Fix coroutines cancellation

2022-09-21 18:35:38 +03:00
parent 73478d6a81
commit 1e75edf262
33 changed files with 217 additions and 130 deletions
--- a/.idea/kotlinc.xml
+++ b/.idea/kotlinc.xml
@@ -3,4 +3,7 @@
  <component name="Kotlin2JvmCompilerArguments">
    <option name="jvmTarget" value="1.8" />
  </component>
+  <component name="KotlinJpsPluginSettings">
+    <option name="version" value="1.6.21" />
+  </component>
 </project>
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -15,8 +15,8 @@ android {
 		applicationId 'org.koitharu.kotatsu'
 		minSdkVersion 21
 		targetSdkVersion 33
-		versionCode 497
-		versionName '4.0-beta1'
+		versionCode 498
+		versionName '4.0-beta2'
 		generatedDensities = []
 		testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"

--- a/app/src/main/java/org/koitharu/kotatsu/base/domain/ReversibleHandle.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/base/domain/ReversibleHandle.kt
@@ -1,9 +1,12 @@
 package org.koitharu.kotatsu.base.domain

 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.NonCancellable
 import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 import org.koitharu.kotatsu.utils.ext.printStackTraceDebug
 import org.koitharu.kotatsu.utils.ext.processLifecycleScope
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable

 fun interface ReversibleHandle {

@@ -11,8 +14,10 @@ fun interface ReversibleHandle {
 }

 fun ReversibleHandle.reverseAsync() = processLifecycleScope.launch(Dispatchers.Default) {
-	runCatching {
-		reverse()
+	runCatchingCancellable {
+		withContext(NonCancellable) {
+			reverse()
+		}
 	}.onFailure {
 		it.printStackTraceDebug()
 	}
@@ -21,4 +26,4 @@ fun ReversibleHandle.reverseAsync() = processLifecycleScope.launch(Dispatchers.D
 operator fun ReversibleHandle.plus(other: ReversibleHandle) = ReversibleHandle {
 	this.reverse()
 	other.reverse()
-}
+}
--- a/app/src/main/java/org/koitharu/kotatsu/core/backup/BackupRepository.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/core/backup/BackupRepository.kt
@@ -1,13 +1,14 @@
 package org.koitharu.kotatsu.core.backup

 import androidx.room.withTransaction
-import javax.inject.Inject
 import org.json.JSONArray
 import org.json.JSONObject
 import org.koitharu.kotatsu.BuildConfig
 import org.koitharu.kotatsu.core.db.MangaDatabase
 import org.koitharu.kotatsu.parsers.util.json.JSONIterator
 import org.koitharu.kotatsu.parsers.util.json.mapJSON
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable
+import javax.inject.Inject

 private const val PAGE_SIZE = 10

@@ -85,7 +86,7 @@ class BackupRepository @Inject constructor(private val db: MangaDatabase) {
 				JsonDeserializer(it).toTagEntity()
 			}
 			val history = JsonDeserializer(item).toHistoryEntity()
-			result += runCatching {
+			result += runCatchingCancellable {
 				db.withTransaction {
 					db.tagsDao.upsert(tags)
 					db.mangaDao.upsert(manga, tags)
@@ -100,7 +101,7 @@ class BackupRepository @Inject constructor(private val db: MangaDatabase) {
 		val result = CompositeResult()
 		for (item in entry.data.JSONIterator()) {
 			val category = JsonDeserializer(item).toFavouriteCategoryEntity()
-			result += runCatching {
+			result += runCatchingCancellable {
 				db.favouriteCategoriesDao.upsert(category)
 			}
 		}
@@ -116,7 +117,7 @@ class BackupRepository @Inject constructor(private val db: MangaDatabase) {
 				JsonDeserializer(it).toTagEntity()
 			}
 			val favourite = JsonDeserializer(item).toFavouriteEntity()
-			result += runCatching {
+			result += runCatchingCancellable {
 				db.withTransaction {
 					db.tagsDao.upsert(tags)
 					db.mangaDao.upsert(manga, tags)
--- a/app/src/main/java/org/koitharu/kotatsu/core/github/AppUpdateRepository.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/core/github/AppUpdateRepository.kt
@@ -4,13 +4,6 @@ import android.annotation.SuppressLint
 import android.content.Context
 import android.content.pm.PackageManager
 import dagger.hilt.android.qualifiers.ApplicationContext
-import java.io.ByteArrayInputStream
-import java.io.InputStream
-import java.security.MessageDigest
-import java.security.cert.CertificateFactory
-import java.security.cert.X509Certificate
-import javax.inject.Inject
-import javax.inject.Singleton
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.asStateFlow
@@ -24,6 +17,14 @@ import org.koitharu.kotatsu.parsers.util.json.mapJSONNotNull
 import org.koitharu.kotatsu.parsers.util.parseJsonArray
 import org.koitharu.kotatsu.utils.ext.asArrayList
 import org.koitharu.kotatsu.utils.ext.printStackTraceDebug
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable
+import java.io.ByteArrayInputStream
+import java.io.InputStream
+import java.security.MessageDigest
+import java.security.cert.CertificateFactory
+import java.security.cert.X509Certificate
+import javax.inject.Inject
+import javax.inject.Singleton

 private const val CERT_SHA1 = "2C:19:C7:E8:07:61:2B:8E:94:51:1B:FD:72:67:07:64:5D:C2:58:AE"

@@ -59,7 +60,7 @@ class AppUpdateRepository @Inject constructor(
 		if (!isUpdateSupported()) {
 			return@withContext null
 		}
-		runCatching {
+		runCatchingCancellable {
 			val currentVersion = VersionId(BuildConfig.VERSION_NAME)
 			val available = getAvailableVersions().asArrayList()
 			available.sortBy { it.versionId }
--- a/app/src/main/java/org/koitharu/kotatsu/core/os/ShortcutsUpdater.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/core/os/ShortcutsUpdater.kt
@@ -17,8 +17,6 @@ import coil.request.ImageRequest
 import coil.size.Precision
 import coil.size.Scale
 import dagger.hilt.android.qualifiers.ApplicationContext
-import javax.inject.Inject
-import javax.inject.Singleton
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.launch
@@ -32,6 +30,9 @@ import org.koitharu.kotatsu.reader.ui.ReaderActivity
 import org.koitharu.kotatsu.utils.ext.printStackTraceDebug
 import org.koitharu.kotatsu.utils.ext.processLifecycleScope
 import org.koitharu.kotatsu.utils.ext.requireBitmap
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable
+import javax.inject.Inject
+import javax.inject.Singleton

