H5系列之video自己编写控制栏

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我是靠谱客的博主甜甜台灯，最近开发中收集的这篇文章主要介绍H5系列之video自己编写控制栏，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

首先来了解一下 video， video呢，是H5 的标签，别人说的 H5播放器，没错就是他了，利用video标签，可以实现视频播放。

但是啊，你会发现，在不同的浏览器上，播放器的控制栏，都是不一样的。例如：

在不同的浏览器上，显示不同的控制栏，这在公司开发，是绝对不允许出现的效果的。所以，我们可以通过js控制video的方法，来进行自定义控制栏。

播放与暂停(video上面的方法，play() 和 pause())

效果图如下：

代码如下(有带注释)：

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
.video_player {
position: relative;
width: 1000px;
height: 500px;
margin: 0 auto;
}
.video_player video {
width: 100%;
height: 100%;
}
.video_player .menu {
position: absolute;
width: 100%;
height: 50px;
background-color: rgba(0, 0, 0, 0.5);
bottom: 0;
left: 0;
}
.video_player .menu .play {
position: absolute;
width: 50px;
height: 30px;
border: 1px solid white;
border-radius: 10px;
color: white;
text-align: center;
line-height: 30px;
top: 50%;
left: 30px;
transform: translateY(-50%);
cursor: pointer;
}
</style>
</head>
<body>
<div class="video_player">
<video src="./video/mda-jgsjz4gs2ipq6d8g.mp4"></video>
<div class="menu">
<div class="play">播放</div>
</div>
</div>
<script>var video = document.getElementsByTagName('video')[0];
var play = document.getElementsByClassName('play')[0];
play.onclick = function () {
if(video.paused){
//判断是否已经播放了，如果还没播放，返回true 

video.play();
//触发方法，播放视频

play.innerHTML = "暂停";
//修改 文字。

}else{
video.pause(); //暂停播放。

play.innerHTML = "播放";
}
}
</script>
</body>
</html>

添加时间( duration(视频总时长) 和 currentTime(当前播放到哪里的时间) )

代码如下：

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
.video_player {
position: relative;
width: 1000px;
height: 500px;
margin: 0 auto;
}
.video_player:hover .menu{ /*这里多了 hover */
display: block;
}
.video_player video {
width: 100%;
height: 100%;
}
.video_player .menu {
position: absolute;
width: 100%;
height: 50px;
background-color: rgba(0, 0, 0, 0.5);
bottom: 0;
left: 0;
display: none;
}
.video_player .menu .play {
position: absolute;
width: 50px;
height: 30px;
border: 1px solid white;
border-radius: 10px;
color: white;
text-align: center;
line-height: 30px;
top: 50%;
left: 30px;
transform: translateY(-50%);
cursor: pointer;
}
.time {
position: absolute;
width: 100px;
height: 30px;
color: white;
text-align: center;
line-height: 30px;
top: 50%;
left: 100px;
transform: translateY(-50%);
}
</style>
</head>
<body>
<div class="video_player">
<video src="./video/mda-jgsjz4gs2ipq6d8g.mp4"></video>
<div class="menu">
<div class="play">播放</div>
<div class="time"></div>
</div>
</div>
<script>
var video = document.getElementsByTagName('video')[0];
var play = document.getElementsByClassName('play')[0];
var time = document.getElementsByClassName('time')[0];
var timer = null;
play.onclick = function () {
if (video.paused) {
//判断是否已经播放了，如果还没播放，返回true 

video.play();
//触发方法，播放视频

play.innerHTML = "暂停";
//修改 文字。

} else {
video.pause(); //暂停播放。

play.innerHTML = "播放";
}
}
video.onloadedmetadata = function () {// 视频加载完成触发,然后我们把时间添加到time标签上去。

time.innerHTML = parseInt(video.currentTime / 60) + ":" + parseInt(video.currentTime % 60) + "/" + parseInt(video.duration / 60) + ":" + parseInt(video.duration % 60);
}
setInterval(function () { //每隔 1秒，刷新一下时间。

time.innerHTML = parseInt(video.currentTime / 60) + ":" + parseInt(video.currentTime % 60) + "/" + parseInt(video.duration / 60) + ":" + parseInt(video.duration % 60);
}, 1000)
</script>
</body>
</html>

添加进度条，与点击跳转。(效果如下) 图片太大了，我删了几帧，所以看起来有点卡卡的。

代码如下：(如果发现你不能跳转，那么请看下浏览器的Response Headers 里面，如果你的http协议里面只有 content-length 和 content-type 没有 content-Range: bytes 那么这个时候不允许点击跳转(不能设置时间跳转))

