mirror of https://github.com/polybar/polybar.git
43 lines
938 B
C++
43 lines
938 B
C++
#pragma once
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// TODO: move to functional.hpp
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#include "common.hpp"
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#include "components/logger.hpp"
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POLYBAR_NS
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namespace scope_util {
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template <typename... Args>
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class on_exit {
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public:
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on_exit(function<void(Args...)>&& fn, Args... args) : m_callback(bind(fn, args...)) {}
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virtual ~on_exit() {
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m_callback();
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}
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protected:
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function<void()> m_callback;
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};
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/**
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* Creates a wrapper that will trigger given callback when
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* leaving the object's scope (i.e, when it gets destroyed)
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*
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* Example usage:
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* \code cpp
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* {
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* auto handler = scope_util::make_exit_handler([]{ ... })
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* ...
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* }
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* \endcode
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*/
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template <typename Fn = function<void()>, typename... Args>
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decltype(auto) make_exit_handler(Fn&& fn, Args&&... args) {
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return std::make_unique<on_exit<Args...>>(forward<Fn>(fn), forward<Args>(args)...);
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}
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} // namespace scope_util
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POLYBAR_NS_END
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