Beautiful Photo Stack Gallery with jQuery and CSS3

In this tutorial we are going to create a nice and fresh image gallery. The idea is to show the albums as a slider, and when an album is chosen, we show the images of that album as a beautiful photo stack. In the photo stack view, we can browse through the images by putting […]
photoStack

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In this tutorial we are going to create a nice and fresh image gallery. The idea is to show the albums as a slider, and when an album is chosen, we show the images of that album as a beautiful photo stack. In the photo stack view, we can browse through the images by putting the top most image behind all the stack with a slick animation.

We will use jQuery and CSS3 properties for the rotated image effect. We will also use the webkit-box-reflect property in order to mirror the boxes in the album view – check out the demo in Google Chrome or Apple Safari to see this wonderful effect.

We will also use a bit of PHP for getting the images from each album.

So, let’s start!

The Markup

In our HTML structure we will have several elements. The main ones are for the album columns with thumbnail and description, and the preview with the photo stack.
The structure for the album view is going to look as follows:

<div id="ps_slider" class="ps_slider">

	<a class="prev disabled"></a>
	<a class="next disabled"></a>
	
	<div id="ps_albums">
	
		<div class="ps_album" style="opacity:0;">
			<img src="albums/album1/thumb/thumb.jpg" alt=""/>
			<div class="ps_desc">
				<h2>Album title</h2>
				<span>Description text</span>
			</div>
		</div>
		
		<div class="ps_album" style="opacity:0;">
			...
		</div>
		
		...
	</div>	
	
</div>

The opacity of the album div is going to be 0 in the beginning, we will then use JavaScript to fade in the columns.
The information that we need to provide in the HTML is the location of each album and its thumbnail images. With our little PHP script we will then get all the images from the respective album.

The structure for the dark overlay and the preview with the photo stack is going to look like this:

<div id="ps_overlay" class="ps_overlay" style="display:none;"></div>

<a id="ps_close" class="ps_close" style="display:none;"></a>

<div id="ps_container" class="ps_container" style="display:none;">
	<a id="ps_next_photo" class="ps_next_photo" style="display:none;"></a>
</div>

We will dynamically insert the pictures of each album into the ps_container div.
Now, let’s take a look at the PHP.

The PHP

Our PHP file will be called from our JavaScript and we will get the information with AJAX call. The PHP looks as follows:

$location 	= 'albums';
$album_name	= $_GET['album_name'];
$files 		= glob($location . '/' . $album_name . '/*.{jpg,gif,png}', GLOB_BRACE);
$encoded 	= json_encode($files);
echo $encoded;
unset($encoded);

The CSS

The style for the gallery is going to contain some CSS3 properties and also a Webkit specific property for a mirror effect.
Let’s start by resetting some paddings and margins and defining the general style for the body:

body, ul, li, h1, h2, h3{
	margin:0;
	padding:0;
}
body{
	background:#121212;
	font-family:Arial, Helvetica, sans-serif;
	font-size:11px;
	color:#fff;
	overflow-x:hidden;
}

We will continue with the style of the preview. The overlay is going to have the following style:

.ps_overlay{
    z-index:90;
    background:#111;
    width:100%;
    height:100%;
    position:fixed;
    top:0px;
    left:0px;
    opacity:0.5;
}

The container for the photo stack will have a defined height and width. We will position it absolutely and center it with the “50%/negative margins” method:

.ps_container{
	width:480px;
	height:350px;
	position:absolute;
	top:50%;
	margin-top:-175px;
	left:50%;
	margin-left:-240px;
	z-index:100;
}

The image will have a thick white border and a nice box shadow. We will center the image relatively to its container but since we will only know the width and height of the images once we dynamically add them, we will set the margins in our JavaScript function:

.ps_container img{
	border:10px solid #fff;
	position:absolute;
	top:50%;
	left:50%;
	-moz-box-shadow:1px 1px 10px #000;
	-webkit-box-shadow:1px 1px 10px #000;
	box-shadow:1px 1px 10px #000;
}

