X-Git-Url: https://git.quassel-irc.org/?p=quassel.git;a=blobdiff_plain;f=src%2Fcommon%2Feventmanager.cpp;fp=src%2Fcommon%2Feventmanager.cpp;h=3adbadcc12e6a342ee2fa54be9f7dcb88a28408e;hp=03c04df3460337cd5e189c5d05e75238a631e0a6;hb=694f9bfbf7f1af19108461c7e00d133e55082bce;hpb=61c8d84d1c849373e0f115dc748ed45cff95287d diff --git a/src/common/eventmanager.cpp b/src/common/eventmanager.cpp index 03c04df3..3adbadcc 100644 --- a/src/common/eventmanager.cpp +++ b/src/common/eventmanager.cpp @@ -30,55 +30,71 @@ // ============================================================ // QueuedEvent // ============================================================ -class QueuedQuasselEvent : public QEvent { +class QueuedQuasselEvent : public QEvent +{ public: - QueuedQuasselEvent(Event *event) - : QEvent(QEvent::User), event(event) {} - Event *event; + QueuedQuasselEvent(Event *event) + : QEvent(QEvent::User), event(event) {} + Event *event; }; + // ============================================================ // EventManager // ============================================================ EventManager::EventManager(QObject *parent) - : QObject(parent) { + : QObject(parent) +{ } -QMetaEnum EventManager::eventEnum() { - if(!_enum.isValid()) { - int eventEnumIndex = staticMetaObject.indexOfEnumerator("EventType"); - Q_ASSERT(eventEnumIndex >= 0); - _enum = staticMetaObject.enumerator(eventEnumIndex); - Q_ASSERT(_enum.isValid()); - } - return _enum; + +QMetaEnum EventManager::eventEnum() +{ + if (!_enum.isValid()) { + int eventEnumIndex = staticMetaObject.indexOfEnumerator("EventType"); + Q_ASSERT(eventEnumIndex >= 0); + _enum = staticMetaObject.enumerator(eventEnumIndex); + Q_ASSERT(_enum.isValid()); + } + return _enum; } -EventManager::EventType EventManager::eventTypeByName(const QString &name) { - int val = eventEnum().keyToValue(name.toLatin1()); - return (val == -1) ? Invalid : static_cast(val); + +EventManager::EventType EventManager::eventTypeByName(const QString &name) +{ + int val = eventEnum().keyToValue(name.toLatin1()); + return (val == -1) ? Invalid : static_cast(val); } -EventManager::EventType EventManager::eventGroupByName(const QString &name) { - EventType type = eventTypeByName(name); - return type == Invalid? Invalid : static_cast(type & EventGroupMask); + +EventManager::EventType EventManager::eventGroupByName(const QString &name) +{ + EventType type = eventTypeByName(name); + return type == Invalid ? Invalid : static_cast(type & EventGroupMask); } -QString EventManager::enumName(EventType type) { - return eventEnum().valueToKey(type); + +QString EventManager::enumName(EventType type) +{ + return eventEnum().valueToKey(type); } -QString EventManager::enumName(int type) { - return eventEnum().valueToKey(type); + +QString EventManager::enumName(int type) +{ + return eventEnum().valueToKey(type); } -Event *EventManager::createEvent(const QVariantMap &map) { - QVariantMap m = map; - Network *net = networkById(m.take("network").toInt()); - return Event::fromVariantMap(m, net); +Event *EventManager::createEvent(const QVariantMap &map) +{ + QVariantMap m = map; + + Network *net = networkById(m.take("network").toInt()); + return Event::fromVariantMap(m, net); } + /* NOTE: Registering and calling handlers works fine even if they specify a subclass of Event as their parameter. However, this most probably is a result from a reinterpret_cast somewhere deep inside Qt, so there is *no* @@ -93,218 +109,244 @@ Event *EventManager::createEvent(const QVariantMap &map) { with the actual class. Possibly (optionally) using rtti... */ -int EventManager::findEventType(const QString &methodSignature_, const QString &methodPrefix) const { - if(!methodSignature_.startsWith(methodPrefix)) - return -1; +int EventManager::findEventType(const QString &methodSignature_, const QString &methodPrefix) const +{ + if (!methodSignature_.startsWith(methodPrefix)) + return -1; - QString methodSignature = methodSignature_; + QString methodSignature = methodSignature_; - methodSignature = methodSignature.section('(',0,0); // chop the attribute list - methodSignature = methodSignature.mid(methodPrefix.length()); // strip prefix + methodSignature = methodSignature.section('(', 0, 0); // chop the attribute list + methodSignature = methodSignature.mid(methodPrefix.length()); // strip prefix - int eventType = -1; + int eventType = -1; - // special handling for numeric IrcEvents: IrcEvent042 gets mapped to IrcEventNumeric + 42 - if(methodSignature.length() == 8+3 && methodSignature.startsWith("IrcEvent")) { - int