From 0d06d7cf0ca879da48d2f73bccdcaad8984d1dec Mon Sep 17 00:00:00 2001
From: Paul Walker <paul@pwjw.com>
Date: Sat, 28 Aug 2021 19:26:41 -0400
Subject: [PATCH] LastChance forwarding for Middle Button

Closes #4708
---
 src/gui/widgets/ModulatableSlider.cpp |  5 +++++
 src/gui/widgets/WidgetBaseMixin.h     | 13 +++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/src/gui/widgets/ModulatableSlider.cpp b/src/gui/widgets/ModulatableSlider.cpp
index 56703ed7db3..a432882a541 100644
--- a/src/gui/widgets/ModulatableSlider.cpp
+++ b/src/gui/widgets/ModulatableSlider.cpp
@@ -367,6 +367,11 @@ void ModulatableSlider::mouseDrag(const juce::MouseEvent &event)
 
 void ModulatableSlider::mouseDown(const juce::MouseEvent &event)
 {
+    if (forwardedMainFrameMouseDowns(event))
+    {
+        return;
+    }
+
     if (event.mods.isPopupMenu())
     {
         editTypeWas = NOEDIT;
diff --git a/src/gui/widgets/WidgetBaseMixin.h b/src/gui/widgets/WidgetBaseMixin.h
index 923e9153ac1..bfc748e251c 100644
--- a/src/gui/widgets/WidgetBaseMixin.h
+++ b/src/gui/widgets/WidgetBaseMixin.h
@@ -22,6 +22,7 @@
 #include "juce_gui_basics/juce_gui_basics.h"
 
 #include <unordered_set>
+#include "MainFrame.h"
 
 class SurgeGUIEditor;
 
@@ -124,6 +125,18 @@ struct WidgetBaseMixin : public Surge::GUI::SkinConsumingComponent,
         }
         return nullptr;
     }
+
+    bool forwardedMainFrameMouseDowns(const juce::MouseEvent &e)
+    {
+        if (e.mods.isMiddleButtonDown())
+        {
+            auto sge = firstListenerOfType<SurgeGUIEditor>();
+            if (sge && sge->frame)
+                sge->frame->mouseDown(e);
+            return true;
+        }
+        return false;
+    }
 };
 } // namespace Widgets
 } // namespace Surge