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- /**
- * BxSlider v4.1.1 - Fully loaded, responsive content slider
- * http://bxslider.com
- *
- * Copyright 2013, Steven Wanderski - http://stevenwanderski.com - http://bxcreative.com
- * Written while drinking Belgian ales and listening to jazz
- *
- * Released under the MIT license - http://opensource.org/licenses/MIT
- */
- ;(function($){
- var plugin = {};
- var defaults = {
- // GENERAL
- mode: 'horizontal',
- slideSelector: '',
- infiniteLoop: true,
- hideControlOnEnd: false,
- speed: 500,
- easing: null,
- slideMargin: 0,
- startSlide: 0,
- randomStart: false,
- captions: false,
- ticker: false,
- tickerHover: false,
- adaptiveHeight: false,
- adaptiveHeightSpeed: 500,
- video: false,
- useCSS: true,
- preloadImages: 'visible',
- responsive: true,
- // TOUCH
- touchEnabled: true,
- swipeThreshold: 50,
- oneToOneTouch: true,
- preventDefaultSwipeX: true,
- preventDefaultSwipeY: false,
- // PAGER
- pager: true,
- pagerType: 'full',
- pagerShortSeparator: ' / ',
- pagerSelector: null,
- buildPager: null,
- pagerCustom: null,
- // CONTROLS
- controls: true,
- nextText: 'Next',
- prevText: 'Prev',
- nextSelector: null,
- prevSelector: null,
- autoControls: false,
- startText: 'Start',
- stopText: 'Stop',
- autoControlsCombine: false,
- autoControlsSelector: null,
- // AUTO
- auto: false,
- pause: 4000,
- autoStart: true,
- autoDirection: 'next',
- autoHover: false,
- autoDelay: 0,
- // CAROUSEL
- minSlides: 1,
- maxSlides: 1,
- moveSlides: 0,
- slideWidth: 0,
- // CALLBACKS
- onSliderLoad: function() {},
- onSlideBefore: function() {},
- onSlideAfter: function() {},
- onSlideNext: function() {},
- onSlidePrev: function() {}
- }
- $.fn.bxSlider = function(options){
- if(this.length == 0) return this;
- // support mutltiple elements
- if(this.length > 1){
- this.each(function(){$(this).bxSlider(options)});
- return this;
- }
- // create a namespace to be used throughout the plugin
- var slider = {};
- // set a reference to our slider element
- var el = this;
- plugin.el = this;
- /**
- * Makes slideshow responsive
- */
- // first get the original window dimens (thanks alot IE)
- var windowWidth = $(window).width();
- var windowHeight = $(window).height();
- /**
- * ===================================================================================
- * = PRIVATE FUNCTIONS
- * ===================================================================================
- */
- /**
- * Initializes namespace settings to be used throughout plugin
- */
- var init = function(){
- // merge user-supplied options with the defaults
- slider.settings = $.extend({}, defaults, options);
- // parse slideWidth setting
- slider.settings.slideWidth = parseInt(slider.settings.slideWidth);
- // store the original children
- slider.children = el.children(slider.settings.slideSelector);
- // check if actual number of slides is less than minSlides / maxSlides
- if(slider.children.length < slider.settings.minSlides) slider.settings.minSlides = slider.children.length;
- if(slider.children.length < slider.settings.maxSlides) slider.settings.maxSlides = slider.children.length;
- // if random start, set the startSlide setting to random number
- if(slider.settings.randomStart) slider.settings.startSlide = Math.floor(Math.random() * slider.children.length);
- // store active slide information
- slider.active = { index: slider.settings.startSlide }
- // store if the slider is in carousel mode (displaying / moving multiple slides)
- slider.carousel = slider.settings.minSlides > 1 || slider.settings.maxSlides > 1;
- // if carousel, force preloadImages = 'all'
- if(slider.carousel) slider.settings.preloadImages = 'all';
- // calculate the min / max width thresholds based on min / max number of slides
- // used to setup and update carousel slides dimensions
- slider.minThreshold = (slider.settings.minSlides * slider.settings.slideWidth) + ((slider.settings.minSlides - 1) * slider.settings.slideMargin);
- slider.maxThreshold = (slider.settings.maxSlides * slider.settings.slideWidth) + ((slider.settings.maxSlides - 1) * slider.settings.slideMargin);
- // store the current state of the slider (if currently animating, working is true)
- slider.working = false;
- // initialize the controls object
- slider.controls = {};
- // initialize an auto interval
- slider.interval = null;
- // determine which property to use for transitions
- slider.animProp = slider.settings.mode == 'vertical' ? 'top' : 'left';
- // determine if hardware acceleration can be used
- slider.usingCSS = slider.settings.useCSS && slider.settings.mode != 'fade' && (function(){
- // create our test div element
