Re: making page visibility a property of document instead of top level browsing context

Got it. How about visibility of top level browsing context? Would we expose
document.parent.visibility across origin? Today we expose it as
document.visibility in a cross origin iframe returns that value.


On Sat, Aug 24, 2013 at 6:12 PM, Jonas Sicking <jonas@sicking.cc> wrote:

> Agreed. It seems quite possible that this won't break any existing content.
>
> / Jonas
>
> On Sat, Aug 24, 2013 at 5:55 PM, Ojan Vafai <ojan@chromium.org> wrote:
> > Ideally we wouldn't add a new property. So, we should try shipping this
> in
> > the backwards-incompatible way (i.e. changing the existing property) and
> see
> > if we can get away with it.
> >
> >
> > On Sat, Aug 24, 2013 at 5:30 PM, Arvind Jain <arvind@google.com> wrote:
> >>
> >> Is it ok to just update the spec in a non compatible way i.e. in the new
> >> version of the spec, we say visibility is at document level (which
> would be
> >> not backwards compatible). Or do we need to add a new property?
> >>
> >> Arvind
> >>
> >>
> >> On Sat, Aug 24, 2013 at 5:22 PM, Jonas Sicking <jonas@sicking.cc>
> wrote:
> >>>
> >>> We at mozilla is certainly in support of this. In fact, bz has strongly
> >>> argued that this should be the case for a very long time.
> >>>
> >>> / Jonas
> >>>
> >>> On Aug 24, 2013 2:11 PM, "Arvind Jain" <arvind@google.com> wrote:
> >>>>
> >>>>
> >>>> Hi,
> >>>> I've seen a few requests where developers would like to query for
> >>>> visibility of their IFRAME (when the iframe is in third party
> context).
> >>>>
> >>>> Today, in Page Visibility, we set document.visibilityState to "hidden"
> >>>> or "visible", but it is really the visibility of the top level
> browsing
> >>>> context that includes the given document. This information is made
> available
> >>>> to third party IFRAMEs.
> >>>>
> >>>> What do folks think of making document.visibilityState the property of
> >>>> the document itself instead of the top level browsing context? That
> way you
> >>>> can detect conditions like when the IFRAME is below the fold and
> therefore
> >>>> not visible while the top level browsing context itself is visible.
> >>>>
> >>>> Thanks,
> >>>> Arvind
> >>
> >>
> >
>