public object ProvideValue(MarkupExtensionContext markupExtensionContext)
{
var type = markupExtensionContext.TypeRepository.GetByType(typeof(ResourceDictionary));
var resourceDictionary = (ResourceDictionary)markupExtensionContext.TopDownValueContext.GetLastInstance(type);
return(resourceDictionary[ResourceKey]);
}
/// <summary>
/// Если str начинается с одинарной открывающей фигурной скобки, то метод обрабатывает его
/// как вызов расширения разметки, и возвращает результат, или выбрасывает исключение,
/// если при парсинге или выполнении возникли ошибки. Если же str начинается c комбинации
/// {}, то остаток строки возвращается просто строкой.
/// </summary>
private Object processText(String text,
String currentProperty, object currentObject, object dataContext)
{
if (String.IsNullOrEmpty(text))
{
return(String.Empty);
}
if (text[0] != '{')
{
// interpret whole text as string
return(text);
}
else if (text.Length > 1 && text[1] == '}')
{
// interpret the rest as string
return(text.Length > 2 ? text.Substring(2) : String.Empty);
}
else
{
MarkupExtensionsParser markupExtensionsParser = new MarkupExtensionsParser(
new MarkupExtensionsResolver(this), text);
MarkupExtensionContext context = new MarkupExtensionContext(
this, text, currentProperty, currentObject, dataContext);
object providedValue = markupExtensionsParser.ProcessMarkupExtension(context);
if (providedValue is IFixupToken)
{
fixupTokens.Add(( FixupToken )providedValue);
// Null means no value will be assigned to target property
return(null);
}
return(providedValue);
}
}
public override object ProvideValue(MarkupExtensionContext extensionContext)
{
return(new RelativeSource
{
Mode = Mode,
});
}
public override object ProvideValue(MarkupExtensionContext markupExtensionContext)
{
var typeRepository = markupExtensionContext.TypeRepository;
var typeAndMember = GetTypeAndMember(Identifier);
var prefixAndType = GetPrefixAndType(typeAndMember.Item1);
var xamlType = typeRepository.GetByPrefix(prefixAndType.Item1, prefixAndType.Item2);
return(GetValue(xamlType.UnderlyingType, typeAndMember.Item2));
}
public override object ProvideValue(MarkupExtensionContext extensionContext)
{
return(new Binding
{
Converter = Converter,
Mode = Mode,
SourcePropertyPath = Path,
});
}
public override object ProvideValue(MarkupExtensionContext markupExtensionContext)
{
if (Type != null)
{
return(Type);
}
return(ResolveFromString(TypeName, markupExtensionContext.ValueContext.TypeRepository));
}
public override object ProvideValue(MarkupExtensionContext extensionContext)
{
return(new Binding
{
Converter = Converter,
ElementName = ElementName,
Mode = Mode,
Path = Path,
});
}
private MarkupExtensionContext GetExtensionContext()
{
var inflationContext = new MarkupExtensionContext
{
TargetObject = Previous.Instance,
TargetProperty = Previous.Instance.GetType().GetRuntimeProperty(Previous.Member.Name),
ValueContext = ValueContext,
};
return(inflationContext);
}
public override object ProvideValue(MarkupExtensionContext extensionContext)
{
return(new Data.Binding
{
Converter = Converter,
Mode = Mode,
Priority = BindingPriority.TemplatedParent,
RelativeSource = new RelativeSource(RelativeSourceMode.TemplatedParent),
SourcePropertyPath = Path,
});
}
public override object ProvideValue(MarkupExtensionContext extensionContext)
{
return(new Binding
{
Converter = Converter,
ElementName = ElementName,
Mode = Mode,
RelativeSource = new RelativeSource(RelativeSourceMode.TemplatedParent),
Path = Path,
Priority = Priority,
});
}
private MarkupExtensionContext GetExtensionContext()
{
var inflationContext = new MarkupExtensionContext
{
TargetObject = Previous.Instance,
TargetProperty = Previous.Instance.GetType().GetRuntimeProperty(Previous.XamlMember.Name),
TypeRepository = ValuePipeline.TypeRepository,
TopDownValueContext = topDownValueContext
};
return(inflationContext);
}
public override object ProvideValue(MarkupExtensionContext extensionContext)
{
return(new Binding
{
Converter = Converter,
ConverterParameter = ConverterParameter,
ElementName = ElementName,
FallbackValue = FallbackValue,
Mode = Mode,
Path = Path,
Priority = Priority,
});
}
public override object ProvideValue(MarkupExtensionContext extensionContext)
{
var target = extensionContext.TargetObject as Control;
var targetProperty = extensionContext.TargetProperty;
var targetPropertyName = targetProperty.Name;
var perspexProperty = target.GetRegisteredProperties().First(property => property.Name == targetPropertyName);
return(new XamlBindingDefinition
(
target,
perspexProperty,
new PropertyPath(Path),
Mode == BindingMode.Default ? BindingMode.OneWay : Mode
));
}
public override object ProvideValue(MarkupExtensionContext markupExtensionContext)
{
if (Number != 0)
{
return(Number);
}
if (Option != null)
{
return(Option);
}
if (Property != null)
