On 2/7/25 8:19 AM, Rune Lillesveen wrote:
Contact emails
futh...@chromium.org
Explainer
None
Specification
https://drafts.csswg.org/css-overflow-3/#overflow-control
Summary
The overflow-inline and overflow-block CSS properties allow setting
overflow in inline and block direction relative to the writing-mode.
In a horizontal writing-mode overflow-inline maps to overflow-x, while
in a vertical writing-mode it maps to overflow-y.
Blink component
Blink>CSS
<https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3ECSS%22>
TAG review
None
TAG review status
Not applicable
Risks
Interoperability and Compatibility
The relevant properties overflow-block and overflow-inline are part of
Interop 2025. Firefox already ships and It's highly likely that Safari
also will ship this year.
/Gecko/: Shipped/Shipping
/WebKit/: Positive Accepted as part of interop 2025
2 years ago Apple indicated that they would prefer official position
requests for anything related to Interop (see
https://groups.google.com/a/chromium.org/g/blink-dev/c/HxqAcgnTs8o/m/I_Fx6FoRBQAJ).
Until they've told us otherwise, can we do the same here?
/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
Will be possible to inspect and change via devtools like any other
property. In particular the existing overflow properties.
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.live/css/css-overflow/inheritance.html
https://wpt.live/css/css-overflow/logical-overflow-001.html
https://wpt.live/css/css-overflow/parsing/overflow-computed.html
https://wpt.live/css/css-overflow/parsing/overflow-invalid.html
https://wpt.live/css/css-overflow/parsing/overflow-valid.html
Flag name on about://flags
--enable-blink-features=CSSLogicalOverflow
Finch feature name
CSSLogicalOverflow
Requires code in //chrome?
False
Tracking bug
https://crbug.com/41489999
Estimated milestones
Shipping on desktop 135
DevTrial on desktop 77
Shipping on Android 135
DevTrial on Android 77
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/4728308937523200?gate=5083464346632192
This intent message was generated by Chrome Platform Status
<https://chromestatus.com/>.
--
Rune Lillesveen
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