Improve thumbnails bs

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

@@ -25,6 +25,7 @@ import org.koitharu.kotatsu.details.ui.model.ChapterListItem
 import org.koitharu.kotatsu.download.ui.service.DownloadService
 import org.koitharu.kotatsu.reader.ui.ReaderActivity
 import org.koitharu.kotatsu.reader.ui.ReaderState
+import org.koitharu.kotatsu.utils.RecyclerViewScrollCallback
 
 class ChaptersFragment : BaseFragment<FragmentChaptersBinding>(),
 	OnListItemClickListener<ChapterListItem>,
@@ -211,7 +212,17 @@ class ChaptersFragment : BaseFragment<FragmentChaptersBinding>(),
 	}
 
 	private fun onChaptersChanged(list: List<ChapterListItem>) {
-		chaptersAdapter?.items = list
+		val adapter = chaptersAdapter ?: return
+		if (adapter.itemCount == 0) {
+			val position = list.indexOfFirst { it.hasFlag(ChapterListItem.FLAG_CURRENT) } - 1
+			if (position > 0) {
+				adapter.setItems(list, RecyclerViewScrollCallback(binding.recyclerViewChapters, position))
+			} else {
+				adapter.items = list
+			}
+		} else {
+			adapter.items = list
+		}
 	}
 
 	private fun onLoadingStateChanged(isLoading: Boolean) {

app/src/main/java/org/koitharu/kotatsu/reader/ui/ChaptersBottomSheet.kt

@@ -5,7 +5,6 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import androidx.fragment.app.FragmentManager
-import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import com.google.android.material.divider.MaterialDividerItemDecoration
 import org.koin.android.ext.android.get
@@ -19,6 +18,7 @@ import org.koitharu.kotatsu.details.ui.adapter.ChaptersAdapter
 import org.koitharu.kotatsu.details.ui.model.ChapterListItem
 import org.koitharu.kotatsu.details.ui.model.toListItem
 import org.koitharu.kotatsu.utils.BottomSheetToolbarController
+import org.koitharu.kotatsu.utils.RecyclerViewScrollCallback
 import org.koitharu.kotatsu.utils.ext.withArgs
 
 class ChaptersBottomSheet : BaseBottomSheet<SheetChaptersBinding>(), OnListItemClickListener<ChapterListItem> {
@@ -58,7 +58,7 @@ class ChaptersBottomSheet : BaseBottomSheet<SheetChaptersBinding>(), OnListItemC
 		binding.recyclerView.adapter = ChaptersAdapter(this).also { adapter ->
 			if (currentPosition >= 0) {
 				val targetPosition = (currentPosition - 1).coerceAtLeast(0)
-				adapter.setItems(items, Scroller(binding.recyclerView, targetPosition))
+				adapter.setItems(items, RecyclerViewScrollCallback(binding.recyclerView, targetPosition))
 			} else {
 				adapter.items = items
 			}
@@ -77,13 +77,6 @@ class ChaptersBottomSheet : BaseBottomSheet<SheetChaptersBinding>(), OnListItemC
 		fun onChapterChanged(chapter: MangaChapter)
 	}
 
-	private class Scroller(private val recyclerView: RecyclerView, private val position: Int) : Runnable {
-		override fun run() {
-			val offset = recyclerView.resources.getDimensionPixelSize(R.dimen.chapter_list_item_height) / 2
-			(recyclerView.layoutManager as LinearLayoutManager).scrollToPositionWithOffset(position, offset)
-		}
-	}
-
 	companion object {
 
 		private const val ARG_CHAPTERS = "chapters"

app/src/main/java/org/koitharu/kotatsu/reader/ui/thumbnails/PagesThumbnailsSheet.kt

@@ -6,7 +6,7 @@ import android.view.View
 import android.view.ViewGroup
 import androidx.appcompat.widget.Toolbar
 import androidx.fragment.app.FragmentManager
-import androidx.recyclerview.widget.RecyclerView
+import androidx.recyclerview.widget.GridLayoutManager
 import com.google.android.material.bottomsheet.BottomSheetBehavior
 import org.koin.android.ext.android.get
 import org.koitharu.kotatsu.R
@@ -28,6 +28,7 @@ class PagesThumbnailsSheet : BaseBottomSheet<SheetPagesBinding>(),
 
 	private lateinit var thumbnails: List<PageThumbnail>
 	private val spanResolver = MangaListSpanResolver()
+	private var currentPageIndex = -1
 
