Fix branch detection #143

Added translation using Weblate (Basque)

Co-authored-by: Sergio Varela <sergitroll9@gmail.com>

.idea/gradle.xml

@@ -7,7 +7,7 @@
         <option name="testRunner" value="GRADLE" />
         <option name="distributionType" value="DEFAULT_WRAPPED" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
-        <option name="gradleJvm" value="Embedded JDK" />
+        <option name="gradleJvm" value="Android Studio default JDK" />
         <option name="modules">
           <set>
             <option value="$PROJECT_DIR$" />

README.md

@@ -25,6 +25,8 @@ Download APK from Github Releases:
 * Tablet-optimized material design UI
 * Standard and Webtoon-optimized reader
 * Notifications about new chapters with updates feed
+* Available in multiple languages
+* Password protect access to the app
 
 ### Screenshots
 
@@ -35,6 +37,14 @@ Download APK from Github Releases:
 | ![](https://github.com/nv95/Kotatsu/raw/devel/metadata/en-US/images/tenInchScreenshots/1.png) | ![](https://github.com/nv95/Kotatsu/raw/devel/metadata/en-US/images/tenInchScreenshots/2.png) |
 |-----------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------|
 
+### Localization
+
+<a href="https://hosted.weblate.org/engage/kotatsu/">
+<img src="https://hosted.weblate.org/widgets/kotatsu/-/287x66-white.png" alt="Translation status" />
+</a>
+
+Kotatsu is localized in a number of different languages, if you would like to help improve these or add new languages, please head over to the Weblate <a href="https://hosted.weblate.org/engage/kotatsu/">project page</a> 
+
 ### License
 [![GNU GPLv3 Image](https://www.gnu.org/graphics/gplv3-127x51.png)](http://www.gnu.org/licenses/gpl-3.0.en.html)  
 

app/build.gradle

@@ -14,8 +14,8 @@ android {
 		applicationId 'org.koitharu.kotatsu'
 		minSdkVersion 21
 		targetSdkVersion 32
-		versionCode 400
-		versionName '3.0'
+		versionCode 402
+		versionName '3.1.1'
 		generatedDensities = []
 		testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
 
@@ -65,12 +65,12 @@ android {
 }
 dependencies {
 	implementation fileTree(dir: 'libs', include: ['*.jar', '*.aar'])
-	implementation('com.github.nv95:kotatsu-parsers:3ea7e92e64') {
+	implementation('com.github.nv95:kotatsu-parsers:8e23a7fcd4') {
 		exclude group: 'org.json', module: 'json'
 	}
 
-	implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.6.0'
-	implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.6.0'
+	implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.6.1'
+	implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.6.1'
 
 	implementation 'androidx.core:core-ktx:1.7.0'
 	implementation 'androidx.activity:activity-ktx:1.4.0'
@@ -100,7 +100,7 @@ dependencies {
 	implementation 'com.hannesdorfmann:adapterdelegates4-kotlin-dsl:4.3.2'
 	implementation 'com.hannesdorfmann:adapterdelegates4-kotlin-dsl-viewbinding:4.3.2'
 
-	implementation 'io.insert-koin:koin-android:3.1.5'
+	implementation 'io.insert-koin:koin-android:3.1.6'
 	implementation 'io.coil-kt:coil-base:1.4.0'
 	implementation 'com.davemorrissey.labs:subsampling-scale-image-view-androidx:3.10.0'
 	implementation 'com.github.solkin:disk-lru-cache:1.4'
@@ -108,7 +108,7 @@ dependencies {
 	debugImplementation 'com.squareup.leakcanary:leakcanary-android:2.8.1'
 
 	testImplementation 'junit:junit:4.13.2'
-	testImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:1.6.0'
+	testImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:1.6.1'
 	testImplementation 'io.insert-koin:koin-test-junit4:3.1.5'
 
 	androidTestImplementation 'androidx.test:runner:1.4.0'

app/src/main/AndroidManifest.xml

@@ -8,23 +8,23 @@
 	<uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
 	<uses-permission android:name="android.permission.WAKE_LOCK" />
 	<uses-permission android:name="android.permission.VIBRATE" />
-	<uses-permission
-		android:name="android.permission.WRITE_EXTERNAL_STORAGE"
-		android:maxSdkVersion="28"
-		tools:ignore="ScopedStorage" />
 	<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
 
 	<application
 		android:name="org.koitharu.kotatsu.KotatsuApp"
 		android:allowBackup="true"
-		android:fullBackupContent="@xml/backup_descriptor"
+		android:backupAgent="org.koitharu.kotatsu.settings.backup.AppBackupAgent"
+		android:dataExtractionRules="@xml/backup_rules"
+		android:fullBackupContent="@xml/backup_content"
+		android:fullBackupOnly="true"
 		android:icon="@mipmap/ic_launcher"
 		android:label="@string/app_name"
+		android:networkSecurityConfig="@xml/network_security_config"
 		android:roundIcon="@mipmap/ic_launcher_round"
 		android:supportsRtl="true"
 		android:theme="@style/Theme.Kotatsu"
-		android:networkSecurityConfig="@xml/network_security_config"
 		tools:ignore="UnusedAttribute">
+
 		<activity
 			android:name="org.koitharu.kotatsu.main.ui.MainActivity"
 			android:exported="true">
@@ -58,15 +58,6 @@
 		<activity
 			android:name="org.koitharu.kotatsu.settings.SettingsActivity"
 			android:label="@string/settings" />
-		<activity
-			android:name="org.koitharu.kotatsu.reader.ui.SimpleSettingsActivity"
-			android:exported="true"
-			android:label="@string/settings">
-			<intent-filter>
-				<action android:name="android.intent.action.MANAGE_NETWORK_USAGE" />
-				<category android:name="android.intent.category.DEFAULT" />
-			</intent-filter>
-		</activity>
 		<activity
 			android:name="org.koitharu.kotatsu.browser.BrowserActivity"
 			android:configChanges="orientation|screenSize|screenLayout|keyboardHidden"
@@ -104,6 +95,7 @@
 			android:windowSoftInputMode="adjustResize" />
 		<activity
 			android:name="org.koitharu.kotatsu.download.ui.DownloadsActivity"
+			android:launchMode="singleTop"
 			android:label="@string/downloads" />
 		<activity android:name="org.koitharu.kotatsu.image.ui.ImageActivity"/>
 

app/src/main/java/org/koitharu/kotatsu/base/domain/MangaDataRepository.kt

@@ -2,22 +2,19 @@ package org.koitharu.kotatsu.base.domain
 
 import androidx.room.withTransaction
 import org.koitharu.kotatsu.core.db.MangaDatabase
-import org.koitharu.kotatsu.core.db.entity.MangaEntity
-import org.koitharu.kotatsu.core.db.entity.MangaPrefsEntity
-import org.koitharu.kotatsu.core.db.entity.TagEntity
+import org.koitharu.kotatsu.core.db.entity.*
 import org.koitharu.kotatsu.core.prefs.ReaderMode
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.model.MangaTag
-import org.koitharu.kotatsu.utils.ext.mapToSet
 
 class MangaDataRepository(private val db: MangaDatabase) {
 
 	suspend fun savePreferences(manga: Manga, mode: ReaderMode) {
-		val tags = manga.tags.map(TagEntity.Companion::fromMangaTag)
+		val tags = manga.tags.toEntities()
 		db.withTransaction {
 			db.tagsDao.upsert(tags)
-			db.mangaDao.upsert(MangaEntity.from(manga), tags)
+			db.mangaDao.upsert(manga.toEntity(), tags)
 			db.preferencesDao.upsert(
 				MangaPrefsEntity(
 					mangaId = manga.id,
@@ -37,21 +34,19 @@ class MangaDataRepository(private val db: MangaDatabase) {
 
 	suspend fun resolveIntent(intent: MangaIntent): Manga? = when {
 		intent.manga != null -> intent.manga
-		intent.mangaId != 0L -> db.mangaDao.find(intent.mangaId)?.toManga()
+		intent.mangaId != 0L -> findMangaById(intent.mangaId)
 		else -> null // TODO resolve uri
 	}
 
 	suspend fun storeManga(manga: Manga) {
-		val tags = manga.tags.map(TagEntity.Companion::fromMangaTag)
+		val tags = manga.tags.toEntities()
 		db.withTransaction {
 			db.tagsDao.upsert(tags)
-			db.mangaDao.upsert(MangaEntity.from(manga), tags)
+			db.mangaDao.upsert(manga.toEntity(), tags)
 		}
 	}
 
 	suspend fun findTags(source: MangaSource): Set<MangaTag> {
-		return db.tagsDao.findTags(source.name).mapToSet {
-			it.toMangaTag()
-		}
+		return db.tagsDao.findTags(source.name).toMangaTags()
 	}
 }

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

@@ -14,7 +14,7 @@ import org.koitharu.kotatsu.core.network.CommonHeaders
 import org.koitharu.kotatsu.core.parser.MangaRepository
 import org.koitharu.kotatsu.parsers.model.MangaPage
 import org.koitharu.kotatsu.parsers.util.await
-import org.koitharu.kotatsu.utils.ext.medianOrNull
+import org.koitharu.kotatsu.parsers.util.medianOrNull
 import java.io.InputStream
 import java.util.zip.ZipFile
 

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

@@ -7,6 +7,7 @@ import android.view.KeyEvent
 import android.view.MenuItem
 import android.view.View
 import android.view.ViewGroup
+import androidx.annotation.CallSuper
 import androidx.appcompat.app.AppCompatActivity
 import androidx.appcompat.view.ActionMode
 import androidx.appcompat.widget.ActionBarContextView
@@ -20,11 +21,13 @@ import androidx.viewbinding.ViewBinding
 import org.koin.android.ext.android.get
 import org.koitharu.kotatsu.BuildConfig
 import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.base.ui.util.ActionModeDelegate
 import org.koitharu.kotatsu.base.ui.util.WindowInsetsDelegate
 import org.koitharu.kotatsu.core.exceptions.resolve.ExceptionResolver
 import org.koitharu.kotatsu.core.prefs.AppSettings
 
-abstract class BaseActivity<B : ViewBinding> : AppCompatActivity(),
+abstract class BaseActivity<B : ViewBinding> :
+	AppCompatActivity(),
 	WindowInsetsDelegate.WindowInsetsListener {
 
 	protected lateinit var binding: B
@@ -36,6 +39,8 @@ abstract class BaseActivity<B : ViewBinding> : AppCompatActivity(),
 	@Suppress("LeakingThis")
 	protected val insetsDelegate = WindowInsetsDelegate(this)
 
+	val actionModeDelegate = ActionModeDelegate()
+
 	override fun onCreate(savedInstanceState: Bundle?) {
 		val settings = get<AppSettings>()
 		when {
@@ -90,8 +95,10 @@ abstract class BaseActivity<B : ViewBinding> : AppCompatActivity(),
 		return isNight && get<AppSettings>().isAmoledTheme
 	}
 
+	@CallSuper
 	override fun onSupportActionModeStarted(mode: ActionMode) {
 		super.onSupportActionModeStarted(mode)
+		actionModeDelegate.onSupportActionModeStarted(mode)
 		val insets = ViewCompat.getRootWindowInsets(binding.root)
 			?.getInsets(WindowInsetsCompat.Type.systemBars()) ?: return
 		val view = findViewById<ActionBarContextView?>(androidx.appcompat.R.id.action_mode_bar)
@@ -100,6 +107,12 @@ abstract class BaseActivity<B : ViewBinding> : AppCompatActivity(),
 		}
 	}
 
+	@CallSuper
+	override fun onSupportActionModeFinished(mode: ActionMode) {
+		super.onSupportActionModeFinished(mode)
+		actionModeDelegate.onSupportActionModeFinished(mode)
+	}
+
 	override fun onBackPressed() {
 		if ( // https://issuetracker.google.com/issues/139738913
 			Build.VERSION.SDK_INT == Build.VERSION_CODES.Q &&
@@ -111,4 +124,4 @@ abstract class BaseActivity<B : ViewBinding> : AppCompatActivity(),
 			super.onBackPressed()
 		}
 	}
-}
+}

app/src/main/java/org/koitharu/kotatsu/base/ui/BaseFragment.kt

@@ -6,10 +6,12 @@ import android.view.View
 import android.view.ViewGroup
 import androidx.fragment.app.Fragment
 import androidx.viewbinding.ViewBinding
+import org.koitharu.kotatsu.base.ui.util.ActionModeDelegate
 import org.koitharu.kotatsu.base.ui.util.WindowInsetsDelegate
 import org.koitharu.kotatsu.core.exceptions.resolve.ExceptionResolver
 
-abstract class BaseFragment<B : ViewBinding> : Fragment(),
+abstract class BaseFragment<B : ViewBinding> :
+	Fragment(),
 	WindowInsetsDelegate.WindowInsetsListener {
 
 	private var viewBinding: B? = null
@@ -23,6 +25,9 @@ abstract class BaseFragment<B : ViewBinding> : Fragment(),
 	@Suppress("LeakingThis")
 	protected val insetsDelegate = WindowInsetsDelegate(this)
 
+	protected val actionModeDelegate: ActionModeDelegate
+		get() = (requireActivity() as BaseActivity<*>).actionModeDelegate
+
 	override fun onCreateView(
 		inflater: LayoutInflater,
 		container: ViewGroup?,
@@ -47,4 +52,4 @@ abstract class BaseFragment<B : ViewBinding> : Fragment(),
 	protected fun bindingOrNull() = viewBinding
 
 	protected abstract fun onInflateView(inflater: LayoutInflater, container: ViewGroup?): B
-}
+}

app/src/main/java/org/koitharu/kotatsu/base/ui/BasePreferenceFragment.kt

@@ -6,14 +6,18 @@ import androidx.annotation.CallSuper
 import androidx.annotation.StringRes
 import androidx.core.graphics.Insets
 import androidx.core.view.updatePadding
+import androidx.fragment.app.Fragment
 import androidx.preference.PreferenceFragmentCompat
 import androidx.recyclerview.widget.RecyclerView
 import org.koin.android.ext.android.inject
 import org.koitharu.kotatsu.base.ui.util.RecyclerViewOwner
 import org.koitharu.kotatsu.base.ui.util.WindowInsetsDelegate
 import org.koitharu.kotatsu.core.prefs.AppSettings
+import org.koitharu.kotatsu.settings.SettingsActivity
+import org.koitharu.kotatsu.settings.SettingsHeadersFragment
 
-abstract class BasePreferenceFragment(@StringRes private val titleId: Int) : PreferenceFragmentCompat(),
+abstract class BasePreferenceFragment(@StringRes private val titleId: Int) :
+	PreferenceFragmentCompat(),
 	WindowInsetsDelegate.WindowInsetsListener,
 	RecyclerViewOwner {
 
@@ -39,16 +43,20 @@ abstract class BasePreferenceFragment(@StringRes private val titleId: Int) : Pre
 	override fun onResume() {
 		super.onResume()
 		if (titleId != 0) {
-			activity?.setTitle(titleId)
+			setTitle(getString(titleId))
 		}
 	}
 
 	@CallSuper
 	override fun onWindowInsetsChanged(insets: Insets) {
 		listView.updatePadding(
-			left = insets.left,
-			right = insets.right,
 			bottom = insets.bottom
 		)
 	}
-}
+
+	@Suppress("UsePropertyAccessSyntax")
+	protected fun setTitle(title: CharSequence) {
+		(parentFragment as? SettingsHeadersFragment)?.setTitle(title)
+			?: activity?.setTitle(title)
+	}
+}

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

@@ -2,6 +2,7 @@ package org.koitharu.kotatsu.base.ui.dialog
 
 import android.content.Context
 import android.content.DialogInterface
+import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.BaseAdapter
@@ -12,7 +13,6 @@ import kotlinx.coroutines.runBlocking
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.databinding.ItemStorageBinding
 import org.koitharu.kotatsu.local.data.LocalStorageManager
-import org.koitharu.kotatsu.utils.ext.inflate
 import java.io.File
 
 class StorageSelectDialog private constructor(private val delegate: AlertDialog) :
@@ -66,7 +66,7 @@ class StorageSelectDialog private constructor(private val delegate: AlertDialog)
 		val volumes = getAvailableVolumes(storageManager)
 
 		override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
-			val view = convertView ?: parent.inflate(R.layout.item_storage)
+			val view = convertView ?: LayoutInflater.from(parent.context).inflate(R.layout.item_storage, parent, false)
 			val binding = (view.tag as? ItemStorageBinding) ?: ItemStorageBinding.bind(view).also {
 				view.tag = it
 			}

app/src/main/java/org/koitharu/kotatsu/base/ui/list/decor/AbstractSelectionItemDecoration.kt

@@ -0,0 +1,111 @@
+package org.koitharu.kotatsu.base.ui.list.decor
+
+import android.graphics.Canvas
+import android.graphics.Rect
+import android.graphics.RectF
+import android.view.View
+import androidx.core.view.children
+import androidx.recyclerview.widget.RecyclerView
+import androidx.recyclerview.widget.RecyclerView.NO_ID
+
+abstract class AbstractSelectionItemDecoration : RecyclerView.ItemDecoration() {
+
+	private val bounds = Rect()
+	private val boundsF = RectF()
+	private val selection = HashSet<Long>()
+
+	protected var hasBackground: Boolean = true
+	protected var hasForeground: Boolean = false
+	protected var isIncludeDecorAndMargins: Boolean = true
+
+	val checkedItemsCount: Int
+		get() = selection.size
+
+	val checkedItemsIds: Set<Long>
+		get() = selection
+
+	fun toggleItemChecked(id: Long) {
+		if (!selection.remove(id)) {
+			selection.add(id)
+		}
+	}
+
+	fun setItemIsChecked(id: Long, isChecked: Boolean) {
+		if (isChecked) {
+			selection.add(id)
+		} else {
+			selection.remove(id)
+		}
+	}
+
+	fun checkAll(ids: Collection<Long>) {
+		selection.addAll(ids)
+	}
+
+	fun clearSelection() {
+		selection.clear()
+	}
+
+	override fun onDraw(canvas: Canvas, parent: RecyclerView, state: RecyclerView.State) {
+		if (hasBackground) {
+			doDraw(canvas, parent, state, false)
+		} else {
+			super.onDraw(canvas, parent, state)
+		}
+	}
+
+	override fun onDrawOver(canvas: Canvas, parent: RecyclerView, state: RecyclerView.State) {
+		if (hasForeground) {
+			doDraw(canvas, parent, state, true)
+		} else {
+			super.onDrawOver(canvas, parent, state)
+		}
+	}
+
+	private fun doDraw(canvas: Canvas, parent: RecyclerView, state: RecyclerView.State, isOver: Boolean) {
+		val checkpoint = canvas.save()
+		if (parent.clipToPadding) {
+			canvas.clipRect(
+				parent.paddingLeft, parent.paddingTop, parent.width - parent.paddingRight,
+				parent.height - parent.paddingBottom
+			)
+		}
+
+		for (child in parent.children) {
+			val itemId = getItemId(parent, child)
+			if (itemId != NO_ID && itemId in selection) {
+				if (isIncludeDecorAndMargins) {
+					parent.getDecoratedBoundsWithMargins(child, bounds)
+				} else {
+					bounds.set(child.left, child.top, child.right, child.bottom)
+				}
+				boundsF.set(bounds)
+				boundsF.offset(child.translationX, child.translationY)
+				if (isOver) {
+					onDrawForeground(canvas, parent, child, boundsF, state)
+				} else {
+					onDrawBackground(canvas, parent, child, boundsF, state)
+				}
+			}
+		}
+		canvas.restoreToCount(checkpoint)
+	}
+
+	protected open fun getItemId(parent: RecyclerView, child: View) = parent.getChildItemId(child)
+
+	protected open fun onDrawBackground(
+		canvas: Canvas,
+		parent: RecyclerView,
+		child: View,
+		bounds: RectF,
+		state: RecyclerView.State,
+	) = Unit
+
+	protected open fun onDrawForeground(
+		canvas: Canvas,
+		parent: RecyclerView,
+		child: View,
+		bounds: RectF,
+		state: RecyclerView.State,
+	) = Unit
+}

app/src/main/java/org/koitharu/kotatsu/base/ui/util/ActionModeDelegate.kt

@@ -0,0 +1,50 @@
+package org.koitharu.kotatsu.base.ui.util
+
+import androidx.appcompat.view.ActionMode
+import androidx.lifecycle.DefaultLifecycleObserver
+import androidx.lifecycle.LifecycleOwner
+
+class ActionModeDelegate {
+
+	private var activeActionMode: ActionMode? = null
+	private var listeners: MutableList<ActionModeListener>? = null
+
+	val isActionModeStarted: Boolean
+		get() = activeActionMode != null
+
+	fun onSupportActionModeStarted(mode: ActionMode) {
+		activeActionMode = mode
+		listeners?.forEach { it.onActionModeStarted(mode) }
+	}
+
+	fun onSupportActionModeFinished(mode: ActionMode) {
+		activeActionMode = null
+		listeners?.forEach { it.onActionModeFinished(mode) }
+	}
+
+	fun addListener(listener: ActionModeListener) {
+		if (listeners == null) {
+			listeners = ArrayList()
+		}
+		checkNotNull(listeners).add(listener)
+	}
+
+	fun removeListener(listener: ActionModeListener) {
+		listeners?.remove(listener)
+	}
+
+	fun addListener(listener: ActionModeListener, owner: LifecycleOwner) {
+		addListener(listener)
+		owner.lifecycle.addObserver(ListenerLifecycleObserver(listener))
+	}
+
+	private inner class ListenerLifecycleObserver(
+		private val listener: ActionModeListener,
+	) : DefaultLifecycleObserver {
+
+		override fun onDestroy(owner: LifecycleOwner) {
+			super.onDestroy(owner)
+			removeListener(listener)
+		}
+	}
+}

app/src/main/java/org/koitharu/kotatsu/base/ui/util/ActionModeListener.kt

@@ -0,0 +1,10 @@
+package org.koitharu.kotatsu.base.ui.util
+
+import androidx.appcompat.view.ActionMode
+
+interface ActionModeListener {
+
+	fun onActionModeStarted(mode: ActionMode)
+
+	fun onActionModeFinished(mode: ActionMode)
+}

app/src/main/java/org/koitharu/kotatsu/base/ui/util/ShrinkOnScrollBehavior.kt

@@ -0,0 +1,48 @@
+package org.koitharu.kotatsu.base.ui.util
+
+import android.content.Context
+import android.util.AttributeSet
+import android.view.View
+import androidx.coordinatorlayout.widget.CoordinatorLayout
+import androidx.coordinatorlayout.widget.CoordinatorLayout.Behavior
+import androidx.core.view.ViewCompat
+import com.google.android.material.floatingactionbutton.ExtendedFloatingActionButton
+
+class ShrinkOnScrollBehavior : Behavior<ExtendedFloatingActionButton> {
+
+	@Suppress("unused") constructor() : super()
+	@Suppress("unused") constructor(context: Context?, attrs: AttributeSet?) : super(context, attrs)
+
+	override fun onStartNestedScroll(
+		coordinatorLayout: CoordinatorLayout,
+		child: ExtendedFloatingActionButton,
+		directTargetChild: View,
+		target: View,
+		axes: Int,
+		type: Int
+	): Boolean {
+		return axes == ViewCompat.SCROLL_AXIS_VERTICAL
+	}
+
+	override fun onNestedScroll(
+		coordinatorLayout: CoordinatorLayout,
+		child: ExtendedFloatingActionButton,
+		target: View,
+		dxConsumed: Int,
+		dyConsumed: Int,
+		dxUnconsumed: Int,
+		dyUnconsumed: Int,
+		type: Int,
+		consumed: IntArray
+	) {
+		if (dyConsumed > 0) {
+			if (child.isExtended) {
+				child.shrink()
+			}
+		} else if (dyConsumed < 0) {
+			if (!child.isExtended) {
+				child.extend()
+			}
+		}
+	}
+}

app/src/main/java/org/koitharu/kotatsu/base/ui/widgets/ListItemTextView.kt

@@ -13,12 +13,12 @@ import android.graphics.drawable.shapes.RectShape
 import android.util.AttributeSet
 import androidx.annotation.AttrRes
 import androidx.appcompat.widget.AppCompatCheckedTextView
-import androidx.core.content.res.use
 import androidx.core.content.withStyledAttributes
 import com.google.android.material.ripple.RippleUtils
 import com.google.android.material.shape.MaterialShapeDrawable
 import com.google.android.material.shape.ShapeAppearanceModel
 import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.utils.ext.getThemeColorStateList
 
