author Mike Hommey <>
Mon, 05 Dec 2022 22:55:14 +0000
changeset 644697 5b124d86f7a10e7427cd90c9baa026b9831a16e3
parent 563444 bc4560067c8634cc8f0c001e8d0e182400fa7a44
permissions -rw-r--r--
Bug 1803938 - Adjust patches to clang trunk changes. Differential Revision:

/* -*- 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 */

#include "OSPreferences.h"
#include "mozilla/Preferences.h"

#include "mozilla/java/GeckoAppShellWrappers.h"

using namespace mozilla::intl;

OSPreferences::OSPreferences() {}

bool OSPreferences::ReadSystemLocales(nsTArray<nsCString>& aLocaleList) {
  if (!mozilla::jni::IsAvailable()) {
    return false;

  // XXX: Notice, this value may be empty on an early read. In that case
  //     we won't add anything to the return list so that it doesn't get
  //     cached in mSystemLocales.
  auto locales = java::GeckoAppShell::GetDefaultLocales();
  if (locales) {
    for (size_t i = 0; i < locales->Length(); i++) {
      jni::String::LocalRef locale = locales->GetElement(i);
    return true;
  return false;

bool OSPreferences::ReadRegionalPrefsLocales(nsTArray<nsCString>& aLocaleList) {
  // For now we're just taking System Locales since we don't know of any better
  // API for regional prefs.
  return ReadSystemLocales(aLocaleList);

 * Similar to Gtk, Android does not provide a way to customize or format
 * date/time patterns, so we're reusing ICU data here, but we do modify it
 * according to the Android DateFormat is24HourFormat setting.
bool OSPreferences::ReadDateTimePattern(DateTimeFormatStyle aDateStyle,
                                        DateTimeFormatStyle aTimeStyle,
                                        const nsACString& aLocale,
                                        nsACString& aRetVal) {
  if (!mozilla::jni::IsAvailable()) {
    return false;

  nsAutoCString skeleton;
  if (!GetDateTimeSkeletonForStyle(aDateStyle, aTimeStyle, aLocale, skeleton)) {
    return false;

  // Customize the skeleton if necessary to reflect user's 12/24hr pref
  OverrideSkeletonHourCycle(java::GeckoAppShell::GetIs24HourFormat(), skeleton);

  if (!GetPatternForSkeleton(skeleton, aLocale, aRetVal)) {
    return false;

  return true;

void OSPreferences::RemoveObservers() {}