YouTube播放列表在单个页面上嵌入多个播放列表的脚本(jQuery/CSS/HTML+CodePen)

Question

我已经完成了一半。我使用的脚本允许您使用JQuery、CSS和HTML将YouTube播放列表嵌入任何网页。

代码运行良好，但唯一的问题是我不确定如何一次在一个网页上实现多个播放列表。

我开发了一个代码笔(如下)，它展示了手头的主要问题。

目前有三个播放列表，但只有第一个显示，而其他两个根本没有显示。不确定这是否与YouTube的API、脚本配置或其他方面有关。

有人能帮我吗？

参考：https://codepen.io/anon/pen/NaygEm

(function() {
var tag = document.createElement('script');
tag.src = "https://www.youtube.com/iframe_api";
var firstScriptTag = document.getElementsByTagName('script')[0]; //Find the first script tag in the html
firstScriptTag.parentNode.insertBefore(tag, firstScriptTag); //Put this script tag before the first one
var player; //The Youtube API player
var playlistID = $('#ytpl-player').data('pl');
var $ul = $('#ytpl-thumbs');
var nowPlaying = "ytpl-playing";
var nowPlayingClass = "." + nowPlaying;
function getPlaylistData() {
var apiKey = 'AIzaSyDI4rWo_wVAxRZEIgF6_8sRZDj8OCOZZ38';
var url = 'https://www.googleapis.com/youtube/v3/playlistItems?part=snippet';
var data = {
'playlistId': playlistID,
'key': apiKey,
'maxResults': 4
}
$.get(url, data, function(e) {
buildHTML(e.items)
})
}
function buildHTML(data) {
var list_data = '';
data.forEach(function(e, i) {
var item = e.snippet;
if (item.thumbnails) {
list_data += '<li><button data-ytpl-index="'+ i +'" data-ytpl-title="' + item.title + '" data-ytpl-desc="' + item.description + '"><p>' + item.title + '</p><img alt="'+ item.title +'" src="'+ item.thumbnails.medium.url +'"/></button></li>';
}
})
$ul.html(list_data);
//
// $('.ytpl-flexslider').flexslider({
//  animation: "slide",
//  startAt: 0,
//  slideshow: false,
//  touch: true,
//  prevText: "",
//  itemWidth: "25%",
//  nextText: "",
//  pausePlay: !0,
//  pauseText: "Pause",
//  playText: "Play",
//  pauseOnHover: !0,
//  useCSS: true
// })
}
// generate playlist items once main player has loaded
function onPlayerReady(event) {
getPlaylistData();
}
window.onYouTubeIframeAPIReady = function() {
var player = new YT.Player('ytpl-player', {
height: '360',
width: '640',
playerVars: {
listType:'playlist',
list: playlistID
},
events: {
'onReady': onPlayerReady,
'onStateChange': onPlayerStateChange
}
});
function updateTitles($this) {
$('#ytpl-title').text( $this.data('ytpl-title') )
$('#ytpl-desc').text( $this.data('ytpl-desc') )
}

function onPlayerStateChange(e) {
var $buttons = $ul.find('button');
var currentIndex = player.getPlaylistIndex();
// remove existing active class, add to currently playing
if (e.data === YT.PlayerState.PLAYING) {
$buttons.removeClass(nowPlaying);
$buttons.eq(currentIndex).addClass(nowPlaying);
}
// if last video has finished playing
if (e.data === YT.PlayerState.ENDED && currentIndex === $buttons.length - 1) {
$buttons.removeClass(nowPlaying);
}
updateTitles($buttons.eq(currentIndex))
}
// handle playlist button click
$(document).on('click', '[data-ytpl-index]:not(".ytpl-playing")',function(e) {
e.preventDefault();
var $this = $(this);
var index = $this.data('ytpl-index');
updateTitles($this);
if (navigator.userAgent.match(/(iPad|iPhone|iPod)/g)) {
player.cuePlaylist({
listType: 'playlist',
list: playlistID,
index: index,
suggestedQuality: 'hd720' //quality is required for cue to work, for now. https://code.google.com/p/gdata-issues/issues/detail?id=5411
});
} else {
player.playVideoAt(index); //Play the new video, does not work for IOS 7
}
});
};
})();

