(function($){ var plugin = {}; var defaults = { 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', touchenabled: true, swipethreshold: 50, onetoonetouch: true, preventdefaultswipex: true, preventdefaultswipey: false, pager: true, pagertype: 'full', pagershortseparator: ' / ', pagerselector: null, buildpager: null, pagercustom: null, controls: true, nexttext: 'next', prevtext: 'prev', nextselector: null, prevselector: null, autocontrols: false, starttext: 'start', stoptext: 'stop', autocontrolscombine: false, autocontrolsselector: null, auto: false, pause: 4000, autostart: true, autodirection: 'next', autohover: false, autodelay: 0, autoslideforonepage: false, minslides: 1, maxslides: 1, moveslides: 0, slidewidth: 0, onsliderload: function() {}, onslidebefore: function() {}, onslideafter: function() {}, onslidenext: function() {}, onslideprev: function() {}, onsliderresize: function() {} } $.fn.bxslider = function(options){ if(this.length == 0) return this; if(this.length > 1){ this.each(function(){$(this).bxslider(options)}); return this; } var slider = {}; var el = this; plugin.el = this; var windowwidth = $(window).width(); var windowheight = $(window).height(); var init = function(){ slider.settings = $.extend({}, defaults, options); slider.settings.slidewidth = parseint(slider.settings.slidewidth); slider.children = el.children(slider.settings.slideselector); 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(slider.settings.randomstart) slider.settings.startslide = math.floor(math.random() * slider.children.length); slider.active = { index: slider.settings.startslide } slider.carousel = slider.settings.minslides > 1 || slider.settings.maxslides > 1; if(slider.carousel) slider.settings.preloadimages = 'all'; 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); slider.working = false; slider.controls = {}; slider.interval = null; slider.animprop = slider.settings.mode == 'vertical' ? 'top' : 'left'; slider.usingcss = slider.settings.usecss && slider.settings.mode != 'fade' && (function(){ var div = document.createelement('div'); var props = ['webkitperspective', 'mozperspective', 'operspective', 'msperspective']; 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(slider.settings.mode == 'vertical') slider.settings.maxslides = slider.settings.minslides; el.data("origstyle", el.attr("style")); el.children(slider.settings.slideselector).each(function() { $(this).data("origstyle", $(this).attr("style")); }); setup(); } var setup = function(){ el.wrap('
'); slider.viewport = el.parent(); slider.loader = $(''); slider.viewport.prepend(slider.loader); el.css({ width: slider.settings.mode == 'horizontal' ? (slider.children.length * 100 + 215) + '%' : 'auto', position: 'relative' }); if(slider.usingcss && slider.settings.easing){ el.css('-' + slider.cssprefix + '-transition-timing-function', slider.settings.easing); }else if(!slider.settings.easing){ slider.settings.easing = 'swing'; } var slidesshowing = getnumberslidesshowing(); slider.viewport.css({ width: '100%', overflow: 'hidden', position: 'relative' }); slider.viewport.parent().css({ maxwidth: getviewportmaxwidth() }); if(!slider.settings.pager) { slider.viewport.parent().css({ margin: '0 auto 0px' }); } slider.children.css({ 'float': slider.settings.mode == 'horizontal' ? 'left' : 'none', liststyle: 'none', position: 'relative' }); 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(); // set the default preload selector (visible) var preloadselector = slider.children.eq(slider.settings.startslide); if (slider.settings.preloadimages == "all") preloadselector = slider.children; // only check for control addition if not in "ticker" mode if(!slider.settings.ticker){ // if pager is requested, add it if(slider.settings.pager) appendpager(); // if controls are requested, add them if(slider.settings.controls) appendcontrols(); // if auto is true, and auto controls are requested, add them if(slider.settings.auto && slider.settings.autocontrols) appendcontrolsauto(); // if any control option is requested, add the controls wrapper if(slider.settings.controls || slider.settings.autocontrols || slider.settings.pager) slider.viewport.after(slider.controls.el); // if ticker mode, do not allow a pager }else{ slider.settings.pager = false; } // preload all images, then perform final dom / css modifications that depend on images being loaded loadelements(preloadselector, start); } var loadelements = function(selector, callback){ var total = selector.find('img, iframe').length; if (total == 0){ callback(); return; } var count = 0; selector.find('img, iframe').each(function(){ $(this).one('load', function() { if(++count == total) callback(); }).each(function() { if(this.complete) $(this).load(); }); }); } /** * start the slider */ var start = function(){ // if infinite loop, prepare additional slides if(slider.settings.infiniteloop && slider.settings.mode != 'fade' && !slider.settings.ticker){ var slice = slider.settings.mode == 'vertical' ? slider.settings.minslides : slider.settings.maxslides; var sliceappend = slider.children.slice(0, slice).clone().addclass('bx-clone'); var sliceprepend = slider.children.slice(-slice).clone().addclass('bx-clone'); el.append(sliceappend).prepend(sliceprepend); } // remove the loading dom element slider.loader.remove(); // set the left / top position of "el" setslideposition(); // if "vertical" mode, always use adaptiveheight to prevent odd behavior if (slider.settings.mode == 'vertical') slider.settings.adaptiveheight = true; // set the viewport height slider.viewport.height(getviewportheight()); // make sure everything is positioned just right (same as a window resize) el.redrawslider(); // onsliderload callback slider.settings.onsliderload(slider.active.index); // slider has been fully initialized slider.initialized = true; // bind the resize call to the window if (slider.settings.responsive) $(window).bind('resize', resizewindow); // if auto is true 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(); } /** * 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(){ // 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() + 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; // if moveslides is specified by the user if(slider.settings.moveslides > 0){ if(slider.settings.infiniteloop){ pagerqty = math.ceil(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.outerwidth())), '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); } } } 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'); } pagerhtml += ''; }; // populate the pager element with pager links slider.pagerel.html(pagerhtml); } 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', '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', 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 = $(''); // 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); } } var appendcontrolsauto = function(){ slider.controls.start = $(''); slider.controls.stop = $(''); // 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('