[wp-trac] [WordPress Trac] #32197: Twemoji script and editor expansion combo making editor ridiculously slow in some circumstances

[WordPress Trac]

#32197: Twemoji script and editor expansion combo making editor ridiculously slow
in some circumstances
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 Reporter:  Otto42        |       Owner:
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  4.2.2
Component:  TinyMCE       |     Version:  4.1
 Severity:  major         |  Resolution:
 Keywords:                |     Focuses:
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Comment (by azaozz):

 Still feels somewhat slow for long posts. Caused by the (unnoticeable)
 scrolling on every keyup (input).

 32197.3.patch: look at the textEditor.value.length before attempting to
 reduce the height. That makes it quite faster for very long posts.

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Ticket URL: <https://core.trac.wordpress.org/ticket/32197#comment:18>
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