Update readme

Currently translated at 99.8% (895 of 896 strings)

Co-authored-by: Milo Ivir <mail@milotype.de>
Translate-URL: https://hosted.weblate.org/projects/kotatsu/strings/hr/
Translation: Kotatsu/Strings

.editorconfig

@@ -4,7 +4,7 @@ root = true
 charset = utf-8
 end_of_line = lf
 indent_size = 4
-indent_style = tab
+indent_style = space
 insert_final_newline = true
 max_line_length = 120
 tab_width = 4

.gitignore

@@ -6,6 +6,7 @@
 /.idea/dictionaries
 /.idea/modules.xml
 /.idea/misc.xml
+/.idea/markdown.xml
 /.idea/discord.xml
 /.idea/compiler.xml
 /.idea/workspace.xml
@@ -26,4 +27,4 @@
 .cxx
 /.idea/deviceManager.xml
 /.kotlin/
-/.idea/AndroidProjectSystem.xml
+/.idea/AndroidProjectSystem.xml

.idea/codeStyles/Project.xml

@@ -1,9 +1,7 @@
 <component name="ProjectCodeStyleConfiguration">
   <code_scheme name="Project" version="173">
     <option name="OTHER_INDENT_OPTIONS">
-      <value>
-        <option name="USE_TAB_CHARACTER" value="true" />
-      </value>
+      <value />
     </option>
     <AndroidXmlCodeStyleSettings>
       <option name="LAYOUT_SETTINGS">
@@ -22,40 +20,46 @@
         </value>
       </option>
     </AndroidXmlCodeStyleSettings>
+    <JavaCodeStyleSettings>
+      <option name="IMPORT_LAYOUT_TABLE">
+        <value>
+          <package name="android" withSubpackages="true" static="true" />
+          <package name="androidx" withSubpackages="true" static="true" />
+          <package name="com" withSubpackages="true" static="true" />
+          <package name="junit" withSubpackages="true" static="true" />
+          <package name="net" withSubpackages="true" static="true" />
+          <package name="org" withSubpackages="true" static="true" />
+          <package name="java" withSubpackages="true" static="true" />
+          <package name="javax" withSubpackages="true" static="true" />
+          <package name="" withSubpackages="true" static="true" />
+          <emptyLine />
+          <package name="android" withSubpackages="true" static="false" />
+          <emptyLine />
+          <package name="androidx" withSubpackages="true" static="false" />
+          <emptyLine />
+          <package name="com" withSubpackages="true" static="false" />
+          <emptyLine />
+          <package name="junit" withSubpackages="true" static="false" />
+          <emptyLine />
+          <package name="net" withSubpackages="true" static="false" />
+          <emptyLine />
+          <package name="org" withSubpackages="true" static="false" />
+          <emptyLine />
+          <package name="java" withSubpackages="true" static="false" />
+          <emptyLine />
+          <package name="javax" withSubpackages="true" static="false" />
+          <emptyLine />
+          <package name="" withSubpackages="true" static="false" />
+          <emptyLine />
+        </value>
+      </option>
+    </JavaCodeStyleSettings>
     <JetCodeStyleSettings>
       <option name="ALLOW_TRAILING_COMMA" value="true" />
+      <option name="ALLOW_TRAILING_COMMA_COLLECTION_LITERAL_EXPRESSION" value="true" />
+      <option name="ALLOW_TRAILING_COMMA_VALUE_ARGUMENT_LIST" value="true" />
       <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
     </JetCodeStyleSettings>
-    <codeStyleSettings language="CMake">
-      <indentOptions>
-        <option name="USE_TAB_CHARACTER" value="true" />
-      </indentOptions>
-    </codeStyleSettings>
-    <codeStyleSettings language="Groovy">
-      <indentOptions>
-        <option name="USE_TAB_CHARACTER" value="true" />
-      </indentOptions>
-    </codeStyleSettings>
-    <codeStyleSettings language="HTML">
-      <indentOptions>
-        <option name="USE_TAB_CHARACTER" value="true" />
-      </indentOptions>
-    </codeStyleSettings>
-    <codeStyleSettings language="JAVA">
-      <indentOptions>
-        <option name="USE_TAB_CHARACTER" value="true" />
-      </indentOptions>
-    </codeStyleSettings>
-    <codeStyleSettings language="JSON">
-      <indentOptions>
-        <option name="USE_TAB_CHARACTER" value="true" />
-      </indentOptions>
-    </codeStyleSettings>
-    <codeStyleSettings language="ObjectiveC">
-      <indentOptions>
-        <option name="USE_TAB_CHARACTER" value="true" />
-      </indentOptions>
-    </codeStyleSettings>
     <codeStyleSettings language="Shell Script">
       <indentOptions>
         <option name="USE_TAB_CHARACTER" value="true" />
@@ -64,7 +68,6 @@
     <codeStyleSettings language="XML">
       <indentOptions>
         <option name="CONTINUATION_INDENT_SIZE" value="4" />
-        <option name="USE_TAB_CHARACTER" value="true" />
       </indentOptions>
       <arrangement>
         <rules>
@@ -179,9 +182,6 @@
       <option name="LINE_COMMENT_AT_FIRST_COLUMN" value="false" />
       <option name="BLOCK_COMMENT_AT_FIRST_COLUMN" value="false" />
       <option name="LINE_COMMENT_ADD_SPACE" value="true" />
-      <indentOptions>
-        <option name="USE_TAB_CHARACTER" value="true" />
-      </indentOptions>
     </codeStyleSettings>
   </code_scheme>
 </component>

README.md

@@ -1,24 +1,16 @@
+> [!IMPORTANT]
+> In light of recent challenges — including threating actions from Kakao Entertainment Corp and upcoming Google’s
+> [new sideloading policy](https://f-droid.org/ru/2025/10/28/sideloading.html) — we’ve made the difficult decision to shut down Kotatsu and end its support. We’re deeply grateful
+> to everyone who contributed and to the amazing community that grew around this project.
+
+---
+
 <div align="center">
 
-<a href="https://kotatsu.app">
-    <img src="./.github/assets/vtuber.png" alt="Kotatsu Logo" title="Kotatsu" width="600"/>
-</a>
+**[Kotatsu](https://github.com/KotatsuApp/Kotatsu) is a free and open-source manga reader for Android with built-in
+online content sources.**
 
-# [Kotatsu](https://kotatsu.app)
-
-**[Kotatsu](https://github.com/KotatsuApp/Kotatsu) is a free and open-source manga reader for Android with built-in online content sources.**
-
-![Downloads count](https://img.shields.io/github/downloads/KotatsuApp/Kotatsu/total?color=1976d2) ![Latest Stable version](https://img.shields.io/github/v/release/KotatsuApp/Kotatsu?color=2596be&label=latest) ![Android 6.0](https://img.shields.io/badge/android-6.0+-brightgreen) [![Sources count](https://img.shields.io/badge/dynamic/yaml?url=https%3A%2F%2Fraw.githubusercontent.com%2FKotatsuApp%2Fkotatsu-parsers%2Frefs%2Fheads%2Fmaster%2F.github%2Fsummary.yaml&query=total&label=manga%20sources&color=%23E9321C)](https://github.com/KotatsuApp/kotatsu-parsers) [![weblate](https://hosted.weblate.org/widgets/kotatsu/-/strings/svg-badge.svg)](https://hosted.weblate.org/engage/kotatsu/) [![Discord](https://img.shields.io/discord/898363402467045416?color=5865f2&label=discord)](https://discord.gg/NNJ5RgVBC5) [![Telegram](https://img.shields.io/badge/chat-telegram-60ACFF?)](https://t.me/kotatsuapp) [![License](https://img.shields.io/github/license/KotatsuApp/Kotatsu)](https://github.com/KotatsuApp/Kotatsu/blob/devel/LICENSE)
-
-### Download
-
-<div align="left">
-
-* **Recommended:** Download and install APK from [GitHub Releases](https://github.com/KotatsuApp/Kotatsu/releases/latest). Application has a built-in self-updating feature.
-* Get it on [F-Droid](https://f-droid.org/packages/org.koitharu.kotatsu). The F-Droid build may be a bit outdated and some fixes might be missing.
-* Also [nightly builds](https://github.com/KotatsuApp/Kotatsu-nightly/releases) are available (Unstable, use at your own risk). Application has a built-in self-updating feature.
-
-</div>
+![Android 6.0](https://img.shields.io/badge/android-6.0+-brightgreen) [![Sources count](https://img.shields.io/badge/dynamic/yaml?url=https%3A%2F%2Fraw.githubusercontent.com%2FKotatsuApp%2Fkotatsu-parsers%2Frefs%2Fheads%2Fmaster%2F.github%2Fsummary.yaml&query=total&label=manga%20sources&color=%23E9321C)](https://github.com/KotatsuApp/kotatsu-parsers) [![weblate](https://hosted.weblate.org/widgets/kotatsu/-/strings/svg-badge.svg)](https://hosted.weblate.org/engage/kotatsu/) [![Discord](https://img.shields.io/discord/898363402467045416?color=5865f2&label=discord)](https://discord.gg/NNJ5RgVBC5) [![Telegram](https://img.shields.io/badge/chat-telegram-60ACFF?)](https://t.me/kotatsuapp) [![License](https://img.shields.io/github/license/KotatsuApp/Kotatsu)](https://github.com/KotatsuApp/Kotatsu/blob/devel/LICENSE)
 
 ### Main Features
 
@@ -35,7 +27,7 @@
 * Integration with manga tracking services: Shikimori, AniList, MyAnimeList, Kitsu
 * Password / fingerprint-protected access to the app
 * Automatically sync app data with other devices on the same account
-* Support for older devices running Android 5.0+
+* Support for older devices running Android 6.0+
 
 </div>
 
@@ -86,7 +78,8 @@ please head over to the [Weblate project page](https://hosted.weblate.org/engage
 
 </br>
 
-**📌 Pull requests are welcome, if you want: See [CONTRIBUTING.md](https://github.com/KotatsuApp/Kotatsu/blob/devel/CONTRIBUTING.md) for the guidelines**
+**📌 Pull requests are welcome, if you want:
+See [CONTRIBUTING.md](https://github.com/KotatsuApp/Kotatsu/blob/devel/CONTRIBUTING.md) for the guidelines**
 
 ### Certificate fingerprints
 
@@ -104,7 +97,9 @@ please head over to the [Weblate project page](https://hosted.weblate.org/engage
 
 <div align="left">
 
-You may copy, distribute and modify the software as long as you track changes/dates in source files. Any modifications to or software including (via compiler) GPL-licensed code must also be made available under the GPL along with build & install instructions.
+You may copy, distribute and modify the software as long as you track changes/dates in source files. Any modifications
+to or software including (via compiler) GPL-licensed code must also be made available under the GPL along with build &
+install instructions.
 
 </div>
 
@@ -112,6 +107,9 @@ You may copy, distribute and modify the software as long as you track changes/da
 
 <div align="left">
 
-The developers of this application do not have any affiliation with the content available in the app. It collects content from sources that are freely available through any web browser.
+The developers of this application do not have any affiliation with the content available in the app and does not store
+or distribute any content. This application should be considered a web browser, all content that can be found using this
+application is freely available on the Internet. All DMCA takedown requests should be sent to the owners of the website
+where the content is hosted.
 
 </div>

app/build.gradle

@@ -21,8 +21,8 @@ android {
 		applicationId 'org.koitharu.kotatsu'
 		minSdk = 23
 		targetSdk = 36
-		versionCode = 1030
-		versionName = '9.2'
+		versionCode = 1033
+		versionName = '9.4.1'
 		generatedDensities = []
 		testInstrumentationRunner 'org.koitharu.kotatsu.HiltTestRunner'
 		ksp {
@@ -155,6 +155,9 @@ dependencies {
 	implementation libs.androidx.work.runtime
 	implementation libs.guava
 
+    // Foldable/Window layout
+    implementation libs.androidx.window
+
 	implementation libs.androidx.room.runtime
 	implementation libs.androidx.room.ktx
 	ksp libs.androidx.room.compiler

app/src/main/kotlin/org/koitharu/kotatsu/backups/data/BackupRepository.kt

@@ -26,12 +26,17 @@ import org.koitharu.kotatsu.backups.data.model.CategoryBackup
 import org.koitharu.kotatsu.backups.data.model.FavouriteBackup
 import org.koitharu.kotatsu.backups.data.model.HistoryBackup
 import org.koitharu.kotatsu.backups.data.model.MangaBackup
+import org.koitharu.kotatsu.backups.data.model.ScrobblingBackup
 import org.koitharu.kotatsu.backups.data.model.SourceBackup
+import org.koitharu.kotatsu.backups.data.model.StatisticBackup
 import org.koitharu.kotatsu.backups.domain.BackupSection
 import org.koitharu.kotatsu.core.db.MangaDatabase
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.util.CompositeResult
 import org.koitharu.kotatsu.core.util.progress.Progress
+import org.koitharu.kotatsu.explore.data.MangaSourcesRepository
+import org.koitharu.kotatsu.filter.data.PersistableFilter
+import org.koitharu.kotatsu.filter.data.SavedFiltersRepository
 import org.koitharu.kotatsu.parsers.util.runCatchingCancellable
 import org.koitharu.kotatsu.reader.data.TapGridSettings
 import java.io.InputStream
@@ -43,220 +48,267 @@ import javax.inject.Inject
 
 @Reusable
 class BackupRepository @Inject constructor(
-	private val database: MangaDatabase,
-	private val settings: AppSettings,
-	private val tapGridSettings: TapGridSettings,
+    private val database: MangaDatabase,
+    private val settings: AppSettings,
+    private val tapGridSettings: TapGridSettings,
+    private val mangaSourcesRepository: MangaSourcesRepository,
+    private val savedFiltersRepository: SavedFiltersRepository,
 ) {
 
-	private val json = Json {
-		allowSpecialFloatingPointValues = true
-		coerceInputValues = true
-		encodeDefaults = true
-		ignoreUnknownKeys = true
-		useAlternativeNames = false
-	}
+    private val json = Json {
+        allowSpecialFloatingPointValues = true
+        coerceInputValues = true
+        encodeDefaults = true
+        ignoreUnknownKeys = true
+        useAlternativeNames = false
+    }
 
-	suspend fun createBackup(
-		output: ZipOutputStream,
-		progress: FlowCollector<Progress>?,
-	) {
-		progress?.emit(Progress.INDETERMINATE)
-		var commonProgress = Progress(0, BackupSection.entries.size)
-		for (section in BackupSection.entries) {
-			when (section) {
-				BackupSection.INDEX -> output.writeJsonArray(
-					section = BackupSection.INDEX,
-					data = flowOf(BackupIndex()),
-					serializer = serializer(),
-				)
+    suspend fun createBackup(
+        output: ZipOutputStream,
+        progress: FlowCollector<Progress>?,
+    ) {
+        progress?.emit(Progress.INDETERMINATE)
+        var commonProgress = Progress(0, BackupSection.entries.size)
+        for (section in BackupSection.entries) {
+            when (section) {
+                BackupSection.INDEX -> output.writeJsonArray(
+                    section = BackupSection.INDEX,
+                    data = flowOf(BackupIndex()),
+                    serializer = serializer(),
+                )
 
-				BackupSection.HISTORY -> output.writeJsonArray(
-					section = BackupSection.HISTORY,
-					data = database.getHistoryDao().dump().map { HistoryBackup(it) },
-					serializer = serializer(),
-				)
+                BackupSection.HISTORY -> output.writeJsonArray(
+                    section = BackupSection.HISTORY,
+                    data = database.getHistoryDao().dump().map { HistoryBackup(it) },
+                    serializer = serializer(),
+                )
 
-				BackupSection.CATEGORIES -> output.writeJsonArray(
-					section = BackupSection.CATEGORIES,
-					data = database.getFavouriteCategoriesDao().findAll().asFlow().map { CategoryBackup(it) },
-					serializer = serializer(),
-				)
+                BackupSection.CATEGORIES -> output.writeJsonArray(
+                    section = BackupSection.CATEGORIES,
+                    data = database.getFavouriteCategoriesDao().findAll().asFlow().map { CategoryBackup(it) },
+                    serializer = serializer(),
+                )
 
-				BackupSection.FAVOURITES -> output.writeJsonArray(
-					section = BackupSection.FAVOURITES,
-					data = database.getFavouritesDao().dump().map { FavouriteBackup(it) },
-					serializer = serializer(),
-				)
+                BackupSection.FAVOURITES -> output.writeJsonArray(
+                    section = BackupSection.FAVOURITES,
+                    data = database.getFavouritesDao().dump().map { FavouriteBackup(it) },
+                    serializer = serializer(),
+                )
 
-				BackupSection.SETTINGS -> output.writeString(
-					section = BackupSection.SETTINGS,
-					data = dumpSettings(),
-				)
+                BackupSection.SETTINGS -> output.writeString(
+                    section = BackupSection.SETTINGS,
+                    data = dumpSettings(),
+                )
 
-				BackupSection.SETTINGS_READER_GRID -> output.writeString(
-					section = BackupSection.SETTINGS_READER_GRID,
-					data = dumpReaderGridSettings(),
-				)
+                BackupSection.SETTINGS_READER_GRID -> output.writeString(
+                    section = BackupSection.SETTINGS_READER_GRID,
+                    data = dumpReaderGridSettings(),
+                )
 
-				BackupSection.BOOKMARKS -> output.writeJsonArray(
-					section = BackupSection.BOOKMARKS,
-					data = database.getBookmarksDao().dump().map { BookmarkBackup(it.first, it.second) },
-					serializer = serializer(),
-				)
+                BackupSection.BOOKMARKS -> output.writeJsonArray(
+                    section = BackupSection.BOOKMARKS,
+                    data = database.getBookmarksDao().dump().map { BookmarkBackup(it.first, it.second) },
+                    serializer = serializer(),
+                )
 
-				BackupSection.SOURCES -> output.writeJsonArray(
-					section = BackupSection.SOURCES,
-					data = database.getSourcesDao().dumpEnabled().map { SourceBackup(it) },
-					serializer = serializer(),
-				)
-			}
-			progress?.emit(commonProgress)
-			commonProgress++
-		}
-		progress?.emit(commonProgress)
-	}
+                BackupSection.SOURCES -> output.writeJsonArray(
+                    section = BackupSection.SOURCES,
+                    data = database.getSourcesDao().dumpEnabled().map { SourceBackup(it) },
+                    serializer = serializer(),
+                )
 
-	suspend fun restoreBackup(
-		input: ZipInputStream,
-		sections: Set<BackupSection>,
-		progress: FlowCollector<Progress>?,
-	): CompositeResult {
-		progress?.emit(Progress.INDETERMINATE)
-		var commonProgress = Progress(0, sections.size)
-		var entry = input.nextEntry
-		var result = CompositeResult.EMPTY
-		while (entry != null) {
-			val section = BackupSection.of(entry)
-			if (section in sections) {
-				result = result + when (section) {
-					BackupSection.INDEX -> CompositeResult.EMPTY // useless in our case
-					BackupSection.HISTORY -> input.readJsonArray<HistoryBackup>(serializer()).restoreToDb {
-						upsertManga(it.manga)
-						getHistoryDao().upsert(it.toEntity())
-					}
+                BackupSection.SCROBBLING -> output.writeJsonArray(
+                    section = BackupSection.SCROBBLING,
+                    data = database.getScrobblingDao().dumpEnabled().map { ScrobblingBackup(it) },
+                    serializer = serializer(),
+                )
 
-					BackupSection.CATEGORIES -> input.readJsonArray<CategoryBackup>(serializer()).restoreToDb {
-						getFavouriteCategoriesDao().upsert(it.toEntity())
-					}
+                BackupSection.STATS -> output.writeJsonArray(
+                    section = BackupSection.STATS,
+                    data = database.getStatsDao().dumpEnabled().map { StatisticBackup(it) },
+                    serializer = serializer(),
+                )
 
-					BackupSection.FAVOURITES -> input.readJsonArray<FavouriteBackup>(serializer()).restoreToDb {
-						upsertManga(it.manga)
-						getFavouritesDao().upsert(it.toEntity())
-					}
+                BackupSection.SAVED_FILTERS -> {
+                    val sources = mangaSourcesRepository.getEnabledSources()
+                    val filters = sources.flatMap { source ->
+                        savedFiltersRepository.getAll(source)
+                    }
+                    output.writeJsonArray(
+                        section = BackupSection.SAVED_FILTERS,
+                        data = filters.asFlow(),
+                        serializer = serializer(),
+                    )
+                }
+            }
+            progress?.emit(commonProgress)
+            commonProgress++
+        }
+        progress?.emit(commonProgress)
+    }
 
-					BackupSection.SETTINGS -> input.readMap().let {
-						settings.upsertAll(it)
-						CompositeResult.success()
-					}
+    suspend fun restoreBackup(
+        input: ZipInputStream,
+        sections: Set<BackupSection>,
+        progress: FlowCollector<Progress>?,
+    ): CompositeResult {
+        progress?.emit(Progress.INDETERMINATE)
+        var commonProgress = Progress(0, sections.size)
+        var entry = input.nextEntry
+        var result = CompositeResult.EMPTY
+        while (entry != null) {
+            val section = BackupSection.of(entry)
+            if (section in sections) {
+                result += when (section) {
+                    BackupSection.INDEX -> CompositeResult.EMPTY // useless in our case
+                    BackupSection.HISTORY -> input.readJsonArray<HistoryBackup>(serializer()).restoreToDb {
+                        upsertManga(it.manga)
+                        getHistoryDao().upsert(it.toEntity())
+                    }
 
-					BackupSection.SETTINGS_READER_GRID -> input.readMap().let {
-						tapGridSettings.upsertAll(it)
-						CompositeResult.success()
-					}
+                    BackupSection.CATEGORIES -> input.readJsonArray<CategoryBackup>(serializer()).restoreToDb {
+                        getFavouriteCategoriesDao().upsert(it.toEntity())
+                    }
 
-					BackupSection.BOOKMARKS -> input.readJsonArray<BookmarkBackup>(serializer()).restoreToDb {
-						upsertManga(it.manga)
-						getBookmarksDao().upsert(it.bookmarks.map { b -> b.toEntity() })
-					}
+                    BackupSection.FAVOURITES -> input.readJsonArray<FavouriteBackup>(serializer()).restoreToDb {
+                        upsertManga(it.manga)
+                        getFavouritesDao().upsert(it.toEntity())
+                    }
 
-					BackupSection.SOURCES -> input.readJsonArray<SourceBackup>(serializer()).restoreToDb {
-						getSourcesDao().upsert(it.toEntity())
-					}
+                    BackupSection.SETTINGS -> input.readMap().let {
+                        settings.upsertAll(it)
+                        CompositeResult.success()
+                    }
 
-					null -> CompositeResult.EMPTY // skip unknown entries
-				}
-				progress?.emit(commonProgress)
-				commonProgress++
-			}
-			input.closeEntry()
-			entry = input.nextEntry
-		}
-		progress?.emit(commonProgress)
-		return result
-	}
+                    BackupSection.SETTINGS_READER_GRID -> input.readMap().let {
+                        tapGridSettings.upsertAll(it)
+                        CompositeResult.success()
+                    }
 
-	private suspend fun <T> ZipOutputStream.writeJsonArray(
-		section: BackupSection,
-		data: Flow<T>,
-		serializer: SerializationStrategy<T>,
-	) {
-		data.onStart {
-			putNextEntry(ZipEntry(section.entryName))
-			write("[")
-		}.onCompletion { error ->
-			if (error == null) {
-				write("]")
-			}
-			closeEntry()
-			flush()
-		}.collectIndexed { index, value ->
-			if (index > 0) {
-				write(",")
-			}
-			json.encodeToStream(serializer, value, this)
-		}
-	}
+                    BackupSection.BOOKMARKS -> input.readJsonArray<BookmarkBackup>(serializer()).restoreToDb {
+                        upsertManga(it.manga)
+                        getBookmarksDao().upsert(it.bookmarks.map { b -> b.toEntity() })
+                    }
 
-	private fun <T> InputStream.readJsonArray(
-		serializer: DeserializationStrategy<T>,
-	): Sequence<T> = json.decodeToSequence(this, serializer, DecodeSequenceMode.ARRAY_WRAPPED)
+                    BackupSection.SOURCES -> input.readJsonArray<SourceBackup>(serializer()).restoreToDb {
+                        getSourcesDao().upsert(it.toEntity())
+                    }
 
-	private fun InputStream.readMap(): Map<String, Any?> {
-		val jo = JSONArray(readString()).getJSONObject(0)
-		val map = ArrayMap<String, Any?>(jo.length())
-		val keys = jo.keys()
-		while (keys.hasNext()) {
-			val key = keys.next()
-			map[key] = jo.get(key)
-		}
-		return map
-	}
+                    BackupSection.SCROBBLING -> input.readJsonArray<ScrobblingBackup>(serializer()).restoreToDb {
+                        getScrobblingDao().upsert(it.toEntity())
+                    }
 
-	private fun ZipOutputStream.writeString(
-		section: BackupSection,
-		data: String,
-	) {
-		putNextEntry(ZipEntry(section.entryName))
-		try {
-			write("[")
-			write(data)
-			write("]")
-		} finally {
-			closeEntry()
-			flush()
-		}
-	}
+                    BackupSection.STATS -> input.readJsonArray<StatisticBackup>(serializer()).restoreToDb {
+                        getStatsDao().upsert(it.toEntity())
+                    }
 
-	private fun OutputStream.write(str: String) = write(str.toByteArray())
+                    BackupSection.SAVED_FILTERS -> input.readJsonArray<PersistableFilter>(serializer())
+                        .restoreWithoutTransaction {
+                            savedFiltersRepository.save(it)
+                        }
 
-	private fun InputStream.readString(): String = readBytes().decodeToString()
+                    null -> CompositeResult.EMPTY // skip unknown entries
+                }
+                progress?.emit(commonProgress)
+                commonProgress++
+            }
+            input.closeEntry()
+            entry = input.nextEntry
+        }
+        progress?.emit(commonProgress)
+        return result
+    }
 
-	private fun dumpSettings(): String {
-		val map = settings.getAllValues().toMutableMap()
-		map.remove(AppSettings.KEY_APP_PASSWORD)
-		map.remove(AppSettings.KEY_PROXY_PASSWORD)
-		map.remove(AppSettings.KEY_PROXY_LOGIN)
-		map.remove(AppSettings.KEY_INCOGNITO_MODE)
-		return JSONObject(map).toString()
-	}
+    private suspend fun <T> ZipOutputStream.writeJsonArray(
+        section: BackupSection,
+        data: Flow<T>,
+        serializer: SerializationStrategy<T>,
+    ) {
+        data.onStart {
+            putNextEntry(ZipEntry(section.entryName))
+            write("[")
+        }.onCompletion { error ->
+            if (error == null) {
+                write("]")
+            }
+            closeEntry()
+            flush()
+        }.collectIndexed { index, value ->
+            if (index > 0) {
+                write(",")
+            }
+            json.encodeToStream(serializer, value, this)
+        }
+    }
 
-	private fun dumpReaderGridSettings(): String {
-		return JSONObject(tapGridSettings.getAllValues()).toString()
-	}
+    private fun <T> InputStream.readJsonArray(
+        serializer: DeserializationStrategy<T>,
+    ): Sequence<T> = json.decodeToSequence(this, serializer, DecodeSequenceMode.ARRAY_WRAPPED)
 
-	private suspend fun MangaDatabase.upsertManga(manga: MangaBackup) {
-		val tags = manga.tags.map { it.toEntity() }
-		getTagsDao().upsert(tags)
-		getMangaDao().upsert(manga.toEntity(), tags)
-	}
+    private fun InputStream.readMap(): Map<String, Any?> {
+        val jo = JSONArray(readString()).getJSONObject(0)
+        val map = ArrayMap<String, Any?>(jo.length())
+        val keys = jo.keys()
+        while (keys.hasNext()) {
+            val key = keys.next()
+            map[key] = jo.get(key)
+        }
+        return map
+    }
 
-	private suspend inline fun <T> Sequence<T>.restoreToDb(crossinline block: suspend MangaDatabase.(T) -> Unit): CompositeResult {
-		return fold(CompositeResult.EMPTY) { result, item ->
-			result + runCatchingCancellable {
-				database.withTransaction {
-					database.block(item)
-				}
-			}
-		}
-	}
+    private fun ZipOutputStream.writeString(
+        section: BackupSection,
+        data: String,
+    ) {
+        putNextEntry(ZipEntry(section.entryName))
+        try {
+            write("[")
+            write(data)
+            write("]")
+        } finally {
+            closeEntry()
+            flush()
+        }
+    }
+
+    private fun OutputStream.write(str: String) = write(str.toByteArray())
+
+    private fun InputStream.readString(): String = readBytes().decodeToString()
+
+    private fun dumpSettings(): String {
+        val map = settings.getAllValues().toMutableMap()
+        map.remove(AppSettings.KEY_APP_PASSWORD)
+        map.remove(AppSettings.KEY_PROXY_PASSWORD)
+        map.remove(AppSettings.KEY_PROXY_LOGIN)
+        map.remove(AppSettings.KEY_INCOGNITO_MODE)
+        return JSONObject(map).toString()
+    }
+
+    private fun dumpReaderGridSettings(): String {
+        return JSONObject(tapGridSettings.getAllValues()).toString()
+    }
+
+    private suspend fun MangaDatabase.upsertManga(manga: MangaBackup) {
+        val tags = manga.tags.map { it.toEntity() }
+        getTagsDao().upsert(tags)
+        getMangaDao().upsert(manga.toEntity(), tags)
+    }
+
+    private suspend inline fun <T> Sequence<T>.restoreToDb(crossinline block: suspend MangaDatabase.(T) -> Unit): CompositeResult {
+        return fold(CompositeResult.EMPTY) { result, item ->
+            result + runCatchingCancellable {
+                database.withTransaction {
+                    database.block(item)
+                }
+            }
+        }
+    }
+
+    private suspend inline fun <T> Sequence<T>.restoreWithoutTransaction(crossinline block: suspend (T) -> Unit): CompositeResult {
+        return fold(CompositeResult.EMPTY) { result, item ->
+            result + runCatchingCancellable {
+                block(item)
+            }
+        }
+    }
 }

app/src/main/kotlin/org/koitharu/kotatsu/backups/data/model/ScrobblingBackup.kt

@@ -0,0 +1,40 @@
+package org.koitharu.kotatsu.backups.data.model
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+import org.koitharu.kotatsu.scrobbling.common.data.ScrobblingEntity
+
+@Serializable
+class ScrobblingBackup(
+	@SerialName("scrobbler") val scrobbler: Int,
+	@SerialName("id") val id: Int,
+	@SerialName("manga_id") val mangaId: Long,
+	@SerialName("target_id") val targetId: Long,
+	@SerialName("status") val status: String?,
+	@SerialName("chapter") val chapter: Int,
+	@SerialName("comment") val comment: String?,
+	@SerialName("rating") val rating: Float,
+) {
+
+	constructor(entity: ScrobblingEntity) : this(
+		scrobbler = entity.scrobbler,
+		id = entity.id,
+		mangaId = entity.mangaId,
+		targetId = entity.targetId,
+		status = entity.status,
+		chapter = entity.chapter,
+		comment = entity.comment,
+		rating = entity.rating,
+	)
+
+	fun toEntity() = ScrobblingEntity(
+		scrobbler = scrobbler,
+		id = id,
+		mangaId = mangaId,
+		targetId = targetId,
+		status = status,
+		chapter = chapter,
+		comment = comment,
+		rating = rating,
+	)
+}

app/src/main/kotlin/org/koitharu/kotatsu/backups/data/model/StatisticBackup.kt

@@ -0,0 +1,28 @@
+package org.koitharu.kotatsu.backups.data.model
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+import org.koitharu.kotatsu.stats.data.StatsEntity
+
+@Serializable
+class StatisticBackup(
+	@SerialName("manga_id") val mangaId: Long,
+	@SerialName("started_at") val startedAt: Long,
+	@SerialName("duration") val duration: Long,
+	@SerialName("pages") val pages: Int,
+) {
+
+	constructor(entity: StatsEntity) : this(
+		mangaId = entity.mangaId,
+		startedAt = entity.startedAt,
+		duration = entity.duration,
+		pages = entity.pages,
+	)
+
+	fun toEntity() = StatsEntity(
+		mangaId = mangaId,
+		startedAt = startedAt,
+		duration = duration,
+		pages = pages,
+	)
+}

app/src/main/kotlin/org/koitharu/kotatsu/backups/domain/AppBackupAgent.kt

@@ -12,6 +12,8 @@ import kotlinx.coroutines.runBlocking
 import org.koitharu.kotatsu.backups.data.BackupRepository
 import org.koitharu.kotatsu.core.db.MangaDatabase
 import org.koitharu.kotatsu.core.prefs.AppSettings
+import org.koitharu.kotatsu.explore.data.MangaSourcesRepository
+import org.koitharu.kotatsu.filter.data.SavedFiltersRepository
 import org.koitharu.kotatsu.reader.data.TapGridSettings
 import java.io.File
 import java.io.FileDescriptor
@@ -39,9 +41,17 @@ class AppBackupAgent : BackupAgent() {
 		val file = createBackupFile(
 			this,
 			BackupRepository(
-				MangaDatabase(context = applicationContext),
-				AppSettings(applicationContext),
-				TapGridSettings(applicationContext),
+				database = MangaDatabase(context = applicationContext),
+				settings = AppSettings(applicationContext),
+				tapGridSettings = TapGridSettings(applicationContext),
+				mangaSourcesRepository = MangaSourcesRepository(
+					context = applicationContext,
+					db = MangaDatabase(context = applicationContext),
+					settings = AppSettings(applicationContext),
+				),
+				savedFiltersRepository = SavedFiltersRepository(
+					context = applicationContext,
+				),
 			),
 		)
 		try {
@@ -67,6 +77,14 @@ class AppBackupAgent : BackupAgent() {
 					database = MangaDatabase(applicationContext),
 					settings = AppSettings(applicationContext),
 					tapGridSettings = TapGridSettings(applicationContext),
+					mangaSourcesRepository = MangaSourcesRepository(
+						context = applicationContext,
+						db = MangaDatabase(context = applicationContext),
+						settings = AppSettings(applicationContext),
+					),
+					savedFiltersRepository = SavedFiltersRepository(
+						context = applicationContext,
+					),
 				),
 			)
 			destination.delete()

app/src/main/kotlin/org/koitharu/kotatsu/backups/domain/BackupSection.kt

@@ -15,6 +15,9 @@ enum class BackupSection(
 	SETTINGS_READER_GRID("reader_grid"),
 	BOOKMARKS("bookmarks"),
 	SOURCES("sources"),
+	SCROBBLING("scrobbling"),
+	STATS("statistics"),
+	SAVED_FILTERS("saved_filters"),
 	;
 
 	companion object {

app/src/main/kotlin/org/koitharu/kotatsu/backups/ui/restore/BackupSectionModel.kt

@@ -23,6 +23,9 @@ data class BackupSectionModel(
 			BackupSection.SETTINGS_READER_GRID -> R.string.reader_actions
 			BackupSection.BOOKMARKS -> R.string.bookmarks
 			BackupSection.SOURCES -> R.string.remote_sources
+			BackupSection.SCROBBLING -> R.string.tracking
+			BackupSection.STATS -> R.string.statistics
+			BackupSection.SAVED_FILTERS -> R.string.saved_filters
 		}
 
 	override fun areItemsTheSame(other: ListModel): Boolean {

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

@@ -34,6 +34,9 @@ abstract class MangaDao {
 	@Query("SELECT author FROM manga WHERE author LIKE :query GROUP BY author ORDER BY COUNT(author) DESC LIMIT :limit")
 	abstract suspend fun findAuthors(query: String, limit: Int): List<String>
 
+    @Query("SELECT author FROM manga WHERE manga.source = :source AND author IS NOT NULL AND author != '' GROUP BY author ORDER BY COUNT(author) DESC LIMIT :limit")
+    abstract suspend fun findAuthorsBySource(source: String, limit: Int): List<String>
+
 	@Transaction
 	@Query("SELECT * FROM manga WHERE (title LIKE :query OR alt_title LIKE :query) AND manga_id IN (SELECT manga_id FROM favourites UNION SELECT manga_id FROM history) LIMIT :limit")
 	abstract suspend fun searchByTitle(query: String, limit: Int): List<MangaWithTags>

app/src/main/kotlin/org/koitharu/kotatsu/core/exceptions/EmptyMangaException.kt

@@ -0,0 +1,10 @@
+package org.koitharu.kotatsu.core.exceptions
+
+import org.koitharu.kotatsu.details.ui.pager.EmptyMangaReason
+import org.koitharu.kotatsu.parsers.model.Manga
+
+class EmptyMangaException(
+    val reason: EmptyMangaReason?,
+    val manga: Manga,
+    cause: Throwable?
+) : IllegalStateException(cause)

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

@@ -8,13 +8,15 @@ import androidx.collection.MutableScatterMap
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.FragmentActivity
 import androidx.fragment.app.FragmentManager
-import dagger.assisted.Assisted
-import dagger.assisted.AssistedFactory
-import dagger.assisted.AssistedInject
+import androidx.lifecycle.Lifecycle
+import androidx.lifecycle.LifecycleOwner
+import androidx.lifecycle.lifecycleScope
+import kotlinx.coroutines.async
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.browser.BrowserActivity
 import org.koitharu.kotatsu.browser.cloudflare.CloudFlareActivity
 import org.koitharu.kotatsu.core.exceptions.CloudFlareProtectedException
+import org.koitharu.kotatsu.core.exceptions.EmptyMangaException
 import org.koitharu.kotatsu.core.exceptions.InteractiveActionRequiredException
 import org.koitharu.kotatsu.core.exceptions.ProxyConfigException
 import org.koitharu.kotatsu.core.exceptions.UnsupportedSourceException
@@ -24,6 +26,7 @@ import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.ui.dialog.buildAlertDialog
 import org.koitharu.kotatsu.core.util.ext.isHttpUrl
 import org.koitharu.kotatsu.core.util.ext.restartApplication
+import org.koitharu.kotatsu.details.ui.pager.EmptyMangaReason
 import org.koitharu.kotatsu.parsers.exception.AuthRequiredException
 import org.koitharu.kotatsu.parsers.exception.NotFoundException
 import org.koitharu.kotatsu.parsers.model.Manga
@@ -32,164 +35,221 @@ import org.koitharu.kotatsu.scrobbling.common.domain.ScrobblerAuthRequiredExcept
 import org.koitharu.kotatsu.scrobbling.common.ui.ScrobblerAuthHelper
 import org.koitharu.kotatsu.settings.sources.auth.SourceAuthActivity
 import java.security.cert.CertPathValidatorException
+import javax.inject.Inject
 import javax.inject.Provider
 import javax.net.ssl.SSLException
 import kotlin.coroutines.Continuation
 import kotlin.coroutines.resume
 import kotlin.coroutines.suspendCoroutine
 
-class ExceptionResolver @AssistedInject constructor(
-	@Assisted private val host: Host,
-	private val settings: AppSettings,
-	private val scrobblerAuthHelperProvider: Provider<ScrobblerAuthHelper>,
+class ExceptionResolver private constructor(
+    private val host: Host,
+    private val settings: AppSettings,
+    private val scrobblerAuthHelperProvider: Provider<ScrobblerAuthHelper>,
 ) {
-	private val continuations = MutableScatterMap<String, Continuation<Boolean>>(1)
+    private val continuations = MutableScatterMap<String, Continuation<Boolean>>(1)
 
-	private val browserActionContract = host.registerForActivityResult(BrowserActivity.Contract()) {
-		handleActivityResult(BrowserActivity.TAG, true)
-	}
-	private val sourceAuthContract = host.registerForActivityResult(SourceAuthActivity.Contract()) {
-		handleActivityResult(SourceAuthActivity.TAG, it)
-	}
-	private val cloudflareContract = host.registerForActivityResult(CloudFlareActivity.Contract()) {
-		handleActivityResult(CloudFlareActivity.TAG, it)
-	}
+    private val browserActionContract = host.registerForActivityResult(BrowserActivity.Contract()) {
+        handleActivityResult(BrowserActivity.TAG, true)
+    }
+    private val sourceAuthContract = host.registerForActivityResult(SourceAuthActivity.Contract()) {
+        handleActivityResult(SourceAuthActivity.TAG, it)
+    }
+    private val cloudflareContract = host.registerForActivityResult(CloudFlareActivity.Contract()) {
+        handleActivityResult(CloudFlareActivity.TAG, it)
+    }
 
-	fun showErrorDetails(e: Throwable, url: String? = null) {
-		host.router()?.showErrorDialog(e, url)
-	}
+    fun showErrorDetails(e: Throwable, url: String? = null) {
+        host.router.showErrorDialog(e, url)
+    }
 
-	suspend fun resolve(e: Throwable): Boolean = when (e) {
-		is CloudFlareProtectedException -> resolveCF(e)
-		is AuthRequiredException -> resolveAuthException(e.source)
-		is SSLException,
-		is CertPathValidatorException -> {
-			showSslErrorDialog()
-			false
-		}
+    suspend fun resolve(e: Throwable): Boolean = host.lifecycleScope.async {
+        when (e) {
+            is CloudFlareProtectedException -> resolveCF(e)
+            is AuthRequiredException -> resolveAuthException(e.source)
+            is SSLException,
+            is CertPathValidatorException -> {
+                showSslErrorDialog()
+                false
+            }
 
-		is InteractiveActionRequiredException -> resolveBrowserAction(e)
+            is InteractiveActionRequiredException -> resolveBrowserAction(e)
 
-		is ProxyConfigException -> {
-			host.router()?.openProxySettings()
-			false
-		}
+            is ProxyConfigException -> {
+                host.router.openProxySettings()
+                false
+            }
 
-		is NotFoundException -> {
-			openInBrowser(e.url)
-			false
-		}
+            is NotFoundException -> {
+                openInBrowser(e.url)
+                false
+            }
 
-		is UnsupportedSourceException -> {
-			e.manga?.let { openAlternatives(it) }
-			false
-		}
+            is EmptyMangaException -> {
+                when (e.reason) {
+                    EmptyMangaReason.NO_CHAPTERS -> openAlternatives(e.manga)
+                    EmptyMangaReason.LOADING_ERROR -> Unit
+                    EmptyMangaReason.RESTRICTED -> host.router.openBrowser(e.manga)
+                    else -> Unit
+                }
+                false
+            }
 
-		is ScrobblerAuthRequiredException -> {
-			val authHelper = scrobblerAuthHelperProvider.get()
-			if (authHelper.isAuthorized(e.scrobbler)) {
-				true
-			} else {
-				host.withContext {
-					authHelper.startAuth(this, e.scrobbler).onFailure(::showErrorDetails)
-				}
-				false
-			}
-		}
+            is UnsupportedSourceException -> {
+                e.manga?.let { openAlternatives(it) }
+                false
+            }
 
-		else -> false
-	}
+            is ScrobblerAuthRequiredException -> {
+                val authHelper = scrobblerAuthHelperProvider.get()
+                if (authHelper.isAuthorized(e.scrobbler)) {
+                    true
+                } else {
+                    host.withContext {
+                        authHelper.startAuth(this, e.scrobbler).onFailure(::showErrorDetails)
+                    }
+                    false
+                }
+            }
 
-	private suspend fun resolveBrowserAction(
-		e: InteractiveActionRequiredException
-	): Boolean = suspendCoroutine { cont ->
-		continuations[BrowserActivity.TAG] = cont
-		browserActionContract.launch(e)
-	}
+            else -> false
+        }
+    }.await()
 
-	private suspend fun resolveCF(e: CloudFlareProtectedException): Boolean = suspendCoroutine { cont ->
-		continuations[CloudFlareActivity.TAG] = cont
-		cloudflareContract.launch(e)
-	}
+    private suspend fun resolveBrowserAction(
+        e: InteractiveActionRequiredException
+    ): Boolean = suspendCoroutine { cont ->
+        continuations[BrowserActivity.TAG] = cont
+        browserActionContract.launch(e)
+    }
 
-	private suspend fun resolveAuthException(source: MangaSource): Boolean = suspendCoroutine { cont ->
-		continuations[SourceAuthActivity.TAG] = cont
-		sourceAuthContract.launch(source)
-	}
+    private suspend fun resolveCF(e: CloudFlareProtectedException): Boolean = suspendCoroutine { cont ->
+        continuations[CloudFlareActivity.TAG] = cont
+        cloudflareContract.launch(e)
+    }
 
-	private fun openInBrowser(url: String) {
-		host.router()?.openBrowser(url, null, null)
-	}
+    private suspend fun resolveAuthException(source: MangaSource): Boolean = suspendCoroutine { cont ->
+        continuations[SourceAuthActivity.TAG] = cont
+        sourceAuthContract.launch(source)
+    }
 
-	private fun openAlternatives(manga: Manga) {
-		host.router()?.openAlternatives(manga)
-	}
+    private fun openInBrowser(url: String) {
+        host.router.openBrowser(url, null, null)
+    }
 
-	private fun handleActivityResult(tag: String, result: Boolean) {
-		continuations.remove(tag)?.resume(result)
-	}
+    private fun openAlternatives(manga: Manga) {
+        host.router.openAlternatives(manga)
+    }
 
-	private fun showSslErrorDialog() {
-		val ctx = host.getContext() ?: return
-		if (settings.isSSLBypassEnabled) {
-			Toast.makeText(ctx, R.string.operation_not_supported, Toast.LENGTH_SHORT).show()
-			return
-		}
-		buildAlertDialog(ctx) {
-			setTitle(R.string.ignore_ssl_errors)
-			setMessage(R.string.ignore_ssl_errors_summary)
-			setPositiveButton(R.string.apply) { _, _ ->
-				settings.isSSLBypassEnabled = true
-				Toast.makeText(ctx, R.string.settings_apply_restart_required, Toast.LENGTH_LONG).show()
-				ctx.restartApplication()
-			}
-			setNegativeButton(android.R.string.cancel, null)
-		}.show()
-	}
+    private fun handleActivityResult(tag: String, result: Boolean) {
+        continuations.remove(tag)?.resume(result)
+    }
 
-	private inline fun Host.withContext(block: Context.() -> Unit) {
-		getContext()?.apply(block)
-	}
+    private fun showSslErrorDialog() {
+        val ctx = host.context ?: return
+        if (settings.isSSLBypassEnabled) {
+            Toast.makeText(ctx, R.string.operation_not_supported, Toast.LENGTH_SHORT).show()
+            return
+        }
+        buildAlertDialog(ctx) {
+            setTitle(R.string.ignore_ssl_errors)
+            setMessage(R.string.ignore_ssl_errors_summary)
+            setPositiveButton(R.string.apply) { _, _ ->
+                settings.isSSLBypassEnabled = true
+                Toast.makeText(ctx, R.string.settings_apply_restart_required, Toast.LENGTH_LONG).show()
+                ctx.restartApplication()
+            }
+            setNegativeButton(android.R.string.cancel, null)
+        }.show()
+    }
 
-	private fun Host.router(): AppRouter? = when (this) {
-		is FragmentActivity -> router
-		is Fragment -> router
-		else -> null
-	}
+    class Factory @Inject constructor(
+        private val settings: AppSettings,
+        private val scrobblerAuthHelperProvider: Provider<ScrobblerAuthHelper>,
+    ) {
 
-	interface Host : ActivityResultCaller {
+        fun create(fragment: Fragment) = ExceptionResolver(
+            host = Host.FragmentHost(fragment),
+            settings = settings,
+            scrobblerAuthHelperProvider = scrobblerAuthHelperProvider,
+        )
 
-		fun getChildFragmentManager(): FragmentManager
+        fun create(activity: FragmentActivity) = ExceptionResolver(
+            host = Host.ActivityHost(activity),
+            settings = settings,
+            scrobblerAuthHelperProvider = scrobblerAuthHelperProvider,
+        )
+    }
 
-		fun getContext(): Context?
-	}
+    private sealed interface Host : ActivityResultCaller, LifecycleOwner {
 
-	@AssistedFactory
-	interface Factory {
+        val context: Context?
 
-		fun create(host: Host): ExceptionResolver
-	}
+        val router: AppRouter
 
-	companion object {
+        val fragmentManager: FragmentManager
 
-		@StringRes
-		fun getResolveStringId(e: Throwable) = when (e) {
-			is CloudFlareProtectedException -> R.string.captcha_solve
-			is ScrobblerAuthRequiredException,
-			is AuthRequiredException -> R.string.sign_in
+        inline fun withContext(block: Context.() -> Unit) {
+            context?.apply(block)
+        }
 
-			is NotFoundException -> if (e.url.isHttpUrl()) R.string.open_in_browser else 0
-			is UnsupportedSourceException -> if (e.manga != null) R.string.alternatives else 0
-			is SSLException,
-			is CertPathValidatorException -> R.string.fix
+        class ActivityHost(val activity: FragmentActivity) : Host,
+            ActivityResultCaller by activity,
+            LifecycleOwner by activity {
 
-			is ProxyConfigException -> R.string.settings
+            override val context: Context
+                get() = activity
 
-			is InteractiveActionRequiredException -> R.string._continue
+            override val router: AppRouter
+                get() = activity.router
 
-			else -> 0
-		}
+            override val fragmentManager: FragmentManager
+                get() = activity.supportFragmentManager
+        }
 
-		fun canResolve(e: Throwable) = getResolveStringId(e) != 0
-	}
+        class FragmentHost(val fragment: Fragment) : Host,
+            ActivityResultCaller by fragment {
+
+            override val context: Context?
+                get() = fragment.context
+
+            override val router: AppRouter
+                get() = fragment.router
+
+            override val fragmentManager: FragmentManager
+                get() = fragment.childFragmentManager
+
+            override val lifecycle: Lifecycle
+                get() = fragment.viewLifecycleOwner.lifecycle
+        }
+    }
+
+    companion object {
+
+        @StringRes
+        fun getResolveStringId(e: Throwable) = when (e) {
+            is CloudFlareProtectedException -> R.string.captcha_solve
+            is ScrobblerAuthRequiredException,
+            is AuthRequiredException -> R.string.sign_in
+
+            is NotFoundException -> if (e.url.isHttpUrl()) R.string.open_in_browser else 0
+            is UnsupportedSourceException -> if (e.manga != null) R.string.alternatives else 0
+            is SSLException,
+            is CertPathValidatorException -> R.string.fix
+
+            is ProxyConfigException -> R.string.settings
+
+            is InteractiveActionRequiredException -> R.string._continue
+
+            is EmptyMangaException -> when (e.reason) {
+                EmptyMangaReason.RESTRICTED -> if (e.manga.publicUrl.isHttpUrl()) R.string.open_in_browser else 0
+                EmptyMangaReason.NO_CHAPTERS -> R.string.alternatives
+                else -> 0
+            }
+
+            else -> 0
+        }
+
+        fun canResolve(e: Throwable) = getResolveStringId(e) != 0
+    }
 }

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

@@ -0,0 +1,20 @@
+package org.koitharu.kotatsu.core.model
+
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.descriptors.SerialDescriptor
+import kotlinx.serialization.descriptors.serialDescriptor
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.encoding.Encoder
+import org.koitharu.kotatsu.parsers.model.MangaSource
+
+object MangaSourceSerializer : KSerializer<MangaSource> {
+
+    override val descriptor: SerialDescriptor = serialDescriptor<String>()
+
+    override fun serialize(
+        encoder: Encoder,
+        value: MangaSource
+    ) = encoder.encodeString(value.name)
+
+    override fun deserialize(decoder: Decoder): MangaSource = MangaSource(decoder.decodeString())
+}

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

@@ -1,6 +1,7 @@
 package org.koitharu.kotatsu.core.network.webview
 
 import android.content.Context
+import android.util.AndroidRuntimeException
 import android.webkit.WebSettings
 import android.webkit.WebView
 import android.webkit.WebViewClient
@@ -41,7 +42,13 @@ class WebViewExecutor @Inject constructor(
 	private val mutex = Mutex()
 
 	val defaultUserAgent: String? by lazy {
-		WebSettings.getDefaultUserAgent(context)
+		try {
+			WebSettings.getDefaultUserAgent(context)
+		} catch (e: AndroidRuntimeException) {
+			e.printStackTraceDebug()
+			// Probably WebView is not available
+			null
+		}
 	}
 
 	suspend fun evaluateJs(baseUrl: String?, script: String): String? = mutex.withLock {

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

@@ -138,6 +138,10 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		get() = prefs.getBoolean(KEY_READER_DOUBLE_PAGES, false)
 		set(value) = prefs.edit { putBoolean(KEY_READER_DOUBLE_PAGES, value) }
 
+	var isReaderDoubleOnFoldable: Boolean
+		get() = prefs.getBoolean(KEY_READER_DOUBLE_FOLDABLE, false)
+		set(value) = prefs.edit { putBoolean(KEY_READER_DOUBLE_FOLDABLE, value) }
+
 	@get:FloatRange(0.0, 1.0)
 	var readerDoublePagesSensitivity: Float
 		get() = prefs.getFloat(KEY_READER_DOUBLE_PAGES_SENSITIVITY, 0.5f)
@@ -409,6 +413,9 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 	val isReaderBarTransparent: Boolean
 		get() = prefs.getBoolean(KEY_READER_BAR_TRANSPARENT, true)
 
+	val isReaderChapterToastEnabled: Boolean
+		get() = prefs.getBoolean(KEY_READER_CHAPTER_TOAST, true)
+
 	val isReaderKeepScreenOn: Boolean
 		get() = prefs.getBoolean(KEY_READER_SCREEN_ON, true)
 
@@ -543,11 +550,11 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 	val isPeriodicalBackupEnabled: Boolean
 		get() = prefs.getBoolean(KEY_BACKUP_PERIODICAL_ENABLED, false)
 
-	val periodicalBackupFrequency: Long
-		get() = prefs.getString(KEY_BACKUP_PERIODICAL_FREQUENCY, null)?.toLongOrNull() ?: 7L
+	val periodicalBackupFrequency: Float
+		get() = prefs.getString(KEY_BACKUP_PERIODICAL_FREQUENCY, null)?.toFloatOrNull() ?: 7f
 
 	val periodicalBackupFrequencyMillis: Long
-		get() = TimeUnit.DAYS.toMillis(periodicalBackupFrequency)
+		get() = (TimeUnit.DAYS.toMillis(1) * periodicalBackupFrequency).toLong()
 
 	val periodicalBackupMaxCount: Int
 		get() = if (prefs.getBoolean(KEY_BACKUP_PERIODICAL_TRIM, true)) {
@@ -678,7 +685,8 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		const val KEY_REMOTE_SOURCES = "remote_sources"
 		const val KEY_LOCAL_STORAGE = "local_storage"
 		const val KEY_READER_DOUBLE_PAGES = "reader_double_pages"
-		const val KEY_READER_DOUBLE_PAGES_SENSITIVITY = "reader_double_pages_sensitivity"
+		const val KEY_READER_DOUBLE_PAGES_SENSITIVITY = "reader_double_pages_sensitivity_2"
+		const val KEY_READER_DOUBLE_FOLDABLE = "reader_double_foldable"
 		const val KEY_READER_ZOOM_BUTTONS = "reader_zoom_buttons"
 		const val KEY_READER_CONTROL_LTR = "reader_taps_ltr"
 		const val KEY_READER_NAVIGATION_INVERTED = "reader_navigation_inverted"
@@ -747,6 +755,7 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		const val KEY_SYNC_SETTINGS = "sync_settings"
 		const val KEY_READER_BAR = "reader_bar"
 		const val KEY_READER_BAR_TRANSPARENT = "reader_bar_transparent"
+		const val KEY_READER_CHAPTER_TOAST = "reader_chapter_toast"
 		const val KEY_READER_BACKGROUND = "reader_background"
 		const val KEY_READER_SCREEN_ON = "reader_screen_on"
 		const val KEY_SHORTCUTS = "dynamic_shortcuts"

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

@@ -13,10 +13,14 @@ import org.koitharu.kotatsu.parsers.model.SortOrder
 import org.koitharu.kotatsu.parsers.util.ifNullOrEmpty
 import org.koitharu.kotatsu.parsers.util.nullIfEmpty
 import org.koitharu.kotatsu.settings.utils.validation.DomainValidator
+import java.io.File
 
 class SourceSettings(context: Context, source: MangaSource) : MangaSourceConfig {
 
-	private val prefs = context.getSharedPreferences(source.name, Context.MODE_PRIVATE)
+    private val prefs = context.getSharedPreferences(
+        source.name.replace(File.separatorChar, '$'),
+        Context.MODE_PRIVATE,
+    )
 
 	var defaultSortOrder: SortOrder?
 		get() = prefs.getEnumValue(KEY_SORT_ORDER, SortOrder::class.java)

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

@@ -33,7 +33,6 @@ import androidx.appcompat.R as appcompatR
 
 abstract class BaseActivity<B : ViewBinding> :
 	AppCompatActivity(),
-	ExceptionResolver.Host,
 	OnApplyWindowInsetsListener,
 	ScreenshotPolicyHelper.ContentContainer {
 
@@ -87,10 +86,6 @@ abstract class BaseActivity<B : ViewBinding> :
 	@Deprecated("Use ViewBinding", level = DeprecationLevel.ERROR)
 	override fun setContentView(view: View?) = throw UnsupportedOperationException()
 
