implement ExtendableEvent as base type for ServiceWorker events

components/script/dom/extendablemessageevent.rs

@@ -0,0 +1,95 @@
+/* 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::Bindings::ExtendableMessageEventBinding;
+use dom::bindings::codegen::Bindings::ExtendableMessageEventBinding::ExtendableMessageEventMethods;
+use dom::bindings::error::Fallible;
+use dom::bindings::global::GlobalRef;
+use dom::bindings::inheritance::Castable;
+use dom::bindings::js::Root;
+use dom::bindings::reflector::reflect_dom_object;
+use dom::bindings::str::DOMString;
+use dom::event::Event;
+use dom::eventtarget::EventTarget;
+use dom::extendableevent::ExtendableEvent;
+use js::jsapi::{HandleValue, Heap, JSContext};
+use js::jsval::JSVal;
+use std::default::Default;
+use string_cache::Atom;
+
+#[dom_struct]
+pub struct ExtendableMessageEvent {
+    event: ExtendableEvent,
+    data: Heap<JSVal>,
+    origin: DOMString,
+    lastEventId: DOMString,
+}
+
+impl ExtendableMessageEvent {
+    pub fn new(global: GlobalRef, type_: Atom,
+               bubbles: bool, cancelable: bool,
+               data: HandleValue, origin: DOMString, lastEventId: DOMString)
+               -> Root<ExtendableMessageEvent> {
+        let mut ev = box ExtendableMessageEvent {
+            event: ExtendableEvent::new_inherited(),
+            data: Heap::default(),
+            origin: origin,
+            lastEventId: lastEventId,
+        };
+        ev.data.set(data.get());
+        let ev = reflect_dom_object(ev, global, ExtendableMessageEventBinding::Wrap);
+        {
+            let event = ev.upcast::<Event>();
+            event.init_event(type_, bubbles, cancelable);
+        }
+        ev
+    }
+
+    pub fn Constructor(global: GlobalRef,
+                       type_: DOMString,
+                       init: &ExtendableMessageEventBinding::ExtendableMessageEventInit)
+                       -> Fallible<Root<ExtendableMessageEvent>> {
+        rooted!(in(global.get_cx()) let data = init.data);
+        let ev = ExtendableMessageEvent::new(global, Atom::from(type_),
+                                             init.parent.parent.bubbles,
+                                             init.parent.parent.cancelable,
+                                             data.handle(),
+                                             init.origin.clone().unwrap(),
+                                             init.lastEventId.clone().unwrap());
+        Ok(ev)
+    }
+}
+
+impl ExtendableMessageEvent {
+    pub fn dispatch_jsval(target: &EventTarget,
+                          scope: GlobalRef,
+                          message: HandleValue) {
+        let Extendablemessageevent = ExtendableMessageEvent::new(
+            scope, atom!("message"), false, false, message,
+            DOMString::new(), DOMString::new());
+        Extendablemessageevent.upcast::<Event>().fire(target);
+    }
+}
+
+impl ExtendableMessageEventMethods for ExtendableMessageEvent {
+    // https://w3c.github.io/ServiceWorker/#extendablemessage-event-data-attribute
+    fn Data(&self, _cx: *mut JSContext) -> JSVal {
+        self.data.get()
+    }
+
+    // https://w3c.github.io/ServiceWorker/#extendablemessage-event-origin-attribute
+    fn Origin(&self) -> DOMString {
+        self.origin.clone()
+    }
+
+    // https://w3c.github.io/ServiceWorker/#extendablemessage-event-lasteventid-attribute
+    fn LastEventId(&self) -> DOMString {
+        self.lastEventId.clone()
+    }
+
+    // https://dom.spec.whatwg.org/#dom-event-istrusted
+    fn IsTrusted(&self) -> bool {
+        self.event.IsTrusted()
+    }
+}