/* -*- 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_BroadcastChannel_h #define mozilla_dom_BroadcastChannel_h #include "mozilla/Attributes.h" #include "mozilla/DOMEventTargetHelper.h" #include "nsAutoPtr.h" #include "nsIIPCBackgroundChildCreateCallback.h" #include "nsIObserver.h" #include "nsTArray.h" #include "mozilla/RefPtr.h" class nsPIDOMWindowInner; namespace mozilla { namespace ipc { class PrincipalInfo; } // namespace ipc namespace dom { namespace workers { class WorkerHolder; } // namespace workers class BroadcastChannelChild; class BroadcastChannelMessage; class BroadcastChannel final : public DOMEventTargetHelper , public nsIIPCBackgroundChildCreateCallback , public nsIObserver { friend class BroadcastChannelChild; NS_DECL_NSIIPCBACKGROUNDCHILDCREATECALLBACK NS_DECL_NSIOBSERVER typedef mozilla::ipc::PrincipalInfo PrincipalInfo; public: NS_DECL_ISUPPORTS_INHERITED NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(BroadcastChannel, DOMEventTargetHelper) virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override; static already_AddRefed<BroadcastChannel> Constructor(const GlobalObject& aGlobal, const nsAString& aChannel, ErrorResult& aRv); void GetName(nsAString& aName) const { aName = mChannel; } void PostMessage(JSContext* aCx, JS::Handle<JS::Value> aMessage, ErrorResult& aRv); void Close(); EventHandlerNonNull* GetOnmessage(); void SetOnmessage(EventHandlerNonNull* aCallback); using nsIDOMEventTarget::AddEventListener; using nsIDOMEventTarget::RemoveEventListener; virtual void AddEventListener(const nsAString& aType, EventListener* aCallback, const AddEventListenerOptionsOrBoolean& aOptions, const Nullable<bool>& aWantsUntrusted, ErrorResult& aRv) override; virtual void RemoveEventListener(const nsAString& aType, EventListener* aCallback, const EventListenerOptionsOrBoolean& aOptions, ErrorResult& aRv) override; void Shutdown(); private: BroadcastChannel(nsPIDOMWindowInner* aWindow, const PrincipalInfo& aPrincipalInfo, const nsACString& aOrigin, const nsAString& aChannel); ~BroadcastChannel(); void PostMessageData(BroadcastChannelMessage* aData); void PostMessageInternal(JSContext* aCx, JS::Handle<JS::Value> aMessage, ErrorResult& aRv); void UpdateMustKeepAlive(); bool IsCertainlyAliveForCC() const override { return mIsKeptAlive; } void RemoveDocFromBFCache(); RefPtr<BroadcastChannelChild> mActor; nsTArray<RefPtr<BroadcastChannelMessage>> mPendingMessages; nsAutoPtr<workers::WorkerHolder> mWorkerHolder; nsAutoPtr<PrincipalInfo> mPrincipalInfo; nsCString mOrigin; nsString mChannel; bool mIsKeptAlive; uint64_t mInnerID; enum { StateActive, StateClosing, StateClosed } mState; }; } // namespace dom } // namespace mozilla #endif // mozilla_dom_BroadcastChannel_h