import {
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getRealPath
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} from '../util'
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import {
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publish
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} from '../../bridge'
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const AUDIO_DEFAULT_SESSION_CATEGORY = 'playback'
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const audios = {}
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const evts = ['play', 'canplay', 'ended', 'stop', 'waiting', 'seeking', 'seeked', 'pause']
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const publishAudioStateChange = (state, res = {}) => publish('onAudioStateChange', Object.assign({
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state
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}, res))
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const initStateChage = audioId => {
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const audio = audios[audioId]
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if (!audio) {
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return
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}
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if (!audio.initStateChage) {
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audio.initStateChage = true
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audio.addEventListener('error', error => {
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publishAudioStateChange('error', {
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audioId,
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errMsg: 'MediaError',
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errCode: error.code
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})
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})
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evts.forEach(event => {
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audio.addEventListener(event, () => {
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// 添加 isStopped 属性是为了解决 安卓设备停止播放后获取播放进度不正确的问题
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if (event === 'play') {
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audio.isStopped = false
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} else if (event === 'stop') {
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audio.isStopped = true
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}
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publishAudioStateChange(event, {
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audioId
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})
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})
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})
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}
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}
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export function createAudioInstance () {
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const audioId = `${Date.now()}${Math.random()}`
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const audio = audios[audioId] = plus.audio.createPlayer('')
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audio.src = ''
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audio.volume = 1
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audio.startTime = 0
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audio.setSessionCategory(AUDIO_DEFAULT_SESSION_CATEGORY)
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return {
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errMsg: 'createAudioInstance:ok',
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audioId
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}
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}
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export function destroyAudioInstance ({
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audioId
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}) {
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if (audios[audioId]) {
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audios[audioId].close()
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delete audios[audioId]
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}
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return {
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errMsg: 'destroyAudioInstance:ok',
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audioId
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}
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}
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export function setAudioState ({
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audioId,
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src,
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startTime,
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autoplay = false,
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loop = false,
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obeyMuteSwitch,
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volume,
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sessionCategory = AUDIO_DEFAULT_SESSION_CATEGORY,
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playbackRate
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}) {
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const audio = audios[audioId]
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if (audio) {
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const style = {
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loop,
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autoplay
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}
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if (src) {
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// iOS 设置 src 会重新播放
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const realSrc = getRealPath(src)
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if (audio.src !== realSrc) audio.src = style.src = realSrc
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}
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if (startTime) {
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audio.startTime = style.startTime = startTime
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}
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if (typeof volume === 'number') {
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audio.volume = style.volume = volume
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}
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audio.setStyles(style)
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if (sessionCategory) {
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audio.setSessionCategory(sessionCategory)
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}
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if (playbackRate && audio.playbackRate) {
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audio.playbackRate(playbackRate)
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}
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initStateChage(audioId)
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}
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return {
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errMsg: 'setAudioState:ok'
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}
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}
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export function getAudioState ({
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audioId
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}) {
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const audio = audios[audioId]
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if (!audio) {
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return {
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errMsg: 'getAudioState:fail'
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}
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}
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const {
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src,
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startTime,
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volume
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} = audio
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return {
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errMsg: 'getAudioState:ok',
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duration: 1e3 * (audio.getDuration() || 0),
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currentTime: audio.isStopped ? 0 : 1e3 * audio.getPosition(),
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paused: audio.isPaused(),
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src,
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volume,
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startTime: 1e3 * startTime,
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buffered: 1e3 * audio.getBuffered()
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}
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}
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export function operateAudio ({
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operationType,
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audioId,
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currentTime
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}) {
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const audio = audios[audioId]
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const operationTypes = ['play', 'pause', 'stop']
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if (operationTypes.indexOf(operationType) >= 0) {
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audio[operationType === operationTypes[0] && audio.isPaused() ? 'resume' : operationType]()
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} else if (operationType === 'seek') {
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audio.seekTo(currentTime / 1e3)
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}
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return {
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errMsg: 'operateAudio:ok'
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}
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}
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