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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// Chromecast-specific configurations retrieved from and stored into a given
// configuration file.
#ifndef CHROMECAST_COMMON_CHROMECAST_CONFIG_H_
#define CHROMECAST_COMMON_CHROMECAST_CONFIG_H_
#include <string>
#include "base/files/file_path.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/prefs/pref_service.h"
#include "base/threading/sequenced_worker_pool.h"
#include "base/threading/thread_checker.h"
class PrefRegistrySimple;
namespace chromecast {
// Manages configuration for Chromecast via PrefService.
// It uses JsonPrefStore internally and/so the format of config file is same to
// that of JsonPrefStore.
// It is NOT thread-safe; all functions must be run on the same thread as
// the object is created.
class ChromecastConfig {
public:
// Creates new singleton instance of ChromecastConfig.
static void Create(PrefRegistrySimple* registry);
// Returns the singleton instance of ChromecastConfig.
static ChromecastConfig* GetInstance();
// Saves configs into configuration file.
void Save() const;
// Returns string value for |key|, if present.
const std::string GetValue(const std::string& key) const;
// Returns integer value for |key|, if present.
const int GetIntValue(const std::string& key) const;
// Sets new string value for |key|.
void SetValue(const std::string& key, const std::string& value) const;
// Sets new int value for |key|.
void SetIntValue(const std::string& key, int value) const;
// Whether or not a value has been set for |key|.
bool HasValue(const std::string& key) const;
scoped_refptr<base::SequencedWorkerPool> worker_pool() const {
return worker_pool_;
}
PrefService* pref_service() const { return pref_service_.get(); }
private:
ChromecastConfig();
~ChromecastConfig();
// Loads configs from config file. Returns true if successful.
bool Load(PrefRegistrySimple* registry);
// Registers any needed preferences for the current platform.
void RegisterPlatformPrefs(PrefRegistrySimple* registry);
// Global singleton instance.
static ChromecastConfig* g_instance_;
const base::FilePath config_path_;
const scoped_refptr<base::SequencedWorkerPool> worker_pool_;
scoped_ptr<PrefService> pref_service_;
base::ThreadChecker thread_checker_;
DISALLOW_COPY_AND_ASSIGN(ChromecastConfig);
};
} // namespace chromecast
#endif // CHROMECAST_COMMON_CHROMECAST_CONFIG_H_
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