以下是 js扩大预览图特效代码 的示例演示效果:
部分效果截图:
HTML代码(index.html):
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>js扩大预览图特效</title>
<link rel="stylesheet" type="text/css" href="css/default.css" />
<link rel="stylesheet" type="text/css" href="css/component.css" />
<script src="js/modernizr.custom.js"></script>
</head>
<body>
<div class="container">
<div class="main">
<ul id="og-grid" class="og-grid">
<li>
<a href="#" data-largesrc="images/1.jpg" data-title="Azuki bean" data-description="Swiss chard pumpkin bunya nuts maize plantain aubergine napa cabbage soko coriander sweet pepper water spinach winter purslane shallot tigernut lentil beetroot.">
<img src="images/thumbs/1.jpg" alt="img01"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/2.jpg" data-title="Veggies sunt bona vobis" data-description="Komatsuna prairie turnip wattle seed artichoke mustard horseradish taro rutabaga ricebean carrot black-eyed pea turnip greens beetroot yarrow watercress kombu.">
<img src="images/thumbs/2.jpg" alt="img02"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/3.jpg" data-title="Dandelion horseradish" data-description="Cabbage bamboo shoot broccoli rabe chickpea chard sea lettuce lettuce ricebean artichoke earthnut pea aubergine okra brussels sprout avocado tomato.">
<img src="images/thumbs/3.jpg" alt="img03"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/1.jpg" data-title="Azuki bean" data-description="Swiss chard pumpkin bunya nuts maize plantain aubergine napa cabbage soko coriander sweet pepper water spinach winter purslane shallot tigernut lentil beetroot.">
<img src="images/thumbs/1.jpg" alt="img01"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/2.jpg" data-title="Veggies sunt bona vobis" data-description="Komatsuna prairie turnip wattle seed artichoke mustard horseradish taro rutabaga ricebean carrot black-eyed pea turnip greens beetroot yarrow watercress kombu.">
<img src="images/thumbs/2.jpg" alt="img02"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/3.jpg" data-title="Dandelion horseradish" data-description="Cabbage bamboo shoot broccoli rabe chickpea chard sea lettuce lettuce ricebean artichoke earthnut pea aubergine okra brussels sprout avocado tomato.">
<img src="images/thumbs/3.jpg" alt="img03"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/1.jpg" data-title="Azuki bean" data-description="Swiss chard pumpkin bunya nuts maize plantain aubergine napa cabbage soko coriander sweet pepper water spinach winter purslane shallot tigernut lentil beetroot.">
<img src="images/thumbs/1.jpg" alt="img01"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/2.jpg" data-title="Veggies sunt bona vobis" data-description="Komatsuna prairie turnip wattle seed artichoke mustard horseradish taro rutabaga ricebean carrot black-eyed pea turnip greens beetroot yarrow watercress kombu.">
<img src="images/thumbs/2.jpg" alt="img02"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/3.jpg" data-title="Dandelion horseradish" data-description="Cabbage bamboo shoot broccoli rabe chickpea chard sea lettuce lettuce ricebean artichoke earthnut pea aubergine okra brussels sprout avocado tomato.">
<img src="images/thumbs/3.jpg" alt="img03"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/1.jpg" data-title="Azuki bean" data-description="Swiss chard pumpkin bunya nuts maize plantain aubergine napa cabbage soko coriander sweet pepper water spinach winter purslane shallot tigernut lentil beetroot.">
<img src="images/thumbs/1.jpg" alt="img01"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/2.jpg" data-title="Veggies sunt bona vobis" data-description="Komatsuna prairie turnip wattle seed artichoke mustard horseradish taro rutabaga ricebean carrot black-eyed pea turnip greens beetroot yarrow watercress kombu.">
<img src="images/thumbs/2.jpg" alt="img02"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/3.jpg" data-title="Dandelion horseradish" data-description="Cabbage bamboo shoot broccoli rabe chickpea chard sea lettuce lettuce ricebean artichoke earthnut pea aubergine okra brussels sprout avocado tomato.">
<img src="images/thumbs/3.jpg" alt="img03"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/1.jpg" data-title="Azuki bean" data-description="Swiss chard pumpkin bunya nuts maize plantain aubergine napa cabbage soko coriander sweet pepper water spinach winter purslane shallot tigernut lentil beetroot.">
<img src="images/thumbs/1.jpg" alt="img01"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/2.jpg" data-title="Veggies sunt bona vobis" data-description="Komatsuna prairie turnip wattle seed artichoke mustard horseradish taro rutabaga ricebean carrot black-eyed pea turnip greens beetroot yarrow watercress kombu.">
