public virtual void Loop()
{
if (this._current == null) return;
//菜单的显示与响应
do
{
this._current.Output();
var cki = Console.ReadKey();
this.Writer.W("\n\n");
var isRightCmd = false;
foreach (var m in this._current.SubMenus)
{
var isVisible = m.DoCheckVisible();
if (isVisible != null && isVisible.Value &&
m.ShortCutKey.ToString().Equals(cki.Key.ToString(), StringComparison.OrdinalIgnoreCase))
{
if (m.SubMenus.Count > 0) this._current = m;
isRightCmd = true;
m.DoAction();
break;
}
}
if (!isRightCmd) Warning();
} while (this._isDoLoop);
}
public MenuItem(Menu owner, MenuItem parent, string caption, string intro, ConsoleKey shortCutKey, Action<MenuItem> action, VisibleChecker visibleChecker)
{
this._owner = owner;
this._parent = parent;
this._caption = caption;
this._intro = intro;
this._shortCutKey = shortCutKey;
this.Action = action;
this.VisibleChecker = visibleChecker;
}
public virtual void Escape()
{
if (this._current.Parent != null)
{
this._current = this._current.Parent;
}
else this._isDoLoop = false;
}
/// <summary>
/// 获取菜单位于树中的路径
/// </summary>
public static string GetLocation(MenuItem cmi)
{
if (cmi == null) return string.Empty;
if (cmi.Parent != null) return MenuItem.GetLocation(cmi.Parent) + "." + cmi.Caption;
return cmi.Caption;
}
/// <summary>
/// 添加“返回上级”菜单
/// </summary>
public virtual MenuItem AddEx(string caption)
{
var cmi = new MenuItem(_owner, this, caption, null, ConsoleKey.Escape, cm => { cm.Owner.Escape(); }, null);
this.SubMenus.Add(cmi);
return cmi;
}
public virtual MenuItem Add(string caption, string intro, ConsoleKey shortCutKey, Action<MenuItem> action, VisibleChecker visibleCheck)
{
var cmi = new MenuItem(_owner, this, caption, intro, shortCutKey, action, visibleCheck);
this.SubMenus.Add(cmi);
return cmi;
}
