Show related manga

app/src/main/kotlin/org/koitharu/kotatsu/core/parser/MangaRepository.kt

@@ -36,6 +36,8 @@ interface MangaRepository {
 
 	suspend fun getTags(): Set<MangaTag>
 
+	suspend fun getRelated(seed: Manga): List<Manga>
+
 	@Singleton
 	class Factory @Inject constructor(
 		private val localMangaRepository: LocalMangaRepository,

app/src/main/kotlin/org/koitharu/kotatsu/core/parser/RemoteMangaRepository.kt

@@ -51,7 +51,7 @@ class RemoteMangaRepository(
 			getConfig()[parser.configKeyDomain] = value
 		}
 
-	val headers: Headers?
+	val headers: Headers
 		get() = parser.headers
 
 	override fun intercept(chain: Interceptor.Chain): Response {
@@ -94,6 +94,10 @@ class RemoteMangaRepository(
 
 	suspend fun getFavicons(): Favicons = parser.getFavicons()
 
+	override suspend fun getRelated(seed: Manga): List<Manga> {
+		return parser.getRelatedManga(seed).filterNot { it.id == seed.id }
+	}
+
 	fun getAuthProvider(): MangaParserAuthProvider? = parser as? MangaParserAuthProvider
 
 	fun getConfigKeys(): List<ConfigKey<*>> = ArrayList<ConfigKey<*>>().also {

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

@@ -1,6 +1,7 @@
 package org.koitharu.kotatsu.core.ui
 
 import androidx.recyclerview.widget.AsyncListDiffer.ListListener
+import com.hannesdorfmann.adapterdelegates4.AdapterDelegate
 import com.hannesdorfmann.adapterdelegates4.AsyncListDifferDelegationAdapter
 import kotlinx.coroutines.flow.FlowCollector
 import org.koitharu.kotatsu.core.util.ContinuationResumeRunnable
@@ -8,7 +9,9 @@ import org.koitharu.kotatsu.list.ui.ListModelDiffCallback
 import org.koitharu.kotatsu.list.ui.model.ListModel
 import kotlin.coroutines.suspendCoroutine
 
-abstract class BaseListAdapter : AsyncListDifferDelegationAdapter<ListModel>(ListModelDiffCallback),
+open class BaseListAdapter(
+	vararg delegates: AdapterDelegate<List<ListModel>>,
+) : AsyncListDifferDelegationAdapter<ListModel>(ListModelDiffCallback, *delegates),
 	FlowCollector<List<ListModel>> {
 
 	override suspend fun emit(value: List<ListModel>) = suspendCoroutine { cont ->

app/src/main/kotlin/org/koitharu/kotatsu/details/domain/RelatedMangaUseCase.kt

@@ -0,0 +1,18 @@
+package org.koitharu.kotatsu.details.domain
+
+import org.koitharu.kotatsu.core.parser.MangaRepository
+import org.koitharu.kotatsu.core.util.ext.printStackTraceDebug
+import org.koitharu.kotatsu.parsers.model.Manga
+import org.koitharu.kotatsu.parsers.util.runCatchingCancellable
+import javax.inject.Inject
+
+class RelatedMangaUseCase @Inject constructor(
+	private val mangaRepositoryFactory: MangaRepository.Factory,
+) {
+
+	suspend operator fun invoke(seed: Manga) = runCatchingCancellable {
+		mangaRepositoryFactory.create(seed.source).getRelated(seed)
+	}.onFailure {
+		it.printStackTraceDebug()
+	}.getOrNull()
+}

