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jQuery Image Slices

I've an image slider, in which I want to slice the image to create some kind of 3D-Effekt. I created the slider, but now I'm struggling with the responsive behavior of the slider.
In px values, everything is working finde, but I want the slider to be responsive.
Could somebody look at my code and give me a solution to solve the problem?
Here is my code:
The SCSS:
/*Variables & Helper*/
*{
box-sizing: border-box;
}
%clearfix {
&:after {
content: "";
display: table;
clear: both;
}
}
body, html{
margin: 0;
padding: 0;
background: url('../img/bg.png');
}
img{
max-width: 100%;
height: auto;
}
.article{
width: 80%;
margin: 2rem auto;
background: #fff;
#extend %clearfix;
padding: .8rem;
}
.img__container {
float: left;
width: 100%;
margin: 0;
}
.slice{
float: left;
}
And here is the JavaScript:
$(function(){
$( window ).on('resize',function() {
calcDimensions();
bgPosition();
});
/*Variables*/
var $imgContainer = $('.img__container'),
$img = $imgContainer.children('img'),
slices = 5,
percentage = 100 / slices + '%',
imgWidth = $imgContainer.width(),
imgHeight = $imgContainer.height();
/**/
sliceImg();
/*Functions*/
function calcDimensions(){
imgWidth = $imgContainer.width();
imgHeight = $imgContainer.height();
};
function bgPosition(){
for (var i = 0; i < slices; i++){
$('#slice' + i).css({
'background-position' : - ( (imgWidth / slices) * i ) + 'px 0%',
});
};
}
function sliceImg(){
var imgLink = $img.attr('src');
/* Delete the image */
$img.remove();
/*Loop*/
/*Create new divs*/
for (var i = 0; i < slices; i++){
var newDiv = $('<div></div>').addClass('slice').attr('id', 'slice' + i);
$imgContainer.append(newDiv);
};
/**/
bgPosition();
$('.slice').css({
'background-image' : 'url(' + imgLink + ')',
'width' : percentage,
'height' : imgHeight ,
'background-size' : 'cover',
});
};
});
So, if i resize the window, it's kind of responsive. But not as great as a real responsive experience.
I also tried something like that, which should be the right mathematic operation. But in jQuery i can't do mathematic operations with %, or am I wrong? Because I'm always getting errors....
$('.slice').css({
'background-image' : 'url(' + imgLink + ')',
'width' : (imgWidth / slices / 100 * 1%) ,
'height' : imgHeight ,
'background-size' : 'cover',
});
I'm looking forward to get a solution.
Thanks!
Best regards,

You said you used 'px', so I think everything will go well if you use 'em' instead of 'px'. And correct me If I am wrong, but I think you might want to use Dootstrap for responsive design.

Strange variable behavior in Draggabilly jQuery plugin

Ok guys, i have no idea what's going on here. Im using this plugin (http://draggabilly.desandro.com/) and making a drag & drop grid (or something similar). Here's the pen (http://codepen.io/anon/pen/QbKjzx) and here the code:
// external js: draggabilly.pkgd.js
$(document).ready( function() {
for(var i=1;i<=12;i++) {
$(".inventory").append('<div class="item"></div>');
}
for (var i = 0; $('.item').length + 1 > i; i++){
var n = i.toString();
var $item = $('.item:nth-child(' + i + ')');
$item.text(n);
var offsetX = $item.css("left");
var offsetY = $item.css("top");
$item.addClass(n);
$item.draggabilly();
$item.css("background-color","green");
$("." + n).on("dragStart",function(){
$(this).css({"transition": "none", "z-index": "9999", "background-color": "red"})
.mousemove(function(e){
$(this).on("dragEnd",function(){
$(this).css("top",offsetY);
$(this).css("left",offsetX);
var posX = e.pageX;
var posY = e.pageY;
var thisItsTheVariable = $("p").height();
$(this).css({"transition": "all .3s", "z-index": "1"});
})
})
})
}
})
The weird thing comes with thisItsTheVariable. When you assign to the variable any other value, there is an animation when you drop the dive and this come back to its original place. Even with $("p").css("background-color") or something similar works. But when you use .css("top"), .css("left"), .css("height"), .css("width"), .height(), .width() and possibly other (i didn't try it all), the animation dissapears! What is happening here?

