using System;

namespace System.ComponentModel.Design
{
	/// <summary>Provides a way to group a series of design-time actions to improve performance and enable most types of changes to be undone.</summary>
	// Token: 0x02000042 RID: 66
	public abstract class DesignerTransaction : IDisposable
	{
		/// <summary>Initializes a new instance of the <see cref="T:System.ComponentModel.Design.DesignerTransaction" /> class with no description.</summary>
		// Token: 0x060002AF RID: 687 RVA: 0x0000972C File Offset: 0x0000792C
		protected DesignerTransaction()
			: this(string.Empty)
		{
		}

		/// <summary>Initializes a new instance of the <see cref="T:System.ComponentModel.Design.DesignerTransaction" /> class using the specified transaction description.</summary>
		/// <param name="description">A description for this transaction. </param>
		// Token: 0x060002B0 RID: 688 RVA: 0x0000973C File Offset: 0x0000793C
		protected DesignerTransaction(string description)
		{
			this.description = description;
			this.committed = false;
			this.canceled = false;
		}

		/// <summary>Releases all resources used by the <see cref="T:System.ComponentModel.Design.DesignerTransaction" />. </summary>
		// Token: 0x060002B1 RID: 689 RVA: 0x0000975C File Offset: 0x0000795C
		void IDisposable.Dispose()
		{
			this.Dispose(true);
		}

		/// <summary>Releases the unmanaged resources used by the <see cref="T:System.ComponentModel.Design.DesignerTransaction" /> and optionally releases the managed resources.</summary>
		/// <param name="disposing">true to release both managed and unmanaged resources; false to release only unmanaged resources. </param>
		// Token: 0x060002B2 RID: 690 RVA: 0x00009768 File Offset: 0x00007968
		protected virtual void Dispose(bool disposing)
		{
			this.Cancel();
			if (disposing)
			{
				GC.SuppressFinalize(true);
			}
		}

		/// <summary>Raises the Cancel event.</summary>
		// Token: 0x060002B3 RID: 691
		protected abstract void OnCancel();

		/// <summary>Performs the actual work of committing a transaction.</summary>
		// Token: 0x060002B4 RID: 692
		protected abstract void OnCommit();

		/// <summary>Cancels the transaction and attempts to roll back the changes made by the events of the transaction.</summary>
		// Token: 0x060002B5 RID: 693 RVA: 0x00009784 File Offset: 0x00007984
		public void Cancel()
		{
			if (!this.Canceled && !this.Committed)
			{
				this.canceled = true;
				this.OnCancel();
			}
		}

		/// <summary>Commits this transaction.</summary>
		// Token: 0x060002B6 RID: 694 RVA: 0x000097AC File Offset: 0x000079AC
		public void Commit()
		{
			if (!this.Canceled && !this.Committed)
			{
				this.committed = true;
				this.OnCommit();
			}
		}

		/// <summary>Gets a value indicating whether the transaction was canceled.</summary>
		/// <returns>true if the transaction was canceled; otherwise, false.</returns>
		// Token: 0x170000C8 RID: 200
		// (get) Token: 0x060002B7 RID: 695 RVA: 0x000097D4 File Offset: 0x000079D4
		public bool Canceled
		{
			get
			{
				return this.canceled;
			}
		}

		/// <summary>Gets a value indicating whether the transaction was committed.</summary>
		/// <returns>true if the transaction was committed; otherwise, false.</returns>
		// Token: 0x170000C9 RID: 201
		// (get) Token: 0x060002B8 RID: 696 RVA: 0x000097DC File Offset: 0x000079DC
		public bool Committed
		{
			get
			{
				return this.committed;
			}
		}

		/// <summary>Gets a description for the transaction.</summary>
		/// <returns>A description for the transaction.</returns>
		// Token: 0x170000CA RID: 202
		// (get) Token: 0x060002B9 RID: 697 RVA: 0x000097E4 File Offset: 0x000079E4
		public string Description
		{
			get
			{
				return this.description;
			}
		}

		/// <summary>Releases the resources associated with this object. This override commits this transaction if it was not already committed.</summary>
		// Token: 0x060002BA RID: 698 RVA: 0x000097EC File Offset: 0x000079EC
		~DesignerTransaction()
		{
			this.Dispose(false);
		}

		// Token: 0x040000C4 RID: 196
		private string description;

		// Token: 0x040000C5 RID: 197
		private bool committed;

		// Token: 0x040000C6 RID: 198
		private bool canceled;
	}
}