-	override fun getContext() = this
-
-	override fun getChildFragmentManager(): FragmentManager = supportFragmentManager
-
 	protected fun setContentView(binding: B) {
 		this.viewBinding = binding
 		super.setContentView(binding.root)

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

@@ -15,8 +15,7 @@ import org.koitharu.kotatsu.core.ui.util.ActionModeDelegate
 
 abstract class BaseFragment<B : ViewBinding> :
 	OnApplyWindowInsetsListener,
-	Fragment(),
-	ExceptionResolver.Host {
+	Fragment() {
 
 	var viewBinding: B? = null
 		private set

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

@@ -36,8 +36,7 @@ import com.google.android.material.R as materialR
 abstract class BasePreferenceFragment(@StringRes private val titleId: Int) :
 	PreferenceFragmentCompat(),
 	OnApplyWindowInsetsListener,
-	RecyclerViewOwner,
-	ExceptionResolver.Host {
+	RecyclerViewOwner {
 
 	protected lateinit var exceptionResolver: ExceptionResolver
 		private set

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

@@ -2,10 +2,17 @@ package org.koitharu.kotatsu.core.ui.dialog
 
 import android.content.Context
 import android.view.LayoutInflater
+import android.view.ViewGroup.LayoutParams.MATCH_PARENT
+import android.view.ViewGroup.LayoutParams.WRAP_CONTENT
+import android.view.inputmethod.EditorInfo
+import android.widget.ArrayAdapter
 import android.widget.CompoundButton.OnCheckedChangeListener
+import android.widget.EditText
+import android.widget.FrameLayout
 import androidx.annotation.StringRes
 import androidx.annotation.UiContext
 import androidx.appcompat.app.AlertDialog
+import androidx.appcompat.widget.AppCompatEditText
 import androidx.core.view.updatePadding
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
@@ -15,54 +22,103 @@ import com.hannesdorfmann.adapterdelegates4.AdapterDelegatesManager
 import com.hannesdorfmann.adapterdelegates4.ListDelegationAdapter
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.databinding.DialogCheckboxBinding
+import org.koitharu.kotatsu.databinding.ViewDialogAutocompleteBinding
 import com.google.android.material.R as materialR
 
 inline fun buildAlertDialog(
-	@UiContext context: Context,
-	isCentered: Boolean = false,
-	block: MaterialAlertDialogBuilder.() -> Unit,
+    @UiContext context: Context,
+    isCentered: Boolean = false,
+    block: MaterialAlertDialogBuilder.() -> Unit,
 ): AlertDialog = MaterialAlertDialogBuilder(
-	context,
-	if (isCentered) materialR.style.ThemeOverlay_Material3_MaterialAlertDialog_Centered else 0,
+    context,
+    if (isCentered) materialR.style.ThemeOverlay_Material3_MaterialAlertDialog_Centered else 0,
 ).apply(block).create()
 
 fun <B : AlertDialog.Builder> B.setCheckbox(
-	@StringRes textResId: Int,
-	isChecked: Boolean,
-	onCheckedChangeListener: OnCheckedChangeListener
+    @StringRes textResId: Int,
+    isChecked: Boolean,
+    onCheckedChangeListener: OnCheckedChangeListener
 ) = apply {
-	val binding = DialogCheckboxBinding.inflate(LayoutInflater.from(context))
-	binding.checkbox.setText(textResId)
-	binding.checkbox.isChecked = isChecked
-	binding.checkbox.setOnCheckedChangeListener(onCheckedChangeListener)
-	setView(binding.root)
+    val binding = DialogCheckboxBinding.inflate(LayoutInflater.from(context))
+    binding.checkbox.setText(textResId)
+    binding.checkbox.isChecked = isChecked
+    binding.checkbox.setOnCheckedChangeListener(onCheckedChangeListener)
+    setView(binding.root)
 }
 
 fun <B : AlertDialog.Builder, T> B.setRecyclerViewList(
-	list: List<T>,
-	delegate: AdapterDelegate<List<T>>,
+    list: List<T>,
+    delegate: AdapterDelegate<List<T>>,
 ) = apply {
-	val delegatesManager = AdapterDelegatesManager<List<T>>()
-	delegatesManager.addDelegate(delegate)
-	setRecyclerViewList(ListDelegationAdapter(delegatesManager).also { it.items = list })
+    val delegatesManager = AdapterDelegatesManager<List<T>>()
+    delegatesManager.addDelegate(delegate)
+    setRecyclerViewList(ListDelegationAdapter(delegatesManager).also { it.items = list })
 }
 
 fun <B : AlertDialog.Builder, T> B.setRecyclerViewList(
-	list: List<T>,
-	vararg delegates: AdapterDelegate<List<T>>,
+    list: List<T>,
+    vararg delegates: AdapterDelegate<List<T>>,
 ) = apply {
-	val delegatesManager = AdapterDelegatesManager<List<T>>()
-	delegates.forEach { delegatesManager.addDelegate(it) }
-	setRecyclerViewList(ListDelegationAdapter(delegatesManager).also { it.items = list })
+    val delegatesManager = AdapterDelegatesManager<List<T>>()
+    delegates.forEach { delegatesManager.addDelegate(it) }
+    setRecyclerViewList(ListDelegationAdapter(delegatesManager).also { it.items = list })
 }
 
 fun <B : AlertDialog.Builder> B.setRecyclerViewList(adapter: RecyclerView.Adapter<*>) = apply {
-	val recyclerView = RecyclerView(context)
-	recyclerView.layoutManager = LinearLayoutManager(context)
-	recyclerView.updatePadding(
-		top = context.resources.getDimensionPixelOffset(R.dimen.list_spacing),
-	)
-	recyclerView.clipToPadding = false
-	recyclerView.adapter = adapter
-	setView(recyclerView)
+    val recyclerView = RecyclerView(context)
+    recyclerView.layoutManager = LinearLayoutManager(context)
+    recyclerView.updatePadding(
+        top = context.resources.getDimensionPixelOffset(R.dimen.list_spacing),
+    )
+    recyclerView.clipToPadding = false
+    recyclerView.adapter = adapter
+    setView(recyclerView)
+}
+
+fun <B : AlertDialog.Builder> B.setEditText(
+    inputType: Int,
+    singleLine: Boolean,
+): EditText {
+    val editText = AppCompatEditText(context)
+    editText.inputType = inputType
+    if (singleLine) {
+        editText.setSingleLine()
+        editText.imeOptions = EditorInfo.IME_ACTION_DONE
+    }
+    val layout = FrameLayout(context)
+    val lp = FrameLayout.LayoutParams(MATCH_PARENT, WRAP_CONTENT)
+    val horizontalMargin = context.resources.getDimensionPixelOffset(R.dimen.screen_padding)
+    lp.setMargins(
+        horizontalMargin,
+        context.resources.getDimensionPixelOffset(R.dimen.margin_small),
+        horizontalMargin,
+        0,
+    )
+    layout.addView(editText, lp)
+    setView(layout)
+    return editText
+}
+
+fun <B : AlertDialog.Builder> B.setEditText(
+    entries: List<CharSequence>,
+    inputType: Int,
+    singleLine: Boolean,
+): EditText {
+    if (entries.isEmpty()) {
+        return setEditText(inputType, singleLine)
+    }
+    val binding = ViewDialogAutocompleteBinding.inflate(LayoutInflater.from(context))
+    binding.autoCompleteTextView.setAdapter(
+        ArrayAdapter(context, android.R.layout.simple_spinner_dropdown_item, entries),
+    )
+    binding.dropdown.setOnClickListener {
+        binding.autoCompleteTextView.showDropDown()
+    }
+    binding.autoCompleteTextView.inputType = inputType
+    if (singleLine) {
+        binding.autoCompleteTextView.setSingleLine()
+        binding.autoCompleteTextView.imeOptions = EditorInfo.IME_ACTION_DONE
+    }
+    setView(binding.root)
+    return binding.autoCompleteTextView
 }

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

@@ -5,7 +5,10 @@ import android.view.View
 import androidx.annotation.Px
 import androidx.recyclerview.widget.RecyclerView
 
-class SpacingItemDecoration(@Px private val spacing: Int) : RecyclerView.ItemDecoration() {
+class SpacingItemDecoration(
+    @Px private val spacing: Int,
+    private val withBottomPadding: Boolean,
+) : RecyclerView.ItemDecoration() {
 
 	override fun getItemOffsets(
 		outRect: Rect,
@@ -13,6 +16,6 @@ class SpacingItemDecoration(@Px private val spacing: Int) : RecyclerView.ItemDec
 		parent: RecyclerView,
 		state: RecyclerView.State,
 	) {
-		outRect.set(spacing, spacing, spacing, spacing)
+		outRect.set(spacing, spacing, spacing, if (withBottomPadding) spacing else 0)
 	}
 }

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

@@ -32,8 +32,7 @@ import org.koitharu.kotatsu.core.ui.util.ActionModeDelegate
 import com.google.android.material.R as materialR
 
 abstract class BaseAdaptiveSheet<B : ViewBinding> : AppCompatDialogFragment(),
-	OnApplyWindowInsetsListener,
-	ExceptionResolver.Host {
+	OnApplyWindowInsetsListener {
 
 	private var waitingForDismissAllowingStateLoss = false
 	private var isFitToContentsDisabled = false

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

@@ -56,6 +56,11 @@ class ChipsView @JvmOverloads constructor(
 		val data = it.tag
 		onChipCloseClickListener?.onChipCloseClick(chip, data) ?: onChipClickListener?.onChipClick(chip, data)
 	}
+	private val chipOnLongClickListener = OnLongClickListener {
+		val chip = it as Chip
+		val data = it.tag
+		onChipLongClickListener?.onChipLongClick(chip, data) ?: false
+	}
 	private val chipStyle: Int
 	private val iconsVisible: Boolean
 	var onChipClickListener: OnChipClickListener? = null
@@ -66,6 +71,8 @@ class ChipsView @JvmOverloads constructor(
 		}
 	var onChipCloseClickListener: OnChipCloseClickListener? = null
 
+	var onChipLongClickListener: OnChipLongClickListener? = null
+
 	init {
 		val ta = context.obtainStyledAttributes(attrs, R.styleable.ChipsView, defStyleAttr, 0)
 		chipStyle = ta.getResourceId(R.styleable.ChipsView_chipStyle, R.style.Widget_Kotatsu_Chip)
@@ -145,6 +152,7 @@ class ChipsView @JvmOverloads constructor(
 			setOnCloseIconClickListener(chipOnCloseListener)
 			setEnsureMinTouchTargetSize(false)
 			setOnClickListener(chipOnClickListener)
+			setOnLongClickListener(chipOnLongClickListener)
 			isElegantTextHeight = false
 		}
 
@@ -276,4 +284,9 @@ class ChipsView @JvmOverloads constructor(
 
 		fun onChipCloseClick(chip: Chip, data: Any?)
 	}
+
+	fun interface OnChipLongClickListener {
+
+		fun onChipLongClick(chip: Chip, data: Any?): Boolean
+	}
 }

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

@@ -0,0 +1,22 @@
+package org.koitharu.kotatsu.core.ui.widgets
+
+import android.content.Context
+import android.util.AttributeSet
+import android.view.MotionEvent
+import android.widget.FrameLayout
+
+class TouchBlockLayout @JvmOverloads constructor(
+    context: Context,
+    attrs: AttributeSet? = null
+) : FrameLayout(context, attrs) {
+
+    var isTouchEventsAllowed = true
+
+    override fun onInterceptTouchEvent(
+        ev: MotionEvent?
+    ): Boolean = if (isTouchEventsAllowed) {
+        super.onInterceptTouchEvent(ev)
+    } else {
+        true
+    }
+}

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

@@ -22,6 +22,7 @@ import org.koitharu.kotatsu.core.exceptions.CaughtException
 import org.koitharu.kotatsu.core.exceptions.CloudFlareBlockedException
 import org.koitharu.kotatsu.core.exceptions.CloudFlareProtectedException
 import org.koitharu.kotatsu.core.exceptions.EmptyHistoryException
+import org.koitharu.kotatsu.core.exceptions.EmptyMangaException
 import org.koitharu.kotatsu.core.exceptions.IncompatiblePluginException
 import org.koitharu.kotatsu.core.exceptions.InteractiveActionRequiredException
 import org.koitharu.kotatsu.core.exceptions.NoDataReceivedException
@@ -62,216 +63,219 @@ private const val IMAGE_FORMAT_NOT_SUPPORTED = "Image format not supported"
 private val FNFE_MESSAGE_REGEX = Regex("^(/[^\\s:]+)?.+?\\s([A-Z]{2,6})?\\s.+$")
 
 fun Throwable.getDisplayMessage(resources: Resources): String = getDisplayMessageOrNull(resources)
-	?: resources.getString(R.string.error_occurred)
+    ?: resources.getString(R.string.error_occurred)
 
 private fun Throwable.getDisplayMessageOrNull(resources: Resources): String? = when (this) {
-	is CancellationException -> cause?.getDisplayMessageOrNull(resources) ?: message
-	is CaughtException -> cause.getDisplayMessageOrNull(resources)
-	is WrapperIOException -> cause.getDisplayMessageOrNull(resources)
-	is ScrobblerAuthRequiredException -> resources.getString(
-		R.string.scrobbler_auth_required,
-		resources.getString(scrobbler.titleResId),
-	)
+    is CancellationException -> cause?.getDisplayMessageOrNull(resources) ?: message
+    is CaughtException -> cause.getDisplayMessageOrNull(resources)
+    is WrapperIOException -> cause.getDisplayMessageOrNull(resources)
+    is ScrobblerAuthRequiredException -> resources.getString(
+        R.string.scrobbler_auth_required,
+        resources.getString(scrobbler.titleResId),
+    )
 
-	is AuthRequiredException -> resources.getString(R.string.auth_required)
-	is InteractiveActionRequiredException -> resources.getString(R.string.additional_action_required)
-	is CloudFlareProtectedException -> resources.getString(R.string.captcha_required_message)
-	is CloudFlareBlockedException -> resources.getString(R.string.blocked_by_server_message)
-	is ActivityNotFoundException,
-	is UnsupportedOperationException,
-		-> resources.getString(R.string.operation_not_supported)
+    is AuthRequiredException -> resources.getString(R.string.auth_required)
+    is InteractiveActionRequiredException -> resources.getString(R.string.additional_action_required)
+    is CloudFlareProtectedException -> resources.getString(R.string.captcha_required_message)
+    is CloudFlareBlockedException -> resources.getString(R.string.blocked_by_server_message)
+    is ActivityNotFoundException,
+    is UnsupportedOperationException,
+        -> resources.getString(R.string.operation_not_supported)
 
-	is TooManyRequestExceptions -> {
-		val delay = getRetryDelay()
-		val formattedTime = if (delay > 0L && delay < Long.MAX_VALUE) {
-			resources.formatDurationShort(delay)
-		} else {
-			null
-		}
-		if (formattedTime != null) {
-			resources.getString(R.string.too_many_requests_message_retry, formattedTime)
-		} else {
-			resources.getString(R.string.too_many_requests_message)
-		}
-	}
+    is TooManyRequestExceptions -> {
+        val delay = getRetryDelay()
+        val formattedTime = if (delay > 0L && delay < Long.MAX_VALUE) {
+            resources.formatDurationShort(delay)
+        } else {
+            null
+        }
+        if (formattedTime != null) {
+            resources.getString(R.string.too_many_requests_message_retry, formattedTime)
+        } else {
+            resources.getString(R.string.too_many_requests_message)
+        }
+    }
 
-	is ZipException -> resources.getString(R.string.error_corrupted_zip, this.message.orEmpty())
-	is SQLiteFullException -> resources.getString(R.string.error_no_space_left)
-	is UnsupportedFileException -> resources.getString(R.string.text_file_not_supported)
-	is BadBackupFormatException -> resources.getString(R.string.unsupported_backup_message)
-	is FileNotFoundException -> parseMessage(resources) ?: message
-	is AccessDeniedException -> resources.getString(R.string.no_access_to_file)
-	is NonFileUriException -> resources.getString(R.string.error_non_file_uri)
-	is EmptyHistoryException -> resources.getString(R.string.history_is_empty)
-	is ProxyConfigException -> resources.getString(R.string.invalid_proxy_configuration)
-	is SyncApiException,
-	is ContentUnavailableException -> message
+    is ZipException -> resources.getString(R.string.error_corrupted_zip, this.message.orEmpty())
+    is SQLiteFullException -> resources.getString(R.string.error_no_space_left)
+    is UnsupportedFileException -> resources.getString(R.string.text_file_not_supported)
+    is BadBackupFormatException -> resources.getString(R.string.unsupported_backup_message)
+    is FileNotFoundException -> parseMessage(resources) ?: message
+    is AccessDeniedException -> resources.getString(R.string.no_access_to_file)
+    is NonFileUriException -> resources.getString(R.string.error_non_file_uri)
+    is EmptyHistoryException -> resources.getString(R.string.history_is_empty)
+    is EmptyMangaException -> reason?.let { resources.getString(it.msgResId) } ?: cause?.getDisplayMessage(resources)
+    is ProxyConfigException -> resources.getString(R.string.invalid_proxy_configuration)
+    is SyncApiException,
+    is ContentUnavailableException -> message
 
-	is ParseException -> shortMessage
-	is ConnectException,
-	is UnknownHostException,
-	is NoRouteToHostException,
-	is SocketTimeoutException -> resources.getString(R.string.network_error)
+    is ParseException -> shortMessage
+    is ConnectException,
+    is UnknownHostException,
+    is NoRouteToHostException,
+    is SocketTimeoutException -> resources.getString(R.string.network_error)
 
-	is ImageDecodeException -> {
-		val type = format?.substringBefore('/')
-		val formatString = format.ifNullOrEmpty { resources.getString(R.string.unknown).lowercase(Locale.getDefault()) }
-		if (type.isNullOrEmpty() || type == "image") {
-			resources.getString(R.string.error_image_format, formatString)
-		} else {
-			resources.getString(R.string.error_not_image, formatString)
-		}
-	}
+    is ImageDecodeException -> {
+        val type = format?.substringBefore('/')
+        val formatString = format.ifNullOrEmpty { resources.getString(R.string.unknown).lowercase(Locale.getDefault()) }
+        if (type.isNullOrEmpty() || type == "image") {
+            resources.getString(R.string.error_image_format, formatString)
+        } else {
+            resources.getString(R.string.error_not_image, formatString)
+        }
+    }
 
-	is NoDataReceivedException -> resources.getString(R.string.error_no_data_received)
-	is IncompatiblePluginException -> {
-		cause?.getDisplayMessageOrNull(resources)?.let {
-			resources.getString(R.string.plugin_incompatible_with_cause, it)
-		} ?: resources.getString(R.string.plugin_incompatible)
-	}
+    is NoDataReceivedException -> resources.getString(R.string.error_no_data_received)
+    is IncompatiblePluginException -> {
+        cause?.getDisplayMessageOrNull(resources)?.let {
+            resources.getString(R.string.plugin_incompatible_with_cause, it)
+        } ?: resources.getString(R.string.plugin_incompatible)
+    }
 
-	is WrongPasswordException -> resources.getString(R.string.wrong_password)
-	is NotFoundException -> resources.getString(R.string.not_found_404)
-	is UnsupportedSourceException -> resources.getString(R.string.unsupported_source)
+    is WrongPasswordException -> resources.getString(R.string.wrong_password)
+    is NotFoundException -> resources.getString(R.string.not_found_404)
+    is UnsupportedSourceException -> resources.getString(R.string.unsupported_source)
 
-	is HttpException -> getHttpDisplayMessage(response.code, resources)
-	is HttpStatusException -> getHttpDisplayMessage(statusCode, resources)
+    is HttpException -> getHttpDisplayMessage(response.code, resources)
+    is HttpStatusException -> getHttpDisplayMessage(statusCode, resources)
 
-	else -> mapDisplayMessage(message, resources) ?: message
+    else -> mapDisplayMessage(message, resources) ?: message
 }.takeUnless { it.isNullOrBlank() }
 
 @DrawableRes
 fun Throwable.getDisplayIcon(): Int = when (this) {
-	is AuthRequiredException -> R.drawable.ic_auth_key_large
-	is CloudFlareProtectedException -> R.drawable.ic_bot_large
-	is UnknownHostException,
-	is SocketTimeoutException,
-	is ConnectException,
-	is NoRouteToHostException,
-	is ProtocolException -> R.drawable.ic_plug_large
+    is AuthRequiredException -> R.drawable.ic_auth_key_large
+    is CloudFlareProtectedException -> R.drawable.ic_bot_large
+    is UnknownHostException,
+    is SocketTimeoutException,
+    is ConnectException,
+    is NoRouteToHostException,
+    is ProtocolException -> R.drawable.ic_plug_large
 
-	is CloudFlareBlockedException -> R.drawable.ic_denied_large
+    is CloudFlareBlockedException -> R.drawable.ic_denied_large
 
-	is InteractiveActionRequiredException -> R.drawable.ic_interaction_large
-	else -> R.drawable.ic_error_large
+    is InteractiveActionRequiredException -> R.drawable.ic_interaction_large
+    else -> R.drawable.ic_error_large
 }
 
 fun Throwable.getCauseUrl(): String? = when (this) {
-	is ParseException -> url
-	is NotFoundException -> url
-	is TooManyRequestExceptions -> url
-	is CaughtException -> cause.getCauseUrl()
-	is WrapperIOException -> cause.getCauseUrl()
-	is NoDataReceivedException -> url
-	is CloudFlareBlockedException -> url
-	is CloudFlareProtectedException -> url
-	is InteractiveActionRequiredException -> url
-	is HttpStatusException -> url
-	is HttpException -> (response.delegate as? Response)?.request?.url?.toString()
-	else -> null
+    is ParseException -> url
+    is NotFoundException -> url
+    is TooManyRequestExceptions -> url
+    is CaughtException -> cause.getCauseUrl()
+    is WrapperIOException -> cause.getCauseUrl()
+    is NoDataReceivedException -> url
+    is CloudFlareBlockedException -> url
+    is CloudFlareProtectedException -> url
+    is InteractiveActionRequiredException -> url
+    is HttpStatusException -> url
+    is UnsupportedSourceException -> manga?.publicUrl?.takeIf { it.isHttpUrl() }
+    is EmptyMangaException -> manga.publicUrl.takeIf { it.isHttpUrl() }
+    is HttpException -> (response.delegate as? Response)?.request?.url?.toString()
+    else -> null
 }
 
 private fun getHttpDisplayMessage(statusCode: Int, resources: Resources): String? = when (statusCode) {
-	HttpURLConnection.HTTP_NOT_FOUND -> resources.getString(R.string.not_found_404)
-	HttpURLConnection.HTTP_FORBIDDEN -> resources.getString(R.string.access_denied_403)
-	HttpURLConnection.HTTP_GATEWAY_TIMEOUT -> resources.getString(R.string.network_unavailable)
-	in 500..599 -> resources.getString(R.string.server_error, statusCode)
-	else -> null
+    HttpURLConnection.HTTP_NOT_FOUND -> resources.getString(R.string.not_found_404)
+    HttpURLConnection.HTTP_FORBIDDEN -> resources.getString(R.string.access_denied_403)
+    HttpURLConnection.HTTP_GATEWAY_TIMEOUT -> resources.getString(R.string.network_unavailable)
+    in 500..599 -> resources.getString(R.string.server_error, statusCode)
+    else -> null
 }
 
 private fun mapDisplayMessage(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_NOT_SUPPORTED) -> resources.getString(R.string.error_corrupted_file)
-	msg == MSG_CONNECTION_RESET -> resources.getString(R.string.error_connection_reset)
-	msg == FILTER_MULTIPLE_GENRES_NOT_SUPPORTED -> resources.getString(R.string.error_multiple_genres_not_supported)
-	msg == FILTER_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)
-	msg == FILTER_BOTH_LOCALE_GENRES_NOT_SUPPORTED -> resources.getString(R.string.error_filter_locale_genre_not_supported)
-	msg == FILTER_BOTH_STATES_GENRES_NOT_SUPPORTED -> resources.getString(R.string.error_filter_states_genre_not_supported)
-	else -> null
+    msg.isNullOrEmpty() -> null
+    msg.contains(MSG_NO_SPACE_LEFT) -> resources.getString(R.string.error_no_space_left)
+    msg.contains(IMAGE_FORMAT_NOT_SUPPORTED) -> resources.getString(R.string.error_corrupted_file)
+    msg == MSG_CONNECTION_RESET -> resources.getString(R.string.error_connection_reset)
+    msg == FILTER_MULTIPLE_GENRES_NOT_SUPPORTED -> resources.getString(R.string.error_multiple_genres_not_supported)
+    msg == FILTER_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)
+    msg == FILTER_BOTH_LOCALE_GENRES_NOT_SUPPORTED -> resources.getString(R.string.error_filter_locale_genre_not_supported)
+    msg == FILTER_BOTH_STATES_GENRES_NOT_SUPPORTED -> resources.getString(R.string.error_filter_states_genre_not_supported)
+    else -> null
 }
 
 fun Throwable.isReportable(): Boolean {
-	if (this is Error) {
-		return true
-	}
-	if (this is CaughtException) {
-		return cause.isReportable()
-	}
-	if (this is WrapperIOException) {
-		return cause.isReportable()
-	}
-	if (ExceptionResolver.canResolve(this)) {
-		return false
-	}
-	if (this is ParseException
-		|| this.isNetworkError()
-		|| this is CloudFlareBlockedException
-		|| this is CloudFlareProtectedException
-		|| this is BadBackupFormatException
-		|| this is WrongPasswordException
-		|| this is TooManyRequestExceptions
-		|| this is HttpStatusException
-	) {
-		return false
-	}
-	return true
+    if (this is Error) {
+        return true
+    }
+    if (this is CaughtException) {
+        return cause.isReportable()
+    }
+    if (this is WrapperIOException) {
+        return cause.isReportable()
+    }
+    if (ExceptionResolver.canResolve(this)) {
+        return false
+    }
+    if (this is ParseException
+        || this.isNetworkError()
+        || this is CloudFlareBlockedException
+        || this is CloudFlareProtectedException
+        || this is BadBackupFormatException
+        || this is WrongPasswordException
+        || this is TooManyRequestExceptions
+        || this is HttpStatusException
+    ) {
+        return false
+    }
+    return true
 }
 
 fun Throwable.isNetworkError(): Boolean {
-	return this is UnknownHostException
-		|| this is SocketTimeoutException
-		|| this is StreamResetException
-		|| this is SocketException
-		|| this is HttpException && response.code == HttpURLConnection.HTTP_GATEWAY_TIMEOUT
+    return this is UnknownHostException
+        || this is SocketTimeoutException
+        || this is StreamResetException
+        || this is SocketException
+        || this is HttpException && response.code == HttpURLConnection.HTTP_GATEWAY_TIMEOUT
 }
 
 fun Throwable.report(silent: Boolean = false) {
-	val exception = CaughtException(this)
-	if (!silent) {
-		exception.sendWithAcra()
-	} else if (!BuildConfig.DEBUG) {
-		exception.sendSilentlyWithAcra()
-	}
+    val exception = CaughtException(this)
+    if (!silent) {
+        exception.sendWithAcra()
+    } else if (!BuildConfig.DEBUG) {
+        exception.sendSilentlyWithAcra()
+    }
 }
 
 fun Throwable.isWebViewUnavailable(): Boolean {
-	val trace = stackTraceToString()
-	return trace.contains("android.webkit.WebView.<init>")
+    val trace = stackTraceToString()
+    return trace.contains("android.webkit.WebView.<init>")
 }
 
 @Suppress("FunctionName")
 fun NoSpaceLeftException() = IOException(MSG_NO_SPACE_LEFT)
 
 fun FileNotFoundException.getFile(): File? {
-	val groups = FNFE_MESSAGE_REGEX.matchEntire(message ?: return null)?.groupValues ?: return null
-	return groups.getOrNull(1)?.let { File(it) }
+    val groups = FNFE_MESSAGE_REGEX.matchEntire(message ?: return null)?.groupValues ?: return null
+    return groups.getOrNull(1)?.let { File(it) }
 }
 
 fun FileNotFoundException.parseMessage(resources: Resources): String? {
-	/*
-	Examples:
-	/storage/0000-0000/Android/media/d1f08350-0c25-460b-8f50-008e49de3873.jpg.tmp: open failed: EROFS (Read-only file system)
-	 /storage/emulated/0/Android/data/org.koitharu.kotatsu/cache/pages/fe06e192fa371e55918980f7a24c91ea.jpg: open failed: ENOENT (No such file or directory)
-	 /storage/0000-0000/Android/data/org.koitharu.kotatsu/files/manga/e57d3af4-216e-48b2-8432-1541d58eea1e.tmp (I/O error)
-	 */
-	val groups = FNFE_MESSAGE_REGEX.matchEntire(message ?: return null)?.groupValues ?: return null
-	val path = groups.getOrNull(1)
-	val error = groups.getOrNull(2)
-	val baseMessageIs = when (error) {
-		"EROFS" -> R.string.no_write_permission_to_file
-		"ENOENT" -> R.string.file_not_found
-		else -> return null
-	}
-	return if (path.isNullOrEmpty()) {
-		resources.getString(baseMessageIs)
-	} else {
-		resources.getString(
-			R.string.inline_preference_pattern,
-			resources.getString(baseMessageIs),
-			path,
-		)
-	}
+    /*
+    Examples:
+    /storage/0000-0000/Android/media/d1f08350-0c25-460b-8f50-008e49de3873.jpg.tmp: open failed: EROFS (Read-only file system)
+     /storage/emulated/0/Android/data/org.koitharu.kotatsu/cache/pages/fe06e192fa371e55918980f7a24c91ea.jpg: open failed: ENOENT (No such file or directory)
+     /storage/0000-0000/Android/data/org.koitharu.kotatsu/files/manga/e57d3af4-216e-48b2-8432-1541d58eea1e.tmp (I/O error)
+     */
+    val groups = FNFE_MESSAGE_REGEX.matchEntire(message ?: return null)?.groupValues ?: return null
+    val path = groups.getOrNull(1)
+    val error = groups.getOrNull(2)
+    val baseMessageIs = when (error) {
+        "EROFS" -> R.string.no_write_permission_to_file
+        "ENOENT" -> R.string.file_not_found
+        else -> return null
+    }
+    return if (path.isNullOrEmpty()) {
+        resources.getString(baseMessageIs)
+    } else {
+        resources.getString(
+            R.string.inline_preference_pattern,
+            resources.getString(baseMessageIs),
+            path,
+        )
+    }
 }
 

app/src/main/kotlin/org/koitharu/kotatsu/details/data/MangaDetails.kt

@@ -7,111 +7,115 @@ import org.koitharu.kotatsu.core.ui.model.MangaOverride
 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.MangaState
 import org.koitharu.kotatsu.parsers.util.ifNullOrEmpty
 import org.koitharu.kotatsu.parsers.util.nullIfEmpty
 import org.koitharu.kotatsu.reader.data.filterChapters
 import java.util.Locale
 
 data class MangaDetails(
-	private val manga: Manga,
-	private val localManga: LocalManga?,
-	private val override: MangaOverride?,
-	val description: CharSequence?,
-	val isLoaded: Boolean,
+    private val manga: Manga,
+    private val localManga: LocalManga?,
+    private val override: MangaOverride?,
+    val description: CharSequence?,
+    val isLoaded: Boolean,
 ) {
 
-	constructor(manga: Manga) : this(
-		manga = manga,
-		localManga = null,
-		override = null,
-		description = null,
-		isLoaded = false,
-	)
+    constructor(manga: Manga) : this(
+        manga = manga,
+        localManga = null,
+        override = null,
+        description = null,
+        isLoaded = false,
+    )
 
-	val id: Long
-		get() = manga.id
+    val id: Long
+        get() = manga.id
 
-	val allChapters: List<MangaChapter> by lazy { mergeChapters() }
+    val allChapters: List<MangaChapter> by lazy { mergeChapters() }
 
-	val chapters: Map<String?, List<MangaChapter>> by lazy {
-		allChapters.groupBy { it.branch }
-	}
+    val chapters: Map<String?, List<MangaChapter>> by lazy {
+        allChapters.groupBy { it.branch }
+    }
 
-	val isLocal
-		get() = manga.isLocal
+    val isLocal
+        get() = manga.isLocal
 
-	val local: LocalManga?
-		get() = localManga ?: if (manga.isLocal) LocalManga(manga) else null
+    val local: LocalManga?
+        get() = localManga ?: if (manga.isLocal) LocalManga(manga) else null
 
-	val coverUrl: String?
-		get() = override?.coverUrl
-			.ifNullOrEmpty { manga.largeCoverUrl }
-			.ifNullOrEmpty { manga.coverUrl }
-			.ifNullOrEmpty { localManga?.manga?.coverUrl }
-			?.nullIfEmpty()
+    val coverUrl: String?
+        get() = override?.coverUrl
+            .ifNullOrEmpty { manga.largeCoverUrl }
+            .ifNullOrEmpty { manga.coverUrl }
+            .ifNullOrEmpty { localManga?.manga?.coverUrl }
+            ?.nullIfEmpty()
 
-	private val mergedManga by lazy {
-		if (localManga == null) {
-			// fast path
-			manga.withOverride(override)
-		} else {
-			manga.copy(
-				title = override?.title.ifNullOrEmpty { manga.title },
-				coverUrl = override?.coverUrl.ifNullOrEmpty { manga.coverUrl },
-				largeCoverUrl = override?.coverUrl.ifNullOrEmpty { manga.largeCoverUrl },
-				contentRating = override?.contentRating ?: manga.contentRating,
-				chapters = allChapters,
-			)
-		}
-	}
+    val isRestricted: Boolean
+        get() = manga.state == MangaState.RESTRICTED
 
-	fun toManga() = mergedManga
+    private val mergedManga by lazy {
+        if (localManga == null) {
+            // fast path
+            manga.withOverride(override)
+        } else {
+            manga.copy(
+                title = override?.title.ifNullOrEmpty { manga.title },
+                coverUrl = override?.coverUrl.ifNullOrEmpty { manga.coverUrl },
+                largeCoverUrl = override?.coverUrl.ifNullOrEmpty { manga.largeCoverUrl },
+                contentRating = override?.contentRating ?: manga.contentRating,
+                chapters = allChapters,
+            )
+        }
+    }
 
-	fun getLocale(): Locale? {
-		findAppropriateLocale(chapters.keys.singleOrNull())?.let {
-			return it
-		}
-		return manga.source.getLocale()
-	}
+    fun toManga() = mergedManga
 
-	fun filterChapters(branch: String?) = copy(
-		manga = manga.filterChapters(branch),
-		localManga = localManga?.run {
-			copy(manga = manga.filterChapters(branch))
-		},
-	)
+    fun getLocale(): Locale? {
+        findAppropriateLocale(chapters.keys.singleOrNull())?.let {
+            return it
+        }
+        return manga.source.getLocale()
+    }
 
-	private fun mergeChapters(): List<MangaChapter> {
-		val chapters = manga.chapters
-		val localChapters = local?.manga?.chapters.orEmpty()
-		if (chapters.isNullOrEmpty()) {
-			return localChapters
-		}
-		val localMap = if (localChapters.isNotEmpty()) {
-			localChapters.associateByTo(LinkedHashMap(localChapters.size)) { it.id }
-		} else {
-			null
-		}
-		val result = ArrayList<MangaChapter>(chapters.size)
-		for (chapter in chapters) {
-			val local = localMap?.remove(chapter.id)
-			result += local ?: chapter
-		}
-		if (!localMap.isNullOrEmpty()) {
-			result.addAll(localMap.values)
-		}
-		return result
-	}
+    fun filterChapters(branch: String?) = copy(
+        manga = manga.filterChapters(branch),
+        localManga = localManga?.run {
+            copy(manga = manga.filterChapters(branch))
+        },
+    )
 
-	private fun findAppropriateLocale(name: String?): Locale? {
-		if (name.isNullOrEmpty()) {
-			return null
-		}
-		return Locale.getAvailableLocales().find { lc ->
-			name.contains(lc.getDisplayName(lc), ignoreCase = true) ||
-				name.contains(lc.getDisplayName(Locale.ENGLISH), ignoreCase = true) ||
-				name.contains(lc.getDisplayLanguage(lc), ignoreCase = true) ||
-				name.contains(lc.getDisplayLanguage(Locale.ENGLISH), ignoreCase = true)
-		}
-	}
+    private fun mergeChapters(): List<MangaChapter> {
+        val chapters = manga.chapters
+        val localChapters = local?.manga?.chapters.orEmpty()
+        if (chapters.isNullOrEmpty()) {
+            return localChapters
+        }
+        val localMap = if (localChapters.isNotEmpty()) {
+            localChapters.associateByTo(LinkedHashMap(localChapters.size)) { it.id }
+        } else {
+            null
+        }
+        val result = ArrayList<MangaChapter>(chapters.size)
+        for (chapter in chapters) {
+            val local = localMap?.remove(chapter.id)
+            result += local ?: chapter
+        }
+        if (!localMap.isNullOrEmpty()) {
+            result.addAll(localMap.values)
+        }
+        return result
+    }
+
+    private fun findAppropriateLocale(name: String?): Locale? {
+        if (name.isNullOrEmpty()) {
+            return null
+        }
+        return Locale.getAvailableLocales().find { lc ->
+            name.contains(lc.getDisplayName(lc), ignoreCase = true) ||
+                name.contains(lc.getDisplayName(Locale.ENGLISH), ignoreCase = true) ||
+                name.contains(lc.getDisplayLanguage(lc), ignoreCase = true) ||
+                name.contains(lc.getDisplayLanguage(Locale.ENGLISH), ignoreCase = true)
+        }
+    }
 }

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

@@ -99,10 +99,11 @@ class ChaptersPagesSheet : BaseAdaptiveSheet<SheetChaptersPagesBinding>(),
 	override fun onApplyWindowInsets(v: View, insets: WindowInsetsCompat): WindowInsetsCompat = insets
 
 	override fun onStateChanged(sheet: View, newState: Int) {
-		if (newState == STATE_DRAGGING || newState == STATE_SETTLING) {
-			return
-		}
-		val binding = viewBinding ?: return
+        val binding = viewBinding ?: return
+        binding.layoutTouchBlock.isTouchEventsAllowed = dialog != null || newState != STATE_COLLAPSED
+        if (newState == STATE_DRAGGING || newState == STATE_SETTLING) {
+            return
+        }
 		val isActionModeStarted = actionModeDelegate?.isActionModeStarted == true
 		binding.toolbar.menuView?.isVisible = newState == STATE_EXPANDED && !isActionModeStarted
 		binding.splitButtonRead.isVisible = newState != STATE_EXPANDED && !isActionModeStarted

app/src/main/kotlin/org/koitharu/kotatsu/details/ui/pager/chapters/ChaptersSelectionCallback.kt

@@ -3,6 +3,7 @@ package org.koitharu.kotatsu.details.ui.pager.chapters
 import android.view.Menu
 import android.view.MenuInflater
 import android.view.MenuItem
+import android.widget.Toast
 import androidx.appcompat.view.ActionMode
 import androidx.recyclerview.widget.RecyclerView
 import com.google.android.material.snackbar.Snackbar
@@ -11,6 +12,7 @@ import org.koitharu.kotatsu.core.model.LocalMangaSource
 import org.koitharu.kotatsu.core.nav.AppRouter
 import org.koitharu.kotatsu.core.ui.list.BaseListSelectionCallback
 import org.koitharu.kotatsu.core.ui.list.ListSelectionController
+import org.koitharu.kotatsu.core.util.ext.printStackTraceDebug
 import org.koitharu.kotatsu.core.util.ext.toCollection
 import org.koitharu.kotatsu.core.util.ext.toSet
 import org.koitharu.kotatsu.details.ui.pager.ChaptersPagesViewModel
@@ -78,11 +80,20 @@ class ChaptersSelectionCallback(
 					ids.size == manga.chapters?.size -> viewModel.deleteLocal()
 					else -> {
 						LocalChaptersRemoveService.start(recyclerView.context, manga, ids.toSet())
-						Snackbar.make(
-							recyclerView,
-							R.string.chapters_will_removed_background,
-							Snackbar.LENGTH_LONG,
-						).show()
+						try {
+							Snackbar.make(
+								recyclerView,
+								R.string.chapters_will_removed_background,
+								Snackbar.LENGTH_LONG,
+							).show()
+						} catch (e: IllegalArgumentException) {
+							e.printStackTraceDebug()
+							Toast.makeText(
+								recyclerView.context,
+								R.string.chapters_will_removed_background,
+								Toast.LENGTH_SHORT,
+							).show()
+						}
 					}
 				}
 				mode?.finish()

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

@@ -53,7 +53,9 @@ class MangaSourcesRepository @Inject constructor(
 		get() = db.getSourcesDao()
 
 	val allMangaSources: Set<MangaParserSource> = Collections.unmodifiableSet(
-		EnumSet.allOf(MangaParserSource::class.java)
+		EnumSet.noneOf<MangaParserSource>(MangaParserSource::class.java).also {
+            MangaParserSource.entries.filterNotTo(it, MangaParserSource::isBroken)
+        }
 	)
 
 	suspend fun getEnabledSources(): List<MangaSource> {

app/src/main/kotlin/org/koitharu/kotatsu/filter/data/MangaListFilterSerializer.kt

@@ -0,0 +1,161 @@
+package org.koitharu.kotatsu.filter.data
+
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.builtins.SetSerializer
+import kotlinx.serialization.builtins.serializer
+import kotlinx.serialization.descriptors.SerialDescriptor
+import kotlinx.serialization.descriptors.buildClassSerialDescriptor
+import kotlinx.serialization.descriptors.element
+import kotlinx.serialization.encoding.CompositeDecoder
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.encoding.Encoder
+import kotlinx.serialization.encoding.decodeStructure
+import kotlinx.serialization.encoding.encodeStructure
+import kotlinx.serialization.serializer
+import org.koitharu.kotatsu.core.model.MangaSource
+import org.koitharu.kotatsu.core.util.ext.toLocaleOrNull
+import org.koitharu.kotatsu.parsers.model.ContentRating
+import org.koitharu.kotatsu.parsers.model.ContentType
+import org.koitharu.kotatsu.parsers.model.Demographic
+import org.koitharu.kotatsu.parsers.model.MangaListFilter
+import org.koitharu.kotatsu.parsers.model.MangaState
+import org.koitharu.kotatsu.parsers.model.MangaTag
+import java.util.Locale
+
+object MangaListFilterSerializer : KSerializer<MangaListFilter> {
+
+    override val descriptor: SerialDescriptor =
+        buildClassSerialDescriptor(MangaListFilter::class.java.name) {
+            element<String?>("query", isOptional = true)
+            element(
+                elementName = "tags",
+                descriptor = SetSerializer(MangaTagSerializer).descriptor,
+                isOptional = true,
+            )
+            element(
+                elementName = "tagsExclude",
+                descriptor = SetSerializer(MangaTagSerializer).descriptor,
+                isOptional = true,
+            )
+            element<String?>("locale", isOptional = true)
+            element<String?>("originalLocale", isOptional = true)
+            element<Set<MangaState>>("states", isOptional = true)
+            element<Set<ContentRating>>("contentRating", isOptional = true)
+            element<Set<ContentType>>("types", isOptional = true)
+            element<Set<Demographic>>("demographics", isOptional = true)
+            element<Int>("year", isOptional = true)
+            element<Int>("yearFrom", isOptional = true)
+            element<Int>("yearTo", isOptional = true)
+            element<String?>("author", isOptional = true)
+        }
+
+    override fun serialize(
+        encoder: Encoder,
+        value: MangaListFilter
+    ) = encoder.encodeStructure(descriptor) {
+        encodeNullableSerializableElement(descriptor, 0, String.serializer(), value.query)
+        encodeSerializableElement(descriptor, 1, SetSerializer(MangaTagSerializer), value.tags)
+        encodeSerializableElement(descriptor, 2, SetSerializer(MangaTagSerializer), value.tagsExclude)
+        encodeNullableSerializableElement(descriptor, 3, String.serializer(), value.locale?.toLanguageTag())
+        encodeNullableSerializableElement(descriptor, 4, String.serializer(), value.originalLocale?.toLanguageTag())
+        encodeSerializableElement(descriptor, 5, SetSerializer(serializer()), value.states)
+        encodeSerializableElement(descriptor, 6, SetSerializer(serializer()), value.contentRating)
+        encodeSerializableElement(descriptor, 7, SetSerializer(serializer()), value.types)
+        encodeSerializableElement(descriptor, 8, SetSerializer(serializer()), value.demographics)
+        encodeIntElement(descriptor, 9, value.year)
+        encodeIntElement(descriptor, 10, value.yearFrom)
+        encodeIntElement(descriptor, 11, value.yearTo)
+        encodeNullableSerializableElement(descriptor, 12, String.serializer(), value.author)
+    }
+
+    override fun deserialize(
+        decoder: Decoder
+    ): MangaListFilter = decoder.decodeStructure(descriptor) {
+        var query: String? = MangaListFilter.EMPTY.query
+        var tags: Set<MangaTag> = MangaListFilter.EMPTY.tags
+        var tagsExclude: Set<MangaTag> = MangaListFilter.EMPTY.tagsExclude
+        var locale: Locale? = MangaListFilter.EMPTY.locale
+        var originalLocale: Locale? = MangaListFilter.EMPTY.originalLocale
+        var states: Set<MangaState> = MangaListFilter.EMPTY.states
+        var contentRating: Set<ContentRating> = MangaListFilter.EMPTY.contentRating
+        var types: Set<ContentType> = MangaListFilter.EMPTY.types
+        var demographics: Set<Demographic> = MangaListFilter.EMPTY.demographics
+        var year: Int = MangaListFilter.EMPTY.year
+        var yearFrom: Int = MangaListFilter.EMPTY.yearFrom
+        var yearTo: Int = MangaListFilter.EMPTY.yearTo
+        var author: String? = MangaListFilter.EMPTY.author
+
+        while (true) {
+            when (decodeElementIndex(descriptor)) {
+                0 -> query = decodeNullableSerializableElement(descriptor, 0, serializer<String>())
+                1 -> tags = decodeSerializableElement(descriptor, 1, SetSerializer(MangaTagSerializer))
+                2 -> tagsExclude = decodeSerializableElement(descriptor, 2, SetSerializer(MangaTagSerializer))
+                3 -> locale = decodeNullableSerializableElement(descriptor, 3, serializer<String>())?.toLocaleOrNull()
+                4 -> originalLocale =
+                    decodeNullableSerializableElement(descriptor, 4, serializer<String>())?.toLocaleOrNull()
+
+                5 -> states = decodeSerializableElement(descriptor, 5, SetSerializer(serializer()))
+                6 -> contentRating = decodeSerializableElement(descriptor, 6, SetSerializer(serializer()))
+                7 -> types = decodeSerializableElement(descriptor, 7, SetSerializer(serializer()))
+                8 -> demographics = decodeSerializableElement(descriptor, 8, SetSerializer(serializer()))
+                9 -> year = decodeIntElement(descriptor, 9)
+                10 -> yearFrom = decodeIntElement(descriptor, 10)
+                11 -> yearTo = decodeIntElement(descriptor, 11)
+                12 -> author = decodeNullableSerializableElement(descriptor, 12, serializer<String>())
+                CompositeDecoder.DECODE_DONE -> break
+            }
+        }
+
+        MangaListFilter(
+            query = query,
+            tags = tags,
+            tagsExclude = tagsExclude,
+            locale = locale,
+            originalLocale = originalLocale,
+            states = states,
+            contentRating = contentRating,
+            types = types,
+            demographics = demographics,
+            year = year,
+            yearFrom = yearFrom,
+            yearTo = yearTo,
+            author = author,
+        )
+    }
+
+    private object MangaTagSerializer : KSerializer<MangaTag> {
+
+        override val descriptor: SerialDescriptor = buildClassSerialDescriptor(MangaTag::class.java.name) {
+            element<String>("title")
+            element<String>("key")
+            element<String>("source")
+        }
+
+        override fun serialize(encoder: Encoder, value: MangaTag) = encoder.encodeStructure(descriptor) {
+            encodeStringElement(descriptor, 0, value.title)
+            encodeStringElement(descriptor, 1, value.key)
+            encodeStringElement(descriptor, 2, value.source.name)
+        }
+
+        override fun deserialize(decoder: Decoder): MangaTag = decoder.decodeStructure(descriptor) {
+            var title: String? = null
+            var key: String? = null
+            var source: String? = null
+
+            while (true) {
+                when (decodeElementIndex(descriptor)) {
+                    0 -> title = decodeStringElement(descriptor, 0)
+                    1 -> key = decodeStringElement(descriptor, 1)
+                    2 -> source = decodeStringElement(descriptor, 2)
+                    CompositeDecoder.DECODE_DONE -> break
+                }
+            }
+
+            MangaTag(
+                title = title ?: error("Missing 'title' field"),
+                key = key ?: error("Missing 'key' field"),
+                source = MangaSource(source),
+            )
+        }
+    }
+}

app/src/main/kotlin/org/koitharu/kotatsu/filter/data/PersistableFilter.kt

@@ -0,0 +1,30 @@
+package org.koitharu.kotatsu.filter.data
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.json.JsonIgnoreUnknownKeys
+import org.koitharu.kotatsu.core.model.MangaSourceSerializer
+import org.koitharu.kotatsu.parsers.model.MangaListFilter
+import org.koitharu.kotatsu.parsers.model.MangaSource
+
+@Serializable
+@JsonIgnoreUnknownKeys
+data class PersistableFilter(
+    @SerialName("name")
+    val name: String,
+    @Serializable(with = MangaSourceSerializer::class)
+    @SerialName("source")
+    val source: MangaSource,
+    @Serializable(with = MangaListFilterSerializer::class)
+    @SerialName("filter")
+    val filter: MangaListFilter,
+) {
+
+    val id: Int
+        get() = name.hashCode()
+
+    companion object {
+
+        const val MAX_TITLE_LENGTH = 18
+    }
+}

app/src/main/kotlin/org/koitharu/kotatsu/filter/data/SavedFiltersRepository.kt

@@ -0,0 +1,118 @@
+package org.koitharu.kotatsu.filter.data
+
+import android.content.Context
+import android.content.SharedPreferences
+import androidx.core.content.edit
+import dagger.Reusable
+import dagger.hilt.android.qualifiers.ApplicationContext
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.distinctUntilChanged
+import kotlinx.coroutines.flow.flowOn
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.onStart
+import kotlinx.coroutines.withContext
+import kotlinx.serialization.SerializationException
+import kotlinx.serialization.json.Json
+import org.koitharu.kotatsu.core.util.ext.observeChanges
+import org.koitharu.kotatsu.core.util.ext.printStackTraceDebug
+import org.koitharu.kotatsu.parsers.model.MangaListFilter
+import org.koitharu.kotatsu.parsers.model.MangaSource
+import java.io.File
+import javax.inject.Inject
+
+@Reusable
+class SavedFiltersRepository @Inject constructor(
+    @ApplicationContext private val context: Context,
+) {
+
+    fun observeAll(source: MangaSource): Flow<List<PersistableFilter>> = getPrefs(source).observeChanges()
+        .onStart { emit(null) }
+        .map {
+            getAll(source)
+        }.distinctUntilChanged()
+        .flowOn(Dispatchers.Default)
+
+    suspend fun getAll(source: MangaSource): List<PersistableFilter> = withContext(Dispatchers.Default) {
+        val prefs = getPrefs(source)
+        val keys = prefs.all.keys.filter { it.startsWith(FILTER_PREFIX) }
+        keys.mapNotNull { key ->
+            val value = prefs.getString(key, null) ?: return@mapNotNull null
+            try {
+                Json.decodeFromString(value)
+            } catch (e: SerializationException) {
+                e.printStackTraceDebug()
+                null
+            }
+        }
+    }
+
+    suspend fun save(
+        source: MangaSource,
+        name: String,
+        filter: MangaListFilter,
+    ): PersistableFilter = withContext(Dispatchers.Default) {
+        val persistableFilter = PersistableFilter(
+            name = name,
+            source = source,
+            filter = filter,
+        )
+        persist(persistableFilter)
+        persistableFilter
+    }
+
+    suspend fun save(
+        filter: PersistableFilter,
+    ) = withContext(Dispatchers.Default) {
+        persist(filter)
+    }
+
+    suspend fun rename(source: MangaSource, id: Int, newName: String) = withContext(Dispatchers.Default) {
+        val filter = load(source, id) ?: return@withContext
+        val newFilter = filter.copy(name = newName)
+        val prefs = getPrefs(source)
+        prefs.edit(commit = true) {
+            remove(key(id))
+            putString(key(newFilter.id), Json.encodeToString(newFilter))
+        }
+        newFilter
+    }
+
+    suspend fun delete(source: MangaSource, id: Int) = withContext(Dispatchers.Default) {
+        val prefs = getPrefs(source)
+        prefs.edit(commit = true) {
+            remove(key(id))
+        }
+    }
+
+    private fun persist(persistableFilter: PersistableFilter) {
+        val prefs = getPrefs(persistableFilter.source)
+        val json = Json.encodeToString(persistableFilter)
+        prefs.edit(commit = true) {
+            putString(key(persistableFilter.id), json)
+        }
+    }
+
+    private fun load(source: MangaSource, id: Int): PersistableFilter? {
+        val prefs = getPrefs(source)
+        val json = prefs.getString(key(id), null) ?: return null
+        return try {
+            Json.decodeFromString<PersistableFilter>(json)
+        } catch (e: SerializationException) {
+            e.printStackTraceDebug()
+            null
+        }
+    }
+
+    private fun getPrefs(source: MangaSource): SharedPreferences {
+        val key = source.name.replace(File.separatorChar, '$')
+        return context.getSharedPreferences(key, Context.MODE_PRIVATE)
+    }
+
+    private companion object {
+
+        const val FILTER_PREFIX = "__pf_"
+
+        fun key(id: Int) = FILTER_PREFIX + id
+    }
+}

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

@@ -17,6 +17,7 @@ import kotlinx.coroutines.flow.flow
 import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.flow.stateIn
 import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.launch
 import kotlinx.coroutines.plus
 import org.koitharu.kotatsu.core.model.MangaSource
 import org.koitharu.kotatsu.core.parser.MangaRepository
@@ -25,6 +26,8 @@ import org.koitharu.kotatsu.core.util.ext.asFlow
 import org.koitharu.kotatsu.core.util.ext.lifecycleScope
 import org.koitharu.kotatsu.core.util.ext.sortedByOrdinal
 import org.koitharu.kotatsu.core.util.ext.sortedWithSafe
+import org.koitharu.kotatsu.filter.data.PersistableFilter
+import org.koitharu.kotatsu.filter.data.SavedFiltersRepository
 import org.koitharu.kotatsu.filter.ui.model.FilterProperty
 import org.koitharu.kotatsu.filter.ui.tags.TagTitleComparator
 import org.koitharu.kotatsu.parsers.model.ContentRating
@@ -48,469 +51,502 @@ import javax.inject.Inject
 
 @ViewModelScoped
 class FilterCoordinator @Inject constructor(
-	savedStateHandle: SavedStateHandle,
-	mangaRepositoryFactory: MangaRepository.Factory,
-	private val searchRepository: MangaSearchRepository,
-	lifecycle: ViewModelLifecycle,
+    savedStateHandle: SavedStateHandle,
+    mangaRepositoryFactory: MangaRepository.Factory,
+    private val searchRepository: MangaSearchRepository,
+    private val savedFiltersRepository: SavedFiltersRepository,
+    lifecycle: ViewModelLifecycle,
 ) {
 
-	private val coroutineScope = lifecycle.lifecycleScope + Dispatchers.Default
-	private val repository = mangaRepositoryFactory.create(MangaSource(savedStateHandle[RemoteListFragment.ARG_SOURCE]))
-	private val sourceLocale = (repository.source as? MangaParserSource)?.locale
+    private val coroutineScope = lifecycle.lifecycleScope + Dispatchers.Default
+    private val repository = mangaRepositoryFactory.create(MangaSource(savedStateHandle[RemoteListFragment.ARG_SOURCE]))
+    private val sourceLocale = (repository.source as? MangaParserSource)?.locale
 
-	private val currentListFilter = MutableStateFlow(MangaListFilter.EMPTY)
-	private val currentSortOrder = MutableStateFlow(repository.defaultSortOrder)
+    private val currentListFilter = MutableStateFlow(MangaListFilter.EMPTY)
+    private val currentSortOrder = MutableStateFlow(repository.defaultSortOrder)
 
-	private val availableSortOrders = repository.sortOrders
-	private val filterOptions = suspendLazy { repository.getFilterOptions() }
-	val capabilities = repository.filterCapabilities
+    private val availableSortOrders = repository.sortOrders
+    private val filterOptions = suspendLazy { repository.getFilterOptions() }
 
-	val mangaSource: MangaSource
-		get() = repository.source
+    val capabilities = repository.filterCapabilities
 
-	val isFilterApplied: Boolean
-		get() = currentListFilter.value.isNotEmpty()
+    val mangaSource: MangaSource
+        get() = repository.source
 
