Additionally, this changeset fixes some of the `block.json` and `theme.json` files in PHPUnit tests by adding missing `title` properties to satisfy the schema. Those changes have no impact on the runtime whatsoever and do not change the result of unit tests.
Note that some block and theme JSON files still aren't valid according to the schema. Fixing is underway; the required changes will be merged subsequently.
Props jonsurrell, dmsnell, gziolo.
Fixes#60255.
git-svn-id: https://develop.svn.wordpress.org/trunk@57336 602fd350-edb4-49c9-b593-d223f7449a82
Adds `_wp_theme_json_webfonts_handler()` for handling `fontFace` declarations in a theme's `theme.json` file to generate the `@font-face` styles for both the editor and front-end.
Design notes:
* It is not a public API, but rather an internal, Core-only handler.
* It is a stopgap implementation that will be replaced when the public Webfonts API is introduced in Core.
* The code design is intentional, albeit funky, with the purpose of avoiding backwards-compatibility issues when the public Webfonts API is introduced in Core.
* It hides the inter-workings.
* Does not exposing API ins and outs for external consumption.
* Only works for `theme.json`.
* Does not provide registration or enqueuing access for plugins.
For more context on the decision to include this stopgap and the Webfonts API, see:
* Core's PR 40493 https://github.com/WordPress/gutenberg/pull/40493
* Gutenberg's tracking issue 40472 https://github.com/WordPress/gutenberg/issues/40472
Props aristath, hellofromTonya, peterwilsoncc, costdev, jffng, zieladam, gziolo, bph, jonoaldersonwp, desrosj.
See #55567, #46370.
git-svn-id: https://develop.svn.wordpress.org/trunk@53282 602fd350-edb4-49c9-b593-d223f7449a82
