Fix crashes

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

@@ -68,7 +68,7 @@ abstract class BaseViewModel : ViewModel() {
 		errorEvent.call(error)
 	}
 
-	protected inline suspend fun <T> withLoading(block: () -> T): T = try {
+	protected inline fun <T> withLoading(block: () -> T): T = try {
 		loadingCounter.increment()
 		block()
 	} finally {

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

@@ -93,15 +93,19 @@ class DetailsViewModel @Inject constructor(
 
 	val details = MutableStateFlow(intent.manga?.let { MangaDetails(it, null, null, false) })
 	val manga = details.map { x -> x?.toManga() }
+		.withErrorHandling()
 		.stateIn(viewModelScope + Dispatchers.Default, SharingStarted.Eagerly, null)
 
 	val history = historyRepository.observeOne(mangaId)
+		.withErrorHandling()
 		.stateIn(viewModelScope + Dispatchers.Default, SharingStarted.Eagerly, null)
 
 	val favouriteCategories = interactor.observeFavourite(mangaId)
+		.withErrorHandling()
 		.stateIn(viewModelScope + Dispatchers.Default, SharingStarted.Eagerly, emptySet())
 
 	val isStatsAvailable = statsRepository.observeHasStats(mangaId)
+		.withErrorHandling()
 		.stateIn(viewModelScope + Dispatchers.Default, SharingStarted.Eagerly, false)
 
 	val remoteManga = MutableStateFlow<Manga?>(null)

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

@@ -221,7 +221,14 @@ class WebtoonScalingFrame @JvmOverloads constructor(
 		syncMatrixValues()
 	}
 
-	private fun scaleChild(newScale: Float, focusX: Float, focusY: Float) {
+	private fun scaleChild(
+		newScale: Float,
+		focusX: Float,
+		focusY: Float,
+	): Boolean {
+		if (scale.isNaN() || scale == 0f) {
+			return false
+		}
 		val factor = newScale / scale
 		if (newScale > 1) {
 			translateBounds.set(
@@ -240,13 +247,12 @@ class WebtoonScalingFrame @JvmOverloads constructor(
 		}
 		transformMatrix.postScale(factor, factor, focusX, focusY)
 		invalidateTarget()
+		return true
 	}
 
-
 	override fun onScale(detector: ScaleGestureDetector): Boolean {
 		val newScale = (scale * detector.scaleFactor).coerceIn(MIN_SCALE, MAX_SCALE)
-		scaleChild(newScale, detector.focusX, detector.focusY)
-		return true
+		return scaleChild(newScale, detector.focusX, detector.focusY)
 	}
 
 	override fun onScaleBegin(detector: ScaleGestureDetector): Boolean {

app/src/main/kotlin/org/koitharu/kotatsu/stats/domain/StatsCollector.kt

@@ -9,6 +9,8 @@ import kotlinx.coroutines.launch
 import org.koitharu.kotatsu.core.db.MangaDatabase
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.util.RetainedLifecycleCoroutineScope
+import org.koitharu.kotatsu.core.util.ext.printStackTraceDebug
+import org.koitharu.kotatsu.parsers.util.runCatchingCancellable
 import org.koitharu.kotatsu.reader.ui.ReaderState
 import org.koitharu.kotatsu.stats.data.StatsEntity
 import javax.inject.Inject
@@ -62,7 +64,11 @@ class StatsCollector @Inject constructor(
 
 	private fun commit(entity: StatsEntity) {
 		viewModelScope.launch(Dispatchers.Default) {
-			db.getStatsDao().upsert(entity)
+			runCatchingCancellable {
+				db.getStatsDao().upsert(entity)
+			}.onFailure { e ->
+				e.printStackTraceDebug()
+			}
 		}
 	}