- From: João Eiras <joaoe@opera.com>
- Date: Tue, 11 May 2010 12:29:54 +0200
- To: public-webapps@w3.org, www-style@w3.org
On Tue, 11 May 2010 08:47:27 +0200, Anne van Kesteren <annevk@opera.com>
wrote:
> On Mon, 10 May 2010 19:47:42 +0200, João Eiras <joaoe@opera.com> wrote:
>> Should be
>> addEventListener("mediaChanged", listener, false);
>> There is already an event model, and it would just require a new event
>> type.
>
> A generic event is not a good idea in my opinion. The more media
> features we add the more often it will be dispatched. Authors may not
> anticipate that. Furthermore, dispatching a bunch of viewport resizing
> events when the author is only interested in orientation change would be
> waste.
>
There was a misunderstanding on my part.
My proposal, using addEventListener, is only for when media mode changes,
like from screen to print.
The other proposed API calls the listeners when a specific media query
applies (which can include orientation and device width) and therefore not
being quite implementable performantly.
I would really like an event just for media change though, so we could
deprecate onbeforeprint/onafterprint and therefore get a generic event
that works for any media mode.
--
João Eiras
Core Developer, Opera Software ASA, http://www.opera.com/
Received on Tuesday, 11 May 2010 10:30:29 UTC