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document.addEventListener blocking highlight in textarea

I did a div that is moveable but unfortunetaly the function that let user move the div also block the highlight of the text in the text area behind.
I would like to keep the possibility to move the div and to highlight the text in textarea like I want.
Ps: I already tried to put the addEventListener on varMoveButtonNotesWindow but it's really ncomfortable to use it like that (we need to keep the cursor in the little box, and I dont want the box to be bigger it wouldn't look good).
Here's the code:
var mousePosition;
var offset = [0,0];
var isDown = false;
var varMoveButtonNotesWindow = document.getElementById('moveButtonNotesWindow');
var varNotesWindow = document.getElementById('notesWindow');
varMoveButtonNotesWindow.addEventListener('mousedown', function(e) {
isDown = true;
offset = [
varNotesWindow.offsetLeft - e.clientX,
varNotesWindow.offsetTop - e.clientY
];
}, true);
document.addEventListener('mouseup', function() {
isDown = false;
}, true);
//The bug occurs here
document.addEventListener('mousemove', function(event) {
event.preventDefault();
if (isDown) {
mousePosition = {
x : event.clientX,
y : event.clientY
};
varNotesWindow.style.left = (mousePosition.x + offset[0]) + 'px';
varNotesWindow.style.top = (mousePosition.y + offset[1]) + 'px';
}
}, true);
//so far
function closeNotesWindow() {
varNotesWindow.classList.remove('show');
}
function openNotesWindow() {
windowsModalContainer.classList.remove('show');
varNotesWindow.classList.add('show');
};
.firstTextarea {
height: 300px;
width: 300px;
}
#notesWindow {
display: block;
position: absolute;
width: 300px;
height: 275px;
top: 0px;
left: 0px;
border: 2px solid #313131;
z-index: 2;
resize: both;
overflow: auto;
}
#headerNotesWindow {
height: 35px;
background-color: black;
}
#moveButtonNotesWindow {
position: absolute;
background-color: blue;
color: white;
width: 20px;
height: 20px;
right: 5px;
z-index: 1;
top: 7.5px;
}
#closeButtonNotesWindow {
position: absolute;
background-color: red;
color: white;
width: 20px;
height: 20px;
right: 30px;
z-index: 1;
top: 7.5px;
}
#divTextareaNotesWindow {
text-align: center;
height: calc(100% - 6px - 35px);
}
#textareaNotesWindow {
resize: none;
width: calc(100% - 6px);
height: 100%;
outline: none;
}
<textarea class="firstTextarea">Pokemon is the best game of my childhood.</textarea>
<div class="divWindow" id="notesWindow">
<div id="headerNotesWindow">
<div id="moveButtonNotesWindow"></div>
<div id="closeButtonNotesWindow" onclick="closeNotesWindow()"></div>
</div>
<div id="divTextareaNotesWindow">
<textarea id="textareaNotesWindow"></textarea>
</div>
</div>

