[Bug 43165] New: Desktop "taskbar" listens to mouse input even when applications (should) have exclusive access

https://bugs.winehq.org/show_bug.cgi?id=43165

Bug ID: 43165
           Summary: Desktop "taskbar" listens to mouse input even when
                    applications (should) have exclusive access
           Product: Wine
           Version: 2.9
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

I've been having issues with the taskbar (in the virtual desktop) while playing
Wolfenstein TNO/TOB, but this likely applies to other games that read mouse
input in a similar fashion to idTech.

Essentially, if the mouse is flicked before the game (or whichever input system
it uses) can return the cursor to the center of the window and it reaches the
bottom corner of the screen, the taskbar will be shown (and cannot be
re-hidden), and the user can unintentionally interact with the start button or
application kickers (and their context menu). I have unintentionally minimized
fullscreen applications multiple times due to this issue.

Honestly, this bug could probably be split across application input and the
shell, since it seems to be primarily caused by the applications input system,
and the taskbar still accepting input when a window above it should have
received it.