Ensure replay loop is cancelled before window is hidden

* See also f56a989e4f - we don't want to make the replay loop always on
  top though

qrenderdoc/Code/QRDUtils.cpp

@@ -2533,6 +2533,18 @@ QString RDDialog::getSaveFileName(QWidget *parent, const QString &caption, const
   return QString();
 }
 
+void RDDialog::closeEvent(QCloseEvent *e)
+{
+  emit(aboutToClose(e));
+  QDialog::closeEvent(e);
+}
+
+void RDDialog::keyPressEvent(QKeyEvent *e)
+{
+  emit(keyPress(e));
+  QDialog::keyPressEvent(e);
+}
+
 bool QFileFilterModel::filterAcceptsRow(int source_row, const QModelIndex &source_parent) const
 {
   QModelIndex idx = sourceModel()->index(source_row, 0, source_parent);

qrenderdoc/Code/QRDUtils.h

@@ -917,8 +917,12 @@ public:
 class QMenu;
 
 // helper for doing a manual blocking invoke of a dialog
-struct RDDialog
+class RDDialog : public QDialog
 {
+private:
+  Q_OBJECT
+
+public:
   static const QMessageBox::StandardButtons YesNoCancel;
 
   static QString DefaultBrowsePath;
@@ -995,6 +999,14 @@ struct RDDialog
                                  const QString &dir = QString(), const QString &filter = QString(),
                                  QString *selectedFilter = NULL,
                                  QFileDialog::Options options = QFileDialog::Options());
+
+signals:
+  void aboutToClose(QCloseEvent *);
+  void keyPress(QKeyEvent *e);
+
+private:
+  void closeEvent(QCloseEvent *) override;
+  void keyPressEvent(QKeyEvent *e) override;
 };
 
 class QGridLayout;

qrenderdoc/Windows/MainWindow.cpp

@@ -2588,7 +2588,7 @@ void MainWindow::on_action_Start_Replay_Loop_triggered()
   if(!m_Ctx.IsCaptureLoaded())
     return;
 
-  QDialog popup;
+  RDDialog popup;
   popup.setWindowFlags(popup.windowFlags() & ~Qt::WindowContextHelpButtonHint);
   popup.setWindowIcon(windowIcon());
 
@@ -2651,6 +2651,13 @@ void MainWindow::on_action_Start_Replay_Loop_triggered()
 
   m_Ctx.Replay().AsyncInvoke([winData, id](IReplayController *r) { r->ReplayLoop(winData, id); });
 
+  QObject::connect(&popup, &RDDialog::aboutToClose,
+                   [this](QCloseEvent *) { m_Ctx.Replay().CancelReplayLoop(); });
+  QObject::connect(&popup, &RDDialog::keyPress, [this](QKeyEvent *e) {
+    if(e->matches(QKeySequence::Cancel))
+      m_Ctx.Replay().CancelReplayLoop();
+  });
+
   RDDialog::show(&popup);
 
   m_Ctx.Replay().CancelReplayLoop();