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Tue, 27 Oct 2020 13:20:28 +0000 (UTC) Received: from localhost.localdomain.com (ovpn-115-46.ams2.redhat.com [10.36.115.46]) by smtp.corp.redhat.com (Postfix) with ESMTP id C107A1972B; Tue, 27 Oct 2020 13:20:25 +0000 (UTC) From: =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= To: qemu-devel@nongnu.org Subject: [qemu-web PATCH v2 05/16] Introduce support for "bxslider" jquery add on Date: Tue, 27 Oct 2020 13:20:04 +0000 Message-Id: <20201027132015.621733-6-berrange@redhat.com> In-Reply-To: <20201027132015.621733-1-berrange@redhat.com> References: <20201027132015.621733-1-berrange@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=berrange@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/27 01:06:06 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: 0 X-Spam_score: -0.1 X-Spam_bar: / X-Spam_report: (-0.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, PDS_OTHER_BAD_TLD=1.999, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Paolo Bonzini , Thomas Huth , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" The "bxslider" provides an auto-rotating carosel of images. Signed-off-by: Daniel P. Berrangé --- _includes/assets.html | 4 + assets/css/jquery.bxslider.css | 179 ++++ assets/js/jquery.bxslider.js | 1607 ++++++++++++++++++++++++++++++++ 3 files changed, 1790 insertions(+) create mode 100644 assets/css/jquery.bxslider.css create mode 100644 assets/js/jquery.bxslider.js diff --git a/_includes/assets.html b/_includes/assets.html index 411a1ac..56d7042 100644 --- a/_includes/assets.html +++ b/_includes/assets.html @@ -24,3 +24,7 @@ {% endif %} + {% if page.bxslider %} + + + {% endif %} diff --git a/assets/css/jquery.bxslider.css b/assets/css/jquery.bxslider.css new file mode 100644 index 0000000..e817fe1 --- /dev/null +++ b/assets/css/jquery.bxslider.css @@ -0,0 +1,179 @@ +/** VARIABLES +===================================*/ +/** RESET AND LAYOUT +===================================*/ +.bx-wrapper { + position: relative; + margin-bottom: 60px; + padding: 0; + *zoom: 1; + -ms-touch-action: pan-y; + touch-action: pan-y; +} +.bx-wrapper img { + max-width: 100%; + display: block; +} +.bxslider { + margin: 0; + padding: 0; +} +ul.bxslider { + list-style: none; +} +.bx-viewport { + /*fix other elements on the page moving (on Chrome)*/ + -webkit-transform: translatez(0); +} +/** THEME +===================================*/ +.bx-wrapper { + /* Disabled for QEMU + -moz-box-shadow: 0 0 5px #ccc; + -webkit-box-shadow: 0 0 5px #ccc; + box-shadow: 0 0 5px #ccc; + border: 5px solid #fff; + background: #fff; + */ +} +.bx-wrapper .bx-pager, +.bx-wrapper .bx-controls-auto { + position: absolute; + bottom: -30px; + width: 100%; +} +/* LOADER */ +.bx-wrapper .bx-loading { + min-height: 50px; + background: url('images/bx_loader.gif') center center no-repeat #ffffff; + height: 100%; + width: 100%; + position: absolute; + top: 0; + left: 0; + z-index: 2000; +} +/* PAGER */ +.bx-wrapper .bx-pager { + text-align: center; + font-size: .85em; + font-family: Arial; + font-weight: bold; + color: #666; + padding-top: 20px; +} +.bx-wrapper .bx-pager.bx-default-pager a { + background: #666; + text-indent: -9999px; + display: block; + width: 10px; + height: 10px; + margin: 0 5px; + outline: 0; + -moz-border-radius: 5px; + -webkit-border-radius: 5px; + border-radius: 5px; +} +.bx-wrapper .bx-pager.bx-default-pager a:hover, +.bx-wrapper .bx-pager.bx-default-pager a.active, +.bx-wrapper .bx-pager.bx-default-pager a:focus { + background: #000; +} +.bx-wrapper .bx-pager-item, +.bx-wrapper .bx-controls-auto .bx-controls-auto-item { + display: inline-block; + vertical-align: bottom; + *zoom: 1; + *display: inline; +} +.bx-wrapper .bx-pager-item { + font-size: 0; + line-height: 0; +} +/* DIRECTION CONTROLS (NEXT / PREV) */ +.bx-wrapper .bx-prev { + left: 10px; + background: url('images/controls.png') no-repeat 0 -32px; +} +.bx-wrapper .bx-prev:hover, +.bx-wrapper .bx-prev:focus { + background-position: 0 0; +} +.bx-wrapper .bx-next { + right: 10px; + background: url('images/controls.png') no-repeat -43px -32px; +} +.bx-wrapper .bx-next:hover, +.bx-wrapper .bx-next:focus { + background-position: -43px 0; +} +.bx-wrapper .bx-controls-direction a { + position: absolute; + top: 50%; + margin-top: -16px; + outline: 0; + width: 32px; + height: 32px; + text-indent: -9999px; + z-index: 9999; +} +.bx-wrapper .bx-controls-direction a.disabled { + display: none; +} +/* AUTO CONTROLS (START / STOP) */ +.bx-wrapper .bx-controls-auto { + text-align: center; +} +.bx-wrapper .bx-controls-auto .bx-start { + display: block; + text-indent: -9999px; + width: 10px; + height: 11px; + outline: 0; + background: url('images/controls.png') -86px -11px no-repeat; + margin: 0 3px; +} +.bx-wrapper .bx-controls-auto .bx-start:hover, +.bx-wrapper .bx-controls-auto .bx-start.active, +.bx-wrapper .bx-controls-auto .bx-start:focus { + background-position: -86px 0; +} +.bx-wrapper .bx-controls-auto .bx-stop { + display: block; + text-indent: -9999px; + width: 9px; + height: 11px; + outline: 0; + background: url('images/controls.png') -86px -44px no-repeat; + margin: 0 3px; +} +.bx-wrapper .bx-controls-auto .bx-stop:hover, +.bx-wrapper .bx-controls-auto .bx-stop.active, +.bx-wrapper .bx-controls-auto .bx-stop:focus { + background-position: -86px -33px; +} +/* PAGER WITH AUTO-CONTROLS HYBRID LAYOUT */ +.bx-wrapper .bx-controls.bx-has-controls-auto.bx-has-pager .bx-pager { + text-align: left; + width: 80%; +} +.bx-wrapper .bx-controls.bx-has-controls-auto.bx-has-pager .bx-controls-auto { + right: 0; + width: 35px; +} +/* IMAGE CAPTIONS */ +.bx-wrapper .bx-caption { + position: absolute; + bottom: 0; + left: 0; + background: #666; + background: rgba(80, 80, 80, 0.75); + width: 100%; +} +.bx-wrapper .bx-caption span { + color: #fff; + font-family: Arial; + display: block; + font-size: .85em; + padding: 10px; +} diff --git a/assets/js/jquery.bxslider.js b/assets/js/jquery.bxslider.js new file mode 100644 index 0000000..67ac4d8 --- /dev/null +++ b/assets/js/jquery.bxslider.js @@ -0,0 +1,1607 @@ +/** + * bxSlider v4.2.12 + * Copyright 2013-2015 Steven Wanderski + * Written while drinking Belgian ales and listening to jazz + * Licensed under MIT (http://opensource.org/licenses/MIT) + */ + +;(function($) { + + 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, + slideZIndex: 50, + wrapperClass: 'bx-wrapper', + + // TOUCH + touchEnabled: true, + swipeThreshold: 50, + oneToOneTouch: true, + preventDefaultSwipeX: true, + preventDefaultSwipeY: false, + + // ACCESSIBILITY + ariaLive: true, + ariaHidden: true, + + // KEYBOARD + keyboardEnabled: 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', + stopAutoOnClick: false, + autoHover: false, + autoDelay: 0, + autoSlideForOnePage: false, + + // CAROUSEL + minSlides: 1, + maxSlides: 1, + moveSlides: 0, + slideWidth: 0, + shrinkItems: false, + + // CALLBACKS + onSliderLoad: function() { return true; }, + onSlideBefore: function() { return true; }, + onSlideAfter: function() { return true; }, + onSlideNext: function() { return true; }, + onSlidePrev: function() { return true; }, + onSliderResize: function() { return true; } + }; + + $.fn.bxSlider = function(options) { + + if (this.length === 0) { + return this; + } + + // support multiple 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 + el = this, + // get the original window dimens (thanks a lot IE) + windowWidth = $(window).width(), + windowHeight = $(window).height(); + + // Return if slider is already initialized + if ($(el).data('bxSlider')) { return; } + + /** + * =================================================================================== + * = PRIVATE FUNCTIONS + * =================================================================================== + */ + + /** + * Initializes namespace settings to be used throughout plugin + */ + var init = function() { + // Return if slider is already initialized + if ($(el).data('bxSlider')) { return; } + // 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 ? true : false; + // 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 + props = ['WebkitPerspective', 'MozPerspective', 'OPerspective', 'msPerspective']; + // test for each property + for (var i = 0; i < props.length; i++) { + 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() { + var preloadSelector = slider.children.eq(slider.settings.startSlide); // set the default preload selector (visible) + + // wrap el in a wrapper + el.wrap('
