- From: Kostiainen, Anssi <anssi.kostiainen@intel.com>
- Date: Wed, 28 May 2014 16:54:09 +0000
- To: W3C Device APIs WG <public-device-apis@w3.org>
On 27 May 2014, at 11:00, Kostiainen, Anssi <anssi.kostiainen@intel.com> wrote:
> On 23 May 2014, at 18:57, Frederick Hirsch <w3c@fjhirsch.com> wrote:
>
>> This is a Call for Consensus to update the Ambient Light specification [1] by removing the LightLevelEvent entirely.
>
> +1
>
> This will allow us to align the spec with the implementations and pass the interop.
As a further data point to support this, I’d like to point out that Media Queries Level 4 defines the “light-level” media feature (dim | normal | washed) [1] which nicely maps to the LightLevelEvent.
This means you can do this in CSS:
<style>
@media (light-level: washed) {
/* Styles for an exceptionally bright environment go here. */
}
</style>
And in JavaScript:
<script>
if (window.matchMedia(“(light-level: dim)").matches) {
console.log(‘The device is used in a dim environment.’);
}
</script>
This media feature nicely complements the DeviceLightEvent which provides more granularity, but overlaps with the LightLevelEvent which we plan to drop from the Ambient Light Events spec.
Thanks,
-Anssi
[1] http://dev.w3.org/csswg/mediaqueries4/#light-level
Received on Wednesday, 28 May 2014 16:55:06 UTC