69 lines
2.0 KiB
C++
69 lines
2.0 KiB
C++
#pragma once
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#include <fmt/format.h>
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#include <mpd/client.h>
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#include <condition_variable>
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#include <thread>
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#include "ALabel.hpp"
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namespace waybar::modules {
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class MPD : public ALabel {
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public:
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MPD(const std::string&, const Json::Value&);
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auto update() -> void;
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private:
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std::thread periodic_updater();
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std::string getTag(mpd_tag_type type, unsigned idx = 0);
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void setLabel();
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std::string getStateIcon();
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std::string getOptionIcon(std::string optionName, bool activated);
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std::thread event_listener();
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// Assumes `connection_lock_` is locked
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void tryConnect();
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// If checking errors on the main connection, make sure to lock it using
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// `connection_lock_` before calling checkErrors
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void checkErrors(mpd_connection* conn);
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// Assumes `connection_lock_` is locked
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void fetchState();
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void waitForEvent();
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bool handlePlayPause(GdkEventButton* const&);
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bool stopped();
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bool playing();
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const std::string module_name_;
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using unique_connection = std::unique_ptr<mpd_connection, decltype(&mpd_connection_free)>;
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using unique_status = std::unique_ptr<mpd_status, decltype(&mpd_status_free)>;
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using unique_song = std::unique_ptr<mpd_song, decltype(&mpd_song_free)>;
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// Not using unique_ptr since we don't manage the pointer
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// (It's either nullptr, or from the config)
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const char* server_;
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const unsigned port_;
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// We need a mutex here because we can trigger updates from multiple thread:
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// the event based updates, the periodic updates needed for the elapsed time,
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// and the click play/pause feature
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std::mutex connection_lock_;
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unique_connection connection_;
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// The alternate connection will be used to wait for events: since it will
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// be blocking (idle) we can't send commands via this connection
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//
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// No lock since only used in the event listener thread
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unique_connection alternate_connection_;
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// Protect them using the `connection_lock_`
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unique_status status_;
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mpd_state state_;
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unique_song song_;
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};
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} // namespace waybar::modules
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