Fuck motion layout

app/src/main/java/eu/kanade/tachiyomi/ui/manga/MangaController.kt

@@ -2,15 +2,10 @@ package eu.kanade.tachiyomi.ui.manga
 
 import android.animation.Animator
 import android.animation.AnimatorListenerAdapter
-import android.animation.AnimatorSet
-import android.animation.ObjectAnimator
 import android.app.Activity
 import android.content.Context
 import android.content.Intent
 import android.graphics.Bitmap
-import android.graphics.Point
-import android.graphics.Rect
-import android.graphics.RectF
 import android.graphics.drawable.BitmapDrawable
 import android.os.Bundle
 import android.view.LayoutInflater
@@ -18,8 +13,6 @@ import android.view.Menu
 import android.view.MenuInflater
 import android.view.MenuItem
 import android.view.View
-import android.view.animation.DecelerateInterpolator
-import android.widget.ImageView
 import android.widget.TextView
 import androidx.annotation.FloatRange
 import androidx.appcompat.app.AppCompatActivity
@@ -31,7 +24,6 @@ import androidx.recyclerview.widget.ConcatAdapter
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import coil.imageLoader
-import coil.loadAny
 import coil.request.ImageRequest
 import com.bluelinelabs.conductor.ControllerChangeHandler
 import com.bluelinelabs.conductor.ControllerChangeType
@@ -85,7 +77,6 @@ import eu.kanade.tachiyomi.ui.manga.chapter.MangaChaptersHeaderAdapter
 import eu.kanade.tachiyomi.ui.manga.chapter.base.BaseChaptersAdapter
 import eu.kanade.tachiyomi.ui.manga.info.MangaInfoButtonsAdapter
 import eu.kanade.tachiyomi.ui.manga.info.MangaInfoHeaderAdapter
-import eu.kanade.tachiyomi.ui.manga.info.MangaInfoItemAdapter
 import eu.kanade.tachiyomi.ui.manga.merged.EditMergedSettingsDialog
 import eu.kanade.tachiyomi.ui.manga.track.TrackItem
 import eu.kanade.tachiyomi.ui.manga.track.TrackSearchDialog
@@ -107,6 +98,7 @@ import eu.kanade.tachiyomi.util.view.snack
 import exh.log.xLogD
 import exh.md.similar.MangaDexSimilarController
 import exh.metadata.metadata.base.FlatMetadata
+import exh.metadata.metadata.base.RaisedSearchMetadata
 import exh.recs.RecommendsController
 import exh.source.MERGED_SOURCE_ID
 import exh.source.getMainSource
@@ -117,7 +109,6 @@ import kotlinx.coroutines.NonCancellable
 import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.onEach
 import kotlinx.coroutines.withContext
-import reactivecircus.flowbinding.android.view.clicks
 import reactivecircus.flowbinding.recyclerview.scrollEvents
 import reactivecircus.flowbinding.swiperefreshlayout.refreshes
 import timber.log.Timber
@@ -192,15 +183,13 @@ class MangaController :
 
     private var mangaInfoAdapter: MangaInfoHeaderAdapter? = null
 
-    // SY >--
-    private var mangaInfoItemAdapter: MangaInfoItemAdapter? = null
-    private var mangaInfoButtonsAdapter: MangaInfoButtonsAdapter? = null
-    private var mangaMetaInfoAdapter: RecyclerView.Adapter<*>? = null
-
-    // SY <--
     private var chaptersHeaderAdapter: MangaChaptersHeaderAdapter? = null
     private var chaptersAdapter: ChaptersAdapter? = null
 
+    // SY -->
+    private var mangaInfoButtonsAdapter: MangaInfoButtonsAdapter? = null
+    // SY <--
+
     // Sheet containing filter/sort/display items.
     private var settingsSheet: ChaptersSettingsSheet? = null
 
@@ -237,8 +226,6 @@ class MangaController :
     private var editMangaDialog: EditMangaDialog? = null
 
     private var editMergedSettingsDialog: EditMergedSettingsDialog? = null
-
-    private var currentAnimator: Animator? = null
     // EXH <--
 
     init {
@@ -298,18 +285,13 @@ class MangaController :
         if (manga == null || source == null) return
 
         // Init RecyclerView and adapter
-        mangaInfoAdapter = MangaInfoHeaderAdapter(this, binding.infoRecycler != null)
+        mangaInfoAdapter = MangaInfoHeaderAdapter(this, fromSource, binding.infoRecycler != null)
         chaptersHeaderAdapter = MangaChaptersHeaderAdapter(this)
         chaptersAdapter = ChaptersAdapter(this, view.context)
         // SY -->
-        val mainSource = presenter.source.getMainSource<MetadataSource<*, *>>()
-        if (mainSource != null) {
-            mangaMetaInfoAdapter = mainSource.getDescriptionAdapter(this)
-        }
         if (!preferences.recommendsInOverflow().get() || smartSearchConfig != null) {
             mangaInfoButtonsAdapter = MangaInfoButtonsAdapter(this)
         }
-        mangaInfoItemAdapter = MangaInfoItemAdapter(this, fromSource, binding.infoRecycler != null)
         // SY <--
 
         // Phone layout
@@ -317,8 +299,6 @@ class MangaController :
             it.adapter = ConcatAdapter(
                 listOfNotNull(
                     mangaInfoAdapter,
-                    mangaMetaInfoAdapter,
-                    mangaInfoItemAdapter,
                     mangaInfoButtonsAdapter,
                     chaptersHeaderAdapter,
                     chaptersAdapter
@@ -346,9 +326,7 @@ class MangaController :
             it.adapter = ConcatAdapter(
                 listOfNotNull(
                     mangaInfoAdapter,
-                    mangaInfoButtonsAdapter,
+                    mangaInfoButtonsAdapter
-                    mangaMetaInfoAdapter,
-                    mangaInfoItemAdapter
                 )
             )
 
@@ -459,11 +437,6 @@ class MangaController :
         chaptersHeaderAdapter = null
         chaptersAdapter = null
         settingsSheet = null
-        // SY -->
-        mangaInfoButtonsAdapter = null
-        mangaInfoItemAdapter = null
-        mangaMetaInfoAdapter = null
-        // SY <--
         addSnackbar?.dismiss()
         updateToolbarTitleAlpha(1F)
         toolbarTextView = null
@@ -559,7 +532,7 @@ class MangaController :
         val mainSource = presenter.source.getMainSource<MetadataSource<*, *>>()
         if (mainSource != null) {
             presenter.meta = flatMetadata.raise(mainSource.metaClass)
-            mangaMetaInfoAdapter?.notifyDataSetChanged()
+            mangaInfoAdapter?.notifyMetaAdapter()
             updateFilterIconState()
         }
     }
@@ -573,13 +546,10 @@ class MangaController :
      * @param manga manga object containing information about manga.
      * @param source the source of the manga.
      */
-    fun onNextMangaInfo(manga: Manga, source: Source) {
+    fun onNextMangaInfo(manga: Manga, source: Source, metadata: RaisedSearchMetadata?) {
         if (manga.initialized) {
             // Update view.
-            mangaInfoAdapter?.update(manga, source)
+            mangaInfoAdapter?.update(manga, source, metadata, presenter.mergedMangaReferences)
-            mangaInfoItemAdapter?.update(manga, source, presenter.meta)
-
-            binding.expandedImage.loadAny(manga)
         } else {
             // Initialize manga.
             fetchMangaInfoFromSource()
@@ -843,110 +813,6 @@ class MangaController :
         presenter.moveMangaToCategories(manga, categories)
     }
 
