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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 CONTENT_PUBLIC_BROWSER_BACKGROUND_FETCH_CLIENT_H_ | |
6 #define CONTENT_PUBLIC_BROWSER_BACKGROUND_FETCH_CLIENT_H_ | |
7 | |
8 #include <string> | |
9 | |
10 #include "content/common/content_export.h" | |
11 | |
12 namespace content { | |
13 | |
14 // The Background Fetch client enables the embedder to be given information | |
15 // about the active Background Fetches, for example to provide a user interface, | |
16 // and for the embedder to control the state of such fetches. | |
17 class CONTENT_EXPORT BackgroundFetchClient { | |
18 public: | |
19 // Class for access to the BackgroundFetch system. Manages in progress fetches | |
20 // and supports pause, resume, cancel, and UI update. | |
21 class CONTENT_EXPORT Delegate { | |
22 public: | |
23 // Cleans up all tasks, whether in progress or completed. | |
24 virtual void CleanupAllTasks() = 0; | |
25 | |
26 // Cancel all fetches associated with the |registration_id|. | |
27 virtual void CancelDownload(const std::string& registration_id) = 0; | |
28 | |
29 // Pause all fetches associated with the |registration_id|. | |
30 virtual void PauseDownload(const std::string& registration_id) = 0; | |
31 | |
32 // Resume any fetches associated with the |registration_id|. | |
33 virtual void ResumeDownload(const std::string& registration_id) = 0; | |
34 | |
35 protected: | |
36 virtual ~Delegate() {} | |
37 }; | |
38 | |
39 // The client will maintain a weak reference to |delegate|. The provider must | |
40 // reset the delegate back to a `nullptr` when it's being destructed. | |
41 virtual void SetDelegate(Delegate* delegate) = 0; | |
Peter Beverloo
2017/04/18 23:12:08
Please clarify in the CL description that there's
harkness
2017/04/19 09:03:41
Done.
| |
42 | |
43 protected: | |
44 virtual ~BackgroundFetchClient() {} | |
45 }; | |
46 | |
47 } // namespace content | |
48 | |
49 #endif // CONTENT_PUBLIC_BROWSER_BACKGROUND_FETCH_CLIENT_H_ | |
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