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//------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
namespace System.ServiceModel.XamlIntegration
{
using System;
using System.Collections.Generic;
using System.ServiceModel.Dispatcher;
using System.Windows.Markup;
[ContentProperty("Namespaces")]
public class XPathMessageContextMarkupExtension : MarkupExtension
{
static List<string> implicitPrefixes;
Dictionary<string, string> namespaces;
static XPathMessageContextMarkupExtension()
{
implicitPrefixes = new List<string>();
foreach (string prefix in XPathMessageContext.defaultNamespaces.Keys)
{
implicitPrefixes.Add(prefix);
}
implicitPrefixes.Add("");
implicitPrefixes.Add("xml");
implicitPrefixes.Add("xmlns");
}
public XPathMessageContextMarkupExtension()
{
this.namespaces = new Dictionary<string, string>();
}
public XPathMessageContextMarkupExtension(XPathMessageContext context)
: this()
{
foreach (string prefix in context)
{
if (!implicitPrefixes.Contains(prefix))
{
this.namespaces.Add(prefix, context.LookupNamespace(prefix));
}
}
}
public Dictionary<string, string> Namespaces
{
get { return this.namespaces; }
}
public override object ProvideValue(IServiceProvider serviceProvider)
{
XPathMessageContext context = new XPathMessageContext();
foreach (KeyValuePair<string, string> ns in this.namespaces)
{
context.AddNamespace(ns.Key, ns.Value);
}
return context;
}
}
}
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