private async Task Filter()
{
TokenSource.Cancel();
var query = from feed in await RSSDataService.GetFeedsDataAsync(0) select feed;
if (FilterSelectedSource != null)
{
query = query.Where(x => x.PostSource.Id == FilterSelectedSource.Id);
}
if (!string.IsNullOrWhiteSpace(FilterTitle))
{
query = query.Where(x => x.PostTitle.ToLower().Contains(FilterTitle.ToLower()));
}
if (!string.IsNullOrWhiteSpace(FilterCreator))
{
query = query.Where(x => x.Authors.Any(x => x.Email.ToLower() == FilterCreator.ToLower()));
}
if (FilterIsUnreadOnly)
{
query = query.Where(x => x.IsRead == false);
}
Feeds.Clear();
foreach (var item in query)
{
Feeds.Add(item);
}
}
public void EnterModelContext(NavigationContext oldContext, NavigationContext newContext)
{
// Load settings
NewsSettings settings = ServiceRegistration.Get <ISettingsManager>().Load <NewsSettings>();
HasChanges = false;
NewFeedBookmark = new FeedBookmarkItem();
Feeds.Clear();
lock (settings.FeedsList)
{
if (settings.FeedsList.Count == 0)
{
foreach (var feed in NewsSettings.GetDefaultRegionalFeeds())
{
Feeds.Add(new FeedBookmarkItem {
Name = feed.Name, Url = feed.Url
});
}
}
else
{
foreach (var feed in settings.FeedsList)
{
Feeds.Add(new FeedBookmarkItem {
Name = feed.Name, Url = feed.Url
});
}
}
}
}
public async Task LoadFeedsAsync()
{
IsLoading = true;
Feeds.Clear();
var results = await _feedService.GetFeeds();
foreach (var feedDto in results)
{
Feed feed = AutoMapper.Mapper.Map <Feed>(feedDto);
Feeds.Add(feed);
}
IsLoading = false;
}
private async void SearchButton_Click(object sender, RoutedEventArgs e)
{
searchingProgressRing.IsActive = true;
Feeds.Clear();
List <Uri> feedUrls = new List <Uri>();
//Semaphore semaphore = new Semaphore(0, feedUrls.Count);
try
{
if (((Button)sender).Content.ToString() == "Feedly")
{
feedUrls = await FeedsFinder.SearchFromFeedly(websiteTextBox.Text);
}
else
{
feedUrls = await FeedsFinder.GetFeedsFromUrl(new Uri(websiteTextBox.Text));
}
var client = new SyndicationClient();
List <FeedViewModel> feeds = new List <FeedViewModel>();
Parallel.ForEach(feedUrls, async(url, loopstat) =>
{
try
{
var feed = await client.RetrieveFeedAsync(url);
lock (feeds)
{
Invoke(() =>
{
Feeds.Add(new FeedViewModel(feed, url.AbsoluteUri));
});
System.Diagnostics.Debug.WriteLine("循环内");
}
}
catch (Exception exception)
{
System.Diagnostics.Debug.WriteLine(exception.Message);
}
});
}
catch (Exception)
{
Feeds.Add(new FeedViewModel("无结果或链接错误", "", "", "Nopic"));
}
System.Diagnostics.Debug.WriteLine("循环外");
Invoke(() => searchingProgressRing.IsActive = false);
}
private async void ShowFeeds()
{
Feeds.Clear();
if (FeedURLs != null)
{
foreach (string url in FeedURLs.Split(new char[] { '\n', '\r' }, StringSplitOptions.RemoveEmptyEntries))
{
var puri = new ParsedUri(url);
var parsedDoc = await _sessionScope.GetDocument(puri);
var feedViewModels = FeedViewModelFactory.GetFeedViewModels(parsedDoc);
foreach (var viewModel in feedViewModels)
{
Feeds.Add(viewModel);
}
this.NotifyPropertyChanged("Feeds");
}
}
}
/// <summary>
/// Populates the Feeds list and initializes the CurrentFeed and CurrentArticle properties.
