Draft double reader implementation

Currently translated at 100.0% (489 of 489 strings)

Co-authored-by: Eduardo Malaspina <vaio0@swismail.com>
Translate-URL: https://hosted.weblate.org/projects/kotatsu/strings/es/
Translation: Kotatsu/Strings

.editorconfig

@@ -13,6 +13,7 @@ disabled_rules = no-wildcard-imports, no-unused-imports
 
 [{*.ant,*.fxml,*.jhm,*.jnlp,*.jrxml,*.rng,*.tld,*.wsdl,*.xml,*.xsd,*.xsl,*.xslt,*.xul}]
 ij_continuation_indent_size = 4
+ij_xml_attribute_wrap = on_every_item
 
 [{*.kt,*.kts}]
 ij_kotlin_allow_trailing_comma_on_call_site = true

.idea/gradle.xml

@@ -4,6 +4,7 @@
   <component name="GradleSettings">
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>
+        <option name="testRunner" value="GRADLE" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
         <option name="gradleJvm" value="jbr-17" />
         <option name="modules">

CONTRIBUTING.md

@@ -0,0 +1,11 @@
+## Kotatsu contribution guidelines
+
+- If you want to fix bug or implement a new feature, that already mention in the [issues](https://github.com/KotatsuApp/Kotatsu/issues), please, assign this issue to you and/or comment about it.
+- Whether you have to implement new feature, please, open an issue or discussion regarding it to ensure it will be accepted.
+- Translations have to be managed using the [Weblate](https://hosted.weblate.org/engage/kotatsu/) platform.
+- In case you want to add a new manga source, refer to the [parsers repository](https://github.com/KotatsuApp/kotatsu-parsers).
+
+Refactoring or some dev-faces improvements are also might be accepted, however please stick to the following principles:
+- Performance matters. In the case of choosing between source code beauty and performance, performance should be a priority. 
+- Please, do not modify readme and other information files (except for typos).
+- Avoid adding new dependencies unless required. APK size is important.

README.md

@@ -39,6 +39,10 @@ Kotatsu is a free and open source manga reader for Android.
 Kotatsu is localized in a number of different languages, if you would like to help improve these or add new languages,
 please head over to the [Weblate project page](https://hosted.weblate.org/engage/kotatsu/)
 
+### Contributing
+
+See [CONTRIBUTING.md](./CONTRIBUTING.md) for the guidelines.
+
 ### License
 
 [![GNU GPLv3 Image](https://www.gnu.org/graphics/gplv3-127x51.png)](http://www.gnu.org/licenses/gpl-3.0.en.html)

app/build.gradle

@@ -2,30 +2,29 @@ plugins {
 	id 'com.android.application'
 	id 'kotlin-android'
 	id 'kotlin-kapt'
+	id 'com.google.devtools.ksp'
 	id 'kotlin-parcelize'
 	id 'dagger.hilt.android.plugin'
 }
 
 android {
-	compileSdk = 33
+	compileSdk = 34
-	buildToolsVersion = '33.0.2'
+	buildToolsVersion = '34.0.0'
 	namespace = 'org.koitharu.kotatsu'
 
 	defaultConfig {
 		applicationId 'org.koitharu.kotatsu'
-		minSdkVersion 21
+		minSdk = 21
-		//TODO: update as soon as sources becomes available
+		targetSdk = 34
-		//noinspection OldTargetApi
+		versionCode = 584
-		targetSdkVersion 33
+		versionName = '6.1.6'
-		versionCode 566
-		versionName '5.3.9'
 		generatedDensities = []
-		testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+		testInstrumentationRunner "org.koitharu.kotatsu.HiltTestRunner"
-
+		ksp {
-		kapt {
+			arg("room.schemaLocation", "$projectDir/schemas")
-			arguments {
+		}
-				arg 'room.schemaLocation', "$projectDir/schemas".toString()
+		androidResources {
-			}
+			generateLocaleConfig true
 		}
 	}
 	buildTypes {
@@ -41,6 +40,7 @@ android {
 	}
 	buildFeatures {
 		viewBinding true
+		buildConfig true
 	}
 	sourceSets {
 		androidTest.assets.srcDirs += files("$projectDir/schemas".toString())
@@ -81,30 +81,29 @@ afterEvaluate {
 }
 dependencies {
 	//noinspection GradleDependency
-	implementation('com.github.KotatsuApp:kotatsu-parsers:42cc0430f8') {
+	implementation('com.github.KotatsuApp:kotatsu-parsers:400a90464e') {
 		exclude group: 'org.json', module: 'json'
 	}
 
-	implementation 'org.jetbrains.kotlin:kotlin-stdlib:1.8.22'
+	implementation 'org.jetbrains.kotlin:kotlin-stdlib:1.9.10'
-	implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.7.2'
+	implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.7.3'
 
 	implementation 'androidx.appcompat:appcompat:1.6.1'
-	implementation 'androidx.core:core-ktx:1.10.1'
+	implementation 'androidx.core:core-ktx:1.12.0'
-	implementation 'androidx.activity:activity-ktx:1.7.2'
+	implementation 'androidx.activity:activity-ktx:1.8.0'
-	implementation 'androidx.fragment:fragment-ktx:1.6.0'
+	implementation 'androidx.fragment:fragment-ktx:1.6.1'
-	implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.6.1'
+	implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.6.2'
-	implementation 'androidx.lifecycle:lifecycle-livedata-ktx:2.6.1'
+	implementation 'androidx.lifecycle:lifecycle-livedata-ktx:2.6.2'
-	implementation 'androidx.lifecycle:lifecycle-service:2.6.1'
+	implementation 'androidx.lifecycle:lifecycle-service:2.6.2'
-	implementation 'androidx.lifecycle:lifecycle-process:2.6.1'
+	implementation 'androidx.lifecycle:lifecycle-process:2.6.2'
 	implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
 	implementation 'androidx.swiperefreshlayout:swiperefreshlayout:1.1.0'
-	implementation 'androidx.recyclerview:recyclerview:1.3.0'
+	implementation 'androidx.recyclerview:recyclerview:1.3.1'
 	implementation 'androidx.viewpager2:viewpager2:1.1.0-beta02'
-	implementation 'androidx.preference:preference-ktx:1.2.0'
+	implementation 'androidx.preference:preference-ktx:1.2.1'
 	implementation 'androidx.biometric:biometric-ktx:1.2.0-alpha05'
-	implementation 'com.google.android.material:material:1.9.0'
+	implementation 'com.google.android.material:material:1.10.0'
-	//noinspection LifecycleAnnotationProcessorWithJava8
+	implementation 'androidx.lifecycle:lifecycle-common-java8:2.6.2'
-	kapt 'androidx.lifecycle:lifecycle-compiler:2.6.1'
 
 	// TODO https://issuetracker.google.com/issues/254846063
 	implementation 'androidx.work:work-runtime-ktx:2.8.1'
@@ -117,46 +116,45 @@ dependencies {
 
 	implementation 'androidx.room:room-runtime:2.5.2'
 	implementation 'androidx.room:room-ktx:2.5.2'
-	//noinspection KaptUsageInsteadOfKsp
+	ksp 'androidx.room:room-compiler:2.5.2'
-	kapt 'androidx.room:room-compiler:2.5.2'
 
 	implementation 'com.squareup.okhttp3:okhttp:4.11.0'
 	implementation 'com.squareup.okhttp3:okhttp-dnsoverhttps:4.11.0'
-	implementation 'com.squareup.okio:okio:3.4.0'
+	implementation 'com.squareup.okio:okio:3.6.0'
 
 	implementation 'com.hannesdorfmann:adapterdelegates4-kotlin-dsl:4.3.2'
 	implementation 'com.hannesdorfmann:adapterdelegates4-kotlin-dsl-viewbinding:4.3.2'
 
-	implementation 'com.google.dagger:hilt-android:2.47'
+	implementation 'com.google.dagger:hilt-android:2.48.1'
-	kapt 'com.google.dagger:hilt-compiler:2.47'
+	kapt 'com.google.dagger:hilt-compiler:2.48.1'
 	implementation 'androidx.hilt:hilt-work:1.0.0'
 	kapt 'androidx.hilt:hilt-compiler:1.0.0'
 
 	implementation 'io.coil-kt:coil-base:2.4.0'
 	implementation 'io.coil-kt:coil-svg:2.4.0'
-	implementation 'com.github.KotatsuApp:subsampling-scale-image-view:9b1d20be67'
+	implementation 'com.github.KotatsuApp:subsampling-scale-image-view:169806d928'
 	implementation 'com.github.solkin:disk-lru-cache:1.4'
 	implementation 'io.noties.markwon:core:4.6.2'
 
-	implementation 'ch.acra:acra-http:5.11.0'
+	implementation 'ch.acra:acra-http:5.11.2'
-	implementation 'ch.acra:acra-dialog:5.11.0'
+	implementation 'ch.acra:acra-dialog:5.11.2'
 
 	debugImplementation 'com.squareup.leakcanary:leakcanary-android:2.12'
 
 	testImplementation 'junit:junit:4.13.2'
 	testImplementation 'org.json:json:20230618'
-	testImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:1.7.2'
+	testImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:1.7.3'
 
 	androidTestImplementation 'androidx.test:runner:1.5.2'
 	androidTestImplementation 'androidx.test:rules:1.5.0'
 	androidTestImplementation 'androidx.test:core-ktx:1.5.0'
 	androidTestImplementation 'androidx.test.ext:junit-ktx:1.1.5'
 
-	androidTestImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:1.7.2'
+	androidTestImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:1.7.3'
 
 	androidTestImplementation 'androidx.room:room-testing:2.5.2'
 	androidTestImplementation 'com.squareup.moshi:moshi-kotlin:1.15.0'
 
-	androidTestImplementation 'com.google.dagger:hilt-android-testing:2.47'
+	androidTestImplementation 'com.google.dagger:hilt-android-testing:2.48.1'
-	kaptAndroidTest 'com.google.dagger:hilt-android-compiler:2.47'
+	kaptAndroidTest 'com.google.dagger:hilt-android-compiler:2.48.1'
 }

app/src/androidTest/kotlin/org/koitharu/kotatsu/HiltTestRunner.kt

@@ -0,0 +1,13 @@
+package org.koitharu.kotatsu
+
+import android.app.Application
+import android.content.Context
+import androidx.test.runner.AndroidJUnitRunner
+import dagger.hilt.android.testing.HiltTestApplication
+
+class HiltTestRunner : AndroidJUnitRunner() {
+
+    override fun newApplication(cl: ClassLoader?, name: String?, context: Context?): Application {
+        return super.newApplication(cl, HiltTestApplication::class.java.name, context)
+    }
+}

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

@@ -17,7 +17,7 @@ class MangaDatabaseTest {
 		MangaDatabase::class.java,
 	)
 
-	private val migrations = databaseMigrations
+	private val migrations = getDatabaseMigrations(InstrumentationRegistry.getInstrumentation().targetContext)
 
 	@Test
 	fun versions() {

app/src/androidTest/kotlin/org/koitharu/kotatsu/core/os/AppShortcutManagerTest.kt

@@ -48,6 +48,7 @@ class AppShortcutManagerTest {
 		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N_MR1) {
 			return@runTest
 		}
+		database.invalidationTracker.addObserver(appShortcutManager)
 		awaitUpdate()
 		assertTrue(getShortcuts().isEmpty())
 		historyRepository.addOrUpdate(

app/src/debug/java/org/koitharu/kotatsu/core/util/LoggingAdapterDataObserver.kt

@@ -1,37 +0,0 @@
-package org.koitharu.kotatsu.core.util
-
-import android.util.Log
-import androidx.recyclerview.widget.RecyclerView.AdapterDataObserver
-
-class LoggingAdapterDataObserver(
-	private val tag: String,
-) : AdapterDataObserver() {
-
-	override fun onChanged() {
-		Log.d(tag, "onChanged()")
-	}
-
-	override fun onItemRangeChanged(positionStart: Int, itemCount: Int) {
-		Log.d(tag, "onItemRangeChanged(positionStart=$positionStart, itemCount=$itemCount)")
-	}
-
-	override fun onItemRangeChanged(positionStart: Int, itemCount: Int, payload: Any?) {
-		Log.d(tag, "onItemRangeChanged(positionStart=$positionStart, itemCount=$itemCount, payload=$payload)")
-	}
-
-	override fun onItemRangeInserted(positionStart: Int, itemCount: Int) {
-		Log.d(tag, "onItemRangeInserted(positionStart=$positionStart, itemCount=$itemCount)")
-	}
-
-	override fun onItemRangeRemoved(positionStart: Int, itemCount: Int) {
-		Log.d(tag, "onItemRangeRemoved(positionStart=$positionStart, itemCount=$itemCount)")
-	}
-
-	override fun onItemRangeMoved(fromPosition: Int, toPosition: Int, itemCount: Int) {
-		Log.d(tag, "onItemRangeMoved(fromPosition=$fromPosition, toPosition=$toPosition, itemCount=$itemCount)")
-	}
-
-	override fun onStateRestorationPolicyChanged() {
-		Log.d(tag, "onStateRestorationPolicyChanged()")
-	}
-}

app/src/debug/kotlin/org/koitharu/kotatsu/KotatsuApp.kt

@@ -0,0 +1,45 @@
+package org.koitharu.kotatsu
+
+import android.content.Context
+import android.os.StrictMode
+import androidx.fragment.app.strictmode.FragmentStrictMode
+import org.koitharu.kotatsu.core.BaseApp
+import org.koitharu.kotatsu.local.data.LocalMangaRepository
+import org.koitharu.kotatsu.local.data.PagesCache
+import org.koitharu.kotatsu.parsers.MangaLoaderContext
+import org.koitharu.kotatsu.reader.domain.PageLoader
+
+class KotatsuApp : BaseApp() {
+
+	override fun attachBaseContext(base: Context?) {
+		super.attachBaseContext(base)
+		enableStrictMode()
+	}
+
+	private fun enableStrictMode() {
+		StrictMode.setThreadPolicy(
+			StrictMode.ThreadPolicy.Builder()
+				.detectAll()
+				.penaltyLog()
+				.build(),
+		)
+		StrictMode.setVmPolicy(
+			StrictMode.VmPolicy.Builder()
+				.detectAll()
+				.setClassInstanceLimit(LocalMangaRepository::class.java, 1)
+				.setClassInstanceLimit(PagesCache::class.java, 1)
+				.setClassInstanceLimit(MangaLoaderContext::class.java, 1)
+				.setClassInstanceLimit(PageLoader::class.java, 1)
+				.penaltyLog()
+				.build(),
+		)
+		FragmentStrictMode.defaultPolicy = FragmentStrictMode.Policy.Builder()
+			.penaltyDeath()
+			.detectFragmentReuse()
+			// .detectWrongFragmentContainer() FIXME: migrate to ViewPager2
+			.detectRetainInstanceUsage()
+			.detectSetUserVisibleHint()
+			.detectFragmentTagUsage()
+			.build()
+	}
+}

app/src/main/AndroidManifest.xml

@@ -18,6 +18,8 @@
 	<uses-permission android:name="android.permission.READ_SYNC_SETTINGS" />
 	<uses-permission android:name="android.permission.WRITE_SYNC_SETTINGS" />
 	<uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
+	<uses-permission android:name="android.permission.FOREGROUND_SERVICE_DATA_SYNC" />
+	<uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
 	<uses-permission
 		android:name="android.permission.WRITE_EXTERNAL_STORAGE"
 		android:maxSdkVersion="29" />
@@ -46,7 +48,6 @@
 		android:icon="@mipmap/ic_launcher"
 		android:label="@string/app_name"
 		android:largeHeap="true"
-		android:localeConfig="@xml/locales"
 		android:networkSecurityConfig="@xml/network_security_config"
 		android:requestLegacyExternalStorage="true"
 		android:roundIcon="@mipmap/ic_launcher_round"
@@ -71,6 +72,17 @@
 			<intent-filter>
 				<action android:name="${applicationId}.action.VIEW_MANGA" />
 			</intent-filter>
+			<intent-filter android:autoVerify="true">
+				<action android:name="android.intent.action.VIEW" />
+
+				<category android:name="android.intent.category.DEFAULT" />
+				<category android:name="android.intent.category.BROWSABLE" />
+
+				<data android:scheme="http" />
+				<data android:scheme="https" />
+				<data android:host="kotatsu.app" />
+				<data android:path="/manga" />
+			</intent-filter>
 		</activity>
 		<activity
 			android:name="org.koitharu.kotatsu.reader.ui.ReaderActivity"
@@ -84,7 +96,12 @@
 			android:label="@string/search" />
 		<activity
 			android:name="org.koitharu.kotatsu.search.ui.MangaListActivity"
-			android:label="@string/search_manga" />
+			android:exported="true"
+			android:label="@string/manga_list">
+			<intent-filter>
+				<action android:name="${applicationId}.action.EXPLORE_MANGA" />
+			</intent-filter>
+		</activity>
 		<activity
 			android:name="org.koitharu.kotatsu.history.ui.HistoryActivity"
 			android:label="@string/history" />
@@ -100,6 +117,9 @@
 		<activity
 			android:name="org.koitharu.kotatsu.suggestions.ui.SuggestionsActivity"
 			android:label="@string/suggestions" />
+		<activity
+			android:name="org.koitharu.kotatsu.details.ui.related.RelatedMangaActivity"
+			android:label="@string/related_manga" />
 		<activity
 			android:name="org.koitharu.kotatsu.settings.SettingsActivity"
 			android:exported="true"
@@ -124,6 +144,7 @@
 			android:windowSoftInputMode="adjustResize" />
 		<activity
 			android:name="org.koitharu.kotatsu.browser.cloudflare.CloudFlareActivity"
+			android:autoRemoveFromRecents="true"
 			android:configChanges="orientation|screenSize|screenLayout|keyboardHidden"
 			android:windowSoftInputMode="adjustResize" />
 		<activity
@@ -132,16 +153,23 @@
 			android:windowSoftInputMode="adjustResize" />
 		<activity
 			android:name="org.koitharu.kotatsu.favourites.ui.categories.FavouriteCategoriesActivity"
-			android:label="@string/favourites"
+			android:label="@string/manage_categories" />
-			android:windowSoftInputMode="stateAlwaysHidden" />
 		<activity
-			android:name="org.koitharu.kotatsu.widget.shelf.ShelfConfigActivity"
+			android:name="org.koitharu.kotatsu.widget.shelf.ShelfWidgetConfigActivity"
 			android:exported="true"
 			android:label="@string/manga_shelf">
 			<intent-filter>
 				<action android:name="android.appwidget.action.APPWIDGET_CONFIGURE" />
 			</intent-filter>
 		</activity>
+		<activity
+			android:name="org.koitharu.kotatsu.widget.recent.RecentWidgetConfigActivity"
+			android:exported="true"
+			android:label="@string/recent_manga">
+			<intent-filter>
+				<action android:name="android.appwidget.action.APPWIDGET_CONFIGURE" />
+			</intent-filter>
+		</activity>
 		<activity
 			android:name="org.koitharu.kotatsu.search.ui.multi.MultiSearchActivity"
 			android:label="@string/search" />
@@ -164,9 +192,6 @@
 		<activity
 			android:name="org.koitharu.kotatsu.reader.ui.colorfilter.ColorFilterConfigActivity"
 			android:label="@string/color_correction" />
-		<activity
-			android:name="org.koitharu.kotatsu.shelf.ui.config.ShelfSettingsActivity"
-			android:label="@string/settings" />
 		<activity
 			android:name="org.koitharu.kotatsu.scrobbling.common.ui.config.ScrobblerConfigActivity"
 			android:exported="true"
@@ -187,7 +212,13 @@
 
 		</activity>
 
-		<service android:name="org.koitharu.kotatsu.local.ui.LocalChaptersRemoveService" />
+		<service
+			android:name="androidx.work.impl.foreground.SystemForegroundService"
+			android:foregroundServiceType="dataSync"
+			tools:node="merge" />
+		<service
+			android:name="org.koitharu.kotatsu.local.ui.LocalChaptersRemoveService"
+			android:foregroundServiceType="dataSync" />
 		<service
 			android:name="org.koitharu.kotatsu.widget.shelf.ShelfWidgetService"
 			android:permission="android.permission.BIND_REMOTEVIEWS" />
@@ -289,6 +320,13 @@
 				android:name="android.appwidget.provider"
 				android:resource="@xml/widget_recent" />
 		</receiver>
+		<receiver
+			android:name="org.koitharu.kotatsu.settings.about.UpdateDownloadReceiver"
+			android:exported="true">
+			<intent-filter>
+				<action android:name="android.intent.action.DOWNLOAD_COMPLETE" />
+			</intent-filter>
+		</receiver>
 
 		<meta-data
 			android:name="android.webkit.WebView.EnableSafeBrowsing"
@@ -300,6 +338,660 @@
 			android:name="com.samsung.android.icon_container.has_icon_container"
 			android:value="@bool/com_samsung_android_icon_container_has_icon_container" />
 
+		<activity-alias
+			android:name="org.koitharu.kotatsu.details.ui.DetailsBYLinkActivity"
+			android:exported="true"
+			android:targetActivity="org.koitharu.kotatsu.details.ui.DetailsActivity">
+
+			<intent-filter android:autoVerify="false">
+				<action android:name="android.intent.action.VIEW" />
+
+				<category android:name="android.intent.category.DEFAULT" />
+				<category android:name="android.intent.category.BROWSABLE" />
+
+				<data android:scheme="http" />
+				<data android:scheme="https" />
+				<data android:host="1stkissmanga.me" />
+				<data android:host="3asq.org" />
+				<data android:host="18porncomic.com" />
+				<data android:host="212.32.226.234" />
+				<data android:host="247manga.com" />
+				<data android:host="365manga.com" />
+				<data android:host="2023.allhen.online" />
+				<data android:host="adultwebtoon.com" />
+				<data android:host="afroditscans.com" />
+				<data android:host="ainzscans.site" />
+				<data android:host="aiyumanga.com" />
+				<data android:host="alceascan.my.id" />
+				<data android:host="allporncomic.com" />
+				<data android:host="anibel.net" />
+				<data android:host="anigliscans.com" />
+				<data android:host="anikiga.com" />
+				<data android:host="animaregia.net" />
+				<data android:host="anisamanga.com" />
+				<data android:host="anshscans.org" />
+				<data android:host="apenasmaisumyaoi.com" />
+				<data android:host="apollcomics.com" />
+				<data android:host="aquamanga.com" />
+				<data android:host="arabtoons.net" />
+				<data android:host="araznovel.com" />
+				<data android:host="arcanescans.com" />
+				<data android:host="arenascans.net" />
+				<data android:host="arthurscan.xyz" />
+				<data android:host="astral-manga.fr" />
+				<data android:host="astrallibrary.net" />
+				<data android:host="astrumscans.xyz" />
+				<data android:host="asura.nacm.xyz" />
+				<data android:host="asurascanstr.com" />
+				<data android:host="athenafansub.com" />
+				<data android:host="ayatoon.com" />
+				<data android:host="azoranov.com" />
+				<data android:host="azuremanga.com" />
+				<data android:host="babeltoon.com" />
+				<data android:host="bakai.org" />
+				<data android:host="bakaman.net" />
+				<data android:host="bakamh.com" />
+				<data android:host="banana-scan.com" />
+				<data android:host="bato.to" />
+				<data android:host="batocomic.com" />
+				<data android:host="batocomic.net" />
+				<data android:host="batocomic.org" />
+				<data android:host="batotoo.com" />
+				<data android:host="batotwo.com" />
+				<data android:host="battwo.com" />
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+				<data android:host="reaperscans.fr" />
+				<data android:host="remanga.org" />
+				<data android:host="rightdark-scan.com" />
+				<data android:host="rio2manga.com" />
+				<data android:host="rio2manga.net" />
+				<data android:host="rogmangas.com" />
+				<data android:host="romantikmanga.com" />
+				<data android:host="ru.ninemanga.com" />
+				<data android:host="s2manga.com" />
+				<data android:host="samuraiscan.com" />
+				<data android:host="sawamics.com" />
+				<data android:host="saytruyenhay.com" />
+				<data android:host="scambertraslator.com" />
+				<data android:host="scan.hentai.menu" />
+				<data android:host="scanmanga-vf.ws" />
+				<data android:host="scansmangas.me" />
+				<data android:host="scansraw.com" />
+				<data android:host="scantrad-union.com" />
+				<data android:host="scantrad-vf.co" />
+				<data android:host="sekaikomik.pro" />
+				<data android:host="sektedoujin.cc" />
+				<data android:host="sektekomik.xyz" />
+				<data android:host="selfmanga.live" />
+				<data android:host="senpaiediciones.com" />
+				<data android:host="shadowmangas.com" />
+				<data android:host="shadowtrad.net" />
+				<data android:host="sheakomik.com" />
+				<data android:host="shibamanga.com" />
+				<data android:host="shinigami.id" />
+				<data android:host="shirodoujin.com" />
+				<data android:host="shootingstarscans.com" />
+				<data android:host="silencescan.com.br" />
+				<data android:host="sinensisscans.com" />
+				<data android:host="skanlacje-feniksy.pl" />
+				<data android:host="skymanga.work" />
+				<data android:host="skymangas.com" />
+				<data android:host="sleepytranslations.com" />
+				<data android:host="soulscans.my.id" />
+				<data android:host="spartanmanga.com.tr" />
+				<data android:host="sssscanlator.com" />
+				<data android:host="summanga.com" />
+				<data android:host="suryascans.com" />
+				<data android:host="sushiscan.fr" />
+				<data android:host="sushiscan.net" />
+				<data android:host="swatop.club" />
+				<data android:host="tankouhentai.com" />
+				<data android:host="tatakaescan.com" />
+				<data android:host="tecnoscann.com" />
+				<data android:host="teenmanhua.com" />
+				<data android:host="tempestfansub.com" />
+				<data android:host="templescan.net" />
+				<data android:host="templescanesp.com" />
+				<data android:host="tenkaiscan.net" />
+				<data android:host="theguildscans.com" />
+				<data android:host="thesugarscan.com" />
+				<data android:host="timenaight.com" />
+				<data android:host="todaymic.com" />
+				<data android:host="tonizutoon.com" />
+				<data android:host="toonchill.com" />
+				<data android:host="toonfr.com" />
+				<data android:host="toonhunter.com" />
+				<data android:host="toonily.com" />
+				<data android:host="toonily.me" />
+				<data android:host="toonily.net" />
+				<data android:host="toonitube.com" />
+				<data android:host="tortuga-ceviri.com" />
+				<data android:host="traduccionesmoonlight.com" />
+				<data android:host="treemanga.com" />
+				<data android:host="tritinia.org" />
+				<data android:host="truemanga.com" />
+				<data android:host="truyentranhlh.net" />
+				<data android:host="tsundoku.com.br" />
+				<data android:host="tukangkomik.id" />
+				<data android:host="tumanhwas.club" />
+				<data android:host="turktoon.com" />
+				<data android:host="v2.comiz.net" />
+				<data android:host="valkyriescan.com" />
+				<data android:host="vercomicsporno.com" />
+				<data android:host="vermangasporno.com" />
+				<data android:host="vermanhwa.es" />
+				<data android:host="viyafansub.com" />
+				<data android:host="void-scans.com" />
+				<data android:host="w.mangairo.com" />
+				<data android:host="wakamics.net" />
+				<data android:host="webcomic.me" />
+				<data android:host="webtoon-tr.com" />
+				<data android:host="webtoon.uk" />
+				<data android:host="webtoonempire.org" />
+				<data android:host="webtoonhatti.com" />
+				<data android:host="webtoons.top" />
+				<data android:host="webtoonscan.com" />
+				<data android:host="weloma.art" />
+				<data android:host="welovemanga.one" />
+				<data android:host="westmanga.info" />
+				<data android:host="wickedwitchscan.com" />
+				<data android:host="winterscan.com" />
+				<data android:host="wonderlandscan.com" />
+				<data android:host="woopread.com" />
+				<data android:host="worldmanhwas.bar" />
+				<data android:host="wto.to" />
+				<data android:host="www1.bluesolo.org" />
+				<data android:host="www.areascans.net" />
+				<data android:host="www.bentomanga.com" />
+				<data android:host="www.eromiau.com" />
+				<data android:host="www.inu-manga.com" />
+				<data android:host="www.japscan.lol" />
+				<data android:host="www.kuroimanga.com" />
+				<data android:host="www.lami-manga.com" />
+				<data android:host="www.lelmanga.com" />
+				<data android:host="www.lianscans.my.id" />
+				<data android:host="www.maid.my.id" />
+				<data android:host="www.majorscans.com" />
+				<data android:host="www.mangadods.com" />
+				<data android:host="www.mangaread.org" />
+				<data android:host="www.mangascantrad.fr" />
+				<data android:host="www.mangatown.com" />
+				<data android:host="www.manhuabug.com" />
+				<data android:host="www.manhuakey.com" />
+				<data android:host="www.manhuasy.com" />
+				<data android:host="www.menudo-fansub.com" />
+				<data android:host="www.nettruyenmax.com" />
+				<data android:host="www.nettruyento.com" />
+				<data android:host="www.nightcomic.com" />
+				<data android:host="www.ninemanga.com" />
+				<data android:host="www.noblessetranslations.com" />
+				<data android:host="www.pantheon-scan.fr" />
+				<data android:host="www.paritehaber.com" />
+				<data android:host="www.peachscan.com" />
+				<data android:host="www.petrotechsociety.org" />
+				<data android:host="www.petrotechsociety.org" />
+				<data android:host="www.ramareader.it" />
+				<data android:host="www.rh2plusmanga.com" />
+				<data android:host="www.ruyamanga.com" />
+				<data android:host="www.scan-fr.org" />
+				<data android:host="www.scan-vf.net" />
+				<data android:host="www.thaimanga.net" />
+				<data android:host="www.topmanhua.com" />
+				<data android:host="www.vfscan.com" />
+				<data android:host="www.walpurgiscan.it" />
+				<data android:host="www.webtoon.xyz" />
+				<data android:host="www.witcomics.net" />
+				<data android:host="www.xn--l3c0azab5a2gta.com" />
+				<data android:host="www.yaoitoshokan.net" />
+				<data android:host="xbato.com" />
+				<data android:host="xbato.net" />
+				<data android:host="xbato.org" />
+				<data android:host="xoxocomics.net" />
+				<data android:host="xx.hentaichan.live" />
+				<data android:host="xxx.hentaichan.live" />
+				<data android:host="y.hentaichan.live" />
+				<data android:host="yaoi-chan.me" />
+				<data android:host="yaoi.mobi" />
+				<data android:host="yaoilib.me" />
+				<data android:host="yaoiscan.com" />
+				<data android:host="ycscan.com" />
+				<data android:host="yugenmangas.com.br" />
+				<data android:host="yuri.live" />
+				<data android:host="zahard.xyz" />
+				<data android:host="zandynofansub.aishiteru.org" />
+				<data android:host="zbato.com" />
+				<data android:host="zbato.net" />
+				<data android:host="zbato.org" />
+				<data android:host="zeroscan.com.br" />
+				<data android:host="zinmanga.com" />
+				<data android:host="zinmanhwa.com" />
+				<data android:host="zuttomanga.com" />
+				<data android:host="реманга.орг" />
+			</intent-filter>
+		</activity-alias>
+
 	</application>
 
