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//
// System.ComponentModel.Design.DesignerTransaction.cs
//
// Author:
// Alejandro Sánchez Acosta (raciel@es.gnu.org)
// Andreas Nahr (ClassDevelopment@A-SoftTech.com)
//
// (C) Alejandro Sánchez Acosta
// (C) 2003 Andreas Nahr
// Copyright (C) 2005 Novell, Inc (http://www.novell.com)
//
// 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.
//
namespace System.ComponentModel.Design
{
public abstract class DesignerTransaction : IDisposable
{
private string description;
private bool committed;
private bool canceled;
public DesignerTransaction ()
: this ("")
{
}
public DesignerTransaction (string description)
{
this.description = description;
this.committed = false;
this.canceled = false;
}
void IDisposable.Dispose ()
{
Dispose (true);
}
protected virtual void Dispose (bool disposing)
{
Cancel ();
if (disposing) {
GC.SuppressFinalize (true);
}
}
protected abstract void OnCancel ();
protected abstract void OnCommit ();
public void Cancel ()
{
// LAMESPEC Cannot find anything about the exact behavior, but I do some checks that
// seem to make sense
if (this.Canceled == false && this.Committed == false) {
this.canceled = true;
OnCancel ();
}
}
public void Commit ()
{
// LAMESPEC Cannot find anything about the exact behavior, but I do some checks that
// seem to make sense
if (this.Canceled == false && this.Committed == false) {
this.committed = true;
OnCommit ();
}
}
public bool Canceled {
get {
return canceled;
}
}
public bool Committed {
get {
return committed;
}
}
public string Description {
get {
return description;
}
}
~DesignerTransaction ()
{
Dispose (false);
}
}
}
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