Adds support for input element's maxlength attr

servo/servo#7320
servo/servo#7004

1 files changed, 9 insertions, 1 deletions

diff --git a/components/style/attr.rs b/components/style/attr.rs
index 625eeee3a5c..e50071e3b3f 100644
--- a/components/style/attr.rs
+++ b/components/style/attr.rs
@@ -5,7 +5,7 @@
 use cssparser::RGBA;
 use std::ops::Deref;
 use string_cache::{Atom, Namespace};
-use util::str::{DOMString, LengthOrPercentageOrAuto, parse_unsigned_integer, parse_legacy_color, parse_length};
+use util::str::{DOMString, LengthOrPercentageOrAuto, parse_integer, parse_unsigned_integer, parse_legacy_color, parse_length};
 use util::str::{split_html_space_chars, str_join};
 use values::specified::{Length};
 
@@ -17,6 +17,7 @@ pub enum AttrValue {
     String(DOMString),
     TokenList(DOMString, Vec<Atom>),
     UInt(DOMString, u32),
+    Int(DOMString, i32),
     Atom(Atom),
     Length(DOMString, Option<Length>),
     Color(DOMString, Option<RGBA>),
@@ -52,6 +53,12 @@ impl AttrValue {
         AttrValue::UInt(string, result)
     }
 
+    // https://html.spec.whatwg.org/multipage/infrastructure.html#limited-to-only-non-negative-numbers
+    pub fn from_i32(string: DOMString, default: i32) -> AttrValue {
+        let result = parse_integer(string.chars()).unwrap_or(default);
+        AttrValue::Int(string, result)
+    }
+
     // https://html.spec.whatwg.org/multipage/#limited-to-only-non-negative-numbers-greater-than-zero
     pub fn from_limited_u32(string: DOMString, default: u32) -> AttrValue {
         let result = parse_unsigned_integer(string.chars()).unwrap_or(default);
@@ -165,6 +172,7 @@ impl Deref for AttrValue {
                 AttrValue::UInt(ref value, _) |
                 AttrValue::Length(ref value, _) |
                 AttrValue::Color(ref value, _) |
+                AttrValue::Int(ref value, _) |
                 AttrValue::Dimension(ref value, _) => &value,
             AttrValue::Atom(ref value) => &value,
         }