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1219 lines
46 KiB
1219 lines
46 KiB
/**
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* BxSlider v4.0 - Fully loaded, responsive content slider
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* http://bxslider.com
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*
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* Copyright 2012, Steven Wanderski - http://stevenwanderski.com - http://bxcreative.com
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* Written while drinking Belgian ales and listening to jazz
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*
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* Released under the WTFPL license - http://sam.zoy.org/wtfpl/
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*/
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;(function($){
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var plugin = {};
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var defaults = {
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// GENERAL
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mode: 'horizontal',
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slideSelector: '',
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infiniteLoop: true,
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hideControlOnEnd: false,
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speed: 1500,
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easing: null,
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slideMargin: 0,
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startSlide: 0,
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randomStart: false,
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captions: false,
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ticker: false,
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tickerHover: false,
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adaptiveHeight: false,
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adaptiveHeightSpeed: 500,
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touchEnabled: true,
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swipeThreshold: 50,
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video: false,
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useCSS: true,
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// PAGER
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pager: true,
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pagerType: 'full',
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pagerShortSeparator: ' / ',
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pagerSelector: null,
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buildPager: null,
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pagerCustom: null,
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// CONTROLS
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controls: true,
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nextText: 'Next',
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prevText: 'Prev',
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nextSelector: null,
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prevSelector: null,
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autoControls: false,
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startText: 'Start',
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stopText: 'Stop',
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autoControlsCombine: false,
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autoControlsSelector: null,
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// AUTO
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auto: false,
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pause: 4000,
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autoStart: true,
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autoDirection: 'next',
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autoHover: false,
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autoDelay: 0,
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// CAROUSEL
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minSlides: 1,
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maxSlides: 1,
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moveSlides: 0,
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slideWidth: 0,
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// CALLBACKS
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onSliderLoad: function() {},
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onSlideBefore: function() {},
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onSlideAfter: function() {},
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onSlideNext: function() {},
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onSlidePrev: function() {}
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}
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$.fn.bxSlider = function(options){
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if(this.length == 0) return;
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// support mutltiple elements
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if(this.length > 1){
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this.each(function(){$(this).bxSlider(options)});
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return this;
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}
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// create a namespace to be used throughout the plugin
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var slider = {};
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// set a reference to our slider element
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var el = this;
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plugin.el = this;
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/**
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* Makes slideshow responsive
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*/
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// first get the original window dimens (thanks alot IE)
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var windowWidth = $(window).width();
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var windowHeight = $(window).height();
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/**
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* ===================================================================================
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* = PRIVATE FUNCTIONS
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* ===================================================================================
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*/
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/**
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* Initializes namespace settings to be used throughout plugin
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*/
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var init = function(){
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// merge user-supplied options with the defaults
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slider.settings = $.extend({}, defaults, options);
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// store the original children
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slider.children = el.children(slider.settings.slideSelector);
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// check if actual number of slides is less than minSlides / maxSlides
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if(slider.children.length < slider.settings.minSlides) slider.settings.minSlides = slider.children.length;
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if(slider.children.length < slider.settings.maxSlides) slider.settings.maxSlides = slider.children.length;
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// if random start, set the startSlide setting to random number
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if(slider.settings.randomStart) slider.settings.startSlide = Math.floor(Math.random() * slider.children.length);
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// store active slide information
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slider.active = { index: slider.settings.startSlide }
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// store if the slider is in carousel mode (displaying / moving multiple slides)
