html5左侧悬浮音乐播放器插件QPlayer 可自定义音乐 自定义音乐数量,点击拖动标题栏快进(快退)
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(function($){
// Settings
var isShowNotification = false,
isInitMarquee = true,
shuffleArray = [],
shuffleIndex,
autoClearTimer,
autoShowTimer,
isFirstPlay = localStorage.qplayer == undefined? true: false,
isShuffle = localStorage.qplayer == undefined? false: localStorage.qplayer === 'true'? true: false;
// Load playlist
for (var i = 0; i < playlist.length; i++){
var item = playlist[i];
$('#playlist').append('<li class="lib" style="overflow:hidden;"><strong style="margin-left: 5px;">'+item.title+'</strong><span style="float: right;" class="artist">'+item.artist+'</span></li>');
if (item.mp3 == "") {
$('#playlist li').eq(i).css('color', '#ddd');
}
}
var currentTrack = 0, audio, timeout;
var shuffle_array = localStorage.qplayer_shuffle_array;
if (isShuffle && shuffle_array != undefined && playlist.length === (shuffleArray=JSON.parse(shuffle_array)).length) {
currentTrack = shuffleArray[0];
shuffleIndex = 0;
$('#QPlayer .cover').attr('title', '点击关闭随机播放');
} else {
isShuffle = false;
$('#QPlayer .cover').attr('title', '点击开启随机播放');
}
//判断是否显示滚动条
var totalHeight = 0;
for (var i = 0; i < playlist.length; i++){
totalHeight += ($('#playlist li').eq(i).height() + 6);
}
if (totalHeight > 360) {
$('#playlist').css("overflow", "auto");
if (isShuffle) {
var temp = 0;
for (var j = 0; j < currentTrack; j++) {
temp += ($('#playlist li').eq(j).height() + 6);
}
$('#playlist').scrollTop(temp);
}
}
var play = function(){
audio.play();
if (isRotate) {
$("#player .cover img").css("animation","9.8s linear 0s normal none infinite rotate");
$("#player .cover img").css("animation-play-state","running");
}
$('.playback').addClass('playing');
timeout = setInterval(updateProgress, 500);
//超过显示栏运行跑马灯
if(isExceedTag()) {
if (isInitMarquee) {
initMarquee();
isInitMarquee = false;
} else {
$('.marquee').marquee('resume');
}
}
}
var pause = function(){
audio.pause();
$("#player .cover img").css("animation-play-state","paused");
$('.playback').removeClass('playing');
clearInterval(timeout);
if(isExceedTag()) {
$('.marquee').marquee('pause');
}
}
// Update progress
var setProgress = function(value){
var currentSec = parseInt(value%60) < 10 ? '0' + parseInt(value%60) : parseInt(value%60),
ratio = value / audio.duration * 100;
$('.timer').html(parseInt(value/60)+':'+currentSec);
}
var updateProgress = function(){
setProgress(audio.currentTime);
}
// Switch track
var switchTrack = function(i){
if (i < 0){
track = currentTrack = playlist.length - 1;
} else if (i >= playlist.length){
track = currentTrack = 0;
} else {
track = i;
}
isInitMarquee = true;
$('audio').remove();
loadMusic(track);
play();
}
// Shuffle
var shufflePlay = function(i){
if (i === 1) {
//下一首
if (++shuffleIndex === shuffleArray.length) {
shuffleIndex = 0;
}
currentTrack = shuffleArray[shuffleIndex];
} else if (i === 0) {
//上一首
if (--shuffleIndex < 0) {
shuffleIndex = shuffleArray.length - 1;
}
currentTrack = shuffleArray[shuffleIndex];
}
switchTrack(currentTrack);
}
// Fire when track ended
var ended = function(){
pause();
audio.currentTime = 0;
if (isShuffle){
shufflePlay(1);
} else {
if (currentTrack < playlist.length) switchTrack(++currentTrack);
}
}
var beforeLoad = function(){
var endVal = this.seekable && this.seekable.length ? this.seekable.end(0) : 0;
}
// Fire when track loaded completely
var afterLoad = function(){
if (autoplay == true) play();
}
// Load track
var loadMusic = function(i){
var item = playlist[i];
while (item.mp3 == "") {
showNotification('歌曲地址为空，已自动跳过');
if (isShuffle) {
