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How to make the slider width change when Resize. JavaScript?

When I change the width of the page it does not stretch in width. Sorry for my English. #How to make the slider width change when Resize.# For some reason, it remembers the first width.
Resize width and transform Please help me. I want to change the width of the screen and have the slider adjust to the width. This code is in pure Javascript. Who can help. I've been racking my head for 3 days, I'm just a beginner.
(function() {
let curTranslateX = 0;
let curPageNum = 0;
let dots = null;
let slideWidth = 0;
let duration = 300;
let pointStart, pointMove, pointEnd;
let slidePositions = [];
let isAutoLoop = false;
let hasArrow = true;
let scrollbar = {
el: '.slide-navbar',
isHide: true,
canClick: true
};
let slideContainer = document.querySelector('.container_slider');
let slideWrapper = slideContainer.querySelector('.slide_wrapper');
let slideItems = [...slideWrapper.querySelectorAll('.slide-item')];
const utils = {
hasClass: function(elem, className) {
return(new RegExp('(\\s|^)' + className + '(\\s|$)')).test(elem.className);
},
addClass: function(elem, className) {
if(!arguments.length) {
return;
}
if(typeof className === 'undefined' || this.hasClass(elem, className)) {
return;
}
let newClasses = elem.className.split(' ');
newClasses.push(className);
elem.className = newClasses.join(' ');
},
removeClass: function(elem, className) {
if(!arguments.length) {
return;
}
if(typeof className === 'undefined' || !this.hasClass(elem, className)) {
return;
}
let classes = elem.className.split(' ');
classes = classes.filter(cls => cls !== className);
elem.className = classes.join(' ');
},
isMobile: function() {
return(/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i).test(navigator.userAgent);
}
}
var slide = {
init: (function() {
document.addEventListener('DOMContentLoaded', function() {
dots = [...document.querySelectorAll('.slide-navbar span')];
dots.forEach(dot => {
utils.addClass(dot, 'dot');
});
if(utils.isMobile()) {
pointStart = 'touchstart';
pointMove = 'touchmove';
pointEnd = 'touchend';
} else {
pointStart = 'pointerdown';
pointMove = 'pointermove';
pointEnd = 'pointerup';
}
slide.bindTouchEvent();
slide.setCurrentPage();
}.bind(slide), false);
})(),
setTranslate: function(duration, offsetX, ...yz) {
this.style = `transition-duration: ${duration}ms; transform: translate3d(${offsetX}px, 0px, 0px);`;
curTranslateX = offsetX;
},
setCurrentPage: function(num) {
if(curPageNum !== -1) {
utils.removeClass(dots[curPageNum], 'dot-active');
utils.removeClass(slideItems[curPageNum], 'slide-active');
}
num = (typeof num === 'undefined') ? 0 : num;
curPageNum = num;
utils.addClass(dots[curPageNum], 'dot-active');
utils.addClass(slideItems[curPageNum], 'slide-active');
},
gotoPage: function(num) {
if(num < 0 || num > dots.length - 1) {
return;
}
slide.setTranslate.call(slideWrapper, duration, slidePositions[num]);
setTimeout(() => {
slide.setCurrentPage(num);
}, duration / 2);
},
bindTouchEvent: function() {
slideWidth = slideItems[0].scrollWidth;
slideContainer.style.width = `${slideWidth}px`;
let negMaxWidth = -slideWidth * (slideItems.length - 1);
for(let i = 0, wtd = 0; i < slideItems.length; i++, wtd -= slideWidth) {
slidePositions.push(wtd);
}
let startX,
startY,
initialPos = 0,
moveDist = 0,
direction = 0,
isMove = false,
startT = 0,
isPointOut = true;
slideContainer.addEventListener(pointStart, function(e) {
e.preventDefault();
if(!isPointOut && e.touches.length !== 1) {
return;
}
let startPoint = e.touches[0];
startX = startPoint.pageX;
startY = startPoint.pageY;
initialPos = curTranslateX;
startT = +new Date();
isMove = false;
isPointOut = false;
}.bind(this), false);
slideContainer.addEventListener(pointMove, function(e) {
if(isPointOut) {
return
}
let movePoint = e.touches[0];
let deltaX = movePoint.pageX - startX;
let deltaY = movePoint.pageY - startY;
let offsetX = initialPos + deltaX;
if(offsetX > 0 || offsetX < negMaxWidth) {
offsetX -= (deltaX / 2);
}
this.setTranslate.call(slideWrapper, 0, offsetX);
isMove = true;
deltaX = offsetX - initialPos;
moveDist = deltaX;
direction = deltaX > 0 ? 0 : 1;
}.bind(this), false);
slideContainer.addEventListener(pointEnd, function(e) {
e.preventDefault();
let deltaT = +new Date() - startT;
if(!isMove) {
if(utils.hasClass(e.target, 'slide-button-prev')) {
if(curPageNum === 0) {
return;
}
slide.gotoPage.call(e.target, curPageNum - 1);
} else if(utils.hasClass(e.target, 'slide-button-next')) {
if(curPageNum === dots.length - 1) {
return;
}
slide.gotoPage.call(e.target, curPageNum + 1);
}
return;
}
if(isPointOut) {
return;
}
isPointOut = true;
if(deltaT < 300 || Math.abs(moveDist) > slideWidth / 2) {
offsetX = direction === 0 ? curTranslateX + slideWidth - moveDist : curTranslateX - slideWidth - moveDist;
offsetX = offsetX > 0 ? 0 : offsetX;
offsetX = offsetX < negMaxWidth ? negMaxWidth : offsetX;
} else {
offsetX = curTranslateX - moveDist;
}
slide.setTranslate.call(slideWrapper, duration, offsetX);
let newPageNum = Math.round(Math.abs(offsetX) / slideWidth);
setTimeout(() => {
this.setCurrentPage(newPageNum);
}, duration / 2);
}.bind(this), false);
},
};
})();
.container_box {
max-width: 1400px;
margin: 0 auto;
}
.container_slider {
position: relative;
overflow: hidden;
}
.slide_wrapper {
position: relative;
z-index: 1;
display: flex;
transition-property: transform;
}
.container_slider .slide-item {
z-index: 1;
display: flex;
flex-shrink: 0;
width: 100%;
height: 300px;
user-select: none;
background-size: cover;
background-position: 50%;
background-repeat: no-repeat;
}
.slide-navbar {
position: absolute;
right: 0;
left: 0;
bottom: 0;
text-align: center;
font-size: 0;
z-index: 2;
}
.dot {
display: inline-block;
margin: 0 4px;
width: 8px;
height: 8px;
border-radius: 50%;
background-color: rgba(255, 255, 255, 0.5);
}
.dot-active {
width: 20px;
border-radius: 6px;
background-color: rgba(233, 233, 233, .9);
}
.slide-button-prev,
.slide-button-next {
display: inline-block;
position: absolute;
top: 50%;
width: 40px;
height: 60px;
z-index: 2;
color: rgba(233, 233, 233, .9);
text-align: center;
font-weight: 500;
}
.slide-button-prev {
left: 0;
transform: translateY(-50%);
}
.slide-button-next {
right: 0;
transform: translateY(-50%);
}
<div class="container_box">
<div class="container_slider">
<div class="slide_wrapper">
<div class="slide-item slide-active" style="background-color:green;"></div>
<div class="slide-item" style="background-color:blue;"></div>
<div class="slide-item" style="background-color:black;"></div>
</div>
<div class="control_slider slide-button-prev"><</div>
<div class="control_slider slide-button-next">></div>
<div class="slide-navbar">
<span class="dot dot-active">1</span>
<span class="dot">2</span>
<span class="dot">3</span>
</div>
</div>
</div>

First: I replaced the < and > by > and <:
<div class="control_slider slide-button-prev"><</div>
<div class="control_slider slide-button-next">></div>
To your question:
I found out that in bindTouchEvent: function() {}
exists the line
slideContainer.style.width = ${slideWidth}px;
This line is in charge to set a fix width. If you comment out this line all single slide-items reacts on resize.

Configure Javascript Range Slider

I have a very simple range slider here: https://jsfiddle.net/dv45kseb/
I'd like to be able to dynamically display 50% of the slider value in the <h3> but I'm not sure to start.
