[OpenLayers-Dev] How to use right-click to finish drawing a Polygon in OpenLayers?

[Devdatta Tengshe]

I'm using OpenLayers 2.13 and the DrawFeature control. By Default, the
Polygon is completed, when you double click.
Some of our clients are requesting that we allow the mouse right-click, to
finish the polygon.
I tried adding a rightclick function to the OpenLayers.Handler.Polygon
class, but it is never called.
I also confirmed that the right click event is being registered in the
activate method of the OpenLayers.Handler class.

How do I override this default behavior to allow the mouse right-click to
finish the polygon?

Regards,
Devdatta
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