Re: [PageVisibility] ALT+TAB behaviour

The spec sheet for the Page Visibility API is also missing a definition for
a "visible" and "not visible" page. There's lots of ways in which de OS can
take over the visibility or focus of a page, for eg: screensaver, win+L
(lock screen), ALT+TAB to switch to a different program/window, clicking in
a different program in the taskbar/dock, and so on.

I think the "blur" and "focus" events on window/document are triggered as
expected, or at least the behaviour of those events seems better
implemented than the Page Visibility API.

Anyway, thanks for the reply.


Andrés Bolocco

On Thu, Mar 12, 2015 at 11:39 AM, Todd Reifsteck <toddreif@microsoft.com>
wrote:

>  From my perspective, you are observing bugs in each browser’s
> implementation of page visibility. We are tracking a bug in Internet
> Explorer backlog for this issue.
>
>
>
> *From:* Ando Ando [mailto:agbb.cg@gmail.com]
> *Sent:* Wednesday, March 11, 2015 11:21 AM
> *To:* public-web-perf@w3.org
> *Subject:* [PageVisibility] ALT+TAB behaviour
>
>
>
> hi, i need some help with this issue i posted in stackoverflow:
> https://stackoverflow.com/questions/28993157/visibilitychange-event-is-not-triggered-when-switching-program-window-with-altt
>
>
>
> basically, i can reproduce in windows/osx in several browsers.
>
>
>
> the thing is the event triggers as expected when i minimize/restore the
> browser window, or if i switch between tabs inside the browser. but it does
> not trigger if i ALT+TAB to a different program, or if I click in a
> different program in the taskbar, or even if i click the windows key to
> open the start menu, which covers the whole screen.
>
>
>
> is this part of the spec?
>
>
>
> please help me, any information will be appreciated.
>
>
>
>
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> thanks,
>
>
>
>
>
> Andres Bolocco
>