This code implements a pull-down menu in JavaScript for mobile-friendly websites. It allows users to navigate between different sections on swipe-down/pull-down events.
The menu is specifically designed for mobile devices, resembling a phone interface. It allows users to navigate between different sections smoothly and provides an interactive and visually appealing user experience.
How to Create Pull Down Menu in JavaScript
1. Create the HTML structure with a <div> element for the phone, screen, header, menu, and other elements. Here’s an example:
<div id="phone">
<div id="screen">
<div id="header">
<ul id="menu">
<li>Latest Movies</uli>
<li>Best Movies</uli>
<li>Archive</uli>
<li>About</li>
<li class="reload"><i class="loader-icon"></i></li>
</ul>
<div class="pullmenu-icon"></div>
</div>
<div id="loader"><i class="loader-icon anim"></i></div>
<div class="pages">
<div class="page back2" id="about">
<div>
<span>Pullmenu</span><br/>Menu interaction concept<br/>by @_fbrz
</div>
</div>
<div class="page" id="latest">
<div class="box hero back11">
<span>Interstellar</span>
</div>
<div class="box back2">
<span>Dracula untold</span>
</div>
<div class="box back9 right tall">
<span>The guardians of the galaxy</span>
</div>
<div class="box back4">
<span>The judge</span>
</div>
<div class="box back3">
<span>Frank</span>
</div>
<div class="box back6 right">
<span>Big Hero 6</span>
</div>
<div class="box back8 wide">
<span>Hunger Games</span>
</div>
</div>
<div class="page" id="best">
<div class="box wide back11">
<span>Boyhood</span>
</div>
<div class="box wide back2">
<span>The lego movie</span>
</div>
<div class="box wide back9">
<span>The Grand Budapest Hotel</span>
</div>
<div class="box wide back4">
<span>Dawn Of The Planet Of The Apes</span>
</div>
<div class="box wide back3">
<span>Nightcrawler</span>
</div>
<div class="box wide back6">
<span>Big Hero 6</span>
</div>
<div class="box wide back8">
<span>Hunger Games</span>
</div>
</div>
<div class="page" id="archive">
<div class="box small back11">
<span>The Wizard of Oz</span>
</div>
<div class="box small back2">
<span>Citizen Kane</span>
</div>
<div class="box small back9">
<span>The Godfather</span>
</div>
<div class="box small back4">
<span>The Third Man</span>
</div>
<div class="box small back3">
<span>A Hard Day's Night</span>
</div>
<div class="box small back6">
<span>Modern Times</span>
</div>
<div class="box small back8">
<span>All About Eve</span>
</div>
<div class="box small back7">
<span>Metropolis</span>
</div>
<div class="box small back5">
<span>Singin' in the Rain</span>
</div>
<div class="box small back10">
<span>King Kong</span>
</div>
<div class="box small back1">
<span>Sunset Boulevard</span>
</div>
</div>
</div>
</div>
<div id="home"></div>
<div id="speaker"></div>
</div>
2. Add CSS styles to the elements to define the appearance of pull down menu.
@import url(https://fonts.googleapis.com/css?family=Lato);
body {
font-family: Lato;
-webkit-font-smoothing: antialiased;
margin: 0;
background: #f5f5f5;
}
/* phone */
#phone {
width: 310px;
height: 640px;
border: 2px solid #ccc;
border-radius: 30px;
position: absolute;
left: 50%;
top: 50px;
margin: 0 -285px;
background: #fff;
}
#screen {
width: 290px;
height: 520px;
border: 1px solid #ccc;
position: absolute;
left: 50%;
top: 50%;
margin: -260px -145px;
box-sizing: border-box;
overflow: hidden;
}
#home {
width: 36px;
height: 36px;
border: 1px solid #ccc;
position: absolute;
bottom: 10px;
left: 50%;
margin: 0 -18px;
border-radius: 50%;
}
#speaker {
width: 50px;
height: 6px;
border: 1px solid #ccc;
border-radius: 6px;
position: absolute;
left: 50%;
top: 25px;
margin: 0 -25px;
}
#header {
height: 46px;
background: #353541;
position: relative;
z-index: 30;
cursor: -webkit-grab;
cursor: grab;
}
#header:active {
cursor: -webkit-grabbing;
cursor: grabbing;
}
.pullmenu-icon {
width: 16px;
height: 2px;
background: #FFF;
position: absolute;
right: 20px;
bottom: 27px;
transition: opacity 0.2s ease-in-out;
}
.pullmenu-icon:after {
content: "";
width: 8px;
height: 2px;
background: #FFF;
position: absolute;
top: 10px;
left: 4px;
}
.pullmenu-icon:before {
content: "";
