1/** 2 * BxSlider v4.1.1 - Fully loaded, responsive content slider 3 * http://bxslider.com 4 * 5 * Copyright 2012, Steven Wanderski - http://stevenwanderski.com - http://bxcreative.com 6 * Written while drinking Belgian ales and listening to jazz 7 * 8 * Released under the WTFPL license - http://sam.zoy.org/wtfpl/ 9 */ 10 11;(function($){ 12 13 var plugin = {}; 14 15 var defaults = { 16 17 // GENERAL 18 mode: 'horizontal', 19 slideSelector: '', 20 infiniteLoop: true, 21 hideControlOnEnd: false, 22 speed: 500, 23 easing: null, 24 slideMargin: 0, 25 startSlide: 0, 26 randomStart: false, 27 captions: false, 28 ticker: false, 29 tickerHover: false, 30 adaptiveHeight: false, 31 adaptiveHeightSpeed: 500, 32 video: false, 33 useCSS: true, 34 preloadImages: 'visible', 35 responsive: true, 36 37 // TOUCH 38 touchEnabled: true, 39 swipeThreshold: 50, 40 oneToOneTouch: true, 41 preventDefaultSwipeX: true, 42 preventDefaultSwipeY: false, 43 44 // PAGER 45 pager: true, 46 pagerType: 'full', 47 pagerShortSeparator: ' / ', 48 pagerSelector: null, 49 buildPager: null, 50 pagerCustom: null, 51 52 // CONTROLS 53 controls: true, 54 nextText: 'Next', 55 prevText: 'Prev', 56 nextSelector: null, 57 prevSelector: null, 58 autoControls: false, 59 startText: 'Start', 60 stopText: 'Stop', 61 autoControlsCombine: false, 62 autoControlsSelector: null, 63 64 // AUTO 65 auto: false, 66 pause: 4000, 67 autoStart: true, 68 autoDirection: 'next', 69 autoHover: false, 70 autoDelay: 0, 71 72 // CAROUSEL 73 minSlides: 1, 74 maxSlides: 1, 75 moveSlides: 0, 76 slideWidth: 0, 77 78 // CALLBACKS 79 onSliderLoad: function() {}, 80 onSlideBefore: function() {}, 81 onSlideAfter: function() {}, 82 onSlideNext: function() {}, 83 onSlidePrev: function() {} 84 }; 85 86 $.fn.bxSlider = function(options){ 87 88 if(this.length == 0) return this; 89 90 // support mutltiple elements 91 if(this.length > 1){ 92 this.each(function(){$(this).bxSlider(options)}); 93 return this; 94 } 95 96 // create a namespace to be used throughout the plugin 97 var slider = {}; 98 // set a reference to our slider element 99 var el = this; 100 plugin.el = this; 101 102 /** 103 * Makes slideshow responsive 104 */ 105 // first get the original window dimens (thanks alot IE) 106 var windowWidth = $(window).width(); 107 var windowHeight = $(window).height(); 108 109 110 111 /** 112 * =================================================================================== 113 * = PRIVATE FUNCTIONS 114 * =================================================================================== 115 */ 116 117 /** 118 * Initializes namespace settings to be used throughout plugin 119 */ 120 var init = function(){ 121 // merge user-supplied options with the defaults 122 slider.settings = $.extend({}, defaults, options); 123 // parse slideWidth setting 124 slider.settings.slideWidth = parseInt(slider.settings.slideWidth); 125 // store the original children 126 slider.children = el.children(slider.settings.slideSelector); 127 // check if actual number of slides is less than minSlides / maxSlides 128 if(slider.children.length < slider.settings.minSlides) slider.settings.minSlides = slider.children.length; 129 if(slider.children.length < slider.settings.maxSlides) slider.settings.maxSlides = slider.children.length; 130 // if random start, set the startSlide setting to random number 131 if(slider.settings.randomStart) slider.settings.startSlide = Math.floor(Math.random() * slider.children.length); 132 // store active slide information 133 slider.active = { index: slider.settings.startSlide }; 134 // store if the slider is in carousel mode (displaying / moving multiple slides) 135 slider.carousel = slider.settings.minSlides > 1 || slider.settings.maxSlides > 1; 136 // if carousel, force preloadImages = 'all' 137 if(slider.carousel) slider.settings.preloadImages = 'all'; 138 // calculate the min / max width thresholds based on min / max number of slides 139 // used to setup and update carousel slides dimensions 140 slider.minThreshold = (slider.settings.minSlides * slider.settings.slideWidth) + ((slider.settings.minSlides - 1) * slider.settings.slideMargin); 141 slider.maxThreshold = (slider.settings.maxSlides * slider.settings.slideWidth) + ((slider.settings.maxSlides - 1) * slider.settings.slideMargin); 142 // store the current state of the slider (if currently animating, working is true) 143 slider.working = false; 144 // initialize the controls object 145 slider.controls = {}; 146 // initialize an auto interval 147 slider.interval = null; 148 // determine which property to use for transitions 149 slider.animProp = slider.settings.mode == 'vertical' ? 'top' : 'left'; 150 // determine if hardware acceleration can be used 151 slider.usingCSS = slider.settings.useCSS && slider.settings.mode != 'fade' && (function(){ 152 // create our test div element 153 var div = document.createElement('div'); 154 // css transition properties 155 var props = ['WebkitPerspective', 'MozPerspective', 'OPerspective', 'msPerspective']; 156 // test for each property 157 for(var i in props){ 158 if(div.style[props[i]] !== undefined){ 159 slider.cssPrefix = props[i].replace('Perspective', '').toLowerCase(); 160 slider.animProp = '-' + slider.cssPrefix + '-transform'; 161 return true; 162 } 163 } 164 return false; 165 }()); 166 // if vertical mode always make maxSlides and minSlides equal 167 if(slider.settings.mode == 'vertical') slider.settings.maxSlides = slider.settings.minSlides; 168 // save original style data 169 el.data("origStyle", el.attr("style")); 170 el.children(slider.settings.slideSelector).each(function() { 171 $(this).data("origStyle", $(this).attr("style")); 172 }); 173 // perform all DOM / CSS modifications 174 setup(); 175 }; 176 177 /** 178 * Performs all DOM and CSS modifications 179 */ 180 var setup = function(){ 181 // wrap el in a wrapper 182 el.wrap('<div class="bx-wrapper"><div class="bx-viewport"></div></div>'); 183 // store a namspace reference to .bx-viewport 184 slider.viewport = el.parent(); 185 // add a loading div to display while images are loading 186 slider.loader = $('<div class="bx-loading" />'); 187 slider.viewport.prepend(slider.loader); 188 // set el to a massive width, to hold any needed slides 189 // also strip any margin and padding from el 190 el.css({ 191 width: slider.settings.mode == 'horizontal' ? (slider.children.length * 100 + 215) + '%' : 'auto', 