Esempio n. 1
0
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;
}
Esempio n. 2
0
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
}
Esempio n. 3
0
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;
}
Esempio n. 4
0
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
}