[css-writing-modes] computed value for text-orientation: sideways or sideways-right

• From: Jonathan Kew <jfkthame@gmail.com>
• Date: Thu, 17 Sep 2015 11:51:44 +0100
• To: www-style@w3.org
• Message-ID: <55FA9B40.1040306@gmail.com>

The recently-updated draft[1] says:

# Name:           text-orientation
# Value:          mixed | upright | sideways-right | sideways
# ...
# Computed value: specified value

Given that 'sideways' and 'sideways-right' are defined to be equivalent, 
could/should we change this such that 'sideways-right' computes to 
'sideways' (or possibly vice versa)? Then the UA can treat this as a 
simple alias during parsing, and avoid the need to keep track of the 
specified value just so that getComputedStyle() can return it correctly.

Which of 'sideways' or 'sideways-right' do we want to promote as the 
"canonical" computed value, and which should be an alias? (My vote goes 
to the simpler 'sideways', fwiw.)

JK

[1] https://drafts.csswg.org/css-writing-modes-3/#propdef-text-orientation

Received on Thursday, 17 September 2015 10:52:14 UTC