2 // Martin Baulig (martin.baulig@xamarin.com)
4 // Copyright 2012 Xamarin Inc. (http://www.xamarin.com)
7 // Permission is hereby granted, free of charge, to any person obtaining
8 // a copy of this software and associated documentation files (the
9 // "Software"), to deal in the Software without restriction, including
10 // without limitation the rights to use, copy, modify, merge, publish,
11 // distribute, sublicense, and/or sell copies of the Software, and to
12 // permit persons to whom the Software is furnished to do so, subject to
13 // the following conditions:
15 // The above copyright notice and this permission notice shall be
16 // included in all copies or substantial portions of the Software.
18 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
21 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
22 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
23 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
24 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 using System.Threading;
30 [MonoTODO ("Use SynchronizationContext / ThreadPool.")]
31 public class Progress<T> : IProgress<T> {
33 SynchronizationContext ctx;
37 ctx = SynchronizationContext.Current;
40 public Progress (Action<T> handler)
42 this.handler = handler;
43 ctx = SynchronizationContext.Current;
46 void Invoke (Action action)
49 ctx.Post (_ => action (), null);
51 ThreadPool.QueueUserWorkItem (_ => action ());
54 protected virtual void OnReport (T value)
59 if (ProgressChanged != null)
60 ProgressChanged (this, value);
64 void IProgress<T>.Report (T value)
69 public event EventHandler<T> ProgressChanged;