// 事件由下往上传递
public virtual void onKeyEvent(KeyEvent keyEvent)
{
if (this.Parent != null)
{
this.Parent.onKeyEvent(keyEvent);
}
else
{
Console.WriteLine("All not process!");
}
}
public override void onKeyEvent(KeyEvent keyEvent)
{
if (keyEvent.Type == Event.EEventType.LISTEN)
{
Console.WriteLine(this.ToString() + " command over!");
}
else
{
Console.WriteLine(this.ToString() + " not process!");
base.onKeyEvent(keyEvent);
}
}
static void test_responsibility_mode()
{
/*
* 责任链模式：将请求的发送者和接收者之间解耦，使多个对象都有机会处理这个请求。
* 将这些对象连成一条链，并沿着这条链传递该请求，直到有一个对象处理它。
*/
Console.WriteLine("\n---------------- test responsibility --------------------\n");
KeyEvent keyEvent = new KeyEvent(Event.EEventType.READ);
SystemEvent systemEvent = new SystemEvent(Event.EEventType.READ);
Processor processor_a = new ProcessorA(null);
Processor processor_b = new ProcessorB(processor_a);
Processor processor_c = new ProcessorC(processor_b);
Processor processor_d = new ProcessorD(processor_c);
Console.WriteLine("\n---- from top to bottom\n");
processor_a.onSystemEvent(systemEvent);
Console.WriteLine("\n---- from bottom to top\n");
processor_d.onKeyEvent(keyEvent);
}