实例介绍
【实例简介】
【实例截图】
【核心代码】
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";
private const string SELECT_TYPE_CONTROL = "control";
private const string SELECT_TYPE_NONE = "none";
// define commands for mshtml execution execution
private const string HTML_COMMAND_FONTNAME = "FontName";
private const string HTML_COMMAND_FONTSIZE = "FontSize";
private const string HTML_COMMAND_PRINT = "Print";
private const string HTML_COMMAND_COPY = "Copy";
private const string HTML_COMMAND_PASTE = "Paste";
private const string HTML_COMMAND_CUT = "Cut";
private const string HTML_COMMAND_DELETE = "Delete";
private const string HTML_COMMAND_UNDO = "Undo";
private const string HTML_COMMAND_REDO = "Redo";
private const string HTML_COMMAND_REMOVE_FORMAT = "RemoveFormat";
private const string HTML_COMMAND_JUSTIFY_CENTER = "JustifyCenter";
private const string HTML_COMMAND_JUSTIFY_FULL = "JustifyFull";
private const string HTML_COMMAND_JUSTIFY_LEFT = "JustifyLeft";
private const string HTML_COMMAND_JUSTIFY_RIGHT = "JustifyRight";
private const string HTML_COMMAND_UNDERLINE = "Underline";
private const string HTML_COMMAND_ITALIC = "Italic";
private const string HTML_COMMAND_BOLD = "Bold";
private const string HTML_COMMAND_BACK_COLOR = "BackColor";
private const string HTML_COMMAND_FORE_COLOR = "ForeColor";
private const string HTML_COMMAND_STRIKE_THROUGH = "StrikeThrough";
private const string HTML_COMMAND_CREATE_LINK = "CreateLink";
private const string HTML_COMMAND_UNLINK = "Unlink";
private const string HTML_COMMAND_INSERT_HORIZONTAL_RULE = "InsertHorizontalRule";
private const string HTML_COMMAND_INSERT_IMAGE = "InsertImage";
private const string HTML_COMMAND_OUTDENT = "Outdent";
private const string HTML_COMMAND_INDENT = "Indent";
private const string HTML_COMMAND_INSERT_UNORDERED_LIST = "InsertUnorderedList";
private const string HTML_COMMAND_INSERT_ORDERED_LIST = "InsertOrderedList";
private const string HTML_COMMAND_SUPERSCRIPT = "Superscript";
private const string HTML_COMMAND_SUBSCRIPT = "Subscript";
private const string HTML_COMMAND_SELECT_ALL = "SelectAll";
// internal command constants
private const string INTERNAL_COMMAND_NEW = "New";
private const string INTERNAL_COMMAND_OPEN = "Open";
private const string INTERNAL_COMMAND_PRINT = "Print";
private const string INTERNAL_COMMAND_SAVE = "Save";
private const string INTERNAL_COMMAND_PREVIEW = "Preview";
private const string INTERNAL_COMMAND_SHOWHTML = "ShowHTML";
private const string INTERNAL_COMMAND_COPY = "Copy";
private const string INTERNAL_COMMAND_PASTE = "Paste";
private const string INTERNAL_COMMAND_CUT = "Cut";
private const string INTERNAL_COMMAND_DELETE = "Delete";
private const string INTERNAL_COMMAND_UNDO = "Undo";
private const string INTERNAL_COMMAND_REDO = "Redo";
private const string INTERNAL_COMMAND_FIND = "Find";
private const string INTERNAL_COMMAND_REMOVE_FORMAT = "RemoveFormat";
private const string INTERNAL_COMMAND_JUSTIFYCENTER = "JustifyCenter";
private const string INTERNAL_COMMAND_JUSTIFYFULL = "JustifyFull";
private const string INTERNAL_COMMAND_JUSTIFYLEFT = "JustifyLeft";
private const string INTERNAL_COMMAND_JUSTIFYRIGHT = "JustifyRight";
private const string INTERNAL_COMMAND_UNDERLINE = "Underline";
private const string INTERNAL_COMMAND_ITALIC = "Italic";
private const string INTERNAL_COMMAND_BOLD = "Bold";
private const string INTERNAL_COMMAND_BACKCOLOR = "BackColor";
private const string INTERNAL_COMMAND_FORECOLOR = "ForeColor";
private const string INTERNAL_COMMAND_STRIKETHROUGH = "StrikeThrough";
private const string INTERNAL_COMMAND_CREATELINK = "CreateLink";
private const string INTERNAL_COMMAND_UNLINK = "Unlink";
private const string INTERNAL_COMMAND_INSERTTABLE = "InsertTable";
private const string INTERNAL_COMMAND_TABLEPROPERTIES = "TableModify";
private const string INTERNAL_COMMAND_TABLEINSERTROW = "TableInsertRow";
private const string INTERNAL_COMMAND_TABLEDELETEROW = "TableDeleteRow";
private const string INTERNAL_COMMAND_INSERTIMAGE = "InsertImage";
private const string INTERNAL_COMMAND_INSERTHORIZONTALRULE = "InsertHorizontalRule";
private const string INTERNAL_COMMAND_OUTDENT = "Outdent";
private const string INTERNAL_COMMAND_INDENT = "Indent";
private const string INTERNAL_COMMAND_INSERTUNORDEREDLIST = "InsertUnorderedList";
private const string INTERNAL_COMMAND_INSERTORDEREDLIST = "InsertOrderedList";
private const string INTERNAL_COMMAND_SUPERSCRIPT = "Superscript";
private const string INTERNAL_COMMAND_SUBSCRIPT = "Subscript";
private const string INTERNAL_COMMAND_SELECTALL = "SelectAll";
private const string INTERNAL_COMMAND_WORDCOUNT = "WordCount";
private const string INTERNAL_COMMAND_INSERTDATE = "InsertDate";
private const string INTERNAL_COMMAND_INSERTTIME = "InsertTime";
private const string INTERNAL_COMMAND_CLEARWORD = "ClearWord";
private const string INTERNAL_COMMAND_AUTOLAYOUT = "AutoLayout";
private const string INTERNAL_COMMAND_ABOUT = "About";
// constants for displaying the HTML dialog
private const string CONTENT_EDITABLE_INHERIT = "inherit";
private const string HTML_TITLE_EDIT = "Edit Html";
private const string DEFAULT_HTML_TEXT = "";
private const string BODY_PARSE_PRE_EXPRESSION = @"(<body).*?(</body)";
private const string BODY_PARSE_EXPRESSION = @"(?<bodyOpen>(<body).*?>)(?<innerBody>.*?)(?<bodyClose>(</body\s*>))";
private const string BODY_DEFAULT_TAG = @"<Body></Body>";
private const string BODY_TAG_PARSE_MATCH = @"${bodyOpen}${bodyClose}";
private const string BODY_INNER_PARSE_MATCH = @"${innerBody}";
// browser constants and commands
private object EMPTY_PARAMETER;
// internal body property values
private bool _readOnly;
private HtmlFontProperty _bodyFont;
private Color _bodyBackColor;
private Color _bodyForeColor;
private int[] _customColors;
private readonly NavigateActionOption _navigateWindow;
private DisplayScrollBarOption _scrollBars;
private bool _autoWordWrap;
// default values used to reset values
private readonly Color _defaultBodyBackColor;
private readonly Color _defaultBodyForeColor;
private readonly HtmlFontProperty _defaultFont;
// internal property values
private string _bodyText;
private string _bodyHtml;
private string _bodyUrl;
private bool _toolbarVisible;
private bool _statusbarVisible;
private bool _wbVisible;
// document and body elements
private mshtmlDocument document;
private mshtmlIHTMLDocument2 _doc;
// find and replace internal text range
private mshtmlTextRange _findRange;
private volatile bool rebaseUrlsNeeded;
private volatile bool loading;
private volatile bool codeNavigate;
private mshtmlBody body;
private bool _updatingFontName;
private bool _updatingFontSize;
public class EnterKeyEventArgs : EventArgs
{
public EnterKeyEventArgs()
{
Cancel = false;
}
public bool Cancel { get; set; }
}
public event EventHandler<EnterKeyEventArgs> EnterKeyEvent;
public HtmlEditor()
{
InitializeComponent();
// define the default values
// browser constants and commands
EMPTY_PARAMETER = System.Reflection.Missing.Value;
// default values used to reset values
_defaultBodyBackColor = Color.White;
_defaultBodyForeColor = Color.Black;
_defaultFont = new HtmlFontProperty(Font);
_navigateWindow = NavigateActionOption.Default;
_scrollBars = DisplayScrollBarOption.Auto;
_autoWordWrap = true;
_toolbarVisible = true;
_statusbarVisible = true;
_wbVisible = true;
_bodyText = DEFAULT_HTML_TEXT;
_bodyHtml = DEFAULT_HTML_TEXT;
_bodyBackColor = _defaultBodyBackColor;
_bodyForeColor = _defaultBodyForeColor;
_bodyFont = _defaultFont;
// load the blank Html page to load the MsHtml object model
BrowserCodeNavigate(BLANK_HTML_PAGE);
// after load ensure document marked as editable
ReadOnly = _readOnly;
ScrollBars = _scrollBars;
SetupComboFontSize();
SynchFont(string.Empty);
}
/// <summary>
/// Method used to navigate to the required page
/// Call made sync using a loading variable
/// </summary>
private void BrowserCodeNavigate(string url)
{
// once navigated to the href page wait until successful
// need to do this to ensure properties are all correctly set
codeNavigate = true;
loading = true;
// perform the navigation
wb.Navigate(url);
// wait for the navigate to complete using the loading variable
// DoEvents needs to be called to enable the DocumentComplete to execute
while (loading)
{
Application.DoEvents();
Thread.Sleep(0);
}
} //BrowserCodeNavigate
[Description("The Inner HTML of the contents"), Category("Textual")]
public string BodyInnerHTML
{
get
{
_bodyText = body.innerText;
_bodyHtml = body.innerHTML;
return _bodyHtml;
}
set
{
try
{
// clear the defined body url
_bodyUrl = string.Empty;
if (value.IsNull()) value = string.Empty;
// set the body property
body.innerHTML = value;
// set the body text and html
_bodyText = body.innerText;
_bodyHtml = body.innerHTML;
// if needed rebase urls
RebaseAnchorUrl();
}
catch (Exception ex)
{
throw new HtmlEditorException("Inner Html for the body cannot be set.", "SetInnerHtml", ex);
}
}
}
/// <summary>
/// Method to remove references to about:blank from the anchors
/// </summary>
private void RebaseAnchorUrl()
{
if (rebaseUrlsNeeded)
{
// review the anchors and remove any references to about:blank
mshtmlElementCollection anchors = body.getElementsByTagName(ANCHOR_TAG);
foreach (mshtmlElement element in anchors)
{
try
{
var anchor = (mshtmlAnchorElement)element;
string href = anchor.href;
// see if href need updating
if (!href.IsNull() && Regex.IsMatch(href, BLANK_HTML_PAGE, RegexOptions.IgnoreCase))
{
anchor.href = href.Replace(BLANK_HTML_PAGE, string.Empty);
}
}
catch (Exception)
{
// ignore any errors
}
}
}
} //RebaseAnchorUrl
/// <summary>
/// Property defining the base text for the body
/// The HTML value can be used at runtime
/// </summary>
[Category("Textual"), Description("Set the initial Body Text")]
[DefaultValue(DEFAULT_HTML_TEXT)]
public string BodyInnerText
{
get
{
_bodyText = body.innerText;
_bodyHtml = body.innerHTML;
return _bodyText;
}
set
{
try
{
// clear the defined body url
_bodyUrl = string.Empty;
if (value.IsNull()) value = string.Empty;
// set the body property
body.innerText = value;
// set the body text and html
_bodyText = body.innerText;
_bodyHtml = body.innerHTML;
}
catch (Exception ex)
{
throw new HtmlEditorException("Inner Text for the body cannot be set.", "SetInnerText", ex);
}
}
} //BodyInnerText
/// <summary>
/// Property returning any Url that was used to load the current document
/// </summary>
[Category("Textual"), Description("Url used to load the Document")]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), Browsable(false)]
public string DocumentUrl
{
get
{
//return document.baseUrl;
return _bodyUrl;
}
}
[Category("Appearance"), DefaultValue("false"), Description("设置或获取一个值，决定按下回车键的时候是插入BR还是P")]
public bool EnterToBR { get; set; }
/// <summary>
/// Property defining the editable status of the text
/// </summary>
[Category("RuntimeDisplay"), Description("Marks the content as ReadOnly")]
[DefaultValue(false)]
public bool ReadOnly
{
get
{
return _readOnly;
}
set
{
_readOnly = value;
// define the document editable property
body.contentEditable = (!_readOnly).ToString();
// define the menu bar state
tsTopToolBar.Enabled = (!_readOnly);
// define whether the IE cntext menu should be shown
wb.IsWebBrowserContextMenuEnabled = _readOnly;
}
} //ReadOnly
/// <summary>
/// Property defining the body tag of the html
/// On set operation the body attributes are redefined
/// </summary>
[Category("Textual"), Description("Complete Document including Body Tag")]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), Browsable(false)]
public string BodyHtml
{
get
{
// set the read only property before return
body.contentEditable = CONTENT_EDITABLE_INHERIT;
string html = _doc.body.outerHTML.Trim();
ReadOnly = _readOnly;
return html;
}
set
{
// clear the defined body url
_bodyUrl = string.Empty;
// define some local working variables
string bodyElement = string.Empty;
string innerHtml = string.Empty;
try
{
// ensure have body open and close tags
if (Regex.IsMatch(value, BODY_PARSE_PRE_EXPRESSION, RegexOptions.IgnoreCase | RegexOptions.Multiline | RegexOptions.Singleline))
