public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
VisibilityOptions VisibilityOption = parameter == null ? VisibilityOptions.VisibleOnTrue : (VisibilityOptions)Enum.Parse(typeof(VisibilityOptions), parameter.ToString());
switch (VisibilityOption)
{
case VisibilityOptions.VisibleOnFalse:
case VisibilityOptions.HiddenOnTrue:
{
return(value != null ? Visibility.Hidden : Visibility.Visible);
}
case VisibilityOptions.CollapsedOnTrue:
{
return(value != null ? Visibility.Collapsed : Visibility.Visible);
}
case VisibilityOptions.CollapsedOnFalse:
{
return(value != null ? Visibility.Visible : Visibility.Collapsed);
}
}
return(value != null ? Visibility.Visible : Visibility.Hidden);
}
public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
{
bool aggregateBool = false;
foreach (object value in values)
{
aggregateBool |= (bool)value;
}
VisibilityOptions VisibilityOption = parameter == null ? VisibilityOptions.VisibleOnTrue : (VisibilityOptions)Enum.Parse(typeof(VisibilityOptions), parameter.ToString());
switch (VisibilityOption)
{
case VisibilityOptions.VisibleOnFalse:
case VisibilityOptions.HiddenOnTrue:
{
return(aggregateBool ? Visibility.Hidden : Visibility.Visible);
}
case VisibilityOptions.CollapsedOnTrue:
{
return(aggregateBool ? Visibility.Collapsed : Visibility.Visible);
}
case VisibilityOptions.CollapsedOnFalse:
{
return(aggregateBool ? Visibility.Visible : Visibility.Collapsed);
}
}
return(aggregateBool ? Visibility.Visible : Visibility.Hidden);
}
private static bool IsApplicable(FieldInfo field, VisibilityOptions visibility, ResetOptions resetOptions)
{
if (visibility == 0)
{
throw new ArgumentException("VisibilityOptions are not specified.");
}
if (IsBackendField(field))
{
var propertyInfo = ExtractPropertyForBackendField(field);
if (!CheckMethodVisibility(propertyInfo.GetSetMethod(true), visibility))
{
return(false);
}
if (!CheckNoAutoCleanFilter(propertyInfo, resetOptions))
{
return(false);
}
}
else
{
if (!CheckFieldVisibility(field, visibility))
{
return(false);
}
if (!CheckReadonlyFilter(field, resetOptions))
{
return(false);
}
if (!CheckNoAutoCleanFilter(field, resetOptions))
{
return(false);
}
}
return(true);
}
private static bool CheckMethodVisibility(MethodInfo method, VisibilityOptions visibilityOptions)
{
if (method.IsPublic && visibilityOptions.IsSet(VisibilityOptions.Public))
{
return(true);
}
if (method.IsFamily && visibilityOptions.IsSet(VisibilityOptions.Protected))
{
return(true);
}
if (method.IsPrivate && visibilityOptions.IsSet(VisibilityOptions.Private))
{
return(true);
}
if (method.IsAssembly && visibilityOptions.IsSet(VisibilityOptions.Internal))
{
return(true);
}
if (method.IsFamilyOrAssembly && visibilityOptions.IsSet(VisibilityOptions.ProtectedInternal))
{
return(true);
}
if (method.IsFamilyAndAssembly && visibilityOptions.IsSet(VisibilityOptions.ProtectedPrivate))
{
return(true);
}
return(false);
}
public void ResetInstance_should_honor_visibility_options(VisibilityOptions visibilityOptions, bool shouldResetPublic, bool shouldResetProtected, bool shouldResetPrivate, bool shouldResetInternal, bool shouldResetProtectedInternal)
{
var current = new Visibility.Current();
StateCleaner.ResetInstance(current, HierarchyOptions.All, visibilityOptions);
Assert.That(current.PublicField == null, Is.EqualTo(shouldResetPublic));
Assert.That(current.PublicPublicProperty == null, Is.EqualTo(shouldResetPublic));
Assert.That(current.GetProtectedField == null, Is.EqualTo(shouldResetProtected));
Assert.That(current.PublicProtectedProperty == null, Is.EqualTo(shouldResetProtected));
Assert.That(current.GetPrivateField == null, Is.EqualTo(shouldResetPrivate));
Assert.That(current.PublicPrivateProperty == null, Is.EqualTo(shouldResetPrivate));
Assert.That(current.InternalField == null, Is.EqualTo(shouldResetInternal));
Assert.That(current.ProtectedInternalField == null, Is.EqualTo(shouldResetProtectedInternal));
}
public MyPropertyAttribute(VisibilityOptions visibility)
{
this.visibility = visibility;
}
/// <summary>
/// Resets state of specified instance fields/auto-properties to their defaults (null for classes, default value for structs).
/// If given instance field implements IDisposable interface, it would be disposed before reset.
///
/// It is possible to control which fields/auto-properties would be cleaned with hierarchy, visibility and reset options.
/// </summary>
/// <typeparam name="T">Target type.</typeparam>
/// <param name="target">Target instance to be reset.</param>
/// <param name="hierarchyOptions">Options controlling which members would be cleaned, depending on which type in type hierarchy they belongs to.</param>
/// <param name="visibilityOptions">Options controlling which members would be cleaned, depending on their visibility flags.</param>
/// <param name="resetOptions">An additional reset options.</param>
public static void ResetInstance <T>(T target, HierarchyOptions hierarchyOptions = HierarchyOptions.All, VisibilityOptions visibilityOptions = VisibilityOptions.All, ResetOptions resetOptions = ResetOptions.None) where T : class
{
if (target == null)
{
return;
}
Debug.WriteLine(string.Format("Resetting instance of: {0}", target.GetType()));
foreach (var field in GetAllFields(target, typeof(T), hierarchyOptions)
.Where(f => IsApplicable(f, visibilityOptions, resetOptions)))
{
if ((resetOptions & ResetOptions.DoNotDispose) == 0)
{
DisposeField(field, target);
}
ResetField(field, target);
}
}
public VisibilityAttribute(VisibilityOptions visibility)
{
VisibilityOnPage = visibility;
}
