/// <summary>
/// Executes the handler immediately if the element is loaded, otherwise wires it to the Loaded event.
/// </summary>
/// <param name="element">The element.</param>
/// <param name="handler">The handler.</param>
/// <returns>true if the handler was executed immediately; false otherwise</returns>
public static bool ExecuteOnLoad(System.Windows.FrameworkContentElement element, RoutedEventHandler handler)
{
#if SILVERLIGHT
if ((bool)element.GetValue(IsLoadedProperty))
{
#elif WinRT
if (IsElementLoaded(element))
{
#else
if (element.IsLoaded)
{
#endif
handler(element, new RoutedEventArgs());
return(true);
}
RoutedEventHandler loaded = null;
loaded = (s, e) => {
element.Loaded -= loaded;
#if SILVERLIGHT
element.SetValue(IsLoadedProperty, true);
#endif
handler(s, e);
};
element.Loaded += loaded;
return(false);
}
// Token: 0x0600031A RID: 794 RVA: 0x00008CE3 File Offset: 0x00006EE3
private static void UpdateIsLoadedCache(FrameworkContentElement fce, DependencyObject parent)
{
if (fce.GetValue(FrameworkElement.LoadedPendingProperty) == null)
{
fce.IsLoadedCache = BroadcastEventHelper.IsLoadedHelper(parent);
return;
}
fce.IsLoadedCache = false;
}
/// <summary>
/// Updates the IsLoadedCache on the current FrameworkContentElement
/// </summary>
private static void UpdateIsLoadedCache(
FrameworkContentElement fce,
DependencyObject parent)
{
if (fce.GetValue(FrameworkElement.LoadedPendingProperty) == null)
{
// Propagate the change to your logical ancestry
fce.IsLoadedCache = IsLoadedHelper(parent);
}
else
{
// Clear the cache if Loaded is pending
fce.IsLoadedCache = false;
}
}
/// <summary>
/// Updates the IsLoadedCache on the current FrameworkContentElement
/// </summary>
private static void UpdateIsLoadedCache(
FrameworkContentElement fce,
DependencyObject parent)
{
if (fce.GetValue(FrameworkElement.LoadedPendingProperty) == null)
{
// Propagate the change to your logical ancestry
fce.IsLoadedCache = IsLoadedHelper(parent);
}
else
{
// Clear the cache if Loaded is pending
fce.IsLoadedCache = false;
}
}
