/// <summary> /// Invokes the specified generator /// </summary> /// <param name="fileNode">The node on which to invoke the generator.</param> protected internal virtual void InvokeGenerator(FileNode fileNode) { if (fileNode == null) { throw new ArgumentNullException("node"); } SingleFileGeneratorNodeProperties nodeproperties = fileNode.NodeProperties as SingleFileGeneratorNodeProperties; if (nodeproperties == null) { throw new InvalidOperationException(); } string customToolProgID = nodeproperties.CustomTool; if (String.IsNullOrEmpty(customToolProgID)) { return; } string customToolNamespace = nodeproperties.CustomToolNamespace; try { if (!this.runningGenerator) { //Get the buffer contents for the current node string moniker = fileNode.GetMkDocument(); this.runningGenerator = true; //Get the generator IVsSingleFileGenerator generator; int generateDesignTimeSource; int generateSharedDesignTimeSource; int generateTempPE; SingleFileGeneratorFactory factory = new SingleFileGeneratorFactory(this.projectMgr.ProjectGuid, this.projectMgr.Site); ErrorHandler.ThrowOnFailure(factory.CreateGeneratorInstance(customToolProgID, out generateDesignTimeSource, out generateSharedDesignTimeSource, out generateTempPE, out generator)); //Check to see if the generator supports siting IObjectWithSite objWithSite = generator as IObjectWithSite; if (objWithSite != null) { objWithSite.SetSite(fileNode.OleServiceProvider); } //Determine the namespace if (String.IsNullOrEmpty(customToolNamespace)) { customToolNamespace = this.ComputeNamespace(moniker); } //Run the generator IntPtr[] output = new IntPtr[1]; output[0] = IntPtr.Zero; uint outPutSize; string extension; ErrorHandler.ThrowOnFailure(generator.DefaultExtension(out extension)); //Find if any dependent node exists string dependentNodeName = Path.GetFileNameWithoutExtension(fileNode.FileName) + extension; HierarchyNode dependentNode = fileNode.FirstChild; while (dependentNode != null) { if (String.Compare(dependentNode.ItemNode.GetMetadata(ProjectFileConstants.DependentUpon), fileNode.FileName, StringComparison.OrdinalIgnoreCase) == 0) { dependentNodeName = ((FileNode)dependentNode).FileName; break; } dependentNode = dependentNode.NextSibling; } //If you found a dependent node. if (dependentNode != null) { //Then check out the node and dependent node from SCC if (!this.CanEditFile(dependentNode.GetMkDocument())) { throw Marshal.GetExceptionForHR(VSConstants.OLE_E_PROMPTSAVECANCELLED); } } else //It is a new node to be added to the project { // Check out the project file if necessary. if (!this.projectMgr.QueryEditProjectFile(false)) { throw Marshal.GetExceptionForHR(VSConstants.OLE_E_PROMPTSAVECANCELLED); } } IVsTextStream stream; string inputFileContents = this.GetBufferContents(moniker, out stream); ErrorHandler.ThrowOnFailure(generator.Generate(moniker, inputFileContents, customToolNamespace, output, out outPutSize, this)); byte[] data = new byte[outPutSize]; if (output[0] != IntPtr.Zero) { Marshal.Copy(output[0], data, 0, (int)outPutSize); Marshal.FreeCoTaskMem(output[0]); } //Todo - Create a file and add it to the Project string fileToAdd = this.UpdateGeneratedCodeFile(fileNode, data, (int)outPutSize, dependentNodeName); } } finally { this.runningGenerator = false; } }