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slider.carousel = slider.settings.minSlides > 1 || slider.settings.maxSlides > 1;
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// calculate the min / max width thresholds based on min / max number of slides
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// used to setup and update carousel slides dimensions
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slider.minThreshold = (slider.settings.minSlides * slider.settings.slideWidth) + ((slider.settings.minSlides - 1) * slider.settings.slideMargin);
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slider.maxThreshold = (slider.settings.maxSlides * slider.settings.slideWidth) + ((slider.settings.maxSlides - 1) * slider.settings.slideMargin);
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// store the current state of the slider (if currently animating, working is true)
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slider.working = false;
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// initialize the controls object
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slider.controls = {};
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// initialize an auto interval
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slider.interval = null;
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// determine which property to use for transitions
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slider.animProp = slider.settings.mode == 'vertical' ? 'top' : 'left';
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// determine if hardware acceleration can be used
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slider.usingCSS = slider.settings.useCSS && slider.settings.mode != 'fade' && (function(){
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// create our test div element
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var div = document.createElement('div');
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// css transition properties
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var props = ['WebkitPerspective', 'MozPerspective', 'OPerspective', 'msPerspective'];
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// test for each property
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for(var i in props){
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if(div.style[props[i]] !== undefined){
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slider.cssPrefix = props[i].replace('Perspective', '').toLowerCase();
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slider.animProp = '-' + slider.cssPrefix + '-transform';
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return true;
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}
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}
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return false;
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}());
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// if vertical mode always make maxSlides and minSlides equal
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if(slider.settings.mode == 'vertical') slider.settings.maxSlides = slider.settings.minSlides;
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// perform all DOM / CSS modifications
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setup();
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}
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/**
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* Performs all DOM and CSS modifications
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*/
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var setup = function(){
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// wrap el in a wrapper
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el.wrap('<div class="bx-wrapper"><div class="bx-viewport"></div></div>');
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// store a namspace reference to .bx-viewport
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slider.viewport = el.parent();
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// add a loading div to display while images are loading
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slider.loader = $('<div class="bx-loading" />');
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slider.viewport.prepend(slider.loader);
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// set el to a massive width, to hold any needed slides
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// also strip any margin and padding from el
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el.css({
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width: slider.settings.mode == 'horizontal' ? slider.children.length * 215 + '%' : 'auto',
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position: 'relative'
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});
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// if using CSS, add the easing property
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if(slider.usingCSS && slider.settings.easing){
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el.css('-' + slider.cssPrefix + '-transition-timing-function', slider.settings.easing);
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// if not using CSS and no easing value was supplied, use the default JS animation easing (swing)
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}else if(!slider.settings.easing){
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slider.settings.easing = 'swing';
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}
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// make modifications to the viewport (.bx-viewport)
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slider.viewport.css({
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width: '100%',
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overflow: 'hidden',
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position: 'relative'
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});
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// apply css to all slider children
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slider.children.css({
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'float': slider.settings.mode == 'horizontal' ? 'left' : 'none',
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listStyle: 'none',
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position: 'relative'
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});
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// apply the calculated width after the float is applied to prevent scrollbar interference
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slider.children.width(getSlideWidth());
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// if slideMargin is supplied, add the css
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if(slider.settings.mode == 'horizontal' && slider.settings.slideMargin > 0) slider.children.css('marginRight', slider.settings.slideMargin);
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if(slider.settings.mode == 'vertical' && slider.settings.slideMargin > 0) slider.children.css('marginBottom', slider.settings.slideMargin);
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// if "fade" mode, add positioning and z-index CSS
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if(slider.settings.mode == 'fade'){
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slider.children.css({
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position: 'absolute',
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zIndex: 0,
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display: 'none'
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});
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// prepare the z-index on the showing element
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slider.children.eq(slider.settings.startSlide).css({zIndex: 50, display: 'block'});
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}
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// create an element to contain all slider controls (pager, start / stop, etc)
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slider.controls.el = $('<div class="bx-controls" />');
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// if captions are requested, add them
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if(slider.settings.captions) appendCaptions();
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// if infinite loop, prepare additional slides
