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Side by Side Diff: chrome/browser/media_transfer_protocol/media_transfer_protocol_daemon_client.h

Issue 11744030: Try 2 [Media Gallery] Move chrome/browser/media_transfer_protocol code to src/device. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Fixed gyp dependencies. Created 7 years, 11 months ago
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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 // Client code to talk to the Media Transfer Protocol daemon. The MTP daemon is
6 // responsible for communicating with PTP / MTP capable devices like cameras
7 // and smartphones.
8
9 #ifndef CHROME_BROWSER_MEDIA_TRANSFER_PROTOCOL_MEDIA_TRANSFER_PROTOCOL_DAEMON_CL IENT_H_
10 #define CHROME_BROWSER_MEDIA_TRANSFER_PROTOCOL_MEDIA_TRANSFER_PROTOCOL_DAEMON_CL IENT_H_
11
12 #include <string>
13 #include <vector>
14
15 #include "base/basictypes.h"
16 #include "base/callback.h"
17 #include "build/build_config.h"
18
19 #if !defined(OS_LINUX)
20 #error "Only used on Linux and ChromeOS"
21 #endif
22
23 class MtpFileEntry;
24 class MtpStorageInfo;
25
26 namespace dbus {
27 class Bus;
28 }
29
30 namespace chrome {
31
32 // A class to make the actual DBus calls for mtpd service.
33 // This class only makes calls, result/error handling should be done
34 // by callbacks.
35 class MediaTransferProtocolDaemonClient {
36 public:
37 // A callback to be called when DBus method call fails.
38 typedef base::Callback<void()> ErrorCallback;
39
40 // A callback to handle the result of EnumerateAutoMountableDevices.
41 // The argument is the enumerated storage names.
42 typedef base::Callback<void(const std::vector<std::string>& storage_names)
43 > EnumerateStoragesCallback;
44
45 // A callback to handle the result of GetStorageInfo.
46 // The argument is the information about the specified storage.
47 typedef base::Callback<void(const MtpStorageInfo& storage_info)
48 > GetStorageInfoCallback;
49
50 // A callback to handle the result of OpenStorage.
51 // The argument is the returned handle.
52 typedef base::Callback<void(const std::string& handle)> OpenStorageCallback;
53
54 // A callback to handle the result of CloseStorage.
55 typedef base::Callback<void()> CloseStorageCallback;
56
57 // A callback to handle the result of ReadDirectoryByPath/Id.
58 // The argument is a vector of file entries.
59 typedef base::Callback<void(const std::vector<MtpFileEntry>& file_entries)
60 > ReadDirectoryCallback;
61
62 // A callback to handle the result of ReadFileChunkByPath/Id.
63 // The argument is a string containing the file data.
64 typedef base::Callback<void(const std::string& data)> ReadFileCallback;
65
66 // A callback to handle the result of GetFileInfoByPath/Id.
67 // The argument is a file entry.
68 typedef base::Callback<void(const MtpFileEntry& file_entry)
69 > GetFileInfoCallback;
70
71 // A callback to handle storage attach/detach events.
72 // The first argument is true for attach, false for detach.
73 // The second argument is the storage name.
74 typedef base::Callback<void(bool is_attach,
75 const std::string& storage_name)
76 > MTPStorageEventHandler;
77
78 virtual ~MediaTransferProtocolDaemonClient();
79
80 // Calls EnumerateStorages method. |callback| is called after the
81 // method call succeeds, otherwise, |error_callback| is called.
82 virtual void EnumerateStorages(
83 const EnumerateStoragesCallback& callback,
84 const ErrorCallback& error_callback) = 0;
85
86 // Calls GetStorageInfo method. |callback| is called after the method call
87 // succeeds, otherwise, |error_callback| is called.
88 virtual void GetStorageInfo(const std::string& storage_name,
89 const GetStorageInfoCallback& callback,
90 const ErrorCallback& error_callback) = 0;
91
92 // Calls OpenStorage method. |callback| is called after the method call
93 // succeeds, otherwise, |error_callback| is called.
