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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Collections.Generic;
namespace System.Web.Mvc
{
public class TemplateInfo
{
private string _htmlFieldPrefix;
private object _formattedModelValue;
private HashSet<object> _visitedObjects;
public object FormattedModelValue
{
get { return _formattedModelValue ?? String.Empty; }
set { _formattedModelValue = value; }
}
public string HtmlFieldPrefix
{
get { return _htmlFieldPrefix ?? String.Empty; }
set { _htmlFieldPrefix = value; }
}
public int TemplateDepth
{
get { return VisitedObjects.Count; }
}
// DDB #224750 - Keep a collection of visited objects to prevent infinite recursion
internal HashSet<object> VisitedObjects
{
get
{
if (_visitedObjects == null)
{
_visitedObjects = new HashSet<object>();
}
return _visitedObjects;
}
set { _visitedObjects = value; }
}
public string GetFullHtmlFieldId(string partialFieldName)
{
return HtmlHelper.GenerateIdFromName(GetFullHtmlFieldName(partialFieldName));
}
public string GetFullHtmlFieldName(string partialFieldName)
{
// This uses "combine and trim" because either or both of these values might be empty
return (HtmlFieldPrefix + "." + (partialFieldName ?? String.Empty)).Trim('.');
}
public bool Visited(ModelMetadata metadata)
{
return VisitedObjects.Contains(metadata.Model ?? metadata.ModelType);
}
}
}
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