192 position: 'relative' 193 }); 194 // if using CSS, add the easing property 195 if(slider.usingCSS && slider.settings.easing){ 196 el.css('-' + slider.cssPrefix + '-transition-timing-function', slider.settings.easing); 197 // if not using CSS and no easing value was supplied, use the default JS animation easing (swing) 198 }else if(!slider.settings.easing){ 199 slider.settings.easing = 'swing'; 200 } 201 var slidesShowing = getNumberSlidesShowing(); 202 // make modifications to the viewport (.bx-viewport) 203 slider.viewport.css({ 204 width: '100%', 205 overflow: 'hidden', 206 position: 'relative' 207 }); 208 slider.viewport.parent().css({ 209 maxWidth: getViewportMaxWidth() 210 }); 211 // make modification to the wrapper (.bx-wrapper) 212 if(!slider.settings.pager) { 213 slider.viewport.parent().css({ 214 margin: '0 auto 0px' 215 }); 216 } 217 // apply css to all slider children 218 slider.children.css({ 219 'float': slider.settings.mode == 'horizontal' ? 'left' : 'none', 220 listStyle: 'none', 221 position: 'relative' 222 }); 223 // apply the calculated width after the float is applied to prevent scrollbar interference 224 slider.children.css('width', getSlideWidth()); 225 // if slideMargin is supplied, add the css 226 if(slider.settings.mode == 'horizontal' && slider.settings.slideMargin > 0) slider.children.css('marginRight', slider.settings.slideMargin); 227 if(slider.settings.mode == 'vertical' && slider.settings.slideMargin > 0) slider.children.css('marginBottom', slider.settings.slideMargin); 228 // if "fade" mode, add positioning and z-index CSS 229 if(slider.settings.mode == 'fade'){ 230 slider.children.css({ 231 position: 'absolute', 232 zIndex: 0, 233 display: 'none' 234 }); 235 // prepare the z-index on the showing element 236 slider.children.eq(slider.settings.startSlide).css({zIndex: 50, display: 'block'}); 237 } 238 // create an element to contain all slider controls (pager, start / stop, etc) 239 slider.controls.el = $('<div class="bx-controls" />'); 240 // if captions are requested, add them 241 if(slider.settings.captions) appendCaptions(); 242 // check if startSlide is last slide 243 slider.active.last = slider.settings.startSlide == getPagerQty() - 1; 244 // if video is true, set up the fitVids plugin 245 if(slider.settings.video) el.fitVids(); 246 // set the default preload selector (visible) 247 var preloadSelector = slider.children.eq(slider.settings.startSlide); 248 if (slider.settings.preloadImages == "all") preloadSelector = slider.children; 249 // only check for control addition if not in "ticker" mode 250 if(!slider.settings.ticker){ 251 // if pager is requested, add it 252 if(slider.settings.pager) appendPager(); 253 // if controls are requested, add them 254 if(slider.settings.controls) appendControls(); 255 // if auto is true, and auto controls are requested, add them 256 if(slider.settings.auto && slider.settings.autoControls) appendControlsAuto(); 257 // if any control option is requested, add the controls wrapper 258 if(slider.settings.controls || slider.settings.autoControls || slider.settings.pager) slider.viewport.after(slider.controls.el); 259 // if ticker mode, do not allow a pager 260 }else{ 261 slider.settings.pager = false; 262 } 263 // preload all images, then perform final DOM / CSS modifications that depend on images being loaded 264 loadElements(preloadSelector, start); 265 }; 266 267 var loadElements = function(selector, callback){ 268 var total = selector.find('img, iframe').length; 269 if (total == 0){ 270 callback(); 271 return; 272 } 273 var count = 0; 274 var checkIfAllLoaded = function(){ 275 if(++count == total) callback(); 276 }; 277 selector.find('img, iframe').each(function(){ 278 var el = $(this); 279 if(el.is('img')){ 280 // Use temp image instead of adding timestamp to prevent loading additional image: 281 var img = new Image(), 282 loaded = false; 283 284 $(img).on('load', function (){ 285 if (loaded) return; 286 loaded = true; 287 setTimeout(checkIfAllLoaded, 0); 288 }); 289 290 img.src = el.attr('src'); 291 292 // Check if image has width, that means it is loaded already. 293 // This is because some browsers will not trigger load event if it's from cache. 294 setTimeout(function (){ 295 if (img.width && !loaded){ 296 loaded = true; 297 setTimeout(checkIfAllLoaded, 0); 298 } 299 }, 0); 300 return; 301 } 302 el.on('load', function(){ 303 setTimeout(checkIfAllLoaded, 0); 304 }); 305 }); 306 }; 307 308 /** 309 * Start the slider 310 */ 311 var start = function(){ 312 // if infinite loop, prepare additional slides 313 if(slider.settings.infiniteLoop && slider.settings.mode != 'fade' && !slider.settings.ticker){ 314 var slice = slider.settings.mode == 'vertical' ? slider.settings.minSlides : slider.settings.maxSlides; 315 var sliceAppend = slider.children.slice(0, slice).clone().addClass('bx-clone'); 316 var slicePrepend = slider.children.slice(-slice).clone().addClass('bx-clone'); 317 el.append(sliceAppend).prepend(slicePrepend); 318 } 319 // remove the loading DOM element 320 slider.loader.remove(); 321 // set the left / top position of "el" 322 setSlidePosition(); 323 // if "vertical" mode, always use adaptiveHeight to prevent odd behavior 324 if (slider.settings.mode == 'vertical') slider.settings.adaptiveHeight = true; 325 // set the viewport height 326 slider.viewport.height(getViewportHeight()); 327 // make sure everything is positioned just right (same as a window resize) 328 el.redrawSlider(); 329 // onSliderLoad callback 330 slider.settings.onSliderLoad(slider.active.index); 331 // slider has been fully initialized 332 slider.initialized = true; 333 // bind the resize call to the window 334 if (slider.settings.responsive) $(window).bind('resize', resizeWindow); 335 // if auto is true, start the show 336 if (slider.settings.auto && slider.settings.autoStart && slider.children.length > 1) initAuto(); 337 // if ticker is true, start the ticker 338 if (slider.settings.ticker) initTicker(); 339 // if pager is requested, make the appropriate pager link active 340 if (slider.settings.pager) updatePagerActive(slider.settings.startSlide); 341 // check for any updates to the controls (like hideControlOnEnd updates) 342 if (slider.settings.controls) updateDirectionControls(); 343 // if touchEnabled is true, setup the touch events 344 if (slider.settings.touchEnabled && !slider.settings.ticker) initTouch(); 345 }; 