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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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Chromium Code Reviews
Issue 11744014:
[Media Gallery] Move chrome/browser/media_transfer_protocol code to src/device. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src