- var div = document.createElement('div');
- // css transition properties
- var props = ['WebkitPerspective', 'MozPerspective', 'OPerspective', 'msPerspective'];
- // test for each property
- for(var i in props){
- if(div.style[props[i]] !== undefined){
- slider.cssPrefix = props[i].replace('Perspective', '').toLowerCase();
- slider.animProp = '-' + slider.cssPrefix + '-transform';
- return true;
- }
- }
- return false;
- }());
- // if vertical mode always make maxSlides and minSlides equal
- if(slider.settings.mode == 'vertical') slider.settings.maxSlides = slider.settings.minSlides;
- // save original style data
- el.data("origStyle", el.attr("style"));
- el.children(slider.settings.slideSelector).each(function() {
- $(this).data("origStyle", $(this).attr("style"));
- });
- // perform all DOM / CSS modifications
- setup();
- }
- /**
- * Performs all DOM and CSS modifications
- */
- var setup = function(){
- // wrap el in a wrapper
- el.wrap('<div class="bx-wrapper"><div class="bx-viewport"></div></div>');
- // store a namspace reference to .bx-viewport
- slider.viewport = el.parent();
- // add a loading div to display while images are loading
- slider.loader = $('<div class="bx-loading" />');
- slider.viewport.prepend(slider.loader);
- // set el to a massive width, to hold any needed slides
- // also strip any margin and padding from el
- el.css({
- width: slider.settings.mode == 'horizontal' ? (slider.children.length * 100 + 215) + '%' : 'auto',
- position: 'relative'
- });
- // if using CSS, add the easing property
- if(slider.usingCSS && slider.settings.easing){
- el.css('-' + slider.cssPrefix + '-transition-timing-function', slider.settings.easing);
- // if not using CSS and no easing value was supplied, use the default JS animation easing (swing)
- }else if(!slider.settings.easing){
- slider.settings.easing = 'swing';
- }
- var slidesShowing = getNumberSlidesShowing();
- // make modifications to the viewport (.bx-viewport)
- slider.viewport.css({
- width: '100%',
- overflow: 'hidden',
- position: 'relative'
- });
- slider.viewport.parent().css({
- maxWidth: getViewportMaxWidth()
- });
- // make modification to the wrapper (.bx-wrapper)
- if(!slider.settings.pager) {
- slider.viewport.parent().css({
- margin: '0 auto 0px'
- });
- }
- // apply css to all slider children
- slider.children.css({
- 'float': slider.settings.mode == 'horizontal' ? 'left' : 'none',
- listStyle: 'none',
- position: 'relative'
- });
- // apply the calculated width after the float is applied to prevent scrollbar interference
- slider.children.css('width', getSlideWidth());
- // if slideMargin is supplied, add the css
- if(slider.settings.mode == 'horizontal' && slider.settings.slideMargin > 0) slider.children.css('marginRight', slider.settings.slideMargin);
- if(slider.settings.mode == 'vertical' && slider.settings.slideMargin > 0) slider.children.css('marginBottom', slider.settings.slideMargin);
- // if "fade" mode, add positioning and z-index CSS
- if(slider.settings.mode == 'fade'){
- slider.children.css({
- position: 'absolute',
- zIndex: 0,
- display: 'none'
- });
- // prepare the z-index on the showing element
- slider.children.eq(slider.settings.startSlide).css({zIndex: 50, display: 'block'});
- }
- // create an element to contain all slider controls (pager, start / stop, etc)
- slider.controls.el = $('<div class="bx-controls" />');
- // if captions are requested, add them
- if(slider.settings.captions) appendCaptions();
- // check if startSlide is last slide
- slider.active.last = slider.settings.startSlide == getPagerQty() - 1;
- // if video is true, set up the fitVids plugin
- if(slider.settings.video) el.fitVids();
- // set the default preload selector (visible)
- var preloadSelector = slider.children.eq(slider.settings.startSlide);
- if (slider.settings.preloadImages == "all") preloadSelector = slider.children;
- // only check for control addition if not in "ticker" mode
- if(!slider.settings.ticker){
- // if pager is requested, add it
- if(slider.settings.pager) appendPager();
- // if controls are requested, add them
- if(slider.settings.controls) appendControls();
- // if auto is true, and auto controls are requested, add them
- if(slider.settings.auto && slider.settings.autoControls) appendControlsAuto();
- // if any control option is requested, add the controls wrapper
- if(slider.settings.controls || slider.settings.autoControls || slider.settings.pager) slider.viewport.after(slider.controls.el);
- // if ticker mode, do not allow a pager
- }else{
- slider.settings.pager = false;
- }
- // preload all images, then perform final DOM / CSS modifications that depend on images being loaded
- loadElements(preloadSelector, start);
