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DEMO_h5-audio.html
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DEMO_h5-audio.html
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<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link rel="stylesheet" type="text/css" href="font-awesome/css/font-awesome.min.css">
<title>my audio</title>
<style>
* {
margin: 0;
padding: 0;
}
body {
padding: 5%;
font-family: "微软雅黑";
-webkit-tap-highlight-color: transparent;
}
.audio-container {
width: 438px;
background: yellow;
}
.my-audio {
font-size: 0;
margin: 0 auto;
position: relative;
background: rgba(60, 60, 75, 0.9);
width: 100%;
height: 44px;
}
.button-box {
display: inline-block;
width: 44px;
text-align: center;
height: 100%;
}
.play-controller {
position: relative;
top: 50%;
transform: translate(0,-50%);
border: transparent;
color: #fff;
font-size: 22px!important;
cursor: pointer;
}
.bar-wrapper {
vertical-align: top;
display: inline-block;
width: 320px;
height: 100%;
}
.progress-bar {
position: relative;
top: 50%;
transform: translate(0,-50%);
width: 100%;
height: 6px;
background: rgba(157, 158, 158, 1);
font-size: 0;
}
.buffered-range {
display: inline-block;
background: rgba(60, 60, 75, 1);
height: inherit;
}
.played-range {
display: inline-block;
width: 0;
background: rgba(216, 216, 219, 1);
height: inherit;
}
.drag-ball {
position: relative;
height: 12px;
width: 12px;
left: 100%;
top:50%;
transform: translate(-50%,-50%);
border-radius: 50px;
background: #fff;
}
.time-box {
float: right;
margin-top: 30px;
width: 100px;
font-size: 10px;
color: #fff;
}
.time-detail {
position: relative;
text-align: center;
top: 50%;
transform: translate(0,-50%);
}
.speed-box {
float: right;
clear: both;
width: 44px;
height: 100%;
color: #fff;
}
.speed {
position: relative;
top: 50%;
transform: translate(0,-50%);
}
.speed p {
text-align: center;
font-size: 10px;
}
</style>
<script type="text/javascript" src="EventEmitter.js"></script>
<script type="text/javascript" src="jquery.min.js"></script>
</head>
<body>
<audio id="audio" src="" loop="loop"></audio>
<div class="audio-container">
<div id="my-audio" class="my-audio">
<div class="button-box">
<i id="play-controller" class="fa fa-play play-controller"></i>
</div>
<div id="bar-wrapper" class="bar-wrapper">
<div id="progress-bar" class="progress-bar">
<div id="played-range" class="played-range">
<div id="drag-ball" class="drag-ball"></div>
</div>
<div id="buffered-range" class="buffered-range"></div>
</div>
<div class="time-box">
<div class="time-detail">
<span id="current-time">00:00:00</span>/<span id="audio-duration">00:00:00</span>
</div>
</div>
</div>
<div class="speed-box">
<div class="speed">
<p>1.0<br>倍速</p>
</div>
</div>
</div>
</div>
<script type="text/javascript">
(function($) {
getBarWidth();
getSong();
})(jQuery);
var barWidth;
var ox = 0;
var left = 0;
var oldLeft = 0;
var statu = false;
var newTime = 0;
var progBarLeft = 0;
//UI：获取进度条宽度
function getBarWidth() {
var $barWrapper = $('#bar-wrapper');
var $myAudio = $('#my-audio');
var audioWidth = $myAudio.width();
window.barWidth = (parseInt(audioWidth) - 88);
$barWrapper.width(barWidth);
}
//获取音频资源
function getSong() {
audio = document.getElementById("audio");
audio.src = "http://playback2.duobeiyun.com/jze9087c3cb20148a3b992ea51b438cd75/streams/out-audio-jz38495f9861824801983bc87219637f3f_f_1479106927926_t_1479121820975.m4a";
addAudioEventListener();
checkStorage();
}
//开始监控audio事件
function addAudioEventListener() {
//音频metadata加载完成；UI：显示音频总时间
audio.addEventListener('loadedmetadata', function() {
timeFilter(audio.duration, "audio-duration");
}, false);
//音频正在缓存
audio.addEventListener('progress', function() {
EE_fire("AUDIO_ON_PROGRESS");
}, false);
//播放时间改变；实时保存播放状态
audio.addEventListener('timeupdate', function() {
newTime = audio.currentTime;
localStorage.setItem('storCurTime', audio.currentTime);
setPlyRange(newTime);
setPlyTime(newTime);
}, false);
}
