https://www.ca-se.eu/core/js/jquery.bxslider.js

1/**
2 * bxSlider v4.2.1d
3 * Copyright 2013-2017 Steven Wanderski
4 * Written while drinking Belgian ales and listening to jazz
5 * Licensed under MIT (http://opensource.org/licenses/MIT)
6 */
7
8;(function($) {
9
10  var defaults = {
11
12    // GENERAL
13    mode: 'horizontal',
14    slideSelector: '',
15    infiniteLoop: true,
16    hideControlOnEnd: false,
17    speed: 500,
18    easing: null,
19    slideMargin: 0,
20    startSlide: 0,
21    randomStart: false,
22    captions: false,
23    ticker: false,
24    tickerHover: false,
25    adaptiveHeight: false,
26    adaptiveHeightSpeed: 500,
27    video: false,
28    useCSS: true,
29    preloadImages: 'visible',
30    responsive: true,
31    slideZIndex: 50,
32    wrapperClass: 'bx-wrapper',
33
34    // TOUCH
35    touchEnabled: true,
36    swipeThreshold: 50,
37    oneToOneTouch: true,
38    preventDefaultSwipeX: true,
39    preventDefaultSwipeY: false,
40
41    // ACCESSIBILITY
42    ariaLive: true,
43    ariaHidden: true,
44
45    // KEYBOARD
46    keyboardEnabled: false,
47
48    // PAGER
49    pager: true,
50    pagerType: 'full',
51    pagerShortSeparator: ' / ',
52    pagerSelector: null,
53    buildPager: null,
54    pagerCustom: null,
55
56    // CONTROLS
57    controls: true,
58    nextText: 'Next',
59    prevText: 'Prev',
60    nextSelector: null,
61    prevSelector: null,
62    autoControls: false,
63    startText: 'Start',
64    stopText: 'Stop',
65    autoControlsCombine: false,
66    autoControlsSelector: null,
67
68    // AUTO
69    auto: false,
70    pause: 4000,
71    autoStart: true,
72    autoDirection: 'next',
73    stopAutoOnClick: false,
74    autoHover: false,
75    autoDelay: 0,
76    autoSlideForOnePage: false,
77
78    // CAROUSEL
79    minSlides: 1,
80    maxSlides: 1,
81    moveSlides: 0,
82    slideWidth: 0,
83    shrinkItems: false,
84
85    // CALLBACKS
86    onSliderLoad: function() { return true; },
87    onSlideBefore: function() { return true; },
88    onSlideAfter: function() { return true; },
89    onSlideNext: function() { return true; },
90    onSlidePrev: function() { return true; },
91    onSliderResize: function() { return true; },
92	onAutoChange: function() { return true; } //calls when auto slides starts and stops
93  };
94
95  $.fn.bxSlider = function(options) {
96
97    if (this.length === 0) {
98      return this;
99    }
100
101    // support multiple elements
102    if (this.length > 1) {
103      this.each(function() {
104        $(this).bxSlider(options);
105      });
106      return this;
107    }
108
109    // create a namespace to be used throughout the plugin
110    var slider = {},
111    // set a reference to our slider element
112    el = this,
113    // get the original window dimens (thanks a lot IE)
114    windowWidth = $(window).width(),
115    windowHeight = $(window).height();
116
117    // Return if slider is already initialized
118    if ($(el).data('bxSlider')) { return; }
119
120    /**
121     * ===================================================================================
122     * = PRIVATE FUNCTIONS
123     * ===================================================================================
124     */
125
126    /**
127     * Initializes namespace settings to be used throughout plugin
128     */
129    var init = function() {
130      // Return if slider is already initialized
131      if ($(el).data('bxSlider')) { return; }
132      // merge user-supplied options with the defaults
133      slider.settings = $.extend({}, defaults, options);
134      // parse slideWidth setting
135      slider.settings.slideWidth = parseInt(slider.settings.slideWidth);
136      // store the original children
137      slider.children = el.children(slider.settings.slideSelector);
138      // check if actual number of slides is less than minSlides / maxSlides
139      if (slider.children.length < slider.settings.minSlides) { slider.settings.minSlides = slider.children.length; }
140      if (slider.children.length < slider.settings.maxSlides) { slider.settings.maxSlides = slider.children.length; }
141      // if random start, set the startSlide setting to random number
142      if (slider.settings.randomStart) { slider.settings.startSlide = Math.floor(Math.random() * slider.children.length); }
143      // store active slide information
144      slider.active = { index: slider.settings.startSlide };
145      // store if the slider is in carousel mode (displaying / moving multiple slides)
146      slider.carousel = slider.settings.minSlides > 1 || slider.settings.maxSlides > 1;
147      // if carousel, force preloadImages = 'all'
148      if (slider.carousel) { slider.settings.preloadImages = 'all'; }
149      // calculate the min / max width thresholds based on min / max number of slides
150      // used to setup and update carousel slides dimensions
151      slider.minThreshold = (slider.settings.minSlides * slider.settings.slideWidth) + ((slider.settings.minSlides - 1) * slider.settings.slideMargin);
152      slider.maxThreshold = (slider.settings.maxSlides * slider.settings.slideWidth) + ((slider.settings.maxSlides - 1) * slider.settings.slideMargin);
153      // store the current state of the slider (if currently animating, working is true)
154      slider.working = false;
155      // initialize the controls object
156      slider.controls = {};
157      // initialize an auto interval
158      slider.interval = null;
159      // determine which property to use for transitions
160      slider.animProp = slider.settings.mode === 'vertical' ? 'top' : 'left';
161      // determine if hardware acceleration can be used
162      slider.usingCSS = slider.settings.useCSS && slider.settings.mode !== 'fade' && (function() {
163        // create our test div element
164        var div = document.createElement('div'),
165        // css transition properties
166        props = ['WebkitPerspective', 'MozPerspective', 'OPerspective', 'msPerspective'];
167        // test for each property
168        for (var i = 0; i < props.length; i++) {
169          if (div.style[props[i]] !== undefined) {
170            slider.cssPrefix = props[i].replace('Perspective', '').toLowerCase();
171            slider.animProp = '-' + slider.cssPrefix + '-transform';
172            return true;
173          }
174        }
175        return false;
176      }());
177      // if vertical mode always make maxSlides and minSlides equal
178      if (slider.settings.mode === 'vertical') { slider.settings.maxSlides = slider.settings.minSlides; }
179      // save original style data
180      el.data('origStyle', el.attr('style'));
181      el.children(slider.settings.slideSelector).each(function() {
182        $(this).data('origStyle', $(this).attr('style'));
183      });
184
185      // perform all DOM / CSS modifications
186      setup();
187    };
188
189    /**
190     * Performs all DOM and CSS modifications
191     */
192    var setup = function() {
193      var preloadSelector = slider.children.eq(slider.settings.startSlide); // set the default preload selector (visible)
194
195      // wrap el in a wrapper
196      el.wrap('<div class="' + slider.settings.wrapperClass + '"><div class="bx-viewport"></div></div>');
197      // store a namespace reference to .bx-viewport
198      slider.viewport = el.parent();
199
200      // add aria-live if the setting is enabled and ticker mode is disabled
201      if (slider.settings.ariaLive && !slider.settings.ticker) {
202        slider.viewport.attr('aria-live', 'polite');
203      }
204      // add a loading div to display while images are loading
205      slider.loader = $('<div class="bx-loading" />');
206      slider.viewport.prepend(slider.loader);
207      // set el to a massive width, to hold any needed slides
208      // also strip any margin and padding from el
209      el.css({
210        width: slider.settings.mode === 'horizontal' ? (slider.children.length * 1000 + 215) + '%' : 'auto',
211        position: 'relative'
212      });
213      // if using CSS, add the easing property
214      if (slider.usingCSS && slider.settings.easing) {
215        el.css('-' + slider.cssPrefix + '-transition-timing-function', slider.settings.easing);
216      // if not using CSS and no easing value was supplied, use the default JS animation easing (swing)
217      } else if (!slider.settings.easing) {
218        slider.settings.easing = 'swing';
219      }
220      // make modifications to the viewport (.bx-viewport)
221      slider.viewport.css({
222        width: '100%',
223        overflow: 'hidden',
224        position: 'relative'
225      });
226      slider.viewport.parent().css({
227        maxWidth: getViewportMaxWidth()
228      });
229      // apply css to all slider children
230      slider.children.css({
231        // the float attribute is a reserved word in compressors like YUI compressor and need to be quoted #48
232        'float': slider.settings.mode === 'horizontal' ? 'left' : 'none',
233        listStyle: 'none',
234        position: 'relative',
235		'background-position':slider.settings.bgPos,
236		'background-size':slider.settings.bgSize,
237		'background-repeat':'no-repeat'
238      });
239      // apply the calculated width after the float is applied to prevent scrollbar interference
240      slider.children.css('width', getSlideWidth());
