example/lastfmplaylistserviceplugin/lastfmplaylistserviceplugin.h
changeset 23 574948b60dab
child 26 83d6a149c755
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/example/lastfmplaylistserviceplugin/lastfmplaylistserviceplugin.h	Thu Sep 23 17:15:03 2010 +0530
@@ -0,0 +1,285 @@
+/**
+ * Copyright (c) 2010 Sasken Communication Technologies Ltd.
+ * All rights reserved.
+ * This component and the accompanying materials are made available
+ * under the terms of the "Eclipse Public License v1.0" 
+ * which accompanies  this distribution, and is available
+ * at the URL "http://www.eclipse.org/legal/epl-v10.html"
+ *
+ * Initial Contributors:
+ * Chandradeep Gandhi, Sasken Communication Technologies Ltd - Initial contribution
+ *
+ * Contributors:
+ * Sangeeta Prasad, Nalina Hariharan
+ * 
+ * Description:
+ * The Plugin that does music playlist services related 
+ * functionalities from last.fm site
+ *
+ */
+
+#ifndef _LASTFMPLAYLISTSERVICEPLUGIN_H_
+#define _LASTFMPLAYLISTSERVICEPLUGIN_H_
+
+//Include files
+#include <smfplaylistserviceplugin.h>
+
+// Forward declarations
+class LastFmPlaylistServiceProviderBase;
+class QVariant;
+
+// Class declaration
+class LastFmPlaylistServicePlugin : public QObject, public SmfPlaylistServicePlugin
+{
+	Q_OBJECT
+	Q_INTERFACES( SmfPlaylistServicePlugin SmfPluginBase )
+
+public:
+	/**
+	 * Destructor
+	 */
+	virtual ~LastFmPlaylistServicePlugin ( );
+	
+public: // From SmfPlaylistServicePlugin
+	/**
+	 * Method to get the playlist
+	 * @param aRequest [out] The request data to be sent to network
+	 * @param aPageNum [in] The page to be extracted
+	 * @param aItemsPerPage [in] Number of items per page
+	 * @return Appropriate value of the enum SmfPluginError.
+	 * Plugin error if any, else SmfPluginErrNone for success
+	 */
+	SmfPluginError playlists( SmfPluginRequestData &aRequest,
+			const int aPageNum = SMF_FIRST_PAGE, 
+			const int aItemsPerPage = SMF_ITEMS_PER_PAGE );
+	
+	/**
+	 * Method to get the playlist of a particular user
+	 * @param aRequest [out] The request data to be sent to network
+	 * @param aUser [in] The user whose playlists need to be fetched
+	 * @param aPageNum [in] The page to be extracted
+	 * @param aItemsPerPage [in] Number of items per page
+	 * @return Appropriate value of the enum SmfPluginError.
+	 * Plugin error if any, else SmfPluginErrNone for success
+	 */
+	SmfPluginError playlistsOf( SmfPluginRequestData &aRequest,
+			const SmfContact &aUser,
+			const int aPageNum = SMF_FIRST_PAGE, 
+			const int aItemsPerPage = SMF_ITEMS_PER_PAGE );
+	
+	/**
+	 * Method to add tracks to a playlist
+	 * @param aRequest [out] The request data to be sent to network
+	 * @param aPlaylist [in] The playlist where tracks should be added
+	 * @param aTracks [in] The tracks to be added to the playlist
+	 * @return Appropriate value of the enum SmfPluginError.
+	 * Plugin error if any, else SmfPluginErrNone for success
+	 */
+	SmfPluginError addToPlaylist( SmfPluginRequestData &aRequest,
+			const SmfPlaylist &aPlaylist, 
+			const QList<SmfTrackInfo> &aTracks );
+	
+	/**
+	 * Method to post the current playing playlist
+	 * @param aRequest [out] The request data to be sent to network
+	 * @param aPlaylist [in] The current playing playlist which should be posted
+	 * @return Appropriate value of the enum SmfPluginError.
+	 * Plugin error if any, else SmfPluginErrNone for success
+	 */
+	SmfPluginError postCurrentPlayingPlaylist(
+			SmfPluginRequestData &aRequest, 
+			const SmfPlaylist &aPlaylist );
+	
+	/**
+	 * Customised method for SmfPlaylistServicePlugin interface
+	 * @param aRequest [out] The request data to be sent to network
+	 * @param aOperation [in] The operation type (should be known between 
+	 * the client interface and the plugin)
+	 * @param aData [in] The data required to form the request (The type 
+	 * of data should be known between client and the plugin)
+	 * @return Appropriate value of the enum SmfPluginError.
+	 * Plugin error if any, else SmfPluginErrNone for success
+	 */
+	SmfPluginError customRequest( SmfPluginRequestData &aRequest, 
+			const int &aOperation, QByteArray *aData );
+	
+public: // From SmfPluginBase interface
+	/**
+	 * The first method to be called in the plugin that implements this interface.
+	 * If this method is not called, plugin may not behave as expected.
+	 */
+	void initialize( );
+
+	/**
+	 * Method to get the provider information
+	 * @return Instance of SmfProviderBase
+	 */
+	SmfProviderBase* getProviderInfo( );
+
+	/**
+	 * Method to get the result for a network request.
+	 * @param aOperation The type of operation to be requested
+	 * @param aTransportResult The result of transport operation
+	 * @param aResponse The QByteArray instance containing the network response.
+	 * The plugins should delete this instance once they have read the
+	 * data from it.
