[webkit-dev] CSS Logical Properties and Values

[Oriol Brufau]

https://drafts.csswg.org/css-logical-1/defines properties and values to
control layout
through logical, rather than physical, direction and dimension mappings.
 
I have been working on implementing this in Blink, now I'm starting with
WebKit.
 
Various properties are already supported but using non-standard names
with a -webkit-
prefix. The standard properties have already been shipped in Firefox and
Blink, so
I will start with implementing them and converting the prefixed ones
into aliases.
This will happen in https://bugs.webkit.org/show_bug.cgi?id=188386, the
specific list
of properties is:
 * margin-{block,inline}-{start,end}
 * padding-{block,inline}-{start,end}
 * border-{block,inline}-{start,end}
 * border-{block,inline}-{start,end}-{width,style,color}
 * {block,inline}-size
 * {min,max}-{block,inline}-size
See Blink's Intent to Ship:
https://groups.google.com/a/chromium.org/forum/#!topic/blink-dev/tkN-r119eNc
<https://groups.google.com/a/chromium.org/forum/#%21topic/blink-dev/tkN-r119eNc>
 
After this I willcontinue withthe remaining flow-relative box model
properties and the
flow-relative values for existing properties:
 * margin-{block,inline}
 * padding-{block,inline}
 * border-{block,inline}
 * border-{block,inline}-{width,style,color}
 * float: inline-{start,end}
 * clear: inline-{start,end}
 * resize: {block,inline}
This will be behind an experimentalflag, like it's being done in Blink.
Firefox shipped some.
See Blink's Intent to Implement:
https://groups.google.com/a/chromium.org/d/msg/blink-dev/48OwfwZrbvI/A1XZFGkzAwAJ
 
I would like to get your feedback and comments about this topic, if you
are fine with the plan
we will start to land patches next week.
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