On 09/03/15 09:58, Alan Griffiths wrote: > Background: > > I've been looking at our legacy defaults for window management and came > across the handle_surface_created() method. > > This is used to set the focus to a session after a surface has been > supplied to the client but before that surface has had a frame posted. > Hence, in a lot of cases we are setting focus to a surface that is > invisible to the user. > > Both the unity downstreams (unity-system-compositor and qtmir) disable > this behaviour. USC replaces it with behaviour that waits for the first > posted frame and then sets the focus - which seems like it would make a > far better default. It isn't immediately obvious what Unity8 does, but > it doesn't use handle_surface_created().
Like USC, Unity8/QtMir will only give input focus to a surface which has posted at least one frame. -G
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