[wp-trac] [WordPress Trac] #35210: Add notification area to Customizer

[WordPress Trac]

#35210: Add notification area to Customizer
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 Reporter:  westonruter  |       Owner:
     Type:  enhancement  |      Status:  new
 Priority:  high         |   Milestone:  4.6
Component:  Customize    |     Version:
 Severity:  normal       |  Resolution:
 Keywords:  needs-patch  |     Focuses:  ui, javascript
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Comment (by westonruter):

 In terms of the JavaScript API, I think it should be closely aligned with
 control-level notifications (#34893, #29932). The global notification and
 the control-level notification could both have instances of a
 `NotificationCollection` that contains instances of `NotificationModel`,
 where the model contains `message` and `type` (whether an error or a
 notice). The global notification and the control-level notification should
 both render the notification message(s) in response to changes to their
 respective `NotificationCollection`.

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Ticket URL: <https://core.trac.wordpress.org/ticket/35210#comment:60>
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