93 lines
2.8 KiB
C#
93 lines
2.8 KiB
C#
using UIShare.GlobalVariable;
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using Logger;
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using Prism.Ioc;
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using Prism.Mvvm;
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using System;
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using System.Collections.ObjectModel;
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using System.Reflection;
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using System.Windows.Input;
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using System.Windows.Media;
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using UIShare.ViewModelBase;
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namespace TestingModule.ViewModels
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{
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public class LogAreaViewModel : NavigateViewModelBase, IDisposable
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{
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// 日志集合
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private ObservableCollection<LogItem> _logs = new();
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public ObservableCollection<LogItem> Logs
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{
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get => _logs;
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set => SetProperty(ref _logs, value);
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}
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public ICommand ClearLogCommand { get; set; }
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private readonly ScopedContext _scopedContext;
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private readonly GlobalInfo _globalInfo;
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private IProgress<(string Message, Brush Color, int Depth)>? _logProgress;
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public LogAreaViewModel(IContainerProvider containerProvider) : base(containerProvider)
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{
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ClearLogCommand = new DelegateCommand(ClearLog);
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_scopedContext = containerProvider.Resolve<ScopedContext>();
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_globalInfo = containerProvider.Resolve<GlobalInfo>();
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// 创建本作用域专属的日志接收器并注册到 ScopedContext
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_logProgress = new Progress<(string Message, Brush Color, int Depth)>(log =>
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{
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if (Logs == null) return;
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Logs.Add(new LogItem(log.Message, log.Color, log.Depth));
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});
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_scopedContext.LogProgress = _logProgress;
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}
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private void ClearLog()
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{
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Logs?.Clear();
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}
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/// <summary>
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/// 完善后的资源释放方法
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/// </summary>
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public void Dispose()
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{
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try
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{
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// 注销本作用域的日志接收器，避免 Dispose 后仍收到旧消息
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if (_scopedContext != null && _scopedContext.LogProgress == _logProgress)
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{
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_scopedContext.LogProgress = null;
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}
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_logProgress = null;
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if (Logs != null)
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{
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Logs.Clear();
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Logs = null!;
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}
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}
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catch (Exception ex)
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{
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Logger.LoggerHelper.ErrorWithNotify(_scopedContext != null ? _globalInfo.CurrentScope : "", $"释放日志组件（LogAreaViewModel）资源失败: {ex.Message}");
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}
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}
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}
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// 日志条目类
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public class LogItem
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{
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public string Message { get; set; }
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public Brush Color { get; set; } = Brushes.Black;
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public int Depth { get; set; }
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public LogItem(string message, Brush color, int depth = 0)
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{
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Message = new string(' ', depth * 20) + message;
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Color = color;
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Depth = depth;
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}
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}
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}
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