[wp-trac] [WordPress Trac] #29723: Media: extract attachment-preview logic from attachment-details-two-column template

[WordPress Trac]

#29723: Media: extract attachment-preview logic from attachment-details-two-column
template
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 Reporter:  celloexpressions  |      Owner:
     Type:  enhancement       |     Status:  new
 Priority:  normal            |  Milestone:  4.1
Component:  Media             |    Version:  4.0
 Severity:  normal            |   Keywords:  needs-patch
  Focuses:  javascript        |
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 For #21483, we'd like to display media attachments previews in the
 Customizer controls UI after an attachment has been selected from the
 media modal. As this applies to both WP_Customize_Upload control and
 WP_Customize_Image_Control, we would ideally leverage the existing logic
 that displays either the selected image, an audio/video upload preview, or
 the appropriate file type icon. Currently this functionality exists for
 the media library grid view details modal, but it is within a template
 that also prints the attachment details UI (`attachment-details-two-
 column` template).

 I'm supplying a basic patch to convey this a bit more clearly, but I'm not
 familiar with best practices for how this would be implemented in the JS
 side, so I'll leave formal patching to someone more familiar with this
 code.

 This is a dependency for #21483 now, unless it would be better to just
 duplicate the logic there... but I'm guessing that's not a great idea.

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Ticket URL: <https://core.trac.wordpress.org/ticket/29723>
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