/// <summary>
/// Attempts to create a new HTMLData. This can return null if the DataObject
/// couldn't be created based upon the IDataObject.
/// </summary>
/// <param name="iDataObject">The IDataObject from which to create the HTML Data Object</param>
/// <returns>The HTMLData, null if it couldn't be created.</returns>
public static HTMLData Create(IDataObject iDataObject)
{
string[] loser = iDataObject.GetFormats();
if (OleDataObjectHelper.GetDataPresentSafe(iDataObject, DataFormats.Html))
{
try
{
HTMLData data = new HTMLData(iDataObject, null);
return(string.IsNullOrEmpty(data.HTML) ? null : data);
}
catch (FormatException)
{
// EML files with HTML inside of them report that they are HTML
// However, when we try to read the format, we have problems reading it
// So we will skip loading html that we cannot load
return(null);
}
}
else if (HtmlDocumentClassFormatPresent(iDataObject))
{
return(new HTMLData(iDataObject, (IHTMLDocument2)iDataObject.GetData(typeof(HTMLDocumentClass))));
}
else
{
return(null);
}
}
private string GrowToAnchorParent(HTMLData htmlData)
{
if (htmlData.OnlyImageElement == null)
return null;
string html;
// Load up the html document from the clipboard to a document to examine the html about to be inserted
MshtmlMarkupServices markupServices = new MshtmlMarkupServices(htmlData.HTMLDocument as IMarkupServicesRaw);
MarkupRange range = markupServices.CreateMarkupRange(htmlData.OnlyImageElement, true);
// look to see if this is a case where the inserted html is <a>|<img>|</a>
MarkupContext markupContextStart = range.Start.Left(true);
MarkupContext markupContextEnd = range.End.Right(true);
// if that is the cause, change the html about to be inserted to |<a><img></a>|
if (markupContextStart.Context == _MARKUP_CONTEXT_TYPE.CONTEXT_TYPE_ExitScope &&
markupContextEnd.Context == _MARKUP_CONTEXT_TYPE.CONTEXT_TYPE_ExitScope &&
markupContextStart.Element.tagName == "A" &&
markupContextEnd.Element.tagName == "A")
{
html = markupContextStart.Element.outerHTML;
}
else
{
html = htmlData.HTMLSelection;
}
return html;
}
/// <summary>
/// Attempts to create a new HTMLData. This can return null if the DataObject
/// couldn't be created based upon the IDataObject.
/// </summary>
/// <param name="iDataObject">The IDataObject from which to create the HTML Data Object</param>
/// <returns>The HTMLData, null if it couldn't be created.</returns>
public static HTMLData Create(IDataObject iDataObject)
{
string[] loser = iDataObject.GetFormats();
if (OleDataObjectHelper.GetDataPresentSafe(iDataObject, DataFormats.Html))
{
try
{
HTMLData data = new HTMLData(iDataObject, null);
return string.IsNullOrEmpty(data.HTML) ? null : data;
}
catch (FormatException)
{
// EML files with HTML inside of them report that they are HTML
// However, when we try to read the format, we have problems reading it
// So we will skip loading html that we cannot load
return null;
}
}
else if (HtmlDocumentClassFormatPresent(iDataObject))
{
return new HTMLData(iDataObject, (IHTMLDocument2)iDataObject.GetData(typeof(HTMLDocumentClass)));
}
else
return null;
}
private static bool IsOfficeHtml(HTMLData data)
{
string generator = data.HTMLMetaData.Generator;
if (String.IsNullOrEmpty(generator))
return false;
return
(generator.StartsWith("Microsoft Word") || generator.StartsWith("Microsoft Excel") ||
generator.StartsWith("Microsoft PowerPoint"));
}