[wp-trac] [WordPress Trac] #59338: Themes: Inject theme attribute during block serialization

[WordPress Trac]

#59338: Themes: Inject theme attribute during block serialization
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 Reporter:  Bernhard Reiter  |      Owner:  Bernhard Reiter
     Type:  enhancement      |     Status:  assigned
 Priority:  normal           |  Milestone:  6.4
Component:  Themes           |    Version:
 Severity:  normal           |   Keywords:
  Focuses:                   |
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 Rather than using `_inject_theme_attribute_in_block_template_content` to
 inject the `theme` attribute into all Template Part blocks found in a
 given file-based Block Template, introduce a new function tentatively
 called `_inject_theme_attribute_in_template_part_block`, and use that as
 second argument to `serialize_blocks()` (introduced in [56557]) in order
 to inject said attribute during tree traversal for serialization.

 This allows for a more modular approach that will eventually be extended
 to implement automatic insertion of hooked blocks (see #59313).

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Ticket URL: <https://core.trac.wordpress.org/ticket/59338>
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