From 72940a25e30e34361c9ad294007a5d707404d856 Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Mon, 6 Jun 2022 12:20:22 +0400
Subject: [PATCH] Fix possible crash in checkbox.

---
 ui/widgets/checkbox.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/ui/widgets/checkbox.cpp b/ui/widgets/checkbox.cpp
index 6bfe533..00d43f8 100644
--- a/ui/widgets/checkbox.cpp
+++ b/ui/widgets/checkbox.cpp
@@ -707,6 +707,7 @@ void Checkbox::mouseMoveEvent(QMouseEvent *e) {
 }
 
 void Checkbox::mouseReleaseEvent(QMouseEvent *e) {
+	const auto weak = Ui::MakeWeak(this);
 	if (auto activated = _activatingHandler = ClickHandler::unpressed()) {
 		const auto button = e->button();
 		crl::on_main(this, [=] {
@@ -715,7 +716,9 @@ void Checkbox::mouseReleaseEvent(QMouseEvent *e) {
 		});
 	}
 	RippleButton::mouseReleaseEvent(e);
-	_activatingHandler = nullptr;
+	if (weak) {
+		_activatingHandler = nullptr;
+	}
 }
 
 void Checkbox::leaveEventHook(QEvent *e) {