chrome/browser/pdf/pdf_extension_util.cc

   1 // Copyright 2015 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/browser/pdf/pdf_extension_util.h"
   6
   7 #include "base/strings/string_util.h"
   8 #include "chrome/common/chrome_content_client.h"
   9 #include "chrome/common/chrome_switches.h"
  10 #include "chrome/grit/browser_resources.h"
  11 #include "ui/base/resource/resource_bundle.h"
  12
  13 namespace pdf_extension_util {
  14
  15 namespace {
  16
  17 // Tags in the manifest to be replaced.
  18 const char kNameTag[] = "<NAME>";
  19 const char kIndexTag[] = "<INDEX>";
  20
  21 // The index html pages to load for the material and non-material version of
  22 // the viewer.
  23 const char kRegularIndex[] = "index.html";
  24 const char kMaterialIndex[] = "index-material.html";
  25
  26 }  // namespace
  27
  28 // These should match the keys for the Chrome and Chromium PDF Viewer entries in
  29 // chrome/browser/resources/plugin_metadata/plugins_*.json.
  30 #if defined(GOOGLE_CHROME_BUILD)
  31 const char kPdfResourceIdentifier[] = "google-chrome-pdf";
  32 #else
  33 const char kPdfResourceIdentifier[] = "chromium-pdf";
  34 #endif
  35
  36 std::string GetManifest() {
  37   std::string manifest_contents =
  38       ResourceBundle::GetSharedInstance().GetRawDataResource(
  39           IDR_PDF_MANIFEST).as_string();
  40   DCHECK(manifest_contents.find(kNameTag) != std::string::npos);
  41   ReplaceFirstSubstringAfterOffset(
  42       &manifest_contents, 0, kNameTag, ChromeContentClient::kPDFPluginName);
  43
  44   DCHECK(manifest_contents.find(kIndexTag) != std::string::npos);
  45   std::string index = switches::PdfMaterialUIEnabled() ?
  46       kMaterialIndex : kRegularIndex;
  47   ReplaceSubstringsAfterOffset(&manifest_contents, 0, kIndexTag, index);
  48   return manifest_contents;
  49 }
  50
  51 }  // namespace pdf_extension_util