Tweak to DragAndDropContainer to avoid problems detecting the window that's being dragged over.

modules/juce_gui_basics/mouse/juce_DragAndDropContainer.cpp

@@ -215,13 +215,28 @@ private:
         return dynamic_cast<DragAndDropTarget*> (currentlyOverComp.get());
     }
 
+    static Component* findDesktopComponentBelow (Point<int> screenPos)
+    {
+        Desktop& desktop = Desktop::getInstance();
+
+        for (int i = desktop.getNumComponents(); --i >= 0;)
+        {
+            Component* c = desktop.getComponent(i);
+
+            if (Component* hit = c->getComponentAt (c->getLocalPoint (nullptr, screenPos)))
+                return hit;
+        }
+
+        return nullptr;
+    }
+
     DragAndDropTarget* findTarget (Point<int> screenPos, Point<int>& relativePos,
                                    Component*& resultComponent) const
     {
         Component* hit = getParentComponent();
 
         if (hit == nullptr)
-            hit = Desktop::getInstance().findComponentAt (screenPos);
+            hit = findDesktopComponentBelow (screenPos);
         else
             hit = hit->getComponentAt (hit->getLocalPoint (nullptr, screenPos));
 

modules/juce_gui_basics/native/juce_linux_Windowing.cpp

@@ -1087,9 +1087,7 @@ public:
         {
             for (int i = windowListSize; --i >= 0;)
             {
-                LinuxComponentPeer* const peer = LinuxComponentPeer::getPeerFor (windowList[i]);
-
-                if (peer != 0)
+                if (LinuxComponentPeer* const peer = LinuxComponentPeer::getPeerFor (windowList[i]))
                 {
                     result = (peer == this);
                     break;