Improve explore fragment

app/src/main/java/org/koitharu/kotatsu/explore/ui/ExploreFragment.kt

@@ -11,16 +11,19 @@ import org.koin.android.ext.android.get
 import org.koin.androidx.viewmodel.ext.android.viewModel
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.base.ui.BaseFragment
+import org.koitharu.kotatsu.base.ui.list.OnListItemClickListener
 import org.koitharu.kotatsu.base.ui.util.RecyclerViewOwner
 import org.koitharu.kotatsu.databinding.FragmentExploreBinding
 import org.koitharu.kotatsu.explore.ui.adapter.ExploreAdapter
-import org.koitharu.kotatsu.explore.ui.adapter.SourcesHeaderEventListener
-import org.koitharu.kotatsu.library.ui.adapter.LibraryAdapter
+import org.koitharu.kotatsu.explore.ui.adapter.ExploreListEventListener
+import org.koitharu.kotatsu.explore.ui.model.ExploreItem
+import org.koitharu.kotatsu.history.ui.HistoryActivity
+import org.koitharu.kotatsu.search.ui.MangaListActivity
 import org.koitharu.kotatsu.settings.SettingsActivity
 
 class ExploreFragment : BaseFragment<FragmentExploreBinding>(),
 	RecyclerViewOwner,
-	SourcesHeaderEventListener {
+	ExploreListEventListener, OnListItemClickListener<ExploreItem.Source> {
 
 	private val viewModel by viewModel<ExploreViewModel>()
 	private var exploreAdapter: ExploreAdapter? = null
@@ -35,15 +38,15 @@ class ExploreFragment : BaseFragment<FragmentExploreBinding>(),
 
 	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
 		super.onViewCreated(view, savedInstanceState)
-		exploreAdapter = ExploreAdapter(get(), viewLifecycleOwner, this)
+		exploreAdapter = ExploreAdapter(get(), viewLifecycleOwner, this, this)
 		with(binding.recyclerView) {
 			adapter = exploreAdapter
 			setHasFixedSize(true)
 			val spacing = resources.getDimensionPixelOffset(R.dimen.list_spacing)
 			paddingHorizontal = spacing
 		}
-		viewModel.items.observe(viewLifecycleOwner) {
-			exploreAdapter!!.items = it
+		viewModel.content.observe(viewLifecycleOwner) {
+			exploreAdapter?.items = it
 		}
 	}
 
@@ -68,6 +71,19 @@ class ExploreFragment : BaseFragment<FragmentExploreBinding>(),
 		startActivity(SettingsActivity.newManageSourcesIntent(view.context))
 	}
 
+	override fun onClick(v: View) {
+		val intent = when (v.id) {
+			R.id.button_history -> HistoryActivity.newIntent(v.context)
+			else -> return
+		}
+		startActivity(intent)
+	}
+
+	override fun onItemClick(item: ExploreItem.Source, view: View) {
+		val intent = MangaListActivity.newIntent(view.context, item.source)
+		startActivity(intent)
+	}
+
 	override fun onRetryClick(error: Throwable) = Unit
 
 	override fun onEmptyActionClick() = Unit

app/src/main/java/org/koitharu/kotatsu/explore/ui/ExploreViewModel.kt

@@ -1,71 +1,40 @@
 package org.koitharu.kotatsu.explore.ui
 
-import androidx.core.os.LocaleListCompat
-import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.viewModelScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.distinctUntilChanged
+import kotlinx.coroutines.flow.filter
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.onStart
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.base.ui.BaseViewModel
-import org.koitharu.kotatsu.core.model.getLocaleTitle
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.explore.ui.model.ExploreItem
-import org.koitharu.kotatsu.utils.ext.map
-import java.util.*
-
-private const val KEY_ENABLED = "!"
+import org.koitharu.kotatsu.parsers.model.MangaSource
+import org.koitharu.kotatsu.utils.ext.asLiveDataDistinct
 
 class ExploreViewModel(
 	private val settings: AppSettings,
 ) : BaseViewModel() {
 