{
// define a regular expression for the Html Body parsing and obtain the match expression
var expression = new Regex(BODY_PARSE_EXPRESSION, RegexOptions.IgnoreCase | RegexOptions.Multiline | RegexOptions.Singleline | RegexOptions.Compiled | RegexOptions.ExplicitCapture);
var match = expression.Match(value);
// see if a match was found
if (match.Success)
{
// extract the body tag and the inner html
bodyElement = match.Result(BODY_TAG_PARSE_MATCH);
innerHtml = match.Result(BODY_INNER_PARSE_MATCH);
// remove whitespaces from the body and inner html tags
bodyElement = bodyElement.Trim();
innerHtml = innerHtml.Trim();
}
}
// ensure body was set
if (bodyElement == string.Empty)
{
// assume the Html given is an inner html with no body
bodyElement = BODY_DEFAULT_TAG;
innerHtml = value.Trim();
}
// first navigate to a blank page to reset the html header
BrowserCodeNavigate(BLANK_HTML_PAGE);
// replace the body tag with the one passed in
var oldBodyNode = (mshtmlDomNode)document.body;
var newBodyNode = (mshtmlDomNode)document.createElement(bodyElement);
oldBodyNode.replaceNode(newBodyNode);
// define the new inner html and body objects
body = (mshtmlBody)document.body;
body.innerHTML = innerHtml;
// now all successfully loaded need to review the body attributes
_bodyText = body.innerText;
_bodyHtml = body.innerHTML;
// set and define the appropriate properties
// this will set the appropriate read only property
DefineBodyAttributes();
// if needed rebase urls
RebaseAnchorUrl();
}
catch (Exception ex)
{
throw new HtmlEditorException("Outer Html for the body cannot be set.", "SetBodyHtml", ex);
}
}
} //BodyHtml
/// <summary>
/// Defines all the body attributes once a document has been loaded
/// </summary>
private void DefineBodyAttributes()
{
// define the body colors based on the new body html
_bodyBackColor = GeneralUtil.IsNull(body.bgColor) ? _defaultBodyBackColor : ColorTranslator.FromHtml((string)body.bgColor);
_bodyForeColor = GeneralUtil.IsNull(body.text) ? _defaultBodyForeColor : ColorTranslator.FromHtml((string)body.text);
// define the font object based on current font of new document
// deafult used unless a style on the body modifies the value
mshtmlStyle bodyStyle = body.style;
if (!bodyStyle.IsNull())
{
string fontName = _bodyFont.Name;
HtmlFontSize fontSize = _bodyFont.Size;
bool fontBold = _bodyFont.Bold;
bool fontItalic = _bodyFont.Italic;
// define the font name if defined in the style
if (!bodyStyle.fontFamily.IsNull()) fontName = bodyStyle.fontFamily;
if (!GeneralUtil.IsNull(bodyStyle.fontSize)) fontSize = HtmlFontConversion.StyleSizeToHtml(bodyStyle.fontSize.ToString());
if (!bodyStyle.fontWeight.IsNull()) fontBold = HtmlFontConversion.IsStyleBold(bodyStyle.fontWeight);
if (!bodyStyle.fontStyle.IsNull()) fontItalic = HtmlFontConversion.IsStyleItalic(bodyStyle.fontStyle);
bool fontUnderline = bodyStyle.textDecorationUnderline;
// define the new font object and set the property
_bodyFont = new HtmlFontProperty(fontName, fontSize, fontBold, fontItalic, fontUnderline);
BodyFont = _bodyFont;
}
// define the content based on the current value
ReadOnly = _readOnly;
ScrollBars = _scrollBars;
AutoWordWrap = _autoWordWrap;
} //DefineBodyAttributes
/// <summary>
/// Property defining whether scroll bars should be displayed
/// </summary>
[Category("RuntimeDisplay"), Description("Controls the Display of Scrolls Bars")]
[DefaultValue(DisplayScrollBarOption.Auto)]
public DisplayScrollBarOption ScrollBars
{
get
{
return _scrollBars;
}
set
{
_scrollBars = value;
// define the document scroll bar visibility
body.scroll = _scrollBars.ToString();
}
} //ScrollBars
/// <summary>
/// Property defining whether words will be auto wrapped
/// </summary>
[Category("RuntimeDisplay"), Description("Controls the auto wrapping of content")]
[DefaultValue(true)]
public bool AutoWordWrap
{
get
{
return _autoWordWrap;
}
set
{
_autoWordWrap = value;
// define the document word wrap property
body.noWrap = !_autoWordWrap;
}
} //AutoWordWrap
/// <summary>
/// Property for the base font to use for text editing
/// Reset and Serialize values defined
/// </summary>
[Category("Textual"), Description("Defines the base Font object for the Body")]
[RefreshProperties(RefreshProperties.All)]
public HtmlFontProperty BodyFont
{
get
{
return _bodyFont;
}
set
{
// set the new value using the default if set to null
_bodyFont = HtmlFontProperty.IsNotNull(value) ? value : _defaultFont;
// set the font attributes based on any body styles
mshtmlStyle bodyStyle = body.style;
if (!bodyStyle.IsNull())
{
if (HtmlFontProperty.IsEqual(_bodyFont, _defaultFont))
{
// ensure no values are set in the Body style
if (!bodyStyle.fontFamily.IsNull()) bodyStyle.fontFamily = string.Empty;
if (!GeneralUtil.IsNull(bodyStyle.fontSize)) bodyStyle.fontSize = string.Empty;
if (!bodyStyle.fontWeight.IsNull()) bodyStyle.fontWeight = string.Empty;
}
else
{
// set the body styles based on the defined value
bodyStyle.fontFamily = _bodyFont.Name;
bodyStyle.fontSize = HtmlFontConversion.HtmlFontSizeString(_bodyFont.Size);
bodyStyle.fontWeight = HtmlFontConversion.HtmlFontBoldString(_bodyFont.Bold);
}
}
}
} //BodyFont
public bool ShouldSerializeBodyFont()
{
return (HtmlFontProperty.IsNotEqual(_bodyFont, _defaultFont));
} //ShouldSerializeBodyFont
public void ResetBodyFont()
{
this.BodyFont = _defaultFont;
} //ResetBodyFont
[Category("Appearance"), Description("Controls the visible of ToolBar"), DefaultValue("true")]
public bool ShowToolBar
{
get
{
return _toolbarVisible;
}
set
{
_toolbarVisible = value;
this.tsTopToolBar.Visible = _toolbarVisible;
}
}
[Category("Appearance"), Description("Controls the visible of StatusStrip"), DefaultValue("true")]
public bool ShowStatusBar
{
get
{
return _statusbarVisible;
}
set
{
_statusbarVisible = value;
ssHtml.Visible = _statusbarVisible;
}
}
[Category("Appearance"), Description("Controls the visible of html editor"), DefaultValue("true")]
public bool ShowWb
{
get
{
return _wbVisible;
}
set
{
_wbVisible = value;
wb.Visible = _wbVisible;
}
}
[Category("Appearance"), Description("Controls the enable of shortcut key"), DefaultValue("true")]
public bool WebBrowserShortcutsEnabled
{
get
{
return wb.WebBrowserShortcutsEnabled;
}
set
{
wb.WebBrowserShortcutsEnabled = value;
}
}
#region public method
#region Find and Replace Operations
/// <summary>
/// Dialog to allow the user to perform a find and replace
/// </summary>
public void FindReplacePrompt(bool findOrReplace)
{
// define a default value for the text to find
mshtmlTextRange range = GetTextRange();
string initText = string.Empty;
if (!range.IsNull())
{
string findText = range.text;
if (!findText.IsNull()) initText = findText.Trim();
}
// prompt the user for the new href
using (var dialog = new FindReplaceForm(initText,
FindReplaceReset,
FindFirst,
FindNext,
FindReplaceOne,
FindReplaceAll, findOrReplace))
{
DefineDialogProperties(dialog);
dialog.ShowDialog(ParentForm);
}
} //FindReplacePrompt
/// <summary>
/// Method to reset the find and replace options to initialize a new search
/// </summary>
public void FindReplaceReset()
{
// reset the range being worked with
_findRange = body.createTextRange();
document.selection.empty();
} //FindReplaceReset
/// <summary>
/// Method to find the first occurrence of the given text string
/// Uses false case for the search options
/// </summary>
public bool FindFirst(string findText)
{
return FindFirst(findText, false, false);
} //FindFirst
/// <summary>
/// Method to find the first occurrence of the given text string
/// </summary>
public bool FindFirst(string findText, bool matchWhole, bool matchCase)
{
// reset the text search range prior to making any calls
FindReplaceReset();
// calls the Find Next once search has been initialized
return FindNext(findText, matchWhole, matchCase);
} //FindFirst
/// <summary>
/// Method to find the next occurrence of a given text string
/// Assumes a previous search was made
/// Uses false case for the search options
/// </summary>
public bool FindNext(string findText)
{
return FindNext(findText, false, false);
} //FindNext
/// <summary>
/// Method to find the next occurrence of a given text string
/// Assumes a previous search was made
/// </summary>
public bool FindNext(string findText, bool matchWhole, bool matchCase)
{
return (!FindText(findText, matchWhole, matchCase).IsNull());
} //FindNext
/// <summary>
/// Replace the first occurrence of the given string with the other
/// Uses false case for the search options
/// </summary>
public bool FindReplaceOne(string findText, string replaceText)
{
return FindReplaceOne(findText, replaceText);
} //FindReplaceOne
/// <summary>
/// Method to replace the first occurrence of the given string with the other
/// </summary>
public bool FindReplaceOne(string findText, string replaceText, bool matchWhole, bool matchCase)
{
// find the given text within the find range
mshtmlTextRange replaceRange = FindText(findText, matchWhole, matchCase);
if (!replaceRange.IsNull())
{
// if text found perform a replace
replaceRange.text = replaceText;
replaceRange.select();
// replace made to return success
return true;
}
// no replace was made so return false
return false;
} //FindReplaceOne
/// <summary>
/// Method to replace all the occurrence of the given string with the other
/// Uses false case for the search options
/// </summary>
public int FindReplaceAll(string findText, string replaceText)
{
return FindReplaceAll(findText, replaceText, false, false);
} //FindReplaceAll
/// <summary>
/// Method to replace all the occurrences of the given string with the other
/// </summary>
public int FindReplaceAll(string findText, string replaceText, bool matchWhole, bool matchCase)
{
int found = 0;
mshtmlTextRange replaceRange;
do
{
// find the given text within the find range
replaceRange = FindText(findText, matchWhole, matchCase);
// if found perform a replace
if (!replaceRange.IsNull())
{
replaceRange.text = replaceText;
found ;
}
} while (!replaceRange.IsNull());
// return count of items repalced
return found;
} //FindReplaceAll
/// <summary>
/// Method to perform the actual find of the given text
/// </summary>
private mshtmlTextRange FindText(string findText, bool matchWhole, bool matchCase)
{
// define the search options
int searchOptions = 0;
if (matchWhole) searchOptions = searchOptions 2;
if (matchCase) searchOptions = searchOptions 4;
// perform the search operation
if (!_findRange.text.IsNull() && _findRange.findText(findText, _findRange.text.Length, searchOptions))
{
// select the found text within the document
_findRange.select();
// limit the new find range to be from the newly found text
var foundRange = (mshtmlTextRange)document.selection.createRange();
_findRange = body.createTextRange();
_findRange.setEndPoint("StartToEnd", foundRange);
// text found so return this selection
return foundRange;
}
// reset the find ranges
FindReplaceReset();
// no text found so return null range
return null;
} //FindText
#endregion
/// <summary>
/// 在当前工具栏上新加一个按钮
/// </summary>
/// <param name="buttom">按钮</param>
/// <returns></returns>
public bool AddToobarButtom(ToolStripButton buttom)
{
buttom.DisplayStyle = ToolStripItemDisplayStyle.Image;
return (tsTopToolBar.Items.Add(buttom) > 0);
}
/// <summary>
/// 重置为空白页
/// </summary>
public void Navigate()
{
NavigateToUrl("about:blank");
}
/// <summary>
/// 将指定的统一资源定位符 (URL) 处的文档加载到 System.Windows.Forms.WebBrowser 控件中，替换上一个文档。
/// </summary>
/// <param name="url">指定的统一资源定位符 (URL)</param>
public void NavigateToUrl(string url)
{
wb.Navigate(url);
}
/// <summary>
/// Method to allow the user to load a document by navigation
/// A new window can optionally be specified
/// </summary>
public void NavigateToUrl(string url, bool newWindow)
{
if (newWindow)
{
// open the Url in a new window
wb.Navigate(url, true);
}
else
{
// if no new window required call the normal navigate method
NavigateToUrl(url);
}
} //NavigateToUrl
/// <summary>
/// The currently selected text/controls will be replaced by the given HTML code.