-    // SY -->
-    fun onThumbnailClick(thumbView: ImageView) {
-        if (!presenter.manga.initialized || presenter.manga.thumbnail_url == null) return
-        currentAnimator?.cancel()
-
-        val startBoundsInt = Rect()
-        val finalBoundsInt = Rect()
-        val globalOffset = Point()
-
-        thumbView.getGlobalVisibleRect(startBoundsInt)
-        binding.root.getGlobalVisibleRect(finalBoundsInt, globalOffset)
-        startBoundsInt.offset(-globalOffset.x, -globalOffset.y)
-        finalBoundsInt.offset(-globalOffset.x, -globalOffset.y)
-
-        val startBounds = RectF(startBoundsInt)
-        val finalBounds = RectF(finalBoundsInt)
-
-        val startScale: Float
-        if ((finalBounds.width() / finalBounds.height() > startBounds.width() / startBounds.height())) {
-            startScale = startBounds.height() / finalBounds.height()
-            val startWidth: Float = startScale * finalBounds.width()
-            val deltaWidth: Float = (startWidth - startBounds.width()) / 2
-            startBounds.left -= deltaWidth.toInt()
-            startBounds.right += deltaWidth.toInt()
-        } else {
-            startScale = startBounds.width() / finalBounds.width()
-            val startHeight: Float = startScale * finalBounds.height()
-            val deltaHeight: Float = (startHeight - startBounds.height()) / 2f
-            startBounds.top -= deltaHeight.toInt()
-            startBounds.bottom += deltaHeight.toInt()
-        }
-        thumbView.alpha = 0f
-        actionFab?.isVisible = false
-        binding.expandedImage.isVisible = true
-
-        binding.expandedImage.pivotX = 0f
-        binding.expandedImage.pivotY = 0f
-
-        currentAnimator = AnimatorSet().apply {
-            play(
-                ObjectAnimator.ofFloat(
-                    binding.expandedImage,
-                    View.X,
-                    startBounds.left,
-                    finalBounds.left
-                )
-            ).apply {
-                with(ObjectAnimator.ofFloat(binding.expandedImage, View.Y, startBounds.top, finalBounds.top))
-                with(ObjectAnimator.ofFloat(binding.expandedImage, View.SCALE_X, startScale, 1f))
-                with(ObjectAnimator.ofFloat(binding.expandedImage, View.SCALE_Y, startScale, 1f))
-            }
-            duration = resources?.getInteger(android.R.integer.config_shortAnimTime)?.toLong() ?: 150L
-            interpolator = DecelerateInterpolator()
-            addListener(
-                object : AnimatorListenerAdapter() {
-                    override fun onAnimationEnd(animation: Animator) {
-                        currentAnimator = null
-                    }
-
-                    override fun onAnimationCancel(animation: Animator) {
-                        currentAnimator = null
-                    }
-                }
-            )
-            start()
-        }
-
-        binding.expandedImage.clicks()
-            .onEach {
-                currentAnimator?.cancel()
-
-                currentAnimator = AnimatorSet().apply {
-                    play(ObjectAnimator.ofFloat(binding.expandedImage, View.X, startBounds.left)).apply {
-                        with(ObjectAnimator.ofFloat(binding.expandedImage, View.Y, startBounds.top))
-                        with(ObjectAnimator.ofFloat(binding.expandedImage, View.SCALE_X, startScale))
-                        with(ObjectAnimator.ofFloat(binding.expandedImage, View.SCALE_Y, startScale))
-                    }
-                    duration = resources?.getInteger(android.R.integer.config_shortAnimTime)?.toLong() ?: 150L
-                    interpolator = DecelerateInterpolator()
-                    addListener(
-                        object : AnimatorListenerAdapter() {
-
-                            override fun onAnimationEnd(animation: Animator) {
-                                thumbView.alpha = 1f
-                                binding.expandedImage.isVisible = false
-                                actionFab?.isVisible = presenter.filteredAndSortedChapters.any { !it.read }
-                                currentAnimator = null
-                            }
-
-                            override fun onAnimationCancel(animation: Animator) {
-                                thumbView.alpha = 1f
-                                binding.expandedImage.isVisible = false
-                                actionFab?.isVisible = presenter.filteredAndSortedChapters.any { !it.read }
-                                currentAnimator = null
-                            }
-                        }
-                    )
-                    start()
-                }
-            }
-            .launchIn(viewScope)
-    }
-    // SY <--
-
     /**
      * Perform a global search using the provided query.
      *

app/src/main/java/eu/kanade/tachiyomi/ui/manga/MangaPresenter.kt

@@ -154,6 +154,8 @@ class MangaPresenter(
 
     var mergedManga = emptyMap<Long, Manga>()
         private set
+    var mergedMangaReferences = emptyList<MergedMangaReference>()
+        private set
 
     var dedupe: Boolean = true
 
@@ -166,6 +168,7 @@ class MangaPresenter(
         // SY -->
         if (source is MergedSource) {
             launchIO { mergedManga = db.getMergedMangas(manga.id!!).executeAsBlocking().associateBy { it.id!! } }
+            launchIO { mergedMangaReferences = db.getMergedMangaReferences(manga.id!!).executeAsBlocking() }
         }
         // SY <--
 
@@ -188,11 +191,13 @@ class MangaPresenter(
                 }
             }
             .subscribeLatestCache({ view, (manga, flatMetadata) ->
-                flatMetadata?.let { metadata ->
+                val mainSource = source.getMainSource<MetadataSource<*, *>>()
-                    view.onNextMetaInfo(metadata)
+                val meta = if (mainSource != null) {
-                }
+                    flatMetadata?.raise(mainSource.metaClass)
+                } else null
+                this.meta = meta
                 // SY <--
-                view.onNextMangaInfo(manga, source)
+                view.onNextMangaInfo(manga, source, meta)
             })
 
         getTrackingObservable()
@@ -383,7 +388,7 @@ class MangaPresenter(
                 .observeOn(AndroidSchedulers.mainThread())
                 .subscribeLatestCache(
                     { view, _ ->
-                        view.onNextMangaInfo(manga, source)
+                        view.onNextMangaInfo(manga, source, meta)
                     }
                 )
         }

app/src/main/java/eu/kanade/tachiyomi/ui/manga/info/MangaInfoHeaderAdapter.kt

@@ -4,11 +4,13 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import androidx.core.view.isVisible
+import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import coil.loadAny
+import coil.target.ImageViewTarget
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
+import eu.davidea.flexibleadapter.FlexibleAdapter
 import eu.kanade.tachiyomi.R
-import eu.kanade.tachiyomi.data.database.DatabaseHelper
 import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.data.track.TrackManager
 import eu.kanade.tachiyomi.databinding.MangaInfoHeaderBinding
@@ -16,38 +18,48 @@ import eu.kanade.tachiyomi.source.Source
 import eu.kanade.tachiyomi.source.SourceManager
 import eu.kanade.tachiyomi.source.model.SManga
 import eu.kanade.tachiyomi.source.online.HttpSource
-import eu.kanade.tachiyomi.source.online.all.MergedSource
+import eu.kanade.tachiyomi.source.online.MetadataSource
 import eu.kanade.tachiyomi.ui.manga.MangaController
+import eu.kanade.tachiyomi.util.lang.launchUI
 import eu.kanade.tachiyomi.util.system.copyToClipboard
+import eu.kanade.tachiyomi.util.view.setChips
 import exh.merged.sql.models.MergedMangaReference
+import exh.metadata.metadata.base.RaisedSearchMetadata
 import exh.source.MERGED_SOURCE_ID
+import exh.source.getMainSource
 import exh.util.SourceTagsUtil
 import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.merge
 import kotlinx.coroutines.flow.onEach
 import reactivecircus.flowbinding.android.view.clicks
 import reactivecircus.flowbinding.android.view.longClicks
-import uy.kohesive.injekt.Injekt
-import uy.kohesive.injekt.api.get
 import uy.kohesive.injekt.injectLazy
 
 class MangaInfoHeaderAdapter(
     private val controller: MangaController,
-    private val isTablet: Boolean
+    private val fromSource: Boolean,
+    private val isTablet: Boolean,
 ) :
     RecyclerView.Adapter<MangaInfoHeaderAdapter.HeaderViewHolder>() {
 
     private val trackManager: TrackManager by injectLazy()
 
     // SY -->
-    private val db: DatabaseHelper by injectLazy()
     private val sourceManager: SourceManager by injectLazy()
 
-    private var mergedMangaReferences: List<MergedMangaReference> = emptyList()
     // SY <--
 
     private var manga: Manga = controller.presenter.manga
     private var source: Source = controller.presenter.source
+
+    // SY -->
+    private var meta: RaisedSearchMetadata? = controller.presenter.meta
+    private var mergedMangaReferences: List<MergedMangaReference> = controller.presenter.mergedMangaReferences
+
+    // SY <--
     private var trackCount: Int = 0
+    private var metaInfoAdapter: RecyclerView.Adapter<*>? = null
+    private var mangaTagsInfoAdapter: NamespaceTagsAdapter = NamespaceTagsAdapter(controller, source)
 
     private lateinit var binding: MangaInfoHeaderBinding
 
@@ -55,6 +67,20 @@ class MangaInfoHeaderAdapter(
 
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): HeaderViewHolder {
         binding = MangaInfoHeaderBinding.inflate(LayoutInflater.from(parent.context), parent, false)
+        // SY -->
+        metaInfoAdapter = source.getMainSource<MetadataSource<*, *>>()?.getDescriptionAdapter(controller)
+        binding.metadataView.isVisible = if (metaInfoAdapter != null) {
+            binding.metadataView.layoutManager = LinearLayoutManager(binding.root.context)
+            binding.metadataView.adapter = metaInfoAdapter
+            true
+        } else {
+            false
+        }
+
+        binding.genreGroups.layoutManager = LinearLayoutManager(binding.root.context)
+        binding.genreGroups.adapter = mangaTagsInfoAdapter
+        // SY <--
+
         return HeaderViewHolder(binding.root)
     }
 
@@ -70,16 +96,16 @@ class MangaInfoHeaderAdapter(
      * @param manga manga object containing information about manga.
      * @param source the source of the manga.
      */
-    fun update(manga: Manga, source: Source) {
+    fun update(manga: Manga, source: Source, meta: RaisedSearchMetadata?, mergedMangaReferences: List<MergedMangaReference>) {
         this.manga = manga
         this.source = source
         // SY -->
-        if (source is MergedSource) {
+        this.meta = meta
-            mergedMangaReferences = db.getMergedMangaReferences(manga.id!!).executeAsBlocking()
+        this.mergedMangaReferences = mergedMangaReferences
-        }
         // SY <--
 
         notifyDataSetChanged()
+        notifyMetaAdapter()
     }
 
     fun setTrackingCount(trackCount: Int) {
@@ -88,14 +114,22 @@ class MangaInfoHeaderAdapter(
         notifyDataSetChanged()
     }
 
+    fun notifyMetaAdapter() {
+        metaInfoAdapter?.notifyDataSetChanged()
+    }
+
     inner class HeaderViewHolder(private val view: View) : RecyclerView.ViewHolder(view) {
         fun bind() {
             // For rounded corners
             binding.mangaCover.clipToOutline = true
+
             // SY -->
-            binding.mangaCover.clicks()
+            mangaTagsInfoAdapter.mItemClickListener = FlexibleAdapter.OnItemClickListener { _, _ ->
-                .onEach { controller.onThumbnailClick(binding.mangaCover) }
+                controller.viewScope.launchUI {
-                .launchIn(controller.viewScope)
+                    toggleMangaInfo()
+                }
+                false
+            }
             // SY <--
 
             binding.btnFavorite.clicks()
@@ -209,13 +243,22 @@ class MangaInfoHeaderAdapter(
                 }
                 .launchIn(controller.viewScope)
 
