Develop Reference

Darken screen when clicking on a link then redirect

I have the following project.
What I want is, when a user clicks on any link on the page, to slowly hide the image with the class map and smoothly display the black background, then return to its usual behaviour, redirecting the user to the next page.
My guess is that preventDefault() is the solution here together with some CSS like this one:
.hideImg{
opacity: 0;
visibility: hidden;
-webkit-transition: visibility 0.3s linear,
opacity 0.3s linear;
-moz-transition: visibility 0.3s linear,
opacity 0.3s linear;
-o-transition: visibility 0.3s linear,
opacity 0.3s linear;
}
body{
background-color:#000;
}
However, I fail to make them work together and create a JS that waits for the hiding animation to occur and then redirect.
How can I achieve this?

Try something like this:
$('a').on('click', function(e) {
e.preventDefault();
var href = $(this).attr('href');
// For one item
$('.map').animate({"opacity": "0"}, 1000, function() {
window.location.href = href;
});
// Or, for multiple classes - all doing the same thing
$('.map, .another-item, .another-class').animate({"opacity": "0"}, 1000, function() {
window.location.href = href;
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
Google
<div class='map' style="background: black; width: 300px; height: 300px;"></div>

You can add a class to the container that's holding the image.
And add an additional timeout before you go the new page.
$(".x").on('click', function(e) {
e.preventDefault();
$('div').addClass('darken');
window.setTimeout(function() {
window.location.href = 'https://www.google.com'; // this will navigate to the new page after 2s
}, 2000);
});
body {
background: black;
}
.warpper-map {
width: 500px;
height: 200px;
}
img.map {
width: 100%;
height: 100%;
}
.darken {
opacity: 0;
transition: opacity 2s ease; /* Makes smooth transition */
/* You can increase the time to make the transition much longer */
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<a class='x' href="#">Click to Darken</a>
<div class='wrapper-map'>
<img class='map' src="https://sporedev.ro/pleiade/images/Lobby.jpg">
</div>

I think this should do the work for you using jQuery:
$('a').on('click',function(e){
e.preventDefault;
$(this).addClass('hideImage');
$('.hideImage').on('animationend webkitAnimationEnd',function(){
window.location.href = $(this).attr('href');
})
});
or just give you the idea of how to fix it.
best of luck

Javascript Slideshow Glitches When Clicking Empty Space Around Image

So I got this slideshow code working, where when you click an image, it fades into another image. However, if, for example, there was a vertical orientated image with empty space on its right, if you click that space the whole slideshow kind of glitches out.
Here's my website where you can test it out:
http://danielshultz.github.io
The code:
$(document).ready(function() {
$.fn.nextOrFirst = function (selector) {
var next = this.next(selector);
return (next.length) ? next : this.prevAll(selector).last();
};
$("#cf2 img").click(function() {
$(this)
.removeClass('visible')
.nextOrFirst()
.addClass('visible');
});
});
CSS:
#cf2 {
position:relative;
height:281px;
width:450px;
margin:0 auto;
}
#cf2 img {
position:absolute;
left:0;
max-height: 600px;
max-width: 600px;
opacity: 0;
z-index: 0;
-webkit-transition: opacity 1s ease-in-out;
-moz-transition: opacity 1s ease-in-out;
-o-transition: opacity 1s ease-in-out;
transition: opacity 1s ease-in-out;
}
#cf2 img.visible {
opacity: 1;
z-index: 1;
}
HTML:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="cf2" class="shadow">
<img class="visible" src="http://static.ddmcdn.com/gif/storymaker-best-hubble-space-telescope-images-20092-514x268.jpg" alt="1"/>
<img src="http://economictimes.indiatimes.com/thumb/msid-45891755,width-640,resizemode-4/nasas-images-of-most-remarkable-events-you-cant-miss.jpg" alt="2"/>
<img src="http://i.dailymail.co.uk/i/pix/2013/11/03/article-2486855-192ACC5200000578-958_964x682.jpg" alt="3"/>
<img src="http://mstatic.mit.edu/nom150/items/199-HybridImage.jpg" alt="4"/>
</div>

