| // Copyright 2013 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 EXTENSIONS_COMMON_FEATURES_FEATURE_PROVIDER_H_ |
| #define EXTENSIONS_COMMON_FEATURES_FEATURE_PROVIDER_H_ |
| |
| #include <string> |
| #include <vector> |
| |
| namespace extensions { |
| |
| class Feature; |
| |
| // Implemented by classes that can vend features. |
| class FeatureProvider { |
| public: |
| FeatureProvider() {} |
| virtual ~FeatureProvider() {} |
| |
| // Returns the feature with the specified name. |
| virtual Feature* GetFeature(const std::string& name) = 0; |
| |
| // Returns the parent feature of |feature|, or NULL if there isn't one. |
| virtual Feature* GetParent(Feature* feature) = 0; |
| |
| // Returns all features described by this instance. |
| virtual const std::vector<std::string>& GetAllFeatureNames() = 0; |
| |
| // Gets a feature provider for a specific feature type, like "permission". |
| static FeatureProvider* GetByName(const std::string& name); |
| }; |
| |
| } // namespace extensions |
| |
| #endif // EXTENSIONS_COMMON_FEATURES_FEATURE_PROVIDER_H_ |