From 59f9e556ec4a1a417320a4485ecd9420cef614d1 Mon Sep 17 00:00:00 2001
From: Ahmad Ansori Palembani <palembani@gmail.com>
Date: Sat, 31 Aug 2024 12:14:39 +0700
Subject: [PATCH] fix: Prevent NPE crashes on touch event

---
 .../tachiyomi/ui/library/LibraryHeaderHolder.kt   | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

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 a024b5afa8..a02248ad90 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
@@ -15,12 +15,10 @@ import androidx.core.view.marginTop
 import androidx.core.view.updateLayoutParams
 import androidx.core.view.updatePadding
 import androidx.swiperefreshlayout.widget.CircularProgressDrawable
+import co.touchlab.kermit.Logger
 import com.github.florent37.viewtooltip.ViewTooltip
 import eu.davidea.flexibleadapter.SelectableAdapter
 import eu.kanade.tachiyomi.R
-import yokai.i18n.MR
-import yokai.util.lang.getString
-import dev.icerock.moko.resources.compose.stringResource
 import eu.kanade.tachiyomi.data.database.models.Category
 import eu.kanade.tachiyomi.data.library.LibraryUpdateJob
 import eu.kanade.tachiyomi.data.preference.PreferencesHelper
@@ -36,6 +34,8 @@ import eu.kanade.tachiyomi.util.view.setText
 import eu.kanade.tachiyomi.util.view.text
 import uy.kohesive.injekt.Injekt
 import uy.kohesive.injekt.api.get
+import yokai.i18n.MR
+import yokai.util.lang.getString
 
 class LibraryHeaderHolder(val view: View, val adapter: LibraryCategoryAdapter) :
     BaseFlexibleViewHolder(view, adapter, true) {
@@ -96,11 +96,18 @@ class LibraryHeaderHolder(val view: View, val adapter: LibraryCategoryAdapter) :
                 }
                 when (event?.action) {
                     MotionEvent.ACTION_CANCEL, MotionEvent.ACTION_UP -> {
-                        itemView.parent.requestDisallowInterceptTouchEvent(false)
+                        try {
+                            itemView.parent.requestDisallowInterceptTouchEvent(false)
+                        } catch (e: NullPointerException) {
+                            Logger.e(e) { "Failed to request disallow intercept touch event" }
+                            return@setOnTouchListener false
+                        }
+
                         if (isCancelling) {
                             isCancelling = false
                             return@setOnTouchListener false
                         }
+
                         val result = gestureDetector.onTouchEvent(event)
                         if (!result) {
                             val anim = binding.categoryHeaderLayout.animate().setDuration(150L)