chrome/common/localized_error.h

   1 // Copyright (c) 2011 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 #ifndef CHROME_COMMON_LOCALIZED_ERROR_H_
   6 #define CHROME_COMMON_LOCALIZED_ERROR_H_
   7
   8 #include <string>
   9
  10 #include "base/basictypes.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "base/strings/string16.h"
  13 #include "url/gurl.h"
  14
  15 namespace base {
  16 class DictionaryValue;
  17 class ListValue;
  18 }
  19
  20 namespace blink {
  21 struct WebURLError;
  22 }
  23
  24 namespace error_page {
  25 struct ErrorPageParams;
  26 }
  27
  28 class LocalizedError {
  29  public:
  30   // Fills |error_strings| with values to be used to build an error page used
  31   // on HTTP errors, like 404 or connection reset.
  32   static void GetStrings(int error_code,
  33                          const std::string& error_domain,
  34                          const GURL& failed_url,
  35                          bool is_post,
  36                          bool stale_copy_in_cache,
  37                          bool can_show_network_diagnostics_dialog,
  38                          const std::string& locale,
  39                          const std::string& accept_languages,
  40                          scoped_ptr<error_page::ErrorPageParams> params,
  41                          base::DictionaryValue* strings);
  42
  43   // Returns a description of the encountered error.
  44   static base::string16 GetErrorDetails(const blink::WebURLError& error,
  45                                         bool is_post);
  46
  47   // Returns true if an error page exists for the specified parameters.
  48   static bool HasStrings(const std::string& error_domain, int error_code);
  49
  50   static const char kHttpErrorDomain[];
  51
  52  private:
  53   // Sets up the Google Cached Copy button experiment if part of the
  54   // field trial. This promotes the Google cached copy suggestion from under
  55   // the details section to a blue button. Also experiments with the
  56   // button label.
  57   static void EnableGoogleCachedCopyButtonExperiment(
  58       base::ListValue* suggestions,
  59       base::DictionaryValue* error_strings);
  60
  61   DISALLOW_IMPLICIT_CONSTRUCTORS(LocalizedError);
  62 };
  63
  64 #endif  // CHROME_COMMON_LOCALIZED_ERROR_H_