Auto merge of #5868 - nox:document-legacy, r=jdm

<!-- Reviewable:start -->
[<img src="https://reviewable.io/review_button.png" height=40 alt="Review on Reviewable"/>](https://reviewable.io/reviews/servo/servo/5868)
<!-- Reviewable:end -->

4 files changed, 98 insertions, 16 deletions

diff --git a/components/script/dom/document.rs b/components/script/dom/document.rs
index 8cd3655d7c5..cbfc214f040 100644
--- a/components/script/dom/document.rs
+++ b/components/script/dom/document.rs
@@ -11,8 +11,8 @@ use dom::bindings::codegen::Bindings::EventHandlerBinding::EventHandlerNonNull;
 use dom::bindings::codegen::Bindings::EventTargetBinding::EventTargetMethods;
 use dom::bindings::codegen::Bindings::NodeBinding::NodeMethods;
 use dom::bindings::codegen::Bindings::NodeFilterBinding::NodeFilter;
-use dom::bindings::codegen::InheritTypes::{DocumentDerived, EventCast, HTMLElementCast};
-use dom::bindings::codegen::InheritTypes::{HTMLHeadElementCast, ElementCast};
+use dom::bindings::codegen::InheritTypes::{DocumentDerived, EventCast, HTMLBodyElementCast};
+use dom::bindings::codegen::InheritTypes::{HTMLElementCast, HTMLHeadElementCast, ElementCast};
 use dom::bindings::codegen::InheritTypes::{DocumentTypeCast, HTMLHtmlElementCast, NodeCast};
 use dom::bindings::codegen::InheritTypes::{EventTargetCast, HTMLAnchorElementCast};
 use dom::bindings::codegen::InheritTypes::{HTMLAnchorElementDerived, HTMLAppletElementDerived};
@@ -226,6 +226,8 @@ pub trait DocumentHelpers<'a> {
         modifiers: KeyModifiers, compositor: &mut Box<ScriptListener+'static>);
     fn node_from_nodes_and_strings(self, nodes: Vec<NodeOrString>)
                                    -> Fallible<Temporary<Node>>;
+    fn get_body_attribute(self, local_name: &Atom) -> DOMString;
+    fn set_body_attribute(self, local_name: &Atom, value: DOMString);
 
     /// Handles a mouse-move event coming from the compositor.
     fn handle_mouse_move_event(self,
@@ -742,6 +744,21 @@ impl<'a> DocumentHelpers<'a> for JSRef<'a, Document> {
         }
     }
 
+    fn get_body_attribute(self, local_name: &Atom) -> DOMString {
+        match self.GetBody().and_then(HTMLBodyElementCast::to_temporary).root() {
+            Some(ref body) => {
+                ElementCast::from_ref(body.r()).get_string_attribute(local_name)
+            },
+            None => "".to_owned()
+        }
+    }
+
+    fn set_body_attribute(self, local_name: &Atom, value: DOMString) {
+        if let Some(ref body) = self.GetBody().and_then(HTMLBodyElementCast::to_temporary).root() {
+            ElementCast::from_ref(body.r()).set_string_attribute(local_name, value);
+        }
+    }
+
     fn set_current_script(self, script: Option<JSRef<HTMLScriptElement>>) {
         self.current_script.set(script.map(JS::from_rooted));
     }
@@ -1493,6 +1510,14 @@ impl<'a> DocumentMethods for JSRef<'a, Document> {
         Ok(())
     }
 
+    fn BgColor(self) -> DOMString {
+        self.get_body_attribute(&atom!("bgcolor"))
+    }
+
+    fn SetBgColor(self, value: DOMString) {
+        self.set_body_attribute(&atom!("bgcolor"), value)
+    }
+
     global_event_handlers!();
     event_handler!(readystatechange, GetOnreadystatechange, SetOnreadystatechange);
 }
diff --git a/components/script/dom/htmlbodyelement.rs b/components/script/dom/htmlbodyelement.rs
index 1fb38160cd2..bf11d11c43c 100644
--- a/components/script/dom/htmlbodyelement.rs
+++ b/components/script/dom/htmlbodyelement.rs
@@ -19,6 +19,7 @@ use dom::virtualmethods::VirtualMethods;
 use dom::window::WindowHelpers;
 
 use cssparser::RGBA;
+use string_cache::Atom;
 use util::str::{self, DOMString};
 
 use std::borrow::ToOwned;
@@ -57,6 +58,11 @@ impl HTMLBodyElement {
 }
 
 impl<'a> HTMLBodyElementMethods for JSRef<'a, HTMLBodyElement> {
+
+    // https://html.spec.whatwg.org/#dom-body-bgcolor
+    make_getter!(BgColor, "bgcolor");
+    make_setter!(SetBgColor, "bgcolor");
+
     fn GetOnunload(self) -> Option<EventHandlerNonNull> {
         let win = window_from_node(self).root();
         win.r().GetOnunload()
diff --git a/components/script/dom/webidls/Document.webidl b/components/script/dom/webidls/Document.webidl
index eb7e17ed38c..2f01882ddb4 100644
--- a/components/script/dom/webidls/Document.webidl
+++ b/components/script/dom/webidls/Document.webidl
@@ -8,16 +8,17 @@
  * https://www.whatwg.org/specs/web-apps/current-work/#the-document-object
  */
 
