Web-Facing Change PSA: Coalesced/predicted events in untrusted PointerEvents will retain original targets

[Mustaq Ahmed]

Contact emails

mus...@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 component

Blink>Input

TAG review

None

TAG review status

Not applicable

Risks

Interoperability and Compatibility

None

Gecko: Shipped/Shipping (https://bugzilla.mozilla.org/show_bug.cgi?id=1750994)

WebKit: No signal

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?

Yes

https://wpt.fyi/results/pointerevents/pointerevent_constructor.https.html?label=experimental&label=master&aligned

Flag name on chrome://flags

None

Finch feature name

None

Non-finch justification

None

Requires code in //chrome?

False

Tracking bug

https://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.