I'm incredibly excited about this feature. Thanks for driving it in Chromium, Ethan.
Regarding the templates, it's also not clear to me that TAG review is optional in this case. At a minimum, you should be filing a request for review with a heavy suggestion that it should be treated as an FYI. It'll be upt to the TAG to decide how to dispose of that review, but we trust them to inform us of risks to platform coherence, so it'll be good to get their eyes on it regardless. /cc Rossen On Thu, Jan 20, 2022 at 9:07 PM 'Ethan Jimenez' via blink-dev < blink-dev@chromium.org> wrote: > Thanks for the response Mike! > > > > I edited the “Debuggability” section below and will update the Chrome > status entry soon. > > > > Best regards, > > Ethan > > > > *From:* Mike Taylor <miketa...@chromium.org> > *Sent:* Thursday, January 20, 2022 1:03 PM > *To:* Ethan Jimenez <etha...@microsoft.com> > *Cc:* blink-dev@chromium.org; Philip Jägenstedt <foo...@chromium.org>; > Mathias Bynens <math...@chromium.org> > *Subject:* Re: [EXTERNAL] Re: [blink-dev] Intent to Prototype: CSS Subgrid > > > > (I'm not Mathias, but...) > > > > You can just respond to this thread with the debug info, and update the > Chromestatus entry as well - thanks! > > > > On 1/20/22 3:57 PM, 'Ethan Jimenez' via blink-dev wrote: > > Hi everyone! > > > > Philip, thanks for the encouragement, I’m super excited to deliver subgrid > knowing that it’s going to make so many devs happy. > > > > @Mathias Bynens <math...@chromium.org> quick question, should I re-send > the intent to prototype or just edit it here? > > > > Thanks in advance, > > Ethan > > > > *From:* Philip Jägenstedt <foo...@chromium.org> <foo...@chromium.org> > *Sent:* Wednesday, January 19, 2022 9:03 AM > *To:* Mathias Bynens <math...@chromium.org> <math...@chromium.org> > *Cc:* Ethan Jimenez <etha...@microsoft.com> <etha...@microsoft.com>; > blink-dev@chromium.org > *Subject:* [EXTERNAL] Re: [blink-dev] Intent to Prototype: CSS Subgrid > > > > Hi Ethan, > > > > It's great to see this Intent to Prototype. Subgrid tends to come up as > important in web developer surveys, the latest being State of CSS 2021: > > > https://2021.stateofcss.com/en-US/opinions/#browser_interoperability_features > <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2F2021.stateofcss.com%2Fen-US%2Fopinions%2F%23browser_interoperability_features&data=04%7C01%7Cethavar%40microsoft.com%7C9e7519222986424870dd08d9dc584930%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637783094053527188%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=5ZW9RiGh14f6Z963CQMmrSaGDkuXk%2F6ewiCbfb9FILg%3D&reserved=0> > > https://2021.stateofcss.com/en-US/opinions/#currently_missing_from_css_wins > <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2F2021.stateofcss.com%2Fen-US%2Fopinions%2F%23currently_missing_from_css_wins&data=04%7C01%7Cethavar%40microsoft.com%7C9e7519222986424870dd08d9dc584930%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637783094053527188%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=OeyWxZChbGcMfKYae%2B5ngMIUGYnHP9rkbN2bPLir1dM%3D&reserved=0> > > > > It's a part of Interop 2022 > <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fweb-platform-tests%2Finterop-2022%2Fissues%2F1&data=04%7C01%7Cethavar%40microsoft.com%7C9e7519222986424870dd08d9dc584930%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637783094053527188%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=6Q%2Bs4Ur9wWNYb1tz4%2Fh%2FvReNPBfhBgxqwTkbtvK%2Fzdo%3D&reserved=0> > for this reason > > > > So I hope this all goes well :D > > > > Best regards, > > Philip > > > > On Wed, Jan 19, 2022 at 8:09 AM Mathias Bynens <math...@chromium.org> > wrote: > > The required “Debuggability” section was left empty. Please follow > https://goo.gle/devtools-checklist > <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgoo.gle%2Fdevtools-checklist&data=04%7C01%7Cethavar%40microsoft.com%7C9e7519222986424870dd08d9dc584930%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637783094053527188%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=29gH8v6568ujGZAYsKd1IGxbU5Sbk7yuQOrZr0k563o%3D&reserved=0> > and elaborate on how developers would inspect & debug this new feature. Per > the guide, we need to ensure DevTools supports basic editing of the new CSS > properties and values — which would likely work out-of-the-box anyhow. > Please elaborate. > > > > On Tue, Jan 18, 2022 at 6:42 PM 'Ethan Jimenez' via blink-dev < > blink-dev@chromium.org> wrote: > > *Contact emails* > > etha...