num = methodSignature.right(3).toUInt(); - if(num > 0) { - QString numericSig = methodSignature.left(methodSignature.length() - 3) + "Numeric"; - eventType = eventEnum().keyToValue(numericSig.toAscii()); - if(eventType < 0) { - qWarning() << Q_FUNC_INFO << "Could not find EventType" << numericSig << "for handling" << methodSignature; + // special handling for numeric IrcEvents: IrcEvent042 gets mapped to IrcEventNumeric + 42 + if (methodSignature.length() == 8+3 && methodSignature.startsWith("IrcEvent")) { + int num = methodSignature.right(3).toUInt(); + if (num > 0) { + QString numericSig = methodSignature.left(methodSignature.length() - 3) + "Numeric"; + eventType = eventEnum().keyToValue(numericSig.toAscii()); + if (eventType < 0) { + qWarning() << Q_FUNC_INFO << "Could not find EventType" << numericSig << "for handling" << methodSignature; + return -1; + } + eventType += num; + } + } + + if (eventType < 0) + eventType = eventEnum().keyToValue(methodSignature.toAscii()); + if (eventType < 0) { + qWarning() << Q_FUNC_INFO << "Could not find EventType" << methodSignature; return -1; - } - eventType += num; } - } - - if(eventType < 0) - eventType = eventEnum().keyToValue(methodSignature.toAscii()); - if(eventType < 0) { - qWarning() << Q_FUNC_INFO << "Could not find EventType" << methodSignature; - return -1; - } - return eventType; + return eventType; } -void EventManager::registerObject(QObject *object, Priority priority, const QString &methodPrefix, const QString &filterPrefix) { - for(int i = object->metaObject()->methodOffset(); i < object->metaObject()->methodCount(); i++) { - QString methodSignature(object->metaObject()->method(i).signature()); - int eventType = findEventType(methodSignature, methodPrefix); - if(eventType > 0) { - Handler handler(object, i, priority); - registeredHandlers()[eventType].append(handler); - //qDebug() << "Registered event handler for" << methodSignature << "in" << object; - } - eventType = findEventType(methodSignature, filterPrefix); - if(eventType > 0) { - Handler handler(object, i, priority); - registeredFilters()[eventType].append(handler); - //qDebug() << "Registered event filterer for" << methodSignature << "in" << object; +void EventManager::registerObject(QObject *object, Priority priority, const QString &methodPrefix, const QString &filterPrefix) +{ + for (int i = object->metaObject()->methodOffset(); i < object->metaObject()->methodCount(); i++) { + QString methodSignature(object->metaObject()->method(i).signature()); + + int eventType = findEventType(methodSignature, methodPrefix); + if (eventType > 0) { + Handler handler(object, i, priority); + registeredHandlers()[eventType].append(handler); + //qDebug() << "Registered event handler for" << methodSignature << "in" << object; + } + eventType = findEventType(methodSignature, filterPrefix); + if (eventType > 0) { + Handler handler(object, i, priority); + registeredFilters()[eventType].append(handler); + //qDebug() << "Registered event filterer for" << methodSignature << "in" << object; + } } - } } -void EventManager::registerEventFilter(EventType event, QObject *object, const char *slot) { - registerEventHandler(QList() << event, object, slot, NormalPriority, true); + +void EventManager::registerEventFilter(EventType event, QObject *object, const char *slot) +{ + registerEventHandler(QList() << event, object, slot, NormalPriority, true); } -void EventManager::registerEventFilter(QList events, QObject *object, const char *slot) { - registerEventHandler(events, object, slot, NormalPriority, true); + +void EventManager::registerEventFilter(QList events, QObject *object, const char *slot) +{ + registerEventHandler(events, object, slot, NormalPriority, true); } -void EventManager::registerEventHandler(EventType event, QObject *object, const char *slot, Priority priority, bool isFilter) { - registerEventHandler(QList() << event, object, slot, priority, isFilter); + +void EventManager::registerEventHandler(EventType event, QObject *object, const char *slot, Priority priority, bool isFilter) +{ + registerEventHandler(QList() << event, object, slot, priority, isFilter); } -void EventManager::registerEventHandler(QList events, QObject *object, const char *slot, Priority priority, bool isFilter) { - int methodIndex = object->metaObject()->indexOfMethod(slot); - if(methodIndex < 0) { - qWarning() << Q_FUNC_INFO << QString("Slot %1 not found in object %2").arg(slot).arg(object->objectName()); - return; - } - Handler