import org.koitharu.kotatsu.parsers.util.domain
@@ -40,7 +43,10 @@ class RemoteMangaRepository(
 		get() = parser.source
 
 	override val sortOrders: Set<SortOrder>
-		get() = parser.sortOrders
+		get() = parser.availableSortOrders
+
+	override val states: Set<MangaState>
+		get() = parser.availableStates
 
 	override var defaultSortOrder: SortOrder
 		get() = getConfig().defaultSortOrder ?: sortOrders.first()
@@ -48,6 +54,9 @@ class RemoteMangaRepository(
 			getConfig().defaultSortOrder = value
 		}
 
+	override val isMultipleTagsSupported: Boolean
+		get() = parser.isMultipleTagsSupported
+
 	var domain: String
 		get() = parser.domain
 		set(value) {
@@ -68,19 +77,13 @@ class RemoteMangaRepository(
 		}
 	}
 
-	override suspend fun getList(offset: Int, query: String): List<Manga> {
+	override suspend fun getList(offset: Int, filter: MangaListFilter?): List<Manga> {
 		return mirrorSwitchInterceptor.withMirrorSwitching {
-			parser.getList(offset, query)
+			parser.getList(offset, filter)
 		}
 	}
 
-	override suspend fun getList(offset: Int, tags: Set<MangaTag>?, sortOrder: SortOrder?): List<Manga> {
-		return mirrorSwitchInterceptor.withMirrorSwitching {
-			parser.getList(offset, tags, sortOrder)
-		}
-	}
-
-	override suspend fun getDetails(manga: Manga): Manga = getDetails(manga, withCache = true)
+	override suspend fun getDetails(manga: Manga): Manga = getDetails(manga, CachePolicy.ENABLED)
 
 	override suspend fun getPages(chapter: MangaChapter): List<MangaPage> {
 		cache.getPages(source, chapter.url)?.let { return it }
@@ -98,7 +101,7 @@ class RemoteMangaRepository(
 	}
 
 	override suspend fun getTags(): Set<MangaTag> = mirrorSwitchInterceptor.withMirrorSwitching {
-		parser.getTags()
+		parser.getAvailableTags()
 	}
 
 	suspend fun getFavicons(): Favicons = mirrorSwitchInterceptor.withMirrorSwitching {
@@ -114,17 +117,18 @@ class RemoteMangaRepository(
 		return related.await()
 	}
 
-	suspend fun getDetails(manga: Manga, withCache: Boolean): Manga {
-		if (!withCache) {
-			return parser.getDetails(manga)
+	suspend fun getDetails(manga: Manga, cachePolicy: CachePolicy): Manga {
+		if (cachePolicy.readEnabled) {
+			cache.getDetails(source, manga.url)?.let { return it }
 		}
-		cache.getDetails(source, manga.url)?.let { return it }
 		val details = asyncSafe {
 			mirrorSwitchInterceptor.withMirrorSwitching {
 				parser.getDetails(manga)
 			}
 		}
-		cache.putDetails(source, manga.url, details)
+		if (cachePolicy.writeEnabled) {
+			cache.putDetails(source, manga.url, details)
+		}
 		return details.await()
 	}
 
@@ -133,7 +137,7 @@ class RemoteMangaRepository(
 	}
 
 	suspend fun find(manga: Manga): Manga? {
-		val list = getList(0, manga.title)
+		val list = getList(0, MangaListFilter.Search(manga.title))
 		return list.find { x -> x.id == manga.id }
 	}
 

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

@@ -109,6 +109,9 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 	val isReaderTapsAdaptive: Boolean
 		get() = !prefs.getBoolean(KEY_READER_TAPS_LTR, false)
 
+	val isReaderOptimizationEnabled: Boolean
+		get() = prefs.getBoolean(KEY_READER_OPTIMIZE, false)
+
 	var isTrafficWarningEnabled: Boolean
 		get() = prefs.getBoolean(KEY_TRAFFIC_WARNING, true)
 		set(value) = prefs.edit { putBoolean(KEY_TRAFFIC_WARNING, value) }
@@ -506,6 +509,7 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		const val KEY_READER_SCREEN_ON = "reader_screen_on"
 		const val KEY_SHORTCUTS = "dynamic_shortcuts"
 		const val KEY_READER_TAPS_LTR = "reader_taps_ltr"
+		const val KEY_READER_OPTIMIZE = "reader_optimize"
 		const val KEY_LOCAL_LIST_ORDER = "local_order"
 		const val KEY_HISTORY_ORDER = "history_order"
 		const val KEY_WEBTOON_ZOOM = "webtoon_zoom"

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

@@ -0,0 +1,88 @@
+package org.koitharu.kotatsu.core.ui.list.lifecycle
+
+import android.view.View
+import androidx.annotation.CallSuper
+import androidx.lifecycle.DefaultLifecycleObserver
+import androidx.lifecycle.Lifecycle
+import androidx.lifecycle.LifecycleOwner
+import androidx.lifecycle.LifecycleRegistry
+import androidx.recyclerview.widget.RecyclerView
+
+abstract class LifecycleAwareViewHolder(
+	itemView: View,
+	private val parentLifecycleOwner: LifecycleOwner,
+) : RecyclerView.ViewHolder(itemView), LifecycleOwner {
+
+	@Suppress("LeakingThis")
+	final override val lifecycle = LifecycleRegistry(this)
+	private var isCurrent = false
+
+	init {
+		parentLifecycleOwner.lifecycle.addObserver(ParentLifecycleObserver())
+		if (parentLifecycleOwner.lifecycle.currentState.isAtLeast(Lifecycle.State.CREATED)) {
+			lifecycle.handleLifecycleEvent(Lifecycle.Event.ON_CREATE)
+		}
+	}
+
+	fun setIsCurrent(value: Boolean) {
+		isCurrent = value
+		dispatchResumed()
+	}
+
+	@CallSuper
+	open fun onStart() = lifecycle.handleLifecycleEvent(Lifecycle.Event.ON_START)
+
+	@CallSuper
+	open fun onResume() = lifecycle.handleLifecycleEvent(Lifecycle.Event.ON_RESUME)
+
+	@CallSuper
+	open fun onPause() = lifecycle.handleLifecycleEvent(Lifecycle.Event.ON_PAUSE)
+
+	@CallSuper
+	open fun onStop() = lifecycle.handleLifecycleEvent(Lifecycle.Event.ON_STOP)
+
+	private fun dispatchResumed() {
+		val isParentResumed = parentLifecycleOwner.lifecycle.currentState.isAtLeast(Lifecycle.State.RESUMED)
+		if (isCurrent && isParentResumed) {
+			if (!isResumed()) {
+				onResume()
+			}
+		} else {
+			if (isResumed()) {
+				onPause()
+			}
+		}
+	}
+
+	protected fun isResumed(): Boolean {
+		return lifecycle.currentState.isAtLeast(Lifecycle.State.RESUMED)
+	}
+
+	private inner class ParentLifecycleObserver : DefaultLifecycleObserver {
+
+		override fun onCreate(owner: LifecycleOwner) {
+			lifecycle.handleLifecycleEvent(Lifecycle.Event.ON_CREATE)
+		}
+
+		override fun onStart(owner: LifecycleOwner) {
+			onStart()
+		}
+
+		override fun onResume(owner: LifecycleOwner) {
+			dispatchResumed()
+		}
+
+		override fun onPause(owner: LifecycleOwner) {
+			dispatchResumed()
+		}
+
+		override fun onStop(owner: LifecycleOwner) {
+			onStop()
+		}
+
+		override fun onDestroy(owner: LifecycleOwner) {
+			lifecycle.handleLifecycleEvent(Lifecycle.Event.ON_DESTROY)
+			owner.lifecycle.removeObserver(this)
+		}
+	}
+}

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

@@ -0,0 +1,23 @@
+package org.koitharu.kotatsu.core.ui.list.lifecycle
+
+import androidx.core.view.children
+import androidx.viewpager2.widget.ViewPager2
+import org.koitharu.kotatsu.core.util.ext.recyclerView
+
+class PagerLifecycleDispatcher(
+	private val pager: ViewPager2,
+) : ViewPager2.OnPageChangeCallback() {
+
+	override fun onPageSelected(position: Int) {
+		super.onPageSelected(position)
+		val rv = pager.recyclerView ?: return
+		for (child in rv.children) {
+			val wh = rv.getChildViewHolder(child) ?: continue
+			(wh as? LifecycleAwareViewHolder)?.setIsCurrent(wh.absoluteAdapterPosition == position)
+		}
+	}
+
+	fun invalidate() {
+		onPageSelected(pager.currentItem)
+	}
+}

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

@@ -0,0 +1,35 @@
+package org.koitharu.kotatsu.core.ui.list.lifecycle
+
+import androidx.core.view.children
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import androidx.recyclerview.widget.RecyclerView.NO_POSITION
+
+class RecyclerViewLifecycleDispatcher : RecyclerView.OnScrollListener() {
+
+	private var prevFirst = NO_POSITION
+	private var prevLast = NO_POSITION
+
+	override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) {
+		super.onScrolled(recyclerView, dx, dy)
+		invalidate(recyclerView)
+	}
+
+	fun invalidate(recyclerView: RecyclerView) {
+		val lm = recyclerView.layoutManager as? LinearLayoutManager ?: return
+		val first = lm.findFirstVisibleItemPosition()
+		val last = lm.findLastVisibleItemPosition()
+		if (first == prevFirst && last == prevLast) {
+			return
+		}
+		prevFirst = first
+		prevLast = last
+		if (first == NO_POSITION || last == NO_POSITION) {
+			return
+		}
+		for (child in recyclerView.children) {
+			val wh = recyclerView.getChildViewHolder(child) ?: continue
+			(wh as? LifecycleAwareViewHolder)?.setIsCurrent(wh.absoluteAdapterPosition in first..last)
+		}
+	}
+}

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

@@ -2,6 +2,7 @@ package org.koitharu.kotatsu.core.util.ext
 
 import androidx.collection.ArrayMap
 import androidx.collection.ArraySet
+import org.koitharu.kotatsu.BuildConfig
 import java.util.Collections
 import java.util.EnumSet
 
@@ -57,3 +58,13 @@ inline fun <reified E : Enum<E>> Collection<E>.toEnumSet(): EnumSet<E> = if (isE
 }
 
 fun <E : Enum<E>> Collection<E>.sortedByOrdinal() = sortedBy { it.ordinal }
+
+fun <T> Iterable<T>.sortedWithSafe(comparator: Comparator<in T>): List<T> = try {
+	sortedWith(comparator)
+} catch (e: IllegalArgumentException) {
+	if (BuildConfig.DEBUG) {
+		throw e
+	} else {
+		toList()
+	}
+}

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

@@ -7,7 +7,6 @@ import android.os.Build
 import android.os.Environment
 import android.os.storage.StorageManager
 import android.provider.OpenableColumns
-import androidx.annotation.WorkerThread
 import androidx.core.database.getStringOrNull
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.runInterruptible
@@ -19,7 +18,9 @@ import java.io.FileFilter
 import java.nio.file.attribute.BasicFileAttributes
 import java.util.zip.ZipEntry
 import java.util.zip.ZipFile
+import kotlin.io.path.ExperimentalPathApi
 import kotlin.io.path.readAttributes
+import kotlin.io.path.walk
 
 fun File.subdir(name: String) = File(this, name).also {
 	if (!it.exists()) it.mkdirs()
@@ -49,7 +50,7 @@ fun File.getStorageName(context: Context): String = runCatching {
 	}
 }.getOrNull() ?: context.getString(R.string.other_storage)
 
-fun Uri.toFileOrNull() = if (scheme == "file") path?.let(::File) else null
+fun Uri.toFileOrNull() = if (scheme == URI_SCHEME_FILE) path?.let(::File) else null
 
 suspend fun File.deleteAwait() = withContext(Dispatchers.IO) {
 	delete() || deleteRecursively()
@@ -71,31 +72,7 @@ fun ContentResolver.resolveName(uri: Uri): String? {
 }
 
 suspend fun File.computeSize(): Long = runInterruptible(Dispatchers.IO) {
-	computeSizeInternal(this)
-}
-
-@WorkerThread
-private fun computeSizeInternal(file: File): Long {
-	return if (file.isDirectory) {
-		file.children().sumOf { computeSizeInternal(it) }
-	} else {
-		file.length()
-	}
-}
-
-fun File.listFilesRecursive(filter: FileFilter? = null): Sequence<File> = sequence {
-	listFilesRecursiveImpl(this@listFilesRecursive, filter)
-}
-
-private suspend fun SequenceScope<File>.listFilesRecursiveImpl(root: File, filter: FileFilter?) {
-	val ss = root.children()
-	for (f in ss) {
-		if (f.isDirectory) {
-			listFilesRecursiveImpl(f, filter)
-		} else if (filter == null || filter.accept(f)) {
-			yield(f)
-		}
-	}
+	walkCompat().sumOf { it.length() }
 }
 
 fun File.children() = FileSequence(this)
@@ -108,3 +85,12 @@ val File.creationTime
 	} else {
 		lastModified()
 	}
+
+@OptIn(ExperimentalPathApi::class)
+fun File.walkCompat() = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+	// Use lazy loading on Android 8.0 and later
+	toPath().walk().map { it.toFile() }
+} else {
+	// Directories are excluded by default in Path.walk(), so do it here as well
+	walk().filter { it.isFile }
+}

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

@@ -1,6 +1,9 @@
 package org.koitharu.kotatsu.core.util.ext
 
+import android.content.Context
 import androidx.core.os.LocaleListCompat
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.parsers.util.toTitleCase
 import java.util.Locale
 
 operator fun LocaleListCompat.iterator(): ListIterator<Locale> = LocaleListCompatIterator(this)
@@ -17,6 +20,14 @@ inline fun <T> LocaleListCompat.mapToSet(block: (Locale) -> T): Set<T> {
 
 fun LocaleListCompat.getOrThrow(index: Int) = get(index) ?: throw NoSuchElementException()
 
+fun String?.getLocaleDisplayName(context: Context): String {
+	if (this == null) {
+		return context.getString(R.string.various_languages)
+	}
+	val lc = Locale(this)
+	return lc.getDisplayLanguage(lc).toTitleCase(lc)
+}
+
 private class LocaleListCompatIterator(private val list: LocaleListCompat) : ListIterator<Locale> {
 
 	private var index = 0

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

@@ -27,7 +27,10 @@ import java.net.SocketTimeoutException
 import java.net.UnknownHostException
 
 private const val MSG_NO_SPACE_LEFT = "No space left on device"
-private const val IMAGE_FORMAT_NO_SUPPORTED = "Image format not supported"
+private const val IMAGE_FORMAT_NOT_SUPPORTED = "Image format not supported"
+private const val MULTIPLE_GENRES_NOT_SUPPORTED = "Multiple genres are not supported by this source"
+private const val MULTIPLE_STATES_NOT_SUPPORTED = "Multiple states are not supported by this source"
+private const val SEARCH_NOT_SUPPORTED = "Search is not supported by this source"
 
 fun Throwable.getDisplayMessage(resources: Resources): String = when (this) {
 	is AuthRequiredException -> resources.getString(R.string.auth_required)
@@ -56,8 +59,7 @@ fun Throwable.getDisplayMessage(resources: Resources): String = when (this) {
 	is HttpException -> getHttpDisplayMessage(response.code, resources)
 	is HttpStatusException -> getHttpDisplayMessage(statusCode, resources)
 