'); + // store a namespace reference to .bx-viewport + slider.viewport = el.parent(); + + // add aria-live if the setting is enabled and ticker mode is disabled + if (slider.settings.ariaLive && !slider.settings.ticker) { + slider.viewport.attr('aria-live', 'polite'); + } + // add a loading div to display while images are loading + slider.loader = $('
'); + 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 * 1000 + 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'; + } + // make modifications to the viewport (.bx-viewport) + slider.viewport.css({ + width: '100%', + overflow: 'hidden', + position: 'relative' + }); + slider.viewport.parent().css({ + maxWidth: getViewportMaxWidth() + }); + // 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: slider.settings.slideZIndex, display: 'block'}); + } + // create an element to contain all slider controls (pager, start / stop, etc) + slider.controls.el = $('
'); + // 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(); } + if (slider.settings.preloadImages === 'all' || slider.settings.ticker) { preloadSelector = slider.children; } + // only check for control addition if not in "ticker" mode + if (!slider.settings.ticker) { + // 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 pager is requested, add it + if (slider.settings.pager) { appendPager(); } + // 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; + } + loadElements(preloadSelector, start); + }; + + var loadElements = function(selector, callback) { + var total = selector.find('img:not([src=""]), iframe').length, + count = 0; + if (total === 0) { + callback(); + return; + } + selector.find('img:not([src=""]), iframe').each(function() { + $(this).one('load error', function() { + if (++count === total) { callback(); } + }).each(function() { + if (this.complete) { $(this).trigger('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, + sliceAppend = slider.children.slice(0, slice).clone(true).addClass('bx-clone'), + slicePrepend = slider.children.slice(-slice).clone(true).addClass('bx-clone'); + if (slider.settings.ariaHidden) { + sliceAppend.attr('aria-hidden', true); + slicePrepend.attr('aria-hidden', true); + } + 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.call(el, 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 and has more than 1 page, start the show + if (slider.settings.auto && slider.settings.autoStart && (getPagerQty() > 1 || slider.settings.autoSlideForOnePage)) { 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(); } + // if keyboardEnabled is true, setup the keyboard events + if (slider.settings.keyboardEnabled && !slider.settings.ticker) { + $(document).keydown(keyPress); + } + }; + + /** + * 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()); + } + + if (slider.viewport.css('box-sizing') === 'border-box') { + height += parseFloat(slider.viewport.css('padding-top')) + parseFloat(slider.viewport.css('padding-bottom')) + + parseFloat(slider.viewport.css('border-top-width')) + parseFloat(slider.viewport.css('border-bottom-width')); + } else if (slider.viewport.css('box-sizing') === 'padding-box') { + height += parseFloat(slider.viewport.css('padding-top')) + parseFloat(slider.viewport.css('padding-bottom')); + } + + 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() { + var newElWidth = slider.settings.slideWidth, // start with any user-supplied slide width + wrapWidth = slider.viewport.width(); // get the current 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) { + return newElWidth; + } else if (wrapWidth < slider.minThreshold) { + newElWidth = (wrapWidth - (slider.settings.slideMargin * (slider.settings.minSlides - 1))) / slider.settings.minSlides; + } else if (slider.settings.shrinkItems) { + newElWidth = Math.floor((wrapWidth + slider.settings.slideMargin) / (Math.ceil((wrapWidth + slider.settings.slideMargin) / (newElWidth + slider.settings.slideMargin))) - slider.settings.slideMargin); + } + } + return newElWidth; + }; + + /** + * Returns the number of slides currently visible in the viewport (includes partially visible slides) + */ + var getNumberSlidesShowing = function() { + var slidesShowing = 1, + childWidth = null; + 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 maxThreshold, 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 { + childWidth = slider.children.first().width() + slider.settings.slideMargin; + slidesShowing = Math.floor((slider.viewport.width() + + slider.settings.slideMargin) / 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, + breakPoint = 0, + counter = 0; + // if moveSlides is specified by the user + if (slider.settings.moveSlides > 0) { + if (slider.settings.infiniteLoop) { + pagerQty = Math.ceil(slider.children.length / getMoveBy()); + } else { + // 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 individual 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() { + var position, lastChild, lastShowingIndex; + // 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 + lastChild = slider.children.last(); + position = lastChild.position(); + // set the left position + setPositionProperty(-(position.left - (slider.viewport.width() - lastChild.outerWidth())), 'reset', 0); + } else if (slider.settings.mode === 'vertical') { + // get the last showing index's position + lastShowingIndex = slider.children.length - slider.settings.minSlides; + 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 + 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 respective 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) 'slide', '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) { + var animateObj, propValue; + // use CSS transform + if (slider.usingCSS) { + // determine the translate3d value + 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); + if (duration !== 0) { + // bind a callback method - executes when CSS transition completes + el.bind('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd', function(e) { + //make sure it's the correct one + if (!$(e.target).is(el)) { return; } + // unbind the callback + el.unbind('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd'); + updateAfterSlideTransition(); + }); + } else { //duration = 0 + 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); + if (duration !== 0) { + el.bind('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd', function(e) { + //make sure it's the correct one + if (!$(e.target).is(el)) { return; } + // unbind the callback + el.unbind('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd'); + // reset the position + setPositionProperty(params.resetValue, 'reset', 0); + // start the loop again + tickerLoop(); + }); + } else { //duration = 0 + setPositionProperty(params.resetValue, 'reset', 0); + tickerLoop(); + } + } + // use JS animate + } else { + 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, duration, '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 = '', + linkContent = '', + pagerQty = getPagerQty(); + // loop through each pager item + for (var i = 0; i < pagerQty; i++) { + 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) || slider.settings.pagerCustom) { + 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 += '
' + linkContent + '
'; + } + // 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 = $('
'); + // 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.on('click touchend', 'a', clickPagerBind); + }; + + /** + * Appends prev / next controls to the controls element + */ + var appendControls = function() { + slider.controls.next = $('' + slider.settings.nextText + ''); + slider.controls.prev = $('' + slider.settings.prevText + ''); + // bind click actions to the controls + slider.controls.next.bind('click touchend', clickNextBind); + slider.controls.prev.bind('click touchend', clickPrevBind); + // if nextSelector was supplied, populate it + if (slider.settings.nextSelector) { + $(slider.settings.nextSelector).append(slider.controls.next); + } + // if prevSelector 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 = $('
'); + // 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 = $('
' + slider.settings.startText + '
'); + slider.controls.stop = $('
' + slider.settings.stopText + '
'); + // add the controls to the DOM + slider.controls.autoEl = $('
