[META] Content templates UI for 1.0: only nodes, no exposed slots, no replacement for the view mode/display UI (#3541000) · Issues · project / canvas

[META] Content templates UI for 1.0: only nodes, no exposed slots, no replacement for the view mode/display UI

>>> [!note] Migrated issue   Reported by: [hooroomoo](https://www.drupal.org/user/3688872) >>> <h3 id="overview">Overview</h3> Story map key: Backend - dark blue Frontend - blue Lower priority/need scope clarity - light blue <img src="https://www.drupal.org/files/issues/2025-08-12/Screenshot%202025-08-12%20at%205.33.11%E2%80%AFPM.png" alt="storymap"> 🎾 = top priority 😄 ✨= nice to have Remaining Backend: <a href="https://www.drupal.org/project/canvas/issues/3548854" title="Status: Active">#3548854: Add test coverage ensuring consistency on previews markup and live markup when using a content template</a> Remaining Frontend: <a href="https://www.drupal.org/project/canvas/issues/3558719" title="Status: Closed (fixed)">#3558719: Linking then unlinking a field renders a wrong Field Widget: corrupt `StaticPropSource` is sent by client, server should detect this</a> <a href="https://www.drupal.org/project/canvas/issues/3546760" title="Status: Closed (fixed)">#3546760: Add e2e test for `ContentTemplates` feature</a> <a href="https://www.drupal.org/project/canvas/issues/3579477" title="Status: Active">#3579477: Disallow creating a pattern from component tree with linked props (on ContentTemplates) — currently throws error</a> Completed Backend: ✅ <a href="https://www.drupal.org/project/experience_builder/issues/3510896" title="Status: Closed (fixed)">#3510896: Add a new internal HTTP API for candidate `DynamicPropSource`s to enable a `ContentTemplate` UI</a> ✅ <a href="https://www.drupal.org/project/experience_builder/issues/3529836" title="Status: Closed (fixed)">#3529836: Enable starting with an empty XB UI (so without first having to create an entity with a component tree)</a> ✅ <a href="https://www.drupal.org/project/experience_builder/issues/3543188" title="Status: Closed (fixed)">#3543188: `ContentTemplate`'s `status` should determine if it is active</a> ✅ <a href="https://www.drupal.org/project/canvas/issues/3541021" title="Status: Closed (fixed)">#3541021: Refactor `ApiLayoutController` to support `ContentTemplate`s</a> ✅ <a href="https://www.drupal.org/project/canvas/issues/3541006" title="Status: Closed (fixed)">#3541006: Create HTTP Endpoint for Content Template Preview Entities</a> ✅ <a href="https://www.drupal.org/project/canvas/issues/3541015" title="Status: Closed (fixed)">#3541015: Create HTTP Endpoint for View modes/content templates</a> ✅ <a href="https://www.drupal.org/project/canvas/issues/3544865" title="Status: Closed (fixed)">#3544865: `CanvasUiAccessCheck` should grant access if the user has access to content templates or code components</a> ✅ <a href="https://www.drupal.org/project/canvas/issues/3543834" title="Status: Closed (fixed)">#3543834: Refactor (or attempt to) all or most `ApiLayoutController*Test` classes to also test `ContentTemplate` entities</a> ✅ <a href="https://git.drupalcode.org/project/canvas/-/work_items/3513590" class="drupalorg-gitlab-link">https://git.drupalcode.org/project/canvas/-/work_items/3513590</a> ✅ <a href="https://www.drupal.org/project/canvas/issues/3546260" title="Status: Closed (fixed)">#3546260: `ApiLayoutController::getLabel()` should return preview entity label for content templates</a> ✅ <a href="https://git.drupalcode.org/project/canvas/-/work_items/3503038" class="drupalorg-gitlab-link">https://git.drupalcode.org/project/canvas/-/work_items/3503038</a> ✅ <a href="https://www.drupal.org/project/canvas/issues/3541057" title="Status: Closed (fixed)">#3541057: Render `DynamicPropSource`s in `ApiLayoutController` for `ContentTemplate`s using the provided preview entity</a> (which is blocked by <a href="https://git.drupalcode.org/project/canvas/-/work_items/3513590" class="drupalorg-gitlab-link">https://git.drupalcode.org/project/canvas/-/work_items/3513590</a>) ✅ <a href="https://git.drupalcode.org/project/canvas/-/work_items/3520487" class="drupalorg-gitlab-link">https://git.drupalcode.org/project/canvas/-/work_items/3520487</a> ✅ <a href="https://www.drupal.org/project/canvas/issues/3548165" title="Status: Closed (fixed)">#3548165: Components in `ContentTemplate`s and `PageRegion`s are not always rendered in correct order</a> ✅ <a href="https://www.drupal.org/project/canvas/issues/3546996" title="Status: Closed (fixed)">#3546996: Component instances populated by linked `DynamicPropSource`s, but inaccessible entity/field: fall back to `NULL` for these values, triggering fallback rendering</a> ✅ <a