Show inconito mode indicator on Read button

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

@@ -228,18 +228,18 @@ class DetailsActivity :
 		}
 	}
 
-	private fun onHistoryChanged(info: HistoryInfo?) {
+	private fun onHistoryChanged(info: HistoryInfo) {
 		with(binding.buttonRead) {
-			if (info?.history != null) {
+			if (info.history != null) {
 				setText(R.string._continue)
-				setIconResource(R.drawable.ic_play)
+				setIconResource(if (info.isIncognitoMode) R.drawable.ic_incognito else R.drawable.ic_play)
 			} else {
 				setText(R.string.read)
-				setIconResource(R.drawable.ic_read)
+				setIconResource(if (info.isIncognitoMode) R.drawable.ic_incognito else R.drawable.ic_play)
 			}
 		}
 		val text = when {
-			info == null -> getString(R.string.loading_)
+			!info.isValid -> getString(R.string.loading_)
 			info.currentChapter >= 0 -> getString(R.string.chapter_d_of_d, info.currentChapter + 1, info.totalChapters)
 			info.totalChapters == 0 -> getString(R.string.no_chapters)
 			else -> resources.getQuantityString(R.plurals.chapters, info.totalChapters, info.totalChapters)

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

@@ -18,7 +18,6 @@ import coil.request.ImageRequest
 import coil.util.CoilUtils
 import com.google.android.material.chip.Chip
 import dagger.hilt.android.AndroidEntryPoint
-import javax.inject.Inject
 import kotlinx.coroutines.launch
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.base.ui.BaseFragment
@@ -27,9 +26,9 @@ import org.koitharu.kotatsu.base.ui.list.decor.SpacingItemDecoration
 import org.koitharu.kotatsu.base.ui.widgets.ChipsView
 import org.koitharu.kotatsu.bookmarks.domain.Bookmark
 import org.koitharu.kotatsu.bookmarks.ui.adapter.BookmarksAdapter
-import org.koitharu.kotatsu.core.model.MangaHistory
 import org.koitharu.kotatsu.databinding.FragmentDetailsBinding
 import org.koitharu.kotatsu.details.ui.model.ChapterListItem
+import org.koitharu.kotatsu.details.ui.model.HistoryInfo
 import org.koitharu.kotatsu.details.ui.scrobbling.ScrobblingItemDecoration
 import org.koitharu.kotatsu.details.ui.scrobbling.ScrollingInfoAdapter
 import org.koitharu.kotatsu.history.domain.PROGRESS_NONE
@@ -45,8 +44,20 @@ import org.koitharu.kotatsu.scrobbling.domain.model.ScrobblingInfo
 import org.koitharu.kotatsu.search.ui.MangaListActivity
 import org.koitharu.kotatsu.search.ui.SearchActivity
 import org.koitharu.kotatsu.utils.FileSize
-import org.koitharu.kotatsu.utils.ext.*
+import org.koitharu.kotatsu.utils.ext.computeSize
+import org.koitharu.kotatsu.utils.ext.crossfade
+import org.koitharu.kotatsu.utils.ext.drawableTop
+import org.koitharu.kotatsu.utils.ext.enqueueWith
+import org.koitharu.kotatsu.utils.ext.ifNullOrEmpty
+import org.koitharu.kotatsu.utils.ext.measureHeight
+import org.koitharu.kotatsu.utils.ext.referer
+import org.koitharu.kotatsu.utils.ext.resolveDp
+import org.koitharu.kotatsu.utils.ext.scaleUpActivityOptionsOf
+import org.koitharu.kotatsu.utils.ext.textAndVisible
+import org.koitharu.kotatsu.utils.ext.toFileOrNull
+import org.koitharu.kotatsu.utils.ext.viewLifecycleScope
 import org.koitharu.kotatsu.utils.image.CoverSizeResolver
+import javax.inject.Inject
 
