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List: use nested blocks #42711

Merged
merged 17 commits into from Aug 24, 2022
Merged

List: use nested blocks #42711

merged 17 commits into from Aug 24, 2022

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ellatrix
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@ellatrix ellatrix commented Jul 26, 2022

What?

Enables List v2.

Fixes #6394.
Fixes #21406.
Fixes #32169.
Fixes #40348.
Fixes #17052.

We need to wait with this PR until v2 is released for mobile, so do not merge yet.

Remaining important things to fix

Why?

Each list item will be a block, and each nested list will also be a separate block with separate settings.
Among other things, it allows list items to be easily ordered.

How?

With InnerBlocks!

Testing Instructions

Test the list block generally. The e2e tests should cover us.

Screenshots or screencast

@ellatrix ellatrix added the [Block] List Affects the List Block label Jul 26, 2022
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github-actions bot commented Jul 26, 2022

Size Change: -880 B (0%)

Total Size: 1.24 MB

Filename Size Change
build/block-editor/index.min.js 159 kB -20 B (0%)
build/block-library/index.min.js 185 kB -867 B (0%)
build/blocks/index.min.js 49.5 kB +7 B (0%)
ℹ️ View Unchanged
Filename Size
build/a11y/index.min.js 982 B
build/annotations/index.min.js 2.76 kB
build/api-fetch/index.min.js 2.26 kB
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@oandregal oandregal added the Needs Dev Note Requires a developer note for a major WordPress release cycle label Aug 4, 2022
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Similarly to quote #25892 (comment) I'm adding a "needs dev note" to document this. While there're no markup changes the fact that list items have now a "data-block" attribute may cause issues in the editor due to theme authors using that to detect blocks. See #42526 (comment)

@ellatrix ellatrix added the Mobile App - i.e. Android or iOS Native mobile impl of the block editor. (Note: used in scripts, ping mobile folks to change) label Aug 12, 2022
@ellatrix ellatrix requested a review from geriux August 12, 2022 10:35
@ellatrix ellatrix force-pushed the enable/list-v2 branch 2 times, most recently from 4b7b56f to 5a1a7cb Compare August 22, 2022 05:49
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I've tested a bit the interactions and this is what I've found not working. None of them seems blockers for landing this, follow-ups would work. I still need to do the code review.

See full list of tests
  • insertion
    • can use - or numbers
    • can write right after insertion
    • only allow list items as inner blocks
  • removal
    • can remove item by item (couldn't before)
    • can remove whole block
  • navigation:
    • in/out the block via keyboard
    • can break the list into two
  • selection
  • copy/paste: text (selected) vs item (nothing selected)
  • cut/paste
    • from list to other list
    • from list to new block
  • indent/outdent shortcuts
    • outdent shortcut: ctrl+shift+m
    • indent shortcut: ctrl+m
  • merge internal
    • item into previous
    • following into item
      • nested levels
        • outdent with backspace
        • merge item into previous
        • merge following into item
  • merge into previous:
    - paragraph
    - heading (it's transformed into a p, not a heading)
    - list
  • merge following into list
    • paragraph, heading
    • list

Things that I ran into:

  • Indent/Outdent shortcuts (ctrl+m) not working.
  • Cut item and paste it into new block (it's not pasted):
220822-list-v2-cut-paste-into-new-block.webm
  • Merge into previous block: heading. The list items are converted into a paragraph, not a heading.
220822-merge-into-heading.webm
  • Merge into previous block: list. The items are converted to paragraphs, not merged into the previous list.
220822-merge-into-list.webm
  • Merge following block (list) into list. The list is unwrapped and converted to paragraphs.
220822-merge-two-lists.webm

@ellatrix
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Thanks for testing! Let's follow up with any non blocker fixes and also add e2e tests for all of these. :)

shiftKey ||
altKey ||
metaKey ||
ctrlKey
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Oh, I just saw this. So this is how indent/outdent now currently works:

  • indent: hit space at the beggining of the list item (either empty list item or item with text)
  • outdent: hit backspace at the beginning of the list item

I remember that there were conversations about certain shortcuts conflicting with browser's shortcuts but don't remember the details. Perhaps that's why the CTRL+M one was removed?

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Yes, ctrl+m conflicts with minimise on mac.

@@ -1,177 +1,188 @@
/**
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The whole edit function is simplified a great deal with these changes! 👏

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I've finalized the code review: there's a couple of tweaks we can do and I think I've noticed a couple of other gotchas (transform to TOC block, etc). They are small enough for me to approve and either address here or in follow-ups.

I've also tested the paste transformation and that blocks created with the old version were properly transformed into the new one.

Let's merge this and polish

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All working great on mobile 🚀 thank you for removing the feature flag code 🙇 ❤️

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Rebased to get #43571 in and avoid unrelated e2e test failures.

@oandregal oandregal merged commit 17223f5 into trunk Aug 24, 2022
@oandregal oandregal deleted the enable/list-v2 branch August 24, 2022 18:15
@github-actions github-actions bot added this to the Gutenberg 14.1 milestone Aug 24, 2022
MaggieCabrera pushed a commit that referenced this pull request Aug 25, 2022
Co-authored-by: André <583546+oandregal@users.noreply.github.com>
@ellatrix
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Merge into previous block: heading. The list items are converted into a paragraph, not a heading.

@oandregal Not sure I understand why it should be converted into a heading. Backspace should just unwrap the text, not convert it to anything.

Merge into previous block: list. The items are converted to paragraphs, not merged into the previous list.

There's already a PR for this: #43181

Cut item and paste it into new block (it's not pasted)

Created an issue: #43607

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oandregal commented Aug 26, 2022

Not sure I understand why it should be converted into a heading. Backspace should just unwrap the text, not convert it to anything.

Makes sense. Thought to bring it up because the list v1 did convert the items into heading blocks:

Gravacao.de.ecra.a.partir.de.26-08-2022.12.27.49.webm

@gziolo
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gziolo commented Sep 1, 2022

The test content used with the performance test still uses the old markup for the List block. It could impact the "First block loaded" results because those blocks need to be migrated to the new markup.

Screen Shot 2022-09-01 at 09 50 26

Source: https://codehealth.vercel.app

File to update:
https://github.com/WordPress/gutenberg/blob/trunk/packages/e2e-tests/assets/large-post.html

I applied a similar update after the Quote block with nesting landed #43359 but it didn't have a bigger impact.

There is also a noticeable increase in the "Typing" time result with this PR introduced, which might be simply an effect of using inner blocks:

Screen Shot 2022-09-01 at 09 52 46

Source: https://codehealth.vercel.app

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Created a PR to update the test content at #43770

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oandregal commented Sep 1, 2022

I do see a big increase in the firstBlock test in this PR compared to what it was trunk back then (see):

  • post editor: 18974.7ms in this PR vs 7053.5 ms in trunk
  • site editor: 20476.53ms in this PR vs 8063.53 ms in trunk

Waiting for the results of the performance tests at #43770 to see if that's attributable to the migration hook (transform list v1 to list v2).

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With the test content updated, it looks like the latest speed tests are still about 50% slower than 6.0: https://make.wordpress.org/core/2022/10/13/whats-new-in-gutenberg-14-3-12-october/

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[Block] List Affects the List Block Mobile App - i.e. Android or iOS Native mobile impl of the block editor. (Note: used in scripts, ping mobile folks to change) Needs Dev Note Requires a developer note for a major WordPress release cycle
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