- }
- var loadElements = function(selector, callback){
- var total = selector.find('img, iframe').length;
- if (total == 0){
- callback();
- return;
- }
- var count = 0;
- selector.find('img, iframe').each(function(){
- $(this).one('load', function() {
- if(++count == total) callback();
- }).each(function() {
- if(this.complete) $(this).load();
- });
- });
- }
- /**
- * Start the slider
- */
- var start = function(){
- // if infinite loop, prepare additional slides
- if(slider.settings.infiniteLoop && slider.settings.mode != 'fade' && !slider.settings.ticker){
- var slice = slider.settings.mode == 'vertical' ? slider.settings.minSlides : slider.settings.maxSlides;
- var sliceAppend = slider.children.slice(0, slice).clone().addClass('bx-clone');
- var slicePrepend = slider.children.slice(-slice).clone().addClass('bx-clone');
- el.append(sliceAppend).prepend(slicePrepend);
- }
- // remove the loading DOM element
- slider.loader.remove();
- // set the left / top position of "el"
- setSlidePosition();
- // if "vertical" mode, always use adaptiveHeight to prevent odd behavior
- if (slider.settings.mode == 'vertical') slider.settings.adaptiveHeight = true;
- // set the viewport height
- slider.viewport.height(getViewportHeight());
- // make sure everything is positioned just right (same as a window resize)
- el.redrawSlider();
- // onSliderLoad callback
- slider.settings.onSliderLoad(slider.active.index);
- // slider has been fully initialized
- slider.initialized = true;
- // bind the resize call to the window
- if (slider.settings.responsive) $(window).bind('resize', resizeWindow);
- // if auto is true, start the show
- if (slider.settings.auto && slider.settings.autoStart) initAuto();
- // if ticker is true, start the ticker
- if (slider.settings.ticker) initTicker();
- // if pager is requested, make the appropriate pager link active
- if (slider.settings.pager) updatePagerActive(slider.settings.startSlide);
- // check for any updates to the controls (like hideControlOnEnd updates)
- if (slider.settings.controls) updateDirectionControls();
- // if touchEnabled is true, setup the touch events
- if (slider.settings.touchEnabled && !slider.settings.ticker) initTouch();
- }
- /**
- * Returns the calculated height of the viewport, used to determine either adaptiveHeight or the maxHeight value
- */
- var getViewportHeight = function(){
- var height = 0;
- // first determine which children (slides) should be used in our height calculation
- var children = $();
- // if mode is not "vertical" and adaptiveHeight is false, include all children
- if(slider.settings.mode != 'vertical' && !slider.settings.adaptiveHeight){
- children = slider.children;
- }else{
- // if not carousel, return the single active child
- if(!slider.carousel){
- children = slider.children.eq(slider.active.index);
- // if carousel, return a slice of children
- }else{
- // get the individual slide index
- var currentIndex = slider.settings.moveSlides == 1 ? slider.active.index : slider.active.index * getMoveBy();
- // add the current slide to the children
- children = slider.children.eq(currentIndex);
- // cycle through the remaining "showing" slides
- for (i = 1; i <= slider.settings.maxSlides - 1; i++){
- // if looped back to the start
- if(currentIndex + i >= slider.children.length){
- children = children.add(slider.children.eq(i - 1));
- }else{
- children = children.add(slider.children.eq(currentIndex + i));
- }
- }
- }
- }
- // if "vertical" mode, calculate the sum of the heights of the children
- if(slider.settings.mode == 'vertical'){
- children.each(function(index) {
- height += $(this).outerHeight();
- });
- // add user-supplied margins
- if(slider.settings.slideMargin > 0){
- height += slider.settings.slideMargin * (slider.settings.minSlides - 1);
- }
- // if not "vertical" mode, calculate the max height of the children
- }else{
- height = Math.max.apply(Math, children.map(function(){
- return $(this).outerHeight(false);
- }).get());
- }
- return height;
- }
- /**
- * Returns the calculated width to be used for the outer wrapper / viewport
- */
- var getViewportMaxWidth = function(){
- var width = '100%';
- if(slider.settings.slideWidth > 0){
- if(slider.settings.mode == 'horizontal'){
- width = (slider.settings.maxSlides * slider.settings.slideWidth) + ((slider.settings.maxSlides - 1) * slider.settings.slideMargin);
- }else{
- width = slider.settings.slideWidth;
- }
- }
- return width;
- }
- /**
- * Returns the calculated width to be applied to each slide
- */
- var getSlideWidth = function(){
- // start with any user-supplied slide width
- var newElWidth = slider.settings.slideWidth;
- // get the current viewport width
