implementing StorageEvent interface

components/script/dom/event.rs

@@ -37,6 +37,7 @@ pub enum EventTypeId {
     MessageEvent,
     MouseEvent,
     ProgressEvent,
+    StorageEvent,
     UIEvent,
     ErrorEvent
 }

components/script/dom/mod.rs

@@ -310,6 +310,7 @@ pub mod range;
 pub mod screen;
 pub mod servohtmlparser;
 pub mod storage;
+pub mod storageevent;
 pub mod text;
 pub mod treewalker;
 pub mod uievent;

components/script/dom/storageevent.rs

@@ -0,0 +1,113 @@
+/* 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::EventBinding::{EventMethods};
+use dom::bindings::codegen::Bindings::StorageEventBinding;
+use dom::bindings::codegen::Bindings::StorageEventBinding::{StorageEventMethods};
+
+use dom::bindings::codegen::InheritTypes::{EventCast};
+use dom::bindings::error::Fallible;
+use dom::bindings::global::GlobalRef;
+use dom::bindings::js::{MutNullableJS, JSRef, RootedReference, Temporary};
+use dom::bindings::utils::{reflect_dom_object};
+use dom::event::{Event, EventTypeId, EventBubbles, EventCancelable};
+use dom::storage::Storage;
+use util::str::DOMString;
+
+#[dom_struct]
+pub struct StorageEvent {
+    event: Event,
+    key: DOMRefCell<Option<DOMString>>,
+    oldValue: DOMRefCell<Option<DOMString>>,
+    newValue: DOMRefCell<Option<DOMString>>,
+    url: DOMRefCell<DOMString>,
+    storageArea: MutNullableJS<Storage>
+}
+
+
+impl StorageEvent {
+    pub fn new_inherited(type_id: EventTypeId,
+                         key: Option<DOMString>,
+                         oldValue: Option<DOMString>,
+                         newValue: Option<DOMString>,
+                         url: DOMString,
+                         storageArea: Option<JSRef<Storage>>) -> StorageEvent {
+        StorageEvent {
+            event: Event::new_inherited(type_id),
+            key: DOMRefCell::new(key),
+            oldValue: DOMRefCell::new(oldValue),
+            newValue: DOMRefCell::new(newValue),
+            url: DOMRefCell::new(url),
+            storageArea: MutNullableJS::new(storageArea)
+        }
+    }
+
+    pub fn new(global: GlobalRef,
+               type_: DOMString,
+               bubbles: EventBubbles,
+               cancelable: EventCancelable,
+               key: Option<DOMString>,
+               oldValue: Option<DOMString>,
+               newValue: Option<DOMString>,
+               url: DOMString,
+               storageArea: Option<JSRef<Storage>>) -> Temporary<StorageEvent> {
+        let ev = reflect_dom_object(box StorageEvent::new_inherited(EventTypeId::StorageEvent,
+                                                                    key, oldValue, newValue,
+                                                                    url, storageArea),
+                                    global,
+                                    StorageEventBinding::Wrap).root();
+        let event: JSRef<Event> = EventCast::from_ref(ev.r());
+        event.InitEvent(type_, bubbles == EventBubbles::Bubbles, cancelable == EventCancelable::Cancelable);
+        Temporary::from_rooted(ev.r())
+    }
+
+    pub fn Constructor(global: GlobalRef,
+                       type_: DOMString,
+                       init: &StorageEventBinding::StorageEventInit) -> Fallible<Temporary<StorageEvent>> {
+        let key = init.key.clone();
+        let oldValue = init.oldValue.clone();
+        let newValue = init.newValue.clone();
+        let url = init.url.clone();
+        let storageArea = init.storageArea.r();
+        let bubbles = if init.parent.bubbles { EventBubbles::Bubbles } else { EventBubbles::DoesNotBubble };
+        let cancelable = if init.parent.cancelable { EventCancelable::Cancelable } else { EventCancelable::NotCancelable };
+        let event = StorageEvent::new(global, type_,
+                                      bubbles, cancelable,
+                                      key, oldValue, newValue,
+                                      url, storageArea);
+        Ok(event)
+    }
+}
+
+impl<'a> StorageEventMethods for JSRef<'a, StorageEvent> {
+    fn GetKey(self) -> Option<DOMString> {
+        // FIXME(https://github.com/rust-lang/rust/issues/23338)
+        let key = self.key.borrow();
+        key.clone()
+    }
+
+    fn GetOldValue(self) -> Option<DOMString> {
+        // FIXME(https://github.com/rust-lang/rust/issues/23338)
+        let oldValue = self.oldValue.borrow();
+        oldValue.clone()
+    }
+
+    fn GetNewValue(self) -> Option<DOMString> {
+        // FIXME(https://github.com/rust-lang/rust/issues/23338)
+        let newValue = self.newValue.borrow();
+        newValue.clone()
+    }
+
+    fn Url(self) -> DOMString {
+        // FIXME(https://github.com/rust-lang/rust/issues/23338)
+        let url = self.url.borrow();
+        url.clone()
+    }
+
+    fn GetStorageArea(self) -> Option<Temporary<Storage>> {
+        self.storageArea.get()
+    }
+
+}

components/script/dom/webidls/StorageEvent.webidl

@@ -0,0 +1,28 @@
+/* -*- 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/.
+ *
+ * Interface for a client side storage. See
+ * https://html.spec.whatwg.org/multipage/webstorage.html#the-storageevent-interface
+ * for more information.
+ *
+ * Event sent to a window when a storage area changes.
+ */
+
+[Constructor(DOMString type, optional StorageEventInit eventInitDict)]
+interface StorageEvent : Event {
+  readonly attribute DOMString? key;
+  readonly attribute DOMString? oldValue;
+  readonly attribute DOMString? newValue;
+  readonly attribute DOMString url;
+  readonly attribute Storage? storageArea;
+};
+
+dictionary StorageEventInit : EventInit {
+  DOMString? key = null;
+  DOMString? oldValue = null;
+  DOMString? newValue = null;
+  DOMString url = "";
+  Storage? storageArea = null;
+};