The close button for the preview is going to be fixed at the top right of the window:

a.ps_close{
	background:#000 url(../images/close.png) no-repeat center center;
	cursor:pointer;
	width:56px;
	height:56px;
	position:fixed;
	right:10px;
	top:10px;
	z-index:1000;
	-moz-border-radius:10px;
	-webkit-border-radius:10px;
	border-radius:10px;	
	opacity:0.6;
}

We will show a “next photo” element on top of the current image when the user hovers over it:

a.ps_next_photo{
	position:absolute;
	top:50%;
	left:50%;
	width:56px;
	height:56px;
	margin:-28px 0 0 -28px;
	z-index:200;
	cursor:pointer;
	background:#000 url(../images/next_photo.png) no-repeat 50% 50%;
	opacity:0.6;
    -moz-border-radius:10px;
    -webkit-border-radius:10px;
    border-radius:10px;
}

The hover classes for the last two elements:

a.ps_next_photo:hover,
a.ps_close:hover{
	opacity:0.8;	
}

Now we are going to define the style for the album view and its columns. The slider container will be positioned relatively. With the auto values for the left and right margins we center the container horizontally on the page:

.ps_slider{
	width:845px;
	height:300px;
	position:relative;
	margin:110px auto 0px auto;
}

The navigation elements are going to have the following style:

.ps_slider a.next,
.ps_slider a.prev{
	position:absolute;
	background-color:#000;
    background-position:center center;
    background-repeat:no-repeat;
    border:1px solid #232323;
    width:20px;
    height:20px;
    top:50%;
    margin-top:-10px;
    opacity:0.6;
    -moz-border-radius:5px;
    -webkit-border-radius:5px;
    border-radius:5px;
    cursor:pointer;
    outline:none;
}
.ps_slider a.prev{
    left:-30px;
    background-image:url(../images/prev.png);
}
.ps_slider a.next{
    right:-30px;
    background-image:url(../images/next.png);
}
.ps_slider a.prev:hover,
.ps_slider a.next:hover{
    border:1px solid #333;
    opacity:0.9;
}

We also define a class for the navigation elements when they are disabled:

.ps_slider a.disabled,
.ps_slider a.disabled:hover{
    opacity:0.4;
    border:1px solid #111;
    cursor:default;
}

Each album column is going to have the following style:

.ps_slider .ps_album{
	width:140px;
	height:310px;
	padding:10px;
	background-color:#333;
	border:1px solid #444;
	position:absolute;
	top:0px;
	text-align:center;
	cursor:pointer;
	-moz-box-shadow:1px 1px 4px #000;
	-webkit-box-shadow:1px 1px 4px #000;
	box-shadow:1px 1px 4px #000;
	-webkit-box-reflect:
		below 5px 
		-webkit-gradient(
			linear, 
			left top, 
			left bottom, 
			from(transparent), 
			color-stop(0.6, transparent), 
			to(rgb(18, 18, 18))
		);
}

The last property is the Webkit box reflex that mirrors the columns. We say that it should mirror the element in a gradient like way.

We add a hover class for the whole column:

.ps_slider .ps_album:hover{
		background-color:#383838;
}

The thumbnail image and the content of the column are going to have the following styles:

