[elton2048]

• Provided new variable grip-real-time-refresh to enable such feature
• Changed to remove preview file even the process is not existed

Note

I've only tried using mdopen for the renderer, I assume there is no special handling for other renderer.

[seagle0128]

Correct. All renders handling are same.

Actually the feature of realtime/instant previews was added before, twice. But removed due to the performance issue. Currently mdopen and go-grip may have the better performance to render the pages. We can add it back.

I went through the changes. I got some questions:

1. Did you check renders for org files? It was pretty slow before.
2. There is only add-hook for after-change-functions, while not remove-hook.

Reference: 24e9f8e, 1a61bb7, 7f1effc

[elton2048]

1. No, I think rendering for org files is a bit more complicated to handle, thus I think it's better to do so after this PR, separating the afford.
2. That's something I missed

I think it's better to see if this support is a really wish so to proceed the change or not, I could follow that up if so, or maybe reverting those commits are more easier. Anyway thanks for the review :)

[seagle0128]

Okay. Then please move forward, please.