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/* -*- Mode: C++; tab-width: 8; 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/. */
#ifndef mozilla_dom_MessageEvent_h_
#define mozilla_dom_MessageEvent_h_
#include "mozilla/dom/Event.h"
#include "mozilla/dom/BindingUtils.h"
#include "nsCycleCollectionParticipant.h"
namespace mozilla {
namespace dom {
struct MessageEventInit;
class MessagePort;
class OwningWindowProxyOrMessagePort;
class WindowProxyOrMessagePort;
/**
* 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)
// Forward to base class
NS_FORWARD_TO_EVENT
virtual JSObject* WrapObjectInternal(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
void GetData(JSContext* aCx, JS::MutableHandle<JS::Value> aData,
ErrorResult& aRv);
void GetOrigin(nsAString&) const;
void GetLastEventId(nsAString&) const;
void GetSource(Nullable<OwningWindowProxyOrMessagePort>& aValue) const;
void GetPorts(nsTArray<RefPtr<MessagePort>>& aPorts);
static already_AddRefed<MessageEvent>
Constructor(const GlobalObject& aGlobal,
const nsAString& aType,
const MessageEventInit& aEventInit,
ErrorResult& aRv);
static already_AddRefed<MessageEvent>
Constructor(EventTarget* aEventTarget,
const nsAString& aType,
const MessageEventInit& aEventInit,
ErrorResult& aRv);
void InitMessageEvent(JSContext* aCx, const nsAString& aType, bool aCanBubble,
bool aCancelable, JS::Handle<JS::Value> aData,
const nsAString& aOrigin, const nsAString& aLastEventId,
const Nullable<WindowProxyOrMessagePort>& aSource,
const Sequence<OwningNonNull<MessagePort>>& aPorts);
protected:
~MessageEvent();
private:
JS::Heap<JS::Value> mData;
nsString mOrigin;
nsString mLastEventId;
RefPtr<nsPIDOMWindowInner> mWindowSource;
RefPtr<MessagePort> mPortSource;
nsTArray<RefPtr<MessagePort>> mPorts;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_MessageEvent_h_
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