stylo: Implement gecko glue for font-language-override.

To be aligned with the implementation from Gecko side, we parse
font-language-override as Normal keyword or String. Then, we compute
and store it as a u32. So, as to the stylo glue, we can just pass the
u32 to Gecko.

The extra crate, byteorder, is used to simplify the computing and
serialization.

Since we now implement font-language-override for Gecko, we can remove
the additional branches for font-language-override in font shorthand.

ref: Gecko Bug 1347821
This commit is contained in:
Jeremy Chen 2017-03-27 00:31:32 +08:00
parent 9eb6bb78b0
commit a9e4b9caa6
6 changed files with 103 additions and 39 deletions

1
Cargo.lock generated
View file

@ -2744,6 +2744,7 @@ dependencies = [
"atomic_refcell 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
"bindgen 0.22.0 (registry+https://github.com/rust-lang/crates.io-index)",
"bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
"byteorder 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
"cfg-if 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
"cssparser 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)",
"encoding 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",