wip: web components

[bennypowers]

Closes #363

An initial rough draft of the idea, still just at the noodling phase, but better to make a start than navel-gaze

[bglw]

Awesome, @bennypowers thanks for cracking into this!

Regarding Timelines

FYI I'm aiming to do a Pagefind 1.0 release within 2-3 weeks, so I'll aim to soft-exclude the Modular UI path from that. (It will still be available, as it currently is, but marked as experimental/fragile until this web component work completes).

So this PR might target something like a 1.1 release 🙂

Regarding the "Default UI"

I'll be adding a few features to the Default UI for the 1.0 release (sub-results, mainly). After that, I'm keen to help/iterate on this PR's approach to the Modular UI, with the aim of making the Modular UI & web components the primary recommendation when using Pagefind.

Regarding this PR so far

I'll need to upskill myself on web components a little! But skimming through it's looking pretty good. Some general questions and ponderings:

• How do you propose we handle an option for whether the component is styled?
  • Currently a workflow is to omit the /_pagefind/*.css script and run your own styles.
  • Is there a nice way to use/inherit the site's styles, if a user wants the input style to match their existing theme?
• One useful aspect of the existing Modular UI approach is the ability to target/hydrate an existing input element.
  • Do you think this is something we could work into the web component approach? or
  • Is this something best served with a separate piece of functionality altogether
• How does register(instance) get called to connect this component to a Pagefind state (I assume this is just a TODO for now)

Let me know your thoughts! I'm keen to jump in and have a play with it, but I'll prioritize my 1.0 release tasks first 😅 Happy to keep ideating/reviewing in the meantime 🙂

[bennypowers]

will have to let this pr rest until Hamas is utterly destroyed

[bglw]

Picking this up internally — will close out this draft PR for the time being