| // 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 COMPONENTS_DOM_DISTILLER_CORE_DISTILLER_URL_FETCHER_H_ |
| #define COMPONENTS_DOM_DISTILLER_CORE_DISTILLER_URL_FETCHER_H_ |
| |
| #include <string> |
| |
| #include "base/callback.h" |
| #include "base/macros.h" |
| |
| namespace network { |
| class SharedURLLoaderFactory; |
| class SimpleURLLoader; |
| } // namespace network |
| |
| namespace dom_distiller { |
| |
| class DistillerURLFetcher; |
| |
| // Class for creating a DistillerURLFetcher. |
| class DistillerURLFetcherFactory { |
| public: |
| DistillerURLFetcherFactory( |
| scoped_refptr<network::SharedURLLoaderFactory> url_loader_factory); |
| virtual ~DistillerURLFetcherFactory(); |
| virtual DistillerURLFetcher* CreateDistillerURLFetcher() const; |
| |
| private: |
| friend class TestDistillerURLFetcherFactory; |
| scoped_refptr<network::SharedURLLoaderFactory> url_loader_factory_; |
| }; |
| |
| // This class loads a URL, and notifies the caller when the operation |
| // completes or fails. If the request fails, an empty string will be returned. |
| class DistillerURLFetcher { |
| public: |
| explicit DistillerURLFetcher( |
| scoped_refptr<network::SharedURLLoaderFactory> url_loader_factory); |
| virtual ~DistillerURLFetcher(); |
| |
| // Indicates when a fetch is done. |
| typedef base::Callback<void(const std::string& data)> URLFetcherCallback; |
| |
| // Fetches a |url|. Notifies when the fetch is done via |callback|. |
| virtual void FetchURL(const std::string& url, |
| const URLFetcherCallback& callback); |
| |
| protected: |
| virtual std::unique_ptr<network::SimpleURLLoader> CreateURLFetcher( |
| const std::string& url); |
| |
| private: |
| void OnURLLoadComplete(std::unique_ptr<std::string> response_body); |
| |
| std::unique_ptr<network::SimpleURLLoader> url_loader_; |
| URLFetcherCallback callback_; |
| scoped_refptr<network::SharedURLLoaderFactory> url_loader_factory_; |
| DISALLOW_COPY_AND_ASSIGN(DistillerURLFetcher); |
| }; |
| |
| } // namespace dom_distiller |
| |
| #endif // COMPONENTS_DOM_DISTILLER_CORE_DISTILLER_URL_FETCHER_H_ |