<img src="images/thumbs/2.jpg" alt="img02"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/3.jpg" data-title="Dandelion horseradish" data-description="Cabbage bamboo shoot broccoli rabe chickpea chard sea lettuce lettuce ricebean artichoke earthnut pea aubergine okra brussels sprout avocado tomato.">
<img src="images/thumbs/3.jpg" alt="img03"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/1.jpg" data-title="Azuki bean" data-description="Swiss chard pumpkin bunya nuts maize plantain aubergine napa cabbage soko coriander sweet pepper water spinach winter purslane shallot tigernut lentil beetroot.">
<img src="images/thumbs/1.jpg" alt="img01"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/2.jpg" data-title="Veggies sunt bona vobis" data-description="Komatsuna prairie turnip wattle seed artichoke mustard horseradish taro rutabaga ricebean carrot black-eyed pea turnip greens beetroot yarrow watercress kombu.">
<img src="images/thumbs/2.jpg" alt="img02"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/3.jpg" data-title="Dandelion horseradish" data-description="Cabbage bamboo shoot broccoli rabe chickpea chard sea lettuce lettuce ricebean artichoke earthnut pea aubergine okra brussels sprout avocado tomato.">
<img src="images/thumbs/3.jpg" alt="img03"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/1.jpg" data-title="Azuki bean" data-description="Swiss chard pumpkin bunya nuts maize plantain aubergine napa cabbage soko coriander sweet pepper water spinach winter purslane shallot tigernut lentil beetroot.">
<img src="images/thumbs/1.jpg" alt="img01"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/2.jpg" data-title="Veggies sunt bona vobis" data-description="Komatsuna prairie turnip wattle seed artichoke mustard horseradish taro rutabaga ricebean carrot black-eyed pea turnip greens beetroot yarrow watercress kombu.">
<img src="images/thumbs/2.jpg" alt="img02"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/3.jpg" data-title="Dandelion horseradish" data-description="Cabbage bamboo shoot broccoli rabe chickpea chard sea lettuce lettuce ricebean artichoke earthnut pea aubergine okra brussels sprout avocado tomato.">
<img src="images/thumbs/3.jpg" alt="img03"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/1.jpg" data-title="Azuki bean" data-description="Swiss chard pumpkin bunya nuts maize plantain aubergine napa cabbage soko coriander sweet pepper water spinach winter purslane shallot tigernut lentil beetroot.">
<img src="images/thumbs/1.jpg" alt="img01"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/2.jpg" data-title="Veggies sunt bona vobis" data-description="Komatsuna prairie turnip wattle seed artichoke mustard horseradish taro rutabaga ricebean carrot black-eyed pea turnip greens beetroot yarrow watercress kombu.">
<img src="images/thumbs/2.jpg" alt="img02"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/3.jpg" data-title="Dandelion horseradish" data-description="Cabbage bamboo shoot broccoli rabe chickpea chard sea lettuce lettuce ricebean artichoke earthnut pea aubergine okra brussels sprout avocado tomato.">
<img src="images/thumbs/3.jpg" alt="img03"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/1.jpg" data-title="Azuki bean" data-description="Swiss chard pumpkin bunya nuts maize plantain aubergine napa cabbage soko coriander sweet pepper water spinach winter purslane shallot tigernut lentil beetroot.">
<img src="images/thumbs/1.jpg" alt="img01"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/2.jpg" data-title="Veggies sunt bona vobis" data-description="Komatsuna prairie turnip wattle seed artichoke mustard horseradish taro rutabaga ricebean carrot black-eyed pea turnip greens beetroot yarrow watercress kombu.">
<img src="images/thumbs/2.jpg" alt="img02"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/3.jpg" data-title="Dandelion horseradish" data-description="Cabbage bamboo shoot broccoli rabe chickpea chard sea lettuce lettuce ricebean artichoke earthnut pea aubergine okra brussels sprout avocado tomato.">
<img src="images/thumbs/3.jpg" alt="img03"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/1.jpg" data-title="Azuki bean" data-description="Swiss chard pumpkin bunya nuts maize plantain aubergine napa cabbage soko coriander sweet pepper water spinach winter purslane shallot tigernut lentil beetroot.">
<img src="images/thumbs/1.jpg" alt="img01"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/2.jpg" data-title="Veggies sunt bona vobis" data-description="Komatsuna prairie turnip wattle seed artichoke mustard horseradish taro rutabaga ricebean carrot black-eyed pea turnip greens beetroot yarrow watercress kombu.">
<img src="images/thumbs/2.jpg" alt="img02"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/3.jpg" data-title="Dandelion horseradish" data-description="Cabbage bamboo shoot broccoli rabe chickpea chard sea lettuce lettuce ricebean artichoke earthnut pea aubergine okra brussels sprout avocado tomato.">
