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 extensions {
  21 class Extension;
  22 }
  23
  24 namespace blink {
  25 struct WebURLError;
  26 }
  27
  28 namespace error_page {
  29 struct ErrorPageParams;
  30 }
  31
  32 class LocalizedError {
  33  public:
  34   // Fills |error_strings| with values to be used to build an error page used
  35   // on HTTP errors, like 404 or connection reset.
  36   static void GetStrings(int error_code,
  37                          const std::string& error_domain,
  38                          const GURL& failed_url,
  39                          bool is_post,
  40                          bool stale_copy_in_cache,
  41                          const std::string& locale,
  42                          const std::string& accept_languages,
  43                          scoped_ptr<error_page::ErrorPageParams> params,
  44                          base::DictionaryValue* strings);
  45
  46   // Returns a description of the encountered error.
  47   static base::string16 GetErrorDetails(const blink::WebURLError& error,
  48                                         bool is_post);
  49
  50   // Returns true if an error page exists for the specified parameters.
  51   static bool HasStrings(const std::string& error_domain, int error_code);
  52
  53 #if defined(ENABLE_EXTENSIONS)
  54   // Fills |error_strings| with values to be used to build an error page used
  55   // on HTTP errors, like 404 or connection reset, but using information from
  56   // the associated |app| in order to make the error page look like it's more
  57   // part of the app.
  58   static void GetAppErrorStrings(const GURL& display_url,
  59                                  const extensions::Extension* app,
  60                                  const std::string& locale,
  61                                  base::DictionaryValue* error_strings);
  62 #endif
  63
  64   static const char kHttpErrorDomain[];
  65
  66  private:
  67   DISALLOW_IMPLICIT_CONSTRUCTORS(LocalizedError);
  68 };
  69
  70 #endif  // CHROME_COMMON_LOCALIZED_ERROR_H_