-	is IOException -> getDisplayMessage(message, resources) ?: localizedMessage
-	else -> localizedMessage
+	else -> getDisplayMessage(message, resources) ?: localizedMessage
 }.ifNullOrEmpty {
 	resources.getString(R.string.error_occurred)
 }
@@ -82,7 +84,10 @@ private fun getHttpDisplayMessage(statusCode: Int, resources: Resources): String
 private fun getDisplayMessage(msg: String?, resources: Resources): String? = when {
 	msg.isNullOrEmpty() -> null
 	msg.contains(MSG_NO_SPACE_LEFT) -> resources.getString(R.string.error_no_space_left)
-	msg.contains(IMAGE_FORMAT_NO_SUPPORTED) -> resources.getString(R.string.error_corrupted_file)
+	msg.contains(IMAGE_FORMAT_NOT_SUPPORTED) -> resources.getString(R.string.error_corrupted_file)
+	msg == MULTIPLE_GENRES_NOT_SUPPORTED -> resources.getString(R.string.error_multiple_genres_not_supported)
+	msg == MULTIPLE_STATES_NOT_SUPPORTED -> resources.getString(R.string.error_multiple_states_not_supported)
+	msg == SEARCH_NOT_SUPPORTED -> resources.getString(R.string.error_search_not_supported)
 	else -> null
 }
 

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

@@ -0,0 +1,50 @@
+package org.koitharu.kotatsu.core.util.ext
+
+import android.net.Uri
+import androidx.core.net.toFile
+import okio.Source
+import okio.source
+import okio.use
+import org.koitharu.kotatsu.local.data.util.withExtraCloseable
+import java.io.File
+import java.util.zip.ZipFile
+
+const val URI_SCHEME_FILE = "file"
+const val URI_SCHEME_ZIP = "file+zip"
+
+fun Uri.exists(): Boolean = when (scheme) {
+	URI_SCHEME_FILE -> toFile().exists()
+	URI_SCHEME_ZIP -> {
+		val file = File(requireNotNull(schemeSpecificPart))
+		file.exists() && ZipFile(file).use { it.getEntry(fragment) != null }
+	}
+
+	else -> unsupportedUri(this)
+}
+
+fun Uri.isTargetNotEmpty(): Boolean = when (scheme) {
+	URI_SCHEME_FILE -> toFile().isNotEmpty()
+	URI_SCHEME_ZIP -> {
+		val file = File(requireNotNull(schemeSpecificPart))
+		file.exists() && ZipFile(file).use { (it.getEntry(fragment)?.size ?: 0L) != 0L }
+	}
+
+	else -> unsupportedUri(this)
+}
+
+fun Uri.source(): Source = when (scheme) {
+	URI_SCHEME_FILE -> toFile().source()
+	URI_SCHEME_ZIP -> {
+		val zip = ZipFile(schemeSpecificPart)
+		val entry = zip.getEntry(fragment)
+		zip.getInputStream(entry).source().withExtraCloseable(zip)
+	}
+
+	else -> unsupportedUri(this)
+}
+
+fun File.toZipUri(entryName: String): Uri = Uri.parse("$URI_SCHEME_ZIP://$absolutePath#$entryName")
+
+private fun unsupportedUri(uri: Uri): Nothing {
+	throw IllegalArgumentException("Bad uri $uri: only schemes $URI_SCHEME_FILE and $URI_SCHEME_ZIP are supported")
+}

app/src/main/kotlin/org/koitharu/kotatsu/core/zip/ZipPool.kt

@@ -1,32 +0,0 @@
-package org.koitharu.kotatsu.core.zip
-
-import android.net.Uri
-import androidx.annotation.WorkerThread
-import androidx.collection.LruCache
-import okhttp3.internal.closeQuietly
-import okio.Source
-import okio.source
-import java.io.File
-import java.util.zip.ZipFile
-
-class ZipPool(maxSize: Int) : LruCache<String, ZipFile>(maxSize) {
-
-	override fun entryRemoved(evicted: Boolean, key: String, oldValue: ZipFile, newValue: ZipFile?) {
-		super.entryRemoved(evicted, key, oldValue, newValue)
-		oldValue.closeQuietly()
-	}
-
-	override fun create(key: String): ZipFile {
-		return ZipFile(File(key), ZipFile.OPEN_READ)
-	}
-
-	@Synchronized
-	@WorkerThread
-	operator fun get(uri: Uri): Source {
-		val zip = requireNotNull(get(uri.schemeSpecificPart)) {
-			"Cannot obtain zip by \"$uri\""
-		}
-		val entry = zip.getEntry(uri.fragment)
-		return zip.getInputStream(entry).source()
-	}
-}

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

@@ -11,8 +11,8 @@ import kotlinx.coroutines.async
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.channelFlow
 import kotlinx.coroutines.runInterruptible
+import okio.IOException
 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
@@ -33,7 +33,6 @@ 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 {
@@ -48,16 +47,15 @@ class DetailsLoadUseCase @Inject constructor(
 			null
 		}
 		send(MangaDetails(manga, null, null, false))
-		if (!networkState.value) {
-			// try load offline instead
-			local?.await()?.manga?.let { localManga ->
+		try {
+			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))
+		} catch (e: IOException) {
+			local?.await()?.manga?.also { localManga ->
 				send(MangaDetails(localManga, null, localManga.description?.parseAsHtml(withImages = false), true))
-				return@channelFlow
-			}
+			} ?: throw e
 		}
-		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))
 	}
 
 	private suspend fun getDetails(seed: Manga) = runCatchingCancellable {

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

@@ -197,6 +197,11 @@ class DetailsFragment :
 					drawableTop = ContextCompat.getDrawable(context, R.drawable.ic_state_abandoned)
 				}
 
+				MangaState.PAUSED -> infoLayout.textViewState.apply {
+					textAndVisible = resources.getString(R.string.state_paused)
+					drawableTop = ContextCompat.getDrawable(context, R.drawable.ic_action_pause)
+				}
+
 				null -> infoLayout.textViewState.isVisible = false
 			}
 			if (manga.source == MangaSource.LOCAL) {

app/src/main/kotlin/org/koitharu/kotatsu/explore/domain/ExploreRepository.kt

@@ -9,6 +9,7 @@ import org.koitharu.kotatsu.explore.data.MangaSourcesRepository
 import org.koitharu.kotatsu.history.data.HistoryRepository
 import org.koitharu.kotatsu.parsers.model.ContentType
 import org.koitharu.kotatsu.parsers.model.Manga
+import org.koitharu.kotatsu.parsers.model.MangaListFilter
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.util.runCatchingCancellable
 import org.koitharu.kotatsu.suggestions.domain.TagsBlacklist
@@ -73,7 +74,15 @@ class ExploreRepository @Inject constructor(
 		val tag = tags.firstNotNullOfOrNull { title ->
 			availableTags.find { x -> x.title.almostEquals(title, 0.4f) }
 		}
-		val list = repository.getList(0, setOfNotNull(tag), order).asArrayList()
+		val list = repository.getList(
+			offset = 0,
+			filter = MangaListFilter.Advanced(
+				sortOrder = order,
+				tags = setOfNotNull(tag),
+				locale = null,
+				states = emptySet(),
+			),
+		).asArrayList()
 		if (settings.isSuggestionsExcludeNsfw) {
 			list.removeAll { it.isNsfw }
 		}

app/src/main/kotlin/org/koitharu/kotatsu/explore/domain/RecoverMangaUseCase.kt

@@ -5,6 +5,7 @@ import org.koitharu.kotatsu.core.parser.MangaDataRepository
 import org.koitharu.kotatsu.core.parser.MangaRepository
 import org.koitharu.kotatsu.core.util.ext.printStackTraceDebug
 import org.koitharu.kotatsu.parsers.model.Manga
+import org.koitharu.kotatsu.parsers.model.MangaListFilter
 import org.koitharu.kotatsu.parsers.util.runCatchingCancellable
 import javax.inject.Inject
 
@@ -18,7 +19,7 @@ class RecoverMangaUseCase @Inject constructor(
 			return@runCatchingCancellable null
 		}
 		val repository = repositoryFactory.create(manga.source)
-		val list = repository.getList(offset = 0, query = manga.title)
+		val list = repository.getList(offset = 0, filter = MangaListFilter.Search(manga.title))
 		val newManga = list.find { x -> x.title == manga.title }?.let {
 			repository.getDetails(it)
 		} ?: return@runCatchingCancellable null

app/src/main/kotlin/org/koitharu/kotatsu/filter/ui/FilterAdapter.kt

@@ -19,6 +19,8 @@ class FilterAdapter(
 	init {
 		addDelegate(ListItemType.FILTER_SORT, filterSortDelegate(listener))
 		addDelegate(ListItemType.FILTER_TAG, filterTagDelegate(listener))
+		addDelegate(ListItemType.FILTER_TAG_MULTI, filterTagMultipleDelegate(listener))
+		addDelegate(ListItemType.FILTER_STATE, filterStateDelegate(listener))
 		addDelegate(ListItemType.HEADER, listHeaderAD(listener))
 		addDelegate(ListItemType.STATE_LOADING, loadingStateAD())
 		addDelegate(ListItemType.FOOTER_LOADING, loadingFooterAD())

app/src/main/kotlin/org/koitharu/kotatsu/filter/ui/FilterAdapterDelegates.kt

@@ -4,6 +4,7 @@ import android.widget.TextView
 import com.hannesdorfmann.adapterdelegates4.dsl.adapterDelegate
 import com.hannesdorfmann.adapterdelegates4.dsl.adapterDelegateViewBinding
 import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.core.model.titleResId
 import org.koitharu.kotatsu.core.ui.model.titleRes
 import org.koitharu.kotatsu.core.util.ext.setChecked
 import org.koitharu.kotatsu.databinding.ItemCheckableMultipleBinding
@@ -27,14 +28,48 @@ fun filterSortDelegate(
 	}
 }
 
-fun filterTagDelegate(
+fun filterStateDelegate(
 	listener: OnFilterChangedListener,
-) = adapterDelegateViewBinding<FilterItem.Tag, ListModel, ItemCheckableMultipleBinding>(
+) = adapterDelegateViewBinding<FilterItem.State, ListModel, ItemCheckableMultipleBinding>(
 	{ layoutInflater, parent -> ItemCheckableMultipleBinding.inflate(layoutInflater, parent, false) },
 ) {
 
 	itemView.setOnClickListener {
-		listener.onTagItemClick(item)
+		listener.onStateItemClick(item)
+	}
+
+	bind { payloads ->
+		binding.root.setText(item.state.titleResId)
+		binding.root.setChecked(item.isChecked, payloads.isNotEmpty())
+	}
+}
+
+fun filterTagDelegate(
+	listener: OnFilterChangedListener,
+) = adapterDelegateViewBinding<FilterItem.Tag, ListModel, ItemCheckableSingleBinding>(
+	{ layoutInflater, parent -> ItemCheckableSingleBinding.inflate(layoutInflater, parent, false) },
+	on = { item, _, _ -> item is FilterItem.Tag && !item.isMultiple },
+) {
+
+	itemView.setOnClickListener {
+		listener.onTagItemClick(item, isFromChip = false)
+	}
+
+	bind { payloads ->
+		binding.root.text = item.tag.title
+		binding.root.setChecked(item.isChecked, payloads.isNotEmpty())
+	}
+}
+
+fun filterTagMultipleDelegate(
+	listener: OnFilterChangedListener,
+) = adapterDelegateViewBinding<FilterItem.Tag, ListModel, ItemCheckableMultipleBinding>(
+	{ layoutInflater, parent -> ItemCheckableMultipleBinding.inflate(layoutInflater, parent, false) },
+	on = { item, _, _ -> item is FilterItem.Tag && item.isMultiple },
+) {
+
+	itemView.setOnClickListener {
+		listener.onTagItemClick(item, isFromChip = false)
 	}
 
 	bind { payloads ->

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

@@ -28,11 +28,11 @@ import org.koitharu.kotatsu.core.util.ext.require
 import org.koitharu.kotatsu.core.util.ext.sortedByOrdinal
 import org.koitharu.kotatsu.filter.ui.model.FilterHeaderModel
 import org.koitharu.kotatsu.filter.ui.model.FilterItem
-import org.koitharu.kotatsu.filter.ui.model.FilterState
 import org.koitharu.kotatsu.list.ui.model.ListHeader
 import org.koitharu.kotatsu.list.ui.model.ListModel
 import org.koitharu.kotatsu.list.ui.model.LoadingFooter
 import org.koitharu.kotatsu.list.ui.model.LoadingState
+import org.koitharu.kotatsu.parsers.model.MangaListFilter
 import org.koitharu.kotatsu.parsers.model.MangaTag
 import org.koitharu.kotatsu.parsers.util.SuspendLazy
 import org.koitharu.kotatsu.parsers.util.runCatchingCancellable
@@ -55,7 +55,8 @@ class FilterCoordinator @Inject constructor(
 
 	private val coroutineScope = lifecycle.lifecycleScope
 	private val repository = mangaRepositoryFactory.create(savedStateHandle.require(RemoteListFragment.ARG_SOURCE))
-	private val currentState = MutableStateFlow(FilterState(repository.defaultSortOrder, emptySet()))
+	private val currentState =
+		MutableStateFlow(MangaListFilter.Advanced(repository.defaultSortOrder, emptySet(), null, emptySet()))
 	private var searchQuery = MutableStateFlow("")
 	private val localTags = SuspendLazy {
 		dataRepository.findTags(repository.source)
@@ -68,7 +69,12 @@ class FilterCoordinator @Inject constructor(
 	override val header: StateFlow<FilterHeaderModel> = getHeaderFlow().stateIn(
 		scope = coroutineScope + Dispatchers.Default,
 		started = SharingStarted.Lazily,
-		initialValue = FilterHeaderModel(emptyList(), repository.defaultSortOrder, false),
+		initialValue = FilterHeaderModel(
+			chips = emptyList(),
+			sortOrder = repository.defaultSortOrder,
+			hasSelectedTags = false,
+			allowMultipleTags = repository.isMultipleTagsSupported,
+		),
 	)
 
 	init {
@@ -81,24 +87,48 @@ class FilterCoordinator @Inject constructor(
 
 	override fun onSortItemClick(item: FilterItem.Sort) {
 		currentState.update { oldValue ->
-			FilterState(item.order, oldValue.tags)
+			oldValue.copy(sortOrder = item.order)
 		}
 		repository.defaultSortOrder = item.order
 	}
 
-	override fun onTagItemClick(item: FilterItem.Tag) {
+	override fun onTagItemClick(item: FilterItem.Tag, isFromChip: Boolean) {
 		currentState.update { oldValue ->
-			val newTags = if (item.isChecked) {
+			val newTags = if (!item.isMultiple) {
+				if (isFromChip && item.isChecked) {
+					emptySet()
+				} else {
+					setOf(item.tag)
+				}
+			} else if (item.isChecked) {
 				oldValue.tags - item.tag
 			} else {
 				oldValue.tags + item.tag
 			}
-			FilterState(oldValue.sortOrder, newTags)
+			oldValue.copy(tags = newTags)
+		}
+	}
+
+	override fun onStateItemClick(item: FilterItem.State) {
+		currentState.update { oldValue ->
+			val newStates = if (item.isChecked) {
+				oldValue.states - item.state
+			} else {
+				oldValue.states + item.state
+			}
+			oldValue.copy(states = newStates)
 		}
 	}
 
 	override fun onListHeaderClick(item: ListHeader, view: View) {
-		reset()
+		currentState.update { oldValue ->
+			oldValue.copy(
+				sortOrder = oldValue.sortOrder,
+				tags = if (item.payload == R.string.genres) emptySet() else oldValue.tags,
+				locale = null,
+				states = if (item.payload == R.string.state) emptySet() else oldValue.states,
+			)
+		}
 	}
 
 	fun observeAvailableTags(): Flow<Set<MangaTag>?> = flow {
@@ -112,13 +142,13 @@ class FilterCoordinator @Inject constructor(
 
 	fun setTags(tags: Set<MangaTag>) {
 		currentState.update { oldValue ->
-			FilterState(oldValue.sortOrder, tags)
+			oldValue.copy(tags = tags)
 		}
 	}
 
 	fun reset() {
 		currentState.update { oldValue ->
-			FilterState(oldValue.sortOrder, emptySet())
+			oldValue.copy(oldValue.sortOrder, emptySet(), null, emptySet())
 		}
 	}
 
