using System;
using System.Collections.Generic;

namespace Shared.Phone.UserCenter
{
    /// <summary>
    /// 做成一个点击能够显示选中状态背景色的FrameLayout
    /// </summary>
    public class StatuFrameLayout : FrameLayout
    {
        /// <summary>
        /// Mouse up event.
        /// </summary>
        public delegate void _MouseUpEvent(object sender, MouseEventArgs e);
        /// <summary>
        /// 单击弹起事件
        /// </summary>
        public _MouseUpEvent MouseUpEvent;
        /// <summary>
        /// 状态设置前的事件
        /// </summary>
        public delegate void _SelectStatuEventBefore(bool select);
        /// <summary>
        /// 状态设置前的事件
        /// </summary>
        public _SelectStatuEventBefore SelectStatuEventBefore;
        /// <summary>
        /// 单击按下的坐标
        /// </summary>
        private System.Drawing.PointF downPoint = new System.Drawing.PointF();
        /// <summary>
        /// 子控件列表
        /// </summary>
        private List<Button> listView = new List<Button>();
        /// <summary>
        /// 子控件列表原来的字体颜色
        /// </summary>
        private List<uint> listViewColor = new List<uint>();
        /// <summary>
        /// 当前是否已经处于选择状态
        /// </summary>
        private bool IsSelectStatu = false;

        /// <summary>
        /// 做成一个点击能够显示选中状态背景色的FrameLayout
        /// </summary>
        /// <param name="i_Width">宽度</param>
        /// <param name="i_Height">高度</param>
        /// <param name="real">是否计算真实值</param>
        public StatuFrameLayout(int i_Width, int i_Height, bool real = true)
        {
            if (real == true)
            {
                i_Width = Application.GetRealWidth(i_Width);
                i_Height = Application.GetRealHeight(i_Height);
            }
            this.Height = i_Height;
            this.Width = i_Width;

            this.MouseUpEventHandler += ChildrenUpEvent;
            this.MouseDownEventHandler += ChildrenDownEvent;
        }

        /// <summary>
        /// 做成一个点击能够显示选中状态背景色的FrameLayout
        /// </summary>
        /// <param name="i_Height">高度</param>
        /// <param name="real">是否计算真实值</param>
        public StatuFrameLayout(int i_Height, bool real = true)
        {
            if (real == true)
            {
                i_Height = Application.GetRealHeight(i_Height);
            }
            this.Height = i_Height;
            this.Width = Application.CurrentWidth;
            this.MouseUpEventHandler += ChildrenUpEvent;
            this.MouseDownEventHandler += ChildrenDownEvent;
        }

        /// <summary>
        /// 添加子控件
        /// </summary>
        /// <param name="view">子控件</param>
        /// <param name="chidrenBindMode">绑定模式</param>
        public void AddChidren(View view, ChidrenBindMode chidrenBindMode = ChidrenBindMode.BindAll)
        {
            //绑定子控件事件
            this.BindChidrenEvent(view, chidrenBindMode);

            base.AddChidren(view);
        }

        /// <summary>
        /// 变更子控件的绑定模式
        /// </summary>
        /// <param name="view">子控件</param>
        /// <param name="chidrenBindMode">变更的绑定模式</param>
        public void ChangedChidrenBindMode(View view, ChidrenBindMode chidrenBindMode)
        {
            if (view is Button)
            {
                int index = listView.IndexOf((Button)view);
                if (index >= 0)
                {
                    listView.RemoveAt(index);
                    listViewColor.RemoveAt(index);
                }

                //子控件移除事件
                Button button = (Button)view;
                button.MouseUpEventHandler -= ChildrenUpEvent;
                button.MouseDownEventHandler -= ChildrenDownEvent;

                this.BindChidrenEvent(view, chidrenBindMode);
            }
        }

        /// <summary>
        /// 移除底层控件自身的单击事件
        /// </summary>
        public void RemoveBaseClickEvent()
        {
            this.MouseUpEventHandler -= ChildrenUpEvent;
            this.MouseDownEventHandler -= ChildrenDownEvent;
        }

