Contact emailsdizha...@chromium.org ExplainerNone
Specificationhttps://drafts.csswg.org/css-ui-4/#appearance-switching Summary Since only standard appearance keywords should be supported, we are removing the appearance (and -webkit-appearance) keywords that shouldn't be supported anymore: * inner-spin-button * media-slider * media-sliderthumb * media-volume-slider * media-volume-sliderthumb * push-button * searchfield-cancel-button * slider-horizontal * sliderthumb-horizontal * sliderthumb-vertical * square-button Note that value "slider-vertical" will not be removed as part of this patch it is used for allowing <input type=range> vertical. It will be removed once feature FormControlsVerticalWritingModeSupport is enabled in stable. Previously, if using any of the above keywords, a console warning will be shown, but the keyword will be recognized as a valid value. With the feature enabled, there will be no console warning. The appearance property will be ignored and set to the empty string. The use count (under WebFeature::kCSSValueAppearanceNonStandard) is at 0.005985% as of July 2023 [3]. [1] https://drafts.csswg.org/css-ui-4/#appearance-switching [2] https://github.com/w3c/csswg-drafts/issues/8506#issuecomment-1515062326 [3] https://docs.google.com/document/d/e/2PACX-1vTP-wXiSV9_dSbbs4OEH-XqP0hakmoTwmEBkEJ-EAI3vDmlXxWMdHvCYl01QqUHm7q6iw8ubK0d3xk1/pub Blink componentBlink>CSS <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3ECSS> TAG reviewNone TAG review statusNot applicable Risks Interoperability and Compatibility This feature only affects the reflection in computed style. Currently, while it is possible to set an appearance value with one of these non-standard values, it will not affect the appearance of that element. Now, if appearance is set to one of these non-standard values, the returned computed appearance value will be auto. It is unlikely websites depend on this information: this deprecation should be web compatible. *Gecko*: Shipped/Shipping *WebKit*: No signal *Web developers*: No signals *Other signals*: Ergonomics There are no other platform APIS this will be used in tandem with and this will not make it hard for chrome to maintain good performance. Activation There should be no challenge for developers to take advantage of this feature immediately. Security N/A 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 The non-standard appearance values we are removing are already not listed in the autocomplete in DevTools. Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, Chrome OS, 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 Flag name on chrome://flagsRemoveNonStandardAppearanceValue Finch feature name Non-finch justificationNone Requires code in //chrome?False Tracking bughttps://bugs.chromium.org/p/chromium/issues/detail?id=924486 Estimated milestones Shipping on desktop 117 DevTrial on desktop 115 Shipping on Android 117 DevTrial on Android 115 Shipping on WebView 117 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/5066630972833792 Links to previous Intent discussions This intent message was generated by Chrome Platform Status <https://chromestatus.com/>. -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to blink-dev+unsubscr...@chromium.org. To view this discussion on the web visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CA%2BSS7eAE3At9QiJ-XymVFxUc7Z2%2B06xGTBOk%2B%3D7sGGNHvt5HSg%40mail.gmail.com.
