From b4422ad6b366c035b93295c630659cfc54c12e8c Mon Sep 17 00:00:00 2001
From: Tobias Andersen <j.tobiasandersen@gmail.com>
Date: Mon, 21 May 2018 08:30:37 +0200
Subject: [PATCH] Fix invalid ranges in getEventRange (#1849)

---
 packages/slate-react/src/utils/get-event-range.js | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/packages/slate-react/src/utils/get-event-range.js b/packages/slate-react/src/utils/get-event-range.js
index cc23c9472..5126e9344 100644
--- a/packages/slate-react/src/utils/get-event-range.js
+++ b/packages/slate-react/src/utils/get-event-range.js
@@ -36,9 +36,17 @@ function getEventRange(event, value) {
 
     const text = node.getFirstText()
     const range = Range.create()
-    return isPrevious
-      ? range.moveToEndOf(document.getPreviousText(text.key))
-      : range.moveToStartOf(document.getNextText(text.key))
+
+    if (isPrevious) {
+      const previousText = document.getPreviousText(text.key)
+
+      if (previousText) {
+        return range.moveToEndOf(previousText)
+      }
+    }
+
+    const nextText = document.getNextText(text.key)
+    return nextText ? range.moveToStartOf(nextText) : null
   }
 
   // Else resolve a range from the caret position where the drop occured.