private void ParseEvents()
{
// Add widget events from control type declaration
_events.AddRange(
from widgetEvent in TypeDescriptor.GetAttributes(Widget).OfType <WidgetEventAttribute>()
select new WidgetEvent(widgetEvent.Name)
);
IAutoPostBackWidget autoPostBackWidget = Widget as IAutoPostBackWidget;
Boolean autoPostBack = autoPostBackWidget == null ? false : autoPostBackWidget.AutoPostBack;
// Add widget events from control events
foreach (EventDescriptor widgetEvent in TypeDescriptor.GetEvents(Widget.GetType()).OfType <EventDescriptor>())
{
WidgetEventAttribute attribute = widgetEvent.Attributes.OfType <WidgetEventAttribute>().SingleOrDefault();
if (attribute == null)
{
continue;
}
WidgetEvent @event = new WidgetEvent(attribute.Name);
@event.CausesPostBack = attribute.AutoPostBack && autoPostBack;
@event.DataChangedEvent = _dataChangedEvent != null && _dataChangedEvent.Name == @event.Name;
_events.Add(@event);
}
}
public JuiceWidgetState(IWidget widget)
{
Widget = widget;
foreach (EventDescriptor widgetEvent in TypeDescriptor.GetEvents(Widget.GetType()).OfType <EventDescriptor>())
{
WidgetEventAttribute attribute = widgetEvent.Attributes.OfType <WidgetEventAttribute>().SingleOrDefault();
if (attribute != null && attribute.DataChangedHandler == true)
{
_dataChangedEvent = new WidgetEvent(attribute.Name);
break;
}
}
_cssManager = new CssManager(widget as Control);
}
public void RaisePostBackEvent(String eventName)
{
LoadPostData();
Type type = Widget.GetType();
foreach (EventDescriptor @event in TypeDescriptor.GetEvents(type).OfType <EventDescriptor>())
{
WidgetEventAttribute attribute = @event.Attributes.OfType <WidgetEventAttribute>().SingleOrDefault();
if (attribute == null || attribute.Name != eventName)
{
continue;
}
FieldInfo delegateField = type.GetField(@event.Name, BindingFlags.Instance | BindingFlags.NonPublic);
MulticastDelegate @delegate = delegateField.GetValue(Widget) as MulticastDelegate;
if (@delegate != null && @delegate.GetInvocationList().Length > 0)
{
@delegate.DynamicInvoke(new object[] { Widget, EventArgs.Empty });
}
}
}