-	val query: StateFlow<String?> = currentListFilter.map { it.query }
-		.stateIn(coroutineScope, SharingStarted.Eagerly, null)
+    val isFilterApplied: Boolean
+        get() = currentListFilter.value.isNotEmpty()
 
-	val sortOrder: StateFlow<FilterProperty<SortOrder>> = currentSortOrder.map { selected ->
-		FilterProperty(
-			availableItems = availableSortOrders.sortedByOrdinal(),
-			selectedItem = selected,
-		)
-	}.stateIn(coroutineScope, SharingStarted.Lazily, FilterProperty.LOADING)
+    val query: StateFlow<String?> = currentListFilter.map { it.query }
+        .stateIn(coroutineScope, SharingStarted.Eagerly, null)
 
-	val tags: StateFlow<FilterProperty<MangaTag>> = combine(
-		getTopTags(TAGS_LIMIT),
-		currentListFilter.distinctUntilChangedBy { it.tags },
-	) { available, selected ->
-		available.fold(
-			onSuccess = {
-				FilterProperty(
-					availableItems = it.addFirstDistinct(selected.tags),
-					selectedItems = selected.tags,
-				)
-			},
-			onFailure = {
-				FilterProperty.error(it)
-			},
-		)
-	}.stateIn(coroutineScope, SharingStarted.Lazily, FilterProperty.LOADING)
+    val sortOrder: StateFlow<FilterProperty<SortOrder>> = currentSortOrder.map { selected ->
+        FilterProperty(
+            availableItems = availableSortOrders.sortedByOrdinal(),
+            selectedItem = selected,
+        )
+    }.stateIn(coroutineScope, SharingStarted.Lazily, FilterProperty.LOADING)
 
-	val tagsExcluded: StateFlow<FilterProperty<MangaTag>> = if (capabilities.isTagsExclusionSupported) {
-		combine(
-			getBottomTags(TAGS_LIMIT),
-			currentListFilter.distinctUntilChangedBy { it.tagsExclude },
-		) { available, selected ->
-			available.fold(
-				onSuccess = {
-					FilterProperty(
-						availableItems = it.addFirstDistinct(selected.tagsExclude),
-						selectedItems = selected.tagsExclude,
-					)
-				},
-				onFailure = {
-					FilterProperty.error(it)
-				},
-			)
-		}.stateIn(coroutineScope, SharingStarted.Lazily, FilterProperty.LOADING)
-	} else {
-		MutableStateFlow(FilterProperty.EMPTY)
-	}
+    val tags: StateFlow<FilterProperty<MangaTag>> = combine(
+        getTopTags(TAGS_LIMIT),
+        currentListFilter.distinctUntilChangedBy { it.tags },
+    ) { available, selected ->
+        available.fold(
+            onSuccess = {
+                FilterProperty(
+                    availableItems = it.addFirstDistinct(selected.tags),
+                    selectedItems = selected.tags,
+                )
+            },
+            onFailure = {
+                FilterProperty.error(it)
+            },
+        )
+    }.stateIn(coroutineScope, SharingStarted.Lazily, FilterProperty.LOADING)
 
-	val states: StateFlow<FilterProperty<MangaState>> = combine(
-		filterOptions.asFlow(),
-		currentListFilter.distinctUntilChangedBy { it.states },
-	) { available, selected ->
-		available.fold(
-			onSuccess = {
-				FilterProperty(
-					availableItems = it.availableStates.sortedByOrdinal(),
-					selectedItems = selected.states,
-				)
-			},
-			onFailure = {
-				FilterProperty.error(it)
-			},
-		)
-	}.stateIn(coroutineScope, SharingStarted.Lazily, FilterProperty.LOADING)
+    val tagsExcluded: StateFlow<FilterProperty<MangaTag>> = if (capabilities.isTagsExclusionSupported) {
+        combine(
+            getBottomTags(TAGS_LIMIT),
+            currentListFilter.distinctUntilChangedBy { it.tagsExclude },
+        ) { available, selected ->
+            available.fold(
+                onSuccess = {
+                    FilterProperty(
+                        availableItems = it.addFirstDistinct(selected.tagsExclude),
+                        selectedItems = selected.tagsExclude,
+                    )
+                },
+                onFailure = {
+                    FilterProperty.error(it)
+                },
+            )
+        }.stateIn(coroutineScope, SharingStarted.Lazily, FilterProperty.LOADING)
+    } else {
+        MutableStateFlow(FilterProperty.EMPTY)
+    }
 
-	val contentRating: StateFlow<FilterProperty<ContentRating>> = combine(
-		filterOptions.asFlow(),
-		currentListFilter.distinctUntilChangedBy { it.contentRating },
-	) { available, selected ->
-		available.fold(
-			onSuccess = {
-				FilterProperty(
-					availableItems = it.availableContentRating.sortedByOrdinal(),
-					selectedItems = selected.contentRating,
-				)
-			},
-			onFailure = {
-				FilterProperty.error(it)
-			},
-		)
-	}.stateIn(coroutineScope, SharingStarted.Lazily, FilterProperty.LOADING)
+    val authors: StateFlow<FilterProperty<String>> = if (capabilities.isAuthorSearchSupported) {
+        combine(
+            flow { emit(searchRepository.getAuthors(repository.source, TAGS_LIMIT)) },
+            currentListFilter.distinctUntilChangedBy { it.author },
+        ) { available, selected ->
+            FilterProperty(
+                availableItems = available,
+                selectedItems = setOfNotNull(selected.author),
+            )
+        }.stateIn(coroutineScope, SharingStarted.Lazily, FilterProperty.LOADING)
+    } else {
+        MutableStateFlow(FilterProperty.EMPTY)
+    }
 
-	val contentTypes: StateFlow<FilterProperty<ContentType>> = combine(
-		filterOptions.asFlow(),
-		currentListFilter.distinctUntilChangedBy { it.types },
-	) { available, selected ->
-		available.fold(
-			onSuccess = {
-				FilterProperty(
-					availableItems = it.availableContentTypes.sortedByOrdinal(),
-					selectedItems = selected.types,
-				)
-			},
-			onFailure = {
-				FilterProperty.error(it)
-			},
-		)
-	}.stateIn(coroutineScope, SharingStarted.Lazily, FilterProperty.LOADING)
+    val states: StateFlow<FilterProperty<MangaState>> = combine(
+        filterOptions.asFlow(),
+        currentListFilter.distinctUntilChangedBy { it.states },
+    ) { available, selected ->
+        available.fold(
+            onSuccess = {
+                FilterProperty(
+                    availableItems = it.availableStates.sortedByOrdinal(),
+                    selectedItems = selected.states,
+                )
+            },
+            onFailure = {
+                FilterProperty.error(it)
+            },
+        )
+    }.stateIn(coroutineScope, SharingStarted.Lazily, FilterProperty.LOADING)
 
-	val demographics: StateFlow<FilterProperty<Demographic>> = combine(
-		filterOptions.asFlow(),
-		currentListFilter.distinctUntilChangedBy { it.demographics },
-	) { available, selected ->
-		available.fold(
-			onSuccess = {
-				FilterProperty(
-					availableItems = it.availableDemographics.sortedByOrdinal(),
-					selectedItems = selected.demographics,
-				)
-			},
-			onFailure = {
-				FilterProperty.error(it)
-			},
-		)
-	}.stateIn(coroutineScope, SharingStarted.Lazily, FilterProperty.LOADING)
+    val contentRating: StateFlow<FilterProperty<ContentRating>> = combine(
+        filterOptions.asFlow(),
+        currentListFilter.distinctUntilChangedBy { it.contentRating },
+    ) { available, selected ->
+        available.fold(
+            onSuccess = {
+                FilterProperty(
+                    availableItems = it.availableContentRating.sortedByOrdinal(),
+                    selectedItems = selected.contentRating,
+                )
+            },
+            onFailure = {
+                FilterProperty.error(it)
+            },
+        )
+    }.stateIn(coroutineScope, SharingStarted.Lazily, FilterProperty.LOADING)
 
-	val locale: StateFlow<FilterProperty<Locale?>> = combine(
-		filterOptions.asFlow(),
-		currentListFilter.distinctUntilChangedBy { it.locale },
-	) { available, selected ->
-		available.fold(
-			onSuccess = {
-				FilterProperty(
-					availableItems = it.availableLocales.sortedWithSafe(LocaleComparator()).addFirstDistinct(null),
-					selectedItems = setOfNotNull(selected.locale),
-				)
-			},
-			onFailure = {
-				FilterProperty.error(it)
-			},
-		)
-	}.stateIn(coroutineScope, SharingStarted.Lazily, FilterProperty.LOADING)
+    val contentTypes: StateFlow<FilterProperty<ContentType>> = combine(
+        filterOptions.asFlow(),
+        currentListFilter.distinctUntilChangedBy { it.types },
+    ) { available, selected ->
+        available.fold(
+            onSuccess = {
+                FilterProperty(
+                    availableItems = it.availableContentTypes.sortedByOrdinal(),
+                    selectedItems = selected.types,
+                )
+            },
+            onFailure = {
+                FilterProperty.error(it)
+            },
+        )
+    }.stateIn(coroutineScope, SharingStarted.Lazily, FilterProperty.LOADING)
 
-	val originalLocale: StateFlow<FilterProperty<Locale?>> = if (capabilities.isOriginalLocaleSupported) {
-		combine(
-			filterOptions.asFlow(),
-			currentListFilter.distinctUntilChangedBy { it.originalLocale },
-		) { available, selected ->
-			available.fold(
-				onSuccess = {
-					FilterProperty(
-						availableItems = it.availableLocales.sortedWithSafe(LocaleComparator()).addFirstDistinct(null),
-						selectedItems = setOfNotNull(selected.originalLocale),
-					)
-				},
-				onFailure = {
-					FilterProperty.error(it)
-				},
-			)
-		}.stateIn(coroutineScope, SharingStarted.Lazily, FilterProperty.LOADING)
-	} else {
-		MutableStateFlow(FilterProperty.EMPTY)
-	}
+    val demographics: StateFlow<FilterProperty<Demographic>> = combine(
+        filterOptions.asFlow(),
+        currentListFilter.distinctUntilChangedBy { it.demographics },
+    ) { available, selected ->
+        available.fold(
+            onSuccess = {
+                FilterProperty(
+                    availableItems = it.availableDemographics.sortedByOrdinal(),
+                    selectedItems = selected.demographics,
+                )
+            },
+            onFailure = {
+                FilterProperty.error(it)
+            },
+        )
+    }.stateIn(coroutineScope, SharingStarted.Lazily, FilterProperty.LOADING)
 
-	val year: StateFlow<FilterProperty<Int>> = if (capabilities.isYearSupported) {
-		currentListFilter.distinctUntilChangedBy { it.year }.map { selected ->
-			FilterProperty(
-				availableItems = listOf(YEAR_MIN, MAX_YEAR),
-				selectedItems = setOf(selected.year),
-			)
-		}.stateIn(coroutineScope, SharingStarted.Lazily, FilterProperty.LOADING)
-	} else {
-		MutableStateFlow(FilterProperty.EMPTY)
-	}
+    val locale: StateFlow<FilterProperty<Locale?>> = combine(
+        filterOptions.asFlow(),
+        currentListFilter.distinctUntilChangedBy { it.locale },
+    ) { available, selected ->
+        available.fold(
+            onSuccess = {
+                FilterProperty(
+                    availableItems = it.availableLocales.sortedWithSafe(LocaleComparator()).addFirstDistinct(null),
+                    selectedItems = setOfNotNull(selected.locale),
+                )
+            },
+            onFailure = {
+                FilterProperty.error(it)
+            },
+        )
+    }.stateIn(coroutineScope, SharingStarted.Lazily, FilterProperty.LOADING)
 
-	val yearRange: StateFlow<FilterProperty<Int>> = if (capabilities.isYearRangeSupported) {
-		currentListFilter.distinctUntilChanged { old, new ->
-			old.yearTo == new.yearTo && old.yearFrom == new.yearFrom
-		}.map { selected ->
-			FilterProperty(
-				availableItems = listOf(YEAR_MIN, MAX_YEAR),
-				selectedItems = setOf(selected.yearFrom.ifZero { YEAR_MIN }, selected.yearTo.ifZero { MAX_YEAR }),
-			)
-		}.stateIn(coroutineScope, SharingStarted.Lazily, FilterProperty.LOADING)
-	} else {
-		MutableStateFlow(FilterProperty.EMPTY)
-	}
+    val originalLocale: StateFlow<FilterProperty<Locale?>> = if (capabilities.isOriginalLocaleSupported) {
+        combine(
+            filterOptions.asFlow(),
+            currentListFilter.distinctUntilChangedBy { it.originalLocale },
+        ) { available, selected ->
+            available.fold(
+                onSuccess = {
+                    FilterProperty(
+                        availableItems = it.availableLocales.sortedWithSafe(LocaleComparator()).addFirstDistinct(null),
+                        selectedItems = setOfNotNull(selected.originalLocale),
+                    )
+                },
+                onFailure = {
+                    FilterProperty.error(it)
+                },
+            )
+        }.stateIn(coroutineScope, SharingStarted.Lazily, FilterProperty.LOADING)
+    } else {
+        MutableStateFlow(FilterProperty.EMPTY)
+    }
 
-	fun reset() {
-		currentListFilter.value = MangaListFilter.EMPTY
-	}
+    val year: StateFlow<FilterProperty<Int>> = if (capabilities.isYearSupported) {
+        currentListFilter.distinctUntilChangedBy { it.year }.map { selected ->
+            FilterProperty(
+                availableItems = listOf(YEAR_MIN, MAX_YEAR),
+                selectedItems = setOf(selected.year),
+            )
+        }.stateIn(coroutineScope, SharingStarted.Lazily, FilterProperty.LOADING)
+    } else {
+        MutableStateFlow(FilterProperty.EMPTY)
+    }
 
-	fun snapshot() = Snapshot(
-		sortOrder = currentSortOrder.value,
-		listFilter = currentListFilter.value,
-	)
+    val yearRange: StateFlow<FilterProperty<Int>> = if (capabilities.isYearRangeSupported) {
+        currentListFilter.distinctUntilChanged { old, new ->
+            old.yearTo == new.yearTo && old.yearFrom == new.yearFrom
+        }.map { selected ->
+            FilterProperty(
+                availableItems = listOf(YEAR_MIN, MAX_YEAR),
+                selectedItems = setOf(selected.yearFrom.ifZero { YEAR_MIN }, selected.yearTo.ifZero { MAX_YEAR }),
+            )
+        }.stateIn(coroutineScope, SharingStarted.Lazily, FilterProperty.LOADING)
+    } else {
+        MutableStateFlow(FilterProperty.EMPTY)
+    }
 
-	fun observe(): Flow<Snapshot> = combine(currentSortOrder, currentListFilter, ::Snapshot)
+    val savedFilters: StateFlow<FilterProperty<PersistableFilter>> = combine(
+        savedFiltersRepository.observeAll(repository.source),
+        currentListFilter,
+    ) { available, applied ->
+        FilterProperty(
+            availableItems = available,
+            selectedItems = setOfNotNull(available.find { it.filter == applied }),
+        )
+    }.stateIn(coroutineScope, SharingStarted.Lazily, FilterProperty.EMPTY)
 
-	fun setSortOrder(newSortOrder: SortOrder) {
-		currentSortOrder.value = newSortOrder
-		repository.defaultSortOrder = newSortOrder
-	}
+    fun reset() {
+        currentListFilter.value = MangaListFilter.EMPTY
+    }
 
-	fun set(value: MangaListFilter) {
-		currentListFilter.value = value
-	}
+    fun snapshot() = Snapshot(
+        sortOrder = currentSortOrder.value,
+        listFilter = currentListFilter.value,
+    )
 
-	fun setAdjusted(value: MangaListFilter) {
-		var newFilter = value
-		if (!newFilter.author.isNullOrEmpty() && !capabilities.isAuthorSearchSupported) {
-			newFilter = newFilter.copy(
-				query = newFilter.author,
-				author = null,
-			)
-		}
-		if (!capabilities.isSearchSupported && !newFilter.query.isNullOrEmpty()) {
-			newFilter = newFilter.copy(
-				query = null,
-			)
-		}
-		if (!newFilter.query.isNullOrEmpty() && !newFilter.hasNonSearchOptions() && !capabilities.isSearchWithFiltersSupported) {
-			newFilter = MangaListFilter(query = newFilter.query)
-		}
-		set(newFilter)
-	}
+    fun observe(): Flow<Snapshot> = combine(currentSortOrder, currentListFilter, ::Snapshot)
 
-	fun setQuery(value: String?) {
-		val newQuery = value?.trim()?.nullIfEmpty()
-		currentListFilter.update { oldValue ->
-			if (capabilities.isSearchWithFiltersSupported || newQuery == null) {
-				oldValue.copy(query = newQuery)
-			} else {
-				MangaListFilter(query = newQuery)
-			}
-		}
-	}
+    fun setSortOrder(newSortOrder: SortOrder) {
+        currentSortOrder.value = newSortOrder
+        repository.defaultSortOrder = newSortOrder
+    }
 
-	fun setLocale(value: Locale?) {
-		currentListFilter.update { oldValue ->
-			oldValue.copy(
-				locale = value,
-				query = oldValue.takeQueryIfSupported(),
-			)
-		}
-	}
+    fun set(value: MangaListFilter) {
+        currentListFilter.value = value
+    }
 
-	fun setAuthor(value: String?) {
-		currentListFilter.update { oldValue ->
-			oldValue.copy(
-				author = value,
-				query = oldValue.takeQueryIfSupported(),
-			)
-		}
-	}
+    fun setAdjusted(value: MangaListFilter) {
+        var newFilter = value
+        if (!newFilter.author.isNullOrEmpty() && !capabilities.isAuthorSearchSupported) {
+            newFilter = newFilter.copy(
+                query = newFilter.author,
+                author = null,
+            )
+        }
+        if (!newFilter.query.isNullOrEmpty() && !newFilter.hasNonSearchOptions() && !capabilities.isSearchWithFiltersSupported) {
+            newFilter = MangaListFilter(query = newFilter.query)
+        }
+        set(newFilter)
+    }
 
-	fun setOriginalLocale(value: Locale?) {
-		currentListFilter.update { oldValue ->
-			oldValue.copy(
-				originalLocale = value,
-				query = oldValue.takeQueryIfSupported(),
-			)
-		}
-	}
+    fun saveCurrentFilter(name: String) = coroutineScope.launch {
+        savedFiltersRepository.save(repository.source, name, currentListFilter.value)
+    }
 
-	fun setYear(value: Int) {
-		currentListFilter.update { oldValue ->
-			oldValue.copy(
-				year = value,
-				query = oldValue.takeQueryIfSupported(),
-			)
-		}
-	}
+    fun renameSavedFilter(id: Int, newName: String) = coroutineScope.launch {
+        savedFiltersRepository.rename(repository.source, id, newName)
+    }
 
-	fun setYearRange(valueFrom: Int, valueTo: Int) {
-		currentListFilter.update { oldValue ->
-			oldValue.copy(
-				yearFrom = valueFrom,
-				yearTo = valueTo,
-				query = oldValue.takeQueryIfSupported(),
-			)
-		}
-	}
+    fun deleteSavedFilter(id: Int) = coroutineScope.launch {
+        savedFiltersRepository.delete(repository.source, id)
+    }
 
-	fun toggleState(value: MangaState, isSelected: Boolean) {
-		currentListFilter.update { oldValue ->
-			oldValue.copy(
-				states = if (isSelected) oldValue.states + value else oldValue.states - value,
-				query = oldValue.takeQueryIfSupported(),
-			)
-		}
-	}
+    fun setQuery(value: String?) {
+        val newQuery = value?.trim()?.nullIfEmpty()
+        currentListFilter.update { oldValue ->
+            if (capabilities.isSearchWithFiltersSupported || newQuery == null) {
+                oldValue.copy(query = newQuery)
+            } else {
+                MangaListFilter(query = newQuery)
+            }
+        }
+    }
 
-	fun toggleContentRating(value: ContentRating, isSelected: Boolean) {
-		currentListFilter.update { oldValue ->
-			oldValue.copy(
-				contentRating = if (isSelected) oldValue.contentRating + value else oldValue.contentRating - value,
-				query = oldValue.takeQueryIfSupported(),
-			)
-		}
-	}
+    fun setLocale(value: Locale?) {
+        currentListFilter.update { oldValue ->
+            oldValue.copy(
+                locale = value,
+                query = oldValue.takeQueryIfSupported(),
+            )
+        }
+    }
 
-	fun toggleDemographic(value: Demographic, isSelected: Boolean) {
-		currentListFilter.update { oldValue ->
-			oldValue.copy(
-				demographics = if (isSelected) oldValue.demographics + value else oldValue.demographics - value,
-				query = oldValue.takeQueryIfSupported(),
-			)
-		}
-	}
+    fun setAuthor(value: String?) {
+        currentListFilter.update { oldValue ->
+            oldValue.copy(
+                author = value,
+                query = oldValue.takeQueryIfSupported(),
+            )
+        }
+    }
 
-	fun toggleContentType(value: ContentType, isSelected: Boolean) {
-		currentListFilter.update { oldValue ->
-			oldValue.copy(
-				types = if (isSelected) oldValue.types + value else oldValue.types - value,
-				query = oldValue.takeQueryIfSupported(),
-			)
-		}
-	}
+    fun setOriginalLocale(value: Locale?) {
+        currentListFilter.update { oldValue ->
+            oldValue.copy(
+                originalLocale = value,
+                query = oldValue.takeQueryIfSupported(),
+            )
+        }
+    }
 
-	fun toggleTag(value: MangaTag, isSelected: Boolean) {
-		currentListFilter.update { oldValue ->
-			val newTags = if (capabilities.isMultipleTagsSupported) {
-				if (isSelected) oldValue.tags + value else oldValue.tags - value
-			} else {
-				if (isSelected) setOf(value) else emptySet()
-			}
-			oldValue.copy(
-				tags = newTags,
-				tagsExclude = oldValue.tagsExclude - newTags,
-				query = oldValue.takeQueryIfSupported(),
-			)
-		}
-	}
+    fun setYear(value: Int) {
+        currentListFilter.update { oldValue ->
+            oldValue.copy(
+                year = value,
+                query = oldValue.takeQueryIfSupported(),
+            )
+        }
+    }
 
-	fun toggleTagExclude(value: MangaTag, isSelected: Boolean) {
-		currentListFilter.update { oldValue ->
-			val newTagsExclude = if (capabilities.isMultipleTagsSupported) {
-				if (isSelected) oldValue.tagsExclude + value else oldValue.tagsExclude - value
-			} else {
-				if (isSelected) setOf(value) else emptySet()
-			}
-			oldValue.copy(
-				tags = oldValue.tags - newTagsExclude,
-				tagsExclude = newTagsExclude,
-				query = oldValue.takeQueryIfSupported(),
-			)
-		}
-	}
+    fun setYearRange(valueFrom: Int, valueTo: Int) {
+        currentListFilter.update { oldValue ->
+            oldValue.copy(
+                yearFrom = valueFrom,
+                yearTo = valueTo,
+                query = oldValue.takeQueryIfSupported(),
+            )
+        }
+    }
 
-	fun getAllTags(): Flow<Result<List<MangaTag>>> = filterOptions.asFlow().map {
-		it.map { x -> x.availableTags.sortedWithSafe(TagTitleComparator(sourceLocale)) }
-	}
+    fun toggleState(value: MangaState, isSelected: Boolean) {
+        currentListFilter.update { oldValue ->
+            oldValue.copy(
+                states = if (isSelected) oldValue.states + value else oldValue.states - value,
+                query = oldValue.takeQueryIfSupported(),
+            )
+        }
+    }
 
-	private fun MangaListFilter.takeQueryIfSupported() = when {
-		capabilities.isSearchWithFiltersSupported -> query
-		query.isNullOrEmpty() -> query
-		hasNonSearchOptions() -> null
-		else -> query
-	}
+    fun toggleContentRating(value: ContentRating, isSelected: Boolean) {
+        currentListFilter.update { oldValue ->
+            oldValue.copy(
+                contentRating = if (isSelected) oldValue.contentRating + value else oldValue.contentRating - value,
+                query = oldValue.takeQueryIfSupported(),
+            )
+        }
+    }
 
-	private fun getTopTags(limit: Int): Flow<Result<List<MangaTag>>> = combine(
-		flow { emit(searchRepository.getTopTags(repository.source, limit)) },
-		filterOptions.asFlow(),
-	) { suggested, options ->
-		val all = options.getOrNull()?.availableTags.orEmpty()
-		val result = ArrayList<MangaTag>(limit)
-		result.addAll(suggested.take(limit))
-		if (result.size < limit) {
-			result.addAll(all.shuffled().take(limit - result.size))
-		}
-		if (result.isNotEmpty()) {
-			Result.success(result)
-		} else {
-			options.map { result }
-		}
-	}.catch {
-		emit(Result.failure(it))
-	}
+    fun toggleDemographic(value: Demographic, isSelected: Boolean) {
+        currentListFilter.update { oldValue ->
+            oldValue.copy(
+                demographics = if (isSelected) oldValue.demographics + value else oldValue.demographics - value,
+                query = oldValue.takeQueryIfSupported(),
+            )
+        }
+    }
 
-	private fun getBottomTags(limit: Int): Flow<Result<List<MangaTag>>> = combine(
-		flow { emit(searchRepository.getRareTags(repository.source, limit)) },
-		filterOptions.asFlow(),
-	) { suggested, options ->
-		val all = options.getOrNull()?.availableTags.orEmpty()
-		val result = ArrayList<MangaTag>(limit)
-		result.addAll(suggested.take(limit))
-		if (result.size < limit) {
-			result.addAll(all.shuffled().take(limit - result.size))
-		}
-		if (result.isNotEmpty()) {
-			Result.success(result)
-		} else {
-			options.map { result }
-		}
-	}.catch {
-		emit(Result.failure(it))
-	}
+    fun toggleContentType(value: ContentType, isSelected: Boolean) {
+        currentListFilter.update { oldValue ->
+            oldValue.copy(
+                types = if (isSelected) oldValue.types + value else oldValue.types - value,
+                query = oldValue.takeQueryIfSupported(),
+            )
+        }
+    }
 
-	private fun <T> List<T>.addFirstDistinct(other: Collection<T>): List<T> {
-		val result = ArrayDeque<T>(this.size + other.size)
-		result.addAll(this)
-		for (item in other) {
-			if (item !in result) {
-				result.addFirst(item)
-			}
-		}
-		return result
-	}
+    fun toggleTag(value: MangaTag, isSelected: Boolean) {
+        currentListFilter.update { oldValue ->
+            val newTags = if (capabilities.isMultipleTagsSupported) {
+                if (isSelected) oldValue.tags + value else oldValue.tags - value
+            } else {
+                if (isSelected) setOf(value) else emptySet()
+            }
+            oldValue.copy(
+                tags = newTags,
+                tagsExclude = oldValue.tagsExclude - newTags,
+                query = oldValue.takeQueryIfSupported(),
+            )
+        }
+    }
 
-	private fun <T> List<T>.addFirstDistinct(item: T): List<T> {
-		val result = ArrayDeque<T>(this.size + 1)
-		result.addAll(this)
-		if (item !in result) {
-			result.addFirst(item)
-		}
-		return result
-	}
+    fun toggleTagExclude(value: MangaTag, isSelected: Boolean) {
+        currentListFilter.update { oldValue ->
+            val newTagsExclude = if (capabilities.isMultipleTagsSupported) {
+                if (isSelected) oldValue.tagsExclude + value else oldValue.tagsExclude - value
+            } else {
+                if (isSelected) setOf(value) else emptySet()
+            }
+            oldValue.copy(
+                tags = oldValue.tags - newTagsExclude,
+                tagsExclude = newTagsExclude,
+                query = oldValue.takeQueryIfSupported(),
+            )
+        }
+    }
 
-	data class Snapshot(
-		val sortOrder: SortOrder,
-		val listFilter: MangaListFilter,
-	)
+    fun getAllTags(): Flow<Result<List<MangaTag>>> = filterOptions.asFlow().map {
+        it.map { x -> x.availableTags.sortedWithSafe(TagTitleComparator(sourceLocale)) }
+    }
 
-	interface Owner {
+    private fun MangaListFilter.takeQueryIfSupported() = when {
+        capabilities.isSearchWithFiltersSupported -> query
+        query.isNullOrEmpty() -> query
+        hasNonSearchOptions() -> null
+        else -> query
+    }
 
-		val filterCoordinator: FilterCoordinator
-	}
+    private fun getTopTags(limit: Int): Flow<Result<List<MangaTag>>> = combine(
+        flow { emit(searchRepository.getTopTags(repository.source, limit)) },
+        filterOptions.asFlow(),
+    ) { suggested, options ->
+        val all = options.getOrNull()?.availableTags.orEmpty()
+        val result = ArrayList<MangaTag>(limit)
+        result.addAll(suggested.take(limit))
+        if (result.size < limit) {
+            result.addAll(all.shuffled().take(limit - result.size))
+        }
+        if (result.isNotEmpty()) {
+            Result.success(result)
+        } else {
+            options.map { result }
+        }
+    }.catch {
+        emit(Result.failure(it))
+    }
 
-	companion object {
+    private fun getBottomTags(limit: Int): Flow<Result<List<MangaTag>>> = combine(
+        flow { emit(searchRepository.getRareTags(repository.source, limit)) },
+        filterOptions.asFlow(),
+    ) { suggested, options ->
+        val all = options.getOrNull()?.availableTags.orEmpty()
+        val result = ArrayList<MangaTag>(limit)
+        result.addAll(suggested.take(limit))
+        if (result.size < limit) {
+            result.addAll(all.shuffled().take(limit - result.size))
+        }
+        if (result.isNotEmpty()) {
+            Result.success(result)
+        } else {
+            options.map { result }
+        }
+    }.catch {
+        emit(Result.failure(it))
+    }
 
-		private const val TAGS_LIMIT = 12
-		private val MAX_YEAR = Calendar.getInstance()[Calendar.YEAR] + 1
+    private fun <T> List<T>.addFirstDistinct(other: Collection<T>): List<T> {
+        val result = ArrayDeque<T>(this.size + other.size)
+        result.addAll(this)
+        for (item in other) {
+            if (item !in result) {
+                result.addFirst(item)
+            }
+        }
+        return result
+    }
 
-		fun find(fragment: Fragment): FilterCoordinator? {
-			(fragment.activity as? Owner)?.let {
-				return it.filterCoordinator
-			}
-			var f = fragment
-			while (true) {
-				(f as? Owner)?.let {
-					return it.filterCoordinator
-				}
-				f = f.parentFragment ?: break
-			}
-			return null
-		}
+    private fun <T> List<T>.addFirstDistinct(item: T): List<T> {
+        val result = ArrayDeque<T>(this.size + 1)
+        result.addAll(this)
+        if (item !in result) {
+            result.addFirst(item)
+        }
+        return result
+    }
 
-		fun require(fragment: Fragment): FilterCoordinator {
-			return find(fragment) ?: throw IllegalStateException("FilterCoordinator cannot be found")
-		}
- 	}
+    data class Snapshot(
+        val sortOrder: SortOrder,
+        val listFilter: MangaListFilter,
+    )
+
+    interface Owner {
+
+        val filterCoordinator: FilterCoordinator
+    }
+
+    companion object {
+
+        private const val TAGS_LIMIT = 12
+        private val MAX_YEAR = Calendar.getInstance()[Calendar.YEAR] + 1
+
+        fun find(fragment: Fragment): FilterCoordinator? {
+            (fragment.activity as? Owner)?.let {
+                return it.filterCoordinator
+            }
+            var f = fragment
+            while (true) {
+                (f as? Owner)?.let {
+                    return it.filterCoordinator
+                }
+                f = f.parentFragment ?: break
+            }
+            return null
+        }
+
+        fun require(fragment: Fragment): FilterCoordinator {
+            return find(fragment) ?: throw IllegalStateException("FilterCoordinator cannot be found")
+        }
+    }
 }

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

@@ -16,6 +16,7 @@ import org.koitharu.kotatsu.core.ui.widgets.ChipsView
 import org.koitharu.kotatsu.core.util.ext.isAnimationsEnabled
 import org.koitharu.kotatsu.core.util.ext.observe
 import org.koitharu.kotatsu.databinding.FragmentFilterHeaderBinding
+import org.koitharu.kotatsu.filter.data.PersistableFilter
 import org.koitharu.kotatsu.filter.ui.model.FilterHeaderModel
 import org.koitharu.kotatsu.parsers.model.ContentRating
 import org.koitharu.kotatsu.parsers.model.ContentType
@@ -28,69 +29,75 @@ import javax.inject.Inject
 
 @AndroidEntryPoint
 class FilterHeaderFragment : BaseFragment<FragmentFilterHeaderBinding>(), ChipsView.OnChipClickListener,
-	ChipsView.OnChipCloseClickListener {
+    ChipsView.OnChipCloseClickListener {
 
-	@Inject
-	lateinit var filterHeaderProducer: FilterHeaderProducer
+    @Inject
+    lateinit var filterHeaderProducer: FilterHeaderProducer
 
-	private val filter: FilterCoordinator
-		get() = (requireActivity() as FilterCoordinator.Owner).filterCoordinator
+    private val filter: FilterCoordinator
+        get() = (requireActivity() as FilterCoordinator.Owner).filterCoordinator
 
-	override fun onCreateViewBinding(inflater: LayoutInflater, container: ViewGroup?): FragmentFilterHeaderBinding {
-		return FragmentFilterHeaderBinding.inflate(inflater, container, false)
-	}
+    override fun onCreateViewBinding(inflater: LayoutInflater, container: ViewGroup?): FragmentFilterHeaderBinding {
+        return FragmentFilterHeaderBinding.inflate(inflater, container, false)
+    }
 
-	override fun onViewBindingCreated(binding: FragmentFilterHeaderBinding, savedInstanceState: Bundle?) {
-		super.onViewBindingCreated(binding, savedInstanceState)
-		binding.chipsTags.onChipClickListener = this
-		binding.chipsTags.onChipCloseClickListener = this
-		filterHeaderProducer.observeHeader(filter)
-			.flowOn(Dispatchers.Default)
-			.observe(viewLifecycleOwner, ::onDataChanged)
-	}
+    override fun onViewBindingCreated(binding: FragmentFilterHeaderBinding, savedInstanceState: Bundle?) {
+        super.onViewBindingCreated(binding, savedInstanceState)
+        binding.chipsTags.onChipClickListener = this
+        binding.chipsTags.onChipCloseClickListener = this
+        filterHeaderProducer.observeHeader(filter)
+            .flowOn(Dispatchers.Default)
+            .observe(viewLifecycleOwner, ::onDataChanged)
+    }
 
-	override fun onApplyWindowInsets(v: View, insets: WindowInsetsCompat): WindowInsetsCompat = insets
+    override fun onApplyWindowInsets(v: View, insets: WindowInsetsCompat): WindowInsetsCompat = insets
 
-	override fun onChipClick(chip: Chip, data: Any?) {
-		when (data) {
-			is MangaTag -> filter.toggleTag(data, !chip.isChecked)
-			is String -> Unit
-			null -> router.showTagsCatalogSheet(excludeMode = false)
-		}
-	}
+    override fun onChipClick(chip: Chip, data: Any?) {
+        when (data) {
+            is MangaTag -> filter.toggleTag(data, !chip.isChecked)
+            is PersistableFilter -> if (chip.isChecked) {
+                filter.reset()
+            } else {
+                filter.setAdjusted(data.filter)
+            }
 
-	override fun onChipCloseClick(chip: Chip, data: Any?) {
-		when (data) {
-			is String -> if (data == filter.snapshot().listFilter.author) {
-				filter.setAuthor(null)
-			} else {
-				filter.setQuery(null)
-			}
+            is String -> Unit
+            null -> router.showTagsCatalogSheet(excludeMode = false)
+        }
+    }
 
-			is ContentRating -> filter.toggleContentRating(data, false)
-			is Demographic -> filter.toggleDemographic(data, false)
-			is ContentType -> filter.toggleContentType(data, false)
-			is MangaState -> filter.toggleState(data, false)
-			is Locale -> filter.setLocale(null)
-			is Int -> filter.setYear(YEAR_UNKNOWN)
-			is IntRange -> filter.setYearRange(YEAR_UNKNOWN, YEAR_UNKNOWN)
-		}
-	}
+    override fun onChipCloseClick(chip: Chip, data: Any?) {
+        when (data) {
+            is String -> if (data == filter.snapshot().listFilter.author) {
+                filter.setAuthor(null)
+            } else {
+                filter.setQuery(null)
+            }
 
-	private fun onDataChanged(header: FilterHeaderModel) {
-		val binding = viewBinding ?: return
-		val chips = header.chips
-		if (chips.isEmpty()) {
-			binding.chipsTags.setChips(emptyList())
-			binding.root.isVisible = false
-			return
-		}
-		binding.chipsTags.setChips(header.chips)
-		binding.root.isVisible = true
-		if (binding.root.context.isAnimationsEnabled) {
-			binding.scrollView.smoothScrollTo(0, 0)
-		} else {
-			binding.scrollView.scrollTo(0, 0)
-		}
-	}
+            is ContentRating -> filter.toggleContentRating(data, false)
+            is Demographic -> filter.toggleDemographic(data, false)
+            is ContentType -> filter.toggleContentType(data, false)
+            is MangaState -> filter.toggleState(data, false)
+            is Locale -> filter.setLocale(null)
+            is Int -> filter.setYear(YEAR_UNKNOWN)
+            is IntRange -> filter.setYearRange(YEAR_UNKNOWN, YEAR_UNKNOWN)
+        }
+    }
+
+    private fun onDataChanged(header: FilterHeaderModel) {
+        val binding = viewBinding ?: return
+        val chips = header.chips
+        if (chips.isEmpty()) {
+            binding.chipsTags.setChips(emptyList())
+            binding.root.isVisible = false
+            return
+        }
+        binding.chipsTags.setChips(header.chips)
+        binding.root.isVisible = true
+        if (binding.root.context.isAnimationsEnabled) {
+            binding.scrollView.smoothScrollTo(0, 0)
+        } else {
+            binding.scrollView.scrollTo(0, 0)
+        }
+    }
 }

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

@@ -5,6 +5,7 @@ import kotlinx.coroutines.flow.combine
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.model.titleResId
 import org.koitharu.kotatsu.core.ui.widgets.ChipsView
+import org.koitharu.kotatsu.filter.data.PersistableFilter
 import org.koitharu.kotatsu.filter.ui.model.FilterHeaderModel
 import org.koitharu.kotatsu.filter.ui.model.FilterProperty
 import org.koitharu.kotatsu.parsers.model.MangaListFilter
@@ -17,143 +18,162 @@ import javax.inject.Inject
 import androidx.appcompat.R as appcompatR
 
 class FilterHeaderProducer @Inject constructor(
-	private val searchRepository: MangaSearchRepository,
+    private val searchRepository: MangaSearchRepository,
 ) {
 
-	fun observeHeader(filterCoordinator: FilterCoordinator): Flow<FilterHeaderModel> {
-		return combine(filterCoordinator.tags, filterCoordinator.observe()) { tags, snapshot ->
-			val chipList = createChipsList(
-				source = filterCoordinator.mangaSource,
-				capabilities = filterCoordinator.capabilities,
-				tagsProperty = tags,
-				snapshot = snapshot.listFilter,
-				limit = 12,
-			)
-			FilterHeaderModel(
-				chips = chipList,
-				sortOrder = snapshot.sortOrder,
-				isFilterApplied = !snapshot.listFilter.isEmpty(),
-			)
-		}
-	}
+    fun observeHeader(filterCoordinator: FilterCoordinator): Flow<FilterHeaderModel> {
+        return combine(
+            filterCoordinator.savedFilters,
+            filterCoordinator.tags,
+            filterCoordinator.observe(),
+        ) { saved, tags, snapshot ->
+            val chipList = createChipsList(
+                source = filterCoordinator.mangaSource,
+                capabilities = filterCoordinator.capabilities,
+                savedFilters = saved,
+                tagsProperty = tags,
+                snapshot = snapshot.listFilter,
+                limit = 12,
+            )
+            FilterHeaderModel(
+                chips = chipList,
+                sortOrder = snapshot.sortOrder,
+                isFilterApplied = !snapshot.listFilter.isEmpty(),
+            )
+        }
+    }
 
-	private suspend fun createChipsList(
-		source: MangaSource,
-		capabilities: MangaListFilterCapabilities,
-		tagsProperty: FilterProperty<MangaTag>,
-		snapshot: MangaListFilter,
-		limit: Int,
-	): List<ChipsView.ChipModel> {
-		val result = ArrayDeque<ChipsView.ChipModel>(limit + 3)
-		if (snapshot.query.isNullOrEmpty() || capabilities.isSearchWithFiltersSupported) {
-			val selectedTags = tagsProperty.selectedItems.toMutableSet()
-			var tags = if (selectedTags.isEmpty()) {
-				searchRepository.getTagsSuggestion("", limit, source)
-			} else {
-				searchRepository.getTagsSuggestion(selectedTags).take(limit)
-			}
-			if (tags.size < limit) {
-				tags = tags + tagsProperty.availableItems.take(limit - tags.size)
-			}
-			if (tags.isEmpty() && selectedTags.isEmpty()) {
-				return emptyList()
-			}
-			for (tag in tags) {
-				val model = ChipsView.ChipModel(
-					title = tag.title,
-					isChecked = selectedTags.remove(tag),
-					data = tag,
-				)
-				if (model.isChecked) {
-					result.addFirst(model)
-				} else {
-					result.addLast(model)
-				}
-			}
-			for (tag in selectedTags) {
-				val model = ChipsView.ChipModel(
-					title = tag.title,
-					isChecked = true,
-					data = tag,
-				)
-				result.addFirst(model)
-			}
-		}
-		snapshot.locale?.let {
-			result.addFirst(
-				ChipsView.ChipModel(
-					title = it.getDisplayName(it).toTitleCase(it),
-					icon = R.drawable.ic_language,
-					isCloseable = true,
-					data = it,
-				),
-			)
-		}
-		snapshot.types.forEach {
-			result.addFirst(
-				ChipsView.ChipModel(
-					titleResId = it.titleResId,
-					isCloseable = true,
-					data = it,
-				),
-			)
-		}
-		snapshot.demographics.forEach {
-			result.addFirst(
-				ChipsView.ChipModel(
-					titleResId = it.titleResId,
-					isCloseable = true,
-					data = it,
-				),
-			)
-		}
-		snapshot.contentRating.forEach {
-			result.addFirst(
-				ChipsView.ChipModel(
-					titleResId = it.titleResId,
-					isCloseable = true,
-					data = it,
-				),
-			)
-		}
-		snapshot.states.forEach {
-			result.addFirst(
-				ChipsView.ChipModel(
-					titleResId = it.titleResId,
-					isCloseable = true,
-					data = it,
-				),
-			)
-		}
-		if (!snapshot.query.isNullOrEmpty()) {
-			result.addFirst(
-				ChipsView.ChipModel(
-					title = snapshot.query,
-					icon = appcompatR.drawable.abc_ic_search_api_material,
-					isCloseable = true,
-					data = snapshot.query,
-				),
-			)
-		}
-		if (!snapshot.author.isNullOrEmpty()) {
-			result.addFirst(
-				ChipsView.ChipModel(
-					title = snapshot.author,
-					icon = R.drawable.ic_user,
-					isCloseable = true,
-					data = snapshot.author,
-				),
-			)
-		}
-		val hasTags = result.any { it.data is MangaTag }
-		if (hasTags) {
-			result.addFirst(moreTagsChip())
-		}
-		return result
-	}
+    private suspend fun createChipsList(
+        source: MangaSource,
+        capabilities: MangaListFilterCapabilities,
+        savedFilters: FilterProperty<PersistableFilter>,
+        tagsProperty: FilterProperty<MangaTag>,
+        snapshot: MangaListFilter,
+        limit: Int,
+    ): List<ChipsView.ChipModel> {
+        val result = ArrayDeque<ChipsView.ChipModel>(savedFilters.availableItems.size + limit + 3)
+        if (snapshot.query.isNullOrEmpty() || capabilities.isSearchWithFiltersSupported) {
+            val selectedTags = tagsProperty.selectedItems.toMutableSet()
+            var tags = if (selectedTags.isEmpty()) {
+                searchRepository.getTagsSuggestion("", limit, source)
+            } else {
+                searchRepository.getTagsSuggestion(selectedTags).take(limit)
+            }
+            if (tags.size < limit) {
+                tags = tags + tagsProperty.availableItems.take(limit - tags.size)
+            }
+            if (tags.isEmpty() && selectedTags.isEmpty()) {
+                return emptyList()
+            }
+            for (saved in savedFilters.availableItems) {
+                val model = ChipsView.ChipModel(
+                    title = saved.name,
+                    isChecked = saved in savedFilters.selectedItems,
+                    data = saved,
+                )
+                if (model.isChecked) {
+                    selectedTags.removeAll(saved.filter.tags)
+                    result.addFirst(model)
+                } else {
+                    result.addLast(model)
+                }
+            }
+            for (tag in tags) {
+                val model = ChipsView.ChipModel(
+                    title = tag.title,
+                    isChecked = selectedTags.remove(tag),
+                    data = tag,
+                )
+                if (model.isChecked) {
+                    result.addFirst(model)
+                } else {
+                    result.addLast(model)
+                }
+            }
+            for (tag in selectedTags) {
+                val model = ChipsView.ChipModel(
+                    title = tag.title,
+                    isChecked = true,
+                    data = tag,
+                )
+                result.addFirst(model)
+            }
+        }
+        snapshot.locale?.let {
+            result.addFirst(
+                ChipsView.ChipModel(
+                    title = it.getDisplayName(it).toTitleCase(it),
+                    icon = R.drawable.ic_language,
+                    isCloseable = true,
+                    data = it,
+                ),
+            )
+        }
+        snapshot.types.forEach {
+            result.addFirst(
+                ChipsView.ChipModel(
+                    titleResId = it.titleResId,
+                    isCloseable = true,
+                    data = it,
+                ),
+            )
+        }
+        snapshot.demographics.forEach {
+            result.addFirst(
+                ChipsView.ChipModel(
+                    titleResId = it.titleResId,
+                    isCloseable = true,
+                    data = it,
+                ),
+            )
+        }
+        snapshot.contentRating.forEach {
+            result.addFirst(
+                ChipsView.ChipModel(
+                    titleResId = it.titleResId,
+                    isCloseable = true,
+                    data = it,
+                ),
+            )
+        }
+        snapshot.states.forEach {
+            result.addFirst(
+                ChipsView.ChipModel(
+                    titleResId = it.titleResId,
+                    isCloseable = true,
+                    data = it,
+                ),
+            )
+        }
+        if (!snapshot.query.isNullOrEmpty()) {
+            result.addFirst(
+                ChipsView.ChipModel(
+                    title = snapshot.query,
+                    icon = appcompatR.drawable.abc_ic_search_api_material,
+                    isCloseable = true,
+                    data = snapshot.query,
+                ),
+            )
+        }
+        if (!snapshot.author.isNullOrEmpty()) {
+            result.addFirst(
+                ChipsView.ChipModel(
+                    title = snapshot.author,
+                    icon = R.drawable.ic_user,
+                    isCloseable = true,
+                    data = snapshot.author,
+                ),
+            )
+        }
+        val hasTags = result.any { it.data is MangaTag }
+        if (hasTags) {
+            result.addFirst(moreTagsChip())
+        }
+        return result
+    }
 
-	private fun moreTagsChip() = ChipsView.ChipModel(
-		titleResId = R.string.genres,
-		icon = R.drawable.ic_drawer_menu_open,
-	)
+    private fun moreTagsChip() = ChipsView.ChipModel(
+        titleResId = R.string.genres,
+        icon = R.drawable.ic_drawer_menu_open,
+    )
 }

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

@@ -1,23 +1,39 @@
 package org.koitharu.kotatsu.filter.ui.sheet
 
 import android.os.Bundle
+import android.text.InputFilter
+import android.view.Gravity
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import android.view.inputmethod.EditorInfo
 import android.widget.AdapterView
 import android.widget.ArrayAdapter
+import android.widget.LinearLayout
+import android.widget.Toast
+import androidx.appcompat.widget.PopupMenu
 import androidx.core.view.WindowInsetsCompat
 import androidx.core.view.isGone
+import androidx.core.view.isVisible
+import androidx.core.view.updateLayoutParams
 import androidx.core.view.updatePadding
 import com.google.android.material.chip.Chip
 import com.google.android.material.slider.RangeSlider
 import com.google.android.material.slider.Slider
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.combine
+import kotlinx.coroutines.flow.distinctUntilChanged
+import kotlinx.coroutines.flow.flowOn
+import kotlinx.coroutines.flow.map
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.model.titleResId
 import org.koitharu.kotatsu.core.nav.router
+import org.koitharu.kotatsu.core.ui.dialog.buildAlertDialog
+import org.koitharu.kotatsu.core.ui.dialog.setEditText
 import org.koitharu.kotatsu.core.ui.model.titleRes
 import org.koitharu.kotatsu.core.ui.sheet.BaseAdaptiveSheet
 import org.koitharu.kotatsu.core.ui.widgets.ChipsView
+import org.koitharu.kotatsu.core.util.AlphanumComparator
 import org.koitharu.kotatsu.core.util.ext.consume
 import org.koitharu.kotatsu.core.util.ext.getDisplayMessage
 import org.koitharu.kotatsu.core.util.ext.getDisplayName
@@ -26,6 +42,8 @@ import org.koitharu.kotatsu.core.util.ext.parentView
 import org.koitharu.kotatsu.core.util.ext.setValueRounded
 import org.koitharu.kotatsu.core.util.ext.setValuesRounded
 import org.koitharu.kotatsu.databinding.SheetFilterBinding
+import org.koitharu.kotatsu.filter.data.PersistableFilter
+import org.koitharu.kotatsu.filter.data.PersistableFilter.Companion.MAX_TITLE_LENGTH
 import org.koitharu.kotatsu.filter.ui.FilterCoordinator
 import org.koitharu.kotatsu.filter.ui.model.FilterProperty
 import org.koitharu.kotatsu.parsers.model.ContentRating
@@ -35,322 +53,499 @@ 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.model.YEAR_UNKNOWN
+import org.koitharu.kotatsu.parsers.util.mapToSet
 import org.koitharu.kotatsu.parsers.util.toIntUp
 import java.util.Locale
+import java.util.TreeSet
 
 class FilterSheetFragment : BaseAdaptiveSheet<SheetFilterBinding>(),
-	AdapterView.OnItemSelectedListener,
-	ChipsView.OnChipClickListener {
+    AdapterView.OnItemSelectedListener,
+    View.OnClickListener,
+    ChipsView.OnChipClickListener,
+    ChipsView.OnChipLongClickListener,
+    ChipsView.OnChipCloseClickListener {
 
-	override fun onCreateViewBinding(inflater: LayoutInflater, container: ViewGroup?): SheetFilterBinding {
-		return SheetFilterBinding.inflate(inflater, container, false)
-	}
+    override fun onCreateViewBinding(inflater: LayoutInflater, container: ViewGroup?): SheetFilterBinding {
+        return SheetFilterBinding.inflate(inflater, container, false)
+    }
 
-	override fun onViewBindingCreated(binding: SheetFilterBinding, savedInstanceState: Bundle?) {
-		super.onViewBindingCreated(binding, savedInstanceState)
-		if (dialog == null) {
-			binding.layoutBody.updatePadding(top = binding.layoutBody.paddingBottom)
-			binding.scrollView.scrollIndicators = 0
-		}
-		val filter = FilterCoordinator.require(this)
-		filter.sortOrder.observe(viewLifecycleOwner, this::onSortOrderChanged)
-		filter.locale.observe(viewLifecycleOwner, this::onLocaleChanged)
-		filter.originalLocale.observe(viewLifecycleOwner, this::onOriginalLocaleChanged)
-		filter.tags.observe(viewLifecycleOwner, this::onTagsChanged)
-		filter.tagsExcluded.observe(viewLifecycleOwner, this::onTagsExcludedChanged)
-		filter.states.observe(viewLifecycleOwner, this::onStateChanged)
-		filter.contentTypes.observe(viewLifecycleOwner, this::onContentTypesChanged)
-		filter.contentRating.observe(viewLifecycleOwner, this::onContentRatingChanged)
-		filter.demographics.observe(viewLifecycleOwner, this::onDemographicsChanged)
-		filter.year.observe(viewLifecycleOwner, this::onYearChanged)
-		filter.yearRange.observe(viewLifecycleOwner, this::onYearRangeChanged)
+    override fun onViewBindingCreated(binding: SheetFilterBinding, savedInstanceState: Bundle?) {
+        super.onViewBindingCreated(binding, savedInstanceState)
+        if (dialog == null) {
+            binding.adjustForEmbeddedLayout()
+        }
+        val filter = FilterCoordinator.require(this)
+        filter.sortOrder.observe(viewLifecycleOwner, this::onSortOrderChanged)
+        filter.locale.observe(viewLifecycleOwner, this::onLocaleChanged)
+        filter.originalLocale.observe(viewLifecycleOwner, this::onOriginalLocaleChanged)
+        filter.tags.observe(viewLifecycleOwner, this::onTagsChanged)
+        filter.tagsExcluded.observe(viewLifecycleOwner, this::onTagsExcludedChanged)
+        filter.authors.observe(viewLifecycleOwner, this::onAuthorsChanged)
+        filter.states.observe(viewLifecycleOwner, this::onStateChanged)
+        filter.contentTypes.observe(viewLifecycleOwner, this::onContentTypesChanged)
+        filter.contentRating.observe(viewLifecycleOwner, this::onContentRatingChanged)
+        filter.demographics.observe(viewLifecycleOwner, this::onDemographicsChanged)
+        filter.year.observe(viewLifecycleOwner, this::onYearChanged)
+        filter.yearRange.observe(viewLifecycleOwner, this::onYearRangeChanged)
+        filter.savedFilters.observe(viewLifecycleOwner, ::onSavedPresetsChanged)
 
-		binding.layoutGenres.setTitle(
-			if (filter.capabilities.isMultipleTagsSupported) {
-				R.string.genres
-			} else {
-				R.string.genre
-			},
-		)
-		binding.spinnerLocale.onItemSelectedListener = this
-		binding.spinnerOriginalLocale.onItemSelectedListener = this
-		binding.spinnerOrder.onItemSelectedListener = this
-		binding.chipsState.onChipClickListener = this
-		binding.chipsTypes.onChipClickListener = this
-		binding.chipsContentRating.onChipClickListener = this
-		binding.chipsDemographics.onChipClickListener = this
-		binding.chipsGenres.onChipClickListener = this
-		binding.chipsGenresExclude.onChipClickListener = this
-		binding.sliderYear.addOnChangeListener(this::onSliderValueChange)
-		binding.sliderYearsRange.addOnChangeListener(this::onRangeSliderValueChange)
-		binding.layoutGenres.setOnMoreButtonClickListener {
-			router.showTagsCatalogSheet(excludeMode = false)
-		}
-		binding.layoutGenresExclude.setOnMoreButtonClickListener {
-			router.showTagsCatalogSheet(excludeMode = true)
-		}
-	}
+        binding.layoutGenres.setTitle(
+            if (filter.capabilities.isMultipleTagsSupported) {
+                R.string.genres
+            } else {
+                R.string.genre
+            },
+        )
+        binding.spinnerLocale.onItemSelectedListener = this
+        binding.spinnerOriginalLocale.onItemSelectedListener = this
+        binding.spinnerOrder.onItemSelectedListener = this
+        binding.chipsSavedFilters.onChipClickListener = this
+        binding.chipsState.onChipClickListener = this
+        binding.chipsTypes.onChipClickListener = this
+        binding.chipsContentRating.onChipClickListener = this
+        binding.chipsDemographics.onChipClickListener = this
+        binding.chipsGenres.onChipClickListener = this
+        binding.chipsGenresExclude.onChipClickListener = this
+        binding.chipsAuthor.onChipClickListener = this
+        binding.chipsSavedFilters.onChipLongClickListener = this
+        binding.chipsSavedFilters.onChipCloseClickListener = this
+        binding.sliderYear.addOnChangeListener(this::onSliderValueChange)
+        binding.sliderYearsRange.addOnChangeListener(this::onRangeSliderValueChange)
+        binding.layoutGenres.setOnMoreButtonClickListener {
+            router.showTagsCatalogSheet(excludeMode = false)
+        }
+        binding.layoutGenresExclude.setOnMoreButtonClickListener {
+            router.showTagsCatalogSheet(excludeMode = true)
+        }
+        combine(
+            filter.observe().map { it.listFilter.isNotEmpty() }.distinctUntilChanged(),
+            filter.savedFilters.map { it.selectedItems.isEmpty() }.distinctUntilChanged(),
+            Boolean::and,
+        ).flowOn(Dispatchers.Default)
+            .observe(viewLifecycleOwner) {
+                binding.buttonSave.isEnabled = it
+            }
+        binding.buttonSave.setOnClickListener(this)
+        binding.buttonDone.setOnClickListener(this)
+    }
 
