118 lines
4.3 KiB
C++
118 lines
4.3 KiB
C++
#include "modules/keyboard_state.hpp"
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#include <filesystem>
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extern "C" {
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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}
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waybar::modules::KeyboardState::KeyboardState(const std::string& id, const Bar& bar, const Json::Value& config)
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: AModule(config, "keyboard_state", id, false, !config["disable-scroll"].asBool()),
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bar_(bar),
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box_(bar.vertical ? Gtk::ORIENTATION_VERTICAL : Gtk::ORIENTATION_HORIZONTAL, 0),
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numlock_label_(""),
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capslock_label_(""),
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numlock_format_(config_["format"].isString() ? config_["format"].asString()
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: config_["format"]["numlock"].isString() ? config_["format"]["numlock"].asString()
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: "{name} {icon}"),
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capslock_format_(config_["format"].isString() ? config_["format"].asString()
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: config_["format"]["capslock"].isString() ? config_["format"]["capslock"].asString()
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: "{name} {icon}"),
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scrolllock_format_(config_["format"].isString() ? config_["format"].asString()
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: config_["format"]["scrolllock"].isString() ? config_["format"]["scrolllock"].asString()
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: "{name} {icon}"),
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interval_(std::chrono::seconds(config_["interval"].isUInt() ? config_["interval"].asUInt() : 1)),
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icon_locked_(config_["format-icons"]["locked"].isString()
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? config_["format-icons"]["locked"].asString()
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: "locked"),
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icon_unlocked_(config_["format-icons"]["unlocked"].isString()
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? config_["format-icons"]["unlocked"].asString()
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: "unlocked")
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{
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box_.set_name("keyboard_state");
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if (config_["numlock"].asBool()) {
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box_.pack_end(numlock_label_, false, false, 0);
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}
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if (config_["capslock"].asBool()) {
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box_.pack_end(capslock_label_, false, false, 0);
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}
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if (config_["scrolllock"].asBool()) {
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box_.pack_end(scrolllock_label_, false, false, 0);
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}
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if (!id.empty()) {
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box_.get_style_context()->add_class(id);
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}
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event_box_.add(box_);
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if (config_["device-path"].isString()) {
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dev_path_ = config_["device-path"].asString();
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} else {
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dev_path_ = "";
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}
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fd_ = open(dev_path_.c_str(), O_NONBLOCK | O_CLOEXEC | O_RDONLY);
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if (fd_ < 0) {
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throw std::runtime_error("Can't open " + dev_path_);
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}
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int err = libevdev_new_from_fd(fd_, &dev_);
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if (err < 0) {
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throw std::runtime_error("Can't create libevdev device");
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}
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if (!libevdev_has_event_type(dev_, EV_LED)) {
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throw std::runtime_error("Device doesn't support LED events");
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}
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if (!libevdev_has_event_code(dev_, EV_LED, LED_NUML)
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|| !libevdev_has_event_code(dev_, EV_LED, LED_CAPSL)
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|| !libevdev_has_event_code(dev_, EV_LED, LED_SCROLLL)) {
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throw std::runtime_error("Device doesn't support num lock, caps lock, or scroll lock events");
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}
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thread_ = [this] {
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dp.emit();
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thread_.sleep_for(interval_);
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};
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}
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waybar::modules::KeyboardState::~KeyboardState() {
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libevdev_free(dev_);
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int err = close(fd_);
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if (err < 0) {
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// Not much we can do, so ignore it.
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}
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}
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auto waybar::modules::KeyboardState::update() -> void {
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int err = LIBEVDEV_READ_STATUS_SUCCESS;
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while (err == LIBEVDEV_READ_STATUS_SUCCESS) {
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input_event ev;
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err = libevdev_next_event(dev_, LIBEVDEV_READ_FLAG_NORMAL, &ev);
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while (err == LIBEVDEV_READ_STATUS_SYNC) {
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err = libevdev_next_event(dev_, LIBEVDEV_READ_FLAG_SYNC, &ev);
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}
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}
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if (err != -EAGAIN) {
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throw std::runtime_error("Failed to sync evdev device");
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}
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int numl = libevdev_get_event_value(dev_, EV_LED, LED_NUML);
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int capsl = libevdev_get_event_value(dev_, EV_LED, LED_CAPSL);
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int scrolll = libevdev_get_event_value(dev_, EV_LED, LED_SCROLLL);
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std::string text;
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text = fmt::format(numlock_format_,
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fmt::arg("icon", numl ? icon_locked_ : icon_unlocked_),
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fmt::arg("name", "Num"));
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numlock_label_.set_markup(text);
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text = fmt::format(capslock_format_,
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fmt::arg("icon", capsl ? icon_locked_ : icon_unlocked_),
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fmt::arg("name", "Caps"));
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capslock_label_.set_markup(text);
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text = fmt::format(scrolllock_format_,
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fmt::arg("icon", scrolll ? icon_locked_ : icon_unlocked_),
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fmt::arg("name", "Scroll"));
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scrolllock_label_.set_markup(text);
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AModule::update();
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}
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