width: 16px;
height: 2px;
background: #FFF;
position: absolute;
top: 5px;
left: 0;
}
.pullmenu-icon.hide {
opacity: 0;
}
#title {
height: 46px;
}
#menu {
list-style: none;
margin: 0;
padding: 0;
width: 3000px;
position: absolute;
top: 50%;
margin: -15px 0px;
transition: transform 0.2s ease-out;
}
#menu li {
color: #FFF;
font-size: 15px;
font-weight: 600;
display: inline-block;
padding: 0 20px;
opacity: 0;
transition: opacity 0.2s ease-out;
}
#menu li.show {
opacity: 1 !important;
}
#menu li.reload {
margin-left: 200px;
position: relative;
top: 6px;
transition: opacity 0s ease-out;
}
#menu.show li {
opacity: 0.2;
}
#menu.notrans {
transition: none;
}
.loader-icon {
box-sizing: border-box;
width: 20px;
height: 20px;
border-radius: 10px;
border: 2px solid #fff;
border-bottom-color: transparent;
display: block;
}
.loader-icon.anim {
-webkit-animation: loader 1s infinite linear;
animation: loader 1s infinite linear;
}
#loader .loader-icon {
border: 2px solid #353541;
border-bottom-color: transparent;
position: absolute;
top: 50%;
left: 50%;
z-index: 10;
margin: -8px;
}
@-webkit-keyframes loader {
0% {
transform: rotate(0);
}
100% {
transform: rotate(359deg);
}
}
@keyframes loader {
0% {
transform: rotate(0);
}
100% {
transform: rotate(359deg);
}
}
.pages {
transform: translate3d(0, 0, 0);
transition: opacity 0.2s linear;
z-index: 29;
position: absolute;
width: 318px;
height: 100%;
}
.pages.hide {
transition: opacity 0.1s linear;
opacity: 0;
}
.page {
overflow-y: auto;
overflow-x: hidden;
height: 472px;
display: none;
padding-right: 15px;
}
#latest {
display: block;
}
.back1 {
background: -webkit-linear-gradient(-50deg, #ae93bb, #a63d71);
}
.back2 {
background: -webkit-linear-gradient(-50deg, #97c794, #12656c);
}
.back3 {
background: -webkit-linear-gradient(-50deg, #808fb6, #373f52);
}
.back4 {
background: -webkit-linear-gradient(-50deg, #caa285, #c0bf3c);
}
.back5 {
background: -webkit-linear-gradient(-50deg, #93b0bb, #3d7aa6);
}
.back6 {
background: -webkit-linear-gradient(-50deg, #bba793, #a65d3d);
}
.back7 {
background: -webkit-linear-gradient(-50deg, #9d93bb, #6659a1);
}
.back8 {
background: -webkit-linear-gradient(-50deg, #afabb2, #695f64);
}
.back9 {
background: -webkit-linear-gradient(-50deg, #a589b0, #d35c5c);
}
.back10 {
background: -webkit-linear-gradient(-50deg, #93bb95, #5a774e);
}
.back11 {
background: -webkit-linear-gradient(-50deg, #bde5d0, #123c6c);
}
.box {
height: 116px;
position: relative;
width: 50%;
float: left;
}
.box.right {
float: right;
}
.box.tall {
height: 232px;
}
.box.wide {
width: 100%;
}
.box.small {
width: 100%;
height: 70px;
}
.box.hero {
height: 240px;
width: 100%;
}
.box.hero span {
font-size: 23px;
}
.box span {
position: absolute;
color: #fff;
font-size: 15px;
bottom: 0;
left: 0;
text-transform: uppercase;
padding: 25px 25px;
font-weight: 600;
}
#about {
color: #fff;
text-transform: uppercase;
text-align: center;
font-weight: 600;
font-size: 11px;
}
#about div {
position: relative;
left: -6px;
top: 50%;
margin-top: -30px;
}
#about span {
font-size: 20px;
}
#text {
position: absolute;
height: 640px;
left: 50%;
top: 50px;
margin: 0px 75px;
color: #353541;
}
#text h1 {
margin: 0;
font-size: 70px;
line-height: 60px;
text-transform: uppercase;
}
#text h2 {
font-size: 23px;
margin: 0;
text-transform: uppercase;
margin-top: 10px;
}
#text h3 {
opacity: 0.3;
font-style: italic;
font-weight: 400;
font-size: 16px;
margin-top: 30px;
}
#pullmenu-icon {
width: 40px;
height: 5px;
background: #353541;
margin-top: 69px;
position: relative;
margin-bottom: 40px;
left: 6px;
}
#pullmenu-icon:before {
width: 40px;
height: 5px;
background: #353541;
content: "";
position: absolute;
top: 10px;
}
#pullmenu-icon:after {
width: 22px;
height: 5px;
background: #353541;
content: "";
position: absolute;
top: 20px;
left: 9px;
}
#coolors {
position: fixed;
bottom: 20px;
right: 30px;
text-decoration: none;
color: #353541;
font-size: 11px;
text-transform: uppercase;
}
3. Include the jQuery library in your HTML document by adding the following script tag before the closing </body> tag:
<script src='//cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js'></script>