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if(slider.settings.infiniteLoop && slider.settings.mode != 'fade' && !slider.settings.ticker){
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var slice = slider.settings.mode == 'vertical' ? slider.settings.minSlides : slider.settings.maxSlides;
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var sliceAppend = slider.children.slice(0, slice).clone().addClass('bx-clone');
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var slicePrepend = slider.children.slice(-slice).clone().addClass('bx-clone');
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el.append(sliceAppend).prepend(slicePrepend);
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}
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// check if startSlide is last slide
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slider.active.last = slider.settings.startSlide == getPagerQty() - 1;
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// if video is true, set up the fitVids plugin
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if(slider.settings.video) el.fitVids();
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// only check for control addition if not in "ticker" mode
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if(!slider.settings.ticker){
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// if pager is requested, add it
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if(slider.settings.pager) appendPager();
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// if controls are requested, add them
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if(slider.settings.controls) appendControls();
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// if auto is true, and auto controls are requested, add them
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if(slider.settings.auto && slider.settings.autoControls) appendControlsAuto();
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// if any control option is requested, add the controls wrapper
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if(slider.settings.controls || slider.settings.autoControls || slider.settings.pager) slider.viewport.after(slider.controls.el);
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}
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// preload all images, then perform final DOM / CSS modifications that depend on images being loaded
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el.children().imagesLoaded(function(){
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// remove the loading DOM element
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slider.loader.remove();
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// set the left / top position of "el"
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setSlidePosition();
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// if "vertical" mode, always use adaptiveHeight to prevent odd behavior
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if (slider.settings.mode == 'vertical') slider.settings.adaptiveHeight = true;
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// set the viewport height
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slider.viewport.height(getViewportHeight());
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// onSliderLoad callback
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slider.settings.onSliderLoad(slider.active.index);
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// slider has been fully initialized
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slider.initialized = true;
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// bind the resize call to the window
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$(window).bind('resize', resizeWindow);
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// if auto is true, start the show
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if (slider.settings.auto && slider.settings.autoStart) initAuto();
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// if ticker is true, start the ticker
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if (slider.settings.ticker) initTicker();
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// if pager is requested, make the appropriate pager link active
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if (slider.settings.pager) updatePagerActive(slider.settings.startSlide);
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// check for any updates to the controls (like hideControlOnEnd updates)
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if (slider.settings.controls) updateDirectionControls();
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// if touchEnabled is true, setup the touch events
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if (slider.settings.touchEnabled && !slider.settings.ticker) initTouch();
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});
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}
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/**
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* Returns the calculated height of the viewport, used to determine either adaptiveHeight or the maxHeight value
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*/
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var getViewportHeight = function(){
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var height = 0;
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// first determine which children (slides) should be used in our height calculation
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var children = $();
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// if mode is not "vertical", adaptiveHeight is always false, so return all children
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if(slider.settings.mode != 'vertical' && !slider.settings.adaptiveHeight){
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children = slider.children;
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}else{
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// if not carousel, return the single active child
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if(!slider.carousel){
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children = slider.children.eq(slider.active.index);
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// if carousel, return a slice of children
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}else{
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// get the individual slide index
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var currentIndex = slider.settings.moveSlides == 1 ? slider.active.index : slider.active.index * getMoveBy();
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// add the current slide to the children
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children = slider.children.eq(currentIndex);
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// cycle through the remaining "showing" slides
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for (i = 1; i <= slider.settings.maxSlides - 1; i++){
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// if looped back to the start
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if(currentIndex + i >= slider.children.length){
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children = children.add(slider.children.eq(i - 1));
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}else{
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children = children.add(slider.children.eq(currentIndex + i));
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}
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}
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}
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}
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// if "vertical" mode, calculate the sum of the heights of the children
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if(slider.settings.mode == 'vertical'){
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children.each(function(index) {
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height += $(this).outerHeight();
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});
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// add user-supplied margins
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if(slider.settings.slideMargin > 0){
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height += slider.settings.slideMargin * (slider.settings.minSlides - 1);
