57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
|
#pragma once
|
||
|
|
|
||
|
|
#include <easy2d/core/types.h>
|
||
|
|
#include <easy2d/event/event.h>
|
||
|
|
#include <functional>
|
||
|
|
#include <unordered_map>
|
||
|
|
#include <vector>
|
||
|
|
|
||
|
|
namespace easy2d {
|
||
|
|
|
||
|
|
// ============================================================================
|
||
|
|
// 事件监听器 ID
|
||
|
|
// ============================================================================
|
||
|
|
using ListenerId = uint64_t;
|
||
|
|
|
||
|
|
// ============================================================================
|
||
|
|
// 事件分发器
|
||
|
|
// ============================================================================
|
||
|
|
class EventDispatcher {
|
||
|
|
public:
|
||
|
|
using EventCallback = std::function<void(Event&)>;
|
||
|
|
|
||
|
|
EventDispatcher();
|
||
|
|
~EventDispatcher() = default;
|
||
|
|
|
||
|
|
// 添加监听器
|
||
|
|
ListenerId addListener(EventType type, EventCallback callback);
|
||
|
|
|
||
|
|
// 移除监听器
|
||
|
|
void removeListener(ListenerId id);
|
||
|
|
void removeAllListeners(EventType type);
|
||
|
|
void removeAllListeners();
|
||
|
|
|
||
|
|
// 分发事件
|
||
|
|
void dispatch(Event& event);
|
||
|
|
void dispatch(const Event& event);
|
||
|
|
|
||
|
|
// 处理事件队列
|
||
|
|
void processQueue(class EventQueue& queue);
|
||
|
|
|
||
|
|
// 统计
|
||
|
|
size_t getListenerCount(EventType type) const;
|
||
|
|
size_t getTotalListenerCount() const;
|
||
|
|
|
||
|
|
private:
|
||
|
|
struct Listener {
|
||
|
|
ListenerId id;
|
||
|
|
EventType type;
|
||
|
|
EventCallback callback;
|
||
|
|
};
|
||
|
|
|
||
|
|
std::unordered_map<EventType, std::vector<Listener>> listeners_;
|
||
|
|
ListenerId nextId_;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace easy2d
|