Chromium Code Reviews Chromium Code Reviews
Issue 319623003:
[AiS] ImageService (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master| OLD | NEW |
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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef CHROME_BROWSER_BITMAP_FETCHER_H_ | 5 #include "chrome/browser/bitmap_fetcher/bitmap_fetcher.h" |
|
tfarina
2014/12/10 17:46:36
Weird that rietveld marked this file as Deleted. B
| |
| 6 #define CHROME_BROWSER_BITMAP_FETCHER_H_ | |
| 7 | |
| 8 #include "base/memory/scoped_ptr.h" | |
| 9 #include "chrome/browser/bitmap_fetcher_delegate.h" | |
| 10 #include "chrome/browser/image_decoder.h" | |
| 11 #include "net/url_request/url_fetcher_delegate.h" | |
| 12 #include "net/url_request/url_request.h" | |
| 13 #include "third_party/skia/include/core/SkBitmap.h" | |
| 14 #include "url/gurl.h" | |
| 15 | |
| 16 namespace net { | |
| 17 class URLFetcher; | |
| 18 class URLRequestContextGetter; | |
| 19 } // namespace net | |
| 20 | |
| 21 namespace chrome { | |
| 22 | |
| 23 // Asynchrounously fetches an image from the given URL and returns the | |
| 24 // decoded Bitmap to the provided BitmapFetcherDelegate. | |
| 25 class BitmapFetcher : public net::URLFetcherDelegate, | |
| 26 public ImageDecoder::Delegate { | |
| 27 public: | |
| 28 BitmapFetcher(const GURL& url, BitmapFetcherDelegate* delegate); | |
| 29 virtual ~BitmapFetcher(); | |
| 30 | |
| 31 const GURL& url() const { return url_; } | |
| 32 | |
| 33 // Start fetching the URL with the fetcher. The delegate is notified | |
| 34 // asynchronously when done. Start may be called more than once in some | |
| 35 // cases. If so, subsequent starts will be ignored since the operation is | |
| 36 // already in progress. Arguments are used to configure the internal fetcher. | |
| 37 // Values for |load_flags| are defined in net/base/load_flags.h. In general, | |
| 38 // |net::LOAD_NORMAL| is appropriate. | |
| 39 void Start(net::URLRequestContextGetter* request_context, | |
| 40 const std::string& referrer, | |
| 41 net::URLRequest::ReferrerPolicy referrer_policy, | |
| 42 int load_flags); | |
| 43 | |
| 44 // Methods inherited from URLFetcherDelegate | |
| 45 | |
| 46 // This will be called when the URL has been fetched, successfully or not. | |
| 47 // Use accessor methods on |source| to get the results. | |
| 48 virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE; | |
| 49 | |
| 50 // This will be called when some part of the response is read. |current| | |
| 51 // denotes the number of bytes received up to the call, and |total| is the | |
| 52 // expected total size of the response (or -1 if not determined). | |
| 53 virtual void OnURLFetchDownloadProgress(const net::URLFetcher* source, | |
| 54 int64 current, | |
| 55 int64 total) OVERRIDE; | |
| 56 | |
| 57 // Methods inherited from ImageDecoder::Delegate | |
| 58 | |
| 59 // Called when image is decoded. |decoder| is used to identify the image in | |
| 60 // case of decoding several images simultaneously. This will not be called | |
| 61 // on the UI thread. | |
| 62 virtual void OnImageDecoded(const ImageDecoder* decoder, | |
| 63 const SkBitmap& decoded_image) OVERRIDE; | |
| 64 | |
| 65 // Called when decoding image failed. | |
| 66 virtual void OnDecodeImageFailed(const ImageDecoder* decoder) OVERRIDE; | |
| 67 | |
| 68 private: | |
| 69 // Alerts the delegate that a failure occurred. | |
| 70 void ReportFailure(); | |
| 71 | |
| 72 scoped_ptr<net::URLFetcher> url_fetcher_; | |
| 73 scoped_refptr<ImageDecoder> image_decoder_; | |
| 74 const GURL url_; | |
| 75 BitmapFetcherDelegate* const delegate_; | |
| 76 | |
| 77 DISALLOW_COPY_AND_ASSIGN(BitmapFetcher); | |
| 78 }; | |
| 79 | |
| 80 } // namespace chrome | |
| 81 | |
| 82 #endif // CHROME_BROWSER_BITMAP_FETCHER_H_ | |
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