Task 1

components/script/dom/htmlimageelement.rs

@@ -30,12 +30,15 @@ use std::sync::Arc;
 use string_cache::Atom;
 use url::{Url, UrlParser};
 use util::str::DOMString;
+use dom::imagerequest::ImageRequest;
 
 #[dom_struct]
 pub struct HTMLImageElement {
     htmlelement: HTMLElement,
     url: DOMRefCell<Option<Url>>,
     image: DOMRefCell<Option<Arc<Image>>>,
+    currentRequest: ImageRequest,
+    pendingRequest: ImageRequest,
 }
 
 impl HTMLImageElement {

components/script/dom/imagerequest.rs

@@ -0,0 +1,67 @@
+/* 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::url::URL;
+use dom::bindings::global::GlobalRef;
+use dom::imagedata::ImageData;
+use dom::bindings::codegen::Bindings::ImageDataBinding::ImageDataMethods;
+use dom::bindings::reflector::{Reflector, reflect_dom_object};
+use dom::bindings::codegen::Bindings::ImageRequestBinding;
+use dom::bindings::codegen::Bindings::ImageRequestBinding::ImageRequestMethods;
+
+// Unavailable
+//     The user agent hasn't obtained any image data, or has obtained some or all of the 
+//     image data but hasn't yet decoded enough of the image to get the image dimensions.
+// Partially available
+//     The user agent has obtained some of the image data and at least the image dimensions are available.
+// Completely available
+//     The user agent has obtained all of the image data and at least the image dimensions are available.
+// Broken
+//     The user agent has obtained all of the image data that it can, but it cannot even 
+//     decode the image enough to get the image dimensions (e.g. the image is corrupted, or the format 
+//         is not supported, or no data could be obtained).
+
+#[dom_struct]
+pub struct ImageRequest {
+  reflector_: Reflector,
+  state : ImageState,
+  currentUrl : URL,
+  imageData : ImageData,
+}
+
+//#[derive(JSTraceable, Clone, HeapSizeOf)]
+pub enum ImageState {
+   Unavailable,
+   PartiallyAvailable,
+   CompletelyAvailable,
+   Broken,
+}
+
+impl ImageRequest {
+   fn new(global: GlobalRef, imageData : ImageData, currentUrl : DOMString) -> ImageRequest {
+       ImageRequest {
+          reflector_: Reflector::new(),
+          state : ImageState::Unavailable,
+          currentUrl : currentUrl,
+          imageData : imageData,
+       }
+   }
+}
+
+
+impl ImageRequestMethods for ImageRequest {
+
+   fn State(&self) -> ImageState {
+       self.state
+   }
+
+   fn CurrentUrl(&self) -> URL {
+       self.currentUrl
+   }
+
+   fn ImageData(&self) -> ImageData {
+       self.imageData
+   }
+}

components/script/dom/mod.rs

@@ -321,6 +321,7 @@ pub mod htmlulistelement;
 pub mod htmlunknownelement;
 pub mod htmlvideoelement;
 pub mod imagedata;
+pub mod imagerequest;
 pub mod keyboardevent;
 pub mod location;
 pub mod messageevent;

components/script/dom/webidls/ImageRequest.webidl

@@ -0,0 +1,18 @@
+/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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/. */
+/*
+ * The origin of this IDL file is
+ * https://html.spec.whatwg.org/multipage/#imagerequest
+ *
+ * © Copyright 2004-2011 Apple Computer, Inc., Mozilla Foundation, and Opera Software ASA.
+ * You are granted a license to use, reproduce and create derivative works of this document.
+ */
+
+//[Constructor(ImageData imageData, URL currentUrl)]
+interface ImageRequest {
+  readonly attribute ImageState state;
+  readonly attribute URL currentUrl;
+  readonly attribute ImageData imageData;
+};