void ev_SubdirectoryChanged(FsEventsWatcher sender, string dirpath)
{
if (_watchcontents)
{
FireSubdirectoryChanged(dirpath);
}
}
void StopWatcher()
{
Trace("Stopping FileSystemWatcher");
if (_fswatcher != null)
{
_fswatcher.Dispose();
}
_fswatcher = null;
}
void ev_RootChanged(FsEventsWatcher sender, string rootpath, bool exists)
{
if (!Exists && Directory.Exists(_fullpath))
{
Exists = true;
FireAvailabilityChanged();
}
else if (Exists && !Directory.Exists(_fullpath))
{
Exists = false;
FireAvailabilityChanged();
}
}
void StartWatcher()
{
Trace("Starting FileSystemWatcher");
if (_fswatcher != null)
{
_fswatcher.Dispose();
}
#if SYSTEM_MACOSX
_fswatcher = new FsEventsWatcher(_fullpath);
_fswatcher.RootChanged += ev_RootChanged;
_fswatcher.SubdirectoryChanged += ev_SubdirectoryChanged;
#else
_fswatcher = new FileSystemWatcher();
_fswatcher.Path = _fullpath;
_fswatcher.IncludeSubdirectories = true;
_fswatcher.NotifyFilter = NotifyFilters.FileName
| NotifyFilters.DirectoryName
| NotifyFilters.Attributes
| NotifyFilters.Size
| NotifyFilters.LastWrite
| NotifyFilters.CreationTime
| NotifyFilters.Security;
_fswatcher.Changed += new FileSystemEventHandler(ev_FileChanged);
_fswatcher.Created += new FileSystemEventHandler(ev_FileChanged);
_fswatcher.Deleted += new FileSystemEventHandler(ev_FileChanged);
_fswatcher.Renamed += new RenamedEventHandler(ev_FileRenamed);
try {
// this can throw if, e.g. dir went away between when we
// checked for existence and now. don't bring down process.
_fswatcher.EnableRaisingEvents = true;
} catch {
Trace("Failed to start FileSystemWatcher: directory is inaccessible");
Exists = false;
}
#endif
}
