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// Copyright 2008-2009 Louis DeJardin - http://whereslou.com
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
using System.Linq;
using Spark.Parser.Markup;
namespace Spark.Compiler.NodeVisitors
{
public class OnceAttributeVisitor : SpecialAttributeVisitorBase
{
public OnceAttributeVisitor(VisitorContext context)
: base(context)
{
}
protected override bool IsSpecialAttribute(ElementNode element, AttributeNode attr)
{
var eltName = NameUtility.GetName(element.Name);
if (eltName == "test" || eltName == "if" || eltName == "elseif" || eltName == "else")
return false;
if (Context.Namespaces == NamespacesType.Unqualified)
return attr.Name == "once";
if (attr.Namespace != Constants.Namespace)
return false;
var nqName = NameUtility.GetName(attr.Name);
return nqName == "once";
}
protected override SpecialNode CreateWrappingNode(AttributeNode attr, ElementNode node)
{
var fakeAttribute = new AttributeNode("once", attr.Nodes);
var fakeElement = new ElementNode("test", new[] { fakeAttribute }, false) { OriginalNode = attr };
return new SpecialNode(fakeElement);
}
}
}