Handlers for OpenDocument Apple Event?

[maddyaby]

I'm making an application with pywebview+pyinstaller that opens files. On Mac I want the user to be able to drag files/folders onto the application icon to open them, which requires handling the OpenDocument Apple Event. I figured out how to do this with pywebview like this:

I'm happy to add this feature in to the source but not sure exactly the best way to make it generally usable. I had a specific event queue that I was monitoring and then opening new webview windows when a new file was dropped. Not sure if that model makes sense for more general? Or adding an optional callback function? Thoughts?