This can do like but not perfact：
RollBack selection when focus back it.
var mousePosition;
var offset = [0,0];
var isDown = false;
var varMoveButtonNotesWindow = document.getElementById('moveButtonNotesWindow');
var varNotesWindow = document.getElementById('notesWindow');
varMoveButtonNotesWindow.addEventListener('mousedown', function(e) {
isDown = true;
offset = [
varNotesWindow.offsetLeft - e.clientX,
varNotesWindow.offsetTop - e.clientY
];
}, true);
document.addEventListener('mouseup', function() {
isDown = false;
}, true);
//The bug occurs here
document.addEventListener('mousemove', function(event) {
event.preventDefault();
if (isDown) {
mousePosition = {
x : event.clientX,
y : event.clientY
};
varNotesWindow.style.left = (mousePosition.x + offset[0]) + 'px';
varNotesWindow.style.top = (mousePosition.y + offset[1]) + 'px';
}
}, true);
//so far
window.addEventListener('load',function(){
var logTextSelection = function(event) {
var tgItem = event.target;
tgItem.setAttribute("lastSelectionStart",tgItem.selectionStart);
tgItem.setAttribute("lastSelectionEnd",tgItem.selectionEnd);
}
var rollBackSelection = function(event){
var tgItem = event.target;
var lastSelectionStart = tgItem.getAttribute("lastSelectionStart");
var lastSelectionEnd = tgItem.getAttribute("lastSelectionEnd");
if((lastSelectionStart !== lastSelectionEnd)){
tgItem.focus();
tgItem.setSelectionRange(lastSelectionStart,lastSelectionEnd);
}
}
var docTextareas = document.getElementsByTagName('textarea');
for (var i = 0; i < docTextareas.length; i++) {
docTextareas[i].addEventListener('select', logTextSelection, true);
docTextareas[i].addEventListener('keyup', logTextSelection, true);
docTextareas[i].addEventListener('focus', rollBackSelection, true);
}
});
function closeNotesWindow() {
varNotesWindow.classList.remove('show');
}
function openNotesWindow() {
windowsModalContainer.classList.remove('show');
varNotesWindow.classList.add('show');
};
.firstTextarea {
height: 300px;
width: 300px;
}
#notesWindow {
display: block;
position: absolute;
width: 300px;
height: 275px;
top: 0px;
left: 0px;
border: 2px solid #313131;
z-index: 2;
resize: both;
overflow: auto;
}
#headerNotesWindow {
height: 35px;
background-color: black;
}
#moveButtonNotesWindow {
position: absolute;
background-color: blue;
color: white;
width: 20px;
height: 20px;
right: 5px;
z-index: 1;
top: 7.5px;
}
#closeButtonNotesWindow {
position: absolute;
background-color: red;
color: white;
width: 20px;
height: 20px;
right: 30px;
z-index: 1;
top: 7.5px;
}
#divTextareaNotesWindow {
text-align: center;
height: calc(100% - 6px - 35px);
}
#textareaNotesWindow {
resize: none;
width: calc(100% - 6px);
height: 100%;
outline: none;
}
<textarea class="firstTextarea">Pokemon is the best game of my childhood.</textarea>
<div class="divWindow" id="notesWindow">
<div id="headerNotesWindow">
<div id="moveButtonNotesWindow"></div>
<div id="closeButtonNotesWindow" onclick="closeNotesWindow()"></div>
</div>
<div id="divTextareaNotesWindow">
<textarea id="textareaNotesWindow"></textarea>
</div>
</div>

OK I found it, i just created a div that replace document for the addeventListener.
Ps I set the color to rgba(0, 175, 0, 0.3) just for you to see how it react and work you can obviously change it to 0.
function start() {
varNotesWindow.classList.add('show');
}
var mousePosition;
var offset = [0,0];
var isDown = false;
var varMoveButtonNotesWindow = document.getElementById('moveButtonNotesWindow');
var varNotesWindow = document.getElementById('notesWindow');
const constAlternativeDocumentForMoveButtonsWindow = document.getElementById('alternativeDocumentForMoveButtonsWindowId');
//Start Move Notes Window
varMoveButtonNotesWindow.addEventListener('mousedown', function(e) {
isDown = true;
offset = [
varNotesWindow.offsetLeft - e.clientX,
varNotesWindow.offsetTop - e.clientY
];
constAlternativeDocumentForMoveButtonsWindow.classList.add('use');
}, true);
constAlternativeDocumentForMoveButtonsWindow.addEventListener('mousemove', function(event) {
event.preventDefault();
if (isDown) {
mousePosition = {
x : event.clientX,
y : event.clientY
};
varNotesWindow.style.left = (mousePosition.x + offset[0]) + 'px';
varNotesWindow.style.top = (mousePosition.y + offset[1]) + 'px';
}
}, true);
constAlternativeDocumentForMoveButtonsWindow.addEventListener('mouseup', function() {
constAlternativeDocumentForMoveButtonsWindow.classList.remove('use');
});
document.addEventListener('mouseup', function() {
isDown = false;
}, true);
//End Move Notes Window
function closeNotesWindow() {
varNotesWindow.classList.remove('show');
}
function openNotesWindow() {
windowsModalContainer.classList.remove('show');
varNotesWindow.classList.add('show');
};
.alternativeDocumentForMoveButtonsWindowClass {
display: none;
}
.alternativeDocumentForMoveButtonsWindowClass.use {
display: block;
position: absolute;
z-index: 3;
width: 100%;
height: 100%;
left: 0;
top: 0;
background-color: rgba(0, 175, 0, 0.3);
}
#notesWindow {
display: none;
}
#notesWindow.show {
display: block;
position: absolute;
width: 300px;
height: 275px;
top: 0px;
left: 0px;
border: 2px solid #313131;
z-index: 2;
resize: both;
overflow: auto;
}
#headerNotesWindow {
height: 35px;
background-color: black;
}
#moveButtonNotesWindow {
position: absolute;
background-color: blue;
color: white;
width: 20px;
height: 20px;
right: 5px;
z-index: 1;
top: 7.5px;
}
#closeButtonNotesWindow {
position: absolute;
background-color: red;
color: white;
width: 20px;
height: 20px;
right: 30px;
z-index: 1;
top: 7.5px;
}
#divTextareaNotesWindow {
text-align: center;
height: calc(100% - 6px - 35px);
}
#textareaNotesWindow {
resize: none;
width: calc(100% - 6px);
height: 100%;
outline: none;
}
<button onclick='start()'>Let's Go</div>
<div class="alternativeDocumentForMoveButtonsWindowClass" id="alternativeDocumentForMoveButtonsWindowId"></div>
<div class="divWindow" id="notesWindow">
<div id="headerNotesWindow">
<div id="moveButtonNotesWindow"></div>
<div id="closeButtonNotesWindow" onclick="closeNotesWindow()"></div>
</div>
<div id="divTextareaNotesWindow">
<textarea id="textareaNotesWindow"></textarea>
</div>
</div>

