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1 // Copyright 2017 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 COMPONENTS_IMAGE_FETCHER_IOS_IOS_IMAGE_DATA_FETCHER_WRAPPER_H_ | |
6 #define COMPONENTS_IMAGE_FETCHER_IOS_IOS_IMAGE_DATA_FETCHER_WRAPPER_H_ | |
7 | |
8 #import <Foundation/Foundation.h> | |
9 | |
10 #include "base/memory/ref_counted.h" | |
11 #include "components/data_use_measurement/core/data_use_user_data.h" | |
12 #include "components/image_fetcher/image_data_fetcher.h" | |
13 | |
14 namespace base { | |
15 class TaskRunner; | |
16 } | |
17 | |
18 namespace net { | |
19 class URLRequestContextGetter; | |
20 } | |
21 | |
22 class GURL; | |
23 | |
24 namespace image_fetcher { | |
25 | |
26 // Callback that informs of the download of an image encoded in |data|. | |
27 using IOSImageDataFetcherCallback = void (^)(NSData* data); | |
28 | |
29 class IOSImageDataFetcherWrapper { | |
30 public: | |
31 using DataUseServiceName = data_use_measurement::DataUseUserData::ServiceName; | |
32 | |
33 // The TaskRunner is used to decode the image if it is WebP-encoded. | |
34 IOSImageDataFetcherWrapper( | |
35 net::URLRequestContextGetter* url_request_context_getter, | |
36 const scoped_refptr<base::TaskRunner>& task_runner); | |
37 virtual ~IOSImageDataFetcherWrapper(); | |
sdefresne
2017/02/02 10:42:05
nit: can you mark as virtual in that CL the method
gambard
2017/02/02 11:57:02
Done.
| |
38 | |
39 // Start downloading the image at the given |image_url|. The |callback| will | |
40 // be called with the downloaded image, or nil if any error happened or the | |
41 // http response header is not HTTP_OK (200). If the url is a data URL, the | |
42 // http response header is considered to be HTTP_OK. | |
43 // |callback| cannot be nil. | |
44 void FetchImageDataWebpDecoded(const GURL& image_url, | |
45 IOSImageDataFetcherCallback callback); | |
46 | |
47 // Sets a service name against which to track data usage. | |
48 void SetDataUseServiceName(DataUseServiceName data_use_service_name); | |
49 | |
50 private: | |
51 // The task runner used to decode images if necessary. | |
52 const scoped_refptr<base::TaskRunner> task_runner_; | |
53 ImageDataFetcher image_data_fetcher_; | |
54 | |
55 DISALLOW_COPY_AND_ASSIGN(IOSImageDataFetcherWrapper); | |
56 }; | |
57 | |
58 } // namespace image_fetcher | |
59 | |
60 #endif // COMPONENTS_IMAGE_FETCHER_IOS_IOS_IMAGE_DATA_FETCHER_WRAPPER_H_ | |
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