On Fri, Jul 26, 2024 at 5:04 PM Rick Byers <rby...@chromium.org> wrote:

>
>
> On Fri, Jul 26, 2024 at 7:37 AM Yoav Weiss (@Shopify) <
> yoavwe...@chromium.org> wrote:
>
>>
>>
>> On Wed, Jul 17, 2024 at 4:25 PM Mustaq Ahmed <mus...@chromium.org> wrote:
>>
>>> Contact emailsmus...@chromium.org
>>>
>>> Specification
>>> https://w3c.github.io/pointerevents/#populating-and-maintaining-the-coalesced-and-predicted-events-lists
>>>
>>> Summary
>>>
>>> For untrusted (i.e. JS constructed) PointerEvents, the events returned
>>> by PointerEvent.getCoalescedEvents() and PointerEvent.getPredictedEvents()
>>> will maintain their original targets and offsetX/Y coordinates, instead of
>>> behaving like trusted events where these fields are affected by the parent
>>> (container) event.
>>>
>>>
>>> Blink componentBlink>Input
>>> <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EInput>
>>>
>>> TAG reviewNone
>>>
>>> TAG review statusNot applicable
>>>
>>> Risks
>>>
>>>
>>> Interoperability and Compatibility
>>>
>>> None
>>>
>>
>> Can you expand on that? Isn't something that developers can somehow rely
>> on?
>>
>
> Maybe in theory, but coalesced/predicted points are so niche, combined
> with constructed events, it seems really unlikely to me that anyone would
> notice.
>

I could be missing something but the usecounters for coalesced
<https://chromestatus.com/metrics/feature/timeline/popularity/4859> don't
seem that niche (predicted
<https://chromestatus.com/metrics/feature/timeline/popularity/2971> is
indeed tiny).

This sounds like a tiny bug fix to me, arguably not even worthy of a PSA
> (but thanks for the extra diligence Mustaq!). Constructed events are
> supposed to just be however they were constructed. Of course we can always
> be surprised by even tiny-seeming bug-fixes...
>
>
>>>
>>> *Gecko*: Shipped/Shipping (
>>> https://bugzilla.mozilla.org/show_bug.cgi?id=1750994)
>>>
>>> *WebKit*: No signal
>>>
>>
>> Would this take us further away from WebKit interop? What's the current
>> state of their implementation?
>>
>
> getCoalescedPoints and getPredictedPoints aren't implemented by WebKit at
> all
>
>
>>
>>
>>>
>>> *Web developers*: No signals
>>>
>>> *Other signals*:
>>>
>>> WebView application risks
>>>
>>> Does this intent deprecate or change behavior of existing APIs, such
>>> that it has potentially high risk for Android WebView-based applications?
>>>
>>> None
>>>
>>>
>>> Debuggability
>>>
>>> None
>>>
>>>
>>> Will this feature be supported on all six Blink platforms (Windows, Mac,
>>> Linux, ChromeOS, Android, and Android WebView)?Yes
>>>
>>> Is this feature fully tested by web-platform-tests
>>> <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>
>>> ?Yes
>>>
>>>
>>> https://wpt.fyi/results/pointerevents/pointerevent_constructor.https.html?label=experimental&label=master&aligned
>>>
>>>
>>> Flag name on chrome://flagsNone
>>>
>>> Finch feature nameNone
>>>
>>> Non-finch justificationNone
>>>
>>> Requires code in //chrome?False
>>>
>>> Tracking bughttps://issues.chromium.org/353538500
>>>
>>> Estimated milestones
>>> Shipping on desktop 128
>>> Shipping on Android 128
>>> Shipping on WebView 128
>>>
>>> Anticipated spec changes
>>>
>>> Open questions about a feature may be a source of future web compat or
>>> interop issues. Please list open issues (e.g. links to known github issues
>>> in the project for the feature specification) whose resolution may
>>> introduce web compat/interop risk (e.g., changing to naming or structure of
>>> the API in a non-backward-compatible way).
>>> None
>>>
>>> Link to entry on the Chrome Platform Status
>>> https://chromestatus.com/feature/5106728480538624?gate=5128518594461696
>>>
>>> This intent message was generated by Chrome Platform Status
>>> <https://chromestatus.com/>.
>>>
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>

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