We Keep Coding

Two event for background image

I'm trying to create something to change wallpaper by clicking on picture or by clicking on a button.
Separately it's works, but when I click on a thumbnail wallpaper change and when I click on button I select a picture and it's ok but after if I want to click again on a thumbnail the problem appears, if someone can help me that would be very appreciated.
I created an example
$('ul#images li').click(function(e){
$('ul#images li').each(function(){
$(this).removeClass('active');
});
$(this).addClass('active');
var source = $(this).children('img').attr('src');
$('.outer').css('background', 'url('+source+')');
});
$(function () {
$(":file").change(function () {
if (this.files && this.files[0]) {
var reader = new FileReader();
reader.onload = imageIsLoaded;
reader.readAsDataURL(this.files[0]);
}
});
});
function imageIsLoaded(e) {
$('#myImg').attr('src', e.target.result);
}

clicking on the pictures sets a background for the .outer div, the button sets the background for an image tag. Why not have the button set the background for the .outer div too? Then remove the image tag altogether. I think then it would work as you expect, example below.
In the below example...
I changed setting background, to setting backgound-image so setting it does not override the other background css.
$('ul#images li').click(function(e){
$('ul#images li').each(function(){
$(this).removeClass('active');
});
$(this).addClass('active');
var source = $(this).children('img').attr('src');
$('.outer').css('background-image', 'url('+source+')');
});
$(function () {
$(":file").change(function () {
if (this.files && this.files[0]) {
var reader = new FileReader();
reader.onload = imageIsLoaded;
reader.readAsDataURL(this.files[0]);
}
});
});
function imageIsLoaded(e) {
//$('#myImg').attr('src', e.target.result);
$('.outer').css('background-image', 'url('+e.target.result+')');
}
*, *:before, *:after {
margin: 0; padding: 0;
box-sizing: border-box;
color: white;
font-family: 'Open Sans', sans-serif;
}
html, body {
height: 100%;
width: 100%;
}
ul, ol {
list-style-type: none;
}
a,
a:visited,
a:focus {
text-decoration: inherit;
font-weight: inherit;
color: inherit;
}
.outer {
background: black;
background: url('https://hdfondsdecran.com/image/201609/71/nuage-vue-de-dessus-multicolore-merveilleux.jpg');
background-position: center center;
#include transform(scale(1.1));
background-size: cover;
display: table;
height: 100%;
width: 100%;
position: relative;
z-index: 1;
}
.overlay {
background: rgba(black,0.6);
height: 100%; width: 100%;
position: absolute;
z-index: 2;
left:0;
top:0;
background-repeat: repeat;
}
h1 {
font-weight: 700;
font-size: 7em;
font-size: 8vw;
text-transform: uppercase;
position: relative;
}
h2 {
font-style: italic;
font-weight: 300;
font-size: 1.1em;
font-size: 1.5vw;
}
.inner {
position: relative;
z-index: 3;
display: table-cell;
vertical-align: middle;
text-align: center;
text-shadow: 0 0 20px rgba(black,0.6);
}
button {
background: transparent;
border: 2px solid white;
margin: 5px;
font-size: 0.8em;
font-size: 1.5vw;
padding: 10px 15px;
border-radius: 5px;
font-weight: 400;
cursor: pointer;
#include transition(all 0.4s ease);
}
button:hover {
background: white;
color: black;
}
ul#images li {
display: inline-block;
margin: 10px;
border: 2px solid white;
border-radius: 5px;
cursor: pointer;
opacity: 0.5;
}
ul#images li:hover {
opacity: 1;
}
ul#images li.active {
opacity: 1;
}
ul#images li img {
width: 100px;
height: 50px;
display: block;
border-radius: 5px;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="outer">
<div class="overlay">
</div>
<div class="inner">
<br><br><h2>Change Background Image:</h2><br>
<ul id="images">
<li class="active"><img src="https://img.gadgethacks.com/img/86/37/63601592852769/0/get-ios-10s-new-wallpaper-any-phone.1280x600.jpg" /></li>
<li><img src="https://www.itl.cat/pngfile/big/2-20588_ios-wallpaper-iphone-wallpaper-hd-desktop.jpg" /></li>
<li><img src="https://i.pinimg.com/originals/42/65/79/426579e96e9333ed9518c2fd9d3e5482.jpg" /></li>
<li><img src="https://i.pinimg.com/originals/a1/4d/e0/a14de021c4fa8049d2d798d5b98d7419.jpg" /></li>
<input type="file" id="uploader" />
<label for="uploader">Parcourir</label>
</ul>
</div>
</div>