 @AndroidEntryPoint
 class DetailsFragment :
@@ -75,7 +86,7 @@ class DetailsFragment :
 		binding.chipsTags.onChipClickListener = this
 		viewModel.manga.observe(viewLifecycleOwner, ::onMangaUpdated)
 		viewModel.isLoading.observe(viewLifecycleOwner, ::onLoadingStateChanged)
-		viewModel.readingHistory.observe(viewLifecycleOwner, ::onHistoryChanged)
+		viewModel.historyInfo.observe(viewLifecycleOwner, ::onHistoryChanged)
 		viewModel.bookmarks.observe(viewLifecycleOwner, ::onBookmarksChanged)
 		viewModel.scrobblingInfo.observe(viewLifecycleOwner, ::onScrobblingInfoChanged)
 		viewModel.description.observe(viewLifecycleOwner, ::onDescriptionChanged)
@@ -123,12 +134,14 @@ class DetailsFragment :
 						drawableTop = ContextCompat.getDrawable(context, R.drawable.ic_state_finished)
 					}
 				}
+
 				MangaState.ONGOING -> {
 					infoLayout.textViewState.apply {
 						textAndVisible = resources.getString(R.string.state_ongoing)
 						drawableTop = ContextCompat.getDrawable(context, R.drawable.ic_state_ongoing)
 					}
 				}
+
 				else -> infoLayout.textViewState.isVisible = false
 			}
 			if (manga.source == MangaSource.LOCAL) {
@@ -178,8 +191,8 @@ class DetailsFragment :
 		}
 	}
 
-	private fun onHistoryChanged(history: MangaHistory?) {
+	private fun onHistoryChanged(history: HistoryInfo) {
-		binding.progressView.setPercent(history?.percent ?: PROGRESS_NONE, animate = true)
+		binding.progressView.setPercent(history.history?.percent ?: PROGRESS_NONE, animate = true)
 	}
 
 	private fun onLoadingStateChanged(isLoading: Boolean) {
@@ -229,6 +242,7 @@ class DetailsFragment :
 					),
 				)
 			}
+
 			R.id.textView_source -> {
 				startActivity(
 					MangaListActivity.newIntent(
@@ -237,6 +251,7 @@ class DetailsFragment :
 					),
 				)
 			}
+
 			R.id.imageView_cover -> {
 				startActivity(
 					ImageActivity.newIntent(v.context, manga.largeCoverUrl.ifNullOrEmpty { manga.coverUrl }),
@@ -249,7 +264,7 @@ class DetailsFragment :
 	override fun onLongClick(v: View): Boolean {
 		when (v.id) {
 			R.id.button_read -> {
-				if (viewModel.readingHistory.value == null) {
+				if (viewModel.historyInfo.value?.history == null) {
 					return false
 				}
 				val menu = PopupMenu(v.context, v)
@@ -271,12 +286,14 @@ class DetailsFragment :
 							)
 							true
 						}
+
 						else -> false
 					}
 				}
 				menu.show()
 				return true
 			}
+
 			else -> return false
 		}
 	}

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

@@ -13,10 +13,18 @@ import androidx.lifecycle.viewModelScope
 import dagger.assisted.Assisted
 import dagger.assisted.AssistedFactory
 import dagger.assisted.AssistedInject
-import java.io.IOException
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
-import kotlinx.coroutines.flow.*
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.SharingStarted
+import kotlinx.coroutines.flow.combine
+import kotlinx.coroutines.flow.distinctUntilChangedBy
+import kotlinx.coroutines.flow.filterNotNull
+import kotlinx.coroutines.flow.flatMapLatest
+import kotlinx.coroutines.flow.flowOf
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.stateIn
+import kotlinx.coroutines.flow.transformLatest
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.plus
 import org.koitharu.kotatsu.R
@@ -46,6 +54,7 @@ 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
+import java.io.IOException
 
 class DetailsViewModel @AssistedInject constructor(
 	@Assisted intent: MangaIntent,
@@ -91,17 +100,18 @@ class DetailsViewModel @AssistedInject constructor(
 	val manga = delegate.manga.filterNotNull().asLiveData(viewModelScope.coroutineContext)
 	val favouriteCategories = favourite.asLiveData(viewModelScope.coroutineContext)
 	val newChaptersCount = newChapters.asLiveData(viewModelScope.coroutineContext)
-
-	@Deprecated("")
-	val readingHistory = history.asLiveData(viewModelScope.coroutineContext)
 	val isChaptersReversed = chaptersReversed.asLiveData(viewModelScope.coroutineContext)
 