-	override fun onApplyWindowInsets(v: View, insets: WindowInsetsCompat): WindowInsetsCompat {
-		val typeMask = WindowInsetsCompat.Type.systemBars()
-		viewBinding?.scrollView?.updatePadding(
-			bottom = insets.getInsets(typeMask).bottom,
-		)
-		return insets.consume(v, typeMask, bottom = true)
-	}
+    private fun SheetFilterBinding.adjustForEmbeddedLayout() {
+        layoutBody.updatePadding(top = layoutBody.paddingBottom)
+        scrollView.scrollIndicators = 0
+        buttonDone.isVisible = false
+        this.root.layoutParams?.height = ViewGroup.LayoutParams.MATCH_PARENT
+        buttonSave.updateLayoutParams<LinearLayout.LayoutParams> {
+            weight = 0f
+            width = LinearLayout.LayoutParams.WRAP_CONTENT
+            gravity = Gravity.END or Gravity.CENTER_VERTICAL
+        }
+    }
 
-	override fun onItemSelected(parent: AdapterView<*>, view: View?, position: Int, id: Long) {
-		val filter = FilterCoordinator.require(this)
-		when (parent.id) {
-			R.id.spinner_order -> filter.setSortOrder(filter.sortOrder.value.availableItems[position])
-			R.id.spinner_locale -> filter.setLocale(filter.locale.value.availableItems[position])
-			R.id.spinner_original_locale -> filter.setOriginalLocale(filter.originalLocale.value.availableItems[position])
-		}
-	}
+    override fun onApplyWindowInsets(v: View, insets: WindowInsetsCompat): WindowInsetsCompat {
+        val typeMask = WindowInsetsCompat.Type.systemBars()
+        viewBinding?.layoutBottom?.updateLayoutParams<ViewGroup.MarginLayoutParams> {
+            bottomMargin = insets.getInsets(typeMask).bottom
+        }
+        return insets.consume(v, typeMask, bottom = true)
+    }
 
-	override fun onNothingSelected(parent: AdapterView<*>?) = Unit
+    override fun onClick(v: View) {
+        when (v.id) {
+            R.id.button_done -> dismiss()
+            R.id.button_save -> onSaveFilterClick("")
+        }
+    }
 
-	private fun onSliderValueChange(slider: Slider, value: Float, fromUser: Boolean) {
-		if (!fromUser) {
-			return
-		}
-		val intValue = value.toInt()
-		val filter = FilterCoordinator.require(this)
-		when (slider.id) {
-			R.id.slider_year -> filter.setYear(
-				if (intValue <= slider.valueFrom.toIntUp()) {
-					YEAR_UNKNOWN
-				} else {
-					intValue
-				},
-			)
-		}
-	}
+    override fun onItemSelected(parent: AdapterView<*>, view: View?, position: Int, id: Long) {
+        val filter = FilterCoordinator.require(this)
+        when (parent.id) {
+            R.id.spinner_order -> filter.setSortOrder(filter.sortOrder.value.availableItems[position])
+            R.id.spinner_locale -> filter.setLocale(filter.locale.value.availableItems[position])
+            R.id.spinner_original_locale -> filter.setOriginalLocale(filter.originalLocale.value.availableItems[position])
+        }
+    }
 
-	private fun onRangeSliderValueChange(slider: RangeSlider, value: Float, fromUser: Boolean) {
-		if (!fromUser) {
-			return
-		}
-		val filter = FilterCoordinator.require(this)
-		when (slider.id) {
-			R.id.slider_yearsRange -> filter.setYearRange(
-				valueFrom = slider.values.firstOrNull()?.let {
-					if (it <= slider.valueFrom) YEAR_UNKNOWN else it.toInt()
-				} ?: YEAR_UNKNOWN,
-				valueTo = slider.values.lastOrNull()?.let {
-					if (it >= slider.valueTo) YEAR_UNKNOWN else it.toInt()
-				} ?: YEAR_UNKNOWN,
-			)
-		}
-	}
+    override fun onNothingSelected(parent: AdapterView<*>?) = Unit
 
-	override fun onChipClick(chip: Chip, data: Any?) {
-		val filter = FilterCoordinator.require(this)
-		when (data) {
-			is MangaState -> filter.toggleState(data, !chip.isChecked)
-			is MangaTag -> if (chip.parentView?.id == R.id.chips_genresExclude) {
-				filter.toggleTagExclude(data, !chip.isChecked)
-			} else {
-				filter.toggleTag(data, !chip.isChecked)
-			}
+    private fun onSliderValueChange(slider: Slider, value: Float, fromUser: Boolean) {
+        if (!fromUser) {
+            return
+        }
+        val intValue = value.toInt()
+        val filter = FilterCoordinator.require(this)
+        when (slider.id) {
+            R.id.slider_year -> filter.setYear(
+                if (intValue <= slider.valueFrom.toIntUp()) {
+                    YEAR_UNKNOWN
+                } else {
+                    intValue
+                },
+            )
+        }
+    }
 
-			is ContentType -> filter.toggleContentType(data, !chip.isChecked)
-			is ContentRating -> filter.toggleContentRating(data, !chip.isChecked)
-			is Demographic -> filter.toggleDemographic(data, !chip.isChecked)
-			null -> router.showTagsCatalogSheet(excludeMode = chip.parentView?.id == R.id.chips_genresExclude)
-		}
-	}
+    private fun onRangeSliderValueChange(slider: RangeSlider, value: Float, fromUser: Boolean) {
+        if (!fromUser) {
+            return
+        }
+        val filter = FilterCoordinator.require(this)
+        when (slider.id) {
+            R.id.slider_yearsRange -> filter.setYearRange(
+                valueFrom = slider.values.firstOrNull()?.let {
+                    if (it <= slider.valueFrom) YEAR_UNKNOWN else it.toInt()
+                } ?: YEAR_UNKNOWN,
+                valueTo = slider.values.lastOrNull()?.let {
+                    if (it >= slider.valueTo) YEAR_UNKNOWN else it.toInt()
+                } ?: YEAR_UNKNOWN,
+            )
+        }
+    }
 
-	private fun onSortOrderChanged(value: FilterProperty<SortOrder>) {
-		val b = viewBinding ?: return
-		b.layoutOrder.isGone = value.isEmpty()
-		if (value.isEmpty()) {
-			return
-		}
-		val selected = value.selectedItems.single()
-		b.spinnerOrder.adapter = ArrayAdapter(
-			b.spinnerOrder.context,
-			android.R.layout.simple_spinner_dropdown_item,
-			android.R.id.text1,
-			value.availableItems.map { b.spinnerOrder.context.getString(it.titleRes) },
-		)
-		val selectedIndex = value.availableItems.indexOf(selected)
-		if (selectedIndex >= 0) {
-			b.spinnerOrder.setSelection(selectedIndex, false)
-		}
-	}
+    override fun onChipClick(chip: Chip, data: Any?) {
+        val filter = FilterCoordinator.require(this)
+        when (data) {
+            is MangaState -> filter.toggleState(data, !chip.isChecked)
+            is MangaTag -> if (chip.parentView?.id == R.id.chips_genresExclude) {
+                filter.toggleTagExclude(data, !chip.isChecked)
+            } else {
+                filter.toggleTag(data, !chip.isChecked)
+            }
 
-	private fun onLocaleChanged(value: FilterProperty<Locale?>) {
-		val b = viewBinding ?: return
-		b.layoutLocale.isGone = value.isEmpty()
-		if (value.isEmpty()) {
-			return
-		}
-		val selected = value.selectedItems.singleOrNull()
-		b.spinnerLocale.adapter = ArrayAdapter(
-			b.spinnerLocale.context,
-			android.R.layout.simple_spinner_dropdown_item,
-			android.R.id.text1,
-			value.availableItems.map { it.getDisplayName(b.spinnerLocale.context) },
-		)
-		val selectedIndex = value.availableItems.indexOf(selected)
-		if (selectedIndex >= 0) {
-			b.spinnerLocale.setSelection(selectedIndex, false)
-		}
-	}
+            is ContentType -> filter.toggleContentType(data, !chip.isChecked)
+            is ContentRating -> filter.toggleContentRating(data, !chip.isChecked)
+            is Demographic -> filter.toggleDemographic(data, !chip.isChecked)
+            is PersistableFilter -> filter.setAdjusted(data.filter)
+            is String -> if (chip.isChecked) {
+                filter.setAuthor(null)
+            } else {
+                filter.setAuthor(data)
+            }
+            null -> router.showTagsCatalogSheet(excludeMode = chip.parentView?.id == R.id.chips_genresExclude)
+        }
+    }
 
-	private fun onOriginalLocaleChanged(value: FilterProperty<Locale?>) {
-		val b = viewBinding ?: return
-		b.layoutOriginalLocale.isGone = value.isEmpty()
-		if (value.isEmpty()) {
-			return
-		}
-		val selected = value.selectedItems.singleOrNull()
-		b.spinnerOriginalLocale.adapter = ArrayAdapter(
-			b.spinnerOriginalLocale.context,
-			android.R.layout.simple_spinner_dropdown_item,
-			android.R.id.text1,
-			value.availableItems.map { it.getDisplayName(b.spinnerOriginalLocale.context) },
-		)
-		val selectedIndex = value.availableItems.indexOf(selected)
-		if (selectedIndex >= 0) {
-			b.spinnerOriginalLocale.setSelection(selectedIndex, false)
-		}
-	}
+    override fun onChipLongClick(chip: Chip, data: Any?): Boolean {
+        return when (data) {
+            is PersistableFilter -> {
+                showSavedFilterMenu(chip, data)
+                true
+            }
 
-	private fun onTagsChanged(value: FilterProperty<MangaTag>) {
-		val b = viewBinding ?: return
-		b.layoutGenres.isGone = value.isEmptyAndSuccess()
-		b.layoutGenres.setError(value.error?.getDisplayMessage(resources))
-		if (value.isEmpty()) {
-			return
-		}
-		val chips = value.availableItems.map { tag ->
-			ChipsView.ChipModel(
-				title = tag.title,
-				isChecked = tag in value.selectedItems,
-				data = tag,
-			)
-		}
-		b.chipsGenres.setChips(chips)
-	}
+            else -> false
+        }
+    }
 
-	private fun onTagsExcludedChanged(value: FilterProperty<MangaTag>) {
-		val b = viewBinding ?: return
-		b.layoutGenresExclude.isGone = value.isEmpty()
-		if (value.isEmpty()) {
-			return
-		}
-		val chips = value.availableItems.map { tag ->
-			ChipsView.ChipModel(
-				title = tag.title,
-				isChecked = tag in value.selectedItems,
-				data = tag,
-			)
-		}
-		b.chipsGenresExclude.setChips(chips)
-	}
+    override fun onChipCloseClick(chip: Chip, data: Any?) {
+        when (data) {
+            is PersistableFilter -> {
+                showSavedFilterMenu(chip, data)
+            }
+        }
+    }
 
-	private fun onStateChanged(value: FilterProperty<MangaState>) {
-		val b = viewBinding ?: return
-		b.layoutState.isGone = value.isEmpty()
-		if (value.isEmpty()) {
-			return
-		}
-		val chips = value.availableItems.map { state ->
-			ChipsView.ChipModel(
-				title = getString(state.titleResId),
-				isChecked = state in value.selectedItems,
-				data = state,
-			)
-		}
-		b.chipsState.setChips(chips)
-	}
+    private fun onSortOrderChanged(value: FilterProperty<SortOrder>) {
+        val b = viewBinding ?: return
+        b.layoutOrder.isGone = value.isEmpty()
+        if (value.isEmpty()) {
+            return
+        }
+        val selected = value.selectedItems.single()
+        b.spinnerOrder.adapter = ArrayAdapter(
+            b.spinnerOrder.context,
+            android.R.layout.simple_spinner_dropdown_item,
+            android.R.id.text1,
+            value.availableItems.map { b.spinnerOrder.context.getString(it.titleRes) },
+        )
+        val selectedIndex = value.availableItems.indexOf(selected)
+        if (selectedIndex >= 0) {
+            b.spinnerOrder.setSelection(selectedIndex, false)
+        }
+    }
 
-	private fun onContentTypesChanged(value: FilterProperty<ContentType>) {
-		val b = viewBinding ?: return
-		b.layoutTypes.isGone = value.isEmpty()
-		if (value.isEmpty()) {
-			return
-		}
-		val chips = value.availableItems.map { type ->
-			ChipsView.ChipModel(
-				title = getString(type.titleResId),
-				isChecked = type in value.selectedItems,
-				data = type,
-			)
-		}
-		b.chipsTypes.setChips(chips)
-	}
+    private fun onLocaleChanged(value: FilterProperty<Locale?>) {
+        val b = viewBinding ?: return
+        b.layoutLocale.isGone = value.isEmpty()
+        if (value.isEmpty()) {
+            return
+        }
+        val selected = value.selectedItems.singleOrNull()
+        b.spinnerLocale.adapter = ArrayAdapter(
+            b.spinnerLocale.context,
+            android.R.layout.simple_spinner_dropdown_item,
+            android.R.id.text1,
+            value.availableItems.map { it.getDisplayName(b.spinnerLocale.context) },
+        )
+        val selectedIndex = value.availableItems.indexOf(selected)
+        if (selectedIndex >= 0) {
+            b.spinnerLocale.setSelection(selectedIndex, false)
+        }
+    }
 
-	private fun onContentRatingChanged(value: FilterProperty<ContentRating>) {
-		val b = viewBinding ?: return
-		b.layoutContentRating.isGone = value.isEmpty()
-		if (value.isEmpty()) {
-			return
-		}
-		val chips = value.availableItems.map { contentRating ->
-			ChipsView.ChipModel(
-				title = getString(contentRating.titleResId),
-				isChecked = contentRating in value.selectedItems,
-				data = contentRating,
-			)
-		}
-		b.chipsContentRating.setChips(chips)
-	}
+    private fun onOriginalLocaleChanged(value: FilterProperty<Locale?>) {
+        val b = viewBinding ?: return
+        b.layoutOriginalLocale.isGone = value.isEmpty()
+        if (value.isEmpty()) {
+            return
+        }
+        val selected = value.selectedItems.singleOrNull()
+        b.spinnerOriginalLocale.adapter = ArrayAdapter(
+            b.spinnerOriginalLocale.context,
+            android.R.layout.simple_spinner_dropdown_item,
+            android.R.id.text1,
+            value.availableItems.map { it.getDisplayName(b.spinnerOriginalLocale.context) },
+        )
+        val selectedIndex = value.availableItems.indexOf(selected)
+        if (selectedIndex >= 0) {
+            b.spinnerOriginalLocale.setSelection(selectedIndex, false)
+        }
+    }
 
-	private fun onDemographicsChanged(value: FilterProperty<Demographic>) {
-		val b = viewBinding ?: return
-		b.layoutDemographics.isGone = value.isEmpty()
-		if (value.isEmpty()) {
-			return
-		}
-		val chips = value.availableItems.map { demographic ->
-			ChipsView.ChipModel(
-				title = getString(demographic.titleResId),
-				isChecked = demographic in value.selectedItems,
-				data = demographic,
-			)
-		}
-		b.chipsDemographics.setChips(chips)
-	}
+    private fun onTagsChanged(value: FilterProperty<MangaTag>) {
+        val b = viewBinding ?: return
+        b.layoutGenres.isGone = value.isEmptyAndSuccess()
+        b.layoutGenres.setError(value.error?.getDisplayMessage(resources))
+        if (value.isEmpty()) {
+            return
+        }
+        val chips = value.availableItems.map { tag ->
+            ChipsView.ChipModel(
+                title = tag.title,
+                isChecked = tag in value.selectedItems,
+                data = tag,
+            )
+        }
+        b.chipsGenres.setChips(chips)
+    }
 
-	private fun onYearChanged(value: FilterProperty<Int>) {
-		val b = viewBinding ?: return
-		b.layoutYear.isGone = value.isEmpty()
-		if (value.isEmpty()) {
-			return
-		}
-		val currentValue = value.selectedItems.singleOrNull() ?: YEAR_UNKNOWN
-		b.layoutYear.setValueText(
-			if (currentValue == YEAR_UNKNOWN) {
-				getString(R.string.any)
-			} else {
-				currentValue.toString()
-			},
-		)
-		b.sliderYear.valueFrom = value.availableItems.first().toFloat()
-		b.sliderYear.valueTo = value.availableItems.last().toFloat()
-		b.sliderYear.setValueRounded(currentValue.toFloat())
-	}
+    private fun onTagsExcludedChanged(value: FilterProperty<MangaTag>) {
+        val b = viewBinding ?: return
+        b.layoutGenresExclude.isGone = value.isEmpty()
+        if (value.isEmpty()) {
+            return
+        }
+        val chips = value.availableItems.map { tag ->
+            ChipsView.ChipModel(
+                title = tag.title,
+                isChecked = tag in value.selectedItems,
+                data = tag,
+            )
+        }
+        b.chipsGenresExclude.setChips(chips)
+    }
 
-	private fun onYearRangeChanged(value: FilterProperty<Int>) {
-		val b = viewBinding ?: return
-		b.layoutYearsRange.isGone = value.isEmpty()
-		if (value.isEmpty()) {
-			return
-		}
-		b.sliderYearsRange.valueFrom = value.availableItems.first().toFloat()
-		b.sliderYearsRange.valueTo = value.availableItems.last().toFloat()
-		val currentValueFrom = value.selectedItems.firstOrNull()?.toFloat() ?: b.sliderYearsRange.valueFrom
-		val currentValueTo = value.selectedItems.lastOrNull()?.toFloat() ?: b.sliderYearsRange.valueTo
-		b.layoutYearsRange.setValueText(
-			getString(
-				R.string.memory_usage_pattern,
-				currentValueFrom.toInt().toString(),
-				currentValueTo.toInt().toString(),
-			),
-		)
-		b.sliderYearsRange.setValuesRounded(currentValueFrom, currentValueTo)
-	}
+    private fun onAuthorsChanged(value: FilterProperty<String>) {
+        val b = viewBinding ?: return
+        b.layoutAuthor.isGone = value.isEmpty()
+        if (value.isEmpty()) {
+            return
+        }
+        val chips = value.availableItems.map { author ->
+            ChipsView.ChipModel(
+                title = author,
+                isChecked = author in value.selectedItems,
+                data = author,
+            )
+        }
+        b.chipsAuthor.setChips(chips)
+    }
+
+    private fun onStateChanged(value: FilterProperty<MangaState>) {
+        val b = viewBinding ?: return
+        b.layoutState.isGone = value.isEmpty()
+        if (value.isEmpty()) {
+            return
+        }
+        val chips = value.availableItems.map { state ->
+            ChipsView.ChipModel(
+                title = getString(state.titleResId),
+                isChecked = state in value.selectedItems,
+                data = state,
+            )
+        }
+        b.chipsState.setChips(chips)
+    }
+
+    private fun onContentTypesChanged(value: FilterProperty<ContentType>) {
+        val b = viewBinding ?: return
+        b.layoutTypes.isGone = value.isEmpty()
+        if (value.isEmpty()) {
+            return
+        }
+        val chips = value.availableItems.map { type ->
+            ChipsView.ChipModel(
+                title = getString(type.titleResId),
+                isChecked = type in value.selectedItems,
+                data = type,
+            )
+        }
+        b.chipsTypes.setChips(chips)
+    }
+
+    private fun onContentRatingChanged(value: FilterProperty<ContentRating>) {
+        val b = viewBinding ?: return
+        b.layoutContentRating.isGone = value.isEmpty()
+        if (value.isEmpty()) {
+            return
+        }
+        val chips = value.availableItems.map { contentRating ->
+            ChipsView.ChipModel(
+                title = getString(contentRating.titleResId),
+                isChecked = contentRating in value.selectedItems,
+                data = contentRating,
+            )
+        }
+        b.chipsContentRating.setChips(chips)
+    }
+
+    private fun onDemographicsChanged(value: FilterProperty<Demographic>) {
+        val b = viewBinding ?: return
+        b.layoutDemographics.isGone = value.isEmpty()
+        if (value.isEmpty()) {
+            return
+        }
+        val chips = value.availableItems.map { demographic ->
+            ChipsView.ChipModel(
+                title = getString(demographic.titleResId),
+                isChecked = demographic in value.selectedItems,
+                data = demographic,
+            )
+        }
+        b.chipsDemographics.setChips(chips)
+    }
+
+    private fun onYearChanged(value: FilterProperty<Int>) {
+        val b = viewBinding ?: return
+        b.layoutYear.isGone = value.isEmpty()
+        if (value.isEmpty()) {
+            return
+        }
+        val currentValue = value.selectedItems.singleOrNull() ?: YEAR_UNKNOWN
+        b.layoutYear.setValueText(
+            if (currentValue == YEAR_UNKNOWN) {
+                getString(R.string.any)
+            } else {
+                currentValue.toString()
+            },
+        )
+        b.sliderYear.valueFrom = value.availableItems.first().toFloat()
+        b.sliderYear.valueTo = value.availableItems.last().toFloat()
+        b.sliderYear.setValueRounded(currentValue.toFloat())
+    }
+
+    private fun onYearRangeChanged(value: FilterProperty<Int>) {
+        val b = viewBinding ?: return
+        b.layoutYearsRange.isGone = value.isEmpty()
+        if (value.isEmpty()) {
+            return
+        }
+        b.sliderYearsRange.valueFrom = value.availableItems.first().toFloat()
+        b.sliderYearsRange.valueTo = value.availableItems.last().toFloat()
+        val currentValueFrom = value.selectedItems.firstOrNull()?.toFloat() ?: b.sliderYearsRange.valueFrom
+        val currentValueTo = value.selectedItems.lastOrNull()?.toFloat() ?: b.sliderYearsRange.valueTo
+        b.layoutYearsRange.setValueText(
+            getString(
+                R.string.memory_usage_pattern,
+                currentValueFrom.toInt().toString(),
+                currentValueTo.toInt().toString(),
+            ),
+        )
+        b.sliderYearsRange.setValuesRounded(currentValueFrom, currentValueTo)
+    }
+
+    private fun onSavedPresetsChanged(value: FilterProperty<PersistableFilter>) {
+        val b = viewBinding ?: return
+        b.layoutSavedFilters.isGone = value.isEmpty()
+        if (value.isEmpty()) {
+            return
+        }
+        val chips = value.availableItems.map { f ->
+            ChipsView.ChipModel(
+                title = f.name,
+                isChecked = f in value.selectedItems,
+                data = f,
+                isDropdown = true,
+            )
+        }
+        b.chipsSavedFilters.setChips(chips)
+    }
+
+    private fun showSavedFilterMenu(anchor: View, preset: PersistableFilter) {
+        val menu = PopupMenu(context ?: return, anchor)
+        val filter = FilterCoordinator.require(this)
+        menu.inflate(R.menu.popup_saved_filter)
+        menu.setOnMenuItemClickListener { menuItem ->
+            when (menuItem.itemId) {
+                R.id.action_delete -> filter.deleteSavedFilter(preset.id)
+                R.id.action_rename -> onRenameFilterClick(preset)
+            }
+            true
+        }
+        menu.show()
+    }
+
+    private fun onSaveFilterClick(name: String) {
+        val filter = FilterCoordinator.require(this)
+        val existingNames = filter.savedFilters.value.availableItems
+            .mapTo(TreeSet(AlphanumComparator()), PersistableFilter::name)
+        buildAlertDialog(context ?: return) {
+            val input = setEditText(
+                entries = existingNames.toList(),
+                inputType = EditorInfo.TYPE_CLASS_TEXT or EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES,
+                singleLine = true,
+            )
+            input.setHint(R.string.enter_name)
+            input.setText(name)
+            input.filters += InputFilter.LengthFilter(MAX_TITLE_LENGTH)
+            setTitle(R.string.save_filter)
+            setPositiveButton(R.string.save) { _, _ ->
+                val text = input.text?.toString()?.trim()
+                if (text.isNullOrEmpty()) {
+                    Toast.makeText(context, R.string.invalid_value_message, Toast.LENGTH_SHORT).show()
+                    onSaveFilterClick("")
+                } else if (text in existingNames) {
+                    askForFilterOverwrite(filter, text)
+                } else {
+                    filter.saveCurrentFilter(text)
+                }
+            }
+            setNegativeButton(android.R.string.cancel, null)
+        }.show()
+    }
+
+    private fun onRenameFilterClick(preset: PersistableFilter) {
+        val filter = FilterCoordinator.require(this)
+        val existingNames = filter.savedFilters.value.availableItems.mapToSet { it.name }
+        buildAlertDialog(context ?: return) {
+            val input = setEditText(
+                inputType = EditorInfo.TYPE_CLASS_TEXT or EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES,
+                singleLine = true,
+            )
+            input.filters += InputFilter.LengthFilter(MAX_TITLE_LENGTH)
+            input.setHint(R.string.enter_name)
+            input.setText(preset.name)
+            setTitle(R.string.rename)
+            setPositiveButton(R.string.save) { _, _ ->
+                val text = input.text?.toString()?.trim()
+                if (text.isNullOrEmpty() || text in existingNames) {
+                    Toast.makeText(context, R.string.invalid_value_message, Toast.LENGTH_SHORT).show()
+                } else {
+                    filter.renameSavedFilter(preset.id, text)
+                }
+            }
+            setNegativeButton(android.R.string.cancel, null)
+        }.show()
+    }
+
+    private fun askForFilterOverwrite(filter: FilterCoordinator, name: String) {
+        buildAlertDialog(context ?: return) {
+            setTitle(R.string.save_filter)
+            setMessage(getString(R.string.filter_overwrite_confirm, name))
+            setPositiveButton(R.string.overwrite) { _, _ ->
+                filter.saveCurrentFilter(name)
+            }
+            setNegativeButton(android.R.string.cancel) { _, _ ->
+                onSaveFilterClick(name)
+            }
+        }.show()
+    }
 }

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

@@ -13,11 +13,11 @@ import androidx.annotation.WorkerThread
 import androidx.core.content.ContextCompat
 import androidx.core.net.toFile
 import dagger.Reusable
-import dagger.hilt.android.qualifiers.ApplicationContext
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.runInterruptible
 import kotlinx.coroutines.withContext
 import okhttp3.Cache
+import org.koitharu.kotatsu.core.LocalizedAppContext
 import org.koitharu.kotatsu.core.exceptions.NonFileUriException
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.util.ext.computeSize
@@ -39,8 +39,8 @@ private const val CACHE_SIZE_MAX: Long = 250 * 1024 * 1024 // 250MB
 
 @Reusable
 class LocalStorageManager @Inject constructor(
-	@ApplicationContext private val context: Context,
-	private val settings: AppSettings,
+    @LocalizedAppContext private val context: Context,
+    private val settings: AppSettings,
 ) {
 
 	val contentResolver: ContentResolver

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

@@ -1,6 +1,8 @@
 package org.koitharu.kotatsu.main.ui
 
 import android.Manifest
+import android.app.BackgroundServiceStartNotAllowedException
+import android.app.ServiceStartNotAllowedException
 import android.content.Intent
 import android.content.pm.PackageManager.PERMISSION_GRANTED
 import android.os.Build
@@ -58,6 +60,7 @@ import org.koitharu.kotatsu.core.util.ext.consume
 import org.koitharu.kotatsu.core.util.ext.end
 import org.koitharu.kotatsu.core.util.ext.observe
 import org.koitharu.kotatsu.core.util.ext.observeEvent
+import org.koitharu.kotatsu.core.util.ext.printStackTraceDebug
 import org.koitharu.kotatsu.core.util.ext.start
 import org.koitharu.kotatsu.databinding.ActivityMainBinding
 import org.koitharu.kotatsu.details.service.MangaPrefetchService
@@ -288,7 +291,7 @@ class MainActivity : BaseActivity<ActivityMainBinding>(), AppBarOwner, BottomNav
 		adjustFabVisibility(isResumeEnabled = isEnabled)
 	}
 
-	private fun onFirstStart() {
+	private fun onFirstStart() = try {
 		lifecycleScope.launch(Dispatchers.Main) { // not a default `Main.immediate` dispatcher
 			withContext(Dispatchers.Default) {
 				LocalStorageCleanupWorker.enqueue(applicationContext)
@@ -303,6 +306,8 @@ class MainActivity : BaseActivity<ActivityMainBinding>(), AppBarOwner, BottomNav
 				}
 			}
 		}
+	} catch (e: IllegalStateException) {
+		e.printStackTraceDebug()
 	}
 
 	private fun adjustAppbar(topFragment: Fragment) {

app/src/main/kotlin/org/koitharu/kotatsu/main/ui/welcome/WelcomeSheet.kt

@@ -51,6 +51,7 @@ class WelcomeSheet : BaseAdaptiveSheet<SheetWelcomeBinding>(), ChipsView.OnChipC
 		binding.chipsType.onChipClickListener = this
 		binding.chipBackup.setOnClickListener(this)
 		binding.chipSync.setOnClickListener(this)
+		binding.chipDirectories.setOnClickListener(this)
 
 		viewModel.locales.observe(viewLifecycleOwner, ::onLocalesChanged)
 		viewModel.types.observe(viewLifecycleOwner, ::onTypesChanged)
@@ -86,6 +87,10 @@ class WelcomeSheet : BaseAdaptiveSheet<SheetWelcomeBinding>(), ChipsView.OnChipC
 				val accountType = getString(R.string.account_type_sync)
 				am.addAccount(accountType, accountType, null, null, requireActivity(), null, null)
 			}
+
+            R.id.chip_directories -> {
+                router.openDirectoriesSettings()
+            }
 		}
 	}
 

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

@@ -3,6 +3,7 @@ package org.koitharu.kotatsu.reader.ui
 import android.app.assist.AssistContent
 import android.content.DialogInterface
 import android.content.Intent
+import android.content.res.Configuration
 import android.os.Bundle
 import android.view.Gravity
 import android.view.KeyEvent
@@ -24,6 +25,8 @@ import androidx.transition.Fade
 import androidx.transition.Slide
 import androidx.transition.TransitionManager
 import androidx.transition.TransitionSet
+import androidx.window.layout.FoldingFeature
+import androidx.window.layout.WindowInfoTracker
 import com.google.android.material.snackbar.Snackbar
 import dagger.hilt.android.AndroidEntryPoint
 import kotlinx.coroutines.Dispatchers
@@ -31,7 +34,9 @@ import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.combine
 import kotlinx.coroutines.flow.distinctUntilChanged
 import kotlinx.coroutines.flow.flowOn
+import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.onEach
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import org.koitharu.kotatsu.R
@@ -70,479 +75,519 @@ import androidx.appcompat.R as appcompatR
 
 @AndroidEntryPoint
 class ReaderActivity :
-	BaseFullscreenActivity<ActivityReaderBinding>(),
-	TapGridDispatcher.OnGridTouchListener,
-	ReaderConfigSheet.Callback,
-	ReaderControlDelegate.OnInteractionListener,
-	ReaderNavigationCallback,
-	IdlingDetector.Callback,
-	ZoomControl.ZoomControlListener,
-	View.OnClickListener,
-	ScrollTimerControlView.OnVisibilityChangeListener {
+    BaseFullscreenActivity<ActivityReaderBinding>(),
+    TapGridDispatcher.OnGridTouchListener,
+    ReaderConfigSheet.Callback,
+    ReaderControlDelegate.OnInteractionListener,
+    ReaderNavigationCallback,
+    IdlingDetector.Callback,
+    ZoomControl.ZoomControlListener,
+    View.OnClickListener,
+    ScrollTimerControlView.OnVisibilityChangeListener {
 
-	@Inject
-	lateinit var settings: AppSettings
+    @Inject
+    lateinit var settings: AppSettings
 
-	@Inject
-	lateinit var tapGridSettings: TapGridSettings
+    @Inject
+    lateinit var tapGridSettings: TapGridSettings
 
-	@Inject
-	lateinit var pageSaveHelperFactory: PageSaveHelper.Factory
+    @Inject
+    lateinit var pageSaveHelperFactory: PageSaveHelper.Factory
 
-	@Inject
-	lateinit var scrollTimerFactory: ScrollTimer.Factory
+    @Inject
+    lateinit var scrollTimerFactory: ScrollTimer.Factory
 
-	@Inject
-	lateinit var screenOrientationHelper: ScreenOrientationHelper
+    @Inject
+    lateinit var screenOrientationHelper: ScreenOrientationHelper
 
-	private val idlingDetector = IdlingDetector(TimeUnit.SECONDS.toMillis(10), this)
+    private val idlingDetector = IdlingDetector(TimeUnit.SECONDS.toMillis(10), this)
 
-	private val viewModel: ReaderViewModel by viewModels()
+    private val viewModel: ReaderViewModel by viewModels()
 
-	override val readerMode: ReaderMode?
-		get() = readerManager.currentMode
+    override val readerMode: ReaderMode?
+        get() = readerManager.currentMode
 
-	private lateinit var scrollTimer: ScrollTimer
-	private lateinit var pageSaveHelper: PageSaveHelper
-	private lateinit var touchHelper: TapGridDispatcher
-	private lateinit var controlDelegate: ReaderControlDelegate
-	private var gestureInsets: Insets = Insets.NONE
-	private lateinit var readerManager: ReaderManager
-	private val hideUiRunnable = Runnable { setUiIsVisible(false) }
+    private lateinit var scrollTimer: ScrollTimer
+    private lateinit var pageSaveHelper: PageSaveHelper
+    private lateinit var touchHelper: TapGridDispatcher
+    private lateinit var controlDelegate: ReaderControlDelegate
+    private var gestureInsets: Insets = Insets.NONE
+    private lateinit var readerManager: ReaderManager
+    private val hideUiRunnable = Runnable { setUiIsVisible(false) }
 
-	override fun onCreate(savedInstanceState: Bundle?) {
-		super.onCreate(savedInstanceState)
-		setContentView(ActivityReaderBinding.inflate(layoutInflater))
-		readerManager = ReaderManager(supportFragmentManager, viewBinding.container, settings)
-		setDisplayHomeAsUp(isEnabled = true, showUpAsClose = false)
-		touchHelper = TapGridDispatcher(viewBinding.root, this)
-		scrollTimer = scrollTimerFactory.create(resources, this, this)
-		pageSaveHelper = pageSaveHelperFactory.create(this)
-		controlDelegate = ReaderControlDelegate(resources, settings, tapGridSettings, this)
-		viewBinding.zoomControl.listener = this
-		viewBinding.actionsView.listener = this
-		viewBinding.buttonTimer?.setOnClickListener(this)
-		idlingDetector.bindToLifecycle(this)
-		screenOrientationHelper.applySettings()
-		viewModel.isBookmarkAdded.observe(this) { viewBinding.actionsView.isBookmarkAdded = it }
-		scrollTimer.isActive.observe(this) {
-			updateScrollTimerButton()
-			viewBinding.actionsView.setTimerActive(it)
-		}
-		viewBinding.timerControl.onVisibilityChangeListener = this
-		viewBinding.timerControl.attach(scrollTimer, this)
-		if (resources.getBoolean(R.bool.is_tablet)) {
-			viewBinding.timerControl.updateLayoutParams<CoordinatorLayout.LayoutParams> {
-				topMargin = marginEnd + getThemeDimensionPixelOffset(appcompatR.attr.actionBarSize)
-			}
-		}
+    // Tracks whether the foldable device is in an unfolded state (half-opened or flat)
+    private var isFoldUnfolded: Boolean = false
 
-		viewModel.onLoadingError.observeEvent(
-			this,
-			DialogErrorObserver(
-				host = viewBinding.container,
-				fragment = null,
-				resolver = exceptionResolver,
-				onResolved = { isResolved ->
-					if (isResolved) {
-						viewModel.reload()
-					} else if (viewModel.content.value.pages.isEmpty()) {
-						dispatchNavigateUp()
-					}
-				},
-			),
-		)
-		viewModel.onError.observeEvent(
-			this,
-			SnackbarErrorObserver(
-				host = viewBinding.container,
-				fragment = null,
-				resolver = exceptionResolver,
-				onResolved = null,
-			),
-		)
-		viewModel.readerMode.observe(this, Lifecycle.State.STARTED, this::onInitReader)
-		viewModel.onPageSaved.observeEvent(this, PagesSavedObserver(viewBinding.container))
-		viewModel.uiState.zipWithPrevious().observe(this, this::onUiStateChanged)
-		combine(
-			viewModel.isLoading,
-			viewModel.content.map { it.pages.isNotEmpty() }.distinctUntilChanged(),
-			::Pair,
-		).flowOn(Dispatchers.Default)
-			.observe(this, this::onLoadingStateChanged)
-		viewModel.isKeepScreenOnEnabled.observe(this, this::setKeepScreenOn)
-		viewModel.isInfoBarTransparent.observe(this) { viewBinding.infoBar.drawBackground = !it }
-		viewModel.isInfoBarEnabled.observe(this, ::onReaderBarChanged)
-		viewModel.isBookmarkAdded.observe(this, MenuInvalidator(this))
-		viewModel.onAskNsfwIncognito.observeEvent(this) { askForIncognitoMode() }
-		viewModel.onShowToast.observeEvent(this) { msgId ->
-			Snackbar.make(viewBinding.container, msgId, Snackbar.LENGTH_SHORT)
-				.setAnchorView(viewBinding.toolbarDocked)
-				.show()
-		}
-		viewModel.readerSettingsProducer.observe(this) {
-			viewBinding.infoBar.applyColorScheme(isBlackOnWhite = it.background.isLight(this))
-		}
-		viewModel.isZoomControlsEnabled.observe(this) {
-			viewBinding.zoomControl.isVisible = it
-		}
-		addMenuProvider(ReaderMenuProvider(viewModel))
-	}
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(ActivityReaderBinding.inflate(layoutInflater))
+        readerManager = ReaderManager(supportFragmentManager, viewBinding.container, settings)
+        setDisplayHomeAsUp(isEnabled = true, showUpAsClose = false)
+        touchHelper = TapGridDispatcher(viewBinding.root, this)
+        scrollTimer = scrollTimerFactory.create(resources, this, this)
+        pageSaveHelper = pageSaveHelperFactory.create(this)
+        controlDelegate = ReaderControlDelegate(resources, settings, tapGridSettings, this)
+        viewBinding.zoomControl.listener = this
+        viewBinding.actionsView.listener = this
+        viewBinding.buttonTimer?.setOnClickListener(this)
+        idlingDetector.bindToLifecycle(this)
+        screenOrientationHelper.applySettings()
+        viewModel.isBookmarkAdded.observe(this) { viewBinding.actionsView.isBookmarkAdded = it }
+        scrollTimer.isActive.observe(this) {
+            updateScrollTimerButton()
+            viewBinding.actionsView.setTimerActive(it)
+        }
+        viewBinding.timerControl.onVisibilityChangeListener = this
+        viewBinding.timerControl.attach(scrollTimer, this)
+        if (resources.getBoolean(R.bool.is_tablet)) {
+            viewBinding.timerControl.updateLayoutParams<CoordinatorLayout.LayoutParams> {
+                topMargin = marginEnd + getThemeDimensionPixelOffset(appcompatR.attr.actionBarSize)
+            }
+        }
 
-	override fun getParentActivityIntent(): Intent? {
-		val manga = viewModel.getMangaOrNull() ?: return null
-		return AppRouter.detailsIntent(this, manga)
-	}
+        viewModel.onLoadingError.observeEvent(
+            this,
+            DialogErrorObserver(
+                host = viewBinding.container,
+                fragment = null,
+                resolver = exceptionResolver,
+                onResolved = { isResolved ->
+                    if (isResolved) {
+                        viewModel.reload()
+                    } else if (viewModel.content.value.pages.isEmpty()) {
+                        dispatchNavigateUp()
+                    }
+                },
+            ),
+        )
+        viewModel.onError.observeEvent(
+            this,
+            SnackbarErrorObserver(
+                host = viewBinding.container,
+                fragment = null,
+                resolver = exceptionResolver,
+                onResolved = null,
+            ),
+        )
+        viewModel.readerMode.observe(this, Lifecycle.State.STARTED, this::onInitReader)
+        viewModel.onPageSaved.observeEvent(this, PagesSavedObserver(viewBinding.container))
+        viewModel.uiState.zipWithPrevious().observe(this, this::onUiStateChanged)
+        combine(
+            viewModel.isLoading,
+            viewModel.content.map { it.pages.isNotEmpty() }.distinctUntilChanged(),
+            ::Pair,
+        ).flowOn(Dispatchers.Default)
+            .observe(this, this::onLoadingStateChanged)
+        viewModel.isKeepScreenOnEnabled.observe(this, this::setKeepScreenOn)
+        viewModel.isInfoBarTransparent.observe(this) { viewBinding.infoBar.drawBackground = !it }
+        viewModel.isInfoBarEnabled.observe(this, ::onReaderBarChanged)
+        viewModel.isBookmarkAdded.observe(this, MenuInvalidator(this))
+        viewModel.onAskNsfwIncognito.observeEvent(this) { askForIncognitoMode() }
+        viewModel.onShowToast.observeEvent(this) { msgId ->
+            Snackbar.make(viewBinding.container, msgId, Snackbar.LENGTH_SHORT)
+                .setAnchorView(viewBinding.toolbarDocked)
+                .show()
+        }
+        viewModel.readerSettingsProducer.observe(this) {
+            viewBinding.infoBar.applyColorScheme(isBlackOnWhite = it.background.isLight(this))
+        }
+        viewModel.isZoomControlsEnabled.observe(this) {
+            viewBinding.zoomControl.isVisible = it
+        }
+        addMenuProvider(ReaderMenuProvider(viewModel))
 
-	override fun onUserInteraction() {
-		super.onUserInteraction()
-		if (!viewBinding.timerControl.isVisible) {
-			scrollTimer.onUserInteraction()
-		}
-		idlingDetector.onUserInteraction()
-	}
+        observeWindowLayout()
 
-	override fun onPause() {
-		super.onPause()
-		viewModel.onPause()
-	}
+        // Apply initial double-mode considering foldable setting
+        applyDoubleModeAuto()
+    }
 
-	override fun onStop() {
-		super.onStop()
-		viewModel.onStop()
-	}
+    override fun getParentActivityIntent(): Intent? {
+        val manga = viewModel.getMangaOrNull() ?: return null
+        return AppRouter.detailsIntent(this, manga)
+    }
 
-	override fun onProvideAssistContent(outContent: AssistContent) {
-		super.onProvideAssistContent(outContent)
-		viewModel.getMangaOrNull()?.publicUrl?.toUriOrNull()?.let { outContent.webUri = it }
-	}
+    override fun onUserInteraction() {
+        super.onUserInteraction()
+        if (!viewBinding.timerControl.isVisible) {
+            scrollTimer.onUserInteraction()
+        }
+        idlingDetector.onUserInteraction()
+    }
 
-	override fun isNsfwContent(): Flow<Boolean> = viewModel.isMangaNsfw
+    override fun onPause() {
+        super.onPause()
+        viewModel.onPause()
+    }
 
-	override fun onIdle() {
-		viewModel.saveCurrentState(readerManager.currentReader?.getCurrentState())
-		viewModel.onIdle()
-	}
+    override fun onStop() {
+        super.onStop()
+        viewModel.onStop()
+    }
 
-	override fun onVisibilityChanged(v: View, visibility: Int) {
-		updateScrollTimerButton()
-	}
+    override fun onProvideAssistContent(outContent: AssistContent) {
+        super.onProvideAssistContent(outContent)
+        viewModel.getMangaOrNull()?.publicUrl?.toUriOrNull()?.let { outContent.webUri = it }
+    }
 
-	override fun onZoomIn() {
-		readerManager.currentReader?.onZoomIn()
-	}
+    override fun isNsfwContent(): Flow<Boolean> = viewModel.isMangaNsfw
 
-	override fun onZoomOut() {
-		readerManager.currentReader?.onZoomOut()
-	}
+    override fun onIdle() {
+        viewModel.saveCurrentState(readerManager.currentReader?.getCurrentState())
+        viewModel.onIdle()
+    }
 
-	override fun onClick(v: View) {
-		when (v.id) {
-			R.id.button_timer -> onScrollTimerClick(isLongClick = false)
-		}
-	}
+    override fun onVisibilityChanged(v: View, visibility: Int) {
+        updateScrollTimerButton()
+    }
 
-	private fun onInitReader(mode: ReaderMode?) {
-		if (mode == null) {
-			return
-		}
-		if (readerManager.currentMode != mode) {
-			readerManager.replace(mode)
-		}
-		if (viewBinding.appbarTop.isVisible) {
-			lifecycle.postDelayed(TimeUnit.SECONDS.toMillis(1), hideUiRunnable)
-		}
-		viewBinding.actionsView.setSliderReversed(mode == ReaderMode.REVERSED)
-		viewBinding.timerControl.onReaderModeChanged(mode)
-	}
+    override fun onZoomIn() {
+        readerManager.currentReader?.onZoomIn()
+    }
 
-	private fun onLoadingStateChanged(value: Pair<Boolean, Boolean>) {
-		val (isLoading, hasPages) = value
-		val showLoadingLayout = isLoading && !hasPages
-		if (viewBinding.layoutLoading.isVisible != showLoadingLayout) {
-			val transition = Fade().addTarget(viewBinding.layoutLoading)
-			TransitionManager.beginDelayedTransition(viewBinding.root, transition)
-			viewBinding.layoutLoading.isVisible = showLoadingLayout
-		}
-		if (isLoading && hasPages) {
-			viewBinding.toastView.show(R.string.loading_)
-		} else {
-			viewBinding.toastView.hide()
-		}
-		invalidateOptionsMenu()
-	}
+    override fun onZoomOut() {
+        readerManager.currentReader?.onZoomOut()
+    }
 
-	override fun onGridTouch(area: TapGridArea): Boolean {
-		return isReaderResumed() && controlDelegate.onGridTouch(area)
-	}
+    override fun onClick(v: View) {
+        when (v.id) {
+            R.id.button_timer -> onScrollTimerClick(isLongClick = false)
+        }
+    }
 
-	override fun onGridLongTouch(area: TapGridArea) {
-		if (isReaderResumed()) {
-			controlDelegate.onGridLongTouch(area)
-		}
-	}
+    private fun onInitReader(mode: ReaderMode?) {
+        if (mode == null) {
+            return
+        }
+        if (readerManager.currentMode != mode) {
+            readerManager.replace(mode)
+        }
+        if (viewBinding.appbarTop.isVisible) {
+            lifecycle.postDelayed(TimeUnit.SECONDS.toMillis(1), hideUiRunnable)
+        }
+        viewBinding.actionsView.setSliderReversed(mode == ReaderMode.REVERSED)
+        viewBinding.timerControl.onReaderModeChanged(mode)
+    }
 
-	override fun onProcessTouch(rawX: Int, rawY: Int): Boolean {
-		return if (
-			rawX <= gestureInsets.left ||
-			rawY <= gestureInsets.top ||
-			rawX >= viewBinding.root.width - gestureInsets.right ||
-			rawY >= viewBinding.root.height - gestureInsets.bottom ||
-			viewBinding.appbarTop.hasGlobalPoint(rawX, rawY) ||
-			viewBinding.toolbarDocked?.hasGlobalPoint(rawX, rawY) == true
-		) {
-			false
-		} else {
-			val touchables = window.peekDecorView()?.touchables
-			touchables?.none { it.hasGlobalPoint(rawX, rawY) } != false
-		}
-	}
+    private fun onLoadingStateChanged(value: Pair<Boolean, Boolean>) {
+        val (isLoading, hasPages) = value
+        val showLoadingLayout = isLoading && !hasPages
+        if (viewBinding.layoutLoading.isVisible != showLoadingLayout) {
+            val transition = Fade().addTarget(viewBinding.layoutLoading)
+            TransitionManager.beginDelayedTransition(viewBinding.root, transition)
+            viewBinding.layoutLoading.isVisible = showLoadingLayout
+        }
+        if (isLoading && hasPages) {
+            viewBinding.toastView.show(R.string.loading_)
+        } else {
+            viewBinding.toastView.hide()
+        }
+        invalidateOptionsMenu()
+    }
 
-	override fun dispatchTouchEvent(ev: MotionEvent): Boolean {
-		touchHelper.dispatchTouchEvent(ev)
-		if (!viewBinding.timerControl.hasGlobalPoint(ev.rawX.toInt(), ev.rawY.toInt())) {
-			scrollTimer.onTouchEvent(ev)
-		}
-		return super.dispatchTouchEvent(ev)
-	}
+    override fun onGridTouch(area: TapGridArea): Boolean {
+        return isReaderResumed() && controlDelegate.onGridTouch(area)
+    }
 
-	override fun onKeyDown(keyCode: Int, event: KeyEvent?): Boolean {
-		return controlDelegate.onKeyDown(keyCode, event) || super.onKeyDown(keyCode, event)
-	}
+    override fun onGridLongTouch(area: TapGridArea) {
+        if (isReaderResumed()) {
+            controlDelegate.onGridLongTouch(area)
+        }
+    }
 
-	override fun onKeyUp(keyCode: Int, event: KeyEvent?): Boolean {
-		return controlDelegate.onKeyUp(keyCode, event) || super.onKeyUp(keyCode, event)
-	}
+    override fun onProcessTouch(rawX: Int, rawY: Int): Boolean {
+        return if (
+            rawX <= gestureInsets.left ||
+            rawY <= gestureInsets.top ||
+            rawX >= viewBinding.root.width - gestureInsets.right ||
+            rawY >= viewBinding.root.height - gestureInsets.bottom ||
+            viewBinding.appbarTop.hasGlobalPoint(rawX, rawY) ||
+            viewBinding.toolbarDocked?.hasGlobalPoint(rawX, rawY) == true
+        ) {
+            false
+        } else {
+            val touchables = window.peekDecorView()?.touchables
+            touchables?.none { it.hasGlobalPoint(rawX, rawY) } != false
+        }
+    }
 
-	override fun onChapterSelected(chapter: MangaChapter): Boolean {
-		viewModel.switchChapter(chapter.id, 0)
-		return true
-	}
+    override fun dispatchTouchEvent(ev: MotionEvent): Boolean {
+        touchHelper.dispatchTouchEvent(ev)
+        if (!viewBinding.timerControl.hasGlobalPoint(ev.rawX.toInt(), ev.rawY.toInt())) {
+            scrollTimer.onTouchEvent(ev)
+        }
+        return super.dispatchTouchEvent(ev)
+    }
 
-	override fun onPageSelected(page: ReaderPage): Boolean {
-		lifecycleScope.launch(Dispatchers.Default) {
-			val pages = viewModel.content.value.pages
-			val index = pages.indexOfFirst { it.chapterId == page.chapterId && it.id == page.id }
-			if (index != -1) {
-				withContext(Dispatchers.Main) {
-					readerManager.currentReader?.switchPageTo(index, true)
-				}
-			} else {
-				viewModel.switchChapter(page.chapterId, page.index)
-			}
-		}
-		return true
-	}
+    override fun onKeyDown(keyCode: Int, event: KeyEvent?): Boolean {
+        return controlDelegate.onKeyDown(keyCode, event) || super.onKeyDown(keyCode, event)
+    }
 
-	override fun onReaderModeChanged(mode: ReaderMode) {
-		viewModel.saveCurrentState(readerManager.currentReader?.getCurrentState())
-		viewModel.switchMode(mode)
-		viewBinding.timerControl.onReaderModeChanged(mode)
-	}
+    override fun onKeyUp(keyCode: Int, event: KeyEvent?): Boolean {
+        return controlDelegate.onKeyUp(keyCode, event) || super.onKeyUp(keyCode, event)
+    }
 
-	override fun onDoubleModeChanged(isEnabled: Boolean) {
-		readerManager.setDoubleReaderMode(isEnabled)
-	}
+    override fun onChapterSelected(chapter: MangaChapter): Boolean {
+        viewModel.switchChapter(chapter.id, 0)
+        return true
+    }
 
-	private fun setKeepScreenOn(isKeep: Boolean) {
-		if (isKeep) {
-			window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON)
-		} else {
-			window.clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON)
-		}
-	}
+    override fun onPageSelected(page: ReaderPage): Boolean {
+        lifecycleScope.launch(Dispatchers.Default) {
+            val pages = viewModel.content.value.pages
+            val index = pages.indexOfFirst { it.chapterId == page.chapterId && it.id == page.id }
+            if (index != -1) {
+                withContext(Dispatchers.Main) {
+                    readerManager.currentReader?.switchPageTo(index, true)
+                }
+            } else {
+                viewModel.switchChapter(page.chapterId, page.index)
+            }
+        }
+        return true
+    }
 
-	private fun setUiIsVisible(isUiVisible: Boolean) {
-		if (viewBinding.appbarTop.isVisible != isUiVisible) {
-			if (isAnimationsEnabled) {
-				val transition = TransitionSet()
-					.setOrdering(TransitionSet.ORDERING_TOGETHER)
-					.addTransition(Slide(Gravity.TOP).addTarget(viewBinding.appbarTop))
-					.addTransition(Fade().addTarget(viewBinding.infoBar))
-				viewBinding.toolbarDocked?.let {
-					transition.addTransition(Slide(Gravity.BOTTOM).addTarget(it))
-				}
-				TransitionManager.beginDelayedTransition(viewBinding.root, transition)
-			}
-			val isFullscreen = settings.isReaderFullscreenEnabled
-			viewBinding.appbarTop.isVisible = isUiVisible
-			viewBinding.toolbarDocked?.isVisible = isUiVisible
-			viewBinding.infoBar.isGone = isUiVisible || (!viewModel.isInfoBarEnabled.value)
-			viewBinding.infoBar.isTimeVisible = isFullscreen
-			updateScrollTimerButton()
-			systemUiController.setSystemUiVisible(isUiVisible || !isFullscreen)
-			viewBinding.root.requestApplyInsets()
-		}
-	}
+    override fun onReaderModeChanged(mode: ReaderMode) {
+        viewModel.saveCurrentState(readerManager.currentReader?.getCurrentState())
+        viewModel.switchMode(mode)
+        viewBinding.timerControl.onReaderModeChanged(mode)
+    }
 
-	override fun onApplyWindowInsets(v: View, insets: WindowInsetsCompat): WindowInsetsCompat {
-		gestureInsets = insets.getInsets(WindowInsetsCompat.Type.systemGestures())
-		val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
-		viewBinding.toolbar.updateLayoutParams<ViewGroup.MarginLayoutParams> {
-			topMargin = systemBars.top
-			rightMargin = systemBars.right
-			leftMargin = systemBars.left
-		}
-		if (viewBinding.toolbarDocked != null) {
-			viewBinding.actionsView.updateLayoutParams<ViewGroup.MarginLayoutParams> {
-				bottomMargin = systemBars.bottom
-				rightMargin = systemBars.right
-				leftMargin = systemBars.left
-			}
-		}
-		viewBinding.infoBar.updatePadding(
-			top = systemBars.top,
-		)
-		val innerInsets = Insets.of(
-			systemBars.left,
-			if (viewBinding.appbarTop.isVisible) viewBinding.appbarTop.height else systemBars.top,
-			systemBars.right,
-			viewBinding.toolbarDocked?.takeIf { it.isVisible }?.height ?: systemBars.bottom,
-		)
-		return WindowInsetsCompat.Builder(insets)
-			.setInsets(WindowInsetsCompat.Type.systemBars(), innerInsets)
-			.build()
-	}
+    override fun onDoubleModeChanged(isEnabled: Boolean) {
+        // Combine manual toggle with foldable auto setting
+        applyDoubleModeAuto(isEnabled)
+    }
 
-	override fun switchPageBy(delta: Int) {
-		readerManager.currentReader?.switchPageBy(delta)
-	}
+    private fun applyDoubleModeAuto(manualEnabled: Boolean? = null) {
+        val isLandscape = resources.configuration.orientation == Configuration.ORIENTATION_LANDSCAPE
+        // Auto double-page on foldable when device is unfolded (half-opened or flat)
+        val autoFoldable = settings.isReaderDoubleOnFoldable && isFoldUnfolded
+        val manualLandscape = (manualEnabled ?: settings.isReaderDoubleOnLandscape) && isLandscape
+        val autoEnabled = autoFoldable || manualLandscape
+        readerManager.setDoubleReaderMode(autoEnabled)
+    }
 
-	override fun switchChapterBy(delta: Int) {
-		viewModel.switchChapterBy(delta)
-	}
+    private fun setKeepScreenOn(isKeep: Boolean) {
+        if (isKeep) {
+            window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON)
+        } else {
+            window.clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON)
+        }
+    }
 
-	override fun openMenu() {
-		viewModel.saveCurrentState(readerManager.currentReader?.getCurrentState())
-		val currentMode = readerManager.currentMode ?: return
-		router.showReaderConfigSheet(currentMode)
-	}
+    private fun setUiIsVisible(isUiVisible: Boolean) {
+        if (viewBinding.appbarTop.isVisible != isUiVisible) {
+            if (isAnimationsEnabled) {
+                val transition = TransitionSet()
+                    .setOrdering(TransitionSet.ORDERING_TOGETHER)
+                    .addTransition(Slide(Gravity.TOP).addTarget(viewBinding.appbarTop))
+                    .addTransition(Fade().addTarget(viewBinding.infoBar))
+                viewBinding.toolbarDocked?.let {
+                    transition.addTransition(Slide(Gravity.BOTTOM).addTarget(it))
+                }
+                TransitionManager.beginDelayedTransition(viewBinding.root, transition)
+            }
+            val isFullscreen = settings.isReaderFullscreenEnabled
+            viewBinding.appbarTop.isVisible = isUiVisible
+            viewBinding.toolbarDocked?.isVisible = isUiVisible
+            viewBinding.infoBar.isGone = isUiVisible || (!viewModel.isInfoBarEnabled.value)
+            viewBinding.infoBar.isTimeVisible = isFullscreen
+            updateScrollTimerButton()
+            systemUiController.setSystemUiVisible(isUiVisible || !isFullscreen)
+            viewBinding.root.requestApplyInsets()
+        }
+    }
 