Keep dropdown in a sidenav open based on url

I'm making a menu using this tutorial: https://www.w3schools.com/howto/howto_js_dropdown_sidenav.asp
I added this code to highlight currently selected link:
$("#sidenav a").each(function() {
if (this.href == window.location.href) {
$(this).addClass("active");
}
});
How do I keep the dropdown open if a link in the dropdown is highlighted?
Just to add - my sidenav includes more than one dropdown.
Edit
My HTML:
var dropdown = document.getElementsByClassName("dropdown-btn");
var i;
for (i = 0; i < dropdown.length; i++) {
dropdown[i].addEventListener("click", function() {
// this.classList.toggle("active");
var dropdownContent = this.nextElementSibling;
if (dropdownContent.style.display === "block") {
dropdownContent.style.display = "none";
} else {
dropdownContent.style.display = "block";
}
});
}
$("#sidenav a").each(function() {
if (this.href == window.location.href) {
$(this).addClass("active");
}
});
.sidenav {
height: 100%;
width: 16%;
position: fixed;
z-index: 1;
top: 0;
left: 0;
background-color: #212529;
overflow-x: hidden;
}
.sidenav a,
.dropdown-btn {
padding: 11px 8px 11px 16px;
text-decoration: none;
color: #ffffff;
display: block;
border: none;
background: none;
width: 100%;
text-align: left;
cursor: pointer;
outline: none;
}
.sidenav a:hover,
.dropdown-btn:hover {
background-color: #808080;
color: #f1f1f1;
}
a.active {
background-color: #002f7c;
}
.main {
margin-left: 200px;
font-size: 20px;
padding: 0px 10px;
}
.current-menu-item {
background: #33b5e5;
}
.dropdown-container {
display: none;
background-color: #262626;
padding-left: 8px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="sidenav" id="sidenav">
Users
<button class="dropdown-btn">Computers</button>
<div class="dropdown-container">
Assigned
Unassigned
</div>
<button class="dropdown-btn">Monitors</button>
<div class="dropdown-container">
Assigned
Unassigned
</div>
Licenses
Reports
Logs
</div>

with jquery function closest you can select the closest parent element with the specific selector $(this).closest(".dropdown-btn") selects the closest parent with class "dropdown-btn".
so after selecting that, you can simulate click action on it or make it visible directly .
var dropdown = document.getElementsByClassName("dropdown-btn");
var i;
for (i = 0; i < dropdown.length; i++) {
dropdown[i].addEventListener("click", function() {
// this.classList.toggle("active");
var dropdownContent = this.nextElementSibling;
if (dropdownContent.style.display === "block") {
dropdownContent.style.display = "none";
} else {
dropdownContent.style.display = "block";
}
});
}
$("#sidenav a").each(function() {
if (this.href == window.location.href) {
$(this).addClass("active");
$("dropdown-btn").css({display : "none"});
$(this).closest(".dropdown-btn").css({display : "block"});
}
});
.sidenav {
height: 100%;
width: 16%;
position: fixed;
z-index: 1;
top: 0;
left: 0;
background-color: #212529;
overflow-x: hidden;
}
.sidenav a,
.dropdown-btn {
padding: 11px 8px 11px 16px;
text-decoration: none;
color: #ffffff;
display: block;
border: none;
background: none;
width: 100%;
text-align: left;
cursor: pointer;
outline: none;
}
.sidenav a:hover,
.dropdown-btn:hover {
background-color: #808080;
color: #f1f1f1;
}
a.active {
background-color: #002f7c;
}
.main {
margin-left: 200px;
font-size: 20px;
padding: 0px 10px;
}
.current-menu-item {
background: #33b5e5;
}
.dropdown-container {
display: none;
background-color: #262626;
padding-left: 8px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="sidenav" id="sidenav">
Users
<button class="dropdown-btn">Computers</button>
<div class="dropdown-container">
Assigned
Unassigned
</div>
<button class="dropdown-btn">Monitors</button>
<div class="dropdown-container">
Assigned
Unassigned
</div>
Licenses
Reports
Logs
</div>

