如何使用Layui框架开发一个支持在线预览视频的视频播放器

<div id="videoContainer"></div>

<div id="controlBar">
    <button class="layui-btn layui-btn-primary layui-icon layui-icon-play" id="playButton"></button>
    <button class="layui-btn layui-btn-primary layui-icon layui-icon-pause" id="pauseButton"></button>
    <input type="range" id="progressBar" min="0" max="100" value="0" step="1" />
    <span id="currentTime">00:00</span>/<span id="duration">00:00</span>
</div>

layui.define(['jquery'], function(exports) {
    var $ = layui.jquery;
    
    var VideoPlayer = function(options) {
        this.options = $.extend({}, options);
        this.init();
    };
    
    VideoPlayer.prototype = {
        init: function() {
            this.video = document.createElement('video');
            this.video.src = this.options.src;
            $('#videoContainer').append(this.video);
            
            this.playButton = $('#playButton');
            this.pauseButton = $('#pauseButton');
            this.progressBar = $('#progressBar');
            this.currentTime = $('#currentTime');
            this.duration = $('#duration');
            
            this.bindEvents();
        },
        
        bindEvents: function() {
            var _this = this;
            
            this.playButton.on('click', function() {
                _this.play();
            });
            
            this.pauseButton.on('click', function() {
                _this.pause();
            });
            
            this.progressBar.on('change', function() {
                _this.seek();
            });
            
            this.video.addEventListener('timeupdate', function() {
                _this.updateProgress();
            });
        },
        
        play: function() {
            this.video.play();
        },
        
        pause: function() {
            this.video.pause();
        },
        
        seek: function() {
            var progress = this.progressBar.val();
            var duration = this.video.duration;
            var time = (progress / 100) * duration;
            
            this.video.currentTime = time;
        },
        
        updateProgress: function() {
            var currentTime = this.video.currentTime;
            var duration = this.video.duration;
            var progress = (currentTime / duration) * 100;
            
            this.progressBar.val(progress);
            this.currentTime.text(this.formatTime(currentTime));
            this.duration.text(this.formatTime(duration));
        },
        
        formatTime: function(time) {
            var minutes = Math.floor(time / 60);
            var seconds = Math.floor(time % 60);
            
            return (minutes < 10 ? '0' : '') + minutes + ':' + (seconds < 10 ? '0' : '') + seconds;
        }
    };
    
    exports('VideoPlayer', VideoPlayer);
});

<script src="layui.js"></script>
<script>
layui.use(['jquery', 'VideoPlayer'], function() {
    var $ = layui.jquery;
    var VideoPlayer = layui.VideoPlayer;
    
    var videoPlayer = new VideoPlayer({
        src: 'video.mp4'
    });
});
</script>