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#include "timer.h"
namespace cru
{
UINT_PTR TimerManager::CreateTimer(const UINT milliseconds, const bool loop, ActionPtr action)
{
const auto id = current_count_++;
::SetTimer(Application::GetInstance()->GetGodWindow()->GetHandle(), id, milliseconds, nullptr);
if (loop)
map_[id] = std::move(action);
else
map_[id] = CreateActionPtr([this, action, id]() mutable {
(*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(Application::GetInstance()->GetGodWindow()->GetHandle(), id);
// When timer is killed in tick action, we need to retain the action itself until the action finishes, so InvokeLater!
InvokeLater([=]
{
map_.erase(find_result);
});
}
}
ActionPtr TimerManager::GetAction(const UINT_PTR id)
{
const auto find_result = map_.find(id);
if (find_result == map_.cend())
return nullptr;
return find_result->second;
}
class TimerTaskImpl : public virtual ICancelable
{
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_);
}
TimerTask SetTimeout(std::chrono::milliseconds milliseconds, ActionPtr action)
{
auto id = TimerManager::GetInstance()->CreateTimer(static_cast<UINT>(milliseconds.count()), false, std::move(action));
return std::make_shared<TimerTaskImpl>(id);
}
TimerTask SetInterval(std::chrono::milliseconds milliseconds, ActionPtr action)
{
auto id = TimerManager::GetInstance()->CreateTimer(static_cast<UINT>(milliseconds.count()), true, std::move(action));
return std::make_shared<TimerTaskImpl>(id);
}
}
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