void OnDeleted(object sender, FileSystemEventArgs e)
{
var path = GetVirtualPath(e.FullPath);
if (path.IsDirectory)
{
directoryNameSet.Remove(path.EntityName);
}
RaiseChanged(FileSystemChange.FromDeleted(path));
}
void OnCreated(object sender, FileSystemEventArgs e)
{
if (System.IO.Directory.Exists(e.FullPath))
{
directoryNameSet.Add(Path.GetFileName(e.FullPath));
}
var path = GetVirtualPath(e.FullPath);
RaiseChanged(FileSystemChange.FromCreated(path));
}
void OnRenamed(object sender, RenamedEventArgs e)
{
var oldPath = GetVirtualPath(e.OldFullPath);
var newPath = GetVirtualPath(e.FullPath);
if (oldPath.IsDirectory)
{
directoryNameSet.Remove(oldPath.EntityName);
}
if (newPath.IsDirectory)
{
directoryNameSet.Add(newPath.EntityName);
}
RaiseChanged(FileSystemChange.FromRenamed(oldPath, newPath));
}
void OnChanged(object sender, FileSystemChange e)
{
switch (e.ChangeType)
{
case WatcherChangeTypes.Created:
if (e.NewPath.ParentPath == path)
{
RaiseChanged(e);
}
break;
case WatcherChangeTypes.Changed:
if (e.NewPath.ParentPath == path)
{
RaiseChanged(e);
}
break;
case WatcherChangeTypes.Deleted:
if (e.OldPath.ParentPath == path)
{
RaiseChanged(e);
}
break;
case WatcherChangeTypes.Renamed:
if (e.OldPath.ParentPath == path)
{
if (e.NewPath.ParentPath == path)
{
RaiseChanged(e);
}
else
{
RaiseChanged(FileSystemChange.FromDeleted(e.OldPath));
}
}
else
{
if (e.NewPath.ParentPath == path)
{
RaiseChanged(FileSystemChange.FromCreated(e.NewPath));
}
}
break;
}
}
void RaiseChanged(FileSystemChange change)
{
Changed?.Invoke(this, change);
}
void OnChanged(object sender, FileSystemEventArgs e)
{
var path = GetVirtualPath(e.FullPath);
RaiseChanged(FileSystemChange.FromChanged(path));
}