public async Task AddAsync(StreamItem item)
{
if (_items.Value.Any(t => t.Id == item.Id))
return;
var folderName = Guid.NewGuid().ToString("N");
var parser = new HtmlParser();
var plainText = parser.GetPlainText(item.Content, 200);
var cacheFolder = await _rootCacheFolder.CreateFolderAsync(CacheFolderName, CreationCollisionOption.OpenIfExists).AsTask().ConfigureAwait(false);
var folder = await cacheFolder.CreateFolderAsync(folderName).AsTask().ConfigureAwait(false);
var newHtml = await SaveImagesAsync(folder, item.Content).ConfigureAwait(false);
var savedItem = new SavedStreamItem
{
Id = item.Id,
Title = item.Title,
Published = item.Published,
WebUri = item.WebUri,
ShortContent = plainText,
Content = newHtml,
ImageFolder = folderName
};
_items.Value.Add(savedItem);
_storageManager.Save(savedItem);
}
private void OnSelectItem(object obj)
{
var item = obj as StreamItem;
if (item != null && !(item is EmptySpaceStreamItem) && !(item is HeaderSpaceStreamItem))
{
if (_currentItem != null)
_currentItem.IsSelected = false;
_currentItem = item;
_currentItem.IsSelected = true;
if (!item.NeedSetReadExplicitly && item.Unread && !_isStarsList)
{
item.Unread = false;
MarkAsRead(item.Id, true);
}
SetCurrentItemRead(!_currentItem.Unread);
SetCurrentItemStarred(_currentItem.Starred);
CurrentItemReadEnabled = _currentItem != null;
CurrentItemStarredEnabled = _currentItem != null;
RaiseOpenWebCommandCanExecuteChanged();
RaiseShareCommandCanExecuteChanged();
RaiseSaveCommandCanExecuteChanged();
}
else
{
CurrentItemReadEnabled = false;
CurrentItemStarredEnabled = false;
}
}
private void OnItemsScroll(object obj)
{
var items = (object[])obj;
var firstItem = (StreamItem)items[0];
if (firstItem is EmptySpaceStreamItem || firstItem is HeaderSpaceStreamItem)
{
CurrentItemReadEnabled = false;
CurrentItemStarredEnabled = false;
return;
}
if (!firstItem.NeedSetReadExplicitly && firstItem.Unread && _autoMarkAsRead && !_isStarsList)
{
firstItem.Unread = false;
MarkAsRead(firstItem.Id, true);
}
if (_currentItem != null)
_currentItem.IsSelected = false;
_currentItem = firstItem;
_currentItem.IsSelected = true;
SetCurrentItemRead(!_currentItem.Unread);
SetCurrentItemStarred(_currentItem.Starred);
//CurrentItemReadEnabled = _currentItem != null;
CurrentItemStarredEnabled = _currentItem != null;
RaiseOpenWebCommandCanExecuteChanged();
RaiseShareCommandCanExecuteChanged();
RaiseSaveCommandCanExecuteChanged();
}
private async Task LoadDataInternalAsync()
{
await _localStorageManager.ClearTempFilesAsync();
var streamItems = new StreamItemCollection(_apiClient, _streamId, _showNewestFirst, _telemetryClient, AllArticles, b => IsBusy = b, _preloadItemCount);
streamItems.LoadMoreItemsError += (sender, args) => IsOffline = true;
await streamItems.InitAsync();
Items = streamItems;
_currentItem = Items.FirstOrDefault();
if (_currentItem != null)
{
_currentItem.IsSelected = true;
SetCurrentItemRead(!_currentItem.Unread);
SetCurrentItemStarred(_currentItem.Starred);
}
else
{
SetCurrentItemRead(false);
SetCurrentItemStarred(false);
}
CurrentItemReadEnabled = _currentItem != null && !(_currentItem is EmptySpaceStreamItem) && !(_currentItem is HeaderSpaceStreamItem);
CurrentItemStarredEnabled = _currentItem != null && !(_currentItem is EmptySpaceStreamItem) && !(_currentItem is HeaderSpaceStreamItem);
RaiseOpenWebCommandCanExecuteChanged();
