Templates: allow templates to be activated and deactivated

Creating a new PR to squash all commits and preserve the history of #66951.

What?

Allow multiple templates with the same target slug.
Allow switching between templates by setting templates active. The theme's templates are active by default. This is currently not possible in trunk. Previously I could not disable an edit I make to a theme template. I could not have multiple templates and switch between them. Now it is! Also opens the door to template scheduling. Fixes #61256.
Theme templates can be disabled so that the fallback is used (except for the essential index template). Fixes #45711, fixes #37756.
An "Active templates" view where you can see all templates that are currently active.
User templates are simplified to use the normal Post Type REST API endpoints.
Revisions, duplicating, and trashing now works for free through the normal Post actions. Fixes #49164, fixes #52221
The custom and complex reset and edit overrides are removed (still kept around for template parts for now).
User templates and static templates are kept in separate buckets. It's strange in trunk how some actions are available to some templates but not others. Fixes #66646.
Since they are in separate buckets, we can now much more easily add server side pagination.
It's now possible to make new templates and not have them immediately be published. Notice how previously, if you add a new missing template, the blank template is immediately live! This is no longer the case. You can work on it in peace.
You can now add new templates for all template slugs, not just the missing ones!
Template customisations will not disappear if you switch themes. Fixes #25071, fixes #31954.

Fixes #66950.

Why?

See above.

How?

Separate the endpoints for user and static templates.
A site setting active_templates that contains a maps of slugs to active template IDs. To disable default templates, it can be set to false.
To retain existing behaviour of opening and editing theme templates, an auto-draft user template is created behind the scenes in case edits are made. If no edits are made this disappears. The active template is also set to the draft. If the user makes edits and wants to save it, changing active templates can be unticked in the multi-entity saving panel. There's potential to improve the UX here with this new paradigm.

Testing Instructions

Site Editor => Templates. Everything there. Check the front-end when switching active templates.
Editing the theme templates, e.g. at the root of the site editor.

Testing Instructions for Keyboard

Screenshots or screencast

⚠️ An additional "Active templates" view has been added since this video was recorded.

https://github.com/user-attachments/assets/d1afbe79-2455-4fc8-bdce-4806bbab9e26

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Size Change: +1.24 kB (+0.07%)

Total Size: 1.82 MB

Filename	Size	Change
`build/core-commands/index.min.js`	3.1 kB	+20 B (+0.65%)
`build/core-data/index.min.js`	74.6 kB	+363 B (+0.49%)
`build/edit-post/index.min.js`	13.5 kB	+47 B (+0.35%)
`build/edit-site/index.min.js`	220 kB	+620 B (+0.28%)
`build/edit-site/style-rtl.css`	13.4 kB	+14 B (+0.1%)
`build/edit-site/style.css`	13.4 kB	+12 B (+0.09%)
`build/editor/index.min.js`	112 kB	+161 B (+0.14%)

