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我一直在用HTML構建一個定製的視頻播放器,我遇到了一個問題,我懷疑它存在於我的javascript中,解決它我承認失敗。javascript with html <video> load()&play()函數不能觸發
問題是我的'loadChapter()'函數從我所能看到的正確運行,但是當第二次觸發時,video.load()和video.play()方法似乎停止工作。
由於與客戶端的披露協議,我不能包含實際頁面的鏈接,下面是審查代碼。
HTML:
<div id="shell">
<div id="sidebar">
<div id="logo">
<a href="#">X</a>
</div>
<nav>
<ul id="chapters">
<li><a href="X">1.<span>X</span><div class="clear"> </div></a></li>
<li><a href="X">2.<span>X</span><div class="clear"> </div></a></li>
<li><a href="X">3.<span>X</span><div class="clear"> </div></a></li>
<li><a href="X">4.<span>X</span><div class="clear"> </div></a></li>
<li><a href="X">5.<span>X</span><div class="clear"> </div></a></li>
<li><a href="X">6.<span>X</span><div class="clear"> </div></a></li>
<li><a href="X">7.<span>X</span><div class="clear"> </div></a></li>
</ul>
</nav>
<div id="controls">
<div id="vidnav">
<a id="prev" title="Previous Chapter" href="#">Prev</a>
<div>
<a id="play" title="Play Chapter" href="#" onclick="document.getElementById('video').play()" style="display:none;">Play</a>
<a id="pause" title="Pause Chapter" href="#" onclick="document.getElementById('video').pause()">Pause</a>
</div>
<a id="next" title="Next Chapter" href="#">Next</a>
</div>
<div class="clear"> </div>
<div id="vidseek">
</div>
</div>
</div>
<div id="content">
<video id="video" autoplay="autoplay">
<source id="mp4" src="video/X.mp4" type='video/mp4; codecs="avc1.42E01E, mp4a.40.2"' />
<source id="webm" src="video/X.webm" type='video/webm; codecs="vp8, vorbis"' />
Your browser does not support HTML video.
</video>
</div>
</div>
的JavaScript(用jQuery):
$(document).ready(function(){
var shell = "#shell";
var objH = $(shell).outerHeight();
autoMargins(shell);
$(window).resize(function() {
autoMargins(shell);
});
function autoMargins(obj){
var winH = $(window).height();
if (winH >= objH) {
var topMargin = (winH/2) - (objH/2);
$(obj).css('marginTop', topMargin);
};
};
// GET VIDEO FILES
var video = document.getElementById('video')
var filepath = "video/";
var chapters = new Array();
var totalChapters = $('#chapters li').length;
for(i=0; i < totalChapters; i++) {
chapters[i] = new Array();
filename = $('#chapters li a:eq(' + i + ')').attr('href');
for(j=0; j < 3; j++) {
chapters[i][0] = filepath + filename + ".png";
chapters[i][1] = filepath + filename + ".mp4";
chapters[i][2] = filepath + filename + ".webm";
};
};
// CHAPTER CONTROLS
var currentChapter = 0;
$('#chapters li a').click(function(e) {
e.preventDefault();
currentChapter = $(this).parent().index();
loadChapter(currentChapter);
});
var mp4 = document.getElementById("mp4");
var webm = document.getElementById("webm");
function loadChapter(i) {
$('#video').attr('poster', chapters[i][0]);
mp4.setAttribute("src", chapters[i][1]);
webm.setAttribute("src", chapters[i][2]);
video.load();
video.play();
};
$('#play').click(function(e) {
e.preventDefault();
$('#play').toggle();
$('#pause').toggle();
});
$('#pause').click(function(e) {
e.preventDefault();
$('#play').toggle();
$('#pause').toggle();
});
$('#next').click(function(e) {
e.preventDefault();
if (currentChapter < totalChapters) {
currentChapter++;
loadChapter(currentChapter);
};
});
$('#prev').click(function(e) {
e.preventDefault();
if (currentChapter >= 0) {
currentChapter--;
loadChapter(currentChapter);
};
});
});
視頻標籤和dom中標記的'海報'通過loadChapter()腳本正確加載,但我很難弄清楚爲什麼視頻只能加載和播放一次。
有什麼我在這裏失蹤?