48 lines
1.3 KiB
C++
48 lines
1.3 KiB
C++
#pragma once
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#include <vector>
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#include <functional>
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namespace hex {
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enum class Events {
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DataChanged,
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PatternChanged,
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FileDropped,
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ByteSelected
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};
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struct EventHandler {
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void *sender;
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Events eventType;
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std::function<void(const void*)> callback;
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};
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class EventManager {
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public:
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void post(Events eventType, const void *userData) {
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for (auto &handler : this->m_eventHandlers)
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if (eventType == handler.eventType)
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handler.callback(userData);
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}
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void subscribe(Events eventType, void *sender, std::function<void(const void*)> callback) {
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for (auto &handler : this->m_eventHandlers)
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if (eventType == handler.eventType && sender == handler.sender)
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return;
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this->m_eventHandlers.push_back(EventHandler { sender, eventType, callback });
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}
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void unsubscribe(Events eventType, void *sender) {
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std::erase_if(this->m_eventHandlers, [&eventType, &sender](EventHandler handler) {
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return eventType == handler.eventType && sender == handler.sender;
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});
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}
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private:
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std::vector<EventHandler> m_eventHandlers;
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};
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} |