If you use jQuery, it is possible to select previous element of the link container and then fire click event on it to call the function that toggles the dropdown menu. So, you could use the following snippet, just replace $(this).attr("href") === "#1" with this.href == window.location.href.
$(".dropdown-btn").click(function() {
$(this).toggleClass("active").next().toggle();
});
$(".sidenav a").each(function() {
if ($(this).attr("href") === "#1") {
$(this)
.addClass("active")
.closest(".dropdown-container")
.prev(".dropdown-btn")
.trigger("click");
}
});
/* Fixed sidenav, full height */
.sidenav {
height: 100%;
width: 200px;
position: fixed;
z-index: 1;
top: 0;
left: 0;
background-color: #111;
overflow-x: hidden;
padding-top: 20px;
}
/* Style the sidenav links and the dropdown button */
.sidenav a, .dropdown-btn {
padding: 6px 8px 6px 16px;
text-decoration: none;
font-size: 20px;
color: #818181;
display: block;
border: none;
background: none;
width:100%;
text-align: left;
cursor: pointer;
outline: none;
}
/* On mouse-over */
.sidenav a:hover, .dropdown-btn:hover {
color: #f1f1f1;
}
/* Main content */
.main {
margin-left: 200px; /* Same as the width of the sidenav */
font-size: 20px; /* Increased text to enable scrolling */
padding: 0px 10px;
}
/* Add an active class to the active dropdown button */
.active {
background-color: green;
color: white;
}
/* Dropdown container (hidden by default). Optional: add a lighter background color and some left padding to change the design of the dropdown content */
.dropdown-container {
display: none;
background-color: #262626;
padding-left: 8px;
}
/* Optional: Style the caret down icon */
.fa-caret-down {
float: right;
padding-right: 8px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.2.0/css/all.css" integrity="sha384-hWVjflwFxL6sNzntih27bfxkr27PmbbK/iSvJ+a4+0owXq79v+lsFkW54bOGbiDQ" crossorigin="anonymous">
<div class="sidenav">
About
Services
Clients
Contact
<button class="dropdown-btn">Dropdown
<i class="fa fa-caret-down"></i>
</button>
<div class="dropdown-container">
Link 1
Link 2
Link 3
</div>
Search
</div>

two functions interfering with each other

So my first stab at web development is proceeding reasonably well.
However... I want to have two separate drop down menus, but the JavaScript functions are interfering with each other... That is, if both functions are active at the same time, clicking on one drop down will cause the other drop down to react or stop working. It is probably something massively stupid, but I have little time left. here is the code:
//Control sliding menu on screens smaller than a specified breakpoint.
(function(menu_button, links, breakpoint)
{
"use strict";
var menulink = document.getElementById(menu_button),
menu = document.getElementById(links);
menu.className = "start";
setTimeout(function()
{
menu.className = "collapsed";
}, 20);
menuLink.onclick = function()
{
if (menu.className === "displayed")
{
menu.className = "collapsed";
}
else
{
menu.className = "displayed";
}
return false;
};
window.onresize = function()
{
if (window.innerWidth < breakpoint)
{
menu.className = "collapsed";
}
};
})("menuLink", "navLinks", 700);
That was function No.1, here is No.2:
function dropFunction()
{
"use strict";
document.getElementById("myDropdown").classList.toggle("drop");
}
window.onclick = function(e)
{
"use strict";
if (!e.target.matches('.dropbtn'))
{
var dropdowns = document.getElementsByClassName("dropdownContent");
for (var d = 0; d < dropdowns.length; d++)
{
var openDropdown = dropdowns[d];
if (openDropdown.classList.contains("drop"))
{
openDropdown.classList.remove("drop");
}
}
}
}
and HTML if at all usefull:
<nav>
<p id="menuLink">MENU</p>
<ul class="displayed" id="navLinks">
<li>Home</li>
<li>Portfolio</li>
<li>Shop</li>
<li>Contact</li>
</ul>
</nav>
<div class="dropdownContent" id="myDropdown">
<img class="externalLink" src="images/faceBook.png" style="width:20px">
<img class="externalLink" src="images/linkedIn.png" style="width:20px">
<img class="externalLink" src="images/soundCloud.png" style="width:20px">
</div>
and CSS:
.nav
{
display: inline;
position: absolute;
bottom: 220px;
padding-right: 60px;
width: 100%;
background-color: transparent;
font-family: "verdana";
font-size: 20px;
text-align: center;
}
.nav li
{
display: inline;
}
.nav a
{
display: inline-block;
padding: 50px;
text-decoration: none;
color: #E4E4E4;
}
.nav a:hover
{
color: #FFFFFF;
text-shadow: 0px 0px 15px #FFFFFF;
}
.nav a:active
{
color: #5B4CA8;
}
li.drops
{
display: inline-block;
}
.dropdownContent
{
display: none;
position: absolute;
background-color: transparent;
box-shadow: none;
minimum-width: 20px;
}
.dropdownContent a
{
color: transparent;
text-decoration: none;
display: block;
text-align: center;
}
.drop
{
display: block;
}
#menuLink
{
width: 100%;
background-color: transparent;
list-style-type: none;
padding: 0;
margin: 0;
text-align: center;
}
#menuLink a
{
text-decoration: none;
font-family: "helvetica";
color: #E4E4E4;
}
#menuLink a:hover
{
color: #FFFFFF;
text-shadow: 0px 0px 15px #FFFFFF;
}
#menuLink a:active
{
color: #5B4CA8;
}
#navLinks
{
position: absolute;
list-style-type: none;
width: 100%;
background-color: transparent;
padding: 0;
margin: 0;
text-align: center;
z-index: 1;
opacity: 1;
-webkit-transition: all ease-out 0.5s;
transition: all ease-out 0.5s;
}
#navLinks a
{
display: block;
padding: 10px;
font-family: "helvetica";
color: #E4E4E4;
text-decoration: none;
font-size: 18px;
}
#navLinks a:hover
{
color: #FFFFFF;
text-shadow: 0px 0px 15px #FFFFFF;
}
#navLinks a:active
{
color: #5B4CA8;
}
#navLinks.start
{
display: none;
}
#navLinks.collapsed
{
top: -12em;
opacity: 0;
}
Thanks for your help!