346 347 /** 348 * Returns the calculated height of the viewport, used to determine either adaptiveHeight or the maxHeight value 349 */ 350 var getViewportHeight = function(){ 351 var height = 0; 352 // first determine which children (slides) should be used in our height calculation 353 var children = $(); 354 // if mode is not "vertical" and adaptiveHeight is false, include all children 355 if(slider.settings.mode != 'vertical' && !slider.settings.adaptiveHeight){ 356 children = slider.children; 357 }else{ 358 // if not carousel, return the single active child 359 if(!slider.carousel){ 360 children = slider.children.eq(slider.active.index); 361 // if carousel, return a slice of children 362 }else{ 363 // get the individual slide index 364 var currentIndex = slider.settings.moveSlides == 1 ? slider.active.index : slider.active.index * getMoveBy(); 365 // add the current slide to the children 366 children = slider.children.eq(currentIndex); 367 // cycle through the remaining "showing" slides 368 for (i = 1; i <= slider.settings.maxSlides - 1; i++){ 369 // if looped back to the start 370 if(currentIndex + i >= slider.children.length){ 371 children = children.add(slider.children.eq(i - 1)); 372 }else{ 373 children = children.add(slider.children.eq(currentIndex + i)); 374 } 375 } 376 } 377 } 378 // if "vertical" mode, calculate the sum of the heights of the children 379 if(slider.settings.mode == 'vertical'){ 380 children.each(function(index) { 381 height += $(this).outerHeight(); 382 }); 383 // add user-supplied margins 384 if(slider.settings.slideMargin > 0){ 385 height += slider.settings.slideMargin * (slider.settings.minSlides - 1); 386 } 387 // if not "vertical" mode, calculate the max height of the children 388 }else{ 389 height = Math.max.apply(Math, children.map(function(){ 390 return $(this).outerHeight(false); 391 }).get()); 392 } 393 return height; 394 }; 395 396 /** 397 * Returns the calculated width to be used for the outer wrapper / viewport 398 */ 399 var getViewportMaxWidth = function(){ 400 var width = '100%'; 401 if(slider.settings.slideWidth > 0){ 402 if(slider.settings.mode == 'horizontal'){ 403 width = (slider.settings.maxSlides * slider.settings.slideWidth) + ((slider.settings.maxSlides - 1) * slider.settings.slideMargin); 404 }else{ 405 width = slider.settings.slideWidth; 406 } 407 } 408 return width; 409 }; 410 411 /** 412 * Returns the calculated width to be applied to each slide 413 */ 414 var getSlideWidth = function(){ 415 // start with any user-supplied slide width 416 var newElWidth = slider.settings.slideWidth; 417 // get the current viewport width 418 var wrapWidth = slider.viewport.width(); 419 // if slide width was not supplied, or is larger than the viewport use the viewport width 420 if(slider.settings.slideWidth == 0 || 421 (slider.settings.slideWidth > wrapWidth && !slider.carousel) || 422 slider.settings.mode == 'vertical'){ 423 newElWidth = wrapWidth; 424 // if carousel, use the thresholds to determine the width 425 }else if(slider.settings.maxSlides > 1 && slider.settings.mode == 'horizontal'){ 426 if(wrapWidth > slider.maxThreshold){ 427 // newElWidth = (wrapWidth - (slider.settings.slideMargin * (slider.settings.maxSlides - 1))) / slider.settings.maxSlides; 428 }else if(wrapWidth < slider.minThreshold){ 429 newElWidth = (wrapWidth - (slider.settings.slideMargin * (slider.settings.minSlides - 1))) / slider.settings.minSlides; 430 } 431 } 432 return newElWidth; 433 }; 434 435 /** 436 * Returns the number of slides currently visible in the viewport (includes partially visible slides) 437 */ 438 var getNumberSlidesShowing = function(){ 439 var slidesShowing = 1; 440 if(slider.settings.mode == 'horizontal' && slider.settings.slideWidth > 0){ 441 // if viewport is smaller than minThreshold, return minSlides 442 if(slider.viewport.width() < slider.minThreshold){ 443 slidesShowing = slider.settings.minSlides; 444 // if viewport is larger than minThreshold, return maxSlides 445 }else if(slider.viewport.width() > slider.maxThreshold){ 446 slidesShowing = slider.settings.maxSlides; 447 // if viewport is between min / max thresholds, divide viewport width by first child width 448 }else{ 449 var childWidth = slider.children.first().width(); 450 slidesShowing = Math.floor(slider.viewport.width() / childWidth); 451 } 452 // if "vertical" mode, slides showing will always be minSlides 453 }else if(slider.settings.mode == 'vertical'){ 454 slidesShowing = slider.settings.minSlides; 455 } 456 return slidesShowing; 457 }; 458 459 /** 460 * Returns the number of pages (one full viewport of slides is one "page") 461 */ 462 var getPagerQty = function(){ 463 var pagerQty = 0; 464 // if moveSlides is specified by the user 465 if(slider.settings.moveSlides > 0){ 466 if(slider.settings.infiniteLoop){ 467 pagerQty = slider.children.length / getMoveBy(); 468 }else{ 469 // use a while loop to determine pages 470 var breakPoint = 0; 471 var counter = 0; 472 // when breakpoint goes above children length, counter is the number of pages 473 while (breakPoint < slider.children.length){ 474 ++pagerQty; 475 breakPoint = counter + getNumberSlidesShowing(); 476 counter += slider.settings.moveSlides <= getNumberSlidesShowing() ? slider.settings.moveSlides : getNumberSlidesShowing(); 477 } 478 } 479 // if moveSlides is 0 (auto) divide children length by sides showing, then round up 480 }else{ 481 pagerQty = Math.ceil(slider.children.length / getNumberSlidesShowing()); 482 } 483 return pagerQty; 484 }; 485 486 /** 487 * Returns the number of indivual slides by which to shift the slider 488 */ 489 var getMoveBy = function(){ 490 // if moveSlides was set by the user and moveSlides is less than number of slides showing 491 if(slider.settings.moveSlides > 0 && slider.settings.moveSlides <= getNumberSlidesShowing()){ 492 return slider.settings.moveSlides; 493 } 494 // if moveSlides is 0 (auto) 495 return getNumberSlidesShowing(); 496 }; 497 498 /** 499 * Sets the slider's (el) left or top position 500 */ 501 var setSlidePosition = function(){ 502 // if last slide, not infinite loop, and number of children is larger than specified maxSlides 503 if(slider.children.length > slider.settings.maxSlides && slider.active.last && !slider.settings.infiniteLoop){ 504 if (slider.settings.mode == 'horizontal'){ 505 // get the last child's position 506 var lastChild = slider.children.last(); 507 