public bool Watch(string path, string filter)
{
if (Disposed)
{
return(false);
}
UnWatch();
try
{
UnWatch();
path = ConvertPathToOSPath(path);
filter = ConvertPathToOSPath(filter);
// Check to see if this is a path to a file name
IsFile = !Directory.Exists(path);
if (IsFile)
{
// Use the file name as the filter
filter = Path.GetFileName(path);
// Get the file directory to use as the path
path = Path.GetDirectoryName(path);
}
//Now find a corresponding watcher from the dictionary
string key = System.IO.Path.Combine(path, filter);
RefCountedFileSystemWatcher watcher = null;
if (g_file_system_watchers.TryGetValue(key, out watcher) && null != watcher)
{
Watcher = watcher;
Watcher.AddRef();
}
else
{
watcher = new RefCountedFileSystemWatcher();
g_file_system_watchers.Add(key, watcher);
watcher.Impl.Path = path;
watcher.Impl.Filter = filter ?? "*.*";
Watcher = watcher;
}
Watcher.Impl.Changed += OnChanged;
Watcher.Impl.Created += OnChanged;
Watcher.Impl.Deleted += OnChanged;
Watcher.Impl.Renamed += OnRenamed;
Watcher.Impl.EnableRaisingEvents = true;
return(true);
}
catch (Exception e)
{
var message = string.IsNullOrWhiteSpace(path)
? UI.Localization.LocalizeString("RhinoFileWatcher.Watch *error* empty path", 39)
: string.Format(UI.Localization.LocalizeString("RhinoFileWatcher.Watch *error* parsing path name \"{0}\"", 40), path);
RhinoApp.WriteLine(message);
RhinoFileEventWatcherHooks.DumpException(e);
return(false);
}
}