Hi Daniel,

We didn't have a chance to discuss privacy issues in Gamepad Extension or
Gamepad API. We were trying to get responses for the Privacy review [1] but
without any updates yet.

Cheers,

[1] https://lists.w3.org/Archives/Public/public-privacy/2018AprJun/0030.html

--
Daosheng Mu
Software Engineer | Mozilla
d...@mozilla.com


On Mon, Feb 25, 2019 at 2:47 PM Daniel Veditz <dved...@mozilla.com> wrote:

> Neither of the words "security" or "privacy" appear in this spec (most w3
> web specs have at least a token attempt at a "Privacy and Security
> Considerations" section). At a surface glance this appears to add
> additional fingerprinting exposure. Have you talked to the privacy team
> about ways to minimize this?
>
> -Dan Veditz
>
> On Mon, Feb 25, 2019 at 11:45 AM Daosheng Mu <d...@mozilla.com> wrote:
>
>> Summary:
>> In order to support controllers which have multi touch and light bar
>> features like Sony DualShock 4. The `*multi touch*` and `*light
>> indicator*`
>> APIs for gamepad extensions are the things we must have. In
>> `*GamepadTouch*`
>> API, it would make us know touch surface's dimension and its unique id. We
>> also will have a way to know where is the place we are touching according
>> to its position and the unique id. Regarding to `*GamepadLightIndicator*`,
>> it could tell users the color of controller's light bar. The color is a
>> 8-bit size integer for defining `*red*`, `*green*`, `*blue*`, or other
>> colors to indicate the on-off light indicator is ON.
>>
>> Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1523350
>>
>> Link to standard:
>> W3C Multi touch spec proposal:
>> https://github.com/knyg/gamepad/blob/multitouch/extensions.html
>> W3C Light indicator spec proposal:
>> https://github.com/knyg/gamepad/blob/lightindicator/extensions.html
>>
>> Platform coverage: Windows, Mac OS, Linux
>>
>> Estimated or target release: Firefox 68
>>
>> Preference behind which this will be implemented:
>> "dom.gamepad.extensions.multitouch" and
>> "dom.gamepad.extensions.lightindicator"
>>
>> Do other browser engines implement this? Nope
>>
>> web-platform-tests: none exist (and I don't plan to write WPTs but we do
>> have gamepad mochitest, I will add new tests to cover these two new APIs.)
>>
>> Is this feature restricted to secure contexts? Nope
>>
>> How stable is the spec? This is a proposal from a vendor, I suppose it
>> would be some minor adjustments coming when other developers start to
>> implement it. I would suggest to make it pref'd off by default until this
>> proposal be merged to w3c's branch.
>>
>>
>> --
>> Daosheng Mu
>> Software Engineer | Mozilla
>> d...@mozilla.com
>> _______________________________________________
>> dev-platform mailing list
>> dev-platform@lists.mozilla.org
>> https://lists.mozilla.org/listinfo/dev-platform
>>
>
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