Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 318 insertions, 0 deletions

diff --git a/intl/locale/windows/OSPreferences_win.cpp b/intl/locale/windows/OSPreferences_win.cpp
new file mode 100644
index 0000000000..d790be7202
--- /dev/null
+++ b/intl/locale/windows/OSPreferences_win.cpp
@@ -0,0 +1,318 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "OSPreferences.h"
+#include "mozilla/intl/Locale.h"
+#include "mozilla/intl/LocaleService.h"
+#include "nsReadableUtils.h"
+
+#include <windows.h>
+
+#ifndef __MINGW32__  // WinRT headers not yet supported by MinGW
+#  include <roapi.h>
+#  include <wrl.h>
+#  include <Windows.System.UserProfile.h>
+
+using namespace Microsoft::WRL;
+using namespace Microsoft::WRL::Wrappers;
+using namespace ABI::Windows::Foundation::Collections;
+using namespace ABI::Windows::System::UserProfile;
+#endif
+
+using namespace mozilla::intl;
+
+OSPreferences::OSPreferences() {}
+
+bool OSPreferences::ReadSystemLocales(nsTArray<nsCString>& aLocaleList) {
+  MOZ_ASSERT(aLocaleList.IsEmpty());
+
+#ifndef __MINGW32__
+  // Try to get language list from GlobalizationPreferences; if this fails,
+  // we'll fall back to GetUserPreferredUILanguages.
+  // Per MSDN, these APIs are not available prior to Win8.
+  ComPtr<IGlobalizationPreferencesStatics> globalizationPrefs;
+  ComPtr<IVectorView<HSTRING>> languages;
+  uint32_t count;
+  if (SUCCEEDED(RoGetActivationFactory(
+          HStringReference(
+              RuntimeClass_Windows_System_UserProfile_GlobalizationPreferences)
+              .Get(),
+          IID_PPV_ARGS(&globalizationPrefs))) &&
+      SUCCEEDED(globalizationPrefs->get_Languages(&languages)) &&
+      SUCCEEDED(languages->get_Size(&count))) {
+    for (uint32_t i = 0; i < count; ++i) {
+      HString lang;
+      if (SUCCEEDED(languages->GetAt(i, lang.GetAddressOf()))) {
+        unsigned int length;
+        const wchar_t* text = lang.GetRawBuffer(&length);
+        NS_LossyConvertUTF16toASCII loc(text, length);
+        if (CanonicalizeLanguageTag(loc)) {
+          if (!loc.Contains('-')) {
+            // DirectWrite font-name code doesn't like to be given a bare
+            // language code with no region subtag, but the
+            // GlobalizationPreferences API may give us one (e.g. "ja").
+            // So if there's no hyphen in the string at this point, we use
+            // AddLikelySubtags to get a suitable region code to
+            // go with it.
+            Locale locale;
+            auto result = LocaleParser::TryParse(loc, locale);
+            if (result.isOk() && locale.AddLikelySubtags().isOk() &&
+                locale.Region().Present()) {
+              loc.Append('-');
+              loc.Append(locale.Region().Span());
+            }
+          }
+          aLocaleList.AppendElement(loc);
+        }
+      }
+    }
+  }
+#endif
+
+  // Per MSDN, GetUserPreferredUILanguages is available from Vista onwards,
+  // so we can use it unconditionally (although it may not work well!)
+  if (aLocaleList.IsEmpty()) {
+    // Note that according to the questioner at
+    // https://stackoverflow.com/questions/52849233/getuserpreferreduilanguages-never-returns-more-than-two-languages,
+    // this may not always return the full list of languages we'd expect.
+    // We should always get at least the first-preference lang, though.
