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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 CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_SAFE_AUDIO_VIDEO_CHECKER_H_ | 5 #ifndef CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_SAFE_AUDIO_VIDEO_CHECKER_H_ |
6 #define CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_SAFE_AUDIO_VIDEO_CHECKER_H_ | 6 #define CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_SAFE_AUDIO_VIDEO_CHECKER_H_ |
7 | 7 |
8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
9 #include "base/callback_forward.h" | 9 #include "base/callback_forward.h" |
10 #include "base/files/file.h" | 10 #include "base/files/file.h" |
11 #include "base/memory/weak_ptr.h" | 11 #include "base/memory/weak_ptr.h" |
12 #include "content/public/browser/utility_process_host_client.h" | 12 #include "content/public/browser/utility_process_host_client.h" |
13 #include "webkit/browser/fileapi/copy_or_move_file_validator.h" | 13 #include "storage/browser/fileapi/copy_or_move_file_validator.h" |
14 | 14 |
15 namespace content { | 15 namespace content { |
16 class UtilityProcessHost; | 16 class UtilityProcessHost; |
17 } | 17 } |
18 | 18 |
19 // Uses a utility process to validate a media file. If the callback returns | 19 // Uses a utility process to validate a media file. If the callback returns |
20 // File::FILE_OK, then the file appears to be a valid media file. This does | 20 // File::FILE_OK, then the file appears to be a valid media file. This does |
21 // not attempt to decode the entire file, which may take a considerable amount | 21 // not attempt to decode the entire file, which may take a considerable amount |
22 // of time. This class may be constructed on any thread, but should run on the | 22 // of time. This class may be constructed on any thread, but should run on the |
23 // IO thread. | 23 // IO thread. |
24 class SafeAudioVideoChecker : public content::UtilityProcessHostClient { | 24 class SafeAudioVideoChecker : public content::UtilityProcessHostClient { |
25 public: | 25 public: |
26 // Takes responsibility for closing |file|. | 26 // Takes responsibility for closing |file|. |
27 SafeAudioVideoChecker( | 27 SafeAudioVideoChecker( |
28 base::File file, | 28 base::File file, |
29 const fileapi::CopyOrMoveFileValidator::ResultCallback& callback); | 29 const storage::CopyOrMoveFileValidator::ResultCallback& callback); |
30 | 30 |
31 // Must be called on the IO thread. | 31 // Must be called on the IO thread. |
32 void Start(); | 32 void Start(); |
33 | 33 |
34 private: | 34 private: |
35 enum State { | 35 enum State { |
36 INITIAL_STATE, | 36 INITIAL_STATE, |
37 PINGED_STATE, | 37 PINGED_STATE, |
38 STARTED_STATE, | 38 STARTED_STATE, |
39 FINISHED_STATE | 39 FINISHED_STATE |
40 }; | 40 }; |
41 | 41 |
42 virtual ~SafeAudioVideoChecker(); | 42 virtual ~SafeAudioVideoChecker(); |
43 | 43 |
44 // Starts validation once the utility process has been started. | 44 // Starts validation once the utility process has been started. |
45 virtual void OnProcessStarted(); | 45 virtual void OnProcessStarted(); |
46 | 46 |
47 // Notification of the result from the utility process. | 47 // Notification of the result from the utility process. |
48 void OnCheckingFinished(bool valid); | 48 void OnCheckingFinished(bool valid); |
49 | 49 |
50 // UtilityProcessHostClient implementation. | 50 // UtilityProcessHostClient implementation. |
51 virtual void OnProcessCrashed(int exit_code) OVERRIDE; | 51 virtual void OnProcessCrashed(int exit_code) OVERRIDE; |
52 virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; | 52 virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; |
53 | 53 |
54 State state_; | 54 State state_; |
55 | 55 |
56 base::File file_; | 56 base::File file_; |
57 | 57 |
58 const fileapi::CopyOrMoveFileValidator::ResultCallback callback_; | 58 const storage::CopyOrMoveFileValidator::ResultCallback callback_; |
59 | 59 |
60 base::WeakPtr<content::UtilityProcessHost> utility_process_host_; | 60 base::WeakPtr<content::UtilityProcessHost> utility_process_host_; |
61 | 61 |
62 DISALLOW_COPY_AND_ASSIGN(SafeAudioVideoChecker); | 62 DISALLOW_COPY_AND_ASSIGN(SafeAudioVideoChecker); |
63 }; | 63 }; |
64 | 64 |
65 #endif // CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_SAFE_AUDIO_VIDEO_CHECKER_H_ | 65 #endif // CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_SAFE_AUDIO_VIDEO_CHECKER_H_ |
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