@Singleton
 class ShortcutsUpdater @Inject constructor(
@@ -92,7 +93,7 @@ class ShortcutsUpdater @Inject constructor(
 	}

 	@RequiresApi(Build.VERSION_CODES.N_MR1)
-	private suspend fun updateShortcutsImpl() = runCatching {
+	private suspend fun updateShortcutsImpl() = runCatchingCancellable {
 		val manager = context.getSystemService(Context.SHORTCUT_SERVICE) as ShortcutManager
 		val shortcuts = historyRepository.getList(0, manager.maxShortcutCountPerActivity)
 			.filter { x -> x.title.isNotEmpty() }
@@ -112,7 +113,7 @@ class ShortcutsUpdater @Inject constructor(
 	}

 	private suspend fun buildShortcutInfo(manga: Manga): ShortcutInfoCompat.Builder {
-		val icon = runCatching {
+		val icon = runCatchingCancellable {
 			coil.execute(
 				ImageRequest.Builder(context)
 					.data(manga.coverUrl)
--- a/app/src/main/java/org/koitharu/kotatsu/details/ui/DetailsViewModel.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/details/ui/DetailsViewModel.kt
@@ -45,6 +45,7 @@ import org.koitharu.kotatsu.utils.SingleLiveEvent
 import org.koitharu.kotatsu.utils.asFlowLiveData
 import org.koitharu.kotatsu.utils.ext.asLiveDataDistinct
 import org.koitharu.kotatsu.utils.ext.printStackTraceDebug
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable

 class DetailsViewModel @AssistedInject constructor(
 	@Assisted intent: MangaIntent,
@@ -189,7 +190,7 @@ class DetailsViewModel @AssistedInject constructor(
 			checkNotNull(manga) { "Cannot find saved manga for ${m.title}" }
 			val original = localMangaRepository.getRemoteManga(manga)
 			localMangaRepository.delete(manga) || throw IOException("Unable to delete file")
-			runCatching {
+			runCatchingCancellable {
 				historyRepository.deleteOrSwap(manga, original)
 			}
 			onMangaRemoved.postCall(manga)
@@ -228,7 +229,7 @@ class DetailsViewModel @AssistedInject constructor(
 			reload()
 		} else {
 			viewModelScope.launch(Dispatchers.Default) {
-				runCatching {
+				runCatchingCancellable {
 					localMangaRepository.getDetails(downloadedManga)
 				}.onSuccess {
 					delegate.relatedManga.value = it
--- a/app/src/main/java/org/koitharu/kotatsu/details/ui/MangaDetailsDelegate.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/details/ui/MangaDetailsDelegate.kt
@@ -17,6 +17,7 @@ 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.utils.ext.printStackTraceDebug
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable

 class MangaDetailsDelegate(
 	private val intent: MangaIntent,
@@ -45,9 +46,9 @@ class MangaDetailsDelegate(
 		val hist = historyRepository.getOne(manga)
 		selectedBranch.value = manga.getPreferredBranch(hist)
 		mangaData.value = manga
-		relatedManga.value = runCatching {
+		relatedManga.value = runCatchingCancellable {
 			if (manga.source == MangaSource.LOCAL) {
-				val m = localMangaRepository.getRemoteManga(manga) ?: return@runCatching null
+				val m = localMangaRepository.getRemoteManga(manga) ?: return@runCatchingCancellable null
 				mangaRepositoryFactory.create(m.source).getDetails(m)
 			} else {
 				localMangaRepository.findSavedManga(manga)
--- a/app/src/main/java/org/koitharu/kotatsu/download/domain/DownloadManager.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/download/domain/DownloadManager.kt
@@ -9,11 +9,18 @@ import dagger.assisted.Assisted
 import dagger.assisted.AssistedFactory
 import dagger.assisted.AssistedInject
 import dagger.hilt.android.qualifiers.ApplicationContext
-import java.io.File
-import kotlinx.coroutines.*
+import kotlinx.coroutines.CancellationException
+import kotlinx.coroutines.CoroutineExceptionHandler
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.NonCancellable
+import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.runInterruptible
 import kotlinx.coroutines.sync.Semaphore
 import kotlinx.coroutines.sync.withPermit
+import kotlinx.coroutines.withContext
 import okhttp3.OkHttpClient
 import okhttp3.Request
 import okhttp3.internal.closeQuietly
@@ -32,7 +39,9 @@ import org.koitharu.kotatsu.parsers.util.await
 import org.koitharu.kotatsu.utils.ext.deleteAwait
 import org.koitharu.kotatsu.utils.ext.printStackTraceDebug
 import org.koitharu.kotatsu.utils.ext.referer
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable
 import org.koitharu.kotatsu.utils.progress.PausingProgressJob
+import java.io.File

 private const val MAX_FAILSAFE_ATTEMPTS = 2
 private const val DOWNLOAD_ERROR_DELAY = 500L
@@ -231,7 +240,7 @@ class DownloadManager @AssistedInject constructor(
 			)
 		}

