126 lines
3.7 KiB
C#
126 lines
3.7 KiB
C#
using Demo.Common.Models;
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using Meeting.V2.Demo.ViewModels;
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using Prism.Events;
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using System;
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using System.Threading.Tasks;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Input;
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namespace Meeting.V2.Demo.Views
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{
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/// <summary>
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/// VideoView.xaml 的交互逻辑
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/// </summary>
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public partial class VideoView : UserControl
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{
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public VideoView()
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{
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InitializeComponent();
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}
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public User UserInfo
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{
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get { return (User)GetValue(UserInfoProperty); }
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set { SetValue(UserInfoProperty, value); }
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}
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// Using a DependencyProperty as the backing store for MyProperty. This enables animation, styling, binding, etc...
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public static readonly DependencyProperty UserInfoProperty =
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DependencyProperty.Register("UserInfo", typeof(User), typeof(VideoView), new PropertyMetadata(null, new(OnUserInfoPropertyChangedCallback)));
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private static void OnUserInfoPropertyChangedCallback(DependencyObject d, DependencyPropertyChangedEventArgs e)
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{
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if (d is VideoView videoView )
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{
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var viewDataContext = videoView.DataContext as VideoViewModel;
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viewDataContext.UserInfo = e.NewValue as User;
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}
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}
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#region 控制右上角操作按钮显示与消失
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/// <summary>
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/// 控制操作按钮显示
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/// </summary>
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private bool IsOperVisible = false;
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private void pic_frame_MouseEnter(object sender, EventArgs e)
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{
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btn_oper.Visibility = Visibility.Visible;
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}
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private async void pic_frame_MouseLeave(object sender, EventArgs e)
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{
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// 使用ConfigureAwait(false)可以避免不必要的线程上下文切换
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await Task.Delay(50).ConfigureAwait(false);
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// 如果需要操作UI，使用Dispatcher
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await Application.Current.Dispatcher.InvokeAsync(() =>
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{
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// UI相关操作
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if (!IsOperVisible)
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{
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btn_oper.Visibility = Visibility.Hidden;
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}
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});
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}
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private void btn_oper_MouseEnter(object sender, MouseEventArgs e)
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{
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IsOperVisible = true;
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}
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private async void btn_oper_MouseLeave(object sender, MouseEventArgs e)
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{
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await Task.Delay(50).ConfigureAwait(false);
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IsOperVisible = false;
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}
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#endregion
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#region 命令绑定
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private void ExcuteCommand()
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{
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// 点击操作按钮，触发命令
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Command?.Execute(CommandParameter);
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}
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// 依赖属性定义
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public ICommand Command
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{
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get { return (ICommand)GetValue(CommandProperty); }
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set { SetValue(CommandProperty, value); }
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}
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public static readonly DependencyProperty CommandProperty =
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DependencyProperty.Register("Command", typeof(ICommand), typeof(VideoView), new PropertyMetadata(null));
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public object CommandParameter
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{
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get { return GetValue(CommandParameterProperty); }
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set { SetValue(CommandParameterProperty, value); }
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}
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public static readonly DependencyProperty CommandParameterProperty =
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DependencyProperty.Register("CommandParameter", typeof(object), typeof(VideoView), new PropertyMetadata(null));
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private void pic_frame_MouseDoubleClick(object sender, System.Windows.Forms.MouseEventArgs e)
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{
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ExcuteCommand();
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}
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#endregion
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}
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}
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