498 lines
14 KiB
Rust
498 lines
14 KiB
Rust
use std::collections::HashMap;
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use std::rc::Rc;
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use std::sync::{mpsc, Arc};
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use std::time::Duration;
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use dbus::arg::{RefArg, Variant};
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use dbus::stdintf::org_freedesktop_dbus::PropertiesPropertiesChanged;
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use dbus::tree::{Access, Factory};
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use dbus::{Path, SignalArgs};
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use queue::{Queue, RepeatSetting};
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use spotify::{PlayerEvent, Spotify};
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use track::Track;
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type Metadata = HashMap<String, Variant<Box<dyn RefArg>>>;
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struct MprisState(String, Option<Track>);
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fn get_playbackstatus(spotify: Arc<Spotify>) -> String {
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match spotify.get_current_status() {
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PlayerEvent::Playing => "Playing",
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PlayerEvent::Paused => "Paused",
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_ => "Stopped",
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}
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.to_string()
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}
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fn get_metadata(track: Option<Track>) -> Metadata {
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let mut hm: Metadata = HashMap::new();
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let track = track.as_ref();
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hm.insert(
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"mpris:trackid".to_string(),
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Variant(Box::new(
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track
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.map(|t| {
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format!(
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"spotify:track:{}",
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t.id.clone().unwrap_or_else(|| "0".to_string())
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)
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})
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.unwrap_or_default(),
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)),
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);
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hm.insert(
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"mpris:length".to_string(),
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Variant(Box::new(i64::from(
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track.map(|t| t.duration * 1_000).unwrap_or(0),
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))),
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);
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hm.insert(
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"mpris:artUrl".to_string(),
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Variant(Box::new(
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track.map(|t| t.cover_url.clone()).unwrap_or_default(),
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)),
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);
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hm.insert(
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"xesam:album".to_string(),
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Variant(Box::new(track.map(|t| t.album.clone()).unwrap_or_default())),
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);
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hm.insert(
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"xesam:albumArtist".to_string(),
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Variant(Box::new(
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track.map(|t| t.album_artists.clone()).unwrap_or_default(),
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)),
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);
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hm.insert(
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"xesam:artist".to_string(),
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Variant(Box::new(
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track.map(|t| t.artists.clone()).unwrap_or_default(),
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)),
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);
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hm.insert(
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"xesam:discNumber".to_string(),
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Variant(Box::new(track.map(|t| t.disc_number).unwrap_or(0))),
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);
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hm.insert(
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"xesam:title".to_string(),
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Variant(Box::new(track.map(|t| t.title.clone()).unwrap_or_default())),
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);
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hm.insert(
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"xesam:trackNumber".to_string(),
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Variant(Box::new(track.map(|t| t.track_number).unwrap_or(0) as i32)),
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);
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hm.insert(
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"xesam:url".to_string(),
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Variant(Box::new(track.map(|t| t.url.clone()).unwrap_or_default())),
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);
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hm
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}
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fn run_dbus_server(spotify: Arc<Spotify>, queue: Arc<Queue>, rx: mpsc::Receiver<MprisState>) {
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let conn = Rc::new(
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dbus::Connection::get_private(dbus::BusType::Session).expect("Failed to connect to dbus"),
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);
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conn.register_name(
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"org.mpris.MediaPlayer2.ncspot",
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dbus::NameFlag::ReplaceExisting as u32,
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)
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.expect("Failed to register dbus player name");
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let f = Factory::new_fn::<()>();
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let property_canquit = f
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.property::<bool, _>("CanQuit", ())
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.access(Access::Read)
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.on_get(|iter, _| {
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iter.append(false); // TODO
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Ok(())
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});
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let property_canraise = f
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.property::<bool, _>("CanRaise", ())
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.access(Access::Read)
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.on_get(|iter, _| {
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iter.append(false);
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Ok(())
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});
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let property_cansetfullscreen = f
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.property::<bool, _>("CanSetFullscreen", ())
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.access(Access::Read)
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.on_get(|iter, _| {
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iter.append(false);
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Ok(())
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});
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let property_hastracklist = f
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.property::<bool, _>("HasTrackList", ())
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.access(Access::Read)
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.on_get(|iter, _| {
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iter.append(false); // TODO
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Ok(())
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});
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let property_identity = f
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.property::<String, _>("Identity", ())
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.access(Access::Read)
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.on_get(|iter, _| {
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iter.append("ncspot".to_string());
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Ok(())
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});
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let property_urischemes = f
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.property::<Vec<String>, _>("SupportedUriSchemes", ())
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.access(Access::Read)
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.on_get(|iter, _| {
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iter.append(vec!["spotify".to_string()]);
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Ok(())
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});
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let property_mimetypes = f
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.property::<Vec<String>, _>("SupportedMimeTypes", ())
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.access(Access::Read)
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.on_get(|iter, _| {
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iter.append(Vec::new() as Vec<String>);
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Ok(())
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});
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// https://specifications.freedesktop.org/mpris-spec/latest/Media_Player.html
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let interface = f
