settingmanager.h

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#ifndef ION_BASE_SETTINGMANAGER_H_
#define ION_BASE_SETTINGMANAGER_H_

#include <map>
#include <string>

#include "base/macros.h"
#include "ion/base/setting.h"
#include "ion/base/sharedptr.h"

namespace ion {
namespace base {

class ION_API SettingManager {
 public:
  typedef std::map<std::string, SettingBase*> SettingMap;

  ~SettingManager();

  static SettingBase* GetSetting(const std::string& name);
  static const SettingMap& GetAllSettings();

  static void RegisterSetting(SettingBase* setting);

  static void UnregisterSetting(SettingBase* setting);

  static void RegisterGroupListener(const std::string& group,
                                    const std::string& key,
                                    const SettingBase::Listener& listener);

  static void EnableGroupListener(const std::string& group,
                                  const std::string& key,
                                  bool enable);

  static void UnregisterGroupListener(const std::string& group,
                                      const std::string& key);

 private:
  class SettingData;
  SharedPtr<SettingData> data_;

  SettingManager();

  static SettingManager* GetInstance();

  DISALLOW_COPY_AND_ASSIGN(SettingManager);
};

}  // namespace base
}  // namespace ion

#endif  // ION_BASE_SETTINGMANAGER_H_