+            binding.mangaSummaryText.longClicks()
+                .onEach {
+                    controller.activity?.copyToClipboard(
+                        view.context.getString(R.string.description),
+                        binding.mangaSummaryText.text.toString()
+                    )
+                }
+                .launchIn(controller.viewScope)
+
             binding.mangaCover.longClicks()
                 .onEach {
                     showCoverOptionsDialog()
                 }
                 .launchIn(controller.viewScope)
 
-            setMangaInfo(manga, source)
+            setMangaInfo(manga, source, meta)
         }
 
         private fun showCoverOptionsDialog() {
@@ -245,7 +288,7 @@ class MangaInfoHeaderAdapter(
          * @param manga manga object containing information about manga.
          * @param source the source of the manga.
          */
-        private fun setMangaInfo(manga: Manga, source: Source?) {
+        private fun setMangaInfo(manga: Manga, source: Source?, meta: RaisedSearchMetadata?) {
             // Update full title TextView.
             binding.mangaFullTitle.text = if (manga.title.isBlank()) {
                 view.context.getString(R.string.unknown)
@@ -278,7 +321,6 @@ class MangaInfoHeaderAdapter(
                 } else /* SY <-- */ if (mangaSource != null) {
                     text = mangaSource
                     setOnClickListener {
-                        val sourceManager = Injekt.get<SourceManager>()
                         controller.performSearch(sourceManager.getOrStub(source.id).name)
                     }
                 } else {
@@ -305,14 +347,139 @@ class MangaInfoHeaderAdapter(
             setFavoriteButtonState(manga.favorite)
 
             // Set cover if changed.
-            listOf(binding.mangaCover, binding.backdrop).forEach {
+            binding.backdrop.loadAny(manga)
-                it.loadAny(manga)
+            binding.mangaCover.loadAny(manga) {
+                listener(
+                    onSuccess = { request, _ ->
+                        (request.target as? ImageViewTarget)?.drawable?.let { drawable ->
+                            val ratio = drawable.minimumWidth / drawable.minimumHeight.toFloat()
+                            binding.root.getConstraintSet(R.id.end)
+                                ?.setDimensionRatio(R.id.manga_cover, ratio.toString())
                         }
-            if (initialLoad && isTablet) {
+                    }
+                )
+            }
+
+            // Manga info section
+            val hasInfoContent = !manga.description.isNullOrBlank() || !manga.genre.isNullOrBlank()
+            showMangaInfo(hasInfoContent)
+            if (hasInfoContent) {
+                // Update description TextView.
+                binding.mangaSummaryText.text = if (manga.description.isNullOrBlank()) {
+                    view.context.getString(R.string.unknown)
+                } else {
+                    manga.description
+                }
+
+                // SY -->
+                if (manga.description == "meta") {
+                    binding.mangaSummaryText.text = ""
+                    /*binding.mangaInfoToggleLess.updateLayoutParams<ConstraintLayout.LayoutParams> {
+                        topToBottom = -1
+                        bottomToBottom = binding.mangaSummaryText.id
+                    }*/
+                }
+                // SY <--
+
+                // Update genres list
+                if (!manga.genre.isNullOrBlank()) {
+                    binding.mangaGenresTagsCompactChips.setChips(
+                        manga.getGenres(),
+                        controller::performGenreSearch
+                    )
+                    // SY -->
+                    // if (source?.getMainSource<NamespaceSource>() != null) {
+                    setChipsWithNamespace(
+                        manga.genre,
+                        meta
+                    )
+                    // binding.mangaGenresTagsFullChips.isVisible = false
+                    /*} else {
+                        binding.mangaGenresTagsFullChips.setChips(
+                            manga.getGenres(),
+                            controller::performGenreSearch
+                        )
+                        binding.genreGroups.isVisible = false
+                    }*/
+                    // SY <--
+                } else {
+                    binding.mangaGenresTagsCompactChips.isVisible = false
+                    // binding.mangaGenresTagsFullChips.isVisible = false
+                    // SY -->
+                    binding.genreGroups.isVisible = false
+                    // SY <--
+                }
+
+                // Handle showing more or less info
+                merge(
+                    binding.mangaSummaryText.clicks(),
+                    binding.mangaInfoToggleMore.clicks(),
+                    binding.mangaInfoToggleLess.clicks(),
+                    binding.mangaSummarySection.clicks()
+                )
+                    .onEach { toggleMangaInfo() }
+                    .launchIn(controller.viewScope)
+
+                // Expand manga info if navigated from source listing or explicitly set to
+                // (e.g. on tablets)
+                if (initialLoad && (fromSource || isTablet)) {
+                    toggleMangaInfo()
                     initialLoad = false
                     // wrap_content and autoFixTextSize can cause unwanted behaviour this tries to solve it
                     binding.mangaFullTitle.requestLayout()
                 }
+
+                // Refreshes will change the state and it needs to be set to correct state to display correctly
+                if (binding.mangaSummaryText.maxLines == 2) {
+                    binding.mangaSummarySection.transitionToState(R.id.start)
+                } else {
+                    binding.mangaSummarySection.transitionToState(R.id.end)
+                }
+            }
+        }
+
+        private fun showMangaInfo(visible: Boolean) {
+            binding.mangaSummarySection.isVisible = visible
+        }
+
+        private fun toggleMangaInfo() {
+            val isCurrentlyExpanded = binding.mangaSummaryText.maxLines != 2
+
+            if (isCurrentlyExpanded) {
+                binding.mangaSummarySection.transitionToStart()
+            } else {
+                binding.mangaSummarySection.transitionToEnd()
+            }
+
+            binding.mangaSummaryText.maxLines = if (isCurrentlyExpanded) {
+                2
+            } else {
+                Int.MAX_VALUE
+            }
+        }
+
+        private fun setChipsWithNamespace(genre: String?, meta: RaisedSearchMetadata?) {
+            val namespaceTags = when {
+                meta != null -> {
+                    meta.tags
+                        .filterNot { it.type == RaisedSearchMetadata.TAG_TYPE_VIRTUAL }
+                        .groupBy { it.namespace }
+                        .map { (namespace, tags) ->
+                            NamespaceTagsItem(
+                                namespace,
+                                tags.map {
+                                    it.name to it.type
+                                }
+                            )
+                        }
+                }
+                genre != null -> {
+                    listOf(NamespaceTagsItem(null, genre.split(",").map { it.trim() to null }))
+                }
+                else -> emptyList()
+            }
+
+            mangaTagsInfoAdapter.updateDataSet(namespaceTags)
         }
 
