[haiku-bugs] Re: [Haiku] #5393: Duplicate screenshots acquired in case Keymap preflet is opened.

#5393: Duplicate screenshots acquired in case Keymap preflet is opened.
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   Reporter:  damoklas            |      Owner:  axeld
       Type:  bug                 |     Status:  new
   Priority:  normal              |  Milestone:  R1
  Component:  Kits/Interface Kit  |    Version:  R1/Development
 Resolution:                      |   Keywords:
 Blocked By:                      |   Blocking:
Has a Patch:  0                   |   Platform:  All
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Comment (by pulkomandy):

 There is a problem here :
  * Create a window with a view inside, the view has
 SetEventMask(B_KEYBOARD_EVENT);
  * Add a PrintToStream in the window MessageReceived or DispatchMessage
  * Unfocus the window
  * Notice it still gets ALL keyboard events

 Of course, the window will intercept some of them : screenshot, deskbar
 switcher, command Q.
 These were meant to be handled once by the focus view, now they are
 handled twice (by the focus window and the seteventmask one).

 More interesting : it's super-easy to make a keylogger and grab passwords
 and other useful info, as all of this gets (at least) in
 BWindow::DispatchMessage even when the window is not focused.

 I'm not sure the window should get these messages at all when it's not
 focused ? The Be Book doesn't seem to tell about it. Anyway, that's a
 rather critical security problem :/

-- 
Ticket URL: <http://dev.haiku-os.org/ticket/5393#comment:4>
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