From e49c7fa2bf3bbc2eb6aa851c51d82f1cfd6b9212 Mon Sep 17 00:00:00 2001
From: Dean Lee <deanlee3@gmail.com>
Date: Tue, 24 Jan 2023 02:16:11 +0800
Subject: [PATCH] cabana: fix slider crash on exit if loadThumbnails is running
 (#27052)

---
 tools/cabana/videowidget.cc | 5 +++++
 tools/cabana/videowidget.h  | 1 +
 2 files changed, 6 insertions(+)

diff --git a/tools/cabana/videowidget.cc b/tools/cabana/videowidget.cc
index 7d46769a47..729302adaa 100644
--- a/tools/cabana/videowidget.cc
+++ b/tools/cabana/videowidget.cc
@@ -133,6 +133,11 @@ Slider::Slider(QWidget *parent) : QSlider(Qt::Horizontal, parent) {
   QObject::connect(can, &AbstractStream::streamStarted, this, &Slider::streamStarted);
 }
 
+Slider::~Slider() {
+  abort_load_thumbnail = true;
+  thumnail_future.waitForFinished();
+}
+
 void Slider::streamStarted() {
   abort_load_thumbnail = true;
   thumnail_future.waitForFinished();
diff --git a/tools/cabana/videowidget.h b/tools/cabana/videowidget.h
index 6b4c02c573..392db23512 100644
--- a/tools/cabana/videowidget.h
+++ b/tools/cabana/videowidget.h
@@ -18,6 +18,7 @@ class Slider : public QSlider {
 
 public:
   Slider(QWidget *parent);
+  ~Slider();
 
 private:
   void mousePressEvent(QMouseEvent *e) override;