        /// <summary>
        /// 绑定子控件事件
        /// </summary>
        /// <param name="view"></param>
        /// <param name="chidrenBindMode"></param>
        private void BindChidrenEvent(View view, ChidrenBindMode chidrenBindMode)
        {
            if (view is Button && chidrenBindMode != ChidrenBindMode.NotBind)
            {
                //为子控件添加事件
                Button button = (Button)view;
                button.MouseUpEventHandler -= ChildrenUpEvent;
                button.MouseDownEventHandler -= ChildrenDownEvent;

                button.MouseUpEventHandler += ChildrenUpEvent;
                button.MouseDownEventHandler += ChildrenDownEvent;

                if (chidrenBindMode == ChidrenBindMode.BindAll)
                {
                    listView.Add(button);
                    listViewColor.Add(button.TextColor);
                }
            }
        }

        /// <summary>
        /// 点击按下事件(点亮)
        /// </summary>
        /// <param name="sender">Sender.</param>
        /// <param name="e">E.</param>
        private void ChildrenDownEvent(object sender, MouseEventArgs e)
        {
            this.downPoint.X = e.X;
            this.downPoint.Y = e.Y;

            this.StartSelectStatuThread(ControlCommonResourse.StatuChangedWaitTime);
        }

        /// <summary>
        /// 点击松开事件
        /// </summary>
        /// <param name="sender">Sender.</param>
        /// <param name="e">E.</param>
        private void ChildrenUpEvent(object sender, MouseEventArgs e)
        {
            //移动误差为指定设定值时，判断为滑动行为，不执行弹起事件
            //if (this.IsMoveEvent(e.X, e.Y) == true)
            //{
            //    return;
            //}
            //调用委托
            if (MouseUpEvent != null)
            {
                MouseUpEvent(sender, e);
            }
        }

        /// <summary>
        /// 强制实施控件选中状态
        /// </summary>
        /// <param name="waiTime"></param>
        public void StartSelectStatuThread(int waiTime)
        {
            if (this.IsSelectStatu == true)
            {
                return;
            }
            this.IsSelectStatu = true;

            //设置选择状态
            this.SetSelectStatu();
            new System.Threading.Thread(() =>
            {
                System.Threading.Thread.Sleep(waiTime);
                Application.RunOnMainThread(() =>
                {
                    //设置不选择状态
                    this.SetNotSelectStatu();
                });
            })
            { IsBackground = true }.Start();
        }

        /// <summary>
        /// 设置不选择状态
        /// </summary>
        public void SetNotSelectStatu()
        {
            if (this.SelectStatuEventBefore != null)
            {
                this.SelectStatuEventBefore(false);
            }
            for (int i = 0; i < listView.Count; i++)
            {
                //这是一个图片
                if (!string.IsNullOrEmpty(listView[i].UnSelectedImagePath))
                {
                    listView[i].IsSelected = false;
                }
                //这是一个文本
                else
                {
                    listView[i].TextColor = listViewColor[i];
                }
            }
            this.IsSelectStatu = false;
        }

        /// <summary>
        /// 设置选择状态
        /// </summary>
        public void SetSelectStatu()
        {
            if (this.SelectStatuEventBefore != null)
            {
                this.SelectStatuEventBefore(true);
            }
            for (int i = 0; i < listView.Count; i++)
            {
                //这是一个图片
                if (!string.IsNullOrEmpty(listView[i].SelectedImagePath))
                {
                    listView[i].IsSelected = true;
                }
                //这是一个文本
                else
                {
                    //覆盖之前的颜色,有可能它的颜色被变更了
                    listViewColor[i] = listView[i].TextColor;
                    listView[i].TextColor = UserCenterColor.Current.SelectTextColor;
                }
            }
        }

        /// <summary>
        /// 判断是否移动
        /// </summary>
        /// <param name="XX"></param>
        /// <param name="YY"></param>
        /// <returns></returns>
        private bool IsMoveEvent(float XX, float YY)
        {
            //移动误差为指定设定值时，判断为滑动行为，不执行弹起事件
            float moveValue = 100;

            float value1 = this.downPoint.X - XX;
            if (value1 < 0)
            {
                //转为正数
                value1 = -1 * value1;
            }
            float value2 = this.downPoint.Y - YY;
            if (value2 < 0)
            {
                //转为正数
                value2 = -1 * value2;
            }
            //移动误差为指定设定值时，判断为滑动行为，不执行弹起事件
            if (value1 >= moveValue || value2 >= moveValue)
            {
                return true;
            }
            return false;
        }
    }
}