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

"hidden" would mean the document is not visible to the user. It'd cover
cases like when the browser window is minimized or the top level document
is in a background tab or when the document is off the screen e.g. below
the fold.
"visible" means the document can be seen by the user even if it is only
partially visible.

We can add more states e.g. we can add "offscreen" to cover the case when
the document is off the screen.

Any suggestions?

Arvind



On Sun, Aug 25, 2013 at 1:26 AM, James Robinson <jamesr@google.com> wrote:

> Do you have an exact definition of what you mean by "visible" in this
> context?
>
> - James
> 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
>>
>