From 2bb166e678e73d1ff136b8c2d97c6b089372f985 Mon Sep 17 00:00:00 2001
From: CD-Z <p_loser_Austria@gmx.at>
Date: Tue, 15 Aug 2023 17:38:28 +0200
Subject: [PATCH] fixed NaN error

---
 src/screens/reader/ReaderScreen.js                        | 8 +++++---
 .../components/stringCreators/horizontalReaderPages.ts    | 6 +++++-
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/src/screens/reader/ReaderScreen.js b/src/screens/reader/ReaderScreen.js
index bae828c0b1..0eed7a2ef2 100644
--- a/src/screens/reader/ReaderScreen.js
+++ b/src/screens/reader/ReaderScreen.js
@@ -214,9 +214,11 @@ const ChapterContent = ({ route, navigation }) => {
     }
   });
   useEffect(() => {
-    webViewRef?.current?.injectJavaScript(
-      `${!readerPages} && document.querySelector('chapter').style.transform = 'translate(0%)';`,
-    );
+    if (!readerPages) {
+      webViewRef?.current?.injectJavaScript(
+        "document.querySelector('chapter').style.transform = 'translate(0%)';",
+      );
+    }
   }, [readerPages]);
   const scrollTo = useCallback(
     offset => {
diff --git a/src/screens/reader/components/stringCreators/horizontalReaderPages.ts b/src/screens/reader/components/stringCreators/horizontalReaderPages.ts
index edf806b800..e34ebb9b38 100644
--- a/src/screens/reader/components/stringCreators/horizontalReaderPages.ts
+++ b/src/screens/reader/components/stringCreators/horizontalReaderPages.ts
@@ -17,10 +17,14 @@ infoBox.classList.add("hidden");
 id("spacer").style.height = infoBox.scrollHeight + 'px';
 
 const pages = (Math.ceil(textWidth / clientWidth) - 1);
-page = 0;
+let page = 0;
+
 
 navRight.addEventListener("click", () => {
   page = select("chapter").getAttribute('data-page');
+  if (isNaN(page)) {
+    page = 0;
+  }
   if (page < pages  ) {
     page++;
     movePage();