-	val items = MutableLiveData<List<ExploreItem>>(emptyList())
+	val content: LiveData<List<ExploreItem>> = settings.observe()
+		.filter { it == AppSettings.KEY_SOURCES_HIDDEN || it == AppSettings.KEY_SOURCES_ORDER }
+		.onStart { emit("") }
+		.map { settings.getMangaSources(includeHidden = false) }
+		.distinctUntilChanged()
+		.map { buildList(it) }
+		.asLiveDataDistinct(viewModelScope.coroutineContext + Dispatchers.Default, emptyList())
 
-	init {
-		buildList()
-	}
-
-	private fun buildList() {
-		val sources = settings.getMangaSources(includeHidden = true)
-		val hiddenSources = settings.hiddenSources
-		val map = sources.groupByTo(TreeMap(LocaleKeyComparator())) {
-			if (it.name !in hiddenSources) {
-				KEY_ENABLED
-			} else {
-				it.locale
-			}
-		}
-		val result = ArrayList<ExploreItem>(sources.size + map.size + 1)
+	private fun buildList(sources: List<MangaSource>): List<ExploreItem> {
+		val result = ArrayList<ExploreItem>(sources.size + 2)
 		result += ExploreItem.Buttons
-		val enabledSources = map.remove(KEY_ENABLED)
-		if (!enabledSources.isNullOrEmpty()) {
+		if (sources.isNotEmpty()) {
 			result += ExploreItem.Header(R.string.enabled_sources)
-			enabledSources.mapTo(result) {
-				ExploreItem.Source(
-					source = it,
-					summary = it.getLocaleTitle(),
-				)
-			}
-		}
-		items.value = result
-	}
-
-	private class LocaleKeyComparator : Comparator<String?> {
-
-		private val deviceLocales = LocaleListCompat.getAdjustedDefault()
-			.map { it.language }
-
-		override fun compare(a: String?, b: String?): Int {
-			when {
-				a == b -> return 0
-				a == null -> return 1
-				b == null -> return -1
-			}
-			val ai = deviceLocales.indexOf(a!!)
-			val bi = deviceLocales.indexOf(b!!)
-			return when {
-				ai < 0 && bi < 0 -> a.compareTo(b)
-				ai < 0 -> 1
-				bi < 0 -> -1
-				else -> ai.compareTo(bi)
-			}
+			sources.mapTo(result) { ExploreItem.Source(it) }
+		} else {
+			// TODO
 		}
+		return result
 	}
 }

app/src/main/java/org/koitharu/kotatsu/explore/ui/adapter/ExploreAdapter.kt

@@ -3,25 +3,17 @@ package org.koitharu.kotatsu.explore.ui.adapter
 import androidx.lifecycle.LifecycleOwner
 import coil.ImageLoader
 import com.hannesdorfmann.adapterdelegates4.AsyncListDifferDelegationAdapter
+import org.koitharu.kotatsu.base.ui.list.OnListItemClickListener
 import org.koitharu.kotatsu.explore.ui.model.ExploreItem
 
 class ExploreAdapter(
 	coil: ImageLoader,
 	lifecycleOwner: LifecycleOwner,
-	listener: SourcesHeaderEventListener,
+	listener: ExploreListEventListener,
+	clickListener: OnListItemClickListener<ExploreItem.Source>,
 ) : AsyncListDifferDelegationAdapter<ExploreItem>(
 	ExploreDiffCallback(),
-	exploreButtonsDelegate(),
-	sourceHeaderDelegate(listener),
-	sourceItemDelegate(coil, lifecycleOwner),
-) {
-
-	init {
-		delegatesManager
-			.addDelegate(exploreButtonsDelegate())
-			.addDelegate(sourceHeaderDelegate(listener = listener))
-			.addDelegate(sourceItemDelegate(coil, lifecycleOwner))
-	}
-
-
-}
+	exploreButtonsAD(listener),
+	exploreSourcesHeaderAD(listener),
+	exploreSourceItemAD(coil, clickListener, lifecycleOwner),
+)

app/src/main/java/org/koitharu/kotatsu/explore/ui/adapter/ExploreAdapterDelegates.kt

