我正在使用Wordpress，我已经有很多嵌入了Youtube视频的帖子。如何在不重写所有帖子的情况下检测视频何时停止播放？
我知道你可以使用Youtube播放器API（下图）
<!DOCTYPE html>
<html>
<body>
<!-- 1. The <iframe> (and video player) will replace this <div> tag. -->
<div id="player"></div>
<script>
// 2. This code loads the IFrame Player API code asynchronously.
var tag = document.createElement('script');
tag.src = "https://www.youtube.com/iframe_api";
var firstScriptTag = document.getElementsByTagName('script')[0];
firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
// 3. This function creates an <iframe> (and YouTube player)
// after the API code downloads.
var player;
function onYouTubeIframeAPIReady() {
player = new YT.Player('player', {
height: '390',
width: '640',
videoId: 'M7lc1UVf-VE',
events: {
'onReady': onPlayerReady,
'onStateChange': onPlayerStateChange
}
});
}
// 4. The API will call this function when the video player is ready.
function onPlayerReady(event) {
event.target.playVideo();
}
// 5. The API calls this function when the player's state changes.
// The function indicates that when playing a video (state=1),
// the player should play for six seconds and then stop.
var done = false;
function onPlayerStateChange(event) {
if (event.data == YT.PlayerState.PLAYING && !done) {
setTimeout(stopVideo, 6000);
done = true;
}
}
function stopVideo() {
player.stopVideo();
}
</script>
</body>
</html>
但是在我所有的帖子中，我都嵌入了这样的视频：
<iframe width="640" height="390" frameborder="0" type="text/html" src="http://www.youtube.com/embed/u1zgFlCw8Aw?enablejsapi=1"></iframe>
这就是我到目前为止所做的。
onYouTubePlayerReady();
function onYouTubePlayerReady() {
//ytplayer = document.getElementById(playerId);
ytplayer = $('iframe[src^="http://youtube.com/embed/"]');
ytplayer.addEventListener("onStateChange", "onytplayerStateChange");
}
function onytplayerStateChange(newState) {
if(newState==YT.PlayerState.ENDED){
alert('stop');
}
}
我不想浏览我所有的帖子并一一编辑它们。有没有办法对所有嵌入的视频进行全局挂钩？
据我所知，当您已经将视频嵌入iframe时，您无法使用Youtube API来检测播放器更改。
所以一个解决方案是使用 jQuery 找到 iframe，从 src 属性中获取视频 ID，删除 iframe，然后让 Youtube API 再次将视频嵌入到同一个地方。 我已经重写了你的代码，这应该让你开始。您可以在某种全局模板中插入代码，以便它适用于每个博客项目。
（我无法让它在 FiddleJS 上运行，但它可以很好地将代码保存为本地文件。
<html>
<body>
<iframe width="640" height="390" frameborder="0" type="text/html" src="http://www.youtube.com/embed/u1zgFlCw8Aw?enablejsapi=1"></iframe>
<script type="text/javascript">
function getVideoID(){
var videoIframe = $('iframe');
var videoURL = videoIframe.attr('src');
var id = videoURL.split("/")[4].split("?")[0];
videoIframe.after('<div id="player"></div>');
videoIframe.remove();
return (id);
}
// 3. This function creates an <iframe> (and YouTube player)
// after the API code downloads.
var player;
function onYouTubeIframeAPIReady() {
var videoID = getVideoID();
player = new YT.Player('player', {
height: '195',
width: '320',
videoId: videoID,
events: {
'onReady': onPlayerReady,
'onStateChange': onPlayerStateChange
}
});
function onPlayerReady(event) {
event.target.playVideo();
}
function onPlayerStateChange(event) {
var state = event.target.getPlayerState();
if (state === 2) {
alert("Paused");
}
else if (state === 0) {
alert("Ended");
}
}
}
</script>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js">"></script>
<script type="text/javascript" src="https://www.youtube.com/iframe_api"></script>
</body>
</html>