HtmlHistory.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / WinForms / Managed / System / WinForms / HtmlHistory.cs / 1305376 / HtmlHistory.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

using System; 
using System.ComponentModel; 
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis; 
using System.IO;
using System.Drawing;
using System.Drawing.Printing;
using System.Windows.Forms; 
using System.Security.Permissions;
using System.Security; 
using System.Runtime.InteropServices; 
using System.Net;
using System.Globalization; 

namespace System.Windows.Forms {
    /// 
    ///  
    ///    [To be supplied.]
    ///  
    [PermissionSetAttribute(SecurityAction.LinkDemand, Name = "FullTrust")] 
    public sealed class HtmlHistory : IDisposable
    { 
        private UnsafeNativeMethods.IOmHistory htmlHistory;
        private bool disposed;

        [PermissionSet(SecurityAction.Demand, Name = "FullTrust")] 
        internal HtmlHistory(UnsafeNativeMethods.IOmHistory history)
        { 
            this.htmlHistory = history; 
            Debug.Assert(this.NativeOmHistory != null, "The history object should implement IOmHistory");
        } 

        private UnsafeNativeMethods.IOmHistory NativeOmHistory {
            get {
                if (this.disposed) { 
                    throw new System.ObjectDisposedException(GetType().Name);
                } 
                return this.htmlHistory; 
            }
        } 

        /// 
        public void Dispose() {
            this.htmlHistory = null; 
            this.disposed = true;
            GC.SuppressFinalize(this); 
        } 

        ///  
        /// 
        ///    [To be supplied.]
        /// 
        public int Length { 
            get {
                return (int)this.NativeOmHistory.GetLength(); 
            } 
        }
 
        /// 
        /// 
        ///    [To be supplied.]
        ///  
        public void Back(int numberBack) {
            if (numberBack < 0) { 
                throw new ArgumentOutOfRangeException("numberBack", SR.GetString(SR.InvalidLowBoundArgumentEx, "numberBack", numberBack.ToString(CultureInfo.CurrentCulture), (0).ToString(CultureInfo.CurrentCulture))); 
            }
            else if (numberBack > 0) { 
                object oNumForward = (object)(-numberBack);
                this.NativeOmHistory.Go(ref oNumForward);
            }
        } 

        ///  
        ///  
        ///    [To be supplied.]
        ///  
        public void Forward(int numberForward) {
            if (numberForward < 0) {
                throw new ArgumentOutOfRangeException("numberForward", SR.GetString(SR.InvalidLowBoundArgumentEx, "numberForward", numberForward.ToString(CultureInfo.CurrentCulture), (0).ToString(CultureInfo.CurrentCulture)));
            } 
            else if (numberForward > 0) {
                object oNumForward = (object)numberForward; 
                this.NativeOmHistory.Go(ref oNumForward); 
            }
        } 

        /// 
        /// 
        ///    Go to a specific Uri in the history 
        /// 
        [SuppressMessage("Microsoft.Usage", "CA2234:PassSystemUriObjectsInsteadOfStrings")] 
        public void Go(Uri url) 
        {
            Go(url.ToString()); 
        }

        /// 
        ///  
        ///    Go to a specific url(string) in the history
        ///  
        /// Note: We intentionally have a string overload (apparently Mort wants one).  We don't have 
        /// string overloads call Uri overloads because that breaks Uris that aren't fully qualified
        /// (things like "www.microsoft.com") that the underlying objects support and we don't want to 
        /// break.
        [SuppressMessage("Microsoft.Design", "CA1057:StringUriOverloadsCallSystemUriOverloads")]
        public void Go(string urlString)
        { 
            object loc = (object)urlString;
            this.NativeOmHistory.Go(ref loc); 
        } 

        ///  
        /// 
        ///    Go to the specified position in the history list
        /// 
        public void Go(int relativePosition) { 
            object loc = (object)relativePosition;
            this.NativeOmHistory.Go(ref loc); 
        } 

        ///  
        /// 
        ///    [To be supplied.]
        /// 
        public object DomHistory { 
            get {
                return this.NativeOmHistory; 
            } 
        }
    } 
}


// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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