@@ -7,22 +7,29 @@ import coil.request.Disposable
 import coil.request.ImageRequest
 import com.hannesdorfmann.adapterdelegates4.dsl.adapterDelegateViewBinding
 import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.base.ui.list.AdapterDelegateClickListenerAdapter
+import org.koitharu.kotatsu.base.ui.list.OnListItemClickListener
 import org.koitharu.kotatsu.databinding.ItemExploreButtonsBinding
 import org.koitharu.kotatsu.databinding.ItemExploreHeaderBinding
 import org.koitharu.kotatsu.databinding.ItemExploreSourceBinding
 import org.koitharu.kotatsu.explore.ui.model.ExploreItem
 import org.koitharu.kotatsu.utils.ext.enqueueWith
+import org.koitharu.kotatsu.utils.image.FaviconFallbackDrawable
 
-fun exploreButtonsDelegate() = adapterDelegateViewBinding<ExploreItem.Buttons, ExploreItem, ItemExploreButtonsBinding>(
+fun exploreButtonsAD(
+	clickListener: View.OnClickListener,
+) = adapterDelegateViewBinding<ExploreItem.Buttons, ExploreItem, ItemExploreButtonsBinding>(
 	{ layoutInflater, parent -> ItemExploreButtonsBinding.inflate(layoutInflater, parent, false) }
 ) {
 
-	binding.localStorage.requestFocus() // stub
+	binding.buttonBookmarks.setOnClickListener(clickListener)
+	binding.buttonHistory.setOnClickListener(clickListener)
+	binding.buttonLocal.setOnClickListener(clickListener)
+	binding.buttonSuggestions.setOnClickListener(clickListener)
+}
 
-} // TODO
-
-fun sourceHeaderDelegate(
-	listener: SourcesHeaderEventListener,
+fun exploreSourcesHeaderAD(
+	listener: ExploreListEventListener,
 ) = adapterDelegateViewBinding<ExploreItem.Header, ExploreItem, ItemExploreHeaderBinding>(
 	{ layoutInflater, parent -> ItemExploreHeaderBinding.inflate(layoutInflater, parent, false) }
 ) {
@@ -38,8 +45,9 @@ fun sourceHeaderDelegate(
 	}
 }
 
-fun sourceItemDelegate(
+fun exploreSourceItemAD(
 	coil: ImageLoader,
+	listener: OnListItemClickListener<ExploreItem.Source>,
 	lifecycleOwner: LifecycleOwner,
 ) = adapterDelegateViewBinding<ExploreItem.Source, ExploreItem, ItemExploreSourceBinding>(
 	{ layoutInflater, parent -> ItemExploreSourceBinding.inflate(layoutInflater, parent, false) },
@@ -47,12 +55,19 @@ fun sourceItemDelegate(
 ) {
 
 	var imageRequest: Disposable? = null
+	val eventListener = AdapterDelegateClickListenerAdapter(this, listener)
+
+	binding.root.setOnClickListener(eventListener)
+	binding.root.setOnLongClickListener(eventListener)
 
 	bind {
 		binding.textViewTitle.text = item.source.title
+		val fallbackIcon = FaviconFallbackDrawable(context, item.source.name)
 		imageRequest = ImageRequest.Builder(context)
 			.data(item.faviconUrl)
-			.error(R.drawable.ic_favicon_fallback)
+			.fallback(fallbackIcon)
+			.placeholder(fallbackIcon)
+			.error(fallbackIcon)
 			.target(binding.imageViewCover)
 			.lifecycle(lifecycleOwner)
 			.enqueueWith(coil)

app/src/main/java/org/koitharu/kotatsu/explore/ui/adapter/ExploreDiffCallback.kt

@@ -8,9 +8,7 @@ class ExploreDiffCallback : DiffUtil.ItemCallback<ExploreItem>() {
 	override fun areItemsTheSame(oldItem: ExploreItem, newItem: ExploreItem): Boolean {
 		return when {
 			oldItem.javaClass != newItem.javaClass -> false
-			oldItem is ExploreItem.Buttons && newItem is ExploreItem.Buttons -> {
-				oldItem == newItem
-			}
+			oldItem is ExploreItem.Buttons && newItem is ExploreItem.Buttons -> true
 			oldItem is ExploreItem.Source && newItem is ExploreItem.Source -> {
 				oldItem.source == newItem.source
 			}

app/src/main/java/org/koitharu/kotatsu/explore/ui/adapter/ExploreListEventListener.kt

@@ -3,8 +3,7 @@ package org.koitharu.kotatsu.explore.ui.adapter
 import android.view.View
 import org.koitharu.kotatsu.list.ui.adapter.ListStateHolderListener
 
