358 lines
13 KiB
JavaScript
358 lines
13 KiB
JavaScript
/*
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* Lemmon Slider - jQuery Plugin
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* Simple and lightweight slider/carousel supporting variable elements/images widths.
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*
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* Examples and documentation at: http://jquery.lemmonjuice.com/plugins/slider-variable-widths.php
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*
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* Copyright (c) 2011 Jakub Pelák <jpelak@gmail.com>
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*
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* Version: 0.2 (9/6/2011)
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* Requires: jQuery v1.4+
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*
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* Licensed under the MIT license:
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* http://www.opensource.org/licenses/mit-license.php
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*/
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(function( $ ) {
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var _css = {};
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var methods = {
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//
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// Initialzie plugin
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//
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init: function( options ) {
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options = $.extend( {}, $.fn.lemmonSlider.defaults, options );
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return this.each( function() {
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var $slider = $( this ),
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data = $slider.data( 'slider' );
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if( !data ) {
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var $sliderContainer = $slider.find( options.slider ),
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$sliderControls = $slider.next().filter( '.controls' ),
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$items = $sliderContainer.find( options.items ),
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originalWidth = 1;
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$items.each( function() { originalWidth += $( this ).outerWidth( true ) } );
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$sliderContainer.width( originalWidth );
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// slide to last item
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if( options.slideToLast ) $sliderContainer.css( 'padding-right', $slider.width() );
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// infinite carousel
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if( options.infinite ) {
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$slider.data( 'slider-infinite', true );
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originalWidth = originalWidth * 3;
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$sliderContainer.width( originalWidth );
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$items.clone(true, true).addClass( '-after' ).insertAfter( $items.filter( ':last' ) );
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$items.filter( ':first' ).before( $items.clone(true, true).addClass( '-before' ) );
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$items = $sliderContainer.find( options.items );
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}
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$slider.items = $items;
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$slider.options = options;
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// first item
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//$items.filter( ':first' ).addClass( 'active' );
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slideTo( {}, $slider, 0, 0, 0 );
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// attach events
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$slider.bind( 'nextSlide', function( e, t ) {
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var scroll = $slider.scrollLeft();
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var x = 0;
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var slide = 0;
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$items.each( function( i ) {
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if( x == 0 && $( this ).position().left > options.offset ) {
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x = $( this ).position().left;
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slide = i;
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}
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} );
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if( x > 0 && $sliderContainer.outerWidth() - scroll - $slider.width() - 1 > 0 ) {
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slideTo( e, $slider, scroll + x, slide, 'slow' );
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} else if( options.loop ) {
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// return to first
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slideTo( e, $slider, 0, 0, 'slow' );
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}
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} );
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$slider.bind( 'prevSlide', function( e, t ) {
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var scroll = $slider.scrollLeft();
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var x = 0;
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var slide = 0;
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$items.each( function( i ) {
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if( $( this ).position().left < options.offset ) {
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x = $( this ).position().left;
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slide = i;
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}
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} );
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if( x ) {
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slideTo( e, $slider, scroll + x, slide, 'slow' )
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} else if( options.loop ) {
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// return to last
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var a = $sliderContainer.outerWidth() - $slider.width();
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var b = $items.filter( ':last' ).position().left;
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slide = $items.size() - 1;
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if( a > b ) {
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slideTo( e, $slider, b, slide, 'slow' );
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} else {
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slideTo( e, $slider, a, slide, 'slow' );
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}
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}
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} );
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$slider.bind( 'nextPage', function( e, t ) {
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var scroll = $slider.scrollLeft();
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var w = $slider.width();
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var x = 0;
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var slide = 0;
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$items.each( function( i ) {
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if( $( this ).position().left < w ) {
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x = $( this ).position().left;
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slide = i;
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}
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} );
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if( x > 0 && scroll + w + 1 < originalWidth ) {
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slideTo( e, $slider, scroll + x, slide, 'slow' );
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} else if( options.loop ) {
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// return to first
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slideTo( e, $slider, 0, 0, 'slow' );
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}
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} );
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$slider.bind( 'prevPage', function( e, t ) {
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var scroll = $slider.scrollLeft();
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var w = $slider.width();
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var x = 0;
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$items.each( function( i ) {
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if( $( this ).position().left < 1 - w ) {
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x = $( this ).next().position().left;
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slide = i;
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}
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} );
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if( scroll ) {
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if( x == 0 ) {
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//$slider.animate({ 'scrollLeft' : 0 }, 'slow' );
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slideTo( e, $slider, 0, 0, 'slow' );
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} else {
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//$slider.animate({ 'scrollLeft' : scroll + x }, 'slow' );
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slideTo( e, $slider, scroll + x, slide, 'slow' );
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}
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} else if( options.loop ) {
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// return to last
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var a = $sliderContainer.outerWidth() - $slider.width();
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var b = $items.filter( ':last' ).position().left;
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if( a > b ) {
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$slider.animate( { 'scrollLeft': b }, 'slow' );
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} else {
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$slider.animate( { 'scrollLeft': a }, 'slow' );
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}
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}
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} );
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$slider.bind( 'slideTo', function( e, i, t ) {
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slideTo(
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e, $slider,
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$slider.scrollLeft() + $items.filter( ':eq(' + i + ')' ).position().left,
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i, t );
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} );
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// controls
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$sliderControls.find( '.next-slide' ).on('click', function() {