href="https://www.drupal.org/project/canvas/issues/3547598" title="Status: Closed (fixed)">#3547598: Refine API response with DynamicPropSource suggestions to provide better UX</a> ✅ <a href="https://www.drupal.org/project/canvas/issues/3545859" title="Status: Closed (fixed)">#3545859: Add a `host-entity-url` prop source for linking to the host entity</a> 🚫 <a href="https://www.drupal.org/project/canvas/issues/3541054" title="Status: Closed (won't fix)">#3541054: Require `ContentTemplate`s to have at least one `dynamic` or `host-entity-url` prop source</a> Completed Frontend: ✅ <a href="https://git.drupalcode.org/project/canvas/-/work_items/3502887" class="drupalorg-gitlab-link">https://git.drupalcode.org/project/canvas/-/work_items/3502887</a> ✅ <a href="https://www.drupal.org/project/canvas/issues/3541027" title="Status: Closed (fixed)">#3541027: Create new Templates menu</a> ✅ <a href="https://www.drupal.org/project/canvas/issues/3541031" title="Status: Closed (fixed)">#3541031: Render template and support component operations in preview canvas</a> ✅ <a href="https://www.drupal.org/project/canvas/issues/3541033" title="Status: Closed (fixed)">#3541033: Add ability to switch content used by template using top navigation</a> ✅<a href="https://www.drupal.org/project/canvas/issues/3541034" title="Status: Closed (fixed)">#3541034: Render component instance form for `ContentTemplate` and support updating static props</a> ✅<a href="https://www.drupal.org/project/canvas/issues/3541037" title="Status: Closed (fixed)">#3541037: Allow linking `ContentTemplate` SDC/code component instance props to fields (aka finally use `DynamicPropSource`s!)</a> <del>(⚠️be aware: FE and BE need to be able support dynamic values for generating the component props form for template after a field gets set to a prop)</del> ✅<a href="https://www.drupal.org/project/canvas/issues/3541035" title="Status: Closed (fixed)">#3541035: Make UI to publish a `ContentTemplate` match designs</a> ✅<a href="https://www.drupal.org/project/canvas/issues/3545855" title="Status: Closed (fixed)">#3545855: Followup for #3541027: UX and styling improvements for Templates menu and sidebar components</a> ✅<a href="https://www.drupal.org/project/canvas/issues/3546319" title="Status: Closed (fixed)">#3546319: Hide the page data form when a content template is open</a> ✅<a href="https://www.drupal.org/project/canvas/issues/3546737" title="Status: Closed (fixed)">#3546737: Empty/New view of Content Template editor to match design.</a> ✅<a href="https://www.drupal.org/project/canvas/issues/3547085" title="Status: Closed (fixed)">#3547085: Open template upon creation, only show <ContentPreviewSelector/> for templates, update editor frame preview when switching content</a> ✅<a href="https://www.drupal.org/project/canvas/issues/3547262" title="Status: Closed (fixed)">#3547262: Redirect to Content Template after creating first node of bundle</a> ✅<a href="https://www.drupal.org/project/canvas/issues/3547294" title="Status: Closed (fixed)">#3547294: Handle when suggestedEntityId node or template is deleted in `ContentTemplate`</a> ✅<a href="https://www.drupal.org/project/canvas/issues/3548395" title="Status: Closed (fixed)">#3548395: Linker does not appear for certain field widgets</a> ✅<a href="https://www.drupal.org/project/canvas/issues/3548664" title="Status: Closed (fixed)">#3548664: Some Linker choices have no effect</a> ✅<a href="https://www.drupal.org/project/canvas/issues/3547513" title="Status: Closed (fixed)">#3547513: UI polish for `ContentTemplates` feature</a> ✅<a href="https://www.drupal.org/project/canvas/issues/3548320" title="Status: Closed (fixed)">#3548320: Contextual panel flickers when linking prop to field</a> ✅<a href="https://www.drupal.org/project/canvas/issues/3548186" title="Status: Closed (fixed)">#3548186: Resolve 500 error caused when editorFrameContext was lost during navigation </a> ✅<a href="https://www.drupal.org/project/canvas/issues/3548761" title="Status: Closed (fixed)">#3548761: Can't link (pick a DynamicPropSource) to populate an optional explicit input if that DynamicPropSource evaluates to `NULL` (typically: field is empty)</a> ✅<a href="https://www.drupal.org/project/canvas/issues/3548322" title="Status: Closed (fixed)">#3548322: Improve how list of field suggestions is displayed in the UI for `ContentTemplates` and remove `ContentTemplates` from feature flag</a> ✅<a href="https://www.drupal.org/project/canvas/issues/3555068" title="Status: Closed (fixed)">#3555068: Linking a `HostEntityUrlPropSource` to populate a `type: string, format: uri|uri-reference` in a `ContentTemplate` has no effect</a> ✅<a href="https://www.drupal.org/project/canvas/issues/3551665" title="Status: Closed (fixed)">#3551665: SDC with "image" + string prop: static image lost upon linking the string prop to a `DynamicPropSource`</a> Completed Shape matching ✅ <a href="https://www.drupal.org/project/canvas/issues/3548292" title="Status: Closed (fixed)">#3548292: Find required field instance matches for image (`json-schema-definitions://canvas.module/image`) and video prop shapes</a> ✅ <a href="https://www.drupal.org/project/canvas/issues/3548295" title="Status: Closed (fixed)">#3548295: `type: string` shape matching: find `Node`'s `uid` ("Author") field instance `type: string`</a> ✅ <a href="https://www.drupal.org/project/canvas/issues/3548686" title="Status: Closed (fixed)">#3548686: Allow mapping "List (integer)" field type to `type: integer` and "List (float)" to `type: float`</a> ✅ <a href="https://www.drupal.org/project/canvas/issues/3549034" title="Status: Closed (fixed)">#3549034: Shape matching fails on `file` field instances targeting multiple MIME media types (multiple "MIME wildcards")</a> ✅ <a href="https://www.drupal.org/project/canvas/issues/3551339" title="Status: Closed (fixed)">#3551339: Suggest only relevant DynamicPropSources</a> ✅ <a href="https://www.drupal.org/project/canvas/issues/3541361" title="Status: Closed (fixed)">#3541361: Find optional field instance matches for `type: object` props (images + videos), including for optional fields on bundleless entity types (e.g. `User`'s `user_picture`)</a> ✅ <a href="https://www.drupal.org/project/canvas/issues/3557612" title="Status: Patch (to be ported)">#3557612: `::matchEntityPropsForObject()` is too naïve: nonsensical `type: object` shape matches and useless labels</a> ✅ <a href="https://www.drupal.org/project/canvas/issues/3551455" title="Status: Closed (fixed)">#3551455: HostEntityUrlPropSource should be able to support absolute or relative URLs, URL options</a> <del>Lower priority/need scope clarity</del> Confirmed with product these are out of scope for 1.0 <a href="https://www.drupal.org/project/canvas/issues/3541038" title="Status: Postponed (maintainer needs more info)">#3541038: Render template data form</a> <a href="https://www.drupal.org/project/canvas/issues/3541039" title="Status: Active">#3541039: Allow creating/deleting view mode from UI</a> <a href="https://www.drupal.org/project/canvas/issues/3541054" title="Status: Closed (won't fix)">#3541054: Require `ContentTemplate`s to have at least one `dynamic` or `host-entity-url` prop source</a> <a href="https://www.drupal.org/project/canvas/issues/3551343" title="Status: Active">#3551343: Add type-appropriate icons for LinkedFieldBox.tsx in `ContentTemplates`</a> Non-hard-blocking bugs identified along the way — likely needs product manager decisions and triage ✅✨<a href="https://www.drupal.org/project/canvas/issues/3546119" title="Status: Closed (fixed)">#3546119: Templates menu must be visible for users with the `administer content templates` permission</a> ✅ <a href="https://www.drupal.org/project/canvas/issues/3548298" title="Status: Closed (fixed)">#3548298: Support linking field types marked SUPPORTED from #3512433 to props in a `ContentTemplate`</a> → everything claimed to be supported has been proven to be working, now provides a handy overview of findings for @lauriii to prioritize in the future: <a href="https://www.drupal.org/project/canvas/issues/3548298" title="Status: Closed (fixed)">#3548298: Support linking field types marked SUPPORTED from #3512433 to props in a `ContentTemplate`</a> <a href="https://git.drupalcode.org/project/canvas/-/work_items/3522718" class="drupalorg-gitlab-link">https://git.drupalcode.org/project/canvas/-/work_items/3522718</a> ✅ <a href="https://www.drupal.org/project/canvas/issues/3548749" title="Status: Closed (fixed)">#3548749: Allow mapping "List (string)" field type to `type: string`, with a twist: don't map the stored value, but its key/name/label</a> <a href="https://www.drupal.org/project/canvas/issues/3548859" title="Status: Active">#3548859: Warn "Display author and date information" has no effect when using Canvas</a> ✅ <a href="https://git.drupalcode.org/project/canvas/-/work_items/3533675" class="drupalorg-gitlab-link">https://git.drupalcode.org/project/canvas/-/work_items/3533675</a> ✅ <a href="https://www.drupal.org/project/canvas/issues/3563380" title="Status: Closed (fixed)">#3563380: Allow linking integer timestamps to `type: string, format: date`: allow `DynamicPropSource` to optionally use a single-input adapter plugin</a> > Related issue: [Issue #3518248](https://www.drupal.org/node/3518248) > Related issue: [Issue #3538861](https://www.drupal.org/node/3538861)

issue

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