public void Start(string szURL, IInternetProtocolSink sink, IInternetBindInfo pOIBindInfo, uint grfPI, uint dwReserved)
{
//Debug.WriteLine("xxHelpAsyncPluggableProtocolHandler.Start(" + szURL + ")");
String mimeType = "text/html";
// type = "text" / "image" / "audio" / "video" / "application" / extension-token
//type/subtype eg. "text/html", "image/png", "image/gif", "video/mpeg", "text/css", and "audio/basic"
if (MsxhelpProtocol.Catalog == null || !MsxhelpProtocol.Catalog.IsOpen)
{
_stream = null;
}
else
{
try
{
if (_customRenderer == null)
{
_customRenderer = CustomRenderer.Create();
}
String topicID;
Boolean isTopicUrl = _customRenderer.IsTopicUrl(szURL, out topicID);
// -----------------------------------------------------------------------
// debug - Host wants to see raw HTML from .mshc
if (MsxhelpProtocol.RawCodeHandler != null)
{
try
{
if (isTopicUrl && String.IsNullOrEmpty(MsxhelpProtocol.UserTopicText)) // Topic with no text overload
{
_stream = _customRenderer.UrlToStream(szURL, false); // false = No Render.
if (this._stream != null)
{
_stream.Position = 0;
StreamReader reader = new StreamReader(_stream);
String text = reader.ReadToEnd();
MsxhelpProtocol.RawCodeHandler(text); //send text to main form
this._stream.Close();
this._stream = null;
}
}
}
catch
{
//suck it up.. the next bit is the important part
}
}
// -----------------------------------------------------------------------
// render - Web browser wants rendered code
// if (MsxhelpProtocol.RenderUsingVS) // Requires VS 11 DLL (Microsoft.VisualStudio.Help.DLL)
// {
// if (_vsRenderer == null) //will crash if VS not installed
// _vsRenderer = new TopicRenderer();
// _stream = (Stream)_vsRenderer.ProcessLink(szURL, (ICatalog)MsxhelpProtocol.Catalog, null/*_renderParameters*/);
// }
// else // basic render code supplied with this SDK -- Good for Win 8 where VS 11 not installed
{
_stream = _customRenderer.UrlToStream(szURL);
_stream.Position = 0;
}
}
catch
{
_stream = null;
}
}
if (_stream != null)
{
//Set Mime type
uint BINDSTATUS_MIMETYPEAVAILABLE = 13;
if (mimeType != "")
{
sink.ReportProgress(BINDSTATUS_MIMETYPEAVAILABLE, mimeType);
}
sink.ReportData(BSCF.LASTDATANOTIFICATION | BSCF.DATAFULLYAVAILABLE, (uint)_stream.Length, (uint)_stream.Length);
sink.ReportResult((uint)HRESULT.S_OK, 200, null);
}
else
{
sink.ReportResult((uint)HRESULT.INET_E_OBJECT_NOT_FOUND, 404, "Cannot find the goods");
}
}
