/// <summary>
/// Initializes a new instance of the <see cref="GotNewFeedItemEventArgs"/> class.
/// </summary>
/// <param name="feedItem">The new feed item.</param>
internal GotNewFeedItemEventArgs(FeedItem feedItem)
{
FeedItem = feedItem;
}
/// <summary>
/// Called by the river when this item is being hidden because it scrolled out of view.
/// </summary>
internal override void Cleanup()
{
_feedItem = null;
DataContext = null;
}
/// <summary>
/// Called by the river when the item should render some data.
/// </summary>
/// <param name="state">A definition which describes the size and position of this item in the river.</param>
/// <param name="data">The data that the river is requesting to be rendered. The item can override this and return different data if needed.</param>
/// <returns>
/// The data that this item will render. If null, the item won't be shown.
/// </returns>
internal override object RenderData(RiverItemState state, object data)
{
UserControl visualState = null;
object finalData = data;
if (DesignerProperties.GetIsInDesignMode(this))
{
if (state.RowSpan == state.ColumnSpan)
{
visualState = _smallImage;
}
else if (App.Random.NextDouble() > .5)
{
visualState = _smallNews;
}
else
{
visualState = _smallTweet;
}
}
else if (AppState.Instance.IsInitialized)
{
_feedItem = data as FeedItem;
if (_feedItem != null && _feedItem.BlockReason != BlockReason.None)
{
// This object is being rendered from history, but it got blocked since it was last displayed. Reject this content and get new content.
finalData = _feedItem = GetData(state, false) as FeedItem;
}
if (_feedItem is ImageFeedItem)
{
// visualState = removed ? _largeImage as UserControl : _smallImage as UserControl;
visualState = _smallImage as UserControl;
}
else if (_feedItem is NewsFeedItem)
{
// visualState = removed ? _largeNews as UserControl : _smallNews as UserControl;
visualState = _smallNews as UserControl;
}
else if (_feedItem is StatusFeedItem)
{
// visualState = removed ? _largeTweet as UserControl : _smallTweet as UserControl;
visualState = _smallTweet as UserControl;
}
DataContext = _feedItem;
if (Backside != null)
{
TagBack tag = Backside.FindVisualChild<TagBack>();
if (tag != null)
{
tag.DataContext = DataContext;
if (_feedItem == null)
{
tag.TagName = string.Empty;
}
else
{
// Force mobile.twitter.com, because twitter doesn't redirect to the mobile site properly on Windows Mobile 6 devices
tag.TagName = _feedItem.Uri.OriginalString.Replace("twitter.com", "mobile.twitter.com");
}
}
}
}
GoToState(visualState);
return finalData;
}
/// <summary>
/// Raises the GotNewFeedItem event.
/// </summary>
/// <param name="feedItem">The feed item.</param>
protected void RaiseGotNewFeedItem(FeedItem feedItem)
{
if (GotNewFeedItem != null)
{
GotNewFeedItem(this, new GotNewFeedItemEventArgs(feedItem));
}
}
/// <summary>
/// Called by the river when this item is being hidden because it scrolled out of view.
/// </summary>
internal override void Cleanup()
{
_feedItem = null;
_breaking.Stop(this);
DataContext = null;
}
/// <summary>
/// Called by the river when the item should render some data.
/// </summary>
/// <param name="state">A definition which describes the size and position of this item in the river.</param>
/// <param name="data">The data that the river is requesting to be rendered. The item can override this and return different data if needed.</param>
/// <returns>
/// The data that this item will render. If null, the item won't be shown.
/// </returns>
internal override object RenderData(RiverItemState state, object data)
{
UserControl visualState = null;
object finalData = data;
if (DesignerProperties.GetIsInDesignMode(this))
{
if (state.RowSpan == state.ColumnSpan)
{
visualState = _smallImage;
}
else if (App.Random.NextDouble() > .5)
{
visualState = _smallNews;
}
else
{
visualState = _smallTweet;
}
}
else if (AppState.Instance.IsInitialized)
{
_feedItem = data as FeedItem;
if (_feedItem != null && _feedItem.BlockReason != BlockReason.None)
{
// This object is being rendered from history, but it got blocked since it was last displayed. Reject this content and get new content.
finalData = _feedItem = GetData(state, false) as FeedItem;
}
if (_feedItem is ImageFeedItem)
{
// visualState = removed ? _largeImage as UserControl : _smallImage as UserControl;
visualState = _smallImage as UserControl;
}
else if (_feedItem is NewsFeedItem)
{
// visualState = removed ? _largeNews as UserControl : _smallNews as UserControl;
visualState = _smallNews as UserControl;
}
else if (_feedItem is StatusFeedItem)
{
// visualState = removed ? _largeTweet as UserControl : _smallTweet as UserControl;
visualState = _smallTweet as UserControl;
}
DataContext = _feedItem;
if (_feedItem is ImageFeedItem && _parentProxy != null)
{
// Disable the item while it's loading.
_parentProxy.IsEnabled = _smallImage.Image.BitmapImage != null;
}
_banBtn.Visibility = _feedItem != null && !string.IsNullOrEmpty(_feedItem.Author) ? Visibility.Visible : Visibility.Hidden;
}
GoToState(visualState);
if (_feedItem != null && DateTime.Now - _feedItem.Date <= Settings.Default.NewItemAlert)
{
// Show the "breaking" animation for new items.
_breaking.Begin(this, Template, true);
}
return finalData;
}