You have used the window.Onlcick event to specify behaviors for the dropdowns if the user is not clicking on something with class "drop". This event will fire if you click on any item in that window because events bubble up like that in JavaScript.

Editing html+css+js for a drop down nav bar

I found perfect code for drop down nav bar. But I'm stuck trying to edit it for my needs. Original complete code is situated here: https://github.com/vandoan/Elli/blob/master/dropDownNav.html
And how it looks: http://codepen.io/Xia-lj/pen/KdKOxw
HTML:
<div id="topbar">
<div id="logo">LOGO</div>
<div id="sections_btn_holder">
<button onclick="toggleNavPanel('sections_panel')">Navigator <span id="navarrow">▾</span></button>
</div>
<div id="sections_panel">
<div>
Try adding things like more child div containers, links, buttons, menus, pictures, paragraphs, videos, etc...
</div>
</div>
</div>
CSS:
body {
margin: 0px;
background: #999;
}
div#topbar {
background: -webkit-linear-gradient(#666, #000);
background: linear-gradient(#666, #000);
height: 60px;
}
div#topbar > #logo {
float: left;
width: 140px;
height: 35px;
margin: 8px 0px 0px 30px;
font-size: 36px;
color: #999;
}
div#topbar > #sections_btn_holder {
float: left;
width: 144px;
height: 46px;
padding-top: 16px;
}
div#topbar > #sections_btn_holder > button {
background: #F90;
}
div#topbar > #sections_panel {
position: absolute;
height: 0px;
width: 550px;
background: #000;
top: 60px;
left: 160px;
border-radius: 0px 0px 8px 8px;
overflow: hidden;
z-index: 10000;
transition: height 0.3s linear 0s;
}
div#topbar > #sections_panel > div {
background: #333;
padding: 20px;
height: 238px;
margin: 10px;
color: #FC0;
}
JS:
function toggleNavPanel(x) {
var panel = document.getElementById(x),
navarrow = document.getElementById("navarrow"),
maxH = "300px";
if (panel.style.height == maxH) {
panel.style.height = "0px";
navarrow.innerHTML = "▾";
} else {
panel.style.height = maxH;
navarrow.innerHTML = "▴";
}
}
What I'm trying to get: drop down nav bar like in example, but with three buttons "History", "Philosophy", "Physics". And each of this three sections must contain few books' names, e.g:
History:-
The History of Herodotus.
Titus Livius. The History of Rome.
Ivan Krypiakevych. The Great History of Ukraine.
"Philosophy":-
Works by Plato.
Nicomachean Ethics By Aristotle.
Fables And Aphorisms by Hryhorii Skovoroda.
"Physics":-
Stephen Hawking. A Brief History of Time.
Yakov Perelman. Physics for Entertainment.
I would be grateful to hear from anyone who may be able to help. I'm new in Web-development.

