我在网页中有一个音频元素,我想确保用户在离开页面时仍然没有播放它.如何在卸载页面时确保音频元素没有播放？到目前为止,我有以下代码,但它似乎不起作用;卸载报告时弹出的对话框,即使正在播放音频,播放也是假的：
<!DOCTYPE HTML><html>
<head>
<script><!-- Loading Scripts -->
function unloadTasks(){
if (playing && !window.confirm("A podcast is playing,and navigating away from this page will stop that. Are you sure you want to go?"))
window.alert("Here is where I will stop the page from unloading... somehow");
}
</script>
<script><!-- Player Scripts -->
var playing = false;
function logPlay(){
playing = isPlaying("e1audPlayer");
}
function isPlaying(player){
return document.getElementById(player).currentTime > 0 && !document.getElementById(player).paused && !document.getElementById(player).ended;
}
</script>
</head>
<body onunload="unloadTasks()">
<audio id="e1audPlayer" style="width:100%;" controls="controls" preload="auto" onplaying="logPlay()" onpause="logPlay()">
<source src="http://s.supuhstar.operaunite.com/s/content/pod/ADHD Episode 001.mp3" type="audio/mpeg"/>
<source src="http://s.supuhstar.operaunite.com/s/content/pod/ADHD Episode 001.ogg" type="audio/ogg"/>
Your browser does not support embedded audio players. Try <a href="http://opera.com/">Opera</a> or <a href="http://chrome.com/">Chrome</a>
</audio>
</body>
</html>
解决方法
function isPlaying(playerId) {
var player = document.getElementById(playerId);
return !player.paused && !player.ended && 0 < player.currentTime;
}
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