.ps_slider .ps_album img{
	height:90px;
	border:1px solid #444;
	-moz-box-shadow:1px 1px 4px #000;
	-webkit-box-shadow:1px 1px 4px #000;
	box-shadow:1px 1px 4px #000;
}
.ps_slider .ps_album .ps_desc{
	display:block;
	color:#666;
	background:#111 url(../images/overlay.png) no-repeat bottom right;
	height:200px;
	margin-top:10px;
	text-align:left;
	line-height:20px;
	overflow:hidden;
	text-overflow:ellipsis;
	border:1px solid #393939;
	-moz-box-shadow:0px 0px 2px #000 inset;
	-webkit-box-shadow:0px 0px 2px #000 inset;
	box-shadow:0px 0px 2px #000 inset;
}
.ps_slider .ps_album:hover .ps_desc{
	background-image:none;
}
.ps_slider .ps_album .ps_desc span{
	display:block;
	margin:0px 10px 10px 10px;
	border-top:1px solid #333;
	padding-top:5px;
}
.ps_slider .ps_album .ps_desc h2{
	margin:10px 10px 0px 10px;
	text-align:left;
	padding-bottom:5px;
	font-weight:normal;
	color:#ddd;
	text-shadow:0px 0px 1px #fff;
	border-bottom:1px solid #000;
}

The loading element will show when we click on an album and all the images get loaded in the preview:

.ps_slider .loading{
	background:#121212 url(../images/loading.gif) no-repeat 50% 50%;
	position:absolute;
	top:0px;
	left:0px;
	width:100%;
	height:100%;
	opacity:0.7;
}

For the opacity to work in IE you need to add this filter (with the right value):

filter:progid:DXImageTransform.Microsoft.Alpha(opacity=60);

I did not want to uglify the code.

Let’s add the magic!

The JavaScript

First, we need to define some variables that help us control the album navigation and keep some elements. The variable positions saves the left value for each album column. This depends on the width of the column.

/**
* navR,navL are flags for controlling the albums navigation
* first gives us the position of the album on the left
* positions are the left positions for each of the 5 albums displayed at a time
*/
var navR,navL	= false;
var first		= 1;
var positions 	= {
	'0'		: 0,
	'1' 	: 170,
	'2' 	: 340,
	'3' 	: 510,
	'4' 	: 680
}
var $ps_albums 		= $('#ps_albums');
/**
* number of albums available
*/
var elems			= $ps_albums.children().length;
var $ps_slider		= $('#ps_slider');

We are going to give an initial positioning to the album columns:


/**
* position all the albums on the right side of the window
*/
var hiddenRight 	= $(window).width() - $ps_albums.offset().left;
$ps_albums.children('div').css('left',hiddenRight + 'px');

/**
* move the first 5 albums to the viewport
*/
$ps_albums.children('div:lt(5)').each(
	function(i){
		var $elem = $(this);
		$elem.animate({'left': positions[i] + 'px','opacity':1},800,function(){
			if(elems > 5)
				enableNavRight();
		});
	}
);

For sliding through the albums, we will define what happens when we click on the next or previous button and create two functions for moving left or right:

/**
* next album
*/
$ps_slider.find('.next').bind('click',function(){
	if(!$ps_albums.children('div:nth-child('+parseInt(first+5)+')').length || !navR) return;
	disableNavRight();
	disableNavLeft();
	moveRight();
});

/**
* we move the first album (the one on the left) to the left side of the window
* the next 4 albums slide one position, and finally the next one in the list
* slides in, to fill the space of the first one
*/
function moveRight () {
	var hiddenLeft 	= $ps_albums.offset().left + 163;
	
	var cnt = 0;
	$ps_albums.children('div:nth-child('+first+')').animate({'left': - hiddenLeft + 'px','opacity':0},500,function(){
			var $this = $(this);
			$ps_albums.children('div').slice(first,parseInt(first+4)).each(
				function(i){
					var $elem = $(this);
					$elem.animate({'left': positions[i] + 'px'},800,function(){
						++cnt;
						if(cnt == 4){
							$ps_albums.children('div:nth-child('+parseInt(first+5)+')').animate({'left': positions[cnt] + 'px','opacity':1},500,function(){
								//$this.hide();
								++first;
								if(parseInt(first + 4) < elems)
									enableNavRight();
								enableNavLeft();
							});
						}		
					});
				}
			);		
	});
}

