Update dependencies

.idea/compiler.xml

@@ -1,8 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="CompilerConfiguration">
-    <bytecodeTargetLevel>
+    <bytecodeTargetLevel target="11" />
-      <module name="Kotatsu.app" target="1.8" />
-    </bytecodeTargetLevel>
   </component>
 </project>

.idea/dictionaries/admin.xml

@@ -3,6 +3,7 @@
     <words>
       <w>chucker</w>
       <w>desu</w>
+      <w>failsafe</w>
       <w>koin</w>
       <w>kotatsu</w>
       <w>manga</w>

.idea/misc.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="false" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">

README.md

@@ -8,7 +8,7 @@ Kotatsu is a free and open source manga reader for Android.
 
 Latest release: [get here](https://github.com/nv95/Kotatsu/releases/latest)
 
-Legacy build (Android 4.1+): [available here](https://github.com/nv95/Kotatsu/releases/tag/v0.3-legacy)
+Legacy build (Android 4.1+): [available here](https://github.com/nv95/Kotatsu/releases/tag/v0.4-legacy)
 
 ### Main Features
 
@@ -21,6 +21,8 @@ Legacy build (Android 4.1+): [available here](https://github.com/nv95/Kotatsu/re
 * Reading third-party comics from CBZ
 * Standard and Webtoon-optimized reader
 * Notifications about new chapters
+* Updates feed
+* Global search
 
 ### Screenshots
 
@@ -39,4 +41,4 @@ published by the Free Software Foundation, either version 3 of the License, or
 
 ### Disclaimer
 
-The developers of this application does not have any affiliation with the content providers available.
+The developers of this application does not have any affiliation with the content providers available.

app/build.gradle

@@ -6,7 +6,6 @@ plugins {
 }
 
 def gitCommits = 'git rev-list --count HEAD'.execute([], rootDir).text.trim().toInteger()
-def gitBranch = 'git branch --show-current'.execute([], rootDir).text.trim()
 
 android {
 	compileSdkVersion 29
@@ -17,9 +16,7 @@ android {
 		minSdkVersion 21
 		targetSdkVersion 29
 		versionCode gitCommits
-		versionName '0.3.2'
+		versionName '0.5.1'
-
-		buildConfigField 'String', 'GIT_BRANCH', "\"${gitBranch}\""
 
 		kapt {
 			arguments {
@@ -31,9 +28,6 @@ android {
 		sourceCompatibility JavaVersion.VERSION_1_8
 		targetCompatibility JavaVersion.VERSION_1_8
 	}
-	kotlinOptions {
-		jvmTarget = JavaVersion.VERSION_1_8.toString()
-	}
 	buildTypes {
 		debug {
 			applicationIdSuffix = '.debug'
@@ -57,24 +51,31 @@ android {
 androidExtensions {
 	experimental = true
 }
+tasks.withType(org.jetbrains.kotlin.gradle.tasks.KotlinCompile).all {
+	kotlinOptions {
+		jvmTarget = JavaVersion.VERSION_1_8.toString()
+		freeCompilerArgs += ['-Xopt-in=kotlinx.coroutines.ExperimentalCoroutinesApi', '-Xjvm-default=all']
+	}
+}
 dependencies {
 	implementation fileTree(dir: 'libs', include: ['*.jar', '*.aar'])
 	implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
-	implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.5'
+	implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.9'
-	implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.5'
+	implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.9'
 
-	implementation 'androidx.core:core-ktx:1.3.0-rc01'
+	implementation 'androidx.core:core-ktx:1.5.0-alpha02'
-	implementation 'androidx.appcompat:appcompat:1.2.0-beta01'
+	implementation 'androidx.activity:activity-ktx:1.2.0-alpha08'
-	implementation 'androidx.activity:activity-ktx:1.2.0-alpha04'
+	implementation 'androidx.fragment:fragment-ktx:1.3.0-alpha08'
-	implementation 'androidx.fragment:fragment-ktx:1.3.0-alpha04'
+	implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.3.0-alpha07'
-	implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.3.0-alpha02'
+	implementation 'androidx.constraintlayout:constraintlayout:2.0.1'
-	implementation 'androidx.constraintlayout:constraintlayout:2.0.0-beta5'
+	implementation 'androidx.swiperefreshlayout:swiperefreshlayout:1.1.0'
-	implementation 'androidx.swiperefreshlayout:swiperefreshlayout:1.1.0-rc01'
+	implementation 'androidx.recyclerview:recyclerview:1.2.0-alpha05'
-	implementation 'androidx.recyclerview:recyclerview:1.2.0-alpha03'
 	implementation 'androidx.viewpager2:viewpager2:1.1.0-alpha01'
 	implementation 'androidx.preference:preference-ktx:1.1.1'
-	implementation 'androidx.work:work-runtime-ktx:2.3.4'
+	implementation 'androidx.work:work-runtime-ktx:2.4.0'
-	implementation 'com.google.android.material:material:1.2.0-alpha06'
+	implementation 'com.google.android.material:material:1.3.0-alpha02'
+	//noinspection LifecycleAnnotationProcessorWithJava8
+	kapt 'androidx.lifecycle:lifecycle-compiler:2.3.0-alpha07'
 
 	implementation 'androidx.room:room-runtime:2.2.5'
 	implementation 'androidx.room:room-ktx:2.2.5'
@@ -86,12 +87,12 @@ dependencies {
 	implementation 'com.github.moxy-community:moxy-ktx:2.1.2'
 	kapt 'com.github.moxy-community:moxy-compiler:2.1.2'
 
-	implementation 'com.squareup.okhttp3:okhttp:4.6.0'
+	implementation 'com.squareup.okhttp3:okhttp:4.8.1'
-	implementation 'com.squareup.okio:okio:2.6.0'
+	implementation 'com.squareup.okio:okio:2.8.0'
 	implementation 'org.jsoup:jsoup:1.13.1'
 
-	implementation 'org.koin:koin-android:2.1.5'
+	implementation 'org.koin:koin-android:2.2.0-beta-1'
-	implementation 'io.coil-kt:coil:0.10.1'
+	implementation 'io.coil-kt:coil:1.0.0-rc2'
 	implementation 'com.davemorrissey.labs:subsampling-scale-image-view:3.10.0'
 	implementation 'com.tomclaw.cache:cache:1.0'
 
@@ -100,5 +101,5 @@ dependencies {
 	releaseImplementation 'com.github.ChuckerTeam.Chucker:library-no-op:3.2.0'
 
 	testImplementation 'junit:junit:4.13'
-	testImplementation 'org.json:json:20190722'
+	testImplementation 'org.json:json:20200518'
 }

app/src/debug/res/drawable/ic_launcher_foreground.xml

@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="108dp"
-    android:height="108dp"
-    android:viewportWidth="108"
-    android:viewportHeight="108"
-    android:tint="#E6000A">
-  <group android:scaleX="0.40188664"
-      android:scaleY="0.40188664"
-      android:translateX="32.90095"
-      android:translateY="18.7272">
-    <group android:translateY="139.39206">
-      <path android:pathData="M83.796875,-0L105.6875,-0L60.765625,-55.828125L103.09375,-101L82.078125,-101L32.25,-49.1875L32.25,-101L13.53125,-101L13.53125,-0L32.25,-0L32.25,-25.8125L48.234375,-42.265625L83.796875,-0Z"
-          android:fillColor="#E6000A"/>
-    </group>
-  </group>
-</vector>

app/src/debug/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@color/ic_launcher_background"/>
-    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
-</adaptive-icon>

app/src/debug/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@color/ic_launcher_background"/>
-    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
-</adaptive-icon>

app/src/debug/res/values/ic_launcher_background.xml

@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <color name="ic_launcher_background">#FFFFFF</color>
-</resources>

app/src/main/AndroidManifest.xml

@@ -23,7 +23,7 @@
 		android:theme="@style/AppTheme"
 		android:usesCleartextTraffic="true"
 		tools:ignore="UnusedAttribute">
-		<activity android:name=".ui.main.MainActivity">
+		<activity android:name=".ui.list.MainActivity">
 			<intent-filter>
 				<action android:name="android.intent.action.MAIN" />
 				<category android:name="android.intent.category.LAUNCHER" />
@@ -59,7 +59,7 @@
 			android:theme="@android:style/Theme.DeviceDefault.Dialog"
 			android:windowSoftInputMode="stateAlwaysHidden" />
 		<activity
-			android:name=".ui.main.list.favourites.categories.CategoriesActivity"
+			android:name="org.koitharu.kotatsu.ui.list.favourites.categories.CategoriesActivity"
 			android:label="@string/favourites_categories"
 			android:windowSoftInputMode="stateAlwaysHidden" />
 		<activity
@@ -69,6 +69,8 @@
 				<action android:name="android.appwidget.action.APPWIDGET_CONFIGURE" />
 			</intent-filter>
 		</activity>
+		<activity android:name=".ui.search.global.GlobalSearchActivity"
+			android:label="@string/search" />
 
 		<service
 			android:name=".ui.download.DownloadService"

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

@@ -1,11 +1,12 @@
 package org.koitharu.kotatsu
 
 import android.app.Application
+import android.os.StrictMode
 import androidx.appcompat.app.AppCompatDelegate
 import androidx.room.Room
 import coil.Coil
 import coil.ComponentRegistry
-import coil.ImageLoaderBuilder
+import coil.ImageLoader
 import coil.util.CoilUtils
 import com.chuckerteam.chucker.api.ChuckerCollector
 import com.chuckerteam.chucker.api.ChuckerInterceptor
@@ -13,16 +14,17 @@ import okhttp3.OkHttpClient
 import org.koin.android.ext.koin.androidContext
 import org.koin.android.ext.koin.androidLogger
 import org.koin.core.context.startKoin
+import org.koin.core.logger.Level
 import org.koin.dsl.module
+import org.koitharu.kotatsu.core.db.DatabasePrePopulateCallback
 import org.koitharu.kotatsu.core.db.MangaDatabase
-import org.koitharu.kotatsu.core.db.migrations.Migration1To2
+import org.koitharu.kotatsu.core.db.migrations.*
-import org.koitharu.kotatsu.core.db.migrations.Migration2To3
-import org.koitharu.kotatsu.core.db.migrations.Migration3To4
 import org.koitharu.kotatsu.core.local.CbzFetcher
 import org.koitharu.kotatsu.core.local.PagesCache
 import org.koitharu.kotatsu.core.local.cookies.PersistentCookieJar
 import org.koitharu.kotatsu.core.local.cookies.cache.SetCookieCache
 import org.koitharu.kotatsu.core.local.cookies.persistence.SharedPrefsCookiePersistor
+import org.koitharu.kotatsu.core.parser.LocalMangaRepository
 import org.koitharu.kotatsu.core.parser.UserAgentInterceptor
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.domain.MangaLoaderContext
@@ -45,6 +47,19 @@ class KotatsuApp : Application() {
 
 	override fun onCreate() {
 		super.onCreate()
+		if (BuildConfig.DEBUG) {
+			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)
+				.penaltyLog()
+				.build())
+		}
 		initKoin()
 		initCoil()
 		Thread.setDefaultUncaughtExceptionHandler(AppCrashHandler(applicationContext))
@@ -59,7 +74,7 @@ class KotatsuApp : Application() {
 
 	private fun initKoin() {
 		startKoin {
-			androidLogger()
+			androidLogger(Level.ERROR)
 			androidContext(applicationContext)
 			modules(
 				module {
@@ -74,7 +89,7 @@ class KotatsuApp : Application() {
 					single {
 						MangaLoaderContext()
 					}
-					factory {
+					single {
 						AppSettings(applicationContext)
 					}
 					single {
@@ -87,7 +102,7 @@ class KotatsuApp : Application() {
 
 	private fun initCoil() {
 		Coil.setImageLoader(
-			ImageLoaderBuilder(applicationContext)
+			ImageLoader.Builder(applicationContext)
 				.okHttpClient(
 					okHttp()
 						.cache(CoilUtils.createDefaultCache(applicationContext))
@@ -124,5 +139,6 @@ class KotatsuApp : Application() {
 		applicationContext,
 		MangaDatabase::class.java,
 		"kotatsu-db"
-	).addMigrations(Migration1To2, Migration2To3, Migration3To4)
+	).addMigrations(Migration1To2, Migration2To3, Migration3To4, Migration4To5, Migration5To6)
+		.addCallback(DatabasePrePopulateCallback(resources))
 }

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

@@ -0,0 +1,16 @@
+package org.koitharu.kotatsu.core.db
+
+import android.content.res.Resources
+import androidx.room.RoomDatabase
+import androidx.sqlite.db.SupportSQLiteDatabase
+import org.koitharu.kotatsu.R
+
+class DatabasePrePopulateCallback(private val resources: Resources) : RoomDatabase.Callback() {
+
+	override fun onCreate(db: SupportSQLiteDatabase) {
+		db.execSQL(
+			"INSERT INTO favourite_categories (created_at, sort_key, title) VALUES (?,?,?)",
+			arrayOf(System.currentTimeMillis(), 1, resources.getString(R.string.read_later))
+		)
+	}
+}

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

@@ -9,8 +9,8 @@ import org.koitharu.kotatsu.core.db.entity.FavouriteCategoryEntity
 @Dao
 abstract class FavouriteCategoriesDao {
 
-	@Query("SELECT category_id,title,created_at FROM favourite_categories ORDER BY :orderBy")
+	@Query("SELECT * FROM favourite_categories ORDER BY sort_key")
-	abstract suspend fun findAll(orderBy: String): List<FavouriteCategoryEntity>
+	abstract suspend fun findAll(): List<FavouriteCategoryEntity>
 
 	@Insert(onConflict = OnConflictStrategy.ABORT)
 	abstract suspend fun insert(category: FavouriteCategoryEntity): Long
@@ -20,4 +20,14 @@ abstract class FavouriteCategoriesDao {
 
 	@Query("UPDATE favourite_categories SET title = :title WHERE category_id = :id")
 	abstract suspend fun update(id: Long, title: String)
+
+	@Query("UPDATE favourite_categories SET sort_key = :sortKey WHERE category_id = :id")
+	abstract suspend fun update(id: Long, sortKey: Int)
+
+	@Query("SELECT MAX(sort_key) FROM favourite_categories")
+	protected abstract suspend fun getMaxSortKey(): Int?
+
+	suspend fun getNextSortKey(): Int {
+		return (getMaxSortKey() ?: 0) + 1
+	}
 }

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

@@ -8,10 +8,18 @@ import org.koitharu.kotatsu.core.db.entity.MangaEntity
 @Dao
 abstract class FavouritesDao {
 
+	@Transaction
+	@Query("SELECT * FROM favourites GROUP BY manga_id ORDER BY created_at")
+	abstract suspend fun findAll(): List<FavouriteManga>
+
 	@Transaction
 	@Query("SELECT * FROM favourites GROUP BY manga_id ORDER BY created_at LIMIT :limit OFFSET :offset")
 	abstract suspend fun findAll(offset: Int, limit: Int): List<FavouriteManga>
 
+	@Transaction
+	@Query("SELECT * FROM favourites WHERE category_id = :categoryId GROUP BY manga_id ORDER BY created_at")
+	abstract suspend fun findAll(categoryId: Long): List<FavouriteManga>
+
 	@Transaction
 	@Query("SELECT * FROM favourites WHERE category_id = :categoryId GROUP BY manga_id ORDER BY created_at LIMIT :limit OFFSET :offset")
 	abstract suspend fun findAll(categoryId: Long, offset: Int, limit: Int): List<FavouriteManga>

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

@@ -7,8 +7,9 @@ import org.koitharu.kotatsu.core.db.entity.*
 @Database(
 	entities = [
 		MangaEntity::class, TagEntity::class, HistoryEntity::class, MangaTagsEntity::class,
-		FavouriteCategoryEntity::class, FavouriteEntity::class, MangaPrefsEntity::class, TrackEntity::class
+		FavouriteCategoryEntity::class, FavouriteEntity::class, MangaPrefsEntity::class,
-	], version = 4
+		TrackEntity::class, TrackLogEntity::class
+	], version = 6
 )
 abstract class MangaDatabase : RoomDatabase() {
 
@@ -25,4 +26,6 @@ abstract class MangaDatabase : RoomDatabase() {
 	abstract val favouriteCategoriesDao: FavouriteCategoriesDao
 
 	abstract val tracksDao: TracksDao
+
+	abstract val trackLogsDao: TrackLogsDao
 }

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

@@ -4,19 +4,19 @@ import androidx.room.*
 import org.koitharu.kotatsu.core.db.entity.TagEntity
 
