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Side by Side Diff: chrome/browser/bitmap_fetcher/bitmap_fetcher.h

Issue 931993002: Make image_decoder a Leaky LazyInstance (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Get rid of IDMap Created 5 years, 9 months ago
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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_delegate.h" 11 #include "net/url_request/url_fetcher_delegate.h"
12 #include "net/url_request/url_request.h" 12 #include "net/url_request/url_request.h"
13 #include "third_party/skia/include/core/SkBitmap.h" 13 #include "third_party/skia/include/core/SkBitmap.h"
14 #include "url/gurl.h" 14 #include "url/gurl.h"
15 15
16 namespace net { 16 namespace net {
17 class URLFetcher; 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::Delegate { 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.
(...skipping 10 matching lines...) Expand all
47 // Use accessor methods on |source| to get the results. 47 // Use accessor methods on |source| to get the results.
48 void OnURLFetchComplete(const net::URLFetcher* source) override; 48 void OnURLFetchComplete(const net::URLFetcher* source) override;
49 49
50 // This will be called when some part of the response is read. |current| 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 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). 52 // expected total size of the response (or -1 if not determined).
53 void OnURLFetchDownloadProgress(const net::URLFetcher* source, 53 void OnURLFetchDownloadProgress(const net::URLFetcher* source,
54 int64 current, 54 int64 current,
55 int64 total) override; 55 int64 total) override;
56 56
57 // Methods inherited from ImageDecoder::Delegate 57 // Methods inherited from ImageDecoder::ImageRequest
58 58
59 // Called when image is decoded. |decoder| is used to identify the image in 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 60 // case of decoding several images simultaneously. This will not be called
61 // on the UI thread. 61 // on the UI thread.
62 void OnImageDecoded(const ImageDecoder* decoder, 62 void OnImageDecoded(const SkBitmap& decoded_image) override;
63 const SkBitmap& decoded_image) override;
64 63
65 // Called when decoding image failed. 64 // Called when decoding image failed.
66 void OnDecodeImageFailed(const ImageDecoder* decoder) override; 65 void OnDecodeImageFailed() override;
67 66
68 private: 67 private:
69 // Alerts the delegate that a failure occurred. 68 // Alerts the delegate that a failure occurred.
70 void ReportFailure(); 69 void ReportFailure();
71 70
72 scoped_ptr<net::URLFetcher> url_fetcher_; 71 scoped_ptr<net::URLFetcher> url_fetcher_;
73 scoped_refptr<ImageDecoder> image_decoder_;
74 const GURL url_; 72 const GURL url_;
75 BitmapFetcherDelegate* const delegate_; 73 BitmapFetcherDelegate* const delegate_;
76 74
77 DISALLOW_COPY_AND_ASSIGN(BitmapFetcher); 75 DISALLOW_COPY_AND_ASSIGN(BitmapFetcher);
78 }; 76 };
79 77
80 } // namespace chrome 78 } // namespace chrome
81 79
82 #endif // CHROME_BROWSER_BITMAP_FETCHER_BITMAP_FETCHER_H_ 80 #endif // CHROME_BROWSER_BITMAP_FETCHER_BITMAP_FETCHER_H_
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