From 5b45b6285ded6a2ab1ad65a91efb965686ba5a10 Mon Sep 17 00:00:00 2001
From: Achilleas Villiotis <axillvs@gmail.com>
Date: Wed, 7 Aug 2024 14:56:27 +0300
Subject: [PATCH] Added onDrop functionality, need a way to allow click
 passthrough.

---
 NeuralAmpModeler/NeuralAmpModeler.cpp       |  3 ++
 NeuralAmpModeler/NeuralAmpModelerControls.h | 34 +++++++++++++++++++++
 2 files changed, 37 insertions(+)

diff --git a/NeuralAmpModeler/NeuralAmpModeler.cpp b/NeuralAmpModeler/NeuralAmpModeler.cpp
index 75e14227d..29dda3378 100644
--- a/NeuralAmpModeler/NeuralAmpModeler.cpp
+++ b/NeuralAmpModeler/NeuralAmpModeler.cpp
@@ -250,6 +250,9 @@ NeuralAmpModeler::NeuralAmpModeler(const InstanceInfo& info)
       helpSVG));
 
     pGraphics->AttachControl(new NAMAboutBoxControl(b, backgroundBitmap, style), kCtrlTagAboutBox)->Hide(true);
+   
+    // Implements drag and drop capabilities for plugin
+    pGraphics->AttachControl(new NAMDragDropControl(mainArea, loadModelCompletionHandler)); 
 
     pGraphics->ForAllControlsFunc([](IControl* pControl) {
       pControl->SetMouseEventsWhenDisabled(true);
diff --git a/NeuralAmpModeler/NeuralAmpModelerControls.h b/NeuralAmpModeler/NeuralAmpModelerControls.h
index ee5c3c282..6a3cdde24 100644
--- a/NeuralAmpModeler/NeuralAmpModelerControls.h
+++ b/NeuralAmpModeler/NeuralAmpModelerControls.h
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <cmath> // std::round
+#include <functional> // std::function
 #include <sstream> // std::stringstream
 #include "IControls.h"
 
@@ -558,3 +559,36 @@ class NAMAboutBoxControl : public IContainerBase
   int mAnimationTime = 200;
   bool mWillHide = false;
 };
+
+class NAMDragDropControl : public IControl
+{
+public:
+    NAMDragDropControl(const IRECT& bounds, 
+                       std::function<void(const WDL_String&, const WDL_String&)> loadModelCompletionHandler)
+        : IControl(bounds), loadModel(loadModelCompletionHandler)
+    {
+      mIgnoreMouse = true;
+    }
+
+    void Draw(IGraphics& g) override
+    {}
+
+    void OnDrop(const char* str) override
+    {
+        // Handle the dropped data
+        if (str)
+        {
+          std::cout << "Dropped data: " << str << std::endl;
+          
+          WDL_String fileName, directory;
+          fileName.Set(str);
+          directory.Set(str);
+          directory.remove_filepart(true);
+
+          loadModel(fileName, directory);
+        }
+    }
+
+private:
+  std::function<void(const WDL_String&, const WDL_String&)> loadModel;
+};