<img src="images/thumbs/3.jpg" alt="img03"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/1.jpg" data-title="Azuki bean" data-description="Swiss chard pumpkin bunya nuts maize plantain aubergine napa cabbage soko coriander sweet pepper water spinach winter purslane shallot tigernut lentil beetroot.">
<img src="images/thumbs/1.jpg" alt="img01"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/2.jpg" data-title="Veggies sunt bona vobis" data-description="Komatsuna prairie turnip wattle seed artichoke mustard horseradish taro rutabaga ricebean carrot black-eyed pea turnip greens beetroot yarrow watercress kombu.">
<img src="images/thumbs/2.jpg" alt="img02"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/3.jpg" data-title="Dandelion horseradish" data-description="Cabbage bamboo shoot broccoli rabe chickpea chard sea lettuce lettuce ricebean artichoke earthnut pea aubergine okra brussels sprout avocado tomato.">
<img src="images/thumbs/3.jpg" alt="img03"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/1.jpg" data-title="Azuki bean" data-description="Swiss chard pumpkin bunya nuts maize plantain aubergine napa cabbage soko coriander sweet pepper water spinach winter purslane shallot tigernut lentil beetroot.">
<img src="images/thumbs/1.jpg" alt="img01"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/2.jpg" data-title="Veggies sunt bona vobis" data-description="Komatsuna prairie turnip wattle seed artichoke mustard horseradish taro rutabaga ricebean carrot black-eyed pea turnip greens beetroot yarrow watercress kombu.">
<img src="images/thumbs/2.jpg" alt="img02"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/3.jpg" data-title="Dandelion horseradish" data-description="Cabbage bamboo shoot broccoli rabe chickpea chard sea lettuce lettuce ricebean artichoke earthnut pea aubergine okra brussels sprout avocado tomato.">
<img src="images/thumbs/3.jpg" alt="img03"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/1.jpg" data-title="Azuki bean" data-description="Swiss chard pumpkin bunya nuts maize plantain aubergine napa cabbage soko coriander sweet pepper water spinach winter purslane shallot tigernut lentil beetroot.">
<img src="images/thumbs/1.jpg" alt="img01"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/2.jpg" data-title="Veggies sunt bona vobis" data-description="Komatsuna prairie turnip wattle seed artichoke mustard horseradish taro rutabaga ricebean carrot black-eyed pea turnip greens beetroot yarrow watercress kombu.">
<img src="images/thumbs/2.jpg" alt="img02"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/3.jpg" data-title="Dandelion horseradish" data-description="Cabbage bamboo shoot broccoli rabe chickpea chard sea lettuce lettuce ricebean artichoke earthnut pea aubergine okra brussels sprout avocado tomato.">
<img src="images/thumbs/3.jpg" alt="img03"/>
</a>
</li>
<li>
<a href="#" data-largesrc="images/1.jpg" data-title="Azuki bean" data-description="Swiss chard pumpkin bunya nuts maize plantain aubergine napa cabbage soko coriander sweet pepper water spinach winter purslane shallot tigernut lentil beetroot.">
<img src="images/thumbs/1.jpg" alt="img01"/>
</a>
</li>
</ul>
</div>
</div><!-- /container -->
<script src="js/jquery-1.9.1.js"></script>
<script src="js/grid.js"></script>
<script>
$(function() {
Grid.init();
});
</script>
</body>
</html>
JS代码(grid.js):
/** debouncedresize:special jQuery event that happens once after a window resize** latest version and complete README available on Github:* https://github.com/louisremi/jquery-smartresize/blob/master/jquery.debouncedresize.js** Copyright 2011 @louis_remi* Licensed under the MIT license.*/
var $event = $.event,$special,resizeTimeout;
$special = $event.special.debouncedresize ={
setup:function(){
$( this ).on( "resize",$special.handler );
}
,teardown:function(){
$( this ).off( "resize",$special.handler );
}
,handler:function( event,execAsap ){
// Save the contextvar context = this,args = arguments,dispatch = function(){
// set correct event typeevent.type = "debouncedresize";
$event.dispatch.apply( context,args );
}
;
if ( resizeTimeout ){
clearTimeout( resizeTimeout );
}
execAsap ?dispatch():resizeTimeout = setTimeout( dispatch,$special.threshold );
}
,threshold:250}
;
// ======================= imagesLoaded Plugin ===============================// https://github.com/desandro/imagesloaded// $('#my-container').imagesLoaded(myFunction)// execute a callback when all images have loaded.// needed because .load() doesn't work on cached images// callback function gets image collection as argument// this is the container// original:MIT license. Paul Irish. 2010.// contributors:Oren Solomianik,David DeSandro,Yiannis Chatzikonstantinou// blank image data-uri bypasses webkit log warning (thx doug jones)var BLANK = 'data:image/gif;
