[wp-trac] [WordPress Trac] #39686: Upgrade MediaElement to 4.X

[WordPress Trac]

#39686: Upgrade MediaElement to 4.X
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 Reporter:  rafa8626            |       Owner:
     Type:  enhancement         |      Status:  new
 Priority:  normal              |   Milestone:  4.8.1
Component:  External Libraries  |     Version:  4.7.1
 Severity:  normal              |  Resolution:
 Keywords:  has-patch           |     Focuses:  accessibility, javascript
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Changes (by afercia):

 * focuses:  javascript => accessibility, javascript


Comment:

 Worth noting upgrading is also a matter of improved usability and
 accessibility. For example, when using the keyboard and tabbing through
 the player controls, once the last focusable control gets blurred, all the
 controls fade out:

 [[Image(https://cldup.com/nbZW2EWmZS.png)]]

 While this makes sense when playing a video, it happens also when playing
 an audio file:

 [[Image(https://cldup.com/-vCeRIT5MY.png)]]

 Controls get hidden offscreen, they're still focusable and actionable but
 visually completely hidden. This was resolved in MediaElement version
 2.22.1 (WordPress currently uses 2.22.0) released on 2016/08/18,
 [https://github.com/mediaelement/mediaelement/blob/master/changelog.md see
 changelog] and [https://github.com/mediaelement/mediaelement/pull/1804 see
 related pull request] on GitHub.
 Worth noting that the controls don't come back into view when tabbing
 backwards, it seems to me this happens also on the latest MediaElement
 version and it would be great if it could be fixed upstream. /cc @rafa8626
 will create an issue on GH :)
 I'd just like to note that ''not'' including the non-minified version in
 WordPress makes debugging this kind of things a bit hard.

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Ticket URL: <https://core.trac.wordpress.org/ticket/39686#comment:65>
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