 @Dao
-interface TagsDao {
+abstract class TagsDao {
 
 	@Query("SELECT * FROM tags")
-	suspend fun getAllTags(): List<TagEntity>
+	abstract suspend fun getAllTags(): List<TagEntity>
 
 	@Insert(onConflict = OnConflictStrategy.IGNORE)
-	suspend fun insert(tag: TagEntity): Long
+	abstract suspend fun insert(tag: TagEntity): Long
 
 	@Update(onConflict = OnConflictStrategy.IGNORE)
-	suspend fun update(tag: TagEntity): Int
+	abstract suspend fun update(tag: TagEntity): Int
 
 	@Transaction
-	suspend fun upsert(tags: Iterable<TagEntity>) {
+	open suspend fun upsert(tags: Iterable<TagEntity>) {
 		tags.forEach { tag ->
 			if (update(tag) <= 0) {
 				insert(tag)

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

@@ -0,0 +1,28 @@
+package org.koitharu.kotatsu.core.db
+
+import androidx.room.*
+import org.koitharu.kotatsu.core.db.entity.TrackLogEntity
+import org.koitharu.kotatsu.core.db.entity.TrackLogWithManga
+
+@Dao
+interface TrackLogsDao {
+
+	@Transaction
+	@Query("SELECT * FROM track_logs ORDER BY created_at DESC LIMIT :limit OFFSET :offset")
+	suspend fun findAll(offset: Int, limit: Int): List<TrackLogWithManga>
+
+	@Query("DELETE FROM track_logs")
+	suspend fun clear()
+
+	@Insert(onConflict = OnConflictStrategy.REPLACE)
+	suspend fun insert(entity: TrackLogEntity): Long
+
+	@Query("DELETE FROM track_logs WHERE manga_id = :mangaId")
+	suspend fun removeAll(mangaId: Long)
+
+	@Query("DELETE FROM track_logs WHERE manga_id NOT IN (SELECT manga_id FROM tracks)")
+	suspend fun cleanup()
+
+	@Query("SELECT COUNT(*) FROM track_logs")
+	suspend fun count(): Int
+}

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

@@ -25,11 +25,13 @@ abstract class TracksDao {
 	@Query("DELETE FROM tracks WHERE manga_id = :mangaId")
 	abstract suspend fun delete(mangaId: Long)
 
+	@Query("DELETE FROM tracks WHERE manga_id NOT IN (SELECT manga_id FROM history UNION SELECT manga_id FROM favourites)")
+	abstract suspend fun cleanup()
+
 	@Transaction
 	open suspend fun upsert(entity: TrackEntity) {
 		if (update(entity) == 0) {
 			insert(entity)
 		}
 	}
-
 }

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

@@ -11,12 +11,14 @@ data class FavouriteCategoryEntity(
 	@PrimaryKey(autoGenerate = true)
 	@ColumnInfo(name = "category_id") val categoryId: Int,
 	@ColumnInfo(name = "created_at") val createdAt: Long,
+	@ColumnInfo(name = "sort_key") val sortKey: Int,
 	@ColumnInfo(name = "title") val title: String
 ) {
 
 	fun toFavouriteCategory(id: Long? = null) = FavouriteCategory(
 		id = id ?: categoryId.toLong(),
 		title = title,
+		sortKey = sortKey,
 		createdAt = Date(createdAt)
 	)
 }

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

@@ -32,6 +32,6 @@ data class HistoryEntity(
 		updatedAt = Date(updatedAt),
 		chapterId = chapterId,
 		page = page,
-		scroll = scroll
+		scroll = scroll.toInt()
 	)
 }

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

@@ -0,0 +1,24 @@
+package org.koitharu.kotatsu.core.db.entity
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.ForeignKey
+import androidx.room.PrimaryKey
+
+@Entity(
+	tableName = "track_logs", foreignKeys = [
+		ForeignKey(
+			entity = MangaEntity::class,
+			parentColumns = ["manga_id"],
+			childColumns = ["manga_id"],
+			onDelete = ForeignKey.CASCADE
+		)
+	]
+)
+data class TrackLogEntity(
+	@PrimaryKey(autoGenerate = true)
+	@ColumnInfo(name = "id") val id: Long = 0L,
+	@ColumnInfo(name = "manga_id", index = true) val mangaId: Long,
+	@ColumnInfo(name = "chapters") val chapters: String,
+	@ColumnInfo(name = "created_at") val createdAt: Long = System.currentTimeMillis()
+)

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

@@ -0,0 +1,30 @@
+package org.koitharu.kotatsu.core.db.entity
+
+import androidx.room.Embedded
+import androidx.room.Junction
+import androidx.room.Relation
+import org.koitharu.kotatsu.core.model.TrackingLogItem
+import java.util.*
+
+data class TrackLogWithManga(
+	@Embedded val trackLog: TrackLogEntity,
+	@Relation(
+		parentColumn = "manga_id",
+		entityColumn = "manga_id"
+	)
+	val manga: MangaEntity,
+	@Relation(
+		parentColumn = "manga_id",
+		entityColumn = "tag_id",
+		associateBy = Junction(MangaTagsEntity::class)
+	)
+	val tags: List<TagEntity>
+) {
+
+	fun toTrackingLogItem() = TrackingLogItem(
+		id = trackLog.id,
+		chapters = trackLog.chapters.split('\n').filterNot { x -> x.isEmpty() },
+		manga = manga.toManga(tags.map { x -> x.toMangaTag() }.toSet()),
+		createdAt = Date(trackLog.createdAt)
+	)
+}

app/src/main/java/org/koitharu/kotatsu/core/db/migrations/Migration4To5.kt

@@ -0,0 +1,11 @@
+package org.koitharu.kotatsu.core.db.migrations
+
+import androidx.room.migration.Migration
+import androidx.sqlite.db.SupportSQLiteDatabase
+
+object Migration4To5 : Migration(4, 5) {
+
+	override fun migrate(database: SupportSQLiteDatabase) {
+		database.execSQL("ALTER TABLE favourite_categories ADD COLUMN sort_key INTEGER NOT NULL DEFAULT 0")
+	}
+}

app/src/main/java/org/koitharu/kotatsu/core/db/migrations/Migration5To6.kt

@@ -0,0 +1,12 @@
+package org.koitharu.kotatsu.core.db.migrations
+
+import androidx.room.migration.Migration
+import androidx.sqlite.db.SupportSQLiteDatabase
+
+object Migration5To6 : Migration(5, 6) {
+
+	override fun migrate(database: SupportSQLiteDatabase) {
+		database.execSQL("CREATE TABLE IF NOT EXISTS track_logs (id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, manga_id INTEGER NOT NULL, chapters TEXT NOT NULL, created_at INTEGER NOT NULL, FOREIGN KEY(manga_id) REFERENCES manga(manga_id) ON UPDATE NO ACTION ON DELETE CASCADE)")
+		database.execSQL("CREATE INDEX IF NOT EXISTS index_track_logs_manga_id ON track_logs (manga_id)")
+	}
+}

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

@@ -1,5 +1,3 @@
 package org.koitharu.kotatsu.core.exceptions
 
-import java.lang.NullPointerException
-
 class MangaNotFoundException(s: String? = null) : RuntimeException(s)

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

@@ -9,5 +9,6 @@ data class AppVersion(
 	val name: String,
 	val url: String,
 	val apkSize: Long,
-	val apkUrl: String
+	val apkUrl: String,
+	val description: String
 ) : Parcelable

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

@@ -22,7 +22,8 @@ class GithubRepository : KoinComponent {
 			url = json.getString("html_url"),
 			name = json.getString("name").removePrefix("v"),
 			apkSize = asset.getLong("size"),
-			apkUrl = asset.getString("browser_download_url")
+			apkUrl = asset.getString("browser_download_url"),
+			description = json.getString("body")
 		)
 	}
 }

app/src/main/java/org/koitharu/kotatsu/core/local/CbzFetcher.kt

@@ -2,7 +2,7 @@ package org.koitharu.kotatsu.core.local
 
 import android.net.Uri
 import android.webkit.MimeTypeMap
-import coil.bitmappool.BitmapPool
+import coil.bitmap.BitmapPool
 import coil.decode.DataSource
 import coil.decode.Options
 import coil.fetch.FetchResult

app/src/main/java/org/koitharu/kotatsu/core/local/cookies/cache/SetCookieCache.kt

@@ -37,7 +37,7 @@ class SetCookieCache : CookieCache {
 
 	override fun iterator(): MutableIterator<Cookie> = SetCookieCacheIterator()
 
-	private inner class SetCookieCacheIterator() : MutableIterator<Cookie> {
+	private inner class SetCookieCacheIterator : MutableIterator<Cookie> {
 
 		private val iterator = cookies.iterator()
 

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

@@ -8,5 +8,6 @@ import java.util.*
 data class FavouriteCategory(
 	val id: Long,
 	val title: String,
+	val sortKey: Int,
 	val createdAt: Date
 ) : Parcelable

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

@@ -10,5 +10,5 @@ data class MangaHistory(
 	val updatedAt: Date,
 	val chapterId: Long,
 	val page: Int,
-	val scroll: Float
+	val scroll: Int
 ) : Parcelable

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

@@ -0,0 +1,13 @@
+package org.koitharu.kotatsu.core.model
+
+import android.os.Parcelable
+import kotlinx.android.parcel.Parcelize
+import java.util.*
+
+@Parcelize
+data class TrackingLogItem (
+	val id: Long,
+	val manga: Manga,
+	val chapters: List<String>,
+	val createdAt: Date
+): Parcelable

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

@@ -1,7 +1,10 @@
 package org.koitharu.kotatsu.core.parser
 
+import android.annotation.SuppressLint
 import android.content.Context
 import android.net.Uri
+import android.webkit.MimeTypeMap
+import androidx.collection.ArraySet
 import androidx.core.net.toFile
 import androidx.core.net.toUri
 import org.koin.core.KoinComponent
@@ -41,69 +44,84 @@ class LocalMangaRepository : MangaRepository, KoinComponent {
 
 	@Suppress("BlockingMethodInNonBlockingContext")
 	override suspend fun getPages(chapter: MangaChapter): List<MangaPage> {
-		val file = Uri.parse(chapter.url).toFile()
+		val uri = Uri.parse(chapter.url)
+		val file = uri.toFile()
 		val zip = ZipFile(file)
-		val pattern = zip.getEntry(MangaZip.INDEX_ENTRY)?.let(zip::readText)?.let(::MangaIndex)
+		val index = zip.getEntry(MangaZip.INDEX_ENTRY)?.let(zip::readText)?.let(::MangaIndex)
-			?.getChapterNamesPattern(chapter)
+		var entries = zip.entries().asSequence()
-		val entries = if (pattern != null) {
+		entries = if (index != null) {
-			zip.entries().asSequence()
+			val pattern = index.getChapterNamesPattern(chapter)
-				.filter { x -> !x.isDirectory && x.name.substringBefore('.').matches(pattern) }
+			entries.filter { x -> !x.isDirectory && x.name.substringBefore('.').matches(pattern) }
 		} else {
-			zip.entries().asSequence().filter { x -> !x.isDirectory }
+			val parent = uri.fragment.orEmpty()
-		}.toList().sortedWith(compareBy(AlphanumComparator()) { x -> x.name })
+			entries.filter { x ->
-		return entries.map { x ->
+				!x.isDirectory && x.name.substringBeforeLast(
-			val uri = zipUri(file, x.name)
+					File.separatorChar,
-			MangaPage(
+					""
-				id = uri.longHashCode(),
+				) == parent
-				url = uri,
+			}
-				source = MangaSource.LOCAL
-			)
 		}
+		return entries
+			.toList()
+			.sortedWith(compareBy(AlphanumComparator()) { x -> x.name })
+			.map { x ->
+				val entryUri = zipUri(file, x.name)
+				MangaPage(
+					id = entryUri.longHashCode(),
+					url = entryUri,
+					source = MangaSource.LOCAL
+				)
+			}
 	}
 
-
 	fun delete(manga: Manga): Boolean {
 		val file = Uri.parse(manga.url).toFile()
 		return file.delete()
 	}
 
-	fun getFromFile(file: File): Manga {
+	@SuppressLint("DefaultLocale")
-		val zip = ZipFile(file)
+	fun getFromFile(file: File): Manga = ZipFile(file).use { zip ->
 		val fileUri = file.toUri().toString()
 		val entry = zip.getEntry(MangaZip.INDEX_ENTRY)
 		val index = entry?.let(zip::readText)?.let(::MangaIndex)
-		return index?.let {
+		val info = index?.getMangaInfo()
-			it.getMangaInfo()?.let { x ->
+		if (index != null && info != null) {
-				x.copy(
+			return info.copy(
-					source = MangaSource.LOCAL,
-					url = fileUri,
-					coverUrl = zipUri(
-						file,
-						entryName = it.getCoverEntry()
-							?: findFirstEntry(zip.entries())?.name.orEmpty()
-					),
-					chapters = x.chapters?.map { c -> c.copy(url = fileUri) }
-				)
-			}
-		} ?: run {
-			val title = file.nameWithoutExtension.replace("_", " ").capitalize()
-			Manga(
-				id = file.absolutePath.longHashCode(),
-				title = title,
-				url = fileUri,
 				source = MangaSource.LOCAL,
-				coverUrl = zipUri(file, findFirstEntry(zip.entries())?.name.orEmpty()),
+				url = fileUri,
-				chapters = listOf(
+				coverUrl = zipUri(
-					MangaChapter(
+					file,
-						id = file.absolutePath.longHashCode(),
+					entryName = index.getCoverEntry()
-						url = fileUri,
+						?: findFirstEntry(zip.entries(), isImage = true)?.name.orEmpty()
-						number = 1,
+				),
-						source = MangaSource.LOCAL,
+				chapters = info.chapters?.map { c -> c.copy(url = fileUri) }
-						name = title
-					)
-				)
 			)
 		}
+		// fallback
+		val title = file.nameWithoutExtension.replace("_", " ").capitalize()
+		val chapters = ArraySet<String>()
+		for (x in zip.entries()) {
+			if (!x.isDirectory) {
+				chapters += x.name.substringBeforeLast(File.separatorChar, "")
+			}
+		}
+		val uriBuilder = file.toUri().buildUpon()
+		Manga(
+			id = file.absolutePath.longHashCode(),
+			title = title,
+			url = fileUri,
+			source = MangaSource.LOCAL,
+			coverUrl = zipUri(file, findFirstEntry(zip.entries(), isImage = true)?.name.orEmpty()),
+			chapters = chapters.sortedWith(AlphanumComparator()).mapIndexed { i, s ->
+				MangaChapter(
+					id = "$i$s".longHashCode(),
+					name = if (s.isEmpty()) title else s,
+					number = i + 1,
+					source = MangaSource.LOCAL,
+					url = uriBuilder.fragment(s).build().toString()
+				)
+			}
+		)
 	}
 
 	fun getRemoteManga(localManga: Manga): Manga? {
@@ -119,11 +137,19 @@ class LocalMangaRepository : MangaRepository, KoinComponent {
 	private fun zipUri(file: File, entryName: String) =
 		Uri.fromParts("cbz", file.path, entryName).toString()
 
-	private fun findFirstEntry(entries: Enumeration<out ZipEntry>): ZipEntry? {
+	private fun findFirstEntry(entries: Enumeration<out ZipEntry>, isImage: Boolean): ZipEntry? {
 		val list = entries.toList()
 			.filterNot { it.isDirectory }
 			.sortedWith(compareBy(AlphanumComparator()) { x -> x.name })
-		return list.firstOrNull()
+		return if (isImage) {
+			val map = MimeTypeMap.getSingleton()
+			list.firstOrNull {
+				map.getMimeTypeFromExtension(it.name.substringAfterLast('.'))
+					?.startsWith("image/") == true
+			}
+		} else {
+			list.firstOrNull()
+		}
 	}
 
 	override val sortOrders = emptySet<SortOrder>()

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

@@ -3,7 +3,6 @@ package org.koitharu.kotatsu.core.parser
 import android.annotation.SuppressLint
 import android.os.Build
 import okhttp3.Interceptor
-import okhttp3.Response
 import org.koitharu.kotatsu.BuildConfig
 import java.util.*
 