How about something like this CodePen which is same example you provided just a bit modified on the HTML and CSS parts, inside div#sections_panel I've added 3 divs - you mentioned 3 sections in the question - with a .sub_sections class name.
function toggleNavPanel(x) {
var panel = document.getElementById(x),
navarrow = document.getElementById("navarrow"),
maxH = "300px";
if (panel.style.height == maxH) {
panel.style.height = "0px";
navarrow.innerHTML = "▾";
} else {
panel.style.height = maxH;
navarrow.innerHTML = "▴";
}
}
body {
margin: 0px;
background: #999;
}
div#topbar {
background: -webkit-linear-gradient(#666, #000);
background: linear-gradient(#666, #000);
height: 60px;
}
div#topbar > #logo {
float: left;
width: 140px;
height: 35px;
margin: 8px 0px 0px 30px;
font-size: 36px;
color: #999;
}
div#topbar > #sections_btn_holder {
float: left;
width: 144px;
height: 46px;
padding-top: 16px;
}
div#topbar > #sections_btn_holder > button {
background: #F90;
}
div#topbar > #sections_panel {
position: absolute;
height: 0px;
width: 550px;
background: #000;
top: 60px;
padding:0 10px;
left: 160px;
border-radius: 0px 0px 8px 8px;
overflow: hidden;
z-index: 10000;
transition: height 0.3s linear 0s;
}
div#topbar > #sections_panel > .sub_sections {
background: #333;
padding: 10px;
height: 258px;
margin:10px 2px 0 0;
color: #FC0;
width:calc(31% - 10px);
display:inline-block;
float:left;
}
#sections_panel > .sub_sections > a{
color:#EEE;
display:block;
padding:10px 5px;
text-decoration:none;
border-bottom:1px dotted #666;
}
#sections_panel > .sub_sections > a:hover{
color:#333;
background-color:orange;
}
#sections_panel > .sub_sections > h3{
color:orange;
text-align:center;
padding-bottom:5px;
border-bottom:1px #222 solid;
}
<div id="topbar">
<div id="logo">LOGO</div>
<div id="sections_btn_holder">
<button onclick="toggleNavPanel('sections_panel')">Navigator <span id="navarrow">▾</span></button>
</div>
<div id="sections_panel">
<div class="sub_sections">
<h3>Search Engines</h3>
Google
Yahoo!
Bing
</div>
<div class="sub_sections">
<h3>Social Networks</h3>
Facebook
Twitter
</div>
<div class="sub_sections">
<h3>Video Networks</h3>
Youtube
Vimeo
</div>
</div>
</div>

try this......
Html
<div id="topbar">
<div id="logo">LOGO</div>
<div id="sections_btn_holder">
<button onclick="toggleNavPanel('The History of Herodotus,Titus Livius. The History of Rome,Ivan Krypiakevych. The Great History of Ukraine','sections_panel')">History <span id="navarrow">▾</span></button>
<button onclick="toggleNavPanel('Works by Plato,Nicomachean Ethics By Aristotle,Fables And Aphorisms by Hryhorii Skovoroda','sections_panel')">Philosophy <span id="navarrow">▾</span></button>
<button onclick="toggleNavPanel('Stephen Hawking. A Brief History of Time,Yakov Perelman. Physics for Entertainment','sections_panel')">Physics <span id="navarrow">▾</span></button>
</div>
<div id="sections_panel">
<div>
</div>
</div>
</div>
CSS
body {
margin: 0px;
background: #999;
}
div#topbar {
background: -webkit-linear-gradient(#666, #000);
background: linear-gradient(#666, #000);
height: 60px;
}
div#topbar > #logo {
float: left;
width: 140px;
height: 35px;
margin: 8px 0px 0px 30px;
font-size: 36px;
color: #999;
}
div#topbar > #sections_btn_holder {
float: left;
width: auto;
height: 46px;
padding-top: 16px;
}
div#topbar > #sections_btn_holder > button {
background: #F90;
}
div#topbar > #sections_panel {
position: absolute;
height: 0px;
width: 550px;
background: #000;
top: 60px;
left: 160px;
border-radius: 0px 0px 8px 8px;
overflow: hidden;
z-index: 10000;
transition: height 0.3s linear 0s;
}
div#topbar > #sections_panel > div {
background: #333;
padding: 20px;
height: 238px;
margin: 10px;
color: #FC0;
}
JS
function toggleNavPanel(text,x) {
var panel = document.getElementById(x),
navarrow = document.getElementById("navarrow"),
maxH = "300px";
var books=text.split(",");
var html='';
for(var i=0; i<books.length; i++){
html+=(i+1)+") "+books[i]+"<br/>";
}
if (panel.style.height == maxH) {
panel.style.height = "0px";
panel.innerHTML="";
navarrow.innerHTML = "▾";
} else {
panel.style.height = maxH;
panel.innerHTML="<div>"+html+"</div>";
navarrow.innerHTML = "▴";
}
}

