[Bugs] #1423 IMME: Present windows in non-active process

[Sugar Labs Bugs]

#1423: Present windows in non-active process
----------------------------+-----------------------------------------------
    Reporter:  alsroot      |          Owner:  tomeu      
        Type:  defect       |         Status:  new        
    Priority:  Immediate    |      Milestone:  0.86       
   Component:  sugar        |        Version:  0.85.x     
    Severity:  Blocker      |       Keywords:             
Distribution:  Unspecified  |   Status_field:  Unconfirmed
----------------------------+-----------------------------------------------
 For now, sugar code has several gtk.present() calls that don't work if the
 were invoked from another processes. Thats due to outdated timestamps:

 |TestCase|
 * open 1st window prcess(e.g. Browse)
 * from 2st process(e.g. shell) initiate window activating of 1st
 process(BrowseActivity.present())
 * it works fine if Browse's window hasn't gdk window but fails otherwise -
 last event in X was from 2st process, last event from 1st process was
 earlier, so calling present(thus gdk.focus()) for 1st process sends
 outdated timestamp and WM ignore present(focus) invoking

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Ticket URL: <http://bugs.sugarlabs.org/ticket/1423>
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