-	private suspend fun loadCover(manga: Manga) = runCatching {
+	private suspend fun loadCover(manga: Manga) = runCatchingCancellable {
 		imageLoader.execute(
 			ImageRequest.Builder(context)
 				.data(manga.coverUrl)
--- a/app/src/main/java/org/koitharu/kotatsu/favourites/ui/list/FavouritesListViewModel.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/favourites/ui/list/FavouritesListViewModel.kt
@@ -28,6 +28,7 @@ import org.koitharu.kotatsu.parsers.model.SortOrder
 import org.koitharu.kotatsu.tracker.domain.TrackingRepository
 import org.koitharu.kotatsu.utils.asFlowLiveData
 import org.koitharu.kotatsu.utils.ext.asLiveDataDistinct
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable

 class FavouritesListViewModel @AssistedInject constructor(
 	@Assisted private val categoryId: Long,
@@ -69,6 +70,7 @@ class FavouritesListViewModel @AssistedInject constructor(
 					actionStringRes = 0,
 				),
 			)
+
 			else -> list.toUi(mode, this)
 		}
 	}.catch {
@@ -79,7 +81,7 @@ class FavouritesListViewModel @AssistedInject constructor(
 		if (categoryId != NO_ID) {
 			launchJob {
 				categoryName = withContext(Dispatchers.Default) {
-					runCatching {
+					runCatchingCancellable {
 						repository.getCategory(categoryId).title
 					}.getOrNull()
 				}
--- a/app/src/main/java/org/koitharu/kotatsu/list/ui/filter/FilterCoordinator.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/list/ui/filter/FilterCoordinator.kt
@@ -6,15 +6,22 @@ import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.CoroutineStart
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.async
-import kotlinx.coroutines.flow.*
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.combine
+import kotlinx.coroutines.flow.flow
+import kotlinx.coroutines.flow.update
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.base.domain.MangaDataRepository
 import org.koitharu.kotatsu.core.parser.RemoteMangaRepository
 import org.koitharu.kotatsu.parsers.model.MangaTag
 import org.koitharu.kotatsu.utils.ext.asLiveDataDistinct
 import org.koitharu.kotatsu.utils.ext.printStackTraceDebug
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable
 import java.text.Collator
-import java.util.*
+import java.util.Locale
+import java.util.TreeSet

 class FilterCoordinator(
 	private val repository: RemoteMangaRepository,
@@ -153,7 +160,7 @@ class FilterCoordinator(
 	}

 	private fun loadTagsAsync() = coroutineScope.async(Dispatchers.Default, CoroutineStart.LAZY) {
-		runCatching {
+		runCatchingCancellable {
 			repository.getTags()
 		}.onFailure { error ->
 			error.printStackTraceDebug()
@@ -204,4 +211,4 @@ class FilterCoordinator(
 			return collator?.compare(t1, t2) ?: compareValues(t1, t2)
 		}
 	}
-}
+}
--- a/app/src/main/java/org/koitharu/kotatsu/local/domain/LocalMangaRepository.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/local/domain/LocalMangaRepository.kt
@@ -7,28 +7,40 @@ import androidx.annotation.WorkerThread
 import androidx.collection.ArraySet
 import androidx.core.net.toFile
 import androidx.core.net.toUri
-import java.io.File
-import java.util.*
-import java.util.zip.ZipEntry
-import java.util.zip.ZipFile
-import javax.inject.Inject
-import javax.inject.Singleton
-import kotlin.coroutines.CoroutineContext
-import kotlinx.coroutines.*
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Deferred
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.async
+import kotlinx.coroutines.awaitAll
+import kotlinx.coroutines.coroutineScope
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.filterNot
+import kotlinx.coroutines.runInterruptible
 import org.koitharu.kotatsu.core.parser.MangaRepository
 import org.koitharu.kotatsu.local.data.CbzFilter
 import org.koitharu.kotatsu.local.data.LocalStorageManager
 import org.koitharu.kotatsu.local.data.MangaIndex
 import org.koitharu.kotatsu.local.data.TempFileFilter
-import org.koitharu.kotatsu.parsers.model.*
+import org.koitharu.kotatsu.parsers.model.Manga
+import org.koitharu.kotatsu.parsers.model.MangaChapter
+import org.koitharu.kotatsu.parsers.model.MangaPage
+import org.koitharu.kotatsu.parsers.model.MangaSource
+import org.koitharu.kotatsu.parsers.model.MangaTag
+import org.koitharu.kotatsu.parsers.model.SortOrder
 import org.koitharu.kotatsu.parsers.util.toCamelCase
 import org.koitharu.kotatsu.utils.AlphanumComparator
 import org.koitharu.kotatsu.utils.CompositeMutex
 import org.koitharu.kotatsu.utils.ext.deleteAwait
 import org.koitharu.kotatsu.utils.ext.longHashCode
 import org.koitharu.kotatsu.utils.ext.readText
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable
+import java.io.File
+import java.util.Enumeration
+import java.util.zip.ZipEntry
+import java.util.zip.ZipFile
+import javax.inject.Inject
+import javax.inject.Singleton
+import kotlin.coroutines.CoroutineContext

 private const val MAX_PARALLELISM = 4

@@ -73,6 +85,7 @@ class LocalMangaRepository @Inject constructor(private val storageManager: Local
 		manga.source != MangaSource.LOCAL -> requireNotNull(findSavedManga(manga)) {
 			"Manga is not local or saved"
 		}
+
 		else -> getFromFile(Uri.parse(manga.url).toFile())
 	}

@@ -236,7 +249,7 @@ class LocalMangaRepository @Inject constructor(private val storageManager: Local
 		context: CoroutineContext,
 	): Deferred<LocalManga?> = async(context) {
 		runInterruptible {
-			runCatching { LocalManga(getFromFile(file), file) }.getOrNull()
+			runCatchingCancellable { LocalManga(getFromFile(file), file) }.getOrNull()
 		}
 	}

--- a/app/src/main/java/org/koitharu/kotatsu/local/ui/LocalListViewModel.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/local/ui/LocalListViewModel.kt
@@ -29,6 +29,7 @@ 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.printStackTraceDebug
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable

@HiltViewModel
 class LocalListViewModel @Inject constructor(
@@ -63,6 +64,7 @@ class LocalListViewModel @Inject constructor(
 					actionStringRes = R.string._import,
 				),
 			)
+
 			else -> buildList(list.size + 1) {
 				add(createHeader(list, tags, order))
 				list.toUi(this, mode, this@LocalListViewModel)
@@ -104,7 +106,7 @@ class LocalListViewModel @Inject constructor(
 				for (manga in itemsToRemove) {
 					val original = repository.getRemoteManga(manga)
 					repository.delete(manga) || throw IOException("Unable to delete file")
-					runCatching {
+					runCatchingCancellable {
 						historyRepository.deleteOrSwap(manga, original)
 					}
 					mangaList.update { list ->
@@ -120,6 +122,8 @@ class LocalListViewModel @Inject constructor(
 		try {
 			listError.value = null
 			mangaList.value = repository.getList(0, selectedTags.value, sortOrder.value)
+		} catch (e: CancellationException) {
+			throw e
 		} catch (e: Throwable) {
 			listError.value = e
 		}
@@ -128,7 +132,7 @@ class LocalListViewModel @Inject constructor(
 	private fun cleanup() {
 		if (!DownloadService.isRunning && !ImportService.isRunning && !LocalChaptersRemoveService.isRunning) {
 			viewModelScope.launch {
-				runCatching {
+				runCatchingCancellable {
 					repository.cleanup()
 				}.onFailure { error ->
 					error.printStackTraceDebug()
--- a/app/src/main/java/org/koitharu/kotatsu/reader/ui/ReaderViewModel.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/reader/ui/ReaderViewModel.kt
@@ -38,6 +38,7 @@ import org.koitharu.kotatsu.utils.asFlowLiveData
 import org.koitharu.kotatsu.utils.ext.printStackTraceDebug
 import org.koitharu.kotatsu.utils.ext.processLifecycleScope
 import org.koitharu.kotatsu.utils.ext.requireValue
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable

 private const val BOUNDS_PAGE_OFFSET = 2
 private const val PREFETCH_LIMIT = 10
@@ -326,7 +327,7 @@ class ReaderViewModel @AssistedInject constructor(
 			?: manga.chapters?.randomOrNull()
 			?: error("There are no chapters in this manga")
 		val pages = repo.getPages(chapter)
-		return runCatching {
+		return runCatchingCancellable {
 			val isWebtoon = dataRepository.determineMangaIsWebtoon(repo, pages)
 			if (isWebtoon) ReaderMode.WEBTOON else defaultMode
 		}.onSuccess {
@@ -381,7 +382,7 @@ class ReaderViewModel @AssistedInject constructor(
 */
 private fun HistoryRepository.saveStateAsync(manga: Manga, state: ReaderState, percent: Float): Job {
 	return processLifecycleScope.launch(Dispatchers.Default) {
-		runCatching {
+		runCatchingCancellable {
 			addOrUpdate(
 				manga = manga,
 				chapterId = state.chapterId,
--- a/app/src/main/java/org/koitharu/kotatsu/reader/ui/pager/PageHolderDelegate.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/reader/ui/pager/PageHolderDelegate.kt
@@ -4,17 +4,23 @@ import android.net.Uri
 import androidx.core.net.toUri
 import androidx.lifecycle.Observer
 import com.davemorrissey.labs.subscaleview.DefaultOnImageEventListener
-import java.io.File
-import java.io.IOException
-import kotlinx.coroutines.*
+import kotlinx.coroutines.CancellationException
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.cancelAndJoin
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.debounce
 import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.onEach
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.plus
 import org.koitharu.kotatsu.core.exceptions.resolve.ExceptionResolver
 import org.koitharu.kotatsu.parsers.model.MangaPage
 import org.koitharu.kotatsu.reader.domain.PageLoader
 import org.koitharu.kotatsu.reader.ui.config.ReaderSettings
+import java.io.File
+import java.io.IOException

 class PageHolderDelegate(
 	private val loader: PageLoader,
@@ -102,6 +108,8 @@ class PageHolderDelegate(
 				loader.convertInPlace(file)
 				state = State.CONVERTED
 				callback.onImageReady(file.toUri())
+			} catch (ce: CancellationException) {
+				throw ce
 			} catch (e2: Throwable) {
 				e.addSuppressed(e2)
 				state = State.ERROR
--- a/app/src/main/java/org/koitharu/kotatsu/reader/ui/thumbnails/adapter/PageThumbnailAD.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/reader/ui/thumbnails/adapter/PageThumbnailAD.kt
@@ -17,6 +17,7 @@ import org.koitharu.kotatsu.reader.ui.thumbnails.PageThumbnail
 import org.koitharu.kotatsu.utils.ext.decodeRegion
 import org.koitharu.kotatsu.utils.ext.isLowRamDevice
 import org.koitharu.kotatsu.utils.ext.referer
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable
 import org.koitharu.kotatsu.utils.ext.setTextColorAttr

 fun pageThumbnailAD(
@@ -72,7 +73,7 @@ fun pageThumbnailAD(
 			text = (item.number).toString()
 		}
 		job = scope.launch {
-			val drawable = runCatching {
+			val drawable = runCatchingCancellable {
 				loadPageThumbnail(item)
 			}.getOrNull()
 			binding.imageViewThumb.setImageDrawable(drawable)
--- a/app/src/main/java/org/koitharu/kotatsu/remotelist/ui/RemoteListViewModel.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/remotelist/ui/RemoteListViewModel.kt
@@ -5,11 +5,16 @@ import androidx.lifecycle.viewModelScope
 import dagger.assisted.Assisted
 import dagger.assisted.AssistedFactory
 import dagger.assisted.AssistedInject
-import java.util.*
+import kotlinx.coroutines.CancellationException
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.cancelAndJoin
-import kotlinx.coroutines.flow.*
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.catch
+import kotlinx.coroutines.flow.combine
+import kotlinx.coroutines.flow.debounce
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onEach
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.base.domain.MangaDataRepository
 import org.koitharu.kotatsu.base.ui.widgets.ChipsView
@@ -21,13 +26,20 @@ import org.koitharu.kotatsu.list.ui.filter.FilterCoordinator
 import org.koitharu.kotatsu.list.ui.filter.FilterItem
 import org.koitharu.kotatsu.list.ui.filter.FilterState
 import org.koitharu.kotatsu.list.ui.filter.OnFilterChangedListener
-import org.koitharu.kotatsu.list.ui.model.*
+import org.koitharu.kotatsu.list.ui.model.EmptyState
+import org.koitharu.kotatsu.list.ui.model.ListHeader2
+import org.koitharu.kotatsu.list.ui.model.LoadingFooter
+import org.koitharu.kotatsu.list.ui.model.LoadingState
+import org.koitharu.kotatsu.list.ui.model.toErrorFooter
+import org.koitharu.kotatsu.list.ui.model.toErrorState
+import org.koitharu.kotatsu.list.ui.model.toUi
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.model.MangaTag
 import org.koitharu.kotatsu.search.domain.MangaSearchRepository
 import org.koitharu.kotatsu.utils.ext.asLiveDataDistinct
 import org.koitharu.kotatsu.utils.ext.printStackTraceDebug
+import java.util.LinkedList