/// If nothing is selected, the HTML code is inserted at the cursor position
/// </summary>
/// <param name="sHtml"></param>
public void PasteIntoSelection(string sHtml)
{
HTMLEditHelper.PasteIntoSelection(sHtml);
}
/// <summary>
/// 统计Html编辑器内容的字数
/// </summary>
/// <returns>字数</returns>
public int WordCount()
{
Debug.Assert(wb.Document != null, "wb.Document != null");
Debug.Assert(wb.Document.Body != null, "wb.Document.Body != null");
#if VS2010
return wb.Document.Body.InnerText.IsNull()
? 0
: Regex.Split(wb.Document.Body.InnerText, @"\s").
Sum(si => Regex.Matches(si, @"[\u0000-\u00ff] ").Count si.Count(c => (int) c > 0x00FF));
#else
if (wb.Document.Body.InnerText.IsNull())
return 0;
var sec = Regex.Split(wb.Document.Body.InnerText, @"\s");
int count = 0;
foreach (var si in sec)
{
int ci = Regex.Matches(si, @"[\u0000-\u00ff] ").Count;
foreach (var c in si)
if (c > 0x00FF) ci ;
count = ci;
}
return count;
#endif
}
/// <summary>
/// Method to allow the user to view the html contents
/// </summary>
public void ShowHTML()
{
using (var dialog = new EditHtmlForm())
{
dialog.HTML = BodyInnerHTML;
dialog.ReadOnly = false;
dialog.SetCaption(HTML_TITLE_EDIT);
DefineDialogProperties(dialog);
if (dialog.ShowDialog(ParentForm) == DialogResult.OK)
{
BodyInnerHTML = dialog.HTML;
}
}
}
/// <summary>
/// Method to allow the user to preview the html page
/// </summary>
public void Preview()
{
bool isPreview = (body.contentEditable == "true");
for (int i = 0; i < tsTopToolBar.Items.Count; i )
{
tsTopToolBar.Items[i].Enabled = !isPreview;
}
if(isPreview)
{
body.contentEditable = "false";
cmsHtml.Enabled = false;
tsbPreview.Enabled = true;
}
else
{
cmsHtml.Enabled = true;
body.contentEditable = "true";
}
}
/// <summary>
/// New document
/// </summary>
public void New()
{
BodyHtml = "";
} //New
/// <summary>
/// Method to allow the user to persist the Html stream to a file
/// </summary>
public void Save()
{
using (var dialog = new SaveFileDialog
{
FileName = "",
Filter = Resources.SaveFilter,
Title = Resources.SaveTitle
})
{
if (dialog.ShowDialog() == DialogResult.OK)
{
var writer = new StreamWriter(dialog.FileName,false,Encoding.UTF8);
writer.Write(BodyHtml);
writer.Close();
}
}
} //New
/// <summary>
/// Method to allow the user to select a file and read the contents into the Html stream
/// </summary>
public void Open()
{
using (var dialog = new OpenFileDialog
{
FileName = "",
Filter = Resources.OpenFilter,
Title = Resources.OpenTitle
})
{
if (dialog.ShowDialog() == DialogResult.OK)
{
var reader = new StreamReader(dialog.FileName, Encoding.Default);
BodyHtml = reader.ReadToEnd();
reader.Close();
}
}
} //Open
/// <summary>
/// Method to print the html text using the document print command
/// Print preview is not supported
/// </summary>
public void Print()
{
ExecuteCommandDocument(HTML_COMMAND_PRINT);
} //Print
/// <summary>
/// Method to copy the currently selected text to the clipboard
/// </summary>
public void Copy()
{
ExecuteCommandDocument(HTML_COMMAND_COPY);
} //Copy
/// <summary>
/// Method to cut the currently selected text to the clipboard
/// </summary>
public void Cut()
{
ExecuteCommandDocument(HTML_COMMAND_CUT);
} //Cut
/// <summary>
/// Method to paste the currently selected text from the clipboard
/// </summary>
public void Paste()
{
ExecuteCommandDocument(HTML_COMMAND_PASTE);
} //Paste
/// <summary>
/// Method to delete the currently selected text from the screen
/// </summary>
public void Delete()
{
ExecuteCommandDocument(HTML_COMMAND_DELETE);
} //Delete
/// <summary>
/// Method to undo former commands
/// </summary>
public void Undo()
{
ExecuteCommandDocument(HTML_COMMAND_UNDO);
FormatSelectionChange();
} //Undo
/// <summary>
/// Method to redo former undo
/// </summary>
public void Redo()
{
ExecuteCommandDocument(HTML_COMMAND_REDO);
FormatSelectionChange();
} //Redo
/// <summary>
/// Method to find string
/// </summary>
public void Find()
{
Focus();
SendKeys.SendWait("^f");
}
/// <summary>
/// Method to remove format
/// </summary>
public void RemoveFormat()
{
ExecuteCommandDocument(HTML_COMMAND_REMOVE_FORMAT);
} //RemoveFormat
/// <summary>
/// Method to define the font justification as CENTER
/// </summary>
public void JustifyCenter()
{
ExecuteCommandRange(HTML_COMMAND_JUSTIFY_CENTER, null);
FormatSelectionChange();
} //JustifyCenter
/// <summary>
/// Method to define the font justification as FULL
/// </summary>
public void JustifyFull()
{
ExecuteCommandRange(HTML_COMMAND_JUSTIFY_FULL, null);
FormatSelectionChange();
} //JustifyFull
/// <summary>
/// Method to define the font justification as LEFT
/// </summary>
public void JustifyLeft()
{
ExecuteCommandRange(HTML_COMMAND_JUSTIFY_LEFT, null);
FormatSelectionChange();
} //JustifyLeft
/// <summary>
/// Method to define the font justification as RIGHT
/// </summary>
public void JustifyRight()
{
ExecuteCommandRange(HTML_COMMAND_JUSTIFY_RIGHT, null);
FormatSelectionChange();
} //JustifyRight
/// <summary>
/// Method using the document to toggle the selection with a underline tag
/// </summary>
public void Underline()
{
ExecuteCommandRange(HTML_COMMAND_UNDERLINE, null);
FormatSelectionChange();
} //Underline
/// <summary>
/// Method using the document to toggle the selection with a italic tag
/// </summary>
public void Italic()
{
ExecuteCommandRange(HTML_COMMAND_ITALIC, null);
FormatSelectionChange();
} //Italic
/// <summary>
/// Method using the document to toggle the selection with a bold tag
/// </summary>
public void Bold()
{
ExecuteCommandRange(HTML_COMMAND_BOLD, null);
FormatSelectionChange();
} //Bold
/// <summary>
/// Method using the exec command to define the back color properties for the selected tag
/// </summary>
public void FormatBackColor(Color color)
{
// Use the COLOR object to set the property BackColor
string colorHtml = color != Color.Empty ? ColorTranslator.ToHtml(color) : null;
ExecuteCommandRange(HTML_COMMAND_BACK_COLOR, colorHtml);
}
/// <summary>
/// Method to display the system color dialog
/// Use use to set the selected text Back Color
/// </summary>
public void FormatBackColorPrompt()
{
// display the Color dialog and use the selected color to modify text
using (var colorDialog = new ColorDialog())
{
colorDialog.AnyColor = true;
colorDialog.SolidColorOnly = true;
colorDialog.AllowFullOpen = true;
colorDialog.Color = GetBackColor();
colorDialog.CustomColors = _customColors;
if (colorDialog.ShowDialog(ParentForm) == DialogResult.OK)
{
_customColors = colorDialog.CustomColors;
FormatBackColor(colorDialog.Color);
}
}
} //FormatBackColorPrompt
/// <summary>
/// Method using the exec command to define the color properties for the selected tag
/// </summary>
public void FormatFontColor(Color color)
{
// Use the COLOR object to set the property ForeColor
string colorHtml = color != Color.Empty ? ColorTranslator.ToHtml(color) : null;
ExecuteCommandRange(HTML_COMMAND_FORE_COLOR, colorHtml);
} //FormatFontColor
/// <summary>
/// Method to display the system color dialog
/// Use use to set the selected text Color
/// </summary>
public void FormatFontColorPrompt()
{
// display the Color dialog and use the selected color to modify text
using (var colorDialog = new ColorDialog())
{
colorDialog.AnyColor = true;
colorDialog.SolidColorOnly = true;
colorDialog.AllowFullOpen = true;
colorDialog.Color = GetFontColor();
colorDialog.CustomColors = _customColors;
if (colorDialog.ShowDialog(ParentForm) == DialogResult.OK)
{
_customColors = colorDialog.CustomColors;
FormatFontColor(colorDialog.Color);
}
}
} //FormatFontColorPrompt
/// <summary>
/// Method using the document to toggle the selection with a StrikeThrough tag
/// </summary>
public void StrikeThrough()
{
ExecuteCommandRange(HTML_COMMAND_STRIKE_THROUGH, null);
FormatSelectionChange();
} //StrikeThrough
/// <summary>
/// Method using the document to create link
/// </summary>
public void CreateLink()
{
ExecuteCommandRange(HTML_COMMAND_CREATE_LINK, null);
} //CreateLink
/// <summary>
/// Method using the document to remove link
/// </summary>
public void UnLink()
{
ExecuteCommandRange(HTML_COMMAND_UNLINK, null);
FormatSelectionChange();
} //UnLink
/// <summary>
/// Method to insert a image and prompt a user for the link
/// Calls the public InsertImage method
/// </summary>
public void InsertImage()
{
ExecuteCommandDocumentPrompt(HTML_COMMAND_INSERT_IMAGE);
} //InsertImage
/// <summary>
///
/// </summary>
public void AutoLayout()
{
if (!BodyInnerHTML.IsNullOrEmpty())
BodyInnerHTML = Regex.Replace(BodyInnerHTML, "(<P.*?>)[\\s]*( ){0,}[\\s]*", "$1 ",
RegexOptions.IgnoreCase | RegexOptions.Multiline);
} //AutoLayout
/// <summary>
/// Create a new focus method that ensure the body gets the focus
/// Should be called when text processing command are called
/// </summary>
public new bool Focus()
{
// have the return value be the focus return from the user control
bool focus = base.Focus();
// try to set the focus to the web browser
try
{
wb.Focus();
if (!body.IsNull()) body.focus();
}
catch (Exception)
{
// ignore errors
}
return focus;
} //Focus
#region Table Processing Operations
/// <summary>
/// Method to create a table class
/// Insert method then works on this table
/// </summary>
public void TableInsert(HtmlTableProperty tableProperties)
{
// call the private insert table method with a null table entry
ProcessTable(null, tableProperties);
} //TableInsert
/// <summary>
/// Method to modify a tables properties
/// Ensure a table is currently selected or insertion point is within a table
/// </summary>
public bool TableModify(HtmlTableProperty tableProperties)
{
// define the Html Table element
mshtmlTable table = GetTableElement();
// if a table has been selected then process
if (!table.IsNull())
{
ProcessTable(table, tableProperties);
return true;
}
return false;
} //TableModify
/// <summary>
/// Method to present to the user the table properties dialog
/// Uses all the default properties for the table based on an insert operation
/// </summary>
public void TableInsertPrompt()
{
// if user has selected a table create a reference
var table = GetFirstControl() as mshtmlTable;
ProcessTablePrompt(table);
} //TableInsertPrompt
/// <summary>
/// Method to present to the user the table properties dialog
/// Ensure a table is currently selected or insertion point is within a table
/// </summary>
public bool TableModifyPrompt()
{
// define the Html Table element
mshtmlTable table = GetTableElement();
// if a table has been selected then process
if (!table.IsNull())
{
ProcessTablePrompt(table);
return true;
}
return false;
} //TableModifyPrompt
/// <summary>
/// Method to insert a new row into the table
/// Based on the current user row and insertion after
/// </summary>
public void TableInsertRow()
{
// see if a table selected or insertion point inside a table
mshtmlTable table;
mshtmlTableRow row;
GetTableElement(out table, out row);
// process according to table being defined
if (!table.IsNull() && !row.IsNull())
{
try
{
// find the existing row the user is on and perform the insertion
int index = row.rowIndex 1;
var insertedRow = (mshtmlTableRow)table.insertRow(index);
// add the new columns to the end of each row
int numberCols = row.cells.length;
for (int idxCol = 0; idxCol < numberCols; idxCol )
{
insertedRow.insertCell();
}
}
catch (Exception ex)
{
throw new HtmlEditorException("Unable to insert a new Row", "TableinsertRow", ex);
}
}
else
{
throw new HtmlEditorException("Row not currently selected within the table", "TableInsertRow");
}
} //TableInsertRow
/// <summary>
/// Method to delete the currently selected row
/// Operation based on the current user row location
/// </summary>
public void TableDeleteRow()
{
// see if a table selected or insertion point inside a table
mshtmlTable table;
mshtmlTableRow row;
GetTableElement(out table, out row);
// process according to table being defined
if (!table.IsNull() && !row.IsNull())
{
try
{
// find the existing row the user is on and perform the deletion
int index = row.rowIndex;
table.deleteRow(index);
}
catch (Exception ex)
{
throw new HtmlEditorException("Unable to delete the selected Row", "TableDeleteRow", ex);
}
}
else
{
throw new HtmlEditorException("Row not currently selected within the table", "TableDeleteRow");
}
} //TableDeleteRow
/// <summary>
/// Method to present to the user the table properties dialog
/// Uses all the default properties for the table based on an insert operation