241      // if slideMargin is supplied, add the css
242      if (slider.settings.mode === 'horizontal' && slider.settings.slideMargin > 0) { slider.children.css('marginRight', slider.settings.slideMargin); }
243      if (slider.settings.mode === 'vertical' && slider.settings.slideMargin > 0) { slider.children.css('marginBottom', slider.settings.slideMargin); }
244      // if "fade" mode, add positioning and z-index CSS
245      if (slider.settings.mode === 'fade') {
246        slider.children.css({
247          position: 'absolute',
248          zIndex: 0,
249          display: 'none',
250		 'background-position':slider.settings.bgPos,
251		 'background-size':slider.settings.bgSize,
252		 'background-repeat':'no-repeat'
253        });
254        // prepare the z-index on the showing element
255        slider.children.eq(slider.settings.startSlide).css({zIndex: slider.settings.slideZIndex, display: 'block', position: 'absolute'});
256      }
257      // create an element to contain all slider controls (pager, start / stop, etc)
258      slider.controls.el = $('<div class="bx-controls" />');
259      // if captions are requested, add them

270
271	  }
272      // only check for control addition if not in "ticker" mode
273      if (!slider.settings.ticker) {
274        // if controls are requested, add them
275        if (slider.settings.controls) { appendControls(); }
276        // if auto is true, and auto controls are requested, add them
277        if (slider.settings.auto && slider.settings.autoControls) { appendControlsAuto(); }
278        // if pager is requested, add it
279        if (slider.settings.pager) { appendPager(); }
280        // if any control option is requested, add the controls wrapper
281        if (slider.settings.controls || slider.settings.autoControls || slider.settings.pager) { slider.viewport.after(slider.controls.el); }
282      // if ticker mode, do not allow a pager
283      } else {
284        slider.settings.pager = false;
285      }
286	  if (preloadSelector === null) {
287        start();
288      } else {
289        loadElements(preloadSelector, start);
290      }
291    };
292
293    var loadElements = function(selector, callback) {
294      var total = selector.find('img:not([src=""]), iframe').length,
295      count = 0;
296      if (total === 0) {
297        callback();
298        return;
299      }
300      selector.find('img:not([src=""]), iframe').each(function() {
301        $(this).one('load error', function() {
302          if (++count === total) { callback(); }
303        }).each(function() {
304          if (this.complete || this.src == '') { $(this).trigger('load'); }
305        });
306      });
307    };
308
309    /**
310     * Start the slider
311     */
312    var start = function() {
313      // if infinite loop, prepare additional slides
314      if (slider.settings.infiniteLoop && slider.settings.mode !== 'fade' && !slider.settings.ticker) {
315        var slice    = slider.settings.mode === 'vertical' ? slider.settings.minSlides : slider.settings.maxSlides,
316        sliceAppend  = slider.children.slice(0, slice).clone(true).addClass('bx-clone'),
317        slicePrepend = slider.children.slice(-slice).clone(true).addClass('bx-clone');
318        if (slider.settings.ariaHidden) {
319          sliceAppend.attr('aria-hidden', true);
320          slicePrepend.attr('aria-hidden', true);
321        }
322        el.append(sliceAppend).prepend(slicePrepend);
323      }
324      // remove the loading DOM element
325      slider.loader.remove();
326      // set the left / top position of "el"
327      setSlidePosition();
328      // if "vertical" mode, always use adaptiveHeight to prevent odd behavior
329      if (slider.settings.mode === 'vertical') { slider.settings.adaptiveHeight = true; }
330      // set the viewport height
331      slider.viewport.height(getViewportHeight());
332      // make sure everything is positioned just right (same as a window resize)
333      el.redrawSlider();
334      // onSliderLoad callback
335      slider.settings.onSliderLoad.call(el, slider.active.index);
336      // slider has been fully initialized
337      slider.initialized = true;
338      // add the resize call to the window
339      if (slider.settings.responsive) { $(window).on('resize', resizeWindow); }
340      // if auto is true and has more than 1 page, start the show
341      if (slider.settings.auto && slider.settings.autoStart && (getPagerQty() > 1 || slider.settings.autoSlideForOnePage)) { initAuto(); }
342      // if ticker is true, start the ticker
343      if (slider.settings.ticker) { initTicker(); }
344      // if pager is requested, make the appropriate pager link active
345      if (slider.settings.pager) { updatePagerActive(slider.settings.startSlide); }
346      // check for any updates to the controls (like hideControlOnEnd updates)
347      if (slider.settings.controls) { updateDirectionControls(); }
348      // if touchEnabled is true, setup the touch events
349      if (slider.settings.touchEnabled && !slider.settings.ticker) { initTouch(); }
350      // if keyboardEnabled is true, setup the keyboard events
351      if (slider.settings.keyboardEnabled && !slider.settings.ticker) {
352        $(document).keydown(keyPress);
353      }
354    };
355
356    /**
357     * Returns the calculated height of the viewport, used to determine either adaptiveHeight or the maxHeight value
358     */
359    var getViewportHeight = function() {
360      var height = 0;
361      // first determine which children (slides) should be used in our height calculation
362      var children = $();
363      // if mode is not "vertical" and adaptiveHeight is false, include all children
364      if (slider.settings.mode !== 'vertical' && !slider.settings.adaptiveHeight) {
365        children = slider.children;
366      } else {
367        // if not carousel, return the single active child
368        if (!slider.carousel) {
369          children = slider.children.eq(slider.active.index);
370        // if carousel, return a slice of children
371        } else {
372          // get the individual slide index
373          var currentIndex = slider.settings.moveSlides === 1 ? slider.active.index : slider.active.index * getMoveBy();
374          // add the current slide to the children
375          children = slider.children.eq(currentIndex);
376          // cycle through the remaining "showing" slides
377          for (i = 1; i <= slider.settings.maxSlides - 1; i++) {
378            // if looped back to the start
379            if (currentIndex + i >= slider.children.length) {
380              children = children.add(slider.children.eq(i - 1));
381            } else {
382              children = children.add(slider.children.eq(currentIndex + i));
383            }
384          }
385        }
386      }
387      // if "vertical" mode, calculate the sum of the heights of the children
388      if (slider.settings.mode === 'vertical') {
389        children.each(function(index) {
390          height += $(this).outerHeight();
391        });
392        // add user-supplied margins
393        if (slider.settings.slideMargin > 0) {
394          height += slider.settings.slideMargin * (slider.settings.minSlides - 1);
395        }
396      // if not "vertical" mode, calculate the max height of the children
397      } else {
398        height = Math.max.apply(Math, children.map(function() {
399          return $(this).outerHeight(false);
400        }).get());
401      }
402
403      if (slider.viewport.css('box-sizing') === 'border-box') {
404        height += parseFloat(slider.viewport.css('padding-top')) + parseFloat(slider.viewport.css('padding-bottom')) +
405              parseFloat(slider.viewport.css('border-top-width')) + parseFloat(slider.viewport.css('border-bottom-width'));
406      } else if (slider.viewport.css('box-sizing') === 'padding-box') {
407        height += parseFloat(slider.viewport.css('padding-top')) + parseFloat(slider.viewport.css('padding-bottom'));
408      }
409
410      return height;
411    };
412
413    /**
414     * Returns the calculated width to be used for the outer wrapper / viewport
415     */
416    var getViewportMaxWidth = function() {
417      var width = '100%';
418      if (slider.settings.slideWidth > 0) {
419        if (slider.settings.mode === 'horizontal') {
420          width = (slider.settings.maxSlides * slider.settings.slideWidth) + ((slider.settings.maxSlides - 1) * slider.settings.slideMargin);
421        } else {
422          width = slider.settings.slideWidth;
423        }
424      }
425      return width;
426    };
427
428    /**
429     * Returns the calculated width to be applied to each slide
430     */
431    var getSlideWidth = function() {
432      var newElWidth = slider.settings.slideWidth, // start with any user-supplied slide width
433      wrapWidth      = slider.viewport.width();    // get the current viewport width
434      // if slide width was not supplied, or is larger than the viewport use the viewport width
435      if (slider.settings.slideWidth === 0 ||
436        (slider.settings.slideWidth > wrapWidth && !slider.carousel) ||
437        slider.settings.mode === 'vertical') {
438        newElWidth = wrapWidth;
439      // if carousel, use the thresholds to determine the width
440      } else if (slider.settings.maxSlides > 1 && slider.settings.mode === 'horizontal') {
