From 49d109aa6bc4c43b8a6c47827944ce34c33d9cf8 Mon Sep 17 00:00:00 2001
From: Areloch <Areloch@gmail.com>
Date: Sat, 23 Sep 2017 15:43:09 -0500
Subject: [PATCH] Enables SDL's ability to drag and drop files onto the game
 window and have it call back into script for handling.

---
 .../source/windowManager/sdl/sdlWindowMgr.cpp | 40 +++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/Engine/source/windowManager/sdl/sdlWindowMgr.cpp b/Engine/source/windowManager/sdl/sdlWindowMgr.cpp
index 9e5ab437f..68adf002e 100644
--- a/Engine/source/windowManager/sdl/sdlWindowMgr.cpp
+++ b/Engine/source/windowManager/sdl/sdlWindowMgr.cpp
@@ -230,6 +230,13 @@ PlatformWindow *PlatformWindowManagerSDL::createWindow(GFXDevice *device, const
       Con::warnf("PlatformWindowManagerSDL::createWindow - created a window with no device!");
    }
 
+   //Set it up for drag-n-drop events 
+#ifdef TORQUE_TOOLS
+   SDL_EventState(SDL_DROPBEGIN, SDL_ENABLE);
+   SDL_EventState(SDL_DROPFILE, SDL_ENABLE);
+   SDL_EventState(SDL_DROPCOMPLETE, SDL_ENABLE);
+#endif
+
    linkWindow(window);
 
    return window;
@@ -311,6 +318,39 @@ void PlatformWindowManagerSDL::_process()
             break;
          }
 
+         case(SDL_DROPBEGIN):
+         {
+            if (!Con::isFunction("onDropBegin"))
+               break;
+
+            Con::executef("onDropBegin");
+         }
+
+         case (SDL_DROPFILE):
+         {
+            // In case if dropped file
+            if (!Con::isFunction("onDropFile"))
+               break;
+
+            char* fileName = evt.drop.file;
+
+            if (!Platform::isFile(fileName))
+               break;
+
+            Con::executef("onDropFile", StringTable->insert(fileName));
+
+            SDL_free(fileName);    // Free dropped_filedir memory
+            break;
+         }
+
+         case(SDL_DROPCOMPLETE):
+         {
+            if (!Con::isFunction("onDropEnd"))
+               break;
+
+            Con::executef("onDropEnd");
+         }
+
          default:
          {
             //Con::printf("Event: %d", evt.type);