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/strings/string16.h"
  12
  13 class GURL;
  14
  15 namespace base {
  16 class DictionaryValue;
  17 }
  18
  19 namespace extensions {
  20 class Extension;
  21 }
  22
  23 namespace blink {
  24 struct WebURLError;
  25 }
  26
  27 class LocalizedError {
  28  public:
  29   // Fills |error_strings| with values to be used to build an error page used
  30   // on HTTP errors, like 404 or connection reset.
  31   static void GetStrings(int error_code,
  32                          const std::string& error_domain,
  33                          const GURL& failed_url,
  34                          bool is_post,
  35                          bool stale_copy_in_cache,
  36                          const std::string& locale,
  37                          const std::string& accept_languages,
  38                          base::DictionaryValue* strings);
  39
  40   // Returns a description of the encountered error.
  41   static base::string16 GetErrorDetails(const blink::WebURLError& error,
  42                                         bool is_post);
  43
  44   // Returns true if an error page exists for the specified parameters.
  45   static bool HasStrings(const std::string& error_domain, int error_code);
  46
  47   // Fills |error_strings| with values to be used to build an error page used
  48   // on HTTP errors, like 404 or connection reset, but using information from
  49   // the associated |app| in order to make the error page look like it's more
  50   // part of the app.
  51   static void GetAppErrorStrings(const GURL& display_url,
  52                                  const extensions::Extension* app,
  53                                  base::DictionaryValue* error_strings);
  54
  55   static const char kHttpErrorDomain[];
  56
  57  private:
  58   DISALLOW_IMPLICIT_CONSTRUCTORS(LocalizedError);
  59 };
  60
  61 #endif  // CHROME_COMMON_LOCALIZED_ERROR_H_