/// </summary>
public async Task InitializeFeedsAsync()
{
Feeds.Clear();
(await FeedDataSource.GetFeedsAsync()).ForEach(feed => Feeds.Add(feed));
CurrentFeed = Feeds[Feeds.Count == 1 ? 0 : 1];
CurrentArticle = CurrentFeed.Articles.FirstOrDefault() ?? CurrentArticle;
if (FavoritesFeed.Articles.Count == 0)
{
FavoritesFeed.ErrorMessage = NO_ARTICLES_MESSAGE;
}
FavoritesFeed.Articles.CollectionChanged += async(s, e) =>
{
// This handles list saving for both newly-starred items and for
// reordering of the Favorites list (which causes a Remove followed by an Add).
// List saving for removals due to an unstarring are handled in FeedView.xaml.cs.
if (e.Action == NotifyCollectionChangedAction.Add)
{
await SaveFavoritesAsync();
}
FavoritesFeed.ErrorMessage = FavoritesFeed.Articles.Count > 0 ? null : NO_ARTICLES_MESSAGE;
};
Initialized?.Invoke(this, EventArgs.Empty);
}
public void LoadFeedsFromStorage()
{
Feeds.Clear();
Bookmarks.Clear();
if (Directory.Exists(FeedDirectory))
{
foreach (var feed_file in Directory.GetFiles(FeedDirectory, "*.feed"))
{
Feed feed;
using (var file = new StreamReader(feed_file))
feed = Feed.Deserialize(Path.GetFileNameWithoutExtension(feed_file), file.ReadToEnd());
foreach (var post_file in Directory.GetFiles(Path.Combine(FeedDirectory, feed.ID), "*.post"))
{
Feed.Post post;
using (var file = new StreamReader(post_file))
post = Feed.Post.Deserialize(feed, Path.GetFileNameWithoutExtension(post_file), file.ReadToEnd());
feed.Posts.Add(post);
}
feed.Posts.Sort((x, y) => y.DatePublished.CompareTo(x.DatePublished));
Feeds.Add(feed);
}
foreach (var bookmark_file in Directory.GetFiles(Path.Combine(FeedDirectory, "bookmarks"), "*.bookmark"))
{
Bookmark bookmark;
using (var file = new StreamReader(bookmark_file))
bookmark = Bookmark.Deserialize(Path.GetFileNameWithoutExtension(bookmark_file), file.ReadToEnd());
Bookmarks.Add(bookmark);
}
}
else
{
Directory.CreateDirectory(Path.Combine(FeedDirectory, "bookmarks"));
}
}
/// <summary>
/// Gets all the feeds from database (with-in limits in settings)
/// the try to gets all the new stuff from your sources
/// add the new ones to the database if there is any
/// then show the latest (with-in limits in settings)
/// </summary>
/// <param name="progress"></param>
/// <param name="token"></param>
/// <returns>Task Type</returns>
public async Task LoadDataAsync(IProgress <int> progress, CancellationToken token)
{
IsLoadingData = true;
FilterSources.Clear();
Feeds.Clear();
ProgressCurrent = 0;
bool hasLoadedFeedNewItems = false;
// Shows the user what's new in this version
await WhatsNewDisplayService.ShowIfAppropriateAsync();
// Set Httpclient userAgent to the user selected one
await RssRequest.SetCustomUserAgentAsync();
foreach (var rss in await RSSDataService.GetFeedsDataAsync(await ApplicationData.Current.LocalSettings.ReadAsync <int>("FeedsLimit")))
{
Feeds.Add(rss);
}
SyndicationFeed feed = null;
var sourcesDataList = await SourceDataService.GetSourcesDataAsync();
ProgressMax = sourcesDataList.Count();
int progressCount = 0;
foreach (var source in sourcesDataList)
{
FilterSources.Add(source);
if (token.IsCancellationRequested)
{
IsLoadingData = false;
TokenSource = new CancellationTokenSource();
MarkAsReadCommand.OnCanExecuteChanged();
return;
}
}
// if there is no internet just cut our loses and get out of here we already loaded the local data
if (!new NetworkInformationHelper().HasInternetAccess)
{
await new MessageDialog("CheckInternetMessageDialog".GetLocalized()).ShowAsync();
return;
}
var WaitAfterLastCheckInMinutes = await ApplicationData.Current.LocalSettings.ReadAsync <int>("WaitAfterLastCheck");
foreach (var sourceItem in FilterSources)
{
bool isFirstItemInFeed = true;
if (token.IsCancellationRequested)
{
IsLoadingData = false;
TokenSource = new CancellationTokenSource();
MarkAsReadCommand.OnCanExecuteChanged();
return;
}
// don't get source feed if x number of minutes haven't passed since the last one - default is 2 hours
var checkSourceAfter = sourceItem.LastBuildCheck.AddMinutes(WaitAfterLastCheckInMinutes);
if (checkSourceAfter >= DateTimeOffset.Now)
{
continue;
}
if (!new NetworkInformationHelper().HasInternetAccess)
{
continue;
}
progress.Report(++progressCount);
//if getting the feed crushed for (internet - not xml rss - other reasons)
//move to the next source on the list to try it instead of stopping every thing
try
{
var feedString = await RssRequest.GetFeedAsStringAsync(sourceItem.RssUrl, token);
feed = new SyndicationFeed();
if (string.IsNullOrWhiteSpace(feedString))
{
continue;
}
else
{
feed.Load(feedString);
// Saves rss items count and last check time to source
sourceItem.CurrentRssItemsCount = feed.Items.Count;
sourceItem.LastBuildCheck = DateTimeOffset.Now;
await SourceDataService.UpdateSourceAsync(sourceItem);
}
}
catch (Exception ex)
{
Debug.WriteLine(ex);
continue;
}
// Iterate through each feed item.
