| // Copyright (c) 2012 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. |
| |
| #include "chrome/browser/metrics/metrics_reporting_state.h" |
| |
| #include "base/callback.h" |
| #include "base/metrics/histogram.h" |
| #include "base/prefs/pref_service.h" |
| #include "chrome/browser/browser_process.h" |
| #include "chrome/browser/metrics/chrome_metrics_service_accessor.h" |
| #include "chrome/common/pref_names.h" |
| #include "chrome/installer/util/google_update_settings.h" |
| #include "components/metrics/metrics_service.h" |
| #include "content/public/browser/browser_thread.h" |
| |
| namespace { |
| |
| enum MetricsReportingChangeHistogramValue { |
| METRICS_REPORTING_ERROR, |
| METRICS_REPORTING_DISABLED, |
| METRICS_REPORTING_ENABLED, |
| METRICS_REPORTING_MAX |
| }; |
| |
| void RecordMetricsReportingHistogramValue( |
| MetricsReportingChangeHistogramValue value) { |
| UMA_HISTOGRAM_ENUMERATION( |
| "UMA.MetricsReporting.Toggle", value, METRICS_REPORTING_MAX); |
| } |
| |
| // Tries to set metrics reporting status to |enabled| and returns whatever is |
| // the result of the update. |
| bool SetGoogleUpdateSettings(bool enabled) { |
| GoogleUpdateSettings::SetCollectStatsConsent(enabled); |
| bool updated_pref = GoogleUpdateSettings::GetCollectStatsConsent(); |
| if (enabled != updated_pref) |
| DVLOG(1) << "Unable to set metrics reporting status to " << enabled; |
| |
| return updated_pref; |
| } |
| |
| // Does the necessary changes for MetricsReportingEnabled changes which needs |
| // to be done in the main thread. |
| // As arguments this function gets: |
| // |to_update_pref| which indicates what the desired update should be, |
| // |callback_fn| is the callback function to be called in the end |
| // |updated_pref| is the result of attempted update. |
| // Update considers to be successful if |to_update_pref| and |updated_pref| are |
| // the same. |
| void SetMetricsReporting(bool to_update_pref, |
| const OnMetricsReportingCallbackType& callback_fn, |
| bool updated_pref) { |
| metrics::MetricsService* metrics = g_browser_process->metrics_service(); |
| if (metrics) { |
| if (updated_pref) |
| metrics->Start(); |
| else |
| metrics->Stop(); |
| } |
| #if !defined(OS_CHROMEOS) && !defined(OS_ANDROID) |
| g_browser_process->local_state()->SetBoolean( |
| prefs::kMetricsReportingEnabled, updated_pref); |
| #endif |
| if (to_update_pref == updated_pref) { |
| RecordMetricsReportingHistogramValue(updated_pref ? |
| METRICS_REPORTING_ENABLED : METRICS_REPORTING_DISABLED); |
| } else { |
| RecordMetricsReportingHistogramValue(METRICS_REPORTING_ERROR); |
| } |
| if (!callback_fn.is_null()) |
| callback_fn.Run(updated_pref); |
| } |
| |
| } // namespace |
| |
| void InitiateMetricsReportingChange( |
| bool enabled, |
| const OnMetricsReportingCallbackType& callback_fn) { |
| #if !defined(OS_CHROMEOS) && !defined(OS_ANDROID) |
| if (!IsMetricsReportingUserChangable()) { |
| if (!callback_fn.is_null()) { |
| callback_fn.Run( |
| ChromeMetricsServiceAccessor::IsMetricsReportingEnabled()); |
| } |
| return; |
| } |
| #endif |
| // Posts to FILE thread as SetGoogleUpdateSettings does IO operations. |
| content::BrowserThread::PostTaskAndReplyWithResult( |
| content::BrowserThread::FILE, |
| FROM_HERE, |
| base::Bind(&SetGoogleUpdateSettings, enabled), |
| base::Bind(&SetMetricsReporting, enabled, callback_fn)); |
| } |
| |
| bool IsMetricsReportingUserChangable() { |
| const PrefService* pref_service = g_browser_process->local_state(); |
| const PrefService::Preference* pref = |
| pref_service->FindPreference(prefs::kMetricsReportingEnabled); |
| return pref && !pref->IsManaged(); |
| } |