92 lines
1.9 KiB
Go
92 lines
1.9 KiB
Go
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package player
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import (
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"bufio"
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"io"
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"os/exec"
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"strings"
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)
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// Play uses playerctl to play media
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func Play() error {
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return exec.Command("playerctl", "play").Run()
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}
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// Pause uses playerctl to pause media
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func Pause() error {
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return exec.Command("playerctl", "pause").Run()
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}
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// Next uses playerctl to skip to next media
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func Next() error {
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return exec.Command("playerctl", "next").Run()
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}
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// Prev uses playerctl to skip to previous media
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func Prev() error {
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return exec.Command("playerctl", "previous").Run()
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}
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// Metadata uses playerctl to detect music metadata changes
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func Metadata(key string, onChange func(string)) error {
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// Execute playerctl command with key and follow flag
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cmd := exec.Command("playerctl", "metadata", key, "-F")
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// Get stdout pipe
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stdout, err := cmd.StdoutPipe()
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if err != nil {
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return err
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}
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go func() {
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for {
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// Read line from command stdout
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line, _, err := bufio.NewReader(stdout).ReadLine()
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if err == io.EOF {
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continue
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}
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// Convert line to string
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data := string(line)
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// If key unknown, return suitable default
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if data == "No player could handle this command" || data == "" {
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data = "Unknown " + strings.Title(key)
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}
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// Run the onChange callback
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onChange(data)
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}
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}()
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// Start command asynchronously
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err = cmd.Start()
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if err != nil {
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return err
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}
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return nil
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}
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func Status(onChange func(bool)) error {
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// Execute playerctl status with follow flag
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cmd := exec.Command("playerctl", "status", "-F")
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// Get stdout pipe
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stdout, err := cmd.StdoutPipe()
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if err != nil {
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return err
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}
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go func() {
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for {
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// Read line from command stdout
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line, _, err := bufio.NewReader(stdout).ReadLine()
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if err == io.EOF {
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continue
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}
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// Convert line to string
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data := string(line)
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// Run the onChange callback
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onChange(data == "Playing")
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}
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}()
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// Start command asynchronously
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err = cmd.Start()
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if err != nil {
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return err
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}
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return nil
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}
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