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Diffstat (limited to 'interfaces/kimproxy/library/kimproxy.h')
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diff --git a/interfaces/kimproxy/library/kimproxy.h b/interfaces/kimproxy/library/kimproxy.h new file mode 100644 index 000000000..6f56a0f13 --- /dev/null +++ b/interfaces/kimproxy/library/kimproxy.h @@ -0,0 +1,654 @@ +/* + kimproxy.h + + IM service library for KDE + + Copyright (c) 2004 Will Stephenson <lists@stevello.free-online.co.uk> + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + along with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#ifndef KIMPROXY_H +#define KIMPROXY_H + +#include <qdict.h> +#include <qmap.h> +#include <qptrdict.h> +#include <qstringlist.h> + + +#define IM_SERVICE_TYPE "DCOP/InstantMessenger" +#define IM_CLIENT_PREFERENCES_FILE "default_components" +#define IM_CLIENT_PREFERENCES_SECTION "InstantMessenger" +#define IM_CLIENT_PREFERENCES_ENTRY "imClient" + +#include "kimproxyiface.h" + +class DCOPClient; +class KIMIface_stub; +class KURL; +class ContactPresenceListCurrent; + +/** FIXME: remove for KDE4, binary compability again. */ +typedef QMap<QCString, int> AppPresence; // appId->presence; contains all applications' ideas of a user's presence +typedef QDict<AppPresence> PresenceMap; // uid->AppPresence; contains a AppPresences for all users +/** FIXME: remove presenceMap and call this presenceMap in KDE4. This hack is for binary compatibility */ +typedef QMap<QString, ContactPresenceListCurrent> PresenceStringMap; + +/** + * @brief Provides access to instant messenger programs which implement KDE's + * instant messanger interface KIMIface + * + * This class provides an easy-to-use interface to all running instant + * messengers or chat programs that implement KIMIface. + * + * It works simultaneously with any running programs that implement the + * ServiceType @c DCOP/InstantMessenger. + * + * IM-contacts are identified using unique identifier strings (UID) used by + * KDE's address book framework KABC. + * However the use of the address book API is optional, KIMProxy provides + * methods to fetch lists of available contact UIDs from the applications. + * If a UID is reachable with more than one program, KIMProxy aggregates the + * available information and presents the 'best' presence. For example, for a + * contact who can be seen to be @c Away in @c IRC on program A but @c Online + * using @c ICQ on program B, the information from program B will be used. + * + * KIMProxy is designed for simple information in a wide number of cases, not + * for detailed messaging. + * + * The class is implemented as a singleton, so whenever you need access to + * one of its methods, just retrieve the single instance using instance(). + * The following code snippet demonstrated how to send a message to all + * reachable IM-contacts: + * @code + * // get proxy instance + * KIMProxy* proxy = KIMProxy::instance(); + * + * // check if there are suitable applications reachable + * if (!proxy->initialize()) return; + * + * QString message = "Hi!\nHow are you on this wonderful day?"; + * + * // iterate over the list of reachable contacts + * QStringList reachableContacts = proxy->reachableContacts(); + * for (QStringList::const_iterator it = reachableContacts.begin(); + * it != reachableContacts.end(); ++it) + * { + proxy->messageContact(*it, message); + * } + * @endcode + * + * @note While it is possible to communicate with each of those application's + * by DCOP using KIMProxy has the advantage of communicating with all + * applications simultaneously and thus getting an augmented view of + * availability, capability and presence (online status) of IM-contacts. + * + * @see KIMIface + * @see KABC::AddressBook + * @see KABC::Addressee + * + * @since 3.3 + * @author Will Stephenson <lists@stevello.free-online.co.uk> + */ +class KIMPROXY_EXPORT KIMProxy : public QObject, virtual public KIMProxyIface +{ + Q_OBJECT + struct Private; + + template<class> friend class KStaticDeleter; + ~KIMProxy(); + + public: + /** + * @brief Obtain an instance of KIMProxy + * + * Creates a new instance if it is called for the first time. + * Call initialize() to check if there are applications available for + * communication. + * + * @note KIMProxy uses DCOPClient::setNotifications() to make sure + * it updates its information about IM applications it interacts with, + * e.g. that it gets notified about newly available applications or + * about applications exiting + * + * @param client your application's DCOP client + * @return the singleton instance of this class + */ + static KIMProxy * instance( DCOPClient * client ); + + /** + * @brief Get the proxy ready to connect + * + * Discover any running IM clients and setup communication handlers for + * them. The list of available clients is updated automatically + * through notification about added or removed DCOP applications as + * provided by DCOPClient. + * + * It is safe to call this method more than once, initialization only + * occurs at the first time. + * + * @return whether the proxy is ready to use. + * @c false if there are no suitable apps running + */ + bool initialize(); + + /** + * @brief Obtain a list of IM-contacts known to IM-applications + * + * Returns a list of KABC UIDs gathered by merging the lists of + * each application the proxy can