-	override fun scrollBy(delta: Int, smooth: Boolean): Boolean {
-		return readerManager.currentReader?.scrollBy(delta, smooth) == true
-	}
+    override fun onApplyWindowInsets(v: View, insets: WindowInsetsCompat): WindowInsetsCompat {
+        gestureInsets = insets.getInsets(WindowInsetsCompat.Type.systemGestures())
+        val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
+        viewBinding.toolbar.updateLayoutParams<ViewGroup.MarginLayoutParams> {
+            topMargin = systemBars.top
+            rightMargin = systemBars.right
+            leftMargin = systemBars.left
+        }
+        if (viewBinding.toolbarDocked != null) {
+            viewBinding.actionsView.updateLayoutParams<ViewGroup.MarginLayoutParams> {
+                bottomMargin = systemBars.bottom
+                rightMargin = systemBars.right
+                leftMargin = systemBars.left
+            }
+        }
+        viewBinding.infoBar.updatePadding(
+            top = systemBars.top,
+        )
+        val innerInsets = Insets.of(
+            systemBars.left,
+            if (viewBinding.appbarTop.isVisible) viewBinding.appbarTop.height else systemBars.top,
+            systemBars.right,
+            viewBinding.toolbarDocked?.takeIf { it.isVisible }?.height ?: systemBars.bottom,
+        )
+        return WindowInsetsCompat.Builder(insets)
+            .setInsets(WindowInsetsCompat.Type.systemBars(), innerInsets)
+            .build()
+    }
 
-	override fun toggleUiVisibility() {
-		setUiIsVisible(!viewBinding.appbarTop.isVisible)
-	}
+    override fun switchPageBy(delta: Int) {
+        readerManager.currentReader?.switchPageBy(delta)
+    }
 
-	override fun isReaderResumed(): Boolean {
-		val reader = readerManager.currentReader ?: return false
-		return reader.isResumed && supportFragmentManager.fragments.lastOrNull() === reader
-	}
+    override fun switchChapterBy(delta: Int) {
+        viewModel.switchChapterBy(delta)
+    }
 
-	override fun onBookmarkClick() {
-		viewModel.toggleBookmark()
-	}
+    override fun openMenu() {
+        viewModel.saveCurrentState(readerManager.currentReader?.getCurrentState())
+        val currentMode = readerManager.currentMode ?: return
+        router.showReaderConfigSheet(currentMode)
+    }
 
-	override fun onSavePageClick() {
-		viewModel.saveCurrentPage(pageSaveHelper)
-	}
+    override fun scrollBy(delta: Int, smooth: Boolean): Boolean {
+        return readerManager.currentReader?.scrollBy(delta, smooth) == true
+    }
 
-	override fun onScrollTimerClick(isLongClick: Boolean) {
-		if (isLongClick) {
-			scrollTimer.setActive(!scrollTimer.isActive.value)
-		} else {
-			viewBinding.timerControl.showOrHide()
-		}
-	}
+    override fun toggleUiVisibility() {
+        setUiIsVisible(!viewBinding.appbarTop.isVisible)
+    }
 
-	override fun toggleScreenOrientation() {
-		if (screenOrientationHelper.toggleScreenOrientation()) {
-			Snackbar.make(
-				viewBinding.container,
-				if (screenOrientationHelper.isLocked) {
-					R.string.screen_rotation_locked
-				} else {
-					R.string.screen_rotation_unlocked
-				},
-				Snackbar.LENGTH_SHORT,
-			).setAnchorView(viewBinding.toolbarDocked)
-				.show()
-		}
-	}
+    override fun isReaderResumed(): Boolean {
+        val reader = readerManager.currentReader ?: return false
+        return reader.isResumed && supportFragmentManager.fragments.lastOrNull() === reader
+    }
 
-	override fun switchPageTo(index: Int) {
-		val pages = viewModel.getCurrentChapterPages()
-		val page = pages?.getOrNull(index) ?: return
-		val chapterId = viewModel.getCurrentState()?.chapterId ?: return
-		onPageSelected(ReaderPage(page, index, chapterId))
-	}
+    override fun onBookmarkClick() {
+        viewModel.toggleBookmark()
+    }
 
-	private fun onReaderBarChanged(isBarEnabled: Boolean) {
-		viewBinding.infoBar.isVisible = isBarEnabled && viewBinding.appbarTop.isGone
-	}
+    override fun onSavePageClick() {
+        viewModel.saveCurrentPage(pageSaveHelper)
+    }
 
-	private fun onUiStateChanged(pair: Pair<ReaderUiState?, ReaderUiState?>) {
-		val (previous: ReaderUiState?, uiState: ReaderUiState?) = pair
-		title = uiState?.mangaName ?: getString(R.string.loading_)
-		viewBinding.infoBar.update(uiState)
-		if (uiState == null) {
-			supportActionBar?.subtitle = null
-			viewBinding.actionsView.setSliderValue(0, 1)
-			viewBinding.actionsView.isSliderEnabled = false
-			return
-		}
-		val chapterTitle = uiState.getChapterTitle(resources)
-		supportActionBar?.subtitle = when {
-			uiState.incognito -> getString(R.string.incognito_mode)
-			else -> chapterTitle
-		}
-		if (chapterTitle != previous?.getChapterTitle(resources) && chapterTitle.isNotEmpty()) {
-			viewBinding.toastView.showTemporary(chapterTitle, TOAST_DURATION)
-		}
-		if (uiState.isSliderAvailable()) {
-			viewBinding.actionsView.setSliderValue(
-				value = uiState.currentPage,
-				max = uiState.totalPages - 1,
-			)
-		} else {
-			viewBinding.actionsView.setSliderValue(0, 1)
-		}
-		viewBinding.actionsView.isSliderEnabled = uiState.isSliderAvailable()
-		viewBinding.actionsView.isNextEnabled = uiState.hasNextChapter()
-		viewBinding.actionsView.isPrevEnabled = uiState.hasPreviousChapter()
-	}
+    override fun onScrollTimerClick(isLongClick: Boolean) {
+        if (isLongClick) {
+            scrollTimer.setActive(!scrollTimer.isActive.value)
+        } else {
+            viewBinding.timerControl.showOrHide()
+        }
+    }
 
-	private fun updateScrollTimerButton() {
-		val button = viewBinding.buttonTimer ?: return
-		val isButtonVisible = scrollTimer.isActive.value
-			&& settings.isReaderAutoscrollFabVisible
-			&& !viewBinding.appbarTop.isVisible
-			&& !viewBinding.timerControl.isVisible
-		if (button.isVisible != isButtonVisible) {
-			val transition = Fade().addTarget(button)
-			TransitionManager.beginDelayedTransition(viewBinding.root, transition)
-			button.isVisible = isButtonVisible
-		}
-	}
+    override fun toggleScreenOrientation() {
+        if (screenOrientationHelper.toggleScreenOrientation()) {
+            Snackbar.make(
+                viewBinding.container,
+                if (screenOrientationHelper.isLocked) {
+                    R.string.screen_rotation_locked
+                } else {
+                    R.string.screen_rotation_unlocked
+                },
+                Snackbar.LENGTH_SHORT,
+            ).setAnchorView(viewBinding.toolbarDocked)
+                .show()
+        }
+    }
 
-	private fun askForIncognitoMode() {
-		buildAlertDialog(this, isCentered = true) {
-			var dontAskAgain = false
-			val listener = DialogInterface.OnClickListener { _, which ->
-				if (which == DialogInterface.BUTTON_NEUTRAL) {
-					finishAfterTransition()
-				} else {
-					viewModel.setIncognitoMode(which == DialogInterface.BUTTON_POSITIVE, dontAskAgain)
-				}
-			}
-			setCheckbox(R.string.dont_ask_again, dontAskAgain) { _, isChecked ->
-				dontAskAgain = isChecked
-			}
-			setIcon(R.drawable.ic_incognito)
-			setTitle(R.string.incognito_mode)
-			setMessage(R.string.incognito_mode_hint_nsfw)
-			setPositiveButton(R.string.incognito, listener)
-			setNegativeButton(R.string.disable, listener)
-			setNeutralButton(android.R.string.cancel, listener)
-			setOnCancelListener { finishAfterTransition() }
-			setCancelable(true)
-		}.show()
-	}
+    override fun switchPageTo(index: Int) {
+        val pages = viewModel.getCurrentChapterPages()
+        val page = pages?.getOrNull(index) ?: return
+        val chapterId = viewModel.getCurrentState()?.chapterId ?: return
+        onPageSelected(ReaderPage(page, index, chapterId))
+    }
 
-	companion object {
+    private fun onReaderBarChanged(isBarEnabled: Boolean) {
+        viewBinding.infoBar.isVisible = isBarEnabled && viewBinding.appbarTop.isGone
+    }
 
-		private const val TOAST_DURATION = 2000L
-	}
+    private fun onUiStateChanged(pair: Pair<ReaderUiState?, ReaderUiState?>) {
+        val (previous: ReaderUiState?, uiState: ReaderUiState?) = pair
+        title = uiState?.mangaName ?: getString(R.string.loading_)
+        viewBinding.infoBar.update(uiState)
+        if (uiState == null) {
+            supportActionBar?.subtitle = null
+            viewBinding.actionsView.setSliderValue(0, 1)
+            viewBinding.actionsView.isSliderEnabled = false
+            return
+        }
+        val chapterTitle = uiState.getChapterTitle(resources)
+        supportActionBar?.subtitle = when {
+            uiState.incognito -> getString(R.string.incognito_mode)
+            else -> chapterTitle
+        }
+        if (
+            settings.isReaderChapterToastEnabled &&
+            chapterTitle != previous?.getChapterTitle(resources) &&
+            chapterTitle.isNotEmpty()
+        ) {
+            viewBinding.toastView.showTemporary(chapterTitle, TOAST_DURATION)
+        }
+        if (uiState.isSliderAvailable()) {
+            viewBinding.actionsView.setSliderValue(
+                value = uiState.currentPage,
+                max = uiState.totalPages - 1,
+            )
+        } else {
+            viewBinding.actionsView.setSliderValue(0, 1)
+        }
+        viewBinding.actionsView.isSliderEnabled = uiState.isSliderAvailable()
+        viewBinding.actionsView.isNextEnabled = uiState.hasNextChapter()
+        viewBinding.actionsView.isPrevEnabled = uiState.hasPreviousChapter()
+    }
+
+    private fun updateScrollTimerButton() {
+        val button = viewBinding.buttonTimer ?: return
+        val isButtonVisible = scrollTimer.isActive.value
+            && settings.isReaderAutoscrollFabVisible
+            && !viewBinding.appbarTop.isVisible
+            && !viewBinding.timerControl.isVisible
+        if (button.isVisible != isButtonVisible) {
+            val transition = Fade().addTarget(button)
+            TransitionManager.beginDelayedTransition(viewBinding.root, transition)
+            button.isVisible = isButtonVisible
+        }
+    }
+
+    // Observe foldable window layout to auto-enable double-page if configured
+    private fun observeWindowLayout() {
+        WindowInfoTracker.getOrCreate(this)
+            .windowLayoutInfo(this)
+            .onEach { info ->
+                val fold = info.displayFeatures.filterIsInstance<FoldingFeature>().firstOrNull()
+                val unfolded = when (fold?.state) {
+                    FoldingFeature.State.HALF_OPENED, FoldingFeature.State.FLAT -> true
+                    else -> false
+                }
+                if (unfolded != isFoldUnfolded) {
+                    isFoldUnfolded = unfolded
+                    applyDoubleModeAuto()
+                }
+            }
+            .launchIn(lifecycleScope)
+    }
+
+    private fun askForIncognitoMode() {
+        buildAlertDialog(this, isCentered = true) {
+            var dontAskAgain = false
+            val listener = DialogInterface.OnClickListener { _, which ->
+                if (which == DialogInterface.BUTTON_NEUTRAL) {
+                    finishAfterTransition()
+                } else {
+                    viewModel.setIncognitoMode(which == DialogInterface.BUTTON_POSITIVE, dontAskAgain)
+                }
+            }
+            setCheckbox(R.string.dont_ask_again, dontAskAgain) { _, isChecked ->
+                dontAskAgain = isChecked
+            }
+            setIcon(R.drawable.ic_incognito)
+            setTitle(R.string.incognito_mode)
+            setMessage(R.string.incognito_mode_hint_nsfw)
+            setPositiveButton(R.string.incognito, listener)
+            setNegativeButton(R.string.disable, listener)
+            setNeutralButton(android.R.string.cancel, listener)
+            setOnCancelListener { finishAfterTransition() }
+            setCancelable(true)
+        }.show()
+    }
+
+    companion object {
+
+        private const val TOAST_DURATION = 2000L
+    }
 }

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

@@ -49,7 +49,7 @@ class ReaderManager(
 	fun setDoubleReaderMode(isEnabled: Boolean) {
 		val mode = currentMode
 		val prevReader = currentReader?.javaClass
-		invalidateTypesMap(isEnabled && isLandscape())
+		invalidateTypesMap(isEnabled)
 		val newReader = modeMap[mode]
 		if (mode != null && newReader != prevReader) {
 			replace(mode)

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

@@ -10,6 +10,7 @@ import androidx.core.view.isGone
 import androidx.core.view.isVisible
 import androidx.core.view.updatePadding
 import androidx.fragment.app.activityViewModels
+import androidx.transition.TransitionManager
 import com.google.android.material.button.MaterialButtonToggleGroup
 import com.google.android.material.slider.Slider
 import dagger.hilt.android.AndroidEntryPoint
@@ -37,227 +38,244 @@ import javax.inject.Inject
 
 @AndroidEntryPoint
 class ReaderConfigSheet :
-	BaseAdaptiveSheet<SheetReaderConfigBinding>(),
-	View.OnClickListener,
-	MaterialButtonToggleGroup.OnButtonCheckedListener,
-	CompoundButton.OnCheckedChangeListener,
-	Slider.OnChangeListener {
+    BaseAdaptiveSheet<SheetReaderConfigBinding>(),
+    View.OnClickListener,
+    MaterialButtonToggleGroup.OnButtonCheckedListener,
+    CompoundButton.OnCheckedChangeListener,
+    Slider.OnChangeListener {
 
-	private val viewModel by activityViewModels<ReaderViewModel>()
+    private val viewModel by activityViewModels<ReaderViewModel>()
 
-	@Inject
-	lateinit var orientationHelper: ScreenOrientationHelper
+    @Inject
+    lateinit var orientationHelper: ScreenOrientationHelper
 
-	@Inject
-	lateinit var mangaRepositoryFactory: MangaRepository.Factory
+    @Inject
+    lateinit var mangaRepositoryFactory: MangaRepository.Factory
 
-	@Inject
-	lateinit var pageLoader: PageLoader
+    @Inject
+    lateinit var pageLoader: PageLoader
 
-	private lateinit var mode: ReaderMode
-	private lateinit var imageServerDelegate: ImageServerDelegate
+    private lateinit var mode: ReaderMode
+    private lateinit var imageServerDelegate: ImageServerDelegate
 
-	@Inject
-	lateinit var settings: AppSettings
+    @Inject
+    lateinit var settings: AppSettings
 
-	override fun onCreate(savedInstanceState: Bundle?) {
-		super.onCreate(savedInstanceState)
-		mode = arguments?.getInt(AppRouter.KEY_READER_MODE)
-			?.let { ReaderMode.valueOf(it) }
-			?: ReaderMode.STANDARD
-		imageServerDelegate = ImageServerDelegate(
-			mangaRepositoryFactory = mangaRepositoryFactory,
-			mangaSource = viewModel.getMangaOrNull()?.source,
-		)
-	}
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        mode = arguments?.getInt(AppRouter.KEY_READER_MODE)
+            ?.let { ReaderMode.valueOf(it) }
+            ?: ReaderMode.STANDARD
+        imageServerDelegate = ImageServerDelegate(
+            mangaRepositoryFactory = mangaRepositoryFactory,
+            mangaSource = viewModel.getMangaOrNull()?.source,
+        )
+    }
 
-	override fun onCreateViewBinding(
-		inflater: LayoutInflater,
-		container: ViewGroup?,
-	): SheetReaderConfigBinding {
-		return SheetReaderConfigBinding.inflate(inflater, container, false)
-	}
+    override fun onCreateViewBinding(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+    ): SheetReaderConfigBinding {
+        return SheetReaderConfigBinding.inflate(inflater, container, false)
+    }
 
-	override fun onViewBindingCreated(
-		binding: SheetReaderConfigBinding,
-		savedInstanceState: Bundle?,
-	) {
-		super.onViewBindingCreated(binding, savedInstanceState)
-		observeScreenOrientation()
-		binding.buttonStandard.isChecked = mode == ReaderMode.STANDARD
-		binding.buttonReversed.isChecked = mode == ReaderMode.REVERSED
-		binding.buttonWebtoon.isChecked = mode == ReaderMode.WEBTOON
-		binding.buttonVertical.isChecked = mode == ReaderMode.VERTICAL
-		binding.switchDoubleReader.isChecked = settings.isReaderDoubleOnLandscape
-		binding.switchDoubleReader.isEnabled = mode == ReaderMode.STANDARD || mode == ReaderMode.REVERSED
-		binding.switchPullGesture.isChecked = settings.isWebtoonPullGestureEnabled
-		binding.switchPullGesture.isEnabled = mode == ReaderMode.WEBTOON
+    override fun onViewBindingCreated(
+        binding: SheetReaderConfigBinding,
+        savedInstanceState: Bundle?,
+    ) {
+        super.onViewBindingCreated(binding, savedInstanceState)
+        observeScreenOrientation()
+        binding.buttonStandard.isChecked = mode == ReaderMode.STANDARD
+        binding.buttonReversed.isChecked = mode == ReaderMode.REVERSED
+        binding.buttonWebtoon.isChecked = mode == ReaderMode.WEBTOON
+        binding.buttonVertical.isChecked = mode == ReaderMode.VERTICAL
+        binding.switchDoubleReader.isChecked = settings.isReaderDoubleOnLandscape
+        binding.switchDoubleReader.isEnabled = mode == ReaderMode.STANDARD || mode == ReaderMode.REVERSED
+        binding.switchDoubleFoldable.isChecked = settings.isReaderDoubleOnFoldable
+        binding.switchDoubleFoldable.isEnabled = binding.switchDoubleReader.isEnabled
+        binding.sliderDoubleSensitivity.setValueRounded(settings.readerDoublePagesSensitivity * 100f)
+        binding.sliderDoubleSensitivity.setLabelFormatter(IntPercentLabelFormatter(binding.root.context))
+        binding.adjustSensitivitySlider(withAnimation = false)
 
-		binding.textSensitivity.isVisible = settings.isReaderDoubleOnLandscape
-		binding.seekbarSensitivity.isVisible = settings.isReaderDoubleOnLandscape
-		binding.seekbarSensitivity.setValueRounded(settings.readerDoublePagesSensitivity * 100f)
-		binding.seekbarSensitivity.setLabelFormatter(IntPercentLabelFormatter(binding.root.context))
+        binding.checkableGroup.addOnButtonCheckedListener(this)
+        binding.buttonSavePage.setOnClickListener(this)
+        binding.buttonScreenRotate.setOnClickListener(this)
+        binding.buttonSettings.setOnClickListener(this)
+        binding.buttonImageServer.setOnClickListener(this)
+        binding.buttonColorFilter.setOnClickListener(this)
+        binding.buttonScrollTimer.setOnClickListener(this)
+        binding.buttonBookmark.setOnClickListener(this)
+        binding.switchDoubleReader.setOnCheckedChangeListener(this)
+        binding.switchDoubleFoldable.setOnCheckedChangeListener(this)
+        binding.sliderDoubleSensitivity.addOnChangeListener(this)
 
-		binding.checkableGroup.addOnButtonCheckedListener(this)
-		binding.buttonSavePage.setOnClickListener(this)
-		binding.buttonScreenRotate.setOnClickListener(this)
-		binding.buttonSettings.setOnClickListener(this)
-		binding.buttonImageServer.setOnClickListener(this)
-		binding.buttonColorFilter.setOnClickListener(this)
-		binding.buttonScrollTimer.setOnClickListener(this)
-		binding.buttonBookmark.setOnClickListener(this)
-		binding.switchDoubleReader.setOnCheckedChangeListener(this)
-		binding.switchPullGesture.setOnCheckedChangeListener(this)
-		binding.seekbarSensitivity.addOnChangeListener(this)
+        viewModel.isBookmarkAdded.observe(viewLifecycleOwner) {
+            binding.buttonBookmark.setText(if (it) R.string.bookmark_remove else R.string.bookmark_add)
+            binding.buttonBookmark.setCompoundDrawablesRelativeWithIntrinsicBounds(
+                if (it) R.drawable.ic_bookmark_checked else R.drawable.ic_bookmark, 0, 0, 0,
+            )
+        }
 
-		viewModel.isBookmarkAdded.observe(viewLifecycleOwner) {
-			binding.buttonBookmark.setText(if (it) R.string.bookmark_remove else R.string.bookmark_add)
-			binding.buttonBookmark.setCompoundDrawablesRelativeWithIntrinsicBounds(
-				if (it) R.drawable.ic_bookmark_checked else R.drawable.ic_bookmark, 0, 0, 0,
-			)
-		}
+        viewLifecycleScope.launch {
+            val isAvailable = imageServerDelegate.isAvailable()
+            if (isAvailable) {
+                bindImageServerTitle()
+            }
+            binding.buttonImageServer.isVisible = isAvailable
+        }
+    }
 
-		viewLifecycleScope.launch {
-			val isAvailable = imageServerDelegate.isAvailable()
-			if (isAvailable) {
-				bindImageServerTitle()
-			}
-			binding.buttonImageServer.isVisible = isAvailable
-		}
-	}
+    override fun onApplyWindowInsets(v: View, insets: WindowInsetsCompat): WindowInsetsCompat {
+        val typeMask = WindowInsetsCompat.Type.systemBars()
+        viewBinding?.scrollView?.updatePadding(
+            bottom = insets.getInsets(typeMask).bottom,
+        )
+        return insets.consume(v, typeMask, bottom = true)
+    }
 
-	override fun onApplyWindowInsets(v: View, insets: WindowInsetsCompat): WindowInsetsCompat {
-		val typeMask = WindowInsetsCompat.Type.systemBars()
-		viewBinding?.scrollView?.updatePadding(
-			bottom = insets.getInsets(typeMask).bottom,
-		)
-		return insets.consume(v, typeMask, bottom = true)
-	}
+    override fun onClick(v: View) {
+        when (v.id) {
+            R.id.button_settings -> {
+                router.openReaderSettings()
+                dismissAllowingStateLoss()
+            }
 
-	override fun onClick(v: View) {
-		when (v.id) {
-			R.id.button_settings -> {
-				router.openReaderSettings()
-				dismissAllowingStateLoss()
-			}
+            R.id.button_scroll_timer -> {
+                findParentCallback(Callback::class.java)?.onScrollTimerClick(false) ?: return
+                dismissAllowingStateLoss()
+            }
 
-			R.id.button_scroll_timer -> {
-				findParentCallback(Callback::class.java)?.onScrollTimerClick(false) ?: return
-				dismissAllowingStateLoss()
-			}
+            R.id.button_save_page -> {
+                findParentCallback(Callback::class.java)?.onSavePageClick() ?: return
+                dismissAllowingStateLoss()
+            }
 
-			R.id.button_save_page -> {
-				findParentCallback(Callback::class.java)?.onSavePageClick() ?: return
-				dismissAllowingStateLoss()
-			}
+            R.id.button_screen_rotate -> {
+                orientationHelper.isLandscape = !orientationHelper.isLandscape
+            }
 
-			R.id.button_screen_rotate -> {
-				orientationHelper.isLandscape = !orientationHelper.isLandscape
-			}
+            R.id.button_bookmark -> {
+                viewModel.toggleBookmark()
+            }
 
-			R.id.button_bookmark -> {
-				viewModel.toggleBookmark()
-			}
+            R.id.button_color_filter -> {
+                val page = viewModel.getCurrentPage() ?: return
+                val manga = viewModel.getMangaOrNull() ?: return
+                router.openColorFilterConfig(manga, page)
+            }
 
-			R.id.button_color_filter -> {
-				val page = viewModel.getCurrentPage() ?: return
-				val manga = viewModel.getMangaOrNull() ?: return
-				router.openColorFilterConfig(manga, page)
-			}
+            R.id.button_image_server -> viewLifecycleScope.launch {
+                if (imageServerDelegate.showDialog(v.context)) {
+                    bindImageServerTitle()
+                    pageLoader.invalidate(clearCache = true)
+                    viewModel.switchChapterBy(0)
+                }
+            }
+        }
+    }
 
-			R.id.button_image_server -> viewLifecycleScope.launch {
-				if (imageServerDelegate.showDialog(v.context)) {
-					bindImageServerTitle()
-					pageLoader.invalidate(clearCache = true)
-					viewModel.switchChapterBy(0)
-				}
-			}
-		}
-	}
+    override fun onCheckedChanged(buttonView: CompoundButton, isChecked: Boolean) {
+        when (buttonView.id) {
+            R.id.switch_screen_lock_rotation -> {
+                orientationHelper.isLocked = isChecked
+            }
 
-	override fun onCheckedChanged(buttonView: CompoundButton, isChecked: Boolean) {
-		when (buttonView.id) {
-			R.id.switch_screen_lock_rotation -> {
-				orientationHelper.isLocked = isChecked
-			}
+            R.id.switch_double_reader -> {
+                settings.isReaderDoubleOnLandscape = isChecked
+                viewBinding?.adjustSensitivitySlider(withAnimation = true)
+                findParentCallback(Callback::class.java)?.onDoubleModeChanged(isChecked)
+            }
 
-			R.id.switch_double_reader -> {
-				settings.isReaderDoubleOnLandscape = isChecked
-				viewBinding?.textSensitivity?.isVisible = isChecked
-				viewBinding?.seekbarSensitivity?.isVisible = isChecked
-				findParentCallback(Callback::class.java)?.onDoubleModeChanged(isChecked)
-			}
+            R.id.switch_double_foldable -> {
+                settings.isReaderDoubleOnFoldable = isChecked
+                // Re-evaluate double-page considering foldable state and current manual toggle
+                findParentCallback(Callback::class.java)?.onDoubleModeChanged(settings.isReaderDoubleOnLandscape)
+            }
+        }
+    }
 
-			R.id.switch_pull_gesture -> {
-				settings.isWebtoonPullGestureEnabled = isChecked
-			}
-		}
-	}
+    override fun onValueChange(slider: Slider, value: Float, fromUser: Boolean) {
+        settings.readerDoublePagesSensitivity = value / 100f
+    }
 
-	override fun onValueChange(slider: Slider, value: Float, fromUser: Boolean) {
-		settings.readerDoublePagesSensitivity = value / 100f
-	}
+    override fun onButtonChecked(
+        group: MaterialButtonToggleGroup?,
+        checkedId: Int,
+        isChecked: Boolean,
+    ) {
+        if (!isChecked) {
+            return
+        }
+        val newMode = when (checkedId) {
+            R.id.button_standard -> ReaderMode.STANDARD
+            R.id.button_webtoon -> ReaderMode.WEBTOON
+            R.id.button_reversed -> ReaderMode.REVERSED
+            R.id.button_vertical -> ReaderMode.VERTICAL
+            else -> return
+        }
+        viewBinding?.run {
+            switchDoubleReader.isEnabled = newMode == ReaderMode.STANDARD || newMode == ReaderMode.REVERSED
+            switchDoubleFoldable.isEnabled = switchDoubleReader.isEnabled
+            adjustSensitivitySlider(withAnimation = true)
+        }
+        if (newMode == mode) {
+            return
+        }
+        findParentCallback(Callback::class.java)?.onReaderModeChanged(newMode) ?: return
+        mode = newMode
+    }
 
-	override fun onButtonChecked(
-		group: MaterialButtonToggleGroup?,
-		checkedId: Int,
-		isChecked: Boolean,
-	) {
-		if (!isChecked) {
-			return
-		}
-		val newMode = when (checkedId) {
-			R.id.button_standard -> ReaderMode.STANDARD
-			R.id.button_webtoon -> ReaderMode.WEBTOON
-			R.id.button_reversed -> ReaderMode.REVERSED
-			R.id.button_vertical -> ReaderMode.VERTICAL
-			else -> return
-		}
-		viewBinding?.switchDoubleReader?.isEnabled = newMode == ReaderMode.STANDARD || newMode == ReaderMode.REVERSED
-		viewBinding?.switchPullGesture?.isEnabled = newMode == ReaderMode.WEBTOON
-		if (newMode == mode) {
-			return
-		}
-		findParentCallback(Callback::class.java)?.onReaderModeChanged(newMode) ?: return
-		mode = newMode
-	}
+    private fun observeScreenOrientation() {
+        orientationHelper.observeAutoOrientation()
+            .onEach {
+                with(requireViewBinding()) {
+                    buttonScreenRotate.isGone = it
+                    switchScreenLockRotation.isVisible = it
+                    updateOrientationLockSwitch()
+                }
+            }.launchIn(viewLifecycleScope)
+    }
 
-	private fun observeScreenOrientation() {
-		orientationHelper.observeAutoOrientation()
-			.onEach {
-				with(requireViewBinding()) {
-					buttonScreenRotate.isGone = it
-					switchScreenLockRotation.isVisible = it
-					updateOrientationLockSwitch()
-				}
-			}.launchIn(viewLifecycleScope)
-	}
+    private fun updateOrientationLockSwitch() {
+        val switch = viewBinding?.switchScreenLockRotation ?: return
+        switch.setOnCheckedChangeListener(null)
+        switch.isChecked = orientationHelper.isLocked
+        switch.setOnCheckedChangeListener(this)
+    }
 
-	private fun updateOrientationLockSwitch() {
-		val switch = viewBinding?.switchScreenLockRotation ?: return
-		switch.setOnCheckedChangeListener(null)
-		switch.isChecked = orientationHelper.isLocked
-		switch.setOnCheckedChangeListener(this)
-	}
+    private suspend fun bindImageServerTitle() {
+        viewBinding?.buttonImageServer?.text = getString(
+            R.string.inline_preference_pattern,
+            getString(R.string.image_server),
+            imageServerDelegate.getValue() ?: getString(R.string.automatic),
+        )
+    }
 
-	private suspend fun bindImageServerTitle() {
-		viewBinding?.buttonImageServer?.text = getString(
-			R.string.inline_preference_pattern,
-			getString(R.string.image_server),
-			imageServerDelegate.getValue() ?: getString(R.string.automatic),
-		)
-	}
+    private fun SheetReaderConfigBinding.adjustSensitivitySlider(withAnimation: Boolean) {
+        val isSubOptionsVisible = switchDoubleReader.isEnabled && switchDoubleReader.isChecked
+        val needTransition = withAnimation && (
+            (isSubOptionsVisible != sliderDoubleSensitivity.isVisible) ||
+                (isSubOptionsVisible != textDoubleSensitivity.isVisible) ||
+                (isSubOptionsVisible != switchDoubleFoldable.isVisible)
+            )
+        if (needTransition) {
+            TransitionManager.beginDelayedTransition(layoutMain)
+        }
+        sliderDoubleSensitivity.isVisible = isSubOptionsVisible
+        textDoubleSensitivity.isVisible = isSubOptionsVisible
+        switchDoubleFoldable.isVisible = isSubOptionsVisible
+    }
 
-	interface Callback {
+    interface Callback {
 
-		fun onReaderModeChanged(mode: ReaderMode)
+        fun onReaderModeChanged(mode: ReaderMode)
 
-		fun onDoubleModeChanged(isEnabled: Boolean)
+        fun onDoubleModeChanged(isEnabled: Boolean)
 
-		fun onSavePageClick()
+        fun onSavePageClick()
 
-		fun onScrollTimerClick(isLongClick: Boolean)
+        fun onScrollTimerClick(isLongClick: Boolean)
 
-		fun onBookmarkClick()
-	}
+        fun onBookmarkClick()
+    }
 }

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

@@ -25,11 +25,26 @@ abstract class BaseReaderFragment<B : ViewBinding> : BaseFragment<B>(), ZoomCont
 		readerAdapter = onCreateAdapter()
 
 		viewModel.content.observe(viewLifecycleOwner) {
-			if (it.state == null && it.pages.isNotEmpty() && readerAdapter?.hasItems != true) {
-				onPagesChanged(it.pages, viewModel.getCurrentState())
-			} else {
-				onPagesChanged(it.pages, it.state)
+			// Determine which state to use for restoring position:
+			// - content.state: explicitly set state (e.g., after mode switch or chapter change)
+			// - getCurrentState(): current reading position saved in SavedStateHandle
+			val currentState = viewModel.getCurrentState()
+			val pendingState = when {
+				// If content.state is null and we have pages, use getCurrentState
+				it.state == null
+					&& it.pages.isNotEmpty()
+					&& readerAdapter?.hasItems != true -> currentState
+
+				// use currentState only if it matches the current pages (to avoid the error message)
+				readerAdapter?.hasItems != true
+					&& it.state != currentState
+					&& currentState != null
+					&& it.pages.any { page -> page.chapterId == currentState.chapterId } -> currentState
+
+				// Otherwise, use content.state (normal flow, mode switch, chapter change)
+				else -> it.state
 			}
+			onPagesChanged(it.pages, pendingState)
 		}
 	}
 

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

@@ -29,120 +29,133 @@ import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.search.domain.SearchKind
 
 @AndroidEntryPoint
-class RemoteListFragment : MangaListFragment(), FilterCoordinator.Owner {
+class RemoteListFragment : MangaListFragment(), FilterCoordinator.Owner, View.OnClickListener {
 
-	override val viewModel by viewModels<RemoteListViewModel>()
+    override val viewModel by viewModels<RemoteListViewModel>()
 
-	override val filterCoordinator: FilterCoordinator
-		get() = viewModel.filterCoordinator
+    override val filterCoordinator: FilterCoordinator
+        get() = viewModel.filterCoordinator
 
-	override fun onViewBindingCreated(binding: FragmentListBinding, savedInstanceState: Bundle?) {
-		super.onViewBindingCreated(binding, savedInstanceState)
-		addMenuProvider(RemoteListMenuProvider())
-		addMenuProvider(MangaSearchMenuProvider(filterCoordinator, viewModel))
-		viewModel.isRandomLoading.observe(viewLifecycleOwner, MenuInvalidator(requireActivity()))
-		viewModel.onOpenManga.observeEvent(viewLifecycleOwner) { router.openDetails(it) }
-		filterCoordinator.observe().distinctUntilChangedBy { it.listFilter.isEmpty() }
-			.drop(1)
-			.observe(viewLifecycleOwner) {
-				activity?.invalidateMenu()
-			}
-	}
+    override fun onViewBindingCreated(binding: FragmentListBinding, savedInstanceState: Bundle?) {
+        super.onViewBindingCreated(binding, savedInstanceState)
+        addMenuProvider(RemoteListMenuProvider())
+        addMenuProvider(MangaSearchMenuProvider(filterCoordinator, viewModel))
+        viewModel.isRandomLoading.observe(viewLifecycleOwner, MenuInvalidator(requireActivity()))
+        viewModel.onOpenManga.observeEvent(viewLifecycleOwner) { router.openDetails(it) }
+        viewModel.onSourceBroken.observeEvent(viewLifecycleOwner) { showSourceBrokenWarning() }
+        filterCoordinator.observe().distinctUntilChangedBy { it.listFilter.isEmpty() }
+            .drop(1)
+            .observe(viewLifecycleOwner) {
+                activity?.invalidateMenu()
+            }
+    }
 
-	override fun onScrolledToEnd() {
-		viewModel.loadNextPage()
-	}
+    override fun onScrolledToEnd() {
+        viewModel.loadNextPage()
+    }
 
-	override fun onCreateActionMode(
-		controller: ListSelectionController,
-		menuInflater: MenuInflater,
-		menu: Menu
-	): Boolean {
-		menuInflater.inflate(R.menu.mode_remote, menu)
-		return super.onCreateActionMode(controller, menuInflater, menu)
-	}
+    override fun onCreateActionMode(
+        controller: ListSelectionController,
+        menuInflater: MenuInflater,
+        menu: Menu
+    ): Boolean {
+        menuInflater.inflate(R.menu.mode_remote, menu)
+        return super.onCreateActionMode(controller, menuInflater, menu)
+    }
 
-	override fun onFilterClick(view: View?) {
-		router.showFilterSheet()
-	}
+    override fun onFilterClick(view: View?) {
+        router.showFilterSheet()
+    }
 
-	override fun onEmptyActionClick() {
-		if (filterCoordinator.isFilterApplied) {
-			filterCoordinator.reset()
-		} else {
-			openInBrowser(null) // should never be called
-		}
-	}
+    override fun onEmptyActionClick() {
+        if (filterCoordinator.isFilterApplied) {
+            filterCoordinator.reset()
+        } else {
+            openInBrowser(null) // should never be called
+        }
+    }
 
-	override fun onFooterButtonClick() {
-		val filter = filterCoordinator.snapshot().listFilter
-		when {
-			!filter.query.isNullOrEmpty() -> router.openSearch(filter.query.orEmpty(), SearchKind.SIMPLE)
-			!filter.author.isNullOrEmpty() -> router.openSearch(filter.author.orEmpty(), SearchKind.AUTHOR)
-			filter.tags.size == 1 -> router.openSearch(filter.tags.singleOrNull()?.title.orEmpty(), SearchKind.TAG)
-		}
-	}
+    override fun onFooterButtonClick() {
+        val filter = filterCoordinator.snapshot().listFilter
+        when {
+            !filter.query.isNullOrEmpty() -> router.openSearch(filter.query.orEmpty(), SearchKind.SIMPLE)
+            !filter.author.isNullOrEmpty() -> router.openSearch(filter.author.orEmpty(), SearchKind.AUTHOR)
+            filter.tags.size == 1 -> router.openSearch(filter.tags.singleOrNull()?.title.orEmpty(), SearchKind.TAG)
+        }
+    }
 
-	override fun onSecondaryErrorActionClick(error: Throwable) {
-		openInBrowser(error.getCauseUrl())
-	}
+    override fun onSecondaryErrorActionClick(error: Throwable) {
+        openInBrowser(error.getCauseUrl())
+    }
 
-	private fun openInBrowser(url: String?) {
-		if (url?.isHttpUrl() == true) {
-			router.openBrowser(
-				url = url,
-				source = viewModel.source,
-				title = viewModel.source.getTitle(requireContext()),
-			)
-		} else {
-			Snackbar.make(requireViewBinding().recyclerView, R.string.operation_not_supported, Snackbar.LENGTH_SHORT)
-				.show()
-		}
-	}
+    override fun onClick(v: View?) = Unit // from Snackbar, do nothing
 
-	private inner class RemoteListMenuProvider : MenuProvider {
+    private fun openInBrowser(url: String?) {
+        if (url?.isHttpUrl() == true) {
+            router.openBrowser(
+                url = url,
+                source = viewModel.source,
+                title = viewModel.source.getTitle(requireContext()),
+            )
+        } else {
+            Snackbar.make(requireViewBinding().recyclerView, R.string.operation_not_supported, Snackbar.LENGTH_SHORT)
+                .show()
+        }
+    }
 
-		override fun onCreateMenu(menu: Menu, menuInflater: MenuInflater) {
-			menuInflater.inflate(R.menu.opt_list_remote, menu)
-		}
+    private fun showSourceBrokenWarning() {
+        val snackbar = Snackbar.make(
+            viewBinding?.recyclerView ?: return,
+            R.string.source_broken_warning,
+            Snackbar.LENGTH_INDEFINITE,
+        )
+        snackbar.setAction(R.string.got_it, this)
+        snackbar.show()
+    }
 
-		override fun onMenuItemSelected(menuItem: MenuItem): Boolean = when (menuItem.itemId) {
-			R.id.action_source_settings -> {
-				router.openSourceSettings(viewModel.source)
-				true
-			}
+    private inner class RemoteListMenuProvider : MenuProvider {
 
-			R.id.action_random -> {
-				viewModel.openRandom()
-				true
-			}
+        override fun onCreateMenu(menu: Menu, menuInflater: MenuInflater) {
+            menuInflater.inflate(R.menu.opt_list_remote, menu)
+        }
 
-			R.id.action_filter -> {
-				onFilterClick(null)
-				true
-			}
+        override fun onMenuItemSelected(menuItem: MenuItem): Boolean = when (menuItem.itemId) {
+            R.id.action_source_settings -> {
+                router.openSourceSettings(viewModel.source)
+                true
+            }
 
-			R.id.action_filter_reset -> {
-				filterCoordinator.reset()
-				true
-			}
+            R.id.action_random -> {
+                viewModel.openRandom()
+                true
+            }
 
-			else -> false
-		}
+            R.id.action_filter -> {
+                onFilterClick(null)
+                true
+            }
 
-		override fun onPrepareMenu(menu: Menu) {
-			super.onPrepareMenu(menu)
-			menu.findItem(R.id.action_random)?.isEnabled = !viewModel.isRandomLoading.value
-			menu.findItem(R.id.action_filter_reset)?.isVisible = filterCoordinator.isFilterApplied
-		}
-	}
+            R.id.action_filter_reset -> {
+                filterCoordinator.reset()
+                true
+            }
 
-	companion object {
+            else -> false
+        }
 
-		const val ARG_SOURCE = "provider"
+        override fun onPrepareMenu(menu: Menu) {
+            super.onPrepareMenu(menu)
+            menu.findItem(R.id.action_random)?.isEnabled = !viewModel.isRandomLoading.value
+            menu.findItem(R.id.action_filter_reset)?.isVisible = filterCoordinator.isFilterApplied
+        }
+    }
 
-		fun newInstance(source: MangaSource) = RemoteListFragment().withArgs(1) {
-			putString(ARG_SOURCE, source.name)
-		}
-	}
+    companion object {
+
+        const val ARG_SOURCE = "provider"
+
+        fun newInstance(source: MangaSource) = RemoteListFragment().withArgs(1) {
+            putString(ARG_SOURCE, source.name)
+        }
+    }
 }

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

@@ -44,6 +44,7 @@ import org.koitharu.kotatsu.list.ui.model.toErrorState
 import org.koitharu.kotatsu.local.data.LocalStorageChanges
 import org.koitharu.kotatsu.local.domain.model.LocalManga
 import org.koitharu.kotatsu.parsers.model.Manga
+import org.koitharu.kotatsu.parsers.model.MangaParserSource
 import org.koitharu.kotatsu.parsers.util.sizeOrZero
 import javax.inject.Inject
 
@@ -65,6 +66,7 @@ open class RemoteListViewModel @Inject constructor(
 	val source = MangaSource(savedStateHandle[RemoteListFragment.ARG_SOURCE])
 	val isRandomLoading = MutableStateFlow(false)
 	val onOpenManga = MutableEventFlow<Manga>()
+    val onSourceBroken = MutableEventFlow<Unit>()
 
 	protected val repository = mangaRepositoryFactory.create(source)
 	private val mangaList = MutableStateFlow<List<Manga>?>(null)
@@ -117,6 +119,11 @@ open class RemoteListViewModel @Inject constructor(
 		launchJob(Dispatchers.Default) {
 			sourcesRepository.trackUsage(source)
 		}
+
+        if (source is MangaParserSource && source.isBroken) {
+            // Just notify one. Will show reason in future
+            onSourceBroken.call(Unit)
+        }
 	}
 
 	override fun onRefresh() {

app/src/main/kotlin/org/koitharu/kotatsu/scrobbling/common/data/ScrobblingDao.kt

@@ -1,7 +1,10 @@
 package org.koitharu.kotatsu.scrobbling.common.data
 
 import androidx.room.*
+import kotlinx.coroutines.currentCoroutineContext
 import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.flow
+import kotlinx.coroutines.isActive
 
 @Dao
 abstract class ScrobblingDao {
@@ -20,4 +23,20 @@ abstract class ScrobblingDao {
 
 	@Query("DELETE FROM scrobblings WHERE scrobbler = :scrobbler AND manga_id = :mangaId")
 	abstract suspend fun delete(scrobbler: Int, mangaId: Long)
+
+	@Query("SELECT * FROM scrobblings ORDER BY scrobbler LIMIT :limit OFFSET :offset")
+	protected abstract suspend fun findAll(offset: Int, limit: Int): List<ScrobblingEntity>
+
+	fun dumpEnabled(): Flow<ScrobblingEntity> = flow {
+		val window = 10
+		var offset = 0
+		while (currentCoroutineContext().isActive) {
+			val list = findAll(offset, window)
+			if (list.isEmpty()) {
+				break
+			}
+			offset += window
+			list.forEach { emit(it) }
+		}
+	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/search/domain/MangaSearchRepository.kt

@@ -169,4 +169,8 @@ class MangaSearchRepository @Inject constructor(
 			null,
 		)?.use { cursor -> cursor.count } ?: 0
 	}
+
+    suspend fun getAuthors(source: MangaSource, limit: Int): List<String> {
+        return db.getMangaDao().findAuthorsBySource(source.name, limit)
+    }
 }

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

@@ -94,7 +94,7 @@ class SearchActivity :
 		setDisplayHomeAsUp(isEnabled = true, showUpAsClose = false)
 		supportActionBar?.setSubtitle(R.string.search_results)
 
-		addMenuProvider(SearchKindMenuProvider(this, viewModel.query, viewModel.kind))
+		addMenuProvider(SearchMenuProvider(this, viewModel))
 
 		viewModel.list.observe(this, adapter)
 		viewModel.onError.observeEvent(this, SnackbarErrorObserver(viewBinding.recyclerView, null))

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

@@ -9,10 +9,9 @@ import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.nav.router
 import org.koitharu.kotatsu.search.domain.SearchKind
 
-class SearchKindMenuProvider(
+class SearchMenuProvider(
 	private val activity: SearchActivity,
-	private val query: String,
-	private val kind: SearchKind
+	private val viewModel: SearchViewModel,
 ) : MenuProvider {
 
 	override fun onCreateMenu(menu: Menu, menuInflater: MenuInflater) {
@@ -22,7 +21,7 @@ class SearchKindMenuProvider(
 	override fun onPrepareMenu(menu: Menu) {
 		super.onPrepareMenu(menu)
 		menu.findItem(
-			when (kind) {
+			when (viewModel.kind) {
 				SearchKind.SIMPLE -> R.id.action_kind_simple
 				SearchKind.TITLE -> R.id.action_kind_title
 				SearchKind.AUTHOR -> R.id.action_kind_author
@@ -32,6 +31,20 @@ class SearchKindMenuProvider(
 	}
 
 	override fun onMenuItemSelected(menuItem: MenuItem): Boolean {
+		when (menuItem.itemId) {
+			R.id.action_filter_pinned_only -> {
+				menuItem.isChecked = !menuItem.isChecked
+				viewModel.setPinnedOnly(menuItem.isChecked)
+				return true
+			}
+
+			R.id.action_filter_hide_empty -> {
+				menuItem.isChecked = !menuItem.isChecked
+				viewModel.setHideEmpty(menuItem.isChecked)
+				return true
+			}
+		}
+
 		val newKind = when (menuItem.itemId) {
 			R.id.action_kind_simple -> SearchKind.SIMPLE
 			R.id.action_kind_title -> SearchKind.TITLE
@@ -39,9 +52,9 @@ class SearchKindMenuProvider(
 			R.id.action_kind_tag -> SearchKind.TAG
 			else -> return false
 		}
-		if (newKind != kind) {
+		if (newKind != viewModel.kind) {
 			activity.router.openSearch(
-				query = query,
+				query = viewModel.query,
 				kind = newKind,
 			)
 			if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {

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

@@ -62,6 +62,8 @@ class SearchViewModel @Inject constructor(
 	val kind = savedStateHandle.get<SearchKind>(AppRouter.KEY_KIND) ?: SearchKind.SIMPLE
 
 	private var includeDisabledSources = MutableStateFlow(false)
+	private var pinnedOnly = MutableStateFlow(false)
+	private var hideEmpty = MutableStateFlow(false)
 	private val results = MutableStateFlow<List<SearchResultsListModel>>(emptyList())
 
 	private var searchJob: Job? = null
@@ -70,9 +72,15 @@ class SearchViewModel @Inject constructor(
 		results,
 		isLoading.dropWhile { !it },
 		includeDisabledSources,
-	) { list, loading, includeDisabled ->
+		hideEmpty,
+	) { list, loading, includeDisabled, hideEmptyVal ->
+		val filteredList = if (hideEmptyVal) {
+			list.filter { it.list.isNotEmpty() }
+		} else {
+			list
+		}
 		when {
-			list.isEmpty() -> listOf(
+			filteredList.isEmpty() -> listOf(
 				when {
 					loading -> LoadingState
 					else -> EmptyState(
@@ -84,9 +92,9 @@ class SearchViewModel @Inject constructor(
 				},
 			)
 
-			loading -> list + LoadingFooter()
-			includeDisabled -> list
-			else -> list + ButtonFooter(R.string.search_disabled_sources)
+			loading -> filteredList + LoadingFooter()
+			includeDisabled -> filteredList
+			else -> filteredList + ButtonFooter(R.string.search_disabled_sources)
 		}
 	}.stateIn(viewModelScope + Dispatchers.Default, SharingStarted.Eagerly, listOf(LoadingState))
 
@@ -114,6 +122,17 @@ class SearchViewModel @Inject constructor(
 		doSearch()
 	}
 
+	fun setPinnedOnly(value: Boolean) {
+		if (pinnedOnly.value != value) {
+			pinnedOnly.value = value
+			retry()
+		}
+	}
+
+	fun setHideEmpty(value: Boolean) {
+		hideEmpty.value = value
+	}
+
 	fun continueSearch() {
 		if (includeDisabledSources.value) {
 			return
@@ -122,8 +141,12 @@ class SearchViewModel @Inject constructor(
 		searchJob = launchLoadingJob(Dispatchers.Default) {
 			includeDisabledSources.value = true
 			prevJob?.join()
-			val sources = sourcesRepository.getDisabledSources()
-				.sortedByDescending { it.priority() }
+			val sources = if (pinnedOnly.value) {
+				emptyList()
+			} else {
+				sourcesRepository.getDisabledSources()
+					.sortedByDescending { it.priority() }
+			}
 			val semaphore = Semaphore(MAX_PARALLELISM)
 			sources.map { source ->
 				launch {
@@ -142,7 +165,11 @@ class SearchViewModel @Inject constructor(
 			appendResult(searchHistory())
 			appendResult(searchFavorites())
 			appendResult(searchLocal())
-			val sources = sourcesRepository.getEnabledSources()
+			val sources = if (pinnedOnly.value) {
+				sourcesRepository.getPinnedSources().toList()
+			} else {
+				sourcesRepository.getEnabledSources()
+			}
 			val semaphore = Semaphore(MAX_PARALLELISM)
 			sources.map { source ->
 				launch {

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

@@ -37,7 +37,7 @@ fun searchResultsAD(
 	binding.recyclerView.addItemDecoration(selectionDecoration)
 	binding.recyclerView.adapter = adapter
 	val spacing = context.resources.getDimensionPixelOffset(R.dimen.grid_spacing_outer)
-	binding.recyclerView.addItemDecoration(SpacingItemDecoration(spacing))
+	binding.recyclerView.addItemDecoration(SpacingItemDecoration(spacing, withBottomPadding = true))
 	val eventListener = AdapterDelegateClickListenerAdapter(this, itemClickListener)
 	binding.buttonMore.setOnClickListener(eventListener)
 

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

@@ -29,7 +29,7 @@ fun searchSuggestionMangaListAD(
 		left = recyclerView.paddingLeft - spacing,
 		right = recyclerView.paddingRight - spacing,
 	)
-	recyclerView.addItemDecoration(SpacingItemDecoration(spacing))
+	recyclerView.addItemDecoration(SpacingItemDecoration(spacing, withBottomPadding = true))
 	val scrollResetCallback = RecyclerViewScrollCallback(recyclerView, 0, 0)
 
 	bind {

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

@@ -11,11 +11,16 @@ import androidx.appcompat.app.AppCompatDelegate
 import androidx.preference.ListPreference
 import androidx.preference.MultiSelectListPreference
 import androidx.preference.Preference
+import androidx.preference.TwoStatePreference
 import dagger.hilt.android.AndroidEntryPoint
 import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.core.os.AppShortcutManager
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.prefs.ListMode
 import org.koitharu.kotatsu.core.prefs.ProgressIndicatorMode
+import org.koitharu.kotatsu.core.prefs.ScreenshotsPolicy
+import org.koitharu.kotatsu.core.prefs.SearchSuggestionType
+import org.koitharu.kotatsu.core.prefs.TriStateOption
 import org.koitharu.kotatsu.core.ui.BasePreferenceFragment
 import org.koitharu.kotatsu.core.ui.util.ActivityRecreationHandle
 import org.koitharu.kotatsu.core.util.LocaleComparator
@@ -24,8 +29,10 @@ 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.mapToSet
 import org.koitharu.kotatsu.parsers.util.names
 import org.koitharu.kotatsu.parsers.util.toTitleCase
+import org.koitharu.kotatsu.settings.protect.ProtectSetupActivity
 import org.koitharu.kotatsu.settings.utils.ActivityListPreference
 import org.koitharu.kotatsu.settings.utils.MultiSummaryProvider
 import org.koitharu.kotatsu.settings.utils.PercentSummaryProvider
@@ -34,106 +41,145 @@ import javax.inject.Inject
 
 @AndroidEntryPoint
 class AppearanceSettingsFragment :
-	BasePreferenceFragment(R.string.appearance),
-	SharedPreferences.OnSharedPreferenceChangeListener {
+    BasePreferenceFragment(R.string.appearance),
+    SharedPreferences.OnSharedPreferenceChangeListener {
 
-	@Inject
-	lateinit var activityRecreationHandle: ActivityRecreationHandle
+    @Inject
+    lateinit var activityRecreationHandle: ActivityRecreationHandle
 
-	override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
-		addPreferencesFromResource(R.xml.pref_appearance)
-		findPreference<SliderPreference>(AppSettings.KEY_GRID_SIZE)?.summaryProvider = PercentSummaryProvider()
-		findPreference<ListPreference>(AppSettings.KEY_LIST_MODE)?.run {
-			entryValues = ListMode.entries.names()
-			setDefaultValueCompat(ListMode.GRID.name)
-		}
-		findPreference<ListPreference>(AppSettings.KEY_PROGRESS_INDICATORS)?.run {
-			entryValues = ProgressIndicatorMode.entries.names()
-			setDefaultValueCompat(ProgressIndicatorMode.PERCENT_READ.name)
-		}
-		findPreference<ActivityListPreference>(AppSettings.KEY_APP_LOCALE)?.run {
-			initLocalePicker(this)
-			if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
-				activityIntent = Intent(
-					Settings.ACTION_APP_LOCALE_SETTINGS,
-					Uri.fromParts("package", context.packageName, null),
-				)
-			}
-			summaryProvider = Preference.SummaryProvider<ActivityListPreference> {
-				val locale = AppCompatDelegate.getApplicationLocales().get(0)
-				locale?.getDisplayName(locale)?.toTitleCase(locale) ?: getString(R.string.follow_system)
-			}
-			setDefaultValueCompat("")
-		}
-		findPreference<MultiSelectListPreference>(AppSettings.KEY_MANGA_LIST_BADGES)?.run {
-			summaryProvider = MultiSummaryProvider(R.string.none)
-		}
-		bindNavSummary()
-	}
+    @Inject
+    lateinit var appShortcutManager: AppShortcutManager
 
