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      1 // Copyright (c) 2011 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 "chrome/browser/ui/webui/options/chromeos/stats_options_handler.h"
      6 
      7 #include "base/basictypes.h"
      8 #include "base/callback.h"
      9 #include "base/utf_string_conversions.h"
     10 #include "base/values.h"
     11 #include "chrome/browser/chromeos/cros_settings_names.h"
     12 #include "chrome/browser/chromeos/login/user_manager.h"
     13 #include "chrome/browser/chromeos/metrics_cros_settings_provider.h"
     14 #include "chrome/browser/metrics/user_metrics.h"
     15 
     16 namespace chromeos {
     17 
     18 StatsOptionsHandler::StatsOptionsHandler()
     19     : CrosOptionsPageUIHandler(new MetricsCrosSettingsProvider()) {
     20 }
     21 
     22 // OptionsPageUIHandler implementation.
     23 void StatsOptionsHandler::GetLocalizedValues(
     24     DictionaryValue* localized_strings) {
     25 }
     26 void StatsOptionsHandler::Initialize() {
     27   SetupMetricsReportingCheckbox(false);
     28 }
     29 
     30 // WebUIMessageHandler implementation.
     31 void StatsOptionsHandler::RegisterMessages() {
     32   web_ui_->RegisterMessageCallback(
     33       "metricsReportingCheckboxAction",
     34       NewCallback(this, &StatsOptionsHandler::HandleMetricsReportingCheckbox));
     35 }
     36 
     37 MetricsCrosSettingsProvider* StatsOptionsHandler::provider() const {
     38   return static_cast<MetricsCrosSettingsProvider*>(settings_provider_.get());
     39 }
     40 
     41 void StatsOptionsHandler::HandleMetricsReportingCheckbox(
     42     const ListValue* args) {
     43 #if defined(GOOGLE_CHROME_BUILD)
     44   const std::string checked_str = UTF16ToUTF8(ExtractStringValue(args));
     45   const bool enabled = (checked_str == "true");
     46   UserMetricsRecordAction(
     47       enabled ?
     48       UserMetricsAction("Options_MetricsReportingCheckbox_Enable") :
     49       UserMetricsAction("Options_MetricsReportingCheckbox_Disable"));
     50   const bool is_enabled = MetricsCrosSettingsProvider::GetMetricsStatus();
     51   SetupMetricsReportingCheckbox(enabled == is_enabled);
     52 #endif
     53 }
     54 
     55 void StatsOptionsHandler::SetupMetricsReportingCheckbox(bool user_changed) {
     56 #if defined(GOOGLE_CHROME_BUILD)
     57   FundamentalValue checked(MetricsCrosSettingsProvider::GetMetricsStatus());
     58   FundamentalValue disabled(!UserManager::Get()->current_user_is_owner());
     59   FundamentalValue user_has_changed(user_changed);
     60   web_ui_->CallJavascriptFunction(
     61       "options.AdvancedOptions.SetMetricsReportingCheckboxState", checked,
     62       disabled, user_has_changed);
     63 #endif
     64 }
     65 
     66 }  // namespace chromeos
     67