using System;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;

namespace MECF.Framework.UI.Client.CenterViews.Dialogs
{
    public partial class FullKeyboard : Window
    {
        //public FullKeyboard()
        //{
        //    InitializeComponent();
        //}
        private String valueString;

        public String ValueString
        {
            get { return valueString; }
        }

        public FullKeyboard(String inputTitle, String inputvalue)
        {
            InitializeComponent();
           
            FullKeyboardTitle.Text = inputTitle;
            tbValue.Text = inputvalue;
           // tbValue.SelectionStart = inputvalue.Length;
            valueString = inputvalue;
        }

        //通过判断按钮的content属性来做对应处理，以简化大量按钮的编程

        private void Button_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            if (e.StylusDevice != null)
            {
                e.Handled = true;
            }
            else
            {
                Button clickedButton = (Button)sender;    //获取click事件触发源，即按了的按钮

                SetButtonValue(clickedButton);
                e.Handled = true;
            }
        }

        private void Button_PreviewTouchDown(object sender, TouchEventArgs e)
        //{
       // private void ButtonGrid_Click(object sender, RoutedEventArgs e)
        {
            Button clickedButton = (Button)sender;    //获取click事件触发源，即按了的按钮
            SetButtonValue(clickedButton);
            e.Handled = true;
        }

        private void Button_PreviewTouchUp(object sender, TouchEventArgs e)
        //{
        // private void ButtonGrid_Click(object sender, RoutedEventArgs e)
        {
            Button clickedButton = (Button)sender;    //获取click事件触发源，即按了的按钮
            SetButtonValue(clickedButton);
            e.Handled = true;
        }

        private void Button_PreviewMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
        {
            if (e.StylusDevice != null)
            {
                e.Handled = true;
            }
            else
            {
                Button clickedButton = (Button)sender;    //获取click事件触发源，即按了的按钮

                SetButtonValue(clickedButton);
                e.Handled = true;
            }
        }

        public bool IsFristClick { get; set; } = true;

        private void SetButtonValue(Button clickedButton)
        {
            if ((String)clickedButton.Content == "Clear")
            {
                tbValue.Text = "";
            }
            else if ((String)clickedButton.Content == "DEL")
            {
                if (tbValue.Text.Length > 0)
                {
                    tbValue.SelectionStart = tbValue.SelectionStart == 0 ? tbValue.Text.Length : tbValue.SelectionStart;
                    if (tbValue.Text.Length > tbValue.SelectionStart)
                    {
                        var selectionIndex = tbValue.SelectionStart;
                        if (tbValue.SelectionStart > 0)
                        {
                            tbValue.Text = tbValue.Text.Remove(tbValue.SelectionStart - 1, 1);
                        }
                        tbValue.SelectionStart = selectionIndex > 0 ? selectionIndex - 1 : 0;
                    }
                    else
                    {
                        tbValue.Text = tbValue.Text.Substring(0, tbValue.Text.Length - 1);
                        tbValue.SelectionStart = tbValue.Text.Length;
                    }
                }
            }
            else if ((String)clickedButton.Content.ToString().ToLower() == "Space".ToLower())
            {
                tbValue.Text += " ";
                tbValue.SelectionStart = tbValue.Text.Length;
            }
            else if ((String)clickedButton.Content == "OK")
            {
                if (tbValue.Text == "") { valueString = " "; }
                else
                {
                    valueString = tbValue.Text;
                }
                this.DialogResult = true;
                this.Close();
            }
            else if ((String)clickedButton.Content == "Cancel")
            {
                this.DialogResult = false;
                this.Close();
            }
            else if ((String)clickedButton.Content == "A/a")
            {
                int count = ButtonGrid.Children.Count;
                for (int i = 0; i < count; i++)//add yujiao 2021/10/25 添加特殊字符
                {
                    Button buttonTemp = ButtonGrid.Children[i] as Button;
                    String contentTemp = buttonTemp.Content as String;
                    var a = contentTemp[0];
                    switch (i)
                    {
                        case 0:
                            buttonTemp.Content = contentTemp[0] > 47 ? "!" : "1";
                            break;
                        case 1:
                            buttonTemp.Content = contentTemp[0] < 57 ? "@" : "2";
                            break;
                        case 2:
                            buttonTemp.Content = contentTemp[0] > 47 ? "#" : "3";
                            break;
                        case 3:
                            buttonTemp.Content = contentTemp[0] > 47 ? "$" : "4";
                            break;
                        case 4:
                            buttonTemp.Content = contentTemp[0] > 47 ? "%" : "5";
                            break;
                        case 5:
                            buttonTemp.Content = contentTemp[0] < 57 ? "^" : "6";
                            break;
                        case 6:
                            buttonTemp.Content = contentTemp[0] > 47 ? "&" : "7";
                            break;
                        case 7:
                            buttonTemp.Content = contentTemp[0] > 47 ? "*" : "8";
                            break;
                        case 8:
                            buttonTemp.Content = contentTemp[0] < 58 ? "_" : "9";
                            break;
                        case 9:
                            buttonTemp.Content = contentTemp[0] > 47 ? "," : "0";
                            break;
                        case 29:
                            buttonTemp.Content = contentTemp[0] < 58 ? ":" : "-";
                            break;
                        case 37:
                            buttonTemp.Content = contentTemp[0] > 82 ? "." : "Space";
                            break;
                            //default:
                    }

                }
                for (int i = 10; i < count - 6; i++)
                {
                    Button buttonTemp = ButtonGrid.Children[i] as Button;
                    String contentTemp = buttonTemp.Content as String;
                    buttonTemp.Content = contentTemp[0] > 90 ? contentTemp.ToUpper() : contentTemp.ToLower();
                }
            }
            else
            {
                if (IsFristClick)
                {
                    IsFristClick = false;
                    tbValue.Text = "";
                }
                var startIndex = tbValue.SelectionStart;
                tbValue.Text = tbValue.Text.Insert(startIndex, (String)clickedButton.Content);
                tbValue.SelectionStart = startIndex + 1;
                //tbValue.Text += (String)clickedButton.Content;
            }
        }
    }
}