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 LuaTouchEventManager::visitTarget(Node* node, bool isRootNode)
{
int i = 0;
auto& children = node->getChildren();
auto childrenCount = children.size();
if (childrenCount > 0)
{
Node* child = nullptr;
// visit children zOrder < 0
for (; i < childrenCount; i++)
{
child = children.at(i);
if (child && child->getLocalZOrder() < 0)
visitTarget(child, false);
else
break;
}
if (_nodeLuaEventNodeMap.find(node) != _nodeLuaEventNodeMap.end())
{
_globalZOrderNodeMap[node->getGlobalZOrder()].push_back(node);
}
for (; i < childrenCount; i++)
{
child = children.at(i);
if (child)
visitTarget(child, false);
}
}
else
{
if (_nodeLuaEventNodeMap.find(node) != _nodeLuaEventNodeMap.end())
{
_globalZOrderNodeMap[node->getGlobalZOrder()].push_back(node);
}
}
if (isRootNode)
{
std::vector<float> globalZOrders;
globalZOrders.reserve(_globalZOrderNodeMap.size());
for (const auto& e : _globalZOrderNodeMap)
{
globalZOrders.push_back(e.first);
}
std::sort(globalZOrders.begin(), globalZOrders.end(), [](const float a, const float b) {
return a < b;
});
for (const auto& globalZ : globalZOrders)
{
for (const auto& n : _globalZOrderNodeMap[globalZ])
{
_nodePriorityMap[n] = ++_nodePriorityIndex;
}
}
_globalZOrderNodeMap.clear();
}
}
