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//------------------------------------------------------------------------------
// <copyright file="RootBuilder.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
/*
* Implements the root builder
*
* Copyright (c) 1998 Microsoft Corporation
*/
namespace System.Web.UI {
using System.Runtime.InteropServices;
using System;
using System.Collections;
using System.IO;
using System.Reflection;
using System.Web;
using System.Web.Util;
/// <internalonly/>
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public class RootBuilder : TemplateBuilder {
private MainTagNameToTypeMapper _typeMapper;
// Contains a mapping of all objects to their associated builders
private IDictionary _builtObjects;
public RootBuilder() {
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public RootBuilder(TemplateParser parser) {
}
public IDictionary BuiltObjects {
get {
// Store any objects created by this control builder
// so we can properly persist items
if (_builtObjects == null) {
_builtObjects = new Hashtable(ReferenceKeyComparer.Default);
}
return _builtObjects;
}
}
/// <summary>
/// The method gets called when the CodeDom tree is fully built. The way it is used is by first overriding
/// ProcessGeneratedCode to keep track of the CodeCompileUnit, and to then have the ability to modify
/// the CodeCompileUnit in this method
/// </summary>
protected internal virtual void OnCodeGenerationComplete() {
}
internal void SetTypeMapper(MainTagNameToTypeMapper typeMapper) {
_typeMapper = typeMapper;
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public override Type GetChildControlType(string tagName,
IDictionary attribs) {
// Is there a type to handle this control
Type type = _typeMapper.GetControlType(tagName, attribs,
true /*fAllowHtmlTags*/);
return type;
}
internal override void PrepareNoCompilePageSupport() {
base.PrepareNoCompilePageSupport();
// This is needed to break any connection with the TemplateParser, allowing it
// to be fully collected when the parsing is complete
_typeMapper = null;
}
private class ReferenceKeyComparer : IComparer, IEqualityComparer {
internal static readonly ReferenceKeyComparer Default = new ReferenceKeyComparer();
bool IEqualityComparer.Equals(object x, object y) {
return Object.ReferenceEquals(x, y);
}
int IEqualityComparer.GetHashCode(object obj) {
return obj.GetHashCode();
}
int IComparer.Compare(object x, object y) {
if (Object.ReferenceEquals(x, y)) {
return 0;
}
if (x == null) {
return -1;
}
if (y == null) {
return 1;
}
return 1;
}
}
}
}
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