/// <summary>
/// Converts a <see cref="IVsHierarchy"/> to a <see cref="IVsHierarchyItem"/>.
/// </summary>
public static async Task <IVsHierarchyItem> ToHierarchyItemAsync(this IVsHierarchy hierarchy, uint itemId)
{
if (hierarchy == null)
{
throw new ArgumentNullException(nameof(hierarchy));
}
IVsHierarchyItemManager manager = await VS.GetMefServiceAsync <IVsHierarchyItemManager>();
return(manager.GetHierarchyItem(hierarchy, itemId));
}
private static async Task <TextFilterFactory> CreateTextFilterFactoryAsync()
{
IPatternMatcherFactory patternMatcherFactory;
patternMatcherFactory = await VS.GetMefServiceAsync <IPatternMatcherFactory>();
return((pattern, isRegularExpression) => isRegularExpression
? new RegexTextFilter(pattern)
: new PatternTextFilter(pattern, patternMatcherFactory));
}
/// <summary>
/// Converts a <see cref="IVsHierarchy"/> to a <see cref="IVsHierarchyItem"/>.
/// </summary>
/// <returns>Returns <see langword="null"/> if unable to get the hierarchy item.</returns>
public static async Task <IVsHierarchyItem?> ToHierarchyItemAsync(this IVsHierarchy hierarchy, uint itemId)
{
if (hierarchy == null)
{
return(null);
}
IVsHierarchyItemManager?manager = await VS.GetMefServiceAsync <IVsHierarchyItemManager>();
manager.TryGetHierarchyItem(hierarchy, itemId, out IVsHierarchyItem? item);
return(item);
}
private static async Task <List <(HierarchyNode Hierarchy, Guid Parent)> > GetNodesAsync()
{
IVsSolution solution;
IVsImageService2 imageService;
IVsHierarchyItemManager hierarchyItemManager;
List <(HierarchyNode Hierarchy, Guid Parent)> output;
await ThreadHelper.JoinableTaskFactory.SwitchToMainThreadAsync();
solution = await VS.Services.GetSolutionAsync();
imageService = (IVsImageService2)await VS.Services.GetImageServiceAsync();
hierarchyItemManager = await VS.GetMefServiceAsync <IVsHierarchyItemManager>();
output = new List <(HierarchyNode Hierarchy, Guid Parent)>();
foreach (var hierarchy in solution.GetAllProjectHierarchies(ProjectStateFilter.All))
{
if (!TryGetIdentifier(solution, hierarchy, out Guid identifier))
{
continue;
}
// Always ignore the "Miscellaneous Files" project
// because the items in it are not part of the solution.
if (identifier.Equals(VSConstants.CLSID.MiscellaneousFilesProject_guid))
{
continue;
}
output.Add(
(
CreateNode(hierarchy, identifier, imageService, hierarchyItemManager),
GetParentIdentifier(solution, hierarchy)
)
);
}
return(output);
}
/// <summary>
/// Opens an undo context with the specified name. Remember to call <c>Complete()</c> and <c>Dispose()</c> to commit the transaction.
/// </summary>
public static async Task <ITextUndoTransaction> OpenUndoContextAsync(this ITextBuffer buffer, string name)
{
ITextUndoHistoryRegistry?registry = await VS.GetMefServiceAsync <ITextUndoHistoryRegistry>();
return(registry.GetHistory(buffer).CreateTransaction(name));
}