public TranslatePopup(ITranslateService translateService, string text, string fromLanguage, string toLanguage, bool contentProtected)
{
InitializeComponent();
_translateService = translateService;
_fromLanguage = fromLanguage == LANG_UND ? LANG_AUTO : fromLanguage;
_toLanguage = toLanguage;
Title = Strings.Resources.AutomaticTranslation;
PrimaryButtonText = Strings.Resources.CloseTranslation;
var tokenizedText = translateService.Tokenize(text, 1024);
var fromName = LanguageName(fromLanguage, out bool rtl);
var toName = LanguageName(toLanguage, out _);
if (string.IsNullOrEmpty(fromName))
{
SubtitleFrom.PlaceholderBrush = new SolidColorBrush(Colors.Transparent);
SubtitleFrom.PlaceholderText = toName;
}
else
{
SubtitleFrom.PlaceholderText = fromName;
}
Subtitle.Text = string.Format(" \u2192 {0}", toName);
foreach (var token in tokenizedText)
{
var block = new LoadingTextBlock
{
PlaceholderText = token,
IsPlaceholderRightToLeft = rtl,
IsTextSelectionEnabled = !contentProtected,
Margin = new Thickness(0, Presenter.Children.Count > 0 ? -8 : 0, 0, 0)
};
if (Presenter.Children.Count > 0)
{
block.EffectiveViewportChanged += Block_EffectiveViewportChanged;
}
Presenter.Children.Add(block);
}
Opened += OnOpened;
}
private async Task TranslateTokenAsync(LoadingTextBlock block)
{
if (_loadingMore || block.PlaceholderText == null || block.Tag != null)
{
return;
}
_loadingMore = true;
// Unsubscribe to disable load more
block.EffectiveViewportChanged -= Block_EffectiveViewportChanged;
block.Tag = new object();
var ticks = Environment.TickCount;
var response = await _translateService.TranslateAsync(block.PlaceholderText, _fromLanguage, _toLanguage);
if (response is Translation translation)
{
var diff = Environment.TickCount - ticks;
if (diff < 1000)
{
await Task.Delay(1000 - diff);
}
block.Text = translation.Text;
SubtitleFrom.Text = LanguageName(translation.SourceLanguage, out _);
}
else if (response is Error error)
{
if (error.Code == 429)
{
block.Text = Strings.Resources.TranslationFailedAlert1;
SubtitleFrom.Text = LanguageName(_fromLanguage == LANG_AUTO ? _toLanguage : _fromLanguage, out _);
}
else
{
block.Text = Strings.Resources.TranslationFailedAlert2;
SubtitleFrom.Text = LanguageName(_fromLanguage == LANG_AUTO ? _toLanguage : _fromLanguage, out _);
}
}
_loadingMore = false;
}
