[wp-trac] [WordPress Trac] #44743: Try Gutenberg Callout: broken UI when clicking multiple times on Install Classic Editor

[WordPress Trac]

#44743: Try Gutenberg Callout: broken UI when clicking multiple times on Install
Classic Editor
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 Reporter:  mathieuhays   |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  General       |    Version:  4.9.8
 Severity:  normal        |   Keywords:
  Focuses:                |
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 ** Steps to reproduce:
 1. Click on "Install Classic Editor"
 2. Button changes to "Installing..."
 3. Click again on the button (nothing visual happens at that point, still
 installing)
 4. Button changes to "Activate Classic Editor" with the progress icon
 (rotating arrows) still showing. An error message is also displayed
 mentioning the directory already exist.


 **How to fix:

 Prevent the button callback to send another install request if it's
 already installing.

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Ticket URL: <https://core.trac.wordpress.org/ticket/44743>
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