base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==';
$.fn.imagesLoaded = function( callback ){
var $this = this,deferred = $.isFunction($.Deferred) ? $.Deferred():0,hasNotify = $.isFunction(deferred.notify),$images = $this.find('img').add( $this.filter('img') ),loaded = [],proper = [],broken = [];
// Register deferred callbacksif ($.isPlainObject(callback)){
$.each(callback,function (key,value){
if (key === 'callback'){
callback = value;
}
else if (deferred){
deferred[key](value);
}
}
);
}
function doneLoading(){
var $proper = $(proper),$broken = $(broken);
if ( deferred ){
if ( broken.length ){
deferred.reject( $images,$proper,$broken );
}
else{
deferred.resolve( $images );
}
}
if ( $.isFunction( callback ) ){
callback.call( $this,$images,$proper,$broken );
}
}
function imgLoaded( img,isBroken ){
// don't proceed if BLANK image,or image is already loadedif ( img.src === BLANK || $.inArray( img,loaded ) !== -1 ){
return;
}
// store element in loaded images arrayloaded.push( img );
// keep track of broken and properly loaded imagesif ( isBroken ){
broken.push( img );
}
else{
proper.push( img );
}
// cache image and its state for future calls$.data( img,'imagesLoaded',{
isBroken:isBroken,src:img.src}
);
// trigger deferred progress method if presentif ( hasNotify ){
deferred.notifyWith( $(img),[ isBroken,$images,$(proper),$(broken) ] );
}
// call doneLoading and clean listeners if all images are loadedif ( $images.length === loaded.length ){
setTimeout( doneLoading );
$images.unbind( '.imagesLoaded' );
}
}
// if no images,trigger immediatelyif ( !$images.length ){
doneLoading();
}
else{
$images.bind( 'load.imagesLoaded error.imagesLoaded',function( event ){
// trigger imgLoadedimgLoaded( event.target,event.type === 'error' );
}
).each( function( i,el ){
var src = el.src;
// find out if this image has been already checked for status// if it was,and src has not changed,call imgLoaded on itvar cached = $.data( el,'imagesLoaded' );
if ( cached && cached.src === src ){
imgLoaded( el,cached.isBroken );
return;
}
// if complete is true and browser supports natural sizes,try// to check for image status manuallyif ( el.complete && el.naturalWidth !== undefined ){
imgLoaded( el,el.naturalWidth === 0 || el.naturalHeight === 0 );
return;
}
// cached images don't fire load sometimes,so we reset src,but only when// dealing with IE,or image is complete (loaded) and failed manual check// webkit hack from http://groups.google.com/group/jquery-dev/browse_thread/thread/eee6ab7b2da50e1fif ( el.readyState || el.complete ){
el.src = BLANK;
el.src = src;
}
}
);
}
return deferred ? deferred.promise( $this ):$this;
}
;
var Grid = (function(){
// list of itemsvar $grid = $( '#og-grid' ),// the items$items = $grid.children( 'li' ),// current expanded item's indexcurrent = -1,// position (top) of the expanded item// used to know if the preview will expand in a different rowpreviewPos = -1,// extra amount of pixels to scroll the windowscrollExtra = 0,// extra margin when expanded (between preview overlay and the next items)marginExpanded = 10,$window = $( window ),winsize,$body = $( 'html,body' ),// transitionend eventstransEndEventNames ={
'WebkitTransition':'webkitTransitionEnd','MozTransition':'transitionend','OTransition':'oTransitionEnd','msTransition':'MSTransitionEnd','transition':'transitionend'}
,transEndEventName = transEndEventNames[ Modernizr.prefixed( 'transition' ) ],// support for csstransitionssupport = Modernizr.csstransitions,// default settingssettings ={
minHeight:500,speed:350,easing:'ease'}
;
function init( config ){
// the settings..settings = $.extend( true,{
}
,settings,config );
// preload all images$grid.imagesLoaded( function(){
// save item´s size and offsetsaveItemInfo( true );
// get window´s sizegetWinSize();
// initialize some eventsinitEvents();
}
);
}
// saves the item´s offset top and height (if saveheight is true)function saveItemInfo( saveheight ){
$items.each( function(){
var $item = $( this );
$item.data( 'offsetTop',$item.offset().top );
if( saveheight ){
$item.data( 'height',$item.height() );
}
}
);
}
function initEvents(){
// when clicking an item,show the preview with the item´s info and large image.// close the item if already expanded.// also close if clicking on the item´s cross$items.on( 'click','span.og-close',function(){
hidePreview();
return false;
}
).children( 'a' ).on( 'click',function(e){
var $item = $( this ).parent();
// check if item already openedcurrent === $item.index() ? hidePreview():showPreview( $item );
return false;
}
);
// on window resize get the window´s size again// reset some values..$window.on( 'debouncedresize',function(){
scrollExtra = 0;
previewPos = -1;
// save item´s offsetsaveItemInfo();
getWinSize();