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.interface("org.mpris.MediaPlayer2", ())
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.add_p(property_canquit)
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.add_p(property_canraise)
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.add_p(property_cansetfullscreen)
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.add_p(property_hastracklist)
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.add_p(property_identity)
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.add_p(property_urischemes)
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.add_p(property_mimetypes);
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let property_playbackstatus = {
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let spotify = spotify.clone();
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f.property::<String, _>("PlaybackStatus", ())
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.access(Access::Read)
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.on_get(move |iter, _| {
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let status = get_playbackstatus(spotify.clone());
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iter.append(status);
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Ok(())
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})
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};
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let property_loopstatus = {
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let queue = queue.clone();
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f.property::<String, _>("LoopStatus", ())
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.access(Access::Read)
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.on_get(move |iter, _| {
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iter.append(
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match queue.get_repeat() {
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RepeatSetting::None => "None",
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RepeatSetting::RepeatTrack => "Track",
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RepeatSetting::RepeatPlaylist => "Playlist",
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}
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.to_string(),
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);
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Ok(())
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})
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};
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let property_metadata = {
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let queue = queue.clone();
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f.property::<HashMap<String, Variant<Box<dyn RefArg>>>, _>("Metadata", ())
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.access(Access::Read)
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.on_get(move |iter, _| {
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let hm = get_metadata(queue.clone().get_current());
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iter.append(hm);
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Ok(())
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})
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};
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let property_position = {
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let spotify = spotify.clone();
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let progress = spotify.get_current_progress();
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f.property::<i64, _>("Position", ())
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.access(Access::Read)
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.on_get(move |iter, _| {
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iter.append(progress.as_micros() as i64);
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Ok(())
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})
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};
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let property_volume = f
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.property::<f64, _>("Volume", ())
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.access(Access::Read)
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.on_get(|iter, _| {
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iter.append(1.0);
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Ok(())
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});
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let property_rate = f
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.property::<f64, _>("Rate", ())
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.access(Access::Read)
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.on_get(|iter, _| {
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iter.append(1.0);
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Ok(())
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});
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let property_minrate = f
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.property::<f64, _>("MinimumRate", ())
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.access(Access::Read)
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.on_get(|iter, _| {
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iter.append(1.0);
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Ok(())
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});
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let property_maxrate = f
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.property::<f64, _>("MaximumRate", ())
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.access(Access::Read)
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.on_get(|iter, _| {
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iter.append(1.0);
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Ok(())
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});
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let property_canplay = f
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.property::<bool, _>("CanPlay", ())
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.access(Access::Read)
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.on_get(|iter, _| {
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iter.append(true);
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Ok(())
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});
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let property_canpause = f
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.property::<bool, _>("CanPause", ())
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.access(Access::Read)
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.on_get(|iter, _| {
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iter.append(true);
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Ok(())
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});
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let property_canseek = f
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.property::<bool, _>("CanSeek", ())
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.access(Access::Read)
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.on_get(|iter, _| {
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iter.append(false); // TODO
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Ok(())
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});
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let property_cancontrol = f
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.property::<bool, _>("CanControl", ())
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.access(Access::Read)
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.on_get(|iter, _| {
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iter.append(true);
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Ok(())
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});
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let property_cangonext = f
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.property::<bool, _>("CanGoNext", ())
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.access(Access::Read)
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.on_get(|iter, _| {
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iter.append(true);
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Ok(())
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});
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let property_cangoprevious = f
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.property::<bool, _>("CanGoPrevious", ())
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.access(Access::Read)
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.on_get(|iter, _| {
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iter.append(true);
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Ok(())
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});
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let property_shuffle = {
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let queue = queue.clone();
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f.property::<bool, _>("Shuffle", ())
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.access(Access::Read)
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.on_get(move |iter, _| {
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iter.append(queue.get_shuffle());
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Ok(())
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})
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};
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let property_cangoforward = f
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.property::<bool, _>("CanGoForward", ())
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.access(Access::Read)
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.on_get(|iter, _| {
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iter.append(true);
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Ok(())
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});
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let property_canrewind = f
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.property::<bool, _>("CanRewind", ())
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.access(Access::Read)
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.on_get(|iter, _| {
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iter.append(true);
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Ok(())
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});
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let method_playpause = {
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let spotify = spotify.clone();
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f.method("PlayPause", (), move |m| {