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

@@ -23,7 +23,12 @@ abstract class ChanRepository(loaderContext: MangaLoaderContext) : RemoteMangaRe
 	): List<Manga> {
 		val domain = conf.getDomain(defaultDomain)
 		val url = when {
-			query != null -> "https://$domain/?do=search&subaction=search&story=${query.urlEncoded()}"
+			!query.isNullOrEmpty() -> {
+				if (offset != 0) {
+					return emptyList()
+				}
+				"https://$domain/?do=search&subaction=search&story=${query.urlEncoded()}"
+			}
 			tag != null -> "https://$domain/tags/${tag.key}&n=${getSortKey2(sortOrder)}?offset=$offset"
 			else -> "https://$domain/${getSortKey(sortOrder)}?offset=$offset"
 		}
@@ -126,7 +131,7 @@ abstract class ChanRepository(loaderContext: MangaLoaderContext) : RemoteMangaRe
 	override fun onCreatePreferences() = setOf(R.string.key_parser_domain)
 
 	private fun getSortKey(sortOrder: SortOrder?) =
-		when (sortOrder ?: sortOrders.minBy { it.ordinal }) {
+		when (sortOrder ?: sortOrders.minByOrNull { it.ordinal }) {
 			SortOrder.ALPHABETICAL -> "catalog"
 			SortOrder.POPULARITY -> "mostfavorites"
 			SortOrder.NEWEST -> "manga/new"
@@ -134,7 +139,7 @@ abstract class ChanRepository(loaderContext: MangaLoaderContext) : RemoteMangaRe
 		}
 
 	private fun getSortKey2(sortOrder: SortOrder?) =
-		when (sortOrder ?: sortOrders.minBy { it.ordinal }) {
+		when (sortOrder ?: sortOrders.minByOrNull { it.ordinal }) {
 			SortOrder.ALPHABETICAL -> "abcasc"
 			SortOrder.POPULARITY -> "favdesc"
 			SortOrder.NEWEST -> "datedesc"

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

@@ -28,7 +28,7 @@ abstract class GroupleRepository(loaderContext: MangaLoaderContext) :
 		val doc = when {
 			!query.isNullOrEmpty() -> loaderContext.httpPost(
 				"https://$domain/search",
-				mapOf("q" to query, "offset" to offset.toString())
+				mapOf("q" to query.urlEncoded(), "offset" to offset.toString())
 			)
 			tag == null -> loaderContext.httpGet(
 				"https://$domain/list?sortType=${getSortKey(
@@ -113,7 +113,7 @@ abstract class GroupleRepository(loaderContext: MangaLoaderContext) :
 						a.attr("href")?.withDomain(domain) ?: return@mapIndexedNotNull null
 					MangaChapter(
 						id = href.longHashCode(),
-						name = a.ownText(),
+						name = a.ownText().removePrefix(manga.title).trim(),
 						number = i + 1,
 						url = href,
 						source = source
@@ -165,7 +165,7 @@ abstract class GroupleRepository(loaderContext: MangaLoaderContext) :
 	override fun onCreatePreferences() = setOf(R.string.key_parser_domain)
 
 	private fun getSortKey(sortOrder: SortOrder?) =
-		when (sortOrder ?: sortOrders.minBy { it.ordinal }) {
+		when (sortOrder ?: sortOrders.minByOrNull { it.ordinal }) {
 			SortOrder.ALPHABETICAL -> "name"
 			SortOrder.POPULARITY -> "rate"
 			SortOrder.UPDATED -> "updated"

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

@@ -12,7 +12,7 @@ import org.koitharu.kotatsu.utils.ext.withDomain
 
 class HenChanRepository(loaderContext: MangaLoaderContext) : ChanRepository(loaderContext) {
 
-	override val defaultDomain = "h-chan.me"
+	override val defaultDomain = "henchan.pro"
 	override val source = MangaSource.HENCHAN
 
 	override suspend fun getDetails(manga: Manga): Manga {

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

@@ -128,7 +128,7 @@ open class MangaLibRepository(loaderContext: MangaLoaderContext) :
 			tags = info.getElementsMatchingOwnText("Жанры")?.firstOrNull()
 				?.nextElementSibling()?.select("a")?.mapNotNull { a ->
 					MangaTag(
-						title = a.text(),
+						title = a.text().capitalize(),
 						key = a.attr("href").substringAfterLast('='),
 						source = source
 					)
@@ -182,7 +182,7 @@ open class MangaLibRepository(loaderContext: MangaLoaderContext) :
 					result += MangaTag(
 						source = source,
 						key = x.getInt("id").toString(),
-						title = x.getString("name")
+						title = x.getString("name").capitalize()
 					)
 				}
 				return result

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

@@ -37,7 +37,12 @@ class MangaTownRepository(loaderContext: MangaLoaderContext) : RemoteMangaReposi
 		}
 		val page = (offset / 30) + 1
 		val url = when {
-			!query.isNullOrEmpty() -> "$scheme://$domain/search?name=${query.urlEncoded()}"
+			!query.isNullOrEmpty() -> {
+				if (offset != 0) {
+					return emptyList()
+				}
+				"$scheme://$domain/search?name=${query.urlEncoded()}"
+			}
 			tag != null -> "$scheme://$domain/directory/${tag.key}/$page.htm$sortKey"
 			else -> "$scheme://$domain/directory/$page.htm$sortKey"
 		}

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

@@ -5,6 +5,6 @@ import org.koitharu.kotatsu.domain.MangaLoaderContext
 
 class ReadmangaRepository(loaderContext: MangaLoaderContext) : GroupleRepository(loaderContext) {
 
-	override val defaultDomain = "readmanga.me"
+	override val defaultDomain = "readmanga.live"
 	override val source = MangaSource.READMANGA_RU
 }

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

@@ -0,0 +1,6 @@
+package org.koitharu.kotatsu.core.prefs
+
+enum class AppSection {
+
+	LOCAL, FAVOURITES, HISTORY, FEED
+}

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

@@ -3,7 +3,6 @@ package org.koitharu.kotatsu.core.prefs
 import android.content.Context
 import android.content.SharedPreferences
 import android.content.res.Resources
-import android.os.StatFs
 import android.provider.Settings
 import androidx.appcompat.app.AppCompatDelegate
 import androidx.core.content.edit
@@ -27,6 +26,12 @@ class AppSettings private constructor(resources: Resources, private val prefs: S
 		ListMode.DETAILED_LIST
 	)
 
+	var defaultSection by EnumPreferenceDelegate(
+		AppSection::class.java,
+		resources.getString(R.string.key_app_section),
+		AppSection.HISTORY
+	)
+
 	val theme by StringIntPreferenceDelegate(
 		resources.getString(R.string.key_theme),
 		AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM

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

@@ -1,13 +1,6 @@
 package org.koitharu.kotatsu.core.prefs
 
-enum class ListMode(val id: Int) {
+enum class ListMode {
 
-	LIST(0),
+	LIST, DETAILED_LIST, GRID;
-	DETAILED_LIST(1),
-	GRID(2);
-
-	companion object {
-
-		fun valueOf(id: Int) = values().firstOrNull { it.id == id }
-	}
 }

app/src/main/java/org/koitharu/kotatsu/domain/MangaProviderFactory.kt

@@ -13,7 +13,8 @@ import java.util.*
 object MangaProviderFactory : KoinComponent {
 
 	private val loaderContext by inject<MangaLoaderContext>()
-	private val cache = EnumMap<MangaSource, WeakReference<MangaRepository>>(MangaSource::class.java)
+	private val cache =
+		EnumMap<MangaSource, WeakReference<MangaRepository>>(MangaSource::class.java)
 
 	fun getSources(includeHidden: Boolean): List<MangaSource> {
 		val settings = get<AppSettings>()
@@ -33,24 +34,37 @@ object MangaProviderFactory : KoinComponent {
 		}
 	}
 
-	fun createLocal(): LocalMangaRepository =
+	fun createLocal(): LocalMangaRepository {
-		(cache[MangaSource.LOCAL]?.get() as? LocalMangaRepository)
+		var instance = cache[MangaSource.LOCAL]?.get()
-			?: LocalMangaRepository().also {
+		if (instance == null) {
-				cache[MangaSource.LOCAL] = WeakReference<MangaRepository>(it)
+			synchronized(cache) {
+				instance = cache[MangaSource.LOCAL]?.get()
+				if (instance == null) {
+					instance = LocalMangaRepository()
+					cache[MangaSource.LOCAL] = WeakReference<MangaRepository>(instance)
+				}
 			}
+		}
+		return instance as LocalMangaRepository
+	}
 
 	@Throws(Throwable::class)
 	fun create(source: MangaSource): MangaRepository {
-		cache[source]?.get()?.let {
+		var instance = cache[source]?.get()
-			return it
+		if (instance == null) {
+			synchronized(cache) {
+				instance = cache[source]?.get()
+				if (instance == null) {
+					instance = try {
+						source.cls.getDeclaredConstructor(MangaLoaderContext::class.java)
+							.newInstance(loaderContext)
+					} catch (e: NoSuchMethodException) {
+						source.cls.newInstance()
+					}
+					cache[source] = WeakReference(instance!!)
+				}
+			}
 		}
-		val instance = try {
+		return instance!!
-			source.cls.getDeclaredConstructor(MangaLoaderContext::class.java)
-				.newInstance(loaderContext)
-		} catch (e: NoSuchMethodException) {
-			source.cls.newInstance()
-		}
-		cache[source] = WeakReference<MangaRepository>(instance)
-		return instance
 	}
 }

app/src/main/java/org/koitharu/kotatsu/domain/MangaSearchRepository.kt

@@ -0,0 +1,39 @@
+package org.koitharu.kotatsu.domain
+
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.flow
+import org.koin.core.KoinComponent
+import org.koitharu.kotatsu.core.model.Manga
+import org.koitharu.kotatsu.core.model.MangaSource
+import org.koitharu.kotatsu.core.model.SortOrder
+import java.util.*
+
+class MangaSearchRepository : KoinComponent {
+
+	fun globalSearch(query: String, batchSize: Int = 4): Flow<List<Manga>> = flow {
+		val sources = MangaProviderFactory.getSources(false)
+		val lists = EnumMap<MangaSource, List<Manga>>(MangaSource::class.java)
+		var i = 0
+		while (true) {
+			var isEmitted = false
+			for (source in sources) {
+				val list = lists.getOrPut(source) {
+					try {
+						MangaProviderFactory.create(source).getList(0, query, SortOrder.POPULARITY)
+					} catch (e: Throwable) {
+						e.printStackTrace()
+						emptyList<Manga>()
+					}
+				}
+				if (i < list.size) {
+					emit(list.subList(i, (i + batchSize).coerceAtMost(list.lastIndex)))
+					isEmitted = true
+				}
+			}
+			i += batchSize
+			if (!isEmitted) {
+				return@flow
+			}
+		}
+	}
+}

app/src/main/java/org/koitharu/kotatsu/domain/MangaUtils.kt

@@ -1,7 +1,9 @@
 package org.koitharu.kotatsu.domain
 
 import android.graphics.BitmapFactory
+import android.net.Uri
 import android.util.Size
+import androidx.annotation.WorkerThread
 import okhttp3.OkHttpClient
 import okhttp3.Request
 import org.koin.core.KoinComponent
@@ -12,6 +14,7 @@ import org.koitharu.kotatsu.core.prefs.ReaderMode
 import org.koitharu.kotatsu.utils.ext.await
 import org.koitharu.kotatsu.utils.ext.medianOrNull
 import java.io.InputStream
+import java.util.zip.ZipFile
 
 object MangaUtils : KoinComponent {
 
@@ -19,17 +22,28 @@ object MangaUtils : KoinComponent {
 	 * Automatic determine type of manga by page size
 	 * @return ReaderMode.WEBTOON if page is wide
 	 */
+	@WorkerThread
+	@Suppress("BlockingMethodInNonBlockingContext")
 	suspend fun determineReaderMode(pages: List<MangaPage>): ReaderMode? {
 		try {
 			val page = pages.medianOrNull() ?: return null
 			val url = MangaProviderFactory.create(page.source).getPageFullUrl(page)
-			val client = get<OkHttpClient>()
+			val uri = Uri.parse(url)
-			val request = Request.Builder()
+			val size = if (uri.scheme == "cbz") {
-				.url(url)
+				val zip = ZipFile(uri.schemeSpecificPart)
-				.get()
+				val entry = zip.getEntry(uri.fragment)
-				.build()
+				zip.getInputStream(entry).use {
-			val size = client.newCall(request).await().use {
+					getBitmapSize(it)
-				getBitmapSize(it.body?.byteStream())
+				}
+			} else {
+				val client = get<OkHttpClient>()
+				val request = Request.Builder()
+					.url(url)
+					.get()
+					.build()
+				client.newCall(request).await().use {
+					getBitmapSize(it.body?.byteStream())
+				}
 			}
 			return when {
 				size.width * 2 < size.height -> ReaderMode.WEBTOON

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

@@ -1,5 +1,6 @@
 package org.koitharu.kotatsu.domain.favourites
 
+import androidx.collection.ArraySet
 import androidx.room.withTransaction
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
@@ -12,24 +13,33 @@ import org.koitharu.kotatsu.core.db.entity.MangaEntity
 import org.koitharu.kotatsu.core.db.entity.TagEntity
 import org.koitharu.kotatsu.core.model.FavouriteCategory
 import org.koitharu.kotatsu.core.model.Manga
-import java.util.*
 
 class FavouritesRepository : KoinComponent {
 
 	private val db: MangaDatabase by inject()
 
+	suspend fun getAllManga(): List<Manga> {
+		val entities = db.favouritesDao.findAll()
+		return entities.map { it.manga.toManga(it.tags.map(TagEntity::toMangaTag).toSet()) }
+	}
+
 	suspend fun getAllManga(offset: Int): List<Manga> {
 		val entities = db.favouritesDao.findAll(offset, 20)
 		return entities.map { it.manga.toManga(it.tags.map(TagEntity::toMangaTag).toSet()) }
 	}
 
+	suspend fun getManga(categoryId: Long): List<Manga> {
+		val entities = db.favouritesDao.findAll(categoryId)
+		return entities.map { it.manga.toManga(it.tags.map(TagEntity::toMangaTag).toSet()) }
+	}
+
 	suspend fun getManga(categoryId: Long, offset: Int): List<Manga> {
 		val entities = db.favouritesDao.findAll(categoryId, offset, 20)
 		return entities.map { it.manga.toManga(it.tags.map(TagEntity::toMangaTag).toSet()) }
 	}
 
 	suspend fun getAllCategories(): List<FavouriteCategory> {
-		val entities = db.favouriteCategoriesDao.findAll("created_at")
+		val entities = db.favouriteCategoriesDao.findAll()
 		return entities.map { it.toFavouriteCategory() }
 	}
 
@@ -42,17 +52,32 @@ class FavouritesRepository : KoinComponent {
 		val entity = FavouriteCategoryEntity(
 			title = title,
 			createdAt = System.currentTimeMillis(),
+			sortKey = db.favouriteCategoriesDao.getNextSortKey(),
 			categoryId = 0
 		)
 		val id = db.favouriteCategoriesDao.insert(entity)
+		notifyCategoriesChanged()
 		return entity.toFavouriteCategory(id)
 	}
+
 	suspend fun renameCategory(id: Long, title: String) {
 		db.favouriteCategoriesDao.update(id, title)
+		notifyCategoriesChanged()
 	}
 
 	suspend fun removeCategory(id: Long) {
 		db.favouriteCategoriesDao.delete(id)
+		notifyCategoriesChanged()
+	}
+
+	suspend fun reorderCategories(orderedIds: List<Long>) {
+		val dao = db.favouriteCategoriesDao
+		db.withTransaction {
+			for ((i, id) in orderedIds.withIndex()) {
+				dao.update(id, i)
+			}
+		}
+		notifyCategoriesChanged()
 	}
 
 	suspend fun addToCategory(manga: Manga, categoryId: Long) {
@@ -73,14 +98,14 @@ class FavouritesRepository : KoinComponent {
 
 	companion object {
 
-		private val listeners = HashSet<OnFavouritesChangeListener>()
+		private val listeners = ArraySet<OnFavouritesChangeListener>()
 
 		fun subscribe(listener: OnFavouritesChangeListener) {
 			listeners += listener
 		}
 
 		fun unsubscribe(listener: OnFavouritesChangeListener) {
-			listeners += listener
+			listeners -= listener
 		}
 
 		private suspend fun notifyFavouritesChanged(mangaId: Long) {
@@ -88,5 +113,11 @@ class FavouritesRepository : KoinComponent {
 				listeners.forEach { x -> x.onFavouritesChanged(mangaId) }
 			}
 		}
+
+		private suspend fun notifyCategoriesChanged() {
+			withContext(Dispatchers.Main) {
+				listeners.forEach { x -> x.onCategoriesChanged() }
+			}
+		}
 	}
 }

app/src/main/java/org/koitharu/kotatsu/domain/favourites/OnFavouritesChangeListener.kt

