From 2c33c4094d3f68f8bf1fd3347c04c41c94ec2c32 Mon Sep 17 00:00:00 2001
From: David Schnurr <schnurr@gmail.com>
Date: Wed, 8 Jan 2020 10:21:43 -0800
Subject: [PATCH] Fix for defocusing text inputs #315

---
 lib/utils/domFns.js | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/lib/utils/domFns.js b/lib/utils/domFns.js
index 6963da72..00b51ba9 100644
--- a/lib/utils/domFns.js
+++ b/lib/utils/domFns.js
@@ -158,14 +158,21 @@ export function addUserSelectStyles(doc: ?Document) {
 }
 
 export function removeUserSelectStyles(doc: ?Document) {
+  if (!doc) return;
   try {
-    if (doc && doc.body) removeClassName(doc.body, 'react-draggable-transparent-selection');
+    if (doc.body) removeClassName(doc.body, 'react-draggable-transparent-selection');
     // $FlowIgnore: IE
     if (doc.selection) {
       // $FlowIgnore: IE
       doc.selection.empty();
     } else {
-      window.getSelection().removeAllRanges();  // remove selection caused by scroll
+      // Remove selection caused by scroll, unless it's a focused input
+      // (we use doc.defaultView in case we're in an iframe)
+      const win = (doc.defaultView || window).getSelection();
+      const selection = win;
+      if (selection && selection.type !== 'Caret') {
+        selection.removeAllRanges();
+      }
     }
   } catch (e) {
     // probably IE