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Bug 1113086 - AudioChannel policy in Browser API - patch 2 - IPC communication between AudioChannelServices, r=ehsan

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This commit is contained in:
Andrea Marchesini 2015-07-10 17:38:46 +01:00 committed by Ehsan Akhgari
parent 16db4ace47
commit 8361c16bda
5 changed files with 172 additions and 14 deletions
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126
dom/audiochannel/AudioChannelService.cpp
View File

@ -85,6 +85,12 @@ GetTopWindow(nsIDOMWindow* aWindow)
return window.forget();
}
bool
IsParentProcess()
{
return XRE_GetProcessType() == GeckoProcessType_Default;
}
} // anonymous namespace
StaticRefPtr<AudioChannelService> gAudioChannelService;
@ -118,7 +124,7 @@ void
AudioChannelService::Shutdown()
{
if (gAudioChannelService) {
if (XRE_GetProcessType() == GeckoProcessType_Default) {
if (IsParentProcess()) {
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
if (obs) {
obs->RemoveObserver(gAudioChannelService, "ipc:content-shutdown");
@ -147,8 +153,11 @@ NS_IMPL_RELEASE(AudioChannelService)
AudioChannelService::AudioChannelService()
: mDisabled(false)
, mDefChannelChildID(CONTENT_PROCESS_ID_UNKNOWN)
, mTelephonyChannel(false)
, mContentOrNormalChannel(false)
, mAnyChannel(false)
{
if (XRE_IsParentProcess()) {
if (IsParentProcess()) {
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
if (obs) {
obs->AddObserver(this, "ipc:content-shutdown", false);
@ -199,6 +208,8 @@ AudioChannelService::RegisterAudioChannelAgent(AudioChannelAgent* aAgent,
NS_LITERAL_STRING("active").get());
}
}
MaybeSendStatusUpdate();
}
void
@ -244,6 +255,8 @@ AudioChannelService::UnregisterAudioChannelAgent(AudioChannelAgent* aAgent)
NS_LITERAL_STRING("inactive").get());
}
}
MaybeSendStatusUpdate();
}
void
@ -296,33 +309,68 @@ AudioChannelService::TelephonyChannelIsActiveEnumerator(
bool* isActive = static_cast<bool*>(aPtr);
*isActive =
aWinData->mChannels[(uint32_t)AudioChannel::Telephony].mNumberOfAgents != 0 &&
!aWinData->mChannels[(uint32_t)AudioChannel::Telephony].mMuted;
!aWinData->mChannels[(uint32_t)AudioChannel::Telephony].mMuted;
return *isActive ? PL_DHASH_STOP : PL_DHASH_NEXT;
}
PLDHashOperator
AudioChannelService::TelephonyChannelIsActiveInChildrenEnumerator(
const uint64_t& aChildID,
nsAutoPtr<AudioChannelChildStatus>& aData,
void* aPtr)
{
bool* isActive = static_cast<bool*>(aPtr);
*isActive = aData->mActiveTelephonyChannel;
return *isActive ? PL_DHASH_STOP : PL_DHASH_NEXT;
}
bool
AudioChannelService::TelephonyChannelIsActive()
{
// TODO: no child process check.
bool active = false;
mWindows.Enumerate(TelephonyChannelIsActiveEnumerator, &active);
if (!active && IsParentProcess()) {
mPlayingChildren.Enumerate(TelephonyChannelIsActiveInChildrenEnumerator,
&active);
}
return active;
}
PLDHashOperator
AudioChannelService::ContentOrNormalChannelIsActiveEnumerator(
const uint64_t& aWindowID,
nsAutoPtr<AudioChannelWindow>& aWinData,
void* aPtr)
{
bool* isActive = static_cast<bool*>(aPtr);
*isActive =
aWinData->mChannels[(uint32_t)AudioChannel::Content].mNumberOfAgents > 0 ||