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

@@ -24,6 +24,7 @@ import org.koitharu.kotatsu.bookmarks.domain.Bookmark
 import org.koitharu.kotatsu.bookmarks.ui.adapter.BookmarksAdapter
 import org.koitharu.kotatsu.core.model.countChaptersByBranch
 import org.koitharu.kotatsu.core.ui.BaseFragment
+import org.koitharu.kotatsu.core.ui.BaseListAdapter
 import org.koitharu.kotatsu.core.ui.image.CoverSizeResolver
 import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
 import org.koitharu.kotatsu.core.ui.list.decor.SpacingItemDecoration
@@ -45,6 +46,9 @@ import org.koitharu.kotatsu.details.ui.scrobbling.ScrollingInfoAdapter
 import org.koitharu.kotatsu.history.data.PROGRESS_NONE
 import org.koitharu.kotatsu.image.ui.ImageActivity
 import org.koitharu.kotatsu.list.domain.ListExtraProvider
+import org.koitharu.kotatsu.list.ui.adapter.mangaGridItemAD
+import org.koitharu.kotatsu.list.ui.model.MangaItemModel
+import org.koitharu.kotatsu.list.ui.size.StaticItemSizeResolver
 import org.koitharu.kotatsu.main.ui.owners.NoModalBottomSheetOwner
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaSource
@@ -87,6 +91,9 @@ class DetailsFragment :
 		binding.infoLayout.textViewSource.setOnClickListener(this)
 		binding.textViewDescription.movementMethod = LinkMovementMethod.getInstance()
 		binding.chipsTags.onChipClickListener = this
+		binding.recyclerViewRelated.addItemDecoration(
+			SpacingItemDecoration(resources.getDimensionPixelOffset(R.dimen.grid_spacing)),
+		)
 		TitleScrollCoordinator(binding.textViewTitle).attach(binding.scrollView)
 		viewModel.manga.filterNotNull().observe(viewLifecycleOwner, ::onMangaUpdated)
 		viewModel.isLoading.observe(viewLifecycleOwner, ::onLoadingStateChanged)
@@ -96,6 +103,7 @@ class DetailsFragment :
 		viewModel.description.observe(viewLifecycleOwner, ::onDescriptionChanged)
 		viewModel.chapters.observe(viewLifecycleOwner, ::onChaptersChanged)
 		viewModel.localSize.observe(viewLifecycleOwner, ::onLocalSizeChanged)
+		viewModel.relatedManga.observe(viewLifecycleOwner, ::onRelatedMangaChanged)
 	}
 
 	override fun onItemClick(item: Bookmark, view: View) {
@@ -193,6 +201,24 @@ class DetailsFragment :
 		}
 	}
 
+	private fun onRelatedMangaChanged(related: List<MangaItemModel>) {
+		if (related.isEmpty()) {
+			requireViewBinding().groupRelated.isVisible = false
+			return
+		}
+		val rv = viewBinding?.recyclerViewRelated ?: return
+		val adapter = (rv.adapter as? BaseListAdapter) ?: BaseListAdapter(
+			mangaGridItemAD(
+				coil, viewLifecycleOwner,
+				StaticItemSizeResolver(resources.getDimensionPixelSize(R.dimen.smaller_grid_width)),
+			) { item, view ->
+				startActivity(DetailsActivity.newIntent(view.context, item), scaleUpActivityOptionsOf(view))
+			},
+		).also { rv.adapter = it }
+		adapter.items = related
+		requireViewBinding().groupRelated.isVisible = true
+	}
+
 	private fun onHistoryChanged(history: HistoryInfo) {
 		requireViewBinding().progressView.setPercent(history.history?.percent ?: PROGRESS_NONE, animate = true)
 	}

