| // Copyright (c) 2011 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. |
| |
| #ifndef CHROME_INSTALLER_UTIL_SET_REG_VALUE_WORK_ITEM_H__ |
| #define CHROME_INSTALLER_UTIL_SET_REG_VALUE_WORK_ITEM_H__ |
| |
| #include <windows.h> |
| #include <stdint.h> |
| |
| #include <string> |
| #include <vector> |
| |
| #include "base/callback.h" |
| #include "chrome/installer/util/work_item.h" |
| |
| // A WorkItem subclass that sets a registry value with REG_SZ, REG_DWORD, or |
| // REG_QWORD type at the specified path. The value is only set if the target key |
| // exists. |
| class SetRegValueWorkItem : public WorkItem { |
| public: |
| SetRegValueWorkItem(HKEY predefined_root, |
| const std::wstring& key_path, |
| REGSAM wow64_access, |
| const std::wstring& value_name, |
| const std::wstring& value_data, |
| bool overwrite); |
| |
| SetRegValueWorkItem(HKEY predefined_root, |
| const std::wstring& key_path, |
| REGSAM wow64_access, |
| const std::wstring& value_name, |
| DWORD value_data, |
| bool overwrite); |
| |
| SetRegValueWorkItem(HKEY predefined_root, |
| const std::wstring& key_path, |
| REGSAM wow64_access, |
| const std::wstring& value_name, |
| int64_t value_data, |
| bool overwrite); |
| |
| // Implies |overwrite_| and TYPE_SZ for now. |
| SetRegValueWorkItem(HKEY predefined_root, |
| const std::wstring& key_path, |
| REGSAM wow64_access, |
| const std::wstring& value_name, |
| const GetValueFromExistingCallback& get_value_callback); |
| |
| ~SetRegValueWorkItem() override; |
| |
| private: |
| enum SettingStatus { |
| // The status before Do is called. |
| SET_VALUE, |
| // One possible outcome after Do(). A new value is created under the key. |
| NEW_VALUE_CREATED, |
| // One possible outcome after Do(). The previous value under the key has |
| // been overwritten. |
| VALUE_OVERWRITTEN, |
| // One possible outcome after Do(). No change is applied, either |
| // because we are not allowed to overwrite the previous value, or due to |
| // some errors like the key does not exist. |
| VALUE_UNCHANGED, |
| // The status after Do and Rollback is called. |
| VALUE_ROLL_BACK |
| }; |
| |
| // WorkItem: |
| bool DoImpl() override; |
| void RollbackImpl() override; |
| |
| // Root key of the target key under which the value is set. The root key can |
| // only be one of the predefined keys on Windows. |
| HKEY predefined_root_; |
| |
| // Path of the target key under which the value is set. |
| std::wstring key_path_; |
| |
| // Name of the value to be set. |
| std::wstring value_name_; |
| |
| // If this is set, it will be used to get the desired value to be set based on |
| // the existing value in the registry. |
| const GetValueFromExistingCallback get_value_callback_; |
| |
| // Whether to overwrite the existing value under the target key. |
| bool overwrite_; |
| |
| // Whether to force 32-bit or 64-bit view of the target key. |
| REGSAM wow64_access_; |
| |
| // Type of data to store |
| DWORD type_; |
| std::vector<uint8_t> value_; |
| DWORD previous_type_; |
| std::vector<uint8_t> previous_value_; |
| |
| SettingStatus status_; |
| }; |
| |
| #endif // CHROME_INSTALLER_UTIL_SET_REG_VALUE_WORK_ITEM_H__ |