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// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
namespace WixToolset.Extensibility
{
using System.Collections.Generic;
using WixToolset.Data;
using WixToolset.Data.Bind;
using WixToolset.Data.Tuples;
using WixToolset.Data.WindowsInstaller;
using WixToolset.Extensibility.Services;
/// <summary>
/// Base class for creating a preprocessor extension.
/// </summary>
public abstract class BaseWindowsInstallerBackendExtension : IWindowsInstallerBackendExtension
{
/// <summary>
/// Context for use by the extension.
/// </summary>
protected IBindContext Context { get; private set; }
/// <summary>
/// Backend helper for use by the extension.
/// </summary>
protected IWindowsInstallerBackendHelper BackendHelper { get; private set; }
/// <summary>
/// Optional table definitions to automatically map to tuples.
/// </summary>
protected virtual TableDefinition[] TableDefinitionsForTuples { get; }
public virtual void PreBackendBind(IBindContext context)
{
this.Context = context;
this.BackendHelper = context.ServiceProvider.GetService<IWindowsInstallerBackendHelper>();
}
public virtual ResolvedCabinet ResolveCabinet(string cabinetPath, IEnumerable<BindFileWithPath> files)
{
return null;
}
public virtual string ResolveMedia(MediaTuple mediaRow, string mediaLayoutDirectory, string layoutDirectory)
{
return null;
}
public virtual bool TryAddTupleToOutput(IntermediateTuple tuple, Output output)
{
if (this.TableDefinitionsForTuples != null)
{
return this.BackendHelper.TryAddTupleToOutputMatchingTableDefinitions(tuple, output, this.TableDefinitionsForTuples);
}
return false;
}
public virtual void PostBackendBind(BindResult result, Pdb pdb)
{
}
}
}
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