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

@@ -23,6 +23,7 @@ import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.flow.flatMapLatest
 import kotlinx.coroutines.flow.flowOf
 import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.mapLatest
 import kotlinx.coroutines.flow.stateIn
 import kotlinx.coroutines.flow.transformLatest
 import kotlinx.coroutines.flow.update
@@ -34,6 +35,7 @@ import org.koitharu.kotatsu.core.model.getPreferredBranch
 import org.koitharu.kotatsu.core.os.NetworkState
 import org.koitharu.kotatsu.core.parser.MangaIntent
 import org.koitharu.kotatsu.core.prefs.AppSettings
+import org.koitharu.kotatsu.core.prefs.ListMode
 import org.koitharu.kotatsu.core.prefs.observeAsStateFlow
 import org.koitharu.kotatsu.core.ui.BaseViewModel
 import org.koitharu.kotatsu.core.util.ext.MutableEventFlow
@@ -46,12 +48,16 @@ import org.koitharu.kotatsu.core.util.ext.toFileOrNull
 import org.koitharu.kotatsu.details.domain.BranchComparator
 import org.koitharu.kotatsu.details.domain.DetailsInteractor
 import org.koitharu.kotatsu.details.domain.DoubleMangaLoadUseCase
+import org.koitharu.kotatsu.details.domain.RelatedMangaUseCase
 import org.koitharu.kotatsu.details.domain.model.DoubleManga
 import org.koitharu.kotatsu.details.ui.model.ChapterListItem
 import org.koitharu.kotatsu.details.ui.model.HistoryInfo
 import org.koitharu.kotatsu.details.ui.model.MangaBranch
 import org.koitharu.kotatsu.download.ui.worker.DownloadWorker
 import org.koitharu.kotatsu.history.data.HistoryRepository
+import org.koitharu.kotatsu.list.domain.ListExtraProvider
+import org.koitharu.kotatsu.list.ui.model.MangaItemModel
+import org.koitharu.kotatsu.list.ui.model.toUi
 import org.koitharu.kotatsu.local.data.LocalStorageChanges
 import org.koitharu.kotatsu.local.domain.DeleteLocalMangaUseCase
 import org.koitharu.kotatsu.local.domain.model.LocalManga
@@ -74,6 +80,8 @@ class DetailsViewModel @Inject constructor(
 	savedStateHandle: SavedStateHandle,
 	private val deleteLocalMangaUseCase: DeleteLocalMangaUseCase,
 	private val doubleMangaLoadUseCase: DoubleMangaLoadUseCase,
+	private val relatedMangaUseCase: RelatedMangaUseCase,
+	private val extraProvider: ListExtraProvider,
 	networkState: NetworkState,
 ) : BaseViewModel() {
 
@@ -155,6 +163,18 @@ class DetailsViewModel @Inject constructor(
 	val scrobblingInfo: StateFlow<List<ScrobblingInfo>> = interactor.observeScrobblingInfo(mangaId)
 		.stateIn(viewModelScope + Dispatchers.Default, SharingStarted.Eagerly, emptyList())
 
+	val relatedManga: StateFlow<List<MangaItemModel>> = doubleManga.map {
+		it?.remote
+	}.distinctUntilChangedBy { it?.id }
+		.mapLatest {
+			if (it != null) {
+				relatedMangaUseCase.invoke(it)?.toUi(ListMode.GRID, extraProvider).orEmpty()
+			} else {
+				emptyList()
+			}
+		}
+		.stateIn(viewModelScope, SharingStarted.Lazily, emptyList())
+
 	val branches: StateFlow<List<MangaBranch>> = combine(
 		doubleManga,
 		selectedBranch,

app/src/main/kotlin/org/koitharu/kotatsu/list/ui/adapter/MangaGridItemAD.kt

@@ -14,16 +14,16 @@ import org.koitharu.kotatsu.core.util.ext.newImageRequest
 import org.koitharu.kotatsu.core.util.ext.source
 import org.koitharu.kotatsu.databinding.ItemMangaGridBinding
 import org.koitharu.kotatsu.history.data.PROGRESS_NONE
-import org.koitharu.kotatsu.list.ui.ItemSizeResolver
 import org.koitharu.kotatsu.list.ui.model.ListModel
 import org.koitharu.kotatsu.list.ui.model.MangaGridModel
+import org.koitharu.kotatsu.list.ui.size.ItemSizeResolver
 import org.koitharu.kotatsu.parsers.model.Manga
 
 fun mangaGridItemAD(
 	coil: ImageLoader,
 	lifecycleOwner: LifecycleOwner,
-	clickListener: OnListItemClickListener<Manga>,
 	sizeResolver: ItemSizeResolver?,
+	clickListener: OnListItemClickListener<Manga>,
 ) = adapterDelegateViewBinding<MangaGridModel, ListModel, ItemMangaGridBinding>(
 	{ inflater, parent -> ItemMangaGridBinding.inflate(inflater, parent, false) },
 ) {
@@ -35,7 +35,7 @@ fun mangaGridItemAD(
 	itemView.setOnLongClickListener {
 		clickListener.onItemLongClick(item.manga, it)
 	}
-	sizeResolver?.attachToView(lifecycleOwner, itemView, binding.textViewTitle)
+	sizeResolver?.attachToView(lifecycleOwner, itemView, binding.textViewTitle, binding.progressView)
 