How to rotate a box div while dragging an element using jquery

I understand that we need to use transform: rotate(ndeg); in order to rotate a specific element in CSS. In this case, I want to do it dynamically. Using jQuery, I want to rotate the box/container div when the user drags the handle (the red background) on n degrees as the user wishes. Is it possible in jQuery?
body {
padding: 50px;
}
.box_element {
border: 1px solid black;
width: 200px;
height: 200px;
position: relative;
z-index: -1;
}
.handle {
position: absolute;
bottom: -10px;
right: -10px;
width: 10px;
height: 10px;
border: 1px solid;
background: red;
z-index: 10;
}
<body>
<div class="box_element">
THIS IS TEST
<div class="handle"></div>
</div>
</body>

Here you need to write few code to make it possible, try live code https://codepen.io/libin-prasanth/pen/xxxzbLg
var stop,
active = false,
angle = 0,
rotation = 0,
startAngle = 0,
center = {
x: 0,
y: 0
},
R2D = 180 / Math.PI;
function start(e) {
e.preventDefault();
var bb = this.getBoundingClientRect(),
t = bb.top,
l = bb.left,
h = bb.height,
w = bb.width,
x,
y;
center = {
x: l + w / 2,
y: t + h / 2
};
x = e.clientX - center.x;
y = e.clientY - center.y;
startAngle = R2D * Math.atan2(y, x);
return (active = true);
}
function rotate(e) {
e.preventDefault();
var x = e.clientX - center.x,
y = e.clientY - center.y,
d = R2D * Math.atan2(y, x);
rotation = d - startAngle;
return (rot.style.webkitTransform = "rotate(" + (angle + rotation) + "deg)");
}
function stop() {
angle += rotation;
return (active = false);
}
rot = document.getElementById("draggable");
rot.addEventListener("mousedown", start, false);
window.addEventListener("mousemove", function(event) {
if (active === true) {
event.preventDefault();
rotate(event);
}
});
window.addEventListener("mouseup", function(event) {
event.preventDefault();
stop(event);
});
#draggable {
left: 50px;
top: 50px;
width: 100px;
height: 100px;
position: relative;
border: 1px solid #000;
}
#draggable:before{
content: "";
position: absolute;
bottom: -5px;
right: -5px;
width: 10px;
height: 10px;
background: #f00;
}
<div id="draggable">
</div>

