本文整理汇总了C++中ContentChild::SendIsGMPPresentOnDisk方法的典型用法代码示例。如果您正苦于以下问题：C++ ContentChild::SendIsGMPPresentOnDisk方法的具体用法？C++ ContentChild::SendIsGMPPresentOnDisk怎么用？C++ ContentChild::SendIsGMPPresentOnDisk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ContentChild的用法示例。
在下文中一共展示了ContentChild::SendIsGMPPresentOnDisk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: nsCString
/* static */ bool
MediaKeySystemAccess::IsGMPPresentOnDisk(const nsAString& aKeySystem,
const nsACString& aVersion,
nsACString& aOutMessage)
{
MOZ_ASSERT(NS_IsMainThread());
if (XRE_GetProcessType() != GeckoProcessType_Default) {
// We need to be able to access the filesystem, so call this in the
// main process via ContentChild.
ContentChild* contentChild = ContentChild::GetSingleton();
if (NS_WARN_IF(!contentChild)) {
return false;
}
nsCString message;
bool result = false;
bool ok = contentChild->SendIsGMPPresentOnDisk(nsString(aKeySystem), nsCString(aVersion),
&result, &message);
aOutMessage = message;
return ok && result;
}
bool isPresent = true;
#if XP_WIN
if (IsPrimetimeKeySystem(aKeySystem)) {
if (!AdobePluginDLLExists(aVersion)) {
NS_WARNING("Adobe EME plugin disappeared from disk!");
aOutMessage = NS_LITERAL_CSTRING("Adobe DLL was expected to be on disk but was not");
isPresent = false;
}
if (!AdobePluginVoucherExists(aVersion)) {
NS_WARNING("Adobe EME voucher disappeared from disk!");
aOutMessage = NS_LITERAL_CSTRING("Adobe plugin voucher was expected to be on disk but was not");
isPresent = false;
}
if (!isPresent) {
// Reset the prefs that Firefox's GMP downloader sets, so that
// Firefox will try to download the plugin next time the updater runs.
Preferences::ClearUser("media.gmp-eme-adobe.lastUpdate");
Preferences::ClearUser("media.gmp-eme-adobe.version");
} else if (!EMEVoucherFileExists()) {
// Gecko doesn't have a voucher file for the plugin-container.
// Adobe EME isn't going to work, so don't advertise that it will.
aOutMessage = NS_LITERAL_CSTRING("Plugin-container voucher not present");
isPresent = false;
}
}
#endif
return isPresent;
}