1// Copyright (c) 2012 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4// 5// This file defines utility functions for fetching localized resources. 6 7#include "chrome/installer/util/l10n_string_util.h" 8 9#include <atlbase.h> 10 11#include <algorithm> 12 13#include "base/logging.h" 14#include "base/memory/scoped_ptr.h" 15#include "base/strings/string_util.h" 16#include "base/strings/stringprintf.h" 17#include "chrome/installer/util/language_selector.h" 18 19namespace { 20 21const installer::LanguageSelector& GetLanguageSelector() { 22 static const installer::LanguageSelector instance; 23 24 return instance; 25} 26 27installer::TranslationDelegate* g_translation_delegate = NULL; 28 29} // namespace 30 31namespace installer { 32 33TranslationDelegate::~TranslationDelegate() { 34} 35 36void SetTranslationDelegate(TranslationDelegate* delegate) { 37 g_translation_delegate = delegate; 38} 39 40std::wstring GetLocalizedString(int base_message_id) { 41 if (g_translation_delegate) 42 return g_translation_delegate->GetLocalizedString(base_message_id); 43 44 std::wstring localized_string; 45 46 int message_id = base_message_id + GetLanguageSelector().offset(); 47 const ATLSTRINGRESOURCEIMAGE* image = AtlGetStringResourceImage( 48 _AtlBaseModule.GetModuleInstance(), message_id); 49 if (image) { 50 localized_string = std::wstring(image->achString, image->nLength); 51 } else { 52 NOTREACHED() << "Unable to find resource id " << message_id; 53 } 54 55 return localized_string; 56} 57 58// Here we generate the url spec with the Microsoft res:// scheme which is 59// explained here : http://support.microsoft.com/kb/220830 60std::wstring GetLocalizedEulaResource() { 61 wchar_t full_exe_path[MAX_PATH]; 62 int len = ::GetModuleFileName(NULL, full_exe_path, MAX_PATH); 63 if (len == 0 || len == MAX_PATH) 64 return L""; 65 66 // The resource names are more or less the upcased language names. 67 std::wstring language(GetLanguageSelector().selected_translation()); 68 std::replace(language.begin(), language.end(), L'-', L'_'); 69 StringToUpperASCII(&language); 70 71 std::wstring resource(L"IDR_OEMPG_"); 72 resource.append(language).append(L".HTML"); 73 74 // Fall back on "en" if we don't have a resource for this language. 75 if (NULL == FindResource(NULL, resource.c_str(), RT_HTML)) 76 resource = L"IDR_OEMPG_EN.HTML"; 77 78 // Spaces and DOS paths must be url encoded. 79 std::wstring url_path = 80 base::StringPrintf(L"res://%ls/#23/%ls", full_exe_path, resource.c_str()); 81 82 // The cast is safe because url_path has limited length 83 // (see the definition of full_exe_path and resource). 84 DCHECK(kuint32max > (url_path.size() * 3)); 85 DWORD count = static_cast<DWORD>(url_path.size() * 3); 86 scoped_ptr<wchar_t[]> url_canon(new wchar_t[count]); 87 HRESULT hr = ::UrlCanonicalizeW(url_path.c_str(), url_canon.get(), 88 &count, URL_ESCAPE_UNSAFE); 89 if (SUCCEEDED(hr)) 90 return std::wstring(url_canon.get()); 91 return url_path; 92} 93 94std::wstring GetCurrentTranslation() { 95 return GetLanguageSelector().selected_translation(); 96} 97 98} // namespace installer 99