 </manifest>

app/src/main/kotlin/org/koitharu/kotatsu/bookmarks/data/BookmarksDao.kt

@@ -5,6 +5,7 @@ import androidx.room.Delete
 import androidx.room.Insert
 import androidx.room.Query
 import androidx.room.Transaction
+import androidx.room.Upsert
 import kotlinx.coroutines.flow.Flow
 import org.koitharu.kotatsu.core.db.entity.MangaWithTags
 
@@ -14,15 +15,24 @@ abstract class BookmarksDao {
 	@Query("SELECT * FROM bookmarks WHERE manga_id = :mangaId AND page_id = :pageId")
 	abstract suspend fun find(mangaId: Long, pageId: Long): BookmarkEntity?
 
-	@Query("SELECT * FROM bookmarks WHERE manga_id = :mangaId AND chapter_id = :chapterId AND page = :page")
+	@Query("SELECT * FROM bookmarks WHERE page_id = :pageId")
+	abstract suspend fun find(pageId: Long): BookmarkEntity?
+
+	@Transaction
+	@Query(
+		"SELECT * FROM manga JOIN bookmarks ON bookmarks.manga_id = manga.manga_id ORDER BY percent",
+	)
+	abstract suspend fun findAll(): Map<MangaWithTags, List<BookmarkEntity>>
+
+	@Query("SELECT * FROM bookmarks WHERE manga_id = :mangaId AND chapter_id = :chapterId AND page = :page ORDER BY percent")
 	abstract fun observe(mangaId: Long, chapterId: Long, page: Int): Flow<BookmarkEntity?>
 
-	@Query("SELECT * FROM bookmarks WHERE manga_id = :mangaId ORDER BY created_at DESC")
+	@Query("SELECT * FROM bookmarks WHERE manga_id = :mangaId ORDER BY percent")
 	abstract fun observe(mangaId: Long): Flow<List<BookmarkEntity>>
 
 	@Transaction
 	@Query(
-		"SELECT * FROM manga JOIN bookmarks ON bookmarks.manga_id = manga.manga_id ORDER BY bookmarks.created_at",
+		"SELECT * FROM manga JOIN bookmarks ON bookmarks.manga_id = manga.manga_id ORDER BY percent",
 	)
 	abstract fun observe(): Flow<Map<MangaWithTags, List<BookmarkEntity>>>
 
@@ -35,6 +45,12 @@ abstract class BookmarksDao {
 	@Query("DELETE FROM bookmarks WHERE manga_id = :mangaId AND page_id = :pageId")
 	abstract suspend fun delete(mangaId: Long, pageId: Long): Int
 
+	@Query("DELETE FROM bookmarks WHERE page_id = :pageId")
+	abstract suspend fun delete(pageId: Long): Int
+
 	@Query("DELETE FROM bookmarks WHERE manga_id = :mangaId AND chapter_id = :chapterId AND page = :page")
 	abstract suspend fun delete(mangaId: Long, chapterId: Long, page: Int): Int
+
+	@Upsert
+	abstract suspend fun upsert(bookmarks: Collection<BookmarkEntity>)
 }

app/src/main/kotlin/org/koitharu/kotatsu/bookmarks/data/EntityMapping.kt

@@ -2,7 +2,7 @@ package org.koitharu.kotatsu.bookmarks.data
 
 import org.koitharu.kotatsu.bookmarks.domain.Bookmark
 import org.koitharu.kotatsu.parsers.model.Manga
-import java.util.*
+import java.util.Date
 
 fun BookmarkEntity.toBookmark(manga: Manga) = Bookmark(
 	manga = manga,
@@ -30,4 +30,5 @@ fun Collection<BookmarkEntity>.toBookmarks(manga: Manga) = map {
 	it.toBookmark(manga)
 }
 
-fun Collection<Bookmark>.ids() = map { it.pageId }
+@JvmName("bookmarksIds")
+fun Collection<Bookmark>.ids() = map { it.pageId }

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

@@ -1,11 +1,12 @@
 package org.koitharu.kotatsu.bookmarks.domain
 
+import org.koitharu.kotatsu.list.ui.model.ListModel
 import org.koitharu.kotatsu.local.data.ImageFileFilter
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaPage
 import java.util.Date
 
-class Bookmark(
+data class Bookmark(
 	val manga: Manga,
 	val pageId: Long,
 	val chapterId: Long,
@@ -14,11 +15,21 @@ class Bookmark(
 	val imageUrl: String,
 	val createdAt: Date,
 	val percent: Float,
-) {
+) : ListModel {
 
 	val directImageUrl: String?
 		get() = if (isImageUrlDirect()) imageUrl else null
 
+	val imageLoadData: Any
+		get() = if (isImageUrlDirect()) imageUrl else toMangaPage()
+
+	override fun areItemsTheSame(other: ListModel): Boolean {
+		return other is Bookmark &&
+			manga.id == other.manga.id &&
+			chapterId == other.chapterId &&
+			page == other.page
+	}
+
 	fun toMangaPage() = MangaPage(
 		id = pageId,
 		url = imageUrl,
@@ -30,32 +41,4 @@ class Bookmark(
 		val extension = imageUrl.substringAfterLast('.')
 		return extension.isNotEmpty() && ImageFileFilter().isExtensionValid(extension)
 	}
-
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as Bookmark
-
-		if (manga != other.manga) return false
-		if (pageId != other.pageId) return false
-		if (chapterId != other.chapterId) return false
-		if (page != other.page) return false
-		if (scroll != other.scroll) return false
-		if (imageUrl != other.imageUrl) return false
-		if (createdAt != other.createdAt) return false
-		return percent == other.percent
-	}
-
-	override fun hashCode(): Int {
-		var result = manga.hashCode()
-		result = 31 * result + pageId.hashCode()
-		result = 31 * result + chapterId.hashCode()
-		result = 31 * result + page
-		result = 31 * result + scroll
-		result = 31 * result + imageUrl.hashCode()
-		result = 31 * result + createdAt.hashCode()
-		result = 31 * result + percent.hashCode()
-		return result
-	}
 }

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

@@ -52,6 +52,13 @@ class BookmarksRepository @Inject constructor(
 		}
 	}
 
+	suspend fun updateBookmark(bookmark: Bookmark, imageUrl: String) {
+		val entity = bookmark.toEntity().copy(
+			imageUrl = imageUrl,
+		)
+		db.bookmarksDao.upsert(listOf(entity))
+	}
+
 	suspend fun removeBookmark(mangaId: Long, chapterId: Long, page: Int) {
 		check(db.bookmarksDao.delete(mangaId, chapterId, page) != 0) {
 			"Bookmark not found"
@@ -62,18 +69,16 @@ class BookmarksRepository @Inject constructor(
 		removeBookmark(bookmark.manga.id, bookmark.chapterId, bookmark.page)
 	}
 
-	suspend fun removeBookmarks(ids: Map<Manga, Set<Long>>): ReversibleHandle {
+	suspend fun removeBookmarks(ids: Set<Long>): ReversibleHandle {
 		val entities = ArrayList<BookmarkEntity>(ids.size)
 		db.withTransaction {
 			val dao = db.bookmarksDao
-			for ((manga, idSet) in ids) {
+			for (pageId in ids) {
-				for (pageId in idSet) {
+				val e = dao.find(pageId)
-					val e = dao.find(manga.id, pageId)
+				if (e != null) {
-					if (e != null) {
+					entities.add(e)
-						entities.add(e)
-					}
-					dao.delete(manga.id, pageId)
 				}
+				dao.delete(pageId)
 			}
 		}
 		return BookmarksRestorer(entities)

app/src/main/kotlin/org/koitharu/kotatsu/bookmarks/ui/BookmarksFragment.kt

@@ -12,33 +12,30 @@ import androidx.core.graphics.Insets
 import androidx.core.view.updateLayoutParams
 import androidx.core.view.updatePadding
 import androidx.fragment.app.viewModels
+import androidx.recyclerview.widget.GridLayoutManager
 import coil.ImageLoader
-import com.google.android.material.snackbar.Snackbar
 import dagger.hilt.android.AndroidEntryPoint
 import org.koitharu.kotatsu.R
-import org.koitharu.kotatsu.bookmarks.data.ids
 import org.koitharu.kotatsu.bookmarks.domain.Bookmark
-import org.koitharu.kotatsu.bookmarks.ui.adapter.BookmarksGroupAdapter
+import org.koitharu.kotatsu.bookmarks.ui.sheet.BookmarksAdapter
-import org.koitharu.kotatsu.bookmarks.ui.model.BookmarksGroup
 import org.koitharu.kotatsu.core.exceptions.resolve.SnackbarErrorObserver
+import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.ui.BaseFragment
+import org.koitharu.kotatsu.core.ui.list.ListSelectionController
 import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
-import org.koitharu.kotatsu.core.ui.list.SectionedSelectionController
-import org.koitharu.kotatsu.core.ui.list.decor.AbstractSelectionItemDecoration
-import org.koitharu.kotatsu.core.ui.list.decor.SpacingItemDecoration
 import org.koitharu.kotatsu.core.ui.list.fastscroll.FastScroller
-import org.koitharu.kotatsu.core.ui.util.ReversibleAction
+import org.koitharu.kotatsu.core.ui.util.ReversibleActionObserver
-import org.koitharu.kotatsu.core.ui.util.reverseAsync
-import org.koitharu.kotatsu.core.util.ext.invalidateNestedItemDecorations
 import org.koitharu.kotatsu.core.util.ext.observe
 import org.koitharu.kotatsu.core.util.ext.observeEvent
-import org.koitharu.kotatsu.core.util.ext.scaleUpActivityOptionsOf
 import org.koitharu.kotatsu.databinding.FragmentListSimpleBinding
 import org.koitharu.kotatsu.details.ui.DetailsActivity
+import org.koitharu.kotatsu.list.ui.MangaListSpanResolver
+import org.koitharu.kotatsu.list.ui.adapter.ListHeaderClickListener
+import org.koitharu.kotatsu.list.ui.adapter.ListItemType
 import org.koitharu.kotatsu.list.ui.adapter.ListStateHolderListener
-import org.koitharu.kotatsu.list.ui.model.ListModel
+import org.koitharu.kotatsu.list.ui.adapter.TypedListSpacingDecoration
+import org.koitharu.kotatsu.list.ui.model.ListHeader
 import org.koitharu.kotatsu.main.ui.owners.AppBarOwner
-import org.koitharu.kotatsu.main.ui.owners.SnackbarOwner
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.reader.ui.ReaderActivity
 import javax.inject.Inject
@@ -48,64 +45,90 @@ class BookmarksFragment :
 	BaseFragment<FragmentListSimpleBinding>(),
 	ListStateHolderListener,
 	OnListItemClickListener<Bookmark>,
-	SectionedSelectionController.Callback<Manga>,
+	ListSelectionController.Callback2,
-	FastScroller.FastScrollListener {
+	FastScroller.FastScrollListener, ListHeaderClickListener {
 
 	@Inject
 	lateinit var coil: ImageLoader
 
-	private val viewModel by viewModels<BookmarksViewModel>()
+	@Inject
-	private var adapter: BookmarksGroupAdapter? = null
+	lateinit var settings: AppSettings
-	private var selectionController: SectionedSelectionController<Manga>? = null
 
-	override fun onCreateViewBinding(inflater: LayoutInflater, container: ViewGroup?): FragmentListSimpleBinding {
+	private val viewModel by viewModels<BookmarksViewModel>()
+	private var bookmarksAdapter: BookmarksAdapter? = null
+	private var selectionController: ListSelectionController? = null
+
+	override fun onCreateViewBinding(
+		inflater: LayoutInflater,
+		container: ViewGroup?,
+	): FragmentListSimpleBinding {
 		return FragmentListSimpleBinding.inflate(inflater, container, false)
 	}
 
-	override fun onViewBindingCreated(binding: FragmentListSimpleBinding, savedInstanceState: Bundle?) {
+	override fun onViewBindingCreated(
+		binding: FragmentListSimpleBinding,
+		savedInstanceState: Bundle?,
+	) {
 		super.onViewBindingCreated(binding, savedInstanceState)
-		selectionController = SectionedSelectionController(
+		selectionController = ListSelectionController(
 			activity = requireActivity(),
-			owner = this,
+			decoration = BookmarksSelectionDecoration(binding.root.context),
+			registryOwner = this,
 			callback = this,
 		)
-		adapter = BookmarksGroupAdapter(
+		bookmarksAdapter = BookmarksAdapter(
 			lifecycleOwner = viewLifecycleOwner,
 			coil = coil,
-			listener = this,
+			clickListener = this,
-			selectionController = checkNotNull(selectionController),
+			headerClickListener = this,
-			bookmarkClickListener = this,
-			groupClickListener = OnGroupClickListener(),
 		)
-		binding.recyclerView.adapter = adapter
+		val spanSizeLookup = SpanSizeLookup()
-		binding.recyclerView.setHasFixedSize(true)
+		with(binding.recyclerView) {
-		val spacingDecoration = SpacingItemDecoration(resources.getDimensionPixelOffset(R.dimen.grid_spacing))
+			setHasFixedSize(true)
-		binding.recyclerView.addItemDecoration(spacingDecoration)
+			val spanResolver = MangaListSpanResolver(resources)
-
+			addItemDecoration(TypedListSpacingDecoration(context, false))
-		viewModel.content.observe(viewLifecycleOwner, ::onListChanged)
+			adapter = bookmarksAdapter
-		viewModel.onError.observeEvent(viewLifecycleOwner, SnackbarErrorObserver(binding.recyclerView, this))
+			addOnLayoutChangeListener(spanResolver)
-		viewModel.onActionDone.observeEvent(viewLifecycleOwner, ::onActionDone)
+			spanResolver.setGridSize(settings.gridSize / 100f, this)
+			val lm = GridLayoutManager(context, spanResolver.spanCount)
+			lm.spanSizeLookup = spanSizeLookup
+			layoutManager = lm
+			selectionController?.attachToRecyclerView(this)
+		}
+		viewModel.content.observe(viewLifecycleOwner) {
+			bookmarksAdapter?.setItems(it, spanSizeLookup)
+		}
+		viewModel.onError.observeEvent(
+			viewLifecycleOwner,
+			SnackbarErrorObserver(binding.recyclerView, this)
+		)
+		viewModel.onActionDone.observeEvent(viewLifecycleOwner, ReversibleActionObserver(binding.recyclerView))
 	}
 
 	override fun onDestroyView() {
 		super.onDestroyView()
-		adapter = null
+		bookmarksAdapter = null
 		selectionController = null
 	}
 
 	override fun onItemClick(item: Bookmark, view: View) {
-		if (selectionController?.onItemClick(item.manga, item.pageId) != true) {
+		if (selectionController?.onItemClick(item.pageId) != true) {
 			val intent = ReaderActivity.IntentBuilder(view.context)
 				.bookmark(item)
 				.incognito(true)
 				.build()
-			startActivity(intent, scaleUpActivityOptionsOf(view))
+			startActivity(intent)
 			Toast.makeText(view.context, R.string.incognito_mode, Toast.LENGTH_SHORT).show()
 		}
 	}
 
+	override fun onListHeaderClick(item: ListHeader, view: View) {
+		val manga = item.payload as? Manga ?: return
+		startActivity(DetailsActivity.newIntent(view.context, manga))
+	}
+
 	override fun onItemLongClick(item: Bookmark, view: View): Boolean {
-		return selectionController?.onItemLongClick(item.manga, item.pageId) ?: false
+		return selectionController?.onItemLongClick(item.pageId) ?: false
 	}
 
 	override fun onRetryClick(error: Throwable) = Unit
@@ -118,12 +141,12 @@ class BookmarksFragment :
 
 	override fun onFastScrollStop(fastScroller: FastScroller) = Unit
 
-	override fun onSelectionChanged(controller: SectionedSelectionController<Manga>, count: Int) {
+	override fun onSelectionChanged(controller: ListSelectionController, count: Int) {
-		requireViewBinding().recyclerView.invalidateNestedItemDecorations()
+		requireViewBinding().recyclerView.invalidateItemDecorations()
 	}
 
 	override fun onCreateActionMode(
-		controller: SectionedSelectionController<Manga>,
+		controller: ListSelectionController,
 		mode: ActionMode,
 		menu: Menu,
 	): Boolean {
@@ -132,7 +155,7 @@ class BookmarksFragment :
 	}
 
 	override fun onActionItemClicked(
-		controller: SectionedSelectionController<Manga>,
+		controller: ListSelectionController,
 		mode: ActionMode,
 		item: MenuItem,
 	): Boolean {
@@ -148,57 +171,46 @@ class BookmarksFragment :
 		}
 	}
 
-	override fun onCreateItemDecoration(
-		controller: SectionedSelectionController<Manga>,
-		section: Manga,
-	): AbstractSelectionItemDecoration = BookmarksSelectionDecoration(requireContext())
-
 	override fun onWindowInsetsChanged(insets: Insets) {
-		requireViewBinding().recyclerView.updatePadding(
+		val rv = requireViewBinding().recyclerView
-			bottom = insets.bottom,
+		rv.updatePadding(
+			bottom = insets.bottom + rv.paddingTop,
 		)
-		requireViewBinding().recyclerView.fastScroller.updateLayoutParams<ViewGroup.MarginLayoutParams> {
+		rv.fastScroller.updateLayoutParams<ViewGroup.MarginLayoutParams> {
 			bottomMargin = insets.bottom
 		}
 	}
 
-	private fun onListChanged(list: List<ListModel>) {
+	private inner class SpanSizeLookup : GridLayoutManager.SpanSizeLookup(), Runnable {
-		adapter?.items = list
-	}
 
-	private fun onActionDone(action: ReversibleAction) {
+		init {
-		val handle = action.handle
+			isSpanIndexCacheEnabled = true
-		val length = if (handle == null) Snackbar.LENGTH_SHORT else Snackbar.LENGTH_LONG
+			isSpanGroupIndexCacheEnabled = true
-		val snackbar = Snackbar.make((activity as SnackbarOwner).snackbarHost, action.stringResId, length)
-		if (handle != null) {
-			snackbar.setAction(R.string.undo) { handle.reverseAsync() }
 		}
-		snackbar.show()
-	}
 
-	private inner class OnGroupClickListener : OnListItemClickListener<BookmarksGroup> {
+		override fun getSpanSize(position: Int): Int {
-
+			val total = (viewBinding?.recyclerView?.layoutManager as? GridLayoutManager)?.spanCount
-		override fun onItemClick(item: BookmarksGroup, view: View) {
+				?: return 1
-			val controller = selectionController
+			return when (bookmarksAdapter?.getItemViewType(position)) {
-			if (controller != null && controller.count > 0) {
+				ListItemType.PAGE_THUMB.ordinal -> 1
-				if (controller.getSectionCount(item.manga) == item.bookmarks.size) {
+				else -> total
-					controller.clearSelection(item.manga)
-				} else {
-					controller.addToSelection(item.manga, item.bookmarks.ids())
-				}
-				return
 			}
-			val intent = DetailsActivity.newIntent(view.context, item.manga)
-			startActivity(intent)
 		}
 
-		override fun onItemLongClick(item: BookmarksGroup, view: View): Boolean {
+		override fun run() {
-			return selectionController?.addToSelection(item.manga, item.bookmarks.ids()) ?: false
+			invalidateSpanGroupIndexCache()
+			invalidateSpanIndexCache()
 		}
 	}
 
 	companion object {
 
+		@Deprecated(
+			"", ReplaceWith(
+				"BookmarksFragment()",
+				"org.koitharu.kotatsu.bookmarks.ui.BookmarksFragment"
+			)
+		)
 		fun newInstance() = BookmarksFragment()
 	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/bookmarks/ui/BookmarksViewModel.kt

@@ -10,13 +10,14 @@ import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.flow.stateIn
 import kotlinx.coroutines.plus
 import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.bookmarks.domain.Bookmark
 import org.koitharu.kotatsu.bookmarks.domain.BookmarksRepository
-import org.koitharu.kotatsu.bookmarks.ui.model.BookmarksGroup
 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.list.ui.model.EmptyState
+import org.koitharu.kotatsu.list.ui.model.ListHeader
 import org.koitharu.kotatsu.list.ui.model.ListModel
 import org.koitharu.kotatsu.list.ui.model.LoadingState
 import org.koitharu.kotatsu.list.ui.model.toErrorState
@@ -41,17 +42,26 @@ class BookmarksViewModel @Inject constructor(
 						actionStringRes = 0,
 					),
 				)
-			} else list.map { (manga, bookmarks) ->
+			} else {
-				BookmarksGroup(manga, bookmarks)
+				mapList(list)
 			}
 		}
 		.catch { e -> emit(listOf(e.toErrorState(canRetry = false))) }
 		.stateIn(viewModelScope + Dispatchers.Default, SharingStarted.Eagerly, listOf(LoadingState))
 
-	fun removeBookmarks(ids: Map<Manga, Set<Long>>) {
+	fun removeBookmarks(ids: Set<Long>) {
 		launchJob(Dispatchers.Default) {
 			val handle = repository.removeBookmarks(ids)
 			onActionDone.call(ReversibleAction(R.string.bookmarks_removed, handle))
 		}
 	}
+
+	private fun mapList(data: Map<Manga, List<Bookmark>>): List<ListModel> {
+		val result = ArrayList<ListModel>(data.values.sumOf { it.size + 1 })
+		for ((manga, bookmarks) in data) {
+			result.add(ListHeader(manga.title, R.string.more, manga))
+			result.addAll(bookmarks)
+		}
+		return result
+	}
 }

