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1 // Copyright 2015 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_BROWSER_NOTIFICATIONS_NOTIFICATION_ID_GENERATOR_H_ | |
6 #define CONTENT_BROWSER_NOTIFICATIONS_NOTIFICATION_ID_GENERATOR_H_ | |
7 | |
8 #include <stdint.h> | |
9 #include <string> | |
10 | |
11 #include "content/common/content_export.h" | |
12 | |
13 class GURL; | |
14 | |
15 namespace content { | |
16 | |
17 class BrowserContext; | |
18 | |
19 // Generates deterministic notification ids for Web Notifications. | |
20 // | |
21 // The notification id must be deterministic for a given browser context, origin | |
22 // and tag, when the tag is non-empty, or unique for the given notification when | |
johnme
2015/05/27 18:18:35
Please clearly explain that calling new Notificati
Peter Beverloo
2015/05/28 12:51:44
Done.
| |
23 // the tag is empty. For non-persistent notifications, the uniqueness will be | |
24 // based on the render process id. For persistent notifications, the generated | |
25 // id will be globally unique for the lifetime of the notification database. | |
26 // | |
27 // The notification id will be used by the notification service for determining | |
28 // when to replace notifications, and as the unique identifier when a | |
29 // notification has to be closed programmatically. | |
30 // | |
31 // It is important to note that, for persistent notifications, the generated | |
32 // notification id can outlive the browser process responsible for creating it. | |
33 class CONTENT_EXPORT NotificationIdGenerator { | |
34 public: | |
35 NotificationIdGenerator(BrowserContext* browser_context, | |
36 int render_process_id); | |
37 ~NotificationIdGenerator(); | |
38 | |
39 // Generates an id for a persistent notification given the notification's | |
40 // origin, tag and persistent notification id. The persistent notification id | |
41 // will have been created by the persistent notification database. | |
42 std::string GenerateForPersistentNotification( | |
43 const GURL& origin, | |
44 const std::string& tag, | |
45 int64_t persistent_notification_id) const; | |
46 | |
47 // Generates an id for a non-persistent notification given the notification's | |
48 // origin, tag and non-persistent notification id. The non-persistent | |
49 // notification id will have created by the renderer with |render_process_id|. | |
50 std::string GenerateForNonPersistentNotification( | |
51 const GURL& origin, | |
52 const std::string& tag, | |
53 int non_persistent_notification_id) const; | |
54 | |
55 private: | |
56 // The NotificationMessageFilter that owns |this| will outlive the context. | |
57 BrowserContext* browser_context_; | |
58 | |
59 int render_process_id_; | |
60 }; | |
61 | |
62 } // namespace context | |
63 | |
64 #endif // CONTENT_BROWSER_NOTIFICATIONS_NOTIFICATION_ID_GENERATOR_H_ | |
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