src/chrome/browser/thumbnails/thumbnail_service_impl.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_THUMBNAILS_THUMBNAIL_SERVICE_IMPL_H_
   6 #define CHROME_BROWSER_THUMBNAILS_THUMBNAIL_SERVICE_IMPL_H_
   7
   8 #include "base/memory/ref_counted.h"
   9 #include "chrome/browser/history/top_sites.h"
  10 #include "chrome/browser/profiles/profile.h"
  11 #include "chrome/browser/thumbnails/thumbnail_service.h"
  12
  13 namespace base {
  14 class RefCountedMemory;
  15 }
  16
  17 namespace thumbnails {
  18
  19 // An implementation of ThumbnailService which delegates storage and most of
  20 // logic to an underlying TopSites instances.
  21 class ThumbnailServiceImpl : public ThumbnailService {
  22  public:
  23   explicit ThumbnailServiceImpl(Profile* profile);
  24
  25   // Implementation of ThumbnailService.
  26   virtual bool SetPageThumbnail(const ThumbnailingContext& context,
  27                                 const gfx::Image& thumbnail) OVERRIDE;
  28   virtual ThumbnailingAlgorithm* GetThumbnailingAlgorithm() const OVERRIDE;
  29   virtual bool GetPageThumbnail(
  30       const GURL& url,
  31       bool prefix_match,
  32       scoped_refptr<base::RefCountedMemory>* bytes) OVERRIDE;
  33   virtual bool ShouldAcquirePageThumbnail(const GURL& url) OVERRIDE;
  34
  35   // Implementation of RefcountedBrowserContextKeyedService.
  36   virtual void ShutdownOnUIThread() OVERRIDE;
  37
  38  private:
  39   virtual ~ThumbnailServiceImpl();
  40
  41   scoped_refptr<history::TopSites> top_sites_;
  42   bool use_thumbnail_retargeting_;
  43
  44   DISALLOW_COPY_AND_ASSIGN(ThumbnailServiceImpl);
  45 };
  46
  47 }  // namespace thumbnails
  48
  49 #endif  // CHROME_BROWSER_THUMBNAILS_THUMBNAIL_SERVICE_IMPL_H_