const fillIn = val => `${val < 10 ? '0' : ''}${val}`,
|
formatTime = _time => {
|
let time = Math.round(_time);
|
let second = Math.round(time % 60),
|
minute = Math.floor(time / 60 % 60),
|
hour = Math.floor(time / 60 / 60);
|
return `${fillIn(hour)}:${fillIn(minute)}:${fillIn(second)}`;
|
};
|
|
class Audio{
|
constructor(obj){
|
const _ts = this,
|
option = _ts.option = obj.attrs;
|
|
_ts.loop = option.loop === 'true',
|
_ts.autoplay = option.autoplay === 'true';
|
_ts.create();
|
_ts.index = 0;
|
|
|
}
|
create(){
|
const _ts = this,
|
option = _ts.option;
|
let audio = _ts.audio = wx.createInnerAudioContext();
|
audio.src = option.src;
|
|
// 说明可以播放了
|
audio.onCanplay(function(){
|
if(_ts.autoplay && !_ts.index){
|
_ts.play();
|
};
|
if(!_ts.autoplay && !_ts.index){
|
_ts.eventCanplay();
|
};
|
});
|
|
// 更新时间
|
audio.onTimeUpdate(function(){
|
//_ts.status = 'update';
|
_ts.duration = audio.duration;
|
_ts.currentTime = audio.currentTime;
|
|
// 定义播放结束
|
if(_ts.duration - _ts.currentTime < 0.5){
|
_ts.index++;
|
if(_ts.loop){
|
audio.stop();
|
}else{
|
_ts.stop();
|
};
|
audio.seek(0);
|
};
|
_ts.eventTimeUpdate(formatTime(_ts.duration),formatTime(_ts.currentTime));
|
});
|
|
//
|
audio.onSeeked(function(){
|
if(_ts.loop){
|
_ts.play();
|
};
|
});
|
|
|
|
}
|
// 播放
|
play(){
|
const _ts = this;
|
_ts.status = 'play';
|
_ts.audio.play();
|
_ts.eventPlay();
|
}
|
// 暂停
|
pause(){
|
const _ts = this;
|
_ts.status = 'pause';
|
_ts.audio.pause();
|
_ts.eventPause();
|
}
|
// 停止
|
stop(){
|
const _ts = this;
|
_ts.status = 'stop';
|
_ts.audio.stop();
|
_ts.eventStop();
|
}
|
// 销毁
|
destroy(){
|
const _ts = this;
|
_ts.stop();
|
_ts.audio.destroy();
|
}
|
eventCanplay(){}
|
eventTimeUpdate(){}
|
eventEnded(){}
|
eventError(){}
|
eventPause(){}
|
eventPlay(){}
|
eventSeeked(){}
|
eventSeeking(){}
|
eventStop(){}
|
eventWaiting(){}
|
};
|
module.exports = Audio;
|
