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#ifndef COMPONENTS_LOADINGLISTENER_ASYNCLISTENER_H
#define COMPONENTS_LOADINGLISTENER_ASYNCLISTENER_H
#include <mutex>
#include <optional>
#include <string>
#include "loadinglistener.hpp"
namespace Loading
{
class AsyncListener : public Listener
{
public:
AsyncListener(Listener& baseListener)
: mBaseListener(baseListener)
{
}
void setLabel(const std::string& label, bool important) override
{
std::lock_guard<std::mutex> guard(mMutex);
mLabelUpdate = label;
mImportantLabel = important;
}
void setProgressRange(size_t range) override
{
std::lock_guard<std::mutex> guard(mMutex);
mRangeUpdate = range;
}
void setProgress(size_t value) override
{
std::lock_guard<std::mutex> guard(mMutex);
mProgressUpdate = value;
}
void increaseProgress(size_t increase) override
{ /* not implemented */
}
void update()
{
std::lock_guard<std::mutex> guard(mMutex);
if (mLabelUpdate)
mBaseListener.setLabel(*mLabelUpdate, mImportantLabel);
if (mRangeUpdate)
mBaseListener.setProgressRange(*mRangeUpdate);
if (mProgressUpdate)
mBaseListener.setProgress(*mProgressUpdate);
mLabelUpdate = std::nullopt;
mRangeUpdate = std::nullopt;
mProgressUpdate = std::nullopt;
}
private:
Listener& mBaseListener;
std::mutex mMutex;
std::optional<std::string> mLabelUpdate;
bool mImportantLabel = false;
std::optional<size_t> mRangeUpdate;
std::optional<size_t> mProgressUpdate;
};
}
#endif // COMPONENTS_LOADINGLISTENER_ASYNCLISTENER_H
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