[Question] Z-order management in Wayland

[yan.wang at linux.intel.com]

Hi, Carsten,
  Thanks for your comments.
  I check efl code and I found
_ecore_wl_window_cb_xdg_surface_active/deactivate is empty.
  As your comments, we should add code into them and pop related Ecore
event out. Is it right?
  I could also find ecore_wl_window_raise() in ecore_wl_window.c. It
shouldn't be used?
  And I am not sure whether USE_XDG_SHELL macro is enabled in current
Tizen upstream.

Yan Wang

> On Thu, 31 Jul 2014 01:02:33 -0700 (PDT) yan.wang at linux.intel.com said:
>
>> 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.
>
> you do NOT want to do this by raise/lower. even doing this in x11 is
just
> WRONG. in fact a good mobile wm setup would refuse to allow this. there
is
> a
> netwm request "netwm activate". this requests the window is activated.
this MAY
> raise the window. it may switch desktop. it may de-iconify a window. it may
> also place focus on the window... unless the wm decides that this is a
bad
> idea
> right now.
>
> you do NOT want a raise/lower etc. in wayland. you want xdg shell and an
activate request. the compositor after that decides what is best to do.
>
>> 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
>> >> _______________________________________________
>> >> wayland-devel mailing list
>> >> wayland-devel at lists.freedesktop.org
>> >> http://lists.freedesktop.org/mailman/listinfo/wayland-devel
>> >>
>> > _______________________________________________
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>> >
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>
>
> --
> ------------- Codito, ergo sum - "I code, therefore I am" --------------
The Rasterman (Carsten Haitzler)    raster at rasterman.com
>
>