برمجه صوت على شكل جوال

HTML

<div id="wrapper">
<div id="iphone">
<div id="camera">
<span></span>
<span></span>
</div>
<div id="screen">
<div id="content-wrap">
<div id="background"></div>
<div id="content">
<div id="header">
<span id="menu-btn"><img src="https://emilcarlsson.se/assets/svg/menu.svg" alt="" class="svg"></span>
<span id="options-btn"><img src="https://emilcarlsson.se/assets/svg/more.svg" alt="" class="svg"></span>
</div>
<div class="jcarousel">
<ul id="songs">
<li class="song" data-audio="https://s3-us-west-2.amazonaws.com/s.cdpn.io/308622/Leo%20-%20Trying.mp3" data-color="#f38578">
<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/308622/trying-album-cover.jpg">
<p class="song-title">Trying</p>
<p class="song-artist">Leo</p>
</li>
</ul>
</div>
<audio crossorigin>
<source src="" type="audio/mpeg">
</audio>
<div id="controls">
<span id="previous-btn"><i class="fa fa-step-backward fa-fw" aria-hidden="true"></i></span>
<span id="play-btn"><i class="fa fa-play fa-fw" aria-hidden="true"></i></span>
<span id="next-btn"><i class="fa fa-step-forward fa-fw" aria-hidden="true"></i></span>
</div>
<div id="timeline">
<span id="current-time">--:--</span>
<span id="total-time">--:--</span>
<div class="slider" data-direction="horizontal">
<div class="progress">
<div class="pin" id="progress-pin" data-method="rewind"></div>
</div>
</div>
</div>
<div id="sub-controls">
<i class="fa fa-random" aria-hidden="true"></i>
<i class="fa fa-refresh" aria-hidden="true"></i>
<i class="fa fa-bluetooth-b active" id="bluetooth-btn" aria-hidden="true"></i>
<i class="fa fa-heart-o" id="heart-icon" aria-hidden="true"></i>
</div>
</div>
<div id="overlay"></div>
</div>
<div id="sidemenu">
<ul>
<li>
<i class="fa fa-search fa-fw" aria-hidden="true"></i>
Search
</li>
<li>
<img class="svg menu-icons" src="https://emilcarlsson.se/assets/svg/music-player.svg" alt="">
Playlists
</li>
<li>
<img id="album-icon" class="svg menu-icons" src="https://emilcarlsson.se/assets/svg/album-icon.svg" alt="">
Albums
</li>
<li>
<i class="fa fa-microphone fa-fw" aria-hidden="true"></i>
Artists
</li>
<li>
<i class="fa fa-podcast fa-fw" aria-hidden="true"></i>
Podcasts
</li>
<li>
<i class="fa fa-cog fa-fw" aria-hidden="true"></i>
Settings
</li>
</ul>
</div>
<div id="bluetooth-devices" class="menu">
<span class="close-btn"><span>&times;</span> Close</span>
<h3>Devices nearby</h3>
<ul>
<li class="connected">
<img id="headphones-icon" class="svg menu-icons" src="https://emilcarlsson.se/assets/svg/headphone.svg" alt="">
<p>
Major II Bluetooth
<span>Connected</span>
</p>
</li>
<li>
<img id="headphones-icon" class="svg menu-icons" src="https://emilcarlsson.se/assets/svg/loudspeaker.svg" alt="">
<p>
Sonos One
<span>Connected</span>
</p>
</li>
<li>
<img id="headphones-icon" class="svg menu-icons" src="https://emilcarlsson.se/assets/svg/car.svg" alt="">
<p>
Kia Motors
<span>Connected</span>
</p>
</li>
</ul>
<p class="info-text">
Make sure your bluetooth device is turned on and in range.
</p>
</div>
<div id="song-options" class="menu">
<span class="close-btn"><span>&times;</span> Close</span>
<div id="song-info">
<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/308622/rockstar-album-cover.jpg" alt="">
<div class="artist-wrap">
<p>
<span class="title">rockstar</span>
<span class="artist">Post Malone, 21 Savage</span>
</p>
</div>
</div>
<ul>
<li>
<i class="fa fa-music fa-fw add" aria-hidden="true"></i>
Add to playlist
</li>
<li>
<i class="fa fa-microphone fa-fw" aria-hidden="true"></i>
View Artist
</li>
<li>
<img id="album-icon" class="svg menu-icons" src="https://emilcarlsson.se/assets/svg/compact-disc.svg" alt="">
View Album
</li>
<li>
<i class="fa fa-share-square-o fa-fw" aria-hidden="true"></i>
Share
</li>
</ul>
</div>
<div id="home-screen">
<div class="home-content">
<h2>Music Player App</h2>
<p id="made-by">Made by <a href="https://codepen.io/emilcarlsson">@emilcarlsson</a></p>
<div class="app-icon">
<img class="svg" src="https://emilcarlsson.se/assets/svg/music-note.svg" alt="">
</div>
<p id="icons-by">Icons by <a href="http://fontawesome.io/" title="Font Awesome">Font Awesome</a>, <a href="https://www.flaticon.com/authors/those-icons" title="Those Icons">Those Icons</a>,<br /><a href="https://www.flaticon.com/authors/epiccoders" title="EpicCoders">EpicCoders</a> & <a href="https://www.flaticon.com/authors/smashicons" title="Smashicons">Smashicons</a></p>
</div>
</div>
</div>
<div id="home-btn"></div>
</div>
</div>

