public ViewModel(WidgetId id)
: base(id)
{
Settings = id.GetSettings() as Settings;
if (Settings == null)
return;
IsPaused = Settings.Freeze;
ImageUrl = Settings.ImageUrl;
AllowDrop = Settings.AllowDropFiles;
TogglePlayPause = new RelayCommand(TogglePlayPauseExecute);
_random = new Random();
_changeTimer = new DispatcherTimer {Interval = Settings.ChangeInterval};
_changeTimer.Tick += (sender, args) => NextImage();
_directoryWatcher = new DirectoryWatcher(new DirectoryWatcherSettings
{
WatchFolders = new List<string> {Settings.RootPath},
FileExtensionWhitelist = ImageHelper.SupportedExtensions,
MaxSize = Settings.FileFilterSize,
Recursive = Settings.Recursive,
DetectNewFiles = false,
DetectModifiedFiles = false
});
_directoryWatcher.CheckDirectoriesForNewFiles();
NextImage();
if (Settings.Recursive)
_directoryWatcher.CheckDirectoriesForNewFilesAsync();
_changeTimer.Start();
}
public override void OnClose()
{
base.OnClose();
_directoryWatcher?.Stop();
_directoryWatcher = null;
_changeTimer?.Stop();
_changeTimer = null;
}