public OcrLanguagesPage(ObservableCollection <OcrLanguage> activeLanguages)
{
BindingContext = this;
if (activeLanguages == null)
{
ActiveLanguages = new ObservableCollection <OcrLanguage>();
}
else
{
ActiveLanguages = new ObservableCollection <OcrLanguage>(activeLanguages);
}
if (OcrLanguageManager.DownloadableLanguages == null)
{
string embeddedLanguagesManifestFilePath = Assembly.GetExecutingAssembly().GetManifestResourceNames().Single(rn => rn.EndsWith("embedded_ocr_languages_manifest.json"));
if (!string.IsNullOrWhiteSpace(embeddedLanguagesManifestFilePath))
{
OcrLanguageManager.UpdateDownloadableLanguagesInfo(embeddedLanguagesManifestFilePath, null);
}
}
DownloadableLanguages = OcrLanguageManager.DownloadableLanguages;
InitializeComponent();
AfterInitializeComponent();
TitleExtraButtonTapped += EditButton_TitleExtraButtonTapped;
PageClosing += OcrLanguagesPage_PageClosing;
ReloadCachedLanguagesInfo();
}
private void CancelLanguageDownloadButton_Tapped(object sender, EventArgs e)
{
OcrLanguage ocrLanguage = (sender as Label).BindingContext as OcrLanguage;
if (ocrLanguage == null)
{
return;
}
OcrLanguageManager.CancelDownloadForLanguage(ocrLanguage.Language);
}
private void DownloadLanguageButton_Tapped(object sender, EventArgs e)
{
Label downloadButton = sender as Label;
downloadButton.IsEnabled = false;
OcrLanguage ocrLanguage = (sender as Label).BindingContext as OcrLanguage;
if (ocrLanguage == null)
{
return;
}
ocrLanguage.Tag = sender;
OcrLanguageManager.DownloadLanguage(ocrLanguage.Language, null, new OcrLanguageManager.CompletionDelegate(DownloadLanguageCompleted));
}
private void DeleteLanguageButton_Tapped(object sender, EventArgs e)
{
OcrLanguage ocrLanguage = (sender as SvgImage).BindingContext as OcrLanguage;
if (ocrLanguage == null)
{
return;
}
OcrLanguageManager.DeleteLanguage(ocrLanguage.Language);
ocrLanguage.IsDownloadable = true;
// Manually remove from active/inactive languages, then manually add to downloadable languages
if (ActiveLanguages.Contains(ocrLanguage))
{
ActiveLanguages.Remove(ocrLanguage);
}
else if (InactiveLanguages.Contains(ocrLanguage))
{
InactiveLanguages.Remove(ocrLanguage);
}
if (!DownloadableLanguages.Contains(ocrLanguage))
{
// Take the language from OcrLanguageManager.DownloadableLanguages instead of the local downloadable languages list since that one
// has the updated class members like file size and what not.
var langs = OcrLanguageManager.DownloadableLanguages.Where(l => l.Language.Equals(ocrLanguage.Language));
if (langs != null && langs.Count() > 0)
{
ocrLanguage = langs.ElementAt(0);
}
DownloadableLanguages.Add(ocrLanguage);
}
ReloadCachedLanguagesInfo();
}
