[wp-trac] [WordPress Trac] #36581: Customizer Header Image Control should extend the cropped image control

[WordPress Trac]

#36581: Customizer Header Image Control should extend the cropped image control
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 Reporter:  celloexpressions  |      Owner:
     Type:  enhancement       |     Status:  new
 Priority:  normal            |  Milestone:  Future Release
Component:  Customize         |    Version:  3.9
 Severity:  normal            |   Keywords:  needs-patch
  Focuses:  javascript        |
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 `WP_Customize_Header_Image_Control` was written (in 3.9) before all of the
 other customizer media controls were refactored to use the media library
 (in 4.1) and additional controls were introduced (in 4.2 and 4.3). It uses
 an almost entirely separate codebase right now, and by merging it back in
 to use the newer functions, future enhancements can be made in fewer
 places to apply to more controls, and the cropped-image control will
 likely benefit with some new reusable features as well. Additionally, this
 cleanup will simplify the codebase and make it much easier to contribute
 to and understand the way the headers UI works, and why.

 Ideally, we would be able to use `WP_Customize_Cropped_Image_Control`
 directly for header images by bringing more features that are currently
 specific to headers to all media controls. However, in practice we may end
 up needing it to remain a distinct control for various reasons.
 Regardless, it should extend WP_Customize_Cropped_Image_Control directly
 and make use of its functions in both PHP and JS where possible.
 Additionally, it should leverage the core API for JS-templated contols
 introduced in 4.1.

 See #29211, and #32861, which would likely be fixed in the process of
 implementing this ticket.

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Ticket URL: <https://core.trac.wordpress.org/ticket/36581>
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