112 lines
4.2 KiB
C#
112 lines
4.2 KiB
C#
namespace Melskin.Controls;
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/// <summary>
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/// 通知管理器类，提供显示系统通知的方法。
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/// 该类主要用于在应用程序中方便地创建和显示不同类型的通知。
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/// </summary>
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public static class Notification
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{
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// 数据结构现在存储 Notification 模型，而不是 Window
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private static readonly Dictionary<NotificationPlacement, List<Tuple<NotificationModel, NotificationView>>> ActiveNotifications =
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new()
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{
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{ NotificationPlacement.TopRight, [] },
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{ NotificationPlacement.TopLeft, [] },
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{ NotificationPlacement.BottomRight, [] },
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{ NotificationPlacement.BottomLeft, [] }
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};
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private static readonly object Lock = new();
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/// <summary>
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/// 显示系统通知。
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/// </summary>
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/// <param name="title">通知的标题。</param>
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/// <param name="message">通知的内容消息。</param>
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/// <param name="type">通知的类型，默认为信息类型。</param>
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/// <param name="placement">通知在屏幕上的位置，默认为右上角。</param>
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/// <param name="durationSeconds">通知显示的持续时间（秒），默认为5秒。</param>
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public static void Show(string title, string message, NotificationType type = NotificationType.Info,
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NotificationPlacement placement = NotificationPlacement.TopRight, int durationSeconds = 5)
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{
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Application.Current.Dispatcher.Invoke(() =>
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{
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var model = new NotificationModel(title, message, type, TimeSpan.FromSeconds(durationSeconds));
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// 修改这里：在创建 view 时传入 placement
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var view = new NotificationView(model, placement);
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// 后续代码完全不变
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view.Ready += (v) => OnNotificationReady(v, placement);
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view.Closed += (_, _) => OnNotificationClosed(view, placement);
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view.Show();
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});
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}
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private static void OnNotificationReady(NotificationView view, NotificationPlacement placement)
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{
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lock (Lock)
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{
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ActiveNotifications[placement].Add(new Tuple<NotificationModel, NotificationView>(view.Model, view));
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Reposition(placement);
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}
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}
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private static void OnNotificationClosed(NotificationView view, NotificationPlacement placement)
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{
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lock (Lock)
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{
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var itemToRemove = ActiveNotifications[placement].FirstOrDefault(t => t.Item2 == view);
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if (itemToRemove != null)
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{
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ActiveNotifications[placement].Remove(itemToRemove);
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Reposition(placement);
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}
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}
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}
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private static void Reposition(NotificationPlacement placement)
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{
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var notifications = ActiveNotifications[placement];
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if (!notifications.Any()) return;
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var workArea = SystemParameters.WorkArea;
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double currentTop;
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var isTop = placement == NotificationPlacement.TopLeft || placement == NotificationPlacement.TopRight;
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if (isTop)
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{
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currentTop = workArea.Top + 10;
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}
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else // Bottom
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{
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// 对于底部，我们需要先计算总高度
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var totalHeight = notifications.Sum(t => t.Item2.ActualHeight + 10);
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currentTop = workArea.Bottom - totalHeight;
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}
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foreach (var tuple in notifications)
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{
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var view = tuple.Item2;
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// 在 `Ready` 事件之后，ActualWidth/Height 已经是准确的了
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var finalLeft = (placement == NotificationPlacement.TopRight || placement == NotificationPlacement.BottomRight)
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? workArea.Right - view.ActualWidth - 10
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: workArea.Left + 10;
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// 检查这个窗口是否是新来的（通过透明度判断）
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if (view.Opacity == 0)
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{
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// 如果是新的，命令它播放入场动画
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view.AnimateIn(finalLeft, currentTop);
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}
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else
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{
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// 如果是已经存在的，命令它平滑移动到新位置
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view.AnimateMove(currentTop);
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}
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currentTop += view.ActualHeight + 10; // 为下一个窗口计算Y坐标
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}
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}
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} |