441        if (wrapWidth > slider.maxThreshold) {
442          return newElWidth;
443        } else if (wrapWidth < slider.minThreshold) {
444          newElWidth = (wrapWidth - (slider.settings.slideMargin * (slider.settings.minSlides - 1))) / slider.settings.minSlides;
445        } else if (slider.settings.shrinkItems) {
446          newElWidth = Math.floor((wrapWidth + slider.settings.slideMargin) / (Math.ceil((wrapWidth + slider.settings.slideMargin) / (newElWidth + slider.settings.slideMargin))) - slider.settings.slideMargin);
447        }
448      }
449      return newElWidth;
450    };
451
452    /**
453     * Returns the number of slides currently visible in the viewport (includes partially visible slides)
454     */
455    var getNumberSlidesShowing = function() {
456      var slidesShowing = 1,
457      childWidth = null;
458      if (slider.settings.mode === 'horizontal' && slider.settings.slideWidth > 0) {
459        // if viewport is smaller than minThreshold, return minSlides
460        if (slider.viewport.width() < slider.minThreshold) {
461          slidesShowing = slider.settings.minSlides;
462        // if viewport is larger than maxThreshold, return maxSlides
463        } else if (slider.viewport.width() > slider.maxThreshold) {
464          slidesShowing = slider.settings.maxSlides;
465        // if viewport is between min / max thresholds, divide viewport width by first child width
466        } else {
467          childWidth = slider.children.first().width() + slider.settings.slideMargin;
468          slidesShowing = Math.floor((slider.viewport.width() +
469            slider.settings.slideMargin) / childWidth) || 1;
470        }
471      // if "vertical" mode, slides showing will always be minSlides
472      } else if (slider.settings.mode === 'vertical') {
473        slidesShowing = slider.settings.minSlides;
474      }
475      return slidesShowing;
476    };
477
478    /**
479     * Returns the number of pages (one full viewport of slides is one "page")
480     */
481    var getPagerQty = function() {
482      var pagerQty = 0,
483      breakPoint = 0,
484      counter = 0;
485      // if moveSlides is specified by the user
486      if (slider.settings.moveSlides > 0) {
487        if (slider.settings.infiniteLoop) {
488          pagerQty = Math.ceil(slider.children.length / getMoveBy());
489        } else {
490          // when breakpoint goes above children length, counter is the number of pages
491          while (breakPoint < slider.children.length) {
492            ++pagerQty;
493            breakPoint = counter + getNumberSlidesShowing();
494            counter += slider.settings.moveSlides <= getNumberSlidesShowing() ? slider.settings.moveSlides : getNumberSlidesShowing();
495          }
496		  return counter;
497        }
498      // if moveSlides is 0 (auto) divide children length by sides showing, then round up
499      } else {
500        pagerQty = Math.ceil(slider.children.length / getNumberSlidesShowing());
501      }
502      return pagerQty;
503    };
504
505    /**
506     * Returns the number of individual slides by which to shift the slider
507     */
508    var getMoveBy = function() {
509      // if moveSlides was set by the user and moveSlides is less than number of slides showing
510      if (slider.settings.moveSlides > 0 && slider.settings.moveSlides <= getNumberSlidesShowing()) {
511        return slider.settings.moveSlides;
512      }
513      // if moveSlides is 0 (auto)
514      return getNumberSlidesShowing();
515    };
516
517    /**
518     * Sets the slider's (el) left or top position
519     */
520    var setSlidePosition = function() {
521      var position, lastChild, lastShowingIndex;
522      // if last slide, not infinite loop, and number of children is larger than specified maxSlides
523      if (slider.children.length > slider.settings.maxSlides && slider.active.last && !slider.settings.infiniteLoop) {
524        if (slider.settings.mode === 'horizontal') {
525          // get the last child's position
526          lastChild = slider.children.last();
527          position = lastChild.position();
528          // set the left position
529          setPositionProperty(-(position.left - (slider.viewport.width() - lastChild.outerWidth())), 'reset', 0);
530        } else if (slider.settings.mode === 'vertical') {
531          // get the last showing index's position
532          lastShowingIndex = slider.children.length - slider.settings.minSlides;
533          position = slider.children.eq(lastShowingIndex).position();
534          // set the top position
535          setPositionProperty(-position.top, 'reset', 0);
536        }
537      // if not last slide
538      } else {
539        // get the position of the first showing slide
540        position = slider.children.eq(slider.active.index * getMoveBy()).position();
541        // check for last slide
542        if (slider.active.index === getPagerQty() - 1) { slider.active.last = true; }
543        // set the respective position
544        if (position !== undefined) {
545          if (slider.settings.mode === 'horizontal') { setPositionProperty(-position.left, 'reset', 0); }
546          else if (slider.settings.mode === 'vertical') { setPositionProperty(-position.top, 'reset', 0); }
547        }
548      }
549    };
550
551    /**
552     * Sets the el's animating property position (which in turn will sometimes animate el).
553     * If using CSS, sets the transform property. If not using CSS, sets the top / left property.
554     *
555     * @param value (int)
556     *  - the animating property's value
557     *
558     * @param type (string) 'slide', 'reset', 'ticker'
559     *  - the type of instance for which the function is being
560     *
561     * @param duration (int)
562     *  - the amount of time (in ms) the transition should occupy
563     *
564     * @param params (array) optional
565     *  - an optional parameter containing any variables that need to be passed in
566     */
567    var setPositionProperty = function(value, type, duration, params) {
568      var animateObj, propValue;
569      // use CSS transform
570      if (slider.usingCSS) {
571        // determine the translate3d value
572        propValue = slider.settings.mode === 'vertical' ? 'translate3d(0, ' + value + 'px, 0)' : 'translate3d(' + value + 'px, 0, 0)';
573        // add the CSS transition-duration
574        el.css('-' + slider.cssPrefix + '-transition-duration', duration / 1000 + 's');
575        if (type === 'slide') {
576          // set the property value
577          el.css(slider.animProp, propValue);
578          if (duration !== 0) {
579            // add a callback method - executes when CSS transition completes
580            el.on('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd', function(e) {
581              //make sure it's the correct one
582              if (!$(e.target).is(el)) { return; }
583              // remove the callback
584              el.off('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd');
585              updateAfterSlideTransition();
586            });
587          } else { //duration = 0
588            updateAfterSlideTransition();
589          }
590        } else if (type === 'reset') {
591          el.css(slider.animProp, propValue);
592        } else if (type === 'ticker') {
593          // make the transition use 'linear'
594          el.css('-' + slider.cssPrefix + '-transition-timing-function', 'linear');
595          el.css(slider.animProp, propValue);
596          if (duration !== 0) {
597            el.on('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd', function(e) {
598              //make sure it's the correct one
599              if (!$(e.target).is(el)) { return; }
600              // remove the callback
601              el.off('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd');
602              // reset the position
603              setPositionProperty(params.resetValue, 'reset', 0);
604              // start the loop again
605              tickerLoop();
606            });
607          } else { //duration = 0
608            setPositionProperty(params.resetValue, 'reset', 0);
609            tickerLoop();
610          }
611        }
612      // use JS animate
613      } else {
614        animateObj = {};
615        animateObj[slider.animProp] = value;
616        if (type === 'slide') {
617          el.animate(animateObj, duration, slider.settings.easing, function() {
618            updateAfterSlideTransition();
619          });
620        } else if (type === 'reset') {
621          el.css(slider.animProp, value);
622        } else if (type === 'ticker') {
623          el.animate(animateObj, duration, 'linear', function() {
624            setPositionProperty(params.resetValue, 'reset', 0);
625            // run the recursive loop after animation
626            tickerLoop();
627          });
628        }
629      }
630    };
631
632    /**
633     * Populates the pager with proper amount of pages
634     */
635    var populatePager = function() {
636      var pagerHtml = '',
637      linkContent = '',
638      pagerQty = getPagerQty();
639      // loop through each pager item
640      for (var i = 0; i < pagerQty; i++) {
641        linkContent = '';
642        // if a buildPager function is supplied, use it to get pager link value, else use index + 1
