| // Copyright 2017 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_RENDERER_BINDINGS_BINDING_ACCESS_CHECKER_H_ |
| #define EXTENSIONS_RENDERER_BINDINGS_BINDING_ACCESS_CHECKER_H_ |
| |
| #include <string> |
| |
| #include "base/callback.h" |
| #include "base/macros.h" |
| #include "v8/include/v8.h" |
| |
| namespace extensions { |
| |
| // A helper class to handle access-checking API features. |
| class BindingAccessChecker { |
| public: |
| // The callback for determining if a given API feature (specified by |name|) |
| // is available in the given context. |
| using AvailabilityCallback = |
| base::Callback<bool(v8::Local<v8::Context>, const std::string& name)>; |
| |
| BindingAccessChecker(const AvailabilityCallback& is_available); |
| ~BindingAccessChecker(); |
| |
| // Returns true if the feature specified by |full_name| is available to the |
| // given |context|. |
| bool HasAccess(v8::Local<v8::Context> context, |
| const std::string& full_name) const; |
| |
| // Same as HasAccess(), but throws an exception in the |context| if it doesn't |
| // have access. |
| bool HasAccessOrThrowError(v8::Local<v8::Context> context, |
| const std::string& full_name) const; |
| |
| private: |
| AvailabilityCallback is_available_; |
| |
| DISALLOW_COPY_AND_ASSIGN(BindingAccessChecker); |
| }; |
| |
| } // namespace extensions |
| |
| #endif // EXTENSIONS_RENDERER_BINDINGS_BINDING_ACCESS_CHECKER_H_ |