[LyX/master] After confirm cancel, hide busy and cancel buttons

[Scott Kostyshak]

commit 70a71a824be37f1e03d0c21c3796a223d227f7db
Author: Scott Kostyshak <skostysh at lyx.org>
Date:   Tue Nov 22 14:24:11 2022 -0500

    After confirm cancel, hide busy and cancel buttons
---
 src/frontends/qt/GuiView.cpp |    9 ++++++++-
 src/frontends/qt/GuiView.h   |    2 ++
 2 files changed, 10 insertions(+), 1 deletions(-)

diff --git a/src/frontends/qt/GuiView.cpp b/src/frontends/qt/GuiView.cpp
index 2ec5037..82a6f17 100644
--- a/src/frontends/qt/GuiView.cpp
+++ b/src/frontends/qt/GuiView.cpp
@@ -663,6 +663,9 @@ GuiView::GuiView(int id)
 		processStop, SLOT(hide()));
 	connect(processStop, SIGNAL(pressed()), this, SLOT(checkCancelBackground()));
 
+	connect(this, SIGNAL(scriptKilled()), busySVG, SLOT(hide()));
+	connect(this, SIGNAL(scriptKilled()), processStop, SLOT(hide()));
+
 	stat_counts_ = new GuiClickableLabel(statusBar());
 	stat_counts_->setAlignment(Qt::AlignCenter);
 	stat_counts_->setFrameStyle(QFrame::StyledPanel);
@@ -831,8 +834,12 @@ void GuiView::checkCancelBackground()
 	int const ret =
 		Alert::prompt(ttl, msg, 1, 1,
 			_("&Cancel export"), _("Co&ntinue"));
-	if (ret == 0)
+	if (ret == 0) {
 		Systemcall::killscript();
+		// stop busy signal immediately so that in the subsequent
+		// "Export canceled" prompt the status bar icons are accurate.
+		Q_EMIT scriptKilled();
+	}
 }
 
 void GuiView::statsPressed()
diff --git a/src/frontends/qt/GuiView.h b/src/frontends/qt/GuiView.h
index cbe805e..5b22ea5 100644
--- a/src/frontends/qt/GuiView.h
+++ b/src/frontends/qt/GuiView.h
@@ -228,6 +228,8 @@ Q_SIGNALS:
 	void bufferViewChanged();
 	/// emitted when zoom is modified
 	void currentZoomChanged(int);
+	/// emitted when script is killed (e.g., user cancels export)
+	void scriptKilled();
 
 public Q_SLOTS:
 	///