【html5】html5 自定义播放器核心代码-播放器

function doFisrt()
{
barSize=600; //注意不要使用px单位，且不要用var，是全局变量
myMovie=document.getElementById('myMovie');
playButton=document.getElementById('playButton');
bar=document.getElementById('defaultBar');
progressBar=document.getElementById('progressBar');
playButton.addEventListener('click',playOrPause,false); //第三个参数总是false, Register the event handler for the bubbling phase.
bar.addEventListener('click',clickedBar,false);
}
//控制movie播放和停止
function playOrPause(){
if(!myMovie.paused && !myMovie.ended){
myMovie.pause();
playButton.innerHTML='Play';
window.clearInterval(updatedBar);
}else{
myMovie.play();
playButton.innerHTML='pause';
updatedBar=setInterval(update,500);
}
}
//控制进度条的动态显示
function update(){
if(!myMovie.ended){
var size=parseInt(myMovie.currentTime*barSize/myMovie.duration);
progressBar.style.width=size+'px';
}else{
progressBar.style.width='0px';
playButton.innerHTML='Play';
window.clearInterval(updatedBar);
}
}
//鼠标点击进度条控制方法
function clickedBar(e){
if(!myMovie.paused && !myMovie.ended){
var mouseX=e.pageX-bar.offsetLeft;
var newtime=mouseX*myMovie.duration/barSize; //new starting time
myMovie.currentTime=newtime;
progressBar.style.width=mouseX+'px';
window.clearInterval(updatedBar);
}
}
window.addEventListener('load',doFisrt,false);