--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Implab/ActionChainTask.cs	Fri Apr 22 13:10:34 2016 +0300
@@ -0,0 +1,36 @@
+using System;
+
+namespace Implab {
+    public class ActionChainTask : ActionChainTaskBase, IDeferred {
+        readonly Func<IPromise> m_task;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Implab.ActionChainTask"/> class.
+        /// </summary>
+        /// <param name="task">The operation which will be performed when the <see cref="Resolve()"/> is called.</param>
+        /// <param name="error">The error handler which will invoke when the <see cref="Reject(Exception)"/> is called or when the task fails with an error.</param>
+        /// <param name="cancel">The cancellation handler.</param>
+        /// <param name="autoCancellable">If set to <c>true</c> will automatically accept
+        ///  all cancel requests before the task is started with <see cref="Resolve()"/>,
+        /// after that all requests are directed to the task.</param>
+        public ActionChainTask(Func<IPromise> task, Func<Exception, IPromise> error, Func<Exception, IPromise> cancel, bool autoCancellable) : base(error,cancel, autoCancellable) {
+            m_task = task;
+        }
+
+        public void Resolve() {
+            if (m_task != null && LockCancelation()) {
+                try {
+                    var p = m_task();
+                    p.On(SetResult, HandleErrorInternal, HandleCancelInternal);
+                    CancellationRequested(p.Cancel);
+                } catch (OperationCanceledException reason){
+                    HandleCancelInternal(reason);
+                } catch(Exception err) {
+                    HandleErrorInternal(err);
+                }
+            }
+        }
+
+    }
+}
+