static nsresult
GetOperatingSystemVersion(nsPresContext* aPresContext, const nsMediaFeature* aFeature,
nsCSSValue& aResult)
{
aResult.Reset();
if (ShouldResistFingerprinting(aPresContext)) {
return NS_OK;
}
#ifdef XP_WIN
int32_t metricResult;
if (NS_SUCCEEDED(
LookAndFeel::GetInt(LookAndFeel::eIntID_OperatingSystemVersionIdentifier,
&metricResult))) {
for (size_t i = 0; i < ArrayLength(osVersionStrings); ++i) {
if (metricResult == osVersionStrings[i].id) {
aResult.SetStringValue(nsDependentString(osVersionStrings[i].name),
eCSSUnit_Ident);
break;
}
}
}
#endif
return NS_OK;
}
static void
GetOperatingSystemVersion(nsIDocument* aDocument, const nsMediaFeature* aFeature,
nsCSSValue& aResult)
{
aResult.Reset();
MOZ_ASSERT(aFeature->mReqFlags & nsMediaFeature::eUserAgentAndChromeOnly);
if (nsContentUtils::ShouldResistFingerprinting(aDocument)) {
return;
}
#ifdef XP_WIN
int32_t metricResult;
if (NS_SUCCEEDED(
LookAndFeel::GetInt(LookAndFeel::eIntID_OperatingSystemVersionIdentifier,
&metricResult))) {
for (size_t i = 0; i < ArrayLength(osVersionStrings); ++i) {
if (metricResult == osVersionStrings[i].id) {
aResult.SetStringValue(nsDependentString(osVersionStrings[i].name),
eCSSUnit_Ident);
break;
}
}
}
#endif
}
static nsresult
GetWindowsTheme(nsPresContext* aPresContext, const nsMediaFeature* aFeature,
nsCSSValue& aResult)
{
aResult.Reset();
if (ShouldResistFingerprinting(aPresContext)) {
return NS_OK;
}
#ifdef XP_WIN
uint8_t windowsThemeId =
nsCSSRuleProcessor::GetWindowsThemeIdentifier();
// Classic mode should fail to match.
if (windowsThemeId == LookAndFeel::eWindowsTheme_Classic)
return NS_OK;
// Look up the appropriate theme string
for (size_t i = 0; i < ArrayLength(themeStrings); ++i) {
if (windowsThemeId == themeStrings[i].id) {
aResult.SetStringValue(nsDependentString(themeStrings[i].name),
eCSSUnit_Ident);
break;
}
}
#endif
return NS_OK;
}
static void
GetWindowsTheme(nsIDocument* aDocument, const nsMediaFeature* aFeature,
nsCSSValue& aResult)
{
aResult.Reset();
MOZ_ASSERT(aFeature->mReqFlags & nsMediaFeature::eUserAgentAndChromeOnly);
if (nsContentUtils::ShouldResistFingerprinting(aDocument)) {
return;
}
#ifdef XP_WIN
uint8_t windowsThemeId = GetWindowsThemeIdentifier();
// Classic mode should fail to match.
if (windowsThemeId == LookAndFeel::eWindowsTheme_Classic)
return;
// Look up the appropriate theme string
for (size_t i = 0; i < ArrayLength(themeStrings); ++i) {
if (windowsThemeId == themeStrings[i].id) {
aResult.SetStringValue(nsDependentString(themeStrings[i].name),
eCSSUnit_Ident);
break;
}
}
#endif
}