example/flickrgalleryplugin/flickrgalleryplugin.h
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     1 /**
       
     2  * Copyright (c) 2010 Sasken Communication Technologies Ltd.
       
     3  * All rights reserved.
       
     4  * This component and the accompanying materials are made available
       
     5  * under the terms of the "Eclipse Public License v1.0" 
       
     6  * which accompanies  this distribution, and is available
       
     7  * at the URL "http://www.eclipse.org/legal/epl-v10.html"
       
     8  *
       
     9  * Initial Contributors:
       
    10  * Chandradeep Gandhi, Sasken Communication Technologies Ltd - Initial contribution
       
    11  *
       
    12  * Contributors:
       
    13  * Sangeetha Prasad, Nalina Hariharan
       
    14  * 
       
    15  * Description:
       
    16  * The Plugin that fetches gallery related items from the logged in user's flickr account
       
    17  *
       
    18  */
       
    19 
       
    20 #ifndef FLICKRGALLERYPLUGIN_H_
       
    21 #define FLICKRGALLERYPLUGIN_H_
       
    22 
       
    23 // Include files
       
    24 #include <QDateTime>
       
    25 #include <smfgalleryplugin.h>
       
    26 #include <smfcontact.h>
       
    27 
       
    28 // Forward declarations
       
    29 class FlickrProviderBase;
       
    30 class QVariant;
       
    31 
       
    32 
       
    33 /**
       
    34  * The Plugin that fetches gallery related items from the logged 
       
    35  * in user's flickr account
       
    36  */
       
    37 class FlickrGalleryPlugin : public QObject, public SmfGalleryPlugin
       
    38 {
       
    39 	Q_OBJECT
       
    40 	Q_INTERFACES( SmfGalleryPlugin SmfPluginBase )
       
    41 
       
    42 public:
       
    43 	/**
       
    44 	 * Destructor
       
    45 	 */
       
    46 	virtual ~FlickrGalleryPlugin();
       
    47 	
       
    48 public: // From FlickrGalleryPlugin
       
    49 	
       
    50 	/**
       
    51 	 * Method to get a list of albums
       
    52 	 * @param aRequest [out] The request data to be sent to network
       
    53 	 * @param aNames The subject or any keywords to be used to filter albums with that name
       
    54 	 * @param aUser The user whose albums are requested
       
    55 	 * @param aPageNum The page to be extracted
       
    56 	 * @param aItemsPerPage Number of items per page
       
    57 	 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone
       
    58 	 */
       
    59 	SmfPluginError albums( SmfPluginRequestData &aRequest, 
       
    60 			const QStringList &aNames, 
       
    61 			const SmfContact *aUser, 
       
    62 			const int aPageNum = SMF_FIRST_PAGE,
       
    63 			const int aItemsPerPage = SMF_ITEMS_PER_PAGE );
       
    64 	
       
    65 	/**
       
    66 	 * Method to get a list of pictures
       
    67 	 * @param aRequest [out] The request data to be sent to network
       
    68 	 * @param aAlbums The album(s) whose pictures are being requested
       
    69 	 * @param aPageNum The page to be extracted
       
    70 	 * @param aItemsPerPage Number of items per page
       
    71 	 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone
       
    72 	 */
       
    73 	SmfPluginError pictures( SmfPluginRequestData &aRequest, 
       
    74 			const SmfPictureAlbumList &aAlbums, 
       
    75 			const int aPageNum = SMF_FIRST_PAGE, 
       
    76 			const int aItemsPerPage = SMF_ITEMS_PER_PAGE );
       
    77 	
       
    78 	 /**
       
    79 	 * Method to get a description
       
    80 	 * @param aRequest [out] The request data to be sent to network
       
    81 	 * @param aImage The image abot which the description is required
       
    82 	 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone
       
    83 	 */
       
    84 	SmfPluginError description( SmfPluginRequestData &aRequest,
       
    85 			const SmfPicture &aImage );
       
    86 		 
       
    87 	/**
       
    88 	 * Method to upload a picture
       
    89 	 * @param aRequest [out] The request data to be sent to network
       
    90 	 * @param aImage The image to be uploaded
       
    91 	 * @param aAlbum the optional destination album name
       
    92 	 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone
       
    93 	 */
       
    94 	SmfPluginError upload( SmfPluginRequestData &aRequest,
       
    95 			const SmfPicture &aImage,
       
    96 			const SmfPictureAlbum* aAlbum = NULL );
       
