Waybar/src/modules/mpd/mpd.cpp

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#include "modules/mpd/mpd.hpp"
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#include <fmt/chrono.h>
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#include <spdlog/spdlog.h>
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#include "modules/mpd/state.hpp"
#if defined(MPD_NOINLINE)
namespace waybar::modules {
#include "modules/mpd/state.inl.hpp"
} // namespace waybar::modules
#endif
waybar::modules::MPD::MPD(const std::string& id, const Json::Value& config)
: ALabel(config, "mpd", id, "{album} - {artist} - {title}", 5),
module_name_(id.empty() ? "mpd" : "mpd#" + id),
server_(nullptr),
port_(config_["port"].isUInt() ? config["port"].asUInt() : 0),
password_(config_["password"].empty() ? "" : config_["password"].asString()),
timeout_(config_["timeout"].isUInt() ? config_["timeout"].asUInt() * 1'000 : 30'000),
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connection_(nullptr, &mpd_connection_free),
status_(nullptr, &mpd_status_free),
song_(nullptr, &mpd_song_free) {
if (!config_["port"].isNull() && !config_["port"].isUInt()) {
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spdlog::warn("{}: `port` configuration should be an unsigned int", module_name_);
}
if (!config_["timeout"].isNull() && !config_["timeout"].isUInt()) {
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spdlog::warn("{}: `timeout` configuration should be an unsigned int", module_name_);
}
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if (!config["server"].isNull()) {
if (!config_["server"].isString()) {
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spdlog::warn("{}:`server` configuration should be a string", module_name_);
}
server_ = config["server"].asCString();
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}
event_box_.add_events(Gdk::BUTTON_PRESS_MASK);
event_box_.signal_button_press_event().connect(sigc::mem_fun(*this, &MPD::handlePlayPause));
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}
auto waybar::modules::MPD::update() -> void {
context_.update();
// Call parent update
ALabel::update();
}
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void waybar::modules::MPD::queryMPD() {
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if (connection_ != nullptr) {
spdlog::debug("{}: fetching state information", module_name_);
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try {
fetchState();
spdlog::debug("{}: fetch complete", module_name_);
} catch (std::exception const& e) {
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spdlog::error("{}: {}", module_name_, e.what());
state_ = MPD_STATE_UNKNOWN;
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}
dp.emit();
}
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}
std::string waybar::modules::MPD::getTag(mpd_tag_type type, unsigned idx) const {
std::string result =
config_["unknown-tag"].isString() ? config_["unknown-tag"].asString() : "N/A";
const char* tag = mpd_song_get_tag(song_.get(), type, idx);
// mpd_song_get_tag can return NULL, so make sure it's valid before setting
if (tag) result = tag;
return result;
}
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void waybar::modules::MPD::setLabel() {
if (connection_ == nullptr) {
label_.get_style_context()->add_class("disconnected");
label_.get_style_context()->remove_class("stopped");
label_.get_style_context()->remove_class("playing");
label_.get_style_context()->remove_class("paused");
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auto format = config_["format-disconnected"].isString()
? config_["format-disconnected"].asString()
: "disconnected";
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label_.set_markup(format);
if (tooltipEnabled()) {
std::string tooltip_format;
tooltip_format = config_["tooltip-format-disconnected"].isString()
? config_["tooltip-format-disconnected"].asString()
: "MPD (disconnected)";
// Nothing to format
label_.set_tooltip_text(tooltip_format);
}
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return;
} else {
label_.get_style_context()->remove_class("disconnected");
}
auto format = format_;
std::string artist, album_artist, album, title, date;
int song_pos, queue_length;
std::chrono::seconds elapsedTime, totalTime;
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std::string stateIcon = "";
if (stopped()) {
format =
config_["format-stopped"].isString() ? config_["format-stopped"].asString() : "stopped";
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label_.get_style_context()->add_class("stopped");
label_.get_style_context()->remove_class("playing");
label_.get_style_context()->remove_class("paused");
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} else {
label_.get_style_context()->remove_class("stopped");
if (playing()) {
label_.get_style_context()->add_class("playing");
label_.get_style_context()->remove_class("paused");
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} else if (paused()) {
format = config_["format-paused"].isString() ? config_["format-paused"].asString()
: config_["format"].asString();
label_.get_style_context()->add_class("paused");
label_.get_style_context()->remove_class("playing");
}
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stateIcon = getStateIcon();
artist = getTag(MPD_TAG_ARTIST);
album_artist = getTag(MPD_TAG_ALBUM_ARTIST);
album = getTag(MPD_TAG_ALBUM);
title = getTag(MPD_TAG_TITLE);
date = getTag(MPD_TAG_DATE);
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song_pos = mpd_status_get_song_pos(status_.get());
queue_length = mpd_status_get_queue_length(status_.get());
elapsedTime = std::chrono::seconds(mpd_status_get_elapsed_time(status_.get()));
totalTime = std::chrono::seconds(mpd_status_get_total_time(status_.get()));
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}
bool consumeActivated = mpd_status_get_consume(status_.get());
std::string consumeIcon = getOptionIcon("consume", consumeActivated);
