From 0ab573ced32652be58c4524abeac2e2bf7cce17f Mon Sep 17 00:00:00 2001
From: Alexander Lohnau <alexander.lohnau@gmx.de>
Date: Thu, 4 Jun 2020 08:23:05 +0000
Subject: [PATCH] Don't insert unprintable characters in KRunner

---
 lookandfeel/contents/runcommand/RunCommand.qml | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lookandfeel/contents/runcommand/RunCommand.qml b/lookandfeel/contents/runcommand/RunCommand.qml
index 41e14beb5..c42df8ba8 100644
--- a/lookandfeel/contents/runcommand/RunCommand.qml
+++ b/lookandfeel/contents/runcommand/RunCommand.qml
@@ -221,7 +221,10 @@ ColumnLayout {
                 } else if (ctrl && event.key === Qt.Key_K) {
                     decrementCurrentIndex()
                 } else if (event.text !== "") {
-                    queryField.text += event.text;
+                    // This prevents unprintable control characters from being inserted
+                    if (!/[\x00-\x1F\x7F]/.test(event.text)) {
+                        queryField.text += event.text;
+                    }
                     queryField.focus = true;
                 }
             }