chrome/service/service_process_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_SERVICE_SERVICE_PROCESS_PREFS_H_
   6 #define CHROME_SERVICE_SERVICE_PROCESS_PREFS_H_
   7
   8 #include <string>
   9
  10 #include "base/prefs/json_pref_store.h"
  11
  12 namespace base {
  13 class DictionaryValue;
  14 class ListValue;
  15 class SequencedTaskRunner;
  16 }
  17
  18 // Manages persistent preferences for the service process. This is basically a
  19 // thin wrapper around JsonPrefStore for more comfortable use.
  20 class ServiceProcessPrefs {
  21  public:
  22   // |sequenced_task_runner| must be a shutdown-blocking task runner.
  23   ServiceProcessPrefs(const base::FilePath& pref_filename,
  24                       base::SequencedTaskRunner* task_runner);
  25   ~ServiceProcessPrefs();
  26
  27   // Read preferences from the backing file.
  28   void ReadPrefs();
  29
  30   // Write the data to the backing file.
  31   void WritePrefs();
  32
  33   // Returns a string preference for |key|.
  34   std::string GetString(const std::string& key,
  35                         const std::string& default_value) const;
  36
  37   // Set a string |value| for |key|.
  38   void SetString(const std::string& key, const std::string& value);
  39
  40   // Returns a boolean preference for |key|.
  41   bool GetBoolean(const std::string& key, bool default_value) const;
  42
  43   // Set a boolean |value| for |key|.
  44   void SetBoolean(const std::string& key, bool value);
  45
  46   // Returns an int preference for |key|.
  47   int GetInt(const std::string& key, int default_value) const;
  48
  49   // Set an int |value| for |key|.
  50   void SetInt(const std::string& key, int value);
  51
  52   // Returns a dictionary preference for |key|.
  53   const base::DictionaryValue* GetDictionary(const std::string& key) const;
  54
  55   // Returns a list for |key|.
  56   const base::ListValue* GetList(const std::string& key) const;
  57
  58   // Set a |value| for |key|.
  59   void SetValue(const std::string& key, scoped_ptr<base::Value> value);
  60
  61   // Removes the pref specified by |key|.
  62   void RemovePref(const std::string& key);
  63
  64  private:
  65   scoped_refptr<JsonPrefStore> prefs_;
  66
  67   DISALLOW_COPY_AND_ASSIGN(ServiceProcessPrefs);
  68 };
  69
  70 #endif  // CHROME_SERVICE_SERVICE_PROCESS_PREFS_H_