[Pidgin] #2111: Handle Left and Right arrow keys on Buddy List

[Pidgin]

#2111: Handle Left and Right arrow keys on Buddy List
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 Reporter:  fmoo                                         |       Type:  enhancement
   Status:  new                                          |   Priority:  minor      
Component:  pidgin (gtk)                                 |    Version:  2.0.2      
 Keywords:  treeview, buddy list, keyboard, left, right  |    Pending:  0          
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 When the buddy list (treeview) has focus, pressing left/right should have
 the following functionality:

  * If a 'Collapsed group' is selected
    * Left should do nothing
    * Right should expand the group.
  * If an 'Expanded group' is selected
    * Left should collapse the group
    * Right should select the first item inside the group (if one is
 present)
  * If a 'Contact' is selected
    * Left should select the Group node
    * right should do nothing(*)
  * If an 'Expanded contact' is selected
    * Left should collapse the contact
    * Right should select the first buddy inside the contact
  * If a 'Buddy (sub-contact)' is selected
    * Left should select the Contact
    * Right should do nothing.

 (*) - Making this expand the contact might be really nice

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Ticket URL: <http://developer.pidgin.im/ticket/2111>
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