@microsoft.com > > *Explainer* > > None > > *Specification* > > https://drafts.csswg.org/css-grid-2 > <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdrafts.csswg.org%2Fcss-grid-2&data=04%7C01%7Cethavar%40microsoft.com%7C9e7519222986424870dd08d9dc584930%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637783094053527188%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=F523wuextylfZjaDFDk6Pbx5Q%2FwzFOSifH2S1Xu413o%3D&reserved=0> > > *Design docs* > > https://docs.google.com/document/d/1cpsCmzdDlXUKtMxOUKIoJFyLH54mLVhZnam_z0PriO0/edit?usp=sharing > <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdocs.google.com%2Fdocument%2Fd%2F1cpsCmzdDlXUKtMxOUKIoJFyLH54mLVhZnam_z0PriO0%2Fedit%3Fusp%3Dsharing&data=04%7C01%7Cethavar%40microsoft.com%7C9e7519222986424870dd08d9dc584930%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637783094053527188%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=LA%2FdzSHPO3VjGrJ2oIRFiyi6xTeL1loia6ZEwweCg5k%3D&reserved=0> > > *Summary* > > Implements the CSS Grid Layout Module Level 2 specification, which > introduces the concept of a "subgrid" to nested grid containers. > > *Blink component* > > Blink>CSS > <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbugs.chromium.org%2Fp%2Fchromium%2Fissues%2Flist%3Fq%3Dcomponent%3ABlink%253ECSS&data=04%7C01%7Cethavar%40microsoft.com%7C9e7519222986424870dd08d9dc584930%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637783094053527188%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=ObM5H4z1VAU2bqUyazgMi%2FnBCFvVXCg2ERcvf4OhrOU%3D&reserved=0> > > *Motivation* > > The problem CSS Subgrid solves is inheritance within nested grid > containers: only direct children of a grid container are aware of its > parent's grid properties, e.g., the size of its tracks, the names of each > grid line. Whenever web authors work with a grid spanning some area within > another grid, the children of the innermost grid are unaware of the > outermost grid structure, which could potentially be a disadvantage if > authors want those items to be aligned to other descendants of the > outermost grid. A "subgrid" is a nested grid container whose row and column > definitions are deferred to its parent; with such concept in mind, the > problem above is mitigated by inheriting the grid properties and alignment > from the spanned grid area in its parent grid. > > *Initial public proposal* > > > *Search tags* > > subgrid > <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fchromestatus.com%2Ffeatures%23tags%3Asubgrid&data=04%7C01%7Cethavar%40microsoft.com%7C9e7519222986424870dd08d9dc584930%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637783094053527188%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=WreG7vJBE92ALl2h9DI9lOSRKB9z7FkBi1ERb1gnTB4%3D&reserved=0> > , css-grid-2 > <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fchromestatus.com%2Ffeatures%23tags%3Acss-grid-2&data=04%7C01%7Cethavar%40microsoft.com%7C9e7519222986424870dd08d9dc584930%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637783094053527188%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=VQ54JWrnnQHfH2yUAfNI4Fne%2FbIdbx5yUSmWheDsk74%3D&reserved=0> > , css > <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fchromestatus.com%2Ffeatures%23tags%3Acss&data=04%7C01%7Cethavar%40microsoft.com%7C9e7519222986424870dd08d9dc584930%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637783094053527188%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=mULYp8mSrHLHYSidVoTCLGgGkHqcIKDf59cQxRdXNgc%3D&reserved=0> > > *TAG review* > > > *TAG review status* > > Not applicable > > *Risks* > > *Interoperability and Compatibility* > > This is a well-defined specification from the W3C, so we would be > addressing some interoperability gaps instead of causing them. > > *Gecko*: Shipped/Shipping > > *WebKit*: Positive > > *Web developers*: Strongly positive > > *Other signals*: > > *Debuggability* > > This feature is an extension of the capabilities of the CSS Grid Layout > Module, no new properties will be introduced, but a new value “subgrid” > will be introduced and properly rolled into the DevTools repository. > Besides some work required to correctly compute the resolved value of > subgrid definitions for “grid-template-columns” and “grid-template-rows”, > no additional work is required to view/edit the style of a subgrid > container. > > *Is this feature fully tested by **web-platform-tests* > <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fchromium.googlesource.com%2Fchromium%2Fsrc%2F%2B%2Fmaster%2Fdocs%2Ftesting%2Fweb_platform_tests.md&data=04%7C01%7Cethavar%40microsoft.com%7C9e7519222986424870dd08d9dc584930%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637783094053578086%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=AlnAQ6tB9oxd0rSejATBMAY4Ox%2Fu1a1l7ZlhZ3cO%2BSk%3D&reserved=0> > *?* > > Yes > > *Flag name* > > > > *Requires code in //chrome?* > > False > > *Tracking bug* > > https://crbug.com/618969 > <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcrbug.com%2F618969&data=04%7C01%7Cethavar%40microsoft.com%7C9e7519222986424870dd08d9dc584930%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637783094053578086%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=SD6d601zjMciAoqQRNsiA6N%2B6n6kNzCWMiSQCpCDYJg%3D&reserved=0> > > *Estimated milestones* > > No milestones specified > > *Link to entry on the Chrome Platform Status* > > https://chromestatus.com/feature/5663795354533888 > <https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fchromestatus.com%2Ffeature%2F5663795354533888&data=04%7C01%7Cethavar%40microsoft.com%7C9e7519222986424870dd08d9dc584930%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637783094053588027%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=OUKYo2%2Bdd49WxFWY%2FX9deDakPdSlsgaaQ%2FDUL3pjSKI%3D&reserved=0> > > This intent message was generated by Chrome Platform Status > 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