[Bugs] #328 UNSP: no feedback when you Start a journal entry that no activity can open

[SugarLabs Bugs]

#328: no feedback when you Start a journal entry that no activity can open
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    Reporter:  skierpage                  |          Owner:  tomeu                      
        Type:  defect                     |         Status:  new                        
    Priority:  Unspecified by Maintainer  |      Milestone:  Unspecified by Release Team
   Component:  journal                    |        Version:  0.82.x                     
    Severity:  Unspecified                |       Keywords:                             
Distribution:  OLPC                       |   Status_field:  Unconfimed                 
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 ''This is a copy of http://dev.laptop.org/ticket/8733 , is it OK to
 duplicate bugs in the two Tracs?''

 In Sugar 0.82.1 on staging-27 (an 8.2.1 pre-release) on an XO, I inserted
 a USB flash drive containing a .mp3 file.  In the Journal I can hover over
 the icon and a menu appears with Start; and I can click (>) for more
 details then click the [>] Start menu item. But these do nothing.

 The JournalActivity log contains
 {{{
 WARNING root: No activity can open this object, audio/mpeg.
 }}}

 I think the Journal should show some kind of warning, or better it should
 disable the Start menu item and replace its hover dropdown with a disabled
 "Start (no installed activity can open this)".

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Ticket URL: <http://dev.sugarlabs.org/ticket/328>
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