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// Copyright (c) 2012 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 CHROME_BROWSER_CHROMEOS_UPGRADE_DETECTOR_CHROMEOS_H_
#define CHROME_BROWSER_CHROMEOS_UPGRADE_DETECTOR_CHROMEOS_H_
#include "base/compiler_specific.h"
#include "base/memory/weak_ptr.h"
#include "base/timer/timer.h"
#include "chrome/browser/upgrade_detector.h"
#include "chromeos/dbus/update_engine_client.h"
namespace base {
template <typename T>
struct DefaultSingletonTraits;
} // namespace base
class UpgradeDetectorChromeos : public UpgradeDetector,
public chromeos::UpdateEngineClient::Observer {
public:
~UpgradeDetectorChromeos() override;
static UpgradeDetectorChromeos* GetInstance();
// Initializes the object. Starts observing changes from the update
// engine.
void Init();
// Shuts down the object. Stops observing observe changes from the
// update engine.
void Shutdown();
private:
friend struct base::DefaultSingletonTraits<UpgradeDetectorChromeos>;
class ChannelsRequester;
UpgradeDetectorChromeos();
// chromeos::UpdateEngineClient::Observer implementation.
void UpdateStatusChanged(
const chromeos::UpdateEngineClient::Status& status) override;
// The function that sends out a notification (after a certain time has
// elapsed) that lets the rest of the UI know we should start notifying the
// user that a new version is available.
void NotifyOnUpgrade();
void OnChannelsReceived(const std::string& current_channel,
const std::string& target_channel);
// After we detect an upgrade we start a recurring timer to see if enough time
// has passed and we should start notifying the user.
base::RepeatingTimer upgrade_notification_timer_;
bool initialized_;
base::Time upgrade_detected_time_;
scoped_ptr<ChannelsRequester> channels_requester_;
base::WeakPtrFactory<UpgradeDetectorChromeos> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(UpgradeDetectorChromeos);
};
#endif // CHROME_BROWSER_CHROMEOS_UPGRADE_DETECTOR_CHROMEOS_H_