If i understood, the problem here is when you click outside the image but inside the square of the previous image, then the slide does not change.
This approach, makes no changes in yout javascript but changes the html and some selectors.
In the example below, I wrapped each <img> into a '<div>' and changed the selectors to match with those divisions. Minor stylings too.
So, if you click outside the image but over the div, the slide changes as expected.
$(document).ready(function() {
$.fn.nextOrFirst = function (selector) {
var next = this.next(selector);
return (next.length) ? next : this.prevAll(selector).last();
};
$("#cf2 div.holder").click(function() {
$(this)
.removeClass('visible')
.nextOrFirst()
.addClass('visible');
});
});
body {
font-family: verdana;
font-size: 8pt;
color: #000;
}
#cf2 {
position: relative;
height: 600px;
width: 600px;
margin: 0 auto;
}
#cf2 div.holder {
position: absolute;
left: 0;
height: 600px;
width: 600px;
opacity: 0;
z-index: 0;
-webkit-transition: opacity 1s ease-in-out;
-moz-transition: opacity 1s ease-in-out;
-o-transition: opacity 1s ease-in-out;
transition: opacity 1s ease-in-out;
}
#cf2 div.holder img {
max-height: 600px;
max-width: 600px;
}
#cf2 div.holder.visible {
opacity: 1;
z-index: 1;
}
.hidden {
display: none;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table>
<td valign="center">
<div id="cf2" class="shadow">
<div class="holder visible">
<img src="//danielshultz.github.io/Images/Cute-Door-1.jpg" alt="1"/></div>
<div class="holder"><img src="//danielshultz.github.io/Images/Cute-Door-2.jpg" alt="2"/></div>
<div class="holder"><img src="//danielshultz.github.io/Images/Cute-Door-3.jpg" alt="3"/></div>
</div>
</td>
</table>

when added spin (spin.js) - web page lose functionality

Please, I need help about spin function (using spin.min.js script)
Problem appears when I added it to my web page, web page loge functionality - I can not click on any link and can not mark anything with mouse. I don't know what's the problem, please help me.
SCRIPT IN BODY TAG
<script src="js/vendor/spin.min.js"></script>
HTML
<div class="loading loading-out">
<div id="spin">
</div>
</div>
CSS
.loading{
background: #F7F7F7;
width: 100%;
height: 100%;
position: fixed;
top: 0;
left: 0;
z-index: 500;
.loading-out{
-webkit-opacity: 0;
-moz-opacity: 0;
opacity: 0;
-webkit-transition: all 1s ease;
-moz-transition: all 1s ease;
-ms-transition: all 1s ease;
-o-transition: all 1s ease;
transition: all 1s ease;
#spin{
margin: 0px auto;
position: absolute;
left: 50%;
top: 50%;
JQUERY
$(function()
$(window).load(function() {
// Fadeout loading
$('.loading').addClass('loading-out');
// Hide loading
setTimeout(function() {
$('.loading').hide();
}, 800);
});

Your CSS definitions must be enclosed in {}. Right now it's only { without closing }
Your jQuery anonymous function is missing {}. Change $(function() /* window load */ to $(function() {/* window load */}).
Check dev tools console to see if there is any errors. It may also be that your JS is taking huge amount of memory and browser is still executing JS while you try to interact with it.
Check if you have jQuery loaded before any script that uses $.

Obtaining page maximum height in Jquery

I don't know if I am specific enough,
But I created a lightbox-style fadein background but it appears to me that the background won't reach the very bottom of the page. So when I scroll, the white background appears again.
Here is the demo:
http://jsbin.com/limiyisi/1/
HTML
<body>
<div id="overlay"></div>
<a style="position:absolute;" href="#" class="btn btn-default" data-toggle="active">
Button </a>
<div class="ex-height"></div>
CSS
#overlay {
position:absolute;
width: 100%;
height : 100%;
background: #000;
top: 0;
left: 0;
opacity:0;
transition: opacity .3s;
-moz-transition: opacity .3s;
-webkit-transition: opacity .3s;
}
.backdrop {
opacity: 0.4 !important;
}
.ex-height {
height: 1204px;
}
Jquery
$(function() {
function toggle() {
$('#overlay').toggleClass('backdrop');
}
$('[data-toggle="active"]').click(toggle);
});
Thanks for any helpful advice!

