WinString CustomFontManager::GetAbsolutePathFromUri(IUriRuntimeClass* uri)
{
auto storageFileStatics = m_adapter->GetStorageFileStatics();
ComPtr<IAsyncOperation<StorageFile*>> operation;
HRESULT hr = storageFileStatics->GetFileFromApplicationUriAsync(uri, &operation);
if (FAILED(hr))
{
ThrowHR(hr, HStringReference(Strings::InvalidFontFamilyUri).Get());
}
Event operationCompleted(CreateEventEx(nullptr, nullptr, CREATE_EVENT_MANUAL_RESET, EVENT_ALL_ACCESS));
auto handler = Callback<AddFtmBase<IAsyncOperationCompletedHandler<StorageFile*>>::Type>(
[&](IAsyncOperation<StorageFile*>*, AsyncStatus)
{
SetEvent(operationCompleted.Get());
return S_OK;
});
CheckMakeResult(handler);
ThrowIfFailed(operation->put_Completed(handler.Get()));
auto res = WaitForSingleObjectEx(operationCompleted.Get(), INFINITE, false);
if (res != WAIT_OBJECT_0)
ThrowHR(E_UNEXPECTED);
ComPtr<IStorageFile> storageFile;
ThrowIfFailed(operation->GetResults(&storageFile));
WinString path;
ThrowIfFailed(As<IStorageItem>(storageFile)->get_Path(path.GetAddressOf()));
return path;
}
IFACEMETHODIMP CanvasTextFormatFactory::GetSystemFontFamiliesFromLocaleList(
IVectorView<HSTRING>* localeList,
uint32_t* valueCount,
HSTRING** valueElements)
{
return ExceptionBoundary(
[&]
{
CheckInPointer(valueCount);
CheckAndClearOutPointer(valueElements);
auto factory = CustomFontManager::GetInstance()->GetSharedFactory();
ComPtr<IDWriteFontCollection> systemFontCollection;
ThrowIfFailed(factory->GetSystemFontCollection(&systemFontCollection));
uint32_t familyCount = systemFontCollection->GetFontFamilyCount();
ComArray<HSTRING> stringArray(familyCount);
for (uint32_t i = 0; i < familyCount; ++i)
{
ComPtr<IDWriteFontFamily> fontFamily;
ThrowIfFailed(systemFontCollection->GetFontFamily(i, &fontFamily));
ComPtr<IDWriteLocalizedStrings> familyNames;
ThrowIfFailed(fontFamily->GetFamilyNames(&familyNames));
WinString familyName = GetFamilyName(familyNames, localeList);
familyName.CopyTo(&stringArray[i]);
}
stringArray.Detach(valueCount, valueElements);
});
}
void CustomFontManager::ValidateUri(WinString const& uriString)
{
if (uriString == WinString())
return;
ComPtr<IUriRuntimeClass> uri;
ThrowIfFailed(m_uriFactory->CreateWithRelativeUri(WinString(L"ms-appx://"), uriString, &uri));
WinString schemeName;
ThrowIfFailed(uri->get_SchemeName(schemeName.GetAddressOf()));
if (!schemeName.Equals(HStringReference(L"ms-appx").Get()) &&
!schemeName.Equals(HStringReference(L"ms-appdata").Get()))
{
ThrowHR(E_INVALIDARG, Strings::InvalidFontFamilyUriScheme);
}
}
static bool TryGetLocalizedNameUsingLocaleList(
IVectorView<HSTRING>* localeList,
ComPtr<IDWriteLocalizedStrings> const& familyNames,
WinString* nameIfFound)
{
if (!localeList)
return false;
uint32_t localeListSize;
ThrowIfFailed(localeList->get_Size(&localeListSize));
for (uint32_t localeIndex = 0; localeIndex < localeListSize; ++localeIndex)
{
WinString locale;
ThrowIfFailed(localeList->GetAt(localeIndex, locale.GetAddressOf()));
if (TryGetLocalizedName(static_cast<wchar_t const*>(locale), familyNames, nameIfFound))
return true;
}
return false;
}
static void SetFrom(HSTRING* outputValue, WinString const& value)
{
value.CopyTo(outputValue);
}
static bool IsSame(HSTRING* outputValue, WinString const& value)
{
return value.Equals(*outputValue);
}