[Bugs] #2793 UNSP: Read keyboard scroll doesn't work on startup or after a click in the toolbar

[Sugar Labs Bugs]

#2793: Read keyboard scroll doesn't work on startup or after a click in the
toolbar
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    Reporter:  carrott                    |          Owner:  sayamindu                  
        Type:  defect                     |         Status:  new                        
    Priority:  Unspecified by Maintainer  |      Milestone:  Unspecified by Release Team
   Component:  Read                       |        Version:  0.88.x                     
    Severity:  Unspecified                |       Keywords:  dextrose                   
Distribution:  Dextrose                   |   Status_field:  Unconfirmed                
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 Read 86 on os508dx starts up in a mode where you cannot scroll with the
 keyboard. The square and tick game keys will zoom the document, but you
 can't move it. If you click on the text, then scrolling works. If you
 click on the toolbar, scrolling stops working.

 Scrolling should always work, except possibly maybe if you've clicked in
 one of the text boxes in the menu. Some thought should be given to how to
 make intuitive, especially given the lack of a mouse in tablet mode will
 force you to untablet to get to the mouse to click.

 It took me several minutes to discover what was wrong.

 This was while reading a PDF. This might be related to #2206 and #1595

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Ticket URL: <http://bugs.sugarlabs.org/ticket/2793>
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