You can make use of a css-variable and then change the value of the variable when clicked.
const box_element = document.getElementById('box_element');
const handle = document.getElementById('handle');
handle.addEventListener('click', function() {
let currentVal = getComputedStyle(box_element).getPropertyValue('--rotate_deg');
box_element.style.setProperty(
'--rotate_deg', ((parseInt(currentVal.replace('deg', '')) + 90) % 360) + 'deg');
});
:root {
--rotate_deg: 0deg;
}
.box_element {
margin: 1em;
border: 1px solid black;
width: 100px;
height: 100px;
position: relative;
z-index: -1;
transform: rotate(var(--rotate_deg))
}
.handle {
position: absolute;
bottom: -10px;
right: -10px;
width: 10px;
height: 10px;
border: 1px solid;
background: red;
z-index: 10;
cursor: pointer;
}
<div class="box_element" id="box_element">
THIS IS TEST
<div class="handle" id="handle"></div>
</div>

Javascript dynamically adding divs from the left side

At the moment it is starting from the left side and adding div's to the right but how can I make it add div's from the left. So that the first card would appear in the middle and add them behind it (to the left side).
I have tried setting float: right, but it does not give the wanted results.
var parentEl = document.getElementById("cards");
var elem = document.getElementById("myBar");
var width;
var id;
var parentEl = document.getElementById("cards");
var elem = document.getElementById("myBar");
var lastCard;
var width;
var id;
function sortCards() {
var cards = document.getElementsByClassName("card"),
cw = parentEl.clientWidth,
sw = parentEl.scrollWidth,
diff = sw - cw,
offset = diff / (cards.length - 1 );
for (var i = 0; i < cards.length; i++) {
i != 0 && (cards[i].style.transform = "translateX(-" + offset * i + "px)");
}
}
//Move card
document.getElementById("moveCard").addEventListener("click", function () {
myMove();
});
//Start the game
document.getElementById("play").addEventListener("click", function() {
move();
});
//Stop the game
document.getElementById("stop").addEventListener("click", function() {
stop();
});
function move() {
width = 1;
id = setInterval(frame, 5);
function frame() {
if (width >= 100) {
elem.style.width = 1 + '%';
clearInterval(id);
addCard();
move();
} else {
width++;
elem.style.width = width + '%';
}
}
}
function myMove() {
var elem = lastCard;
lastCard = lastCard.previousSibling;
var pos = 0;
var id = setInterval(movie, 5);
function movie() {
if (pos == 350) {
clearInterval(id);
elem.remove();
} else {
pos = pos + 5;
elem.style.top = pos + 'px';
elem.style.left = pos + 'px';
}
}
}
function addCard(){
var div = document.createElement("div");
div.style.position = "relative";
div.style.color = "green";
div.style.left = "auto";
div.classList.add("card");
parentEl.appendChild(div);
lastCard = div;
sortCards();
}
function stop() {
elem.style.width = 1 + '%';
clearInterval(id);
}
sortCards();
.cards {
display: flex;
max-width: 300px;
}
.card {
height: 90px;
border: 1px solid black;
border-radius: 3px;
background-color: rgba(255, 0, 0, 0.4);
flex: 0 0 50px;
background: red;
transition: transform .25s;
}
.cardGreen {
height: 90px;
border: 1px solid black;
border-radius: 3px;
background-color: rgba(255, 0, 0, 0.4);
flex: 0 0 50px;
background: green;
transition: transform .25s;
}
#myProgress {
position: relative;
width: 100%;
height: 10px;
background-color: grey;
}
#myBar {
position: absolute;
width: 1%;
height: 100%;
background-color: green;
}
/* Create three unequal columns that floats next to each other */
.column {
float: left;
/*padding: 10px;*/
height: 300px; /* Should be removed. Only for demonstration */
}
.left, .right {
width: 20%;
}
.middle {
width: 60%;
}
/* Clear floats after the columns */
.row:after {
content: "";
display: table;
clear: both;
}
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<link rel="stylesheet" href="style.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
</head>
<body>
<header>
<h1>Simple game</h1>
</header>
<div class="row">
<div class="column left" style="background-color:#aaa;">
<div><button class="btn btn-default btn-block" id="play">Start Game</button></div>
<div><button class="btn btn-default btn-block" id="stop">Pause</button></div>
<div><button class="btn btn-default btn-block" id="moveCard">Move Card</button></div>
</div>
<div class="column middle" style="background-color:#bbb;">
<div class='cards middle' id="cards">
<!--<div class='cardGreen'></div>-->
</div>
<div id="myProgress">
<div id="myBar"></div>
</div>
</div>
<div class="column right" style="background-color:#ccc;">
<h2>Tutorial</h2>
<p>Will be here soon :)</p>
</div>
</div>
<script src="gamelogic.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</body>
</html>
Any hints or suggestions will come really in handy.