 @SuppressLint("RestrictedApi")
 class ListItemTextView @JvmOverloads constructor(
@@ -119,8 +119,7 @@ class ListItemTextView @JvmOverloads constructor(
 	}
 
 	private fun getRippleColorFallback(context: Context): ColorStateList {
-		return context.obtainStyledAttributes(intArrayOf(android.R.attr.colorControlHighlight)).use {
-			it.getColorStateList(0)
-		} ?: ColorStateList.valueOf(Color.TRANSPARENT)
+		return context.getThemeColorStateList(android.R.attr.colorControlHighlight)
+			?: ColorStateList.valueOf(Color.TRANSPARENT)
 	}
 }

app/src/main/java/org/koitharu/kotatsu/base/ui/widgets/WindowInsetHolder.kt

@@ -0,0 +1,72 @@
+package org.koitharu.kotatsu.base.ui.widgets
+
+import android.annotation.SuppressLint
+import android.content.Context
+import android.util.AttributeSet
+import android.view.Gravity
+import android.view.View
+import android.view.WindowInsets
+import android.widget.FrameLayout
+import android.widget.LinearLayout
+import androidx.annotation.AttrRes
+import androidx.coordinatorlayout.widget.CoordinatorLayout
+import androidx.core.view.WindowInsetsCompat
+
+class WindowInsetHolder @JvmOverloads constructor(
+	context: Context,
+	attrs: AttributeSet? = null,
+	@AttrRes defStyleAttr: Int = 0,
+) : View(context, attrs, defStyleAttr) {
+
+	private var desiredHeight = 0
+	private var desiredWidth = 0
+
+	@SuppressLint("RtlHardcoded")
+	override fun dispatchApplyWindowInsets(insets: WindowInsets): WindowInsets {
+		val barsInsets = WindowInsetsCompat.toWindowInsetsCompat(insets, this)
+			.getInsets(WindowInsetsCompat.Type.systemBars())
+		val gravity = getLayoutGravity()
+		val newWidth = when (gravity and Gravity.HORIZONTAL_GRAVITY_MASK) {
+			Gravity.LEFT -> barsInsets.left
+			Gravity.RIGHT -> barsInsets.right
+			else -> 0
+		}
+		val newHeight = when (gravity and Gravity.VERTICAL_GRAVITY_MASK) {
+			Gravity.TOP -> barsInsets.top
+			Gravity.BOTTOM -> barsInsets.bottom
+			else -> 0
+		}
+		if (newWidth != desiredWidth || newHeight != desiredHeight) {
+			desiredWidth = newWidth
+			desiredHeight = newHeight
+			requestLayout()
+		}
+		return super.dispatchApplyWindowInsets(insets)
+	}
+
+	override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) {
+		val widthMode = MeasureSpec.getMode(widthMeasureSpec)
+		val heightMode = MeasureSpec.getMode(heightMeasureSpec)
+		super.onMeasure(
+			if (desiredWidth == 0 || widthMode == MeasureSpec.EXACTLY) {
+				widthMeasureSpec
+			} else {
+				MeasureSpec.makeMeasureSpec(desiredWidth, widthMode)
+			},
+			if (desiredHeight == 0 || heightMode == MeasureSpec.EXACTLY) {
+				heightMeasureSpec
+			} else {
+				MeasureSpec.makeMeasureSpec(desiredHeight, heightMode)
+			},
+		)
+	}
+
+	private fun getLayoutGravity(): Int {
+		return when (val lp = layoutParams) {
+			is FrameLayout.LayoutParams -> lp.gravity
+			is LinearLayout.LayoutParams -> lp.gravity
+			is CoordinatorLayout.LayoutParams -> lp.gravity
+			else -> Gravity.NO_GRAVITY
+		}
+	}
+}

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

@@ -1,28 +1,9 @@
 package org.koitharu.kotatsu.core.db
 
-import androidx.room.Room
 import org.koin.android.ext.koin.androidContext
 import org.koin.dsl.module
-import org.koitharu.kotatsu.core.db.migrations.*
 
 val databaseModule
 	get() = module {
-		single {
-			Room.databaseBuilder(
-				androidContext(),
-				MangaDatabase::class.java,
-				"kotatsu-db"
-			).addMigrations(
-				Migration1To2(),
-				Migration2To3(),
-				Migration3To4(),
-				Migration4To5(),
-				Migration5To6(),
-				Migration6To7(),
-				Migration7To8(),
-				Migration8To9(),
-			).addCallback(
-				DatabasePrePopulateCallback(androidContext().resources)
-			).build()
-		}
+		single { MangaDatabase.create(androidContext()) }
 	}

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

@@ -1,9 +1,12 @@
 package org.koitharu.kotatsu.core.db
 
+import android.content.Context
 import androidx.room.Database
+import androidx.room.Room
 import androidx.room.RoomDatabase
 import org.koitharu.kotatsu.core.db.dao.*
 import org.koitharu.kotatsu.core.db.entity.*
+import org.koitharu.kotatsu.core.db.migrations.*
 import org.koitharu.kotatsu.favourites.data.FavouriteCategoriesDao
 import org.koitharu.kotatsu.favourites.data.FavouriteCategoryEntity
 import org.koitharu.kotatsu.favourites.data.FavouriteEntity
@@ -40,4 +43,24 @@ abstract class MangaDatabase : RoomDatabase() {
 	abstract val trackLogsDao: TrackLogsDao
 
 	abstract val suggestionDao: SuggestionDao
+
+	companion object {
+
+		fun create(context: Context): MangaDatabase = Room.databaseBuilder(
+			context,
+			MangaDatabase::class.java,
+			"kotatsu-db"
+		).addMigrations(
+			Migration1To2(),
+			Migration2To3(),
+			Migration3To4(),
+			Migration4To5(),
+			Migration5To6(),
+			Migration6To7(),
+			Migration7To8(),
+			Migration8To9(),
+		).addCallback(
+			DatabasePrePopulateCallback(context.resources)
+		).build()
+	}
 }

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

@@ -12,7 +12,7 @@ abstract class TagsDao {
 	@Query(
 		"""SELECT tags.* FROM tags
 		LEFT JOIN manga_tags ON tags.tag_id = manga_tags.tag_id
-		GROUP BY manga_tags.tag_id 
+		GROUP BY tags.title 
 		ORDER BY COUNT(manga_id) DESC 
 		LIMIT :limit"""
 	)
@@ -22,7 +22,7 @@ abstract class TagsDao {
 		"""SELECT tags.* FROM tags
 		LEFT JOIN manga_tags ON tags.tag_id = manga_tags.tag_id 
 		WHERE tags.source = :source 
-		GROUP BY manga_tags.tag_id 
+		GROUP BY tags.title
 		ORDER BY COUNT(manga_id) DESC 
 		LIMIT :limit"""
 	)
@@ -32,7 +32,7 @@ abstract class TagsDao {
 		"""SELECT tags.* FROM tags
 		LEFT JOIN manga_tags ON tags.tag_id = manga_tags.tag_id 
 		WHERE tags.source = :source AND title LIKE :query
-		GROUP BY manga_tags.tag_id 
+		GROUP BY tags.title
 		ORDER BY COUNT(manga_id) DESC 
 		LIMIT :limit"""
 	)
@@ -42,7 +42,7 @@ abstract class TagsDao {
 		"""SELECT tags.* FROM tags
 		LEFT JOIN manga_tags ON tags.tag_id = manga_tags.tag_id 
 		WHERE title LIKE :query
-		GROUP BY manga_tags.tag_id 
+		GROUP BY tags.title
 		ORDER BY COUNT(manga_id) DESC 
 		LIMIT :limit"""
 	)

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

@@ -0,0 +1,76 @@
+package org.koitharu.kotatsu.core.db.entity
+
+import java.util.*
+import org.koitharu.kotatsu.core.model.TrackingLogItem
+import org.koitharu.kotatsu.parsers.model.*
+import org.koitharu.kotatsu.parsers.util.longHashCode
+import org.koitharu.kotatsu.parsers.util.mapToSet
+import org.koitharu.kotatsu.parsers.util.toTitleCase
+
+// Entity to model
+
+fun TagEntity.toMangaTag() = MangaTag(
+	key = this.key,
+	title = this.title.toTitleCase(),
+	source = MangaSource.valueOf(this.source),
+)
+
+fun Collection<TagEntity>.toMangaTags() = mapToSet(TagEntity::toMangaTag)
+
+fun MangaEntity.toManga(tags: Set<MangaTag>) = Manga(
+	id = this.id,
+	title = this.title,
+	altTitle = this.altTitle,
+	state = this.state?.let { MangaState.valueOf(it) },
+	rating = this.rating,
+	isNsfw = this.isNsfw,
+	url = this.url,
+	publicUrl = this.publicUrl,
+	coverUrl = this.coverUrl,
+	largeCoverUrl = this.largeCoverUrl,
+	author = this.author,
+	source = MangaSource.valueOf(this.source),
+	tags = tags
+)
+
+fun MangaWithTags.toManga() = manga.toManga(tags.toMangaTags())
+
+fun TrackLogWithManga.toTrackingLogItem() = TrackingLogItem(
+	id = trackLog.id,
+	chapters = trackLog.chapters.split('\n').filterNot { x -> x.isEmpty() },
+	manga = manga.toManga(tags.toMangaTags()),
+	createdAt = Date(trackLog.createdAt)
+)
+
+// Model to entity
+
+fun Manga.toEntity() = MangaEntity(
+	id = id,
+	url = url,
+	publicUrl = publicUrl,
+	source = source.name,
+	largeCoverUrl = largeCoverUrl,
+	coverUrl = coverUrl,
+	altTitle = altTitle,
+	rating = rating,
+	isNsfw = isNsfw,
+	state = state?.name,
+	title = title,
+	author = author,
+)
+
+fun MangaTag.toEntity() = TagEntity(
+	title = title,
+	key = key,
+	source = source.name,
+	id = "${key}_${source.name}".longHashCode()
+)
+
+fun Collection<MangaTag>.toEntities() = map(MangaTag::toEntity)
+
+// Other
+
+@Suppress("FunctionName")
+fun SortOrder(name: String, fallback: SortOrder): SortOrder = runCatching {
+	SortOrder.valueOf(name)
+}.getOrDefault(fallback)

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

@@ -3,10 +3,6 @@ package org.koitharu.kotatsu.core.db.entity
 import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.PrimaryKey
-import org.koitharu.kotatsu.parsers.model.Manga
-import org.koitharu.kotatsu.parsers.model.MangaSource
-import org.koitharu.kotatsu.parsers.model.MangaState
-import org.koitharu.kotatsu.parsers.model.MangaTag
 
 @Entity(tableName = "manga")
 class MangaEntity(
@@ -16,46 +12,11 @@ class MangaEntity(
 	@ColumnInfo(name = "alt_title") val altTitle: String?,
 	@ColumnInfo(name = "url") val url: String,
 	@ColumnInfo(name = "public_url") val publicUrl: String,
-	@ColumnInfo(name = "rating") val rating: Float, //normalized value [0..1] or -1
+	@ColumnInfo(name = "rating") val rating: Float, // normalized value [0..1] or -1
 	@ColumnInfo(name = "nsfw") val isNsfw: Boolean,
 	@ColumnInfo(name = "cover_url") val coverUrl: String,
 	@ColumnInfo(name = "large_cover_url") val largeCoverUrl: String?,
 	@ColumnInfo(name = "state") val state: String?,
 	@ColumnInfo(name = "author") val author: String?,
 	@ColumnInfo(name = "source") val source: String
-) {
-
-	fun toManga(tags: Set<MangaTag> = emptySet()) = Manga(
-		id = this.id,
-		title = this.title,
-		altTitle = this.altTitle,
-		state = this.state?.let { MangaState.valueOf(it) },
-		rating = this.rating,
-		isNsfw = this.isNsfw,
-		url = this.url,
-		publicUrl = this.publicUrl,
-		coverUrl = this.coverUrl,
-		largeCoverUrl = this.largeCoverUrl,
-		author = this.author,
-		source = MangaSource.valueOf(this.source),
-		tags = tags
-	)
-
-	companion object {
-
-		fun from(manga: Manga) = MangaEntity(
-			id = manga.id,
-			url = manga.url,
-			publicUrl = manga.publicUrl,
-			source = manga.source.name,
-			largeCoverUrl = manga.largeCoverUrl,
-			coverUrl = manga.coverUrl,
-			altTitle = manga.altTitle,
-			rating = manga.rating,
-			isNsfw = manga.isNsfw,
-			state = manga.state?.name,
-			title = manga.title,
-			author = manga.author
-		)
-	}
-}
+)

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

@@ -6,13 +6,15 @@ import androidx.room.ForeignKey
 import androidx.room.PrimaryKey
 
 @Entity(
-	tableName = "preferences", foreignKeys = [
+	tableName = "preferences",
+	foreignKeys = [
 		ForeignKey(
 			entity = MangaEntity::class,
 			parentColumns = ["manga_id"],
 			childColumns = ["manga_id"],
 			onDelete = ForeignKey.CASCADE
-		)]
+		)
+	]
 )
 class MangaPrefsEntity(
 	@PrimaryKey(autoGenerate = false)

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

@@ -5,7 +5,8 @@ import androidx.room.Entity
 import androidx.room.ForeignKey
 
 @Entity(
-	tableName = "manga_tags", primaryKeys = ["manga_id", "tag_id"], foreignKeys = [
+	tableName = "manga_tags", primaryKeys = ["manga_id", "tag_id"],
+	foreignKeys = [
 		ForeignKey(
 			entity = MangaEntity::class,
 			parentColumns = ["manga_id"],

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

@@ -3,7 +3,6 @@ package org.koitharu.kotatsu.core.db.entity
 import androidx.room.Embedded
 import androidx.room.Junction
 import androidx.room.Relation
-import org.koitharu.kotatsu.utils.ext.mapToSet
 
 class MangaWithTags(
 	@Embedded val manga: MangaEntity,
@@ -12,10 +11,5 @@ class MangaWithTags(
 		entityColumn = "tag_id",
 		associateBy = Junction(MangaTagsEntity::class)
 	)
-	val tags: List<TagEntity>
-) {
-
-	fun toManga() = manga.toManga(tags.mapToSet {
-		it.toMangaTag()
-	})
-}
+	val tags: List<TagEntity>,
+)

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

@@ -3,10 +3,6 @@ package org.koitharu.kotatsu.core.db.entity
 import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.PrimaryKey
-import org.koitharu.kotatsu.parsers.model.MangaSource
-import org.koitharu.kotatsu.parsers.model.MangaTag
-import org.koitharu.kotatsu.parsers.util.longHashCode
-import org.koitharu.kotatsu.parsers.util.toTitleCase
 
 @Entity(tableName = "tags")
 class TagEntity(
@@ -15,21 +11,4 @@ class TagEntity(
 	@ColumnInfo(name = "title") val title: String,
 	@ColumnInfo(name = "key") val key: String,
 	@ColumnInfo(name = "source") val source: String
-) {
-
-	fun toMangaTag() = MangaTag(
-		key = this.key,
-		title = this.title.toTitleCase(),
-		source = MangaSource.valueOf(this.source)
-	)
-
-	companion object {
-
-		fun fromMangaTag(tag: MangaTag) = TagEntity(
-			title = tag.title,
-			key = tag.key,
-			source = tag.source.name,
-			id = "${tag.key}_${tag.source.name}".longHashCode()
-		)
-	}
-}
+)

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

@@ -6,7 +6,8 @@ import androidx.room.ForeignKey
 import androidx.room.PrimaryKey
 
 @Entity(
-	tableName = "tracks", foreignKeys = [
+	tableName = "tracks",
+	foreignKeys = [
 		ForeignKey(
 			entity = MangaEntity::class,
 			parentColumns = ["manga_id"],

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

@@ -6,7 +6,8 @@ import androidx.room.ForeignKey
 import androidx.room.PrimaryKey
 
 @Entity(
-	tableName = "track_logs", foreignKeys = [
+	tableName = "track_logs",
+	foreignKeys = [
 		ForeignKey(
 			entity = MangaEntity::class,
 			parentColumns = ["manga_id"],
@@ -20,5 +21,5 @@ class TrackLogEntity(
 	@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()
+	@ColumnInfo(name = "created_at") val createdAt: Long = System.currentTimeMillis(),
 )

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

@@ -3,9 +3,6 @@ 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 org.koitharu.kotatsu.utils.ext.mapToSet
-import java.util.*
 
 class TrackLogWithManga(
 	@Embedded val trackLog: TrackLogEntity,
@@ -19,13 +16,5 @@ class TrackLogWithManga(
 		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.mapToSet { x -> x.toMangaTag() }),
-		createdAt = Date(trackLog.createdAt)
-	)
-}
+	val tags: List<TagEntity>,
+)

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

@@ -1,25 +1,6 @@
 package org.koitharu.kotatsu.core.model
 
 import org.koitharu.kotatsu.parsers.model.Manga
+import org.koitharu.kotatsu.parsers.util.mapToSet
 
-fun Manga.withoutChapters() = if (chapters.isNullOrEmpty()) {
-	this
-} else {
-	Manga(
-		id = id,
-		title = title,
-		altTitle = altTitle,
-		url = url,
-		publicUrl = publicUrl,
-		rating = rating,
-		isNsfw = isNsfw,
-		coverUrl = coverUrl,
-		tags = tags,
-		state = state,
-		author = author,
-		largeCoverUrl = largeCoverUrl,
-		description = description,
-		chapters = null,
-		source = source,
-	)
-}
+fun Collection<Manga>.ids() = mapToSet { it.id }

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

@@ -4,7 +4,7 @@ import android.os.Parcel
 import androidx.core.os.ParcelCompat
 import org.koitharu.kotatsu.parsers.model.*
 
-fun Manga.writeToParcel(out: Parcel, flags: Int) {
+fun Manga.writeToParcel(out: Parcel, flags: Int, withChapters: Boolean) {
 	out.writeLong(id)
 	out.writeString(title)
 	out.writeString(altTitle)
@@ -18,7 +18,11 @@ fun Manga.writeToParcel(out: Parcel, flags: Int) {
 	out.writeParcelable(ParcelableMangaTags(tags), flags)
 	out.writeSerializable(state)
 	out.writeString(author)
-	out.writeParcelable(chapters?.let(::ParcelableMangaChapters), flags)
+	if (withChapters) {
+		out.writeParcelable(chapters?.let(::ParcelableMangaChapters), flags)
+	} else {
+		out.writeString(null)
+	}
 	out.writeSerializable(source)
 }
 

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

@@ -2,24 +2,39 @@ package org.koitharu.kotatsu.core.model.parcelable
 
 import android.os.Parcel
 import android.os.Parcelable
-import android.util.Log
-import org.koitharu.kotatsu.BuildConfig
 import org.koitharu.kotatsu.parsers.model.Manga
 
+// Limits to avoid TransactionTooLargeException
+private const val MAX_SAFE_SIZE = 1024 * 512 // Assume that 512 kb is safe parcel size
+private const val MAX_SAFE_CHAPTERS_COUNT = 40 // this is 100% safe
+
 class ParcelableManga(
 	val manga: Manga,
+	private val withChapters: Boolean,
 ) : Parcelable {
 
-	constructor(parcel: Parcel) : this(parcel.readManga())
-
-	init {
-		if (BuildConfig.DEBUG && manga.chapters != null) {
-			Log.w("ParcelableManga", "Passing manga with chapters as Parcelable is dangerous!")
-		}
-	}
+	constructor(parcel: Parcel) : this(parcel.readManga(), true)
 
 	override fun writeToParcel(parcel: Parcel, flags: Int) {
-		manga.writeToParcel(parcel, flags)
+		val chapters = manga.chapters
+		if (!withChapters || chapters == null) {
+			manga.writeToParcel(parcel, flags, withChapters = false)
+			return
+		}
+		if (chapters.size <= MAX_SAFE_CHAPTERS_COUNT) {
+			// fast path
+			manga.writeToParcel(parcel, flags, withChapters = true)
+			return
+		}
+		val tempParcel = Parcel.obtain()
+		manga.writeToParcel(tempParcel, flags, withChapters = true)
+		val size = tempParcel.dataSize()
+		if (size < MAX_SAFE_SIZE) {
+			parcel.appendFrom(tempParcel, 0, size)
+		} else {
+			manga.writeToParcel(parcel, flags, withChapters = false)
+		}
+		tempParcel.recycle()
 	}
 
 	override fun describeContents(): Int {

app/src/main/java/org/koitharu/kotatsu/core/network/CurlLoggingInterceptor.kt

@@ -1,56 +0,0 @@
-package org.koitharu.kotatsu.core.network
-
-import android.util.Log
-import okhttp3.Interceptor
-import okhttp3.Request
-import okhttp3.Response
-import okio.Buffer
-import java.io.IOException
-import java.nio.charset.StandardCharsets
-
-private const val TAG = "CURL"
-
-class CurlLoggingInterceptor(
-	private val extraCurlOptions: String? = null,
-) : Interceptor {
-
-	@Throws(IOException::class)
-	override fun intercept(chain: Interceptor.Chain): Response {
-		val request: Request = chain.request()
-		var compressed = false
-		val curlCmd = StringBuilder("curl")
-		if (extraCurlOptions != null) {
-			curlCmd.append(" ").append(extraCurlOptions)
-		}
-		curlCmd.append(" -X ").append(request.method)
-		val headers = request.headers
-		var i = 0
-		val count = headers.size
-		while (i < count) {
-			val name = headers.name(i)
-			val value = headers.value(i)
-			if ("Accept-Encoding".equals(name, ignoreCase = true) && "gzip".equals(value,
-					ignoreCase = true)
-			) {
-				compressed = true
-			}
-			curlCmd.append(" -H " + "\"").append(name).append(": ").append(value).append("\"")
-			i++
-		}
-		val requestBody = request.body
-		if (requestBody != null) {
-			val buffer = Buffer()
-			requestBody.writeTo(buffer)
-			val contentType = requestBody.contentType()
-			val charset = contentType?.charset(StandardCharsets.UTF_8) ?: StandardCharsets.UTF_8
-			curlCmd.append(" --data $'")
-				.append(buffer.readString(charset).replace("\n", "\\n"))
-				.append("'")
-		}
-		curlCmd.append(if (compressed) " --compressed " else " ").append(request.url)
-		Log.d(TAG, "╭--- cURL (" + request.url + ")")
-		Log.d(TAG, curlCmd.toString())
-		Log.d(TAG, "╰--- (copy and paste the above line to a terminal)")
-		return chain.proceed(request)
-	}
-}

