Add support for MaxLength

This builds on the ExtremumLength type from the previous commit.

1 files changed, 20 insertions, 1 deletions

diff --git a/components/style/gecko/values.rs b/components/style/gecko/values.rs
index 814633e4517..cccb5ca697f 100644
--- a/components/style/gecko/values.rs
+++ b/components/style/gecko/values.rs
@@ -14,7 +14,7 @@ use std::cmp::max;
 use values::{Auto, Either, ExtremumLength, None_, Normal};
 use values::computed::{Angle, LengthOrPercentageOrNone, Number};
 use values::computed::{LengthOrPercentage, LengthOrPercentageOrAuto};
-use values::computed::MinLength;
+use values::computed::{MaxLength, MinLength};
 use values::computed::basic_shape::ShapeRadius;
 use values::specified::grid::{TrackBreadth, TrackKeyword};
 
@@ -321,6 +321,25 @@ impl GeckoStyleCoordConvertible for MinLength {
     }
 }
 
+impl GeckoStyleCoordConvertible for MaxLength {
+    fn to_gecko_style_coord<T: CoordDataMut>(&self, coord: &mut T) {
+        match *self {
+            MaxLength::LengthOrPercentage(ref lop) => lop.to_gecko_style_coord(coord),
+            MaxLength::None => coord.set_value(CoordDataValue::None),
+            MaxLength::ExtremumLength(ref e) => e.to_gecko_style_coord(coord),
+        }
+    }
+
+    fn from_gecko_style_coord<T: CoordData>(coord: &T) -> Option<Self> {
+        LengthOrPercentage::from_gecko_style_coord(coord).map(MaxLength::LengthOrPercentage)
+            .or_else(|| ExtremumLength::from_gecko_style_coord(coord).map(MaxLength::ExtremumLength))
+            .or_else(|| match coord.as_value() {
+                CoordDataValue::None => Some(MaxLength::None),
+                _ => None,
+            })
+    }
+}
+
 /// Convert a given RGBA value to `nscolor`.
 pub fn convert_rgba_to_nscolor(rgba: &RGBA) -> u32 {
     ((rgba.alpha as u32) << 24) |