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}
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// if not "vertical" mode, calculate the max height of the children
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}else{
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height = Math.max.apply(Math, children.map(function(){
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return $(this).outerHeight(false);
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}).get());
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}
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return height;
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}
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/**
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* Returns the calculated width to be applied to each slide
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*/
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var getSlideWidth = function(){
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// start with any user-supplied slide width
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var newElWidth = slider.settings.slideWidth;
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// get the current viewport width
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var wrapWidth = slider.viewport.width();
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// if slide width was not supplied, use the viewport width (means not carousel)
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if(slider.settings.slideWidth == 0){
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newElWidth = wrapWidth;
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// if carousel, use the thresholds to determine the width
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}else{
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if(wrapWidth > slider.maxThreshold){
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newElWidth = (wrapWidth - (slider.settings.slideMargin * (slider.settings.maxSlides - 1))) / slider.settings.maxSlides;
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}else if(wrapWidth < slider.minThreshold){
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newElWidth = (wrapWidth - (slider.settings.slideMargin * (slider.settings.minSlides - 1))) / slider.settings.minSlides;
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}
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}
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return newElWidth;
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}
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/**
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* Returns the number of slides currently visible in the viewport (includes partially visible slides)
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*/
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var getNumberSlidesShowing = function(){
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var slidesShowing = 1;
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if(slider.settings.mode == 'horizontal'){
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// if viewport is smaller than minThreshold, return minSlides
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if(slider.viewport.width() < slider.minThreshold){
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slidesShowing = slider.settings.minSlides;
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// if viewport is larger than minThreshold, return maxSlides
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}else if(slider.viewport.width() > slider.maxThreshold){
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slidesShowing = slider.settings.maxSlides;
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// if viewport is between min / max thresholds, divide viewport width by first child width
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}else{
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var childWidth = slider.children.first().width();
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slidesShowing = Math.floor(slider.viewport.width() / childWidth);
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}
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// if "vertical" mode, slides showing will always be minSlides
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}else if(slider.settings.mode == 'vertical'){
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slidesShowing = slider.settings.minSlides;
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}
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return slidesShowing;
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}
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/**
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* Returns the number of pages (one full viewport of slides is one "page")
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*/
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var getPagerQty = function(){
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var pagerQty = 0;
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// if moveSlides is specified by the user
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if(slider.settings.moveSlides > 0){
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if(slider.settings.infiniteLoop){
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pagerQty = slider.children.length / getMoveBy();
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}else{
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// use a while loop to determine pages
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var breakPoint = 0;
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var counter = 0
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// when breakpoint goes above children length, counter is the number of pages
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while (breakPoint < slider.children.length){
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++pagerQty;
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breakPoint = counter + getNumberSlidesShowing();
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counter += slider.settings.moveSlides <= getNumberSlidesShowing() ? slider.settings.moveSlides : getNumberSlidesShowing();
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}
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}
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// if moveSlides is 0 (auto) divide children length by sides showing, then round up
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}else{
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pagerQty = Math.ceil(slider.children.length / getNumberSlidesShowing());
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}
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return pagerQty;
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}
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/**
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* Returns the number of indivual slides by which to shift the slider
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*/
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var getMoveBy = function(){
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// if moveSlides was set by the user and moveSlides is less than number of slides showing
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if(slider.settings.moveSlides > 0 && slider.settings.moveSlides <= getNumberSlidesShowing()){
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return slider.settings.moveSlides;
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}
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// if moveSlides is 0 (auto)
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return getNumberSlidesShowing();
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}
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/**
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* Sets the slider's (el) left or top position
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*/
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var setSlidePosition = function(){
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// if last slide
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if(slider.active.last && !slider.settings.infiniteLoop){
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if (slider.settings.mode == 'horizontal'){
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// get the last child's position
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var lastChild = slider.children.last();
