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// Copyright 2017 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_EXTENSIONS_API_NOTIFICATIONS_EXTENSION_NOTIFICATION_DISPLAY_HELPER_H_
#define CHROME_BROWSER_EXTENSIONS_API_NOTIFICATIONS_EXTENSION_NOTIFICATION_DISPLAY_HELPER_H_
#include <memory>
#include <set>
#include <string>
#include <vector>
#include "base/memory/raw_ptr.h"
#include "components/keyed_service/core/keyed_service.h"
class GURL;
class NotificationDisplayService;
class Profile;
namespace message_center {
class Notification;
}
namespace extensions {
// Helper class for displaying notifications through the notification display
// service. The NDS supports notifications that can outlive the browser process,
// and therefore does not retain as much information as is necessary to support
// the extensions API. (Notably the ability to partly update notifications.)
class ExtensionNotificationDisplayHelper : public KeyedService {
public:
explicit ExtensionNotificationDisplayHelper(Profile* profile);
ExtensionNotificationDisplayHelper(
const ExtensionNotificationDisplayHelper&) = delete;
ExtensionNotificationDisplayHelper& operator=(
const ExtensionNotificationDisplayHelper&) = delete;
~ExtensionNotificationDisplayHelper() override;
// Displays the |notification| using the notification display service.
void Display(const message_center::Notification& notification);
// Returns the notification identified by |notification_id| if it is currently
// visible. May return a nullptr.
message_center::Notification* GetByNotificationId(
const std::string& notification_id);
// Returns a set with the IDs of all notifications that are currently being
// shown on behalf of the |extension_origin|.
std::set<std::string> GetNotificationIdsForExtension(
const GURL& extension_origin) const;
// Removes stored state for the notification identified by |notification_id|.
// Returns whether there was local state.
bool EraseDataForNotificationId(const std::string& notification_id);
// Closes the notification identified by |notification_id|. Returns whether a
// notification was closed in response to the call.
bool Close(const std::string& notification_id);
// KeyedService overrides:
void Shutdown() override;
private:
using NotificationVector =
std::vector<std::unique_ptr<message_center::Notification>>;
// Returns the notification display service instance to communicate with.
NotificationDisplayService* GetDisplayService();
// The Profile instance that owns this keyed service.
raw_ptr<Profile> profile_;
// Vector of notifications that are being shown for extensions.
NotificationVector notifications_;
};
} // namespace extensions
#endif // CHROME_BROWSER_EXTENSIONS_API_NOTIFICATIONS_EXTENSION_NOTIFICATION_DISPLAY_HELPER_H_
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