@@ -3,4 +3,6 @@ package org.koitharu.kotatsu.domain.favourites
 interface OnFavouritesChangeListener {
 
 	fun onFavouritesChanged(mangaId: Long)
+
+	fun onCategoriesChanged()
 }

app/src/main/java/org/koitharu/kotatsu/domain/history/HistoryRepository.kt

@@ -1,5 +1,6 @@
 package org.koitharu.kotatsu.domain.history
 
+import androidx.collection.ArraySet
 import androidx.room.withTransaction
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
@@ -24,7 +25,7 @@ class HistoryRepository : KoinComponent {
 		return entities.map { it.manga.toManga(it.tags.map(TagEntity::toMangaTag).toSet()) }
 	}
 
-	suspend fun addOrUpdate(manga: Manga, chapterId: Long, page: Int, scroll: Float) {
+	suspend fun addOrUpdate(manga: Manga, chapterId: Long, page: Int, scroll: Int) {
 		val tags = manga.tags.map(TagEntity.Companion::fromMangaTag)
 		db.withTransaction {
 			db.tagsDao.upsert(tags)
@@ -36,7 +37,7 @@ class HistoryRepository : KoinComponent {
 					updatedAt = System.currentTimeMillis(),
 					chapterId = chapterId,
 					page = page,
-					scroll = scroll
+					scroll = scroll.toFloat() // we migrate to int, but decide to not update database
 				)
 			)
 			trackingRepository.upsert(manga)
@@ -45,15 +46,7 @@ class HistoryRepository : KoinComponent {
 	}
 
 	suspend fun getOne(manga: Manga): MangaHistory? {
-		return db.historyDao.find(manga.id)?.let {
+		return db.historyDao.find(manga.id)?.toMangaHistory()
-			MangaHistory(
-				createdAt = Date(it.createdAt),
-				updatedAt = Date(it.updatedAt),
-				chapterId = it.chapterId,
-				page = it.page,
-				scroll = it.scroll
-			)
-		}
 	}
 
 	suspend fun clear() {
@@ -79,14 +72,14 @@ class HistoryRepository : KoinComponent {
 
 	companion object {
 
-		private val listeners = HashSet<OnHistoryChangeListener>()
+		private val listeners = ArraySet<OnHistoryChangeListener>()
 
 		fun subscribe(listener: OnHistoryChangeListener) {
 			listeners += listener
 		}
 
 		fun unsubscribe(listener: OnHistoryChangeListener) {
-			listeners += listener
+			listeners -= listener
 		}
 
 		private suspend fun notifyHistoryChanged() {

app/src/main/java/org/koitharu/kotatsu/domain/tracking/TrackingRepository.kt

@@ -1,11 +1,13 @@
 package org.koitharu.kotatsu.domain.tracking
 
+import androidx.room.withTransaction
 import org.koin.core.KoinComponent
 import org.koin.core.inject
 import org.koitharu.kotatsu.core.db.MangaDatabase
 import org.koitharu.kotatsu.core.db.entity.TrackEntity
-import org.koitharu.kotatsu.core.model.Manga
+import org.koitharu.kotatsu.core.db.entity.TrackLogEntity
-import org.koitharu.kotatsu.core.model.MangaTracking
+import org.koitharu.kotatsu.core.model.*
+import org.koitharu.kotatsu.domain.MangaProviderFactory
 import java.util.*
 
 class TrackingRepository : KoinComponent {
@@ -20,12 +22,16 @@ class TrackingRepository : KoinComponent {
 	suspend fun getAllTracks(): List<MangaTracking> {
 		val favourites = db.favouritesDao.findAllManga()
 		val history = db.historyDao.findAllManga()
-		val manga = (favourites + history).distinctBy { it.id }
+		val mangas = (favourites + history).distinctBy { it.id }
 		val tracks = db.tracksDao.findAll().groupBy { it.mangaId }
-		return manga.map { m ->
+		return mangas.mapNotNull { me ->
-			val track = tracks[m.id]?.singleOrNull()
+			var manga = me.toManga()
+			if (manga.source == MangaSource.LOCAL) {
+				manga = MangaProviderFactory.createLocal().getRemoteManga(manga) ?: return@mapNotNull null
+			}
+			val track = tracks[manga.id]?.singleOrNull()
 			MangaTracking(
-				manga = m.toManga(),
+				manga = manga,
 				knownChaptersCount = track?.totalChapters ?: -1,
 				lastChapterId = track?.lastChapterId ?: 0L,
 				lastNotifiedChapterId = track?.lastNotifiedChapterId ?: 0L,
@@ -34,22 +40,50 @@ class TrackingRepository : KoinComponent {
 		}
 	}
 
+	suspend fun getTrackingLog(offset: Int, limit: Int): List<TrackingLogItem> {
+		return db.trackLogsDao.findAll(offset, limit).map { x ->
+			x.toTrackingLogItem()
+		}
+	}
+
+	suspend fun count() = db.trackLogsDao.count()
+
+	suspend fun clearLogs() = db.trackLogsDao.clear()
+
+	suspend fun cleanup() {
+		db.withTransaction {
+			db.tracksDao.cleanup()
+			db.trackLogsDao.cleanup()
+		}
+	}
+
 	suspend fun storeTrackResult(
 		mangaId: Long,
 		knownChaptersCount: Int,
 		lastChapterId: Long,
-		newChapters: Int,
+		newChapters: List<MangaChapter>,
-		lastNotifiedChapterId: Long
+		previousTrackChapterId: Long
 	) {
-		val entity = TrackEntity(
+		db.withTransaction {
-			mangaId = mangaId,
+			val entity = TrackEntity(
-			newChapters = newChapters,
+				mangaId = mangaId,
-			lastCheck = System.currentTimeMillis(),
+				newChapters = newChapters.size,
-			lastChapterId = lastChapterId,
+				lastCheck = System.currentTimeMillis(),
-			totalChapters = knownChaptersCount,
+				lastChapterId = lastChapterId,
-			lastNotifiedChapterId = lastNotifiedChapterId
+				totalChapters = knownChaptersCount,
-		)
+				lastNotifiedChapterId = newChapters.lastOrNull()?.id ?: previousTrackChapterId
-		db.tracksDao.upsert(entity)
+			)
+			db.tracksDao.upsert(entity)
+			val foundChapters = newChapters.takeLastWhile { x -> x.id != previousTrackChapterId }
+			if (foundChapters.isNotEmpty()) {
+				val logEntity = TrackLogEntity(
+					mangaId = mangaId,
+					chapters = foundChapters.joinToString("\n") { x -> x.name },
+					createdAt = System.currentTimeMillis()
+				)
+				db.trackLogsDao.insert(logEntity)
+			}
+		}
 	}
 
 	suspend fun upsert(manga: Manga) {

app/src/main/java/org/koitharu/kotatsu/ui/browser/BrowserActivity.kt

@@ -29,7 +29,7 @@ class BrowserActivity : BaseActivity(), BrowserCallback {
 		webView.webViewClient = BrowserClient(this)
 		val url = intent?.dataString
 		if (url.isNullOrEmpty()) {
-			finish()
+			finishAfterTransition()
 		} else {
 			webView.loadUrl(url)
 		}
@@ -43,7 +43,7 @@ class BrowserActivity : BaseActivity(), BrowserCallback {
 	override fun onOptionsItemSelected(item: MenuItem): Boolean = when (item.itemId) {
 		android.R.id.home -> {
 			webView.stopLoading()
-			finish()
+			finishAfterTransition()
 			true
 		}
 		R.id.action_browser -> {

app/src/main/java/org/koitharu/kotatsu/ui/common/AlertDialogFragment.kt

@@ -5,7 +5,7 @@ import android.os.Bundle
 import android.view.View
 import androidx.annotation.LayoutRes
 import androidx.appcompat.app.AlertDialog
-import androidx.fragment.app.DialogFragment
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import moxy.MvpAppCompatDialogFragment
 
 abstract class AlertDialogFragment(@LayoutRes private val layoutResId: Int) : MvpAppCompatDialogFragment() {
@@ -18,7 +18,7 @@ abstract class AlertDialogFragment(@LayoutRes private val layoutResId: Int) : Mv
 		if (view != null) {
 			onViewCreated(view, savedInstanceState)
 		}
-		return AlertDialog.Builder(requireContext(), theme)
+		return MaterialAlertDialogBuilder(requireContext(), theme)
 			.setView(view)
 			.also(::onBuildDialog)
 			.create()

app/src/main/java/org/koitharu/kotatsu/ui/common/BaseActivity.kt

@@ -1,12 +1,10 @@
 package org.koitharu.kotatsu.ui.common
 
-import android.view.KeyEvent
 import android.view.MenuItem
 import android.view.View
 import androidx.appcompat.widget.Toolbar
 import moxy.MvpAppCompatActivity
 import org.koin.core.KoinComponent
-import org.koitharu.kotatsu.BuildConfig
 import org.koitharu.kotatsu.R
 
 abstract class BaseActivity : MvpAppCompatActivity(), KoinComponent {
@@ -29,13 +27,4 @@ abstract class BaseActivity : MvpAppCompatActivity(), KoinComponent {
 		onBackPressed()
 		true
 	} else super.onOptionsItemSelected(item)
-
-	override fun onKeyDown(keyCode: Int, event: KeyEvent?): Boolean {
-		//TODO remove. Just for testing
-		if (BuildConfig.DEBUG && keyCode == KeyEvent.KEYCODE_VOLUME_UP) {
-			recreate()
-			return true
-		}
-		return super.onKeyDown(keyCode, event)
-	}
 }

app/src/main/java/org/koitharu/kotatsu/ui/common/ChipsFactory.kt

@@ -6,7 +6,7 @@ import androidx.annotation.DrawableRes
 import com.google.android.material.chip.Chip
 import org.koitharu.kotatsu.utils.ext.getThemeColor
 
-class ChipsFactory(private val context: Context) {
+class ChipsFactory(val context: Context) {
 
 	fun create(convertView: Chip? = null, text: CharSequence, @DrawableRes iconRes: Int = 0,
 			   tag: Any? = null, onClickListener: View.OnClickListener? = null): Chip {

app/src/main/java/org/koitharu/kotatsu/ui/common/SharedPresenterHolder.kt

@@ -0,0 +1,25 @@
+package org.koitharu.kotatsu.ui.common
+
+import android.util.ArrayMap
+import moxy.MvpPresenter
+import java.lang.ref.WeakReference
+
+abstract class SharedPresenterHolder<T : MvpPresenter<*>> {
+
+	private val cache = ArrayMap<Int, WeakReference<T>>(3)
+
+	fun getInstance(key: Int): T {
+		var instance = cache[key]?.get()
+		if (instance == null) {
+			instance = onCreatePresenter(key)
+			cache[key] = WeakReference(instance)
+		}
+		return instance
+	}
+
+	fun clear(key: Int) {
+		cache.remove(key)
+	}
+
+	protected abstract fun onCreatePresenter(key: Int): T
+}

app/src/main/java/org/koitharu/kotatsu/ui/common/dialog/CheckBoxAlertDialog.kt

@@ -8,6 +8,7 @@ import androidx.annotation.DrawableRes
 import androidx.annotation.StringRes
 import androidx.appcompat.app.AlertDialog
 import com.google.android.material.checkbox.MaterialCheckBox
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import org.koitharu.kotatsu.R
 
 class CheckBoxAlertDialog private constructor(private val delegate: AlertDialog) :
@@ -22,7 +23,7 @@ class CheckBoxAlertDialog private constructor(private val delegate: AlertDialog)
 			.inflate(R.layout.dialog_checkbox, null, false)
 		private val checkBox = view.findViewById<MaterialCheckBox>(android.R.id.checkbox)
 
-		private val delegate = AlertDialog.Builder(context)
+		private val delegate = MaterialAlertDialogBuilder(context)
 			.setView(view)
 
 		fun setTitle(@StringRes titleResId: Int): Builder {

app/src/main/java/org/koitharu/kotatsu/ui/common/dialog/StorageSelectDialog.kt

@@ -7,6 +7,7 @@ import android.view.ViewGroup
 import android.widget.BaseAdapter
 import androidx.annotation.StringRes
 import androidx.appcompat.app.AlertDialog
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import kotlinx.android.synthetic.main.item_storage.view.*
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.parser.LocalMangaRepository
@@ -23,7 +24,7 @@ class StorageSelectDialog private constructor(private val delegate: AlertDialog)
 	class Builder(context: Context, defaultValue: File?, listener: OnStorageSelectListener) {
 
 		private val adapter = VolumesAdapter(context)
-		private val delegate = AlertDialog.Builder(context)
+		private val delegate = MaterialAlertDialogBuilder(context)
 
 		init {
 			if (adapter.isEmpty) {

app/src/main/java/org/koitharu/kotatsu/ui/common/dialog/TextInputDialog.kt

@@ -7,6 +7,7 @@ import android.text.InputFilter
 import android.view.LayoutInflater
 import androidx.annotation.StringRes
 import androidx.appcompat.app.AlertDialog
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import kotlinx.android.synthetic.main.dialog_input.view.*
 import org.koitharu.kotatsu.R
 
@@ -20,7 +21,7 @@ class TextInputDialog private constructor(private val delegate: AlertDialog) :
 		@SuppressLint("InflateParams")
 		private val view = LayoutInflater.from(context).inflate(R.layout.dialog_input, null, false)
 
-		private val delegate = AlertDialog.Builder(context)
+		private val delegate = MaterialAlertDialogBuilder(context)
 			.setView(view)
 
 		fun setTitle(@StringRes titleResId: Int): Builder {

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

@@ -87,16 +87,23 @@ abstract class BaseRecyclerAdapter<T, E>(private val onItemClickListener: OnRecy
 	final override fun getItemCount() = dataSet.size
 
 	final override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): BaseViewHolder<T, E> {
-		return onCreateViewHolder(parent).setOnItemClickListener(onItemClickListener)
+		return onCreateViewHolder(parent)
-			.also(this::onViewHolderCreated)
+	}
+
+	override fun onViewDetachedFromWindow(holder: BaseViewHolder<T, E>) {
+		holder.setOnItemClickListener(null)
+		super.onViewDetachedFromWindow(holder)
+	}
+
+	override fun onViewAttachedToWindow(holder: BaseViewHolder<T, E>) {
+		super.onViewAttachedToWindow(holder)
+		holder.setOnItemClickListener(onItemClickListener)
 	}
 
 	protected open fun onDataSetChanged() = Unit
 
 	protected abstract fun getExtra(item: T, position: Int): E
 
-	protected open fun onViewHolderCreated(holder: BaseViewHolder<T, E>) = Unit
-
 	protected abstract fun onCreateViewHolder(parent: ViewGroup): BaseViewHolder<T, E>
 
 	protected abstract fun onGetItemId(item: T): Long

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

@@ -1,6 +1,5 @@
 package org.koitharu.kotatsu.ui.common.list
 
-import android.os.Build
 import android.view.View
 import android.view.ViewGroup
 import androidx.annotation.LayoutRes
@@ -27,26 +26,29 @@ abstract class BaseViewHolder<T, E> protected constructor(view: View) :
 		onBind(data, extra)
 	}
 
-	fun requireData() = boundData ?: throw IllegalStateException("Calling requireData() before bind()")
+	fun requireData(): T {
+		return boundData ?: throw IllegalStateException("Calling requireData() before bind()")
+	}
 
-	fun setOnItemClickListener(listener: OnRecyclerItemClickListener<T>?): BaseViewHolder<T, E> {
+	fun setOnItemClickListener(listener: OnRecyclerItemClickListener<T>?) {
-		if (listener != null) {
+		val listenersAdapter = listener?.let { HolderListenersAdapter(it) }
-			itemView.setOnClickListener {
+		itemView.setOnClickListener(listenersAdapter)
-				listener.onItemClick(boundData ?: return@setOnClickListener, bindingAdapterPosition, it)
+		itemView.setOnLongClickListener(listenersAdapter)
-			}
-			itemView.setOnLongClickListener {
-				listener.onItemLongClick(boundData ?: return@setOnLongClickListener false, bindingAdapterPosition, it)
-			}
-			if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-				itemView.setOnContextClickListener {
-					listener.onItemLongClick(boundData ?: return@setOnContextClickListener false, bindingAdapterPosition, it)
-				}
-			}
-		}
-		return this
 	}
 
 	open fun onRecycled() = Unit
 
 	abstract fun onBind(data: T, extra: E)
+
+	private inner class HolderListenersAdapter(private val listener: OnRecyclerItemClickListener<T>) :
+		View.OnClickListener, View.OnLongClickListener {
+
+		override fun onClick(v: View) {
+			listener.onItemClick(boundData ?: return, bindingAdapterPosition, v)
+		}
+
+		override fun onLongClick(v: View): Boolean {
+			return listener.onItemLongClick(boundData ?: return false, bindingAdapterPosition, v)
+		}
+	}
 }

