From 8be33e0f81273d30678fc5f258ae238bc434c77a Mon Sep 17 00:00:00 2001
From: Lee Shuen Fei <109432084+LeeSF03@users.noreply.github.com>
Date: Tue, 15 Apr 2025 07:05:15 +0700
Subject: [PATCH] feat: Display the number of filtered manga in each category's
  header when searching in library (#387)

---
 .../tachiyomi/ui/library/LibraryCategoryAdapter.kt   |  1 +
 .../tachiyomi/ui/library/LibraryHeaderHolder.kt      | 12 +++++++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryCategoryAdapter.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryCategoryAdapter.kt
index 4bd14503bd..dc63b2db5e 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryCategoryAdapter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryCategoryAdapter.kt
@@ -173,6 +173,7 @@ class LibraryCategoryAdapter(val controller: LibraryController?) :
         }
         isLongPressDragEnabled = libraryListener?.canDrag() == true && s.isNullOrBlank()
         setItemsPerCategoryMap()
+        notifyDataSetChanged()
     }
 
     private fun getFirstLetter(name: String): String {
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryHeaderHolder.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryHeaderHolder.kt
index 435c209366..85be9b426a 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryHeaderHolder.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryHeaderHolder.kt
@@ -186,7 +186,17 @@ class LibraryHeaderHolder(val view: View, val adapter: LibraryCategoryAdapter) :
 
         binding.categoryTitle.text = categoryName +
             if (adapter.showNumber) {
-                " (${adapter.itemsPerCategory[item.catId]})"
+                val filteredCount = adapter.currentItems.count {
+                    it is LibraryMangaItem && it.header?.catId == item.catId
+                }
+                val totalCount = adapter.itemsPerCategory[item.catId] ?: 0
+                val searchText = adapter.getFilter(String::class.java)
+                var countText = if (searchText.isNullOrBlank()) {
+                    " ($totalCount)"
+                } else {
+                    " ($filteredCount/$totalCount)"
+                }
+                countText
             } else { "" }
         if (category.sourceId != null) {
             val icon = adapter.sourceManager.get(category.sourceId!!)?.icon()