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Template:Freiburg2013 jquery
From 2013.igem.org
(Difference between revisions)
(Created page with "<html> <head> <script type="text/javascript"> /** * BxSlider v4.1.1 - Fully loaded, responsive content slider * http://bxslider.com * * Copyright 2012, Steven Wanderski - ht...") |
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* Released under the WTFPL license - http://sam.zoy.org/wtfpl/ | * Released under the WTFPL license - http://sam.zoy.org/wtfpl/ | ||
*/ | */ | ||
| - | |||
| + | ;(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 = $('<div class="bx-controls" />'); | ||
| + | // if captions are requested, add them | ||
| + | if(slider.settings.captions) appendCaptions(); | ||
| + | // check if startSlide is last slide | ||
| + | slider.active.last = slider.settings.startSlide == getPagerQty() - 1; | ||
| + | // if video is true, set up the fitVids plugin | ||
| + | if(slider.settings.video) el.fitVids(); | ||
| + | // set the default preload selector (visible) | ||
| + | var preloadSelector = slider.children.eq(slider.settings.startSlide); | ||
| + | if (slider.settings.preloadImages == "all") preloadSelector = slider.children; | ||
| + | // only check for control addition if not in "ticker" mode | ||
| + | if(!slider.settings.ticker){ | ||
| + | // if pager is requested, add it | ||
| + | if(slider.settings.pager) appendPager(); | ||
| + | // if controls are requested, add them | ||
| + | if(slider.settings.controls) appendControls(); | ||
| + | // if auto is true, and auto controls are requested, add them | ||
| + | if(slider.settings.auto && slider.settings.autoControls) appendControlsAuto(); | ||
| + | // if any control option is requested, add the controls wrapper | ||
| + | if(slider.settings.controls || slider.settings.autoControls || slider.settings.pager) slider.viewport.after(slider.controls.el); | ||
| + | // if ticker mode, do not allow a pager | ||
| + | }else{ | ||
| + | slider.settings.pager = false; | ||
| + | } | ||
| + | // preload all images, then perform final DOM / CSS modifications that depend on images being loaded | ||
| + | loadElements(preloadSelector, start); | ||
| + | } | ||
| + | |||
| + | var loadElements = function(selector, callback){ | ||
| + | var total = selector.find('img, iframe').length; | ||
| + | if (total == 0){ | ||
| + | callback(); | ||
| + | return; | ||
| + | } | ||
| + | var count = 0; | ||
| + | selector.find('img, iframe').each(function(){ | ||
| + | if($(this).is('img')) $(this).attr('src', $(this).attr('src') + '?timestamp=' + new Date().getTime()); | ||
| + | $(this).load(function(){ | ||
| + | setTimeout(function(){ | ||
| + | if(++count == total) callback(); | ||
| + | }, 0) | ||
| + | }); | ||
| + | }); | ||
| + | } | ||
| + | |||
| + | /** | ||
| + | * 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); | ||
</script> | </script> | ||
</head> | </head> | ||
</html> | </html> | ||
Revision as of 15:43, 27 August 2013