Calling $("p").height() after you start the animation seems to fix it.
// external js: draggabilly.pkgd.js
$(document).ready(function () {
for (var i = 1; i <= 12; i++) {
$(".inventory").append('<div class="item"></div>');
}
for (var i = 0; $('.item').length + 1 > i; i++) {
var n = i.toString();
var $item = $('.item:nth-child(' + i + ')');
$item.text(n);
var offsetX = $item.css("left");
var offsetY = $item.css("top");
$item.addClass(n);
$item.draggabilly();
$item.css("background-color", "green");
$("." + n).on("dragStart", function () {
$(this).css({
"transition": "none",
"z-index": "9999",
"background-color": "red"
})
.mousemove(function (e) {
$(this).on("dragEnd", function () {
$(this).css("top", offsetY);
$(this).css("left", offsetX);
var posX = e.pageX;
var posY = e.pageY;
$(this).css({"transition": "all .3s", "z-index": "1"});
var thisItsTheVariable = $("p").height();
})
})
})
}
})
body, html {
height: 100%;
width: 100%;
padding: 0;
border: 0;
}
.inventory {
height: 300px;
width: 400px;
border: 1px black solid;
display: flex;
flex-direction: row;
flex-wrap: wrap;
}
.item {
width: 100px;
height: 100px;
background: #F90;
box-sizing: border-box;
border: 1px black solid;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/draggabilly/1.2.0/draggabilly.pkgd.js"></script>
<div class="inventory"></div>
<p></p>

How to remove flicking in IE?

I have created this fiddle where I have flicking problem in IE. Even Chrome isnt good, but in fiddle it looks more or less fine. I think problem is in "size of step" for one scroll, when you grab scroller manualy everything is smooth, but using your mousewheel leads to jumping/flicking in IE and Chrome.
window.addEventListener('scroll', function() { ...}, false);
This is my current HTML:
<div id="fakeBody">
<div id="spacer">scroll down</div>
<div class="niceBanner hide roller" id="niceBannerFrame">
<div id="bannerShadow"></div>
<div id="thumb0">
<div id="niceBannerOriginal" class="roller thumb1 thumb2"></div>
<div id="niceBannerBlur" class="roller deblur thumb1 thumb2"></div>
<div id="blackRow"></div>
</div>
</div>
</div>
Script:
window.addEventListener('scroll', function () {
var totalHeigth, currentScroll, visibleHeight;
var newResolutionBannerHeight = 0;
currentScroll = (document.documentElement.scrollTop) ? document.documentElement.scrollTop : document.body.scrollTop;
totalHeigth = (document.height !== undefined) ? document.height : document.getElementById("fakeBody").offsetHeight;
visibleHeight = document.documentElement.clientHeight;
var w = window,
d = document,
e = d.documentElement,
g = d.getElementsByTagName('body')[0],
x = w.innerWidth || e.clientWidth || g.clientWidth,
y = w.innerHeight || e.clientHeight || g.clientHeight;
var curentWidth = x;
console.log('curent Width: ' + curentWidth);
if (curentWidth < 1070) {
var newBannerWidth = Math.round((curentWidth / 1070) * 1920);
var newMargin = Math.round((newBannerWidth - curentWidth) / 2);
newResolutionBannerHeight = Math.round((500 / 1920) * newBannerWidth);
} else {}
//now it is easy to recognize if visitor is at the bottom of page
if (visibleHeight + currentScroll >= totalHeigth) {
//do the magic with banner
document.getElementById("niceBannerFrame").className = "unhide";
var bannerHeight = visibleHeight + currentScroll - totalHeigth;
var style = document.createElement('style');
style.type = 'text/css';
var number = (curentWidth < 500) ? 10 + bannerHeight : 50 + bannerHeight; //not ideal solution, slower rolling for small screen, picture is realy small
if (curentWidth > 1070) {
number = (number > 500) ? 500 : number;
var opacityBlur = 1 - (number / 500);
style.innerHTML = '.roller {bottom:-' + number + 'px;} .deblur {opacity:' + opacityBlur + ';} .thumb2{height: 500px;} ';
} else {
number = (number > newResolutionBannerHeight) ? newResolutionBannerHeight : number;
var opacityBlur = 1 - (number / newResolutionBannerHeight);
style.innerHTML = '.roller {bottom:-' + number + 'px;} .deblur {opacity:' + opacityBlur + ';} .thumb2{height:' + newResolutionBannerHeight + 'px;} ';
}
document.head.appendChild(style);
} else {
//it is not good time for magic, scroll a bit more or I will hide already visible bilboard
document.getElementById("niceBannerFrame").className = "hide";
}
}, false);
and CSS:
#spacer {
height: 1000px;
background-color: whitesmoke;
}
#niceBannerOriginal {
background-image:url(http://nzworker.com/jakub-portfolio/justfiles/1920x500_original.jpg);
position: absolute;
z-index:-3;
}
#niceBannerBlur {
background-image:url(http://nzworker.com/jakub-portfolio/justfiles/1920x500_blur.jpg);
position: absolute;
z-index:-2;
}
#bannerShadow {
position:absolute;
background-image:url(http://nzworker.com/jakub-portfolio/justfiles/Stin.png);
background-repeat:repeat-x;
width:100%;
z-index:-1;
height:25px;
}
.hide {
display: none;
}
.unhide {
display: block;
}
#fakeBody {
height:1000px;
position:relative;
top:0;
left:0;
right:0;
}
#blackRow {
display:none;
}
#niceBannerFrame {
overflow: hidden;
}
#media (min-width: 1921px) {
#blackRow {
background-color: #000000;
display: block;
height:500px;
position: absolute;
width: 100%;
z-index: -6;
}
}
/*desktop resolution*/
#media (min-width: 1070px) and (max-width: 1920px) {
.thumb1 {
width: 100%;
height: 500px;
background-position: 50% 50%;
/*image centering*/
}
.thumb2 {
}
}
/*mobile and tablet resolution*/
#media (max-width: 1069px) {
.thumb2 {
width: 100%;
height: 500px;
background-repeat:no-repeat;
/*background-position: 50% 50%; image centering*/
}
#niceBannerOriginal {
background-image:url(http://nzworker.com/jakub-portfolio/justfiles/1920x500_original-thumb.jpg);
background-size: 100%;
}
#niceBannerBlur {
background-image:url(http://nzworker.com/jakub-portfolio/justfiles/1920x500_blur-thumb.jpg);
background-size: 100%;
}
}
My question is do you how to remove this flicking? Or do you know how to cut one mouse wheel step to more smaller ones?
PS: I can not use jQuery or other plugins.

