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::EventListenerVector::clear()
{
clearSceneGraphListeners();
clearFixedListeners();
}
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();
}
}