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

@@ -5,7 +5,6 @@ import okhttp3.CookieJar
 import okhttp3.OkHttpClient
 import org.koin.dsl.bind
 import org.koin.dsl.module
-import org.koitharu.kotatsu.BuildConfig
 import org.koitharu.kotatsu.core.parser.MangaLoaderContextImpl
 import org.koitharu.kotatsu.local.data.LocalStorageManager
 import org.koitharu.kotatsu.parsers.MangaLoaderContext
@@ -22,9 +21,6 @@ val networkModule
 				cache(get<LocalStorageManager>().createHttpCache())
 				addInterceptor(UserAgentInterceptor())
 				addInterceptor(CloudFlareInterceptor())
-				if (BuildConfig.DEBUG) {
-					addNetworkInterceptor(CurlLoggingInterceptor())
-				}
 			}.build()
 		}
 		single<MangaLoaderContext> { MangaLoaderContextImpl(get(), get(), get()) }

app/src/main/java/org/koitharu/kotatsu/core/os/ShortcutsRepository.kt

@@ -24,7 +24,7 @@ class ShortcutsRepository(
 	private val context: Context,
 	private val coil: ImageLoader,
 	private val historyRepository: HistoryRepository,
-	private val mangaRepository: MangaDataRepository
+	private val mangaRepository: MangaDataRepository,
 ) {
 
 	private val iconSize by lazy {

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

@@ -11,6 +11,10 @@ import androidx.collection.arraySetOf
 import androidx.core.content.edit
 import androidx.preference.PreferenceManager
 import com.google.android.material.color.DynamicColors
+import java.io.File
+import java.text.DateFormat
+import java.text.SimpleDateFormat
+import java.util.*
 import kotlinx.coroutines.channels.awaitClose
 import kotlinx.coroutines.channels.trySendBlocking
 import kotlinx.coroutines.flow.callbackFlow
@@ -19,10 +23,6 @@ import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.utils.ext.getEnumValue
 import org.koitharu.kotatsu.utils.ext.putEnumValue
 import org.koitharu.kotatsu.utils.ext.toUriOrNull
-import java.io.File
-import java.text.DateFormat
-import java.text.SimpleDateFormat
-import java.util.*
 
 class AppSettings(context: Context) {
 
@@ -165,6 +165,18 @@ class AppSettings(context: Context) {
 			else -> SimpleDateFormat(format, Locale.getDefault())
 		}
 
+	fun getSuggestionsTagsBlacklistRegex(): Regex? {
+		val string = prefs.getString(KEY_SUGGESTIONS_EXCLUDE_TAGS, null)?.trimEnd(' ', ',')
+		if (string.isNullOrEmpty()) {
+			return null
+		}
+		val tags = string.split(',')
+		val regex = tags.joinToString(prefix = "(", separator = "|", postfix = ")") { tag ->
+			Regex.escape(tag.trim())
+		}
+		return Regex(regex, RegexOption.IGNORE_CASE)
+	}
+
 	fun getMangaSources(includeHidden: Boolean): List<MangaSource> {
 		val list = MangaSource.values().toMutableList()
 		list.remove(MangaSource.LOCAL)
@@ -247,17 +259,16 @@ class AppSettings(context: Context) {
 		const val KEY_PAGES_PRELOAD = "pages_preload"
 		const val KEY_SUGGESTIONS = "suggestions"
 		const val KEY_SUGGESTIONS_EXCLUDE_NSFW = "suggestions_exclude_nsfw"
+		const val KEY_SUGGESTIONS_EXCLUDE_TAGS = "suggestions_exclude_tags"
 		const val KEY_SEARCH_SINGLE_SOURCE = "search_single_source"
 
 		// About
 		const val KEY_APP_UPDATE = "app_update"
 		const val KEY_APP_UPDATE_AUTO = "app_update_auto"
 		const val KEY_APP_TRANSLATION = "about_app_translation"
-		const val KEY_APP_GRATITUDES = "about_gratitudes"
 		const val KEY_FEEDBACK_4PDA = "about_feedback_4pda"
 		const val KEY_FEEDBACK_DISCORD = "about_feedback_discord"
 		const val KEY_FEEDBACK_GITHUB = "about_feedback_github"
-		const val KEY_SUPPORT_DEVELOPER = "about_support_developer"
 
 		private const val NETWORK_NEVER = 0
 		private const val NETWORK_ALWAYS = 1
@@ -270,4 +281,4 @@ class AppSettings(context: Context) {
 		private val isSamsung
 			get() = Build.MANUFACTURER.equals("samsung", ignoreCase = true)
 	}
-}
+}

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

@@ -178,9 +178,7 @@ class ChaptersFragment :
 	override fun onNothingSelected(parent: AdapterView<*>?) = Unit
 
 	override fun onCreateActionMode(mode: ActionMode, menu: Menu): Boolean {
-		val manga = viewModel.manga.value
 		mode.menuInflater.inflate(R.menu.mode_chapters, menu)
-		mode.title = manga?.title
 		return true
 	}
 
@@ -190,12 +188,7 @@ class ChaptersFragment :
 		menu.findItem(R.id.action_save).isVisible = items.none { x ->
 			x.chapter.source == MangaSource.LOCAL
 		}
-		mode.subtitle = resources.getQuantityString(
-			R.plurals.chapters_from_x,
-			items.size,
-			items.size,
-			chaptersAdapter?.itemCount ?: 0
-		)
+		mode.title = items.size.toString()
 		return true
 	}
 

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

@@ -4,7 +4,6 @@ import android.content.BroadcastReceiver
 import android.content.Context
 import android.content.Intent
 import android.content.IntentFilter
-import android.net.Uri
 import android.os.Bundle
 import android.view.Menu
 import android.view.MenuItem
@@ -17,6 +16,7 @@ import androidx.appcompat.view.ActionMode
 import androidx.core.content.pm.ShortcutManagerCompat
 import androidx.core.graphics.Insets
 import androidx.core.net.toFile
+import androidx.core.net.toUri
 import androidx.core.view.isVisible
 import androidx.core.view.updateLayoutParams
 import androidx.core.view.updatePadding
@@ -163,7 +163,7 @@ class DetailsActivity : BaseActivity<ActivityDetailsBinding>(), TabLayoutMediato
 		R.id.action_share -> {
 			viewModel.manga.value?.let {
 				if (it.source == MangaSource.LOCAL) {
-					ShareHelper(this).shareCbz(Uri.parse(it.url).toFile())
+					ShareHelper(this).shareCbz(listOf(it.url.toUri().toFile()))
 				} else {
 					ShareHelper(this).shareMangaLink(it)
 				}
@@ -332,7 +332,7 @@ class DetailsActivity : BaseActivity<ActivityDetailsBinding>(), TabLayoutMediato
 
 		fun newIntent(context: Context, manga: Manga): Intent {
 			return Intent(context, DetailsActivity::class.java)
-				.putExtra(MangaIntent.KEY_MANGA, ParcelableManga(manga))
+				.putExtra(MangaIntent.KEY_MANGA, ParcelableManga(manga, withChapters = true))
 		}
 
 		fun newIntent(context: Context, mangaId: Long): Intent {

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

@@ -5,6 +5,7 @@ import android.os.Bundle
 import android.text.Spanned
 import android.text.method.LinkMovementMethod
 import android.view.*
+import androidx.appcompat.widget.PopupMenu
 import androidx.core.content.ContextCompat
 import androidx.core.graphics.Insets
 import androidx.core.net.toUri
@@ -224,14 +225,16 @@ class DetailsFragment :
 				if (viewModel.readingHistory.value == null) {
 					return false
 				}
-				v.showPopupMenu(R.menu.popup_read) {
-					when (it.itemId) {
+				val menu = PopupMenu(v.context, v)
+				menu.inflate(R.menu.popup_read)
+				menu.setOnMenuItemClickListener { menuItem ->
+					when (menuItem.itemId) {
 						R.id.action_read -> {
 							val branch = viewModel.selectedBranchValue
 							startActivity(
 								ReaderActivity.newIntent(
-									context = context ?: return@showPopupMenu false,
-									manga = viewModel.manga.value ?: return@showPopupMenu false,
+									context = context ?: return@setOnMenuItemClickListener false,
+									manga = viewModel.manga.value ?: return@setOnMenuItemClickListener false,
 									state = viewModel.chapters.value?.firstOrNull { c ->
 										c.chapter.branch == branch
 									}?.let { c ->
@@ -244,6 +247,7 @@ class DetailsFragment :
 						else -> false
 					}
 				}
+				menu.show()
 				return true
 			}
 			else -> return false

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

@@ -24,11 +24,11 @@ import org.koitharu.kotatsu.local.domain.LocalMangaRepository
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaChapter
 import org.koitharu.kotatsu.parsers.model.MangaSource
+import org.koitharu.kotatsu.parsers.util.mapToSet
 import org.koitharu.kotatsu.parsers.util.toTitleCase
 import org.koitharu.kotatsu.tracker.domain.TrackingRepository
 import org.koitharu.kotatsu.utils.SingleLiveEvent
 import org.koitharu.kotatsu.utils.ext.iterator
-import org.koitharu.kotatsu.utils.ext.mapToSet
 import java.io.IOException
 
 class DetailsViewModel(
@@ -191,7 +191,8 @@ class DetailsViewModel(
 		// find default branch
 		val hist = historyRepository.getOne(manga)
 		selectedBranch.value = if (hist != null) {
-			manga.chapters?.find { it.id == hist.chapterId }?.branch
+			val currentChapter = manga.chapters?.find { it.id == hist.chapterId }
+			if (currentChapter != null) currentChapter.branch else predictBranch(manga.chapters)
 		} else {
 			predictBranch(manga.chapters)
 		}
@@ -203,6 +204,8 @@ class DetailsViewModel(
 			} else {
 				localMangaRepository.findSavedManga(manga)
 			}
+		}.onFailure { error ->
+			if (BuildConfig.DEBUG) error.printStackTrace()
 		}.getOrNull()
 	}
 

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

@@ -6,7 +6,7 @@ import android.view.ViewGroup
 import android.widget.BaseAdapter
 import android.widget.TextView
 import org.koitharu.kotatsu.R
-import org.koitharu.kotatsu.utils.ext.replaceWith
+import org.koitharu.kotatsu.parsers.util.replaceWith
 
 class BranchesAdapter : BaseAdapter() {
 

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

@@ -2,69 +2,32 @@ package org.koitharu.kotatsu.details.ui.adapter
 
 import android.content.Context
 import android.graphics.Canvas
+import android.graphics.Color
 import android.graphics.Paint
-import android.graphics.Rect
-import androidx.core.content.ContextCompat
-import androidx.core.view.children
+import android.graphics.RectF
+import android.view.View
 import androidx.recyclerview.widget.RecyclerView
-import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.base.ui.list.decor.AbstractSelectionItemDecoration
+import org.koitharu.kotatsu.utils.ext.getThemeColor
+import com.google.android.material.R as materialR
 
-class ChaptersSelectionDecoration(context: Context) : RecyclerView.ItemDecoration() {
+class ChaptersSelectionDecoration(context: Context) : AbstractSelectionItemDecoration() {
 
-	private val bounds = Rect()
-	private val selection = HashSet<Long>()
 	private val paint = Paint(Paint.ANTI_ALIAS_FLAG)
+	private val radius = context.resources.getDimension(materialR.dimen.abc_control_corner_material)
 
 	init {
-		paint.color = ContextCompat.getColor(context, R.color.selector_foreground)
+		paint.color = context.getThemeColor(materialR.attr.colorSecondaryContainer, Color.LTGRAY)
 		paint.style = Paint.Style.FILL
 	}
 
-	val checkedItemsCount: Int
-		get() = selection.size
-
-	val checkedItemsIds: Set<Long>
-		get() = selection
-
-	fun toggleItemChecked(id: Long) {
-		if (!selection.remove(id)) {
-			selection.add(id)
-		}
-	}
-
-	fun setItemIsChecked(id: Long, isChecked: Boolean) {
-		if (isChecked) {
-			selection.add(id)
-		} else {
-			selection.remove(id)
-		}
-	}
-
-	fun checkAll(ids: Collection<Long>) {
-		selection.addAll(ids)
-	}
-
-	fun clearSelection() {
-		selection.clear()
-	}
-
-	override fun onDraw(canvas: Canvas, parent: RecyclerView, state: RecyclerView.State) {
-		canvas.save()
-		if (parent.clipToPadding) {
-			canvas.clipRect(
-				parent.paddingLeft, parent.paddingTop, parent.width - parent.paddingRight,
-				parent.height - parent.paddingBottom
-			)
-		}
-
-		for (child in parent.children) {
-			val itemId = parent.getChildItemId(child)
-			if (itemId in selection) {
-				parent.getDecoratedBoundsWithMargins(child, bounds)
-				bounds.offset(child.translationX.toInt(), child.translationY.toInt())
-				canvas.drawRect(bounds, paint)
-			}
-		}
-		canvas.restore()
+	override fun onDrawBackground(
+		canvas: Canvas,
+		parent: RecyclerView,
+		child: View,
+		bounds: RectF,
+		state: RecyclerView.State,
+	) {
+		canvas.drawRoundRect(bounds, radius, radius, paint)
 	}
 }

app/src/main/java/org/koitharu/kotatsu/download/domain/DownloadManager.kt

@@ -7,6 +7,7 @@ import android.webkit.MimeTypeMap
 import coil.ImageLoader
 import coil.request.ImageRequest
 import coil.size.Scale
+import java.io.File
 import kotlinx.coroutines.*
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.sync.Semaphore
@@ -21,12 +22,12 @@ import org.koitharu.kotatsu.local.data.MangaZip
 import org.koitharu.kotatsu.local.data.PagesCache
 import org.koitharu.kotatsu.local.domain.LocalMangaRepository
 import org.koitharu.kotatsu.parsers.model.Manga
+import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.util.await
 import org.koitharu.kotatsu.utils.ext.deleteAwait
 import org.koitharu.kotatsu.utils.ext.referer
 import org.koitharu.kotatsu.utils.ext.waitForNetwork
 import org.koitharu.kotatsu.utils.progress.ProgressJob
-import java.io.File
 
 private const val MAX_DOWNLOAD_ATTEMPTS = 3
 private const val MAX_PARALLEL_DOWNLOADS = 2
@@ -55,22 +56,24 @@ class DownloadManager(
 
 	fun downloadManga(
 		manga: Manga,
-		chaptersIds: Set<Long>?,
+		chaptersIds: LongArray?,
 		startId: Int,
 	): ProgressJob<DownloadState> {
 		val stateFlow = MutableStateFlow<DownloadState>(
 			DownloadState.Queued(startId = startId, manga = manga, cover = null)
 		)
-		val job = downloadMangaImpl(manga, chaptersIds, stateFlow, startId)
+		val job = downloadMangaImpl(manga, chaptersIds?.takeUnless { it.isEmpty() }, stateFlow, startId)
 		return ProgressJob(job, stateFlow)
 	}
 
 	private fun downloadMangaImpl(
 		manga: Manga,
-		chaptersIds: Set<Long>?,
+		chaptersIds: LongArray?,
 		outState: MutableStateFlow<DownloadState>,
 		startId: Int,
 	): Job = coroutineScope.launch(Dispatchers.Default + errorStateHandler(outState)) {
+		@Suppress("NAME_SHADOWING") var manga = manga
+		val chaptersIdsSet = chaptersIds?.toMutableSet()
 		semaphore.acquire()
 		coroutineContext[WakeLockNode]?.acquire()
 		outState.value = DownloadState.Preparing(startId, manga, null)
@@ -79,6 +82,9 @@ class DownloadManager(
 		checkNotNull(destination) { context.getString(R.string.cannot_find_available_storage) }
 		var output: MangaZip? = null
 		try {
+			if (manga.source == MangaSource.LOCAL) {
+				manga = localMangaRepository.getRemoteManga(manga) ?: error("Cannot obtain remote manga instance")
+			}
 			val repo = MangaRepository(manga.source)
 			cover = runCatching {
 				imageLoader.execute(
@@ -91,48 +97,51 @@ class DownloadManager(
 				).drawable
 			}.getOrNull()
 			outState.value = DownloadState.Preparing(startId, manga, cover)
-			val data = if (manga.chapters == null) repo.getDetails(manga) else manga
+			val data = if (manga.chapters.isNullOrEmpty()) repo.getDetails(manga) else manga
 			output = MangaZip.findInDir(destination, data)
 			output.prepare(data)
 			val coverUrl = data.largeCoverUrl ?: data.coverUrl
 			downloadFile(coverUrl, data.publicUrl, destination).let { file ->
 				output.addCover(file, MimeTypeMap.getFileExtensionFromUrl(coverUrl))
 			}
-			val chapters = if (chaptersIds == null) {
-				data.chapters.orEmpty()
-			} else {
-				data.chapters.orEmpty().filter { x -> x.id in chaptersIds }
+			val chapters = checkNotNull(
+				if (chaptersIdsSet == null) {
+					data.chapters
+				} else {
+					data.chapters?.filter { x -> chaptersIdsSet.remove(x.id) }
+				}
+			) { "Chapters list must not be null" }
+			check(chapters.isNotEmpty()) { "Chapters list must not be empty" }
+			check(chaptersIdsSet.isNullOrEmpty()) {
+				"${chaptersIdsSet?.size} of ${chaptersIds?.size} requested chapters not found in manga"
 			}
 			for ((chapterIndex, chapter) in chapters.withIndex()) {
-				if (chaptersIds == null || chapter.id in chaptersIds) {
-					val pages = repo.getPages(chapter)
-					for ((pageIndex, page) in pages.withIndex()) {
-						failsafe@ do {
-							try {
-								val url = repo.getPageUrl(page)
-								val file =
-									cache[url] ?: downloadFile(url, page.referer, destination)
-								output.addPage(
-									chapter,
-									file,
-									pageIndex,
-									MimeTypeMap.getFileExtensionFromUrl(url)
-								)
-							} catch (e: IOException) {
-								outState.value = DownloadState.WaitingForNetwork(startId, data, cover)
-								connectivityManager.waitForNetwork()
-								continue@failsafe
-							}
-						} while (false)
+				val pages = repo.getPages(chapter)
+				for ((pageIndex, page) in pages.withIndex()) {
+					failsafe@ do {
+						try {
+							val url = repo.getPageUrl(page)
+							val file = cache[url] ?: downloadFile(url, page.referer, destination)
+							output.addPage(
+								chapter = chapter,
+								file = file,
+								pageNumber = pageIndex,
+								ext = MimeTypeMap.getFileExtensionFromUrl(url),
+							)
+						} catch (e: IOException) {
+							outState.value = DownloadState.WaitingForNetwork(startId, data, cover)
+							connectivityManager.waitForNetwork()
+							continue@failsafe
+						}
+					} while (false)
 
-						outState.value = DownloadState.Progress(
-							startId, data, cover,
-							totalChapters = chapters.size,
-							currentChapter = chapterIndex,
-							totalPages = pages.size,
-							currentPage = pageIndex,
-						)
-					}
+					outState.value = DownloadState.Progress(
+						startId, data, cover,
+						totalChapters = chapters.size,
+						currentChapter = chapterIndex,
+						totalPages = pages.size,
+						currentPage = pageIndex,
+					)
 				}
 			}
 			outState.value = DownloadState.PostProcessing(startId, data, cover)
@@ -141,8 +150,9 @@ class DownloadManager(
 			}
 			val localManga = localMangaRepository.getFromFile(output.file)
 			outState.value = DownloadState.Done(startId, data, cover, localManga)
-		} catch (_: CancellationException) {
+		} catch (e: CancellationException) {
 			outState.value = DownloadState.Cancelled(startId, manga, cover)
+			throw e
 		} catch (e: Throwable) {
 			if (BuildConfig.DEBUG) {
 				e.printStackTrace()
@@ -188,13 +198,14 @@ class DownloadManager(
 		}
 	}
 
-	private fun errorStateHandler(outState: MutableStateFlow<DownloadState>) = CoroutineExceptionHandler { _, throwable ->
-		val prevValue = outState.value
-		outState.value = DownloadState.Error(
-			startId = prevValue.startId,
-			manga = prevValue.manga,
-			cover = prevValue.cover,
-			error = throwable,
-		)
-	}
+	private fun errorStateHandler(outState: MutableStateFlow<DownloadState>) =
+		CoroutineExceptionHandler { _, throwable ->
+			val prevValue = outState.value
+			outState.value = DownloadState.Error(
+				startId = prevValue.startId,
+				manga = prevValue.manga,
+				cover = prevValue.cover,
+				error = throwable,
+			)
+		}
 }

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

@@ -10,6 +10,7 @@ import kotlinx.coroutines.flow.onEach
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.databinding.ItemDownloadBinding
 import org.koitharu.kotatsu.download.domain.DownloadState
+import org.koitharu.kotatsu.parsers.util.format
 import org.koitharu.kotatsu.utils.ext.*
 import org.koitharu.kotatsu.utils.progress.ProgressJob
 

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

@@ -16,8 +16,8 @@ import org.koitharu.kotatsu.details.ui.DetailsActivity
 import org.koitharu.kotatsu.download.domain.DownloadState
 import org.koitharu.kotatsu.download.ui.DownloadsActivity
 import org.koitharu.kotatsu.parsers.model.Manga
+import org.koitharu.kotatsu.parsers.util.format
 import org.koitharu.kotatsu.utils.PendingIntentCompat
-import org.koitharu.kotatsu.utils.ext.format
 import org.koitharu.kotatsu.utils.ext.getDisplayMessage
 import com.google.android.material.R as materialR
 

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

@@ -10,6 +10,7 @@ import android.os.PowerManager
 import android.widget.Toast
 import androidx.core.content.ContextCompat
 import androidx.lifecycle.lifecycleScope
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.mapLatest
@@ -23,7 +24,6 @@ import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.base.ui.BaseService
 import org.koitharu.kotatsu.base.ui.dialog.CheckBoxAlertDialog
 import org.koitharu.kotatsu.core.model.parcelable.ParcelableManga
-import org.koitharu.kotatsu.core.model.withoutChapters
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.download.domain.DownloadManager
 import org.koitharu.kotatsu.download.domain.DownloadState
@@ -31,10 +31,8 @@ import org.koitharu.kotatsu.download.domain.WakeLockNode
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.utils.ext.connectivityManager
 import org.koitharu.kotatsu.utils.ext.throttle
-import org.koitharu.kotatsu.utils.ext.toArraySet
 import org.koitharu.kotatsu.utils.progress.ProgressJob
 import java.util.concurrent.TimeUnit
-import kotlin.collections.set
 
 class DownloadService : BaseService() {
 
@@ -66,11 +64,10 @@ class DownloadService : BaseService() {
 	override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
 		super.onStartCommand(intent, flags, startId)
 		val manga = intent?.getParcelableExtra<ParcelableManga>(EXTRA_MANGA)?.manga
-		val chapters = intent?.getLongArrayExtra(EXTRA_CHAPTERS_IDS)?.toArraySet()
+		val chapters = intent?.getLongArrayExtra(EXTRA_CHAPTERS_IDS)
 		return if (manga != null) {
 			jobs[startId] = downloadManga(startId, manga, chapters)
 			jobCount.value = jobs.size
-			Toast.makeText(this, R.string.manga_downloading_, Toast.LENGTH_SHORT).show()
 			START_REDELIVER_INTENT
 		} else {
 			stopSelf(startId)
@@ -97,7 +94,7 @@ class DownloadService : BaseService() {
 	private fun downloadManga(
 		startId: Int,
 		manga: Manga,
-		chaptersIds: Set<Long>?,
+		chaptersIds: LongArray?,
 	): ProgressJob<DownloadState> {
 		val job = downloadManager.downloadManga(manga, chaptersIds, startId)
 		listenJob(job)
@@ -119,7 +116,7 @@ class DownloadService : BaseService() {
 			(job.progressValue as? DownloadState.Done)?.let {
 				sendBroadcast(
 					Intent(ACTION_DOWNLOAD_COMPLETE)
-						.putExtra(EXTRA_MANGA, ParcelableManga(it.localManga.withoutChapters()))
+						.putExtra(EXTRA_MANGA, ParcelableManga(it.localManga, withChapters = false))
 				)
 			}
 			notificationSwitcher.detach(
@@ -179,14 +176,38 @@ class DownloadService : BaseService() {
 			}
 			confirmDataTransfer(context) {
 				val intent = Intent(context, DownloadService::class.java)
-				intent.putExtra(EXTRA_MANGA, ParcelableManga(manga))
+				intent.putExtra(EXTRA_MANGA, ParcelableManga(manga, withChapters = false))
 				if (chaptersIds != null) {
 					intent.putExtra(EXTRA_CHAPTERS_IDS, chaptersIds.toLongArray())
 				}
 				ContextCompat.startForegroundService(context, intent)
+				Toast.makeText(context, R.string.manga_downloading_, Toast.LENGTH_SHORT).show()
 			}
 		}
 