@@ -133,7 +163,12 @@ class FilterCoordinator @Inject constructor(
 		observeAvailableTags(),
 	) { state, available ->
 		val chips = createChipsList(state, available.orEmpty(), 8)
-		FilterHeaderModel(chips, state.sortOrder, state.tags.isNotEmpty())
+		FilterHeaderModel(
+			chips = chips,
+			sortOrder = state.sortOrder,
+			hasSelectedTags = state.tags.isNotEmpty(),
+			allowMultipleTags = repository.isMultipleTagsSupported,
+		)
 	}
 
 	private fun getItemsFlow() = combine(
@@ -156,7 +191,7 @@ class FilterCoordinator @Inject constructor(
 	}
 
 	private suspend fun createChipsList(
-		filterState: FilterState,
+		filterState: MangaListFilter.Advanced,
 		availableTags: Set<MangaTag>,
 		limit: Int,
 	): List<ChipsView.ChipModel> {
@@ -205,12 +240,14 @@ class FilterCoordinator @Inject constructor(
 	@WorkerThread
 	private fun buildFilterList(
 		allTags: TagsWrapper,
-		state: FilterState,
+		state: MangaListFilter.Advanced,
 		query: String,
 	): List<ListModel> {
 		val sortOrders = repository.sortOrders.sortedByOrdinal()
+		val states = repository.states
 		val tags = mergeTags(state.tags, allTags.tags).toList()
-		val list = ArrayList<ListModel>(tags.size + sortOrders.size + 3)
+		val list = ArrayList<ListModel>(tags.size + states.size + sortOrders.size + 4)
+		val isMultiTag = repository.isMultipleTagsSupported
 		if (query.isEmpty()) {
 			if (sortOrders.isNotEmpty()) {
 				list.add(ListHeader(R.string.sort_order))
@@ -218,10 +255,28 @@ class FilterCoordinator @Inject constructor(
 					FilterItem.Sort(it, isSelected = it == state.sortOrder)
 				}
 			}
+			if (states.isNotEmpty()) {
+				list.add(
+					ListHeader(
+						textRes = R.string.state,
+						buttonTextRes = if (state.states.isEmpty()) 0 else R.string.reset,
+						payload = R.string.state,
+					),
+				)
+				states.mapTo(list) {
+					FilterItem.State(it, isChecked = it in state.states)
+				}
+			}
 			if (allTags.isLoading || allTags.isError || tags.isNotEmpty()) {
-				list.add(ListHeader(R.string.genres, if (state.tags.isEmpty()) 0 else R.string.reset))
+				list.add(
+					ListHeader(
+						textRes = R.string.genres,
+						buttonTextRes = if (state.tags.isEmpty()) 0 else R.string.reset,
+						payload = R.string.genres,
+					),
+				)
 				tags.mapTo(list) {
-					FilterItem.Tag(it, isChecked = it in state.tags)
+					FilterItem.Tag(it, isMultiple = isMultiTag, isChecked = it in state.tags)
 				}
 			}
 			if (allTags.isError) {
@@ -232,7 +287,7 @@ class FilterCoordinator @Inject constructor(
 		} else {
 			tags.mapNotNullTo(list) {
 				if (it.title.contains(query, ignoreCase = true)) {
-					FilterItem.Tag(it, isChecked = it in state.tags)
+					FilterItem.Tag(it, isMultiple = isMultiTag, isChecked = it in state.tags)
 				} else {
 					null
 				}

app/src/main/kotlin/org/koitharu/kotatsu/filter/ui/FilterHeaderFragment.kt

@@ -39,7 +39,8 @@ class FilterHeaderFragment : BaseFragment<FragmentFilterHeaderBinding>(), ChipsV
 		if (tag == null) {
 			FilterSheetFragment.show(parentFragmentManager)
 		} else {
-			filter.onTagItemClick(FilterItem.Tag(tag, !chip.isChecked))
+			val filterItem = FilterItem.Tag(tag, filter.header.value.allowMultipleTags, !chip.isChecked)
+			filter.onTagItemClick(filterItem, isFromChip = true)
 		}
 	}
 

app/src/main/kotlin/org/koitharu/kotatsu/filter/ui/OnFilterChangedListener.kt

@@ -7,5 +7,7 @@ interface OnFilterChangedListener : ListHeaderClickListener {
 
 	fun onSortItemClick(item: FilterItem.Sort)
 
-	fun onTagItemClick(item: FilterItem.Tag)
+	fun onTagItemClick(item: FilterItem.Tag, isFromChip: Boolean)
+
+	fun onStateItemClick(item: FilterItem.State)
 }

app/src/main/kotlin/org/koitharu/kotatsu/filter/ui/model/FilterHeaderModel.kt

@@ -7,6 +7,7 @@ class FilterHeaderModel(
 	val chips: Collection<ChipsView.ChipModel>,
 	val sortOrder: SortOrder?,
 	val hasSelectedTags: Boolean,
+	val allowMultipleTags: Boolean,
 ) {
 
 	val textSummary: String
@@ -19,6 +20,7 @@ class FilterHeaderModel(
 		other as FilterHeaderModel
 
 		if (chips != other.chips) return false
+		if (allowMultipleTags != other.allowMultipleTags) return false
 		return sortOrder == other.sortOrder
 		// Not need to check hasSelectedTags
 
@@ -26,6 +28,7 @@ class FilterHeaderModel(
 
 	override fun hashCode(): Int {
 		var result = chips.hashCode()
+		result = 31 * result + allowMultipleTags.hashCode()
 		result = 31 * result + (sortOrder?.hashCode() ?: 0)
 		return result
 	}

app/src/main/kotlin/org/koitharu/kotatsu/filter/ui/model/FilterItem.kt

@@ -3,6 +3,7 @@ package org.koitharu.kotatsu.filter.ui.model
 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.MangaState
 import org.koitharu.kotatsu.parsers.model.MangaTag
 import org.koitharu.kotatsu.parsers.model.SortOrder
 
@@ -28,11 +29,12 @@ sealed interface FilterItem : ListModel {
 
 	data class Tag(
 		val tag: MangaTag,
+		val isMultiple: Boolean,
 		val isChecked: Boolean,
 	) : FilterItem {
 
 		override fun areItemsTheSame(other: ListModel): Boolean {
-			return other is Tag && other.tag == tag
+			return other is Tag && other.isMultiple == isMultiple && other.tag == tag
 		}
 
 		override fun getChangePayload(previousState: ListModel): Any? {
@@ -44,6 +46,24 @@ sealed interface FilterItem : ListModel {
 		}
 	}
 
+	data class State(
+		val state: MangaState,
+		val isChecked: Boolean
+	) : FilterItem {
+
+		override fun areItemsTheSame(other: ListModel): Boolean {
+			return other is State && other.state == state
+		}
+
+		override fun getChangePayload(previousState: ListModel): Any? {
+			return if (previousState is State && previousState.isChecked != isChecked) {
+				ListModelDiffCallback.PAYLOAD_CHECKED_CHANGED
+			} else {
+				super.getChangePayload(previousState)
+			}
+		}
+	}
+
 	data class Error(
 		@StringRes val textResId: Int,
 	) : FilterItem {

app/src/main/kotlin/org/koitharu/kotatsu/filter/ui/model/FilterState.kt

@@ -1,9 +0,0 @@
-package org.koitharu.kotatsu.filter.ui.model
-
-import org.koitharu.kotatsu.parsers.model.MangaTag
-import org.koitharu.kotatsu.parsers.model.SortOrder
-
-data class FilterState(
-	val sortOrder: SortOrder?,
-	val tags: Set<MangaTag>,
-)

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

@@ -4,6 +4,8 @@ enum class ListItemType {
 
 	FILTER_SORT,
 	FILTER_TAG,
+	FILTER_TAG_MULTI,
+	FILTER_STATE,
 	HEADER,
 	MANGA_LIST,
 	MANGA_LIST_DETAILED,

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

@@ -29,6 +29,8 @@ class TypedListSpacingDecoration(
 		when (itemType) {
 			ListItemType.FILTER_SORT,
 			ListItemType.FILTER_TAG,
+			ListItemType.FILTER_TAG_MULTI,
+			ListItemType.FILTER_STATE,
 			-> outRect.set(0)
 
 			ListItemType.HEADER,

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

@@ -10,6 +10,7 @@ import org.koitharu.kotatsu.core.util.ext.require
 import org.koitharu.kotatsu.core.util.ext.sortedByOrdinal
 import org.koitharu.kotatsu.favourites.domain.FavouritesRepository
 import org.koitharu.kotatsu.list.domain.ListSortOrder
+import org.koitharu.kotatsu.parsers.util.runCatchingCancellable
 import javax.inject.Inject
 
 @HiltViewModel
@@ -54,7 +55,7 @@ class ListConfigViewModel @Inject constructor(
 	}?.sortedByOrdinal()
 
 	fun getSelectedSortOrder(): ListSortOrder? = when (section) {
-		is ListConfigSection.Favorites -> runBlocking { favouritesRepository.getCategory(section.categoryId).order }
+		is ListConfigSection.Favorites -> getCategorySortOrder(section.categoryId)
 		ListConfigSection.General -> null
 		ListConfigSection.History -> settings.historySortOrder
 		ListConfigSection.Suggestions -> ListSortOrder.RELEVANCE // TODO
@@ -73,4 +74,10 @@ class ListConfigViewModel @Inject constructor(
 			ListConfigSection.Suggestions -> Unit
 		}
 	}
+
+	private fun getCategorySortOrder(id: Long): ListSortOrder = runBlocking {
+		runCatchingCancellable {
+			favouritesRepository.getCategory(id).order
+		}.getOrDefault(ListSortOrder.NEWEST)
+	}
 }

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

@@ -98,7 +98,8 @@ class PreviewFragment : BaseFragment<FragmentPreviewBinding>(), View.OnClickList
 		if (filter == null) {
 			startActivity(MangaListActivity.newIntent(requireContext(), setOf(tag)))
 		} else {
-			filter.onTagItemClick(FilterItem.Tag(tag, false))
+			val filterItem = FilterItem.Tag(tag, filter.header.value.allowMultipleTags, false)
+			filter.onTagItemClick(filterItem, isFromChip = false)
 			closeSelf()
 		}
 	}

app/src/main/kotlin/org/koitharu/kotatsu/local/data/CbzFilter.kt

@@ -1,31 +1,20 @@
 package org.koitharu.kotatsu.local.data
 
 import android.net.Uri
+import org.koitharu.kotatsu.core.util.ext.URI_SCHEME_ZIP
 import java.io.File
-import java.io.FileFilter
-import java.io.FilenameFilter
-import java.util.Locale
 
-class CbzFilter : FileFilter, FilenameFilter {
-
-	override fun accept(dir: File, name: String): Boolean {
-		return isFileSupported(name)
-	}
-
-	override fun accept(pathname: File?): Boolean {
-		return isFileSupported(pathname?.name ?: return false)
-	}
-
-	companion object {
-
-		fun isFileSupported(name: String): Boolean {
-			val ext = name.substringAfterLast('.', "").lowercase(Locale.ROOT)
-			return ext == "cbz" || ext == "zip"
-		}
-
-		fun isUriSupported(uri: Uri): Boolean {
-			val scheme = uri.scheme?.lowercase(Locale.ROOT)
-			return scheme != null && scheme == "cbz" || scheme == "zip"
-		}
-	}
+private fun isCbzExtension(ext: String?): Boolean {
+	return ext.equals("cbz", ignoreCase = true) || ext.equals("zip", ignoreCase = true)
+}
+
+fun hasCbzExtension(string: String): Boolean {
+	val ext = string.substringAfterLast('.', "")
+	return isCbzExtension(ext)
+}
+
+fun File.hasCbzExtension() = isCbzExtension(extension)
+
+fun Uri.isZipUri() = scheme.let {
+	it == URI_SCHEME_ZIP || it == "cbz" || it == "zip"
 }

app/src/main/kotlin/org/koitharu/kotatsu/local/data/ImageFileFilter.kt

@@ -1,29 +1,11 @@
 package org.koitharu.kotatsu.local.data
 
 import java.io.File
-import java.io.FileFilter
-import java.io.FilenameFilter
-import java.util.Locale
-import java.util.zip.ZipEntry
 
-class ImageFileFilter : FilenameFilter, FileFilter {
-
-	override fun accept(dir: File, name: String): Boolean {
-		val ext = name.substringAfterLast('.', "").lowercase(Locale.ROOT)
-		return isExtensionValid(ext)
-	}
-
-	override fun accept(pathname: File?): Boolean {
-		val ext = pathname?.extension?.lowercase(Locale.ROOT) ?: return false
-		return isExtensionValid(ext)
-	}
-
-	fun accept(entry: ZipEntry): Boolean {
-		val ext = entry.name.substringAfterLast('.', "").lowercase(Locale.ROOT)
-		return isExtensionValid(ext)
-	}
-
-	fun isExtensionValid(ext: String): Boolean {
-		return ext == "png" || ext == "jpg" || ext == "jpeg" || ext == "webp"
-	}
+fun hasImageExtension(string: String): Boolean {
+	val ext = string.substringAfterLast('.', "")
+	return ext.equals("png", ignoreCase = true) || ext.equals("jpg", ignoreCase = true)
+		|| ext.equals("jpeg", ignoreCase = true) || ext.equals("webp", ignoreCase = true)
 }
+
+fun hasImageExtension(file: File) = hasImageExtension(file.name)

app/src/main/kotlin/org/koitharu/kotatsu/local/data/LocalMangaRepository.kt

@@ -14,6 +14,7 @@ import kotlinx.coroutines.runInterruptible
 import org.koitharu.kotatsu.core.model.isLocal
 import org.koitharu.kotatsu.core.parser.MangaRepository
 import org.koitharu.kotatsu.core.prefs.AppSettings
+import org.koitharu.kotatsu.core.util.AlphanumComparator
 import org.koitharu.kotatsu.core.util.CompositeMutex2
 import org.koitharu.kotatsu.core.util.ext.children
 import org.koitharu.kotatsu.core.util.ext.deleteAwait
@@ -25,8 +26,10 @@ import org.koitharu.kotatsu.local.data.output.LocalMangaUtil
 import org.koitharu.kotatsu.local.domain.model.LocalManga
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaChapter
+import org.koitharu.kotatsu.parsers.model.MangaListFilter
 import org.koitharu.kotatsu.parsers.model.MangaPage
 import org.koitharu.kotatsu.parsers.model.MangaSource
+import org.koitharu.kotatsu.parsers.model.MangaState
 import org.koitharu.kotatsu.parsers.model.MangaTag
 import org.koitharu.kotatsu.parsers.model.SortOrder
 import org.koitharu.kotatsu.parsers.util.runCatchingCancellable
@@ -47,7 +50,9 @@ class LocalMangaRepository @Inject constructor(
 	override val source = MangaSource.LOCAL
 	private val locks = CompositeMutex2<Long>()
 
+	override val isMultipleTagsSupported: Boolean = true
 	override val sortOrders: Set<SortOrder> = EnumSet.of(SortOrder.ALPHABETICAL, SortOrder.RATING, SortOrder.NEWEST)
+	override val states = emptySet<MangaState>()
 
 	override var defaultSortOrder: SortOrder
 		get() = settings.localListOrder
@@ -55,33 +60,32 @@ class LocalMangaRepository @Inject constructor(
 			settings.localListOrder = value
 		}
 
