[Question] Z-order management in Wayland

[yan.wang at linux.intel.com]

Yes. I also think so. But we may need the comments of Wayland maintainer
about this design because it need change the compositor logic.

Yan Wang

> Sure. You can do this from your compositor. Weston has internal APIs known
> as "layers", and these control stacking order. To pause the previous
> application, you can stop calling the callback used from "frame". This
> might require some extra work in compositor.c to not send the callbacks if
> they're in a special "paused" layer, but it can be done.
>
>
> On Thu, Jul 31, 2014 at 10:02 AM, <yan.wang at linux.intel.com> wrote:
>
>> E.g. When we start a new application on mobile platform, previous
>> running
>> application could be hidden and paused to reduce power consuming
>> and improve response speed. If we could adjust and get z-order status,
>> we
>> could callback application to sleep. And when user restart this
>> application, we could just make this slept app waked up.
>>
>> Yan Wang
>>
>> > There is currently no way to influence the stacking order of top-level
>> > surfaces. Why do you need this?
>> > On Jul 31, 2014 9:28 AM, <yan.wang at linux.intel.com> wrote:
>> >
>> >> Hi, All,
>> >>    I found X provides raise/lower APIs to manger window Z-order. But
>> >> there
>> >> isn't related APIs in Wayland/Weston.
>> >>    May it should be one design idea of Wayland in fact or I could
>> >> achieve
>> >> this  by current Wayland protocol?
>> >>    Thanks.
>> >>
>> >> Yan Wang
>> >> _______________________________________________
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>> >>
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>>
>>
>
>
> --
>   Jasper
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