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