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$slider.trigger( 'nextSlide' );
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return false;
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} );
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$sliderControls.find( '.prev-slide' ).on('click', function() {
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$slider.trigger( 'prevSlide' );
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return false;
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} );
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$sliderControls.find( '.next-page' ).on('click', function() {
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$slider.trigger( 'nextPage' );
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return false;
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} );
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$sliderControls.find( '.prev-page' ).on('click', function() {
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$slider.trigger( 'prevPage' );
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return false;
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} );
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//if ( typeof $slider.options.create == 'function' ) $slider.options.create();
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$slider.data( 'slider', {
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'target': $slider,
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'options': options
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} )
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}
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} );
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},
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//
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// Add Item
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//
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addItem: function( options ) {
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var options = $.extend( {}, $.fn.lemmonSlider.defaults, options );
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var $slider = $( this ),
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$sliderContainer = $slider.find( options.slider ),
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$sliderControls = $slider.next().filter( '.controls' ),
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$items = $sliderContainer.find( options.items )
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options.infinite = $slider.data( 'slider-infinite' )
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if( !options.item ) {
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return false
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}
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methods.destroy.apply( this );
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if( options.prepend ) {
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$sliderContainer.prepend( options.item );
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} else {
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$sliderContainer.append( options.item );
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}
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methods.init.apply( this, [options] );
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},
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//
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// Destroy plugin
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//
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destroy: function() {
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return this.each( function() {
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var $slider = $( this ),
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$sliderControls = $slider.next().filter( '.controls' ),
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$items = $slider.find( '> *:first > *' ),
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data = $slider.data( 'slider' );
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$slider.unbind( 'nextSlide' );
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$slider.unbind( 'prevSlide' );
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$slider.unbind( 'nextPage' );
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$slider.unbind( 'prevPage' );
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$slider.unbind( 'slideTo' );
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$sliderControls.find( '.next-slide' ).unbind( 'click' );
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$sliderControls.find( '.prev-slide' ).unbind( 'click' );
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$sliderControls.find( '.next-page' ).unbind( 'click' );
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$sliderControls.find( '.next-page' ).unbind( 'click' );
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$slider.removeData( 'slider' );
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if( $slider.data( 'slider-infinite' ) ) {
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$.merge( $items.filter( '.-before' ), $items.filter( '.-after' ) ).each( function( index, item ) {
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$( item ).remove();
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} );
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}
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} );
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}
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//
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//
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//
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}
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//
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// Private functions
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//
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function slideTo( e, $slider, x, i, t ) {
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$slider.items.filter( 'li:eq(' + i + ')' ).addClass( 'active' ).siblings( '.active' ).removeClass( 'active' );
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if( $slider.options.center ) {
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var currentElement = $( $slider.items[ i ] );
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$slider.options.offset = Math.floor( ( $('.qode_image_gallery_holder').width() - currentElement.width() ) / 2 );
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console.log( 'set offset to ', $slider.options.offset );
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}
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if( typeof t == 'undefined' ) {
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t = 'slow';
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}
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if( t ) {
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$slider.animate( { 'scrollLeft': x - $slider.options.offset }, t, function() {
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checkInfinite( $slider );
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} );
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} else {
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var time = 0;
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$slider.scrollLeft( x - $slider.options.offset );
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checkInfinite( $slider );
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}
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//if ( typeof $slider.options.slide == 'function' ) $slider.options.slide( e, i, time );
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}
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function checkInfinite( $slider ) {
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var $active = $slider.items.filter( '.active' );
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if( $active.hasClass( '-before' ) ) {
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var i = $active.prevAll().size();
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$active.removeClass( 'active' );
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$active = $slider.items.filter( ':not(.-before):eq(' + i + ')' ).addClass( 'active' );
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$slider.scrollLeft( $slider.scrollLeft() + $active.position().left - $slider.options.offset );
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} else if( $active.hasClass( '-after' ) ) {
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var i = $active.prevAll( '.-after' ).size();
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$active.removeClass( 'active' );
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$active = $slider.items.filter( ':not(.-before):eq(' + i + ')' ).addClass( 'active' );
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$slider.scrollLeft( $slider.scrollLeft() + $active.position().left - $slider.options.offset );
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}
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}
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//
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// Debug
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//
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function debug( text ) {
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$( '#debug span' ).text( text );
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}
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//
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//
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//
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$.fn.lemmonSlider = function( method, options ) {
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if( methods[method] ) {
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return methods[ method ].apply( this, Array.prototype.slice.call( arguments, 1 ) );
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} else if( typeof method === 'object' || !method ) {
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return methods.init.apply( this, arguments );
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} else {
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$.error( 'Method ' + method + ' does not exist on jQuery.lemmonSlider' );
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}
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};
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//
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//
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//
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$.fn.lemmonSlider.defaults = {
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'items': '> *',
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'loop': true,
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'slideToLast': false,
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'slider': '> *:first',
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// since 0.2
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'infinite': true,
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'center': true,
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'offset': 0
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}
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})( jQuery );
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