handler(object, methodIndex, priority); - foreach(EventType event, events) { - if(isFilter) { - registeredFilters()[event].append(handler); - qDebug() << "Registered event filter for" << event << "in" << object; - } else { - registeredHandlers()[event].append(handler); - qDebug() << "Registered event handler for" << event << "in" << object; + +void EventManager::registerEventHandler(QList events, QObject *object, const char *slot, Priority priority, bool isFilter) +{ + int methodIndex = object->metaObject()->indexOfMethod(slot); + if (methodIndex < 0) { + qWarning() << Q_FUNC_INFO << QString("Slot %1 not found in object %2").arg(slot).arg(object->objectName()); + return; + } + Handler handler(object, methodIndex, priority); + foreach(EventType event, events) { + if (isFilter) { + registeredFilters()[event].append(handler); + qDebug() << "Registered event filter for" << event << "in" << object; + } + else { + registeredHandlers()[event].append(handler); + qDebug() << "Registered event handler for" << event << "in" << object; + } } - } } -void EventManager::postEvent(Event *event) { - if(sender() && sender()->thread() != this->thread()) { - QueuedQuasselEvent *queuedEvent = new QueuedQuasselEvent(event); - QCoreApplication::postEvent(this, queuedEvent); - } else { - if(_eventQueue.isEmpty()) - // we're currently not processing events - processEvent(event); - else - _eventQueue.append(event); - } -} -void EventManager::customEvent(QEvent *event) { - if(event->type() == QEvent::User) { - QueuedQuasselEvent *queuedEvent = static_cast(event); - processEvent(queuedEvent->event); - event->accept(); - } +void EventManager::postEvent(Event *event) +{ + if (sender() && sender()->thread() != this->thread()) { + QueuedQuasselEvent *queuedEvent = new QueuedQuasselEvent(event); + QCoreApplication::postEvent(this, queuedEvent); + } + else { + if (_eventQueue.isEmpty()) + // we're currently not processing events + processEvent(event); + else + _eventQueue.append(event); + } } -void EventManager::processEvent(Event *event) { - Q_ASSERT(_eventQueue.isEmpty()); - dispatchEvent(event); - // dispatching the event might cause new events to be generated. we process those afterwards. - while(!_eventQueue.isEmpty()) { - dispatchEvent(_eventQueue.first()); - _eventQueue.removeFirst(); - } -} -void EventManager::dispatchEvent(Event *event) { - //qDebug() << "Dispatching" << event; +void EventManager::customEvent(QEvent *event) +{ + if (event->type() == QEvent::User) { + QueuedQuasselEvent *queuedEvent = static_cast(event); + processEvent(queuedEvent->event); + event->accept(); + } +} - // we try handlers from specialized to generic by masking the enum - // build a list sorted by priorities that contains all eligible handlers - QList handlers; - QHash filters; - QSet ignored; - uint type = event->type(); +void EventManager::processEvent(Event *event) +{ + Q_ASSERT(_eventQueue.isEmpty()); + dispatchEvent(event); + // dispatching the event might cause new events to be generated. we process those afterwards. + while (!_eventQueue.isEmpty()) { + dispatchEvent(_eventQueue.first()); + _eventQueue.removeFirst(); + } +} - bool checkDupes = false; - // special handling for numeric IrcEvents - if((type & ~IrcEventNumericMask) == IrcEventNumeric) { - ::IrcEventNumeric *numEvent = static_cast< ::IrcEventNumeric *>(event); - if(!numEvent) - qWarning() << "Invalid event type for IrcEventNumeric!"; - else { - int num = numEvent->number(); - if(num > 0) { - insertHandlers(registeredHandlers().value(type + num), handlers, false); - insertFilters(registeredFilters().value(type + num), filters); - checkDupes = true; - } +void EventManager::dispatchEvent(Event *event) +{ + //qDebug() << "Dispatching" << event; + + // we try handlers from specialized to generic by masking the enum + + // build a list sorted by priorities that contains all eligible handlers + QList handlers; + QHash filters; + QSet ignored; + uint type = event->type(); + + bool checkDupes = false; + + // special handling for numeric IrcEvents + if ((type & ~IrcEventNumericMask) == IrcEventNumeric) { + ::IrcEventNumeric *numEvent = static_cast< ::IrcEventNumeric *>(event); + if (!numEvent) + qWarning() << "Invalid event type for IrcEventNumeric!"; + else { + int num = numEvent->number(); + if (num > 0) { + insertHandlers(registeredHandlers().value(type + num), handlers, false); + insertFilters(registeredFilters().value(type + num), filters); + checkDupes = true; + } + } } - } - - // exact type - insertHandlers(registeredHandlers().value(type), handlers, checkDupes); - insertFilters(registeredFilters().value(type), filters); - - // check if we have a generic handler for the event group - if((type & EventGroupMask) != type) { - insertHandlers(registeredHandlers().value(type & EventGroupMask), handlers, true); - insertFilters(registeredFilters().value(type & EventGroupMask), filters); - } - - // now dispatch the event - QList::const_iterator it; - for(it = handlers.begin(); it != handlers.end() && !event->isStopped(); ++it) { - QObject *obj = it->object; - - if(ignored.contains(obj)) // object has filtered the event - continue; - - if(filters.contains(obj)) { // we have a filter, so let's check if we want to deliver the event - Handler filter = filters.value(obj); - bool result = false; - void *param[] = {Q_RETURN_ARG(bool, result).data(), Q_ARG(Event *, event).data() }; - obj->qt_metacall(QMetaObject::InvokeMetaMethod, filter.methodIndex, param); - if(!result) { - ignored.insert(obj); - continue; // mmmh, event filter told us to not accept - } + + // exact type + insertHandlers(registeredHandlers().value(type), handlers, checkDupes); + insertFilters(registeredFilters().value(type), filters); + + // check if we have a generic handler for the event group + if ((type & EventGroupMask) != type) { + insertHandlers(registeredHandlers().value(type & EventGroupMask), handlers, true); + insertFilters(registeredFilters().value(type & EventGroupMask), filters); } - // finally, deliverance! - void *param[] = {0, Q_ARG(Event *, event).data() }; - obj->qt_metacall(QMetaObject::InvokeMetaMethod, it->methodIndex, param); - } + // now dispatch the event + QList::const_iterator it; + for (it = handlers.begin(); it != handlers.end() && !event->isStopped(); ++it) { + QObject *obj = it->object; + + if (ignored.contains(obj)) // object has filtered the event + continue; + + if (filters.contains(obj)) { // we have a filter, so let's check if we want to deliver the event + Handler filter = filters.value(obj); + bool result = false; + void *param[] = { Q_RETURN_ARG(bool, result).data(), Q_ARG(Event *, event).data() }; + obj->qt_metacall(QMetaObject::InvokeMetaMethod, filter.methodIndex, param); + if (!result) { + ignored.insert(obj); + continue; // mmmh, event filter told us to not accept + } + } + + // finally, deliverance! + void *param[] = { 0, Q_ARG(Event *, event).data() }; + obj->qt_metacall(QMetaObject::InvokeMetaMethod, it->methodIndex, param); + } - // that's it - delete event; + // that's it + delete event; } -void EventManager::insertHandlers(const QList &newHandlers, QList &existing, bool checkDupes) { - foreach(const Handler &handler, newHandlers) { - if(existing.isEmpty()) - existing.append(handler); - else { - // need to insert it at the proper position, but only if we don't yet have a handler for this event and object! - bool insert = true; - QList::iterator insertpos = existing.end(); - QList::iterator it = existing.begin(); - while(it != existing.end()) { - if(checkDupes && handler.object == it->object) { - insert = false; - break; - } - if(insertpos == existing.end() && handler.priority > it->priority) - insertpos = it; - ++it; - } - if(insert) - existing.insert(it, handler); +void EventManager::insertHandlers(const QList &newHandlers, QList &existing, bool checkDupes) +{ + foreach(const Handler &handler, newHandlers) { + if (existing.isEmpty()) + existing.append(handler); + else { + // need to insert it at the proper position, but only if we don't yet have a handler for this event and object! + bool insert = true; + QList::iterator insertpos = existing.end(); + QList::iterator it = existing.begin(); + while (it != existing.end()) { + if (checkDupes && handler.object == it->object) { + insert = false; + break; + } + if (insertpos == existing.end() && handler.priority > it->priority) + insertpos = it; + + ++it; + } + if (insert) + existing.insert(it, handler); + } } - } } + // priority is ignored, and only the first (should be most specialized) filter is being used // fun things could happen if you used the registerEventFilter() methods in the wrong order though -void EventManager::insertFilters(const QList &newFilters, QHash &existing) { - foreach(const Handler &filter, newFilters) { - if(!existing.contains(filter.object)) - existing[filter.object] = filter; - } +void EventManager::insertFilters(const QList &newFilters, QHash &existing) +{ + foreach(const Handler &filter, newFilters) { + if (!existing.contains(filter.object)) + existing[filter.object] = filter; + } } + QMetaEnum EventManager::_enum;