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var position = lastChild.position();
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// set the left position
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setPositionProperty(-(position.left - (slider.viewport.width() - lastChild.width())), 'reset', 0);
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}else if(slider.settings.mode == 'vertical'){
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// get the last showing index's position
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var lastShowingIndex = slider.children.length - slider.settings.minSlides;
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var position = slider.children.eq(lastShowingIndex).position();
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// set the top position
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setPositionProperty(-position.top, 'reset', 0);
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}
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// if not last slide
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}else{
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// get the position of the first showing slide
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var position = slider.children.eq(slider.active.index * getMoveBy()).position();
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// check for last slide
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if (slider.active.index == getPagerQty() - 1) slider.active.last = true;
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// set the repective position
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if (position != undefined){
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if (slider.settings.mode == 'horizontal') setPositionProperty(-position.left, 'reset', 0);
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else if (slider.settings.mode == 'vertical') setPositionProperty(-position.top, 'reset', 0);
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}
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}
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}
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/**
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* Sets the el's animating property position (which in turn will sometimes animate el).
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* If using CSS, sets the transform property. If not using CSS, sets the top / left property.
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*
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* @param value (int)
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* - the animating property's value
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*
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* @param type (string) 'slider', 'reset', 'ticker'
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* - the type of instance for which the function is being
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*
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* @param duration (int)
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* - the amount of time (in ms) the transition should occupy
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*
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* @param params (array) optional
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* - an optional parameter containing any variables that need to be passed in
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*/
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var setPositionProperty = function(value, type, duration, params){
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// use CSS transform
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if(slider.usingCSS){
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// determine the translate3d value
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var propValue = slider.settings.mode == 'vertical' ? 'translate3d(0, ' + value + 'px, 0)' : 'translate3d(' + value + 'px, 0, 0)';
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// add the CSS transition-duration
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el.css('-' + slider.cssPrefix + '-transition-duration', duration / 1000 + 's');
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if(type == 'slide'){
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// set the property value
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el.css(slider.animProp, propValue);
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// bind a callback method - executes when CSS transition completes
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el.bind('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd', function(){
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// unbind the callback
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el.unbind('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd');
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updateAfterSlideTransition();
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});
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}else if(type == 'reset'){
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el.css(slider.animProp, propValue);
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}else if(type == 'ticker'){
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// make the transition use 'linear'
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el.css('-' + slider.cssPrefix + '-transition-timing-function', 'linear');
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el.css(slider.animProp, propValue);
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// bind a callback method - executes when CSS transition completes
|
|
el.bind('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd', function(){
|
|
// unbind the callback
|
|
el.unbind('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd');
|
|
// reset the position
|
|
setPositionProperty(params['resetValue'], 'reset', 0);
|
|
// start the loop again
|
|
tickerLoop();
|
|
});
|
|
}
|
|
// use JS animate
|
|
}else{
|
|
var animateObj = {};
|
|
animateObj[slider.animProp] = value;
|
|
if(type == 'slide'){
|
|
el.animate(animateObj, duration, slider.settings.easing, function(){
|
|
updateAfterSlideTransition();
|
|
});
|
|
}else if(type == 'reset'){
|
|
el.css(slider.animProp, value)
|
|
}else if(type == 'ticker'){
|
|
el.animate(animateObj, speed, 'linear', function(){
|
|
setPositionProperty(params['resetValue'], 'reset', 0);
|
|
// run the recursive loop after animation
|
|
tickerLoop();
|
|
});
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Populates the pager with proper amount of pages
|
|
*/
|
|
var populatePager = function(){
|
|
var pagerHtml = '';
|
|
pagerQty = getPagerQty();
|
|
// loop through each pager item
|
|
for(var i=0; i < pagerQty; i++){
|
|
var linkContent = '';
|
|
// if a buildPager function is supplied, use it to get pager link value, else use index + 1
|
|
if(slider.settings.buildPager && $.isFunction(slider.settings.buildPager)){
|
|
linkContent = slider.settings.buildPager(i);
|
|
slider.pagerEl.addClass('bx-custom-pager');
|
|
}else{
|
|
linkContent = i + 1;
|
|
slider.pagerEl.addClass('bx-default-pager');
|
|
}
|
|
// var linkContent = slider.settings.buildPager && $.isFunction(slider.settings.buildPager) ? slider.settings.buildPager(i) : i + 1;
|
|
// add the markup to the string
|
|
pagerHtml += '<div class="bx-pager-item"><a href="" data-slide-index="' + i + '" class="bx-pager-link">' + linkContent + '</a></div>';
|
|
};
|
|
// populate the pager element with pager links
|
|
slider.pagerEl.html(pagerHtml);
|
|
}
|
|
|
|
/**
|
|
* Appends the pager to the controls element
|
|
*/
|
|
var appendPager = function(){
|
|
if(!slider.settings.pagerCustom){
|
|
// create the pager DOM element
|
|
slider.pagerEl = $('<div class="bx-pager" />');
|
|
// if a pager selector was supplied, populate it with the pager
|
|
if(slider.settings.pagerSelector){
|
|
$(slider.settings.pagerSelector).html(slider.pagerEl);
|
|
// if no pager selector was supplied, add it after the wrapper
|
|
}else{
|
|
slider.controls.el.addClass('bx-has-pager').append(slider.pagerEl);
|
|
}
|
|
// populate the pager
|
|
populatePager();
|
|
}else{
|
|
slider.pagerEl = $(slider.settings.pagerCustom);
|
|
}
|
|
// assign the pager click binding
|
|
slider.pagerEl.delegate('a', 'click', clickPagerBind);
|
|
}
|
|
|
|
/**
|
|
* Appends prev / next controls to the controls element
|
|
*/
|
|
var appendControls = function(){
|
|