/**
* previous album
*/
$ps_slider.find('.prev').bind('click',function(){
	if(first==1  || !navL) return;
	disableNavRight();
	disableNavLeft();
	moveLeft();
});

/**
* we move the last album (the one on the right) to the right side of the window
* the previous 4 albums slide one position, and finally the previous one in the list
* slides in, to fill the space of the last one
*/
function moveLeft () {
	var hiddenRight 	= $(window).width() - $ps_albums.offset().left;

	var cnt = 0;
	var last= first+4;
	$ps_albums.children('div:nth-child('+last+')').animate({'left': hiddenRight + 'px','opacity':0},500,function(){
			var $this = $(this);
			$ps_albums.children('div').slice(parseInt(last-5),parseInt(last-1)).each(
				function(i){
					var $elem = $(this);
					$elem.animate({'left': positions[i+1] + 'px'},800,function(){
						++cnt;
						if(cnt == 4){
							$ps_albums.children('div:nth-child('+parseInt(last-5)+')').animate({'left': positions[0] + 'px','opacity':1},500,function(){
								//$this.hide();
								--first;
								enableNavRight();
								if(first > 1)
									enableNavLeft();
							});
						}										
					});
				}
			);
	});
}

The next helper functions deal with disabling and enabling the the navigation items:

/**
* disable or enable albums navigation
*/
function disableNavRight () {
	navR = false;
	$ps_slider.find('.next').addClass('disabled');
}
function disableNavLeft () {
	navL = false;
	$ps_slider.find('.prev').addClass('disabled');
}
function enableNavRight () {
	navR = true;
	$ps_slider.find('.next').removeClass('disabled');
}
function enableNavLeft () {
	navL = true;
	$ps_slider.find('.prev').removeClass('disabled');
}		

In the next steps we will define what happens when we open an album. We first make the loading element appear and show the preview after we loaded all the images. The information of the source comes from an AJAX call to our PHP class. For the rotation effect, we use the rotate CSS3 property which we restrict to a certain range of degrees, so that we don’t rotate an image crazily:

var $ps_container 	= $('#ps_container');
var $ps_overlay 	= $('#ps_overlay');
var $ps_close		= $('#ps_close');
/**
* when we click on an album,
* we load with AJAX the list of pictures for that album.
* we randomly rotate them except the last one, which is
* the one the User sees first. We also resize and center each image.
*/
$ps_albums.children('div').bind('click',function(){
	var $elem = $(this);
	var album_name 	= 'album' + parseInt($elem.index() + 1);
	var $loading 	= $('<div />',{className:'loading'});
	$elem.append($loading);
	$ps_container.find('img').remove();
	$.get('photostack.php', {album_name:album_name} , function(data) {
		var items_count	= data.length;
		for(var i = 0; i < items_count; ++i){
			var item_source = data[i];
			var cnt 		= 0;
			$('<img />').load(function(){
				var $image = $(this);
				++cnt;
				resizeCenterImage($image);
				$ps_container.append($image);
				var r		= Math.floor(Math.random()*41)-20;
				if(cnt < items_count){
					$image.css({
						'-moz-transform'	:'rotate('+r+'deg)',
						'-webkit-transform'	:'rotate('+r+'deg)',
						'transform'			:'rotate('+r+'deg)'
					});
				}
				if(cnt == items_count){
					$loading.remove();
					$ps_container.show();
					$ps_close.show();
					$ps_overlay.show();
				}
			}).attr('src',item_source);
		}
	},'json');
});

/**
* when hovering each one of the images, 
* we show the button to navigate through them
*/
$ps_container.live('mouseenter',function(){
	$('#ps_next_photo').show();
}).live('mouseleave',function(){
	$('#ps_next_photo').hide();
});

The nice animation of putting the current image at the back of our stack is defined in the following:

