private async void UpdateQuestionsView(bool forceQuery)
{
StatusBlock.Visibility = Visibility.Collapsed;
await QuestionsManager.LoadAsync();
IList <BindableQuestion> list = null;
if (!forceQuery)
{
list = QuestionsManager.GetSortedQuestions();
}
if (list == null || list.Count == 0)
{
// Deleting sites or tags cleans the questions collection. Query again.
LoadingBar.ShowPaused = false;
await FeedManager.QueryWebsitesAsync();
LoadingBar.ShowPaused = true;
list = QuestionsManager.GetSortedQuestions();
if (list.Count == 0)
{
StatusBlock.Visibility = Visibility.Visible;
}
}
QuestionsManager.DisplayQuestions(QuestionsView, list);
}
/// <summary>
/// Invoked when the application is launched normally by the end user. Other entry points
/// will be used when the application is launched to open a specific file, to display
/// search results, and so forth.
/// </summary>
/// <param name="args">Details about the launch request and process.</param>
protected override async void OnLaunched(LaunchActivatedEventArgs args)
{
Frame rootFrame = Window.Current.Content as Frame;
// Do not repeat app initialization when the Window already has content,
// just ensure that the window is active
if (rootFrame == null)
{
// Create a Frame to act as the navigation context and navigate to the first page
rootFrame = new Frame();
if (args.PreviousExecutionState == ApplicationExecutionState.Terminated)
{
//TODO: Load state from previously suspended application
}
// Place the frame in the current Window
Window.Current.Content = rootFrame;
}
if (rootFrame.Content == null)
{
// When the navigation stack isn't restored navigate to the first page,
// configuring the new page by passing required information as a navigation
// parameter
// Maybe we received an unpdated "read list" while the app was not running. Make sure
// to remove the questions that are listed in the "read list".
SettingsManager.Load();
await QuestionsManager.LoadAsync();
await QuestionsManager.RemoveReadQuestionsUpdateTileAndBadgeAndSaveAsync();
bool isNewApp = SettingsManager.IsEmpty();
Type initialPage = typeof(ItemsPage);
if (isNewApp)
{
initialPage = typeof(TutorialPage);
}
if (!rootFrame.Navigate(initialPage, args.Arguments))
{
throw new Exception("Failed to create initial page");
}
}
// Ensure the current window is active
Window.Current.Activate();
// Add privacy policy command.
SettingsPane.GetForCurrentView().CommandsRequested += AddSettingsCommand;
}
private async Task ValidateAndAddTagAsync(string tag)
{
String tagEncoded = WebUtility.UrlEncode(tag.Trim());
await QuestionsManager.LoadAsync();
AddQuestionsResult result = await FeedManager.QueryTagAsync(website.ToString(), tagEncoded);
if (result.FileFound)
{
website.AddTagAndSave(TagsView, tag);
// Tag added successfully, clear the text.
TagBox.Text = "";
}
else
{
// Display red color while we figure it out a better way to diplay errors.
TagBox.Foreground = new SolidColorBrush(Colors.Red);
}
}