aspnetcore/src/Microsoft.AspNet.Mvc.Locali.../ViewLocalizer.cs

113 lines
3.8 KiB
C#

// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
using System;
using System.Collections.Generic;
using System.Globalization;
using Microsoft.AspNet.Mvc.Rendering;
using Microsoft.AspNet.Mvc.ViewFeatures.Internal;
using Microsoft.Extensions.Localization;
using Microsoft.Extensions.PlatformAbstractions;
namespace Microsoft.AspNet.Mvc.Localization
{
/// <summary>
/// A <see cref="HtmlLocalizer"/> that provides localized strings for views.
/// </summary>
public class ViewLocalizer : IViewLocalizer, ICanHasViewContext
{
private readonly IHtmlLocalizerFactory _localizerFactory;
private readonly string _applicationName;
private IHtmlLocalizer _localizer;
/// <summary>
/// Creates a new <see cref="ViewLocalizer"/>.
/// </summary>
/// <param name="localizerFactory">The <see cref="IHtmlLocalizerFactory"/>.</param>
/// <param name="applicationEnvironment">The <see cref="IApplicationEnvironment"/>.</param>
public ViewLocalizer(
IHtmlLocalizerFactory localizerFactory,
IApplicationEnvironment applicationEnvironment)
{
if (localizerFactory == null)
{
throw new ArgumentNullException(nameof(localizerFactory));
}
if (applicationEnvironment == null)
{
throw new ArgumentNullException(nameof(applicationEnvironment));
}
_applicationName = applicationEnvironment.ApplicationName;
_localizerFactory = localizerFactory;
}
/// <inheritdoc />
public virtual LocalizedString this[string key]
{
get
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
return _localizer[key];
}
}
/// <inheritdoc />
public virtual LocalizedString this[string key, params object[] arguments]
{
get
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
return _localizer[key, arguments];
}
}
/// <inheritdoc />
public LocalizedString GetString(string name) => _localizer.GetString(name);
/// <inheritdoc />
public LocalizedString GetString(string name, params object[] values) =>
_localizer.GetString(name, values);
/// <inheritdoc />
public LocalizedHtmlString Html(string key) => _localizer.Html(key);
/// <inheritdoc />
public LocalizedHtmlString Html(string key, params object[] arguments) =>
_localizer.Html(key, arguments);
/// <inheritdoc />
public IStringLocalizer WithCulture(CultureInfo culture) => _localizer.WithCulture(culture);
/// <inheritdoc />
IHtmlLocalizer IHtmlLocalizer.WithCulture(CultureInfo culture) => _localizer.WithCulture(culture);
public void Contextualize(ViewContext viewContext)
{
if (viewContext == null)
{
throw new ArgumentNullException(nameof(viewContext));
}
var baseName = viewContext.View.Path.Replace('/', '.').Replace('\\', '.');
if (baseName.StartsWith("."))
{
baseName = baseName.Substring(1);
}
_localizer = _localizerFactory.Create(baseName, _applicationName);
}
/// <inheritdoc />
public IEnumerable<LocalizedString> GetAllStrings(bool includeAncestorCultures) =>
_localizer.GetAllStrings(includeAncestorCultures);
}
}