/// </summary>
private void ProcessTablePrompt(mshtmlTable table)
{
using (var dialog = new TablePropertyForm())
{
// define the base set of table properties
HtmlTableProperty tableProperties = GetTableProperties(table);
// set the dialog properties
dialog.TableProperties = tableProperties;
DefineDialogProperties(dialog);
// based on the user interaction perform the neccessary action
if (dialog.ShowDialog(ParentForm) == DialogResult.OK)
{
tableProperties = dialog.TableProperties;
if (table.IsNull()) TableInsert(tableProperties);
else ProcessTable(table, tableProperties);
}
}
} // ProcessTablePrompt
/// <summary>
/// Method to insert a basic table
/// Will honour the existing table if passed in
/// </summary>
private void ProcessTable(mshtmlTable table, HtmlTableProperty tableProperties)
{
try
{
// obtain a reference to the body node and indicate table present
var bodyNode = (mshtmlDomNode)document.body;
bool tableCreated = false;
// ensure a table node has been defined to work with
if (table.IsNull())
{
// create the table and indicate it was created
table = (mshtmlTable)document.createElement(TABLE_TAG);
tableCreated = true;
}
// define the table border, width, cell padding and spacing
table.border = tableProperties.BorderSize;
if (tableProperties.TableWidth > 0) table.width = (tableProperties.TableWidthMeasurement == MeasurementOption.Pixel) ? string.Format("{0}", tableProperties.TableWidth) : string.Format("{0}%", tableProperties.TableWidth);
else table.width = string.Empty;
table.align = tableProperties.TableAlignment != HorizontalAlignOption.Default ? tableProperties.TableAlignment.ToString().ToLower() : string.Empty;
table.cellPadding = tableProperties.CellPadding.ToString(CultureInfo.InvariantCulture);
table.cellSpacing = tableProperties.CellSpacing.ToString(CultureInfo.InvariantCulture);
// define the given table caption and alignment
string caption = tableProperties.CaptionText;
mshtmlTableCaption tableCaption = table.caption;
if (!caption.IsNullOrEmpty())
{
// ensure table caption correctly defined
if (tableCaption.IsNull()) tableCaption = table.createCaption();
((mshtmlElement)tableCaption).innerText = caption;
if (tableProperties.CaptionAlignment != HorizontalAlignOption.Default) tableCaption.align = tableProperties.CaptionAlignment.ToString().ToLower();
if (tableProperties.CaptionLocation != VerticalAlignOption.Default) tableCaption.vAlign = tableProperties.CaptionLocation.ToString().ToLower();
}
else
{
// if no caption specified remove the existing one
if (!tableCaption.IsNull())
{
// prior to deleting the caption the contents must be cleared
((mshtmlElement)tableCaption).innerText = null;
table.deleteCaption();
}
}
// determine the number of rows one has to insert
int numberRows, numberCols;
if (tableCreated)
{
numberRows = Math.Max((int)tableProperties.TableRows, 1);
}
else
{
numberRows = Math.Max((int)tableProperties.TableRows, 1) - table.rows.length;
}
// layout the table structure in terms of rows and columns
table.cols = tableProperties.TableColumns;
if (tableCreated)
{
// this section is an optimization based on creating a new table
// the section below works but not as efficiently
numberCols = Math.Max((int)tableProperties.TableColumns, 1);
// insert the appropriate number of rows
mshtmlTableRow tableRow;
for (int idxRow = 0; idxRow < numberRows; idxRow )
{
tableRow = (mshtmlTableRow)table.insertRow();
// add the new columns to the end of each row
for (int idxCol = 0; idxCol < numberCols; idxCol )
{
tableRow.insertCell();
}
}
}
else
{
// if the number of rows is increasing insert the decrepency
if (numberRows > 0)
{
// insert the appropriate number of rows
for (int idxRow = 0; idxRow < numberRows; idxRow )
{
table.insertRow();
}
}
else
{
// remove the extra rows from the table
for (int idxRow = numberRows; idxRow < 0; idxRow )
{
table.deleteRow(table.rows.length - 1);
}
}
// have the rows constructed
// now ensure the columns are correctly defined for each row
mshtmlElementCollection rows = table.rows;
foreach (mshtmlTableRow tableRow in rows)
{
numberCols = Math.Max((int)tableProperties.TableColumns, 1) - tableRow.cells.length;
if (numberCols > 0)
{
// add the new column to the end of each row
for (int idxCol = 0; idxCol < numberCols; idxCol )
{
tableRow.insertCell();
}
}
else
{
// reduce the number of cells in the given row
// remove the extra rows from the table
for (int idxCol = numberCols; idxCol < 0; idxCol )
{
tableRow.deleteCell(tableRow.cells.length - 1);
}
}
}
}
// if the table was created then it requires insertion into the DOM
// otherwise property changes are sufficient
if (tableCreated)
{
// table processing all complete so insert into the DOM
var tableNode = (mshtmlDomNode)table;
var tableElement = (mshtmlElement)table;
mshtmlTextRange textRange = GetTextRange();
// final insert dependant on what user has selected
if (!textRange.IsNull())
{
// text range selected so overwrite with a table
try
{
string selectedText = textRange.text;
if (!selectedText.IsNull())
{
// place selected text into first cell
var tableRow = (mshtmlTableRow)table.rows.item(0, null);
((mshtmlElement)tableRow.cells.item(0, null)).innerText = selectedText;
}
textRange.pasteHTML(tableElement.outerHTML);
}
catch (Exception ex)
{
throw new HtmlEditorException("Invalid Text selection for the Insertion of a Table.", "ProcessTable", ex);
}
}
else
{
mshtmlControlRange controlRange = GetAllControls();
if (!controlRange.IsNull())
{
// overwrite any controls the user has selected
try
{
// clear the selection and insert the table
// only valid if multiple selection is enabled
for (int idx = 1; idx < controlRange.length; idx )
{
controlRange.remove(idx);
}
controlRange.item(0).outerHTML = tableElement.outerHTML;
// this should work with initial count set to zero
// controlRange.add((mshtmlControlElement)table);
}
catch (Exception ex)
{
throw new HtmlEditorException("Cannot Delete all previously Controls selected.", "ProcessTable", ex);
}
}
else
{
// insert the table at the end of the HTML
bodyNode.appendChild(tableNode);
}
}
}
else
{
// table has been correctly defined as being the first selected item
// need to remove other selected items
mshtmlControlRange controlRange = GetAllControls();
if (!controlRange.IsNull())
{
// clear the controls selected other than than the first table
// only valid if multiple selection is enabled
for (int idx = 1; idx < controlRange.length; idx )
{
controlRange.remove(idx);
}
}
}
}
catch (Exception ex)
{
// throw an exception indicating table structure change error
throw new HtmlEditorException("Unable to modify Html Table properties.", "ProcessTable", ex);
}
} //ProcessTable
/// <summary>
/// Method to determine if the current selection is a table
/// If found will return the table element
/// </summary>
private void GetTableElement(out mshtmlTable table, out mshtmlTableRow row)
{
row = null;
mshtmlTextRange range = GetTextRange();
try
{
// first see if the table element is selected
table = GetFirstControl() as mshtmlTable;
// if table not selected then parse up the selection tree
if (table.IsNull() && !range.IsNull())
{
var element = range.parentElement();
// parse up the tree until the table element is found
while (!element.IsNull() && table.IsNull())
{
element = element.parentElement;
// extract the Table properties
var htmlTable = element as mshtmlTable;
if (!htmlTable.IsNull())
{
table = htmlTable;
}
// extract the Row properties
var htmlTableRow = element as mshtmlTableRow;
if (!htmlTableRow.IsNull())
{
row = htmlTableRow;
}
}
}
}
catch (Exception)
{
// have unknown error so set return to null
table = null;
row = null;
}
} //GetTableElement
/// <summary>
/// Method to return the currently selected Html Table Element
/// </summary>
private mshtmlTable GetTableElement()
{
// define the table and row elements and obtain there values
mshtmlTable table;
mshtmlTableRow row;
GetTableElement(out table, out row);
// return the defined table element
return table;
}
/// <summary>
/// Given an Html Table Element determines the table properties
/// Returns the properties as an HtmlTableProperty class
/// </summary>
private HtmlTableProperty GetTableProperties(mshtmlTable table)
{
// define a set of base table properties
var tableProperties = new HtmlTableProperty(true);
// if user has selected a table extract those properties
if (!table.IsNull())
{
try
{
// have a table so extract the properties
mshtmlTableCaption caption = table.caption;
// if have a caption persist the values
if (!caption.IsNull())
{
tableProperties.CaptionText = ((mshtmlElement)table.caption).innerText;
if (!caption.align.IsNull()) tableProperties.CaptionAlignment = (HorizontalAlignOption)typeof(HorizontalAlignOption).TryParseEnum(caption.align, HorizontalAlignOption.Default);
if (!caption.vAlign.IsNull()) tableProperties.CaptionLocation = (VerticalAlignOption)typeof(VerticalAlignOption).TryParseEnum(caption.vAlign, VerticalAlignOption.Default);
}
// look at the table properties
if (!GeneralUtil.IsNull(table.border)) tableProperties.BorderSize =GeneralUtil.TryParseByte(table.border.ToString(),tableProperties.BorderSize);
if (!table.align.IsNull()) tableProperties.TableAlignment = (HorizontalAlignOption)typeof(HorizontalAlignOption).TryParseEnum(table.align, HorizontalAlignOption.Default);
// define the table rows and columns
int rows = Math.Min(table.rows.length, Byte.MaxValue);
int cols = Math.Min(table.cols, Byte.MaxValue);
if (cols == 0 && rows > 0)
{
// cols value not set to get the maxiumn number of cells in the rows
foreach (mshtmlTableRow tableRow in table.rows)
{
cols = Math.Max(cols, tableRow.cells.length);
}
}
tableProperties.TableRows = (byte)Math.Min(rows, byte.MaxValue);
tableProperties.TableColumns = (byte)Math.Min(cols, byte.MaxValue);
// define the remaining table properties
if (!GeneralUtil.IsNull(table.cellPadding)) tableProperties.CellPadding = GeneralUtil.TryParseByte(table.cellPadding.ToString(),tableProperties.CellPadding);
if (!GeneralUtil.IsNull(table.cellSpacing)) tableProperties.CellSpacing = GeneralUtil.TryParseByte(table.cellSpacing.ToString(),tableProperties.CellSpacing);
if (!GeneralUtil.IsNull(table.width))
{
string tableWidth = table.width.ToString();
if (tableWidth.TrimEnd(null).EndsWith("%"))
{
tableProperties.TableWidth = tableWidth.Remove(tableWidth.LastIndexOf("%", StringComparison.Ordinal), 1).TryParseUshort(tableProperties.TableWidth);
tableProperties.TableWidthMeasurement = MeasurementOption.Percent;
}
else
{
tableProperties.TableWidth = tableWidth.TryParseUshort(tableProperties.TableWidth);
tableProperties.TableWidthMeasurement = MeasurementOption.Pixel;
}
}
else
{
tableProperties.TableWidth = 0;
tableProperties.TableWidthMeasurement = MeasurementOption.Pixel;
}
}
catch (Exception ex)
{
// throw an exception indicating table structure change be determined
throw new HtmlEditorException("Unable to determine Html Table properties.", "GetTableProperties", ex);
}
}
// return the table properties
return tableProperties;
} //GetTableProperties
/// <summary>
/// Method to return a table defintion based on the user selection
/// If table selected (or insertion point within table) returns these values
/// </summary>
public void GetTableDefinition(out HtmlTableProperty table, out bool tableFound)
{
// see if a table selected or insertion point inside a table
mshtmlTable htmlTable = GetTableElement();
// process according to table being defined
if (htmlTable.IsNull())
{
table = new HtmlTableProperty(true);
tableFound = false;
}
else
{
table = GetTableProperties(htmlTable);
tableFound = true;
}
} //GetTableDefinition
/// <summary>
/// Method to determine if the insertion point or selection is a table
/// </summary>
private bool IsParentTable()
{
// see if a table selected or insertion point inside a table
mshtmlTable htmlTable = GetTableElement();
// process according to table being defined
if (htmlTable.IsNull())
{
return false;
}
return true;
} //IsParentTable
/// <summary>
/// Method to insert a horizontal line in the body
/// If have a control range rather than text range one could overwrite the controls with the line
/// </summary>
public void InsertLine()
{
mshtmlTextRange range = GetTextRange();
if (range != null)
{
ExecuteCommandRange(range, HTML_COMMAND_INSERT_HORIZONTAL_RULE, null);
}
else
{
throw new HtmlEditorException("Invalid Selection for Line insertion.", "InsertLine");
}
} //InsertLine
/// <summary>
