本文整理汇总了C++中AudioChannelService::AnyAudioChannelIsActive方法的典型用法代码示例。如果您正苦于以下问题：C++ AudioChannelService::AnyAudioChannelIsActive方法的具体用法？C++ AudioChannelService::AnyAudioChannelIsActive怎么用？C++ AudioChannelService::AnyAudioChannelIsActive使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类AudioChannelService的用法示例。
在下文中一共展示了AudioChannelService::AnyAudioChannelIsActive方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1:
NS_IMETHODIMP
SpeakerManager::HandleEvent(nsIDOMEvent* aEvent)
{
nsAutoString type;
aEvent->GetType(type);
if (!type.EqualsLiteral("visibilitychange")) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIDocShell> docshell = do_GetInterface(GetOwner());
NS_ENSURE_TRUE(docshell, NS_ERROR_FAILURE);
docshell->GetIsActive(&mVisible);
// If an app that has called forcespeaker=true is switched
// from the background to the foreground 'speakerforced'
// switches to true in all apps. I.e. the app doesn't have to
// call forcespeaker=true again when it comes into foreground.
SpeakerManagerService *service =
SpeakerManagerService::GetOrCreateSpeakerManagerService();
MOZ_ASSERT(service);
if (mVisible && mForcespeaker) {
service->ForceSpeaker(mForcespeaker, mVisible);
}
// If an application that has called forcespeaker=true, but no audio is
// currently playing in the app itself, if application switch to
// the background, we switch 'speakerforced' to false.
if (!mVisible && mForcespeaker) {
AudioChannelService* audioChannelService =
AudioChannelService::GetOrCreateAudioChannelService();
if (audioChannelService && !audioChannelService->AnyAudioChannelIsActive()) {
service->ForceSpeaker(false, mVisible);
}
}
return NS_OK;
}