Waybar/src/modules/battery.cpp

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#include "modules/battery.hpp"
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waybar::modules::Battery::Battery(Json::Value config)
: _config(config)
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{
try {
for (auto &node : fs::directory_iterator(_data_dir)) {
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if (fs::is_directory(node) && fs::exists(node / "capacity")
&& fs::exists(node / "status")) {
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_batteries.push_back(node);
}
}
} catch (fs::filesystem_error &e) {
std::cerr << e.what() << std::endl;
}
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if (!_batteries.size()) {
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std::cerr << "No batteries." << std::endl;
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return;
}
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_label.get_style_context()->add_class("battery");
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int interval = _config["interval"] ? _config["inveral"].asInt() : 1;
_thread = [this, interval] {
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update();
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_thread.sleep_for(chrono::seconds(interval));
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};
}
auto waybar::modules::Battery::update() -> void
{
try {
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int total = 0;
bool charging = false;
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for (auto &bat : _batteries) {
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int capacity;
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std::string status;
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std::ifstream(bat / "capacity") >> capacity;
total += capacity;
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std::ifstream(bat / "status") >> status;
if (status == "Charging") {
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charging = true;
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}
}
if (charging) {
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_label.get_style_context()->add_class("charging");
} else {
_label.get_style_context()->remove_class("charging");
}
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auto format = _config["format"] ? _config["format"].asString() : "{}%";
_label.set_text(fmt::format(format, total / _batteries.size()));
_label.set_tooltip_text(charging ? "Charging" : "Discharging");
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} catch (std::exception &e) {
std::cerr << e.what() << std::endl;
}
}
waybar::modules::Battery::operator Gtk::Widget &()
{
return _label;
}