//slider javascript
/*! rangeslider.js - v2.0.2 | (c) 2015 #andreruffert | MIT license | https://github.com/andreruffert/rangeslider.js */
! function(a) {
"use strict";
"function" == typeof define && define.amd ? define(["jquery"], a) : a("object" == typeof exports ? require("jquery") : jQuery)
}(function(a) {
"use strict";
function b() {
var a = document.createElement("input");
return a.setAttribute("type", "range"), "text" !== a.type
}
function c(a, b) {
var c = Array.prototype.slice.call(arguments, 2);
return setTimeout(function() {
return a.apply(null, c)
}, b)
}
function d(a, b) {
return b = b || 100,
function() {
if (!a.debouncing) {
var c = Array.prototype.slice.apply(arguments);
a.lastReturnVal = a.apply(window, c), a.debouncing = !0
}
return clearTimeout(a.debounceTimeout), a.debounceTimeout = setTimeout(function() {
a.debouncing = !1
}, b), a.lastReturnVal
}
}
function e(a) {
return a && (0 === a.offsetWidth || 0 === a.offsetHeight || a.open === !1)
}
function f(a) {
for (var b = [], c = a.parentNode; e(c);) b.push(c), c = c.parentNode;
return b
}
function g(a, b) {
function c(a) {
"undefined" != typeof a.open && (a.open = a.open ? !1 : !0)
}
var d = f(a),
e = d.length,
g = [],
h = a[b];
if (e) {
for (var i = 0; e > i; i++) g[i] = d[i].style.cssText, d[i].style.display = "block", d[i].style.height = "0", d[i].style.overflow = "hidden", d[i].style.visibility = "hidden", c(d[i]);
h = a[b];
for (var j = 0; e > j; j++) d[j].style.cssText = g[j], c(d[j])
}
return h
}
function h(a, b) {
var c = parseFloat(a);
return Number.isNaN(c) ? b : c
}
function i(a) {
return a.charAt(0).toUpperCase() + a.substr(1)
}
function j(b, e) {
if (this.$window = a(window), this.$document = a(document), this.$element = a(b), this.options = a.extend({}, n, e), this.polyfill = this.options.polyfill, this.orientation = this.$element[0].getAttribute("data-orientation") || this.options.orientation, this.onInit = this.options.onInit, this.onSlide = this.options.onSlide, this.onSlideEnd = this.options.onSlideEnd, this.DIMENSION = o.orientation[this.orientation].dimension, this.DIRECTION = o.orientation[this.orientation].direction, this.DIRECTION_STYLE = o.orientation[this.orientation].directionStyle, this.COORDINATE = o.orientation[this.orientation].coordinate, this.polyfill && m) return !1;
this.identifier = "js-" + k + "-" + l++, this.startEvent = this.options.startEvent.join("." + this.identifier + " ") + "." + this.identifier, this.moveEvent = this.options.moveEvent.join("." + this.identifier + " ") + "." + this.identifier, this.endEvent = this.options.endEvent.join("." + this.identifier + " ") + "." + this.identifier, this.toFixed = (this.step + "").replace(".", "").length - 1, this.$fill = a('<div class="' + this.options.fillClass + '" />'), this.$handle = a('<div class="' + this.options.handleClass + '" />'), this.$range = a('<div class="' + this.options.rangeClass + " " + this.options[this.orientation + "Class"] + '" id="' + this.identifier + '" />').insertAfter(this.$element).prepend(this.$fill, this.$handle), this.$element.css({
position: "absolute",
width: "1px",
height: "1px",
overflow: "hidden",
opacity: "0"
}), this.handleDown = a.proxy(this.handleDown, this), this.handleMove = a.proxy(this.handleMove, this), this.handleEnd = a.proxy(this.handleEnd, this), this.init();
var f = this;
this.$window.on("resize." + this.identifier, d(function() {
c(function() {
f.update()
}, 300)
}, 20)), this.$document.on(this.startEvent, "#" + this.identifier + ":not(." + this.options.disabledClass + ")", this.handleDown), this.$element.on("change." + this.identifier, function(a, b) {
if (!b || b.origin !== f.identifier) {
var c = a.target.value,
d = f.getPositionFromValue(c);
f.setPosition(d)
}
})
}
Number.isNaN = Number.isNaN || function(a) {
return "number" == typeof a && a !== a
};
var k = "rangeslider",
l = 0,
m = b(),
n = {
polyfill: !0,
orientation: "horizontal",
rangeClass: "rangeslider",
disabledClass: "rangeslider--disabled",
horizontalClass: "rangeslider--horizontal",
verticalClass: "rangeslider--vertical",
fillClass: "rangeslider__fill",
handleClass: "rangeslider__handle",
startEvent: ["mousedown", "touchstart", "pointerdown"],
moveEvent: ["mousemove", "touchmove", "pointermove"],
endEvent: ["mouseup", "touchend", "pointerup"]
},
o = {
orientation: {
horizontal: {
dimension: "width",
direction: "left",
directionStyle: "left",
coordinate: "x"
},
vertical: {
dimension: "height",
direction: "top",
directionStyle: "bottom",
coordinate: "y"
}
}
};
j.prototype.init = function() {
this.update(!0, !1), this.$element[0].value = this.value, this.onInit && "function" == typeof this.onInit && this.onInit()
}, j.prototype.update = function(a, b) {
a = a || !1, a && (this.min = h(this.$element[0].getAttribute("min"), 0), this.max = h(this.$element[0].getAttribute("max"), 100), this.value = h(this.$element[0].value, this.min + (this.max - this.min) / 2), this.step = h(this.$element[0].getAttribute("step"), 1)), this.handleDimension = g(this.$handle[0], "offset" + i(this.DIMENSION)), this.rangeDimension = g(this.$range[0], "offset" + i(this.DIMENSION)), this.maxHandlePos = this.rangeDimension - this.handleDimension, this.grabPos = this.handleDimension / 2, this.position = this.getPositionFromValue(this.value), this.$element[0].disabled ? this.$range.addClass(this.options.disabledClass) : this.$range.removeClass(this.options.disabledClass), this.setPosition(this.position, b)
}, j.prototype.handleDown = function(a) {
if (a.preventDefault(), this.$document.on(this.moveEvent, this.handleMove), this.$document.on(this.endEvent, this.handleEnd), !((" " + a.target.className + " ").replace(/[\n\t]/g, " ").indexOf(this.options.handleClass) > -1)) {
var b = this.getRelativePosition(a),
c = this.$range[0].getBoundingClientRect()[this.DIRECTION],
d = this.getPositionFromNode(this.$handle[0]) - c,
e = "vertical" === this.orientation ? this.maxHandlePos - (b - this.grabPos) : b - this.grabPos;
this.setPosition(e), b >= d && b < d + this.handleDimension && (this.grabPos = b - d)
}
}, j.prototype.handleMove = function(a) {
a.preventDefault();
var b = this.getRelativePosition(a),
c = "vertical" === this.orientation ? this.maxHandlePos - (b - this.grabPos) : b - this.grabPos;
this.setPosition(c)
}, j.prototype.handleEnd = function(a) {
a.preventDefault(), this.$document.off(this.moveEvent, this.handleMove), this.$document.off(this.endEvent, this.handleEnd), this.$element.trigger("change", {
origin: this.identifier
}), this.onSlideEnd && "function" == typeof this.onSlideEnd && this.onSlideEnd(this.position, this.value)
}, j.prototype.cap = function(a, b, c) {
return b > a ? b : a > c ? c : a
}, j.prototype.setPosition = function(a, b) {
var c, d;
void 0 === b && (b = !0), c = this.getValueFromPosition(this.cap(a, 0, this.maxHandlePos)), d = this.getPositionFromValue(c), this.$fill[0].style[this.DIMENSION] = d + this.grabPos + "px", this.$handle[0].style[this.DIRECTION_STYLE] = d + "px", this.setValue(c), this.position = d, this.value = c, b && this.onSlide && "function" == typeof this.onSlide && this.onSlide(d, c)
}, j.prototype.getPositionFromNode = function(a) {
for (var b = 0; null !== a;) b += a.offsetLeft, a = a.offsetParent;
return b
}, j.prototype.getRelativePosition = function(a) {
var b = i(this.COORDINATE),
c = this.$range[0].getBoundingClientRect()[this.DIRECTION],
d = 0;
