在MVP模式中长时间操作的地方设置等待光标的位置？(Where to set wait cursor in long operation in MVP pattern?)

 对于将在演示者中执行的长操作，在哪里设置等待光标？ 
 
 
 
 在视图中？ 该观点不应该太了解业务逻辑，它是被动的。 
 
 
 主持人？ 主持人调用UI代码似乎很奇怪。 
 
 
 向View界面添加方法，如SetWait（bool），并在演示者中调用它？ 
 
 
 所以你怎么看？ 

For a long operation that will be executed in presenter, where to set the wait cursor? 
 
 
 
in View? the view shouldn't know too much about business logic, it is passive.
 
 
in presenter? seems odd in presenter to call UI code.
 
 
add method to View interface, like SetWait(bool), and call it in presenter?
 
 
So what do you think?

原文：https://stackoverflow.com/questions/2544333