486 lines
20 KiB
C#
486 lines
20 KiB
C#
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/* ****************************************************************************
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*
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* Copyright (c) Microsoft Corporation.
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*
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* This source code is subject to terms and conditions of the Apache License, Version 2.0. A
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* copy of the license can be found in the License.html file at the root of this distribution. If
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* you cannot locate the Apache License, Version 2.0, please send an email to
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* vspython@microsoft.com. By using this source code in any fashion, you are agreeing to be bound
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* by the terms of the Apache License, Version 2.0.
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*
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* You must not remove this notice, or any other, from this software.
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*
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* ***************************************************************************/
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using System;
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using System.Collections.Generic;
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using System.ComponentModel.Design;
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using System.Diagnostics.Contracts;
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using System.Runtime.InteropServices;
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using Microsoft.VisualStudio;
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using Microsoft.VisualStudio.ComponentModelHost;
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using Microsoft.VisualStudio.Editor;
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using Microsoft.VisualStudio.OLE.Interop;
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using Microsoft.VisualStudio.Shell.Interop;
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using Microsoft.VisualStudio.Text;
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using Microsoft.VisualStudio.TextManager.Interop;
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using Microsoft.VisualStudio.Project;
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namespace Microsoft.VisualStudio.Navigation {
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/// <summary>
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/// Inplementation of the service that builds the information to expose to the symbols
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/// navigation tools (class view or object browser) from the source files inside a
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/// hierarchy.
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/// </summary>
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public abstract partial class LibraryManager : IDisposable, IVsRunningDocTableEvents {
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private readonly CommonPackage/*!*/ _package;
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private readonly Dictionary<uint, TextLineEventListener> _documents;
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private readonly Dictionary<IVsHierarchy, HierarchyListener> _hierarchies;
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private readonly Dictionary<ModuleId, LibraryNode> _files;
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private readonly Library _library;
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private readonly IVsEditorAdaptersFactoryService _adapterFactory;
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private uint _objectManagerCookie;
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private uint _runningDocTableCookie;
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public LibraryManager(CommonPackage/*!*/ package) {
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Contract.Assert(package != null);
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_package = package;
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_documents = new Dictionary<uint, TextLineEventListener>();
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_hierarchies = new Dictionary<IVsHierarchy, HierarchyListener>();
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_library = new Library(new Guid(CommonConstants.LibraryGuid));
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_library.LibraryCapabilities = (_LIB_FLAGS2)_LIB_FLAGS.LF_PROJECT;
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_files = new Dictionary<ModuleId, LibraryNode>();
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var model = ((IServiceContainer)package).GetService(typeof(SComponentModel)) as IComponentModel;
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_adapterFactory = model.GetService<IVsEditorAdaptersFactoryService>();
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// Register our library now so it'll be available for find all references
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RegisterLibrary();
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}
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public Library Library {
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get { return _library; }
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}
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protected abstract LibraryNode CreateLibraryNode(IScopeNode subItem, string namePrefix, IVsHierarchy hierarchy, uint itemid);
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public virtual LibraryNode CreateFileLibraryNode(HierarchyNode hierarchy, string name, string filename, LibraryNodeType libraryNodeType) {
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return new LibraryNode(name, filename, libraryNodeType);
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}
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private object GetPackageService(Type/*!*/ type) {
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return ((System.IServiceProvider)_package).GetService(type);
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}
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private void RegisterForRDTEvents() {
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if (0 != _runningDocTableCookie) {
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return;
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}
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IVsRunningDocumentTable rdt = GetPackageService(typeof(SVsRunningDocumentTable)) as IVsRunningDocumentTable;
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if (null != rdt) {
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// Do not throw here in case of error, simply skip the registration.
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rdt.AdviseRunningDocTableEvents(this, out _runningDocTableCookie);
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}
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}
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private void UnregisterRDTEvents() {
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if (0 == _runningDocTableCookie) {
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return;
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}
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IVsRunningDocumentTable rdt = GetPackageService(typeof(SVsRunningDocumentTable)) as IVsRunningDocumentTable;
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if (null != rdt) {
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// Do not throw in case of error.
