Webidl and basic implementation of XHR object

src/components/script/dom/xmlhttprequesteventtarget.rs

@@ -0,0 +1,40 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * 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::bindings::codegen::InheritTypes::XMLHttpRequestEventTargetDerived;
+use dom::bindings::utils::{Reflectable, Reflector};
+use dom::eventtarget::{EventTarget, XMLHttpRequestTargetTypeId};
+use dom::xmlhttprequest::XMLHttpRequestId;
+
+#[deriving(Encodable)]
+pub struct XMLHttpRequestEventTarget {
+    pub eventtarget: EventTarget,
+}
+
+impl XMLHttpRequestEventTarget {
+    pub fn new_inherited(type_id: XMLHttpRequestId) -> XMLHttpRequestEventTarget {
+        XMLHttpRequestEventTarget {
+            eventtarget: EventTarget::new_inherited(XMLHttpRequestTargetTypeId(type_id))
+        }
+    }
+}
+impl XMLHttpRequestEventTargetDerived for EventTarget {
+    fn is_xmlhttprequesteventtarget(&self) -> bool {
+        match self.type_id {
+            XMLHttpRequestTargetTypeId(_) => true,
+            _ => false
+        }
+    }
+
+}
+
+impl Reflectable for XMLHttpRequestEventTarget {
+    fn reflector<'a>(&'a self) -> &'a Reflector {
+        self.eventtarget.reflector()
+    }
+
+    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
+        self.eventtarget.mut_reflector()
+    }
+}