Abstract main

audio/audio.go

@@ -0,0 +1,64 @@
+package audio
+
+import (
+	"github.com/ebitengine/oto/v3"
+	"log"
+	"os"
+	"time"
+)
+
+var (
+	hasSetup = false
+	audio    Audio
+)
+
+type Audio struct {
+	AudioContext *oto.Context
+}
+
+func setup() {
+	var ctxOptions = oto.NewContextOptions{
+		SampleRate:   44100,
+		ChannelCount: 2,
+		Format:       oto.FormatSignedInt16LE,
+		BufferSize:   0,
+	}
+
+	var ready = make(chan struct{})
+	var err error
+	audio.AudioContext, ready, err = oto.NewContext(&ctxOptions)
+	if err != nil {
+		log.Println(err)
+		return
+	}
+	<-ready // Wait for the context to be ready
+}
+
+func Play() {
+	if !hasSetup {
+		setup()
+		hasSetup = true
+	}
+
+	var b, err = os.Open("sample.wav")
+	if err != nil {
+		log.Println(err)
+		return
+	}
+	var player = audio.AudioContext.NewPlayer(b)
+	player.Play()
+	// Wait for the player to finish
+	for player.IsPlaying() {
+		time.Sleep(time.Millisecond)
+	}
+	err = player.Close()
+	if err != nil {
+		log.Println(err)
+		return
+	}
+	err = b.Close()
+	if err != nil {
+		log.Println(err)
+		return
+	}
+}

main.go

@@ -1,32 +1,10 @@
 package main
 
 import (
-	"bytes"
-	"fyne.io/fyne/v2/app"
-	"fyne.io/fyne/v2/widget"
-	"github.com/ebitengine/oto/v3"
-	"os"
+	"gofin/view"
 )
 
 func main() {
-	var a = app.New()
-	var btn = widget.NewButton("Play", func() {
-		var b, _ = os.ReadFile("sample.wav")
-		// create reader from bytes
-		var reader = bytes.NewReader(b)
-		var ctxOptions = oto.NewContextOptions{
-			SampleRate:   44100,
-			ChannelCount: 2,
-			Format:       oto.FormatSignedInt16LE,
-			BufferSize:   0,
-		}
-		var ctx, ready, _ = oto.NewContext(&ctxOptions)
-		<-ready // Wait for the context to be ready
-		var player = ctx.NewPlayer(reader)
-		player.Play()
-	},
-	)
-	var w = a.NewWindow("Hello")
-	w.SetContent(btn)
-	w.ShowAndRun()
+	view.CreateView()
+	view.PopulateView()
 }

view/view.go

@@ -0,0 +1,28 @@
+package view
+
+import (
+	"fyne.io/fyne/v2"
+	"fyne.io/fyne/v2/widget"
+	"gofin/audio"
+)
+import "fyne.io/fyne/v2/app"
+
+var (
+	view View
+)
+
+type View struct {
+	app        fyne.App
+	mainWindow fyne.Window
+}
+
+func CreateView() {
+	view.app = app.New()
+	view.mainWindow = view.app.NewWindow("Hello")
+}
+
+func PopulateView() {
+	btn := widget.NewButton("Play", audio.Play)
+	view.mainWindow.SetContent(btn)
+	view.mainWindow.ShowAndRun()
+}