var position = lastChild.position(); 508 // set the left position 509 setPositionProperty(-(position.left - (slider.viewport.width() - lastChild.width())), 'reset', 0); 510 }else if(slider.settings.mode == 'vertical'){ 511 // get the last showing index's position 512 var lastShowingIndex = slider.children.length - slider.settings.minSlides; 513 var position = slider.children.eq(lastShowingIndex).position(); 514 // set the top position 515 setPositionProperty(-position.top, 'reset', 0); 516 } 517 // if not last slide 518 }else{ 519 // get the position of the first showing slide 520 var position = slider.children.eq(slider.active.index * getMoveBy()).position(); 521 // check for last slide 522 if (slider.active.index == getPagerQty() - 1) slider.active.last = true; 523 // set the repective position 524 if (position != undefined){ 525 if (slider.settings.mode == 'horizontal') setPositionProperty(-position.left, 'reset', 0); 526 else if (slider.settings.mode == 'vertical') setPositionProperty(-position.top, 'reset', 0); 527 } 528 } 529 }; 530 531 /** 532 * Sets the el's animating property position (which in turn will sometimes animate el). 533 * If using CSS, sets the transform property. If not using CSS, sets the top / left property. 534 * 535 * @param value (int) 536 * - the animating property's value 537 * 538 * @param type (string) 'slider', 'reset', 'ticker' 539 * - the type of instance for which the function is being 540 * 541 * @param duration (int) 542 * - the amount of time (in ms) the transition should occupy 543 * 544 * @param params (array) optional 545 * - an optional parameter containing any variables that need to be passed in 546 */ 547 var setPositionProperty = function(value, type, duration, params){ 548 // use CSS transform 549 if(slider.usingCSS){ 550 // determine the translate3d value 551 var propValue = slider.settings.mode == 'vertical' ? 'translate3d(0, ' + value + 'px, 0)' : 'translate3d(' + value + 'px, 0, 0)'; 552 // add the CSS transition-duration 553 el.css('-' + slider.cssPrefix + '-transition-duration', duration / 1000 + 's'); 554 if(type == 'slide'){ 555 // set the property value 556 el.css(slider.animProp, propValue); 557 // bind a callback method - executes when CSS transition completes 558 el.bind('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd', function(){ 559 // unbind the callback 560 el.unbind('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd'); 561 updateAfterSlideTransition(); 562 }); 563 }else if(type == 'reset'){ 564 el.css(slider.animProp, propValue); 565 }else if(type == 'ticker'){ 566 // make the transition use 'linear' 567 el.css('-' + slider.cssPrefix + '-transition-timing-function', 'linear'); 568 el.css(slider.animProp, propValue); 569 // bind a callback method - executes when CSS transition completes 570 el.bind('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd', function(){ 571 // unbind the callback 572 el.unbind('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd'); 573 // reset the position 574 setPositionProperty(params['resetValue'], 'reset', 0); 575 // start the loop again 576 tickerLoop(); 577 }); 578 } 579 // use JS animate 580 }else{ 581 var animateObj = {}; 582 animateObj[slider.animProp] = value; 583 if(type == 'slide'){ 584 el.animate(animateObj, duration, slider.settings.easing, function(){ 585 updateAfterSlideTransition(); 586 }); 587 }else if(type == 'reset'){ 588 el.css(slider.animProp, value) 589 }else if(type == 'ticker'){ 590 el.animate(animateObj, speed, 'linear', function(){ 591 setPositionProperty(params['resetValue'], 'reset', 0); 592 // run the recursive loop after animation 593 tickerLoop(); 594 }); 595 } 596 } 597 }; 598 599 /** 600 * Populates the pager with proper amount of pages 601 */ 602 var populatePager = function(){ 603 var pagerHtml = ''; 604 var pagerQty = getPagerQty(); 605 if(pagerQty <= 1) return; 606 // loop through each pager item 607 for(var i=0; i < pagerQty; i++){ 608 var linkContent = ''; 609 // if a buildPager function is supplied, use it to get pager link value, else use index + 1 610 if(slider.settings.buildPager && $.isFunction(slider.settings.buildPager)){ 611 linkContent = slider.settings.buildPager(i); 612 slider.pagerEl.addClass('bx-custom-pager'); 613 }else{ 614 linkContent = i + 1; 615 slider.pagerEl.addClass('bx-default-pager'); 616 } 617 // var linkContent = slider.settings.buildPager && $.isFunction(slider.settings.buildPager) ? slider.settings.buildPager(i) : i + 1; 618 // add the markup to the string 619 pagerHtml += '<div class="bx-pager-item"><a href="" data-slide-index="' + i + '" class="bx-pager-link">' + linkContent + '</a></div>'; 620 }; 621 // populate the pager element with pager links 622 slider.pagerEl.html(pagerHtml); 623 }; 624 625 /** 626 * Appends the pager to the controls element 627 */ 628 var appendPager = function(){ 629 if(!slider.settings.pagerCustom){ 630 // create the pager DOM element 631 slider.pagerEl = $('<div class="bx-pager" />'); 632 // if a pager selector was supplied, populate it with the pager 633 if(slider.settings.pagerSelector){ 634 $(slider.settings.pagerSelector).html(slider.pagerEl); 635 // if no pager selector was supplied, add it after the wrapper 636 }else{ 637 slider.controls.el.addClass('bx-has-pager').append(slider.pagerEl); 638 } 639 // populate the pager 640 populatePager(); 641 }else{ 642 slider.pagerEl = $(slider.settings.pagerCustom); 643 } 644 // assign the pager click binding 645 slider.pagerEl.delegate('a', 'click', clickPagerBind); 646 }; 647 648 /** 649 * Appends prev / next controls to the controls element 650 */ 651 var appendControls = function(){ 652 slider.controls.next = $('<a class="bx-next" href="">' + slider.settings.nextText + '</a>'); 653 slider.controls.prev = $('<a class="bx-prev" href="">' + slider.settings.prevText + '</a>'); 654 // bind click actions to the controls 655 slider.controls.next.bind('click', clickNextBind); 656 slider.controls.prev.bind('click', clickPrevBind); 657 // if nextSlector was supplied, populate it 658 if(slider.settings.nextSelector){ 659 $(slider.settings.nextSelector).append(slider.controls.next); 660 } 661 // if prevSlector was supplied, populate it 662 if(slider.settings.prevSelector){ 663 $(slider.settings.prevSelector).append(slider.controls.prev); 664 } 665 // if no custom selectors were supplied 666 if(!slider.settings.nextSelector && !slider.settings.prevSelector){ 667 // add the controls to the DOM 668 slider.controls.directionEl = $('<div class="bx-controls-direction" />'); 669 // add the control elements to the directionEl 670 slider.controls.directionEl.append(slider.controls.prev).append(slider.controls.next); 671 // slider.viewport.append(slider.controls.directionEl); 672 slider.controls.el.addClass('bx-has-controls-direction').append(slider.controls.directionEl); 673 } 674 }; 675 676 /** 677 * Appends start / stop auto controls to the controls element 678 */ 679 var appendControlsAuto = function(){ 680 slider.controls.start = $('<div class="bx-controls-auto-item"><a class="bx-start" href="">' + slider.settings.startText + '</a></div>'); 681 slider.controls.stop = $('<div class="bx-controls-auto-item"><a class="bx-stop" href="">' + slider.settings.stopText + '</a></div>'); 682 // add the controls to the DOM 683 slider.controls.autoEl = $('<div class="bx-controls-auto" />'); 684 // bind click actions to the controls 685 slider.controls.autoEl.delegate('.bx-start', 'click', clickStartBind); 686 slider.controls.autoEl.delegate('.bx-stop', 'click', clickStopBind); 687 // if autoControlsCombine, insert only the "start" control 688 if(slider.settings.autoControlsCombine){ 689 slider.controls.autoEl.append(slider.controls.start); 690 // if autoControlsCombine is false, insert both controls 691 }else{ 692 slider.controls.autoEl.append(slider.controls.start).append(slider.controls.stop); 693 } 694 // if auto controls selector was supplied, populate it with the controls 695 if(slider.settings.autoControlsSelector){ 696 $(slider.settings.autoControlsSelector).html(slider.controls.autoEl); 697 // if auto controls selector was not supplied, add it after the wrapper 698 }else{ 699 slider.controls.el.addClass('bx-has-controls-auto').append(slider.controls.autoEl); 700 } 701 // update the auto controls 702 updateAutoControls(slider.settings.autoStart ? 'stop' : 'start'); 703 }; 704 705 /** 706 * Appends image captions to the DOM 707 */ 708 var appendCaptions = function(){ 709 // cycle through each child 710 slider.children.each(function(index){ 711 // get the image title attribute 712 var title = $(this).find('img:first').attr('title'); 713 // append the caption 714 if (title != undefined && ('' + title).length) { 715 $(this).append('<div class="bx-caption"><span>' + title + '</span></div>'); 716 } 717 }); 718 }; 719 720 /** 721 * Click next binding 722 * 723 * @param e (event) 724 * - DOM event object 725 */ 726 var clickNextBind = function(e){ 727 // if auto show is running, stop it 728 if (slider.settings.auto) el.stopAuto(); 729 el.goToNextSlide(); 730 e.preventDefault(); 731 }; 732 733 /** 734 * Click prev binding 735 * 736 * @param e (event) 737 * - DOM event object 738 */ 739 var clickPrevBind = function(e){ 740 // if auto show is running, stop it 741 if (slider.settings.auto) el.stopAuto(); 742 el.goToPrevSlide(); 743 e.preventDefault(); 744 }; 745 746 /** 747 * Click start binding 748 * 749 * @param e (event) 750 * - DOM event object 751 */ 752 var clickStartBind = function(e){ 753 el.startAuto(); 754 e.preventDefault(); 755 }; 756 757 /** 758 * Click stop binding 759 * 760 * @param e (event) 761 * - DOM event object 762 */ 763 var clickStopBind = function(e){ 764 el.stopAuto(); 765 e.preventDefault(); 766 }; 767 768 /** 769 * Click pager binding 770 * 771 * @param e (event) 772 * - DOM event object 773 */ 774 var clickPagerBind = function(e){ 775 // if auto show is running, stop it 776 if (slider.settings.auto) el.stopAuto(); 777 var pagerLink = $(e.currentTarget); 778 var pagerIndex = parseInt(pagerLink.attr('data-slide-index')); 779 // if clicked pager link is not active, continue with the goToSlide call 780 if(pagerIndex != slider.active.index) el.goToSlide(pagerIndex); 781 e.preventDefault(); 782 }; 783 784 /** 785 * Updates the pager links with an active class 786 * 787 * @param slideIndex (int) 788 * - index of slide to make active 789 */ 790 var updatePagerActive = function(slideIndex){ 791 // if "short" pager type 792 var len = slider.children.length; // nb of children 793 if(slider.settings.pagerType == 'short'){ 794 if(slider.settings.maxSlides > 1) { 795 len = Math.ceil(slider.children.length/slider.settings.maxSlides); 796 } 797 slider.pagerEl.html( (slideIndex + 1) + slider.settings.pagerShortSeparator + len); 798 return; 799 } 800 // remove all pager active classes 801 slider.pagerEl.find('a').removeClass('active'); 802 // apply the active class for all pagers 803 slider.pagerEl.each(function(i, el) { $(el).find('a').eq(slideIndex).addClass('active'); }); 804 }; 805 806 /** 807 * Performs needed actions after a slide transition 808 */ 809 var updateAfterSlideTransition = function(){ 810 // if infinte loop is true 811 if(slider.settings.infiniteLoop){ 812 var position = ''; 813 // first slide 814 if(slider.active.index == 0){ 815 // set the new position 816 position = slider.children.eq(0).position(); 817 // carousel, last slide 818 }else if(slider.active.index == getPagerQty() - 1 && slider.carousel){ 819 position = slider.children.eq((getPagerQty() - 1) * getMoveBy()).position(); 820 // last slide 821 }else if(slider.active.index == slider.children.length - 1){ 822 position = slider.children.eq(slider.children.length - 1).position(); 823 } 824 if (slider.settings.mode == 'horizontal') { setPositionProperty(-position.left, 'reset', 0);; } 825 else if (slider.settings.mode == 'vertical') { setPositionProperty(-position.top, 'reset', 0);; } 826 } 827 // declare that the transition is complete 828 slider.working = false; 829 // onSlideAfter callback 830 slider.settings.onSlideAfter(slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index); 831 }; 832 833 /** 834 * Updates the auto controls state (either active, or combined switch) 835 * 836 * @param state (string) "start", "stop" 837 * - the new state of the auto show 838 */ 839 var updateAutoControls = function(state){ 840 // if autoControlsCombine is true, replace the current control with the new state 841 if(slider.settings.autoControlsCombine){ 842 slider.controls.autoEl.html(slider.controls[state]); 843 // if autoControlsCombine is false, apply the "active" class to the appropriate control 844 }else{ 845 slider.controls.autoEl.find('a').removeClass('active'); 846 slider.controls.autoEl.find('a:not(.bx-' + state + ')').addClass('active'); 