105 lines
3.8 KiB
C#
105 lines
3.8 KiB
C#
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using MainShell.Resources.CustomControl;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading;
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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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namespace MainShell.Common
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{
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public static class Loading
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{
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private static LoadingWaitView _view;
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// 全局初始化：在主程序启动或插件加载时调用一次
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public static void Initialize(Window mainWindow)
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{
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if (_view != null) return; // 避免重复加载
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_view = new LoadingWaitView();
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// 获取窗口的根内容
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var rootContent = mainWindow.Content;
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if (rootContent is Panel rootPanel)
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{
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// 如果根部本来就是 Panel (Grid/Canvas等)，直接添加
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rootPanel.Children.Add(_view);
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}
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else if (rootContent is ContentControl contentControl)
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{
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// 如果根部是 ContentControl，我们需要把原本的内容包在一个新的 Grid 里
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var originalContent = contentControl.Content as UIElement;
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contentControl.Content = null;
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var wrapperGrid = new Grid();
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wrapperGrid.Children.Add(originalContent); // 原有内容
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wrapperGrid.Children.Add(_view); // 我们的遮罩层
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contentControl.Content = wrapperGrid;
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}
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// 确保遮罩层铺满并置于顶层
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Grid.SetColumnSpan(_view, 99);
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Grid.SetRowSpan(_view, 99);
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Panel.SetZIndex(_view, 9999);
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}
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// 基础调用：Loading.Show("计算中...");
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public static void Show(string msg, bool isIndeterminate, bool canCancel = true) => LoadingService.Instance.Show(msg, canCancel, isIndeterminate);
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public static void Hide() => LoadingService.Instance.Hide();
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public static void Report(double val) => LoadingService.Instance.Report(val);
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// 获取当前令牌：Loading.Token
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public static CancellationToken Token => LoadingService.Instance.Token;
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// 高级用法：使用 using 块自动开启和关闭
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public static IDisposable Manager(string msg, bool canCancel = true)
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{
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Show(msg, canCancel);
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return new DisposableAction(() => Hide());
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}
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public static async Task<bool> RunAsync(
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Func<CancellationToken, IProgress<double>, Task> work,
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string message,
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bool canCancel = true, bool isIndeterminate = false,
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Action<Exception> onError = null)
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{
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using (Manager(message, canCancel))
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{
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try
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{
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LoadingService.Instance.Show(message, isIndeterminate, canCancel);
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var progress = new Progress<double>(val =>
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Application.Current.Dispatcher.Invoke(() => LoadingService.Instance.ProgressValue = val));
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await Task.Run(() => work(LoadingService.Instance.Token, progress), LoadingService.Instance.Token);
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return true; // 执行成功
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}
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catch (OperationCanceledException)
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{
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// 用户点击了取消，通常不需要弹窗，直接返回 false
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return false;
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}
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catch (Exception ex)
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{
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// 捕获其他所有异常（硬件错误、逻辑错误等）
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if (onError != null)
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onError(ex);
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else
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MessageBox.Show($"操作失败: {ex.Message}", "系统错误", MessageBoxButton.OK, MessageBoxImage.Error);
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return false;
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}
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}
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}
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}
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}
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