components/suggestions/image_manager.h

   1 // Copyright 2014 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 COMPONENTS_SUGGESTIONS_IMAGE_MANAGER_H_
   6 #define COMPONENTS_SUGGESTIONS_IMAGE_MANAGER_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/callback.h"
  10 #include "components/suggestions/proto/suggestions.pb.h"
  11 #include "ui/gfx/image/image_skia.h"
  12 #include "url/gurl.h"
  13
  14 namespace suggestions {
  15
  16 // An interface to retrieve images related to a specific URL.
  17 class ImageManager {
  18  public:
  19   ImageManager() {}
  20   virtual ~ImageManager() {}
  21
  22   // (Re)Initializes states using data received from a SuggestionService. We're
  23   // not doing this in the constructor because an instance may be long-lived.
  24   virtual void Initialize(const SuggestionsProfile& suggestions) = 0;
  25
  26   // Retrieves stored image for website |url| asynchronously. Calls |callback|
  27   // with Bitmap pointer if found, and NULL otherwise.
  28   virtual void GetImageForURL(
  29       const GURL& url,
  30       base::Callback<void(const GURL&, const SkBitmap*)> callback) = 0;
  31
  32  private:
  33   DISALLOW_COPY_AND_ASSIGN(ImageManager);
  34 };
  35
  36 }  // namespace suggestions
  37
  38 #endif  // COMPONENTS_SUGGESTIONS_IMAGE_MANAGER_H_