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Diffstat (limited to 'src/managers/HookSystemManager.hpp')
| -rw-r--r-- | src/managers/HookSystemManager.hpp | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/src/managers/HookSystemManager.hpp b/src/managers/HookSystemManager.hpp new file mode 100644 index 00000000..57f1e58b --- /dev/null +++ b/src/managers/HookSystemManager.hpp @@ -0,0 +1,36 @@ +#pragma once + +#include "../defines.hpp" + +#include <unordered_map> +#include <any> +#include <list> + +// global typedef for hooked functions. Passes itself as a ptr when called, and `data` additionally. +typedef std::function<void(void*, std::any)> HOOK_CALLBACK_FN; + +#define EMIT_HOOK_EVENT(name, param) \ + { \ + static auto* const PEVENTVEC = g_pHookSystem->getVecForEvent(name); \ + g_pHookSystem->emit(PEVENTVEC, param); \ + } + +class CHookSystemManager { + public: + CHookSystemManager(); + + // returns the pointer to the function + HOOK_CALLBACK_FN* hookDynamic(const std::string& event, HOOK_CALLBACK_FN fn); + void hookStatic(const std::string& event, HOOK_CALLBACK_FN* fn); + void unhook(HOOK_CALLBACK_FN* fn); + + void emit(const std::vector<HOOK_CALLBACK_FN*>* callbacks, std::any data = 0); + std::vector<HOOK_CALLBACK_FN*>* getVecForEvent(const std::string& event); + + private: + // todo: this is slow. Maybe static ptrs should be somehow allowed. unique ptr for vec? + std::list<std::pair<std::string, std::vector<HOOK_CALLBACK_FN*>>> m_lpRegisteredHooks; + std::list<HOOK_CALLBACK_FN> m_lCallbackFunctions; +}; + +inline std::unique_ptr<CHookSystemManager> g_pHookSystem;
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