are you looking for something like http://codepen.io/fwpolice/pen/pqlgy
jQuery(document).ready(function (e) {
function t(t) {
e(t).bind("click", function (t) {
t.preventDefault();
e(this).parent().fadeOut()
})
}
e(".dropdown-toggle").click(function () {
var t = e(this).parents(".button-dropdown").children(".dropdown-menu").is(":hidden");
e(".button-dropdown .dropdown-menu").hide();
e(".button-dropdown .dropdown-toggle").removeClass("active");
if (t) {
e(this).parents(".button-dropdown").children(".dropdown-menu").toggle().parents(".button-dropdown").children(".dropdown-toggle").addClass("active")
}
});
e(document).bind("click", function (t) {
var n = e(t.target);
if (!n.parents().hasClass("button-dropdown")) e(".button-dropdown .dropdown-menu").hide();
});
e(document).bind("click", function (t) {
var n = e(t.target);
if (!n.parents().hasClass("button-dropdown")) e(".button-dropdown .dropdown-toggle").removeClass("active");
})
});
body {
background-color: #eee;
text-align: center;
padding-top: 50px;
}
.nav {
display: block;
font: 13px Helvetica, Tahoma, serif;
text-transform: uppercase;
margin: 0;
padding: 0;
}
.nav li {
display: inline-block;
list-style: none;
}
.nav .button-dropdown {
position: relative;
}
.nav li a {
display: block;
color: #333;
background-color: #fff;
padding: 10px 20px;
text-decoration: none;
}
.nav li a span {
display: inline-block;
margin-left: 5px;
font-size: 10px;
color: #999;
}
.nav li a:hover, .nav li a.dropdown-toggle.active {
background-color: #289dcc;
color: #fff;
}
.nav li a:hover span, .nav li a.dropdown-toggle.active span {
color: #fff;
}
.nav li .dropdown-menu {
display: none;
position: absolute;
left: 0;
padding: 0;
margin: 0;
margin-top: 3px;
text-align: left;
}
.nav li .dropdown-menu.active {
display: block;
}
.nav li .dropdown-menu a {
width: 150px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul class="nav">
<li>
<a href="#">
No dropdown
</a>
</li>
<li class="button-dropdown">
<a href="javascript:void(0)" class="dropdown-toggle">
Dropdown 1 <span>▼</span>
</a>
<ul class="dropdown-menu">
<li>
<a href="#">
Drop Item 1
</a>
</li>
<li>
<a href="#">
Drop Item 2
</a>
</li>
<li>
<a href="#">
Drop Item 3
</a>
</li>
</ul>
</li>
<li>
<a href="#">
No dropdown
</a>
</li>
<li class="button-dropdown">
<a href="javascript:void(0)" class="dropdown-toggle">
Dropdown 2 <span>▼</span>
</a>
<ul class="dropdown-menu">
<li>
<a href="#">
asdf
</a>
</li>
</ul>
</li>
</ul>
<script src="//ajax.googleapis.com/ajax/libs/jquery/2.0.3/jquery.min.js"></script>

