Replace the body textarea with a Monaco editor #9532

- LandingPage is a new document type rendered by Frontend which constructs its page using blocks specified in the details of the content item (not to be confused with the reusable content blocks project). - Here we add it as an editionable object, add a PublishingAPI presenter to allow it to be published, and update Whitehall's list of allowed rendering apps to include Frontend (this is the first, but the consolidation work means it won't be the last document type that will need this).

- _form partial is required for editions - add resource route

- Add additional_significant_fields partial - This handles editing the base_path the first time the document is created - allow the slug parameter in EditionsController - skip updating document slugs for landing pages. We want to be able to specify the base_path explicitly for these editions, so having them set automatically from the title is not desired. Co-authored-by: Richard Towers <[email protected]>

- Add redirect to new_document_controller to allow it to bounce landing pages to their controller.

- base_path must exist and not already be taken - body must be valid YAML (and more, root element must be blocks: - we can expand this to stricter testing, but maybe that should be by schema?)

This should provide a much better editing experience for YAML files. It gives us syntax highlighting, code folding, line numbers, and a whole bunch of other features. It does not yet provide schema validation, or schema-powered autocomplete, but that's a possible improvement for later. We're using ecmascript modules to load the third party javascript here, rather than installing it with npm. This is just because bundling the code and making the rails asset pipeline aware of it is a yak shave. Hopefully the YAML editor won't be a long term component, so this will be a temporary oddity.

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Replace the body textarea with a Monaco editor #9532

Replace the body textarea with a Monaco editor #9532

Commits on Oct 17, 2024

Replace the body textarea with a Monaco editor #9532

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Replace the body textarea with a Monaco editor #9532

Commits on Oct 17, 2024