Kod:
$(function() {
$.fn.imagesLoaded = function( callback ) {
var $images = this.find('img'),
len = $images.length,
_this = this,
blank = 'data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==';
function triggerCallback() {
callback.call( _this, $images );
}
function imgLoaded() {
if ( --len <= 0 && this.src !== blank ){
setTimeout( triggerCallback );
$images.off( 'load error', imgLoaded );
}
}
if ( !len ) {
triggerCallback();
}
$images.on( 'load error', imgLoaded ).each( function() {
// cached images don't fire load sometimes, so we reset src.
if (this.complete || this.complete === undefined){
var src = this.src;
// webkit hack from http://groups.google.com/group/jquery-dev/browse_thread/thread/eee6ab7b2da50e1f
// data uri bypasses webkit log warning (thx doug jones)
this.src = blank;
this.src = src;
}
});
return this;
};
// gallery container
var $rgGallery = $('#rg-gallery'),
// carousel container
$esCarousel = $rgGallery.find('div.es-carousel-wrapper'),
// the carousel items
$items = $esCarousel.find('ul > li'),
// total number of items
itemsCount = $items.length;
Gallery = (function() {
// index of the current item
var current = 0,
// mode : carousel || fullview
mode = 'carousel',
// control if one image is being loaded
anim = false,
init = function() {
// (not necessary) preloading the images here...
$items.add('<img src="includes/images/ajax-loader.gif"/><img src="includes/images/black.png"/>').imagesLoaded( function() {
// add options
_addViewModes();
// add large image wrapper
_addImageWrapper();
// show first image
_showImage( $items.eq( current ) );
});
// initialize the carousel
if( mode === 'carousel' )
_initCarousel();
},
_initCarousel = function() {
// we are using the elastislide plugin:
// http://tympanus.net/codrops/2011/09/12/elastislide-responsive-carousel/
$esCarousel.show().elastislide({
imageW : 80,
onClick : function( $item ) {
if( anim ) return false;
anim = true;
// on click show image
_showImage($item);
// change current
current = $item.index();
}
});
// set elastislide's current to current
$esCarousel.elastislide( 'setCurrent', current );
},
_addViewModes = function() {
// top right buttons: hide / show carousel
var $viewfull = $('<a href="#" class="rg-view-full"></a>'),
$viewthumbs = $('<a href="#" class="rg-view-thumbs rg-view-selected"></a>');
$rgGallery.prepend( $('<div class="rg-view"/>').append( $viewfull ).append( $viewthumbs ) );
$viewfull.on('click.rgGallery', function( event ) {
if( mode === 'carousel' )
$esCarousel.elastislide( 'destroy' );
$esCarousel.hide();
$viewfull.addClass('rg-view-selected');
$viewthumbs.removeClass('rg-view-selected');
mode = 'fullview';
return false;
});
$viewthumbs.on('click.rgGallery', function( event ) {
_initCarousel();
$viewthumbs.addClass('rg-view-selected');
$viewfull.removeClass('rg-view-selected');
mode = 'carousel';
return false;
});
if( mode === 'fullview' )
$viewfull.trigger('click');
},
_addImageWrapper= function() {
// adds the structure for the large image and the navigation buttons (if total items > 1)
// also initializes the navigation events
$('#img-wrapper-tmpl').tmpl( {itemsCount : itemsCount} ).appendTo( $rgGallery );
if( itemsCount > 1 ) {
// addNavigation
var $navPrev = $rgGallery.find('a.rg-image-nav-prev'),
$navNext = $rgGallery.find('a.rg-image-nav-next'),
$imgWrapper = $rgGallery.find('div.rg-image');
$navPrev.on('click.rgGallery', function( event ) {
_navigate( 'left' );
return false;
});
$navNext.on('click.rgGallery', function( event ) {
_navigate( 'right' );
return false;
});
// add touchwipe events on the large image wrapper
$imgWrapper.touchwipe({
wipeLeft : function() {
_navigate( 'right' );
},
wipeRight : function() {
_navigate( 'left' );
},
preventDefaultEvents: false
});
$(document).on('keyup.rgGallery', function( event ) {
if (event.keyCode == 39)
_navigate( 'right' );
else if (event.keyCode == 37)
_navigate( 'left' );
});
}
},
_navigate = function( dir ) {
// navigate through the large images
if( anim ) return false;
anim = true;
if( dir === 'right' ) {
if( current + 1 >= itemsCount )
current = 0;
else
++current;
}
else if( dir === 'left' ) {
if( current - 1 < 0 )
current = itemsCount - 1;
else
--current;
}
_showImage( $items.eq( current ) );
},
_showImage = function( $item ) {
// shows the large image that is associated to the $item
var $loader = $rgGallery.find('div.rg-loading').show();
$items.removeClass('selected');
$item.addClass('selected');
var $thumb = $item.find('img'),
largesrc = $thumb.data('large'),
title = $thumb.data('description');
$('<img/>').load( function() {
$rgGallery.find('div.rg-image').empty().append('<img src="' + largesrc + '"/>');
if( title )
$rgGallery.find('div.rg-caption').show().children('p').empty().text( title );
$loader.hide();
if( mode === 'carousel' ) {
$esCarousel.elastislide( 'reload' );
$esCarousel.elastislide( 'setCurrent', current );
}
anim = false;
}).attr( 'src', largesrc );
},
addItems = function( $new ) {
$esCarousel.find('ul').append($new);
$items = $items.add( $($new) );
itemsCount = $items.length;
$esCarousel.elastislide( 'add', $new );
};
return {
init : init,
addItems : addItems
};
})();
Gallery.init();
});