-	val historyInfo = combine(
+	val historyInfo: LiveData<HistoryInfo> = combine(
 		delegate.manga,
 		history,
-	) { m, h ->
+		settings.observeAsFlow(AppSettings.KEY_INCOGNITO_MODE) { isIncognitoModeEnabled },
-		HistoryInfo(m, h)
+	) { m, h, im ->
-	}.asFlowLiveData(viewModelScope.coroutineContext + Dispatchers.Default, null)
+		HistoryInfo(m, h, im)
+	}.asFlowLiveData(
+		context = viewModelScope.coroutineContext + Dispatchers.Default,
+		defaultValue = HistoryInfo(null, null, false),
+	)
 
 	val bookmarks = delegate.manga.flatMapLatest {
 		if (it != null) bookmarksRepository.observeBookmarks(it) else flowOf(emptyList())

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

@@ -7,8 +7,12 @@ class HistoryInfo(
 	val totalChapters: Int,
 	val currentChapter: Int,
 	val history: MangaHistory?,
+	val isIncognitoMode: Boolean,
 ) {
 
+	val isValid: Boolean
+		get() = totalChapters >= 0
+
 	override fun equals(other: Any?): Boolean {
 		if (this === other) return true
 		if (javaClass != other?.javaClass) return false
@@ -18,6 +22,7 @@ class HistoryInfo(
 		if (totalChapters != other.totalChapters) return false
 		if (currentChapter != other.currentChapter) return false
 		if (history != other.history) return false
+		if (isIncognitoMode != other.isIncognitoMode) return false
 
 		return true
 	}
@@ -26,20 +31,21 @@ class HistoryInfo(
 		var result = totalChapters
 		result = 31 * result + currentChapter
 		result = 31 * result + (history?.hashCode() ?: 0)
+		result = 31 * result + isIncognitoMode.hashCode()
 		return result
 	}
 }
 
-@Suppress("FunctionName")
+fun HistoryInfo(manga: Manga?, history: MangaHistory?, isIncognitoMode: Boolean): HistoryInfo {
-fun HistoryInfo(manga: Manga?, history: MangaHistory?): HistoryInfo? {
+	val chapters = manga?.chapters
-	val chapters = manga?.chapters ?: return null
 	return HistoryInfo(
-		totalChapters = chapters.size,
+		totalChapters = chapters?.size ?: -1,
-		currentChapter = if (history != null) {
+		currentChapter = if (history != null && !chapters.isNullOrEmpty()) {
 			chapters.indexOfFirst { it.id == history.chapterId }
 		} else {
 			-1
 		},
 		history = history,
+		isIncognitoMode = isIncognitoMode,
 	)
 }

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

@@ -12,6 +12,7 @@ import org.koitharu.kotatsu.core.db.MangaDatabase
 import org.koitharu.kotatsu.core.exceptions.EmptyHistoryException
 import org.koitharu.kotatsu.core.github.AppUpdateRepository
 import org.koitharu.kotatsu.core.prefs.AppSettings
+import org.koitharu.kotatsu.core.prefs.observeAsFlow
 import org.koitharu.kotatsu.core.prefs.observeAsLiveData
 import org.koitharu.kotatsu.history.domain.HistoryRepository
 import org.koitharu.kotatsu.parsers.model.Manga
@@ -34,9 +35,12 @@ class MainViewModel @Inject constructor(
 
 	val onOpenReader = SingleLiveEvent<Manga>()
 
-	val isResumeEnabled = historyRepository
+	val isResumeEnabled = combine(
-		.observeHasItems()
+		historyRepository.observeHasItems(),
-		.asFlowLiveData(viewModelScope.coroutineContext + Dispatchers.Default, false)
+		settings.observeAsFlow(AppSettings.KEY_INCOGNITO_MODE) { isIncognitoModeEnabled },
+	) { hasItems, incognito ->
+		hasItems && !incognito
+	}.asFlowLiveData(viewModelScope.coroutineContext + Dispatchers.Default, false)
 
 	val isFeedAvailable = settings.observeAsLiveData(
 		context = viewModelScope.coroutineContext + Dispatchers.Default,