/***************************************************************************
- * Copyright (C) 2005-2010 by the Quassel Project *
+ * Copyright (C) 2005-2018 by the Quassel Project *
* devel@quassel-irc.org *
* *
* This program is free software; you can redistribute it and/or modify *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#include "eventmanager.h"
#include "event.h"
#include "ircevent.h"
-EventManager::EventManager(QObject *parent) : QObject(parent) {
+// ============================================================
+// QueuedEvent
+// ============================================================
+class QueuedQuasselEvent : public QEvent
+{
+public:
+ QueuedQuasselEvent(Event *event)
+ : QEvent(QEvent::User), event(event) {}
+ Event *event;
+};
+
+
+// ============================================================
+// EventManager
+// ============================================================
+EventManager::EventManager(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;
}
-EventManager::~EventManager() {
- // pending events won't be delivered anymore, but we do need to delete them
- qDeleteAll(_eventQueue);
+
+EventManager::EventType EventManager::eventTypeByName(const QString &name)
+{
+ int val = eventEnum().keyToValue(name.toLatin1());
+ return (val == -1) ? Invalid : static_cast<EventType>(val);
}
-QMetaEnum EventManager::eventEnum() const {
- if(!_enum.isValid()) {
- int eventEnumIndex = metaObject()->indexOfEnumerator("EventType");
- Q_ASSERT(eventEnumIndex >= 0);
- _enum = metaObject()->enumerator(eventEnumIndex);
- Q_ASSERT(_enum.isValid());
- }
- return _enum;
+
+EventManager::EventType EventManager::eventGroupByName(const QString &name)
+{
+ EventType type = eventTypeByName(name);
+ return type == Invalid ? Invalid : static_cast<EventType>(type & EventGroupMask);
}
-EventManager::EventType EventManager::eventTypeByName(const QString &name) const {
- int val = eventEnum().keyToValue(name.toLatin1());
- return (val == -1) ? Invalid : static_cast<EventType>(val);
+
+QString EventManager::enumName(EventType type)
+{
+ return eventEnum().valueToKey(type);
}
-EventManager::EventType EventManager::eventGroupByName(const QString &name) const {
- EventType type = eventTypeByName(name);
- return type == Invalid? Invalid : static_cast<EventType>(type & EventGroupMask);
+
+QString EventManager::enumName(int type)
+{
+ return eventEnum().valueToKey(type);
}
-QString EventManager::enumName(EventType type) const {
- 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);
}
+
/* 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*
with the actual class. Possibly (optionally) using rtti...
*/
-int EventManager::findEventType(const QString &methodSignature_, const QString &methodPrefix) const {
- if(!methodSignature_.startsWith(methodPrefix))
- return -1;
-
- QString methodSignature = methodSignature_;
-
- methodSignature = methodSignature.section('(',0,0); // chop the attribute list
- methodSignature = methodSignature.mid(methodPrefix.length()); // strip prefix
+int EventManager::findEventType(const QString &methodSignature_, const QString &methodPrefix) const
+{
+ if (!methodSignature_.startsWith(methodPrefix))
+ return -1;
- int eventType = -1;
+ QString methodSignature = methodSignature_;
+
+ methodSignature = methodSignature.section('(', 0, 0); // chop the attribute list
+ methodSignature = methodSignature.mid(methodPrefix.length()); // strip prefix
+
+ 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.toLatin1());
+ if (eventType < 0) {
+ qWarning() << Q_FUNC_INFO << "Could not find EventType" << numericSig << "for handling" << methodSignature;
+ return -1;
+ }
+ eventType += num;
+ }
+ }
- // 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;
+ if (eventType < 0)
+ eventType = eventEnum().keyToValue(methodSignature.toLatin1());
+ 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++) {
+#if QT_VERSION >= 0x050000
+ QString methodSignature = object->metaObject()->method(i).methodSignature();
+#else
+ QString methodSignature = object->metaObject()->method(i).signature();
+#endif
+
+ 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<EventType>() << event, object, slot, NormalPriority, true);
+
+void EventManager::registerEventFilter(EventType event, QObject *object, const char *slot)
+{
+ registerEventHandler(QList<EventType>() << event, object, slot, NormalPriority, true);
}
-void EventManager::registerEventFilter(QList<EventType> events, QObject *object, const char *slot) {
- registerEventHandler(events, object, slot, NormalPriority, true);
+
+void EventManager::registerEventFilter(QList<EventType> 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<EventType>() << event, object, slot, priority, isFilter);
+
+void EventManager::registerEventHandler(EventType event, QObject *object, const char *slot, Priority priority, bool isFilter)
+{
+ registerEventHandler(QList<EventType>() << event, object, slot, priority, isFilter);
}
-void EventManager::registerEventHandler(QList<EventType> 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<EventType> 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;
+ }
}
- }
}
-// not threadsafe! if we should want that, we need to add a mutexed queue somewhere in this general area.
