1 // Copyright (c) 2011 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.
5 #ifndef CHROME_BROWSER_UPGRADE_DETECTOR_IMPL_H_
6 #define CHROME_BROWSER_UPGRADE_DETECTOR_IMPL_H_
8 #include "base/memory/weak_ptr.h"
9 #include "base/timer/timer.h"
10 #include "base/version.h"
11 #include "chrome/browser/upgrade_detector.h"
13 template <typename T
> struct DefaultSingletonTraits
;
15 class UpgradeDetectorImpl
: public UpgradeDetector
{
17 virtual ~UpgradeDetectorImpl();
19 // Returns the currently installed Chrome version, which may be newer than the
20 // one currently running. Not supported on Android, iOS or ChromeOS. Must be
21 // run on a thread where I/O operations are allowed (e.g. FILE thread).
22 static base::Version
GetCurrentlyInstalledVersion();
24 // Returns the singleton instance.
25 static UpgradeDetectorImpl
* GetInstance();
28 friend struct DefaultSingletonTraits
<UpgradeDetectorImpl
>;
30 UpgradeDetectorImpl();
32 // Start the timer that will call |CheckForUpgrade()|.
33 void StartTimerForUpgradeCheck();
35 // Launches a task on the file thread to check if we have the latest version.
36 void CheckForUpgrade();
38 // Sends out a notification and starts a one shot timer to wait until
39 // notifying the user.
40 void UpgradeDetected(UpgradeAvailable upgrade_available
);
42 // Returns true after calling UpgradeDetected if current install is outdated.
43 bool DetectOutdatedInstall();
45 // The function that sends out a notification (after a certain time has
46 // elapsed) that lets the rest of the UI know we should start notifying the
47 // user that a new version is available.
48 void NotifyOnUpgrade();
50 // Called on the FILE thread to detect an upgrade. Calls back UpgradeDetected
51 // on the UI thread if so. Although it looks weird, this needs to be a static
52 // method receiving a WeakPtr<> to this object so that we can interrupt
53 // the UpgradeDetected callback before it runs. Having this method non-static
54 // and using |this| directly wouldn't be thread safe. And keeping it as a
55 // non-class function would prevent it from calling UpgradeDetected.
56 static void DetectUpgradeTask(
57 base::WeakPtr
<UpgradeDetectorImpl
> upgrade_detector
);
59 // We periodically check to see if Chrome has been upgraded.
60 base::RepeatingTimer
<UpgradeDetectorImpl
> detect_upgrade_timer_
;
62 // After we detect an upgrade we start a recurring timer to see if enough time
63 // has passed and we should start notifying the user.
64 base::RepeatingTimer
<UpgradeDetectorImpl
> upgrade_notification_timer_
;
66 // We use this factory to create callback tasks for UpgradeDetected. We pass
67 // the task to the actual upgrade detection code, which is in
69 base::WeakPtrFactory
<UpgradeDetectorImpl
> weak_factory_
;
71 // True if this build is a dev or canary channel build.
72 bool is_unstable_channel_
;
74 // True if auto update is turned on.
75 bool is_auto_update_enabled_
;
77 // The date the binaries were built.
78 base::Time build_date_
;
80 DISALLOW_COPY_AND_ASSIGN(UpgradeDetectorImpl
);
84 #endif // CHROME_BROWSER_UPGRADE_DETECTOR_IMPL_H_