[wp-trac] [WordPress Trac] #27320: Unify media controls

[WordPress Trac]

#27320: Unify media controls
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 Reporter:  melchoyce       |       Owner:
     Type:  task (blessed)  |      Status:  new
 Priority:  normal          |   Milestone:  3.9
Component:  Editor          |     Version:  trunk
 Severity:  normal          |  Resolution:
 Keywords:  ui-feedback     |     Focuses:  ui, administration
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Comment (by wonderboymusic):

 From [27640]:

 Unifying media controls and supporting playlists in the editor:
 * Support a caption attribute for audio and video shortcodes
 * In `wp.media.audio|video`, rename update to shortcode to allow these
 models to share the same mixins as `wp.media.collection` subclasses
 * When sending an audio or video shortcode to the editor, create a default
 caption if the user hasn't entered one. This currently only displays in
 the editor, not on the front end. Captions aren't tied to a specific
 attachment here because external sources are supported.
 * In the `wp.mce.media mixin`, in the edit method, read `attr` instead of
 `data` when attempting to parse the encoded shortcode. data does not
 automatically update when the attribute changes. This was a blessing to
 debug.
 * Add `wp.mce.media.PlaylistView` to support playlist views in TinyMCE
 * Expose `WPPlaylistView` to global scope and suppress auto-parsing of
 playlist nodes when in the admin. Allow `WPPlaylistView` to be passed
 metadata on creation instead of requiring a JSON blob to be parsed.
 * Remove all of the playlist logic from the `wpgallery` TinyMCE plugin.
 * In `wp_prepare_attachment_for_js()` return more data for audio/video so
 that playlists can have parity in the admin/front end.

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Ticket URL: <https://core.trac.wordpress.org/ticket/27320#comment:20>
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