if (++shuffleIndex === shuffleArray.length) {
shuffleIndex = 0;
}
i = currentTrack = shuffleArray[shuffleIndex];
} else {
currentTrack = ++i;
}
item = playlist[i];
}
var newaudio = $('<audio>').html('<source src="'+item.mp3+'"><source src="'+item.ogg+'">').appendTo('#player');
$('.cover').html('<img src="'+item.cover+'" alt="'+item.album+'">');
$('.musicTag').html('<strong>'+item.title+'</strong><span> - </span><span class="artist">'+item.artist+'</span>');
$('#playlist li').removeClass('playing').eq(i).addClass('playing');
audio = newaudio[0];
audio.addEventListener('progress', beforeLoad, false);
audio.addEventListener('durationchange', beforeLoad, false);
audio.addEventListener('canplay', afterLoad, false);
audio.addEventListener('ended', ended, false);
}
loadMusic(currentTrack);
$('.playback').on('click', function(){
if ($(this).hasClass('playing')){
pause();
} else {
play();
}
});
$('.rewind').on('click', function(){
if (isShuffle){
shufflePlay(0);
} else {
switchTrack(--currentTrack);
}
});
$('.fastforward').on('click', function(){
if (isShuffle){
shufflePlay(1);
} else {
switchTrack(++currentTrack);
}
});
$('#playlist li').each(function(i){
$(this).on('click', function(){
if (isShuffle) {
for (var j = 0; j < shuffleArray.length; j++) {
if (shuffleArray[j] === i) {
shuffleIndex = j;
break;
}
}
} else {
currentTrack = i;
}
switchTrack(i);
});
});
$('#QPlayer .liebiao,#QPlayer .liebiao').on('click', function(){
var pl = $('#playlist');
if (pl.hasClass('go') === false) {
pl.css({"max-height":"360px","transition":"max-height .5s ease"});
pl.css("border", "1px solid #dedede");
pl.addClass('go');
} else {
pl.css({"max-height":"0px","transition":"max-height .5s ease"});
pl.css("border", "0");
pl.removeClass('go');
}
});
$("#QPlayer .ssBtn").on('click', function(){
var mA = $("#QPlayer");
if ($('.ssBtn .adf').hasClass('on') === false) {
if (isFirstPlay) {
setTimeout("showTips('#player .cover','点击封面开启(关闭)随机播放', " + function(){setTimeout("showTips('#player .ctrl .musicTag','点击拖动标题栏快进(快退)')", 1000)} + ");", 500);
isFirstPlay = !isFirstPlay;
localStorage.qplayer = 'false';
}
mA.css("transform", "translateX(250px)");
$('.ssBtn .adf').addClass('on');
} else {
mA.css("transform", "translateX(0px)");
$('.ssBtn .adf').removeClass('on')
}
});
$("#player .cover").on('click',function(){
isShuffle = !isShuffle;
if (isShuffle) {
$("#player .cover").attr("title","点击关闭随机播放");
showNotification('已开启随机播放');
var temp = [];
for (var i = 0; i < playlist.length; i++) {
temp[i] = i;
}
shuffleArray = shuffle(temp);
for (var j = 0; j < shuffleArray.length; j++) {
if (shuffleArray[j] === currentTrack) {
shuffleIndex = j;
break;
}
}
localStorage.qplayer_shuffle_array = JSON.stringify(shuffleArray);
} else {
$("#player .cover").attr("title","点击开启随机播放");
showNotification('已关闭随机播放');
localStorage.removeItem('qplayer_shuffle_array');
}
localStorage.qplayer = isShuffle;
});
var startX, endX;
$('#player .ctrl .musicTag').mousedown(function(event){
startX = event.screenX;
}).mousemove(function(event){
//鼠标左键
if (event.which === 1) {
endX = event.screenX;
var seekRange = Math.round((endX - startX) / 678 * 100);
audio.currentTime += seekRange;
setProgress(audio.currentTime);
}
});
$('#player .ctrl .musicTag').bind('touchstart', function(event){
startX = event.originalEvent.targetTouches[0].screenX;
}).bind('touchmove',function(event){
endX = event.originalEvent.targetTouches[0].screenX;
var seekRange = Math.round((endX - startX) / 678 * 100);
audio.currentTime += seekRange;
setProgress(audio.currentTime);
});
})(jQuery);
function initMarquee(){
$('.marquee').marquee({
//speed in milliseconds of the marquee
