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ICU-20103 Using GetLocaleInfoEx to get user default locale instead of using language for UWP app. (#86)

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This pull request is to remove COM dependency in ICU, so that ICU does not need to care about if the caller is a UWP or not.
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William Zhao 2018-09-07 13:59:03 -07:00 • committed by Shane Carr
parent 71c66bbb0b
commit fcb82cb744
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1 changed files with 9 additions and 57 deletions
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66
icu4c/source/common/putil.cpp
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@ -1703,73 +1703,25 @@ The leftmost codepage (.xxx) wins.
return posixID; return posixID;
#elif U_PLATFORM_USES_ONLY_WIN32_API #elif U_PLATFORM_HAS_WIN32_API
#define POSIX_LOCALE_CAPACITY 64 #define POSIX_LOCALE_CAPACITY 64
UErrorCode status = U_ZERO_ERROR; UErrorCode status = U_ZERO_ERROR;
char *correctedPOSIXLocale = 0; char *correctedPOSIXLocale = nullptr;
// If we have already figured this out just use the cached value // If we have already figured this out just use the cached value
if (gCorrectedPOSIXLocale != NULL) { if (gCorrectedPOSIXLocale != nullptr) {
return gCorrectedPOSIXLocale; return gCorrectedPOSIXLocale;
} }
// No cached value, need to determine the current value // No cached value, need to determine the current value
static WCHAR windowsLocale[LOCALE_NAME_MAX_LENGTH]; static WCHAR windowsLocale[LOCALE_NAME_MAX_LENGTH] = {};
#if U_PLATFORM_HAS_WINUWP_API == 0 int length = GetLocaleInfoEx(LOCALE_NAME_USER_DEFAULT, LOCALE_SNAME, windowsLocale, LOCALE_NAME_MAX_LENGTH);
// If not a Universal Windows App, we'll need user default language.
// Vista and above should use Locale Names instead of LCIDs
int length = GetUserDefaultLocaleName(windowsLocale, UPRV_LENGTHOF(windowsLocale));
#else
// In a UWP app, we want the top language that the application and user agreed upon
ComPtr<ABI::Windows::Foundation::Collections::IVectorView<HSTRING>> languageList;
ComPtr<ABI::Windows::Globalization::IApplicationLanguagesStatics> applicationLanguagesStatics; // Now we should have a Windows locale name that needs converted to the POSIX style.
HRESULT hr = GetActivationFactory( if (length > 0) // If length is 0, then the GetLocaleInfoEx failed.
HStringReference(RuntimeClass_Windows_Globalization_ApplicationLanguages).Get(),
&applicationLanguagesStatics);
if (SUCCEEDED(hr))
{
hr = applicationLanguagesStatics->get_Languages(&languageList);
}
if (FAILED(hr))
{
// If there is no application context, then use the top language from the user language profile
ComPtr<ABI::Windows::System::UserProfile::IGlobalizationPreferencesStatics> globalizationPreferencesStatics;
hr = GetActivationFactory(
HStringReference(RuntimeClass_Windows_System_UserProfile_GlobalizationPreferences).Get(),
&globalizationPreferencesStatics);
if (SUCCEEDED(hr))
{
hr = globalizationPreferencesStatics->get_Languages(&languageList);
}
}
// We have a list of languages, ICU knows one, so use the top one for our locale
HString topLanguage;
if (SUCCEEDED(hr))
{
hr = languageList->GetAt(0, topLanguage.GetAddressOf());
}
if (FAILED(hr))
{
// Unexpected, use en-US by default
if (gCorrectedPOSIXLocale == NULL) {
gCorrectedPOSIXLocale = "en_US";
}
return gCorrectedPOSIXLocale;
}
// ResolveLocaleName will get a likely subtags form consistent with Windows behavior.
int length = ResolveLocaleName(topLanguage.GetRawBuffer(NULL), windowsLocale, UPRV_LENGTHOF(windowsLocale));
#endif
// Now we should have a Windows locale name that needs converted to the POSIX style,
if (length > 0)
{ {
// First we need to go from UTF-16 to char (and also convert from _ to - while we're at it.) // First we need to go from UTF-16 to char (and also convert from _ to - while we're at it.)
char modifiedWindowsLocale[LOCALE_NAME_MAX_LENGTH]; char modifiedWindowsLocale[LOCALE_NAME_MAX_LENGTH] = {};
int32_t i; int32_t i;
for (i = 0; i < UPRV_LENGTHOF(modifiedWindowsLocale); i++) for (i = 0; i < UPRV_LENGTHOF(modifiedWindowsLocale); i++)
@ -1817,7 +1769,7 @@ The leftmost codepage (.xxx) wins.
} }
// If unable to find a locale we can agree upon, use en-US by default // If unable to find a locale we can agree upon, use en-US by default
if (gCorrectedPOSIXLocale == NULL) { if (gCorrectedPOSIXLocale == nullptr) {
gCorrectedPOSIXLocale = "en_US"; gCorrectedPOSIXLocale = "en_US";
} }
return gCorrectedPOSIXLocale; return gCorrectedPOSIXLocale;