I can't be 100% sure about this, but I think the flickering isn't from the amount you're scrolling, but due to the fact that you're changing the display mode, and pushing the view back up a tiny bit.
Essentially if you are just underneath the visibleHeight+currentScroll >= totalHeigth test by a couple of pixels, then currentScroll get's pushed up a tiny bit when whatever happens in there happens (I don't entirely understand what's going on, so I can't really give any better advice on that), so that it's no longer greater than totalHigth, and so it then fails the test immediately after, hence the flickering.
Worked this out by getting rid of the hide line at the end and it seems to work. Unfortunately I don't entirely understand the code, so I can't give you any better idea than that, though hopefully it points you towards a solution.

Draggable Columns With Pure JavaScript

I'm trying to build a draggable column based layout in JavaScript and having a bit of hard time with it.
The layout comprises of 3 columns (divs), with two dragable divs splitting each. The idea is that they are positioned absolutely and as you drag the draggers, the columns' respective widths, and left values are updated.
The three columns should always span the full width of the browser (the right most column is 100% width), but the other two should remain static by default when the browser is resized (which is why i'm using px, not %).
My code isn't working as of yet, I'm relatively new to JavaScript (which is why I don't want to use jQuery).
Having said that, there must be a more efficient (and cleaner) way of achieving this with less code that works (without reaching for the $ key).
If anyone with some awesome JS skills can help me out on this I'd be super-appreciative.
Here's the fiddle I'm working on http://jsfiddle.net/ZFwz5/3/
And here's the code:
HTML
<!-- colums -->
<div class="col colA"></div>
<div class="col colB"></div>
<div class="col colC"></div>
<!-- draggers -->
<div class="drag dragA" style="position: absolute; width: 0px; height: 100%; cursor: col-resize; left:100px;"><div></div></div>
<div class="drag dragB" style="position: absolute; width: 0px; height: 100%; cursor: col-resize; left: 300px;"><div></div></div>
CSS:
body {
overflow:hidden;
}
.col {
position: absolute;
height:100%;
left: 0;
top: 0;
overflow: hidden;
}
.colA {background:red;width:100px;}
.colB {background:green; width:200px; left:100px;}
.colC {background:blue; width:100%; left:300px;}
.drag > div {
background: 0 0;
position: absolute;
width: 10px;
height: 100%;
cursor: col-resize;
left: -5px;
}
and my terrible JavaScript:
//variabe columns
var colA = document.querySelector('.colA');
var colB = document.querySelector('.colB');
var colC = document.querySelector('.colC');
//variable draggers
var draggers = document.querySelectorAll('.drag');
var dragA = document.querySelector(".dragA");
var dragB = document.querySelector(".dragB");
var dragging = false;
function drag() {
var dragLoop;
var t = this;
var max;
var min;
if (dragging = true) {
if (this == dragA) {
min = 0;
max = dragB.style.left;
} else {
min = dragA.style.left;
max = window.innerWidth;
}
dragLoop = setInterval(function () {
var mouseX = event.clientX;
var mouseY = event.clientY;
if (mouseX >= max) {
mouseX = max;
}
if (mouseY <= min) {
mouseY = min;
}
t.style.left = mouseX;
updateLayout();
}, 200);
}
}
function updateLayout() {
var posA = dragA.style.left;
var posB = dragB.style.left;
colB.style.paddingRight = 0;
colA.style.width = posA;
colB.style.left = posA;
colB.style.width = posB - posA;
colC.style.left = posB;
colC.style.width = window.innerWidth - posB;
}
for (var i = 0; i < draggers.length; i++) {
draggers[i].addEventListener('mousedown', function () {
dragging = true;
});
draggers[i].addEventListener('mouseup', function () {
clearInterval(dragLoop);
dragging = false;
});
draggers[i].addEventListener('mouseMove', function () {
updateLayout();
drag();
});
}

