public bool TryHandle(object sender, object message)
{
var target = GetReferenceValue();
if (target == null)
{
UnsubscribeEventHandler();
return(false);
}
LastContext.AddOrUpdate(BindingConstants.CurrentEventArgs, message);
WeakReference reference = null;
var command = target as ICommand;
if (command != null)
{
if (sender != null)
{
reference = ServiceProvider.WeakReferenceFactory(sender);
ToolkitExtensions.AddCurrentBindingEventSender(reference);
}
if (_path.IsDebuggable)
{
var parameter = GetCommandParameter(LastContext);
DebugInfo($"Binding invokes command '{command}' with parameter: '{parameter}', event args: '{message}'", new[] { command, parameter, message });
command.Execute(parameter);
}
else
{
command.Execute(GetCommandParameter(LastContext));
}
if (reference != null)
{
ToolkitExtensions.RemoveCurrentBindingEventSender(reference);
}
return(true);
}
var actionValue = target as BindingActionValue;
if (actionValue == null || actionValue.MemberSource.Target == null)
{
UnsubscribeEventHandler();
return(false);
}
if (sender != null)
{
reference = ServiceProvider.WeakReferenceFactory(sender);
ToolkitExtensions.AddCurrentBindingEventSender(reference);
}
if (_path.IsDebuggable)
{
var args = new[] { GetCommandParameter(LastContext), message, LastContext };
DebugInfo($"Binding invokes member '{actionValue.Member.Path}' with parameter: '{args[0]}', event args: '{message}'", args);
actionValue.TrySetValue(args, out target);
}
else
{
actionValue.TrySetValue(new[] { GetCommandParameter(LastContext), message, LastContext }, out target);
}
if (reference != null)
{
ToolkitExtensions.RemoveCurrentBindingEventSender(reference);
}
return(true);
}