slider.controls.next = $('<a class="bx-next" href="">' + slider.settings.nextText + '</a>');
|
|
slider.controls.prev = $('<a class="bx-prev" href="">' + slider.settings.prevText + '</a>');
|
|
// bind click actions to the controls
|
|
slider.controls.next.bind('click', clickNextBind);
|
|
slider.controls.prev.bind('click', clickPrevBind);
|
|
// if nextSlector was supplied, populate it
|
|
if(slider.settings.nextSelector){
|
|
$(slider.settings.nextSelector).append(slider.controls.next);
|
|
}
|
|
// if prevSlector was supplied, populate it
|
|
if(slider.settings.prevSelector){
|
|
$(slider.settings.prevSelector).append(slider.controls.prev);
|
|
}
|
|
// if no custom selectors were supplied
|
|
if(!slider.settings.nextSelector && !slider.settings.prevSelector){
|
|
// add the controls to the DOM
|
|
slider.controls.directionEl = $('<div class="bx-controls-direction" />');
|
|
// add the control elements to the directionEl
|
|
slider.controls.directionEl.append(slider.controls.prev).append(slider.controls.next);
|
|
// slider.viewport.append(slider.controls.directionEl);
|
|
slider.controls.el.addClass('bx-has-controls-direction').append(slider.controls.directionEl);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Appends start / stop auto controls to the controls element
|
|
*/
|
|
var appendControlsAuto = function(){
|
|
slider.controls.start = $('<div class="bx-controls-auto-item"><a class="bx-start" href="">' + slider.settings.startText + '</a></div>');
|
|
slider.controls.stop = $('<div class="bx-controls-auto-item"><a class="bx-stop" href="">' + slider.settings.stopText + '</a></div>');
|
|
// add the controls to the DOM
|
|
slider.controls.autoEl = $('<div class="bx-controls-auto" />');
|
|
// bind click actions to the controls
|
|
slider.controls.autoEl.delegate('.bx-start', 'click', clickStartBind);
|
|
slider.controls.autoEl.delegate('.bx-stop', 'click', clickStopBind);
|
|
// if autoControlsCombine, insert only the "start" control
|
|
if(slider.settings.autoControlsCombine){
|
|
slider.controls.autoEl.append(slider.controls.start);
|
|
// if autoControlsCombine is false, insert both controls
|
|
}else{
|
|
slider.controls.autoEl.append(slider.controls.start).append(slider.controls.stop);
|
|
}
|
|
// if auto controls selector was supplied, populate it with the controls
|
|
if(slider.settings.autoControlsSelector){
|
|
$(slider.settings.autoControlsSelector).html(slider.controls.autoEl);
|
|
// if auto controls selector was not supplied, add it after the wrapper
|
|
}else{
|
|
slider.controls.el.addClass('bx-has-controls-auto').append(slider.controls.autoEl);
|
|
}
|
|
// update the auto controls
|
|
updateAutoControls(slider.settings.autoStart ? 'stop' : 'start');
|
|
}
|
|
|
|
/**
|
|
* Appends image captions to the DOM
|
|
*/
|
|
var appendCaptions = function(){
|
|
// cycle through each child
|
|
slider.children.each(function(index){
|
|
// get the image title attribute
|
|
var title = $(this).find('img:first').attr('title');
|
|
// append the caption
|
|
if (title != undefined) $(this).append('<div class="bx-caption"><span>' + title + '</span></div>');
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Click next binding
|
|
*
|
|
* @param e (event)
|
|
* - DOM event object
|
|
*/
|
|
var clickNextBind = function(e){
|
|
// if auto show is running, stop it
|
|
if (slider.settings.auto) el.stopAuto();
|
|
el.goToNextSlide();
|
|
e.preventDefault();
|
|
}
|
|
|
|
/**
|
|
* Click prev binding
|
|
*
|
|
* @param e (event)
|
|
* - DOM event object
|
|
*/
|
|
var clickPrevBind = function(e){
|
|
// if auto show is running, stop it
|
|
if (slider.settings.auto) el.stopAuto();
|
|
el.goToPrevSlide();
|
|
e.preventDefault();
|
|
}
|
|
|
|
/**
|
|
* Click start binding
|
|
*
|
|
* @param e (event)
|
|
* - DOM event object
|
|
*/
|
|
var clickStartBind = function(e){
|
|
el.startAuto();
|
|
e.preventDefault();
|
|
}
|
|
|
|
/**
|
|
* Click stop binding
|
|
*
|
|
* @param e (event)
|
|
* - DOM event object
|
|
*/
|
|
var clickStopBind = function(e){
|
|
el.stopAuto();
|
|
e.preventDefault();
|
|
}
|
|
|
|
/**
|
|
* Click pager binding
|
|
*
|
|
* @param e (event)
|
|
* - DOM event object
|
|
*/
|
|
var clickPagerBind = function(e){
|
|
// if auto show is running, stop it
|
|
if (slider.settings.auto) el.stopAuto();
|
|
var pagerLink = $(e.currentTarget);
|
|
var pagerIndex = parseInt(pagerLink.attr('data-slide-index'));
|
|
// if clicked pager link is not active, continue with the goToSlide call
|
|
if(pagerIndex != slider.active.index) el.goToSlide(pagerIndex);
|
|
e.preventDefault();
|
|
}
|
|
|
|
/**
|
|
* Updates the pager links with an active class
|
|
*
|
|
* @param slideIndex (int)
|
|
* - index of slide to make active
|
|
*/
|
|
var updatePagerActive = function(slideIndex){
|
|
// if "short" pager type
|
|
if(slider.settings.pagerType == 'short'){
|
|
slider.pagerEl.html((slideIndex + 1) + slider.settings.pagerShortSeparator + slider.children.length);
|
|
return;
|
|
}
|
|
// remove all pager active classes
|
|
slider.pagerEl.find('a').removeClass('active');
|
|
// apply the active class for all pagers
|
|
slider.pagerEl.each(function(i, el) { $(el).find('a').eq(slideIndex).addClass('active'); });
|
|
}
|
|
|
|
/**
|
|
* Performs needed actions after a slide transition
|
|
*/
|
|
var updateAfterSlideTransition = function(){
|
|
// if infinte loop is true
|
|
if(slider.settings.infiniteLoop){
|
|
var position = '';
|
|
// first slide
|
|
if(slider.active.index == 0){
|
|
// set the new position
|
|
position = slider.children.eq(0).position();
|
|
// carousel, last slide
|
|
}else if(slider.active.index == getPagerQty() - 1 && slider.carousel){
|
|
position = slider.children.eq((getPagerQty() - 1) * getMoveBy()).position();
|
|
// last slide
|
|
}else if(slider.active.index == slider.children.length - 1){
|
|
position = slider.children.eq(slider.children.length - 1).position();
|
|
}
|
|
if (slider.settings.mode == 'horizontal') { setPositionProperty(-position.left, 'reset', 0);; }
|
|
else if (slider.settings.mode == 'vertical') { setPositionProperty(-position.top, 'reset', 0);; }
|
|
}
|
|
// declare that the transition is complete
|
|
slider.working = false;
|
|
// onSlideAfter callback
|
|
slider.settings.onSlideAfter(slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index);
|
|
}
|
|
|
|
/**
|
|
* Updates the auto controls state (either active, or combined switch)
|
|
*
|
|
* @param state (string) "start", "stop"
|
|
* - the new state of the auto show
|
|
*/
|
|
var updateAutoControls = function(state){
|
|
// if autoControlsCombine is true, replace the current control with the new state
|
|
if(slider.settings.autoControlsCombine){
|
|
slider.controls.autoEl.html(slider.controls[state]);
|
|
// if autoControlsCombine is false, apply the "active" class to the appropriate control
|
|
}else{
|
|
slider.controls.autoEl.find('a').removeClass('active');
|
|
slider.controls.autoEl.find('a:not(.bx-' + state + ')').addClass('active');
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Updates the direction controls (checks if either should be hidden)
|
|
*/
|
|
var updateDirectionControls = function(){
|
|
// if infiniteLoop is false and hideControlOnEnd is true
|
|
if(!slider.settings.infiniteLoop && slider.settings.hideControlOnEnd){
|
|
// if first slide
|
|
if (slider.active.index == 0){
|
|
slider.controls.prev.addClass('disabled');
|
|
slider.controls.next.removeClass('disabled');
|
|
// if last slide
|
|
}else if(slider.active.index == getPagerQty() - 1){
|
|
slider.controls.next.addClass('disabled');
|
|
slider.controls.prev.removeClass('disabled');
|
|
// if any slide in the middle
|
|
}else{
|
|
slider.controls.prev.removeClass('disabled');
|
|
slider.controls.next.removeClass('disabled');
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Initialzes the auto process
|
|
*/
|
|
var initAuto = function(){
|
|
// if autoDelay was supplied, launch the auto show using a setTimeout() call
|
|
if(slider.settings.autoDelay > 0){
|
|
var timeout = setTimeout(el.startAuto, slider.settings.autoDelay);
|
|
// if autoDelay was not supplied, start the auto show normally
|
|
}else{
|
|
el.startAuto();
|
|
}
|
|
// if autoHover is requested
|
|
if(slider.settings.autoHover){
|
|
// on el hover
|
|
el.hover(function(){
|
|
// if the auto show is currently playing (has an active interval)
|
|
if(slider.interval){
|
|
// stop the auto show and pass true agument which will prevent control update
|
|
el.stopAuto(true);
|
|
// create a new autoPaused value which will be used by the relative "mouseout" event
|
|
slider.autoPaused = true;
|
|
}
|
|
}, function(){
|
|
// if the autoPaused value was created be the prior "mouseover" event