/// Method to Tab the current line to the left
/// </summary>
public void Outdent()
{
ExecuteCommandRange(HTML_COMMAND_OUTDENT, null);
} //Outdent
/// <summary>
/// Method to Tab the current line to the right
/// </summary>
public void Indent()
{
ExecuteCommandRange(HTML_COMMAND_INDENT, null);
} //Indent
/// <summary>
/// Method to insert an unordered list
/// </summary>
public void InsertUnorderedList()
{
ExecuteCommandRange(HTML_COMMAND_INSERT_UNORDERED_LIST, null);
FormatSelectionChange();
} //InsertUnorderedList
/// <summary>
/// Method to insert an ordered list
/// </summary>
public void InsertOrderedList()
{
ExecuteCommandRange(HTML_COMMAND_INSERT_ORDERED_LIST, null);
FormatSelectionChange();
} //InsertOrderedList
/// <summary>
/// Method using the document to toggle the selection with a Superscript tag
/// </summary>
public void Superscript()
{
ExecuteCommandRange(HTML_COMMAND_SUPERSCRIPT, null);
FormatSelectionChange();
} //Superscript
/// <summary>
/// Method using the document to toggle the selection with a Subscript tag
/// </summary>
public void Subscript()
{
ExecuteCommandRange(HTML_COMMAND_SUBSCRIPT, null);
FormatSelectionChange();
} //Subscript
/// <summary>
/// Method to select the entire document contents
/// </summary>
public void SelectAll()
{
ExecuteCommandDocument(HTML_COMMAND_SELECT_ALL);
} //SelectAll
#endregion
#endregion
private void tsbNew_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbOpen_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbSave_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbPreview_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbShowHTML_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbCopy_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbCut_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbPaste_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbDelete_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbFind_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
/// <summary>
/// Method to ensure dialog resembles the user form characteristics
/// </summary>
private void DefineDialogProperties(Form dialog)
{
// set ambient control properties
if (!ParentForm.IsNull())
{
dialog.Font = ParentForm.Font;
dialog.ForeColor = ParentForm.ForeColor;
dialog.BackColor = ParentForm.BackColor;
dialog.Cursor = ParentForm.Cursor;
dialog.RightToLeft = ParentForm.RightToLeft;
}
// define location and control style as system
dialog.StartPosition = FormStartPosition.CenterParent;
} //DefineDialogProperties
/// <summary>
/// Method to determine if the tag name is of the correct type
/// A string comparision is made whilst ignoring case
/// </summary>
private bool IsStringEqual(string tagText, string tagType)
{
return (String.Compare(tagText, tagType, StringComparison.OrdinalIgnoreCase) == 0);
} //IsStringEqual
private void tsbRemoveFormat_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbJustifyCenter_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbJustifyLeft_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbJustifyRight_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbUnderline_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbItalic_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbBold_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbStrikeThrough_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbCreateLink_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbUnlink_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbInsertImage_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbInsertHorizontalRule_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbOutdent_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbIndent_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbInsertUnorderedList_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbInsertOrderedList_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbAbout_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbJustifyFull_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsmiInsertTable_Click(object sender, EventArgs e)
{
var menuItem = (ToolStripMenuItem)sender;
var command = (string)menuItem.Tag;
ProcessCommand(command);
}
private void tsbWordCount_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbSuperscript_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbSubscript_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbPrint_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbDate_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbTime_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbSpellCheck_Click(object sender, EventArgs e)
{
Debug.Assert(wb.Document != null, "wb.Document != null");
Debug.Assert(wb.Document.Body != null, "wb.Document.Body != null");
spellCheck.Text = wb.Document.Body.InnerHtml;
spellCheck.SpellCheck();
}
private void tsbAutoLayout_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbUndo_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbRedo_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
private void tsbClearWord_Click(object sender, EventArgs e)
{
var button = (ToolStripButton)sender;
var command = (string)button.Tag;
ProcessCommand(command);
}
/// <summary>
/// Method to perform the process of showing the context menus
/// </summary>
private void DocumentContextMenu(object sender, HtmlElementEventArgs e)
{
// if in readonly mode display the standard context menu
// otherwise display the editing context menu
if (!_readOnly)
{
// should disable inappropriate commands
tsmiTable.Visible = IsParentTable();
// display the text processing context menu
cmsHtml.Show(wb, e.MousePosition);
// cancel the standard menu and event bubbling
e.BubbleEvent = false;
e.ReturnValue = false;
}
} //DocumentContextMenu
/// <summary>
/// Method to perform the process of selection change
/// </summary>
private void DocumentSelectionChange(object sender, EventArgs e)
{
// if not in readonly mode process the selection change
if (!_readOnly)
{
FormatSelectionChange();
}
} //DocumentSelectionChange
/// <summary>
/// Ensures the toolbar is correctly displaying state
/// </summary>
private void FormatSelectionChange()
{
// don't process until bowser is create.
if (wb.IsHandleCreated == false)
return;
SetupKeyListener();
tsbBold.Checked = IsBold();
tsbItalic.Checked = IsItalic();
tsbUnderline.Checked = IsUnderline();
tsbStrikeThrough.Checked = IsStrikeThrough();
tsbInsertOrderedList.Checked = IsOrderedList();
tsbInsertUnorderedList.Checked = IsUnorderedList();
tsbJustifyLeft.Checked = IsJustifyLeft();
tsbJustifyCenter.Checked = IsJustifyCenter();
tsbJustifyRight.Checked = IsJustifyRight();
tsbJustifyFull.Checked = IsJustifyFull();
tsbSubscript.Checked = IsSubscript();
tsbSuperscript.Checked = IsSuperscript();
tsbUndo.Enabled = IsUndo();
tsbRedo.Enabled = IsRedo();
tsbUnlink.Enabled = IsUnlink();
UpdateFontComboBox();
UpdateFontSizeComboBox();
}
/// <summary>
/// Method to perform the process of key being pressed
/// </summary>
private void DocumentKeyPress(object sender, EventArgs e)
{
// define the event object being processes and review the key being pressed
mshtmlEventObject eventObject = document.parentWindow.@event;
if (eventObject.ctrlKey)
{
switch (eventObject.keyCode)
{
case 65:
SelectAll();
eventObject.returnValue = true;
break;
case 72:
FindReplacePrompt(false);
eventObject.returnValue = false;
break;
}
}
if ((eventObject.keyCode != 13)) return;
if (EnterToBR)
{
var range = GetTextRange();
Debug.Assert(range != null, "range != null");
range.pasteHTML(!eventObject.shiftKey ? "<br>" : "<P> </P>");
range.collapse();
range.@select();
}
if (!eventObject.shiftKey)
{
eventObject.returnValue = SetupKeyListener();
}
eventObject.returnValue = true;
} //DocumentKeyPress
private void Selector_TableSizeSelected(object sender, TableSizeEventArgs e)
{
// if user has selected a table create a reference
var table = GetFirstControl() as mshtmlTable;
// define the base set of table properties
HtmlTableProperty tableProperties = GetTableProperties(table);
tableProperties.TableRows =(byte)e.SelectedSize.Height;
tableProperties.TableColumns = (byte)e.SelectedSize.Width;
if (table.IsNull()) TableInsert(tableProperties);
else ProcessTable(table, tableProperties);
}
private void DropDown_Opening(object sender, CancelEventArgs e)
{
var c = tsddbInsertTable.DropDown as ToolStripTableSizeSelector;
if (c != null)
{
c.Selector.SelectedSize = new Size(0, 0);
c.Selector.VisibleRange = new Size(10, 10);
}
}
/// <summary>
/// 初始化工具栏和邮件菜单
/// </summary>
private void InitUi()
{
//初始化插入表格部分
var dropDown = new ToolStripTableSizeSelector();
dropDown.Opening = DropDown_Opening;
dropDown.Selector.TableSizeSelected = Selector_TableSizeSelected;
tsddbInsertTable.DropDown = dropDown;
var tsmiInsertTable = new ToolStripMenuItem
{
Image = Resources.InsertTable,
Name = "tsmiInsertTable",
Size = new Size(152, 22),
Text = Resources.strInsertTable,
Tag = "InsertTable"
};
tsmiInsertTable.Click = tsmiInsertTable_Click;
tsddbInsertTable.DropDownItems.Add(tsmiInsertTable);
string removeButton = ConfigurationManager.AppSettings["removeButtons"];
if (!removeButton.IsNullOrEmpty())
{
var removeButtons = removeButton.Split(',');
foreach (var button in removeButtons)
{
foreach (var item in tsTopToolBar.Items)
{
if (item is ToolStripButton)
{
var tsb = item as ToolStripButton;
if (String.CompareOrdinal(tsb.Tag.ToString(), button) == 0)
{
tsb.Visible = false;
break;
}
}
else if (item is ToolStripDropDownButton)
{
var tsddb = item as ToolStripDropDownButton;
if (String.CompareOrdinal(tsddb.Tag.ToString(), button) == 0)
{
tsddb.Visible = false;
break;
}
}
else if (item is ToolStripFontComboBox)
{
var tsfcb = item as ToolStripFontComboBox;
if (String.CompareOrdinal(tsfcb.Tag.ToString(), button) == 0)
{
tsfcb.Visible = false;
break;
}
}
else if (item is ToolStripComboBox)
{
var tscb = item as ToolStripComboBox;
if (String.CompareOrdinal(tscb.Tag.ToString(), button) == 0)
{
tscb.Visible = false;
break;
}
}
}
}
}
string removeMenu = ConfigurationManager.AppSettings["removeMenus"];
if (!string.IsNullOrEmpty(removeMenu))
{
var removeMenus = removeMenu.Split(',');
foreach (var menu in removeMenus)
{
foreach (var item in cmsHtml.Items)
{
if (item is ToolStripMenuItem)
{
var tsmi = item as ToolStripMenuItem;
if (String.CompareOrdinal(tsmi.Tag.ToString(), menu) == 0)
{
tsmi.Visible = false;
break;
}
}
}
}
}
}
private void HtmlEditor_Load(object sender, EventArgs e)
{
tsTopToolBar.Dock = DockStyle.Top;
InitUi();
HTMLEditHelper.DOMDocument = _doc;
Focus();
}
#if VS2010
public static string ClearWord(string sourceText, bool bIgnoreFont = true, bool bRemoveStyles = true, bool cleanWordKeepsStructure = true)
{
return ClearWordNoDefult(sourceText, bIgnoreFont, bRemoveStyles, cleanWordKeepsStructure);
}
#endif
private static String DeCompressWMZOREMZFile(String wmzoremzFile)
{
MemoryStream decompressStream = new MemoryStream(File.ReadAllBytes(wmzoremzFile));
GZipStream gzipStream = new GZipStream(decompressStream, CompressionMode.Decompress);
MemoryStream outStream = new MemoryStream();
int readCount;
byte[] data = new byte[2048];
do
{
readCount = gzipStream.Read(data, 0, data.Length);
outStream.Write(data, 0, readCount);
} while (readCount == 2048);
String imgFile = Path.GetDirectoryName(wmzoremzFile) "\\" Path.GetFileNameWithoutExtension(wmzoremzFile)
(Path.GetExtension(wmzoremzFile) == ".wmz"
? ".wmf"
: ".emf");
File.WriteAllBytes(imgFile, outStream.GetBuffer());
return imgFile;
}
public static string ReplaceWordImageFile(string sourceText)
{
var reg = new Regex(@"(?is)<v:imagedata[^>]*?src=(['""\s]?)((?:(?!topics)[^'""\s])*)\1[^>]*?>", RegexOptions.IgnoreCase);
foreach (Match m in reg.Matches(sourceText))
{
switch (Path.GetExtension(m.Groups[2].Value))
{
case ".wmz":
case ".emz":
{
string temp = m.Groups[0].Value.Replace(m.Groups[2].Value,
DeCompressWMZOREMZFile(m.Groups[2].Value.StartsWith("file:///")
? m.Groups[2].Value.Substring(8)
: m.Groups[2].Value));
sourceText = sourceText.Replace(m.Groups[0].Value, temp);
}
break;
}
}
sourceText = Regex.Replace(sourceText, @"v:imagedata", "img");
return sourceText;
}
public static string ClearWordNoDefult(string sourceText, bool bIgnoreFont, bool bRemoveStyles, bool cleanWordKeepsStructure)
{
sourceText = ReplaceWordImageFile(sourceText);
sourceText = Regex.Replace(sourceText, @"<o:p>\s*<\/o:p>", "");
sourceText = Regex.Replace(sourceText, @"<o:p>.*?<\/o:p>", " ");
// Remove mso-xxx styles.
