ComReferenceNode.cs :  » Development » StyleCop » Microsoft » VisualStudio » Package » C# / CSharp Open Source

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C# / CSharp Open Source » Development » StyleCop 
StyleCop » Microsoft » VisualStudio » Package » ComReferenceNode.cs
/***************************************************************************

Copyright (c) Microsoft Corporation. All rights reserved.
This code is licensed under the Visual Studio SDK license terms.
THIS CODE IS PROVIDED *AS IS* WITHOUT WARRANTY OF
ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING ANY
IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR
PURPOSE, MERCHANTABILITY, OR NON-INFRINGEMENT.

***************************************************************************/

using System;
using Microsoft.Win32;
using System.Runtime.InteropServices;
using System.Collections;
using System.IO;
using System.Windows.Forms;
using System.Diagnostics;
using System.Globalization;
using System.Reflection;
using System.Text;
using System.Threading;
using Microsoft.VisualStudio.Shell.Interop;
using Microsoft.VisualStudio.OLE.Interop;
using System.Diagnostics.CodeAnalysis;

namespace Microsoft.VisualStudio.Package{
  /// <summary>
  /// This type of node is used for references to COM components.
  /// </summary>
  [CLSCompliant(false)]
  [ComVisible(true)]
  public class ComReferenceNode : ReferenceNode
  {
    #region fields
    private string typeName;
    private Guid typeGuid;
    private string projectRelativeFilePath;
    private string installedFilePath;
    private string minorVersionNumber;
    private string majorVersionNumber;
    private string lcid;
    #endregion

    #region properties
    public override string Caption
    {
      get { return this.typeName; }
    }

    public override string Url
    {
      get
      {
        return this.projectRelativeFilePath;
      }
    }

    /// <summary>
    /// Returns the Guid of the COM object.
    /// </summary>
    public Guid TypeGuid
    {
      get { return this.typeGuid; }
    }

    /// <summary>
    /// Returns the path where the COM object is installed.
    /// </summary>
    public string InstalledFilePath
    {
      get { return this.installedFilePath; }
    }

    [SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "LCID")]
    public string LCID
    {
      get { return lcid; }
    }

    public int MajorVersionNumber
    {
      get
      {
        if (string.IsNullOrEmpty(majorVersionNumber))
        {
          return 0;
        }
        return int.Parse(majorVersionNumber, CultureInfo.CurrentCulture);
      }
    }
    public int MinorVersionNumber
    {
      get
      {
        if (string.IsNullOrEmpty(minorVersionNumber))
        {
          return 0;
        }
        return int.Parse(minorVersionNumber, CultureInfo.CurrentCulture);
      }
    }
    private Automation.OAComReference comReference;
    internal override object Object
    {
      get
      {
        if (null == comReference)
        {
          comReference = new Automation.OAComReference(this);
        }
        return comReference;
      }
    }
    #endregion

    #region ctors
    /// <summary>
    /// Constructor for the ComReferenceNode. 
    /// </summary>
    public ComReferenceNode(ProjectNode root, ProjectElement element)
      : base(root, element)
    {
      this.typeName = this.ItemNode.GetMetadata(ProjectFileConstants.Include);
      string typeGuidAsString = this.ItemNode.GetMetadata(ProjectFileConstants.Guid);
      if (typeGuidAsString != null)
      {
        this.typeGuid = new Guid(typeGuidAsString);
      }

      this.majorVersionNumber = this.ItemNode.GetMetadata(ProjectFileConstants.VersionMajor);
      this.minorVersionNumber = this.ItemNode.GetMetadata(ProjectFileConstants.VersionMinor);
      this.lcid = this.ItemNode.GetMetadata(ProjectFileConstants.Lcid);
      this.SetProjectItemsThatRelyOnReferencesToBeResolved(false);
      this.SetInstalledFilePath();
    }

