On Tue, Oct 11, 2022 at 1:37 AM TAMURA, Kent <tk...@chromium.org> wrote:
> LGTM1. > Two other browsers already shipped this. No doubt to proceed this. > > On Sat, Oct 8, 2022 at 4:15 AM Ian Kilpatrick <ikilpatr...@chromium.org> > wrote: > >> Contact emailsikilpatr...@chromium.org >> >> ExplainerNone >> >> Specificationhttps://drafts.csswg.org/css-align-3/#baseline-rules >> >> Summary >> >> This feature allows developers to align items within either flex or grid >> layout by their last baseline, instead of their first. This is done via the >> following properties: align-items: last baseline; /* flex/grid container */ >> justify-items: last baseline; /* grid container */ align-self: last >> baseline; /* flex/grid item */ justify-self: last baseline; /* grid item */ >> >> >> Blink componentBlink>Layout >> <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3ELayout> >> >> TAG reviewNone - I don't believe CSS Align 3 ever went through Tag >> Review. However I'm happy to file one and cc/ the specification editors. >> >> TAG review statusNot applicable >> >> Risks >> >> >> Interoperability and Compatibility >> >> >> >> *Gecko*: Shipped/Shipping (note - relatively basic support) >> >> *WebKit*: Shipped/Shipping "It's complicated". WebKit currently parses >> "align-items: last baseline" however doesn't support it currently in layout >> (for Stable versions of the browser). >> https://caniuse.com/?search=last%20baseline >> <https://caniuse.com/?search=last+baseline> This is currently changing >> however with recent commits by WebKit implementing the "last baseline" >> behaviour. E.g. https://bugs.webkit.org/show_bug.cgi?id=245792 >> >> *Web developers*: No signals >> >> *Other signals*: >> >> Activation >> >> This feature will likely be difficult to use initially for web developers >> for a few reasons. Support and implementation status is patchy. While >> adding tests for this feature... >> https://wpt.fyi/results/css?label=master&label=experimental&aligned&view=subtest&q=flex-align-baseline%20or%20grid-align-baseline%20or%20grid-justify-baseline >> <https://wpt.fyi/results/css?label=master&label=experimental&aligned=&view=subtest&q=flex-align-baseline+or+grid-align-baseline+or+grid-justify-baseline> >> ...existing implementations typically only supported relatively simple >> cases well. This primarily was because various specifications which this >> feature interacts with didn't specify what the last baseline of various >> boxes should be. Additionally "@supports(align-items: last baseline)" will >> return true for many versions of browsers that don't have any (or partial) >> layout support for this feature. Web developers may rely on UA versions >> and/or javascript to check actual support. >> > This is not great.. Any ways in which we can improve the story? e.g. can we push for better WPT coverage? Have this feature be a part of Interop 23? Rename the feature into something that can be reliably detected? Something else? >> >> 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? >> >> >> >> Debuggability >> >> Basic CSS property debugging 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 >> >> https://wpt.fyi/results/css?label=master&label=experimental&aligned&view=subtest&q=flex-align-baseline%20or%20grid-align-baseline%20or%20grid-justify-baseline >> <https://wpt.fyi/results/css?label=master&label=experimental&aligned=&view=subtest&q=flex-align-baseline+or+grid-align-baseline+or+grid-justify-baseline> >> >> Flag name--enable-experimental-web-platform-features or >> --enable-blink-features=CSSLastBaseline >> >> Requires code in //chrome?False >> >> Tracking bughttps://bugs.chromium.org/p/chromium/issues/detail?id=885175 >> >> Estimated milestones >> >> 108 or 109 >> >> Anticipated spec changes >> >> We filed multiple issues related to this feature - primarily for all the >> different types of layout algorithms how to determine their last baseline >> was underspecified. >> >> Scroll container - https://github.com/w3c/csswg-drafts/issues/7660 >> >> Flexbox - https://github.com/w3c/csswg-drafts/issues/7641 >> >> Multicol - https://github.com/w3c/csswg-drafts/issues/7639 >> >> Tables - https://github.com/w3c/csswg-drafts/issues/7655 >> >> Fieldset - https://github.com/w3c/csswg-drafts/issues/7656 >> >> (and more). >> >> All of these issues have been resolved, and added tests. >> >> Link to entry on the Chrome Platform Status >> https://chromestatus.com/feature/5093352798683136 >> >> Links to previous Intent discussionsIntent to prototype: >> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAJL3UpT5eVmfB6e-adc8exG1ouse25C_0A_2tn3fEVTwh-SetQ%40mail.gmail.com >> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/cajl3upt5evmfb6e-adc8exg1ouse25c_0a_2tn3fevtwh-s...@mail.gmail.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/CAJL3UpRb9dPstEirAv6pqspLgyab9%2B6bonCEzMrDNumkVH7S0g%40mail.gmail.com >> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAJL3UpRb9dPstEirAv6pqspLgyab9%2B6bonCEzMrDNumkVH7S0g%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> > > > -- > TAMURA Kent > Software Engineer, Google > > > -- > 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/CAGH7WqFn76swgKd%3DguZJdXr656Ox5ZOG1SQwDB%2B877L9G08JRw%40mail.gmail.com > <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAGH7WqFn76swgKd%3DguZJdXr656Ox5ZOG1SQwDB%2B877L9G08JRw%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- 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/CAL5BFfVo7bM0GHGuvcwcCNuuAbE0%3DH6tipmcHzsqPybCXFtsKg%40mail.gmail.com.