foreach (SyndicationItem syndicationItem in feed.Items)
{
if (token.IsCancellationRequested)
{
IsLoadingData = false;
TokenSource = new CancellationTokenSource();
MarkAsReadCommand.OnCanExecuteChanged();
return;
}
//handle edge cases like when they don't send that stuff or misplace them like freaking reddit r/worldnews
if (syndicationItem.Title == null)
{
syndicationItem.Title = new SyndicationText("MainViewModelNoTitleFound".GetLocalized());
}
if (syndicationItem.Summary == null)
{
syndicationItem.Summary = new SyndicationText("MainViewModelNoSummaryFound".GetLocalized());
}
if (syndicationItem.PublishedDate.Year < 2000)
{
syndicationItem.PublishedDate = syndicationItem.LastUpdatedTime.Year > 2000 ? syndicationItem.LastUpdatedTime : DateTimeOffset.Now;
}
Uri itemNewUri = syndicationItem.ItemUri;
if (itemNewUri == null)
{
if (syndicationItem.Links.Count > 0)
{
itemNewUri = syndicationItem.Links.FirstOrDefault().Uri;
}
}
if (string.IsNullOrWhiteSpace(syndicationItem.Id))
{
syndicationItem.Id = itemNewUri.ToString();
}
var rss = new RSS
{
PostTitle = syndicationItem.Title.Text,
Description = syndicationItem.Summary.Text,
Authors = new List <Author>(),
URL = itemNewUri,
CreatedAt = syndicationItem.PublishedDate.DateTime,
Guid = syndicationItem.Id,
PostSource = sourceItem
};
foreach (var author in syndicationItem.Authors)
{
rss.Authors.Add(new Author
{
Name = author.Name,
Email = author.Email,
Uri = author.Uri
});
}
if (!await RSSDataService.FeedExistAsync(rss))
{
var newRss = await RSSDataService.AddNewFeedAsync(rss);
Feeds.Add(newRss);
hasLoadedFeedNewItems = true;
// Add first item in each source feed to Windows Live Tiles
if (isFirstItemInFeed)
{
Singleton <LiveTileService> .Instance.SampleUpdate(newRss.PostSource.SiteTitle, ShortenText(newRss.PostTitle, 80), ShortenText(newRss.Description, 95));
}
isFirstItemInFeed = false;
}
}
}
if (hasLoadedFeedNewItems)
{
Feeds.Clear();
foreach (var rss in await RSSDataService.GetFeedsDataAsync(await ApplicationData.Current.LocalSettings.ReadAsync <int>("FeedsLimit")))
{
Feeds.Add(rss);
}
}
IsLoadingData = false;
MarkAsReadCommand.OnCanExecuteChanged();
}
/// <summary>
/// Gets all the feeds from database (with-in limits in settings)
/// the try to gets all the new stuff from your sources
/// add the new ones to the database if there is any
/// then show the latest (with-in limits in settings)
/// </summary>
/// <param name="progress"></param>
/// <param name="ct"></param>
/// <returns>Task Type</returns>
public async Task LoadDataAsync(IProgress <int> progress, CancellationToken token)
{
IsLoadingData = true;
FilterSources.Clear();
Feeds.Clear();
bool hasLoadedFeedNewItems = false;
foreach (var rss in await RSSDataService.GetFeedsDataAsync(await ApplicationData.Current.LocalSettings.ReadAsync <int>("FeedsLimit")))
{
Feeds.Add(rss);
}
SyndicationFeed feed = new SyndicationFeed();
var sourcesDataList = await SourceDataService.GetSourcesDataAsync();
ProgressMax = sourcesDataList.Count();
ProgressCurrent = 0;
