ios/chrome/browser/suggestions/image_fetcher_impl.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 IOS_CHROME_BROWSER_SUGGESTIONS_IMAGE_FETCHER_IMPL_H_
   6 #define IOS_CHROME_BROWSER_SUGGESTIONS_IMAGE_FETCHER_IMPL_H_
   7
   8 #include "base/callback_forward.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "components/suggestions/image_fetcher.h"
  11
  12 class GURL;
  13 class SkBitmap;
  14
  15 namespace image_fetcher {
  16 class ImageFetcher;
  17 }
  18
  19 namespace base {
  20 class SequencedWorkerPool;
  21 }
  22
  23 namespace net {
  24 class URLRequestContextGetter;
  25 }
  26
  27 namespace suggestions {
  28
  29 class ImageFetcherDelegate;
  30
  31 // A class used to fetch server images asynchronously.
  32 class ImageFetcherImpl : public suggestions::ImageFetcher {
  33  public:
  34   ImageFetcherImpl(net::URLRequestContextGetter* url_request_context,
  35                    base::SequencedWorkerPool* blocking_pool);
  36   ~ImageFetcherImpl() override;
  37
  38   void SetImageFetcherDelegate(ImageFetcherDelegate* delegate) override;
  39
  40   void StartOrQueueNetworkRequest(
  41       const GURL& url,
  42       const GURL& image_url,
  43       base::Callback<void(const GURL&, const SkBitmap*)> callback) override;
  44
  45  private:
  46   scoped_ptr<image_fetcher::ImageFetcher> imageFetcher_;
  47
  48   ImageFetcherDelegate* delegate_;
  49
  50   DISALLOW_COPY_AND_ASSIGN(ImageFetcherImpl);
  51 };
  52
  53 }  // namespace suggestions
  54
  55 #endif  // IOS_CHROME_BROWSER_SUGGESTIONS_IMAGE_FETCHER_IMPL_H_