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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_UI_SAFETY_HUB_NOTIFICATION_PERMISSION_REVIEW_SERVICE_H_
#define CHROME_BROWSER_UI_SAFETY_HUB_NOTIFICATION_PERMISSION_REVIEW_SERVICE_H_
#include <vector>
#include "base/memory/raw_ptr.h"
#include "base/scoped_observation.h"
#include "base/values.h"
#include "chrome/browser/ui/safety_hub/notification_permission_review_result.h"
#include "components/content_settings/core/browser/content_settings_observer.h"
#include "components/content_settings/core/browser/host_content_settings_map.h"
#include "components/content_settings/core/common/content_settings_pattern.h"
#include "components/keyed_service/core/keyed_service.h"
#include "components/site_engagement/content/site_engagement_service.h"
// This class provides data for the "Review Notification Permissions" dialog.
// This module shows the domains that send a lot of notification, but have low
// engagement.
class NotificationPermissionsReviewService : public SafetyHubService,
public content_settings::Observer {
public:
explicit NotificationPermissionsReviewService(
HostContentSettingsMap* hcsm,
site_engagement::SiteEngagementService* engagement_service);
NotificationPermissionsReviewService(
const NotificationPermissionsReviewService&) = delete;
NotificationPermissionsReviewService& operator=(
const NotificationPermissionsReviewService&) = delete;
~NotificationPermissionsReviewService() override;
// content_settings::Observer implementation.
void OnContentSettingChanged(
const ContentSettingsPattern& primary_pattern,
const ContentSettingsPattern& secondary_pattern,
ContentSettingsTypeSet content_type_set) override;
// KeyedService implementation.
void Shutdown() override;
// SafetyHubService implementation.
// Returns a weak pointer to the service.
base::WeakPtr<SafetyHubService> GetAsWeakRef() override;
// Add given pattern pair to the blocklist for the "Review notification
// permission" feature. The patterns in blocklist will not be suggested to be
// reviewed by the user again.
void AddPatternToNotificationPermissionReviewBlocklist(
const ContentSettingsPattern& primary_pattern,
const ContentSettingsPattern& secondary_pattern);
// Removes given origin from the blocklist for the "Review notification
// permission" feature. The pattern may be suggested again for review.
void RemovePatternFromNotificationPermissionReviewBlocklist(
const ContentSettingsPattern& primary_pattern,
const ContentSettingsPattern& secondary_pattern);
// Returns a sorted list with the notification count for each domain to be
// shown on the 'Review Notification Permissions' dialog. Those domains send a
// lot of notifications, but have low site engagement.
base::Value::List PopulateNotificationPermissionReviewData();
// Returns the list of all notification permissions that should be reviewed.
std::unique_ptr<NotificationPermissionsReviewResult>
GetNotificationPermissions();
// Sets the notification permission for the given origin.
void SetNotificationPermissionsForOrigin(std::string origin,
ContentSetting setting);
private:
// SafetyHubService implementation
// Initializes the latest result to the notifications that should be reviewed.
std::unique_ptr<SafetyHubService::Result> InitializeLatestResultImpl()
override;
// Returns the interval at which the repeated updates will be run.
base::TimeDelta GetRepeatedUpdateInterval() override;
// For the notification permission review service, there is not background
// task. Instead, all operations happen on the UI thread.
base::OnceCallback<std::unique_ptr<Result>()> GetBackgroundTask() override;
// A boilerplate function that returns an empty result.
static std::unique_ptr<SafetyHubService::Result> UpdateOnBackgroundThread();
// Gathers all the sites that sent a lot of notifications, and that the user
// should review.
std::unique_ptr<Result> UpdateOnUIThread(
std::unique_ptr<Result> result) override;
// Returns |true| when the URL and notification count combination meets the
// criteria for adding the origin to the review list.
bool ShouldAddToNotificationPermissionReviewList(GURL url,
int notification_count);
// Whether notifications from disruptive sites are revoked. In that case, the
// notification permission module should be hidden.
bool IsDisruptiveNotificationRevocationEnabled();
// Used to determine how often the user engaged with websites.
raw_ptr<site_engagement::SiteEngagementService> engagement_service_;
// Used to update the notification permissions per URL.
const scoped_refptr<HostContentSettingsMap> hcsm_;
// Observer to watch for content settings changed.
base::ScopedObservation<HostContentSettingsMap, content_settings::Observer>
content_settings_observation_{this};
base::WeakPtrFactory<NotificationPermissionsReviewService> weak_factory_{
this};
};
#endif // CHROME_BROWSER_UI_SAFETY_HUB_NOTIFICATION_PERMISSION_REVIEW_SERVICE_H_
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