| // 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_THUMBNAILS_THUMBNAIL_LIST_SOURCE_H_ |
| #define CHROME_BROWSER_THUMBNAILS_THUMBNAIL_LIST_SOURCE_H_ |
| |
| #include <string> |
| |
| #include "base/basictypes.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/weak_ptr.h" |
| #include "chrome/browser/history/history_types.h" |
| #include "content/public/browser/url_data_source.h" |
| |
| class Profile; |
| |
| namespace base { |
| class RefCountedMemory; |
| } |
| |
| namespace thumbnails { |
| class ThumbnailService; |
| } |
| |
| // ThumbnailListSource renders a webpage to list all thumbnails stored in |
| // TopSites, along with all associated URLs. The thumbnail images are embedded |
| // into the HTML via Base64, so we can easily produce a dump of TopSites and |
| // the thumbnails it stores. |
| class ThumbnailListSource : public content::URLDataSource { |
| public: |
| explicit ThumbnailListSource(Profile* profile); |
| |
| // content::URLDataSource implementation. |
| virtual std::string GetSource() const OVERRIDE; |
| virtual void StartDataRequest( |
| const std::string& path, |
| int render_process_id, |
| int render_frame_id, |
| const content::URLDataSource::GotDataCallback& callback) OVERRIDE; |
| virtual std::string GetMimeType(const std::string& path) const OVERRIDE; |
| virtual base::MessageLoop* MessageLoopForRequestPath( |
| const std::string& path) const OVERRIDE; |
| virtual bool ShouldServiceRequest( |
| const net::URLRequest* request) const OVERRIDE; |
| virtual bool ShouldReplaceExistingSource() const OVERRIDE; |
| |
| private: |
| virtual ~ThumbnailListSource(); |
| |
| void OnMostVisitedURLsAvailable( |
| const content::URLDataSource::GotDataCallback& callback, |
| const history::MostVisitedURLList& mvurl_list); |
| |
| // ThumbnailService. |
| scoped_refptr<thumbnails::ThumbnailService> thumbnail_service_; |
| |
| // Only used when servicing requests on the UI thread. |
| Profile* const profile_; |
| |
| // For callbacks may be run after destruction. |
| base::WeakPtrFactory<ThumbnailListSource> weak_ptr_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ThumbnailListSource); |
| }; |
| |
| |
| #endif // CHROME_BROWSER_THUMBNAILS_THUMBNAIL_LIST_SOURCE_H_ |