michael@0: /* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
michael@0: /* vim: set ts=2 et sw=2 tw=80: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0:  * You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "AudioChannelServiceChild.h"
michael@0: 
michael@0: #include "base/basictypes.h"
michael@0: 
michael@0: #include "mozilla/Services.h"
michael@0: #include "mozilla/StaticPtr.h"
michael@0: #include "mozilla/unused.h"
michael@0: #include "mozilla/dom/ContentChild.h"
michael@0: #include "mozilla/dom/ContentParent.h"
michael@0: #include "nsIObserverService.h"
michael@0: #include "nsThreadUtils.h"
michael@0: 
michael@0: #ifdef MOZ_WIDGET_GONK
michael@0: #include "SpeakerManagerService.h"
michael@0: #endif
michael@0: 
michael@0: using namespace mozilla;
michael@0: using namespace mozilla::dom;
michael@0: using namespace mozilla::hal;
michael@0: 
michael@0: StaticRefPtr<AudioChannelServiceChild> gAudioChannelServiceChild;
michael@0: 
michael@0: // static
michael@0: AudioChannelService*
michael@0: AudioChannelServiceChild::GetAudioChannelService()
michael@0: {
michael@0:   MOZ_ASSERT(NS_IsMainThread());
michael@0: 
michael@0:   // If we already exist, exit early
michael@0:   if (gAudioChannelServiceChild) {
michael@0:     return gAudioChannelServiceChild;
michael@0:   }
michael@0: 
michael@0:   // Create new instance, register, return
michael@0:   nsRefPtr<AudioChannelServiceChild> service = new AudioChannelServiceChild();
michael@0:   NS_ENSURE_TRUE(service, nullptr);
michael@0: 
michael@0:   gAudioChannelServiceChild = service;
michael@0:   return gAudioChannelServiceChild;
michael@0: }
michael@0: 
michael@0: void
michael@0: AudioChannelServiceChild::Shutdown()
michael@0: {
michael@0:   if (gAudioChannelServiceChild) {
michael@0:     gAudioChannelServiceChild = nullptr;
michael@0:   }
michael@0: }
michael@0: 
michael@0: AudioChannelServiceChild::AudioChannelServiceChild()
michael@0: {
michael@0: }
michael@0: 
michael@0: AudioChannelServiceChild::~AudioChannelServiceChild()
michael@0: {
michael@0: }
michael@0: 
michael@0: AudioChannelState
michael@0: AudioChannelServiceChild::GetState(AudioChannelAgent* aAgent, bool aElementHidden)
michael@0: {
michael@0:   AudioChannelAgentData* data;
michael@0:   if (!mAgents.Get(aAgent, &data)) {
michael@0:     return AUDIO_CHANNEL_STATE_MUTED;
michael@0:   }
michael@0: 
michael@0:   AudioChannelState state = AUDIO_CHANNEL_STATE_MUTED;
michael@0:   bool oldElementHidden = data->mElementHidden;
michael@0: 
michael@0:   UpdateChannelType(data->mChannel, CONTENT_PROCESS_ID_MAIN, aElementHidden,
michael@0:                     oldElementHidden);
michael@0: 
michael@0:   // Update visibility.
michael@0:   data->mElementHidden = aElementHidden;
michael@0: 
michael@0:   ContentChild* cc = ContentChild::GetSingleton();
michael@0:   cc->SendAudioChannelGetState(data->mChannel, aElementHidden, oldElementHidden,
michael@0:                                &state);
michael@0:   data->mState = state;
michael@0:   cc->SendAudioChannelChangedNotification();
michael@0: 
michael@0:   return state;
michael@0: }
michael@0: 
michael@0: void
michael@0: AudioChannelServiceChild::RegisterAudioChannelAgent(AudioChannelAgent* aAgent,
michael@0:                                                     AudioChannel aChannel,
michael@0:                                                     bool aWithVideo)
michael@0: {
michael@0:   AudioChannelService::RegisterAudioChannelAgent(aAgent, aChannel, aWithVideo);
michael@0: 
michael@0:   ContentChild::GetSingleton()->SendAudioChannelRegisterType(aChannel, aWithVideo);
michael@0: 
michael@0:   nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
michael@0:   if (obs) {
michael@0:     obs->NotifyObservers(nullptr, "audio-channel-agent-changed", nullptr);
michael@0:   }
michael@0: }
michael@0: 
michael@0: void
michael@0: AudioChannelServiceChild::UnregisterAudioChannelAgent(AudioChannelAgent* aAgent)
michael@0: {
michael@0:   AudioChannelAgentData *pData;
michael@0:   if (!mAgents.Get(aAgent, &pData)) {
michael@0:     return;
michael@0:   }
michael@0: 
michael@0:   // We need to keep a copy because unregister will remove the
michael@0:   // AudioChannelAgentData object from the hashtable.
michael@0:   AudioChannelAgentData data(*pData);
michael@0: 
michael@0:   AudioChannelService::UnregisterAudioChannelAgent(aAgent);
michael@0: 
michael@0:   ContentChild::GetSingleton()->SendAudioChannelUnregisterType(
michael@0:       data.mChannel, data.mElementHidden, data.mWithVideo);
michael@0: 
michael@0:   nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
michael@0:   if (obs) {
michael@0:     obs->NotifyObservers(nullptr, "audio-channel-agent-changed", nullptr);
michael@0:   }
michael@0: #ifdef MOZ_WIDGET_GONK
michael@0:   bool active = AnyAudioChannelIsActive();
michael@0:   for (uint32_t i = 0; i < mSpeakerManager.Length(); i++) {
michael@0:     mSpeakerManager[i]->SetAudioChannelActive(active);
michael@0:   }
michael@0: #endif
michael@0: }
michael@0: 
michael@0: void
michael@0: AudioChannelServiceChild::SetDefaultVolumeControlChannel(int32_t aChannel,
michael@0:                                                          bool aHidden)
michael@0: {
michael@0:   ContentChild *cc = ContentChild::GetSingleton();
michael@0:   if (cc) {
michael@0:     cc->SendAudioChannelChangeDefVolChannel(aChannel, aHidden);
michael@0:   }
michael@0: }