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rdt.UnadviseRunningDocTableEvents(_runningDocTableCookie);
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}
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_runningDocTableCookie = 0;
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}
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#region ILibraryManager Members
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public void RegisterHierarchy(IVsHierarchy hierarchy) {
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if ((null == hierarchy) || _hierarchies.ContainsKey(hierarchy)) {
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return;
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}
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RegisterLibrary();
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HierarchyListener listener = new HierarchyListener(hierarchy, this);
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listener.StartListening(true);
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_hierarchies.Add(hierarchy, listener);
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RegisterForRDTEvents();
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}
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private void RegisterLibrary() {
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if (0 == _objectManagerCookie) {
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IVsObjectManager2 objManager = GetPackageService(typeof(SVsObjectManager)) as IVsObjectManager2;
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if (null == objManager) {
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return;
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}
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Microsoft.VisualStudio.ErrorHandler.ThrowOnFailure(
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objManager.RegisterSimpleLibrary(_library, out _objectManagerCookie));
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}
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}
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public void UnregisterHierarchy(IVsHierarchy hierarchy) {
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if ((null == hierarchy) || !_hierarchies.ContainsKey(hierarchy)) {
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return;
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}
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HierarchyListener listener = _hierarchies[hierarchy];
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if (null != listener) {
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listener.Dispose();
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}
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_hierarchies.Remove(hierarchy);
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if (0 == _hierarchies.Count) {
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UnregisterRDTEvents();
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}
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lock (_files) {
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ModuleId[] keys = new ModuleId[_files.Keys.Count];
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_files.Keys.CopyTo(keys, 0);
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foreach (ModuleId id in keys) {
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if (hierarchy.Equals(id.Hierarchy)) {
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_library.RemoveNode(_files[id]);
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_files.Remove(id);
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}
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}
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}
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// Remove the document listeners.
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uint[] docKeys = new uint[_documents.Keys.Count];
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_documents.Keys.CopyTo(docKeys, 0);
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foreach (uint id in docKeys) {
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TextLineEventListener docListener = _documents[id];
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if (hierarchy.Equals(docListener.FileID.Hierarchy)) {
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_documents.Remove(id);
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docListener.Dispose();
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}
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}
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}
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public void RegisterLineChangeHandler(uint document,
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TextLineChangeEvent lineChanged, Action<IVsTextLines> onIdle) {
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_documents[document].OnFileChangedImmediate += delegate(object sender, TextLineChange[] changes, int fLast) {
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lineChanged(sender, changes, fLast);
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};
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_documents[document].OnFileChanged += (sender, args) => onIdle(args.TextBuffer);
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}
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#endregion
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#region Library Member Production
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/// <summary>
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/// Overridden in the base class to receive notifications of when a file should
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/// be analyzed for inclusion in the library. The derived class should queue
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/// the parsing of the file and when it's complete it should call FileParsed
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/// with the provided LibraryTask and an IScopeNode which provides information
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/// about the members of the file.
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/// </summary>
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protected virtual void OnNewFile(LibraryTask task) {
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}
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/// <summary>
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/// Called by derived class when a file has been parsed. The caller should
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/// provide the LibraryTask received from the OnNewFile call and an IScopeNode
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/// which represents the contents of the library.
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///
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/// It is safe to call this method from any thread.
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/// </summary>
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protected void FileParsed(LibraryTask task, IScopeNode scope) {
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try {
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var project = task.ModuleID.Hierarchy.GetProject().GetCommonProject();
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HierarchyNode fileNode = fileNode = project.NodeFromItemId(task.ModuleID.ItemID);
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if (fileNode == null) {
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return;
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}
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LibraryNode module = CreateFileLibraryNode(
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fileNode,
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System.IO.Path.GetFileName(task.FileName),
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task.FileName,
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LibraryNodeType.PhysicalContainer
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);
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// TODO: Creating the module tree should be done lazily as needed
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// Currently we replace the entire tree and rely upon the libraries
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// update count to invalidate the whole thing. We could do this
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// finer grained and only update the changed nodes. But then we
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// need to make sure we're not mutating lists which are handed out.
