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[Patterns] Separate sync status into a filter control #52303

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merged 19 commits into from
Jul 10, 2023

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@kevin940726 kevin940726 commented Jul 5, 2023

What and Why?

Part of #51948. Revamp the layout of the "My patterns" screen and refactor some code around it to better prepare for pagination in the future.

The goal is to limit the number of patterns rendered on screen so that users with many patterns (>100) won't get frozen or crash. This is a temporary solution until we decide which accessible pagination system to use.

How?

Worth noting that even though we only render at most 100 patterns at a time, we're still fetching all the patterns from the API. It's needed so that we can do client-side filtering and searching. In the future, we might decide to switch to server-side filtering and searching (#52396) once the API supports them.

Testing Instructions

  1. Go to Site Editor -> Patterns
  2. Create a bunch of patterns by running this in the console and reload the page:
Array.from({ length: 500 }, (_, i) => i + 1).forEach((index) => {
  window.wp.apiFetch({ path: '/wp/v2/blocks', method: 'POST', data: {
    title: `Pattern ${index}`,
    content: window.wp.blocks.serialize([
      window.wp.blocks.createBlock('core/heading', { content: `Pattern ${index}` } ),
      window.wp.blocks.createBlock('core/spacer', { height: `${50 + ~~(Math.random() * 300)}px` } ),
    ]),
    status: 'publish',
  } });
});
  1. Visit "My Patterns", scroll down and see that there's an indicator text showing how many patterns are left.
  2. Try switching between different sync status
  3. Try searching in the searchbox
  4. Switch to different categories and try searching

Testing Instructions for Keyboard

Follow the same steps above. The grid list is using <Composite> so that it should be able to navigate through arrow buttons. It's likely not accessible enough though, but that can be tackled in another PR.

Screenshots or screencast

Kapture.2023-07-07.at.15.46.28.mp4

@kevin940726 kevin940726 added the [Feature] Patterns A collection of blocks that can be synced (previously reusable blocks) or unsynced label Jul 5, 2023
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Size Change: +1.22 kB (0%)

Total Size: 1.42 MB

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github-actions bot commented Jul 5, 2023

Flaky tests detected in 2ec62ae.
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/5502420340
📝 Reported issues:

@kevin940726 kevin940726 self-assigned this Jul 5, 2023
Comment on lines 34 to 37
description = __( 'Patterns that are kept in sync across your site.' ); // TODO
} else if ( type === TEMPLATE_PARTS ) {
title = TEMPLATE_PART_AREA_LABELS[ categoryId ];
description = __( 'Patterns that are kept in sync across your site.' ); // TODO
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We should update these descriptions 😅 . @SaxonF Any idea? 😆

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The pagination is currently done client side as mentioned in the PR description above. @youknowriad Do you have any concerns about this approach? I can try to put up another draft PR implementing the server side solution if needed.

@kevin940726 kevin940726 added the Needs Design Feedback Needs general design feedback. label Jul 5, 2023
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glendaviesnz commented Jul 5, 2023

Seems to work well - nice work! A couple of things with initial testing:

Do we want the load more button to be full width?

Screenshot 2023-07-06 at 9 38 50 AM

With a couple of hundred patterns loaded the Delete pattern flow is pretty slow and janky - not sure how we get around this as pulling one item out causes a full list rerender 🤔

@glendaviesnz
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glendaviesnz commented Jul 5, 2023

@SaxonF I know this isn't properly designed yet, but just wondering if we need more distinction between left nav and the pattern list, it looks like an indistinct sea of black at the moment:
Screenshot 2023-07-06 at 9 59 48 AM

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This worked well for me. I am noticing some sluggishness, especially when the previews of the patterns are loading. When I try to do something else when this is happens it seems as though all interactions are blocked.

For example, search for a pattern and let that load. Then clear the search and try immediately clicking on one of the "All/Synced/Standard" filters. You'll notice interaction is blocked until the previews of all the patterns are loaded.

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youknowriad commented Jul 6, 2023

I think it's fine to start with client side pagination but I do remember some very old feedback that some folks had a very high number of reusable blocks (synced patterns). So I think ultimately, it's better to do server side pagination.

There's also the question of the design, I know there are some concerns about the infinite scrolling but "load more" button is really not a great UX experience for most users. cc @jasmussen @mtias @SaxonF I think it's probably an opportunity to find a solution that works great in terms of UX once and for all, but I do expect the behavior to find its place in other pages... but also addresses the a11y concerns. One option could be to make this an a11y preference.

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SaxonF commented Jul 7, 2023

I think it's probably an opportunity to find a solution that works great in terms of UX once and for all, but I do expect the behavior to find its place in other pages... but also addresses the a11y concerns. One option could be to make this an a11y preference.

