1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CHROME_BROWSER_CHROMEOS_UPGRADE_DETECTOR_CHROMEOS_H_ 6 #define CHROME_BROWSER_CHROMEOS_UPGRADE_DETECTOR_CHROMEOS_H_ 7 8 #include "base/compiler_specific.h" 9 #include "base/timer/timer.h" 10 #include "chrome/browser/upgrade_detector.h" 11 #include "chromeos/dbus/update_engine_client.h" 12 13 template <typename T> struct DefaultSingletonTraits; 14 15 class UpgradeDetectorChromeos : public UpgradeDetector, 16 public chromeos::UpdateEngineClient::Observer { 17 public: 18 virtual ~UpgradeDetectorChromeos(); 19 20 static UpgradeDetectorChromeos* GetInstance(); 21 22 // Initializes the object. Starts observing changes from the update 23 // engine. 24 void Init(); 25 26 // Shuts down the object. Stops observing observe changes from the 27 // update engine. 28 void Shutdown(); 29 30 private: 31 friend struct DefaultSingletonTraits<UpgradeDetectorChromeos>; 32 33 UpgradeDetectorChromeos(); 34 35 // chromeos::UpdateEngineClient::Observer implementation. 36 virtual void UpdateStatusChanged( 37 const chromeos::UpdateEngineClient::Status& status) OVERRIDE; 38 39 // The function that sends out a notification (after a certain time has 40 // elapsed) that lets the rest of the UI know we should start notifying the 41 // user that a new version is available. 42 void NotifyOnUpgrade(); 43 44 // After we detect an upgrade we start a recurring timer to see if enough time 45 // has passed and we should start notifying the user. 46 base::RepeatingTimer<UpgradeDetectorChromeos> upgrade_notification_timer_; 47 bool initialized_; 48 }; 49 50 #endif // CHROME_BROWSER_CHROMEOS_UPGRADE_DETECTOR_CHROMEOS_H_ 51