 	bind { payloads ->
 		binding.textViewTitle.text = item.title

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

@@ -14,7 +14,7 @@ open class MangaListAdapter(
 		delegatesManager
 			.addDelegate(ITEM_TYPE_MANGA_LIST, mangaListItemAD(coil, lifecycleOwner, listener))
 			.addDelegate(ITEM_TYPE_MANGA_LIST_DETAILED, mangaListDetailedItemAD(coil, lifecycleOwner, listener))
-			.addDelegate(ITEM_TYPE_MANGA_GRID, mangaGridItemAD(coil, lifecycleOwner, listener, null))
+			.addDelegate(ITEM_TYPE_MANGA_GRID, mangaGridItemAD(coil, lifecycleOwner, null, listener))
 			.addDelegate(ITEM_TYPE_LOADING_FOOTER, loadingFooterAD())
 			.addDelegate(ITEM_TYPE_LOADING_STATE, loadingStateAD())
 			.addDelegate(ITEM_TYPE_ERROR_STATE, errorStateListAD(listener))

app/src/main/kotlin/org/koitharu/kotatsu/list/ui/model/ListModelConversionExt.kt

@@ -61,7 +61,11 @@ suspend fun Manga.toGridModel(
 suspend fun List<Manga>.toUi(
 	mode: ListMode,
 	extraProvider: ListExtraProvider,
-): List<MangaItemModel> = toUi(ArrayList(size), mode, extraProvider)
+): List<MangaItemModel> = if (isEmpty()) {
+	emptyList()
+} else {
+	toUi(ArrayList(size), mode, extraProvider)
+}
 
 suspend fun <C : MutableCollection<in MangaItemModel>> List<Manga>.toUi(
 	destination: C,

app/src/main/kotlin/org/koitharu/kotatsu/list/ui/size/DynamicItemSizeResolver.kt

@@ -1,4 +1,4 @@
-package org.koitharu.kotatsu.list.ui
+package org.koitharu.kotatsu.list.ui.size
 
 import android.content.SharedPreferences
 import android.content.res.Resources
@@ -9,21 +9,27 @@ import androidx.core.view.updateLayoutParams
 import androidx.core.widget.TextViewCompat
 import androidx.lifecycle.DefaultLifecycleObserver
 import androidx.lifecycle.LifecycleOwner
-import kotlin.math.roundToInt
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.prefs.AppSettings
+import org.koitharu.kotatsu.history.ui.util.ReadingProgressView
+import kotlin.math.roundToInt
 
-class ItemSizeResolver(resources: Resources, private val settings: AppSettings) {
+class DynamicItemSizeResolver(resources: Resources, private val settings: AppSettings) : ItemSizeResolver {
 
 	private val gridWidth = resources.getDimension(R.dimen.preferred_grid_width)
 	private val scaleFactor: Float
 		get() = settings.gridSize / 100f
 
-	val cellWidth: Int
+	override val cellWidth: Int
 		get() = (gridWidth * scaleFactor).roundToInt()
 
-	fun attachToView(lifecycleOwner: LifecycleOwner, view: View, textView: TextView?) {
+	override fun attachToView(
-		val observer = SizeObserver(view, textView)
+		lifecycleOwner: LifecycleOwner,
+		view: View,
+		textView: TextView?,
+		progressView: ReadingProgressView?
+	) {
+		val observer = SizeObserver(view, textView, progressView)
 		view.addOnAttachStateChangeListener(observer)
 		lifecycleOwner.lifecycle.addObserver(observer)
 		if (view.isAttachedToWindow) {
@@ -34,6 +40,7 @@ class ItemSizeResolver(resources: Resources, private val settings: AppSettings)
 	private inner class SizeObserver(
 		private val view: View,
 		private val textView: TextView?,
+		private val progressView: ReadingProgressView?,
 	) : DefaultLifecycleObserver, SharedPreferences.OnSharedPreferenceChangeListener, View.OnAttachStateChangeListener {
 
 		private val widthThreshold = view.resources.getDimensionPixelSize(R.dimen.small_grid_width)
@@ -68,6 +75,23 @@ class ItemSizeResolver(resources: Resources, private val settings: AppSettings)
 			view.updateLayoutParams {
 				width = newWidth
 			}
+			progressView?.adjustSize(newWidth)
+		}
+
+		private fun ReadingProgressView.adjustSize(width: Int) {
+			val lp = layoutParams
+			val size = resources.getDimensionPixelSize(
+				if (width < widthThreshold) {
+					R.dimen.card_indicator_size_small
+				} else {
+					R.dimen.card_indicator_size
+				},
+			)
+			if (lp.width != size || lp.height != size) {
+				lp.width = size
+				lp.height = size
+				layoutParams = lp
+			}
 		}
 