to add en element in the begining of the parent and not at the end, use prependinstead of append
parentEl.prepend(div);
The ParentNode.prepend method inserts a set of Node objects or DOMString objects >before the first child of the ParentNode.
this won't make the first card appear in the middle though, you're gonna have to rewok your positioning of the cards.
var parentEl = document.getElementById("cards");
var elem = document.getElementById("myBar");
var width;
var id;
var parentEl = document.getElementById("cards");
var elem = document.getElementById("myBar");
var lastCard;
var width;
var id;
function sortCards() {
var cards = document.getElementsByClassName("card"),
cw = parentEl.clientWidth,
sw = parentEl.scrollWidth,
diff = sw - cw,
offset = diff / (cards.length - 1);
for (var i = 0; i < cards.length; i++) {
i != 0 && (cards[i].style.transform = "translateX(-" + offset * i + "px)");
}
}
//Move card
document.getElementById("moveCard").addEventListener("click", function() {
myMove();
});
//Start the game
document.getElementById("play").addEventListener("click", function() {
move();
});
//Stop the game
document.getElementById("stop").addEventListener("click", function() {
stop();
});
function move() {
width = 1;
id = setInterval(frame, 5);
function frame() {
if (width >= 100) {
elem.style.width = 1 + '%';
clearInterval(id);
addCard();
move();
} else {
width++;
elem.style.width = width + '%';
}
}
}
function myMove() {
var elem = lastCard;
lastCard = lastCard.previousSibling;
var pos = 0;
var id = setInterval(movie, 5);
function movie() {
if (pos == 350) {
clearInterval(id);
elem.remove();
} else {
pos = pos + 5;
elem.style.top = pos + 'px';
elem.style.left = pos + 'px';
}
}
}
var i = 1;
function addCard() {
var div = document.createElement("div");
div.style.left = "auto";
div.innerHTML = i++;
div.style.position = "relative";
div.style.color = "green";
div.classList.add("card");
parentEl.prepend(div);
lastCard = div;
sortCards();
}
function stop() {
elem.style.width = 1 + '%';
clearInterval(id);
}
sortCards();
.cards {
display: flex;
max-width: 300px;
}
.card {
height: 90px;
border: 1px solid black;
border-radius: 3px;
background-color: rgba(255, 0, 0, 0.4);
flex: 0 0 50px;
background: red;
transition: transform .25s;
}
.cardGreen {
height: 90px;
border: 1px solid black;
border-radius: 3px;
background-color: rgba(255, 0, 0, 0.4);
flex: 0 0 50px;
background: green;
transition: transform .25s;
}
#myProgress {
position: relative;
width: 100%;
height: 10px;
background-color: grey;
}
#myBar {
position: absolute;
width: 1%;
height: 100%;
background-color: green;
}
/* Create three unequal columns that floats next to each other */
.column {
float: left;
/*padding: 10px;*/
height: 300px;
/* Should be removed. Only for demonstration */
}
.left,
.right {
width: 20%;
}
.middle {
width: 60%;
}
/* Clear floats after the columns */
.row:after {
content: "";
display: table;
clear: both;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.bundle.min.js"></script>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet"/>
<header>
<h1>Simple game</h1>
</header>
<div class="row">
<div class="column left" style="background-color:#aaa;">
<div><button class="btn btn-default btn-block" id="play">Start Game</button></div>
<div><button class="btn btn-default btn-block" id="stop">Pause</button></div>
<div><button class="btn btn-default btn-block" id="moveCard">Move Card</button></div>
</div>
<div class="column middle" style="background-color:#bbb;">
<div class='cards middle' id="cards">
<!--<div class='cardGreen'></div>-->
</div>
<div id="myProgress">
<div id="myBar"></div>
</div>
</div>
<div class="column right" style="background-color:#ccc;">
<h2>Tutorial</h2>
<p>Will be here soon :)</p>
