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Re: [css-flexbox] Flex Container Baselines

From: fantasai <fantasai.lists@inkedblade.net>
Date: Thu, 3 Dec 2015 17:07:57 -0500
To: www-style@w3.org
Message-ID: <5660BD3D.9060409@inkedblade.net>
On 08/31/2015 06:34 PM, fantasai wrote:
> In <https://lists.w3.org/Archives/Public/www-style/2015Jun/0085.html>
> timeless mentioned that, in the cases where there are no explicitly
> baseline-aligned items, it would make more sense to use the main-axis
> baseline of the first item that has a baseline, rather than using the
> baseline of the first item if it has one and then falling back to the
> bottom of its content box.
>
> I'm not sure this is necessary, since I'd imagine that in most cases
> if you wanted to align to the baseline of the flex container's contents,
> you'd also have requested baseline alignment of said contents.
>
> In any case, thoughts?
>
> Option A (current text):
>    1. Use shared baseline of baseline-aligned items
>    2. Use baseline of first item
>    3. Synthesize baseline from content box of first item
>       (if first item doesn't have a baseline)
>
> Option B (proposed):
>    1. Use shared baseline of baseline-aligned items
>    2. Use baseline of first item that has a base line
>    3. Synthesize baseline from content box of first item
>       (if no items in that row/column have a real baseline).
>
> I lean towards A because it means we don't have to treat synthesized
> and real baselines differently as we walk up the tree.
>
> But I can also see that it would be confusing to baseline-align to
> the bottom of a first item that's an image when the second item has
> text.
>
> Note that given A, the author can still achieve this result by
> requesting baseline alignment for the second item. But they'd have
> to do that explicitly -- which will give better results when there
> are multiple items, but may not be as intuitive otherwise.

Just to close on this, the WG chose Option A (no change).
   https://lists.w3.org/Archives/Public/www-style/2015Sep/0064.html

~fantasai
Received on Thursday, 3 December 2015 22:08:33 UTC

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