static void data_SectionStoriesDownloadCompleted(object sender,
DownloadStringCompletedEventArgs downloadCompletedEvent,
ObservableCollection<Story> storyCollection,
Section section,
InsertStoriesAt insertStoriesAt)
{
if (downloadCompletedEvent.Error != null)
{
DownloadFailed(sender, downloadCompletedEvent);
return;
}
SunApiAdapter.handleJsonWithSanitization(
(json) =>
{
var stories = SunApiAdapter.StoriesOfApiResponse(json);
var existingNids = storyCollection.Select(s => s.Nid);
int countStoriesAdded = insertStoriesAt == InsertStoriesAt.Beginning ? 0 : storyCollection.Count;
foreach (Story story in stories.Where(article => !existingNids.Contains(article.Nid)))
{
story.Vid = section.Vid;
// cached stories will already be present
// so we want to add the new stuff to the beginning
// Do we need to sort anyway, or will this always work?
storyCollection.Insert(countStoriesAdded++, story);
}
},
() =>
{
Debug.Assert(false, "Why couldn't the JSON be parsed?");
DownloadFailed(sender, downloadCompletedEvent);
},
downloadCompletedEvent.Result
);
}
internal static ObservableCollection<Story> GetStories(Section section, InsertStoriesAt insertStoriesAt)
{
if (!_downloadedSectionStories.Contains(section) && !_currentlyDownloadingSectionStories.Contains(section))
{
_currentlyDownloadingSectionStories.Add(section);
downloadData(SunApiAdapter.StoriesUrlOfSection(section), (sender, e) =>
{
_downloadedSectionStories.Add(section);
_currentlyDownloadingSectionStories.Remove(section);
data_SectionStoriesDownloadCompleted(sender, e, getSectionStories()[section], section, insertStoriesAt);
section.LoadedPage++;
});
}
return getSectionStories()[section];
}