-	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-		super.onViewCreated(view, savedInstanceState)
-		settings.subscribe(this)
-	}
+    override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
+        addPreferencesFromResource(R.xml.pref_appearance)
+        findPreference<SliderPreference>(AppSettings.KEY_GRID_SIZE)?.summaryProvider = PercentSummaryProvider()
+        findPreference<ListPreference>(AppSettings.KEY_LIST_MODE)?.run {
+            entryValues = ListMode.entries.names()
+            setDefaultValueCompat(ListMode.GRID.name)
+        }
+        findPreference<ListPreference>(AppSettings.KEY_PROGRESS_INDICATORS)?.run {
+            entryValues = ProgressIndicatorMode.entries.names()
+            setDefaultValueCompat(ProgressIndicatorMode.PERCENT_READ.name)
+        }
+        findPreference<ActivityListPreference>(AppSettings.KEY_APP_LOCALE)?.run {
+            initLocalePicker(this)
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+                activityIntent = Intent(
+                    Settings.ACTION_APP_LOCALE_SETTINGS,
+                    Uri.fromParts("package", context.packageName, null),
+                )
+            }
+            summaryProvider = Preference.SummaryProvider<ActivityListPreference> {
+                val locale = AppCompatDelegate.getApplicationLocales().get(0)
+                locale?.getDisplayName(locale)?.toTitleCase(locale) ?: getString(R.string.follow_system)
+            }
+            setDefaultValueCompat("")
+        }
+        findPreference<MultiSelectListPreference>(AppSettings.KEY_MANGA_LIST_BADGES)?.run {
+            summaryProvider = MultiSummaryProvider(R.string.none)
+        }
+        findPreference<Preference>(AppSettings.KEY_SHORTCUTS)?.isVisible =
+            appShortcutManager.isDynamicShortcutsAvailable()
+        findPreference<TwoStatePreference>(AppSettings.KEY_PROTECT_APP)
+            ?.isChecked = !settings.appPassword.isNullOrEmpty()
+        findPreference<ListPreference>(AppSettings.KEY_SCREENSHOTS_POLICY)?.run {
+            entryValues = ScreenshotsPolicy.entries.names()
+            setDefaultValueCompat(ScreenshotsPolicy.ALLOW.name)
+        }
+        findPreference<MultiSelectListPreference>(AppSettings.KEY_SEARCH_SUGGESTION_TYPES)?.let { pref ->
+            pref.entryValues = SearchSuggestionType.entries.names()
+            pref.entries = SearchSuggestionType.entries.map { pref.context.getString(it.titleResId) }.toTypedArray()
+            pref.summaryProvider = MultiSummaryProvider(R.string.none)
+            pref.values = settings.searchSuggestionTypes.mapToSet { it.name }
+        }
+        bindNavSummary()
+    }
 
-	override fun onDestroyView() {
-		settings.unsubscribe(this)
-		super.onDestroyView()
-	}
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        settings.subscribe(this)
+    }
 
-	override fun onSharedPreferenceChanged(prefs: SharedPreferences?, key: String?) {
-		when (key) {
-			AppSettings.KEY_THEME -> {
-				AppCompatDelegate.setDefaultNightMode(settings.theme)
-			}
+    override fun onDestroyView() {
+        settings.unsubscribe(this)
+        super.onDestroyView()
+    }
 
-			AppSettings.KEY_COLOR_THEME,
-			AppSettings.KEY_THEME_AMOLED,
-				-> {
-				postRestart()
-			}
+    override fun onSharedPreferenceChanged(prefs: SharedPreferences?, key: String?) {
+        when (key) {
+            AppSettings.KEY_THEME -> {
+                AppCompatDelegate.setDefaultNightMode(settings.theme)
+            }
 
-			AppSettings.KEY_APP_LOCALE -> {
-				AppCompatDelegate.setApplicationLocales(settings.appLocales)
-			}
+            AppSettings.KEY_COLOR_THEME,
+            AppSettings.KEY_THEME_AMOLED,
+                -> {
+                postRestart()
+            }
 
-			AppSettings.KEY_NAV_MAIN -> {
-				bindNavSummary()
-			}
-		}
-	}
+            AppSettings.KEY_APP_LOCALE -> {
+                AppCompatDelegate.setApplicationLocales(settings.appLocales)
+            }
 
-	private fun postRestart() {
-		viewLifecycleOwner.lifecycle.postDelayed(400) {
-			activityRecreationHandle.recreateAll()
-		}
-	}
+            AppSettings.KEY_NAV_MAIN -> {
+                bindNavSummary()
+            }
 
-	private fun initLocalePicker(preference: ListPreference) {
-		val locales = preference.context.getLocalesConfig()
-			.toList()
-			.sortedWithSafe(LocaleComparator())
-		preference.entries = Array(locales.size + 1) { i ->
-			if (i == 0) {
-				getString(R.string.follow_system)
-			} else {
-				val lc = locales[i - 1]
-				lc.getDisplayName(lc).toTitleCase(lc)
-			}
-		}
-		preference.entryValues = Array(locales.size + 1) { i ->
-			if (i == 0) {
-				""
-			} else {
-				locales[i - 1].toLanguageTag()
-			}
-		}
-	}
+            AppSettings.KEY_APP_PASSWORD -> {
+                findPreference<TwoStatePreference>(AppSettings.KEY_PROTECT_APP)
+                    ?.isChecked = !settings.appPassword.isNullOrEmpty()
+            }
+        }
+    }
 
-	private fun bindNavSummary() {
-		val pref = findPreference<Preference>(AppSettings.KEY_NAV_MAIN) ?: return
-		pref.summary = settings.mainNavItems.joinToString {
-			getString(it.title)
-		}
-	}
+    override fun onPreferenceTreeClick(preference: Preference): Boolean {
+        return when (preference.key) {
+            AppSettings.KEY_PROTECT_APP -> {
+                val pref = (preference as? TwoStatePreference ?: return false)
+                if (pref.isChecked) {
+                    pref.isChecked = false
+                    startActivity(Intent(preference.context, ProtectSetupActivity::class.java))
+                } else {
+                    settings.appPassword = null
+                }
+                true
+            }
+
+            else -> super.onPreferenceTreeClick(preference)
+        }
+    }
+
+    private fun postRestart() {
+        viewLifecycleOwner.lifecycle.postDelayed(400) {
+            activityRecreationHandle.recreateAll()
+        }
+    }
+
+    private fun initLocalePicker(preference: ListPreference) {
+        val locales = preference.context.getLocalesConfig()
+            .toList()
+            .sortedWithSafe(LocaleComparator())
+        preference.entries = Array(locales.size + 1) { i ->
+            if (i == 0) {
+                getString(R.string.follow_system)
+            } else {
+                val lc = locales[i - 1]
+                lc.getDisplayName(lc).toTitleCase(lc)
+            }
+        }
+        preference.entryValues = Array(locales.size + 1) { i ->
+            if (i == 0) {
+                ""
+            } else {
+                locales[i - 1].toLanguageTag()
+            }
+        }
+    }
+
+    private fun bindNavSummary() {
+        val pref = findPreference<Preference>(AppSettings.KEY_NAV_MAIN) ?: return
+        pref.summary = settings.mainNavItems.joinToString {
+            getString(it.title)
+        }
+    }
 }

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

@@ -1,66 +0,0 @@
-package org.koitharu.kotatsu.settings
-
-import android.content.SharedPreferences
-import android.os.Bundle
-import android.view.View
-import androidx.preference.ListPreference
-import androidx.preference.Preference
-import com.google.android.material.snackbar.Snackbar
-import org.koitharu.kotatsu.R
-import org.koitharu.kotatsu.core.network.DoHProvider
-import org.koitharu.kotatsu.core.prefs.AppSettings
-import org.koitharu.kotatsu.core.ui.BasePreferenceFragment
-import org.koitharu.kotatsu.core.util.ext.setDefaultValueCompat
-import org.koitharu.kotatsu.parsers.util.names
-import java.net.Proxy
-
-class NetworkSettingsFragment :
-	BasePreferenceFragment(R.string.network),
-	SharedPreferences.OnSharedPreferenceChangeListener {
-
-	override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
-		addPreferencesFromResource(R.xml.pref_network)
-		findPreference<ListPreference>(AppSettings.KEY_DOH)?.run {
-			entryValues = DoHProvider.entries.names()
-			setDefaultValueCompat(DoHProvider.NONE.name)
-		}
-		bindProxySummary()
-	}
-
-	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-		super.onViewCreated(view, savedInstanceState)
-		settings.subscribe(this)
-	}
-
-	override fun onDestroyView() {
-		settings.unsubscribe(this)
-		super.onDestroyView()
-	}
-
-	override fun onSharedPreferenceChanged(prefs: SharedPreferences?, key: String?) {
-		when (key) {
-			AppSettings.KEY_SSL_BYPASS -> {
-				Snackbar.make(listView, R.string.settings_apply_restart_required, Snackbar.LENGTH_INDEFINITE).show()
-			}
-
-			AppSettings.KEY_PROXY_TYPE,
-			AppSettings.KEY_PROXY_ADDRESS,
-			AppSettings.KEY_PROXY_PORT -> {
-				bindProxySummary()
-			}
-		}
-	}
-
-	private fun bindProxySummary() {
-		findPreference<Preference>(AppSettings.KEY_PROXY)?.run {
-			val type = settings.proxyType
-			val address = settings.proxyAddress
-			val port = settings.proxyPort
-			summary = when {
-				type == Proxy.Type.DIRECT -> context.getString(R.string.disabled)
-				address.isNullOrEmpty() || port == 0 -> context.getString(R.string.invalid_proxy_configuration)
-				else -> "$address:$port"
-			}
-		}
-	}
-}

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

@@ -28,8 +28,8 @@ class RootSettingsFragment : BasePreferenceFragment(0) {
 		addPreferencesFromResource(R.xml.pref_root_debug)
 		bindPreferenceSummary("appearance", R.string.theme, R.string.list_mode, R.string.language)
 		bindPreferenceSummary("reader", R.string.read_mode, R.string.scale_mode, R.string.switch_pages)
-		bindPreferenceSummary("network", R.string.proxy, R.string.dns_over_https, R.string.prefetch_content)
-		bindPreferenceSummary("userdata", R.string.protect_application, R.string.backup_restore, R.string.data_deletion)
+		bindPreferenceSummary("network", R.string.storage_usage, R.string.proxy, R.string.prefetch_content)
+		bindPreferenceSummary("userdata", R.string.create_or_restore_backup, R.string.periodic_backups)
 		bindPreferenceSummary("downloads", R.string.manga_save_location, R.string.downloads_wifi_only)
 		bindPreferenceSummary("tracker", R.string.track_sources, R.string.notifications_settings)
 		bindPreferenceSummary("services", R.string.suggestions, R.string.sync, R.string.tracking)

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

@@ -39,7 +39,7 @@ import org.koitharu.kotatsu.settings.sources.SourceSettingsFragment
 import org.koitharu.kotatsu.settings.sources.SourcesSettingsFragment
 import org.koitharu.kotatsu.settings.sources.manage.SourcesManageFragment
 import org.koitharu.kotatsu.settings.tracker.TrackerSettingsFragment
-import org.koitharu.kotatsu.settings.userdata.UserDataSettingsFragment
+import org.koitharu.kotatsu.settings.userdata.BackupsSettingsFragment
 
 @AndroidEntryPoint
 class SettingsActivity :
@@ -146,7 +146,7 @@ class SettingsActivity :
 		val fragment = when (intent?.action) {
 			AppRouter.ACTION_READER -> ReaderSettingsFragment()
 			AppRouter.ACTION_SUGGESTIONS -> SuggestionsSettingsFragment()
-			AppRouter.ACTION_HISTORY -> UserDataSettingsFragment()
+			AppRouter.ACTION_HISTORY -> BackupsSettingsFragment()
 			AppRouter.ACTION_TRACKER -> TrackerSettingsFragment()
 			AppRouter.ACTION_PERIODIC_BACKUP -> PeriodicalBackupSettingsFragment()
 			AppRouter.ACTION_SOURCES -> SourcesSettingsFragment()

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

@@ -0,0 +1,77 @@
+package org.koitharu.kotatsu.settings
+
+import android.content.SharedPreferences
+import android.os.Bundle
+import android.view.View
+import androidx.fragment.app.viewModels
+import androidx.preference.ListPreference
+import androidx.preference.Preference
+import com.google.android.material.snackbar.Snackbar
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.core.exceptions.resolve.SnackbarErrorObserver
+import org.koitharu.kotatsu.core.network.DoHProvider
+import org.koitharu.kotatsu.core.prefs.AppSettings
+import org.koitharu.kotatsu.core.ui.BasePreferenceFragment
+import org.koitharu.kotatsu.core.util.ext.observe
+import org.koitharu.kotatsu.core.util.ext.observeEvent
+import org.koitharu.kotatsu.core.util.ext.setDefaultValueCompat
+import org.koitharu.kotatsu.parsers.util.names
+import org.koitharu.kotatsu.settings.userdata.storage.StorageUsagePreference
+import java.net.Proxy
+
+class StorageAndNetworkSettingsFragment :
+    BasePreferenceFragment(R.string.storage_and_network),
+    SharedPreferences.OnSharedPreferenceChangeListener {
+
+    private val viewModel by viewModels<StorageAndNetworkSettingsViewModel>()
+
+    override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
+        addPreferencesFromResource(R.xml.pref_network_storage)
+        findPreference<ListPreference>(AppSettings.KEY_DOH)?.run {
+            entryValues = DoHProvider.entries.names()
+            setDefaultValueCompat(DoHProvider.NONE.name)
+        }
+        bindProxySummary()
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        viewModel.onError.observeEvent(viewLifecycleOwner, SnackbarErrorObserver(listView, this))
+        settings.subscribe(this)
+        findPreference<StorageUsagePreference>(AppSettings.KEY_STORAGE_USAGE)?.let { pref ->
+            viewModel.storageUsage.observe(viewLifecycleOwner, pref)
+        }
+    }
+
+    override fun onDestroyView() {
+        settings.unsubscribe(this)
+        super.onDestroyView()
+    }
+
+    override fun onSharedPreferenceChanged(prefs: SharedPreferences?, key: String?) {
+        when (key) {
+            AppSettings.KEY_SSL_BYPASS -> {
+                Snackbar.make(listView, R.string.settings_apply_restart_required, Snackbar.LENGTH_INDEFINITE).show()
+            }
+
+            AppSettings.KEY_PROXY_TYPE,
+            AppSettings.KEY_PROXY_ADDRESS,
+            AppSettings.KEY_PROXY_PORT -> {
+                bindProxySummary()
+            }
+        }
+    }
+
+    private fun bindProxySummary() {
+        findPreference<Preference>(AppSettings.KEY_PROXY)?.run {
+            val type = settings.proxyType
+            val address = settings.proxyAddress
+            val port = settings.proxyPort
+            summary = when {
+                type == Proxy.Type.DIRECT -> context.getString(R.string.disabled)
+                address.isNullOrEmpty() || port == 0 -> context.getString(R.string.invalid_proxy_configuration)
+                else -> "$address:$port"
+            }
+        }
+    }
+}

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

@@ -0,0 +1,52 @@
+package org.koitharu.kotatsu.settings
+
+import androidx.lifecycle.viewModelScope
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.SharingStarted
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.flow
+import kotlinx.coroutines.flow.stateIn
+import kotlinx.coroutines.plus
+import org.koitharu.kotatsu.core.ui.BaseViewModel
+import org.koitharu.kotatsu.local.data.CacheDir
+import org.koitharu.kotatsu.local.data.LocalStorageManager
+import org.koitharu.kotatsu.settings.userdata.storage.StorageUsage
+import javax.inject.Inject
+
+@HiltViewModel
+class StorageAndNetworkSettingsViewModel @Inject constructor(
+    private val storageManager: LocalStorageManager,
+) : BaseViewModel() {
+
+    val storageUsage: StateFlow<StorageUsage?> = flow {
+        emit(loadStorageUsage())
+    }.withErrorHandling()
+        .stateIn(viewModelScope + Dispatchers.Default, SharingStarted.WhileSubscribed(1000), null)
+
+    private suspend fun loadStorageUsage(): StorageUsage {
+        val pagesCacheSize = storageManager.computeCacheSize(CacheDir.PAGES)
+        val otherCacheSize = storageManager.computeCacheSize() - pagesCacheSize
+        val storageSize = storageManager.computeStorageSize()
+        val availableSpace = storageManager.computeAvailableSize()
+        val totalBytes = pagesCacheSize + otherCacheSize + storageSize + availableSpace
+        return StorageUsage(
+            savedManga = StorageUsage.Item(
+                bytes = storageSize,
+                percent = (storageSize.toDouble() / totalBytes).toFloat(),
+            ),
+            pagesCache = StorageUsage.Item(
+                bytes = pagesCacheSize,
+                percent = (pagesCacheSize.toDouble() / totalBytes).toFloat(),
+            ),
+            otherCache = StorageUsage.Item(
+                bytes = otherCacheSize,
+                percent = (otherCacheSize.toDouble() / totalBytes).toFloat(),
+            ),
+            available = StorageUsage.Item(
+                bytes = availableSpace,
+                percent = (availableSpace.toDouble() / totalBytes).toFloat(),
+            ),
+        )
+    }
+}

app/src/main/kotlin/org/koitharu/kotatsu/settings/about/AppUpdateActivity.kt

@@ -137,7 +137,7 @@ class AppUpdateActivity : BaseActivity<ActivityAppUpdateBinding>(), View.OnClick
 		viewModel.installIntent.value?.let { intent ->
 			try {
 				startActivity(intent)
-			} catch (e: ActivityNotFoundException) {
+			} catch (e: Exception) {
 				onError(e)
 			}
 			return

app/src/main/kotlin/org/koitharu/kotatsu/settings/search/SettingsItem.kt

@@ -11,6 +11,6 @@ data class SettingsItem(
 ) : ListModel {
 
 	override fun areItemsTheSame(other: ListModel): Boolean {
-		return other is SettingsItem && other.key == key
+		return other is SettingsItem && other.key == key && other.fragmentClass == fragmentClass
 	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/settings/search/SettingsSearchHelper.kt

@@ -13,106 +13,118 @@ import org.koitharu.kotatsu.backups.ui.periodical.PeriodicalBackupSettingsFragme
 import org.koitharu.kotatsu.core.LocalizedAppContext
 import org.koitharu.kotatsu.settings.AppearanceSettingsFragment
 import org.koitharu.kotatsu.settings.DownloadsSettingsFragment
-import org.koitharu.kotatsu.settings.NetworkSettingsFragment
 import org.koitharu.kotatsu.settings.ProxySettingsFragment
 import org.koitharu.kotatsu.settings.ReaderSettingsFragment
 import org.koitharu.kotatsu.settings.ServicesSettingsFragment
+import org.koitharu.kotatsu.settings.StorageAndNetworkSettingsFragment
 import org.koitharu.kotatsu.settings.SuggestionsSettingsFragment
 import org.koitharu.kotatsu.settings.about.AboutSettingsFragment
+import org.koitharu.kotatsu.settings.discord.DiscordSettingsFragment
 import org.koitharu.kotatsu.settings.sources.SourcesSettingsFragment
 import org.koitharu.kotatsu.settings.tracker.TrackerSettingsFragment
-import org.koitharu.kotatsu.settings.userdata.UserDataSettingsFragment
-import org.koitharu.kotatsu.settings.userdata.storage.StorageManageSettingsFragment
+import org.koitharu.kotatsu.settings.userdata.BackupsSettingsFragment
+import org.koitharu.kotatsu.settings.userdata.storage.DataCleanupSettingsFragment
 import javax.inject.Inject
 
 @Reusable
 @SuppressLint("RestrictedApi")
 class SettingsSearchHelper @Inject constructor(
-	@LocalizedAppContext private val context: Context,
+    @LocalizedAppContext private val context: Context,
 ) {
 
-	fun inflatePreferences(): List<SettingsItem> {
-		val preferenceManager = PreferenceManager(context)
-		val result = ArrayList<SettingsItem>()
-		preferenceManager.inflateTo(result, R.xml.pref_appearance, emptyList(), AppearanceSettingsFragment::class.java)
-		preferenceManager.inflateTo(result, R.xml.pref_sources, emptyList(), SourcesSettingsFragment::class.java)
-		preferenceManager.inflateTo(result, R.xml.pref_reader, emptyList(), ReaderSettingsFragment::class.java)
-		preferenceManager.inflateTo(result, R.xml.pref_network, emptyList(), NetworkSettingsFragment::class.java)
-		preferenceManager.inflateTo(result, R.xml.pref_user_data, emptyList(), UserDataSettingsFragment::class.java)
-		preferenceManager.inflateTo(
-			result,
-			R.xml.pref_storage,
-			listOf(context.getString(R.string.data_and_privacy)),
-			StorageManageSettingsFragment::class.java,
-		)
-		preferenceManager.inflateTo(result, R.xml.pref_downloads, emptyList(), DownloadsSettingsFragment::class.java)
-		preferenceManager.inflateTo(result, R.xml.pref_tracker, emptyList(), TrackerSettingsFragment::class.java)
-		preferenceManager.inflateTo(result, R.xml.pref_services, emptyList(), ServicesSettingsFragment::class.java)
-		preferenceManager.inflateTo(result, R.xml.pref_about, emptyList(), AboutSettingsFragment::class.java)
-		preferenceManager.inflateTo(
-			result,
-			R.xml.pref_backup_periodic,
-			listOf(context.getString(R.string.data_and_privacy)),
-			PeriodicalBackupSettingsFragment::class.java,
-		)
-		preferenceManager.inflateTo(
-			result,
-			R.xml.pref_proxy,
-			listOf(context.getString(R.string.proxy)),
-			ProxySettingsFragment::class.java,
-		)
-		preferenceManager.inflateTo(
-			result,
-			R.xml.pref_suggestions,
-			listOf(context.getString(R.string.suggestions)),
-			SuggestionsSettingsFragment::class.java,
-		)
-		preferenceManager.inflateTo(
-			result,
-			R.xml.pref_sources,
-			listOf(context.getString(R.string.remote_sources)),
-			SourcesSettingsFragment::class.java,
-		)
-		return result
-	}
+    fun inflatePreferences(): List<SettingsItem> {
+        val preferenceManager = PreferenceManager(context)
+        val result = ArrayList<SettingsItem>()
+        preferenceManager.inflateTo(result, R.xml.pref_appearance, emptyList(), AppearanceSettingsFragment::class.java)
+        preferenceManager.inflateTo(result, R.xml.pref_sources, emptyList(), SourcesSettingsFragment::class.java)
+        preferenceManager.inflateTo(result, R.xml.pref_reader, emptyList(), ReaderSettingsFragment::class.java)
+        preferenceManager.inflateTo(
+            result,
+            R.xml.pref_network_storage,
+            emptyList(),
+            StorageAndNetworkSettingsFragment::class.java,
+        )
+        preferenceManager.inflateTo(result, R.xml.pref_backups, emptyList(), BackupsSettingsFragment::class.java)
+        preferenceManager.inflateTo(
+            result,
+            R.xml.pref_data_cleanup,
+            listOf(context.getString(R.string.storage_and_network)),
+            DataCleanupSettingsFragment::class.java,
+        )
+        preferenceManager.inflateTo(result, R.xml.pref_downloads, emptyList(), DownloadsSettingsFragment::class.java)
+        preferenceManager.inflateTo(result, R.xml.pref_tracker, emptyList(), TrackerSettingsFragment::class.java)
+        preferenceManager.inflateTo(result, R.xml.pref_services, emptyList(), ServicesSettingsFragment::class.java)
+        preferenceManager.inflateTo(result, R.xml.pref_about, emptyList(), AboutSettingsFragment::class.java)
+        preferenceManager.inflateTo(
+            result,
+            R.xml.pref_backup_periodic,
+            listOf(context.getString(R.string.backup_restore)),
+            PeriodicalBackupSettingsFragment::class.java,
+        )
+        preferenceManager.inflateTo(
+            result,
+            R.xml.pref_proxy,
+            listOf(context.getString(R.string.storage_and_network)),
+            ProxySettingsFragment::class.java,
+        )
+        preferenceManager.inflateTo(
+            result,
+            R.xml.pref_suggestions,
+            listOf(context.getString(R.string.services)),
+            SuggestionsSettingsFragment::class.java,
+        )
+        preferenceManager.inflateTo(
+            result,
+            R.xml.pref_discord,
+            listOf(context.getString(R.string.services)),
+            DiscordSettingsFragment::class.java,
+        )
+        preferenceManager.inflateTo(
+            result,
+            R.xml.pref_sources,
+            listOf(),
+            SourcesSettingsFragment::class.java,
+        )
+        return result
+    }
 
-	private fun PreferenceManager.inflateTo(
-		result: MutableList<SettingsItem>,
-		@XmlRes resId: Int,
-		breadcrumbs: List<String>,
-		fragmentClass: Class<out PreferenceFragmentCompat>
-	) {
-		val screen = inflateFromResource(context, resId, null)
-		val screenTitle = screen.title?.toString()
-		screen.inflateTo(
-			result = result,
-			breadcrumbs = if (screenTitle.isNullOrEmpty()) breadcrumbs else breadcrumbs + screenTitle,
-			fragmentClass = fragmentClass,
-		)
-	}
+    private fun PreferenceManager.inflateTo(
+        result: MutableList<SettingsItem>,
+        @XmlRes resId: Int,
+        breadcrumbs: List<String>,
+        fragmentClass: Class<out PreferenceFragmentCompat>
+    ) {
+        val screen = inflateFromResource(context, resId, null)
+        val screenTitle = screen.title?.toString()
+        screen.inflateTo(
+            result = result,
+            breadcrumbs = if (screenTitle.isNullOrEmpty()) breadcrumbs else breadcrumbs + screenTitle,
+            fragmentClass = fragmentClass,
+        )
+    }
 
-	private fun PreferenceScreen.inflateTo(
-		result: MutableList<SettingsItem>,
-		breadcrumbs: List<String>,
-		fragmentClass: Class<out PreferenceFragmentCompat>
-	): Unit = repeat(preferenceCount) { i ->
-		val pref = this[i]
-		if (pref is PreferenceScreen) {
-			val screenTitle = pref.title?.toString()
-			pref.inflateTo(
-				result = result,
-				breadcrumbs = if (screenTitle.isNullOrEmpty()) breadcrumbs else breadcrumbs + screenTitle,
-				fragmentClass = fragmentClass,
-			)
-		} else {
-			result.add(
-				SettingsItem(
-					key = pref.key ?: return@repeat,
-					title = pref.title ?: return@repeat,
-					breadcrumbs = breadcrumbs,
-					fragmentClass = fragmentClass,
-				),
-			)
-		}
-	}
+    private fun PreferenceScreen.inflateTo(
+        result: MutableList<SettingsItem>,
+        breadcrumbs: List<String>,
+        fragmentClass: Class<out PreferenceFragmentCompat>
+    ): Unit = repeat(preferenceCount) { i ->
+        val pref = this[i]
+        if (pref is PreferenceScreen) {
+            val screenTitle = pref.title?.toString()
+            pref.inflateTo(
+                result = result,
+                breadcrumbs = if (screenTitle.isNullOrEmpty()) breadcrumbs else breadcrumbs + screenTitle,
+                fragmentClass = fragmentClass,
+            )
+        } else {
+            result.add(
+                SettingsItem(
+                    key = pref.key ?: return@repeat,
+                    title = pref.title ?: return@repeat,
+                    breadcrumbs = breadcrumbs,
+                    fragmentClass = fragmentClass,
+                ),
+            )
+        }
+    }
 }

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

@@ -11,6 +11,7 @@ import dagger.hilt.android.AndroidEntryPoint
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.nav.router
 import org.koitharu.kotatsu.core.prefs.AppSettings
+import org.koitharu.kotatsu.core.prefs.TriStateOption
 import org.koitharu.kotatsu.core.ui.BasePreferenceFragment
 import org.koitharu.kotatsu.core.util.ext.getQuantityStringSafe
 import org.koitharu.kotatsu.core.util.ext.observe
@@ -31,6 +32,10 @@ class SourcesSettingsFragment : BasePreferenceFragment(R.string.remote_sources),
 			entries = SourcesSortOrder.entries.map { context.getString(it.titleResId) }.toTypedArray()
 			setDefaultValueCompat(SourcesSortOrder.MANUAL.name)
 		}
+        findPreference<ListPreference>(AppSettings.KEY_INCOGNITO_NSFW)?.run {
+            entryValues = TriStateOption.entries.names()
+            setDefaultValueCompat(TriStateOption.ASK.name)
+        }
 	}
 
 	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {

app/src/main/kotlin/org/koitharu/kotatsu/settings/storage/directories/DirectoryConfigAD.kt

@@ -1,38 +1,66 @@
 package org.koitharu.kotatsu.settings.storage.directories
 
+import android.view.View
 import androidx.core.content.ContextCompat
-import androidx.core.view.isVisible
+import androidx.core.text.bold
+import androidx.core.text.buildSpannedString
+import androidx.core.text.color
+import androidx.core.view.isGone
 import com.hannesdorfmann.adapterdelegates4.dsl.adapterDelegateViewBinding
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
-import org.koitharu.kotatsu.core.util.ext.drawableStart
+import org.koitharu.kotatsu.core.util.FileSize
+import org.koitharu.kotatsu.core.util.ext.getThemeColor
 import org.koitharu.kotatsu.core.util.ext.setTooltipCompat
 import org.koitharu.kotatsu.core.util.ext.textAndVisible
-import org.koitharu.kotatsu.databinding.ItemStorageConfigBinding
-import org.koitharu.kotatsu.settings.storage.DirectoryModel
+import org.koitharu.kotatsu.databinding.ItemStorageConfig2Binding
 
 fun directoryConfigAD(
-	clickListener: OnListItemClickListener<DirectoryModel>,
-) = adapterDelegateViewBinding<DirectoryModel, DirectoryModel, ItemStorageConfigBinding>(
-	{ layoutInflater, parent -> ItemStorageConfigBinding.inflate(layoutInflater, parent, false) },
+    clickListener: OnListItemClickListener<DirectoryConfigModel>,
+) = adapterDelegateViewBinding<DirectoryConfigModel, DirectoryConfigModel, ItemStorageConfig2Binding>(
+    { layoutInflater, parent -> ItemStorageConfig2Binding.inflate(layoutInflater, parent, false) },
 ) {
 
-	binding.buttonRemove.setOnClickListener { v -> clickListener.onItemClick(item, v) }
-	binding.buttonRemove.setTooltipCompat(binding.buttonRemove.contentDescription)
+    binding.buttonRemove.setOnClickListener { v -> clickListener.onItemClick(item, v) }
+    binding.buttonRemove.setTooltipCompat(binding.buttonRemove.contentDescription)
 
-	bind {
-		binding.textViewTitle.text = item.title ?: getString(item.titleRes)
-		binding.textViewSubtitle.textAndVisible = item.file?.absolutePath
-		binding.buttonRemove.isVisible = item.isRemovable
-		binding.buttonRemove.isEnabled = !item.isChecked
-		binding.textViewTitle.drawableStart = if (!item.isAvailable) {
-			ContextCompat.getDrawable(context, R.drawable.ic_alert_outline)?.apply {
-				setTint(ContextCompat.getColor(context, R.color.warning))
-			}
-		} else if (item.isChecked) {
-			ContextCompat.getDrawable(context, R.drawable.ic_download)
-		} else {
-			null
-		}
-	}
+    bind {
+        binding.textViewTitle.text = item.title
+        binding.textViewSubtitle.text = item.path.absolutePath
+        binding.buttonRemove.isGone = item.isAppPrivate
+        binding.buttonRemove.isEnabled = !item.isDefault
+        binding.spacer.visibility = if (item.isAppPrivate) {
+            View.INVISIBLE
+        } else {
+            View.GONE
+        }
+        binding.textViewInfo.textAndVisible = buildSpannedString {
+            if (item.isDefault) {
+                bold {
+                    append(getString(R.string.download_default_directory))
+                }
+            }
+            if (!item.isAccessible) {
+                if (isNotEmpty()) appendLine()
+                color(
+                    context.getThemeColor(
+                        androidx.appcompat.R.attr.colorError,
+                        ContextCompat.getColor(context, R.color.common_red),
+                    ),
+                ) {
+                    append(getString(R.string.no_write_permission_to_file))
+                }
+            }
+            if (item.isAppPrivate) {
+                if (isNotEmpty()) appendLine()
+                append(getString(R.string.private_app_directory_warning))
+            }
+        }
+        binding.indicatorSize.max = FileSize.BYTES.convert(item.available, FileSize.KILOBYTES).toInt()
+        binding.indicatorSize.progress = FileSize.BYTES.convert(item.size, FileSize.KILOBYTES).toInt()
+        binding.textViewSize.text = context.getString(
+            R.string.available_pattern,
+            FileSize.BYTES.format(context, item.available),
+        )
+    }
 }

app/src/main/kotlin/org/koitharu/kotatsu/settings/storage/directories/DirectoryConfigDiffCallback.kt

@@ -0,0 +1,22 @@
+package org.koitharu.kotatsu.settings.storage.directories
+
+import androidx.recyclerview.widget.DiffUtil.ItemCallback
+
+class DirectoryConfigDiffCallback : ItemCallback<DirectoryConfigModel>() {
+
+	override fun areItemsTheSame(oldItem: DirectoryConfigModel, newItem: DirectoryConfigModel): Boolean {
+		return oldItem.path == newItem.path
+	}
+
+	override fun areContentsTheSame(oldItem: DirectoryConfigModel, newItem: DirectoryConfigModel): Boolean {
+		return oldItem == newItem
+	}
+
+	override fun getChangePayload(oldItem: DirectoryConfigModel, newItem: DirectoryConfigModel): Any? {
+		return if (oldItem.isDefault != newItem.isDefault) {
+			Unit
+		} else {
+			super.getChangePayload(oldItem, newItem)
+		}
+	}
+}

app/src/main/kotlin/org/koitharu/kotatsu/settings/storage/directories/DirectoryConfigModel.kt

@@ -0,0 +1,19 @@
+package org.koitharu.kotatsu.settings.storage.directories
+
+import org.koitharu.kotatsu.list.ui.model.ListModel
+import java.io.File
+
+data class DirectoryConfigModel(
+    val title: String,
+    val path: File,
+    val isDefault: Boolean,
+    val isAppPrivate: Boolean,
+    val isAccessible: Boolean,
+    val size: Long,
+    val available: Long,
+) : ListModel {
+
+    override fun areItemsTheSame(other: ListModel): Boolean {
+        return other is DirectoryConfigModel && path == other.path
+    }
+}

app/src/main/kotlin/org/koitharu/kotatsu/settings/storage/directories/MangaDirectoriesActivity.kt

@@ -20,18 +20,17 @@ import org.koitharu.kotatsu.core.exceptions.resolve.SnackbarErrorObserver
 import org.koitharu.kotatsu.core.os.OpenDocumentTreeHelper
 import org.koitharu.kotatsu.core.ui.BaseActivity
 import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
+import org.koitharu.kotatsu.core.ui.list.decor.SpacingItemDecoration
 import org.koitharu.kotatsu.core.util.ext.consumeAllSystemBarsInsets
 import org.koitharu.kotatsu.core.util.ext.observe
 import org.koitharu.kotatsu.core.util.ext.observeEvent
 import org.koitharu.kotatsu.core.util.ext.tryLaunch
 import org.koitharu.kotatsu.databinding.ActivityMangaDirectoriesBinding
-import org.koitharu.kotatsu.settings.storage.DirectoryDiffCallback
-import org.koitharu.kotatsu.settings.storage.DirectoryModel
 import org.koitharu.kotatsu.settings.storage.RequestStorageManagerPermissionContract
 
 @AndroidEntryPoint
 class MangaDirectoriesActivity : BaseActivity<ActivityMangaDirectoriesBinding>(),
-	OnListItemClickListener<DirectoryModel>, View.OnClickListener {
+	OnListItemClickListener<DirectoryConfigModel>, View.OnClickListener {
 
 	private val viewModel: MangaDirectoriesViewModel by viewModels()
 	private val pickFileTreeLauncher = OpenDocumentTreeHelper(
@@ -63,8 +62,10 @@ class MangaDirectoriesActivity : BaseActivity<ActivityMangaDirectoriesBinding>()
 		super.onCreate(savedInstanceState)
 		setContentView(ActivityMangaDirectoriesBinding.inflate(layoutInflater))
 		setDisplayHomeAsUp(isEnabled = true, showUpAsClose = false)
-		val adapter = AsyncListDifferDelegationAdapter(DirectoryDiffCallback(), directoryConfigAD(this))
-		viewBinding.recyclerView.adapter = adapter
+		val adapter = AsyncListDifferDelegationAdapter(DirectoryConfigDiffCallback(), directoryConfigAD(this))
+        val spacing = resources.getDimensionPixelOffset(R.dimen.list_spacing_large)
+        viewBinding.recyclerView.adapter = adapter
+        viewBinding.recyclerView.addItemDecoration(SpacingItemDecoration(spacing, withBottomPadding = false))
 		viewBinding.fabAdd.setOnClickListener(this)
 		viewModel.items.observe(this) { adapter.items = it }
 		viewModel.isLoading.observe(this) { viewBinding.progressBar.isVisible = it }
@@ -76,8 +77,8 @@ class MangaDirectoriesActivity : BaseActivity<ActivityMangaDirectoriesBinding>()
 		)
 	}
 
-	override fun onItemClick(item: DirectoryModel, view: View) {
-		viewModel.onRemoveClick(item.file ?: return)
+	override fun onItemClick(item: DirectoryConfigModel, view: View) {
+		viewModel.onRemoveClick(item.path)
 	}
 
 	override fun onClick(v: View?) {

app/src/main/kotlin/org/koitharu/kotatsu/settings/storage/directories/MangaDirectoriesViewModel.kt

@@ -1,6 +1,7 @@
 package org.koitharu.kotatsu.settings.storage.directories
 
 import android.net.Uri
+import android.os.StatFs
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
@@ -8,82 +9,87 @@ import kotlinx.coroutines.cancelAndJoin
 import kotlinx.coroutines.flow.MutableStateFlow
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.ui.BaseViewModel
+import org.koitharu.kotatsu.core.util.ext.computeSize
 import org.koitharu.kotatsu.core.util.ext.isReadable
 import org.koitharu.kotatsu.core.util.ext.isWriteable
 import org.koitharu.kotatsu.local.data.LocalStorageManager
-import org.koitharu.kotatsu.settings.storage.DirectoryModel
 import java.io.File
 import javax.inject.Inject
 
 @HiltViewModel
 class MangaDirectoriesViewModel @Inject constructor(
-	private val storageManager: LocalStorageManager,
-	private val settings: AppSettings,
+    private val storageManager: LocalStorageManager,
+    private val settings: AppSettings,
 ) : BaseViewModel() {
 
-	val items = MutableStateFlow(emptyList<DirectoryModel>())
-	private var loadingJob: Job? = null
+    val items = MutableStateFlow(emptyList<DirectoryConfigModel>())
+    private var loadingJob: Job? = null
 
-	init {
-		loadList()
-	}
+    init {
+        loadList()
+    }
 
-	fun updateList() {
-		loadList()
-	}
+    fun updateList() {
+        loadList()
+    }
 
-	fun onCustomDirectoryPicked(uri: Uri) {
-		launchLoadingJob(Dispatchers.Default) {
-			loadingJob?.cancelAndJoin()
-			storageManager.takePermissions(uri)
-			val dir = storageManager.resolveUri(uri)
-			if (!dir.canRead()) {
-				throw AccessDeniedException(dir)
-			}
-			if (dir !in storageManager.getApplicationStorageDirs()) {
-				settings.userSpecifiedMangaDirectories += dir
-				loadList()
-			}
-		}
-	}
+    fun onCustomDirectoryPicked(uri: Uri) {
+        launchLoadingJob(Dispatchers.Default) {
+            loadingJob?.cancelAndJoin()
+            storageManager.takePermissions(uri)
+            val dir = storageManager.resolveUri(uri)
+            if (!dir.canRead()) {
+                throw AccessDeniedException(dir)
+            }
+            if (dir !in storageManager.getApplicationStorageDirs()) {
+                settings.userSpecifiedMangaDirectories += dir
+                loadList()
+            }
+        }
+    }
 
-	fun onRemoveClick(directory: File) {
-		settings.userSpecifiedMangaDirectories -= directory
-		if (settings.mangaStorageDir == directory) {
-			settings.mangaStorageDir = null
-		}
-		loadList()
-	}
+    fun onRemoveClick(directory: File) {
+        settings.userSpecifiedMangaDirectories -= directory
+        if (settings.mangaStorageDir == directory) {
+            settings.mangaStorageDir = null
+        }
+        loadList()
+    }
 
-	private fun loadList() {
-		val prevJob = loadingJob
-		loadingJob = launchJob(Dispatchers.Default) {
-			prevJob?.cancelAndJoin()
-			val downloadDir = storageManager.getDefaultWriteableDir()
-			val applicationDirs = storageManager.getApplicationStorageDirs()
-			val customDirs = settings.userSpecifiedMangaDirectories - applicationDirs
-			items.value = buildList(applicationDirs.size + customDirs.size) {
-				applicationDirs.mapTo(this) { dir ->
-					DirectoryModel(
-						title = storageManager.getDirectoryDisplayName(dir, isFullPath = false),
-						titleRes = 0,
-						file = dir,
-						isChecked = dir == downloadDir,
-						isAvailable = dir.isReadable() && dir.isWriteable(),
-						isRemovable = false,
-					)
-				}
-				customDirs.mapTo(this) { dir ->
-					DirectoryModel(
-						title = storageManager.getDirectoryDisplayName(dir, isFullPath = false),
-						titleRes = 0,
-						file = dir,
-						isChecked = dir == downloadDir,
-						isAvailable = dir.isReadable() && dir.isWriteable(),
-						isRemovable = true,
-					)
-				}
-			}
-		}
-	}
+    private fun loadList() {
+        val prevJob = loadingJob
+        loadingJob = launchJob(Dispatchers.Default) {
+            prevJob?.cancelAndJoin()
+            val downloadDir = storageManager.getDefaultWriteableDir()
+            val applicationDirs = storageManager.getApplicationStorageDirs()
+            val customDirs = settings.userSpecifiedMangaDirectories - applicationDirs
+            items.value = buildList(applicationDirs.size + customDirs.size) {
+                applicationDirs.mapTo(this) { dir ->
+                    dir.toDirectoryModel(
+                        isDefault = dir == downloadDir,
+                        isAppPrivate = true,
+                    )
+                }
+                customDirs.mapTo(this) { dir ->
+                    dir.toDirectoryModel(
+                        isDefault = dir == downloadDir,
+                        isAppPrivate = false,
+                    )
+                }
+            }
+        }
+    }
+
+    private suspend fun File.toDirectoryModel(
+        isDefault: Boolean,
+        isAppPrivate: Boolean,
+    ) = DirectoryConfigModel(
+        title = storageManager.getDirectoryDisplayName(this, isFullPath = false),
+        path = this,
+        isDefault = isDefault,
+        isAccessible = isReadable() && isWriteable(),
+        isAppPrivate = isAppPrivate,
+        size = computeSize(),
+        available = StatFs(this.absolutePath).availableBytes,
+    )
 }

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

@@ -0,0 +1,99 @@
+package org.koitharu.kotatsu.settings.userdata
+
+import android.net.Uri
+import android.os.Bundle
+import android.view.View
+import androidx.activity.result.ActivityResultCallback
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.fragment.app.viewModels
+import androidx.preference.Preference
+import com.google.android.material.snackbar.Snackbar
+import dagger.hilt.android.AndroidEntryPoint
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.backups.domain.BackupUtils
+import org.koitharu.kotatsu.backups.ui.backup.BackupService
+import org.koitharu.kotatsu.core.exceptions.resolve.SnackbarErrorObserver
+import org.koitharu.kotatsu.core.nav.router
+import org.koitharu.kotatsu.core.prefs.AppSettings
+import org.koitharu.kotatsu.core.ui.BasePreferenceFragment
+import org.koitharu.kotatsu.core.util.ext.observe
+import org.koitharu.kotatsu.core.util.ext.observeEvent
+import org.koitharu.kotatsu.core.util.ext.tryLaunch
+
+@AndroidEntryPoint
+class BackupsSettingsFragment : BasePreferenceFragment(R.string.backup_restore),
+    ActivityResultCallback<Uri?> {
+
+    private val viewModel: BackupsSettingsViewModel by viewModels()
+
+    private val backupSelectCall = registerForActivityResult(
+        ActivityResultContracts.OpenDocument(),
+        this,
+    )
+
+    private val backupCreateCall = registerForActivityResult(
+        ActivityResultContracts.CreateDocument("application/zip"),
+    ) { uri ->
+        if (uri != null) {
+            if (!BackupService.start(requireContext(), uri)) {
+                Snackbar.make(
+                    listView, R.string.operation_not_supported, Snackbar.LENGTH_SHORT,
+                ).show()
+            }
+        }
+    }
+
+    override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
+        addPreferencesFromResource(R.xml.pref_backups)
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        bindPeriodicalBackupSummary()
+        viewModel.onError.observeEvent(viewLifecycleOwner, SnackbarErrorObserver(listView, this))
+    }
+
+    override fun onPreferenceTreeClick(preference: Preference): Boolean {
+        return when (preference.key) {
+            AppSettings.KEY_BACKUP -> {
+                if (!backupCreateCall.tryLaunch(BackupUtils.generateFileName(preference.context))) {
+                    Snackbar.make(
+                        listView, R.string.operation_not_supported, Snackbar.LENGTH_SHORT,
+                    ).show()
+                }
+                true
+            }
+
+            AppSettings.KEY_RESTORE -> {
+                if (!backupSelectCall.tryLaunch(arrayOf("*/*"))) {
+                    Snackbar.make(
+                        listView, R.string.operation_not_supported, Snackbar.LENGTH_SHORT,
+                    ).show()
+                }
+                true
+            }
+
+            else -> super.onPreferenceTreeClick(preference)
+        }
+    }
+
+    override fun onActivityResult(result: Uri?) {
+        if (result != null) {
+            router.showBackupRestoreDialog(result)
+        }
+    }
+
+    private fun bindPeriodicalBackupSummary() {
+        val preference = findPreference<Preference>(AppSettings.KEY_BACKUP_PERIODICAL_ENABLED) ?: return
+        val entries = resources.getStringArray(R.array.backup_frequency)
+        val entryValues = resources.getStringArray(R.array.values_backup_frequency)
+        viewModel.periodicalBackupFrequency.observe(viewLifecycleOwner) { freq ->
+            preference.summary = if (freq == 0L) {
+                getString(R.string.disabled)
+            } else {
+                val index = entryValues.indexOf(freq.toString())
+                entries.getOrNull(index)
+            }
+        }
+    }
+}

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

@@ -0,0 +1,29 @@
+package org.koitharu.kotatsu.settings.userdata
+
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.flatMapLatest
+import kotlinx.coroutines.flow.flowOf
+import org.koitharu.kotatsu.core.prefs.AppSettings
+import org.koitharu.kotatsu.core.prefs.observeAsFlow
+import org.koitharu.kotatsu.core.ui.BaseViewModel
+import javax.inject.Inject
+
+@HiltViewModel
+class BackupsSettingsViewModel @Inject constructor(
+    private val settings: AppSettings,
+) : BaseViewModel() {
+
+    val periodicalBackupFrequency = settings.observeAsFlow(
+        key = AppSettings.KEY_BACKUP_PERIODICAL_ENABLED,
+        valueProducer = { isPeriodicalBackupEnabled },
+    ).flatMapLatest { isEnabled ->
+        if (isEnabled) {
+            settings.observeAsFlow(
+                key = AppSettings.KEY_BACKUP_PERIODICAL_FREQUENCY,
+                valueProducer = { periodicalBackupFrequency },
+            )
+        } else {
+            flowOf(0)
+        }
+    }
+}

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

@@ -1,172 +0,0 @@
-package org.koitharu.kotatsu.settings.userdata
-
-import android.content.Intent
-import android.content.SharedPreferences
-import android.net.Uri
-import android.os.Bundle
-import android.view.View
-import androidx.activity.result.ActivityResultCallback
-import androidx.activity.result.contract.ActivityResultContracts
-import androidx.fragment.app.viewModels
-import androidx.preference.ListPreference
-import androidx.preference.MultiSelectListPreference
-import androidx.preference.Preference
-import androidx.preference.TwoStatePreference
-import com.google.android.material.snackbar.Snackbar
-import dagger.hilt.android.AndroidEntryPoint
-import org.koitharu.kotatsu.R
-import org.koitharu.kotatsu.backups.domain.BackupUtils
-import org.koitharu.kotatsu.backups.ui.backup.BackupService
-import org.koitharu.kotatsu.core.exceptions.resolve.SnackbarErrorObserver
-import org.koitharu.kotatsu.core.nav.router
-import org.koitharu.kotatsu.core.os.AppShortcutManager
-import org.koitharu.kotatsu.core.prefs.AppSettings
-import org.koitharu.kotatsu.core.prefs.ScreenshotsPolicy
-import org.koitharu.kotatsu.core.prefs.SearchSuggestionType
-import org.koitharu.kotatsu.core.prefs.TriStateOption
-import org.koitharu.kotatsu.core.ui.BasePreferenceFragment
-import org.koitharu.kotatsu.core.util.FileSize
-import org.koitharu.kotatsu.core.util.ext.observe
-import org.koitharu.kotatsu.core.util.ext.observeEvent
-import org.koitharu.kotatsu.core.util.ext.setDefaultValueCompat
-import org.koitharu.kotatsu.core.util.ext.tryLaunch
-import org.koitharu.kotatsu.parsers.util.mapToSet
-import org.koitharu.kotatsu.parsers.util.names
-import org.koitharu.kotatsu.settings.protect.ProtectSetupActivity
-import org.koitharu.kotatsu.settings.utils.MultiSummaryProvider
-import javax.inject.Inject
-
-@AndroidEntryPoint
-class UserDataSettingsFragment : BasePreferenceFragment(R.string.data_and_privacy),
-	SharedPreferences.OnSharedPreferenceChangeListener,
-	ActivityResultCallback<Uri?> {
-
-	@Inject
-	lateinit var appShortcutManager: AppShortcutManager
-
-	private val viewModel: UserDataSettingsViewModel by viewModels()
-
-	private val backupSelectCall = registerForActivityResult(
-		ActivityResultContracts.OpenDocument(),
-		this,
-	)
-
-	private val backupCreateCall = registerForActivityResult(
-		ActivityResultContracts.CreateDocument("application/zip"),
-	) { uri ->
-		if (uri != null) {
-			if (!BackupService.start(requireContext(), uri)) {
-				Snackbar.make(
-					listView, R.string.operation_not_supported, Snackbar.LENGTH_SHORT,
-				).show()
-			}
-		}
-	}
-
-	override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
-		addPreferencesFromResource(R.xml.pref_user_data)
-		findPreference<Preference>(AppSettings.KEY_SHORTCUTS)?.isVisible =
-			appShortcutManager.isDynamicShortcutsAvailable()
-		findPreference<TwoStatePreference>(AppSettings.KEY_PROTECT_APP)
-			?.isChecked = !settings.appPassword.isNullOrEmpty()
-		findPreference<ListPreference>(AppSettings.KEY_SCREENSHOTS_POLICY)?.run {
-			entryValues = ScreenshotsPolicy.entries.names()
-			setDefaultValueCompat(ScreenshotsPolicy.ALLOW.name)
-		}
-		findPreference<ListPreference>(AppSettings.KEY_INCOGNITO_NSFW)?.run {
-			entryValues = TriStateOption.entries.names()
-			setDefaultValueCompat(TriStateOption.ASK.name)
-		}
-	}
-
-	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-		super.onViewCreated(view, savedInstanceState)
-		bindPeriodicalBackupSummary()
-		findPreference<MultiSelectListPreference>(AppSettings.KEY_SEARCH_SUGGESTION_TYPES)?.let { pref ->
-			pref.entryValues = SearchSuggestionType.entries.names()
-			pref.entries = SearchSuggestionType.entries.map { pref.context.getString(it.titleResId) }.toTypedArray()
-			pref.summaryProvider = MultiSummaryProvider(R.string.none)
-			pref.values = settings.searchSuggestionTypes.mapToSet { it.name }
-		}
-		findPreference<Preference>(AppSettings.KEY_STORAGE_USAGE)?.let { pref ->
-			viewModel.storageUsage.observe(viewLifecycleOwner) { size ->
-				pref.summary = if (size < 0L) {
-					pref.context.getString(R.string.computing_)
-				} else {
-					FileSize.BYTES.format(pref.context, size)
-				}
-			}
-		}
-		viewModel.onError.observeEvent(viewLifecycleOwner, SnackbarErrorObserver(listView, this))
-		settings.subscribe(this)
-	}
-
-	override fun onDestroyView() {
-		settings.unsubscribe(this)
-		super.onDestroyView()
-	}
-
-	override fun onPreferenceTreeClick(preference: Preference): Boolean {
-		return when (preference.key) {
-			AppSettings.KEY_BACKUP -> {
-				if (!backupCreateCall.tryLaunch(BackupUtils.generateFileName(preference.context))) {
-					Snackbar.make(
-						listView, R.string.operation_not_supported, Snackbar.LENGTH_SHORT,
-					).show()
-				}
-				true
-			}
-
-			AppSettings.KEY_RESTORE -> {
-				if (!backupSelectCall.tryLaunch(arrayOf("*/*"))) {
-					Snackbar.make(
-						listView, R.string.operation_not_supported, Snackbar.LENGTH_SHORT,
-					).show()
-				}
-				true
-			}
-
-			AppSettings.KEY_PROTECT_APP -> {
-				val pref = (preference as? TwoStatePreference ?: return false)
-				if (pref.isChecked) {
-					pref.isChecked = false
-					startActivity(Intent(preference.context, ProtectSetupActivity::class.java))
-				} else {
-					settings.appPassword = null
-				}
-				true
-			}
-
-			else -> super.onPreferenceTreeClick(preference)
-		}
-	}
-
-	override fun onSharedPreferenceChanged(sharedPreferences: SharedPreferences?, key: String?) {
-		when (key) {
-			AppSettings.KEY_APP_PASSWORD -> {
-				findPreference<TwoStatePreference>(AppSettings.KEY_PROTECT_APP)
-					?.isChecked = !settings.appPassword.isNullOrEmpty()
-			}
-		}
-	}
-
-	override fun onActivityResult(result: Uri?) {
-		if (result != null) {
-			router.showBackupRestoreDialog(result)
-		}
-	}
-
-	private fun bindPeriodicalBackupSummary() {
-		val preference = findPreference<Preference>(AppSettings.KEY_BACKUP_PERIODICAL_ENABLED) ?: return
-		val entries = resources.getStringArray(R.array.backup_frequency)
-		val entryValues = resources.getStringArray(R.array.values_backup_frequency)
-		viewModel.periodicalBackupFrequency.observe(viewLifecycleOwner) { freq ->
-			preference.summary = if (freq == 0L) {
-				getString(R.string.disabled)
-			} else {
-				val index = entryValues.indexOf(freq.toString())
-				entries.getOrNull(index)
-			}
-		}
-	}
-}

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

@@ -1,54 +0,0 @@
-package org.koitharu.kotatsu.settings.userdata
-
-import dagger.hilt.android.lifecycle.HiltViewModel
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.Job
-import kotlinx.coroutines.cancelAndJoin
-import kotlinx.coroutines.flow.MutableStateFlow
-import kotlinx.coroutines.flow.flatMapLatest
-import kotlinx.coroutines.flow.flowOf
-import org.koitharu.kotatsu.core.prefs.AppSettings
-import org.koitharu.kotatsu.core.prefs.observeAsFlow
-import org.koitharu.kotatsu.core.ui.BaseViewModel
-import org.koitharu.kotatsu.local.data.LocalStorageManager
-import javax.inject.Inject
-
-@HiltViewModel
-class UserDataSettingsViewModel @Inject constructor(
-	private val storageManager: LocalStorageManager,
-	private val settings: AppSettings,
-) : BaseViewModel() {
-
-	val storageUsage = MutableStateFlow(-1L)
-
-	val periodicalBackupFrequency = settings.observeAsFlow(
-		key = AppSettings.KEY_BACKUP_PERIODICAL_ENABLED,
-		valueProducer = { isPeriodicalBackupEnabled },
-	).flatMapLatest { isEnabled ->
-		if (isEnabled) {
-			settings.observeAsFlow(
-				key = AppSettings.KEY_BACKUP_PERIODICAL_FREQUENCY,
-				valueProducer = { periodicalBackupFrequency },
-			)
-		} else {
-			flowOf(0)
-		}
-	}
-
-	private var storageUsageJob: Job? = null
-
-	init {
-		loadStorageUsage()
-	}
-
-	private fun loadStorageUsage(): Job {
-		val prevJob = storageUsageJob
-		return launchJob(Dispatchers.Default) {
-			prevJob?.cancelAndJoin()
-			val totalBytes = storageManager.computeCacheSize() + storageManager.computeStorageSize()
-			storageUsage.value = totalBytes
-		}.also {
-			storageUsageJob = it
-		}
-	}
-}