 		private fun TextView.adjustTextAppearance(width: Int) {

app/src/main/kotlin/org/koitharu/kotatsu/list/ui/size/ItemSizeResolver.kt

@@ -0,0 +1,18 @@
+package org.koitharu.kotatsu.list.ui.size
+
+import android.view.View
+import android.widget.TextView
+import androidx.lifecycle.LifecycleOwner
+import org.koitharu.kotatsu.history.ui.util.ReadingProgressView
+
+interface ItemSizeResolver {
+
+	val cellWidth: Int
+
+	fun attachToView(
+		lifecycleOwner: LifecycleOwner,
+		view: View,
+		textView: TextView?,
+		progressView: ReadingProgressView?,
+	)
+}

app/src/main/kotlin/org/koitharu/kotatsu/list/ui/size/StaticItemSizeResolver.kt

@@ -0,0 +1,56 @@
+package org.koitharu.kotatsu.list.ui.size
+
+import android.view.View
+import android.widget.TextView
+import androidx.core.view.updateLayoutParams
+import androidx.core.widget.TextViewCompat
+import androidx.lifecycle.LifecycleOwner
+import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.history.ui.util.ReadingProgressView
+
+class StaticItemSizeResolver(
+	override val cellWidth: Int,
+) : ItemSizeResolver {
+
+	private var widthThreshold: Int = -1
+	private var textAppearanceResId = R.style.TextAppearance_Kotatsu_GridTitle
+
+	override fun attachToView(
+		lifecycleOwner: LifecycleOwner,
+		view: View,
+		textView: TextView?,
+		progressView: ReadingProgressView?
+	) {
+		if (widthThreshold == -1) {
+			widthThreshold = view.resources.getDimensionPixelSize(R.dimen.small_grid_width)
+			textAppearanceResId = if (cellWidth < widthThreshold) {
+				R.style.TextAppearance_Kotatsu_GridTitle_Small
+			} else {
+				R.style.TextAppearance_Kotatsu_GridTitle
+			}
+		}
+		if (textView != null) {
+			TextViewCompat.setTextAppearance(textView, textAppearanceResId)
+		}
+		view.updateLayoutParams {
+			width = cellWidth
+		}
+		progressView?.adjustSize()
+	}
+
+	private fun ReadingProgressView.adjustSize() {
+		val lp = layoutParams
+		val size = resources.getDimensionPixelSize(
+			if (cellWidth < widthThreshold) {
+				R.dimen.card_indicator_size_small
+			} else {
+				R.dimen.card_indicator_size
+			},
+		)
+		if (lp.width != size || lp.height != size) {
+			lp.width = size
+			lp.height = size
+			layoutParams = lp
+		}
+	}
+}

app/src/main/kotlin/org/koitharu/kotatsu/local/data/LocalMangaRepository.kt

@@ -16,6 +16,7 @@ import org.koitharu.kotatsu.core.parser.MangaRepository
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.util.CompositeMutex
 import org.koitharu.kotatsu.core.util.ext.deleteAwait
+import org.koitharu.kotatsu.core.util.ext.printStackTraceDebug
 import org.koitharu.kotatsu.local.data.input.LocalMangaInput
 import org.koitharu.kotatsu.local.data.output.LocalMangaOutput
 import org.koitharu.kotatsu.local.data.output.LocalMangaUtil
@@ -27,9 +28,7 @@ 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.runCatchingCancellable
-import org.koitharu.kotatsu.core.util.ext.printStackTraceDebug
 import java.io.File
-import java.io.FilenameFilter
 import java.util.EnumSet
 import javax.inject.Inject
 import javax.inject.Singleton
@@ -153,6 +152,8 @@ class LocalMangaRepository @Inject constructor(
 
 	override suspend fun getTags() = emptySet<MangaTag>()
 
