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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_BITMAP_FETCHER_H_ | 5 #ifndef CHROME_BROWSER_BITMAP_FETCHER_BITMAP_FETCHER_H_ |
6 #define CHROME_BROWSER_BITMAP_FETCHER_BITMAP_FETCHER_H_ | 6 #define CHROME_BROWSER_BITMAP_FETCHER_BITMAP_FETCHER_H_ |
7 | 7 |
8 #include "base/memory/scoped_ptr.h" | 8 #include "base/memory/scoped_ptr.h" |
9 #include "chrome/browser/bitmap_fetcher/bitmap_fetcher_delegate.h" | 9 #include "chrome/browser/bitmap_fetcher/bitmap_fetcher_delegate.h" |
10 #include "chrome/browser/image_decoder.h" | 10 #include "chrome/browser/image_decoder.h" |
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22 | 22 |
23 // Asynchrounously fetches an image from the given URL and returns the | 23 // Asynchrounously fetches an image from the given URL and returns the |
24 // decoded Bitmap to the provided BitmapFetcherDelegate. | 24 // decoded Bitmap to the provided BitmapFetcherDelegate. |
25 class BitmapFetcher : public net::URLFetcherDelegate, | 25 class BitmapFetcher : public net::URLFetcherDelegate, |
26 public ImageDecoder::ImageRequest { | 26 public ImageDecoder::ImageRequest { |
27 public: | 27 public: |
28 BitmapFetcher(const GURL& url, BitmapFetcherDelegate* delegate); | 28 BitmapFetcher(const GURL& url, BitmapFetcherDelegate* delegate); |
29 ~BitmapFetcher() override; | 29 ~BitmapFetcher() override; |
30 | 30 |
31 const GURL& url() const { return url_; } | 31 const GURL& url() const { return url_; } |
| 32 net::URLFetcher* url_fetcher() { return url_fetcher_.get(); } |
| 33 |
| 34 // Initializes internal fetcher. After this function returns url_fetcher() |
| 35 // can be accessed to configure it further (eg. add user data to request). |
| 36 // All configuration must be done before Start() is called. |
| 37 // Values for |load_flags| are defined in net/base/load_flags.h. In general, |
| 38 // |net::LOAD_NORMAL| is appropriate. Init may be called more than once in |
| 39 // some cases. If so, subsequent starts will be ignored. |
| 40 void Init(net::URLRequestContextGetter* request_context, |
| 41 const std::string& referrer, |
| 42 net::URLRequest::ReferrerPolicy referrer_policy, |
| 43 int load_flags); |
32 | 44 |
33 // Start fetching the URL with the fetcher. The delegate is notified | 45 // Start fetching the URL with the fetcher. The delegate is notified |
34 // asynchronously when done. Start may be called more than once in some | 46 // 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 | 47 // cases. If so, subsequent starts will be ignored since the operation is |
36 // already in progress. Arguments are used to configure the internal fetcher. | 48 // already in progress. |
37 // Values for |load_flags| are defined in net/base/load_flags.h. In general, | 49 void Start(); |
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 | 50 |
44 // Methods inherited from URLFetcherDelegate | 51 // Methods inherited from URLFetcherDelegate |
45 | 52 |
46 // This will be called when the URL has been fetched, successfully or not. | 53 // This will be called when the URL has been fetched, successfully or not. |
47 // Use accessor methods on |source| to get the results. | 54 // Use accessor methods on |source| to get the results. |
48 void OnURLFetchComplete(const net::URLFetcher* source) override; | 55 void OnURLFetchComplete(const net::URLFetcher* source) override; |
49 | 56 |
50 // This will be called when some part of the response is read. |current| | 57 // 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 | 58 // 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). | 59 // expected total size of the response (or -1 if not determined). |
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71 scoped_ptr<net::URLFetcher> url_fetcher_; | 78 scoped_ptr<net::URLFetcher> url_fetcher_; |
72 const GURL url_; | 79 const GURL url_; |
73 BitmapFetcherDelegate* const delegate_; | 80 BitmapFetcherDelegate* const delegate_; |
74 | 81 |
75 DISALLOW_COPY_AND_ASSIGN(BitmapFetcher); | 82 DISALLOW_COPY_AND_ASSIGN(BitmapFetcher); |
76 }; | 83 }; |
77 | 84 |
78 } // namespace chrome | 85 } // namespace chrome |
79 | 86 |
80 #endif // CHROME_BROWSER_BITMAP_FETCHER_BITMAP_FETCHER_H_ | 87 #endif // CHROME_BROWSER_BITMAP_FETCHER_BITMAP_FETCHER_H_ |
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