//检测并获取本地保存的时间进度
function checkStorage() {
if (localStorage.getItem('storCurTime')) {
setCurTime();
} else {
addClickListeners();
}
}
//有本地的时间进度时，调整播放时间
function setCurTime() {
audio.addEventListener('loadedmetadata', function() {
var maxWidth = $('#progressBar').width();
var newTime = 0;
console.log("setCurTime", localStorage.getItem('storCurTime'));
audio.currentTime = localStorage.getItem('storCurTime');
newTime = audio.currentTime;
setPlyRange(newTime);
setPlyTime(newTime);
addClickListeners();
}, false);
}
//UI：setCurTime之后改变播放进度条
function setPlyRange(time) {
var $plyRange = $('#played-range');
var newWidth = (time / audio.duration) * barWidth;
console.log("time--", time, "duration--", audio.duration, "barWidth--", barWidth, "newWidth--", newWidth);
$plyRange.width(newWidth);
}
//UI：setCurTime之后改变播放时间
function setPlyTime(time) {
timeFilter(time, "current-time");
}
//UI：显示加载进度条
EE_on("AUDIO_ON_PROGRESS", showBuf);
function showBuf() {
for (var i = audio.buffered.length - 1; i >= 0; i--) {
console.log("buffered ", i, ' -- ', audio.currentTime, ' == ', audio.buffered.start(i), audio.buffered.end(i));
if (audio.buffered.start(i) < audio.currentTime && audio.buffered.end(i) > audio.currentTime) {
var $bufferedRange = $('#buffered-range');
var $plyRange = $('#played-range');
// var endTime = audio.buffered.end(i);
console.log("endTimeI ", i, "audio currentTime: ", audio.currentTime, " buffered start: ", audio.buffered.start(i), " buffered end: ", audio.buffered.end(i));
var bufRange = ((audio.buffered.end(i) - audio.currentTime) / audio.duration) * barWidth;
// console.log("bufRange ", bufRange, audio.currentTime);
$('#buffered-range').width(parseInt(bufRange));
}
}
}
//添加控制事件
function addClickListeners() {
//播放开关点击事件
$('#play-controller').click(function() {
if ($('#play-controller').hasClass('fa-play')) {
$('#play-controller').addClass('fa-pause').removeClass('fa-play');
audio.play();//播放
} else {
$('#play-controller').addClass('fa-play').removeClass('fa-pause');
audio.pause();//暂停
}
});
//mousedown事件；控制audio暂停
$('#bar-wrapper').mousedown(function(e) {
ox = e.pageX - left;
statu = true;
progBarLeft = $('#progress-bar').offset().left;
left = e.pageX - progBarLeft;
limit = parseInt(barWidth) - 1;
if (left < 0) {
left = 0;
}
if (left > barWidth) {
left = barWidth;
}
$('#played-range').width(left);
oldLeft = left;
newTime = (left / barWidth) * audio.duration;
audio.currentTime = newTime;
setPlyTime(newTime);
setPlyRange(newTime);
$('#play-controller').addClass('fa-play').removeClass('fa-pause');
audio.pause();
});
//mousemove事件；控制播放器时间
$('body').mousemove(function(e) {
if (statu) {
left = e.pageX - ox;
//区域判断
if (left < 0) {
left = 0;
}
if (left > barWidth) {
left = barWidth;
}
$('#played-range').width(left);
newTime = (left / barWidth) * audio.duration;
setPlyTime(newTime);
setPlyRange(newTime);
//避免buffer条超出audio
totalWidth = parseInt($('#played-range').width() + $('#buffered-range').width());
if (totalWidth > barWidth) {
$('#buffered-range').width(0);
}
}
});
//mouseup事件
$('#bar-wrapper').mouseup(function() {
$('#play-controller').addClass('fa-pause').removeClass('fa-play');
audio.play();//播放
statu = false;
newTime = (left / barWidth) * audio.duration;
audio.currentTime = newTime;
totalWidth = parseInt($('#played-range').width() + $('#buffered-range').width());
if (totalWidth > barWidth) {
$('#buffered-range').width(0);
}
});
}
//tools
//修改时间的显示格式
function timeFilter(time, timePlace) {
var timePlace = document.getElementById(timePlace);
var hour = time / 3600;
var hours = parseInt(hour);
if (hours < 10) {
hours = "0" + hours;
}
var minute = time / 60 - 60 * hours ;
var minutes = parseInt(minute);
if (minutes < 10) {
minutes = "0" + minutes;
}
var second = time % 60;
seconds = parseInt(second);
if (seconds < 10) {
seconds = "0" + seconds;
}
var allTime = "" + hours + "" + ":" + "" + minutes + "" + ":" + "" + seconds + "";
timePlace.innerHTML = allTime;
}
</script>
</body>
</html>