4. Finally, add the following JavaScript code to handle the pull-down menu functionality.
//sorry for the mess
var current_index = 0,
index,
menu,
menu_items_count,
mouse_down,
mouse_start_y,
pull_step,
total_pull = 80,
release = 40,
pull_release = total_pull + release;
$(document).on('selectstart', false);
$(document).ready(function(){
$("#menu li").each(function(i,e){
$(this).attr("data-index",i)
});
//
menu = $("#menu").html();
menu_items_count = $("#menu li").length;
pull_step = total_pull/(menu_items_count-1);
//
$("#menu").css("transform","translate3d("+getItemX(0)+"px,0,0)");
$("#menu li").removeClass("show");
$("#menu li").eq(0).addClass("show");
});
$("#header").mousedown(function(e){
//
mouse_down = true;
mouse_start_y = e.pageY;
//
if(index == menu_items_count-1) {
index = 0;
} else {
var $item = $("#menu li").eq(index);
$("#menu").html(menu);
$("#menu li").eq($item.attr("data-index")).remove();
$item.prependTo($("#menu"));
$("#menu li").eq(0).addClass("show");
$("#menu").addClass("notrans");
$("#menu").css("transform","translate3d("+getItemX(0)+"px,0,0)");
}
});
$(document).mouseup(function(e){
if(mouse_down) {
//
mouse_down = false;
$("#header").animate({height: 46},300);
$("#menu").removeClass("show");
$(".pullmenu-icon").removeClass("hide");
//
if(index>0) {
if(index==menu_items_count-1) {
$(".reload i").addClass("anim");
setTimeout(function(){
$("#menu li").removeClass("show");
$("#menu").css("transform","translate3d("+getItemX(0)+"px,0,0)");
$(".reload i").removeClass("anim");
setTimeout(function(){
$("#menu li").eq(0).addClass("show");
},500);
},1000);
} else {
current_index = index;
$(".pages").addClass("hide");
setTimeout(function(){
$(".pages").removeClass("hide");
$(".page").hide();
switch($("#menu li").eq(index).attr("data-index")) {
case '0': $("#latest").show(); break;
case '1': $("#best").show(); break;
case '2': $("#archive").show(); break;
case '3': $("#about").show(); break;
}
},1000);
}
}
}
});
$(document).mousemove(function(e){
$("#menu").removeClass("notrans");
if(mouse_down) {
var diff = Math.max(0, e.pageY - mouse_start_y);
if(diff>pull_release) diff = pull_release + (diff-pull_release)/(diff*0.01);
$("#header").height(46+diff);
index = Math.max(0,Math.min(menu_items_count-2, Math.floor((diff-release)/pull_step)));
if(diff>pull_release+pull_step*2) index = menu_items_count-1;
if(diff>release) {
$("#menu").addClass("show");
$(".pullmenu-icon").addClass("hide");
} else {
$("#menu").removeClass("show");
$(".pullmenu-icon").removeClass("hide");
}
$("#menu").css("transform","translate3d("+getItemX(index)+"px,0,0)");
$("#menu li").removeClass("show");
$("#menu li").eq(index).addClass("show");
$(".loader-icon").css("transform", "rotate("+(diff*20)+"deg)");
}
});
var getItemX = function(index){
var $item = $("#menu li").eq(index);
var item_offset = $item.offset().left;
var item_width = $item.outerWidth();
var menu_offset = $("#menu").offset().left;
var screen_width = $("#screen").width();
return (menu_offset-item_offset)+(screen_width-item_width)/2;
};
That’s all! hopefully, you have successfully created a pull-down menu. If you have any questions or suggestions, feel free to comment below.
