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/***************************************************************************
* NetworkDetect.cs
*
* Copyright (C) 2005 Novell
* Written by Aaron Bockover (aaron@aaronbock.net)
****************************************************************************/
/* THIS FILE IS LICENSED UNDER THE MIT LICENSE AS OUTLINED IMMEDIATELY BELOW:
*
* 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;
using Mono.Unix;
using NetworkManager;
namespace lat
{
public delegate void NetworkStateChangedHandler(object o, NetworkStateChangedArgs args);
public class NetworkStateChangedArgs : EventArgs
{
public bool Connected;
}
public class NetworkDetect : IDisposable
{
public event NetworkStateChangedHandler StateChanged;
private Manager nm_manager;
private State current_state;
private static NetworkDetect instance;
public static NetworkDetect Instance {
get {
if(instance == null) {
instance = new NetworkDetect();
}
return instance;
}
}
public void Dispose()
{
if(nm_manager != null) {
nm_manager.Dispose();
}
}
private NetworkDetect()
{
try {
ConnectToNetworkManager();
} catch(Exception e) {
nm_manager = null;
Console.WriteLine ("Cannot connect to NetworkManager; Assuming working connection");
Console.WriteLine (e.Message);
}
}
private void ConnectToNetworkManager()
{
nm_manager = new Manager();
nm_manager.StateChange += OnNetworkManagerEvent;
nm_manager.DeviceNowActive += OnNetworkManagerEvent;
nm_manager.DeviceNoLongerActive += OnNetworkManagerEvent;
current_state = nm_manager.State;
}
private void OnNetworkManagerEvent(object o, EventArgs args)
{
try {
State new_state = nm_manager.State;
if(new_state != current_state && (new_state == State.Connected || new_state == State.Disconnected)) {
current_state = new_state;
NetworkStateChangedHandler handler = StateChanged;
if(handler != null) {
NetworkStateChangedArgs state_changed_args = new NetworkStateChangedArgs();
state_changed_args.Connected = Connected;
handler(this, state_changed_args);
}
Device active_device = nm_manager.ActiveDevice;
if(Connected && active_device != null) {
Console.WriteLine ("Network Connection Established", String.Format("{0} ({1})",
active_device.Name, active_device.IP4Address));
} else if(Connected) {
Console.WriteLine ("Network Connection Established", "Active Device Unknown");
} else {
Console.WriteLine ("Network Connection Unavailable", "Disconnected");
}
}
} catch(Exception) {
}
}
public bool Connected {
get {
return nm_manager == null ? true : current_state == State.Connected;
}
}
public Manager Manager {
get {
return nm_manager;
}
}
}
}
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