ℹ️ View Unchanged

| Filename | Size | | :--- | :---: | | `build-module/a11y/index.min.js` | 482 B | | `build-module/block-library/file/view.min.js` | 447 B | | `build-module/block-library/image/view.min.js` | 1.78 kB | | `build-module/block-library/navigation/view.min.js` | 1.16 kB | | `build-module/block-library/query/view.min.js` | 742 B | | `build-module/block-library/search/view.min.js` | 616 B | | `build-module/interactivity-router/index.min.js` | 3.03 kB | | `build-module/interactivity/debug.min.js` | 17.2 kB | | `build-module/interactivity/index.min.js` | 13.6 kB | | `build/a11y/index.min.js` | 952 B | | `build/annotations/index.min.js` | 2.26 kB | | `build/api-fetch/index.min.js` | 2.32 kB | | `build/autop/index.min.js` | 2.12 kB | | `build/blob/index.min.js` | 579 B | | `build/block-directory/index.min.js` | 7.26 kB | | `build/block-directory/style-rtl.css` | 1 kB | | `build/block-directory/style.css` | 1 kB | | `build/block-editor/content-rtl.css` | 4.42 kB | | `build/block-editor/content.css` | 4.41 kB | | `build/block-editor/default-editor-styles-rtl.css` | 394 B | | `build/block-editor/default-editor-styles.css` | 394 B | | `build/block-editor/index.min.js` | 255 kB | | `build/block-editor/style-rtl.css` | 15.4 kB | | `build/block-editor/style.css` | 15.4 kB | | `build/block-library/blocks/archives/editor-rtl.css` | 84 B | | `build/block-library/blocks/archives/editor.css` | 83 B | | `build/block-library/blocks/archives/style-rtl.css` | 90 B | | `build/block-library/blocks/archives/style.css` | 90 B | | `build/block-library/blocks/audio/editor-rtl.css` | 149 B | | `build/block-library/blocks/audio/editor.css` | 151 B | | `build/block-library/blocks/audio/style-rtl.css` | 132 B | | `build/block-library/blocks/audio/style.css` | 132 B | | `build/block-library/blocks/audio/theme-rtl.css` | 134 B | | `build/block-library/blocks/audio/theme.css` | 134 B | | `build/block-library/blocks/avatar/editor-rtl.css` | 115 B | | `build/block-library/blocks/avatar/editor.css` | 115 B | | 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B | | `build/block-library/blocks/comments-pagination/style.css` | 231 B | | `build/block-library/blocks/comments-title/editor-rtl.css` | 75 B | | `build/block-library/blocks/comments-title/editor.css` | 75 B | | `build/block-library/blocks/comments/editor-rtl.css` | 837 B | | `build/block-library/blocks/comments/editor.css` | 836 B | | `build/block-library/blocks/comments/style-rtl.css` | 637 B | | `build/block-library/blocks/comments/style.css` | 637 B | | `build/block-library/blocks/cover/editor-rtl.css` | 631 B | | `build/block-library/blocks/cover/editor.css` | 631 B | | `build/block-library/blocks/cover/style-rtl.css` | 1.7 kB | | `build/block-library/blocks/cover/style.css` | 1.69 kB | | `build/block-library/blocks/details/editor-rtl.css` | 65 B | | `build/block-library/blocks/details/editor.css` | 65 B | | `build/block-library/blocks/details/style-rtl.css` | 86 B | | `build/block-library/blocks/details/style.css` | 86 B | | `build/block-library/blocks/embed/editor-rtl.css` | 331 B | | `build/block-library/blocks/embed/editor.css` | 331 B | | `build/block-library/blocks/embed/style-rtl.css` | 419 B | | `build/block-library/blocks/embed/style.css` | 419 B | | `build/block-library/blocks/embed/theme-rtl.css` | 133 B | | `build/block-library/blocks/embed/theme.css` | 133 B | | `build/block-library/blocks/file/editor-rtl.css` | 326 B | | `build/block-library/blocks/file/editor.css` | 326 B | | `build/block-library/blocks/file/style-rtl.css` | 278 B | | `build/block-library/blocks/file/style.css` | 279 B | | `build/block-library/blocks/footnotes/style-rtl.css` | 198 B | | `build/block-library/blocks/footnotes/style.css` | 197 B | | `build/block-library/blocks/form-input/editor-rtl.css` | 229 B | | `build/block-library/blocks/form-input/editor.css` | 229 B | | `build/block-library/blocks/form-input/style-rtl.css` | 357 B | | `build/block-library/blocks/form-input/style.css` | 357 B | | `build/block-library/blocks/form-submission-notification/editor-rtl.css` | 344 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`build/block-library/blocks/group/style.css` | 103 B | | `build/block-library/blocks/group/theme-rtl.css` | 79 B | | `build/block-library/blocks/group/theme.css` | 79 B | | `build/block-library/blocks/heading/style-rtl.css` | 188 B | | `build/block-library/blocks/heading/style.css` | 188 B | | `build/block-library/blocks/html/editor-rtl.css` | 346 B | | `build/block-library/blocks/html/editor.css` | 347 B | | `build/block-library/blocks/image/editor-rtl.css` | 799 B | | `build/block-library/blocks/image/editor.css` | 799 B | | `build/block-library/blocks/image/style-rtl.css` | 1.59 kB | | `build/block-library/blocks/image/style.css` | 1.59 kB | | `build/block-library/blocks/image/theme-rtl.css` | 137 B | | `build/block-library/blocks/image/theme.css` | 137 B | | `build/block-library/blocks/latest-comments/style-rtl.css` | 355 B | | `build/block-library/blocks/latest-comments/style.css` | 354 B | | `build/block-library/blocks/latest-posts/editor-rtl.css` | 139 B | | `build/block-library/blocks/latest-posts/editor.css` | 138 B | | `build/block-library/blocks/latest-posts/style-rtl.css` | 509 B | | `build/block-library/blocks/latest-posts/style.css` | 510 B | | `build/block-library/blocks/list/style-rtl.css` | 107 B | | `build/block-library/blocks/list/style.css` | 107 B | | `build/block-library/blocks/loginout/style-rtl.css` | 61 B | | `build/block-library/blocks/loginout/style.css` | 61 B | | `build/block-library/blocks/media-text/editor-rtl.css` | 321 B | | `build/block-library/blocks/media-text/editor.css` | 320 B | | `build/block-library/blocks/media-text/style-rtl.css` | 552 B | | `build/block-library/blocks/media-text/style.css` | 550 B | | `build/block-library/blocks/more/editor-rtl.css` | 427 B | | `build/block-library/blocks/more/editor.css` | 427 B | | `build/block-library/blocks/navigation-link/editor-rtl.css` | 644 B | | `build/block-library/blocks/navigation-link/editor.css` | 645 B | | `build/block-library/blocks/navigation-link/style-rtl.css` | 192 B | | `build/block-library/blocks/navigation-link/style.css` | 191 B | | `build/block-library/blocks/navigation-submenu/editor-rtl.css` | 295 B | | `build/block-library/blocks/navigation-submenu/editor.css` | 294 B | | `build/block-library/blocks/navigation/editor-rtl.css` | 2.2 kB | | `build/block-library/blocks/navigation/editor.css` | 2.2 kB | | `build/block-library/blocks/navigation/style-rtl.css` | 2.25 kB | | `build/block-library/blocks/navigation/style.css` | 2.23 kB | | `build/block-library/blocks/nextpage/editor-rtl.css` | 392 B | | `build/block-library/blocks/nextpage/editor.css` | 392 B | | `build/block-library/blocks/page-list/editor-rtl.css` | 378 B | | `build/block-library/blocks/page-list/editor.css` | 378 B | | `build/block-library/blocks/page-list/style-rtl.css` | 192 B | | `build/block-library/blocks/page-list/style.css` | 192 B | | `build/block-library/blocks/paragraph/editor-rtl.css` | 236 B | | `build/block-library/blocks/paragraph/editor.css` | 236 B | | `build/block-library/blocks/paragraph/style-rtl.css` | 341 B | | `build/block-library/blocks/paragraph/style.css` | 340 B | | `build/block-library/blocks/post-author-biography/style-rtl.css` | 74 B | | `build/block-library/blocks/post-author-biography/style.css` | 74 B | | `build/block-library/blocks/post-author-name/style-rtl.css` | 69 B | | `build/block-library/blocks/post-author-name/style.css` | 69 B | | `build/block-library/blocks/post-author/editor-rtl.css` | 107 B | | `build/block-library/blocks/post-author/editor.css` | 107 B | | `build/block-library/blocks/post-author/style-rtl.css` | 188 B | | `build/block-library/blocks/post-author/style.css` | 189 B | | `build/block-library/blocks/post-comments-form/editor-rtl.css` | 96 B | | `build/block-library/blocks/post-comments-form/editor.css` | 96 B | | `build/block-library/blocks/post-comments-form/style-rtl.css` | 527 B | | 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`build/block-library/blocks/post-navigation-link/style.css` | 214 B | | `build/block-library/blocks/post-template/editor-rtl.css` | 99 B | | `build/block-library/blocks/post-template/editor.css` | 98 B | | `build/block-library/blocks/post-template/style-rtl.css` | 399 B | | `build/block-library/blocks/post-template/style.css` | 398 B | | `build/block-library/blocks/post-terms/style-rtl.css` | 96 B | | `build/block-library/blocks/post-terms/style.css` | 96 B | | `build/block-library/blocks/post-time-to-read/style-rtl.css` | 70 B | | `build/block-library/blocks/post-time-to-read/style.css` | 70 B | | `build/block-library/blocks/post-title/style-rtl.css` | 162 B | | `build/block-library/blocks/post-title/style.css` | 162 B | | `build/block-library/blocks/preformatted/style-rtl.css` | 125 B | | `build/block-library/blocks/preformatted/style.css` | 125 B | | `build/block-library/blocks/pullquote/editor-rtl.css` | 134 B | | `build/block-library/blocks/pullquote/editor.css` | 134 B | | `build/block-library/blocks/pullquote/style-rtl.css` | 342 B | | `build/block-library/blocks/pullquote/style.css` | 342 B | | `build/block-library/blocks/pullquote/theme-rtl.css` | 167 B | | `build/block-library/blocks/pullquote/theme.css` | 167 B | | `build/block-library/blocks/query-pagination-numbers/editor-rtl.css` | 121 B | | `build/block-library/blocks/query-pagination-numbers/editor.css` | 118 B | | `build/block-library/blocks/query-pagination/editor-rtl.css` | 154 B | | `build/block-library/blocks/query-pagination/editor.css` | 154 B | | `build/block-library/blocks/query-pagination/style-rtl.css` | 237 B | | `build/block-library/blocks/query-pagination/style.css` | 237 B | | `build/block-library/blocks/query-title/style-rtl.css` | 64 B | | `build/block-library/blocks/query-title/style.css` | 64 B | | `build/block-library/blocks/query/editor-rtl.css` | 452 B | | `build/block-library/blocks/query/editor.css` | 451 B | | `build/block-library/blocks/quote/style-rtl.css` | 238 B | | `build/block-library/blocks/quote/style.css` | 238 B | | `build/block-library/blocks/quote/theme-rtl.css` | 233 B | | `build/block-library/blocks/quote/theme.css` | 236 B | | `build/block-library/blocks/read-more/style-rtl.css` | 138 B | | `build/block-library/blocks/read-more/style.css` | 138 B | | `build/block-library/blocks/rss/editor-rtl.css` | 101 B | | `build/block-library/blocks/rss/editor.css` | 101 B | | `build/block-library/blocks/rss/style-rtl.css` | 288 B | | `build/block-library/blocks/rss/style.css` | 287 B | | `build/block-library/blocks/search/editor-rtl.css` | 199 B | | `build/block-library/blocks/search/editor.css` | 199 B | | `build/block-library/blocks/search/style-rtl.css` | 672 B | | `build/block-library/blocks/search/style.css` | 671 B | | `build/block-library/blocks/search/theme-rtl.css` | 113 B | | `build/block-library/blocks/search/theme.css` | 113 B | | `build/block-library/blocks/separator/editor-rtl.css` | 100 B | | 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_{compressed-size-action}