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CreateModuleTree(module, module, scope, task.FileName + ":", task.ModuleID);
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if (null != task.ModuleID) {
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LibraryNode previousItem = null;
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lock (_files) {
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if (_files.TryGetValue(task.ModuleID, out previousItem)) {
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_files.Remove(task.ModuleID);
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}
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}
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_library.RemoveNode(previousItem);
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}
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_library.AddNode(module);
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if (null != task.ModuleID) {
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lock (_files) {
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_files.Add(task.ModuleID, module);
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}
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}
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} catch (COMException) {
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// we're shutting down and can't get the project
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}
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}
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private void CreateModuleTree(LibraryNode root, LibraryNode current, IScopeNode scope, string namePrefix, ModuleId moduleId) {
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if ((null == root) || (null == scope) || (null == scope.NestedScopes)) {
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return;
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}
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foreach (IScopeNode subItem in scope.NestedScopes) {
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LibraryNode newNode = CreateLibraryNode(subItem, namePrefix, moduleId.Hierarchy, moduleId.ItemID);
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string newNamePrefix = namePrefix;
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// The classes are always added to the root node, the functions to the
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// current node.
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if ((newNode.NodeType & LibraryNodeType.Classes) != LibraryNodeType.None) {
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// Classes are always added to the root.
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root.AddNode(newNode);
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newNamePrefix = namePrefix + newNode.Name + ".";
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} else {
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current.AddNode(newNode);
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}
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// Now use recursion to get the other types.
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CreateModuleTree(root, newNode, subItem, newNamePrefix, moduleId);
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}
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}
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#endregion
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#region Hierarchy Events
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private void OnNewFile(object sender, HierarchyEventArgs args) {
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IVsHierarchy hierarchy = sender as IVsHierarchy;
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if (null == hierarchy || IsNonMemberItem(hierarchy, args.ItemID)) {
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return;
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}
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ITextBuffer buffer = null;
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if (null != args.TextBuffer) {
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buffer = _adapterFactory.GetDocumentBuffer(args.TextBuffer);
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}
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var id = new ModuleId(hierarchy, args.ItemID);
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OnNewFile(new LibraryTask(args.CanonicalName, buffer, new ModuleId(hierarchy, args.ItemID)));
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}
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/// <summary>
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/// Handles the delete event, checking to see if this is a project item.
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="args"></param>
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private void OnDeleteFile(object sender, HierarchyEventArgs args) {
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IVsHierarchy hierarchy = sender as IVsHierarchy;
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if (null == hierarchy || IsNonMemberItem(hierarchy, args.ItemID)) {
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return;
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}
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OnDeleteFile(hierarchy, args);
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}
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/// <summary>
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/// Does a delete w/o checking if it's a non-meber item, for handling the
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/// transition from member item to non-member item.
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/// </summary>
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private void OnDeleteFile(IVsHierarchy hierarchy, HierarchyEventArgs args) {
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ModuleId id = new ModuleId(hierarchy, args.ItemID);
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LibraryNode node = null;
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lock (_files) {
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if (_files.TryGetValue(id, out node)) {
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_files.Remove(id);
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}
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}
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if (null != node) {
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_library.RemoveNode(node);
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}
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}
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private void IsNonMemberItemChanged(object sender, HierarchyEventArgs args) {
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IVsHierarchy hierarchy = sender as IVsHierarchy;
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if (null == hierarchy) {
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return;
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}
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if (!IsNonMemberItem(hierarchy, args.ItemID)) {
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OnNewFile(hierarchy, args);
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} else {
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OnDeleteFile(hierarchy, args);
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}
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}
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/// <summary>
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/// Checks whether this hierarchy item is a project member (on disk items from show all
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/// files aren't considered project members).