'); + // bind click actions to the controls + slider.controls.autoEl.on('click', '.bx-start', clickStartBind); + slider.controls.autoEl.on('click', '.bx-stop', 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('
' + title + '
'); + } + }); + }; + + /** + * Click next binding + * + * @param e (event) + * - DOM event object + */ + var clickNextBind = function(e) { + e.preventDefault(); + if (slider.controls.el.hasClass('disabled')) { return; } + // if auto show is running, stop it + if (slider.settings.auto && slider.settings.stopAutoOnClick) { el.stopAuto(); } + el.goToNextSlide(); + }; + + /** + * Click prev binding + * + * @param e (event) + * - DOM event object + */ + var clickPrevBind = function(e) { + e.preventDefault(); + if (slider.controls.el.hasClass('disabled')) { return; } + // if auto show is running, stop it + if (slider.settings.auto && slider.settings.stopAutoOnClick) { el.stopAuto(); } + el.goToPrevSlide(); + }; + + /** + * 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) { + var pagerLink, pagerIndex; + e.preventDefault(); + if (slider.controls.el.hasClass('disabled')) { + return; + } + // if auto show is running, stop it + if (slider.settings.auto && slider.settings.stopAutoOnClick) { el.stopAuto(); } + pagerLink = $(e.currentTarget); + if (pagerLink.attr('data-slide-index') !== undefined) { + 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); } + } + }; + + /** + * 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 infinite 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 (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.call(el, 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'); + } + } + }; + + /** + * Initializes 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(); + + //add focus and blur events to ensure its running if timeout gets paused + $(window).focus(function() { + el.startAuto(); + }).blur(function() { + el.stopAuto(); + }); + } + // 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 argument 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 argument which will prevent control update + el.startAuto(true); + // reset the autoPaused value + slider.autoPaused = null; + } + }); + } + }; + + /** + * Initializes the ticker process + */ + var initTicker = function() { + var startPosition = 0, + position, transform, value, idx, ratio, property, newSpeed, totalDimens; + // 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')); + 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) { + if (slider.usingCSS) { + idx = slider.settings.mode === 'horizontal' ? 4 : 5; + slider.viewport.hover(function() { + transform = el.css('-' + slider.cssPrefix + '-transform'); + value = parseFloat(transform.split(',')[idx]); + setPositionProperty(value, 'reset', 0); + }, function() { + 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) + ratio = slider.settings.speed / totalDimens; + // determine which property to use + property = slider.settings.mode === 'horizontal' ? 'left' : 'top'; + // calculate the new speed + newSpeed = ratio * (totalDimens - (Math.abs(parseInt(value)))); + tickerLoop(newSpeed); + }); + } else { + // on el hover + slider.viewport.hover(function() { + el.stop(); + }, function() { + // calculate the total width of children (used to calculate the speed ratio) + 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) + ratio = slider.settings.speed / totalDimens; + // determine which property to use + property = slider.settings.mode === 'horizontal' ? 'left' : 'top'; + // calculate the new speed + 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) { + var speed = resumeSpeed ? resumeSpeed : slider.settings.speed, + position = {left: 0, top: 0}, + reset = {left: 0, top: 0}, + animateProperty, resetValue, params; + + // 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(); + } + animateProperty = slider.settings.mode === 'horizontal' ? -position.left : -position.top; + resetValue = slider.settings.mode === 'horizontal' ? -reset.left : -reset.top; + params = {resetValue: resetValue}; + setPositionProperty(animateProperty, 'ticker', speed, params); + }; + + /** + * Check if el is on screen + */ + var isOnScreen = function(el) { + var win = $(window), + viewport = { + top: win.scrollTop(), + left: win.scrollLeft() + }, + bounds = el.offset(); + + viewport.right = viewport.left + win.width(); + viewport.bottom = viewport.top + win.height(); + bounds.right = bounds.left + el.outerWidth(); + bounds.bottom = bounds.top + el.outerHeight(); + + return (!