+		fun start(context: Context, manga: Collection<Manga>) {
+			if (manga.isEmpty()) {
+				return
+			}
+			confirmDataTransfer(context) {
+				for (item in manga) {
+					val intent = Intent(context, DownloadService::class.java)
+					intent.putExtra(EXTRA_MANGA, ParcelableManga(item, withChapters = false))
+					ContextCompat.startForegroundService(context, intent)
+				}
+			}
+		}
+
+		fun confirmAndStart(context: Context, items: Set<Manga>) {
+			MaterialAlertDialogBuilder(context)
+				.setTitle(R.string.save_manga)
+				.setMessage(R.string.batch_manga_save_confirm)
+				.setNegativeButton(android.R.string.cancel, null)
+				.setPositiveButton(R.string.save) { _, _ ->
+					start(context, items)
+				}.show()
+		}
+
 		fun getCancelIntent(startId: Int) = Intent(ACTION_DOWNLOAD_CANCEL)
 			.putExtra(EXTRA_CANCEL_ID, startId)
 

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

@@ -24,9 +24,10 @@ class ForegroundNotificationSwitcher(
 	@Synchronized
 	fun notify(startId: Int, notification: Notification) {
 		if (notifications.isEmpty()) {
-			handler.postDelayed(StartForegroundRunnable(startId, notification), DEFAULT_DELAY)
+			service.startForeground(startId, notification)
+		} else {
+			notificationManager.notify(startId, notification)
 		}
-		notificationManager.notify(startId, notification)
 		notifications[startId] = notification
 	}
 
@@ -45,16 +46,6 @@ class ForegroundNotificationSwitcher(
 		handler.postDelayed(NotifyRunnable(startId, notification), DEFAULT_DELAY)
 	}
 
-	private inner class StartForegroundRunnable(
-		private val startId: Int,
-		private val notification: Notification,
-	) : Runnable {
-
-		override fun run() {
-			service.startForeground(startId, notification)
-		}
-	}
-
 	private inner class NotifyRunnable(
 		private val startId: Int,
 		private val notification: Notification?,

app/src/main/java/org/koitharu/kotatsu/favourites/data/EntityMapping.kt

@@ -0,0 +1,14 @@
+package org.koitharu.kotatsu.favourites.data
+
+import java.util.*
+import org.koitharu.kotatsu.core.db.entity.SortOrder
+import org.koitharu.kotatsu.core.model.FavouriteCategory
+import org.koitharu.kotatsu.parsers.model.SortOrder
+
+fun FavouriteCategoryEntity.toFavouriteCategory(id: Long = categoryId.toLong()) = FavouriteCategory(
+	id = id,
+	title = title,
+	sortKey = sortKey,
+	order = SortOrder(order, SortOrder.NEWEST),
+	createdAt = Date(createdAt),
+)

app/src/main/java/org/koitharu/kotatsu/favourites/data/FavouriteCategoryEntity.kt

@@ -3,9 +3,6 @@ package org.koitharu.kotatsu.favourites.data
 import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.PrimaryKey
-import org.koitharu.kotatsu.core.model.FavouriteCategory
-import org.koitharu.kotatsu.parsers.model.SortOrder
-import java.util.*
 
 @Entity(tableName = "favourite_categories")
 class FavouriteCategoryEntity(
@@ -15,13 +12,4 @@ class FavouriteCategoryEntity(
 	@ColumnInfo(name = "sort_key") val sortKey: Int,
 	@ColumnInfo(name = "title") val title: String,
 	@ColumnInfo(name = "order") val order: String,
-) {
-
-	fun toFavouriteCategory(id: Long? = null) = FavouriteCategory(
-		id = id ?: categoryId.toLong(),
-		title = title,
-		sortKey = sortKey,
-		order = SortOrder.values().find { x -> x.name == order } ?: SortOrder.NEWEST,
-		createdAt = Date(createdAt),
-	)
-}
+)

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

@@ -6,36 +6,35 @@ import kotlinx.coroutines.flow.distinctUntilChanged
 import kotlinx.coroutines.flow.flatMapLatest
 import kotlinx.coroutines.flow.map
 import org.koitharu.kotatsu.core.db.MangaDatabase
-import org.koitharu.kotatsu.core.db.entity.MangaEntity
-import org.koitharu.kotatsu.core.db.entity.TagEntity
+import org.koitharu.kotatsu.core.db.entity.*
 import org.koitharu.kotatsu.core.model.FavouriteCategory
 import org.koitharu.kotatsu.favourites.data.FavouriteCategoryEntity
 import org.koitharu.kotatsu.favourites.data.FavouriteEntity
+import org.koitharu.kotatsu.favourites.data.toFavouriteCategory
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.SortOrder
 import org.koitharu.kotatsu.utils.ext.mapItems
-import org.koitharu.kotatsu.utils.ext.mapToSet
 
 class FavouritesRepository(private val db: MangaDatabase) {
 
 	suspend fun getAllManga(): List<Manga> {
 		val entities = db.favouritesDao.findAll()
-		return entities.map { it.manga.toManga(it.tags.mapToSet(TagEntity::toMangaTag)) }
+		return entities.map { it.manga.toManga(it.tags.toMangaTags()) }
 	}
 
 	fun observeAll(order: SortOrder): Flow<List<Manga>> {
 		return db.favouritesDao.observeAll(order)
-			.mapItems { it.manga.toManga(it.tags.mapToSet(TagEntity::toMangaTag)) }
+			.mapItems { it.manga.toManga(it.tags.toMangaTags()) }
 	}
 
 	suspend fun getManga(categoryId: Long): List<Manga> {
 		val entities = db.favouritesDao.findAll(categoryId)
-		return entities.map { it.manga.toManga(it.tags.mapToSet(TagEntity::toMangaTag)) }
+		return entities.map { it.manga.toManga(it.tags.toMangaTags()) }
 	}
 
 	fun observeAll(categoryId: Long, order: SortOrder): Flow<List<Manga>> {
 		return db.favouritesDao.observeAll(categoryId, order)
-			.mapItems { it.manga.toManga(it.tags.mapToSet(TagEntity::toMangaTag)) }
+			.mapItems { it.manga.toManga(it.tags.toMangaTags()) }
 	}
 
 	fun observeAll(categoryId: Long): Flow<List<Manga>> {
@@ -43,21 +42,6 @@ class FavouritesRepository(private val db: MangaDatabase) {
 			.flatMapLatest { order -> observeAll(categoryId, order) }
 	}
 
-	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.mapToSet(TagEntity::toMangaTag)) }
-	}
-
-	suspend fun getAllCategories(): List<FavouriteCategory> {
-		val entities = db.favouriteCategoriesDao.findAll()
-		return entities.map { it.toFavouriteCategory() }
-	}
-
-	suspend fun getCategories(mangaId: Long): List<FavouriteCategory> {
-		val entities = db.favouritesDao.find(mangaId)?.categories
-		return entities?.map { it.toFavouriteCategory() }.orEmpty()
-	}
-
 	fun observeCategories(): Flow<List<FavouriteCategory>> {
 		return db.favouriteCategoriesDao.observeAll().mapItems {
 			it.toFavouriteCategory()
@@ -70,8 +54,8 @@ class FavouritesRepository(private val db: MangaDatabase) {
 		}.distinctUntilChanged()
 	}
 
-	fun observeCategoriesIds(mangaId: Long): Flow<List<Long>> {
-		return db.favouritesDao.observeIds(mangaId)
+	fun observeCategoriesIds(mangaId: Long): Flow<Set<Long>> {
+		return db.favouritesDao.observeIds(mangaId).map { it.toSet() }
 	}
 
 	suspend fun addCategory(title: String): FavouriteCategory {
@@ -107,27 +91,37 @@ class FavouritesRepository(private val db: MangaDatabase) {
 		}
 	}
 
-	suspend fun addToCategory(manga: Manga, categoryId: Long) {
-		val tags = manga.tags.map(TagEntity.Companion::fromMangaTag)
+	suspend fun addToCategory(categoryId: Long, mangas: Collection<Manga>) {
 		db.withTransaction {
-			db.tagsDao.upsert(tags)
-			db.mangaDao.upsert(MangaEntity.from(manga), tags)
-			val entity = FavouriteEntity(manga.id, categoryId, System.currentTimeMillis())
-			db.favouritesDao.insert(entity)
+			for (manga in mangas) {
+				val tags = manga.tags.toEntities()
+				db.tagsDao.upsert(tags)
+				db.mangaDao.upsert(manga.toEntity(), tags)
+				val entity = FavouriteEntity(manga.id, categoryId, System.currentTimeMillis())
+				db.favouritesDao.insert(entity)
+			}
 		}
 	}
 
-	suspend fun removeFromCategory(manga: Manga, categoryId: Long) {
-		db.favouritesDao.delete(categoryId, manga.id)
+	suspend fun removeFromFavourites(ids: Collection<Long>) {
+		db.withTransaction {
+			for (id in ids) {
+				db.favouritesDao.delete(id)
+			}
+		}
 	}
 
-	suspend fun removeFromFavourites(manga: Manga) {
-		db.favouritesDao.delete(manga.id)
+	suspend fun removeFromCategory(categoryId: Long, ids: Collection<Long>) {
+		db.withTransaction {
+			for (id in ids) {
+				db.favouritesDao.delete(categoryId, id)
+			}
+		}
 	}
 
 	private fun observeOrder(categoryId: Long): Flow<SortOrder> {
 		return db.favouriteCategoriesDao.observe(categoryId)
-			.map { x -> SortOrder.values().find { it.name == x.order } ?: SortOrder.NEWEST }
+			.map { x -> SortOrder(x.order, SortOrder.NEWEST) }
 			.distinctUntilChanged()
 	}
 }

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

@@ -2,14 +2,19 @@ package org.koitharu.kotatsu.favourites.ui
 
 import android.os.Bundle
 import android.view.*
+import androidx.appcompat.view.ActionMode
+import androidx.appcompat.widget.PopupMenu
 import androidx.core.graphics.Insets
+import androidx.core.view.children
 import androidx.core.view.updateLayoutParams
 import androidx.core.view.updatePadding
 import com.google.android.material.snackbar.Snackbar
+import com.google.android.material.tabs.TabLayout
 import com.google.android.material.tabs.TabLayoutMediator
 import org.koin.androidx.viewmodel.ext.android.viewModel
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.base.ui.BaseFragment
+import org.koitharu.kotatsu.base.ui.util.ActionModeListener
 import org.koitharu.kotatsu.core.model.FavouriteCategory
 import org.koitharu.kotatsu.core.ui.titleRes
 import org.koitharu.kotatsu.databinding.FragmentFavouritesBinding
@@ -20,11 +25,13 @@ import org.koitharu.kotatsu.main.ui.AppBarOwner
 import org.koitharu.kotatsu.parsers.model.SortOrder
 import org.koitharu.kotatsu.utils.ext.getDisplayMessage
 import org.koitharu.kotatsu.utils.ext.measureHeight
-import org.koitharu.kotatsu.utils.ext.showPopupMenu
 import java.util.*
 
-class FavouritesContainerFragment : BaseFragment<FragmentFavouritesBinding>(),
-	FavouritesTabLongClickListener, CategoriesEditDelegate.CategoriesEditCallback {
+class FavouritesContainerFragment :
+	BaseFragment<FragmentFavouritesBinding>(),
+	FavouritesTabLongClickListener,
+	CategoriesEditDelegate.CategoriesEditCallback,
+	ActionModeListener {
 
 	private val viewModel by viewModel<FavouritesCategoriesViewModel>()
 	private val editDelegate by lazy(LazyThreadSafetyMode.NONE) {
@@ -51,6 +58,7 @@ class FavouritesContainerFragment : BaseFragment<FragmentFavouritesBinding>(),
 		binding.pager.adapter = adapter
 		pagerAdapter = adapter
 		TabLayoutMediator(binding.tabs, binding.pager, adapter).attach()
+		actionModeDelegate.addListener(this, viewLifecycleOwner)
 
 		viewModel.categories.observe(viewLifecycleOwner, ::onCategoriesChanged)
 		viewModel.onError.observe(viewLifecycleOwner, ::onError)
@@ -61,6 +69,16 @@ class FavouritesContainerFragment : BaseFragment<FragmentFavouritesBinding>(),
 		super.onDestroyView()
 	}
 
+	override fun onActionModeStarted(mode: ActionMode) {
+		binding.pager.isUserInputEnabled = false
+		binding.tabs.setTabsEnabled(false)
+	}
+
+	override fun onActionModeFinished(mode: ActionMode) {
+		binding.pager.isUserInputEnabled = true
+		binding.tabs.setTabsEnabled(true)
+	}
+
 	override fun onWindowInsetsChanged(insets: Insets) {
 		val headerHeight = (activity as? AppBarOwner)?.appBar?.measureHeight() ?: insets.top
 		binding.root.updatePadding(
@@ -105,22 +123,24 @@ class FavouritesContainerFragment : BaseFragment<FragmentFavouritesBinding>(),
 
 	override fun onTabLongClick(tabView: View, category: FavouriteCategory): Boolean {
 		val menuRes = if (category.id == 0L) R.menu.popup_category_empty else R.menu.popup_category
-		tabView.showPopupMenu(menuRes, { menu ->
-			createOrderSubmenu(menu, category)
-		}) {
+		val menu = PopupMenu(tabView.context, tabView)
+		menu.inflate(menuRes)
+		createOrderSubmenu(menu.menu, category)
+		menu.setOnMenuItemClickListener {
 			when (it.itemId) {
 				R.id.action_remove -> editDelegate.deleteCategory(category)
 				R.id.action_rename -> editDelegate.renameCategory(category)
 				R.id.action_create -> editDelegate.createCategory()
-				R.id.action_order -> return@showPopupMenu false
+				R.id.action_order -> return@setOnMenuItemClickListener false
 				else -> {
 					val order = CategoriesActivity.SORT_ORDERS.getOrNull(it.order)
-						?: return@showPopupMenu false
+						?: return@setOnMenuItemClickListener false
 					viewModel.setCategoryOrder(category.id, order)
 				}
 			}
 			true
 		}
+		menu.show()
 		return true
 	}
 
@@ -146,18 +166,20 @@ class FavouritesContainerFragment : BaseFragment<FragmentFavouritesBinding>(),
 	private fun createOrderSubmenu(menu: Menu, category: FavouriteCategory) {
 		val submenu = menu.findItem(R.id.action_order)?.subMenu ?: return
 		for ((i, item) in CategoriesActivity.SORT_ORDERS.withIndex()) {
-			val menuItem = submenu.add(
-				R.id.group_order,
-				Menu.NONE,
-				i,
-				item.titleRes
-			)
+			val menuItem = submenu.add(R.id.group_order, Menu.NONE, i, item.titleRes)
 			menuItem.isCheckable = true
 			menuItem.isChecked = item == category.order
 		}
 		submenu.setGroupCheckable(R.id.group_order, true, true)
 	}
 
+	private fun TabLayout.setTabsEnabled(enabled: Boolean) {
+		val tabStrip = getChildAt(0) as? ViewGroup ?: return
+		for (tab in tabStrip.children) {
+			tab.isEnabled = enabled
+		}
+	}
+
 	companion object {
 
 		fun newInstance() = FavouritesContainerFragment()

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

@@ -6,6 +6,7 @@ import android.os.Bundle
 import android.view.Menu
 import android.view.View
 import android.view.ViewGroup
+import androidx.appcompat.widget.PopupMenu
 import androidx.core.graphics.Insets
 import androidx.core.view.isVisible
 import androidx.core.view.updateLayoutParams
@@ -23,11 +24,12 @@ import org.koitharu.kotatsu.databinding.ActivityCategoriesBinding
 import org.koitharu.kotatsu.parsers.model.SortOrder
 import org.koitharu.kotatsu.utils.ext.getDisplayMessage
 import org.koitharu.kotatsu.utils.ext.measureHeight
-import org.koitharu.kotatsu.utils.ext.showPopupMenu
 
-class CategoriesActivity : BaseActivity<ActivityCategoriesBinding>(),
+class CategoriesActivity :
+	BaseActivity<ActivityCategoriesBinding>(),
 	OnListItemClickListener<FavouriteCategory>,
-	View.OnClickListener, CategoriesEditDelegate.CategoriesEditCallback {
+	View.OnClickListener,
+	CategoriesEditDelegate.CategoriesEditCallback {
 
 	private val viewModel by viewModel<FavouritesCategoriesViewModel>()
 
@@ -58,26 +60,27 @@ class CategoriesActivity : BaseActivity<ActivityCategoriesBinding>(),
 	}
 
 	override fun onItemClick(item: FavouriteCategory, view: View) {
-		view.showPopupMenu(R.menu.popup_category, { menu ->
-			createOrderSubmenu(menu, item)
-		}) {
-			when (it.itemId) {
+		val menu = PopupMenu(view.context, view)
+		menu.inflate(R.menu.popup_category)
+		createOrderSubmenu(menu.menu, item)
+		menu.setOnMenuItemClickListener { menuItem ->
+			when (menuItem.itemId) {
 				R.id.action_remove -> editDelegate.deleteCategory(item)
 				R.id.action_rename -> editDelegate.renameCategory(item)
-				R.id.action_order -> return@showPopupMenu false
+				R.id.action_order -> return@setOnMenuItemClickListener false
 				else -> {
-					val order = SORT_ORDERS.getOrNull(it.order) ?: return@showPopupMenu false
+					val order = SORT_ORDERS.getOrNull(menuItem.order) ?: return@setOnMenuItemClickListener false
 					viewModel.setCategoryOrder(item.id, order)
 				}
 			}
 			true
 		}
+		menu.show()
 	}
 
 	override fun onItemLongClick(item: FavouriteCategory, view: View): Boolean {
-		reorderHelper.startDrag(
-			binding.recyclerView.findContainingViewHolder(view) ?: return false
-		)
+		val viewHolder = binding.recyclerView.findContainingViewHolder(view) ?: return false
+		reorderHelper.startDrag(viewHolder)
 		return true
 	}
 
@@ -90,7 +93,7 @@ class CategoriesActivity : BaseActivity<ActivityCategoriesBinding>(),
 		binding.recyclerView.updatePadding(
 			left = insets.left,
 			right = insets.right,
-			bottom = 2 * insets.bottom + binding.fabAdd.measureHeight()
+			bottom = 2 * insets.bottom + binding.fabAdd.measureHeight(),
 		)
 	}
 

app/src/main/java/org/koitharu/kotatsu/favourites/ui/categories/select/FavouriteCategoriesDialog.kt

@@ -2,14 +2,15 @@ package org.koitharu.kotatsu.favourites.ui.categories.select
 
 import android.os.Bundle
 import android.view.LayoutInflater
+import android.view.MenuItem
 import android.view.View
 import android.view.ViewGroup
 import android.widget.Toast
+import androidx.appcompat.widget.Toolbar
 import androidx.fragment.app.FragmentManager
 import org.koin.androidx.viewmodel.ext.android.viewModel
 import org.koin.core.parameter.parametersOf
 import org.koitharu.kotatsu.R
-import org.koitharu.kotatsu.base.domain.MangaIntent
 import org.koitharu.kotatsu.base.ui.BaseBottomSheet
 import org.koitharu.kotatsu.base.ui.list.OnListItemClickListener
 import org.koitharu.kotatsu.core.model.FavouriteCategory
@@ -26,10 +27,10 @@ class FavouriteCategoriesDialog :
 	BaseBottomSheet<DialogFavoriteCategoriesBinding>(),
 	OnListItemClickListener<MangaCategoryItem>,
 	CategoriesEditDelegate.CategoriesEditCallback,
-	View.OnClickListener {
+	Toolbar.OnMenuItemClickListener {
 
 	private val viewModel by viewModel<MangaCategoriesViewModel> {
-		parametersOf(requireNotNull(arguments?.getParcelable<ParcelableManga>(MangaIntent.KEY_MANGA)).manga)
+		parametersOf(requireNotNull(arguments?.getParcelableArrayList<ParcelableManga>(KEY_MANGA_LIST)).map { it.manga })
 	}
 
 	private var adapter: MangaCategoriesAdapter? = null
@@ -46,7 +47,7 @@ class FavouriteCategoriesDialog :
 		super.onViewCreated(view, savedInstanceState)
 		adapter = MangaCategoriesAdapter(this)
 		binding.recyclerViewCategories.adapter = adapter
-		binding.textViewAdd.setOnClickListener(this)
+		binding.toolbar.setOnMenuItemClickListener(this)
 
 		viewModel.content.observe(viewLifecycleOwner, this::onContentChanged)
 		viewModel.onError.observe(viewLifecycleOwner, ::onError)
@@ -57,9 +58,13 @@ class FavouriteCategoriesDialog :
 		super.onDestroyView()
 	}
 
-	override fun onClick(v: View) {
-		when (v.id) {
-			R.id.textView_add -> editDelegate.createCategory()
+	override fun onMenuItemClick(item: MenuItem): Boolean {
+		return when (item.itemId) {
+			R.id.action_create -> {
+				editDelegate.createCategory()
+				true
+			}
+			else -> false
 		}
 	}
 
@@ -86,10 +91,15 @@ class FavouriteCategoriesDialog :
 	companion object {
 
 		private const val TAG = "FavouriteCategoriesDialog"
+		private const val KEY_MANGA_LIST = "manga_list"
 
-		fun show(fm: FragmentManager, manga: Manga) = FavouriteCategoriesDialog()
-			.withArgs(1) {
-				putParcelable(MangaIntent.KEY_MANGA, ParcelableManga(manga))
-			}.show(fm, TAG)
+		fun show(fm: FragmentManager, manga: Manga) = Companion.show(fm, listOf(manga))
+
+		fun show(fm: FragmentManager, manga: Collection<Manga>) = FavouriteCategoriesDialog().withArgs(1) {
+			putParcelableArrayList(
+				KEY_MANGA_LIST,
+				manga.mapTo(ArrayList(manga.size)) { ParcelableManga(it, withChapters = false) }
+			)
+		}.show(fm, TAG)
 	}
 }

app/src/main/java/org/koitharu/kotatsu/favourites/ui/categories/select/MangaCategoriesViewModel.kt

@@ -4,19 +4,20 @@ import androidx.lifecycle.viewModelScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.combine
 import org.koitharu.kotatsu.base.ui.BaseViewModel
+import org.koitharu.kotatsu.core.model.ids
 import org.koitharu.kotatsu.favourites.domain.FavouritesRepository
 import org.koitharu.kotatsu.favourites.ui.categories.select.model.MangaCategoryItem
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.utils.ext.asLiveDataDistinct
 
 class MangaCategoriesViewModel(
-	private val manga: Manga,
+	private val manga: List<Manga>,
 	private val favouritesRepository: FavouritesRepository
 ) : BaseViewModel() {
 
 	val content = combine(
 		favouritesRepository.observeCategories(),
-		favouritesRepository.observeCategoriesIds(manga.id)
+		observeCategoriesIds(),
 	) { all, checked ->
 		all.map {
 			MangaCategoryItem(
@@ -30,9 +31,9 @@ class MangaCategoriesViewModel(
 	fun setChecked(categoryId: Long, isChecked: Boolean) {
 		launchJob(Dispatchers.Default) {
 			if (isChecked) {
-				favouritesRepository.addToCategory(manga, categoryId)
+				favouritesRepository.addToCategory(categoryId, manga)
 			} else {
-				favouritesRepository.removeFromCategory(manga, categoryId)
+				favouritesRepository.removeFromCategory(categoryId, manga.ids())
 			}
 		}
 	}
@@ -42,4 +43,25 @@ class MangaCategoriesViewModel(
 			favouritesRepository.addCategory(name)
 		}
 	}
+
+	private fun observeCategoriesIds() = if (manga.size == 1) {
+		// Fast path
+		favouritesRepository.observeCategoriesIds(manga[0].id)
+	} else {
+		combine(
+			manga.map { favouritesRepository.observeCategoriesIds(it.id) }
+		) { array ->
+			val result = HashSet<Long>()
+			var isFirst = true
+			for (ids in array) {
+				if (isFirst) {
+					result.addAll(ids)
+					isFirst = false
+				} else {
+					result.retainAll(ids.toSet())
+				}
+			}
+			result
+		}
+	}
 }

