chrome/common/net/net_resource_provider.cc

   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 #include "chrome/common/net/net_resource_provider.h"
   6
   7 #include <string>
   8
   9 #include "base/i18n/rtl.h"
  10 #include "base/strings/string_piece.h"
  11 #include "base/values.h"
  12 #include "grit/chromium_strings.h"
  13 #include "grit/generated_resources.h"
  14 #include "grit/net_resources.h"
  15 #include "ui/base/l10n/l10n_util.h"
  16 #include "ui/base/layout.h"
  17 #include "ui/base/resource/resource_bundle.h"
  18 #include "ui/base/webui/jstemplate_builder.h"
  19
  20 namespace {
  21
  22 // The net module doesn't have access to this HTML or the strings that need to
  23 // be localized.  The Chrome locale will never change while we're running, so
  24 // it's safe to have a static string that we always return a pointer into.
  25 // This allows us to have the ResourceProvider return a pointer into the actual
  26 // resource (via a StringPiece), instead of always copying resources.
  27 struct LazyDirectoryListerCacher {
  28   LazyDirectoryListerCacher() {
  29     base::DictionaryValue value;
  30     value.SetString("header",
  31                     l10n_util::GetStringUTF16(IDS_DIRECTORY_LISTING_HEADER));
  32     value.SetString("parentDirText",
  33                     l10n_util::GetStringUTF16(IDS_DIRECTORY_LISTING_PARENT));
  34     value.SetString("headerName",
  35                     l10n_util::GetStringUTF16(IDS_DIRECTORY_LISTING_NAME));
  36     value.SetString("headerSize",
  37                     l10n_util::GetStringUTF16(IDS_DIRECTORY_LISTING_SIZE));
  38     value.SetString("headerDateModified",
  39         l10n_util::GetStringUTF16(IDS_DIRECTORY_LISTING_DATE_MODIFIED));
  40     value.SetString("listingParsingErrorBoxText",
  41         l10n_util::GetStringFUTF16(IDS_DIRECTORY_LISTING_PARSING_ERROR_BOX_TEXT,
  42             l10n_util::GetStringUTF16(IDS_PRODUCT_NAME)));
  43     value.SetString("textdirection", base::i18n::IsRTL() ? "rtl" : "ltr");
  44     html_data = webui::GetI18nTemplateHtml(
  45         ResourceBundle::GetSharedInstance().GetRawDataResource(
  46             IDR_DIR_HEADER_HTML),
  47         &value);
  48   }
  49
  50   std::string html_data;
  51 };
  52
  53 }  // namespace
  54
  55 namespace chrome_common_net {
  56
  57 base::StringPiece NetResourceProvider(int key) {
  58   CR_DEFINE_STATIC_LOCAL(LazyDirectoryListerCacher, lazy_dir_lister, ());
  59
  60   if (IDR_DIR_HEADER_HTML == key)
  61     return base::StringPiece(lazy_dir_lister.html_data);
  62
  63   return ResourceBundle::GetSharedInstance().GetRawDataResource(key);
  64 }
  65
  66 }  // namespace chrome_common_net