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jquery.cycle2.progressive.js
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jquery.cycle2.progressive.js
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/*! progressive loader plugin for Cycle2; version: BETA-20120910 */
(function($) {
"use strict";
$.extend($.fn.cycle.defaults, {
progressive: false
});
$(document).on( 'cycle-pre-initialize', function( e, opts ) {
if ( !opts.progressive )
return;
var API = opts.API;
var nextFn = API.next;
var prevFn = API.prev;
var prepareTxFn = API.prepareTx;
var slides;
var type = $.type( opts.progressive );
if ( type == 'array' ) {
slides = opts.progressive;
}
else if ($.isFunction( opts.progressive ) ) {
slides = opts.progressive( opts );
}
else if ( type == 'string' ) {
slides = $( opts.progressive ).html();
if ( ! $.trim( slides ) )
return;
try {
slides = $.parseJSON( slides );
}
catch(err) {
API.log( 'error parsing progressive slides', err );
return;
}
}
if ( prepareTxFn ) {
API.prepareTx = function( manual, fwd ) {
var index, slide;
if ( manual || slides.length === 0 ) {
prepareTxFn.apply( opts.API, [ manual, fwd ] );
return;
}
if ( fwd && opts.currSlide == ( opts.slideCount-1) ) {
slide = slides[ 0 ];
slides = slides.slice( 1 );
opts.container.one('cycle-slide-added', function(e, opts ) {
opts.API.advanceSlide( 1 );
// opts.container.removeClass('cycle-loading');
});
// opts.container.addClass('cycle-loading');
opts.API.add( slide );
}
else if ( !fwd && opts.currSlide === 0 ) {
index = slides.length-1;
slide = slides[ index ];
slides = slides.slice( 0, index );
opts.container.one('cycle-slide-added', function(e, opts ) {
opts.currSlide = 1;
opts.API.advanceSlide( -1 );
// opts.container.removeClass('cycle-loading');
});
// opts.container.addClass('cycle-loading');
opts.API.add( slide, true );
}
else {
prepareTxFn.apply( opts.API, [ manual, fwd ] );
}
};
}
if ( nextFn ) {
API.next = function() {
var opts = this.opts();
if ( slides.length && opts.currSlide == ( opts.slideCount - 1 ) ) {
var slide = slides[ 0 ];
slides = slides.slice( 1 );
opts.container.one('cycle-slide-added', function(e, opts ) {
nextFn.apply( opts.API );
opts.container.removeClass('cycle-loading');
});
opts.container.addClass('cycle-loading');
opts.API.add( slide );
}
else {
nextFn.apply( opts.API );
}
};
}
if ( prevFn ) {
API.prev = function() {
var opts = this.opts();
if ( slides.length && opts.currSlide === 0 ) {
var index = slides.length-1;
var slide = slides[ index ];
slides = slides.slice( 0, index );
opts.container.one('cycle-slide-added', function(e, opts ) {
opts.currSlide = 1;
opts.API.advanceSlide( -1 );
opts.container.removeClass('cycle-loading');
});
opts.container.addClass('cycle-loading');
opts.API.add( slide, true );
}
else {
prevFn.apply( opts.API );
}
};
}
});
})(jQuery);