script: Implement the `color` attribute of the `<font>` element.

Improves Hacker News.

1 files changed, 58 insertions, 4 deletions

diff --git a/components/script/dom/htmlfontelement.rs b/components/script/dom/htmlfontelement.rs
index 2df515cbc83..d2faa87441c 100644
--- a/components/script/dom/htmlfontelement.rs
+++ b/components/script/dom/htmlfontelement.rs
@@ -2,19 +2,26 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use dom::attr::{Attr, AttrHelpers};
 use dom::bindings::codegen::Bindings::HTMLFontElementBinding;
-use dom::bindings::codegen::InheritTypes::HTMLFontElementDerived;
+use dom::bindings::codegen::Bindings::HTMLFontElementBinding::HTMLFontElementMethods;
+use dom::bindings::codegen::InheritTypes::{HTMLElementCast, HTMLFontElementDerived};
 use dom::bindings::js::{JSRef, Temporary};
 use dom::document::Document;
 use dom::eventtarget::{EventTarget, EventTargetTypeId};
 use dom::element::ElementTypeId;
 use dom::htmlelement::{HTMLElement, HTMLElementTypeId};
 use dom::node::{Node, NodeTypeId};
-use util::str::DOMString;
+use dom::virtualmethods::VirtualMethods;
+use util::str::{self, DOMString};
+
+use cssparser::RGBA;
+use std::cell::Cell;
 
 #[dom_struct]
 pub struct HTMLFontElement {
-    htmlelement: HTMLElement
+    htmlelement: HTMLElement,
+    color: Cell<Option<RGBA>>,
 }
 
 impl HTMLFontElementDerived for EventTarget {
@@ -26,7 +33,8 @@ impl HTMLFontElementDerived for EventTarget {
 impl HTMLFontElement {
     fn new_inherited(localName: DOMString, prefix: Option<DOMString>, document: JSRef<Document>) -> HTMLFontElement {
         HTMLFontElement {
-            htmlelement: HTMLElement::new_inherited(HTMLElementTypeId::HTMLFontElement, localName, prefix, document)
+            htmlelement: HTMLElement::new_inherited(HTMLElementTypeId::HTMLFontElement, localName, prefix, document),
+            color: Cell::new(None),
         }
     }
 
@@ -37,3 +45,49 @@ impl HTMLFontElement {
     }
 }
 
+impl<'a> HTMLFontElementMethods for JSRef<'a, HTMLFontElement> {
+    make_getter!(Color, "color");
+    make_setter!(SetColor, "color");
+}
+
+impl<'a> VirtualMethods for JSRef<'a,HTMLFontElement> {
+    fn super_type<'b>(&'b self) -> Option<&'b VirtualMethods> {
+        let htmlelement: &JSRef<HTMLElement> = HTMLElementCast::from_borrowed_ref(self);
+        Some(htmlelement as &VirtualMethods)
+    }
+
+    fn after_set_attr(&self, attr: JSRef<Attr>) {
+        if let Some(ref s) = self.super_type() {
+            s.after_set_attr(attr);
+        }
+
+        match attr.local_name() {
+            &atom!("color") => {
+                self.color.set(str::parse_legacy_color(&attr.value()).ok())
+            }
+            _ => {}
+        }
+    }
+
+    fn before_remove_attr(&self, attr: JSRef<Attr>) {
+        if let Some(ref s) = self.super_type() {
+            s.before_remove_attr(attr);
+        }
+
+        match attr.local_name() {
+            &atom!("color") => self.color.set(None),
+            _ => ()
+        }
+    }
+}
+
+pub trait HTMLFontElementHelpers {
+    fn get_color(&self) -> Option<RGBA>;
+}
+
+impl HTMLFontElementHelpers for HTMLFontElement {
+    fn get_color(&self) -> Option<RGBA> {
+        self.color.get()
+    }
+}
+