return "undefined" != typeof a["page" + b] ? d = a["client" + b] : "undefined" != typeof a.originalEvent["client" + b] ? d = a.originalEvent["client" + b] : a.originalEvent.touches && a.originalEvent.touches[0] && "undefined" != typeof a.originalEvent.touches[0]["client" + b] ? d = a.originalEvent.touches[0]["client" + b] : a.currentPoint && "undefined" != typeof a.currentPoint[this.COORDINATE] && (d = a.currentPoint[this.COORDINATE]), d - c
}, j.prototype.getPositionFromValue = function(a) {
var b, c;
return b = (a - this.min) / (this.max - this.min), c = Number.isNaN(b) ? 0 : b * this.maxHandlePos
}, j.prototype.getValueFromPosition = function(a) {
var b, c;
return b = a / (this.maxHandlePos || 1), c = this.step * Math.round(b * (this.max - this.min) / this.step) + this.min, Number(c.toFixed(this.toFixed))
}, j.prototype.setValue = function(a) {
a !== this.value && this.$element.val(a).trigger("input", {
origin: this.identifier
})
}, j.prototype.destroy = function() {
this.$document.off("." + this.identifier), this.$window.off("." + this.identifier), this.$element.off("." + this.identifier).removeAttr("style").removeData("plugin_" + k), this.$range && this.$range.length && this.$range[0].parentNode.removeChild(this.$range[0])
}, a.fn[k] = function(b) {
var c = Array.prototype.slice.call(arguments, 1);
return this.each(function() {
var d = a(this),
e = d.data("plugin_" + k);
e || d.data("plugin_" + k, e = new j(this, b)), "string" == typeof b && e[b].apply(e, c)
})
}
});
//custom slider javascript
$(function() {
var output = document.querySelectorAll('output')[0];
$(document).on('input', 'input[type="range"]', function(e) {
output.innerHTML = e.currentTarget.value;
});
$('input[type=range]').rangeslider({
polyfill: false
});
});
//when slider changes, hide start message
$("input").on("change", function() {
$("small").fadeOut("slow");
})
body {
color: #404040;
padding: 50px;
max-width: 500px;
margin: 0 auto;
text-align: center;
font-family: sans-serif;
}
h1 {
font-weight: 300;
}
#helper {
float: left;
margin-top: 20px;
color: #46b7d5;
font-style: italic;
}
output {
display: block;
font-size: 3em;
}
/* original css */
.rangeslider,
.rangeslider__fill {
display: block;
-moz-box-shadow: inset 0px 1px 3px rgba(0, 0, 0, 0.3);
-webkit-box-shadow: inset 0px 1px 3px rgba(0, 0, 0, 0.3);
box-shadow: inset 0px 1px 3px rgba(0, 0, 0, 0.3);
-moz-border-radius: 10px;
-webkit-border-radius: 10px;
border-radius: 10px;
}
.rangeslider {
background: #e6e6e6;
position: relative;
}
.rangeslider--horizontal {
height: 20px;
width: 100%;
}
.rangeslider--vertical {
width: 20px;
min-height: 150px;
max-height: 100%;
}
.rangeslider--disabled {
filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=40);
opacity: 0.4;
}
.rangeslider__fill {
background: -webkit-linear-gradient(left, #abe0ed, #46b7d5);
/* For Safari 5.1 to 6.0 */
background: -o-linear-gradient(right, #abe0ed, #46b7d5);
/* For Opera 11.1 to 12.0 */
background: -moz-linear-gradient(right, #abe0ed, #46b7d5);
/* For Firefox 3.6 to 15 */
background: linear-gradient(to right, #abe0ed, #46b7d5);
/* Standard syntax (must be last) */
position: absolute;
}
.rangeslider--horizontal .rangeslider__fill {
top: 0;
height: 100%;
}
.rangeslider--vertical .rangeslider__fill {
bottom: 0;
width: 100%;
}
.rangeslider__handle {
background: white;
border: 1px solid #ccc;
cursor: pointer;
display: inline-block;
width: 40px;
height: 40px;
position: absolute;
background-image: url("data:image/svg+xml;base64,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");
background-size: 100%;
background-image: -webkit-gradient(linear, 50% 0%, 50% 100%, color-stop(0%, rgba(255, 255, 255, 0)), color-stop(100%, rgba(0, 0, 0, 0.1)));
background-image: -moz-linear-gradient(rgba(255, 255, 255, 0), rgba(0, 0, 0, 0.1));
background-image: -webkit-linear-gradient(rgba(255, 255, 255, 0), rgba(0, 0, 0, 0.1));
background-image: linear-gradient(rgba(255, 255, 255, 0), rgba(0, 0, 0, 0.1));
-moz-box-shadow: 0 0 8px rgba(0, 0, 0, 0.3);
-webkit-box-shadow: 0 0 8px rgba(0, 0, 0, 0.3);
box-shadow: 0 0 8px rgba(0, 0, 0, 0.3);
-moz-border-radius: 50%;
-webkit-border-radius: 50%;
border-radius: 50%;
}
.rangeslider__handle:after {
content: "";
display: block;
width: 18px;
height: 18px;
margin: auto;
position: absolute;
top: 0;
right: 0;
bottom: 0;
left: 0;
background-image: url("data:image/svg+xml;base64,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");
background-size: 100%;
background-image: -webkit-gradient(linear, 50% 0%, 50% 100%, color-stop(0%, rgba(0, 0, 0, 0.13)), color-stop(100%, rgba(255, 255, 255, 0)));
background-image: -moz-linear-gradient(rgba(0, 0, 0, 0.13), rgba(255, 255, 255, 0));
background-image: -webkit-linear-gradient(rgba(0, 0, 0, 0.13), rgba(255, 255, 255, 0));
background-image: linear-gradient(rgba(0, 0, 0, 0.13), rgba(255, 255, 255, 0));
-moz-border-radius: 50%;
-webkit-border-radius: 50%;
border-radius: 50%;
}
.rangeslider__handle:active {
background-image: url("data:image/svg+xml;base64,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");
background-size: 100%;
background-image: -webkit-gradient(linear, 50% 0%, 50% 100%, color-stop(0%, rgba(0, 0, 0, 0.1)), color-stop(100%, rgba(0, 0, 0, 0.12)));
background-image: -moz-linear-gradient(rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.12));
background-image: -webkit-linear-gradient(rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.12));
background-image: linear-gradient(rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.12));
}
.rangeslider--horizontal .rangeslider__handle {
top: -10px;
touch-action: pan-y;
-ms-touch-action: pan-y;
}
.rangeslider--vertical .rangeslider__handle {
left: -10px;
touch-action: pan-x;
-ms-touch-action: pan-x;
}
input[type="range"]:focus + .rangeslider .rangeslider__handle {
-moz-box-shadow: 0 0 8px rgba(255, 0, 255, 0.9);
-webkit-box-shadow: 0 0 8px rgba(255, 0, 255, 0.9);
box-shadow: 0 0 8px rgba(255, 0, 255, 0.9);
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<h1>
This form lets you drag the slider.
</h1>
<!--https://andreruffert.github.io/rangeslider.js/-->
<input type="range" value="3825" step="500" min="1000" max="40000">
<small id="helper" class="slideRight">Slide to get started →</small>
<br>
<br>
<h2 style="display: inline-block; margin-bottom: 50px;"></h2><output style="display: inline-block">3,825</output>
<h3>
<< Display 50% of total value here >>
</h3>

This part of the code is where the value in the header is modified:
$(document).on('input', 'input[type="range"]', function(e) {
output.innerHTML = e.currentTarget.value;
});
You just need to divide your the value like this:
output.innerHTML = e.currentTarget.value / 2;

To complete the answer - any time you need a value filled dynamically in a page by a javascript you can enclose it with a SPAN tag and an ID attribute (because IDs are unique). So:
<h3>
<span id="halfvalue"></span>
</h3>
and then you add additional code to your event handler code:
var output = document.querySelectorAll('output')[0];
var halfvalue = document.querySelector('#halfvalue');
$(document).on('input', 'input[type="range"]', function(e) {
output.innerHTML = e.currentTarget.value;
halfvalue.innerHTML = e.currentTarget.value / 2
});

Drag image within container, not moving with mouse, slightly quicker

I have got a Vue component where i can zoom in on an image and then move it around the container. When zoomed there is also a small viewport to show what part of the image is visible. However when moving the image around it is moving faster than the mouse, i'm guessing this is due to using the scale transform.
