326 lines
7.9 KiB
JavaScript
Executable File
326 lines
7.9 KiB
JavaScript
Executable File
(function( $, undefined ) {
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/*
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* JMSlideshow object
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*/
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$.JMSlideshow = function( options, element ) {
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// the jms-slideshow
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this.$el = $( element );
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this._init( options );
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};
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$.JMSlideshow.defaults = {
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// options for the jmpress plugin.
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// you can add much more options here. Check http://shama.github.com/jmpress.js/
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jmpressOpts : {
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// set the viewport
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viewPort : {
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height : 400,
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width : 1000,
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maxScale: 1
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},
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fullscreen : false,
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hash : { use : false },
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mouse : { clickSelects : false },
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keyboard : { use : false },
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animation : { transitionDuration : '1s' }
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},
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// for this specific plugin we will have the following options:
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// shows/hides navigation arrows
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arrows : true,
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// shows/hides navigation dots/pages
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dots : true,
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// each step's bgcolor transition speed
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bgColorSpeed: '1s',
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// slideshow on / off
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autoplay : false,
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// time between transitions for the slideshow
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interval : 3500
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};
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$.JMSlideshow.prototype = {
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_init : function( options ) {
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this.options = $.extend( true, {}, $.JMSlideshow.defaults, options );
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// each one of the slides
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this.$slides = $('#jms-slideshow').children('div');
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// total number of slides
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this.slidesCount = this.$slides.length;
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// step's bgcolor
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this.colors = $.map( this.$slides, function( el, i ) { return $( el ).data( 'color' ); } ).join( ' ' );
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// build the necessary structure to run jmpress
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this._layout();
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// initialize the jmpress plugin
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this._initImpress();
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// if support (function implemented in jmpress plugin)
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if( this.support ) {
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// load some events
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this._loadEvents();
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// if autoplay is true start the slideshow
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if( this.options.autoplay ) {
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this._startSlideshow();
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}
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}
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},
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// wraps all the slides in the jms-wrapper div;
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// adds the navigation options ( arrows and dots ) if set to true
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_layout : function() {
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// adds a specific class to each one of the steps
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this.$slides.each( function( i ) {
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$(this).addClass( 'jmstep' + ( i + 1 ) );
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} );
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// wrap the slides. This wrapper will be the element on which we will call the jmpress plugin
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this.$jmsWrapper = this.$slides.wrapAll( '<div class="jms-wrapper"/>' ).parent();
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// transition speed for the wrapper bgcolor
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this.$jmsWrapper.css( {
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'-webkit-transition-duration' : this.options.bgColorSpeed,
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'-moz-transition-duration' : this.options.bgColorSpeed,
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'-ms-transition-duration' : this.options.bgColorSpeed,
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'-o-transition-duration' : this.options.bgColorSpeed,
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'transition-duration' : this.options.bgColorSpeed
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} );
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// add navigation arrows
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if( this.options.arrows ) {
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this.$arrows = $( '<nav class="jms-arrows"></nav>' );
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if( this.slidesCount > 1 ) {
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this.$arrowPrev = $( '<span class="jms-arrows-prev"/>' ).appendTo( this.$arrows );
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this.$arrowNext = $( '<span class="jms-arrows-next"/>' ).appendTo( this.$arrows );
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}
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this.$el.append( this.$arrows )
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}
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// add navigation dots
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if( this.options.dots ) {
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this.$dots = $( '<nav class="jms-dots"></nav>' );
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for( var i = this.slidesCount + 1; --i; ) {
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this.$dots.append( ( i === this.slidesCount ) ? '<span class="jms-dots-current"/>' : '<span/>' );
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}
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if( this.options.jmpressOpts.start ) {
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this.$start = this.$jmsWrapper.find( this.options.jmpressOpts.start ), idxSelected = 0;
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( this.$start.length ) ? idxSelected = this.$start.index() : this.options.jmpressOpts.start = null;
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this.$dots.children().removeClass( 'jms-dots-current' ).eq( idxSelected ).addClass( 'jms-dots-current' );
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}
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this.$el.append( this.$dots )
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}
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},
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// initialize the jmpress plugin
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_initImpress : function() {
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var _self = this;
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this.$jmsWrapper.jmpress( this.options.jmpressOpts );