    /// <summary>
    /// Overloaded constructor for creating a ComReferenceNode from selector data
    /// </summary>
    /// <param name="root">The Project node</param>
    /// <param name="selectorData">The component selctor data.</param>
    public ComReferenceNode(ProjectNode root, VSCOMPONENTSELECTORDATA selectorData)
      : base(root)
    {
      if (root == null)
      {
        throw new ArgumentNullException("root");
      }
      if (selectorData.type == VSCOMPONENTTYPE.VSCOMPONENTTYPE_Project
        || selectorData.type == VSCOMPONENTTYPE.VSCOMPONENTTYPE_ComPlus)
      {
        throw new ArgumentException();
      }

      // Initialize private state
      this.typeName = selectorData.bstrTitle;
      this.typeGuid = selectorData.guidTypeLibrary;
      this.majorVersionNumber = selectorData.wTypeLibraryMajorVersion.ToString(CultureInfo.InvariantCulture);
      this.minorVersionNumber = selectorData.wTypeLibraryMinorVersion.ToString(CultureInfo.InvariantCulture);
      this.lcid = selectorData.lcidTypeLibrary.ToString(CultureInfo.InvariantCulture);

      // Check to see if the COM object actually exists.
      this.SetInstalledFilePath();
      // If the value cannot be set throw.
      if (String.IsNullOrEmpty(this.installedFilePath))
      {
        throw new ArgumentException();
      }
    }
    #endregion

    #region methods
    /// <summary>
    /// Links a reference node to the project and hierarchy.
    /// </summary>
    protected override void BindReferenceData()
    {
      Debug.Assert(this.ItemNode != null, "The AssemblyName field has not been initialized");

      // We need to create the project element at this point if it has not been created.
      // We cannot do that from the ctor if input comes from a component selector data, since had we been doing that we would have added a project element to the project file.  
      // The problem with that approach is that we would need to remove the project element if the item cannot be added to the hierachy (E.g. It already exists).
      // It is just safer to update the project file now. This is the intent of this method.
      // Call MSBuild to build the target ResolveComReferences
      if (this.ItemNode == null || this.ItemNode.Item == null)
      {
        this.ItemNode = this.GetProjectElementBasedOnInputFromComponentSelectorData();
      }

      this.SetProjectItemsThatRelyOnReferencesToBeResolved(true);
    }

    /// <summary>
    /// Checks if a reference is already added. The method parses all references and compares the the FinalItemSpec and the Guid.
    /// </summary>
    /// <returns>true if the assembly has already been added.</returns>
    protected override bool IsAlreadyAdded()
    {
      ReferenceContainerNode referencesFolder = this.ProjectMgr.FindChild(ReferenceContainerNode.ReferencesNodeVirtualName) as ReferenceContainerNode;
      Debug.Assert(referencesFolder != null, "Could not find the References node");

      for (HierarchyNode n = referencesFolder.FirstChild; n != null; n = n.NextSibling)
      {
        if (n is ComReferenceNode)
        {
          ComReferenceNode refererenceNode = n as ComReferenceNode;

          // We check if the name and guids are the same
          if (refererenceNode.TypeGuid == this.TypeGuid && String.Compare(refererenceNode.Caption, this.Caption, StringComparison.OrdinalIgnoreCase) == 0)
          {
            return true;
          }
        }
      }

      return false;
    }

    /// <summary>
    /// Determines if this is node a valid node for painting the default reference icon.
    /// </summary>
    /// <returns></returns>
    protected override bool CanShowDefaultIcon()
    {
      return !String.IsNullOrEmpty(this.installedFilePath);
    }

    /// <summary>
    /// This is an helper method to convert the VSCOMPONENTSELECTORDATA recieved by the
    /// implementer of IVsComponentUser into a ProjectElement that can be used to create
    /// an instance of this class.
    /// This should not be called for project reference or reference to managed assemblies.
    /// </summary>
    /// <returns>ProjectElement corresponding to the COM component passed in</returns>
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Globalization", "CA1308:NormalizeStringsToUppercase")]
        private ProjectElement GetProjectElementBasedOnInputFromComponentSelectorData()
    {

      ProjectElement element = new ProjectElement(this.ProjectMgr, this.typeName, ProjectFileConstants.COMReference);

