62 lines
1.6 KiB
C++
62 lines
1.6 KiB
C++
#pragma once
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#include <optional>
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#include <string>
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#include <string_view>
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#include <vector>
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#include "ALabel.hpp"
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#include "util/json.hpp"
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#include "util/sleeper_thread.hpp"
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struct udev;
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struct udev_device;
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namespace waybar::modules {
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class Backlight : public ALabel {
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class BacklightDev {
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public:
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BacklightDev() = default;
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BacklightDev(std::string name, int actual, int max);
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std::string_view name() const;
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int get_actual() const;
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void set_actual(int actual);
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int get_max() const;
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void set_max(int max);
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friend inline bool operator==(const BacklightDev &lhs, const BacklightDev &rhs) {
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return lhs.name_ == rhs.name_ && lhs.actual_ == rhs.actual_ && lhs.max_ == rhs.max_;
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}
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private:
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std::string name_;
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int actual_ = 1;
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int max_ = 1;
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};
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public:
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Backlight(const std::string &, const Json::Value &);
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~Backlight();
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auto update() -> void;
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private:
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template <class ForwardIt>
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static const BacklightDev *best_device(ForwardIt first, ForwardIt last, std::string_view);
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template <class ForwardIt, class Inserter>
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static void upsert_device(ForwardIt first, ForwardIt last, Inserter inserter, udev_device *dev);
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template <class ForwardIt, class Inserter>
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static void enumerate_devices(ForwardIt first, ForwardIt last, Inserter inserter, udev *udev);
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const std::string preferred_device_;
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static constexpr int EPOLL_MAX_EVENTS = 16;
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std::optional<BacklightDev> previous_best_;
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std::string previous_format_;
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std::mutex udev_thread_mutex_;
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std::vector<BacklightDev> devices_;
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// thread must destruct before shared data
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util::SleeperThread udev_thread_;
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};
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} // namespace waybar::modules
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