// 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); // Directly access the common feature types. static FeatureProvider* GetAPIFeatures(); static FeatureProvider* GetManifestFeatures(); static FeatureProvider* GetPermissionFeatures(); }; } // namespace extensions #endif // EXTENSIONS_COMMON_FEATURES_FEATURE_PROVIDER_H_