</div>
</div>
EDIT :
to make the first car appear in the middle , make the parent's width 0% and make it grow every time you add a card until you reach 100%, and add margin:auto
var parentEl = document.getElementById("cards");
var elem = document.getElementById("myBar");
var width;
var id;
var parentEl = document.getElementById("cards");
var elem = document.getElementById("myBar");
var lastCard;
var width;
var id;
function sortCards() {
var cards = document.getElementsByClassName("card"),
cw = parentEl.clientWidth,
sw = parentEl.scrollWidth,
diff = sw - cw,
offset = diff / (cards.length - 1);
for (var i = 0; i < cards.length; i++) {
i != 0 && (cards[i].style.transform = "translateX(-" + offset * i + "px)");
}
}
//Move card
document.getElementById("moveCard").addEventListener("click", function() {
myMove();
});
//Start the game
document.getElementById("play").addEventListener("click", function() {
move();
});
//Stop the game
document.getElementById("stop").addEventListener("click", function() {
stop();
});
function move() {
width = 1;
id = setInterval(frame, 5);
function frame() {
if (width >= 100) {
elem.style.width = 1 + '%';
clearInterval(id);
addCard();
move();
} else {
width++;
elem.style.width = width + '%';
}
}
}
function myMove() {
var elem = lastCard;
lastCard = lastCard.previousSibling;
var pos = 0;
var id = setInterval(movie, 5);
function movie() {
if (pos == 350) {
clearInterval(id);
elem.remove();
} else {
pos = pos + 5;
elem.style.top = pos + 'px';
elem.style.left = pos + 'px';
}
}
}
var i = 1;
function addCard() {
var div = document.createElement("div");
div.style.left = "auto";
div.innerHTML = i++;
div.style.position = "relative";
div.style.color = "green";
div.classList.add("card");
if (parseInt(parentEl.style.width) < 100)
parentEl.style.width = (parseInt(parentEl.style.width) + 10) + '%';
parentEl.prepend(div);
lastCard = div;
sortCards();
}
function stop() {
elem.style.width = 1 + '%';
clearInterval(id);
}
sortCards();
.cards {
display: flex;
max-width: 300px;
}
.card {
height: 90px;
border: 1px solid black;
border-radius: 3px;
background-color: rgba(255, 0, 0, 0.4);
flex: 0 0 50px;
background: red;
transition: transform .25s;
}
.cardGreen {
height: 90px;
border: 1px solid black;
border-radius: 3px;
background-color: rgba(255, 0, 0, 0.4);
flex: 0 0 50px;
background: green;
transition: transform .25s;
}
#myProgress {
position: relative;
width: 100%;
height: 10px;
background-color: grey;
}
#myBar {
position: absolute;
width: 1%;
height: 100%;
background-color: green;
}
/* Create three unequal columns that floats next to each other */
.column {
float: left;
/*padding: 10px;*/
height: 300px;
/* Should be removed. Only for demonstration */
}
.left,
.right {
width: 20%;
}
#cards {
width: 15%;
margin: auto;
}
.middle {
width: 60%;
}
/* Clear floats after the columns */
.row:after {
content: "";
display: table;
clear: both;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.bundle.min.js"></script>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet" />
<header>
<h1>Simple game</h1>
</header>
<div class="row">
<div class="column left" style="background-color:#aaa;">
<div><button class="btn btn-default btn-block" id="play">Start Game</button></div>
<div><button class="btn btn-default btn-block" id="stop">Pause</button></div>
<div><button class="btn btn-default btn-block" id="moveCard">Move Card</button></div>
</div>
<div class="column middle" style="background-color:#bbb;">
<div class='cards middle' id="cards" style="width:0%">
<!--<div class='cardGreen'></div>-->
</div>
<div id="myProgress">
<div id="myBar"></div>
</div>
</div>
<div class="column right" style="background-color:#ccc;">
<h2>Tutorial</h2>
<p>Will be here soon :)</p>
</div>
</div>