 	override fun onCreate(savedInstanceState: Bundle?) {
 		super.onCreate(savedInstanceState)
@@ -36,12 +37,12 @@ class PagesThumbnailsSheet : BaseBottomSheet<SheetPagesBinding>(),
 			dismissAllowingStateLoss()
 			return
 		}
-		val current = arguments?.getInt(ARG_CURRENT, -1) ?: -1
+		currentPageIndex = requireArguments().getInt(ARG_CURRENT, currentPageIndex)
 		val repository = mangaRepositoryOf(pages.first().source)
 		thumbnails = pages.mapIndexed { i, x ->
 			PageThumbnail(
 				number = i + 1,
-				isCurrent = i == current,
+				isCurrent = i == currentPageIndex,
 				repository = repository,
 				page = x
 			)
@@ -68,11 +69,9 @@ class PagesThumbnailsSheet : BaseBottomSheet<SheetPagesBinding>(),
 				resources.getQuantityString(R.plurals.pages, thumbnails.size, thumbnails.size)
 		}
 
-		val initialTopPosition = binding.recyclerView.top
-
 		with(binding.recyclerView) {
 			addItemDecoration(
-				SpacingItemDecoration(view.resources.getDimensionPixelOffset(R.dimen.grid_spacing))
+				SpacingItemDecoration(resources.getDimensionPixelOffset(R.dimen.grid_spacing))
 			)
 			adapter = PageThumbnailAdapter(
 				thumbnails,
@@ -81,16 +80,12 @@ class PagesThumbnailsSheet : BaseBottomSheet<SheetPagesBinding>(),
 				get(),
 				this@PagesThumbnailsSheet
 			)
-			addOnScrollListener(object : RecyclerView.OnScrollListener() {
-				override fun onScrollStateChanged(recyclerView: RecyclerView, newState: Int) = Unit
-
-				override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) {
-					super.onScrolled(recyclerView, dx, dy)
-					binding.appbar.isLifted = getChildAt(0).top < initialTopPosition
-				}
-			})
 			addOnLayoutChangeListener(spanResolver)
 			spanResolver.setGridSize(get<AppSettings>().gridSize / 100f, this)
+			if (currentPageIndex > 0) {
+				val offset = resources.getDimensionPixelOffset(R.dimen.preferred_grid_width)
+				(layoutManager as GridLayoutManager).scrollToPositionWithOffset(currentPageIndex, offset)
+			}
 		}
 	}
 

app/src/main/java/org/koitharu/kotatsu/reader/ui/thumbnails/adapter/PageThumbnailAD.kt

@@ -14,6 +14,8 @@ import org.koitharu.kotatsu.local.data.PagesCache
 import org.koitharu.kotatsu.reader.ui.thumbnails.PageThumbnail
 import org.koitharu.kotatsu.utils.ext.IgnoreErrors
 import org.koitharu.kotatsu.utils.ext.referer
+import org.koitharu.kotatsu.utils.ext.setTextColorAttr
+import com.google.android.material.R as materialR
 
 fun pageThumbnailAD(
 	coil: ImageLoader,
@@ -31,7 +33,7 @@ fun pageThumbnailAD(
 		height = (gridWidth * 13f / 18f).toInt()
 	)
 
-	binding.handle.setOnClickListener {
+	binding.root.setOnClickListener {
 		clickListener.onItemClick(item.page, itemView)
 	}
 
@@ -39,7 +41,8 @@ fun pageThumbnailAD(
 		job?.cancel()
 		binding.imageViewThumb.setImageDrawable(null)
 		with(binding.textViewNumber) {
-			setBackgroundResource(if (item.isCurrent) R.drawable.bg_badge_accent else R.drawable.bg_badge_default)
+			setBackgroundResource(if (item.isCurrent) R.drawable.bg_badge_accent else R.drawable.bg_badge_empty)
+			setTextColorAttr(if (item.isCurrent) materialR.attr.colorOnTertiary else android.R.attr.textColorPrimary)
 			text = (item.number).toString()
 		}
 		job = scope.launch(Dispatchers.Default + IgnoreErrors) {

app/src/main/java/org/koitharu/kotatsu/search/ui/suggestion/adapter/SearchSuggestionsMangaListAD.kt

@@ -15,7 +15,7 @@ import org.koitharu.kotatsu.core.model.Manga
 import org.koitharu.kotatsu.databinding.ItemSearchSuggestionMangaGridBinding
 import org.koitharu.kotatsu.search.ui.suggestion.SearchSuggestionListener
 import org.koitharu.kotatsu.search.ui.suggestion.model.SearchSuggestionItem
-import org.koitharu.kotatsu.utils.ScrollResetCallback
+import org.koitharu.kotatsu.utils.RecyclerViewScrollCallback
 import org.koitharu.kotatsu.utils.ext.enqueueWith
 import org.koitharu.kotatsu.utils.ext.newImageRequest
 
