2 // Open Service Platform
3 // Copyright (c) 2012 Samsung Electronics Co., Ltd.
5 // Licensed under the Apache License, Version 2.0 (the License);
6 // you may not use this file except in compliance with the License.
7 // You may obtain a copy of the License at
9 // http://www.apache.org/licenses/LICENSE-2.0
11 // Unless required by applicable law or agreed to in writing, software
12 // distributed under the License is distributed on an "AS IS" BASIS,
13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 // See the License for the specific language governing permissions and
15 // limitations under the License.
18 * @file FCntDownloadManager.h
19 * @brief This is the header file for the %DownloadManager class.
21 * This header file contains the declarations of the %DownloadManager class.
23 #ifndef _FCNT_DOWNLOAD_MANAGER_H_
24 #define _FCNT_DOWNLOAD_MANAGER_H_
26 #include <FBaseResult.h>
27 #include <FBaseString.h>
28 #include <FCntTypes.h>
31 namespace Tizen { namespace Content
34 class DownloadRequest;
35 class IDownloadListener;
38 * @class DownloadManager
39 * @brief This class provides methods to handle HTTP downloads.
43 * @final This class is not intended for extension.
45 * The %DownloadManager class provides methods to handle HTTP downloads. A download request consists of a URL and a destination path; of which the URL is mandatory for downloading content. If the destination path is not specified, the content is downloaded to a default download storage that can be obtained with the System::Environment::GetDefaultDownloadPath() method.
46 * This class conducts the download in the background and calls the Start() method that takes care of HTTP connections. @n
47 * The download operation can be:
48 * - Paused by calling the Pause() method
49 * - Resumed by calling the Resume() method
50 * - Cancelled by calling the Cancel() method
51 * Depending on how the download operation is terminated the following methods are called:
52 * - IDownloadListener::OnDownloadCanceled() when the download is cancelled
53 * - IDownloadListener::OnDownloadCompleted() when the download is completed without any errors
54 * - IDownloadListener::OnDownloadFailed() when the download has been stopped because of an error
56 * The following example demonstrates how to use the %DownloadManager class.
61 * #include <FContent.h>
63 * using namespace Tizen::Base;
64 * using namespace Tizen::Content;
65 * using namespace Tizen::App;
68 * : public Tizen::Content::IDownloadListener
71 * result Download(const String& url);
72 * virtual void OnDownloadCanceled(RequestId reqId) {}
73 * virtual void OnDownloadCompleted(RequestId reqId, const Tizen::Base::String& path);
74 * virtual void OnDownloadFailed(RequestId reqId, result r, const Tizen::Base::String& errorCode);
75 * virtual void OnDownloadPaused(RequestId reqId) {}
76 * virtual void OnDownloadInProgress(RequestId reqId, unsigned long long receivedSize, unsigned long long totalSize) {}
81 * MyAppClass::Download(const String& url)
83 * result r = E_SUCCESS;
84 * RequestId reqId = 0;
86 * DownloadRequest request(url);
87 * DownloadManager* pManager = DownloadManager::GetInstance();
89 * pManager->SetDownloadListener(this);
90 * pManager->Start(request, reqId);
96 * MyAppClass::void OnDownloadCompleted(RequestId reqId, const Tizen::Base::String& path)
98 * AppLog("Download is completed.");
102 * MyAppClass::OnDownloadFailed(RequestId reqId, result r, const Tizen::Base::String& errorCode)
104 * AppLog("Download failed.");
110 class _OSP_EXPORT_ DownloadManager
111 : public Tizen::Base::Object
115 * Gets the download manager instance of an application.
119 * @return A pointer to the %DownloadManager instance, @n
120 * else @c null if it fails
121 * @exception E_SUCCESS The method is successful.
122 * @exception E_SYSTEM The method cannot proceed due to a severe system error.
123 * @remarks The specific error code can be accessed using the GetLastResult() method.
125 static DownloadManager* GetInstance(void);
128 * Starts the download operation. @n
129 * If this operation succeeds, the IDownloadListener::OnDownloadInProgress() method is called. @n
133 * @privilege http://tizen.org/privilege/download
135 * @return An error code
136 * @param[in] request The download request
137 * @param[out] reqId The request ID
138 * @exception E_SUCCESS The method is successful.
