Sync Volar 1.9

[johnsoncodehk]

Hi, I tried to make the required changes for the TS Plugin integration updated to Volar 1.9, can you see if it matches your original needs? Thanks.

[mizdra]

Thank you! I was going to update Volar.js too, but didn't have time to do it. So sending me the PR helps me a lot.

I will check the PR now.

[mizdra]

I am glad to remove many of the codes :)

[mizdra]

I found a problem with newly added assets not being suggested due to forgetting to implement getScriptFileNames. I fixed the implementation.: db48182

Other than that, there seems to be no problem. It matches my needs well enough. Thanks! @johnsoncodehk

[mizdra]

I will merge this PR if it is ok with you.

[johnsoncodehk]

Hi, what problems can it cause if we don't implement getScriptFileNames? Can you explain the steps to reproduce the problem?
I'm asking this question because getExternalFiles is already implemented, so getScriptFileNames is theoretically not needed.

[mizdra]

If the patch db48182 is not included, the added assets will not be suggested.

How to reproduce:

$ git checkout 6c19f97
$ npm run build

$ # Open example project with VS Code
$ cd examples/nextjs
$ code .

2023-07-26.0.23.26.mov

If the patch is included, the added assets are also suggested.

2023-07-26.0.32.19.mov

[johnsoncodehk]

Thanks! I'll investigate how to fix it from the framework, before that I think we can merge this PR, as the change is probably just an implementation improvement rather than a bug fix.

[mizdra]

It sounds good that Volar.js would take care of it 👍.

I'll merge this PR for now. Thanks for the contribution!