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

@@ -0,0 +1,173 @@
+package org.koitharu.kotatsu.settings.userdata.storage
+
+import android.os.Bundle
+import android.view.View
+import androidx.fragment.app.viewModels
+import androidx.preference.Preference
+import com.google.android.material.snackbar.Snackbar
+import dagger.hilt.android.AndroidEntryPoint
+import kotlinx.coroutines.flow.StateFlow
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.core.exceptions.resolve.SnackbarErrorObserver
+import org.koitharu.kotatsu.core.prefs.AppSettings
+import org.koitharu.kotatsu.core.ui.BasePreferenceFragment
+import org.koitharu.kotatsu.core.ui.dialog.buildAlertDialog
+import org.koitharu.kotatsu.core.ui.util.ReversibleActionObserver
+import org.koitharu.kotatsu.core.util.FileSize
+import org.koitharu.kotatsu.core.util.ext.getQuantityStringSafe
+import org.koitharu.kotatsu.core.util.ext.observe
+import org.koitharu.kotatsu.core.util.ext.observeEvent
+import org.koitharu.kotatsu.local.data.CacheDir
+
+@AndroidEntryPoint
+class DataCleanupSettingsFragment : BasePreferenceFragment(R.string.data_removal) {
+
+    private val viewModel by viewModels<DataCleanupSettingsViewModel>()
+    private val loadingPrefs = HashSet<String>()
+
+    override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
+        addPreferencesFromResource(R.xml.pref_data_cleanup)
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        findPreference<Preference>(AppSettings.KEY_PAGES_CACHE_CLEAR)?.bindBytesSizeSummary(checkNotNull(viewModel.cacheSizes[CacheDir.PAGES]))
+        findPreference<Preference>(AppSettings.KEY_THUMBS_CACHE_CLEAR)?.bindBytesSizeSummary(checkNotNull(viewModel.cacheSizes[CacheDir.THUMBS]))
+        findPreference<Preference>(AppSettings.KEY_HTTP_CACHE_CLEAR)?.bindBytesSizeSummary(viewModel.httpCacheSize)
+        findPreference<Preference>(AppSettings.KEY_SEARCH_HISTORY_CLEAR)?.let { pref ->
+            viewModel.searchHistoryCount.observe(viewLifecycleOwner) {
+                pref.summary = if (it < 0) {
+                    view.context.getString(R.string.loading_)
+                } else {
+                    pref.context.resources.getQuantityStringSafe(R.plurals.items, it, it)
+                }
+            }
+        }
+        findPreference<Preference>(AppSettings.KEY_UPDATES_FEED_CLEAR)?.let { pref ->
+            viewModel.feedItemsCount.observe(viewLifecycleOwner) {
+                pref.summary = if (it < 0) {
+                    view.context.getString(R.string.loading_)
+                } else {
+                    pref.context.resources.getQuantityStringSafe(R.plurals.items, it, it)
+                }
+            }
+        }
+        findPreference<Preference>(AppSettings.KEY_WEBVIEW_CLEAR)?.isVisible = viewModel.isBrowserDataCleanupEnabled
+
+        viewModel.loadingKeys.observe(viewLifecycleOwner) { keys ->
+            loadingPrefs.addAll(keys)
+            loadingPrefs.forEach { prefKey ->
+                findPreference<Preference>(prefKey)?.isEnabled = prefKey !in keys
+            }
+        }
+        viewModel.onError.observeEvent(viewLifecycleOwner, SnackbarErrorObserver(listView, this))
+        viewModel.onActionDone.observeEvent(viewLifecycleOwner, ReversibleActionObserver(listView))
+        viewModel.onChaptersCleanedUp.observeEvent(viewLifecycleOwner, ::onChaptersCleanedUp)
+    }
+
+    override fun onPreferenceTreeClick(preference: Preference): Boolean = when (preference.key) {
+        AppSettings.KEY_COOKIES_CLEAR -> {
+            clearCookies()
+            true
+        }
+
+        AppSettings.KEY_SEARCH_HISTORY_CLEAR -> {
+            clearSearchHistory()
+            true
+        }
+
+        AppSettings.KEY_PAGES_CACHE_CLEAR -> {
+            viewModel.clearCache(preference.key, CacheDir.PAGES)
+            true
+        }
+
+        AppSettings.KEY_THUMBS_CACHE_CLEAR -> {
+            viewModel.clearCache(preference.key, CacheDir.THUMBS, CacheDir.FAVICONS)
+            true
+        }
+
+        AppSettings.KEY_HTTP_CACHE_CLEAR -> {
+            viewModel.clearHttpCache()
+            true
+        }
+
+        AppSettings.KEY_CHAPTERS_CLEAR -> {
+            cleanupChapters()
+            true
+        }
+
+        AppSettings.KEY_WEBVIEW_CLEAR -> {
+            viewModel.clearBrowserData()
+            true
+        }
+
+        AppSettings.KEY_CLEAR_MANGA_DATA -> {
+            viewModel.clearMangaData()
+            true
+        }
+
+        AppSettings.KEY_UPDATES_FEED_CLEAR -> {
+            viewModel.clearUpdatesFeed()
+            true
+        }
+
+        else -> super.onPreferenceTreeClick(preference)
+    }
+
+    private fun onChaptersCleanedUp(result: Pair<Int, Long>) {
+        val c = context ?: return
+        val text = if (result.first == 0 && result.second == 0L) {
+            c.getString(R.string.no_chapters_deleted)
+        } else {
+            c.getString(
+                R.string.chapters_deleted_pattern,
+                c.resources.getQuantityStringSafe(R.plurals.chapters, result.first, result.first),
+                FileSize.BYTES.format(c, result.second),
+            )
+        }
+        Snackbar.make(listView, text, Snackbar.LENGTH_SHORT).show()
+    }
+
+    private fun Preference.bindBytesSizeSummary(stateFlow: StateFlow<Long>) {
+        stateFlow.observe(viewLifecycleOwner) { size ->
+            summary = if (size < 0) {
+                context.getString(R.string.computing_)
+            } else {
+                FileSize.BYTES.format(context, size)
+            }
+        }
+    }
+
+    private fun clearSearchHistory() {
+        buildAlertDialog(context ?: return) {
+            setTitle(R.string.clear_search_history)
+            setMessage(R.string.text_clear_search_history_prompt)
+            setNegativeButton(android.R.string.cancel, null)
+            setPositiveButton(R.string.clear) { _, _ ->
+                viewModel.clearSearchHistory()
+            }
+        }.show()
+    }
+
+    private fun clearCookies() {
+        buildAlertDialog(context ?: return) {
+            setTitle(R.string.clear_cookies)
+            setMessage(R.string.text_clear_cookies_prompt)
+            setNegativeButton(android.R.string.cancel, null)
+            setPositiveButton(R.string.clear) { _, _ ->
+                viewModel.clearCookies()
+            }
+        }.show()
+    }
+
+    private fun cleanupChapters() {
+        buildAlertDialog(context ?: return) {
+            setTitle(R.string.delete_read_chapters)
+            setMessage(R.string.delete_read_chapters_prompt)
+            setNegativeButton(android.R.string.cancel, null)
+            setPositiveButton(R.string.delete) { _, _ ->
+                viewModel.cleanupChapters()
+            }
+        }.show()
+    }
+}

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

@@ -0,0 +1,184 @@
+package org.koitharu.kotatsu.settings.userdata.storage
+
+import android.annotation.SuppressLint
+import android.webkit.WebStorage
+import androidx.webkit.WebStorageCompat
+import androidx.webkit.WebViewFeature
+import coil3.ImageLoader
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.runInterruptible
+import okhttp3.Cache
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.core.network.cookies.MutableCookieJar
+import org.koitharu.kotatsu.core.parser.MangaDataRepository
+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.ext.MutableEventFlow
+import org.koitharu.kotatsu.core.util.ext.call
+import org.koitharu.kotatsu.local.data.CacheDir
+import org.koitharu.kotatsu.local.data.LocalStorageManager
+import org.koitharu.kotatsu.local.domain.DeleteReadChaptersUseCase
+import org.koitharu.kotatsu.search.domain.MangaSearchRepository
+import org.koitharu.kotatsu.tracker.domain.TrackingRepository
+import java.util.EnumMap
+import javax.inject.Inject
+import javax.inject.Provider
+import kotlin.coroutines.resume
+import kotlin.coroutines.suspendCoroutine
+
+@HiltViewModel
+class DataCleanupSettingsViewModel @Inject constructor(
+    private val storageManager: LocalStorageManager,
+    private val httpCache: Cache,
+    private val searchRepository: MangaSearchRepository,
+    private val trackingRepository: TrackingRepository,
+    private val cookieJar: MutableCookieJar,
+    private val deleteReadChaptersUseCase: DeleteReadChaptersUseCase,
+    private val mangaDataRepositoryProvider: Provider<MangaDataRepository>,
+    private val coil: ImageLoader,
+) : BaseViewModel() {
+
+    val onActionDone = MutableEventFlow<ReversibleAction>()
+    val loadingKeys = MutableStateFlow(emptySet<String>())
+
+    val searchHistoryCount = MutableStateFlow(-1)
+    val feedItemsCount = MutableStateFlow(-1)
+    val httpCacheSize = MutableStateFlow(-1L)
+    val cacheSizes = EnumMap<CacheDir, MutableStateFlow<Long>>(CacheDir::class.java)
+
+    val onChaptersCleanedUp = MutableEventFlow<Pair<Int, Long>>()
+
+    val isBrowserDataCleanupEnabled: Boolean
+        get() = WebViewFeature.isFeatureSupported(WebViewFeature.DELETE_BROWSING_DATA)
+
+    init {
+        CacheDir.entries.forEach {
+            cacheSizes[it] = MutableStateFlow(-1L)
+        }
+        launchJob(Dispatchers.Default) {
+            searchHistoryCount.value = searchRepository.getSearchHistoryCount()
+        }
+        launchJob(Dispatchers.Default) {
+            feedItemsCount.value = trackingRepository.getLogsCount()
+        }
+        CacheDir.entries.forEach { cache ->
+            launchJob(Dispatchers.Default) {
+                checkNotNull(cacheSizes[cache]).value = storageManager.computeCacheSize(cache)
+            }
+        }
+        launchJob(Dispatchers.Default) {
+            httpCacheSize.value = runInterruptible { httpCache.size() }
+        }
+    }
+
+    fun clearCache(key: String, vararg caches: CacheDir) {
+        launchJob(Dispatchers.Default) {
+            try {
+                loadingKeys.update { it + key }
+                for (cache in caches) {
+                    storageManager.clearCache(cache)
+                    checkNotNull(cacheSizes[cache]).value = storageManager.computeCacheSize(cache)
+                    if (cache == CacheDir.THUMBS) {
+                        coil.memoryCache?.clear()
+                    }
+                }
+            } finally {
+                loadingKeys.update { it - key }
+            }
+        }
+    }
+
+    fun clearHttpCache() {
+        launchJob(Dispatchers.Default) {
+            try {
+                loadingKeys.update { it + AppSettings.KEY_HTTP_CACHE_CLEAR }
+                val size = runInterruptible(Dispatchers.IO) {
+                    httpCache.evictAll()
+                    httpCache.size()
+                }
+                httpCacheSize.value = size
+            } finally {
+                loadingKeys.update { it - AppSettings.KEY_HTTP_CACHE_CLEAR }
+            }
+        }
+    }
+
+    fun clearSearchHistory() {
+        launchJob(Dispatchers.Default) {
+            searchRepository.clearSearchHistory()
+            searchHistoryCount.value = searchRepository.getSearchHistoryCount()
+            onActionDone.call(ReversibleAction(R.string.search_history_cleared, null))
+        }
+    }
+
+    fun clearCookies() {
+        launchJob {
+            cookieJar.clear()
+            onActionDone.call(ReversibleAction(R.string.cookies_cleared, null))
+        }
+    }
+
+    @SuppressLint("RequiresFeature")
+    fun clearBrowserData() {
+        launchJob {
+            try {
+                loadingKeys.update { it + AppSettings.KEY_WEBVIEW_CLEAR }
+                val storage = WebStorage.getInstance()
+                suspendCoroutine { cont ->
+                    WebStorageCompat.deleteBrowsingData(storage) {
+                        cont.resume(Unit)
+                    }
+                }
+                onActionDone.call(ReversibleAction(R.string.updates_feed_cleared, null))
+            } finally {
+                loadingKeys.update { it - AppSettings.KEY_WEBVIEW_CLEAR }
+            }
+        }
+    }
+
+    fun clearUpdatesFeed() {
+        launchJob(Dispatchers.Default) {
+            try {
+                loadingKeys.update { it + AppSettings.KEY_UPDATES_FEED_CLEAR }
+                trackingRepository.clearLogs()
+                feedItemsCount.value = trackingRepository.getLogsCount()
+                onActionDone.call(ReversibleAction(R.string.updates_feed_cleared, null))
+            } finally {
+                loadingKeys.update { it - AppSettings.KEY_UPDATES_FEED_CLEAR }
+            }
+        }
+    }
+
+    fun clearMangaData() {
+        launchJob(Dispatchers.Default) {
+            try {
+                loadingKeys.update { it + AppSettings.KEY_CLEAR_MANGA_DATA }
+                trackingRepository.gc()
+                val repository = mangaDataRepositoryProvider.get()
+                repository.cleanupLocalManga()
+                repository.cleanupDatabase()
+                onActionDone.call(ReversibleAction(R.string.updates_feed_cleared, null))
+            } finally {
+                loadingKeys.update { it - AppSettings.KEY_CLEAR_MANGA_DATA }
+            }
+        }
+    }
+
+    fun cleanupChapters() {
+        launchJob(Dispatchers.Default) {
+            try {
+                loadingKeys.update { it + AppSettings.KEY_CHAPTERS_CLEAR }
+                val oldSize = storageManager.computeStorageSize()
+                val chaptersCount = deleteReadChaptersUseCase.invoke()
+                val newSize = storageManager.computeStorageSize()
+                onChaptersCleanedUp.call(chaptersCount to oldSize - newSize)
+            } finally {
+                loadingKeys.update { it - AppSettings.KEY_CHAPTERS_CLEAR }
+            }
+        }
+    }
+}

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

@@ -1,173 +0,0 @@
-package org.koitharu.kotatsu.settings.userdata.storage
-
-import android.os.Bundle
-import android.view.View
-import androidx.fragment.app.viewModels
-import androidx.preference.Preference
-import com.google.android.material.dialog.MaterialAlertDialogBuilder
-import com.google.android.material.snackbar.Snackbar
-import dagger.hilt.android.AndroidEntryPoint
-import kotlinx.coroutines.flow.StateFlow
-import org.koitharu.kotatsu.R
-import org.koitharu.kotatsu.core.exceptions.resolve.SnackbarErrorObserver
-import org.koitharu.kotatsu.core.prefs.AppSettings
-import org.koitharu.kotatsu.core.ui.BasePreferenceFragment
-import org.koitharu.kotatsu.core.ui.util.ReversibleActionObserver
-import org.koitharu.kotatsu.core.util.FileSize
-import org.koitharu.kotatsu.core.util.ext.getQuantityStringSafe
-import org.koitharu.kotatsu.core.util.ext.observe
-import org.koitharu.kotatsu.core.util.ext.observeEvent
-import org.koitharu.kotatsu.local.data.CacheDir
-
-@AndroidEntryPoint
-class StorageManageSettingsFragment : BasePreferenceFragment(R.string.storage_usage) {
-
-	private val viewModel by viewModels<StorageManageSettingsViewModel>()
-	private val loadingPrefs = HashSet<String>()
-
-	override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
-		addPreferencesFromResource(R.xml.pref_storage)
-	}
-
-	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-		super.onViewCreated(view, savedInstanceState)
-		findPreference<Preference>(AppSettings.KEY_PAGES_CACHE_CLEAR)?.bindBytesSizeSummary(checkNotNull(viewModel.cacheSizes[CacheDir.PAGES]))
-		findPreference<Preference>(AppSettings.KEY_THUMBS_CACHE_CLEAR)?.bindBytesSizeSummary(checkNotNull(viewModel.cacheSizes[CacheDir.THUMBS]))
-		findPreference<Preference>(AppSettings.KEY_HTTP_CACHE_CLEAR)?.bindBytesSizeSummary(viewModel.httpCacheSize)
-		findPreference<Preference>(AppSettings.KEY_SEARCH_HISTORY_CLEAR)?.let { pref ->
-			viewModel.searchHistoryCount.observe(viewLifecycleOwner) {
-				pref.summary = if (it < 0) {
-					view.context.getString(R.string.loading_)
-				} else {
-					pref.context.resources.getQuantityStringSafe(R.plurals.items, it, it)
-				}
-			}
-		}
-		findPreference<Preference>(AppSettings.KEY_UPDATES_FEED_CLEAR)?.let { pref ->
-			viewModel.feedItemsCount.observe(viewLifecycleOwner) {
-				pref.summary = if (it < 0) {
-					view.context.getString(R.string.loading_)
-				} else {
-					pref.context.resources.getQuantityStringSafe(R.plurals.items, it, it)
-				}
-			}
-		}
-		findPreference<StorageUsagePreference>(AppSettings.KEY_STORAGE_USAGE)?.let { pref ->
-			viewModel.storageUsage.observe(viewLifecycleOwner, pref)
-		}
-		findPreference<Preference>(AppSettings.KEY_WEBVIEW_CLEAR)?.isVisible = viewModel.isBrowserDataCleanupEnabled
-
-		viewModel.loadingKeys.observe(viewLifecycleOwner) { keys ->
-			loadingPrefs.addAll(keys)
-			loadingPrefs.forEach { prefKey ->
-				findPreference<Preference>(prefKey)?.isEnabled = prefKey !in keys
-			}
-		}
-		viewModel.onError.observeEvent(viewLifecycleOwner, SnackbarErrorObserver(listView, this))
-		viewModel.onActionDone.observeEvent(viewLifecycleOwner, ReversibleActionObserver(listView))
-		viewModel.onChaptersCleanedUp.observeEvent(viewLifecycleOwner, ::onChaptersCleanedUp)
-	}
-
-	override fun onPreferenceTreeClick(preference: Preference): Boolean = when (preference.key) {
-		AppSettings.KEY_COOKIES_CLEAR -> {
-			clearCookies()
-			true
-		}
-
-		AppSettings.KEY_SEARCH_HISTORY_CLEAR -> {
-			clearSearchHistory()
-			true
-		}
-
-		AppSettings.KEY_PAGES_CACHE_CLEAR -> {
-			viewModel.clearCache(preference.key, CacheDir.PAGES)
-			true
-		}
-
-		AppSettings.KEY_THUMBS_CACHE_CLEAR -> {
-			viewModel.clearCache(preference.key, CacheDir.THUMBS, CacheDir.FAVICONS)
-			true
-		}
-
-		AppSettings.KEY_HTTP_CACHE_CLEAR -> {
-			viewModel.clearHttpCache()
-			true
-		}
-
-		AppSettings.KEY_CHAPTERS_CLEAR -> {
-			cleanupChapters()
-			true
-		}
-
-		AppSettings.KEY_WEBVIEW_CLEAR -> {
-			viewModel.clearBrowserData()
-			true
-		}
-
-		AppSettings.KEY_CLEAR_MANGA_DATA -> {
-			viewModel.clearMangaData()
-			true
-		}
-
-		AppSettings.KEY_UPDATES_FEED_CLEAR -> {
-			viewModel.clearUpdatesFeed()
-			true
-		}
-
-		else -> super.onPreferenceTreeClick(preference)
-	}
-
-	private fun onChaptersCleanedUp(result: Pair<Int, Long>) {
-		val c = context ?: return
-		val text = if (result.first == 0 && result.second == 0L) {
-			c.getString(R.string.no_chapters_deleted)
-		} else {
-			c.getString(
-				R.string.chapters_deleted_pattern,
-				c.resources.getQuantityStringSafe(R.plurals.chapters, result.first, result.first),
-				FileSize.BYTES.format(c, result.second),
-			)
-		}
-		Snackbar.make(listView, text, Snackbar.LENGTH_SHORT).show()
-	}
-
-	private fun Preference.bindBytesSizeSummary(stateFlow: StateFlow<Long>) {
-		stateFlow.observe(viewLifecycleOwner) { size ->
-			summary = if (size < 0) {
-				context.getString(R.string.computing_)
-			} else {
-				FileSize.BYTES.format(context, size)
-			}
-		}
-	}
-
-	private fun clearSearchHistory() {
-		MaterialAlertDialogBuilder(context ?: return)
-			.setTitle(R.string.clear_search_history)
-			.setMessage(R.string.text_clear_search_history_prompt)
-			.setNegativeButton(android.R.string.cancel, null)
-			.setPositiveButton(R.string.clear) { _, _ ->
-				viewModel.clearSearchHistory()
-			}.show()
-	}
-
-	private fun clearCookies() {
-		MaterialAlertDialogBuilder(context ?: return)
-			.setTitle(R.string.clear_cookies)
-			.setMessage(R.string.text_clear_cookies_prompt)
-			.setNegativeButton(android.R.string.cancel, null)
-			.setPositiveButton(R.string.clear) { _, _ ->
-				viewModel.clearCookies()
-			}.show()
-	}
-
-	private fun cleanupChapters() {
-		MaterialAlertDialogBuilder(context ?: return)
-			.setTitle(R.string.delete_read_chapters)
-			.setMessage(R.string.delete_read_chapters_prompt)
-			.setNegativeButton(android.R.string.cancel, null)
-			.setPositiveButton(R.string.delete) { _, _ ->
-				viewModel.cleanupChapters()
-			}.show()
-	}
-}

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

@@ -1,226 +0,0 @@
-package org.koitharu.kotatsu.settings.userdata.storage
-
-import android.annotation.SuppressLint
-import android.webkit.WebStorage
-import androidx.webkit.WebStorageCompat
-import androidx.webkit.WebViewFeature
-import coil3.ImageLoader
-import dagger.hilt.android.lifecycle.HiltViewModel
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.Job
-import kotlinx.coroutines.cancelAndJoin
-import kotlinx.coroutines.flow.MutableStateFlow
-import kotlinx.coroutines.flow.update
-import kotlinx.coroutines.runInterruptible
-import okhttp3.Cache
-import org.koitharu.kotatsu.R
-import org.koitharu.kotatsu.core.network.cookies.MutableCookieJar
-import org.koitharu.kotatsu.core.parser.MangaDataRepository
-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.ext.MutableEventFlow
-import org.koitharu.kotatsu.core.util.ext.call
-import org.koitharu.kotatsu.core.util.ext.firstNotNull
-import org.koitharu.kotatsu.local.data.CacheDir
-import org.koitharu.kotatsu.local.data.LocalStorageManager
-import org.koitharu.kotatsu.local.domain.DeleteReadChaptersUseCase
-import org.koitharu.kotatsu.search.domain.MangaSearchRepository
-import org.koitharu.kotatsu.tracker.domain.TrackingRepository
-import java.util.EnumMap
-import javax.inject.Inject
-import javax.inject.Provider
-import kotlin.coroutines.resume
-import kotlin.coroutines.suspendCoroutine
-
-@HiltViewModel
-class StorageManageSettingsViewModel @Inject constructor(
-	private val storageManager: LocalStorageManager,
-	private val httpCache: Cache,
-	private val searchRepository: MangaSearchRepository,
-	private val trackingRepository: TrackingRepository,
-	private val cookieJar: MutableCookieJar,
-	private val deleteReadChaptersUseCase: DeleteReadChaptersUseCase,
-	private val mangaDataRepositoryProvider: Provider<MangaDataRepository>,
-	private val coil: ImageLoader,
-) : BaseViewModel() {
-
-	val onActionDone = MutableEventFlow<ReversibleAction>()
-	val loadingKeys = MutableStateFlow(emptySet<String>())
-
-	val searchHistoryCount = MutableStateFlow(-1)
-	val feedItemsCount = MutableStateFlow(-1)
-	val httpCacheSize = MutableStateFlow(-1L)
-	val cacheSizes = EnumMap<CacheDir, MutableStateFlow<Long>>(CacheDir::class.java)
-	val storageUsage = MutableStateFlow<StorageUsage?>(null)
-
-	val onChaptersCleanedUp = MutableEventFlow<Pair<Int, Long>>()
-
-	val isBrowserDataCleanupEnabled: Boolean
-		get() = WebViewFeature.isFeatureSupported(WebViewFeature.DELETE_BROWSING_DATA)
-
-	private var storageUsageJob: Job? = null
-
-	init {
-		CacheDir.entries.forEach {
-			cacheSizes[it] = MutableStateFlow(-1L)
-		}
-		launchJob(Dispatchers.Default) {
-			searchHistoryCount.value = searchRepository.getSearchHistoryCount()
-		}
-		launchJob(Dispatchers.Default) {
-			feedItemsCount.value = trackingRepository.getLogsCount()
-		}
-		CacheDir.entries.forEach { cache ->
-			launchJob(Dispatchers.Default) {
-				checkNotNull(cacheSizes[cache]).value = storageManager.computeCacheSize(cache)
-			}
-		}
-		launchJob(Dispatchers.Default) {
-			httpCacheSize.value = runInterruptible { httpCache.size() }
-		}
-		loadStorageUsage()
-	}
-
-	fun clearCache(key: String, vararg caches: CacheDir) {
-		launchJob(Dispatchers.Default) {
-			try {
-				loadingKeys.update { it + key }
-				for (cache in caches) {
-					storageManager.clearCache(cache)
-					checkNotNull(cacheSizes[cache]).value = storageManager.computeCacheSize(cache)
-					if (cache == CacheDir.THUMBS) {
-						coil.memoryCache?.clear()
-					}
-				}
-				loadStorageUsage()
-			} finally {
-				loadingKeys.update { it - key }
-			}
-		}
-	}
-
-	fun clearHttpCache() {
-		launchJob(Dispatchers.Default) {
-			try {
-				loadingKeys.update { it + AppSettings.KEY_HTTP_CACHE_CLEAR }
-				val size = runInterruptible(Dispatchers.IO) {
-					httpCache.evictAll()
-					httpCache.size()
-				}
-				httpCacheSize.value = size
-				loadStorageUsage()
-			} finally {
-				loadingKeys.update { it - AppSettings.KEY_HTTP_CACHE_CLEAR }
-			}
-		}
-	}
-
-	fun clearSearchHistory() {
-		launchJob(Dispatchers.Default) {
-			searchRepository.clearSearchHistory()
-			searchHistoryCount.value = searchRepository.getSearchHistoryCount()
-			onActionDone.call(ReversibleAction(R.string.search_history_cleared, null))
-		}
-	}
-
-	fun clearCookies() {
-		launchJob {
-			cookieJar.clear()
-			onActionDone.call(ReversibleAction(R.string.cookies_cleared, null))
-		}
-	}
-
-	@SuppressLint("RequiresFeature")
-	fun clearBrowserData() {
-		launchJob {
-			try {
-				loadingKeys.update { it + AppSettings.KEY_WEBVIEW_CLEAR }
-				val storage = WebStorage.getInstance()
-				suspendCoroutine { cont ->
-					WebStorageCompat.deleteBrowsingData(storage) {
-						cont.resume(Unit)
-					}
-				}
-				onActionDone.call(ReversibleAction(R.string.updates_feed_cleared, null))
-			} finally {
-				loadingKeys.update { it - AppSettings.KEY_WEBVIEW_CLEAR }
-			}
-		}
-	}
-
-	fun clearUpdatesFeed() {
-		launchJob(Dispatchers.Default) {
-			try {
-				loadingKeys.update { it + AppSettings.KEY_UPDATES_FEED_CLEAR }
-				trackingRepository.clearLogs()
-				feedItemsCount.value = trackingRepository.getLogsCount()
-				onActionDone.call(ReversibleAction(R.string.updates_feed_cleared, null))
-			} finally {
-				loadingKeys.update { it - AppSettings.KEY_UPDATES_FEED_CLEAR }
-			}
-		}
-	}
-
-	fun clearMangaData() {
-		launchJob(Dispatchers.Default) {
-			try {
-				loadingKeys.update { it + AppSettings.KEY_CLEAR_MANGA_DATA }
-				trackingRepository.gc()
-				val repository = mangaDataRepositoryProvider.get()
-				repository.cleanupLocalManga()
-				repository.cleanupDatabase()
-				onActionDone.call(ReversibleAction(R.string.updates_feed_cleared, null))
-			} finally {
-				loadingKeys.update { it - AppSettings.KEY_CLEAR_MANGA_DATA }
-			}
-		}
-	}
-
-	fun cleanupChapters() {
-		launchJob(Dispatchers.Default) {
-			try {
-				loadingKeys.update { it + AppSettings.KEY_CHAPTERS_CLEAR }
-				val oldSize = storageUsage.firstNotNull().savedManga.bytes
-				val chaptersCount = deleteReadChaptersUseCase.invoke()
-				loadStorageUsage().join()
-				val newSize = storageUsage.firstNotNull().savedManga.bytes
-				onChaptersCleanedUp.call(chaptersCount to oldSize - newSize)
-			} finally {
-				loadingKeys.update { it - AppSettings.KEY_CHAPTERS_CLEAR }
-			}
-		}
-	}
-
-	private fun loadStorageUsage(): Job {
-		val prevJob = storageUsageJob
-		return launchJob(Dispatchers.Default) {
-			prevJob?.cancelAndJoin()
-			val pagesCacheSize = storageManager.computeCacheSize(CacheDir.PAGES)
-			val otherCacheSize = storageManager.computeCacheSize() - pagesCacheSize
-			val storageSize = storageManager.computeStorageSize()
-			val availableSpace = storageManager.computeAvailableSize()
-			val totalBytes = pagesCacheSize + otherCacheSize + storageSize + availableSpace
-			storageUsage.value = StorageUsage(
-				savedManga = StorageUsage.Item(
-					bytes = storageSize,
-					percent = (storageSize.toDouble() / totalBytes).toFloat(),
-				),
-				pagesCache = StorageUsage.Item(
-					bytes = pagesCacheSize,
-					percent = (pagesCacheSize.toDouble() / totalBytes).toFloat(),
-				),
-				otherCache = StorageUsage.Item(
-					bytes = otherCacheSize,
-					percent = (otherCacheSize.toDouble() / totalBytes).toFloat(),
-				),
-				available = StorageUsage.Item(
-					bytes = availableSpace,
-					percent = (availableSpace.toDouble() / totalBytes).toFloat(),
-				),
-			)
-		}.also {
-			storageUsageJob = it
-		}
-	}
-}

app/src/main/kotlin/org/koitharu/kotatsu/stats/data/StatsDao.kt

@@ -7,8 +7,12 @@ import androidx.room.RawQuery
 import androidx.room.Upsert
 import androidx.sqlite.db.SimpleSQLiteQuery
 import androidx.sqlite.db.SupportSQLiteQuery
+import kotlinx.coroutines.currentCoroutineContext
 import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.flow
+import kotlinx.coroutines.isActive
 import org.koitharu.kotatsu.core.db.entity.MangaEntity
+import kotlin.collections.forEach
 
 @Dao
 abstract class StatsDao {
@@ -61,4 +65,19 @@ abstract class StatsDao {
 	protected abstract suspend fun getDurationStatsImpl(
 		query: SupportSQLiteQuery
 	): Map<@MapColumn("manga") MangaEntity, @MapColumn("d") Long>
+
+	@Query("SELECT * FROM stats ORDER BY started_at LIMIT :limit OFFSET :offset")
+	protected abstract suspend fun findAll(offset: Int, limit: Int): List<StatsEntity>
+	fun dumpEnabled(): Flow<StatsEntity> = flow {
+		val window = 10
+		var offset = 0
+		while (currentCoroutineContext().isActive) {
+			val list = findAll(offset, window)
+			if (list.isEmpty()) {
+				break
+			}
+			offset += window
+			list.forEach { emit(it) }
+		}
+	}
 }

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

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:tint="?colorControlNormal"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#000"
+        android:pathData="M13,2.05V5.08C16.39,5.57 19,8.47 19,12C19,12.9 18.82,13.75 18.5,14.54L21.12,16.07C21.68,14.83 22,13.45 22,12C22,6.82 18.05,2.55 13,2.05M12,19A7,7 0 0,1 5,12C5,8.47 7.61,5.57 11,5.08V2.05C5.94,2.55 2,6.81 2,12A10,10 0 0,0 12,22C15.3,22 18.23,20.39 20.05,17.91L17.45,16.38C16.17,18 14.21,19 12,19Z" />
+</vector>

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

@@ -1,57 +1,60 @@
 <?xml version="1.0" encoding="utf-8"?>
 <androidx.coordinatorlayout.widget.CoordinatorLayout
-	xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:app="http://schemas.android.com/apk/res-auto"
-	android:layout_width="match_parent"
-	android:layout_height="match_parent">
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
 
-	<com.google.android.material.appbar.AppBarLayout
-		android:id="@+id/appbar"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:fitsSystemWindows="true">
+    <com.google.android.material.appbar.AppBarLayout
+        android:id="@+id/appbar"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:fitsSystemWindows="true">
 
-		<com.google.android.material.appbar.MaterialToolbar
-			android:id="@id/toolbar"
-			android:layout_width="match_parent"
-			android:layout_height="?attr/actionBarSize"
-			app:layout_scrollFlags="noScroll">
+        <com.google.android.material.appbar.MaterialToolbar
+            android:id="@id/toolbar"
+            android:layout_width="match_parent"
+            android:layout_height="?attr/actionBarSize"
+            app:layout_scrollFlags="noScroll">
 
-		</com.google.android.material.appbar.MaterialToolbar>
+        </com.google.android.material.appbar.MaterialToolbar>
 
-	</com.google.android.material.appbar.AppBarLayout>
+    </com.google.android.material.appbar.AppBarLayout>
 
-	<androidx.recyclerview.widget.RecyclerView
-		android:id="@+id/recyclerView"
-		android:layout_width="match_parent"
-		android:layout_height="match_parent"
-		android:clipToPadding="false"
-		android:orientation="vertical"
-		android:scrollbars="vertical"
-		app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
-		app:layout_behavior="com.google.android.material.appbar.AppBarLayout$ScrollingViewBehavior" />
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/recyclerView"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:clipToPadding="false"
+        android:orientation="vertical"
+        android:paddingBottom="@dimen/list_spacing_large"
+        android:scrollbars="vertical"
+        app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
+        app:layout_behavior="com.google.android.material.appbar.AppBarLayout$ScrollingViewBehavior"
+        tools:listitem="@layout/item_storage_config2" />
 
-	<com.google.android.material.progressindicator.LinearProgressIndicator
-		android:id="@+id/progressBar"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:indeterminate="true"
-		android:visibility="gone"
-		app:layout_anchor="@id/appbar"
-		app:layout_anchorGravity="bottom" />
+    <com.google.android.material.progressindicator.LinearProgressIndicator
+        android:id="@+id/progressBar"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:indeterminate="true"
+        android:visibility="gone"
+        app:layout_anchor="@id/appbar"
+        app:layout_anchorGravity="bottom" />
 
-	<com.google.android.material.floatingactionbutton.ExtendedFloatingActionButton
-		android:id="@+id/fab_add"
-		android:layout_width="wrap_content"
-		android:layout_height="wrap_content"
-		android:layout_margin="16dp"
-		android:contentDescription="@string/pick_custom_directory"
-		android:text="@string/add"
-		app:fabSize="normal"
-		app:icon="@drawable/ic_add"
-		app:layout_anchor="@id/recyclerView"
-		app:layout_anchorGravity="bottom|end"
-		app:layout_behavior="org.koitharu.kotatsu.core.ui.util.ShrinkOnScrollBehavior"
-		app:layout_dodgeInsetEdges="bottom" />
+    <com.google.android.material.floatingactionbutton.ExtendedFloatingActionButton
+        android:id="@+id/fab_add"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_margin="16dp"
+        android:contentDescription="@string/pick_custom_directory"
+        android:text="@string/add"
+        app:fabSize="normal"
+        app:icon="@drawable/ic_add"
+        app:layout_anchor="@id/recyclerView"
+        app:layout_anchorGravity="bottom|end"
+        app:layout_behavior="org.koitharu.kotatsu.core.ui.util.ShrinkOnScrollBehavior"
+        app:layout_dodgeInsetEdges="bottom" />
 
 </androidx.coordinatorlayout.widget.CoordinatorLayout>

app/src/main/res/layout/item_storage_config2.xml

@@ -0,0 +1,93 @@
+<?xml version="1.0" encoding="utf-8"?>
+<com.google.android.material.card.MaterialCardView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    tools:layout_margin="@dimen/screen_padding">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        android:paddingBottom="@dimen/margin_small">
+
+        <TextView
+            android:id="@+id/textView_title"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginHorizontal="@dimen/screen_padding"
+            android:layout_marginTop="@dimen/screen_padding"
+            android:ellipsize="end"
+            android:singleLine="true"
+            android:textAppearance="?attr/textAppearanceTitleMedium"
+            tools:text="@tools:sample/lorem[3]" />
+
+        <TextView
+            android:id="@+id/textView_subtitle"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginHorizontal="@dimen/screen_padding"
+            android:layout_marginTop="@dimen/margin_small"
+            android:textAppearance="?attr/textAppearanceBodyMedium"
+            tools:text="@tools:sample/lorem[5]" />
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginHorizontal="@dimen/screen_padding"
+            android:layout_marginTop="@dimen/screen_padding"
+            android:baselineAligned="false"
+            android:gravity="center_vertical"
+            android:orientation="horizontal">
+
+            <TextView
+                android:id="@+id/textView_size"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_marginEnd="@dimen/margin_small"
+                android:layout_weight="1"
+                android:singleLine="true"
+                android:textAppearance="?attr/textAppearanceBodyMedium"
+                android:textColor="?android:textColorSecondary"
+                tools:text="250MB / 10GB" />
+
+            <com.google.android.material.progressindicator.LinearProgressIndicator
+                android:id="@+id/indicator_size"
+                android:layout_width="160dp"
+                android:layout_height="wrap_content"
+                app:trackCornerRadius="5dp"
+                app:trackThickness="10dp"
+                tools:progress="40" />
+
+        </LinearLayout>
+
+        <TextView
+            android:id="@+id/textView_info"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginHorizontal="@dimen/screen_padding"
+            android:layout_marginTop="@dimen/margin_small"
+            android:textAppearance="?attr/textAppearanceBodySmall"
+            android:textColor="?android:textColorSecondary"
+            tools:text="Content will be removed within application" />
+
+        <Button
+            android:id="@+id/button_remove"
+            style="?buttonBarButtonStyle"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="end"
+            android:layout_marginEnd="@dimen/margin_small"
+            android:text="@string/remove" />
+
+        <View
+            android:id="@+id/spacer"
+            android:layout_width="match_parent"
+            android:layout_height="@dimen/margin_small"
+            tools:visibility="gone" />
+
+    </LinearLayout>
+
+</com.google.android.material.card.MaterialCardView>

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

@@ -42,7 +42,7 @@
 				android:importantForAutofill="no"
 				android:minHeight="48dp" />
 
-			<ImageView
+			<ImageButton
 				android:id="@+id/dropdown"
 				android:layout_width="48dp"
 				android:layout_height="48dp"

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

@@ -1,82 +1,88 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout
-	xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:app="http://schemas.android.com/apk/res-auto"
-	android:layout_width="match_parent"
-	android:layout_height="match_parent"
-	android:orientation="vertical">
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
 
-	<org.koitharu.kotatsu.core.ui.sheet.AdaptiveSheetHeaderBar
-		android:id="@+id/headerBar"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		app:title="@string/chapters" />
+    <org.koitharu.kotatsu.core.ui.sheet.AdaptiveSheetHeaderBar
+        android:id="@+id/headerBar"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        app:title="@string/chapters" />
 
-	<com.google.android.material.appbar.MaterialToolbar
-		android:id="@+id/toolbar"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content">
+    <com.google.android.material.appbar.MaterialToolbar
+        android:id="@+id/toolbar"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
 
-		<LinearLayout
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:layout_marginEnd="8dp"
-			android:baselineAligned="false"
-			android:orientation="horizontal">
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginEnd="8dp"
+            android:baselineAligned="false"
+            android:orientation="horizontal">
 
-			<com.google.android.material.tabs.TabLayout
-				android:id="@+id/tabs"
-				style="?tabSecondaryStyle"
-				android:layout_width="0dp"
-				android:layout_height="wrap_content"
-				android:layout_gravity="start|center_vertical"
-				android:layout_weight="1"
-				android:background="@null"
-				app:tabGravity="start"
-				app:tabIndicator="@drawable/bg_tab_pill"
-				app:tabIndicatorAnimationMode="fade"
-				app:tabIndicatorColor="?colorSurfaceDim"
-				app:tabIndicatorFullWidth="true"
-				app:tabIndicatorGravity="stretch"
-				app:tabInlineLabel="true"
-				app:tabMinWidth="0dp"
-				app:tabMode="scrollable"
-				app:tabUnboundedRipple="true" />
+            <com.google.android.material.tabs.TabLayout
+                android:id="@+id/tabs"
+                style="?tabSecondaryStyle"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_gravity="start|center_vertical"
+                android:layout_weight="1"
+                android:background="@null"
+                app:tabGravity="start"
+                app:tabIndicator="@drawable/bg_tab_pill"
+                app:tabIndicatorAnimationMode="fade"
+                app:tabIndicatorColor="?colorSurfaceDim"
+                app:tabIndicatorFullWidth="true"
+                app:tabIndicatorGravity="stretch"
+                app:tabInlineLabel="true"
+                app:tabMinWidth="0dp"
+                app:tabMode="scrollable"
+                app:tabUnboundedRipple="true" />
 
-			<com.google.android.material.button.MaterialSplitButton
-				android:id="@+id/split_button_read"
-				android:layout_width="wrap_content"
-				android:layout_height="wrap_content"
-				android:layout_gravity="end|center_vertical"
-				android:paddingTop="0dp"
-				android:paddingBottom="0dp">
+            <com.google.android.material.button.MaterialSplitButton
+                android:id="@+id/split_button_read"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_gravity="end|center_vertical"
+                android:paddingTop="0dp"
+                android:paddingBottom="0dp">
 
-				<Button
-					android:id="@+id/button_read"
-					style="?materialSplitButtonLeadingFilledStyle"
-					android:layout_width="wrap_content"
-					android:layout_height="wrap_content"
-					android:minWidth="@dimen/read_button_min_width"
-					android:text="@string/read" />
+                <Button
+                    android:id="@+id/button_read"
+                    style="?materialSplitButtonLeadingFilledStyle"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:minWidth="@dimen/read_button_min_width"
+                    android:text="@string/read" />
 
-				<Button
-					android:id="@+id/button_read_menu"
-					style="?materialSplitButtonIconFilledStyle"
-					android:layout_width="wrap_content"
-					android:layout_height="wrap_content"
-					android:contentDescription="@string/show_menu"
-					app:icon="?expandCollapseIndicator"
-					app:toggleCheckedStateOnClick="false" />
+                <Button
+                    android:id="@+id/button_read_menu"
+                    style="?materialSplitButtonIconFilledStyle"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:contentDescription="@string/show_menu"
+                    app:icon="?expandCollapseIndicator"
+                    app:toggleCheckedStateOnClick="false" />
 
-			</com.google.android.material.button.MaterialSplitButton>
+            </com.google.android.material.button.MaterialSplitButton>
 
-		</LinearLayout>
+        </LinearLayout>
 
-	</com.google.android.material.appbar.MaterialToolbar>
+    </com.google.android.material.appbar.MaterialToolbar>
 
-	<androidx.viewpager2.widget.ViewPager2
-		android:id="@+id/pager"
-		android:layout_width="match_parent"
-		android:layout_height="match_parent" />
+    <org.koitharu.kotatsu.core.ui.widgets.TouchBlockLayout
+        android:id="@+id/layout_touchBlock"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <androidx.viewpager2.widget.ViewPager2
+            android:id="@+id/pager"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent" />
+    </org.koitharu.kotatsu.core.ui.widgets.TouchBlockLayout>
 
 </LinearLayout>

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

@@ -1,257 +1,330 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout
-	xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:app="http://schemas.android.com/apk/res-auto"
-	xmlns:tools="http://schemas.android.com/tools"
-	android:layout_width="match_parent"
-	android:layout_height="wrap_content"
-	android:orientation="vertical">
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical">
 
-	<org.koitharu.kotatsu.core.ui.sheet.AdaptiveSheetHeaderBar
-		android:id="@+id/headerBar"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		app:title="@string/filter" />
+    <org.koitharu.kotatsu.core.ui.sheet.AdaptiveSheetHeaderBar
+        android:id="@+id/headerBar"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        app:title="@string/filter" />
 
-	<androidx.core.widget.NestedScrollView
-		android:id="@+id/scrollView"
-		android:layout_width="match_parent"
-		android:layout_height="match_parent"
-		android:clipToPadding="false"
-		android:scrollIndicators="top"
-		tools:ignore="UnusedAttribute">
+    <androidx.core.widget.NestedScrollView
+        android:id="@+id/scrollView"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="1"
+        android:clipToPadding="false"
+        android:fillViewport="true"
+        android:scrollIndicators="top|bottom"
+        tools:ignore="UnusedAttribute">
 
-		<LinearLayout
-			android:id="@+id/layout_body"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:orientation="vertical"
-			android:paddingHorizontal="@dimen/margin_small"
-			android:paddingBottom="@dimen/margin_normal">
+        <LinearLayout
+            android:id="@+id/layout_body"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="vertical"
+            android:paddingHorizontal="@dimen/margin_small"
+            android:paddingBottom="@dimen/margin_normal">
 
-			<org.koitharu.kotatsu.filter.ui.FilterFieldLayout
-				android:id="@+id/layout_order"
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				app:title="@string/sort_order">
+            <org.koitharu.kotatsu.filter.ui.FilterFieldLayout
+                android:id="@+id/layout_order"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                app:title="@string/sort_order">
 
-				<com.google.android.material.card.MaterialCardView
-					android:id="@+id/card_order"
-					style="?materialCardViewOutlinedStyle"
-					android:layout_width="match_parent"
-					android:layout_height="wrap_content"
-					android:layout_marginHorizontal="@dimen/margin_small"
-					android:layout_marginTop="@dimen/margin_small">
+                <com.google.android.material.card.MaterialCardView
+                    android:id="@+id/card_order"
+                    style="?materialCardViewOutlinedStyle"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginHorizontal="@dimen/margin_small"
+                    android:layout_marginTop="@dimen/margin_small">
 
-					<Spinner
-						android:id="@+id/spinner_order"
-						android:layout_width="match_parent"
-						android:layout_height="@dimen/spinner_height"
-						android:minHeight="?listPreferredItemHeightSmall"
-						android:paddingHorizontal="8dp" />
+                    <Spinner
+                        android:id="@+id/spinner_order"
+                        android:layout_width="match_parent"
+                        android:layout_height="@dimen/spinner_height"
+                        android:minHeight="?listPreferredItemHeightSmall"
+                        android:paddingHorizontal="8dp" />
 
-				</com.google.android.material.card.MaterialCardView>
+                </com.google.android.material.card.MaterialCardView>
 
-			</org.koitharu.kotatsu.filter.ui.FilterFieldLayout>
+            </org.koitharu.kotatsu.filter.ui.FilterFieldLayout>
 
-			<org.koitharu.kotatsu.filter.ui.FilterFieldLayout
-				android:id="@+id/layout_locale"
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				android:layout_marginTop="@dimen/margin_small"
-				app:title="@string/language">
+            <org.koitharu.kotatsu.filter.ui.FilterFieldLayout
+                android:id="@+id/layout_saved_filters"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="@dimen/margin_small"
+                app:title="@string/saved_filters">
 
-				<com.google.android.material.card.MaterialCardView
-					android:id="@+id/card_locale"
-					style="?materialCardViewOutlinedStyle"
-					android:layout_width="match_parent"
-					android:layout_height="wrap_content"
-					android:layout_marginHorizontal="@dimen/margin_small"
-					android:layout_marginTop="@dimen/margin_small">
+                <org.koitharu.kotatsu.core.ui.widgets.ChipsView
+                    android:id="@+id/chips_saved_filters"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginHorizontal="@dimen/margin_small"
+                    android:layout_marginTop="@dimen/margin_small"
+                    app:chipStyle="@style/Widget.Kotatsu.Chip.Filter" />
 
-					<Spinner
-						android:id="@+id/spinner_locale"
-						android:layout_width="match_parent"
-						android:layout_height="@dimen/spinner_height"
-						android:minHeight="?listPreferredItemHeightSmall"
-						android:paddingHorizontal="8dp"
-						android:popupBackground="@drawable/m3_spinner_popup_background" />
+            </org.koitharu.kotatsu.filter.ui.FilterFieldLayout>
 
-				</com.google.android.material.card.MaterialCardView>
+            <org.koitharu.kotatsu.filter.ui.FilterFieldLayout
+                android:id="@+id/layout_locale"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="@dimen/margin_small"
+                app:title="@string/language">
 
-			</org.koitharu.kotatsu.filter.ui.FilterFieldLayout>
+                <com.google.android.material.card.MaterialCardView
+                    android:id="@+id/card_locale"
+                    style="?materialCardViewOutlinedStyle"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginHorizontal="@dimen/margin_small"
+                    android:layout_marginTop="@dimen/margin_small">
 
-			<org.koitharu.kotatsu.filter.ui.FilterFieldLayout
-				android:id="@+id/layout_original_locale"
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				android:layout_marginTop="@dimen/margin_small"
-				app:title="@string/original_language">
+                    <Spinner
+                        android:id="@+id/spinner_locale"
+                        android:layout_width="match_parent"
+                        android:layout_height="@dimen/spinner_height"
+                        android:minHeight="?listPreferredItemHeightSmall"
+                        android:paddingHorizontal="8dp"
+                        android:popupBackground="@drawable/m3_spinner_popup_background" />
 
-				<com.google.android.material.card.MaterialCardView
-					android:id="@+id/card_original_locale"
-					style="?materialCardViewOutlinedStyle"
-					android:layout_width="match_parent"
-					android:layout_height="wrap_content"
-					android:layout_marginHorizontal="@dimen/margin_small"
-					android:layout_marginTop="@dimen/margin_small">
+                </com.google.android.material.card.MaterialCardView>
 
-					<Spinner
-						android:id="@+id/spinner_original_locale"
-						android:layout_width="match_parent"
-						android:layout_height="@dimen/spinner_height"
-						android:minHeight="?listPreferredItemHeightSmall"
-						android:paddingHorizontal="8dp"
-						android:popupBackground="@drawable/m3_spinner_popup_background" />
+            </org.koitharu.kotatsu.filter.ui.FilterFieldLayout>
 
-				</com.google.android.material.card.MaterialCardView>
+            <org.koitharu.kotatsu.filter.ui.FilterFieldLayout
+                android:id="@+id/layout_original_locale"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="@dimen/margin_small"
+                app:title="@string/original_language">
 
-			</org.koitharu.kotatsu.filter.ui.FilterFieldLayout>
+                <com.google.android.material.card.MaterialCardView
+                    android:id="@+id/card_original_locale"
+                    style="?materialCardViewOutlinedStyle"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginHorizontal="@dimen/margin_small"
+                    android:layout_marginTop="@dimen/margin_small">
 
-			<org.koitharu.kotatsu.filter.ui.FilterFieldLayout
-				android:id="@+id/layout_genres"
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				android:layout_marginTop="@dimen/margin_small"
-				app:showMoreButton="true"
-				app:title="@string/genres">
+                    <Spinner
+                        android:id="@+id/spinner_original_locale"
+                        android:layout_width="match_parent"
+                        android:layout_height="@dimen/spinner_height"
+                        android:minHeight="?listPreferredItemHeightSmall"
+                        android:paddingHorizontal="8dp"
+                        android:popupBackground="@drawable/m3_spinner_popup_background" />
 
-				<org.koitharu.kotatsu.core.ui.widgets.ChipsView
-					android:id="@+id/chips_genres"
-					android:layout_width="match_parent"
-					android:layout_height="wrap_content"
-					android:layout_marginHorizontal="@dimen/margin_small"
-					android:layout_marginTop="@dimen/margin_small"
-					app:chipStyle="@style/Widget.Kotatsu.Chip.Filter" />
+                </com.google.android.material.card.MaterialCardView>
 
-			</org.koitharu.kotatsu.filter.ui.FilterFieldLayout>
+            </org.koitharu.kotatsu.filter.ui.FilterFieldLayout>
 
-			<org.koitharu.kotatsu.filter.ui.FilterFieldLayout
-				android:id="@+id/layout_genresExclude"
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				android:layout_marginTop="@dimen/margin_small"
-				app:showMoreButton="true"
-				app:title="@string/genres_exclude">
+            <org.koitharu.kotatsu.filter.ui.FilterFieldLayout
+                android:id="@+id/layout_genres"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="@dimen/margin_small"
+                app:showMoreButton="true"
+                app:title="@string/genres">
 
-				<org.koitharu.kotatsu.core.ui.widgets.ChipsView
-					android:id="@+id/chips_genresExclude"
-					android:layout_width="match_parent"
-					android:layout_height="wrap_content"
-					android:layout_marginHorizontal="@dimen/margin_small"
-					android:layout_marginTop="@dimen/margin_small"
-					app:chipStyle="@style/Widget.Kotatsu.Chip.Filter" />
+                <org.koitharu.kotatsu.core.ui.widgets.ChipsView
+                    android:id="@+id/chips_genres"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginHorizontal="@dimen/margin_small"
+                    android:layout_marginTop="@dimen/margin_small"
+                    app:chipStyle="@style/Widget.Kotatsu.Chip.Filter" />
 
-			</org.koitharu.kotatsu.filter.ui.FilterFieldLayout>
+            </org.koitharu.kotatsu.filter.ui.FilterFieldLayout>
 
-			<org.koitharu.kotatsu.filter.ui.FilterFieldLayout
-				android:id="@+id/layout_types"
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				android:layout_marginTop="@dimen/margin_small"
-				app:title="@string/type">
+            <org.koitharu.kotatsu.filter.ui.FilterFieldLayout
+                android:id="@+id/layout_genresExclude"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="@dimen/margin_small"
+                app:showMoreButton="true"
+                app:title="@string/genres_exclude">
 
-				<org.koitharu.kotatsu.core.ui.widgets.ChipsView
-					android:id="@+id/chips_types"
-					android:layout_width="match_parent"
-					android:layout_height="wrap_content"
-					android:layout_marginHorizontal="@dimen/margin_small"
-					android:layout_marginTop="@dimen/margin_small"
-					app:chipStyle="@style/Widget.Kotatsu.Chip.Filter" />
+                <org.koitharu.kotatsu.core.ui.widgets.ChipsView
+                    android:id="@+id/chips_genresExclude"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginHorizontal="@dimen/margin_small"
+                    android:layout_marginTop="@dimen/margin_small"
+                    app:chipStyle="@style/Widget.Kotatsu.Chip.Filter" />
 
-			</org.koitharu.kotatsu.filter.ui.FilterFieldLayout>
+            </org.koitharu.kotatsu.filter.ui.FilterFieldLayout>
 
-			<org.koitharu.kotatsu.filter.ui.FilterFieldLayout
-				android:id="@+id/layout_state"
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				android:layout_marginTop="@dimen/margin_small"
-				app:title="@string/state">
+            <org.koitharu.kotatsu.filter.ui.FilterFieldLayout
+                android:id="@+id/layout_author"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="@dimen/margin_small"
+                app:showMoreButton="false"
+                app:title="@string/author">
 
-				<org.koitharu.kotatsu.core.ui.widgets.ChipsView
-					android:id="@+id/chips_state"
-					android:layout_width="match_parent"
-					android:layout_height="wrap_content"
-					android:layout_marginHorizontal="@dimen/margin_small"
-					android:layout_marginTop="@dimen/margin_small"
-					app:chipStyle="@style/Widget.Kotatsu.Chip.Filter" />
+                <org.koitharu.kotatsu.core.ui.widgets.ChipsView
+                    android:id="@+id/chips_author"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginHorizontal="@dimen/margin_small"
+                    android:layout_marginTop="@dimen/margin_small"
+                    app:chipStyle="@style/Widget.Kotatsu.Chip.Filter" />
 
-			</org.koitharu.kotatsu.filter.ui.FilterFieldLayout>
+            </org.koitharu.kotatsu.filter.ui.FilterFieldLayout>
 
-			<org.koitharu.kotatsu.filter.ui.FilterFieldLayout
-				android:id="@+id/layout_contentRating"
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				android:layout_marginTop="@dimen/margin_small"
-				app:title="@string/content_rating">
+            <org.koitharu.kotatsu.filter.ui.FilterFieldLayout
+                android:id="@+id/layout_types"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="@dimen/margin_small"
+                app:title="@string/type">
 
-				<org.koitharu.kotatsu.core.ui.widgets.ChipsView
-					android:id="@+id/chips_contentRating"
-					android:layout_width="match_parent"
-					android:layout_height="wrap_content"
-					android:layout_marginHorizontal="@dimen/margin_small"
-					android:layout_marginTop="@dimen/margin_small"
-					app:chipStyle="@style/Widget.Kotatsu.Chip.Filter" />
+                <org.koitharu.kotatsu.core.ui.widgets.ChipsView
+                    android:id="@+id/chips_types"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginHorizontal="@dimen/margin_small"
+                    android:layout_marginTop="@dimen/margin_small"
+                    app:chipStyle="@style/Widget.Kotatsu.Chip.Filter" />
 
-			</org.koitharu.kotatsu.filter.ui.FilterFieldLayout>
+            </org.koitharu.kotatsu.filter.ui.FilterFieldLayout>
 
-			<org.koitharu.kotatsu.filter.ui.FilterFieldLayout
-				android:id="@+id/layout_demographics"
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				android:layout_marginTop="@dimen/margin_small"
-				app:title="@string/demographics">
+            <org.koitharu.kotatsu.filter.ui.FilterFieldLayout
+                android:id="@+id/layout_state"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="@dimen/margin_small"
+                app:title="@string/state">
 
-				<org.koitharu.kotatsu.core.ui.widgets.ChipsView
-					android:id="@+id/chips_demographics"
-					android:layout_width="match_parent"
-					android:layout_height="wrap_content"
-					android:layout_marginHorizontal="@dimen/margin_small"
-					android:layout_marginTop="@dimen/margin_small"
-					app:chipStyle="@style/Widget.Kotatsu.Chip.Filter" />
+                <org.koitharu.kotatsu.core.ui.widgets.ChipsView
+                    android:id="@+id/chips_state"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginHorizontal="@dimen/margin_small"
+                    android:layout_marginTop="@dimen/margin_small"
+                    app:chipStyle="@style/Widget.Kotatsu.Chip.Filter" />
 
