chrome/browser/chromeos/settings/system_settings_provider.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_CHROMEOS_SETTINGS_SYSTEM_SETTINGS_PROVIDER_H_
   6 #define CHROME_BROWSER_CHROMEOS_SETTINGS_SYSTEM_SETTINGS_PROVIDER_H_
   7
   8 #include <string>
   9
  10 #include "base/callback.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "chromeos/settings/cros_settings_provider.h"
  13 #include "chromeos/settings/timezone_settings.h"
  14 #include "third_party/icu/source/i18n/unicode/timezone.h"
  15
  16 namespace base {
  17 class StringValue;
  18 }
  19
  20 namespace chromeos {
  21
  22 class SystemSettingsProvider : public CrosSettingsProvider,
  23                                public system::TimezoneSettings::Observer {
  24  public:
  25   explicit SystemSettingsProvider(const NotifyObserversCallback& notify_cb);
  26   virtual ~SystemSettingsProvider();
  27
  28   // CrosSettingsProvider implementation.
  29   virtual const base::Value* Get(const std::string& path) const override;
  30   virtual TrustedStatus PrepareTrustedValues(
  31       const base::Closure& callback) override;
  32   virtual bool HandlesSetting(const std::string& path) const override;
  33
  34   // TimezoneSettings::Observer implementation.
  35   virtual void TimezoneChanged(const icu::TimeZone& timezone) override;
  36
  37  private:
  38   // CrosSettingsProvider implementation.
  39   virtual void DoSet(const std::string& path,
  40                      const base::Value& in_value) override;
  41
  42   scoped_ptr<base::StringValue> timezone_value_;
  43
  44   DISALLOW_COPY_AND_ASSIGN(SystemSettingsProvider);
  45 };
  46
  47 }  // namespace chromeos
  48
  49 #endif  // CHROME_BROWSER_CHROMEOS_SETTINGS_SYSTEM_SETTINGS_PROVIDER_H_