diff options
Diffstat (limited to 'base/prefs/overlay_user_pref_store.cc')
| -rw-r--r-- | base/prefs/overlay_user_pref_store.cc | 184 |
1 files changed, 0 insertions, 184 deletions
diff --git a/base/prefs/overlay_user_pref_store.cc b/base/prefs/overlay_user_pref_store.cc deleted file mode 100644 index 4c236f10dd..0000000000 --- a/base/prefs/overlay_user_pref_store.cc +++ /dev/null @@ -1,184 +0,0 @@ -// 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 "base/prefs/overlay_user_pref_store.h" - -#include "base/memory/scoped_ptr.h" -#include "base/values.h" - -OverlayUserPrefStore::OverlayUserPrefStore( - PersistentPrefStore* underlay) - : underlay_(underlay) { - underlay_->AddObserver(this); -} - -bool OverlayUserPrefStore::IsSetInOverlay(const std::string& key) const { - return overlay_.GetValue(key, NULL); -} - -void OverlayUserPrefStore::AddObserver(PrefStore::Observer* observer) { - observers_.AddObserver(observer); -} - -void OverlayUserPrefStore::RemoveObserver(PrefStore::Observer* observer) { - observers_.RemoveObserver(observer); -} - -bool OverlayUserPrefStore::HasObservers() const { - return observers_.might_have_observers(); -} - -bool OverlayUserPrefStore::IsInitializationComplete() const { - return underlay_->IsInitializationComplete(); -} - -bool OverlayUserPrefStore::GetValue(const std::string& key, - const base::Value** result) const { - // If the |key| shall NOT be stored in the overlay store, there must not - // be an entry. - DCHECK(ShallBeStoredInOverlay(key) || !overlay_.GetValue(key, NULL)); - - if (overlay_.GetValue(key, result)) - return true; - return underlay_->GetValue(GetUnderlayKey(key), result); -} - -bool OverlayUserPrefStore::GetMutableValue(const std::string& key, - base::Value** result) { - if (!ShallBeStoredInOverlay(key)) - return underlay_->GetMutableValue(GetUnderlayKey(key), result); - - if (overlay_.GetValue(key, result)) - return true; - - // Try to create copy of underlay if the overlay does not contain a value. - base::Value* underlay_value = NULL; - if (!underlay_->GetMutableValue(GetUnderlayKey(key), &underlay_value)) - return false; - - *result = underlay_value->DeepCopy(); - overlay_.SetValue(key, *result); - return true; -} - -void OverlayUserPrefStore::SetValue(const std::string& key, - base::Value* value, - uint32 flags) { - if (!ShallBeStoredInOverlay(key)) { - underlay_->SetValue(GetUnderlayKey(key), value, flags); - return; - } - - if (overlay_.SetValue(key, value)) - ReportValueChanged(key, flags); -} - -void OverlayUserPrefStore::SetValueSilently(const std::string& key, - base::Value* value, - uint32 flags) { - if (!ShallBeStoredInOverlay(key)) { - underlay_->SetValueSilently(GetUnderlayKey(key), value, flags); - return; - } - - overlay_.SetValue(key, value); -} - -void OverlayUserPrefStore::RemoveValue(const std::string& key, uint32 flags) { - if (!ShallBeStoredInOverlay(key)) { - underlay_->RemoveValue(GetUnderlayKey(key), flags); - return; - } - - if (overlay_.RemoveValue(key)) - ReportValueChanged(key, flags); -} - -bool OverlayUserPrefStore::ReadOnly() const { - return false; -} - -PersistentPrefStore::PrefReadError OverlayUserPrefStore::GetReadError() const { - return PersistentPrefStore::PREF_READ_ERROR_NONE; -} - -PersistentPrefStore::PrefReadError OverlayUserPrefStore::ReadPrefs() { - // We do not read intentionally. - OnInitializationCompleted(true); - return PersistentPrefStore::PREF_READ_ERROR_NONE; -} - -void OverlayUserPrefStore::ReadPrefsAsync( - ReadErrorDelegate* error_delegate_raw) { - scoped_ptr<ReadErrorDelegate> error_delegate(error_delegate_raw); - // We do not read intentionally. - OnInitializationCompleted(true); -} - -void OverlayUserPrefStore::CommitPendingWrite() { - underlay_->CommitPendingWrite(); - // We do not write our content intentionally. -} - -void OverlayUserPrefStore::SchedulePendingLossyWrites() { - underlay_->SchedulePendingLossyWrites(); -} - -void OverlayUserPrefStore::ReportValueChanged(const std::string& key, - uint32 flags) { - FOR_EACH_OBSERVER(PrefStore::Observer, observers_, OnPrefValueChanged(key)); -} - -void OverlayUserPrefStore::OnPrefValueChanged(const std::string& key) { - if (!overlay_.GetValue(GetOverlayKey(key), NULL)) - ReportValueChanged(GetOverlayKey(key), DEFAULT_PREF_WRITE_FLAGS); -} - -void OverlayUserPrefStore::OnInitializationCompleted(bool succeeded) { - FOR_EACH_OBSERVER(PrefStore::Observer, observers_, - OnInitializationCompleted(succeeded)); -} - -void OverlayUserPrefStore::RegisterOverlayPref(const std::string& key) { - RegisterOverlayPref(key, key); -} - -void OverlayUserPrefStore::RegisterOverlayPref( - const std::string& overlay_key, - const std::string& underlay_key) { - DCHECK(!overlay_key.empty()) << "Overlay key is empty"; - DCHECK(overlay_to_underlay_names_map_.find(overlay_key) == - overlay_to_underlay_names_map_.end()) << - "Overlay key already registered"; - DCHECK(!underlay_key.empty()) << "Underlay key is empty"; - DCHECK(underlay_to_overlay_names_map_.find(underlay_key) == - underlay_to_overlay_names_map_.end()) << - "Underlay key already registered"; - overlay_to_underlay_names_map_[overlay_key] = underlay_key; - underlay_to_overlay_names_map_[underlay_key] = overlay_key; -} - -OverlayUserPrefStore::~OverlayUserPrefStore() { - underlay_->RemoveObserver(this); -} - -const std::string& OverlayUserPrefStore::GetOverlayKey( - const std::string& underlay_key) const { - NamesMap::const_iterator i = - underlay_to_overlay_names_map_.find(underlay_key); - return i != underlay_to_overlay_names_map_.end() ? i->second : underlay_key; -} - -const std::string& OverlayUserPrefStore::GetUnderlayKey( - const std::string& overlay_key) const { - NamesMap::const_iterator i = - overlay_to_underlay_names_map_.find(overlay_key); - return i != overlay_to_underlay_names_map_.end() ? i->second : overlay_key; -} - -bool OverlayUserPrefStore::ShallBeStoredInOverlay( - const std::string& key) const { - return overlay_to_underlay_names_map_.find(key) != - overlay_to_underlay_names_map_.end(); -} |