From cbe838ce2626cac50ab050f115a50ce4e5152a8a Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Tue, 17 Dec 2024 15:48:12 +0100
Subject: [PATCH] Fix crash when dragging plugins from sidebar

---
 gtk2_ardour/processor_box.cc | 4 ++++
 gtk2_ardour/region_editor.cc | 3 +++
 2 files changed, 7 insertions(+)

diff --git a/gtk2_ardour/processor_box.cc b/gtk2_ardour/processor_box.cc
index e1d65404d7..c1865d577c 100644
--- a/gtk2_ardour/processor_box.cc
+++ b/gtk2_ardour/processor_box.cc
@@ -2155,6 +2155,10 @@ not match the configuration of this track.");
 bool
 ProcessorBox::drag_refuse (DnDVBox<ProcessorEntry>* source, ProcessorEntry*)
 {
+	if (!source) {
+		/* handle drag from sidebar */
+		return false;
+	}
 	ProcessorBox* other = reinterpret_cast<ProcessorBox*> (source->get_data ("processorbox"));
 	return (other && other->_route == _route);
 }
diff --git a/gtk2_ardour/region_editor.cc b/gtk2_ardour/region_editor.cc
index 97e928a90f..bdd3772565 100644
--- a/gtk2_ardour/region_editor.cc
+++ b/gtk2_ardour/region_editor.cc
@@ -937,6 +937,9 @@ RegionEditor::RegionFxBox::delete_dragged_plugins (Region::RegionFxList const& f
 bool
 RegionEditor::RegionFxBox::drag_refuse (Gtkmm2ext::DnDVBox<RegionFxEntry>* source, RegionFxEntry*)
 {
+	if (!source) {
+		return false;
+	}
 	RegionFxBox* other = reinterpret_cast<RegionFxBox*> (source->get_data ("regionfxbox"));
 	return (other && other->_region == _region);
 }