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82 lines
2.3 KiB
C++
82 lines
2.3 KiB
C++
// Copyright 2013 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "flutter/shell/platform/windows/system_utils.h"
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#include <Windows.h>
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#include <sstream>
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#include "flutter/shell/platform/windows/string_conversion.h"
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namespace flutter {
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std::vector<LanguageInfo> GetPreferredLanguageInfo() {
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std::vector<std::wstring> languages = GetPreferredLanguages();
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std::vector<LanguageInfo> language_info;
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for (auto language : languages) {
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language_info.push_back(ParseLanguageName(language));
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}
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return language_info;
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}
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std::vector<std::wstring> GetPreferredLanguages() {
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std::vector<std::wstring> languages;
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// TODO(clarkezone) need to implement a complete version of this function in
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// order to get full list of platform languages
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// https://github.com/flutter/flutter/issues/74156
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languages.push_back(L"en-US");
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languages.push_back(L"en");
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return languages;
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}
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LanguageInfo ParseLanguageName(std::wstring language_name) {
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LanguageInfo info;
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// Split by '-', discarding any suplemental language info (-x-foo).
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std::vector<std::string> components;
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std::istringstream stream(Utf8FromUtf16(language_name));
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std::string component;
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while (getline(stream, component, '-')) {
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if (component == "x") {
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break;
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}
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components.push_back(component);
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}
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// Determine which components are which.
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info.language = components[0];
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if (components.size() == 3) {
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info.script = components[1];
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info.region = components[2];
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} else if (components.size() == 2) {
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// A script code will always be four characters long.
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if (components[1].size() == 4) {
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info.script = components[1];
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} else {
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info.region = components[1];
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}
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}
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return info;
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}
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std::wstring GetUserTimeFormat() {
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// Rather than do the call-allocate-call-free dance, just use a sufficiently
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// large buffer to handle any reasonable time format string.
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const int kBufferSize = 100;
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wchar_t buffer[kBufferSize];
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if (::GetLocaleInfoEx(LOCALE_NAME_USER_DEFAULT, LOCALE_STIMEFORMAT, buffer,
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kBufferSize) == 0) {
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return std::wstring();
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}
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return std::wstring(buffer, kBufferSize);
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}
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bool Prefer24HourTime(std::wstring time_format) {
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return time_format.find(L"H") != std::wstring::npos;
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}
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} // namespace flutter
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