[wp-trac] [WordPress Trac] #43777: Refactor Customizer expandable section JS for ease of reuse for core, themes, plugins

[WordPress Trac]

#43777: Refactor Customizer expandable section JS for ease of reuse for core,
themes, plugins
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 Reporter:  joyously     |      Owner:  (none)
     Type:  enhancement  |     Status:  new
 Priority:  normal       |  Milestone:  Awaiting Review
Component:  Customize    |    Version:
 Severity:  normal       |   Keywords:
  Focuses:  javascript   |
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 In the Customizer, the widgets section and the menu section have
 expandable portions. This code seems to be duplicated, and yet not
 reusable for themes/plugins to easily create expandable portions.

 This should be part of the object inheritance for the Core Customizer
 objects.

 Same question asked at WPSE in early 2016:
 https://wordpress.stackexchange.com/questions/214189/

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Ticket URL: <https://core.trac.wordpress.org/ticket/43777>
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