private bool TryCreateCompatibleInstanceForCurrentMember(StateBag stateBag, object instanceToConvert, Type destinationType)
{
var convertedValue = ConvertValueIfNecessary(instanceToConvert, destinationType);
stateBag.Current.Instance = convertedValue;
return true;
}
internal void PrepareNewInstanceBecauseWeWantToConfigureIt(StateBag bag)
{
var newInstance = typeOperations.Create(bag.Current.Type);
bag.Current.Instance = newInstance;
if (bag.LiveDepth > 1 && !(newInstance is IMarkupExtension) && bag.LiveDepth > 1)
{
CheckAssignmentToParentStart(bag);
}
}
private MarkupExtensionContext GetExtensionContext(StateBag stateBag)
{
var inflationContext = new MarkupExtensionContext
{
TargetObject = stateBag.Parent.Instance,
TargetProperty = stateBag.Parent.Instance.GetType().GetRuntimeProperty(stateBag.Parent.Property.Name),
TypeRepository = this.XamlTypeRepository,
};
return inflationContext;
}
private void ApplyPropertyValue(StateBag bag, XamlMember parentProperty, object value, bool onParent)
{
var instance = onParent ? bag.Parent.Instance : bag.Current.Instance;
var isSetExternally = OnSetValue(instance, parentProperty, value);
if (!isSetExternally)
{
TypeOperations.SetValue(instance, parentProperty, value);
}
}
private void AssignValueFromMarkupExtension(StateBag stateBag)
{
var markupExtension = (IMarkupExtension)stateBag.Current.Instance;
var extensionContext = GetExtensionContext(stateBag);
var providedValue = markupExtension.ProvideValue(extensionContext);
stateBag.Current.Type = typeRepository.GetXamlType(providedValue.GetType());
stateBag.Current.Instance = providedValue;
AssignCurrentInstanceToParent(Bag);
}
private void AssignCurrentInstanceToParent(StateBag bag)
{
var parentProperty = bag.Parent.Property;
var currentInstance = bag.Current.Instance;
var parentPropertyType = parentProperty.Type;
if (IsAssignmentBeingMadeToContainer(parentProperty, parentPropertyType))
{
AssignInstanceToParentCollection(bag.Parent.Collection, bag.Current.Instance);
}
else if (bag.Parent.Instance != null)
{
if (!bag.Current.IsObjectFromMember)
{
ApplyPropertyValue(bag, parentProperty, currentInstance, true);
}
}
}
private void CheckAssignmentToParentStart(StateBag bag)
{
var parentPropertyIsItemsDictionary = bag.Parent.Property == CoreTypes.Items && bag.Parent.Type.IsDictionary;
if (!parentPropertyIsItemsDictionary)
{
bag.Current.WasAssignedAtCreation = true;
AssignCurrentInstanceToParent(bag);
}
else
{
bag.Current.WasAssignedAtCreation = false;
}
}
internal void AssignCurrentInstanceToParent(StateBag bag)
{
var parentProperty = (MutableXamlMember)bag.Parent.Property;
var currentInstance = bag.Current.Instance;
var parentPropertyType = parentProperty.XamlType;
if (IsAssignmentBeingMadeToContainer(parentProperty, parentPropertyType))
{
AssignCurrentInstanceToParentCollection();
}
else if (bag.Parent.Instance != null)
{
if (!bag.Current.IsCollectionHoldingObject)
{
ApplyPropertyValue(bag, parentProperty, currentInstance, true);
}
}
}
internal void PrepareNewInstanceBecauseWeWantToConfigureIt(StateBag bag)
{
var parameters = bag.Current.ConstructorArguments != null ? bag.Current.ConstructorArguments.ToArray() : null;
var newInstance = typeOperations.Create(bag.Current.Type, parameters);
// Resets the constructor arguments
bag.Current.ConstructorArguments = null;
bag.Current.Instance = newInstance;
if (bag.LiveDepth > 1 && !(newInstance is IMarkupExtension) && bag.LiveDepth > 1)
{
CheckAssignmentToParentStart(bag);
}
}
