如何整合WPF NotifyIcon與Caliburn.Micro

Question

我想知道如何將NotifyIcon與Caliburn.Micro整合。

我正在嘗試使用低級Caliburn API與Caliburn集成。下面是類：

ITrayIconManager

public interface ITrayIconManager 
{ 
    ITrayIcon GetOrCreateFor<T>(); 
} 

ITrayIcon（包裝紙圍繞TaskbarIcon從WPF的NotifyIcon）

public interface ITrayIcon : IDisposable 
{ 
    void ShowBalloonTip(string title, string message, BalloonIcon symbol); 
    void Show(); 
    void Hide(); 
} 

ISetTrayIconInstance

public interface ISetTrayIconInstance 
{ 
    ITrayIcon Icon { set; } 
} 

TrayIconWrapper

public class TrayIconWrapper : ITrayIcon 
{ 
    private readonly TaskbarIcon icon; 

    public TrayIconWrapper(TaskbarIcon icon) 
    { 
     this.icon = icon; 
    } 

    public bool IsDisposed { get; private set; } 

    public void Dispose() 
    { 
     icon.Dispose(); 
     IsDisposed = true; 
    } 

    public void Show() 
    { 
     icon.Visibility = Visibility.Visible; 
    } 

    public void Hide() 
    { 
     icon.Visibility = Visibility.Collapsed; 
    } 

    public void ShowBalloonTip(string title, string message, BalloonIcon symbol) 
    { 
     icon.ShowBalloonTip(title, message, symbol); 
    } 
} 

TrayIconManager

public class TrayIconManager : ITrayIconManager 
{ 
    private readonly IDictionary<WeakReference, WeakReference> icons; 

    public TrayIconManager() 
    { 
     icons = new Dictionary<WeakReference, WeakReference>(); 
    } 

    public ITrayIcon GetOrCreateFor<T>() 
    { 
     if (!icons.Any(i => i.Key.IsAlive && typeof(T).IsAssignableFrom(i.Key.Target.GetType()))) 
      return Create<T>(); 

     var reference = icons.First(i => i.Key.IsAlive && typeof(T).IsAssignableFrom(i.Key.Target.GetType())).Value; 
     if (!reference.IsAlive) 
      return Create<T>(); 

     var wrapper = (TrayIconWrapper)reference.Target; 
     if (wrapper.IsDisposed) 
      return Create<T>(); 

     return wrapper; 
    } 

    private ITrayIcon Create<T>() 
    { 
     var rootModel = IoC.Get<T>(); 
     var view = ViewLocator.LocateForModel(rootModel, null, null); 
     var icon = view is TaskbarIcon ? (TaskbarIcon)view : new TaskbarIcon(); 
     var wrapper = new TrayIconWrapper(icon); 

     ViewModelBinder.Bind(rootModel, view, null); 
     SetIconInstance(rootModel, wrapper); 
     icons.Add(new WeakReference(rootModel), new WeakReference(wrapper)); 

     return wrapper; 
    } 

    private void SetIconInstance(object rootModel, ITrayIcon icon) 
    { 
     var instance = rootModel as ISetTrayIconInstance; 
     if (instance != null) 
      instance.Icon = icon; 
    } 
} 

這是代碼，現在我該如何使用它？此代碼依賴於卡利視圖 - 視圖模型結合，那就是，我需要創建一個視圖模型爲TasbarkIcon的圖，（其中必須繼承從TaskbarIcon控制）：

TrayIconViewModel

public class TrayIconViewModel : IMainTrayIcon, ISetTrayIconInstance 
{ 
    public TrayIconViewModel() 
    { 

    } 

    public ITrayIcon Icon { get; set; } 

    public void ShowWindow() 
    { 
     Icon.Hide(); 
     System.Windows.Application.Current.MainWindow.Show(); //very very bad :(
    } 

ITrayIcon是TaskbarIcon控件的包裝。現在我可以從ViewModel調用它，這非常棒。

TrayIconView（CAL：消息：連接不工作 - 的ShowWindow從來沒有被擊中）

<tb:TaskbarIcon x:Class="Communicator.Softphone.Views.TrayIconView" 
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
      xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
      xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
      xmlns:tb="http://www.hardcodet.net/taskbar" 
      xmlns:cal="http://www.caliburnproject.org" 
      mc:Ignorable="d" 
      d:DesignHeight="300" d:DesignWidth="300" 
      IconSource="/Communicator.ControlLibrary;component/Assets/phone_icon.ico" 
      ToolTipText="Secretária do Futuro - Comunicador" 
      Visibility="Collapsed" 
      cal:Message.Attach="[Event TrayLeftMouseDown] = [Action ShowWindow()]"> 

