- From: Oriol Brufau via GitHub <sysbot+gh@w3.org>
- Date: Thu, 31 Oct 2019 12:29:59 +0000
- To: public-css-archive@w3.org
I have been thinking that we may be able to keep leading implicit tracks in the resolved value and also ensure round-tripping. We only need to allow `grid-template-rows` and `grid-template-columns` to define explicit tracks before the grid line number 1. The current basic syntax is ``` <explicit-track-list> = [ <line-names>? <track-size> ]+ <line-names>? <line-names> = '[' <custom-ident>* ']' ``` Maybe we could change `<line-names>` to `'[' <custom-ident>* || 1? ']'`, with the constraint that this `1` can only appear once in the `<explicit-track-list>`. This would define that line name to be the number 1. Tracks before that line would belong to the explicit grid, but items wouldn't be able to use integers in `grid-row/column` to be placed in such tracks (since 0 is invalid and negative integers refer to the end). Items could still reference line names in order to be placed there. Then resolved values could preserve this `1` line name if it was specified, and otherwise it could be inserted when there are leading implicit tracks. The previous example would become ```js cs.gridTemplateRows; // "2px" gridItem.style.gridRow = "auto / 1"; gridContainer.style.gridTemplateRows = cs.gridTemplateRows; // "1px [1] 2px" gridContainer.style.gridTemplateRows = cs.gridTemplateRows; // "1px [1] 2px" ``` -- GitHub Notification of comment by Loirooriol Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/4475#issuecomment-548349785 using your GitHub account
Received on Thursday, 31 October 2019 12:30:01 UTC