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// Copyright (c) 2010 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.
#include "chrome/browser/upgrade_detector.h"
#include "base/file_version_info.h"
#include "base/scoped_ptr.h"
#include "base/time.h"
#include "base/version.h"
#include "chrome/app/chrome_version_info.h"
#include "chrome/common/notification_service.h"
#include "chrome/common/notification_type.h"
#include "chrome/installer/util/browser_distribution.h"
#if defined(OS_WIN)
#include "chrome/installer/util/install_util.h"
#endif
// TODO(finnur): For the stable channel we want to check daily and notify
// the user if more than 2 weeks have passed since the upgrade happened
// (without a reboot). For the dev channel however, I want quicker feedback
// on how the feature works so I'm checking every hour and notifying the
// user immediately.
// How often to check for an upgrade.
static int kCheckForUpgradeEveryMs = 60 * 60 * 1000; // 1 hour.
// How long to wait before notifying the user about the upgrade.
static int kNotifyUserAfterMs = 0;
UpgradeDetector::UpgradeDetector()
: upgrade_detected_(false),
notify_upgrade_(false) {
#if defined(OS_WIN) && defined(GOOGLE_CHROME_BUILD)
detect_upgrade_timer_.Start(
base::TimeDelta::FromMilliseconds(kCheckForUpgradeEveryMs),
this, &UpgradeDetector::CheckForUpgrade);
#endif
}
UpgradeDetector::~UpgradeDetector() {
}
void UpgradeDetector::CheckForUpgrade() {
#if defined(OS_WIN)
using installer::Version;
// Get the version of the currently *installed* instance of Chrome,
// which might be newer than the *running* instance if we have been
// upgraded in the background.
Version* installed_version = InstallUtil::GetChromeVersion(false);
if (!installed_version) {
// User level Chrome is not installed, check system level.
installed_version = InstallUtil::GetChromeVersion(true);
}
// Get the version of the currently *running* instance of Chrome.
scoped_ptr<FileVersionInfo> version(chrome_app::GetChromeVersionInfo());
if (version.get() == NULL) {
NOTREACHED() << L"Failed to get current file version";
return;
}
scoped_ptr<Version> running_version(Version::GetVersionFromString(
version->file_version()));
if (installed_version->IsHigherThan(running_version.get())) {
// Stop the recurring timer (that is checking for changes).
detect_upgrade_timer_.Stop();
upgrade_detected_ = true;
NotificationService::current()->Notify(
NotificationType::UPGRADE_DETECTED,
Source<UpgradeDetector>(this),
NotificationService::NoDetails());
// Start the OneShot timer for notifying the user after a certain period.
upgrade_notification_timer_.Start(
base::TimeDelta::FromMilliseconds(kNotifyUserAfterMs),
this, &UpgradeDetector::NotifyOnUpgrade);
}
#else
DCHECK(kNotifyUserAfterMs > 0); // Avoid error: var defined but not used.
NOTIMPLEMENTED();
#endif
}
void UpgradeDetector::NotifyOnUpgrade() {
notify_upgrade_ = true;
NotificationService::current()->Notify(
NotificationType::UPGRADE_RECOMMENDED,
Source<UpgradeDetector>(this),
NotificationService::NoDetails());
}
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