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var v = document.getElementById('video');
var playBtn = document.getElementById('play_btn');
/*播放、暂停
* play, paused
*/
playBtn.textContent = '播放';
playBtn.addEventListener("click", function(){
if(v.paused){
v.play();
playBtn.textContent = '暂停';
}else{
v.pause();
playBtn.textContent = ' 播放 ';
}
});
/**音量
* volume
*/
var volIncBtn = document.getElementById('vol_inc_btn');
var volDecBtn = document.getElementById('vol_dec_btn');
volIncBtn.addEventListener("click", function(){
v.volume > 0.9?v.volume = 1:v.volume += 0.1;
})
volDecBtn.addEventListener("click", function(){
v.volume < 0.1?v.volume = 0:v.volume -= 0.1;
})
/**静音
*muted
*/
var mutedBtn = document.getElementById('muted_btn');
mutedBtn.addEventListener("click", function(){
v.muted = !v.muted;
mutedBtn.textContent = v.muted?'恢复':'静音';
})
/**时间
*currentTime
*/
var nowTime = document.getElementById('now_time');
var duration = document.getElementById('duration');
nowTime.textContent = 0;
duration.textContent = 0;
function parseTime(time){
time = Math.floor(time);
var _m, _s;
_m = Math.floor(time/60);
_s = time - _m*60;
if(_m<10){
_m = '0' + _m;
}
if(_s<10){
_s = '0' + _s;
}
return _m + ':' + _s
}
v.addEventListener('timeupdate', function(){
nowTime.textContent = parseTime(v.currentTime);
getProgress();
})
v.addEventListener('loadedmetadata', function(){
duration.textContent = parseTime(v.duration);
})
/**进度条
*
*/
var progressWrap = document.getElementById("progressWrap");
var playProgress = document.getElementById("playProgress");
function getProgress(){
var percent = v.currentTime / v.duration;
playProgress.style.width = percent * (progressWrap.offsetWidth) + "px";
}
// 鼠标在播放条上点击时进行捕获并进行处理
function videoSeek(e){
if(v.paused || v.ended){
v.play();
}
enhanceVideoSeek(e);
}
function enhanceVideoSeek(e){
var length = e.pageX - progressWrap.offsetLeft;
var percent = length / progressWrap.offsetWidth;
playProgress.style.width = percent * (progressWrap.offsetWidth) + "px";
v.currentTime = percent * v.duration;
}
progressWrap.addEventListener('click', function(e){
console.log('jump');
videoSeek(e);
})
/**播放速度
* playbackRate
*/
var speedUpBtn = document.getElementById('speed_up');
var _speed = 1;
speedUpBtn.addEventListener('click', function(){
changeSpeed();
});
function changeSpeed () {
_speed = _speed * 2;
if(_speed>4){
_speed = 1;
}
v.playbackRate = _speed;
speedUpBtn.textContent = _speed===1?'快进':'快进x' + _speed;
}
//后退
var backBtn = document.getElementById('back');
var _back_speed = 1;
var _t;
backBtn.addEventListener('click', function(){
_back_speed = _back_speed * 2;
if(_back_speed>4){
v.playbackRate = 1;
_back_speed = 1;
clearInterval(_t);
}else{
v.playbackRate = 0;
clearInterval(_t);
_t = setInterval(function(){
v.currentTime -= _back_speed * 0.1;
},100)
}
backBtn.textContent = _back_speed===1?'快退':'快退x' + _back_speed;
})
/**加载状态
/*
*/
var loadState = document.getElementById('load_state');
v.addEventListener('loadstart', function(){
loadState.textContent = '视频加载中。。。';
})
v.addEventListener('loadeddata', function(){
loadState.textContent = '加载完毕。';
})
v.addEventListener('error', function(){
loadState.textContent = '加载失败。';
})
/**全屏
*
*/
function requestFullScreen(de) {
// var de = document.documentElement;
if (de.requestFullscreen) {
de.requestFullscreen();
} else if (de.mozRequestFullScreen) {
de.mozRequestFullScreen();
} else if (de.webkitRequestFullScreen) {
de.webkitRequestFullScreen();
}
}
var fullscreen = document.getElementById('fullscreen');
fullscreen.addEventListener('click', function(){
requestFullScreen(v);
})