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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/privacy_sandbox/notice/notice_model.h"
#include "chrome/browser/privacy_sandbox/notice/notice_storage.h"
namespace privacy_sandbox {
using notice::mojom::PrivacySandboxNoticeEvent;
// NoticeApi class definitions.
NoticeApi::NoticeApi() = default;
NoticeApi::~NoticeApi() = default;
void NoticeApi::SetFulfilledBy(Notice* notice) {
linked_notices_.emplace_back(notice);
}
NoticeApi* NoticeApi::SetEligibilityCallback(
base::RepeatingCallback<EligibilityLevel()> callback) {
eligibility_callback_ = std::move(callback);
return this;
}
NoticeApi* NoticeApi::SetResultCallback(
base::OnceCallback<void(bool)> callback) {
result_callback_ = std::move(callback);
return this;
}
NoticeApi* NoticeApi::SetFeature(const base::Feature* feature) {
feature_ = feature;
return this;
}
bool NoticeApi::IsEnabled() {
return feature_ && base::FeatureList::IsEnabled(*feature_);
}
EligibilityLevel NoticeApi::GetEligibilityLevel() {
return !eligibility_callback_.is_null() ? eligibility_callback_.Run()
: EligibilityLevel::kNotEligible;
}
void NoticeApi::UpdateResult(bool enabled) {
if (!result_callback_.is_null()) {
std::move(result_callback_).Run(enabled);
}
}
bool NoticeApi::IsFulfilled() {
EligibilityLevel eligibility = GetEligibilityLevel();
for (Notice* notice : linked_notices()) {
if (eligibility == EligibilityLevel::kEligibleConsent &&
notice->GetNoticeType() == NoticeType::kNotice) {
continue;
}
if (notice->was_fulfilled()) {
return true;
};
}
return false;
}
// Notice class definitions.
Notice::Notice(NoticeId notice_id) : notice_id_(notice_id) {}
Notice::~Notice() = default;
Notice* Notice::SetFeature(const base::Feature* feature) {
feature_ = feature;
return this;
}
Notice* Notice::SetPreReqApis(const std::vector<NoticeApi*>& apis) {
std::transform(apis.begin(), apis.end(), std::back_inserter(pre_req_apis_),
std::identity());
return this;
}
Notice* Notice::SetTargetApis(const std::vector<NoticeApi*>& apis) {
std::transform(apis.begin(), apis.end(), std::back_inserter(target_apis_),
std::identity());
for (NoticeApi* api : apis) {
api->SetFulfilledBy(this);
}
return this;
}
Notice* Notice::SetViewGroup(std::pair<NoticeViewGroup, int> view_group) {
view_group_ = view_group;
return this;
}
const char* Notice::GetStorageName() const {
CHECK(feature());
return feature()->name;
}
void Notice::RefreshFulfillmentStatus(NoticeStorage& storage) {
auto data = storage.ReadNoticeData(GetStorageName());
if (!data) {
was_fulfilled_ = false;
return;
}
for (const auto& event_pair_ptr : data->notice_events) {
if (!event_pair_ptr) {
continue;
}
if (EvaluateNoticeEvent(event_pair_ptr->event).has_value()) {
was_fulfilled_ = true;
return;
}
}
was_fulfilled_ = false;
}
bool Notice::CanFulfillAllTargetApis() {
// TODO(crbug.com/417727236) Add caching here: We shouldn't recompute this
// every time.
for (NoticeApi* api : target_apis()) {
auto eligibility = api->GetEligibilityLevel();
if (eligibility == EligibilityLevel::kEligibleConsent &&
GetNoticeType() == NoticeType::kConsent) {
continue;
}
if (eligibility == EligibilityLevel::kEligibleNotice &&
GetNoticeType() == NoticeType::kNotice) {
continue;
}
return false;
}
return true;
}
std::optional<bool> Notice::EvaluateNoticeEvent(
PrivacySandboxNoticeEvent event) {
switch (event) {
// Fulfillment : Yes
case PrivacySandboxNoticeEvent::kAck:
case PrivacySandboxNoticeEvent::kSettings:
return true;
// Not Fulfillment
case PrivacySandboxNoticeEvent::kShown:
return std::nullopt;
// Unexpected.
default:
NOTREACHED();
}
}
std::optional<bool> Consent::EvaluateNoticeEvent(
PrivacySandboxNoticeEvent event) {
switch (event) {
// Fulfillment : Yes
case PrivacySandboxNoticeEvent::kOptIn:
return true;
// Fulfillment : No
case PrivacySandboxNoticeEvent::kOptOut:
return false;
// Not Fulfillment
case PrivacySandboxNoticeEvent::kShown:
return std::nullopt;
// Unexpected.
default:
NOTREACHED();
}
}
void Notice::UpdateTargetApiResults(PrivacySandboxNoticeEvent event) {
std::optional<bool> result = EvaluateNoticeEvent(event);
if (!result.has_value()) {
return;
}
for (NoticeApi* api : target_apis()) {
api->UpdateResult(*result);
}
}
bool Notice::IsEnabled() const {
return feature() && base::FeatureList::IsEnabled(*feature());
}
NoticeType Notice::GetNoticeType() {
return NoticeType::kNotice;
}
// Consent class definitions.
Consent::Consent(NoticeId notice_id) : Notice(notice_id) {}
NoticeType Consent::GetNoticeType() {
return NoticeType::kConsent;
}
} // namespace privacy_sandbox
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