I also feel like when i'm clicking and dragging on the viewport I shouldn't be reversing the values twice however this seems to be the only way to get it moving the square with the mouse.
Vue.component('test', {
template: '#template',
data: function() {
return {
loading: true,
loop: true,
speed: 8,
speedController: 0,
zoomEnabled: true,
zoomLevels: [1, 1.5, 2, 2.5, 3],
zoomLevel: 1,
frame: 1,
images: [],
imagesPreloaded: 0,
reverse: false,
viewportScale: 0.3,
viewportEnabled: true,
viewportOpacity: 0.8,
lastX: 0,
lastY: 0,
startX: 0,
startY: 0,
translateX: 0,
translateY: 0,
isMoving: false,
isDragging: false,
};
},
mounted() {
window.addEventListener('mouseup', this.handleEnd);
window.addEventListener('touchend', this.handleEnd);
},
beforeDestroy() {
window.removeEventListener('mouseup', this.handleEnd);
window.removeEventListener('touchend', this.handleEnd);
},
methods: {
handleSlider(event) {
this.frame = Number(event.target.value);
},
zoom(direction) {
const closest = this.zoomLevels.reduce((a, b) => {
return Math.abs(b - this.zoomLevel) < Math.abs(a - this.zoomLevel) ? b : a;
});
if (this.zoomLevels[this.zoomLevels.indexOf(closest) + direction] === undefined) {
return;
}
let current = this.zoomLevels.indexOf(closest);
let index = current += direction;
if (direction === 0) {
index = 0;
}
this.zoomLevel = this.zoomLevels[index];
window.requestAnimationFrame(() => {
this.translate(null, this.$refs.image, true);
});
},
zoomWheel($event) {
$event.preventDefault();
this.zoomLevel += $event.deltaY * -0.01;
if (this.zoomLevel < 1) {
this.zoomLevel = 1;
}
let maxZoom = this.zoomLevels[this.zoomLevels.length - 1];
this.zoomLevel = Math.min(Math.max(.125, this.zoomLevel), maxZoom);
window.requestAnimationFrame(() => {
this.translate(null, this.$refs.image, true);
});
},
handleStart($event) {
$event.preventDefault();
if ($event.button && $event.button !== 0) {
return;
}
this.isMoving = true;
this.isDragging = true;
this.startX = $event.pageX || $event.touches[0].pageX;
this.startY = $event.pageY || $event.touches[0].pageY;
},
handleMove($event, viewport) {
if ($event.button && $event.button !== 0) {
return;
}
if (this.isMoving && this.isDragging) {
const positions = {
x: $event.pageX || $event.touches[0].pageX,
y: $event.pageY || $event.touches[0].pageY
}
if (this.zoomLevel !== 1) {
this.translate(positions, $event.target, null, viewport);
}
if (this.zoomLevel === 1) {
this.changeFrame(positions);
}
}
},
handleEnd($event) {
if ($event.button && $event.button !== 0) {
return;
}
this.isMoving = false;
},
translate(positions, element, zooming, viewport) {
if (positions === null) {
positions = {
x: this.startX,
y: this.startY
};
}
let move = {
x: Math.floor(positions.x - this.startX),
y: Math.floor(positions.y - this.startY)
};
// Reverse Mouse Movement
if (viewport) {
move.x = -move.x;
move.y = -move.y;
}
let image = element.getBoundingClientRect();
let container = element.parentNode.getBoundingClientRect();
let translate = {
left: Math.floor((container.left - image.left) - (move.x * this.zoomLevel)),
right: Math.floor((container.right - image.right) - (move.x * this.zoomLevel)),
top: Math.floor((container.top - image.top) - (move.y * this.zoomLevel)),
bottom: Math.floor((container.bottom - image.bottom) - (move.y * this.zoomLevel))
};
// Reverse Translate Movement
if (viewport) {
translate.left = -translate.left;
translate.right = -translate.right;
translate.top = -translate.top;
translate.bottom = -translate.bottom;
}
if (zooming) {
if (translate.left <= 0) {
this.translateX += Math.floor(translate.left);
}
if (translate.right >= 0) {
this.translateX += Math.floor(translate.right);
}
if (translate.top <= 0) {
this.translateY += Math.floor(translate.top);
}
if (translate.bottom >= 0) {
this.translateY += Math.floor(translate.bottom);
}
}
if (translate.left >= 0 && translate.right <= 0) {
this.translateX += Math.floor(move.x);
}
if (translate.top >= 0 && translate.bottom <= 0) {
this.translateY += Math.floor(move.y);
}
this.startX = positions.x;
this.startY = positions.y;
}
},
computed: {
nextZoomLevel: function() {
const closest = this.zoomLevels.reduce((a, b) => {
return Math.abs(b - this.zoomLevel) < Math.abs(a - this.zoomLevel) ? b : a;
});
if (this.zoomLevels.indexOf(closest) === this.zoomLevels.length - 1) {
return this.zoomLevels[0];
}
return this.zoomLevels[this.zoomLevels.indexOf(closest) + 1];
},
viewportTransform: function() {
if (this.viewportEnabled) {
let translateX = -((this.translateX * this.viewportScale) * this.zoomLevel);
let translateY = -((this.translateY * this.viewportScale) * this.zoomLevel);
return `scale(${1 / this.zoomLevel}) translateX(${translateX}px) translateY(${translateY}px)`;
}
},
transform: function() {
return `scale(${this.zoomLevel}) translateX(${this.translateX}px) translateY(${this.translateY}px)`;
},
canZoomIn: function() {
const closest = this.zoomLevels.reduce((a, b) => {
return Math.abs(b - this.zoomLevel) < Math.abs(a - this.zoomLevel) ? b : a;
});
return this.zoomLevels[this.zoomLevels.indexOf(closest) + 1] === undefined
},
canZoomOut: function() {
const closest = this.zoomLevels.reduce((a, b) => {
return Math.abs(b - this.zoomLevel) < Math.abs(a - this.zoomLevel) ? b : a;
});
return this.zoomLevels[this.zoomLevels.indexOf(closest) + -1] === undefined
}
}
});
window.vue = new Vue({el: '#app'});
.media-360-viewer {
position: relative;
overflow: hidden;
background: #000;
}
.media-360-viewer>img {
width: 100%;
}
.media-360-viewer>img.canTranslate {
cursor: grab;
}
.media-360-viewer>img.isTranslating {
cursor: grabbing;
}
.media-360-viewer>img.canRotate {
cursor: w-resize;
}
.media-360-viewer__loader {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: rgba(0, 0, 0, 0.5);
}
.media-360-viewer__loader * {
user-select: none;
}
.media-360-viewer__loader>svg {
width: 100%;
height: 100%;
transform: rotate(270deg);
}
.media-360-viewer__loader--text {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
display: flex;
justify-content: center;
align-items: center;
flex-direction: column;
}
.media-360-viewer__loader--text p {
font-size: 100%;
font-weight: bold;
color: #fff;
}
.media-360-viewer__loader--text p.large {
font-size: 150%;
}
.media-360-viewer__loader--background {
stroke-dasharray: 0;
stroke-dashoffset: 0;
stroke: rgba(0, 0, 0, 0.7);
stroke-width: 25px;
}
.media-360-viewer__loader--cover {
stroke-dasharray: 200%;
stroke: #848484;
stroke-width: 15px;
stroke-linecap: round;
}
.media-360-viewer__loader--background,
.media-360-viewer__loader--cover {
fill: transparent;
}
.media-360-viewer__viewport {
position: absolute;
top: 10px;
left: 10px;
z-index: 2;
border: 1px solid black;
overflow: hidden;
}
.media-360-viewer__viewport--image {
width: 100%;
pointer-events: none;
}
.media-360-viewer__viewport--zoom {
position: absolute;
bottom: 5px;
right: 5px;
color: #fff;
z-index: 3;
font-size: 12px;
pointer-events: none;
}
.media-360-viewer__viewport--square {
border: 1px solid black;
width: 100%;
height: 100%;
position: absolute;
top: 0;
left: 0;
box-shadow: rgba(0, 0, 0, 0.5) 0 0 0 10000px;
cursor: grab;
transition: background ease-in-out 0.1s;
}
.media-360-viewer__viewport--square:hover {
background: rgba(255, 255, 255, 0.2);
}
.media-360-viewer__header {
position: absolute;
top: 10px;
left: 0;
width: 100%;
}
.media-360-viewer__tools {
position: absolute;
bottom: 0;
left: 0;
width: 100%;
display: flex;
align-items: center;
justify-content: center;
padding-bottom: 10px;
}
.media-360-viewer__tools>a {
margin: 0 5px;