aWinData->mChannels[(uint32_t)AudioChannel::Normal].mNumberOfAgents > 0;
return *isActive ? PL_DHASH_STOP : PL_DHASH_NEXT;
}
bool
AudioChannelService::ContentOrNormalChannelIsActive()
{
// This method is meant to be used just by the child to send status update.
MOZ_ASSERT(!IsParentProcess());
bool active = false;
mWindows.Enumerate(ContentOrNormalChannelIsActiveEnumerator, &active);
return active;
}
bool
AudioChannelService::ProcessContentOrNormalChannelIsActive(uint64_t aChildID)
{
/* TODO
AudioChannelChildData* data;
if (!mData.Get(aChildID, &data)) {
AudioChannelChildStatus* status = mPlayingChildren.Get(aChildID);
if (!status) {
return false;
}
return data->mChannels[(uint32_t)AudioChannel::Content].mNumberOfAgents != 0 ||
data->mChannels[(uint32_t)AudioChannel::Normal].mNumberOfAgents != 0;
*/
return true;
return status->mActiveContentOrNormalChannel;
}
PLDHashOperator
@ -346,9 +394,13 @@ AudioChannelService::AnyAudioChannelIsActiveEnumerator(
bool
AudioChannelService::AnyAudioChannelIsActive()
{
// TODO: no child process check.
bool active = false;
mWindows.Enumerate(AnyAudioChannelIsActiveEnumerator, &active);
if (!active && IsParentProcess()) {
active = !!mPlayingChildren.Count();
}
return active;
}
@ -441,6 +493,8 @@ AudioChannelService::Observe(nsISupports* aSubject, const char* aTopic,
SetDefaultVolumeControlChannelInternal(-1, false, childID);
mDefChannelChildID = CONTENT_PROCESS_ID_UNKNOWN;
}
mPlayingChildren.Remove(childID);
}
return NS_OK;
@ -680,7 +734,7 @@ AudioChannelService::SetDefaultVolumeControlChannelInternal(int32_t aChannel,
bool aVisible,
uint64_t aChildID)
{
if (XRE_GetProcessType() != GeckoProcessType_Default) {
if (!IsParentProcess()) {
ContentChild* cc = ContentChild::GetSingleton();
if (cc) {
cc->SendAudioChannelChangeDefVolChannel(aChannel, aVisible);
@ -727,6 +781,50 @@ AudioChannelService::SetDefaultVolumeControlChannelInternal(int32_t aChannel,
}
}
void
AudioChannelService::MaybeSendStatusUpdate()
{
if (IsParentProcess()) {
return;
}
bool telephonyChannel = TelephonyChannelIsActive();
bool contentOrNormalChannel = ContentOrNormalChannelIsActive();
bool anyChannel = AnyAudioChannelIsActive();
if (telephonyChannel == mTelephonyChannel &&
contentOrNormalChannel == mContentOrNormalChannel &&
anyChannel == mAnyChannel) {
return;
}
mTelephonyChannel = telephonyChannel;
mContentOrNormalChannel = contentOrNormalChannel;
mAnyChannel = anyChannel;
ContentChild* cc = ContentChild::GetSingleton();
if (cc) {
cc->SendAudioChannelServiceStatus(telephonyChannel, contentOrNormalChannel,
anyChannel);
}
}
void
AudioChannelService::ChildStatusReceived(uint64_t aChildID,
bool aTelephonyChannel,
bool aContentOrNormalChannel,
bool aAnyChannel)
{
if (!aAnyChannel) {
mPlayingChildren.Remove(aChildID);
return;
}
AudioChannelChildStatus* data = mPlayingChildren.LookupOrAdd(aChildID);
data->mActiveTelephonyChannel = aTelephonyChannel;
data->mActiveContentOrNormalChannel = aContentOrNormalChannel;
}
/* static */ PLDHashOperator
AudioChannelService::NotifyEnumerator(AudioChannelAgent* aAgent,
AudioChannel* aAudioChannel,

