void EventDispatcher::sortEventListenersOfSceneGraphPriority(const EventListener::ListenerID& listenerID, Node* rootNode)
{
auto listeners = getListeners(listenerID);
if (listeners == nullptr)
return;
auto sceneGraphListeners = listeners->getSceneGraphPriorityListeners();
if (sceneGraphListeners == nullptr)
return;
// Reset priority index
_nodePriorityIndex = 0;
_nodePriorityMap.clear();
visitTarget(rootNode, true);
// After sort: priority < 0, > 0
std::sort(sceneGraphListeners->begin(), sceneGraphListeners->end(), [this](const EventListener* l1, const EventListener* l2) {
return _nodePriorityMap[l1->getAssociatedNode()] > _nodePriorityMap[l2->getAssociatedNode()];
});
#if DUMP_LISTENER_ITEM_PRIORITY_INFO
log("-----------------------------------");
for (auto& l : *sceneGraphListeners)
{
log("listener priority: node ([%s]%p), priority (%d)", typeid(*l->_node).name(), l->_node, _nodePriorityMap[l->_node]);
}
#endif
}
void EventDispatcher::removeEventListenersForListenerID(const EventListener::ListenerID& listenerID)
{
auto listenerItemIter = _listeners.find(listenerID);
if (listenerItemIter != _listeners.end())
{
auto listeners = listenerItemIter->second;
auto fixedPriorityListeners = listeners->getFixedPriorityListeners();
auto sceneGraphPriorityListeners = listeners->getSceneGraphPriorityListeners();
auto removeAllListenersInVector = [&](std::vector<EventListener*>* listenerVector){
if (listenerVector == nullptr)
return;
for (auto iter = listenerVector->begin(); iter != listenerVector->end();)
{
auto l = *iter;
l->setRegistered(false);
if (l->getSceneGraphPriority() != nullptr)
{
dissociateNodeAndEventListener(l->getSceneGraphPriority(), l);
}
if (_inDispatch == 0)
{
iter = listenerVector->erase(iter);
CC_SAFE_RELEASE(l);
}
else
{
++iter;
}
}
};
removeAllListenersInVector(sceneGraphPriorityListeners);
removeAllListenersInVector(fixedPriorityListeners);
if (!_inDispatch)
{
listeners->clear();
delete listeners;
_listeners.erase(listenerItemIter);
_priorityDirtyFlagMap.erase(listenerID);
}
}
for (auto iter = _toAddedListeners.begin(); iter != _toAddedListeners.end();)
{
if ((*iter)->getListenerID() == listenerID)
{
(*iter)->release();
iter = _toAddedListeners.erase(iter);
}
else
{
++iter;
}
}
}
void EventDispatcher::cleanToRemovedListeners()
{
for (auto& l : _toRemovedListeners)
{
auto listenersIter = _listenerMap.find(l->getListenerID());
if (listenersIter == _listenerMap.end())
{
releaseListener(l);
continue;
}
bool find = false;
auto listeners = listenersIter->second;
auto fixedPriorityListeners = listeners->getFixedPriorityListeners();
auto sceneGraphPriorityListeners = listeners->getSceneGraphPriorityListeners();
if (sceneGraphPriorityListeners)
{
auto machedIter = std::find(sceneGraphPriorityListeners->begin(), sceneGraphPriorityListeners->end(), l);
if (machedIter != sceneGraphPriorityListeners->end())
{
find = true;
releaseListener(l);
sceneGraphPriorityListeners->erase(machedIter);
}
}
if (fixedPriorityListeners)
{
auto machedIter = std::find(fixedPriorityListeners->begin(), fixedPriorityListeners->end(), l);
if (machedIter != fixedPriorityListeners->end())
{
find = true;
releaseListener(l);
fixedPriorityListeners->erase(machedIter);
}
}
if (find)
{
if (sceneGraphPriorityListeners && sceneGraphPriorityListeners->empty())
{
listeners->clearSceneGraphListeners();
}
if (fixedPriorityListeners && fixedPriorityListeners->empty())
{
listeners->clearFixedListeners();
}
}
else
CC_SAFE_RELEASE(l);
}
_toRemovedListeners.clear();
}
void EventDispatcher::removeEventListener(EventListener* listener)
{
if (listener == nullptr)
return;
bool isFound = false;
auto removeListenerInVector = [&](std::vector<EventListener*>* listeners){
if (listeners == nullptr)
return;
for (auto iter = listeners->begin(); iter != listeners->end(); ++iter)
{
auto l = *iter;
if (l == listener)
{
CC_SAFE_RETAIN(l);
l->setRegistered(false);
if (l->getAssociatedNode() != nullptr)
{
dissociateNodeAndEventListener(l->getAssociatedNode(), l);
l->setAssociatedNode(nullptr); // nullptr out the node pointer so we don't have any dangling pointers to destroyed nodes.