+	 * @param aResult [out] An output parameter to the plugin manager.If the
+	 * return value is SmfSendRequestAgain, QVariant will be of type
+	 * SmfPluginRequestData.
+	 * For SmfMusicServicePlugin: If last operation was userMusicInfo(), aResult 
+	 * will be of type SmfMusicProfile. If last operation was searchArtist(), 
+	 * aResult will be of type QList<SmfArtists>. If last operation was searchAlbum(), 
+	 * aResult will be of type QList<SmfAlbum>. If last operation was searchEvents(), 
+	 * aResult will be of type QList<SmfEvent>. If last operation was searchVenue(), 
+	 * aResult will be of type QList<Smfocation>. If last operation was searchUser(), 
+	 * aResult will be of type QList<SmfMusicProfile>. If last operation was 
+	 * postCurrentPlaying() or postRating() or postComments(), aResult will be of 
+	 * type bool.
+	 * @param aRetType [out] SmfPluginRetType
+	 * @param aPageResult [out] The SmfResultPage structure variable
+	 */
+	SmfPluginError responseAvailable(
+			const SmfRequestTypeID aOperation,
+			const SmfTransportResult &aTransportResult,
+			QByteArray *aResponse,
+			QVariant* aResult,
+			SmfPluginRetType &aRetType,
+			SmfResultPage &aPageResult );
+	
+private:
+	/**
+	 * Method called by plugins to generate a signature string from a base string
+	 * @param aBaseString The base string
+	 * @return The md5 hash of the base string
+	 */
+	QString generateSignature( const QString aBaseString );
+
+	/**
+	 * Method to interpret the key sets obtained from credential manager 
+	 * @param aApiKey [out] The api key
+	 * @param aApiSecret [out] The api secret
+	 * @param aSessionKey [out] The session key
+	 * @param aToken [out] The session token
+	 * @param aName [out] The user name
+	 */
+	void fetchKeys( QString &aApiKey, 
+			QString &aApiSecret, 
+			QString &aToken,
+			QString &aName );
+
+private:
+	LastFmPlaylistServiceProviderBase *m_provider;
+	};
+
+/**
+ * The Plugin class that implements SmfProviderBase for this last.fm plugin
+ */
+class LastFmPlaylistServiceProviderBase : public QObject, public SmfProviderBase
+	{
+	Q_OBJECT
+	Q_INTERFACES( SmfProviderBase )
+
+public:
+	/**
+	 * Destructor
+	 */
+	virtual ~LastFmPlaylistServiceProviderBase( );
+
+	/**
+	 * Method to get the Localisable name of the service.
+	 * @return The Localisable name of the service.
+	 */
+	QString serviceName( ) const;
+
+	/**
+	 * Method to get the Logo of the service
+	 * @return The Logo of the service
+	 */
+	QImage serviceIcon( ) const;
+
+	/**
+	 * Method to get the Readable service description
+	 * @return The Readable service description
+	 */
+	QString description( ) const;
+
+	/**
+	 * Method to get the Website of the service
+	 * @return The Website of the service
+	 */
+	QUrl serviceUrl( ) const;
+
+	/**
+	 * Method to get the URL of the Application providing this service
+	 * @return The URL of the Application providing this service
+	 */
+	QUrl applicationUrl( ) const;
+
+	/**
+	 * Method to get the Icon of the application
+	 * @return The Icon of the application
+	 */
+	QImage applicationIcon( ) const;
+
+	/**
+	* Method to get the list of interfaces that this provider support
+	* @return List of supported Interafces
+	*/
+	QList<QString> supportedInterfaces( ) const;
+
+	/**
+	* Method to get the list of languages supported by this service provider
+	* @return a QStringList of languages supported by this service
+	* provider in 2 letter ISO 639-1 format.
+	*/
+	QStringList supportedLanguages( ) const;
+
+	/**
+	 * Method to get the Plugin specific ID
+	 * @return The Plugin specific ID
+	 */
+	QString pluginId( ) const;
+
+	/**
+	 * Method to get the ID of the authentication application
+	 * for this service
+	 * @param aProgram The authentication application name
+	 * @param aArguments List of arguments required for authentication app
+	 * @param aMode Strting mode for authentication application
+	 * @return The ID of the authentication application
+	 */
+	QString authenticationApp( QString &aProgram, QStringList & aArguments,
+			QIODevice::OpenModeFlag aMode = QIODevice::ReadWrite ) const;
+
+	/**
+	 * Method to get the unique registration ID provided by the
+	 * Smf for authorised plugins
+	 * @return The unique registration ID/token provided by the Smf for
+	 * authorised plugins
+	 */
+	QString smfRegistrationId( ) const;
+
+private:
+	/**
+	 * Method that initializes this class. This method should be called
+	 * from the initialize() method of the LastFmPlaylistServicePlugin class
+	 */
+	void initialize();
+
+private:
+	friend class LastFmPlaylistServicePlugin;
+	QString m_serviceName;
+	QImage m_serviceIcon;
+	QString m_description;
+	QUrl m_serviceUrl;
+	QUrl m_applicationUrl;
+	QImage m_applicationIcon;
+	QString m_pluginId;
+	QString m_authAppId;
+	QString m_smfRegToken;
+	QList<QString> m_supportedInterfaces;
+	QStringList m_supportedLangs;
+	QDateTime m_validity;
+	};
+
+#endif /* _LASTFMPLAYLISTSERVICEPLUGIN_H_ */