-interface SourcesHeaderEventListener : ListStateHolderListener {
+interface ExploreListEventListener : ListStateHolderListener, View.OnClickListener {
 
 	fun onManageClick(view: View)
-
 }

app/src/main/java/org/koitharu/kotatsu/explore/ui/model/ExploreItem.kt

@@ -2,9 +2,10 @@ package org.koitharu.kotatsu.explore.ui.model
 
 import android.net.Uri
 import androidx.annotation.StringRes
+import org.koitharu.kotatsu.list.ui.model.ListModel
 import org.koitharu.kotatsu.parsers.model.MangaSource
 
-sealed interface ExploreItem {
+sealed interface ExploreItem : ListModel {
 
 	object Buttons : ExploreItem
 
@@ -24,7 +25,6 @@ sealed interface ExploreItem {
 
 	class Source(
 		val source: MangaSource,
-		val summary: String?,
 	) : ExploreItem {
 
 		val faviconUrl: Uri
@@ -37,15 +37,12 @@ sealed interface ExploreItem {
 			other as Source
 
 			if (source != other.source) return false
-			if (summary != other.summary) return false
 
 			return true
 		}
 
 		override fun hashCode(): Int {
-			var result = source.hashCode()
-			result = 31 * result + summary.hashCode()
-			return result
+			return source.hashCode()
 		}
 	}
 

app/src/main/java/org/koitharu/kotatsu/search/ui/MangaListActivity.kt

@@ -15,6 +15,7 @@ import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.base.ui.BaseActivity
 import org.koitharu.kotatsu.core.model.parcelable.ParcelableMangaTags
 import org.koitharu.kotatsu.databinding.ActivityContainerBinding
+import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.model.MangaTag
 import org.koitharu.kotatsu.remotelist.ui.RemoteListFragment
 import org.koitharu.kotatsu.remotelist.ui.RemoteListViewModel
@@ -24,17 +25,21 @@ class MangaListActivity : BaseActivity<ActivityContainerBinding>() {
 	override fun onCreate(savedInstanceState: Bundle?) {
 		super.onCreate(savedInstanceState)
 		setContentView(ActivityContainerBinding.inflate(layoutInflater))
-		val tags = intent.getParcelableExtra<ParcelableMangaTags>(EXTRA_TAGS)?.tags ?: run {
-			finishAfterTransition()
-			return
-		}
+		val tags = intent.getParcelableExtra<ParcelableMangaTags>(EXTRA_TAGS)?.tags
 		supportActionBar?.setDisplayHomeAsUpEnabled(true)
 		val fm = supportFragmentManager
 		if (fm.findFragmentById(R.id.container) == null) {
+			val source = intent.getSerializableExtra(EXTRA_SOURCE) as? MangaSource ?: tags?.firstOrNull()?.source
+			if (source == null) {
+				finishAfterTransition()
+				return
+			}
 			fm.commit {
-				val fragment = RemoteListFragment.newInstance(tags.first().source)
+				val fragment = RemoteListFragment.newInstance(source)
 				replace(R.id.container, fragment)
-				runOnCommit(ApplyFilterRunnable(fragment, tags))
+				if (!tags.isNullOrEmpty()) {
+					runOnCommit(ApplyFilterRunnable(fragment, tags))
+				}
 			}
 		}
 	}
@@ -70,9 +75,12 @@ class MangaListActivity : BaseActivity<ActivityContainerBinding>() {
 	companion object {
 
 		private const val EXTRA_TAGS = "tags"
+		private const val EXTRA_SOURCE = "source"
 
-		fun newIntent(context: Context, tags: Set<MangaTag>) =
-			Intent(context, MangaListActivity::class.java)
-				.putExtra(EXTRA_TAGS, ParcelableMangaTags(tags))
+		fun newIntent(context: Context, tags: Set<MangaTag>) = Intent(context, MangaListActivity::class.java)
+			.putExtra(EXTRA_TAGS, ParcelableMangaTags(tags))
+
+		fun newIntent(context: Context, source: MangaSource) = Intent(context, MangaListActivity::class.java)
+			.putExtra(EXTRA_SOURCE, source)
 	}
 }