/**
* navigate through the images: 
* the last one (the visible one) becomes the first one.
* we also rotate 0 degrees the new visible picture 
*/
$('#ps_next_photo').bind('click',function(){
	var $current 	= $ps_container.find('img:last');
	var r			= Math.floor(Math.random()*41)-20;
	
	var currentPositions = {
		marginLeft	: $current.css('margin-left'),
		marginTop	: $current.css('margin-top')
	}
	var $new_current = $current.prev();
	
	$current.animate({
		'marginLeft':'250px',
		'marginTop':'-385px'
	},250,function(){
		$(this).insertBefore($ps_container.find('img:first'))
			   .css({
					'-moz-transform'	:'rotate('+r+'deg)',
					'-webkit-transform'	:'rotate('+r+'deg)',
					'transform'			:'rotate('+r+'deg)'
				})
			   .animate({
					'marginLeft':currentPositions.marginLeft,
					'marginTop'	:currentPositions.marginTop
					},250,function(){
						$new_current.css({
							'-moz-transform'	:'rotate(0deg)',
							'-webkit-transform'	:'rotate(0deg)',
							'transform'			:'rotate(0deg)'
						});
			   });
	});
});

We animate the top and left margins with certain values that create the “putting back” effect. Since our structure always shows the last image on the top, we will also need to insert the moving image at the beginning, so that it appear as last one in the stack.

Clicking on the close element brings us back to the album view:

/**
* close the images view, and go back to albums
*/
$('#ps_close').bind('click',function(){
	$ps_container.hide();
	$ps_close.hide();
	$ps_overlay.fadeOut(400);
});

Our famous resize function resizes the image according to the given container width and height.
In the end of the function we apply the sizes and we also apply the negative margins – remember, that’s the way we can center an absolute positioned element; we defined top and left in the CSS to be 50%, so now we need to pull it to the right place with these margin values.

/**
* resize and center the images
*/
function resizeCenterImage($image){
	var theImage 	= new Image();
	theImage.src 	= $image.attr("src");
	var imgwidth 	= theImage.width;
	var imgheight 	= theImage.height;
	
	var containerwidth  = 460;
	var containerheight = 330;
	
	if(imgwidth	> containerwidth){
		var newwidth = containerwidth;
		var ratio = imgwidth / containerwidth;
		var newheight = imgheight / ratio;
		if(newheight > containerheight){
			var newnewheight = containerheight;
			var newratio = newheight/containerheight;
			var newnewwidth =newwidth/newratio;
			theImage.width = newnewwidth;
			theImage.height= newnewheight;
		}
		else{
			theImage.width = newwidth;
			theImage.height= newheight;
		}
	}
	else if(imgheight > containerheight){
		var newheight = containerheight;
		var ratio = imgheight / containerheight;
		var newwidth = imgwidth / ratio;
		if(newwidth > containerwidth){
			var newnewwidth = containerwidth;
			var newratio = newwidth/containerwidth;
			var newnewheight =newheight/newratio;
			theImage.height = newnewheight;
			theImage.width= newnewwidth;
		}
		else{
			theImage.width = newwidth;
			theImage.height= newheight;
		}
	}
	$image.css({
		'width'			:theImage.width,
		'height'		:theImage.height,
		'margin-top'	:-(theImage.height/2)-10+'px',
		'margin-left'	:-(theImage.width/2)-10+'px'	
	});
}
});

And that’s it! We hope you enjoyed this tutorial and find it useful!

P.S. Because of some Webkit properties, this demo is a really nice experience if you use a Webkit browser like Chrome or Safari. It will also be fully functional in all latest browsers like Firefox and IE (without those beautiful properties, though).

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Tagged with:

Mary Lou

ML is a freelance web designer and developer with a passion for interaction design. She studied Cognitive Science and Computational Logic and has a weakness for the smell of freshly ground peppercorns.

http://www.codrops.com

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Comments are closed.
  1. Mary
    I’d love to add three menus that when clicked will show a modal overlay with information in it. I have been able to add the links but when clicking i am not able to display the modal overlay. Can you pls help?
    Thank you!
    R

  2. please help me, I tried adding new photos but it won’t show up. The directory is correct, I don’t get it why won’t it show up!

  3. Hi,

    Thank you very much for this gallery !
    But i have a problem, the images appear randomly and i would like appear in alphabetic or numeric order. It is possible ?

    Thanks !

    PS : sorry for my bad english …

  4. I too am having a problem. If I customise one of the containers with my own images (even if the are smaller than the original images) they do not show when I click through, however the original images in the script do?

    Where are the images stored? Why does it populate with the old images but do nothing with new images added?

    Check http://www.dclandscapes.com/photostack.html to see. Any help would be appreciated

  5. Very good tutorial. The functionality of this is very awesome.

  6. Your tutorials are a treasure! I am not sure if the DWTFYWWI license is legally bounding (not sure even if it’s a legal document), however the intention it’s clear to waive the copyright and make it public available for any use, so it should be somewhat equal to Public Domain License. However, for the intentions of “doing whatever anybody wants to do with the code” (kindly paraphrased) it seems more appropriate the MIT license, because it is explicit about the sub-licenses and sale of the software/code (but while retaining a copyright notice attributing the work to the author). It is understandable that under Public Domain you rather prefer to release it without requiring any copyright notice; still considering that your code may be used commercially and there could be others that will build on it, they are better protected by MIT kind of license than Public Domain license(s) (with the price of attributing the copyright to you). 🙂 This is legal mambo jumbo… what I wanted to point out it’s in fact related to your declared “anti-copyright” position. In my humble opinion the best possible anti-copyright position it’s to… copyright it. Prove of this way are well known projects like Linux or Apache… If attribution it’s a problem for you, my best guess will be Apache License. Leaving aside the legal issue, I would like to thank you for your tutorials and demos, I will certainly use your examples and build upon them in my commercial adventure as web designer and with your permission I would like to give credit where credit is due. Thanks again.

  7. Beautifully done!

    – Is it possible to re-size images so they take a bit more of the screen (and also have different size images)?

    – Is it possible to have the “next” button somewhere else as opposed to in the middle of the photo?

    – Is it possible to have a “previous” button?

    Thank you,
    Motti

  8. Hello,

    A very nice toturial you have and thanks for sharing it to us.

    By the way, im having trouble with the image to view in screen.. i already upload it to my webpage can you give me some idea on how to view my image in mypage? i tried to open the php file in my webpage but it returns “false” instead of “[]”

  9. There seems to be an IE bug..
    Its really frustrating, because its working amazing in all other browsers, i’m fine with IE not doing the rotation, but in IE the
    “stack view” works only the very first time you click on a album, clicking an other album afterwards, the mask opacity is ignored and clicking the same album a second time it does nothing..just a spinning loader..
    I know its the ajax $.get method because if you clear the browser cache it works again(only one time).
    Hope some body knows the fix!!

    thnx

  10. i couldn’t make work i didnt see anywhere javascript is added

    i dond know what is problem i am just trying demo yet, i am clicking picture it is keep loading pictures doesnt come up
    can you e-mail me what is problem
    thanks

  11. Hello, I love your gallery and would love to use it on my portfolio website. However, I would like to have your gallery inside of another jQuery slider that is a tab that pulls down from the top right corner of my site. (You can’t see the tab right now, because the photostack is covering it up.) The content within the tab is hidden in a panel that does not get displayed until the user clicks on the tab. I placed the photostack inside of the panel for the tab, but it won’t stay hidden. Any ideas on how to make this work? I would love any advice/ideas asap, as I this is the last item I need to do to finish my website. Thanks!

  12. Many thanks for this tutorial, very clear, well explained, clean… and amazing effect.

    One question, I want to use it twice on a web, I mean, for shows and for projects , they are in the same page as this web just have one page, but different div’s. It just work in one, how could I make it work in both div’s?

    Many thanks