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

@@ -1,13 +1,13 @@
 package org.koitharu.kotatsu.favourites.ui.list
 
 import android.view.Menu
-import android.view.MenuInflater
 import android.view.MenuItem
+import androidx.appcompat.view.ActionMode
 import org.koin.androidx.viewmodel.ext.android.viewModel
 import org.koin.core.parameter.parametersOf
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.list.ui.MangaListFragment
-import org.koitharu.kotatsu.parsers.model.Manga
+import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.utils.ext.withArgs
 
 class FavouritesListFragment : MangaListFragment() {
@@ -23,17 +23,27 @@ class FavouritesListFragment : MangaListFragment() {
 
 	override fun onScrolledToEnd() = Unit
 
-	override fun onCreatePopupMenu(inflater: MenuInflater, menu: Menu, data: Manga) {
-		super.onCreatePopupMenu(inflater, menu, data)
-		inflater.inflate(R.menu.popup_favourites, menu)
+	override fun onCreateActionMode(mode: ActionMode, menu: Menu): Boolean {
+		mode.menuInflater.inflate(R.menu.mode_favourites, menu)
+		return super.onCreateActionMode(mode, menu)
 	}
 
-	override fun onPopupMenuItemSelected(item: MenuItem, data: Manga) = when (item.itemId) {
-		R.id.action_remove -> {
-			viewModel.removeFromFavourites(data)
-			true
+	override fun onPrepareActionMode(mode: ActionMode, menu: Menu): Boolean {
+		menu.findItem(R.id.action_save)?.isVisible = selectedItems.none {
+			it.source == MangaSource.LOCAL
+		}
+		return super.onPrepareActionMode(mode, menu)
+	}
+
+	override fun onActionItemClicked(mode: ActionMode, item: MenuItem): Boolean {
+		return when (item.itemId) {
+			R.id.action_remove -> {
+				viewModel.removeFromFavourites(selectedItemsIds)
+				mode.finish()
+				true
+			}
+			else -> super.onActionItemClicked(mode, item)
 		}
-		else -> super.onPopupMenuItemSelected(item, data)
 	}
 
 	companion object {

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

@@ -13,7 +13,6 @@ import org.koitharu.kotatsu.list.ui.model.EmptyState
 import org.koitharu.kotatsu.list.ui.model.LoadingState
 import org.koitharu.kotatsu.list.ui.model.toErrorState
 import org.koitharu.kotatsu.list.ui.model.toUi
-import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.SortOrder
 import org.koitharu.kotatsu.tracker.domain.TrackingRepository
 import org.koitharu.kotatsu.utils.ext.asLiveDataDistinct
@@ -56,12 +55,15 @@ class FavouritesListViewModel(
 
 	override fun onRetry() = Unit
 
-	fun removeFromFavourites(manga: Manga) {
+	fun removeFromFavourites(ids: Set<Long>) {
+		if (ids.isEmpty()) {
+			return
+		}
 		launchJob {
 			if (categoryId == 0L) {
-				repository.removeFromFavourites(manga)
+				repository.removeFromFavourites(ids)
 			} else {
-				repository.removeFromCategory(manga, categoryId)
+				repository.removeFromCategory(categoryId, ids)
 			}
 		}
 	}

app/src/main/java/org/koitharu/kotatsu/history/data/EntityMapping.kt

@@ -0,0 +1,12 @@
+package org.koitharu.kotatsu.history.data
+
+import java.util.*
+import org.koitharu.kotatsu.core.model.MangaHistory
+
+fun HistoryEntity.toMangaHistory() = MangaHistory(
+	createdAt = Date(createdAt),
+	updatedAt = Date(updatedAt),
+	chapterId = chapterId,
+	page = page,
+	scroll = scroll.toInt()
+)

app/src/main/java/org/koitharu/kotatsu/history/data/HistoryDao.kt

@@ -5,7 +5,6 @@ import kotlinx.coroutines.flow.Flow
 import org.koitharu.kotatsu.core.db.entity.MangaEntity
 import org.koitharu.kotatsu.core.db.entity.TagEntity
 
-
 @Dao
 abstract class HistoryDao {
 
@@ -23,8 +22,15 @@ abstract class HistoryDao {
 	@Query("SELECT * FROM manga WHERE manga_id IN (SELECT manga_id FROM history)")
 	abstract suspend fun findAllManga(): List<MangaEntity>
 
-	@Query("SELECT * FROM tags WHERE tag_id IN (SELECT tag_id FROM manga_tags WHERE manga_id IN (SELECT manga_id FROM history))")
-	abstract suspend fun findAllTags(): List<TagEntity>
+	@Query(
+		"""SELECT tags.* FROM tags
+		LEFT JOIN manga_tags ON tags.tag_id = manga_tags.tag_id
+		INNER JOIN history ON history.manga_id = manga_tags.manga_id
+		GROUP BY manga_tags.tag_id 
+		ORDER BY COUNT(manga_tags.manga_id) DESC 
+		LIMIT :limit"""
+	)
+	abstract suspend fun findPopularTags(limit: Int): List<TagEntity>
 
 	@Query("SELECT * FROM history WHERE manga_id = :id")
 	abstract suspend fun find(id: Long): HistoryEntity?
@@ -32,6 +38,9 @@ abstract class HistoryDao {
 	@Query("SELECT * FROM history WHERE manga_id = :id")
 	abstract fun observe(id: Long): Flow<HistoryEntity?>
 
+	@Query("SELECT COUNT(*) FROM history")
+	abstract fun observeCount(): Flow<Int>
+
 	@Query("DELETE FROM history")
 	abstract suspend fun clear()
 
@@ -60,5 +69,4 @@ abstract class HistoryDao {
 			true
 		} else false
 	}
-
 }

app/src/main/java/org/koitharu/kotatsu/history/data/HistoryEntity.kt

@@ -5,11 +5,10 @@ import androidx.room.Entity
 import androidx.room.ForeignKey
 import androidx.room.PrimaryKey
 import org.koitharu.kotatsu.core.db.entity.MangaEntity
-import org.koitharu.kotatsu.core.model.MangaHistory
-import java.util.*
 
 @Entity(
-	tableName = "history", foreignKeys = [
+	tableName = "history",
+	foreignKeys = [
 		ForeignKey(
 			entity = MangaEntity::class,
 			parentColumns = ["manga_id"],
@@ -26,13 +25,4 @@ class HistoryEntity(
 	@ColumnInfo(name = "chapter_id") val chapterId: Long,
 	@ColumnInfo(name = "page") val page: Int,
 	@ColumnInfo(name = "scroll") val scroll: Float,
-) {
-
-	fun toMangaHistory() = MangaHistory(
-		createdAt = Date(createdAt),
-		updatedAt = Date(updatedAt),
-		chapterId = chapterId,
-		page = page,
-		scroll = scroll.toInt()
-	)
-}
+)

app/src/main/java/org/koitharu/kotatsu/history/data/HistoryWithManga.kt

@@ -19,5 +19,5 @@ class HistoryWithManga(
 		entityColumn = "tag_id",
 		associateBy = Junction(MangaTagsEntity::class)
 	)
-	val tags: List<TagEntity>
+	val tags: List<TagEntity>,
 )

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

@@ -2,18 +2,18 @@ package org.koitharu.kotatsu.history.domain
 
 import androidx.room.withTransaction
 import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.distinctUntilChanged
 import kotlinx.coroutines.flow.map
 import org.koitharu.kotatsu.core.db.MangaDatabase
-import org.koitharu.kotatsu.core.db.entity.MangaEntity
-import org.koitharu.kotatsu.core.db.entity.TagEntity
+import org.koitharu.kotatsu.core.db.entity.*
 import org.koitharu.kotatsu.core.model.MangaHistory
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.history.data.HistoryEntity
+import org.koitharu.kotatsu.history.data.toMangaHistory
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaTag
 import org.koitharu.kotatsu.tracker.domain.TrackingRepository
 import org.koitharu.kotatsu.utils.ext.mapItems
-import org.koitharu.kotatsu.utils.ext.mapToSet
 
 class HistoryRepository(
 	private val db: MangaDatabase,
@@ -23,20 +23,25 @@ class HistoryRepository(
 
 	suspend fun getList(offset: Int, limit: Int = 20): List<Manga> {
 		val entities = db.historyDao.findAll(offset, limit)
-		return entities.map { it.manga.toManga(it.tags.mapToSet(TagEntity::toMangaTag)) }
+		return entities.map { it.manga.toManga(it.tags.toMangaTags()) }
+	}
+
+	suspend fun getLastOrNull(): Manga? {
+		val entity = db.historyDao.findAll(0, 1).firstOrNull() ?: return null
+		return entity.manga.toManga(entity.tags.toMangaTags())
 	}
 
 	fun observeAll(): Flow<List<Manga>> {
 		return db.historyDao.observeAll().mapItems {
-			it.manga.toManga(it.tags.mapToSet(TagEntity::toMangaTag))
+			it.manga.toManga(it.tags.toMangaTags())
 		}
 	}
 
 	fun observeAllWithHistory(): Flow<List<MangaWithHistory>> {
 		return db.historyDao.observeAll().mapItems {
 			MangaWithHistory(
-				it.manga.toManga(it.tags.mapToSet(TagEntity::toMangaTag)),
-				it.history.toMangaHistory()
+				it.manga.toManga(it.tags.toMangaTags()),
+				it.history.toMangaHistory(),
 			)
 		}
 	}
@@ -47,14 +52,20 @@ class HistoryRepository(
 		}
 	}
 
+	fun observeHasItems(): Flow<Boolean> {
+		return db.historyDao.observeCount()
+			.map { it > 0 }
+			.distinctUntilChanged()
+	}
+
 	suspend fun addOrUpdate(manga: Manga, chapterId: Long, page: Int, scroll: Int) {
 		if (manga.isNsfw && settings.isHistoryExcludeNsfw) {
 			return
 		}
-		val tags = manga.tags.map(TagEntity.Companion::fromMangaTag)
+		val tags = manga.tags.toEntities()
 		db.withTransaction {
 			db.tagsDao.upsert(tags)
-			db.mangaDao.upsert(MangaEntity.from(manga), tags)
+			db.mangaDao.upsert(manga.toEntity(), tags)
 			db.historyDao.upsert(
 				HistoryEntity(
 					mangaId = manga.id,
@@ -62,7 +73,7 @@ class HistoryRepository(
 					updatedAt = System.currentTimeMillis(),
 					chapterId = chapterId,
 					page = page,
-					scroll = scroll.toFloat() // we migrate to int, but decide to not update database
+					scroll = scroll.toFloat(), // we migrate to int, but decide to not update database
 				)
 			)
 			trackingRepository.upsert(manga)
@@ -81,17 +92,25 @@ class HistoryRepository(
 		db.historyDao.delete(manga.id)
 	}
 
+	suspend fun delete(ids: Collection<Long>) {
+		db.withTransaction {
+			for (id in ids) {
+				db.historyDao.delete(id)
+			}
+		}
+	}
+
 	/**
 	 * Try to replace one manga with another one
 	 * Useful for replacing saved manga on deleting it with remove source
 	 */
 	suspend fun deleteOrSwap(manga: Manga, alternative: Manga?) {
-		if (alternative == null || db.mangaDao.update(MangaEntity.from(alternative)) <= 0) {
+		if (alternative == null || db.mangaDao.update(alternative.toEntity()) <= 0) {
 			db.historyDao.delete(manga.id)
 		}
 	}
 
-	suspend fun getAllTags(): Set<MangaTag> {
-		return db.historyDao.findAllTags().mapToSet { x -> x.toMangaTag() }
+	suspend fun getPopularTags(limit: Int): List<MangaTag> {
+		return db.historyDao.findPopularTags(limit).map { x -> x.toMangaTag() }
 	}
 }

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

@@ -5,13 +5,12 @@ import android.view.Menu
 import android.view.MenuInflater
 import android.view.MenuItem
 import android.view.View
+import androidx.appcompat.view.ActionMode
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
-import com.google.android.material.snackbar.Snackbar
 import org.koin.androidx.viewmodel.ext.android.viewModel
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.list.ui.MangaListFragment
-import org.koitharu.kotatsu.parsers.model.Manga
-import org.koitharu.kotatsu.parsers.util.ellipsize
+import org.koitharu.kotatsu.parsers.model.MangaSource
 
 class HistoryListFragment : MangaListFragment() {
 
@@ -20,7 +19,6 @@ class HistoryListFragment : MangaListFragment() {
 
 	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
 		super.onViewCreated(view, savedInstanceState)
-		viewModel.onItemRemoved.observe(viewLifecycleOwner, ::onItemRemoved)
 		viewModel.isGroupingEnabled.observe(viewLifecycleOwner) {
 			activity?.invalidateOptionsMenu()
 		}
@@ -59,30 +57,29 @@ class HistoryListFragment : MangaListFragment() {
 		}
 	}
 
-	override fun onCreatePopupMenu(inflater: MenuInflater, menu: Menu, data: Manga) {
-		super.onCreatePopupMenu(inflater, menu, data)
-		inflater.inflate(R.menu.popup_history, menu)
+	override fun onCreateActionMode(mode: ActionMode, menu: Menu): Boolean {
+		mode.menuInflater.inflate(R.menu.mode_history, menu)
+		return super.onCreateActionMode(mode, menu)
 	}
 
-	override fun onPopupMenuItemSelected(item: MenuItem, data: Manga): Boolean {
+	override fun onPrepareActionMode(mode: ActionMode, menu: Menu): Boolean {
+		menu.findItem(R.id.action_save)?.isVisible = selectedItems.none {
+			it.source == MangaSource.LOCAL
+		}
+		return super.onPrepareActionMode(mode, menu)
+	}
+
+	override fun onActionItemClicked(mode: ActionMode, item: MenuItem): Boolean {
 		return when (item.itemId) {
 			R.id.action_remove -> {
-				viewModel.removeFromHistory(data)
+				viewModel.removeFromHistory(selectedItemsIds)
+				mode.finish()
 				true
 			}
-			else -> super.onPopupMenuItemSelected(item, data)
+			else -> super.onActionItemClicked(mode, item)
 		}
 	}
 
-	private fun onItemRemoved(item: Manga) {
-		Snackbar.make(
-			binding.recyclerView, getString(
-				R.string._s_removed_from_history,
-				item.title.ellipsize(16)
-			), Snackbar.LENGTH_SHORT
-		).show()
-	}
-
 	companion object {
 
 		fun newInstance() = HistoryListFragment()

app/src/main/java/org/koitharu/kotatsu/history/ui/HistoryListViewModel.kt

@@ -2,6 +2,8 @@ package org.koitharu.kotatsu.history.ui
 
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.viewModelScope
+import java.util.*
+import java.util.concurrent.TimeUnit
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.*
 import org.koitharu.kotatsu.R
@@ -13,14 +15,10 @@ import org.koitharu.kotatsu.history.domain.HistoryRepository
 import org.koitharu.kotatsu.history.domain.MangaWithHistory
 import org.koitharu.kotatsu.list.ui.MangaListViewModel
 import org.koitharu.kotatsu.list.ui.model.*
-import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.tracker.domain.TrackingRepository
-import org.koitharu.kotatsu.utils.SingleLiveEvent
 import org.koitharu.kotatsu.utils.ext.asLiveDataDistinct
 import org.koitharu.kotatsu.utils.ext.daysDiff
 import org.koitharu.kotatsu.utils.ext.onFirst
-import java.util.*
-import java.util.concurrent.TimeUnit
 
 class HistoryListViewModel(
 	private val repository: HistoryRepository,
@@ -29,7 +27,6 @@ class HistoryListViewModel(
 	private val trackingRepository: TrackingRepository,
 ) : MangaListViewModel(settings) {
 
-	val onItemRemoved = SingleLiveEvent<Manga>()
 	val isGroupingEnabled = MutableLiveData<Boolean>()
 
 	private val historyGrouping = settings.observe()
@@ -72,10 +69,12 @@ class HistoryListViewModel(
 		}
 	}
 
-	fun removeFromHistory(manga: Manga) {
+	fun removeFromHistory(ids: Set<Long>) {
+		if (ids.isEmpty()) {
+			return
+		}
 		launchJob {
-			repository.delete(manga)
-			onItemRemoved.call(manga)
+			repository.delete(ids)
 			shortcutsRepository.updateShortcuts()
 		}
 	}

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

@@ -43,7 +43,7 @@ class ListModeSelectDialog : AlertDialogFragment<DialogListModeBinding>(),
 		binding.textViewGridTitle.isVisible = mode == ListMode.GRID
 		binding.sliderGrid.isVisible = mode == ListMode.GRID
 
-		binding.sliderGrid.setLabelFormatter(IntPercentLabelFormatter())
+		binding.sliderGrid.setLabelFormatter(IntPercentLabelFormatter(view.context))
 		binding.sliderGrid.setValueRounded(settings.gridSize.toFloat())
 		binding.sliderGrid.addOnSliderTouchListener(this)
 

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

@@ -3,9 +3,11 @@ package org.koitharu.kotatsu.list.ui
 import android.os.Bundle
 import android.view.*
 import androidx.annotation.CallSuper
-import androidx.appcompat.widget.PopupMenu
+import androidx.appcompat.app.AppCompatActivity
+import androidx.appcompat.view.ActionMode
+import androidx.collection.ArraySet
 import androidx.core.graphics.Insets
-import androidx.core.view.GravityCompat
+import androidx.core.view.isNotEmpty
 import androidx.core.view.updatePadding
 import androidx.recyclerview.widget.GridLayoutManager
 import androidx.swiperefreshlayout.widget.SwipeRefreshLayout
@@ -24,24 +26,31 @@ import org.koitharu.kotatsu.core.exceptions.resolve.ExceptionResolver
 import org.koitharu.kotatsu.core.prefs.ListMode
 import org.koitharu.kotatsu.databinding.FragmentListBinding
 import org.koitharu.kotatsu.details.ui.DetailsActivity
+import org.koitharu.kotatsu.download.ui.service.DownloadService
+import org.koitharu.kotatsu.favourites.ui.categories.select.FavouriteCategoriesDialog
 import org.koitharu.kotatsu.list.ui.adapter.MangaListAdapter
 import org.koitharu.kotatsu.list.ui.adapter.MangaListAdapter.Companion.ITEM_TYPE_MANGA_GRID
 import org.koitharu.kotatsu.list.ui.adapter.MangaListListener
 import org.koitharu.kotatsu.list.ui.model.ListModel
+import org.koitharu.kotatsu.list.ui.model.MangaItemModel
 import org.koitharu.kotatsu.main.ui.AppBarOwner
 import org.koitharu.kotatsu.main.ui.MainActivity
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaTag
+import org.koitharu.kotatsu.utils.ShareHelper
 import org.koitharu.kotatsu.utils.ext.*
 
 abstract class MangaListFragment :
 	BaseFragment<FragmentListBinding>(),
 	PaginationScrollListener.Callback,
 	MangaListListener,
-	SwipeRefreshLayout.OnRefreshListener {
+	SwipeRefreshLayout.OnRefreshListener,
+	ActionMode.Callback {
 
 	private var listAdapter: MangaListAdapter? = null
 	private var paginationListener: PaginationScrollListener? = null
+	private var selectionDecoration: MangaSelectionDecoration? = null
+	private var actionMode: ActionMode? = null
 	private val spanResolver = MangaListSpanResolver()
 	private val spanSizeLookup = SpanSizeLookup()
 	private val listCommitCallback = Runnable {
@@ -51,6 +60,12 @@ abstract class MangaListFragment :
 
 	protected abstract val viewModel: MangaListViewModel
 
+	protected val selectedItemsIds: Set<Long>
+		get() = selectionDecoration?.checkedItemsIds?.toSet().orEmpty()
+
+	protected val selectedItems: Set<Manga>
+		get() = collectSelectedItems()
+
 	override fun onCreate(savedInstanceState: Bundle?) {
 		super.onCreate(savedInstanceState)
 		setHasOptionsMenu(true)
@@ -68,10 +83,12 @@ abstract class MangaListFragment :
 			lifecycleOwner = viewLifecycleOwner,
 			listener = this,
 		)
+		selectionDecoration = MangaSelectionDecoration(view.context)
 		paginationListener = PaginationScrollListener(4, this)
 		with(binding.recyclerView) {
 			setHasFixedSize(true)
 			adapter = listAdapter
+			addItemDecoration(selectionDecoration!!)
 			addOnScrollListener(paginationListener!!)
 		}
 		with(binding.swipeRefreshLayout) {
@@ -91,6 +108,7 @@ abstract class MangaListFragment :
 	override fun onDestroyView() {
 		listAdapter = null
 		paginationListener = null
+		selectionDecoration = null
 		spanSizeLookup.invalidateCache()
 		super.onDestroyView()
 	}
@@ -109,22 +127,28 @@ abstract class MangaListFragment :
 	}
 
 	override fun onItemClick(item: Manga, view: View) {
+		if (selectionDecoration?.checkedItemsCount != 0) {
+			selectionDecoration?.toggleItemChecked(item.id)
+			if (selectionDecoration?.checkedItemsCount == 0) {
+				actionMode?.finish()
+			} else {
+				actionMode?.invalidate()
+				binding.recyclerView.invalidateItemDecorations()
+			}
+			return
+		}
 		startActivity(DetailsActivity.newIntent(context ?: return, item))
 	}
 
 	override fun onItemLongClick(item: Manga, view: View): Boolean {
-		val menu = PopupMenu(context ?: return false, view)
-		onCreatePopupMenu(menu.menuInflater, menu.menu, item)
-		return if (menu.menu.hasVisibleItems()) {
-			menu.setOnMenuItemClickListener {
-				onPopupMenuItemSelected(it, item)
-			}
-			menu.gravity = GravityCompat.END or Gravity.TOP
-			menu.show()
-			true
-		} else {
-			false
+		if (actionMode == null) {
+			actionMode = (activity as? AppCompatActivity)?.startSupportActionMode(this)
 		}
+		return actionMode?.also {
+			selectionDecoration?.setItemIsChecked(item.id, true)
+			binding.recyclerView.invalidateItemDecorations()
+			it.invalidate()
+		} != null
 	}
 
 	@CallSuper
@@ -238,12 +262,67 @@ abstract class MangaListFragment :
 					addOnLayoutChangeListener(spanResolver)
 				}
 			}
+			selectionDecoration?.let { addItemDecoration(it) }
 		}
 	}
 
-	protected open fun onCreatePopupMenu(inflater: MenuInflater, menu: Menu, data: Manga) = Unit
+	override fun onCreateActionMode(mode: ActionMode, menu: Menu): Boolean {
+		return menu.isNotEmpty()
+	}
 
