private static void OnTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
DependencyObject target = d;
if (e.OldValue != null)
{
InteractivityTemplate interactivityTemplate = (InteractivityTemplate)e.OldValue;
InteractivityItems interactivityItems = (InteractivityItems)interactivityTemplate.LoadContent();
BehaviorCollection behaviorCollection = Interaction.GetBehaviors(target);
TriggerCollection triggerCollection = Interaction.GetTriggers(target);
interactivityItems.Behaviors.ForEach(x => behaviorCollection.Remove(x));
interactivityItems.Triggers.ForEach(x => triggerCollection.Remove(x));
}
if (e.NewValue != null)
{
InteractivityTemplate interactivityTemplate = (InteractivityTemplate)e.NewValue;
interactivityTemplate.Seal();
InteractivityItems interactivityItems = (InteractivityItems)interactivityTemplate.LoadContent();
BehaviorCollection behaviorCollection = Interaction.GetBehaviors(target);
TriggerCollection triggerCollection = Interaction.GetTriggers(target);
interactivityItems.Behaviors.ForEach(behaviorCollection.Add);
interactivityItems.Triggers.ForEach(triggerCollection.Add);
}
}
/// <summary>
/// This is used to refresh the binding when our parent's binding changes
/// For some reason in WinRT, when the parent's binding is changed due to
/// inheritance, our binding does not get refreshed. This code is an attempt
/// to work around that issue.
/// </summary>
/// <param name="dpo"></param>
/// <param name="e"></param>
private static void DataContextChanged(DependencyObject dpo, DependencyPropertyChangedEventArgs e)
{
foreach (var pt in Interaction.GetTriggers(dpo))
{
pt.SetupBinding();
}
foreach (var pb in Interaction.GetBehaviors(dpo))
{
pb.SetupBinding();
}
}
protected override void OnAttached()
{
var triggers = Interaction_
.GetTriggers(AssociatedObject)
.OfType <EventTrigger>();
var actions = triggers
.First(t => t.EventName == "Closing")
.Actions
.OfType <InvokeCommandAction>();
_commandAction = actions.First();
AssociatedObject.Closing += _windowClosingHandler;
}
private static void OnTemplateChanged(
DependencyObject d,
DependencyPropertyChangedEventArgs e)
{
InteractivityTemplate dt = (InteractivityTemplate)e.NewValue;
#if (!SILVERLIGHT)
dt.Seal();
#endif
InteractivityItems ih = (InteractivityItems)dt.LoadContent();
BehaviorCollection bc = Interaction.GetBehaviors(d);
TriggerCollection tc = Interaction.GetTriggers(d);
foreach (Behavior behavior in ih.Behaviors)
{
bc.Add(behavior);
}
foreach (TriggerBase trigger in ih.Triggers)
{
tc.Add(trigger);
}
}
