/// <summary>
/// Overridden to set the design mode to the last desired design mode and multiple selection flag
/// to the last desired multiple selection flag
/// </summary>
/// <param name="args"></param>
protected override internal void OnReadyStateComplete(EventArgs args)
{
base.OnReadyStateComplete(args);
_persistStream = (Interop.IPersistStreamInit)MSHTMLDocument;
Selection.SynchronizeSelection();
//Set the mutiple selection mode to the last desired multiple selection mode
if (_multipleSelectionDesired)
{
MultipleSelectionEnabled = _multipleSelectionDesired;
}
//Set the absolute positioning mode to the last desired absolute position mode
if (_absolutePositioningDesired)
{
AbsolutePositioningEnabled = _absolutePositioningDesired;
}
//Set the absolute positioning mode to the last desired absolute position mode
if (_bordersDesired)
{
BordersVisible = _bordersDesired;
}
}
//REVIEW: Add a load method for stream and url
/// <summary>
/// Loads HTML content from a string into this control identified by the specified URL.
/// If MSHTML has not yet been created, the loading is postponed until MSHTML has been created.
/// </summary>
/// <param name="content"></param>
/// <param name="url"></param>
public void LoadHtml(string content, string url, string style)
{
if (content == null)
{
content = "";
}
if (!_isCreated)
{
_desiredContent = content;
_desiredUrl = url;
_loadDesired = true;
return;
}
if (_fullDocumentMode == false)
{
content = CreateHtmlContent(content, style);
}
OnBeforeLoad();
Interop.IStream stream = null;
//First we create a COM stream
IntPtr hglobal = Marshal.StringToHGlobalUni(content);
Interop.CreateStreamOnHGlobal(hglobal, true, out stream);
// Initialize a new document if there is nothing to load
if (stream == null)
{
Interop.IPersistStreamInit psi = (Interop.IPersistStreamInit)_site.MSHTMLDocument;
Debug.Assert(psi != null, "Expected IPersistStreamInit");
psi.InitNew();
psi = null;
}
else
{
Interop.IHTMLDocument2 document = _site.MSHTMLDocument;
//If there is no specified URL load the document from the stream
if (url == null)
{
Interop.IPersistStreamInit psi = (Interop.IPersistStreamInit)document;
Debug.Assert(psi != null, "Expected IPersistStreamInit");
psi.Load(stream);
psi = null;
}
else
{
//Otherwise we create a moniker and load the stream to that moniker
}
}
_url = url;
OnAfterLoad();
}
protected internal override void OnReadyStateComplete(EventArgs args)
{
base.OnReadyStateComplete(args);
this._persistStream = (Interop.IPersistStreamInit) base.MSHTMLDocument;
this._selection.SynchronizeSelection();
if (this._multipleSelectionDesired)
{
this.MultipleSelectionEnabled = this._multipleSelectionDesired;
}
if (this._absolutePositioningDesired)
{
this.AbsolutePositioningEnabled = this._absolutePositioningDesired;
}
if (this._gridVisibleDesired)
{
this.GridVisible = this._gridVisibleDesired;
}
if (this._glyphsDesired)
{
this.GlyphsVisible = this._glyphsDesired;
}
if (this._bordersDesired)
{
this.BordersVisible = this._bordersDesired;
}
}
/// <summary>
/// Saves the HTML contained in control to a string and return it.
/// </summary>
/// <returns>string - The HTML in the control</returns>
public string SaveHtml()
{
if (!IsCreated)
{
throw new Exception("HtmlControl.SaveHtml : No HTML to save!");
}
string content = String.Empty;
try
{
OnBeforeSave();
Interop.IHTMLDocument2 document = _site.MSHTMLDocument;
if (_fullDocumentMode)
{
// First save the document to a stream
Interop.IPersistStreamInit psi = (Interop.IPersistStreamInit)document;
Debug.Assert(psi != null, "Expected IPersistStreamInit");
Interop.IStream stream = null;
Interop.CreateStreamOnHGlobal(Interop.NullIntPtr, true, out stream);
psi.Save(stream, 1);
// Now copy the stream to the string
STATSTG stat = new STATSTG();
stream.Stat(stat, 1);
int length = (int)stat.cbSize;
byte[] bytes = new byte[length];
IntPtr hglobal;
Interop.GetHGlobalFromStream(stream, out hglobal);
Debug.Assert(hglobal != Interop.NullIntPtr, "Failed in GetHGlobalFromStream");
// First copy the stream to a byte array
IntPtr pointer = Interop.GlobalLock(hglobal);
if (pointer != Interop.NullIntPtr)
{
Marshal.Copy(pointer, bytes, 0, length);
Interop.GlobalUnlock(hglobal);
// Then create the string from the byte array (use a StreamReader to eat the preamble in the UTF8 encoding case)
StreamReader streamReader = null;
try
{
streamReader = new StreamReader(new MemoryStream(bytes), Encoding.Default);
content = streamReader.ReadToEnd();
}
finally
{
if (streamReader != null)
{
streamReader.Close();
}
}
}
}
else
{
// Save only the contents of the <body> tag
Interop.IHTMLElement bodyElement = document.GetBody();
Debug.Assert(bodyElement != null, "Could not get BODY element from document");
if (bodyElement != null)
{
content = SavePartialHtml(Element.GetWrapperFor(bodyElement, this));
}
}
}
catch (Exception e)
{
Debug.Fail("HtmlControl.SaveHtml" + e.ToString());
content = String.Empty;
}
finally
{
OnAfterSave();
}
if (content == null)
{
content = String.Empty;
}
HtmlFormatter formatter = new HtmlFormatter();
StringWriter writer = new StringWriter();
formatter.Format(content, writer, new HtmlFormatterOptions(' ', 4, 80, true));
return(writer.ToString());
}
