style: Implement basic column spans.

This patch provides some of the groundwork for column spans greater than
1. It implements the column-span CSS property (prefixed so as not to be
exposed to content) as well as the corresponding colspan attribute;
although the former is not well-specified outside of CSS multi-column
layout, INTRINSIC refers to it. Although width is distributed to
spanning columns, they do not yet contribute minimum and preferred
widths; this will be implemented in a follow-up.

Additionally, this patch cleans up some miscellaneous formatting issues
and improves the handling of table rowgroups.
This commit is contained in:
Patrick Walton 2014-12-07 23:01:35 -08:00
parent 14bafb11be
commit 56b78de5bc
13 changed files with 269 additions and 129 deletions

View file

@ -108,6 +108,7 @@ impl HTMLTableElementHelpers for HTMLTableElement {
fn get_border(&self) -> Option<u32> {
self.border.get()
}
fn get_width(&self) -> LengthOrPercentageOrAuto {
self.width.get()
}
@ -135,6 +136,7 @@ impl<'a> VirtualMethods for JSRef<'a, HTMLTableElement> {
.as_slice()
.chars()).unwrap_or(1)))
}
&atom!("width") => self.width.set(str::parse_length(attr.value().as_slice())),
_ => ()
}
}
@ -148,6 +150,7 @@ impl<'a> VirtualMethods for JSRef<'a, HTMLTableElement> {
match attr.local_name() {
&atom!("bgcolor") => self.background_color.set(None),
&atom!("border") => self.border.set(None),
&atom!("width") => self.width.set(AutoLpa),
_ => ()
}
}