-	override suspend fun getList(offset: Int, query: String): List<Manga> {
+	override suspend fun getList(offset: Int, filter: MangaListFilter?): List<Manga> {
 		if (offset > 0) {
 			return emptyList()
 		}
 		val list = getRawList()
-		if (query.isNotEmpty()) {
-			list.retainAll { x -> x.isMatchesQuery(query) }
-		}
-		return list.unwrap()
-	}
+		when (filter) {
+			is MangaListFilter.Search -> {
+				list.retainAll { x -> x.isMatchesQuery(filter.query) }
+			}
 
-	override suspend fun getList(offset: Int, tags: Set<MangaTag>?, sortOrder: SortOrder?): List<Manga> {
-		if (offset > 0) {
-			return emptyList()
-		}
-		val list = getRawList()
-		if (!tags.isNullOrEmpty()) {
-			list.retainAll { x -> x.containsTags(tags) }
-		}
-		when (sortOrder) {
-			SortOrder.ALPHABETICAL -> list.sortWith(compareBy(org.koitharu.kotatsu.core.util.AlphanumComparator()) { x -> x.manga.title })
-			SortOrder.RATING -> list.sortByDescending { it.manga.rating }
-			SortOrder.NEWEST,
-			SortOrder.UPDATED,
-			-> list.sortByDescending { it.createdAt }
+			is MangaListFilter.Advanced -> {
+				if (filter.tags.isNotEmpty()) {
+					list.retainAll { x -> x.containsTags(filter.tags) }
+				}
+				when (filter.sortOrder) {
+					SortOrder.ALPHABETICAL -> list.sortWith(compareBy(AlphanumComparator()) { x -> x.manga.title })
+					SortOrder.RATING -> list.sortByDescending { it.manga.rating }
+					SortOrder.NEWEST,
+					SortOrder.UPDATED,
+					-> list.sortByDescending { it.createdAt }
 
-			else -> Unit
+					else -> Unit
+				}
+			}
+
+			null -> Unit
 		}
 		return list.unwrap()
 	}

app/src/main/kotlin/org/koitharu/kotatsu/local/data/LocalStorageManager.kt

@@ -14,6 +14,7 @@ import kotlinx.coroutines.runInterruptible
 import kotlinx.coroutines.withContext
 import okhttp3.Cache
 import org.koitharu.kotatsu.core.prefs.AppSettings
+import org.koitharu.kotatsu.core.util.ext.URI_SCHEME_FILE
 import org.koitharu.kotatsu.core.util.ext.computeSize
 import org.koitharu.kotatsu.core.util.ext.getStorageName
 import org.koitharu.kotatsu.core.util.ext.resolveFile
@@ -84,7 +85,7 @@ class LocalStorageManager @Inject constructor(
 	}
 
 	suspend fun resolveUri(uri: Uri): File? = runInterruptible(Dispatchers.IO) {
-		if (uri.scheme == "file") {
+		if (uri.scheme == URI_SCHEME_FILE) {
 			uri.toFile()
 		} else {
 			uri.resolveFile(context)

app/src/main/kotlin/org/koitharu/kotatsu/local/data/importer/SingleMangaImporter.kt

@@ -15,9 +15,9 @@ import okio.source
 import org.koitharu.kotatsu.core.exceptions.UnsupportedFileException
 import org.koitharu.kotatsu.core.util.ext.resolveName
 import org.koitharu.kotatsu.core.util.ext.writeAllCancellable
-import org.koitharu.kotatsu.local.data.CbzFilter
 import org.koitharu.kotatsu.local.data.LocalStorageChanges
 import org.koitharu.kotatsu.local.data.LocalStorageManager
+import org.koitharu.kotatsu.local.data.hasCbzExtension
 import org.koitharu.kotatsu.local.data.input.LocalMangaInput
 import org.koitharu.kotatsu.local.domain.model.LocalManga
 import java.io.File
@@ -46,7 +46,7 @@ class SingleMangaImporter @Inject constructor(
 	private suspend fun importFile(uri: Uri): LocalManga = withContext(Dispatchers.IO) {
 		val contentResolver = storageManager.contentResolver
 		val name = contentResolver.resolveName(uri) ?: throw IOException("Cannot fetch name from uri: $uri")
-		if (!CbzFilter.isFileSupported(name)) {
+		if (!hasCbzExtension(name)) {
 			throw UnsupportedFileException("Unsupported file on $uri")
 		}
 		val dest = File(getOutputDir(), name)

app/src/main/kotlin/org/koitharu/kotatsu/local/data/input/LocalMangaDirInput.kt

@@ -6,12 +6,12 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.runInterruptible
 import org.koitharu.kotatsu.core.util.AlphanumComparator
 import org.koitharu.kotatsu.core.util.ext.creationTime
-import org.koitharu.kotatsu.core.util.ext.listFilesRecursive
 import org.koitharu.kotatsu.core.util.ext.longHashCode
 import org.koitharu.kotatsu.core.util.ext.toListSorted
-import org.koitharu.kotatsu.local.data.CbzFilter
-import org.koitharu.kotatsu.local.data.ImageFileFilter
+import org.koitharu.kotatsu.core.util.ext.walkCompat
 import org.koitharu.kotatsu.local.data.MangaIndex
+import org.koitharu.kotatsu.local.data.hasCbzExtension
+import org.koitharu.kotatsu.local.data.hasImageExtension
 import org.koitharu.kotatsu.local.data.output.LocalMangaOutput
 import org.koitharu.kotatsu.local.domain.model.LocalManga
 import org.koitharu.kotatsu.parsers.model.Manga
@@ -91,16 +91,12 @@ class LocalMangaDirInput(root: File) : LocalMangaInput(root) {
 	override suspend fun getPages(chapter: MangaChapter): List<MangaPage> = runInterruptible(Dispatchers.IO) {
 		val file = chapter.url.toUri().toFile()
 		if (file.isDirectory) {
-			file.listFilesRecursive(ImageFileFilter())
+			file.walkCompat()
+				.filter { hasImageExtension(it) }
 				.toListSorted(compareBy(AlphanumComparator()) { x -> x.name })
 				.map {
 					val pageUri = it.toUri().toString()
-					MangaPage(
-						id = pageUri.longHashCode(),
-						url = pageUri,
-						preview = null,
-						source = MangaSource.LOCAL,
-					)
+					MangaPage(pageUri.longHashCode(), pageUri, null, MangaSource.LOCAL)
 				}
 		} else {
 			ZipFile(file).use { zip ->
@@ -124,20 +120,20 @@ class LocalMangaDirInput(root: File) : LocalMangaInput(root) {
 
 	private fun String.toHumanReadable() = replace("_", " ").toCamelCase()
 
-	private fun getChaptersFiles(): List<File> = root.listFilesRecursive(CbzFilter())
-		.toListSorted(compareBy(AlphanumComparator()) { x -> x.name })
+	private fun getChaptersFiles(): List<File> = root.walkCompat()
+		.filter { it.hasCbzExtension() }
+		.toListSorted(compareBy(AlphanumComparator()) { it.name })
 
 	private fun findFirstImageEntry(): String? {
-		val filter = ImageFileFilter()
-		root.listFilesRecursive(filter).firstOrNull()?.let {
-			return it.toUri().toString()
-		}
-		val cbz = root.listFilesRecursive(CbzFilter()).firstOrNull() ?: return null
-		return ZipFile(cbz).use { zip ->
-			zip.entries().asSequence()
-				.firstOrNull { x -> !x.isDirectory && filter.accept(x) }
-				?.let { entry -> zipUri(cbz, entry.name) }
-		}
+		return root.walkCompat().firstOrNull { hasImageExtension(it) }?.toUri()?.toString()
+			?: run {
+				val cbz = root.walkCompat().firstOrNull { it.hasCbzExtension() } ?: return null
+				ZipFile(cbz).use { zip ->
+					zip.entries().asSequence()
+						.firstOrNull { !it.isDirectory && hasImageExtension(it.name) }
+						?.let { zipUri(cbz, it.name) }
+				}
+			}
 	}
 
 	private fun fileUri(base: File, name: String): String {

app/src/main/kotlin/org/koitharu/kotatsu/local/data/input/LocalMangaInput.kt

@@ -7,7 +7,7 @@ import kotlinx.coroutines.flow.channelFlow
 import kotlinx.coroutines.flow.firstOrNull
 import kotlinx.coroutines.flow.flowOn
 import kotlinx.coroutines.launch
-import org.koitharu.kotatsu.local.data.CbzFilter
+import org.koitharu.kotatsu.local.data.hasCbzExtension
 import org.koitharu.kotatsu.local.domain.model.LocalManga
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaChapter
@@ -39,7 +39,7 @@ sealed class LocalMangaInput(
 
 		fun ofOrNull(file: File): LocalMangaInput? = when {
 			file.isDirectory -> LocalMangaDirInput(file)
-			CbzFilter.isFileSupported(file.name) -> LocalMangaZipInput(file)
+			hasCbzExtension(file.name) -> LocalMangaZipInput(file)
 			else -> null
 		}
 

app/src/main/kotlin/org/koitharu/kotatsu/local/domain/DeleteLocalMangaUseCase.kt

@@ -1,11 +1,11 @@
 package org.koitharu.kotatsu.local.domain
 
 import org.koitharu.kotatsu.core.model.isLocal
+import org.koitharu.kotatsu.core.util.ext.printStackTraceDebug
 import org.koitharu.kotatsu.history.data.HistoryRepository
 import org.koitharu.kotatsu.local.data.LocalMangaRepository
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.util.runCatchingCancellable
-import org.koitharu.kotatsu.core.util.ext.printStackTraceDebug
 import java.io.IOException
 import javax.inject.Inject
 
@@ -27,7 +27,7 @@ class DeleteLocalMangaUseCase @Inject constructor(
 	}
 
 	suspend operator fun invoke(ids: Set<Long>) {
-		val list = localMangaRepository.getList(0, null, null)
+		val list = localMangaRepository.getList(0, null)
 		var removed = 0
 		for (manga in list) {
 			if (manga.id in ids) {

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

@@ -7,6 +7,7 @@ import android.net.Uri
 import androidx.annotation.AnyThread
 import androidx.collection.LongSparseArray
 import androidx.collection.set
+import androidx.core.net.toUri
 import dagger.hilt.android.ActivityRetainedLifecycle
 import dagger.hilt.android.lifecycle.RetainedLifecycle
 import dagger.hilt.android.qualifiers.ApplicationContext
@@ -33,17 +34,18 @@ import org.koitharu.kotatsu.core.parser.RemoteMangaRepository
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.util.FileSize
 import org.koitharu.kotatsu.core.util.RetainedLifecycleCoroutineScope
+import org.koitharu.kotatsu.core.util.ext.URI_SCHEME_ZIP
 import org.koitharu.kotatsu.core.util.ext.ensureSuccess
+import org.koitharu.kotatsu.core.util.ext.exists
 import org.koitharu.kotatsu.core.util.ext.getCompletionResultOrNull
-import org.koitharu.kotatsu.core.util.ext.isNotEmpty
 import org.koitharu.kotatsu.core.util.ext.isPowerSaveMode
+import org.koitharu.kotatsu.core.util.ext.isTargetNotEmpty
 import org.koitharu.kotatsu.core.util.ext.printStackTraceDebug
 import org.koitharu.kotatsu.core.util.ext.ramAvailable
 import org.koitharu.kotatsu.core.util.ext.withProgress
 import org.koitharu.kotatsu.core.util.progress.ProgressDeferred
-import org.koitharu.kotatsu.core.zip.ZipPool
-import org.koitharu.kotatsu.local.data.CbzFilter
 import org.koitharu.kotatsu.local.data.PagesCache
+import org.koitharu.kotatsu.local.data.isZipUri
 import org.koitharu.kotatsu.parsers.model.MangaPage
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.reader.ui.pager.ReaderPage
@@ -71,13 +73,12 @@ class PageLoader @Inject constructor(
 
 	val loaderScope = RetainedLifecycleCoroutineScope(lifecycle) + InternalErrorHandler() + Dispatchers.Default
 
-	private val tasks = LongSparseArray<ProgressDeferred<File, Float>>()
+	private val tasks = LongSparseArray<ProgressDeferred<Uri, Float>>()
 	private val semaphore = Semaphore(3)
 	private val convertLock = Mutex()
 	private val prefetchLock = Mutex()
 	private var repository: MangaRepository? = null
 	private val prefetchQueue = LinkedList<MangaPage>()
-	private val zipPool = ZipPool(2)
 	private val counter = AtomicInteger(0)
 	private var prefetchQueueLimit = PREFETCH_LIMIT_DEFAULT // TODO adaptive
 
@@ -85,7 +86,6 @@ class PageLoader @Inject constructor(
 		synchronized(tasks) {
 			tasks.clear()
 		}
-		zipPool.evictAll()
 	}
 
 	fun isPrefetchApplicable(): Boolean {
@@ -113,7 +113,7 @@ class PageLoader @Inject constructor(
 		}
 	}
 
-	fun loadPageAsync(page: MangaPage, force: Boolean): ProgressDeferred<File, Float> {
+	fun loadPageAsync(page: MangaPage, force: Boolean): ProgressDeferred<Uri, Float> {
 		var task = tasks[page.id]?.takeIf { it.isValid() }
 		if (force) {
 			task?.cancel()
@@ -127,7 +127,7 @@ class PageLoader @Inject constructor(
 		return task
 	}
 
-	suspend fun loadPage(page: MangaPage, force: Boolean): File {
+	suspend fun loadPage(page: MangaPage, force: Boolean): Uri {
 		return loadPageAsync(page, force).await()
 	}
 
@@ -167,11 +167,11 @@ class PageLoader @Inject constructor(
 		}
 	}
 
-	private fun loadPageAsyncImpl(page: MangaPage, skipCache: Boolean): ProgressDeferred<File, Float> {
+	private fun loadPageAsyncImpl(page: MangaPage, skipCache: Boolean): ProgressDeferred<Uri, Float> {
 		val progress = MutableStateFlow(PROGRESS_UNDEFINED)
 		val deferred = loaderScope.async {
 			if (!skipCache) {
-				cache.get(page.url)?.let { return@async it }
+				cache.get(page.url)?.let { return@async it.toUri() }
 			}
 			counter.incrementAndGet()
 			try {
@@ -195,26 +195,24 @@ class PageLoader @Inject constructor(
 		}
 	}
 
-	private suspend fun loadPageImpl(page: MangaPage, progress: MutableStateFlow<Float>): File = semaphore.withPermit {
+	private suspend fun loadPageImpl(page: MangaPage, progress: MutableStateFlow<Float>): Uri = semaphore.withPermit {
 		val pageUrl = getPageUrl(page)
 		check(pageUrl.isNotBlank()) { "Cannot obtain full image url" }
 		val uri = Uri.parse(pageUrl)
-		return if (CbzFilter.isUriSupported(uri)) {
-			runInterruptible(Dispatchers.IO) {
-				zipPool[uri]
-			}.use {
-				cache.put(pageUrl, it)
+		return if (uri.isZipUri()) {
+			if (uri.scheme == URI_SCHEME_ZIP) {
+				uri
+			} else { // legacy uri
+				uri.buildUpon().scheme(URI_SCHEME_ZIP).build()
 			}
 		} else {
 			val request = createPageRequest(page, pageUrl)
 			imageProxyInterceptor.interceptPageRequest(request, okHttp).ensureSuccess().use { response ->
-				val body = checkNotNull(response.body) {
-					"Null response"
-				}
+				val body = checkNotNull(response.body) { "Null response body" }
 				body.withProgress(progress).use {
 					cache.put(pageUrl, it.source())
 				}
-			}
+			}.toUri()
 		}
 	}
 