94 // OpenStorage returns a handle in |callback|.
95 virtual void OpenStorage(const std::string& storage_name,
96 const std::string& mode,
97 const OpenStorageCallback& callback,
98 const ErrorCallback& error_callback) = 0;
99
100 // Calls CloseStorage method. |callback| is called after the method call
101 // succeeds, otherwise, |error_callback| is called.
102 // |handle| comes from a OpenStorageCallback.
103 virtual void CloseStorage(const std::string& handle,
104 const CloseStorageCallback& callback,
105 const ErrorCallback& error_callback) = 0;
106
107 // Calls ReadDirectoryByPath method. |callback| is called after the method
108 // call succeeds, otherwise, |error_callback| is called.
109 virtual void ReadDirectoryByPath(const std::string& handle,
110 const std::string& path,
111 const ReadDirectoryCallback& callback,
112 const ErrorCallback& error_callback) = 0;
113
114 // Calls ReadDirectoryById method. |callback| is called after the method
115 // call succeeds, otherwise, |error_callback| is called.
116 // |file_id| is a MTP-device specific id for a file.
117 virtual void ReadDirectoryById(const std::string& handle,
118 uint32 file_id,
119 const ReadDirectoryCallback& callback,
120 const ErrorCallback& error_callback) = 0;
121
122 // Calls ReadFileChunkByPath method. |callback| is called after the method
123 // call succeeds, otherwise, |error_callback| is called.
124 // |bytes_to_read| cannot exceed 1 MiB.
125 virtual void ReadFileChunkByPath(const std::string& handle,
126 const std::string& path,
127 uint32 offset,
128 uint32 bytes_to_read,
129 const ReadFileCallback& callback,
130 const ErrorCallback& error_callback) = 0;
131
132 // TODO(thestig) Remove this in the near future if we don't see anyone using
133 // it.
134 // Calls ReadFilePathById method. |callback| is called after the method call
135 // succeeds, otherwise, |error_callback| is called.
136 // |file_id| is a MTP-device specific id for a file.
137 // |bytes_to_read| cannot exceed 1 MiB.
138 virtual void ReadFileChunkById(const std::string& handle,
139 uint32 file_id,
140 uint32 offset,
141 uint32 bytes_to_read,
142 const ReadFileCallback& callback,
143 const ErrorCallback& error_callback) = 0;
144
145 // Calls GetFileInfoByPath method. |callback| is called after the method
146 // call succeeds, otherwise, |error_callback| is called.
147 virtual void GetFileInfoByPath(const std::string& handle,
148 const std::string& path,
149 const GetFileInfoCallback& callback,
150 const ErrorCallback& error_callback) = 0;
151
152 // Calls GetFileInfoById method. |callback| is called after the method
153 // call succeeds, otherwise, |error_callback| is called.
154 // |file_id| is a MTP-device specific id for a file.
155 virtual void GetFileInfoById(const std::string& handle,
156 uint32 file_id,
157 const GetFileInfoCallback& callback,
158 const ErrorCallback& error_callback) = 0;
159
160 // Registers given callback for events.
161 // |storage_event_handler| is called when a mtp storage attach or detach
162 // signal is received.
163 virtual void SetUpConnections(const MTPStorageEventHandler& handler) = 0;
164
165 // Factory function, creates a new instance and returns ownership.
166 // For normal usage, set |is_stub| to false.
167 static MediaTransferProtocolDaemonClient* Create(dbus::Bus* bus,
168 bool is_stub);
169
170 protected:
171 // Create() should be used instead.
172 MediaTransferProtocolDaemonClient();
173
174 private:
175 DISALLOW_COPY_AND_ASSIGN(MediaTransferProtocolDaemonClient);
176 };
177
178 } // namespace chrome
179
180 #endif // CHROME_BROWSER_MEDIA_TRANSFER_PROTOCOL_MEDIA_TRANSFER_PROTOCOL_DAEMON _CLIENT_H_
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