mirror of
https://github.com/classilla/tenfourfox.git
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199 lines
6.1 KiB
C
199 lines
6.1 KiB
C
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef WebSocket_h__
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#define WebSocket_h__
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#include "mozilla/Attributes.h"
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#include "mozilla/dom/TypedArray.h"
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#include "mozilla/dom/WebSocketBinding.h" // for BinaryType
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#include "mozilla/DOMEventTargetHelper.h"
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#include "mozilla/ErrorResult.h"
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#include "nsAutoPtr.h"
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#include "nsCOMPtr.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsISupports.h"
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#include "nsISupportsUtils.h"
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#include "nsString.h"
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#include "nsWrapperCache.h"
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#define DEFAULT_WS_SCHEME_PORT 80
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#define DEFAULT_WSS_SCHEME_PORT 443
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class nsIInputStream;
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namespace mozilla {
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namespace dom {
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class Blob;
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class WebSocketImpl;
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class WebSocket final : public DOMEventTargetHelper
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{
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friend class WebSocketImpl;
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public:
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enum {
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CONNECTING = 0,
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OPEN = 1,
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CLOSING = 2,
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CLOSED = 3
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};
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public:
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_SKIPPABLE_SCRIPT_HOLDER_CLASS_INHERITED(
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WebSocket, DOMEventTargetHelper)
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// EventTarget
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virtual void EventListenerAdded(nsIAtom* aType) override;
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virtual void EventListenerRemoved(nsIAtom* aType) override;
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virtual void DisconnectFromOwner() override;
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// nsWrapperCache
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nsPIDOMWindow* GetParentObject() { return GetOwner(); }
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virtual JSObject* WrapObject(JSContext* cx, JS::Handle<JSObject*> aGivenProto) override;
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public: // static helpers:
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// Determine if preferences allow WebSocket
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static bool PrefEnabled(JSContext* aCx = nullptr, JSObject* aGlobal = nullptr);
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public: // WebIDL interface:
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// Constructor:
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static already_AddRefed<WebSocket> Constructor(const GlobalObject& aGlobal,
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const nsAString& aUrl,
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ErrorResult& rv);
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static already_AddRefed<WebSocket> Constructor(const GlobalObject& aGlobal,
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const nsAString& aUrl,
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const nsAString& aProtocol,
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ErrorResult& rv);
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static already_AddRefed<WebSocket> Constructor(const GlobalObject& aGlobal,
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const nsAString& aUrl,
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const Sequence<nsString>& aProtocols,
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ErrorResult& rv);
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// webIDL: readonly attribute DOMString url
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void GetUrl(nsAString& aResult);
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// webIDL: readonly attribute unsigned short readyState;
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uint16_t ReadyState();
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// webIDL: readonly attribute unsigned long bufferedAmount;
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uint32_t BufferedAmount() const;
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// webIDL: attribute Function? onopen;
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IMPL_EVENT_HANDLER(open)
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// webIDL: attribute Function? onerror;
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IMPL_EVENT_HANDLER(error)
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// webIDL: attribute Function? onclose;
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IMPL_EVENT_HANDLER(close)
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// webIDL: readonly attribute DOMString extensions;
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void GetExtensions(nsAString& aResult);
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// webIDL: readonly attribute DOMString protocol;
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void GetProtocol(nsAString& aResult);
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// webIDL: void close(optional unsigned short code, optional DOMString reason):
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void Close(const Optional<uint16_t>& aCode,
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const Optional<nsAString>& aReason,
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ErrorResult& aRv);
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// webIDL: attribute Function? onmessage;
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IMPL_EVENT_HANDLER(message)
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// webIDL: attribute DOMString binaryType;
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dom::BinaryType BinaryType() const;
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void SetBinaryType(dom::BinaryType aData);
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// webIDL: void send(DOMString|Blob|ArrayBufferView data);
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void Send(const nsAString& aData,
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ErrorResult& aRv);
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void Send(Blob& aData,
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ErrorResult& aRv);
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void Send(const ArrayBuffer& aData,
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ErrorResult& aRv);
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void Send(const ArrayBufferView& aData,
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ErrorResult& aRv);
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private: // constructor && distructor
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explicit WebSocket(nsPIDOMWindow* aOwnerWindow);
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virtual ~WebSocket();
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void SetReadyState(uint16_t aReadyState);
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// These methods actually do the dispatch for various events.
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nsresult CreateAndDispatchSimpleEvent(const nsAString& aName);
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nsresult CreateAndDispatchMessageEvent(const nsACString& aData,
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bool aIsBinary);
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nsresult CreateAndDispatchMessageEvent(JSContext* aCx,
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const nsACString& aData,
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bool aIsBinary);
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nsresult CreateAndDispatchCloseEvent(bool aWasClean,
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uint16_t aCode,
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const nsAString& aReason);
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// if there are "strong event listeners" (see comment in WebSocket.cpp) or
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// outgoing not sent messages then this method keeps the object alive
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// when js doesn't have strong references to it.
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void UpdateMustKeepAlive();
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// ATTENTION, when calling this method the object can be released
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// (and possibly collected).
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void DontKeepAliveAnyMore();
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private:
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WebSocket(const WebSocket& x) = delete; // prevent bad usage
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WebSocket& operator=(const WebSocket& x) = delete;
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void Send(nsIInputStream* aMsgStream,
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const nsACString& aMsgString,
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uint32_t aMsgLength,
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bool aIsBinary,
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ErrorResult& aRv);
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void AssertIsOnTargetThread() const;
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// Raw pointer because this WebSocketImpl is created, managed and destroyed by
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// WebSocket.
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WebSocketImpl* mImpl;
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bool mIsMainThread;
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bool mKeepingAlive;
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bool mCheckMustKeepAlive;
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uint32_t mOutgoingBufferedAmount;
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// related to the WebSocket constructor steps
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nsString mURI;
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nsString mEffectiveURL; // after redirects
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nsCString mEstablishedExtensions;
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nsCString mEstablishedProtocol;
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dom::BinaryType mBinaryType;
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// This mutex protects mReadyState that is the only variable that is used in
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// different threads.
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mozilla::Mutex mMutex;
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// This value should not be used directly but use ReadyState() instead.
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uint16_t mReadyState;
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};
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} //namespace dom
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} //namespace mozilla
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#endif
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