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

@@ -12,13 +12,15 @@ abstract class BoundsScrollListener(private val offsetTop: Int, private val offs
 		super.onScrolled(recyclerView, dx, dy)
 		val layoutManager = (recyclerView.layoutManager as? LinearLayoutManager) ?: return
 		val firstVisibleItemPosition = layoutManager.findFirstVisibleItemPosition()
+		if (firstVisibleItemPosition == RecyclerView.NO_POSITION) {
+			return
+		}
 		if (firstVisibleItemPosition <= offsetTop) {
 			onScrolledToStart(recyclerView)
-			return
 		}
 		val visibleItemCount = layoutManager.childCount
 		val totalItemCount = layoutManager.itemCount
-		if (visibleItemCount + firstVisibleItemPosition >= totalItemCount - offsetBottom && firstVisibleItemPosition >= 0) {
+		if (visibleItemCount + firstVisibleItemPosition >= totalItemCount - offsetBottom) {
 			onScrolledToEnd(recyclerView)
 		}
 	}

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

@@ -2,24 +2,31 @@ package org.koitharu.kotatsu.ui.common.list
 
 import androidx.recyclerview.widget.RecyclerView
 
-class PaginationScrollListener(offset: Int, private val callback: Callback) : BoundsScrollListener(0, offset) {
+class PaginationScrollListener(offset: Int, private val callback: Callback) :
+	BoundsScrollListener(0, offset) {
 
 	private var lastTotalCount = 0
 
-	override fun onScrolledToStart(recyclerView: RecyclerView)  = Unit
+	override fun onScrolledToStart(recyclerView: RecyclerView) = Unit
 
 	override fun onScrolledToEnd(recyclerView: RecyclerView) {
-		val total = recyclerView.adapter?.itemCount ?: 0
+		val total = callback.getItemsCount()
 		if (total > lastTotalCount) {
-			callback.onRequestMoreItems(total)
 			lastTotalCount = total
+			callback.onRequestMoreItems(total)
 		} else if (total < lastTotalCount) {
 			lastTotalCount = total
 		}
 	}
 
+	fun reset() {
+		lastTotalCount = 0
+	}
+
 	interface Callback {
 
 		fun onRequestMoreItems(offset: Int)
+
+		fun getItemsCount(): Int
 	}
 }

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

@@ -0,0 +1,24 @@
+package org.koitharu.kotatsu.ui.common.list
+
+import android.view.ViewGroup
+
+class ProgressBarAdapter : BaseRecyclerAdapter<Boolean, Unit>() {
+
+	var isProgressVisible: Boolean
+		get() = dataSet.isNotEmpty()
+		set(value) {
+			if (value == dataSet.isEmpty()) {
+				if (value) {
+					appendItem(true)
+				} else {
+					removeItemAt(0)
+				}
+			}
+		}
+
+	override fun getExtra(item: Boolean, position: Int) = Unit
+
+	override fun onCreateViewHolder(parent: ViewGroup) = ProgressBarHolder(parent)
+
+	override fun onGetItemId(item: Boolean) = -1L
+}

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

@@ -0,0 +1,34 @@
+package org.koitharu.kotatsu.ui.common.list
+
+import android.view.View
+import android.view.ViewGroup
+import kotlinx.android.synthetic.main.item_progress.*
+import org.koitharu.kotatsu.R
+
+class ProgressBarHolder(parent: ViewGroup) :
+	BaseViewHolder<Boolean, Unit>(parent, R.layout.item_progress) {
+
+	private var pendingVisibility: Int = View.GONE
+	private val action = Runnable {
+		progressBar?.visibility = pendingVisibility
+		pendingVisibility = View.GONE
+	}
+
+	override fun onBind(data: Boolean, extra: Unit) {
+		val visibility = if (data) {
+			View.VISIBLE
+		} else {
+			View.INVISIBLE
+		}
+		if (visibility != progressBar.visibility && visibility != pendingVisibility) {
+			progressBar.removeCallbacks(action)
+			pendingVisibility = visibility
+			progressBar.postDelayed(action, 400)
+		}
+	}
+
+	override fun onRecycled() {
+		progressBar.removeCallbacks(action)
+		super.onRecycled()
+	}
+}

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

@@ -28,14 +28,14 @@ class ChapterHolder(parent: ViewGroup) :
 			}
 			ChapterExtra.CURRENT -> {
 				textView_number.setBackgroundResource(R.drawable.bg_badge_outline_accent)
-				textView_number.setTextColor(context.getThemeColor(R.attr.colorAccent))
+				textView_number.setTextColor(context.getThemeColor(androidx.appcompat.R.attr.colorAccent))
 			}
 			ChapterExtra.NEW -> {
 				textView_number.setBackgroundResource(R.drawable.bg_badge_accent)
 				textView_number.setTextColor(context.getThemeColor(android.R.attr.textColorPrimaryInverse))
 			}
 			ChapterExtra.CHECKED -> {
-				textView_number.setBackgroundResource(R.drawable.bg_badge_accent)
+				textView_number.background = null
 				textView_number.setTextColor(Color.TRANSPARENT)
 			}
 		}

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

@@ -25,7 +25,9 @@ class ChaptersFragment : BaseFragment(R.layout.fragment_chapters), MangaDetailsV
 	OnRecyclerItemClickListener<MangaChapter>, ActionMode.Callback {
 
 	@Suppress("unused")
-	private val presenter by moxyPresenter(factory = MangaDetailsPresenter.Companion::getInstance)
+	private val presenter by moxyPresenter {
+		MangaDetailsPresenter.getInstance(activity.hashCode())
+	}
 
 	private var manga: Manga? = null
 
@@ -123,6 +125,7 @@ class ChaptersFragment : BaseFragment(R.layout.fragment_chapters), MangaDetailsV
 					manga ?: return false,
 					adapter.checkedItemsIds
 				)
+				mode.finish()
 				true
 			}
 			R.id.action_select_all -> {

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

@@ -7,11 +7,12 @@ import android.os.Bundle
 import android.view.Menu
 import android.view.MenuItem
 import android.widget.Toast
-import androidx.appcompat.app.AlertDialog
 import androidx.appcompat.view.ActionMode
+import androidx.core.content.ContextCompat
 import androidx.core.content.pm.ShortcutManagerCompat
 import androidx.core.net.toFile
 import androidx.lifecycle.lifecycleScope
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import com.google.android.material.snackbar.Snackbar
 import com.google.android.material.tabs.TabLayout
 import com.google.android.material.tabs.TabLayoutMediator
@@ -31,11 +32,14 @@ import org.koitharu.kotatsu.ui.download.DownloadService
 import org.koitharu.kotatsu.utils.MangaShortcut
 import org.koitharu.kotatsu.utils.ShareHelper
 import org.koitharu.kotatsu.utils.ext.getDisplayMessage
+import org.koitharu.kotatsu.utils.ext.getThemeColor
 
 class MangaDetailsActivity : BaseActivity(), MangaDetailsView,
 	TabLayoutMediator.TabConfigurationStrategy {
 
-	private val presenter by moxyPresenter(factory = MangaDetailsPresenter.Companion::getInstance)
+	private val presenter by moxyPresenter {
+		MangaDetailsPresenter.getInstance(hashCode())
+	}
 
 	private var manga: Manga? = null
 
@@ -50,7 +54,7 @@ class MangaDetailsActivity : BaseActivity(), MangaDetailsView,
 				presenter.loadDetails(it, true)
 			} ?: intent?.getLongExtra(EXTRA_MANGA_ID, 0)?.takeUnless { it == 0L }?.let {
 				presenter.findMangaById(it)
-			} ?: finish()
+			} ?: finishAfterTransition()
 		}
 	}
 
@@ -71,13 +75,13 @@ class MangaDetailsActivity : BaseActivity(), MangaDetailsView,
 			this, getString(R.string._s_deleted_from_local_storage, manga.title),
 			Toast.LENGTH_SHORT
 		).show()
-		finish()
+		finishAfterTransition()
 	}
 
 	override fun onError(e: Throwable) {
 		if (manga == null) {
 			Toast.makeText(this, e.getDisplayMessage(resources), Toast.LENGTH_LONG).show()
-			finish()
+			finishAfterTransition()
 		} else {
 			Snackbar.make(pager, e.getDisplayMessage(resources), Snackbar.LENGTH_LONG).show()
 		}
@@ -104,6 +108,8 @@ class MangaDetailsActivity : BaseActivity(), MangaDetailsView,
 			manga?.source != null && manga?.source != MangaSource.LOCAL
 		menu.findItem(R.id.action_delete).isVisible =
 			manga?.source == MangaSource.LOCAL
+		menu.findItem(R.id.action_browser).isVisible =
+			manga?.source != MangaSource.LOCAL
 		menu.findItem(R.id.action_shortcut).isVisible =
 			ShortcutManagerCompat.isRequestPinShortcutSupported(this)
 		return super.onPrepareOptionsMenu(menu)
@@ -122,7 +128,7 @@ class MangaDetailsActivity : BaseActivity(), MangaDetailsView,
 		}
 		R.id.action_delete -> {
 			manga?.let { m ->
-				AlertDialog.Builder(this)
+				MaterialAlertDialogBuilder(this)
 					.setTitle(R.string.delete_manga)
 					.setMessage(getString(R.string.text_delete_local_manga, m.title))
 					.setPositiveButton(R.string.delete) { _, _ ->
@@ -137,9 +143,18 @@ class MangaDetailsActivity : BaseActivity(), MangaDetailsView,
 			manga?.let {
 				val chaptersCount = it.chapters?.size ?: 0
 				if (chaptersCount > 5) {
-					AlertDialog.Builder(this)
+					MaterialAlertDialogBuilder(this)
 						.setTitle(R.string.save_manga)
-						.setMessage(getString(R.string.large_manga_save_confirm, chaptersCount))
+						.setMessage(
+							getString(
+								R.string.large_manga_save_confirm,
+								resources.getQuantityString(
+									R.plurals.chapters,
+									chaptersCount,
+									chaptersCount
+								)
+							)
+						)
 						.setNegativeButton(android.R.string.cancel, null)
 						.setPositiveButton(R.string.save) { _, _ ->
 							DownloadService.start(this, it)
@@ -174,9 +189,10 @@ class MangaDetailsActivity : BaseActivity(), MangaDetailsView,
 	}
 
 	override fun onConfigureTab(tab: TabLayout.Tab, position: Int) {
-		tab.text = when(position) {
+		tab.text = when (position) {
 			0 -> getString(R.string.details)
 			1 -> getString(R.string.chapters)
+			2 -> getString(R.string.related)
 			else -> null
 		}
 	}
@@ -184,11 +200,13 @@ class MangaDetailsActivity : BaseActivity(), MangaDetailsView,
 	override fun onSupportActionModeStarted(mode: ActionMode) {
 		super.onSupportActionModeStarted(mode)
 		pager.isUserInputEnabled = false
+		window?.statusBarColor = ContextCompat.getColor(this, R.color.grey_dark)
 	}
 
 	override fun onSupportActionModeFinished(mode: ActionMode) {
 		super.onSupportActionModeFinished(mode)
 		pager.isUserInputEnabled = true
+		window?.statusBarColor = getThemeColor(androidx.appcompat.R.attr.colorPrimaryDark)
 	}
 
 	companion object {

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

@@ -6,11 +6,12 @@ import androidx.viewpager2.adapter.FragmentStateAdapter
 
 class MangaDetailsAdapter(activity: FragmentActivity) : FragmentStateAdapter(activity) {
 
-	override fun getItemCount() = 2
+	override fun getItemCount() = 3
 
 	override fun createFragment(position: Int): Fragment = when(position) {
 		0 -> MangaDetailsFragment()
 		1 -> ChaptersFragment()
+		2 -> RelatedMangaFragment()
 		else -> throw IndexOutOfBoundsException("No fragment for position $position")
 	}
 }

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

@@ -2,23 +2,30 @@ package org.koitharu.kotatsu.ui.details
 
 import android.text.Spanned
 import android.view.View
+import androidx.core.net.toUri
 import androidx.core.text.parseAsHtml
 import androidx.core.view.isVisible
-import coil.api.load
+import androidx.lifecycle.lifecycleScope
+import coil.load
 import com.google.android.material.chip.Chip
 import kotlinx.android.synthetic.main.fragment_details.*
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 import moxy.ktx.moxyPresenter
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.model.FavouriteCategory
 import org.koitharu.kotatsu.core.model.Manga
 import org.koitharu.kotatsu.core.model.MangaHistory
 import org.koitharu.kotatsu.ui.common.BaseFragment
-import org.koitharu.kotatsu.ui.main.list.favourites.categories.select.FavouriteCategoriesDialog
+import org.koitharu.kotatsu.ui.list.favourites.categories.select.FavouriteCategoriesDialog
 import org.koitharu.kotatsu.ui.reader.ReaderActivity
 import org.koitharu.kotatsu.ui.search.MangaSearchSheet
+import org.koitharu.kotatsu.utils.FileSizeUtils
 import org.koitharu.kotatsu.utils.ext.addChips
 import org.koitharu.kotatsu.utils.ext.showPopupMenu
 import org.koitharu.kotatsu.utils.ext.textAndVisible
+import org.koitharu.kotatsu.utils.ext.toFileOrNull
 import kotlin.math.roundToInt
 
 class MangaDetailsFragment : BaseFragment(R.layout.fragment_details), MangaDetailsView,
@@ -26,7 +33,9 @@ class MangaDetailsFragment : BaseFragment(R.layout.fragment_details), MangaDetai
 	View.OnLongClickListener {
 
 	@Suppress("unused")
-	private val presenter by moxyPresenter(factory = MangaDetailsPresenter.Companion::getInstance)
+	private val presenter by moxyPresenter {
+		MangaDetailsPresenter.getInstance(activity.hashCode())
+	}
 
 	private var manga: Manga? = null
 	private var history: MangaHistory? = null
@@ -67,6 +76,21 @@ class MangaDetailsFragment : BaseFragment(R.layout.fragment_details), MangaDetai
 				onClickListener = this@MangaDetailsFragment
 			)
 		}
+		manga.url.toUri().toFileOrNull()?.let { f ->
+			lifecycleScope.launch {
+				val size = withContext(Dispatchers.IO) {
+					f.length()
+				}
+				chips_tags.addChips(listOf(f)) {
+					create(
+						text = FileSizeUtils.formatBytes(context, size),
+						iconRes = R.drawable.ic_chip_storage,
+						tag = it,
+						onClickListener = this@MangaDetailsFragment
+					)
+				}
+			}
+		}
 		imageView_favourite.setOnClickListener(this)
 		button_read.setOnClickListener(this)
 		button_read.setOnLongClickListener(this)
@@ -123,8 +147,8 @@ class MangaDetailsFragment : BaseFragment(R.layout.fragment_details), MangaDetai
 	}
 
 	override fun onLongClick(v: View): Boolean {
-		when {
+		when (v.id) {
-			v.id == R.id.button_read -> {
+			R.id.button_read -> {
 				if (history == null) {
 					return false
 				}

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

@@ -2,6 +2,7 @@ package org.koitharu.kotatsu.ui.details
 
 import kotlinx.coroutines.CancellationException
 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.*
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import moxy.InjectViewState
@@ -13,23 +14,25 @@ import org.koitharu.kotatsu.core.model.MangaSource
 import org.koitharu.kotatsu.core.parser.LocalMangaRepository
 import org.koitharu.kotatsu.domain.MangaDataRepository
 import org.koitharu.kotatsu.domain.MangaProviderFactory
+import org.koitharu.kotatsu.domain.MangaSearchRepository
 import org.koitharu.kotatsu.domain.favourites.FavouritesRepository
 import org.koitharu.kotatsu.domain.favourites.OnFavouritesChangeListener
 import org.koitharu.kotatsu.domain.history.HistoryRepository
 import org.koitharu.kotatsu.domain.history.OnHistoryChangeListener
 import org.koitharu.kotatsu.domain.tracking.TrackingRepository
 import org.koitharu.kotatsu.ui.common.BasePresenter
+import org.koitharu.kotatsu.ui.common.SharedPresenterHolder
 import org.koitharu.kotatsu.utils.ext.safe
 import java.io.IOException
 