Fixing the right button of a vanilla Javascript carousel

Against all reason, I'm trying to create a vanilla JavaScript carousel.
I am having two problems:
1. The images move left at widths of -680px as they should but when I tried to create the same function for the right button, the left value goes to 1370px making the picture off the screen.
2. I would like for it to slide left rather jump left (same for right), I managed to get it to do this but it doesn't work on the first slide, only from the second slide.
Here is the HTML code just for the carousel:
<div id = "container">
<div id = "carousel">
<div class = "slide"><img class = "slideImage" class = "active" src = "sithCover.png"></div>
<div class = "slide"><img class = "slideImage" src = "darthVader.png"></div>
<div class = "slide"><img class = "slideImage" src = "darthSidious.png"></div>
<div class = "slide"><img class = "slideImage" src = "kyloRen.png"></div>
</div>
</div>
<div id = "left" class = "button"></div>
<div id = "right" class = "button"></div>
Here is the CSS code:
#container {
position: absolute;
top: 200px;
left: 100px;
width: 680px;
height: 360px;
white-space: nowrap;
overflow:hidden;
}
#carousel {
position: absolute;
width: 2740px;
height: 360px;
white-space: nowrap;
overflow: hidden;
transition: left 300ms linear;
}
.slide {
display: inline-block;
height: 360px;
width: 680px;
padding: 0;
margin: 0;
transition: left 300ms linear;
}
.slideImage {
position:relative;
height: 360px;
width: 680px;
float: left;
}
.button {
position: absolute;
top: 340px;
height: 60px;
width: 60px;
border-bottom: 12px solid red;
}
#left {
left: 115px;
border-left: 12px solid red;
transform: rotate(45deg);
}
#right {
left: 693px;
border-right: 12px solid red;
transform: rotate(-45deg);
}
Here is the JavaScript:
var carousel = document.querySelector('#carousel');
var firstVal = 0;
document.querySelector('#left').addEventListener("click", moveLeft);
function moveLeft (){
firstVal +=685;
carousel.style.left = "-"+firstVal+"px";
};
document.querySelector('#right').addEventListener("click", moveRight);
function moveRight() {
firstVal +=685;
carousel.style.left = "+"+firstVal+"px";
};
Here is a JSFiddle so that you can see what I mean:
"https://jsfiddle.net/way81/8to1kkyj/"
I appreciate your time in reading my question and any help would be much appreciated.

Ofcourse it goes from -685px on left click and then to +1370pxthe next right click; You are always adding 685 to your firstVal variable.
firstVal = 0
//firstVal is worth 0
moveLeft()
//firstVal is now worth 685
moveRight()
//firstVal is now worth 1370.
The problem is that when you apply the firstVal to your CSS thing in the javascript, you create a string to get your negative value (where you apply the "-" sign infront of firstVal)
Instead, write them like this
function moveLeft (){
firstVal -=685; //note we now subtract, the "-" should appear when the number becomes negative
carousel.style.left = firstVal + "px";
};
function moveRight() {
firstVal +=685;
carousel.style.left = firstVal + "px";
};