}
if (_inDispatch == 0)
{
iter = listeners->erase(iter);
releaseListener(l);
}
else
{
_toRemovedListeners.push_back(l);
}
isFound = true;
break;
}
}
};
for (auto iter = _listenerMap.begin(); iter != _listenerMap.end();)
{
auto listeners = iter->second;
auto fixedPriorityListeners = listeners->getFixedPriorityListeners();
auto sceneGraphPriorityListeners = listeners->getSceneGraphPriorityListeners();
removeListenerInVector(sceneGraphPriorityListeners);
if (isFound)
{
// fixed #4160: Dirty flag need to be updated after listeners were removed.
setDirty(listener->getListenerID(), DirtyFlag::SCENE_GRAPH_PRIORITY);
}
else
{
removeListenerInVector(fixedPriorityListeners);
if (isFound)
{
setDirty(listener->getListenerID(), DirtyFlag::FIXED_PRIORITY);
}
}
#if CC_NODE_DEBUG_VERIFY_EVENT_LISTENERS
CCASSERT(_inDispatch != 0 ||
!sceneGraphPriorityListeners ||
std::count(sceneGraphPriorityListeners->begin(), sceneGraphPriorityListeners->end(), listener) == 0,
"Listener should be in no lists after this is done if we're not currently in dispatch mode.");
CCASSERT(_inDispatch != 0 ||
!fixedPriorityListeners ||
std::count(fixedPriorityListeners->begin(), fixedPriorityListeners->end(), listener) == 0,
"Listener should be in no lists after this is done if we're not currently in dispatch mode.");
#endif
if (iter->second->empty())
{
_priorityDirtyFlagMap.erase(listener->getListenerID());
auto list = iter->second;
iter = _listenerMap.erase(iter);
CC_SAFE_DELETE(list);
}
else
{
++iter;
}
if (isFound)
break;
}
if (isFound)
{
releaseListener(listener);
}
else
{
for(auto iter = _toAddedListeners.begin(); iter != _toAddedListeners.end(); ++iter)
{
if (*iter == listener)
{
listener->setRegistered(false);
releaseListener(listener);
_toAddedListeners.erase(iter);
break;
}
}
}
}
void EventDispatcher::removeEventListenersForListenerID(const EventListener::ListenerID& listenerID)
{
auto listenerItemIter = _listenerMap.find(listenerID);
if (listenerItemIter != _listenerMap.end())
{
auto listeners = listenerItemIter->second;
auto fixedPriorityListeners = listeners->getFixedPriorityListeners();
auto sceneGraphPriorityListeners = listeners->getSceneGraphPriorityListeners();
auto removeAllListenersInVector = [&](std::vector<EventListener*>* listenerVector){
if (listenerVector == nullptr)
return;
for (auto iter = listenerVector->begin(); iter != listenerVector->end();)
{
auto l = *iter;
l->setRegistered(false);
if (l->getAssociatedNode() != nullptr)
{
dissociateNodeAndEventListener(l->getAssociatedNode(), l);
l->setAssociatedNode(nullptr); // nullptr out the node pointer so we don't have any dangling pointers to destroyed nodes.
