Hi Mike:

Sorry for the delay due to vacation etc!  Below are my answers to your
queries.  Note that we are still asking for M103, so we will be prompt now
:)

> Does this only work for standard requestFullscreen, or will it work for
webkitRequestFullscreen as well?

This covers all forms: we are proposing changes in the core algorithm for
request-fullscreen, regardless of the JS interface used to call it.

>> Gecko: Positive (
https://github.com/mozilla/standards-positions/issues/565, also see:
https://github.com/WICG/capability-delegation/issues/10)
> I don't think these quite count as official Positive signals (but yes,
the comments from Anne are promising!). Can we ping the standards-position
issue and ask for one?

See the recent comments in the issue asking for Gecko's position, thanks.
https://github.com/mozilla/standards-positions/issues/565

>> WebKit: No signal
> Have we asked? I looked at the Payment Request, and it seems like we
didn't, but maybe I'm looking in the wrong spot. If not, can we?

I missed this with the intent for payment, sorry!  Filed a single request
to cover both payment and fullscreen capabilities:
https://lists.webkit.org/pipermail/webkit-dev/2022-May/032221.html

>> Is this feature fully tested by web-platform-tests?
>> Not yet
> Is there something missing to test this (or capability detection in
general), or is it just that you haven't written the WPTs yet?

We hadn't written a WPT at that time.  We have one under review now:
https://github.com/web-platform-tests/wpt/pull/34004

Mustaq


On Sun, May 8, 2022 at 11:07 PM Ajay Rahatekar <[email protected]>
wrote:

> +Ajay Rahatekar
>
> On Monday, April 25, 2022 at 12:29:29 PM UTC-7 [email protected] wrote:
>
>> Hi Mustaq,
>>
>> On 4/21/22 11:05 AM, Mustaq Ahmed wrote:
>>
>> Contact emails
>>
>> [email protected], [email protected]
>> Explainer
>>
>> https://github.com/WICG/capability-delegation
>> Specification
>>
>> https://wicg.github.io/capability-delegation/spec.html
>>
>> (Work in progress for fullscreen algorithm change:
>> https://github.com/WICG/capability-delegation/pull/28)
>> Design doc
>>
>>
>> https://docs.google.com/document/d/1ax54Lf2W3_TovVOj35duKTbcOlXe-nJ-KQdWiy1Ye0c
>> Summary
>>
>> This feature is based on the general delegation mechanism (
>> https://chromestatus.com/feature/5708770829139968) shipped on M100.
>>
>> Fullscreen Capability Delegation allows a Window to transfer the ability
>> to call requestFullscreen() to another Window it trusts after relinquishing
>> the transient user activation at the sender Window.
>>
>> Does this only work for standard requestFullscreen, or will it work for
>> webkitRequestFullscreen as well?
>>
>> Blink component
>>
>> Blink>Fullscreen
>> <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EFullscreen>
>> TAG review
>>
>> Covered by the review for the general delegation mechanism:
>> https://github.com/w3ctag/design-reviews/issues/655
>> TAG review status
>>
>> Covered by the approval for the general delegation mechanism:
>> https://github.com/WICG/capability-delegation/pull/23
>> Risks
>>
>> Interoperability and Compatibility risks remain unchanged from the
>> general delegation mechanism; see that intent here:
>> https://groups.google.com/a/chromium.org/g/blink-dev/c/PHT_2X7oRBE/m/gR9UiZxBAQAJ
>> External signals
>>
>> Gecko: Positive (
>> https://github.com/mozilla/standards-positions/issues/565, also see:
>> https://github.com/WICG/capability-delegation/issues/10)
>>
>> I don't think these quite count as official Positive signals (but yes,
>> the comments from Anne are promising!). Can we ping the standards-position
>> issue and ask for one?
>>
>> WebKit: No signal
>>
>> Have we asked? I looked at the Payment Request, and it seems like we
>> didn't, but maybe I'm looking in the wrong spot. If not, can we?
>>
>> Web developers: Positive (https://crbug.com/931966#c5)
>> Debuggability
>>
>> This remains unchanged from the general intent:
>> https://groups.google.com/a/chromium.org/g/blink-dev/c/PHT_2X7oRBE/m/gR9UiZxBAQAJ
>> Ongoing technical constraints
>>
>> None.
>> Will this feature be supported on all six Blink platforms (Windows, Mac,
>> Linux, Chrome OS, Android, and Android WebView)?
>>
>> Yes
>> Is this feature fully tested by web-platform-tests
>> <https://chromium.googlesource.com/chromium/src/+/master/docs/testing/web_platform_tests.md>
>> ?
>>
>> Not yet
>>
>> Is there something missing to test this (or capability detection in
>> general), or is it just that you haven't written the WPTs yet?
>>
>> Flag name
>>
>> --enable-blink-features=CapabilityDelegationFullscreenRequest
>> Requires code in //chrome?
>>
>> Yes, work in progress
>> Tracking bug
>>
>> https://crbug.com/1293083
>> Estimated milestone
>>
>> 103
>> Link to entry on the Chrome Platform Status
>>
>> https://chromestatus.com/feature/6441688242323456
>> Links to previous Intent discussions
>>
>> Intents for the general delegation mechanism:
>>
>>    -
>>
>>    I2P:
>>    
>> https://groups.google.com/a/chromium.org/g/blink-dev/c/9CeLYndESPE/m/AhEttheMBQAJ
>>    -
>>
>>    I2E (with Payment Request):
>>    
>> https://groups.google.com/a/chromium.org/g/blink-dev/c/i6pAWsjU7zg/m/UK0lGnKuAAAJ
>>
>> I2S (with Payment Request):
>> https://groups.google.com/a/chromium.org/g/blink-dev/c/PHT_2X7oRBE/m/gR9UiZxBAQAJ
>>
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>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAB0cuO63mt3wbrDHhy7ieb4yAwd0YNhmQM11Mdg3eXfhpt558g%40mail.gmail.com?utm_medium=email&utm_source=footer>
>> .
>>
>>
>>

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