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

@@ -5,19 +5,14 @@ import coil.ImageLoader
 import com.hannesdorfmann.adapterdelegates4.dsl.adapterDelegateViewBinding
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.bookmarks.domain.Bookmark
-import org.koitharu.kotatsu.core.ui.drawable.TextDrawable
 import org.koitharu.kotatsu.core.ui.image.CoverSizeResolver
 import org.koitharu.kotatsu.core.ui.list.AdapterDelegateClickListenerAdapter
 import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
 import org.koitharu.kotatsu.core.util.ext.decodeRegion
-import org.koitharu.kotatsu.core.util.ext.disposeImageRequest
 import org.koitharu.kotatsu.core.util.ext.enqueueWith
-import org.koitharu.kotatsu.core.util.ext.getThemeResId
 import org.koitharu.kotatsu.core.util.ext.newImageRequest
 import org.koitharu.kotatsu.core.util.ext.source
 import org.koitharu.kotatsu.databinding.ItemBookmarkBinding
-import org.koitharu.kotatsu.parsers.util.format
-import com.google.android.material.R as materialR
 
 fun bookmarkListAD(
 	coil: ImageLoader,
@@ -32,20 +27,16 @@ fun bookmarkListAD(
 	binding.root.setOnLongClickListener(listener)
 
 	bind {
-		val data: Any = item.directImageUrl ?: item.toMangaPage()
+		binding.imageViewThumb.newImageRequest(lifecycleOwner, item.imageLoadData)?.run {
-		binding.imageViewThumb.newImageRequest(lifecycleOwner, data)?.run {
 			size(CoverSizeResolver(binding.imageViewThumb))
 			placeholder(R.drawable.ic_placeholder)
 			fallback(R.drawable.ic_placeholder)
 			error(R.drawable.ic_error_placeholder)
 			allowRgb565(true)
+			tag(item)
 			decodeRegion(item.scroll)
 			source(item.manga.source)
 			enqueueWith(coil)
 		}
 	}
-
-	onViewRecycled {
-		binding.imageViewThumb.disposeImageRequest()
-	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/bookmarks/ui/adapter/BookmarksAdapter.kt

@@ -1,32 +1,19 @@
 package org.koitharu.kotatsu.bookmarks.ui.adapter
 
 import androidx.lifecycle.LifecycleOwner
-import androidx.recyclerview.widget.DiffUtil
 import coil.ImageLoader
-import com.hannesdorfmann.adapterdelegates4.AsyncListDifferDelegationAdapter
 import org.koitharu.kotatsu.bookmarks.domain.Bookmark
+import org.koitharu.kotatsu.core.ui.BaseListAdapter
 import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
+import org.koitharu.kotatsu.list.ui.adapter.ListItemType
 
 class BookmarksAdapter(
 	coil: ImageLoader,
 	lifecycleOwner: LifecycleOwner,
 	clickListener: OnListItemClickListener<Bookmark>,
-) : AsyncListDifferDelegationAdapter<Bookmark>(
+) : BaseListAdapter<Bookmark>() {
-	DiffCallback(),
-	bookmarkListAD(coil, lifecycleOwner, clickListener),
-) {
-
-	private class DiffCallback : DiffUtil.ItemCallback<Bookmark>() {
-
-		override fun areItemsTheSame(oldItem: Bookmark, newItem: Bookmark): Boolean {
-			return oldItem.manga.id == newItem.manga.id &&
-				oldItem.chapterId == newItem.chapterId &&
-				oldItem.page == newItem.page
-		}
-
-		override fun areContentsTheSame(oldItem: Bookmark, newItem: Bookmark): Boolean {
-			return oldItem.imageUrl == newItem.imageUrl
-		}
 
+	init {
+		addDelegate(ListItemType.PAGE_THUMB, bookmarkListAD(coil, lifecycleOwner, clickListener))
 	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/bookmarks/ui/adapter/BookmarksGroupAD.kt

@@ -1,69 +0,0 @@
-package org.koitharu.kotatsu.bookmarks.ui.adapter
-
-import android.view.View
-import androidx.lifecycle.LifecycleOwner
-import androidx.recyclerview.widget.RecyclerView
-import coil.ImageLoader
-import com.hannesdorfmann.adapterdelegates4.dsl.adapterDelegateViewBinding
-import org.koitharu.kotatsu.R
-import org.koitharu.kotatsu.bookmarks.domain.Bookmark
-import org.koitharu.kotatsu.bookmarks.ui.model.BookmarksGroup
-import org.koitharu.kotatsu.core.ui.image.CoverSizeResolver
-import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
-import org.koitharu.kotatsu.core.ui.list.SectionedSelectionController
-import org.koitharu.kotatsu.core.ui.list.decor.SpacingItemDecoration
-import org.koitharu.kotatsu.core.util.ext.clearItemDecorations
-import org.koitharu.kotatsu.core.util.ext.disposeImageRequest
-import org.koitharu.kotatsu.core.util.ext.enqueueWith
-import org.koitharu.kotatsu.core.util.ext.newImageRequest
-import org.koitharu.kotatsu.core.util.ext.source
-import org.koitharu.kotatsu.databinding.ItemBookmarksGroupBinding
-import org.koitharu.kotatsu.list.ui.model.ListModel
-import org.koitharu.kotatsu.parsers.model.Manga
-
-fun bookmarksGroupAD(
-	coil: ImageLoader,
-	lifecycleOwner: LifecycleOwner,
-	sharedPool: RecyclerView.RecycledViewPool,
-	selectionController: SectionedSelectionController<Manga>,
-	bookmarkClickListener: OnListItemClickListener<Bookmark>,
-	groupClickListener: OnListItemClickListener<BookmarksGroup>,
-) = adapterDelegateViewBinding<BookmarksGroup, ListModel, ItemBookmarksGroupBinding>(
-	{ layoutInflater, parent -> ItemBookmarksGroupBinding.inflate(layoutInflater, parent, false) },
-) {
-	val viewListenerAdapter = object : View.OnClickListener, View.OnLongClickListener {
-		override fun onClick(v: View) = groupClickListener.onItemClick(item, v)
-		override fun onLongClick(v: View) = groupClickListener.onItemLongClick(item, v)
-	}
-
-	val adapter = BookmarksAdapter(coil, lifecycleOwner, bookmarkClickListener)
-	binding.recyclerView.setRecycledViewPool(sharedPool)
-	binding.recyclerView.adapter = adapter
-	val spacingDecoration = SpacingItemDecoration(context.resources.getDimensionPixelOffset(R.dimen.grid_spacing))
-	binding.recyclerView.addItemDecoration(spacingDecoration)
-	binding.root.setOnClickListener(viewListenerAdapter)
-	binding.root.setOnLongClickListener(viewListenerAdapter)
-
-	bind { payloads ->
-		if (payloads.isEmpty()) {
-			binding.recyclerView.clearItemDecorations()
-			binding.recyclerView.addItemDecoration(spacingDecoration)
-			selectionController.attachToRecyclerView(item.manga, binding.recyclerView)
-		}
-		binding.imageViewCover.newImageRequest(lifecycleOwner, item.manga.coverUrl)?.run {
-			placeholder(R.drawable.ic_placeholder)
-			fallback(R.drawable.ic_placeholder)
-			error(R.drawable.ic_error_placeholder)
-			allowRgb565(true)
-			size(CoverSizeResolver(binding.imageViewCover))
-			source(item.manga.source)
-			enqueueWith(coil)
-		}
-		binding.textViewTitle.text = item.manga.title
-		adapter.items = item.bookmarks
-	}
-
-	onViewRecycled {
-		binding.imageViewCover.disposeImageRequest()
-	}
-}

app/src/main/kotlin/org/koitharu/kotatsu/bookmarks/ui/adapter/BookmarksGroupAdapter.kt

@@ -1,77 +0,0 @@
-package org.koitharu.kotatsu.bookmarks.ui.adapter
-
-import androidx.lifecycle.LifecycleOwner
-import androidx.recyclerview.widget.DiffUtil
-import androidx.recyclerview.widget.RecyclerView
-import coil.ImageLoader
-import com.hannesdorfmann.adapterdelegates4.AsyncListDifferDelegationAdapter
-import org.koitharu.kotatsu.bookmarks.domain.Bookmark
-import org.koitharu.kotatsu.bookmarks.ui.model.BookmarksGroup
-import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
-import org.koitharu.kotatsu.core.ui.list.SectionedSelectionController
-import org.koitharu.kotatsu.list.ui.adapter.ListStateHolderListener
-import org.koitharu.kotatsu.list.ui.adapter.emptyStateListAD
-import org.koitharu.kotatsu.list.ui.adapter.errorStateListAD
-import org.koitharu.kotatsu.list.ui.adapter.loadingFooterAD
-import org.koitharu.kotatsu.list.ui.adapter.loadingStateAD
-import org.koitharu.kotatsu.list.ui.model.ListModel
-import org.koitharu.kotatsu.list.ui.model.LoadingFooter
-import org.koitharu.kotatsu.parsers.model.Manga
-import kotlin.jvm.internal.Intrinsics
-
-class BookmarksGroupAdapter(
-	coil: ImageLoader,
-	lifecycleOwner: LifecycleOwner,
-	selectionController: SectionedSelectionController<Manga>,
-	listener: ListStateHolderListener,
-	bookmarkClickListener: OnListItemClickListener<Bookmark>,
-	groupClickListener: OnListItemClickListener<BookmarksGroup>,
-) : AsyncListDifferDelegationAdapter<ListModel>(DiffCallback()) {
-
-	init {
-		val pool = RecyclerView.RecycledViewPool()
-		delegatesManager
-			.addDelegate(
-				bookmarksGroupAD(
-					coil = coil,
-					lifecycleOwner = lifecycleOwner,
-					sharedPool = pool,
-					selectionController = selectionController,
-					bookmarkClickListener = bookmarkClickListener,
-					groupClickListener = groupClickListener,
-				),
-			)
-			.addDelegate(loadingStateAD())
-			.addDelegate(loadingFooterAD())
-			.addDelegate(emptyStateListAD(coil, lifecycleOwner, listener))
-			.addDelegate(errorStateListAD(listener))
-	}
-
-	private class DiffCallback : DiffUtil.ItemCallback<ListModel>() {
-
-		override fun areItemsTheSame(oldItem: ListModel, newItem: ListModel): Boolean {
-			return when {
-				oldItem is BookmarksGroup && newItem is BookmarksGroup -> {
-					oldItem.manga.id == newItem.manga.id
-				}
-
-				oldItem is LoadingFooter && newItem is LoadingFooter -> {
-					oldItem.key == newItem.key
-				}
-
-				else -> oldItem.javaClass == newItem.javaClass
-			}
-		}
-
-		override fun areContentsTheSame(oldItem: ListModel, newItem: ListModel): Boolean {
-			return Intrinsics.areEqual(oldItem, newItem)
-		}
-
-		override fun getChangePayload(oldItem: ListModel, newItem: ListModel): Any? {
-			return when {
-				oldItem is BookmarksGroup && newItem is BookmarksGroup -> Unit
-				else -> super.getChangePayload(oldItem, newItem)
-			}
-		}
-	}
-}

app/src/main/kotlin/org/koitharu/kotatsu/bookmarks/ui/model/BookmarksGroup.kt

@@ -1,31 +0,0 @@
-package org.koitharu.kotatsu.bookmarks.ui.model
-
-import org.koitharu.kotatsu.bookmarks.domain.Bookmark
-import org.koitharu.kotatsu.list.ui.model.ListModel
-import org.koitharu.kotatsu.parsers.model.Manga
-import org.koitharu.kotatsu.parsers.util.areItemsEquals
-
-class BookmarksGroup(
-	val manga: Manga,
-	val bookmarks: List<Bookmark>,
-) : ListModel {
-
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as BookmarksGroup
-
-		if (manga != other.manga) return false
-
-		return bookmarks.areItemsEquals(other.bookmarks) { a, b ->
-			a.imageUrl == b.imageUrl
-		}
-	}
-
-	override fun hashCode(): Int {
-		var result = manga.hashCode()
-		result = 31 * result + bookmarks.sumOf { it.imageUrl.hashCode() }
-		return result
-	}
-}

app/src/main/kotlin/org/koitharu/kotatsu/bookmarks/ui/sheet/BookmarkLargeAD.kt

@@ -0,0 +1,44 @@
+package org.koitharu.kotatsu.bookmarks.ui.sheet
+
+import androidx.lifecycle.LifecycleOwner
+import coil.ImageLoader
+import com.hannesdorfmann.adapterdelegates4.dsl.adapterDelegateViewBinding
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.bookmarks.domain.Bookmark
+import org.koitharu.kotatsu.core.ui.image.CoverSizeResolver
+import org.koitharu.kotatsu.core.ui.list.AdapterDelegateClickListenerAdapter
+import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
+import org.koitharu.kotatsu.core.util.ext.decodeRegion
+import org.koitharu.kotatsu.core.util.ext.enqueueWith
+import org.koitharu.kotatsu.core.util.ext.newImageRequest
+import org.koitharu.kotatsu.core.util.ext.source
+import org.koitharu.kotatsu.databinding.ItemBookmarkLargeBinding
+import org.koitharu.kotatsu.list.ui.model.ListModel
+
+fun bookmarkLargeAD(
+	coil: ImageLoader,
+	lifecycleOwner: LifecycleOwner,
+	clickListener: OnListItemClickListener<Bookmark>,
+) = adapterDelegateViewBinding<Bookmark, ListModel, ItemBookmarkLargeBinding>(
+	{ inflater, parent -> ItemBookmarkLargeBinding.inflate(inflater, parent, false) },
+) {
+	val listener = AdapterDelegateClickListenerAdapter(this, clickListener)
+
+	binding.root.setOnClickListener(listener)
+	binding.root.setOnLongClickListener(listener)
+
+	bind {
+		binding.imageViewThumb.newImageRequest(lifecycleOwner, item.imageLoadData)?.run {
+			size(CoverSizeResolver(binding.imageViewThumb))
+			placeholder(R.drawable.ic_placeholder)
+			fallback(R.drawable.ic_placeholder)
+			error(R.drawable.ic_error_placeholder)
+			allowRgb565(true)
+			tag(item)
+			decodeRegion(item.scroll)
+			source(item.manga.source)
+			enqueueWith(coil)
+		}
+		binding.progressView.percent = item.percent
+	}
+}

app/src/main/kotlin/org/koitharu/kotatsu/bookmarks/ui/sheet/BookmarksAdapter.kt

@@ -0,0 +1,44 @@
+package org.koitharu.kotatsu.bookmarks.ui.sheet
+
+import android.content.Context
+import androidx.lifecycle.LifecycleOwner
+import coil.ImageLoader
+import org.koitharu.kotatsu.bookmarks.domain.Bookmark
+import org.koitharu.kotatsu.core.ui.BaseListAdapter
+import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
+import org.koitharu.kotatsu.core.ui.list.fastscroll.FastScroller
+import org.koitharu.kotatsu.list.ui.adapter.ListHeaderClickListener
+import org.koitharu.kotatsu.list.ui.adapter.ListItemType
+import org.koitharu.kotatsu.list.ui.adapter.emptyStateListAD
+import org.koitharu.kotatsu.list.ui.adapter.listHeaderAD
+import org.koitharu.kotatsu.list.ui.adapter.loadingFooterAD
+import org.koitharu.kotatsu.list.ui.adapter.loadingStateAD
+import org.koitharu.kotatsu.list.ui.model.ListHeader
+import org.koitharu.kotatsu.list.ui.model.ListModel
+
+class BookmarksAdapter(
+	coil: ImageLoader,
+	lifecycleOwner: LifecycleOwner,
+	clickListener: OnListItemClickListener<Bookmark>,
+	headerClickListener: ListHeaderClickListener?,
+) : BaseListAdapter<ListModel>(), FastScroller.SectionIndexer {
+
+	init {
+		addDelegate(ListItemType.PAGE_THUMB, bookmarkLargeAD(coil, lifecycleOwner, clickListener))
+		addDelegate(ListItemType.HEADER, listHeaderAD(headerClickListener))
+		addDelegate(ListItemType.FOOTER_LOADING, loadingFooterAD())
+		addDelegate(ListItemType.STATE_LOADING, loadingStateAD())
+		addDelegate(ListItemType.STATE_EMPTY, emptyStateListAD(coil, lifecycleOwner, null))
+	}
+
+	override fun getSectionText(context: Context, position: Int): CharSequence? {
+		val list = items
+		for (i in (0..position).reversed()) {
+			val item = list.getOrNull(i) ?: continue
+			if (item is ListHeader) {
+				return item.getText(context)
+			}
+		}
+		return null
+	}
+}

app/src/main/kotlin/org/koitharu/kotatsu/bookmarks/ui/sheet/BookmarksSheet.kt

@@ -0,0 +1,169 @@
+package org.koitharu.kotatsu.bookmarks.ui.sheet
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.FragmentManager
+import androidx.fragment.app.viewModels
+import androidx.recyclerview.widget.GridLayoutManager
+import coil.ImageLoader
+import dagger.hilt.android.AndroidEntryPoint
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.bookmarks.domain.Bookmark
+import org.koitharu.kotatsu.core.exceptions.resolve.SnackbarErrorObserver
+import org.koitharu.kotatsu.core.model.parcelable.ParcelableManga
+import org.koitharu.kotatsu.core.prefs.AppSettings
+import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
+import org.koitharu.kotatsu.core.ui.sheet.AdaptiveSheetBehavior
+import org.koitharu.kotatsu.core.ui.sheet.AdaptiveSheetCallback
+import org.koitharu.kotatsu.core.ui.sheet.BaseAdaptiveSheet
+import org.koitharu.kotatsu.core.util.RecyclerViewScrollCallback
+import org.koitharu.kotatsu.core.util.ext.observe
+import org.koitharu.kotatsu.core.util.ext.observeEvent
+import org.koitharu.kotatsu.core.util.ext.plus
+import org.koitharu.kotatsu.core.util.ext.showDistinct
+import org.koitharu.kotatsu.core.util.ext.withArgs
+import org.koitharu.kotatsu.databinding.SheetPagesBinding
+import org.koitharu.kotatsu.list.ui.MangaListSpanResolver
+import org.koitharu.kotatsu.list.ui.adapter.ListItemType
+import org.koitharu.kotatsu.list.ui.adapter.TypedListSpacingDecoration
+import org.koitharu.kotatsu.list.ui.model.ListModel
+import org.koitharu.kotatsu.parsers.model.Manga
+import org.koitharu.kotatsu.reader.ui.ReaderActivity.IntentBuilder
+import org.koitharu.kotatsu.reader.ui.pager.ReaderPage
+import org.koitharu.kotatsu.reader.ui.thumbnails.OnPageSelectListener
+import org.koitharu.kotatsu.reader.ui.thumbnails.PageThumbnail
+import javax.inject.Inject
+import kotlin.math.roundToInt
+
+@AndroidEntryPoint
+class BookmarksSheet :
+	BaseAdaptiveSheet<SheetPagesBinding>(),
+	AdaptiveSheetCallback,
+	OnListItemClickListener<Bookmark> {
+
+	private val viewModel by viewModels<BookmarksSheetViewModel>()
+
+	@Inject
+	lateinit var coil: ImageLoader
+
+	@Inject
+	lateinit var settings: AppSettings
+
+	private var bookmarksAdapter: BookmarksAdapter? = null
+	private var spanResolver: MangaListSpanResolver? = null
+
+	private val spanSizeLookup = SpanSizeLookup()
+	private val listCommitCallback = Runnable {
+		spanSizeLookup.invalidateCache()
+	}
+
+	override fun onCreateViewBinding(inflater: LayoutInflater, container: ViewGroup?): SheetPagesBinding {
+		return SheetPagesBinding.inflate(inflater, container, false)
+	}
+
+	override fun onViewBindingCreated(binding: SheetPagesBinding, savedInstanceState: Bundle?) {
+		super.onViewBindingCreated(binding, savedInstanceState)
+		addSheetCallback(this)
+		spanResolver = MangaListSpanResolver(binding.root.resources)
+		bookmarksAdapter = BookmarksAdapter(
+			coil = coil,
+			lifecycleOwner = viewLifecycleOwner,
+			clickListener = this@BookmarksSheet,
+			headerClickListener = null,
+		)
+		viewBinding?.headerBar?.setTitle(R.string.bookmarks)
+		with(binding.recyclerView) {
+			addItemDecoration(TypedListSpacingDecoration(context, false))
+			adapter = bookmarksAdapter
+			addOnLayoutChangeListener(spanResolver)
+			spanResolver?.setGridSize(settings.gridSize / 100f, this)
+			(layoutManager as GridLayoutManager).spanSizeLookup = spanSizeLookup
+		}
+		viewModel.content.observe(viewLifecycleOwner, ::onThumbnailsChanged)
+		viewModel.onError.observeEvent(viewLifecycleOwner, SnackbarErrorObserver(binding.recyclerView, this))
+	}
+
+	override fun onDestroyView() {
+		spanResolver = null
+		bookmarksAdapter = null
+		spanSizeLookup.invalidateCache()
+		super.onDestroyView()
+	}
+
+	override fun onItemClick(item: Bookmark, view: View) {
+		val listener = (parentFragment as? OnPageSelectListener) ?: (activity as? OnPageSelectListener)
+		if (listener != null) {
+			listener.onPageSelected(ReaderPage(item.toMangaPage(), item.page, item.chapterId))
+		} else {
+			val intent = IntentBuilder(view.context)
+				.manga(viewModel.manga)
+				.bookmark(item)
+				.incognito(true)
+				.build()
+			startActivity(intent)
+		}
+		dismiss()
+	}
+
+	override fun onStateChanged(sheet: View, newState: Int) {
+		viewBinding?.recyclerView?.isFastScrollerEnabled = newState == AdaptiveSheetBehavior.STATE_EXPANDED
+	}
+
+	private fun onThumbnailsChanged(list: List<ListModel>) {
+		val adapter = bookmarksAdapter ?: return
+		if (adapter.itemCount == 0) {
+			var position = list.indexOfFirst { it is PageThumbnail && it.isCurrent }
+			if (position > 0) {
+				val spanCount = spanResolver?.spanCount ?: 0
+				val offset = if (position > spanCount + 1) {
+					(resources.getDimensionPixelSize(R.dimen.manga_list_details_item_height) * 0.6).roundToInt()
+				} else {
+					position = 0
+					0
+				}
+				val scrollCallback = RecyclerViewScrollCallback(requireViewBinding().recyclerView, position, offset)
+				adapter.setItems(list, listCommitCallback + scrollCallback)
+			} else {
+				adapter.setItems(list, listCommitCallback)
+			}
+		} else {
+			adapter.setItems(list, listCommitCallback)
+		}
+	}
+
+	private inner class SpanSizeLookup : GridLayoutManager.SpanSizeLookup() {
+
+		init {
+			isSpanIndexCacheEnabled = true
+			isSpanGroupIndexCacheEnabled = true
+		}
+
+		override fun getSpanSize(position: Int): Int {
+			val total = (viewBinding?.recyclerView?.layoutManager as? GridLayoutManager)?.spanCount ?: return 1
+			return when (bookmarksAdapter?.getItemViewType(position)) {
+				ListItemType.PAGE_THUMB.ordinal -> 1
+				else -> total
+			}
+		}
+
+		fun invalidateCache() {
+			invalidateSpanGroupIndexCache()
+			invalidateSpanIndexCache()
+		}
+	}
+
+	companion object {
+
+		const val ARG_MANGA = "manga"
+
+		private const val TAG = "BookmarksSheet"
+
+		fun show(fm: FragmentManager, manga: Manga) {
+			BookmarksSheet().withArgs(1) {
+				putParcelable(ARG_MANGA, ParcelableManga(manga))
+			}.showDistinct(fm, TAG)
+		}
+	}
+}

app/src/main/kotlin/org/koitharu/kotatsu/bookmarks/ui/sheet/BookmarksSheetViewModel.kt

@@ -0,0 +1,55 @@
+package org.koitharu.kotatsu.bookmarks.ui.sheet
+
+import androidx.lifecycle.SavedStateHandle
+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.map
+import kotlinx.coroutines.flow.stateIn
+import kotlinx.coroutines.plus
+import org.koitharu.kotatsu.bookmarks.domain.Bookmark
+import org.koitharu.kotatsu.bookmarks.domain.BookmarksRepository
+import org.koitharu.kotatsu.core.model.parcelable.ParcelableManga
+import org.koitharu.kotatsu.core.parser.MangaRepository
+import org.koitharu.kotatsu.core.ui.BaseViewModel
+import org.koitharu.kotatsu.core.util.ext.require
+import org.koitharu.kotatsu.list.ui.model.ListHeader
+import org.koitharu.kotatsu.list.ui.model.ListModel
+import org.koitharu.kotatsu.list.ui.model.LoadingFooter
+import org.koitharu.kotatsu.parsers.util.SuspendLazy
+import javax.inject.Inject
+
+@HiltViewModel
+class BookmarksSheetViewModel @Inject constructor(
+	savedStateHandle: SavedStateHandle,
+	mangaRepositoryFactory: MangaRepository.Factory,
+	bookmarksRepository: BookmarksRepository,
+) : BaseViewModel() {
+
+	val manga = savedStateHandle.require<ParcelableManga>(BookmarksSheet.ARG_MANGA).manga
+	private val chaptersLazy = SuspendLazy {
+		requireNotNull(manga.chapters ?: mangaRepositoryFactory.create(manga.source).getDetails(manga).chapters)
+	}
+
+	val content: StateFlow<List<ListModel>> = bookmarksRepository.observeBookmarks(manga)
+		.map { mapList(it) }
+		.withErrorHandling()
+		.stateIn(viewModelScope + Dispatchers.Default, SharingStarted.Lazily, listOf(LoadingFooter()))
+
+	private suspend fun mapList(bookmarks: List<Bookmark>): List<ListModel> {
+		val chapters = chaptersLazy.get()
+		val bookmarksMap = bookmarks.groupBy { it.chapterId }
+		val result = ArrayList<ListModel>(bookmarks.size + bookmarksMap.size)
+		for (chapter in chapters) {
+			val b = bookmarksMap[chapter.id]
+			if (b.isNullOrEmpty()) {
+				continue
+			}
+			result += ListHeader(chapter.name)
+			result.addAll(b)
+		}
+		return result
+	}
+}

app/src/main/kotlin/org/koitharu/kotatsu/browser/BrowserActivity.kt

@@ -13,7 +13,6 @@ import androidx.core.graphics.Insets
 import androidx.core.view.isVisible
 import androidx.core.view.updatePadding
 import org.koitharu.kotatsu.R
-import org.koitharu.kotatsu.core.network.CommonHeadersInterceptor
 import org.koitharu.kotatsu.core.ui.BaseActivity
 import org.koitharu.kotatsu.core.util.ext.catchingWebViewUnavailability
 import org.koitharu.kotatsu.databinding.ActivityBrowserBinding

