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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.
#include "chrome/browser/prefs/pref_service_syncable.h"
#include "base/bind.h"
#include "base/files/file_path.h"
#include "base/prefs/default_pref_store.h"
#include "base/prefs/overlay_user_pref_store.h"
#include "base/prefs/pref_notifier_impl.h"
#include "base/prefs/pref_registry.h"
#include "base/prefs/pref_value_store.h"
#include "base/strings/string_number_conversions.h"
#include "base/value_conversions.h"
#include "chrome/browser/prefs/pref_model_associator.h"
#include "chrome/browser/prefs/pref_registry_syncable.h"
#include "chrome/browser/prefs/pref_service_syncable_observer.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/prefs/prefs_tab_helper.h"
// static
PrefServiceSyncable* PrefServiceSyncable::FromProfile(Profile* profile) {
return static_cast<PrefServiceSyncable*>(profile->GetPrefs());
}
// static
PrefServiceSyncable* PrefServiceSyncable::IncognitoFromProfile(
Profile* profile) {
return static_cast<PrefServiceSyncable*>(profile->GetOffTheRecordPrefs());
}
PrefServiceSyncable::PrefServiceSyncable(
PrefNotifierImpl* pref_notifier,
PrefValueStore* pref_value_store,
PersistentPrefStore* user_prefs,
PrefRegistrySyncable* pref_registry,
base::Callback<void(PersistentPrefStore::PrefReadError)>
read_error_callback,
bool async)
: PrefService(pref_notifier,
pref_value_store,
user_prefs,
pref_registry,
read_error_callback,
async) {
pref_sync_associator_.SetPrefService(this);
// Let PrefModelAssociator know about changes to preference values.
pref_value_store->set_callback(
base::Bind(&PrefModelAssociator::ProcessPrefChange,
base::Unretained(&pref_sync_associator_)));
// Add already-registered syncable preferences to PrefModelAssociator.
const std::set<std::string>& syncable_preferences =
pref_registry->syncable_preferences();
for (std::set<std::string>::const_iterator it = syncable_preferences.begin();
it != syncable_preferences.end();
++it) {
AddRegisteredSyncablePreference(it->c_str());
}
// Watch for syncable preferences registered after this point.
pref_registry->SetSyncableRegistrationCallback(
base::Bind(&PrefServiceSyncable::AddRegisteredSyncablePreference,
base::Unretained(this)));
}
PrefServiceSyncable::~PrefServiceSyncable() {
// Remove our callback from the registry, since it may outlive us.
PrefRegistrySyncable* registry =
static_cast<PrefRegistrySyncable*>(pref_registry_.get());
registry->SetSyncableRegistrationCallback(
PrefRegistrySyncable::SyncableRegistrationCallback());
}
PrefServiceSyncable* PrefServiceSyncable::CreateIncognitoPrefService(
PrefStore* incognito_extension_prefs) {
pref_service_forked_ = true;
PrefNotifierImpl* pref_notifier = new PrefNotifierImpl();
OverlayUserPrefStore* incognito_pref_store =
new OverlayUserPrefStore(user_pref_store_.get());
PrefsTabHelper::InitIncognitoUserPrefStore(incognito_pref_store);
scoped_refptr<PrefRegistrySyncable> forked_registry =
static_cast<PrefRegistrySyncable*>(
pref_registry_.get())->ForkForIncognito();
PrefServiceSyncable* incognito_service = new PrefServiceSyncable(
pref_notifier,
pref_value_store_->CloneAndSpecialize(
NULL, // managed
incognito_extension_prefs,
NULL, // command_line_prefs
incognito_pref_store,
NULL, // recommended
forked_registry->defaults(),
pref_notifier),
incognito_pref_store,
forked_registry,
read_error_callback_,
false);
return incognito_service;
}
bool PrefServiceSyncable::IsSyncing() {
return pref_sync_associator_.models_associated();
}
void PrefServiceSyncable::AddObserver(PrefServiceSyncableObserver* observer) {
observer_list_.AddObserver(observer);
}
void PrefServiceSyncable::RemoveObserver(
PrefServiceSyncableObserver* observer) {
observer_list_.RemoveObserver(observer);
}
syncer::SyncableService* PrefServiceSyncable::GetSyncableService() {
return &pref_sync_associator_;
}
void PrefServiceSyncable::UpdateCommandLinePrefStore(
PrefStore* cmd_line_store) {
// If |pref_service_forked_| is true, then this PrefService and the forked
// copies will be out of sync.
DCHECK(!pref_service_forked_);
PrefService::UpdateCommandLinePrefStore(cmd_line_store);
}
void PrefServiceSyncable::AddRegisteredSyncablePreference(const char* path) {
DCHECK(FindPreference(path));
pref_sync_associator_.RegisterPref(path);
}
void PrefServiceSyncable::OnIsSyncingChanged() {
FOR_EACH_OBSERVER(PrefServiceSyncableObserver, observer_list_,
OnIsSyncingChanged());
}
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