From 8c14bea13918bea070df1e9ac1ea05a0f7867024 Mon Sep 17 00:00:00 2001
From: Nad Alaba <37968805+nadalaba@users.noreply.github.com>
Date: Thu, 9 Apr 2026 19:32:47 +0300
Subject: [PATCH 1/2] fix double lineJump in zen mode

---
 frontend/src/ts/test/test-ui.ts | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/frontend/src/ts/test/test-ui.ts b/frontend/src/ts/test/test-ui.ts
index 71e3ca0fa80c..9dc4bd1cf334 100644
--- a/frontend/src/ts/test/test-ui.ts
+++ b/frontend/src/ts/test/test-ui.ts
@@ -80,6 +80,7 @@ const wordsWrapperEl = qsr(".pageTest #wordsWrapper");
 const resultWordsHistoryEl = qsr(".pageTest #resultWordsHistory");
 
 export let activeWordTop = 0;
+export let wordTopBeforeLineJump = 0;
 export let activeWordHeight = 0;
 export let lineTransition = false;
 export let currentTestLine = 0;
@@ -902,7 +903,14 @@ export async function updateWordLetters({
         if (!Config.showAllLines) {
           const wordTopAfterUpdate = wordAtIndex.getOffsetTop();
           if (wordTopAfterUpdate > activeWordTop) {
-            await lineJump(activeWordTop, true);
+            let jump = false;
+            if (!lineTransition) {
+              wordTopBeforeLineJump = wordTopAfterUpdate;
+              jump = true;
+            } else if (wordTopAfterUpdate > wordTopBeforeLineJump) {
+              jump = true;
+            }
+            if (jump) await lineJump(activeWordTop);
           }
         }
       }

From 03ea6456c4efd0936cff5deb92286d86d8db3950 Mon Sep 17 00:00:00 2001
From: Nad Alaba <37968805+nadalaba@users.noreply.github.com>
Date: Thu, 9 Apr 2026 20:19:53 +0300
Subject: [PATCH 2/2] remove unneeded export

---
 frontend/src/ts/test/test-ui.ts | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

diff --git a/frontend/src/ts/test/test-ui.ts b/frontend/src/ts/test/test-ui.ts
index 9dc4bd1cf334..a8b5e2b456e9 100644
--- a/frontend/src/ts/test/test-ui.ts
+++ b/frontend/src/ts/test/test-ui.ts
@@ -80,10 +80,10 @@ const wordsWrapperEl = qsr(".pageTest #wordsWrapper");
 const resultWordsHistoryEl = qsr(".pageTest #resultWordsHistory");
 
 export let activeWordTop = 0;
-export let wordTopBeforeLineJump = 0;
 export let activeWordHeight = 0;
-export let lineTransition = false;
-export let currentTestLine = 0;
+let wordTopBeforeLineJump = 0;
+let lineTransition = false;
+let currentTestLine = 0;
 export let resultCalculating = false;
 
 export function setResultCalculating(val: boolean): void {
@@ -1171,19 +1171,13 @@ function removeTestElements(lastElementIndexToRemove: number): void {
 
 let currentLinesJumping = 0;
 
-export async function lineJump(
-  currentTop: number,
-  force = false,
-): Promise<void> {
+async function lineJump(currentTop: number, force = false): Promise<void> {
   //last word of the line
   if (currentTestLine > 0 || force) {
     const hideBound = currentTop;
 
     const activeWordEl = getActiveWordElement();
-    if (!activeWordEl) {
-      // resolve();
-      return;
-    }
+    if (!activeWordEl) return;
 
     // index of the active word in all #words.children
     // (which contains .word/.newline/.beforeNewline/.afterNewline elements)