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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 System.Linq;
using WixToolset.Data;
using WixToolset.Data.Symbols;
using WixToolset.Data.WindowsInstaller;
using WixToolset.Extensibility.Data;
using WixToolset.Extensibility.Services;
/// <summary>
/// Base class for creating a preprocessor extension.
/// </summary>
public abstract class BaseWindowsInstallerBackendBinderExtension : IWindowsInstallerBackendBinderExtension
{
/// <summary>
/// Context for use by the extension.
/// </summary>
protected IBindContext Context { get; private set; }
/// <summary>
/// Messaging for use by the extension.
/// </summary>
protected IMessaging Messaging { get; private set; }
/// <summary>
/// Backend helper for use by the extension.
/// </summary>
protected IWindowsInstallerBackendHelper BackendHelper { get; private set; }
/// <summary>
/// Optional table definitions.
/// </summary>
public virtual IEnumerable<TableDefinition> TableDefinitions => Enumerable.Empty<TableDefinition>();
/// <summary>
/// Creates a resolved cabinet result.
/// </summary>
protected IResolvedCabinet CreateResolvedCabinet() => this.Context.ServiceProvider.GetService<IResolvedCabinet>();
/// <summary>
/// See <see cref="IWindowsInstallerBackendBinderExtension.PreBackendBind(IBindContext)"/>
/// </summary>
public virtual void PreBackendBind(IBindContext context)
{
this.Context = context;
this.Messaging = context.ServiceProvider.GetService<IMessaging>();
this.BackendHelper = context.ServiceProvider.GetService<IWindowsInstallerBackendHelper>();
}
/// <summary>
/// See <see cref="IWindowsInstallerBackendBinderExtension.PreBackendBind(IBindContext)"/>
/// </summary>
public virtual IResolvedCabinet ResolveCabinet(string cabinetPath, IEnumerable<IBindFileWithPath> files) => null;
/// <summary>
/// See <see cref="IWindowsInstallerBackendBinderExtension.PreBackendBind(IBindContext)"/>
/// </summary>
public virtual string ResolveMedia(MediaSymbol mediaRow, string mediaLayoutDirectory, string layoutDirectory) => null;
/// <summary>
/// See <see cref="IWindowsInstallerBackendBinderExtension.PreBackendBind(IBindContext)"/>
/// </summary>
public virtual bool TryAddSymbolToOutput(IntermediateSection section, IntermediateSymbol symbol, WindowsInstallerData output, TableDefinitionCollection tableDefinitions)
{
if (this.TableDefinitions.Any(t => t.SymbolDefinition == symbol.Definition))
{
return this.BackendHelper.TryAddSymbolToOutputMatchingTableDefinitions(section, symbol, output, tableDefinitions);
}
return false;
}
/// <summary>
/// See <see cref="IWindowsInstallerBackendBinderExtension.PreBackendBind(IBindContext)"/>
/// </summary>
public virtual void PostBackendBind(IBindResult result)
{
}
}
}
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