sourceText = Regex.Replace(sourceText, @"\s*mso-[^:] :[^;""'>] ;?", "", RegexOptions.IgnoreCase);
// Remove margin styles.
sourceText = Regex.Replace(sourceText, @"\s*MARGIN: 0cm 0cm 0pt\s*;", "", RegexOptions.IgnoreCase);
sourceText = Regex.Replace(sourceText, @"\s*MARGIN: 0cm 0cm 0pt\s*""", "\"", RegexOptions.IgnoreCase);
sourceText = Regex.Replace(sourceText, @"\s*TEXT-INDENT: 0cm\s*;", "", RegexOptions.IgnoreCase);
sourceText = Regex.Replace(sourceText, @"\s*TEXT-INDENT: 0cm\s*""", "\"", RegexOptions.IgnoreCase);
sourceText = Regex.Replace(sourceText, @"\s*TEXT-ALIGN: [^\s;] ;?""", "\"", RegexOptions.IgnoreCase);
sourceText = Regex.Replace(sourceText, @"\s*PAGE-BREAK-BEFORE: [^\s;] ;?""", "\"", RegexOptions.IgnoreCase);
sourceText = Regex.Replace(sourceText, @"\s*FONT-VARIANT: [^\s;] ;?""", "\"", RegexOptions.IgnoreCase);
sourceText = Regex.Replace(sourceText, @"\s*tab-stops:[^;""]*;?", "", RegexOptions.IgnoreCase);
sourceText = Regex.Replace(sourceText, @"\s*tab-stops:[^""]*", "", RegexOptions.IgnoreCase);
// Remove FONT face attributes.
if (bIgnoreFont)
{
sourceText = Regex.Replace(sourceText, @"\s*face=""[^""]*""", "", RegexOptions.IgnoreCase);
sourceText = Regex.Replace(sourceText, @"\s*face=[^ >]*", "", RegexOptions.IgnoreCase);
sourceText = Regex.Replace(sourceText, @"\s*FONT-FAMILY:[^;""]*;?", "", RegexOptions.IgnoreCase);
}
// Remove Class attributes
sourceText = Regex.Replace(sourceText, @"<(\w[^>]*) class=([^ |>]*)([^>]*)", "<$1$3", RegexOptions.IgnoreCase);
// Remove styles.
if (bRemoveStyles)
sourceText = Regex.Replace(sourceText, @"<(\w[^>]*) style=""([^\""]*)""([^>]*)", "<$1$3", RegexOptions.IgnoreCase);
// Remove empty styles.
sourceText = Regex.Replace(sourceText, @"\s*style=""\s*""", "", RegexOptions.IgnoreCase);
sourceText = Regex.Replace(sourceText, @"<SPAN\s*[^>]*>\s* \s*<\/SPAN>", " ", RegexOptions.IgnoreCase);
sourceText = Regex.Replace(sourceText, @"<SPAN\s*[^>]*><\/SPAN>", "", RegexOptions.IgnoreCase);
// Remove Lang attributes
sourceText = Regex.Replace(sourceText, @"<(\w[^>]*) lang=([^ |>]*)([^>]*)", "<$1$3", RegexOptions.IgnoreCase);
sourceText = Regex.Replace(sourceText, @"<SPAN\s*>(.*?)<\/SPAN>", "$1", RegexOptions.IgnoreCase);
sourceText = Regex.Replace(sourceText, @"<FONT\s*>(.*?)<\/FONT>", "$1", RegexOptions.IgnoreCase);
// Remove XML elements and declarations
sourceText = Regex.Replace(sourceText, @"<\\?\?xml[^>]*>", "", RegexOptions.IgnoreCase);
// Remove Tags with XML namespace declarations: <o:p><\/o:p>
sourceText = Regex.Replace(sourceText, @"<\/?\w :[^>]*>", "", RegexOptions.IgnoreCase);
// Remove comments [SF BUG-1481861].
sourceText = Regex.Replace(sourceText, @"<\!--.*?-->/", "");
sourceText = Regex.Replace(sourceText, @"<(U|I|STRIKE)> <\/\1>", " ");
sourceText = Regex.Replace(sourceText, @"<H\d>\s*<\/H\d>", "", RegexOptions.IgnoreCase);
// Remove "display:none" tags.
sourceText = Regex.Replace(sourceText, @"<(\w )[^>]*\sstyle=""[^""]*DISPLAY\s?:\s?none(.*?)<\/\1>", "", RegexOptions.IgnoreCase);
// Remove language tags
sourceText = Regex.Replace(sourceText, @"<(\w[^>]*) language=([^ |>]*)([^>]*)", "<$1$3", RegexOptions.IgnoreCase);
// Remove onmouseover and onmouseout events (from MS Word comments effect)
sourceText = Regex.Replace(sourceText, @"<(\w[^>]*) onmouseover=""([^\""]*)""([^>]*)", "<$1$3", RegexOptions.IgnoreCase);
sourceText = Regex.Replace(sourceText, @"<(\w[^>]*) onmouseout=""([^\""]*)""([^>]*)", "<$1$3", RegexOptions.IgnoreCase);
if (cleanWordKeepsStructure)
{
// The original <Hn> tag send from Word is something like this: <Hn style="margin-top:0px;margin-bottom:0px">
sourceText = Regex.Replace(sourceText, @"<H(\d)([^>]*)>", "<h$1>", RegexOptions.IgnoreCase);
// Word likes to insert extra <font> tags, when using MSIE. (Wierd).
sourceText = Regex.Replace(sourceText, @"<(H\d)><FONT[^>]*>(.*?)<\/FONT><\/\1>", @"<$1>$2<\/$1>", RegexOptions.IgnoreCase);
sourceText = Regex.Replace(sourceText, @"<(H\d)><EM>(.*?)<\/EM><\/\1>", @"<$1>$2<\/$1>", RegexOptions.IgnoreCase);
}
else
{
sourceText = Regex.Replace(sourceText, @"<H1([^>]*)>", @"<div$1><b><font size=""6"">", RegexOptions.IgnoreCase);
sourceText = Regex.Replace(sourceText, @"<H2([^>]*)>", @"<div$1><b><font size=""5"">", RegexOptions.IgnoreCase);
sourceText = Regex.Replace(sourceText, @"<H3([^>]*)>", @"<div$1><b><font size=""4"">", RegexOptions.IgnoreCase);
sourceText = Regex.Replace(sourceText, @"<H4([^>]*)>", @"<div$1><b><font size=""3"">", RegexOptions.IgnoreCase);
sourceText = Regex.Replace(sourceText, @"<H5([^>]*)>", @"<div$1><b><font size=""2"">", RegexOptions.IgnoreCase);
sourceText = Regex.Replace(sourceText, @"<H6([^>]*)>", @"<div$1><b><font size=""1"">", RegexOptions.IgnoreCase);
sourceText = Regex.Replace(sourceText, @"<\/H\d>", @"<\/font><\/b><\/div>", RegexOptions.IgnoreCase);
// Transform <P> to <DIV>
//var re = new Regex(@"(<P)([^>]*>.*?)(<\/P>)", RegexOptions.IgnoreCase); // Different because of a IE 5.0 error
sourceText = Regex.Replace(sourceText, @"(<P)([^>]*>.*?)(<\/P>)", @"<div$2<\/div>", RegexOptions.IgnoreCase);
// Remove empty tags (three times, just to be sure).
// This also removes any empty anchor
sourceText = Regex.Replace(sourceText, @"<([^\s>] )(\s[^>]*)?>\s*<\/\1>", "");
sourceText = Regex.Replace(sourceText, @"<([^\s>] )(\s[^>]*)?>\s*<\/\1>", "");
sourceText = Regex.Replace(sourceText, @"<([^\s>] )(\s[^>]*)?>\s*<\/\1>", "");
}
return sourceText;
}
private void spellCheck_DeletedWord(object sender, NetSpell.SpellChecker.SpellingEventArgs e)
{
var htmlDocument = wb.Document;
if (htmlDocument != null) if (htmlDocument.Body != null) htmlDocument.Body.InnerHtml = e.Text;
}
private void spellCheck_ReplacedWord(object sender, NetSpell.SpellChecker.ReplaceWordEventArgs e)
{
Debug.Assert(wb.Document != null, "wb.Document != null");
Debug.Assert(wb.Document.Body != null, "wb.Document.Body != null");
wb.Document.Body.InnerHtml = e.Text;
}
#region Fonts and Color Handling
//To handle the fact that setting SelectedIndex property calls SelectedIndexChanged event
//We set this value to true whenever SelectedIndex is set.
private bool _internalCall;
private void SetupComboFontSize()
{
tscbFontSize.Items.Add("1 (8 pt)");
tscbFontSize.Items.Add("2 (10 pt)");
tscbFontSize.Items.Add("3 (12 pt)");
tscbFontSize.Items.Add("4 (14 pt)");
tscbFontSize.Items.Add("5 (18 pt)");
tscbFontSize.Items.Add("6 (24 pt)");
tscbFontSize.Items.Add("7 (36 pt)");
tscbFontSize.Click = tscbFontSize_Click;
tscbFontSize.SelectedIndexChanged = tscbFontSize_SelectedIndexChanged;
}
private void tscbFontSize_Click(object sender, EventArgs e)
{
_internalCall = false;
}
/// <summary>
/// Set editor's current selection to the value of the font size combo box.
/// Ignore if the timer is currently updating the font size to synchronize
/// the font size combo box with the editor's current selection.
/// </summary>
/// <param name="sender">the sender</param>
/// <param name="e">EventArgs</param>
private void tscbFontSize_SelectedIndexChanged(object sender, EventArgs e)
{
try
{
//Fontsize changed 1 to 7
if ((tscbFontSize.SelectedIndex > -1) && (!_internalCall))
{
if (_updatingFontSize) return;
int obj = tscbFontSize.SelectedIndex 1;
switch (obj)
{
case 1:
FontSize = FontSize.One;
break;
case 2:
FontSize = FontSize.Two;
break;
case 3:
FontSize = FontSize.Three;
break;
case 4:
FontSize = FontSize.Four;
break;
case 5:
FontSize = FontSize.Five;
break;
case 6:
FontSize = FontSize.Six;
break;
case 7:
FontSize = FontSize.Seven;
break;
default:
FontSize = FontSize.Seven;
break;
}
Focus();
}
_internalCall = false;
}
catch
{
}
}
/// <summary>
/// Called when the font combo box has changed.
/// Ignores the event when the timer is updating the font combo Box
/// to synchronize the editor selection with the font combo box.
/// </summary>
/// <param name="sender">the sender</param>
/// <param name="e">EventArgs</param>
private void tsfcbFontName_SelectedIndexChanged(object sender, EventArgs e)
{
if (_updatingFontName) return;
FontFamily ff;
try
{
ff = new FontFamily(tsfcbFontName.Text);
}
catch (Exception)
{
_updatingFontName = true;
tsfcbFontName.Text = FontName.GetName(0);
_updatingFontName = false;
return;
}
FontName = ff;
Focus();
}
#endregion
#region Private variables and methods
private void SynchFont(string sTagName)
{
//Times Roman New
object obj = QueryCommandRange(HTML_COMMAND_FONTNAME);
if (obj.IsNull())
return;
string fontname = obj.ToString();
obj = QueryCommandRange(HTML_COMMAND_FONTSIZE);
if (obj.IsNull())
return;
//Could indicate a headingxxx, P, or BODY
_internalCall = true;
if (obj.ToString().Length > 0)
tscbFontSize.SelectedIndex = Convert.ToInt32(obj) - 1; //x (x - 1)
else
AdjustForHeading(sTagName);
tsfcbFontName.Text = fontname;
}
private void AdjustForHeading(string sTag)
{
if (sTag.IsNullOrEmpty())
return;
int index;
if (sTag == "H1")
index = 5; //24pt
else if (sTag == "H2")
index = 4; //18pt
else if (sTag == "H3")
index = 3; //14pt
else if (sTag == "H4")
index = 2; //12pt
else if (sTag == "H5")
index = 1; //10pt
else if (sTag == "H6")
index = 0; //8pt
else
return; //do nothing
_internalCall = true;
tscbFontSize.SelectedIndex = index;
}
/// <summary>
/// Set up a key listener on the body once.