37
dom/audiochannel/AudioChannelService.h
View File

@ -127,10 +127,17 @@ public:
void Notify(uint64_t aWindowID);
void ChildStatusReceived(uint64_t aChildID, bool aTelephonyChannel,
bool aContentOrNormalChannel, bool aAnyChannel);
private:
AudioChannelService();
~AudioChannelService();
void MaybeSendStatusUpdate();
bool ContentOrNormalChannelIsActive();
/* Send the default-volume-channel-changed notification */
void SetDefaultVolumeControlChannelInternal(int32_t aChannel,
bool aVisible, uint64_t aChildID);
@ -163,6 +170,12 @@ private:
nsAutoPtr<AudioChannelWindow>& aWinData,
void *aPtr);
static PLDHashOperator
ContentOrNormalChannelIsActiveEnumerator(
const uint64_t& aWindowID,
nsAutoPtr<AudioChannelWindow>& aWinData,
void *aPtr);
static PLDHashOperator
AnyAudioChannelIsActiveEnumerator(const uint64_t& aWindowID,
nsAutoPtr<AudioChannelWindow>& aWinData,
@ -180,6 +193,24 @@ private:
nsClassHashtable<nsUint64HashKey, AudioChannelWindow> mWindows;
struct AudioChannelChildStatus final {
AudioChannelChildStatus()
: mActiveTelephonyChannel(false)
, mActiveContentOrNormalChannel(false)
{}
bool mActiveTelephonyChannel;
bool mActiveContentOrNormalChannel;
};
static PLDHashOperator
TelephonyChannelIsActiveInChildrenEnumerator(
const uint64_t& aChildID,
nsAutoPtr<AudioChannelChildStatus>& aData,
void *aPtr);
nsClassHashtable<nsUint64HashKey, AudioChannelChildStatus> mPlayingChildren;
#ifdef MOZ_WIDGET_GONK
nsTArray<SpeakerManagerService*> mSpeakerManager;
#endif
@ -190,6 +221,12 @@ private:
uint64_t mDefChannelChildID;
// These boolean are used to know if we have to send an status update to the
// service running in the main process.
bool mTelephonyChannel;
bool mContentOrNormalChannel;
bool mAnyChannel;
// This is needed for IPC comunication between
// AudioChannelServiceChild and this class.
friend class ContentParent;

14
dom/ipc/ContentParent.cpp
View File

@ -2802,6 +2802,20 @@ ContentParent::RecvAudioChannelChangeDefVolChannel(const int32_t& aChannel,
return true;
}
bool
ContentParent::RecvAudioChannelServiceStatus(
const bool& aTelephonyChannel,
const bool& aContentOrNormalChannel,
const bool& aAnyChannel)
{
nsRefPtr<AudioChannelService> service = AudioChannelService::GetOrCreate();
MOZ_ASSERT(service);
service->ChildStatusReceived(mChildID, aTelephonyChannel,
aContentOrNormalChannel, aAnyChannel);
return true;
}
bool
ContentParent::RecvDataStoreGetStores(
const nsString& aName,

5
dom/ipc/ContentParent.h
View File

@ -754,6 +754,11 @@ private:
virtual bool RecvAudioChannelChangeDefVolChannel(const int32_t& aChannel,
const bool& aHidden) override;
virtual bool RecvAudioChannelServiceStatus(const bool& aTelephonyChannel,
const bool& aContentOrNormalChannel,
const bool& aAnyChannel) override;
virtual bool RecvGetSystemMemory(const uint64_t& getterId) override;
virtual bool RecvGetLookAndFeelCache(nsTArray<LookAndFeelInt>&& aLookAndFeelIntCache) override;

4
dom/ipc/PContent.ipdl
View File

@ -863,6 +863,10 @@ parent:
// Tell the parent that the child has gone idle for the first time
async FirstIdle();
async AudioChannelServiceStatus(bool aActiveTelephonyChannel,
bool aContentOrNormalChannel,
bool aAnyActiveChannel);
async AudioChannelChangeDefVolChannel(int32_t aChannel, bool aHidden);
sync DataStoreGetStores(nsString aName, nsString aOwner, Principal aPrincipal)