If we can work out an elegant a11y solution my preference mid term would be infinite scroll + search + filters (e.g.by sync status, author, date etc) + sorting (name, modified date, created date etc). That combination would offer a nice mix to cover both browse and search tasks. This should be done on the server.

In the short term though, we need something for 6.3 to minimise client-side performance issues. I doubt we'll get infinite scroll in a nice place before then, so we either enforce a limit of ~100 patterns on a page and rely on search to find older patterns, or we include a load more button.

@kevin940726 kevin940726 marked this pull request as ready for review July 7, 2023 07:48
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Is the main purpose of the PR the client side performance? Did we try / are we using useAsyncList here? Like in the inserter...

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kevin940726 commented Jul 7, 2023

Is the main purpose of the PR the client side performance? Did we try / are we using useAsyncList here? Like in the inserter...

The main bottleneck is rendering all the <BlockPreview>s on the same page. I'm not sure how useAsyncList will help with that? It could be a potential optimization for initial rendering though.

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The main bottleneck is rendering all the s on the same page. I'm not sure how useAsyncList will help with that? It could be a potential optimization for initial rendering though.

We've found that the initial rendering is the problem that causes freezing. After initial rendering there's not much "re-rendering" happening (there's some but not impactful), so we've built useAsyncList to be able to lazily render the patterns as the browser allows (requestIdleCallback). I think it would be good to use the same solution used before for the exact same problem.

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We've found that the initial rendering is the problem that causes freezing. After initial rendering there's not much "re-rendering" happening (there's some but not impactful), so we've built useAsyncList to be able to lazily render the patterns as the browser allows (requestIdleCallback).

Thanks for the additional info! I was not aware of this finding. However, isn't this solution basically the same as infinite loading? Only that it automatically loads the next items without user interactions. I'm not familiar with the accessibility concerns of the infinite loading approach, but if it's not relevant here we can definitely give it a try!


Another gotcha I failed to mention is that this screen allows editing and deleting items on the same page. If we pass in per_page: -1 to fetch all the patterns in one go and do client-side filtering, regardless we use the infinite loading approach, we'll run into the following problem:

  1. User deletes (updates) an item.
  2. Cache invalidates, refetch the list with the same query (per_page: 1).
  3. It takes a long time to fetch the whole list because the REST API can only handle 100 items at a time. The middleware sequentially fetches each page and then concatenates them together on the client.
  4. The UI finally updates.

I'm not familiar with the core-data internals to know how to fix this. But a general solution is to leverage optimistic update and do the re-fetching behind the scenes. Another potential solution is to disable invalidating the cache of the whole list since we only allow individual updates at the time. Maybe there's a quick solution already implemented somewhere that I'm not aware of though!

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Thanks @youknowriad, I switched it to use useAsyncList which improves the performance even when displaying the limited list of results. We will merge this in as is and then circle back and sort the pagination.

@glendaviesnz glendaviesnz removed the Needs Design Feedback Needs general design feedback. label Jul 10, 2023
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Tested well for me. Made some minor changes to heading texts and wrapped patterns array in useAsyncList

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Lots of improvements to follow up with (e.g. server side pagination and performance improvements) but this is better than what's on trunk and allows older patterns to be discovered so I think we merge and keep iterating.

@glendaviesnz glendaviesnz added the Backport to WP 6.7 Beta/RC Pull request that needs to be backported to the WordPress major release that's currently in beta label Jul 10, 2023
@glendaviesnz glendaviesnz merged commit 0daf67e into trunk Jul 10, 2023
@glendaviesnz glendaviesnz deleted the try/patterns-pagination branch July 10, 2023 00:59
@github-actions github-actions bot added this to the Gutenberg 16.3 milestone Jul 10, 2023
tellthemachines pushed a commit that referenced this pull request Jul 10, 2023
@tellthemachines tellthemachines removed the Backport to WP 6.7 Beta/RC Pull request that needs to be backported to the WordPress major release that's currently in beta label Jul 10, 2023
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tellthemachines added a commit that referenced this pull request Jul 11, 2023
* Post and Comment Template blocks: Change render_block_context priority to 1 (#52364)

* Footnotes: fix lingering format boundary attr (#52439)

* Footnotes: Fix incorrect anchor position in Firefox (#52425)

* Scope CSS rules for the wp admin reset to js support only. (#52376)

* Fix: Patterns & template parts: remove "apply globally" option from block settings (#52160)

* Advanced styles panel: add an early return

* Update index.js

* Minor styling changes

* Use array of features

---------

Co-authored-by: George Mamadashvili <[email protected]>

* make the body of the editor minimmum viewport height so that smaller contents maintain clickability (#52406)

* Patterns: Add renaming, duplication, and deletion options (#52270)

* Patterns: Update manage pattern links to go to site editor if available (#52403)

* [Patterns] Separate sync status into a filter control (#52303)

Co-authored-by: Saxon Fletcher <[email protected]>
Co-authored-by: Glen Davies <[email protected]>

* Patterns: Add missing decoding entities processing in Patterns and Template/Parts pages (#52449)

* Fix document title icon appearance (#52424)

* Quote block: Add transform to paragraph (#51809)

* Add ungroup transform as transform to p

* Lint

* Update test and snapshot.

