ISSUE-126: Chaining regions

Chaining regions

State:
RAISED
Product:
CSS3 Template Layout
Raised by:
Bert Bos
Opened on:
2010-05-31
Description:
It could, under certain conditions, be possible to support complex shapes for slots, by creating multiple simple slots and describing in which order they are filled, e.g.:

display:
"a . b"
". . ."
"c . d";
chains: a b c d;

This would create one chain, consisting of the four simple slots in the given order.

However, if the slots of a chain have a size that depends on their content, determining that size becomes an optimization problem, which might require multiple passes. (It's not a problem if all slots have an "outside-in" size, or if only the last slot in a chain has a size that depends on its content. Or at least it's not a new problem: The algorithm in that case is the same as for pagination.)
Related Actions Items:
No related actions
Related emails:
  1. Re: [CSSWG] Minutes and Resolutions 2010-06-02 (from peter.moulder@monash.edu on 2010-06-04)
  2. [CSSWG] Minutes and Resolutions 2010-06-02 (from fantasai.lists@inkedblade.net on 2010-06-02)
  3. ISSUE-126: Chaining regions [CSS3 Template Layout] (from sysbot+tracker@w3.org on 2010-05-31)

Related notes:

No additional notes.

Changelog:

Created issue 'Chaining regions' nickname owned by Bert Bos on product CSS3 Template Layout, description 'It could, under certain conditions, be possible to support complex shapes for slots, by creating multiple simple slots and describing in which order they are filled, e.g.:

display:
"a . b"
". . ."
"c . d";
chains: a b c d;

This would create one chain, consisting of the four simple slots in the given order.

However, if the slots of a chain have a size that depends on their content, determining that size becomes an optimization problem, which might require multiple passes. (It's not a problem if all slots have an "outside-in" size, or if only the last slot in a chain has a size that depends on its content. Or at least it's not a new problem: The algorithm in that case is the same as for pagination.)' non-public

Bert Bos, 31 May 2010, 23:04:29


Peter Linss <peter.linss@hp.com>, Daniel Glazman <daniel.glazman@disruptive-innovations.com>, Chairs, Chris Lilley <chris@w3.org>, Bert Bos <bert@w3.org>, Staff Contacts
Tracker: documentation, (configuration for this group), originally developed by Dean Jackson, is developed and maintained by the Systems Team <w3t-sys@w3.org>.
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