 @InjectViewState
-class MangaDetailsPresenter private constructor() : BasePresenter<MangaDetailsView>(),
+class MangaDetailsPresenter private constructor(private val key: Int) :
-	OnHistoryChangeListener,
+	BasePresenter<MangaDetailsView>(), OnHistoryChangeListener, OnFavouritesChangeListener {
-	OnFavouritesChangeListener {
 
 	private lateinit var historyRepository: HistoryRepository
 	private lateinit var favouritesRepository: FavouritesRepository
 	private lateinit var trackingRepository: TrackingRepository
+	private lateinit var searchRepository: MangaSearchRepository
 
 	private var manga: Manga? = null
 
@@ -37,6 +40,7 @@ class MangaDetailsPresenter private constructor() : BasePresenter<MangaDetailsVi
 		historyRepository = HistoryRepository()
 		favouritesRepository = FavouritesRepository()
 		trackingRepository = TrackingRepository()
+		searchRepository = MangaSearchRepository()
 		super.onFirstViewAttach()
 		HistoryRepository.subscribe(this)
 		FavouritesRepository.subscribe(this)
@@ -51,7 +55,7 @@ class MangaDetailsPresenter private constructor() : BasePresenter<MangaDetailsVi
 				} ?: throw MangaNotFoundException("Cannot find manga by id")
 				viewState.onMangaUpdated(manga)
 				loadDetails(manga, true)
-			} catch (_: CancellationException){
+			} catch (_: CancellationException) {
 			} catch (e: Throwable) {
 				if (BuildConfig.DEBUG) {
 					e.printStackTrace()
@@ -79,7 +83,7 @@ class MangaDetailsPresenter private constructor() : BasePresenter<MangaDetailsVi
 				viewState.onMangaUpdated(data)
 				this@MangaDetailsPresenter.manga = data
 				viewState.onNewChaptersChanged(trackingRepository.getNewChaptersCount(manga.id))
-			} catch (_: CancellationException){
+			} catch (_: CancellationException) {
 			} catch (e: Throwable) {
 				if (BuildConfig.DEBUG) {
 					e.printStackTrace()
@@ -147,6 +151,38 @@ class MangaDetailsPresenter private constructor() : BasePresenter<MangaDetailsVi
 		}
 	}
 
+	fun loadRelated() {
+		val manga = this.manga ?: return
+		presenterScope.launch {
+			viewState.onLoadingStateChanged(isLoading = true)
+			var isFirstCall = true
+			searchRepository.globalSearch(manga.title)
+				.map { list ->
+					list.filter { x -> x.id != manga.id }
+				}.filterNot { x -> x.isEmpty() }
+				.flowOn(Dispatchers.IO)
+				.catch { e ->
+					if (e is IOException) {
+						viewState.onError(e)
+					}
+				}
+				.onEmpty {
+					viewState.onListChanged(emptyList())
+					viewState.onLoadingStateChanged(isLoading = false)
+				}.onCompletion {
+					viewState.onListAppended(emptyList())
+				}.collect {
+					if (isFirstCall) {
+						isFirstCall = false
+						viewState.onListChanged(it)
+						viewState.onLoadingStateChanged(isLoading = false)
+					} else {
+						viewState.onListAppended(it)
+					}
+				}
+		}
+	}
+
 	override fun onHistoryChanged() {
 		loadHistory(manga ?: return)
 	}
@@ -157,21 +193,17 @@ class MangaDetailsPresenter private constructor() : BasePresenter<MangaDetailsVi
 		}
 	}
 
+	override fun onCategoriesChanged() = Unit
+
 	override fun onDestroy() {
 		HistoryRepository.unsubscribe(this)
 		FavouritesRepository.unsubscribe(this)
-		instance = null
+		clear(key)
 		super.onDestroy()
 	}
 
-	companion object {
+	companion object Holder : SharedPresenterHolder<MangaDetailsPresenter>() {
 
-		private var instance: MangaDetailsPresenter? = null
+		override fun onCreatePresenter(key: Int) = MangaDetailsPresenter(key)
-
-		fun getInstance(): MangaDetailsPresenter = instance ?: synchronized(this) {
-			MangaDetailsPresenter().also {
-				instance = it
-			}
-		}
 	}
 }

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

@@ -1,5 +1,8 @@
 package org.koitharu.kotatsu.ui.details
 
+import moxy.viewstate.strategy.AddToEndSingleTagStrategy
+import moxy.viewstate.strategy.AddToEndStrategy
+import moxy.viewstate.strategy.StateStrategyType
 import moxy.viewstate.strategy.alias.AddToEndSingle
 import moxy.viewstate.strategy.alias.SingleState
 import org.koitharu.kotatsu.core.model.FavouriteCategory
@@ -23,4 +26,13 @@ interface MangaDetailsView : BaseMvpView {
 
 	@AddToEndSingle
 	fun onNewChaptersChanged(newChapters: Int)
+
+	@StateStrategyType(AddToEndSingleTagStrategy::class, tag = "content")
+	fun onListChanged(list: List<Manga>) = Unit
+
+	@StateStrategyType(AddToEndStrategy::class, tag = "content")
+	fun onListAppended(list: List<Manga>) = Unit
+
+	@StateStrategyType(AddToEndSingleTagStrategy::class, tag = "content")
+	fun onListError(e: Throwable) = Unit
 }

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

@@ -0,0 +1,43 @@
+package org.koitharu.kotatsu.ui.details
+
+import android.os.Bundle
+import android.view.View
+import moxy.ktx.moxyPresenter
+import org.koitharu.kotatsu.core.model.FavouriteCategory
+import org.koitharu.kotatsu.core.model.Manga
+import org.koitharu.kotatsu.core.model.MangaHistory
+import org.koitharu.kotatsu.ui.list.MangaListFragment
+
+class RelatedMangaFragment : MangaListFragment<Unit>(), MangaDetailsView {
+
+	private val presenter by moxyPresenter {
+		MangaDetailsPresenter.getInstance(activity.hashCode())
+	}
+
+	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+		super.onViewCreated(view, savedInstanceState)
+		isSwipeRefreshEnabled = false
+	}
+
+	override fun onRequestMoreItems(offset: Int) {
+		if (offset == 0) {
+			presenter.loadRelated()
+		}
+	}
+
+	override fun onMangaUpdated(manga: Manga) = Unit
+
+	override fun onHistoryChanged(history: MangaHistory?) = Unit
+
+	override fun onFavouriteChanged(categories: List<FavouriteCategory>) = Unit
+
+	override fun onMangaRemoved(manga: Manga) = Unit
+
+	override fun onNewChaptersChanged(newChapters: Int) = Unit
+
+	override fun onListChanged(list: List<Manga>) = super<MangaListFragment>.onListChanged(list)
+
+	override fun onListAppended(list: List<Manga>) = super<MangaListFragment>.onListAppended(list)
+
+	override fun onListError(e: Throwable) = super<MangaListFragment>.onListError(e)
+}

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

@@ -13,7 +13,6 @@ import androidx.core.graphics.drawable.toBitmap
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.model.Manga
 import org.koitharu.kotatsu.ui.details.MangaDetailsActivity
-import org.koitharu.kotatsu.utils.ext.clearActions
 import org.koitharu.kotatsu.utils.ext.getDisplayMessage
 import kotlin.math.roundToInt
 
@@ -92,6 +91,11 @@ class DownloadNotification(private val context: Context) {
 		builder.setCategory(NotificationCompat.CATEGORY_PROGRESS)
 	}
 
+	fun setWaitingForNetwork() {
+		builder.setProgress(0, 0, false)
+		builder.setContentText(context.getString(R.string.waiting_for_network))
+	}
+
 	fun setPostProcessing() {
 		builder.setProgress(1, 0, true)
 		builder.setContentText(context.getString(R.string.processing_))

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

@@ -8,11 +8,12 @@ import android.webkit.MimeTypeMap
 import android.widget.Toast
 import androidx.core.content.ContextCompat
 import coil.Coil
-import coil.request.GetRequestBuilder
+import coil.request.ImageRequest
 import kotlinx.coroutines.*
 import kotlinx.coroutines.sync.Mutex
 import okhttp3.OkHttpClient
 import okhttp3.Request
+import okio.IOException
 import org.koin.android.ext.android.inject
 import org.koitharu.kotatsu.BuildConfig
 import org.koitharu.kotatsu.R
@@ -24,10 +25,7 @@ import org.koitharu.kotatsu.domain.local.MangaZip
 import org.koitharu.kotatsu.ui.common.BaseService
 import org.koitharu.kotatsu.ui.common.dialog.CheckBoxAlertDialog
 import org.koitharu.kotatsu.utils.CacheUtils
-import org.koitharu.kotatsu.utils.ext.await
+import org.koitharu.kotatsu.utils.ext.*
-import org.koitharu.kotatsu.utils.ext.retryUntilSuccess
-import org.koitharu.kotatsu.utils.ext.safe
-import org.koitharu.kotatsu.utils.ext.sub
 import java.io.File
 import java.util.concurrent.TimeUnit
 import kotlin.collections.set
@@ -37,6 +35,7 @@ class DownloadService : BaseService() {
 
 	private lateinit var notification: DownloadNotification
 	private lateinit var wakeLock: PowerManager.WakeLock
+	private lateinit var connectivityManager: ConnectivityManager
 
 	private val okHttp by inject<OkHttpClient>()
 	private val cache by inject<PagesCache>()
@@ -47,6 +46,7 @@ class DownloadService : BaseService() {
 	override fun onCreate() {
 		super.onCreate()
 		notification = DownloadNotification(this)
+		connectivityManager = getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
 		wakeLock = (getSystemService(Context.POWER_SERVICE) as PowerManager)
 			.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "kotatsu:downloading")
 	}
@@ -76,10 +76,10 @@ class DownloadService : BaseService() {
 	private fun downloadManga(manga: Manga, chaptersIds: Set<Long>?, startId: Int): Job {
 		return launch(Dispatchers.IO) {
 			mutex.lock()
-			wakeLock.acquire(TimeUnit.MINUTES.toMillis(20))
+			wakeLock.acquire(TimeUnit.HOURS.toMillis(1))
+			notification.fillFrom(manga)
+			notification.setCancelId(startId)
 			withContext(Dispatchers.Main) {
-				notification.fillFrom(manga)
-				notification.setCancelId(startId)
 				startForeground(DownloadNotification.NOTIFICATION_ID, notification())
 			}
 			val destination = settings.getStorageDir(this@DownloadService)
@@ -88,14 +88,14 @@ class DownloadService : BaseService() {
 			try {
 				val repo = MangaProviderFactory.create(manga.source)
 				val cover = safe {
-					Coil.execute(GetRequestBuilder(this@DownloadService)
+					Coil.execute(
-						.data(manga.coverUrl)
+						ImageRequest.Builder(this@DownloadService)
-						.build()).drawable
+							.data(manga.coverUrl)
-				}
+							.build()
-				withContext(Dispatchers.Main) {
+					).drawable
-					notification.setLargeIcon(cover)
-					notification.update()
 				}
+				notification.setLargeIcon(cover)
+				notification.update()
 				val data = if (manga.chapters == null) repo.getDetails(manga) else manga
 				output = MangaZip.findInDir(destination, data)
 				output.prepare(data)
@@ -112,51 +112,52 @@ class DownloadService : BaseService() {
 					if (chaptersIds == null || chapter.id in chaptersIds) {
 						val pages = repo.getPages(chapter)
 						for ((pageIndex, page) in pages.withIndex()) {
-							val url = repo.getPageFullUrl(page)
+							failsafe@ do {
-							val file = cache[url] ?: downloadPage(url, destination)
+								try {
-							output.addPage(
+									val url = repo.getPageFullUrl(page)
-								chapter,
+									val file = cache[url] ?: downloadPage(url, destination)
-								file,
+									output.addPage(
-								pageIndex,
+										chapter,
-								MimeTypeMap.getFileExtensionFromUrl(url)
+										file,
+										pageIndex,
+										MimeTypeMap.getFileExtensionFromUrl(url)
+									)
+								} catch (e: IOException) {
+									notification.setWaitingForNetwork()
+									notification.update()
+									connectivityManager.waitForNetwork()
+									continue@failsafe
+								}
+							} while (false)
+							notification.setProgress(
+								chapters.size,
+								pages.size,
+								chapterIndex,
+								pageIndex
 							)
-							withContext(Dispatchers.Main) {
+							notification.update()
-								notification.setProgress(
-									chapters.size,
-									pages.size,
-									chapterIndex,
-									pageIndex
-								)
-								notification.update()
-							}
 						}
 					}
 				}
-				withContext(Dispatchers.Main) {
+				notification.setCancelId(0)
-					notification.setCancelId(0)
+				notification.setPostProcessing()
-					notification.setPostProcessing()
+				notification.update()
-					notification.update()
-				}
 				output.compress()
 				val result = MangaProviderFactory.createLocal().getFromFile(output.file)
-				withContext(Dispatchers.Main) {
+				notification.setDone(result)
-					notification.setDone(result)
+				notification.dismiss()
-					notification.dismiss()
+				notification.update(manga.id.toInt().absoluteValue)
-					notification.update(manga.id.toInt().absoluteValue)
-				}
 			} catch (_: CancellationException) {
-				withContext(Dispatchers.Main + NonCancellable) {
+				withContext(NonCancellable) {
 					notification.setCancelling()
 					notification.setCancelId(0)
 					notification.update()
 				}
 			} catch (e: Throwable) {
-				withContext(Dispatchers.Main) {
+				notification.setError(e)
-					notification.setError(e)
+				notification.setCancelId(0)
-					notification.setCancelId(0)
+				notification.dismiss()
-					notification.dismiss()
+				notification.update(manga.id.toInt().absoluteValue)
-					notification.update(manga.id.toInt().absoluteValue)
-				}
 			} finally {
 				withContext(NonCancellable) {
 					jobs.remove(startId)
@@ -167,7 +168,9 @@ class DownloadService : BaseService() {
 						notification.dismiss()
 						stopSelf(startId)
 					}
-					wakeLock.release()
+					if (wakeLock.isHeld) {
+						wakeLock.release()
+					}
 					mutex.unlock()
 				}
 			}

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

@@ -1,4 +1,4 @@
-package org.koitharu.kotatsu.ui.main.list
+package org.koitharu.kotatsu.ui.list
 
 import android.os.Bundle
 import android.view.View
@@ -55,6 +55,9 @@ class ListModeSelectDialog : AlertDialogFragment(R.layout.dialog_list_mode), Vie
 
 		private const val TAG = "ListModeSelectDialog"
 
-		fun show(fm: FragmentManager) = ListModeSelectDialog().show(fm, TAG)
+		fun show(fm: FragmentManager) = ListModeSelectDialog()
+			.show(fm,
+				TAG
+			)
 	}
 }