643        if (slider.settings.buildPager && $.isFunction(slider.settings.buildPager) || slider.settings.pagerCustom) {
644          linkContent = slider.settings.buildPager(i);
645          slider.pagerEl.addClass('bx-custom-pager');
646        } else {
647          linkContent = i + 1;
648          slider.pagerEl.addClass('bx-default-pager');
649        }
650        // var linkContent = slider.settings.buildPager && $.isFunction(slider.settings.buildPager) ? slider.settings.buildPager(i) : i + 1;
651        // add the markup to the string
652        pagerHtml += '<div class="bx-pager-item"><a href="" data-slide-index="' + i + '" class="bx-pager-link">' + linkContent + '</a></div>';
653      }
654      // populate the pager element with pager links
655      slider.pagerEl.html(pagerHtml);
656    };
657
658    /**
659     * Appends the pager to the controls element
660     */
661    var appendPager = function() {
662      if (!slider.settings.pagerCustom) {
663        // create the pager DOM element
664        slider.pagerEl = $('<div class="bx-pager" />');
665        // if a pager selector was supplied, populate it with the pager
666        if (slider.settings.pagerSelector) {
667          $(slider.settings.pagerSelector).html(slider.pagerEl);
668        // if no pager selector was supplied, add it after the wrapper
669        } else {
670          slider.controls.el.addClass('bx-has-pager').append(slider.pagerEl);
671        }
672        // populate the pager
673        populatePager();
674      } else {
675        slider.pagerEl = $(slider.settings.pagerCustom);
676      }
677      // assign the pager click binding
678      slider.pagerEl.on('click touchend', 'a', clickPagerBind);
679    };
680
681    /**
682     * Appends prev / next controls to the controls element
683     */
684    var appendControls = function() {
685      slider.controls.next = $('<a class="bx-next" href="">' + slider.settings.nextText + '</a>');
686      slider.controls.prev = $('<a class="bx-prev" href="">' + slider.settings.prevText + '</a>');
687      // add click actions to the controls
688      slider.controls.next.on('click touchend', clickNextBind);
689      slider.controls.prev.on('click touchend', clickPrevBind);
690      // if nextSelector was supplied, populate it
691      if (slider.settings.nextSelector) {
692        $(slider.settings.nextSelector).append(slider.controls.next);
693      }
694      // if prevSelector was supplied, populate it
695      if (slider.settings.prevSelector) {
696        $(slider.settings.prevSelector).append(slider.controls.prev);
697      }
698      // if no custom selectors were supplied
699      if (!slider.settings.nextSelector && !slider.settings.prevSelector) {
700        // add the controls to the DOM
701        slider.controls.directionEl = $('<div class="bx-controls-direction" />');
702        // add the control elements to the directionEl
703        slider.controls.directionEl.append(slider.controls.prev).append(slider.controls.next);
704        // slider.viewport.append(slider.controls.directionEl);
705        slider.controls.el.addClass('bx-has-controls-direction').append(slider.controls.directionEl);
706      }
707    };
708
709    /**
710     * Appends start / stop auto controls to the controls element
711     */
712    var appendControlsAuto = function() {
713      slider.controls.start = $('<div class="bx-controls-auto-item"><a class="bx-start" href="">' + slider.settings.startText + '</a></div>');
714      slider.controls.stop = $('<div class="bx-controls-auto-item"><a class="bx-stop" href="">' + slider.settings.stopText + '</a></div>');
715      // add the controls to the DOM
716      slider.controls.autoEl = $('<div class="bx-controls-auto" />');
717      // on click actions to the controls
718      slider.controls.autoEl.on('click', '.bx-start', clickStartBind);
719      slider.controls.autoEl.on('click', '.bx-stop', clickStopBind);
720      // if autoControlsCombine, insert only the "start" control
721      if (slider.settings.autoControlsCombine) {
722        slider.controls.autoEl.append(slider.controls.start);
723      // if autoControlsCombine is false, insert both controls
724      } else {
725        slider.controls.autoEl.append(slider.controls.start).append(slider.controls.stop);
726      }
727      // if auto controls selector was supplied, populate it with the controls
728      if (slider.settings.autoControlsSelector) {
729        $(slider.settings.autoControlsSelector).html(slider.controls.autoEl);
730      // if auto controls selector was not supplied, add it after the wrapper
731      } else {
732        slider.controls.el.addClass('bx-has-controls-auto').append(slider.controls.autoEl);
733      }
734      // update the auto controls
735      updateAutoControls(slider.settings.autoStart ? 'stop' : 'start');
736    };
737
738    /**
739     * Appends image captions to the DOM
740     */
741    var appendCaptions = function() {
742      // cycle through each child
743      slider.children.each(function(index) {
744        // get the image title attribute
745        var title = $(this).find('img:first').attr('title');
746        // append the caption
747        if (title !== undefined && ('' + title).length) {
748          $(this).append('<div class="bx-caption"><span>' + title + '</span></div>');
749        }
750      });
751    };
752
753    /**
754     * Click next binding
755     *
756     * @param e (event)
757     *  - DOM event object
758     */
759    var clickNextBind = function(e) {
760      e.preventDefault();
761      if (slider.controls.el.hasClass('disabled')) { return; }
762      // if auto show is running, stop it
763      if (slider.settings.auto && slider.settings.stopAutoOnClick) { el.stopAuto(); }
764      el.goToNextSlide();
765    };
766
767    /**
768     * Click prev binding
769     *
770     * @param e (event)
771     *  - DOM event object
772     */
773    var clickPrevBind = function(e) {
774      e.preventDefault();
775      if (slider.controls.el.hasClass('disabled')) { return; }
776      // if auto show is running, stop it
777      if (slider.settings.auto && slider.settings.stopAutoOnClick) { el.stopAuto(); }
778      el.goToPrevSlide();
779    };
780
781    /**
782     * Click start binding
783     *
784     * @param e (event)
785     *  - DOM event object
786     */
787    var clickStartBind = function(e) {
788      el.startAuto();
789      e.preventDefault();
790    };
791
792    /**
793     * Click stop binding
794     *
795     * @param e (event)
796     *  - DOM event object
797     */
798    var clickStopBind = function(e) {
799      el.stopAuto();
800      e.preventDefault();
801    };
802
803    /**
804     * Click pager binding
805     *
806     * @param e (event)
807     *  - DOM event object
808     */
809    var clickPagerBind = function(e) {
810      var pagerLink, pagerIndex;
811      e.preventDefault();
812      if (slider.controls.el.hasClass('disabled')) {
813        return;
814      }
815      // if auto show is running, stop it
816      if (slider.settings.auto  && slider.settings.stopAutoOnClick) { el.stopAuto(); }
817      pagerLink = $(e.currentTarget);
818      if (pagerLink.attr('data-slide-index') !== undefined) {
819        pagerIndex = parseInt(pagerLink.attr('data-slide-index'));
820        // if clicked pager link is not active, continue with the goToSlide call
821        if (pagerIndex !== slider.active.index) { el.goToSlide(pagerIndex); }
822      }
823    };
824
825    /**
826     * Updates the pager links with an active class
827     *
828     * @param slideIndex (int)
829     *  - index of slide to make active
830     */
831    var updatePagerActive = function(slideIndex) {
832      // if "short" pager type
833      var len = slider.children.length; // nb of children
834      if (slider.settings.pagerType === 'short') {
835        if (slider.settings.maxSlides > 1) {
836          len = Math.ceil(slider.children.length / slider.settings.maxSlides);
837        }
838        slider.pagerEl.html((slideIndex + 1) + slider.settings.pagerShortSeparator + len);
839        return;
840      }
841      // remove all pager active classes
842      slider.pagerEl.find('a').removeClass('active');
843      // apply the active class for all pagers
844      slider.pagerEl.each(function(i, el) { $(el).find('a').eq(slideIndex).addClass('active'); });
845    };
846
847    /**
848     * Performs needed actions after a slide transition
849     */
850    var updateAfterSlideTransition = function() {
851      // if infinite loop is true
852      if (slider.settings.infiniteLoop) {
853        var position = '';
854        // first slide
855        if (slider.active.index === 0) {
856          // set the new position
857          position = slider.children.eq(0).position();
858        // carousel, last slide
859        } else if (slider.active.index === getPagerQty() - 1 && slider.carousel) {
860          position = slider.children.eq((getPagerQty() - 1) * getMoveBy()).position();
861        // last slide
862        } else if (slider.active.index === slider.children.length - 1) {
863          position = slider.children.eq(slider.children.length - 1).position();
864        }
865        if (position) {
866          if (slider.settings.mode === 'horizontal') { setPositionProperty(-position.left, 'reset', 0); }
867          else if (slider.settings.mode === 'vertical') { setPositionProperty(-position.top, 'reset', 0); }
