Full Site Editing: Add Support for Templates Default and Custom Titles and Descriptions (PHP Side)

[Copons]

Description

This PR was originally part of #26636.

• Added support for excerpts to the wp_template CPT, used to store the template description.
• Created a list of default template types definitions in PHP containing titles and descriptions for all the "generic" templates.
• The list is filterable with the new default_template_types filter, already used to temporarily remove the embed definition which it's currently not supported.
• The list is available in JS via Redux through the new getDefaultTemplateTypes(), getDefaultTemplateType(), and getTemplateInfo() selectors of core/edit-site.
• Templates imported from files will automatically obtain the title and excerpt from the default definitions, if possible.

How has this been tested?

See #27038

Types of changes

New feature (non-breaking change which adds functionality)

Checklist:

• My code is tested.
• My code follows the WordPress code style.
• My code follows the accessibility standards.
• My code has proper inline documentation.
• I've included developer documentation if appropriate.
• I've updated all React Native files affected by any refactorings/renamings in this PR.

[github-actions]

Size Change: 0 B

Total Size: 1.19 MB

ℹ️ View Unchanged

Filename	Size	Change
build/a11y/index.js	1.14 kB	0 B
build/annotations/index.js	3.8 kB	0 B
build/api-fetch/index.js	3.42 kB	0 B
build/autop/index.js	2.84 kB	0 B
build/blob/index.js	664 B	0 B
build/block-directory/index.js	8.72 kB	0 B
build/block-directory/style-rtl.css	943 B	0 B
build/block-directory/style.css	942 B	0 B
build/block-editor/index.js	133 kB	0 B
build/block-editor/style-rtl.css	11.3 kB	0 B
build/block-editor/style.css	11.3 kB	0 B
build/block-library/editor-rtl.css	9.03 kB	0 B
build/block-library/editor.css	9.03 kB	0 B
build/block-library/index.js	147 kB	0 B
build/block-library/style-rtl.css	8.1 kB	0 B
build/block-library/style.css	8.1 kB	0 B
build/block-library/theme-rtl.css	792 B	0 B
build/block-library/theme.css	793 B	0 B
build/block-serialization-default-parser/index.js	1.87 kB	0 B
build/block-serialization-spec-parser/index.js	3.06 kB	0 B
build/blocks/index.js	48 kB	0 B
build/components/index.js	171 kB	0 B
build/components/style-rtl.css	15.3 kB	0 B
build/components/style.css	15.3 kB	0 B
build/compose/index.js	9.95 kB	0 B
build/core-data/index.js	14.8 kB	0 B
build/data-controls/index.js	827 B	0 B
build/data/index.js	8.8 kB	0 B
build/date/index.js	11.2 kB	0 B
build/deprecated/index.js	768 B	0 B
build/dom-ready/index.js	571 B	0 B
build/dom/index.js	4.92 kB	0 B
build/edit-navigation/index.js	11.2 kB	0 B
build/edit-navigation/style-rtl.css	881 B	0 B
build/edit-navigation/style.css	885 B	0 B
build/edit-post/index.js	306 kB	0 B
build/edit-post/style-rtl.css	6.45 kB	0 B
build/edit-post/style.css	6.44 kB	0 B
build/edit-site/index.js	23.3 kB	0 B
build/edit-site/style-rtl.css	3.85 kB	0 B
build/edit-site/style.css	3.85 kB	0 B
build/edit-widgets/index.js	26.4 kB	0 B
build/edit-widgets/style-rtl.css	3.13 kB	0 B
build/edit-widgets/style.css	3.13 kB	0 B
build/editor/editor-styles-rtl.css	476 B	0 B
build/editor/editor-styles.css	478 B	0 B
build/editor/index.js	42.7 kB	0 B
build/editor/style-rtl.css	3.85 kB	0 B
build/editor/style.css	3.85 kB	0 B
build/element/index.js	4.62 kB	0 B
build/escape-html/index.js	735 B	0 B
build/format-library/index.js	6.86 kB	0 B
build/format-library/style-rtl.css	547 B	0 B
build/format-library/style.css	548 B	0 B
build/hooks/index.js	2.16 kB	0 B
build/html-entities/index.js	623 B	0 B
build/i18n/index.js	3.57 kB	0 B
build/is-shallow-equal/index.js	698 B	0 B
build/keyboard-shortcuts/index.js	2.54 kB	0 B
build/keycodes/index.js	1.94 kB	0 B
build/list-reusable-blocks/index.js	3.1 kB	0 B
build/list-reusable-blocks/style-rtl.css	476 B	0 B
build/list-reusable-blocks/style.css	476 B	0 B
build/media-utils/index.js	5.32 kB	0 B
build/notices/index.js	1.81 kB	0 B
build/nux/index.js	3.42 kB	0 B
build/nux/style-rtl.css	671 B	0 B
build/nux/style.css	668 B	0 B
build/plugins/index.js	2.56 kB	0 B
build/primitives/index.js	1.43 kB	0 B
build/priority-queue/index.js	790 B	0 B
build/redux-routine/index.js	2.84 kB	0 B
build/reusable-blocks/index.js	3.06 kB	0 B
build/rich-text/index.js	13.3 kB	0 B
build/server-side-render/index.js	2.77 kB	0 B
build/shortcode/index.js	1.69 kB	0 B
build/token-list/index.js	1.27 kB	0 B
build/url/index.js	4.05 kB	0 B
build/viewport/index.js	1.86 kB	0 B
build/warning/index.js	1.14 kB	0 B
build/wordcount/index.js	1.22 kB	0 B

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[gziolo]

It looks like there is one merge issue to resolve now, but overall it all looks good. Thank you for breaking up #26636 into smaller PRs 😍, I didn't feel confident to accept the previous PR but those changes seem to be a nice improvement. You might still want to validate with someone more familiar with FSE 😅

[noahtallen]

Not quite sure what's happening, but the descriptions aren't rendering correctly:

[Copons]

Not quite sure what's happening, but the descriptions aren't rendering correctly:

@noahtallen in the JS counterpart to this PR (#27038) I've updated the description selector from: excerpt.rendered to excerpt.raw.
I think generally excerpts don't accept HTML (and more so in this case where their usage is "internal", not exposed to the site users), so there should be no need to grab the rendered version and dangerously use it.

[gziolo]

There are some e2e test failures in specs covering reusable blocks. Is there any chance it's related to this PR?

[Copons]

There are some e2e test failures in specs covering reusable blocks. Is there any chance it's related to this PR?

@gziolo I've tried running them a few times, always receiving different fails.

First time there was something going on with the Embed block. This PR shouldn't affect any blocks, but it does remove the embed template type from the default types (it's not used, and even manually removed at some point — removal that I've left in the code, in the off chance a third party adds it by filtering the list).
Regardless, a second run cleared those fails, and replaced them with others related to the Inserter, which I'm pretty confident cannot be caused by this PR, as it's PHP-only.

[gziolo]

Regardless, a second run cleared those fails, and replaced them with others related to the Inserter, which I'm pretty confident cannot be caused by this PR, as it's PHP-only.

Yes, no idea where it's coming from 🙁

[david-szabo97]

• Cleaned auto-drafts
• New auto-drafts are created with the correct title and description
• Opened site editor
• Correct template loaded
• Templates title and description match

👍 ✅

should be ok