      // Set the basic information regarding this COM component
      element.SetMetadata(ProjectFileConstants.Guid, this.typeGuid.ToString("B"));
      element.SetMetadata(ProjectFileConstants.VersionMajor, this.majorVersionNumber);
      element.SetMetadata(ProjectFileConstants.VersionMinor, this.minorVersionNumber);
      element.SetMetadata(ProjectFileConstants.Lcid, this.lcid);
      element.SetMetadata(ProjectFileConstants.Isolated, false.ToString());

      // See if a PIA exist for this component
      TypeLibConverter typelib = new TypeLibConverter();
      string assemblyName;
      string assemblyCodeBase;
      if (typelib.GetPrimaryInteropAssembly(this.typeGuid, Int32.Parse(this.majorVersionNumber, CultureInfo.InvariantCulture), Int32.Parse(this.minorVersionNumber, CultureInfo.InvariantCulture), Int32.Parse(this.lcid, CultureInfo.InvariantCulture), out assemblyName, out assemblyCodeBase))
      {
        element.SetMetadata(ProjectFileConstants.WrapperTool, WrapperToolAttributeValue.Primary.ToString().ToLowerInvariant());
      }
      else
      {
        // MSBuild will have to generate an interop assembly
        element.SetMetadata(ProjectFileConstants.WrapperTool, WrapperToolAttributeValue.TlbImp.ToString().ToLowerInvariant());
        element.SetMetadata(ProjectFileConstants.Private, true.ToString());
      }
      return element;
    }

    private void SetProjectItemsThatRelyOnReferencesToBeResolved(bool renameItemNode)
    {
      // Call MSBuild to build the target ResolveComReferences
      bool success;
      ErrorHandler.ThrowOnFailure(this.ProjectMgr.BuildTarget(MsBuildTarget.ResolveComReferences, out success));
      if (!success)
        throw new InvalidOperationException();

      // Now loop through the generated COM References to find the corresponding one
      Microsoft.Build.BuildEngine.BuildItemGroup comReferences = this.ProjectMgr.BuildProject.GetEvaluatedItemsByName(MsBuildGeneratedItemType.ComReferenceWrappers);
      foreach (Microsoft.Build.BuildEngine.BuildItem reference in comReferences)
      {
        if (String.Compare(reference.GetMetadata(ProjectFileConstants.Guid), this.typeGuid.ToString("B"), StringComparison.OrdinalIgnoreCase) == 0
          && String.Compare(reference.GetMetadata(ProjectFileConstants.VersionMajor), this.majorVersionNumber, StringComparison.OrdinalIgnoreCase) == 0
          && String.Compare(reference.GetMetadata(ProjectFileConstants.VersionMinor), this.minorVersionNumber, StringComparison.OrdinalIgnoreCase) == 0
          && String.Compare(reference.GetMetadata(ProjectFileConstants.Lcid), this.lcid, StringComparison.OrdinalIgnoreCase) == 0)
        {
          string name = reference.FinalItemSpec;
          if (Path.IsPathRooted(name))
          {
            this.projectRelativeFilePath = name;
          }
          else
          {
            this.projectRelativeFilePath = Path.Combine(this.ProjectMgr.ProjectFolder, name);
          }

          if (renameItemNode)
          {
            this.ItemNode.Rename(Path.GetFileNameWithoutExtension(name));
          }
          break;
        }
      }
    }

    /// <summary>
    /// Verify that the TypeLib is registered and set the the installed file path of the com reference.
    /// </summary>
    /// <returns></returns>
    private void SetInstalledFilePath()
    {
      string registryPath = string.Format(CultureInfo.InvariantCulture, @"TYPELIB\{0}\{1}.{2}", this.typeGuid.ToString("B"), this.majorVersionNumber, this.minorVersionNumber);
      using (RegistryKey typeLib = Registry.ClassesRoot.OpenSubKey(registryPath))
      {
        if (typeLib != null)
        {
          // Check if we need to set the name for this type.
          if (string.IsNullOrEmpty(this.typeName))
          {
            this.typeName = typeLib.GetValue(string.Empty) as string;
          }
          // Now get the path to the file that contains this type library.
          using (RegistryKey installKey = typeLib.OpenSubKey(@"0\win32"))
          {
            this.installedFilePath = installKey.GetValue(String.Empty) as String;
          }
        }
      }
    }

    #endregion
  }
}
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