         /**

app/src/main/java/eu/kanade/tachiyomi/ui/manga/info/MangaInfoItemAdapter.kt

@@ -1,229 +0,0 @@
-package eu.kanade.tachiyomi.ui.manga.info
-
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import androidx.constraintlayout.widget.ConstraintLayout
-import androidx.core.view.isVisible
-import androidx.core.view.updateLayoutParams
-import androidx.recyclerview.widget.LinearLayoutManager
-import androidx.recyclerview.widget.RecyclerView
-import eu.davidea.flexibleadapter.FlexibleAdapter
-import eu.davidea.flexibleadapter.items.IFlexible
-import eu.kanade.tachiyomi.R
-import eu.kanade.tachiyomi.data.database.models.Manga
-import eu.kanade.tachiyomi.databinding.MangaInfoItemBinding
-import eu.kanade.tachiyomi.source.Source
-import eu.kanade.tachiyomi.source.online.NamespaceSource
-import eu.kanade.tachiyomi.ui.manga.MangaController
-import eu.kanade.tachiyomi.util.system.copyToClipboard
-import exh.metadata.metadata.base.RaisedSearchMetadata
-import exh.metadata.metadata.base.RaisedSearchMetadata.Companion.TAG_TYPE_VIRTUAL
-import exh.source.getMainSource
-import exh.source.isEhBasedSource
-import exh.util.getRaisedTags
-import exh.util.makeSearchChip
-import exh.util.setChipsExtended
-import kotlinx.coroutines.flow.launchIn
-import kotlinx.coroutines.flow.merge
-import kotlinx.coroutines.flow.onEach
-import kotlinx.coroutines.launch
-import reactivecircus.flowbinding.android.view.clicks
-import reactivecircus.flowbinding.android.view.longClicks
-
-class MangaInfoItemAdapter(
-    private val controller: MangaController,
-    private val fromSource: Boolean,
-    private val isTablet: Boolean
-) :
-    RecyclerView.Adapter<MangaInfoItemAdapter.HeaderViewHolder>() {
-
-    private var manga: Manga = controller.presenter.manga
-    private var source: Source = controller.presenter.source
-    private var meta: RaisedSearchMetadata? = controller.presenter.meta
-
-    private lateinit var binding: MangaInfoItemBinding
-
-    private var initialLoad: Boolean = true
-
-    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): HeaderViewHolder {
-        binding = MangaInfoItemBinding.inflate(LayoutInflater.from(parent.context), parent, false)
-        return HeaderViewHolder(binding.root)
-    }
-
-    private var mangaTagsInfoAdapter: FlexibleAdapter<IFlexible<*>>? = FlexibleAdapter(null)
-
-    override fun getItemCount(): Int = 1
-
-    override fun onBindViewHolder(holder: HeaderViewHolder, position: Int) {
-        holder.bind()
-    }
-
-    /**
-     * Update the view with manga information.
-     *
-     * @param manga manga object containing information about manga.
-     * @param source the source of the manga.
-     */
-    fun update(manga: Manga, source: Source, meta: RaisedSearchMetadata?) {
-        this.manga = manga
-        this.source = source
-        this.meta = meta
-
-        notifyDataSetChanged()
-    }
-
-    inner class HeaderViewHolder(private val view: View) : RecyclerView.ViewHolder(view) {
-        fun bind() {
-            binding.mangaSummaryText.longClicks()
-                .onEach {
-                    controller.activity?.copyToClipboard(
-                        view.context.getString(R.string.description),
-                        binding.mangaSummaryText.text.toString()
-                    )
-                }
-                .launchIn(controller.viewScope)
-
-            binding.genreGroups.layoutManager = LinearLayoutManager(itemView.context)
-            binding.genreGroups.adapter = mangaTagsInfoAdapter
-
-            // SY -->
-            mangaTagsInfoAdapter?.mItemClickListener = FlexibleAdapter.OnItemClickListener { _, _ ->
-                controller.viewScope.launch {
-                    toggleMangaInfo()
-                }
-                false
-            }
-            // SY <--
-
-            setMangaInfo(manga, source)
-        }
-
-        /**
-         * Update the view with manga information.
-         *
-         * @param manga manga object containing information about manga.
-         * @param source the source of the manga.
-         */
-        private fun setMangaInfo(manga: Manga, source: Source?) {
-            // Manga info section
-            val hasInfoContent = !manga.description.isNullOrBlank() || !manga.genre.isNullOrBlank()
-            showMangaInfo(hasInfoContent)
-            if (hasInfoContent) {
-                // Update description TextView.
-                binding.mangaSummaryText.text = if (manga.description.isNullOrBlank()) {
-                    view.context.getString(R.string.unknown)
-                } else {
-                    manga.description
-                }
-
-                // SY -->
-                if (binding.mangaSummaryText.text == "meta") {
-                    binding.mangaSummaryText.text = ""
-                    binding.mangaSummaryText.maxLines = 1
-                    binding.mangaInfoToggleLess.updateLayoutParams<ConstraintLayout.LayoutParams> {
-                        topToBottom = -1
-                        bottomToBottom = binding.mangaSummaryText.id
-                    }
-                }
-                // SY <--
-
-                // Update genres list
-                if (!manga.genre.isNullOrBlank()) {
-                    // SY -->
-                    if (source != null && source.getMainSource() is NamespaceSource) {
-                        val metaTags = meta?.tags?.filterNot { it.type == TAG_TYPE_VIRTUAL }?.groupBy { it.namespace }
-                        var namespaceTags: List<NamespaceTagsItem> = emptyList()
-                        if (source.isEhBasedSource() && metaTags != null && metaTags.all { it.key != null }) {
-                            namespaceTags = metaTags
-                                .mapValues { values ->
-                                    values.value.map {
-                                        itemView.context.makeSearchChip(
-                                            it.name,
-                                            controller::performSearch,
-                                            controller::performGlobalSearch,
-                                            source.id,
-                                            it.namespace,
-                                            it.type
-                                        )
-                                    }
-                                }
-                                .map { NamespaceTagsItem(it.key!!, it.value) }
-                        } else {
-                            val genre = manga.getRaisedTags()
-                            if (!genre.isNullOrEmpty()) {
-                                namespaceTags = genre
-                                    .groupBy { it.namespace }
-                                    .mapValues { values ->
-                                        values.value.map {
-                                            itemView.context.makeSearchChip(
-                                                it.name,
-                                                controller::performSearch,
-                                                controller::performGlobalSearch,
-                                                source.id,
-                                                it.namespace
-                                            )
-                                        }
-                                    }
-                                    .map { NamespaceTagsItem(it.key, it.value) }
-                            }
-                        }
-                        mangaTagsInfoAdapter?.updateDataSet(namespaceTags)
-                    }
-                    binding.mangaGenresTagsFullChips.setChipsExtended(manga.getGenres(), controller::performGenreSearch, controller::performGlobalSearch, source?.id ?: 0)
-                    binding.mangaGenresTagsCompactChips.setChipsExtended(manga.getGenres(), controller::performGenreSearch, controller::performGlobalSearch, source?.id ?: 0)
-                    // SY <--
-                } else {
-                    binding.mangaGenresTagsCompactChips.isVisible = false
-                    binding.mangaGenresTagsFullChips.isVisible = false
-                    // SY -->
-                    binding.genreGroups.isVisible = false
-                    // SY <--
-                }
-
-                // Handle showing more or less info
-                merge(
-                    binding.mangaSummarySection.clicks(),
-                    binding.mangaSummaryText.clicks(),
-                    binding.mangaInfoToggleMore.clicks(),
-                    binding.mangaInfoToggleLess.clicks()
-                )
-                    .onEach { toggleMangaInfo() }
-                    .launchIn(controller.viewScope)
-
-                // Expand manga info if navigated from source listing
-                if (initialLoad && (fromSource || isTablet)) {
-                    toggleMangaInfo()
-                    initialLoad = false
-                }
-            }
-        }
-
-        private fun showMangaInfo(visible: Boolean) {
-            binding.mangaSummarySection.isVisible = visible
-        }
-
-        private fun toggleMangaInfo() {
-            val isCurrentlyExpanded = binding.mangaSummaryText.maxLines != 2 /* SY --> */ && binding.mangaSummaryText.maxLines != 1 /* SY <-- */
-
-            binding.mangaInfoToggleMoreScrim.isVisible = isCurrentlyExpanded
-            binding.mangaInfoToggleMore.isVisible = isCurrentlyExpanded
-            binding.mangaInfoToggleLess.isVisible = !isCurrentlyExpanded
-
-            binding.mangaSummaryText.maxLines = if (isCurrentlyExpanded) {
-                /* SY --> */ if (binding.mangaSummaryText.text.isBlank()) 1 else /* SY <-- */ 2
-            } else {
-                Int.MAX_VALUE
-            }
-
-            binding.mangaGenresTagsCompact.isVisible = isCurrentlyExpanded
-            // SY -->
-            if (source.getMainSource() !is NamespaceSource) {
-                binding.mangaGenresTagsFullChips.isVisible = !isCurrentlyExpanded
-            } else {
-                binding.genreGroups.isVisible = !isCurrentlyExpanded
-            }
-            // SY <--
-        }
-    }
-}

app/src/main/java/eu/kanade/tachiyomi/ui/manga/info/NamespaceTagsAdapter.kt

@@ -0,0 +1,8 @@
+package eu.kanade.tachiyomi.ui.manga.info
+
+import eu.davidea.flexibleadapter.FlexibleAdapter
+import eu.kanade.tachiyomi.source.Source
+import eu.kanade.tachiyomi.ui.manga.MangaController
+
+class NamespaceTagsAdapter(val controller: MangaController, val source: Source) :
+    FlexibleAdapter<NamespaceTagsItem>(null, controller, true)

app/src/main/java/eu/kanade/tachiyomi/ui/manga/info/NamespaceTagsHolder.kt

@@ -0,0 +1,40 @@
+package eu.kanade.tachiyomi.ui.manga.info
+
+import android.view.View
+import com.google.android.material.chip.Chip
+import eu.davidea.viewholders.FlexibleViewHolder
+import eu.kanade.tachiyomi.databinding.MangaInfoGenreGroupingBinding
+import exh.util.makeSearchChip
+
+class NamespaceTagsHolder(
+    view: View,
+    val adapter: NamespaceTagsAdapter
+) : FlexibleViewHolder(view, adapter) {
+    val binding = MangaInfoGenreGroupingBinding.bind(view)
+
+    fun bind(item: NamespaceTagsItem) {
+        binding.namespace.removeAllViews()
+        val namespace = item.namespace
+        if (namespace != null) {
+            binding.namespace.addView(
+                Chip(binding.root.context).apply {
+                    text = namespace
+                }
+            )
+        }
+
+        binding.tags.removeAllViews()
+        item.tags.map { (tag, type) ->
+            binding.root.context.makeSearchChip(
+                tag,
+                adapter.controller::performSearch,
+                adapter.controller::performGlobalSearch,
+                adapter.source.id,
+                namespace,
+                type
+            )
+        }.forEach {
+            binding.tags.addView(it)
+        }
+    }
+}

app/src/main/java/eu/kanade/tachiyomi/ui/manga/info/NamespaceTagsItem.kt

@@ -2,46 +2,43 @@ package eu.kanade.tachiyomi.ui.manga.info
 
 import android.view.View
 import androidx.recyclerview.widget.RecyclerView
-import com.google.android.material.chip.Chip
-import com.google.android.material.chip.ChipGroup
 import eu.davidea.flexibleadapter.FlexibleAdapter
 import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
 import eu.davidea.flexibleadapter.items.IFlexible
-import eu.davidea.viewholders.FlexibleViewHolder
 import eu.kanade.tachiyomi.R
 
-open class NamespaceTagsItem(val namespace: String?, val tags: List<Chip>) : AbstractFlexibleItem<NamespaceTagsItem.Holder>() {
+class NamespaceTagsItem(val namespace: String?, val tags: List<Pair<String, Int?>>) :
+    AbstractFlexibleItem<NamespaceTagsHolder>() {
 
     override fun getLayoutRes(): Int {
         return R.layout.manga_info_genre_grouping
     }
 
