| // Copyright 2015 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_FAVICON_CORE_FAVICON_DRIVER_IMPL_H_ |
| #define COMPONENTS_FAVICON_CORE_FAVICON_DRIVER_IMPL_H_ |
| |
| #include <memory> |
| #include <vector> |
| |
| #include "base/macros.h" |
| #include "components/favicon/core/favicon_driver.h" |
| #include "components/favicon/core/favicon_handler.h" |
| |
| class GURL; |
| |
| namespace favicon { |
| |
| class FaviconService; |
| struct FaviconURL; |
| |
| // FaviconDriverImpl is a partial implementation of FaviconDriver that allow |
| // sharing implementation between different embedder. |
| // |
| // FaviconDriverImpl works with FaviconHandlers to fetch the favicons. It |
| // fetches the given page's icons, requesting them from history backend. If the |
| // icon is not available or expired, the icon will be downloaded and saved in |
| // the history backend. |
| class FaviconDriverImpl : public FaviconDriver, |
| public FaviconHandler::Delegate { |
| public: |
| // FaviconDriver implementation. |
| void FetchFavicon(const GURL& page_url, bool is_same_document) override; |
| |
| // Returns whether the driver is waiting for a download to complete or for |
| // data from the FaviconService. Reserved for testing. |
| bool HasPendingTasksForTest(); |
| |
| protected: |
| explicit FaviconDriverImpl(FaviconService* favicon_service); |
| ~FaviconDriverImpl() override; |
| |
| // Informs FaviconService that the favicon for |url| is out of date. If |
| // |force_reload| is true, then discard information about favicon download |
| // failures. |
| void SetFaviconOutOfDateForPage(const GURL& url, bool force_reload); |
| |
| // Broadcasts new favicon URL candidates to FaviconHandlers. |
| void OnUpdateCandidates(const GURL& page_url, |
| const std::vector<FaviconURL>& candidates, |
| const GURL& manifest_url); |
| |
| protected: |
| FaviconService* favicon_service() { return favicon_service_; } |
| |
| private: |
| // KeyedService used by FaviconDriverImpl. It may be null during testing, |
| // but if it is defined, it must outlive the FaviconDriverImpl. |
| FaviconService* favicon_service_; |
| |
| // FaviconHandlers used to download the different kind of favicons. |
| std::vector<std::unique_ptr<FaviconHandler>> handlers_; |
| |
| DISALLOW_COPY_AND_ASSIGN(FaviconDriverImpl); |
| }; |
| |
| } // namespace favicon |
| |
| #endif // COMPONENTS_FAVICON_CORE_FAVICON_DRIVER_IMPL_H_ |