From 41ba4768680bd8c5fd633c5f39772b7d0db87f2f Mon Sep 17 00:00:00 2001
From: mkhutornyi <mkhutorniy@gmail.com>
Date: Wed, 20 Dec 2023 16:49:11 -0500
Subject: [PATCH] fix crash when trying to scroll pdf preview

---
 .../AttachmentView/AttachmentViewPdf/BaseAttachmentViewPdf.js   | 2 +-
 .../AttachmentView/AttachmentViewPdf/index.android.js           | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/components/Attachments/AttachmentView/AttachmentViewPdf/BaseAttachmentViewPdf.js b/src/components/Attachments/AttachmentView/AttachmentViewPdf/BaseAttachmentViewPdf.js
index 40887ddee697..de14f848c37e 100644
--- a/src/components/Attachments/AttachmentView/AttachmentViewPdf/BaseAttachmentViewPdf.js
+++ b/src/components/Attachments/AttachmentView/AttachmentViewPdf/BaseAttachmentViewPdf.js
@@ -30,7 +30,7 @@ function BaseAttachmentViewPdf({
             onScaleChangedProp(scale);
 
             // When a pdf is shown in a carousel, we want to disable the pager scroll when the pdf is zoomed in
-            if (isUsedInCarousel) {
+            if (isUsedInCarousel && attachmentCarouselPagerContext) {
                 const shouldPagerScroll = scale === 1;
 
                 attachmentCarouselPagerContext.onPinchGestureChange(!shouldPagerScroll);
diff --git a/src/components/Attachments/AttachmentView/AttachmentViewPdf/index.android.js b/src/components/Attachments/AttachmentView/AttachmentViewPdf/index.android.js
index 308d3cf2c0ba..6d510d234512 100644
--- a/src/components/Attachments/AttachmentView/AttachmentViewPdf/index.android.js
+++ b/src/components/Attachments/AttachmentView/AttachmentViewPdf/index.android.js
@@ -18,7 +18,7 @@ function AttachmentViewPdf(props) {
     const Pan = Gesture.Pan()
         .manualActivation(true)
         .onTouchesMove((evt) => {
-            if (offsetX.value !== 0 && offsetY.value !== 0) {
+            if (offsetX.value !== 0 && offsetY.value !== 0 && attachmentCarouselPagerContext) {
                 // if the value of X is greater than Y and the pdf is not zoomed in,
                 // enable  the pager scroll so that the user
                 // can swipe to the next attachment otherwise disable it.