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

@@ -0,0 +1,74 @@
+package org.koitharu.kotatsu.browser.cloudflare
+
+import android.content.Context
+import androidx.core.app.NotificationChannelCompat
+import androidx.core.app.NotificationCompat
+import androidx.core.app.NotificationManagerCompat
+import androidx.core.app.PendingIntentCompat
+import androidx.core.net.toUri
+import coil.EventListener
+import coil.request.ErrorResult
+import coil.request.ImageRequest
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.core.exceptions.CloudFlareProtectedException
+import org.koitharu.kotatsu.core.util.ext.checkNotificationPermission
+import org.koitharu.kotatsu.parsers.model.ContentType
+
+class CaptchaNotifier(
+	private val context: Context,
+) : EventListener {
+
+	fun notify(exception: CloudFlareProtectedException) {
+		if (!context.checkNotificationPermission()) {
+			return
+		}
+		val manager = NotificationManagerCompat.from(context)
+		val channel = NotificationChannelCompat.Builder(CHANNEL_ID, NotificationManagerCompat.IMPORTANCE_DEFAULT)
+			.setName(context.getString(R.string.captcha_required))
+			.setShowBadge(true)
+			.setVibrationEnabled(false)
+			.setSound(null, null)
+			.setLightsEnabled(false)
+			.build()
+		manager.createNotificationChannel(channel)
+
+		val intent = CloudFlareActivity.newIntent(context, exception.url, exception.headers)
+			.setData(exception.url.toUri())
+		val notification = NotificationCompat.Builder(context, CHANNEL_ID)
+			.setContentTitle(channel.name)
+			.setPriority(NotificationCompat.PRIORITY_DEFAULT)
+			.setDefaults(NotificationCompat.DEFAULT_SOUND)
+			.setSmallIcon(android.R.drawable.stat_notify_error)
+			.setAutoCancel(true)
+			.setVisibility(
+				if (exception.source?.contentType == ContentType.HENTAI) {
+					NotificationCompat.VISIBILITY_SECRET
+				} else {
+					NotificationCompat.VISIBILITY_PUBLIC
+				},
+			)
+			.setContentText(
+				context.getString(
+					R.string.captcha_required_summary,
+					exception.source?.title ?: context.getString(R.string.app_name),
+				),
+			)
+			.setContentIntent(PendingIntentCompat.getActivity(context, 0, intent, 0, false))
+			.build()
+		manager.notify(TAG, exception.source.hashCode(), notification)
+	}
+
+	override fun onError(request: ImageRequest, result: ErrorResult) {
+		super.onError(request, result)
+		val e = result.throwable
+		if (e is CloudFlareProtectedException) {
+			notify(e)
+		}
+	}
+
+	private companion object {
+
+		private const val CHANNEL_ID = "captcha"
+		private const val TAG = CHANNEL_ID
+	}
+}

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

@@ -3,22 +3,27 @@ package org.koitharu.kotatsu.browser.cloudflare
 import android.content.Context
 import android.content.Intent
 import android.os.Bundle
+import android.view.Menu
 import android.view.MenuItem
 import android.webkit.CookieManager
-import android.webkit.WebSettings
 import androidx.activity.result.contract.ActivityResultContract
 import androidx.core.graphics.Insets
 import androidx.core.net.toUri
 import androidx.core.view.isInvisible
 import androidx.core.view.isVisible
 import androidx.core.view.updatePadding
+import androidx.lifecycle.lifecycleScope
 import dagger.hilt.android.AndroidEntryPoint
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.runInterruptible
+import kotlinx.coroutines.yield
 import okhttp3.Headers
+import okhttp3.HttpUrl
 import okhttp3.HttpUrl.Companion.toHttpUrlOrNull
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.browser.WebViewBackPressedCallback
 import org.koitharu.kotatsu.core.network.CommonHeaders
-import org.koitharu.kotatsu.core.network.CommonHeadersInterceptor
 import org.koitharu.kotatsu.core.network.cookies.MutableCookieJar
 import org.koitharu.kotatsu.core.ui.BaseActivity
 import org.koitharu.kotatsu.core.util.TaggedActivityResult
@@ -40,7 +45,13 @@ class CloudFlareActivity : BaseActivity<ActivityBrowserBinding>(), CloudFlareCal
 
 	override fun onCreate(savedInstanceState: Bundle?) {
 		super.onCreate(savedInstanceState)
-		if (!catchingWebViewUnavailability { setContentView(ActivityBrowserBinding.inflate(layoutInflater)) }) {
+		if (!catchingWebViewUnavailability {
+				setContentView(
+					ActivityBrowserBinding.inflate(
+						layoutInflater
+					)
+				)
+			}) {
 			return
 		}
 		supportActionBar?.run {
@@ -88,6 +99,11 @@ class CloudFlareActivity : BaseActivity<ActivityBrowserBinding>(), CloudFlareCal
 		viewBinding.webView.restoreState(savedInstanceState)
 	}
 
+	override fun onCreateOptionsMenu(menu: Menu?): Boolean {
+		menuInflater.inflate(R.menu.opt_captcha, menu)
+		return super.onCreateOptionsMenu(menu)
+	}
+
 	override fun onWindowInsetsChanged(insets: Insets) {
 		viewBinding.appbar.updatePadding(
 			top = insets.top,
@@ -106,6 +122,19 @@ class CloudFlareActivity : BaseActivity<ActivityBrowserBinding>(), CloudFlareCal
 			true
 		}
 
+		R.id.action_retry -> {
+			lifecycleScope.launch {
+				viewBinding.webView.stopLoading()
+				yield()
+				val targetUrl = intent?.dataString?.toHttpUrlOrNull()
+				if (targetUrl != null) {
+					clearCfCookies(targetUrl)
+					viewBinding.webView.loadUrl(targetUrl.toString())
+				}
+			}
+			true
+		}
+
 		else -> super.onOptionsItemSelected(item)
 	}
 
@@ -143,7 +172,15 @@ class CloudFlareActivity : BaseActivity<ActivityBrowserBinding>(), CloudFlareCal
 
 	override fun onTitleChanged(title: CharSequence, subtitle: CharSequence?) {
 		setTitle(title)
-		supportActionBar?.subtitle = subtitle?.toString()?.toHttpUrlOrNull()?.topPrivateDomain() ?: subtitle
+		supportActionBar?.subtitle =
+			subtitle?.toString()?.toHttpUrlOrNull()?.topPrivateDomain() ?: subtitle
+	}
+
+	private suspend fun clearCfCookies(url: HttpUrl) = runInterruptible(Dispatchers.Default) {
+		cookieJar.removeCookies(url) { cookie ->
+			val name = cookie.name
+			name.startsWith("cf_") || name.startsWith("_cf") || name.startsWith("__cf")
+		}
 	}
 
 	class Contract : ActivityResultContract<Pair<String, Headers?>, TaggedActivityResult>() {

app/src/main/kotlin/org/koitharu/kotatsu/core/AppModule.kt

@@ -6,6 +6,7 @@ import android.provider.SearchRecentSuggestions
 import android.text.Html
 import androidx.collection.arraySetOf
 import androidx.room.InvalidationTracker
+import androidx.work.WorkManager
 import coil.ComponentRegistry
 import coil.ImageLoader
 import coil.decode.SvgDecoder
@@ -24,11 +25,13 @@ import kotlinx.coroutines.flow.SharedFlow
 import kotlinx.coroutines.flow.asSharedFlow
 import okhttp3.OkHttpClient
 import org.koitharu.kotatsu.BuildConfig
+import org.koitharu.kotatsu.browser.cloudflare.CaptchaNotifier
 import org.koitharu.kotatsu.core.cache.ContentCache
 import org.koitharu.kotatsu.core.cache.MemoryContentCache
 import org.koitharu.kotatsu.core.cache.StubContentCache
 import org.koitharu.kotatsu.core.db.MangaDatabase
-import org.koitharu.kotatsu.core.network.*
+import org.koitharu.kotatsu.core.network.ImageProxyInterceptor
+import org.koitharu.kotatsu.core.network.MangaHttpClient
 import org.koitharu.kotatsu.core.os.AppShortcutManager
 import org.koitharu.kotatsu.core.os.NetworkState
 import org.koitharu.kotatsu.core.parser.MangaLoaderContextImpl
@@ -38,13 +41,13 @@ import org.koitharu.kotatsu.core.ui.image.CoilImageGetter
 import org.koitharu.kotatsu.core.ui.util.ActivityRecreationHandle
 import org.koitharu.kotatsu.core.util.AcraScreenLogger
 import org.koitharu.kotatsu.core.util.IncognitoModeIndicator
-import org.koitharu.kotatsu.core.util.ext.activityManager
 import org.koitharu.kotatsu.core.util.ext.connectivityManager
 import org.koitharu.kotatsu.core.util.ext.isLowRamDevice
 import org.koitharu.kotatsu.local.data.CacheDir
 import org.koitharu.kotatsu.local.data.CbzFetcher
 import org.koitharu.kotatsu.local.data.LocalStorageChanges
 import org.koitharu.kotatsu.local.domain.model.LocalManga
+import org.koitharu.kotatsu.main.domain.CoverRestoreInterceptor
 import org.koitharu.kotatsu.main.ui.protect.AppProtectHelper
 import org.koitharu.kotatsu.parsers.MangaLoaderContext
 import org.koitharu.kotatsu.reader.ui.thumbnails.MangaPageFetcher
@@ -88,6 +91,7 @@ interface AppModule {
 			mangaRepositoryFactory: MangaRepository.Factory,
 			imageProxyInterceptor: ImageProxyInterceptor,
 			pageFetcherFactory: MangaPageFetcher.Factory,
+			coverRestoreInterceptor: CoverRestoreInterceptor,
 		): ImageLoader {
 			val diskCacheFactory = {
 				val rootDir = context.externalCacheDir ?: context.cacheDir
@@ -104,6 +108,7 @@ interface AppModule {
 				.diskCache(diskCacheFactory)
 				.logger(if (BuildConfig.DEBUG) DebugLogger() else null)
 				.allowRgb565(context.isLowRamDevice())
+				.eventListener(CaptchaNotifier(context))
 				.components(
 					ComponentRegistry.Builder()
 						.add(SvgDecoder.Factory())
@@ -111,6 +116,7 @@ interface AppModule {
 						.add(FaviconFetcher.Factory(context, okHttpClient, mangaRepositoryFactory))
 						.add(pageFetcherFactory)
 						.add(imageProxyInterceptor)
+						.add(coverRestoreInterceptor)
 						.build(),
 				).build()
 		}
@@ -155,7 +161,7 @@ interface AppModule {
 		fun provideContentCache(
 			application: Application,
 		): ContentCache {
-			return if (application.activityManager?.isLowRamDevice == true) {
+			return if (application.isLowRamDevice()) {
 				StubContentCache()
 			} else {
 				MemoryContentCache(application)
@@ -172,5 +178,10 @@ interface AppModule {
 		fun provideLocalStorageChangesFlow(
 			@LocalStorageChanges flow: MutableSharedFlow<LocalManga?>,
 		): SharedFlow<LocalManga?> = flow.asSharedFlow()
+
+		@Provides
+		fun provideWorkManager(
+			@ApplicationContext context: Context,
+		): WorkManager = WorkManager.getInstance(context)
 	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/core/BaseApp.kt

@@ -1,14 +1,13 @@
-package org.koitharu.kotatsu
+package org.koitharu.kotatsu.core
 
 import android.app.Application
 import android.content.Context
-import android.os.StrictMode
 import androidx.annotation.WorkerThread
 import androidx.appcompat.app.AppCompatDelegate
-import androidx.fragment.app.strictmode.FragmentStrictMode
 import androidx.hilt.work.HiltWorkerFactory
 import androidx.room.InvalidationTracker
 import androidx.work.Configuration
+import androidx.work.WorkManager
 import dagger.hilt.android.HiltAndroidApp
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
@@ -19,20 +18,19 @@ import org.acra.config.httpSender
 import org.acra.data.StringFormat
 import org.acra.ktx.initAcra
 import org.acra.sender.HttpSender
+import org.koitharu.kotatsu.BuildConfig
+import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.db.MangaDatabase
 import org.koitharu.kotatsu.core.os.AppValidator
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.util.WorkServiceStopHelper
 import org.koitharu.kotatsu.core.util.ext.processLifecycleScope
-import org.koitharu.kotatsu.local.data.LocalMangaRepository
-import org.koitharu.kotatsu.local.data.PagesCache
-import org.koitharu.kotatsu.parsers.MangaLoaderContext
-import org.koitharu.kotatsu.reader.domain.PageLoader
 import org.koitharu.kotatsu.settings.work.WorkScheduleManager
 import javax.inject.Inject
+import javax.inject.Provider
 
 @HiltAndroidApp
-class KotatsuApp : Application(), Configuration.Provider {
+open class BaseApp : Application(), Configuration.Provider {
 
 	@Inject
 	lateinit var databaseObservers: Set<@JvmSuppressWildcards InvalidationTracker.Observer>
@@ -55,12 +53,12 @@ class KotatsuApp : Application(), Configuration.Provider {
 	@Inject
 	lateinit var workScheduleManager: WorkScheduleManager
 
+	@Inject
+	lateinit var workManagerProvider: Provider<WorkManager>
+
 	override fun onCreate() {
 		super.onCreate()
 		ACRA.errorReporter.putCustomData("isOriginalApp", appValidator.isOriginalApp.toString())
-		if (BuildConfig.DEBUG) {
-			enableStrictMode()
-		}
 		AppCompatDelegate.setDefaultNightMode(settings.theme)
 		AppCompatDelegate.setApplicationLocales(settings.appLocales)
 		setupActivityLifecycleCallbacks()
@@ -68,7 +66,7 @@ class KotatsuApp : Application(), Configuration.Provider {
 			setupDatabaseObservers()
 		}
 		workScheduleManager.init()
-		WorkServiceStopHelper(applicationContext).setup()
+		WorkServiceStopHelper(workManagerProvider).setup()
 	}
 
 	override fun attachBaseContext(base: Context?) {
@@ -131,31 +129,4 @@ class KotatsuApp : Application(), Configuration.Provider {
 			registerActivityLifecycleCallbacks(it)
 		}
 	}
-
-	private fun enableStrictMode() {
-		StrictMode.setThreadPolicy(
-			StrictMode.ThreadPolicy.Builder()
-				.detectAll()
-				.penaltyLog()
-				.build(),
-		)
-		StrictMode.setVmPolicy(
-			StrictMode.VmPolicy.Builder()
-				.detectAll()
-				.setClassInstanceLimit(LocalMangaRepository::class.java, 1)
-				.setClassInstanceLimit(PagesCache::class.java, 1)
-				.setClassInstanceLimit(MangaLoaderContext::class.java, 1)
-				.setClassInstanceLimit(PageLoader::class.java, 1)
-				.penaltyLog()
-				.build(),
-		)
-		FragmentStrictMode.defaultPolicy = FragmentStrictMode.Policy.Builder()
-			.penaltyDeath()
-			.detectFragmentReuse()
-			.detectWrongFragmentContainer()
-			.detectRetainInstanceUsage()
-			.detectSetUserVisibleHint()
-			.detectFragmentTagUsage()
-			.build()
-	}
 }

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

@@ -13,5 +13,7 @@ class BackupEntry(
 		const val HISTORY = "history"
 		const val CATEGORIES = "categories"
 		const val FAVOURITES = "favourites"
+		const val SETTINGS = "settings"
+		const val BOOKMARKS = "bookmarks"
 	}
-}
+}

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

@@ -5,6 +5,7 @@ import org.json.JSONArray
 import org.json.JSONObject
 import org.koitharu.kotatsu.BuildConfig
 import org.koitharu.kotatsu.core.db.MangaDatabase
+import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.parsers.util.json.JSONIterator
 import org.koitharu.kotatsu.parsers.util.json.mapJSON
 import org.koitharu.kotatsu.parsers.util.runCatchingCancellable
@@ -12,7 +13,10 @@ import javax.inject.Inject
 
 private const val PAGE_SIZE = 10
 
-class BackupRepository @Inject constructor(private val db: MangaDatabase) {
+class BackupRepository @Inject constructor(
+	private val db: MangaDatabase,
+	private val settings: AppSettings,
+) {
 
 	suspend fun dumpHistory(): BackupEntry {
 		var offset = 0
@@ -67,6 +71,36 @@ class BackupRepository @Inject constructor(private val db: MangaDatabase) {
 		return entry
 	}
 
+	suspend fun dumpBookmarks(): BackupEntry {
+		val entry = BackupEntry(BackupEntry.BOOKMARKS, JSONArray())
+		val all = db.bookmarksDao.findAll()
+		for ((m, b) in all) {
+			val json = JSONObject()
+			val manga = JsonSerializer(m.manga).toJson()
+			json.put("manga", manga)
+			val tags = JSONArray()
+			m.tags.forEach { tags.put(JsonSerializer(it).toJson()) }
+			json.put("tags", tags)
+			val bookmarks = JSONArray()
+			b.forEach { bookmarks.put(JsonSerializer(it).toJson()) }
+			json.put("bookmarks", bookmarks)
+			entry.data.put(json)
+		}
+		return entry
+	}
+
+	fun dumpSettings(): BackupEntry {
+		val entry = BackupEntry(BackupEntry.SETTINGS, JSONArray())
+		val settingsDump = settings.getAllValues().toMutableMap()
+		settingsDump.remove(AppSettings.KEY_APP_PASSWORD)
+		settingsDump.remove(AppSettings.KEY_PROXY_PASSWORD)
+		settingsDump.remove(AppSettings.KEY_PROXY_LOGIN)
+		settingsDump.remove(AppSettings.KEY_INCOGNITO_MODE)
+		val json = JsonSerializer(settingsDump).toJson()
+		entry.data.put(json)
+		return entry
+	}
+
 	fun createIndex(): BackupEntry {
 		val entry = BackupEntry(BackupEntry.INDEX, JSONArray())
 		val json = JSONObject()
@@ -127,4 +161,36 @@ class BackupRepository @Inject constructor(private val db: MangaDatabase) {
 		}
 		return result
 	}
+
+	suspend fun restoreBookmarks(entry: BackupEntry): CompositeResult {
+		val result = CompositeResult()
+		for (item in entry.data.JSONIterator()) {
+			val mangaJson = item.getJSONObject("manga")
+			val manga = JsonDeserializer(mangaJson).toMangaEntity()
+			val tags = item.getJSONArray("tags").mapJSON {
+				JsonDeserializer(it).toTagEntity()
+			}
+			val bookmarks = item.getJSONArray("bookmarks").mapJSON {
+				JsonDeserializer(it).toBookmarkEntity()
+			}
+			result += runCatchingCancellable {
+				db.withTransaction {
+					db.tagsDao.upsert(tags)
+					db.mangaDao.upsert(manga, tags)
+					db.bookmarksDao.upsert(bookmarks)
+				}
+			}
+		}
+		return result
+	}
+
+	fun restoreSettings(entry: BackupEntry): CompositeResult {
+		val result = CompositeResult()
+		for (item in entry.data.JSONIterator()) {
+			result += runCatchingCancellable {
+				settings.upsertAll(JsonDeserializer(item).toMap())
+			}
+		}
+		return result
+	}
 }

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

@@ -11,8 +11,8 @@ class BackupZipInput(val file: File) : Closeable {
 
 	private val zipFile = ZipFile(file)
 
-	suspend fun getEntry(name: String): BackupEntry = runInterruptible(Dispatchers.IO) {
+	suspend fun getEntry(name: String): BackupEntry? = runInterruptible(Dispatchers.IO) {
-		val entry = zipFile.getEntry(name)
+		val entry = zipFile.getEntry(name) ?: return@runInterruptible null
 		val json = zipFile.getInputStream(entry).use {
 			JSONArray(it.bufferedReader().readText())
 		}
@@ -22,4 +22,4 @@ class BackupZipInput(val file: File) : Closeable {
 	override fun close() {
 		zipFile.close()
 	}
-}
+}

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

@@ -11,6 +11,9 @@ class CompositeResult {
 	val failures: List<Throwable>
 		get() = errors.filterNotNull()
 
+	val isEmpty: Boolean
+		get() = errors.isEmpty() && successCount == 0
+
 	val isAllSuccess: Boolean
 		get() = errors.none { it != null }
 
@@ -36,4 +39,4 @@ class CompositeResult {
 		result.errors.addAll(other.errors)
 		return result
 	}
-}
+}

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

@@ -1,6 +1,7 @@
 package org.koitharu.kotatsu.core.backup
 
 import org.json.JSONObject
+import org.koitharu.kotatsu.bookmarks.data.BookmarkEntity
 import org.koitharu.kotatsu.core.db.entity.MangaEntity
 import org.koitharu.kotatsu.core.db.entity.TagEntity
 import org.koitharu.kotatsu.favourites.data.FavouriteCategoryEntity
@@ -34,14 +35,14 @@ class JsonDeserializer(private val json: JSONObject) {
 		largeCoverUrl = json.getStringOrNull("large_cover_url"),
 		state = json.getStringOrNull("state"),
 		author = json.getStringOrNull("author"),
-		source = json.getString("source")
+		source = json.getString("source"),
 	)
 
 	fun toTagEntity() = TagEntity(
 		id = json.getLong("id"),
 		title = json.getString("title"),
 		key = json.getString("key"),
-		source = json.getString("source")
+		source = json.getString("source"),
 	)
 
 	fun toHistoryEntity() = HistoryEntity(
@@ -65,4 +66,28 @@ class JsonDeserializer(private val json: JSONObject) {
 		isVisibleInLibrary = json.getBooleanOrDefault("show_in_lib", true),
 		deletedAt = 0L,
 	)
+
+	fun toBookmarkEntity() = BookmarkEntity(
+		mangaId = json.getLong("manga_id"),
+		pageId = json.getLong("page_id"),
+		chapterId = json.getLong("chapter_id"),
+		page = json.getInt("page"),
+		scroll = json.getInt("scroll"),
+		imageUrl = json.getString("image_url"),
+		createdAt = json.getLong("created_at"),
+		percent = json.getDouble("percent").toFloat(),
+	)
+
+	fun toMap(): Map<String, Any?> {
+		val map = mutableMapOf<String, Any?>()
+		val keys = json.keys()
+
+		while (keys.hasNext()) {
+			val key = keys.next()
+			val value = json.get(key)
+			map[key] = value
+		}
+
+		return map
+	}
 }

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

@@ -1,6 +1,7 @@
 package org.koitharu.kotatsu.core.backup
 
 import org.json.JSONObject
+import org.koitharu.kotatsu.bookmarks.data.BookmarkEntity
 import org.koitharu.kotatsu.core.db.entity.MangaEntity
 import org.koitharu.kotatsu.core.db.entity.TagEntity
 import org.koitharu.kotatsu.favourites.data.FavouriteCategoryEntity
@@ -15,7 +16,7 @@ class JsonSerializer private constructor(private val json: JSONObject) {
 			put("category_id", e.categoryId)
 			put("sort_key", e.sortKey)
 			put("created_at", e.createdAt)
-		}
+		},
 	)
 
 	constructor(e: FavouriteCategoryEntity) : this(
@@ -27,7 +28,7 @@ class JsonSerializer private constructor(private val json: JSONObject) {
 			put("order", e.order)
 			put("track", e.track)
 			put("show_in_lib", e.isVisibleInLibrary)
-		}
+		},
 	)
 
 	constructor(e: HistoryEntity) : this(
@@ -39,7 +40,7 @@ class JsonSerializer private constructor(private val json: JSONObject) {
 			put("page", e.page)
 			put("scroll", e.scroll)
 			put("percent", e.percent)
-		}
+		},
 	)
 
 	constructor(e: TagEntity) : this(
@@ -48,7 +49,7 @@ class JsonSerializer private constructor(private val json: JSONObject) {
 			put("title", e.title)
 			put("key", e.key)
 			put("source", e.source)
-		}
+		},
 	)
 
 	constructor(e: MangaEntity) : this(
@@ -65,8 +66,25 @@ class JsonSerializer private constructor(private val json: JSONObject) {
 			put("state", e.state)
 			put("author", e.author)
 			put("source", e.source)
-		}
+		},
+	)
+
+	constructor(e: BookmarkEntity) : this(
+		JSONObject().apply {
+			put("manga_id", e.mangaId)
+			put("page_id", e.pageId)
+			put("chapter_id", e.chapterId)
+			put("page", e.page)
+			put("scroll", e.scroll)
+			put("image_url", e.imageUrl)
+			put("created_at", e.createdAt)
+			put("percent", e.percent)
+		},
+	)
+
+	constructor(m: Map<String, *>) : this(
+		JSONObject(m),
 	)
 
 	fun toJson(): JSONObject = json
-}
+}

app/src/main/kotlin/org/koitharu/kotatsu/core/cache/ContentCache.kt

@@ -16,6 +16,10 @@ interface ContentCache {
 
 	fun putPages(source: MangaSource, url: String, pages: SafeDeferred<List<MangaPage>>)
 
+	suspend fun getRelatedManga(source: MangaSource, url: String): List<Manga>?
+
+	fun putRelatedManga(source: MangaSource, url: String, related: SafeDeferred<List<Manga>>)
+
 	data class Key(
 		val source: MangaSource,
 		val url: String,

app/src/main/kotlin/org/koitharu/kotatsu/core/cache/MemoryContentCache.kt

@@ -16,6 +16,7 @@ class MemoryContentCache(application: Application) : ContentCache, ComponentCall
 
 	private val detailsCache = ExpiringLruCache<SafeDeferred<Manga>>(4, 5, TimeUnit.MINUTES)
 	private val pagesCache = ExpiringLruCache<SafeDeferred<List<MangaPage>>>(4, 10, TimeUnit.MINUTES)
+	private val relatedMangaCache = ExpiringLruCache<SafeDeferred<List<Manga>>>(4, 10, TimeUnit.MINUTES)
 
 	override val isCachingEnabled: Boolean = true
 
@@ -35,6 +36,14 @@ class MemoryContentCache(application: Application) : ContentCache, ComponentCall
 		pagesCache[ContentCache.Key(source, url)] = pages
 	}
 
