| // Copyright 2011 the V8 project authors. All rights reserved. |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following |
| // disclaimer in the documentation and/or other materials provided |
| // with the distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include "src/extensions/experimental/i18n-locale.h" |
| |
| #include "src/extensions/experimental/i18n-utils.h" |
| #include "src/extensions/experimental/language-matcher.h" |
| #include "unicode/locid.h" |
| #include "unicode/uloc.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| const char* const I18NLocale::kLocaleID = "localeID"; |
| const char* const I18NLocale::kRegionID = "regionID"; |
| const char* const I18NLocale::kICULocaleID = "icuLocaleID"; |
| |
| v8::Handle<v8::Value> I18NLocale::JSLocale(const v8::Arguments& args) { |
| v8::HandleScope handle_scope; |
| |
| if (args.Length() != 1 || !args[0]->IsObject()) { |
| return v8::Undefined(); |
| } |
| |
| v8::Local<v8::Object> settings = args[0]->ToObject(); |
| |
| // Get best match for locale. |
| v8::TryCatch try_catch; |
| v8::Handle<v8::Value> locale_id = settings->Get(v8::String::New(kLocaleID)); |
| if (try_catch.HasCaught()) { |
| return v8::Undefined(); |
| } |
| |
| LocaleIDMatch result; |
| if (locale_id->IsArray()) { |
| LanguageMatcher::GetBestMatchForPriorityList( |
| v8::Handle<v8::Array>::Cast(locale_id), &result); |
| } else if (locale_id->IsString()) { |
| LanguageMatcher::GetBestMatchForString(locale_id->ToString(), &result); |
| } else { |
| LanguageMatcher::GetBestMatchForString(v8::String::New(""), &result); |
| } |
| |
| // Get best match for region. |
| char region_id[ULOC_COUNTRY_CAPACITY]; |
| I18NUtils::StrNCopy(region_id, ULOC_COUNTRY_CAPACITY, ""); |
| |
| v8::Handle<v8::Value> region = settings->Get(v8::String::New(kRegionID)); |
| if (try_catch.HasCaught()) { |
| return v8::Undefined(); |
| } |
| |
| if (!GetBestMatchForRegionID(result.icu_id, region, region_id)) { |
| // Set region id to empty string because region couldn't be inferred. |
| I18NUtils::StrNCopy(region_id, ULOC_COUNTRY_CAPACITY, ""); |
| } |
| |
| // Build JavaScript object that contains bcp and icu locale ID and region ID. |
| v8::Handle<v8::Object> locale = v8::Object::New(); |
| locale->Set(v8::String::New(kLocaleID), v8::String::New(result.bcp47_id)); |
| locale->Set(v8::String::New(kICULocaleID), v8::String::New(result.icu_id)); |
| locale->Set(v8::String::New(kRegionID), v8::String::New(region_id)); |
| |
| return handle_scope.Close(locale); |
| } |
| |
| bool I18NLocale::GetBestMatchForRegionID( |
| const char* locale_id, v8::Handle<v8::Value> region_id, char* result) { |
| if (region_id->IsString() && region_id->ToString()->Length() != 0) { |
| icu::Locale user_locale( |
| icu::Locale("und", *v8::String::Utf8Value(region_id->ToString()))); |
| I18NUtils::StrNCopy( |
| result, ULOC_COUNTRY_CAPACITY, user_locale.getCountry()); |
| return true; |
| } |
| // Maximize locale_id to infer the region (e.g. expand "de" to "de-Latn-DE" |
| // and grab "DE" from the result). |
| UErrorCode status = U_ZERO_ERROR; |
| char maximized_locale[ULOC_FULLNAME_CAPACITY]; |
| uloc_addLikelySubtags( |
| locale_id, maximized_locale, ULOC_FULLNAME_CAPACITY, &status); |
| uloc_getCountry(maximized_locale, result, ULOC_COUNTRY_CAPACITY, &status); |
| |
| return !U_FAILURE(status); |
| } |
| |
| } } // namespace v8::internal |