[whatwg] Processing the zoom level - MS extensions to window.screen
Charles Pritchard
chuck at jumis.com
Wed Nov 24 01:16:31 PST 2010
On 11/24/2010 1:12 AM, Robert O'Callahan wrote:
> On Wed, Nov 24, 2010 at 9:09 PM, Charles Pritchard <chuck at jumis.com
> <mailto:chuck at jumis.com>> wrote:
>
> On 11/21/2010 4:12 PM, Robert O'Callahan wrote:
>> On Sun, Nov 21, 2010 at 9:59 AM, Charles Pritchard
>> <chuck at jumis.com <mailto:chuck at jumis.com>> wrote:
>>
>> Rob: Mobile deployments using dpiPixelRatio (as has been
>> adopted by Moz and Webkit) and target-DpiDensity work well on
>> the mobile, they are not hooked to zoom on the desktop,
>>
>>
>> It is in Firefox.
> I just tested in 4b7, and it's not changing dpiPixelRatio.
>
>
> Try this:
> <style>
> div { display:none; }
> @media screen and (min--moz-device-pixel-ratio: 1.5) {
> .in { display:block; }
> }
> @media screen and (max--moz-device-pixel-ratio: 0.66666666) {
> .out { display:block; }
> }
> </style>
> <div class="in">Zoomed in by a factor of at least 1.5</div>
> <div class="out">Zoomed out by a factor of at least 1.5</div>
>
> Try zooming in a lot and zooming out a lot. It works for me.
While we're at it, can we get some agreement on that CSS selector? I
can't speak for MS, but otherwise, it's a de facto standard.
That css selector is paired with the window.dpiPixelRatio variable per
the webkit proposal.
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