chrome/browser/metrics/signin_status_metrics_provider_chromeos.cc

   1 // Copyright 2014 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/metrics/signin_status_metrics_provider_chromeos.h"
   6
   7 #include "chrome/browser/browser_process.h"
   8 #include "chrome/browser/profiles/profile_manager.h"
   9 #include "chromeos/login/login_state.h"
  10
  11 namespace {
  12
  13 // Returns true if user is signed in to a non-guest profile.
  14 bool IsSignedInNonGuest() {
  15   ProfileManager* profile_manager = g_browser_process->profile_manager();
  16   if (profile_manager &&
  17       profile_manager->IsLoggedIn() &&
  18       chromeos::LoginState::Get() &&
  19       !chromeos::LoginState::Get()->IsGuestSessionUser()) {
  20     return true;
  21   }
  22   return false;
  23 }
  24
  25 } // namespace
  26
  27 SigninStatusMetricsProviderChromeOS::SigninStatusMetricsProviderChromeOS() {
  28   SetCurrentSigninStatus();
  29 }
  30
  31 SigninStatusMetricsProviderChromeOS::~SigninStatusMetricsProviderChromeOS() {
  32 }
  33
  34 void SigninStatusMetricsProviderChromeOS::ProvideGeneralMetrics(
  35     metrics::ChromeUserMetricsExtension* uma_proto) {
  36   // Compare the current logged-in status with the recorded one and compute
  37   // sign-in status that should be reported.
  38   RecordSigninStatusHistogram(ComputeSigninStatusToUpload(
  39       signin_status(), IsSignedInNonGuest()));
  40   // After reporting the sign-in status for previous UMA session, start fresh
  41   // again regardless what was the status before.
  42   ResetSigninStatus();
  43   SetCurrentSigninStatus();
  44 }
  45
  46 void SigninStatusMetricsProviderChromeOS::SetCurrentSigninStatus() {
  47   if (IsSignedInNonGuest())
  48     SetSigninStatus(ALL_PROFILES_SIGNED_IN);
  49   SetSigninStatus(ALL_PROFILES_NOT_SIGNED_IN);
  50 }
  51
  52 SigninStatusMetricsProviderBase::SigninStatus
  53 SigninStatusMetricsProviderChromeOS::ComputeSigninStatusToUpload(
  54     SigninStatusMetricsProviderBase::SigninStatus recorded_status,
  55     bool logged_in_now) {
  56   if ((recorded_status == ALL_PROFILES_SIGNED_IN && logged_in_now) ||
  57       (recorded_status == ALL_PROFILES_NOT_SIGNED_IN && !logged_in_now)) {
  58     // If the status hasn't changed since we last recorded, report as it is.
  59     return recorded_status;
  60   } else if (recorded_status == ALL_PROFILES_NOT_SIGNED_IN && logged_in_now) {
  61     // It possible that the browser goes from not signed-in to signed-in (i.e.
  62     // user performed a login action through the login manager.)
  63     return MIXED_SIGNIN_STATUS;
  64   } else {
  65     // There should not be other possibilities, for example the browser on
  66     // ChromeOS can not go from signed-in to not signed-in. Record it as an
  67     // error.
  68     return ERROR_GETTING_SIGNIN_STATUS;
  69   }
  70 }