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
.video_player {
position: relative;
width: 1000px;
height: 500px;
margin: 0 auto;
overflow: hidden;
}
.video_player:hover .menu {
display: block;
}
.video_player video {
width: 100%;
height: 100%;
}
.video_player .menu {
position: absolute;
width: 100%;
height: 50px;
background-color: rgba(0, 0, 0, 0.5);
bottom: 0;
left: 0;
display: none;
}
.video_player .menu .play {
position: absolute;
width: 50px;
height: 30px;
border: 1px solid white;
border-radius: 10px;
color: white;
text-align: center;
line-height: 30px;
top: 50%;
left: 30px;
transform: translateY(-50%);
cursor: pointer;
}
.time {
position: absolute;
width: 100px;
height: 30px;
color: white;
text-align: center;
line-height: 30px;
top: 50%;
left: 100px;
transform: translateY(-50%);
}
/* 样式 */
.progress_bar {
position: absolute;
top: -6px;
left: 0;
width: 100%;
height: 6px;
background-color: #ccc;
transition: height .2s linear, top .2s linear;
}
.progress_bar>div {
width: 0px;
height: 100%;
background-color: rgb(250, 139, 12);
}
.progress_bar>i {
position: absolute;
top: -2px;
left: 0px;
transform: translateX(-50%);
width: 10px;
height: 10px;
background-color: red;
border-radius: 20px;
transition: height .2s linear, top .2s linear, width .2s linear;
}
</style>
</head>
<body>
<div class="video_player">
<video src="./video/mda-jgsjz4gs2ipq6d8g.mp4"></video>
<div class="menu">
<div class="play">播放</div>
<div class="time"></div>
<div class="progress_bar">
<div></div>
<i></i>
</div>
</div>
</div>
<script>
var video = document.getElementsByTagName('video')[0];
var play = document.getElementsByClassName('play')[0];
var time = document.getElementsByClassName('time')[0];
var bar = document.getElementsByClassName('progress_bar')[0];
var Current = bar.getElementsByTagName('div')[0];
var Dot = bar.getElementsByTagName('i')[0];
var timer = null;
play.onclick = function () {
if (video.paused) {
//判断是否已经播放了，如果还没播放，返回true 

video.play();
//触发方法，播放视频

play.innerHTML = "暂停";
//修改 文字。

} else {
video.pause(); //暂停播放。

play.innerHTML = "播放";
}
}
video.onloadedmetadata = function () {// 视频加载完成触发,然后我们把时间添加到time标签上去。

time.innerHTML = parseInt(video.currentTime / 60) + ":" + parseInt(video.currentTime % 60) + "/" + parseInt(video.duration / 60) + ":" + parseInt(video.duration % 60);
}
setInterval(function () { //每隔 1秒，刷新一下时间。

time.innerHTML = parseInt(video.currentTime / 60) + ":" + parseInt(video.currentTime % 60) + "/" + parseInt(video.duration / 60) + ":" + parseInt(video.duration % 60);
Current.style.width = video.currentTime / video.duration * parseInt(window.getComputedStyle(video, null).width) + "px";
Dot.style.left = video.currentTime / video.duration * parseInt(window.getComputedStyle(video, null).width) + "px";
}, 1000)
bar.onmouseover = function () {
//鼠标进入的时候，进度条变大
this.style.top = '-10px';
this.style.height = '10px';
Dot.style.width = '18px';
Dot.style.height = '18px';
Dot.style.top = '-5px';
}
bar.onmouseout = function () {
this.style.top = '-6px';
this.style.height = '6px';
Dot.style.width = '10px';
Dot.style.height = '10px';
Dot.style.top = '-2px';
}
bar.onmousedown = function (e) { // 鼠标点击的时候，跳转

Current.style.width = e.layerX + 'px'; //e.layerX 是点击的时候的位置。

Dot.style.left = e.layerX + 'px';
video.currentTime = e.layerX / parseInt(window.getComputedStyle(video, null).width) * video.duration; //计算出点击的位置在总时间里面占多少。

time.innerHTML = parseInt(video.currentTime / 60) + ":" + parseInt(video.currentTime % 60) + "/" + parseInt(video.duration / 60) + ":" + parseInt(video.duration % 60);
}
</script>
</body>
</html>

里面有一条计算公式，简单来说就是。当前时间 / 总时长 * 数可以算出当前时间，在这个数里面的位置。

添加倍数(video.palybackRate = 1.0)

