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/* -*- 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 <locale.h>
#include "mozilla/intl/Locale.h"
#include "OSPreferences.h"
#include "nsServiceManagerUtils.h"
#include "nsIGSettingsService.h"
using namespace mozilla;
using namespace mozilla::intl;
OSPreferences::OSPreferences() = default;
bool OSPreferences::ReadSystemLocales(nsTArray<nsCString>& aLocaleList) {
MOZ_ASSERT(aLocaleList.IsEmpty());
nsAutoCString defaultLang(Locale::GetDefaultLocale());
if (CanonicalizeLanguageTag(defaultLang)) {
aLocaleList.AppendElement(defaultLang);
return true;
}
return false;
}
bool OSPreferences::ReadRegionalPrefsLocales(nsTArray<nsCString>& aLocaleList) {
MOZ_ASSERT(aLocaleList.IsEmpty());
// For now we're just taking the LC_TIME from POSIX environment for all
// regional preferences.
nsAutoCString localeStr(setlocale(LC_TIME, nullptr));
if (CanonicalizeLanguageTag(localeStr)) {
aLocaleList.AppendElement(localeStr);
return true;
}
return false;
}
/*
* This looks up into gtk settings for hourCycle format.
*
* This works for all GUIs that use gtk settings like Gnome, Elementary etc.
*
* We're taking the current 12/24h settings irrelevant of the locale, because
* in the UI user selects this setting for all locales.
*/
static int HourCycle() {
nsCOMPtr<nsIGSettingsService> gsettings =
do_GetService(NS_GSETTINGSSERVICE_CONTRACTID);
if (!gsettings) {
return 0;
}
nsCOMPtr<nsIGSettingsCollection> desktop_settings;
gsettings->GetCollectionForSchema("org.gnome.desktop.interface"_ns,
getter_AddRefs(desktop_settings));
if (!desktop_settings) {
return 0;
}
nsAutoCString result;
desktop_settings->GetString("clock-format"_ns, result);
if (result == "12h") {
return 12;
}
if (result == "24h") {
return 24;
}
return 0;
}
/**
* Since Gtk does not provide a way to customize or format date/time patterns,
* we're reusing ICU data here, but we do modify it according to the only
* setting Gtk gives us - hourCycle.
*
* This means that for gtk we will return a pattern from ICU altered to
* represent h12/h24 hour cycle if the user modified the default value.
*
* In short, this should work like this:
*
* * gtk defaults, pl: 24h
* * gtk defaults, en: 12h
*
* * gtk 12h, pl: 12h
* * gtk 12h, en: 12h
*
* * gtk 24h, pl: 24h
* * gtk 12h, en: 12h
*/
bool OSPreferences::ReadDateTimePattern(DateTimeFormatStyle aDateStyle,
DateTimeFormatStyle aTimeStyle,
const nsACString& aLocale,
nsACString& aRetVal) {
nsAutoCString skeleton;
if (!GetDateTimeSkeletonForStyle(aDateStyle, aTimeStyle, aLocale, skeleton)) {
return false;
}
// Customize the skeleton if necessary to reflect user's 12/24hr pref
int hourCycle = HourCycle();
if (hourCycle == 12 || hourCycle == 24) {
OverrideSkeletonHourCycle(hourCycle == 24, skeleton);
}
if (!GetPatternForSkeleton(skeleton, aLocale, aRetVal)) {
return false;
}
return true;
}
void OSPreferences::RemoveObservers() {}
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