Beispiel #1
0
        public IXamlAstNode Transform(AstTransformationContext context, IXamlAstNode node)
        {
            if (!(node is XamlAstXamlPropertyValueNode propertyValueNode))
            {
                return(node);
            }

            if (!(propertyValueNode.Property is XamlAstClrProperty clrProperty))
            {
                return(node);
            }

            IEnumerable <IXamlCustomAttribute> attributes = propertyValueNode.Property.GetClrProperty().CustomAttributes;

            if (propertyValueNode.Property is XamlAstClrProperty referenceNode &&
                referenceNode.Getter != null)
            {
                attributes = attributes.Concat(referenceNode.Getter.CustomAttributes);
            }

            if (attributes.All(attribute => attribute.Type.FullName != "Avalonia.Controls.ResolveByNameAttribute"))
            {
                return(node);
            }

            if (propertyValueNode.Values.Count != 1 || !(propertyValueNode.Values.First() is XamlAstTextNode))
            {
                return(node);
            }

            var newNode = new XamlAstObjectNode(
                propertyValueNode.Values[0],
                new XamlAstClrTypeReference(propertyValueNode.Values[0],
                                            context.GetAvaloniaTypes().ResolveByNameExtension, true))
            {
                Arguments = new List <IXamlAstValueNode> {
                    propertyValueNode.Values[0]
                }
            };

            if (XamlTransformHelpers.TryConvertMarkupExtension(context, newNode, out var extensionNode))
            {
                propertyValueNode.Values[0] = extensionNode;
            }

            return(node);
        }
        public IXamlAstNode Transform(AstTransformationContext context, IXamlAstNode node)
        {
            if (node is IXamlAstValueNode vn)
            {
                if (context.ParentNodes().FirstOrDefault() is XamlMarkupExtensionNode)
                {
                    return(node);
                }

                if (XamlTransformHelpers.TryConvertMarkupExtension(context, vn, out var rv))
                {
                    return(rv);
                }
            }

            return(node);
        }