var preview = $.data( this,'preview' );
if( typeof preview != 'undefined' ){
hidePreview();
}
}
);
}
function getWinSize(){
winsize ={
width:$window.width(),height:$window.height()}
;
}
function showPreview( $item ){
var preview = $.data( this,'preview' ),// item´s offset topposition = $item.data( 'offsetTop' );
scrollExtra = 0;
// if a preview exists and previewPos is different (different row) from item´s top then close itif( typeof preview != 'undefined' ){
// not in the same rowif( previewPos !== position ){
// if position > previewPos then we need to take te current preview´s height in consideration when scrolling the windowif( position > previewPos ){
scrollExtra = preview.height;
}
hidePreview();
}
// same rowelse{
preview.update( $item );
return false;
}
}
// update previewPospreviewPos = position;
// initialize new preview for the clicked itempreview = $.data( this,'preview',new Preview( $item ) );
// expand preview overlaypreview.open();
}
function hidePreview(){
current = -1;
var preview = $.data( this,'preview' );
preview.close();
$.removeData( this,'preview' );
}
// the preview obj / overlayfunction Preview( $item ){
this.$item = $item;
this.expandedIdx = this.$item.index();
this.create();
this.update();
}
Preview.prototype ={
create:function(){
// create Preview structure:this.$title = $( '<h3></h3>' );
this.$description = $( '<p></p>' );
this.$href = $( '<a href="#">Visit website</a>' );
this.$details = $( '<div class="og-details"></div>' ).append( this.$title,this.$description,this.$href );
this.$loading = $( '<div class="og-loading"></div>' );
this.$fullimage = $( '<div class="og-fullimg"></div>' ).append( this.$loading );
this.$closePreview = $( '<span class="og-close"></span>' );
this.$previewInner = $( '<div class="og-expander-inner"></div>' ).append( this.$closePreview,this.$fullimage,this.$details );
this.$previewEl = $( '<div class="og-expander"></div>' ).append( this.$previewInner );
// append preview element to the itemthis.$item.append( this.getEl() );
// set the transitions for the preview and the itemif( support ){
this.setTransition();
}
}
,update:function( $item ){
if( $item ){
this.$item = $item;
}
// if already expanded remove class "og-expanded" from current item and add it to new itemif( current !== -1 ){
var $currentItem = $items.eq( current );
$currentItem.removeClass( 'og-expanded' );
this.$item.addClass( 'og-expanded' );
// position the preview correctlythis.positionPreview();
}
// update current valuecurrent = this.$item.index();
// update preview´s contentvar $itemEl = this.$item.children( 'a' ),eldata ={
href:$itemEl.attr( 'href' ),largesrc:$itemEl.data( 'largesrc' ),title:$itemEl.data( 'title' ),description:$itemEl.data( 'description' )}
;
this.$title.html( eldata.title );
this.$description.html( eldata.description );
this.$href.attr( 'href',eldata.href );
var self = this;
// remove the current image in the previewif( typeof self.$largeImg != 'undefined' ){
self.$largeImg.remove();
}
// preload large image and add it to the preview// for smaller screens we don´t display the large image (the media query will hide the fullimage wrapper)if( self.$fullimage.is( ':visible' ) ){
this.$loading.show();
$( '<img/>' ).load( function(){
var $img = $( this );
if( $img.attr( 'src' ) === self.$item.children('a').data( 'largesrc' ) ){
self.$loading.hide();
self.$fullimage.find( 'img' ).remove();
self.$largeImg = $img.fadeIn( 350 );
self.$fullimage.append( self.$largeImg );
}
}
).attr( 'src',eldata.largesrc );
}
}
,open:function(){
setTimeout( $.proxy( function(){
// set the height for the preview and the itemthis.setHeights();
// scroll to position the preview in the right placethis.positionPreview();
}
,this ),25 );
}
,close:function(){
var self = this,onEndFn = function(){
if( support ){
$( this ).off( transEndEventName );
}
self.$item.removeClass( 'og-expanded' );
self.$previewEl.remove();
}
;
setTimeout( $.proxy( function(){
if( typeof this.$largeImg !== 'undefined' ){
this.$largeImg.fadeOut( 'fast' );
}
this.$previewEl.css( 'height',0 );
// the current expanded item (might be different from this.$item)var $expandedItem = $items.eq( this.expandedIdx );
$expandedItem.css( 'height',$expandedItem.data( 'height' ) ).on( transEndEventName,onEndFn );
if( !support ){
onEndFn.call();
}
}
,this ),25 );
return false;
}
,calcHeight:function(){
var heightPreview = winsize.height - this.$item.data( 'height' ) - marginExpanded,itemHeight = winsize.height;
if( heightPreview < settings.minHeight ){
heightPreview = settings.minHeight;
itemHeight = settings.minHeight + this.$item.data( 'height' ) + marginExpanded;
}
this.height = heightPreview;
this.itemHeight = itemHeight;
}
,setHeights:function(){
var self = this,onEndFn = function(){
if( support ){
self.$item.off( transEndEventName );
}
self.$item.addClass( 'og-expanded' );
