H5系列之video自己编写控制栏

ゝ一纸荒年。 2023-08-17 15:24 130阅读 0赞

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：

![1609428-20190902214533697-223300552.png][]

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：

![1609428-20190902222020642-362113893.gif][]

代码如下(有带注释)：

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

![1609428-20190902230407950-2117181363.gif][]

代码如下：

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。

![1609428-20190909154119894-240513198.gif][]

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))

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)

![1609428-20190909170415083-1409718069.gif][]

样式上有些小修改，代码如下：

添加音量条(video.volum = 1 1到0之间。1是默认音量)

![1609428-20190909203851786-495720722.gif][]

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

![1609428-20190909211156192-2085695554.gif][]

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>

最后，代码可能有点乱，有需要的自己整理一下哈。

转载于:https://www.cnblogs.com/yanggeng/p/11449440.html

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