From 71b571f22c6eaaa75054237ea6fccdaf39167a6b Mon Sep 17 00:00:00 2001
From: Aleksey Novikov <novikov82@gmail.com>
Date: Thu, 15 Feb 2024 13:51:34 +0300
Subject: [PATCH] fixed sanitization - cursor position
 https://github.com/surveyjs/survey-creator/issues/5185

---
 src/utils/utils.ts | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/src/utils/utils.ts b/src/utils/utils.ts
index 9d995a343a..da1c0f00de 100644
--- a/src/utils/utils.ts
+++ b/src/utils/utils.ts
@@ -388,10 +388,21 @@ export function sanitizeEditableContent(element: any, cleanLineBreaks: boolean =
 
     element.innerText = innerText;
     range = document.createRange();
-    range.setStart(element.childNodes[0], innerText.length - tail_len);
-    range.collapse(true);
-    selection.removeAllRanges();
-    selection.addRange(range);
+
+    const newPosition = innerText.length - tail_len;
+    let sumLen = 0;
+    for (let i = 0; i < element.childNodes.length; i++) {
+      const elementLen = element.childNodes[i].textContent.length;
+      if (elementLen == 0) continue;
+      if (sumLen + elementLen >= newPosition) {
+        range.setStart(element.childNodes[i], newPosition - sumLen);
+        range.collapse(true);
+        selection.removeAllRanges();
+        selection.addRange(range);
+        return;
+      }
+      sumLen += elementLen;
+    }
   }
 }
 function mergeValues(src: any, dest: any) {