样式上有些小修改，代码如下：

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
*{
padding: 0;
margin: 0;
}
.video_player {
position: relative;
width: 1000px;
height: 500px;
margin: 0 auto;
overflow: hidden;
}
.video_player video {
width: 100%;
height: 100%;
}
.video_player .menu {
position: absolute;
width: 100%;
height: 50px;
background-color: rgba(0, 0, 0, 0.5);
bottom: 0;
left: 0;
}
.video_player .menu .play {
position: absolute;
width: 50px;
height: 30px;
border: 1px solid white;
border-radius: 10px;
color: white;
text-align: center;
line-height: 30px;
top: 50%;
left: 30px;
transform: translateY(-50%);
cursor: pointer;
}
.video_player .menu .play:hover{
background-color: rgb(219, 74, 74);
}
.time {
position: absolute;
width: 100px;
height: 30px;
color: white;
text-align: center;
line-height: 30px;
top: 50%;
left: 100px;
transform: translateY(-50%);
}
/* 进度条 */
.progress_bar {
position: absolute;
top: -6px;
left: 0;
width: 100%;
height: 6px;
background-color: #ccc;
transition: height .2s linear, top .2s linear;
}
.progress_bar>div {
width: 0px;
height: 100%;
background-color: rgb(250, 139, 12);
}
.progress_bar>i {
position: absolute;
top: -2px;
left: 0px;
transform: translateX(-50%);
width: 10px;
height: 10px;
background-color: red;
border-radius: 20px;
transition: height .2s linear, top .2s linear, width .2s linear;
}
/* 倍数 */
li{
list-style: none;
}
.speed{
position: absolute;
top: 50%;
right: 150px;
transform: translateY(-50%);
color: white;
text-align: center;
line-height: 30px;
}
.speed div{
width: 50px;
height: 30px;
border: 1px solid white;
border-radius: 10px;
cursor: pointer;
}
.speed ul{
position: absolute;
top: -170px;
left: -4px;
padding-bottom: 25px;
display: none;
}
.speed ul li {
padding: 0 10px;
background-color: rgba(0, 0, 0, 0.5);
}
.speed ul li:nth-of-type(1){
border-top-left-radius: 10px;
border-top-right-radius: 10px;
}
.speed ul li:nth-last-of-type(1){
border-bottom-left-radius: 10px;
border-bottom-right-radius: 10px;
}
.speed ul li:hover{
background-color: rgb(219, 74, 74);
}
.speed div:hover{
background-color: rgb(219, 74, 74);
}
</style>
</head>
<body>
<div class="video_player">
<video src="./video/mda-jgsjz4gs2ipq6d8g.mp4"></video>
<div class="menu">
<div class="play">播放</div>
<div class="time"></div>
<div class="progress_bar">
<div></div>
<i></i>
</div>
<div class="speed">
<div>倍数</div>
<ul>
<li>0.5x</li>
<li>1.0x</li>
<li>1.5x</li>
<li>1.25x</li>
<li>2.0x</li>
</ul>
</div>
</div>
</div>
<script>
var video = document.getElementsByTagName('video')[0];
var play = document.getElementsByClassName('play')[0];
var time = document.getElementsByClassName('time')[0];
var bar = document.getElementsByClassName('progress_bar')[0];
var Current = bar.getElementsByTagName('div')[0];
var Dot = bar.getElementsByTagName('i')[0];
var speed = document.getElementsByClassName('speed')[0].getElementsByTagName('div')[0];
var ul = document.getElementsByClassName('speed')[0].getElementsByTagName('ul')[0]
var timer = null;
play.onclick = function () {
if (video.paused) {
//判断是否已经播放了，如果还没播放，返回true 

video.play();
//触发方法，播放视频

play.innerHTML = "暂停";
//修改 文字。

} else {
video.pause(); //暂停播放。

play.innerHTML = "播放";
}
}
video.onloadedmetadata = function () {// 视频加载完成触发,然后我们把时间添加到time标签上去。

time.innerHTML = parseInt(video.currentTime / 60) + ":" + parseInt(video.currentTime % 60) + "/" + parseInt(video.duration / 60) + ":" + parseInt(video.duration % 60);
}
setInterval(function () { //每隔 1秒，刷新一下时间。

time.innerHTML = parseInt(video.currentTime / 60) + ":" + parseInt(video.currentTime % 60) + "/" + parseInt(video.duration / 60) + ":" + parseInt(video.duration % 60);
Current.style.width = video.currentTime / video.duration * parseInt(window.getComputedStyle(video, null).width) + "px";
Dot.style.left = video.currentTime / video.duration * parseInt(window.getComputedStyle(video, null).width) + "px";
}, 1000)
bar.onmouseover = function () {
//鼠标进入的时候，进度条变大
this.style.top = '-10px';
this.style.height = '10px';
Dot.style.width = '18px';
Dot.style.height = '18px';
Dot.style.top = '-5px';
}
bar.onmouseout = function () {
this.style.top = '-6px';
this.style.height = '6px';
Dot.style.width = '10px';
Dot.style.height = '10px';
Dot.style.top = '-2px';
}
bar.onmousedown = function (e) { // 鼠标点击的时候，跳转