color: #000;
background: #fff;
border-radius: 50%;
width: 40px;
text-align: center;
line-height: 40px;
}
.media-360-viewer__tools>a[disabled] {
opacity: .5;
cursor: not-allowed;
}
.media-360-viewer__tools>a[disabled]:hover {
color: #000;
background: #fff;
}
.media-360-viewer__tools>a:hover {
background: #000;
color: #fff;
}
.media-360-viewer__tools--autoplay:before {
font-family: 'ClickIcons';
content: '\ea81';
}
.media-360-viewer__tools--autoplay.active:before {
content: '\eb48';
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>
<div id="app">
<test></test>
</div>
<script type="text/x-template" id="template">
<div class="media-360-viewer" ref="container">
<transition name="fade">
<div class="media-360-viewer__viewport" v-if="zoomLevel > 1 && viewportEnabled" :style="{ width: (viewportScale * 100) + '%' }">
<img tabindex="1" draggable="false" alt="Viewport" class="media-360-viewer__viewport--image" src="https://www.bennetts.co.uk/-/media/bikesocial/2019-september-images/2020-yamaha-yzf-r1-and-r1m-review/2020-yamaha-r1-and-r1m_005.ashx?h=493&w=740&la=en&hash=F97CD240F0DDFA9540E912DCF7F07019017035C6">
<span class="media-360-viewer__viewport--zoom">
x{{ Math.round(zoomLevel * 10) / 10 }}
</span>
<span :style="{ transform: viewportTransform }" #mouseup="handleEnd" #mousedown="handleStart" #mousemove="handleMove($event, true)" #touchstart="handleStart" #touchend="handleEnd" #touchmove="handleMove($event, true)" class="media-360-viewer__viewport--square"></span>
</div>
</transition>
<img tabindex="1" ref="image" draggable="false" src="https://www.bennetts.co.uk/-/media/bikesocial/2019-september-images/2020-yamaha-yzf-r1-and-r1m-review/2020-yamaha-r1-and-r1m_005.ashx?h=493&w=740&la=en&hash=F97CD240F0DDFA9540E912DCF7F07019017035C6" :style="{ transform: transform }" :class="{
canTranslate: zoomLevel > 1 && zoomEnabled,
canRotate: zoomLevel === 1,
isTranslating: zoomLevel > 1 && zoomEnabled && isMoving
}" #mouseup="handleEnd" #mousedown="handleStart" #mousemove="handleMove" #touchstart="handleStart" #touchend="handleEnd" #touchmove="handleMove" #dblclick="zoom" #wheel="zoomWheel" alt="360 Image" />
</div>
</script>
Does anyone know how I can fix this?
Edit
Below is the updated code with the changes suggested by the accepted answer, only issue now is the viewport square going out of frame.
Vue.component('test', {
template: '#template',
data: function() {
return {
loading: true,
loop: true,
speed: 8,
speedController: 0,
zoomEnabled: true,
zoomLevels: [1, 1.5, 2, 2.5, 3],
zoomLevel: 1,
frame: 1,
images: [],
imagesPreloaded: 0,
reverse: false,
viewportScale: 0.3,
viewportEnabled: true,
viewportOpacity: 0.8,
lastX: 0,
lastY: 0,
startX: 0,
startY: 0,
translateX: 0,
translateY: 0,
isMoving: false,
isDragging: false,
};
},
mounted() {
window.addEventListener('mouseup', this.handleEnd);
window.addEventListener('touchend', this.handleEnd);
},
beforeDestroy() {
window.removeEventListener('mouseup', this.handleEnd);
window.removeEventListener('touchend', this.handleEnd);
},
methods: {
zoom(direction) {
// todo: Load high res image based on zoom level
const closest = this.zoomLevels.reduce((a, b) => {
return Math.abs(b - this.zoomLevel) < Math.abs(a - this.zoomLevel) ? b : a;
});
if (this.zoomLevels[this.zoomLevels.indexOf(closest) + direction] === undefined) {
return;
}
let current = this.zoomLevels.indexOf(closest);
let index = current += direction;
if (direction === 0) {
index = 0;
}
this.zoomLevel = this.zoomLevels[index];
this.translate(null, this.$refs.image, true);
},
zoomWheel($event) {
$event.preventDefault();
this.zoomLevel += $event.deltaY * -0.01;
if (this.zoomLevel < 1) {
this.zoomLevel = 1;
}
let maxZoom = this.zoomLevels[this.zoomLevels.length - 1];
this.zoomLevel = Math.min(Math.max(.125, this.zoomLevel), maxZoom);
this.translate(null, this.$refs.image, true);
},
handleStart($event) {
$event.preventDefault();
if ($event.button && $event.button !== 0) {
return;
}
this.isMoving = true;
this.isDragging = true;
this.startX = $event.pageX || $event.touches[0].pageX;
this.startY = $event.pageY || $event.touches[0].pageY;
},
handleMove($event, viewport) {
if ($event.button && $event.button !== 0) {
return;
}
if (this.isMoving && this.isDragging) {
const positions = {
x: $event.pageX || $event.touches[0].pageX,
y: $event.pageY || $event.touches[0].pageY
}
if (this.zoomLevel !== 1) {
this.translate(positions, $event.target, null, viewport);
}
}
},
handleEnd($event) {
if ($event.button && $event.button !== 0) {
return;
}
this.isMoving = false;
},
translate(positions, element, zooming, viewport) {
window.requestAnimationFrame(() => {
positions = positions || {
x: this.startX,
y: this.startY
};
if (viewport) {
this._translateFromViewport(positions, element);
} else {
this._translateFromImage(positions, element, zooming);
}
this.startX = positions.x;
this.startY = positions.y;
});
},
_translateFromViewport: function(positions, element) {
let move = {
x: positions.x - this.startX,
y: positions.y - this.startY
};
let box = element.getBoundingClientRect();
let container = element.parentNode.getBoundingClientRect();
let translate = {
left: (container.left - box.left) - ((move.x * this.viewportScale) * this.zoomLevel),
right: (container.right - box.right) - ((move.x * this.viewportScale) * this.zoomLevel),
top: (container.top - box.top) - ((move.y * this.viewportScale) * this.zoomLevel),
bottom: (container.bottom - box.bottom) - ((move.y * this.viewportScale) * this.zoomLevel)
};
if (translate.left <= 0 && translate.right >= 0) {
this.translateX -= move.x / this.viewportScale;
}
if (translate.top <= 0 && translate.bottom >= 0) {
this.translateY -= move.y / this.viewportScale
}
},
_translateFromImage: function(positions, element, zooming) {
let move = {
x: Math.floor(positions.x - this.startX),
y: Math.floor(positions.y - this.startY)
};
let image = element.getBoundingClientRect();
let container = element.parentNode.getBoundingClientRect();
let translate = {
left: (container.left - image.left) - (move.x * this.zoomLevel),
right: (container.right - image.right) - (move.x * this.zoomLevel),
top: (container.top - image.top) - (move.y * this.zoomLevel),
bottom: (container.bottom - image.bottom) - (move.y * this.zoomLevel)
};
if (zooming) {
if (translate.left <= 0) {
this.translateX += translate.left;
}
if (translate.right >= 0) {
this.translateX += translate.right;
}
if (translate.top <= 0) {
this.translateY += translate.top;
}
if (translate.bottom >= 0) {
this.translateY += translate.bottom;
}
}
if (translate.left >= 0 && translate.right <= 0) {
this.translateX += move.x / this.zoomLevel;
}
if (translate.top >= 0 && translate.bottom <= 0) {
this.translateY += move.y / this.zoomLevel;
}
},
},
computed: {
preloadProgress: function() {
return Math.floor(this.imagesPreloaded / this.images.length * 100);
},
currentPath: function() {
return this.images[this.frame - 1];
},
nextZoomLevel: function() {
const closest = this.zoomLevels.reduce((a, b) => {
return Math.abs(b - this.zoomLevel) < Math.abs(a - this.zoomLevel) ? b : a;
});
if (this.zoomLevels.indexOf(closest) === this.zoomLevels.length - 1) {
return this.zoomLevels[0];
}
return this.zoomLevels[this.zoomLevels.indexOf(closest) + 1];
},
viewportTransform: function() {
if (this.viewportEnabled) {
let translateX = -((this.translateX * this.viewportScale) * this.zoomLevel);
let translateY = -((this.translateY * this.viewportScale) * this.zoomLevel);
return `scale(${1 / this.zoomLevel}) translateX(${translateX}px) translateY(${translateY}px)`;
