[wp-trac] [WordPress Trac] #34549: Theme Customizer: Disable "Change [theme]" button when only one theme available

[WordPress Trac]

#34549: Theme Customizer: Disable "Change [theme]" button when only one theme
available
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 Reporter:  danielbachhuber   |       Owner:  westonruter
     Type:  defect (bug)      |      Status:  accepted
 Priority:  normal            |   Milestone:  4.4
Component:  Customize         |     Version:  4.2
 Severity:  normal            |  Resolution:
 Keywords:  has-patch commit  |     Focuses:
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Comment (by westonruter):

 Actually, silly me, we can just use `count( $this->controls )` to
 determine how many themes are added. See [attachment:34549.4.diff].

 In a future release we can decided whether the themes section itself
 should be hidden entirely if there is only one available theme.

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Ticket URL: <https://core.trac.wordpress.org/ticket/34549#comment:5>
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