duration: 15000,
//gap in pixels between the tickers
gap: 50,
//time in milliseconds before the marquee will start animating
delayBeforeStart: 0,
//'left' or 'right'
direction: 'left',
//true or false - should the marquee be duplicated to show an effect of continues flow
duplicated: true
});
}
//检测标题和作者信息总宽度是否超出播放器，超过则返回true开启跑马灯
function isExceedTag() {
var isExceedTag = false;
if ($('.musicTag strong').width() + $('.musicTag span').width() + $('.musicTag .artist').width() > $('.musicTag').width()) {
isExceedTag = true;
}
return isExceedTag;
}
function shuffle(array) {
var m = array.length,
t, i;
// 如果还剩有元素…
while (m) {
// 随机选取一个元素…
i = Math.floor(Math.random() * m--);
// 与当前元素进行交换
t = array[m];
array[m] = array[i];
array[i] = t;
}
return array;
}
function showNotification(info) {
isShowNotification = true;
//判断通知是否存在，存在就移除
if ($('.qplayer-notification').length>0) {
$('.qplayer-notification').remove();
clearTimeout(autoClearTimer);
clearTimeout(autoShowTimer);
}
$('body').append('<div class="qplayer-notification animation-target"><span class="qplayer-notification-icon">i</span><span class="body" style="box-shadow: rgba(0, 0, 0, 0.0980392) 0px 0px 5px;"><span class="message"></span></span><a class="close" href="#" onclick="closeNotification();return false;">×</a><div style="clear: both"></div>');
$('.qplayer-notification .message').text(info);
//用width:auto来自动获取通知栏宽度
var width = $('.qplayer-notification').css({"opacity":"0", "width":"auto"}).width() + 20;
$('.qplayer-notification').css({"width":"50px","opacity":"1"});
autoShowTimer = setTimeout(function(){
$('.qplayer-notification').css({"width":width,"transition":"all .7s ease"});
$('.qplayer-notification .close').delay(500).show(0);
},1500);
autoClearTimer = setTimeout("if ($('.qplayer-notification').length>0) {closeNotification()}",8000);
}
function closeNotification() {
isShowNotification = false;
$('.qplayer-notification').css({"width":"50px","transition":"all .7s ease"});
$('.qplayer-notification .close').delay(500).hide(0);
setTimeout(function(){
if (!isShowNotification) {
$('.qplayer-notification').css("opacity","0");
$('.qplayer-notification-icon').css({"transform":"scale(0)","transition":"transform .5s ease"});
}
},1000);
setTimeout(function(){
if (!isShowNotification) {
$('.qplayer-notification').remove();
}
},1500);
clearTimeout(autoClearTimer);
clearTimeout(autoShowTimer);
}
/*
*div: 要在其上面显示tip的div
*info: tip内容
*func: 不再提示按钮的click绑定函数
*/
function showTips(div, info, func) {
var box_height = 100;
$('body').append('<div class="qplayer_tips"><span class="tips_arrow"></span><span class="info" style="display:none">' + info + '</span><button class="tips_button" onclick="removeTips()">不再提示</button></div>');
$('.qplayer_tips').css({"top":$(div).offset().top-box_height-30-15, "left": $(div).offset().left-28});
$('.qplayer_tips').css({"height":box_height,"transition":"all .5s ease-in-out"});
$('.qplayer_tips .info').delay(500).fadeIn();
$('.tips_arrow').css({"border-width":"15px","transition":"all .5s ease-in-out"});
$('.tips_button').css({"height":"30px","transition":"all .5s ease-in-out"});
if (func != undefined) {
$('.tips_button').click(func);
}
}
function removeTips() {
$('.qplayer_tips .info').fadeOut();
$('.qplayer_tips').css({"height":"0","transition":"all .5s ease-in-out"});
$('.tips_arrow').css({"border-width":"0","transition":"all .5s ease-in-out"});
$('.tips_button').css({"opacity":"0","transition":"all .2s ease-in-out"});
setTimeout(function(){$('.qplayer_tips').remove()}, 500);
}歌曲相关信息都是存放在playlist这个json变量
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