}
},
transform: function() {
return `scale(${this.zoomLevel}) translateX(${this.translateX}px) translateY(${this.translateY}px)`;
},
canZoomIn: function() {
const closest = this.zoomLevels.reduce((a, b) => {
return Math.abs(b - this.zoomLevel) < Math.abs(a - this.zoomLevel) ? b : a;
});
return this.zoomLevels[this.zoomLevels.indexOf(closest) + 1] === undefined
},
canZoomOut: function() {
const closest = this.zoomLevels.reduce((a, b) => {
return Math.abs(b - this.zoomLevel) < Math.abs(a - this.zoomLevel) ? b : a;
});
return this.zoomLevels[this.zoomLevels.indexOf(closest) + -1] === undefined
}
}
});
window.vue = new Vue({
el: '#app'
});
.media-360-viewer {
position: relative;
overflow: hidden;
background: #000;
width: 500px;
}
.media-360-viewer__image {
width: 100%;
}
.media-360-viewer__image.canTranslate {
cursor: grab;
}
.media-360-viewer__image.isTranslating {
cursor: grabbing;
}
.media-360-viewer__image.canRotate {
cursor: w-resize;
}
.media-360-viewer__loader {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: rgba(0, 0, 0, 0.5);
}
.media-360-viewer__loader * {
user-select: none;
}
.media-360-viewer__loader > svg {
width: 100%;
height: 100%;
transform: rotate(270deg);
}
.media-360-viewer__loader--text {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
display: flex;
justify-content: center;
align-items: center;
flex-direction: column;
}
.media-360-viewer__loader--text p {
font-size: 100%;
font-weight: bold;
color: #fff;
}
.media-360-viewer__loader--text p.large {
font-size: 150%;
}
.media-360-viewer__loader--background {
stroke-dasharray: 0;
stroke-dashoffset: 0;
stroke: rgba(0, 0, 0, 0.7);
stroke-width: 25px;
}
.media-360-viewer__loader--cover {
stroke-dasharray: 200%;
stroke: #848484;
stroke-width: 15px;
stroke-linecap: round;
}
.media-360-viewer__loader--background,
.media-360-viewer__loader--cover {
fill: transparent;
}
.media-360-viewer__viewport {
position: absolute;
top: 10px;
left: 10px;
z-index: 2;
overflow: hidden;
}
.media-360-viewer__viewport--image {
width: 100%;
pointer-events: none;
}
.media-360-viewer__viewport--zoom {
position: absolute;
bottom: 5px;
right: 5px;
color: #fff;
z-index: 3;
font-size: 12px;
pointer-events: none;
}
.media-360-viewer__viewport--square {
display: block;
width: 100%;
height: 100%;
position: absolute;
top: 0;
left: 0;
box-shadow: rgba(0, 0, 0, 0.8) 0 0 0 10000px;
cursor: grab;
transition: background ease-in-out 0.1s;
}
.media-360-viewer__viewport--square:hover {
background: rgba(255, 255, 255, 0.2);
}
.media-360-viewer__tools {
position: absolute;
bottom: 0;
left: 0;
width: 100%;
display: flex;
align-items: center;
justify-content: center;
padding-bottom: 10px;
}
.media-360-viewer__tools > a {
margin: 0 5px;
color: #000;
background: #fff;
border-radius: 50%;
width: 40px;
text-align: center;
line-height: 40px;
}
.media-360-viewer__tools > a[disabled] {
opacity: .5;
cursor: not-allowed;
}
.media-360-viewer__tools > a[disabled]:hover {
color: #000;
background: #fff;
}
.media-360-viewer__tools > a:hover {
background: #000;
color: #fff;
}
.media-360-viewer__tools--autoplay:before {
font-family: 'ClickIcons';
content: '\ea81';
}
.media-360-viewer__tools--autoplay.active:before {
content: '\eb48';
}
.fade-enter-active,
.fade-leave-active {
transition: opacity .5s;
}
.fade-enter,
.fade-leave-to {
opacity: 0;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>
<div id="app">
<test></test>
</div>
<script type="text/x-template" id="template">
<div class="media-360-viewer" ref="container">
<transition name="fade">
<div class="media-360-viewer__viewport" v-if="zoomLevel > 1 && viewportEnabled" :style="{ width: (viewportScale * 100) + '%' }">
<img tabindex="1" draggable="false" alt="Viewport" class="media-360-viewer__viewport--image" src="https://www.bennetts.co.uk/-/media/bikesocial/2019-september-images/2020-yamaha-yzf-r1-and-r1m-review/2020-yamaha-r1-and-r1m_005.ashx?h=493&w=740&la=en&hash=F97CD240F0DDFA9540E912DCF7F07019017035C6">
<span class="media-360-viewer__viewport--zoom">
x{{ Math.round(zoomLevel * 10) / 10 }}
</span>
<span :style="{ transform: viewportTransform }" #mouseup="handleEnd" #mousedown="handleStart" #mousemove="handleMove($event, true)" #touchstart="handleStart" #touchend="handleEnd" #touchmove="handleMove($event, true)" class="media-360-viewer__viewport--square"></span>
</div>
</transition>
<img tabindex="1" ref="image" draggable="false" src="https://www.bennetts.co.uk/-/media/bikesocial/2019-september-images/2020-yamaha-yzf-r1-and-r1m-review/2020-yamaha-r1-and-r1m_005.ashx?h=493&w=740&la=en&hash=F97CD240F0DDFA9540E912DCF7F07019017035C6"
:style="{ transform: transform }" :class="{
canTranslate: zoomLevel > 1 && zoomEnabled,
canRotate: zoomLevel === 1,
isTranslating: zoomLevel > 1 && zoomEnabled && isMoving
}" #mouseup="handleEnd" #mousedown="handleStart" #mousemove="handleMove" #touchstart="handleStart" #touchend="handleEnd" #touchmove="handleMove" #dblclick="zoom" #wheel="zoomWheel" alt="360 Image" />
</div>
</script>

Math.floor only when necessary
A part of this problem is a result of calling Math.floor all the time. Each time you call Math.floor your next calculations will be less accurate.
If you still want to round numbers, do it only at the end of your calculations chain or even in the place where you are using the variable. For example:
transform: function() {
const translateX = Math.floor(this.translateX)
const translateY = Math.floor(this.translateY)
return `scale(${this.zoomLevel}) translateX(${translateX}px) translateY(${translateY}px)`;
}
Scaling factor
However when moving the image around it is moving faster than the mouse
This can be fixed by dividing number you're adding to the translate value by scale factor, which is determined by zoomLevel like so:
if (translate.left >= 0 && translate.right <= 0) {
this.translateX += move.x / this.zoomLevel
}
if (translate.top >= 0 && translate.bottom <= 0) {
this.translateY += move.y / this.zoomLevel
}
Scaling factor - viewport
Viewport is still somehow broken too because of scaling, we need to adjust translation value too, but this time not using zoomLevel but scale of the viewport which is stored in this.viewportScale. So, merging two of solutions together we now have code like this:
if (translate.left >= 0 && translate.right <= 0) {
if (viewport) {
this.translateX += move.x / this.viewportScale
} else {
this.translateX += move.x / this.zoomLevel
}
}
if (translate.top >= 0 && translate.bottom <= 0) {
if (viewport) {
this.translateY += move.y / this.viewportScale
} else {
this.translateY += move.y / this.zoomLevel
}
}
Reversing values
I also feel like when i'm clicking and dragging on the viewport I shouldn't be reversing the values twice
I don't think that there is a better way to do it unless you want to make two inner translate functions that will handle translation depending on the input source (viewport or image). It will be definetely cleaner approach to coding. For example if in future you would like to write some viewport specific code you will not need to include another and another if. Your function could like like so:
translate (positions, element, zooming, viewport) {
positions = positions || {
x: this.startX,
y: this.startY
}
if (viewport) {
this._translateFromViewport(positions, element, zooming)
} else {
this._translateFromImage(positions, element, zooming)
}
this.startX = positions.x
this.startY = positions.y
}
where _translateFromViewport and _translateFromImage functions hold feature specific code.