+	override suspend fun getRelatedManga(source: MangaSource, url: String): List<Manga>? {
+		return relatedMangaCache[ContentCache.Key(source, url)]?.awaitOrNull()
+	}
+
+	override fun putRelatedManga(source: MangaSource, url: String, related: SafeDeferred<List<Manga>>) {
+		relatedMangaCache[ContentCache.Key(source, url)] = related
+	}
+
 	override fun onConfigurationChanged(newConfig: Configuration) = Unit
 
 	override fun onLowMemory() = Unit
@@ -42,6 +51,7 @@ class MemoryContentCache(application: Application) : ContentCache, ComponentCall
 	override fun onTrimMemory(level: Int) {
 		trimCache(detailsCache, level)
 		trimCache(pagesCache, level)
+		trimCache(relatedMangaCache, level)
 	}
 
 	private fun trimCache(cache: ExpiringLruCache<*>, level: Int) {

app/src/main/kotlin/org/koitharu/kotatsu/core/cache/StubContentCache.kt

@@ -15,4 +15,8 @@ class StubContentCache : ContentCache {
 	override suspend fun getPages(source: MangaSource, url: String): List<MangaPage>? = null
 
 	override fun putPages(source: MangaSource, url: String, pages: SafeDeferred<List<MangaPage>>) = Unit
+
+	override suspend fun getRelatedManga(source: MangaSource, url: String): List<Manga>? = null
+
+	override fun putRelatedManga(source: MangaSource, url: String, related: SafeDeferred<List<Manga>>) = Unit
 }

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

@@ -6,17 +6,20 @@ import androidx.room.InvalidationTracker
 import androidx.room.Room
 import androidx.room.RoomDatabase
 import androidx.room.migration.Migration
+import kotlinx.coroutines.CoroutineStart
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.isActive
 import kotlinx.coroutines.launch
 import org.koitharu.kotatsu.bookmarks.data.BookmarkEntity
 import org.koitharu.kotatsu.bookmarks.data.BookmarksDao
 import org.koitharu.kotatsu.core.db.dao.MangaDao
+import org.koitharu.kotatsu.core.db.dao.MangaSourcesDao
 import org.koitharu.kotatsu.core.db.dao.PreferencesDao
 import org.koitharu.kotatsu.core.db.dao.TagsDao
 import org.koitharu.kotatsu.core.db.dao.TrackLogsDao
 import org.koitharu.kotatsu.core.db.entity.MangaEntity
 import org.koitharu.kotatsu.core.db.entity.MangaPrefsEntity
+import org.koitharu.kotatsu.core.db.entity.MangaSourceEntity
 import org.koitharu.kotatsu.core.db.entity.MangaTagsEntity
 import org.koitharu.kotatsu.core.db.entity.TagEntity
 import org.koitharu.kotatsu.core.db.migrations.Migration10To11
@@ -25,6 +28,7 @@ import org.koitharu.kotatsu.core.db.migrations.Migration12To13
 import org.koitharu.kotatsu.core.db.migrations.Migration13To14
 import org.koitharu.kotatsu.core.db.migrations.Migration14To15
 import org.koitharu.kotatsu.core.db.migrations.Migration15To16
+import org.koitharu.kotatsu.core.db.migrations.Migration16To17
 import org.koitharu.kotatsu.core.db.migrations.Migration1To2
 import org.koitharu.kotatsu.core.db.migrations.Migration2To3
 import org.koitharu.kotatsu.core.db.migrations.Migration3To4
@@ -49,14 +53,14 @@ import org.koitharu.kotatsu.tracker.data.TrackEntity
 import org.koitharu.kotatsu.tracker.data.TrackLogEntity
 import org.koitharu.kotatsu.tracker.data.TracksDao
 
-const val DATABASE_VERSION = 16
+const val DATABASE_VERSION = 17
 
 @Database(
 	entities = [
 		MangaEntity::class, TagEntity::class, HistoryEntity::class, MangaTagsEntity::class,
 		FavouriteCategoryEntity::class, FavouriteEntity::class, MangaPrefsEntity::class,
 		TrackEntity::class, TrackLogEntity::class, SuggestionEntity::class, BookmarkEntity::class,
-		ScrobblingEntity::class,
+		ScrobblingEntity::class, MangaSourceEntity::class,
 	],
 	version = DATABASE_VERSION,
 )
@@ -83,37 +87,39 @@ abstract class MangaDatabase : RoomDatabase() {
 	abstract val bookmarksDao: BookmarksDao
 
 	abstract val scrobblingDao: ScrobblingDao
+
+	abstract val sourcesDao: MangaSourcesDao
 }
 
-val databaseMigrations: Array<Migration>
+fun getDatabaseMigrations(context: Context): Array<Migration> = arrayOf(
-	get() = arrayOf(
+	Migration1To2(),
-		Migration1To2(),
+	Migration2To3(),
-		Migration2To3(),
+	Migration3To4(),
-		Migration3To4(),
+	Migration4To5(),
-		Migration4To5(),
+	Migration5To6(),
-		Migration5To6(),
+	Migration6To7(),
-		Migration6To7(),
+	Migration7To8(),
-		Migration7To8(),
+	Migration8To9(),
-		Migration8To9(),
+	Migration9To10(),
-		Migration9To10(),
+	Migration10To11(),
-		Migration10To11(),
+	Migration11To12(),
-		Migration11To12(),
+	Migration12To13(),
-		Migration12To13(),
+	Migration13To14(),
-		Migration13To14(),
+	Migration14To15(),
-		Migration14To15(),
+	Migration15To16(),
-		Migration15To16(),
+	Migration16To17(context),
-	)
+)
 
 fun MangaDatabase(context: Context): MangaDatabase = Room
 	.databaseBuilder(context, MangaDatabase::class.java, "kotatsu-db")
-	.addMigrations(*databaseMigrations)
+	.addMigrations(*getDatabaseMigrations(context))
 	.addCallback(DatabasePrePopulateCallback(context.resources))
 	.build()
 
 fun InvalidationTracker.removeObserverAsync(observer: InvalidationTracker.Observer) {
 	val scope = processLifecycleScope
 	if (scope.isActive) {
-		processLifecycleScope.launch(Dispatchers.Default) {
+		processLifecycleScope.launch(Dispatchers.Default, CoroutineStart.ATOMIC) {
 			removeObserver(observer)
 		}
 	}

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

@@ -6,3 +6,4 @@ const val TABLE_TAGS = "tags"
 const val TABLE_FAVOURITE_CATEGORIES = "favourite_categories"
 const val TABLE_HISTORY = "history"
 const val TABLE_MANGA_TAGS = "manga_tags"
+const val TABLE_SOURCES = "sources"

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

@@ -1,6 +1,12 @@
 package org.koitharu.kotatsu.core.db.dao
 
-import androidx.room.*
+import androidx.room.Dao
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import androidx.room.Transaction
+import androidx.room.Update
+import androidx.room.Upsert
 import org.koitharu.kotatsu.core.db.entity.MangaEntity
 import org.koitharu.kotatsu.core.db.entity.MangaTagsEntity
 import org.koitharu.kotatsu.core.db.entity.MangaWithTags
@@ -13,6 +19,10 @@ abstract class MangaDao {
 	@Query("SELECT * FROM manga WHERE manga_id = :id")
 	abstract suspend fun find(id: Long): MangaWithTags?
 
+	@Transaction
+	@Query("SELECT * FROM manga WHERE public_url = :publicUrl")
+	abstract suspend fun findByPublicUrl(publicUrl: String): MangaWithTags?
+
 	@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>
@@ -21,8 +31,8 @@ abstract class MangaDao {
 	@Query("SELECT * FROM manga WHERE (title LIKE :query OR alt_title LIKE :query) AND source = :source AND manga_id IN (SELECT manga_id FROM favourites UNION SELECT manga_id FROM history) LIMIT :limit")
 	abstract suspend fun searchByTitle(query: String, source: String, limit: Int): List<MangaWithTags>
 
-	@Insert(onConflict = OnConflictStrategy.IGNORE)
+	@Upsert
-	abstract suspend fun insert(manga: MangaEntity): Long
+	abstract suspend fun upsert(manga: MangaEntity)
 
 	@Update(onConflict = OnConflictStrategy.IGNORE)
 	abstract suspend fun update(manga: MangaEntity): Int
@@ -35,15 +45,13 @@ abstract class MangaDao {
 
 	@Transaction
 	open suspend fun upsert(manga: MangaEntity, tags: Iterable<TagEntity>? = null) {
-		if (update(manga) <= 0) {
+		upsert(manga)
-			insert(manga)
+		if (tags != null) {
-			if (tags != null) {
+			clearTagRelation(manga.id)
-				clearTagRelation(manga.id)
+			tags.map {
-				tags.map {
+				MangaTagsEntity(manga.id, it.id)
-					MangaTagsEntity(manga.id, it.id)
+			}.forEach {
-				}.forEach {
+				insertTagRelation(it)
-					insertTagRelation(it)
-				}
 			}
 		}
 	}

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

@@ -0,0 +1,57 @@
+package org.koitharu.kotatsu.core.db.dao
+
+import androidx.room.Dao
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import androidx.room.Transaction
+import androidx.room.Upsert
+import kotlinx.coroutines.flow.Flow
+import org.koitharu.kotatsu.core.db.entity.MangaSourceEntity
+
+@Dao
+abstract class MangaSourcesDao {
+
+	@Query("SELECT * FROM sources ORDER BY sort_key")
+	abstract suspend fun findAll(): List<MangaSourceEntity>
+
+	@Query("SELECT * FROM sources WHERE enabled = 1 ORDER BY sort_key")
+	abstract suspend fun findAllEnabled(): List<MangaSourceEntity>
+
+	@Query("SELECT * FROM sources WHERE enabled = 1 ORDER BY sort_key")
+	abstract fun observeEnabled(): Flow<List<MangaSourceEntity>>
+
+	@Query("SELECT * FROM sources ORDER BY sort_key")
+	abstract fun observeAll(): Flow<List<MangaSourceEntity>>
+
+	@Query("SELECT IFNULL(MAX(sort_key),0) FROM sources")
+	abstract suspend fun getMaxSortKey(): Int
+
+	@Query("UPDATE sources SET enabled = 0")
+	abstract suspend fun disableAllSources()
+
+	@Query("UPDATE sources SET sort_key = :sortKey WHERE source = :source")
+	abstract suspend fun setSortKey(source: String, sortKey: Int)
+
+	@Insert(onConflict = OnConflictStrategy.IGNORE)
+	@Transaction
+	abstract suspend fun insertIfAbsent(entries: Collection<MangaSourceEntity>)
+
+	@Upsert
+	abstract suspend fun upsert(entry: MangaSourceEntity)
+
+	@Transaction
+	open suspend fun setEnabled(source: String, isEnabled: Boolean) {
+		if (updateIsEnabled(source, isEnabled) == 0) {
+			val entity = MangaSourceEntity(
+				source = source,
+				isEnabled = isEnabled,
+				sortKey = getMaxSortKey() + 1,
+			)
+			upsert(entity)
+		}
+	}
+
+	@Query("UPDATE sources SET enabled = :isEnabled WHERE source = :source")
+	protected abstract suspend fun updateIsEnabled(source: String, isEnabled: Boolean): Int
+}

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

@@ -1,6 +1,8 @@
 package org.koitharu.kotatsu.core.db.dao
 
-import androidx.room.*
+import androidx.room.Dao
+import androidx.room.Query
+import androidx.room.Upsert
 import org.koitharu.kotatsu.core.db.entity.TagEntity
 
 @Dao
@@ -12,6 +14,7 @@ abstract class TagsDao {
 	@Query(
 		"""SELECT tags.* FROM tags
 		LEFT JOIN manga_tags ON tags.tag_id = manga_tags.tag_id
+		WHERE manga_tags.manga_id IN (SELECT manga_id FROM history UNION SELECT manga_id FROM favourites)
 		GROUP BY tags.title 
 		ORDER BY COUNT(manga_id) DESC 
 		LIMIT :limit""",
@@ -21,7 +24,7 @@ abstract class TagsDao {
 	@Query(
 		"""SELECT tags.* FROM tags
 		LEFT JOIN manga_tags ON tags.tag_id = manga_tags.tag_id 
-		WHERE tags.source = :source 
+		WHERE tags.source = :source  
 		GROUP BY tags.title
 		ORDER BY COUNT(manga_id) DESC 
 		LIMIT :limit""",
@@ -31,7 +34,7 @@ abstract class TagsDao {
 	@Query(
 		"""SELECT tags.* FROM tags
 		LEFT JOIN manga_tags ON tags.tag_id = manga_tags.tag_id 
-		WHERE tags.source = :source AND title LIKE :query
+		WHERE tags.source = :source AND title LIKE :query 
 		GROUP BY tags.title
 		ORDER BY COUNT(manga_id) DESC 
 		LIMIT :limit""",
@@ -41,13 +44,35 @@ abstract class TagsDao {
 	@Query(
 		"""SELECT tags.* FROM tags
 		LEFT JOIN manga_tags ON tags.tag_id = manga_tags.tag_id 
-		WHERE title LIKE :query
+		WHERE title LIKE :query AND manga_tags.manga_id IN (SELECT manga_id FROM history UNION SELECT manga_id FROM favourites)
 		GROUP BY tags.title
 		ORDER BY COUNT(manga_id) DESC 
 		LIMIT :limit""",
 	)
 	abstract suspend fun findTags(query: String, limit: Int): List<TagEntity>
 
+	@Query(
+		"""
+		SELECT tags.* FROM manga_tags 
+		LEFT JOIN tags ON tags.tag_id = manga_tags.tag_id 
+		WHERE manga_tags.manga_id IN (SELECT manga_id FROM manga_tags WHERE tag_id = :tagId)
+		GROUP BY tags.tag_id 
+		ORDER BY COUNT(manga_id) DESC;
+	""",
+	)
+	abstract suspend fun findRelatedTags(tagId: Long): List<TagEntity>
+
+	@Query(
+		"""
+		SELECT tags.* FROM manga_tags 
+		LEFT JOIN tags ON tags.tag_id = manga_tags.tag_id 
+		WHERE manga_tags.manga_id IN (SELECT manga_id FROM manga_tags WHERE tag_id IN (:ids))
+		GROUP BY tags.tag_id 
+		ORDER BY COUNT(manga_id) DESC;
+	""",
+	)
+	abstract suspend fun findRelatedTags(ids: Set<Long>): List<TagEntity>
+
 	@Upsert
 	abstract suspend fun upsert(tags: Iterable<TagEntity>)
 }

app/src/main/kotlin/org/koitharu/kotatsu/core/db/entity/EntityMapping.kt

@@ -19,6 +19,8 @@ fun TagEntity.toMangaTag() = MangaTag(
 
 fun Collection<TagEntity>.toMangaTags() = mapToSet(TagEntity::toMangaTag)
 
+fun Collection<TagEntity>.toMangaTagsList() = map(TagEntity::toMangaTag)
+
 fun MangaEntity.toManga(tags: Set<MangaTag>) = Manga(
 	id = this.id,
 	title = this.title,

app/src/main/kotlin/org/koitharu/kotatsu/core/db/entity/MangaSourceEntity.kt

@@ -0,0 +1,17 @@
+package org.koitharu.kotatsu.core.db.entity
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+import org.koitharu.kotatsu.core.db.TABLE_SOURCES
+
+@Entity(
+	tableName = TABLE_SOURCES,
+)
+data class MangaSourceEntity(
+	@PrimaryKey(autoGenerate = false)
+	@ColumnInfo(name = "source")
+	val source: String,
+	@ColumnInfo(name = "enabled") val isEnabled: Boolean,
+	@ColumnInfo(name = "sort_key", index = true) val sortKey: Int,
+)

app/src/main/kotlin/org/koitharu/kotatsu/core/db/entity/MangaWithTags.kt

@@ -4,7 +4,7 @@ import androidx.room.Embedded
 import androidx.room.Junction
 import androidx.room.Relation
 
-class MangaWithTags(
+data class MangaWithTags(
 	@Embedded val manga: MangaEntity,
 	@Relation(
 		parentColumn = "manga_id",
@@ -12,23 +12,4 @@ class MangaWithTags(
 		associateBy = Junction(MangaTagsEntity::class)
 	)
 	val tags: List<TagEntity>,
-) {
+)
-
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as MangaWithTags
-
-		if (manga != other.manga) return false
-		if (tags != other.tags) return false
-
-		return true
-	}
-
-	override fun hashCode(): Int {
-		var result = manga.hashCode()
-		result = 31 * result + tags.hashCode()
-		return result
-	}
-}

app/src/main/kotlin/org/koitharu/kotatsu/core/db/migrations/Migration13To14.kt

@@ -9,5 +9,7 @@ class Migration13To14 : Migration(13, 14) {
 		database.execSQL("ALTER TABLE favourite_categories ADD COLUMN `deleted_at` INTEGER NOT NULL DEFAULT 0")
 		database.execSQL("ALTER TABLE favourites ADD COLUMN `deleted_at` INTEGER NOT NULL DEFAULT 0")
 		database.execSQL("ALTER TABLE history ADD COLUMN `deleted_at` INTEGER NOT NULL DEFAULT 0")
+		database.execSQL("ALTER TABLE preferences ADD COLUMN `cf_brightness` REAL NOT NULL DEFAULT 0")
+		database.execSQL("ALTER TABLE preferences ADD COLUMN `cf_contrast` REAL NOT NULL DEFAULT 0")
 	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/core/db/migrations/Migration14To15.kt

@@ -5,8 +5,5 @@ import androidx.sqlite.db.SupportSQLiteDatabase
 
 class Migration14To15 : Migration(14, 15) {
 
-	override fun migrate(database: SupportSQLiteDatabase) {
+	override fun migrate(database: SupportSQLiteDatabase) = Unit
-		database.execSQL("ALTER TABLE preferences ADD COLUMN `cf_brightness` REAL NOT NULL DEFAULT 0")
-		database.execSQL("ALTER TABLE preferences ADD COLUMN `cf_contrast` REAL NOT NULL DEFAULT 0")
-	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/core/db/migrations/Migration16To17.kt

@@ -0,0 +1,41 @@
+package org.koitharu.kotatsu.core.db.migrations
+
+import android.content.Context
+import androidx.preference.PreferenceManager
+import androidx.room.migration.Migration
+import androidx.sqlite.db.SupportSQLiteDatabase
+import org.koitharu.kotatsu.parsers.model.MangaSource
+
+class Migration16To17(context: Context) : Migration(16, 17) {
+
+	private val prefs = PreferenceManager.getDefaultSharedPreferences(context)
+
+	override fun migrate(database: SupportSQLiteDatabase) {
+		database.execSQL("CREATE TABLE `sources` (`source` TEXT NOT NULL, `enabled` INTEGER NOT NULL, `sort_key` INTEGER NOT NULL, PRIMARY KEY(`source`))")
+		database.execSQL("CREATE INDEX `index_sources_sort_key` ON `sources` (`sort_key`)")
+		val hiddenSources = prefs.getStringSet("sources_hidden", null).orEmpty()
+		val order = prefs.getString("sources_order_2", null)?.split('|').orEmpty()
+		val sources = MangaSource.entries
+		for (source in sources) {
+			if (source == MangaSource.LOCAL) {
+				continue
+			}
+			val name = source.name
+			val isHidden = name in hiddenSources
+			var sortKey = order.indexOf(name)
+			if (sortKey == -1) {
+				if (isHidden) {
+					sortKey = order.size + source.ordinal
+				} else {
+					continue
+				}
+			}
+			database.execSQL(
+				"INSERT INTO `sources` (`source`, `enabled`, `sort_key`) VALUES (?, ?, ?)",
+				arrayOf(name, (!isHidden).toInt(), sortKey),
+			)
+		}
+	}
+
+	private fun Boolean.toInt() = if (this) 1 else 0
+}

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

@@ -2,8 +2,10 @@ package org.koitharu.kotatsu.core.exceptions
 
 import okhttp3.Headers
 import okio.IOException
+import org.koitharu.kotatsu.parsers.model.MangaSource
 
 class CloudFlareProtectedException(
 	val url: String,
+	val source: MangaSource?,
 	@Transient val headers: Headers,
 ) : IOException("Protected by CloudFlare")

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

@@ -0,0 +1,13 @@
+package org.koitharu.kotatsu.core.exceptions
+
+import okio.IOException
+import java.util.Date
+
+class TooManyRequestExceptions(
+	val url: String,
+	val retryAt: Date?,
+) : IOException() {
+
+	val retryAfter: Long
+		get() = if (retryAt == null) 0 else (retryAt.time - System.currentTimeMillis()).coerceAtLeast(0)
+}

app/src/main/kotlin/org/koitharu/kotatsu/core/fs/FileSequence.kt

@@ -0,0 +1,20 @@
+package org.koitharu.kotatsu.core.fs
+
+import android.os.Build
+import org.koitharu.kotatsu.core.util.iterator.CloseableIterator
+import org.koitharu.kotatsu.core.util.iterator.MappingIterator
+import java.io.File
+import java.nio.file.Files
+import java.nio.file.Path
+
+class FileSequence(private val dir: File) : Sequence<File> {
+
+	override fun iterator(): Iterator<File> {
+		return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+			val stream = Files.newDirectoryStream(dir.toPath())
+			CloseableIterator(MappingIterator(stream.iterator(), Path::toFile), stream)
+		} else {
+			dir.listFiles().orEmpty().iterator()
+		}
+	}
+}

app/src/main/kotlin/org/koitharu/kotatsu/core/github/VersionId.kt

@@ -2,7 +2,7 @@ package org.koitharu.kotatsu.core.github
 
 import java.util.*
 
-class VersionId(
+data class VersionId(
 	val major: Int,
 	val minor: Int,
 	val build: Int,
@@ -30,30 +30,6 @@ class VersionId(
 		return variantNumber.compareTo(other.variantNumber)
 	}
 
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as VersionId
-
-		if (major != other.major) return false
-		if (minor != other.minor) return false
-		if (build != other.build) return false
-		if (variantType != other.variantType) return false
-		if (variantNumber != other.variantNumber) return false
-
-		return true
-	}
-
-	override fun hashCode(): Int {
-		var result = major
-		result = 31 * result + minor
-		result = 31 * result + build
-		result = 31 * result + variantType.hashCode()
-		result = 31 * result + variantNumber
-		return result
-	}
-
 	private fun variantWeight(variantType: String) = when (variantType.lowercase(Locale.ROOT)) {
 		"a", "alpha" -> 1
 		"b", "beta" -> 2

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

@@ -2,8 +2,10 @@ package org.koitharu.kotatsu.core.model
 
 import android.os.Parcelable
 import kotlinx.parcelize.Parcelize
+import org.koitharu.kotatsu.list.ui.ListModelDiffCallback
+import org.koitharu.kotatsu.list.ui.model.ListModel
 import org.koitharu.kotatsu.parsers.model.SortOrder
-import java.util.*
+import java.util.Date
 
 @Parcelize
 data class FavouriteCategory(
@@ -14,4 +16,20 @@ data class FavouriteCategory(
 	val createdAt: Date,
 	val isTrackingEnabled: Boolean,
 	val isVisibleInLibrary: Boolean,
-) : Parcelable
+) : Parcelable, ListModel {
+
+	override fun areItemsTheSame(other: ListModel): Boolean {
+		return other is FavouriteCategory && id == other.id
+	}
+
+	override fun getChangePayload(previousState: ListModel): Any? {
+		if (previousState !is FavouriteCategory) {
+			return null
+		}
+		return if (isTrackingEnabled != previousState.isTrackingEnabled || isVisibleInLibrary != previousState.isVisibleInLibrary) {
+			ListModelDiffCallback.PAYLOAD_CHECKED_CHANGED
+		} else {
+			null
+		}
+	}
+}

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

@@ -1,5 +1,6 @@
 package org.koitharu.kotatsu.core.model
 
+import android.net.Uri
 import androidx.core.os.LocaleListCompat
 import org.koitharu.kotatsu.core.util.ext.iterator
 import org.koitharu.kotatsu.details.ui.model.ChapterListItem
@@ -16,6 +17,8 @@ fun Collection<Manga>.distinctById() = distinctBy { it.id }
 @JvmName("chaptersIds")
 fun Collection<MangaChapter>.ids() = mapToSet { it.id }
 
+fun Collection<MangaChapter>.findById(id: Long) = find { x -> x.id == id }
+
 fun Collection<ChapterListItem>.countChaptersByBranch(): Int {
 	if (size <= 1) {
 		return size
@@ -29,7 +32,7 @@ fun Collection<ChapterListItem>.countChaptersByBranch(): Int {
 }
 
 fun Manga.findChapter(id: Long): MangaChapter? {
-	return chapters?.find { it.id == id }
+	return chapters?.findById(id)
 }
 
 fun Manga.getPreferredBranch(history: MangaHistory?): String? {
@@ -38,7 +41,7 @@ fun Manga.getPreferredBranch(history: MangaHistory?): String? {
 		return null
 	}
 	if (history != null) {
-		val currentChapter = ch.find { it.id == history.chapterId }
+		val currentChapter = ch.findById(history.chapterId)
 		if (currentChapter != null) {
 			return currentChapter.branch
 		}
@@ -47,10 +50,10 @@ fun Manga.getPreferredBranch(history: MangaHistory?): String? {
 	if (groups.size == 1) {
 		return groups.keys.first()
 	}
-	val candidates = HashMap<String?, List<MangaChapter>>(groups.size)
 	for (locale in LocaleListCompat.getAdjustedDefault()) {
 		val displayLanguage = locale.getDisplayLanguage(locale)
 		val displayName = locale.getDisplayName(locale)
+		val candidates = HashMap<String?, List<MangaChapter>>(3)
 		for (branch in groups.keys) {
 			if (branch != null && (
 					branch.contains(displayLanguage, ignoreCase = true) ||
@@ -60,9 +63,19 @@ fun Manga.getPreferredBranch(history: MangaHistory?): String? {
 				candidates[branch] = groups[branch] ?: continue
 			}
 		}
+		if (candidates.isNotEmpty()) {
+			return candidates.maxBy { it.value.size }.key
+		}
 	}
-	return candidates.ifEmpty { groups }.maxByOrNull { it.value.size }?.key
+	return groups.maxByOrNull { it.value.size }?.key
 }
 
 val Manga.isLocal: Boolean
 	get() = source == MangaSource.LOCAL
+
+val Manga.appUrl: Uri
+	get() = Uri.parse("https://kotatsu.app/manga").buildUpon()
+		.appendQueryParameter("source", source.name)
+		.appendQueryParameter("name", title)
+		.appendQueryParameter("url", url)
+		.build()

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

@@ -1,5 +1,6 @@
 package org.koitharu.kotatsu.core.model
 
+import org.koitharu.kotatsu.parsers.model.ContentType
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.util.toTitleCase
 import java.util.Locale
@@ -10,8 +11,10 @@ fun MangaSource.getLocaleTitle(): String? {
 }
 
 fun MangaSource(name: String): MangaSource {
-	MangaSource.values().forEach {
+	MangaSource.entries.forEach {
 		if (it.name == name) return it
 	}
 	return MangaSource.DUMMY
 }
+
+fun MangaSource.isNsfw() = contentType == ContentType.HENTAI