app/src/main/java/org/koitharu/kotatsu/utils/image/FaviconFallbackDrawable.kt

@@ -0,0 +1,66 @@
+package org.koitharu.kotatsu.utils.image
+
+import android.content.Context
+import android.graphics.*
+import android.graphics.drawable.Drawable
+import androidx.core.graphics.ColorUtils
+import kotlin.math.absoluteValue
+
+class FaviconFallbackDrawable(
+	context: Context,
+	name: String,
+) : Drawable() {
+
+	private val paint = Paint(Paint.ANTI_ALIAS_FLAG)
+	private val letter = name.take(1).uppercase()
+	private val color = colorOfString(name)
+	private val textBounds = Rect()
+	private val tempRect = Rect()
+
+	init {
+		paint.style = Paint.Style.FILL
+		paint.textAlign = Paint.Align.CENTER
+		paint.isFakeBoldText = true
+	}
+
+	override fun draw(canvas: Canvas) {
+		val cx = bounds.exactCenterX()
+		paint.color = color
+		canvas.drawPaint(paint)
+		paint.color = Color.WHITE
+		val ty = bounds.height() / 2f + textBounds.height() / 2f - textBounds.bottom
+		canvas.drawText(letter, cx, ty, paint)
+	}
+
+	override fun onBoundsChange(bounds: Rect) {
+		super.onBoundsChange(bounds)
+		val innerWidth = bounds.width() - (paint.strokeWidth * 2f)
+		paint.textSize = getTextSizeForWidth(innerWidth, "100%")
+		paint.getTextBounds(letter, 0, letter.length, textBounds)
+		invalidateSelf()
+	}
+
+	override fun setAlpha(alpha: Int) {
+		paint.alpha = alpha
+	}
+
+	override fun setColorFilter(colorFilter: ColorFilter?) {
+		paint.colorFilter = colorFilter
+	}
+
+	@Suppress("DeprecatedCallableAddReplaceWith")
+	@Deprecated("Deprecated in Java")
+	override fun getOpacity() = PixelFormat.TRANSPARENT
+
+	private fun getTextSizeForWidth(width: Float, text: String): Float {
+		val testTextSize = 48f
+		paint.textSize = testTextSize
+		paint.getTextBounds(text, 0, text.length, tempRect)
+		return testTextSize * width / tempRect.width()
+	}
+
+	private fun colorOfString(str: String): Int {
+		val hue = (str.hashCode() % 360).absoluteValue.toFloat()
+		return ColorUtils.HSLToColor(floatArrayOf(hue, 0.5f, 0.5f))
+	}
+}

app/src/main/res/layout-w600dp/item_explore_buttons.xml

@@ -5,45 +5,45 @@
 	android:layout_width="match_parent"
 	android:layout_height="wrap_content"
 	android:orientation="horizontal"
-	android:paddingHorizontal="8dp"
-	android:paddingVertical="4dp">
+	android:padding="4dp"
+	android:weightSum="4">
 
 	<com.google.android.material.button.MaterialButton
-		android:id="@+id/favourites"
+		android:id="@+id/button_history"
 		style="@style/Widget.Kotatsu.ExploreButton"
 		android:layout_width="0dp"
 		android:layout_height="wrap_content"
-		android:layout_marginEnd="16dp"
+		android:layout_marginHorizontal="4dp"
 		android:layout_weight="1"
 		android:text="@string/history"
 		app:icon="@drawable/ic_history" />
 
 	<com.google.android.material.button.MaterialButton
-		android:id="@+id/local_storage"
+		android:id="@+id/button_local"
 		style="@style/Widget.Kotatsu.ExploreButton"
 		android:layout_width="0dp"
 		android:layout_height="wrap_content"
-		android:layout_marginEnd="8dp"
+		android:layout_marginHorizontal="4dp"
 		android:layout_weight="1"
 		android:text="@string/local_storage"
 		app:icon="@drawable/ic_storage" />
 
 	<com.google.android.material.button.MaterialButton
-		android:id="@+id/suggestions"
+		android:id="@+id/button_suggestions"
 		style="@style/Widget.Kotatsu.ExploreButton"
 		android:layout_width="0dp"
 		android:layout_height="wrap_content"
-		android:layout_marginHorizontal="8dp"
+		android:layout_marginHorizontal="4dp"
 		android:layout_weight="1"
 		android:text="@string/suggestions"
 		app:icon="@drawable/ic_suggestion" />
 
