[POTENTIAL BUG]

[slashformotion]

I set up a minimal working exemple to get a server up and running:

package main

import (
	"fmt"
	"log"

	"github.com/quarckster/go-mpris-server/pkg/server"
	"github.com/quarckster/go-mpris-server/pkg/types"
)

type Root struct{}

// Implement other methods of `pkg.types.OrgMprisMediaPlayer2Adapter`
func (r Root) Raise() error {
	log.Println("Raised")
	return nil
}

func (r Root) Quit() error {
	return nil
}
func (r Root) CanQuit() (bool, error) {
	return true, nil
}
func (r Root) CanRaise() (bool, error) {
	return true, nil
}
func (r Root) HasTrackList() (bool, error) {
	return true, nil
}
func (r Root) Identity() (string, error) {
	return "hello", nil
}
func (r Root) SupportedUriSchemes() ([]string, error) {
	return []string{}, nil
}
func (r Root) SupportedMimeTypes() ([]string, error) {
	return []string{}, nil
}

var _ types.OrgMprisMediaPlayer2Adapter = Root{}

type Player struct{}

var _ types.OrgMprisMediaPlayer2PlayerAdapter = Player{}

func (p Player) Next() error {
	fmt.Println("Next")
	return nil
}
func (p Player) Previous() error {
	fmt.Println("Previous")
	return nil
}
func (p Player) Pause() error {
	fmt.Println("Pause")
	return nil
}
func (p Player) PlayPause() error {
	fmt.Println("PlayPause")
	return nil
}
func (p Player) Stop() error {
	return nil
}
func (p Player) Play() error {
	return nil
}
func (p Player) Seek(offset types.Microseconds) error {
	return nil
}
func (p Player) SetPosition(trackId string, position types.Microseconds) error {
	return nil
}
func (p Player) OpenUri(uri string) error {
	return nil
}
func (p Player) PlaybackStatus() (types.PlaybackStatus, error) {
	return types.PlaybackStatusStopped, nil
}
func (p Player) Rate() (float64, error) {
	return 1.2, nil
}
func (p Player) SetRate(float64) error {
	return nil
}
func (p Player) Metadata() (types.Metadata, error) {
	return types.Metadata{
		TrackId:        "",
		Length:         0,
		ArtUrl:         "",
		Album:          "",
		AlbumArtist:    []string{},
		Artist:         []string{},
		AsText:         "",
		AudioBPM:       0,
		AutoRating:     0.0,
		Comment:        []string{},
		Composer:       []string{},
		ContentCreated: "",
		DiscNumber:     0,
		FirstUsed:      "",
		Genre:          []string{},
		LastUsed:       "",
		Lyricist:       []string{},
		Title:          "",
		TrackNumber:    0,
		Url:            "",
		UseCount:       0,
		UserRating:     0.0,
	}, nil
}
func (p Player) Volume() (float64, error) {
	return 0, nil
}
func (p Player) SetVolume(in float64) error {
	fmt.Printf("SetVolume %f\n", in)

	return nil
}
func (p Player) Position() (int64, error) {
	return 0, nil
}
func (p Player) MinimumRate() (float64, error) {
	return 0, nil
}
func (p Player) MaximumRate() (float64, error) {
	return 0, nil
}
func (p Player) CanGoNext() (bool, error) {
	return true, nil
}
func (p Player) CanGoPrevious() (bool, error) {
	return true, nil
}
func (p Player) CanPlay() (bool, error) {
	return true, nil
}
func (p Player) CanPause() (bool, error) {
	return true, nil
}
func (p Player) CanSeek() (bool, error) {
	return true, nil
}
func (p Player) CanControl() (bool, error) {
	return true, nil
}

func main() {
	r := Root{}
	p := Player{}
	s := server.NewServer("helloplayer", r, p)
	// _ = events.NewEventHandler(s)
	go s.Listen()
	// some blocking call should be here
	select {}
}

And i got

$ go run main.go
dbus: dropping invalid reply to org.freedesktop.DBus.Properties.GetAll on obj /org/mpris/MediaPlayer2: dbus: wire format error: invalid object path

I don't know if it is a problem on my part or not...

It seems that the functions on org.mpris.MediaPlayer2 works but not on org.mpris.MediaPlayer2.Player

[dweymouth]

Both the Root and Player functions work for me. The invalid object path error may be related to using an empty string as TrackID but I also think it might not be a problem as long as you return valid dbus paths for TrackID once you actually have a track playing.