---------

Co-authored-by: Juan Aldasoro <[email protected]>

* remove sidebar group descriptions (#52453)

* Patterns:  alternative grid layout to improve keyboard accessibility (#52357)

* add sync tooltip (#52458)

* Patterns: Update section heading levels (#52273)

* Ensure that the unsaved title is not persisted when reopening the modal (#52473)

* Iframe: avoid asset parsing & fix script localisation (#52405)

* Iframe: avoid asset parsing & fix script localisation

* Add e2e test for script localisation

* Update descriptions (#52468)

* Footnotes: show in inserter and placehold (#52445)

* Footnotes: show in inserter and placehold

* Fix placeholder block membrane; fix copy; add icon, label

---------

Co-authored-by: Miguel Fonseca <[email protected]>

* Fix: Focus loss on navigation link label editing on Firefox. (#52428)

* Update tooltip (#52465)

* Refactor, document, and fix image block deprecations (#52081)

* Refactor, document, and fix image block deprecations

* Fix v5 attributes & supports

* Fix v1 & v2 deprecation tests

* Rename deprecated test descriptions

* Respect custom aspect ratio (#52286)

* add image width and height via css inline style, update width and height attrs to be string

* keep width and height as attributes too, keep the attributes as numbers

* updates image fixtures

* RichText/Footnotes: make getRichTextValues work with InnerBlocks.Content (#52241)

* RichText/Footnotes: make getRichTextValues work with InnerBlocks.Content

---------

Co-authored-by: Miguel Fonseca <[email protected]>

* Footnotes: save numbering through the entity provider (#52423)

* Footnotes: save numbering through the entity provider

* Add sup so no styling is needed at all

* Migrate old format

* Restore old styles, fix nested attribute queries

* Fix anchor selection

* Migrate markup in entity provider instead

* Fix tests

* Fix typo

* Fix comment

---------

Co-authored-by: Miguel Fonseca <[email protected]>

* Revert "Post editor: Require confirmation before removing Footnotes (#52277)" (#52486)

This reverts commit e6426ea.

* List block: Fix selected type option (#52472)

* Library - make pattern title clickable (#51898)

* Use button inside title

* Remove href

* Preserve roving tab index

* Fix link colors to match trunk $gray-600

* Remove redundant var

* Amend colors as per review

* remove old files again

---------

Co-authored-by: scruffian <[email protected]>

* remove status icon (#52457)

* Rename block theme activation nonce variable. (#52398)

---------

Co-authored-by: Bernie Reiter <[email protected]>
Co-authored-by: Ella <[email protected]>
Co-authored-by: Aki Hamano <[email protected]>
Co-authored-by: Andrea Fercia <[email protected]>
Co-authored-by: Carolina Nymark <[email protected]>
Co-authored-by: George Mamadashvili <[email protected]>
Co-authored-by: Andrei Draganescu <[email protected]>
Co-authored-by: Aaron Robertshaw <[email protected]>
Co-authored-by: Kai Hao <[email protected]>
Co-authored-by: Saxon Fletcher <[email protected]>
Co-authored-by: Glen Davies <[email protected]>
Co-authored-by: James Koster <[email protected]>
Co-authored-by: Rich Tabor <[email protected]>
Co-authored-by: Juan Aldasoro <[email protected]>
Co-authored-by: Miguel Fonseca <[email protected]>
Co-authored-by: Jorge Costa <[email protected]>
Co-authored-by: Alex Lende <[email protected]>
Co-authored-by: Héctor <[email protected]>
Co-authored-by: Petter Walbø Johnsgård <[email protected]>
Co-authored-by: Dave Smith <[email protected]>
Co-authored-by: scruffian <[email protected]>
Co-authored-by: Peter Wilson <[email protected]>
@mburridge mburridge added the [Type] Enhancement A suggestion for improvement. label Jul 18, 2023
@Mamaduka
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@kevin940726, I noticed (while testing #53666) that the usePatterns hook returns a new patterns reference on each mapSelect call.

If the Patterns API doesn't support filtering, we should perform it outside the useSelect hook.

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[Feature] Patterns A collection of blocks that can be synced (previously reusable blocks) or unsynced [Type] Enhancement A suggestion for improvement.
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