139 * @exception E_INVALID_ARG The URL of the download request is invalid.
140 * @exception E_ILLEGAL_ACCESS Access to the path of the download request is denied due to insufficient permission.
141 * @exception E_PRIVILEGE_DENIED The application does not have the privilege to call this method.
142 * @exception E_SYSTEM The method cannot proceed due to a severe system error.
144 result Start(const DownloadRequest& request, RequestId& reqId);
147 * Pauses the download operation of the specified request ID. @n
148 * If this operation succeeds, the IDownloadListener::OnDownloadPaused() method is called.
152 * @return An error code
153 * @param[in] reqId The request ID returned by Start()
154 * @exception E_SUCCESS The method is successful.
155 * @exception E_INVALID_ARG There is no download request for the specified @c reqId.
156 * @exception E_INVALID_OPERATION The current download state prohibits the execution of this operation. @n
157 * The download state of the request ID is not downloading.
158 * @exception E_SYSTEM The method cannot proceed due to a severe system error.
160 result Pause(RequestId reqId);
163 * Resumes the download operation of the specified request ID. @n
164 * If this operation succeeds, the IDownloadListener::OnDownloadInProgress() method is called.
168 * @return An error code
169 * @param[in] reqId The request ID returned by Start()
170 * @exception E_SUCCESS The method is successful.
171 * @exception E_INVALID_ARG There is no download request for the specified @c reqId.
172 * @exception E_INVALID_OPERATION The current download state prohibits the execution of this operation. @n
173 * The download state for the specified request ID is either not paused or has failed.
174 * @exception E_SYSTEM The method cannot proceed due to a severe system error.
176 result Resume(RequestId reqId);
179 * Cancels the download operation of the specified request ID.
183 * @return An error code
184 * @param[in] reqId The request ID returned by Start()
185 * @exception E_SUCCESS The method is successful.
186 * @exception E_INVALID_ARG There is no download request for the specified @c reqId.
187 * @exception E_SYSTEM The method cannot proceed due to a severe system error.
189 result Cancel(RequestId reqId);
192 * Gets the download request information of the specified request ID.
196 * @return The download request
197 * @param[in] reqId The request ID returned by Start()
198 * @exception E_SUCCESS The method is successful.
199 * @exception E_INVALID_ARG There is no download request for the specified @c reqId.
200 * @remarks The specific error code can be accessed using the GetLastResult() method.
202 DownloadRequest* GetDownloadRequestN(RequestId reqId) const;
205 * Gets the download state of the given request ID. @n
206 * If there is no download request for the request ID, DOWNLOAD_STATE_NONE will be returned.
210 * @return The download state
211 * @param[in] reqId The request ID returned by Start()
213 DownloadState GetState(RequestId reqId) const;
216 * Gets the MIME type of a download request.
220 * @return An error code
221 * @param[in] reqId The request ID returned by Start()
222 * @param[out] mimeType The MIME type
223 * @exception E_SUCCESS The method is successful.
224 * @exception E_INVALID_ARG There is no download request for the specified @c reqId.
225 * @exception E_INVALID_OPERATION The current download state prohibits the execution of this operation. @n
226 * The download operation has not yet started.
227 * @exception E_SYSTEM The method cannot proceed due to a severe system error.
229 result GetMimeType(RequestId reqId, Tizen::Base::String& mimeType) const;
232 * Sets a download listener.
236 * @param[in] pListener The download listener @n
237 * If this is @c null, it unsets the download listener.
239 void SetDownloadListener(IDownloadListener* pListener);
243 * This default constructor is intentionally declared as private to implement the Singleton semantic.
245 DownloadManager(void);
248 * This destructor is intentionally declared as private to implement the Singleton semantic.
250 virtual ~DownloadManager(void);
253 * The implementation of this copy constructor is intentionally blank and declared as private to prohibit copying of objects.
255 DownloadManager(const DownloadManager& downloadManager);
258 * The implementation of this copy assignment operator is intentionally blank and declared as private to prohibit copying of objects.
260 DownloadManager& operator =(const DownloadManager& downloadManager);
262 friend class _DownloadManagerImpl;
263 class _DownloadManagerImpl * __pDownloadManagerImpl;
265 }; // DownloadManager
267 } } // Tizen::Content
269 #endif //_FCNT_DOWNLOAD_MANAGER_H_