[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:  normal       |   Milestone:  Future Release
Component:  Customize    |     Version:
 Severity:  normal       |  Resolution:
 Keywords:  needs-patch  |     Focuses:  ui, javascript
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Comment (by Fab1en):

 I made a [attachment:35210.2.patch second version of my patch] with the
 following enhancements :
 * the notification is displayed on top of other informations
 * several notifications can be stacked
 * the notification is inserted dynamically into the DOM with the help of a
 JS template
 * the error message is generated on the server in PHP, and send back to
 the customizer to be displayed
 * a test notification can be triggered by selecting the "test error
 notification" panel, entering a custom error message and saving.

 Could anyone test this patch and see if something is missing ?

 The next step is to use this mechanism to display real life errors. Does
 anyone knows an easily reproductible error that could be displayed this
 way ?

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Ticket URL: <https://core.trac.wordpress.org/ticket/35210#comment:51>
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