Current.style.width = e.layerX + 'px'; //e.layerX 是点击的时候的位置。

Dot.style.left = e.layerX + 'px';
video.currentTime = e.layerX / parseInt(window.getComputedStyle(video, null).width) * video.duration; //计算出点击的位置在总时间里面占多少。

time.innerHTML = parseInt(video.currentTime / 60) + ":" + parseInt(video.currentTime % 60) + "/" + parseInt(video.duration / 60) + ":" + parseInt(video.duration % 60);
}
// 倍数

speed.onclick = function(){
ul.style.display = 'block';
this.style.backgroundColor = 'rgb(219, 74, 74)';
}
speed.onmouseout = function(){
ul.style.display = 'none';
this.style.backgroundColor = '';
}
ul.onmouseover = function(){
ul.style.display = 'block';
speed.style.backgroundColor = 'rgb(219, 74, 74)';
}
ul.onmouseout = function(){
ul.style.display = 'none';
speed.style.backgroundColor = '';
}
var lis = ul.getElementsByTagName('li');
for(var i = 0; i < lis.length; i ++){
lis[i].onclick = function(){
video.playbackRate =
parseFloat( this.innerHTML ); //调节倍数最小不能小于0 

speed.innerHTML = this.innerHTML;
}
}
</script>
</body>
</html>

添加音量条(video.volum = 1 1到0之间。1是默认音量)

代码如下：

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
* {
padding: 0;
margin: 0;
}
.video_player {
position: relative;
width: 1000px;
height: 500px;
margin: 0 auto;
overflow: hidden;
}
.video_player video {
width: 100%;
height: 100%;
}
.video_player .menu {
position: absolute;
width: 100%;
height: 50px;
background-color: rgba(0, 0, 0, 0.5);
bottom: 0;
left: 0;
}
.video_player .menu .play {
position: absolute;
width: 50px;
height: 30px;
border: 1px solid white;
border-radius: 10px;
color: white;
text-align: center;
line-height: 30px;
top: 50%;
left: 30px;
transform: translateY(-50%);
cursor: pointer;
}
.video_player .menu .play:hover {
background-color: rgb(219, 74, 74);
}
.time {
position: absolute;
width: 100px;
height: 30px;
color: white;
text-align: center;
line-height: 30px;
top: 50%;
left: 100px;
transform: translateY(-50%);
}
/* 进度条 */
.progress_bar {
position: absolute;
top: -6px;
left: 0;
width: 100%;
height: 6px;
background-color: #ccc;
transition: height .2s linear, top .2s linear;
}
.progress_bar>div {
width: 0px;
height: 100%;
background-color: rgb(250, 139, 12);
}
.progress_bar>i {
position: absolute;
top: -2px;
left: 0px;
transform: translateX(-50%);
width: 10px;
height: 10px;
background-color: red;
border-radius: 20px;
transition: height .2s linear, top .2s linear, width .2s linear;
}
/* 倍数 */
li {
list-style: none;
}
.speed {
position: absolute;
top: 50%;
right: 150px;
transform: translateY(-50%);
color: white;
text-align: center;
line-height: 30px;
}
.speed div {
width: 50px;
height: 30px;
border: 1px solid white;
border-radius: 10px;
cursor: pointer;
}
.speed ul {
position: absolute;
top: -170px;
left: -4px;
padding-bottom: 25px;
display: none;
}
.speed ul li {
padding: 0 10px;
background-color: rgba(0, 0, 0, 0.5);
}
.speed ul li:nth-of-type(1) {
border-top-left-radius: 10px;
border-top-right-radius: 10px;
}
.speed ul li:nth-last-of-type(1) {
border-bottom-left-radius: 10px;
border-bottom-right-radius: 10px;
}
.speed ul li:hover {
background-color: rgb(219, 74, 74);
}
.speed div:hover {
background-color: rgb(219, 74, 74);
}
/* 音量 */
.volume {
position: absolute;
top: 50%;
right: 80px;
transform: translateY(-50%);
color: white;
text-align: center;
line-height: 30px;
}
.volume > span {
display: block;
width: 50px;
height: 30px;
border: 1px solid white;
border-radius: 10px;
cursor: pointer;
}
.volume > span:hover{
background-color: rgb(219, 74, 74);
}
.volume .Controller {
position: absolute;
top: -170px;
width: 50px;
height: 150px;
border-radius: 10px;
background-color: rgba(0, 0, 0, 0.5);
display: none;
}
.volume .Controller div {
position: absolute;
top: 50%;
left: 50%;
transform: translateY(-50%) translateX(-50%);
width: 5px;
height: 100px;
background-color: #ccc;
}
.volume .Controller div::before {
position: absolute;
content: '';
bottom: 0;
left: 50%;
transform: translateX(-50%);
width: 5px;
height: 100px;
background-color: rgb(250, 139, 12);
;
}
.volume .Controller div::after {
position: absolute;
content: '';
bottom: 100px;
left: 50%;
transform: translateX(-50%) translateY(4px);
width: 8px;
height: 8px;
background-color: white;
;
border-radius: 10px;
}
</style>
</head>
<body>
<div class="video_player">
<video src="./video/mda-jgsjz4gs2ipq6d8g.mp4"></video>
<div class="menu">
<div class="play">播放</div>
<div class="time"></div>
<div class="progress_bar">
<div></div>
<i></i>
</div>
<div class="speed">
<div>倍数</div>
<ul>
<li>0.5x</li>
<li>1.0x</li>
<li>1.5x</li>
<li>1.25x</li>
<li>2.0x</li>
</ul>
</div>
<div class="volume">
<span>音量</span>
<div class="Controller">
<div></div>
<i></i>
</div>
</div>
</div>
</div>
<script>
var video = document.getElementsByTagName('video')[0];
var play = document.getElementsByClassName('play')[0];
var time = document.getElementsByClassName('time')[0];
var bar = document.getElementsByClassName('progress_bar')[0];
var Current = bar.getElementsByTagName('div')[0];
var Dot = bar.getElementsByTagName('i')[0];
var speed = document.getElementsByClassName('speed')[0].getElementsByTagName('div')[0];
var ul = document.getElementsByClassName('speed')[0].getElementsByTagName('ul')[0];
var Controller = document.getElementsByClassName('Controller')[0];
var volume = document.getElementsByClassName('volume')[0].getElementsByTagName('span')[0];
var timer = null;
play.onclick = function () {
if (video.paused) {
//判断是否已经播放了，如果还没播放，返回true 