communicate with. + * The method uses cached information to make it fast and not + * require actually communicating with the applications every time + * it is called. + * + * @return a list of KABC UIDs known to any IM-application + * + * @see reachableContacts() + * @see onlineContacts() + * @see fileTransferContacts() + * @see isPresent() + * @see KABC::Addressee::uid() + */ + QStringList allContacts(); + + /** + * @brief Obtain a list of IM-contacts that are currently reachable + * + * Returns a list of KABC UIDs gathered by merging the lists of + * each application the proxy can communicate with. + * + * @return a list of KABC UIDs who can receive a message, even if offline + * + * @see allContacts() + * @see onlineContacts() + * @see fileTransferContacts() + * @see messageContact() + * @see KABC::Addressee::uid() + */ + QStringList reachableContacts(); + + /** + * @brief Obtain a list of IM-contacts that are currently online + * + * Returns a list of KABC UIDs gathered by merging the lists of + * each application the proxy can communicate with. + * The method uses cached information to make it fast and not + * require actually communicating with the applications every time + * it is called. + * + * @return a list of KABC UIDs who are online with unspecified presence + * + * @see allContacts() + * @see reachableContacts() + * @see fileTransferContacts() + * @see messageContact() + * @see chatWithContact() + * @see KABC::Addressee::uid() + */ + QStringList onlineContacts(); + + /** + * @brief Obtain a list of IM-contacts who may receive file transfers + * + * Returned IM-contacts might not be capable of receiving file + * tranfers due to limitations of their clients or because they are + * behind a firewall. + * KIMProxy doesn't have the possibilities to discover this and will + * list them as well. + * + * Returns a list of KABC UIDs gathered by merging the lists of + * each application the proxy can communicate with. + * + * @return a list of KABC UIDs capable of file transfer + * + * @see allContacts() + * @see reachableContacts() + * @see onlineContacts() + * @see canReceiveFiles() + * @see KABC::Addressee::uid() + */ + QStringList fileTransferContacts(); + + /** + * @brief Confirm if a given contact is known to the proxy + * + * A contact is known to the proxy if it is know to at least one + * IM-application the proxy is communicating with. + * + * The method uses cached information to make it fast and not + * require actually communicating with the applications every time + * it is called. + * + * @param uid the KABC UID you are interested in + * @return whether any IM-program knows of this KABC UID + * + * @see allContacts() + * @see presenceString() + * @see presenceNumeric() + * @see KABC::Addressee::uid() + */ + bool isPresent( const QString& uid ); + + /** + * @brief Obtain the proxy's idea of the contact's display name + * + * If the given KABC UID is known to more than one IM-application + * the result of the application which has the best presence for the + * contact is taken. + * For example if a contact is @c Online on ICQ and @c Away on AIM, the + * value returned by the application providing ICQ is taken. + * + * Useful if KABC lookups may be too slow. + * + * @param uid the KABC UID you are interested in + * @return the corresponding display name or QString:null if the + * UID is unknown + * + * @see isPresent() + * @see presenceString() + * @see presenceNumeric() + * @see KABC::Addressee::uid() + */ + QString displayName( const QString& uid ); + + /** + * @brief Obtain the IM presence as a number for the specified contact + * + * Returns one of the following values depending on the given contact's + * presence: + * - 0 - @c Unknown: for contacts where you can not use any of the + * other values + * + * - 1 - @c Offline: for contacts that are offline, i.e. not connected + * to their IM-service. + * + * - 2 - @c Connecting + * + * - 3 - @c Away: for contacts that are connected to their IM-service + * but not @c Online + * + * - 4 - @c Online + * + * If the given KABC UID is known to more than one IM-application + * the result of the application which has the best presence for the + * contact is taken. + * For example if a contact is @c Online on ICQ and Away on AIM, the + * value returned by the application providing ICQ is taken. + * + * The method uses cached information to make it fast and not + * require actually communicating with the applications every time + * it is called. + * + * @param uid the KABC UID you want the presence for + * @return a numeric representation of presence - currently one of + * 0 (Unknown), 1 (Offline), 2 (Connecting), 3 (Away), + * 4 (Online). Returns 0 if the given UID is unknown + * + * @see isPresent() + * @see presenceString() + * @see presenceIcon() + * @see KIMIface::presenceStatus() + * @see KABC::Addressee::uid() + */ + int presenceNumeric( const QString& uid ); + + /** + * @brief Obtain the IM presence as a i18ned string for the specified + * contact + * + * The presence string is one of the following: + * - i18n("Unknown") + * - i18n("Offline") + * - i18n("Connecting") + * - i18n("Away") + * - i18n("Online") + * + * If the given KABC UID is known to more than one IM-application + * the result of the application which has the best presence for the + * contact is taken. + * For example if a contact is @c Online on ICQ and Away on AIM, the + * value returned by the application providing ICQ is taken. + * + * @note The presence string is created based on the numerical + * presence value returned by the applications. It currently + * does not return the presence strings used by the applications. + * + * The method uses cached information to make it fast and not + * require actually communicating with the applications every time + * it is called. + * + * @param uid the KABC UID you want the presence for + * @return the i18ned string describing the contact's presence or + * QString::null if the UID is unknown + * + * @see isPresent() + * @see presenceNumeric() + * @see presenceIcon() + * @see KABC::Addressee::uid() + */ + QString presenceString( const QString& uid ); + + /** + * @brief Obtain the icon representing the IM presence for the + * specified contact + * + * If the given KABC UID is known to more than one IM-application + * the result of the application which has the best presence for the + * contact is taken. + * For example if a contact is @c Online on ICQ and Away on AIM, the + * value returned by the application providing ICQ is taken. + * + * @note The presence icon is chosen based on the numerical + * presence value returned by the applications. It currently + * does not return the presence icon used by the applications. + * + * The method uses cached information to make it fast and not + * require actually communicating with the applications every time + * it is called. + * + * @param uid the KABC UID you want the presence icon for + * @return a pixmap representing the contact's presence or a null + * pixmap if the contact is unknown. See QPixmap::isNull() + * + * @see isPresent() + * @see presenceString() + * @see presenceNumeric() + * @see KABC::Addressee::uid() + */ + QPixmap presenceIcon( const QString& uid ); + + /** + * @brief Indicate if a given contact can receive files + * + * If the given KABC UID is known to more than one IM-application + * the result of the application which has the best presence for the + * contact is taken. + * For example if a contact is @c Online on ICQ and Away on AIM, the + * value returned by the application providing ICQ is taken. + * + * @param uid the KABC UID you want to the file transfer capability for + * @return whether the specified contact can receive files + * + * @see fileTransferContacts() + * @see KABC::Addressee::uid() + */ + bool canReceiveFiles( const QString & uid ); + + /** + * @brief Indicate if a given contact will be able to respond + * + * Some media are unidirectional (e.g., sending SMS via a web + * interface). + * This refers to the contact's ability to respond as defined by the + * medium, not by their presence. + * + * Someone may appear offline (SMS has no presence) to you but in fact + * be able to respond. + * + * If the given KABC UID is known to more than one IM-application + * the result of the application which has the best presence for the + * contact is taken. + * For example if a contact is @c Online on ICQ and Away on AIM, the + * value returned by the application providing ICQ is taken. + * + * @param uid the KABC UID you are interested in + * @return whether the specified contact can respond + * + * @see isPresent() + * @see KABC::Addressee::uid() + */ + bool canRespond( const QString & uid ); + + /** + * @brief Obtain the KABC UID corresponding to the given IM address + * + * @param contactId the protocol specific identifier for the contact, + * e.g. UIN for ICQ, screenname for AIM, nick for IRC + * @param protocol the IM protocol/service to check. + * See KIMIface::protocols() + * @return the KABC UID for the given contact or @c QString::null if + * not found or either input stream was empty or the protocol + * is not supported + * + * @see KIMIface::protocols() + * @see addContact() + * @see isPresent() + * @see KABC::Addressee::uid() + */ + QString locate( const QString & contactId, const QString & protocol ); + + /** + * @brief Obtain the given contact's current context (home, work, or + * any) + * + * Not all IM services/protocols support the concept of contexts. If the + * given UID maps to such a service, @c QString::null will be returned + * + * If the given KABC UID is known to more than one IM-application + * the result of the application which has the best presence for the + * contact is taken. + * For example if a contact is @c Online on ICQ and Away on AIM, the + * value returned by the application providing ICQ is taken. + * + * @param uid the KABC UID you want the context for + * @return a string describing the context, or @c QString::null if not + * supported or if the contact is unknown + * + * @see isPresent() + * @see KABC::Addressee::uid() + */ + QString context( const QString & uid ); + + /** + * @brief Start a chat session with the specified contact + * + * @param uid the KABC UID you want to chat with + * + * @see messageContact() + * @see sendFile() + * @see isPresent() + * @see reachableContacts() + * @see KABC::Addressee::uid() + */ + void chatWithContact( const QString& uid ); + + /** + * @brief Send a single message to the specified contact + * + * Any response will be handled by the IM client as a normal + * conversation. + * + * @param uid the KABC UID you want to send the message to + * @param message the message text to send to the contact + * + * @see chatWithContact() + * @see