public PackageViewModel(IPackageService packageService, IChocolateyService chocolateyService, INavigationService navigationService)
{
_packageService = packageService;
_chocolateyService = chocolateyService;
_navigationService = navigationService;
PackagesChangedEventManager.AddListener(_chocolateyService, this);
_isInstalled = new Lazy <bool>(() => _chocolateyService.IsPackageInstalled(Id, Version));
}
public bool ReceiveWeakEvent(Type managerType, object sender, EventArgs e)
{
if (sender is IChocolateyService && e is PackagesChangedEventArgs)
{
_isInstalled = new Lazy <bool>(() => _chocolateyService.IsPackageInstalled(Id, Version));
NotifyPropertyChanged("IsInstalled");
NotifyPropertyChanged("CanUpdate");
}
return(true);
}