}
if (_inDispatch == 0)
{
iter = listenerVector->erase(iter);
releaseListener(l);
}
else
{
++iter;
}
}
};
removeAllListenersInVector(sceneGraphPriorityListeners);
removeAllListenersInVector(fixedPriorityListeners);
// Remove the dirty flag according the 'listenerID'.
// No need to check whether the dispatcher is dispatching event.
_priorityDirtyFlagMap.erase(listenerID);
if (!_inDispatch)
{
listeners->clear();
delete listeners;
_listenerMap.erase(listenerItemIter);
}
}
for (auto iter = _toAddedListeners.begin(); iter != _toAddedListeners.end();)
{
if ((*iter)->getListenerID() == listenerID)
{
(*iter)->setRegistered(false);
releaseListener(*iter);
iter = _toAddedListeners.erase(iter);
}
else
{
++iter;
}
}
}
void EventDispatcher::updateListeners(Event* event)
{
CCASSERT(_inDispatch > 0, "If program goes here, there should be event in dispatch.");
if (_inDispatch > 1)
return;
auto onUpdateListeners = [this](const EventListener::ListenerID& listenerID)
{
auto listenersIter = _listenerMap.find(listenerID);
if (listenersIter == _listenerMap.end())
return;
auto listeners = listenersIter->second;
auto fixedPriorityListeners = listeners->getFixedPriorityListeners();
auto sceneGraphPriorityListeners = listeners->getSceneGraphPriorityListeners();
if (sceneGraphPriorityListeners)
{
for (auto iter = sceneGraphPriorityListeners->begin(); iter != sceneGraphPriorityListeners->end();)
{
auto l = *iter;
if (!l->isRegistered())
{
iter = sceneGraphPriorityListeners->erase(iter);
// if item in toRemove list, remove it from the list
auto matchIter = std::find(_toRemovedListeners.begin(), _toRemovedListeners.end(), l);
if (matchIter != _toRemovedListeners.end())
_toRemovedListeners.erase(matchIter);
releaseListener(l);
}
else
{
++iter;
}
}
}
if (fixedPriorityListeners)
{
for (auto iter = fixedPriorityListeners->begin(); iter != fixedPriorityListeners->end();)
{
auto l = *iter;
if (!l->isRegistered())
{
iter = fixedPriorityListeners->erase(iter);
// if item in toRemove list, remove it from the list
auto matchIter = std::find(_toRemovedListeners.begin(), _toRemovedListeners.end(), l);
if (matchIter != _toRemovedListeners.end())
_toRemovedListeners.erase(matchIter);
releaseListener(l);
}
else
{
++iter;
}
}
}
if (sceneGraphPriorityListeners && sceneGraphPriorityListeners->empty())
{
listeners->clearSceneGraphListeners();
}
if (fixedPriorityListeners && fixedPriorityListeners->empty())
{
listeners->clearFixedListeners();
}
};
if (event->getType() == Event::Type::TOUCH)
{
onUpdateListeners(EventListenerTouchOneByOne::LISTENER_ID);
onUpdateListeners(EventListenerTouchAllAtOnce::LISTENER_ID);
}
else
{
onUpdateListeners(__getListenerID(event));
}
CCASSERT(_inDispatch == 1, "_inDispatch should be 1 here.");
for (auto iter = _listenerMap.begin(); iter != _listenerMap.end();)
{
if (iter->second->empty())
{
_priorityDirtyFlagMap.erase(iter->first);
delete iter->second;
iter = _listenerMap.erase(iter);
}
else
{
++iter;
}
}
if (!_toAddedListeners.empty())
{
for (auto& listener : _toAddedListeners)
{
forceAddEventListener(listener);
}
_toAddedListeners.clear();
}
if (!_toRemovedListeners.empty())