bool randomActivated = mpd_status_get_random(status_.get());
std::string randomIcon = getOptionIcon("random", randomActivated);
bool repeatActivated = mpd_status_get_repeat(status_.get());
std::string repeatIcon = getOptionIcon("repeat", repeatActivated);
bool singleActivated = mpd_status_get_single(status_.get());
std::string singleIcon = getOptionIcon("single", singleActivated);
try {
label_.set_markup(
fmt::format(format,
fmt::arg("artist", Glib::Markup::escape_text(artist).raw()),
fmt::arg("albumArtist", Glib::Markup::escape_text(album_artist).raw()),
fmt::arg("album", Glib::Markup::escape_text(album).raw()),
fmt::arg("title", Glib::Markup::escape_text(title).raw()),
fmt::arg("date", Glib::Markup::escape_text(date).raw()),
fmt::arg("elapsedTime", elapsedTime),
fmt::arg("totalTime", totalTime),
fmt::arg("songPosition", song_pos),
fmt::arg("queueLength", queue_length),
fmt::arg("stateIcon", stateIcon),
fmt::arg("consumeIcon", consumeIcon),
fmt::arg("randomIcon", randomIcon),
fmt::arg("repeatIcon", repeatIcon),
fmt::arg("singleIcon", singleIcon)));
} catch (fmt::format_error const& e) {
spdlog::warn("mpd: format error: {}", e.what());
}
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if (tooltipEnabled()) {
std::string tooltip_format;
tooltip_format = config_["tooltip-format"].isString() ? config_["tooltip-format"].asString()
: "MPD (connected)";
try {
auto tooltip_text = fmt::format(tooltip_format,
fmt::arg("artist", artist),
fmt::arg("albumArtist", album_artist),
fmt::arg("album", album),
fmt::arg("title", title),
fmt::arg("date", date),
fmt::arg("elapsedTime", elapsedTime),
fmt::arg("totalTime", totalTime),
fmt::arg("songPosition", song_pos),
fmt::arg("queueLength", queue_length),
fmt::arg("stateIcon", stateIcon),
fmt::arg("consumeIcon", consumeIcon),
fmt::arg("randomIcon", randomIcon),
fmt::arg("repeatIcon", repeatIcon),
fmt::arg("singleIcon", singleIcon));
label_.set_tooltip_text(tooltip_text);
} catch (fmt::format_error const& e) {
spdlog::warn("mpd: format error (tooltip): {}", e.what());
}
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}
}
std::string waybar::modules::MPD::getStateIcon() const {
if (!config_["state-icons"].isObject()) {
return "";
}
if (connection_ == nullptr) {
spdlog::warn("{}: Trying to fetch state icon while disconnected", module_name_);
return "";
}
if (stopped()) {
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spdlog::warn("{}: Trying to fetch state icon while stopped", module_name_);
return "";
}
if (playing()) {
return config_["state-icons"]["playing"].asString();
} else {
return config_["state-icons"]["paused"].asString();
}
}
std::string waybar::modules::MPD::getOptionIcon(std::string optionName, bool activated) const {
if (!config_[optionName + "-icons"].isObject()) {
return "";
}
if (connection_ == nullptr) {
spdlog::warn("{}: Trying to fetch option icon while disconnected", module_name_);
return "";
}
if (activated) {
return config_[optionName + "-icons"]["on"].asString();
} else {
return config_[optionName + "-icons"]["off"].asString();
}
}
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void waybar::modules::MPD::tryConnect() {
if (connection_ != nullptr) {
return;
}
connection_ =
detail::unique_connection(mpd_connection_new(server_, port_, timeout_), &mpd_connection_free);
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if (connection_ == nullptr) {
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spdlog::error("{}: Failed to connect to MPD", module_name_);
connection_.reset();
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return;
}
try {
checkErrors(connection_.get());
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spdlog::debug("{}: Connected to MPD", module_name_);
if (!password_.empty()) {
bool res = mpd_run_password(connection_.get(), password_.c_str());
if (!res) {
spdlog::error("{}: Wrong MPD password", module_name_);
connection_.reset();
return;
}
checkErrors(connection_.get());
}
} catch (std::runtime_error& e) {
spdlog::error("{}: Failed to connect to MPD: {}", module_name_, e.what());
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connection_.reset();
}
}
void waybar::modules::MPD::checkErrors(mpd_connection* conn) {
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switch (mpd_connection_get_error(conn)) {
case MPD_ERROR_SUCCESS:
mpd_connection_clear_error(conn);
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return;
case MPD_ERROR_TIMEOUT:
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case MPD_ERROR_CLOSED:
mpd_connection_clear_error(conn);
connection_.reset();
state_ = MPD_STATE_UNKNOWN;
throw std::runtime_error("Connection to MPD closed");
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default:
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if (conn) {
auto error_message = mpd_connection_get_error_message(conn);
std::string error(error_message);
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mpd_connection_clear_error(conn);
throw std::runtime_error(error);
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}
throw std::runtime_error("Invalid connection");
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}
}
void waybar::modules::MPD::fetchState() {
if (connection_ == nullptr) {
spdlog::error("{}: Not connected to MPD", module_name_);
return;
}
auto conn = connection_.get();
status_ = detail::unique_status(mpd_run_status(conn), &mpd_status_free);
checkErrors(conn);
state_ = mpd_status_get_state(status_.get());
checkErrors(conn);
song_ = detail::unique_song(mpd_run_current_song(conn), &mpd_song_free);
checkErrors(conn);
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}
bool waybar::modules::MPD::handlePlayPause(GdkEventButton* const& e) {
if (e->type == GDK_2BUTTON_PRESS || e->type == GDK_3BUTTON_PRESS || connection_ == nullptr) {
return false;
}
if (e->button == 1) {
if (state_ == MPD_STATE_PLAY)
context_.pause();
else
context_.play();
} else if (e->button == 3) {
context_.stop();
}
return true;
}