Implement the Fetch method

components/script/dom/headers.rs

@@ -229,6 +229,10 @@ impl Headers {
         *self.header_list.borrow_mut() = HyperHeaders::new();
     }
 
+    pub fn set_headers(&self, hyper_headers: HyperHeaders) {
+        *self.header_list.borrow_mut() = hyper_headers;
+    }
+
     // https://fetch.spec.whatwg.org/#concept-header-extract-mime-type
     pub fn extract_mime_type(&self) -> Vec<u8> {
         self.header_list.borrow().get_raw("content-type").map_or(vec![], |v| v[0].clone())

components/script/dom/request.rs

@@ -445,6 +445,10 @@ impl Request {
         r_clone.Headers().set_guard(headers_guard);
         r_clone
     }
+
+    pub fn get_request(&self) -> NetTraitsRequest {
+        self.request.borrow().clone()
+    }
 }
 
 fn net_request_from_global(global: GlobalRef,

components/script/dom/response.rs

@@ -18,7 +18,9 @@ use dom::headers::{Headers, Guard};
 use dom::headers::{is_vchar, is_obs_text};
 use dom::promise::Promise;
 use dom::xmlhttprequest::Extractable;
+use hyper::header::Headers as HyperHeaders;
 use hyper::status::StatusCode;
+use hyper_serde::Serde;
 use net_traits::response::{ResponseBody as NetTraitsResponseBody};
 use std::mem;
 use std::rc::Rc;
@@ -344,3 +346,24 @@ impl ResponseMethods for Response {
 fn serialize_without_fragment(url: &Url) -> &str {
     &url[..Position::AfterQuery]
 }
+
+impl Response {
+    pub fn set_type(&self, new_response_type: DOMResponseType) {
+        *self.response_type.borrow_mut() = new_response_type;
+    }
+
+    pub fn set_headers(&self, option_hyper_headers: Option<Serde<HyperHeaders>>) {
+        self.Headers().set_headers(match option_hyper_headers {
+            Some(hyper_headers) => hyper_headers.into_inner(),
+            None => HyperHeaders::new(),
+        });
+    }
+
+    pub fn set_raw_status(&self, status: Option<(u16, Vec<u8>)>) {
+        *self.raw_status.borrow_mut() = status;
+    }
+
+    pub fn set_final_url(&self, final_url: Url) {
+        *self.url.borrow_mut() = Some(final_url);
+    }
+}

components/script/dom/webidls/Fetch.webidl

@@ -0,0 +1,11 @@
+/* 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/. */
+
+// https://fetch.spec.whatwg.org/#fetch-method
+
+[Exposed=(Window,Worker)]
+
+partial interface WindowOrWorkerGlobalScope {
+  [NewObject] Promise<Response> fetch(RequestInfo input, optional RequestInit init);
+};

components/script/dom/webidls/WindowOrWorkerGlobalScope.webidl

@@ -0,0 +1,30 @@
+/* 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/. */
+
+// https://html.spec.whatwg.org/multipage/#windoworworkerglobalscope
+
+// typedef (DOMString or Function) TimerHandler;
+
+[NoInterfaceObject, Exposed=(Window,Worker)]
+interface WindowOrWorkerGlobalScope {
+  // [Replaceable] readonly attribute USVString origin;
+
+  // base64 utility methods
+  // DOMString btoa(DOMString data);
+  // DOMString atob(DOMString data);
+
+  // timers
+  // long setTimeout(TimerHandler handler, optional long timeout = 0, any... arguments);
+  // void clearTimeout(optional long handle = 0);
+  // long setInterval(TimerHandler handler, optional long timeout = 0, any... arguments);
+  // void clearInterval(optional long handle = 0);
+
+  // ImageBitmap
+  // Promise<ImageBitmap> createImageBitmap(ImageBitmapSource image, optional ImageBitmapOptions options);
+  // Promise<ImageBitmap> createImageBitmap(
+  //   ImageBitmapSource image, long sx, long sy, long sw, long sh, optional ImageBitmapOptions options);
+};
+
+Window implements WindowOrWorkerGlobalScope;
+WorkerGlobalScope implements WindowOrWorkerGlobalScope;

