wpviews: whenever a view is updated or inserted, all the views are refreshed

[iseulde]

This is pretty bad for views that take a long time to load. It's not necessary at all to refresh *all* the views.

[DrewAPicture]

Hi Janneke, is this still an issue? Do we need a patch here?

[iseulde]

Yes, I'll try to make a patch asap.

[DrewAPicture]

Are you still planning to work up a patch for this Janneke?

[iseulde]

Looking into this right now.

[iseulde]

So the current problem: whenever you insert a view, paste a view or edit a view, every single view re-renders. For paste it's even worse. Whenever you paste *anything*, every single view re-renders. If it's just a gallery, it's not that annoying, but it there are iframes to load, it's very visible and annoying.

With the patch the render function check whether or not all the viewnodes for a particular instance have been rendered before. One unrendered view for that instance (which means that there are more of the same shortcodes in the editor) triggers rendering for all the viewnodes in that instance, but not all the viewnodes.

I also updated the refreshView function so that only the viewnodes for that instance are refreshed.

[iseulde]

.2: Not necessary to force rendering for a view refresh.

[wonderboymusic]

In 29530:

wpviews: whenever a view is updated or inserted, don't refresh ALL of the views.

Props avryl.
Fixes #28788.