+	override suspend fun getRelated(seed: Manga): List<Manga> = emptyList()
+
 	suspend fun getOutputDir(manga: Manga): File? {
 		val defaultDir = storageManager.getDefaultWriteableDir()
 		if (defaultDir != null && LocalMangaOutput.get(defaultDir, manga) != null) {

app/src/main/kotlin/org/koitharu/kotatsu/search/ui/multi/MultiSearchActivity.kt

@@ -28,10 +28,10 @@ import org.koitharu.kotatsu.databinding.ActivitySearchMultiBinding
 import org.koitharu.kotatsu.details.ui.DetailsActivity
 import org.koitharu.kotatsu.download.ui.worker.DownloadStartedObserver
 import org.koitharu.kotatsu.favourites.ui.categories.select.FavouriteCategoriesSheet
-import org.koitharu.kotatsu.list.ui.ItemSizeResolver
 import org.koitharu.kotatsu.list.ui.MangaSelectionDecoration
 import org.koitharu.kotatsu.list.ui.adapter.MangaListListener
 import org.koitharu.kotatsu.list.ui.model.ListHeader
+import org.koitharu.kotatsu.list.ui.size.DynamicItemSizeResolver
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaTag
 import org.koitharu.kotatsu.reader.ui.ReaderActivity.IntentBuilder
@@ -64,7 +64,7 @@ class MultiSearchActivity :
 		val itemCLickListener = OnListItemClickListener<MultiSearchListModel> { item, view ->
 			startActivity(SearchActivity.newIntent(view.context, item.source, viewModel.query.value))
 		}
-		val sizeResolver = ItemSizeResolver(resources, settings)
+		val sizeResolver = DynamicItemSizeResolver(resources, settings)
 		val selectionDecoration = MangaSelectionDecoration(this)
 		selectionController = ListSelectionController(
 			activity = this,

app/src/main/kotlin/org/koitharu/kotatsu/search/ui/multi/adapter/MultiSearchAdapter.kt

@@ -6,7 +6,6 @@ import androidx.recyclerview.widget.RecyclerView.RecycledViewPool
 import coil.ImageLoader
 import com.hannesdorfmann.adapterdelegates4.AsyncListDifferDelegationAdapter
 import org.koitharu.kotatsu.core.ui.list.OnListItemClickListener
-import org.koitharu.kotatsu.list.ui.ItemSizeResolver
 import org.koitharu.kotatsu.list.ui.MangaSelectionDecoration
 import org.koitharu.kotatsu.list.ui.adapter.MangaListListener
 import org.koitharu.kotatsu.list.ui.adapter.emptyStateListAD
@@ -15,6 +14,7 @@ import org.koitharu.kotatsu.list.ui.adapter.loadingFooterAD
 import org.koitharu.kotatsu.list.ui.adapter.loadingStateAD
 import org.koitharu.kotatsu.list.ui.model.ListModel
 import org.koitharu.kotatsu.list.ui.model.LoadingFooter
+import org.koitharu.kotatsu.list.ui.size.ItemSizeResolver
 import org.koitharu.kotatsu.search.ui.multi.MultiSearchListModel
 import kotlin.jvm.internal.Intrinsics
 

app/src/main/kotlin/org/koitharu/kotatsu/search/ui/multi/adapter/SearchResultsAD.kt

@@ -14,10 +14,10 @@ import org.koitharu.kotatsu.core.ui.list.decor.SpacingItemDecoration
 import org.koitharu.kotatsu.core.util.ext.getDisplayMessage
 import org.koitharu.kotatsu.core.util.ext.textAndVisible
 import org.koitharu.kotatsu.databinding.ItemListGroupBinding
-import org.koitharu.kotatsu.list.ui.ItemSizeResolver
 import org.koitharu.kotatsu.list.ui.MangaSelectionDecoration
 import org.koitharu.kotatsu.list.ui.adapter.mangaGridItemAD
 import org.koitharu.kotatsu.list.ui.model.ListModel
+import org.koitharu.kotatsu.list.ui.size.ItemSizeResolver
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.search.ui.multi.MultiSearchListModel
 