Maybe this toolbar is one for you:
http://w2ui.com/web/demo/toolbar

I'm trying to add previous and next arrows to this content slider

Currently there are circles at the bottom that can be used to navigate between slides. I would like to add next and previous arrows to the sides that the user can click on to proceed forwards or back through the slides.
CSS:
#wrapper {
width: 2000px;
position: relative;
left: 0px;
transition: left 0.6s ease-in-out;
}
.content {
float: left;
width: 500px;
height: 300px;
white-space: normal;
background-repeat: no-repeat;
}
#contentContainer {
width: 500px;
height: 300px;
overflow: hidden;
}
#navLinks {
margin-top:-61px;
position:relative;
text-align: center;
width: 500px;
}
#navLinks ul {
margin: 0px;
padding: 0px;
display: inline-block;
margin-top: 6px;
}
#navLinks ul li {
float: left;
text-align: center;
margin: 10px;
list-style: none;
cursor: pointer;
background-color: rgba(204,204,204,0.8);
padding: 10px;
border-radius: 50%;
}
#navLinks ul li:hover {
background-color: #FFF;
}
#navLinks ul li.active {
background-color: rgba(156,227,100,0.9);
color: #FFFFFF;
}
#navLinks ul li.active:hover {
background-color: red;
color:#FFF;
}
#itemOne {
background-image: url("http://telcospace.com/wp-content/uploads/2013/02/android_eating_apple_1000x500_by_crus23-d38bpx9-640x300.jpg");
}
#itemTwo {
background-image: url("http://www.thetimesofhealth.com/wp-content/uploads/2014/08/Angry-Baby-Face-500x300.jpg");
}
#itemThree {
background-image: url("http://animalsugar.com/wp-content/uploads/2014/10/baby-cat-hd-wallpapers-baby-cat-widescreen.jpg");
}
#itemFour {
background-image: url("http://cuteimages.net/data/2015/5/the-first-puppy-to-leave-me-speechless-name-cuteimages.net.png");
}
HTML:
<div id="contentContainer">
<div id="wrapper">
<div id="itemOne" class="content">
</div>
<div id="itemTwo" class="content">
</div>
<div id="itemThree" class="content">
</div>
<div id="itemFour" class="content">
</div>
</div>
</div>
<div id="navLinks">
<ul>
<li class="itemLinks" data-pos="0px"></li>
<li class="itemLinks" data-pos="-500px"></li>
<li class="itemLinks" data-pos="-1000px"></li>
<li class="itemLinks" data-pos="-1500px"></li>
</ul>
</div>
JavaScript:
var links = document.querySelectorAll(".itemLinks");
var wrapper = document.querySelector("#wrapper");
var activeLink = 0;
for (var i = 0; i < links.length; i++) {
var link = links[i];
link.addEventListener('click', setClickedItem, false);
link.itemID = i;
}
links[activeLink].classList.add("active");
function setClickedItem(e) {
removeActiveLinks();
resetTimer();
var clickedLink = e.target;
activeLink = clickedLink.itemID;
changePosition(clickedLink);
}
function removeActiveLinks() {
for (var i = 0; i < links.length; i++) {
links[i].classList.remove("active");
}
}
function changePosition(link) {
link.classList.add("active");
var position = link.getAttribute("data-pos");
wrapper.style.left = position;
}
var timeoutID;
function startTimer() {
timeoutID = window.setInterval(goToNextItem, 2963);
}
startTimer();
function resetTimer() {
window.clearInterval(timeoutID);
startTimer();
}
function goToNextItem() {
removeActiveLinks();
if (activeLink < links.length - 1) {
activeLink++;
} else {
activeLink = 0;
}
var newLink = links[activeLink];
changePosition(newLink);
}
Here is the JSFiddle http://jsfiddle.net/stormbloom/2d0a1215/
I would like to learn this for personal experience, otherwise I would just use a plugin like WowSlider. If it's easier to do this by building a new slider from scratch then any links to resources explaining how to accomplish this would also be appreciated.

