public static async Task <List <DocumentationPageViewModel> > FetchGettingStartedPages(IViewModelServiceProvider serviceProvider, string version)
{
string urlData = null;
var result = new List <DocumentationPageViewModel>();
try
{
WebRequest request = WebRequest.Create(string.Format(Urls.GettingStarted, version));
using (var reponse = await request.GetResponseAsync())
{
using (var str = reponse.GetResponseStream())
{
if (str != null)
{
using (var reader = new StreamReader(str))
{
urlData = reader.ReadToEnd();
}
}
}
}
}
catch (Exception)
{
// Unable to reach the url, return an empty list.
return(result);
}
if (urlData == null)
{
return(result);
}
try
{
var urls = urlData.Split(new[] { '\n' }, StringSplitOptions.RemoveEmptyEntries);
foreach (var url in urls)
{
var match = ParsingRegex.Match(url);
if (match.Success && match.Groups.Count == 4)
{
var link = match.Groups[3].Value;
if (link.StartsWith(DocPageScheme))
{
link = GetDocumentationPageUrl(version, link.Substring(DocPageScheme.Length));
}
var page = new DocumentationPageViewModel(serviceProvider, version)
{
Title = match.Groups[1].Value.Trim(),
Description = match.Groups[2].Value.Trim(),
Url = link.Trim()
};
result.Add(page);
}
}
}
catch (Exception)
{
result.Clear();
}
return(result);
}
/// <summary>
/// Fetches the documentation pages corresponding to this version from the server.
/// </summary>
internal async void FetchDocumentation()
{
var pages = await DocumentationPageViewModel.FetchGettingStartedPages(ServiceProvider, $"{Major}.{Minor}");
Dispatcher.Invoke(() => { DocumentationPages.Clear(); DocumentationPages.AddRange(pages); });
}
