[wp-trac] [WordPress Trac] #28328: Focus on editing, while editing

[WordPress Trac]

#28328: Focus on editing, while editing
-------------------------+-------------------------------------------------
 Reporter:  markjaquith  |       Owner:
     Type:  task         |      Status:  new
  (blessed)              |   Milestone:  4.0
 Priority:  high         |     Version:
Component:  Editor       |  Resolution:
 Severity:  critical     |     Focuses:  ui, accessibility, javascript,
 Keywords:  has-patch    |  administration
  needs-testing          |
-------------------------+-------------------------------------------------

Comment (by stephdau):

 Proving my point more so than fixing the issue, calculating scrolling
 based on 2 pixels move rather than 1 makes the issue less prominent (but
 still one when a user scrolls passed the end of a document, "thanks" to
 scrolling elastic/momentum effect.

 {{{
 if ( fixedSide && windowPos > lastScrollPosition + 1 ) {
         // Scrolling down
         sideScrollTrigger = ( $sideSortables.height() - ( windowHeight -
 56 ) );

         if ( ! scrolledSide && sideScrollTrigger > 1 && windowPos >
 sideScrollTrigger && windowPos > $wrap.offset().top ) {
                 scrolledSide = true;
                 $postboxContainer.css( 'top', -( sideScrollTrigger - 36 )
 );
         }
         console.log('down', fixedSide, scrolledSide, windowPos,
 lastScrollPosition );
 } else if ( scrolledSide && windowPos < lastScrollPosition - 1 ) {
         scrolledSide = false;
         $postboxContainer.css( 'top', '' );
         console.log('up', fixedSide, scrolledSide, windowPos,
 lastScrollPosition );
 }
 }}}

 Leads to: https://cloudup.com/cauajcaOEqi

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Ticket URL: <https://core.trac.wordpress.org/ticket/28328#comment:70>
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