int progressCount = 0;
foreach (var source in sourcesDataList)
{
FilterSources.Add(source);
if (token.IsCancellationRequested)
{
IsLoadingData = false;
return;
}
}
// if there is no internet just cut our loses and get out of here we already loaded the local data
if (!new NetworkInformationHelper().HasInternetAccess)
{
await new MessageDialog("CheckInternetMessageDialog".GetLocalized()).ShowAsync();
return;
}
foreach (var sourceItem in FilterSources)
{
if (token.IsCancellationRequested)
{
IsLoadingData = false;
return;
}
if (!new NetworkInformationHelper().HasInternetAccess)
{
continue;
}
progress.Report(++progressCount);
//if getting the feed crushed for (internet - not xml rss - other reasons)
//move to the next source on the list to try it instead of stoping every thing
try
{
var feedString = await RssRequest.GetFeedAsStringAsync(sourceItem.RssUrl);
if (string.IsNullOrWhiteSpace(feedString))
{
continue;
}
else
{
var xmlFeed = feedString.TrimStart();
feed.Load(xmlFeed);
}
}
catch (Exception ex)
{
Debug.WriteLine(ex);
continue;
}
// Iterate through each feed item.
foreach (SyndicationItem syndicationItem in feed.Items)
{
if (token.IsCancellationRequested)
{
IsLoadingData = false;
return;
}
//handle edge cases like when they don't send that stuff or misplace them like freaking reddit r/worldnews
if (syndicationItem.Title == null)
{
syndicationItem.Title = new SyndicationText("MainViewModelNoTitleFound".GetLocalized());
}
if (syndicationItem.Summary == null)
{
syndicationItem.Summary = new SyndicationText("MainViewModelNoSummaryFound".GetLocalized());
}
if (syndicationItem.PublishedDate.Year < 2000)
{
syndicationItem.PublishedDate = syndicationItem.LastUpdatedTime.Year > 2000 ? syndicationItem.LastUpdatedTime : DateTimeOffset.Now;
}
Uri itemNewUri = syndicationItem.ItemUri;
if (itemNewUri == null)
{
if (syndicationItem.Links.Count > 0)
{
itemNewUri = syndicationItem.Links.FirstOrDefault().Uri;
}
}
var rss = new RSS
{
PostTitle = syndicationItem.Title.Text,
Description = syndicationItem.Summary.Text,
Authors = new List <Author>(),
URL = itemNewUri,
CreatedAt = syndicationItem.PublishedDate.DateTime,
Guid = syndicationItem.Id,
PostSource = sourceItem
};
foreach (var author in syndicationItem.Authors)
{
rss.Authors.Add(new Author
{
Name = author.Name,
Email = author.Email,
Uri = author.Uri
});
}
if (!await RSSDataService.FeedExistAsync(rss))
{
var newRss = await RSSDataService.AddNewFeedAsync(rss);
Feeds.Add(newRss);
hasLoadedFeedNewItems = true;
}
}
//shorten the text for windows 10 Live Tile
Singleton <LiveTileService> .Instance.SampleUpdate(feed.Title.Text, ShortenText(feed.Items.FirstOrDefault()?.Title.Text, 80), ShortenText(feed.Items.FirstOrDefault()?.Summary.Text, 95));
}
if (hasLoadedFeedNewItems)
{
Feeds.Clear();
foreach (var rss in await RSSDataService.GetFeedsDataAsync(await ApplicationData.Current.LocalSettings.ReadAsync <int>("FeedsLimit")))
{
Feeds.Add(rss);
}
}
MarkAsReadCommand.OnCanExecuteChanged();
IsLoadingData = false;
}