CSS(SCSS)

$iphone-color: white;
$primary-color: $alizarin;

body {
color: white;
display: flex;
align-items: center;
justify-content: center;
height: 100vh;
width: 100vw;
background: lighten($alizarin, 15%);
font-family: $font;
@include transition(background 0.25s ease);
}

.svg {
path {
fill: white;
}
}

h3 {
cursor: default;
font-weight: 600;
font-size: 12px;
letter-spacing: 1px;
margin: 0 0 15px;
text-transform: uppercase;
}

p {
cursor: default;

&.info-text {
color: darken(white, 30%);
font-size: 10px;
}
}

.fa.add {
position: relative;

&::after {
background: #444444;
border-radius: 100px;
content: '\f055';
font-size: 10px;
left: 2px;
position: absolute;
top: -1px;
width: 10px;
height: 11px;
}
}

div#iphone {
background: $iphone-color;
border: 4px solid darken($iphone-color, 7.5%);
border-radius: 30px;
max-width: 257px;
padding: 10px;
@include box-shadow(0px 10px 25px rgba(51, 51, 51, 0.3));

div#camera {
cursor: default;
margin: 5px auto 20px;
width: 100%;
text-align: center;
@include user-select(none);

span {
background: darken($iphone-color, 7.5%);
display: inline-block;

&:nth-child(1) {
$camera-size: 7px;
border-radius: $camera-size;
height: $camera-size;
margin-right: 7px;
position: relative;
top: 1px;
width: $camera-size;
}
&:nth-child(2) {
border-radius: 5px;
height: 5px;
width: 35px;
}
}
}

div#screen {
background: darken($iphone-color, 60%);
border: 2px solid darken($iphone-color, 5%);
border-radius: 4px;
height: 400px;
overflow: hidden;
position: relative;
width: 225px;
z-index: 1;

&::after {
background: darken($iphone-color, 50%);
content: '';
display: block;
height: 130%;
left: 60%;
opacity: 0.15;
position: absolute;
pointer-events: none;
top: -25%;
width: 100%;
@include transform(rotate(-20deg));
}
}

div#home-btn {
$button-size: 35px;
border: 3px solid darken($iphone-color, 7.5%);
border-radius: $button-size;
cursor: pointer;
height: $button-size;
margin: 10px auto 5px;
width: $button-size;
}
}

div#content-wrap {
background: #333;
height: 100%;
overflow: hidden;
position: relative;
z-index: 5;
@include transition(transform 0.25s ease);

&.minimized {
@include transform(scale(0));
}

&.inactive {
@include transform(scale(0.85) translate(0, 60%));

div#overlay {
display: block;
}
}
}

div#overlay {
cursor: pointer;
display: none;
height: 100%;
left: 0;
position: absolute;
top: 0;
width: 100%;
z-index: 3;
}

div#content {
padding: 15px;
position: relative;
z-index: 2;
}

div#background {
background-size: cover;
background-position: center;
display: block;
height: 100%;
left: 0;
position: absolute;
top: 0;
width: 100%;
z-index: 1;
@include filter(blur, 10px);
@include transition(background-image 0.25s ease);

&::before {
background: #333;
content: '';
display: block;
height: 100%;
opacity: 0.5;
position: absolute;
width: 100%;
}

&::after {
content: '';
display: block;
height: 100%;
position: absolute;
width: 100%;
@include linear-gradient(to bottom, rgba(0, 0, 0, 0) 50%, rgba(50, 50, 50, 1) 100%);
}
}

div#header {
color: white;
@extend .clearfix;

span {
cursor: pointer;
font-size: 20px;

