public EventTriggerBinding(EventTriggerAttributeBindingProvider eventTriggerAttributeBindingProvider,
ParameterInfo parameter,
EventTriggerAttribute trigger)
{
this.eventTriggerAttributeBindingProvider = eventTriggerAttributeBindingProvider;
this.parameter = parameter;
this.trigger = trigger;
// Create the data binding contract..
contract = new Dictionary <string, Type>(StringComparer.OrdinalIgnoreCase)
{
// This binding supports return values of any type
{ "$return", typeof(object).MakeByRefType() },
{ "instanceid", typeof(string) },
};
}
public Task <ITriggerBinding> TryCreateAsync(TriggerBindingProviderContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
ParameterInfo parameter = context.Parameter;
EventTriggerAttribute trigger = parameter.GetCustomAttribute <EventTriggerAttribute>(inherit: false);
if (trigger == null)
{
// We could not bind to an event trigger as there is no attribute so return NULL
return(Task.FromResult <ITriggerBinding>(null));
}
// TODO: Get the details of the event(s) to bind to from the attribute
// TODO: Create the binding
var binding = new EventTriggerBinding(this, parameter, trigger);
return(Task.FromResult <ITriggerBinding>(binding));
}