How to determine why a hyperlink is not working?

I've created a new format of the main banner for my page. However, all the links except for the little preview picture on the right side isn't working and I have no idea why.
I'm a designer who's trying to do publishing at the same time so my knowledge for js is very limited but I deal with css and html quite well.
Here is the link
;
(function($) {
$.fn.DB_tabArrowSlideMove2 = function(options) {
var opt = {
motionType: 'fade',
motionSpeed: 300,
autoRollingTime: 3000,
videoRollingTime: 6000,
arrowVisible: true,
overRolling: false,
random: false,
yt_player: []
};
$.extend(opt, options);
return this.each(function() {
var $this = $(this);
var $img = $this.find('.img');
var $img_li = $img.find('> li');
var $arrow = $this.find('.arrow');
var $next = $this.find('.next');
var $prev = $this.find('.prev');
var $auto = $this.find('.auto');
var len = $img_li.length;
//console.log(len);
var $btn = $this.find('.btn');
if (len == 1) {
$next.hide();
$prev.hide();
$btn.hide();
return;
}
if ($btn.find('li').length == 0) {
for (var i = 0; i < len; i++) {
$btn.append('<li class=n' + (i + 1) + '><span>' + (i + 1) + '</span></li>');
};
};
var $btn_li = $btn.find('> li');
var current = 0;
var oldCurrent = 0;
var dir = 'next';
var random = opt.random;
if (random) {
current = Math.floor(Math.random() * len);
oldCurrent = current;
dir = 'random';
};
var timerId = 0;
var timer = 0;
var autoPlay = true;
var arrowOver = false;
var imgWidth = $img_li.width();
var imgHeight = $img_li.height();
var overRolling = opt.overRolling;
var arrowVisible = opt.arrowVisible;
var motionType = opt.motionType;
var motionSpeed = opt.motionSpeed;
var autoRollingTime = opt.autoRollingTime;
var videoRollingTime = opt.videoRollingTime;
var mOver = false;
//
var $window = $(window);
//var yt_player=opt.yt_player;
var yt_length = yt_player.length;
var yt_pos = {};
var scrollTop = 0;
if (yt_length) {
//var $iframe=$this.find('iframe');
$iframe.each(function(index) {
$(this).attr('data-no', index);
});
$window.scroll(function() {
videoSoundByWinScroll();
});
var isMute = 1;
videoSoundByWinScroll();
function videoSoundByWinScroll() {
yt_pos.start = $this.offset().top;
yt_pos.height = $this.height()
yt_pos.end = yt_pos.start + yt_pos.height
scrollTop = $(this).scrollTop();
if (scrollTop + $window.height() > yt_pos.start && scrollTop < yt_pos.end) {
if (isMute == 0) {
var _iframe = $img_li.eq(current).find('iframe');
if (_iframe.length) {
var _no = _iframe.attr('data-no') * 1;
yt_player[_no].playVideo();
}
isMute = 1;
$this.mouseleave();
}
} else {
if (isMute == 1) {
for (var i = 0; i < yt_length; i++) {
//console.log('멈춤');
yt_player[i].pauseVideo();
}
isMute = 0;
$this.mouseenter();
}
}
}
}
init();
function init() {
setCss();
setMouseEvent();
setEnterFrame();
};
function setCss() {
if (arrowVisible == false) {
$arrow.hide();
$auto.hide();
};
for (var i = 0; i < len; i++) {
var _img = $img_li.eq(i);
switch (motionType) {
case 'x':
if (i == current) {
_img.css({
'left': 0,
'top': 0
});
} else {
_img.css({
'left': imgWidth * i,
'top': 0
});
}
break;
case 'y':
if (i == current) {
_img.css({
'top': 0,
'left': 0
});
} else {
_img.css({
'top': imgHeight * i,
'left': 0
});
}
break;
default:
_img.css({
'top': 0,
'left': 0
});
if (i == current) {
_img.show();
} else {
_img.hide();
};
};
};
$btn_li.removeClass('on');
$btn_li.eq(current).addClass('on');
$btn_li.find('span').stop().css('width', 0);
function setMouseEvent() {
$this.bind('mouseenter', function() {
mOver = true;
if (overRolling == false && autoPlay == true) {
$btn_li.eq(current).find('span').stop();
};
if (arrowVisible == false) {
$arrow.show();
$auto.show();
};
});
$this.bind('mouseleave', function() {
mOver = false;
if (overRolling == false && autoPlay == true) {
var time
if ($img_li.eq(current).find('iframe').length) {
time = videoRollingTime - videoRollingTime * $btn_li.eq(current).find('span').width() / $btn_li.eq(current).find('span').parent().width();
} else {
time = autoRollingTime - autoRollingTime * $btn_li.eq(current).find('span').width() / $btn_li.eq(current).find('span').parent().width();
}
//console.log('남은시간:'+time);
$btn_li.eq(current).find('span').animate({
'width': '100%'
}, time, 'linear');
};
if (arrowVisible == false) {
$arrow.hide();
$auto.hide();
};
if (random && (motionType != 'x' || motionType != 'y')) {
dir = 'random';
}
});
$btn_li.bind('mouseenter', function() {
var _index = $(this).index();
if (_index > current) {
//dir='next';
} else {
//dir='prev';
};
if (current != _index) {
current = _index;
setAnimation();
};
});
$arrow.bind('mouseenter', function() {
arrowOver = true;
});
$arrow.bind('mouseleave', function() {
arrowOver = false;
});
$next.bind('click', function() {
dir = 'next';
changeCurrent();
});
$prev.bind('click', function() {
dir = 'prev';
changeCurrent();
});
$auto.bind('click', function() {
if (autoPlay) {
autoPlay = false;
setReplace($auto.find('img'), 'src', '_on', '_off');
} else {
autoPlay = true;
setReplace($auto.find('img'), 'src', '_off', '_on');
};
});
};
function changeCurrent() {
if (autoPlay || arrowOver) {
if (dir == 'next') {
current++;
if (current == len) {
current = 0
}
} else if (dir == 'prev') {
current--;
if (current < 0) {
current = len - 1;
}
dir = "next";
} else {
for (var i = 0; i < 10; i++) {
current = Math.floor(Math.random() * len);
if (oldCurrent != current) {
break;
}
}
}
//console.log(current);
setAnimation();
};
};
function setEnterFrame() {
var rollingTime = 0;
if (autoRollingTime > 0) {
setInterval(function() {
// console.log(mOver,current,dir)
if (mOver == false || overRolling == true) {
timer++;
//console.log('현재동작중인:'+current)
//video
if ($img_li.eq(current).find('iframe').length) {
rollingTime = videoRollingTime;
} else {
rollingTime = autoRollingTime;
}
if (timer % (Math.ceil(rollingTime / 100)) == 0) {
changeCurrent();
}
}
}, 100);
};
};
$btn_li.removeClass('on');
$btn_li.eq(current).addClass('on');
$btn_li.find('span').stop().css('width', 0);
if (mOver == false || overRolling == true) {
function setReplace(_mc, _attr, _old, _new) {
var str = _mc.attr(_attr);
if (String(str).search(_old) != -1) {
_mc.attr(_attr, str.replace(_old, _new));
};
};
});
};
})(jQuery);
if ($iframe.length == 0) {
$('.JS_mainBnr').DB_tabArrowSlideMove2({
motionType: 'fade',
motionSpeed: 600,
autoRollingTime: 6000,
arrowVisible: true,
overRolling: false,
random: false
})
}
.JS_mainBnr {
margin-top: -283px;
z-index: 1;
width: 100%;
height: 369px/;
overflow: hidden;
margin: 0 auto;
text-align: center
}
.JS_mainBnr .img {
position: relative;
margin: 0 auto;
width: auto;
height: 100%;
}
.JS_mainBnr .img:after {
content: "";
display: block;
clear: both;
}
.JS_mainBnr .img li {
position: absolute;
top: 0;
left: 50%!important;
width: 5000px;
height: auto;
margin-left: -2500px;
text-align: center;
}
.JS_mainBnr .img li a {
width: 5000px;
height: auto;
display: inline-block
}
.JS_mainBnr .img li:first-child {
z-index: 1;
}
/* Button */
.JS_mainBnr .btn {
z-index: 3;
position: absolute;