-    override fun createViewHolder(view: View, adapter: FlexibleAdapter<IFlexible<RecyclerView.ViewHolder>>): Holder {
+    override fun createViewHolder(view: View, adapter: FlexibleAdapter<IFlexible<RecyclerView.ViewHolder>>): NamespaceTagsHolder {
-        return Holder(view, adapter)
+        return NamespaceTagsHolder(view, adapter as NamespaceTagsAdapter)
     }
 
-    override fun bindViewHolder(adapter: FlexibleAdapter<IFlexible<RecyclerView.ViewHolder>>, holder: Holder, position: Int, payloads: List<Any?>?) {
+    override fun bindViewHolder(
-        val namespaceChip = Chip(holder.itemView.context)
+        adapter: FlexibleAdapter<IFlexible<RecyclerView.ViewHolder>>,
-        namespaceChip.text = namespace ?: holder.itemView.context.getString(R.string.unknown)
+        holder: NamespaceTagsHolder,
-        holder.namespaceChipGroup.addView(namespaceChip)
+        position: Int,
-
+        payloads: List<Any?>?
-        tags.forEach {
+    ) {
-            holder.tagsChipGroup.addView(it)
+        holder.bind(this)
-        }
     }
 
     override fun equals(other: Any?): Boolean {
         if (this === other) return true
         if (javaClass != other?.javaClass) return false
-        return namespace == (other as NamespaceTagsItem).namespace
+
+        other as NamespaceTagsItem
+
+        if (namespace != other.namespace) return false
+
+        return true
     }
 
     override fun hashCode(): Int {
         return namespace.hashCode()
     }
-
-    class Holder(view: View, adapter: FlexibleAdapter<*>) : FlexibleViewHolder(view, adapter) {
-        val namespaceChipGroup: ChipGroup = itemView.findViewById(R.id.namespace)
-        val tagsChipGroup: ChipGroup = itemView.findViewById(R.id.tags)
-    }
 }

app/src/main/java/eu/kanade/tachiyomi/util/lang/DateExtensions.kt

@@ -122,5 +122,3 @@ fun Date.toRelativeString(
         else -> dateFormat.format(this)
     }
 }
-
-

app/src/main/java/exh/util/SourceTagsUtil.kt

@@ -12,7 +12,12 @@ import exh.source.nHentaiSourceIds
 import java.util.Locale
 
 object SourceTagsUtil {
-    fun getWrappedTag(sourceId: Long, namespace: String? = null, tag: String? = null, fullTag: String? = null): String? {
+    fun getWrappedTag(
+        sourceId: Long?,
+        namespace: String? = null,
+        tag: String? = null,
+        fullTag: String? = null
+    ): String? {
         return if (sourceId == EXH_SOURCE_ID || sourceId == EH_SOURCE_ID || sourceId in nHentaiSourceIds || sourceId in hitomiSourceIds) {
             val parsed = when {
                 fullTag != null -> parseTag(fullTag)

app/src/main/java/exh/util/ViewExtensions.kt

@@ -24,7 +24,14 @@ fun ChipGroup.setChipsExtended(items: List<String>?, onClick: (item: String) ->
     }
 }
 
-fun Context.makeSearchChip(item: String, onClick: (item: String) -> Unit = {}, onLongClick: (item: String) -> Unit = {}, sourceId: Long, namespace: String? = null, type: Int? = null): Chip {
+fun Context.makeSearchChip(
+    item: String,
+    onClick: (item: String) -> Unit = {},
+    onLongClick: (item: String) -> Unit = {},
+    sourceId: Long,
+    namespace: String? = null,
+    type: Int? = null
+): Chip {
     return Chip(this).apply {
         text = item
         val search = if (namespace != null) {

app/src/main/res/layout-sw720dp/manga_controller.xml

@@ -74,10 +74,4 @@
         app:fastScrollerBubbleEnabled="false"
         tools:visibility="visible" />
 
-    <ImageView
-        android:id="@+id/expanded_image"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:visibility="invisible" />
-
 </androidx.coordinatorlayout.widget.CoordinatorLayout>

app/src/main/res/layout-sw720dp/manga_info_header.xml

@@ -0,0 +1,317 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.motion.widget.MotionLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    app:layoutDescription="@xml/manga_info_header_scene_sw720dp"
+    tools:context=".ui.browse.source.browse.BrowseSourceController">
+
+    <ImageView
+        android:id="@+id/backdrop"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:layout_marginBottom="-32dp"
+        android:alpha="0.2"
+        android:scaleType="centerCrop"
+        app:layout_constraintBottom_toBottomOf="@+id/manga_cover"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        tools:background="@mipmap/ic_launcher"
+        tools:ignore="ContentDescription" />
+
+    <View
+        android:id="@+id/backdrop_overlay"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:alpha="1"
+        android:background="@drawable/manga_info_gradient"
+        android:backgroundTint="?android:attr/colorBackground"
+        app:layout_constraintBottom_toBottomOf="@+id/backdrop"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <ImageView
+        android:id="@+id/manga_cover"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:layout_marginStart="@dimen/tablet_horizontal_cover_margin"
+        android:layout_marginTop="32dp"
+        android:layout_marginEnd="@dimen/tablet_horizontal_cover_margin"
+        android:background="@drawable/rounded_rectangle"
+        android:contentDescription="@string/description_cover"
+        android:scaleType="centerCrop"
+        app:layout_constraintDimensionRatio="w,3:2"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        tools:src="@mipmap/ic_launcher" />
+
+    <LinearLayout
+        android:id="@+id/manga_detail"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="16dp"
+        android:layout_marginTop="-8dp"
+        android:layout_marginEnd="16dp"
+        android:gravity="center_horizontal"
+        android:orientation="vertical"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/backdrop">
+
+        <TextView
+            android:id="@+id/manga_full_title"
+            style="@style/TextAppearance.Medium.Title"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="4dp"
+            android:gravity="center"
+            android:text="@string/manga_info_full_title_label"
+            android:textIsSelectable="false" />
+
+        <TextView
+            android:id="@+id/manga_author"
+            style="@style/TextAppearance.Regular.Body1.Secondary"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:textAlignment="center"
+            android:textIsSelectable="false"
+            tools:text="Author" />
+
+        <TextView
+            android:id="@+id/manga_artist"
+            style="@style/TextAppearance.Regular.Body1.Secondary"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="4dp"
+            android:textIsSelectable="false"
+            tools:text="Artist" />
+
+        <LinearLayout
+            android:id="@+id/manga_status_row"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content">
+
+            <TextView
+                android:id="@+id/manga_status"
+                style="@style/TextAppearance.Regular.Body1.Secondary"
+                android:layout_width="wrap_content"
+                android:layout_height="match_parent"
+                android:ellipsize="end"
+                android:maxLines="1"
+                android:textIsSelectable="false"
+                tools:text="Status" />
+
+            <TextView
+                style="@style/TextAppearance.Regular.Body1.Secondary"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginStart="4dp"
+                android:layout_marginEnd="4dp"
+                android:text="•"
+                android:textIsSelectable="false"
+                tools:ignore="HardcodedText" />
+
+            <TextView
+                android:id="@+id/manga_source"
+                style="@style/TextAppearance.Regular.Body1.Secondary"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:ellipsize="end"
+                android:maxLines="1"
+                android:textIsSelectable="false"
+                tools:text="Source" />
+
+        </LinearLayout>
+
+    </LinearLayout>
+
+    <LinearLayout
+        android:id="@+id/manga_actions"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="16dp"
+        android:layout_marginTop="8dp"
+        android:layout_marginEnd="16dp"
+        android:orientation="horizontal"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/manga_detail">
+
+        <com.google.android.material.button.MaterialButton
+            android:id="@+id/btn_favorite"
+            style="@style/Widget.Tachiyomi.Button.ActionButton"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:text="@string/add_to_library"
+            app:icon="@drawable/ic_favorite_border_24dp" />
+
+        <com.google.android.material.button.MaterialButton
+            android:id="@+id/btn_tracking"
+            style="@style/Widget.Tachiyomi.Button.ActionButton"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:text="@string/manga_tracking_tab"
+            android:visibility="gone"
+            app:icon="@drawable/ic_sync_24dp"
+            tools:visibility="visible" />
+
+        <com.google.android.material.button.MaterialButton
+            android:id="@+id/btn_webview"
+            style="@style/Widget.Tachiyomi.Button.ActionButton"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:text="@string/action_web_view"
+            android:visibility="gone"
+            app:icon="@drawable/ic_public_24dp"
+            tools:visibility="visible" />
+
+        <com.google.android.material.button.MaterialButton
+            android:id="@+id/btn_merge"
+            style="@style/Widget.Tachiyomi.Button.ActionButton"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:text="@string/merge"
+            android:visibility="gone"
+            app:icon="@drawable/ic_merge_type_24dp"
+            tools:visibility="visible" />
+
+    </LinearLayout>
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/metadata_view"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:visibility="gone"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/manga_actions"
+        tools:visibility="gone" />
+
+    <androidx.constraintlayout.motion.widget.MotionLayout
+        android:id="@+id/manga_summary_section"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="8dp"
+        app:layoutDescription="@xml/manga_summary_section_scene"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/metadata_view">
+
+        <TextView
+            android:id="@+id/manga_summary_text"
+            style="@style/TextAppearance.Regular.Body1.Secondary"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="16dp"
+            android:layout_marginTop="8dp"
+            android:layout_marginEnd="16dp"
+            android:clickable="true"
+            android:focusable="true"
+            android:maxLines="2"
+            android:textIsSelectable="false"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/manga_cover"
+            tools:text="Collapsed summary content Collapsed summary content Collapsed summary content Collapsed summary content Collapsed summary content Collapsed summary content" />
+
+        <View
+            android:id="@+id/manga_info_toggle_more_scrim"
+            android:layout_width="20dp"
+            android:layout_height="0dp"
+            android:background="@drawable/manga_info_more_gradient"
+            android:backgroundTint="?android:attr/colorBackground"
+            app:layout_constraintBottom_toBottomOf="@+id/manga_info_toggle_more"
+            app:layout_constraintEnd_toStartOf="@+id/manga_info_toggle_more"
+            app:layout_constraintTop_toTopOf="@+id/manga_info_toggle_more" />
+
+        <com.google.android.material.button.MaterialButton
+            android:id="@+id/manga_info_toggle_more"
+            style="@style/Widget.Tachiyomi.Button.InlineButton"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:paddingStart="8dp"
+            android:paddingEnd="16dp"
+            android:text="@string/manga_info_expand"
+            android:textAlignment="viewEnd"
+            app:layout_constraintBottom_toBottomOf="@+id/manga_summary_text"
+            app:layout_constraintEnd_toEndOf="parent" />
+
+        <com.google.android.material.button.MaterialButton
+            android:id="@+id/manga_info_toggle_less"
+            style="@style/Widget.Tachiyomi.Button.InlineButton"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:paddingStart="8dp"
+            android:paddingEnd="16dp"
+            android:text="@string/manga_info_collapse"
+            android:textAlignment="viewEnd"
+            android:visibility="gone"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/manga_summary_text"
+            tools:visibility="gone" />
+
+        <HorizontalScrollView
+            android:id="@+id/manga_genres_tags_compact"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:requiresFadingEdge="horizontal"
+            android:scrollbars="none"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/manga_summary_text">
+
+            <com.google.android.material.chip.ChipGroup
+                android:id="@+id/manga_genres_tags_compact_chips"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:paddingStart="16dp"
+                android:paddingTop="8dp"
+                android:paddingEnd="16dp"
+                android:paddingBottom="8dp"
+                app:chipSpacingHorizontal="4dp"
+                app:singleLine="true" />
+
+        </HorizontalScrollView>
+
+        <!--<com.google.android.material.chip.ChipGroup
+            android:id="@+id/manga_genres_tags_full_chips"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="16dp"
+            android:layout_marginEnd="16dp"
+            android:paddingTop="8dp"
+            android:paddingBottom="8dp"
+            android:visibility="gone"
+            app:chipSpacingHorizontal="4dp"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/manga_info_toggle_less"
+            tools:visibility="gone" />-->
+
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/genre_groups"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="16dp"
+            android:layout_marginEnd="16dp"
+            android:paddingTop="8dp"
+            android:paddingBottom="8dp"
+            android:visibility="gone"
+            android:nestedScrollingEnabled="false"
+            tools:listitem="@layout/manga_info_genre_grouping"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/manga_info_toggle_less"/>
+
+    </androidx.constraintlayout.motion.widget.MotionLayout>
+
+</androidx.constraintlayout.motion.widget.MotionLayout>

