Files
electron/shell/browser/notifications/mac/notification_presenter_mac.mm
Keeley Hammond 8dbc408407 feat: add Notification.getHistory() static method (macOS)
Add `Notification.getHistory()` which returns a `Promise<Notification[]>`
of all delivered notifications still present in Notification Center.

Each returned Notification is a live object connected to the corresponding
delivered notification — interaction events (click, reply, action, close)
will fire on these objects, enabling apps to re-attach event handlers after
a restart.

Key implementation details:
- Queries UNUserNotificationCenter's getDeliveredNotifications API
- Creates live Notification objects with populated id, groupId, title,
  subtitle, and body properties from what macOS provides
- Registers each object with the presenter via Restore() so the
  NotificationCenterDelegate routes events correctly
- Restored notifications use is_restored_ flag to prevent removal from
  Notification Center when the JS object is garbage collected
- Requires code-signed builds (unsigned builds resolve with empty array)

Co-Authored-By: Claude <svc-devxp-claude@slack-corp.com>
2026-03-17 12:25:37 -07:00

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// Copyright (c) 2015 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "shell/browser/notifications/mac/notification_presenter_mac.h"
#include <string>
#include <utility>
#include <vector>
#include "base/logging.h"
#include "base/strings/sys_string_conversions.h"
#include "base/task/sequenced_task_runner.h"
#include "base/task/thread_pool.h"
#include "shell/browser/notifications/mac/cocoa_notification.h"
#include "shell/browser/notifications/mac/notification_center_delegate.h"
namespace electron {
// static
std::unique_ptr<NotificationPresenter> NotificationPresenter::Create() {
return std::make_unique<NotificationPresenterMac>();
}
CocoaNotification* NotificationPresenterMac::GetNotification(
UNNotificationRequest* un_notification_request) {
for (Notification* notification : notifications()) {
auto* native_notification = static_cast<CocoaNotification*>(notification);
if ([native_notification->notification_request().identifier
isEqual:un_notification_request.identifier])
return native_notification;
}
if (electron::debug_notifications) {
LOG(INFO) << "Could not find notification for "
<< [un_notification_request.identifier UTF8String];
}
return nullptr;
}
NotificationPresenterMac::NotificationPresenterMac()
: notification_center_delegate_(
[[NotificationCenterDelegate alloc] initWithPresenter:this]),
image_retainer_(std::make_unique<NotificationImageRetainer>()),
image_task_runner_(base::ThreadPool::CreateSequencedTaskRunner(
{base::MayBlock(), base::TaskPriority::USER_VISIBLE})) {
// Delete any remaining temp files in the image folder from the previous
// sessions.
DCHECK(image_task_runner_);
auto cleanup_task = image_retainer_->GetCleanupTask();
image_task_runner_->PostTask(FROM_HERE, std::move(cleanup_task));
UNUserNotificationCenter* center =
[UNUserNotificationCenter currentNotificationCenter];
center.delegate = notification_center_delegate_;
[center
requestAuthorizationWithOptions:(UNAuthorizationOptionAlert |
UNAuthorizationOptionSound |
UNAuthorizationOptionBadge)
completionHandler:^(BOOL granted,
NSError* _Nullable error) {
if (electron::debug_notifications) {
if (error) {
LOG(INFO)
<< "Error requesting notification authorization: "
<< [error.localizedDescription UTF8String];
} else {
LOG(INFO) << "Notification authorization granted: "
<< granted;
}
}
}];
}
NotificationPresenterMac::~NotificationPresenterMac() {
UNUserNotificationCenter.currentNotificationCenter.delegate = nil;
image_task_runner_->DeleteSoon(FROM_HERE, image_retainer_.release());
}
Notification* NotificationPresenterMac::CreateNotificationObject(
NotificationDelegate* delegate) {
return new CocoaNotification(delegate, this);
}
void NotificationPresenterMac::GetDeliveredNotifications(
GetDeliveredNotificationsCallback callback) {
scoped_refptr<base::SequencedTaskRunner> task_runner =
base::SequencedTaskRunner::GetCurrentDefault();
__block GetDeliveredNotificationsCallback block_callback =
std::move(callback);
[[UNUserNotificationCenter currentNotificationCenter]
getDeliveredNotificationsWithCompletionHandler:^(
NSArray<UNNotification*>* _Nonnull notifications) {
std::vector<NotificationInfo> results;
results.reserve([notifications count]);
for (UNNotification* notification in notifications) {
UNNotificationContent* content = notification.request.content;
NotificationInfo info;
info.id = base::SysNSStringToUTF8(notification.request.identifier);
info.title = base::SysNSStringToUTF8(content.title);
info.subtitle = base::SysNSStringToUTF8(content.subtitle);
info.body = base::SysNSStringToUTF8(content.body);
info.group_id = base::SysNSStringToUTF8(content.threadIdentifier);
results.push_back(std::move(info));
}
task_runner->PostTask(
FROM_HERE,
base::BindOnce(std::move(block_callback), std::move(results)));
}];
}
} // namespace electron