BPASmartClient/BPASmartClient.CustomResource/Pages/View/LoginView.xaml.cs

using BPASmartClient.CustomResource.Pages.Model;
using BPASmartClient.Helper;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;

namespace BPASmartClient.CustomResource.Pages.View
{
    /// <summary>
    /// LoginView.xaml 的交互逻辑
    /// </summary>
    public partial class LoginView : Window
    {
        public LoginView()
        {
            InitializeComponent();
            grid.Visibility = Visibility.Collapsed;

            Username.SelectionStart = Username.Text.Trim().Length;
            this.Loaded += LoginView_Loaded;
            ActionManage.GetInstance.Register(new Action(() =>
            {
                if (this.IsVisible)
                {
                    this.DialogResult = true;
                    this.Close();
                }
            }), "LoginOk", true);
            ActionManage.GetInstance.Register(new Action(() => { this.DialogResult = false; this.Close(); }), "ExitAction", true);
        }

        private void LoginView_Loaded(object sender, RoutedEventArgs e)
        {
            string path = $"{AppDomain.CurrentDomain.BaseDirectory}Videos\\Login.mp4";
            if (File.Exists(path))
            {
                player.Source = new Uri(path);  // 绑定视频文件
                this.WindowState = WindowState.Maximized;
                player.LoadedBehavior = MediaState.Manual; // 交互式控制
                player.Loaded += new RoutedEventHandler(media_Loaded);  // 添加元素加载完成事件 -- 自动开始播放
                player.MediaEnded += new RoutedEventHandler(media_MediaEnded); // 添加媒体播放结束事件 -- 重新播放
                player.Unloaded += new RoutedEventHandler(media_Unloaded);// 添加元素卸载完成事件 -- 停止播放
                player.MediaOpened += Player_MediaOpened;//已播放事件
            }
        }

        private void Player_MediaOpened(object sender, RoutedEventArgs e)
        {
            grid.Visibility = Visibility.Visible;
            Username.Focus();
        }

        private void media_Loaded(object sender, RoutedEventArgs e)
        {
            (sender as MediaElement).Play();
        }

        private void media_MediaEnded(object sender, RoutedEventArgs e)
        {
            // MediaElement需要先停止播放才能再开始播放，
            // 否则会停在最后一帧不动
            (sender as MediaElement).Stop();
            (sender as MediaElement).Play();
        }

        private void media_Unloaded(object sender, RoutedEventArgs e)
        {
            (sender as MediaElement).Stop();
        }

        private void PasswordBox_PasswordChanged(object sender, RoutedEventArgs e)
        {
            this.markText.Visibility = this.pb.Password.Length > 0 ? Visibility.Collapsed : Visibility.Visible;
        }

        private void TextBox_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.Key == Key.Enter) pb.Focus();
        }

        private void pb_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.Key == Key.Enter) ActionManage.GetInstance.Send("EnterLogin");
        }
    }
}