I see a couple of things wrong here. First of all, the mousemove event only fires on an element when the mouse is over that element. You might have better luck registering a mousemove listener on the parent of your div.drag elements, then calculating the mouse's position inside that parent whenever a mouse event happens, then using that position to resize your columns and your draggers.
Second, I'm not quite sure what you're trying to do by registering a function with setInterval. You're doing pretty well with registering event listeners; why not continue to use them to change the state of your DOM? Why switch to a polling-based mechanism? (and the function you pass to setInterval won't work anyway - it refers to a variable named event, which in that context is undefined.)

This is just a little example... I hope it can help you :)
window.onload = function() {
var myDiv = document.getElementById('myDiv');
function show_coords(){
var monitor = document.getElementById('monitor');
var x = event.clientX - myDiv.clientWidth / 2;
var y = event.clientY - myDiv.clientWidth / 2;
monitor.innerText = "X: " + x + "\n" + "Y: " + y;
myDiv.style.left = x + "px";
myDiv.style.top = y + "px";
}
document.onmousemove = function(){
if(myDiv.innerText == "YES"){show_coords();}
}
myDiv.onmousedown = function(){
myDiv.innerText = "YES";
}
myDiv.onmouseup = function(){
myDiv.innerText = "NO";
}
}

Loading and position image, when the another images are loaded

I have a small problem with loading and position one of my images. The smallest one. I'm using spacegallery script (http://www.eyecon.ro/spacegallery/).
It's loading good, but i want it to position it in the corner of bigger image, and when i load my page for the first time, it's not positioned, when i reload it - it's all fine, but the first loading is wrong.
Here are the screens:
It's the first load without refreshing the site:
first load http://derivativeofln.com/withoutload.png
Second and next loads:
second load http://derivativeofln.com/withload.png
My HTML:
<div id="myGallery" class="spacegallery">
<img class="imaz" src=http://derivativeofln.com/magnifier.jpg />
<img class="aaa" src=images/bw1.jpg alt="" atr1="bw1" />
<img class="aaa" src=images/bw2.jpg alt="" atr1="bw2" />
<img class="aaa" src=images/bw3.jpg alt="" atr1="bw3" />
</div>
MY CSS:
#myGallery0 {
width: 100%;
height: 300px;
}
#myGallery0 img {
border: 2px solid #52697E;
}
a.loading {
background: #fff url(../images/ajax_small.gif) no-repeat center;
}
.imaz {
z-index: 10000;
}
.imaz img{
position: absolute;
left:10px;
top:10px;
z-index: 10000;
width: 35px;
height: 35px;
}
My Jquery main script file: (the first positioning instructions are on the bottom, so feel free to scroll down : ))
(function($){
EYE.extend({
spacegallery: {
animated: false,
//position images
positionImages: function(el) {
var top = 0;
EYE.spacegallery.animated = false;
$(el)
.find('a')
.removeClass(el.spacegalleryCfg.loadingClass)
.end()
.find('img.aaa')
.removeAttr('height')
.each(function(nr){
var newWidth = this.spacegallery.origWidth - (this.spacegallery.origWidth - this.spacegallery.origWidth * el.spacegalleryCfg.minScale) * el.spacegalleryCfg.asins[nr];
$(this)
.css({
top: el.spacegalleryCfg.tops[nr] + 'px',
marginLeft: - parseInt((newWidth + el.spacegalleryCfg.border)/2, 10) + 'px',