.svg {
height: 16px;
width: 16px;
}

&#menu-btn {
float: left;
}
&#options-btn {
float: right;
}
}
}

div.jcarousel {
left: -15px;
width: calc(100% + 30px);
position: relative;
overflow: hidden;

ul#songs {
width: 20000em;
position: relative;

li.song {
float: left;
margin: 10px 15px;
text-align: center;
width: calc(225px - 30px);

img {
width: 92.5%;
@include box-shadow(0px 5px 25px rgba(50, 50, 50, 0.5));
}

p {
color: white;
text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.15);

&.song-title {
font-size: 16px;
font-weight: 600;
margin: 10px 0 5px;
}
&.song-artist {
color: darken(white, 30%);
font-size: 12px;
margin: 0;
}
}
}
}
}

div#controls {
color: white;
display: table;
margin: 10px auto 25px;
text-align: center;
width: 75%;

span {
display: table-cell;
font-size: 20px;
vertical-align: middle;

&#play-btn {
font-size: 34px;
}

i {
cursor: pointer;
}
}
}

div#sub-controls {
color: darken(white, 40%);
cursor: default;
font-size: 14px;
margin: 15px 0 0;
text-align: center;
@include user-select(none);

.svg {
height: 14px;
position: relative;
top: 2px;
width: 14px;

path {
fill: darken(white, 40%);
}
}

i, .svg {
cursor: pointer;
margin: 0 15px;

&.active {
color: $primary-color;
}
}
}

div#timeline {
position: relative;
margin: 0 auto;
width: 92.5%;

span {
color: darken(white, 30%);
font-size: 7px;
position: absolute;
top: -10px;

&#current-time {
left: 0;
}
&#total-time {
right: 0;
}
}

div.slider {
background-color: darken(white, 50%);
border-radius: 2px;
cursor: pointer;
height: 2px;
position: relative;
width: 100%;

div.progress {
background-color: $primary-color;
height: 100%;
pointer-events: none;
position: absolute;
width: 0;

div.pin {
background-color: white;
border-radius: 8px;
height: 8px;
position: absolute;
pointer-events: all;
right: -5px;
top: -3px;
width: 8px;
@include box-shadow(0px 1px 1px 0px rgba(0,0,0,0.32));
@include transition(transform 0.25s ease);

&:active {
@include transform(scale(1.5));
}
}
}
}
}

div#sidemenu {
background: #444;
box-sizing: border-box;
height: 100%;
left: 0;
padding: 20px 10px;
position: absolute;
top: 0;
width: 100%;
z-index: 1;

&.active {
ul {
@include transform(scale(1));
}
}

ul {
color: white;
font-size: 18px;
@include transition(transform 0.25s ease);
@include transform(scale(0.8));

li {
cursor: pointer;
font-weight: 300;
padding: 8px 5px;

&:nth-child(1) {
margin-top: -8px;
}

&:hover {
background: lighten(#444, 5%);
border-radius: 5px;

.svg, i {
opacity: 1;
}
}

.svg {
display: inline-block;
height: 16px;
padding: 0 0.2em;
position: relative;
top: 2px;
width: 16px;
}

.svg, i {
margin-right: 5px;
opacity: 0.75;
@include transition(opacity 0.25s ease);
}
}
}
}

div#song-options {
div#song-info {
margin: 0 0 20px;
position: relative;
@extend .clearfix;

img {
float: left;
width: 50px;
@include box-shadow(0 2px 5px rgba(50, 50, 50, 0.2));
}

div.artist-wrap {
box-sizing: border-box;
float: right;
padding: 0 0 0 8px;
width: calc(100% - 50px);

p {
bottom: 4px;
font-size: 16px;
position: absolute;

span {
display: block;

&.artist {
font-size: 12px;
font-weight: 300;
margin: 4px 0 0;
}
}
}
}
}

ul {
font-size: 16px;
}
}

div#bluetooth-devices {
ul {
margin: 5px 0 15px;

li {
&.connected {
border: 1px solid rgba(255, 255, 255, 0.2);
font-size: 14px;

span {
display: block;
}

i {
color: $primary-color;
}

.svg path {
fill: $primary-color !important;
}

.svg, i {
opacity: 1;
position: relative;
top: -5px;
}
}

p {
display: inline-block;

span {
display: none;
font-size: 10px;
margin: 2px 0 0;
opacity: 0.75;
}
}
}
}
}

div.menu {
background: #444;
box-sizing: border-box;
display: block;
height: 100%;
padding: 0 20px;
position: absolute;
top: 100%;
width: 100%;
z-index: 10;
@include transition(top 0.25s ease);

