void radioListGropus_GroupViewClosing(object sender, GroupViewClosingEventArgs e)
{
e.Cancel = true;
SwivelTransition transition = new SwivelTransition();
ItemContainerGenerator itemContainerGenerator = e.ItemsControl.ItemContainerGenerator;
int animationFinished = 0;
int itemCount = e.ItemsControl.Items.Count;
for (int i = 0; i < itemCount; i++)
{
UIElement element = itemContainerGenerator.ContainerFromIndex(i) as UIElement;
ITransition animation = transition.GetTransition(element);
animation.Completed += delegate
{
// close the group view when all animations have completed
if ((++animationFinished) == itemCount)
{
radioListGropus.CloseGroupView();
radioListGropus.ScrollToGroup(e.SelectedGroup);
}
};
animation.Begin();
}
}
/// <summary>
/// Called when the visual layout changes.
/// </summary>
/// <param name="sender">The event sender.</param>
/// <param name="e">The event information.</param>
private void CustomMessageBox_LayoutUpdated(object sender, EventArgs e)
{
SwivelTransition backwardIn = new SwivelTransition {
Mode = SwivelTransitionMode.BackwardIn
};
ITransition swivelTransition = backwardIn.GetTransition(this);
swivelTransition.Completed += (s1, e1) => swivelTransition.Stop();
swivelTransition.Begin();
LayoutUpdated -= CustomMessageBox_LayoutUpdated;
}
/// <summary>
/// Dismisses the message box.
/// </summary>
/// <param name="source">
/// The source that caused the dismission.
/// </param>
/// <param name="useTransition">
/// If true, the message box is dismissed after swiveling
/// backward and out.
/// </param>
private void Dismiss(CustomMessageBoxResult source, bool useTransition)
{
// Ensure only a single Dismiss is being handled at a time
if (_isBeingDismissed)
{
return;
}
_isBeingDismissed = true;
// Handle the dismissing event.
var handlerDismissing = Dismissing;
if (handlerDismissing != null)
{
DismissingEventArgs args = new DismissingEventArgs(source);
handlerDismissing(this, args);
if (args.Cancel)
{
_isBeingDismissed = false;
return;
}
}
// Set the current instance to null.
_currentInstance = null;
// Cache this variable to avoid a race condition.
bool restoreOriginalValues = _mustRestore;
// Close popup.
if (useTransition)
{
SwivelTransition backwardOut = new SwivelTransition {
Mode = SwivelTransitionMode.BackwardOut
};
ITransition swivelTransition = backwardOut.GetTransition(this);
swivelTransition.Completed += (s, e) =>
{
swivelTransition.Stop();
ClosePopup(restoreOriginalValues, source);
};
swivelTransition.Begin();
}
else
{
ClosePopup(restoreOriginalValues, source);
}
_isBeingDismissed = false;
}
/// <summary>
/// Dismisses the message box.
/// </summary>
/// <param name="source">
/// The source that caused the dismission.
/// </param>
/// <param name="useTransition">
/// If true, the message box is dismissed after swiveling
/// backward and out.
/// </param>
private void Dismiss(CustomMessageBoxResult source, bool useTransition)
{
// Handle the dismissing event.
var handlerDismissing = Dismissing;
if (handlerDismissing != null)
{
DismissingEventArgs args = new DismissingEventArgs(source);
handlerDismissing(this, args);
if (args.Cancel)
{
return;
}
}
// Handle the dismissed event.
var handlerDismissed = Dismissed;
if (handlerDismissed != null)
{
DismissedEventArgs args = new DismissedEventArgs(source);
handlerDismissed(this, args);
}
// Set the current instance to null.
_currentInstance = null;
// Cache this variable to avoid a race condition.
bool restoreOriginalValues = _mustRestore;
// Close popup.
if (useTransition)
{
SwivelTransition backwardOut = new SwivelTransition {
Mode = SwivelTransitionMode.BackwardOut
};
ITransition swivelTransition = backwardOut.GetTransition(this);
swivelTransition.Completed += (s, e) =>
{
swivelTransition.Stop();
ClosePopup(restoreOriginalValues);
};
Deployment.Current.Dispatcher.BeginInvoke(swivelTransition.Begin);
}
else
{
ClosePopup(restoreOriginalValues);
}
}
