using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;

namespace LRH.Controls
{
    [TemplatePart(Name = PAET_MIN, Type = typeof(Button))]
    [TemplatePart(Name = PAET_RESTORE, Type = typeof(Button))]
    [TemplatePart(Name = PAET_MAX, Type = typeof(Button))]
    [TemplatePart(Name = PAET_CLOSE, Type = typeof(Button))]
    public class WindowBase:Window
    {
        static WindowBase()
        {
            DefaultStyleKeyProperty.OverrideMetadata(typeof(WindowBase),
               new FrameworkPropertyMetadata(typeof(WindowBase)));
            MinButtonStyleKey = new ComponentResourceKey(typeof(WindowBase), "MinButtonStyle");
            RestoreButtonKey = new ComponentResourceKey(typeof(WindowBase), "RestoreButton");
            MaxButtonStyleKey = new ComponentResourceKey(typeof(WindowBase), "MaxButtonStyle");
            CloseButtonStyleKey = new ComponentResourceKey(typeof(WindowBase), "CloseButtonStyle");
        }
        #region 公开可改写键值信息


        public static ResourceKey MinButtonStyleKey { get; private set; }
        public static ResourceKey RestoreButtonKey { get; private set; }
        public static ResourceKey MaxButtonStyleKey { get; private set; }
        public static ResourceKey CloseButtonStyleKey { get; private set; }
        #endregion
        #region 关联子元素
        public const string PAET_MIN = "PAET_MIN";
        public const string PAET_RESTORE = "PAET_RESTORE";
        public const string PAET_MAX = "PAET_MAX";
        public const string PAET_CLOSE = "PAET_CLOSE";
        #endregion
  
        public override void OnApplyTemplate()
        {
            base.OnApplyTemplate();
            var minButton= GetTemplateChild(PAET_MIN) as Button;
            if(minButton!=null)
            {
                minButton.Click += (s, e) => this.WindowState = WindowState.Minimized;
            }
            
            var restoreButton = GetTemplateChild(PAET_RESTORE) as Button;
            if(restoreButton!=null)
            {
                restoreButton.Click += (s, e) => this.WindowState = WindowState.Normal;
            }
            var maxButton = GetTemplateChild(PAET_MAX) as Button;
            if(maxButton!=null)
            {
                maxButton.Click += (s, e) => this.WindowState = WindowState.Maximized;
            }
            var closeButton = GetTemplateChild(PAET_CLOSE) as Button;
            if(closeButton!=null)
            {
                closeButton.Click += (s, e) => this.Close();
            }       
        }
        public static readonly DependencyProperty AttachMenuProperty = DependencyProperty.Register("AttachMenu",
          typeof(UIElement),
          typeof(WindowBase), new PropertyMetadata(null));
        public UIElement AttachMenu
        {
            get { return this.GetValue(AttachMenuProperty) as UIElement; }
            set { this.SetValue(AttachMenuProperty, value); }
        }
    }
}