var left = document.getElementById("left");
left.addEventListener("click", moveLeft, false);
var right = document.getElementById("right");
right.addEventListener("click", moveRight, false);
var carousel = document.getElementById("carousel");
var images = document.getElementsByTagName("img");
var position = 0;
var interval = 685;
var minPos = ("-" + interval) * images.length;
var maxPos = interval * images.length;
//slide image to the left side <--
function moveRight() {
if (position > (minPos + interval)) {
position -= interval;
carousel.style.left = position + "px";
}
if (position === (minPos + interval)) {
right.style.display = "none";
}
left.style.display = "block";
}
//slide image to the right side -->
function moveLeft() {
if (position < (maxPos - interval) && position < 0) {
position += interval;
carousel.style.left = position + "px";
}
if (position === 0) {
left.style.display = "none";
}
right.style.display = "block";
}
#container {
position: absolute;
top: 200px;
left: 100px;
width: 680px;
height: 360px;
white-space: nowrap;
overflow: hidden;
}
#carousel {
position: absolute;
width: 2740px;
height: 360px;
white-space: nowrap;
overflow: hidden;
transition: left 300ms linear;
}
.slide {
display: inline-block;
height: 360px;
width: 680px;
padding: 0;
margin: 0;
transition: left 300ms linear;
}
.slideImage {
position: relative;
height: 360px;
width: 680px;
float: left;
}
.button {
position: absolute;
top: 340px;
height: 60px;
width: 60px;
border-bottom: 12px solid red;
}
#left {
left: 115px;
border-left: 12px solid red;
transform: rotate(45deg);
display: none;
}
#right {
left: 693px;
border-right: 12px solid red;
transform: rotate(-45deg);
}
<div id="container">
<div id="carousel">
<div class="slide">
<img class="slideImage" class="active" src="sithCover.png" alt="slide1">
</div>
<div class="slide">
<img class="slideImage" src="darthVader.png" alt="slide2">
</div>
<div class="slide">
<img class="slideImage" src="darthSidious.png" alt="slide3">
</div>
<div class="slide">
<img class="slideImage" src="kyloRen.png" alt="slide4">
</div>
</div>
</div>
<div id="left" class="button"></div>
<div id="right" class="button"></div>

creating custom scroll bar

I want to create a custom scrollbar using just pure JavaScript and I'm having problem with making the pointer to reach the end of the scrollbar when I reach the bottom of the page. Is there any way to do that without using jQuery?
Demo on Fiddle
HTML:
<div id="scroll-bar"></div>
<div id="pointer"></div>
<div class="test">first</div>
<div class="test"></div>
<div class="test"></div>
<div class="test">middle</div>
<div class="test"></div>
<div class="test"></div>
<div class="test">final</div>
JavaScript:
var body = document.getElementsByTagName('body')[0];
var allDivs = document.getElementsByTagName('div');
var scrollBar = document.getElementById("scroll-bar");
var pointer = document.getElementById("pointer");
for (var i = 0; allDivs[i] != undefined; i++) {
var last = i;
}
var pageHeight = allDivs[last].offsetHeight + allDivs[last].offsetTop;
pointer.style.top = "7%";
function setPosition(e) {
var pos = e.screenY * 86;
var move = pos / scrollBar.offsetHeight - 10;
if (move > 7 && move < 89) {
pointer.style.top = move + "%";
}
var scrollValue = move * pageHeight / 100;
window.scrollTo(0, scrollValue);
}
function resetPosition() {
scrollBar.removeEventListener('mousemove', setPosition);
pointer.removeEventListener('mousemove', setPosition);
}
scrollBar.addEventListener('mousedown', function (event) {
pointer.addEventListener('mousemove', setPosition);
pointer.addEventListener('mouseup', resetPosition);
scrollBar.addEventListener('mousemove', setPosition);
scrollBar.addEventListener('mouseup', resetPosition);
});
scrollBar.addEventListener('click', function (event) {
setPosition(event);
});
pointer.addEventListener('mousedown', function (event) {
pointer.addEventListener('mousemove', setPosition);
pointer.addEventListener('mouseup', resetPosition);
scrollBar.addEventListener('mousemove', setPosition);
scrollBar.addEventListener('mouseup', resetPosition);
});
body.addEventListener("mousewheel", function () {
scrollBy(0, -window.event.wheelDelta);
});
body.addEventListener("DOMMouseScroll", function (e) {
scrollBy(0, e.detail * 50);
});
CSS:
html {
overflow: hidden;
}
.test {
height: 100px;
border-style: groove;
border-width: 10px;
border-color: red;
}
#scroll-bar {
position: fixed;
right: 0%;
top: 7%;
width: 3%;
height: 86%;
background-color: red;
}
#pointer {
position: fixed;
right: 0.5%;
top: 7%;
width: 2%;
height: 4%;
background-color: blue;
z-index: 3;
}