On Wed, Feb 5, 2025 at 4:11 PM Mustaq Ahmed <mus...@chromium.org> wrote:

> Contact emailsmus...@chromium.org
>
> Explainerhttps://w3c.github.io/pointerevents/#event-dispatch
>
> Specificationhttps://w3c.github.io/pointerevents/#event-dispatch
>
> Summary
>
> If a pointer is captured while the `pointerup` event is being dispatched,
> the `click` event will be dispatched to the captured target instead of the
> nearest common ancestor of `pointerdown` and `pointerup` events as per the
> UI Event spec. For uncaptured pointers, the `click` target remains
> unchanged.
>
>
> Blink componentBlink>Input
> <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EInput%22>
>
> TAG reviewNone
>
> TAG review statusNot applicable
>
> Risks
>
>
> Interoperability and Compatibility
>
> Interop risk: No risk at all because the major browsers behaved
> differently for years (see
> https://github.com/w3c/pointerevents/issues/356#issuecomment-811814819).
> Compat risk: There is a slight risk that the click target change would be
> noticed for a very narrow case of a slider-like UI element that captures
> the pointer yet expects a *container* element to respond to a click
> differently from how the slider element itself responds to the same click.
> For a drag action that starts on the slider and ends outside the slider,
> this feature would cause the click event to be dispatched to the slider
> then bubble up to the container (vs being dispatched to the container
> element directly).
>

Have we tried to quantify the compat risk here?
How often do we expect developers to capture the "wrong" element from their
perspective?


>
>
> *Gecko*: Positive (
> https://github.com/w3c/pointerevents/issues/356#issuecomment-1596196064)
>
> *WebKit*: No signal
>
> *Web developers*: Positive (
> https://github.com/w3c/pointerevents/issues/356#issuecomment-1591894867)
>
> *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?label=master&label=experimental&aligned&q=pointerevents%2Fpointerevent_click_during_capture.html
>
>
> Flag name on about://flagsNone
>
> Finch feature nameClickToCapturedPointer
>
> Requires code in //chrome?False
>
> Tracking bughttps://crbug.com/40851596
>
> Sample links
> https://codepen.io/mustaqahmed/full/YzawKWW
>
> Estimated milestones
> Shipping on desktop 135
> Shipping on Android 135
> Shipping on WebView 135
>
> 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/5143357002874880?gate=5069716701577216
>
> This intent message was generated by Chrome Platform Status
> <https://chromestatus.com/>.
>
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> .
>

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