chrome/browser/bitmap_fetcher/bitmap_fetcher_delegate.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 CHROME_BROWSER_BITMAP_FETCHER_BITMAP_FETCHER_DELEGATE_H_
   6 #define CHROME_BROWSER_BITMAP_FETCHER_BITMAP_FETCHER_DELEGATE_H_
   7
   8 #include "url/gurl.h"
   9
  10 class SkBitmap;
  11
  12 namespace chrome {
  13
  14 // A delegate interface for users of BitmapFetcher.
  15 class BitmapFetcherDelegate {
  16  public:
  17   BitmapFetcherDelegate() {}
  18
  19   // This will be called when the bitmap has been requested, whether or not the
  20   // request succeeds.  |url| is the URL that was originally fetched so we can
  21   // match up the bitmap with a specific request.  |bitmap| may be NULL if the
  22   // image fails to be downloaded or decoded.
  23   virtual void OnFetchComplete(const GURL& url, const SkBitmap* bitmap) = 0;
  24
  25  protected:
  26   virtual ~BitmapFetcherDelegate() {}
  27
  28   DISALLOW_COPY_AND_ASSIGN(BitmapFetcherDelegate);
  29 };
  30
  31 }  // namespace chrome
  32
  33 #endif  // CHROME_BROWSER_BITMAP_FETCHER_BITMAP_FETCHER_DELEGATE_H_