@@ -35,7 +35,7 @@ fun searchResultsAD(
 
 	binding.recyclerView.setRecycledViewPool(sharedPool)
 	val adapter = ListDelegationAdapter(
-		mangaGridItemAD(coil, lifecycleOwner, listener, sizeResolver),
+		mangaGridItemAD(coil, lifecycleOwner, sizeResolver, listener),
 	)
 	binding.recyclerView.addItemDecoration(selectionDecoration)
 	binding.recyclerView.adapter = adapter

app/src/main/kotlin/org/koitharu/kotatsu/shelf/ui/ShelfFragment.kt

@@ -28,8 +28,8 @@ import org.koitharu.kotatsu.details.ui.DetailsActivity
 import org.koitharu.kotatsu.download.ui.worker.DownloadStartedObserver
 import org.koitharu.kotatsu.favourites.ui.FavouritesActivity
 import org.koitharu.kotatsu.history.ui.HistoryActivity
-import org.koitharu.kotatsu.list.ui.ItemSizeResolver
 import org.koitharu.kotatsu.list.ui.model.ListModel
+import org.koitharu.kotatsu.list.ui.size.DynamicItemSizeResolver
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.search.ui.MangaListActivity
@@ -67,7 +67,7 @@ class ShelfFragment :
 	override fun onViewBindingCreated(binding: FragmentShelfBinding, savedInstanceState: Bundle?) {
 		super.onViewBindingCreated(binding, savedInstanceState)
 		nestedScrollStateHandle = NestedScrollStateHandle(savedInstanceState, KEY_NESTED_SCROLL)
-		val sizeResolver = ItemSizeResolver(resources, settings)
+		val sizeResolver = DynamicItemSizeResolver(resources, settings)
 		selectionController = SectionedSelectionController(
 			activity = requireActivity(),
 			owner = this,

app/src/main/kotlin/org/koitharu/kotatsu/shelf/ui/adapter/ShelfAdapter.kt

@@ -2,14 +2,12 @@ package org.koitharu.kotatsu.shelf.ui.adapter
 
 import android.content.Context
 import androidx.lifecycle.LifecycleOwner
-import androidx.recyclerview.widget.DiffUtil
 import androidx.recyclerview.widget.RecyclerView
 import coil.ImageLoader
 import com.hannesdorfmann.adapterdelegates4.AsyncListDifferDelegationAdapter
 import org.koitharu.kotatsu.core.ui.list.NestedScrollStateHandle
 import org.koitharu.kotatsu.core.ui.list.SectionedSelectionController
 import org.koitharu.kotatsu.core.ui.list.fastscroll.FastScroller
-import org.koitharu.kotatsu.list.ui.ItemSizeResolver
 import org.koitharu.kotatsu.list.ui.ListModelDiffCallback
 import org.koitharu.kotatsu.list.ui.adapter.emptyHintAD
 import org.koitharu.kotatsu.list.ui.adapter.emptyStateListAD
@@ -17,9 +15,8 @@ import org.koitharu.kotatsu.list.ui.adapter.errorStateListAD
 import org.koitharu.kotatsu.list.ui.adapter.loadingFooterAD
 import org.koitharu.kotatsu.list.ui.adapter.loadingStateAD
 import org.koitharu.kotatsu.list.ui.model.ListModel
-import org.koitharu.kotatsu.list.ui.model.LoadingFooter
+import org.koitharu.kotatsu.list.ui.size.ItemSizeResolver
 import org.koitharu.kotatsu.shelf.ui.model.ShelfSectionModel
-import kotlin.jvm.internal.Intrinsics
 
 class ShelfAdapter(
 	lifecycleOwner: LifecycleOwner,

app/src/main/kotlin/org/koitharu/kotatsu/shelf/ui/adapter/ShelfGroupAD.kt

@@ -15,10 +15,10 @@ import org.koitharu.kotatsu.core.ui.list.decor.SpacingItemDecoration
 import org.koitharu.kotatsu.core.util.ext.removeItemDecoration
 import org.koitharu.kotatsu.core.util.ext.setTextAndVisible
 import org.koitharu.kotatsu.databinding.ItemListGroupBinding
-import org.koitharu.kotatsu.list.ui.ItemSizeResolver
 import org.koitharu.kotatsu.list.ui.ListModelDiffCallback
 import org.koitharu.kotatsu.list.ui.adapter.mangaGridItemAD
 import org.koitharu.kotatsu.list.ui.model.ListModel
+import org.koitharu.kotatsu.list.ui.size.ItemSizeResolver
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.shelf.ui.model.ShelfSectionModel
 