868        }
869      }
870      // declare that the transition is complete
871      slider.working = false;
872      // onSlideAfter callback
873      slider.settings.onSlideAfter.call(el, slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index);
874    };
875
876    /**
877     * Updates the auto controls state (either active, or combined switch)
878     *
879     * @param state (string) "start", "stop"
880     *  - the new state of the auto show
881     */
882    var updateAutoControls = function(state) {
883      // if autoControlsCombine is true, replace the current control with the new state
884      if (slider.settings.autoControlsCombine) {
885        slider.controls.autoEl.html(slider.controls[state]);
886      // if autoControlsCombine is false, apply the "active" class to the appropriate control
887      } else {
888        slider.controls.autoEl.find('a').removeClass('active');
889        slider.controls.autoEl.find('a:not(.bx-' + state + ')').addClass('active');
890      }
891    };
892
893    /**
894     * Updates the direction controls (checks if either should be hidden)
895     */
896    var updateDirectionControls = function() {
897      if (getPagerQty() === 1) {
898        slider.controls.prev.addClass('disabled');
899        slider.controls.next.addClass('disabled');
900      } else if (!slider.settings.infiniteLoop && slider.settings.hideControlOnEnd) {
901        // if first slide
902        if (slider.active.index === 0) {
903          slider.controls.prev.addClass('disabled');
904          slider.controls.next.removeClass('disabled');
905        // if last slide
906        } else if (slider.active.index === getPagerQty() - 1) {
907          slider.controls.next.addClass('disabled');
908          slider.controls.prev.removeClass('disabled');
909        // if any slide in the middle
910        } else {
911          slider.controls.prev.removeClass('disabled');
912          slider.controls.next.removeClass('disabled');
913        }
914      }
915    };
916	/* auto start and stop functions */
917	var windowFocusHandler = function() { el.startAuto(); };
918	var windowBlurHandler = function() { el.stopAuto(); };
919    /**
920     * Initializes the auto process
921     */
922    var initAuto = function() {
923      // if autoDelay was supplied, launch the auto show using a setTimeout() call
924      if (slider.settings.autoDelay > 0) {
925        setTimeout(el.startAuto, slider.settings.autoDelay);
926      // if autoDelay was not supplied, start the auto show normally
927      } else {
928        el.startAuto();
929
930        //add focus and blur events to ensure its running if timeout gets paused
931        $(window).focus(windowFocusHandler).blur(windowBlurHandler);
932      }
933      // if autoHover is requested
934      if (slider.settings.autoHover) {
935        // on el hover
936        el.hover(function() {
937          // if the auto show is currently playing (has an active interval)
938          if (slider.interval) {
939            // stop the auto show and pass true argument which will prevent control update
940            el.stopAuto(true);
941            // create a new autoPaused value which will be used by the relative "mouseout" event
942            slider.autoPaused = true;
943          }
944        }, function() {
945          // if the autoPaused value was created be the prior "mouseover" event
946          if (slider.autoPaused) {
947            // start the auto show and pass true argument which will prevent control update
948            el.startAuto(true);
949            // reset the autoPaused value
950            slider.autoPaused = null;
951          }
952        });
953      }
954    };
955
956    /**
957     * Initializes the ticker process
958     */
959    var initTicker = function() {
960      var startPosition = 0,
961      position, transform, value, idx, ratio, property, newSpeed, totalDimens;
962      // if autoDirection is "next", append a clone of the entire slider
963      if (slider.settings.autoDirection === 'next') {
964        el.append(slider.children.clone().addClass('bx-clone'));
965      // if autoDirection is "prev", prepend a clone of the entire slider, and set the left position
966      } else {
967        el.prepend(slider.children.clone().addClass('bx-clone'));
968        position = slider.children.first().position();
969        startPosition = slider.settings.mode === 'horizontal' ? -position.left : -position.top;
970      }
971      setPositionProperty(startPosition, 'reset', 0);
972      // do not allow controls in ticker mode
973      slider.settings.pager = false;
974      slider.settings.controls = false;
975      slider.settings.autoControls = false;
976      // if autoHover is requested
977      if (slider.settings.tickerHover) {
978        if (slider.usingCSS) {
979          idx = slider.settings.mode === 'horizontal' ? 4 : 5;
980          slider.viewport.hover(function() {
981            transform = el.css('-' + slider.cssPrefix + '-transform');
982            value = parseFloat(transform.split(',')[idx]);
983            setPositionProperty(value, 'reset', 0);
984          }, function() {
985            totalDimens = 0;
986            slider.children.each(function(index) {
987              totalDimens += slider.settings.mode === 'horizontal' ? $(this).outerWidth(true) : $(this).outerHeight(true);
988            });
989            // calculate the speed ratio (used to determine the new speed to finish the paused animation)
990            ratio = slider.settings.speed / totalDimens;
991            // determine which property to use
992            property = slider.settings.mode === 'horizontal' ? 'left' : 'top';
993            // calculate the new speed
994            newSpeed = ratio * (totalDimens - (Math.abs(parseInt(value))));
995            tickerLoop(newSpeed);
996          });
997        } else {
998          // on el hover
999          slider.viewport.hover(function() {
1000            el.stop();
1001          }, function() {
1002            // calculate the total width of children (used to calculate the speed ratio)
1003            totalDimens = 0;
1004            slider.children.each(function(index) {
1005              totalDimens += slider.settings.mode === 'horizontal' ? $(this).outerWidth(true) : $(this).outerHeight(true);
1006            });
1007            // calculate the speed ratio (used to determine the new speed to finish the paused animation)
1008            ratio = slider.settings.speed / totalDimens;
1009            // determine which property to use
1010            property = slider.settings.mode === 'horizontal' ? 'left' : 'top';
1011            // calculate the new speed
1012            newSpeed = ratio * (totalDimens - (Math.abs(parseInt(el.css(property)))));
1013            tickerLoop(newSpeed);
1014          });
1015        }
1016      }
1017      // start the ticker loop
1018      tickerLoop();
1019    };
1020
1021    /**
1022     * Runs a continuous loop, news ticker-style
1023     */
1024    var tickerLoop = function(resumeSpeed) {
1025      var speed = resumeSpeed ? resumeSpeed : slider.settings.speed,
1026      position = {left: 0, top: 0},
1027      reset = {left: 0, top: 0},
1028      animateProperty, resetValue, params;
1029
1030      // if "next" animate left position to last child, then reset left to 0
1031      if (slider.settings.autoDirection === 'next') {
1032        position = el.find('.bx-clone').first().position();
1033      // if "prev" animate left position to 0, then reset left to first non-clone child
1034      } else {
1035        reset = slider.children.first().position();
1036      }
1037      animateProperty = slider.settings.mode === 'horizontal' ? -position.left : -position.top;
1038      resetValue = slider.settings.mode === 'horizontal' ? -reset.left : -reset.top;
1039      params = {resetValue: resetValue};
1040      setPositionProperty(animateProperty, 'ticker', speed, params);
1041    };
1042
1043    /**
1044     * Check if el is on screen
1045     */
1046    var isOnScreen = function(el) {
1047      var win = $(window),
1048      viewport = {
1049        top: win.scrollTop(),
1050        left: win.scrollLeft()
1051      },
1052      bounds = el.offset();
1053
1054      viewport.right = viewport.left + win.width();
1055      viewport.bottom = viewport.top + win.height();
1056      bounds.right = bounds.left + el.outerWidth();
1057      bounds.bottom = bounds.top + el.outerHeight();
1058
1059      return (!(viewport.right < bounds.left || viewport.left > bounds.right || viewport.bottom < bounds.top || viewport.top > bounds.bottom));
1060    };
1061
1062    /**
1063     * Initializes keyboard events
1064     */
1065    var keyPress = function(e) {
1066      var activeElementTag = document.activeElement.tagName.toLowerCase(),
1067      tagFilters = 'input|textarea',
1068      p = new RegExp(activeElementTag,['i']),
1069      result = p.exec(tagFilters);
1070
1071      if (result == null && isOnScreen(el)) {
1072        if (e.keyCode === 39) {
1073          clickNextBind(e);
1074          return false;
1075        } else if (e.keyCode === 37) {
1076          clickPrevBind(e);
1077          return false;
1078        }
1079      }
1080    };
1081
1082    /**
1083     * Initializes touch events
1084     */
1085    var initTouch = function() {
