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unmuteIosAudio Promise return basic thing #14

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unmuteIosAudio Promise return basic thing #14

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30 changes: 18 additions & 12 deletions index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -33,12 +33,6 @@ function unmuteIosAudio () {
const sampleRate = (new AudioContext()).sampleRate
const silentAudioFile = createSilentAudioFile(sampleRate)

USER_ACTIVATION_EVENTS.forEach(eventName => {
window.addEventListener(
eventName, handleUserActivation, { capture: true, passive: true }
)
})

// Return a seven samples long 8 bit mono WAVE file
function createSilentAudioFile (sampleRate) {
const arrayBuffer = new ArrayBuffer(10)
Expand All @@ -55,15 +49,17 @@ function unmuteIosAudio () {
return `data:audio/wav;base64,UklGRisAAABXQVZFZm10IBAAAAABAAEA${missingCharacters}AgAZGF0YQcAAACAgICAgICAAAA=`
}

function handleUserActivation (e) {
if (htmlAudioState === 'blocked') {
htmlAudioState = 'pending'
createHtmlAudio()
}
function handleUserActivation (resolve, reject, e) {
if (webAudioState === 'blocked') {
webAudioState = 'pending'
createWebAudio()
}
if (htmlAudioState === 'blocked') {
htmlAudioState = 'pending'
Promise.all([createHtmlAudio(), context.resume()])
.then(() => resolve())
.catch(err = reject(err))
}
}

function createHtmlAudio () {
Expand All @@ -75,7 +71,7 @@ function unmuteIosAudio () {
audio.src = silentAudioFile
audio.load()

audio.play().then(
return audio.play().then(
() => {
htmlAudioState = 'allowed'
maybeCleanup()
Expand All @@ -102,6 +98,7 @@ function unmuteIosAudio () {
if (context.state === 'running') {
webAudioState = 'allowed'
maybeCleanup()
return true
} else {
webAudioState = 'blocked'

Expand All @@ -110,6 +107,7 @@ function unmuteIosAudio () {

context.close()
context = null
return false
}
}

Expand All @@ -122,4 +120,12 @@ function unmuteIosAudio () {
)
})
}

return new Promise((resole, reject) => {
USER_ACTIVATION_EVENTS.forEach(eventName => {
window.addEventListener(
eventName, handleUserActivation.bind(null, resolve, reject), { capture: true, passive: true }
)
})
})
}