 private const val FILTER_MIN_INTERVAL = 250L

@@ -138,6 +150,8 @@ class RemoteListViewModel @AssistedInject constructor(
 					mangaList.value = mangaList.value?.plus(list) ?: list
 				}
 				hasNextPage.value = list.isNotEmpty()
+			} catch (e: CancellationException) {
+				throw e
 			} catch (e: Throwable) {
 				e.printStackTraceDebug()
 				listError.value = e
--- a/app/src/main/java/org/koitharu/kotatsu/scrobbling/domain/Scrobbler.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/scrobbling/domain/Scrobbler.kt
@@ -3,15 +3,20 @@ package org.koitharu.kotatsu.scrobbling.domain
 import androidx.collection.LongSparseArray
 import androidx.collection.getOrElse
 import androidx.core.text.parseAsHtml
-import java.util.*
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.map
 import org.koitharu.kotatsu.core.db.MangaDatabase
 import org.koitharu.kotatsu.parsers.model.MangaChapter
 import org.koitharu.kotatsu.scrobbling.data.ScrobblingEntity
-import org.koitharu.kotatsu.scrobbling.domain.model.*
+import org.koitharu.kotatsu.scrobbling.domain.model.ScrobblerManga
+import org.koitharu.kotatsu.scrobbling.domain.model.ScrobblerMangaInfo
+import org.koitharu.kotatsu.scrobbling.domain.model.ScrobblerService
+import org.koitharu.kotatsu.scrobbling.domain.model.ScrobblingInfo
+import org.koitharu.kotatsu.scrobbling.domain.model.ScrobblingStatus
 import org.koitharu.kotatsu.utils.ext.findKeyByValue
 import org.koitharu.kotatsu.utils.ext.printStackTraceDebug
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable
+import java.util.EnumMap

 abstract class Scrobbler(
 	protected val db: MangaDatabase,
@@ -47,7 +52,7 @@ abstract class Scrobbler(

 	private suspend fun ScrobblingEntity.toScrobblingInfo(mangaId: Long): ScrobblingInfo? {
 		val mangaInfo = infoCache.getOrElse(targetId) {
-			runCatching {
+			runCatchingCancellable {
 				getMangaInfo(targetId)
 			}.onFailure {
 				it.printStackTraceDebug()
@@ -72,9 +77,9 @@ abstract class Scrobbler(
 }

 suspend fun Scrobbler.tryScrobble(mangaId: Long, chapter: MangaChapter): Boolean {
-	return runCatching {
+	return runCatchingCancellable {
 		scrobble(mangaId, chapter)
 	}.onFailure {
 		it.printStackTraceDebug()
 	}.isSuccess
-}
+}
--- a/app/src/main/java/org/koitharu/kotatsu/search/domain/MangaSearchRepository.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/search/domain/MangaSearchRepository.kt
@@ -21,6 +21,7 @@ import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.model.MangaTag
 import org.koitharu.kotatsu.parsers.util.levenshteinDistance
 import org.koitharu.kotatsu.search.ui.MangaSuggestionsProvider
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable

 class MangaSearchRepository @Inject constructor(
 	private val settings: AppSettings,
@@ -33,7 +34,7 @@ class MangaSearchRepository @Inject constructor(
 	fun globalSearch(query: String, concurrency: Int = DEFAULT_CONCURRENCY): Flow<Manga> =
 		settings.getMangaSources(includeHidden = false).asFlow()
 			.flatMapMerge(concurrency) { source ->
-				runCatching {
+				runCatchingCancellable {
 					mangaRepositoryFactory.create(source).getList(
 						offset = 0,
 						query = query,
--- a/app/src/main/java/org/koitharu/kotatsu/search/ui/SearchViewModel.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/search/ui/SearchViewModel.kt
@@ -4,6 +4,7 @@ import androidx.lifecycle.viewModelScope
 import dagger.assisted.Assisted
 import dagger.assisted.AssistedFactory
 import dagger.assisted.AssistedInject
+import kotlinx.coroutines.CancellationException
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.flow.MutableStateFlow
@@ -12,7 +13,13 @@ import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.parser.MangaRepository
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.list.ui.MangaListViewModel
-import org.koitharu.kotatsu.list.ui.model.*
+import org.koitharu.kotatsu.list.ui.model.EmptyState
+import org.koitharu.kotatsu.list.ui.model.ListModel
+import org.koitharu.kotatsu.list.ui.model.LoadingFooter
+import org.koitharu.kotatsu.list.ui.model.LoadingState
+import org.koitharu.kotatsu.list.ui.model.toErrorFooter
+import org.koitharu.kotatsu.list.ui.model.toErrorState
+import org.koitharu.kotatsu.list.ui.model.toUi
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.utils.ext.asLiveDataDistinct
@@ -47,6 +54,7 @@ class SearchViewModel @AssistedInject constructor(
 					actionStringRes = 0,
 				),
 			)
+
 			else -> {
 				val result = ArrayList<ListModel>(list.size + 1)
 				list.toUi(result, mode)
@@ -94,6 +102,8 @@ class SearchViewModel @AssistedInject constructor(
 					mangaList.value = mangaList.value?.plus(list) ?: list
 				}
 				hasNextPage.value = list.isNotEmpty()
+			} catch (e: CancellationException) {
+				throw e
 			} catch (e: Throwable) {
 				listError.value = e
 			}
--- a/app/src/main/java/org/koitharu/kotatsu/search/ui/multi/MultiSearchViewModel.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/search/ui/multi/MultiSearchViewModel.kt
@@ -20,6 +20,7 @@ import org.koitharu.kotatsu.list.ui.model.*
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.utils.ext.asLiveDataDistinct
 import org.koitharu.kotatsu.utils.ext.printStackTraceDebug
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable

 private const val MAX_PARALLELISM = 4
 private const val MIN_HAS_MORE_ITEMS = 8
@@ -54,6 +55,7 @@ class MultiSearchViewModel @AssistedInject constructor(
 					)
 				},
 			)
+
 			loading -> list + LoadingFooter
 			else -> list
 		}
@@ -85,6 +87,8 @@ class MultiSearchViewModel @AssistedInject constructor(
 				loadingData.value = true
 				query.postValue(q)
 				searchImpl(q)
+			} catch (e: CancellationException) {
+				throw e
 			} catch (e: Throwable) {
 				listError.value = e
 			} finally {
@@ -98,7 +102,7 @@ class MultiSearchViewModel @AssistedInject constructor(
 		val dispatcher = Dispatchers.Default.limitedParallelism(MAX_PARALLELISM)
 		val deferredList = sources.map { source ->
 			async(dispatcher) {
-				runCatching {
+				runCatchingCancellable {
 					val list = mangaRepositoryFactory.create(source).getList(offset = 0, query = q)
 						.toUi(ListMode.GRID)
 					if (list.isNotEmpty()) {
--- a/app/src/main/java/org/koitharu/kotatsu/settings/HistorySettingsFragment.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/settings/HistorySettingsFragment.kt
@@ -8,7 +8,7 @@ import androidx.preference.Preference
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import com.google.android.material.snackbar.Snackbar
 import dagger.hilt.android.AndroidEntryPoint
-import javax.inject.Inject
+import kotlinx.coroutines.CancellationException
 import kotlinx.coroutines.launch
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.base.ui.BasePreferenceFragment
@@ -23,6 +23,7 @@ import org.koitharu.kotatsu.tracker.domain.TrackingRepository
 import org.koitharu.kotatsu.utils.FileSize
 import org.koitharu.kotatsu.utils.ext.getDisplayMessage
 import org.koitharu.kotatsu.utils.ext.viewLifecycleScope
+import javax.inject.Inject

@AndroidEntryPoint
 class HistorySettingsFragment : BasePreferenceFragment(R.string.history_and_cache) {
@@ -82,18 +83,22 @@ class HistorySettingsFragment : BasePreferenceFragment(R.string.history_and_cach
 				clearCache(preference, CacheDir.PAGES)
 				true
 			}
+
 			AppSettings.KEY_THUMBS_CACHE_CLEAR -> {
 				clearCache(preference, CacheDir.THUMBS)
 				true
 			}
+
 			AppSettings.KEY_COOKIES_CLEAR -> {
 				clearCookies()
 				true
 			}
+
 			AppSettings.KEY_SEARCH_HISTORY_CLEAR -> {
 				clearSearchHistory(preference)
 				true
 			}
+
 			AppSettings.KEY_UPDATES_FEED_CLEAR -> {
 				viewLifecycleScope.launch {
 					trackerRepo.clearLogs()
@@ -107,6 +112,7 @@ class HistorySettingsFragment : BasePreferenceFragment(R.string.history_and_cach
 				}
 				true
 			}
+
 			AppSettings.KEY_SHIKIMORI -> {
 				if (!shikimoriRepository.isAuthorized) {
 					launchShikimoriAuth()
@@ -115,6 +121,7 @@ class HistorySettingsFragment : BasePreferenceFragment(R.string.history_and_cach
 					super.onPreferenceTreeClick(preference)
 				}
 			}
+
 			else -> super.onPreferenceTreeClick(preference)
 		}
 	}
@@ -127,6 +134,8 @@ class HistorySettingsFragment : BasePreferenceFragment(R.string.history_and_cach
 				storageManager.clearCache(cache)
 				val size = storageManager.computeCacheSize(cache)
 				preference.summary = FileSize.BYTES.format(ctx, size)
+			} catch (e: CancellationException) {
+				throw e
 			} catch (e: Exception) {
 				preference.summary = e.getDisplayMessage(ctx.resources)
 			} finally {
--- a/app/src/main/java/org/koitharu/kotatsu/settings/SourceSettingsFragment.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/settings/SourceSettingsFragment.kt
@@ -7,7 +7,6 @@ import androidx.lifecycle.lifecycleScope
 import androidx.preference.Preference
 import com.google.android.material.snackbar.Snackbar
 import dagger.hilt.android.AndroidEntryPoint
-import javax.inject.Inject
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.ensureActive
 import kotlinx.coroutines.launch
@@ -20,7 +19,14 @@ import org.koitharu.kotatsu.core.parser.RemoteMangaRepository
 import org.koitharu.kotatsu.parsers.exception.AuthRequiredException
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.settings.sources.auth.SourceAuthActivity
-import org.koitharu.kotatsu.utils.ext.*
+import org.koitharu.kotatsu.utils.ext.awaitViewLifecycle
+import org.koitharu.kotatsu.utils.ext.getDisplayMessage
+import org.koitharu.kotatsu.utils.ext.printStackTraceDebug
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable
+import org.koitharu.kotatsu.utils.ext.serializableArgument
+import org.koitharu.kotatsu.utils.ext.viewLifecycleScope
+import org.koitharu.kotatsu.utils.ext.withArgs
+import javax.inject.Inject