Flaky tests detected in 42592862a355e19dcb1893cd4de2faf8de0df8b1. 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/11968989225 📝 Reported issues:

57525 in /test/e2e/specs/widgets/editing-widgets.spec.js
35280 in /test/e2e/specs/editor/various/inserting-blocks.spec.js

Pinging @WordPress/block-themers and @WordPress/outreach to get as many eyes on this as possible :) And help testing this would be much appreciated!

Using 2025, I removed all my custom templates and I see this in the theme templates:

My understanding is that this one is marked "inactive" because it's not a "hierarchy" template, My feeling is that it doesn't mean entirely "inactive", it may be already assigned to some pages. So this raises two questions:

Should we show something else for this kind of templates?
This kind of templates don't show up in the "active templates" view. I think that's ok but I wonder if we should add a message there or something to clarify that "active templates" is about the "hierarchy template"

That said, It's not easy because "hierarchy" doesn't really mean anything to most users.

One possible option would be to consider these "custom page templates" as always active (you can't really disable them).

I noticed that right now, you can active/deactive them but it doesn't do anything really and they don't show up in "active templates" either.

@youknowriad Yes, we should think about those.

Should we show something else for this kind of templates?

Maybe some in-between state. "Active on a page" would be a bit long. We're seem to be calling these elsewhere "for a specific item", so maybe a gold badge with "Specific"? Not sure. It would be good if you can hover over the badge and see more info.

This kind of templates don't show up in the "active templates" view. I think that's ok but I wonder if we should add a message there or something to clarify that "active templates" is about the "hierarchy template"

Yes, it's complex, because there's two scenarios: either you assign an existing template to be the page template. In which case the template in not active except for this specific page. Or you create a new specific template that has the slug page-${slug}, in which case the template is completely active since it can't be used for anything other than that page (unless you change the slug).

I think we should do something here in this PR, but there's probably some details left to figure out later.

For example, one option is to deprecate page-${slug} templates and always make them page templates. But we'd need to change the template property of pages to work with IDs instead of slugs (like the active templates site option).

I found myself missing a way to name the templates that I create. I believe we need to:

Ask the user to give a name to a template for the "create template" and "duplicate" actions.
Offer a way to rename in the inspector maybe or somewhere in the editor.

I think this is the kind of details that can be addressed in a follow-up though, once the whole mechanic and UX is agreed upon.

This is very cool. Some initial observations:

After building this branch, a bunch of templates appeared in the 'Custom templates' section, many of which are duplicates of the same template. It's not clear why. Perhaps they're revisions? The point being that we should think about the upgrade process, expected results etc.

Something feels wrong with the logic around the active state of the Front Page template. I have one (several actually, see previous point) in 'Custom templates', but none of them are active. It doesn't appear in 'Active templates' either. It seems to be ignoring the template hierarchy, maybe that's intended? :)

I'm able to click into and 'edit' theme templates. Two issues around this; it's not clear what happens, I assume the template is duplicated, but is it also activated? It's inconsistent with theme patterns, which are entirely uneditable until duplicated. In general I think this part of the UX needs more thought, but for the initial implementation perhaps they should be consistent to help unify the concept?

