[PATCH] xdg-shell: add set_max_size request

[Mike Blumenkrantz]

Just to play devil's advocate, do we really want to start getting into size
hint type stuff? After this will be min size, then step size, then aspect,
...

On Mon, Apr 4, 2016 at 5:14 AM Olivier Fourdan <ofourdan at redhat.com> wrote:

> Some application may wish to restrict their window in size, but
> xdg-shell has no mecanism for the client to advertise such a maximimum
> size.
>
> As a result, the compositor may try to maximize or fullscreen a window
> while the client would not allow for the requested size.
>
> Add a new request "set_max_size" to xdg-shell so that the client can
> tell the compositor which would be its largest acceptable size, so that
> the compositor can decide if maximize or fullscreen makes sense, draw
> an accurate animation, etc.
>
> Signed-off-by: Olivier Fourdan <ofourdan at redhat.com>
> Bugzilla: https://bugzilla.gnome.org/show_bug.cgi?id=764413
> ---
>  unstable/xdg-shell/xdg-shell-unstable-v5.xml | 20 ++++++++++++++++++++
>  1 file changed, 20 insertions(+)
>
> diff --git a/unstable/xdg-shell/xdg-shell-unstable-v5.xml
> b/unstable/xdg-shell/xdg-shell-unstable-v5.xml
> index 542491f..e9e0f1d 100644
> --- a/unstable/xdg-shell/xdg-shell-unstable-v5.xml
> +++ b/unstable/xdg-shell/xdg-shell-unstable-v5.xml
> @@ -462,6 +462,26 @@
>        <arg name="height" type="int"/>
>      </request>
>
> +    <request name="set_max_size">
> +      <description summary="set the window maximum size">
> +        The client can set a maximum size to tell the compositor what
> would
> +        be the largest acceptable size of a surface.
> +
> +        The compositor can use this information to allow or disallow the
> +        maximized or fullscreen state depending on the actual output size
> +        for example, or draw a more accurate animation when transitionning
> +        states.
> +
> +        If never set, the size is not limited by the client.
> +
> +        A value of zero for either width, height or both means that the
> +        size is not limited for the given dimension.
> +      </description>
> +      <arg name="width" type="int"/>
> +      <arg name="height" type="int"/>
> +    </request>
> +
> +
>      <request name="set_maximized">
>        <description summary="maximize the window">
>          Maximize the surface.
> --
> 2.5.5
>
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