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

@@ -1,4 +1,4 @@
-package org.koitharu.kotatsu.ui.main
+package org.koitharu.kotatsu.ui.list
 
 import android.app.ActivityOptions
 import android.content.SharedPreferences
@@ -11,7 +11,6 @@ import android.view.Menu
 import android.view.MenuItem
 import androidx.appcompat.app.ActionBarDrawerToggle
 import androidx.core.view.isVisible
-import androidx.core.view.postDelayed
 import androidx.fragment.app.Fragment
 import androidx.swiperefreshlayout.widget.CircularProgressDrawable
 import com.google.android.material.navigation.NavigationView
@@ -21,20 +20,24 @@ import moxy.ktx.moxyPresenter
 import org.koin.core.inject
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.model.MangaSource
+import org.koitharu.kotatsu.core.prefs.AppSection
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.domain.MangaProviderFactory
 import org.koitharu.kotatsu.ui.common.BaseActivity
-import org.koitharu.kotatsu.ui.main.list.favourites.FavouritesListFragment
+import org.koitharu.kotatsu.ui.list.favourites.FavouritesContainerFragment
-import org.koitharu.kotatsu.ui.main.list.history.HistoryListFragment
+import org.koitharu.kotatsu.ui.list.feed.FeedFragment
-import org.koitharu.kotatsu.ui.main.list.local.LocalListFragment
+import org.koitharu.kotatsu.ui.list.history.HistoryListFragment
-import org.koitharu.kotatsu.ui.main.list.remote.RemoteListFragment
+import org.koitharu.kotatsu.ui.list.local.LocalListFragment
+import org.koitharu.kotatsu.ui.list.remote.RemoteListFragment
 import org.koitharu.kotatsu.ui.reader.ReaderActivity
 import org.koitharu.kotatsu.ui.reader.ReaderState
-import org.koitharu.kotatsu.ui.settings.AppUpdateService
+import org.koitharu.kotatsu.ui.search.SearchHelper
+import org.koitharu.kotatsu.ui.settings.AppUpdateChecker
 import org.koitharu.kotatsu.ui.settings.SettingsActivity
 import org.koitharu.kotatsu.ui.tracker.TrackWorker
 import org.koitharu.kotatsu.utils.ext.getDisplayMessage
 import org.koitharu.kotatsu.utils.ext.resolveDp
+import java.io.Closeable
 
 class MainActivity : BaseActivity(), NavigationView.OnNavigationItemSelectedListener,
 	SharedPreferences.OnSharedPreferenceChangeListener, MainView {
@@ -43,6 +46,7 @@ class MainActivity : BaseActivity(), NavigationView.OnNavigationItemSelectedList
 
 	private val settings by inject<AppSettings>()
 	private lateinit var drawerToggle: ActionBarDrawerToggle
+	private var closeable: Closeable? = null
 
 	override fun onCreate(savedInstanceState: Bundle?) {
 		super.onCreate(savedInstanceState)
@@ -65,16 +69,14 @@ class MainActivity : BaseActivity(), NavigationView.OnNavigationItemSelectedList
 		supportFragmentManager.findFragmentById(R.id.container)?.let {
 			fab.isVisible = it is HistoryListFragment
 		} ?: run {
-			navigationView.setCheckedItem(R.id.nav_history)
+			openDefaultSection()
-			setPrimaryFragment(HistoryListFragment.newInstance())
-		}
-		drawer.postDelayed(2000) {
-			AppUpdateService.startIfRequired(applicationContext)
 		}
 		TrackWorker.setup(applicationContext)
+		AppUpdateChecker(this).invoke()
 	}
 
 	override fun onDestroy() {
+		closeable?.close()
 		settings.unsubscribe(this)
 		super.onDestroy()
 	}
@@ -90,8 +92,19 @@ class MainActivity : BaseActivity(), NavigationView.OnNavigationItemSelectedList
 		drawerToggle.onConfigurationChanged(newConfig)
 	}
 
-	override fun onCreateOptionsMenu(menu: Menu?): Boolean {
+	override fun onBackPressed() {
+		if (drawer.isDrawerOpen(navigationView)) {
+			drawer.closeDrawer(navigationView)
+		} else {
+			super.onBackPressed()
+		}
+	}
+
+	override fun onCreateOptionsMenu(menu: Menu): Boolean {
 		menuInflater.inflate(R.menu.opt_main, menu)
+		menu.findItem(R.id.action_search)?.let { menuItem ->
+			closeable = SearchHelper.setupSearchView(menuItem)
+		}
 		return super.onCreateOptionsMenu(menu)
 	}
 
@@ -106,9 +119,22 @@ class MainActivity : BaseActivity(), NavigationView.OnNavigationItemSelectedList
 			val source = MangaSource.values().getOrNull(item.itemId) ?: return false
 			setPrimaryFragment(RemoteListFragment.newInstance(source))
 		} else when (item.itemId) {
-			R.id.nav_history -> setPrimaryFragment(HistoryListFragment.newInstance())
+			R.id.nav_history -> {
-			R.id.nav_favourites -> setPrimaryFragment(FavouritesListFragment.newInstance())
+				settings.defaultSection = AppSection.HISTORY
-			R.id.nav_local_storage -> setPrimaryFragment(LocalListFragment.newInstance())
+				setPrimaryFragment(HistoryListFragment.newInstance())
+			}
+			R.id.nav_favourites -> {
+				settings.defaultSection = AppSection.FAVOURITES
+				setPrimaryFragment(FavouritesContainerFragment.newInstance())
+			}
+			R.id.nav_local_storage -> {
+				settings.defaultSection = AppSection.LOCAL
+				setPrimaryFragment(LocalListFragment.newInstance())
+			}
+			R.id.nav_feed -> {
+				settings.defaultSection = AppSection.FEED
+				setPrimaryFragment(FeedFragment.newInstance())
+			}
 			R.id.nav_action_settings -> {
 				startActivity(SettingsActivity.newIntent(this))
 				return true
@@ -167,6 +193,27 @@ class MainActivity : BaseActivity(), NavigationView.OnNavigationItemSelectedList
 		}
 	}
 
+	private fun openDefaultSection() {
+		when(settings.defaultSection) {
+			AppSection.LOCAL -> {
+				navigationView.setCheckedItem(R.id.nav_local_storage)
+				setPrimaryFragment(LocalListFragment.newInstance())
+			}
+			AppSection.FAVOURITES -> {
+				navigationView.setCheckedItem(R.id.nav_favourites)
+				setPrimaryFragment(FavouritesContainerFragment.newInstance())
+			}
+			AppSection.HISTORY -> {
+				navigationView.setCheckedItem(R.id.nav_history)
+				setPrimaryFragment(HistoryListFragment.newInstance())
+			}
+			AppSection.FEED -> {
+				navigationView.setCheckedItem(R.id.nav_feed)
+				setPrimaryFragment(FeedFragment.newInstance())
+			}
+		}
+	}
+
 	private fun setPrimaryFragment(fragment: Fragment) {
 		supportFragmentManager.beginTransaction()
 			.replace(R.id.container, fragment)

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

@@ -1,4 +1,4 @@
-package org.koitharu.kotatsu.ui.main
+package org.koitharu.kotatsu.ui.list
 
 import kotlinx.coroutines.CancellationException
 import kotlinx.coroutines.Dispatchers

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

@@ -1,7 +1,6 @@
-package org.koitharu.kotatsu.ui.main
+package org.koitharu.kotatsu.ui.list
 
 import moxy.viewstate.strategy.alias.OneExecution
-import org.koitharu.kotatsu.core.model.MangaState
 import org.koitharu.kotatsu.ui.common.BaseMvpView
 import org.koitharu.kotatsu.ui.reader.ReaderState
 

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

@@ -1,8 +1,8 @@
-package org.koitharu.kotatsu.ui.main.list
+package org.koitharu.kotatsu.ui.list
 
 import android.view.ViewGroup
-import coil.api.clear
+import coil.clear
-import coil.api.load
+import coil.load
 import kotlinx.android.synthetic.main.item_manga_grid.*
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.model.Manga

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

@@ -1,4 +1,4 @@
-package org.koitharu.kotatsu.ui.main.list
+package org.koitharu.kotatsu.ui.list
 
 import android.view.ViewGroup
 import org.koitharu.kotatsu.core.model.Manga
@@ -14,7 +14,9 @@ class MangaListAdapter(onItemClickListener: OnRecyclerItemClickListener<Manga>)
 
 	override fun onCreateViewHolder(parent: ViewGroup) = when(listMode) {
 		ListMode.LIST -> MangaListHolder(parent)
-		ListMode.DETAILED_LIST -> MangaListDetailsHolder(parent)
+		ListMode.DETAILED_LIST -> MangaListDetailsHolder(
+			parent
+		)
 		ListMode.GRID -> MangaGridHolder(parent)
 	}
 

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

@@ -1,10 +1,10 @@
-package org.koitharu.kotatsu.ui.main.list
+package org.koitharu.kotatsu.ui.list
 
 import android.annotation.SuppressLint
 import android.view.ViewGroup
 import androidx.core.view.isVisible
-import coil.api.clear
+import coil.clear
-import coil.api.load
+import coil.load
 import kotlinx.android.synthetic.main.item_manga_list_details.*
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.model.Manga

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

@@ -1,4 +1,4 @@
-package org.koitharu.kotatsu.ui.main.list
+package org.koitharu.kotatsu.ui.list
 
 import android.content.SharedPreferences
 import android.os.Bundle
@@ -9,10 +9,7 @@ import androidx.core.view.GravityCompat
 import androidx.core.view.isGone
 import androidx.core.view.isVisible
 import androidx.drawerlayout.widget.DrawerLayout
-import androidx.recyclerview.widget.DividerItemDecoration
+import androidx.recyclerview.widget.*
-import androidx.recyclerview.widget.GridLayoutManager
-import androidx.recyclerview.widget.LinearLayoutManager
-import androidx.recyclerview.widget.RecyclerView
 import androidx.swiperefreshlayout.widget.SwipeRefreshLayout
 import com.google.android.material.snackbar.Snackbar
 import kotlinx.android.synthetic.main.fragment_list.*
@@ -28,23 +25,31 @@ import org.koitharu.kotatsu.core.prefs.ListMode
 import org.koitharu.kotatsu.ui.common.BaseFragment
 import org.koitharu.kotatsu.ui.common.list.OnRecyclerItemClickListener
 import org.koitharu.kotatsu.ui.common.list.PaginationScrollListener
+import org.koitharu.kotatsu.ui.common.list.ProgressBarAdapter
 import org.koitharu.kotatsu.ui.common.list.decor.ItemTypeDividerDecoration
 import org.koitharu.kotatsu.ui.common.list.decor.SectionItemDecoration
 import org.koitharu.kotatsu.ui.common.list.decor.SpacingItemDecoration
 import org.koitharu.kotatsu.ui.details.MangaDetailsActivity
-import org.koitharu.kotatsu.ui.main.list.filter.FilterAdapter
+import org.koitharu.kotatsu.ui.list.filter.FilterAdapter
-import org.koitharu.kotatsu.ui.main.list.filter.OnFilterChangedListener
+import org.koitharu.kotatsu.ui.list.filter.OnFilterChangedListener
 import org.koitharu.kotatsu.utils.UiUtils
 import org.koitharu.kotatsu.utils.ext.*
 
-abstract class MangaListFragment<E> : BaseFragment(R.layout.fragment_list), MangaListView<E>,
+abstract class MangaListFragment<E> : BaseFragment(R.layout.fragment_list),
-	PaginationScrollListener.Callback, OnRecyclerItemClickListener<Manga>,
+	MangaListView<E>, PaginationScrollListener.Callback, OnRecyclerItemClickListener<Manga>,
 	SharedPreferences.OnSharedPreferenceChangeListener, OnFilterChangedListener,
 	SectionItemDecoration.Callback, SwipeRefreshLayout.OnRefreshListener {
 
 	private val settings by inject<AppSettings>()
+	private val adapterConfig = ConcatAdapter.Config.Builder()
+		.setIsolateViewTypes(true)
+		.setStableIdMode(ConcatAdapter.Config.StableIdMode.SHARED_STABLE_IDS)
+		.build()
 
 	private var adapter: MangaListAdapter? = null
+	private var progressAdapter: ProgressBarAdapter? = null
+	private var paginationListener : PaginationScrollListener? = null
+	protected var isSwipeRefreshEnabled = true
 
 	override fun onCreate(savedInstanceState: Bundle?) {
 		super.onCreate(savedInstanceState)
@@ -55,10 +60,11 @@ abstract class MangaListFragment<E> : BaseFragment(R.layout.fragment_list), Mang
 		super.onViewCreated(view, savedInstanceState)
 		drawer?.setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_CLOSED)
 		adapter = MangaListAdapter(this)
+		progressAdapter = ProgressBarAdapter()
+		paginationListener = PaginationScrollListener(4, this)
 		recyclerView.setHasFixedSize(true)
 		initListMode(settings.listMode)
-		recyclerView.adapter = adapter
+		recyclerView.addOnScrollListener(paginationListener!!)
-		recyclerView.addOnScrollListener(PaginationScrollListener(4, this))
 		swipeRefreshLayout.setOnRefreshListener(this)
 		recyclerView_filter.setHasFixedSize(true)
 		recyclerView_filter.addItemDecoration(ItemTypeDividerDecoration(view.context))
@@ -71,6 +77,8 @@ abstract class MangaListFragment<E> : BaseFragment(R.layout.fragment_list), Mang
 
 	override fun onDestroyView() {
 		adapter = null
+		progressAdapter = null
+		paginationListener = null
 		settings.unsubscribe(this)
 		super.onDestroyView()
 	}
@@ -118,10 +126,12 @@ abstract class MangaListFragment<E> : BaseFragment(R.layout.fragment_list), Mang
 	}
 
 	final override fun onRefresh() {
+		swipeRefreshLayout.isRefreshing = true
 		onRequestMoreItems(0)
 	}
 
 	override fun onListChanged(list: List<Manga>) {
+		paginationListener?.reset()
 		adapter?.replaceData(list)
 		if (list.isEmpty()) {
 			setUpEmptyListHolder()
@@ -129,11 +139,16 @@ abstract class MangaListFragment<E> : BaseFragment(R.layout.fragment_list), Mang
 		} else {
 			layout_holder.isVisible = false
 		}
+		progressAdapter?.isProgressVisible = list.isNotEmpty()
 		recyclerView.callOnScrollListeners()
 	}
 
 	override fun onListAppended(list: List<Manga>) {
 		adapter?.appendData(list)
+		progressAdapter?.isProgressVisible = list.isNotEmpty()
+		if (list.isNotEmpty()) {
+			layout_holder.isVisible = false
+		}
 		recyclerView.callOnScrollListeners()
 	}
 
@@ -174,10 +189,11 @@ abstract class MangaListFragment<E> : BaseFragment(R.layout.fragment_list), Mang
 	override fun onLoadingStateChanged(isLoading: Boolean) {
 		val hasItems = recyclerView.hasItems
 		progressBar.isVisible = isLoading && !hasItems
-		swipeRefreshLayout.isRefreshing = isLoading && hasItems
+		swipeRefreshLayout.isEnabled = isSwipeRefreshEnabled && !progressBar.isVisible
-		swipeRefreshLayout.isEnabled = !progressBar.isVisible
 		if (isLoading) {
 			layout_holder.isVisible = false
+		} else {
+			swipeRefreshLayout.isRefreshing = false
 		}
 	}
 
@@ -230,11 +246,18 @@ abstract class MangaListFragment<E> : BaseFragment(R.layout.fragment_list), Mang
 		recyclerView.removeOnLayoutChangeListener(UiUtils.SpanCountResolver)
 		adapter?.listMode = mode
 		recyclerView.layoutManager = when (mode) {
-			ListMode.GRID -> GridLayoutManager(ctx, UiUtils.resolveGridSpanCount(ctx))
+			ListMode.GRID -> {
+				GridLayoutManager(ctx, UiUtils.resolveGridSpanCount(ctx)).apply {
+					spanSizeLookup = object : GridLayoutManager.SpanSizeLookup() {
+						override fun getSpanSize(position: Int) = if (position < getItemsCount())
+							1 else this@apply.spanCount
+					}
+				}
+			}
 			else -> LinearLayoutManager(ctx)
 		}
 		recyclerView.recycledViewPool.clear()
-		recyclerView.adapter = adapter
+		recyclerView.adapter = ConcatAdapter(adapterConfig, adapter, progressAdapter)
 		recyclerView.addItemDecoration(
 			when (mode) {
 				ListMode.LIST -> DividerItemDecoration(ctx, RecyclerView.VERTICAL)
@@ -251,6 +274,8 @@ abstract class MangaListFragment<E> : BaseFragment(R.layout.fragment_list), Mang
 		recyclerView.firstItem = position
 	}
 
+	override fun getItemsCount() = adapter?.itemCount ?: 0
+
 	final override fun isSection(position: Int): Boolean {
 		return position == 0 || recyclerView_filter.adapter?.run {
 			getItemViewType(position) != getItemViewType(position - 1)

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

@@ -1,8 +1,8 @@
-package org.koitharu.kotatsu.ui.main.list
+package org.koitharu.kotatsu.ui.list
 
 import android.view.ViewGroup
-import coil.api.clear
+import coil.clear
-import coil.api.load
+import coil.load
 import kotlinx.android.synthetic.main.item_manga_list.*
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.model.Manga