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// check if supported (function from jmpress.js):
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// it adds the class not-suported to the wrapper
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this.support = !this.$jmsWrapper.hasClass( 'not-supported' );
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// if not supported remove unnecessary elements
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if( !this.support ) {
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if( this.$arrows ) {
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this.$arrows.remove();
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}
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if( this.$dots ) {
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this.$dots.remove();
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}
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return false;
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}
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// redefine the jmpress setActive method
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this.$jmsWrapper.jmpress( 'setActive', function( slide, eventData ) {
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// change the pagination dot active class
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if( _self.options.dots ) {
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// adds the current class to the current dot/page
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_self.$dots
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.children()
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.removeClass( 'jms-dots-current' )
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.eq( slide.index() )
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.addClass( 'jms-dots-current' );
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}
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// delete all current bg colors
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this.removeClass( _self.colors );
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// add bg color class
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this.addClass( slide.data( 'color' ) );
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} );
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// add step's bg color to the wrapper
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this.$jmsWrapper.addClass( this.$jmsWrapper.jmpress('active').data( 'color' ) );
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},
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// start slideshow if autoplay is true
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_startSlideshow : function() {
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var _self = this;
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this.slideshow = setTimeout( function() {
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_self.$jmsWrapper.jmpress( 'next' );
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if( _self.options.autoplay ) {
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_self._startSlideshow();
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}
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}, this.options.interval );
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},
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// stops the slideshow
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_stopSlideshow : function() {
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if( this.options.autoplay ) {
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clearTimeout( this.slideshow );
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this.options.autoplay = false;
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}
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},
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_loadEvents : function() {
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var _self = this;
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// navigation arrows
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if( this.$arrowPrev && this.$arrowNext ) {
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this.$arrowPrev.on( 'click.jmslideshow', function( event ) {
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_self._stopSlideshow();
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_self.$jmsWrapper.jmpress( 'prev' );
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return false;
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} );
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this.$arrowNext.on( 'click.jmslideshow', function( event ) {
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_self._stopSlideshow();
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_self.$jmsWrapper.jmpress( 'next' );
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return false;
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} );
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}
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// navigation dots
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if( this.$dots ) {
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this.$dots.children().on( 'click.jmslideshow', function( event ) {
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_self._stopSlideshow();
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_self.$jmsWrapper.jmpress( 'goTo', '.jmstep' + ( $(this).index() + 1 ) );
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return false;
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} );
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}
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// the touchend event is already defined in the jmpress plugin.
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// we just need to make sure the slideshow stops if the event is triggered
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this.$jmsWrapper.on( 'touchend.jmslideshow', function() {
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_self._stopSlideshow();
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} );
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}
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};
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var logError = function( message ) {
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if ( this.console ) {
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console.error( message );
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}
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};
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$.fn.jmslideshow = function( options ) {
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if ( typeof options === 'string' ) {
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var args = Array.prototype.slice.call( arguments, 1 );
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this.each(function() {
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var instance = $.data( this, 'jmslideshow' );
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if ( !instance ) {
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logError( "cannot call methods on jmslideshow prior to initialization; " +
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"attempted to call method '" + options + "'" );
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return;
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}
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if ( !$.isFunction( instance[options] ) || options.charAt(0) === "_" ) {
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logError( "no such method '" + options + "' for jmslideshow instance" );
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return;
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}
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instance[ options ].apply( instance, args );
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});
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}
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else {
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this.each(function() {
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var instance = $.data( this, 'jmslideshow' );
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if ( !instance ) {
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$.data( this, 'jmslideshow', new $.JMSlideshow( options, this ) );
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}
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});
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}
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return this;
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};
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})( jQuery ); |