在我ShellViewModel（托盤圖標是TaskbarIcon周圍的包裝）：

private ITrayIcon trayIcon; 
protected override void OnActivate() 
    { 
     trayIcon = trayIconManager.GetOrCreateFor<IMainTrayIcon>(); 
     ActivateItem(containers.FirstOfType<IPhone>()); 
    } 
public override void CanClose(Action<bool> callback) 
    { 
     trayIcon.Show(); 
     trayIcon.ShowBalloonTip("Comunicador", "Comunicador foi minimizado", BalloonIcon.Info); 
     (GetView() as Window).Hide(); 
     callback(false); 
    } 

trayIcon.Show()正在工作，但trayIcon.ShowBallonTip(...)不做任何事情，沒有錯誤，沒有什麼。

問題總結：

1. 綁定Message.Attach不工作，雖然這個卡利輸出日誌消息，因爲它是工作。
2. 調用ShowBallonTip 包裝似乎不工作，雖然它調用實際的TaskbarIcon方法。（它的工作原理沒有附加調試器）

Answer 1

完整的答案：

ITrayIcon.cs

裹TaskbarIcon控制，所以你可以呼籲TaskbarIcon方法，而不必在你的視圖模型實際引用。

public interface ITrayIcon : IDisposable 
{ 
    void Show(); 
    void Hide(); 
    void ShowBalloonTip(string title, string message); 
    void ShowBalloonTip(object rootModel, PopupAnimation animation, TimeSpan? timeout = null); 
    void CloseBalloon(); 
} 

ISetTrayIconInstance.cs

public interface ISetTrayIconInstance 
{ 
    ITrayIcon Icon { set; } 
} 

ITrayIconManager.cs

管理TasbarIcon實例。只要你喜歡，你可以擁有儘可能多的TasbarIcon實例。

public interface ITrayIconManager 
{ 
    ITrayIcon GetOrCreateFor<T>(); 
} 

TrayIconWrapper.cs

實現從卡利ViewModelBinder利用。 ShowBallonTip作品一樣IWindowManager.ShowWindow(object rootModel...)呢。它通過ViewLocator實現視圖，將您的rootModel綁定到它，然後傳遞到TaskbarIcon.ShowCustomBallon(UIElement element...。

public class TrayIconWrapper : ITrayIcon 
{ 
    private readonly TaskbarIcon icon; 

    public TrayIconWrapper(TaskbarIcon icon) 
    { 
     this.icon = icon; 
    } 

    public bool IsDisposed { get; private set; } 

    public void Dispose() 
    { 
     icon.Dispose(); 
     IsDisposed = true; 
    } 

    public void Show() 
    { 
     icon.Visibility = Visibility.Visible; 
    } 

    public void Hide() 
    { 
     icon.Visibility = Visibility.Collapsed; 
    } 

    public void ShowBalloonTip(string title, string message) 
    { 
     icon.ShowBalloonTip(title, message, BalloonIcon.Info); 
    } 

    public void ShowBalloonTip(object rootModel, PopupAnimation animation, TimeSpan? timeout = null) 
    { 
     var view = ViewLocator.LocateForModel(rootModel, null, null); 
     ViewModelBinder.Bind(rootModel, view, null); 

     icon.ShowCustomBalloon(view, animation, timeout.HasValue ? (int)timeout.Value.TotalMilliseconds : (int?)null); 
    } 

    public void CloseBalloon() 
    { 
     icon.CloseBalloon(); 
    } 
} 

TrayIconManager.cs

我們需要跟蹤的實例化TaskbarIcon年代。這個類是粘合在一起的粘合劑。需要一些TaskbarIcon的實例？詢問TrayIconManager，它會創建一個（如果它尚未創建並且已經存在）並將其返回給您。泛型類型是管理TaskbarIcon實例的視圖模型的類型。

