Implement EventSource and update test expectations

components/script/dom/eventsource.rs

@@ -0,0 +1,102 @@
+/* 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::cell::DOMRefCell;
+use dom::bindings::codegen::Bindings::EventHandlerBinding::EventHandlerNonNull;
+use dom::bindings::codegen::Bindings::EventSourceBinding::{EventSourceInit, EventSourceMethods, Wrap};
+use dom::bindings::error::{Error, Fallible};
+use dom::bindings::global::GlobalRef;
+use dom::bindings::js::Root;
+use dom::bindings::reflector::reflect_dom_object;
+use dom::eventtarget::EventTarget;
+use std::cell::Cell;
+use url::Url;
+use util::str::DOMString;
+
+#[derive(JSTraceable, PartialEq, Copy, Clone, Debug, HeapSizeOf)]
+enum EventSourceReadyState {
+    Connecting = 0,
+    Open = 1,
+    Closed = 2
+}
+
+#[dom_struct]
+pub struct EventSource {
+    eventtarget: EventTarget,
+    url: Url,
+    ready_state: Cell<EventSourceReadyState>,
+    with_credentials: bool,
+    last_event_id: DOMRefCell<DOMString>
+}
+
+impl EventSource {
+    fn new_inherited(url: Url, with_credentials: bool) -> EventSource {
+        EventSource {
+            eventtarget: EventTarget::new_inherited(),
+            url: url,
+            ready_state: Cell::new(EventSourceReadyState::Connecting),
+            with_credentials: with_credentials,
+            last_event_id: DOMRefCell::new(DOMString::from(""))
+        }
+    }
+
+    fn new(global: GlobalRef, url: Url, with_credentials: bool) -> Root<EventSource> {
+        reflect_dom_object(box EventSource::new_inherited(url, with_credentials), global, Wrap)
+    }
+
+    pub fn Constructor(global: GlobalRef,
+                       url_str: DOMString,
+                       event_source_init: &EventSourceInit) -> Fallible<Root<EventSource>> {
+        // Steps 1-2
+        let base_url = global.get_url();
+        let url = match base_url.join(&*url_str) {
+            Ok(u) => u,
+            Err(_) => return Err(Error::Syntax)
+        };
+        // Step 3
+        let event_source = EventSource::new(global, url, event_source_init.withCredentials);
+        // Step 4
+        // Step 5
+        // Step 6
+        // Step 7
+        // Step 8
+        // Step 9
+        // Step 10
+        // Step 11
+        Ok(event_source)
+        // Step 12
+    }
+}
+
+impl EventSourceMethods for EventSource {
+    // https://html.spec.whatwg.org/multipage/#handler-eventsource-onopen
+    event_handler!(open, GetOnopen, SetOnopen);
+
+    // https://html.spec.whatwg.org/multipage/#handler-eventsource-onmessage
+    event_handler!(message, GetOnmessage, SetOnmessage);
+
+    // https://html.spec.whatwg.org/multipage/#handler-eventsource-onerror
+    event_handler!(error, GetOnerror, SetOnerror);
+
+    // https://html.spec.whatwg.org/multipage/#dom-eventsource-url
+    fn Url(&self) -> DOMString {
+        DOMString::from(self.url.serialize())
+    }
+
+    // https://html.spec.whatwg.org/multipage/#dom-eventsource-withcredentials
+    fn WithCredentials(&self) -> bool {
+        self.with_credentials
+    }
+
+    // https://html.spec.whatwg.org/multipage/#dom-eventsource-readystate
+    fn ReadyState(&self) -> u16 {
+        self.ready_state.get() as u16
+    }
+
+    // https://html.spec.whatwg.org/multipage/#dom-eventsource-close
+    fn Close(&self) {
+        self.ready_state.set(EventSourceReadyState::Closed);
+        // TODO: Terminate ongoing fetch
+    }
+}

components/script/dom/mod.rs

@@ -246,6 +246,7 @@ pub mod element;
 pub mod errorevent;
 pub mod event;
 pub mod eventdispatcher;
+pub mod eventsource;
 pub mod eventtarget;
 pub mod file;
 pub mod filelist;

components/script/dom/webidls/EventSource.webidl

@@ -0,0 +1,31 @@
+/* -*- 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/#eventsource
+ */
+
+[Constructor(DOMString url, optional EventSourceInit eventSourceInitDict),
+/*Exposed=(Window,Worker)*/]
+interface EventSource : EventTarget {
+  readonly attribute DOMString url;
+  readonly attribute boolean withCredentials;
+
+  // ready state
+  const unsigned short CONNECTING = 0;
+  const unsigned short OPEN = 1;
+  const unsigned short CLOSED = 2;
+  readonly attribute unsigned short readyState;
+
+  // networking
+  attribute EventHandler onopen;
+  attribute EventHandler onmessage;
+  attribute EventHandler onerror;
+  void close();
+};
+
+dictionary EventSourceInit {
+  boolean withCredentials = false;
+};