Set the height of the overlay to the document's height:
$('#overlay').toggleClass('backdrop').height($(document).height());

Change the #overlay to
#overlay {
position:absolute;
background: #000;
top: 0;
left: 0;
bottom: 0;
right: 0;
opacity:0;
transition: opacity .3s;
-moz-transition: opacity .3s;
-webkit-transition: opacity .3s;
}
If that doesn't quite work - try changing the bottom and right values to 100%

demo
$(function() {
function toggle() {
var pageHeight = $('html, body').innerHeight();
$('#overlay').toggleClass('backdrop').height( pageHeight );
}
$('[data-toggle="active"]').click(toggle);
});

Fade one image into another using css or jquery

I need to be able to fade in a second image above the initial image on hover. I need to make sure that second image isn't visible initially until it fades in. The other important note is that neither of the images should fade out entirely at any time. I've tried several approaches such as using 1 image, 2 images, jquery animate and css transition.
I've read that it is possible to animate a change of attribute using jquery? If this is true, how could I animate the change of 'src' in img using jquery?
$(".image").mouseenter(function() {
var img = $(this);
var newSrc = img.attr("data-hover-src");
img.attr("src",newSrc);
img.fadeTo('slow', 0.8, function() {
img.attr("src", newSrc);
});
img.fadeTo('slow', 1);
}).mouseleave(function() {
var img = $(this);
var newSrc = img.attr("data-regular-src");
img.fadeTo('slow', 0.8, function() {
img.attr("src", newSrc);
});
img.fadeTo('slow', 1);
});
This is what i'm currently using. It's the closest i've gotten. But you can see the image change which is not desirable.

Using a single html element with background images
HTML - doesn't get simpler than this
<div id="imgHolder"></div>
CSS
#imgHolder {
width: 200px;
height: 200px;
display: block;
position: relative;
}
/*Initial image*/
#imgHolder::before {
content:"";
top: 0;
left: 0;
bottom: 0;
right: 0;
position: absolute;
background-image:url(http://placehold.it/200x200);
-webkit-transition: opacity 1s ease-in-out;
-moz-transition: opacity 1s ease-in-out;
-o-transition: opacity 1s ease-in-out;
transition: opacity 1s ease-in-out;
z-index:10;
}
#imgHolder:hover::before {
opacity:0;
}
#imgHolder::after {
content:"";
background: url(http://placehold.it/200x200/FF0000);
top: 0;
left: 0;
bottom: 0;
right: 0;
position: absolute;
z-index: -1;
}
Demo
OR if you want to use image tags...
Stealing straight from: http://css3.bradshawenterprises.com/cfimg/
HTML
<div id="cf">
<img class="bottom" src="pathetoImg1.jpg" />
<img class="top" src="pathetoImg2.jpg" />
</div>
CSS
#cf {
position:relative;
height:281px;
width:450px;
margin:0 auto;
}
#cf img {
position:absolute;
left:0;
-webkit-transition: opacity 1s ease-in-out;
-moz-transition: opacity 1s ease-in-out;
-o-transition: opacity 1s ease-in-out;
transition: opacity 1s ease-in-out;
}
#cf img.top:hover {
opacity:0;
}
There are many other examples in the link as well to play with, but this will get you started.
Final Opacity
You've mentioned you don't want the initial image to disapear comletely. To do this change opacity:0 to opacity:0.5 or something similar. You'll need to experiment with that value to get the result you want.
Demo with final opacity of 0.8
Dynamic Image Sizes
I think you will be stuck with the two image version for this if just using CSS. HTML is the same.
CSS
#cf {
position:relative;
}
#cf img {
-webkit-transition: opacity 1s ease-in-out;
-moz-transition: opacity 1s ease-in-out;
-o-transition: opacity 1s ease-in-out;
transition: opacity 1s ease-in-out;
}
#cf img.bottom {
z-index:-1;
opacity:0;
position:absolute;
left:0;
}
#cf:hover img.top {
opacity:0.8;
}
#cf:hover img.bottom {
display:block;
opacity:1;
}
Demo