&.active {
top: 0;
}

span.close-btn {
color: darken(white, 30%);
cursor: pointer;
display: block;
font-size: 14px;
margin: 5px auto 15px;
padding: 0 8px 4px;
text-align: center;
width: 50px;
@include transition(color 0.25s ease);

&:hover {
color: darken(white, 10%);
}

span {
font-size: 1.6em;
position: relative;
top: 3px;
}
}

li {
border-radius: 5px;
cursor: pointer;
font-weight: 300;
margin-bottom: 4px;
padding: 8px 5px;

&:nth-child(1) {
margin-top: -8px;
}

&:hover {
background: lighten(#444, 5%);

.svg, i {
opacity: 1;
}
}

.svg {
display: inline-block;
height: 14px;
padding: 0 0.2em;
position: relative;
top: 2px;
width: 14px;
}

.svg, i {
margin-right: 5px;
opacity: 0.75;
@include transition(opacity 0.25s ease);
}

i {
position: relative;
top: 1px;
}
}
}

div#home-screen {
@include linear-gradient(to bottom, lighten($wet-asphalt, 15%), lighten($wet-asphalt, 5%));
height: 100%;
left: 0;
position: absolute;
top: 0;
width: 100%;
visibility: hidden;
z-index: 2;
@extend .flex-center;

&.active {
visibility: visible;
}

div.home-content {
margin: 15px;
padding-bottom: 80px;
text-align: center;

h2 {
font-size: 22px;
font-weight: 600;
}

p {
font-size: 13px;
line-height: 1.5;
margin: 5px 0;

&#made-by {

a {
color: white;
}
}

&#icons-by {
color: lighten($wet-asphalt, 30%);
bottom: 15px;
font-size: 11px;
left: 0;
position: absolute;
text-align: center;
width: 100%;
}

a {
color: lighten($wet-asphalt, 40%);
border-bottom: 1px solid lighten($wet-asphalt, 30%);
text-decoration: none;
padding: 0 1px;
@include transition(border-color 0.25s ease, color 0.25s ease);

&:hover {
color: lighten($wet-asphalt, 50%);
border-color: lighten($wet-asphalt, 50%);
}
}
}

div.app-icon {
cursor: pointer;
border-radius: 10px;
height: 40px;
margin: 30px auto 0;
position: relative;
width: 40px;
@extend .flex-center;
@include linear-gradient(to bottom, $primary-color, darken($primary-color, 10%));

&:hover {
@include linear-gradient(to bottom, darken($primary-color, 5%), darken($primary-color, 15%));
}

&::after {
content: 'Music Player';
font-size: 10px;
position: absolute;
top: 45px;
white-space: nowrap;
}

.svg {
height: 60%;
width: 60%;
}
}
}
}

Javascript

/*
* Icons by:
* Font Awesome – http://fontawesome.io/
* Those Icons – https://www.flaticon.com/authors/those-icons
* EpicCoders – https://www.flaticon.com/authors/epiccoders
* Smashicons – https://www.flaticon.com/authors/smashicons
*/

$(document).ready(function () {
var songs = [
{
title: "rockstar",
artist: "Post Malone, 21 Savage",
cover: "https://s3-us-west-2.amazonaws.com/s.cdpn.io/308622/rockstar-album-cover.jpg",
audioFile: "https://s3-us-west-2.amazonaws.com/s.cdpn.io/308622/Post%20Malone%20-%20rockstar%20ft.%2021%20Savage%20(1).mp3",
color: "#c3af50"
},
{
title: "Let You Down",
artist: "NF",
cover: "https://s3-us-west-2.amazonaws.com/s.cdpn.io/308622/perception-album-cover.png",
audioFile: "https://s3-us-west-2.amazonaws.com/s.cdpn.io/308622/NF%20-%20Let%20You%20Down.mp3",
color: "#25323b"
},
{
title: "Silence",
artist: "Marshmello, Khalid",
cover: "https://s3-us-west-2.amazonaws.com/s.cdpn.io/308622/silence-album-cover.jpg",
audioFile: "https://s3-us-west-2.amazonaws.com/s.cdpn.io/308622/Marshmello%20-%20Silence%20ft.%20Khalid.mp3",
color: "#c1c1c1"
},
{
title: "I Fall Apart",
artist: "Post Malone",
cover: "https://s3-us-west-2.amazonaws.com/s.cdpn.io/308622/stoney-cover-album.jpg",
audioFile: "https://s3-us-west-2.amazonaws.com/s.cdpn.io/308622/Post%20Malone%20-%20I%20Fall%20Apart.mp3",
color: "#cd4829"
},
{
title: "Fireproof",
artist: "VAX, Teddy Sky",
cover: "https://s3-us-west-2.amazonaws.com/s.cdpn.io/308622/fireproof-album-cover.jpeg",
audioFile: "https://s3-us-west-2.amazonaws.com/s.cdpn.io/308622/VAX%20-%20Fireproof%20Feat%20Teddy%20Sky.mp3",
color: "#5d0126"
}
];

