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Re: Behavior of device-pixel-ratio under zoom

From: Rune Lillesveen <rune@opera.com>
Date: Mon, 12 Nov 2012 10:21:18 +0100
To: www-style@w3.org
Message-ID: <op.wnnllsp78isf1p@id-c1005.oslo.osa>
On Mon, 12 Nov 2012 10:15:40 +0100, Robert O'Callahan  
<robert@ocallahan.org> wrote:

> I agree with David and Rune, if that wasn't already clear.
>
> On Sun, Nov 11, 2012 at 7:13 PM, Simon Fraser <smfr@me.com> wrote:
>> We (Apple) feel quite strongly that device-pixel-ratio, like  
>> window.devicePixelRatio,
>> should not change under zoom. It's answering a question about the  
>> device hardware,
>> not the current zoom state of the page.
>>
>> I think in general authors should not be able to directly affect the  
>> layout of the page
>> under different zoom levels. Zooming should shouldn't have unsurprising  
>> side effects
>> for the user.
>
> For years Firefox has supported a zoom mode that does relayout the page  
> (by changing the viewport size in CSS pixels). I believe Safari has  
> >supported something similar.
>
> I'm asking whether *that* kind of zoom should affect devicePixelRatio  
> and device-pixel-ratio.

Yes, I think so.

-- 
Rune Lillesveen
Received on Monday, 12 November 2012 09:21:44 GMT

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