chromium/chrome/browser/notifications/notification_platform_bridge_delegator.cc

// Copyright 2020 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/notifications/notification_platform_bridge_delegator.h"

#include <algorithm>
#include <utility>
#include <vector>

#include "base/barrier_closure.h"
#include "base/check.h"
#include "base/functional/bind.h"
#include "base/metrics/histogram_functions.h"
#include "build/build_config.h"
#include "build/buildflag.h"
#include "build/chromeos_buildflags.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/notifications/notification_display_service_impl.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/common/buildflags.h"
#include "chrome/common/chrome_features.h"
#include "chrome/common/pref_names.h"
#include "components/prefs/pref_service.h"

#if BUILDFLAG(ENABLE_CHROME_NOTIFICATIONS)
#include "chrome/browser/notifications/notification_platform_bridge_message_center.h"
#endif

#if BUILDFLAG(IS_WIN)
#include "chrome/browser/notifications/notification_platform_bridge_win.h"
#endif

namespace {

// Returns if the current platform has system notifications enabled.
// Platforms behave as follows:
//
//   * Android, Chrome OS
//     Always uses system notifications.
//
//   * Windows before 10 RS4 (incl. Win8 & Win7)
//     Always uses message center.
//
//   * Mac OS X, Linux, Windows 10 RS4+
//     Uses system notifications by default, but can fall back to the message
//     center if features::kSystemNotifications is disabled or initialization
//     fails. Linux additionally checks if prefs::kAllowSystemNotifications is
//     disabled and falls back to the message center if so.
//
// Please try to keep this comment up to date when changing behaviour on one of
// the platforms supported by the browser.
bool SystemNotificationsEnabled(Profile* profile) { … }

NotificationPlatformBridge* GetSystemNotificationPlatformBridge(
    Profile* profile) { … }

// Returns the NotificationPlatformBridge to use for the message center. May be
// a nullptr for platforms where the message center is not available.
NotificationPlatformBridge* GetMessageCenterBridge() { … }

}  // namespace

NotificationPlatformBridgeDelegator::NotificationPlatformBridgeDelegator(
    Profile* profile,
    base::OnceClosure ready_callback)
    : … { … }

NotificationPlatformBridgeDelegator::~NotificationPlatformBridgeDelegator() =
    default;

void NotificationPlatformBridgeDelegator::Display(
    NotificationHandler::Type notification_type,
    const message_center::Notification& notification,
    std::unique_ptr<NotificationCommon::Metadata> metadata) { … }

void NotificationPlatformBridgeDelegator::Close(
    NotificationHandler::Type notification_type,
    const std::string& notification_id) { … }

void NotificationPlatformBridgeDelegator::GetDisplayed(
    GetDisplayedNotificationsCallback callback) const { … }

void NotificationPlatformBridgeDelegator::GetDisplayedForOrigin(
    const GURL& origin,
    GetDisplayedNotificationsCallback callback) const { … }

void NotificationPlatformBridgeDelegator::DisplayServiceShutDown() { … }

NotificationPlatformBridge*
NotificationPlatformBridgeDelegator::GetBridgeForType(
    NotificationHandler::Type type) { … }

void NotificationPlatformBridgeDelegator::
    OnSystemNotificationPlatformBridgeReady(bool success) { … }