}
;
this.calcHeight();
this.$previewEl.css( 'height',this.height );
this.$item.css( 'height',this.itemHeight ).on( transEndEventName,onEndFn );
if( !support ){
onEndFn.call();
}
}
,positionPreview:function(){
// scroll page// case 1:preview height + item height fits in window´s height// case 2:preview height + item height does not fit in window´s height and preview height is smaller than window´s height// case 3:preview height + item height does not fit in window´s height and preview height is bigger than window´s heightvar position = this.$item.data( 'offsetTop' ),previewOffsetT = this.$previewEl.offset().top - scrollExtra,scrollVal = this.height + this.$item.data( 'height' ) + marginExpanded <= winsize.height ? position:this.height < winsize.height ? previewOffsetT - ( winsize.height - this.height ):previewOffsetT;
$body.animate({
scrollTop:scrollVal}
,settings.speed );
}
,setTransition:function(){
this.$previewEl.css( 'transition','height ' + settings.speed + 'ms ' + settings.easing );
this.$item.css( 'transition','height ' + settings.speed + 'ms ' + settings.easing );
}
,getEl:function(){
return this.$previewEl;
}
}
return{
init:init}
;
}
)();
JS代码(modernizr.custom.js):
/* Modernizr 2.6.2 (Custom Build) | MIT & BSD * Build:http://modernizr.com/download/#-csstransitions-shiv-cssclasses-prefixed-testprop-testallprops-domprefixes-load */
;
window.Modernizr=function(a,b,c){
function x(a){
j.cssText=a}
function y(a,b){
return x(prefixes.join(a+";
")+(b||""))}
function z(a,b){
return typeof a===b}
function A(a,b){
return!!~(""+a).indexOf(b)}
function B(a,b){
for(var d in a){
var e=a[d];
if(!A(e,"-")&&j[e]!==c)return b=="pfx"?e:!0}
return!1}
function C(a,b,d){
for(var e in a){
var f=b[a[e]];
if(f!==c)return d===!1?a[e]:z(f,"function")?f.bind(d||b):f}
return!1}
function D(a,b,c){
var d=a.charAt(0).toUpperCase()+a.slice(1),e=(a+" "+n.join(d+" ")+d).split(" ");
return z(b,"string")||z(b,"undefined")?B(e,b):(e=(a+" "+o.join(d+" ")+d).split(" "),C(e,b,c))}
var d="2.6.2",e={
}
,f=!0,g=b.documentElement,h="modernizr",i=b.createElement(h),j=i.style,k,l={
}
.toString,m="Webkit Moz O ms",n=m.split(" "),o=m.toLowerCase().split(" "),p={
}
,q={
}
,r={
}
,s=[],t=s.slice,u,v={
}
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!z(v,"undefined")&&!z(v.call,"undefined")?w=function(a,b){
return v.call(a,b)}
:w=function(a,b){
return b in a&&z(a.constructor.prototype[b],"undefined")}
,Function.prototype.bind||(Function.prototype.bind=function(b){
var c=this;
if(typeof c!="function")throw new TypeError;
var d=t.call(arguments,1),e=function(){
if(this instanceof e){
var a=function(){
}
;
a.prototype=c.prototype;
var f=new a,g=c.apply(f,d.concat(t.call(arguments)));
return Object(g)===g?g:f}
return c.apply(b,d.concat(t.call(arguments)))}
;
return e}
),p.csstransitions=function(){
return D("transition")}
;
for(var E in p)w(p,E)&&(u=E.toLowerCase(),e[u]=p[E](),s.push((e[u]?"":"no-")+u));
return e.addTest=function(a,b){
if(typeof a=="object")for(var d in a)w(a,d)&&e.addTest(d,a[d]);
else{
a=a.toLowerCase();
if(e[a]!==c)return e;
b=typeof b=="function"?b():b,typeof f!="undefined"&&f&&(g.className+=" "+(b?"":"no-")+a),e[a]=b}
return e}
,x(""),i=k=null,function(a,b){
function k(a,b){
var c=a.createElement("p"),d=a.getElementsByTagName("head")[0]||a.documentElement;
return c.innerHTML="x<style>"+b+"</style>",d.insertBefore(c.lastChild,d.firstChild)}
function l(){
var a=r.elements;
return typeof a=="string"?a.split(" "):a}
function m(a){
var b=i[a[g]];
return b||(b={
}
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function n(a,c,f){
c||(c=b);
if(j)return c.createElement(a);
f||(f=m(c));
var g;
return f.cache[a]?g=f.cache[a].cloneNode():e.test(a)?g=(f.cache[a]=f.createElem(a)).cloneNode():g=f.createElem(a),g.canHaveChildren&&!d.test(a)?f.frag.appendChild(g):g}
function o(a,c){
a||(a=b);
if(j)return a.createDocumentFragment();
c=c||m(a);
var d=c.frag.cloneNode(),e=0,f=l(),g=f.length;
for(;
e<g;
e++)d.createElement(f[e]);
return d}
function p(a,b){
b.cache||(b.cache={
}
,b.createElem=a.createElement,b.createFrag=a.createDocumentFragment,b.frag=b.createFrag()),a.createElement=function(c){
return r.shivMethods?n(c,a,b):b.createElem(c)}
,a.createDocumentFragment=Function("h,f","return function(){
var n=f.cloneNode(),c=n.createElement;
h.shivMethods&&("+l().join().replace(/\w+/g,function(a){
return b.createElem(a),b.frag.createElement(a),'c("'+a+'")'}
)+");
return n}
")(r,b.frag)}
function q(a){
a||(a=b);
var c=m(a);
return r.shivCSS&&!f&&!c.hasCSS&&(c.hasCSS=!!k(a,"article,aside,figcaption,figure,footer,header,hgroup,nav,section{
display:block}
mark{
background:#FF0;
color:#000}
")),j||p(a,c),a}
var c=a.html5||{
}
,d=/^<|^(?:button|map|select|textarea|object|iframe|option|optgroup)$/i,e=/^(?:a|b|code|div|fieldset|h1|h2|h3|h4|h5|h6|i|label|li|ol|p|q|span|strong|style|table|tbody|td|th|tr|ul)$/i,f,g="_html5shiv",h=0,i={
