private void CheckandSetupBehaviours()
{
if (!(this.DataContext as TweetListViewModel).ShowContentVisibility)
return;
if ((this.DataContext as TweetListViewModel).TitleBarVisible)
{
if (this.unreadmarker == null)
{
this.unreadmarker = new UnreadMarkerListBoxBehavior();
this.unreadmarker.ViewModel = this.DataContext as TweetListViewModel;
}
if (!Interaction.GetBehaviors((DependencyObject) this.tweets).Contains((Behavior) this.unreadmarker))
Interaction.GetBehaviors((DependencyObject) this.tweets).Add((Behavior) this.unreadmarker);
}
if (this.scrollposition == null)
this.scrollposition = new KeepTopScrollerBehavior();
if (!Interaction.GetBehaviors((DependencyObject) this).Contains((Behavior) this.scrollposition))
Interaction.GetBehaviors((DependencyObject) this).Add((Behavior) this.scrollposition);
if (this.animatedtweetlistbox == null)
this.animatedtweetlistbox = new AnimatedTweetListBox();
if (!Interaction.GetBehaviors((DependencyObject) this).Contains((Behavior) this.animatedtweetlistbox))
Interaction.GetBehaviors((DependencyObject) this).Add((Behavior) this.animatedtweetlistbox);
}
private void UserControl_Unloaded(object sender, RoutedEventArgs e)
{
TweetListViewModel tweetListViewModel = this.DataContext as TweetListViewModel;
tweetListViewModel.PropertyChanged -= new PropertyChangedEventHandler(this.TweetListView_PropertyChanged);
if (!tweetListViewModel.IsTransitioningToPinned)
{
tweetListViewModel.Cleanup();
tweetListViewModel.IsTransitioningToPinned = false;
}
if (!(SettingsData.Instance.PopupTarget is Button))
SettingsData.Instance.PopupTarget = (UIElement) null;
SettingsData.Instance.SelectedColumn = (UIElement) null;
SettingsData.Instance.DialogActiveControl = (FrameworkElement) null;
if (this.unreadmarker != null)
Interaction.GetBehaviors((DependencyObject) this.tweets).Remove((Behavior) this.unreadmarker);
if (this.scrollposition != null)
Interaction.GetBehaviors((DependencyObject) this).Remove((Behavior) this.scrollposition);
if (this.animatedtweetlistbox != null)
Interaction.GetBehaviors((DependencyObject) this).Remove((Behavior) this.animatedtweetlistbox);
this.unreadmarker = (UnreadMarkerListBoxBehavior) null;
this.scrollposition = (KeepTopScrollerBehavior) null;
this.animatedtweetlistbox = (AnimatedTweetListBox) null;
}
private void RemoveBehaviours()
{
if (this.unreadmarker != null)
Interaction.GetBehaviors((DependencyObject) this.tweets).Remove((Behavior) this.unreadmarker);
if (this.scrollposition != null)
Interaction.GetBehaviors((DependencyObject) this).Remove((Behavior) this.scrollposition);
if (this.animatedtweetlistbox != null)
Interaction.GetBehaviors((DependencyObject) this).Remove((Behavior) this.animatedtweetlistbox);
this.unreadmarker = (UnreadMarkerListBoxBehavior) null;
this.scrollposition = (KeepTopScrollerBehavior) null;
this.animatedtweetlistbox = (AnimatedTweetListBox) null;
}
private void TweetListView_PropertyChanged(object sender, PropertyChangedEventArgs e)
{
if (e.PropertyName == "ShowContentVisibility" && (this.DataContext as TweetListViewModel).ShowContentVisibility)
{
if ((this.DataContext as TweetListViewModel).TitleBarVisible)
{
this.unreadmarker = new UnreadMarkerListBoxBehavior();
if (this.unreadmarker != null)
Interaction.GetBehaviors((DependencyObject) this.tweets).Add((Behavior) this.unreadmarker);
}
this.scrollposition = new KeepTopScrollerBehavior();
if (this.scrollposition != null)
Interaction.GetBehaviors((DependencyObject) this).Add((Behavior) this.scrollposition);
this.animatedtweetlistbox = new AnimatedTweetListBox();
if (this.animatedtweetlistbox != null)
Interaction.GetBehaviors((DependencyObject) this).Add((Behavior) this.animatedtweetlistbox);
}
if (!(e.PropertyName == "CurrentTweetID") || (this.unreadmarker == null || !(this.DataContext as TweetListViewModel).TitleBarVisible))
return;
this.unreadmarker.SetMarker();
}