(viewport.right < bounds.left || viewport.left > bounds.right || viewport.bottom < bounds.top || viewport.top > bounds.bottom)); + }; + + /** + * Initializes keyboard events + */ + var keyPress = function(e) { + var activeElementTag = document.activeElement.tagName.toLowerCase(), + tagFilters = 'input|textarea', + p = new RegExp(activeElementTag,['i']), + result = p.exec(tagFilters); + + if (result == null && isOnScreen(el)) { + if (e.keyCode === 39) { + clickNextBind(e); + return false; + } else if (e.keyCode === 37) { + clickPrevBind(e); + return false; + } + } + }; + + /** + * 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 MSPointerDown pointerdown', onTouchStart); + + //for browsers that have implemented pointer events and fire a click after + //every pointerup regardless of whether pointerup is on same screen location as pointerdown or not + slider.viewport.on('click', '.bxslider a', function(e) { + if (slider.viewport.hasClass('click-disabled')) { + e.preventDefault(); + slider.viewport.removeClass('click-disabled'); + } + }); + }; + + /** + * Event handler for "touchstart" + * + * @param e (event) + * - DOM event object + */ + var onTouchStart = function(e) { + //disable slider controls while user is interacting with slides to avoid slider freeze that happens on touch devices when a slide swipe happens immediately after interacting with slider controls + slider.controls.el.addClass('disabled'); + + if (slider.working) { + e.preventDefault(); + slider.controls.el.removeClass('disabled'); + } else { + // record the original position when touch starts + slider.touch.originalPos = el.position(); + var orig = e.originalEvent, + touchPoints = (typeof orig.changedTouches !== 'undefined') ? orig.changedTouches : [orig]; + // record the starting touch x, y coordinates + slider.touch.start.x = touchPoints[0].pageX; + slider.touch.start.y = touchPoints[0].pageY; + + if (slider.viewport.get(0).setPointerCapture) { + slider.pointerId = orig.pointerId; + slider.viewport.get(0).setPointerCapture(slider.pointerId); + } + // bind a "touchmove" event to the viewport + slider.viewport.bind('touchmove MSPointerMove pointermove', onTouchMove); + // bind a "touchend" event to the viewport + slider.viewport.bind('touchend MSPointerUp pointerup', onTouchEnd); + slider.viewport.bind('MSPointerCancel pointercancel', onPointerCancel); + } + }; + + /** + * Cancel Pointer for Windows Phone + * + * @param e (event) + * - DOM event object + */ + var onPointerCancel = function(e) { + /* onPointerCancel handler is needed to deal with situations when a touchend + doesn't fire after a touchstart (this happens on windows phones only) */ + setPositionProperty(slider.touch.originalPos.left, 'reset', 0); + + //remove handlers + slider.controls.el.removeClass('disabled'); + slider.viewport.unbind('MSPointerCancel pointercancel', onPointerCancel); + slider.viewport.unbind('touchmove MSPointerMove pointermove', onTouchMove); + slider.viewport.unbind('touchend MSPointerUp pointerup', onTouchEnd); + if (slider.viewport.get(0).releasePointerCapture) { + slider.viewport.get(0).releasePointerCapture(slider.pointerId); + } + }; + + /** + * Event handler for "touchmove" + * + * @param e (event) + * - DOM event object + */ + var onTouchMove = function(e) { + var orig = e.originalEvent, + touchPoints = (typeof orig.changedTouches !== 'undefined') ? orig.changedTouches : [orig], + // if scrolling on y axis, do not prevent default + xMovement = Math.abs(touchPoints[0].pageX - slider.touch.start.x), + yMovement = Math.abs(touchPoints[0].pageY - slider.touch.start.y), + value = 0, + change = 0; + + // 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) { + // if horizontal, drag along x axis + if (slider.settings.mode === 'horizontal') { + change = touchPoints[0].pageX - slider.touch.start.x; + value = slider.touch.originalPos.left + change; + // if vertical, drag along y axis + } else { + change = touchPoints[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 MSPointerMove pointermove', onTouchMove); + //enable slider controls as soon as user stops interacing with slides + slider.controls.el.removeClass('disabled'); + var orig = e.originalEvent, + touchPoints = (typeof orig.changedTouches !