1086      // initialize object to contain all touch values
1087      slider.touch = {
1088        start: {x: 0, y: 0},
1089        end: {x: 0, y: 0}
1090      };
1091      slider.viewport.on('touchstart MSPointerDown pointerdown', onTouchStart);
1092
1093      //for browsers that have implemented pointer events and fire a click after
1094      //every pointerup regardless of whether pointerup is on same screen location as pointerdown or not
1095      slider.viewport.on('click', '.bxslider a', function(e) {
1096        if (slider.viewport.hasClass('click-disabled')) {
1097          e.preventDefault();
1098          slider.viewport.removeClass('click-disabled');
1099        }
1100      });
1101    };
1102
1103    /**
1104     * Event handler for "touchstart"
1105     *
1106     * @param e (event)
1107     *  - DOM event object
1108     */
1109    var onTouchStart = function(e) {
1110      // 

1110watch only for left mouse, touch contact and pen contact
1111      // touchstart event object doesn`t have button property
1112      if (e.type !== 'touchstart' && e.button !== 0) {
1113        return;
1114      }
1115      // e.preventDefault();
1116      //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
1117      slider.controls.el.addClass('disabled');
1118
1119      if (slider.working) {
1120        slider.controls.el.removeClass('disabled');
1121      } else {
1122        // record the original position when touch starts
1123        slider.touch.originalPos = el.position();
1124        var orig = e.originalEvent,
1125        touchPoints = (typeof orig.changedTouches !== 'undefined') ? orig.changedTouches : [orig];
1126		var chromePointerEvents = typeof PointerEvent === 'function'; 
1127		if (chromePointerEvents) { 
1128			if (orig.pointerId === undefined) { 
1129				return;
1130			} 
1131		}
1132        // record the starting touch x, y coordinates
1133        slider.touch.start.x = touchPoints[0].pageX;
1134        slider.touch.start.y = touchPoints[0].pageY;
1135
1136        if (slider.viewport.get(0).setPointerCapture) {
1137          slider.pointerId = orig.pointerId;
1138          slider.viewport.get(0).setPointerCapture(slider.pointerId);
1139        }
1140        // store original event data for click fixation
1141        slider.originalClickTarget = orig.originalTarget || orig.target;
1142        slider.originalClickButton = orig.button;
1143        slider.originalClickButtons = orig.buttons;
1144        slider.originalEventType = orig.type;
1145        // at this moment we don`t know what it is click or swipe
1146        slider.hasMove = false;
1147        // on a "touchmove" event to the viewport
1148        slider.viewport.on('touchmove MSPointerMove pointermove', onTouchMove);
1149        // on a "touchend" event to the viewport
1150        slider.viewport.on('touchend MSPointerUp pointerup', onTouchEnd);
1151        slider.viewport.on('MSPointerCancel pointercancel', onPointerCancel);
1152      }
1153    };
1154
1155    /**
1156     * Cancel Pointer for Windows Phone
1157     *
1158     * @param e (event)
1159     *  - DOM event object
1160     */
1161    var onPointerCancel = function(e) {
1162      e.preventDefault();
1163      /* onPointerCancel handler is needed to deal with situations when a touchend
1164      doesn't fire after a touchstart (this happens on windows phones only) */
1165      setPositionProperty(slider.touch.originalPos.left, 'reset', 0);
1166
1167      //remove handlers
1168      slider.controls.el.removeClass('disabled');
1169      slider.viewport.off('MSPointerCancel pointercancel', onPointerCancel);
1170      slider.viewport.off('touchmove MSPointerMove pointermove', onTouchMove);
1171      slider.viewport.off('touchend MSPointerUp pointerup', onTouchEnd);
1172      if (slider.viewport.get(0).releasePointerCapture) {
1173        slider.viewport.get(0).releasePointerCapture(slider.pointerId);
1174      }
1175    };
1176
1177    /**
1178     * Event handler for "touchmove"
1179     *
1180     * @param e (event)
1181     *  - DOM event object
1182     */
1183    var onTouchMove = function(e) {
1184      var orig = e.originalEvent,
1185      touchPoints = (typeof orig.changedTouches !== 'undefined') ? orig.changedTouches : [orig],
1186      // if scrolling on y axis, do not prevent default
1187      xMovement = Math.abs(touchPoints[0].pageX - slider.touch.start.x),
1188      yMovement = Math.abs(touchPoints[0].pageY - slider.touch.start.y),
1189      value = 0,
1190      change = 0;
1191      // this is swipe
1192      slider.hasMove = true;
1193
1194      // x axis swipe
1195      if ((xMovement * 3) > yMovement && slider.settings.preventDefaultSwipeX) {
1196        e.preventDefault();
1197      // y axis swipe
1198      } else if ((yMovement * 3) > xMovement && slider.settings.preventDefaultSwipeY) {
1199        e.preventDefault();
1200      }
1201      if (e.type !== 'touchmove') {
1202        e.preventDefault();
1203      }
1204
1205      if (slider.settings.mode !== 'fade' && slider.settings.oneToOneTouch) {
1206        // if horizontal, drag along x axis
1207        if (slider.settings.mode === 'horizontal') {
1208          change = touchPoints[0].pageX - slider.touch.start.x;
1209          value = slider.touch.originalPos.left + change;
1210        // if vertical, drag along y axis
1211        } else {
1212          change = touchPoints[0].pageY - slider.touch.start.y;
1213          value = slider.touch.originalPos.top + change;
1214        }
1215        setPositionProperty(value, 'reset', 0);
1216      }
1217    };
1218
1219    /**
1220     * Event handler for "touchend"
1221     *
1222     * @param e (event)
1223     *  - DOM event object
1224     */
1225    var onTouchEnd = function(e) {
1226	  var orig = e.originalEvent,
1227      touchPoints = (typeof orig.changedTouches !== 'undefined') ? orig.changedTouches : [orig],
1228      // if scrolling on y axis, do not prevent default
1229      xMovement = Math.abs(touchPoints[0].pageX - slider.touch.start.x),
1230      yMovement = Math.abs(touchPoints[0].pageY - slider.touch.start.y),
1231      value = 0,
1232      change = 0;
1233      // this is swipe
1234      slider.hasMove = true;

1235
1236      e.preventDefault();
1237      slider.viewport.off('touchmove MSPointerMove pointermove', onTouchMove);
1238      //enable slider controls as soon as user stops interacing with slides
1239      slider.controls.el.removeClass('disabled');
1240      var orig    = e.originalEvent,
1241      touchPoints = (typeof orig.changedTouches !== 'undefined') ? orig.changedTouches : [orig],
1242      value       = 0,
1243      distance    = 0;
1244      // record end x, y positions
1245      slider.touch.end.x = touchPoints[0].pageX;
1246      slider.touch.end.y = touchPoints[0].pageY;
1247      // if fade mode, check if absolute x distance clears the threshold
1248      if (slider.settings.mode === 'fade') {
1249        distance = Math.abs(slider.touch.start.x - slider.touch.end.x);
1250        if (distance >= slider.settings.swipeThreshold) {
1251          if (slider.touch.start.x > slider.touch.end.x) {
1252            el.goToNextSlide();
1253          } else {
1254            el.goToPrevSlide();
1255          }
1256          el.stopAuto();
1257        }
1258      // not fade mode
1259      } else {
1260        // calculate distance and el's animate property
1261        if (slider.settings.mode === 'horizontal') {
1262          distance = slider.touch.end.x - slider.touch.start.x;
1263          value = slider.touch.originalPos.left;
1264        } else {
1265          distance = slider.touch.end.y - slider.touch.start.y;
1266          value = slider.touch.originalPos.top;
1267        }
1268        // if not infinite loop and first / last slide, do not attempt a slide transition
1269        if (!slider.settings.infiniteLoop && ((slider.active.index === 0 && distance > 0) || (slider.active.last && distance < 0))) {
1270          setPositionProperty(value, 'reset', 200);
1271        } else {
1272          // check if distance clears threshold
1273          if (Math.abs(distance) >= slider.settings.swipeThreshold) {
1274            if (distance < 0) {
1275              el.goToNextSlide();
1276            } else {
1277              el.goToPrevSlide();
1278            }
1279            el.stopAuto();
1280          } else {
1281            // el.animate(property, 200);
1282            setPositionProperty(value, 'reset', 200);
1283          }
1284        }
1285      }
1286      slider.viewport.off('touchend MSPointerUp pointerup', onTouchEnd);
1287
1288      if (slider.viewport.get(0).releasePointerCapture) {
1289        slider.viewport.get(0).releasePointerCapture(slider.pointerId);
1290      }
1291      // if slider had swipe with left mouse, touch contact and pen contact
1292      if (slider.hasMove === false && (slider.originalClickButton === 0 || slider.originalEventType === 'touchstart')) {
1293        // trigger click event (fix for Firefox59 and PointerEvent standard compatibility)
1294        $(slider.originalClickTarget).trigger({
1295          type: 'click',
1296          button: slider.originalClickButton,
1297          buttons: slider.originalClickButtons
1298        });
1299      }
1300    };
1301
1302    /**
1303     * Window resize event callback
1304     */
1305    var resizeWindow = function(e) {
1306      // don't do anything if slider isn't initialized.
