Question

为了使任务栏闪烁，我找到了以下代码：https://stackoverflow.com/a/5118285/1830639，它给了我两个我关心的扩展方法：

window.FlashWindow(5);
window.StopFlashingWindow();

我正在创建某种聊天信使，有两个有趣的场景：

当用户点击聊天已打开的聊天时，焦点打开窗口。
当消息到达已打开的聊天时，闪烁打开窗口。

1。我已完成以下任务（https://stackoverflow.com/a/14765848/1830639）：

 public class MetroWindowManager : WindowManager
{
    private IDictionary<WeakReference, WeakReference> windows = new Dictionary<WeakReference, WeakReference>();

    public override void ShowWindow(object rootModel, object context = null, IDictionary<string, object> settings = null)
    {
        NavigationWindow navWindow = null;

        if (Application.Current != null && Application.Current.MainWindow != null)
        {
            navWindow = Application.Current.MainWindow as NavigationWindow;
        }

        if (navWindow != null)
        {
            var window = CreatePage(rootModel, context, settings);
            navWindow.Navigate(window);
        }
        else
        {
            var window = GetExistingWindow(rootModel);
            if (window == null)
            {
                window = CreateWindow(rootModel, false, context, settings);
                windows.Add(new WeakReference(rootModel), new WeakReference(window));
                window.Show();
            }
            else
            {
                window.Focus();
            }
        }

    }

ChatManager ：

 public class ChatManager : IChatManager
{
    private readonly IChatWindowSettings chatWindowSettings;
    private readonly IWindowManager windowManager;
    private IDictionary<WeakReference, WeakReference> chats;

    public ChatManager(IChatWindowSettings chatWindowSettings, IWindowManager windowManager)
    {
        this.chatWindowSettings = chatWindowSettings;
        this.windowManager = windowManager;

        chats = new Dictionary<WeakReference, WeakReference>();
    }

    public void OpenFor(Contact contact)
    {
        var settings = chatWindowSettings.Create();
        var viewModel = CreateOrGetViewModel(contact);
        windowManager.ShowWindow(viewModel, null, settings);
    }

    private ChatViewModel CreateOrGetViewModel(Contact contact)
    {
        ChatViewModel viewModel;
        if (!chats.Any(c => c.Key.IsAlive && c.Key.Target == contact))
        {
            viewModel = new ChatViewModel(contact);
            chats.Add(new WeakReference(contact), new WeakReference(viewModel));
        }
        else
        {
            var chat = chats.Single(d => d.Key.Target == contact).Value;
            if (!chat.IsAlive)
            {
                viewModel = new ChatViewModel(contact);
                chats.Add(new WeakReference(contact), new WeakReference(viewModel));
            }
            else
            {
                viewModel = chat.Target as ChatViewModel;
            }
        }

        return viewModel;
    }

如您所见，我依赖 IWindowManager 界面。现在对于 2。我想到在 IWindowManager Blink（）上实现扩展方法，但是在扩展方法中我不想可以访问我在 MetroWindowManager 中创建的 WeakReferences （ windows 变量）：

 public void MessageFor(Contact contact, IChatMessage message)
    {
        var viewModel = CreateOrGetViewModel(contact);
        windowManager.Blink(viewModel);
    }

有什么想法吗？

Answer 1

我已经弄明白了。如果有人有兴趣，可以分享代码。

我已经创建了自己IWindowManager，扩展了Caliburn.Micro.IWindowManager。问题是如何获得两个接口的相同实例：

/// <summary>
/// Extends Caliburn.Micro.IWindowManager functionalities, such as blinking windows.
/// </summary>
public interface IWindowManager : Caliburn.Micro.IWindowManager
{
    void Blink(object rootModel);
}

<强> MetroWindowManager ：

public class MetroWindowManager : WindowManager, Communicator.Core.IWindowManager
{
    private IDictionary<WeakReference, WeakReference> windows = new Dictionary<WeakReference, WeakReference>();

    public void Blink(object rootModel)
    {
        //have access to 'windows' dictionary
    }

SimpleInjector Bootstrapper ：

var windowManager = new MetroWindowManager();
        container = new Container();
        container.Register<Communicator.Core.IWindowManager>(()=> windowManager);
        container.Register<Caliburn.Micro.IWindowManager>(() => windowManager);

每当我依赖IWindowManager或Caliburn.Micro.IWindowManager时，IoC都会传递相同的实例。

在Caliburn IWindowManager界面中集成闪烁任务栏

1 个答案: