mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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142 lines
4.3 KiB
C++
142 lines
4.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
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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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef NSDOMMEDIASTREAM_H_
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#define NSDOMMEDIASTREAM_H_
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#include "nsIDOMMediaStream.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsIPrincipal.h"
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#include "nsWrapperCache.h"
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#include "nsIDOMWindow.h"
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class nsXPCClassInfo;
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// GetCurrentTime is defined in winbase.h as zero argument macro forwarding to
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// GetTickCount() and conflicts with NS_DECL_NSIDOMMEDIASTREAM, containing
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// currentTime getter.
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#ifdef GetCurrentTime
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#undef GetCurrentTime
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#endif
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// X11 has a #define for CurrentTime. Unbelievable :-(.
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#ifdef CurrentTime
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#undef CurrentTime
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#endif
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namespace mozilla {
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class MediaStream;
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/**
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* DOM wrapper for MediaStreams.
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*/
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class DOMMediaStream : public nsIDOMMediaStream,
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public nsWrapperCache
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{
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friend class DOMLocalMediaStream;
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public:
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DOMMediaStream() : mStream(nullptr), mHintContents(0)
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{
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SetIsDOMBinding();
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}
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virtual ~DOMMediaStream();
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NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(DOMMediaStream)
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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nsIDOMWindow* GetParentObject() const
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{
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return mWindow;
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}
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virtual JSObject* WrapObject(JSContext* aCx, JSObject* aScope, bool* aTriedToWrap);
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double CurrentTime();
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MediaStream* GetStream() { return mStream; }
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bool IsFinished();
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/**
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* Returns a principal indicating who may access this stream. The stream contents
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* can only be accessed by principals subsuming this principal.
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*/
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nsIPrincipal* GetPrincipal() { return mPrincipal; }
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/**
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* Indicate that data will be contributed to this stream from origin aPrincipal.
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* If aPrincipal is null, this is ignored. Otherwise, from now on the contents
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* of this stream can only be accessed by principals that subsume aPrincipal.
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* Returns true if the stream's principal changed.
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*/
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bool CombineWithPrincipal(nsIPrincipal* aPrincipal);
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/**
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* Create an nsDOMMediaStream whose underlying stream is a SourceMediaStream.
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*/
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static already_AddRefed<DOMMediaStream>
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CreateSourceStream(nsIDOMWindow* aWindow, uint32_t aHintContents);
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// Hints to tell the SDP generator about whether this
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// MediaStream probably has audio and/or video
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enum {
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HINT_CONTENTS_AUDIO = 0x00000001U,
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HINT_CONTENTS_VIDEO = 0x00000002U
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};
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uint32_t GetHintContents() const { return mHintContents; }
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void SetHintContents(uint32_t aHintContents) { mHintContents = aHintContents; }
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/**
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* Create an nsDOMMediaStream whose underlying stream is a TrackUnionStream.
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*/
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static already_AddRefed<DOMMediaStream>
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CreateTrackUnionStream(nsIDOMWindow* aWindow, uint32_t aHintContents = 0);
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protected:
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void InitSourceStream(nsIDOMWindow* aWindow, uint32_t aHintContents);
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void InitTrackUnionStream(nsIDOMWindow* aWindow, uint32_t aHintContents);
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// We need this to track our parent object.
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nsCOMPtr<nsIDOMWindow> mWindow;
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// MediaStream is owned by the graph, but we tell it when to die, and it won't
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// die until we let it.
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MediaStream* mStream;
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// Principal identifying who may access the contents of this stream.
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// If null, this stream can be used by anyone because it has no content yet.
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nsCOMPtr<nsIPrincipal> mPrincipal;
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// tells the SDP generator about whether this
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// MediaStream probably has audio and/or video
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uint32_t mHintContents;
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};
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class DOMLocalMediaStream : public DOMMediaStream,
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public nsIDOMLocalMediaStream
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{
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public:
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DOMLocalMediaStream() {}
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virtual ~DOMLocalMediaStream();
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NS_DECL_ISUPPORTS_INHERITED
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virtual JSObject* WrapObject(JSContext* aCx, JSObject* aScope, bool* aTriedToWrap);
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virtual void Stop();
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/**
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* Create an nsDOMLocalMediaStream whose underlying stream is a SourceMediaStream.
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*/
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static already_AddRefed<DOMLocalMediaStream>
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CreateSourceStream(nsIDOMWindow* aWindow, uint32_t aHintContents);
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/**
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* Create an nsDOMLocalMediaStream whose underlying stream is a TrackUnionStream.
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*/
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static already_AddRefed<DOMLocalMediaStream>
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CreateTrackUnionStream(nsIDOMWindow* aWindow, uint32_t aHintContents = 0);
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};
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}
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#endif /* NSDOMMEDIASTREAM_H_ */
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