On Wed, Nov 1, 2023 at 4:26 AM Yoav Weiss <[email protected]> wrote:

>
>
> On Tue, Oct 31, 2023 at 1:37 AM Stephen Chenney <[email protected]>
> wrote:
>
>> The CSS Spelling and Grammar feature has been active behind experimental
>> web platform features since M89! There are no open bugs. I would like to
>> turn it on at last for M120.
>>
>> Contact [email protected], [email protected]
>>
>> Explainer
>> https://drafts.csswg.org/css-pseudo-4/#selectordef-spelling-error
>> https://drafts.csswg.org/css-pseudo-4/#selectordef-grammar-error
>>
>> https://drafts.csswg.org/css-text-decor-4/#valdef-text-decoration-line-spelling-error
>>
>> https://drafts.csswg.org/css-text-decor-4/#valdef-text-decoration-line-grammar-error
>>
>> Specification
>> https://drafts.csswg.org/css-pseudo-4/#selectordef-spelling-error
>>
>> Summary
>>
>> CSS highlight pseudo-elements for styling text that the UA has flagged as
>> misspelled or grammatically incorrect, and line decorations exposing the
>> UA’s default decorations for spelling and grammar errors. These features
>> allow authors to choose more legible colors for the default spelling and
>> grammar errors, highlight misspelled words with background colors or other
>> decorations, and implement custom spell checking with almost-native
>> appearance.
>>
>>
>>
>>
>> Blink componentBlink>CSS
>> <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3ECSS>
>>
>> Search tagsspelling-error
>> <https://chromestatus.com/features#tags:spelling-error>, grammar-error
>> <https://chromestatus.com/features#tags:grammar-error>, highlight pseudos
>> <https://chromestatus.com/features#tags:highlight%20pseudos>
>>
>> TAG reviewNone
>>
>
> Can you file a TAG review?
>

https://github.com/w3ctag/design-reviews/issues/913


>
>
>>
>>
>> TAG review statusNot applicable
>>
>> Risks
>>
>>
>> Interoperability and Compatibility
>>
>> https://developer.mozilla.org/en-US/docs/Web/CSS/::spelling-error
>> https://developer.mozilla.org/en-US/docs/Web/CSS/::grammar-error
>>
>>
>> *Gecko*: No signal (
>> https://github.com/mozilla/standards-positions/issues/470)
>>
>> *WebKit*: In development (
>> https://lists.webkit.org/pipermail/webkit-dev/2021-January/031660.html)
>> WebKit has an old WIP patch from 2018 at https://webkit.org/b/175784 CSS
>> Working group minutes imply Safari is planning an implementation:
>> https://github.com/w3c/csswg-drafts/issues/7522
>>
>
> Can you file an official position?
>

Yes. https://github.com/WebKit/standards-positions/issues/95 Supports.


>
>
>
>>
>> *Web developers*: Positive (
>> https://dev.to/lampewebdev/css-pseudo-elements-classes-you-have-never-heard-of-30hl#the-grammarerror-and-spellingerror-pseudoelement
>> )
>>
>> *Other signals*: The spec for the text-decoration-line:
>> spelling-error/grammar-error is
>> https://drafts.csswg.org/css-text-decor-4/#text-decoration-line-property
>>
>> Ergonomics
>>
>> The new pseudo-elements depend on the new ‘text-decoration-line’ values
>> for UA stylesheet support. They are highlight pseudos, which should pose
>> minimal performance risk due to the limited set of CSS properties they
>> allow: <https://drafts.csswg.org/css-pseudo-4/#highlight-styling>
>>
>>
>> Security
>>
>> See, for example, https://github.com/w3c/csswg-drafts/issues/5731 The
>> final spec says that only a minimal set of properties is allowed, and those
>> cannot load resources or otherwise expose timing attacks that inform of a
>> user's dictionary. The reported styles (to JS, to DevTools) do not depend
>> on whether or not the style is currently applied, so do not reveal anything
>> about the state of the styled text.
>>
>>
>> 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
>>
>> Devtools support is the same as ::selection, ::target-text, and
>> ::highlight(), which appear in the Styles panel. Properties inherited from
>> ancestor spelling and grammar styles are also shown in the Styles panel.
>>
>>
>> Will this feature be supported on all six Blink platforms (Windows, Mac,
>> Linux, Chrome OS, Android, and Android WebView)?Yes
>>
>> There are no platform specific aspects to the feature and it is useful on
>> all platforms.
>>
>>
>> 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/css/css-pseudo?label=experimental&label=master&aligned
>> Internal web tests have greater coverage because there is no way in WPT to
>> activate a spelling or grammar error.
>> https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/web_tests/paint/markers/
>> https://source.chromium.org/search?q=spelling-error&ss=chromium%2Fchromium%2Fsrc
>> https://source.chromium.org/search?q=grammar-error&ss=chromium%2Fchromium%2Fsrc
>>
>>
>> Flag name on chrome://flagsexperimental-web-platform-features
>>
>> Finch feature nameCSSSpellingGrammarErrors
>>
>> Non-finch justification
>>
>> The feature is new and poses no performance or crash risk. It has been in
>> experimental for a long time already and is extensively tested.
>>
>>
>> Requires code in //chrome?False
>>
>> Tracking bughttps://crbug.com/1163437
>>
>> Sample links
>> https://bucket.daz.cat/work/igalia/0/1.html
>>
>> Estimated milestones
>> DevTrial on desktop 89
>> DevTrial on Android 89
>>
>> Anticipated spec changes
>>
>> The spec has stabilized and there is only one outstanding issue seeking
>> clarification that is not expected to result in a change in behavior.
>>
>> Link to entry on the Chrome Platform Status
>> https://chromestatus.com/feature/4811776539492352
>>
>> Links to previous Intent discussionsIntent to prototype:
>> https://groups.google.com/a/chromium.org/g/blink-dev/c/8UEcRJViPEU
>>
>> This intent message was generated by Chrome Platform Status
>> <https://chromestatus.com/>.
>>
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>> .
>>
>

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