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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/privacy_sandbox_queue_manager.h"
#include "base/metrics/histogram_functions.h"
#include "chrome/browser/privacy_sandbox/privacy_sandbox_service.h"
#include "chrome/browser/privacy_sandbox/privacy_sandbox_service_factory.h"
#include "chrome/browser/ui/privacy_sandbox/privacy_sandbox_prompt_helper.h"
#include "chrome/browser/user_education/user_education_service.h"
#include "chrome/browser/user_education/user_education_service_factory.h"
#include "components/privacy_sandbox/privacy_sandbox_features.h"
#include "components/user_education/common/product_messaging_controller.h"
#if !BUILDFLAG(IS_ANDROID)
#include "chrome/browser/privacy_sandbox/privacy_sandbox_queue_manager.h"
#endif // !BUILDFLAG(IS_ANDROID)
DEFINE_REQUIRED_NOTICE_IDENTIFIER(kPrivacySandboxNotice);
namespace privacy_sandbox {
PrivacySandboxQueueManager::PrivacySandboxQueueManager(Profile* profile)
: profile_(profile) {}
// Default constructor used for testing.
PrivacySandboxQueueManager::PrivacySandboxQueueManager() = default;
PrivacySandboxQueueManager::~PrivacySandboxQueueManager() = default;
user_education::ProductMessagingController*
PrivacySandboxQueueManager::GetProductMessagingController() {
if (!product_messaging_controller_) {
// If there is a valid service, set it.
if (auto* service =
UserEducationServiceFactory::GetForBrowserContext(profile_)) {
product_messaging_controller_ = &service->product_messaging_controller();
}
}
return product_messaging_controller_;
}
void PrivacySandboxQueueManager::SetSuppressQueue(bool suppress_queue) {
if (!base::FeatureList::IsEnabled(
privacy_sandbox::kPrivacySandboxNoticeQueue)) {
return;
}
suppress_queue_ = suppress_queue;
}
void PrivacySandboxQueueManager::MaybeEmitQueueStateMetrics() {
// We only want to count when we are not holding the handle.
if (IsHoldingHandle()) {
return;
}
handle_check_failed_count_++;
if (IsNoticeQueued()) {
base::UmaHistogramCounts100(
"PrivacySandbox.Notice.NotHoldingHandle.InQueue",
handle_check_failed_count_);
} else {
base::UmaHistogramCounts100(
"PrivacySandbox.Notice.NotHoldingHandle.NotInQueue",
handle_check_failed_count_);
}
}
bool PrivacySandboxQueueManager::IsHoldingHandle() {
return static_cast<bool>(notice_handle_);
}
void PrivacySandboxQueueManager::HoldQueueHandle(
user_education::RequiredNoticePriorityHandle messaging_priority_handle) {
if (!base::FeatureList::IsEnabled(
privacy_sandbox::kPrivacySandboxNoticeQueue)) {
return;
}
notice_handle_ = std::move(messaging_priority_handle);
}
void PrivacySandboxQueueManager::SetQueueHandleShown() {
if (!base::FeatureList::IsEnabled(
privacy_sandbox::kPrivacySandboxNoticeQueue)) {
return;
}
notice_handle_.SetShown();
}
void PrivacySandboxQueueManager::MaybeUnqueueNotice() {
if (!base::FeatureList::IsEnabled(
privacy_sandbox::kPrivacySandboxNoticeQueue) ||
suppress_queue_) {
return;
}
// Release the handle if we are holding it (checked by controller).
notice_handle_.Release();
// Ensure we don't attempt to access the product messaging controller if it
// doesn't exist.
if (auto* product_messaging_controller = GetProductMessagingController()) {
// Unqueue if we are in the queue (handled by controller).
product_messaging_controller->UnqueueRequiredNotice(kPrivacySandboxNotice);
}
}
bool PrivacySandboxQueueManager::IsNoticeQueued() {
if (auto* product_messaging_controller = GetProductMessagingController()) {
return product_messaging_controller->IsNoticeQueued(kPrivacySandboxNotice);
}
return false;
}
void PrivacySandboxQueueManager::MaybeQueueNotice() {
if (!base::FeatureList::IsEnabled(
privacy_sandbox::kPrivacySandboxNoticeQueue) ||
suppress_queue_) {
return;
}
// We don't want to queue in the case the profile does not require a prompt.
auto* privacy_sandbox_service =
PrivacySandboxServiceFactory::GetForProfile(profile_);
if (!privacy_sandbox_service ||
privacy_sandbox_service->GetRequiredPromptType(
PrivacySandboxService::SurfaceType::kDesktop) ==
PrivacySandboxService::PromptType::kNone) {
return;
}
// If we are already holding the handle or in the queue, we don't want to
// requeue.
if (IsHoldingHandle() || IsNoticeQueued()) {
return;
}
if (auto* product_messaging_controller = GetProductMessagingController()) {
product_messaging_controller->QueueRequiredNotice(
kPrivacySandboxNotice,
base::BindOnce(&PrivacySandboxQueueManager::HoldQueueHandle, weak_factory_.GetWeakPtr()), {/* TODO(crbug.com/370804492): When we add the DMA notice, add it to this show_after_ list*/});
}
}
} // namespace privacy_sandbox
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