88 lines
2.7 KiB
C++
88 lines
2.7 KiB
C++
#pragma once
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#include <libudev.h>
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#include <spdlog/spdlog.h>
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#include <chrono>
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#include <mutex>
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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 "giomm/dbusproxy.h"
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#include "util/backend_common.hpp"
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#include "util/sleeper_thread.hpp"
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#define GET_BEST_DEVICE(varname, backend, preferred_device) \
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decltype((backend).devices_) __devices; \
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{ \
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std::scoped_lock<std::mutex> lock((backend).udev_thread_mutex_); \
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__devices = (backend).devices_; \
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} \
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auto varname = (backend).best_device(__devices, preferred_device);
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namespace waybar::util {
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class BacklightDevice {
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public:
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BacklightDevice() = default;
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BacklightDevice(std::string name, int actual, int max, bool powered);
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std::string 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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bool get_powered() const;
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void set_powered(bool powered);
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friend inline bool operator==(const BacklightDevice &lhs, const BacklightDevice &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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bool powered_ = true;
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};
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class BacklightBackend {
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public:
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BacklightBackend(std::chrono::milliseconds interval, std::function<void()> on_updated_cb = NOOP);
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// const inline BacklightDevice *get_best_device(std::string_view preferred_device);
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const BacklightDevice *get_previous_best_device();
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void set_previous_best_device(const BacklightDevice *device);
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void set_brightness(const std::string &preferred_device, ChangeType change_type, double step);
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void set_scaled_brightness(const std::string &preferred_device, int brightness);
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int get_scaled_brightness(const std::string &preferred_device);
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bool is_login_proxy_initialized() const { return static_cast<bool>(login_proxy_); }
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static const BacklightDevice *best_device(const std::vector<BacklightDevice> &devices,
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std::string_view);
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std::vector<BacklightDevice> devices_;
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std::mutex udev_thread_mutex_;
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private:
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void set_brightness_internal(const std::string &device_name, int brightness, int max_brightness);
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std::function<void()> on_updated_cb_;
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std::chrono::milliseconds polling_interval_;
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std::optional<BacklightDevice> previous_best_;
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// thread must destruct before shared data
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util::SleeperThread udev_thread_;
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Glib::RefPtr<Gio::DBus::Proxy> login_proxy_;
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static constexpr int EPOLL_MAX_EVENTS = 16;
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};
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} // namespace waybar::util
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