fix arbitrary content being dragged and dropped causing errors

Fixes #2630

gui/builtinAdditionPanes/boosterView.py

@@ -43,6 +43,10 @@ class BoosterViewDrop(wx.DropTarget):
         if self.GetData():
             dragged_data = DragDropHelper.data
             data = dragged_data.split(':')
+
+            if dragged_data is None:
+                return t
+
             self.dropFn(x, y, data)
         return t
 

gui/builtinAdditionPanes/cargoView.py

@@ -41,6 +41,10 @@ class CargoViewDrop(wx.DropTarget):
     def OnData(self, x, y, t):
         if self.GetData():
             dragged_data = DragDropHelper.data
+
+            if dragged_data is None:
+                return t
+
             data = dragged_data.split(':')
             self.dropFn(x, y, data)
         return t

gui/builtinAdditionPanes/commandView.py

@@ -56,6 +56,10 @@ class CommandViewDrop(wx.DropTarget):
     def OnData(self, x, y, t):
         if self.GetData():
             dragged_data = DragDropHelper.data
+
+            if dragged_data is None:
+                return t
+
             data = dragged_data.split(':')
             self.dropFn(x, y, data)
         return t

gui/builtinAdditionPanes/droneView.py

@@ -52,6 +52,10 @@ class DroneViewDrop(wx.DropTarget):
     def OnData(self, x, y, t):
         if self.GetData():
             dragged_data = DragDropHelper.data
+
+            if dragged_data is None:
+                return t
+
             data = dragged_data.split(':')
             self.dropFn(x, y, data)
         return t

gui/builtinAdditionPanes/fighterView.py

@@ -49,6 +49,10 @@ class FighterViewDrop(wx.DropTarget):
     def OnData(self, x, y, t):
         if self.GetData():
             dragged_data = DragDropHelper.data
+
+            if dragged_data is None:
+                return t
+
             data = dragged_data.split(':')
             self.dropFn(x, y, data)
         return t

gui/builtinAdditionPanes/implantView.py

@@ -46,6 +46,10 @@ class ImplantViewDrop(wx.DropTarget):
     def OnData(self, x, y, t):
         if self.GetData():
             dragged_data = DragDropHelper.data
+
+            if dragged_data is None:
+                return t
+
             data = dragged_data.split(':')
             self.dropFn(x, y, data)
         return t

gui/builtinAdditionPanes/projectedView.py

@@ -65,6 +65,10 @@ class ProjectedViewDrop(wx.DropTarget):
     def OnData(self, x, y, t):
         if self.GetData():
             dragged_data = DragDropHelper.data
+
+            if dragged_data is None:
+                return t
+
             data = dragged_data.split(':')
             self.dropFn(x, y, data)
         return t

gui/builtinViews/fittingView.py

@@ -127,6 +127,10 @@ class FittingViewDrop(wx.DropTarget):
         if self.GetData():
             dragged_data = DragDropHelper.data
             # pyfalog.debug("fittingView: recieved drag: " + self.dropData.GetText())
+
+            if dragged_data is None:
+                return t
+
             data = dragged_data.split(':')
             self.dropFn(x, y, data)
         return t