[Pidgin] #10863: XMPP Room List focus problem.

[Pidgin]

#10863: XMPP Room List focus problem.
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 Reporter:  phreadom  |       Owner:
     Type:  defect    |      Status:  new
Milestone:            |   Component:  pidgin (gtk)
  Version:  2.6.4     |  Resolution:
 Keywords:            |
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Comment (by goghino):

 I found a possible solution to this bug. I explicitly set that dialog
 "Join a chat" is a parent of a "Room list" and set it as modal window. So
 when the "Enter a conference server" dialog is destroyed "Room List" stays
 on the top.
 I also set the behaviour that whenever "Join a Chat" window is destroyed,
 "Room List" is destroyed too. Otherwise it stayed open until it was
 manually destroyed. When this was repeated multiple times, multiple "Room
 List" dialogs remained opened until manually closed.
 I also enclose a patch.

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Ticket URL: <https://developer.pidgin.im/ticket/10863#comment:4>
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