video.play();
//触发方法，播放视频

play.innerHTML = "暂停";
//修改 文字。

} else {
video.pause(); //暂停播放。

play.innerHTML = "播放";
}
}
video.onloadedmetadata = function () {// 视频加载完成触发,然后我们把时间添加到time标签上去。

time.innerHTML = parseInt(video.currentTime / 60) + ":" + parseInt(video.currentTime % 60) + "/" + parseInt(video.duration / 60) + ":" + parseInt(video.duration % 60);
}
setInterval(function () { //每隔 1秒，刷新一下时间。

time.innerHTML = parseInt(video.currentTime / 60) + ":" + parseInt(video.currentTime % 60) + "/" + parseInt(video.duration / 60) + ":" + parseInt(video.duration % 60);
Current.style.width = video.currentTime / video.duration * parseInt(window.getComputedStyle(video, null).width) + "px";
Dot.style.left = video.currentTime / video.duration * parseInt(window.getComputedStyle(video, null).width) + "px";
}, 1000)
bar.onmouseover = function () {
//鼠标进入的时候，进度条变大
this.style.top = '-10px';
this.style.height = '10px';
Dot.style.width = '18px';
Dot.style.height = '18px';
Dot.style.top = '-5px';
}
bar.onmouseout = function () {
this.style.top = '-6px';
this.style.height = '6px';
Dot.style.width = '10px';
Dot.style.height = '10px';
Dot.style.top = '-2px';
}
bar.onmousedown = function (e) { // 鼠标点击的时候，跳转

Current.style.width = e.layerX + 'px'; //e.layerX 是点击的时候的位置。

Dot.style.left = e.layerX + 'px';
video.currentTime = e.layerX / parseInt(window.getComputedStyle(video, null).width) * video.duration; //计算出点击的位置在总时间里面占多少。

time.innerHTML = parseInt(video.currentTime / 60) + ":" + parseInt(video.currentTime % 60) + "/" + parseInt(video.duration / 60) + ":" + parseInt(video.duration % 60);
}
// 倍数

speed.onclick = function () {
ul.style.display = 'block';
this.style.backgroundColor = 'rgb(219, 74, 74)';
}
speed.onmouseout = function () {
ul.style.display = 'none';
this.style.backgroundColor = '';
}
ul.onmouseover = function () {
ul.style.display = 'block';
speed.style.backgroundColor = 'rgb(219, 74, 74)';
}
ul.onmouseout = function () {
ul.style.display = 'none';
speed.style.backgroundColor = '';
}
var lis = ul.getElementsByTagName('li');
for (var i = 0; i < lis.length; i++) {
lis[i].onclick = function () {
video.playbackRate = parseFloat(this.innerHTML); //调节倍数 0 到正无穷

speed.innerHTML = this.innerHTML;
}
}
// 音量

volume.onclick = function(){
Controller.style.display = 'block';
this.style.backgroundColor = 'rgb(219, 74, 74)';
}
Controller.getElementsByTagName('div')[0].onmousedown = function (e) {
this.onmousemove = function (e) {
if (100 - e.offsetY > 100) {
// 这里为什么要减100 是因为，Y的顶点是0， 但是我们日常是用顶点是100，把数倒了而已。

document.styleSheets[0].addRule('.volume .Controller div::before', 'height: 100px'); // 修改伪元素。 因为我用的是伪元素做音量条

document.styleSheets[0].addRule('.volume .Controller div::after', 'bottom: 100px');
video.volume = 1;
// 修改音量。 0-1 之间， 1是默认音量