@@ -222,9 +220,9 @@ class PageLoader @Inject constructor(
 		return context.ramAvailable <= FileSize.MEGABYTES.convert(PREFETCH_MIN_RAM_MB, FileSize.BYTES)
 	}
 
-	private fun Deferred<File>.isValid(): Boolean {
-		return getCompletionResultOrNull()?.map { file ->
-			file.exists() && file.isNotEmpty()
+	private fun Deferred<Uri>.isValid(): Boolean {
+		return getCompletionResultOrNull()?.map { uri ->
+			uri.exists() && uri.isTargetNotEmpty()
 		}?.getOrDefault(false) ?: true
 	}
 

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

@@ -15,7 +15,8 @@ import okhttp3.HttpUrl.Companion.toHttpUrl
 import okio.IOException
 import okio.buffer
 import okio.sink
-import okio.source
+import org.koitharu.kotatsu.core.util.ext.source
+import org.koitharu.kotatsu.core.util.ext.toFileOrNull
 import org.koitharu.kotatsu.core.util.ext.writeAllCancellable
 import org.koitharu.kotatsu.parsers.model.MangaPage
 import org.koitharu.kotatsu.parsers.util.toFileNameSafe
@@ -41,8 +42,8 @@ class PageSaveHelper @Inject constructor(
 		saveLauncher: ActivityResultLauncher<String>,
 	): Uri {
 		val pageUrl = pageLoader.getPageUrl(page)
-		val pageFile = pageLoader.loadPage(page, force = false)
-		val proposedName = getProposedFileName(pageUrl, pageFile)
+		val pageUri = pageLoader.loadPage(page, force = false)
+		val proposedName = getProposedFileName(pageUrl, pageUri)
 		val destination = withContext(Dispatchers.Main) {
 			suspendCancellableCoroutine { cont ->
 				continuation = cont
@@ -54,7 +55,7 @@ class PageSaveHelper @Inject constructor(
 		runInterruptible(Dispatchers.IO) {
 			contentResolver.openOutputStream(destination)?.sink()?.buffer()
 		}?.use { output ->
-			pageFile.source().use { input ->
+			pageUri.source().use { input ->
 				output.writeAllCancellable(input)
 			}
 		} ?: throw IOException("Output stream is null")
@@ -65,7 +66,7 @@ class PageSaveHelper @Inject constructor(
 		resume(uri)
 	} != null
 
-	private suspend fun getProposedFileName(url: String, file: File): String {
+	private suspend fun getProposedFileName(url: String, fileUri: Uri): String {
 		var name = if (url.startsWith("cbz://")) {
 			requireNotNull(url.toUri().fragment)
 		} else {
@@ -74,7 +75,7 @@ class PageSaveHelper @Inject constructor(
 		var extension = name.substringAfterLast('.', "")
 		name = name.substringBeforeLast('.')
 		if (extension.length !in 2..4) {
-			val mimeType = getImageMimeType(file)
+			val mimeType = fileUri.toFileOrNull()?.let { file -> getImageMimeType(file) }
 			extension = if (mimeType != null) {
 				MimeTypeMap.getSingleton().getExtensionFromMimeType(mimeType) ?: EXTENSION_FALLBACK
 			} else {

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

@@ -27,7 +27,6 @@ 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
@@ -119,9 +118,12 @@ class ReaderViewModel @Inject constructor(
 		valueProducer = { isReaderKeepScreenOn },
 	)
 
+	val isWebtoonZooEnabled = observeIsWebtoonZoomEnabled()
+		.stateIn(viewModelScope + Dispatchers.Default, SharingStarted.Lazily, false)
+
 	val isZoomControlsEnabled = getObserveIsZoomControlEnabled().flatMapLatest { zoom ->
 		if (zoom) {
-			combine(readerMode, observeIsWebtoonZoomEnabled()) { mode, ze -> ze || mode != ReaderMode.WEBTOON }
+			combine(readerMode, isWebtoonZooEnabled) { mode, ze -> ze || mode != ReaderMode.WEBTOON }
 		} else {
 			flowOf(false)
 		}
@@ -260,8 +262,8 @@ class ReaderViewModel @Inject constructor(
 		stateChangeJob = launchJob(Dispatchers.Default) {
 			prevJob?.cancelAndJoin()
 			loadingJob?.join()
-			if (BuildConfig.DEBUG && pages.size != content.value.pages.size) {
-				throw IllegalStateException("Concurrent pages modification")
+			if (pages.size != content.value.pages.size) {
+				return@launchJob // TODO
 			}
 			pages.getOrNull(position)?.let { page ->
 				currentState.update { cs ->

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

@@ -36,6 +36,9 @@ class ReaderSettings(
 	val colorFilter: ReaderColorFilter?
 		get() = colorFilterFlow.value?.takeUnless { it.isEmpty }
 
+	val isReaderOptimizationEnabled: Boolean
+		get() = settings.isReaderOptimizationEnabled
+
 	val bitmapConfig: Bitmap.Config
 		get() = if (settings.is32BitColorsEnabled) {
 			Bitmap.Config.ARGB_8888
@@ -104,7 +107,8 @@ class ReaderSettings(
 				key == AppSettings.KEY_ZOOM_MODE ||
 				key == AppSettings.KEY_PAGES_NUMBERS ||
 				key == AppSettings.KEY_READER_BACKGROUND ||
-				key == AppSettings.KEY_32BIT_COLOR
+				key == AppSettings.KEY_32BIT_COLOR ||
+				key == AppSettings.KEY_READER_OPTIMIZE
 			) {
 				notifyChanged()
 			}

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

@@ -2,13 +2,16 @@ package org.koitharu.kotatsu.reader.ui.pager
 
 import android.content.Context
 import androidx.annotation.CallSuper
-import androidx.recyclerview.widget.RecyclerView
+import androidx.lifecycle.LifecycleOwner
 import androidx.viewbinding.ViewBinding
 import org.koitharu.kotatsu.core.exceptions.resolve.ExceptionResolver
 import org.koitharu.kotatsu.core.os.NetworkState
+import org.koitharu.kotatsu.core.ui.list.lifecycle.LifecycleAwareViewHolder
+import org.koitharu.kotatsu.core.util.ext.isLowRamDevice
 import org.koitharu.kotatsu.databinding.LayoutPageInfoBinding
 import org.koitharu.kotatsu.reader.domain.PageLoader
 import org.koitharu.kotatsu.reader.ui.config.ReaderSettings
+import org.koitharu.kotatsu.reader.ui.pager.PageHolderDelegate.State
 
 abstract class BasePageHolder<B : ViewBinding>(
 	protected val binding: B,
@@ -16,7 +19,8 @@ abstract class BasePageHolder<B : ViewBinding>(
 	protected val settings: ReaderSettings,
 	networkState: NetworkState,
 	exceptionResolver: ExceptionResolver,
-) : RecyclerView.ViewHolder(binding.root), PageHolderDelegate.Callback {
+	lifecycleOwner: LifecycleOwner,
+) : LifecycleAwareViewHolder(binding.root, lifecycleOwner), PageHolderDelegate.Callback {
 
 	@Suppress("LeakingThis")
 	protected val delegate = PageHolderDelegate(loader, settings, this, networkState, exceptionResolver)
@@ -43,6 +47,13 @@ abstract class BasePageHolder<B : ViewBinding>(
 
 	protected abstract fun onBind(data: ReaderPage)
 
+	override fun onResume() {
+		super.onResume()
+		if (delegate.state == State.ERROR && !delegate.isLoading()) {
+			boundData?.let { delegate.retry(it.toMangaPage(), isFromUser = false) }
+		}
+	}
+
 	@CallSuper
 	open fun onAttachedToWindow() {
 		delegate.onAttachedToWindow()
@@ -57,4 +68,10 @@ abstract class BasePageHolder<B : ViewBinding>(
 	open fun onRecycled() {
 		delegate.onRecycle()
 	}
+
+	protected fun getBackgroundDownsampling() = when {
+		!settings.isReaderOptimizationEnabled -> 1
+		context.isLowRamDevice() -> 8
+		else -> 4
+	}
 }

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

@@ -1,6 +1,7 @@
 package org.koitharu.kotatsu.reader.ui.pager
 
 import android.net.Uri
+import androidx.core.net.toFile
 import androidx.core.net.toUri
 import androidx.lifecycle.Observer
 import com.davemorrissey.labs.subscaleview.DefaultOnImageEventListener
@@ -20,10 +21,10 @@ import kotlinx.coroutines.yield
 import org.koitharu.kotatsu.core.exceptions.resolve.ExceptionResolver
 import org.koitharu.kotatsu.core.os.NetworkState
 import org.koitharu.kotatsu.core.util.ext.printStackTraceDebug
+import org.koitharu.kotatsu.core.util.ext.toFileOrNull
 import org.koitharu.kotatsu.parsers.model.MangaPage
 import org.koitharu.kotatsu.reader.domain.PageLoader
 import org.koitharu.kotatsu.reader.ui.config.ReaderSettings
-import java.io.File
 import java.io.IOException
 
 class PageHolderDelegate(
@@ -35,15 +36,20 @@ class PageHolderDelegate(
 ) : DefaultOnImageEventListener, Observer<ReaderSettings> {
 
 	private val scope = loader.loaderScope + Dispatchers.Main.immediate
-	private var state = State.EMPTY
+	var state = State.EMPTY
+		private set
 	private var job: Job? = null
-	private var file: File? = null
+	private var uri: Uri? = null
 	private var error: Throwable? = null
 
 	init {
-		callback.onConfigChanged()
+		scope.launch(Dispatchers.Main) { // the same as post() -- wait until child fields init
+			callback.onConfigChanged()
+		}
 	}
 
+	fun isLoading() = job?.isActive == true
+
 	fun onBind(page: MangaPage) {
 		val prevJob = job
 		job = scope.launch {
@@ -52,12 +58,15 @@ class PageHolderDelegate(
 		}
 	}
 
-	fun retry(page: MangaPage) {
+	fun retry(page: MangaPage, isFromUser: Boolean) {
 		val prevJob = job
 		job = scope.launch {
 			prevJob?.cancelAndJoin()
 			val e = error
 			if (e != null && ExceptionResolver.canResolve(e)) {
+				if (!isFromUser) {
+					return@launch
+				}
 				exceptionResolver.resolve(e)
 			}
 			doLoad(page, force = true)
@@ -79,15 +88,15 @@ class PageHolderDelegate(
 
 	fun onRecycle() {
 		state = State.EMPTY
-		file = null
+		uri = null
 		error = null
 		job?.cancel()
 	}
 
 	fun reload() {
-		if (state == State.SHOWN ) {
-			file?.let {
-				callback.onImageReady(it.toUri())
+		if (state == State.SHOWN) {
+			uri?.let {
+				callback.onImageReady(it)
 			}
 		}
 	}
@@ -106,10 +115,10 @@ class PageHolderDelegate(
 
 	override fun onImageLoadError(e: Throwable) {
 		e.printStackTraceDebug()
-		val file = this.file
+		val uri = this.uri
 		error = e
-		if (state == State.LOADED && e is IOException && file != null && file.exists()) {
-			tryConvert(file, e)
+		if (state == State.LOADED && e is IOException && uri != null && uri.toFileOrNull()?.exists() != false) {
+			tryConvert(uri, e)
 		} else {
 			state = State.ERROR
 			callback.onError(e)
@@ -123,12 +132,13 @@ class PageHolderDelegate(
 		callback.onConfigChanged()
 	}
 
-	private fun tryConvert(file: File, e: Exception) {
+	private fun tryConvert(uri: Uri, e: Exception) {
 		val prevJob = job
 		job = scope.launch {
 			prevJob?.join()
 			state = State.CONVERTING
 			try {
+				val file = uri.toFile()
 				loader.convertInPlace(file)
 				state = State.CONVERTED
 				callback.onImageReady(file.toUri())
@@ -149,14 +159,14 @@ class PageHolderDelegate(
 		yield()
 		try {
 			val task = loader.loadPageAsync(data, force)
-			file = coroutineScope {
+			uri = coroutineScope {
 				val progressObserver = observeProgress(this, task.progressAsFlow())
 				val file = task.await()
 				progressObserver.cancelAndJoin()
 				file
 			}
 			state = State.LOADED
-			callback.onImageReady(checkNotNull(file).toUri())
+			callback.onImageReady(checkNotNull(uri))
 		} catch (e: CancellationException) {
 			throw e
 		} catch (e: Throwable) {
@@ -166,7 +176,7 @@ class PageHolderDelegate(
 			callback.onError(e)
 			if (e is IOException && !networkState.value) {
 				networkState.awaitForConnection()
-				retry(data)
+				retry(data, isFromUser = false)
 			}
 		}
 	}
@@ -176,7 +186,7 @@ class PageHolderDelegate(
 		.onEach { callback.onProgressChanged((100 * it).toInt()) }
 		.launchIn(scope)
 
-	private enum class State {
+	enum class State {
 		EMPTY, LOADING, LOADED, CONVERTING, CONVERTED, SHOWING, SHOWN, ERROR
 	}
 

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

@@ -11,12 +11,13 @@ import android.view.ViewGroup
 import androidx.core.view.children
 import com.google.android.material.snackbar.Snackbar
 import dagger.hilt.android.AndroidEntryPoint
-import kotlinx.coroutines.async
 import kotlinx.coroutines.coroutineScope
+import kotlinx.coroutines.launch
 import kotlinx.coroutines.yield
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.os.NetworkState
 import org.koitharu.kotatsu.core.prefs.ReaderAnimation
+import org.koitharu.kotatsu.core.ui.list.lifecycle.PagerLifecycleDispatcher
 import org.koitharu.kotatsu.core.util.ext.doOnPageChanged
 import org.koitharu.kotatsu.core.util.ext.findCurrentViewHolder
 import org.koitharu.kotatsu.core.util.ext.observe
@@ -46,6 +47,8 @@ class ReversedReaderFragment : BaseReaderFragment<FragmentReaderStandardBinding>
 	@Inject
 	lateinit var pageLoader: PageLoader
 
+	private var pagerLifecycleDispatcher: PagerLifecycleDispatcher? = null
+
 	override fun onCreateViewBinding(
 		inflater: LayoutInflater,
 		container: ViewGroup?,
@@ -62,6 +65,9 @@ class ReversedReaderFragment : BaseReaderFragment<FragmentReaderStandardBinding>
 				recyclerView?.defaultFocusHighlightEnabled = false
 			}
 			PagerEventSupplier(this).attach()
+			pagerLifecycleDispatcher = PagerLifecycleDispatcher(this).also {
+				registerOnPageChangeCallback(it)
+			}
 		}
 
 		viewModel.pageAnimation.observe(viewLifecycleOwner) {
@@ -80,6 +86,7 @@ class ReversedReaderFragment : BaseReaderFragment<FragmentReaderStandardBinding>
 	}
 
 	override fun onDestroyView() {
+		pagerLifecycleDispatcher = null
 		requireViewBinding().pager.adapter = null
 		super.onDestroyView()
 	}
@@ -132,15 +139,16 @@ class ReversedReaderFragment : BaseReaderFragment<FragmentReaderStandardBinding>
 
 	override suspend fun onPagesChanged(pages: List<ReaderPage>, pendingState: ReaderState?) = coroutineScope {
 		val reversedPages = pages.asReversed()
-		val items = async {
+		val items = launch {
 			requireAdapter().setItems(reversedPages)
 			yield()
+			pagerLifecycleDispatcher?.invalidate()
 		}
 		if (pendingState != null) {
 			val position = reversedPages.indexOfLast {
 				it.chapterId == pendingState.chapterId && it.index == pendingState.page
 			}
-			items.await()
+			items.join()
 			if (position != -1) {
 				requireViewBinding().pager.setCurrentItem(position, false)
 				notifyPageChanged(position)
@@ -149,7 +157,7 @@ class ReversedReaderFragment : BaseReaderFragment<FragmentReaderStandardBinding>
 					.show()
 			}
 		} else {
-			items.await()
+			items.join()
 		}
 	}
 