@@ -37,7 +37,7 @@ fun searchSuggestionMangaListAD(
 		right = recyclerView.paddingRight - spacing,
 	)
 	recyclerView.addItemDecoration(SpacingItemDecoration(spacing))
-	val scrollResetCallback = ScrollResetCallback(recyclerView)
+	val scrollResetCallback = RecyclerViewScrollCallback(recyclerView, 0)
 
 	bind {
 		adapter.setItems(item.items, scrollResetCallback)

app/src/main/java/org/koitharu/kotatsu/utils/RecyclerViewScrollCallback.kt

@@ -0,0 +1,21 @@
+package org.koitharu.kotatsu.utils
+
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import java.lang.ref.WeakReference
+
+class RecyclerViewScrollCallback(recyclerView: RecyclerView, private val position: Int) : Runnable {
+
+	private val recyclerViewRef = WeakReference(recyclerView)
+
+	override fun run() {
+		val rv = recyclerViewRef.get() ?: return
+		val lm = rv.layoutManager ?: return
+		rv.stopScroll()
+		if (lm is LinearLayoutManager) {
+			lm.scrollToPositionWithOffset(position, 0)
+		} else {
+			lm.scrollToPosition(position)
+		}
+	}
+}

app/src/main/java/org/koitharu/kotatsu/utils/ScrollResetCallback.kt

@@ -1,13 +0,0 @@
-package org.koitharu.kotatsu.utils
-
-import androidx.recyclerview.widget.RecyclerView
-import java.lang.ref.WeakReference
-
-class ScrollResetCallback(recyclerView: RecyclerView) : Runnable {
-
-	private val recyclerViewRef = WeakReference(recyclerView)
-
-	override fun run() {
-		recyclerViewRef.get()?.scrollToPosition(0)
-	}
-}

app/src/main/java/org/koitharu/kotatsu/utils/ext/TextViewExt.kt

@@ -3,7 +3,9 @@ package org.koitharu.kotatsu.utils.ext
 import android.graphics.drawable.Drawable
 import android.view.View
 import android.widget.TextView
+import androidx.annotation.AttrRes
 import androidx.annotation.StringRes
+import androidx.core.content.res.use
 import androidx.core.view.isGone
 
 var TextView.textAndVisible: CharSequence?
@@ -36,3 +38,10 @@ fun TextView.setTextAndVisible(@StringRes textResId: Int) {
 		isGone = text.isNullOrEmpty()
 	}
 }
+
+fun TextView.setTextColorAttr(@AttrRes attrResId: Int) {
+	val colors = context.obtainStyledAttributes(intArrayOf(attrResId)).use {
+		it.getColorStateList(0)
+	}
+	setTextColor(colors)
+}

app/src/main/res/drawable/bg_badge_empty.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape
+	xmlns:android="http://schemas.android.com/apk/res/android"
+	android:shape="rectangle">
+	<corners android:radius="5dp" />
+	<solid android:color="?colorBackgroundFloating" />
+	<stroke
+		android:width="1dp"
+		android:color="?colorOutline" />
+	<padding
+		android:bottom="2dp"
+		android:left="2dp"
+		android:right="2dp"
+		android:top="2dp" />
+</shape>

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

@@ -1,10 +1,12 @@
 <?xml version="1.0" encoding="utf-8"?>
-<FrameLayout
+<com.google.android.material.card.MaterialCardView
 	xmlns:android="http://schemas.android.com/apk/res/android"
 	xmlns:tools="http://schemas.android.com/tools"
 	android:layout_width="match_parent"
 	android:layout_height="wrap_content"
-	android:background="?attr/scrimBackground">
+	xmlns:app="http://schemas.android.com/apk/res-auto"
+	style="@style/Widget.Material3.CardView.Outlined"
+	app:cardBackgroundColor="?scrimBackground">
 
 	<org.koitharu.kotatsu.base.ui.widgets.CoverImageView
 		android:id="@+id/imageView_thumb"
@@ -13,18 +15,12 @@
 		android:scaleType="centerCrop"
 		tools:src="@drawable/ic_placeholder" />
 
-	<View
-		android:id="@+id/handle"
-		android:layout_width="match_parent"
-		android:layout_height="match_parent"
-		android:background="?selectableItemBackground" />
-
 	<TextView
 		android:id="@+id/textView_number"
 		android:layout_width="wrap_content"
 		android:layout_height="wrap_content"
 		android:layout_gravity="bottom|end"
-		android:layout_margin="8dp"
+		android:layout_margin="4dp"
 		android:ellipsize="none"
 		android:gravity="center"
 		android:minWidth="26dp"
@@ -34,4 +30,4 @@
 		tools:background="@drawable/bg_badge_default"
 		tools:text="2" />
 
-</FrameLayout>
+</com.google.android.material.card.MaterialCardView>