From fa53849b4a0959ab7bf7295b79fab251b90aec3f Mon Sep 17 00:00:00 2001
From: David Schulz <david.schulz@qt.io>
Date: Mon, 17 Jan 2022 07:02:40 +0100
Subject: [PATCH] Editor: prevent using function hint widget while it is
 deleted

Task-number: QTCREATORBUG-26872
Change-Id: I634b488073670476ee3d5b53296e77b6779e5715
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
---
 .../texteditor/codeassist/functionhintproposalwidget.cpp     | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/plugins/texteditor/codeassist/functionhintproposalwidget.cpp b/src/plugins/texteditor/codeassist/functionhintproposalwidget.cpp
index 91a00386e14..926ebfde39b 100644
--- a/src/plugins/texteditor/codeassist/functionhintproposalwidget.cpp
+++ b/src/plugins/texteditor/codeassist/functionhintproposalwidget.cpp
@@ -154,7 +154,10 @@ FunctionHintProposalWidget::FunctionHintProposalWidget()
 
     connect(upArrow, &QAbstractButton::clicked, this, &FunctionHintProposalWidget::previousPage);
     connect(downArrow, &QAbstractButton::clicked, this, &FunctionHintProposalWidget::nextPage);
-    connect(d->m_popupFrame.data(), &QObject::destroyed, this, &FunctionHintProposalWidget::abort);
+    connect(d->m_popupFrame.data(), &QObject::destroyed, this, [this](){
+        qApp->removeEventFilter(this);
+        deleteLater();
+    });
 
     setFocusPolicy(Qt::NoFocus);
 }