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

@@ -30,7 +30,7 @@ open class PageHolder(
 	settings: ReaderSettings,
 	networkState: NetworkState,
 	exceptionResolver: ExceptionResolver,
-) : BasePageHolder<ItemPageBinding>(binding, loader, settings, networkState, exceptionResolver),
+) : BasePageHolder<ItemPageBinding>(binding, loader, settings, networkState, exceptionResolver, owner),
 	View.OnClickListener,
 	ZoomControl.ZoomControlListener {
 
@@ -45,12 +45,22 @@ open class PageHolder(
 		binding.textViewNumber.isVisible = settings.isPagesNumbersEnabled
 	}
 
+	override fun onResume() {
+		super.onResume()
+		binding.ssiv.downsampling = 1
+	}
+
+	override fun onPause() {
+		super.onPause()
+		binding.ssiv.downsampling = getBackgroundDownsampling()
+	}
+
 	override fun onConfigChanged() {
 		super.onConfigChanged()
-		@Suppress("SENSELESS_COMPARISON")
-		if (settings.applyBitmapConfig(binding.ssiv) && delegate != null) {
+		if (settings.applyBitmapConfig(binding.ssiv)) {
 			delegate.reload()
 		}
+		binding.ssiv.downsampling = if (isResumed()) 1 else getBackgroundDownsampling()
 	}
 
 	@SuppressLint("SetTextI18n")
@@ -129,7 +139,7 @@ open class PageHolder(
 
 	final override fun onClick(v: View) {
 		when (v.id) {
-			R.id.button_retry -> delegate.retry(boundData?.toMangaPage() ?: return)
+			R.id.button_retry -> delegate.retry(boundData?.toMangaPage() ?: return, isFromUser = true)
 			R.id.button_error_details -> delegate.showErrorDetails(boundData?.url)
 		}
 	}

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

@@ -11,12 +11,13 @@ import android.view.ViewGroup
 import androidx.core.view.children
 import com.google.android.material.snackbar.Snackbar
 import dagger.hilt.android.AndroidEntryPoint
-import kotlinx.coroutines.async
 import kotlinx.coroutines.coroutineScope
+import kotlinx.coroutines.launch
 import kotlinx.coroutines.yield
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.os.NetworkState
 import org.koitharu.kotatsu.core.prefs.ReaderAnimation
+import org.koitharu.kotatsu.core.ui.list.lifecycle.PagerLifecycleDispatcher
 import org.koitharu.kotatsu.core.util.ext.doOnPageChanged
 import org.koitharu.kotatsu.core.util.ext.findCurrentViewHolder
 import org.koitharu.kotatsu.core.util.ext.observe
@@ -42,6 +43,8 @@ class PagerReaderFragment : BaseReaderFragment<FragmentReaderStandardBinding>(),
 	@Inject
 	lateinit var pageLoader: PageLoader
 
+	private var pagerLifecycleDispatcher: PagerLifecycleDispatcher? = null
+
 	override fun onCreateViewBinding(
 		inflater: LayoutInflater,
 		container: ViewGroup?,
@@ -61,6 +64,9 @@ class PagerReaderFragment : BaseReaderFragment<FragmentReaderStandardBinding>(),
 				recyclerView?.defaultFocusHighlightEnabled = false
 			}
 			PagerEventSupplier(this).attach()
+			pagerLifecycleDispatcher = PagerLifecycleDispatcher(this).also {
+				registerOnPageChangeCallback(it)
+			}
 		}
 
 		viewModel.pageAnimation.observe(viewLifecycleOwner) {
@@ -79,6 +85,7 @@ class PagerReaderFragment : BaseReaderFragment<FragmentReaderStandardBinding>(),
 	}
 
 	override fun onDestroyView() {
+		pagerLifecycleDispatcher = null
 		requireViewBinding().pager.adapter = null
 		super.onDestroyView()
 	}
@@ -107,15 +114,16 @@ class PagerReaderFragment : BaseReaderFragment<FragmentReaderStandardBinding>(),
 
 	override suspend fun onPagesChanged(pages: List<ReaderPage>, pendingState: ReaderState?) =
 		coroutineScope {
-			val items = async {
+			val items = launch {
 				requireAdapter().setItems(pages)
 				yield()
+				pagerLifecycleDispatcher?.invalidate()
 			}
 			if (pendingState != null) {
 				val position = pages.indexOfFirst {
 					it.chapterId == pendingState.chapterId && it.index == pendingState.page
 				}
-				items.await()
+				items.join()
 				if (position != -1) {
 					requireViewBinding().pager.setCurrentItem(position, false)
 					notifyPageChanged(position)
@@ -124,7 +132,7 @@ class PagerReaderFragment : BaseReaderFragment<FragmentReaderStandardBinding>(),
 						.show()
 				}
 			} else {
-				items.await()
+				items.join()
 			}
 		}
 

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

@@ -25,7 +25,7 @@ class WebtoonHolder(
 	settings: ReaderSettings,
 	networkState: NetworkState,
 	exceptionResolver: ExceptionResolver,
-) : BasePageHolder<ItemPageWebtoonBinding>(binding, loader, settings, networkState, exceptionResolver),
+) : BasePageHolder<ItemPageWebtoonBinding>(binding, loader, settings, networkState, exceptionResolver, owner),
 	View.OnClickListener {
 
 	private var scrollToRestore = 0
@@ -40,10 +40,20 @@ class WebtoonHolder(
 
 	override fun onConfigChanged() {
 		super.onConfigChanged()
-		@Suppress("SENSELESS_COMPARISON")
-		if (settings.applyBitmapConfig(binding.ssiv) && delegate != null) {
+		if (settings.applyBitmapConfig(binding.ssiv)) {
 			delegate.reload()
 		}
+		// FIXME binding.ssiv.downsampling = if (isResumed()) 1 else getBackgroundDownsampling()
+	}
+
+	override fun onResume() {
+		super.onResume()
+		binding.ssiv.downsampling = 1
+	}
+
+	override fun onPause() {
+		super.onPause()
+		// FIXME binding.ssiv.downsampling = getBackgroundDownsampling()
 	}
 
 	override fun onBind(data: ReaderPage) {
@@ -107,7 +117,7 @@ class WebtoonHolder(
 
 	override fun onClick(v: View) {
 		when (v.id) {
-			R.id.button_retry -> delegate.retry(boundData?.toMangaPage() ?: return)
+			R.id.button_retry -> delegate.retry(boundData?.toMangaPage() ?: return, isFromUser = true)
 			R.id.button_error_details -> delegate.showErrorDetails(boundData?.url)
 		}
 	}

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

@@ -6,13 +6,15 @@ import android.view.ViewGroup
 import android.view.animation.DecelerateInterpolator
 import com.google.android.material.snackbar.Snackbar
 import dagger.hilt.android.AndroidEntryPoint
-import kotlinx.coroutines.async
 import kotlinx.coroutines.coroutineScope
+import kotlinx.coroutines.launch
 import kotlinx.coroutines.yield
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.os.NetworkState
+import org.koitharu.kotatsu.core.ui.list.lifecycle.RecyclerViewLifecycleDispatcher
 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
@@ -32,6 +34,8 @@ class WebtoonReaderFragment : BaseReaderFragment<FragmentReaderWebtoonBinding>()
 
 	private val scrollInterpolator = DecelerateInterpolator()
 
+	private var recyclerLifecycleDispatcher: RecyclerViewLifecycleDispatcher? = null
+
 	override fun onCreateViewBinding(
 		inflater: LayoutInflater,
 		container: ViewGroup?,
@@ -43,10 +47,17 @@ class WebtoonReaderFragment : BaseReaderFragment<FragmentReaderWebtoonBinding>()
 			setHasFixedSize(true)
 			adapter = readerAdapter
 			addOnPageScrollListener(PageScrollListener())
+			recyclerLifecycleDispatcher = RecyclerViewLifecycleDispatcher().also {
+				addOnScrollListener(it)
+			}
+		}
+		viewModel.isWebtoonZooEnabled.observe(viewLifecycleOwner) {
+			binding.frame.isZoomEnable = it
 		}
 	}
 
 	override fun onDestroyView() {
+		recyclerLifecycleDispatcher = null
 		requireViewBinding().recyclerView.adapter = null
 		super.onDestroyView()
 	}
@@ -60,15 +71,18 @@ class WebtoonReaderFragment : BaseReaderFragment<FragmentReaderWebtoonBinding>()
 	)
 
 	override suspend fun onPagesChanged(pages: List<ReaderPage>, pendingState: ReaderState?) = coroutineScope {
-		val setItems = async {
+		val setItems = launch {
 			requireAdapter().setItems(pages)
 			yield()
+			viewBinding?.recyclerView?.let { rv ->
+				recyclerLifecycleDispatcher?.invalidate(rv)
+			}
 		}
 		if (pendingState != null) {
 			val position = pages.indexOfFirst {
 				it.chapterId == pendingState.chapterId && it.index == pendingState.page
 			}
-			setItems.await()
+			setItems.join()
 			if (position != -1) {
 				with(requireViewBinding().recyclerView) {
 					firstVisibleItemPosition = position
@@ -83,7 +97,7 @@ class WebtoonReaderFragment : BaseReaderFragment<FragmentReaderWebtoonBinding>()
 					.show()
 			}
 		} else {
-			setItems.await()
+			setItems.join()
 		}
 	}
 

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

@@ -51,7 +51,7 @@ class WebtoonScalingFrame @JvmOverloads constructor(
 	private val targetHitRect = Rect()
 	private var animator: ValueAnimator? = null
 
-	var isZoomEnable = true
+	var isZoomEnable = false
 		set(value) {
 			field = value
 			if (scale != 1f) {

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

@@ -19,8 +19,8 @@ import okio.source
 import org.koitharu.kotatsu.core.network.ImageProxyInterceptor
 import org.koitharu.kotatsu.core.network.MangaHttpClient
 import org.koitharu.kotatsu.core.parser.MangaRepository
-import org.koitharu.kotatsu.local.data.CbzFilter
 import org.koitharu.kotatsu.local.data.PagesCache
+import org.koitharu.kotatsu.local.data.isZipUri
 import org.koitharu.kotatsu.local.data.util.withExtraCloseable
 import org.koitharu.kotatsu.parsers.model.MangaPage
 import org.koitharu.kotatsu.parsers.util.mimeType
@@ -56,7 +56,7 @@ class MangaPageFetcher(
 
 	private suspend fun loadPage(pageUrl: String): SourceResult {
 		val uri = pageUrl.toUri()
-		return if (CbzFilter.isUriSupported(uri)) {
+		return if (uri.isZipUri()) {
 			runInterruptible(Dispatchers.IO) {
 				val zip = ZipFile(uri.schemeSpecificPart)
 				val entry = zip.getEntry(uri.fragment)

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

@@ -30,7 +30,6 @@ import org.koitharu.kotatsu.download.ui.worker.DownloadWorker
 import org.koitharu.kotatsu.explore.domain.ExploreRepository
 import org.koitharu.kotatsu.filter.ui.FilterCoordinator
 import org.koitharu.kotatsu.filter.ui.MangaFilter
-import org.koitharu.kotatsu.filter.ui.model.FilterState
 import org.koitharu.kotatsu.list.domain.ListExtraProvider
 import org.koitharu.kotatsu.list.ui.MangaListViewModel
 import org.koitharu.kotatsu.list.ui.model.EmptyState
@@ -40,6 +39,7 @@ import org.koitharu.kotatsu.list.ui.model.toErrorFooter
 import org.koitharu.kotatsu.list.ui.model.toErrorState
 import org.koitharu.kotatsu.list.ui.model.toUi
 import org.koitharu.kotatsu.parsers.model.Manga
+import org.koitharu.kotatsu.parsers.model.MangaListFilter
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.model.MangaTag
 import javax.inject.Inject
@@ -122,7 +122,7 @@ open class RemoteListViewModel @Inject constructor(
 		applyFilter(tags)
 	}
 
-	protected fun loadList(filterState: FilterState, append: Boolean): Job {
+	protected fun loadList(filterState: MangaListFilter.Advanced, append: Boolean): Job {
 		loadingJob?.let {
 			if (it.isActive) return it
 		}
@@ -131,8 +131,7 @@ open class RemoteListViewModel @Inject constructor(
 				listError.value = null
 				val list = repository.getList(
 					offset = if (append) mangaList.value?.size ?: 0 else 0,
-					sortOrder = filterState.sortOrder,
-					tags = filterState.tags,
+					filter = filterState,
 				)
 				val oldList = mangaList.getAndUpdate { oldList ->
 					if (!append || oldList.isNullOrEmpty()) {

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

@@ -26,6 +26,7 @@ import org.koitharu.kotatsu.list.ui.model.toErrorFooter
 import org.koitharu.kotatsu.list.ui.model.toErrorState
 import org.koitharu.kotatsu.list.ui.model.toUi
 import org.koitharu.kotatsu.parsers.model.Manga
+import org.koitharu.kotatsu.parsers.model.MangaListFilter
 import javax.inject.Inject
 
 @HiltViewModel
@@ -101,7 +102,7 @@ class SearchViewModel @Inject constructor(
 				listError.value = null
 				val list = repository.getList(
 					offset = if (append) mangaList.value?.size ?: 0 else 0,
-					query = query,
+					filter = MangaListFilter.Search(query)
 				)
 				if (!append) {
 					mangaList.value = list

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

@@ -35,6 +35,7 @@ import org.koitharu.kotatsu.list.ui.model.LoadingFooter
 import org.koitharu.kotatsu.list.ui.model.LoadingState
 import org.koitharu.kotatsu.list.ui.model.toUi
 import org.koitharu.kotatsu.parsers.model.Manga
+import org.koitharu.kotatsu.parsers.model.MangaListFilter
 import org.koitharu.kotatsu.parsers.util.runCatchingCancellable
 import javax.inject.Inject
 
@@ -115,7 +116,7 @@ class MultiSearchViewModel @Inject constructor(
 			launch {
 				val item = runCatchingCancellable {
 					semaphore.withPermit {
-						mangaRepositoryFactory.create(source).getList(offset = 0, query = q)
+						mangaRepositoryFactory.create(source).getList(offset = 0, filter = MangaListFilter.Search(q))
 							.toUi(ListMode.GRID, extraProvider)
 					}
 				}.fold(

