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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" |
11 #include "net/url_request/url_fetcher.h" | |
11 #include "net/url_request/url_fetcher_delegate.h" | 12 #include "net/url_request/url_fetcher_delegate.h" |
12 #include "net/url_request/url_request.h" | 13 #include "net/url_request/url_request.h" |
13 #include "third_party/skia/include/core/SkBitmap.h" | 14 #include "third_party/skia/include/core/SkBitmap.h" |
14 #include "url/gurl.h" | 15 #include "url/gurl.h" |
15 | 16 |
16 namespace net { | 17 namespace net { |
17 class URLFetcher; | |
18 class URLRequestContextGetter; | 18 class URLRequestContextGetter; |
19 } // namespace net | 19 } // namespace net |
20 | 20 |
21 namespace chrome { | 21 namespace chrome { |
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 | 32 |
33 // Start fetching the URL with the fetcher. The delegate is notified | 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 | 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 | 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. | 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, | 37 // Values for |load_flags| are defined in net/base/load_flags.h. In general, |
38 // |net::LOAD_NORMAL| is appropriate. | 38 // |net::LOAD_NORMAL| is appropriate. |
39 void Start(net::URLRequestContextGetter* request_context, | 39 void Start(net::URLRequestContextGetter* request_context, |
40 const std::string& referrer, | 40 const std::string& referrer, |
41 net::URLRequest::ReferrerPolicy referrer_policy, | 41 net::URLRequest::ReferrerPolicy referrer_policy, |
42 int load_flags); | 42 int load_flags); |
43 | 43 |
44 // Like BitmapFetcher::Start above but it allows to define user data key | |
45 // and create data callback for URLFetcher it creates. | |
Theresa
2015/04/22 23:07:06
The phrasing here is a little unclear, maybe somet
| |
46 void Start(net::URLRequestContextGetter* request_context, | |
47 const std::string& referrer, | |
48 net::URLRequest::ReferrerPolicy referrer_policy, | |
49 int load_flags, | |
50 const void* user_data_key, | |
51 const net::URLFetcher::CreateDataCallback& create_data_callback); | |
52 | |
44 // Methods inherited from URLFetcherDelegate | 53 // Methods inherited from URLFetcherDelegate |
45 | 54 |
46 // This will be called when the URL has been fetched, successfully or not. | 55 // This will be called when the URL has been fetched, successfully or not. |
47 // Use accessor methods on |source| to get the results. | 56 // Use accessor methods on |source| to get the results. |
48 void OnURLFetchComplete(const net::URLFetcher* source) override; | 57 void OnURLFetchComplete(const net::URLFetcher* source) override; |
49 | 58 |
50 // This will be called when some part of the response is read. |current| | 59 // 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 | 60 // 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). | 61 // expected total size of the response (or -1 if not determined). |
53 void OnURLFetchDownloadProgress(const net::URLFetcher* source, | 62 void OnURLFetchDownloadProgress(const net::URLFetcher* source, |
54 int64 current, | 63 int64 current, |
55 int64 total) override; | 64 int64 total) override; |
56 | 65 |
57 // Methods inherited from ImageDecoder::ImageRequest | 66 // Methods inherited from ImageDecoder::ImageRequest |
58 | 67 |
59 // Called when image is decoded. |decoder| is used to identify the image in | 68 // 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 | 69 // case of decoding several images simultaneously. This will not be called |
61 // on the UI thread. | 70 // on the UI thread. |
62 void OnImageDecoded(const SkBitmap& decoded_image) override; | 71 void OnImageDecoded(const SkBitmap& decoded_image) override; |
63 | 72 |
64 // Called when decoding image failed. | 73 // Called when decoding image failed. |
65 void OnDecodeImageFailed() override; | 74 void OnDecodeImageFailed() override; |
66 | 75 |
67 private: | 76 private: |
68 // Alerts the delegate that a failure occurred. | 77 // Alerts the delegate that a failure occurred. |
69 void ReportFailure(); | 78 void ReportFailure(); |
70 | 79 |
80 scoped_ptr<net::URLFetcher> CreateURLFetcher( | |
81 net::URLRequestContextGetter* request_context, | |
82 const std::string& referrer, | |
83 net::URLRequest::ReferrerPolicy referrer_policy, | |
84 int load_flags); | |
85 | |
71 scoped_ptr<net::URLFetcher> url_fetcher_; | 86 scoped_ptr<net::URLFetcher> url_fetcher_; |
72 const GURL url_; | 87 const GURL url_; |
73 BitmapFetcherDelegate* const delegate_; | 88 BitmapFetcherDelegate* const delegate_; |
74 | 89 |
75 DISALLOW_COPY_AND_ASSIGN(BitmapFetcher); | 90 DISALLOW_COPY_AND_ASSIGN(BitmapFetcher); |
76 }; | 91 }; |
77 | 92 |
78 } // namespace chrome | 93 } // namespace chrome |
79 | 94 |
80 #endif // CHROME_BROWSER_BITMAP_FETCHER_BITMAP_FETCHER_H_ | 95 #endif // CHROME_BROWSER_BITMAP_FETCHER_BITMAP_FETCHER_H_ |
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