|
|
if(slider.autoPaused){
|
|
// start the auto show and pass true agument which will prevent control update
|
|
el.startAuto(true);
|
|
// reset the autoPaused value
|
|
slider.autoPaused = null;
|
|
}
|
|
});
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Initialzes the ticker process
|
|
*/
|
|
var initTicker = function(){
|
|
var startPosition = 0;
|
|
// if autoDirection is "next", append a clone of the entire slider
|
|
if(slider.settings.autoDirection == 'next'){
|
|
el.append(slider.children.clone().addClass('bx-clone'));
|
|
// if autoDirection is "prev", prepend a clone of the entire slider, and set the left position
|
|
}else{
|
|
el.prepend(slider.children.clone().addClass('bx-clone'));
|
|
var position = slider.children.first().position();
|
|
startPosition = slider.settings.mode == 'horizontal' ? -position.left : -position.top;
|
|
}
|
|
setPositionProperty(startPosition, 'reset', 0);
|
|
// do not allow controls in ticker mode
|
|
slider.settings.pager = false;
|
|
slider.settings.controls = false;
|
|
slider.settings.autoControls = false;
|
|
// if autoHover is requested
|
|
if(slider.settings.tickerHover && !slider.usingCSS){
|
|
// on el hover
|
|
slider.viewport.hover(function(){
|
|
el.stop();
|
|
}, function(){
|
|
// calculate the total width of children (used to calculate the speed ratio)
|
|
var totalDimens = 0;
|
|
slider.children.each(function(index){
|
|
totalDimens += slider.settings.mode == 'horizontal' ? $(this).outerWidth(true) : $(this).outerHeight(true);
|
|
});
|
|
// calculate the speed ratio (used to determine the new speed to finish the paused animation)
|
|
var ratio = slider.settings.speed / totalDimens;
|
|
// determine which property to use
|
|
var property = slider.settings.mode == 'horizontal' ? 'left' : 'top';
|
|
// calculate the new speed
|
|
var newSpeed = ratio * (totalDimens - (Math.abs(parseInt(el.css(property)))));
|
|
tickerLoop(newSpeed);
|
|
});
|
|
}
|
|
// start the ticker loop
|
|
tickerLoop();
|
|
}
|
|
|
|
/**
|
|
* Runs a continuous loop, news ticker-style
|
|
*/
|
|
var tickerLoop = function(resumeSpeed){
|
|
speed = resumeSpeed ? resumeSpeed : slider.settings.speed;
|
|
var position = {left: 0, top: 0};
|
|
var reset = {left: 0, top: 0};
|
|
// if "next" animate left position to last child, then reset left to 0
|
|
if(slider.settings.autoDirection == 'next'){
|
|
position = el.find('.bx-clone').first().position();
|
|
// if "prev" animate left position to 0, then reset left to first non-clone child
|
|
}else{
|
|
reset = slider.children.first().position();
|
|
}
|
|
var animateProperty = slider.settings.mode == 'horizontal' ? -position.left : -position.top;
|
|
var resetValue = slider.settings.mode == 'horizontal' ? -reset.left : -reset.top;
|
|
var params = {resetValue: resetValue};
|
|
setPositionProperty(animateProperty, 'ticker', speed, params);
|
|
}
|
|
|
|
/**
|
|
* Initializes touch events
|
|
*/
|
|
var initTouch = function(){
|
|
// initialize object to contain all touch values
|
|
slider.touch = {
|
|
start: {x: 0, y: 0},
|
|
end: {x: 0, y: 0}
|
|
}
|
|
slider.viewport.bind('touchstart', onTouchStart);
|
|
}
|
|
|
|
/**
|
|
* Event handler for "touchstart"
|
|
*
|
|
* @param e (event)
|
|
* - DOM event object
|
|
*/
|
|
var onTouchStart = function(e){
|
|
if(slider.working){
|
|
e.preventDefault();
|
|
}else{
|
|
// record the original position when touch starts
|
|
slider.touch.originalPos = el.position();
|
|
var orig = e.originalEvent;
|
|
// record the starting touch x, y coordinates
|
|
slider.touch.start.x = orig.changedTouches[0].pageX;
|
|
slider.touch.start.y = orig.changedTouches[0].pageY;
|
|
// bind a "touchmove" event to the viewport
|
|
slider.viewport.bind('touchmove', onTouchMove);
|
|
// bind a "touchend" event to the viewport
|
|
slider.viewport.bind('touchend', onTouchEnd);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Event handler for "touchmove"
|
|
*
|
|
* @param e (event)
|
|
* - DOM event object
|
|
*/
|
|
var onTouchMove = function(e){
|
|
e.preventDefault();
|
|
if(slider.settings.mode != 'fade'){
|
|
var orig = e.originalEvent;
|
|
var value = 0;
|
|
// if horizontal, drag along x axis
|
|
if(slider.settings.mode == 'horizontal'){
|
|
var change = orig.changedTouches[0].pageX - slider.touch.start.x;
|
|
value = slider.touch.originalPos.left + change;
|
|
// if vertical, drag along y axis
|
|
}else{
|
|
var change = orig.changedTouches[0].pageY - slider.touch.start.y;
|
|
value = slider.touch.originalPos.top + change;
|
|
}
|
|
setPositionProperty(value, 'reset', 0);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Event handler for "touchend"
|
|
*
|
|
* @param e (event)
|
|
* - DOM event object
|
|
*/
|
|
var onTouchEnd = function(e){
|
|
slider.viewport.unbind('touchmove', onTouchMove);
|
|
var orig = e.originalEvent;
|
|
var value = 0;
|
|
// record end x, y positions
|
|
slider.touch.end.x = orig.changedTouches[0].pageX;
|
|
slider.touch.end.y = orig.changedTouches[0].pageY;
|
|
// if fade mode, check if absolute x distance clears the threshold
|
|
if(slider.settings.mode == 'fade'){
|
|
var distance = Math.abs(slider.touch.start.x - slider.touch.end.x);
|
|
if(distance >= slider.settings.swipeThreshold){
|
|
slider.touch.start.x > slider.touch.end.x ? el.goToNextSlide() : el.goToPrevSlide();
|
|
el.stopAuto();
|
|
}
|
|
// not fade mode
|
|
}else{
|
|
var distance = 0;
|
|
// calculate distance and el's animate property
|
|
if(slider.settings.mode == 'horizontal'){
|
|
distance = slider.touch.end.x - slider.touch.start.x;
|
|
value = slider.touch.originalPos.left;
|
|
}else{
|
|
distance = slider.touch.end.y - slider.touch.start.y;
|
|
value = slider.touch.originalPos.top;
|
|
}
|
|
// if not infinite loop and first / last slide, do not attempt a slide transition
|
|
if(!slider.settings.infiniteLoop && ((slider.active.index == 0 && distance > 0) || (slider.active.last && distance < 0))){
|
|
setPositionProperty(value, 'reset', 200);
|
|
}else{
|
|
// check if distance clears threshold
|
|
if(Math.abs(distance) >= slider.settings.swipeThreshold){
|
|
distance < 0 ? el.goToNextSlide() : el.goToPrevSlide();
|
|
el.stopAuto();
|
|
}else{
|
|
// el.animate(property, 200);
|
|
setPositionProperty(value, 'reset', 200);
|
|
}
|
|
}
|
|
}
|
|
slider.viewport.unbind('touchend', onTouchEnd);
|
|
}
|
|
|
|
var resizeWindow = function(e){
|
|
// get the new window dimens (again, thank you IE)
|
|
var windowWidthNew = $(window).width();
|
|
var windowHeightNew = $(window).height();
|
|
// make sure that it is a true window resize
|
|
// *we must check this because our dinosaur friend IE fires a window resize event when certain DOM elements
|
|
// are resized. Can you just die already?*
|
|
if(windowWidth != windowWidthNew || windowHeight != windowHeightNew){
|
|
// set the new window dimens
|
|
windowWidth = windowWidthNew;
|
|
windowHeight = windowHeightNew;
|
|
// resize all children in ratio to new screen size
|
|
slider.children.add(el.find('.bx-clone')).width(getSlideWidth());
|
|
// adjust the height
|
|
slider.viewport.css('height', getViewportHeight());
|
|
// if active.last was true before the screen resize, we want
|
|
// to keep it last no matter what screen size we end on
|
|
if (slider.active.last) slider.active.index = getPagerQty() - 1;
|
|
// if the active index (page) no longer exists due to the resize, simply set the index as last
|
|
if (slider.active.index >= getPagerQty()) slider.active.last = true;
|
|
// if a pager is being displayed and a custom pager is not being used, update it
|
|
if(slider.settings.pager && !slider.settings.pagerCustom){
|
|
populatePager();
|
|
updatePagerActive(slider.active.index);
|
|
}
|
|
// update the slide position
|
|
if(!slider.settings.ticker) setSlidePosition();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* ===================================================================================
|
|
* = PUBLIC FUNCTIONS
|
|
* ===================================================================================
|
|
*/
|
|
|
|
/**
|
|
* Performs slide transition to the specified slide
|
|
*
|
|
* @param slideIndex (int)
|
|
* - the destination slide's index (zero-based)
|
|
*
|
|
* @param direction (string)
|
|
* - INTERNAL USE ONLY - the direction of travel ("prev" / "next")
|
|
*/
|
|
el.goToSlide = function(slideIndex, direction){
|
|
// if plugin is currently in motion, ignore request
|
|
if(slider.working || slider.active.index == slideIndex) return;
|
|
// declare that plugin is in motion
|
|
slider.working = true;
|
|
// store the old index
|
|
slider.oldIndex = slider.active.index;
|
|