-	protected open fun onPopupMenuItemSelected(item: MenuItem, data: Manga) = false
+	@CallSuper
+	override fun onPrepareActionMode(mode: ActionMode, menu: Menu): Boolean {
+		mode.title = selectionDecoration?.checkedItemsCount?.toString()
+		return true
+	}
+
+	override fun onActionItemClicked(mode: ActionMode, item: MenuItem): Boolean {
+		return when (item.itemId) {
+			R.id.action_select_all -> {
+				val ids = listAdapter?.items?.mapNotNull {
+					(it as? MangaItemModel)?.id
+				} ?: return false
+				selectionDecoration?.checkAll(ids)
+				binding.recyclerView.invalidateItemDecorations()
+				mode.invalidate()
+				true
+			}
+			R.id.action_share -> {
+				ShareHelper(requireContext()).shareMangaLinks(selectedItems)
+				mode.finish()
+				true
+			}
+			R.id.action_favourite -> {
+				FavouriteCategoriesDialog.show(childFragmentManager, selectedItems)
+				mode.finish()
+				true
+			}
+			R.id.action_save -> {
+				DownloadService.confirmAndStart(requireContext(), selectedItems)
+				mode.finish()
+				true
+			}
+			else -> false
+		}
+	}
+
+	override fun onDestroyActionMode(mode: ActionMode) {
+		selectionDecoration?.clearSelection()
+		binding.recyclerView.invalidateItemDecorations()
+		actionMode = null
+	}
+
+	private fun collectSelectedItems(): Set<Manga> {
+		val checkedIds = selectionDecoration?.checkedItemsIds ?: return emptySet()
+		val items = listAdapter?.items ?: return emptySet()
+		val result = ArraySet<Manga>(checkedIds.size)
+		for (item in items) {
+			if (item is MangaItemModel && item.id in checkedIds) {
+				result.add(item.manga)
+			}
+		}
+		return result
+	}
 
 	private inner class SpanSizeLookup : GridLayoutManager.SpanSizeLookup() {
 

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

@@ -0,0 +1,71 @@
+package org.koitharu.kotatsu.list.ui
+
+import android.content.Context
+import android.graphics.Canvas
+import android.graphics.Color
+import android.graphics.Paint
+import android.graphics.RectF
+import android.view.View
+import androidx.cardview.widget.CardView
+import androidx.core.content.ContextCompat
+import androidx.core.graphics.ColorUtils
+import androidx.recyclerview.widget.RecyclerView
+import androidx.recyclerview.widget.RecyclerView.NO_ID
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.base.ui.list.decor.AbstractSelectionItemDecoration
+import org.koitharu.kotatsu.list.ui.model.MangaItemModel
+import org.koitharu.kotatsu.utils.ext.getItem
+import org.koitharu.kotatsu.utils.ext.getThemeColor
+import com.google.android.material.R as materialR
+
+class MangaSelectionDecoration(context: Context) : AbstractSelectionItemDecoration() {
+
+	private val paint = Paint(Paint.ANTI_ALIAS_FLAG)
+	private val checkIcon = ContextCompat.getDrawable(context, materialR.drawable.ic_mtrl_checked_circle)
+	private val iconOffset = context.resources.getDimensionPixelOffset(R.dimen.grid_spacing_outer)
+	private val strokeColor = context.getThemeColor(materialR.attr.colorPrimary, Color.RED)
+	private val fillColor = ColorUtils.setAlphaComponent(
+		ColorUtils.blendARGB(strokeColor, context.getThemeColor(materialR.attr.colorSurface), 0.8f),
+		0x74
+	)
+
+	init {
+		hasBackground = false
+		hasForeground = true
+		isIncludeDecorAndMargins = false
+
+		paint.strokeWidth = context.resources.getDimension(R.dimen.selection_stroke_width)
+		checkIcon?.setTint(strokeColor)
+	}
+
+	override fun getItemId(parent: RecyclerView, child: View): Long {
+		val holder = parent.getChildViewHolder(child) ?: return NO_ID
+		val item = holder.getItem(MangaItemModel::class.java) ?: return NO_ID
+		return item.id
+	}
+
+	override fun onDrawForeground(
+		canvas: Canvas,
+		parent: RecyclerView,
+		child: View,
+		bounds: RectF,
+		state: RecyclerView.State,
+	) {
+		val radius = (child as? CardView)?.radius ?: 0f
+		paint.color = fillColor
+		paint.style = Paint.Style.FILL
+		canvas.drawRoundRect(bounds, radius, radius, paint)
+		paint.color = strokeColor
+		paint.style = Paint.Style.STROKE
+		canvas.drawRoundRect(bounds, radius, radius, paint)
+		checkIcon?.run {
+			setBounds(
+				(bounds.left + iconOffset).toInt(),
+				(bounds.top + iconOffset).toInt(),
+				(bounds.left + iconOffset + intrinsicWidth).toInt(),
+				(bounds.top + iconOffset + intrinsicHeight).toInt(),
+			)
+			draw(canvas)
+		}
+	}
+}

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

@@ -3,9 +3,9 @@ package org.koitharu.kotatsu.list.ui.model
 import org.koitharu.kotatsu.parsers.model.Manga
 
 data class MangaGridModel(
-	val id: Long,
+	override val id: Long,
 	val title: String,
 	val coverUrl: String,
-	val manga: Manga,
+	override val manga: Manga,
 	val counter: Int,
-) : ListModel
+) : MangaItemModel

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

@@ -0,0 +1,9 @@
+package org.koitharu.kotatsu.list.ui.model
+
+import org.koitharu.kotatsu.parsers.model.Manga
+
+sealed interface MangaItemModel : ListModel {
+
+	val id: Long
+	val manga: Manga
+}

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

@@ -3,12 +3,12 @@ package org.koitharu.kotatsu.list.ui.model
 import org.koitharu.kotatsu.parsers.model.Manga
 
 data class MangaListDetailedModel(
-	val id: Long,
+	override val id: Long,
 	val title: String,
 	val subtitle: String?,
 	val tags: String,
 	val coverUrl: String,
 	val rating: String?,
-	val manga: Manga,
+	override val manga: Manga,
 	val counter: Int,
-) : ListModel
+) : MangaItemModel

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

@@ -3,10 +3,10 @@ package org.koitharu.kotatsu.list.ui.model
 import org.koitharu.kotatsu.parsers.model.Manga
 
 data class MangaListModel(
-	val id: Long,
+	override val id: Long,
 	val title: String,
 	val subtitle: String,
 	val coverUrl: String,
-	val manga: Manga,
+	override val manga: Manga,
 	val counter: Int,
-) : ListModel
+) : MangaItemModel

app/src/main/java/org/koitharu/kotatsu/local/ui/LocalListFragment.kt

@@ -9,6 +9,9 @@ import android.view.MenuItem
 import android.view.View
 import androidx.activity.result.ActivityResultCallback
 import androidx.activity.result.contract.ActivityResultContracts
+import androidx.appcompat.view.ActionMode
+import androidx.core.net.toFile
+import androidx.core.net.toUri
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import com.google.android.material.snackbar.Snackbar
 import org.koin.androidx.viewmodel.ext.android.viewModel
@@ -16,8 +19,7 @@ import org.koitharu.kotatsu.BuildConfig
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.download.ui.service.DownloadService
 import org.koitharu.kotatsu.list.ui.MangaListFragment
-import org.koitharu.kotatsu.parsers.model.Manga
-import org.koitharu.kotatsu.parsers.util.ellipsize
+import org.koitharu.kotatsu.utils.ShareHelper
 import org.koitharu.kotatsu.utils.progress.Progress
 
 class LocalListFragment : MangaListFragment(), ActivityResultCallback<List<@JvmSuppressWildcards Uri>> {
@@ -46,7 +48,7 @@ class LocalListFragment : MangaListFragment(), ActivityResultCallback<List<@JvmS
 
 	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
 		super.onViewCreated(view, savedInstanceState)
-		viewModel.onMangaRemoved.observe(viewLifecycleOwner, ::onItemRemoved)
+		viewModel.onMangaRemoved.observe(viewLifecycleOwner) { onItemRemoved() }
 		viewModel.importProgress.observe(viewLifecycleOwner, ::onImportProgressChanged)
 	}
 
@@ -97,35 +99,41 @@ class LocalListFragment : MangaListFragment(), ActivityResultCallback<List<@JvmS
 		viewModel.importFiles(result)
 	}
 
-	override fun onCreatePopupMenu(inflater: MenuInflater, menu: Menu, data: Manga) {
-		super.onCreatePopupMenu(inflater, menu, data)
-		inflater.inflate(R.menu.popup_local, menu)
+	override fun onCreateActionMode(mode: ActionMode, menu: Menu): Boolean {
+		mode.menuInflater.inflate(R.menu.mode_local, menu)
+		return super.onCreateActionMode(mode, menu)
 	}
 
-	override fun onPopupMenuItemSelected(item: MenuItem, data: Manga): Boolean {
+	override fun onActionItemClicked(mode: ActionMode, item: MenuItem): Boolean {
 		return when (item.itemId) {
-			R.id.action_delete -> {
-				MaterialAlertDialogBuilder(context ?: return false)
-					.setTitle(R.string.delete_manga)
-					.setMessage(getString(R.string.text_delete_local_manga, data.title))
-					.setPositiveButton(R.string.delete) { _, _ ->
-						viewModel.delete(data)
-					}
-					.setNegativeButton(android.R.string.cancel, null)
-					.show()
+			R.id.action_remove -> {
+				showDeletionConfirm(selectedItemsIds, mode)
 				true
 			}
-			else -> super.onPopupMenuItemSelected(item, data)
+			R.id.action_share -> {
+				val files = selectedItems.map { it.url.toUri().toFile() }
+				ShareHelper(requireContext()).shareCbz(files)
+				mode.finish()
+				true
+			}
+			else -> super.onActionItemClicked(mode, item)
 		}
 	}
 
-	private fun onItemRemoved(item: Manga) {
-		Snackbar.make(
-			binding.recyclerView, getString(
-				R.string._s_deleted_from_local_storage,
-				item.title.ellipsize(16)
-			), Snackbar.LENGTH_SHORT
-		).show()
+	private fun showDeletionConfirm(ids: Set<Long>, mode: ActionMode) {
+		MaterialAlertDialogBuilder(context ?: return)
+			.setTitle(R.string.delete_manga)
+			.setMessage(getString(R.string.text_delete_local_manga_batch))
+			.setPositiveButton(R.string.delete) { _, _ ->
+				viewModel.delete(ids)
+				mode.finish()
+			}
+			.setNegativeButton(android.R.string.cancel, null)
+			.show()
+	}
+
+	private fun onItemRemoved() {
+		Snackbar.make(binding.recyclerView, R.string.removal_completed, Snackbar.LENGTH_SHORT).show()
 	}
 
 	private fun onImportProgressChanged(progress: Progress?) {

app/src/main/java/org/koitharu/kotatsu/local/ui/LocalListViewModel.kt

@@ -3,10 +3,12 @@ package org.koitharu.kotatsu.local.ui
 import android.net.Uri
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.viewModelScope
+import java.io.IOException
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.combine
+import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.withContext
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.os.ShortcutsRepository
@@ -19,7 +21,6 @@ import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.utils.SingleLiveEvent
 import org.koitharu.kotatsu.utils.ext.asLiveDataDistinct
 import org.koitharu.kotatsu.utils.progress.Progress
-import java.io.IOException
 
 class LocalListViewModel(
 	private val repository: LocalMangaRepository,
@@ -28,7 +29,7 @@ class LocalListViewModel(
 	private val shortcutsRepository: ShortcutsRepository,
 ) : MangaListViewModel(settings) {
 
-	val onMangaRemoved = SingleLiveEvent<Manga>()
+	val onMangaRemoved = SingleLiveEvent<Unit>()
 	val importProgress = MutableLiveData<Progress?>(null)
 	private val listError = MutableStateFlow<Throwable?>(null)
 	private val mangaList = MutableStateFlow<List<Manga>?>(null)
@@ -87,18 +88,23 @@ class LocalListViewModel(
 		}
 	}
 
-	fun delete(manga: Manga) {
-		launchJob {
+	fun delete(ids: Set<Long>) {
+		launchLoadingJob {
 			withContext(Dispatchers.Default) {
-				val original = repository.getRemoteManga(manga)
-				repository.delete(manga) || throw IOException("Unable to delete file")
-				runCatching {
-					historyRepository.deleteOrSwap(manga, original)
+				val itemsToRemove = checkNotNull(mangaList.value).filter { it.id in ids }
+				for (manga in itemsToRemove) {
+					val original = repository.getRemoteManga(manga)
+					repository.delete(manga) || throw IOException("Unable to delete file")
+					runCatching {
+						historyRepository.deleteOrSwap(manga, original)
+					}
+					mangaList.update { list ->
+						list?.filterNot { it.id == manga.id }
+					}
 				}
-				mangaList.value = mangaList.value?.filterNot { it.id == manga.id }
 			}
 			shortcutsRepository.updateShortcuts()
-			onMangaRemoved.call(manga)
+			onMangaRemoved.call(Unit)
 		}
 	}
 

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

@@ -8,18 +8,15 @@ import android.view.MenuItem
 import android.view.View
 import android.view.ViewGroup.MarginLayoutParams
 import androidx.appcompat.app.ActionBarDrawerToggle
+import androidx.appcompat.view.ActionMode
 import androidx.core.content.ContextCompat
 import androidx.core.graphics.Insets
-import androidx.core.view.GravityCompat
-import androidx.core.view.ViewCompat
-import androidx.core.view.updateLayoutParams
-import androidx.core.view.updatePadding
+import androidx.core.view.*
 import androidx.drawerlayout.widget.DrawerLayout
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.FragmentTransaction
 import androidx.fragment.app.commit
 import androidx.lifecycle.lifecycleScope
-import androidx.swiperefreshlayout.widget.CircularProgressDrawable
 import com.google.android.material.appbar.AppBarLayout
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import com.google.android.material.navigation.NavigationView
@@ -134,6 +131,7 @@ class MainActivity :
 		viewModel.onOpenReader.observe(this, this::onOpenReader)
 		viewModel.onError.observe(this, this::onError)
 		viewModel.isLoading.observe(this, this::onLoadingStateChanged)
+		viewModel.isResumeEnabled.observe(this, this::onResumeEnabledChanged)
 		viewModel.remoteSources.observe(this, this::updateSideMenu)
 		viewModel.isSuggestionsEnabled.observe(this, this::setSuggestionsEnabled)
 	}
@@ -288,6 +286,16 @@ class MainActivity :
 			}.show()
 	}
 
+	override fun onSupportActionModeStarted(mode: ActionMode) {
+		super.onSupportActionModeStarted(mode)
+		adjustDrawerLock()
+	}
+
+	override fun onSupportActionModeFinished(mode: ActionMode) {
+		super.onSupportActionModeFinished(mode)
+		adjustDrawerLock()
+	}
+
 	private fun onOpenReader(manga: Manga) {
 		val options = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 			ActivityOptions.makeClipRevealAnimation(
@@ -302,23 +310,15 @@ class MainActivity :
 	}
 
 	private fun onError(e: Throwable) {
-		Snackbar.make(binding.container, e.getDisplayMessage(resources), Snackbar.LENGTH_SHORT)
-			.show()
+		Snackbar.make(binding.container, e.getDisplayMessage(resources), Snackbar.LENGTH_SHORT).show()
 	}
 
 	private fun onLoadingStateChanged(isLoading: Boolean) {
 		binding.fab.isEnabled = !isLoading
-		if (isLoading) {
-			binding.fab.setImageDrawable(
-				CircularProgressDrawable(this).also {
-					it.setColorSchemeColors(R.color.kotatsu_onPrimaryContainer)
-					it.strokeWidth = resources.resolveDp(3.5f)
-					it.start()
-				}
-			)
-		} else {
-			binding.fab.setImageResource(R.drawable.ic_read_fill)
-		}
+	}
+
+	private fun onResumeEnabledChanged(isEnabled: Boolean) {
+		adjustFabVisibility(isResumeEnabled = isEnabled)
 	}
 
 	private fun updateSideMenu(remoteSources: List<MangaSource>) {
@@ -372,14 +372,14 @@ class MainActivity :
 	}
 
 	private fun onSearchOpened() {
-		drawer?.setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_CLOSED)
 		drawerToggle?.isDrawerIndicatorEnabled = false
+		adjustDrawerLock()
 		adjustFabVisibility(isSearchOpened = true)
 	}
 
 	private fun onSearchClosed() {
-		drawer?.setDrawerLockMode(DrawerLayout.LOCK_MODE_UNLOCKED)
 		drawerToggle?.isDrawerIndicatorEnabled = true
+		adjustDrawerLock()
 		adjustFabVisibility(isSearchOpened = false)
 	}
 
@@ -397,9 +397,27 @@ class MainActivity :
 	}
 
 	private fun adjustFabVisibility(
+		isResumeEnabled: Boolean = viewModel.isResumeEnabled.value == true,
 		topFragment: Fragment? = supportFragmentManager.findFragmentByTag(TAG_PRIMARY),
 		isSearchOpened: Boolean = supportFragmentManager.findFragmentByTag(TAG_SEARCH)?.isVisible == true,
 	) {
-		if (!isSearchOpened && topFragment is HistoryListFragment) binding.fab.show() else binding.fab.hide()
+		val fab = binding.fab
+		if (isResumeEnabled && !isSearchOpened && topFragment is HistoryListFragment) {
+			if (!fab.isVisible) {
+				fab.show()
+			}
+		} else {
+			if (fab.isVisible) {
+				fab.hide()
+			}
+		}
+	}
+
+	private fun adjustDrawerLock() {
+		val drawer = drawer ?: return
+		val isLocked = actionModeDelegate.isActionModeStarted || (drawerToggle?.isDrawerIndicatorEnabled == false)
+		drawer.setDrawerLockMode(
+			if (isLocked) DrawerLayout.LOCK_MODE_LOCKED_CLOSED else DrawerLayout.LOCK_MODE_UNLOCKED
+		)
 	}
 }

app/src/main/java/org/koitharu/kotatsu/main/ui/MainViewModel.kt

@@ -27,6 +27,10 @@ class MainViewModel(
 		.map { settings.isSuggestionsEnabled }
 		.asLiveDataDistinct(viewModelScope.coroutineContext + Dispatchers.Default)
 
+	val isResumeEnabled = historyRepository
+		.observeHasItems()
+		.asLiveDataDistinct(viewModelScope.coroutineContext + Dispatchers.Default)
+
 	val remoteSources = settings.observe()
 		.filter { it == AppSettings.KEY_SOURCES_ORDER || it == AppSettings.KEY_SOURCES_HIDDEN }
 		.onStart { emit("") }
@@ -35,9 +39,8 @@ class MainViewModel(
 
 	fun openLastReader() {
 		launchLoadingJob {
-			val manga = historyRepository.getList(0, 1).firstOrNull()
-				?: throw EmptyHistoryException()
+			val manga = historyRepository.getLastOrNull() ?: throw EmptyHistoryException()
 			onOpenReader.call(manga)
 		}
 	}
-}
+}

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

@@ -44,6 +44,7 @@ import org.koitharu.kotatsu.reader.ui.pager.standard.PagerReaderFragment
 import org.koitharu.kotatsu.reader.ui.pager.webtoon.WebtoonReaderFragment
 import org.koitharu.kotatsu.reader.ui.thumbnails.OnPageSelectListener
 import org.koitharu.kotatsu.reader.ui.thumbnails.PagesThumbnailsSheet
+import org.koitharu.kotatsu.settings.SettingsActivity
 import org.koitharu.kotatsu.utils.GridTouchHelper
 import org.koitharu.kotatsu.utils.ScreenOrientationHelper
 import org.koitharu.kotatsu.utils.ShareHelper
@@ -158,7 +159,7 @@ class ReaderActivity :
 				)
 			}
 			R.id.action_settings -> {
-				startActivity(SimpleSettingsActivity.newReaderSettingsIntent(this))
+				startActivity(SettingsActivity.newReaderSettingsIntent(this))
 			}
 			R.id.action_chapters -> {
 				ChaptersBottomSheet.show(
@@ -409,18 +410,18 @@ class ReaderActivity :
 
 		fun newIntent(context: Context, manga: Manga): Intent {
 			return Intent(context, ReaderActivity::class.java)
-				.putExtra(MangaIntent.KEY_MANGA, ParcelableManga(manga))
+				.putExtra(MangaIntent.KEY_MANGA, ParcelableManga(manga, withChapters = true))
 		}
 
 		fun newIntent(context: Context, manga: Manga, branch: String?): Intent {
 			return Intent(context, ReaderActivity::class.java)
-				.putExtra(MangaIntent.KEY_MANGA, ParcelableManga(manga))
+				.putExtra(MangaIntent.KEY_MANGA, ParcelableManga(manga, withChapters = true))
 				.putExtra(EXTRA_BRANCH, branch)
 		}
 
 		fun newIntent(context: Context, manga: Manga, state: ReaderState?): Intent {
 			return Intent(context, ReaderActivity::class.java)
-				.putExtra(MangaIntent.KEY_MANGA, ParcelableManga(manga))
+				.putExtra(MangaIntent.KEY_MANGA, ParcelableManga(manga, withChapters = true))
 				.putExtra(EXTRA_STATE, state)
 		}
 

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

@@ -143,7 +143,8 @@ class ReaderViewModel(
 				val page = getCurrentPage() ?: error("Page not found")
 				externalStorageHelper.savePage(page, destination)
 				onPageSaved.postCall(destination)
-			} catch (_: CancellationException) {
+			} catch (e: CancellationException) {
+				throw e
 			} catch (e: Exception) {
 				if (BuildConfig.DEBUG) {
 					e.printStackTrace()

app/src/main/java/org/koitharu/kotatsu/reader/ui/SimpleSettingsActivity.kt

@@ -1,80 +0,0 @@
-package org.koitharu.kotatsu.reader.ui
-
-import android.content.Context
-import android.content.Intent
-import android.os.Bundle
-import android.view.ViewGroup
-import androidx.core.graphics.Insets
-import androidx.core.view.updateLayoutParams
-import androidx.core.view.updatePadding
-import androidx.fragment.app.commit
-import com.google.android.material.appbar.AppBarLayout
-import org.koitharu.kotatsu.BuildConfig
-import org.koitharu.kotatsu.R
-import org.koitharu.kotatsu.base.ui.BaseActivity
-import org.koitharu.kotatsu.databinding.ActivitySettingsSimpleBinding
-import org.koitharu.kotatsu.main.ui.AppBarOwner
-import org.koitharu.kotatsu.parsers.model.MangaSource
-import org.koitharu.kotatsu.settings.*
-
-class SimpleSettingsActivity : BaseActivity<ActivitySettingsSimpleBinding>(), AppBarOwner {
-
-	override val appBar: AppBarLayout
-		get() = binding.appbar
-
-	override fun onCreate(savedInstanceState: Bundle?) {
-		super.onCreate(savedInstanceState)
-		setContentView(ActivitySettingsSimpleBinding.inflate(layoutInflater))
-		supportActionBar?.setDisplayHomeAsUpEnabled(true)
-		supportFragmentManager.commit {
-			replace(
-				R.id.container,
-				when (intent?.action) {
-					Intent.ACTION_MANAGE_NETWORK_USAGE -> NetworkSettingsFragment()
-					ACTION_READER -> ReaderSettingsFragment()
-					ACTION_SUGGESTIONS -> SuggestionsSettingsFragment()
-					ACTION_SOURCE -> SourceSettingsFragment.newInstance(
-						intent.getSerializableExtra(EXTRA_SOURCE) as? MangaSource ?: MangaSource.LOCAL
-					)
-					else -> MainSettingsFragment()
-				}
-			)
-		}
-	}
-
-	override fun onWindowInsetsChanged(insets: Insets) {
-		with(binding.toolbar) {
-			updatePadding(
-				left = insets.left,
-				right = insets.right
-			)
-			updateLayoutParams<ViewGroup.MarginLayoutParams> {
-				topMargin = insets.top
-			}
-		}
-	}
-
-	companion object {
-
-		private const val ACTION_READER =
-			"${BuildConfig.APPLICATION_ID}.action.MANAGE_READER_SETTINGS"
-		private const val ACTION_SUGGESTIONS =
-			"${BuildConfig.APPLICATION_ID}.action.MANAGE_SUGGESTIONS"
-		private const val ACTION_SOURCE =
-			"${BuildConfig.APPLICATION_ID}.action.MANAGE_SOURCE_SETTINGS"
-		private const val EXTRA_SOURCE = "source"
-
-		fun newReaderSettingsIntent(context: Context) =
-			Intent(context, SimpleSettingsActivity::class.java)
-				.setAction(ACTION_READER)
-
-		fun newSuggestionsSettingsIntent(context: Context) =
-			Intent(context, SimpleSettingsActivity::class.java)
-				.setAction(ACTION_SUGGESTIONS)
-
-		fun newSourceSettingsIntent(context: Context, source: MangaSource) =
-			Intent(context, SimpleSettingsActivity::class.java)
-				.setAction(ACTION_SOURCE)
-				.putExtra(EXTRA_SOURCE, source)
-	}
-}

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

@@ -109,7 +109,7 @@ class PageHolderDelegate(
 			state = State.LOADED
 			callback.onImageReady(file.toUri())
 		} catch (e: CancellationException) {
-			// do nothing
+			throw e
 		} catch (e: Exception) {
 			state = State.ERROR
 			error = e