+    ULONG numLanguages = 0;
+    DWORD cchLanguagesBuffer = 0;
+    if (!GetUserPreferredUILanguages(MUI_LANGUAGE_NAME, &numLanguages, nullptr,
+                                     &cchLanguagesBuffer)) {
+      return false;
+    }
+
+    AutoTArray<WCHAR, 64> locBuffer;
+    locBuffer.SetCapacity(cchLanguagesBuffer);
+    if (!GetUserPreferredUILanguages(MUI_LANGUAGE_NAME, &numLanguages,
+                                     locBuffer.Elements(),
+                                     &cchLanguagesBuffer)) {
+      return false;
+    }
+
+    const WCHAR* start = locBuffer.Elements();
+    const WCHAR* bufEnd = start + cchLanguagesBuffer;
+    while (bufEnd - start > 1 && *start) {
+      const WCHAR* end = start + 1;
+      while (bufEnd - end > 1 && *end) {
+        end++;
+      }
+      NS_LossyConvertUTF16toASCII loc(start, end - start);
+      if (CanonicalizeLanguageTag(loc)) {
+        aLocaleList.AppendElement(loc);
+      }
+      start = end + 1;
+    }
+  }
+
+  return !aLocaleList.IsEmpty();
+}
+
+bool OSPreferences::ReadRegionalPrefsLocales(nsTArray<nsCString>& aLocaleList) {
+  MOZ_ASSERT(aLocaleList.IsEmpty());
+
+  WCHAR locale[LOCALE_NAME_MAX_LENGTH];
+  if (NS_WARN_IF(!LCIDToLocaleName(LOCALE_USER_DEFAULT, locale,
+                                   LOCALE_NAME_MAX_LENGTH, 0))) {
+    return false;
+  }
+
+  NS_LossyConvertUTF16toASCII loc(locale);
+
+  if (CanonicalizeLanguageTag(loc)) {
+    aLocaleList.AppendElement(loc);
+    return true;
+  }
+  return false;
+}
+
+static LCTYPE ToDateLCType(OSPreferences::DateTimeFormatStyle aFormatStyle) {
+  switch (aFormatStyle) {
+    case OSPreferences::DateTimeFormatStyle::None:
+      return LOCALE_SLONGDATE;
+    case OSPreferences::DateTimeFormatStyle::Short:
+      return LOCALE_SSHORTDATE;
+    case OSPreferences::DateTimeFormatStyle::Medium:
+      return LOCALE_SSHORTDATE;
+    case OSPreferences::DateTimeFormatStyle::Long:
+      return LOCALE_SLONGDATE;
+    case OSPreferences::DateTimeFormatStyle::Full:
+      return LOCALE_SLONGDATE;
+    case OSPreferences::DateTimeFormatStyle::Invalid:
+    default:
+      MOZ_ASSERT_UNREACHABLE("invalid date format");
+      return LOCALE_SLONGDATE;
+  }
+}
+
+static LCTYPE ToTimeLCType(OSPreferences::DateTimeFormatStyle aFormatStyle) {
+  switch (aFormatStyle) {
+    case OSPreferences::DateTimeFormatStyle::None:
+      return LOCALE_STIMEFORMAT;
+    case OSPreferences::DateTimeFormatStyle::Short:
+      return LOCALE_SSHORTTIME;
+    case OSPreferences::DateTimeFormatStyle::Medium:
+      return LOCALE_SSHORTTIME;
+    case OSPreferences::DateTimeFormatStyle::Long:
+      return LOCALE_STIMEFORMAT;
+    case OSPreferences::DateTimeFormatStyle::Full:
+      return LOCALE_STIMEFORMAT;
+    case OSPreferences::DateTimeFormatStyle::Invalid:
+    default:
+      MOZ_ASSERT_UNREACHABLE("invalid time format");
+      return LOCALE_STIMEFORMAT;
+  }
+}
+
+/**
+ * Windows API includes regional preferences from the user only
+ * if we pass empty locale string or if the locale string matches
+ * the current locale.
+ *
+ * Since Windows API only allows us to retrieve two options - short/long
+ * we map it to our four options as:
+ *
+ *   short  -> short
+ *   medium -> short
+ *   long   -> long
+ *   full   -> long
+ *
+ * In order to produce a single date/time format, we use CLDR pattern
+ * for combined date/time string, since Windows API does not provide an
+ * option for this.
+ */
+bool OSPreferences::ReadDateTimePattern(DateTimeFormatStyle aDateStyle,
+                                        DateTimeFormatStyle aTimeStyle,
+                                        const nsACString& aLocale,
+                                        nsACString& aRetVal) {
+  nsAutoString localeName;
+  CopyASCIItoUTF16(aLocale, localeName);
+
+  bool isDate = aDateStyle != DateTimeFormatStyle::None &&
+                aDateStyle != DateTimeFormatStyle::Invalid;
+  bool isTime = aTimeStyle != DateTimeFormatStyle::None &&
+                aTimeStyle != DateTimeFormatStyle::Invalid;
+
+  // If both date and time are wanted, we'll initially read them into a
+  // local string, and then insert them into the overall date+time pattern;
+  nsAutoString str;
+  if (isDate && isTime) {
+    if (!GetDateTimeConnectorPattern(aLocale, aRetVal)) {
+      NS_WARNING("failed to get date/time connector");
+      aRetVal.AssignLiteral("{1} {0}");
+    }
+  } else if (!isDate && !isTime) {
+    aRetVal.Truncate(0);
+    return true;
+  }
+
+  if (isDate) {
+    LCTYPE lcType = ToDateLCType(aDateStyle);
+    size_t len = GetLocaleInfoEx(
+        reinterpret_cast<const wchar_t*>(localeName.BeginReading()), lcType,
+        nullptr, 0);
+    if (len == 0) {
+      return false;
+    }
+
+    // We're doing it to ensure the terminator will fit when Windows writes the
+    // data to its output buffer. See bug 1358159 for details.
