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1 // Copyright (c) 2012 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_COMMON_FILE_SYSTEM_FILE_SYSTEM_DISPATCHER_H_ | |
6 #define CONTENT_COMMON_FILE_SYSTEM_FILE_SYSTEM_DISPATCHER_H_ | |
7 | |
8 #include <string> | |
9 #include <vector> | |
10 | |
11 #include "base/basictypes.h" | |
12 #include "base/file_util_proxy.h" | |
13 #include "base/id_map.h" | |
14 #include "base/process.h" | |
15 #include "ipc/ipc_channel.h" | |
16 #include "ipc/ipc_message.h" | |
17 #include "ipc/ipc_platform_file.h" | |
18 #include "webkit/fileapi/file_system_callback_dispatcher.h" | |
19 #include "webkit/fileapi/file_system_types.h" | |
20 | |
21 namespace base { | |
22 struct PlatformFileInfo; | |
23 } | |
24 | |
25 class FilePath; | |
26 class GURL; | |
27 | |
28 // Dispatches and sends file system related messages sent to/from a child | |
29 // process from/to the main browser process. There is one instance | |
30 // per child process. Messages are dispatched on the main child thread. | |
31 class FileSystemDispatcher : public IPC::Channel::Listener { | |
32 public: | |
33 FileSystemDispatcher(); | |
34 virtual ~FileSystemDispatcher(); | |
35 | |
36 // IPC::Channel::Listener implementation. | |
37 virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE; | |
38 | |
39 bool OpenFileSystem(const GURL& origin_url, | |
40 fileapi::FileSystemType type, | |
41 long long size, | |
42 bool create, | |
43 fileapi::FileSystemCallbackDispatcher* dispatcher); | |
44 bool Move(const GURL& src_path, | |
45 const GURL& dest_path, | |
46 fileapi::FileSystemCallbackDispatcher* dispatcher); | |
47 bool Copy(const GURL& src_path, | |
48 const GURL& dest_path, | |
49 fileapi::FileSystemCallbackDispatcher* dispatcher); | |
50 bool Remove(const GURL& path, | |
51 bool recursive, | |
52 fileapi::FileSystemCallbackDispatcher* dispatcher); | |
53 bool ReadMetadata(const GURL& path, | |
54 fileapi::FileSystemCallbackDispatcher* dispatcher); | |
55 bool Create(const GURL& path, | |
56 bool exclusive, | |
57 bool is_directory, | |
58 bool recursive, | |
59 fileapi::FileSystemCallbackDispatcher* dispatcher); | |
60 bool Exists(const GURL& path, | |
61 bool for_directory, | |
62 fileapi::FileSystemCallbackDispatcher* dispatcher); | |
63 bool ReadDirectory(const GURL& path, | |
64 fileapi::FileSystemCallbackDispatcher* dispatcher); | |
65 bool Truncate(const GURL& path, | |
66 int64 offset, | |
67 int* request_id_out, | |
68 fileapi::FileSystemCallbackDispatcher* dispatcher); | |
69 bool Write(const GURL& path, | |
70 const GURL& blob_url, | |
71 int64 offset, | |
72 int* request_id_out, | |
73 fileapi::FileSystemCallbackDispatcher* dispatcher); | |
74 bool Cancel(int request_id_to_cancel, | |
75 fileapi::FileSystemCallbackDispatcher* dispatcher); | |
76 bool TouchFile(const GURL& file_path, | |
77 const base::Time& last_access_time, | |
78 const base::Time& last_modified_time, | |
79 fileapi::FileSystemCallbackDispatcher* dispatcher); | |
80 | |
81 // This returns a raw open PlatformFile, unlike the above, which are | |
82 // self-contained operations. | |
83 bool OpenFile(const GURL& file_path, | |
84 int file_flags, // passed to FileUtilProxy::CreateOrOpen | |
85 fileapi::FileSystemCallbackDispatcher* dispatcher); | |
86 | |
87 bool CreateSnapshotFile(const GURL& blod_url, | |
88 const GURL& file_path, | |
89 fileapi::FileSystemCallbackDispatcher* dispatcher); | |
90 private: | |
91 // Message handlers. | |
92 void OnDidOpenFileSystem(int request_id, | |
93 const std::string& name, | |
94 const GURL& root); | |
95 void OnDidSucceed(int request_id); | |
96 void OnDidReadMetadata(int request_id, | |
97 const base::PlatformFileInfo& file_info, | |
98 const FilePath& platform_path); | |
99 void OnDidReadDirectory( | |
100 int request_id, | |
101 const std::vector<base::FileUtilProxy::Entry>& entries, | |
102 bool has_more); | |
103 void OnDidFail(int request_id, base::PlatformFileError error_code); | |
104 void OnDidWrite(int request_id, int64 bytes, bool complete); | |
105 void OnDidOpenFile( | |
106 int request_id, | |
107 IPC::PlatformFileForTransit file); | |
108 | |
109 IDMap<fileapi::FileSystemCallbackDispatcher, IDMapOwnPointer> dispatchers_; | |
110 | |
111 DISALLOW_COPY_AND_ASSIGN(FileSystemDispatcher); | |
112 }; | |
113 | |
114 #endif // CONTENT_COMMON_FILE_SYSTEM_FILE_SYSTEM_DISPATCHER_H_ | |
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