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

//
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// Copyright 2009 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
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// 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
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//

using Mono;
using System;
using System.Threading;
using System.Collections.Generic;

namespace System.Windows.Messaging{

  public sealed partial class LocalMessageReceiver : INativeDependencyObjectWrapper, IDisposable
  {
    public static readonly IEnumerable<string> AnyDomain = new List<string> { "*" };

    public LocalMessageReceiver (string receiverName)
      : this (receiverName,
        ReceiverNameScope.Domain,
        AnyDomain)
    {
    }

    public LocalMessageReceiver (string receiverName,
               ReceiverNameScope nameScope,
               IEnumerable<string> allowedSenderDomains)
      : this (NativeMethods.local_message_receiver_new (receiverName,
                    (int)nameScope), true)
    {
      int i = 0;
      foreach (string s in allowedSenderDomains)
        i ++;

      string[] sender_domains = new string[i];
      i = 0;

      foreach (string s in allowedSenderDomains)
        sender_domains[i++] = s;

      NativeMethods.local_message_receiver_set_allowed_sender_domains (NativeHandle, sender_domains, sender_domains.Length);
    }

    internal LocalMessageReceiver (IntPtr raw, bool dropref)
    {
      NativeHandle = raw;
      if (dropref)
        NativeMethods.event_object_unref (raw);
    }

    ~LocalMessageReceiver ()
    {
      Free ();
    }

    void Free ()
    {
      if (free_mapping) {
        free_mapping = false;
        NativeDependencyObjectHelper.FreeNativeMapping (this);
      }
    }

    public void Listen()
    {
      NativeMethods.local_message_receiver_listen (NativeHandle);
    }

    public void Dispose ()
    {
      NativeMethods.local_message_receiver_dispose (NativeHandle);
    }

    public IEnumerable<string> AllowedSenderDomains {
      get { return allowedSenderDomains; }
    }

    [MonoTODO ("is this IE specific?")]
    public bool DisableSenderTrustCheck {
      get { return disableSenderTrustCheck; }
      set { disableSenderTrustCheck = value; }
    }

    public ReceiverNameScope NameScope {
      get { return (ReceiverNameScope)NativeMethods.local_message_receiver_get_receiver_name_scope (NativeHandle); }
    }

    public string ReceiverName {
      get { return NativeMethods.local_message_receiver_get_receiver_name (NativeHandle); }
    }

    public event EventHandler<MessageReceivedEventArgs> MessageReceived {
      add { RegisterEvent (EventIds.LocalMessageReceiver_MessageReceivedEvent, value, Events.CreateMessageReceivedEventArgsEventHandlerDispatcher (value)); }
      remove { UnregisterEvent (EventIds.LocalMessageReceiver_MessageReceivedEvent, value); }
    }

    IEnumerable<string> allowedSenderDomains;
    bool disableSenderTrustCheck;

    bool free_mapping;

#region "INativeDependencyObjectWrapper interface"
    IntPtr _native;

    internal IntPtr NativeHandle {
      get { return _native; }
      set {
        if (_native != IntPtr.Zero) {
          throw new InvalidOperationException ("native handle is already set");
        }

        _native = value;

        free_mapping = NativeDependencyObjectHelper.AddNativeMapping (value, this);
      }
    }

    IntPtr INativeEventObjectWrapper.NativeHandle {
      get { return NativeHandle; }
      set { NativeHandle = value; }
    }

    object INativeDependencyObjectWrapper.GetValue (DependencyProperty dp)
    {
      return NativeDependencyObjectHelper.GetValue (this, dp);
    }

    void INativeDependencyObjectWrapper.SetValue (DependencyProperty dp, object value)
    {
      NativeDependencyObjectHelper.SetValue (this, dp, value);
    }

    object INativeDependencyObjectWrapper.GetAnimationBaseValue (DependencyProperty dp)
    {
      return NativeDependencyObjectHelper.GetAnimationBaseValue (this, dp);
    }

    object INativeDependencyObjectWrapper.ReadLocalValue (DependencyProperty dp)
    {
      return NativeDependencyObjectHelper.ReadLocalValue (this, dp);
    }

    void INativeDependencyObjectWrapper.ClearValue (DependencyProperty dp)
    {
      NativeDependencyObjectHelper.ClearValue (this, dp);
    }

    Kind INativeEventObjectWrapper.GetKind ()
    {
      return Kind.LOCALMESSAGERECEIVER;
    }

    bool INativeDependencyObjectWrapper.CheckAccess ()
    {
      return Thread.CurrentThread == DependencyObject.moonlight_thread;
    }
#endregion

    private EventHandlerList EventList = new EventHandlerList ();

    private void RegisterEvent (int eventId, Delegate managedHandler, UnmanagedEventHandler nativeHandler)
    {
      if (managedHandler == null)
        return;

      int token = Events.AddHandler (this, eventId, nativeHandler);
      EventList.AddHandler (eventId, token, managedHandler, nativeHandler);
    }

    private void UnregisterEvent (int eventId, Delegate managedHandler)
    {
      UnmanagedEventHandler nativeHandler = EventList.RemoveHandler (eventId, managedHandler);

      if (nativeHandler == null)
        return;

      Events.RemoveHandler (this, eventId, nativeHandler);
    }

  }
}