opacity: 1 - el.spacegalleryCfg.asins[nr]
})
.attr('width', parseInt(newWidth));
this.spacegallery.next = el.spacegalleryCfg.asins[nr+1];
this.spacegallery.nextTop = el.spacegalleryCfg.tops[nr+1] - el.spacegalleryCfg.tops[nr];
this.spacegallery.origTop = el.spacegalleryCfg.tops[nr];
this.spacegallery.opacity = 1 - el.spacegalleryCfg.asins[nr];
this.spacegallery.increment = el.spacegalleryCfg.asins[nr] - this.spacegallery.next;
this.spacegallery.current = el.spacegalleryCfg.asins[nr];
this.spacegallery.width = newWidth;
})
},
//constructor
init: function(opt) {
opt = $.extend({}, EYE.spacegallery.defaults, opt||{});
return this.each(function(){
var el = this;
if ($(el).is('.spacegallery')) {
$('')
.appendTo(this)
.addClass(opt.loadingClass)
.bind('click', EYE.spacegallery.next);
el.spacegalleryCfg = opt;
var listunia, images2 = [], index;
listunia = el.getElementsByTagName("img");
for (index = 1; index < listunia.length; ++index) {
images2.push(listunia[index]);
}
el.spacegalleryCfg.images = images2.length;
el.spacegalleryCfg.loaded = 0;
el.spacegalleryCfg.asin = Math.asin(1);
el.spacegalleryCfg.asins = {};
el.spacegalleryCfg.tops = {};
el.spacegalleryCfg.increment = parseInt(el.spacegalleryCfg.perspective/el.spacegalleryCfg.images, 10);
var top = 0;
$('img.aaa', el)
.each(function(nr){
var imgEl = new Image();
var elImg = this;
el.spacegalleryCfg.asins[nr] = 1 - Math.asin((nr+1)/el.spacegalleryCfg.images)/el.spacegalleryCfg.asin;
top += el.spacegalleryCfg.increment - el.spacegalleryCfg.increment * el.spacegalleryCfg.asins[nr];
el.spacegalleryCfg.tops[nr] = top;
elImg.spacegallery = {};
imgEl.src = this.src;
if (imgEl.complete) {
el.spacegalleryCfg.loaded ++;
elImg.spacegallery.origWidth = imgEl.width;
elImg.spacegallery.origHeight = imgEl.height
} else {
imgEl.onload = function() {
el.spacegalleryCfg.loaded ++;
elImg.spacegallery.origWidth = imgEl.width;
elImg.spacegallery.origHeight = imgEl.height
if (el.spacegalleryCfg.loaded == el.spacegalleryCfg.images) {
EYE.spacegallery.positionImages(el);
}
};
}
});
el.spacegalleryCfg.asins[el.spacegalleryCfg.images] = el.spacegalleryCfg.asins[el.spacegalleryCfg.images - 1] * 1.3;
el.spacegalleryCfg.tops[el.spacegalleryCfg.images] = el.spacegalleryCfg.tops[el.spacegalleryCfg.images - 1] * 1.3;
if (el.spacegalleryCfg.loaded == el.spacegalleryCfg.images) {
if(el.spacegalleryCfg.images == 3){
$('img.imaz', this).css('top', '27px'); // HERE IS POSITIONING OF MY IMAGES, WHEN SCRIPT LOADS FOR THE FIRST TIME!
$('img.imaz', this).css('left', (($(el).find('img.aaa:last').width())/2 + 77) + 'px' );
}
else if(el.spacegalleryCfg.images==2){
$('img.imaz', this).css('top', '33px');
$('img.imaz', this).css('left', (($(el).find('img.aaa:last').width())/2 + 77) + 'px' ); // HERE IT ENDS:)
}
EYE.spacegallery.positionImages(el);
}
}
});
}
}
});
})(jQuery);

this seems to be a cache thing
try to specify image dimensions (width and height) on your html, because on first load (images not in cache) the browser only knows dimensions after the load and the positioning might not be correct.
in alternative you can run your positioning code when the document is loaded
$(document).ready(«your poisitioning function here»)
see http://api.jquery.com/ready/ for that jquery ready function