60 lines
2.0 KiB
C#
60 lines
2.0 KiB
C#
|
//-----------------------------------------------------------------------------
|
||
|
|
// Copyright (c) Microsoft Corporation. All rights reserved.
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
namespace System.Activities.Runtime
|
||
|
|
{
|
||
|
|
using System;
|
||
|
|
using System.Runtime;
|
||
|
|
using System.Runtime.Serialization;
|
||
|
|
using System.Collections.Generic;
|
||
|
|
|
||
|
|
[DataContract]
|
||
|
|
class CompletionBookmark
|
||
|
|
{
|
||
|
|
CompletionCallbackWrapper callbackWrapper;
|
||
|
|
|
||
|
|
public CompletionBookmark()
|
||
|
|
{
|
||
|
|
// Called when we want to use the special completion callback
|
||
|
|
}
|
||
|
|
|
||
|
|
public CompletionBookmark(CompletionCallbackWrapper callbackWrapper)
|
||
|
|
{
|
||
|
|
this.callbackWrapper = callbackWrapper;
|
||
|
|
}
|
||
|
|
|
||
|
|
[DataMember(EmitDefaultValue = false, Name = "callbackWrapper")]
|
||
|
|
internal CompletionCallbackWrapper SerializedCallbackWrapper
|
||
|
|
{
|
||
|
|
get { return this.callbackWrapper; }
|
||
|
|
set { this.callbackWrapper = value; }
|
||
|
|
}
|
||
|
|
|
||
|
|
public void CheckForCancelation()
|
||
|
|
{
|
||
|
|
Fx.Assert(this.callbackWrapper != null, "We must have a callback wrapper if we are calling this.");
|
||
|
|
this.callbackWrapper.CheckForCancelation();
|
||
|
|
}
|
||
|
|
|
||
|
|
public WorkItem GenerateWorkItem(ActivityInstance completedInstance, ActivityExecutor executor)
|
||
|
|
{
|
||
|
|
if (this.callbackWrapper != null)
|
||
|
|
{
|
||
|
|
return this.callbackWrapper.CreateWorkItem(completedInstance, executor);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// Variable defaults and argument expressions always have a parent
|
||
|
|
// and never have a CompletionBookmark
|
||
|
|
if (completedInstance.State != ActivityInstanceState.Closed && completedInstance.Parent.HasNotExecuted)
|
||
|
|
{
|
||
|
|
completedInstance.Parent.SetInitializationIncomplete();
|
||
|
|
}
|
||
|
|
|
||
|
|
return new EmptyWithCancelationCheckWorkItem(completedInstance.Parent, completedInstance);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|