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// Copyright 2014 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/sync/backup_rollback_controller.h"
#include "base/command_line.h"
#include "base/message_loop/message_loop.h"
#include "chrome/browser/sync/managed_user_signin_manager_wrapper.h"
#include "chrome/common/chrome_switches.h"
#include "components/sync_driver/sync_prefs.h"
namespace browser_sync {
#if defined(OS_WIN) || defined(OS_MACOSX) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))
// Number of rollback attempts to try before giving up.
static const int kRollbackLimits = 3;
#endif
BackupRollbackController::BackupRollbackController(
sync_driver::SyncPrefs* sync_prefs,
const ManagedUserSigninManagerWrapper* signin,
base::Closure start_backup,
base::Closure start_rollback)
: sync_prefs_(sync_prefs),
signin_(signin),
start_backup_(start_backup),
start_rollback_(start_rollback),
weak_ptr_factory_(this) {
}
BackupRollbackController::~BackupRollbackController() {
}
void BackupRollbackController::Start(base::TimeDelta delay) {
#if defined(OS_WIN) || defined(OS_MACOSX) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))
if (CommandLine::ForCurrentProcess()->HasSwitch(
switches::kSyncDisableBackup)) {
return;
}
if (!CommandLine::ForCurrentProcess()->HasSwitch(
switches::kSyncEnableRollback)) {
sync_prefs_->SetRemainingRollbackTries(0);
}
if (delay == base::TimeDelta()) {
TryStart();
} else {
base::MessageLoop::current()->PostDelayedTask(
FROM_HERE,
base::Bind(&BackupRollbackController::TryStart,
weak_ptr_factory_.GetWeakPtr()),
delay);
}
#endif
}
void BackupRollbackController::OnRollbackReceived() {
#if defined(OS_WIN) || defined(OS_MACOSX) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))
sync_prefs_->SetRemainingRollbackTries(kRollbackLimits);
#endif
}
void BackupRollbackController::OnRollbackDone() {
#if defined(OS_WIN) || defined(OS_MACOSX) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))
sync_prefs_->SetRemainingRollbackTries(0);
#endif
}
void BackupRollbackController::TryStart() {
if (!signin_->GetEffectiveUsername().empty()) {
DVLOG(1) << "Don't start backup/rollback when user is signed in.";
return;
}
int rollback_tries = sync_prefs_->GetRemainingRollbackTries();
if (rollback_tries > 0) {
DVLOG(1) << "Start rollback.";
sync_prefs_->SetRemainingRollbackTries(rollback_tries - 1);
start_rollback_.Run();
} else {
DVLOG(1) << "Start backup.";
start_backup_.Run();
}
}
} // namespace browser_sync
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