1307      if (!slider.initialized) { return; }
1308      // Delay if slider working.
1309      if (slider.working) {
1310        window.setTimeout(resizeWindow, 10);
1311      } else {
1312        // get the new window dimens (again, thank you IE)
1313        var windowWidthNew = $(window).width(),
1314        windowHeightNew = $(window).height();
1315        // make sure that it is a true window resize
1316        // *we must check this because our dinosaur friend IE fires a window resize event when certain DOM elements
1317        // are resized. Can you just die already?*
1318        if (windowWidth !== windowWidthNew || windowHeight !== windowHeightNew) {
1319          // set the new window dimens
1320          windowWidth = windowWidthNew;
1321          windowHeight = windowHeightNew;
1322          // update all dynamic elements
1323          el.redrawSlider();
1324          // Call user resize handler
1325          slider.settings.onSliderResize.call(el, slider.active.index);
1326        }
1327      }
1328    };
1329
1330    /**
1331     * Adds an aria-hidden=true attribute to each element
1332     *
1333     * @param startVisibleIndex (int)
1334     *  - the first visible element's index
1335     */
1336    var applyAriaHiddenAttributes = function(startVisibleIndex) {
1337      var numberOfSlidesShowing = getNumberSlidesShowing();
1338      // only apply attributes if the setting is enabled and not in ticker mode
1339      if (slider.settings.ariaHidden && !slider.settings.ticker) {
1340        // add aria-hidden=true to all elements
1341        slider.children.attr('aria-hidden', 'true');
1342        // get the visible elements and change to aria-hidden=false
1343        slider.children.slice(startVisibleIndex, startVisibleIndex + numberOfSlidesShowing).attr('aria-hidden', 'false');
1344      }
1345    };
1346
1347    /**
1348     * Returns index according to present page range
1349     *
1350     * @param slideOndex (int)
1351     *  - the desired slide index
1352     */
1353    var setSlideIndex = function(slideIndex) {
1354      if (slideIndex < 0) {
1355        if (slider.settings.infiniteLoop) {
1356          return getPagerQty() - 1;
1357        }else {
1358          //we don't go to undefined slides
1359          return slider.active.index;
1360        }
1361      // if slideIndex is greater than children length, set active index to 0 (this happens during infinite loop)
1362      } else if (slideIndex >= getPagerQty()) {
1363        if (slider.settings.infiniteLoop) {
1364          return 0;
1365        } else {
1366          //we don't move to undefined pages
1367          return slider.active.index;
1368        }
1369      // set active index to requested slide
1370      } else {
1371        return slideIndex;
1372      }
1373    };
1374
1375    /**
1376     * ===================================================================================
1377     * = PUBLIC FUNCTIONS
1378     * ===================================================================================
1379     */
1380
1381    /**
1382     * Performs slide transition to the specified slide
1383     *
1384     * @param slideIndex (int)
1385     *  - the destination slide's index (zero-based)
1386     *
1387     * @param direction (string)
1388     *  - INTERNAL USE ONLY - the direction of travel ("prev" / "next")
1389     */
1390    el.goToSlide = function(slideIndex, direction) {
1391      // onSlideBefore, onSlideNext, onSlidePrev callbacks
1392      // Allow transition canceling based on returned value
1393      var performTransition = true,
1394      moveBy = 0,
1395      position = {left: 0, top: 0},
1396      lastChild = null,
1397      lastShowingIndex, eq, value, requestEl;
1398      // store the old index
1399      slider.oldIndex = slider.active.index;
1400      //set new index
1401      slider.active.index = setSlideIndex(slideIndex);
1402
1403      // if plugin is currently in motion, ignore request
1404      if (slider.working || slider.active.index === slider.oldIndex) { return; }
1405      // declare that plugin is in motion
1406      slider.working = true;
1407
1408      performTransition = slider.settings.onSlideBefore.call(el, slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index);
1409
1410      // If transitions canceled, reset and return
1411      if (typeof (performTransition) !== 'undefined' && !performTransition) {
1412        slider.active.index = slider.oldIndex; // restore old index
1413        slider.working = false; // is not in motion
1414        return;
1415      }
1416
1417      if (direction === 'next') {
1418        // Prevent canceling in future functions or lack there-of from negating previous commands to cancel
1419        if (!slider.settings.onSlideNext.call(el, slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index)) {
1420          performTransition = false;
1421        }
1422      } else if (direction === 'prev') {
1423        // Prevent canceling in future functions or lack there-of from negating previous commands to cancel
1424        if (!slider.settings.onSlidePrev.call(el, slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index)) {
1425          performTransition = false;
1426        }
1427      }
1428
1429      // check if last slide
1430      slider.active.last = slider.active.index >= getPagerQty() - 1;
1431      // update the pager with active class
1432      if (slider.settings.pager || slider.settings.pagerCustom) { updatePagerActive(slider.active.index); }
1433      // // check for direction control update
1434      if (slider.settings.controls) { updateDirectionControls(); }
1435      // if slider is set to mode: "fade"
1436      if (slider.settings.mode === 'fade') {
1437        // if adaptiveHeight is true and next height is different from current height, animate to the new height
1438        if (slider.settings.adaptiveHeight && slider.viewport.height() !== getViewportHeight()) {
1439          slider.viewport.animate({height: getViewportHeight()}, slider.settings.adaptiveHeightSpeed);
1440        }
1441        // fade out the visible child and reset its z-index value
1442        slider.children.filter(':visible').fadeOut(slider.settings.speed).css({zIndex: 0});
1443        // fade in the newly requested slide
1444        slider.children.eq(slider.active.index).css('zIndex', slider.settings.slideZIndex + 1).fadeIn(slider.settings.speed, function() {
1445          $(this).css('zIndex', slider.settings.slideZIndex);
1446          updateAfterSlideTransition();
1447        });
1448      // slider mode is not "fade"
1449      } else {
1450        // if adaptiveHeight is true and next height is different from current height, animate to the new height
1451        if (slider.settings.adaptiveHeight && slider.viewport.height() !== getViewportHeight()) {
1452          slider.viewport.animate({height: getViewportHeight()}, slider.settings.adaptiveHeightSpeed);
1453        }
1454        // if carousel and not infinite loop
1455        if (!slider.settings.infiniteLoop && slider.carousel && slider.active.last) {
1456          if (slider.settings.mode === 'horizontal') {
1457            // get the last child position
1458            lastChild = slider.children.eq(slider.children.length - 1);
1459            position = lastChild.position();
1460            // calculate the position of the last slide
1461            moveBy = slider.viewport.width() - lastChild.outerWidth();
1462          } else {
1463            // get last showing index position
1464            lastShowingIndex = slider.children.length - slider.settings.minSlides;
1465            position = slider.children.eq(lastShowingIndex).position();
1466          }
1467          // horizontal carousel, going previous while on first slide (infiniteLoop mode)
1468        } else if (slider.carousel && slider.active.last && direction === 'prev') {
1469          // get the last child position
1470          eq = slider.settings.moveSlides === 1 ? slider.settings.maxSlides - getMoveBy() : ((getPagerQty() - 1) * getMoveBy()) - (slider.children.length - slider.settings.maxSlides);
1471          lastChild = el.children('.bx-clone').eq(eq);
1472          position = lastChild.position();
1473        // if infinite loop and "Next" is clicked on the last slide
1474        } else if (direction === 'next' && slider.active.index === 0) {
1475          // get the last clone position
1476          position = el.find('> .bx-clone').eq(slider.settings.maxSlides).position();
1477          slider.active.last = false;
1478        // normal non-zero requests
1479        } else if (slideIndex >= 0) {
1480          //parseInt is applied to allow floats for slides/page
1481          requestEl = slideIndex * parseInt(getMoveBy());
1482          position = slider.children.eq(requestEl).position();
1483        }
1484
1485        /* If the position doesn't exist
1486         * (e.g. if you destroy the slider on a next click),
1487         * it doesn't throw an error.
