[wp-trac] [WordPress Trac] #63919: Block Bindings: Conditional rendering of HTML elements corresponding to block attrs

[WordPress Trac]

#63919: Block Bindings: Conditional rendering of HTML elements corresponding to
block attrs
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 Reporter:  Bernhard Reiter  |      Owner:  (none)
     Type:  enhancement      |     Status:  assigned
 Priority:  normal           |  Milestone:  6.9
Component:  General          |    Version:
 Severity:  normal           |   Keywords:
  Focuses:                   |
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 An Image block will only include a `<figcaption>` HTML element in its
 saved markup if the block's `caption` attribute is not empty; the same
 applies to the Pullquote block's `citation` attribute, which corresponds
 to a `<cite>` element.

 This poses a problem when adding Block Bindings support for those
 attributes, as the Block Bindings logic depends on the presence of those
 HTML elements in order to replace their inner HTML with the value obtained
 from the respective Block Bindings source.

 One possible solution is to change the editor-side block logic so that
 includes those HTML elements whenever the corresponding attribute is bound
 to a Block Bindings source. This change needs to be made to the block
 JavaScript code, i.e. inside of Gutenberg.

 This approach needs to be complemented by server-side logic that will
 remove those HTML elements prior to rendering if their value is empty.
 (E.g. if the Block Bindings source did not return a non-empty value for
 the given attribute after all.)

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Ticket URL: <https://core.trac.wordpress.org/ticket/63919>
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