From 51e940260af183228798c7741646ac88252e1f3b Mon Sep 17 00:00:00 2001
From: Liang Qi <liang.qi@qt.io>
Date: Thu, 17 Dec 2020 17:22:48 +0100
Subject: QInputControl: accept surrogate category character

See also https://unicodebook.readthedocs.io/unicode_encodings.html#utf-16-surrogate-pairs .

Fixes: QTBUG-89184
Change-Id: I04eff7f42f0030346603a7b31e4ac854a477030c
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
(cherry picked from commit e688b99995b8c624dbcea296c99fb89262d29e15)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
---
 src/gui/text/qinputcontrol.cpp | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/gui')

diff --git a/src/gui/text/qinputcontrol.cpp b/src/gui/text/qinputcontrol.cpp
index 3381fdb673..80d5e6af4e 100644
--- a/src/gui/text/qinputcontrol.cpp
+++ b/src/gui/text/qinputcontrol.cpp
@@ -79,6 +79,9 @@ bool QInputControl::isAcceptableInput(const QKeyEvent *event) const
     if (c.category() == QChar::Other_PrivateUse)
         return true;
 
+    if (c.isHighSurrogate() && text.length() > 1 && text.at(1).isLowSurrogate())
+        return true;
+
     if (m_type == TextEdit && c == QLatin1Char('\t'))
         return true;
 
-- 
cgit v1.2.3