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[css3-layout] Issues/suggestions for Template Layout Module

From: Alexis Deveria <adeveria@gmail.com>
Date: Mon, 27 Apr 2009 12:37:21 -0400
Message-ID: <5e5974a0904270937l1a72ede4m6702136ca36761a5@mail.gmail.com>
To: www-style@w3.org
Some issues that came up when working on my JavaScript implementation:

1. It wasn't clear to me what the height should be of a white space
row (i.e. " . . . ") when no height has been given to either the row
itself or the template. I believe my implementation currently sets the
height to 0, though Example IX seems to make it about 1em, or perhaps
it uses the height of the previous slot. Either way, the correct
behavior should probably be mentioned under [1] "Computing the height
of the slots"

[1] http://www.w3.org/TR/2009/WD-css3-layout-20090402/#rowheight

2. I feel like the spec is missing some examples on how templates deal
with slot elements with given widths/heights. As I understand it these
values are ignored, except when max-content, min-content, minmax(p,q),
or fit-content are used.

3. Some examples have suggested that template slots deal with borders
and padding the same way table cells do, but this may not be quite
clear enough. So I would recommend adding at least one more example
with expected rendering of a template with various combinations of
paddings, borders, margins applied to slot elements.

4. I assume that when widths/heights in the template are defined in
"em" values, the base font is that of the template element, right? In
which case an row with a height set of 1em that included an element
with a larger font size would actually have part of it clipped off.

That's all I could come up with for now, but I may mention more in the future.


Received on Monday, 27 April 2009 16:38:04 UTC

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