protected virtual object CreateDocumentView(string documentMoniker, string physicalView, IVsHierarchy hierarchy, uint itemid, IVsTextLines textLines, bool createdDocData, out string editorCaption, out Guid cmdUI)
{
//Init out params
editorCaption = string.Empty;
cmdUI = Guid.Empty;
if (string.IsNullOrEmpty(physicalView))
{
// create code window as default physical view
return(CreateCodeView(documentMoniker, textLines, createdDocData, ref editorCaption, ref cmdUI));
}
// We couldn't create the view
// Return special error code so VS can try another editor factory.
throw Marshal.GetExceptionForHR(VSConstants.VS_E_UNSUPPORTEDFORMAT);
}
protected virtual IVsTextLines GetTextBuffer(System.IntPtr docDataExisting, string filename)
{
IVsTextLines textLines;
if (docDataExisting == IntPtr.Zero)
{
// Create a new IVsTextLines buffer.
Type textLinesType = typeof(IVsTextLines);
Guid riid = textLinesType.GUID;
Guid clsid = typeof(VsTextBufferClass).GUID;
textLines = _package.CreateInstance(ref clsid, ref riid, textLinesType) as IVsTextLines;
// set the buffer's site
((IObjectWithSite)textLines).SetSite(_serviceProvider.GetService(typeof(IOleServiceProvider)));
}
else
{
// Use the existing text buffer
Object dataObject = Marshal.GetObjectForIUnknown(docDataExisting);
textLines = dataObject as IVsTextLines;
if (textLines == null)
{
// Try get the text buffer from textbuffer provider
IVsTextBufferProvider textBufferProvider = dataObject as IVsTextBufferProvider;
if (textBufferProvider != null)
{
textBufferProvider.GetTextBuffer(out textLines);
}
}
if (textLines == null)
{
// Unknown docData type then, so we have to force VS to close the other editor.
throw Marshal.GetExceptionForHR(VSConstants.VS_E_INCOMPATIBLEDOCDATA);
}
}
return(textLines);
}