+    str.SetLength(len);
+    GetLocaleInfoEx(reinterpret_cast<const wchar_t*>(localeName.BeginReading()),
+                    lcType, (WCHAR*)str.BeginWriting(), len);
+    str.SetLength(len - 1);  // -1 because len counts the null terminator
+
+    // Windows uses "ddd" and "dddd" for abbreviated and full day names
+    // respectively,
+    //   https://msdn.microsoft.com/en-us/library/windows/desktop/dd317787(v=vs.85).aspx
+    // but in a CLDR/ICU-style pattern these should be "EEE" and "EEEE".
+    //   http://userguide.icu-project.org/formatparse/datetime
+    // So we fix that up here.
+    nsAString::const_iterator start, pos, end;
+    start = str.BeginReading(pos);
+    str.EndReading(end);
+    if (FindInReadable(u"dddd"_ns, pos, end)) {
+      str.ReplaceLiteral(pos - start, 4, u"EEEE");
+    } else {
+      pos = start;
+      if (FindInReadable(u"ddd"_ns, pos, end)) {
+        str.ReplaceLiteral(pos - start, 3, u"EEE");
+      }
+    }
+
+    // Also, Windows uses lowercase "g" or "gg" for era, but ICU wants uppercase
+    // "G" (it would interpret "g" as "modified Julian day"!). So fix that.
+    int32_t index = str.FindChar('g');
+    if (index >= 0) {
+      str.Replace(index, 1, 'G');
+      // If it was a double "gg", just drop the second one.
+      index++;
+      if (str.CharAt(index) == 'g') {
+        str.Cut(index, 1);
+      }
+    }
+
+    // If time was also requested, we need to substitute the date pattern from
+    // Windows into the date+time format that we have in aRetVal.
+    if (isTime) {
+      nsACString::const_iterator start, pos, end;
+      start = aRetVal.BeginReading(pos);
+      aRetVal.EndReading(end);
+      if (FindInReadable("{1}"_ns, pos, end)) {
+        aRetVal.Replace(pos - start, 3, NS_ConvertUTF16toUTF8(str));
+      }
+    } else {
+      aRetVal = NS_ConvertUTF16toUTF8(str);
+    }
+  }
+
+  if (isTime) {
+    LCTYPE lcType = ToTimeLCType(aTimeStyle);
+    size_t len = GetLocaleInfoEx(
+        reinterpret_cast<const wchar_t*>(localeName.BeginReading()), lcType,
+        nullptr, 0);
+    if (len == 0) {
+      return false;
+    }
+
+    // We're doing it to ensure the terminator will fit when Windows writes the
+    // data to its output buffer. See bug 1358159 for details.
+    str.SetLength(len);
+    GetLocaleInfoEx(reinterpret_cast<const wchar_t*>(localeName.BeginReading()),
+                    lcType, (WCHAR*)str.BeginWriting(), len);
+    str.SetLength(len - 1);
+
+    // Windows uses "t" or "tt" for a "time marker" (am/pm indicator),
+    //   https://msdn.microsoft.com/en-us/library/windows/desktop/dd318148(v=vs.85).aspx
+    // but in a CLDR/ICU-style pattern that should be "a".
+    //   http://userguide.icu-project.org/formatparse/datetime
+    // So we fix that up here.
+    int32_t index = str.FindChar('t');
+    if (index >= 0) {
+      str.Replace(index, 1, 'a');
+      index++;
+      if (str.CharAt(index) == 't') {
+        str.Cut(index, 1);
+      }
+    }
+
+    if (isDate) {
+      nsACString::const_iterator start, pos, end;
+      start = aRetVal.BeginReading(pos);
+      aRetVal.EndReading(end);
+      if (FindInReadable("{0}"_ns, pos, end)) {
+        aRetVal.Replace(pos - start, 3, NS_ConvertUTF16toUTF8(str));
+      }
+    } else {
+      aRetVal = NS_ConvertUTF16toUTF8(str);
+    }
+  }
+
+  return true;
+}
+
+void OSPreferences::RemoveObservers() {}