847 } 848 }; 849 850 /** 851 * Updates the direction controls (checks if either should be hidden) 852 */ 853 var updateDirectionControls = function(){ 854 if(getPagerQty() == 1){ 855 slider.controls.prev.addClass('disabled'); 856 slider.controls.next.addClass('disabled'); 857 }else if(!slider.settings.infiniteLoop && slider.settings.hideControlOnEnd){ 858 // if first slide 859 if (slider.active.index == 0){ 860 slider.controls.prev.addClass('disabled'); 861 slider.controls.next.removeClass('disabled'); 862 // if last slide 863 }else if(slider.active.index == getPagerQty() - 1){ 864 slider.controls.next.addClass('disabled'); 865 slider.controls.prev.removeClass('disabled'); 866 // if any slide in the middle 867 }else{ 868 slider.controls.prev.removeClass('disabled'); 869 slider.controls.next.removeClass('disabled'); 870 } 871 } 872 }; 873 874 /** 875 * Initialzes the auto process 876 */ 877 var initAuto = function(){ 878 // if autoDelay was supplied, launch the auto show using a setTimeout() call 879 if(slider.settings.autoDelay > 0){ 880 var timeout = setTimeout(el.startAuto, slider.settings.autoDelay); 881 // if autoDelay was not supplied, start the auto show normally 882 }else{ 883 el.startAuto(); 884 } 885 // if autoHover is requested 886 if(slider.settings.autoHover){ 887 // on el hover 888 el.hover(function(){ 889 // if the auto show is currently playing (has an active interval) 890 if(slider.interval){ 891 // stop the auto show and pass true agument which will prevent control update 892 el.stopAuto(true); 893 // create a new autoPaused value which will be used by the relative "mouseout" event 894 slider.autoPaused = true; 895 } 896 }, function(){ 897 // if the autoPaused value was created be the prior "mouseover" event 898 if(slider.autoPaused){ 899 // start the auto show and pass true agument which will prevent control update 900 el.startAuto(true); 901 // reset the autoPaused value 902 slider.autoPaused = null; 903 } 904 }); 905 } 906 }; 907 908 /** 909 * Initialzes the ticker process 910 */ 911 var initTicker = function(){ 912 var startPosition = 0; 913 // if autoDirection is "next", append a clone of the entire slider 914 if(slider.settings.autoDirection == 'next'){ 915 el.append(slider.children.clone().addClass('bx-clone')); 916 // if autoDirection is "prev", prepend a clone of the entire slider, and set the left position 917 }else{ 918 el.prepend(slider.children.clone().addClass('bx-clone')); 919 var position = slider.children.first().position(); 920 startPosition = slider.settings.mode == 'horizontal' ? -position.left : -position.top; 921 } 922 setPositionProperty(startPosition, 'reset', 0); 923 // do not allow controls in ticker mode 924 slider.settings.pager = false; 925 slider.settings.controls = false; 926 slider.settings.autoControls = false; 927 // if autoHover is requested 928 if(slider.settings.tickerHover && !slider.usingCSS){ 929 // on el hover 930 slider.viewport.hover(function(){ 931 el.stop(); 932 }, function(){ 933 // calculate the total width of children (used to calculate the speed ratio) 934 var totalDimens = 0; 935 slider.children.each(function(index){ 936 totalDimens += slider.settings.mode == 'horizontal' ? $(this).outerWidth(true) : $(this).outerHeight(true); 937 }); 938 // calculate the speed ratio (used to determine the new speed to finish the paused animation) 939 var ratio = slider.settings.speed / totalDimens; 940 // determine which property to use 941 var property = slider.settings.mode == 'horizontal' ? 'left' : 'top'; 942 // calculate the new speed 943 var newSpeed = ratio * (totalDimens - (Math.abs(parseInt(el.css(property))))); 944 tickerLoop(newSpeed); 945 }); 946 } 947 // start the ticker loop 948 tickerLoop(); 949 }; 950 951 /** 952 * Runs a continuous loop, news ticker-style 953 */ 954 var tickerLoop = function(resumeSpeed){ 955 speed = resumeSpeed ? resumeSpeed : slider.settings.speed; 956 var position = {left: 0, top: 0}; 957 var reset = {left: 0, top: 0}; 958 // if "next" animate left position to last child, then reset left to 0 959 if(slider.settings.autoDirection == 'next'){ 960 position = el.find('.bx-clone').first().position(); 961 // if "prev" animate left position to 0, then reset left to first non-clone child 962 }else{ 963 reset = slider.children.first().position(); 964 } 965 var animateProperty = slider.settings.mode == 'horizontal' ? -position.left : -position.top; 966 var resetValue = slider.settings.mode == 'horizontal' ? -reset.left : -reset.top; 967 var params = {resetValue: resetValue}; 968 setPositionProperty(animateProperty, 'ticker', speed, params); 969 }; 970 971 /** 972 * Initializes touch events 973 */ 974 var initTouch = function(){ 975 // initialize object to contain all touch values 976 slider.touch = { 977 start: {x: 0, y: 0}, 978 end: {x: 0, y: 0} 979 }; 980 slider.viewport.bind('touchstart', onTouchStart); 981 }; 982 983 /** 984 * Event handler for "touchstart" 985 * 986 * @param e (event) 987 * - DOM event object 988 */ 989 var onTouchStart = function(e){ 990 if(slider.working){ 991 e.preventDefault(); 992 }else{ 993 // record the original position when touch starts 994 slider.touch.originalPos = el.position(); 995 var orig = e.originalEvent; 996 // record the starting touch x, y coordinates 997 slider.touch.start.x = orig.changedTouches[0].pageX; 998 slider.touch.start.y = orig.changedTouches[0].pageY; 999 // bind a "touchmove" event to the viewport 1000 slider.viewport.bind('touchmove', onTouchMove); 1001 // bind a "touchend" event to the viewport 1002 slider.viewport.bind('touchend', onTouchEnd); 1003 } 1004 }; 1005 1006 /** 1007 * Event handler for "touchmove" 1008 * 1009 * @param e (event) 1010 * - DOM event object 1011 */ 1012 var onTouchMove = function(e){ 1013 var orig = e.originalEvent; 1014 // if scrolling on y axis, do not prevent default 1015 var xMovement = Math.abs(orig.changedTouches[0].pageX - slider.touch.start.x); 1016 var yMovement = Math.abs(orig.changedTouches[0].pageY - slider.touch.start.y); 1017 // x axis swipe 1018 if((xMovement * 3) > yMovement && slider.settings.preventDefaultSwipeX){ 1019 e.preventDefault(); 1020 // y axis swipe 1021 }else if((yMovement * 3) > xMovement && slider.settings.preventDefaultSwipeY){ 1022 e.preventDefault(); 1023 } 1024 if(slider.settings.mode != 'fade' && slider.settings.oneToOneTouch){ 1025 var value = 0; 1026 // if horizontal, drag along