[wp-trac] [WordPress Trac] #17688: Backspace Lag in Visual Editor under FF 4 with Win 7

[WordPress Trac]

#17688: Backspace Lag in Visual Editor under FF 4 with Win 7
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 Reporter:  macmanx       |       Owner:  azaozz
     Type:  defect (bug)  |      Status:  reviewing
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  TinyMCE       |     Version:  3.2
 Severity:  normal        |  Resolution:
 Keywords:                |
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Changes (by azaozz):

 * owner:   => azaozz
 * status:  new => reviewing
 * version:  3.1.3 => 3.2


Comment:

 Cannot reproduce this on win7 and FF 4.0.1.

 There has always been some lag when using backspace as there isn't a
 native browser support for it in contentEditable/body.designMode. TinyMCE
 implements it's own methods to handle the HTML tags/DOM nodes when
 backspacing.

 The lag is usually minimal (not noticeable) even on slower computers and
 older browsers. It depends on the browser and on how deep in the DOM the
 selected element/caret is. It also can be affected by other TinyMCE
 plugins. 0.016 sec. lag sounds about right. On older computers and older
 browsers it can go as high as 0.07 sec. but that is still unnoticeable for
 the user.

 Don't think there is a direct link between hardware acceleration and this.
 It's the speed of Javascript running in the browser. It rather looks like
 FF4 problem on win7 when running intensive JS and hardware acceleration is
 on.

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Ticket URL: <http://core.trac.wordpress.org/ticket/17688#comment:1>
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