| // Copyright 2014 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 CHROME_BROWSER_UI_WEBUI_CHROMEOS_IMAGE_SOURCE_H_ |
| #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_IMAGE_SOURCE_H_ |
| |
| #include <string> |
| |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/weak_ptr.h" |
| #include "content/public/browser/url_data_source.h" |
| |
| namespace base { |
| class SequencedTaskRunner; |
| } |
| |
| // TODO(michaelpg): Remove dependency on user_manager. |
| namespace user_manager { |
| class UserImage; |
| } |
| |
| namespace chromeos { |
| |
| // TODO(michaelpg): Generalize UserImageLoader for classes like ImageSource. |
| class UserImageLoader; |
| |
| // Data source that reads and decodes an image from the RO file system. |
| class ImageSource : public content::URLDataSource { |
| public: |
| ImageSource(); |
| ~ImageSource() override; |
| |
| // content::URLDataSource implementation. |
| std::string GetSource() const override; |
| void StartDataRequest( |
| const std::string& path, |
| int render_process_id, |
| int render_frame_id, |
| const content::URLDataSource::GotDataCallback& got_data_callback) |
| override; |
| |
| std::string GetMimeType(const std::string& path) const override; |
| |
| private: |
| // Checks whether we have allowed the image to be loaded. |
| bool IsWhitelisted(const std::string& path) const; |
| |
| // The background task runner on which file I/O and image decoding are done. |
| scoped_refptr<base::SequencedTaskRunner> task_runner_; |
| |
| scoped_refptr<UserImageLoader> image_loader_; |
| |
| base::WeakPtrFactory<ImageSource> weak_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ImageSource); |
| }; |
| |
| } // namespace chromeos |
| |
| #endif // CHROME_BROWSER_UI_WEBUI_CHROMEOS_IMAGE_SOURCE_H_ |