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spotify.toggleplayback();
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Ok(vec![m.msg.method_return()])
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})
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};
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let method_play = {
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let spotify = spotify.clone();
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f.method("Play", (), move |m| {
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spotify.play();
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Ok(vec![m.msg.method_return()])
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})
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};
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let method_pause = {
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let spotify = spotify.clone();
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f.method("Pause", (), move |m| {
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spotify.pause();
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Ok(vec![m.msg.method_return()])
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})
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};
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let method_stop = {
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let spotify = spotify.clone();
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f.method("Stop", (), move |m| {
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spotify.stop();
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Ok(vec![m.msg.method_return()])
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})
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};
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let method_next = {
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let queue = queue.clone();
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f.method("Next", (), move |m| {
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queue.next(true);
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Ok(vec![m.msg.method_return()])
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})
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};
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let method_previous = {
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let queue = queue.clone();
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let spotify = spotify.clone();
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f.method("Previous", (), move |m| {
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if spotify.get_current_progress() < Duration::from_secs(5) {
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queue.previous();
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} else {
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spotify.seek(0);
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}
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Ok(vec![m.msg.method_return()])
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})
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};
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let method_forward = {
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let spotify = spotify.clone();
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f.method("Forward", (), move |m| {
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spotify.seek_relative(5000);
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Ok(vec![m.msg.method_return()])
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})
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};
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let method_rewind = {
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let spotify = spotify.clone();
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f.method("Rewind", (), move |m| {
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spotify.seek_relative(-5000);
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Ok(vec![m.msg.method_return()])
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})
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};
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// TODO: Seek, SetPosition, OpenUri (?)
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// https://specifications.freedesktop.org/mpris-spec/latest/Player_Interface.html
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let interface_player = f
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.interface("org.mpris.MediaPlayer2.Player", ())
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.add_p(property_playbackstatus)
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.add_p(property_loopstatus)
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.add_p(property_metadata)
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.add_p(property_position)
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.add_p(property_volume)
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.add_p(property_rate)
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.add_p(property_minrate)
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.add_p(property_maxrate)
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.add_p(property_canplay)
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.add_p(property_canpause)
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.add_p(property_canseek)
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.add_p(property_cancontrol)
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.add_p(property_cangonext)
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.add_p(property_cangoprevious)
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.add_p(property_shuffle)
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.add_p(property_cangoforward)
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.add_p(property_canrewind)
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.add_m(method_playpause)
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.add_m(method_play)
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.add_m(method_pause)
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.add_m(method_stop)
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.add_m(method_next)
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.add_m(method_previous)
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.add_m(method_forward)
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.add_m(method_rewind);
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let tree = f.tree(()).add(
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f.object_path("/org/mpris/MediaPlayer2", ())
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.introspectable()
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.add(interface)
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.add(interface_player),
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);
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tree.set_registered(&conn, true)
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.expect("failed to register tree");
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conn.add_handler(tree);
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loop {
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if let Some(m) = conn.incoming(200).next() {
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warn!("Unhandled dbus message: {:?}", m);
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}
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if let Ok(state) = rx.try_recv() {
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let mut changed: PropertiesPropertiesChanged = Default::default();
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debug!(
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"mpris PropertiesChanged: status {}, track: {:?}",
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state.0, state.1
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);
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changed.interface_name = "org.mpris.MediaPlayer2.Player".to_string();
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changed.changed_properties.insert(
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"Metadata".to_string(),
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Variant(Box::new(get_metadata(state.1))),
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);
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changed
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.changed_properties
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.insert("PlaybackStatus".to_string(), Variant(Box::new(state.0)));
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conn.send(
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changed.to_emit_message(&Path::new("/org/mpris/MediaPlayer2".to_string()).unwrap()),
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)
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.unwrap();
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}
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}
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}
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#[derive(Clone)]
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pub struct MprisManager {
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tx: mpsc::Sender<MprisState>,
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queue: Arc<Queue>,
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spotify: Arc<Spotify>,
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}
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impl MprisManager {
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pub fn new(spotify: Arc<Spotify>, queue: Arc<Queue>) -> Self {
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let (tx, rx) = mpsc::channel::<MprisState>();
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{
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let spotify = spotify.clone();
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let queue = queue.clone();
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std::thread::spawn(move || {
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run_dbus_server(spotify.clone(), queue.clone(), rx);
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});
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}
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MprisManager { tx, queue, spotify }
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}
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pub fn update(&self) {
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let status = get_playbackstatus(self.spotify.clone());
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let track = self.queue.get_current();
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self.tx.send(MprisState(status, track)).unwrap();
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}
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}
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