Potentially a big can of worms, but communicating the template hierarchy in the UI is quite challenging :) As a provocation, and to define the scope of design, do we need to do that with custom templates? Theoretically could any template be assigned to any page? I suppose this relates to the previous point about the 'Front Page' template.

For $custom templates, I agree with @youknowriad that 'active' may not be the correct terminology. It's more like they're in use, or not. Maybe unassigned $custom templates have an 'Unassigned' badge? Though having written that it's not clear to me that users would pick up on the distinction :) Could be a detail to revisit later.

The page-${slug} templates are also tricky. If they can be activated/deactivated then this concept of term specific templates doesn't feel very practical. It might be easier to create a generic template and assign it manually? This probably applies to the Front Page template too... in this case it's basically just the same as any other page template?

A couple of very small points on the design;

The 'Active' badges look like primary buttons. Should we copy the styling from the 'Synced' badges on the Patterns page for now (maybe using the admin theme color rather than purple), then revise later once a Badge component has been implemented (https://github.com/WordPress/gutenberg/issues/61106)?
We have 'My Patterns' and 'Custom Templates' which are essentially the same thing, we should probably align these labels around one or the other; 'Custom' or 'My'. I lean towards the former.

After building this branch, a bunch of templates appeared in the 'Custom templates' section, many of which are duplicates of the same template. It's not clear why. Perhaps they're revisions? The point being that we should think about the upgrade process, expected results etc.

That is weird, it shouldn't be happening since you can only have one custom template per "hierarchy slug" in trunk. I wonder if you had some lingering broken templates (that were hidden in trunk) from very old branches or something.

Something feels wrong with the logic around the active state of the Front Page template. I have one (several actually, see previous point) in 'Custom templates', but none of them are active. It doesn't appear in 'Active templates' either. It seems to be ignoring the template hierarchy, maybe that's intended? :)

I think it probably relates to the previous point. I think upon upgrade, all user templates should be "active" by default.

I'm able to click into and 'edit' theme templates. Two issues around this; it's not clear what happens, I assume the template is duplicated, but is it also activated? It's inconsistent with theme patterns, which are entirely uneditable until duplicated. In general I think this part of the UX needs more thought, but for the initial implementation perhaps they should be consistent to help unify the concept?

I agree, I think for me the ideal is to be explicit about what's happening (no edit) but there are some challenges with that:

We can switch to "template editing" from the "template inspector control" of a post or a page (should it say "duplicate" there when it's a theme template)?
The home page of the site editor allows you to click the preview to "edit" the front page or front page templates, should it trigger a modal or something to ask you to duplicate when it's a "theme template" still?

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but none of them are active

I have not added a migration step yet that makes the existing edits active.

I am testing using this Playground link: https://playground.wordpress.net/?gutenberg-pr=67125#%7B%22landingPage%22:%22/wp-admin/%22,%22features%22:%7B%22networking%22:true%7D,%22steps%22:%5B%7B%22step%22:%22login%22,%22username%22:%22admin%22,%22password%22:%22password%22%7D%5D%7D Mentioned by @bph in the Outreach Slack channel.

I will comment on what I notice. This looks very promising! Going to Templates I now see a Active template area in the left side Templates menu. In the Templates Canvas I see a blue Active button under each template. ---> Can the button be clicked to deactivate? (At present - no.)

Clicking the 3 dot dropdown to deactivate. The template is removed from the Active templates Canvas. I wonder where it went. I look to the left looking for a Deactivated templates section but do not see one. ---> Having a Deactivated templates section. (somewhat similar to trash.)

In regards to active templates. There are various templates for blog be it home, index etc. That might also mean that one of the blog templates will likely be marked as active while the other blog templates are disactivated.

Brain storming: This can also mean that if one imports templates / switches themes and have templates follow along from one theme to another theme - (not possible yet that I know of) that some templates will be marked as active while other templates are marked as deactivated. The tricky part is likely which templates are active and which templates are deactivated.

Thank you for working on this Ella and Riad! This is a very exciting feature to get in place!

We can switch to "template editing" from the "template inspector control" of a post or a page (should it say "duplicate" there when it's a theme template)?

The home page of the site editor allows you to click the preview to "edit" the front page or front page templates, should it trigger a modal or something to ask you to duplicate when it's a "theme template" still?

I think ideally we have the same UX for all flows, which leads me to reconsider making theme templates uneditable from the data view. Instead, perhaps we display a dialog whenever the user attempts to edit a theme asset, explaining what will happen. This could also be a spot to gather information like the name, and whether to duplicate as a draft or activate immediately.

In all cases we can show a confirmatory Snackbar after duplication, with a link to edit.

This UX could theoretically be applied to Theme Patterns.

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