Custom handling of .js files in custom projects

Hey there,

I'm writing a VS package for VS 2010 and above.

Here's a simple project which reproduces my issue and what I try to achieve:

MyScript.zip

Basically, I create:

• A custom project type (myproj) using the MPF
• A classifier for a custom language MyScript
• A language info for the language MyScript

The tricky thing is that I need for my script language to use the .js extension.

So I can neither use:

[ProvideLanguageExtension(typeof(MyScriptLanguageInfo), ".js")]

nor

[Export]
[FileExtension(".js")]
[ContentType(MyScriptContentType)]
internal static FileExtensionToContentTypeDefinition MyScriptFileExtensionDefinition;

because either of those will override and break the default handling of .js files outside of .myproj projects.

I have the feeling that I'm not that far away and that it has something to do with my editor factory.

I'd love if someone could have a look at the repro (it contains the MyScript solution and a sample myproj, I made it super easy to try) and provide some guidance.

Thanks!