/// The key listener checks for specific key strokes and takes
/// special action in certain cases.
/// </summary>
/// <returns></returns>
private bool SetupKeyListener()
{
// handle enter code cancellation
bool cancel = false;
if (!EnterKeyEvent.IsNull())
{
var args = new EnterKeyEventArgs();
EnterKeyEvent(this, args);
cancel = args.Cancel;
}
return cancel;
}
/// <summary>
/// Determine whether the current block is left justified.
/// </summary>
/// <returns>true if left justified, otherwise false</returns>
public bool IsJustifyLeft()
{
return ExecuteCommandQuery(HTML_COMMAND_JUSTIFY_LEFT);
}
/// <summary>
/// Determine whether the current block is right justified.
/// </summary>
/// <returns>true if right justified, otherwise false</returns>
public bool IsJustifyRight()
{
return ExecuteCommandQuery(HTML_COMMAND_JUSTIFY_RIGHT);
}
/// <summary>
/// Determine whether the current block is center justified.
/// </summary>
/// <returns>true if center justified, false otherwise</returns>
public bool IsJustifyCenter()
{
return ExecuteCommandQuery(HTML_COMMAND_JUSTIFY_CENTER);
}
/// <summary>
/// Determine whether the current block is full justified.
/// </summary>
/// <returns>true if full justified, false otherwise</returns>
public bool IsJustifyFull()
{
return ExecuteCommandQuery(HTML_COMMAND_JUSTIFY_FULL);
}
/// <summary>
/// Determine whether the current selection is in Bold mode.
/// </summary>
/// <returns>whether or not the current selection is Bold</returns>
public bool IsBold()
{
return ExecuteCommandQuery(HTML_COMMAND_BOLD);
}
/// <summary>
/// Determine whether the current selection is in Italic mode.
/// </summary>
/// <returns>whether or not the current selection is Italicized</returns>
public bool IsItalic()
{
return ExecuteCommandQuery(HTML_COMMAND_ITALIC);
}
/// <summary>
/// Determine whether the current selection is in Underline mode.
/// </summary>
/// <returns>whether or not the current selection is Underlined</returns>
public bool IsUnderline()
{
return ExecuteCommandQuery(HTML_COMMAND_UNDERLINE);
}
/// <summary>
/// Determine whether the current selection is in StrikeThrough mode.
/// </summary>
/// <returns>whether or not the current selection is StrikeThrough</returns>
public bool IsStrikeThrough()
{
return ExecuteCommandQuery(HTML_COMMAND_STRIKE_THROUGH);
}
/// <summary>
/// Determine whether the current selection is in Subscript mode.
/// </summary>
/// <returns>whether or not the current selection is Subscript</returns>
public bool IsSubscript()
{
return ExecuteCommandQuery(HTML_COMMAND_SUBSCRIPT);
}
/// <summary>
/// Determine whether the current selection is in Superscript mode.
/// </summary>
/// <returns>whether or not the current selection is Superscript</returns>
public bool IsSuperscript()
{
return ExecuteCommandQuery(HTML_COMMAND_SUPERSCRIPT);
}
/// <summary>
/// Determine whether the current paragraph is an ordered list.
/// </summary>
/// <returns>true if current paragraph is ordered, false otherwise</returns>
public bool IsOrderedList()
{
return ExecuteCommandQuery(HTML_COMMAND_INSERT_ORDERED_LIST);
}
/// <summary>
/// Determine whether the current paragraph is an unordered list.
/// </summary>
/// <returns>true if current paragraph is ordered, false otherwise</returns>
public bool IsUnorderedList()
{
return ExecuteCommandQuery(HTML_COMMAND_INSERT_UNORDERED_LIST);
}
/// <summary>
/// Determine whether the current block can undo.
/// </summary>
/// <returns>true if current block can undo, false otherwise</returns>
public bool IsUndo()
{
return _doc.queryCommandEnabled(HTML_COMMAND_UNDO);
}
/// <summary>
/// Determine whether the current block can redo.
/// </summary>
/// <returns>true if current block can redo, false otherwise</returns>
public bool IsRedo()
{
return _doc.queryCommandEnabled(HTML_COMMAND_REDO);
}
/// <summary>
/// Determine whether the current block can unlink.
/// </summary>
/// <returns>true if current block can unlink, false otherwise</returns>
public bool IsUnlink()
{
return ExecuteCommandQuery(HTML_COMMAND_UNLINK, true);
}
/// <summary>
/// Update the font size combo box.
/// Sets a flag to indicate that the combo box is updating, and should
/// not update the editor's selection.
/// </summary>
private void UpdateFontSizeComboBox()
{
if (!tscbFontSize.Focused)
{
int foo;
switch (FontSize)
{
case FontSize.One:
foo = 0;
break;
case FontSize.Two:
foo = 1;
break;
case FontSize.Three:
foo = 2;
break;
case FontSize.Four:
foo = 3;
break;
case FontSize.Five:
foo = 4;
break;
case FontSize.Six:
foo = 5;
break;
case FontSize.Seven:
foo = 6;
break;
case FontSize.NA:
foo = -1;
break;
default:
foo = 2;
break;
}
//string fontsize = Convert.ToString(foo);
if (foo != tscbFontSize.SelectedIndex)
{
_updatingFontSize = true;
tscbFontSize.SelectedIndex = foo;
_updatingFontSize = false;
}
}
}
/// <summary>
/// Update the font combo box.
/// Sets a flag to indicate that the combo box is updating, and should
/// not update the editor's selection.
/// </summary>
private void UpdateFontComboBox()
{
if (!tsfcbFontName.Focused)
{
FontFamily fam = FontName;
if (!fam.IsNull())
{
string fontname = fam.Name;
if (fontname != tsfcbFontName.Text)
{
_updatingFontName = true;
tsfcbFontName.Text = fontname;
_updatingFontName = false;
}
}
}
}
/// <summary>
/// Get/Set the current font size.
/// </summary>
[Browsable(false)]
public FontSize FontSize
{
get
{
if (QueryCommandRange(HTML_COMMAND_FONTSIZE).IsNull())
return FontSize.NA;
switch (QueryCommandRange(HTML_COMMAND_FONTSIZE).ToString())
{
case "1":
return FontSize.One;
case "2":
return FontSize.Two;
case "3":
return FontSize.Three;
case "4":
return FontSize.Four;
case "5":
return FontSize.Five;
case "6":
return FontSize.Six;
case "7":
return FontSize.Seven;
default:
return FontSize.NA;
}
}
set
{
int sz;
switch (value)
{
case FontSize.One:
sz = 1;
break;
case FontSize.Two:
sz = 2;
break;
case FontSize.Three:
sz = 3;
break;
case FontSize.Four:
sz = 4;
break;
case FontSize.Five:
sz = 5;
break;
case FontSize.Six:
sz = 6;
break;
case FontSize.Seven:
sz = 7;
break;
default:
sz = 7;
break;
}
if (!wb.Document.IsNull())
wb.Document.ExecCommand(HTML_COMMAND_FONTSIZE, false, sz.ToString(CultureInfo.InvariantCulture));
}
}
/// <summary>
/// Get/Set the current font name.
/// </summary>
[Browsable(false)]
public FontFamily FontName
{
get
{
var name = QueryCommandRange(HTML_COMMAND_FONTNAME) as string;
if (name.IsNull()) return null;
return new FontFamily(name);
}
set
{
if (!value.IsNull() && !wb.Document.IsNull())
{
wb.Document.ExecCommand(HTML_COMMAND_FONTNAME, false, value.Name);
}
}
}
#endregion
private void wb_Navigating(object sender, WebBrowserNavigatingEventArgs e)
{
string url = e.Url.ToString();
if (!codeNavigate)
{
// call the appropriate event processing
var navigateArgs = new HtmlNavigationEventArgs(url);
OnHtmlNavigation(navigateArgs);
// process the event based on the navigation option
if (navigateArgs.Cancel)
{
// cancel the navigation
e.Cancel = true;
}
else if (_navigateWindow == NavigateActionOption.NewWindow)
{
// cancel the current navigation and load url into a new window
e.Cancel = true;
NavigateToUrl(url, true);
}
else
{
// continue with current navigation
e.Cancel = false;
}
}
else
{
// TODO Should ensure the following are no executed for the editor navigation
// Scripts
// Java
// ActiveX Controls
// Behaviors
// Dialogs
// continue with current navigation
e.Cancel = false;
}
}
/// <summary>
/// Processing for the HtmlNavigation event
/// </summary>
private void OnHtmlNavigation(HtmlNavigationEventArgs args)
{
if (!HtmlNavigation.IsNull())
{
HtmlNavigation(this, args);
}
} //OnHtmlNavigation
#region MsHtml Command Processing
/// <summary>
/// Performs a query of the command state
/// </summary>
private bool ExecuteCommandQuery(string command, bool isEnabled=false)
{
// obtain the selected range object and query command
mshtmlTextRange range = GetTextRange();
return ExecuteCommandQuery(range, command, isEnabled);
} //ExecuteCommandQuery
/// <summary>
/// Executes the queryCommandState on the selected range (given the range)
/// </summary>
private bool ExecuteCommandQuery(mshtmlTextRange range, string command, bool isEnabled = false)
{
// set the initial state as false
bool retValue = false;
try
{
if (!range.IsNull())
{
// ensure command is a valid command and then enabled for the selection
if (range.queryCommandSupported(command))
{
if (isEnabled)
{
retValue = range.queryCommandEnabled(command);
}
else
{
if (range.queryCommandEnabled(command))
{
// mark the selection with the appropriate tag
retValue = range.queryCommandState(command);
}
}
}
}
}
catch (Exception ex)
{
// Unknown error so inform user
throw new HtmlEditorException("Unknown MSHTML Error.", command, ex);
}
// return the value
return retValue;
} // ExecuteCommandQuery
/// <summary>
/// Executes the execCommand on the selected range
/// </summary>
private void ExecuteCommandRange(string command, object data)
{
// obtain the selected range object and execute command
mshtmlTextRange range = GetTextRange();
ExecuteCommandRange(range, command, data);
} // ExecuteCommandRange
/// <summary>
/// Executes the execCommand on the selected range (given the range)
/// </summary>
private void ExecuteCommandRange(mshtmlTextRange range, string command, object data)
{
try
{
if (!range.IsNull())
{
// ensure command is a valid command and then enabled for the selection
if (range.queryCommandSupported(command))
{
if (range.queryCommandEnabled(command))
{
// mark the selection with the appropriate tag
range.execCommand(command, false, data);
}
}
}
}
catch (Exception ex)
{
// Unknown error so inform user
throw new HtmlEditorException("Unknown MSHTML Error.", command, ex);
}
} // ExecuteCommandRange
/// <summary>
/// Executes the execCommand on the document with a system prompt
/// </summary>
private void ExecuteCommandDocumentPrompt(string command)
{
ExecuteCommandDocument(command, true);
} // ExecuteCommandDocumentPrompt
/// <summary>
/// Executes the execCommand on the document with a system prompt
/// </summary>
private void ExecuteCommandDocument(string command, bool prompt = false)
{
try
{
// ensure command is a valid command and then enabled for the selection
if (document.queryCommandSupported(command))
{
// if (document.queryCommandEnabled(command)) {}
// Test fails with a COM exception if command is Print
// execute the given command
document.execCommand(command, prompt, null);
}
}
catch (Exception ex)
{
// Unknown error so inform user
throw new HtmlEditorException("Unknown MSHTML Error.", command, ex);
}
} // ExecuteCommandDocumentPrompt
/// <summary>
/// Determines the value of the command
/// </summary>
private object QueryCommandRange(string command)
{
// obtain the selected range object and execute command
mshtmlTextRange range = GetTextRange();
return !range.IsNull()? QueryCommandRange(range, command) : null;
} // QueryCommandRange
/// <summary>
/// Determines the value of the command
/// </summary>
private object QueryCommandRange(mshtmlTextRange range, string command)
{
object retValue = null;
if (!range.IsNull())
{
try
{
// ensure command is a valid command and then enabled for the selection
if (range.queryCommandSupported(command))
{
if (range.queryCommandEnabled(command))
{
retValue = range.queryCommandValue(command);
}
}
}
catch (Exception)
{
// have unknown error so set return to null
retValue = null;
}
}
// return the obtained value
return retValue;
} //QueryCommandRange
/// <summary>
/// Gets the selected Html Range Element
/// </summary>
private mshtmlTextRange GetTextRange()
{
// define the selected range object
mshtmlTextRange range = null;
try
{
// calculate the text range based on user selection
mshtmlSelection selection = document.selection;
if (IsStringEqual(selection.type, SELECT_TYPE_TEXT) || IsStringEqual(selection.type, SELECT_TYPE_NONE))
{
range = (mshtmlTextRange)selection.createRange();
}
}
catch (Exception)
{
// have unknown error so set return to null
range = null;
}
return range;
} // GetTextRange
/// <summary>
/// Determines the color of the selected text range
/// Returns default value if not text selected
/// </summary>
private Color GetFontColor()
{
object fontColor = QueryCommandRange(HTML_COMMAND_FORE_COLOR);
return (fontColor is Int32) ? ColorTranslator.FromWin32((int)fontColor) : _bodyForeColor;
} //GetFontColor
/// <summary>
/// Determines the color of the selected text range
/// Returns default value if not text selected
/// </summary>
private Color GetBackColor()
{
object fontColor = QueryCommandRange(HTML_COMMAND_BACK_COLOR);
return (fontColor is Int32) ? ColorTranslator.FromWin32((int)fontColor) : _bodyBackColor;
} //GetFontColor
/// <summary>
/// Gets the first selected Html Control as an Element
/// </summary>
private mshtmlElement GetFirstControl()
{
// define the selected range object
mshtmlElement control = null;
try
{
// calculate the first control based on the user selection
mshtmlSelection selection = document.selection;
if (IsStringEqual(selection.type, SELECT_TYPE_CONTROL))
{
var range = (mshtmlControlRange)selection.createRange();
if (range.length > 0) control = range.item(0);
}
}
catch (Exception)
{
// have unknown error so set return to null
control = null;
}
return control;
} // GetFirstControl
/// <summary>
/// Gets all the selected Html Controls as a Control Range
/// </summary>
/// <returns></returns>
private mshtmlControlRange GetAllControls()
{
// define the selected range object
mshtmlControlRange range = null;
try
{
// calculate the first control based on the user selection
mshtmlSelection selection = document.selection;
if (IsStringEqual(selection.type, SELECT_TYPE_CONTROL))
{
range = (mshtmlControlRange)selection.createRange();
}
}
catch (Exception)
{
// have unknow error so set return to null
range = null;
}
return range;
} //GetAllControls
#endregion
/// <summary>
/// Method to process the toolbar command and handle error exception
/// </summary>
private void ProcessCommand(string command)
{
try
{
// Evaluate the Button property to determine which button was clicked.
switch (command)
{
case INTERNAL_COMMAND_NEW:
// New document
New();
break;
case INTERNAL_COMMAND_OPEN:
// Open a selected file
Open();
break;
case INTERNAL_COMMAND_PRINT:
// Print the current document
Print();
break;
case INTERNAL_COMMAND_SAVE:
// Saves the current document
Save();
break;
case INTERNAL_COMMAND_PREVIEW:
// Preview the html page
Preview();
break;
case INTERNAL_COMMAND_SHOWHTML:
// View the html contents
ShowHTML();
break;
case INTERNAL_COMMAND_COPY:
// Browser COPY command
Copy();
break;
case INTERNAL_COMMAND_CUT:
// Browser CUT command
Cut();
break;
case INTERNAL_COMMAND_PASTE:
// Browser PASTE command
Paste();
break;
case INTERNAL_COMMAND_DELETE:
// Browser DELETE command
Delete();
break;
case INTERNAL_COMMAND_UNDO:
// Undo the previous editing
Undo();
break;
case INTERNAL_COMMAND_REDO:
// Redo the previous undo
Redo();
break;
case INTERNAL_COMMAND_FIND:
//Find the string u input
Find();
break;
case INTERNAL_COMMAND_REMOVE_FORMAT:
// Browser REMOVEFORMAT command
RemoveFormat();
break;
case INTERNAL_COMMAND_JUSTIFYCENTER:
// Justify Center
JustifyCenter();
break;
case INTERNAL_COMMAND_JUSTIFYFULL:
// Justify Full
JustifyFull();
break;
case INTERNAL_COMMAND_JUSTIFYLEFT:
// Justify Left
JustifyLeft();
break;
case INTERNAL_COMMAND_JUSTIFYRIGHT:
// Justify Right
JustifyRight();
break;
case INTERNAL_COMMAND_UNDERLINE:
// Selection UNDERLINE command
Underline();
break;
case INTERNAL_COMMAND_ITALIC:
// Selection ITALIC command
Italic();
break;
case INTERNAL_COMMAND_BOLD:
// Selection BOLD command
Bold();
break;
case INTERNAL_COMMAND_FORECOLOR:
// FORECOLOR style creation
FormatFontColor(tscpForeColor.Color);
break;
case INTERNAL_COMMAND_BACKCOLOR:
// BACKCOLOR style creation
FormatBackColor(tscpBackColor.Color);
break;
case INTERNAL_COMMAND_STRIKETHROUGH:
// Selection STRIKETHROUGH command
StrikeThrough();
break;
case INTERNAL_COMMAND_CREATELINK:
// Selection CREATELINK command
CreateLink();
break;
case INTERNAL_COMMAND_UNLINK:
// Selection UNLINK command
UnLink();
break;
case INTERNAL_COMMAND_INSERTTABLE:
// Display a dialog to enable the user to insert a table
TableInsertPrompt();
break;
case INTERNAL_COMMAND_TABLEPROPERTIES:
// Display a dialog to enable the user to modify a table
TableModifyPrompt();
break;
case INTERNAL_COMMAND_TABLEINSERTROW:
// Display a dialog to enable the user to modify a table
TableInsertRow();
break;
case INTERNAL_COMMAND_TABLEDELETEROW:
// Display a dialog to enable the user to modify a table
TableDeleteRow();
break;
case INTERNAL_COMMAND_INSERTIMAGE:
// Display a dialog to enable the user to insert a image
InsertImage();
break;
case INTERNAL_COMMAND_INSERTHORIZONTALRULE:
// Horizontal Line
InsertLine();
break;
case INTERNAL_COMMAND_OUTDENT:
// Tab Left
Outdent();
break;
case INTERNAL_COMMAND_INDENT:
// Tab Right
Indent();
break;
case INTERNAL_COMMAND_INSERTUNORDEREDLIST:
// Unordered List
InsertUnorderedList();
break;
case INTERNAL_COMMAND_INSERTORDEREDLIST:
// Ordered List
InsertOrderedList();
break;
case INTERNAL_COMMAND_SUPERSCRIPT:
// Selection SUPERSCRIPT command
Superscript();
break;
case INTERNAL_COMMAND_SUBSCRIPT:
// Selection SUBSCRIPT command
Subscript();
break;
case INTERNAL_COMMAND_SELECTALL:
// Selects all document content
SelectAll();
break;
case INTERNAL_COMMAND_WORDCOUNT:
// Word count
int wordCount = WordCount();
tsslWordCount.Text = string.Format("字数：{0}", wordCount);
break;
case INTERNAL_COMMAND_INSERTDATE:
// Insert date
HTMLEditHelper.PasteIntoSelection(DateTime.Now.ToLongDateString());
break;
case INTERNAL_COMMAND_INSERTTIME:
// Insert time
HTMLEditHelper.PasteIntoSelection(DateTime.Now.ToLongTimeString());
break;
case INTERNAL_COMMAND_CLEARWORD:
// Clear word
if (BodyInnerHTML != null)
{
Debug.Assert(wb.Document != null, "wb.Document != null");
Debug.Assert(wb.Document.Body != null, "wb.Document.Body != null");
#if VS2010
wb.Document.Body.InnerHtml = ClearWord(BodyInnerHTML);
#else
wb.Document.Body.InnerHtml = ClearWordNoDefult(BodyInnerHTML, true, true, true);
#endif
}
break;
case INTERNAL_COMMAND_AUTOLAYOUT:
// Auto Layout
AutoLayout();
break;
case INTERNAL_COMMAND_ABOUT:
if (MessageBox.Show(Resources.AboutInfo, Resources.AboutText, MessageBoxButtons.YesNo, MessageBoxIcon.Asterisk) == DialogResult.Yes)
{
Process.Start("http://tewuapple.github.com/WinHtmlEditor/");
}
break;
default:
throw new HtmlEditorException("Unknown Operation Being Performed.", command);
}
}
catch (HtmlEditorException ex)
{
// process the html exception
OnHtmlException(new HtmlExceptionEventArgs(ex.Operation, ex));
}
catch (Exception ex)
{
// process the exception
OnHtmlException(new HtmlExceptionEventArgs(null, ex));
}
// ensure web browser has the focus after command execution
Focus();
} //ProcessCommand
/// <summary>
/// Method to raise an event if a delegeate is assigned for handling exceptions
/// </summary>
private void OnHtmlException(HtmlExceptionEventArgs args)
{
if (HtmlException.IsNull())
{
// obtain the message and operation
// concatenate the message with any inner message
string operation = args.Operation;
Exception ex = args.ExceptionObject;
string message = ex.Message;
if (!ex.InnerException.IsNull())
{
message = string.Format("{0}\n{1}", message, ex.InnerException.Message);
}
// define the title for the internal message box
string title;
if (operation.IsNullOrEmpty())
{
title = "Unknown Error";
}
else
{
title = operation " Error";
}
// display the error message box
MessageBox.Show(this, message, title, MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
HtmlException(this, args);
}
}
private void wb_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
// get access to the HTMLDocument
var htmlDocument = wb.Document;
if (!htmlDocument.IsNull())
{
document = (mshtmlDocument)htmlDocument.DomDocument;
_doc = (mshtmlIHTMLDocument2)htmlDocument.DomDocument;
// at this point the document and body has been loaded
// so define the event handler for the context menu
htmlDocument.ContextMenuShowing = DocumentContextMenu;
htmlDocument.AttachEventHandler("onselectionchange", DocumentSelectionChange);
htmlDocument.AttachEventHandler("onkeydown", DocumentKeyPress);
}
body = (mshtmlBody)document.body;
// COM Interop Start
// once browsing has completed there is the need to setup some options
// need to ensure URLs are not modified when html is pasted
int hResult;
// try to obtain the command target for the web browser document
try
{
// cast the document to a command target
var target = (IOleCommandTarget)document;
// set the appropriate no url fixups on paste
hResult = target.Exec(ref CommandGroup.CGID_MSHTML, (int)CommandId.IDM_NOFIXUPURLSONPASTE, (int)CommandOption.OLECMDEXECOPT_DONTPROMPTUSER, ref EMPTY_PARAMETER, ref EMPTY_PARAMETER);
}
// catch any exception and map back to the HRESULT
catch (Exception ex)
{
hResult = Marshal.GetHRForException(ex);
}
// test the HRESULT for a valid operation
rebaseUrlsNeeded = hResult != HRESULT.S_OK;
// COM Interop End
// signalled complete
codeNavigate = false;
loading = false;
// after navigation define the document Url
string url = e.Url.ToString();
_bodyUrl = IsStringEqual(url, BLANK_HTML_PAGE) ? string.Empty : url;
}
/// <summary>
/// Called when a key is pressed on the font size combo box.
/// The font size in the boxy box is set to the key press value.
/// </summary>
/// <param name="sender">the sender</param>
/// <param name="e">KeyPressEventArgs</param>
private void tscbFontSize_KeyPress(object sender, KeyPressEventArgs e)
{
if (Char.IsNumber(e.KeyChar))
{
e.Handled = true;
if (e.KeyChar <= '7' && e.KeyChar > '0')
tscbFontSize.SelectedIndex = GeneralUtil.ParseInt(e.KeyChar) - 1;
}
else if (!Char.IsControl(e.KeyChar))
{
e.Handled = true;
}
}
/// <summary>
/// General Context Meun processing method
/// Calls the ProcessCommand with the selected command Tag Text
/// </summary>
private void ContextEditorClick(object sender, EventArgs e)
{
var menuItem = (ToolStripMenuItem)sender;
var command = (string)menuItem.Tag;
ProcessCommand(command);
} //contextEditorClick
private void tscpBackColor_SelectedColorChanged(object sender, EventArgs e)
{
var tscp = (ToolStripColorPicker)sender;
var command = (string)tscp.Tag;
ProcessCommand(command);
}
private void tscpForeColor_SelectedColorChanged(object sender, EventArgs e)
{
var tscp = (ToolStripColorPicker)sender;
var command = (string)tscp.Tag;
ProcessCommand(command);
}
}
}
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