1 files changed, 97 insertions, 0 deletions
diff --git a/CruUI/timer.cpp b/CruUI/timer.cpp
new file mode 100644
index 00000000..5eb803c7
--- /dev/null
+++ b/CruUI/timer.cpp
@@ -0,0 +1,97 @@
+#include "timer.h"
+
+namespace cru
+{
+	TimerManager* TimerManager::instance_ = nullptr;
+
+	TimerManager* TimerManager::GetInstance()
+	{
+		return instance_;
+	}
+
+	TimerManager::TimerManager()
+	{
+		instance_ = this;
+	}
+
+	TimerManager::~TimerManager()
+	{
+		instance_ = nullptr;
+	}
+
+	UINT_PTR TimerManager::CreateTimer(const UINT microseconds, const bool loop, const TimerAction & action)
+	{
+		auto id = ::SetTimer(nullptr, 0, microseconds, nullptr);
+		if (loop)
+			map_[id] = action;
+		else
+			map_[id] = [this, action, id]() {
+				action();
+				this->KillTimer(id);
+			};
+
+		return id;
+	}
+
+	void TimerManager::KillTimer(const UINT_PTR id)
+	{
+		const auto find_result = map_.find(id);
+		if (find_result != map_.cend())
+		{
+			::KillTimer(nullptr, id);
+			map_.erase(find_result);
+		}
+	}
+
+	std::optional<TimerAction> TimerManager::GetAction(const UINT_PTR id)
+	{
+		auto find_result = map_.find(id);
+		if (find_result == map_.cend())
+			return std::nullopt;
+		return find_result->second;
+	}
+
+	class TimerTaskImpl : public ITimerTask
+	{
+	public:
+		explicit TimerTaskImpl(UINT_PTR id);
+	    TimerTaskImpl(const TimerTaskImpl& other) = delete;
+	    TimerTaskImpl(TimerTaskImpl&& other) = delete;
+	    TimerTaskImpl& operator=(const TimerTaskImpl& other) = delete;
+	    TimerTaskImpl& operator=(TimerTaskImpl&& other) = delete;
+		~TimerTaskImpl() override = default;
+
+		void Cancel() override;
+
+	private:
+		UINT_PTR id_;
+	};
+
+	TimerTaskImpl::TimerTaskImpl(const UINT_PTR id)
+		: id_(id)
+	{
+
+	}
+
+    void TimerTaskImpl::Cancel()
+	{
+		TimerManager::GetInstance()->KillTimer(id_);
+	}
+
+	inline UINT SecondToMicroSecond(const double seconds)
+	{
+		return static_cast<UINT>(seconds * 1000);
+	}
+
+	std::shared_ptr<ITimerTask> SetTimeout(const double seconds, const TimerAction & action)
+	{
+		auto id = TimerManager::GetInstance()->CreateTimer(SecondToMicroSecond(seconds), false, action);
+		return std::make_shared<TimerTaskImpl>(id);
+	}
+
+	std::shared_ptr<ITimerTask> SetInterval(const double seconds, const TimerAction & action)
+	{
+		auto id = TimerManager::GetInstance()->CreateTimer(SecondToMicroSecond(seconds), true, action);
+		return std::make_shared<TimerTaskImpl>(id);
+	}
+}