WinHtmlEditor/HtmlEditor.cs

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using System;
using System.ComponentModel;
using System.Configuration;
using System.Drawing;
using System.Globalization;
#if VS2010
using System.Linq;
#endif
using System.Text;
using System.Text.RegularExpressions;
using System.Runtime.InteropServices;
using System.IO;
using System.Threading;
using System.Windows.Forms;
using WinHtmlEditor.Properties;
using System.Diagnostics;
using mshtmlTextRange = mshtml.IHTMLTxtRange;
using mshtmlSelection = mshtml.IHTMLSelectionObject;
using mshtmlDocument = mshtml.HTMLDocument;
using mshtmlBody = mshtml.HTMLBody;
using mshtmlControlRange = mshtml.IHTMLControlRange;
using mshtmlElement = mshtml.IHTMLElement;
using mshtmlEventObject = mshtml.IHTMLEventObj;
using mshtmlElementCollection = mshtml.IHTMLElementCollection;
using mshtmlAnchorElement = mshtml.IHTMLAnchorElement;
using mshtmlDomNode = mshtml.IHTMLDOMNode;
using mshtmlStyle = mshtml.IHTMLStyle;
using mshtmlIHTMLDocument2 = mshtml.IHTMLDocument2;

using mshtmlTable = mshtml.IHTMLTable;
using mshtmlTableCaption = mshtml.IHTMLTableCaption;
using mshtmlTableRow = mshtml.IHTMLTableRow;
using Pavonis.COM;
using Pavonis.COM.IOleCommandTarget;
using System.IO.Compression;

namespace WinHtmlEditor
{
    [Docking(DockingBehavior.Ask), ComVisible(true), ClassInterface(ClassInterfaceType.AutoDispatch), ToolboxBitmap(typeof(HtmlEditor), "Resources.HTML.bmp")]
    public sealed partial class HtmlEditor : UserControl
    {
        /// <summary>
        /// Public event that is raised if an internal processing exception is found
        /// </summary>
        [Category("Exception"), Description("An Internal Processing Exception was encountered")]
        public event HtmlExceptionEventHandler HtmlException;

        /// <summary>
        /// Public event that is raised if navigation event is captured
        /// </summary>
        [Category("Navigation"), Description("A Navigation Event was encountered")]
        public event HtmlNavigationEventHandler HtmlNavigation;

        // browser html constan expressions
        private const string BLANK_HTML_PAGE = "about:blank";

        // define the tags being used by the application
        private const string ANCHOR_TAG = "A";
        private const string TABLE_TAG = "TABLE";
        private const string SELECT_TYPE_TEXT = "text";