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

@@ -20,6 +20,7 @@ import org.koitharu.kotatsu.core.util.LocaleComparator
 import org.koitharu.kotatsu.core.util.ext.getLocalesConfig
 import org.koitharu.kotatsu.core.util.ext.postDelayed
 import org.koitharu.kotatsu.core.util.ext.setDefaultValueCompat
+import org.koitharu.kotatsu.core.util.ext.sortedWithSafe
 import org.koitharu.kotatsu.core.util.ext.toList
 import org.koitharu.kotatsu.parsers.util.names
 import org.koitharu.kotatsu.parsers.util.toTitleCase
@@ -107,7 +108,7 @@ class AppearanceSettingsFragment :
 	private fun initLocalePicker(preference: ListPreference) {
 		val locales = preference.context.getLocalesConfig()
 			.toList()
-			.sortedWith(LocaleComparator())
+			.sortedWithSafe(LocaleComparator())
 		preference.entries = Array(locales.size + 1) { i ->
 			if (i == 0) {
 				getString(R.string.automatic)

app/src/main/kotlin/org/koitharu/kotatsu/settings/onboard/OnboardViewModel.kt

@@ -8,6 +8,7 @@ import kotlinx.coroutines.flow.MutableStateFlow
 import org.koitharu.kotatsu.core.ui.BaseViewModel
 import org.koitharu.kotatsu.core.util.ext.map
 import org.koitharu.kotatsu.core.util.ext.mapToSet
+import org.koitharu.kotatsu.core.util.ext.sortedWithSafe
 import org.koitharu.kotatsu.explore.data.MangaSourcesRepository
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.util.mapNotNullToSet
@@ -78,7 +79,7 @@ class OnboardViewModel @Inject constructor(
 				summary = srcs.joinToString { it.title },
 				isChecked = key in selectedLocales,
 			)
-		}.sortedWith(SourceLocaleComparator())
+		}.sortedWithSafe(SourceLocaleComparator())
 	}
 
 	private class SourceLocaleComparator : Comparator<SourceLocale?> {

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

@@ -8,7 +8,8 @@ import org.koitharu.kotatsu.parsers.model.MangaSource
 sealed interface SourceCatalogItem : ListModel {
 
 	data class Source(
-		val source: MangaSource
+		val source: MangaSource,
+		val showSummary: Boolean,
 	) : SourceCatalogItem {
 
 		override fun areItemsTheSame(other: ListModel): Boolean {

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

@@ -6,6 +6,7 @@ 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.model.isNsfw
 import org.koitharu.kotatsu.core.parser.favicon.faviconUri
 import org.koitharu.kotatsu.core.ui.image.FaviconDrawable
@@ -43,6 +44,12 @@ fun sourceCatalogItemSourceAD(
 		} else {
 			item.source.title
 		}
+		if (item.showSummary) {
+			binding.textViewDescription.text = item.source.getSummary(context)
+			binding.textViewDescription.isVisible = true
+		} else {
+			binding.textViewDescription.isVisible = false
+		}
 		val fallbackIcon = FaviconDrawable(context, R.style.FaviconDrawable_Small, item.source.name)
 		binding.imageViewIcon.newImageRequest(lifecycleOwner, item.source.faviconUri())?.run {
 			crossfade(context)

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

@@ -1,34 +1,35 @@
 package org.koitharu.kotatsu.settings.sources.catalog
 
 import android.os.Bundle
+import android.view.MenuItem
 import android.view.View
 import androidx.activity.viewModels
+import androidx.appcompat.widget.SearchView
 import androidx.core.graphics.Insets
+import androidx.core.view.isVisible
 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.getLocaleDisplayName
 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 {
+	AppBarOwner, MenuItem.OnActionExpandListener {
 
 	@Inject
 	lateinit var coil: ImageLoader
@@ -54,9 +55,9 @@ class SourcesCatalogActivity : BaseActivity<ActivitySourcesCatalogBinding>(),
 			ReversibleActionObserver(viewBinding.recyclerView),
 		)
 		viewModel.locale.observe(this) {
-			supportActionBar?.subtitle = it.getLocaleDisplayName()
+			supportActionBar?.subtitle = it.getLocaleDisplayName(this)
 		}
-		addMenuProvider(SourcesCatalogMenuProvider(this, viewModel))
+		addMenuProvider(SourcesCatalogMenuProvider(this, viewModel, this))
 	}
 
 	override fun onWindowInsetsChanged(insets: Insets) {
@@ -83,6 +84,19 @@ class SourcesCatalogActivity : BaseActivity<ActivitySourcesCatalogBinding>(),
 		viewBinding.recyclerView.firstVisibleItemPosition = 0
 	}
 
+	override fun onMenuItemActionExpand(item: MenuItem): Boolean {
+		viewBinding.tabs.isVisible = false
+		val sq = (item.actionView as? SearchView)?.query?.trim()?.toString().orEmpty()
+		viewModel.performSearch(sq)
+		return true
+	}
+
+	override fun onMenuItemActionCollapse(item: MenuItem): Boolean {
+		viewBinding.tabs.isVisible = true
+		viewModel.performSearch(null)
+		return true
+	}
+
 	private fun initTabs() {
 		val tabs = viewBinding.tabs
 		for (type in ContentType.entries) {
@@ -96,12 +110,4 @@ class SourcesCatalogActivity : BaseActivity<ActivitySourcesCatalogBinding>(),
 		}
 		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/SourcesCatalogListProducer.kt

@@ -28,7 +28,7 @@ class SourcesCatalogListProducer @AssistedInject constructor(
 ) : InvalidationTracker.Observer(TABLE_SOURCES), RetainedLifecycle.OnClearedListener {
 
 	private val scope = lifecycle.lifecycleScope
-	private var query: String = ""
+	private var query: String? = null
 	val list = MutableStateFlow(emptyList<SourceCatalogItem>())
 
 	private var job = scope.launch(Dispatchers.Default) {
@@ -54,20 +54,21 @@ class SourcesCatalogListProducer @AssistedInject constructor(
 		}
 	}
 
-	fun setQuery(value: String) {
+	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) }
+		when (val q = query) {
+			null -> sources.retainAll { it.contentType == contentType && it.locale == locale }
+			"" -> return emptyList()
+			else -> sources.retainAll { it.title.contains(q, ignoreCase = true) }
 		}
 		return if (sources.isEmpty()) {
 			listOf(
-				if (query.isEmpty()) {
+				if (query == null) {
 					SourceCatalogItem.Hint(
 						icon = R.drawable.ic_empty_feed,
 						title = R.string.no_manga_sources,
@@ -86,6 +87,7 @@ class SourcesCatalogListProducer @AssistedInject constructor(
 			sources.map {
 				SourceCatalogItem.Source(
 					source = it,
+					showSummary = query != null,
 				)
 			}
 		}

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

@@ -9,12 +9,13 @@ import androidx.appcompat.widget.PopupMenu
 import androidx.appcompat.widget.SearchView
 import androidx.core.view.MenuProvider
 import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.core.util.ext.getLocaleDisplayName
 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,
+	private val expandListener: MenuItem.OnActionExpandListener,
 ) : MenuProvider,
 	MenuItem.OnActionExpandListener,
 	SearchView.OnQueryTextListener {
@@ -40,33 +41,34 @@ class SourcesCatalogMenuProvider(
 
 	override fun onMenuItemActionExpand(item: MenuItem): Boolean {
 		(activity as? AppBarOwner)?.appBar?.setExpanded(false, true)
-		return true
+		return expandListener.onMenuItemActionExpand(item)
 	}
 
 	override fun onMenuItemActionCollapse(item: MenuItem): Boolean {
 		(item.actionView as SearchView).setQuery("", false)
-		return true
+		return expandListener.onMenuItemActionCollapse(item)
 	}
 
 	override fun onQueryTextSubmit(query: String?): Boolean = false
 
 	override fun onQueryTextChange(newText: String?): Boolean {
-		viewModel.performSearch(newText.orEmpty())
+		viewModel.performSearch(newText?.trim().orEmpty())
 		return true
 	}
 
 	private fun showLocalesMenu() {
-		val locales = viewModel.locales
+		val locales = viewModel.locales.map {
+			it to it.getLocaleDisplayName(activity)
+		}
 		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.menu.add(Menu.NONE, Menu.NONE, i, lc.second)
 		}
 		menu.setOnMenuItemClickListener {
-			viewModel.setLocale(locales.getOrNull(it.order)?.language)
+			viewModel.setLocale(locales.getOrNull(it.order)?.first)
 			true
 		}
 		menu.show()

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

@@ -15,7 +15,6 @@ 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
@@ -29,15 +28,15 @@ import javax.inject.Inject
 class SourcesCatalogViewModel @Inject constructor(
 	private val repository: MangaSourcesRepository,
 	private val listProducerFactory: SourcesCatalogListProducer.Factory,
-	private val settings: AppSettings,
+	settings: AppSettings,
 ) : BaseViewModel() {
 
 	private val lifecycle = RetainedLifecycleImpl()
-	private var searchQuery: String = ""
+	private var searchQuery: String? = null
 	val onActionDone = MutableEventFlow<ReversibleAction>()
 	val contentType = MutableStateFlow(ContentType.entries.first())
-	val locales = getLocalesImpl()
-	val locale = MutableStateFlow(locales.firstOrNull()?.language)
+	val locales = repository.allMangaSources.mapToSet { it.locale }
+	val locale = MutableStateFlow(Locale.getDefault().language.takeIf { it in locales })
 
 	val isNsfwDisabled = settings.isNsfwContentDisabled
 
@@ -59,7 +58,7 @@ class SourcesCatalogViewModel @Inject constructor(
 		lifecycle.dispatchOnCleared()
 	}
 
-	fun performSearch(query: String) {
+	fun performSearch(query: String?) {
 		searchQuery = query
 		listProducer.value?.setQuery(query)
 	}
@@ -78,10 +77,4 @@ class SourcesCatalogViewModel @Inject constructor(
 			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/suggestions/ui/SuggestionsWorker.kt

@@ -62,6 +62,7 @@ import org.koitharu.kotatsu.explore.data.MangaSourcesRepository
 import org.koitharu.kotatsu.favourites.domain.FavouritesRepository
 import org.koitharu.kotatsu.history.data.HistoryRepository
 import org.koitharu.kotatsu.parsers.model.Manga
+import org.koitharu.kotatsu.parsers.model.MangaListFilter
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.model.MangaTag
 import org.koitharu.kotatsu.parsers.model.SortOrder
@@ -208,7 +209,15 @@ class SuggestionsWorker @AssistedInject constructor(
 		val tag = tags.firstNotNullOfOrNull { title ->
 			availableTags.find { x -> x.title.almostEquals(title, TAG_EQ_THRESHOLD) }
 		}
-		val list = repository.getList(0, setOfNotNull(tag), order).asArrayList()
+		val list = repository.getList(
+			offset = 0,
+			filter = MangaListFilter.Advanced(
+				sortOrder = order,
+				tags = setOfNotNull(tag),
+				locale = null,
+				states = setOf(),
+			),
+		).asArrayList()
 		if (appSettings.isSuggestionsExcludeNsfw) {
 			list.removeAll { it.isNsfw }
 		}

app/src/main/kotlin/org/koitharu/kotatsu/tracker/domain/Tracker.kt

@@ -1,8 +1,10 @@
 package org.koitharu.kotatsu.tracker.domain
 
 import androidx.annotation.VisibleForTesting
+import coil.request.CachePolicy
 import org.koitharu.kotatsu.core.model.getPreferredBranch
 import org.koitharu.kotatsu.core.parser.MangaRepository
+import org.koitharu.kotatsu.core.parser.RemoteMangaRepository
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.history.data.HistoryRepository
 import org.koitharu.kotatsu.parsers.model.Manga
@@ -76,7 +78,9 @@ class Tracker @Inject constructor(
 	}
 
 	suspend fun fetchUpdates(track: MangaTracking, commit: Boolean): MangaUpdates.Success {
-		val manga = mangaRepositoryFactory.create(track.manga.source).getDetails(track.manga)
+		val repo = mangaRepositoryFactory.create(track.manga.source)
+		require(repo is RemoteMangaRepository) { "Repository ${repo.javaClass.simpleName} is not supported" }
+		val manga = repo.getDetails(track.manga, CachePolicy.WRITE_ONLY)
 		val updates = compare(track, manga, getBranch(manga))
 		if (commit) {
 			repository.saveUpdates(updates)
@@ -120,7 +124,7 @@ class Tracker @Inject constructor(
 					manga = manga,
 					newChapters = emptyList(),
 					isValid = chapters.lastOrNull()?.id == track.lastChapterId,
-					channelId = null
+					channelId = null,
 				)
 			}
 

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

@@ -23,17 +23,34 @@
 		app:shapeAppearance="?shapeAppearanceCornerSmall"
 		tools:src="@tools:sample/avatars" />
 
-	<TextView
-		android:id="@+id/textView_title"
+	<LinearLayout
 		android:layout_width="0dp"
 		android:layout_height="wrap_content"
 		android:layout_marginStart="?android:listPreferredItemPaddingStart"
 		android:layout_marginEnd="?android:listPreferredItemPaddingEnd"
 		android:layout_weight="1"
-		android:ellipsize="end"
-		android:singleLine="true"
-		android:textAppearance="?attr/textAppearanceTitleSmall"
-		tools:text="@tools:sample/lorem[15]" />
+		android:orientation="vertical">
+
+		<TextView
+			android:id="@+id/textView_title"
+			android:layout_width="match_parent"
+			android:layout_height="wrap_content"
+			android:ellipsize="end"
+			android:singleLine="true"
+			android:textAppearance="?attr/textAppearanceTitleSmall"
+			tools:text="@tools:sample/lorem[15]" />
+
+		<TextView
+			android:id="@+id/textView_description"
+			android:layout_width="match_parent"
+			android:layout_height="wrap_content"
+			android:layout_marginTop="2dp"
+			android:ellipsize="end"
+			android:singleLine="true"
+			android:textAppearance="?attr/textAppearanceBodySmall"
+			tools:text="English" />
+
+	</LinearLayout>
 
 	<ImageView
 		android:id="@+id/imageView_add"

app/src/main/res/values-be/strings.xml

@@ -506,4 +506,26 @@
     <string name="backups_output_directory">Вывадны каталог рэзервовых копій</string>
     <string name="speed_value">x%.1f</string>
     <string name="lock_screen_rotation">Блакаванне павароту экрана</string>
+    <string name="sources_catalog">Каталог крыніц</string>
+    <string name="content_type_manga">Манга</string>
+    <string name="source_summary_pattern">%1$s, %2$s</string>
+    <string name="content_type_hentai">Хентай</string>
+    <string name="content_type_comics">Коміксы</string>
+    <string name="catalog">Каталог</string>
+    <string name="manage_sources">Кіраванне крыніцамі</string>
+    <string name="no_manga_sources_found">Па вашаму запыту не знойдзена даступных крыніц мангі</string>
+    <string name="manual">Уручную</string>
+    <string name="source_enabled">Крыніца ўключана</string>
+    <string name="disable_nsfw_summary">Адключыць крыніцы NSFW і схавайць мангу для дарослых са спісу, калі гэта магчыма</string>
+    <string name="no_manga_sources_catalog_text">У гэтым раздзеле няма даступных крыніц, ці ўсе яны маглі быць ужо дададзены.
+\nСачыце за абнаўленнямі</string>
+    <string name="available_d">Даступна: %1$d</string>
+    <string name="content_type_other">Іншае</string>
+    <string name="state_paused">Прыпынена</string>
+    <string name="error_multiple_states_not_supported">Фільтраванне па некалькіх станам не падтрымліваецца гэтай крыніцай мангі</string>
+    <string name="reader_optimize">Памяншэнне спажывання памяці (бэта)</string>
+    <string name="error_multiple_genres_not_supported">Фільтраванне па некалькіх жанрах не падтрымліваецца гэтай крыніцай мангі</string>
+    <string name="error_search_not_supported">Пошук не падтрымліваецца гэтай крыніцай мангі</string>
+    <string name="reader_optimize_summary">Паменшыць якасць закадравых старонак, каб выкарыстоўваць менш памяці</string>
+    <string name="state">Стан</string>
 </resources>

