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[mediaqueries] behavior of any-pointer: none #248

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upsuper opened this issue Jun 28, 2016 · 2 comments
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[mediaqueries] behavior of any-pointer: none #248

upsuper opened this issue Jun 28, 2016 · 2 comments
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@upsuper
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upsuper commented Jun 28, 2016

In the section of pointer, the spec says none is matched if

The primary input mechanism of the device does not include a pointing device.

In the section of any-pointer and any-hover, the spec says:

The any-pointer and any-hover media features are identical to the pointer and hover media features, but they correspond to the union of capabilities of all the pointing devices available to the user.

It is unclear to me in what case should any-pointer: none match? Should it match only if the device has completely no pointing device, or always match because device should always have some non-pointing input mechanism?

@fantasai
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It should only match if the device has completely no pointing device.

@tabatkins
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Every pointing device is either "coarse" or "fine". The only way you can match "none" is if there aren't any to union, like fantasai says. I can clarify that a bit, tho.

@tabatkins tabatkins added the mediaqueries-4 Current Work label Jun 28, 2016
@tabatkins tabatkins self-assigned this Jun 28, 2016
@tabatkins tabatkins removed the ready label Jun 28, 2016
@frivoal frivoal added the Testing Unnecessary Memory aid - issue doesn't require tests label Jul 3, 2020
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