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// Copyright 2018 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/ui/webui/welcome/nux_helper.h"
#include <string>
#include "base/feature_list.h"
#include "base/metrics/field_trial.h"
#include "base/metrics/field_trial_params.h"
#include "base/values.h"
#include "build/build_config.h"
#include "chrome/browser/metrics/chrome_metrics_service_accessor.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/webui/welcome/nux/constants.h"
#include "chrome/common/pref_names.h"
#include "components/prefs/pref_service.h"
#if defined(OS_MACOSX)
#include "base/enterprise_util.h"
#endif // defined(OS_MACOSX)
namespace nux {
// This feature flag is used to force the feature to be turned on for non-win
// and non-branded builds, like with tests or development on other platforms.
const base::Feature kNuxOnboardingForceEnabled = {
"NuxOnboardingForceEnabled", base::FEATURE_DISABLED_BY_DEFAULT};
// The value of these FeatureParam values should be a comma-delimited list
// of element names whitelisted in the MODULES_WHITELIST list, defined in
// chrome/browser/resources/welcome/onboarding_welcome/welcome_app.js
const base::FeatureParam<std::string> kNuxOnboardingForceEnabledNewUserModules =
{&kNuxOnboardingForceEnabled, "new-user-modules",
"nux-google-apps,nux-email,nux-set-as-default,signin-view"};
const base::FeatureParam<std::string>
kNuxOnboardingForceEnabledReturningUserModules = {
&kNuxOnboardingForceEnabled, "returning-user-modules",
"nux-set-as-default"};
// TODO(hcarmona): remove this flag and all code behind it.
const base::FeatureParam<bool> kNuxOnboardingForceEnabledShowEmailInterstitial =
{&kNuxOnboardingForceEnabled, "show-email-interstitial", true};
// Must match study name in configs.
const char kNuxOnboardingStudyName[] = "NaviOnboarding";
std::string GetOnboardingGroup() {
// We need to use |base::GetFieldTrialParamValue| instead of
// |base::FeatureParam| because our control group needs a custom value for
// this param.
return base::GetFieldTrialParamValue(kNuxOnboardingStudyName,
"onboarding-group");
}
bool IsNuxOnboardingEnabled(Profile* profile) {
if (base::FeatureList::IsEnabled(nux::kNuxOnboardingForceEnabled)) {
return true;
}
#if defined(GOOGLE_CHROME_BUILD)
#if defined(OS_MACOSX)
return !base::IsMachineExternallyManaged();
#endif // defined(OS_MACOSX)
#if defined(OS_WIN)
// To avoid diluting data collection, existing users should not be assigned
// an onboarding group. So, |prefs::kNaviOnboardGroup| is used to
// short-circuit the feature checks below.
PrefService* prefs = profile->GetPrefs();
if (!prefs) {
return false;
}
std::string onboard_group = prefs->GetString(prefs::kNaviOnboardGroup);
if (onboard_group.empty()) {
return false;
}
// User will be tied to their original onboarding group, even after
// experiment ends.
ChromeMetricsServiceAccessor::RegisterSyntheticFieldTrial(
"NaviOnboardingSynthetic", onboard_group);
if (base::FeatureList::IsEnabled(nux::kNuxOnboardingFeature)) {
return true;
}
#endif // defined(OS_WIN)
#endif // defined(GOOGLE_CHROME_BUILD)
return false;
}
base::DictionaryValue GetNuxOnboardingModules(Profile* profile) {
// This function should not be called when nux onboarding feature is not on.
DCHECK(nux::IsNuxOnboardingEnabled(profile));
base::DictionaryValue modules;
if (base::FeatureList::IsEnabled(nux::kNuxOnboardingForceEnabled)) {
modules.SetString("new-user",
kNuxOnboardingForceEnabledNewUserModules.Get());
modules.SetString("returning-user",
kNuxOnboardingForceEnabledReturningUserModules.Get());
modules.SetBoolean("show-email-interstitial",
kNuxOnboardingForceEnabledShowEmailInterstitial.Get());
} else { // This means |nux::kNuxOnboardingFeature| is enabled.
modules.SetString("new-user", kNuxOnboardingNewUserModules.Get());
modules.SetString("returning-user",
kNuxOnboardingReturningUserModules.Get());
modules.SetBoolean("show-email-interstitial",
kNuxOnboardingShowEmailInterstitial.Get());
}
return modules;
}
} // namespace nux
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