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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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 CONTENT_BROWSER_MESSAGE_PORT_MESSAGE_FILTER_H_ | 5 #ifndef CONTENT_BROWSER_MESSAGE_PORT_MESSAGE_FILTER_H_ |
6 #define CONTENT_BROWSER_MESSAGE_PORT_MESSAGE_FILTER_H_ | 6 #define CONTENT_BROWSER_MESSAGE_PORT_MESSAGE_FILTER_H_ |
7 | 7 |
8 #include "base/callback.h" | 8 #include "base/callback.h" |
9 #include "content/common/content_export.h" | |
10 #include "content/public/browser/browser_message_filter.h" | 9 #include "content/public/browser/browser_message_filter.h" |
11 | 10 |
12 namespace content { | 11 namespace content { |
13 | 12 |
14 // Filter for MessagePort related IPC messages (creating and destroying a | 13 // Filter for MessagePort related IPC messages (creating and destroying a |
15 // MessagePort, sending a message via a MessagePort etc). | 14 // MessagePort, sending a message via a MessagePort etc). |
16 class CONTENT_EXPORT MessagePortMessageFilter : public BrowserMessageFilter { | 15 class MessagePortMessageFilter : public BrowserMessageFilter { |
17 public: | 16 public: |
18 typedef base::Callback<int(void)> NextRoutingIDCallback; | 17 typedef base::Callback<int(void)> NextRoutingIDCallback; |
19 | 18 |
20 // |next_routing_id| is owned by this object. It can be used up until | 19 // |next_routing_id| is owned by this object. It can be used up until |
21 // OnChannelClosing. | 20 // OnChannelClosing. |
22 explicit MessagePortMessageFilter(const NextRoutingIDCallback& callback); | 21 explicit MessagePortMessageFilter(const NextRoutingIDCallback& callback); |
23 | 22 |
24 // BrowserMessageFilter implementation. | 23 // BrowserMessageFilter implementation. |
25 virtual void OnChannelClosing() OVERRIDE; | 24 virtual void OnChannelClosing() OVERRIDE; |
26 virtual bool OnMessageReceived(const IPC::Message& message, | 25 virtual bool OnMessageReceived(const IPC::Message& message, |
27 bool* message_was_ok) OVERRIDE; | 26 bool* message_was_ok) OVERRIDE; |
28 virtual void OnDestruct() const OVERRIDE; | 27 virtual void OnDestruct() const OVERRIDE; |
29 | 28 |
30 int GetNextRoutingID(); | 29 int GetNextRoutingID(); |
31 | 30 |
32 protected: | |
33 // This is protected, so we can define sub classes for testing. | |
34 virtual ~MessagePortMessageFilter(); | |
35 | |
36 private: | 31 private: |
37 friend class BrowserThread; | 32 friend class BrowserThread; |
38 friend class base::DeleteHelper<MessagePortMessageFilter>; | 33 friend class base::DeleteHelper<MessagePortMessageFilter>; |
39 | 34 |
| 35 virtual ~MessagePortMessageFilter(); |
| 36 |
40 // Message handlers. | 37 // Message handlers. |
41 void OnCreateMessagePort(int* route_id, int* message_port_id); | 38 void OnCreateMessagePort(int* route_id, int* message_port_id); |
42 | 39 |
43 // This is guaranteed to be valid until OnChannelClosing is invoked, and it's | 40 // This is guaranteed to be valid until OnChannelClosing is invoked, and it's |
44 // not used after. | 41 // not used after. |
45 NextRoutingIDCallback next_routing_id_; | 42 NextRoutingIDCallback next_routing_id_; |
46 | 43 |
47 DISALLOW_IMPLICIT_CONSTRUCTORS(MessagePortMessageFilter); | 44 DISALLOW_IMPLICIT_CONSTRUCTORS(MessagePortMessageFilter); |
48 }; | 45 }; |
49 | 46 |
50 } // namespace content | 47 } // namespace content |
51 | 48 |
52 #endif // CONTENT_BROWSER_WORKER_MESSAGE_FILTER_H_ | 49 #endif // CONTENT_BROWSER_WORKER_MESSAGE_FILTER_H_ |
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