- var wrapWidth = slider.viewport.width();
- // if slide width was not supplied, or is larger than the viewport use the viewport width
- if(slider.settings.slideWidth == 0 ||
- (slider.settings.slideWidth > wrapWidth && !slider.carousel) ||
- slider.settings.mode == 'vertical'){
- newElWidth = wrapWidth;
- // if carousel, use the thresholds to determine the width
- }else if(slider.settings.maxSlides > 1 && slider.settings.mode == 'horizontal'){
- if(wrapWidth > slider.maxThreshold){
- // newElWidth = (wrapWidth - (slider.settings.slideMargin * (slider.settings.maxSlides - 1))) / slider.settings.maxSlides;
- }else if(wrapWidth < slider.minThreshold){
- newElWidth = (wrapWidth - (slider.settings.slideMargin * (slider.settings.minSlides - 1))) / slider.settings.minSlides;
- }
- }
- return newElWidth;
- }
- /**
- * Returns the number of slides currently visible in the viewport (includes partially visible slides)
- */
- var getNumberSlidesShowing = function(){
- var slidesShowing = 1;
- if(slider.settings.mode == 'horizontal' && slider.settings.slideWidth > 0){
- // if viewport is smaller than minThreshold, return minSlides
- if(slider.viewport.width() < slider.minThreshold){
- slidesShowing = slider.settings.minSlides;
- // if viewport is larger than minThreshold, return maxSlides
- }else if(slider.viewport.width() > slider.maxThreshold){
- slidesShowing = slider.settings.maxSlides;
- // if viewport is between min / max thresholds, divide viewport width by first child width
- }else{
- var childWidth = slider.children.first().width();
- slidesShowing = Math.floor(slider.viewport.width() / childWidth);
- }
- // if "vertical" mode, slides showing will always be minSlides
- }else if(slider.settings.mode == 'vertical'){
- slidesShowing = slider.settings.minSlides;
- }
- return slidesShowing;
- }
- /**
- * Returns the number of pages (one full viewport of slides is one "page")
- */
- var getPagerQty = function(){
- var pagerQty = 0;
- // if moveSlides is specified by the user
- if(slider.settings.moveSlides > 0){
- if(slider.settings.infiniteLoop){
- pagerQty = slider.children.length / getMoveBy();
- }else{
- // use a while loop to determine pages
- var breakPoint = 0;
- var counter = 0
- // when breakpoint goes above children length, counter is the number of pages
- while (breakPoint < slider.children.length){
- ++pagerQty;
- breakPoint = counter + getNumberSlidesShowing();
- counter += slider.settings.moveSlides <= getNumberSlidesShowing() ? slider.settings.moveSlides : getNumberSlidesShowing();
- }
- }
- // if moveSlides is 0 (auto) divide children length by sides showing, then round up
- }else{
- pagerQty = Math.ceil(slider.children.length / getNumberSlidesShowing());
- }
- return pagerQty;
- }
- /**
- * Returns the number of indivual slides by which to shift the slider
- */
- var getMoveBy = function(){
- // if moveSlides was set by the user and moveSlides is less than number of slides showing
- if(slider.settings.moveSlides > 0 && slider.settings.moveSlides <= getNumberSlidesShowing()){
- return slider.settings.moveSlides;
- }
- // if moveSlides is 0 (auto)
- return getNumberSlidesShowing();
- }
- /**
- * Sets the slider's (el) left or top position
- */
- var setSlidePosition = function(){
- // if last slide, not infinite loop, and number of children is larger than specified maxSlides
- if(slider.children.length > slider.settings.maxSlides && slider.active.last && !slider.settings.infiniteLoop){
- if (slider.settings.mode == 'horizontal'){
- // get the last child's position
- var lastChild = slider.children.last();
- var position = lastChild.position();
- // set the left position
- setPositionProperty(-(position.left - (slider.viewport.width() - lastChild.width())), 'reset', 0);
- }else if(slider.settings.mode == 'vertical'){
- // get the last showing index's position
- var lastShowingIndex = slider.children.length - slider.settings.minSlides;
- var position = slider.children.eq(lastShowingIndex).position();
- // set the top position
- setPositionProperty(-position.top, 'reset', 0);
- }
- // if not last slide
- }else{
- // get the position of the first showing slide
- var position = slider.children.eq(slider.active.index * getMoveBy()).position();
- // check for last slide
- if (slider.active.index == getPagerQty() - 1) slider.active.last = true;
- // set the repective position
- if (position != undefined){
- if (slider.settings.mode == 'horizontal') setPositionProperty(-position.left, 'reset', 0);
- else if (slider.settings.mode == 'vertical') setPositionProperty(-position.top, 'reset', 0);
- }
- }
- }
- /**
- * Sets the el's animating property position (which in turn will sometimes animate el).