@AndroidEntryPoint
 class SourceSettingsFragment : BasePreferenceFragment(0) {
@@ -66,12 +72,13 @@ class SourceSettingsFragment : BasePreferenceFragment(0) {
 				startActivity(SourceAuthActivity.newIntent(preference.context, source))
 				true
 			}
+
 			else -> super.onPreferenceTreeClick(preference)
 		}
 	}

 	private fun loadUsername(owner: LifecycleOwner, preference: Preference) = owner.lifecycleScope.launch {
-		runCatching {
+		runCatchingCancellable {
 			preference.summary = null
 			withContext(Dispatchers.Default) {
 				requireNotNull(repository?.getAuthProvider()?.getUsername())
@@ -91,6 +98,7 @@ class SourceSettingsFragment : BasePreferenceFragment(0) {
 					).setAction(ExceptionResolver.getResolveStringId(error)) { resolveError(error) }
 						.show()
 				}
+
 				else -> preference.summary = error.getDisplayMessage(preference.context.resources)
 			}
 			error.printStackTraceDebug()
--- a/app/src/main/java/org/koitharu/kotatsu/settings/backup/BackupDialogFragment.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/settings/backup/BackupDialogFragment.kt
@@ -11,13 +11,13 @@ import androidx.core.view.isVisible
 import androidx.fragment.app.viewModels
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import dagger.hilt.android.AndroidEntryPoint
-import java.io.File
-import java.io.FileOutputStream
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.base.ui.AlertDialogFragment
 import org.koitharu.kotatsu.databinding.DialogProgressBinding
 import org.koitharu.kotatsu.utils.ext.getDisplayMessage
 import org.koitharu.kotatsu.utils.progress.Progress
+import java.io.File
+import java.io.FileOutputStream

@AndroidEntryPoint
 class BackupDialogFragment : AlertDialogFragment<DialogProgressBinding>() {
@@ -91,6 +91,8 @@ class BackupDialogFragment : AlertDialogFragment<DialogProgressBinding>() {
 			}
 			Toast.makeText(requireContext(), R.string.backup_saved, Toast.LENGTH_LONG).show()
 			dismiss()
+		} catch (e: InterruptedException) {
+			throw e
 		} catch (e: Exception) {
 			onError(e)
 		}
--- a/app/src/main/java/org/koitharu/kotatsu/suggestions/ui/SuggestionsWorker.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/suggestions/ui/SuggestionsWorker.kt
@@ -26,6 +26,7 @@ import org.koitharu.kotatsu.suggestions.domain.MangaSuggestion
 import org.koitharu.kotatsu.suggestions.domain.SuggestionRepository
 import org.koitharu.kotatsu.utils.ext.asArrayList
 import org.koitharu.kotatsu.utils.ext.printStackTraceDebug
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable
 import org.koitharu.kotatsu.utils.ext.trySetForeground
 import java.util.concurrent.TimeUnit
 import kotlin.math.pow
@@ -137,7 +138,7 @@ class SuggestionsWorker @AssistedInject constructor(
 		return (weight / maxWeight).pow(2.0).toFloat()
 	}

-	private suspend fun MangaRepository.getListSafe(tag: MangaTag) = runCatching {
+	private suspend fun MangaRepository.getListSafe(tag: MangaTag) = runCatchingCancellable {
 		getList(offset = 0, sortOrder = SortOrder.UPDATED, tags = setOf(tag))
 	}.onFailure { error ->
 		error.printStackTraceDebug()
--- a/app/src/main/java/org/koitharu/kotatsu/sync/data/SyncAuthenticator.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/sync/data/SyncAuthenticator.kt
@@ -35,4 +35,4 @@ class SyncAuthenticator(
 			)
 		}
 	}.getOrNull()
-}
+}
--- a/app/src/main/java/org/koitharu/kotatsu/sync/ui/favourites/FavouritesSyncAdapter.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/sync/ui/favourites/FavouritesSyncAdapter.kt
@@ -9,6 +9,7 @@ import android.os.Bundle
 import org.koitharu.kotatsu.sync.domain.SyncController
 import org.koitharu.kotatsu.sync.domain.SyncHelper
 import org.koitharu.kotatsu.utils.ext.onError
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable

 class FavouritesSyncAdapter(context: Context) : AbstractThreadedSyncAdapter(context, true) {

@@ -20,9 +21,9 @@ class FavouritesSyncAdapter(context: Context) : AbstractThreadedSyncAdapter(cont
 		syncResult: SyncResult,
 	) {
 		val syncHelper = SyncHelper(context, account, provider)
-		runCatching {
+		runCatchingCancellable {
 			syncHelper.syncFavourites(syncResult)
 			SyncController(context).setLastSync(account, authority, System.currentTimeMillis())
 		}.onFailure(syncResult::onError)
 	}
-}
+}
--- a/app/src/main/java/org/koitharu/kotatsu/sync/ui/history/HistorySyncAdapter.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/sync/ui/history/HistorySyncAdapter.kt
@@ -9,6 +9,7 @@ import android.os.Bundle
 import org.koitharu.kotatsu.sync.domain.SyncController
 import org.koitharu.kotatsu.sync.domain.SyncHelper
 import org.koitharu.kotatsu.utils.ext.onError
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable

 class HistorySyncAdapter(context: Context) : AbstractThreadedSyncAdapter(context, true) {

@@ -20,9 +21,9 @@ class HistorySyncAdapter(context: Context) : AbstractThreadedSyncAdapter(context
 		syncResult: SyncResult,
 	) {
 		val syncHelper = SyncHelper(context, account, provider)
-		runCatching {
+		runCatchingCancellable {
 			syncHelper.syncHistory(syncResult)
 			SyncController(context).setLastSync(account, authority, System.currentTimeMillis())
 		}.onFailure(syncResult::onError)
 	}
-}
+}
--- a/app/src/main/java/org/koitharu/kotatsu/tracker/work/TrackWorker.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/tracker/work/TrackWorker.kt
@@ -28,6 +28,7 @@ import org.koitharu.kotatsu.tracker.domain.Tracker
 import org.koitharu.kotatsu.tracker.domain.model.MangaUpdates
 import org.koitharu.kotatsu.utils.PendingIntentCompat
 import org.koitharu.kotatsu.utils.ext.referer
+import org.koitharu.kotatsu.utils.ext.runCatchingCancellable
 import org.koitharu.kotatsu.utils.ext.toBitmapOrNull
 import org.koitharu.kotatsu.utils.ext.trySetForeground