{
return(Property);
}
return("Text From Markup Extension");
}
public override object ProvideValue(MarkupExtensionContext markupExtensionContext)
{
if (Number != 0)
{
return Number;
}
if (Option != null)
{
return Option;
}
if (Property != null)
{
return Property;
}
return "Text From Markup Extension";
}
private void processFixupTokens( )
{
// Выполнить поиск fixup tokens, желания которых удовлетворены,
// и вызвать расширения разметки для них снова
List <FixupToken> tokens = new List <FixupToken>(fixupTokens);
fixupTokens.Clear( );
foreach (FixupToken token in tokens)
{
if (token.Ids.All(id => objectsById.ContainsKey(id)))
{
MarkupExtensionsParser markupExtensionsParser = new MarkupExtensionsParser(
new MarkupExtensionsResolver(this), token.Expression);
MarkupExtensionContext context = new MarkupExtensionContext(
this, token.Expression, token.PropertyName, token.Object, token.DataContext);
object providedValue = markupExtensionsParser.ProcessMarkupExtension(context);
if (providedValue is IFixupToken)
{
fixupTokens.Add(( FixupToken )providedValue);
}
else
{
// assign providedValue to property of object
if (null != providedValue)
{
PropertyInfo propertyInfo = token.Object.GetType( ).GetProperty(
token.PropertyName);
object convertedValue = ConvertValueIfNeed(providedValue.GetType(),
propertyInfo.PropertyType,
providedValue);
//propertyInfo.SetValue(token.Object, convertedValue, null);
propertyInfo.GetSetMethod().Invoke(token.Object, new [] { convertedValue });
}
}
}
else
{
fixupTokens.Add(token);
}
}
}
public override object ProvideValue(MarkupExtensionContext extensionContext)
{
return(new StyleResourceBinding(this.Name));
}
private MarkupExtensionContext GetExtensionContext()
{
var inflationContext = new MarkupExtensionContext
{
TargetObject = Previous.Instance,
TargetProperty = Previous.Instance.GetType().GetRuntimeProperty(Previous.Member.Name),
ValueContext = ValueContext,
};
return inflationContext;
}
public object ProvideValue(MarkupExtensionContext markupExtensionContext)
{
return null;
}
public object ProvideValue(MarkupExtensionContext markupExtensionContext)
{
return(null);
}
public override object ProvideValue(MarkupExtensionContext markupExtensionContext) => null;
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;
}
public object ProvideValue(MarkupExtensionContext markupExtensionContext)
{
var type = markupExtensionContext.ValueContext.TypeRepository.GetByType(typeof (ResourceDictionary));
var resourceDictionary = (ResourceDictionary) markupExtensionContext.ValueContext.TopDownValueContext.GetLastInstance(type);
return resourceDictionary[ResourceKey];
}
public override object ProvideValue(MarkupExtensionContext markupExtensionContext)
{
return "Text From Markup Extension";
}
public object ProvideValue(MarkupExtensionContext markupExtensionContext)
{
var provideValue = ProvideValue(new ServiceLocator(markupExtensionContext));
return provideValue;
}
public override object ProvideValue(MarkupExtensionContext markupExtensionContext)
{
return Number;
}
public abstract object ProvideValue(MarkupExtensionContext markupExtensionContext);
public object ProvideValue(MarkupExtensionContext markupExtensionContext)
{
var provideValue = base.ProvideValue(new ServiceLocator(markupExtensionContext));
return(provideValue);
}
public override object ProvideValue(MarkupExtensionContext extensionContext)
{
return(new XamlBindingDefinition(Path, Mode));
}
public abstract object ProvideValue(MarkupExtensionContext markupExtensionContext);
public WpfServiceLocator(MarkupExtensionContext markupExtensionContext)
{
this.markupExtensionContext = markupExtensionContext;
}
private MarkupExtensionContext GetExtensionContext()
{
var inflationContext = new MarkupExtensionContext
{
TargetObject = Previous.Instance,
TargetProperty = Previous.Instance.GetType().GetRuntimeProperty(Previous.XamlMember.Name),
TypeRepository = ValuePipeline.TypeRepository,
TopDownValueContext = topDownValueContext
};
return inflationContext;
}
public ServiceLocator(MarkupExtensionContext markupExtensionContext)
{
this.markupExtensionContext = markupExtensionContext;
}
public override object ProvideValue(MarkupExtensionContext markupExtensionContext)
{
return(point);
}
public object ProvideValue(MarkupExtensionContext markupExtensionContext)
{
var type = markupExtensionContext.TypeRepository.GetXamlType(typeof (ResourceDictionary));
var resourceDictionary = (ResourceDictionary) markupExtensionContext.TopDownMemberValueContext.GetMemberValue(type);
return resourceDictionary[ResourceKey];
}
public override object ProvideValue(MarkupExtensionContext markupExtensionContext)
{
return("Text From Markup Extension");
}
public object ProvideValue(MarkupExtensionContext markupExtensionContext)
{
return ProvideValue(new WpfServiceLocator(markupExtensionContext));
}