 	<com.google.android.material.button.MaterialButton
-		android:id="@+id/downloads"
+		android:id="@+id/button_bookmarks"
 		style="@style/Widget.Kotatsu.ExploreButton"
 		android:layout_width="0dp"
 		android:layout_height="wrap_content"
-		android:layout_marginStart="8dp"
+		android:layout_marginHorizontal="4dp"
 		android:layout_weight="1"
 		android:text="@string/bookmarks"
 		app:icon="@drawable/ic_bookmark" />

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

@@ -1,62 +1,63 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<GridLayout
+	xmlns:android="http://schemas.android.com/apk/res/android"
 	xmlns:app="http://schemas.android.com/apk/res-auto"
 	android:layout_width="match_parent"
 	android:layout_height="wrap_content"
+	android:columnCount="2"
 	android:orientation="vertical"
-	android:paddingHorizontal="8dp"
-	android:paddingVertical="4dp">
+	android:rowCount="2">
 
 	<com.google.android.material.button.MaterialButton
-		android:id="@+id/favourites"
+		android:id="@+id/button_history"
 		style="@style/Widget.Kotatsu.ExploreButton"
-		android:layout_width="0dp"
 		android:layout_height="wrap_content"
-		android:layout_marginEnd="16dp"
+		android:layout_columnWeight="0.5"
+		android:layout_gravity="fill_horizontal"
+		android:layout_marginStart="8dp"
+		android:layout_marginTop="4dp"
+		android:layout_marginEnd="8dp"
+		android:layout_marginBottom="4dp"
 		android:text="@string/history"
-		app:icon="@drawable/ic_history"
-		app:layout_constraintEnd_toStartOf="@+id/local_storage"
-		app:layout_constraintHorizontal_bias="0.5"
-		app:layout_constraintStart_toStartOf="parent"
-		app:layout_constraintTop_toTopOf="parent" />
+		app:icon="@drawable/ic_history" />
 
 	<com.google.android.material.button.MaterialButton
-		android:id="@+id/local_storage"
+		android:id="@+id/button_suggestions"
 		style="@style/Widget.Kotatsu.ExploreButton"
-		android:layout_width="0dp"
 		android:layout_height="wrap_content"
-		android:text="@string/local_storage"
-		app:icon="@drawable/ic_storage"
-		app:layout_constraintEnd_toEndOf="parent"
-		app:layout_constraintHorizontal_bias="0.5"
-		app:layout_constraintStart_toEndOf="@+id/favourites"
-		app:layout_constraintTop_toTopOf="@+id/favourites" />
-
-	<com.google.android.material.button.MaterialButton
-		android:id="@+id/suggestions"
-		style="@style/Widget.Kotatsu.ExploreButton"
-		android:layout_width="0dp"
-		android:layout_height="wrap_content"
-		android:layout_marginTop="8dp"
-		android:layout_marginEnd="16dp"
+		android:layout_columnWeight="0.5"
+		android:layout_gravity="fill_horizontal"
+		android:layout_marginStart="8dp"
+		android:layout_marginTop="4dp"
+		android:layout_marginEnd="8dp"
+		android:layout_marginBottom="4dp"
 		android:text="@string/suggestions"
-		app:icon="@drawable/ic_suggestion"
-		app:layout_constraintEnd_toStartOf="@+id/downloads"
-		app:layout_constraintHorizontal_bias="0.5"
-		app:layout_constraintStart_toStartOf="@+id/favourites"
-		app:layout_constraintTop_toBottomOf="@+id/favourites" />
+		app:icon="@drawable/ic_suggestion" />
 
 	<com.google.android.material.button.MaterialButton
-		android:id="@+id/downloads"
+		android:id="@+id/button_local"
 		style="@style/Widget.Kotatsu.ExploreButton"
-		android:layout_width="0dp"
 		android:layout_height="wrap_content"
-		android:layout_marginTop="8dp"
-		android:text="@string/bookmarks"
-		app:icon="@drawable/ic_bookmark"
-		app:layout_constraintEnd_toEndOf="@+id/local_storage"
-		app:layout_constraintHorizontal_bias="0.5"
-		app:layout_constraintStart_toEndOf="@+id/suggestions"
-		app:layout_constraintTop_toBottomOf="@+id/local_storage" />
+		android:layout_columnWeight="0.5"
+		android:layout_gravity="fill_horizontal"
+		android:layout_marginStart="8dp"
+		android:layout_marginTop="4dp"
+		android:layout_marginEnd="8dp"
+		android:layout_marginBottom="4dp"
+		android:text="@string/local_storage"
+		app:icon="@drawable/ic_storage" />
 