top: 0px;
letter-spacing: -4px;
top: 0;
left: 50%!important;
width: 5000px;
height: 100%;
margin-left: -2630px;
text-align: center;
}
.JS_mainBnr .btn:after {
content: "";
display: block;
clear: both;
}
.JS_mainBnr .btn li {
position: relative;
*zoom: 1;
padding: 0 0;
background: rgba(255, 255, 255, .5);
box-shadow: 0 1px 6px rgba(0, 0, 0, 0.10);
color: #333;
font-size: 12px;
cursor: pointer;
letter-spacing: 0;
transition: all .2s ease;
-webkit-transition: all .2s ease;
width: 257px;
margin-left: 60%;
}
.JS_mainBnr:hover .btn li {
background: rgba(0, 0, 0, .1);
}
.JS_mainBnr:hover .btn li img {
opacity: 0.3
}
.JS_mainBnr .btn li.on {
z-index: 1;
background: rgba(255, 255, 255, .9) color:#fff;
}
.JS_mainBnr:hover .btn li.on img {
opacity: 1
}
/* Arrow */
.JS_mainBnr .prev {
position: absolute;
top: 285px;
left: 515px;
width: 21.5px;
height: 30px;
background: url('/_wg/img/_arrow/arrowL_50.gif') no-repeat 50% 50% rgba(255, 255, 255, .2);
opacity: 0;
-webkit-opacity: 0;
transition: all .3s ease;
-webkit-transition: all .3s ease;
background-size: 18px 27px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="JS_mainBnr">
<ul class="img">
<li>
<img src="/_wg/img/JS_mainBnr/06P.jpg" alt="">
</li>
<li>
<img src="/_wg/img/JS_mainBnr/08O.jpg" alt="">
</li>
<li>
<img src="/_wg/img/JS_mainBnr/09J.jpg" alt="">
</li>
</ul>
<div id="outer">
<ul class="btn">
<li>
<img src="/_wg/img/JS_mainBnr/01thumba.jpg" width="257px" height="105px">
</li>
<li>
<img src="/_wg/img/JS_mainBnr/02thumba.jpg" width="257px" height="105px">
</li>
<li>
<img src="/_wg/img/JS_mainBnr/03thumba.jpg" width="257px" height="105px">
</li>
</ul>
</div>
<ul class="DB_dir">
<span class="arrow prev"></span>
<span class="arrow next"></span>
</ul>
</div>

.JS_mainBnr .btn {
z-index: 3;
position: absolute;
top: 0;
left: 50%;
margin-left: 370px;
}
.JS_mainBnr .btn li {
margin-left: 60% } /<< DELETE/

How should I create a package for a... thing that takes a DOM Element?

I have written my first piece of code that I feel could actually be reusable and possibly useful for others. The code is a bit of css, a few javascript-classes and some js-functions.
To use the package, you set up some HTML, and then pass a html-element and an optional parameter, for example like this:
dom = new DOM(document.getElementById('fullScreenWrapper'), 175),
I would like to pack it in some way so that you basically include a js-file, a css-file and then you can use it in any project. jQuery has a design-pattern for extending itself, but I don't use jQuery. Is there any best practice for stuff like this?
Here is the mockup, not packaged:
<html>
<head>
<style>
/* specific styles */
&:root {--scrollPosition:0}
.flicWrapper{
height: calc(var(--wrapperHeight));
}
.flicWrapper .flicChild{
top: calc(var(--previousHeight));
position: fixed;
}
.flicWrapper.transition{
height: initial;
}
.flicWrapper.transition .flicChild{
transition: transform .3s cubic-bezier(0, 0, 0.25, 1);
}
.flicWrapper .before{
transform: translate3d(0,calc((var(--previousHeight)*-1)),0);
}
.flicWrapper .active{
transform: translate3d(0, calc((var(--previousHeight)*-1) + var(--stickyScrollPosition)), 0);
}
.flicWrapper .next{
transform: translate3d(0, calc(var(--scrollPosition)), 0);
}
/*custom style*/
body{
margin: 0;
}
section{
width: 100%;
height: 100%;
}
.s1{
height: 100%;
background: repeating-linear-gradient(
45deg,
red,
red 10px,
blue 10px,
blue 20px
);
}
.s2{
height: 150%;
background: repeating-linear-gradient(
45deg,
#606dbc,
#606dbc 10px,
#465298 10px,
#465298 20px
);
}
</style>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
</head>
<body>
<div class="fullScreenWrapper" id="fullScreenWrapper">
<section class="s1" ></section>
<section class="s2"></section>
<section class="s3" style="background: red";></section>
<section class="s4" style="background: green";></section>
<section class="s5" style="background: black";></section>
</div>
<script type="text/javascript">
var State = class {
constructor(heights, offset) {
this.breakingPoints = heights;
this.offset = offset;
this.state = this.currentState;
}
get currentState(){
return this.breakingPoints.findIndex((elm, i, arr)=> {
if(window.scrollY >= arr[i] && window.scrollY < arr[i+1] ){
return[i]
}
})
}
get update(){
var isUpdated = Math.sign( this.currentState - this.state)
this.state += isUpdated;
return isUpdated !== 0
}
get snapPos() {
var offset = this.state ? this.offset : 0; // first state should not have offset.
return this.breakingPoints[this.state] + offset;
}
},
DOM = class {
constructor(wrapper, offset) {
this.wrapper = wrapper;
this.offset = offset
this.children = Array.from(wrapper.children);
this.childHeights = [];
this.scrollHeights = this.getScrollHeights;
this.wrapper.classList.add('flicWrapper')
setGlobalProperty('wrapperHeight', this.documentHeight)
//apply custom css-values
this.children.forEach((child, i) => {
child.classList.add('flicChild')
var height = 0
if(i > 0 ){
var height = this.children[i-1].offsetHeight;
}
child.style.setProperty('--previousHeight', height+'px');
this.childHeights.push(child.offsetHeight - window.innerHeight);
})
}
get getScrollHeights() {
var heights = [0];
//calculate al the heights
this.children.forEach((el, i) => {
var mod = 2;
if(i === 0 || i === this.children.length -1){mod = 1}; //first and last should only have one offset
var elheight = el.offsetHeight - window.innerHeight + this.offset * mod;
heights.push( elheight + heights[i] );
})
return heights;
}
get documentHeight() {return this.scrollHeights.slice(-1)[0]+window.innerHeight-1}
},
Scroll = class{
constructor(){
this.on = true;
}
throttle(fn, wait){
var time = Date.now();
return () => {
if ((time + wait - Date.now()) < 0 && this.on) {
fn();
time = Date.now();
}
}
}
},
scrollEvent = () => {
if(state.update){ //check state
scroll.on = false;
dom.wrapper.classList.add('transition')
setClasses();
setScrollPos(0, dom.childHeights[state.state]);
setTimeout(changeDone, 1200);
}
},
setClasses = () => {
var s = state.state;
dom.children.forEach((child, i) => {
let classes = child.classList;
classes.toggle('before', i < s);
classes.toggle('after', i > s);
classes.toggle('active', i === s);
classes.toggle('previous', i === s-1);
classes.toggle('next', i === s+1);
})
},
changeDone = () => {
dom.wrapper.classList.remove('transition');
window.scrollTo(0, state.snapPos);
scroll.on = true;
},
//helper
setGlobalProperty = (name, value) => {
document.documentElement.style.setProperty('--'+name, (value+'px'))
},
setScrollPos = (pos, max) => {
setGlobalProperty('scrollPosition', -pos)
setGlobalProperty('stickyScrollPosition', (Math.min(pos, max)*-1))
},
dom = new DOM(document.getElementById('fullScreenWrapper'), 175),
state = new State(dom.scrollHeights, dom.offset),
scroll = new Scroll();
setClasses();
window.addEventListener('scroll', scroll.throttle(scrollEvent, 50));
window.addEventListener('scroll', scroll.throttle(() => {setScrollPos(window.scrollY - state.snapPos, dom.childHeights[state.state])}, 0))
</script>
</body>