Answer 1

您对多个div使用相同的id。只能指定唯一的id。对于ytpl-thumbs，您可以使用class而不是id，并且对于每个玩家使用唯一的id：

检查这个小提琴

HTML

<div class="sidebar">
<h1>Playlist (1): Birds</h1>
<div class="container">
<div class="ypt_wrapper">
<div class="video embed-container">
<div id="ytpl-player1" data-pl="PLBhKKjnUR0XB8DwQwXqBsChb48E8jzfr-">
</div>
</div>
<div>
<h2 class="ytpl-title"></h2>
<div class="ytpl-desc"></div>
</div>
<div class="ytpl-flexslider">
<ul class="ytpl--thumbs slides"></ul>
</div>
</div>
</div>
</div>
<div class="sidebar">
<h1>Playlist (2): Owls</h1>
<div class="container">
<div class="ypt_wrapper">
<div class="video embed-container">
<div id="ytpl-player2" data-pl="PLBhKKjnUR0XAM2Wvi7JY5gLRpFLzIE-An">
</div>
</div>
<div>
<h2 class="ytpl-title"></h2>
<div class="ytpl-desc"></div>
</div>
<div class="ytpl-flexslider">
<ul class="ytpl--thumbs slides"></ul>
</div>
</div>
</div>
</div>
<div class="sidebar">
<h1>Playlist (3): Misc. Animals</h1>
<div class="container">
<div class="ypt_wrapper">
<div class="video embed-container">
<div id="ytpl-player3" data-pl="PLBhKKjnUR0XCGuLxsESq7WMlIwZIH9tIi">
</div>
</div>
<div>
<h2 class="ytpl-title"></h2>
<div class="ytpl-desc"></div>
</div>
<div class="ytpl-flexslider">
<ul class="ytpl--thumbs slides"></ul>
</div>
</div>
</div>
</div>

Javascript

var tag = document.createElement('script');
tag.src = "https://www.youtube.com/player_api";
var firstScriptTag = document.getElementsByTagName('script')[0];
firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
var players = new Array();
var players_list = ["ytpl-player1", "ytpl-player2", "ytpl-player3"];
var nowPlaying = "ytpl-playing";
var nowPlayingClass = "." + nowPlaying;
function getPlaylistData(playerName) {
var apiKey = 'AIzaSyDI4rWo_wVAxRZEIgF6_8sRZDj8OCOZZ38';
var url = 'https://www.googleapis.com/youtube/v3/playlistItems?part=snippet';
var data = {
'playlistId': $('#' + playerName).data('pl'),
'key': apiKey,
'maxResults': 4
};
$.get(url, data, function(e) {
buildHTML(playerName, e.items)
})
}
function buildHTML(playerName, data) {
var list_data = '';
data.forEach(function(e, i) {
var item = e.snippet;
if (item.thumbnails) {
list_data += '<li><button data-ytpl-index="' + i + '" data-ytpl-title="' + item.title + '" data-ytpl-desc="' + item.description + '"><p>' + item.title + '</p><img alt="' + item.title + '" src="' + item.thumbnails.medium.url + '"/></button></li>';
}
});
$('#' + playerName).closest('.ypt_wrapper').find('.ytpl--thumbs').html(list_data);
}
// generate playlist items once main player has loaded
function onPlayerReady(event) {
getPlaylistData(event.target.name);
}
function onYouTubeIframeAPIReady() {
for (item in players_list) {
players[players_list[item]] = new YT.Player(players_list[item], {
height: '360',
width: '640',
playerVars: {
listType: 'playlist',
list: $('#' + players_list[item]).data('pl')
},
events: {
'onReady': onPlayerReady,
'onStateChange': onPlayerStateChange
}
});
players[players_list[item]].name = players_list[item];
}
}
function updateTitles($this) {
$('#ytpl-title').text($this.data('ytpl-title'))
$('#ytpl-desc').text($this.data('ytpl-desc'))
}
function onPlayerStateChange(event) {
var $buttons = $('#' + event.target.name).closest('.ypt_wrapper').find('.ytpl--thumbs').find('button');
var currentIndex = event.target.getPlaylistIndex();
// remove existing active class, add to currently playing
if (event.data === YT.PlayerState.PLAYING) {
$buttons.removeClass(nowPlaying);
$buttons.eq(currentIndex).addClass(nowPlaying);
}
// if last video has finished playing
if (event.data === YT.PlayerState.ENDED && currentIndex === $buttons.length - 1) {
$buttons.removeClass(nowPlaying);
}
updateTitles($buttons.eq(currentIndex))
}
// handle playlist button click
$(document).on('click', '[data-ytpl-index]:not(".ytpl-playing")', function(e) {
e.preventDefault();
var $this = $(this);
var index = $this.data('ytpl-index');
var playerName = $(this).closest('.ypt_wrapper').find('iframe').attr('id');
updateTitles($this);
if (navigator.userAgent.match(/(iPad|iPhone|iPod)/g)) {
players[playerName].cuePlaylist({
listType: 'playlist',
list: $('#' + players_list[playerName]).data('pl'),
index: index,
suggestedQuality: 'hd720'
});
} else {
players[playerName].playVideoAt(index); //Play the new video, does not work for IOS 7
}
});