== 'undefined') ? orig.changedTouches : [orig], + value = 0, + distance = 0; + // record end x, y positions + slider.touch.end.x = touchPoints[0].pageX; + slider.touch.end.y = touchPoints[0].pageY; + // if fade mode, check if absolute x distance clears the threshold + if (slider.settings.mode === 'fade') { + distance = Math.abs(slider.touch.start.x - slider.touch.end.x); + if (distance >= slider.settings.swipeThreshold) { + if (slider.touch.start.x > slider.touch.end.x) { + el.goToNextSlide(); + } else { + el.goToPrevSlide(); + } + el.stopAuto(); + } + // not fade mode + } else { + // 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) { + if (distance < 0) { + el.goToNextSlide(); + } else { + el.goToPrevSlide(); + } + el.stopAuto(); + } else { + // el.animate(property, 200); + setPositionProperty(value, 'reset', 200); + } + } + } + slider.viewport.unbind('touchend MSPointerUp pointerup', onTouchEnd); + if (slider.viewport.get(0).releasePointerCapture) { + slider.viewport.get(0).releasePointerCapture(slider.pointerId); + } + }; + + /** + * Window resize event callback + */ + var resizeWindow = function(e) { + // don't do anything if slider isn't initialized. + if (!slider.initialized) { return; } + // Delay if slider working. + if (slider.working) { + window.setTimeout(resizeWindow, 10); + } else { + // get the new window dimens (again, thank you IE) + var windowWidthNew = $(window).width(), + 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(); + // Call user resize handler + slider.settings.onSliderResize.call(el, slider.active.index); + } + } + }; + + /** + * Adds an aria-hidden=true attribute to each element + * + * @param startVisibleIndex (int) + * - the first visible element's index + */ + var applyAriaHiddenAttributes = function(startVisibleIndex) { + var numberOfSlidesShowing = getNumberSlidesShowing(); + // only apply attributes if the setting is enabled and not in ticker mode + if (slider.settings.ariaHidden && !slider.settings.ticker) { + // add aria-hidden=true to all elements + slider.children.attr('aria-hidden', 'true'); + // get the visible elements and change to aria-hidden=false + slider.children.slice(startVisibleIndex, startVisibleIndex + numberOfSlidesShowing).attr('aria-hidden', 'false'); + } + }; + + /** + * Returns index according to present page range + * + * @param slideOndex (int) + * - the desired slide index + */ + var setSlideIndex = function(slideIndex) { + if (slideIndex < 0) { + if (slider.settings.infiniteLoop) { + return getPagerQty() - 1; + }else { + //we don't go to undefined slides + return slider.active.index; + } + // if slideIndex is greater than children length, set active index to 0 (this happens during infinite loop) + } else if (slideIndex >= getPagerQty()) { + if (slider.settings.infiniteLoop) { + return 0; + } else { + //we don't move to undefined pages + return slider.active.index; + } + // set active index to requested slide + } else { + return slideIndex; + } + }; + + /** + * =================================================================================== + * = 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) { + // onSlideBefore, onSlideNext, onSlidePrev callbacks + // Allow transition canceling based on returned value + var performTransition = true, + moveBy = 0, + position = {left: 0, top: 0}, + lastChild = null, + lastShowingIndex, eq, value, requestEl; + // store the old index + slider.oldIndex = slider.active.index; + //set new index + slider.active.index = setSlideIndex(slideIndex); + + // if plugin is currently in motion, ignore request + if (slider.working || slider.active.index === slider.oldIndex) { return; } + // declare that plugin is in motion + slider.working = true; + + performTransition = slider.settings.onSlideBefore.call(el, slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index); + + // If transitions canceled, reset and return + if (typeof (performTransition) !