1488         */
1489        if (typeof (position) !== 'undefined') {
1490          value = slider.settings.mode === 'horizontal' ? -(position.left - moveBy) : -position.top;
1491          // plugin values to be animated
1492          setPositionProperty(value, 'slide', slider.settings.speed);
1493        }
1494        slider.working = false;
1495      }
1496      if (slider.settings.ariaHidden) { applyAriaHiddenAttributes(slider.active.index * getMoveBy()); }
1497    };
1498
1499    /**
1500     * Transitions to the next slide in the show
1501     */
1502    el.goToNextSlide = function() {
1503      // if infiniteLoop is false and last page is showing, disregard call
1504      if (!slider.settings.infiniteLoop && slider.active.last) { return; }
1505	  if (slider.working === true){ return ;}
1506      var pagerIndex = parseInt(slider.active.index) + 1;
1507      el.goToSlide(pagerIndex, 'next');
1508    };
1509
1510    /**
1511     * Transitions to the prev slide in the show
1512     */
1513    el.goToPrevSlide = function() {
1514      // if infiniteLoop is false and last page is showing, disregard call
1515      if (!slider.settings.infiniteLoop && slider.active.index === 0) { return; }
1516	  if (slider.working === true){ return ;}
1517      var pagerIndex = parseInt(slider.active.index) - 1;
1518      el.goToSlide(pagerIndex, 'prev');
1519    };
1520
1521    /**
1522     * Starts the auto show
1523     *
1524     * @param preventControlUpdate (boolean)
1525     *  - if true, auto controls state will not be updated
1526     */
1527    el.startAuto = function(preventControlUpdate) {
1528      // if an interval already exists, disregard call
1529      if (slider.interval) { return; }
1530      // create an interval
1531      slider.interval = setInterval(function() {
1532        if (slider.settings.autoDirection === 'next') {
1533          el.goToNextSlide();
1534        } else {
1535          el.goToPrevSlide();
1536        }
1537      }, slider.settings.pause);
1538	  //allback for when the auto rotate status changes
1539	  slider.settings.onAutoChange.call(el, true);
1540      // if auto controls are displayed and preventControlUpdate is not true
1541      if (slider.settings.autoControls && preventControlUpdate !== true) { updateAutoControls('stop'); }
1542    };
1543
1544    /**
1545     * Stops the auto show
1546     *
1547     * @param preventControlUpdate (boolean)
1548     *  - if true, auto controls state will not be updated
1549     */
1550    el.stopAuto = function(preventControlUpdate) {
1551      // if slider is auto paused, just clear that state
1552      if (slider.autoPaused) slider.autoPaused = false;
1553      // if no interval exists, disregard call
1554      if (!slider.interval) { return; }
1555      // clear the interval
1556      clearInterval(slider.interval);
1557      slider.interval = null;
1558	  //allback for when the auto rotate status changes
1559	  slider.settings.onAutoChange.call(el, false);
1560      // if auto controls are displayed and preventControlUpdate is not true
1561      if (slider.settings.autoControls && preventControlUpdate !== true) { updateAutoControls('start'); }
1562    };
1563
1564    /**
1565     * Returns current slide index (zero-based)
1566     */
1567    el.getCurrentSlide = function() {
1568      return slider.active.index;
1569    };
1570
1571    /**
1572     * Returns current slide element
1573     */
1574    el.getCurrentSlideElement = function() {
1575      return slider.children.eq(slider.active.index);
1576    };
1577
1578    /**
1579     * Returns a slide element
1580     * @param index (int)
1581     *  - The index (zero-based) of the element you want returned.
1582     */
1583    el.getSlideElement = function(index) {
1584      return slider.children.eq(index);
1585    };
1586
1587    /**
1588     * Returns number of slides in show
1589     */
1590    el.getSlideCount = function() {
1591      return slider.children.length;
1592    };
1593
1594    /**
1595     * Return slider.working variable
1596     */
1597    el.isWorking = function() {
1598      return slider.working;
1599    };
1600
1601    /**
1602     * Update all dynamic slider elements
1603     */
1604    el.redrawSlider = function() {
1605      // resize all children in ratio to new screen size
1606      slider.children.add(el.find('.bx-clone')).outerWidth(getSlideWidth());
1607      // adjust the height
1608      slider.viewport.css('height', getViewportHeight());
1609      // update the slide position
1610      if (!slider.settings.ticker) { setSlidePosition(); }
1611      // if active.last was true before the screen resize, we want
1612      // to keep it last no matter what screen size we end on
1613      if (slider.active.last) { slider.active.index = getPagerQty() - 1; }
1614      // if the active index (page) no longer exists due to the resize, simply set the index as last
1615      if (slider.active.index >= getPagerQty()) { slider.active.last = true; }
1616      // if a pager is being displayed and a custom pager is not being used, update it
1617      if (slider.settings.pager && !slider.settings.pagerCustom) {
1618        populatePager();
1619        updatePagerActive(slider.active.index);
1620      }
1621      if (slider.settings.ariaHidden) { applyAriaHiddenAttributes(slider.active.index * getMoveBy()); }
1622    };
1623
1624    /**
1625     * Destroy the current instance of the slider (revert everything back to original state)
1626     */
1627    el.destroySlider = function() {
1628      // don't do anything if slider has already been destroyed
1629      if (!slider.initialized) { return; }
1630      slider.initialized = false;
1631      $('.bx-clone', this).remove();
1632      slider.children.each(function() {
1633        if ($(this).data('origStyle') !== undefined) {
1634          $(this).attr('style', $(this).data('origStyle'));
1635        } else {
1636          $(this).removeAttr('style');
1637        }
1638      });
1639      if ($(this).data('origStyle') !== undefined) {
1640        this.attr('style', $(this).data('origStyle'));
1641      } else {
1642        $(this).removeAttr('style');
1643      }
1644      $(this).unwrap().unwrap();
1645      if (slider.controls.el) { slider.controls.el.remove(); }
1646      if (slider.controls.next) { slider.controls.next.remove(); }
1647      if (slider.controls.prev) { slider.controls.prev.remove(); }
1648      if (slider.pagerEl && slider.settings.controls && !slider.settings.pagerCustom) { slider.pagerEl.remove(); }
1649      $('.bx-caption', this).remove();
1650      if (slider.controls.autoEl) { slider.controls.autoEl.remove(); }
1651      clearInterval(slider.interval);
1652      if (slider.settings.responsive) { $(window).off('resize', resizeWindow); }
1653      if (slider.settings.keyboardEnabled) { $(document).off('keydown', keyPress); }
1654      //remove self reference in data
1655      $(this).removeData('bxSlider');
1656	  // remove global window handlers
1657	  $(window).off('blur', windowBlurHandler).off('focus', windowFocusHandler);
1658    };
1659
1660    /**
1661     * Reload the slider (revert all DOM changes, and re-initialize)
1662     */
1663    el.reloadSlider = function(settings) {
1664      if (settings !== undefined) { options = settings; }
1665      el.destroySlider();
1666      init();
1667      //store reference to self in order to access public functions later
1668      $(el).data('bxSlider', this);
1669    };
1670
1671    init();
1672
1673    $(el).data('bxSlider', this);
1674
1675    // returns the current jQuery object
1676    return this;
1677  };
1678
1679})(jQuery);