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

@@ -48,10 +48,4 @@
         android:layout_gravity="bottom"
         app:layout_dodgeInsetEdges="bottom" />
 
-    <ImageView
-        android:id="@+id/expanded_image"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:visibility="invisible" />
-
 </androidx.coordinatorlayout.widget.CoordinatorLayout>

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

@@ -1,72 +1,68 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.constraintlayout.motion.widget.MotionLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:orientation="vertical"
+    app:layoutDescription="@xml/manga_info_header_scene"
     tools:context=".ui.browse.source.browse.BrowseSourceController">
 
-    <androidx.constraintlayout.widget.ConstraintLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content">
-
     <ImageView
         android:id="@+id/backdrop"
         android:layout_width="0dp"
         android:layout_height="0dp"
-            android:layout_marginBottom="44dp"
+        android:layout_marginBottom="-8dp"
         android:alpha="0.2"
         android:scaleType="centerCrop"
-            app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintBottom_toBottomOf="@+id/manga_cover"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent"
-            tools:background="@mipmap/ic_launcher" />
+        tools:background="@mipmap/ic_launcher"
+        tools:ignore="ContentDescription" />
 
     <View
         android:id="@+id/backdrop_overlay"
         android:layout_width="match_parent"
         android:layout_height="160dp"
-            android:layout_marginBottom="44dp"
         android:background="@drawable/manga_info_gradient"
         android:backgroundTint="?android:attr/colorBackground"
-            app:layout_constraintBottom_toBottomOf="parent" />
+        app:layout_constraintBottom_toBottomOf="@+id/backdrop" />
 
-        <LinearLayout
+    <ImageView
-            android:id="@+id/manga_info"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:orientation="horizontal"
-            android:paddingStart="16dp"
-            android:paddingTop="48dp"
-            android:paddingEnd="16dp"
-            android:paddingBottom="8dp"
-            app:layout_constraintTop_toTopOf="parent">
-
-            <eu.kanade.tachiyomi.ui.manga.info.MangaCoverImageView
         android:id="@+id/manga_cover"
-                android:layout_width="match_parent"
+        android:layout_width="100dp"
-                android:layout_height="wrap_content"
+        android:layout_height="0dp"
+        android:layout_marginStart="16dp"
+        android:layout_marginTop="48dp"
         android:background="@drawable/rounded_rectangle"
         android:contentDescription="@string/description_cover"
         android:maxWidth="100dp"
         android:scaleType="centerCrop"
+        app:layout_constraintDimensionRatio="w,3:2"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        tools:layout_height="133dp"
         tools:src="@mipmap/ic_launcher" />
 
     <LinearLayout
-                android:layout_width="wrap_content"
+        android:id="@+id/manga_detail"
+        android:layout_width="0dp"
         android:layout_height="wrap_content"
-                android:layout_gravity="bottom"
         android:layout_marginStart="16dp"
-                android:layout_marginBottom="16dp"
+        android:layout_marginEnd="16dp"
-                android:orientation="vertical">
+        android:orientation="vertical"
+        app:layout_constraintBottom_toBottomOf="@+id/manga_cover"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toEndOf="@+id/manga_cover">
 
         <TextView
             android:id="@+id/manga_full_title"
             style="@style/TextAppearance.Medium.Title"
-                    android:layout_width="wrap_content"
+            android:layout_width="match_parent"
             android:layout_height="60sp"
+            android:layout_marginBottom="4dp"
             android:gravity="bottom"
             android:text="@string/manga_info_full_title_label"
             android:textIsSelectable="false"
@@ -80,7 +76,6 @@
             style="@style/TextAppearance.Regular.Body1.Secondary"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-                    android:layout_marginTop="4dp"
             android:textIsSelectable="false"
             tools:text="Author" />
 
@@ -93,6 +88,7 @@
             tools:text="Artist" />
 
         <LinearLayout
+            android:id="@+id/manga_status_row"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_marginTop="4dp">
@@ -131,31 +127,33 @@
 
     </LinearLayout>
 
-        </LinearLayout>
+    <LinearLayout
+        android:id="@+id/manga_actions"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/backdrop">
 
         <com.google.android.material.button.MaterialButton
             android:id="@+id/btn_favorite"
             style="@style/Widget.Tachiyomi.Button.ActionButton"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
-            android:layout_marginStart="16dp"
+            android:layout_weight="1"
             android:text="@string/add_to_library"
-            app:icon="@drawable/ic_favorite_border_24dp"
+            app:icon="@drawable/ic_favorite_border_24dp" />
-            app:layout_constraintEnd_toStartOf="@+id/btn_tracking"
-            app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@+id/manga_info" />
 
         <com.google.android.material.button.MaterialButton
             android:id="@+id/btn_tracking"
             style="@style/Widget.Tachiyomi.Button.ActionButton"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
+            android:layout_weight="1"
             android:text="@string/manga_tracking_tab"
             android:visibility="gone"
             app:icon="@drawable/ic_sync_24dp"
-            app:layout_constraintEnd_toStartOf="@+id/btn_webview"
-            app:layout_constraintStart_toEndOf="@+id/btn_favorite"
-            app:layout_constraintTop_toBottomOf="@+id/manga_info"
             tools:visibility="visible" />
 
         <com.google.android.material.button.MaterialButton
@@ -163,29 +161,150 @@
             style="@style/Widget.Tachiyomi.Button.ActionButton"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
+            android:layout_weight="1"
             android:text="@string/action_web_view"
             android:visibility="gone"
             app:icon="@drawable/ic_public_24dp"
-            app:layout_constraintEnd_toStartOf="@+id/btn_merge"
-            app:layout_constraintStart_toEndOf="@+id/btn_tracking"
-            app:layout_constraintTop_toBottomOf="@+id/manga_info"
             tools:visibility="visible" />
 
-
         <com.google.android.material.button.MaterialButton
             android:id="@+id/btn_merge"
             style="@style/Widget.Tachiyomi.Button.ActionButton"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
-            android:layout_marginEnd="16dp"
+            android:layout_weight="1"
             android:text="@string/merge"
             android:visibility="gone"
             app:icon="@drawable/ic_merge_type_24dp"
-            app:layout_constraintEnd_toEndOf="parent"
-            app:layout_constraintStart_toEndOf="@+id/btn_webview"
-            app:layout_constraintTop_toBottomOf="@+id/manga_info"
             tools:visibility="visible" />
 
