private void Init()
{
// 加入焦点监听管理器
FocusListenManager.AddListener(this);
// 用事件监听子控件集合的添加或移除
this.AddingChildControl += FocusListener_AddingChildControl;
this.RemovingChildControl += FocusListener_RemovingChildControl;
}
private void ChildControl_GotFocus(object sender, EventArgs e)
{
Debug.WriteLine($"[{this.GetType().ToString()}]ChildControl_GotFocus - sender:{((Control)sender).Name}");
// 回调事件
GotFocus?.Invoke(sender, e);
// 修改获得焦点时的记录
isOnFocus = true;
lastOnFocusControl = (Control)sender;
// 得到焦点后，除了要自身响应焦点事件外，还需要通知所有FocusListener
FocusListenManager.Broadcast(FocusEvent.Got, this, (Control)sender);
}
static FocusListenManager()
{
manager = new FocusListenManager();
}