    97 	
       
    98 			
       
    99 	/**
       
   100 	 * Method to upload a list of pictures
       
   101 	 * @param aRequest [out] The request data to be sent to network
       
   102 	 * @param aImages The list of images to be uploaded
       
   103 	 * @param aAlbum the optional destination album name
       
   104 	 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone
       
   105 	 */
       
   106 	SmfPluginError upload( SmfPluginRequestData &aRequest,
       
   107 			const QList<SmfPicture> &aImages, 
       
   108 			const SmfPictureAlbum* aAlbum = NULL );
       
   109 	
       
   110   /**
       
   111 	* Method to post comment on a picture is available
       
   112 	* @param aRequest [out] The request data to be sent to network
       
   113 	* @param aImage The image on which comment is to be posted
       
   114 	* @param aComment The comment to be posted
       
   115 	* @return SmfPluginError Plugin error if any, else SmfPluginErrNone
       
   116 	*/
       
   117 	SmfPluginError postComment( SmfPluginRequestData &aRequest,
       
   118 			 const SmfPicture &aImage, 
       
   119 			 const SmfComment &aComment );
       
   120 	
       
   121 	
       
   122 	/**
       
   123 	 * Customised method for SMFGalleryPlugin interface
       
   124 	 * @param aRequest [out] The request data to be sent to network
       
   125 	 * @param aOperation The operation type (should be known between 
       
   126 	 * the client interface and the plugin)
       
   127 	 * @param aData The data required to form the request (The type 
       
   128 	 * of data should be known between client and the plugin)
       
   129 	 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone
       
   130 	 */
       
   131 	SmfPluginError customRequest( SmfPluginRequestData &aRequest, 
       
   132 			const int &aOperation, 
       
   133 			QByteArray *aData );
       
   134 	
       
   135 public: // From SmfPluginBase
       
   136 	/**
       
   137 	 * The first method to be called in the plugin that implements this interface.
       
   138 	 * If this method is not called, plugin may not behave as expected.
       
   139 	 */
       
   140 	void initialize( );
       
   141 	
       
   142 	/**
       
   143 	 * Method to get the provider information
       
   144 	 * @return Instance of SmfProviderBase
       
   145 	 */
       
   146 	SmfProviderBase* getProviderInfo( );
       
   147 	
       
   148 	/**
       
   149 	 * Method to get the result for a network request.
       
   150 	 * @param aOperation The type of operation to be requested
       
   151 	 * @param aTransportResult The result of transport operation
       
   152 	 * @param aResponse The QByteArray instance containing the network response.
       
   153 	 * The plugins should delete this instance once they have read the 
       
   154 	 * data from it.
       
   155 	 * @param aResult [out] An output parameter to the plugin manager.If the 
       
   156 	 * return value is SmfSendRequestAgain, QVariant will be of type 
       
   157 	 * SmfPluginRequestData.
       
   158 	 * For SmfGalleryPlugin: If last operation was albums, aResult will be of 
       
   159 	 * type QList<SmfPictureAlbum>. If the last operation was pictures(), aResult 
       
   160 	 * will be of type QList<SmfPicture>. If last operation was description(), 
       
   161 	 * aResult will be of type QString. If last operation was upload() or 
       
   162 	 * postComment(), aResult will be of type bool.
       
   163 	 * @param aRetType [out] SmfPluginRetType
       
   164 	 * @param aPageResult [out] The SmfResultPage structure variable
       
   165 	 */
       
   166 	SmfPluginError responseAvailable( 
       
   167 			const SmfRequestTypeID aOperation,
       
   168 			const SmfTransportResult &aTransportResult, 
       
   169 			QByteArray *aResponse, 
       
   170 			QVariant* aResult, 
       
   171 			SmfPluginRetType &aRetType,
       
   172 			SmfResultPage &aPageResult );
       
   173 	
       
   174 	/**
       
   175 	 * Method to construct individual fields for photo upload
       
   176 	 * @param aName The name argument
       
   177 	 * @param aContent The content of this field
       
   178 	 * @param aBoundary The boundary string (need to be unique in the payload data)
       
   179 	 * @param aFilename The filename if for photo field 
       
   180 	 * @return The field data constructed by this method
       
   181 	 */
       
   182 	QByteArray constructField( const QString &aName, 
       
   183 			const QString &aContent, 
       
   184 			const QByteArray &aBoundary, 
       
   185 			const QString &aFilename = QString() );
       
   186     
       
   187 private:
       
   188 	/**
       
   189 	 * Method called by plugins to generate a signature string from a base string
       