} else if (100 - e.offsetY < 0) {
document.styleSheets[0].addRule('.volume .Controller div::before', 'height: 0px');
document.styleSheets[0].addRule('.volume .Controller div::after', 'bottom: 0px');
video.volume = 0;
} else {
document.styleSheets[0].addRule('.volume .Controller div::before', 'height: ' + (100 - e.offsetY) + 'px');
document.styleSheets[0].addRule('.volume .Controller div::after', 'bottom: ' + (100 - e.offsetY) + 'px');
video.volume = (100 - e.offsetY) * 0.01;
}
}
this.onmouseout = function () {
Controller.onmousemove = function (e) {
if (150 - e.offsetY - 25 > 100) {
document.styleSheets[0].addRule('.volume .Controller div::before', 'height: 100px');
document.styleSheets[0].addRule('.volume .Controller div::after', 'bottom: 100px');
video.volume = 1;
} else if (150 - e.offsetY - 25 < 0) {
document.styleSheets[0].addRule('.volume .Controller div::before', 'height: 0px');
document.styleSheets[0].addRule('.volume .Controller div::after', 'bottom: 0px');
video.volume = 0;
} else {
document.styleSheets[0].addRule('.volume .Controller div::before', 'height: ' + (150 - e.offsetY - 25) + 'px');
document.styleSheets[0].addRule('.volume .Controller div::after', 'bottom: ' + (150 - e.offsetY - 25) + 'px');
video.volume = (150 - e.offsetY - 25) * 0.01;
}
Controller.getElementsByTagName('div')[0].onmouseover = function () {
Controller.onmousemove = false;
Controller.getElementsByTagName('div')[0].onmousemove = false;
}
}
}
document.body.onmouseup = function(){
Controller.onmousemove = false;
Controller.getElementsByTagName('div')[0].onmousemove = false;
Controller.getElementsByTagName('div')[0].onmouseout = false;
Controller.style.display = 'none';
volume.style.backgroundColor = '';
}
}
</script>
</body>
</html>

