/// <summary>Invokes an event and and executes an action unless the event is cancelled.</summary>
/// <param name="preHandlers">The event handler to signal.</param>
/// <param name="item">The item affected by this operation.</param>
/// <param name="sender">The source of the event.</param>
/// <param name="finalAction">The default action to execute if the event didn't signal cancel.</param>
public static void InvokeEvent(EventHandler <CancellableItemEventArgs> preHandlers, ContentItem item, object sender, Action <ContentItem> finalAction, EventHandler <ItemEventArgs> postHandlers)
{
if (preHandlers != null && (VersionsTriggersEvents || !item.VersionOf.HasValue))
{
CancellableItemEventArgs args = new CancellableItemEventArgs(item, finalAction);
preHandlers.Invoke(sender, args);
if (!args.Cancel)
{
args.FinalAction(args.AffectedItem);
if (postHandlers != null)
{
postHandlers(sender, args);
}
}
}
else
{
finalAction(item);
if (postHandlers != null)
{
postHandlers(sender, new ItemEventArgs(item));
}
}
}
/// <summary>Invokes an event and and executes an action unless the event is cancelled.</summary>
/// <param name="handler">The event handler to signal.</param>
/// <param name="item">The item affected by this operation.</param>
/// <param name="sender">The source of the event.</param>
/// <param name="finalAction">The default action to execute if the event didn't signal cancel.</param>
public static void InvokeEvent(EventHandler <CancellableItemEventArgs> handler, ContentItem item, object sender, Action <ContentItem> finalAction)
{
if (handler != null && (VersionsTriggersEvents || item.VersionOf == null))
{
CancellableItemEventArgs args = new CancellableItemEventArgs(item, finalAction);
handler.Invoke(sender, args);
if (!args.Cancel)
{
args.FinalAction(args.AffectedItem);
}
}
else
{
finalAction(item);
}
}