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-rw-r--r--dom/events/MessageEvent.h102
1 files changed, 102 insertions, 0 deletions
diff --git a/dom/events/MessageEvent.h b/dom/events/MessageEvent.h
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+++ b/dom/events/MessageEvent.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/. */
+
+#ifndef mozilla_dom_MessageEvent_h_
+#define mozilla_dom_MessageEvent_h_
+
+#include "js/RootingAPI.h"
+#include "js/Value.h"
+#include "mozilla/AlreadyAddRefed.h"
+#include "mozilla/Assertions.h"
+#include "mozilla/BasicEvents.h"
+#include "mozilla/RefPtr.h"
+#include "mozilla/dom/Event.h"
+#include "nsCycleCollectionParticipant.h"
+#include "nsISupports.h"
+#include "nsStringFwd.h"
+#include "nsTArray.h"
+
+namespace mozilla::dom {
+
+class BrowsingContext;
+struct MessageEventInit;
+class MessagePort;
+class OwningWindowProxyOrMessagePortOrServiceWorker;
+class ServiceWorker;
+class WindowProxyOrMessagePortOrServiceWorker;
+
+/**
+ * Implements the MessageEvent event, used for cross-document messaging and
+ * server-sent events.
+ *
+ * See http://www.whatwg.org/specs/web-apps/current-work/#messageevent for
+ * further details.
+ */
+class MessageEvent final : public Event {
+ public:
+ MessageEvent(EventTarget* aOwner, nsPresContext* aPresContext,
+ WidgetEvent* aEvent);
+
+ NS_DECL_ISUPPORTS_INHERITED
+ NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(MessageEvent, Event)
+
+ JSObject* WrapObjectInternal(JSContext* aCx,
+ JS::Handle<JSObject*> aGivenProto) override;
+
+ MessageEvent* AsMessageEvent() override { return this; }
+
+ void GetData(JSContext* aCx, JS::MutableHandle<JS::Value> aData,
+ ErrorResult& aRv);
+ void GetOrigin(nsAString&) const;
+ void GetLastEventId(nsAString&) const;
+ void GetSource(
+ Nullable<OwningWindowProxyOrMessagePortOrServiceWorker>& aValue) const;
+
+ void GetPorts(nsTArray<RefPtr<MessagePort>>& aPorts);
+
+ static already_AddRefed<MessageEvent> Constructor(
+ const GlobalObject& aGlobal, const nsAString& aType,
+ const MessageEventInit& aEventInit);
+
+ static already_AddRefed<MessageEvent> Constructor(
+ EventTarget* aEventTarget, const nsAString& aType,
+ const MessageEventInit& aEventInit);
+
+ void InitMessageEvent(
+ JSContext* aCx, const nsAString& aType, bool aCanBubble, bool aCancelable,
+ JS::Handle<JS::Value> aData, const nsAString& aOrigin,
+ const nsAString& aLastEventId,
+ const Nullable<WindowProxyOrMessagePortOrServiceWorker>& aSource,
+ const Sequence<OwningNonNull<MessagePort>>& aPorts) {
+ InitMessageEvent(aCx, aType, aCanBubble ? CanBubble::eYes : CanBubble::eNo,
+ aCancelable ? Cancelable::eYes : Cancelable::eNo, aData,
+ aOrigin, aLastEventId, aSource, aPorts);
+ }
+
+ void InitMessageEvent(
+ JSContext* aCx, const nsAString& aType, mozilla::CanBubble,
+ mozilla::Cancelable, JS::Handle<JS::Value> aData,
+ const nsAString& aOrigin, const nsAString& aLastEventId,
+ const Nullable<WindowProxyOrMessagePortOrServiceWorker>& aSource,
+ const Sequence<OwningNonNull<MessagePort>>& aPorts);
+
+ protected:
+ ~MessageEvent();
+
+ private:
+ JS::Heap<JS::Value> mData;
+ nsString mOrigin;
+ nsString mLastEventId;
+ RefPtr<BrowsingContext> mWindowSource;
+ RefPtr<MessagePort> mPortSource;
+ RefPtr<ServiceWorker> mServiceWorkerSource;
+
+ nsTArray<RefPtr<MessagePort>> mPorts;
+};
+
+} // namespace mozilla::dom
+
+#endif // mozilla_dom_MessageEvent_h_