Highlighting part of library text when searching in library

Only for comfort grid and list view

Also show artist in comfort gird if it can fit

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryGridHolder.kt

@@ -11,6 +11,7 @@ import coil.size.Scale
 import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.data.image.coil.loadLibraryManga
 import eu.kanade.tachiyomi.databinding.MangaGridItemBinding
+import eu.kanade.tachiyomi.util.lang.highlightText
 
 /**
  * Class used to hold the displayed data of a manga in the library, like the cover or the title.
@@ -55,10 +56,25 @@ class LibraryGridHolder(
     override fun onSetValues(item: LibraryItem) {
         // Update the title and subtitle of the manga.
         binding.constraintLayout.isVisible = !item.manga.isBlank()
-        binding.title.text = item.manga.title
-        binding.subtitle.text = item.manga.author?.trim()
+        binding.title.text = item.manga.title.highlightText(item.filter, color)
+        val authorArtist = if (item.manga.author == item.manga.artist || item.manga.artist.isNullOrBlank()) {
+            item.manga.author?.trim() ?: ""
+        } else {
+            listOfNotNull(
+                item.manga.author?.trim()?.takeIf { it.isNotBlank() },
+                item.manga.artist?.trim()?.takeIf { it.isNotBlank() }
+            ).joinToString(", ")
+        }
+        binding.subtitle.text = authorArtist.highlightText(item.filter, color)
 
-        binding.compactTitle.text = binding.title.text
+        binding.compactTitle.text = binding.title.text?.toString()?.highlightText(item.filter, color)
+
+        binding.title.post {
+            val hasAuthorInFilter =
+                item.filter.isNotBlank() && authorArtist.contains(item.filter, true)
+            binding.subtitle.isVisible = binding.title.lineCount <= 1 || hasAuthorInFilter
+            binding.title.maxLines = if (hasAuthorInFilter) 1 else 2
+        }
 
         setUnreadBadge(binding.unreadDownloadBadge.badgeView, item)
         setReadingButton(item)

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryHolder.kt

@@ -1,10 +1,12 @@
 package eu.kanade.tachiyomi.ui.library
 
 import android.view.View
+import androidx.core.graphics.ColorUtils
 import androidx.core.view.isVisible
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.source.LocalSource
 import eu.kanade.tachiyomi.ui.base.holder.BaseFlexibleViewHolder
+import eu.kanade.tachiyomi.util.system.getResourceColor
 
 /**
  * Generic class used to hold the displayed data of a manga in the library.
@@ -18,6 +20,8 @@ abstract class LibraryHolder(
     val adapter: LibraryCategoryAdapter
 ) : BaseFlexibleViewHolder(view, adapter) {
 
+    protected val color = ColorUtils.setAlphaComponent(itemView.context.getResourceColor(R.attr.colorAccent), 75)
+
     /**
      * Method called from [LibraryCategoryAdapter.onBindViewHolder]. It updates the data for this
      * holder with the given manga.

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryItem.kt

@@ -33,6 +33,7 @@ class LibraryItem(
 
     var downloadCount = -1
     var unreadType = 2
+    var filter = ""
 
     private val sourceManager: SourceManager by injectLazy()
     private val uniformSize: Boolean
@@ -142,6 +143,7 @@ class LibraryItem(
      * @return true if the manga should be included, false otherwise.
      */
     override fun filter(constraint: String): Boolean {
+        filter = constraint
         if (manga.isBlank() && manga.title.isBlank()) {
             return constraint.isEmpty()
         }

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryListHolder.kt

@@ -7,6 +7,7 @@ import coil.clear
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.image.coil.loadLibraryManga
 import eu.kanade.tachiyomi.databinding.MangaListItemBinding
+import eu.kanade.tachiyomi.util.lang.highlightText
 import eu.kanade.tachiyomi.util.system.dpToPx
 import eu.kanade.tachiyomi.util.view.updateLayoutParams
 
@@ -61,14 +62,25 @@ class LibraryListHolder(
         binding.title.textAlignment = View.TEXT_ALIGNMENT_TEXT_START
 
         // Update the binding.title of the manga.
-        binding.title.text = item.manga.title
+        binding.title.text = item.manga.title.highlightText(item.filter, color)
         setUnreadBadge(binding.unreadDownloadBadge.badgeView, item)
 
-        binding.subtitle.text = item.manga.author?.trim()
-        binding.title.post {
-            if (binding.title.text == item.manga.title) {
-                binding.subtitle.isVisible = binding.title.lineCount == 1 && !item.manga.author.isNullOrBlank()
+        val authorArtist = if (item.manga.author == item.manga.artist || item.manga.artist.isNullOrBlank()) {
+            item.manga.author?.trim() ?: ""
+        } else {
+            listOfNotNull(
+                item.manga.author?.trim()?.takeIf { it.isNotBlank() },
+                item.manga.artist?.trim()?.takeIf { it.isNotBlank() }
+            ).joinToString(", ")
         }
+
+        binding.subtitle.text = authorArtist.highlightText(item.filter, color)
+        binding.title.maxLines = 2
+        binding.title.post {
+            val hasAuthorInFilter =
+                item.filter.isNotBlank() && authorArtist.contains(item.filter, true)
+            binding.subtitle.isVisible = binding.title.lineCount <= 1 || hasAuthorInFilter
+            binding.title.maxLines = if (hasAuthorInFilter) 1 else 2
         }
 
         // Update the cover.

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

@@ -100,6 +100,7 @@ fun CharSequence.tintText(@ColorInt color: Int): Spanned {
 
 fun String.highlightText(highlight: String, @ColorInt color: Int): Spanned {
     val wordToSpan: Spannable = SpannableString(this)
+    if (highlight.isBlank()) return wordToSpan
     indexesOf(highlight).forEach {
         wordToSpan.setSpan(BackgroundColorSpan(color), it, it + highlight.length, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE)
     }