public ListElementEventHandler(IOuterControls outerControls)
{
outerEventRaisers = CreateRaiserDefinitions(outerControls);
addObjectFieldDropRaiser = outerEventRaisers.Single(x =>
x.Control.ClassListContains(UxmlClassNames.AddItemObjectFieldClassName));
this.outerControls = outerControls;
}
public static IEnumerable <EventRaiserDefinition> CreateRaiserDefinitionsForRow(IRowButtons rowButtons,
int index)
{
void SetMoveUpEventData(EventBase @event)
{
SetMoveEventData(@event as MoveItemEvent, MoveItemEvent.MoveDirection.Up);
}
void SetMoveDownEventData(EventBase @event)
{
SetMoveEventData(@event as MoveItemEvent, MoveItemEvent.MoveDirection.Down);
}
void SetRemoveEventData(EventBase @event)
{
SetItemEventData <RemoveItemEvent>(@event as RemoveItemEvent);
}
void SetMoveEventData(MoveItemEvent @event, MoveItemEvent.MoveDirection direction)
{
SetItemEventData <MoveItemEvent>(@event);
@event.Direction = direction;
}
void SetItemEventData <T>(ItemEventBase <T> @event) where T : ItemEventBase <T>, new()
{
if (@event is null)
{
throw new ArgumentException(nameof(@event), $"Expected type: {typeof(T)}");
}
@event.Index = index;
}
return(new List <EventRaiserDefinition>
{
EventRaiserDefinition.Create <MoveItemEvent>(rowButtons.MoveUp,
SetMoveUpEventData),
EventRaiserDefinition.Create <MoveItemEvent>(rowButtons.MoveDown,
SetMoveDownEventData),
EventRaiserDefinition.Create <RemoveItemEvent>(rowButtons.RemoveItem,
SetRemoveEventData)
});
}
public static IEnumerable <EventRaiserDefinition> CreateRaiserDefinitions(IOuterControls controls)
{
void SetExtraEventData(EventBase obj)
{
if (!(obj is AddItemEvent evt))
{
throw new ArgumentException($"Expected type: {typeof(AddItemEvent)}");
}
evt.Item = controls.AddObjectField.value;
}
return(new List <EventRaiserDefinition>
{
EventRaiserDefinition.Create <ClearListRequestedEvent>(controls.ClearList),
EventRaiserDefinition.Create <ClearListEvent>(controls.ClearListConfirm),
EventRaiserDefinition.Create <ClearListCancelledEvent>(controls.ClearListCancel),
EventRaiserDefinition.Create <AddItemEvent>(controls.Add),
EventRaiserDefinition.Create <AddItemEvent>(controls.AddObjectField, SetExtraEventData)
});
}