x axis 1027 if(slider.settings.mode == 'horizontal'){ 1028 var change = orig.changedTouches[0].pageX - slider.touch.start.x; 1029 value = slider.touch.originalPos.left + change; 1030 // if vertical, drag along y axis 1031 }else{ 1032 var change = orig.changedTouches[0].pageY - slider.touch.start.y; 1033 value = slider.touch.originalPos.top + change; 1034 } 1035 setPositionProperty(value, 'reset', 0); 1036 } 1037 }; 1038 1039 /** 1040 * Event handler for "touchend" 1041 * 1042 * @param e (event) 1043 * - DOM event object 1044 */ 1045 var onTouchEnd = function(e){ 1046 slider.viewport.unbind('touchmove', onTouchMove); 1047 var orig = e.originalEvent; 1048 var value = 0; 1049 // record end x, y positions 1050 slider.touch.end.x = orig.changedTouches[0].pageX; 1051 slider.touch.end.y = orig.changedTouches[0].pageY; 1052 // if fade mode, check if absolute x distance clears the threshold 1053 if(slider.settings.mode == 'fade'){ 1054 var distance = Math.abs(slider.touch.start.x - slider.touch.end.x); 1055 if(distance >= slider.settings.swipeThreshold){ 1056 slider.touch.start.x > slider.touch.end.x ? el.goToNextSlide() : el.goToPrevSlide(); 1057 el.stopAuto(); 1058 } 1059 // not fade mode 1060 }else{ 1061 var distance = 0; 1062 // calculate distance and el's animate property 1063 if(slider.settings.mode == 'horizontal'){ 1064 distance = slider.touch.end.x - slider.touch.start.x; 1065 value = slider.touch.originalPos.left; 1066 }else{ 1067 distance = slider.touch.end.y - slider.touch.start.y; 1068 value = slider.touch.originalPos.top; 1069 } 1070 // if not infinite loop and first / last slide, do not attempt a slide transition 1071 if(!slider.settings.infiniteLoop && ((slider.active.index == 0 && distance > 0) || (slider.active.last && distance < 0))){ 1072 setPositionProperty(value, 'reset', 200); 1073 }else{ 1074 // check if distance clears threshold 1075 if(Math.abs(distance) >= slider.settings.swipeThreshold){ 1076 distance < 0 ? el.goToNextSlide() : el.goToPrevSlide(); 1077 el.stopAuto(); 1078 }else{ 1079 // el.animate(property, 200); 1080 setPositionProperty(value, 'reset', 200); 1081 } 1082 } 1083 } 1084 slider.viewport.unbind('touchend', onTouchEnd); 1085 }; 1086 1087 /** 1088 * Window resize event callback 1089 */ 1090 var resizeWindow = function(e){ 1091 // get the new window dimens (again, thank you IE) 1092 var windowWidthNew = $(window).width(); 1093 var windowHeightNew = $(window).height(); 1094 // make sure that it is a true window resize 1095 // *we must check this because our dinosaur friend IE fires a window resize event when certain DOM elements 1096 // are resized. Can you just die already?* 1097 if(windowWidth != windowWidthNew || windowHeight != windowHeightNew){ 1098 // set the new window dimens 1099 windowWidth = windowWidthNew; 1100 windowHeight = windowHeightNew; 1101 // update all dynamic elements 1102 el.redrawSlider(); 1103 } 1104 }; 1105 1106 /** 1107 * =================================================================================== 1108 * = PUBLIC FUNCTIONS 1109 * =================================================================================== 1110 */ 1111 1112 /** 1113 * Performs slide transition to the specified slide 1114 * 1115 * @param slideIndex (int) 1116 * - the destination slide's index (zero-based) 1117 * 1118 * @param direction (string) 1119 * - INTERNAL USE ONLY - the direction of travel ("prev" / "next") 1120 */ 1121 el.goToSlide = function(slideIndex, direction){ 1122 // if plugin is currently in motion, ignore request 1123 if(slider.working || slider.active.index == slideIndex) return; 1124 // declare that plugin is in motion 1125 slider.working = true; 1126 // store the old index 1127 slider.oldIndex = slider.active.index; 1128 // if slideIndex is less than zero, set active index to last child (this happens during infinite loop) 1129 if(slideIndex < 0){ 1130 slider.active.index = getPagerQty() - 1; 1131 // if slideIndex is greater than children length, set active index to 0 (this happens during infinite loop) 1132 }else if(slideIndex >= getPagerQty()){ 1133 slider.active.index = 0; 1134 // set active index to requested slide 1135 }else{ 1136 slider.active.index = slideIndex; 1137 } 1138 // onSlideBefore, onSlideNext, onSlidePrev callbacks 1139 slider.settings.onSlideBefore(slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index); 1140 if(direction == 'next'){ 1141 slider.settings.onSlideNext(slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index); 1142 }else if(direction == 'prev'){ 1143 slider.settings.onSlidePrev(slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index); 1144 } 1145 // check if last slide 1146 slider.active.last = slider.active.index >= getPagerQty() - 1; 1147 // update the pager with active class 1148 if(slider.settings.pager) updatePagerActive(slider.active.index); 1149 // // check for direction control update 1150 if(slider.settings.controls) updateDirectionControls(); 1151 // if slider is set to mode: "fade" 1152 if(slider.settings.mode == 'fade'){ 1153 // if adaptiveHeight is true and next height is different from current height, animate to the new height 1154 if(slider.settings.adaptiveHeight && slider.viewport.height() != getViewportHeight()){ 1155 slider.viewport.animate({height: getViewportHeight()}, slider.settings.adaptiveHeightSpeed); 1156 } 1157 // fade out the visible child and reset its z-index value 1158 slider.children.filter(':visible').fadeOut(slider.settings.speed).css({zIndex: 0}); 1159 // fade in the newly requested slide 1160 slider.children.eq(slider.active.index).css('zIndex', 51).fadeIn(slider.settings.speed, function(){ 1161 $(this).css('zIndex', 50); 1162 updateAfterSlideTransition(); 1163 }); 1164 // slider mode is not "fade" 1165 }else{ 1166 // if adaptiveHeight is true and next height is different from current height, animate to the new height 1167 if(slider.settings.adaptiveHeight && slider.viewport.height() != getViewportHeight()){ 1168 slider.viewport.animate({height: getViewportHeight()}, slider.settings.adaptiveHeightSpeed); 1169 } 1170 var moveBy = 0; 1171 var position = {left: 0, top: 0}; 1172 // if carousel and not infinite loop 1173 if(!slider.settings.infiniteLoop && slider.carousel && slider.active.last){ 1174 if(slider.settings.mode == 'horizontal'){ 1175 // get the last child position 1176 var lastChild = slider.children.eq(slider.children.length - 1); 