@@ -82,7 +83,7 @@ class TrackWorker @AssistedInject constructor(
 		val deferredList = coroutineScope {
 			tracks.map { (track, channelId) ->
 				async(dispatcher) {
-					runCatching {
+					runCatchingCancellable {
 						tracker.fetchUpdates(track, commit = true)
 					}.onSuccess { updates ->
 						if (updates.isValid && updates.isNotEmpty()) {
--- a/app/src/main/java/org/koitharu/kotatsu/utils/PausingDispatcher.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/utils/PausingDispatcher.kt
@@ -1,50 +0,0 @@
-package org.koitharu.kotatsu.utils
-
-import androidx.annotation.MainThread
-import java.util.concurrent.ConcurrentLinkedQueue
-import kotlin.coroutines.CoroutineContext
-import kotlinx.coroutines.CoroutineDispatcher
-import kotlinx.coroutines.Runnable
-
-class PausingDispatcher(
-	private val dispatcher: CoroutineDispatcher,
-) : CoroutineDispatcher() {
-
-	@Volatile
-	private var isPaused = false
-	private val queue = ConcurrentLinkedQueue<Task>()
-
-	override fun isDispatchNeeded(context: CoroutineContext): Boolean {
-		return isPaused || super.isDispatchNeeded(context)
-	}
-
-	override fun dispatch(context: CoroutineContext, block: Runnable) {
-		if (isPaused) {
-			queue.add(Task(context, block))
-		} else {
-			dispatcher.dispatch(context, block)
-		}
-	}
-
-	@MainThread
-	fun pause() {
-		isPaused = true
-	}
-
-	@MainThread
-	fun resume() {
-		if (!isPaused) {
-			return
-		}
-		isPaused = false
-		while (true) {
-			val task = queue.poll() ?: break
-			dispatcher.dispatch(task.context, task.block)
-		}
-	}
-
-	private class Task(
-		val context: CoroutineContext,
-		val block: Runnable,
-	)
-}
--- a/app/src/main/java/org/koitharu/kotatsu/utils/ext/AndroidExt.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/utils/ext/AndroidExt.kt
@@ -46,7 +46,7 @@ val Context.connectivityManager: ConnectivityManager

 fun String.toUriOrNull() = if (isEmpty()) null else Uri.parse(this)

-suspend fun CoroutineWorker.trySetForeground(): Boolean = runCatching {
+suspend fun CoroutineWorker.trySetForeground(): Boolean = runCatchingCancellable {
 	val info = getForegroundInfo()
 	setForeground(info)
 }.isSuccess
@@ -95,6 +95,7 @@ fun SyncResult.onError(error: Throwable) {
 		is OperationApplicationException,
 		is SQLException,
 		-> databaseError = true
+
 		is JSONException -> stats.numParseExceptions++
 		else -> if (BuildConfig.DEBUG) throw error
 	}
--- a/app/src/main/java/org/koitharu/kotatsu/utils/ext/ThrowableExt.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/utils/ext/ThrowableExt.kt
@@ -3,16 +3,22 @@ package org.koitharu.kotatsu.utils.ext
 import android.content.ActivityNotFoundException
 import android.content.res.Resources
 import androidx.collection.arraySetOf
-import java.net.SocketTimeoutException
-import java.net.UnknownHostException
+import kotlinx.coroutines.CancellationException
 import okio.FileNotFoundException
 import org.acra.ktx.sendWithAcra
 import org.koitharu.kotatsu.R
-import org.koitharu.kotatsu.core.exceptions.*
+import org.koitharu.kotatsu.core.exceptions.CaughtException
+import org.koitharu.kotatsu.core.exceptions.CloudFlareProtectedException
+import org.koitharu.kotatsu.core.exceptions.EmptyHistoryException
+import org.koitharu.kotatsu.core.exceptions.SyncApiException
+import org.koitharu.kotatsu.core.exceptions.UnsupportedFileException
+import org.koitharu.kotatsu.core.exceptions.WrongPasswordException
 import org.koitharu.kotatsu.parsers.exception.AuthRequiredException
 import org.koitharu.kotatsu.parsers.exception.ContentUnavailableException
 import org.koitharu.kotatsu.parsers.exception.NotFoundException
 import org.koitharu.kotatsu.parsers.exception.ParseException
+import java.net.SocketTimeoutException
+import java.net.UnknownHostException

 fun Throwable.getDisplayMessage(resources: Resources): String = when (this) {
 	is AuthRequiredException -> resources.getString(R.string.auth_required)
@@ -20,16 +26,19 @@ fun Throwable.getDisplayMessage(resources: Resources): String = when (this) {
 	is ActivityNotFoundException,
 	is UnsupportedOperationException,
 	-> resources.getString(R.string.operation_not_supported)
+
 	is UnsupportedFileException -> resources.getString(R.string.text_file_not_supported)
 	is FileNotFoundException -> resources.getString(R.string.file_not_found)
 	is EmptyHistoryException -> resources.getString(R.string.history_is_empty)
 	is SyncApiException,
 	is ContentUnavailableException,
 	-> message
+
 	is ParseException -> shortMessage
 	is UnknownHostException,
 	is SocketTimeoutException,
 	-> resources.getString(R.string.network_error)
+
 	is WrongPasswordException -> resources.getString(R.string.wrong_password)
 	is NotFoundException -> resources.getString(R.string.not_found_404)
 	else -> localizedMessage
@@ -52,3 +61,15 @@ private val reportableExceptions = arraySetOf<Class<*>>(
 	ConcurrentModificationException::class.java,
 	UnsupportedOperationException::class.java,
 )
+
+inline fun <R> runCatchingCancellable(block: () -> R): Result<R> {
+	return try {
+		Result.success(block())
+	} catch (e: InterruptedException) {
+		throw e
+	} catch (e: CancellationException) {
+		throw e
+	} catch (e: Throwable) {
+		Result.failure(e)
+	}
+}
--- a/build.gradle
+++ b/build.gradle
@@ -36,7 +36,7 @@ Object localProperty(String name, Object defaultValue = 'null') {
 String currentBranch() {
 	def branchName = ""
 	try {
-		branchName = "git rev-parse --abbrev-ref HEAD".execute().text.trim();
+		branchName = "git rev-parse --abbrev-ref HEAD".execute().text.trim()
 	} catch (ignored) {
 		println "Git not found"
 	}