-			</org.koitharu.kotatsu.filter.ui.FilterFieldLayout>
+            </org.koitharu.kotatsu.filter.ui.FilterFieldLayout>
 
-			<org.koitharu.kotatsu.filter.ui.FilterFieldLayout
-				android:id="@+id/layout_year"
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				android:layout_marginTop="@dimen/margin_small"
-				app:title="@string/year">
+            <org.koitharu.kotatsu.filter.ui.FilterFieldLayout
+                android:id="@+id/layout_contentRating"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="@dimen/margin_small"
+                app:title="@string/content_rating">
 
-				<com.google.android.material.slider.Slider
-					android:id="@+id/slider_year"
-					android:layout_width="match_parent"
-					android:layout_height="wrap_content"
-					android:stepSize="1"
-					app:labelBehavior="gone"
-					app:tickVisible="true"
-					tools:value="2020"
-					tools:valueFrom="1900"
-					tools:valueTo="2090" />
+                <org.koitharu.kotatsu.core.ui.widgets.ChipsView
+                    android:id="@+id/chips_contentRating"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginHorizontal="@dimen/margin_small"
+                    android:layout_marginTop="@dimen/margin_small"
+                    app:chipStyle="@style/Widget.Kotatsu.Chip.Filter" />
 
-			</org.koitharu.kotatsu.filter.ui.FilterFieldLayout>
+            </org.koitharu.kotatsu.filter.ui.FilterFieldLayout>
 
-			<org.koitharu.kotatsu.filter.ui.FilterFieldLayout
-				android:id="@+id/layout_yearsRange"
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				android:layout_marginTop="@dimen/margin_small"
-				app:title="@string/years">
+            <org.koitharu.kotatsu.filter.ui.FilterFieldLayout
+                android:id="@+id/layout_demographics"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="@dimen/margin_small"
+                app:title="@string/demographics">
 
-				<com.google.android.material.slider.RangeSlider
-					android:id="@+id/slider_yearsRange"
-					android:layout_width="match_parent"
-					android:layout_height="wrap_content"
-					android:layout_marginTop="@dimen/margin_normal"
-					android:stepSize="1"
-					app:labelBehavior="gone"
-					app:tickVisible="true"
-					tools:valueFrom="1900"
-					tools:valueTo="2090" />
+                <org.koitharu.kotatsu.core.ui.widgets.ChipsView
+                    android:id="@+id/chips_demographics"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginHorizontal="@dimen/margin_small"
+                    android:layout_marginTop="@dimen/margin_small"
+                    app:chipStyle="@style/Widget.Kotatsu.Chip.Filter" />
 
-			</org.koitharu.kotatsu.filter.ui.FilterFieldLayout>
+            </org.koitharu.kotatsu.filter.ui.FilterFieldLayout>
+
+            <org.koitharu.kotatsu.filter.ui.FilterFieldLayout
+                android:id="@+id/layout_year"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="@dimen/margin_small"
+                app:title="@string/year">
+
+                <com.google.android.material.slider.Slider
+                    android:id="@+id/slider_year"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:stepSize="1"
+                    app:labelBehavior="gone"
+                    app:tickVisible="true"
+                    tools:value="2020"
+                    tools:valueFrom="1900"
+                    tools:valueTo="2090" />
+
+            </org.koitharu.kotatsu.filter.ui.FilterFieldLayout>
+
+            <org.koitharu.kotatsu.filter.ui.FilterFieldLayout
+                android:id="@+id/layout_yearsRange"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="@dimen/margin_small"
+                app:title="@string/years">
+
+                <com.google.android.material.slider.RangeSlider
+                    android:id="@+id/slider_yearsRange"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="@dimen/margin_normal"
+                    android:stepSize="1"
+                    app:labelBehavior="gone"
+                    app:tickVisible="true"
+                    tools:valueFrom="1900"
+                    tools:valueTo="2090" />
+
+            </org.koitharu.kotatsu.filter.ui.FilterFieldLayout>
+
+        </LinearLayout>
+    </androidx.core.widget.NestedScrollView>
+
+    <com.google.android.material.dockedtoolbar.DockedToolbarLayout
+        android:id="@+id/docked_toolbar"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:fitsSystemWindows="false">
+
+        <LinearLayout
+            android:id="@+id/layout_bottom"
+            android:layout_width="match_parent"
+            android:layout_height="@dimen/m3_comp_toolbar_docked_container_height"
+            android:gravity="center_vertical">
+
+            <com.google.android.material.button.MaterialButton
+                android:id="@+id/button_save"
+                style="?materialButtonOutlinedStyle"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_marginEnd="@dimen/margin_small"
+                android:layout_weight="1"
+                android:enabled="false"
+                android:text="@string/save"
+                tools:enabled="true" />
+
+            <com.google.android.material.button.MaterialButton
+                android:id="@+id/button_done"
+                style="?materialButtonTonalStyle"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_marginStart="@dimen/margin_small"
+                android:layout_weight="1"
+                android:text="@string/done" />
+
+        </LinearLayout>
+    </com.google.android.material.dockedtoolbar.DockedToolbarLayout>
 
-		</LinearLayout>
-	</androidx.core.widget.NestedScrollView>
 </LinearLayout>

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

@@ -1,216 +1,218 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout
-	xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:app="http://schemas.android.com/apk/res-auto"
-	xmlns:tools="http://schemas.android.com/tools"
-	android:layout_width="match_parent"
-	android:layout_height="wrap_content"
-	android:orientation="vertical">
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical">
 
-	<org.koitharu.kotatsu.core.ui.sheet.AdaptiveSheetHeaderBar
-		android:id="@+id/headerBar"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		app:title="@string/options" />
+    <org.koitharu.kotatsu.core.ui.sheet.AdaptiveSheetHeaderBar
+        android:id="@+id/headerBar"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        app:title="@string/options" />
 
-	<androidx.core.widget.NestedScrollView
-		android:id="@+id/scrollView"
-		android:layout_width="match_parent"
-		android:layout_height="wrap_content"
-		android:clipToPadding="false"
-		android:scrollIndicators="top">
+    <androidx.core.widget.NestedScrollView
+        android:id="@+id/scrollView"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:clipToPadding="false"
+        android:scrollIndicators="top">
 
-		<LinearLayout
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:orientation="vertical"
-			android:paddingBottom="@dimen/margin_normal">
+        <LinearLayout
+            android:id="@+id/layout_main"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="vertical"
+            android:paddingBottom="@dimen/margin_normal">
 
-			<org.koitharu.kotatsu.core.ui.widgets.ListItemTextView
-				android:id="@+id/button_save_page"
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				android:text="@string/save_page"
-				app:drawableStartCompat="@drawable/ic_save" />
+            <org.koitharu.kotatsu.core.ui.widgets.ListItemTextView
+                android:id="@+id/button_save_page"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:text="@string/save_page"
+                app:drawableStartCompat="@drawable/ic_save" />
 
-			<org.koitharu.kotatsu.core.ui.widgets.ListItemTextView
-				android:id="@+id/button_bookmark"
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				android:text="@string/bookmark_add"
-				app:drawableStartCompat="@drawable/ic_bookmark" />
+            <org.koitharu.kotatsu.core.ui.widgets.ListItemTextView
+                android:id="@+id/button_bookmark"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:text="@string/bookmark_add"
+                app:drawableStartCompat="@drawable/ic_bookmark" />
 
-			<org.koitharu.kotatsu.core.ui.widgets.ListItemTextView
-				android:id="@+id/button_image_server"
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				android:drawableEnd="@drawable/ic_expand_more_22px"
-				android:text="@string/image_server"
-				android:visibility="gone"
-				app:drawableStartCompat="@drawable/ic_images"
-				tools:visibility="visible" />
+            <org.koitharu.kotatsu.core.ui.widgets.ListItemTextView
+                android:id="@+id/button_image_server"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:drawableEnd="@drawable/ic_expand_more_22px"
+                android:text="@string/image_server"
+                android:visibility="gone"
+                app:drawableStartCompat="@drawable/ic_images"
+                tools:visibility="visible" />
 
-			<TextView
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				android:layout_marginHorizontal="@dimen/margin_normal"
-				android:layout_marginTop="@dimen/margin_normal"
-				android:text="@string/read_mode"
-				android:textAppearance="?textAppearanceTitleSmall" />
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginHorizontal="@dimen/margin_normal"
+                android:layout_marginTop="@dimen/margin_normal"
+                android:text="@string/read_mode"
+                android:textAppearance="?textAppearanceTitleSmall" />
 
-			<com.google.android.material.button.MaterialButtonToggleGroup
-				android:id="@+id/checkableGroup"
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				android:layout_marginHorizontal="@dimen/margin_normal"
-				android:layout_marginTop="@dimen/margin_small"
-				android:baselineAligned="false"
-				android:orientation="horizontal"
-				app:selectionRequired="true"
-				app:singleSelection="true">
+            <com.google.android.material.button.MaterialButtonToggleGroup
+                android:id="@+id/checkableGroup"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginHorizontal="@dimen/margin_normal"
+                android:layout_marginTop="@dimen/margin_small"
+                android:baselineAligned="false"
+                android:orientation="horizontal"
+                app:selectionRequired="true"
+                app:singleSelection="true">
 
-				<com.google.android.material.button.MaterialButton
-					android:id="@+id/button_standard"
-					style="@style/Widget.Kotatsu.ToggleButton.Vertical"
-					android:layout_width="0dp"
-					android:layout_height="wrap_content"
-					android:layout_weight="1"
-					android:text="@string/standard"
-					app:icon="@drawable/ic_reader_ltr" />
+                <com.google.android.material.button.MaterialButton
+                    android:id="@+id/button_standard"
+                    style="@style/Widget.Kotatsu.ToggleButton.Vertical"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="@string/standard"
+                    app:icon="@drawable/ic_reader_ltr" />
 
-				<com.google.android.material.button.MaterialButton
-					android:id="@+id/button_reversed"
-					style="@style/Widget.Kotatsu.ToggleButton.Vertical"
-					android:layout_width="0dp"
-					android:layout_height="wrap_content"
-					android:layout_weight="1"
-					android:text="@string/right_to_left"
-					app:icon="@drawable/ic_reader_rtl" />
+                <com.google.android.material.button.MaterialButton
+                    android:id="@+id/button_reversed"
+                    style="@style/Widget.Kotatsu.ToggleButton.Vertical"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="@string/right_to_left"
+                    app:icon="@drawable/ic_reader_rtl" />
 
-				<com.google.android.material.button.MaterialButton
-					android:id="@+id/button_vertical"
-					style="@style/Widget.Kotatsu.ToggleButton.Vertical"
-					android:layout_width="0dp"
-					android:layout_height="wrap_content"
-					android:layout_weight="1"
-					android:text="@string/vertical"
-					app:icon="@drawable/ic_reader_vertical" />
+                <com.google.android.material.button.MaterialButton
+                    android:id="@+id/button_vertical"
+                    style="@style/Widget.Kotatsu.ToggleButton.Vertical"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="@string/vertical"
+                    app:icon="@drawable/ic_reader_vertical" />
 
-				<com.google.android.material.button.MaterialButton
-					android:id="@+id/button_webtoon"
-					style="@style/Widget.Kotatsu.ToggleButton.Vertical"
-					android:layout_width="0dp"
-					android:layout_height="wrap_content"
-					android:layout_weight="1"
-					android:text="@string/webtoon"
-					app:icon="@drawable/ic_script" />
+                <com.google.android.material.button.MaterialButton
+                    android:id="@+id/button_webtoon"
+                    style="@style/Widget.Kotatsu.ToggleButton.Vertical"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:text="@string/webtoon"
+                    app:icon="@drawable/ic_script" />
 
-			</com.google.android.material.button.MaterialButtonToggleGroup>
+            </com.google.android.material.button.MaterialButtonToggleGroup>
 
-			<TextView
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				android:layout_marginHorizontal="@dimen/margin_normal"
-				android:layout_marginTop="@dimen/margin_small"
-				android:text="@string/reader_mode_hint"
-				android:textAppearance="?attr/textAppearanceBodySmall" />
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginHorizontal="@dimen/margin_normal"
+                android:layout_marginTop="@dimen/margin_small"
+                android:text="@string/reader_mode_hint"
+                android:textAppearance="?attr/textAppearanceBodySmall" />
 
-			<com.google.android.material.materialswitch.MaterialSwitch
-				android:id="@+id/switch_double_reader"
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				android:layout_marginTop="@dimen/margin_normal"
-				android:drawablePadding="?android:listPreferredItemPaddingStart"
-				android:minHeight="?android:listPreferredItemHeightSmall"
-				android:paddingStart="?android:listPreferredItemPaddingStart"
-				android:paddingEnd="?android:listPreferredItemPaddingEnd"
-				android:text="@string/use_two_pages_landscape"
-				android:textAppearance="?textAppearanceListItem"
-				android:textColor="?colorOnSurfaceVariant"
-				app:drawableStartCompat="@drawable/ic_split_horizontal" />
+            <com.google.android.material.materialswitch.MaterialSwitch
+                android:id="@+id/switch_double_reader"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="@dimen/margin_normal"
+                android:drawablePadding="?android:listPreferredItemPaddingStart"
+                android:minHeight="?android:listPreferredItemHeightSmall"
+                android:paddingStart="?android:listPreferredItemPaddingStart"
+                android:paddingEnd="?android:listPreferredItemPaddingEnd"
+                android:text="@string/use_two_pages_landscape"
+                android:textAppearance="?textAppearanceListItem"
+                android:textColor="?colorOnSurfaceVariant"
+                app:drawableStartCompat="@drawable/ic_split_horizontal" />
 
-			<TextView
-				android:id="@+id/text_sensitivity"
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				android:layout_marginHorizontal="@dimen/margin_normal"
-				android:layout_marginTop="@dimen/margin_small"
-				android:text="@string/two_page_scroll_sensitivity"
-				android:textAppearance="@style/TextAppearance.Kotatsu.GridTitle" />
+            <com.google.android.material.materialswitch.MaterialSwitch
+                android:id="@+id/switch_double_foldable"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="@dimen/margin_small"
+                android:drawablePadding="?android:listPreferredItemPaddingStart"
+                android:minHeight="?android:listPreferredItemHeightSmall"
+                android:paddingStart="?android:listPreferredItemPaddingStart"
+                android:paddingEnd="?android:listPreferredItemPaddingEnd"
+                android:text="@string/auto_double_foldable"
+                android:textAppearance="@style/TextAppearance.Kotatsu.GridTitle"
+                android:textColor="?colorOnSurfaceVariant"
+                android:visibility="gone"
+                tools:visibility="visible" />
 
-			<com.google.android.material.slider.Slider
-				android:id="@+id/seekbar_sensitivity"
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				android:layout_marginHorizontal="@dimen/margin_small"
-				android:layout_marginTop="@dimen/margin_small"
-				android:valueFrom="0"
-				android:valueTo="100"
-				app:labelBehavior="floating"
-				tools:value="50" />
+            <TextView
+                android:id="@+id/text_double_sensitivity"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginHorizontal="@dimen/margin_normal"
+                android:layout_marginTop="@dimen/margin_small"
+                android:text="@string/two_page_scroll_sensitivity"
+                android:textAppearance="@style/TextAppearance.Kotatsu.GridTitle" />
 
-			<com.google.android.material.materialswitch.MaterialSwitch
-				android:id="@+id/switch_pull_gesture"
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				android:layout_marginTop="@dimen/margin_small"
-				android:drawablePadding="?android:listPreferredItemPaddingStart"
-				android:minHeight="?android:listPreferredItemHeightSmall"
-				android:paddingStart="?android:listPreferredItemPaddingStart"
-				android:paddingEnd="?android:listPreferredItemPaddingEnd"
-				android:text="@string/enable_pull_gesture_title"
-				android:textAppearance="?textAppearanceListItem"
-				android:textColor="?colorOnSurfaceVariant"
-				app:drawableStartCompat="@drawable/ic_gesture_vertical" />
+            <com.google.android.material.slider.Slider
+                android:id="@+id/slider_double_sensitivity"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginHorizontal="@dimen/margin_small"
+                android:layout_marginTop="@dimen/margin_small"
+                android:valueFrom="0"
+                android:valueTo="100"
+                app:labelBehavior="floating"
+                tools:value="50" />
 
-			<org.koitharu.kotatsu.core.ui.widgets.ListItemTextView
-				android:id="@+id/button_screen_rotate"
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				android:text="@string/rotate_screen"
-				android:visibility="gone"
-				app:drawableStartCompat="@drawable/ic_screen_rotation"
-				tools:visibility="visible" />
+            <org.koitharu.kotatsu.core.ui.widgets.ListItemTextView
+                android:id="@+id/button_screen_rotate"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:text="@string/rotate_screen"
+                android:visibility="gone"
+                app:drawableStartCompat="@drawable/ic_screen_rotation"
+                tools:visibility="visible" />
 
-			<com.google.android.material.materialswitch.MaterialSwitch
-				android:id="@+id/switch_screen_lock_rotation"
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				android:drawablePadding="?android:listPreferredItemPaddingStart"
-				android:ellipsize="end"
-				android:minHeight="?android:listPreferredItemHeightSmall"
-				android:paddingStart="?android:listPreferredItemPaddingStart"
-				android:paddingEnd="?android:listPreferredItemPaddingEnd"
-				android:singleLine="true"
-				android:text="@string/lock_screen_rotation"
-				android:textAppearance="?textAppearanceListItem"
-				android:textColor="?colorOnSurfaceVariant"
-				android:visibility="gone"
-				app:drawableStartCompat="@drawable/ic_screen_rotation_lock"
-				tools:visibility="visible" />
+            <com.google.android.material.materialswitch.MaterialSwitch
+                android:id="@+id/switch_screen_lock_rotation"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:drawablePadding="?android:listPreferredItemPaddingStart"
+                android:ellipsize="end"
+                android:minHeight="?android:listPreferredItemHeightSmall"
+                android:paddingStart="?android:listPreferredItemPaddingStart"
+                android:paddingEnd="?android:listPreferredItemPaddingEnd"
+                android:singleLine="true"
+                android:text="@string/lock_screen_rotation"
+                android:textAppearance="?textAppearanceListItem"
+                android:textColor="?colorOnSurfaceVariant"
+                android:visibility="gone"
+                app:drawableStartCompat="@drawable/ic_screen_rotation_lock"
+                tools:visibility="visible" />
 
-			<org.koitharu.kotatsu.core.ui.widgets.ListItemTextView
-				android:id="@+id/button_scroll_timer"
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				android:text="@string/automatic_scroll"
-				app:drawableStartCompat="@drawable/ic_timer" />
+            <org.koitharu.kotatsu.core.ui.widgets.ListItemTextView
+                android:id="@+id/button_scroll_timer"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:text="@string/automatic_scroll"
+                app:drawableStartCompat="@drawable/ic_timer" />
 
-			<org.koitharu.kotatsu.core.ui.widgets.ListItemTextView
-				android:id="@+id/button_color_filter"
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				android:text="@string/color_correction"
-				app:drawableStartCompat="@drawable/ic_appearance" />
+            <org.koitharu.kotatsu.core.ui.widgets.ListItemTextView
+                android:id="@+id/button_color_filter"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:text="@string/color_correction"
+                app:drawableStartCompat="@drawable/ic_appearance" />
 
-			<org.koitharu.kotatsu.core.ui.widgets.ListItemTextView
-				android:id="@+id/button_settings"
-				android:layout_width="match_parent"
-				android:layout_height="wrap_content"
-				android:text="@string/settings"
-				app:drawableStartCompat="@drawable/ic_settings" />
+            <org.koitharu.kotatsu.core.ui.widgets.ListItemTextView
+                android:id="@+id/button_settings"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:text="@string/settings"
+                app:drawableStartCompat="@drawable/ic_settings" />
 
-		</LinearLayout>
+        </LinearLayout>
 
-	</androidx.core.widget.NestedScrollView>
+    </androidx.core.widget.NestedScrollView>
 </LinearLayout>

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

@@ -64,6 +64,14 @@
 						android:text="@string/sync_auth"
 						app:chipIcon="@drawable/ic_sync" />
 
+					<com.google.android.material.chip.Chip
+						android:id="@+id/chip_directories"
+						style="@style/Widget.Kotatsu.Chip.Assist"
+						android:layout_width="wrap_content"
+						android:layout_height="wrap_content"
+						android:text="@string/local_manga_directories"
+						app:chipIcon="@drawable/ic_storage" />
+
 				</com.google.android.material.chip.ChipGroup>
 
 			</HorizontalScrollView>

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

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="horizontal"
+    android:paddingHorizontal="@dimen/screen_padding"
+    android:paddingTop="@dimen/margin_small">
+
+    <AutoCompleteTextView
+        android:id="@+id/autoCompleteTextView"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_alignParentStart="true"
+        android:layout_centerVertical="true"
+        android:layout_toStartOf="@id/dropdown"
+        tools:ignore="LabelFor" />
+
+    <ImageButton
+        android:id="@+id/dropdown"
+        android:layout_width="48dp"
+        android:layout_height="48dp"
+        android:layout_alignParentEnd="true"
+        android:layout_centerVertical="true"
+        android:layout_gravity="center_vertical|end"
+        android:background="?selectableItemBackgroundBorderless"
+        android:paddingBottom="2dp"
+        android:scaleType="center"
+        android:src="@drawable/ic_expand_more"
+        tools:ignore="ContentDescription" />
+
+</RelativeLayout>

app/src/main/res/menu/opt_search_kind.xml

@@ -33,6 +33,20 @@
 					android:title="@string/genre" />
 
 			</group>
+
+			<group android:id="@+id/group_search_filters">
+
+				<item
+					android:id="@+id/action_filter_pinned_only"
+					android:checkable="true"
+					android:title="@string/pinned_sources_only" />
+
+				<item
+					android:id="@+id/action_filter_hide_empty"
+					android:checkable="true"
+					android:title="@string/hide_empty_sources" />
+
+			</group>
 		</menu>
 
 	</item>

app/src/main/res/menu/popup_saved_filter.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu
+    xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <item
+        android:id="@+id/action_rename"
+        android:title="@string/rename" />
+
+    <item
+        android:id="@+id/action_delete"
+        android:title="@string/delete" />
+</menu>

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

@@ -179,4 +179,43 @@
     <string name="incognito_mode_hint">আপনার পড়ার অগ্রগতি সেভ হবে না</string>
     <string name="volume_">আওয়াজ%d</string>
     <string name="volume_unknown">অজানা ভলিউম</string>
+    <string name="suggested_queries">সাম্প্রতিক প্রশ্ন</string>
+    <string name="authors">লেখক</string>
+    <string name="blocked_by_server_message">আপনি সার্ভার দ্বারা অবরুদ্ধ করা হয়. একটি ভিন্ন নেটওয়ার্ক সংযোগ ব্যবহার করার চেষ্টা করুন (ভিপিএন, প্রক্সি, ইত্যাদি)</string>
+    <string name="disable">নিষ্ক্রিয় করুন</string>
+    <string name="sources_disabled">উৎস নিষ্ক্রিয়</string>
+    <string name="disable_connectivity_check">সংযোগ পরীক্ষা করতে অক্ষম করুন</string>
+    <string name="ignore_ssl_errors_summary">নেটওয়ার্ক সংস্থানগুলি অ্যাক্সেস করার সময় আপনি যদি কোনও SSL- সম্পর্কিত সমস্যার মুখোমুখি হন তবে আপনি SSL শংসাপত্র যাচাইকরণ অক্ষম করতে পারেন৷ এটি আপনার নিরাপত্তা প্রভাবিত করতে পারে। এই সেটিং পরিবর্তন করার পরে অ্যাপ্লিকেশন পুনরায় চালু করা প্রয়োজন।</string>
+    <string name="disable_connectivity_check_summary">আপনার সমস্যা থাকলে কানেক্টিভিটি চেক এড়িয়ে যান (যেমন, নেটওয়ার্ক সংযুক্ত থাকা সত্ত্বেও অফলাইন মোডে যাওয়া)</string>
+    <string name="disable_nsfw_notifications">NSFW বিজ্ঞপ্তি অক্ষম করুন</string>
+    <string name="disable_nsfw_notifications_summary">NSFW মাঙ্গা আপডেট সম্পর্কে বিজ্ঞপ্তি দেখাবেন না</string>
+    <string name="tracker_debug_info">নতুন অধ্যায় লগ জন্য পরীক্ষা করা হচ্ছে</string>
+    <string name="tracker_debug_info_summary">নতুন অধ্যায়গুলির জন্য পটভূমি পরীক্ষা সম্পর্কে তথ্য ডিবাগ করুন</string>
+    <string name="_new">নতুন</string>
+    <string name="all_languages">সব ভাষা</string>
+    <string name="screenshots_block_incognito">ছদ্মবেশী মোড হলে ব্লক করুন</string>
+    <string name="image_server">পছন্দের ইমেজ সার্ভার</string>
+    <string name="crop_pages">পৃষ্ঠাগুলি কাটা</string>
+    <string name="pin">পিন</string>
+    <string name="unpin">আনপিন করুন</string>
+    <string name="source_pinned">উৎস পিন করা হয়েছে</string>
+    <string name="source_unpinned">উৎস আনপিন করা হয়েছে</string>
+    <string name="sources_unpinned">উৎস আনপিন করা হয়েছে</string>
+    <string name="sources_pinned">উৎস পিন করা হয়েছে</string>
+    <string name="recent_sources">সাম্প্রতিক সূত্র</string>
+    <string name="percent_read">শতকরা কতটুকু করেছেন</string>
+    <string name="percent_left">শতকরা কতটুকু পড়তে বাকি আছে</string>
+    <string name="chapters_read">অধ্যায় পড়া</string>
+    <string name="chapters_left">অধ্যায় বাকি আছে</string>
+    <string name="external_source">বাহ্যিক/প্লাগইন</string>
+    <string name="plugin_incompatible">বেমানান প্লাগইন বা অভ্যন্তরীণ ত্রুটি. আপনি প্লাগইন এবং Kotatsu এর সর্বশেষ সংস্করণ ব্যবহার করছেন তা নিশ্চিত করুন৷</string>
+    <string name="plugin_incompatible_with_cause">প্লাগইন ত্রুটি: %s \n· নিশ্চিত করুন যে আপনি প্লাগইন এবং Kotatsu এর সর্বশেষ সংস্করণ ব্যবহার করছেন</string>
+    <string name="connection_ok">সংযোগ ঠিক আছে</string>
+    <string name="invalid_proxy_configuration">অবৈধ প্রক্সি কনফিগারেশন</string>
+    <string name="show_quick_filters">দ্রুত ফিল্টার দেখান</string>
+    <string name="show_quick_filters_summary">নির্দিষ্ট পরামিতি দ্বারা মাঙ্গা তালিকা ফিল্টার করার ক্ষমতা প্রদান করে</string>
+    <string name="sfw">SFW</string>
+    <string name="skip_all">সব এড়িয়ে যান</string>
+    <string name="stuck">আটকে গেছে</string>
+    <string name="source_broken_warning">এই মঙ্গা সূত্রটি\nভাঙ্গা হিসাবে চিহ্নিত। কিছু বৈশিষ্ট্য \nকাজ নাও হতে পারে</string>
 </resources>

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

@@ -740,7 +740,7 @@
     <string name="all_sources_enabled">Všechny zdroje jsou povoleny</string>
     <string name="rating">Hodnocení</string>
     <string name="source">Zdroj</string>
-    <string name="incognito">Anonymní</string>
+    <string name="incognito">Inkognito</string>
     <string name="reader_info_bar_transparent">Průhledný informační proužek pro čtenáře</string>
     <string name="handle_links">Spravovat odkazy</string>
     <string name="handle_links_summary">Zpracování odkazů na manga z externích aplikací (např. webového prohlížeče). Může být také nutné povolit ji ručně v systémových nastaveních aplikace</string>
@@ -812,4 +812,75 @@
     <string name="creating_backup">Vytváření kopie</string>
     <string name="collapse_long_description">Sbalit dlouhý popis</string>
     <string name="changelog">Seznam změn</string>
+    <string name="saved_filters">Uložené filtry</string>
+    <string name="enter_name">Vložte jméno</string>
+    <string name="theme_name_expressive">Výrazný (Test)</string>
+    <string name="pull_to_prev_chapter">Uvolněte pro otevření předešlé kapitoly</string>
+    <string name="pull_to_next_chapter">Uvolněte pro otevření další kapitoly</string>
+    <string name="pull_top_no_prev">Žádná předešlá kapitola</string>
+    <string name="pull_bottom_no_next">Žádná další kapitola</string>
+    <string name="frequency_every_6_hours">Každých 6 hodin</string>
+    <string name="reader_navigation_inverted">Převrátit navigační prvky</string>
+    <string name="reader_navigation_inverted_summary">Vyměňit směr tlačítka hlasitosti a šipek na klávesnici (vlevo/nahoru/dolů/vpravo)</string>
+    <string name="two_page_scroll_sensitivity">Dvoustranná citlivost posouvání</string>
+    <string name="enable_pull_gesture_title">Povolit tahová gesta</string>
+    <string name="enable_pull_gesture_summary">Použijte tahová gesta pro přepínání kapitol v režimu webtoon</string>
+    <string name="reader_chapter_toast">Zobrazit změnu kapitoly pomocí pop-upu</string>
+    <string name="reader_chapter_toast_summary">Zobrazit pop-up s názvem kapitoly, když se změní</string>
+    <string name="badges_in_lists">Odznaky v seznamech</string>
+    <string name="link_to_manga_on_s">Odkaz na mangu na %s</string>
+    <string name="no_write_permission_to_file">Nemá oprávnění k ukládání souboru</string>
+    <string name="error_non_file_uri">Zvolená cesta nemůže být použita, protože neoznačuje soubor nebo adresář</string>
+    <string name="use_default_cover">Použít výchozí přebal</string>
+    <string name="pick_manga_page">Vyberte stranu mangy</string>
+    <string name="pick_custom_file">Vybrat vlastní přebal</string>
+    <string name="change_cover">Změnit přebal</string>
+    <string name="page_switch_timer">Strana se změní kažých ~%d sekund</string>
+    <string name="incognito_mode_hint_nsfw">Tato manga může obsahovat dospělá témata. Chcete použít režim inkognito?</string>
+    <string name="incognito_for_nsfw">Režim inkognito pro NSFW mangu</string>
+    <string name="additional_action_required">Dodatečná akce je nutná</string>
+    <string name="hide_from_main_screen">Skrýt z hlavní obrazovky</string>
+    <string name="changelog_summary">Historie změn pro nedávno vydané verze</string>
+    <string name="reader_multitask">Otevřít čtečku ve vlastním okně</string>
+    <string name="reader_multitask_summary">Umožňuje zároveň otevřít několik různých mang ve vlastních oknech</string>
+    <string name="theme_name_itsuka">Itsuka</string>
+    <string name="theme_name_totoro">Totoro</string>
+    <string name="book_effect">Nažloutlé pozadí (filtr modrého světla)</string>
+    <string name="local_storage_cleanup">Čištění místního úložišťe</string>
+    <string name="packup_creation_failed">Nepodařilo se vytvořit zálohu</string>
+    <string name="main_screen">Hlavní obrazovka</string>
+    <string name="main_screen_fab">Zobrazit plovoucí tlačítko Pokračovat</string>
+    <string name="main_screen_fab_summary">Umožňuje pokračovat ve čtení jedním kliknutím. Toto tlačítko se nezobrazí v režimu inkognito nebo když je historie prázdná</string>
+    <string name="error_corrupted_zip">Poškozený ZIP archiv (%s)</string>
+    <string name="discord_rpc">Discord Rich Presence</string>
+    <string name="discord_token">Discord Token</string>
+    <string name="discord_token_summary">Zadejte svůj Discord Token, abyste zapnuli Rich Presence</string>
+    <string name="discord_token_description">Zadejte svůj Discord Token nebo klikněte na %s, abyste ho získali pomocí prohlížeče</string>
+    <string name="discord_token_hint">Vložte svůj Discord Token zde</string>
+    <string name="discord_rpc_summary">Zobrazit stav čtení na Discordu</string>
+    <string name="obtain">Získat</string>
+    <string name="discord_rpc_description">Čte mangu na Kotatsu - aplikace pro čtení mangy</string>
+    <string name="reading_s">Čtení %s</string>
+    <string name="read_on_s">Číst na %s</string>
+    <string name="rpc_skip_nsfw_summary">Nepoužívat RPC pro mangu pro dospělé</string>
+    <string name="invalid_token">Neplatný token: %s</string>
+    <string name="show_floating_control_button">Zobrazit plovoucí ovládací tlačítko</string>
+    <string name="unavailable">Nedostupné</string>
+    <string name="manga_restricted_description">Tato manga není k dispozici od tohoto zdroje. Zkuste ji vyhledat v jiných zdrojích nebo otevřít v prohlížeči pro více informací</string>
+    <string name="no_chapters_in_manga">Tato manga neobsahuje žádné kapitoly</string>
+    <string name="chapters_load_failed">Načítání kapitol selhalo</string>
+    <string name="telegram_integration">Integrace Telegramu</string>
+    <string name="test_parser">Vyzkoušet zdroje mang</string>
+    <string name="rename">Přejmenovat</string>
+    <string name="save_filter">Uložit filtr</string>
+    <string name="overwrite">Nahradit</string>
+    <string name="filter_overwrite_confirm">Filtr pojmenován\"%s\" již existuje. Chcete ho nahradit?</string>
+    <string name="storage_and_network">Uložiště a síť</string>
+    <string name="create_or_restore_backup">Vytvořit nebo obnovit zálohu</string>
+    <string name="data_removal">Odstranění dat</string>
+    <string name="privacy">Soukromí</string>
+    <string name="source_broken_warning">Tento zdroj byl označen jako rozbitý. Některé funkce nemusí fungovat</string>
+    <string name="download_default_directory">Výchozí adresář pro stahování mangy</string>
+    <string name="private_app_directory_warning">Tento adresář a všechna data v něm budou smazána, pokud odinstalujete aplikaci</string>
+    <string name="available_pattern">%1$s dostupný</string>
 </resources>

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

@@ -859,4 +859,8 @@
     <string name="pull_bottom_no_next">Walang susunod na kabanata</string>
     <string name="enable_pull_gesture_title">Paganahin ang paghila na gesture</string>
     <string name="enable_pull_gesture_summary">Gamitin ang paghila na gesture para makapagpalit ng kabanata sa webtoon</string>
+    <string name="saved_filters">Naka-save na mga filter</string>
+    <string name="enter_name">Ipasok ang pangalan</string>
+    <string name="reader_chapter_toast">Ipakita ang popup sa pagpalit ng kabanata</string>
+    <string name="reader_chapter_toast_summary">Magpakita ng pop-up na mensahe na may pamagat ng kabanata kapag binago ito</string>
 </resources>

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

@@ -579,8 +579,8 @@
     <string name="reader_actions_summary">Konfigurirajte radnje za dodirna područja zaslona</string>
     <string name="switch_pages_volume_buttons_summary">Koristite tipke za glasnoću za prebacivanje stranica</string>
     <string name="tap_action">Radnja pri dodiru</string>
-    <string name="long_tap_action">Radnja dugog dodira</string>
-    <string name="use_two_pages_landscape">Koristi izgled dvije stranice u pejzažnoj orijentaciji (beta)</string>
+    <string name="long_tap_action">Radnja pri dugom dodiru</string>
+    <string name="use_two_pages_landscape">Koristi raspored dviju stranice u poleženom položaju (beta)</string>
     <string name="download_option_next_unread_n_chapters">Sljedeći nepročitani %s</string>
     <string name="download_option_all_unread">Sva nepročitana poglavlja</string>
     <string name="download_option_all_unread_b">Sva nepročitana poglavlja (%s)</string>
@@ -861,4 +861,24 @@
     <string name="test_parser">Testiraj izvor mange</string>
     <string name="discord_rpc">Discord Rich Presence</string>
     <string name="discord_token_summary">Unesi svoj Discord token za uključivanje Rich Presence podataka</string>
+    <string name="saved_filters">Spremljeni filtri</string>
+    <string name="enter_name">Upiši ime</string>
+    <string name="reader_chapter_toast_summary">Prikaži skočnu poruku s naslovom poglavlja kada je promijenjen</string>
+    <string name="rename">Preimenuj</string>
+    <string name="save_filter">Spremi filtar</string>
+    <string name="reader_chapter_toast">Prikaži skočnu poruku za promijenjeno poglavlje</string>
+    <string name="two_page_scroll_sensitivity">Osjetljivost pomicanja dviju stranica</string>
+    <string name="frequency_every_6_hours">Svakih 6 sati</string>
+    <string name="overwrite">Prepiši</string>
+    <string name="filter_overwrite_confirm">Filtar s imenom „%s” već postoji. Želiš li ga prepisati?</string>
+    <string name="storage_and_network">Spremište i mreža</string>
+    <string name="create_or_restore_backup">Stvori ili obnovi sigurnosnu kopiju</string>
+    <string name="data_removal">Uklanjanje podataka</string>
+    <string name="privacy">Privatnost</string>
+    <string name="source_broken_warning">Ovaj izvor mange označen je kao pokvaren. Neke funkcije možda neće raditi</string>
+    <string name="download_default_directory">Standardni direktorij za preuzimanje manga</string>
+    <string name="private_app_directory_warning">Ako deinstaliraš aplikaciju, ovaj će se direktorij izbrisati sa svim podacima</string>
+    <string name="available_pattern">%1$s dostupno</string>
+    <string name="pinned_sources_only">Samo prikvačeni izvori</string>
+    <string name="hide_empty_sources">Sakrij prazne izvore</string>
 </resources>

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

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <plurals name="items">
-        <item quantity="other">”%1$d butir</item>
+        <item quantity="other">%1$d item</item>
     </plurals>
     <plurals name="new_chapters">
         <item quantity="other">%1$d Sub-bab Baru</item>

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

@@ -865,4 +865,24 @@
     <string name="pull_bottom_no_next">Tidak ada bab berikutnya</string>
     <string name="enable_pull_gesture_title">Aktifkan gerakan tarik</string>
     <string name="enable_pull_gesture_summary">Gunakan gerakan tarik untuk pindah bab di webtoon</string>
+    <string name="two_page_scroll_sensitivity">Sensitivitas Gulir Dua Halaman</string>
+    <string name="saved_filters">Filter tersimpan</string>
+    <string name="enter_name">Masukkan nama</string>
+    <string name="reader_chapter_toast">Tampilkan popup perubahan bab</string>
+    <string name="reader_chapter_toast_summary">Tampilkan pesan pop-up dengan judul bab saat diubah</string>
+    <string name="rename">Ganti nama</string>
+    <string name="save_filter">Simpan filter</string>
+    <string name="overwrite">Timpa</string>
+    <string name="filter_overwrite_confirm">Filter bernama \"%s\" sudah ada. Ingin menimpanya?</string>
+    <string name="storage_and_network">Penyimpanan dan jaringan</string>
+    <string name="create_or_restore_backup">Buat atau pulihkan cadangan</string>
+    <string name="data_removal">Penghapusan data</string>
+    <string name="source_broken_warning">Sumber manga ini telah ditandai rusak. Beberapa fitur mungkin tidak berfungsi</string>
+    <string name="privacy">Pribadi</string>
+    <string name="frequency_every_6_hours">Setiap 6 jam</string>
+    <string name="download_default_directory">Direktori default untuk mengunduh manga</string>
+    <string name="private_app_directory_warning">Direktori ini beserta semua datanya akan dihapus jika Anda menghapus aplikasi</string>
+    <string name="available_pattern">%1$s tersedia</string>
+    <string name="pinned_sources_only">Hanya sumber yang disematkan</string>
+    <string name="hide_empty_sources">Sembunyikan sumber kosong</string>
 </resources>

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

@@ -866,4 +866,22 @@
     <string name="pull_bottom_no_next">Nessun capitolo successivo</string>
     <string name="enable_pull_gesture_title">Abilita gesto di scorrimento</string>
     <string name="enable_pull_gesture_summary">Abilita gesto di scorrimento per cambiare capitolo in webtoon</string>
+    <string name="two_page_scroll_sensitivity">Sensibilità di scorrimento a due pagine</string>
+    <string name="saved_filters">Filtri salvati</string>
+    <string name="enter_name">Inserisci nome</string>
+    <string name="reader_chapter_toast">Mostra popup di cambio capitolo</string>
+    <string name="reader_chapter_toast_summary">Mostra un messaggio pop-up con un titolo del capitolo quando è cambiato</string>
+    <string name="rename">Rinomina</string>
+    <string name="save_filter">Salva filtro</string>
+    <string name="overwrite">Sovrascrivi</string>
+    <string name="filter_overwrite_confirm">Un filtro di nome \"%s\" esiste già. Vuoi sovrascriverlo?</string>
+    <string name="storage_and_network">Memoria e rete</string>
+    <string name="create_or_restore_backup">Crea o ripristina un backup</string>
+    <string name="data_removal">Rimozione dei dati</string>
+    <string name="privacy">Privacy</string>
+    <string name="source_broken_warning">Questa fonte manga è stata contrassegnata come non funzionante. Alcune funzioni potrebbero non essere disponibili</string>
+    <string name="frequency_every_6_hours">Ogni 6 ore</string>
+    <string name="download_default_directory">Cartella predefinita per scaricare manga</string>
+    <string name="private_app_directory_warning">Questa cartella e tutti i suoi dati verranno eliminati se disinstalli l\'applicazione</string>
+    <string name="available_pattern">%1$s disponibile</string>
 </resources>

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

@@ -93,7 +93,7 @@
     <string name="manga_shelf">本棚</string>
     <string name="recent_manga">最近</string>
     <string name="pages_animation">ページアニメーション</string>
-    <string name="manga_save_location">ダウンロード用のフォルダ</string>
+    <string name="manga_save_location">ダウンロードフォルダ</string>
     <string name="not_available">利用不可</string>
     <string name="cannot_find_available_storage">使用可能なストレージがありません</string>
     <string name="other_storage">その他のストレージ</string>
@@ -101,7 +101,7 @@
     <string name="all_favourites">全てのお気に入り</string>
     <string name="read_later">後で読む</string>
     <string name="updates">更新</string>
-    <string name="text_feed_holder">あなたが読んでいるものの新しいチャプターがここに示されています</string>
+    <string name="text_feed_holder">あなたが読んでいるものの新しい章がここに示されています</string>
     <string name="search_results">の検索結果</string>
     <string name="size_s">サイズ:%s</string>
     <string name="clear_updates_feed">更新フィードをクリア</string>
@@ -249,7 +249,7 @@
     <string name="send">送信</string>
     <string name="disable_all">すべて無効にする</string>
     <string name="appwidget_recent_description">最近読んだ漫画</string>
-    <string name="use_fingerprint">指紋がある場合は、指紋を使用する</string>
+    <string name="use_fingerprint">利用可能な場合、指紋認証を使用する</string>
     <string name="appwidget_shelf_description">お気に入りの漫画</string>
     <string name="report">報告</string>
     <string name="status_reading">読書</string>
@@ -316,7 +316,7 @@
     <string name="reader_control_ltr">人間工学に基づいたリーダーコントロール</string>
     <string name="history_shortcuts">最近のマンガのショートカットを表示</string>
     <string name="history_shortcuts_summary">アプリケーションアイコンを長押しして最近のマンガを利用できるようにする</string>
-    <string name="reader_control_ltr_summary">右端をタップするか、右キーを押すと、常に次のページに切り替わります</string>
+    <string name="reader_control_ltr_summary">ページ切り替え方向をリーダーモードに調整しないでください。例えば、右キーを押すと常に次のページに切り替わります。このオプションはハードウェア入力デバイスにのみ影響します。</string>
     <string name="color_correction">色補正</string>
     <string name="brightness">輝度</string>
     <string name="contrast">コントラスト</string>
@@ -565,7 +565,7 @@
     <string name="show_labels_in_navbar">ナビゲーションバーにラベルを表示する</string>
     <string name="pages_saving">ページを保存</string>
     <string name="remove_from_history">履歴から削除</string>
-    <string name="preferred_download_format">希望するダウンロード形式</string>
+    <string name="preferred_download_format">推奨ダウンロード形式</string>
     <string name="single_cbz_file">単一のCBZファイル</string>
     <string name="multiple_cbz_files">複数のCBZファイル</string>
     <string name="other_manga">他のマンガ</string>
@@ -667,4 +667,152 @@
     <string name="error_not_image">無効な形式です: 画像が期待されましたが %s が入力されました</string>
     <string name="start_download">ダウンロード開始</string>
     <string name="save_manga_confirm">選択したマンガを保存しますか？通信量とディスク容量を消費する可能性があります</string>
+    <string name="save_manga">マンガを保存</string>
+    <string name="genre">ジャンル</string>
+    <string name="download_added">ダウンロードに追加</string>
+    <string name="chapter_selection_hint">チャプターリストの項目を長押しすると、ダウンロードするチャプターを選択できます。</string>
+    <string name="frequency_every_6_hours">6時間毎に</string>
+    <string name="available_pattern">%1$sが有効</string>
+    <string name="no_chapters_in_manga">この漫画には利用可能なチャプターが含まれていません</string>
+    <string name="chapters_load_failed">チャプターリストの読み込みに失敗</string>
+    <string name="telegram_integration">Telegramで連携</string>
+    <string name="test_parser">漫画のソースをテストする</string>
+    <string name="rename">リネーム</string>
+    <string name="save_filter">フィルターを保存</string>
+    <string name="overwrite">上書き</string>
+    <string name="filter_overwrite_confirm">「%s」という名前のフィルターが既に存在します。上書きしますか？</string>
+    <string name="storage_and_network">ストレージとネットワーク</string>
+    <string name="create_or_restore_backup">バックアップを作成または復元する</string>
+    <string name="data_removal">データ削除</string>
+    <string name="privacy">プライバシー</string>
+    <string name="source_broken_warning">この漫画ソースは破損しているとマークされています。一部の機能が動作しない可能性があります</string>
+    <string name="download_default_directory">漫画ダウンロードのデフォルトディレクトリ</string>
+    <string name="private_app_directory_warning">アプリケーションをアンインストールすると、このディレクトリとすべてのデータが削除されます</string>
+    <string name="author">著者</string>
+    <string name="rating">評価</string>
+    <string name="source">ソース</string>
+    <string name="translation">翻訳</string>
+    <string name="captcha_required_message">このソースを続行するにはキャプチャを解決する必要があります</string>
+    <string name="ask_every_time">いつでも聞いて</string>
+    <string name="screen_orientation">画面の向き</string>
+    <string name="portrait">肖像画</string>
+    <string name="landscape">風景</string>
+    <string name="by_name_reverse">名前を反転</string>
+    <string name="content_rating">コンテンツレーティング</string>
+    <string name="global_search">グローバルサーチ</string>
+    <string name="disable_captcha_notifications">Captcha通知を無効にする</string>
+    <string name="disable_captcha_notifications_summary">このソースのCaptchaに関する通知は届きませんが、これによりバックグラウンド操作（新章の確認、おすすめ情報の取得など）が中断される可能性があります</string>
+    <string name="chapter_volume_number">巻 %1$s 章 %2$s</string>
+    <string name="chapter_number">章%s</string>
+    <string name="unnamed_chapter">名前のない章</string>
+    <string name="search_disabled_sources">無効化されたソースを検索する</string>
+    <string name="error_details">エラーの詳細</string>
+    <string name="error_disclaimer_manga">ウェブブラウザで漫画を開いて、そのソースで利用可能かどうかを確認してください。</string>
+    <string name="error_disclaimer_app_outdated">お使いのKotatsuのバージョンが古くなっているようです。最新のバージョンをインストールして、利用可能なすべての修正プログラムを入手してください。</string>
+    <string name="error_disclaimer_report">開発者へバグ報告を提出できます。これにより問題の調査と修正に役立ちます。</string>
+    <string name="link_to_manga_on_s">%sの漫画へのリンク</string>
+    <string name="link_to_manga_in_app">Kotatsuの中の漫画へのリンク</string>
+    <string name="clear_browser_data">ブラウザのデータを消去する</string>
+    <string name="clear_browser_data_summary">キャッシュやクッキーなどのブラウザデータを消去してください。警告：マンガソースでの認証が無効になる可能性があります</string>
+    <string name="no_write_permission_to_file">ファイルへの書き込み権限がありません</string>
+    <string name="exclude_nsfw_from_suggestions_summary">成人向け漫画はおすすめに表示されません。このオプションは一部のソースでは正確に機能しない場合があります</string>
+    <string name="include_disabled_sources">無効化されたソースを含める</string>
+    <string name="suggestions_disabled_sources_summary">すべてのマンガソースからの提案を表示する（無効化されているものも含む）</string>
+    <string name="tags_warnings">危険なジャンルを強調する</string>
+    <string name="tags_warnings_summary">ほとんどのユーザーにとって不適切と思われるジャンルを強調表示する</string>
+    <string name="error_non_file_uri">選択されたパスはファイルまたはディレクトリを指していないため使用できません</string>
+    <string name="manga_override_hint">これらの変更は、アプリ内でのマンガの表示方法に影響を与えます</string>
+    <string name="use_default_cover">デフォルトの表紙を使用する</string>
+    <string name="pick_manga_page">漫画のページを選ぶ</string>
+    <string name="pick_custom_file">カスタムファイルを選択</string>
+    <string name="change_cover">カバーを変える</string>
+    <string name="page_switch_timer">ページは約%d秒ごとに切り替わります</string>
+    <string name="dont_ask_again">二度と聞くな</string>
+    <string name="incognito_mode_hint_nsfw">この漫画には成人向けの内容が含まれている可能性があります。シークレットモードを使用しますか？</string>
+    <string name="incognito_for_nsfw">成人向け漫画のシークレットモード</string>
+    <string name="additional_action_required">追加の操作が必要です</string>
+    <string name="hide_from_main_screen">メイン画面から非表示にする</string>
+    <string name="changelog">変更履歴</string>
+    <string name="changelog_summary">最近リリースされたバージョンの変更履歴</string>
+    <string name="collapse">折りたたむ</string>
+    <string name="expand">拡張する</string>
+    <string name="adblock">ブラウザで広告をブロックする</string>
+    <string name="adblock_summary">組み込みブラウザでの広告ブロック（ベータ版）</string>
+    <string name="collapse_long_description">長い説明を折りたたむ</string>
+    <string name="creating_backup">バックアップを作成する</string>
+    <string name="share_backup">バックアップを共有する</string>
+    <string name="reader_multitask">別のタスクでリーダーを開く</string>
+    <string name="reader_multitask_summary">複数の異なる漫画を開いたまま、複数のリーダーを同時に保持できます</string>
+    <string name="theme_name_itsuka">トピックス</string>
+    <string name="theme_name_totoro">トトロ</string>
+    <string name="book_effect">黄色がかった背景(青いフィルター)</string>
+    <string name="local_storage_cleanup">ローカルストレージのクリーンアップ</string>
+    <string name="packup_creation_failed">バックアップの作成に失敗しました</string>
+    <string name="main_screen">メイン画面</string>
+    <string name="main_screen_fab">フローティングの「続行」ボタンを表示</string>
+    <string name="main_screen_fab_summary">ワンクリックで読み続けられます。このボタンはシークレットモード時や履歴が空の時には表示されません</string>
+    <string name="error_corrupted_zip">破損したZIPアーカイブ(%s)</string>
+    <string name="discord_rpc">Discord リッチプレゼンス</string>
+    <string name="discord_token">Discordトークン</string>
+    <string name="discord_token_summary">リッチプレゼンスを有効にするには、Discordトークンを入力してください</string>
+    <string name="discord_token_description">Discord トークンを入力するか、%s をクリックしてブラウザーで取得します</string>
+    <string name="discord_token_hint">ここにDiscordトークンを貼り付けてください</string>
+    <string name="discord_rpc_summary">Discordで読み取りステータスを表示</string>
+    <string name="obtain">アクセス</string>
+    <string name="discord_rpc_description">Kotatsuで漫画を読む - 漫画リーダーアプリ</string>
+    <string name="reading_s">読書 %s</string>
+    <string name="read_on_s">%s で読む</string>
+    <string name="rpc_skip_nsfw_summary">成人向けコンテンツに RPC を使用しないでください</string>
+    <string name="invalid_token">無効なトークン: %s</string>
+    <string name="show_floating_control_button">「続行」ボタンをフローティングで表示</string>
+    <string name="unavailable">利用案内</string>
+    <string name="manga_restricted_description">このマンガは、このソースで読み込むことはできません。 他のソースで検索するか、ブラウザで開くと、より多くの情報が得られます</string>
+    <string name="saved_filters">保存フィルター</string>
+    <string name="chapters_grid_view">グリッドビュー</string>
+    <string name="enter_name">名前を入力してください</string>
+    <string name="nsfw_16">16歳以上</string>
+    <string name="theme_name_expressive">エクスプレス(テスト)</string>
+    <string name="pull_to_prev_chapter">前の章を開く</string>
+    <string name="pull_to_next_chapter">次の章を開く</string>
+    <string name="state_abandoned">ドロップ</string>
+    <string name="speed_value">x%.1f</string>
+    <string name="lock_screen_rotation">ロック スクリーンの回転</string>
+    <string name="manage_sources">ソースの管理</string>
+    <string name="manual">マニュアル</string>
+    <string name="available_d">利用可能: %1$d</string>
+    <string name="reader_optimize_summary">画面外ページの品質を下げ、メモリ使用量を削減する</string>
+    <string name="state">ステータス</string>
+    <string name="error_filter_states_genre_not_supported">両方のジャンルや状態のフィルタリングは、このソースではサポートされていません</string>
+    <string name="volume_unknown">未知のボリューム</string>
+    <string name="vertical">プロフィール</string>
+    <string name="last_read">最近の投稿</string>
+    <string name="reader_actions">リーダーの動作</string>
+    <string name="none">なし</string>
+    <string name="two_page_scroll_sensitivity">2ページスクロール感度</string>
+    <string name="ask_for_dest_dir_every_time">毎回、目的のディレクトリを指定してください</string>
+    <string name="default_page_save_dir">デフォルトページ保存ディレクトリ</string>
+    <string name="location">アクセス</string>
+    <string name="reading_stats">統計を読む</string>
+    <string name="all_time">すべての時間</string>
+    <string name="pages_read_s">ページの読み込み: %s</string>
+    <string name="migrate_confirmation">「%2$s」から「%3$s」を「%4$s」に置き換えられます</string>
+    <string name="chapters_deleted_pattern">%1$s を削除し、%2$s をクリア</string>
+    <string name="split_by_translations">翻訳によるスプリット</string>
+    <string name="order_oldest">最新記事</string>
+    <string name="long_ago_read">昔読んだ</string>
+    <string name="enable_source">ソースを有効にする</string>
+    <string name="last_used">最後の使用</string>
+    <string name="show_updated">更新情報</string>
+    <string name="more_frequently">より頻繁に</string>
+    <string name="recent_queries">最近の質問</string>
+    <string name="suggested_queries">提案されたクエリ</string>
+    <string name="sources_disabled">無効なソース</string>
+    <string name="disable_connectivity_check">接続チェックを無効にする</string>
+    <string name="tracker_debug_info">新しいチャプターログの確認</string>
+    <string name="tracker_debug_info_summary">新規チャプター向けバックグラウンドチェックに関するデバッグ情報</string>
+    <string name="_new">新しい</string>
+    <string name="image_server">優先画像サーバ</string>
+    <string name="pin">ピン</string>
+    <string name="unpin">ピンを外す</string>
+    <string name="source_pinned">ソース ピン留め</string>
 </resources>

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

@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <plurals name="new_chapters">
+        <item quantity="one">%1$d nieuwe hoofdstuk</item>
+        <item quantity="other">%1$d nieuwe hoofdstukken</item>
+    </plurals>
+    <plurals name="chapters">
+        <item quantity="one">%1$d hoofdstuk</item>
+        <item quantity="other">%1$d hoofdstukken</item>
+    </plurals>
+    <plurals name="minutes_ago">
+        <item quantity="one">%1$d minuut geleden</item>
+        <item quantity="other">%1$d minuten geleden</item>
+    </plurals>
+    <plurals name="hours_ago">
+        <item quantity="one">%1$d uur geleden</item>
+        <item quantity="other">%1$d uren geleden</item>
+    </plurals>
+    <plurals name="days_ago">
+        <item quantity="one">%1$d dag geleden</item>
+        <item quantity="other">%1$d dagen geleden</item>
+    </plurals>
+    <plurals name="months_ago">
+        <item quantity="one">%1$d maand geleden</item>
+        <item quantity="other">%1$d maanden geleden</item>
+    </plurals>
+    <plurals name="hours">
+        <item quantity="one">%1$d uur</item>
+        <item quantity="other">%1$d uren</item>
+    </plurals>
+    <plurals name="minutes">
+        <item quantity="one">%1$d minuut</item>
+        <item quantity="other">%1$d minuten</item>
+    </plurals>
+</resources>