public class TrayIconManager : ITrayIconManager 
{ 
    private readonly IDictionary<WeakReference, WeakReference> icons; 

    public TrayIconManager() 
    { 
     icons = new Dictionary<WeakReference, WeakReference>(); 
    } 

    public ITrayIcon GetOrCreateFor<T>() 
    { 
     if (!icons.Any(i => i.Key.IsAlive && typeof(T).IsAssignableFrom(i.Key.Target.GetType()))) 
      return Create<T>(); 

     var reference = icons.First(i => i.Key.IsAlive && typeof(T).IsAssignableFrom(i.Key.Target.GetType())).Value; 
     if (!reference.IsAlive) 
      return Create<T>(); 

     var wrapper = (TrayIconWrapper)reference.Target; 
     if (wrapper.IsDisposed) 
      return Create<T>(); 

     return wrapper; 
    } 

    private ITrayIcon Create<T>() 
    { 
     var rootModel = IoC.Get<T>(); 
     var view = ViewLocator.LocateForModel(rootModel, null, null); 
     var icon = view is TaskbarIcon ? (TaskbarIcon)view : new TaskbarIcon(); 
     var wrapper = new TrayIconWrapper(icon); 

     ViewModelBinder.Bind(rootModel, view, null); 
     SetIconInstance(rootModel, wrapper); 
     icons.Add(new WeakReference(rootModel), new WeakReference(wrapper)); 

     return wrapper; 
    } 

    private void SetIconInstance(object rootModel, ITrayIcon icon) 
    { 
     var instance = rootModel as ISetTrayIconInstance; 
     if (instance != null) 
      instance.Icon = icon; 
    } 
} 

如何使用：

1. 創建視圖，從TaskbarIcon繼承：

TrayIconView.xaml

<tb:TaskbarIcon x:Class="Communicator.Softphone.Views.TrayIconView" 
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
      xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
      xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
      xmlns:tb="http://www.hardcodet.net/taskbar" 
      xmlns:cal="http://www.caliburnproject.org" 
      mc:Ignorable="d" 
      d:DesignHeight="300" d:DesignWidth="300" 
      IconSource="/Communicator.ControlLibrary;component/Assets/phone_icon.ico" 
      ToolTipText="Secretária do Futuro - Comunicador" 
      cal:Message.Attach="[Event TrayLeftMouseDown] = [Action ShowWindow()]" 
      TrayLeftMouseDown="TaskbarIcon_TrayLeftMouseDown"> 

創建視圖的視圖模型：

TrayIconViewModel.cs

public class TrayIconViewModel : ISetTrayIconInstance 
{ 
    public TrayIconViewModel() 
    { 

    } 

    public ITrayIcon Icon { get; set; } 

    public void ShowWindow() 
    { 
     System.Windows.Application.Current.MainWindow.Show(); //very very bad :(
    } 
} 

在任何地方通過ITrayIconManager進行Instanciate。例如，在OnActivat方法您ShellViewModel的：

protected override void OnActivate() 
{ 
    trayIcon = trayIconManager.GetOrCreateFor<TrayIconViewModel>(); 
} 

只要你喜歡使用。舉例來說，在我的ChatManager：

public void NewMessage(IChatMessage message) 
{ 
    trayIcon = trayIconManager.GetOrCreateFor<TrayIconViewModel>(); 
    var notification = new ChatNotificationViewModel(message); 
    trayIcon.ShowBalloonTip(notification, PopupAnimation.Slide, TimeSpan.FromSeconds(5)); 
} 

Answer 2

你可以使用事件聚集，做你想做什麼。

文檔：http://caliburnmicro.com/documentation/event-aggregator

添加一個字段，你TaskbarViewModel的事件聚集，並添加一個構造函數，以適應注射：

public class TaskbarViewModel : PropertyChangedBase, ITaskbar { 
    private readonly IEventAggregator _eventAggregator; 

    public TaskbarViewModel(IEventAggregator eventAggregator) { 
     _eventAggregator = eventAggregator; 
    } 

    public void Show() { 
     IsVisible = true; 
     _eventAggregator.PublishOnUIThread("Your balloontip message"); 
    } 

    /// Rest of the implementation 
} 

落實IHandle界面，您可以訪問TaskBarIcon並調用ShowBalloonTip方法。