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RE: [css-grid] Capping the size of grids?

From: Rossen Atanassov <Rossen.Atanassov@microsoft.com>
Date: Mon, 12 Jan 2015 20:16:12 +0000
To: fantasai <fantasai.lists@inkedblade.net>, Sergio Villar Senin <svillar@igalia.com>, "www-style@w3.org" <www-style@w3.org>
Message-ID: <BY2PR03MB192D824193C5D65F97C13389B430@BY2PR03MB192.namprd03.prod.outlook.com>
> -----Original Message-----
> From: fantasai [mailto:fantasai.lists@inkedblade.net]
> Sent: Thursday, January 8, 2015 3:28 PM
>    # Since memory is not infinite, UAs may clamp the the possible size
>    # of the grid to within a UA-defined limit, dropping all lines
>    # outside that limit. If a grid item spans outside this limit, its
>    # span must be clamped to the last line of the limited grid. If a
>    # grid item is placed outside this limit, its span must be truncated
>    # to 1 and the item repositioned into the last grid track on that
>    # side of the grid.

The current wording sounds good. I would like to see a simple formula illustrating this error handling in terms of position and size. 

Assume grid line allowed bounds are A to N.
A grid item is specified as start-line : M and span : K

Position of the start edge of a grid item is computed as max(min(M, N-1), A)
Spanning is ignored and clamped to 1.

> Another option would be, if a repeat() function were involved, to clamp the
> number of repetitions rather than clamping the resulting explicit grid. Imho
> this isn't worth the additional complexity, but I'm open to other opinions.

Simple error handling is always better than clever one - I agree with you on this one.

Received on Monday, 12 January 2015 20:16:44 UTC

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