sendFile() + * @see isPresent() + * @see reachableContacts() + * @see KABC::Addressee::uid() + */ + void messageContact( const QString& uid, const QString& message ); + + /** + * @brief Send a file to the contact + * + * Initiates a file transfer with the given contact if possible. + * + * @param uid the KABC UID you want to send to + * @param sourceURL a KURL pointing to the file to send + * @param altFileName an alternate filename describing the file or a + * description or title + * @param fileSize file size in bytes + * + * @see messageContact() + * @see chatWithContact() + * @see isPresent() + * @see fileTransferContacts() + * @see KABC::Addressee::uid() + */ + void sendFile(const QString &uid, const KURL &sourceURL, + const QString &altFileName = QString::null, uint fileSize = 0); + + /** + * @brief Add a new contact given its protocol specific identifier + * + * @param contactId the protocol specific identifier for the contact + * e.g. UIN for ICQ, screenname for AIM, nick for IRC + * @param protocol the IM protocol/service to use. + * See KIMIface:::protocols() + * @return whether the add succeeded. @c false may signal already present, + * protocol not supported, or add operation not supported. + * + * @see locate() + * @see KIMIface::protocols() + */ + bool addContact( const QString &contactId, const QString &protocol ); + + /** + * @brief Checks if there are any compatible instant messaging + * applications available + * + * Available means that they are started and registered with DCOP + * and implementing the correct DCOP service. + * This information will be updated on the first call to initialize() + * and whenever an application registers or unregisters with DCOP, + * i.e. the information will be kept up to date. + * + * @return @c true if there are any apps available + */ + bool imAppsAvailable(); + + /** + * @brief Start the user's preferred IM application + * @return whether a preferred app was found. No guarantee that it + * started correctly + */ + bool startPreferredApp(); + + /** + * Just exists to let the IDL compiler make the DCOP signal for this + */ + void contactPresenceChanged( QString uid, QCString appId, int presence ); + + public slots: + /** + * @brief Updates the proxy's data after a new application registered + * with DCOP + * + * Checks if the application specified by the given DCOP application + * identifier implements the instant messenger service. + * + * @param appId the DCOP application ID of the newly registered + * application + * + * @see DCOPClient::applicationRegistered() + */ + void registeredToDCOP( const QCString& appId ); + + /** + * @brief Updates the proxy's data after an application unregistered + * with DCOP + * + * If the application specified by the given DCOP application + * identifier is one of the instant messenger applications of the + * proxy, it will remove the presence information it gathered from it + * earlier on. + * + * Emits sigPresenceInfoExpired() to let the using applcation know + * its presence related information might need updating. + * + * @param appId the DCOP application ID of the now unregistered + * application + * + * @see DCOPClient::applicationRemoved() + */ + void unregisteredFromDCOP( const QCString& appId ); + signals: + /** + * @brief Indicates that the specified IM-contact's presence changed + * + * @param uid the KABC UID whose presence changed + * + * @see isPresent() + * @see presenceNumeric() + * @see presenceIcon() + * @see KABC::Addressee::uid() + */ + void sigContactPresenceChanged( const QString &uid ); + + /** + * @brief Indicates that presence information obtained earlier on might + * not be valid any longer + * + * After the sources of presence information have changed so any + * previously supplied presence info is invalid. + */ + void sigPresenceInfoExpired(); + protected: + /** + * Bootstrap our presence data for a newly registered app + */ + void pollApp( const QCString & appId ); + /** + * Bootstrap our presence data by polling all known apps + */ + void pollAll( const QString &uid ); + + /** + * Update our records with the given data + */ + bool updatePresence( const QString &uid, const QCString &appId, int presence ); + + /** + * Get the name of the user's IM application of choice + */ + QString preferredApp(); + + /** + * Get the app stub best able to reach this uid + */ + KIMIface_stub * stubForUid( const QString &uid ); + + /** + * Get the app stub for this protocol. + * Take the preferred app first, then any other. + */ + KIMIface_stub * stubForProtocol( const QString &protocol ); + + private: + // client stubs used to get presence + // appId (from DCOP) -> KIMIface_stub + QDict<KIMIface_stub> m_im_client_stubs; + // map containing numeric presence and the originating application ID for each KABC uid we know of + // KABC Uid -> (appId, numeric presence )(AppPresence) + PresenceMap m_presence_map; + // cache of the client strings in use by each application + // dictionary of KIMIface_stub -> map of numeric presence -> string presence + // FIXME: remove for KDE4 - UNUSED but maintained for binary compatibility in KDE 3.4 + QPtrDict<int> m_client_presence_strings; + Private * d; + bool m_apps_available; + bool m_initialized; + /** + * Construct an instance of the proxy library. + */ + KIMProxy( DCOPClient * client); + static KIMProxy * s_instance; +}; + +#endif + |