1177 position = lastChild.position(); 1178 // calculate the position of the last slide 1179 moveBy = slider.viewport.width() - lastChild.outerWidth(); 1180 }else{ 1181 // get last showing index position 1182 var lastShowingIndex = slider.children.length - slider.settings.minSlides; 1183 position = slider.children.eq(lastShowingIndex).position(); 1184 } 1185 // horizontal carousel, going previous while on first slide (infiniteLoop mode) 1186 }else if(slider.carousel && slider.active.last && direction == 'prev'){ 1187 // get the last child position 1188 var eq = slider.settings.moveSlides == 1 ? slider.settings.maxSlides - getMoveBy() : ((getPagerQty() - 1) * getMoveBy()) - (slider.children.length - slider.settings.maxSlides); 1189 var lastChild = el.children('.bx-clone').eq(eq); 1190 position = lastChild.position(); 1191 // if infinite loop and "Next" is clicked on the last slide 1192 }else if(direction == 'next' && slider.active.index == 0){ 1193 // get the last clone position 1194 position = el.find('> .bx-clone').eq(slider.settings.maxSlides).position(); 1195 slider.active.last = false; 1196 // normal non-zero requests 1197 }else if(slideIndex >= 0){ 1198 var requestEl = slideIndex * getMoveBy(); 1199 position = slider.children.eq(requestEl).position(); 1200 } 1201 1202 /* If the position doesn't exist 1203 * (e.g. if you destroy the slider on a next click), 1204 * it doesn't throw an error. 1205 */ 1206 if ("undefined" !== typeof(position)) { 1207 var value = slider.settings.mode == 'horizontal' ? -(position.left - moveBy) : -position.top; 1208 // plugin values to be animated 1209 setPositionProperty(value, 'slide', slider.settings.speed); 1210 } 1211 } 1212 }; 1213 1214 /** 1215 * Transitions to the next slide in the show 1216 */ 1217 el.goToNextSlide = function(){ 1218 // if infiniteLoop is false and last page is showing, disregard call 1219 if (!slider.settings.infiniteLoop && slider.active.last) return; 1220 var pagerIndex = parseInt(slider.active.index) + 1; 1221 el.goToSlide(pagerIndex, 'next'); 1222 }; 1223 1224 /** 1225 * Transitions to the prev slide in the show 1226 */ 1227 el.goToPrevSlide = function(){ 1228 // if infiniteLoop is false and last page is showing, disregard call 1229 if (!slider.settings.infiniteLoop && slider.active.index == 0) return; 1230 var pagerIndex = parseInt(slider.active.index) - 1; 1231 el.goToSlide(pagerIndex, 'prev'); 1232 }; 1233 1234 /** 1235 * Starts the auto show 1236 * 1237 * @param preventControlUpdate (boolean) 1238 * - if true, auto controls state will not be updated 1239 */ 1240 el.startAuto = function(preventControlUpdate){ 1241 // if an interval already exists, disregard call 1242 if(slider.interval) return; 1243 // create an interval 1244 slider.interval = setInterval(function(){ 1245 slider.settings.autoDirection == 'next' ? el.goToNextSlide() : el.goToPrevSlide(); 1246 }, slider.settings.pause); 1247 // if auto controls are displayed and preventControlUpdate is not true 1248 if (slider.settings.autoControls && preventControlUpdate != true) updateAutoControls('stop'); 1249 }; 1250 1251 /** 1252 * Stops the auto show 1253 * 1254 * @param preventControlUpdate (boolean) 1255 * - if true, auto controls state will not be updated 1256 */ 1257 el.stopAuto = function(preventControlUpdate){ 1258 // if no interval exists, disregard call 1259 if(!slider.interval) return; 1260 // clear the interval 1261 clearInterval(slider.interval); 1262 slider.interval = null; 1263 // if auto controls are displayed and preventControlUpdate is not true 1264 if (slider.settings.autoControls && preventControlUpdate != true) updateAutoControls('start'); 1265 }; 1266 1267 /** 1268 * Returns current slide index (zero-based) 1269 */ 1270 el.getCurrentSlide = function(){ 1271 return slider.active.index; 1272 }; 1273 1274 /** 1275 * Returns number of slides in show 1276 */ 1277 el.getSlideCount = function(){ 1278 return slider.children.length; 1279 }; 1280 1281 /** 1282 * Update all dynamic slider elements 1283 */ 1284 el.redrawSlider = function(){ 1285 // resize all children in ratio to new screen size 1286 slider.children.add(el.find('.bx-clone')).outerWidth(getSlideWidth()); 1287 // adjust the height 1288 slider.viewport.css('height', getViewportHeight()); 1289 // update the slide position 1290 if(!slider.settings.ticker) setSlidePosition(); 1291 // if active.last was true before the screen resize, we want 1292 // to keep it last no matter what screen size we end on 1293 if (slider.active.last) slider.active.index = getPagerQty() - 1; 1294 // if the active index (page) no longer exists due to the resize, simply set the index as last 1295 if (slider.active.index >= getPagerQty()) slider.active.last = true; 1296 // if a pager is being displayed and a custom pager is not being used, update it 1297 if(slider.settings.pager && !slider.settings.pagerCustom){ 1298 populatePager(); 1299 updatePagerActive(slider.active.index); 1300 } 1301 }; 1302 1303 /** 1304 * Destroy the current instance of the slider (revert everything back to original state) 1305 */ 1306 el.destroySlider = function(){ 1307 // don't do anything if slider has already been destroyed 1308 if(!slider.initialized) return; 1309 slider.initialized = false; 1310 $('.bx-clone', this).remove(); 1311 slider.children.each(function() { 1312 $(this).data("origStyle") != undefined ? $(this).attr("style", $(this).data("origStyle")) : $(this).removeAttr('style'); 1313 }); 1314 $(this).data("origStyle") != undefined ? this.attr("style", $(this).data("origStyle")) : $(this).removeAttr('style'); 1315 $(this).unwrap().unwrap(); 1316 if(slider.controls.el) slider.controls.el.remove(); 1317 if(slider.controls.next) slider.controls.next.remove(); 1318 if(slider.controls.prev) slider.controls.prev.remove(); 1319 if(slider.pagerEl) slider.pagerEl.remove(); 1320 $('.bx-caption', this).remove(); 1321 if(slider.controls.autoEl) slider.controls.autoEl.remove(); 1322 clearInterval(slider.interval); 1323 if(slider.settings.responsive) $(window).unbind('resize', resizeWindow); 1324 }; 1325 1326 /** 1327 * Reload the slider (revert all DOM changes, and re-initialize) 1328 */ 1329 el.reloadSlider = function(settings){ 1330 if (settings != undefined) options = settings; 1331 el.destroySlider(); 1332 init(); 1333 }; 1334 1335 init(); 1336 1337 // returns the current jQuery object 1338 return this; 1339 } 1340 1341})(jQuery);