全屏模式

代码如下：

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
* {
padding: 0;
margin: 0;
}
.video_player {
position: relative;
width: 1000px;
height: 500px;
margin: 0 auto;
overflow: hidden;
}
.video_player video {
width: 100%;
height: 100%;
}
.video_player .menu {
position: absolute;
width: 100%;
height: 50px;
background-color: rgba(0, 0, 0, 0.5);
bottom: 0;
left: 0;
}
.video_player .menu .play {
position: absolute;
width: 50px;
height: 30px;
border: 1px solid white;
border-radius: 10px;
color: white;
text-align: center;
line-height: 30px;
top: 50%;
left: 30px;
transform: translateY(-50%);
cursor: pointer;
}
.video_player .menu .play:hover {
background-color: rgb(219, 74, 74);
}
.time {
position: absolute;
width: 100px;
height: 30px;
color: white;
text-align: center;
line-height: 30px;
top: 50%;
left: 100px;
transform: translateY(-50%);
}
/* 进度条 */
.progress_bar {
position: absolute;
top: -6px;
left: 0;
width: 100%;
height: 6px;
background-color: #ccc;
transition: height .2s linear, top .2s linear;
}
.progress_bar>div {
width: 0px;
height: 100%;
background-color: rgb(250, 139, 12);
}
.progress_bar>i {
position: absolute;
top: -2px;
left: 0px;
transform: translateX(-50%);
width: 10px;
height: 10px;
background-color: red;
border-radius: 20px;
transition: height .2s linear, top .2s linear, width .2s linear;
}
/* 倍数 */
li {
list-style: none;
}
.speed {
position: absolute;
top: 50%;
right: 150px;
transform: translateY(-50%);
color: white;
text-align: center;
line-height: 30px;
}
.speed div {
width: 50px;
height: 30px;
border: 1px solid white;
border-radius: 10px;
cursor: pointer;
}
.speed ul {
position: absolute;
top: -170px;
left: -4px;
padding-bottom: 25px;
display: none;
}
.speed ul li {
padding: 0 10px;
background-color: rgba(0, 0, 0, 0.5);
}
.speed ul li:nth-of-type(1) {
border-top-left-radius: 10px;
border-top-right-radius: 10px;
}
.speed ul li:nth-last-of-type(1) {
border-bottom-left-radius: 10px;
border-bottom-right-radius: 10px;
}
.speed ul li:hover {
background-color: rgb(219, 74, 74);
}
.speed div:hover {
background-color: rgb(219, 74, 74);
}
/* 音量 */
.volume {
position: absolute;
top: 50%;
right: 80px;
transform: translateY(-50%);
color: white;
text-align: center;
line-height: 30px;
}
.volume>span {
display: block;
width: 50px;
height: 30px;
border: 1px solid white;
border-radius: 10px;
cursor: pointer;
}
.volume>span:hover {
background-color: rgb(219, 74, 74);
}
.volume .Controller {
position: absolute;
top: -170px;
width: 50px;
height: 150px;
border-radius: 10px;
background-color: rgba(0, 0, 0, 0.5);
display: none;
}
.volume .Controller div {
position: absolute;
top: 50%;
left: 50%;
transform: translateY(-50%) translateX(-50%);
width: 5px;
height: 100px;
background-color: #ccc;
}
.volume .Controller div::before {
position: absolute;
content: '';
bottom: 0;
left: 50%;
transform: translateX(-50%);
width: 5px;
height: 100px;
background-color: rgb(250, 139, 12);
;
}
.volume .Controller div::after {
position: absolute;
content: '';
bottom: 100px;
left: 50%;
transform: translateX(-50%) translateY(4px);
width: 8px;
height: 8px;
background-color: white;
border-radius: 10px;
}
/* 全屏 */
.full {
position: absolute;
width: 50px;
height: 30px;
border: 1px solid white;
border-radius: 10px;
color: white;
text-align: center;
line-height: 30px;
top: 50%;
right: 10px;
transform: translateY(-50%);
cursor: pointer;
}
</style>
</head>
<body>
<div class="video_player">
<video src="./video/mda-jgsjz4gs2ipq6d8g.mp4"></video>
<div class="menu">
<div class="play">播放</div>
<div class="time"></div>
<div class="progress_bar">
<div></div>
<i></i>
</div>
<div class="speed">
<div>倍数</div>
<ul>
<li>0.5x</li>
<li>1.0x</li>
<li>1.5x</li>
<li>1.25x</li>
<li>2.0x</li>
</ul>
</div>
<div class="volume">
<span>音量</span>
<div class="Controller">
<div></div>
<i></i>
</div>
</div>
<div class="full">全屏</div>
</div>
</div>
<script>
var video = document.getElementsByTagName('video')[0];
var play = document.getElementsByClassName('play')[0];
var time = document.getElementsByClassName('time')[0];
var bar = document.getElementsByClassName('progress_bar')[0];
var Current = bar.getElementsByTagName('div')[0];
var Dot = bar.getElementsByTagName('i')[0];
var speed = document.getElementsByClassName('speed')[0].getElementsByTagName('div')[0];
var ul = document.getElementsByClassName('speed')[0].getElementsByTagName('ul')[0];
var Controller = document.getElementsByClassName('Controller')[0];
var volume = document.getElementsByClassName('volume')[0].getElementsByTagName('span')[0];
var full = document.getElementsByClassName('full')[0];
var video_player = document.getElementsByClassName('video_player')[0]
var timer = null;
var lock = true;
play.onclick = function () {
if (video.paused) {
//判断是否已经播放了，如果还没播放，返回true 

video.play();
//触发方法，播放视频

play.innerHTML = "暂停";
//修改 文字。

} else {
video.pause(); //暂停播放。

play.innerHTML = "播放";
}
}
video.onloadedmetadata = function () {// 视频加载完成触发,然后我们把时间添加到time标签上去。

time.innerHTML = parseInt(video.currentTime / 60) + ":" + parseInt(video.currentTime % 60) + "/" + parseInt(video.duration / 60) + ":" + parseInt(video.duration % 60);
}
setInterval(function () { //每隔 1秒，刷新一下时间。

time.innerHTML = parseInt(video.currentTime / 60) + ":" + parseInt(video.currentTime % 60) + "/" + parseInt(video.duration / 60) + ":" + parseInt(video.duration % 60);
Current.style.width = video.currentTime / video.duration * parseInt(window.getComputedStyle(video, null).width) + "px";
Dot.style.left = video.currentTime / video.duration * parseInt(window.getComputedStyle(video, null).width) + "px";
}, 1000)
bar.onmouseover = function () {
//鼠标进入的时候，进度条变大
this.style.top = '-10px';
this.style.height = '10px';
Dot.style.width = '18px';
Dot.style.height = '18px';
Dot.style.top = '-5px';
}
bar.onmouseout = function () {
this.style.top = '-6px';
this.style.height = '6px';
Dot.style.width = '10px';
Dot.style.height = '10px';
Dot.style.top = '-2px';
}
bar.onmousedown = function (e) { // 鼠标点击的时候，跳转

