WeakEventManager.cs :  » 2.6.4-mono-.net-core » System.Windows » System » Windows » C# / CSharp Open Source

//
// WeakEventManager.cs
//
// Author:
//   Chris Toshok (toshok@ximian.com)
//
// (C) 2007 Novell, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

using System.Collections;
using System.Windows.Threading;

namespace System.Windows{

  public abstract class WeakEventManager : DispatcherObject
  {
    Hashtable sourceData;

    protected WeakEventManager ()
    {
      sourceData = new Hashtable ();
    }

    protected IDisposable ReadLock {
      get { throw new NotImplementedException (); }
    }

    protected IDisposable WriteLock {
      get { throw new NotImplementedException (); }
    }

    protected object this [object source] {
      get { return sourceData[source]; }
      set { sourceData[source] = value; }
    }

    protected void DeliverEvent (object sender, EventArgs args)
    {
      DeliverEventToList (sender, args, (ListenerList)this[sender]);
    }

    protected void DeliverEventToList (object sender, EventArgs args, ListenerList list)
    {
      for (int i = 0; i < list.Count; i ++) {
        IWeakEventListener listener = list[i];
        listener.ReceiveWeakEvent (GetType(), sender, args);
      }
    }

    protected void ProtectedAddListener (object source, IWeakEventListener listener)
    {
      ListenerList list = sourceData[source] as ListenerList;
      if (list != null)
        list.Add (listener);
    }

    protected void ProtectedRemoveListener (object source, IWeakEventListener listener)
    {
      ListenerList list = sourceData[source] as ListenerList;
      if (list != null)
        list.Remove (listener);
    }

    protected virtual bool Purge (object source, object data, bool purgeAll)
    {
      throw new NotImplementedException ();
    }

    protected void Remove (object source)
    {
      throw new NotImplementedException ();
    }

    protected void ScheduleCleanup ()
    {
      throw new NotImplementedException ();
    }

    protected abstract void StartListening (object source);
    protected abstract void StopListening (object source);


    protected static WeakEventManager GetCurrentManager (Type managerType)
    {
      throw new NotImplementedException ();
    }

    protected static void SetCurrentManager (Type managerType, WeakEventManager manager)
    {
      throw new NotImplementedException ();
    }


    protected class ListenerList
    {
      public ListenerList ()
      {
        throw new NotImplementedException ();
      }

      public ListenerList (int capacity)
      {
        throw new NotImplementedException ();
      }

      public int Count {
        get { throw new NotImplementedException (); }
      }

      public static ListenerList Empty {
        get { throw new NotImplementedException (); }
      }

      public bool IsEmpty {
        get { throw new NotImplementedException (); }
      }

      public IWeakEventListener this[int index] {
        get { throw new NotImplementedException (); }
      }

      public void Add (IWeakEventListener listener)
      {
        throw new NotImplementedException ();
      }

      public bool BeginUse ()
      {
        throw new NotImplementedException ();
      }

      public WeakEventManager.ListenerList Clone ()
      {
        throw new NotImplementedException ();
      }

      public void EndUse ()
      {
        throw new NotImplementedException ();
      }

      public static bool PrepareForWriting (ref WeakEventManager.ListenerList list)
      {
        throw new NotImplementedException ();
      }

      public bool Purge ()
      {
        throw new NotImplementedException ();
      }

      public void Remove (IWeakEventListener listener)
      {
        throw new NotImplementedException ();
      }
    }
  }

}