fix ivy build update angular

[acb122]

ngcc compiler was failing this fixes it by exporting the correct files which are being exported in the ngmodule. I have tested it locally and fixes the error i was seeing using ivy.

[trakhimenok]

How this fixes Ivy build if it's simply disables Ivy mode?

[acb122]

The library is placed into npm not rendered in IVY mode making it usable for everyone. If you are then running IVY angular has a compile step that runs when you npm install on the postinstall stage it compiles it to ivy runtime code. This fixes the code so it compiles to ivy runtime code.

[acb122]

@cormacrelf Please could you merge this in? would love to use the library on the project i am working on.

[lincolnthree]

This still appears to be an issue with Angular 10, despite their compiler fallback optimizations. Just FYI.

[acb122]

Are you running my branch as its still not merged in, I am using my branch and it works fine with angular 10 Ivy.

@cormacrelf Please review so we can easily use your library.

[lincolnthree]

Interesting @acb122 - I tried your master branch (which was referenced in the PR) but was unable to get it to work --- it might actually work, but I am also using the multi-backend module so maybe this was just an additional issue.

I ended up making a whole bunch of local modifications and finally tracked the issue down to improper initialization of the default multi backend which was failing to create the HTML5ToTouch backend. This is what I ended up with after upgrading dnd-multi-backend@latest:

    SkyhookDndModule.forRoot({ backend: createDefaultMultiBackend(), options: HTML5ToTouch }),

export function createDefaultMultiBackend(): BackendFactory {
    return (manager, ctx) => {
      return MultiBackend(manager, ctx, HTML5ToTouch) as any;
    };
}