for (let song of songs) {
$("#songs").append('<li class="song" data-audio="' + song.audioFile + '" data-color="'+ song.color +'">' +
'<img src="' + song.cover + '">' +
'<p class="song-title">' + song.title + '</p>' +
'<p class="song-artist">' + song.artist + '</p>' +
'</li>');
}

$('.jcarousel').jcarousel({
wrap: 'circular'
});
});

/*
* Replace all SVG images with inline SVG
*/
jQuery('img[src$=".svg"]').each(function(){
var $img = jQuery(this);
var imgID = $img.attr('id');
var imgClass = $img.attr('class');
var imgURL = $img.attr('src');

jQuery.get(imgURL, function(data) {
// Get the SVG tag, ignore the rest
var $svg = jQuery(data).find('svg');

// Add replaced image's ID to the new SVG
if(typeof imgID !== 'undefined') {
$svg = $svg.attr('id', imgID);
}
// Add replaced image's classes to the new SVG
if(typeof imgClass !== 'undefined') {
$svg = $svg.attr('class', imgClass+' replaced-svg');
}

// Remove any invalid XML tags as per http://validator.w3.org
$svg = $svg.removeAttr('xmlns:a');

// Replace image with new SVG
$img.replaceWith($svg);

}, 'xml');

});

// Current slide
$('.jcarousel').on('jcarousel:visiblein', 'li', function(event, carousel) {
let cover = $(this).find("img").attr("src");
let songTitle = $(this).find("p.song-title").html();
let songArtist = $(this).find("p.song-artist").html();
let audioSrc = $(this).attr("data-audio");
let backgroundColor = $(this).attr("data-color");
$("body").css('background', backgroundColor)
$("#background").css('background-image', 'url('+cover+')');
$("audio").find("source").attr("src", ""+audioSrc+"");
player.load();
player.currentTime = 0;
$("#song-info").find("img").attr("src", cover);
$("#song-info .artist-wrap p").find("span.title").html(songTitle);
$("#song-info .artist-wrap p").find("span.artist").html(songArtist);
});

// Previous slide
$('#previous-btn').click(function() {
$('.jcarousel').jcarousel('scroll', '-=1');
$('#play-btn i').removeClass('fa-pause');
player.pause();
});

// Next slide
$('#next-btn').click(function() {
if ($(".fa-random").hasClass('active')) {
let songs = $("#songs li").length - 1;
let randomSong = Math.floor(Math.random() * songs) + 1;
$('.jcarousel').jcarousel('scroll', '+=' + randomSong);
} else {
$('.jcarousel').jcarousel('scroll', '+=1');
}
$('#play-btn i').removeClass('fa-pause');
player.pause();
});

// Play Icon Switcher
$('#play-btn').click(function() {
$(this).find('i').toggleClass('fa-pause');
});

// Menu
$("#menu-btn").click(function() {
$("#content-wrap").addClass('inactive');
$("#sidemenu").addClass('active');
});

// Home Button
$("#home-btn").click(function() {
$("#home-screen").addClass('active');
$(".menu").removeClass('active');
$("#content-wrap").addClass('minimized');
});

// App
$(".app-icon").click(function() {
$("#content-wrap").removeClass('minimized');
setTimeout(function(){ $("#home-screen").removeClass('active'); }, 300);
});

// Overlay
$("#overlay").click(function () {
$("#content-wrap").removeClass('inactive');
$("#sidemenu").removeClass('active');
});

// Options
$("#options-btn").click(function() {
$("#song-options").addClass('active');
});

// Bluetooth
$("#bluetooth-btn").click(function() {
$("#bluetooth-devices").addClass('active');
});