-/* https://dom.spec.whatwg.org/#interface-document */
+// https://dom.spec.whatwg.org/#interface-document
 [Constructor]
 interface Document : Node {
+  [SameObject]
   readonly attribute DOMImplementation implementation;
   readonly attribute DOMString URL;
   readonly attribute Element? activeElement;
   readonly attribute DOMString documentURI;
   readonly attribute DOMString compatMode;
   readonly attribute DOMString characterSet;
-  readonly attribute DOMString inputEncoding;
+  readonly attribute DOMString inputEncoding; // legacy alias of .characterSet
   readonly attribute DOMString contentType;
 
   readonly attribute DocumentType? doctype;
@@ -66,35 +67,86 @@ Document implements ParentNode;
 
 enum DocumentReadyState { "loading", "interactive", "complete" };
 
-/* https://www.whatwg.org/specs/web-apps/current-work/#the-document-object */
-partial interface Document {
+// https://www.whatwg.org/specs/web-apps/current-work/#the-document-object
+// [OverrideBuiltins]
+partial /*sealed*/ interface Document {
   // resource metadata management
-  readonly attribute DocumentReadyState readyState;
-  readonly attribute DOMString lastModified;
-  readonly attribute Location location;
+  // [PutForwards=href, Unforgeable]
+  readonly attribute Location/*?*/ location;
+  // attribute DOMString domain;
+  // readonly attribute DOMString referrer;
   [Throws]
   attribute DOMString cookie;
+  readonly attribute DOMString lastModified;
+  readonly attribute DocumentReadyState readyState;
 
   // DOM tree accessors
+  // getter object (DOMString name);
            attribute DOMString title;
            [SetterThrows]
            attribute HTMLElement? body;
   readonly attribute HTMLHeadElement? head;
+  [SameObject]
   readonly attribute HTMLCollection images;
+  [SameObject]
   readonly attribute HTMLCollection embeds;
+  [SameObject]
   readonly attribute HTMLCollection plugins;
+  [SameObject]
   readonly attribute HTMLCollection links;
+  [SameObject]
   readonly attribute HTMLCollection forms;
+  [SameObject]
   readonly attribute HTMLCollection scripts;
-  readonly attribute HTMLCollection anchors;
-  readonly attribute HTMLCollection applets;
   NodeList getElementsByName(DOMString elementName);
+  // NodeList getItems(optional DOMString typeNames = ""); // microdata
+  // [SameObject]
+  // readonly attribute DOMElementMap cssElementMap;
   readonly attribute HTMLScriptElement? currentScript;
 
+  // dynamic markup insertion
+  // Document open(optional DOMString type = "text/html", optional DOMString replace = "");
+  // WindowProxy open(DOMString url, DOMString name, DOMString features, optional boolean replace = false);
+  // void close();
+  // void write(DOMString... text);
+  // void writeln(DOMString... text);
+
+  // user interaction
+  readonly attribute Window/*Proxy?*/ defaultView;
+  // readonly attribute Element? activeElement;
+  // boolean hasFocus();
+  // attribute DOMString designMode;
+  // boolean execCommand(DOMString commandId, optional boolean showUI = false, optional DOMString value = "");
+  // boolean queryCommandEnabled(DOMString commandId);
+  // boolean queryCommandIndeterm(DOMString commandId);
+  // boolean queryCommandState(DOMString commandId);
+  // boolean queryCommandSupported(DOMString commandId);
+  // DOMString queryCommandValue(DOMString commandId);
+  // readonly attribute HTMLCollection commands;
+
   // special event handler IDL attributes that only apply to Document objects
   [LenientThis] attribute EventHandler onreadystatechange;
 
-  // user interaction
-  readonly attribute Window defaultView;
+  // also has obsolete members
 };
 Document implements GlobalEventHandlers;
+
+// https://html.spec.whatwg.org/#Document-partial
+partial interface Document {
+  // [TreatNullAs=EmptyString] attribute DOMString fgColor;
+  // [TreatNullAs=EmptyString] attribute DOMString linkColor;
+  // [TreatNullAs=EmptyString] attribute DOMString vlinkColor;
+  // [TreatNullAs=EmptyString] attribute DOMString alinkColor;
+  [TreatNullAs=EmptyString] attribute DOMString bgColor;
+
+  [SameObject]
+  readonly attribute HTMLCollection anchors;
+  [SameObject]
+  readonly attribute HTMLCollection applets;
+
+  // void clear();
+  // void captureEvents();
+  // void releaseEvents();
+
+  // readonly attribute HTMLAllCollection all;
+};
diff --git a/components/script/dom/webidls/HTMLBodyElement.webidl b/components/script/dom/webidls/HTMLBodyElement.webidl
index 981ff03490a..f68f51e866e 100644
--- a/components/script/dom/webidls/HTMLBodyElement.webidl
+++ b/components/script/dom/webidls/HTMLBodyElement.webidl
@@ -3,9 +3,8 @@
  * 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/. */
 
-// https://www.whatwg.org/html/#htmlbodyelement
+// https://html.spec.whatwg.org/#the-body-element
 interface HTMLBodyElement : HTMLElement {
-
   // also has obsolete members
 };
 HTMLBodyElement implements WindowEventHandlers;
@@ -16,6 +15,6 @@ partial interface HTMLBodyElement {
   //[TreatNullAs=EmptyString] attribute DOMString link;
   //[TreatNullAs=EmptyString] attribute DOMString vLink;
   //[TreatNullAs=EmptyString] attribute DOMString aLink;
-  //[TreatNullAs=EmptyString] attribute DOMString bgColor;
+    [TreatNullAs=EmptyString] attribute DOMString bgColor;
   //                          attribute DOMString background;
 };