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

@@ -1,98 +0,0 @@
-package org.koitharu.kotatsu.core.model.parcelable
-
-import android.os.Parcel
-import androidx.core.os.ParcelCompat
-import org.koitharu.kotatsu.core.util.ext.readParcelableCompat
-import org.koitharu.kotatsu.core.util.ext.readSerializableCompat
-import org.koitharu.kotatsu.parsers.model.Manga
-import org.koitharu.kotatsu.parsers.model.MangaChapter
-import org.koitharu.kotatsu.parsers.model.MangaPage
-import org.koitharu.kotatsu.parsers.model.MangaTag
-
-fun Manga.writeToParcel(out: Parcel, flags: Int, withChapters: Boolean) {
-	out.writeLong(id)
-	out.writeString(title)
-	out.writeString(altTitle)
-	out.writeString(url)
-	out.writeString(publicUrl)
-	out.writeFloat(rating)
-	ParcelCompat.writeBoolean(out, isNsfw)
-	out.writeString(coverUrl)
-	out.writeString(largeCoverUrl)
-	out.writeString(description)
-	out.writeParcelable(ParcelableMangaTags(tags), flags)
-	out.writeSerializable(state)
-	out.writeString(author)
-	if (withChapters) {
-		out.writeParcelable(chapters?.let(::ParcelableMangaChapters), flags)
-	} else {
-		out.writeString(null)
-	}
-	out.writeSerializable(source)
-}
-
-fun Parcel.readManga() = Manga(
-	id = readLong(),
-	title = requireNotNull(readString()),
-	altTitle = readString(),
-	url = requireNotNull(readString()),
-	publicUrl = requireNotNull(readString()),
-	rating = readFloat(),
-	isNsfw = ParcelCompat.readBoolean(this),
-	coverUrl = requireNotNull(readString()),
-	largeCoverUrl = readString(),
-	description = readString(),
-	tags = requireNotNull(readParcelableCompat<ParcelableMangaTags>()).tags,
-	state = readSerializableCompat(),
-	author = readString(),
-	chapters = readParcelableCompat<ParcelableMangaChapters>()?.chapters,
-	source = checkNotNull(readSerializableCompat()),
-)
-
-fun MangaPage.writeToParcel(out: Parcel) {
-	out.writeLong(id)
-	out.writeString(url)
-	out.writeString(preview)
-	out.writeSerializable(source)
-}
-
-fun Parcel.readMangaPage() = MangaPage(
-	id = readLong(),
-	url = requireNotNull(readString()),
-	preview = readString(),
-	source = checkNotNull(readSerializableCompat()),
-)
-
-fun MangaChapter.writeToParcel(out: Parcel) {
-	out.writeLong(id)
-	out.writeString(name)
-	out.writeInt(number)
-	out.writeString(url)
-	out.writeString(scanlator)
-	out.writeLong(uploadDate)
-	out.writeString(branch)
-	out.writeSerializable(source)
-}
-
-fun Parcel.readMangaChapter() = MangaChapter(
-	id = readLong(),
-	name = requireNotNull(readString()),
-	number = readInt(),
-	url = requireNotNull(readString()),
-	scanlator = readString(),
-	uploadDate = readLong(),
-	branch = readString(),
-	source = checkNotNull(readSerializableCompat()),
-)
-
-fun MangaTag.writeToParcel(out: Parcel) {
-	out.writeString(title)
-	out.writeString(key)
-	out.writeSerializable(source)
-}
-
-fun Parcel.readMangaTag() = MangaTag(
-	title = requireNotNull(readString()),
-	key = requireNotNull(readString()),
-	source = checkNotNull(readSerializableCompat()),
-)

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

@@ -0,0 +1,42 @@
+package org.koitharu.kotatsu.core.model.parcelable
+
+import android.os.Parcel
+import android.os.Parcelable
+import kotlinx.parcelize.Parceler
+import kotlinx.parcelize.Parcelize
+import org.koitharu.kotatsu.core.util.ext.readSerializableCompat
+import org.koitharu.kotatsu.parsers.model.MangaChapter
+import org.koitharu.kotatsu.parsers.model.MangaSource
+
+@Parcelize
+data class ParcelableChapter(
+	val chapter: MangaChapter,
+) : Parcelable {
+
+	companion object : Parceler<ParcelableChapter> {
+
+		override fun create(parcel: Parcel) = ParcelableChapter(
+			MangaChapter(
+				id = parcel.readLong(),
+				name = parcel.readString().orEmpty(),
+				number = parcel.readInt(),
+				url = parcel.readString().orEmpty(),
+				scanlator = parcel.readString(),
+				uploadDate = parcel.readLong(),
+				branch = parcel.readString(),
+				source = parcel.readSerializableCompat() ?: MangaSource.DUMMY,
+			)
+		)
+
+		override fun ParcelableChapter.write(parcel: Parcel, flags: Int) = with(chapter) {
+			parcel.writeLong(id)
+			parcel.writeString(name)
+			parcel.writeInt(number)
+			parcel.writeString(url)
+			parcel.writeString(scanlator)
+			parcel.writeLong(uploadDate)
+			parcel.writeString(branch)
+			parcel.writeSerializable(source)
+		}
+	}
+}

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

@@ -2,56 +2,55 @@ package org.koitharu.kotatsu.core.model.parcelable
 
 import android.os.Parcel
 import android.os.Parcelable
+import androidx.core.os.ParcelCompat
+import kotlinx.parcelize.Parceler
+import kotlinx.parcelize.Parcelize
+import org.koitharu.kotatsu.core.util.ext.readParcelableCompat
+import org.koitharu.kotatsu.core.util.ext.readSerializableCompat
 import org.koitharu.kotatsu.parsers.model.Manga
 
-// Limits to avoid TransactionTooLargeException
+@Parcelize
-private const val MAX_SAFE_SIZE = 1024 * 100 // Assume that 100 kb is safe parcel size
+data class ParcelableManga(
-private const val MAX_SAFE_CHAPTERS_COUNT = 24 // this is 100% safe
-
-class ParcelableManga(
 	val manga: Manga,
-	private val withChapters: Boolean,
 ) : Parcelable {
 
-	constructor(parcel: Parcel) : this(parcel.readManga(), true)
+	companion object : Parceler<ParcelableManga> {
 
-	override fun writeToParcel(parcel: Parcel, flags: Int) {
+		override fun ParcelableManga.write(parcel: Parcel, flags: Int) = with(manga) {
-		val chapters = manga.chapters
+			parcel.writeLong(id)
-		if (!withChapters || chapters == null) {
+			parcel.writeString(title)
-			manga.writeToParcel(parcel, flags, withChapters = false)
+			parcel.writeString(altTitle)
-			return
+			parcel.writeString(url)
-		}
+			parcel.writeString(publicUrl)
-		if (chapters.size <= MAX_SAFE_CHAPTERS_COUNT) {
+			parcel.writeFloat(rating)
-			// fast path
+			ParcelCompat.writeBoolean(parcel, isNsfw)
-			manga.writeToParcel(parcel, flags, withChapters = true)
+			parcel.writeString(coverUrl)
-			return
+			parcel.writeString(largeCoverUrl)
-		}
+			parcel.writeString(description)
-		val tempParcel = Parcel.obtain()
+			parcel.writeParcelable(ParcelableMangaTags(tags), flags)
-		manga.writeToParcel(tempParcel, flags, withChapters = true)
+			parcel.writeSerializable(state)
-		val size = tempParcel.dataSize()
+			parcel.writeString(author)
-		if (size < MAX_SAFE_SIZE) {
+			parcel.writeSerializable(source)
-			parcel.appendFrom(tempParcel, 0, size)
-		} else {
-			manga.writeToParcel(parcel, flags, withChapters = false)
-		}
-		tempParcel.recycle()
-	}
-
-	override fun describeContents(): Int {
-		return 0
-	}
-
-	override fun toString(): String {
-		return "ParcelableManga(manga=$manga, withChapters=$withChapters)"
-	}
-
-	companion object CREATOR : Parcelable.Creator<ParcelableManga> {
-		override fun createFromParcel(parcel: Parcel): ParcelableManga {
-			return ParcelableManga(parcel)
 		}
 
-		override fun newArray(size: Int): Array<ParcelableManga?> {
+		override fun create(parcel: Parcel) = ParcelableManga(
-			return arrayOfNulls(size)
+			Manga(
-		}
+				id = parcel.readLong(),
+				title = requireNotNull(parcel.readString()),
+				altTitle = parcel.readString(),
+				url = requireNotNull(parcel.readString()),
+				publicUrl = requireNotNull(parcel.readString()),
+				rating = parcel.readFloat(),
+				isNsfw = ParcelCompat.readBoolean(parcel),
+				coverUrl = requireNotNull(parcel.readString()),
+				largeCoverUrl = parcel.readString(),
+				description = parcel.readString(),
+				tags = requireNotNull(parcel.readParcelableCompat<ParcelableMangaTags>()).tags,
+				state = parcel.readSerializableCompat(),
+				author = parcel.readString(),
+				chapters = null,
+				source = requireNotNull(parcel.readSerializableCompat()),
+			)
+		)
 	}
 }

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

@@ -1,39 +0,0 @@
-package org.koitharu.kotatsu.core.model.parcelable
-
-import android.os.Parcel
-import android.os.Parcelable
-import org.koitharu.kotatsu.parsers.model.MangaChapter
-
-class ParcelableMangaChapters(
-	val chapters: List<MangaChapter>,
-) : Parcelable {
-
-	constructor(parcel: Parcel) : this(
-		List(parcel.readInt()) { parcel.readMangaChapter() }
-	)
-
-	override fun writeToParcel(parcel: Parcel, flags: Int) {
-		parcel.writeInt(chapters.size)
-		for (chapter in chapters) {
-			chapter.writeToParcel(parcel)
-		}
-	}
-
-	override fun describeContents(): Int {
-		return 0
-	}
-
-	override fun toString(): String {
-		return "ParcelableMangaChapters(chapters=$chapters)"
-	}
-
-	companion object CREATOR : Parcelable.Creator<ParcelableMangaChapters> {
-		override fun createFromParcel(parcel: Parcel): ParcelableMangaChapters {
-			return ParcelableMangaChapters(parcel)
-		}
-
-		override fun newArray(size: Int): Array<ParcelableMangaChapters?> {
-			return arrayOfNulls(size)
-		}
-	}
-}

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

@@ -0,0 +1,29 @@
+package org.koitharu.kotatsu.core.model.parcelable
+
+import android.os.Parcel
+import android.os.Parcelable
+import kotlinx.parcelize.Parceler
+import kotlinx.parcelize.Parcelize
+import kotlinx.parcelize.TypeParceler
+import org.koitharu.kotatsu.core.util.ext.readSerializableCompat
+import org.koitharu.kotatsu.parsers.model.MangaPage
+
+object MangaPageParceler : Parceler<MangaPage> {
+	override fun create(parcel: Parcel) = MangaPage(
+		id = parcel.readLong(),
+		url = requireNotNull(parcel.readString()),
+		preview = parcel.readString(),
+		source = requireNotNull(parcel.readSerializableCompat()),
+	)
+
+	override fun MangaPage.write(parcel: Parcel, flags: Int) {
+		parcel.writeLong(id)
+		parcel.writeString(url)
+		parcel.writeString(preview)
+		parcel.writeSerializable(source)
+	}
+}
+
+@Parcelize
+@TypeParceler<MangaPage, MangaPageParceler>
+class ParcelableMangaPage(val page: MangaPage) : Parcelable

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

@@ -1,39 +0,0 @@
-package org.koitharu.kotatsu.core.model.parcelable
-
-import android.os.Parcel
-import android.os.Parcelable
-import org.koitharu.kotatsu.parsers.model.MangaPage
-
-class ParcelableMangaPages(
-	val pages: List<MangaPage>,
-) : Parcelable {
-
-	constructor(parcel: Parcel) : this(
-		List(parcel.readInt()) { parcel.readMangaPage() }
-	)
-
-	override fun writeToParcel(parcel: Parcel, flags: Int) {
-		parcel.writeInt(pages.size)
-		for (page in pages) {
-			page.writeToParcel(parcel)
-		}
-	}
-
-	override fun describeContents(): Int {
-		return 0
-	}
-
-	override fun toString(): String {
-		return "ParcelableMangaPages(pages=$pages)"
-	}
-
-	companion object CREATOR : Parcelable.Creator<ParcelableMangaPages> {
-		override fun createFromParcel(parcel: Parcel): ParcelableMangaPages {
-			return ParcelableMangaPages(parcel)
-		}
-
-		override fun newArray(size: Int): Array<ParcelableMangaPages?> {
-			return arrayOfNulls(size)
-		}
-	}
-}

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

@@ -2,39 +2,26 @@ package org.koitharu.kotatsu.core.model.parcelable
 
 import android.os.Parcel
 import android.os.Parcelable
-import org.koitharu.kotatsu.core.util.ext.Set
+import kotlinx.parcelize.Parceler
+import kotlinx.parcelize.Parcelize
+import kotlinx.parcelize.TypeParceler
+import org.koitharu.kotatsu.core.util.ext.readSerializableCompat
 import org.koitharu.kotatsu.parsers.model.MangaTag
 
-class ParcelableMangaTags(
+object MangaTagParceler : Parceler<MangaTag> {
-	val tags: Set<MangaTag>,
+	override fun create(parcel: Parcel) = MangaTag(
-) : Parcelable {
+		title = requireNotNull(parcel.readString()),
-
+		key = requireNotNull(parcel.readString()),
-	constructor(parcel: Parcel) : this(
+		source = requireNotNull(parcel.readSerializableCompat()),
-		Set(parcel.readInt()) { parcel.readMangaTag() },
 	)
 
-	override fun writeToParcel(parcel: Parcel, flags: Int) {
+	override fun MangaTag.write(parcel: Parcel, flags: Int) {
-		parcel.writeInt(tags.size)
+		parcel.writeString(title)
-		for (tag in tags) {
+		parcel.writeString(key)
-			tag.writeToParcel(parcel)
+		parcel.writeSerializable(source)
-		}
-	}
-
-	override fun describeContents(): Int {
-		return 0
-	}
-
-	override fun toString(): String {
-		return "ParcelableMangaTags(tags=$tags)"
-	}
-
-	companion object CREATOR : Parcelable.Creator<ParcelableMangaTags> {
-		override fun createFromParcel(parcel: Parcel): ParcelableMangaTags {
-			return ParcelableMangaTags(parcel)
-		}
-
-		override fun newArray(size: Int): Array<ParcelableMangaTags?> {
-			return arrayOfNulls(size)
-		}
 	}
 }
+
+@Parcelize
+@TypeParceler<MangaTag, MangaTagParceler>
+data class ParcelableMangaTags(val tags: Set<MangaTag>) : Parcelable

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

@@ -3,23 +3,26 @@ package org.koitharu.kotatsu.core.network
 import okhttp3.Interceptor
 import okhttp3.Response
 import okhttp3.internal.closeQuietly
+import org.jsoup.Jsoup
 import org.koitharu.kotatsu.core.exceptions.CloudFlareProtectedException
+import org.koitharu.kotatsu.parsers.model.MangaSource
 import java.net.HttpURLConnection.HTTP_FORBIDDEN
 import java.net.HttpURLConnection.HTTP_UNAVAILABLE
 
-private const val HEADER_SERVER = "Server"
-private const val SERVER_CLOUDFLARE = "cloudflare"
-
 class CloudFlareInterceptor : Interceptor {
 
 	override fun intercept(chain: Interceptor.Chain): Response {
 		val response = chain.proceed(chain.request())
 		if (response.code == HTTP_FORBIDDEN || response.code == HTTP_UNAVAILABLE) {
-			if (response.header(HEADER_SERVER)?.startsWith(SERVER_CLOUDFLARE) == true) {
+			val content = response.body?.source()?.peek()?.use {
+				Jsoup.parse(it.inputStream(), Charsets.UTF_8.name(), response.request.url.toString())
+			} ?: return response
+			if (content.getElementById("challenge-error-title") != null) {
 				val request = response.request
 				response.closeQuietly()
 				throw CloudFlareProtectedException(
 					url = request.url.toString(),
+					source = request.tag(MangaSource::class.java),
 					headers = request.headers,
 				)
 			}

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

@@ -15,6 +15,7 @@ object CommonHeaders {
 	const val AUTHORIZATION = "Authorization"
 	const val CACHE_CONTROL = "Cache-Control"
 	const val PROXY_AUTHORIZATION = "Proxy-Authorization"
+	const val RETRY_AFTER = "Retry-After"
 
 	val CACHE_CONTROL_NO_STORE: CacheControl
 		get() = CacheControl.Builder().noStore().build()

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

@@ -1,6 +1,9 @@
 package org.koitharu.kotatsu.core.network
 
+import androidx.collection.ArraySet
 import dagger.Lazy
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.runInterruptible
 import okhttp3.Interceptor
 import okhttp3.Request
 import okhttp3.Response
@@ -13,6 +16,7 @@ import org.koitharu.kotatsu.core.parser.MangaRepository
 import org.koitharu.kotatsu.core.parser.RemoteMangaRepository
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.parsers.model.MangaSource
+import java.util.EnumMap
 import javax.inject.Inject
 import javax.inject.Singleton
 
@@ -22,9 +26,15 @@ class MirrorSwitchInterceptor @Inject constructor(
 	private val settings: AppSettings,
 ) : Interceptor {
 
+	private val locks = EnumMap<MangaSource, Any>(MangaSource::class.java)
+	private val blacklist = EnumMap<MangaSource, MutableSet<String>>(MangaSource::class.java)
+
+	val isEnabled: Boolean
+		get() = settings.isMirrorSwitchingAvailable
+
 	override fun intercept(chain: Interceptor.Chain): Response {
 		val request = chain.request()
-		if (!settings.isMirrorSwitchingAvailable) {
+		if (!isEnabled) {
 			return chain.proceed(request)
 		}
 		return try {
@@ -43,6 +53,30 @@ class MirrorSwitchInterceptor @Inject constructor(
 		}
 	}
 
+	suspend fun trySwitchMirror(repository: RemoteMangaRepository): Boolean = runInterruptible(Dispatchers.Default) {
+		if (!isEnabled) {
+			return@runInterruptible false
+		}
+		val mirrors = repository.getAvailableMirrors()
+		if (mirrors.size <= 1) {
+			return@runInterruptible false
+		}
+		synchronized(obtainLock(repository.source)) {
+			val currentMirror = repository.domain
+			addToBlacklist(repository.source, currentMirror)
+			val newMirror = mirrors.firstOrNull { x ->
+				x != currentMirror && !isBlacklisted(repository.source, x)
+			} ?: return@synchronized false
+			repository.domain = newMirror
+			true
+		}
+	}
+
+	fun rollback(repository: RemoteMangaRepository, oldMirror: String) = synchronized(obtainLock(repository.source)) {
+		blacklist[repository.source]?.remove(oldMirror)
+		repository.domain = oldMirror
+	}
+
 	private fun trySwitchMirror(request: Request, chain: Interceptor.Chain): Response? {
 		val source = request.tag(MangaSource::class.java) ?: return null
 		val repository = mangaRepositoryFactoryLazy.get().create(source) as? RemoteMangaRepository ?: return null
@@ -50,7 +84,9 @@ class MirrorSwitchInterceptor @Inject constructor(
 		if (mirrors.isEmpty()) {
 			return null
 		}
-		return tryMirrors(repository, mirrors, chain, request)
+		return synchronized(obtainLock(repository.source)) {
+			tryMirrors(repository, mirrors, chain, request)
+		}
 	}
 
 	private fun tryMirrors(
@@ -66,7 +102,7 @@ class MirrorSwitchInterceptor @Inject constructor(
 		}
 		val urlBuilder = url.newBuilder()
 		for (mirror in mirrors) {
-			if (mirror == currentDomain) {
+			if (mirror == currentDomain || isBlacklisted(repository.source, mirror)) {
 				continue
 			}
 			val newHost = hostOf(url.host, mirror) ?: continue
@@ -75,6 +111,7 @@ class MirrorSwitchInterceptor @Inject constructor(
 				.build()
 			val response = chain.proceed(newRequest)
 			if (response.isFailed) {
+				addToBlacklist(repository.source, mirror)
 				response.closeQuietly()
 			} else {
 				repository.domain = mirror
@@ -104,4 +141,18 @@ class MirrorSwitchInterceptor @Inject constructor(
 	private fun ResponseBody.copy(): ResponseBody {
 		return source().readByteArray().toResponseBody(contentType())
 	}
+
+	private fun obtainLock(source: MangaSource): Any = locks.getOrPut(source) {
+		Any()
+	}
+
+	private fun isBlacklisted(source: MangaSource, domain: String): Boolean {
+		return blacklist[source]?.contains(domain) == true
+	}
+
+	private fun addToBlacklist(source: MangaSource, domain: String) {
+		blacklist.getOrPut(source) {
+			ArraySet(2)
+		}.add(domain)
+	}
 }

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

@@ -67,6 +67,7 @@ interface NetworkModule {
 			cache(cache)
 			addInterceptor(GZipInterceptor())
 			addInterceptor(CloudFlareInterceptor())
+			addInterceptor(RateLimitInterceptor())
 			if (BuildConfig.DEBUG) {
 				addInterceptor(CurlLoggingInterceptor())
 			}

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

@@ -0,0 +1,36 @@
+package org.koitharu.kotatsu.core.network
+
+import okhttp3.Interceptor
+import okhttp3.Response
+import okhttp3.internal.closeQuietly
+import org.koitharu.kotatsu.core.exceptions.TooManyRequestExceptions
+import java.text.SimpleDateFormat
+import java.util.Date
+import java.util.Locale
+import java.util.concurrent.TimeUnit
+
+class RateLimitInterceptor : Interceptor {
+
+	private val dateFormat = SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss ZZZ", Locale.ENGLISH)
+
+	override fun intercept(chain: Interceptor.Chain): Response {
+		val response = chain.proceed(chain.request())
+		if (response.code == 429) {
+			val retryDate = response.header(CommonHeaders.RETRY_AFTER)?.parseRetryDate()
+			val request = response.request
+			response.closeQuietly()
+			throw TooManyRequestExceptions(
+				url = request.url.toString(),
+				retryAt = retryDate,
+			)
+		}
+		return response
+	}
+
+	private fun String.parseRetryDate(): Date? {
+		toIntOrNull()?.let {
+			return Date(System.currentTimeMillis() + TimeUnit.SECONDS.toMillis(it.toLong()))
+		}
+		return dateFormat.parse(this)
+	}
+}

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

@@ -2,6 +2,7 @@ package org.koitharu.kotatsu.core.network.cookies
 
 import android.webkit.CookieManager
 import androidx.annotation.WorkerThread
+import androidx.core.util.Predicate
 import okhttp3.Cookie
 import okhttp3.HttpUrl
 import org.koitharu.kotatsu.core.util.ext.newBuilder
@@ -31,19 +32,21 @@ class AndroidCookieJar : MutableCookieJar {
 		}
 	}
 
-	override fun removeCookies(url: HttpUrl) {
+	override fun removeCookies(url: HttpUrl, predicate: Predicate<Cookie>?) {
 		val cookies = loadForRequest(url)
 		if (cookies.isEmpty()) {
 			return
 		}
 		val urlString = url.toString()
 		for (c in cookies) {
+			if (predicate != null && !predicate.test(c)) {
+				continue
+			}
 			val nc = c.newBuilder()
 				.expiresAt(System.currentTimeMillis() - 100000)
 				.build()
 			cookieManager.setCookie(urlString, nc.toString())
 		}
-		check(loadForRequest(url).isEmpty())
 	}
 
 	override suspend fun clear() = suspendCoroutine<Boolean> { continuation ->

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

@@ -8,7 +8,7 @@ import java.io.ObjectInputStream
 import java.io.ObjectOutputStream
 
 
-class CookieWrapper(
+data class CookieWrapper(
 	val cookie: Cookie,
 ) {
 
@@ -66,19 +66,4 @@ class CookieWrapper(
 	fun key(): String {
 		return (if (cookie.secure) "https" else "http") + "://" + cookie.domain + cookie.path + "|" + cookie.name
 	}
-
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as CookieWrapper
-
-		if (cookie != other.cookie) return false
-
-		return true
-	}
-
-	override fun hashCode(): Int {
-		return cookie.hashCode()
-	}
 }

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

@@ -1,6 +1,7 @@
 package org.koitharu.kotatsu.core.network.cookies
 
 import androidx.annotation.WorkerThread
+import androidx.core.util.Predicate
 import okhttp3.Cookie
 import okhttp3.CookieJar
 import okhttp3.HttpUrl
@@ -14,7 +15,7 @@ interface MutableCookieJar : CookieJar {
 	override fun saveFromResponse(url: HttpUrl, cookies: List<Cookie>)
 
 	@WorkerThread
-	fun removeCookies(url: HttpUrl)
+	fun removeCookies(url: HttpUrl, predicate: Predicate<Cookie>?)
 
 	suspend fun clear(): Boolean
 }

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

@@ -4,6 +4,7 @@ import android.content.Context
 import androidx.annotation.WorkerThread
 import androidx.collection.ArrayMap
 import androidx.core.content.edit
+import androidx.core.util.Predicate
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 import okhttp3.Cookie
@@ -57,12 +58,14 @@ class PreferencesCookieJar(
 
 	@Synchronized
 	@WorkerThread
-	override fun removeCookies(url: HttpUrl) {
+	override fun removeCookies(url: HttpUrl, predicate: Predicate<Cookie>?) {
 		loadPersistent()
 		val toRemove = HashSet<String>()
 		for ((key, cookie) in cache) {
 			if (cookie.isExpired() || cookie.cookie.matches(url)) {
-				toRemove += key
+				if (predicate == null || predicate.test(cookie.cookie)) {
+					toRemove += key
+				}
 			}
 		}
 		if (toRemove.isNotEmpty()) {

app/src/main/kotlin/org/koitharu/kotatsu/core/os/AppShortcutManager.kt

@@ -1,12 +1,9 @@
 package org.koitharu.kotatsu.core.os
 
-import android.app.ActivityManager
 import android.content.Context
 import android.content.SharedPreferences
 import android.content.pm.ShortcutManager
 import android.os.Build
-import android.util.Size
-import androidx.annotation.RequiresApi
 import androidx.annotation.VisibleForTesting
 import androidx.core.content.pm.ShortcutInfoCompat
 import androidx.core.content.pm.ShortcutManagerCompat
@@ -16,6 +13,7 @@ import androidx.room.InvalidationTracker
 import coil.ImageLoader
 import coil.request.ImageRequest
 import coil.size.Scale
+import coil.size.Size
 import dagger.hilt.android.qualifiers.ApplicationContext
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
@@ -23,15 +21,19 @@ import kotlinx.coroutines.launch
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.db.TABLE_HISTORY
 import org.koitharu.kotatsu.core.parser.MangaDataRepository
+import org.koitharu.kotatsu.core.parser.favicon.faviconUri
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.ui.image.ThumbnailTransformation
 import org.koitharu.kotatsu.core.util.ext.getDrawableOrThrow
 import org.koitharu.kotatsu.core.util.ext.printStackTraceDebug
 import org.koitharu.kotatsu.core.util.ext.processLifecycleScope
+import org.koitharu.kotatsu.core.util.ext.source
 import org.koitharu.kotatsu.history.data.HistoryRepository
 import org.koitharu.kotatsu.parsers.model.Manga
+import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.util.runCatchingCancellable
 import org.koitharu.kotatsu.reader.ui.ReaderActivity
+import org.koitharu.kotatsu.search.ui.MangaListActivity
 import javax.inject.Inject
 import javax.inject.Singleton
 
