protected internal override void BeginTransition(TransitionPresenter transitionElement, ContentPresenter oldContent, ContentPresenter newContent)
{
DoubleAnimation da = new DoubleAnimation(0, Duration);
da.Completed += delegate
{
EndTransition(transitionElement, oldContent, newContent);
};
oldContent.BeginAnimation(UIElement.OpacityProperty, da);
}
protected internal override void BeginTransition(TransitionPresenter transitionElement, ContentPresenter oldContent, ContentPresenter newContent)
{
Storyboard oldStoryboard = OldContentStoryboard;
Storyboard newStoryboard = NewContentStoryboard;
if (oldStoryboard != null || newStoryboard != null)
{
oldContent.Style = OldContentStyle;
newContent.Style = NewContentStyle;
// Flag to determine when both storyboards are done
bool done = oldStoryboard == null || newStoryboard == null;
if (oldStoryboard != null)
{
oldStoryboard = oldStoryboard.Clone();
oldContent.SetValue(OldContentStoryboardProperty, oldStoryboard);
oldStoryboard.Completed += delegate
{
if (done)
EndTransition(transitionElement, oldContent, newContent);
done = true;
};
oldStoryboard.Begin(oldContent, true);
}
if (newStoryboard != null)
{
newStoryboard = newStoryboard.Clone();
newContent.SetValue(NewContentStoryboardProperty, newStoryboard);
newStoryboard.Completed += delegate
{
if (done)
EndTransition(transitionElement, oldContent, newContent);
done = true;
};
newStoryboard.Begin(newContent, true);
}
}
else
{
EndTransition(transitionElement, oldContent, newContent);
}
}
protected override void OnTransitionEnded(TransitionPresenter transitionElement, ContentPresenter oldContent, ContentPresenter newContent)
{
newContent.ClearValue(ContentPresenter.RenderTransformProperty);
oldContent.ClearValue(ContentPresenter.RenderTransformProperty);
}
protected override void OnTransitionEnded(TransitionPresenter transitionElement, ContentPresenter oldContent, ContentPresenter newContent)
{
oldContent.BeginAnimation(UIElement.OpacityProperty, null);
}
//Transitions can override this to perform cleanup at the end of the transition
protected virtual void OnTransitionEnded(TransitionPresenter transitionElement, ContentPresenter oldContent, ContentPresenter newContent)
{
}
//Transitions should call this method when they are done
protected void EndTransition(TransitionPresenter transitionElement, ContentPresenter oldContent, ContentPresenter newContent)
{
OnTransitionEnded(transitionElement, oldContent, newContent);
transitionElement.OnTransitionCompleted();
}
// Called when an element is Removed from the TransitionPresenter's visual tree
protected internal virtual void BeginTransition(TransitionPresenter transitionElement, ContentPresenter oldContent, ContentPresenter newContent)
{
EndTransition(transitionElement, oldContent, newContent);
}
protected override void OnTransitionEnded(TransitionPresenter transitionElement, ContentPresenter oldContent, ContentPresenter newContent)
{
Storyboard oldStoryboard = (Storyboard)oldContent.GetValue(OldContentStoryboardProperty);
if (oldStoryboard != null)
oldStoryboard.Stop(oldContent);
oldContent.ClearValue(ContentPresenter.StyleProperty);
Storyboard newStoryboard = (Storyboard)newContent.GetValue(NewContentStoryboardProperty);
if (newStoryboard != null)
newStoryboard.Stop(newContent);
newContent.ClearValue(ContentPresenter.StyleProperty);
}
protected internal override void BeginTransition(TransitionPresenter transitionElement, ContentPresenter oldContent, ContentPresenter newContent)
{
TranslateTransform tt = new TranslateTransform(StartPoint.X * transitionElement.ActualWidth, StartPoint.Y * transitionElement.ActualHeight);
if (IsNewContentTopmost)
newContent.RenderTransform = tt;
else
oldContent.RenderTransform = tt;
DoubleAnimation da = new DoubleAnimation(EndPoint.X * transitionElement.ActualWidth, Duration);
tt.BeginAnimation(TranslateTransform.XProperty, da);
da.To = EndPoint.Y * transitionElement.ActualHeight;
da.Completed += delegate
{
EndTransition(transitionElement, oldContent, newContent);
};
tt.BeginAnimation(TranslateTransform.YProperty, da);
}