- * If using CSS, sets the transform property. If not using CSS, sets the top / left property.
- *
- * @param value (int)
- * - the animating property's value
- *
- * @param type (string) 'slider', 'reset', 'ticker'
- * - the type of instance for which the function is being
- *
- * @param duration (int)
- * - the amount of time (in ms) the transition should occupy
- *
- * @param params (array) optional
- * - an optional parameter containing any variables that need to be passed in
- */
- var setPositionProperty = function(value, type, duration, params){
- // use CSS transform
- if(slider.usingCSS){
- // determine the translate3d value
- var propValue = slider.settings.mode == 'vertical' ? 'translate3d(0, ' + value + 'px, 0)' : 'translate3d(' + value + 'px, 0, 0)';
- // add the CSS transition-duration
- el.css('-' + slider.cssPrefix + '-transition-duration', duration / 1000 + 's');
- if(type == 'slide'){
- // set the property value
- el.css(slider.animProp, propValue);
- // 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');
- updateAfterSlideTransition();
- });
- }else if(type == 'reset'){
- el.css(slider.animProp, propValue);
- }else if(type == 'ticker'){
- // make the transition use 'linear'
- el.css('-' + slider.cssPrefix + '-transition-timing-function', 'linear');
- el.css(slider.animProp, propValue);
- // 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 = '';
- var 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 && ('' + title).length) {
- $(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
- var len = slider.children.length; // nb of children
- if(slider.settings.pagerType == 'short'){
- if(slider.settings.maxSlides > 1) {
- len = Math.ceil(slider.children.length/slider.settings.maxSlides);
- }
- slider.pagerEl.html( (slideIndex + 1) + slider.settings.pagerShortSeparator + len);
- 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(getPagerQty() == 1){
- slider.controls.prev.addClass('disabled');
- slider.controls.next.addClass('disabled');
- }else 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){
- var orig = e.originalEvent;
- // if scrolling on y axis, do not prevent default
- var xMovement = Math.abs(orig.changedTouches[0].pageX - slider.touch.start.x);
- var yMovement = Math.abs(orig.changedTouches[0].pageY - slider.touch.start.y);
- // x axis swipe
- if((xMovement * 3) > yMovement && slider.settings.preventDefaultSwipeX){
- e.preventDefault();
- // y axis swipe
- }else if((yMovement * 3) > xMovement && slider.settings.preventDefaultSwipeY){
- e.preventDefault();
- }
- if(slider.settings.mode != 'fade' && slider.settings.oneToOneTouch){
- 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);
- }
- /**
- * Window resize event callback
- */
- 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;
- // update all dynamic elements
- el.redrawSlider();
- }
- }
- /**
- * ===================================================================================
- * = 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.outerWidth();
- }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();
- }
- /* If the position doesn't exist
- * (e.g. if you destroy the slider on a next click),
- * it doesn't throw an error.
- */
- if ("undefined" !== typeof(position)) {
- var value = slider.settings.mode == 'horizontal' ? -(position.left - moveBy) : -position.top;
- // plugin values to be animated
- 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 = parseInt(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 = parseInt(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;
- }
- /**
- * Update all dynamic slider elements
- */
- el.redrawSlider = function(){
- // resize all children in ratio to new screen size
- slider.children.add(el.find('.bx-clone')).outerWidth(getSlideWidth());
- // adjust the height
- slider.viewport.css('height', getViewportHeight());
- // update the slide position
- if(!slider.settings.ticker) setSlidePosition();
- // 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);
- }
- }
- /**
- * 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.each(function() {
- $(this).data("origStyle") != undefined ? $(this).attr("style", $(this).data("origStyle")) : $(this).removeAttr('style');
- });
- $(this).data("origStyle") != undefined ? this.attr("style", $(this).data("origStyle")) : $(this).removeAttr('style');
- $(this).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);
- if(slider.settings.responsive) $(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);
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