This is an approach with arrows, just tweak with the design.
In the HTML I added the correspoding arrows, and in the JS I added the EventListeners and the function goToPreviousItem() at the end.
var links = document.querySelectorAll(".itemLinks");
var wrapper = document.querySelector("#wrapper");
document.querySelector('#previous').addEventListener('click', goToPreviousItem, false);
document.querySelector('#next').addEventListener('click', goToNextItem, false);
var activeLink = 0;
for (var i = 0; i < links.length; i++) {
var link = links[i];
link.addEventListener('click', setClickedItem, false);
link.itemID = i;
}
links[activeLink].classList.add("active");
function setClickedItem(e) {
removeActiveLinks();
resetTimer();
var clickedLink = e.target;
activeLink = clickedLink.itemID;
changePosition(clickedLink);
}
function removeActiveLinks() {
for (var i = 0; i < links.length; i++) {
links[i].classList.remove("active");
}
}
function changePosition(link) {
link.classList.add("active");
var position = link.getAttribute("data-pos");
wrapper.style.left = position;
}
var timeoutID;
function startTimer() {
timeoutID = window.setInterval(goToNextItem, 2963);
}
//startTimer();
function resetTimer() {
window.clearInterval(timeoutID);
startTimer();
}
function goToNextItem() {
removeActiveLinks();
if (activeLink < links.length - 1) {
activeLink++;
} else {
activeLink = 0;
}
var newLink = links[activeLink];
changePosition(newLink);
}
function goToPreviousItem() {
removeActiveLinks();
if(activeLink == 0) {
activeLink = links.length - 1;
} else {
activeLink--;
}
var newLink = links[activeLink];
changePosition(newLink);
}
#wrapper {
width: 2000px;
position: relative;
left: 0px;
transition: left 0.6s ease-in-out;
}
.content {
float: left;
width: 500px;
height: 300px;
white-space: normal;
background-repeat: no-repeat;
}
#outsideContainer {
width: 600px;
}
#previous {
width: 50px;
display: inline-block;
text-align: center;
float: left;
margin-top: 150px;
}
#next {
width: 50px;
display: inline-block;
text-align: center;
float: right;
margin-top: 150px;
}
#contentContainer {
width: 500px;
height: 300px;
overflow: hidden;
display: inline-block;
}
#navLinks {
margin-top:-61px;
position:relative;
text-align: center;
width: 600px;
}
#navLinks ul {
margin: 0px;
padding: 0px;
display: inline-block;
margin-top: 6px;
}
#navLinks ul li {
float: left;
text-align: center;
margin: 10px;
list-style: none;
cursor: pointer;
background-color: rgba(204,204,204,0.8);
padding: 10px;
border-radius: 50%;
border:rgba(255,255,255,0.9) 1px solid;
box-shadow: 0 0 4px #fff;
}
#navLinks ul li:hover {
background-color: #FFF;
box-shadow: 0 0 10px #fff;
border:rgba(255,255,255,0.6) 1px solid;
}
#navLinks ul li.active {
background-color: rgba(156,227,100,0.9);
color: #FFFFFF;
outline-width: 1px;
}
#navLinks ul li.active:hover {
background-color: rgba(255,255,255,0.7);
color: #FFFFFF;
box-shadow: 0 0 10px #fff;
border:rgba(255,255,255,0.9) 1px solid;
}
#itemOne {
background-color: #000;
background-image: url("http://telcospace.com/wp-content/uploads/2013/02/android_eating_apple_1000x500_by_crus23-d38bpx9-640x300.jpg");
}
#itemTwo {
background-color: #fff;
background-image: url("http://www.thetimesofhealth.com/wp-content/uploads/2014/08/Angry-Baby-Face-500x300.jpg");
}
#itemThree {
background-color: #fff;
background-image: url("http://animalsugar.com/wp-content/uploads/2014/10/baby-cat-hd-wallpapers-baby-cat-widescreen.jpg");
}
#itemFour {
background-color: #fff;
background-image: url("http://images5.fanpop.com/image/photos/28100000/Katy-Perry-gifs-katy-perry-28147211-500-300.gif");
}
<div id="outsideContainer">
<div id="previous"><<</div>
<div id="contentContainer">
<div id="wrapper">
<div id="itemOne" class="content"></div>
<div id="itemTwo" class="content"></div>
<div id="itemThree" class="content"></div>
<div id="itemFour" class="content"></div>
</div>
</div>
<div id="next">>></div>
</div>
<div id="navLinks">
<ul>
<li class="itemLinks" data-pos="0px"></li>
<li class="itemLinks" data-pos="-500px"></li>
<li class="itemLinks" data-pos="-1000px"></li>
<li class="itemLinks" data-pos="-1500px"></li>
</ul>
</div>