components/script/dom/window.rs

@@ -12,8 +12,10 @@ use dom::bindings::codegen::Bindings::EventHandlerBinding::OnBeforeUnloadEventHa
 use dom::bindings::codegen::Bindings::EventHandlerBinding::OnErrorEventHandlerNonNull;
 use dom::bindings::codegen::Bindings::FunctionBinding::Function;
 use dom::bindings::codegen::Bindings::NodeBinding::NodeMethods;
+use dom::bindings::codegen::Bindings::RequestBinding::RequestInit;
 use dom::bindings::codegen::Bindings::WindowBinding::{self, FrameRequestCallback, WindowMethods};
 use dom::bindings::codegen::Bindings::WindowBinding::{ScrollBehavior, ScrollToOptions};
+use dom::bindings::codegen::UnionTypes::RequestOrUSVString;
 use dom::bindings::error::{Error, ErrorInfo, ErrorResult, Fallible, report_pending_exception};
 use dom::bindings::global::{GlobalRef, global_root_from_object};
 use dom::bindings::inheritance::Castable;
@@ -40,9 +42,11 @@ use dom::messageevent::MessageEvent;
 use dom::navigator::Navigator;
 use dom::node::{Node, from_untrusted_node_address, window_from_node};
 use dom::performance::Performance;
+use dom::promise::Promise;
 use dom::screen::Screen;
 use dom::storage::Storage;
 use euclid::{Point2D, Rect, Size2D};
+use fetch;
 use gfx_traits::LayerId;
 use ipc_channel::ipc::{self, IpcSender};
 use js::jsapi::{Evaluate2, HandleObject, HandleValue, JSAutoCompartment, JSContext};
@@ -902,6 +906,12 @@ impl WindowMethods for Window {
             Err(e) => Err(Error::Type(format!("Couldn't open URL: {}", e))),
         }
     }
+
+    #[allow(unrooted_must_root)]
+    // https://fetch.spec.whatwg.org/#fetch-method
+    fn Fetch(&self, input: RequestOrUSVString, init: &RequestInit) -> Rc<Promise> {
+        fetch::Fetch(self.global().r(), input, init)
+    }
 }
 
 pub trait ScriptHelpers {

components/script/dom/workerglobalscope.rs

@@ -5,8 +5,10 @@
 use devtools_traits::{DevtoolScriptControlMsg, ScriptToDevtoolsControlMsg, WorkerId};
 use dom::bindings::codegen::Bindings::EventHandlerBinding::OnErrorEventHandlerNonNull;
 use dom::bindings::codegen::Bindings::FunctionBinding::Function;
+use dom::bindings::codegen::Bindings::RequestBinding::RequestInit;
 use dom::bindings::codegen::Bindings::WorkerGlobalScopeBinding::WorkerGlobalScopeMethods;
-use dom::bindings::error::{Error, ErrorResult, Fallible, report_pending_exception, ErrorInfo};
+use dom::bindings::codegen::UnionTypes::RequestOrUSVString;
+use dom::bindings::error::{Error, ErrorInfo, ErrorResult, Fallible, report_pending_exception};
 use dom::bindings::global::{GlobalRef, GlobalRoot};
 use dom::bindings::inheritance::Castable;
 use dom::bindings::js::{JS, MutNullableHeap, Root};
@@ -17,10 +19,12 @@ use dom::console::TimerSet;
 use dom::crypto::Crypto;
 use dom::dedicatedworkerglobalscope::DedicatedWorkerGlobalScope;
 use dom::eventtarget::EventTarget;
+use dom::promise::Promise;
 use dom::serviceworkerglobalscope::ServiceWorkerGlobalScope;
 use dom::window::{base64_atob, base64_btoa};
 use dom::workerlocation::WorkerLocation;
 use dom::workernavigator::WorkerNavigator;
+use fetch;
 use ipc_channel::ipc::IpcSender;
 use js::jsapi::{HandleValue, JSAutoCompartment, JSContext, JSRuntime};
 use js::jsval::UndefinedValue;
@@ -393,6 +397,12 @@ impl WorkerGlobalScopeMethods for WorkerGlobalScope {
     fn ClearInterval(&self, handle: i32) {
         self.ClearTimeout(handle);
     }
+
+    #[allow(unrooted_must_root)]
+    // https://fetch.spec.whatwg.org/#fetch-method
+    fn Fetch(&self, input: RequestOrUSVString, init: &RequestInit) -> Rc<Promise> {
+        fetch::Fetch(self.global().r(), input, init)
+    }
 }