-    </androidx.constraintlayout.widget.ConstraintLayout>
-
     </LinearLayout>
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/metadata_view"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:visibility="gone"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/manga_actions"
+        tools:visibility="gone" />
+
+    <androidx.constraintlayout.motion.widget.MotionLayout
+        android:id="@+id/manga_summary_section"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        app:layoutDescription="@xml/manga_summary_section_scene"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/metadata_view">
+
+        <TextView
+            android:id="@+id/manga_summary_text"
+            style="@style/TextAppearance.Regular.Body1.Secondary"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="16dp"
+            android:layout_marginTop="8dp"
+            android:layout_marginEnd="16dp"
+            android:clickable="true"
+            android:focusable="true"
+            android:maxLines="2"
+            android:textIsSelectable="false"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/manga_cover"
+            tools:text="Collapsed summary content Collapsed summary content Collapsed summary content Collapsed summary content Collapsed summary content Collapsed summary content" />
+
+        <View
+            android:id="@+id/manga_info_toggle_more_scrim"
+            android:layout_width="20dp"
+            android:layout_height="0dp"
+            android:background="@drawable/manga_info_more_gradient"
+            android:backgroundTint="?android:attr/colorBackground"
+            app:layout_constraintBottom_toBottomOf="@+id/manga_info_toggle_more"
+            app:layout_constraintEnd_toStartOf="@+id/manga_info_toggle_more"
+            app:layout_constraintTop_toTopOf="@+id/manga_info_toggle_more" />
+
+        <com.google.android.material.button.MaterialButton
+            android:id="@+id/manga_info_toggle_more"
+            style="@style/Widget.Tachiyomi.Button.InlineButton"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:paddingStart="8dp"
+            android:paddingEnd="16dp"
+            android:text="@string/manga_info_expand"
+            android:textAlignment="viewEnd"
+            app:layout_constraintBottom_toBottomOf="@+id/manga_summary_text"
+            app:layout_constraintEnd_toEndOf="parent" />
+
+        <com.google.android.material.button.MaterialButton
+            android:id="@+id/manga_info_toggle_less"
+            style="@style/Widget.Tachiyomi.Button.InlineButton"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:paddingStart="8dp"
+            android:paddingEnd="16dp"
+            android:text="@string/manga_info_collapse"
+            android:textAlignment="viewEnd"
+            android:visibility="gone"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/manga_summary_text"
+            tools:visibility="gone" />
+
+        <HorizontalScrollView
+            android:id="@+id/manga_genres_tags_compact"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:requiresFadingEdge="horizontal"
+            android:scrollbars="none"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/manga_summary_text">
+
+            <com.google.android.material.chip.ChipGroup
+                android:id="@+id/manga_genres_tags_compact_chips"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:paddingStart="16dp"
+                android:paddingTop="8dp"
+                android:paddingEnd="16dp"
+                android:paddingBottom="8dp"
+                app:chipSpacingHorizontal="4dp"
+                app:singleLine="true" />
+
+        </HorizontalScrollView>
+
+        <!--<com.google.android.material.chip.ChipGroup
+            android:id="@+id/manga_genres_tags_full_chips"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="16dp"
+            android:layout_marginEnd="16dp"
+            android:paddingTop="8dp"
+            android:paddingBottom="8dp"
+            android:visibility="gone"
+            app:chipSpacingHorizontal="4dp"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/manga_info_toggle_less"
+            tools:visibility="gone" />-->
+
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/genre_groups"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="16dp"
+            android:layout_marginEnd="16dp"
+            android:paddingTop="8dp"
+            android:paddingBottom="8dp"
+            android:visibility="gone"
+            android:nestedScrollingEnabled="false"
+            tools:listitem="@layout/manga_info_genre_grouping"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/manga_info_toggle_less"/>
+
+    </androidx.constraintlayout.motion.widget.MotionLayout>
+
+</androidx.constraintlayout.motion.widget.MotionLayout>

app/src/main/res/xml/manga_info_header_scene.xml

@@ -0,0 +1,158 @@
+<?xml version="1.0" encoding="utf-8"?>
+<MotionScene xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:motion="http://schemas.android.com/apk/res-auto">
+
+    <Transition
+        motion:constraintSetEnd="@+id/end"
+        motion:constraintSetStart="@id/start"
+        motion:duration="@android:integer/config_mediumAnimTime">
+        <KeyFrameSet></KeyFrameSet>
+        <OnClick motion:targetId="@+id/manga_cover" />
+    </Transition>
+
+    <ConstraintSet android:id="@+id/start">
+        <Constraint
+            android:id="@+id/metadata_view"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="8dp"
+            motion:layout_constraintEnd_toEndOf="parent"
+            motion:layout_constraintStart_toStartOf="parent"
+            motion:layout_constraintTop_toBottomOf="@id/manga_actions"
+            motion:visibilityMode="ignore" />
+        <Constraint
+            android:id="@+id/manga_summary_section"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="8dp"
+            motion:layout_constraintEnd_toEndOf="parent"
+            motion:layout_constraintStart_toStartOf="parent"
+            motion:layout_constraintTop_toBottomOf="@id/metadata_view"
+            motion:visibilityMode="ignore" />
+        <Constraint
+            motion:layout_constraintEnd_toEndOf="parent"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            motion:layout_constraintTop_toBottomOf="@id/backdrop"
+            motion:layout_constraintStart_toStartOf="parent"
+            android:id="@+id/manga_actions"
+            android:layout_marginStart="16dp"
+            android:layout_marginEnd="16dp" />
+    </ConstraintSet>
+
+    <ConstraintSet android:id="@+id/end">
+        <Constraint
+            android:id="@+id/backdrop"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            android:layout_marginBottom="-8dp"
+            android:alpha="0"
+            motion:layout_constraintBottom_toBottomOf="@+id/manga_cover"
+            motion:layout_constraintEnd_toEndOf="parent"
+            motion:layout_constraintStart_toStartOf="parent"
+            motion:layout_constraintTop_toTopOf="parent"
+            motion:transitionEasing="cubic(0,1,0,1)" />
+        <Constraint
+            android:id="@+id/backdrop_overlay"
+            android:layout_width="match_parent"
+            android:layout_height="160dp"
+            android:layout_marginBottom="-16dp"
+            android:alpha="0"
+            motion:layout_constraintBottom_toBottomOf="@+id/backdrop"
+            motion:transitionEasing="cubic(0,1,0,1)" />
+        <Constraint
+            android:id="@+id/manga_cover"
+            android:layout_marginStart="0dp"
+            android:layout_marginTop="0dp"
+            motion:layout_constraintDimensionRatio="2:3"
+            motion:layout_constraintEnd_toEndOf="parent"
+            motion:layout_constraintStart_toStartOf="parent"
+            motion:layout_constraintTop_toTopOf="parent" />
+        <Constraint
+            android:id="@+id/btn_favorite"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="8dp"
+            motion:layout_constraintEnd_toStartOf="@+id/btn_tracking"
+            motion:layout_constraintHorizontal_bias="0.5"
+            motion:layout_constraintStart_toStartOf="parent"
+            motion:layout_constraintTop_toBottomOf="@id/manga_detail"
+            android:layout_marginStart="16dp" />
+        <Constraint
+            android:id="@+id/manga_detail"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="16dp"
+            android:layout_marginTop="24dp"
+            android:layout_marginEnd="16dp"
+            motion:layout_constraintEnd_toEndOf="parent"
+            motion:layout_constraintStart_toStartOf="parent"
+            motion:layout_constraintTop_toBottomOf="@id/manga_cover" />
+        <Constraint
+            android:id="@+id/btn_tracking"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            motion:layout_constraintEnd_toStartOf="@+id/btn_webview"
+            motion:layout_constraintHorizontal_bias="0.5"
+            motion:layout_constraintStart_toEndOf="@+id/btn_favorite"
+            motion:layout_constraintTop_toTopOf="@+id/btn_favorite"
+            motion:visibilityMode="ignore" />
+        <Constraint
+            android:id="@+id/btn_tracking"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:visibility="visible"
+            motion:layout_constraintEnd_toStartOf="@+id/btn_webview"
+            motion:layout_constraintHorizontal_bias="0.5"
+            motion:layout_constraintStart_toEndOf="@+id/btn_favorite"
+            motion:layout_constraintTop_toTopOf="@+id/btn_favorite"
+            motion:visibilityMode="ignore" />
+        <Constraint
+            android:id="@+id/btn_webview"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            motion:layout_constraintEnd_toEndOf="parent"
+            motion:layout_constraintHorizontal_bias="0.5"
+            motion:layout_constraintStart_toEndOf="@+id/btn_tracking"
+            motion:layout_constraintTop_toTopOf="@+id/btn_favorite"
+            motion:visibilityMode="ignore" />
+        <Constraint
+            android:id="@+id/btn_merge"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            motion:layout_constraintEnd_toEndOf="parent"
+            motion:layout_constraintHorizontal_bias="0.5"
+            motion:layout_constraintStart_toEndOf="@+id/btn_webview"
+            motion:layout_constraintTop_toTopOf="@+id/btn_favorite"
+            motion:visibilityMode="ignore"
+            android:layout_marginEnd="16dp" />
+        <Constraint
+            android:id="@+id/metadata_view"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="8dp"
+            motion:layout_constraintEnd_toEndOf="parent"
+            motion:layout_constraintStart_toStartOf="parent"
+            motion:layout_constraintTop_toBottomOf="@id/manga_actions"
+            motion:visibilityMode="ignore" />
+        <Constraint
+            android:id="@+id/manga_summary_section"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="8dp"
+            motion:layout_constraintEnd_toEndOf="parent"
+            motion:layout_constraintStart_toStartOf="parent"
+            motion:layout_constraintTop_toBottomOf="@id/metadata_view"
+            motion:visibilityMode="ignore" />
+        <Constraint
+            android:id="@+id/manga_actions"
+            motion:layout_constraintEnd_toEndOf="parent"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            motion:layout_constraintTop_toBottomOf="@id/manga_detail"
+            motion:layout_constraintStart_toStartOf="parent"
+            android:layout_marginTop="8dp"
+            android:layout_marginStart="16dp"
+            android:layout_marginEnd="16dp" />
+    </ConstraintSet>
+</MotionScene>

