From 6f81dbe674c8277bb080e026432a1a0453653678 Mon Sep 17 00:00:00 2001
From: Alexander Volkov <a.volkov@rusbitech.ru>
Date: Thu, 12 Jul 2018 14:32:00 +0300
Subject: [PATCH] QLineEdit: Fix behavior of DeleteStartOfWord key

DeleteStartOfWord key behaves like Delete key when the cursor
is at the beginning of the line. Do nothing instead.

Task-number: QTBUG-65855
Change-Id: I56402961b44ec6fe3a382df68a76db36891c4522
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
---
 src/widgets/widgets/qwidgetlinecontrol.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/widgets/widgets/qwidgetlinecontrol.cpp b/src/widgets/widgets/qwidgetlinecontrol.cpp
index 623ca5b0a1..c4a928410b 100644
--- a/src/widgets/widgets/qwidgetlinecontrol.cpp
+++ b/src/widgets/widgets/qwidgetlinecontrol.cpp
@@ -1840,7 +1840,8 @@ void QWidgetLineControl::processKeyEvent(QKeyEvent* event)
     else if (event == QKeySequence::DeleteStartOfWord) {
         if (!isReadOnly()) {
             cursorWordBackward(true);
-            del();
+            if (hasSelectedText())
+                del();
         }
     } else if (event == QKeySequence::DeleteCompleteLine) {
         if (!isReadOnly()) {