public override VisualStudioDocumentTracker Create(ITextBuffer textBuffer)
{
if (textBuffer == null)
{
throw new ArgumentNullException(nameof(textBuffer));
}
if (!_textDocumentFactory.TryGetTextDocument(textBuffer, out var textDocument))
{
Debug.Fail("Text document should be available from the text buffer.");
return(null);
}
var filePath = textDocument.FilePath;
var project = _projectService.GetHostProject(textBuffer);
if (project == null)
{
Debug.Fail("Text buffer should belong to a project.");
return(null);
}
var projectPath = _projectService.GetProjectPath(project);
var tracker = new DefaultVisualStudioDocumentTracker(filePath, projectPath, _projectManager, _editorSettingsManager, _workspace, textBuffer, _importDocumentManager);
return(tracker);
}
public void Subscribe()
{
// Fundamentally we have a Razor half of the world as as soon as the document is open - and then later
// the C# half of the world will be initialized. This code is in general pretty tolerant of
// unexpected /impossible states.
//
// We also want to successfully shut down if the buffer is something other than .cshtml.
IVsHierarchy hierarchy = null;
string projectPath = null;
var isSupportedProject = false;
if (_textBuffer.ContentType.IsOfType(RazorLanguage.ContentType) &&
// We expect the document to have a hierarchy even if it's not a real 'project'.
// However the hierarchy can be null when the document is in the process of closing.
(hierarchy = _projectService.GetHierarchy(_textBuffer)) != null)
{
projectPath = _projectService.GetProjectPath(hierarchy);
isSupportedProject = _projectService.IsSupportedProject(hierarchy);
}
if (!isSupportedProject || projectPath == null)
{
return;
}
_isSupportedProject = isSupportedProject;
_projectPath = projectPath;
_project = _projectManager.GetProjectWithFilePath(projectPath);
_projectManager.Changed += ProjectManager_Changed;
OnContextChanged(_project);
}