}
,j;
(function(){
try{
var a=b.createElement("a");
a.innerHTML="<xyz></xyz>",f="hidden"in a,j=a.childNodes.length==1||function(){
b.createElement("a");
var a=b.createDocumentFragment();
return typeof a.cloneNode=="undefined"||typeof a.createDocumentFragment=="undefined"||typeof a.createElement=="undefined"}
()}
catch(c){
f=!0,j=!0}
}
)();
var r={
elements:c.elements||"abbr article aside audio bdi canvas data datalist details figcaption figure footer header hgroup mark meter nav output progress section summary time video",shivCSS:c.shivCSS!==!1,supportsUnknownElements:j,shivMethods:c.shivMethods!==!1,type:"default",shivDocument:q,createElement:n,createDocumentFragment:o}
;
a.html5=r,q(b)}
(this,b),e._version=d,e._domPrefixes=o,e._cssomPrefixes=n,e.testProp=function(a){
return B([a])}
,e.testAllProps=D,e.prefixed=function(a,b,c){
return b?D(a,b,c):D(a,"pfx")}
,g.className=g.className.replace(/(^|\s)no-js(\s|$)/,"$1$2")+(f?" js "+s.join(" "):""),e}
(this,this.document),function(a,b,c){
function d(a){
return"[object Function]"==o.call(a)}
function e(a){
return"string"==typeof a}
function f(){
}
function g(a){
return!a||"loaded"==a||"complete"==a||"uninitialized"==a}
function h(){
var a=p.shift();
q=1,a?a.t?m(function(){
("c"==a.t?B.injectCss:B.injectJs)(a.s,0,a.a,a.x,a.e,1)}
,0):(a(),h()):q=0}
function i(a,c,d,e,f,i,j){
function k(b){
if(!o&&g(l.readyState)&&(u.r=o=1,!q&&h(),l.onload=l.onreadystatechange=null,b)){
"img"!=a&&m(function(){
t.removeChild(l)}
,50);
for(var d in y[c])y[c].hasOwnProperty(d)&&y[c][d].onload()}
}
var j=j||B.errorTimeout,l=b.createElement(a),o=0,r=0,u={
t:d,s:c,e:f,a:i,x:j}
;
1===y[c]&&(r=1,y[c]=[]),"object"==a?l.data=c:(l.src=c,l.type=a),l.width=l.height="0",l.onerror=l.onload=l.onreadystatechange=function(){
k.call(this,r)}
,p.splice(e,0,u),"img"!=a&&(r||2===y[c]?(t.insertBefore(l,s?null:n),m(k,j)):y[c].push(l))}
function j(a,b,c,d,f){
return q=0,b=b||"j",e(a)?i("c"==b?v:u,a,b,this.i++,c,d,f):(p.splice(this.i++,0,a),1==p.length&&h()),this}
function k(){
var a=B;
return a.loader={
load:j,i:0}
,a}
var l=b.documentElement,m=a.setTimeout,n=b.getElementsByTagName("script")[0],o={
}
.toString,p=[],q=0,r="MozAppearance"in l.style,s=r&&!!b.createRange().compareNode,t=s?l:n.parentNode,l=a.opera&&"[object Opera]"==o.call(a.opera),l=!!b.attachEvent&&!l,u=r?"object":l?"script":"img",v=l?"script":u,w=Array.isArray||function(a){
return"[object Array]"==o.call(a)}
,x=[],y={
}
,z={
timeout:function(a,b){
return b.length&&(a.timeout=b[0]),a}
}
,A,B;
B=function(a){
function b(a){
var a=a.split("!"),b=x.length,c=a.pop(),d=a.length,c={
url:c,origUrl:c,prefixes:a}
,e,f,g;
for(f=0;
f<d;
f++)g=a[f].split("="),(e=z[g.shift()])&&(c=e(c,g));
for(f=0;
f<b;
f++)c=x[f](c);
return c}
function g(a,e,f,g,h){
var i=b(a),j=i.autoCallback;
i.url.split(".").pop().split("?").shift(),i.bypass||(e&&(e=d(e)?e:e[a]||e[g]||e[a.split("/").pop().split("?")[0]]),i.instead?i.instead(a,e,f,g,h):(y[i.url]?i.noexec=!0:y[i.url]=1,f.load(i.url,i.forceCSS||!i.forceJS&&"css"==i.url.split(".").pop().split("?").shift()?"c":c,i.noexec,i.attrs,i.timeout),(d(e)||d(j))&&f.load(function(){
k(),e&&e(i.origUrl,h,g),j&&j(i.origUrl,h,g),y[i.url]=2}
)))}
function h(a,b){
function c(a,c){
if(a){
if(e(a))c||(j=function(){
var a=[].slice.call(arguments);
k.apply(this,a),l()}
),g(a,j,b,0,h);
else if(Object(a)===a)for(n in m=function(){
var b=0,c;
for(c in a)a.hasOwnProperty(c)&&b++;
return b}
(),a)a.hasOwnProperty(n)&&(!c&&!--m&&(d(j)?j=function(){
var a=[].slice.call(arguments);
k.apply(this,a),l()}
:j[n]=function(a){
return function(){
var b=[].slice.call(arguments);
a&&a.apply(this,b),l()}
}
(k[n])),g(a[n],j,b,n,h))}
else!c&&l()}
var h=!!a.test,i=a.load||a.both,j=a.callback||f,k=j,l=a.complete||f,m,n;
c(h?a.yep:a.nope,!!i),i&&c(i)}
var i,j,l=this.yepnope.loader;
if(e(a))g(a,0,l,0);
else if(w(a))for(i=0;
i<a.length;
i++)j=a[i],e(j)?g(j,0,l,0):w(j)?B(j):Object(j)===j&&h(j,l);
else Object(a)===a&&h(a,l)}
,B.addPrefix=function(a,b){
z[a]=b}
,B.addFilter=function(a){
x.push(a)}
,B.errorTimeout=1e4,null==b.readyState&&b.addEventListener&&(b.readyState="loading",b.addEventListener("DOMContentLoaded",A=function(){
b.removeEventListener("DOMContentLoaded",A,0),b.readyState="complete"}
,0)),a.yepnope=k(),a.yepnope.executeStack=h,a.yepnope.injectJs=function(a,c,d,e,i,j){
var k=b.createElement("script"),l,o,e=e||B.errorTimeout;
k.src=a;
for(o in d)k.setAttribute(o,d[o]);
c=j?h:c||f,k.onreadystatechange=k.onload=function(){
!l&&g(k.readyState)&&(l=1,c(),k.onload=k.onreadystatechange=null)}
,m(function(){
l||(l=1,c(1))}
,e),i?k.onload():n.parentNode.insertBefore(k,n)}
,a.yepnope.injectCss=function(a,c,d,e,g,i){
var e=b.createElement("link"),j,c=i?h:c||f;
e.href=a,e.rel="stylesheet",e.type="text/css";
