[wp-trac] [WordPress Trac] #36842: More global event hooks using the media.events, like "modal:open", "modal:close", etc

[WordPress Trac]

#36842: More global event hooks using the media.events, like "modal:open",
"modal:close", etc
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 Reporter:  jtsternberg                 |      Owner:
     Type:  feature request             |     Status:  new
 Priority:  normal                      |  Milestone:  Awaiting Review
Component:  Media                       |    Version:  trunk
 Severity:  normal                      |   Keywords:
  Focuses:  javascript, administration  |
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 There seem to be plentiful hooks in the media backbone system, but most
 require listening to the frame/controller/etc vs having global
 hooks/events to listen to. This, obviously, would be much like WP's
 `do_action`. Each event should pass contextual info including the
 frame/controller/etc object.

 Select2 (as well as most JS modal libs) provides an example of prior art:
 [https://select2.github.io/examples.html#events]

 Using that implementation as an example, we could do something like:

 `wp:media:open` is fired whenever the modal is opened. `wp:media:opening`
 is fired before this and can be prevented.

 `wp:media:close` is fired whenever the modal is closed. `wp:media:closing`
 is fired before this and can be prevented.

 `wp:media:highlight` is fired whenever a result is highlighted (clicked).

 `wp:media:unhighlight` is fired whenever a result is unhighlighted.

 `wp:media:select` is fired when a result is chosen and modal is closed.
 `wp:media:selecting` is fired before this and can be prevented.

 `wp:media:change` is fired whenever the modal changes state.
 `wp:media:changing` is fired before this and can be prevented.

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Ticket URL: <https://core.trac.wordpress.org/ticket/36842>
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