[Bugs] #4060 sugar-toolkit-gtk3 HIGH: Bad behaviour of gestures inside a ScrolledWindow

[Sugar Labs Bugs]

#4060: Bad behaviour of gestures inside a ScrolledWindow
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    Reporter:  humitos             |          Owner:  garnacho
        Type:  defect              |         Status:  new     
    Priority:  High                |      Milestone:  0.98    
   Component:  sugar-toolkit-gtk3  |        Version:  0.97.x  
    Severity:  Major               |       Keywords:  gtk     
Distribution:  OLPC                |   Status_field:  Assigned
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Comment(by garnacho):

 This patch makes scrolledwindow concede touch handling to the contained
 child if a second touch is received, but if scrolling has started already,
 the captured button event will be outdated and at the wrong coordinates,
 so further touches while scrolling is ongoing are silently ignored.

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Ticket URL: <http://bugs.sugarlabs.org/ticket/4060#comment:2>
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