RaiseShareCommandCanExecuteChanged();
RaiseSaveCommandCanExecuteChanged();
if (Items != null)
{
var streamItemCollectionState = Items.GetSate();
//await _cacheManager.SaveStreamAsync(streamItemCollectionState);
await _localStorageManager.SaveStreamCollectionAsync(streamItemCollectionState);
}
}
private async void LoadData()
{
IsBusy = true;
Exception error = null;
try
{
IsOffline = false;
await LoadDataInternalAsync();
}
catch (AuthenticationApiException)
{
_apiClient.ClearSession();
_navigationService.Navigate(PageTokens.SignIn, null);
return;
}
catch (Exception ex)
{
error = ex;
_telemetryClient.TrackExceptionFull(ex);
}
finally
{
IsBusy = false;
}
if (error == null) return;
IsOffline = true;
IsBusy = true;
var cacheData = await _localStorageManager.LoadStreamCollectionAsync(_streamId);
IsBusy = false;
if (cacheData != null)
{
var items = new StreamItemCollection(cacheData, _apiClient, _telemetryClient, b => IsBusy = b, _preloadItemCount);
_currentItem = items.FirstOrDefault(i => i.IsSelected);
_currentItemRead = _currentItem != null && !_currentItem.Unread;
CurrentItemReadEnabled = _currentItem != null;
_currentItemStarred = _currentItem != null && _currentItem.Starred;
CurrentItemStarredEnabled = _currentItem != null;
Items = items;
}
MessageDialog msgbox = new MessageDialog(error.Message, Strings.Resources.ErrorDialogTitle);
await msgbox.ShowAsync();
}
private bool RestoreState(Dictionary<string, object> viewModelState)
{
if (viewModelState == null)
return false;
object stateValue;
if (viewModelState.TryGetValue("Title", out stateValue))
Title = (string)stateValue;
_currentItemRead = viewModelState.GetValue<bool>("CurrentItemRead");
OnPropertyChanged("CurrentItemRead");
CurrentItemReadEnabled = viewModelState.GetValue<bool>("CurrentItemReadEnabled");
_currentItemStarred = viewModelState.GetValue<bool>("CurrentItemStarred");
OnPropertyChanged("CurrentItemStarred");
CurrentItemStarredEnabled = viewModelState.GetValue<bool>("CurrentItemStarredEnabled");
var itemsState = viewModelState.GetValue<StreamItemCollectionState>("Items");
if (itemsState == null)
return false;
_currentItem = itemsState.Items.FirstOrDefault(i => i.IsSelected);
Items = new StreamItemCollection(itemsState, _apiClient, _telemetryClient, b => IsBusy = b, _preloadItemCount);
Items.LoadMoreItemsError += (sender, args) => IsOffline = true;
return true;
}
private StreamItem[] LoadStreamCollectionItems(SQLiteConnection connection, string streamId)
{
List<StreamItem> items = new List<StreamItem>();
items.Add(new HeaderSpaceStreamItem());
using (var statement = connection.Prepare(@"SELECT ID, PUBLISHED, TITLE, WEB_URI, CONTENT, UNREAD, NEED_SET_READ_EXPLICITLY, IS_SELECTED, STARRED, SAVED FROM STREAM_ITEM WHERE STREAM_ID = @STREAM_ID;"))
{
statement.Bind("@STREAM_ID", streamId);
while (statement.Step() == SQLiteResult.ROW)
{
var item = new StreamItem
{
Id = (string)statement[0],
Published = DateTimeOffset.Parse((string)statement[1]),
Title = (string)statement[2],
WebUri = (string)statement[3],
Content = (string)statement[4],
Unread = statement.GetInteger(5) == 1,
NeedSetReadExplicitly = statement.GetInteger(6) == 1,
IsSelected = statement.GetInteger(7) == 1,
Starred = statement.GetInteger(8) == 1,
Saved = statement.GetInteger(9) == 1,
};
items.Add(item);
}
}
items.Add(new EmptySpaceStreamItem());
return items.ToArray();
}