private static bool MatchPredicate(PackageItem package, BinaryPredicate predicate)
{
var expr1 = predicate.Operand1 as Expression;
switch (predicate.Operator)
{
case Operator.Or:
return Match(package, predicate.Operand1) || Match(package, predicate.Operand2);
case Operator.And:
return Match(package, predicate.Operand1) && Match(package, predicate.Operand2);
case Operator.Equal:
case Operator.NotEqual:
case Operator.GreaterThan:
case Operator.LessThan:
case Operator.GreaterThanOrEqual:
case Operator.LessThanOrEqual:
if (expr1 != null)
{
switch (expr1.Value)
{
case "version": return MatchVersion(package, predicate);
}
}
break;
}
return true;
}
public PropertiesViewModel(PackageItem packageItem)
{
DisplayName = "Properties";
PackageItem = packageItem;
CloseCommand = new RelayCommand(TryClose);
GetFiles();
}
internal static bool Match(PackageItem package, IOperand operand)
{
var expression = operand as Expression;
if (expression != null)
return MatchExpression(package, expression);
return MatchPredicate(package, operand);
}
private static bool MatchPredicate(PackageItem package, UnaryPredicate predicate)
{
switch (predicate.Operator)
{
case Operator.Not:
return !Match(package, predicate.Operand);
}
return true;
}
private static bool MatchExpression(PackageItem package, Expression expression)
{
switch (expression.Value)
{
case "installed": return package.IsInstalled;
case "updatable": return package.PackageIdentity.Flags.Count(n => n == "updatable") != 0;
case "latest": return package.IsLatest;
}
return package.Name.ToLowerInvariant().Contains(expression.Value.ToLowerInvariant());
}
private static bool MatchPredicate(PackageItem package, IOperand predicate)
{
var unaryPredicate = predicate as UnaryPredicate;
if (unaryPredicate != null)
return MatchPredicate(package, unaryPredicate);
var binaryPredicate = predicate as BinaryPredicate;
if (binaryPredicate != null)
return MatchPredicate(package, binaryPredicate);
return true;
}
private static bool MatchVersion(PackageItem package, BinaryPredicate predicate)
{
var expr2 = predicate.Operand2 as Expression;
if (expr2 != null)
{
try
{
switch (predicate.Operator)
{
case Operator.Equal: return AsVersion(package.PackageIdentity.Version) == AsVersion(expr2.Value);
case Operator.NotEqual: return AsVersion(package.PackageIdentity.Version) != AsVersion(expr2.Value);
case Operator.GreaterThan: return AsVersion(package.PackageIdentity.Version) > AsVersion(expr2.Value);
case Operator.LessThan: return AsVersion(package.PackageIdentity.Version) < AsVersion(expr2.Value);
case Operator.GreaterThanOrEqual: return AsVersion(package.PackageIdentity.Version) >= AsVersion(expr2.Value);
case Operator.LessThanOrEqual: return AsVersion(package.PackageIdentity.Version) <= AsVersion(expr2.Value);
}
}
catch (Exception e)
{
Console.WriteLine(e);
}
}
return true;
}
protected bool Equals(PackageItem other)
{
return string.Equals(PackageIdentity, other.PackageIdentity);
}
private bool MarkRelated(PackageItem[] installed = null, PackageItem[] updated = null, PackageItem[] removed = null, bool unmark = false)
{
if ((installed != null && installed.Any()) || (updated != null && updated.Any()) || (removed != null && removed.Any()))
{
if (Options.AskToConfirmChangesThatAlsoAffectOtherPackages)
{
var canProceed = WindowManager.ShowDialog(new MarkAdditionalChangesViewModel(installed, updated, removed));
if (canProceed != true)
return false;
}
if (installed != null) foreach (var p in installed)
p.Mark = unmark ? PackageMark.Unmarked : PackageMark.MarkedForInstallation;
if (updated != null) foreach (var p in updated)
p.Mark = unmark ? PackageMark.Unmarked : PackageMark.MarkedForInstallation;
if (removed != null) foreach (var p in removed)
p.Mark = unmark ? PackageMark.Unmarked : PackageMark.MarkedForRemoval;
}
return true;
}