@@ -44,7 +46,9 @@ class AppShortcutManager @Inject constructor(
 	private val settings: AppSettings,
 ) : InvalidationTracker.Observer(TABLE_HISTORY), SharedPreferences.OnSharedPreferenceChangeListener {
 
-	private val iconSize by lazy { getIconSize(context) }
+	private val iconSize by lazy {
+		Size(ShortcutManagerCompat.getIconMaxWidth(context), ShortcutManagerCompat.getIconMaxHeight(context))
+	}
 	private var shortcutsUpdateJob: Job? = null
 
 	init {
@@ -52,7 +56,7 @@ class AppShortcutManager @Inject constructor(
 	}
 
 	override fun onInvalidated(tables: Set<String>) {
-		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N_MR1 || !settings.isDynamicShortcutsEnabled) {
+		if (!settings.isDynamicShortcutsEnabled) {
 			return
 		}
 		val prevJob = shortcutsUpdateJob
@@ -63,7 +67,7 @@ class AppShortcutManager @Inject constructor(
 	}
 
 	override fun onSharedPreferenceChanged(sharedPreferences: SharedPreferences?, key: String?) {
-		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N_MR1 && key == AppSettings.KEY_SHORTCUTS) {
+		if (key == AppSettings.KEY_SHORTCUTS) {
 			if (settings.isDynamicShortcutsEnabled) {
 				onInvalidated(emptySet())
 			} else {
@@ -72,12 +76,18 @@ class AppShortcutManager @Inject constructor(
 		}
 	}
 
-	suspend fun requestPinShortcut(manga: Manga): Boolean {
+	suspend fun requestPinShortcut(manga: Manga): Boolean = try {
-		return ShortcutManagerCompat.requestPinShortcut(
+		ShortcutManagerCompat.requestPinShortcut(context, buildShortcutInfo(manga), null)
-			context,
+	} catch (e: IllegalStateException) {
-			buildShortcutInfo(manga).build(),
+		e.printStackTraceDebug()
-			null,
+		false
-		)
+	}
+
+	suspend fun requestPinShortcut(source: MangaSource): Boolean = try {
+		ShortcutManagerCompat.requestPinShortcut(context, buildShortcutInfo(source), null)
+	} catch (e: IllegalStateException) {
+		e.printStackTraceDebug()
+		false
 	}
 
 	@VisibleForTesting
@@ -85,49 +95,39 @@ class AppShortcutManager @Inject constructor(
 		return shortcutsUpdateJob?.join() != null
 	}
 
-	fun isDynamicShortcutsAvailable(): Boolean {
-		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N_MR1) {
-			return false
-		}
-		val manager = context.getSystemService(Context.SHORTCUT_SERVICE) as ShortcutManager
-		return manager.maxShortcutCountPerActivity > 0
-	}
-
 	fun notifyMangaOpened(mangaId: Long) {
-		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N_MR1) {
+		ShortcutManagerCompat.reportShortcutUsed(context, mangaId.toString())
-			return
+	}
-		}
+
-		val manager = context.getSystemService(Context.SHORTCUT_SERVICE) as ShortcutManager
+	fun isDynamicShortcutsAvailable(): Boolean {
-		manager.reportShortcutUsed(mangaId.toString())
+		return Build.VERSION.SDK_INT >= Build.VERSION_CODES.N_MR1 &&
+			context.getSystemService(ShortcutManager::class.java).maxShortcutCountPerActivity > 0
 	}
 
-	@RequiresApi(Build.VERSION_CODES.N_MR1)
 	private suspend fun updateShortcutsImpl() = runCatchingCancellable {
-		val manager = context.getSystemService(Context.SHORTCUT_SERVICE) as ShortcutManager
+		val maxShortcuts = ShortcutManagerCompat.getMaxShortcutCountPerActivity(context).coerceAtLeast(5)
-		val shortcuts = historyRepository.getList(0, manager.maxShortcutCountPerActivity)
+		val shortcuts = historyRepository.getList(0, maxShortcuts)
 			.filter { x -> x.title.isNotEmpty() }
-			.map { buildShortcutInfo(it).build().toShortcutInfo() }
+			.map { buildShortcutInfo(it) }
-		manager.dynamicShortcuts = shortcuts
+		ShortcutManagerCompat.setDynamicShortcuts(context, shortcuts)
 	}.onFailure {
 		it.printStackTraceDebug()
 	}
 
-	@RequiresApi(Build.VERSION_CODES.N_MR1)
 	private fun clearShortcuts() {
-		val manager = context.getSystemService(Context.SHORTCUT_SERVICE) as ShortcutManager
 		try {
-			manager.removeAllDynamicShortcuts()
+			ShortcutManagerCompat.removeAllDynamicShortcuts(context)
 		} catch (_: IllegalStateException) {
 		}
 	}
 
-	private suspend fun buildShortcutInfo(manga: Manga): ShortcutInfoCompat.Builder {
+	private suspend fun buildShortcutInfo(manga: Manga): ShortcutInfoCompat {
 		val icon = runCatchingCancellable {
 			coil.execute(
 				ImageRequest.Builder(context)
 					.data(manga.coverUrl)
-					.size(iconSize.width, iconSize.height)
+					.size(iconSize)
-					.tag(manga.source)
+					.source(manga.source)
 					.scale(Scale.FILL)
 					.transformations(ThumbnailTransformation())
 					.build(),
@@ -141,22 +141,34 @@ class AppShortcutManager @Inject constructor(
 			.setShortLabel(manga.title)
 			.setLongLabel(manga.title)
 			.setIcon(icon)
+			.setLongLived(true)
 			.setIntent(
 				ReaderActivity.IntentBuilder(context)
 					.mangaId(manga.id)
 					.build(),
 			)
+			.build()
 	}
 
-	private fun getIconSize(context: Context): Size {
+	private suspend fun buildShortcutInfo(source: MangaSource): ShortcutInfoCompat {
-		return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N_MR1) {
+		val icon = runCatchingCancellable {
-			(context.getSystemService(Context.SHORTCUT_SERVICE) as ShortcutManager).let {
+			coil.execute(
-				Size(it.iconMaxWidth, it.iconMaxHeight)
+				ImageRequest.Builder(context)
-			}
+					.data(source.faviconUri())
-		} else {
+					.size(iconSize)
-			(context.getSystemService(Context.ACTIVITY_SERVICE) as ActivityManager).launcherLargeIconSize.let {
+					.scale(Scale.FIT)
-				Size(it, it)
+					.build(),
-			}
+			).getDrawableOrThrow().toBitmap()
-		}
+		}.fold(
+			onSuccess = { IconCompat.createWithAdaptiveBitmap(it) },
+			onFailure = { IconCompat.createWithResource(context, R.drawable.ic_shortcut_default) },
+		)
+		return ShortcutInfoCompat.Builder(context, source.name)
+			.setShortLabel(source.title)
+			.setLongLabel(source.title)
+			.setIcon(icon)
+			.setLongLived(true)
+			.setIntent(MangaListActivity.newIntent(context, source))
+			.build()
 	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/core/os/NetworkManageIntent.kt

@@ -0,0 +1,15 @@
+package org.koitharu.kotatsu.core.os
+
+import android.content.Intent
+import android.os.Build
+import android.provider.Settings
+
+@Suppress("FunctionName")
+fun NetworkManageIntent(): Intent {
+	val action = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+		Settings.Panel.ACTION_INTERNET_CONNECTIVITY
+	} else {
+		Settings.ACTION_WIRELESS_SETTINGS
+	}
+	return Intent(action)
+}

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

@@ -17,10 +17,12 @@ import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.model.MangaTag
 import org.koitharu.kotatsu.reader.domain.ReaderColorFilter
 import javax.inject.Inject
+import javax.inject.Provider
 
 @Reusable
 class MangaDataRepository @Inject constructor(
 	private val db: MangaDatabase,
+	private val resolverProvider: Provider<MangaLinkResolver>,
 ) {
 
 	suspend fun saveReaderMode(manga: Manga, mode: ReaderMode) {
@@ -63,10 +65,15 @@ class MangaDataRepository @Inject constructor(
 		return db.mangaDao.find(mangaId)?.toManga()
 	}
 
+	suspend fun findMangaByPublicUrl(publicUrl: String): Manga? {
+		return db.mangaDao.findByPublicUrl(publicUrl)?.toManga()
+	}
+
 	suspend fun resolveIntent(intent: MangaIntent): Manga? = when {
 		intent.manga != null -> intent.manga
 		intent.mangaId != 0L -> findMangaById(intent.mangaId)
-		else -> null // TODO resolve uri
+		intent.uri != null -> resolverProvider.get().resolve(intent.uri)
+		else -> null
 	}
 
 	suspend fun storeManga(manga: Manga) {

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

@@ -0,0 +1,119 @@
+package org.koitharu.kotatsu.core.parser
+
+import android.net.Uri
+import dagger.Reusable
+import org.koitharu.kotatsu.core.model.MangaSource
+import org.koitharu.kotatsu.core.util.ext.ifNullOrEmpty
+import org.koitharu.kotatsu.explore.data.MangaSourcesRepository
+import org.koitharu.kotatsu.parsers.exception.NotFoundException
+import org.koitharu.kotatsu.parsers.model.ContentType
+import org.koitharu.kotatsu.parsers.model.Manga
+import org.koitharu.kotatsu.parsers.model.MangaSource
+import org.koitharu.kotatsu.parsers.util.almostEquals
+import org.koitharu.kotatsu.parsers.util.levenshteinDistance
+import org.koitharu.kotatsu.parsers.util.runCatchingCancellable
+import org.koitharu.kotatsu.parsers.util.toRelativeUrl
+import javax.inject.Inject
+
+@Reusable
+class MangaLinkResolver @Inject constructor(
+	private val repositoryFactory: MangaRepository.Factory,
+	private val sourcesRepository: MangaSourcesRepository,
+	private val dataRepository: MangaDataRepository,
+) {
+
+	suspend fun resolve(uri: Uri): Manga {
+		return if (uri.host == "kotatsu.app") {
+			resolveAppLink(uri)
+		} else {
+			resolveExternalLink(uri)
+		} ?: throw NotFoundException("Manga not found", uri.toString())
+	}
+
+	suspend fun resolveAppLink(uri: Uri): Manga? {
+		require(uri.pathSegments.singleOrNull() == "manga") { "Invalid url" }
+		val sourceName = requireNotNull(uri.getQueryParameter("source")) { "Source is not specified" }
+		val source = MangaSource(sourceName)
+		require(source != MangaSource.DUMMY) { "Manga source $sourceName is not supported" }
+		val repo = repositoryFactory.create(source)
+		return repo.findExact(
+			url = uri.getQueryParameter("url"),
+			title = uri.getQueryParameter("name"),
+		)
+	}
+
+	suspend fun resolveExternalLink(uri: Uri): Manga? {
+		dataRepository.findMangaByPublicUrl(uri.toString())?.let {
+			return it
+		}
+		val host = uri.host ?: return null
+		val repo = sourcesRepository.allMangaSources.asSequence()
+			.map { source ->
+				repositoryFactory.create(source) as RemoteMangaRepository
+			}.find { repo ->
+				host in repo.domains
+			} ?: return null
+		return repo.findExact(uri.toString().toRelativeUrl(host), null)
+	}
+
+	private suspend fun MangaRepository.findExact(url: String?, title: String?): Manga? {
+		if (!title.isNullOrEmpty()) {
+			val list = getList(0, title)
+			if (url != null) {
+				list.find { it.url == url }?.let {
+					return it
+				}
+			}
+			list.minByOrNull { it.title.levenshteinDistance(title) }
+				?.takeIf { it.title.almostEquals(title, 0.2f) }
+				?.let { return it }
+		}
+		val seed = getDetailsNoCache(
+			getSeedManga(source, url ?: return null, title),
+		)
+		return runCatchingCancellable {
+			val seedTitle = seed.title.ifEmpty {
+				seed.altTitle
+			}.ifNullOrEmpty {
+				seed.author
+			} ?: return@runCatchingCancellable null
+			val seedList = getList(0, seedTitle)
+			seedList.first { x -> x.url == url }
+		}.getOrThrow()
+	}
+
+	private suspend fun MangaRepository.getDetailsNoCache(manga: Manga): Manga {
+		return if (this is RemoteMangaRepository) {
+			getDetails(manga, withCache = false)
+		} else {
+			getDetails(manga)
+		}
+	}
+
+	private fun getSeedManga(source: MangaSource, url: String, title: String?) = Manga(
+		id = run {
+			var h = 1125899906842597L
+			source.name.forEach { c ->
+				h = 31 * h + c.code
+			}
+			url.forEach { c ->
+				h = 31 * h + c.code
+			}
+			h
+		},
+		title = title.orEmpty(),
+		altTitle = null,
+		url = url,
+		publicUrl = "",
+		rating = 0.0f,
+		isNsfw = source.contentType == ContentType.HENTAI,
+		coverUrl = "",
+		tags = emptySet(),
+		state = null,
+		author = null,
+		largeCoverUrl = null,
+		description = null,
+		chapters = null,
+		source = source,
+	)
+}

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

@@ -17,7 +17,7 @@ import org.koitharu.kotatsu.parsers.MangaLoaderContext
 import org.koitharu.kotatsu.parsers.config.MangaSourceConfig
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import java.lang.ref.WeakReference
-import java.util.*
+import java.util.Locale
 import javax.inject.Inject
 import javax.inject.Singleton
 import kotlin.coroutines.resume
@@ -50,7 +50,7 @@ class MangaLoaderContextImpl @Inject constructor(
 	}
 
 	override fun encodeBase64(data: ByteArray): String {
-		return Base64.encodeToString(data, Base64.NO_PADDING)
+		return Base64.encodeToString(data, Base64.NO_WRAP)
 	}
 
 	override fun decodeBase64(data: String): ByteArray {

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

@@ -3,7 +3,6 @@ package org.koitharu.kotatsu.core.parser
 import org.koitharu.kotatsu.parsers.MangaLoaderContext
 import org.koitharu.kotatsu.parsers.MangaParser
 import org.koitharu.kotatsu.parsers.model.MangaSource
-import org.koitharu.kotatsu.parsers.newParser
 
 fun MangaParser(source: MangaSource, loaderContext: MangaLoaderContext): MangaParser {
 	return if (source == MangaSource.DUMMY) {

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

@@ -2,6 +2,7 @@ package org.koitharu.kotatsu.core.parser
 
 import androidx.annotation.AnyThread
 import org.koitharu.kotatsu.core.cache.ContentCache
+import org.koitharu.kotatsu.core.network.MirrorSwitchInterceptor
 import org.koitharu.kotatsu.local.data.LocalMangaRepository
 import org.koitharu.kotatsu.parsers.MangaLoaderContext
 import org.koitharu.kotatsu.parsers.model.Manga
@@ -36,11 +37,14 @@ interface MangaRepository {
 
 	suspend fun getTags(): Set<MangaTag>
 
+	suspend fun getRelated(seed: Manga): List<Manga>
+
 	@Singleton
 	class Factory @Inject constructor(
 		private val localMangaRepository: LocalMangaRepository,
 		private val loaderContext: MangaLoaderContext,
 		private val contentCache: ContentCache,
+		private val mirrorSwitchInterceptor: MirrorSwitchInterceptor,
 	) {
 
 		private val cache = EnumMap<MangaSource, WeakReference<RemoteMangaRepository>>(MangaSource::class.java)
@@ -53,7 +57,11 @@ interface MangaRepository {
 			cache[source]?.get()?.let { return it }
 			return synchronized(cache) {
 				cache[source]?.get()?.let { return it }
-				val repository = RemoteMangaRepository(MangaParser(source, loaderContext), contentCache)
+				val repository = RemoteMangaRepository(
+					parser = MangaParser(source, loaderContext),
+					cache = contentCache,
+					mirrorSwitchInterceptor = mirrorSwitchInterceptor,
+				)
 				cache[source] = WeakReference(repository)
 				repository
 			}

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

@@ -13,11 +13,13 @@ import okhttp3.Response
 import org.koitharu.kotatsu.BuildConfig
 import org.koitharu.kotatsu.core.cache.ContentCache
 import org.koitharu.kotatsu.core.cache.SafeDeferred
+import org.koitharu.kotatsu.core.network.MirrorSwitchInterceptor
 import org.koitharu.kotatsu.core.prefs.SourceSettings
 import org.koitharu.kotatsu.core.util.ext.processLifecycleScope
 import org.koitharu.kotatsu.parsers.MangaParser
 import org.koitharu.kotatsu.parsers.MangaParserAuthProvider
 import org.koitharu.kotatsu.parsers.config.ConfigKey
+import org.koitharu.kotatsu.parsers.exception.ParseException
 import org.koitharu.kotatsu.parsers.model.Favicons
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaChapter
@@ -31,6 +33,7 @@ import org.koitharu.kotatsu.parsers.util.runCatchingCancellable
 class RemoteMangaRepository(
 	private val parser: MangaParser,
 	private val cache: ContentCache,
+	private val mirrorSwitchInterceptor: MirrorSwitchInterceptor,
 ) : MangaRepository, Interceptor {
 
 	override val source: MangaSource
@@ -51,7 +54,10 @@ class RemoteMangaRepository(
 			getConfig()[parser.configKeyDomain] = value
 		}
 
-	val headers: Headers?
+	val domains: Array<out String>
+		get() = parser.configKeyDomain.presetValues
+
+	val headers: Headers
 		get() = parser.headers
 
 	override fun intercept(chain: Interceptor.Chain): Response {
@@ -63,36 +69,69 @@ class RemoteMangaRepository(
 	}
 
 	override suspend fun getList(offset: Int, query: String): List<Manga> {
-		return parser.getList(offset, query)
+		return mirrorSwitchInterceptor.withMirrorSwitching {
+			parser.getList(offset, query)
+		}
 	}
 
 	override suspend fun getList(offset: Int, tags: Set<MangaTag>?, sortOrder: SortOrder?): List<Manga> {
-		return parser.getList(offset, tags, sortOrder)
+		return mirrorSwitchInterceptor.withMirrorSwitching {
+			parser.getList(offset, tags, sortOrder)
+		}
 	}
 
-	override suspend fun getDetails(manga: Manga): Manga {
+	override suspend fun getDetails(manga: Manga): Manga = getDetails(manga, withCache = true)
-		cache.getDetails(source, manga.url)?.let { return it }
-		val details = asyncSafe {
-			parser.getDetails(manga)
-		}
-		cache.putDetails(source, manga.url, details)
-		return details.await()
-	}
 
 	override suspend fun getPages(chapter: MangaChapter): List<MangaPage> {
 		cache.getPages(source, chapter.url)?.let { return it }
 		val pages = asyncSafe {
-			parser.getPages(chapter).distinctById()
+			mirrorSwitchInterceptor.withMirrorSwitching {
+				parser.getPages(chapter).distinctById()
+			}
 		}
 		cache.putPages(source, chapter.url, pages)
 		return pages.await()
 	}
 
-	override suspend fun getPageUrl(page: MangaPage): String = parser.getPageUrl(page)
+	override suspend fun getPageUrl(page: MangaPage): String = mirrorSwitchInterceptor.withMirrorSwitching {
+		parser.getPageUrl(page)
+	}
 
-	override suspend fun getTags(): Set<MangaTag> = parser.getTags()
+	override suspend fun getTags(): Set<MangaTag> = mirrorSwitchInterceptor.withMirrorSwitching {
+		parser.getTags()
+	}
 
-	suspend fun getFavicons(): Favicons = parser.getFavicons()
+	suspend fun getFavicons(): Favicons = mirrorSwitchInterceptor.withMirrorSwitching {
+		parser.getFavicons()
+	}
+
+	override suspend fun getRelated(seed: Manga): List<Manga> {
+		cache.getRelatedManga(source, seed.url)?.let { return it }
+		val related = asyncSafe {
+			parser.getRelatedManga(seed).filterNot { it.id == seed.id }
+		}
+		cache.putRelatedManga(source, seed.url, related)
+		return related.await()
+	}
+
+	suspend fun getDetails(manga: Manga, withCache: Boolean): Manga {
+		if (!withCache) {
+			return parser.getDetails(manga)
+		}
+		cache.getDetails(source, manga.url)?.let { return it }
+		val details = asyncSafe {
+			mirrorSwitchInterceptor.withMirrorSwitching {
+				parser.getDetails(manga)
+			}
+		}
+		cache.putDetails(source, manga.url, details)
+		return details.await()
+	}
+
+	suspend fun find(manga: Manga): Manga? {
+		val list = getList(0, manga.title)
+		return list.find { x -> x.id == manga.id }
+	}
 
 	fun getAuthProvider(): MangaParserAuthProvider? = parser as? MangaParserAuthProvider
 
@@ -133,4 +172,33 @@ class RemoteMangaRepository(
 		}
 		return result
 	}
+
+	private suspend fun <R> MirrorSwitchInterceptor.withMirrorSwitching(block: suspend () -> R): R {
+		if (!isEnabled) {
+			return block()
+		}
+		val initialMirror = domain
+		val result = runCatchingCancellable {
+			block()
+		}
+		if (result.isValidResult()) {
+			return result.getOrThrow()
+		}
+		return if (trySwitchMirror(this@RemoteMangaRepository)) {
+			val newResult = runCatchingCancellable {
+				block()
+			}
+			if (newResult.isValidResult()) {
+				return newResult.getOrThrow()
+			} else {
+				rollback(this@RemoteMangaRepository, initialMirror)
+				return result.getOrThrow()
+			}
+		} else {
+			result.getOrThrow()
+		}
+	}
+
+	private fun Result<*>.isValidResult() = exceptionOrNull() !is ParseException
+		&& (getOrNull() as? Collection<*>)?.isEmpty() != true
 }

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

@@ -14,6 +14,7 @@ import coil.network.HttpException
 import coil.request.Options
 import coil.size.Size
 import coil.size.pxOrElse
+import kotlinx.coroutines.ensureActive
 import okhttp3.OkHttpClient
 import okhttp3.Request
 import okhttp3.Response
@@ -21,14 +22,17 @@ import okhttp3.ResponseBody
 import okhttp3.internal.closeQuietly
 import okio.Closeable
 import okio.buffer
+import org.koitharu.kotatsu.core.exceptions.CloudFlareProtectedException
 import org.koitharu.kotatsu.core.model.MangaSource
 import org.koitharu.kotatsu.core.parser.MangaRepository
 import org.koitharu.kotatsu.core.parser.RemoteMangaRepository
+import org.koitharu.kotatsu.core.util.ext.writeAllCancellable
 import org.koitharu.kotatsu.local.data.CacheDir
 import org.koitharu.kotatsu.local.data.util.withExtraCloseable
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.util.await
 import java.net.HttpURLConnection
+import kotlin.coroutines.coroutineContext
 
 private const val FALLBACK_SIZE = 9999 // largest icon
 
@@ -49,22 +53,35 @@ class FaviconFetcher(
 	override suspend fun fetch(): FetchResult {
 		getCached(options)?.let { return it }
 		val repo = mangaRepositoryFactory.create(mangaSource) as RemoteMangaRepository
-		val favicons = repo.getFavicons()
 		val sizePx = maxOf(
 			options.size.width.pxOrElse { FALLBACK_SIZE },
 			options.size.height.pxOrElse { FALLBACK_SIZE },
 		)
-		val icon = checkNotNull(favicons.find(sizePx)) { "No favicons found" }
+		var favicons = repo.getFavicons()
-		val response = loadIcon(icon.url, mangaSource)
+		var lastError: Exception? = null
-		val responseBody = response.requireBody()
+		while (favicons.isNotEmpty()) {
-		val source = writeToDiskCache(responseBody)?.toImageSource()?.also {
+			coroutineContext.ensureActive()
-			response.closeQuietly()
+			val icon = favicons.find(sizePx) ?: throwNSEE(lastError)
-		} ?: responseBody.toImageSource(response)
+			val response = try {
-		return SourceResult(
+				loadIcon(icon.url, mangaSource)
-			source = source,
+			} catch (e: CloudFlareProtectedException) {
-			mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(icon.type),
+				throw e
-			dataSource = response.toDataSource(),
+			} catch (e: HttpException) {
-		)
+				lastError = e
+				favicons -= icon
+				continue
+			}
+			val responseBody = response.requireBody()
+			val source = writeToDiskCache(responseBody)?.toImageSource()?.also {
+				response.closeQuietly()
+			} ?: responseBody.toImageSource(response)
+			return SourceResult(
+				source = source,
+				mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(icon.type),
+				dataSource = response.toDataSource(),
+			)
+		}
+		throwNSEE(lastError)
 	}
 
 	private suspend fun loadIcon(url: String, source: MangaSource): Response {
@@ -94,14 +111,14 @@ class FaviconFetcher(
 		)
 	}
 
-	private fun writeToDiskCache(body: ResponseBody): DiskCache.Snapshot? {
+	private suspend fun writeToDiskCache(body: ResponseBody): DiskCache.Snapshot? {
 		if (!options.diskCachePolicy.writeEnabled || body.contentLength() == 0L) {
 			return null
 		}
 		val editor = diskCache.value?.openEditor(diskCacheKey) ?: return null
 		try {
 			fileSystem.write(editor.data) {
-				body.source().readAll(this)
+				writeAllCancellable(body.source())
 			}
 			return editor.commitAndOpenSnapshot()
 		} catch (e: Throwable) {
@@ -143,6 +160,14 @@ class FaviconFetcher(
 		append(height.toString())
 	}
 
+	private fun throwNSEE(lastError: Exception?): Nothing {
+		if (lastError != null) {
+			throw lastError
+		} else {
+			throw NoSuchElementException("No favicons found")
+		}
+	}
+
 	class Factory(
 		context: Context,
 		private val okHttpClient: OkHttpClient,

