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Query: Try adding infinite scroll loading #56987

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@gziolo gziolo commented Dec 12, 2023

What?

See #59943.

Many classic themes use the infinite scroll feature, so it would be great to add it for feature parity to core blocks. We have this unique opportunity to make it accessible for everyone by leveraging the Interactivity API. This PR explores what is necessary to add the feature to the Query Loop block.

This is an early prototype. There is no immediate plan to land it in the Gutenberg plugin. However, it would be great to gather some initial feedback about the requirements for making it accessible.

Why?

How?

Testing Instructions

Testing Instructions for Keyboard

Screenshots or screencast

Infinite.scroll.mp4

@gziolo gziolo added [Type] Technical Prototype Offers a technical exploration into an idea as an example of what's possible [Block] Query Loop Affects the Query Loop Block labels Dec 12, 2023
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  • Type-related labels to choose from: [Type] Automated Testing, [Type] Breaking Change, [Type] Bug, [Type] Build Tooling, [Type] Code Quality, [Type] Copy, [Type] Developer Documentation, [Type] Enhancement, [Type] Experimental, [Type] Feature, [Type] New API, [Type] Task, [Type] Performance, [Type] Project Management, [Type] Regression, [Type] Security, [Type] WP Core Ticket, Backport from WordPress Core.
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github-actions bot commented Dec 12, 2023

Size Change: +610 B (0%)

Total Size: 1.71 MB

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github-actions bot commented Dec 12, 2023

Flaky tests detected in 2a39741.
Some tests passed with failed attempts. The failures may not be related to this commit but are still reported for visibility. See the documentation for more information.

🔍 Workflow run URL: https://github.com/WordPress/gutenberg/actions/runs/7195816355
📝 Reported issues:

@alexstine
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Hey @gziolo,

Really need to watch accessibility with an approach like this. Any type of load more action needs to very carefully manage focus and communicate clearly to assistive technology. I would much prefer we keep the pagination approach. Please get reviews from the Accessibility Team if you get this in a place ready for reviews.

Thanks.

@luisherranz
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Hey @alexstine, absolutely 🙂

This was just a quick proof of concept to test how the navigate API would handle this complex use case, but we don't have plans to implement something like this yet.

@gziolo
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gziolo commented Dec 20, 2023

@alexstine, it feels so great having your comment on the early prototype for one of the potential features we could add to the Query block or Comments block. I wanted to echo what Luis said. There is no immediate plan to continue working on it, but once we get back to it, we definitely will reach out to the Accessibility team for support in shaping how it all works. Many classic themes use the infinite scroll feature, so it would be great to add it for feature parity, but we have this unique opportunity to make it accessible for everyone by leveraging the Interactivity API.

Any type of load more action needs to very carefully manage focus and communicate clearly to assistive technology. I would much prefer we keep the pagination approach.

The way the Query block works without the page reload covers the communication part when using assistive technology. It announces that the page has changed using the same mechanism as in the block editor. We definitely could reuse that for infinite scroll.

Do you have some initial thoughts on how we could go about the focus management? This is what I was thinking so far. If we put the Load more button under the list of posts, then we would have to append a post from the next page after the button and announce that there are more posts loaded. This way when you tab, the focus would go the the first post from the newly loaded page. Once the focus gets moved out of the "load more" button, we could remove it from the view. Would it make sense to move the focus automatically to the wrapping element of the newly loaded page instead?

@gziolo gziolo added [Feature] Interactivity API API to add frontend interactivity to blocks. [Type] Feature New feature to highlight in changelogs. labels Dec 20, 2023
@alexstine
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@gziolo I think placing focus on the newly loaded post is okay.

@gziolo
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gziolo commented Mar 18, 2024

I opened #59943 to track it. I'm closing the prototype for now as I don't plan to work on it in the upcoming weeks.

@gziolo gziolo closed this Mar 18, 2024
@gziolo gziolo deleted the update/query-infinite-scroll branch March 18, 2024 06:44
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[Block] Query Loop Affects the Query Loop Block [Feature] Interactivity API API to add frontend interactivity to blocks. [Type] Feature New feature to highlight in changelogs. [Type] Technical Prototype Offers a technical exploration into an idea as an example of what's possible
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4 participants