private bool IsAnalyzableSource(uint itemId, out string canonicalName)
{
// Find out if this item is a physical file.
Guid typeGuid;
canonicalName = null;
int hr = Hierarchy.GetGuidProperty(itemId, (int)__VSHPROPID.VSHPROPID_TypeGuid, out typeGuid);
if (Microsoft.VisualStudio.ErrorHandler.Failed(hr) ||
VSConstants.GUID_ItemType_PhysicalFile != typeGuid)
{
// It is not a file, we can exit now.
return(false);
}
// This item is a file; find if current language can recognize it.
hr = Hierarchy.GetCanonicalName(itemId, out canonicalName);
if (ErrorHandler.Failed(hr))
{
return(false);
}
return((System.IO.Path.GetExtension(canonicalName).Equals(".xaml", StringComparison.OrdinalIgnoreCase)) ||
_package.IsRecognizedFile(canonicalName));
}
public int OnBeforeDocumentWindowShow(uint docCookie, int fFirstShow, IVsWindowFrame pFrame)
{
// Check if this document is in the list of the documents.
if (_documents.ContainsKey(docCookie))
{
return(VSConstants.S_OK);
}
// Get the information about this document from the RDT.
IVsRunningDocumentTable rdt = GetPackageService(typeof(SVsRunningDocumentTable)) as IVsRunningDocumentTable;
if (null != rdt)
{
// Note that here we don't want to throw in case of error.
uint flags;
uint readLocks;
uint writeLoks;
string documentMoniker;
IVsHierarchy hierarchy;
uint itemId;
IntPtr unkDocData;
int hr = rdt.GetDocumentInfo(docCookie, out flags, out readLocks, out writeLoks,
out documentMoniker, out hierarchy, out itemId, out unkDocData);
try {
if (Microsoft.VisualStudio.ErrorHandler.Failed(hr) || (IntPtr.Zero == unkDocData))
{
return(VSConstants.S_OK);
}
// Check if the herarchy is one of the hierarchies this service is monitoring.
if (!_hierarchies.ContainsKey(hierarchy))
{
// This hierarchy is not monitored, we can exit now.
return(VSConstants.S_OK);
}
// Check the file to see if a listener is required.
if (_package.IsRecognizedFile(documentMoniker))
{
return(VSConstants.S_OK);
}
// Create the module id for this document.
ModuleId docId = new ModuleId(hierarchy, itemId);
// Try to get the text buffer.
IVsTextLines buffer = Marshal.GetObjectForIUnknown(unkDocData) as IVsTextLines;
// Create the listener.
TextLineEventListener listener = new TextLineEventListener(buffer, documentMoniker, docId);
// Set the event handler for the change event. Note that there is no difference
// between the AddFile and FileChanged operation, so we can use the same handler.
listener.OnFileChanged += new EventHandler <HierarchyEventArgs>(OnNewFile);
// Add the listener to the dictionary, so we will not create it anymore.
_documents.Add(docCookie, listener);
} finally {
if (IntPtr.Zero != unkDocData)
{
Marshal.Release(unkDocData);
}
}
}
// Always return success.
return(VSConstants.S_OK);
}