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// Copyright (c) 2010 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.
#ifndef CHROME_BROWSER_CHROMEOS_USER_CROS_SETTINGS_PROVIDER_H_
#define CHROME_BROWSER_CHROMEOS_USER_CROS_SETTINGS_PROVIDER_H_
#pragma once
#include <string>
#include "base/basictypes.h"
#include "chrome/browser/chromeos/cros_settings_provider.h"
#include "chrome/browser/chromeos/login/signed_settings_helper.h"
class ListValue;
class PrefService;
class Task;
namespace chromeos {
// CrosSettingsProvider implementation that works with SignedSettings.
// TODO(nkostylev): Rename this class to indicate that it is
// SignedSettings specific.
class UserCrosSettingsProvider : public CrosSettingsProvider {
public:
UserCrosSettingsProvider();
virtual ~UserCrosSettingsProvider() {}
// Registers cached users settings in preferences.
static void RegisterPrefs(PrefService* local_state);
// Methods to use when trusted (signature verified) values are required.
// Return true if subsequent call to corresponding cached_* getter shall
// return trusted value.
// Return false if trusted values are unavailable at a moment.
// In latter case passed task will be posted when ready.
bool RequestTrustedAllowGuest(Task* callback);
bool RequestTrustedAllowNewUser(Task* callback);
bool RequestTrustedDataRoamingEnabled(Task* callback);
bool RequestTrustedShowUsersOnSignin(Task* callback);
bool RequestTrustedOwner(Task* callback);
// Reloads values from device settings.
void Reload();
// Helper functions to access cached settings.
static bool cached_allow_guest();
static bool cached_allow_new_user();
static bool cached_data_roaming_enabled();
static bool cached_show_users_on_signin();
static const ListValue* cached_whitelist();
static std::string cached_owner();
// Returns true if given email is in user whitelist.
// Note this function is for display purpose only and should use
// CheckWhitelist op for the real whitelist check.
static bool IsEmailInCachedWhitelist(const std::string& email);
// CrosSettingsProvider implementation.
virtual bool Get(const std::string& path, Value** out_value) const;
virtual bool HandlesSetting(const std::string& path);
void WhitelistUser(const std::string& email);
void UnwhitelistUser(const std::string& email);
// Updates cached value of the owner.
static void UpdateCachedOwner(const std::string& email);
private:
// CrosSettingsProvider implementation.
virtual void DoSet(const std::string& path, Value* value);
DISALLOW_COPY_AND_ASSIGN(UserCrosSettingsProvider);
};
} // namespace chromeos
#endif // CHROME_BROWSER_CHROMEOS_USER_CROS_SETTINGS_PROVIDER_H_
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