/* -*- 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_audio_channel_agent_h__
#define mozilla_dom_audio_channel_agent_h__
#include "nsIAudioChannelAgent.h"
#include "nsCycleCollectionParticipant.h"
#include "nsCOMPtr.h"
#include "nsIWeakReferenceUtils.h"
class nsPIDOMWindowInner;
class nsPIDOMWindowOuter;
namespace mozilla::dom {
class AudioPlaybackConfig;
/* Header file */
class AudioChannelAgent :
public nsIAudioChannelAgent {
public:
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_NSIAUDIOCHANNELAGENT
NS_DECL_CYCLE_COLLECTION_CLASS(AudioChannelAgent)
AudioChannelAgent();
// nsIAudioChannelAgentCallback MUST call this function after calling
// NotifyStartedPlaying() to require the initial update for
// volume/suspend/audio-capturing which might set before starting the agent.
// Ex. starting the agent in a tab which has been muted before, so the agent
// should apply mute state to its callback.
void PullInitialUpdate();
uint64_t WindowID()
const;
bool IsWindowAudioCapturingEnabled()
const;
bool IsPlayingStarted()
const;
private:
virtual ~AudioChannelAgent();
friend class AudioChannelService;
void WindowVolumeChanged(
float aVolume,
bool aMuted);
void WindowSuspendChanged(nsSuspendedTypes aSuspend);
void WindowAudioCaptureChanged(uint64_t aInnerWindowID,
bool aCapture);
nsPIDOMWindowOuter* Window()
const {
return mWindow; }
uint64_t InnerWindowID()
const;
AudioPlaybackConfig GetMediaConfig()
const;
// Returns mCallback if that's non-null, or otherwise tries to get an
// nsIAudioChannelAgentCallback out of mWeakCallback.
already_AddRefed<nsIAudioChannelAgentCallback> GetCallback();
nsresult InitInternal(nsPIDOMWindowInner* aWindow,
nsIAudioChannelAgentCallback* aCallback,
bool aUseWeakRef);
void Shutdown();
nsresult FindCorrectWindow(nsPIDOMWindowInner* aWindow);
nsCOMPtr<nsPIDOMWindowOuter> mWindow;
nsCOMPtr<nsIAudioChannelAgentCallback> mCallback;
nsWeakPtr mWeakCallback;
uint64_t mInnerWindowID;
bool mIsRegToService;
};
}
// namespace mozilla::dom
#endif