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/// </summary>
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protected bool IsNonMemberItem(IVsHierarchy hierarchy, uint itemId) {
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object val;
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int hr = hierarchy.GetProperty(itemId, (int)__VSHPROPID.VSHPROPID_IsNonMemberItem, out val);
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return ErrorHandler.Succeeded(hr) && (bool)val;
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}
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#endregion
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#region IVsRunningDocTableEvents Members
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public int OnAfterAttributeChange(uint docCookie, uint grfAttribs) {
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if ((grfAttribs & (uint)(__VSRDTATTRIB.RDTA_MkDocument)) == (uint)__VSRDTATTRIB.RDTA_MkDocument) {
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IVsRunningDocumentTable rdt = GetPackageService(typeof(SVsRunningDocumentTable)) as IVsRunningDocumentTable;
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if (rdt != null) {
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uint flags, readLocks, editLocks, itemid;
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IVsHierarchy hier;
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IntPtr docData = IntPtr.Zero;
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string moniker;
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int hr;
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try {
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hr = rdt.GetDocumentInfo(docCookie, out flags, out readLocks, out editLocks, out moniker, out hier, out itemid, out docData);
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TextLineEventListener listner;
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if (_documents.TryGetValue(docCookie, out listner)) {
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listner.FileName = moniker;
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}
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} finally {
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if (IntPtr.Zero != docData) {
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Marshal.Release(docData);
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}
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}
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}
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}
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return VSConstants.S_OK;
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}
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public int OnAfterDocumentWindowHide(uint docCookie, IVsWindowFrame pFrame) {
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return VSConstants.S_OK;
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}
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public int OnAfterFirstDocumentLock(uint docCookie, uint dwRDTLockType, uint dwReadLocksRemaining, uint dwEditLocksRemaining) {
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return VSConstants.S_OK;
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}
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public int OnAfterSave(uint docCookie) {
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return VSConstants.S_OK;
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}
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public int OnBeforeDocumentWindowShow(uint docCookie, int fFirstShow, IVsWindowFrame pFrame) {
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// Check if this document is in the list of the documents.
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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;
|
||
|
|
}
|
||
|
|
|
||
|
|
public int OnBeforeLastDocumentUnlock(uint docCookie, uint dwRDTLockType, uint dwReadLocksRemaining, uint dwEditLocksRemaining) {
|
||
|
|
if ((0 != dwEditLocksRemaining) || (0 != dwReadLocksRemaining)) {
|
||
|
|
return VSConstants.S_OK;
|
||
|
|
}
|
||
|
|
TextLineEventListener listener;
|
||
|
|
if (!_documents.TryGetValue(docCookie, out listener) || (null == listener)) {
|
||
|
|
return VSConstants.S_OK;
|
||
|
|
}
|
||
|
|
using (listener) {
|
||
|
|
_documents.Remove(docCookie);
|
||
|
|
// Now make sure that the information about this file are up to date (e.g. it is
|
||
|
|
// possible that Class View shows something strange if the file was closed without
|
||
|
|
// saving the changes).
|
||
|
|
HierarchyEventArgs args = new HierarchyEventArgs(listener.FileID.ItemID, listener.FileName);
|
||
|
|
OnNewFile(listener.FileID.Hierarchy, args);
|
||
|
|
}
|
||
|
|
return VSConstants.S_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endregion
|
||
|
|
|
||
|
|
public void OnIdle(IOleComponentManager compMgr) {
|
||
|
|
foreach (TextLineEventListener listener in _documents.Values) {
|
||
|
|
if (compMgr.FContinueIdle() == 0) {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
listener.OnIdle();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#region IDisposable Members
|
||
|
|
|
||
|
|
public void Dispose() {
|
||
|
|
// Dispose all the listeners.
|
||
|
|
foreach (HierarchyListener listener in _hierarchies.Values) {
|
||
|
|
listener.Dispose();
|
||
|
|
}
|
||
|
|
_hierarchies.Clear();
|
||
|
|
|
||
|
|
foreach (TextLineEventListener textListener in _documents.Values) {
|
||
|
|
textListener.Dispose();
|
||
|
|
}
|
||
|
|
_documents.Clear();
|
||
|
|
|
||
|
|
// Remove this library from the object manager.
|
||
|
|
if (0 != _objectManagerCookie) {
|
||
|
|
IVsObjectManager2 mgr = GetPackageService(typeof(SVsObjectManager)) as IVsObjectManager2;
|
||
|
|
if (null != mgr) {
|
||
|
|
mgr.UnregisterLibrary(_objectManagerCookie);
|
||
|
|
}
|
||
|
|
_objectManagerCookie = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Unregister this object from the RDT events.
|
||
|
|
UnregisterRDTEvents();
|
||
|
|
}
|
||
|
|
|
||
|
|
#endregion
|
||
|
|
}
|
||
|
|
}
|