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// Copyright 2016 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 "components/ntp_snippets/remote/remote_suggestions_status_service.h"
#include <string>
#include "components/ntp_snippets/features.h"
#include "components/ntp_snippets/pref_names.h"
#include "components/prefs/pref_registry_simple.h"
#include "components/prefs/pref_service.h"
#include "components/signin/core/browser/signin_manager.h"
#include "components/variations/variations_associated_data.h"
namespace ntp_snippets {
namespace {
const char kFetchingRequiresSignin[] = "fetching_requires_signin";
const char kFetchingRequiresSigninEnabled[] = "true";
const char kFetchingRequiresSigninDisabled[] = "false";
} // namespace
RemoteSuggestionsStatusService::RemoteSuggestionsStatusService(
SigninManagerBase* signin_manager,
PrefService* pref_service)
: status_(RemoteSuggestionsStatus::EXPLICITLY_DISABLED),
require_signin_(false),
signin_manager_(signin_manager),
pref_service_(pref_service) {
std::string param_value_str = variations::GetVariationParamValueByFeature(
kArticleSuggestionsFeature, kFetchingRequiresSignin);
if (param_value_str == kFetchingRequiresSigninEnabled) {
require_signin_ = true;
} else if (!param_value_str.empty() &&
param_value_str != kFetchingRequiresSigninDisabled) {
DLOG(WARNING) << "Unknow value for the variations parameter "
<< kFetchingRequiresSignin << ": " << param_value_str;
}
}
RemoteSuggestionsStatusService::~RemoteSuggestionsStatusService() = default;
// static
void RemoteSuggestionsStatusService::RegisterProfilePrefs(
PrefRegistrySimple* registry) {
registry->RegisterBooleanPref(prefs::kEnableSnippets, true);
}
void RemoteSuggestionsStatusService::Init(
const StatusChangeCallback& callback) {
DCHECK(status_change_callback_.is_null());
status_change_callback_ = callback;
// Notify about the current state before registering the observer, to make
// sure we don't get a double notification due to an undefined start state.
RemoteSuggestionsStatus old_status = status_;
status_ = GetStatusFromDeps();
status_change_callback_.Run(old_status, status_);
pref_change_registrar_.Init(pref_service_);
pref_change_registrar_.Add(
prefs::kEnableSnippets,
base::Bind(&RemoteSuggestionsStatusService::OnSnippetsEnabledChanged,
base::Unretained(this)));
}
void RemoteSuggestionsStatusService::OnSnippetsEnabledChanged() {
OnStateChanged(GetStatusFromDeps());
}
void RemoteSuggestionsStatusService::OnStateChanged(
RemoteSuggestionsStatus new_status) {
if (new_status == status_) {
return;
}
status_change_callback_.Run(status_, new_status);
status_ = new_status;
}
bool RemoteSuggestionsStatusService::IsSignedIn() const {
// TODO(dgn): remove the SigninManager dependency. It should be possible to
// replace it by passing the new state via OnSignInStateChanged().
return signin_manager_ && signin_manager_->IsAuthenticated();
}
void RemoteSuggestionsStatusService::OnSignInStateChanged() {
OnStateChanged(GetStatusFromDeps());
}
RemoteSuggestionsStatus RemoteSuggestionsStatusService::GetStatusFromDeps()
const {
if (!pref_service_->GetBoolean(prefs::kEnableSnippets)) {
DVLOG(1) << "[GetStatusFromDeps] Disabled via pref";
return RemoteSuggestionsStatus::EXPLICITLY_DISABLED;
}
if (require_signin_ && !IsSignedIn()) {
DVLOG(1) << "[GetStatusFromDeps] Signed out and disabled due to this.";
return RemoteSuggestionsStatus::SIGNED_OUT_AND_DISABLED;
}
DVLOG(1) << "[GetStatusFromDeps] Enabled, signed "
<< (IsSignedIn() ? "in" : "out");
return IsSignedIn() ? RemoteSuggestionsStatus::ENABLED_AND_SIGNED_IN
: RemoteSuggestionsStatus::ENABLED_AND_SIGNED_OUT;
}
} // namespace ntp_snippets
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