-void EventManager::sendEvent(Event *event) {
- // qDebug() << "Sending" << event;
- _eventQueue.append(event);
- if(_eventQueue.count() == 1) // we're not currently processing another event
- processEvents();
-}
-void EventManager::customEvent(QEvent *event) {
- if(event->type() == QEvent::User) {
- processEvents();
- 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::processEvents() {
- // we only process one event at a time for now, and let Qt's own event processing come in between
- if(_eventQueue.isEmpty())
- return;
- dispatchEvent(_eventQueue.first());
- _eventQueue.removeFirst();
- if(_eventQueue.count())
- QCoreApplication::postEvent(this, new QEvent(QEvent::User));
+
+void EventManager::customEvent(QEvent *event)
+{
+ if (event->type() == QEvent::User) {
+ QueuedQuasselEvent *queuedEvent = static_cast<QueuedQuasselEvent *>(event);
+ processEvent(queuedEvent->event);
+ event->accept();
+ }
}
-void EventManager::dispatchEvent(Event *event) {
- //qDebug() << "Dispatching" << event;
- // we try handlers from specialized to generic by masking the enum
+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();
+ }
+}
- // build a list sorted by priorities that contains all eligible handlers
- QList<Handler> handlers;
- QHash<QObject *, Handler> filters;
- QSet<QObject *> ignored;
- uint type = event->type();
- // 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);
- insertFilters(registeredFilters().value(type + num), filters);
- }
- }
- }
-
- // exact type
- insertHandlers(registeredHandlers().value(type), handlers);
- 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);
- insertFilters(registeredFilters().value(type & EventGroupMask), filters);
- }
-
- // now dispatch the event
- QList<Handler>::const_iterator it = handlers.begin();
- while(it != handlers.end() && !event->isStopped()) {
- QObject *obj = it->object;
-
- if(ignored.contains(obj)) // we only deliver an event once to any given object
- 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);
- ignored.insert(obj); // don't try to deliver the event again either way
- if(!result)
- continue; // mmmh, event filter told us to not accept
+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<Handler> handlers;
+ QHash<QObject *, Handler> filters;
+ QSet<QObject *> 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;
+ }
+ }
}
- // finally, deliverance!
- void *param[] = {0, Q_ARG(Event *, event).data() };
- obj->qt_metacall(QMetaObject::InvokeMetaMethod, it->methodIndex, param);
+ // exact type
+ insertHandlers(registeredHandlers().value(type), handlers, checkDupes);
+ insertFilters(registeredFilters().value(type), filters);
- ++it;
- }
+ // 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<Handler>::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<Handler> &newHandlers, QList<Handler> &existing) {
- foreach(const Handler &handler, newHandlers) {
- if(existing.isEmpty())
- existing.append(handler);
- else {
- // need to insert it at the proper position
- QList<Handler>::iterator it = existing.begin();
- while(it != existing.end()) {
- if(handler.priority > it->priority)
- break;
- ++it;
- }
- existing.insert(it, handler);
+
+void EventManager::insertHandlers(const QList<Handler> &newHandlers, QList<Handler> &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<Handler>::iterator insertpos = existing.end();
+ QList<Handler>::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<Handler> &newFilters, QHash<QObject *, Handler> &existing) {
- foreach(const Handler &filter, newFilters) {
- if(!existing.contains(filter.object))
- existing[filter.object] = filter;
- }
+void EventManager::insertFilters(const QList<Handler> &newFilters, QHash<QObject *, Handler> &existing)
+{
+ foreach(const Handler &filter, newFilters) {
+ if (!existing.contains(filter.object))
+ existing[filter.object] = filter;
+ }
}
+
+
+QMetaEnum EventManager::_enum;
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