我非常喜歡新手。我一直在用HTML,CSS和Javascript編寫自定義音頻播放器,它只包含播放/暫停切換按鈕和歌曲標題。如果您將鼠標懸停在歌曲標題上,則會顯示包含其他歌曲標題的下拉菜單。由於下拉菜單是一個簡單的無序列表項,我想知道如何將音頻播放器的歌曲標題空間的innerHTML設置爲點擊列表項的innerHTML。將innerHTML從一個元素複製到另一個元素
HTML
<li class="dropdownList" onclick="run">Track 1</li>
<li class="dropdownList" onclick="run">Track 2</li>
<li class="dropdownList" onclick="run">Track 3</li>
JS
var songtitle = document.getElementById('songtitle');
var dropdownList = document.getElementsByClassName('dropdownList');
function run() {
songtitle.innerHTML = dropdownList(i).innerHTML;
}
我還試圖消除HTML函數調用,並用純JS
dropdownList[i].addEventListener("click", run)
下面是詳細...
<div id="div-player">
<button id="pButton" class="play" onclick="playPause()"></button>
<ul>
<li>
<a href="#" id="songtitle">fill innerhtml with song title</a>
<ul>
<li class="dropdownList" onclick="run()">Track 1</li>
<li class="dropdownList" onclick="run()">Track 2</li>
<li class="dropdownList" onclick="run()">Track 3</li>
</ul>
</li>
</ul>
</div>
JS
var audioElement = document.getElementById("audioElement");
var pButton = document.getElementById('pButton');
var songtitle = document.getElementById('songtitle');
var dropdownList = document.getElementsByClassName('dropdownList');
var i=1;
function playPause() {
if (audioElement.paused) {
pButton.className = "";
pButton.className = "pause";
if (i == 6) i = 1;
var nextTrack = "music/track"+i+".mp3";
var getTime = audioElement.currentTime;
audioElement.src = nextTrack; //currentTime resets after this statement
audioElement.onloadedmetadata = function(){
audioElement.currentTime = getTime;
audioElement.play();
}
i++;
audioElement.addEventListener('ended', playPause);
} else {
pButton.className = "";
pButton.className = "play";
i--;
audioElement.pause();
}
}
function run() {
//stop or pause the audio
songtitle.innerHTML = dropdownList(i).innerHTML;
//start the playPause function again, setting i equal to the list item number that was clicked on (for example "1" or "2" or "3")
}
http://stackoverflow.com/questions/3545341/jquery-get-the-id -li-after-click-click-function可能會有幫助,但是,問題和接受的答案使用jquery而不是純粹的javascript – scoots