Partial implementation of FormData and File

src/components/script/dom/blob.rs

@@ -2,23 +2,32 @@
  * 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::FileDerived;
 use dom::bindings::js::{JS, JSRef, Temporary};
 use dom::bindings::utils::{Reflectable, Reflector, reflect_dom_object};
 use dom::bindings::error::Fallible;
 use dom::bindings::codegen::Bindings::BlobBinding;
 use dom::window::Window;
 
+#[deriving(Encodable)]
+pub enum BlobType {
+    BlobTypeId,
+    FileTypeId
+}
+
 #[deriving(Encodable)]
 pub struct Blob {
     pub reflector_: Reflector,
-    pub window: JS<Window>
+    pub window: JS<Window>,
+    pub type_: BlobType
 }
 
 impl Blob {
     pub fn new_inherited(window: &JSRef<Window>) -> Blob {
         Blob {
             reflector_: Reflector::new(),
-            window: JS::from_rooted(window)
+            window: JS::from_rooted(window),
+            type_: BlobTypeId
         }
     }
 
@@ -41,3 +50,12 @@ impl Reflectable for Blob {
         &self.reflector_
     }
 }
+
+impl FileDerived for Blob {
+    fn is_file(&self) -> bool {
+        match self.type_ {
+            FileTypeId => true,
+            _ => false
+        }
+    }
+}