app/src/main/res/xml/manga_info_header_scene_sw720dp.xml

@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="utf-8"?>
+<MotionScene xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:motion="http://schemas.android.com/apk/res-auto">
+
+    <Transition
+        motion:constraintSetEnd="@+id/end"
+        motion:constraintSetStart="@id/start"
+        motion:duration="@android:integer/config_mediumAnimTime">
+        <KeyFrameSet></KeyFrameSet>
+        <OnClick motion:targetId="@+id/manga_cover" />
+    </Transition>
+
+    <ConstraintSet android:id="@+id/start">
+        <Constraint
+            android:id="@+id/manga_summary_section"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="8dp"
+            motion:layout_constraintEnd_toEndOf="parent"
+            motion:layout_constraintStart_toStartOf="parent"
+            motion:layout_constraintTop_toBottomOf="@id/metadata_view"
+            motion:visibilityMode="ignore" />
+    </ConstraintSet>
+
+    <ConstraintSet android:id="@+id/end">
+
+        <Constraint
+            android:id="@+id/manga_summary_section"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="8dp"
+            motion:layout_constraintEnd_toEndOf="parent"
+            motion:layout_constraintStart_toStartOf="parent"
+            motion:layout_constraintTop_toBottomOf="@id/metadata_view"
+            motion:visibilityMode="ignore" />
+        <Constraint
+            android:id="@+id/manga_detail"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="16dp"
+            android:layout_marginTop="24dp"
+            android:layout_marginEnd="16dp"
+            android:layout_marginBottom="8dp"
+            motion:layout_constraintEnd_toEndOf="parent"
+            motion:layout_constraintStart_toStartOf="parent"
+            motion:layout_constraintTop_toBottomOf="@+id/manga_cover" />
+        <Constraint
+            motion:layout_constraintEnd_toEndOf="parent"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            android:layout_marginEnd="0dp"
+            android:layout_marginStart="0dp"
+            motion:layout_constraintTop_toTopOf="parent"
+            motion:layout_constraintStart_toStartOf="parent"
+            motion:layout_constraintDimensionRatio="w,3:2"
+            android:layout_marginTop="0dp"
+            android:id="@+id/manga_cover" />
+    </ConstraintSet>
+</MotionScene>

app/src/main/res/xml/manga_summary_section_scene.xml

@@ -0,0 +1,162 @@
+<?xml version="1.0" encoding="utf-8"?>
+<MotionScene xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:motion="http://schemas.android.com/apk/res-auto">
+
+    <Transition
+        motion:constraintSetEnd="@+id/end"
+        motion:constraintSetStart="@id/start"
+        motion:duration="1">
+        <KeyFrameSet></KeyFrameSet>
+        <OnClick motion:clickAction="toggle" />
+    </Transition>
+
+    <ConstraintSet android:id="@+id/start">
+        <Constraint
+            android:id="@+id/manga_info_toggle_more_scrim"
+            android:layout_width="20dp"
+            android:layout_height="0dp"
+            android:visibility="visible"
+            motion:layout_constraintBottom_toBottomOf="@+id/manga_info_toggle_more"
+            motion:layout_constraintEnd_toStartOf="@+id/manga_info_toggle_more"
+            motion:layout_constraintTop_toTopOf="@+id/manga_info_toggle_more" />
+        <Constraint
+            android:id="@+id/manga_info_toggle_more"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:visibility="visible"
+            motion:layout_constraintBottom_toBottomOf="@+id/manga_summary_text"
+            motion:layout_constraintEnd_toEndOf="parent" />
+        <Constraint
+            android:id="@+id/manga_info_toggle_less"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:visibility="gone"
+            motion:layout_constraintEnd_toEndOf="parent"
+            motion:layout_constraintTop_toBottomOf="@+id/manga_summary_text" />
+        <Constraint
+            android:id="@+id/manga_genres_tags_compact"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:visibility="visible"
+            motion:layout_constraintEnd_toEndOf="parent"
+            motion:layout_constraintStart_toStartOf="parent"
+            motion:layout_constraintTop_toBottomOf="@+id/manga_summary_text" />
+        <!--<Constraint
+            android:id="@+id/manga_genres_tags_full_chips"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="16dp"
+            android:layout_marginEnd="16dp"
+            android:visibility="gone"
+            motion:layout_constraintEnd_toEndOf="parent"
+            motion:layout_constraintStart_toStartOf="parent"
+            motion:layout_constraintTop_toBottomOf="@+id/manga_info_toggle_less" />-->
+        <Constraint
+            android:id="@+id/genre_groups"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="16dp"
+            android:layout_marginEnd="16dp"
+            android:visibility="gone"
+            motion:layout_constraintEnd_toEndOf="parent"
+            motion:layout_constraintStart_toStartOf="parent"
+            motion:layout_constraintTop_toBottomOf="@+id/manga_info_toggle_less" />
+    </ConstraintSet>
+
+    <ConstraintSet android:id="@+id/end">
+        <Constraint
+            android:id="@+id/manga_info_toggle_more_scrim"
+            android:layout_width="20dp"
+            android:layout_height="0dp"
+            android:visibility="gone"
+            motion:layout_constraintBottom_toBottomOf="@+id/manga_info_toggle_more"
+            motion:layout_constraintEnd_toStartOf="@+id/manga_info_toggle_more"
+            motion:layout_constraintTop_toTopOf="@+id/manga_info_toggle_more" />
+        <Constraint
+            android:id="@+id/manga_info_toggle_more"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:visibility="gone"
+            motion:layout_constraintBottom_toBottomOf="@+id/manga_summary_text"
+            motion:layout_constraintEnd_toEndOf="parent" />
+        <Constraint
+            android:id="@+id/manga_info_toggle_less"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:visibility="visible"
+            motion:layout_constraintEnd_toEndOf="parent"
+            motion:layout_constraintTop_toBottomOf="@+id/manga_summary_text" />
+        <Constraint
+            android:id="@+id/manga_genres_tags_compact"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:visibility="gone"
+            motion:layout_constraintEnd_toEndOf="parent"
+            motion:layout_constraintStart_toStartOf="parent"
+            motion:layout_constraintTop_toBottomOf="@+id/manga_summary_text" />
+<!--        <Constraint
+            android:id="@+id/manga_genres_tags_full_chips"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="16dp"
+            android:layout_marginEnd="16dp"
+            android:visibility="visible"
+            motion:layout_constraintEnd_toEndOf="parent"
+            motion:layout_constraintStart_toStartOf="parent"
+            motion:layout_constraintTop_toBottomOf="@+id/manga_info_toggle_less" />-->
+        <Constraint
+            android:id="@+id/genre_groups"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="16dp"
+            android:layout_marginEnd="16dp"
+            android:visibility="visible"
+            motion:layout_constraintEnd_toEndOf="parent"
+            motion:layout_constraintStart_toStartOf="parent"
+            motion:layout_constraintTop_toBottomOf="@+id/manga_info_toggle_less" />
+        <Constraint
+            android:id="@+id/manga_summary_text"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="16dp"
+            android:layout_marginTop="8dp"
+            android:layout_marginEnd="16dp"
+            motion:layout_constraintEnd_toEndOf="parent"
+            motion:layout_constraintStart_toStartOf="parent"
+            motion:layout_constraintTop_toBottomOf="@+id/manga_cover"
+            motion:visibilityMode="ignore" />
+        <Constraint
+            android:id="@+id/manga_summary_text"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="16dp"
+            android:layout_marginTop="8dp"
+            android:layout_marginEnd="16dp"
+            motion:layout_constraintEnd_toEndOf="parent"
+            motion:layout_constraintStart_toStartOf="parent"
+            motion:layout_constraintTop_toBottomOf="@+id/manga_cover"
+            motion:visibilityMode="ignore" />
+        <Constraint
+            android:id="@+id/manga_summary_text"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="16dp"
+            android:layout_marginTop="8dp"
+            android:layout_marginEnd="16dp"
+            motion:layout_constraintEnd_toEndOf="parent"
+            motion:layout_constraintStart_toStartOf="parent"
+            motion:layout_constraintTop_toBottomOf="@+id/manga_cover"
+            motion:visibilityMode="ignore" />
+        <Constraint
+            android:id="@+id/manga_summary_text"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="16dp"
+            android:layout_marginTop="8dp"
+            android:layout_marginEnd="16dp"
+            motion:layout_constraintEnd_toEndOf="parent"
+            motion:layout_constraintStart_toStartOf="parent"
+            motion:layout_constraintTop_toBottomOf="@+id/manga_cover"
+            motion:visibilityMode="ignore" />
+    </ConstraintSet>
+</MotionScene>