On 11/17/24 11:19 AM, Mason Freed wrote:
Contact emails
mas...@chromium.org
Explainer
None
Specification
https://github.com/whatwg/html/pull/10728
Summary
This chromestatus represents the following related set of changes,
which were resolved in
https://github.com/whatwg/html/pull/9144#issuecomment-2195095228 and
landed in https://github.com/whatwg/html/pull/10728: 1. add an
imperative way to set invoker relationships between popovers:
popover.showPopover({source}) 2. invoker relationships create implicit
anchor element references.
Blink component
Blink>DOM
<https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EDOM>
TAG review
None
TAG review status
Not applicable
Risks
Interoperability and Compatibility
The addition of `showPopover({source})` poses no compat risk, since
it's a new capability. Making popover invokers into implicit anchor
elements poses an extremely-small compat risk, in the case that a
site: 1) uses popovertarget to invoke a popover 2) uses an anchor
positioning property like `position-area` or the `anchor()` function,
but critically *does not* use `position-anchor` or `anchor-name` to
actually connect those properties between elements. 3) *relies* on
there being no actual anchor positioning connection between the
popover and the invoker. While this is certainly possible, it is very
unlikely, especially given how recently anchor positioning shipped, in
only Chromium browsers.
/Gecko/: No signal
/WebKit/: No signal
Can we request signals from WebKit & Gecko (or do we already have them)?
/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)?
No
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/html/semantics/popovers/imperative-invokers.tentative.html
https://wpt.fyi/results/css/css-anchor-position/popover-implicit-anchor.tentative.html
Flag name on about://flags
PopoverAnchorRelationships
Finch feature name
PopoverAnchorRelationships
Requires code in //chrome?
False
Tracking bug
https://crbug.com/364669918
Estimated milestones
Shipping on desktop 133
Shipping on Android 133
Shipping on WebView 133
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/5120638407409664?gate=4720744823783424
Links to previous Intent discussions
Intent to Prototype:
https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAM%3DNeDhOAzR67sP_-V5DgSYoJphymauj4qjcm79mHaFBFQGtCQ%40mail.gmail.com
This intent message was generated by Chrome Platform Status
<https://chromestatus.com/>.
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