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

@@ -8,30 +8,27 @@ import android.os.Build
 import android.provider.Settings
 import androidx.annotation.FloatRange
 import androidx.appcompat.app.AppCompatDelegate
-import androidx.collection.arraySetOf
+import androidx.collection.ArraySet
 import androidx.core.content.edit
 import androidx.core.os.LocaleListCompat
 import androidx.preference.PreferenceManager
 import dagger.hilt.android.qualifiers.ApplicationContext
-import org.koitharu.kotatsu.BuildConfig
+import org.json.JSONArray
 import org.koitharu.kotatsu.core.model.ZoomMode
 import org.koitharu.kotatsu.core.network.DoHProvider
 import org.koitharu.kotatsu.core.util.ext.connectivityManager
-import org.koitharu.kotatsu.core.util.ext.filterToSet
 import org.koitharu.kotatsu.core.util.ext.getEnumValue
 import org.koitharu.kotatsu.core.util.ext.observe
 import org.koitharu.kotatsu.core.util.ext.putEnumValue
 import org.koitharu.kotatsu.core.util.ext.takeIfReadable
 import org.koitharu.kotatsu.core.util.ext.toUriOrNull
-import org.koitharu.kotatsu.parsers.model.MangaSource
+import org.koitharu.kotatsu.history.domain.model.HistoryOrder
 import org.koitharu.kotatsu.parsers.model.SortOrder
+import org.koitharu.kotatsu.parsers.util.find
 import org.koitharu.kotatsu.parsers.util.mapNotNullToSet
 import org.koitharu.kotatsu.parsers.util.mapToSet
-import org.koitharu.kotatsu.shelf.domain.model.ShelfSection
 import java.io.File
 import java.net.Proxy
-import java.util.Collections
-import java.util.EnumSet
 import java.util.Locale
 import javax.inject.Inject
 import javax.inject.Singleton
@@ -42,38 +39,13 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 	private val prefs = PreferenceManager.getDefaultSharedPreferences(context)
 	private val connectivityManager = context.connectivityManager
 
-	private val remoteSources = EnumSet.allOf(MangaSource::class.java).apply {
-		remove(MangaSource.LOCAL)
-		if (!BuildConfig.DEBUG) {
-			remove(MangaSource.DUMMY)
-		}
-	}
-
-	val remoteMangaSources: Set<MangaSource>
-		get() = Collections.unmodifiableSet(remoteSources)
-
-	var shelfSections: List<ShelfSection>
-		get() {
-			val raw = prefs.getString(KEY_SHELF_SECTIONS, null)
-			val values = enumValues<ShelfSection>()
-			if (raw.isNullOrEmpty()) {
-				return values.toList()
-			}
-			return raw.split('|')
-				.mapNotNull { values.getOrNull(it.toIntOrNull() ?: -1) }
-				.distinct()
-		}
-		set(value) {
-			val raw = value.joinToString("|") { it.ordinal.toString() }
-			prefs.edit { putString(KEY_SHELF_SECTIONS, raw) }
-		}
-
 	var listMode: ListMode
 		get() = prefs.getEnumValue(KEY_LIST_MODE, ListMode.GRID)
 		set(value) = prefs.edit { putEnumValue(KEY_LIST_MODE, value) }
 
 	val theme: Int
-		get() = prefs.getString(KEY_THEME, null)?.toIntOrNull() ?: AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM
+		get() = prefs.getString(KEY_THEME, null)?.toIntOrNull()
+			?: AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM
 
 	val colorScheme: ColorScheme
 		get() = prefs.getEnumValue(KEY_COLOR_THEME, ColorScheme.default)
@@ -81,10 +53,29 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 	val isAmoledTheme: Boolean
 		get() = prefs.getBoolean(KEY_THEME_AMOLED, false)
 
+	var mainNavItems: List<NavItem>
+		get() {
+			val raw = prefs.getString(KEY_NAV_MAIN, null)?.split(',')
+			return if (raw.isNullOrEmpty()) {
+				listOf(NavItem.HISTORY, NavItem.FAVORITES, NavItem.EXPLORE, NavItem.FEED)
+			} else {
+				raw.mapNotNull { x -> NavItem.entries.find(x) }.ifEmpty { listOf(NavItem.EXPLORE) }
+			}
+		}
+		set(value) {
+			prefs.edit {
+				putString(KEY_NAV_MAIN, value.joinToString(",") { it.name })
+			}
+		}
+
 	var gridSize: Int
 		get() = prefs.getInt(KEY_GRID_SIZE, 100)
 		set(value) = prefs.edit { putInt(KEY_GRID_SIZE, value) }
 
+	var isNsfwContentDisabled: Boolean
+		get() = prefs.getBoolean(KEY_DISABLE_NSFW, false)
+		set(value) = prefs.edit { putBoolean(KEY_DISABLE_NSFW, value) }
+
 	var appLocales: LocaleListCompat
 		get() {
 			val raw = prefs.getString(KEY_APP_LOCALE, null)
@@ -99,6 +90,9 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 	val readerPageSwitch: Set<String>
 		get() = prefs.getStringSet(KEY_READER_SWITCHERS, null) ?: setOf(PAGE_SWITCH_TAPS)
 
+	val isReaderZoomButtonsEnabled: Boolean
+		get() = prefs.getBoolean(KEY_READER_ZOOM_BUTTONS, false)
+
 	val isReaderTapsAdaptive: Boolean
 		get() = !prefs.getBoolean(KEY_READER_TAPS_LTR, false)
 
@@ -113,6 +107,9 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 	val isTrackerEnabled: Boolean
 		get() = prefs.getBoolean(KEY_TRACKER_ENABLED, true)
 
+	val isTrackerWifiOnly: Boolean
+		get() = prefs.getBoolean(KEY_TRACKER_WIFI_ONLY, false)
+
 	val isTrackerNotificationsEnabled: Boolean
 		get() = prefs.getBoolean(KEY_TRACKER_NOTIFICATIONS, true)
 
@@ -127,8 +124,11 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 	val notificationLight: Boolean
 		get() = prefs.getBoolean(KEY_NOTIFICATIONS_LIGHT, true)
 
-	val readerAnimation: Boolean
+	val readerAnimation: ReaderAnimation
-		get() = prefs.getBoolean(KEY_READER_ANIMATION, false)
+		get() = prefs.getEnumValue(KEY_READER_ANIMATION, ReaderAnimation.DEFAULT)
+
+	val readerBackground: ReaderBackground
+		get() = prefs.getEnumValue(KEY_READER_BACKGROUND, ReaderBackground.DEFAULT)
 
 	val defaultReaderMode: ReaderMode
 		get() = prefs.getEnumValue(KEY_READER_MODE, ReaderMode.STANDARD)
@@ -158,11 +158,15 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		get() = prefs.getEnumValue(KEY_ZOOM_MODE, ZoomMode.FIT_CENTER)
 
 	val trackSources: Set<String>
-		get() = prefs.getStringSet(KEY_TRACK_SOURCES, null) ?: arraySetOf(TRACK_FAVOURITES, TRACK_HISTORY)
+		get() = prefs.getStringSet(KEY_TRACK_SOURCES, null) ?: setOf(TRACK_FAVOURITES)
 
 	var appPassword: String?
 		get() = prefs.getString(KEY_APP_PASSWORD, null)
-		set(value) = prefs.edit { if (value != null) putString(KEY_APP_PASSWORD, value) else remove(KEY_APP_PASSWORD) }
+		set(value) = prefs.edit {
+			if (value != null) putString(KEY_APP_PASSWORD, value) else remove(
+				KEY_APP_PASSWORD,
+			)
+		}
 
 	val isLoggingEnabled: Boolean
 		get() = prefs.getBoolean(KEY_LOGGING_ENABLED, false)
@@ -188,41 +192,11 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 			if (isBackgroundNetworkRestricted()) {
 				return false
 			}
-			val policy = NetworkPolicy.from(prefs.getString(KEY_PREFETCH_CONTENT, null), NetworkPolicy.NEVER)
+			val policy =
+				NetworkPolicy.from(prefs.getString(KEY_PREFETCH_CONTENT, null), NetworkPolicy.NEVER)
 			return policy.isNetworkAllowed(connectivityManager)
 		}
 
-	var sourcesOrder: List<String>
-		get() = prefs.getString(KEY_SOURCES_ORDER, null)
-			?.split('|')
-			.orEmpty()
-		set(value) = prefs.edit {
-			putString(KEY_SOURCES_ORDER, value.joinToString("|"))
-		}
-
-	var hiddenSources: Set<String>
-		get() = prefs.getStringSet(KEY_SOURCES_HIDDEN, null)?.filterToSet { name ->
-			remoteSources.any { it.name == name }
-		}.orEmpty()
-		set(value) = prefs.edit { putStringSet(KEY_SOURCES_HIDDEN, value) }
-
-	val isSourcesSelected: Boolean
-		get() = KEY_SOURCES_HIDDEN in prefs
-
-	val newSources: Set<MangaSource>
-		get() {
-			val known = sourcesOrder.toSet()
-			val hidden = hiddenSources
-			return remoteMangaSources
-				.filterNotTo(EnumSet.noneOf(MangaSource::class.java)) { x ->
-					x.name in known || x.name in hidden
-				}
-		}
-
-	fun markKnownSources(sources: Collection<MangaSource>) {
-		sourcesOrder = (sourcesOrder + sources.map { it.name }).distinct()
-	}
-
 	var isSourcesGridMode: Boolean
 		get() = prefs.getBoolean(KEY_SOURCES_GRID, false)
 		set(value) = prefs.edit { putBoolean(KEY_SOURCES_GRID, value) }
@@ -272,11 +246,14 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		get() = prefs.getBoolean(KEY_SUGGESTIONS, false)
 		set(value) = prefs.edit { putBoolean(KEY_SUGGESTIONS, value) }
 
+	val isSuggestionsWiFiOnly: Boolean
+		get() = prefs.getBoolean(KEY_SUGGESTIONS_WIFI_ONLY, false)
+
 	val isSuggestionsExcludeNsfw: Boolean
 		get() = prefs.getBoolean(KEY_SUGGESTIONS_EXCLUDE_NSFW, false)
 
 	val isSuggestionsNotificationAvailable: Boolean
-		get() = prefs.getBoolean(KEY_SUGGESTIONS_NOTIFICATIONS, true)
+		get() = prefs.getBoolean(KEY_SUGGESTIONS_NOTIFICATIONS, false)
 
 	val suggestionsTagsBlacklist: Set<String>
 		get() {
@@ -293,6 +270,9 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 	val isReaderSliderEnabled: Boolean
 		get() = prefs.getBoolean(KEY_READER_SLIDER, true)
 
+	val isReaderKeepScreenOn: Boolean
+		get() = prefs.getBoolean(KEY_READER_SCREEN_ON, true)
+
 	val isImagesProxyEnabled: Boolean
 		get() = prefs.getBoolean(KEY_IMAGES_PROXY, false)
 
@@ -324,37 +304,38 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		get() = prefs.getEnumValue(KEY_LOCAL_LIST_ORDER, SortOrder.NEWEST)
 		set(value) = prefs.edit { putEnumValue(KEY_LOCAL_LIST_ORDER, value) }
 
+	var historySortOrder: HistoryOrder
+		get() = prefs.getEnumValue(KEY_HISTORY_ORDER, HistoryOrder.UPDATED)
+		set(value) = prefs.edit { putEnumValue(KEY_HISTORY_ORDER, value) }
+
+	val isRelatedMangaEnabled: Boolean
+		get() = prefs.getBoolean(KEY_RELATED_MANGA, true)
+
 	val isWebtoonZoomEnable: Boolean
 		get() = prefs.getBoolean(KEY_WEBTOON_ZOOM, true)
 
 	@get:FloatRange(from = 0.0, to = 1.0)
 	var readerAutoscrollSpeed: Float
 		get() = prefs.getFloat(KEY_READER_AUTOSCROLL_SPEED, 0f)
-		set(@FloatRange(from = 0.0, to = 1.0) value) = prefs.edit { putFloat(KEY_READER_AUTOSCROLL_SPEED, value) }
+		set(@FloatRange(from = 0.0, to = 1.0) value) = prefs.edit {
+			putFloat(
+				KEY_READER_AUTOSCROLL_SPEED,
+				value,
+			)
+		}
 
 	val isPagesPreloadEnabled: Boolean
 		get() {
 			if (isBackgroundNetworkRestricted()) {
 				return false
 			}
-			val policy = NetworkPolicy.from(prefs.getString(KEY_PAGES_PRELOAD, null), NetworkPolicy.NON_METERED)
+			val policy = NetworkPolicy.from(
+				prefs.getString(KEY_PAGES_PRELOAD, null),
+				NetworkPolicy.NON_METERED,
+			)
 			return policy.isNetworkAllowed(connectivityManager)
 		}
 
-	fun getMangaSources(includeHidden: Boolean): List<MangaSource> {
-		val list = remoteSources.toMutableList()
-		val order = sourcesOrder
-		list.sortBy { x ->
-			val e = order.indexOf(x.name)
-			if (e == -1) order.size + x.ordinal else e
-		}
-		if (!includeHidden) {
-			val hidden = hiddenSources
-			list.removeAll { x -> x.name in hidden }
-		}
-		return list
-	}
-
 	fun isTipEnabled(tip: String): Boolean {
 		return prefs.getStringSet(KEY_TIPS_CLOSED, emptySet())?.contains(tip) != true
 	}
@@ -377,6 +358,23 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 
 	fun observe() = prefs.observe()
 
+	fun getAllValues(): Map<String, *> = prefs.all
+
+	fun upsertAll(m: Map<String, *>) {
+		prefs.edit {
+			m.forEach { e ->
+				when (val v = e.value) {
+					is Boolean -> putBoolean(e.key, v)
+					is Int -> putInt(e.key, v)
+					is Long -> putLong(e.key, v)
+					is Float -> putFloat(e.key, v)
+					is String -> putString(e.key, v)
+					is JSONArray -> putStringSet(e.key, v.toStringSet())
+				}
+			}
+		}
+	}
+
 	private fun isBackgroundNetworkRestricted(): Boolean {
 		return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 			connectivityManager.restrictBackgroundStatus == ConnectivityManager.RESTRICT_BACKGROUND_STATUS_ENABLED
@@ -385,6 +383,15 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		}
 	}
 
+	private fun JSONArray.toStringSet(): Set<String> {
+		val len = length()
+		val result = ArraySet<String>(len)
+		for (i in 0 until len) {
+			result.add(getString(i))
+		}
+		return result
+	}
+
 	companion object {
 
 		const val PAGE_SWITCH_TAPS = "taps"
@@ -397,8 +404,6 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		const val KEY_THEME = "theme"
 		const val KEY_COLOR_THEME = "color_theme"
 		const val KEY_THEME_AMOLED = "amoled_theme"
-		const val KEY_SOURCES_ORDER = "sources_order_2"
-		const val KEY_SOURCES_HIDDEN = "sources_hidden"
 		const val KEY_TRAFFIC_WARNING = "traffic_warning"
 		const val KEY_PAGES_CACHE_CLEAR = "pages_cache_clear"
 		const val KEY_HTTP_CACHE_CLEAR = "http_cache_clear"
@@ -410,7 +415,9 @@ 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_SWITCHERS = "reader_switchers"
+		const val KEY_READER_ZOOM_BUTTONS = "reader_zoom_buttons"
 		const val KEY_TRACKER_ENABLED = "tracker_enabled"
+		const val KEY_TRACKER_WIFI_ONLY = "tracker_wifi"
 		const val KEY_TRACK_SOURCES = "track_sources"
 		const val KEY_TRACK_CATEGORIES = "track_categories"
 		const val KEY_TRACK_WARNING = "track_warning"
@@ -420,7 +427,7 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		const val KEY_NOTIFICATIONS_VIBRATE = "notifications_vibrate"
 		const val KEY_NOTIFICATIONS_LIGHT = "notifications_light"
 		const val KEY_NOTIFICATIONS_INFO = "tracker_notifications_info"
-		const val KEY_READER_ANIMATION = "reader_animation"
+		const val KEY_READER_ANIMATION = "reader_animation2"
 		const val KEY_READER_MODE = "reader_mode"
 		const val KEY_READER_MODE_DETECT = "reader_mode_detect"
 		const val KEY_APP_PASSWORD = "app_password"
@@ -438,6 +445,7 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		const val KEY_SCREENSHOTS_POLICY = "screenshots_policy"
 		const val KEY_PAGES_PRELOAD = "pages_preload"
 		const val KEY_SUGGESTIONS = "suggestions"
+		const val KEY_SUGGESTIONS_WIFI_ONLY = "suggestions_wifi"
 		const val KEY_SUGGESTIONS_EXCLUDE_NSFW = "suggestions_exclude_nsfw"
 		const val KEY_SUGGESTIONS_EXCLUDE_TAGS = "suggestions_exclude_tags"
 		const val KEY_SUGGESTIONS_NOTIFICATIONS = "suggestions_notifications"
@@ -454,11 +462,13 @@ 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_SLIDER = "reader_slider"
+		const val KEY_READER_BACKGROUND = "reader_background"
+		const val KEY_READER_SCREEN_ON = "reader_screen_on"
 		const val KEY_SHORTCUTS = "dynamic_shortcuts"
 		const val KEY_READER_TAPS_LTR = "reader_taps_ltr"
 		const val KEY_LOCAL_LIST_ORDER = "local_order"
+		const val KEY_HISTORY_ORDER = "history_order"
 		const val KEY_WEBTOON_ZOOM = "webtoon_zoom"
-		const val KEY_SHELF_SECTIONS = "shelf_sections_2"
 		const val KEY_PREFETCH_CONTENT = "prefetch_content"
 		const val KEY_APP_LOCALE = "app_locale"
 		const val KEY_LOGGING_ENABLED = "logging"
@@ -478,6 +488,9 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		const val KEY_PROXY_PASSWORD = "proxy_password"
 		const val KEY_IMAGES_PROXY = "images_proxy"
 		const val KEY_LOCAL_MANGA_DIRS = "local_manga_dirs"
+		const val KEY_DISABLE_NSFW = "no_nsfw"
+		const val KEY_RELATED_MANGA = "related_manga"
+		const val KEY_NAV_MAIN = "nav_main"
 
 		// About
 		const val KEY_APP_UPDATE = "app_update"

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

@@ -1,15 +1,38 @@
 package org.koitharu.kotatsu.core.prefs
 
+import android.appwidget.AppWidgetProvider
 import android.content.Context
+import android.os.Build
 import androidx.core.content.edit
 
 private const val CATEGORY_ID = "cat_id"
+private const val BACKGROUND = "bg"
 
-class AppWidgetConfig(context: Context, val widgetId: Int) {
+class AppWidgetConfig(
+	context: Context,
+	cls: Class<out AppWidgetProvider>,
+	val widgetId: Int,
+) {
 
-	private val prefs = context.getSharedPreferences("appwidget_$widgetId", Context.MODE_PRIVATE)
+	private val prefs = context.getSharedPreferences("appwidget_${cls.simpleName}_$widgetId", Context.MODE_PRIVATE)
 
 	var categoryId: Long
 		get() = prefs.getLong(CATEGORY_ID, 0L)
 		set(value) = prefs.edit { putLong(CATEGORY_ID, value) }
+
+	var hasBackground: Boolean
+		get() = prefs.getBoolean(BACKGROUND, Build.VERSION.SDK_INT >= Build.VERSION_CODES.S)
+		set(value) = prefs.edit { putBoolean(BACKGROUND, value) }
+
+	fun clear() {
+		prefs.edit { clear() }
+	}
+
+	fun copyFrom(other: AppWidgetConfig) {
+		prefs.edit {
+			clear()
+			putLong(CATEGORY_ID, other.categoryId)
+			putBoolean(BACKGROUND, other.hasBackground)
+		}
+	}
 }

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

@@ -4,6 +4,7 @@ import androidx.annotation.StringRes
 import androidx.annotation.StyleRes
 import com.google.android.material.color.DynamicColors
 import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.parsers.util.find
 
 enum class ColorScheme(
 	@StyleRes val styleResId: Int,
@@ -31,7 +32,7 @@ enum class ColorScheme(
 			}
 
 		fun getAvailableList(): List<ColorScheme> {
-			val list = enumValues<ColorScheme>().toMutableList()
+			val list = ColorScheme.entries.toMutableList()
 			if (!DynamicColors.isDynamicColorAvailable()) {
 				list.remove(MONET)
 			}
@@ -39,7 +40,7 @@ enum class ColorScheme(
 		}
 
 		fun safeValueOf(name: String): ColorScheme? {
-			return enumValues<ColorScheme>().find { it.name == name }
+			return ColorScheme.entries.find(name)
 		}
 	}
 }

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

@@ -0,0 +1,33 @@
+package org.koitharu.kotatsu.core.prefs
+
+import androidx.annotation.DrawableRes
+import androidx.annotation.IdRes
+import androidx.annotation.StringRes
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.list.ui.model.ListModel
+
+enum class NavItem(
+	@IdRes val id: Int,
+	@StringRes val title: Int,
+	@DrawableRes val icon: Int,
+) : ListModel {
+
+	HISTORY(R.id.nav_history, R.string.history, R.drawable.ic_history_selector),
+	FAVORITES(R.id.nav_favorites, R.string.favourites, R.drawable.ic_favourites_selector),
+	LOCAL(R.id.nav_local, R.string.on_device, R.drawable.ic_storage_selector),
+	EXPLORE(R.id.nav_explore, R.string.explore, R.drawable.ic_explore_selector),
+	SUGGESTIONS(R.id.nav_suggestions, R.string.suggestions, R.drawable.ic_suggestion_selector),
+	FEED(R.id.nav_feed, R.string.feed, R.drawable.ic_feed_selector),
+	BOOKMARKS(R.id.nav_bookmarks, R.string.bookmarks, R.drawable.ic_bookmark_selector),
+	;
+
+	override fun areItemsTheSame(other: ListModel): Boolean {
+		return other is NavItem && ordinal == other.ordinal
+	}
+
+	fun isAvailable(settings: AppSettings): Boolean = when (this) {
+		SUGGESTIONS -> settings.isSuggestionsEnabled
+		FEED -> settings.isTrackerEnabled
+		else -> true
+	}
+}

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

@@ -20,7 +20,7 @@ enum class NetworkPolicy(
 
 		fun from(key: String?, default: NetworkPolicy): NetworkPolicy {
 			val intKey = key?.toIntOrNull() ?: return default
-			return enumValues<NetworkPolicy>().find { it.key == intKey } ?: default
+			return NetworkPolicy.entries.find { it.key == intKey } ?: default
 		}
 	}
 }

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

@@ -0,0 +1,7 @@
+package org.koitharu.kotatsu.core.prefs
+
+enum class ReaderAnimation {
+
+	// Do not rename this
+	NONE, DEFAULT, ADVANCED;
+}

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

@@ -0,0 +1,25 @@
+package org.koitharu.kotatsu.core.prefs
+
+import android.content.Context
+import android.view.ContextThemeWrapper
+import androidx.core.content.ContextCompat
+import androidx.core.graphics.drawable.toDrawable
+import org.koitharu.kotatsu.core.util.ext.getThemeDrawable
+import com.google.android.material.R as materialR
+
+enum class ReaderBackground {
+
+	DEFAULT, LIGHT, DARK, WHITE, BLACK;
+
+	fun resolve(context: Context) = when (this) {
+		DEFAULT -> context.getThemeDrawable(android.R.attr.windowBackground)
+		LIGHT -> ContextThemeWrapper(context, materialR.style.ThemeOverlay_Material3_Light)
+			.getThemeDrawable(android.R.attr.windowBackground)
+
+		DARK -> ContextThemeWrapper(context, materialR.style.ThemeOverlay_Material3_Dark)
+			.getThemeDrawable(android.R.attr.windowBackground)
+
+		WHITE -> ContextCompat.getColor(context, android.R.color.white).toDrawable()
+		BLACK -> ContextCompat.getColor(context, android.R.color.black).toDrawable()
+	}
+}

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

@@ -3,11 +3,11 @@ package org.koitharu.kotatsu.core.prefs
 enum class ReaderMode(val id: Int) {
 
 	STANDARD(1),
-	WEBTOON(2),
+	REVERSED(3),
-	REVERSED(3);
+	WEBTOON(2);
 
 	companion object {
 
-		fun valueOf(id: Int) = values().firstOrNull { it.id == id }
+		fun valueOf(id: Int) = entries.firstOrNull { it.id == id }
 	}
-}
+}

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

@@ -97,7 +97,6 @@ abstract class BaseActivity<B : ViewBinding> :
 	}
 
 	override fun onOptionsItemSelected(item: MenuItem) = if (item.itemId == android.R.id.home) {
-		@Suppress("DEPRECATION")
 		onBackPressed()
 		true
 	} else super.onOptionsItemSelected(item)

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

@@ -0,0 +1,51 @@
+package org.koitharu.kotatsu.core.ui
+
+import android.appwidget.AppWidgetManager
+import android.appwidget.AppWidgetProvider
+import android.content.Context
+import android.widget.RemoteViews
+import androidx.annotation.CallSuper
+import org.koitharu.kotatsu.core.prefs.AppWidgetConfig
+
+abstract class BaseAppWidgetProvider : AppWidgetProvider() {
+
+	@CallSuper
+	override fun onUpdate(
+		context: Context,
+		appWidgetManager: AppWidgetManager,
+		appWidgetIds: IntArray
+	) {
+		appWidgetIds.forEach { id ->
+			val config = AppWidgetConfig(context, javaClass, id)
+			val views = onUpdateWidget(context, config)
+			appWidgetManager.updateAppWidget(id, views)
+		}
+	}
+
+	override fun onDeleted(context: Context, appWidgetIds: IntArray) {
+		super.onDeleted(context, appWidgetIds)
+		for (id in appWidgetIds) {
+			AppWidgetConfig(context, javaClass, id).clear()
+		}
+	}
+
+	override fun onRestored(context: Context, oldWidgetIds: IntArray, newWidgetIds: IntArray) {
+		super.onRestored(context, oldWidgetIds, newWidgetIds)
+		if (oldWidgetIds.size != newWidgetIds.size) {
+			return
+		}
+		for (i in oldWidgetIds.indices) {
+			val oldId = oldWidgetIds[i]
+			val newId = newWidgetIds[i]
+			val oldConfig = AppWidgetConfig(context, javaClass, oldId)
+			val newConfig = AppWidgetConfig(context, javaClass, newId)
+			newConfig.copyFrom(oldConfig)
+			oldConfig.clear()
+		}
+	}
+
+	protected abstract fun onUpdateWidget(
+		context: Context,
+		config: AppWidgetConfig,
+	): RemoteViews
+}