chromeos/settings/cros_settings_provider.cc

   1 // Copyright 2013 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 #include "chromeos/settings/cros_settings_provider.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/logging.h"
   9 #include "base/strings/string_util.h"
  10 #include "base/values.h"
  11 #include "chromeos/chromeos_switches.h"
  12
  13 namespace chromeos {
  14
  15 CrosSettingsProvider::CrosSettingsProvider(
  16     const NotifyObserversCallback& notify_cb)
  17   : notify_cb_(notify_cb) {
  18 }
  19
  20 CrosSettingsProvider::~CrosSettingsProvider() {
  21 }
  22
  23 void CrosSettingsProvider::Set(const std::string& path,
  24                                const base::Value& value) {
  25   // We don't allow changing any of the cros settings without prefix
  26   // "cros.session." in the guest mode.
  27   // It should not reach here from UI in the guest mode, but just in case.
  28   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
  29           switches::kGuestSession) &&
  30       !::StartsWithASCII(path, "cros.session.", true)) {
  31     LOG(ERROR) << "Ignoring the guest request to change: " << path;
  32     return;
  33   }
  34   DoSet(path, value);
  35 }
  36
  37 void CrosSettingsProvider::NotifyObservers(const std::string& path) {
  38   if (!notify_cb_.is_null())
  39     notify_cb_.Run(path);
  40 }
  41
  42 void CrosSettingsProvider::SetNotifyObserversCallback(
  43     const NotifyObserversCallback& notify_cb) {
  44   notify_cb_ = notify_cb;
  45 }
  46
  47 };  // namespace chromeos