| // 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. |
| |
| #ifndef CHROME_BROWSER_EXTENSIONS_EXTERNAL_POLICY_LOADER_H_ |
| #define CHROME_BROWSER_EXTENSIONS_EXTERNAL_POLICY_LOADER_H_ |
| |
| #include <string> |
| |
| #include "base/compiler_specific.h" |
| #include "base/macros.h" |
| #include "chrome/browser/extensions/extension_management.h" |
| #include "chrome/browser/extensions/external_loader.h" |
| |
| namespace base { |
| class DictionaryValue; |
| } |
| |
| namespace extensions { |
| |
| // A specialization of the ExternalProvider that uses extension management |
| // policies to look up which external extensions are registered. |
| class ExternalPolicyLoader : public ExternalLoader, |
| public ExtensionManagement::Observer { |
| public: |
| // Indicates the policies for installed extensions from this class, according |
| // to management polices. |
| enum InstallationType { |
| // Installed extensions are not allowed to be disabled or removed. |
| FORCED, |
| // Installed extensions are allowed to be disabled but not removed. |
| RECOMMENDED |
| }; |
| |
| ExternalPolicyLoader(ExtensionManagement* settings, InstallationType type); |
| |
| // ExtensionManagement::Observer implementation |
| void OnExtensionManagementSettingsChanged() override; |
| |
| // Adds an extension to be updated to the pref dictionary. |
| static void AddExtension(base::DictionaryValue* dict, |
| const std::string& extension_id, |
| const std::string& update_url); |
| |
| protected: |
| void StartLoading() override; |
| |
| private: |
| friend class base::RefCountedThreadSafe<ExternalLoader>; |
| |
| ~ExternalPolicyLoader() override; |
| |
| ExtensionManagement* settings_; |
| InstallationType type_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ExternalPolicyLoader); |
| }; |
| |
| } // namespace extensions |
| |
| #endif // CHROME_BROWSER_EXTENSIONS_EXTERNAL_POLICY_LOADER_H_ |