// 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.
//
// Authors:
//
// Copyright (C) 2006 Jordi Mas i Hernandez <jordimash@gmail.com>
//
using System;
using System.ComponentModel;
using System.Threading;
using System.Workflow.ComponentModel;
namespace System.Workflow.Activities{
public sealed class WhileActivity : CompositeActivity
//IActivityEventListener <ActivityExecutionStatusChangedEventArgs>
{
public static readonly DependencyProperty ConditionProperty;
private ActivityCondition activity_condition;
public WhileActivity ()
{
}
public WhileActivity (string name) : base (name)
{
}
// Properties
public ActivityCondition Condition {
get { return activity_condition; }
set { activity_condition = value; }
}
//public Activity DynamicActivity { get; }
// Methods
//protected override ActivityExecutionStatus Cancel(ActivityExecutionContext executionContext);
protected override ActivityExecutionStatus Execute (ActivityExecutionContext executionContext)
{
Activities[0].NeedsExecution = true;
ActivitiesToExecute.Enqueue (Activities[0]);
if (Condition.Evaluate (this, executionContext) == false) {
NeedsExecution = false;
return ActivityExecutionStatus.Closed;
}
NeedsExecution = true;
return ActivityExecutionStatus.Executing;
}
//void IActivityEventListener<ActivityExecutionStatusChangedEventArgs>.OnEvent(object sender, ActivityExecutionStatusChangedEventArgs e);
}
}
|