for(j in d)e.setAttribute(j,d[j]);
g||(n.parentNode.insertBefore(e,n),m(c,0))}
}
(this,document),Modernizr.load=function(){
yepnope.apply(window,[].slice.call(arguments,0))}
;
CSS代码(component.css):
.og-grid{list-style:none;padding:20px 0;margin:0 auto;text-align:center;width:100%;}
.og-grid li{display:inline-block;margin:10px 5px 0 5px;vertical-align:top;height:250px;}
.og-grid li > a,.og-grid li > a img{border:none;outline:none;display:block;position:relative;}
.og-grid li.og-expanded > a::after{top:auto;border:solid transparent;content:" ";height:0;width:0;position:absolute;pointer-events:none;border-bottom-color:#ddd;border-width:15px;left:50%;margin:-20px 0 0 -15px;}
.og-expander{position:absolute;background:#ddd;top:auto;left:0;width:100%;margin-top:10px;text-align:left;height:0;overflow:hidden;}
.og-expander-inner{padding:50px 30px;height:100%;}
.og-close{position:absolute;width:40px;height:40px;top:20px;right:20px;cursor:pointer;}
.og-close::before,.og-close::after{content:'';position:absolute;width:100%;top:50%;height:1px;background:#888;-webkit-transform:rotate(45deg);-moz-transform:rotate(45deg);transform:rotate(45deg);}
.og-close::after{-webkit-transform:rotate(-45deg);-moz-transform:rotate(-45deg);transform:rotate(-45deg);}
.og-close:hover::before,.og-close:hover::after{background:#333;}
.og-fullimg,.og-details{width:50%;float:left;height:100%;overflow:hidden;position:relative;}
.og-details{padding:0 40px 0 20px;}
.og-fullimg{text-align:center;}
.og-fullimg img{display:inline-block;max-height:100%;max-width:100%;}
.og-details h3{font-weight:300;font-size:52px;padding:40px 0 10px;margin-bottom:10px;}
.og-details p{font-weight:400;font-size:16px;line-height:22px;color:#999;}
.og-details a{font-weight:700;font-size:16px;color:#333;text-transform:uppercase;letter-spacing:2px;padding:10px 20px;border:3px solid #333;display:inline-block;margin:30px 0 0;outline:none;}
.og-details a::before{content:'\2192';display:inline-block;margin-right:10px;}
.og-details a:hover{border-color:#999;color:#999;}
.og-loading{width:20px;height:20px;border-radius:50%;background:#ddd;box-shadow:0 0 1px #ccc,15px 30px 1px #ccc,-15px 30px 1px #ccc;position:absolute;top:50%;left:50%;margin:-25px 0 0 -25px;-webkit-animation:loader 0.5s infinite ease-in-out both;-moz-animation:loader 0.5s infinite ease-in-out both;animation:loader 0.5s infinite ease-in-out both;}
@-webkit-keyframes loader{0%{background:#ddd;}
33%{background:#ccc;box-shadow:0 0 1px #ccc,15px 30px 1px #ccc,-15px 30px 1px #ddd;}
66%{background:#ccc;box-shadow:0 0 1px #ccc,15px 30px 1px #ddd,-15px 30px 1px #ccc;}
}
@-moz-keyframes loader{0%{background:#ddd;}
33%{background:#ccc;box-shadow:0 0 1px #ccc,15px 30px 1px #ccc,-15px 30px 1px #ddd;}
66%{background:#ccc;box-shadow:0 0 1px #ccc,15px 30px 1px #ddd,-15px 30px 1px #ccc;}
}
@keyframes loader{0%{background:#ddd;}
33%{background:#ccc;box-shadow:0 0 1px #ccc,15px 30px 1px #ccc,-15px 30px 1px #ddd;}
66%{background:#ccc;box-shadow:0 0 1px #ccc,15px 30px 1px #ddd,-15px 30px 1px #ccc;}
}
@media screen and (max-width:830px){.og-expander h3{font-size:32px;}
.og-expander p{font-size:13px;}
.og-expander a{font-size:12px;}
}
@media screen and (max-width:650px){.og-fullimg{display:none;}
.og-details{float:none;width:100%;}
}
CSS代码(default.css):
/* General Demo Style */
@import url(http://fonts.googleapis.com/css?family=Lato:300,400,700);html{height:100%;}
*,*:after,*:before{-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;padding:0;margin:0;}
/* Clearfix hack by Nicolas Gallagher:http://nicolasgallagher.com/micro-clearfix-hack/ */
.clearfix:before,.clearfix:after{content:" ";display:table;}
.clearfix:after{clear:both;}
.clearfix{*zoom:1;}
body{font-family:'Lato',Calibri,Arial,sans-serif;background:#f9f9f9;font-weight:300;font-size:15px;color:#333;overflow:scroll;overflow-x:hidden;}
a{color:#555;text-decoration:none;}
.container{width:100%;position:relative;}
.container > header{width:90%;max-width:1240px;margin:0 auto;position:relative;padding:0 30px 50px 30px;}
.container > header{padding:60px 30px 50px;text-align:center;}
.container > header h1{font-size:34px;line-height:38px;margin:0 auto;font-weight:700;color:#333;}
.container > header h1 span{display:block;font-size:20px;font-weight:300;}
.main > p{text-align:center;padding:50px 20px;}
/* Header Style */
.codrops-top{line-height:24px;font-size:11px;background:#fff;background:rgba(255,255,255,0.5);text-transform:uppercase;z-index:9999;position:relative;box-shadow:1px 0px 2px rgba(0,0,0,0.2);}
.codrops-top a{padding:0px 10px;letter-spacing:1px;color:#333;display:inline-block;}
.codrops-top a:hover{background:rgba(255,255,255,0.8);color:#000;}
.codrops-top span.right{float:right;}
.codrops-top span.right a{float:left;display:block;}
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