Catcrafts/Crafter.Event
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This commit is contained in:
Jorijn van der Graaf 2025-11-25 20:47:57 +01:00
commit 834ba5b137
1 changed files with 42 additions and 56 deletions
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98
interfaces/Crafter.Event.cppm
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@ -55,21 +55,24 @@ namespace Crafter {
std::function<void()> function;
};
export template<typename T>
class Event {
public:
// Base implementation for Event<T> - common functionality
template<typename T>
class EventBase {
protected:
std::map<int, std::vector<EventListener<T>*>> listeners;
Event() = default;
Event(Event&& other) : listeners(std::move(other.listeners)) {
public:
EventBase() = default;
EventBase(EventBase&& other) : listeners(std::move(other.listeners)) {
for (const auto& listenerSlice : listeners) {
for (const auto& listener : listenerSlice.second) {
listener->eventToListenTo = this;
}
}
}
Event(Event&) = delete;
Event& operator=(Event&) = delete;
~Event() {
EventBase(EventBase&) = delete;
EventBase& operator=(EventBase&) = delete;
virtual ~EventBase() {
for (const auto& listenerSlice : listeners) {
for (const auto& listener : listenerSlice.second) {
listener->eventToListenTo = nullptr;
@ -87,11 +90,38 @@ namespace Crafter {
}
void RemoveListener(EventListener<T>* listener) {
listeners[listener->priority].erase(std::remove(listeners[listener->priority].begin(), listeners[listener->priority].end(), listener), listeners[listener->priority].end());
listeners[listener->priority].erase(
std::remove(listeners[listener->priority].begin(),
listeners[listener->priority].end(),
listener),
listeners[listener->priority].end()
);
}
};
// Specialized Event<void> with different Invoke signature
export template<>
class Event<void> : public EventBase<void> {
public:
using EventBase<void>::EventBase;
void Invoke() {
for (const auto& listenerSlice : this->listeners) {
for (const auto& listener : listenerSlice.second) {
listener->function();
}
}
}
};
// Generic Event<T> with Invoke signature
export template<typename T>
class Event : public EventBase<T> {
public:
using EventBase<T>::EventBase;
void Invoke(T data) {
for (const auto& listenerSlice : listeners) {
for (const auto& listenerSlice : this->listeners) {
for (const auto& listener : listenerSlice.second) {
listener->function(data);
}
@ -99,6 +129,7 @@ namespace Crafter {
}
};
// Common implementations for EventListener<T>
template<typename T> void EventListener<T>::SetEvent(Event<T>* eventToListenTo, std::function<void(T)> listener, int priority)
{
this->priority = priority;
@ -124,52 +155,7 @@ namespace Crafter {
eventToListenTo = nullptr;
}
export template<>
class Event<void> {
public:
std::map<int, std::vector<EventListener<void>*>> listeners;
Event() = default;
Event(Event&& other) : listeners(std::move(other.listeners)) {
for (const auto& listenerSlice : listeners) {
for (const auto& listener : listenerSlice.second) {
listener->eventToListenTo = this;
}
}
}
Event(Event&) = delete;
Event& operator=(Event&) = delete;
~Event() {
for (const auto& listenerSlice : listeners) {
const std::vector<EventListener<void>*> slice = listenerSlice.second;
for (const auto& listener : slice) {
listener->eventToListenTo = nullptr;
}
}
}
void AddListener(EventListener<void>* listener, int priority = 0) {
if (listeners.contains(priority)) {
listeners[priority].push_back(listener);
}
else {
listeners[priority] = std::vector<EventListener<void>*>{ listener };
}
}
void RemoveListener(EventListener<void>* listener) {
listeners[listener->priority].erase(std::remove(listeners[listener->priority].begin(), listeners[listener->priority].end(), listener), listeners[listener->priority].end());
}
void Invoke() {
for (const auto& listenerSlice : listeners) {
const std::vector<EventListener<void>*> slice = listenerSlice.second;
for (const auto& listener : slice) {
listener->function();
}
}
}
};
// Specific implementations for EventListener<void>
void EventListener<void>::SetEvent(Event<void>* eventToListenTo, std::function<void()> listener, int priority)
{
this->priority = priority;