== 'undefined' && !performTransition) { + slider.active.index = slider.oldIndex; // restore old index + slider.working = false; // is not in motion + return; + } + + if (direction === 'next') { + // Prevent canceling in future functions or lack there-of from negating previous commands to cancel + if (!slider.settings.onSlideNext.call(el, slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index)) { + performTransition = false; + } + } else if (direction === 'prev') { + // Prevent canceling in future functions or lack there-of from negating previous commands to cancel + if (!slider.settings.onSlidePrev.call(el, slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index)) { + performTransition = false; + } + } + + // check if last slide + slider.active.last = slider.active.index >= getPagerQty() - 1; + // update the pager with active class + if (slider.settings.pager || slider.settings.pagerCustom) { 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', slider.settings.slideZIndex + 1).fadeIn(slider.settings.speed, function() { + $(this).css('zIndex', slider.settings.slideZIndex); + 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); + } + // 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 + 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 + 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 + eq = slider.settings.moveSlides === 1 ? slider.settings.maxSlides - getMoveBy() : ((getPagerQty() - 1) * getMoveBy()) - (slider.children.length - slider.settings.maxSlides); + 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) { + //parseInt is applied to allow floats for slides/page + requestEl = slideIndex * parseInt(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 (typeof (position) !== 'undefined') { + value = slider.settings.mode === 'horizontal' ? -(position.left - moveBy) : -position.top; + // plugin values to be animated + setPositionProperty(value, 'slide', slider.settings.speed); + } else { + slider.working = false; + } + } + if (slider.settings.ariaHidden) { applyAriaHiddenAttributes(slider.active.index * getMoveBy()); } + }; + + /** + * 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() { + if (slider.settings.autoDirection === 'next') { + el.goToNextSlide(); + } else { + 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 current slide element + */ + el.getCurrentSlideElement = function() { + return slider.children.eq(slider.active.index); + }; + + /** + * Returns a slide element + * @param index (int) + * - The index (zero-based) of the element you want returned. + */ + el.getSlideElement = function(index) { + return slider.children.eq(index); + }; + + /** + * Returns number of slides in show + */ + el.getSlideCount = function() { + return slider.children.length; + }; + + /** + * Return slider.working variable + */ + el.isWorking = function() { + return slider.working; + }; + + /** + * 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); + } + if (slider.settings.ariaHidden) { applyAriaHiddenAttributes(slider.active.index * getMoveBy()); } + }; + + /** + * 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; + $('.bx-clone', this).remove(); + slider.children.each(function() { + if ($(this).data('origStyle') !== undefined) { + $(this).attr('style', $(this).data('origStyle')); + } else { + $(this).removeAttr('style'); + } + }); + if ($(this).data('origStyle') !== undefined) { + this.attr('style', $(this).data('origStyle')); + } else { + $(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.settings.controls && !slider.settings.pagerCustom) { 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); } + if (slider.settings.keyboardEnabled) { $(document).unbind('keydown', keyPress); } + //remove self reference in data + $(this).removeData('bxSlider'); + }; + + /** + * Reload the slider (revert all DOM changes, and re-initialize) + */ + el.reloadSlider = function(settings) { + if (settings !== undefined) { options = settings; } + el.destroySlider(); + init(); + //store reference to self in order to access public functions later + $(el).data('bxSlider', this); + }; + + init(); + + $(el).data('bxSlider', this); + + // returns the current jQuery object + return this; + }; + +})(jQuery);