Current.style.width = e.layerX + 'px'; //e.layerX 是点击的时候的位置。

Dot.style.left = e.layerX + 'px';
video.currentTime = e.layerX / parseInt(window.getComputedStyle(video, null).width) * video.duration; //计算出点击的位置在总时间里面占多少。

time.innerHTML = parseInt(video.currentTime / 60) + ":" + parseInt(video.currentTime % 60) + "/" + parseInt(video.duration / 60) + ":" + parseInt(video.duration % 60);
}
// 倍数

speed.onclick = function () {
ul.style.display = 'block';
this.style.backgroundColor = 'rgb(219, 74, 74)';
}
speed.onmouseout = function () {
ul.style.display = 'none';
this.style.backgroundColor = '';
}
ul.onmouseover = function () {
ul.style.display = 'block';
speed.style.backgroundColor = 'rgb(219, 74, 74)';
}
ul.onmouseout = function () {
ul.style.display = 'none';
speed.style.backgroundColor = '';
}
var lis = ul.getElementsByTagName('li');
for (var i = 0; i < lis.length; i++) {
lis[i].onclick = function () {
video.playbackRate = parseFloat(this.innerHTML); //调节倍数 0 到正无穷

speed.innerHTML = this.innerHTML;
}
}
// 音量

volume.onclick = function () {
Controller.style.display = 'block';
this.style.backgroundColor = 'rgb(219, 74, 74)';
}
Controller.getElementsByTagName('div')[0].onmousedown = function (e) {
this.onmousemove = function (e) {
if (100 - e.offsetY > 100) {
// 这里为什么要减100 是因为，Y的顶点是0， 但是我们日常是用顶点是100，把数倒了而已。

document.styleSheets[0].addRule('.volume .Controller div::before', 'height: 100px'); // 修改伪元素。 因为我用的是伪元素做音量条

document.styleSheets[0].addRule('.volume .Controller div::after', 'bottom: 100px');
video.volume = 1;
// 修改音量。 0-1 之间， 1是默认音量

} else if (100 - e.offsetY < 0) {
document.styleSheets[0].addRule('.volume .Controller div::before', 'height: 0px');
document.styleSheets[0].addRule('.volume .Controller div::after', 'bottom: 0px');
video.volume = 0;
} else {
document.styleSheets[0].addRule('.volume .Controller div::before', 'height: ' + (100 - e.offsetY) + 'px');
document.styleSheets[0].addRule('.volume .Controller div::after', 'bottom: ' + (100 - e.offsetY) + 'px');
video.volume = (100 - e.offsetY) * 0.01;
}
}
this.onmouseout = function () {
Controller.onmousemove = function (e) {
if (150 - e.offsetY - 25 > 100) {
document.styleSheets[0].addRule('.volume .Controller div::before', 'height: 100px');
document.styleSheets[0].addRule('.volume .Controller div::after', 'bottom: 100px');
video.volume = 1;
} else if (150 - e.offsetY - 25 < 0) {
document.styleSheets[0].addRule('.volume .Controller div::before', 'height: 0px');
document.styleSheets[0].addRule('.volume .Controller div::after', 'bottom: 0px');
video.volume = 0;
} else {
document.styleSheets[0].addRule('.volume .Controller div::before', 'height: ' + (150 - e.offsetY - 25) + 'px');
document.styleSheets[0].addRule('.volume .Controller div::after', 'bottom: ' + (150 - e.offsetY - 25) + 'px');
video.volume = (150 - e.offsetY - 25) * 0.01;
}
Controller.getElementsByTagName('div')[0].onmouseover = function () {
Controller.onmousemove = false;
Controller.getElementsByTagName('div')[0].onmousemove = false;
}
}
}
document.body.onmouseup = function () {
Controller.onmousemove = false;
Controller.getElementsByTagName('div')[0].onmousemove = false;
Controller.getElementsByTagName('div')[0].onmouseout = false;
Controller.style.display = 'none';
volume.style.backgroundColor = '';
}
}
// 全屏

full.onclick = function () {
if (lock) {
//声明一个变量来当状态。

lock = false;
video_player.style.height = window.screen.height + 'px'; //获取屏幕的宽高

video_player.style.width = window.screen.width + 'px';
document.documentElement.requestFullscreen();
//全屏模式

full.innerHTML = '退出';
} else {
lock = true;
video_player.style.height = 500 + 'px';
video_player.style.width = 1000 + 'px';
document.exitFullscreen();
//退出全屏

full.innerHTML = '全屏';
}
}
</script>
</body>
</html>