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

@@ -14,7 +14,7 @@ import org.koitharu.kotatsu.reader.ui.pager.BaseReaderAdapter
 import org.koitharu.kotatsu.reader.ui.pager.ReaderPage
 import org.koitharu.kotatsu.utils.ext.doOnCurrentItemChanged
 import org.koitharu.kotatsu.utils.ext.findCenterViewPosition
-import org.koitharu.kotatsu.utils.ext.firstItem
+import org.koitharu.kotatsu.utils.ext.firstVisibleItemPosition
 import org.koitharu.kotatsu.utils.ext.viewLifecycleScope
 
 class WebtoonReaderFragment : BaseReader<FragmentReaderWebtoonBinding>() {
@@ -52,7 +52,7 @@ class WebtoonReaderFragment : BaseReader<FragmentReaderWebtoonBinding>() {
 				setItems.await() ?: return@launchWhenCreated
 				if (position != -1) {
 					with(binding.recyclerView) {
-						firstItem = position
+						firstVisibleItemPosition = position
 						post {
 							(findViewHolderForAdapterPosition(position) as? WebtoonHolder)
 								?.restoreScroll(pendingState.scroll)
@@ -91,6 +91,6 @@ class WebtoonReaderFragment : BaseReader<FragmentReaderWebtoonBinding>() {
 	}
 
 	override fun switchPageTo(position: Int, smooth: Boolean) {
-		binding.recyclerView.firstItem = position
+		binding.recyclerView.firstVisibleItemPosition = position
 	}
 }

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

@@ -3,13 +3,14 @@ package org.koitharu.kotatsu.remotelist.ui
 import android.view.Menu
 import android.view.MenuInflater
 import android.view.MenuItem
+import androidx.appcompat.view.ActionMode
 import org.koin.androidx.viewmodel.ext.android.viewModel
 import org.koin.core.parameter.parametersOf
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.list.ui.MangaListFragment
 import org.koitharu.kotatsu.list.ui.filter.FilterBottomSheet
 import org.koitharu.kotatsu.parsers.model.MangaSource
-import org.koitharu.kotatsu.reader.ui.SimpleSettingsActivity
+import org.koitharu.kotatsu.settings.SettingsActivity
 import org.koitharu.kotatsu.utils.ext.serializableArgument
 import org.koitharu.kotatsu.utils.ext.withArgs
 
@@ -34,10 +35,7 @@ class RemoteListFragment : MangaListFragment() {
 		return when (item.itemId) {
 			R.id.action_source_settings -> {
 				startActivity(
-					SimpleSettingsActivity.newSourceSettingsIntent(
-						context ?: return false,
-						source,
-					)
+					SettingsActivity.newSourceSettingsIntent(context ?: return false, source)
 				)
 				true
 			}
@@ -49,6 +47,11 @@ class RemoteListFragment : MangaListFragment() {
 		}
 	}
 
+	override fun onCreateActionMode(mode: ActionMode, menu: Menu): Boolean {
+		mode.menuInflater.inflate(R.menu.mode_remote, menu)
+		return super.onCreateActionMode(mode, menu)
+	}
+
 	override fun onFilterClick() {
 		FilterBottomSheet.show(childFragmentManager)
 	}

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

@@ -10,6 +10,8 @@ import kotlinx.coroutines.flow.*
 import kotlinx.coroutines.isActive
 import kotlinx.coroutines.withContext
 import org.koitharu.kotatsu.core.db.MangaDatabase
+import org.koitharu.kotatsu.core.db.entity.toManga
+import org.koitharu.kotatsu.core.db.entity.toMangaTag
 import org.koitharu.kotatsu.core.parser.MangaRepository
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.parsers.model.Manga
@@ -84,7 +86,7 @@ class MangaSearchRepository(
 		return when {
 			query.isNotEmpty() && source != null -> db.tagsDao.findTags(source.name, "%$query%", limit)
 			query.isNotEmpty() -> db.tagsDao.findTags("%$query%", limit)
-			source != null -> db.tagsDao.findTags(source.name, limit)
+			source != null -> db.tagsDao.findPopularTags(source.name, limit)
 			else -> db.tagsDao.findPopularTags(limit)
 		}.map {
 			it.toMangaTag()

app/src/main/java/org/koitharu/kotatsu/search/ui/SearchFragment.kt

@@ -1,7 +1,10 @@
 package org.koitharu.kotatsu.search.ui
 
+import android.view.Menu
+import androidx.appcompat.view.ActionMode
 import org.koin.androidx.viewmodel.ext.android.viewModel
 import org.koin.core.parameter.parametersOf
+import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.list.ui.MangaListFragment
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.utils.ext.serializableArgument
@@ -21,6 +24,11 @@ class SearchFragment : MangaListFragment() {
 		viewModel.loadNextPage()
 	}
 
+	override fun onCreateActionMode(mode: ActionMode, menu: Menu): Boolean {
+		mode.menuInflater.inflate(R.menu.mode_remote, menu)
+		return super.onCreateActionMode(mode, menu)
+	}
+
 	companion object {
 
 		private const val ARG_QUERY = "query"

app/src/main/java/org/koitharu/kotatsu/search/ui/global/GlobalSearchFragment.kt

@@ -1,12 +1,14 @@
 package org.koitharu.kotatsu.search.ui.global
 
+import android.view.Menu
+import androidx.appcompat.view.ActionMode
 import org.koin.androidx.viewmodel.ext.android.viewModel
 import org.koin.core.parameter.parametersOf
+import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.list.ui.MangaListFragment
 import org.koitharu.kotatsu.utils.ext.stringArgument
 import org.koitharu.kotatsu.utils.ext.withArgs
 
-
 class GlobalSearchFragment : MangaListFragment() {
 
 	override val viewModel by viewModel<GlobalSearchViewModel> {
@@ -17,6 +19,11 @@ class GlobalSearchFragment : MangaListFragment() {
 
 	override fun onScrolledToEnd() = Unit
 
+	override fun onCreateActionMode(mode: ActionMode, menu: Menu): Boolean {
+		mode.menuInflater.inflate(R.menu.mode_remote, menu)
+		return super.onCreateActionMode(mode, menu)
+	}
+
 	companion object {
 
 		private const val ARG_QUERY = "query"

app/src/main/java/org/koitharu/kotatsu/search/ui/suggestion/SearchSuggestionItemCallback.kt

@@ -31,7 +31,7 @@ class SearchSuggestionItemCallback(
 	): Boolean = false
 
 	override fun onSwiped(viewHolder: RecyclerView.ViewHolder, direction: Int) {
-		val item = viewHolder.getItem<SearchSuggestionItem.RecentQuery>() ?: return
+		val item = viewHolder.getItem(SearchSuggestionItem.RecentQuery::class.java) ?: return
 		listener.onRemoveQuery(item.query)
 	}
 

app/src/main/java/org/koitharu/kotatsu/search/ui/suggestion/model/SearchSuggestionItem.kt

@@ -4,7 +4,7 @@ import kotlinx.coroutines.flow.MutableStateFlow
 import org.koitharu.kotatsu.base.ui.widgets.ChipsView
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaSource
-import org.koitharu.kotatsu.utils.ext.areItemsEquals
+import org.koitharu.kotatsu.parsers.util.areItemsEquals
 
 sealed interface SearchSuggestionItem {
 

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

@@ -0,0 +1,101 @@
+package org.koitharu.kotatsu.settings
+
+import android.content.Intent
+import android.content.SharedPreferences
+import android.os.Bundle
+import android.view.View
+import androidx.appcompat.app.AppCompatDelegate
+import androidx.preference.ListPreference
+import androidx.preference.Preference
+import androidx.preference.TwoStatePreference
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.base.ui.BasePreferenceFragment
+import org.koitharu.kotatsu.core.prefs.AppSettings
+import org.koitharu.kotatsu.core.prefs.ListMode
+import org.koitharu.kotatsu.settings.protect.ProtectSetupActivity
+import org.koitharu.kotatsu.settings.utils.SliderPreference
+import org.koitharu.kotatsu.utils.ext.names
+import org.koitharu.kotatsu.utils.ext.setDefaultValueCompat
+import java.util.*
+
+class AppearanceSettingsFragment :
+	BasePreferenceFragment(R.string.appearance),
+	SharedPreferences.OnSharedPreferenceChangeListener {
+
+	override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
+		addPreferencesFromResource(R.xml.pref_appearance)
+		findPreference<SliderPreference>(AppSettings.KEY_GRID_SIZE)?.run {
+			val pattern = context.getString(R.string.percent_string_pattern)
+			summary = pattern.format(value.toString())
+			setOnPreferenceChangeListener { preference, newValue ->
+				preference.summary = pattern.format(newValue.toString())
+				true
+			}
+		}
+		preferenceScreen?.findPreference<ListPreference>(AppSettings.KEY_LIST_MODE)?.run {
+			entryValues = ListMode.values().names()
+			setDefaultValueCompat(ListMode.GRID.name)
+		}
+		findPreference<Preference>(AppSettings.KEY_DYNAMIC_THEME)?.isVisible = AppSettings.isDynamicColorAvailable
+		findPreference<ListPreference>(AppSettings.KEY_DATE_FORMAT)?.run {
+			entryValues = resources.getStringArray(R.array.date_formats)
+			val now = Date().time
+			entries = entryValues.map { value ->
+				val formattedDate = settings.getDateFormat(value.toString()).format(now)
+				if (value == "") {
+					"${context.getString(R.string.system_default)} ($formattedDate)"
+				} else {
+					formattedDate
+				}
+			}.toTypedArray()
+			setDefaultValueCompat("")
+			summary = "%s"
+		}
+		findPreference<TwoStatePreference>(AppSettings.KEY_PROTECT_APP)
+			?.isChecked = !settings.appPassword.isNullOrEmpty()
+	}
+
+	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+		super.onViewCreated(view, savedInstanceState)
+		settings.subscribe(this)
+	}
+
+	override fun onDestroyView() {
+		settings.unsubscribe(this)
+		super.onDestroyView()
+	}
+
+	override fun onSharedPreferenceChanged(prefs: SharedPreferences?, key: String?) {
+		when (key) {
+			AppSettings.KEY_THEME -> {
+				AppCompatDelegate.setDefaultNightMode(settings.theme)
+			}
+			AppSettings.KEY_DYNAMIC_THEME -> {
+				findPreference<Preference>(key)?.setSummary(R.string.restart_required)
+			}
+			AppSettings.KEY_THEME_AMOLED -> {
+				findPreference<Preference>(key)?.setSummary(R.string.restart_required)
+			}
+			AppSettings.KEY_APP_PASSWORD -> {
+				findPreference<TwoStatePreference>(AppSettings.KEY_PROTECT_APP)
+					?.isChecked = !settings.appPassword.isNullOrEmpty()
+			}
+		}
+	}
+
+	override fun onPreferenceTreeClick(preference: Preference): Boolean {
+		return when (preference.key) {
+			AppSettings.KEY_PROTECT_APP -> {
+				val pref = (preference as? TwoStatePreference ?: return false)
+				if (pref.isChecked) {
+					pref.isChecked = false
+					startActivity(Intent(preference.context, ProtectSetupActivity::class.java))
+				} else {
+					settings.appPassword = null
+				}
+				true
+			}
+			else -> super.onPreferenceTreeClick(preference)
+		}
+	}
+}

app/src/main/java/org/koitharu/kotatsu/settings/ContentSettingsFragment.kt

@@ -0,0 +1,96 @@
+package org.koitharu.kotatsu.settings
+
+import android.content.SharedPreferences
+import android.os.Bundle
+import android.view.View
+import androidx.preference.Preference
+import java.io.File
+import kotlinx.coroutines.launch
+import org.koin.android.ext.android.inject
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.base.ui.BasePreferenceFragment
+import org.koitharu.kotatsu.base.ui.dialog.StorageSelectDialog
+import org.koitharu.kotatsu.core.prefs.AppSettings
+import org.koitharu.kotatsu.local.data.LocalStorageManager
+import org.koitharu.kotatsu.parsers.model.MangaSource
+import org.koitharu.kotatsu.utils.ext.getStorageName
+import org.koitharu.kotatsu.utils.ext.viewLifecycleScope
+
+class ContentSettingsFragment :
+	BasePreferenceFragment(R.string.content),
+	SharedPreferences.OnSharedPreferenceChangeListener,
+	StorageSelectDialog.OnStorageSelectListener {
+
+	private val storageManager by inject<LocalStorageManager>()
+
+	override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
+		addPreferencesFromResource(R.xml.pref_content)
+
+		findPreference<Preference>(AppSettings.KEY_SUGGESTIONS)?.setSummary(
+			if (settings.isSuggestionsEnabled) R.string.enabled else R.string.disabled
+		)
+		bindRemoteSourcesSummary()
+	}
+
+	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+		super.onViewCreated(view, savedInstanceState)
+		findPreference<Preference>(AppSettings.KEY_LOCAL_STORAGE)?.bindStorageName()
+		settings.subscribe(this)
+	}
+
+	override fun onDestroyView() {
+		settings.unsubscribe(this)
+		super.onDestroyView()
+	}
+
+	override fun onSharedPreferenceChanged(prefs: SharedPreferences?, key: String?) {
+		when (key) {
+			AppSettings.KEY_LOCAL_STORAGE -> {
+				findPreference<Preference>(key)?.bindStorageName()
+			}
+			AppSettings.KEY_SUGGESTIONS -> {
+				findPreference<Preference>(AppSettings.KEY_SUGGESTIONS)?.setSummary(
+					if (settings.isSuggestionsEnabled) R.string.enabled else R.string.disabled
+				)
+			}
+			AppSettings.KEY_SOURCES_HIDDEN -> {
+				bindRemoteSourcesSummary()
+			}
+		}
+	}
+
+	override fun onPreferenceTreeClick(preference: Preference): Boolean {
+		return when (preference.key) {
+			AppSettings.KEY_LOCAL_STORAGE -> {
+				val ctx = context ?: return false
+				StorageSelectDialog.Builder(ctx, storageManager, this)
+					.setTitle(preference.title ?: "")
+					.setNegativeButton(android.R.string.cancel)
+					.create()
+					.show()
+				true
+			}
+			else -> super.onPreferenceTreeClick(preference)
+		}
+	}
+
+	override fun onStorageSelected(file: File) {
+		settings.mangaStorageDir = file
+	}
+
+	private fun Preference.bindStorageName() {
+		viewLifecycleScope.launch {
+			val storage = storageManager.getDefaultWriteableDir()
+			summary = storage?.getStorageName(context) ?: getString(R.string.not_available)
+		}
+	}
+
+	private fun bindRemoteSourcesSummary() {
+		findPreference<Preference>(AppSettings.KEY_REMOTE_SOURCES)?.run {
+			val total = MangaSource.values().size - 1
+			summary = getString(
+				R.string.enabled_d_of_d, total - settings.hiddenSources.size, total
+			)
+		}
+	}
+}

app/src/main/java/org/koitharu/kotatsu/settings/MainSettingsFragment.kt

@@ -1,182 +0,0 @@
-package org.koitharu.kotatsu.settings
-
-import android.content.ComponentName
-import android.content.Intent
-import android.content.SharedPreferences
-import android.os.Bundle
-import android.view.Menu
-import android.view.MenuInflater
-import android.view.MenuItem
-import android.view.View
-import androidx.appcompat.app.AppCompatDelegate
-import androidx.preference.ListPreference
-import androidx.preference.Preference
-import androidx.preference.PreferenceScreen
-import androidx.preference.TwoStatePreference
-import kotlinx.coroutines.launch
-import org.koin.android.ext.android.inject
-import org.koitharu.kotatsu.R
-import org.koitharu.kotatsu.base.ui.BasePreferenceFragment
-import org.koitharu.kotatsu.base.ui.dialog.StorageSelectDialog
-import org.koitharu.kotatsu.core.prefs.AppSettings
-import org.koitharu.kotatsu.core.prefs.ListMode
-import org.koitharu.kotatsu.local.data.LocalStorageManager
-import org.koitharu.kotatsu.parsers.model.MangaSource
-import org.koitharu.kotatsu.settings.protect.ProtectSetupActivity
-import org.koitharu.kotatsu.settings.utils.SliderPreference
-import org.koitharu.kotatsu.utils.ext.getStorageName
-import org.koitharu.kotatsu.utils.ext.names
-import org.koitharu.kotatsu.utils.ext.setDefaultValueCompat
-import org.koitharu.kotatsu.utils.ext.viewLifecycleScope
-import java.io.File
-import java.util.*
-
-
-class MainSettingsFragment : BasePreferenceFragment(R.string.settings),
-	SharedPreferences.OnSharedPreferenceChangeListener,
-	StorageSelectDialog.OnStorageSelectListener {
-
-	private val storageManager by inject<LocalStorageManager>()
-
-	override fun onCreate(savedInstanceState: Bundle?) {
-		super.onCreate(savedInstanceState)
-		setHasOptionsMenu(true)
-	}
-
-	override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
-		addPreferencesFromResource(R.xml.pref_main)
-		findPreference<SliderPreference>(AppSettings.KEY_GRID_SIZE)?.run {
-			summary = "%d%%".format(value)
-			setOnPreferenceChangeListener { preference, newValue ->
-				preference.summary = "%d%%".format(newValue)
-				true
-			}
-		}
-		preferenceScreen?.findPreference<ListPreference>(AppSettings.KEY_LIST_MODE)?.run {
-			entryValues = ListMode.values().names()
-			setDefaultValueCompat(ListMode.GRID.name)
-		}
-		findPreference<Preference>(AppSettings.KEY_DYNAMIC_THEME)?.isVisible =
-			AppSettings.isDynamicColorAvailable
-		findPreference<ListPreference>(AppSettings.KEY_DATE_FORMAT)?.run {
-			entryValues = resources.getStringArray(R.array.date_formats)
-			val now = Date().time
-			entries = entryValues.map { value ->
-				val formattedDate = settings.getDateFormat(value.toString()).format(now)
-				if (value == "") {
-					"${context.getString(R.string.system_default)} ($formattedDate)"
-				} else {
-					formattedDate
-				}
-			}.toTypedArray()
-			setDefaultValueCompat("")
-			summary = "%s"
-		}
-		findPreference<Preference>(AppSettings.KEY_SUGGESTIONS)?.setSummary(
-			if (settings.isSuggestionsEnabled) R.string.enabled else R.string.disabled
-		)
-	}
-
-	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-		super.onViewCreated(view, savedInstanceState)
-		findPreference<Preference>(AppSettings.KEY_LOCAL_STORAGE)?.bindStorageName()
-		findPreference<TwoStatePreference>(AppSettings.KEY_PROTECT_APP)?.isChecked =
-			!settings.appPassword.isNullOrEmpty()
-		settings.subscribe(this)
-	}
-
-	override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
-		super.onCreateOptionsMenu(menu, inflater)
-		inflater.inflate(R.menu.opt_settings, menu)
-	}
-
-	override fun onOptionsItemSelected(item: MenuItem): Boolean {
-		return when (item.itemId) {
-			R.id.action_leaks -> {
-				val intent = Intent()
-				intent.component = ComponentName(requireContext(), "leakcanary.internal.activity.LeakActivity")
-				intent.flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TOP
-				startActivity(intent)
-				true
-			}
-			else -> super.onOptionsItemSelected(item)
-		}
-	}
-
-	override fun onDestroyView() {
-		settings.unsubscribe(this)
-		super.onDestroyView()
-	}
-
-	override fun onSharedPreferenceChanged(sharedPreferences: SharedPreferences, key: String?) {
-		when (key) {
-			AppSettings.KEY_THEME -> {
-				AppCompatDelegate.setDefaultNightMode(settings.theme)
-			}
-			AppSettings.KEY_DYNAMIC_THEME -> {
-				findPreference<Preference>(key)?.setSummary(R.string.restart_required)
-			}
-			AppSettings.KEY_THEME_AMOLED -> {
-				findPreference<Preference>(key)?.setSummary(R.string.restart_required)
-			}
-			AppSettings.KEY_LOCAL_STORAGE -> {
-				findPreference<Preference>(key)?.bindStorageName()
-			}
-			AppSettings.KEY_APP_PASSWORD -> {
-				findPreference<TwoStatePreference>(AppSettings.KEY_PROTECT_APP)
-					?.isChecked = !settings.appPassword.isNullOrEmpty()
-			}
-			AppSettings.KEY_SUGGESTIONS -> {
-				findPreference<Preference>(AppSettings.KEY_SUGGESTIONS)?.setSummary(
-					if (settings.isSuggestionsEnabled) R.string.enabled else R.string.disabled
-				)
-			}
-		}
-	}
-
-	override fun onResume() {
-		super.onResume()
-		findPreference<PreferenceScreen>(AppSettings.KEY_REMOTE_SOURCES)?.run {
-			val total = MangaSource.values().size - 1
-			summary = getString(
-				R.string.enabled_d_of_d, total - settings.hiddenSources.size, total
-			)
-		}
-	}
-
-	override fun onPreferenceTreeClick(preference: Preference): Boolean {
-		return when (preference.key) {
-			AppSettings.KEY_LOCAL_STORAGE -> {
-				val ctx = context ?: return false
-				StorageSelectDialog.Builder(ctx, storageManager, this)
-					.setTitle(preference.title ?: "")
-					.setNegativeButton(android.R.string.cancel)
-					.create()
-					.show()
-				true
-			}
-			AppSettings.KEY_PROTECT_APP -> {
-				val pref = (preference as? TwoStatePreference ?: return false)
-				if (pref.isChecked) {
-					pref.isChecked = false
-					startActivity(Intent(preference.context, ProtectSetupActivity::class.java))
-				} else {
-					settings.appPassword = null
-				}
-				true
-			}
-			else -> super.onPreferenceTreeClick(preference)
-		}
-	}
-
-	override fun onStorageSelected(file: File) {
-		settings.mangaStorageDir = file
-	}
-
-	private fun Preference.bindStorageName() {
-		viewLifecycleScope.launch {
-			val storage = storageManager.getDefaultWriteableDir()
-			summary = storage?.getStorageName(context) ?: getString(R.string.not_available)
-		}
-	}
-}

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

@@ -4,9 +4,9 @@ import android.os.Bundle
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.base.ui.BasePreferenceFragment
 
-class NetworkSettingsFragment : BasePreferenceFragment(R.string.settings) {
+class RootSettingsFragment : BasePreferenceFragment(R.string.settings) {
 
 	override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
-		//TODO https://developer.android.com/training/basics/network-ops/managing
+		addPreferencesFromResource(R.xml.pref_root)
 	}
 }

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

@@ -1,9 +1,13 @@
 package org.koitharu.kotatsu.settings
 
+import android.content.ComponentName
 import android.content.Context
 import android.content.Intent
 import android.os.Bundle
+import android.view.Menu
+import android.view.MenuItem
 import androidx.core.graphics.Insets
+import androidx.core.view.updatePadding
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.FragmentManager
 import androidx.fragment.app.FragmentTransaction
@@ -11,6 +15,7 @@ import androidx.fragment.app.commit
 import androidx.preference.Preference
 import androidx.preference.PreferenceFragmentCompat
 import com.google.android.material.appbar.AppBarLayout
+import org.koitharu.kotatsu.BuildConfig
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.base.ui.BaseActivity
 import org.koitharu.kotatsu.base.ui.util.RecyclerViewOwner
@@ -34,9 +39,7 @@ class SettingsActivity :
 		supportActionBar?.setDisplayHomeAsUpEnabled(true)
 
 		if (supportFragmentManager.findFragmentById(R.id.container) == null) {
-			supportFragmentManager.commit {
-				replace(R.id.container, MainSettingsFragment())
-			}
+			openDefaultFragment()
 		}
 	}
 