-</androidx.constraintlayout.widget.ConstraintLayout>
+	<com.google.android.material.button.MaterialButton
+		android:id="@+id/button_bookmarks"
+		style="@style/Widget.Kotatsu.ExploreButton"
+		android:layout_height="wrap_content"
+		android:layout_columnWeight="0.5"
+		android:layout_gravity="fill_horizontal"
+		android:layout_marginStart="8dp"
+		android:layout_marginTop="4dp"
+		android:layout_marginEnd="8dp"
+		android:layout_marginBottom="4dp"
+		android:text="@string/bookmarks"
+		app:icon="@drawable/ic_bookmark" />
+
+</GridLayout>

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

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout
+<LinearLayout
 	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"
@@ -7,32 +7,26 @@
 	android:layout_height="?attr/listPreferredItemHeightSmall"
 	android:background="?selectableItemBackground"
 	android:clipChildren="false"
+	android:gravity="center_vertical"
+	android:orientation="horizontal"
 	android:padding="@dimen/list_spacing">
 
 	<com.google.android.material.imageview.ShapeableImageView
 		android:id="@+id/imageView_cover"
-		android:layout_width="0dp"
-		android:layout_height="0dp"
+		android:layout_width="32dp"
+		android:layout_height="32dp"
 		android:scaleType="centerCrop"
-		app:layout_constraintBottom_toBottomOf="parent"
-		app:layout_constraintDimensionRatio="h,1:1"
-		app:layout_constraintStart_toStartOf="parent"
-		app:layout_constraintTop_toTopOf="parent"
-		app:shapeAppearanceOverlay="@style/ShapeAppearanceOverlay.Kotatsu.Cover.Small"
+		app:shapeAppearance="?shapeAppearanceCornerSmall"
 		tools:src="@tools:sample/backgrounds/scenic" />
 
 	<TextView
 		android:id="@+id/textView_title"
-		android:layout_width="0dp"
+		android:layout_width="match_parent"
 		android:layout_height="wrap_content"
 		android:layout_marginStart="16dp"
 		android:ellipsize="end"
-		android:maxLines="1"
+		android:singleLine="true"
 		android:textAppearance="?attr/textAppearanceBodyMedium"
-		app:layout_constraintBottom_toBottomOf="parent"
-		app:layout_constraintEnd_toEndOf="parent"
-		app:layout_constraintStart_toEndOf="@+id/imageView_cover"
-		app:layout_constraintTop_toTopOf="@+id/imageView_cover"
-		tools:text="Title" />
+		tools:text="@tools:sample/lorem[2]" />
 
-</androidx.constraintlayout.widget.ConstraintLayout>
+</LinearLayout>

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

@@ -128,15 +128,17 @@
 	</style>
 
 	<style name="Widget.Kotatsu.ExploreButton" parent="Widget.Material3.Button.TonalButton.Icon">
-		<item name="android:paddingTop">16dp</item>
-		<item name="android:paddingBottom">16dp</item>
+		<item name="android:minHeight">58dp</item>
 		<item name="android:textColor">?attr/colorOnSurface</item>
-		<item name="shapeAppearanceOverlay">@style/ShapeAppearanceOverlay.Material3.FloatingActionButton</item>
+		<item name="singleLine">true</item>
+		<item name="shapeAppearance">?shapeAppearanceCornerLarge</item>
 		<item name="iconPadding">16dp</item>
 		<item name="iconGravity">start</item>
+		<item name="android:insetTop">2dp</item>
+		<item name="android:insetBottom">2dp</item>
 		<item name="iconTint">?attr/colorPrimary</item>
 		<item name="android:gravity">start|center_vertical</item>
-		<item name="android:textAppearance">@style/TextAppearance.Material3.BodyMedium</item>
+		<item name="android:textAppearance">?textAppearanceButton</item>
 	</style>
 
 	<style name="ThemeOverlay.Kotatsu.MainToolbar" parent="">