// Bluetooth Menu
$("#bluetooth-devices ul li").click(function() {
$(this).toggleClass('connected');
$(this).siblings().removeClass('connected');

if ($("#bluetooth-devices ul li").hasClass('connected')) {
$("#sub-controls i.fa-bluetooth-b").addClass('active');
} else {
$("#sub-controls i.fa-bluetooth-b").removeClass('active');
}
});

// Close Menu
$(".close-btn").click(function() {
$(".menu").removeClass('active');
});

$('#sub-controls i').click(function () {
if(!$(this).hasClass('fa-bluetooth-b')) {
$(this).toggleClass('active');
}

if ($("#heart-icon").hasClass('active')) {
$("#heart-icon").removeClass('fa-heart-o');
$("#heart-icon").addClass('fa-heart');
} else {
$("#heart-icon").removeClass('fa-heart');
$("#heart-icon").addClass('fa-heart-o');
}
});

/*
* Music Player
* By Greg Hovanesyan
* https://codepen.io/gregh/pen/NdVvbm
*/

var audioPlayer = document.querySelector('#content');
var playpauseBtn = audioPlayer.querySelector('#play-btn');
var progress = audioPlayer.querySelector('.progress');
var sliders = audioPlayer.querySelectorAll('.slider');
var player = audioPlayer.querySelector('audio');
var currentTime = audioPlayer.querySelector('#current-time');
var totalTime = audioPlayer.querySelector('#total-time');

var draggableClasses = ['pin'];
var currentlyDragged = null;

window.addEventListener('mousedown', function(event) {

if(!isDraggable(event.target)) return false;

currentlyDragged = event.target;
let handleMethod = currentlyDragged.dataset.method;

this.addEventListener('mousemove', window[handleMethod], false);

window.addEventListener('mouseup', () => {
currentlyDragged = false;
window.removeEventListener('mousemove', window[handleMethod], false);
}, false);
});

playpauseBtn.addEventListener('click', togglePlay);
player.addEventListener('timeupdate', updateProgress);
player.addEventListener('loadedmetadata', () => {
totalTime.textContent = formatTime(player.duration);
});
player.addEventListener('ended', function(){
player.currentTime = 0;

if ($(".fa-refresh").hasClass('active')) {
togglePlay();
} else {
if ($(".fa-random").hasClass('active')) {
let songs = $("#songs li").length - 1;
let randomSong = Math.floor(Math.random() * songs) + 1;
$('.jcarousel').jcarousel('scroll', '+=' + randomSong);
} else {
$('.jcarousel').jcarousel('scroll', '+=1');
}
togglePlay();
}
});

sliders.forEach(slider => {
let pin = slider.querySelector('.pin');
slider.addEventListener('click', window[pin.dataset.method]);
});

function isDraggable(el) {
let canDrag = false;
let classes = Array.from(el.classList);
draggableClasses.forEach(draggable => {
if(classes.indexOf(draggable) !== -1)
canDrag = true;
})
return canDrag;
}

function inRange(event) {
let rangeBox = getRangeBox(event);
let direction = rangeBox.dataset.direction;
let screenOffset = document.querySelector("#screen").offsetLeft + 26;
var min = screenOffset - rangeBox.offsetLeft;
var max = min + rangeBox.offsetWidth;
if(event.clientX < min || event.clientX > max) { return false };
return true;
}

function updateProgress() {
var current = player.currentTime;
var percent = (current / player.duration) * 100;
progress.style.width = percent + '%';

currentTime.textContent = formatTime(current);
}

function getRangeBox(event) {
let rangeBox = event.target;
let el = currentlyDragged;
if(event.type == 'click' && isDraggable(event.target)) {
rangeBox = event.target.parentElement.parentElement;
}
if(event.type == 'mousemove') {
rangeBox = el.parentElement.parentElement;
}
return rangeBox;
}

function getCoefficient(event) {
let slider = getRangeBox(event);
let screenOffset = document.querySelector("#screen").offsetLeft + 26;
let K = 0;
let offsetX = event.clientX - screenOffset;
let width = slider.clientWidth;
K = offsetX / width;
return K;
}

function rewind(event) {
if(inRange(event)) {
player.currentTime = player.duration * getCoefficient(event);
}
}

function formatTime(time) {
var min = Math.floor(time / 60);
var sec = Math.floor(time % 60);
return min + ':' + ((sec<10) ? ('0' + sec) : sec);
}

function togglePlay() {
player.volume = 0.5;

if(player.paused) {
player.play();
} else {
player.pause();
}
}

وسلامتكم