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  • html5——多媒体(三)

    自定义进度条

    1、video标签是内联块,可以设置宽高,但是需要用大盒子将其包裹起来进行定位

    2、小盒子设计成进度条样式,并进行定位

    3、进度条样式中的特殊按钮可以用web字体

    4、通过点击实现视频的暂停/播放 改变按钮的样式

    5、获取视频的总时长,放到totalTime中

    6、当视频播放的时候, 动态谁知crrTime的值,并且改变进度条的样式

    7、实现全屏效果

    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
        <link rel="stylesheet" href="css/font-awesome.css">
        <style>
            * {
                padding: 0;
                margin: 0;
            }
    
            figcaption {
                text-align: center;
                font-size: 40px;
                margin: 50px auto;
            }
    
            .player {
                width: 720px;
                height: 360px;
                margin: 100px auto;
                background-color: #000;
                position: relative;
            }
    
            video {
                display: block;
                margin: 0 auto;
                height: 100%;
            }
    
            .control {
                width: 700px;
                height: 40px;
                position: absolute;
                background-color: rgba(63, 141, 56, 0.5);
                bottom: 10px;
                left: 10px;
                border-radius: 10px;
            }
    
            .switch {
                position: absolute;
                width: 40px;
                height: 40px;
                left: 10px;
                top: 0;
                font-size: 20px;
                line-height: 40px;
                text-align: center;
            }
    
            .progress {
                position: absolute;
                width: 460px;
                height: 10px;
                left: 60px;
                top: 15px;
                background-color: rgba(255, 255, 255, 0.4);
                border-radius: 5px;
            }
    
            .curr-progress {
                width: 0px;
                height: 100%;
                background-color: rgba(255, 255, 255, 1);
                border-radius: 10px;
            }
    
            .time {
                position: absolute;
                height: 40px;
                right: 60px;
                top: 0px;
                font: 400 12px/40px "simsun";
                text-align: center;
                color: white;
            }
    
            .extend {
                position: absolute;
                top: 0;
                right: 5px;
                width: 40px;
                height: 40px;
                text-align: center;
                line-height: 40px;
            }
        </style>
    </head>
    <body>
    <figure>
        <figcaption>视频</figcaption>
        <div class="player">
            <video src="video/movie.mp4"></video>
            <div class="control">
                <span class="switch icon-play"></span>
                <div class="progress">
                    <div class="curr-progress"></div>
                </div>
                <div class="time">
                    <span class="curr-time">00:00:00</span>/<span class="total-time">00:00:00</span>
                </div>
                <!-- 全屏-->
                <span class="extend icon-resize-full"></span>
            </div>
        </div>
    </figure>
    <script>
        var player = document.querySelector(".player");
        var video = document.querySelector("video");
        var swt = document.querySelector(".switch");
        var extend = document.querySelector(".extend");
        //通过点击 实现 视频的暂停/播放 改变按钮的样式
        swt.onclick = function () {
            if (video.paused) {
                video.play();
                player.style.backgroundImage = "url()";
                swt.classList.remove("icon-play");
                swt.classList.add("icon-pause");
            }
            else {
                video.pause();
                swt.classList.remove("icon-pause");
                swt.classList.add("icon-play");
            }
        }
        var totalTime = 0;
        var currTime = 0;
        //获取视频的总时长,放到totalTime中
        video.oncanplay = function (ev) {
            totalTime = video.duration;
            var h = Math.floor(totalTime / 3600);
            var m = Math.floor(totalTime % 3600 / 60);
            var s = Math.floor(totalTime % 3600 % 60);
            h = h >= 10 ? h : "0" + h;
            m = m >= 10 ? h : "0" + m;
            s = s >= 10 ? s : "0" + s;
            document.querySelector(".total-time").innerHTML = h + ":" + m + ":" + s;
        }
        video.ontimeupdate = function (ev) {
            currTime = video.currentTime;
            var h = Math.floor(currTime / 3600);
            var m = Math.floor(currTime % 3600 / 60);
            var s = Math.floor(currTime % 3600 % 60);
            h = h >= 10 ? h : "0" + h;
            m = m >= 10 ? h : "0" + m;
            s = s >= 10 ? s : "0" + s;
            document.querySelector(".curr-time").innerHTML = h + ":" + m + ":" + s;
            var xishu = totalTime / currTime;
            document.querySelector(".curr-progress").style.width = (460 / xishu) + "px";
        }
        extend.onclick = function () {
            video.webkitRequestFullScreen();
        }
    </script>
    </body>
    </html>

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  • 原文地址:https://www.cnblogs.com/wuqiuxue/p/8098477.html
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