app/src/main/res/values-bn/plurals.xml

@@ -9,8 +9,8 @@
         <item quantity="other">%1$d টি নতুন পর্ব</item>
     </plurals>
     <plurals name="days_ago">
-        <item quantity="one">মাত্র %1$d আগে</item>
-        <item quantity="other">মাত্র %1$d দিন আগে</item>
+        <item quantity="one">মাত্র %1$d দিন আগে</item>
+        <item quantity="other">%1$d দিন আগে</item>
     </plurals>
     <plurals name="months_ago">
         <item quantity="one">প্রায় %1$d মাস আগে</item>
@@ -21,11 +21,11 @@
         <item quantity="other">%1$d টি পর্ব</item>
     </plurals>
     <plurals name="hours_ago">
-        <item quantity="one">%1$d মাত্র ঘন্টা আগে</item>
+        <item quantity="one">মাত্র %1$d ঘন্টা আগে</item>
         <item quantity="other">%1$d ঘন্টা আগে</item>
     </plurals>
     <plurals name="minutes_ago">
         <item quantity="one">মাত্র %1$d মিনিট আগে</item>
-        <item quantity="other">%1$d মিনিটস আগে</item>
+        <item quantity="other">%1$d মিনিট আগে</item>
     </plurals>
 </resources>

app/src/main/res/values-es/strings.xml

@@ -513,11 +513,19 @@
     <string name="content_type_comics">Cómic</string>
     <string name="no_manga_sources_found">No se han encontrado fuentes de manga disponibles en su búsqueda</string>
     <string name="source_enabled">Fuente habilitada</string>
-    <string name="no_manga_sources_catalog_text">Aún no hay fuentes disponibles en esta sección. Permanezca atento</string>
+    <string name="no_manga_sources_catalog_text">No hay fuentes disponibles en esta sección, o puede que ya se hayan añadido todas.
+\nPermanezca atento</string>
     <string name="content_type_other">Otros</string>
     <string name="catalog">Catálogo</string>
     <string name="manage_sources">Gestionar las fuentes</string>
     <string name="manual">Manual</string>
     <string name="disable_nsfw_summary">Desactivar las fuentes NSFW y ocultar el manga para adultos de la lista si es posible</string>
     <string name="available_d">Disponible: %1$d</string>
+    <string name="state_paused">Pausado</string>
+    <string name="error_multiple_states_not_supported">El filtrado por múltiples estados no es compatible con esta fuente del manga</string>
+    <string name="reader_optimize">Reducir el consumo de memoria (beta)</string>
+    <string name="error_multiple_genres_not_supported">Esta fuente del manga no permite filtrar por varios géneros</string>
+    <string name="error_search_not_supported">La búsqueda no es compatible con esta fuente del manga</string>
+    <string name="reader_optimize_summary">Reduce la resolución de las páginas fuera de pantalla para usar menos memoria</string>
+    <string name="state">Estado</string>
 </resources>

app/src/main/res/values-fr/strings.xml

@@ -483,4 +483,49 @@
     <string name="zoom_out">Réduire</string>
     <string name="manga_list">Liste des mangas</string>
     <string name="to_top">En haut</string>
+    <string name="sources_catalog">Sources catalogue</string>
+    <string name="frequency_every_day">Tous les jours</string>
+    <string name="categories">Catégories</string>
+    <string name="list_options">Options de liste</string>
+    <string name="content_type_manga">Mangas</string>
+    <string name="error_multiple_states_not_supported">Filtrer par plusieurs états n\'est pas pris en charge par cette source de mangas</string>
+    <string name="source_summary_pattern">%1$s, %2$s</string>
+    <string name="backup_frequency">Fréquence de création de sauvegarde</string>
+    <string name="content_type_hentai">Hentais</string>
+    <string name="suggest_new_sources">Suggérer de nouvelles sources après la mise à jour de l\'application</string>
+    <string name="periodic_backups_enable">Activer les sauvegardes périodiques</string>
+    <string name="content_type_comics">Comics</string>
+    <string name="catalog">Catalogue</string>
+    <string name="enhanced_colors_summary">Réduit le crénelage, mais peut avoir une incidence sur les performances</string>
+    <string name="frequency_every_2_days">Tous les 2 jours</string>
+    <string name="reader_optimize">Réduire la consommation de mémoire (bêta)</string>
+    <string name="manage_sources">Gérer les sources</string>
+    <string name="no_manga_sources_found">Aucune source de manga disponible trouvée par votre requête</string>
+    <string name="frequency_once_per_week">Une fois par semaine</string>
+    <string name="periodic_backups">Sauvegardes périodiques</string>
+    <string name="frequency_twice_per_month">Deux fois par mois</string>
+    <string name="online_variant">Variante en ligne</string>
+    <string name="error_multiple_genres_not_supported">Filtrer par plusieurs genres n\'est pas pris en charge par cette source manga</string>
+    <string name="lock_screen_rotation">Verrouiller la rotation de l\'écran</string>
+    <string name="by_relevance">Pertinence</string>
+    <string name="state_abandoned">Abandonné</string>
+    <string name="keep_screen_on">Garder l\'écran allumé</string>
+    <string name="error_search_not_supported">La recherche n\'est pas prise en charge par cette source de mangas</string>
+    <string name="frequency_once_per_month">Une fois par mois</string>
+    <string name="manual">Manuel</string>
+    <string name="reader_optimize_summary">Réduire la qualité des pages hors écran pour utiliser moins de mémoire</string>
+    <string name="source_enabled">Source activée</string>
+    <string name="enhanced_colors">mode couleur 32-bit</string>
+    <string name="disable_nsfw_summary">Désactiver les sources pornographiques et masquer les mangas pour adultes de la liste si possible</string>
+    <string name="speed_value">x%.1f</string>
+    <string name="keep_screen_on_summary">Ne pas désactiver l\'écran pendant que vous lisez des mangas</string>
+    <string name="no_manga_sources_catalog_text">Il n\'y a pas de sources disponibles dans cette section, ou tout cela aurait pu être ajouté.
+\nRestez à l\'écoute</string>
+    <string name="available_d">Disponible : %1$d</string>
+    <string name="state">État</string>
+    <string name="last_successful_backup">Dernière sauvegarde réussie : %s</string>
+    <string name="state_paused">En pause</string>
+    <string name="backups_output_directory">Sauvegardes répertoire de sortie</string>
+    <string name="suggest_new_sources_summary">Prompt pour permettre des sources nouvellement ajoutées après la mise à jour de l\'application</string>
+    <string name="content_type_other">Autre</string>
 </resources>

app/src/main/res/values-ru/strings.xml

@@ -516,7 +516,16 @@
     <string name="manual">Вручную</string>
     <string name="source_enabled">Источник включен</string>
     <string name="disable_nsfw_summary">Отключить NSFW источники и скрывать мангу для взрослых в списках, если это возможно</string>
-    <string name="no_manga_sources_catalog_text">Пока что в данном разделе нет доступных источников. Следите за обновлениями</string>
+    <string name="no_manga_sources_catalog_text">В этом разделе нет доступных источников, или все они могли быть уже добавлены.
+\nСледите за обновлениями</string>
     <string name="available_d">Доступно: %1$d</string>
     <string name="content_type_other">Другое</string>
+    <string name="source_summary_pattern">%1$s, %2$s</string>
+    <string name="state_paused">Приостановлено</string>
+    <string name="error_multiple_states_not_supported">Фильтрация по нескольким состояниям не поддерживается этим источником манги</string>
+    <string name="reader_optimize">Уменьшение потребления памяти (бета)</string>
+    <string name="error_multiple_genres_not_supported">Фильтрация по нескольким жанрам не поддерживается этим источником манги</string>
+    <string name="error_search_not_supported">Поиск не поддерживается этим источником манги</string>
+    <string name="reader_optimize_summary">Уменьшить качество закадровых страниц, чтобы использовать меньше памяти</string>
+    <string name="state">Состояние</string>
 </resources>

app/src/main/res/values-tr/strings.xml

@@ -30,7 +30,7 @@
     <string name="download_complete">İndirildi</string>
     <string name="downloads">İndirilenler</string>
     <string name="by_name">Ad</string>
-    <string name="updated">Güncellenme</string>
+    <string name="updated">Güncellendi</string>
     <string name="newest">Yeniler</string>
     <string name="by_rating">Puanlama</string>
     <string name="filter">Litre</string>
@@ -112,7 +112,7 @@
     <string name="restore_backup">Yedekten geri yükle</string>
     <string name="update">Güncelle</string>
     <string name="sign_in">Oturum aç</string>
-    <string name="state_finished">Bitti</string>
+    <string name="state_finished">Tamamlandı</string>
     <string name="about">Hakkında</string>
     <string name="auth_required">Bu içeriği görüntülemek için oturum açın</string>
     <string name="confirm">Onayla</string>
@@ -505,4 +505,27 @@
     <string name="backups_output_directory">Yedekleme dizini</string>
     <string name="speed_value">x%.1f</string>
     <string name="last_successful_backup">Son başarılı yedekleme: %s</string>
+    <string name="sources_catalog">Kaynak kataloğu</string>
+    <string name="content_type_manga">Manga</string>
+    <string name="content_type_hentai">Hentai</string>
+    <string name="catalog">Katalog</string>
+    <string name="reader_optimize">Bellek kullanımını düşür (beta)</string>
+    <string name="manage_sources">Kaynakları yönet</string>
+    <string name="reader_optimize_summary">Daha az bellek kullanımı için ekran dışı sayfaların çözünürlüğünü düşür</string>
+    <string name="source_enabled">Kaynak etkinleştirildi</string>
+    <string name="no_manga_sources_catalog_text">Bu bölüm için kullanılabilir kaynak yok ya da hepsi zaten eklenmiş olabilir.
+\nTakipte kalın</string>
+    <string name="state_paused">Durduruldu</string>
+    <string name="content_type_other">Diğer</string>
+    <string name="error_multiple_states_not_supported">Birden fazla duruma göre filtreleme bu manga kaynağı tarafından desteklenmemektedir</string>
+    <string name="source_summary_pattern">%1$s,%2$s</string>
+    <string name="content_type_comics">Karikatür</string>
+    <string name="no_manga_sources_found">Sorgunuza göre mevcut manga kaynağı bulunamadı</string>
+    <string name="error_multiple_genres_not_supported">Birden fazla türe göre filtreleme bu manga kaynağı tarafından desteklenmemektedir</string>
+    <string name="lock_screen_rotation">Ekran döndürmeyi kilitle</string>
+    <string name="error_search_not_supported">Arama bu manga kaynağı tarafından desteklenmemektedir</string>
+    <string name="manual">Manuel</string>
+    <string name="disable_nsfw_summary">Eğer mümkünse yetişkin içerik ve NSFW kaynaklarını arama listesinden kaldır</string>
+    <string name="available_d">Mevcut:%1$d</string>
+    <string name="state">Durum</string>
 </resources>

app/src/main/res/values-uk/strings.xml

@@ -506,4 +506,26 @@
     <string name="backups_output_directory">Вихідний каталог резервних копій</string>
     <string name="speed_value">x%.1f</string>
     <string name="lock_screen_rotation">Блокування повороту екрану</string>
+    <string name="sources_catalog">Каталог джерел</string>
+    <string name="content_type_manga">Манґа</string>
+    <string name="source_summary_pattern">%1$s, %2$s</string>
+    <string name="content_type_hentai">Хентай</string>
+    <string name="content_type_comics">Комікси</string>
+    <string name="catalog">Каталог</string>
+    <string name="manage_sources">Кіравання джерелами</string>
+    <string name="no_manga_sources_found">За вашим запитом не знайдено доступних джерел манґи</string>
+    <string name="manual">Вручну</string>
+    <string name="source_enabled">Джерело включено</string>
+    <string name="disable_nsfw_summary">Вимкніть джерела NSFW і приховайте манґу для дорослих зі списку, якщо можливо</string>
+    <string name="no_manga_sources_catalog_text">У цьому розділі немає доступних джерел, або всі вони могли бути додані.
+\nСлідкуйте за оновленнями</string>
+    <string name="available_d">Доступно: %1$d</string>
+    <string name="content_type_other">Інший</string>
+    <string name="state_paused">Призупинено</string>
+    <string name="error_multiple_states_not_supported">Фільтрування за кількома станами не підтримується цим джерелом манґи</string>
+    <string name="reader_optimize">Зменшення споживання пам\'яті (бета)</string>
+    <string name="error_multiple_genres_not_supported">Фільтрація за кількома жанрами не підтримується цим джерелом манґи</string>
+    <string name="error_search_not_supported">Пошук не підтримується цим джерелом манґи</string>
+    <string name="reader_optimize_summary">Зменшити якість закадрових сторінок, щоб використовувати менше пам\'яті</string>
+    <string name="state">Стан</string>
 </resources>

app/src/main/res/values/strings.xml

@@ -519,11 +519,18 @@
 	<string name="source_summary_pattern">%1$s, %2$s</string>
 	<string name="sources_catalog">Sources catalog</string>
 	<string name="source_enabled">Source enabled</string>
-	<string name="no_manga_sources_catalog_text">No available sources in this section yet. Stay tuned</string>
+	<string name="no_manga_sources_catalog_text">There are no sources available in this section, or all of it might have been already added.\nStay tuned</string>
 	<string name="no_manga_sources_found">No available manga sources found by your query</string>
 	<string name="catalog">Catalog</string>
 	<string name="manage_sources">Manage sources</string>
 	<string name="manual">Manual</string>
 	<string name="available_d">Available: %1$d</string>
 	<string name="disable_nsfw_summary">Disable NSFW sources and hide adult manga from list if possible</string>
+	<string name="state_paused">Paused</string>
+	<string name="reader_optimize">Reduce memory consumption (beta)</string>
+	<string name="reader_optimize_summary">Reduce offscreen pages quality to use less memory</string>
+	<string name="state">State</string>
+	<string name="error_multiple_genres_not_supported">Filtering by multiple genres is not supported by this manga source</string>
+	<string name="error_multiple_states_not_supported">Filtering by multiple states is not supported by this manga source</string>
+	<string name="error_search_not_supported">Search is not supported by this manga source</string>
 </resources>

app/src/main/res/xml/pref_reader.xml

@@ -60,6 +60,12 @@
 		android:summary="@string/enhanced_colors_summary"
 		android:title="@string/enhanced_colors" />
 
+	<SwitchPreferenceCompat
+		android:defaultValue="false"
+		android:key="reader_optimize"
+		android:summary="@string/reader_optimize_summary"
+		android:title="@string/reader_optimize" />
+
 	<SwitchPreferenceCompat
 		android:defaultValue="true"
 		android:key="reader_bar"

app/src/release/kotlin/org/koitharu/kotatsu/core/parser/DummyParser.kt

@@ -6,6 +6,7 @@ import org.koitharu.kotatsu.parsers.config.ConfigKey
 import org.koitharu.kotatsu.parsers.exception.NotFoundException
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaChapter
+import org.koitharu.kotatsu.parsers.model.MangaListFilter
 import org.koitharu.kotatsu.parsers.model.MangaPage
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.model.MangaTag
@@ -17,21 +18,16 @@ class DummyParser(context: MangaLoaderContext) : MangaParser(context, MangaSourc
 	override val configKeyDomain: ConfigKey.Domain
 		get() = ConfigKey.Domain("localhost")
 
-	override val sortOrders: Set<SortOrder>
+	override val availableSortOrders: Set<SortOrder>
 		get() = EnumSet.allOf(SortOrder::class.java)
 
 	override suspend fun getDetails(manga: Manga): Manga = stub()
 
-	override suspend fun getList(
-		offset: Int,
-		query: String?,
-		tags: Set<MangaTag>?,
-		sortOrder: SortOrder,
-	): List<Manga> = stub()
+	override suspend fun getList(offset: Int, filter: MangaListFilter?): List<Manga> = stub()
 
 	override suspend fun getPages(chapter: MangaChapter): List<MangaPage> = stub()
 
-	override suspend fun getTags(): Set<MangaTag> = stub()
+	override suspend fun getAvailableTags(): Set<MangaTag> = stub()
 
 	private fun stub(): Nothing {
 		throw NotFoundException("Usage of Dummy parser in release build", "")