@@ -49,7 +49,7 @@ fun shelfGroupAD(
 
 	val adapter = AsyncListDifferDelegationAdapter(
 		ListModelDiffCallback,
-		mangaGridItemAD(coil, lifecycleOwner, listenerAdapter, sizeResolver),
+		mangaGridItemAD(coil, lifecycleOwner, sizeResolver, listenerAdapter),
 	)
 	adapter.stateRestorationPolicy = RecyclerView.Adapter.StateRestorationPolicy.PREVENT_WHEN_EMPTY
 	adapter.registerAdapterDataObserver(ScrollKeepObserver(binding.recyclerView))

app/src/main/res/layout/fragment_details.xml

@@ -301,6 +301,56 @@
 			app:constraint_referenced_ids="recyclerView_scrobbling,textView_scrobbling_title,button_scrobbling_more"
 			tools:visibility="visible" />
 
+		<TextView
+			android:id="@+id/textView_related_title"
+			android:layout_width="0dp"
+			android:layout_height="wrap_content"
+			android:layout_marginStart="@dimen/margin_small"
+			android:layout_marginTop="@dimen/margin_small"
+			android:layout_weight="1"
+			android:gravity="center_vertical|start"
+			android:padding="@dimen/grid_spacing"
+			android:singleLine="true"
+			android:text="@string/related_manga"
+			android:textAppearance="@style/TextAppearance.Kotatsu.SectionHeader"
+			app:layout_constraintEnd_toStartOf="@id/button_related_more"
+			app:layout_constraintStart_toStartOf="parent"
+			app:layout_constraintTop_toBottomOf="@id/recyclerView_scrobbling" />
+
+		<Button
+			android:id="@+id/button_related_more"
+			style="@style/Widget.Kotatsu.Button.More"
+			android:layout_width="wrap_content"
+			android:layout_height="wrap_content"
+			android:layout_marginEnd="8dp"
+			android:text="@string/show_all"
+			app:layout_constraintBaseline_toBaselineOf="@id/textView_related_title"
+			app:layout_constraintEnd_toEndOf="parent" />
+
+		<androidx.recyclerview.widget.RecyclerView
+			android:id="@+id/recyclerView_related"
+			android:layout_width="0dp"
+			android:layout_height="wrap_content"
+			android:layout_marginBottom="6dp"
+			android:clipToPadding="false"
+			android:nestedScrollingEnabled="false"
+			android:orientation="horizontal"
+			android:paddingStart="12dp"
+			android:paddingEnd="12dp"
+			app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
+			app:layout_constraintEnd_toEndOf="parent"
+			app:layout_constraintStart_toStartOf="parent"
+			app:layout_constraintTop_toBottomOf="@id/textView_related_title"
+			tools:listitem="@layout/item_manga_grid" />
+
+		<androidx.constraintlayout.widget.Group
+			android:id="@+id/group_related"
+			android:layout_width="wrap_content"
+			android:layout_height="wrap_content"
+			android:visibility="gone"
+			app:constraint_referenced_ids="recyclerView_related,textView_related_title,button_related_more"
+			tools:visibility="visible" />
+
 	</androidx.constraintlayout.widget.ConstraintLayout>
 
 </androidx.core.widget.NestedScrollView>

app/src/main/res/values/dimens.xml

@@ -19,6 +19,7 @@
 	<dimen name="chapter_list_item_height">48dp</dimen>
 	<dimen name="preferred_grid_width">120dp</dimen>
 	<dimen name="small_grid_width">92dp</dimen>
+	<dimen name="smaller_grid_width">102dp</dimen>
 	<dimen name="header_height">48dp</dimen>
 	<dimen name="list_footer_height_inner">36dp</dimen>
 	<dimen name="list_footer_height_outer">48dp</dimen>
@@ -45,6 +46,7 @@
 	<dimen name="dialog_radius">8dp</dimen>
 
 	<dimen name="card_indicator_size">32dp</dimen>
+	<dimen name="card_indicator_size_small">24dp</dimen>
 	<dimen name="card_indicator_offset">8dp</dimen>
 
 	<dimen name="appwidget_corner_radius_inner">8dp</dimen>

app/src/main/res/values/strings.xml

@@ -452,4 +452,5 @@
 	<string name="description">Description</string>
 	<string name="this_month">This month</string>
 	<string name="voice_search">Voice search</string>
+	<string name="related_manga">Related manga</string>
 </resources>