@@ -55,6 +58,22 @@ class SettingsActivity :
 		super.onStop()
 	}
 
+	override fun onCreateOptionsMenu(menu: Menu): Boolean {
+		menuInflater.inflate(R.menu.opt_settings, menu)
+		return super.onCreateOptionsMenu(menu)
+	}
+
+	override fun onOptionsItemSelected(item: MenuItem): Boolean = when (item.itemId) {
+		R.id.action_leaks -> {
+			val intent = Intent()
+			intent.component = ComponentName(this, "leakcanary.internal.activity.LeakActivity")
+			intent.flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TOP
+			startActivity(intent)
+			true
+		}
+		else -> super.onOptionsItemSelected(item)
+	}
+
 	override fun onBackStackChanged() {
 		val fragment = supportFragmentManager.findFragmentById(R.id.container) as? RecyclerViewOwner ?: return
 		val recyclerView = fragment.recyclerView
@@ -70,32 +89,66 @@ class SettingsActivity :
 		val fm = supportFragmentManager
 		val fragment = fm.fragmentFactory.instantiate(classLoader, pref.fragment ?: return false)
 		fragment.arguments = pref.extras
-		fragment.setTargetFragment(caller, 0)
+		// fragment.setTargetFragment(caller, 0)
 		openFragment(fragment)
 		return true
 	}
 
-	fun openMangaSourceSettings(mangaSource: MangaSource) {
-		openFragment(SourceSettingsFragment.newInstance(mangaSource))
+	override fun onWindowInsetsChanged(insets: Insets) {
+		binding.appbar.updatePadding(
+			left = insets.left,
+			right = insets.right,
+		)
+		binding.container.updatePadding(
+			left = insets.left,
+			right = insets.right,
+		)
 	}
 
-	fun openNotificationSettingsLegacy() {
-		openFragment(NotificationSettingsLegacyFragment())
-	}
-
-	private fun openFragment(fragment: Fragment) {
+	fun openFragment(fragment: Fragment) {
 		supportFragmentManager.commit {
-			setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN)
-			replace(R.id.container, fragment)
 			setReorderingAllowed(true)
+			replace(R.id.container, fragment)
+			setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE)
 			addToBackStack(null)
 		}
 	}
 
-	override fun onWindowInsetsChanged(insets: Insets) = Unit
+	private fun openDefaultFragment() {
+		val fragment = when (intent?.action) {
+			ACTION_READER -> ReaderSettingsFragment()
+			ACTION_SUGGESTIONS -> SuggestionsSettingsFragment()
+			ACTION_SOURCE -> SourceSettingsFragment.newInstance(
+				intent.getSerializableExtra(EXTRA_SOURCE) as? MangaSource ?: MangaSource.LOCAL
+			)
+			else -> SettingsHeadersFragment()
+		}
+		supportFragmentManager.commit {
+			setReorderingAllowed(true)
+			replace(R.id.container, fragment)
+		}
+	}
 
 	companion object {
 
+		private const val ACTION_READER = "${BuildConfig.APPLICATION_ID}.action.MANAGE_READER_SETTINGS"
+		private const val ACTION_SUGGESTIONS = "${BuildConfig.APPLICATION_ID}.action.MANAGE_SUGGESTIONS"
+		private const val ACTION_SOURCE = "${BuildConfig.APPLICATION_ID}.action.MANAGE_SOURCE_SETTINGS"
+		private const val EXTRA_SOURCE = "source"
+
 		fun newIntent(context: Context) = Intent(context, SettingsActivity::class.java)
+
+		fun newReaderSettingsIntent(context: Context) =
+			Intent(context, SettingsActivity::class.java)
+				.setAction(ACTION_READER)
+
+		fun newSuggestionsSettingsIntent(context: Context) =
+			Intent(context, SettingsActivity::class.java)
+				.setAction(ACTION_SUGGESTIONS)
+
+		fun newSourceSettingsIntent(context: Context, source: MangaSource) =
+			Intent(context, SettingsActivity::class.java)
+				.setAction(ACTION_SOURCE)
+				.putExtra(EXTRA_SOURCE, source)
 	}
 }

app/src/main/java/org/koitharu/kotatsu/settings/SettingsHeadersFragment.kt

@@ -0,0 +1,49 @@
+package org.koitharu.kotatsu.settings
+
+import android.os.Bundle
+import android.view.View
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.FragmentTransaction
+import androidx.fragment.app.commit
+import androidx.preference.PreferenceFragmentCompat
+import androidx.preference.PreferenceHeaderFragmentCompat
+import androidx.slidingpanelayout.widget.SlidingPaneLayout
+import org.koitharu.kotatsu.R
+
+class SettingsHeadersFragment : PreferenceHeaderFragmentCompat(), SlidingPaneLayout.PanelSlideListener {
+
+	private var currentTitle: CharSequence? = null
+
+	override fun onCreatePreferenceHeader(): PreferenceFragmentCompat = RootSettingsFragment()
+
+	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+		super.onViewCreated(view, savedInstanceState)
+		slidingPaneLayout.addPanelSlideListener(this)
+	}
+
+	override fun onPanelSlide(panel: View, slideOffset: Float) = Unit
+
+	override fun onPanelOpened(panel: View) {
+		activity?.title = currentTitle ?: getString(R.string.settings)
+	}
+
+	override fun onPanelClosed(panel: View) {
+		activity?.setTitle(R.string.settings)
+	}
+
+	fun setTitle(title: CharSequence?) {
+		currentTitle = title
+		if (slidingPaneLayout.isSlideable && slidingPaneLayout.isOpen) {
+			activity?.title = title
+		}
+	}
+
+	fun openFragment(fragment: Fragment) {
+		childFragmentManager.commit {
+			setReorderingAllowed(true)
+			replace(androidx.preference.R.id.preferences_detail, fragment)
+			setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE)
+			addToBackStack(null)
+		}
+	}
+}

app/src/main/java/org/koitharu/kotatsu/settings/SettingsModule.kt

@@ -18,7 +18,7 @@ val settingsModule
 
 		single { BackupRepository(get()) }
 		single { RestoreRepository(get()) }
-		single { AppSettings(androidContext()) }
+		single(createdAtStart = true) { AppSettings(androidContext()) }
 
 		viewModel { BackupViewModel(get(), androidContext()) }
 		viewModel { params ->

app/src/main/java/org/koitharu/kotatsu/settings/SourceSettingsFragment.kt

@@ -25,7 +25,7 @@ class SourceSettingsFragment : BasePreferenceFragment(0) {
 
 	override fun onResume() {
 		super.onResume()
-		activity?.title = source.title
+		setTitle(source.title)
 	}
 
 	override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {

app/src/main/java/org/koitharu/kotatsu/settings/SuggestionsSettingsFragment.kt

@@ -4,10 +4,13 @@ import android.content.SharedPreferences
 import android.os.Bundle
 import androidx.lifecycle.lifecycleScope
 import kotlinx.coroutines.launch
+import org.koin.android.ext.android.get
 import org.koin.android.ext.android.inject
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.base.ui.BasePreferenceFragment
 import org.koitharu.kotatsu.core.prefs.AppSettings
+import org.koitharu.kotatsu.settings.utils.MultiAutoCompleteTextViewPreference
+import org.koitharu.kotatsu.settings.utils.TagsAutoCompleteProvider
 import org.koitharu.kotatsu.suggestions.domain.SuggestionRepository
 import org.koitharu.kotatsu.suggestions.ui.SuggestionsWorker
 
@@ -23,6 +26,11 @@ class SuggestionsSettingsFragment : BasePreferenceFragment(R.string.suggestions)
 
 	override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
 		addPreferencesFromResource(R.xml.pref_suggestions)
+
+		findPreference<MultiAutoCompleteTextViewPreference>(AppSettings.KEY_SUGGESTIONS_EXCLUDE_TAGS)?.run {
+			autoCompleteProvider = TagsAutoCompleteProvider(get())
+			summaryProvider = MultiAutoCompleteTextViewPreference.SimpleSummaryProvider(summary)
+		}
 	}
 
 	override fun onDestroy() {

app/src/main/java/org/koitharu/kotatsu/settings/TrackerSettingsFragment.kt

@@ -31,7 +31,6 @@ class TrackerSettingsFragment : BasePreferenceFragment(R.string.check_for_new_ch
 					append(getString(R.string.read_more))
 				}
 			}
-			warningPreference
 		}
 	}
 
@@ -43,10 +42,10 @@ class TrackerSettingsFragment : BasePreferenceFragment(R.string.check_for_new_ch
 						.putExtra(Settings.EXTRA_APP_PACKAGE, requireContext().packageName)
 						.putExtra(Settings.EXTRA_CHANNEL_ID, TrackWorker.CHANNEL_ID)
 					startActivity(intent)
+					true
 				} else {
-					(activity as? SettingsActivity)?.openNotificationSettingsLegacy()
+					super.onPreferenceTreeClick(preference)
 				}
-				true
 			}
 			else -> super.onPreferenceTreeClick(preference)
 		}

app/src/main/java/org/koitharu/kotatsu/settings/about/AboutSettingsFragment.kt

@@ -1,13 +1,13 @@
 package org.koitharu.kotatsu.settings.about
 
+import android.content.Intent
 import android.os.Bundle
-import android.view.View
+import androidx.core.net.toUri
 import androidx.preference.Preference
 import kotlinx.coroutines.launch
 import org.koitharu.kotatsu.BuildConfig
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.base.ui.BasePreferenceFragment
-import org.koitharu.kotatsu.browser.BrowserActivity
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.settings.AppUpdateChecker
 import org.koitharu.kotatsu.utils.ext.viewLifecycleScope
@@ -16,20 +16,16 @@ class AboutSettingsFragment : BasePreferenceFragment(R.string.about) {
 
 	override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
 		addPreferencesFromResource(R.xml.pref_about)
-	}
-
-	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-		super.onViewCreated(view, savedInstanceState)
+		val isUpdateSupported = AppUpdateChecker.isUpdateSupported(requireContext())
 		findPreference<Preference>(AppSettings.KEY_APP_UPDATE_AUTO)?.run {
-			isVisible = AppUpdateChecker.isUpdateSupported(context)
+			isVisible = isUpdateSupported
 		}
 		findPreference<Preference>(AppSettings.KEY_APP_VERSION)?.run {
 			title = getString(R.string.app_version, BuildConfig.VERSION_NAME)
-			isEnabled = AppUpdateChecker.isUpdateSupported(context)
+			isEnabled = isUpdateSupported
 		}
 	}
 
-
 	override fun onPreferenceTreeClick(preference: Preference): Boolean {
 		return when (preference.key) {
 			AppSettings.KEY_APP_VERSION -> {
@@ -37,39 +33,19 @@ class AboutSettingsFragment : BasePreferenceFragment(R.string.about) {
 				true
 			}
 			AppSettings.KEY_APP_TRANSLATION -> {
-				startActivity(context?.let { BrowserActivity.newIntent(it,
-					"https://hosted.weblate.org/engage/kotatsu",
-					resources.getString(R.string.about_app_translation)) })
+				openLink(getString(R.string.url_weblate), preference.title)
 				true
 			}
 			AppSettings.KEY_FEEDBACK_4PDA -> {
-				startActivity(context?.let { BrowserActivity.newIntent(it,
-					"https://4pda.to/forum/index.php?showtopic=697669",
-					resources.getString(R.string.about_feedback_4pda)) })
+				openLink(getString(R.string.url_forpda), preference.title)
 				true
 			}
 			AppSettings.KEY_FEEDBACK_DISCORD -> {
-				startActivity(context?.let { BrowserActivity.newIntent(it,
-					"https://discord.gg/NNJ5RgVBC5",
-					"Discord") })
+				openLink(getString(R.string.url_discord), preference.title)
 				true
 			}
 			AppSettings.KEY_FEEDBACK_GITHUB -> {
-				startActivity(context?.let { BrowserActivity.newIntent(it,
-					"https://github.com/nv95/Kotatsu/issues",
-					"GitHub") })
-				true
-			}
-			AppSettings.KEY_SUPPORT_DEVELOPER -> {
-				startActivity(context?.let { BrowserActivity.newIntent(it,
-					"https://yoomoney.ru/to/410012543938752",
-					resources.getString(R.string.about_support_developer)) })
-				true
-			}
-			AppSettings.KEY_APP_GRATITUDES -> {
-				startActivity(context?.let { BrowserActivity.newIntent(it,
-					"https://github.com/nv95/Kotatsu/graphs/contributors",
-					resources.getString(R.string.about_gratitudes)) })
+				openLink(getString(R.string.url_github_issues), preference.title)
 				true
 			}
 			else -> super.onPreferenceTreeClick(preference)
@@ -95,4 +71,16 @@ class AboutSettingsFragment : BasePreferenceFragment(R.string.about) {
 			}
 		}
 	}
-}
+
+	private fun openLink(url: String, title: CharSequence?) {
+		val intent = Intent(Intent.ACTION_VIEW)
+		intent.data = url.toUri()
+		startActivity(
+			if (title != null) {
+				Intent.createChooser(intent, title)
+			} else {
+				intent
+			}
+		)
+	}
+}

app/src/main/java/org/koitharu/kotatsu/settings/about/LicenseFragment.kt

@@ -1,41 +0,0 @@
-package org.koitharu.kotatsu.settings.about
-
-import android.os.Bundle
-import android.text.SpannableStringBuilder
-import android.text.method.LinkMovementMethod
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import androidx.core.graphics.Insets
-import androidx.core.text.HtmlCompat
-import androidx.core.text.parseAsHtml
-import org.koitharu.kotatsu.R
-import org.koitharu.kotatsu.base.ui.BaseFragment
-import org.koitharu.kotatsu.databinding.FragmentCopyrightBinding
-
-class LicenseFragment : BaseFragment<FragmentCopyrightBinding>() {
-
-	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-		super.onViewCreated(view, savedInstanceState)
-		binding.textView.apply {
-			text =
-				SpannableStringBuilder(resources.openRawResource(R.raw.copyright).bufferedReader()
-					.readText()
-					.parseAsHtml(HtmlCompat.FROM_HTML_SEPARATOR_LINE_BREAK_LIST))
-			movementMethod = LinkMovementMethod.getInstance()
-		}
-	}
-
-	override fun onInflateView(
-		inflater: LayoutInflater,
-		container: ViewGroup?
-	) = FragmentCopyrightBinding.inflate(inflater, container, false)
-
-	override fun onResume() {
-		super.onResume()
-		activity?.setTitle(R.string.about_license)
-	}
-
-	override fun onWindowInsetsChanged(insets: Insets) = Unit
-
-}

app/src/main/java/org/koitharu/kotatsu/settings/backup/AppBackupAgent.kt

@@ -0,0 +1,107 @@
+package org.koitharu.kotatsu.settings.backup
+
+import android.app.backup.BackupAgent
+import android.app.backup.BackupDataInput
+import android.app.backup.BackupDataOutput
+import android.app.backup.FullBackupDataOutput
+import android.os.ParcelFileDescriptor
+import kotlinx.coroutines.NonCancellable
+import kotlinx.coroutines.runBlocking
+import org.koitharu.kotatsu.core.backup.BackupArchive
+import org.koitharu.kotatsu.core.backup.BackupEntry
+import org.koitharu.kotatsu.core.backup.BackupRepository
+import org.koitharu.kotatsu.core.backup.RestoreRepository
+import org.koitharu.kotatsu.core.db.MangaDatabase
+import java.io.*
+
+class AppBackupAgent : BackupAgent() {
+
+	override fun onBackup(
+		oldState: ParcelFileDescriptor?,
+		data: BackupDataOutput?,
+		newState: ParcelFileDescriptor?
+	) = Unit
+
+	override fun onRestore(
+		data: BackupDataInput?,
+		appVersionCode: Int,
+		newState: ParcelFileDescriptor?
+	) = Unit
+
+	override fun onFullBackup(data: FullBackupDataOutput) {
+		super.onFullBackup(data)
+		val file = createBackupFile()
+		try {
+			fullBackupFile(file, data)
+		} finally {
+			file.delete()
+		}
+	}
+
+	override fun onRestoreFile(
+		data: ParcelFileDescriptor,
+		size: Long,
+		destination: File?,
+		type: Int,
+		mode: Long,
+		mtime: Long
+	) {
+		if (destination?.name?.endsWith(".bak") == true) {
+			restoreBackupFile(data.fileDescriptor, size)
+			destination.delete()
+		} else {
+			super.onRestoreFile(data, size, destination, type, mode, mtime)
+		}
+	}
+
+	private fun createBackupFile() = runBlocking {
+		val repository = BackupRepository(MangaDatabase.create(applicationContext))
+		val backup = BackupArchive.createNew(this@AppBackupAgent)
+		backup.put(repository.createIndex())
+		backup.put(repository.dumpHistory())
+		backup.put(repository.dumpCategories())
+		backup.put(repository.dumpFavourites())
+		backup.flush()
+		backup.cleanup()
+		backup.file
+	}
+
+	private fun restoreBackupFile(fd: FileDescriptor, size: Long) {
+		val repository = RestoreRepository(MangaDatabase.create(applicationContext))
+		val tempFile = File.createTempFile("backup_", ".tmp")
+		FileInputStream(fd).use { input ->
+			tempFile.outputStream().use { output ->
+				input.copyLimitedTo(output, size)
+			}
+		}
+		val backup = BackupArchive(tempFile)
+		try {
+			runBlocking {
+				backup.unpack()
+				repository.upsertHistory(backup.getEntry(BackupEntry.HISTORY))
+				repository.upsertCategories(backup.getEntry(BackupEntry.CATEGORIES))
+				repository.upsertFavourites(backup.getEntry(BackupEntry.FAVOURITES))
+			}
+		} finally {
+			runBlocking(NonCancellable) {
+				backup.cleanup()
+			}
+			tempFile.delete()
+		}
+	}
+
+	private fun InputStream.copyLimitedTo(out: OutputStream, limit: Long) {
+		var bytesCopied: Long = 0
+		val buffer = ByteArray(DEFAULT_BUFFER_SIZE.coerceAtMost(limit.toInt()))
+		var bytes = read(buffer)
+		while (bytes >= 0) {
+			out.write(buffer, 0, bytes)
+			bytesCopied += bytes
+			val bytesLeft = (limit - bytesCopied).toInt()
+			if (bytesLeft <= 0) {
+				break
+			}
+			bytes = read(buffer, 0, buffer.size.coerceAtMost(bytesLeft))
+		}
+	}
+}

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

@@ -6,6 +6,7 @@ import androidx.lifecycle.MutableLiveData
 import org.koitharu.kotatsu.base.ui.BaseViewModel
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.parsers.model.MangaSource
+import org.koitharu.kotatsu.parsers.util.mapToSet
 import org.koitharu.kotatsu.parsers.util.toTitleCase
 import org.koitharu.kotatsu.settings.onboard.model.SourceLocale
 import org.koitharu.kotatsu.utils.ext.map

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

@@ -15,6 +15,8 @@ import org.koitharu.kotatsu.base.ui.util.RecyclerViewOwner
 import org.koitharu.kotatsu.databinding.FragmentSettingsSourcesBinding
 import org.koitharu.kotatsu.main.ui.AppBarOwner
 import org.koitharu.kotatsu.settings.SettingsActivity
+import org.koitharu.kotatsu.settings.SettingsHeadersFragment
+import org.koitharu.kotatsu.settings.SourceSettingsFragment
 import org.koitharu.kotatsu.settings.sources.adapter.SourceConfigAdapter
 import org.koitharu.kotatsu.settings.sources.adapter.SourceConfigListener
 import org.koitharu.kotatsu.settings.sources.model.SourceConfigItem
@@ -87,7 +89,9 @@ class SourcesSettingsFragment : BaseFragment<FragmentSettingsSourcesBinding>(),
 	}
 
 	override fun onItemSettingsClick(item: SourceConfigItem.SourceItem) {
-		(activity as? SettingsActivity)?.openMangaSourceSettings(item.source)
+		val fragment = SourceSettingsFragment.newInstance(item.source)
+		(parentFragment as? SettingsHeadersFragment)?.openFragment(fragment)
+			?: (activity as? SettingsActivity)?.openFragment(fragment)
 	}
 
 	override fun onItemEnabledChanged(item: SourceConfigItem.SourceItem, isEnabled: Boolean) {

app/src/main/java/org/koitharu/kotatsu/settings/utils/MultiAutoCompleteTextViewPreference.kt

@@ -0,0 +1,118 @@
+package org.koitharu.kotatsu.settings.utils
+
+import android.content.Context
+import android.util.AttributeSet
+import android.widget.ArrayAdapter
+import android.widget.EditText
+import android.widget.Filter
+import android.widget.MultiAutoCompleteTextView
+import androidx.annotation.AttrRes
+import androidx.annotation.MainThread
+import androidx.annotation.StyleRes
+import androidx.annotation.WorkerThread
+import androidx.preference.EditTextPreference
+import kotlinx.coroutines.runBlocking
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.parsers.util.replaceWith
+
+class MultiAutoCompleteTextViewPreference @JvmOverloads constructor(
+	context: Context,
+	attrs: AttributeSet? = null,
+	@AttrRes defStyleAttr: Int = R.attr.multiAutoCompleteTextViewPreferenceStyle,
+	@StyleRes defStyleRes: Int = R.style.Preference_MultiAutoCompleteTextView,
+) : EditTextPreference(context, attrs, defStyleAttr, defStyleRes) {
+
+	private val autoCompleteBindListener = AutoCompleteBindListener()
+
+	var autoCompleteProvider: AutoCompleteProvider? = null
+
+	init {
+		super.setOnBindEditTextListener(autoCompleteBindListener)
+	}
+
+	override fun setOnBindEditTextListener(onBindEditTextListener: OnBindEditTextListener?) {
+		autoCompleteBindListener.delegate = onBindEditTextListener
+	}
+
+	private inner class AutoCompleteBindListener : OnBindEditTextListener {
+
+		var delegate: OnBindEditTextListener? = null
+
+		override fun onBindEditText(editText: EditText) {
+			delegate?.onBindEditText(editText)
+			if (editText !is MultiAutoCompleteTextView) {
+				return
+			}
+			editText.setTokenizer(MultiAutoCompleteTextView.CommaTokenizer())
+			editText.setAdapter(
+				autoCompleteProvider?.let {
+					CompletionAdapter(editText.context, it, ArrayList())
+				}
+			)
+			editText.threshold = 1
+		}
+	}
+
+	interface AutoCompleteProvider {
+
+		suspend fun getSuggestions(query: String): List<String>
+	}
+
+	class SimpleSummaryProvider(
+		private val emptySummary: CharSequence?,
+	) : SummaryProvider<MultiAutoCompleteTextViewPreference> {
+
+		override fun provideSummary(preference: MultiAutoCompleteTextViewPreference): CharSequence? {
+			return if (preference.text.isNullOrEmpty()) {
+				emptySummary
+			} else {
+				preference.text?.trimEnd(' ', ',')
+			}
+		}
+	}
+
+	private class CompletionAdapter(
+		context: Context,
+		private val completionProvider: AutoCompleteProvider,
+		private val dataset: MutableList<String>,
+	) : ArrayAdapter<String>(context, android.R.layout.simple_dropdown_item_1line, dataset) {
+
+		override fun getFilter(): Filter {
+			return CompletionFilter(this, completionProvider)
+		}
+
+		fun publishResults(results: List<String>) {
+			dataset.replaceWith(results)
+			notifyDataSetChanged()
+		}
+	}
+
+	private class CompletionFilter(
+		private val adapter: CompletionAdapter,
+		private val provider: AutoCompleteProvider,
+	) : Filter() {
+
+		@WorkerThread
+		override fun performFiltering(constraint: CharSequence?): FilterResults {
+			val query = constraint?.toString().orEmpty()
+			val suggestions = runBlocking { provider.getSuggestions(query) }
+			return CompletionResults(suggestions)
+		}
+
+		@MainThread
+		override fun publishResults(constraint: CharSequence?, results: FilterResults) {
+			val completions = (results as CompletionResults).completions
+			adapter.publishResults(completions)
+		}
+
+		private class CompletionResults(
+			val completions: List<String>,
+		) : FilterResults() {
+
+			init {
+				values = completions
+				count = completions.size
+			}
+		}
+	}
+}