private string TranslateNodes(string html, string xpath)
{
if (_sourceLanguage == _targetLanguage)
return html;
var doc = new HtmlDocument();
doc.LoadHtml(html);
HtmlNodeCollection nodes = doc.DocumentNode.SelectNodes(xpath);
if (nodes == null)
return html;
var translationRequest = new TranslationRequest(_sourceLanguage, _targetLanguage);
foreach (var node in nodes)
{
if (!ShouldTranslateNode(node))
continue;
translationRequest.Translations.Add(new Translation(FindTextToTranslate(node)));
}
// De-dupe list to minimize calls
translationRequest.Translations = translationRequest.Translations.Distinct().ToList();
_translationProvider.Translate(translationRequest);
foreach (var node in nodes)
{
if (!ShouldTranslateNode(node))
continue;
Translation t = translationRequest.Translations.FirstOrDefault(x => x.SourceText == FindTextToTranslate(node));
if (t != null)
WriteTranslatedText(node, t.TargetText);
}
return doc.DocumentNode.InnerHtml;
}
private string Translate(string html)
{
if (_sourceLanguage == _targetLanguage)
return html;
var doc = new HtmlDocument();
doc.LoadHtml(html);
HtmlNodeCollection textNodes = doc.DocumentNode.SelectNodes("//text()");
foreach (var textNode in textNodes)
{
string text = textNode.InnerHtml;
if (string.IsNullOrWhiteSpace(text))
continue;
if (ExcludeTags.Contains(textNode.ParentNode.Name.ToLower()))
continue;
var trans = new TranslationRequest(_sourceLanguage, _targetLanguage);
trans.Translations.Add(new Translation(textNode.InnerHtml));
_translationProvider.Translate(trans);
textNode.InnerHtml = trans.Translations[0].TargetText;
}
return doc.DocumentNode.InnerHtml;
}