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

@@ -1,4 +1,4 @@
-package org.koitharu.kotatsu.ui.main.list
+package org.koitharu.kotatsu.ui.list
 
 import android.content.SharedPreferences
 import android.os.Bundle
@@ -7,10 +7,7 @@ import android.view.View
 import androidx.appcompat.widget.Toolbar
 import androidx.core.view.isGone
 import androidx.core.view.isVisible
-import androidx.recyclerview.widget.DividerItemDecoration
+import androidx.recyclerview.widget.*
-import androidx.recyclerview.widget.GridLayoutManager
-import androidx.recyclerview.widget.LinearLayoutManager
-import androidx.recyclerview.widget.RecyclerView
 import com.google.android.material.bottomsheet.BottomSheetBehavior
 import com.google.android.material.bottomsheet.BottomSheetDialog
 import com.google.android.material.snackbar.Snackbar
@@ -27,22 +24,30 @@ import org.koitharu.kotatsu.core.prefs.ListMode
 import org.koitharu.kotatsu.ui.common.BaseBottomSheet
 import org.koitharu.kotatsu.ui.common.list.OnRecyclerItemClickListener
 import org.koitharu.kotatsu.ui.common.list.PaginationScrollListener
+import org.koitharu.kotatsu.ui.common.list.ProgressBarAdapter
 import org.koitharu.kotatsu.ui.common.list.decor.SpacingItemDecoration
 import org.koitharu.kotatsu.ui.details.MangaDetailsActivity
 import org.koitharu.kotatsu.utils.UiUtils
 import org.koitharu.kotatsu.utils.ext.*
 
-abstract class MangaListSheet<E> : BaseBottomSheet(R.layout.sheet_list), MangaListView<E>,
+abstract class MangaListSheet<E> : BaseBottomSheet(R.layout.sheet_list),
+	MangaListView<E>,
 	PaginationScrollListener.Callback, OnRecyclerItemClickListener<Manga>,
 	SharedPreferences.OnSharedPreferenceChangeListener, Toolbar.OnMenuItemClickListener {
 
 	private val settings by inject<AppSettings>()
+	private val adapterConfig = ConcatAdapter.Config.Builder()
+		.setIsolateViewTypes(true)
+		.setStableIdMode(ConcatAdapter.Config.StableIdMode.SHARED_STABLE_IDS)
+		.build()
 
 	private var adapter: MangaListAdapter? = null
+	private var progressAdapter: ProgressBarAdapter? = null
 
 	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
 		super.onViewCreated(view, savedInstanceState)
 		adapter = MangaListAdapter(this)
+		progressAdapter = ProgressBarAdapter()
 		initListMode(settings.listMode)
 		recyclerView.adapter = adapter
 		recyclerView.addOnScrollListener(PaginationScrollListener(4, this))
@@ -65,6 +70,7 @@ abstract class MangaListSheet<E> : BaseBottomSheet(R.layout.sheet_list), MangaLi
 	override fun onDestroyView() {
 		settings.unsubscribe(this)
 		adapter = null
+		progressAdapter = null
 		super.onDestroyView()
 	}
 
@@ -122,6 +128,7 @@ abstract class MangaListSheet<E> : BaseBottomSheet(R.layout.sheet_list), MangaLi
 	override fun onListChanged(list: List<Manga>) {
 		adapter?.replaceData(list)
 		textView_holder.isVisible = list.isEmpty()
+		progressAdapter?.isProgressVisible = list.isNotEmpty()
 		recyclerView.callOnScrollListeners()
 	}
 
@@ -130,6 +137,7 @@ abstract class MangaListSheet<E> : BaseBottomSheet(R.layout.sheet_list), MangaLi
 		if (list.isNotEmpty()) {
 			textView_holder.isVisible = false
 		}
+		progressAdapter?.isProgressVisible = list.isNotEmpty()
 		recyclerView.callOnScrollListeners()
 	}
 
@@ -137,6 +145,8 @@ abstract class MangaListSheet<E> : BaseBottomSheet(R.layout.sheet_list), MangaLi
 		Snackbar.make(recyclerView, e.getDisplayMessage(resources), Snackbar.LENGTH_SHORT).show()
 	}
 
+	override fun getItemsCount() = adapter?.itemCount ?: 0
+
 	override fun onInitFilter(
 		sortOrders: List<SortOrder>,
 		tags: List<MangaTag>,
@@ -170,10 +180,17 @@ abstract class MangaListSheet<E> : BaseBottomSheet(R.layout.sheet_list), MangaLi
 		recyclerView.removeOnLayoutChangeListener(UiUtils.SpanCountResolver)
 		adapter?.listMode = mode
 		recyclerView.layoutManager = when (mode) {
-			ListMode.GRID -> GridLayoutManager(ctx, UiUtils.resolveGridSpanCount(ctx))
+			ListMode.GRID -> {
+				GridLayoutManager(ctx, UiUtils.resolveGridSpanCount(ctx)).apply {
+					spanSizeLookup = object : GridLayoutManager.SpanSizeLookup() {
+						override fun getSpanSize(position: Int) = if (position < getItemsCount())
+							1 else this@apply.spanCount
+					}
+				}
+			}
 			else -> LinearLayoutManager(ctx)
 		}
-		recyclerView.adapter = adapter
+		recyclerView.adapter = ConcatAdapter(adapterConfig, adapter, progressAdapter)
 		recyclerView.addItemDecoration(
 			when (mode) {
 				ListMode.LIST -> DividerItemDecoration(ctx, RecyclerView.VERTICAL)

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

@@ -1,4 +1,4 @@
-package org.koitharu.kotatsu.ui.main.list
+package org.koitharu.kotatsu.ui.list
 
 import moxy.viewstate.strategy.AddToEndSingleTagStrategy
 import moxy.viewstate.strategy.AddToEndStrategy

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

@@ -0,0 +1,88 @@
+package org.koitharu.kotatsu.ui.list.favourites
+
+import android.os.Bundle
+import android.view.Menu
+import android.view.MenuInflater
+import android.view.MenuItem
+import android.view.View
+import com.google.android.material.snackbar.Snackbar
+import com.google.android.material.tabs.TabLayoutMediator
+import kotlinx.android.synthetic.main.fragment_favourites.*
+import moxy.ktx.moxyPresenter
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.core.model.FavouriteCategory
+import org.koitharu.kotatsu.domain.favourites.FavouritesRepository
+import org.koitharu.kotatsu.domain.favourites.OnFavouritesChangeListener
+import org.koitharu.kotatsu.ui.common.BaseFragment
+import org.koitharu.kotatsu.ui.list.favourites.categories.CategoriesActivity
+import org.koitharu.kotatsu.ui.list.favourites.categories.FavouriteCategoriesPresenter
+import org.koitharu.kotatsu.ui.list.favourites.categories.FavouriteCategoriesView
+import java.util.*
+import kotlin.collections.ArrayList
+
+class FavouritesContainerFragment : BaseFragment(R.layout.fragment_favourites), FavouriteCategoriesView,
+	OnFavouritesChangeListener {
+
+	private val presenter by moxyPresenter(factory = ::FavouriteCategoriesPresenter)
+
+	override fun onCreate(savedInstanceState: Bundle?) {
+		super.onCreate(savedInstanceState)
+		setHasOptionsMenu(true)
+	}
+
+	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+		super.onViewCreated(view, savedInstanceState)
+		val adapter = FavouritesPagerAdapter(this)
+		pager.adapter = adapter
+		TabLayoutMediator(tabs, pager, adapter).attach()
+		FavouritesRepository.subscribe(this)
+	}
+
+	override fun onDestroyView() {
+		FavouritesRepository.unsubscribe(this)
+		super.onDestroyView()
+	}
+
+	override fun onCategoriesChanged(categories: List<FavouriteCategory>) {
+		val data = ArrayList<FavouriteCategory>(categories.size + 1)
+		data += FavouriteCategory(0L, getString(R.string.all_favourites), -1, Date())
+		data += categories
+		(pager.adapter as? FavouritesPagerAdapter)?.replaceData(data)
+	}
+
+	override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
+		inflater.inflate(R.menu.opt_favourites, menu)
+		super.onCreateOptionsMenu(menu, inflater)
+	}
+
+	override fun onOptionsItemSelected(item: MenuItem) = when (item.itemId) {
+		R.id.action_categories -> {
+			context?.let {
+				startActivity(CategoriesActivity.newIntent(it))
+			}
+			true
+		}
+		else -> super.onOptionsItemSelected(item)
+	}
+
+	override fun getTitle(): CharSequence? {
+		return getString(R.string.favourites)
+	}
+
+	override fun onCheckedCategoriesChanged(checkedIds: Set<Int>) = Unit
+
+	override fun onError(e: Throwable) {
+		Snackbar.make(pager, e.message ?: return, Snackbar.LENGTH_LONG).show()
+	}
+
+	override fun onFavouritesChanged(mangaId: Long) = Unit
+
+	override fun onCategoriesChanged() {
+		presenter.loadAllCategories()
+	}
+
+	companion object {
+
+		fun newInstance() = FavouritesContainerFragment()
+	}
+}

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

@@ -0,0 +1,39 @@
+package org.koitharu.kotatsu.ui.list.favourites
+
+import kotlinx.android.synthetic.main.fragment_list.*
+import moxy.ktx.moxyPresenter
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.ui.list.MangaListFragment
+import org.koitharu.kotatsu.ui.list.MangaListView
+import org.koitharu.kotatsu.utils.ext.withArgs
+
+class FavouritesListFragment : MangaListFragment<Unit>(),
+	MangaListView<Unit> {
+
+	private val presenter by moxyPresenter(factory = ::FavouritesListPresenter)
+
+	private val categoryId: Long
+		get() = arguments?.getLong(ARG_CATEGORY_ID) ?: 0L
+
+	override fun onRequestMoreItems(offset: Int) {
+		presenter.loadList(categoryId, offset)
+	}
+
+	override fun setUpEmptyListHolder() {
+		textView_holder.setText(if (categoryId == 0L) {
+			R.string.you_have_not_favourites_yet
+		} else {
+			R.string.favourites_category_empty
+		})
+		textView_holder.setCompoundDrawablesRelativeWithIntrinsicBounds(0, 0, 0, 0)
+	}
+
+	companion object {
+
+		private const val ARG_CATEGORY_ID = "category_id"
+
+		fun newInstance(categoryId: Long) = FavouritesListFragment().withArgs(1) {
+			putLong(ARG_CATEGORY_ID, categoryId)
+		}
+	}
+}

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

@@ -1,4 +1,4 @@
-package org.koitharu.kotatsu.ui.main.list.favourites
+package org.koitharu.kotatsu.ui.list.favourites
 
 import kotlinx.coroutines.CancellationException
 import kotlinx.coroutines.Dispatchers
@@ -9,7 +9,7 @@ import moxy.presenterScope
 import org.koitharu.kotatsu.BuildConfig
 import org.koitharu.kotatsu.domain.favourites.FavouritesRepository
 import org.koitharu.kotatsu.ui.common.BasePresenter
-import org.koitharu.kotatsu.ui.main.list.MangaListView
+import org.koitharu.kotatsu.ui.list.MangaListView
 
 @InjectViewState
 class FavouritesListPresenter : BasePresenter<MangaListView<Unit>>() {
@@ -21,12 +21,16 @@ class FavouritesListPresenter : BasePresenter<MangaListView<Unit>>() {
 		super.onFirstViewAttach()
 	}
 
-	fun loadList(offset: Int) {
+	fun loadList(categoryId: Long, offset: Int) {
 		presenterScope.launch {
 			viewState.onLoadingStateChanged(true)
 			try {
 				val list = withContext(Dispatchers.IO) {
-					repository.getAllManga(offset = offset)
+					if (categoryId == 0L) {
+						repository.getAllManga(offset = offset)
+					} else {
+						repository.getManga(categoryId = categoryId, offset = offset)
+					}
 				}
 				if (offset == 0) {
 					viewState.onListChanged(list)

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

@@ -0,0 +1,32 @@
+package org.koitharu.kotatsu.ui.list.favourites
+
+import androidx.fragment.app.Fragment
+import androidx.viewpager2.adapter.FragmentStateAdapter
+import com.google.android.material.tabs.TabLayout
+import com.google.android.material.tabs.TabLayoutMediator
+import org.koitharu.kotatsu.core.model.FavouriteCategory
+import org.koitharu.kotatsu.ui.common.list.AdapterUpdater
+import org.koitharu.kotatsu.utils.ext.replaceWith
+
+class FavouritesPagerAdapter(fragment: Fragment) : FragmentStateAdapter(fragment), TabLayoutMediator.TabConfigurationStrategy {
+
+	private val dataSet = ArrayList<FavouriteCategory>()
+
+	override fun getItemCount() = dataSet.size
+
+	override fun createFragment(position: Int): Fragment {
+		val item = dataSet[position]
+		return FavouritesListFragment.newInstance(item.id)
+	}
+
+	override fun onConfigureTab(tab: TabLayout.Tab, position: Int) {
+		val item = dataSet[position]
+		tab.text = item.title
+	}
+
+	fun replaceData(data: List<FavouriteCategory>) {
+		val updater = AdapterUpdater(dataSet, data, FavouriteCategory::id)
+		dataSet.replaceWith(data)
+		updater(this)
+	}
+}

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

@@ -1,4 +1,4 @@
-package org.koitharu.kotatsu.ui.main.list.favourites.categories
+package org.koitharu.kotatsu.ui.list.favourites.categories
 
 import android.content.Context
 import android.content.Intent
@@ -7,10 +7,11 @@ import android.graphics.Color
 import android.os.Bundle
 import android.text.InputType
 import android.view.View
-import androidx.appcompat.app.AlertDialog
 import androidx.core.view.isVisible
 import androidx.recyclerview.widget.DividerItemDecoration
+import androidx.recyclerview.widget.ItemTouchHelper
 import androidx.recyclerview.widget.RecyclerView
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import com.google.android.material.snackbar.Snackbar
 import kotlinx.android.synthetic.main.activity_categories.*
 import moxy.ktx.moxyPresenter
@@ -28,6 +29,7 @@ class CategoriesActivity : BaseActivity(), OnRecyclerItemClickListener<Favourite
 	private val presenter by moxyPresenter(factory = ::FavouriteCategoriesPresenter)
 
 	private lateinit var adapter: CategoriesAdapter
+	private lateinit var reorderHelper: ItemTouchHelper
 
 	override fun onCreate(savedInstanceState: Bundle?) {
 		super.onCreate(savedInstanceState)
@@ -38,6 +40,8 @@ class CategoriesActivity : BaseActivity(), OnRecyclerItemClickListener<Favourite
 		recyclerView.addItemDecoration(DividerItemDecoration(this, RecyclerView.VERTICAL))
 		recyclerView.adapter = adapter
 		fab_add.setOnClickListener(this)
+		reorderHelper = ItemTouchHelper(ReorderHelperCallback())
+		reorderHelper.attachToRecyclerView(recyclerView)
 	}
 
 	override fun onClick(v: View) {
@@ -56,6 +60,11 @@ class CategoriesActivity : BaseActivity(), OnRecyclerItemClickListener<Favourite
 		}
 	}
 
+	override fun onItemLongClick(item: FavouriteCategory, position: Int, view: View): Boolean {
+		reorderHelper.startDrag(recyclerView.findViewHolderForAdapterPosition(position) ?: return false)
+		return true
+	}
+
 	override fun onCategoriesChanged(categories: List<FavouriteCategory>) {
 		adapter.replaceData(categories)
 		textView_holder.isVisible = categories.isEmpty()
@@ -69,7 +78,7 @@ class CategoriesActivity : BaseActivity(), OnRecyclerItemClickListener<Favourite
 	}
 
 	private fun deleteCategory(category: FavouriteCategory) {
-		AlertDialog.Builder(this)
+		MaterialAlertDialogBuilder(this)
 			.setMessage(getString(R.string.category_delete_confirm, category.title))
 			.setTitle(R.string.remove_category)
 			.setNegativeButton(android.R.string.cancel, null)
@@ -106,6 +115,25 @@ class CategoriesActivity : BaseActivity(), OnRecyclerItemClickListener<Favourite
 			.show()
 	}
 
+	private inner class ReorderHelperCallback : ItemTouchHelper.SimpleCallback(
+		ItemTouchHelper.DOWN or ItemTouchHelper.UP, 0
+	) {
+
+		override fun onMove(
+			recyclerView: RecyclerView,
+			viewHolder: RecyclerView.ViewHolder,
+			target: RecyclerView.ViewHolder
+		): Boolean {
+			val oldPos = viewHolder.bindingAdapterPosition
+			val newPos = target.bindingAdapterPosition
+			adapter.moveItem(oldPos, newPos)
+			presenter.storeCategoriesOrder(adapter.items.map { it.id })
+			return true
+		}
+
+		override fun onSwiped(viewHolder: RecyclerView.ViewHolder, direction: Int) = Unit
+	}
+
 	companion object {
 
 		fun newIntent(context: Context) = Intent(context, CategoriesActivity::class.java)