// if slideIndex is less than zero, set active index to last child (this happens during infinite loop)
|
|
if(slideIndex < 0){
|
|
slider.active.index = getPagerQty() - 1;
|
|
// if slideIndex is greater than children length, set active index to 0 (this happens during infinite loop)
|
|
}else if(slideIndex >= getPagerQty()){
|
|
slider.active.index = 0;
|
|
// set active index to requested slide
|
|
}else{
|
|
slider.active.index = slideIndex;
|
|
}
|
|
// onSlideBefore, onSlideNext, onSlidePrev callbacks
|
|
slider.settings.onSlideBefore(slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index);
|
|
if(direction == 'next'){
|
|
slider.settings.onSlideNext(slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index);
|
|
}else if(direction == 'prev'){
|
|
slider.settings.onSlidePrev(slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index);
|
|
}
|
|
// check if last slide
|
|
slider.active.last = slider.active.index >= getPagerQty() - 1;
|
|
// update the pager with active class
|
|
if(slider.settings.pager) updatePagerActive(slider.active.index);
|
|
// // check for direction control update
|
|
if(slider.settings.controls) updateDirectionControls();
|
|
// if slider is set to mode: "fade"
|
|
if(slider.settings.mode == 'fade'){
|
|
// if adaptiveHeight is true and next height is different from current height, animate to the new height
|
|
if(slider.settings.adaptiveHeight && slider.viewport.height() != getViewportHeight()){
|
|
slider.viewport.animate({height: getViewportHeight()}, slider.settings.adaptiveHeightSpeed);
|
|
}
|
|
// fade out the visible child and reset its z-index value
|
|
slider.children.filter(':visible').fadeOut(slider.settings.speed).css({zIndex: 0});
|
|
// fade in the newly requested slide
|
|
slider.children.eq(slider.active.index).css('zIndex', 51).fadeIn(slider.settings.speed, function(){
|
|
$(this).css('zIndex', 50);
|
|
updateAfterSlideTransition();
|
|
});
|
|
// slider mode is not "fade"
|
|
}else{
|
|
// if adaptiveHeight is true and next height is different from current height, animate to the new height
|
|
if(slider.settings.adaptiveHeight && slider.viewport.height() != getViewportHeight()){
|
|
slider.viewport.animate({height: getViewportHeight()}, slider.settings.adaptiveHeightSpeed);
|
|
}
|
|
var moveBy = 0;
|
|
var position = {left: 0, top: 0};
|
|
// if carousel and not infinite loop
|
|
if(!slider.settings.infiniteLoop && slider.carousel && slider.active.last){
|
|
if(slider.settings.mode == 'horizontal'){
|
|
// get the last child position
|
|
var lastChild = slider.children.eq(slider.children.length - 1);
|
|
position = lastChild.position();
|
|
// calculate the position of the last slide
|
|
moveBy = slider.viewport.width() - lastChild.width();
|
|
}else{
|
|
// get last showing index position
|
|
var lastShowingIndex = slider.children.length - slider.settings.minSlides;
|
|
position = slider.children.eq(lastShowingIndex).position();
|
|
}
|
|
// horizontal carousel, going previous while on first slide (infiniteLoop mode)
|
|
}else if(slider.carousel && slider.active.last && direction == 'prev'){
|
|
// get the last child position
|
|
var eq = slider.settings.moveSlides == 1 ? slider.settings.maxSlides - getMoveBy() : ((getPagerQty() - 1) * getMoveBy()) - (slider.children.length - slider.settings.maxSlides);
|
|
var lastChild = el.children('.bx-clone').eq(eq);
|
|
position = lastChild.position();
|
|
// if infinite loop and "Next" is clicked on the last slide
|
|
}else if(direction == 'next' && slider.active.index == 0){
|
|
// get the last clone position
|
|
position = el.find('.bx-clone').eq(slider.settings.maxSlides).position();
|
|
slider.active.last = false;
|
|
// normal non-zero requests
|
|
}else if(slideIndex >= 0){
|
|
var requestEl = slideIndex * getMoveBy();
|
|
position = slider.children.eq(requestEl).position();
|
|
}
|
|
// plugin values to be animated
|
|
var value = slider.settings.mode == 'horizontal' ? -(position.left - moveBy) : -position.top;
|
|
setPositionProperty(value, 'slide', slider.settings.speed);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Transitions to the next slide in the show
|
|
*/
|
|
el.goToNextSlide = function(){
|
|
// if infiniteLoop is false and last page is showing, disregard call
|
|
if (!slider.settings.infiniteLoop && slider.active.last) return;
|
|
var pagerIndex = slider.active.index + 1;
|
|
el.goToSlide(pagerIndex, 'next');
|
|
}
|
|
|
|
/**
|
|
* Transitions to the prev slide in the show
|
|
*/
|
|
el.goToPrevSlide = function(){
|
|
// if infiniteLoop is false and last page is showing, disregard call
|
|
if (!slider.settings.infiniteLoop && slider.active.index == 0) return;
|
|
var pagerIndex = slider.active.index - 1;
|
|
el.goToSlide(pagerIndex, 'prev');
|
|
}
|
|
|
|
/**
|
|
* Starts the auto show
|
|
*
|
|
* @param preventControlUpdate (boolean)
|
|
* - if true, auto controls state will not be updated
|
|
*/
|
|
el.startAuto = function(preventControlUpdate){
|
|
// if an interval already exists, disregard call
|
|
if(slider.interval) return;
|
|
// create an interval
|
|
slider.interval = setInterval(function(){
|
|
slider.settings.autoDirection == 'next' ? el.goToNextSlide() : el.goToPrevSlide();
|
|
}, slider.settings.pause);
|
|
// if auto controls are displayed and preventControlUpdate is not true
|
|
if (slider.settings.autoControls && preventControlUpdate != true) updateAutoControls('stop');
|
|
}
|
|
|
|
/**
|
|
* Stops the auto show
|
|
*
|
|
* @param preventControlUpdate (boolean)
|
|
* - if true, auto controls state will not be updated
|
|
*/
|
|
el.stopAuto = function(preventControlUpdate){
|
|
// if no interval exists, disregard call
|
|
if(!slider.interval) return;
|
|
// clear the interval
|
|
clearInterval(slider.interval);
|
|
slider.interval = null;
|
|
// if auto controls are displayed and preventControlUpdate is not true
|
|
if (slider.settings.autoControls && preventControlUpdate != true) updateAutoControls('start');
|
|
}
|
|
|
|
/**
|
|
* Returns current slide index (zero-based)
|
|
*/
|
|
el.getCurrentSlide = function(){
|
|
return slider.active.index;
|
|
}
|
|
|
|
/**
|
|
* Returns number of slides in show
|
|
*/
|
|
el.getSlideCount = function(){
|
|
return slider.children.length;
|
|
}
|
|
|
|
/**
|
|
* Destroy the current instance of the slider (revert everything back to original state)
|
|
*/
|
|
el.destroySlider = function(){
|
|
// don't do anything if slider has already been destroyed
|
|
if(!slider.initialized) return;
|
|
slider.initialized = false;
|
|
$('.bx-clone', this).remove();
|
|
slider.children.removeAttr('style');
|
|
this.removeAttr('style').unwrap().unwrap();
|
|
if(slider.controls.el) slider.controls.el.remove();
|
|
if(slider.controls.next) slider.controls.next.remove();
|
|
if(slider.controls.prev) slider.controls.prev.remove();
|
|
if(slider.pagerEl) slider.pagerEl.remove();
|
|
$('.bx-caption', this).remove();
|
|
if(slider.controls.autoEl) slider.controls.autoEl.remove();
|
|
clearInterval(slider.interval);
|
|
$(window).unbind('resize', resizeWindow);
|
|
}
|
|
|
|
/**
|
|
* Reload the slider (revert all DOM changes, and re-initialize)
|
|
*/
|
|
el.reloadSlider = function(settings){
|
|
if (settings != undefined) options = settings;
|
|
el.destroySlider();
|
|
init();
|
|
}
|
|
|
|
init();
|
|
|
|
// returns the current jQuery object
|
|
return this;
|
|
}
|
|
|
|
})(jQuery);
|
|
|
|
/*!
|
|
* jQuery imagesLoaded plugin v2.1.0
|
|
* http://github.com/desandro/imagesloaded
|
|
*
|
|
* MIT License. by Paul Irish et al.
|
|
*/
|
|
|
|
/*jshint curly: true, eqeqeq: true, noempty: true, strict: true, undef: true, browser: true */
|
|
/*global jQuery: false */
|
|
|
|
(function(c,n){var l="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==";c.fn.imagesLoaded=function(f){function m(){var b=c(i),a=c(h);d&&(h.length?d.reject(e,b,a):d.resolve(e));c.isFunction(f)&&f.call(g,e,b,a)}function j(b,a){b.src===l||-1!==c.inArray(b,k)||(k.push(b),a?h.push(b):i.push(b),c.data(b,"imagesLoaded",{isBroken:a,src:b.src}),o&&d.notifyWith(c(b),[a,e,c(i),c(h)]),e.length===k.length&&(setTimeout(m),e.unbind(".imagesLoaded")))}var g=this,d=c.isFunction(c.Deferred)?c.Deferred():
|
|
0,o=c.isFunction(d.notify),e=g.find("img").add(g.filter("img")),k=[],i=[],h=[];c.isPlainObject(f)&&c.each(f,function(b,a){if("callback"===b)f=a;else if(d)d[b](a)});e.length?e.bind("load.imagesLoaded error.imagesLoaded",function(b){j(b.target,"error"===b.type)}).each(function(b,a){var d=a.src,e=c.data(a,"imagesLoaded");if(e&&e.src===d)j(a,e.isBroken);else if(a.complete&&a.naturalWidth!==n)j(a,0===a.naturalWidth||0===a.naturalHeight);else if(a.readyState||a.complete)a.src=l,a.src=d}):m();return d?d.promise(g):
|
|
g}})(jQuery); |