{
cleanToRemovedListeners();
}
}
void EventDispatcher::updateListeners(Event* event)
{
auto onUpdateListeners = [this](const EventListener::ListenerID& listenerID)
{
auto listenersIter = _listeners.find(listenerID);
if (listenersIter == _listeners.end())
return;
auto listeners = listenersIter->second;
auto fixedPriorityListeners = listeners->getFixedPriorityListeners();
auto sceneGraphPriorityListeners = listeners->getSceneGraphPriorityListeners();
if (sceneGraphPriorityListeners)
{
for (auto iter = sceneGraphPriorityListeners->begin(); iter != sceneGraphPriorityListeners->end();)
{
auto l = *iter;
if (!l->isRegistered())
{
iter = sceneGraphPriorityListeners->erase(iter);
l->release();
}
else
{
++iter;
}
}
}
if (fixedPriorityListeners)
{
for (auto iter = fixedPriorityListeners->begin(); iter != fixedPriorityListeners->end();)
{
auto l = *iter;
if (!l->isRegistered())
{
iter = fixedPriorityListeners->erase(iter);
l->release();
}
else
{
++iter;
}
}
}
if (sceneGraphPriorityListeners && sceneGraphPriorityListeners->empty())
{
listeners->clearSceneGraphListeners();
}
if (fixedPriorityListeners && fixedPriorityListeners->empty())
{
listeners->clearFixedListeners();
}
if (listenersIter->second->empty())
{
_priorityDirtyFlagMap.erase(listenersIter->first);
delete listenersIter->second;
_listeners.erase(listenersIter);
}
};
if (event->getType() == Event::Type::TOUCH)
{
onUpdateListeners(EventListenerTouchOneByOne::LISTENER_ID);
onUpdateListeners(EventListenerTouchAllAtOnce::LISTENER_ID);
}
else
{
onUpdateListeners(__getListenerID(event));
}
if (!_toAddedListeners.empty())
{
for (auto& listener : _toAddedListeners)
{
forceAddEventListener(listener);
}
_toAddedListeners.clear();
}
}
void EventDispatcher::removeEventListener(EventListener* listener)
{
if (listener == nullptr)
return;
bool isFound = false;
auto removeListenerInVector = [&](std::vector<EventListener*>* listeners){
if (listeners == nullptr)
return;
for (auto iter = listeners->begin(); iter != listeners->end(); ++iter)
{
auto l = *iter;
if (l == listener)
{
CC_SAFE_RETAIN(l);
l->setRegistered(false);
if (l->getSceneGraphPriority() != nullptr)
{
dissociateNodeAndEventListener(l->getSceneGraphPriority(), l);
}
if (_inDispatch == 0)
{
listeners->erase(iter);
CC_SAFE_RELEASE(l);
}
isFound = true;
break;
}
}
};
for (auto iter = _listeners.begin(); iter != _listeners.end();)
{
auto listeners = iter->second;
auto fixedPriorityListeners = listeners->getFixedPriorityListeners();
auto sceneGraphPriorityListeners = listeners->getSceneGraphPriorityListeners();
removeListenerInVector(sceneGraphPriorityListeners);
if (!isFound)
{
removeListenerInVector(fixedPriorityListeners);
}
if (iter->second->empty())
{
_priorityDirtyFlagMap.erase(listener->getListenerID());
auto list = iter->second;
iter = _listeners.erase(iter);
CC_SAFE_DELETE(list);
}
else
{
++iter;
}
if (isFound)
break;
}
if (isFound)
{
CC_SAFE_RELEASE(listener);
}
else
{
for(auto iter = _toAddedListeners.begin(); iter != _toAddedListeners.end(); ++iter)
{
if (*iter == listener)
{
listener->release();
_toAddedListeners.erase(iter);
break;
}
}
}
}