   190 	 * @param aBaseString The base string
       
   191 	 * @return The md5 hash of the base string
       
   192 	 */
       
   193 	QString generateSignature( const QString aBaseString );
       
   194     
       
   195 	/**
       
   196 	 * Method to interpret the key sets obtained from credential manager 
       
   197 	 * @param aApiKey [out] The api key
       
   198 	 * @param aApiSecret [out] The api secret
       
   199 	 * @param aAuthToken [out] The auth token provided by Flickr
       
   200 	 */
       
   201 	void fetchKeys(	QString &aApiKey, 
       
   202 			QString &aApiSecret, 
       
   203 			QString &aAuthToken );
       
   204 
       
   205 private:
       
   206 	FlickrProviderBase *m_provider;
       
   207 	
       
   208 	};
       
   209 
       
   210 /**
       
   211  * The Plugin class that implements SmfProviderBase for this flickr plugin
       
   212  */
       
   213 class FlickrProviderBase : public QObject, public SmfProviderBase
       
   214 	{
       
   215 	Q_OBJECT
       
   216 	Q_INTERFACES( SmfProviderBase )
       
   217 
       
   218 public:
       
   219 	virtual ~FlickrProviderBase( );
       
   220 
       
   221 	/**
       
   222 	 * Method to get the Localisable name of the service.
       
   223 	 * @return The Localisable name of the service.
       
   224 	 */
       
   225 	QString serviceName( ) const;
       
   226 	
       
   227 	/**
       
   228 	 * Method to get the Logo of the service
       
   229 	 * @return The Logo of the service
       
   230 	 */
       
   231 	QImage serviceIcon( ) const;
       
   232 	
       
   233 	/**
       
   234 	 * Method to get the Readable service description
       
   235 	 * @return The Readable service description
       
   236 	 */
       
   237 	QString description( ) const;
       
   238 	
       
   239 	/**
       
   240 	 * Method to get the Website of the service
       
   241 	 * @return The Website of the service
       
   242 	 */
       
   243 	QUrl serviceUrl( ) const;
       
   244 	
       
   245 	/**
       
   246 	 * Method to get the URL of the Application providing this service
       
   247 	 * @return The URL of the Application providing this service
       
   248 	 */
       
   249 	QUrl applicationUrl( ) const;
       
   250 	
       
   251 	/**
       
   252 	 * Method to get the Icon of the application
       
   253 	 * @return The Icon of the application
       
   254 	 */
       
   255 	QImage applicationIcon( ) const;
       
   256 	
       
   257 	/**
       
   258 	* Method to get the list of interfaces that this provider support
       
   259 	* @return List of supported Interafces
       
   260 	*/
       
   261 	QList<QString> supportedInterfaces( ) const;
       
   262 	
       
   263 	/**
       
   264 	* Method to get the list of languages supported by this service provider
       
   265 	* @return a QStringList of languages supported by this service 
       
   266 	* provider in 2 letter ISO 639-1 format.
       
   267 	*/
       
   268 	QStringList supportedLanguages( ) const;
       
   269 	
       
   270 	/**
       
   271 	 * Method to get the Plugin specific ID
       
   272 	 * @return The Plugin specific ID
       
   273 	 */
       
   274 	QString pluginId( ) const;
       
   275 	
       
   276 	/**
       
   277 	 * Method to get the ID of the authentication application 
       
   278 	 * for this service
       
   279 	 * @param aProgram The authentication application name
       
   280 	 * @param aArguments List of arguments required for authentication app
       
   281 	 * @param aMode Strting mode for authentication application
       
   282 	 * @return The ID of the authentication application 
       
   283 	 */
       
   284 	QString authenticationApp( QString &aProgram, QStringList & aArguments, 
       
   285 			QIODevice::OpenModeFlag aMode = QIODevice::ReadWrite ) const;
       
   286 	
       
   287 	/**
       
   288 	 * Method to get the unique registration ID provided by the 
       
   289 	 * Smf for authorised plugins
       
   290 	 * @return The unique registration ID/token provided by the Smf for 
       
   291 	 * authorised plugins
       
   292 	 */
       
   293 	QString smfRegistrationId( ) const;
       
   294 	
       
   295 private:
       
   296 	friend class FlickrGalleryPlugin;
       
   297 	void initialize();
       
   298 	QString m_serviceName;
       
   299 	QImage m_serviceIcon;
       
   300 	QString m_description;
       
   301 	QUrl m_serviceUrl;
       
   302 	QUrl m_applicationUrl;
       
   303 	QImage m_applicationIcon;
       
   304 	QString m_pluginId;
       
   305 	QString m_authAppId;
       
   306 	QString m_smfRegToken;
       
   307 	QList<QString> m_supportedInterfaces;
       
   308 	QStringList m_supportedLangs;
       
   309 	QDateTime m_validity;
       
   310 	};
       
   311 
       
   312 
       
   313 #endif /* FLICKRGALLERYPLUGIN_H_ */