chrome/browser/extensions/extension_scoped_prefs.h

   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 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_SCOPED_PREFS_H_
   6 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_SCOPED_PREFS_H_
   7
   8 namespace extensions {
   9
  10 class ExtensionScopedPrefs {
  11  public:
  12   ExtensionScopedPrefs() {}
  13   ~ExtensionScopedPrefs() {}
  14
  15   // Sets the pref |key| for extension |id| to |value|.
  16   virtual void UpdateExtensionPref(const std::string& id,
  17                                    const std::string& key,
  18                                    base::Value* value) = 0;
  19
  20   // Deletes the pref dictionary for extension |id|.
  21   virtual void DeleteExtensionPrefs(const std::string& id) = 0;
  22
  23   // Reads a boolean pref |pref_key| from extension with id |extension_id|.
  24   virtual bool ReadPrefAsBoolean(const std::string& extension_id,
  25                                  const std::string& pref_key,
  26                                  bool* out_value) const = 0;
  27
  28   // Reads an integer pref |pref_key| from extension with id |extension_id|.
  29   virtual bool ReadPrefAsInteger(const std::string& extension_id,
  30                                  const std::string& pref_key,
  31                                  int* out_value) const = 0;
  32
  33   // Reads a string pref |pref_key| from extension with id |extension_id|.
  34   virtual bool ReadPrefAsString(const std::string& extension_id,
  35                                 const std::string& pref_key,
  36                                 std::string* out_value) const = 0;
  37
  38   // Reads a list pref |pref_key| from extension with id |extension_id|.
  39   virtual bool ReadPrefAsList(const std::string& extension_id,
  40                               const std::string& pref_key,
  41                               const base::ListValue** out_value) const = 0;
  42
  43   // Reads a dictionary pref |pref_key| from extension with id |extension_id|.
  44   virtual bool ReadPrefAsDictionary(
  45       const std::string& extension_id,
  46       const std::string& pref_key,
  47       const base::DictionaryValue** out_value) const = 0;
  48
  49   // Returns true if the prefs contain an entry for an extension with id
  50   // |extension_id|.
  51   virtual bool HasPrefForExtension(const std::string& extension_id) const = 0;
  52 };
  53
  54 }  // namespace extensions
  55
  56 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_SCOPED_PREFS_H_