| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef EXTENSIONS_BROWSER_EVENT_PAGE_TRACKER_H_ |
| #define EXTENSIONS_BROWSER_EVENT_PAGE_TRACKER_H_ |
| |
| #include <string> |
| |
| #include "base/callback_forward.h" |
| |
| namespace extensions { |
| |
| // Tracks an extension's event page suspend state. |
| class EventPageTracker { |
| public: |
| // Returns true if an extension's event page is suspended, |
| // or false if it is active. |
| virtual bool IsEventPageSuspended(const std::string& extension_id) = 0; |
| |
| // Wakes an extension's event page from a suspended state and calls |
| // |callback| after it is reactivated. |
| // |
| // |callback| will be passed true if the extension was reactivated |
| // successfully, or false if an error occurred. |
| // |
| // Returns true if a wake operation was scheduled successfully, |
| // or false if the event page was already awake. |
| // Callback will be run asynchronously if true, and never run if false. |
| virtual bool WakeEventPage(const std::string& extension_id, |
| base::OnceCallback<void(bool)> callback) = 0; |
| }; |
| |
| } // namespace extensions |
| |
| #endif // EXTENSIONS_BROWSER_EVENT_PAGE_TRACKER_H_ |